Spatial and Single-Cell Transcriptional Profiling Identifies Functionally Distinct Human Dermal Fibroblast Subpopulations.

Spatial and Single-Cell Transcriptional Profiling Identifies Functionally Distinct Human Dermal Fibroblast Subpopulations.
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空间和单细胞转录谱鉴定功能不同的人类真皮成纤维细胞亚群。

DOI:
10.1016/j.jid.2018.01.016
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发表时间:
2018-04
期刊:
The Journal of investigative dermatology
影响因子:
--
通讯作者:
Watt FM
Watt FM
中科院分区:
其他
文献类型:
--
作者:
Philippeos C;Telerman SB;Oulès B;Pisco AO;Shaw TJ;Elgueta R;Lombardi G;Driskell RR;Soldin M;Lynch MD;Watt FM

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以前的研究表明,小鼠真皮是由功能不同的成纤维细胞谱系。为了探索人皮肤成纤维细胞异质性的程度,我们使用了人和小鼠真皮的比较空间转录谱和人真皮成纤维细胞的单细胞转录谱的组合。我们发现,在成人皮肤中至少有四种不同的成纤维细胞群体,并非所有这些群体都是空间隔离的。我们定义了允许其分离的标志物,并表明尽管标志物表达在培养中丢失,但不同的成纤维细胞亚群在Wnt信号传导、对IFN-γ的反应性以及当引入脱细胞真皮时支持人表皮重建的能力方面保留了不同的功能。这些发现表明,特定成纤维细胞亚群的体外扩增或体内消融可能在伤口愈合和以过度纤维化为特征的疾病中具有治疗应用。
Previous studies have shown that mouse dermis is composed of functionally distinct fibroblast lineages. To explore the extent of fibroblast heterogeneity in human skin, we used a combination of comparative spatial transcriptional profiling of human and mouse dermis and single-cell transcriptional profiling of human dermal fibroblasts. We show that there are at least four distinct fibroblast populations in adult human skin, not all of which are spatially segregated. We define markers permitting their isolation and show that although marker expression is lost in culture, different fibroblast subpopulations retain distinct functionality in terms of Wnt signaling, responsiveness to IFN-γ, and ability to support human epidermal reconstitution when introduced into decellularized dermis. These findings suggest that ex vivo expansion or in vivo ablation of specific fibroblast subpopulations may have therapeutic applications in wound healing and diseases characterized by excessive fibrosis.
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