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Delaveris CS, Kong S, Glasgow J, Loudermilk RP, Kirkemo LL, Zhao F, Salangsang F, Phojanakong P, Camara Serrano JA, Steri V, Wells JA. Chemoproteomics reveals immunogenic and tumor-associated cell surface substrates of ectokinase CK2α. Cell Chem Biol 2024; 31:1729-1739.e9. [PMID: 39178841 PMCID: PMC11482644 DOI: 10.1016/j.chembiol.2024.07.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 05/23/2024] [Accepted: 07/29/2024] [Indexed: 08/26/2024]
Abstract
Foreign epitopes for immune recognition provide the basis of anticancer immunity. Due to the high concentration of extracellular adenosine triphosphate in the tumor microenvironment, we hypothesized that extracellular kinases (ectokinases) could have dysregulated activity and introduce aberrant phosphorylation sites on cell surface proteins. We engineered a cell-tethered version of the extracellular kinase CK2α, demonstrated it was active on cells under tumor-relevant conditions, and profiled its substrate scope using a chemoproteomic workflow. We then demonstrated that mice developed polyreactive antisera in response to syngeneic tumor cells that had been subjected to surface hyperphosphorylation with CK2α. Interestingly, these mice developed B cell and CD4+ T cell responses in response to these antigens but failed to develop a CD8+ T cell response. This work provides a workflow for probing the extracellular phosphoproteome and demonstrates that extracellular phosphoproteins are immunogenic even in a syngeneic system.
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Affiliation(s)
- Corleone S Delaveris
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA
| | - Sophie Kong
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA
| | - Jeff Glasgow
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA
| | - Rita P Loudermilk
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA
| | - Lisa L Kirkemo
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA
| | - Fangzhu Zhao
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA
| | - Fernando Salangsang
- Preclinical Therapeutics Core, Helen Diller Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA 94158, USA
| | - Paul Phojanakong
- Preclinical Therapeutics Core, Helen Diller Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA 94158, USA
| | - Juan Antonio Camara Serrano
- Preclinical Therapeutics Core, Helen Diller Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA 94158, USA
| | - Veronica Steri
- Preclinical Therapeutics Core, Helen Diller Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA 94158, USA
| | - James A Wells
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, USA; Department of Cellular & Molecular Pharmacology, University of California San Francisco, San Francisco, CA 94158, USA.
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2
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Krakow EF, Brault M, Summers C, Cunningham TM, Biernacki MA, Black RG, Woodward KB, Vartanian N, Kanaan SB, Yeh AC, Dossa RG, Bar M, Cassaday RD, Dahlberg A, Till BG, Denker AE, Yeung CCS, Gooley TA, Maloney DG, Riddell SR, Greenberg PD, Chapuis AG, Newell EW, Furlan SN, Bleakley M. HA-1-targeted T-cell receptor T-cell therapy for recurrent leukemia after hematopoietic stem cell transplantation. Blood 2024; 144:1069-1082. [PMID: 38683966 PMCID: PMC11406181 DOI: 10.1182/blood.2024024105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/27/2024] [Accepted: 04/10/2024] [Indexed: 05/02/2024] Open
Abstract
ABSTRACT Relapse is the leading cause of death after allogeneic hematopoietic stem cell transplantation (HCT) for leukemia. T cells engineered by gene transfer to express T cell receptors (TCR; TCR-T) specific for hematopoietic-restricted minor histocompatibility (H) antigens may provide a potent selective antileukemic effect post-HCT. We conducted a phase 1 clinical trial using a novel TCR-T product targeting the minor H antigen, HA-1, to treat or consolidate treatment of persistent or recurrent leukemia and myeloid neoplasms. The primary objective was to evaluate the feasibility and safety of administration of HA-1 TCR-T after HCT. CD8+ and CD4+ T cells expressing the HA-1 TCR and a CD8 coreceptor were successfully manufactured from HA-1-disparate HCT donors. One or more infusions of HA-1 TCR-T following lymphodepleting chemotherapy were administered to 9 HCT recipients who had developed disease recurrence after HCT. TCR-T cells expanded and persisted in vivo after adoptive transfer. No dose-limiting toxicities occurred. Although the study was not designed to assess efficacy, 4 patients achieved or maintained complete remissions following lymphodepletion and HA-1 TCR-T, with 1 patient still in remission at >2 years. Single-cell RNA sequencing of relapsing/progressive leukemia after TCR-T therapy identified upregulated molecules associated with T-cell dysfunction or cancer cell survival. HA-1 TCR-T therapy appears feasible and safe and shows preliminary signals of efficacy. This clinical trial was registered at ClinicalTrials.gov as #NCT03326921.
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Affiliation(s)
- Elizabeth F. Krakow
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA
- Department of Medicine, University of Washington School of Medicine, Seattle, WA
| | - Michelle Brault
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA
| | - Corinne Summers
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA
- Cancer and Blood Disorders Center, Seattle Children's Hospital, Seattle, WA
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA
| | - Tanya M. Cunningham
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA
| | - Melinda A. Biernacki
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA
| | - R. Graeme Black
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA
| | - Kyle B. Woodward
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA
| | - Nicole Vartanian
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA
| | - Sami B. Kanaan
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA
| | - Albert C. Yeh
- Department of Medicine, University of Washington School of Medicine, Seattle, WA
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA
| | - Robson G. Dossa
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA
| | - Merav Bar
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA
| | - Ryan D. Cassaday
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA
- Department of Medicine, University of Washington School of Medicine, Seattle, WA
| | - Ann Dahlberg
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA
- Cancer and Blood Disorders Center, Seattle Children's Hospital, Seattle, WA
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA
| | - Brian G. Till
- Department of Medicine, University of Washington School of Medicine, Seattle, WA
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA
| | | | - Cecilia C. S. Yeung
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA
- Department of Laboratory Medicine and Pathology, University of Washington School of Medicine, Seattle, WA
| | - Ted A. Gooley
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA
| | - David G. Maloney
- Department of Medicine, University of Washington School of Medicine, Seattle, WA
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA
| | - Stanley R. Riddell
- Department of Medicine, University of Washington School of Medicine, Seattle, WA
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA
| | - Philip D. Greenberg
- Department of Medicine, University of Washington School of Medicine, Seattle, WA
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA
- Department of Immunology, University of Washington School of Medicine, Seattle, WA
| | - Aude G. Chapuis
- Department of Medicine, University of Washington School of Medicine, Seattle, WA
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA
| | - Evan W. Newell
- Vaccine and Infection Disease Division, Fred Hutchinson Cancer Center, Seattle, WA
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA
| | - Scott N. Furlan
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA
- Cancer and Blood Disorders Center, Seattle Children's Hospital, Seattle, WA
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA
| | - Marie Bleakley
- Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA
- Cancer and Blood Disorders Center, Seattle Children's Hospital, Seattle, WA
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA
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3
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Zhang MH, Scotland BL, Jiao Y, Slaby EM, Truong N, Cottingham AL, Stephanie G, Szeto GL, Pearson RM. Lipid-Polymer Hybrid Nanoparticles Utilize B Cells and Dendritic Cells to Elicit Distinct Antigen-Specific CD4 + and CD8 + T Cell Responses. ACS APPLIED BIO MATERIALS 2024; 7:4818-4830. [PMID: 37219857 PMCID: PMC10665545 DOI: 10.1021/acsabm.3c00229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Antigen-presenting cells (APCs) are widely studied for treating immune-mediated diseases, and dendritic cells (DCs) are potent APCs that uptake and present antigens (Ags). However, DCs face several challenges that hinder their clinical translation due to their inability to control Ag dosing and low abundance in peripheral blood. B cells are a potential alternative to DCs, but their poor nonspecific Ag uptake capabilities compromise controllable priming of T cells. Here, we developed phospholipid-conjugated Ags (L-Ags) and lipid-polymer hybrid nanoparticles (L/P-Ag NPs) as delivery platforms to expand the range of accessible APCs for use in T cell priming. These delivery platforms were evaluated using DCs, CD40-activated B cells, and resting B cells to understand the impacts of various Ag delivery mechanisms for generation of Ag-specific T cell responses. L-Ag delivery (termed depoting) of MHC class I- and II-restricted Ags successfully loaded all APC types in a tunable manner and primed both Ag-specific CD8+ and CD4+ T cells, respectively. Incorporating L-Ags and polymer-conjugated Ags (P-Ag) into NPs can direct Ags to different uptake pathways to engineer the dynamics of presentation and shape T cell responses. DCs were capable of processing and presenting Ag delivered from both L- and P-Ag NPs, yet B cells could only utilize Ag delivered from L-Ag NPs, which led to differential cytokine secretion profiles in coculture studies. Altogether, we show that L-Ags and P-Ags can be rationally paired within a single NP to leverage distinct delivery mechanisms to access multiple Ag processing pathways in two APC types, offering a modular delivery platform for engineering Ag-specific immunotherapies.
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Affiliation(s)
- Michael H. Zhang
- Department of Chemical, Biochemical, and Environmental Engineering, University of Maryland Baltimore County, Baltimore, MD 21250
- Co-first authors
| | - Brianna L. Scotland
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD 21201
- Co-first authors
| | - Yun Jiao
- Department of Chemical, Biochemical, and Environmental Engineering, University of Maryland Baltimore County, Baltimore, MD 21250
| | - Emily M. Slaby
- Department of Chemical, Biochemical, and Environmental Engineering, University of Maryland Baltimore County, Baltimore, MD 21250
| | - Nhu Truong
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD 21201
| | - Andrea L. Cottingham
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD 21201
| | - Georgina Stephanie
- Department of Chemical, Biochemical, and Environmental Engineering, University of Maryland Baltimore County, Baltimore, MD 21250
| | - Gregory L. Szeto
- Department of Chemical, Biochemical, and Environmental Engineering, University of Maryland Baltimore County, Baltimore, MD 21250
- Allen Institute for Immunology, Seattle, WA 98109
| | - Ryan M. Pearson
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD 21201
- University of Maryland Greenebaum Comprehensive Cancer Center, Baltimore, MD 21201
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201
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4
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Roque JA, Lukesh NR, Hendy DA, Dixon TA, Islam MJ, Ontiveros-Padilla L, Pena ES, Lifshits LM, Simpson SR, Batty CJ, Bachelder EM, Ainslie KM. Enhancement of subunit vaccine delivery with zinc-carnosine coordination polymer through the addition of mannan. Int J Pharm 2024; 656:124076. [PMID: 38569976 PMCID: PMC11062752 DOI: 10.1016/j.ijpharm.2024.124076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/24/2024] [Accepted: 03/31/2024] [Indexed: 04/05/2024]
Abstract
Vaccines represent a pivotal health advancement for preventing infection. However, because carrier systems with repeated administration can invoke carrier-targeted immune responses that diminish subsequent immune responses (e.g., PEG antibodies), there is a continual need to develop novel vaccine platforms. Zinc carnosine microparticles (ZnCar MPs), which are composed of a one-dimensional coordination polymer formed between carnosine and the metal ion zinc, have exhibited efficacy in inducing an immune response against influenza. However, ZnCar MPs' limited suspendability hinders clinical application. In this study, we address this issue by mixing mannan, a polysaccharide derived from yeast, with ZnCar MPs. We show that the addition of mannan increases the suspendability of this promising vaccine formulation. Additionally, since mannan is an adjuvant, we illustrate that the addition of mannan increases the antibody response and T cell response when mixed with ZnCar MPs. Mice vaccinated with mannan + OVA/ZnCar MPs had elevated serum IgG and IgG1 levels in comparison to vaccination without mannan. Moreover, in the mannan + OVA/ZnCar MPs vaccinated group, mucosal washes demonstrated increased IgG, IgG1, and IgG2c titers, and antigen recall assays showed enhanced IFN-γ production in response to MHC-I and MHC-II immunodominant peptide restimulation, compared to the vaccination without mannan. These findings suggest that the use of mannan mixed with ZnCar MPs holds potential for subunit vaccination and its improved suspendability further promotes clinical translation.
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Affiliation(s)
- John A Roque
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
| | - Nicole Rose Lukesh
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
| | - Dylan A Hendy
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
| | - Timothy A Dixon
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
| | - Md Jahirul Islam
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
| | - Luis Ontiveros-Padilla
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
| | - Erik S Pena
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, NC 27599, United States
| | - Liubov M Lifshits
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
| | - Sean R Simpson
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
| | - Cole J Batty
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
| | - Eric M Bachelder
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
| | - Kristy M Ainslie
- Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States; Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, NC 27599, United States; Department of Microbiology and Immunology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States.
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5
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Goddard ET, Linde MH, Srivastava S, Klug G, Shabaneh TB, Iannone S, Grzelak CA, Marsh S, Riggio AI, Shor RE, Linde IL, Guerrero M, Veatch JR, Snyder AG, Welm AL, Riddell SR, Ghajar CM. Immune evasion of dormant disseminated tumor cells is due to their scarcity and can be overcome by T cell immunotherapies. Cancer Cell 2024; 42:119-134.e12. [PMID: 38194912 PMCID: PMC10864018 DOI: 10.1016/j.ccell.2023.12.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 10/06/2023] [Accepted: 12/12/2023] [Indexed: 01/11/2024]
Abstract
The period between "successful" treatment of localized breast cancer and the onset of distant metastasis can last many years, representing an unexploited window to eradicate disseminated disease and prevent metastases. We find that the source of recurrence-disseminated tumor cells (DTCs) -evade endogenous immunity directed against tumor neoantigens. Although DTCs downregulate major histocompatibility complex I, this does not preclude recognition by conventional T cells. Instead, the scarcity of interactions between two relatively rare populations-DTCs and endogenous antigen-specific T cells-underlies DTC persistence. This scarcity is overcome by any one of three immunotherapies that increase the number of tumor-specific T cells: T cell-based vaccination, or adoptive transfer of T cell receptor or chimeric antigen receptor T cells. Each approach achieves robust DTC elimination, motivating discovery of MHC-restricted and -unrestricted DTC antigens that can be targeted with T cell-based immunotherapies to eliminate the reservoir of metastasis-initiating cells in patients.
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Affiliation(s)
- Erica T Goddard
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Miles H Linde
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; Center for Metastasis Research eXcellence (MET-X), Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Shivani Srivastava
- Human Biology Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; Center for Metastasis Research eXcellence (MET-X), Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Grant Klug
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Tamer B Shabaneh
- Immunotherapy Integrated Research Center, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; Translational Sciences and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Santino Iannone
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; Center for Metastasis Research eXcellence (MET-X), Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Candice A Grzelak
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; Center for Metastasis Research eXcellence (MET-X), Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Sydney Marsh
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; Center for Metastasis Research eXcellence (MET-X), Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Alessandra I Riggio
- Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112, USA
| | - Ryann E Shor
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Ian L Linde
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; Center for Metastasis Research eXcellence (MET-X), Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Marissa Guerrero
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Joshua R Veatch
- Immunotherapy Integrated Research Center, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; Translational Sciences and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Annelise G Snyder
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; Center for Metastasis Research eXcellence (MET-X), Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Alana L Welm
- Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112, USA
| | - Stanley R Riddell
- Immunotherapy Integrated Research Center, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; Translational Sciences and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; Center for Metastasis Research eXcellence (MET-X), Fred Hutchinson Cancer Center, Seattle, WA 98109, USA.
| | - Cyrus M Ghajar
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; Human Biology Division, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; Immunotherapy Integrated Research Center, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA; Center for Metastasis Research eXcellence (MET-X), Fred Hutchinson Cancer Center, Seattle, WA 98109, USA.
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6
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Chen LY, Gong WJ, Li MH, Zhou HX, Xu MZ, Qian CS, Kang LQ, Xu N, Yu Z, Qiao M, Zhang TT, Zhang L, Tian ZL, Sun AN, Yu L, Wu DP, Xue SL. Anti-CD19 CAR T-cell consolidation therapy combined with CD19+ feeding T cells and TKI for Ph+ acute lymphoblastic leukemia. Blood Adv 2023; 7:4913-4925. [PMID: 36897251 PMCID: PMC10463198 DOI: 10.1182/bloodadvances.2022009072] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 02/21/2023] [Accepted: 02/21/2023] [Indexed: 03/11/2023] Open
Abstract
We conducted a single-arm, open-label, single-center phase 1 study to assess the safety and efficacy of multicycle-sequential anti-CD19 chimeric antigen receptor (CAR) T-cell therapy in combination with autologous CD19+ feeding T cells (FTCs) and tyrosine kinase inhibitor (TKI) as consolidation therapy in patients under the age of 65 years with de novo Ph-positive CD19+ B-cell acute lymphoblastic leukemia. Participants were given induction chemotherapy as well as systemic chemotherapy with TKI. Afterward, they received a single cycle of CD19 CAR T-cell infusion and another 3 cycles of CD19 CAR T-cell and CD19+ FTC infusions, followed by TKI as consolidation therapy. CD19+ FTCs were given at 3 different doses. The phase 1 results of the first 15 patients, including 2 withdrawals, are presented. The most common adverse events were cytopenia (13/13) and hypogammaglobinemia (12/13). There was no incidence of cytokine release syndrome above grade 2 or immune effector cell-associated neurotoxicity syndrome or grade 4 nonhematological toxicities. All 13 patients achieved complete remission, including 12 patients with a complete molecular response (CMR) at the data cutoff. The relapse-free survival was 84%, and the overall survival was 83% with a median follow-up of 27 months. The total number of CD19-expressing cells decreased with an increasing CMR rate. CD19 CAR T cells survived for up to 40 months, whereas CD19+ FTCs vanished in 8 patients 3 months after the last infusion. These findings could form the basis for the development of an allo-HSCT-free consolidation paradigm. This trial was registered at www.clinicaltrials.gov as #NCT03984968.
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Affiliation(s)
- Li-Yun Chen
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Wen-Jie Gong
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Ming-Hao Li
- Shanghai Unicar-Therapy Bio-Medicine Technology Co, Ltd, Shanghai, China
| | - Hai-Xia Zhou
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Ming-Zhu Xu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Chong-Sheng Qian
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Li-Qing Kang
- Shanghai Unicar-Therapy Bio-Medicine Technology Co, Ltd, Shanghai, China
| | - Nan Xu
- Shanghai Unicar-Therapy Bio-Medicine Technology Co, Ltd, Shanghai, China
| | - Zhou Yu
- Shanghai Unicar-Therapy Bio-Medicine Technology Co, Ltd, Shanghai, China
| | - Man Qiao
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Tong-Tong Zhang
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Ling Zhang
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Zheng-Long Tian
- Gobroad Research Center, Gobroad Medical Group, Bejing, China
| | - Ai-Ning Sun
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Lei Yu
- Shanghai Unicar-Therapy Bio-Medicine Technology Co, Ltd, Shanghai, China
- Institute of Biomedical Engineering and Technology, Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - De-Pei Wu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Sheng-Li Xue
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
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7
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Pandya A, Shah Y, Kothari N, Postwala H, Shah A, Parekh P, Chorawala MR. The future of cancer immunotherapy: DNA vaccines leading the way. Med Oncol 2023; 40:200. [PMID: 37294501 PMCID: PMC10251337 DOI: 10.1007/s12032-023-02060-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 05/22/2023] [Indexed: 06/10/2023]
Abstract
Immuno-oncology has revolutionized cancer treatment and has opened up new opportunities for developing vaccination methods. DNA-based cancer vaccines have emerged as a promising approach to activating the bodily immune system against cancer. Plasmid DNA immunizations have shown a favorable safety profile and there occurs induction of generalized as well as tailored immune responses in preclinical and early-phase clinical experiments. However, these vaccines have notable limitations in immunogenicity and heterogeneity and these require refinements. DNA vaccine technology has been focusing on improving vaccine efficacy and delivery, with parallel developments in nanoparticle-based delivery systems and gene-editing technologies such as CRISPR/Cas9. This approach has showcased great promise in enhancing and tailoring the immune response to vaccination. Strategies to enhance the efficacy of DNA vaccines include the selection of appropriate antigens, optimizing insertion in a plasmid, and studying combinations of vaccines with conventional strategies and targeted therapies. Combination therapies have attenuated immunosuppressive activities in the tumor microenvironment and enhanced the capability of immune cells. This review provides an overview of the current framework of DNA vaccines in oncology and focuses on novel strategies, including established combination therapies and those still under development.The challenges that oncologists, scientists, and researchers need to overcome to establish DNA vaccines as an avant-garde approach to defeating cancer, are also emphasized. The clinical implications of the immunotherapeutic approaches and the need for predictive biomarkers have also been reviewed upon. We have also tried to extend the role of Neutrophil extracellular traps (NETs) to the DNA vaccines. The clinical implications of the immunotherapeutic approaches have also been reviewed upon. Ultimately, refining and optimizing DNA vaccines will enable harnessing the immune system's natural ability to recognize and eliminate cancer cells, leading the world towards a revolution in cancer cure.
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Affiliation(s)
- Aanshi Pandya
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Yesha Shah
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Nirjari Kothari
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Humzah Postwala
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Aayushi Shah
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Priyajeet Parekh
- AV Pharma LLC, 1545 University Blvd N Ste A, Jacksonville, FL, 32211, USA
| | - Mehul R Chorawala
- Department of Pharmacology and Pharmacy Practice, L. M. College of Pharmacy, Opp. Gujarat University, Ahmedabad, Gujarat, 380009, India.
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8
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Neoantigens: promising targets for cancer therapy. Signal Transduct Target Ther 2023; 8:9. [PMID: 36604431 PMCID: PMC9816309 DOI: 10.1038/s41392-022-01270-x] [Citation(s) in RCA: 219] [Impact Index Per Article: 219.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/14/2022] [Accepted: 11/27/2022] [Indexed: 01/07/2023] Open
Abstract
Recent advances in neoantigen research have accelerated the development and regulatory approval of tumor immunotherapies, including cancer vaccines, adoptive cell therapy and antibody-based therapies, especially for solid tumors. Neoantigens are newly formed antigens generated by tumor cells as a result of various tumor-specific alterations, such as genomic mutation, dysregulated RNA splicing, disordered post-translational modification, and integrated viral open reading frames. Neoantigens are recognized as non-self and trigger an immune response that is not subject to central and peripheral tolerance. The quick identification and prediction of tumor-specific neoantigens have been made possible by the advanced development of next-generation sequencing and bioinformatic technologies. Compared to tumor-associated antigens, the highly immunogenic and tumor-specific neoantigens provide emerging targets for personalized cancer immunotherapies, and serve as prospective predictors for tumor survival prognosis and immune checkpoint blockade responses. The development of cancer therapies will be aided by understanding the mechanism underlying neoantigen-induced anti-tumor immune response and by streamlining the process of neoantigen-based immunotherapies. This review provides an overview on the identification and characterization of neoantigens and outlines the clinical applications of prospective immunotherapeutic strategies based on neoantigens. We also explore their current status, inherent challenges, and clinical translation potential.
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Hiatt JB, Sandborg H, Garrison SM, Arnold HU, Liao SY, Norton JP, Friesen TJ, Wu F, Sutherland KD, Rienhoff HY, Martins R, Houghton AM, Srivastava S, MacPherson D. Inhibition of LSD1 with Bomedemstat Sensitizes Small Cell Lung Cancer to Immune Checkpoint Blockade and T-Cell Killing. Clin Cancer Res 2022; 28:4551-4564. [PMID: 35920742 PMCID: PMC9844673 DOI: 10.1158/1078-0432.ccr-22-1128] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 06/24/2022] [Accepted: 07/28/2022] [Indexed: 01/19/2023]
Abstract
PURPOSE The addition of immune checkpoint blockade (ICB) to platinum/etoposide chemotherapy changed the standard of care for small cell lung cancer (SCLC) treatment. However, ICB addition only modestly improved clinical outcomes, likely reflecting the high prevalence of an immunologically "cold" tumor microenvironment in SCLC, despite high mutational burden. Nevertheless, some patients clearly benefit from ICB and recent reports have associated clinical responses to ICB in SCLC with (i) decreased neuroendocrine characteristics and (ii) activation of NOTCH signaling. We previously showed that inhibition of the lysine-specific demethylase 1a (LSD1) demethylase activates NOTCH and suppresses neuroendocrine features of SCLC, leading us to investigate whether LSD1 inhibition would enhance the response to PD-1 inhibition in SCLC. EXPERIMENTAL DESIGN We employed a syngeneic immunocompetent model of SCLC, derived from a genetically engineered mouse model harboring Rb1/Trp53 inactivation, to investigate combining the LSD1 inhibitor bomedemstat with anti-PD-1 therapy. In vivo experiments were complemented by cell-based studies in murine and human models. RESULTS Bomedemstat potentiated responses to PD-1 inhibition in a syngeneic model of SCLC, resulting in increased CD8+ T-cell infiltration and strong tumor growth inhibition. Bomedemstat increased MHC class I expression in mouse SCLC tumor cells in vivo and augmented MHC-I induction by IFNγ and increased killing by tumor-specific T cells in cell culture. CONCLUSIONS LSD1 inhibition increased MHC-I expression and enhanced responses to PD-1 inhibition in vivo, supporting a new clinical trial to combine bomedemstat with standard-of-care PD-1 axis inhibition in SCLC.
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Affiliation(s)
- Joseph B. Hiatt
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA,Veterans Affairs Puget Sound Healthcare System - Seattle Branch, Seattle, Washington 98108, USA,Division of Medical Oncology, Department of Medicine, University of Washington, Seattle, Washington 98109, USA
| | - Holly Sandborg
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA
| | - Sarah M. Garrison
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA
| | - Henry U. Arnold
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA
| | - Sheng-You Liao
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA
| | - Justin P. Norton
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA
| | - Travis J. Friesen
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA
| | - Feinan Wu
- Genomics and Bioinformatics Shared Resource, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA
| | - Kate D. Sutherland
- ACRF Cancer Biology and Stem Cells Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia,Department of Medical Biology, The University of Melbourne, Parkville, Victoria 3052, Australia
| | | | - Renato Martins
- Division of Medical Oncology, Department of Medicine, University of Washington, Seattle, Washington 98109, USA
| | - A. McGarry Houghton
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA,Pulmonary and Critical Care Division, University of Washington, Seattle, Washington, USA
| | - Shivani Srivastava
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA
| | - David MacPherson
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA,Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA,Department of Genome Sciences, University of Washington, Seattle, Washington 98195, USA
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10
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Su JY, Li WH, Li YM. New opportunities for immunomodulation of the tumour microenvironment using chemical tools. Chem Soc Rev 2022; 51:7944-7970. [PMID: 35996977 DOI: 10.1039/d2cs00486k] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Immunotherapy is recognised as an attractive method for the treatment of cancer, and numerous treatment strategies have emerged over recent years. Investigations of the tumour microenvironment (TME) have led to the identification of many potential therapeutic targets and methods. However, many recently applied immunotherapies are based on previously identified strategies, such as boosting the immune response by combining commonly used stimulators, and the release of drugs through changes in pH. Although methodological improvements such as structural optimisation and combining strategies can be undertaken, applying those novel targets and methods in immunotherapy remains an important goal. In this review, we summarise the latest research on the TME, and discuss how small molecules, immune cells, and their interactions with tumour cells can be regulated in the TME. Additionally, the techniques currently employed for delivery of these agents to the TME are also mentioned. Strategies to modulate cell phenotypes and interactions between immune cells and tumours are mainly discussed. We consider both modulatory and targeting methods aiming to bridge the gap between the TME and chemical modulation thereof.
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Affiliation(s)
- Jing-Yun Su
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, 100084 Beijing, China.
| | - Wen-Hao Li
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, 100084 Beijing, China.
| | - Yan-Mei Li
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, 100084 Beijing, China. .,Center for Synthetic and Systems Biology, Tsinghua University, 100084 Beijing, China.,Beijing Institute for Brain Disorders, 100069 Beijing, China
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11
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Sellars MC, Wu CJ, Fritsch EF. Cancer vaccines: Building a bridge over troubled waters. Cell 2022; 185:2770-2788. [PMID: 35835100 PMCID: PMC9555301 DOI: 10.1016/j.cell.2022.06.035] [Citation(s) in RCA: 114] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/19/2022] [Accepted: 06/17/2022] [Indexed: 12/16/2022]
Abstract
Cancer vaccines aim to direct the immune system to eradicate cancer cells. Here we review the essential immunologic concepts underpinning natural immunity and highlight the multiple unique challenges faced by vaccines targeting cancer. Recent technological advances in mass spectrometry, neoantigen prediction, genetically and pharmacologically engineered mouse models, and single-cell omics have revealed new biology, which can help to bridge this divide. We particularly focus on translationally relevant aspects, such as antigen selection and delivery and the monitoring of human post-vaccination responses, and encourage more aggressive exploration of novel approaches.
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Affiliation(s)
- MacLean C Sellars
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Catherine J Wu
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Harvard Medical School, Boston, MA, USA; Broad Institute of MIT and Harvard, Cambridge, MA, USA; Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA.
| | - Edward F Fritsch
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Broad Institute of MIT and Harvard, Cambridge, MA, USA.
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12
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Abstract
Cancer vaccines have emerged as a powerful and clinically viable therapeutic modality to reduce tumor burden, eradicate residual cancer cells and prevent relapse. The past years have witnessed rapid advances in various scientific and engineering approaches to next-generation cancer vaccines. This perspective highlights the cutting-edge technologies to elicit robust, durable and cancer-specific immune responses as well as interesting research directions in augmenting the therapeutic efficacies and reducing the systemic side effects of cancer vaccines. The featured technologies include (i) bottom-up high-throughput screening strategies to identify neoantigens as well as optimal delivery systems for tumor antigens and/or adjuvant; (ii) top-down knowledgebased strategies to de novo design effective delivery platforms and to engineer tissuetargeting specificity; and (iii) synergizing cancer vaccines with the clinical immunotherapeutic practices such as CAR-T and anti-PD-1 therapies.
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13
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Díez-Pascual AM. Surface Engineering of Nanomaterials with Polymers, Biomolecules, and Small Ligands for Nanomedicine. MATERIALS (BASEL, SWITZERLAND) 2022; 15:3251. [PMID: 35591584 PMCID: PMC9104878 DOI: 10.3390/ma15093251] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/26/2022] [Accepted: 04/28/2022] [Indexed: 11/18/2022]
Abstract
Nanomedicine is a speedily growing area of medical research that is focused on developing nanomaterials for the prevention, diagnosis, and treatment of diseases. Nanomaterials with unique physicochemical properties have recently attracted a lot of attention since they offer a lot of potential in biomedical research. Novel generations of engineered nanostructures, also known as designed and functionalized nanomaterials, have opened up new possibilities in the applications of biomedical approaches such as biological imaging, biomolecular sensing, medical devices, drug delivery, and therapy. Polymers, natural biomolecules, or synthetic ligands can interact physically or chemically with nanomaterials to functionalize them for targeted uses. This paper reviews current research in nanotechnology, with a focus on nanomaterial functionalization for medical applications. Firstly, a brief overview of the different types of nanomaterials and the strategies for their surface functionalization is offered. Secondly, different types of functionalized nanomaterials are reviewed. Then, their potential cytotoxicity and cost-effectiveness are discussed. Finally, their use in diverse fields is examined in detail, including cancer treatment, tissue engineering, drug/gene delivery, and medical implants.
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Affiliation(s)
- Ana M Díez-Pascual
- Universidad de Alcalá, Facultad de Ciencias, Departamento de Química Analítica, Química Física e Ingeniería Química, Ctra. Madrid-Barcelona, Km. 33.6, 28805 Alcalá de Henares, Madrid, Spain
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14
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Nutt WS, Srivastava S. Special delivery! CAR-T cells transport RN7SL1 to the tumor microenvironment. Trends Mol Med 2021; 27:1019-1021. [PMID: 34593322 DOI: 10.1016/j.molmed.2021.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 09/16/2021] [Indexed: 12/14/2022]
Abstract
In a recent Cell publication, Johnson et al. demonstrate that engineering chimeric antigen receptor (CAR)-T cells to produce RN7SL1, a novel RNA adjuvant that activates the viral sensors RIG-I and MDA5, improves intrinsic CAR-T cell function, activates tumor-infiltrating myeloid cells, and enhances endogenous tumor-specific T cell responses, resulting in improved tumor control despite CAR antigen loss in multiple mouse models.
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Affiliation(s)
- W Sam Nutt
- Human Biology Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Shivani Srivastava
- Human Biology Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.
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