2010
The role of chromatin condensation during granulopoiesis in the regulation of gene cluster expression
STEJSKAL, Stanislav; Irena KRONTORÁD KOUTNÁ; Pavel MATULA; Zdeněk RUČKA; Ondřej DANĚK et al.Základní údaje
Originální název
The role of chromatin condensation during granulopoiesis in the regulation of gene cluster expression
Název česky
Role chromatinové kondenzace v regulaci genových lokusů během granulopoézy
Autoři
STEJSKAL, Stanislav; Irena KRONTORÁD KOUTNÁ; Pavel MATULA ORCID; Zdeněk RUČKA; Ondřej DANĚK; Martin MAŠKA ORCID a Michal KOZUBEK
Vydání
Epigenetics, USA, Landes Bioscience, 2010, 1559-2294
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: 4.622
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14330/10:00044622
Organizační jednotka
Fakulta informatiky
UT WoS
Klíčová slova česky
Granulocyty; Imunohistochemie; RNA polymerasa II; Analýza obrazu; buněčná diferenciace
Klíčová slova anglicky
Granulocytes; Immunohistochemistry; RNA polymerase II; Image analysis; Cell differentiation
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 13. 4. 2012 00:35, doc. RNDr. Pavel Matula, Ph.D.
Anotace
V originále
Changes in nuclear architecture play an important role in the regulation of gene expression. The importance of epigenetic changes is observed during granulopoiesis, when changes in the nuclear architecture are considered a major factor that influences the downregulation of genes. We aimed to assess the influence of chromatin condensation on the regulation of gene expression during granulopoiesis. Based on a previously published microarray analysis, we chose loci with different levels of transcriptional activity during granulopoiesis. Fluorescent in situ hybridisation (FISH) and immunofluorescent labelling of RNA polymerase II were used to determine the relationship between the transcriptional activity of gene clusters and their localisation within areas with different levels of chromatin condensation. Although active loci were positioned outside of areas of condensed chromatin, downregulation of genes during granulopoiesis was not accompanied by a shift of the downregulated loci to condensed areas. Only the beta-globin cluster was subjected to chromatin condensation and localised to condensed areas. Our results indicate that granulopoiesis is accompanied by a non-random, tissue-specific pattern of chromatin condensation. Furthermore, we observed that the decrease in the quantity of RNA polymerase II correlates with the differentiation process and likely acts in synergy with chromatin condensation to downregulate total gene expression.
Návaznosti
| MSM0021622419, záměr |
| ||
| MSM0021622430, záměr |
| ||
| 2B06052, projekt VaV |
|