RRC ID 6787
Author Matsumoto Y, Iwakawa M, Furusawa Y, Ishikawa K, Aoki M, Imadome K, Matsumoto I, Tsujii H, Ando K, Imai T.
Title Gene expression analysis in human malignant melanoma cell lines exposed to carbon beams.
Journal Int J Radiat Biol
Abstract PURPOSE:To elucidate the molecular changes in response to carbon beams (C-ions) in melanoma.
MATERIALS AND METHODS:We examined expression profiles of 6 melanoma cell lines exposed to C-ions or X-rays with 2 Gy using single-color microarrays.
RESULTS:Twenty-two genes, including nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha (NFKBIA), responded to C-ions in all six cell lines, based on analysis of variance (ANOVA) filtering (p < 0.001). We found 173 genes that responded in common to C-ions in four cell lines. We identified many down-regulated genes including the cell cycle - related genes that were more responsive to C-ions than X-rays. In contrast, most of the up-regulated genes including the tumor protein p53 (p53) target genes responded to both C-ions and X-rays. C-ions induced G2/M arrest significantly more than X-rays at 30 h (p < 0.05).
CONCLUSION:Our findings suggest that down-regulation of gene expression plays a key role in the response to C-ions. Regulation of cell cycle - related genes and induction of prolonged G2/M arrest may be responsible for the extra sensitivity to C-ions, whereas p53-related genes may have similar roles in the sensitivities to both C-ions and X-rays.
Volume 84(4)
Pages 299-314
Published 2008-4-1
DOI 10.1080/09553000801953334
PII 791889986
PMID 18386195
MeSH Carbon Isotopes* Cell Line, Tumor Dose-Response Relationship, Radiation Gene Expression Regulation, Neoplastic / radiation effects* Heavy Ions* Humans Melanoma / metabolism* Neoplasm Proteins / metabolism* Radiation Dosage
IF 2.368
Times Cited 32
WOS Category NUCLEAR SCIENCE & TECHNOLOGY BIOLOGY RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
Resource
Human and Animal Cells COLO 679(RCB0989) HMV-II(RCB0777)