Drozitumab (PRO 95780) is a human agonistic monoclonal antibody which binds the death receptor DR5. Drozitumab has potent antitumor activity against rhabdomyosarcoma.
Drozitumab selectively eliminates cancer stem cells (CSCs), resulting in tumor growth inhibition and even regression of pancreatic tumors[3].Drozitumab induces apoptosis in mesencmal TNBC cell lines but not in cell lines from other breast cancer subtypes[1].
References:
[1]. Dine JL, et al. The TRAIL receptor agonist drozitumab targets basal B triple-negative breast cancer cells that express vimentin and Axl. Breast Cancer Res Treat. 2016 Jan;155(2):235-51.
[2]. Kang Z, et al. Drozitumab, a human antibody to death receptor 5, has potent antitumor activity against rhabdomyosarcoma with the expression of caspase-8 predictive of response. Clin Cancer Res. 2011 May 15;17(10):3181-92.
[3]. Eng JW, et al. Pancreatic cancer stem cells in patient pancreatic xenografts are sensitive to drozitumab, an agonistic antibody against DR5. J Immunother Cancer. 2016 Jun 21;4:33.