Epidermal differentiation does not involve the pro-apoptotic executioner caspases, but is associated with caspase-14 induction and processing
نویسندگان
چکیده
منابع مشابه
Green tea polyphenol-induced epidermal keratinocyte differentiation is associated with coordinated expression of p57/KIP2 and caspase 14.
Epigallocatechin-3-gallate (EGCG), the most abundant polyphenol in green tea, exerts chemopreventive effects by selectively inducing apoptosis in tumor cells. In contrast, EGCG accelerates terminal differentiation in normal human epidermal keratinocytes (NHEK) mediated partially by up-regulation of p57/KIP2, a cyclin-dependent kinase inhibitor that confers growth arrest and differentiation. How...
متن کاملRole of the Executioner Caspases during Lens
The notion that the cell death machinery is utilized during lens organelle degradation is supported by the observation that well characterized apoptotic substrates are cleaved during this process. Here, we test directly the role of executioner caspases (caspase-3, -6, and -7) in fiber cell differentiation. The distribution of mRNA, protein, and enzymatic activity for each caspase was determined...
متن کاملNitric oxide inhibits caspase activation and apoptotic morphology but does not rescue neuronal death.
Nitric oxide (NO) has been shown to inhibit apoptotic cell death by S-nitrosylation of the catalytic-site cysteine residue of caspases. However, it is not clear whether in neurons NO-mediated caspase inactivation leads to improved cell survival. To address this issue, we studied the effect of NO donors on caspase activity and cell survival in cortical neuronal culture treated with the apoptosis...
متن کاملNew Views on the Misconstrued: Executioner Caspases and Their Diverse Non-apoptotic Roles
Initially characterized for their roles in apoptosis, executioner caspases have emerged as important regulators of an array of cellular activities. This is especially true in the nervous system, where sublethal caspase activity has been implicated in axonal pathfinding and branching, axonal degeneration, dendrite pruning, regeneration, long-term depression, and metaplasticity. Here we examine t...
متن کاملTerminal differentiation of human keratinocytes and stratum corneum formation is associated with caspase-14 activation.
Programmed cell death of epidermal keratinocytes (KC) results in the formation of cornified cells, which constitute the outermost skin layer, the stratum corneum. Here we show by reverse transcription-polymerase chain reaction, western blot, and immunohistochemistry that epidermal KC express caspase-14, a member of the caspase family of pro-apoptotic proteases, in a tissue-specific manner. Casp...
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: Cell Death & Differentiation
سال: 2000
ISSN: 1350-9047,1476-5403
DOI: 10.1038/sj.cdd.4400785