时间标签：数据日期 2026-11-05 · 生成时间 2026-11-05 05:30（Asia/Shanghai）｜ 检索窗口 PubMed edat 2026/11/02 – 2026/11/06 ｜ 情报发生日期 2026-11-05
研究问题
Nevertheless, it remains inconclusive whether reciprocal interactions exist between cytoskeletal mechanics and cellular senescence-associated phenotypes during photoaging.；To investigate whether perturbation of cytoskeletal mechanics recapitulates senescence-related mechanical and molecular alterations, young HDFs were treated with LAT-A, a potent inhibitor of F-actin polymerization.；LAT‑A significantly alters these protein levels, which nearly return to control levels after drug withdrawal.3.4Maintenance of F-actin assembly attenuates the establishment of UVB-induced senescence-associated phenotypesTo further investigate whether protecting the F-actin cytoskeleton confers anti-senescence effects, UVB-exposed HDFs were pretreated with the F-actin-stabilizing agent JASP (Supplementary Figures S5A, B).
方法
We first established a UVB-induced senescence-like model in HDFs.；Cells were cultured in a humidified 5% CO2 incubator at 37 °C, with the culture medium refreshed every day.；Upon reaching approximately 90% confluence, cells were either passaged or seeded into plates.
核心结论
These findings suggest that cytoskeletal mechanical dysregulation may contribute to the progression of cellular senescence.；Treatment of young HDFs with JASP demonstrates that JASP exhibits no cytotoxicity in young, normal HDFs at the concentration used in this experiment.；Panels J–K present western blots and mRNA data demonstrating enhanced MMP1 expression under UVB treatment relative to control.2.3Cell metabolic activity and proliferation assaysHDFs were seeded into 24-well plates at a density of 2 × 104 cells per well.
局限
However, dynamic alterations in cellular biophysical phenotypes and the regulatory principles that govern this process remain poorly understood.Recently, the interdisciplinary field bridging cell biology and biophysics has garnered increasing attention, with emerging studies focusing on mechanical alterations in dermal fibroblasts during skin aging.；However, the interplay between cellular senescence-associated phenotypes and mechanical properties has long been underexplored in the context of skin photoaging.；Although Latrunculin A and Jasplakinolide can perturb actin dynamics and allow preliminary evaluation of the overall contribution of actin to cellular mechanics, this pharmacological approach has notable limitations.
对本项目的价值
中高价值：属「衰老细胞清除 / SASP 轴」方向；细胞衰老 / senolytics / SASP栏目可用作本项目文献库与综述素材。 ｜ 价值分 3.0/5（★★★☆☆）
全文来源
PubMed PMC JATS（正文 46,973 字符，题名指纹 0.93，已过 PubMed PMCID 官方关联 + 题名指纹 + 正文长度归属校验）
原文题录
- 中文题名：解析人皮肤成纤维细胞中细胞骨架力学与衰老相关表型的双向关联
- 英文标题：Dissecting the reciprocal association between cytoskeletal mechanics and senescence-associated phenotypes in human dermal fibroblasts.
- 期刊与标识：Frontiers in physiology · PMID 42978591 · DOI 10.3389/fphys.2026.1882078 · PMC PMC13727495