溴结构域蛋白4特异性抑制剂JQ-1对人增生性瘢痕的影响
目的 · 探究溴结构域蛋白 4(BRD4)特异性抑制剂 JQ-1 对人增生性瘢痕的影响及其可能机制。方法 · 收集人皮肤增生性瘢 痕标本,原代培养皮肤瘢痕成纤维细胞,并进行传代培养,予以0.1、0.5、1.0、2.0、2.5、12.5 μmol/L 不同浓度的JQ-1 干预48 h, CCK-8 试剂盒、细胞划痕试验和 ELISA 法分别检测 JQ-1 对成纤维细胞增殖、迁移、Ⅰ型胶原蛋白(COL Ⅰ)分泌量及 TGF-β1 的蛋 白水平。36 只裸鼠构建瘢痕动物模型,将临床上获得的瘢痕组织(1.0 cm×1.0 cm×0.5 cm)移植于裸鼠背部皮下。继续饲养 4 周后, 将裸鼠分成 2 组...
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Published in | 上海交通大学学报(医学版) Vol. 37; no. 7; pp. 924 - 929 |
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Main Author | |
Format | Journal Article |
Language | Chinese |
Published |
上海交通大学医学院附属第九人民医院烧伤整形科,上海,201999
2017
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Subjects | |
Online Access | Get full text |
ISSN | 1674-8115 |
DOI | 10.3969/j.issn.1674-8115.2017.07.007 |
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Abstract | 目的 · 探究溴结构域蛋白 4(BRD4)特异性抑制剂 JQ-1 对人增生性瘢痕的影响及其可能机制。方法 · 收集人皮肤增生性瘢 痕标本,原代培养皮肤瘢痕成纤维细胞,并进行传代培养,予以0.1、0.5、1.0、2.0、2.5、12.5 μmol/L 不同浓度的JQ-1 干预48 h, CCK-8 试剂盒、细胞划痕试验和 ELISA 法分别检测 JQ-1 对成纤维细胞增殖、迁移、Ⅰ型胶原蛋白(COL Ⅰ)分泌量及 TGF-β1 的蛋 白水平。36 只裸鼠构建瘢痕动物模型,将临床上获得的瘢痕组织(1.0 cm×1.0 cm×0.5 cm)移植于裸鼠背部皮下。继续饲养 4 周后, 将裸鼠分成 2 组,JQ-1 组和 DMSO 组,分别每日予以 0.5 μmol/L JQ-1 及 0.1% DMSO 的瘢痕内多点注射,1 mL/ 只。天狼猩红染色 和免疫组织化学法分别观察瘢痕中 COL Ⅰ / Ⅲ及 α 平滑肌肌动蛋白(α-SMA)的变化情况。结果 · 细胞实验表明:① 0.5 μmol/L 及 以上浓度 JQ-1 对成纤维细胞增殖有明显抑制作用(均P〈0.01)。② JQ-1 可抑制成纤维细胞的迁移活性(均P〈0.01)。③ JQ-1 可抑 制成纤维细胞 COL Ⅰ的分泌及 TGF-β1 的产生(均 P〈0.01)。动物实验表明:① JQ-1 组 COL Ⅰ / Ⅲ总含量较 DMSO 组显著下降,且 COL Ⅰ / Ⅲ比值下降(均 P〈0.05)。② JQ-1 组 α-SMA 的含量较对照组明显下降(均 P〈0.05)。 结论 · JQ-1 可抑制体外人瘢痕成纤维 细胞的增殖、迁移、COL Ⅰ的分泌及 TGF-β1 的产生;其对裸鼠体内的人瘢痕组织中 COL Ⅰ / Ⅲ的分泌及成纤维细胞向肌成纤维细胞 的转化亦有抑制作用。 |
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AbstractList | R619+.9; 目的·探究溴结构域蛋白4 (BRD4)特异性抑制剂JQ-1对人增生性瘢痕的影响及其可能机制.方法·收集人皮肤增生性瘢痕标本,原代培养皮肤瘢痕成纤维细胞,并进行传代培养,予以0.1、0.5、1.0、2.0、2.5、12.5 μmol/L不同浓度的JQ-1干预48 h,CCK-8试剂盒、细胞划痕试验和ELISA法分别检测JQ-1对成纤维细胞增殖、迁移、Ⅰ型胶原蛋白(COL Ⅰ)分泌量及TGF-β1的蛋白水平.36只裸鼠构建瘢痕动物模型,将临床上获得的瘢痕组织(1.0 cm×1.0 cm×0.5 cm)移植于裸鼠背部皮下.继续饲养4周后,将裸鼠分成2组,JQ-1组和DMSO组,分别每日予以0.5 μ mol/L JQ-1及0.1% DMSO的瘢痕内多点注射,1mL/只.天狼猩红染色和免疫组织化学法分别观察瘢痕中COL Ⅰ/Ⅲ及α平滑肌肌动蛋白(α-SMA)的变化情况.结果·细胞实验表明:①0.5 μmol/L及以上浓度JQ-1对成纤维细胞增殖有明显抑制作用(均P<0.01).②JQ-1可抑制成纤维细胞的迁移活性(均P<0.01).③JQ-1可抑制成纤维细胞COL Ⅰ的分泌及TGF-β1的产生(均P<0.01).动物实验表明:①JQ-1组COL Ⅰ/Ⅲ总含量较DMSO组显著下降,且COL Ⅰ/Ⅲ比值下降(均P<0.05).②JQ-1组α-SMA的含量较对照组明显下降(均P<0.05).结论·JQ-1可抑制体外人瘢痕成纤维细胞的增殖、迁移、COL Ⅰ的分泌及TGF-β1的产生;其对裸鼠体内的人瘢痕组织中COL Ⅰ/Ⅲ的分泌及成纤维细胞向肌成纤维细胞的转化亦有抑制作用. 目的 · 探究溴结构域蛋白 4(BRD4)特异性抑制剂 JQ-1 对人增生性瘢痕的影响及其可能机制。方法 · 收集人皮肤增生性瘢 痕标本,原代培养皮肤瘢痕成纤维细胞,并进行传代培养,予以0.1、0.5、1.0、2.0、2.5、12.5 μmol/L 不同浓度的JQ-1 干预48 h, CCK-8 试剂盒、细胞划痕试验和 ELISA 法分别检测 JQ-1 对成纤维细胞增殖、迁移、Ⅰ型胶原蛋白(COL Ⅰ)分泌量及 TGF-β1 的蛋 白水平。36 只裸鼠构建瘢痕动物模型,将临床上获得的瘢痕组织(1.0 cm×1.0 cm×0.5 cm)移植于裸鼠背部皮下。继续饲养 4 周后, 将裸鼠分成 2 组,JQ-1 组和 DMSO 组,分别每日予以 0.5 μmol/L JQ-1 及 0.1% DMSO 的瘢痕内多点注射,1 mL/ 只。天狼猩红染色 和免疫组织化学法分别观察瘢痕中 COL Ⅰ / Ⅲ及 α 平滑肌肌动蛋白(α-SMA)的变化情况。结果 · 细胞实验表明:① 0.5 μmol/L 及 以上浓度 JQ-1 对成纤维细胞增殖有明显抑制作用(均P〈0.01)。② JQ-1 可抑制成纤维细胞的迁移活性(均P〈0.01)。③ JQ-1 可抑 制成纤维细胞 COL Ⅰ的分泌及 TGF-β1 的产生(均 P〈0.01)。动物实验表明:① JQ-1 组 COL Ⅰ / Ⅲ总含量较 DMSO 组显著下降,且 COL Ⅰ / Ⅲ比值下降(均 P〈0.05)。② JQ-1 组 α-SMA 的含量较对照组明显下降(均 P〈0.05)。 结论 · JQ-1 可抑制体外人瘢痕成纤维 细胞的增殖、迁移、COL Ⅰ的分泌及 TGF-β1 的产生;其对裸鼠体内的人瘢痕组织中 COL Ⅰ / Ⅲ的分泌及成纤维细胞向肌成纤维细胞 的转化亦有抑制作用。 |
Abstract_FL | Objective·To investigate effect and the possible molecular mechanism of JQ1,a specific inhibitor of bromodomain containing protein 4,on human hypertropic scar.Methods·Primary fibroblasts were isolated from human hypertrophic scars and treated with JQ-1 of different concentrations (0.1,0.5,1.0,2.0,2.5,and 12.5μmol/L) for 48 h.Then CCK-8 kit and wound healing assay were used to measure proliferation and migration of the fibroblasts.ELISA was adopted to detect the levels of collagen type Ⅰ (COL Ⅰ) and TGF-β1 after JQ-1 treatment for 24 h.Thirty-six nude mice were used for hypertrophic scar models.Human hypertrophic scars (1.0 cm× 1.0 cm×0.5 cm) were grafted subcutaneously at the backs of nude mice to establish scar animal models.After 4 weeks,the nude mice were averagely divided into two groups,i.e.JQ-1 group and DMSO group,which were respectively injected with 0.5 μmol/L JQ-1 and 0.1% DMSO each mouse every day.COL Ⅰ / Ⅲ and α-smooth muscle actin (α-SMA) were examined by immunohistochemical method and sirius red staining.Results·Cell experiments showed that JQ-1 with the concentration of 0.5 μmol/L and above significantly inhibited proliferation of fibroblasts (P<0.01).JQ-1 inhibited migration of fibroblast (P<0.01).JQ-1 inhibited secretion of COL Ⅰ and TGF-β1 of fibroblasts (P<0.01).Animal experiments showed that concentration and proportion of COL Ⅰ / Ⅲ in JQ-1 group decreased compared to DMSO group (P<0.05).α-SMA protein expression in JQ-1 group also decreased (P<0.05).Conclusion·JQ-1 can inhibit proliferation,migration,secretion of COL Ⅰ,and production of TGF-β1 of human sear fibroblasts in vitro;it can also inhibit secretion of COL Ⅰ /Ⅲ and fibroblast-myofibroblast differentiation in the human hypertrophic scars in nude mice. |
Author | 胡艳阁 郝健 张迪 杨川峰 宋晨璐 方勇 |
AuthorAffiliation | 上海交通大学医学院附属第九人民医院烧伤整形科,上海201999 |
AuthorAffiliation_xml | – name: 上海交通大学医学院附属第九人民医院烧伤整形科,上海,201999 |
Author_FL | HAO Jian ZHANG Di HU Yan-ge SONG Chen-lu YANG Chuan-feng FANG Yong |
Author_FL_xml | – sequence: 1 fullname: HU Yan-ge – sequence: 2 fullname: HAO Jian – sequence: 3 fullname: ZHANG Di – sequence: 4 fullname: YANG Chuan-feng – sequence: 5 fullname: SONG Chen-lu – sequence: 6 fullname: FANG Yong |
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DocumentTitleAlternate | Effects of bromodomain containing protein 4 specific inhibitor JQ-1 on human hypertropic scar |
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Keywords | bromodomain containing protein 4 增生性瘢痕 hypertrophic scar scar fibroblast JQ-1 瘢痕成纤维细胞 溴结构域蛋白4 |
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Notes | Objective · To investigate effect and the possible molecular mechanism of JQ1, a specific inhibitor of bromodomain containing protein 4, on human hypertropic scar. Methods · Primary fibroblasts were isolated from human hypertrophic scars and treated with JQ-1 of different concentrations (0.1, 0.5, 1.0, 2.0, 2.5, and 12.5 μmol/L) for 48 h. Then CCK-8 kit and wound healing assay were used to measure proliferation and migration of the fibroblasts. ELISA was adopted to detect the levels of collagen type Ⅰ (COL Ⅰ) and TGF-β1 after JQ-1 treatment for 24 h. Thirty-six nude mice were used for hypertrophic scar models. Human hypertrophic scars (1.0 cm×1.0 cm×0.5 cm) were grafted subcutaneously at the backs of nude mice to establish scar animal models. After 4 weeks, the nude mice were averagely divided into two groups, i.e. JQ-1 group and DMSO group, which were respectively injected with 0.5 μmol/L JQ-1 and 0.1% DMSO each mouse every day. COL Ⅰ / Ⅲ and α-smooth muscle actin (α-SMA) were examined by immunohistochemical |
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Snippet | 目的 · 探究溴结构域蛋白 4(BRD4)特异性抑制剂 JQ-1 对人增生性瘢痕的影响及其可能机制。方法 · 收集人皮肤增生性瘢 痕标本,原代培养皮肤瘢痕成纤维细胞,并进行传代培养,予以0.1、0.5、1.0、2.0、2.5、12.5 μmol/L 不同浓度的JQ-1 干预48 h, CCK-8... R619+.9; 目的·探究溴结构域蛋白4 (BRD4)特异性抑制剂JQ-1对人增生性瘢痕的影响及其可能机制.方法·收集人皮肤增生性瘢痕标本,原代培养皮肤瘢痕成纤维细胞,并进行传代培养,予以0.1、0.5、1.0、2.0、2.5、12.5 μmol/L不同浓度的JQ-1干预48... |
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SubjectTerms | JQ-1 增生性瘢痕 溴结构域蛋白4 瘢痕成纤维细胞 |
Title | 溴结构域蛋白4特异性抑制剂JQ-1对人增生性瘢痕的影响 |
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