预测并验证维甲酸受体激动剂 Ch55 在真皮组织中的抗纤维化作用。

Prediction and Demonstration of Retinoic Acid Receptor Agonist Ch55 as an Antifibrotic Agent in the Dermis.

机构信息

Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.

Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.

出版信息

J Invest Dermatol. 2023 Sep;143(9):1724-1734.e15. doi: 10.1016/j.jid.2023.01.024. Epub 2023 Feb 17.

Abstract

The prevalence of fibrotic diseases and the lack of pharmacologic modalities to effectively treat them impart particular importance to the discovery of novel antifibrotic therapies. The repurposing of drugs with existing mechanisms of action and/or clinical data is a promising approach for the treatment of fibrotic diseases. One paradigm that pervades all fibrotic diseases is the pathological myofibroblast, a collagen-secreting, contractile mesenchymal cell that is responsible for the deposition of fibrotic tissue. In this study, we use a gene expression paradigm characteristic of activated myofibroblasts in combination with the Connectivity Map to select compounds that are predicted to reverse the pathological gene expression signature associated with the myofibroblast and thus contain the potential for use as antifibrotic compounds. We tested a small list of these compounds in a first-pass screen, applying them to fibroblasts, and identified the retinoic acid receptor agonist Ch55 as a potential hit. Further investigation exhibited and elucidated the antifibrotic effects of Ch55 in vitro as well as showing antiscarring activity upon intradermal application in a preclinical rabbit ear hypertrophic scar model. We hope that similar predictions to uncover antiscarring compounds may yield further preclinical and ultimately clinical success.

摘要

纤维化疾病的流行以及缺乏有效治疗它们的药物,使得发现新的抗纤维化治疗方法显得尤为重要。具有现有作用机制和/或临床数据的药物再利用是治疗纤维化疾病的一种很有前途的方法。一个普遍存在于所有纤维化疾病中的范例是病理性肌成纤维细胞,它是一种分泌胶原蛋白、收缩的间充质细胞,负责纤维化组织的沉积。在这项研究中,我们使用一种特征性的基因表达模式,结合连接图谱,选择那些被预测可以逆转与肌成纤维细胞相关的病理性基因表达特征的化合物,从而具有作为抗纤维化化合物的潜力。我们在初次筛选中测试了这些化合物中的一小部分,将它们应用于成纤维细胞,并发现维甲酸受体激动剂 Ch55 是一种潜在的有效物质。进一步的研究表明,Ch55 在体外具有抗纤维化作用,并且在临床前兔耳增生性瘢痕模型中皮内应用时具有抗瘢痕形成活性。我们希望类似的发现抗瘢痕化合物的预测可以带来进一步的临床前和最终的临床成功。

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