1999
The topological organization of chromosomes 9 and 22 in cell nuclei has a determinative role in the induction of t(9,22) translocations and in the pathogenesis of t(9,22) leukemias
KOZUBEK, Stanislav, Emilie LUKÁŠOVÁ, Andrea MAREČKOVÁ, Magdalena SKALNÍKOVÁ, Michal KOZUBEK et. al.Základní údaje
Originální název
The topological organization of chromosomes 9 and 22 in cell nuclei has a determinative role in the induction of t(9,22) translocations and in the pathogenesis of t(9,22) leukemias
Autoři
KOZUBEK, Stanislav (203 Česká republika), Emilie LUKÁŠOVÁ (203 Česká republika), Andrea MAREČKOVÁ, Magdalena SKALNÍKOVÁ (203 Česká republika), Michal KOZUBEK (203 Česká republika), Eva BÁRTOVÁ (203 Česká republika), Václav KROHA, Eva KRAHULCOVÁ (203 Česká republika) a Jana ŠLOTOVÁ
Vydání
Chromosoma, Berlin, Springer-Verlag, 1999, 0009-5915
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
Genetika a molekulární biologie
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 2.530
Kód RIV
RIV/00216224:14330/99:00001454
Organizační jednotka
Fakulta informatiky
UT WoS
000084698400003
Klíčová slova anglicky
nuclear topography; chromosome 22; chromosome 9; CML; ABL; BCR; haemoblastoses
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 7. 5. 2010 17:15, prof. RNDr. Michal Kozubek, Ph.D.
Anotace
V originále
The neighborhood relationships of chromosomes can be of great importance for basic cellular processes such as gene expression or translocation induction. In this study, the topological organization of chromosomes 9 and 22 was investigated in cell nuclei of Go-lymphocytes. We found that the domains of both chromosomes are predominantly located in the central region of cell nuclei. In addition to this, chromosomes 9 and 22 were frequently associated in pairs detected as false positive ABL-BCR fusions. Both effects might substantially increase the probability of interaction between chromosomes. Because of this, exchange aberrations were studied in chromosomes 9 and 22 of human lymphocytes irradiated by neutrons. The rate of aberration induction between these chromosomes was 11 times higher than the expected frequency based on the fractional molecular weight of these chromosomes. We show that the increased rate of exchanges between chromosome 9 and 22 induced by neutrons corresponds to the neighborhood relationships of both chromosomes. Similar topological characteristics of ABL and BCR genes were found in several cell lines: T- and B-lymphocytes, HL60 cells and bone-marrow cells. This finding suggests that the mentioned specific chromatin structure might be responsible for the high rate of the induction of t(9;22) positive leukemias in the human population.
Návaznosti
GA202/97/0874, projekt VaV |
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MSM 143300002, záměr |
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NM15, projekt VaV |
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VS97031, projekt VaV |
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