OBJECTIVE:To investigate the efficacy of electroacupuncture(EA)stimulating Zusanli(ST36)and Xuanzhong(GB39)on synovial angiogenesis in rats with adjuvant arthritis(AA).METHODS:AA models were established by bilateral i...OBJECTIVE:To investigate the efficacy of electroacupuncture(EA)stimulating Zusanli(ST36)and Xuanzhong(GB39)on synovial angiogenesis in rats with adjuvant arthritis(AA).METHODS:AA models were established by bilateral injection of Freund's complete adjuvant(FCA)in male Sprague-Dawley rats.Three days after injection,rats were given EA at Zusanli(ST36)and Xuanzhong(GB39)acupoints,once every other day,for 16 d.The arthritis index score,paw volume,and hematoxylin-eosin(HE)staining was performed for each animal.Angiogenesis marker cluster of differentiation 34(CD34)expression and synovial cell apoptosis in synovial tissue were observed.The levels of Notch1,hairy and enhancer of split homolog-1(Hes1),transforming growth factor-beta(TGF-β)and basic fibroblast growth factor(bFGF)were subsequently detected.RESULTS:We found that EA significantly decreased arthritis index scores,paw volume,and HE staining scores.EA could significantly inhibit the expression of CD34,promoting apoptosis of synovial cells in the joint synovial tissue of AA rats.The expression of Notch1 signaling pathway proteins and mR NAs(Notch1,Hes1,TGF-β,and bFGF)were markedly downregulated by EA treatment.CONCLUSIONS:These results prove that EA attenuates synovial angiogenesis by inhibiting the Notch1 signaling pathway in AA rat models.Based on our findings,we propose that EA is a promising complementary and alternative therapy in rheumatoid arthritis.展开更多
基金Natural Science Foundation-funded Project:Study of Electroacupuncture on the Angiogenesis in Rheumatoid Arthritis Rats by HIF-1α/MDM2/p53 Signaling Pathway(No.81704152)Study on Immune Mechanisms of Macrophage M1/M2 Polarization in the Treatment of Rheumatoid Arthritis by Moxibustion“trengthening Body Resistance and Eliminating Evil”(No.81973959)Foundation of Science and Technology Department of Sichuan Province:Study of Electroacupuncture on the Punnus in Rheumatoid Arthritis Rats by HIF-1α,STAT3,Noth1 Signaling Pathway(No.2019YJ0491)。
文摘OBJECTIVE:To investigate the efficacy of electroacupuncture(EA)stimulating Zusanli(ST36)and Xuanzhong(GB39)on synovial angiogenesis in rats with adjuvant arthritis(AA).METHODS:AA models were established by bilateral injection of Freund's complete adjuvant(FCA)in male Sprague-Dawley rats.Three days after injection,rats were given EA at Zusanli(ST36)and Xuanzhong(GB39)acupoints,once every other day,for 16 d.The arthritis index score,paw volume,and hematoxylin-eosin(HE)staining was performed for each animal.Angiogenesis marker cluster of differentiation 34(CD34)expression and synovial cell apoptosis in synovial tissue were observed.The levels of Notch1,hairy and enhancer of split homolog-1(Hes1),transforming growth factor-beta(TGF-β)and basic fibroblast growth factor(bFGF)were subsequently detected.RESULTS:We found that EA significantly decreased arthritis index scores,paw volume,and HE staining scores.EA could significantly inhibit the expression of CD34,promoting apoptosis of synovial cells in the joint synovial tissue of AA rats.The expression of Notch1 signaling pathway proteins and mR NAs(Notch1,Hes1,TGF-β,and bFGF)were markedly downregulated by EA treatment.CONCLUSIONS:These results prove that EA attenuates synovial angiogenesis by inhibiting the Notch1 signaling pathway in AA rat models.Based on our findings,we propose that EA is a promising complementary and alternative therapy in rheumatoid arthritis.
