《中国畜牧兽医》 ›› 2018, Vol. 45 ›› Issue (12): 3402-3407.doi: 10.16431/j.cnki.1671-7236.2018.12.012

• 生理生化 • 上一篇    下一篇

硫化氢的生成及其在细胞凋亡和炎性反应中的作用

张成玉, 王月影, 许春梅, 朱河水, 钟凯, 李和平   

  1. 河南农业大学, 农业部动物生化与营养重点实验室, 郑州 450046
  • 收稿日期:2018-05-29 出版日期:2018-12-20 发布日期:2018-12-21
  • 通讯作者: 李和平 E-mail:liheping1972@126.com
  • 作者简介:张成玉(1992-),男,河南封丘人,硕士,研究方向:动物生长发育与免疫调控,E-mail:2859229373@qq.com
  • 基金资助:

    国家重点研发计划(2016YFD0500503);国家自然科学基金(31470120);河南省基础与前沿技术研究计划(132300410002);河南省高等学校重点科研项目(17A230016、18A230009)

Generation of H2S and Its Role in Apoptosis and Inflammatory Response

ZHANG Chengyu, WANG Yueying, XU Chunmei, ZHU Heshui, ZHONG Kai, LI Heping   

  1. Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou 450046, China
  • Received:2018-05-29 Online:2018-12-20 Published:2018-12-21

摘要:

硫化氢(H2S)是一种无色具有臭味的气体,不仅是畜禽舍内的一种有毒有害物质,而且近年来发现H2S是继NO、CO之后第3种气体信号分子。H2S在胃肠中可以通过沙门氏菌、幽门螺旋杆菌等对含硫有机物及硫酸盐分解和还原产生,也可以通过胱硫醚-β-合成酶(CBS)、胱硫醚-γ-裂解酶(CSE)、半胱氨酸转移酶(CAT)与3-巯基丙酮酸硫转移酶(3-MST)等催化L-半胱氨酸等含硫氨基酸产生。H2S具有多种生理病理学作用,可通过阻断细胞色素C氧化酶而抑制线粒体呼吸(高浓度情况下),造成细胞凋亡,同时也能下调BCL-2及NFB等抗凋亡基因表达,促进细胞凋亡;可通过调节Caspase3而抑制细胞凋亡(低浓度情况下),还可以与NF-κB的P65发生巯基化反应促进下游抗凋亡基因表达而发挥抗凋亡作用。高浓度的H2S可以上调NFBP38、ERKE1/2等基因表达,加重炎症反应;低浓度H2S可以通过抑制NF-κB信号通路发挥抗炎作用。作者通过综述H2S气体的生成及其在细胞凋亡和炎性反应中的双重作用,为深入了解H2S在疾病发展过程中的生理、病理机制提供参考。

关键词: 硫化氢(H2S); 生成; 细胞凋亡; 炎性反应

Abstract:

H2S is a colorless and odorous gas,it is not only a toxic and harmful substance in livestock houses,but also is the third gas signal molecule after NO and CO.H2S can be produced through decompositing and reducting of sulfur-containing organic compounds and sulfates by Salmonella,Helicobacter pylori,etc.in the gastrointestinal tract,and also through catalyzing sulfur-containing amino acid such as L-cysteine by cystathionine-β-synthase (CBS),cystathionine-γ-lyase (CSE),cysteine transferase (CAT) and 3-mercapto-pyruvate thiotransferase (3-MST).H2S has a variety of physiological and pathological effects.It can inhibit mitochondrial respiration and blocks apoptosis through blocking cytochrome C (at high content),while also down-regulates anti-apoptotic genes such as BCL-2 and NFB to promote apoptosis.It can inhibit apoptosis by regulating Caspase3 (at low content),and also can play a thiolation reaction with NF-κB p65 to promote the expression of downstream anti-apoptotic genes and play an anti-apoptotic effect.High concentration of H2S could up-regulate the expression of NFB,P38 and ERKE1/2 genes to promote inflammatory responses,low concentrations of H2S could exert anti-inflammatory effects through inhibiting NF-κB signaling pathway.Summarizing the formation of H2S gas and its dual roles in apoptosis and inflammatory response,this paper provides a reference for the understanding of the physiopathological mechanism of H2S in the process of disease development.

Key words: H2S; generation; cell apoptosis; inflammatory reaction

中图分类号: