中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (5): 1156-1161.doi: 10.12307/2026.036

• 组织构建实验造模 experimental modeling in tissue construction • 上一篇    下一篇

骨形态发生蛋白7在小鼠肾发育中的时空表达

孙亚洁,赵欣晨,薄双玲   

  1. 山西医科大学汾阳学院,山西省汾阳市   032200

  • 收稿日期:2024-11-23 接受日期:2025-01-24 出版日期:2026-02-18 发布日期:2025-06-24
  • 通讯作者: 薄双玲,硕士,副教授,山西医科大学汾阳学院,山西省汾阳市 032200
  • 作者简介:孙亚洁,女,2002年生,山东省宁津县人,汉族,山西医科大学汾阳学院在读本科,主要从事肾脏发生发育的研究。
  • 基金资助:
    吕梁市重点研发计划项目(2020SHFZ43),项目负责人:薄双玲;山西医科大学汾阳学院大学生创新创业训练项目(S20241011401026),项目负责人:孙亚洁

Spatiotemporal expression of bone morphologic protein 7 in mouse kidney development

Sun Yajie, Zhao Xinchen, Bo Shuangling   

  1. Fenyang College of Shanxi Medical University, Fenyang 032200, Shanxi Province, China
  • Received:2024-11-23 Accepted:2025-01-24 Online:2026-02-18 Published:2025-06-24
  • Contact: Bo Shuangling, MS, Associate professor, Fenyang College of Shanxi Medical University, Fenyang 032200, Shanxi Province, China
  • About author:Sun Yajie, Fenyang College of Shanxi Medical University, Fenyang 032200, Shanxi Province, China
  • Supported by:
    Lyuliang Key Research and Development Project, No. 2020SHFZ43 (to BSL); Innovation and Entrepreneurship Training Program for College Students of Fenyang College of Shanxi Medical University, No. S20241011401026 (to SYJ)

摘要:


文题释义:
骨形态发生蛋白:是转化生长因子β超家族蛋白的成员,其活性形式可以由2种相同蛋白质的二聚体或2种相关骨形态发生蛋白的异二聚体组成。骨形态发生蛋白在骨骼发育、组织修复和再生医学中扮演着重要角色。
转化生长因子β:是可以在多种组织中合成的一种因子,主要以独立基因产物转化生长因子β1、β2或β3的同二聚体形式存在。转化生长因子β在胚胎发育、细胞分化、激素分泌和免疫功能中具有潜在作用,可作为前体蛋白。

背景:骨形态发生蛋白7主要在肾脏合成,在肾脏发育的不同阶段均有表达,但其表达的时空分布以及与肾脏发生发育的关系尚未见系统报道。
目的:观察骨形态发生蛋白7在小鼠肾脏不同发育时期的表达,从而探索骨形态发生蛋白7与肾脏发生发育的潜在联系。
方法:通过免疫组织化学技术、体视学方法和蛋白免疫印迹法,对胚龄(E)12,14,16,18 d及生后日龄(N)1,3,7,14,24,40,70 d小鼠肾脏组织中骨形态发生蛋白7的表达进行观察和分析。
结果与结论:①免疫组织化学结果显示,在肾脏发育早期,骨形态发生蛋白7主要表达于生肾区以及未成熟的肾小体,随后定位在成熟肾小体及其周围的远曲小管,且表达范围逐渐增加;N40 d后,骨形态发生蛋白7在肾间质中出现阳性表达;②体视学和蛋白免疫印迹结果显示,随着肾脏的发育,骨形态发生蛋白7的表达量逐渐降低,N7 d降至最低,随后缓慢升高;③结果表明,在肾脏发育过程中,骨形态发生蛋白7表达具有显著的时空特异性,推测可能与肾小体和远曲小管的发育及成熟有关。
https://orcid.org/0009-0001-9229-9964 (孙亚洁) 

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

关键词: 骨形态发生蛋白7, 肾脏, 发育, 小鼠, 肾小体, 远曲小管, 工程化组织构建

Abstract: BACKGROUND: Bone morphogenetic protein 7 is mainly synthesized in the kidney and is expressed at different stages of kidney development, but the spatiotemporal distribution of its expression and its relationship with kidney development have not been systematically reported.
OBJECTIVE: To observe the expression of bone morphogenetic protein 7 in mice kidneys during different developmental stages and to explore its potential relationship with kidney development. 
METHODS: Immunohistochemical techniques combined with stereological methods and western blot analysis were used to observe and analyze the expression of bone morphogenetic protein 7 in mouse kidney tissues at embryonic days (E)12, 14, 16, 18, and neonatal days (N)1, 3, 7, 14, 24, 40, and 70.
RESULTS AND CONCLUSION: (1) The results of immunohistochemistry showed that bone morphogenetic protein 7 was mainly expressed in the nephrogenic zone and immature renal corpuscles during the early stage of kidney development. Subsequently, it was located in mature renal corpuscles and the surrounding distal convoluted tubules, and the expression range gradually increased. After N40 days, bone morphogenetic protein 7 positively expressed in the renal interstitium. (2) Stereology and western blot results showed that the expression level of bone morphogenetic protein 7 gradually decreased with the development of the kidney, reached the lowest level at N7 days, and then slowly increased. To conclude, during the process of kidney development, the expression of bone morphogenetic protein 7 has significant spatiotemporal specificity, and it is hypothesized that it may be related to the development and maturation of renal corpuscles and distal convoluted tubules.

Key words: bone morphogenetic protein 7, kidney, development, mouse, renal corpuscle, distal convoluted tubule, engineered tissue construction

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