Figure 7From: Modulation of insulin/IGFs pathways by sirtuin-7 inhibition in drug-induced chemoreistanceFITC-conjugated Insulin uptake by MCF-7 following Sirt7 inhibition. A) Representative image for FITC-conjugated Insulin uptake by MCF-7 transfected with either mock or Sirt7 siRNA vectors. Stably transfectcted MCF-7 cells were cultured in chamber slides in 0.1% FBS containing medium overnight. Cells were then incubated with FITC-conjugated Insulin (0 and 1000 nM) for 2Â hours and then washed, fixed and analyzed by Leica confocal microscope. Nucleus was counterstained with DAPI (blue) while cytoplasm was counterstained with Rhodamine Phalloidin (red); B) Insulin uptake by MCF-7 Mock transfected and incubated with different FITC-labeled insulin for different time intervals; and C) Insulin uptake by MCF-7 cells transfected with Sirt7 siRNA.Back to article page