中华麻醉学杂志
中華痳醉學雜誌
중화마취학잡지
CHINESE JOURNAL OF ANESTHESIOLOGY
2014年
3期
338-340
,共3页
曹俊%魏珂%李庆姝%黎平%董军%罗洁%程波%闵苏
曹俊%魏珂%李慶姝%黎平%董軍%囉潔%程波%閔囌
조준%위가%리경주%려평%동군%라길%정파%민소
受体 ,CXCR3%T淋巴细胞 ,调节性%肾%再灌注损伤
受體 ,CXCR3%T淋巴細胞 ,調節性%腎%再灌註損傷
수체 ,CXCR3%T림파세포 ,조절성%신%재관주손상
Receptors,CXCR3%T-lymphocytes,regulatory%Kidney%Reperfusion injury
目的:评价肾缺血再灌注损伤小鼠肾组织调节性T淋巴细胞(Treg细胞)趋化因子受体3(CXCR3)表达的变化。方法雄性SPF级C57BL/6小鼠48只,8~12周龄,体重20~25 g ,采用随机数字表法,将其分为3组( n=16):假手术组(S组)、肾缺血再灌注组(I/R组)和CD25单克隆抗体PC61组(P组)。采用阻断双侧肾蒂45 min再灌注的方法制备肾缺血再灌注损伤模型。P组于模型制备前24 h时腹腔注射PC61250μg。I/R组和P组于再灌注24 h(T1)和72 h(T2)时、S组于相应时点取下腔静脉血样,测定血清BUN和Cr的浓度,随后取双肾,进行肾组织损伤评分,测定CD4+ CD25+ Foxp3+Treg细胞和CXCR3+CD4+CD25+ Foxp3+Treg细胞的数量。结果与S组比较,I/R组和P组T1,2时血清BUN、Cr的浓度和肾组织损伤评分升高,I/R组T2时CD4+CD25+ Foxp3+Treg细胞和CXCR3+CD4+CD25+Foxp3+Treg细胞的数量增多( P<0.05);与I/R组比较,P组T2时血清BUN、Cr浓度和肾组织损伤评分升高,CD4+ CD25+ Foxp3+ Treg细胞和CXCR3+ CD4+ CD25+ Foxp3+ Treg细胞的数量减少( P<0.05)。结论 CXCR3表达上调有助于Treg细胞迁移至肾缺血再灌注损伤小鼠的肾组织。
目的:評價腎缺血再灌註損傷小鼠腎組織調節性T淋巴細胞(Treg細胞)趨化因子受體3(CXCR3)錶達的變化。方法雄性SPF級C57BL/6小鼠48隻,8~12週齡,體重20~25 g ,採用隨機數字錶法,將其分為3組( n=16):假手術組(S組)、腎缺血再灌註組(I/R組)和CD25單剋隆抗體PC61組(P組)。採用阻斷雙側腎蒂45 min再灌註的方法製備腎缺血再灌註損傷模型。P組于模型製備前24 h時腹腔註射PC61250μg。I/R組和P組于再灌註24 h(T1)和72 h(T2)時、S組于相應時點取下腔靜脈血樣,測定血清BUN和Cr的濃度,隨後取雙腎,進行腎組織損傷評分,測定CD4+ CD25+ Foxp3+Treg細胞和CXCR3+CD4+CD25+ Foxp3+Treg細胞的數量。結果與S組比較,I/R組和P組T1,2時血清BUN、Cr的濃度和腎組織損傷評分升高,I/R組T2時CD4+CD25+ Foxp3+Treg細胞和CXCR3+CD4+CD25+Foxp3+Treg細胞的數量增多( P<0.05);與I/R組比較,P組T2時血清BUN、Cr濃度和腎組織損傷評分升高,CD4+ CD25+ Foxp3+ Treg細胞和CXCR3+ CD4+ CD25+ Foxp3+ Treg細胞的數量減少( P<0.05)。結論 CXCR3錶達上調有助于Treg細胞遷移至腎缺血再灌註損傷小鼠的腎組織。
목적:평개신결혈재관주손상소서신조직조절성T림파세포(Treg세포)추화인자수체3(CXCR3)표체적변화。방법웅성SPF급C57BL/6소서48지,8~12주령,체중20~25 g ,채용수궤수자표법,장기분위3조( n=16):가수술조(S조)、신결혈재관주조(I/R조)화CD25단극륭항체PC61조(P조)。채용조단쌍측신체45 min재관주적방법제비신결혈재관주손상모형。P조우모형제비전24 h시복강주사PC61250μg。I/R조화P조우재관주24 h(T1)화72 h(T2)시、S조우상응시점취하강정맥혈양,측정혈청BUN화Cr적농도,수후취쌍신,진행신조직손상평분,측정CD4+ CD25+ Foxp3+Treg세포화CXCR3+CD4+CD25+ Foxp3+Treg세포적수량。결과여S조비교,I/R조화P조T1,2시혈청BUN、Cr적농도화신조직손상평분승고,I/R조T2시CD4+CD25+ Foxp3+Treg세포화CXCR3+CD4+CD25+Foxp3+Treg세포적수량증다( P<0.05);여I/R조비교,P조T2시혈청BUN、Cr농도화신조직손상평분승고,CD4+ CD25+ Foxp3+ Treg세포화CXCR3+ CD4+ CD25+ Foxp3+ Treg세포적수량감소( P<0.05)。결론 CXCR3표체상조유조우Treg세포천이지신결혈재관주손상소서적신조직。
Objective To evaluate the changes in the expression of CXCR3 in regulatory T cells (Tregs) in the renal tissues of mice with renal ischemia-reperfusion (I/R) injury .Methods Forty-eight SPF male C57BL/6J mice ,aged 8-12 yr ,weighing 20-25 g ,were randomly divided into 3 groups ( n=16 each ) using a random number table:sham operation group (group S) ,group I/R and CD25 monoclonal antibody PC61 group (group P) . Bilateral kidneys were exposed and their pedicles were occluded for 45 min with atraumatic mini-clamp followed by 72 h reperfusion .PC61 250 μg was injected intraperitoneally at 24 h before the model was established .Blood samples were collected from the inferior vena cava at 24 and 72 h of reperfusion (T1 ,2 ) for determination of serum blood urea nitrogen (BUN) and creatinine (Cr) concentrations .Bilateral kidneys were obtained for determination of CD4+ CD25+ Foxp3+ Treg count and CXCR3+ CD4+ CD25+ Foxp3+ Treg count in renal tissues and the pathological changes of the kidney were scored .Results Compared with group S , the serum BUN and Cr concentrations and pathological scores were significantly increased at T1 ,2 in I/R and P groups ,and the number of CD4+ CD25+ Foxp3+ Treg and CXCR3+ CD4+ CD25+ Foxp3+ Treg was increased at T2 in I/R group ( P<0.05) .Compared with group I/R ,the serum BUN and Cr concentrations and pathological scores were significantly increased at T2 ,and the number of CD4+ CD25+ Foxp3+ Treg and CXCR3+ CD4+ CD25+ Foxp3+ Treg was decreased at T2 in P group ( P<0.05 ) .Conclusion Up-regulation of CXCR3 is helpful in migration of Tregs into the renal tissues of mice with renal I/R injury .