Title : Mechanism of beta 2-microglobulin-induced apoptosis in the K562 leukemia cell line, defective in major histocompatibility class 1.

Pub. Date : 2002 Sep-Oct

PMID : 12529972






2 Functional Relationships(s)
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1 MATERIALS AND METHODS: To understand the mechanism of beta 2m-induced apoptosis, we added purified human beta 2m to cultures of K562 human chronic myelocytic leukemia cells, detected apoptosis by DNA fragmentation and annexin V binding assays, measured mitochondrial membrane potential (delta psi m), and used Z-VAD-fmk, a general inhibitor of caspases, inhibitors of caspases-1 and-3, as well as Western blot analysis to detect activated caspases. benzyloxycarbonylvalyl-alanyl-aspartyl fluoromethyl ketone beta-2-microglobulin Homo sapiens
2 Treatment with the general caspase inhibitor Z-VAD-fmk, as well as the caspase-1 inhibitor YVAD-CHO, significantly blocked beta 2m-induced apoptosis. benzyloxycarbonylvalyl-alanyl-aspartyl fluoromethyl ketone beta-2-microglobulin Homo sapiens