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Transfer of Fas (CD95) protein from the cell surface to the surface of polystyrene beads coated with anti-Fas antibody clone CH-11

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Mouse monoclonal anti-Fas (CD95) antibody clone CH-11 has been widely used in research on apoptosis. CH-11 has the ability to bind to Fas protein on cell surface and induce apoptosis. Here, we used polystyrene beads coated with CH-11 to investigate the role of lipid rafts in Fas-mediated apoptosis in SKW6.4 cells. Unexpectedly, by treatment of the cells with CH-11-coated beads Fas protein was detached from cell surface and transferred to the surface of CH-11-coated beads. Western blot analysis showed that Fas protein containing both extracellular and intracellular domains was attached to the beads. Fas protein was not transferred from the cells to the surface of the beads coated with other anti-Fas antibodies or Fas ligand. Similar phenomenon was observed in Jurkat T cells. Furthermore, CH-11-induced apoptosis was suppressed by pretreatment with CH-11-coated beads in Jurkat cells. These results suggest that CH-11 might possess distinct properties on Fas protein compared with other anti-Fas antibodies or Fas ligand, and also suggest that caution should be needed to use polystyrene beads coated with antibodies such as CH-11.

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Rodrigo Franco, John A. Cidlowski (2012)
Glutathione Efflux and Cell Death. Antioxidants & Redox Signaling, 17(12), 1694.

Supporting Agencies

This work was supported in part by “High-Tech Research Center” Project for Private Universities, matching fund subsidy from Ministry of Education, Culture, Sports, Science and Technology (2007-2011).
H. Sawai, Osaka Dental University
Department of Internal Medicine, Osaka Dental University

How to Cite



Transfer of Fas (CD95) protein from the cell surface to the surface of polystyrene beads coated with anti-Fas antibody clone CH-11. (2010). European Journal of Histochemistry, 54(1), e8. https://doi.org/10.4081/ejh.2010.e8