1.中山大学附属第六医院心血管内科//广州市黄埔区中六生物医学创新研究院//国家卫生健康委员会辅助循环重点实验室[中山大学],广东 广州 510655
2.中山大学附属第三医院心血管内科,广东 广州 510630
3.中山大学附属第一医院心血管内科,广东 广州 510080
李庆朗,第一作者,研究方向:冠心病与心力衰竭,E-mail:liqlang@mail.sysu.edu.cn
收稿:2026-02-11,
修回:2026-04-04,
录用:2026-04-07,
纸质出版:2026-05-20
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李庆朗,谢冬梅,高修仁.肥大细胞激活促进酒精性心肌病的心肌重构[J].中山大学学报(医学科学版),2026,47(03):451-458.
LI Qinglang,XIE Dongmei,GAO Xiuren.Mast Cell Activation Promotes Myocardial Remodeling in Alcoholic Cardiomyopathy[J].Journal of Sun Yat-sen University(Medical Sciences),2026,47(03):451-458.
李庆朗,谢冬梅,高修仁.肥大细胞激活促进酒精性心肌病的心肌重构[J].中山大学学报(医学科学版),2026,47(03):451-458. DOI: 10.11714/jsysu.med.YX20260025.
LI Qinglang,XIE Dongmei,GAO Xiuren.Mast Cell Activation Promotes Myocardial Remodeling in Alcoholic Cardiomyopathy[J].Journal of Sun Yat-sen University(Medical Sciences),2026,47(03):451-458. DOI: 10.11714/jsysu.med.YX20260025.
目的
2
探讨肥大细胞(MC)在酒精性心肌病(ACM)中的作用及相关机制。
方法
2
采用酒精液体饲料喂养C57BL/6小鼠建立酒精性心肌病模型,部分模型小鼠给予肥大细胞稳定剂色甘酸钠干预。通过超声心动图、组织染色和Western blot评估心功能、心肌重构及相关蛋白表达。体外实验使用肥大细胞颗粒(MCGs)和/或酒精刺激乳大鼠心肌细胞,并应用通路抑制剂探讨其机制。
结果
2
长期酒精喂养可导致小鼠出现显著的心脏功能障碍,并激活肥大细胞,同时心肌组织中糜蛋白酶(chymase)、NOX2、NOX4及凋亡相关蛋白c-Caspase3表达升高(
P
<0.05)。色甘酸钠干预可改善心功能,抑制肥大细胞激活,并降低上述蛋白表达。体外实验显示,MCGs或酒精单独处理均可上调心肌细胞c-Caspase3、NOX2、NOX4和磷酸化PKCβ1(p-PKCβ1)的表达,两者联合刺激具有协同效应。蛋白酶激活受体2(PAR2)抑制剂可下调MCGs诱导的上述蛋白表达。PKCβ1抑制剂亦能抑制MCGs诱导的c-Caspase3、NOX2和NOX4表达。糜蛋白酶抑制剂对MCGs诱导的心肌细胞凋亡具有部分抑制作用。
结论
2
在酒精性心肌病发生过程中,肥大细胞被激活,其释放的颗粒物质可能通过PAR2-PKCβ1-NOX2/NOX4信号通路促进心肌细胞凋亡,糜蛋白酶在此过程中发挥重要作用。
Objective
2
To investigate the role and related mechanisms of mast cells (MCs) in alcoholic cardiomyopathy (ACM).
Methods
2
An ACM model was established in C57BL/6 mice by feeding them with alcohol liquid diet, and some model mice were intervened with cromolyn sodium, a mast cell stabilizer. Cardiac function, myocardial remodeling and the expression of related proteins were evaluated by echocardiography, tissue staining and Western blot. In vitro, neonatal rat ventricular cardiomyocytes (NRVCs) were stimulated with mast cell granules (MCGs) and/or alcohol, and pathway inhibitors were used to explore the underlying mechanisms.
Results
2
Long-term alcohol feeding caused significant cardiac dysfunction and mast cells activation in mice, accompanied by increased expressions of chymase, NOX2, NOX4 and apoptosis-related protein cleaved Caspase-3 (c-Caspase3) in myocardial tissues (
P
<0.05). Pretreatment with cromolyn sodium improved cardiac function, inhibited mast cell activation, and reduced the expressions of the above proteins. In vitro experiments showed that treatment with MCGs or alcohol alone up-regulated the expressions of c-Caspase3, NOX2, NOX4 and phosphorylated PKCβ1 (p-PKCβ1) in cardiomyocytes, and the combined stimulation of the two had a synergistic effect. Protease-activated rec
eptor 2 (PAR2) inhibitor down-regulated the MCG-induced expressions of the above proteins. PKCβ1 inhibitor also inhibited the MCG-induced expressions of c-Caspase3, NOX2 and NOX4. Chymase inhibitor exerted a partial inhibitory effect on MCG-induced cardiomyocyte apoptosis.
Conclusion
2
During the development of ACM, mast cells are activated, and the released MCGs may promote cardiomyocyte apoptosis through the PAR2-PKCβ1-NOX2/NOX4 signaling pathway, in which chymase plays an important role.
Domínguez F , Adler E , García-Pavía P . Alcoholic cardiomyopathy: an update [J]. Eur heart J , 2024 , 45 ( 26 ): 2294 - 2305 .
Rehm J , Assanangkornchai S , Hendershot CS , et al . Alcohol use disorders [J]. Lancet (London, England) , 2025 , 406 ( 10516 ): 2269 - 2281 .
王昭 , 吴其明 . 酒精性心肌病临床特点及治疗研究进展 [J]. 中国医学前沿杂志 (电子版), 2019 , 11 ( 06 ): 7 - 11 .
Wang Z , Wu QM . Progress on clinical characteristics and treatment of alcoholic cardiomyopathy [J]. Chin J Front Med Sci (Electron Ed) , 2019 , 11 ( 06 ): 7 - 11 .
Ihekire NL , Okobi OE , Adedoye EA , et al . Heartache in a bottle: understanding alcoholic cardiomyopathy [J]. Cureus , 2023 , 15 ( 8 ): e42886 .
Hara M , Matsumori A , Ono K , et al . Mast cells cause apoptosis of cardiomyocytes and proliferation of other intramyocardial cells in vitro [J]. Circulation , 1999 , 100 ( 13 ): 1443 - 1449 .
Ribatti D , D'Amati A . Hematopoiesis and mast cell development [J]. Int J Mol Sci , 2023 , 24 ( 13 ): 10679 .
Patella V , Marino I , Arbustini E , et al . Stem cell factor in mast cells and increased mast cell density in idiopathic and ischemic cardiomyopathy [J]. Circulation , 1998 , 97 ( 10 ): 971 - 978 .
Batlle M , Perez-Villa F , Lazaro A , et al . Correlation between mast cell density and myocardial fibrosis in congestive heart failure patients [J]. Transplant Proc , 2007 , 39 ( 7 ): 2347 - 2349 .
Dell'Italia LJ , Collawn JF , Ferrario CM . Multifunctional role of chymase in acute and chronic tissue injury and remodeling [J]. Circ Res , 2018 , 122 ( 2 ): 319 - 336 .
刘丹 , 宋海旭 , 闫承慧 , 等 . E1A激活基因阻遏子基因对血管紧张素Ⅱ刺激后小鼠原代心肌细胞凋亡影响 [J]. 临床军医杂志 , 2021 , 49 ( 10 ): 1113 - 1116 .
Liu D , Song HX , Yan CH , et al . Effects of E1A activating gene repressor gene on apoptosis of primary mouse cardiomyocytes after angiotensin II stimulation [J]. Clin J Med Officers , 2021 , 49 ( 10 ): 1113 - 1116 .
Hu Y , Zabini D , Gu W , et al . The role of the human immune system in chronic hypoxic pulmonary hypertension [J]. Am J Respirat Crit Care Med , 2018 , 198 ( 4 ): 528 - 531 .
Jensen BM , Swindle EJ , Iwaki S , et al . Generation, isolation, and maintenance of rodent mast cells and mast cell lines [J]. Curr Protoc Immunol , 2006 , 3: 3.23. 1 - 3 .23.13. doi: 10.1002/0471142735.im0323s74 http://dx.doi.org/10.1002/0471142735.im0323s74 .
He JG , Chen SL , Huang YY , et al . The nonpeptide AVE0991 attenuates myocardial hypertrophy as induced by angiotensin II through downregulation of transforming growth factor-beta1/Smad2 expression [J]. Heart Vessels , 2010 , 25 ( 5 ): 438 - 443 .
Horckmans M , Ring L , Duchene J , et al . Neutrophils orchestrate post-myocardial infarction healing by polarizing macrophages towards a reparative phenotype [J]. Eur Heart J , 2017 , 38 ( 3 ): 187 - 197 .
Antipenko S , Mayfield N , Jinno M , et al . Neutrophils are indispensable for adverse cardiac remodeling in heart failure [J]. J Mol Cell Cardiol , 2024 , 189 : 1 - 11 .
Nevers T , Salvador AM , Grodecki-Pena A , et al . Left ventricular T-cell recruitment contributes to the pathogenesis of heart failure [J]. Circ Heart Fail , 2015 , 8 ( 4 ): 776 - 787 .
Kologrivova I , Shtatolkina M , Suslova T , et al . Cells of the immune system in cardiac remodeling: main players in resolution of inflammation and repair after myocardial infarction [J]. Front Immunol , 2021 , 12 : 664457 .
Toivari M , Maki T , Suutarla S , et al . Ethanol inhibits IgE-induced degranulation and cytokine production in cultured mouse and human mast cells [J]. Life Sci , 2000 , 67 ( 23 ): 2795 - 2806 .
Wimberly AL , Forsyth CB , Khan MW , et al . Ethanol-induced mast cell-mediated inflammation leads to increased susceptibility of intestinal tumorigenesis in the APC Delta468 min mouse model of colon cancer [J]. Alcohol Clin Exp Res , 2013 , 37 ( 1 ): E199 - E208 .
Mendes LO , Amorim JP , Teixeira GR , et al . Mast cells and ethanol consumption: interactions in the prostate, epididymis and testis of UChB rats [J]. Am J Reprod Immunol , 2011 , 66 ( 3 ): 170 - 178 .
Sharma R , Prasad V , Mccarthy ET , et al . Chymase increases glomerular albumin permeability via protease-activated receptor-2 [J]. Mol Cell Biochem , 2007 , 297 ( 1-2 ): 161 - 169 .
Groschwitz KR , Wu D , Osterfeld H , et al . Chymase-mediated intestinal epithelial permeability is regulated by a protease-activating receptor/matrix metalloproteinase-2-dependent mechanism [J]. Am J Physiol Gastrointest Liver Physiol , 2013 , 304 ( 5 ): G479 - G489 .
Steinhoff M , Buddenkotte J , Shpacovitch V , et al . Proteinase-activated receptors: transducers of proteinase-mediated signaling in inflammation and immune response [J]. Endocr Rev , 2005 , 26 ( 1 ): 1 - 43 .
van der Merwe JQ , Moreau F , Macnaughton WK . Protease-activated receptor-2 stimulates intestinal epithelial chloride transport through activation of PLC and selective PKC isoforms [J]. Am J Physiol Gastrointest Liver Physiol , 2009 , 296 ( 6 ): G1258 - G1266 .
Park GH , Jeon SJ , Ko HM , et al . Activation of microglial cells via protease-activated receptor 2 mediates neuronal cell death in cultured rat primary neuron [J]. Nitric Oxide , 2010 , 22 ( 1 ): 18 - 29 .
Tan Y , Li X , Prabhu SD , et al . Angiotensin II plays a critical role in alcohol-induced cardiac nitrative damage, cell death, remodeling, and cardiomyopathy in a protein kinase C/nicotinamide adenine dinucleotide phosphate oxidase-dependent manner [J]. J Am Coll Cardiol , 2012 , 59 ( 16 ): 1477 - 1486 .
杜燕欢 , 张世忠 . 肥大细胞与心血管疾病关系研究进展 [J]. 中国细胞生物学学报 , 2023 , 45 ( 11 ): 1705 - 1714 .
Du YH , Zhang SZ . Research progress on the relationship between mast cells and cardiovascular disease [J]. Chin J Cell Biol , 2023 , 45 ( 11 ): 1705 - 1714 .
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