Regulation of steroidogenic function of luteal cells by thrombospondin and insulin in water buffalo (Bubalus bubalis)

被引:0
作者
Paul, Avishek [1 ]
Punetha, Meeti [1 ]
Kumar, Sai [1 ]
Sonwane, Arvind [2 ]
Chouhan, Vikrant S. [1 ]
Singh, Gyanendra [1 ]
Maurya, V. P. [1 ]
Sarkar, M. [1 ]
机构
[1] Indian Vet Res Inst, Physiol & Climatol Div, Bareilly 243122, Uttar Pradesh, India
[2] Indian Vet Res Inst, Div Anim Genet, Bareilly 243122, Uttar Pradesh, India
关键词
angiogenesis; apoptosis; CD36; corpus luteum; CRISPR; Cas9; luteal cell viability; progesterone; vWF; ENDOTHELIAL GROWTH-FACTOR; CORPUS-LUTEUM; ESTROUS-CYCLE; PROGESTERONE PRODUCTION; VASCULAR DEVELOPMENT; FACTOR-I; EXPRESSION; LOCALIZATION; ANGIOGENESIS; RECEPTOR;
D O I
10.1071/RD18188
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
The present study examined the effect of exogenous thrombospondin 1 (TSP1) on the steroidogenic function of luteal cells cultured invitro. Furthermore, the transcriptional interaction of insulin with TSP1 and its receptor, cluster of differentiation 36 (CD36) were also investigated. At the highest dose (500ngmL(-1)) TSP1 significantly downregulated the expression of the angiogenic marker von Willebrand factor (vWF) and progesterone production in cultured luteal cells. Moreover, the simultaneous upregulation in the expression of caspase 3 by exogenous TSP1 was consistent with a reduction in the number of viable luteal cells as determined by 3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyltertrazolium bromide (MTT) assay after 72h of culture. However, the expression of critical enzymes in the progesterone synthetic pathway was not significantly modulated by treatment with TSP1 in cultured luteal cells. Knocking out of endogenous TSP1 with the clustered regularly interspaced short palindromic repeats (CRISPR)/ CRISPRassociated protein9 (Cas9) system improved the viability of luteal cells as well as increasing progesterone production and decreasing caspase 3 activation. Insulin treatment suppressed the expression of TSP1 and CD36 in cultured luteal cells in a dose- and time-dependent manner. To conclude, TSP1 acts as a negative endogenous regulator of angiogenesis that attenuates progesterone production, possibly by reducing the number of luteal cells via apoptosis during luteal regression, whereas insulin as a luteinising signal may have inhibited the thrombospondin system for the efficient development of luteal function.
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收藏
页码:751 / 759
页数:9
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