J 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; Lenka STIXOVÁ; Stanislav KOZUBEK; Hinco GIERMAN; Gabriela ŠUSTÁČKOVÁ; Andrei CHERNYSHEV; Ruslan MEDVEDEV; Soňa LEGARTOVÁ ORCID; Rogier VERSTEEG; Pavel MATULA ORCID; Roman STOKLASA ORCID a Eva BÁRTOVÁ

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

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14330/12:00057413

Organizační jednotka

Fakulta informatiky

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
Název: Dynamika a organizace chromosomů během buněčného cyklu a při diferenciaci v normě a patologii
Investor: Grantová agentura ČR, Dynamika a organizace chromosomů během buněčného cyklu a při diferenciaci v normě a patologii
MUNI/A/0914/2009, interní kód MU
Název: Rozsáhlé výpočetní systémy: modely, aplikace a verifikace (Akronym: SV-FI MAV)
Investor: Masarykova univerzita, Rozsáhlé výpočetní systémy: modely, aplikace a verifikace, DO R. 2020_Kategorie A - Specifický výzkum - Studentské výzkumné projekty