中国组织工程研究 ›› 2024, Vol. 28 ›› Issue (25): 4018-4021.doi: 10.12307/2024.172

• 干细胞因子及调控因子 stem cell factors and regulatory factors • 上一篇    下一篇

成纤维细胞生长因子受体1,2在小鼠肾发育中的动态表达

薄双玲,马太芳,白慧健,杨羽甜,孙亚洁,赵欣晨    

  1. 山西医科大学汾阳学院组织学与胚胎学教研室,山西省汾阳市   032200
  • 收稿日期:2023-05-13 接受日期:2023-06-19 出版日期:2024-09-08 发布日期:2023-11-23
  • 作者简介:薄双玲,女,1979年生,山西省定襄县人,汉族,2008年锦州医科大学毕业,硕士,讲师,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(FDC202112),项目负责人:杨羽甜

Dynamic expression of fibroblast growth factor receptors 1 and 2 in mouse kidney development

Bo Shuangling, Ma Taifang, Bai Huijian, Yang Yutian, Sun Yajie, Zhao Xinchen   

  1. Department of Histology and Embryology, Fenyang College of Shanxi Medical University, Fenyang 032200, Shanxi Province, China
  • Received:2023-05-13 Accepted:2023-06-19 Online:2024-09-08 Published:2023-11-23
  • About author:Bo Shuangling, Master, Lecturer, Department of Histology and Embryology, Fenyang College of Shanxi Medical University, Fenyang 032200, Shanxi Province, China
  • Supported by:
    Luliang 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. FDC202112 (to YYT)

摘要:


文题释义:

成纤维细胞生长因子受体:是一类跨膜的酪氨酸激酶受体,结构包括胞外配体结合区、跨膜区和细胞内激酶区域,其与配体结合参与了血管生成、伤口愈合、胚胎发育等过程。
输尿管芽:人胚第5周初,中肾管近泄殖腔处向胚体的背外侧头端发出的一盲管,能诱导周围的中胚层细胞向其末端聚集、包绕,形成生后肾组织,二者相互诱导,共同分化形成后肾。


背景:在肾发育过程中,成纤维细胞生长因子受体1,2的时空表达仍是一个有争议的问题,且其与肾脏发育的关系尚不清楚。

目的:观察成纤维细胞生长因子受体1,2在小鼠肾发育过程中的动态表达,探求它们与肾发生发育的关系。
方法:培育不同发育阶段的胎鼠(E12,14,16,18 d)和仔鼠(N1,3,7,14,24,40 d),应用免疫组织化学技术观察成纤维细胞生长因子受体1,2在不同肾组织中的时空表达,结合体视学和Western blot对它们的表达进行定量分析。

结果与结论:①免疫组化显示:在E12 d时,成纤维细胞生长因子受体1主要定位在输尿管芽尖端的生后肾组织,随后表达在各期未成熟的肾小体、部分远曲小管和毛细血管袢,反应部位主要集中在生肾区;而成纤维细胞生长因子受体2开始即在输尿管芽和生后肾组织中均有表达,随着后肾发育,定位于未发育成熟的各期肾小体、远端小管、集合管和髓袢细段,成熟肾小体表达微弱;②体视学和Western blot检测显示:成纤维细胞生长因子受体1在生前表达较高,出生后逐渐下降,N7 d后表达很低;成纤维细胞生长因子受体2在肾脏的表达随着胚(日)龄的增加而升高,N7 d后趋于稳定;③结果表明:在肾的发育过程中,成纤维细胞生长因子受体1,2呈一定的时空性表达,推测二者可能参与了肾单位的发育与成熟,而在输尿管芽分支和形态的形成过程中,成纤维细胞生长因子受体2的作用更为显著。

https://orcid.org/0009-0006-6593-4439 (薄双玲) 

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: 成纤维细胞生长因子, 受体, 小鼠, 肾脏, 发育, 免疫组织化学, 免疫印迹

Abstract: BACKGROUND: The temporal and spatial expression of fibroblast growth factor receptors 1 and 2 remains a controversial issue during kidney development, so the relationship between them and kidney development remains unclear. 
OBJECTIVE: To observe the dynamic expression of fibroblast growth factor receptors 1 and 2 during kidney development of mice, and to investigate the relationship between them and kidney development.  
METHODS: The kidneys of fetal mice [embryotic days (E) 12, 14, 16, and 18] and neonatal mice [neonatal days (N) 1, 3, 7, 14, 24, and 40] were selected to examine the temporal and spatial expression of fibroblast growth factor receptors 1 and 2 by immunohistochemistry method in kidney tissues, and quantitative analysis was performed using western blot assay.
RESULTS AND CONCLUSION: (1) Immunohistochemistry showed that fibroblast growth factor receptor 1 was mainly localized in metanephric tissue surrounding the tip of the ureteral bud at E12. Subsequently, fibroblast growth factor receptor 1 was expressed in immature renal corpuscles at various stages, some distal convoluted tubules and capillary loops. The positive site was mainly concentrated in the generative region. Fibroblast growth factor receptor 2 was initially expressed in both ureteral buds and metanephric tissue. Fibroblast growth factor receptor 2 was localized in immature renal corpuscles, distal tubules, collecting ducts and thin segments of medullary loops with kidney development. However, the expression of renal corpuscles was weak. (2) Stereology and western blot assay showed that the expression of fibroblast growth factor receptor 1 was high before birth and gradually decreased after birth, while the expression was very low after N7 day. The expression level of fibroblast growth factor receptor 2 increased gradually with the kidney development and tended to be stable after N7 day. (3) The results exhibit that fibroblast growth factor receptors 1 and 2 are expressed spatially and temporally during kidney development. It is speculated that fibroblast growth factor receptors 1 and 2 may influence nephron development and maturation, and fibroblast growth factor receptor 2 is critical during the formation of ureteral buds and morphology. 

Key words: fibroblast growth factor, receptor, mouse, kidney, development, immunohistochemistry, western blotting

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