体育科学
體育科學
체육과학
China Sport Science
2012年
11期
76~82
,共null页
运动性免疫失衡 B淋巴细胞 发育 骨髓 转录因子 鼠 动物实验
運動性免疫失衡 B淋巴細胞 髮育 骨髓 轉錄因子 鼠 動物實驗
운동성면역실형 B림파세포 발육 골수 전록인자 서 동물실험
exercise-induced immune imbalance;B lymphocytes;development;bone marrow;transcription factor;rat;animal experimen
目的:观察运动性免疫失衡对调控骨髓早期B细胞分化发育的特异性转录因子的影响。方法:SPF级雄性SD大鼠128只,随机分为绝对安静组(Absolute control,简称AC组),运动前安静组(Control,简称A组)、运动后即刻组(Immediate简称J组)、运动后3 h组(3 Hours,简称3H组),进行6周递增负荷跑台运动,分别在第0、2、4、6周末用实时荧光定量PCR、Western Blot或脱钙股骨免疫组化检测其骨髓中转录因子E2A、EBF、PAX5的蛋白及基因表达。结果:6周递增负荷运动中,在第0周,各组间E2A、EBF、PAX5蛋白表达均无显著性差异(P〉0.05),而J组的EBF基因表达已呈显著性下降(P〈0.05);第2周,与A组相比,J组E2A、EBF蛋白表达均显著性下降(P〈0.05),而PAX5蛋白仅3H组呈显著性上升(P〈0.05),并且3H组仅EBF基因表达具显著性低下(P〈0.05);第4周,J组EBF蛋白有非常显著性下降(P〈0.01),3H组有显著性上升(P〈0.05),EBF、PAX5基因表达呈显著性下降(P〈0.05);第6周,PAX5蛋白在3H组有显著性上升(P〈0.05)。EBF,PAX5与Pro B、Pre B数量百分比之间呈较高正性相关系数(EBF蛋白表达与Pro B、Pre B的相关性分别为0.82、0.89;PAX5蛋白表达与Pro B、Pre B的相关性分别为0.81、0.87;EBFmRNA与Pro B、Pre B的相关性分别为0.89、0.92)。结论与建议:1)6周递增负荷运动过程中,E2A蛋白受运动的影响,波动幅度较小,EBF、PAX5则波动幅度较大。EBF、PAX5与骨髓pro B、pre B细胞数的相关度再次提示转录因子EBF、PAX5对发育中pro B、pre B细胞数量起主导调控作用。2)E2A、PAX5的蛋白与基因表达不同步,提示基因表达对蛋白质合成只是具有指导性合成的作用,还与合成酶的活性、合成底物的充足与否等多种因素有关,此外,还可能涉及基因转录后调控机制,有待进一步研究证实。3)EBFmRNA在WK0 呈现波动,提示EBF基因的转录对运动刺激更为敏感,并发现EBF比上级调控因子E2A和下游调控因子PAX5对B细胞发育的主导调控作用更加关键。
目的:觀察運動性免疫失衡對調控骨髓早期B細胞分化髮育的特異性轉錄因子的影響。方法:SPF級雄性SD大鼠128隻,隨機分為絕對安靜組(Absolute control,簡稱AC組),運動前安靜組(Control,簡稱A組)、運動後即刻組(Immediate簡稱J組)、運動後3 h組(3 Hours,簡稱3H組),進行6週遞增負荷跑檯運動,分彆在第0、2、4、6週末用實時熒光定量PCR、Western Blot或脫鈣股骨免疫組化檢測其骨髓中轉錄因子E2A、EBF、PAX5的蛋白及基因錶達。結果:6週遞增負荷運動中,在第0週,各組間E2A、EBF、PAX5蛋白錶達均無顯著性差異(P〉0.05),而J組的EBF基因錶達已呈顯著性下降(P〈0.05);第2週,與A組相比,J組E2A、EBF蛋白錶達均顯著性下降(P〈0.05),而PAX5蛋白僅3H組呈顯著性上升(P〈0.05),併且3H組僅EBF基因錶達具顯著性低下(P〈0.05);第4週,J組EBF蛋白有非常顯著性下降(P〈0.01),3H組有顯著性上升(P〈0.05),EBF、PAX5基因錶達呈顯著性下降(P〈0.05);第6週,PAX5蛋白在3H組有顯著性上升(P〈0.05)。EBF,PAX5與Pro B、Pre B數量百分比之間呈較高正性相關繫數(EBF蛋白錶達與Pro B、Pre B的相關性分彆為0.82、0.89;PAX5蛋白錶達與Pro B、Pre B的相關性分彆為0.81、0.87;EBFmRNA與Pro B、Pre B的相關性分彆為0.89、0.92)。結論與建議:1)6週遞增負荷運動過程中,E2A蛋白受運動的影響,波動幅度較小,EBF、PAX5則波動幅度較大。EBF、PAX5與骨髓pro B、pre B細胞數的相關度再次提示轉錄因子EBF、PAX5對髮育中pro B、pre B細胞數量起主導調控作用。2)E2A、PAX5的蛋白與基因錶達不同步,提示基因錶達對蛋白質閤成隻是具有指導性閤成的作用,還與閤成酶的活性、閤成底物的充足與否等多種因素有關,此外,還可能涉及基因轉錄後調控機製,有待進一步研究證實。3)EBFmRNA在WK0 呈現波動,提示EBF基因的轉錄對運動刺激更為敏感,併髮現EBF比上級調控因子E2A和下遊調控因子PAX5對B細胞髮育的主導調控作用更加關鍵。
목적:관찰운동성면역실형대조공골수조기B세포분화발육적특이성전록인자적영향。방법:SPF급웅성SD대서128지,수궤분위절대안정조(Absolute control,간칭AC조),운동전안정조(Control,간칭A조)、운동후즉각조(Immediate간칭J조)、운동후3 h조(3 Hours,간칭3H조),진행6주체증부하포태운동,분별재제0、2、4、6주말용실시형광정량PCR、Western Blot혹탈개고골면역조화검측기골수중전록인자E2A、EBF、PAX5적단백급기인표체。결과:6주체증부하운동중,재제0주,각조간E2A、EBF、PAX5단백표체균무현저성차이(P〉0.05),이J조적EBF기인표체이정현저성하강(P〈0.05);제2주,여A조상비,J조E2A、EBF단백표체균현저성하강(P〈0.05),이PAX5단백부3H조정현저성상승(P〈0.05),병차3H조부EBF기인표체구현저성저하(P〈0.05);제4주,J조EBF단백유비상현저성하강(P〈0.01),3H조유현저성상승(P〈0.05),EBF、PAX5기인표체정현저성하강(P〈0.05);제6주,PAX5단백재3H조유현저성상승(P〈0.05)。EBF,PAX5여Pro B、Pre B수량백분비지간정교고정성상관계수(EBF단백표체여Pro B、Pre B적상관성분별위0.82、0.89;PAX5단백표체여Pro B、Pre B적상관성분별위0.81、0.87;EBFmRNA여Pro B、Pre B적상관성분별위0.89、0.92)。결론여건의:1)6주체증부하운동과정중,E2A단백수운동적영향,파동폭도교소,EBF、PAX5칙파동폭도교대。EBF、PAX5여골수pro B、pre B세포수적상관도재차제시전록인자EBF、PAX5대발육중pro B、pre B세포수량기주도조공작용。2)E2A、PAX5적단백여기인표체불동보,제시기인표체대단백질합성지시구유지도성합성적작용,환여합성매적활성、합성저물적충족여부등다충인소유관,차외,환가능섭급기인전록후조공궤제,유대진일보연구증실。3)EBFmRNA재WK0 정현파동,제시EBF기인적전록대운동자격경위민감,병발현EBF비상급조공인자E2A화하유조공인자PAX5대B세포발육적주도조공작용경가관건。
Objective:The purpose of this study was to explore the effects of exercise- induced immune imbalance on the transcription factor E2A,EBF,PAX5 of early precursor B lymphocytes development in rat bone marrow.Method:128 Sprague–Dawley rats were randomly assigned to absolute control (AC),control (A),immediateness (J) and 3 hours (3H) after exercises,respectively.E2A,EBF,PAX5 protein and gene expression were measured by Real-time fluorescent quantitation PCR,Western Blot or decalcified femur immunohistochemisty at the end of 0 week,2nd,4th and 6th week.Result:WK 0:EBFmRNA at WK 0 J had shown a significant decrease (P〈0.05) compared with A group.WK 2:E2A,EBF protein expression at WK 2 I was significantly decreased (P〈0.05),and PAX5 only at WK 2 3H was significantly increased (P〈0.05) compared with A group.WK 4:EBF protein expression at WK 4 J showed a very significant decrease (P〈0.01),EBF mRNA,PAX5 mRNA was significantly decreased (P〈0.05) compared with A group.WK 6:PAX5 protein expression at WK 6 3H was significantly increased (P〈0.05).EBF,PAX5 and Pro B,Pre B correlation coefficient (EBF & Pro B,r=0.82;EBF & Pre B,r=0.89;PAX5 & Pro B,r=0.81;PAX5 & Pre B,r=0.87;EBFmRNA & Pro B,r=0.89;EBFmRNA & Pre B,r=0.92).Conclusion:1,EBF,PAX5 were more sensitive to exercise load than E2A.EBF,PAX5 protein and pro B,pre B cell mass in bone marrow to establish the correlation coefficient,once again prompted the transcription factor EBF,PAX5 were the prominent role of the dominant control of the development of pro B,pre B cells;2,EBFmRNA in WK0 showed a significant decrease.It suggests that EBF was even more crucial to the regulation of B cell development than E2A,PAX5.