China Animal Husbandry and Veterinary Medicine ›› 2021, Vol. 48 ›› Issue (7): 2644-2652.doi: 10.16431/j.cnki.1671-7236.2021.07.041

• Basic Veterinary Medicine • Previous Articles     Next Articles

Effects of Cat AD-MSCs and Its Conditioned Medium on Apoptosis and Proliferation of CRFK Damaged by Gentamicin

JIANG Wenkang1, LUO Dongzhang1, ZHAO Mingming1, LUO Huina1, FAN Quanbao1, WANG Cuilin2, RUAN Huimin2, ZHU Haiqi2, CHEN Shengfeng2, WANG Bingyun1,2   

  1. 1. College of Life Science and Engineering, Foshan University of Science and Technology, Foshan 528231, China;
    2. Guangdong VETCELL Bio-Tech Co., Ltd., Foshan 528231, China
  • Received:2020-10-29 Online:2021-07-20 Published:2021-07-15

Abstract: The aim of the present study was to explore the effect and mechanism of cat adipose mesenchymal stem cells (AD-MSCs) and adipose mesenchymal stem cells conditioned medium (AD-MSCs-CM) on the apoptosis of crandell rees feline kidney (CRFK) damaged by gentamicin.This experiment was divided into 4 groups,which were control group,gentamicin (GM) group,AD-MSCs group and AD-MSCs -CM group.Type Ⅰ collagenase digestion method was used to separate cat AD-MSCs,and identified by flow cytometry identification.CRFK was treated with GM complete medium at concentrations of 0,2,4 and 8 mmol/L,and the cell activity was detected by CCK-8 assay at 12,24 and 48 h to screen the optimal concentration for model making.The damaged CRFK was co-cultured with cat AD-MSCs and AD-MSCs-CM,respectively.After 24,48 and 72 h,the proliferation activity of the cells was detected by CCK-8 assay,and the apoptosis rate was detected by Annexin V flow tometry 24 h later.Finally,the expression levels of cyclin D1 (CCND1),proliferative nuclear antigen (PCNA),Bax and Bcl-2 genes were detected by Real-time quantitative PCR.The results showed that in vitro cultured cat AD-MSCs presented typical long spindle shape,with high expression of MSCs surface markers CD44,CD90 and CD105,but no expression of leukocyte surface marker CD45.The results suggested that AD-MSCs and AD-MSCs-CM enhanced the proliferative activity and decreased the apoptosis rate of damaged CRFK cells by promoting the expression of proliferation gene CCND1,PCNA and anti-apoptotic gene Bcl-2 of GM-damaged CRFK cells and reducing the expression of pro-apoptotic gene Bax.In this experiment,cat AD-MSCs were successfully isolated,and it was confirmed that Ad-MSCs and its conditional medium could promote the proliferation and migration of GM-induced CRFK in vitro,which provided a basis for the treatment of cat AD-MSCs for acute kidney injury.

Key words: cat; mesenchymal stem cells; gentamicin; acute renal injury; apoptosis

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