PMID- 25696001 OWN - NLM STAT- MEDLINE DCOM- 20151117 LR - 20230607 IS - 1946-6242 (Electronic) IS - 1946-6234 (Print) IS - 1946-6234 (Linking) VI - 7 IP - 275 DP - 2015 Feb 18 TI - Rational development and characterization of humanized anti-EGFR variant III chimeric antigen receptor T cells for glioblastoma. PG - 275ra22 LID - 10.1126/scitranslmed.aaa4963 [doi] AB - Chimeric antigen receptors (CARs) are synthetic molecules designed to redirect T cells to specific antigens. CAR-modified T cells can mediate long-term durable remissions in B cell malignancies, but expanding this platform to solid tumors requires the discovery of surface targets with limited expression in normal tissues. The variant III mutation of the epidermal growth factor receptor (EGFRvIII) results from an in-frame deletion of a portion of the extracellular domain, creating a neoepitope. We chose a vector backbone encoding a second-generation CAR based on efficacy of a murine scFv-based CAR in a xenograft model of glioblastoma. Next, we generated a panel of humanized scFvs and tested their specificity and function as soluble proteins and in the form of CAR-transduced T cells; a low-affinity scFv was selected on the basis of its specificity for EGFRvIII over wild-type EGFR. The lead candidate scFv was tested in vitro for its ability to direct CAR-transduced T cells to specifically lyse, proliferate, and secrete cytokines in response to antigen-bearing targets. We further evaluated the specificity of the lead CAR candidate in vitro against EGFR-expressing keratinocytes and in vivo in a model of mice grafted with normal human skin. EGFRvIII-directed CAR T cells were also able to control tumor growth in xenogeneic subcutaneous and orthotopic models of human EGFRvIII(+) glioblastoma. On the basis of these results, we have designed a phase 1 clinical study of CAR T cells transduced with humanized scFv directed to EGFRvIII in patients with either residual or recurrent glioblastoma (NCT02209376). CI - Copyright (c) 2015, American Association for the Advancement of Science. FAU - Johnson, Laura A AU - Johnson LA AD - Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA 19104, USA. Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA. FAU - Scholler, John AU - Scholler J AD - Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA 19104, USA. FAU - Ohkuri, Takayuki AU - Ohkuri T AD - Department of Neurosurgery, University of Pittsburgh, Pittsburgh, PA 15213, USA. FAU - Kosaka, Akemi AU - Kosaka A AD - Department of Neurosurgery, University of Pittsburgh, Pittsburgh, PA 15213, USA. FAU - Patel, Prachi R AU - Patel PR AD - Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA 19104, USA. FAU - McGettigan, Shannon E AU - McGettigan SE AD - Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA 19104, USA. FAU - Nace, Arben K AU - Nace AK AD - Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA. FAU - Dentchev, Tzvete AU - Dentchev T AD - Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA. FAU - Thekkat, Pramod AU - Thekkat P AD - Novartis Institutes for Biomedical Research, Cambridge, MA 02139, USA. FAU - Loew, Andreas AU - Loew A AD - Novartis Institutes for Biomedical Research, Cambridge, MA 02139, USA. FAU - Boesteanu, Alina C AU - Boesteanu AC AD - Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA 19104, USA. FAU - Cogdill, Alexandria P AU - Cogdill AP AD - Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA 19104, USA. FAU - Chen, Taylor AU - Chen T AD - Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA 19104, USA. FAU - Fraietta, Joseph A AU - Fraietta JA AD - Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA 19104, USA. FAU - Kloss, Christopher C AU - Kloss CC AD - Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA 19104, USA. FAU - Posey, Avery D Jr AU - Posey AD Jr AD - Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA 19104, USA. FAU - Engels, Boris AU - Engels B AD - Novartis Institutes for Biomedical Research, Cambridge, MA 02139, USA. FAU - Singh, Reshma AU - Singh R AD - Novartis Institutes for Biomedical Research, Cambridge, MA 02139, USA. FAU - Ezell, Tucker AU - Ezell T AD - Novartis Institutes for Biomedical Research, Cambridge, MA 02139, USA. FAU - Idamakanti, Neeraja AU - Idamakanti N AD - Novartis Institutes for Biomedical Research, Cambridge, MA 02139, USA. FAU - Ramones, Melissa H AU - Ramones MH AD - Novartis Institutes for Biomedical Research, Cambridge, MA 02139, USA. FAU - Li, Na AU - Li N AD - Novartis Institutes for Biomedical Research, Cambridge, MA 02139, USA. FAU - Zhou, Li AU - Zhou L AD - Novartis Institutes for Biomedical Research, Cambridge, MA 02139, USA. FAU - Plesa, Gabriela AU - Plesa G AD - Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA 19104, USA. FAU - Seykora, John T AU - Seykora JT AD - Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA. FAU - Okada, Hideho AU - Okada H AD - Department of Neurosurgery, University of California, San Francisco, San Francisco, CA 94158, USA. FAU - June, Carl H AU - June CH AD - Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA 19104, USA. Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA. FAU - Brogdon, Jennifer L AU - Brogdon JL AD - Novartis Institutes for Biomedical Research, Cambridge, MA 02139, USA. FAU - Maus, Marcela V AU - Maus MV AD - Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA 19104, USA. Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA. marcela.maus@uphs.upenn.edu. LA - eng SI - ClinicalTrials.gov/NCT02209376 GR - K08-166039/PHS HHS/United States GR - R01 CA165836/CA/NCI NIH HHS/United States GR - K08 CA166039/CA/NCI NIH HHS/United States GR - DP2CA174502/CA/NCI NIH HHS/United States GR - DP2 CA174502/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Sci Transl Med JT - Science translational medicine JID - 101505086 RN - 0 (Receptors, Antigen, T-Cell) RN - EC 2.7.10.1 (ErbB Receptors) SB - IM CIN - Nat Rev Drug Discov. 2015 Apr;14(4):235. PMID: 25829274 MH - Animals MH - Brain Neoplasms/*therapy MH - Disease Models, Animal MH - ErbB Receptors/*immunology MH - Glioblastoma/*therapy MH - Heterografts MH - Humans MH - *Immunotherapy MH - Mice MH - Receptors, Antigen, T-Cell/*immunology PMC - PMC4467166 MID - NIHMS697681 EDAT- 2015/02/20 06:00 MHDA- 2015/11/18 06:00 PMCR- 2016/02/18 CRDT- 2015/02/20 06:00 PHST- 2015/02/20 06:00 [entrez] PHST- 2015/02/20 06:00 [pubmed] PHST- 2015/11/18 06:00 [medline] PHST- 2016/02/18 00:00 [pmc-release] AID - 7/275/275ra22 [pii] AID - 10.1126/scitranslmed.aaa4963 [doi] PST - ppublish SO - Sci Transl Med. 2015 Feb 18;7(275):275ra22. doi: 10.1126/scitranslmed.aaa4963.