PMID- 28490665 OWN - NLM STAT- MEDLINE DCOM- 20180220 LR - 20220331 IS - 1946-6242 (Electronic) IS - 1946-6234 (Print) IS - 1946-6234 (Linking) VI - 9 IP - 389 DP - 2017 May 10 TI - In vivo imaging reveals a tumor-associated macrophage-mediated resistance pathway in anti-PD-1 therapy. LID - 10.1126/scitranslmed.aal3604 [doi] LID - eaal3604 AB - Monoclonal antibodies (mAbs) targeting the immune checkpoint anti-programmed cell death protein 1 (aPD-1) have demonstrated impressive benefits for the treatment of some cancers; however, these drugs are not always effective, and we still have a limited understanding of the mechanisms that contribute to their efficacy or lack thereof. We used in vivo imaging to uncover the fate and activity of aPD-1 mAbs in real time and at subcellular resolution in mice. We show that aPD-1 mAbs effectively bind PD-1(+) tumor-infiltrating CD8(+) T cells at early time points after administration. However, this engagement is transient, and aPD-1 mAbs are captured within minutes from the T cell surface by PD-1(-) tumor-associated macrophages. We further show that macrophage accrual of aPD-1 mAbs depends both on the drug's Fc domain glycan and on Fcgamma receptors (FcgammaRs) expressed by host myeloid cells and extend these findings to the human setting. Finally, we demonstrate that in vivo blockade of FcgammaRs before aPD-1 mAb administration substantially prolongs aPD-1 mAb binding to tumor-infiltrating CD8(+) T cells and enhances immunotherapy-induced tumor regression in mice. These investigations yield insight into aPD-1 target engagement in vivo and identify specific Fc/FcgammaR interactions that can be modulated to improve checkpoint blockade therapy. CI - Copyright (c) 2017, American Association for the Advancement of Science. FAU - Arlauckas, Sean P AU - Arlauckas SP AUID- ORCID: 0000-0003-4056-8824 AD - Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114, USA. AD - Department of Radiology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114, USA. AD - Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Boston, MA 02115, USA. FAU - Garris, Christopher S AU - Garris CS AUID- ORCID: 0000-0002-5764-6203 AD - Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114, USA. AD - Graduate Program in Immunology, Harvard Medical School, Boston, MA 02115, USA. FAU - Kohler, Rainer H AU - Kohler RH AUID- ORCID: 0000-0001-6269-6590 AD - Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114, USA. FAU - Kitaoka, Maya AU - Kitaoka M AD - Center for Immunology and Infectious Disease, Massachusetts General Hospital, 149 8th Street, Charlestown, MA 02129, USA. FAU - Cuccarese, Michael F AU - Cuccarese MF AUID- ORCID: 0000-0001-7431-9573 AD - Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114, USA. FAU - Yang, Katherine S AU - Yang KS AUID- ORCID: 0000-0003-0182-950X AD - Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114, USA. FAU - Miller, Miles A AU - Miller MA AUID- ORCID: 0000-0001-7638-8898 AD - Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114, USA. AD - Department of Radiology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114, USA. FAU - Carlson, Jonathan C AU - Carlson JC AD - Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114, USA. FAU - Freeman, Gordon J AU - Freeman GJ AUID- ORCID: 0000-0002-7210-5616 AD - Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA. FAU - Anthony, Robert M AU - Anthony RM AD - Center for Immunology and Infectious Disease, Massachusetts General Hospital, 149 8th Street, Charlestown, MA 02129, USA. FAU - Weissleder, Ralph AU - Weissleder R AUID- ORCID: 0000-0003-0828-4143 AD - Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114, USA. AD - Department of Radiology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114, USA. AD - Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Boston, MA 02115, USA. FAU - Pittet, Mikael J AU - Pittet MJ AUID- ORCID: 0000-0002-2060-4691 AD - Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114, USA. mpittet@mgh.harvard.edu. AD - Department of Radiology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114, USA. LA - eng GR - R01 CA164448/CA/NCI NIH HHS/United States GR - U54 CA151884/CA/NCI NIH HHS/United States GR - R01 AI084880/AI/NIAID NIH HHS/United States GR - P50 CA101942/CA/NCI NIH HHS/United States GR - F31 CA196035/CA/NCI NIH HHS/United States GR - P50 CA086355/CA/NCI NIH HHS/United States GR - DP2 AR068272/AR/NIAMS NIH HHS/United States GR - R21 CA190344/CA/NCI NIH HHS/United States GR - R01 CA206890/CA/NCI NIH HHS/United States GR - R01 HL084312/HL/NHLBI NIH HHS/United States GR - T32 CA079443/CA/NCI NIH HHS/United States GR - P30 DK043351/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PL - United States TA - Sci Transl Med JT - Science translational medicine JID - 101505086 RN - 0 (Antibodies, Monoclonal) RN - 0 (Programmed Cell Death 1 Receptor) RN - 0 (Receptors, IgG) SB - IM CIN - Nat Rev Cancer. 2017 Jul 23;17 (7):396-397. PMID: 28642605 CIN - Nat Rev Drug Discov. 2017 Jun 29;16(7):455. PMID: 28660900 MH - Animals MH - Antibodies, Monoclonal/*immunology/therapeutic use MH - CD8-Positive T-Lymphocytes/metabolism MH - Cells, Cultured MH - Humans MH - Immunotherapy/methods MH - Mice MH - Mice, Inbred C57BL MH - Programmed Cell Death 1 Receptor/immunology/*metabolism MH - Receptors, IgG/metabolism PMC - PMC5734617 MID - NIHMS921513 COIS- Competing interests: G.J.F. has patents and potential royalties on the PD-1 pathway. EDAT- 2017/05/12 06:00 MHDA- 2018/02/21 06:00 PMCR- 2017/12/18 CRDT- 2017/05/12 06:00 PHST- 2016/10/01 00:00 [received] PHST- 2016/11/07 00:00 [revised] PHST- 2017/03/16 00:00 [accepted] PHST- 2017/05/12 06:00 [entrez] PHST- 2017/05/12 06:00 [pubmed] PHST- 2018/02/21 06:00 [medline] PHST- 2017/12/18 00:00 [pmc-release] AID - 9/389/eaal3604 [pii] AID - 10.1126/scitranslmed.aal3604 [doi] PST - ppublish SO - Sci Transl Med. 2017 May 10;9(389):eaal3604. doi: 10.1126/scitranslmed.aal3604.