2010
SUV39h- and A-type Lamin-Dependent Telomere Nuclear Rearrangement
UHLÍŘOVÁ, Radka; Andrea HARNIČAROVÁ; Gabriela GALIOVÁ; Soňa LEGARTOVÁ; Pavel MATULA et al.Základní údaje
Originální název
SUV39h- and A-type Lamin-Dependent Telomere Nuclear Rearrangement
Autoři
UHLÍŘOVÁ, Radka; Andrea HARNIČAROVÁ; Gabriela GALIOVÁ; Soňa LEGARTOVÁ ORCID; Pavel MATULA; Miloslava FOJTOVÁ ORCID; Miroslav VAŘECHA; Jana AMRICHOVÁ; Jan VONDRÁČEK; Stanislav KOZUBEK a Eva BÁRTOVÁ
Vydání
Journal of Cellular Biochemistry, 2010, 0730-2312
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
Genetika a molekulární biologie
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.122
Kód RIV
RIV/00216224:14330/10:00051236
Organizační jednotka
Fakulta informatiky
UT WoS
000276418900010
Klíčová slova anglicky
SUV39h;histone methyltransferases;telomeres;PML bodies;LMNA gene;epigenetics;chromatin structure;nuclear radial distributions;image analysis
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 20. 4. 2012 09:41, RNDr. Pavel Šmerk, Ph.D.
Anotace
V originále
Telomeres are specialized chromatin structures that are situated at the end of linear chromosomes and play an important role in cell senescence and immortalization. Here, we investigated whether changes in histone signature influence the nuclear arrangement and positioning of telomeres. Analysis of mouse embryonic fibroblasts revealed that telomeres were organized into specific clusters that partially associated with centromeric clusters. This nuclear arrangement was influenced by deficiency of the histone methyltransferase SUV39h, LMNA deficiency, and the histone deacetylase inhibitor Trichostatin A (TSA). Similarly, nuclear radial distributions of telomeric clusters were preferentially influenced by TSA, which caused relocation of telomeres closer to the nuclear center. Telomeres also co-localized with promyelocytic leukemia bodies. This association was increased by SUV39h deficiency and decreased by LMNA deficiency. These differences could be explained by differing levels of the telomerase subunit, TERT, in SUV39h- and LMNA-deficient fibroblasts. Taken together, our data show that SUV39h and A-type lamins likely play a key role in telomere maintenance and telomere nuclear architecture.
Návaznosti
| LC06027, projekt VaV |
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| LC535, projekt VaV |
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| MSM0021622415, záměr |
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| 2B06052, projekt VaV |
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