Aberrations of BUBR1 and TP53 gene mutually associated with chromosomal instability in human colorectal cancer

Yan Zhao, Koji Ando, Eiji Oki, Ayae Ikawa-Yoshida, Satoshi Ida, Yasue Kimura, Hiroshi Saeki, Hiroyuki Kitao, Masaru Morita, Yoshihiko Maehara

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Background/Aim: Defects in mitotic checkpoint and p53-dependent pathways associate with chromosomal instability. In the present study, we investigated the interplay between BUBR1 and p53 and their association with genetic instability in colorectal cancer. Patients and Methods: 139 colorectal cases were examined for BUBR1, p53 and genetic instability indicators. BUBR1 expression was evaluated by immunohistochemistry and TP53 gene was directly sequenced. DNA ploidy was studied by laser scanning cytometry; MSI and TP53 loss of heterozygosity was also examined. Results: 64% of cases had high BUBR1 expression and were associated with the TP53 mutation. High BUBR1 expression and TP53 mutation associated with DNA aneuploidy and showed an inverse association with MSI. Cases with high BUBR1 expression and TP53 mutation had profound aneuploidy phenotypes and less frequent MSI compared to cases with one or neither aberration. Conclusion: Our findings indicated an interplay between BUBR1 and p53 in colorectal cancer. Altered expression of both molecules was associated with chromosomal instability.

Original languageEnglish
Pages (from-to)5421-5427
Number of pages7
JournalAnticancer research
Volume34
Issue number10
Publication statusPublished - Oct 1 2014

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Chromosomal Instability
p53 Genes
Colorectal Neoplasms
Aneuploidy
Mutation
Laser Scanning Cytometry
M Phase Cell Cycle Checkpoints
Ploidies
Loss of Heterozygosity
DNA
Immunohistochemistry
Phenotype
N-methylsuccinimide

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

Cite this

Aberrations of BUBR1 and TP53 gene mutually associated with chromosomal instability in human colorectal cancer. / Zhao, Yan; Ando, Koji; Oki, Eiji; Ikawa-Yoshida, Ayae; Ida, Satoshi; Kimura, Yasue; Saeki, Hiroshi; Kitao, Hiroyuki; Morita, Masaru; Maehara, Yoshihiko.

In: Anticancer research, Vol. 34, No. 10, 01.10.2014, p. 5421-5427.

Research output: Contribution to journalArticle

Zhao, Yan ; Ando, Koji ; Oki, Eiji ; Ikawa-Yoshida, Ayae ; Ida, Satoshi ; Kimura, Yasue ; Saeki, Hiroshi ; Kitao, Hiroyuki ; Morita, Masaru ; Maehara, Yoshihiko. / Aberrations of BUBR1 and TP53 gene mutually associated with chromosomal instability in human colorectal cancer. In: Anticancer research. 2014 ; Vol. 34, No. 10. pp. 5421-5427.
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AU - Ando, Koji

AU - Oki, Eiji

AU - Ikawa-Yoshida, Ayae

AU - Ida, Satoshi

AU - Kimura, Yasue

AU - Saeki, Hiroshi

AU - Kitao, Hiroyuki

AU - Morita, Masaru

AU - Maehara, Yoshihiko

PY - 2014/10/1

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N2 - Background/Aim: Defects in mitotic checkpoint and p53-dependent pathways associate with chromosomal instability. In the present study, we investigated the interplay between BUBR1 and p53 and their association with genetic instability in colorectal cancer. Patients and Methods: 139 colorectal cases were examined for BUBR1, p53 and genetic instability indicators. BUBR1 expression was evaluated by immunohistochemistry and TP53 gene was directly sequenced. DNA ploidy was studied by laser scanning cytometry; MSI and TP53 loss of heterozygosity was also examined. Results: 64% of cases had high BUBR1 expression and were associated with the TP53 mutation. High BUBR1 expression and TP53 mutation associated with DNA aneuploidy and showed an inverse association with MSI. Cases with high BUBR1 expression and TP53 mutation had profound aneuploidy phenotypes and less frequent MSI compared to cases with one or neither aberration. Conclusion: Our findings indicated an interplay between BUBR1 and p53 in colorectal cancer. Altered expression of both molecules was associated with chromosomal instability.

AB - Background/Aim: Defects in mitotic checkpoint and p53-dependent pathways associate with chromosomal instability. In the present study, we investigated the interplay between BUBR1 and p53 and their association with genetic instability in colorectal cancer. Patients and Methods: 139 colorectal cases were examined for BUBR1, p53 and genetic instability indicators. BUBR1 expression was evaluated by immunohistochemistry and TP53 gene was directly sequenced. DNA ploidy was studied by laser scanning cytometry; MSI and TP53 loss of heterozygosity was also examined. Results: 64% of cases had high BUBR1 expression and were associated with the TP53 mutation. High BUBR1 expression and TP53 mutation associated with DNA aneuploidy and showed an inverse association with MSI. Cases with high BUBR1 expression and TP53 mutation had profound aneuploidy phenotypes and less frequent MSI compared to cases with one or neither aberration. Conclusion: Our findings indicated an interplay between BUBR1 and p53 in colorectal cancer. Altered expression of both molecules was associated with chromosomal instability.

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