小分子直接重编程小鼠成纤维细胞为真皮乳头细胞。
Direct Reprograming of Mouse Fibroblasts into Dermal Papilla Cells via Small Molecules.
机构信息
School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China.
出版信息
Int J Mol Sci. 2022 Apr 11;23(8):4213. doi: 10.3390/ijms23084213.
The reprogramming of somatic fibroblasts into alternative cell linages could provide a promising source of cells for regenerative medicine and cell therapy. However, the direct conversion of fibroblasts into other functional cell types is still challenging. In this study, we show that dermal-papilla-cell-like cells (DPC-LCs) can be generated by treating fibroblasts, including L929 mouse fibroblast cell lines and somatic mouse fibroblasts, with small molecules. Based on alkaline phosphatase activity and other molecular markers, different compounds or their combinations are needed for converting the two different fibroblasts into DPC-LCs. Notably, we found that TTNPB alone can efficiently convert primary adult mouse fibroblasts into DPC-LCs. DPC-LCs generated from mouse fibroblasts showed a stronger hair-inducing capacity. Transcriptome analysis reveals that expression of genes associated with a hair-inducing capacity are increased in DPC-LCs. This pharmacological approach to generating functional dermal papilla cells may have many important implications for hair follicle regeneration and hair loss therapy.
体细胞成纤维细胞向其他细胞谱系的重编程可为再生医学和细胞治疗提供有前途的细胞来源。然而,将成纤维细胞直接转化为其他功能细胞类型仍然具有挑战性。在这项研究中,我们表明,通过用小分子处理成纤维细胞,包括 L929 小鼠成纤维细胞系和体节成纤维细胞,可以产生真皮乳头细胞样细胞(DPC-LC)。基于碱性磷酸酶活性和其他分子标志物,需要不同的化合物或其组合将两种不同的成纤维细胞转化为 DPC-LC。值得注意的是,我们发现 TTNPB 单独可以有效地将原代成年小鼠成纤维细胞转化为 DPC-LC。从成纤维细胞产生的 DPC-LC 显示出更强的毛发诱导能力。转录组分析表明,与毛发诱导能力相关的基因在 DPC-LC 中的表达增加。这种生成功能性真皮乳头细胞的药理学方法可能对毛囊再生和脱发治疗具有重要意义。