胞囊复合体成分3-like 1过表达可自发诱导细胞凋亡。

IF 1.3 4区 医学 Q4 MEDICINE, RESEARCH & EXPERIMENTAL
Shunichi Matsumoto, Junichi Okada, Eijiro Yamada, Tsugumichi Saito, Kazuya Okada, Takuya Watanabe, Yasuyo Nakajima, Atsushi Ozawa, Shuichi Okada, Masanobu Yamada
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引用次数: 2

摘要

外囊复合物成分3-like 1 (EXOC3L1)调节胰岛素分泌,普遍存在于心、肺、肝、脾、肾、肌肉、小脑、垂体、肾上腺和胰岛中。其推断的氨基酸序列与Sec6具有31%的同源性和53%的相似性,因此它们被认为是同工异构体。由于Sec6通过HSP27抑制细胞凋亡,我们研究了EXOC3L1表达在细胞凋亡中的作用。我们发现EXOC3L1在中国仓鼠卵巢细胞中过表达显著减少培养细胞数量。与对照组相比,它还显著增加了凋亡DNA阶梯、caspase 3活性和caspase 3的裂解。因此,尽管Sec6通过增加HSP27磷酸化来减少细胞凋亡,但单独过表达的EXOC3L1可以在没有凋亡刺激剂或诱导剂的情况下自发诱导细胞凋亡。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Overexpressed exocyst complex component 3-like 1 spontaneously induces apoptosis.

Exocyst complex component 3-like 1 (EXOC3L1), which regulates insulin secretion, is ubiquitously present in heart, lung, liver, spleen, kidney, muscle, cerebellum, pituitary, adrenal grand, and pancreatic islets. Its deduced amino acid sequence has 31% identity and 53% similarity with Sec6, so they are considered isoforms. Since Sec6 suppresses apoptosis via HSP27, we investigated the involvement of EXOC3L1 expression in apoptosis. We found that overexpressed EXOC3L1 in Chinese hamster ovary cells significantly reduced cultured cell numbers. It also significantly increased apoptotic DNA ladder, caspase 3 activity, and cleavage of caspase 3 compared with the control. Thus, although Sec6 reduces apoptosis by increasing HSP27 phosphorylation, overexpressed EXOC3L1 alone can spontaneously induce apoptosis without apoptotic stimulators or inducers.

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来源期刊
Biomedical Research-tokyo
Biomedical Research-tokyo 医学-医学:研究与实验
CiteScore
2.40
自引率
0.00%
发文量
19
审稿时长
>12 weeks
期刊介绍: Biomedical Research is peer-reviewed International Research Journal . It was first launched in 1990 as a biannual English Journal and later became triannual. From 2008 it is published in Jan-Apr/ May-Aug/ Sep-Dec..
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