The involvement of translationally controlled tumor protein during lamb rumen epithelium development
文献类型： 外文期刊
作者： Zheng, Kaizhi 1 ; Wu, Jianliang 1 ; Guo, Liangyong 2 ; Ying, Yingyu 2 ; Li, Peng 3 ; Cao, Yang 1 ; Jiang, Junfang 1 ; Hua 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Anim Husb & Vet, Hangzhou 310021, Peoples R China
2.Huzhou Acad Agr Sci, Huzhou 313000, Peoples R China
3.Anim Dis Control & Prevent Ctr Wuxing Dist, Huzhou 313002, Peoples R China
4.Jiangsu Acad Agr Sci, Inst Anim Sci, Nanjing 210014, Peoples R China
关键词： Translationally controlled tumor protein; Lamb; Rumen epithelia development; Acetate:propionate ratio
期刊名称：ACTA HISTOCHEMICA （ 2020影响因子：2.479； 五年影响因子：2.456 ）
ISSN： 0065-1281
年卷期： 2021 年 123 卷 5 期
收录情况： SCI
摘要： Early weaning is usually applied to improve the reproductive efficiency of sheep in mutton production, while the development of rumen is of vital importance for sheep weaning age. Translationally controlled tumor protein (TCTP) is a highly conserved protein which participates in multiple tissue and organ development. Thus, we hypothesized that TCTP was involved in sheep rumen development. Histological analyses of sheep rumen epithelium showed that the epithelium formed tough shaped papillae without growing from birth to day 15 of age, after which it rapidly developed to functional epithelia on day 45 of age. We then found TCTP expressed in stratum basale, stratum spinosum and stratum granulosum of rumen epithelium. TCTP protein expression remained at a relative low level from day 0 to day 15 of age, it then significantly increased on day 30 (p < 0.05) and gradually decreased until day 60. Furthermore, to explore the role of TCTP in sheep rumen and its regulation, we found the ratio of Ki67 positive cell in stratum basale cells followed the similar pattern as the expression of TCTP. We also found the ratio of acetate:propionate in rumen fluid decreased from day 30 to day 60 of age (p < 0.05). To conclude, our data indicated that TCTP participated in rumen papillae growth by promoting rumen stratum basale cell proliferation.
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