Abstract
Decades of published research supports a role for growth hormone (GH) in cancer. Accordingly, there is increasing interest in targeting GH in oncology, with GH antagonists exhibiting efficacy in xenograft studies as single agents and in combination with anticancer therapy or radiation. Here we discuss challenges associated with using growth hormone receptor (GHR) antagonists in preclinical models and considerations for translation, such as the identification of predictive biomarkers for selecting patients and for monitoring drug efficacy. Ongoing research will determine whether suppressing GH signalling pharmacologically will also reduce the risk of developing cancer. An increase in GH-targeted drugs in preclinical development will ultimately provide researchers with new tools to test anti-cancer efficacy of blocking the GH signalling pathway in preclinical models.
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