Is collagenase-3 (MMP-13) expression in chondrosarcoma of the jaws a true marker for tumor aggressiveness?
© Zyada and Shamaa; licensee BioMed Central Ltd. 2008
Received: 10 March 2008
Accepted: 13 June 2008
Published: 13 June 2008
Matrix metalloproteinases (MMPs) play an important role in the modeling and remodeling of the extracellular matrix in both physiologic and pathologic states and thus plays an important role in tumor progression. Human collagenase-3 (MMP-13) is a member of matrix metalloproteinase family of enzymes that was originally identified in breast carcinomas and subsequently detected during fetal ossification and in arthritic processes.
The present study was designed to investigate the expression MMP-13 and to correlate its expression with clinicopathological parameters in chondrosarcoma of the jaws.
Archival tumor tissues from 11 patients with chondrosarcoma of the jaws were analyzed by immunohistochemistry for the expression of MMP-13. Clinical information was obtained through the computerized retrospective database from the tumor registry between 1998 to 2006.
Eight of 11 cases (72.8 %) of chondrosarcomas showed a positive reaction for MMP-13, whereas two cases of normal cartilage were negative for this collagenase. As regard the clinicopathological parameters, there was no correlation between MMP-13 expression and sex, age and tumor site. While, there were significant associations between MMP-13 expression and both of mitotic counts and necrosis. On the other hand, there was a significant difference between low and high grade tumors (P < 0.05) regarding MMP-13 expression. Also, there was no significant correlation between MMP-13 expression in primary lesions and their local recurrence.
MMP-13 is expressed in the majority of chondrosarcoma of the jaws. It is also noteworthy that the expression of MMP-13 may be related to tumor biological aggressiveness and used to aid in predicting patient's poor prognosis.
Chondrosarcoma, a malignant cartilage-forming mesenchymal tumor, displays a wide range of clinical behavior that can be difficult to predict with histological analysis [1, 2]. These tumors account for approximately 25% of all malignant tumors arising from the skeletal system , but are considered by most authorities to involve the jaws only rarely; probably less than 1% of all chondrosarcomas arise in the head and neck area .
Controversies surrounding the relationship between chondrosarcoma of the jaws and chondrosarcoma of the skeleton have revolved around their biologic behavior, histopathological features and clinical response to conservative therapy. Chondrosarcoma of jaws is locally aggressive with a high recurrence rate but rarely metastasize to distant sites . If chondrosarcoma spreads from its primary site (i.e., metastasizes), it usually spreads to the lungs. Metastasis is rare with low-grade tumors, but has been seen, even up to 10 years after diagnosis . About half of grade III and nearly all dedifferentiated chondrosarcomas will metastasize. Up to 13% of recurrent chondrosarcomas are of a higher grade than the original neoplasm [7, 8].
Conventional chondrosarcomas can be categorized according to their location in bone into central, peripheral, and juxtacortical chondrosarcomas. Rare subtypes of chondrosarcoma, including dedifferentiated, mesenchymal, and clear cell chondrosarcoma are discerned, together constituting 10%–15% of all chondrosarcomas . Clear cell chondrosarcoma is a low -grade malignant tumor and tends to metastasis rarely . While, aggressive chondrosarcoma subtypes, such as dedifferentiated and mesenchymal chondrosarcomas bear a poor prognosis .
Histological grading is the best and most commonly used marker at present for the prognosis of chondrosarcomas; however, it is also subject to interobserver variability . This is worrisome, because therapy for grade I and grade II chondrosarcoma may differ. Wide surgical excision remains the best available treatment for intermediate-to high-grade tumors . Most treatment failures are due to local recurrences .
Currently, treatment decisions in chondrosarcomas are guided by clinical-pathological factors such as age, sex, metastasis, recurrence, and histological grade. Although useful, these factors fail to provide definitive information regarding the overall aggressiveness of a tumor and its potential to recur. In theory, a factor that consistently identified patients at risk for recurrent disease would help to improve disease-free survival by allowing physicians to select high-risk patients for more aggressive treatment. In addition, identification of a biological marker of aggressive disease would help to provide new avenues for rational drug design targeted against specific molecular defects .
In recent years, several biologic markers have been identified that they may provide additional diagnostic and prognostic information in the management of chondrosarcomas .
The matrix metalloproteinases (MMPs) comprise a family of at least 25 enzymes that degrade the extracellular matrix . These enzymes operate during normal development in tissue differentiation and remodeling [16, 17], but are also active under pathological conditions to cause inflammatory disease, degradation of bone  and cartilage , as well as tumor metastasis [20, 21]. They are secreted as inactive latent forms, depend upon a zinc-binding active site, and are inhibited by specific proteins referred to as the tissue inhibitors of matrix metalloproteinases or TIMPs [22–24]. In general, these MMPs enzymes are classified according to their substrate specificity and structural similarities [25–27]. There are four major subgroups: (a) the collagenases degrade collagen types I, II and III , (b) the gelatinases act on types IV, V, VII and X collagens , (c) elastin and the stromelysins shows a broader specificity, acting on proteoglycans, laminin, and fibronection  and (d) MT-MMPs that represent membrane-bound forms of the enzymes, which activate latent MMP-2 and can cleave collagen at the classic site . MMPs expression is differentially regulated by several growth factors .
Human collagenase-3 (MMP-13) is a recently identified member of the matrix metalloproteinase (MMP) family that was originally isolated from breast carcinoma . Biochemical characterization of colloagenase-3 has revealed that it is a very potent enzyme that, after activation through a proteolytic cascade mechanism, displays a broad spectrum of activity against connective tissue components . In addition to its proteolytic activity on fibrillar collagens, collagenase-3 is also a powerful gelatinase and may thus contribute to further degradation the initial cleavage products of collagenolysis to small fragments suitable for further metabolism . Very recent studies have provided that collagenase-3 may also degrade the large cartilage proteoglycan aggrecan  and other components of the extracellular matrix and basement membranes, including type IV collagen, fibronectin, and tenascin .
Preliminary studies on the prognostic value of collagenase-3 in breast cancer have revealed that this enzyme is a marker of poor clinical outcome in breast cancer patients . In addition, recent studies have shown that collagenase-3 is also over-expressed by a subset of squamous cell carcinomas with extensive local invasion [36–38], but has only rarely been described in connective tissue tumors [39, 40]. To date, there have been no reported among the English language literature describing the possible production of this enzyme by chondrosarcoma of the jaws. In this regard, the finding that collagenase-3 is produced by chondrocytes during human fetal development [41, 42] and in joint-destructive processes [43, 44] prompted us to examine the possibility that this enzyme could be also associated with tumor processes involving these cells. The present study was designed to evaluate MMP-13 immunohistochemistry for its presence in a series of chondrosarcoma of the jaws as well as normal cartilage. It is also aimed to investigate relation between its expression and clinico-pathological parameters of this tumor.
Patients with chondrosarcoma of the jaws were treated by surgical resection as a primary means of disease control. Of the treated patients, eleven had archival paraffin-embedded specimens and adequate clinical history to enable the following study. They were selected from paraffin blocks archives of Oral and General Pathology Departments, Faculty of Dentistry and Faculty of Medicine, Mansoura University between 1998 to 2006. All cases did not previously receive chemo-or radiotherapy before the operation. Chondrosarcomas were graded according to WHO classification . The grading is based primarily on nuclear size of tumor cells, nuclear staining (hyperchromasia, or darker staining of nuclear material) and cellularity. Mitotic figures and necrosis are additional features useful in grading.
Two cases of normal cartilage were obtained from condylar cartilage of a mandible recommended for hemimandibulectomy due to evidence of squamous cell carcinoma lesion.
I- Clinical study
The clinical data were collected retrospectively through the computerized retrospective database from the tumor registry, regarding age, sex, site and recurrence.
II- Histological study
Sections of 4 μm thickness were cut, deparaffinized, rehydrated and stained with (a) hematoxylin and eosin for re-evaluation and confirmation of histopathological malignancy grading diagnosis and (b) for the immunohistochemical evaluation of MMP-13 expression.
III- Immunohistochemical study
Paraffin sections were employed for immunostaining for collagenase-3 (MMP-13) (mouse monocolonal antibody) clone (lab vision corporation VIII A2), by the standard avidin-biotin peroxidase complex technique (ABC) (Vectastain ABC kit; Vector Laboratories, Burlingame, CA, USA), according to Hsu et al., . Sections were rehydrated by passing through xylene and a series of graded alcohols (90% to 70%), then to water. The rehydrated slides were treated sequentially with 0.3% hydrogen peroxide (H2O2) in methanol for 30 minutes to block endogenous peroxidase activity. The slides were placed in 10 mM citric acid buffer at pH 6.0 and underwent antigen retrieval for 10 min at 750 w and 95°c in a microwave oven followed by cooling at room temperature for 20 minutes. According to the manufacturer, the primary antibody MMP-13 (cat. ≠ 825- R7) is ready to use (7.0 ml), applied on the sections, and stored overnight at 4°c. Then, the slides were incubated with the second biotinylated antibody and the avidin-biotin complex reagent (Vector Laboratories, Burlingame, CA, USA). After 30 min at room temperature, the reaction was developed with using diaminobenzidine (DAB) as chromogen. The sections were then counterstained with Mayer's hematoxylin before mounting.
To guard against false negative and false positive results, negative and positive control sections were used in each batch.
Negative control sections were performed by substituting non-immune serum for MMP-13. Positive control sections of human breast carcinoma were also included.
Quantitation of immunoreactivity was performed using an Olympus light microscope interfaced via a Sony camera to an image analysis system (Qwin Pro, Leica, Wetzlar, Germany). The percentages of collagenase-3. immunopositive cells were obtained from 20 random fields per case/section using a 10× objective lens.
Semiquantitative estimation of collagenase-3 immunostaining intensities was made in immunopositive cells by arbitrarily assigning as follows: negative (-) = 100% of cells negative, mild (+) = (0% – < 25%) of cells positive, moderate (++) = (25% – >50%) of cells positive and intense (+++) = (75% – 100%) of the cells positive.
The staining intensity in MMP-13 positive cases was verified as follows:
• Strong: Densely stained reaction visible at low magnification (objective 4×).
• Weak: faintly cytoplasmic reaction only visible using a higher magnification.
Data were analyzed for significance of difference by chi-square analysis of 2 × 2 contingency tables by the Kwikstat computer program (Texa soft software) . P-value is considered significant when P ≤ 0.05.
In this study, eleven cases of chondrosarcoma of the jaws were examined. The age of our patients ranged between 14–68 years with a mean of 39.7 years. Regarding the sex, seven patients were males and four females. The most frequent site of involvement was the mandible (eight cases) followed in frequency by the maxilla, in the anterior region (three cases). Three of whom had a recurrence.
On microscopic analysis, lower grade chondrosarcomas composed of lobules of chondrocytes in a chondriod background, separated by fibrous septa (Fig. 1). By contrast, higher-grade lesions tend to harbor regions of densely packed hyperchromatic malignant looking cells. Myxoid changes or chondroid matrix liquefaction is a common feature of chondrosarcomas particularly in Grade II and Grade III lesions. Grade II (or intermediate grade) is more cellular with a greater degree of nuclear atypia, hyperchromasia and nuclear size (Fig. 2). Grade III (or high grade) tumors have significant areas of marked pleomorphism, large cells with more hyperchromatic nuclei than grade II (Fig. 3). Occasional giant cells, abundant necrosis and mitoses are frequently detected.
Mitotic counts were between 2 and 35 per 10 high power field (mean = 8.5). Necrosis was present in 7 of cases: less than 50% in 4 tumors and more than 50% in 3 tumors.
Pattern of MMP-13 immunostaining
Immunohistochemical staining reaction for MMP-13 in normal cartilage and chondrocarcomas.
No of cases
Intensity of staining
Percentage of positive cells (%)
0 %–4.2 %
Relation between MMP-13 expression and clinico-pathological parameters of chondrosarcomas (Table 2)
Correlation between MMP-13 expression and clinicopathological parameters of chondrosarcoma patients.
No. of patients
MMP-13 (-ve) (n = 3) %
MMP-13 (+ve) (n = 8) %
The correlation between MMP-13 expression and clinicopathological parameters of the jaws chondrosarcoma cases is summarized Table 2. There was no significant difference between MMP-13 positive and negative groups regarding to age and sex of the patients as well as tumor site. In contrast, there was significant difference (P < 0.05) between the two groups concerning the mitotic counts and necrosis. Comparing the intensity of MMP-13 reaction between low and high grade chondrosarcomas revealed that the difference was significant (P < 0.05). Regarding the recurrence, the highest expression of MMP-13 was observed in all the examined specimens. However, there was no significant correlation between MMP-13 expression in primary lesions and their local recurrence.
Human collagenase-3 (MMP-13), a new member of the MMP family, is expressed by breast tumors . It is a powerful collagenolytic and gelatinolytic enzyme that preferentially cleaves type II collagen and it can therefore be implied that this enzyme may play a considerable role in connective tissue turnover . MMP-13 plays an important role in tumor progression in numerous human malignancies , including colorectal cancer , breast cancer , squamous cell carcinomas [36, 37], and melanoma .
Absence of MMP-13 expression in normal cartilage [41–51] may be explained by the destruction of MMP-13 by other peptidases related to digestion or possibly due to the very low rate of its synthesis in this tissue . Also, it might be due to the prolonged duration of the slow process of ossification that is preceded by cartilage matrix degradation by this collagenase [41, 42]. Normally, MMP-13 expression by chondrocytes appears to be limited to cartilage development. Chondrocytes produce MMP-13 to remove type II collagen at the growth plate during bone formation [41, 42]. Whereas neoplastic chondrocytes were the most immunoreactive cells in the tumor sections examined. The involvement of chondrocytes in MMP-13 production in chondrosarcoma of jaws is related to their roles in matrix turnover [32–52]. Chondrocytes maintain the integrity of the cartilage in normal joints, but in the pathological conditions, chondrocytes are influenced to change their properties by the action of inflammatory cytokines to begin secreting matrix-degrading enzymes and to eventually cause tumor. Therefore, the relative role of collagenase-3 in chondrosarcoma becomes important .
In the current study, it is of interest that, despite the fact that most of analyzed chondrosarcoma cases were positive for MMP-13 expression, there were clear variations in the percentage of positive cells and the intensity of staining. The highest collagenase-3 (MMP-13) positive immunoreactivity was found among grade III chondrosarcoma cases. While, the weakest reaction for MMP-13 was noted in most cases of grade I chondrosarcoma. In accordance with Uria et al , these variation in MMP-13 staining intensity may be dependant on the biological behavior and histopathological features (degree of cellularity and pleomorphism) in this tumor.
Staining for MMP-13 is usually cytoplasmic but nuclear staining was also seen in some cases. This finding was in accordance with the results of other reports , its significance is undetermined, but its presence warrants documentation. This observation may be attributed to MMP-13 Ab used here is over expressed in its early stages in the nucleus or it may possibly due to alteration in the processing or stability of MMP-13. Strong expression of cytoplasmic and nuclear MMP-13 was observed with high grade tumors. Thus, nuclear MMP-13 staining may help to identify a category with worse prognosis in this tumor.
Strong immunoreactivity of MMP-13 in chondrocytes located near blood vessels may be due to increased response of malignant chondrocytes to the inductive effect of the stimulatory factors produced by endothelial cells such as different cytokines (IL-1β, TGF-β or TNF-α) [18–56]. These factors were previously found to play important roles in the induction of collagenase-3 in fibroblasts, keratinocytes, or primary chondrocytes [39–53].
MMP-13 is over-expressed in breast carcinomas but not in normal mammary gland nor in benign mammary lesions [30–58]. Additional reports revealed similar results among squamous cell carcinomas [18–56] and malignant melanoma . This observation suggests that up-regulation of MMP-13 may be somewhat linked to the malignant transformation and contribute to the progression of these tumors . MMP-13 could play a critical role in the uncontrolled lytic processes occurring during malignant progression. This possibility is consistent with biochemical properties of this enzyme which has been characterized as a potent proteinase with a wide substrate specificity including a preferential degrading activity on type II collagen [31–44] which is the most abundant type in articular cartilage [60, 61].
The increase in MMP-13 expression may be necessary for the activation of other MMPs that have previously been identified in chondrosarcoma such as MMP-2 and MMP-9  it is also activated by MMP-2, MMP-3, and MTI-MMP . Furthermore, it is logical that tumors have far higher amounts of MMP-13 activity because this molecule catalyses the breakdown of ECM necessary for invasion. Similarly, normal chondrocytes have no requirement for MMP-13 mediated ECM breakdown, or increased activation of other MMPs. These findings again strengthen the link between MMP-13 expression and tumor progression.
The mechanisms involved in MMP-13 activation are complex. Previous investigations reported that the production of a growth factor called basic fibroblast growth factor (bFGF) by the malignant chondrocytes that stimulates the same cell to produce collagenase-3 (MMP-13) [23–64]. This factor might be responsible for the currently observed increase expression of MMP-13 among the high-grade cases of chondrosarcoma of jaws. The precise molecular mechanisms responsible for collagenase-3 up-regulation in chondrosarcoma cells in response to bFGF have not yet been elucidated, although it is likely that members of the FGF receptor family may be involved [62–65]. The availability of a phenotypically stable chondrosarcoma cell line with ability to produce collagenase-3 after bFGF treatment will be very helpful for further evaluation. The precise mechanisms mediating the bFGF elicited induction of this MMP gene in human chondrosarcoma . These variations need further investigations to reveal possible implication to the clinical outcome.
Fong et al.,  found that there was no significant association between MMP-13 expression and patient's age, tumor site and local recurrence in chondrosarcomas. This result was in accordance with our results.
A finding of particular interest in this study was the occurrence of positive MMP-13 in most of the mitotically active cells. This finding may reflect the high expression of MMP-13 in the cases with high score of mitosis. Accordingly, it can be claimed that the presence of MMP-13 might be associated with proliferative activity and tumor aggressiveness .
A significant association between MMP-13 expression and patient's poor prognosis was observed in this study. This finding was in agreement with previous reports on breast carcinoma , oral squamous cell carcinoma  and malignant melanoma . On the contrary, others  have found no correlation between MMP-13 over-expression and prognosis in chondrosarcoma. This confliction can be attributed to variables in ethnic and environmental factors influencing the tumor growth in different populations. However, the number of the cases that examined in the present work is small to consider this a true confliction.
The ability to predict the biologic behavior of cartilaginous neoplasms has been difficult and many studies have sought to identify a marker for recurrence [66, 67]. The expression of MMP-13 was present in all the examined specimens. However, it could not be correlated with disease recurrence. This result was in agreement with Scully et al.,  who found that the expression of MMP-13 has no prognostic significance for recurrence in chondrosarcoma. It has been reported that as a tumor dedifferentiates and becomes more aggressive biologically, there is a phenotypic drift that results in increased amounts of type I collagen being synthesized [69, 70]. It is possible that specificity for cleavage of type I collagen may be more important than that of type II collagen to permit cell egression and this is what leads to the observed results.
The understanding of cancer pathogenesis is rapidly growing and evidence indicates that several molecular genetic markers are involved in the initiation and/or progression of the disease. The interactions of the molecular genetic changes are complex; however, some may be important targets for the development of specific inhibitors to serve as potential chemotherapeutic agents. An extracellular matrix and basement membrane turnover is regulated by a delicate balance between the molecular factors that participate in the production, activation, and inhibition of MMPs and the production of natural tissue inhibitors of matrix metalloproteinases (TIMPs) . Because of their central role in tumor invasion and metastasis, MMPs are potential targets for therapeutic intervention. Several investigations have demonstrated the effectiveness of anti-MMP therapy . A synthetic small molecule has been shown to inhibit the endotoxin and cytokine-induced synthesis of MMP . The inhibition of MMPs such as MMP-13 has produced encouraging results by decreasing the number, size and speed of development of metastatic nodules in animals . In the present study, the MMP-13 expression was detected in 72.8 % of the samples. The fact that MMP-13 activation is likely to occur in chondroasrcoma of the jaws may make it particularly suitable for treatment with the emerging class of drugs to block MMP-13 secretion and matrix invasion. Using MMP-13 inhibition as one arm of a multitargeted approach will have benefits for the treatment of chondroasrcoma of the jaws, when a larger series of studies confirms MMP-13 representation in these tumors. In addition, considering the many factors involved such as tissue inhibitors of metalloproteinases (TIMPs) or various stimulating factors for MMPs, the relationship between chondroasrcoma of the jaws and TIMPs and other subtypes of MMPs in worthy of further studies.
1- On the basis of positive expression of MMP-13 in the majority of chondrosarcoma of the jaws and absence of detectable expression in normal cartilage, a possible role for this metalloproteinase in the tumoral process is proposed.
2- The present study provides evidence of the prognostic significance of MMP-13 in chondrosarcoma of the jaws where the association between this marker and mitotic counts, necrosis and high grade tumors suggests the possible role of MMP-13 in determining the highly aggressive tumors.
3- It may become a therapeutic target for jaws chondrosarcoma's patients with MMP-13 positive tumor.
These results are preliminary because of the small sample size and should be verified in a larger number of cases. Further exploration of these findings and correlation with clinical follow-up are needed to corroborate these associations. Similarly, it will be of interest to examine whether the small percentage of benign lesions producing MMP-13 could be indicative of an increased risk of malignant transformation in these patients.
- Berend KR, Toth AP, Harrelson JM, Layfielid LJ: Association between ratio of matrix metalloproteinase-1 and local recurrence, metastasis, and survival in human chondrosarcoma. J Bone Joint Surg Am. 1998, 80 (1): 11-17.View ArticlePubMed
- Rizzo M, Ghert MA, Harrelson JM, Scully SP: Chondrosarcoma of bone: analysis of 108 cases and evaluation for predictors of outcome. Clin Orthop Relat Res. 2001, 391: 224-233.View ArticlePubMed
- Schajowic ZF: Tumors and tumor-like lesions of the bone. Pathology, radiology and treatment. 1994, Berlin, Springer-Verlag, 201-256. 2View Article
- Mankin HJ, Cantley KP, Lippiello L, Schiller AL, Campbell CJ: The biology of human chondrosarcomas: description of the cases, grading, and biochemical analysis. J Bone Joint Surg. 1980, 62: 160-175.PubMed
- Nevile BW, Damm DD, Allen CM, Bouquot JE: Oral and maxillofacial pathology. 2003, W.B. Saunders Company. Phil/Lond/tronto
- Lee FY, Mankin HJ, Fondren G, Gebhardt MC, Springfield DS, Rosenberg AE, Jennings LC: Chondrosarcoma of bone: an assessment of outcome. J Bone Joint Surg Am. 1999, 81: 326-38.View ArticlePubMed
- Bjornsson J, McLeod RA, Unni KK, Ilstrup DM, Pritchard DJ: Primary chondrosarcoma of long bones and limb girdles. Cancer. 1998, 83: 2105-2119.View ArticlePubMed
- Evans HL, Ayala AG, Romsdahl MM: Prognostic factors in chondrosarcoma of bone: a clinicopathologic analysis with emphasis on histologic grading. Cancer. 1977, 40: 818-31.View ArticlePubMed
- Gelderblom H, Hogendoorn PCW, Dijkstra SD, van Rijswijk CS: The clinical approach towards chondrosarcoma. The Oncologist. 2008, 13: 320-329.View ArticlePubMed
- Donati D, Yin JQ, Colangeli M: Clear cell chondrosarcoma of bone: Long time follow-up of 18 cases. Arch Orthop Trauma Surg. 2008, 128: 137-142.View ArticlePubMed
- Grimer RJ, Goheger G, Taminiau A: Dedifferentiated chondrosarcoma: Prognostic factors and outcome from a European group. Eur j Cancer. 2007, 43: 2060-2065.View ArticlePubMed
- Skeletal Lesions Interobserver Correlation among Expert Diagnosticians (SLICED) STUDY Group: Reliability of histopathologic and radiologic grading of cartilaginous neoplasms in long bones. J Bone Joint Surg Am. 2007, 89: 2113-2123.View Article
- Bovee JV, Cleton-Jansen AM, Taminiau AH, Hogendoorn PC: Emerging pathways in the development of chondrosarcoma of bone and implications for targeted treatment. Lancet Oncol. 2005, 6: 599-607.View ArticlePubMed
- Rozeman LB, Hogendoorn PCW, Bovée JVMG: Diagnosis and prognosis of chondrosarcoma of bone. Expert Review of Molecular Diagnostics. 2002, 5: 461-472.View Article
- Ii M, Yamamoto H, Adachi Y, Maruyama Y, Shinomura Y: Role of matrix metalloproteinase-7 (Matrilysin) in human cancer invasion, apoptosis, growth and angiogenesis. Exp Biol Med (Maywood). 2006, 231 (1): 20-27.
- Kleiner DE, Stetler-Stevenson WG: Matrix metalloproteinases and metastasis. Cancer chemther pharmacol. 1999, 43 (suppl): s42-s51.View Article
- Moses MA, Wiederschain D, Loughlin KR: Increased incidence of matrix metalloproteinases in urine of cancer patients. Cancer Res. 1998, 58: 1395-1399.PubMed
- Coussens LM, Fingleton B, Matrisian LM: Marixmetalloproteinase inhibitors and cancer: trials and tribulations. Science. 2002, 295 (5564): 2387-2392.View ArticlePubMed
- Declerck YA, Shimada H, Taylor SM, Lagley KE: Matrix metaloproteinases and their inhibitors in tumor progression. Ann NY Acad Sci. 1994, 732: 222-232.View Article
- Mengshol JA, Mix KS, Brinckerhoff CE: Matrix metalloproteinases as therapeutic targets in arthritic diseases: bull's-eye or missing the mark?. Arthritis Rheum. 2002, 46: 13-20.View ArticlePubMed
- Martel-pelletier J, Laieunesse D, Pelletier JP: Eitopathogensis of osteoarthritis in: Koopman WJ, ed. Arthritis and allied conditions. A textbook of rheumatology. 2004, Baltimore: Lippincott, Williams & Wilkins, 2199-2226.
- Munshi HG, Wu YI, Mukhopadhyay S, Ottaviano AJ, Sassano A: Differential regulation of membrane type 1- matrix metalloproteinase activity by ERK 1/2- and p38 MAPK- modulated tissue inhibitor of metalloproteinases 2 expression controls transforming growth factor – β1, -induced pericellular collagenolysis. J Biol Chem. 2004, 279 (37): 39042-39050.View ArticlePubMed
- Boileau C, Pelletier JP, Tardif G, Fahmi H, Laufer S: The regulation of human MMP-13 by licofelone, an inhibtor of cycle-oxygenases and 5-lipoxygenase, in human osteoarthritic chondrocytes is mediated by the inhibition of the p38 MAP kinase signaling pathway. Ann Rheym Dis. 2005, 64: 891-898.View Article
- Nyberg P, Heikkilas P, Sora T, Luostarinen J, Heljasvaara R: Endostatin inhibits human tongue carcinoma cell invasion and intravasation and blocks the activation of matrix metalloprotinase -2, -9 and -13. J Biol Chem. 2003, 278 (25): 22404-22411.View ArticlePubMed
- Parsons SL, Watson SA, Brown PD, Collins HM, Steele RJC: Matrix metalloproteinases. Br J Surg. 1997, 84: 160-166.View ArticlePubMed
- Curran S, Murray GI: Matrix metalloproteinanses in tumor invasion and metastasis. J Pathol. 1999, 189: 300-308.View ArticlePubMed
- Ohuchi E, Imai K, Fuji Y, Sato H, Seiko M, Okada Y: Membrane type I matrix metalloproteinase digest interstitial collagens and other extracellular matrix macromolecules. J Biol Chem. 1997, 272: 2446-2451.View ArticlePubMed
- Velesco G, Cal S, Merlos-Suarez A, Ferrando AA, Alverez S: Human MTb-matrix metalloproteinase: identification, progelatinase A activation, and expression in brain tumors. Cancer Res. 2000, 60: 877-882.
- Hotary K, Allen E, Punturieri A, Tana I, Weiss SJ: Regulation of cell invasion and morphogenesis in a three-dimensional type I collagen matrix. J cell Biol. 2000, 149: 1309-1323.PubMed CentralView ArticlePubMed
- Freije JP, Diez-Itza I, Balbin M, Sanchez LM, Blasco R, Tolivia J, Lopez-Otin C: Molecular cloning and expression of collagenase-3, a novel human matrix metalloproteinase produced by breast carcinomas. J Biol Chem. 1994, 269: 16766-16773.PubMed
- Knauper V, Will H, Lopez-Otin C, Smith B, Atkinson SJ, Stanton H, Hembry RM, Murphy G: Cellular mechanisms for human procollagenase-3 (MMP-13) activation: evidence that MTI-MMP (MMP-14) and gelatinase A (MMP-2) are able to generate active enzyme. J Biol Chem. 1996, 271: 17124-17131.View ArticlePubMed
- Knauper V, Lopez-Otin C, Smith B, Knight G, Murphy G: Biochemical characterization of human collagenase-3. J Biol Chem. 1996, 271: 1544-1550.View ArticlePubMed
- Fosang AJ, Last K, Knauper V, Murphy G, Neame PJ: Degradation of cartilage aggrecan by collagenase-3 (MMP-13). FEBS Lett. 1996, 380: 17-20.View ArticlePubMed
- Knauper V, Cowell S, Smith B, Lopez-Otin C, O'Shea M, Morris H: The role of the C-terminal domain of human collagenase-3 (MMP-13) in the activation of procollagenase-3, substrate specificity, and tissue inhibitor of metalloproteinase interaction. J Biol Chem. 1997, 272 (12): 17124-17131.View Article
- Uria JA, Stahle-Backdahl M, Seiki M, Fueyo A, Lopez-Otin C: Regulation of collagenase-3 expression in human breast carcinomas is mediated by stromal-epithelial cell interactions. Cancer Res. 1997, 57: 4882-4888.PubMed
- Carzola M, Hernandez L, Nadal A, Boalbin M, Vizoso F: Collagenase- overexpression is associated with advanced local invasion in human squameous cell carcinomas of the larynx. J pathol. 1998, 186: 144-150.View Article
- Johnson N, Airola K, Grenman R, Kariniem AL, Saarialho-kere U, Kahari VM: Expression of collagenase-3 (matrix metalloproteinase-13) in squamous cell carcinomas of the head and neck. Am J Pathol. 1997, 151: 499-508.
- Johansson N, Vaalamo M, Grenman S, Hietanen S, Klemi P, Saarialho-kere U, Kahari VM: Collagenase-3 (MMP-13) is expressed by tumor cells in invasive vulvar squamous cell carcinomas. Am J Pathol. 1999, 154: 469-480.PubMed CentralView ArticlePubMed
- Uria JA, Jimenez MG, Balbin M, Freije JMP, Lopez-Otin C: Differential effects of TGF-β on collagenase-3 expression by human fibroblasts. J Biol Chem. 1998, 273: 9769-9777.View ArticlePubMed
- Fong Y, Dutton CM, Chass , Garamszegi N, Sim FH, Scully SP: Absence of a correlation between the presence of a single nucleotide polymorphism in the matrix metalloproteinase 1 promoter and outcome in patients of chondrosarcoma. Clin Cancer Res. 2004, 10 (21): 7329-7334.View ArticlePubMed
- Stahle-Backdahl M, Sandsted B, Bruce K, Lindahl A, Jimenez MG, Vega JA, Topez-Otin C: Collagenase-3 (MMP-13) is expressed during human fetal ossification and re-expressed in postnatal bone remodeling and in rheumatoid arthritis. Lab Invest. 1997, 76: 717-728.PubMed
- Johansson N, Saarialho-kere U, Airola K, Herva R, Nissinen L, Westermarck J, Vuorio E: Collagenase-3 (MMP-13) is expressed by hypertrophic chondrocytes, periosteal cells, and osteoblasts during human fetal bone development. Dev Dyn. 1997, 208 (3): 387-397.View ArticlePubMed
- Mitchell PG, Magna HA, Reeves LM, Lopresti-Morrow LL, Yocum SA, Rosner PJ, eoghegan KF, Hamber JE: Colning, expression and type II collagenolytic activity of matrix metalloproteinase-13 from human osteoarthitic cartilage. J Clin Invest. 1996, 97: 761-768.PubMed CentralView ArticlePubMed
- Billinghurst RC, Dahlberg L, Ionescu M, Reiner A, Bourne R, Rorubeck C, Mitchell P, Hambor J, Diekmann O, Tschesche H: Enhanced cleavage of type II collagen by collagenases in osteoarthritic articular cartilage. J Clin Invest. 1997, 99: 1534-1545.PubMed CentralView ArticlePubMed
- World Health Organization: Classification of Tumors. Pathology and Genetics. Tumors of Soft Tissue and Bone. Cartilage tumors. Edited by: Fletcher CDM, Unni KK, Mertens F. 2002, IARC press, Lyon, France, 234-257.
- Hsu SM, Raine L, Fanger H: Use of avidin-biotin-peroxidase complex (ABC) in immunoperoxidase techniques: A comparison between ABC and unlabeled antibody (PAP) procedures. J Histochem Cytochem. 1981, 29: 577-580.View ArticlePubMed
- Svejaard A, Jersild C, Stauf-Nielson K, Bodmr WF: HLA antigens and disease. Statistical and genetical considerations. Tissue Antigens. 1974, 4: 95-105.View Article
- Moses MA, Wiederschain D, Loughlin KP: Increased incidence of matrix metalloproteinases in urine of cancer patients. Cancer Res. 1998, 58: 1395-1399.PubMed
- Leeman MF, Mckay JA, Murray GI: Matrix metalloproteinase-13 activity is associated with poor prognosis in colorectal cancer. J Clin Pathol. 2002, 55: 758-762.PubMed CentralView ArticlePubMed
- Walker RA, Wooley DE: Immunolocation studies of matrix metalloproteinases-1, -2 and -3 in human melanoma. Virchows Arch. 1999, 435: 574-579.View ArticlePubMed
- Lindy O, Konttinen YT, Sorsa T, Ding Y, Santavirta S: MMP-13 (collagenase-3) in human rheumatoid synovium. Arthritis Rheum. 1997, 40: 1391-1399.View ArticlePubMed
- Loukopoulos P, Mungall BA, Straw RC, Jhornton JR, Robinson WF: Matrix metalloproteinase-2 and -9 involvement in canine tumors. Vet Pathol. 2003, 40: 382-294.View ArticlePubMed
- Borden PD, Solymar A, Swcharczuk B, Lindman P: Cytokine controlof interstitialcollagenase and collagenase-3 gene expression in human chondrocytes. J Biol Chem. 1996, 271: 23577-23581.View ArticlePubMed
- Uria JA, Balbin M, Lopez JM, Alvarez J: Collagenase-3 (MMP-13) expression in chondrosarcoma cells and its regulation by basic fibroblast growth factor. Am J Pathol. 1998, 153: 91-101.PubMed CentralView ArticlePubMed
- Mengshol JA, Vincenti MP, Brinckerhoff CE: IL-1 induces collagenase-3 (MMP-13) promoter activity is stably trasfected chondrocytic cells: requirement for Rumx-2 and activation by p38 MAPK and JNK pathways. Nucleic Acid Res. 2001, 21: 4361-4372.View Article
- Elliott S, Hays E, Mayor M, Sporn M, Vincenti M: The triterpenoid CDDO inhibits expression of matrix metalloproteinase-1, matrix metalloproteinase-13 and Bcl-3 in human chondrocytes. Arthritis Res Ther. 2003, 5: R285-R291.PubMed CentralView ArticlePubMed
- Liacini A, Sylvester J, Li WQ, Zafarullah M: Mithramycin downregulates proinflammatory cytokine-induced matrix metalloproteinase gene expression in articular chondrocytes. Arthritis Res Ther. 2005, 7 (4): 777-783.View Article
- Heppner KJ, Matrisian LM, Jensen RA, Rodgers WH: Expression of most matrix metalloproteinase family members in breast cancer represents a tumor-induced host response. Am J Pathol. 1996, 149: 273-282.PubMed CentralPubMed
- Airola K, Johansson N, Kariniemi AL, Kahari VM, Saarialho-kere UK: Human collagenase-3 is expressed in malignant squamous epithelium of the skin. J Invest Dermatol. 1997, 109: 225-231.View ArticlePubMed
- Steller-Stevenson WG, Hewitt R, Corcoran M: Matrix metalloproteinases and tumor invasion: from correlation and causality to the clinic. Semin cancer Biol. 1996, 7: 147-154.View Article
- Roughly PJ: Articular cartilage and changes in arthritis: non-collagenous proteins and proteoglycans in the extracellular matrix of cartilage. Arthritis Res. 2001, 3: 342-347.View Article
- Cowell S, Knauper V, Stewart ML: Induction of matrix metalloproteinase activation cascades based on membrane- type I matrix metalloproteinase: associated activation of gelatinase a, gelatinase b and collagenase-3. Biochem J. 1998, 331: 453-458.PubMed CentralView ArticlePubMed
- Bikfalvi A, Klein S, Pintucci G, Rifkin DB: Biological roles of fibroblast growth factor-2. Endocr Rev. 1997, 18: 26-45.PubMed
- Lobb R, Sasse J, Sullivan R, Shing Y, D'Amore P, Jacobs J, Klags-brun M: Purification and characterization of heparin binding endothelial cell growth factors. J Biol Chem. 1986, 261: 1924-1928.PubMed
- Jaye M, Schlessinger J, Dionne C: Fibroblast growth factor receptors for acidic and basic fibroblast growth factor. Biochem Biophys Acta. 1992, 1135: 185-189.View ArticlePubMed
- Brien EW, Mirra JM, Kerr R: Benign and malignant cartilage tumors of bone and joint-their anatomic and theoretical basis with an emphasis on radiology. Pathology and clinical biology-1. The intramedullary cartilage tumors (Review). Skeletal Radiology. 1997, 26: 325-353.View ArticlePubMed
- Yamaguchi T, Toguchida J, Wadayama B, Kanoe H: Loss of heterzygosity and tumor suppressor gene mutations in chondrosarcomas. Anticancer Res. 1996, 16 (4A): 2009-2015.PubMed
- Scully SP, Berend KR, Qi WN, Harrelson JM: Collagenase specificity in chondrosarcoma metastasis. Braz J Med Biol Res. 1999, 32 (7): 885-889.View ArticlePubMed
- Ueda Y, Oda Y, Tsuchiya H, Tomita K, Nakanishi I: Immunohistological study on collagenous proteins of benign and malignant human cartilaginous tumors of bone. Virchows Arch A Pathol Anat Histopathol. 1990, 417 (4): 291-297.View ArticlePubMed
- Aigner T, Dertinger S, Vornehm SI, Dudhia J: Phenotypic diversity of neoplastic chondrocytes and extracellular matrix gene expression in cartilaginous neoplasms. Am J Path. 1997, 150: 2133-2141.PubMed CentralPubMed
- Reynolds JJ: Collagenases and tissue inhibitor of metalloproteinases: A functional balance in tissue degradation. Oral Dis. 1996, 2: 70-76.View ArticlePubMed
- Lafleur Marc, Drew Angela, de Sousa Emma, Blick Tony, Bills Margaret, Walker Emma, Williams Elizabeth, Waltham Mark, Thompson Erik: Upregulation of matrix metalloproteinases (MMPs) in breast cancer xenografts: A major induction of stromal MMP-13. Int J Cancer. 2005, 114 (4): 544-554.View ArticlePubMed
- McMillan JI, Weeks R, West JW, Bursten S, Rice GC, Lovett DH: Pharmacological inhibition of gelatinase B induction and tumor cell invasion. Int J Cancer. 1996, 67: 523-531.View ArticlePubMed
- Brown PD: Synthetic inhibitors of matrix metalloproteinases. Matrix metalloproteinases. Edited by: Parks WC, Mecham RP. 1998, Sandieqo : Academic Press, 243-256.View Article
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