Comparison of biological characteristics of mouse bone marrow mesenchymal stem cells after interference and overexpression of telomere Cajal body protein-1
- VernacularTitle:干扰和过表达端粒酶卡哈尔体蛋白1小鼠骨髓间充质干细胞的生物学特性对比
- Author:
Shuqian LIN
1
;
Xilong ZHAO
1
;
Jing GAO
1
;
Xinghua PAN
1
;
Zian LI
1
;
Guangping RUAN
1
Author Information
- Publication Type:Journal Article
- Keywords: bone marrow mesenchymal stem cell; telomerase Cajal body protein 1; aging; overexpression; interference; cell proliferation; cell apoptosis; engineered stem cell
- From: Chinese Journal of Tissue Engineering Research 2025;29(31):6616-6624
- CountryChina
- Language:Chinese
- Abstract: BACKGROUND:With the increase of age,the function of bone marrow-derived mesenchymal stem cells is gradually reduced,and delaying the aging of bone marrow-derived mesenchymal stem cells itself has become an important topic.OBJECTIVE:To explore ways to delay the aging of bone marrow-derived mesenchymal stem cells by changing the expression of telomerase Cajal body protein 1(TCAB1)gene.METHODS:Mouse bone marrow-derived mesenchymal stem cells were cultured by cell adhesion method.TCAB1 gene in bone marrow-derived mesenchymal stem cells was overexpressed and interfered by recombinant lentivirus technique.The expression of aging related genes P16,P21,P53,and P27 was detected by qPCR.The relative length of telomeres was detected by qPCR.The expression of aging proteins P16,P21,P53,and P27 was detected by western blot assay.Cell proliferation was detected by CCK-8 assay.Annexin V-PE/7-AAD apoptosis kit was used to detect the degree of cell apoptosis.RESULTS AND CONCLUSION:Bone marrow-derived mesenchymal stem cell lines overexpressing TCAB1 gene had decreased expression of senescence related genes and proteins,increased Telomere relative length,stronger cell proliferation,less apoptosis,and a youthful state.The expression of age-related genes and proteins in bone marrow mesenchymal stem cells interfering with TCAB1 gene increased,and the relative telomere length decreased;cell proliferation ability was weak;cell apoptosis was more,and cells showed senescence.These results indicate that increasing the expression of TCAB1 in an appropriate range can delay the rate of cell senescence.
