华西口腔医学杂志
華西口腔醫學雜誌
화서구강의학잡지
WEST CHINA JOURNAL OF STOMATOLOGY
2015年
2期
125-129
,共5页
辅助性T17细胞%牙龈卟啉单胞菌%牙周炎%白细胞介素-17A%骨吸收
輔助性T17細胞%牙齦卟啉單胞菌%牙週炎%白細胞介素-17A%骨吸收
보조성T17세포%아간계람단포균%아주염%백세포개소-17A%골흡수
T helper 17 cells%Porphyromonas gingivalis%periodontitis%interleukin-17A%bone resorption
目的:??研究辅助性T(Th)17细胞在牙周炎小鼠中的免疫状态。方法??将7周龄C57BL/6雌性小鼠随机分为牙周炎组和对照组,每组4只。牙周炎组采用口腔涂抹牙龈卟啉单胞菌(P.?gingivalis)的方法建立牙周炎动物模型。对照组涂抹PBS液。在涂抹结束后的第4周取材,流式细胞仪检测CD4+维甲酸相关核孤儿受体(ROR)γτ+(Th17)细胞;酶联免疫吸附(ELISA)检测Th17细胞相关的细胞因子白细胞介素(IL)-17A的蛋白表达。结果??牙周炎小鼠牙龈组织、颈部淋巴结和外周血中CD4+?RORγτ+(Th17)细胞在总CD4+?T细胞中的比例和细胞数量显著高于对照组(P<0.01)。与对照组相比,牙周炎组IL-17A的表达增加(P<0.05)。结论??在牙周炎的发生发展中,Th17细胞介导的细胞免疫应答增强,牙龈组织、颈部淋巴结和外周血可能是Th17细胞介导免疫应答的主要场所。
目的:??研究輔助性T(Th)17細胞在牙週炎小鼠中的免疫狀態。方法??將7週齡C57BL/6雌性小鼠隨機分為牙週炎組和對照組,每組4隻。牙週炎組採用口腔塗抹牙齦卟啉單胞菌(P.?gingivalis)的方法建立牙週炎動物模型。對照組塗抹PBS液。在塗抹結束後的第4週取材,流式細胞儀檢測CD4+維甲痠相關覈孤兒受體(ROR)γτ+(Th17)細胞;酶聯免疫吸附(ELISA)檢測Th17細胞相關的細胞因子白細胞介素(IL)-17A的蛋白錶達。結果??牙週炎小鼠牙齦組織、頸部淋巴結和外週血中CD4+?RORγτ+(Th17)細胞在總CD4+?T細胞中的比例和細胞數量顯著高于對照組(P<0.01)。與對照組相比,牙週炎組IL-17A的錶達增加(P<0.05)。結論??在牙週炎的髮生髮展中,Th17細胞介導的細胞免疫應答增彊,牙齦組織、頸部淋巴結和外週血可能是Th17細胞介導免疫應答的主要場所。
목적:??연구보조성T(Th)17세포재아주염소서중적면역상태。방법??장7주령C57BL/6자성소서수궤분위아주염조화대조조,매조4지。아주염조채용구강도말아간계람단포균(P.?gingivalis)적방법건립아주염동물모형。대조조도말PBS액。재도말결속후적제4주취재,류식세포의검측CD4+유갑산상관핵고인수체(ROR)γτ+(Th17)세포;매련면역흡부(ELISA)검측Th17세포상관적세포인자백세포개소(IL)-17A적단백표체。결과??아주염소서아간조직、경부림파결화외주혈중CD4+?RORγτ+(Th17)세포재총CD4+?T세포중적비례화세포수량현저고우대조조(P<0.01)。여대조조상비,아주염조IL-17A적표체증가(P<0.05)。결론??재아주염적발생발전중,Th17세포개도적세포면역응답증강,아간조직、경부림파결화외주혈가능시Th17세포개도면역응답적주요장소。
Objective??This?study?investigates?the?immune?status?of?T?helper?(Th)?17?cells?in?mice?with?periodontitis. Methods??Seven-week-old?C57BL/6?female?mice?were?randomly?divided?into?the?control?and?periodontitis?groups.?Each?group?comprisedfour?mice.?Experimental?periodontitis?was?induced?in?mice?by?oral?infection?with?Porphyromonas?gingivalis?in?the?periodontitis?group.?Phosphate-buffered?saline?solution?was?used?in?the?control?group.?All?mice?were?sacrificed?4?weeks?after?the?last?P.?gingivalis?infection.?CD4+?retinoid-related orphan receptor (ROR) γτ+?(Th17)?cells?were?analyzed?by?flow?cytometry.?The?protein?expression?of?Th17?cell-related?cytokine?interleukin?(IL)-17A?was?detected?by?enzyme-linked?immu-nosorbentassay?(ELISA).?Results??Flow?cytometry?showed?that?the?percentage?of?CD4+?RORγτ+?(Th17)?cells?in?all?CD4+T?cells?and?the?cell?number?in?gingival?tissues,?cervical?lymph?nodes?(CLNs),?and?the?peripheral?blood?obviously?increased?(P<0.01)?in?the?periodontitis?group.?ELISA?showed?that?compared?with?the?control?group,?the?periodontitis?group?exhibited?an?obvious?increase?in?the?protein?expression?of?IL-17A?(P<0.05).?Conclusion??Th17?cell-mediated?cell?response?is?enhanced,?and?the?gingival?tissues,?CLNs,?and?the?peripheral?blood?are?probably?the?main?locations?of?Th17?cell-mediated?cell?response?during?the?development?of?periodontitis.