2003
Architecture of chromosomal territories in apoptotic cells
BÁRTOVÁ, Eva, Miloslava FOJTOVÁ, Karel SOUČEK, Pavel MATULA, Stanislav PALŠA et. al.Základní údaje
Originální název
Architecture of chromosomal territories in apoptotic cells
Autoři
BÁRTOVÁ, Eva (203 Česká republika, garant), Miloslava FOJTOVÁ (203 Česká republika), Karel SOUČEK (203 Česká republika), Pavel MATULA (203 Česká republika), Stanislav PALŠA (203 Česká republika) a Stanislav KOZUBEK (203 Česká republika)
Vydání
Brno, Biophysics of the Genome, od s. 13-22, 10 s. 2003
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
Kód RIV
RIV/00216224:14330/03:00008243
Organizační jednotka
Fakulta informatiky
ISBN
80-210-3226-X
Klíčová slova anglicky
human genome structure
Štítky
Příznaky
Mezinárodní význam
Změněno: 3. 6. 2010 15:53, doc. RNDr. Pavel Matula, Ph.D.
Anotace
V originále
The nuclear architecture of selected chromosomes in apoptotic nuclei of human leukemic cells K-562 and HL-60 was investigated in the presented paper. Etoposide and prolonged confluence were used for the induction of apoptosis. DAPI- as well as TUNEL- labelling of apoptotic nuclear bodies was combined with visualisation of chromosomal territories by the FISH technique. Simultaneous vital staining by Annexin V, PI and Hoechst 33342 was applied in order to distinguish apoptotic, necrotic and intact cell fraction of tested population. Our FISH analyses revealed that the 3D- structure of apoptotic nuclei as well as the 3D- structure of apoptotic bodies is preserved in formaldehyde fixed cells. High molecular weight DNA fragmentation was determined in apoptotic K-562 cells in contrast to oligonucleosomal cleavage observed in apoptotic HL In comparison with the control, an increased number of centromeric FISH signals were observed in prolonged confluence treated K-562 cells induced to apoptosis. This finding can be explained either as a consequence of apoptosis or by polyploidization. Sequential staining of the same apoptotic nuclei by the FISH and TUNEL techniques revealed that chromosomal territory segmentation precedes the formation of nuclear apoptotic bodies.
Návaznosti
GA301/01/0186, projekt VaV |
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IAB5004102, projekt VaV |
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IBS5004010, projekt VaV |
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MSM 143300002, záměr |
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