Pregled bibliografske jedinice broj: 409518
Abrupt Telomere Shortening in normal human fibroblasts
Abrupt Telomere Shortening in normal human fibroblasts // Experimental gerontology, 45 (2010), 3; 235-242 doi:10.1016/j.exger.2010.01.009 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 409518 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Abrupt Telomere Shortening in normal human fibroblasts
Autori
Škrobot Vidaček, Nikolina ; Ćukušić, Andrea ; Ivanković, Milena ; Fulgosi, Hrvoje ; Huzak, Miljenko ; Smith, James R. ; Rubelj, Ivica
Izvornik
Experimental gerontology (0531-5565) 45
(2010), 3;
235-242
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
telomeres ; cell senescence ; aging ; telomere shortening ; human fibroblasts
Sažetak
Aging is one of the most basic properties of living organisms. Abundant evidence supports the idea that cell senescence underlies organismal aging in higher mammals. Therefore, examining the molecular mechanisms that control cell senescence is of great interest for biology and medicine. Several discoveries strongly support telomere shortening as the main molecular mechanism that limits the growth of normal cells. Although cultures gradually approach their growth limit, appearance of individual senescent cells is sudden and stochastic. A theoretical model of abrupt telomere shortening has been proposed in order to explain this phenomenon, but until now there was no reliable experimental evidence in support of this idea. Here, we present evidence for the generation of extrachromosomal circular telomeric DNA as a result of abrupt telomere shortening in normal human fibroblasts. This mechanism ensures heterogeneity in growth potential among individual cells, which is crucial for gradual progression of aging process.
Izvorni jezik
Engleski
Znanstvena područja
Biologija
POVEZANOST RADA
Projekti:
098-0982913-2768 - Struktura i funkcija telomera u kontroli staničnog rasta (Rubelj, Ivica, MZOS ) ( CroRIS)
Ustanove:
Prirodoslovno-matematički fakultet, Matematički odjel, Zagreb,
Institut "Ruđer Bošković", Zagreb
Profili:
Ivica Rubelj
(autor)
Andrea Ćukušić Kalajžić
(autor)
Milena Ivanković
(autor)
Miljenko Huzak
(autor)
Nikolina Škrobot Vidaček
(autor)
Hrvoje Fulgosi
(autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
- MEDLINE