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Characteristic chromosomal fragility of human embryonic cells exposed in vitro to aphidicolin.

作者信息

Caporossi D, Vernole P, Nicoletti B, Tedeschi B

机构信息

Department of Public Health and Cellular Biology, University of Tor Vergata, Rome, Italy.

出版信息

Hum Genet. 1995 Sep;96(3):269-74. doi: 10.1007/BF00210405.

DOI:10.1007/BF00210405
PMID:7649540
Abstract

The frequency and distribution of aphidicolin (APC)-induced common fragile sites (cfs) were analyzed in human embryonic cells of different origins. Embryonic lung fibroblasts (MRC-5), amniocytes (AMINO) and embryonic retina cells (HERO790) are as sensitive to the APC-induced clastogenic effect as peripheral lymphocytes, whereas embryonic kidney cells (HEK) seem more resistant to the induction of chromosomal gaps and breaks by the drug. Analysis of the distribution of fragile sites confirmed that the expression of specific APC-induced cfs varies in different cells and that the embryonic cell strains show a greater similarity among themselves than to lymphocytes. In addition, HEK, MRC-5, HERO790 and AMINO cells show specific APC induction of the cfs at the 1p31.2 chromosomal band, which seems to be a distinctive feature of the embryonic stage of cells.

摘要

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Generation of a new adenovirus type 12-inducible fragile site by insertion of an artificial U2 locus in the human genome.通过在人类基因组中插入人工U2位点产生一种新的12型腺病毒诱导性脆性位点。
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