本文主要研究内容
作者范勇(2019)在《中华鳖il21和il22 cDNA的克隆及急性冷胁迫对部分细胞因子表达的影响》一文中研究指出:为了研究急性冷胁迫对中华鳖部分细胞因子表达的影响,本论文首先采用cDNA末端快速扩增技术克隆了中华鳖il21和il22的cDNA并进行了生物信息学分析,其次对il21和il22进行了组织表达模式分析,并从体外以LPS、ConA和poly I:C等免疫刺激剂刺激中华鳖脾脏原代细胞后,检测了il21和il22的表达情况,最后研究了中华鳖在急性冷胁迫以及嗜水气单胞菌胁迫的条件下,脾脏和肠道中的il1β、tnfα、il8、il21、il22和il23a等细胞因子在mRNA水平的应答情况。实验结果如下:1.中华鳖il21和il22 cDNA克隆及生物信息学分析克隆得到的中华鳖il21基因cDNA长为874 bp,ORF长为408 bp,编码135个氨基酸。二级结构主要包括α螺旋、延伸链、无规则卷曲和β转角,三级结构包括信号肽和IL15结构域(IL15家族成员)。系统进化分析表明其与鸟类首先聚类,其次为哺乳类。中华鳖il22 cDNA长度为2263 bp,ORF长度为624 bp,编码207个氨基酸,二级结构也主要包括α螺旋、延伸链、无规则卷曲和β转角,三级结构包括信号肽、跨膜结构域和IL22结构域(IL10家族成员),系统进化分析表明其与其他爬行类首先聚类,其次为鸟类。2.中华鳖il21和il22的组织分布图式及原代免疫细胞经免疫刺激后表达情况研究组织表达图式分析显示il21和il22均在在中华鳖脾脏内有较高表达水平,其中il21在脑及肠道也有较高水平的表达,而il22在脑及肠道表达水平较低。脾脏细胞在ConA刺激后的3h(p=0.0022)、6h(p=0.0022)、12h(p=0.0022)和24h(p=0.0043)会极显著上调il21的表达,且il21在3h的表达最高;脾脏细胞在ConA刺激后的6h(p=0.0043)、12h(p=0.0152)和24h(p=0.043)会极显著下调il22的表达。3.急性冷胁迫对中华鳖部分细胞因子在免疫应答中表达的影响常温嗜水气单胞菌组的肠道il22 mRNA水平呈现先升高后降低的趋势,在24h表达最高,冷胁迫嗜水气单胞菌组的肠道il22 mRNA水平呈现逐渐升高的趋势,在72h表达最高。冷胁迫嗜水气单胞菌组的脾脏il23a mRNA水平呈现先逐渐降低再升高的趋势,在攻毒后的12h表达最高,而在常温组中,il23a mRNA升高后降低,再次升高,并在攻毒后的72h表达最高。在急性冷胁迫早期,肠道和脾脏细胞因子(il1β、tnfα和il8)的表达与常温组相比有所降低,后期肠道的il1β、il8和tnfα在冷胁迫后24h的表达升高,脾脏的il1β和il8在冷胁迫后12h、tnfα在冷胁迫后24h的表达升高。综合以上研究结果,得出如下结论:1.通过cDNA末端快速扩增技术克隆得到了中华鳖il21和il22 cDNA序列,从生物信息学分析可知我们获得序列为中华鳖il21和il22 cDNA,为深入研究中华鳖IL21和IL22及相关通路奠定了基础。2.免疫刺激剂ConA显著增强了il21在脾脏细胞的表达,显著减弱了il22在脾脏细胞的表达。il21和il22都参与ConA介导的T细胞免疫应答,具体功能有待进一步研究。3.急性冷胁迫对中华鳖细胞因子应对嗜水气单胞菌的免疫应答造成影响,总体表现为“应答延迟”。
Abstract
wei le yan jiu ji xing leng xie pai dui zhong hua bie bu fen xi bao yin zi biao da de ying xiang ,ben lun wen shou xian cai yong cDNAmo duan kuai su kuo zeng ji shu ke long le zhong hua bie il21he il22de cDNAbing jin hang le sheng wu xin xi xue fen xi ,ji ci dui il21he il22jin hang le zu zhi biao da mo shi fen xi ,bing cong ti wai yi LPS、ConAhe poly I:Cdeng mian yi ci ji ji ci ji zhong hua bie pi zang yuan dai xi bao hou ,jian ce le il21he il22de biao da qing kuang ,zui hou yan jiu le zhong hua bie zai ji xing leng xie pai yi ji shi shui qi chan bao jun xie pai de tiao jian xia ,pi zang he chang dao zhong de il1β、tnfα、il8、il21、il22he il23adeng xi bao yin zi zai mRNAshui ping de ying da qing kuang 。shi yan jie guo ru xia :1.zhong hua bie il21he il22 cDNAke long ji sheng wu xin xi xue fen xi ke long de dao de zhong hua bie il21ji yin cDNAchang wei 874 bp,ORFchang wei 408 bp,bian ma 135ge an ji suan 。er ji jie gou zhu yao bao gua αluo xuan 、yan shen lian 、mo gui ze juan qu he βzhuai jiao ,san ji jie gou bao gua xin hao tai he IL15jie gou yu (IL15jia zu cheng yuan )。ji tong jin hua fen xi biao ming ji yu diao lei shou xian ju lei ,ji ci wei bu ru lei 。zhong hua bie il22 cDNAchang du wei 2263 bp,ORFchang du wei 624 bp,bian ma 207ge an ji suan ,er ji jie gou ye zhu yao bao gua αluo xuan 、yan shen lian 、mo gui ze juan qu he βzhuai jiao ,san ji jie gou bao gua xin hao tai 、kua mo jie gou yu he IL22jie gou yu (IL10jia zu cheng yuan ),ji tong jin hua fen xi biao ming ji yu ji ta pa hang lei shou xian ju lei ,ji ci wei diao lei 。2.zhong hua bie il21he il22de zu zhi fen bu tu shi ji yuan dai mian yi xi bao jing mian yi ci ji hou biao da qing kuang yan jiu zu zhi biao da tu shi fen xi xian shi il21he il22jun zai zai zhong hua bie pi zang nei you jiao gao biao da shui ping ,ji zhong il21zai nao ji chang dao ye you jiao gao shui ping de biao da ,er il22zai nao ji chang dao biao da shui ping jiao di 。pi zang xi bao zai ConAci ji hou de 3h(p=0.0022)、6h(p=0.0022)、12h(p=0.0022)he 24h(p=0.0043)hui ji xian zhe shang diao il21de biao da ,ju il21zai 3hde biao da zui gao ;pi zang xi bao zai ConAci ji hou de 6h(p=0.0043)、12h(p=0.0152)he 24h(p=0.043)hui ji xian zhe xia diao il22de biao da 。3.ji xing leng xie pai dui zhong hua bie bu fen xi bao yin zi zai mian yi ying da zhong biao da de ying xiang chang wen shi shui qi chan bao jun zu de chang dao il22 mRNAshui ping cheng xian xian sheng gao hou jiang di de qu shi ,zai 24hbiao da zui gao ,leng xie pai shi shui qi chan bao jun zu de chang dao il22 mRNAshui ping cheng xian zhu jian sheng gao de qu shi ,zai 72hbiao da zui gao 。leng xie pai shi shui qi chan bao jun zu de pi zang il23a mRNAshui ping cheng xian xian zhu jian jiang di zai sheng gao de qu shi ,zai gong du hou de 12hbiao da zui gao ,er zai chang wen zu zhong ,il23a mRNAsheng gao hou jiang di ,zai ci sheng gao ,bing zai gong du hou de 72hbiao da zui gao 。zai ji xing leng xie pai zao ji ,chang dao he pi zang xi bao yin zi (il1β、tnfαhe il8)de biao da yu chang wen zu xiang bi you suo jiang di ,hou ji chang dao de il1β、il8he tnfαzai leng xie pai hou 24hde biao da sheng gao ,pi zang de il1βhe il8zai leng xie pai hou 12h、tnfαzai leng xie pai hou 24hde biao da sheng gao 。zeng ge yi shang yan jiu jie guo ,de chu ru xia jie lun :1.tong guo cDNAmo duan kuai su kuo zeng ji shu ke long de dao le zhong hua bie il21he il22 cDNAxu lie ,cong sheng wu xin xi xue fen xi ke zhi wo men huo de xu lie wei zhong hua bie il21he il22 cDNA,wei shen ru yan jiu zhong hua bie IL21he IL22ji xiang guan tong lu dian ding le ji chu 。2.mian yi ci ji ji ConAxian zhe zeng jiang le il21zai pi zang xi bao de biao da ,xian zhe jian ruo le il22zai pi zang xi bao de biao da 。il21he il22dou can yu ConAjie dao de Txi bao mian yi ying da ,ju ti gong neng you dai jin yi bu yan jiu 。3.ji xing leng xie pai dui zhong hua bie xi bao yin zi ying dui shi shui qi chan bao jun de mian yi ying da zao cheng ying xiang ,zong ti biao xian wei “ying da yan chi ”。
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论文作者分别是来自山西大学的范勇,发表于刊物山西大学2019-11-12论文,是一篇关于中华鳖论文,白细胞介素论文,白细胞介素论文,急性冷胁迫论文,免疫刺激剂论文,嗜水气单胞菌论文,山西大学2019-11-12论文的文章。本文可供学术参考使用,各位学者可以免费参考阅读下载,文章观点不代表本站观点,资料来自山西大学2019-11-12论文网站,若本站收录的文献无意侵犯了您的著作版权,请联系我们删除。
标签:中华鳖论文; 白细胞介素论文; 急性冷胁迫论文; 免疫刺激剂论文; 嗜水气单胞菌论文; 山西大学2019-11-12论文;