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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Increased class Ib antigen display on TAP-2 mutant cells by a mitochondrial function inhibitor.

Class I histocompatibility antigen display is defective in the RMA-S mutant cell line due to a mutation in the Tap-2 gene, which encodes a peptide transporter. Incubation of RMA-S cells with oligomycin, an inhibitor of mitochondrial ATPase, strongly increased lysis by cytotoxic T lymphocytes (CTL) specific for the class Ib antigen H2-M3, and lysis by Qa-1b-specific CTL was restored. Oligomycin did not affect normal class I display on RMA cells. Treatment of RMA-S cells with other inhibitors of mitochondrial function failed to increase lysis by anti-H2-M3 or Qa-1b CTL. Lysis by allogenic CTL specific for H-2b antigens was either not enhanced or only weakly increased, depending upon the H-2 haplotype of the alloreactive effector cells used.[1]

References

  1. Increased class Ib antigen display on TAP-2 mutant cells by a mitochondrial function inhibitor. Hermel, E., Grigorenko, E., Aldrich, C.J. Cell. Immunol. (1997) [Pubmed]
 
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