解整合素-金属蛋白酶8在小鼠药物性肝损伤中的表达  

Expression of a disintegrin and metalloprotease 8 during the drug-induced liver in mice

作　　者：李三强[1] 崔旭红[1] 杨兰泽[1] 马曌[1] 韩红梅[1] 

机构地区：[1]河南科技大学医学院肝脏损伤与修复分子医学重点实验室,河南洛阳471003

出　　处：《中国临床药理学杂志》2014年第10期926-928,共3页The Chinese Journal of Clinical Pharmacology

基　　金：国家自然科学基金资助项目(81201558);河南省高校科技创新人才支持计划基金资助项目(13HASTIT025);河南省重点科技攻关基金资助项目(122102310030);河南省教育厅科学技术研究基金重点资助项目(12B310003)

摘　　要：目的研究对乙酰氨基酚(AAP)诱导的小鼠药物性肝损伤过程中解整合素-金属蛋白酶8(ADAM8)表达的动态变化。方法健康雄性小鼠分别腹腔注射550 mg·kg-1AAP溶液,制备小鼠药物性肝损伤模型,在注射后6,24,42,72 h,分别眼球采血,分离血清;同时分离正常组小鼠血清,检测2组血清天冬氨酸氨基转移酶(AST)和丙氨酸氨基转移酶(ALT)活性;用蛋白印迹法和RTPCR法检测正常组小鼠和不同时间点的模型小鼠肝中ADAM8的表达变化。结果小鼠注射AAP后,血清中AST和ALT酶活呈先上升后下降的趋势。注射AAP6 h后,ADAM8的表达量显著上升(P<0.05),24 h达到最高峰(P<0.05),然后逐渐降低;至72 h又恢复到接近正常水平。结论 ADAM8在AAP诱导的小鼠药物性肝损伤过程中表达呈显著变化,可能起到促进肝损伤的重要作用。Objective To study the expressed dynamic change and roles of a disintegrin and metalloprotease 8 （ADAM8） during drug -induced liver injury induced by acetaminophen （AAP）.Methods Mice were randomly divided into two groups：normal group and experimental group. The mice in experimental group were respectively drawn blood by remo -ving the eyeballs and serum was separated to detect the activity of aspar -tate aminotransferase （AST） and alanine aminotranferease （ALT） at 6, 24, 42 and 72 h after intraperitoneal injection with 550 mg· kg^-1 AAP. The activity of serum AST and ALT in the mice of normal group was also detected.The expression of hepatic ADAM8 at protein and mRNA levels was detected by Western blot and RT -PCR in the mice of normal group and experimental group at different time points after AAP injection . Results Serum AST and ALT activity was first increased and then decreased after AAP injection in the mice.The expression of ADAM8 were significantly up -regulated （P 〈0.05） at 6 h, reached peak level at 24 h （P 〈0.05）.Then gradually down -regulated and recovered near the normal level at 72 h after AAP injection.Conclusion ADAM8 were remarkably differently expressed during drug -induced liver injury induced by AAP, which may play an important role in promoting liver damage during drug -induced liver injury induced by AAP.

关 键 词：对乙酰氨基酚 解整合素-金属蛋白酶8 药物性肝损伤 蛋白表达 

分 类 号：R575[医药卫生—消化系统] R969.3[医药卫生—内科学]