Dear Flow users, I am new to the flowcytometry technique. I intend using it for the detection of apoptosis in mouse embryo fibroblasts. I tried some control and staurosporine treated cells in the FACSCalibur after staining with PI. Contrary to my expectation the DNA histograms looked different. There was a peak at hypodiploid position in the all the samples measured , even in control ones. I analysed the dot plots and i could see the difference in apoptotic and live cell population clearly. So i tried adjusting all the instrument settings possible but i could not get rid of it. Does someone have this experience ? If any explanation or suggestion to overcome this problem is appreciated. As no people around me could help me out i am in need of some answer from the group. Thanks in advance. Sincerely yours, Manickam Janakiraman Bayerische Julius Maximilians University of Wuerzburg, Institute for Medical Radiology and cell Research,(MSZ), Versbacher Str. 5, D-97078 Wuerzburg, Germany Phone: (49)-931-201-3838 (Lab) (49)-931-201-8331 (Res) Fax: (49)-931-201-3835 email: manickamj@mail.uni-wuerzburg.de
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