PMID- 10923620 OWN - NLM STAT- MEDLINE DCOM- 20000810 LR - 20190910 IS - 0955-3002 (Print) IS - 0955-3002 (Linking) VI - 76 IP - 7 DP - 2000 Jul TI - Absence of delayed chromosomal instability in a normal human fibroblast cell line after 125I iododeoxyuridine. PG - 963-9 AB - PURPOSE: To seek the delayed appearance of chromosomal abnormalities in human fibroblasts exposed to the Auger electron emitter 125I. MATERIALS AND METHODS: Normal untransformed human fibroblasts, HF19, were exposed to a concentration of [I125]IUdR, which allowed the survival of 37% of clonogens. Chromosomal analysis using both conventional Giemsa and fluorescence in situ hybridization (FISH) was undertaken on non-clonal bulk cultures from 2 to 39 days after treatment. RESULTS: The data show a declining level of unstable aberrations in the progeny of HF19 fibroblasts exposed to [I125]IUdR, eventually reaching control levels. CONCLUSIONS: The results provide evidence that [125I]IUdR does not induce ongoing chromosomal instability in long-term culture, and gives further support to the use of Auger-electron emitting radionuclides in the treatment and diagnosis of tumours. FAU - Griffin, C S AU - Griffin CS AD - Radiation and Genome Stability Unit, MRC, Harwell, Oxon, UK. c.griffin@har.mrc.ac.uk FAU - Neshasateh-Riz, A AU - Neshasateh-Riz A FAU - Mairs, R J AU - Mairs RJ FAU - Wright, E G AU - Wright EG FAU - Wheldon, T E AU - Wheldon TE LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Int J Radiat Biol JT - International journal of radiation biology JID - 8809243 RN - 0 (Iodine Radioisotopes) RN - LGP81V5245 (Idoxuridine) SB - IM MH - Cell Line MH - *Chromosome Aberrations MH - Fibroblasts/radiation effects MH - Humans MH - Idoxuridine/toxicity MH - In Situ Hybridization, Fluorescence MH - Iodine Radioisotopes/*toxicity EDAT- 2000/08/03 11:00 MHDA- 2000/08/12 11:00 CRDT- 2000/08/03 11:00 PHST- 2000/08/03 11:00 [pubmed] PHST- 2000/08/12 11:00 [medline] PHST- 2000/08/03 11:00 [entrez] AID - 10.1080/09553000050050972 [doi] PST - ppublish SO - Int J Radiat Biol. 2000 Jul;76(7):963-9. doi: 10.1080/09553000050050972.