This commentary analyzes the effect of Exendin-4 on wound healing.After introducing information about the drug,considerations are added regarding its impact on this process.To accelerate wound healing,the drug’s comb...This commentary analyzes the effect of Exendin-4 on wound healing.After introducing information about the drug,considerations are added regarding its impact on this process.To accelerate wound healing,the drug’s combined effects with stem cells and other factors are examined,aiming to enhance and thus accelerate the process.Finally,the clinical potential of this drug’s effect is considered,not only for wound healing but also in other diseases.Therefore,reading this commentary may provide research perspectives that can stimulate the future reader’s thinking.展开更多
目的 构建 、鉴定自身互补双链DNA的腺相关病毒(scAAV)重组载体,使其分泌表达Exendin-4,检测其转导效率并观察在糖尿病大鼠模型中的治疗作用。 方法 应用基因工程方法改建穿梭质粒pSSHG-CMV,插入外源性基因Exendin-...目的 构建 、鉴定自身互补双链DNA的腺相关病毒(scAAV)重组载体,使其分泌表达Exendin-4,检测其转导效率并观察在糖尿病大鼠模型中的治疗作用。 方法 应用基因工程方法改建穿梭质粒pSSHG-CMV,插入外源性基因Exendin-4,构建重组scAAV载体,感染HEK293细胞,ELISA检测转染NIH3T3细胞上清Exendin-4滴度,链佐霉素诱导20只6周龄体质量180~220 g SD成年雄性大鼠为糖尿病鼠模型,逆向注射重组scAAV于糖尿病大鼠颌下腺,检测其血糖及胰岛素分泌水平。 结果 重组scpSSHG/exn4可有效包装和复制,病毒滴度为2.5×1011pfu/mL,转染细胞上清分泌Exendin-4浓度可达到4.53 ng/mL,scAAV治疗组血糖浓度在2、4周及8周均低于对照组[分别为(639.17±27.89)vs (396.00±34.00),(657.02±39.87) vs (315.62±42.56),(215.6±24.7) vs (458.6±19.7) mg/dL],胰岛素浓度均高于对照组[分别为(156.8±24.5) vs (535.9±35.6),(236.5±12.3) vs (495.3±18.6),(620.43±46.90) vs (381.56±21.78) pg/mL],二者比较有显著统计学差异(P〈0.05)。 结论 成功构建重组双链腺伴病毒scAAV-Ex-4,具有高效转导能力,对糖尿病大鼠模型具有控制血糖及增加胰岛素分泌作用。展开更多
文摘This commentary analyzes the effect of Exendin-4 on wound healing.After introducing information about the drug,considerations are added regarding its impact on this process.To accelerate wound healing,the drug’s combined effects with stem cells and other factors are examined,aiming to enhance and thus accelerate the process.Finally,the clinical potential of this drug’s effect is considered,not only for wound healing but also in other diseases.Therefore,reading this commentary may provide research perspectives that can stimulate the future reader’s thinking.
文摘目的 构建 、鉴定自身互补双链DNA的腺相关病毒(scAAV)重组载体,使其分泌表达Exendin-4,检测其转导效率并观察在糖尿病大鼠模型中的治疗作用。 方法 应用基因工程方法改建穿梭质粒pSSHG-CMV,插入外源性基因Exendin-4,构建重组scAAV载体,感染HEK293细胞,ELISA检测转染NIH3T3细胞上清Exendin-4滴度,链佐霉素诱导20只6周龄体质量180~220 g SD成年雄性大鼠为糖尿病鼠模型,逆向注射重组scAAV于糖尿病大鼠颌下腺,检测其血糖及胰岛素分泌水平。 结果 重组scpSSHG/exn4可有效包装和复制,病毒滴度为2.5×1011pfu/mL,转染细胞上清分泌Exendin-4浓度可达到4.53 ng/mL,scAAV治疗组血糖浓度在2、4周及8周均低于对照组[分别为(639.17±27.89)vs (396.00±34.00),(657.02±39.87) vs (315.62±42.56),(215.6±24.7) vs (458.6±19.7) mg/dL],胰岛素浓度均高于对照组[分别为(156.8±24.5) vs (535.9±35.6),(236.5±12.3) vs (495.3±18.6),(620.43±46.90) vs (381.56±21.78) pg/mL],二者比较有显著统计学差异(P〈0.05)。 结论 成功构建重组双链腺伴病毒scAAV-Ex-4,具有高效转导能力,对糖尿病大鼠模型具有控制血糖及增加胰岛素分泌作用。