CPP32 activation during dolichyl phosphate-induced apoptosis in U937 leukemia cells
In: FEBS Letters, Jg. 412 (1997-07-21), S. 153-156
Online
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Zugriff:
Treatment of U937 cells with dolichyl phosphate led to an increase in the activity of the ICE family protease CPP32, accompanied with cleavage of pre-CPP32 to generate p17. Peptide inhibitors YVAD-cmk and Z-Asp-CH2-DCB (specific to ICE) and DEVD-cho (specific to CPP32) blocked the dolichyl phosphate-induced apoptosis. The dolichyl phosphate-induced increase of CPP32 activity was inhibited by adenylate cyclase inhibitors, SQ 22536 and 2′,5′-dideoxyadenosine. Dolichyl phosphate caused a transient increase of intracellular cAMP concentration. The results suggest that modulation of cAMP synthesis due to the stimulation of adenylate cyclase by dolichyl phosphate plays a critical role in CPP32 activation and apoptosis.
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CPP32 activation during dolichyl phosphate-induced apoptosis in U937 leukemia cells
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Autor/in / Beteiligte Person: | Kano, Itsu ; Okubo, Tomoko ; Kano, Kazutaka ; Ozawa, Satoshi ; Oshima, Mieko ; Shioda, Masaki ; Yokoyama, Yoshiko ; Ushiyama, Keiko ; Yasugi, Etsuko ; Takemura, Mariko ; Namiki, Hideo ; Seyama, Yousuke ; Nagai, Fumiko ; Kubo, Hirotaka |
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Zeitschrift: | FEBS Letters, Jg. 412 (1997-07-21), S. 153-156 |
Veröffentlichung: | Wiley, 1997 |
Medientyp: | unknown |
ISSN: | 0014-5793 (print) |
DOI: | 10.1016/s0014-5793(97)00763-1 |
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