期刊
MECHANISMS OF AGEING AND DEVELOPMENT
卷 197, 期 -, 页码 -出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.mad.2021.111510
关键词
Cellular senescence; Sarcopenia; Myotonic dystrophy type 1; Differential alternative splicing; Laser capture microdissection
资金
- Novartis
Sarcopenia, characterized by progressive muscle mass and function loss in the elderly and chronically ill, is associated with loss of independence, disability, long-term care needs, and overall mortality. The underlying mechanisms of sarcopenia are not fully understood, but differential alternative splicing may play a key role in age- and disease-related gene expression differences.
Progressive loss of muscle mass and function due to muscle fiber atrophy and loss in the elderly and chronically ill is now defined as sarcopenia. It is a major contributor to loss of independence, disability, need of long-term care as well as overall mortality. Sarcopenia is a heterogenous disease and underlying mechanisms are not completely understood. Here, we newly identified and used Tmem158, alongside Cdkn1a, as relevant senescence and denervation markers (SDMs), associated with muscle fiber atrophy. Subsequent application of laser capture microdissection (LCM) and RNA analyses revealed age- and disease-associated differences in gene expression and alternative splicing patterns in a rodent sarcopenia model. Of note, genes exhibiting such differential alternative splicing (DAS) are mainly involved in the contractile function of the muscle. Many of these splicing events are also found in a mouse model for myotonic dystrophy type 1 (DM1), underscoring the premature aging phenotype of this disease. We propose to add differential alternative splicing to the hallmarks of aging.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据