机器学习和单细胞转录基因组造型揭示了通过THBS2/TGFβ1/P-Smad2/3信号通路调节纤维细胞激活在过度化的痕中
Binyu Song1, Yuhan Zhu1, Ying Zhao2
1Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
International wound journal
|November 21, 2023
概括
这项研究确定了缩性痕 (HS) 中独特的纤维细胞亚群,并开发了一种用于诊断的深度学习模型. 包括THBS2在内的关键基因通过TGFβ1通路与HS形成有关,提供了潜在的生物标志物.
科学领域:
- 皮肤病学 皮肤病学
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
背景情况:
- 缩性痕 (HS) 是一种复杂的炎症性皮肤疾病,其机制尚不清楚.
- 过度的细胞外基质沉积是HS的特征,影响皮肤功能和外观.
研究的目的:
- 在HS中识别出不同的纤维细胞亚群.
- 开发新的生物标志物和HS诊断和预后的预测模型.
- 阐明涉及HS病变发生的分子途径.
主要方法:
- 对正常和HS皮肤样本进行单细胞RNA测序 (scRNA-seq) 分析.
- 权重基因共同表达网络分析 (WGCNA) 和用于基因模块和亚型识别的非负矩阵因子化.
- 机器学习算法,包括卷积神经网络 (CNN),用于基因签名选和验证.
- 定量逆转录-聚合酶连锁反应,西部涂抹,免疫光,CCK8和伤口愈合试验用于功能验证.
主要成果:
- 在HS中使用scRNA-seq.q.识别出明显的纤维细胞亚群.
- 使用hdWGCNA识别了与HS纤维细胞相关的关键基因模块.
- 一个三基因签名和一个CNN模型被开发用于HS诊断和预测,包括免疫细胞透.
- 鉴定出THBS2是一种关键基因,参与HS中的纤维细胞增殖和迁移,通过TGFβ1/P-Smad2/3通路起作用.
结论:
- 独特的纤维细胞亚群与过度缩的痕形成密切相关.
- 开发的CNN模型和确定的关键基因 (例如THBS2) 显示出HS诊断和治疗的生物标志物的潜力.
- 准TGFβ1/P-Smad2/3通路可能为HS提供治疗策略.
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