Effects of the ITPR1 gene overexpression on Ca²⁺ concentration, lipid content and calcium transport-related genes in duck uterine epithelial cells.

Minfang You; Yuanyu Qin; Yiyu Zhang; Chaomei Liao; Guanghui Tan; Jiezhang LI; Wangui LI

Return

Effects of the ITPR1 gene overexpression on Ca²⁺ concentration, lipid content and calcium transport-related genes in duck uterine epithelial cells.

Author: Minfang YOU ¹ ; Yuanyu QIN ¹ ; Yiyu ZHANG ¹ ; Chaomei LIAO ¹ ; Guanghui TAN ¹ ; Jiezhang LI ¹ ; Wangui LI ²
Author Information

1. Key Laboratory of Genetics, Breeding and Reproduction of Plateau Mountain Animals, Ministry of Education, College of Animal Science, Guizhou University, Guiyang 550025, Guizhou, China.
2. The Agriculture and Rural Affairs Bureau of Liupanshui, Liupanshui 553001, Guizhou, China.
Publication Type:Journal Article
Keywords: Ca²⁺ concentration; ITPR1 gene; calcium transport-related genes; lipid content; uterine epithelial cells
MeSH: Animals; Calcium/metabolism*; Ducks/genetics*; Epithelial Cells; Female; Inositol; Inositol 1,4,5-Trisphosphate Receptors; Lipids; Uterus
From: Chinese Journal of Biotechnology 2021;37(7):2443-2452
CountryChina
Language:Chinese
Abstract: Inositol 1,4,5-trisphosphate receptor 1 (ITPR1) is an important intracellular channel for releasing Ca²⁺. In order to investigate the effects of the ITPR1 overexpression on Ca²⁺ concentration and lipid content in duck uterine epithelial cells and its effects on calcium transport-related genes, the structural domain of ITPR1 gene of duck was cloned into an eukaryotic expression vector and transfected into duck uterine epithelial cells. The overexpression of the ITPR1 gene, the concentration of Ca²⁺, the lipid content, and the expression of other 6 calcium transport-related genes was determined. The results showed that the concentration of Ca²⁺ in uterine epithelial cells was significantly reduced after transfection (P<0.05), the triglyceride content was significantly increased (P<0.01), and the high-density lipoprotein content was significantly decreased (P<0.01). The correlation analysis results showed that the overexpression of the C-terminal half of the ITPR1 gene was significantly positively correlated with the total cholesterol content (P<0.01), which was significantly positively correlated with the low-density lipoprotein content (P<0.05). The overexpression of the N-terminal half of the ITPR1 gene was significantly positively correlated with the triglyceride content (P<0.01), which was significantly negatively correlated with the concentration of Ca²⁺ (P<0.05). RT-qPCR results of 6 calcium transport-related genes showed that the overexpression of the C-terminal half of the ITPR1 gene significantly inhibited the expression of the IP3R2, VDAC2 and CAV1 genes, and the overexpression of the N-terminal half of the ITPR1 gene significantly promoted the expression of the IP3R3 and CACNA2D1 genes. In conclusion, the ITPR1 gene overexpression can promote Ca²⁺ release in duck uterus epithelial cells, promote the synthesis of triglyceride, low-density lipoprotein and cholesterol, and inhibit the production of high-density lipoprotein, and the ITPR1 gene overexpression affected the expression of all 6 calcium transport-related genes.