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Puig-Saus C, Sennino B, Peng S, Wang CL, Pan Z, Yuen B, Purandare B, An D, Quach BB, Nguyen D, Xia H, Jilani S, Shao K, McHugh C, Greer J, Peabody P, Nayak S, Hoover J, Said S, Jacoby K, Dalmas O, Foy SP, Conroy A, Yi MC, Shieh C, Lu W, Heeringa K, Ma Y, Chizari S, Pilling MJ, Ting M, Tunuguntla R, Sandoval S, Moot R, Hunter T, Zhao S, Saco JD, Perez-Garcilazo I, Medina E, Vega-Crespo A, Baselga-Carretero I, Abril-Rodriguez G, Cherry G, Wong DJ, Hundal J, Chmielowski B, Speiser DE, Bethune MT, Bao XR, Gros A, Griffith OL, Griffith M, Heath JR, Franzusoff A, Mandl SJ, Ribas A. Neoantigen-targeted CD8 + T cell responses with PD-1 blockade therapy. Nature 2023; 615:697-704. [PMID: 36890230 PMCID: PMC10441586 DOI: 10.1038/s41586-023-05787-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 02/02/2023] [Indexed: 03/10/2023]
Abstract
Neoantigens are peptides derived from non-synonymous mutations presented by human leukocyte antigens (HLAs), which are recognized by antitumour T cells1-14. The large HLA allele diversity and limiting clinical samples have restricted the study of the landscape of neoantigen-targeted T cell responses in patients over their treatment course. Here we applied recently developed technologies15-17 to capture neoantigen-specific T cells from blood and tumours from patients with metastatic melanoma with or without response to anti-programmed death receptor 1 (PD-1) immunotherapy. We generated personalized libraries of neoantigen-HLA capture reagents to single-cell isolate the T cells and clone their T cell receptors (neoTCRs). Multiple T cells with different neoTCR sequences (T cell clonotypes) recognized a limited number of mutations in samples from seven patients with long-lasting clinical responses. These neoTCR clonotypes were recurrently detected over time in the blood and tumour. Samples from four patients with no response to anti-PD-1 also demonstrated neoantigen-specific T cell responses in the blood and tumour to a restricted number of mutations with lower TCR polyclonality and were not recurrently detected in sequential samples. Reconstitution of the neoTCRs in donor T cells using non-viral CRISPR-Cas9 gene editing demonstrated specific recognition and cytotoxicity to patient-matched melanoma cell lines. Thus, effective anti-PD-1 immunotherapy is associated with the presence of polyclonal CD8+ T cells in the tumour and blood specific for a limited number of immunodominant mutations, which are recurrently recognized over time.
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Affiliation(s)
- Cristina Puig-Saus
- Division of Hematology-Oncology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA.
- Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, CA, USA.
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA.
- Broad Stem Cell Research Center, UCLA, Los Angeles, CA, USA.
| | | | | | | | | | | | | | - Duo An
- PACT Pharma, San Francisco, CA, USA
| | | | | | - Huiming Xia
- McDonnell Genome Institute, Washington University School of Medicine, St Louis, MO, USA
| | - Sameeha Jilani
- Division of Hematology-Oncology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Yan Ma
- PACT Pharma, San Francisco, CA, USA
| | | | | | | | | | | | | | | | - Sidi Zhao
- McDonnell Genome Institute, Washington University School of Medicine, St Louis, MO, USA
| | - Justin D Saco
- Division of Hematology-Oncology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Ivan Perez-Garcilazo
- Division of Hematology-Oncology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Egmidio Medina
- Division of Hematology-Oncology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Agustin Vega-Crespo
- Division of Hematology-Oncology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Ignacio Baselga-Carretero
- Division of Hematology-Oncology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Gabriel Abril-Rodriguez
- Division of Hematology-Oncology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA
| | - Grace Cherry
- Division of Hematology-Oncology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Deborah J Wong
- Division of Hematology-Oncology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Jasreet Hundal
- McDonnell Genome Institute, Washington University School of Medicine, St Louis, MO, USA
| | - Bartosz Chmielowski
- Division of Hematology-Oncology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA
- Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, CA, USA
| | - Daniel E Speiser
- Department of Oncology, University of Lausanne, Lausanne, Switzerland
| | | | | | - Alena Gros
- Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Obi L Griffith
- McDonnell Genome Institute, Washington University School of Medicine, St Louis, MO, USA
| | - Malachi Griffith
- McDonnell Genome Institute, Washington University School of Medicine, St Louis, MO, USA
| | | | | | | | - Antoni Ribas
- Division of Hematology-Oncology, Department of Medicine, University of California Los Angeles, Los Angeles, CA, USA.
- Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, CA, USA.
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA.
- Broad Stem Cell Research Center, UCLA, Los Angeles, CA, USA.
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Abril-Rodriguez G, Torrejon DY, Karin D, Campbell KM, Medina E, Saco JD, Galvez M, Champhekar AS, Perez-Garcilazo I, Baselga-Carretero I, Singh J, Comin-Anduix B, Puig-Saus C, Ribas A. Remodeling of the tumor microenvironment through PAK4 inhibition sensitizes tumors to immune checkpoint blockade. Cancer Res Commun 2022; 2:1214-1228. [PMID: 36588582 PMCID: PMC9799984 DOI: 10.1158/2767-9764.crc-21-0133] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 02/14/2022] [Accepted: 09/12/2022] [Indexed: 02/01/2023]
Abstract
PAK4 inhibition can sensitize tumors to immune checkpoint blockade (ICB) therapy, however, the underlying mechanisms remain unclear. We report that PAK4 inhibition reverses immune cell exclusion by increasing the infiltration of CD8 T cells and CD103+ dendritic cells (DCs), a specific type of DCs that excel at cross-presenting tumor antigens and constitute a source of CXCL10. Interestingly, in melanoma clinical datasets, PAK4 expression levels negatively correlate with the presence of CCL21, the ligand for CCR7 expressed in CD103+ DCs. Furthermore, we extensively characterized the transcriptome of PAK4 knock out (KO) tumors, in vitro and in vivo, and established the importance of PAK4 expression in the regulation of the extracellular matrix, which can facilitate immune cell infiltration. Comparison between PAK4 wild type (WT) and KO anti-PD-1 treated tumors revealed how PAK4 deletion sensitizes tumors to ICB from a transcriptomic perspective. In addition, we validated genetically and pharmacologically that inhibition of PAK4 kinase activity is sufficient to improve anti-tumor efficacy of anti-PD-1 blockade in multiple melanoma mouse models. Therefore, this study provides novel insights into the mechanism of action of PAK4 inhibition and provides the foundation for a new treatment strategy that aims to overcome resistance to PD-1 blockade by combining anti-PD-1 with a small molecule PAK4 kinase inhibitor.
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Affiliation(s)
- Gabriel Abril-Rodriguez
- Department of Medicine, Division of Hematology-Oncology, University of California, Los Angeles (UCLA), Los Angeles, California
- Department of Molecular and Medical Pharmacology, UCLA, Los Angeles, California
| | - Davis Y. Torrejon
- Department of Medicine, Division of Hematology-Oncology, University of California, Los Angeles (UCLA), Los Angeles, California
| | - Daniel Karin
- Department of Medicine, Division of Hematology-Oncology, University of California, Los Angeles (UCLA), Los Angeles, California
- Department of Molecular and Medical Pharmacology, UCLA, Los Angeles, California
| | - Katie M. Campbell
- Department of Medicine, Division of Hematology-Oncology, University of California, Los Angeles (UCLA), Los Angeles, California
| | - Egmidio Medina
- Department of Medicine, Division of Hematology-Oncology, University of California, Los Angeles (UCLA), Los Angeles, California
| | - Justin D. Saco
- Department of Medicine, Division of Hematology-Oncology, University of California, Los Angeles (UCLA), Los Angeles, California
| | - Mildred Galvez
- Department of Medicine, Division of Hematology-Oncology, University of California, Los Angeles (UCLA), Los Angeles, California
| | - Ameya S. Champhekar
- Department of Medicine, Division of Hematology-Oncology, University of California, Los Angeles (UCLA), Los Angeles, California
| | - Ivan Perez-Garcilazo
- Department of Medicine, Division of Hematology-Oncology, University of California, Los Angeles (UCLA), Los Angeles, California
| | - Ignacio Baselga-Carretero
- Department of Medicine, Division of Hematology-Oncology, University of California, Los Angeles (UCLA), Los Angeles, California
| | - Jas Singh
- Arcus Biosciences, Inc., Hayward, California
| | - Begoña Comin-Anduix
- Department of Surgery, Division of Surgical Oncology, UCLA, Los Angeles, California
- Jonsson Comprehensive Cancer Center, Los Angeles, California
| | - Cristina Puig-Saus
- Department of Medicine, Division of Hematology-Oncology, University of California, Los Angeles (UCLA), Los Angeles, California
- Jonsson Comprehensive Cancer Center, Los Angeles, California
- Parker Institute for Cancer Immunotherapy, San Francisco, California
| | - Antoni Ribas
- Department of Medicine, Division of Hematology-Oncology, University of California, Los Angeles (UCLA), Los Angeles, California
- Department of Molecular and Medical Pharmacology, UCLA, Los Angeles, California
- Department of Surgery, Division of Surgical Oncology, UCLA, Los Angeles, California
- Jonsson Comprehensive Cancer Center, Los Angeles, California
- Parker Institute for Cancer Immunotherapy, San Francisco, California
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