马心肌成纤维细胞的分离、培养与鉴定
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阿迪娜·吾斯曼(2001—),女,维吾尔族,新疆和硕人,硕士研究生,研究方向为动物生产学。E-mail: adina0901@126.com |
收稿日期: 2025-09-25
网络出版日期: 2026-03-16
基金资助
国家自然科学基金青年科学基金项目(32202667)
新疆维吾尔自治区重大科技专项(2022A02013-1)
新疆维吾尔自治区自然科学基金青年科学基金(2024D01B40)
中央引导地方科技发展资金项目(ZYYD2026JD07)
新疆马繁育与运动生理重点实验室开放课题(XJMFY202402)
Isolation, Culture and Identification of Equine Cardiac Fibroblasts
Received date: 2025-09-25
Online published: 2026-03-16
本试验旨在建立马心肌成纤维细胞的体外分离与培养方法,并对其生物学特性进行分析,从而为马匹运动生理学与心脏重塑研究提供关键的细胞模型。以3~6月龄胎马心脏组织为试验材料,利用胰蛋白酶和Ⅱ型胶原酶联合消化法分离心肌成纤维细胞,并对细胞进行形态观察、免疫荧光鉴定、生长曲线测定、凋亡检测和染色体核型分析。结果显示:1)胰蛋白酶和Ⅱ型胶原酶联合消化法能成功分离马心肌成纤维细胞并能顺利传代培养,第16代马心肌成纤维细胞仍具有典型的成纤维细胞特征且活性良好。2)免疫荧光染色结果证明所培养的细胞为马心肌成纤维细胞。3)细胞冻存复苏试验结果显示,第3代与第16代细胞冻存复苏后的存活率均保持在90%以上。4)生长曲线分析显示分离的马心肌成纤维细胞在体外培养环境下生长稳定、状态健康,具有较强的增殖活力。5)基于低凋亡率和正常核型的分析结果表明当前细胞状态良好。综上所述,本试验使用胰蛋白酶和Ⅱ型胶原酶联合消化法成功分离出马心肌成纤维细胞,所获细胞形态典型、增殖活力好,多次传代培养和冷冻保存的细胞仍具有良好的细胞活力。
阿迪娜·吾斯曼 , 付义杰 , 张紫菡 , 彭江飞 , 常笑康 , 杨利平 , 鲍奕柯 , 褚洪忠 , 姚闰晨 , 翟曼君 , 曾亚琦 . 马心肌成纤维细胞的分离、培养与鉴定[J]. 动物营养学报, 2026 , 38(3) : 2195 -2202 . DOI: 10.12418/CJAN2026.176
This study aimed to establish an in vitro isolation and culture method for equine cardiac fibroblasts and analyze their biological characteristics, thereby providing a critical cellular model for equine exercise physiology and cardiac remodeling research. Using fetal horse heart tissue aged 3 to 6 months as experimental material, cardiac fibroblasts were isolated via a combined digestion method with trypsin and type Ⅱ collagenase. Subsequently, morphological observation, immunofluorescence characterization, growth curve analysis, apoptosis detection, and chromosomal karyotype analysis were performed on the cells. The results showed as follows: 1) the combined digestion method with trypsin and type Ⅱ collagenase successfully isolated equine cardiac fibroblasts, which could be sub-cultured continuously. Even at passage 16, the equine cardiac fibroblasts retained typical fibroblast characteristics and maintained good viability. 2) Immunofluorescence staining confirmed that the cultured cells were equine cardiac fibroblasts. 3) The cell cryopreservation and thawing test indicated that cells from both passage 3 and passage 16 maintained a viability above 90% after cryopreservation and thawing. 4) Growth curve analysis demonstrated that the isolated equine cardiac fibroblasts grew stably and healthily under in vitro culture conditions, exhibiting strong proliferative capacity. 5) Analysis based on low apoptosis rates and normal karyotypes indicated the cells were currently in good condition. In summary, this study successfully isolated equine cardiac fibroblasts using a combined digestion method with trypsin and type Ⅱ collagenase. The obtained cells exhibit typical morphology, strong proliferative capacity, and maintain excellent viability after multiple passages and cryopreservation.
Key words: horse; cardiac fibroblasts; primary isolation; biological characteristics
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