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硫化氢对心肌成纤维细胞增殖的抑制作用及机制研究
Δ
刘露露 1, 2* ,秦 燕 ,孟国梁 ,顾锦华 ,张 琳 ,包小燕 (1.南通大学附属妇幼保健院/南通市儿童医院药
3 #
1, 2
2
1, 2
1
学部,江苏 南通 226007;2.南通大学药学院,江苏 南通 226001;3.南通大学附属妇幼保健院/南通市儿童医
院心电图室,江苏 南通 226007)
中图分类号 R965 文献标志码 A 文章编号 1001-0408(2023)04-0438-06
DOI 10.6039/j.issn.1001-0408.2023.04.11
摘 要 目的 研究硫化氢(H2S)对心肌成纤维细胞增殖的抑制作用及机制。方法 取新生SD雄性大鼠心脏,采用差速离心法分
离心肌成纤维细胞。以硫氢化钠作为H2S的供体,检测H2S对血管紧张素Ⅱ(Ang Ⅱ)诱导心肌成纤维细胞增殖、羟脯氨酸含量以
及去乙酰化酶3(SIRT3)蛋白表达的影响。用干扰RNA技术下调SIRT3表达后,观察H2S对Ang Ⅱ诱导的心肌成纤维细胞增殖、
羟脯氨酸的含量以及Ⅰ型胶原(Col Ⅰ)、Ⅲ型胶原(Col Ⅲ)和视神经萎缩蛋白1(OPA1)表达的影响。结果 H2S可抑制Ang Ⅱ诱
导的心肌成纤维细胞增殖,降低羟脯氨酸含量,增强SIRT3蛋白表达(P<0.05)。用干扰RNA技术下调SIRT3表达后,H2S对Ang
Ⅱ诱导的心肌成纤维细胞增殖抑制作用、羟脯氨酸含量降低作用均被抑制,且H2S降低Col Ⅰ、Col Ⅲ表达的作用和增强OPA1表
达的作用也明显减弱。结论 H2S依赖增加SIRT3表达来抑制Ang Ⅱ诱导的心肌成纤维细胞增殖。
关键词 硫化氢;心肌成纤维细胞;血管紧张素Ⅱ;去乙酰化酶3
Study on inhibitory effect and mechanism of hydrogen sulfide on the proliferation of cardiac fibroblasts
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LIU Lulu ,QIN Yan ,MENG Guoliang ,GU Jinhua ,ZHANG Lin ,BAO Xiaoyan(1. Dept. of Pharmacy,
1, 2
2
the Affiliated Maternity & Child Health Care Hospital of Nantong University/Nantong Children’s Hospital,
Jiangsu Nantong 226007, China; 2. School of Pharmacy, Nantong University, Jiangsu Nantong 226001, China;
3. Electrocardiographic Room, the Affiliated Maternity & Child Health Care Hospital of Nantong University/
Nantong Children’s Hospital, Jiangsu Nantong 226007, China)
ABSTRACT OBJECTIVE To investigate the inhibitory effect and the possible mechanism of hydrogen sulfide (H2S) on the
proliferation of cardiac fibroblasts. METHODS The heart of neonatal SD rats was collected, and cardiac fibroblasts were separated
with differential centrifugation. Using sodium hydrosulfide as the donor of H2S, the effects of H2S on the proliferation of cardiac
fibroblasts induced by angiotensin Ⅱ (Ang Ⅱ), hydroxyproline content and the expression of sirtuin 3 (SIRT3) protein were
detected. After SIRT3 knockdown with siRNA technology, the effects of H2S on the proliferation of cardiac fibroblasts induced by
Ang Ⅱ, hydroxyproline content, the expressions of collagen Ⅰ (Col Ⅰ), collagen Ⅲ (Col Ⅲ ) and optic atrophy protein 1
(OPA1) were detected. RESULTS H2S could inhibit the proliferation of Ang Ⅱ-induced cardiac fibroblasts, reduce the content of
hydroxyproline and increase the expression of SIRT3 (P<0.05). After down-regulating the expression of SIRT3 with siRNA
technology, the inhibition of H2S on the proliferation of Ang Ⅱ-induced cardiac fibroblasts and the reduction of hydroxyproline
content were both inhibited, and the effect of H2S on reducing the expression of Col Ⅰ and Col Ⅲ and enhancing the expression of
OPA1 was also significantly weakened. CONCLUSIONS H2S inhibits the proliferation of Ang Ⅱ -induced cardiac fibroblasts
through increasing the expression of SIRT3.
KEYWORDS hydrogen sulfide; cardiac fibroblasts; angiotensin Ⅱ; sirtuin 3
Δ 基金项目 江苏省333高层次人才培养工程[No.(2022)3-16-670
心肌纤维化是一种以心肌成纤维细胞基质蛋白沉
号];南通市科技计划(指导性)项目(No.JCZ20167);南通市卫生健康
积为主要特征的心肌病理改变 。当心肌缺血缺氧时,
[1]
委员会科研课题(No.QA2020034)
*第一作者 主管药师,硕士。研究方向:临床药学、药理学。 心肌成纤维细胞可过度激活,进而造成心脏损伤 。虽
[2]
E-mail:guiqulaixi214@163.com
然心肌成纤维细胞是心脏中数目最多的细胞,但在研究
# 通信作者 主治医师。研究方向:心血管疾病的临床治疗。
E-mail:lulu920317@163.com 心脏生理功能和疾病机制过程中,对心肌成纤维细胞研
· 438 · China Pharmacy 2023 Vol. 34 No. 4 中国药房 2023年第34卷第4期