Granzyme A is an interleukin 1 beta-converting enzyme.

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Granzyme A is an interleukin 1 beta-converting enzyme

Apoptosis is critically dependent on the presence of the ced-3 gene in Caenorhabditis elegans, which encodes a protein homologous to the mammalian interleukin (IL)-1 beta-converting enzyme (ICE). Overexpression of ICE or ced-3 promotes apoptosis. Cytotoxic T lymphocyte-mediated rapid apoptosis is induced by the proteases granzyme A and B. ICE and granzyme B share the rare substrate site of aspa...

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Activation of an interleukin 1 converting enzyme-dependent apoptosis pathway by granzyme B.

Cytotoxic T lymphocytes (CTL) can induce apoptosis through a granzyme B-based killing mechanism. Here we show that in cells undergoing apoptosis by granzyme B, both p45 pro-interleukin 1 beta converting enzyme (ICE) and pro-CPP32 are processed. Using ICE deficient (ICE -/-) mice, embryonic fibroblasts exhibit high levels of resistance to apoptosis by granzyme B or granzyme 3, while B lymphoblas...

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Expression of interleukin 1 beta and interleukin 1 beta converting enzyme by intestinal macrophages in health and inflammatory bowel disease.

BACKGROUND In the lipopolysaccharide (LPS) stimulated peripheral blood monocyte, the precursor form of interleukin 1 beta (IL-1 beta, 31 kD) is processed by IL-1 beta converting enzyme (ICE) to the mature, bioactive form (17 kD). IL-1 beta is a proinflammatory cytokine which is likely to have a role in the pathogenesis of inflammatory bowel disease (IBD). AIMS To investigate the expression an...

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Cleavage of retinoblastoma protein during apoptosis: an interleukin 1 beta-converting enzyme-like protease as candidate.

We had found that in an early stage of DNA damage-induced, p53-independent apoptosis, retinoblastoma (RB) protein is hypophosphorylated to a p115 form by an activated serine/threonine phosphatase. Here, we report that accompanying the internucleosomal fragmentation of DNA, the newly formed p115/hypo/RB was immediately cleaved into at least two fragments, p68 and p48. The RB cleavage activity po...

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Functional role of interleukin 1 beta (IL-1 beta) in IL-1 beta- converting enzyme-mediated apoptosis

Prointerleukin-1 beta (pro-IL-1 beta) is the only known physiologic substrate of the interleukin-1 beta (IL-1 beta)-converting enzyme (ICE), the founding member of the ICE/ced-3 cell death gene family. Since secreted mature IL-1 beta has been detected after apoptosis, we investigated whether this cytokine, when produced endogenously, plays a role in cell death. We found that hypoxia-induced apo...

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ژورنال

عنوان ژورنال: Journal of Experimental Medicine

سال: 1995

ISSN: 0022-1007,1540-9538

DOI: 10.1084/jem.181.5.1917