Genetic diversity of mitomycin C-hypersensitive Chinese hamster cell mutants: A new complementation group with chromosomal instability

1993 ◽  
Vol 19 (5) ◽  
pp. 431-437 ◽  
Author(s):  
W. J. I. Overkamp ◽  
M. A. Rooimans ◽  
I. Neuteboom ◽  
P. Telleman ◽  
F. Arwert ◽  
...  
2000 ◽  
Vol 59 (9) ◽  
pp. 1101-1107 ◽  
Author(s):  
Efterpi Papouli ◽  
Corinne Lafon ◽  
Annie Valette ◽  
Malgorzata Z Zdzienicka ◽  
Martine Defais ◽  
...  

1981 ◽  
Vol 1 (1) ◽  
pp. 58-65 ◽  
Author(s):  
J J Wasmuth ◽  
J M Hill ◽  
L S Vock

We have isolated emetine-resistant cell lines from Chinese hamster peritoneal fibroblasts and have shown that they represent a third distinct class or complementation group of emetine-resistant mutants, as determined by three different criteria. These mutants, like those belonging to the two other complementation groups we have previously defined, which were isolated from Chinese hamster lung and Chinese hamster ovary cells, have alterations that directly affect the protein biosynthetic machinery. So far, there is absolute cell line specificity with respect to the three complementation groups, in that all the emetine-resistant mutants we have isolated from Chinese hamster lung cells belong to one complementation group, all those we have isolated from Chinese hamster ovary cells belong to a second complementation group, and all those isolated from Chinese hamster peritoneal cells belong to a third complementation group. Thus, in cultured Chinese hamster cells, mutations in at least three different loci, designated emtA, emtB, and emtC, encoding for different components of the protein biosynthetic machinery, can give rise to the emetine-resistant phenotype.


1991 ◽  
Vol 56 (1) ◽  
pp. 23-26 ◽  
Author(s):  
F. Arwert ◽  
M.A. Rooimans ◽  
A. Westerveld ◽  
J.W.I.M. Simons ◽  
M.Z. Zdzienicka

1988 ◽  
Vol 193 (1) ◽  
pp. 31-41 ◽  
Author(s):  
Małgorzata Z. Zdzienicka ◽  
G.P. van der Schans ◽  
A. Westerveld ◽  
A.A. van Zeeland ◽  
J.W.I.M. Simons

Mutagenesis ◽  
1991 ◽  
Vol 6 (3) ◽  
pp. 179-183 ◽  
Author(s):  
M.Z. Zdzienicka ◽  
D.L. Mitchell ◽  
J. Venema ◽  
A. van Hoffen ◽  
A.A. van Zeeland ◽  
...  

1981 ◽  
Vol 1 (1) ◽  
pp. 58-65
Author(s):  
J J Wasmuth ◽  
J M Hill ◽  
L S Vock

We have isolated emetine-resistant cell lines from Chinese hamster peritoneal fibroblasts and have shown that they represent a third distinct class or complementation group of emetine-resistant mutants, as determined by three different criteria. These mutants, like those belonging to the two other complementation groups we have previously defined, which were isolated from Chinese hamster lung and Chinese hamster ovary cells, have alterations that directly affect the protein biosynthetic machinery. So far, there is absolute cell line specificity with respect to the three complementation groups, in that all the emetine-resistant mutants we have isolated from Chinese hamster lung cells belong to one complementation group, all those we have isolated from Chinese hamster ovary cells belong to a second complementation group, and all those isolated from Chinese hamster peritoneal cells belong to a third complementation group. Thus, in cultured Chinese hamster cells, mutations in at least three different loci, designated emtA, emtB, and emtC, encoding for different components of the protein biosynthetic machinery, can give rise to the emetine-resistant phenotype.


1988 ◽  
Vol 15 (3) ◽  
pp. 245-250
Author(s):  
Geirid Fiskesjö

Two industrial chemicals, 2,4-dichlorophenol and 4-chloro-2-methylphenoxyacetic acid (MCPA), which have no toxic effects on the Chinese hamster cell line V79 alone, were tested for toxicity and mutagenicity in a cell-mediated test, where mixed-function oxidase (MFO) enzymes are active in the metabolism of xenobiotics. For 2,4-dichlorophenol, a dose-dependent toxicity as well as a slight mutagenicity could be shown when oxygenation enzymes were present. A similar degree of toxicity in a plant test system (the Allium test) indicates a similar risk of damage from exposure to dichlorophenol treatments in both these systems. MCPA did not induce any toxic or mutagenic effects at the concentrations tested. These results were not in agreement with previous results in plant material, where MCPA was clearly toxic at relatively low doses. However, since chlorophenols have been found in plants sprayed with phenoxyacetic acids, further investigations should be performed concerning potential risk to human beings.


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