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A monoclonal antibody directed against the human epidermal growth factor receptor 3 (HER3; ERBB3) with potential antineoplastic activity. Anti-HER3 monoclonal antibody GSK2849330 binds to HER3 and inhibits its activation. This may prevent HER3-mediated signaling and inhibit HER3-dependent tumor cell proliferation and differentiation. HER3, a member of the epidermal growth factor receptor (EGFR) family of receptor tyrosine kinases, is frequently overexpressed in tumors and is associated with poor prognosis and drug resistance; it has no active kinase domain but is activated through heterodimerization with other members of the EGFR receptor family, such as HER2. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C111997\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C111997\' NCI Thesaurus)
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