2012
Arrangement of nuclear structures is not transmitted through mitosis but is identical in sister cells
ORLOVA, Darya Yurevna, Lenka STIXOVÁ, Stanislav KOZUBEK, Hinco GIERMAN, Gabriela ŠUSTÁČKOVÁ et. al.Základní údaje
Originální název
Arrangement of nuclear structures is not transmitted through mitosis but is identical in sister cells
Autoři
ORLOVA, Darya Yurevna (643 Rusko), Lenka STIXOVÁ (203 Česká republika), Stanislav KOZUBEK (203 Česká republika), Hinco GIERMAN (840 Spojené státy), Gabriela ŠUSTÁČKOVÁ (203 Česká republika), Andrei CHERNYSHEV (643 Rusko), Ruslan MEDVEDEV (643 Rusko), Soňa LEGARTOVÁ (703 Slovensko), Rogier VERSTEEG (528 Nizozemské království), Pavel MATULA (203 Česká republika, garant, domácí), Roman STOKLASA (703 Slovensko, domácí) a Eva BÁRTOVÁ (203 Česká republika)
Vydání
Journal of Cellular Biochemistry, 2012, 0730-2312
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
Genetika a molekulární biologie
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.062
Kód RIV
RIV/00216224:14330/12:00057413
Organizační jednotka
Fakulta informatiky
UT WoS
000308927200002
Klíčová slova česky
histones; chromatin; HP1 protein; photoconversion; Dendra2; Cajal bodies
Klíčová slova anglicky
histones; chromatin; HP1 protein; photoconversion; Dendra2; Cajal bodies
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 10. 4. 2013 16:58, doc. RNDr. Pavel Matula, Ph.D.
Anotace
V originále
Although it is well known that chromosomes are non-randomly organized during interphase, it is not completely clear whether higher-order chromatin structure is transmitted from mother to daughter cells. Therefore, we addressed the question of how chromatin is rearranged during interphase and whether heterochromatin pattern is transmitted after mitosis. We additionally tested the similarity of chromatin arrangement in sister interphase nuclei. We noticed a very active cell rotation during interphase, especially when histone hyperacetylation was induced or transcription was inhibited. This natural phenomenon can influence the analysis of nuclear arrangement. Using photoconversion of Dendra2-tagged core histone H4 we showed that the distribution of chromatin in daughter interphase nuclei differed from that in mother cells. Similarly, the nuclear distribution of heterochromatin protein 1beta (HP1beta) was not completely identical in mother and daughter cells. However, identity between mother and daughter cells was in many cases evidenced by nucleolar composition. Moreover, morphology of nucleoli, HP1beta protein, Cajal bodies, chromosome territories, and gene transcripts were identical in sister cell nuclei. We conclude that the arrangement of interphase chromatin is not transmitted through mitosis, but the chromatin pattern is identical in naturally synchronized sister cells. It is also necessary to take into account the possibility that cell rotation and the degree of chromatin condensation during functionally specific cell cycle phases might influence our view of nuclear architecture.
Návaznosti
GBP302/12/G157, projekt VaV |
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MUNI/A/0914/2009, interní kód MU |
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