[目的]探讨保元解毒汤对癌症恶病质小鼠血清脂质及白色脂肪组织棕色化的影响.[方法]将4～6周龄无特定病原体(specific pathogen free,SPF)级C57BL/6雄性小鼠分为对照组、模型组、保元解毒汤组和醋酸甲羟孕酮组,连续干预21 d,观察记录小鼠体质量、摄食饮水量和肿瘤体积,以多维质谱"鸟枪"法脂质组学(multidimensional mass spectrometry-based shotgun lipidomics,MDMS-SL)技术测定血清脂质含量,检测小鼠附睾白色脂肪组织和腹股沟白色脂肪组织质量;以苏木精-伊红(hematoxylin-eosin,HE)染色观察白色脂肪组织形态及脂滴面积;实时荧光定量聚合酶链式反应(Real-time quantitative polymerase chain reaction,Real-time PCR)检测白色脂肪组织棕色化相关mRNA表达;免疫印迹法和免疫组化(immunohistochemistry,IHC)染色检测白色脂肪组织解偶联蛋白1(uncoupling protein 1,UCP1)的蛋白表达.[结果]与模型组比较,保元解毒汤组小鼠摄食饮水量改善,一般状态良好,肿瘤增长受到抑制,体质量明显增加(P＜0.05).MDMS-SL技术检测提示,模型组小鼠血清中共有61种脂质分子发生了异常调节(P＜0.05),而保元解毒汤影响了其中30种脂质的异常变化(P＜0.05).与模型组比较,保元解毒汤抑制癌症恶病质小鼠附睾白色脂肪组织和腹股沟白色脂肪组织丢失和脂滴面积减少(P＜0.05),抑制白色脂肪组织棕色化相关基因UCP1、Cidea、Prdm16的mRNA表达(P＜0.05)以及白色脂肪组织棕色化标志蛋白UCP1的蛋白表达(P＜0.05).[结论]保元解毒汤能抑制癌症恶病质小鼠体质量丢失,改善血清脂质异常变化,抑制附睾白色脂肪组织和腹股沟白色脂肪组织棕色化.
Effect of Baoyuan Jiedu Decoction on Interfering Serum Lipids and White Adipose Tissue Browning of Cancer Cachexia Mice
[Objective]To investigate the effect of Baoyuan Jiedu Decoction(BJD)on serum lipids and white adipose tissue browning in cancer cachexia mice.[Methods]The specific pathogen free C57BL/6 mice were divided into normal group,model group,BJD group and megestrol acetate(MA)group.After 21 days of intervention,the changes of body weight,food intake,water consumption and tumor volume of the mice were observed,multidimensional mass spectrometry-based shotgun lipidomics(MDMS-SL)was used to determine the content of serum lipid of mice,white adipose tissue morphology and lipid droplet area were detected by hematoxylin-eosin(HE)staining,the expressions of white adipose tissue browning related genes were detected by Real-time quantitative polymerase chain reaction(Real-time PCR);and the protein expression of uncoupling protein 1(UCP1)was detected by Western blot and immunohistochemistry(IHC)staining.[Results]Compared with model group,the mice in BJD group were generally in good condition,and their food intake,water consumption and weight were increased significantly(P＜0.05),and the volumes of tumors were significantly suppressed(P＜0.05).Compared with normal group,there were 61 kinds of abnormal lipids in the serum of model group,while 30 kinds of lipids were influenced by BJD treatment(P＜0.05).Compared with model group,BJD alleviated the mass loss and lipid droplets(P＜0.05),inhibited the mRNA expression of UCP1,Cidea,Prdm16(P＜0.05)and the protein expression of UCP1(P＜0.05)in epididymal white adipose tissue(eWAT)and inguinal white adipose tissue(iWAT)of cancer cachexia mice.[Conclusion]BJD can inhibit weight loss,relieve the disorder of serum lipid,and inhibit the white adipose tissue browning of iWAT and eWAT of cancer cachexia mice.
cancer cachexiaserum lipidswhite adipose tissue browningBaoyuan Jiedu Decoctionmultidimensional mass spectrometry-based shotgun lipidomicsadipose tissue wasting
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