Expression pattern of the class I homeobox genes in ovarian carcinoma

Jin Hwa Hong, Jae Kwan Lee, Joong Jean Park, Nak Woo Lee, Kyu Wan Lee, Jung Yeol Na

    Research output: Contribution to journalArticlepeer-review

    16 Citations (Scopus)

    Abstract

    Objective: Although some sporadic reports reveal the link between the homeobox (HOX) genes and ovarian carcinoma, there is no comprehensive analysis of the expression pattern of the class I homeobox genes in ovarian carcinoma that determines the candidate genes involved in ovarian carcinogenesis. Methods: The different patterns of expression of 36 HOX genes were analyzed, including 4 ovarian cancer cell lines and 4 normal ovarian tissues. Using a reverse transcription-polymerase chain reaction (RT-PCR) and quantification analysis, the specific gene that showed a significantly higher expression in ovarian cancer cell lines than in normal ovaries was selected, and western blot analysis was performed adding 7 ovarian cancer tissue specimens. Finally, immunohistochemical and immunocytochemical analyses were performed to compare the pattern of expression of the specific HOX gene between ovarian cancer tissue and normal ovaries. Results: Among 36 genes, 11 genes had a different level of mRNA expression between the cancer cell lines and the normal ovarian tissues. Of the 11 genes, only HOXB4 had a significantly higher level of expression in ovarian cancer cell lines than in normal ovaries (p=0.029). Based on western blot, immunohistochemical, and immunocytochemical analyses, HOXB4 was expressed exclusively in the ovarian cancer cell lines or cancer tissue specimens, but not in the normal ovaries. Conclusion: We suggest HOXB4 may be a novel candidate gene involved in ovarian carcinogenesis.

    Original languageEnglish
    Pages (from-to)29-37
    Number of pages9
    JournalJournal of gynecologic oncology
    Volume21
    Issue number1
    DOIs
    Publication statusPublished - 2010 Mar

    Keywords

    • Carcinogenesis
    • Homeobox gene
    • Ovarian neoplasms

    ASJC Scopus subject areas

    • Oncology
    • Obstetrics and Gynaecology

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