Identification of a new breast cancer-related gene by restriction landmark genomic scanning

Sota Asaga, Masakazu Ueda, Hiromitsu Jinno, Kiyoshi Kikuchi, Osamu Itano, Tadashi Ikeda, Masaki Kitajima

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Background: Molecular genetic analyses have demonstrated the importance of the accumulation of genomic changes in the etiology of cancer and, additionally, have identified valuable genetic markers for certain cancers. Although several prognostic markers have already been identified for breast cancer, it is clear that others remain to be identified. Materials and Methods: Fourteen breast cancer samples and non-cancerous counterparts were applied to restriction landmark genomic scanning (RLGS) and 6 breast cancer cell lines (MCF-7, MDA-MB-435, T-47D, MDA-MB-231, SK-BR-3 and BT-20) and 9 cancer tissue samples were applied to reverse transcriptional polymerase chain reaction (RT-PCR) for screening of novel genetic alterations. Results: Two spots were identified on the RLGS profiles of cancerous tissue that differed from those of normal tissue. Nucleotide sequencing and homology search analysis showed that these spots represented the voltage-dependent calcium channel α1H subunit gene (CACNA1H gene) and a locus immediately downstream of the growth factor receptor-binding protein 7 (GRB7) gene. Expression of the CACNA1H gene was confirmed by RT-PCR. Conclusion: Two genes, Grb7 and CACNA1H, were identified by RLGS. The expression of CACNA1H in breast cancer was confirmed for the first time.

Original languageEnglish
Pages (from-to)35-42
Number of pages8
JournalAnticancer Research
Volume26
Issue number1 A
Publication statusPublished - 2006 Jan

Fingerprint

Neoplasm Genes
Breast Neoplasms
Genes
Neoplasms
Polymerase Chain Reaction
Growth Factor Receptors
Genetic Testing
Calcium Channels
Genetic Markers
Molecular Biology
Carrier Proteins
Nucleotides
Gene Expression
Cell Line

Keywords

  • Breast cancer
  • Cloning
  • Grb7
  • Restriction landmark genomic scanning
  • Voltage-dependent calcium channel α1H subunit

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

Cite this

Asaga, S., Ueda, M., Jinno, H., Kikuchi, K., Itano, O., Ikeda, T., & Kitajima, M. (2006). Identification of a new breast cancer-related gene by restriction landmark genomic scanning. Anticancer Research, 26(1 A), 35-42.

Identification of a new breast cancer-related gene by restriction landmark genomic scanning. / Asaga, Sota; Ueda, Masakazu; Jinno, Hiromitsu; Kikuchi, Kiyoshi; Itano, Osamu; Ikeda, Tadashi; Kitajima, Masaki.

In: Anticancer Research, Vol. 26, No. 1 A, 01.2006, p. 35-42.

Research output: Contribution to journalArticle

Asaga, S, Ueda, M, Jinno, H, Kikuchi, K, Itano, O, Ikeda, T & Kitajima, M 2006, 'Identification of a new breast cancer-related gene by restriction landmark genomic scanning', Anticancer Research, vol. 26, no. 1 A, pp. 35-42.
Asaga S, Ueda M, Jinno H, Kikuchi K, Itano O, Ikeda T et al. Identification of a new breast cancer-related gene by restriction landmark genomic scanning. Anticancer Research. 2006 Jan;26(1 A):35-42.
Asaga, Sota ; Ueda, Masakazu ; Jinno, Hiromitsu ; Kikuchi, Kiyoshi ; Itano, Osamu ; Ikeda, Tadashi ; Kitajima, Masaki. / Identification of a new breast cancer-related gene by restriction landmark genomic scanning. In: Anticancer Research. 2006 ; Vol. 26, No. 1 A. pp. 35-42.
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