Frequent deletion and down-regulation of ING4, a candidate tumor suppressor gene at 12p13, in head and neck squamous cell carcinomas

Mehmet Gunduz, Hitoshi Nagatsuka, Kadir Demircan, Esra Gunduz, Beyhan Cengiz, Mamoru Oouchida, Hidetsugu Tsujigiwa, Eiki Yamachika, Kunihiro Fukushima, Levent Beder, Satoshi Hirohata, Yoshifumi Ninomiya, Kazunori Nishizaki, Kenji Shimizu, Noriyuki Nagai

Research output: Contribution to journalArticle

110 Citations (Scopus)

Abstract

We previously showed two members of the ING family, ING1 and ING3 as a tumor suppressor gene in head and neck cancer. Progress in human genome sequencing provided additional information of the new members of the ING family genes. ING4 is localized to chromosome 12p13.31 region and harbors the PHD domain highly homologous among ING family proteins. We analyzed loss of heterozygosity at 12p12-13 region in 50 head and neck squamous cell carcinomas by using six highly polymorphic microsatellite markers and found allelic loss in 66% (33/50) of the informative cases. To clarify the role of ING4 in head and neck carcinogenesis, we first checked mutation status in tumor samples. As mutation of the ING4 gene was not found in head and neck cancers, we examined the mRNA expression level. Quantitative real-time RT-PCR analysis demonstrated decreased expression of ING4 mRNA in 76% of primary tumors as compared with that of matched normal samples. Since p53 dependent pathways of other ING family members have been shown, we examined p53 mutation status and compared with ING4 mRNA expression in tumor samples. However, no such direct relationship has been detected. In conclusion, frequent deletion and decreased mRNA expression of ING4 suggested it as a class two tumor suppressor gene and may play an important role in head and neck cancer.

Original languageEnglish
Pages (from-to)109-117
Number of pages9
JournalGene
Volume356
Issue number1-2
DOIs
Publication statusPublished - Aug 15 2005

Fingerprint

Tumor Suppressor Genes
Down-Regulation
Head and Neck Neoplasms
Messenger RNA
Loss of Heterozygosity
Mutation
Neoplasms
Human Genome
Microsatellite Repeats
Genes
Real-Time Polymerase Chain Reaction
Carcinogenesis
Neck
Chromosomes
Head
Carcinoma, squamous cell of head and neck
Proteins

Keywords

  • HNSCC
  • ING family
  • ING1
  • LOH

ASJC Scopus subject areas

  • Genetics

Cite this

Frequent deletion and down-regulation of ING4, a candidate tumor suppressor gene at 12p13, in head and neck squamous cell carcinomas. / Gunduz, Mehmet; Nagatsuka, Hitoshi; Demircan, Kadir; Gunduz, Esra; Cengiz, Beyhan; Oouchida, Mamoru; Tsujigiwa, Hidetsugu; Yamachika, Eiki; Fukushima, Kunihiro; Beder, Levent; Hirohata, Satoshi; Ninomiya, Yoshifumi; Nishizaki, Kazunori; Shimizu, Kenji; Nagai, Noriyuki.

In: Gene, Vol. 356, No. 1-2, 15.08.2005, p. 109-117.

Research output: Contribution to journalArticle

Gunduz, Mehmet ; Nagatsuka, Hitoshi ; Demircan, Kadir ; Gunduz, Esra ; Cengiz, Beyhan ; Oouchida, Mamoru ; Tsujigiwa, Hidetsugu ; Yamachika, Eiki ; Fukushima, Kunihiro ; Beder, Levent ; Hirohata, Satoshi ; Ninomiya, Yoshifumi ; Nishizaki, Kazunori ; Shimizu, Kenji ; Nagai, Noriyuki. / Frequent deletion and down-regulation of ING4, a candidate tumor suppressor gene at 12p13, in head and neck squamous cell carcinomas. In: Gene. 2005 ; Vol. 356, No. 1-2. pp. 109-117.
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AU - Nagatsuka, Hitoshi

AU - Demircan, Kadir

AU - Gunduz, Esra

AU - Cengiz, Beyhan

AU - Oouchida, Mamoru

AU - Tsujigiwa, Hidetsugu

AU - Yamachika, Eiki

AU - Fukushima, Kunihiro

AU - Beder, Levent

AU - Hirohata, Satoshi

AU - Ninomiya, Yoshifumi

AU - Nishizaki, Kazunori

AU - Shimizu, Kenji

AU - Nagai, Noriyuki

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