Necessity of interleukin-1beta converting enzyme cascade in taxotere-initiated death signaling

European Journal of Pharmacology
A SuzukiM Kato

Abstract

Taxotere is a new type chemotherapeutic agent which targets tubulin. In the present study, we investigated the molecular machinery of taxotere-initiated death signaling. Taxotere induced cell death in mouse fibroblast L929 cells. Cell morphological analysis revealed that this effect showed characteristics of apoptotic and necrotic cell death. To further examine taxotere-induced cell death, we investigated the direct involvement of caspase. When cells were pretreated with the synthesized tetrapeptide inhibitor of caspase, YVAD-CHO (Ac-Tyr-Val-Ala-Asp-aldehyde: inhibitor of interleukin-1beta converting enzyme (ICE) subfamily) or DEVD-CHO (Ac-Asp-Glu-Val-Asp-aldehyde: inhibitor of CPP32 subfamily), taxotere-induced cell death was prevented. In addition, time course experiments demonstrated that activation of the ICE subfamily preceded activation of the CPP32 subfamily in taxotere-initiated death signaling, suggesting the direct involvement of the ICE cascade in taxotere-initiated death signaling. On the basis of these results, we suggest that taxotere causes the initiation of ICE cascade in its death signaling pathway and that the down-stream site of taxotere-initiated death signaling is the same as that of other chemotherapeutic ...Continue Reading

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Citations

Jun 20, 2008·Journal of Huazhong University of Science and Technology. Medical Sciences = Hua Zhong Ke Ji Da Xue Xue Bao. Yi Xue Ying De Wen Ban = Huazhong Keji Daxue Xuebao. Yixue Yingdewen Ban·Jian ZhangShixin Chen
Mar 1, 2007·Expert Opinion on Drug Discovery·Nadine DarwicheHala Gali-Muhtasib
Sep 7, 2013·The Korean Journal of Internal Medicine·Sanjeev Kumar MauryaHari Shanker Shukla
Apr 20, 2006·American Journal of Physiology. Renal Physiology·Belda DursunCharles L Edelstein
Aug 10, 2000·Drugs & Aging·A M Comer, K L Goa
Dec 10, 2020·Journal for Immunotherapy of Cancer·Carolina TiraboschiDaniel Compagno
Oct 18, 2005·Molecular Cancer Therapeutics·David L MorseRobert J Gillies

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