PMID- 6776655 OWN - NLM STAT- MEDLINE DCOM- 19810116 LR - 20190819 IS - 0300-483X (Print) IS - 0300-483X (Linking) VI - 17 IP - 1 DP - 1980 TI - Effect of carcinogenic polycyclic aromatic hydrocarbons on mouse embryonic cells in culture: induction of spindle-shaped cells. PG - 39-49 AB - In cultured mouse embryonic cells (MECs) treated with benzo[a]pyrene (B[a]P), there appeared unusual type of fibroblasts, spindle-shaped cells (SP cells), which were characterized by their narrow bipolar shape, long cellular processes and optically distinct cell borders. Appearance of SP cells was massive and irreversible. The amount of SP cells increased with increasing concentrations of B[a]P, while early cytotoxicity did not. In various polycyclic aromatic hydrocarbons (PAHs) tested, only potent carcinogens (7,12-dimethylbenz[a]anthracene (DMBA), 3-methylcholanthrene (MCA), B[a]P, and dibenz[a,e]pyrene (DB[a,e]P) induced SP cells. Among them, PAH having higher Iball's index induced SP cells at lower concentration and at an earlier time. Weak or non-carcinogenic PAHs including 3-hydroxybenzo[a]-pyrene (3-OH-B[a]P) did not induce SP cells. alpha-Napthoflavon (alpha NF) suppressed the induction of SP cell by carcinogenic PAH. SP cells did not appear spontaneously under various abnormal culture conditions. These results indicate that carcinogenic PAHs induce the appearance of a specific type of fibroblast, SP cells in MEC cultures in accordance with their carcinogenicity. FAU - Kamei, H AU - Kamei H LA - eng PT - Comparative Study PT - Journal Article PL - Ireland TA - Toxicology JT - Toxicology JID - 0361055 RN - 0 (Benzoflavones) RN - 0 (Benzopyrenes) RN - 0 (Carcinogens) RN - 0 (Polycyclic Compounds) RN - 56-49-5 (Methylcholanthrene) RN - 57-97-6 (9,10-Dimethyl-1,2-benzanthracene) RN - 604-59-1 (alpha-naphthoflavone) SB - IM MH - 9,10-Dimethyl-1,2-benzanthracene/pharmacology MH - Animals MH - Benzoflavones/pharmacology MH - Benzopyrenes/pharmacology MH - Carcinogens/*pharmacology MH - Cell Survival/drug effects MH - Cells, Cultured MH - Embryo, Mammalian MH - Fibroblasts/cytology/*drug effects MH - Methylcholanthrene/pharmacology MH - Mice MH - Polycyclic Compounds/antagonists & inhibitors/*pharmacology EDAT- 1980/01/01 00:00 MHDA- 1980/01/01 00:01 CRDT- 1980/01/01 00:00 PHST- 1980/01/01 00:00 [pubmed] PHST- 1980/01/01 00:01 [medline] PHST- 1980/01/01 00:00 [entrez] AID - 0300-483X(80)90025-6 [pii] AID - 10.1016/0300-483x(80)90025-6 [doi] PST - ppublish SO - Toxicology. 1980;17(1):39-49. doi: 10.1016/0300-483x(80)90025-6.