1997
Localisation and distance between ABL and BCR genes in interphase nuclei of bone marrow cells of control donors and patients with chronic myeloid leukemia
LUKÁŠOVÁ, Emilie, Stanislav KOZUBEK, Michal KOZUBEK, Jana KJERONSKÁ, Leonard RÝZNAR et. al.Základní údaje
Originální název
Localisation and distance between ABL and BCR genes in interphase nuclei of bone marrow cells of control donors and patients with chronic myeloid leukemia
Autoři
LUKÁŠOVÁ, Emilie (203 Česká republika), Stanislav KOZUBEK (203 Česká republika), Michal KOZUBEK (203 Česká republika), Jana KJERONSKÁ, Leonard RÝZNAR, Jana HORÁKOVÁ, Eva KRAHULCOVÁ (203 Česká republika) a Gerda HORNECK
Vydání
Human Genetics, 1997, 0340-6717
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30200 3.2 Clinical medicine
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 2.662
Kód RIV
RIV/00216224:14330/97:00001513
Organizační jednotka
Fakulta informatiky
Klíčová slova anglicky
nuclear topography; ABL; BCR; interphase nuclei; bone marrow; CML
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 7. 5. 2010 17:25, prof. RNDr. Michal Kozubek, Ph.D.
Anotace
V originále
Quantitative measurements of the nuclear localisation of the ABL and BCR genes and the distance between them were performed in randomly oriented bone marrow cells of control donors and patients with chronic myeloid leukaemia (CML). Most ABL and BCR genes (75%) are located at a distance of 20-65% of the local radius from the nuclear centre to the nuclear membrane. A chimeric BCR-ABL gene located on a derivative chromosome 22 resulting from t(9;22)(q34;q11) [the so-called Philadelphia (Ph) chromosome] as well as the intact ABL and BCR genes of patients suffering from chronic myeloid leukemia are also located mostly in this region, which has a mean thickness of 2 ľm in bone marrow cells. We have not found any significant differences in the location of the two genes in the G1 and G2 phases of the cell cycle, nor between bone marrow cells and stimulated lymphocytes. Irradiation of lymphocytes with a dose of 5 Gy of gamma-rays results in a shift of both genes to the central region of the nucleus (0-20% of the radius distant from the nuclear centre) in about 15% of the cells. The minimum distance between one ABL and one BCR gene is less than 1 ľm in 47.5% of bone marrow cells of control donors. Such a small distance is found between homologous ABL and between homologous BCR genes in only 8.1% and in 8.4% of cells, respectively. It is possible that the relative closeness of nonhomologous ABL and BCR genes in interphase nuclei of bone marrow cells could facilitate translocation between these genes. In 16.4% of bone marrow cells one ABL and one BCR gene are juxtaposed (the distance between them varies from 0-0.5 ľm) and simulate the Ph chromosome. This juxtaposition is the result of the projection of two genes located one above another into a plane, as follows from the probability calculation.
Návaznosti
GA202/96/1718, projekt VaV |
| ||
GA202/97/0874, projekt VaV |
|