2004
Cytological study of DNA methylation and histone methylation patterns in human cell lines
SKALNÍKOVÁ, Magdalena; Eva BÁRTOVÁ; Stanislav KOZUBEK a Michal KOZUBEKZákladní údaje
Originální název
Cytological study of DNA methylation and histone methylation patterns in human cell lines
Název česky
Cytologická studie chování DNA metylace a histonové metylace v lidských buněčných liniích
Autoři
SKALNÍKOVÁ, Magdalena; Eva BÁRTOVÁ; Stanislav KOZUBEK a Michal KOZUBEK
Vydání
First Edition 2004. Brno, Biophysics of the Genome, od s. 72-75, 4 s. 2004
Nakladatel
Masaryk University
Další údaje
Jazyk
angličtina
Typ výsledku
Stať ve sborníku
Obor
Genetika a molekulární biologie
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14330/04:00009706
Organizační jednotka
Fakulta informatiky
ISBN
80-210-3560-9
Klíčová slova anglicky
cytometry
Štítky
Příznaky
Mezinárodní význam
Změněno: 29. 10. 2010 14:31, prof. RNDr. Michal Kozubek, Ph.D.
V originále
Epigenetic processes are defined as heritable changes in genome function that occur without a change in DNA sequence. Gene expression, chromosome segregation, DNA replication, repair, and recombination all act, not on DNA alone, but on the chromatin template. DNA methylation, along with histone lysine methylation, establishes the framework for long-term epigenetic maintenance. The discovery that enzymes can (re)organise chromatin into accessible and inaccessible configurations revealed epigenetic mechanisms that considerably extend the information potential of the genetic code. In mammals, heterochromatin is characterised by DNA methylation at CpG dinucleotides and methylation at lysine 9 of histone 3 (H3- K9), whereas euchromatin is associated with methylation at lysine 4 of histone 3 (H3-K4). In our experiments, the detection of DNA methylated regions at chromosomal level was performed using indirect immunofluorescence technique combined with FISH. The selected metaphase chromosomes HSA 2 were determined using FISH. Sequential 5-methylcytosin rich regions were visualised using immunofluorescent labelling in retinoblastoma cell line Y79 and in leukemic cell line K562. Our model study is partly focused on the global histone H3-K4 and H3-K9 trimethylation studied by qualitative immunohistochemistry in retinoblastoma cells Y79 and leukemic cells K562. Our results highlight the importance of the relationships between histone modifications and DNA methylation, however the mutual connection between individual epigenetic hereditary mechanisms has not been made clear yet.
Česky
Cytologická studie chování DNA metylace a histonové metylace v lidských buněčných liniích.
Návaznosti
| GA202/04/0907, projekt VaV |
| ||
| GP202/03/D033, projekt VaV |
| ||
| IAA5004306, projekt VaV |
| ||
| MSM 143300002, záměr |
| ||
| NC6987, projekt VaV |
| ||
| 1A8241, projekt VaV |
|