A DNA Damage Response-Independent Mechanism for Telomere Shortening-Elicited Age-Related Pathologies
نویسندگان
چکیده
منابع مشابه
Telomere shortening alters the kinetics of the DNA damage response after ionizing radiation in human cells.
Studies of telomerase-deficient mice and human cell lines have showed that telomere shortening enhances sensitivity to ionizing radiation (IR). The molecular basis for this observation remains unclear. To better understand the connection between telomere shortening and radiation sensitivity, we evaluated components of the DNA damage response pathway in normal human fibroblasts with short and lo...
متن کاملAge-related telomere uncapping is associated with cellular senescence and inflammation independent of telomere shortening in human arteries.
Arterial telomere dysfunction may contribute to chronic arterial inflammation by inducing cellular senescence and subsequent senescence-associated inflammation. Although telomere shortening has been associated with arterial aging in humans, age-related telomere uncapping has not been described in non-cultured human tissues and may have substantial prognostic value. In skeletal muscle feed arter...
متن کاملAge-associated telomere shortening in mouse oocytes
BACKGROUND Oocytes may undergo two types of aging. The first is induced by exposure to an aged ovarian microenvironment before being ovulated, known as 'reproductive or maternal aging', and the second by either a prolonged stay in the oviduct before fertilization or in vitro aging prior to insemination, known as 'postovulatory aging'. However, the molecular mechanisms underlying these aging pro...
متن کاملTelomere shortening in kidneys with age.
The histology and function of the kidney deteriorates with age and age-related diseases, but the mechanisms involved in renal aging are not known. In vitro studies suggest that telomere shortening is important in replicative senescence, and is accelerated by stresses that increase replication. This study explored the relationship between age and telomere length in surgical samples from 24 human...
متن کاملMitochondrial DNA damage as a potential mechanism for age-related macular degeneration.
PURPOSE Increasing evidence suggests a central role for mitochondrial (mt) dysfunction in age-related macular degeneration (AMD). Previous proteomic data from the retinal pigment epithelium (RPE) revealed significant changes to mt proteins, suggesting potential functional defects and damage to mitochondrial DNA (mtDNA) with AMD progression. The present study tests the hypothesis that mtDNA dama...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Innovation in Aging
سال: 2020
ISSN: 2399-5300
DOI: 10.1093/geroni/igaa057.3268