Bcl-2 regulates a caspase-3/caspase-2 apoptotic cascade in cytosolic extracts
نویسندگان
چکیده
منابع مشابه
Bcl-2 regulates amplification of caspase activation by cytochrome c
Caspases, a family of specific proteases, have central roles in apoptosis [1]. Caspase activation in response to diverse apoptotic stimuli involves the relocalisation of cytochrome c from mitochondria to the cytoplasm where it stimulates the proteolytic processing of caspase precursors. Cytochrome c release is controlled by members of the Bcl-2 family of apoptosis regulators [2] [3]. The anti-a...
متن کاملChk1 Suppresses a Caspase-2 Apoptotic Response to DNA Damage that Bypasses p53, Bcl-2, and Caspase-3
Evasion of DNA damage-induced cell death, via mutation of the p53 tumor suppressor or overexpression of prosurvival Bcl-2 family proteins, is a key step toward malignant transformation and therapeutic resistance. We report that depletion or acute inhibition of checkpoint kinase 1 (Chk1) is sufficient to restore gamma-radiation-induced apoptosis in p53 mutant zebrafish embryos. Surprisingly, cas...
متن کاملBcl-2 regulates activation of apoptotic proteases in a cell-free system
BACKGROUND Apoptosis plays an important role in the normal development and homeostasis of metazoans. Aberrations in this process have been implicated in several major human diseases, but its molecular mechanism is poorly understood. In animals as diverse as humans and nematodes, the Bcl-2 oncoprotein prevents or delays apoptosis, whereas proteases of the interleukin-1beta-converting enzyme (ICE...
متن کاملThe Bcl-2-regulated apoptotic pathway.
Apoptosis (programmed cell death) is required for the removal of infected, damaged or unwanted cells and its disrupted regulation is implicated in cancer, autoimmunity and degenerative disorders. At the molecular level, multiple signaling pathways converge on a family of cysteine proteases (caspases), which when activated cause cellular destruction by cleaving a range of vital cellular substrat...
متن کاملApoptotic cytosol facilitates Bax translocation to mitochondria that involves cytosolic factor regulated by Bcl-2.
Proapoptotic members of the Bcl-2 family, including Bax, Bak, and Bid, directly trigger the mitochondrial release of apoptogenic cytochrome c and apoptosis-inducing factor into the cytoplasm. One of the crucial steps before Bax can exert its proapoptotic activity is translocation from the cytoplasm to the mitochondria, but the molecular mechanism of this translocation is not understood. To inve...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Oncogene
سال: 1999
ISSN: 0950-9232,1476-5594
DOI: 10.1038/sj.onc.1202490