The Single-Cell Triaptosis Regulatory Pattern in the Immune Microenvironment of Keloids.

IF 2.2 4区 医学 Q3 DERMATOLOGY
Clinical, Cosmetic and Investigational Dermatology Pub Date : 2025-09-24 eCollection Date: 2025-01-01 DOI:10.2147/CCID.S536776
Jiaheng Xie, Songyun Zhao, Dan Wu, Yeqi Feng, Chenfeng Ma, Wei Yan, Ming Wang
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Abstract

Introduction: Keloids are a complex pathological condition of the skin characterized by abnormal proliferation of fibrous tissue and excessive accumulation of extracellular matrix, typically following inflammation after skin injury. Understanding the regulatory mechanisms of immune cells involved in keloid formation is essential for the development of effective treatments.

Methods: This study integrated publicly available single-cell RNA sequencing (scRNA-seq) data with our own keloid scRNA-seq samples to investigate the role of triaptosis in shaping the immune microenvironment of keloids. We analyzed the composition and functional status of fibroblast and immune cell subpopulations.

Results: Immune cells in keloids, especially CD8+ T cells and macrophages, showed significant heterogeneity under the influence of triaptosis regulatory patterns. These triaptosis-associated immune cell clusters exhibited distinct signaling interference compared to mesenchymal fibroblasts and contributed to keloid development. Furthermore, ELMO2 was identified as a key gene with a potential causal relationship to keloids using Summary-data-based Mendelian Randomization and validated through immunofluorescence staining.

Conclusion: Our findings reveal the complexity of cell-cell interactions in the keloid immune microenvironment and highlight triaptosis as a potential regulatory mechanism in keloid pathogenesis. The identification of ELMO2 as a key factor offers a promising therapeutic target. This study lays a foundation for developing novel therapeutic strategies and encourages future investigations into the clinical application of triaptosis-related interventions for keloid treatment.

瘢痕疙瘩免疫微环境中的单细胞三角凋亡调控模式。
瘢痕疙瘩是一种复杂的皮肤病理状况,以纤维组织的异常增生和细胞外基质的过度积累为特征,通常发生在皮肤损伤后的炎症之后。了解免疫细胞参与瘢痕疙瘩形成的调节机制对于开发有效的治疗方法至关重要。方法:本研究将公开获得的单细胞RNA测序(scRNA-seq)数据与我们自己的瘢痕疙瘩scRNA-seq样本结合起来,研究triaptosis在瘢痕疙瘩免疫微环境形成中的作用。我们分析了成纤维细胞和免疫细胞亚群的组成和功能状态。结果:瘢痕疙瘩的免疫细胞,特别是CD8+ T细胞和巨噬细胞,在triaptosis调节模式的影响下,表现出明显的异质性。与间充质成纤维细胞相比,这些与三角脱落相关的免疫细胞簇表现出明显的信号干扰,并有助于瘢痕疙瘩的发展。此外,使用基于summary -data的孟德尔随机化方法确定ELMO2是与瘢痕疙瘩存在潜在因果关系的关键基因,并通过免疫荧光染色进行验证。结论:我们的研究结果揭示了瘢痕疙瘩免疫微环境中细胞-细胞相互作用的复杂性,并突出了triaptosis作为瘢痕疙瘩发病的潜在调节机制。ELMO2作为关键因子的鉴定提供了一个有希望的治疗靶点。本研究为开发新的治疗策略奠定了基础,并鼓励了未来对瘢痕疙瘩治疗中triap下垂相关干预措施的临床应用的研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
2.80
自引率
4.30%
发文量
353
审稿时长
16 weeks
期刊介绍: Clinical, Cosmetic and Investigational Dermatology is an international, peer-reviewed, open access journal that focuses on the latest clinical and experimental research in all aspects of skin disease and cosmetic interventions. Normal and pathological processes in skin development and aging, their modification and treatment, as well as basic research into histology of dermal and dermal structures that provide clinical insights and potential treatment options are key topics for the journal. Patient satisfaction, preference, quality of life, compliance, persistence and their role in developing new management options to optimize outcomes for target conditions constitute major areas of interest. The journal is characterized by the rapid reporting of clinical studies, reviews and original research in skin research and skin care. All areas of dermatology will be covered; contributions will be welcomed from all clinicians and basic science researchers globally.
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