PMID- 11230557 OWN - NLM STAT- MEDLINE DCOM- 20010607 LR - 20190513 IS - 0267-8357 (Print) IS - 0267-8357 (Linking) VI - 16 IP - 2 DP - 2001 Mar TI - Chromosomal composition of micronuclei in mouse NIH 3T3 cells treated with acrylamide, extract of Tripterygium hypoglaucum (level) hutch, mitomycin C and colchicine, detected by multicolor FISH with centromeric and telomeric DNA probes. PG - 145-9 AB - The chromosomal composition of micronuclei (MN) induced by the model mutagens mitomycin (MMC) and colchicine (COL) as well as by acrylamide (AA) and the traditional Chinese medicine Tripterygium hypoglaucum (level) hutch (THH) in NIH 3T3 cells was analyzed by multicolor fluorescence in situ hybridization (FISH) using DNA probes for the centromere repeated minor satellite DNA and the telomeric hexamer repeat (TTAGGG). The majority of MN (78.6%) from treatment with MMC (0.1 microg/ml) did not show centromeric signals, reflecting the clastogenic action of MMC. Following treatment with COL (0.1 microg/ml), 74.5% of the MN showed centromeric signals and several telomeric signals, indicating that MN induced by this well-known aneugen were mainly composed of whole chromosomes. After treatment with AA (100, 200 and 400 microg/ml) both MN containing whole chromosomes and MN containing acentric fragments were found to increase in a dose-dependent manner, demonstrating that AA is not only a clastogen but also an aneugen. THH induced a high frequency of MN harboring whole chromosomes at all concentrations tested (5, 10 and 20 microl/ml) and produced a dose-dependent increase in fragment-containing MN, indicating that THH has both aneugenic and clastogenic potential. FAU - Jie, Y M AU - Jie YM AD - Molecular Toxicology Laboratory, Third Military Medical University, Chongqing 400038, China. FAU - Jia, C AU - Jia C LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Mutagenesis JT - Mutagenesis JID - 8707812 RN - 0 (Alkylating Agents) RN - 0 (Antineoplastic Agents, Phytogenic) RN - 0 (DNA Probes) RN - 0 (Drugs, Chinese Herbal) RN - 0 (Mutagens) RN - 20R035KLCI (Acrylamide) RN - 50SG953SK6 (Mitomycin) RN - SML2Y3J35T (Colchicine) SB - IM MH - 3T3 Cells MH - Acrylamide/*pharmacology MH - Alkylating Agents/pharmacology MH - Animals MH - Antineoplastic Agents, Phytogenic/pharmacology MH - Centromere/drug effects/genetics MH - Chromosomes/*drug effects MH - Colchicine/*pharmacology MH - DNA Probes/*genetics MH - Drugs, Chinese Herbal/*pharmacology MH - In Situ Hybridization, Fluorescence/*methods MH - Mice MH - Micronuclei, Chromosome-Defective/*drug effects/genetics MH - Mitomycin/*pharmacology MH - Mutagens/pharmacology MH - Telomere/drug effects/genetics MH - Tripterygium EDAT- 2001/03/07 10:00 MHDA- 2001/06/08 10:01 CRDT- 2001/03/07 10:00 PHST- 2001/03/07 10:00 [pubmed] PHST- 2001/06/08 10:01 [medline] PHST- 2001/03/07 10:00 [entrez] AID - 10.1093/mutage/16.2.145 [doi] PST - ppublish SO - Mutagenesis. 2001 Mar;16(2):145-9. doi: 10.1093/mutage/16.2.145.