Shigella-induced apoptosis is dependent on caspase-1 which binds to IpaB
We report here that the Shigella invasion plasmid antigen (Ipa)B, which is sufficient to induce apoptosis in macrophages, binds to caspase (Casp)-1, but not to Casp-2 or Casp-3. Casp-1 is activated and its specific substrate interleukin-1beta is cleaved shortly after Shigella infection. Macrophages isolated from Casp-1 knock-out mice are not susceptible to Shigella-induced apoptosis, although they respond normally to other apoptotic stimuli. Shigella kills macrophages from casp-3, casp-11, and p53 knock-out mice as well as macrophages overexpressing Bcl-2. We propose that Shigella induces apoptosis by directly activating Casp-1 through IpaB, bypassing signal transduction events and caspases upstream of Casp-1. Taken together these data indicate that Shigella-induced apoptosis is distinct from other forms of apoptosis and seems uniquely dependent on Casp-1.
Medienart: |
Artikel |
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Erscheinungsjahr: |
1998 |
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Erschienen: |
1998 |
Enthalten in: |
Zur Gesamtaufnahme - volume:273 |
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Enthalten in: |
The Journal of biological chemistry - 273(1998), 49 vom: 04. Dez., Seite 32895-900 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Hilbi, H [VerfasserIn] |
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Anmerkungen: |
Date Completed 08.01.1999 Date Revised 09.02.2021 published: Print Citation Status MEDLINE |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM09767799X |
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245 | 1 | 0 | |a Shigella-induced apoptosis is dependent on caspase-1 which binds to IpaB |
264 | 1 | |c 1998 | |
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500 | |a Date Completed 08.01.1999 | ||
500 | |a Date Revised 09.02.2021 | ||
500 | |a published: Print | ||
500 | |a Citation Status MEDLINE | ||
520 | |a We report here that the Shigella invasion plasmid antigen (Ipa)B, which is sufficient to induce apoptosis in macrophages, binds to caspase (Casp)-1, but not to Casp-2 or Casp-3. Casp-1 is activated and its specific substrate interleukin-1beta is cleaved shortly after Shigella infection. Macrophages isolated from Casp-1 knock-out mice are not susceptible to Shigella-induced apoptosis, although they respond normally to other apoptotic stimuli. Shigella kills macrophages from casp-3, casp-11, and p53 knock-out mice as well as macrophages overexpressing Bcl-2. We propose that Shigella induces apoptosis by directly activating Casp-1 through IpaB, bypassing signal transduction events and caspases upstream of Casp-1. Taken together these data indicate that Shigella-induced apoptosis is distinct from other forms of apoptosis and seems uniquely dependent on Casp-1 | ||
650 | 4 | |a Journal Article | |
650 | 4 | |a Research Support, Non-U.S. Gov't | |
650 | 4 | |a Research Support, U.S. Gov't, P.H.S. | |
650 | 7 | |a Bacterial Proteins |2 NLM | |
650 | 7 | |a Proto-Oncogene Proteins c-bcl-2 |2 NLM | |
650 | 7 | |a Tumor Suppressor Protein p53 |2 NLM | |
650 | 7 | |a ipaB protein, Shigella |2 NLM | |
650 | 7 | |a 127384-62-7 |2 NLM | |
650 | 7 | |a Caspase 1 |2 NLM | |
650 | 7 | |a EC 3.4.22.36 |2 NLM | |
700 | 1 | |a Moss, J E |e verfasserin |4 aut | |
700 | 1 | |a Hersh, D |e verfasserin |4 aut | |
700 | 1 | |a Chen, Y |e verfasserin |4 aut | |
700 | 1 | |a Arondel, J |e verfasserin |4 aut | |
700 | 1 | |a Banerjee, S |e verfasserin |4 aut | |
700 | 1 | |a Flavell, R A |e verfasserin |4 aut | |
700 | 1 | |a Yuan, J |e verfasserin |4 aut | |
700 | 1 | |a Sansonetti, P J |e verfasserin |4 aut | |
700 | 1 | |a Zychlinsky, A |e verfasserin |4 aut | |
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