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Current Pharmaceutical Design

Editor-in-Chief

ISSN (Print): 1381-6128
ISSN (Online): 1873-4286

Targeting Cyclooxygenase-2 in Hematological Malignancies: Rationale and Promise

Author(s): M. P. Bernard, S. Bancos, P. J. Sime and R. P. Phipps

Volume 14, Issue 21, 2008

Page: [2051 - 2060] Pages: 10

DOI: 10.2174/138161208785294654

Price: $65

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Abstract

There is much interest in the potential use of Cox-2 selective inhibitors in combination with other cancer therapeutics. Malignancies of hematopoietic and non-hematopoietic origin often have increased expression of cyclooxygenase- 2 (Cox-2), a key modulator of inflammation. For example, hematological malignancies such as chronic lymphocytic leukemia, chronic myeloid leukemia, Hodgkins lymphoma, non-Hodgkins lymphoma and multiple myeloma often highly express Cox-2, which correlates with poor patient prognosis. Expression of Cox-2 enhances survival and proliferation of malignant cells, while negatively influencing anti-tumor immunity. Hematological malignancies expressing elevated levels of Cox-2 potentially avoid immune responses by producing factors that enhance angiogenesis and metastasis. Cellular immune responses regulated by natural killer cells, cytotoxic T lymphocytes, and T regulatory cells are also influenced by Cox-2 expression. Therefore, Cox-2 selective inhibitors have promising therapeutic potential in patients suffering from certain hematological malignancies.

Keywords: cyclooxygenase-2 (Cox-2), inflammation, hematological malignancies, chronic lymphocytic, leukemia, chronic myeloid leukemia, Hodgkin's lymphoma, multiple myeloma, anti-tumor immunity, angiogenesis


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