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低剂量IFNγ重塑增强景观,以增强介质细胞 stromal 细胞激活的潜力

Junxin Lin¹, Dengfeng Ruan², Qiongying Hu³

¹Orthopaedic Center, The First People's Hospital of Wenling (Taizhou University Affiliated Wenling Hospital), School of Medicine, Taizhou University, Taizhou, 318000, Zhejiang, China.

Stem cell research & therapy

|December 12, 2025

概括

低剂量干扰素玛 (IFNγ) 通过改变基因表达和染色质可访问性,有效地重编程介酶体 stromal 细胞 (MSC). 这一发现优化了IFNγ原始化策略,用于增强治疗应用.

科学领域:

免疫学免疫学免疫学
细胞生物学细胞生物学
表观遗传学在表观遗传学中,表观遗传学是指表观遗传学.

背景情况:

干扰素玛 (IFNγ) 起始增强介质细胞 (MSCs) 免疫调节能力.
研究中IFNγ度的变化使MSC反应的理解变得模糊.

研究的目的:

研究MSC对不同IFNγ度的反应.
在不同的IFNγ剂量下阐明MSC的表观遗传调节.

主要方法:

经过0-100 ng/mL IFNγ治疗的MSCs,持续48小时.
RNA测序 (RNA-seq) 和ATAC-seq用于基因表达和染色质可访问性.
对表观遗传调节的整合性分析.

主要成果:

低剂量IFNγ (1 ng/mL) 显著改变了基因表达和染色质可访问性.
IFNγ激活了免疫反应基因和非激活的细胞循环基因.
IFNγ减少了全球增强剂的可访问性,选择性地打开与免疫相关的区域,关闭与扩散相关的区域.

结论:

低剂量的IFNγ通过选择性增强剂改变来调节MSC的转录和表观遗传场景.
提供了对IFNγ启动机制的见解.
告知合理设计,以优化MSC在治疗领域的许可.

关键词:

染色体的可访问性染色体的可访问性增强器增强器增强器基因表达基因表达干扰素玛干扰素是一种干扰素.介质细胞层细胞是介质细胞层细胞.

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