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Leukotriene A4 hydrolase: an emerging target of natural products for cancer chemoprevention and chemotherapy

Cancer is the second leading cause of death worldwide and has become a global burden. It has long been known that inflammation is related to cancer, as inflammatory components have been identified in the tumor microenvironment and support tumor progression. Among the key inflammatory mediators, leukotrienes were found to be involved in cancer development. In particular, leukotriene B4, which is converted from leukotriene A4 by leukotriene A4 hydrolase (LTA4H), has been implicated in several types of cancer. In addition, LTA4H has attracted attention because of purported roles in inflammation and cancer development. Herein, we review the history of LTA4H, its emerging roles in cancer development, and the development of LTA4H inhibitors in cancer prevention and therapy.