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重庆医科大学附属儿童医院烧伤整形外科,重庆 400014
董小波,Email:dongxiaobo8023@163.com,研究方向:先天性唇腭裂的发病机制。
邱 林,Email:qiulin118@126.com。
收稿:2024-01-21,
修回:2024-07-18,
纸质出版:2025-12-28
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董小波,陈强,杜皓娟等.2,3,7,8-四氯二苯并二噁英通过miR-214-3p抑制间充质细胞的增殖和迁移导致腭裂的形成[J].重庆医科大学学报,2025,50(12):1717-1722.
Dong Xiaobo,Chen Qiang,Du Haojuan,et al.2,3,7,8-Tetrachlorodibenzo-p-dioxin induces cleft palate through miR-214-3p suppressing mesenchymal cell proliferation and migration[J].Journal of Chongqing Medical University,2025,50(12):1717-1722.
董小波,陈强,杜皓娟等.2,3,7,8-四氯二苯并二噁英通过miR-214-3p抑制间充质细胞的增殖和迁移导致腭裂的形成[J].重庆医科大学学报,2025,50(12):1717-1722. DOI: 10.13406/j.cnki.cyxb.003986.
Dong Xiaobo,Chen Qiang,Du Haojuan,et al.2,3,7,8-Tetrachlorodibenzo-p-dioxin induces cleft palate through miR-214-3p suppressing mesenchymal cell proliferation and migration[J].Journal of Chongqing Medical University,2025,50(12):1717-1722. DOI: 10.13406/j.cnki.cyxb.003986.
目的
2
探讨 miRNA-214-3p在2,3,7,8-四氯二苯并-对噁英(2,3,7,8-tetrachlorodibenzo-p-dioxin,TCDD)导致的腭裂中的作用。
方法
2
用64 μg/kg TCDD对C57孕鼠灌胃,获得腭裂模型。利用miRNA测序和实时荧光定量聚合酶链反应(quantitative real-time polymerase chain reaction,qRT-PCR)检测腭间充质细胞(mouse embryonic palatal mesenchymal,MEPM)中miR-214-3p表达。通过CCK8、5-乙炔基-2’脱氧尿嘧啶核苷(5-ethynyl-2’-deoxyuridine,EdU)、Transwell 以及划痕实验评估TCDD通过miRNA-214-3p对MEPM增殖和迁移的影响。
结果
2
怀孕10.5 d的C57小鼠暴露于TCDD(64 μg/kg)后,实验组共有32只胎鼠出现腭裂(32/32),腭裂发生率达到100%。而对照组则没有出现任何腭裂(0/28)。在TCDD干预组中,miR-214-3p、miR-296-5p和miR-33-5p等miRNA的表达呈现明显上调,而miR-92a-3p、miR-126a-3p和miR-411-5p等miRNA的表达则明显下调。qRT-PCR验证了miR-214-3p的表达差异明显。同时,miR-214-3p抑制剂能部分恢复被TCDD干预的MEPM的增殖和迁移能力。
结论
2
TCDD通过miR-214-3p抑制了MEPM的增殖和迁移。miR-214-3p在TCDD诱导的小鼠裂中可能起着关键作用。
Objective
2
To investigate the role of miRNA(miR)-214-3p in a cleft palate induced by 2,3,7,8-tetrachlorodibenzo-p-dioxin(TCDD).
Methods
2
We established a cleft palate model by intragastrically administering TCDD(64 μg/kg) to pregnant C57 mice. The expression of miR-214-3p in mouse embryonic palatal mesenchymal(MEPM) cells was measured by miRNA sequencing and quantitative real-time polymerase chain reaction(qRT-PCR). We examined the effects of TCDD via miR-214-3p on the proliferation and migration of MEPM cells by using Cell Counting Kit-8,5-ethynyl-2’-deoxyuridine assay,transwell assay,and wound healing assay.
Results
2
Exposing C57 mice at 10.5 days of gestation to TCDD(64 μg/kg),32 of 32 fetuses(100%) in the experimental group developed a cleft palate. No cleft palate occurred in the control group(0/28). The TCDD group showed significantly up-regulated expression of miR-214-3p,miR-296-5p,and miR-33-5p and significantly down-regulated expression of miR-92a-3p,miR-126a-3p,and miR-411-5p. The qRT-PCR results verified miR-214-3p as significantly differentially expressed. The miR-214-3p inhibitor partially restored the proliferation and migration abilities of MEPM cells exposed to TCDD.
Conclusions
2
TCDD can suppress the proliferation and migration of MEPM cells through miR-214-3p,indicating that miR-214-3p may play a crucial role in TCDD-induced cleft palate in mice.
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