Short and Dysfunctional Telomeres Sensitize the Kidneys to Develop Fibrosis
Overview
Affiliations
Accumulation of short telomeres is a hallmark of aging. Mutations in telomerase or telomere-binding proteins lead to telomere shortening or dysfunction and are at the origin of human pathologies known as 'telomere syndromes', which are characterized by loss of the regenerative capacity of tissues and fibrotic pathologies. Here, we generated two mouse models of kidney fibrosis, either by combining telomerase deficiency to induce telomere shortening and a low dose of folic acid, or by conditionally deleting Trf1, a component of the shelterin telomere protective complex, from the kidneys. We find that short telomeres sensitize the kidneys to develop fibrosis in response to folic acid and exacerbate the epithelial-to-mesenchymal transition (EMT) program. Trf1 deletion in kidneys led to fibrosis and EMT activation. Our findings suggest that telomere shortening or dysfunction may contribute to pathological, age-associated renal fibrosis by influencing the EMT program.
The relationship between telomere length and aging-related diseases.
Huang X, Huang L, Lu J, Cheng L, Wu D, Li L Clin Exp Med. 2025; 25(1):72.
PMID: 40044947 PMC: 11882723. DOI: 10.1007/s10238-025-01608-z.
Update of cellular senescence in kidney fibrosis: from mechanism to potential interventions.
Yang L, Ma L, Fu P, Nie J Front Med. 2025; .
PMID: 40011387 DOI: 10.1007/s11684-024-1117-z.
Telomere function and regulation from mouse models to human ageing and disease.
Jones-Weinert C, Mainz L, Karlseder J Nat Rev Mol Cell Biol. 2024; .
PMID: 39614014 DOI: 10.1038/s41580-024-00800-5.
Saraswati S, Martinez P, Serrano R, Mejias D, Grana-Castro O, Alvarez Diaz R Exp Mol Med. 2024; 56(10):2216-2230.
PMID: 39349834 PMC: 11541748. DOI: 10.1038/s12276-024-01318-8.
A cellular identity crisis? Plasticity changes during aging and rejuvenation.
Gorelov R, Hochedlinger K Genes Dev. 2024; 38(17-20):823-842.
PMID: 39293862 PMC: 11535162. DOI: 10.1101/gad.351728.124.