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Article

Loss of 15-hydroxyprostaglandin dehydrogenase indicates a tumor suppressor role in pituitary adenomas

  • Authors:
    • Ji-Wei Bai
    • Zhe Wang
    • Song-Bai Gui
    • Ya-Zhuo Zhang
  • View Affiliations / Copyright

    Affiliations: Beijing Neurosurgical Institute, Capital Medical University, Dongcheng District, Beijing 100050, P.R. China, Neurosurgical Department, Beijing Tiantan Hospital, Dongcheng District, Beijing 100050, P.R. China
  • Pages: 714-720
    |
    Published online on: May 9, 2012
       https://doi.org/10.3892/or.2012.1806
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Abstract

15-hydroxyprostaglandin dehydrogenase (15-PGDH) may function as a tumor suppressor that antagonizes the action of the cyclooxygenase-2 (COX-2) oncogene in several types of tumors. However, it is unknown if it has a role in the pituitary. Recently, our group found that 15-PGDH expression was low in prolactin (PRL) secreting adenomas (prolactinomas) and growth hormone (GH) secreting adenomas (GHomas) using fiber-optic BeadArray technology. In this study, we examined the relative expression of 15-PGDH and COX-2 mRNA in clinical specimens and examined the effects of 15-PGDH on GH3 rat pituitary tumor cell proliferation, apoptosis and hormone secretion. 15-PGDH expression was lower and COX-2 expression was higher in prolactinomas and GHomas compared with normal controls. Overexpressed 15-PGDH inhibited tumor cell proliferation and induced apoptosis. It had a significant suppressive effect on mRNA levels and on the secretion of PRL and GH in GH3 cells. The inhibition of cell proliferation was accompanied by the decreased expression of cox-2, matrix metalloproteinase-9 (MMP-9) and B cell leukemia/lymphoma-2 (Bcl-2). These data are suggestive of a previously unrecognized pathway in pituitary tumorigenesis, and this novel observation may shed light on therapeutic strategies for pituitary tumors.
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Copy and paste a formatted citation
Spandidos Publications style
Bai J, Wang Z, Gui S and Zhang Y: Loss of 15-hydroxyprostaglandin dehydrogenase indicates a tumor suppressor role in pituitary adenomas. Oncol Rep 28: 714-720, 2012.
APA
Bai, J., Wang, Z., Gui, S., & Zhang, Y. (2012). Loss of 15-hydroxyprostaglandin dehydrogenase indicates a tumor suppressor role in pituitary adenomas. Oncology Reports, 28, 714-720. https://doi.org/10.3892/or.2012.1806
MLA
Bai, J., Wang, Z., Gui, S., Zhang, Y."Loss of 15-hydroxyprostaglandin dehydrogenase indicates a tumor suppressor role in pituitary adenomas". Oncology Reports 28.2 (2012): 714-720.
Chicago
Bai, J., Wang, Z., Gui, S., Zhang, Y."Loss of 15-hydroxyprostaglandin dehydrogenase indicates a tumor suppressor role in pituitary adenomas". Oncology Reports 28, no. 2 (2012): 714-720. https://doi.org/10.3892/or.2012.1806
Copy and paste a formatted citation
x
Spandidos Publications style
Bai J, Wang Z, Gui S and Zhang Y: Loss of 15-hydroxyprostaglandin dehydrogenase indicates a tumor suppressor role in pituitary adenomas. Oncol Rep 28: 714-720, 2012.
APA
Bai, J., Wang, Z., Gui, S., & Zhang, Y. (2012). Loss of 15-hydroxyprostaglandin dehydrogenase indicates a tumor suppressor role in pituitary adenomas. Oncology Reports, 28, 714-720. https://doi.org/10.3892/or.2012.1806
MLA
Bai, J., Wang, Z., Gui, S., Zhang, Y."Loss of 15-hydroxyprostaglandin dehydrogenase indicates a tumor suppressor role in pituitary adenomas". Oncology Reports 28.2 (2012): 714-720.
Chicago
Bai, J., Wang, Z., Gui, S., Zhang, Y."Loss of 15-hydroxyprostaglandin dehydrogenase indicates a tumor suppressor role in pituitary adenomas". Oncology Reports 28, no. 2 (2012): 714-720. https://doi.org/10.3892/or.2012.1806
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