Page 73 - 《中国药科大学学报》2025年第4期
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学报
                                   Journal of China Pharmaceutical University 2025, 56(4): 469 − 477       469


                 PPARβ      激动剂         ZLY16 促进肌再生及改善                         mdx 小鼠运动能力



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                               郭光耀 ,陆 茜 ,范书生 ,俞沁玮 ,张陆勇 ,江振洲                                 1*
                                                 1
                      1
                     ( 中国药科大学多靶标天然药物全国重点实验室新药筛选与药效评价中心, 江苏省药效研究与评价服务中心,
                                         南京  210009; 广东药科大学新药研发中心, 广州         510006)
                                                   2
               摘 要 为探究一种新型过氧化物酶体增殖物激活受体(peroxisome proliferators-activated receptor,PPAR)β              激动剂
               ZLY16 对杜氏肌营养不良症(Duchenne muscular dystrophy,DMD)的药效作用,本研究连续               6 周对  C57BL/10ScSnJGpt-
               Dmdem3Cd4/Gpt(mdx)小鼠灌胃     30 mg/kg ZLY16,通过行为学实验、组织病理学、血生化分析、免疫荧光和蛋白免疫印迹考
               察小鼠运动能力、血脂含量、骨骼肌损伤和肌再生相关蛋白的表达。构建高脂诱导的成肌细胞分化抑制模型,通过采用尼罗
               红染色、免疫荧光和蛋白免疫印迹检测成肌细胞中脂质含量和成肌细胞分化相关蛋白的表达。研究结果显示,ZLY16 能够增
               加小鼠肌抓力、减少甘油三酯(triglyceride,TG)、总胆固醇(total cholesterol,TC)含量,减轻肌纤维坏死、纤维化和炎性细
               胞浸润,促进肌再生。在体外,ZLY16 通过减少小鼠骨骼肌成肌细胞(murine skeletal muscle myoblast line,C2C12)中脂质蓄
               积来促进成肌细胞分化与肌管融合。这些结果表明,ZLY16 通过减少                    mdx 小鼠体内脂质蓄积,促进肌再生,改善其运动能力。
               关键词 ZLY16;PPARβ    激动剂;杜氏肌营养不良;骨骼肌功能;脂质蓄积;mdx 小鼠
               中图分类号  R965       文献标志码 A             文章编号 1000−5048(2025)04−0469−09
                                                     doi:10.11665/j.issn.1000−5048.2024093001

                引用本文 郭光耀,陆茜,范书生,等. PPARβ      激动剂  ZLY16  促进肌再生及改善    mdx  小鼠运动能力  [J]. 中国药科大学学报,2025,56(4):
                469 − 477.

                Cite this article as: GUO Guangyao, LU Qian, FAN Shusheng, et al. PPARβ agonist ZLY16 promotes muscle regeneration and improves
                motor performance of mdx mice[J]. J China Pharm Univ, 2025, 56(4): 469 − 477.


               PPARβ  agonist  ZLY16  promotes  muscle  regeneration  and  improves  motor
               performance of mdx mice
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               GUO Guangyao , LU Qian , FAN Shusheng , YU Qinwei , ZHANG Luyong , JIANG Zhenzhou 1*
               1 New  Drug  Screening  Center,  State  Key  Laboratory  of  Natural  Medicines/Jiangsu  Provincial  Center  for  Pharmacodynamics
                                                                           2
               Research  and  Evaluation,  China  Pharmaceutical  University,  Nanjing  210009;  Center  for  Drug  Research  and  Development,
               Guangdong Pharmaceutical University, Guangzhou 510006, China
               Abstract    To investigate the therapeutic effects of ZLY16, a novel peroxisome proliferator-activated receptor
               (PPAR) β agonist, on Duchenne muscular dystrophy (DMD), C57BL/10ScSnJGpt-Dmdem3Cd4/Gpt (mdx) mice
               were gavaged with 30 mg/kg ZLY16 for 6 weeks. Expression of proteins associated with muscle regeneration,
               exercise ability, blood lipids content and skeletal muscle damage in mdx mice were investigated by behavioral
               experiments,  histopathology,  blood  biochemical  analysis,  immunofluorescence  and  Western  blot.  A  high-fat-
               induced  myoblast  differentiation  inhibition  model  was  established  to  examine  lipid  content  and  myoblast
               differentiation-related protein expression in myoblasts using Nile Red staining, immunofluorescence and Western
               blot. The results demonstrated that ZLY16 increased muscle grip strength, reduced triglyceride (TG) and total
               cholesterol (TC) levels, attenuated muscle fiber necrosis, fibrosis and inflammatory cell infiltration, and promoted
               muscle  regeneration  in  mdx  mice.  ZLY16  promoted  myoblast  differentiation  and  myotube  fusion  in  vitro  by
               reducing lipid accumulation in murine skeletal muscle myoblast line (C2C12) cells. These findings suggest that


                    收稿日期 2024-09-30  * 通信作者    Tel:025-83271043 E-mail:beaglejiang@cpu.edu.cn
                    基金项目    国家自然科学基金项目(No. 81773827);江苏省实验动物协会科研课题(DWXH202308)
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