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Wang H, Yao Z, Kang K, Zhou L, Xiu W, Sun J, Xie C, Yu M, Li Y, Zhang Y, Zheng Y, Lin G, Pan X, Wu Y, Luo R, Wang L, Tang M, Liao S, Zhu J, Zhou X, Zhang X, Xu Y, Liu Y, Peng F, Wang J, Xiang L, Yin L, Deng L, Huang M, Gong Y, Zou B, Wang H, Wu L, Yuan Z, Bi N, Fan M, Xu Y, Tong R, Yi L, Gan L, Xue J, Mo X, Chen C, Na F, Lu Y. Preclinical study and phase II trial of adapting low-dose radiotherapy to immunotherapy in small cell lung cancer. MED 2024:S2666-6340(24)00248-4. [PMID: 38964333 DOI: 10.1016/j.medj.2024.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 03/11/2024] [Accepted: 06/12/2024] [Indexed: 07/06/2024]
Abstract
BACKGROUND Immune checkpoint inhibitors (ICIs) provide modest but unsatisfactory benefits for extensive-stage small cell lung cancer (ES-SCLC). Developing strategies for treating ES-SCLC is critical. METHODS We preliminarily explored the outcomes of salvage low-dose radiotherapy (LDRT) plus ICI on refractory SCLC patients. Next, we evaluated the combinational efficacy in murine SCLC. The tumor immune microenvironment (TIME) was analyzed for mechanistic study. Subsequently, we conducted a multicenter, prospective phase II trial that administered concurrent thoracic LDRT plus chemoimmunotherapy to treatment-naive ES-SCLC patients (MATCH trial, NCT04622228). The primary endpoint was confirmed objective response rate (ORR), and the key secondary endpoints included progression-free survival (PFS) and safety. FINDINGS Fifteen refractory SCLC patients treated with LDRT plus ICI were retrospectively reviewed. The ORR was 73.3% (95% confidence interval [CI], 44.9-92.2). We identified a specific dose of LDRT (15 Gy/5 fractions) that exhibited growth retardation and improved survival in murine SCLC when combined with ICIs. This combination recruited a special T cell population, TCF1+ PD-1+ CD8+ stem-like T cells, from tumor-draining lymph nodes into the TIME. The MATCH trial showed a confirmed ORR of 87.5% (95% CI, 75.9-94.8). The median PFS was 6.9 months (95% CI, 5.4-9.3). CONCLUSIONS These findings verified that LDRT plus chemoimmunotherapy was safe, feasible, and effective for ES-SCLC, warranting further investigation. FUNDING This research was funded by West China Hospital (no. ZYJC21003), the National Natural Science Foundation of China (no. 82073336), and the MATCH trial was fully funded by Roche (China) Holding Ltd. (RCHL) and Shanghai Roche Pharmaceuticals Ltd. (SRPL).
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Affiliation(s)
- Hui Wang
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Zhuoran Yao
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China; Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Kai Kang
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China; Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Lin Zhou
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China; Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Weigang Xiu
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Jianguo Sun
- Cancer Institute, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Conghua Xie
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Min Yu
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yanying Li
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yan Zhang
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China; Center of Lung Cancer, West China Hospital, Sichuan University, Chengdu, China
| | - Yue Zheng
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Guo Lin
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xiangyu Pan
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yijun Wu
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China; Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Ren Luo
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China; Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Laduona Wang
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Min Tang
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Shuangsi Liao
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Jiang Zhu
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaojuan Zhou
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China; Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xuanwei Zhang
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China; Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yong Xu
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China; Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yongmei Liu
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China; Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Feng Peng
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Jin Wang
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China; Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Lisha Xiang
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Limei Yin
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China; Department of Health Management & Institute of Health Management, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Lei Deng
- University of Washington School of Medicine/Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Meijuan Huang
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Youling Gong
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China; Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Bingwen Zou
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China; Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Hui Wang
- Department of Radiation Oncology, Hunan Cancer Hospital, Changsha, China
| | - Lin Wu
- Department of Thoracic Medicine, Hunan Cancer Hospital, Changsha, China
| | - Zhiyong Yuan
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Nan Bi
- Department of Radiation Oncology, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Min Fan
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Yaping Xu
- Department of Radiation Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ruizhan Tong
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Linglu Yi
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Lu Gan
- Research Laboratory of Emergency Medicine, Department of Emergency Medicine, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Jianxin Xue
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China; Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xianming Mo
- Laboratory of Stem Cell Biology, West China Hospital, Sichuan University, Chengdu, China
| | - Chong Chen
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Feifei Na
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China.
| | - You Lu
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China; Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China.
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2
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Giglio RM, Hou N, Wyatt A, Hong J, Shi L, Vaikunthan M, Fuchs H, Nima JP, Malinowski SW, Ligon KL, McFaline-Figueroa JR, Yosef N, Azizi E, McFaline-Figueroa JL. A heterogeneous pharmaco-transcriptomic landscape induced by targeting a single oncogenic kinase. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.08.587960. [PMID: 38645018 PMCID: PMC11030430 DOI: 10.1101/2024.04.08.587960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Over-activation of the epidermal growth factor receptor (EGFR) is a hallmark of glioblastoma. However, EGFR-targeted therapies have led to minimal clinical response. While delivery of EGFR inhibitors (EGFRis) to the brain constitutes a major challenge, how additional drug-specific features alter efficacy remains poorly understood. We apply highly multiplex single-cell chemical genomics to define the molecular response of glioblastoma to EGFRis. Using a deep generative framework, we identify shared and drug-specific transcriptional programs that group EGFRis into distinct molecular classes. We identify programs that differ by the chemical properties of EGFRis, including induction of adaptive transcription and modulation of immunogenic gene expression. Finally, we demonstrate that pro-immunogenic expression changes associated with a subset of tyrphostin family EGFRis increase the ability of T-cells to target glioblastoma cells.
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Affiliation(s)
- Ross M. Giglio
- Department of Molecular Pharmacology and Therapeutics, Columbia University Medical Center, New York, NY 10032, USA
| | - Nicholas Hou
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Adeya Wyatt
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Justin Hong
- Department of Computer Science, Columbia University, New York, NY 10027, USA
| | - Lingting Shi
- Irving Institute for Cancer Dynamics, Columbia University, New York, NY 10027, USA
| | - Mathini Vaikunthan
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Henry Fuchs
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Jose Pomarino Nima
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Seth W. Malinowski
- Department of Oncologic Pathology, Brigham and Women’s Hospital, Boston Children’s Hospital, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Keith L. Ligon
- Department of Oncologic Pathology, Brigham and Women’s Hospital, Boston Children’s Hospital, Dana-Farber Cancer Institute, Boston, MA 02215, USA
- Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
| | | | - Nir Yosef
- Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, Berkeley, CA 94720, USA
- Center for Computational Biology, University of California, Berkeley, Berkeley, CA 94720, USA
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - Elham Azizi
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
- Department of Computer Science, Columbia University, New York, NY 10027, USA
- Irving Institute for Cancer Dynamics, Columbia University, New York, NY 10027, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA
- Data Science Institute, Columbia University, New York, NY 10027, USA
| | - José L. McFaline-Figueroa
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
- Irving Institute for Cancer Dynamics, Columbia University, New York, NY 10027, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA
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3
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Qin S, Xu Y, Yu S, Han W, Fan S, Ai W, Zhang K, Wang Y, Zhou X, Shen Q, Gong K, Sun L, Zhang Z. Molecular classification and tumor microenvironment characteristics in pheochromocytomas. eLife 2024; 12:RP87586. [PMID: 38407266 PMCID: PMC10942623 DOI: 10.7554/elife.87586] [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: 02/27/2024] Open
Abstract
Pheochromocytomas (PCCs) are rare neuroendocrine tumors that originate from chromaffin cells in the adrenal gland. However, the cellular molecular characteristics and immune microenvironment of PCCs are incompletely understood. Here, we performed single-cell RNA sequencing (scRNA-seq) on 16 tissues from 4 sporadic unclassified PCC patients and 1 hereditary PCC patient with Von Hippel-Lindau (VHL) syndrome. We found that intra-tumoral heterogeneity was less extensive than the inter-individual heterogeneity of PCCs. Further, the unclassified PCC patients were divided into two types, metabolism-type (marked by NDUFA4L2 and COX4I2) and kinase-type (marked by RET and PNMT), validated by immunohistochemical staining. Trajectory analysis of tumor evolution revealed that metabolism-type PCC cells display phenotype of consistently active metabolism and increased metastasis potential, while kinase-type PCC cells showed decreased epinephrine synthesis and neuron-like phenotypes. Cell-cell communication analysis showed activation of the annexin pathway and a strong inflammation reaction in metabolism-type PCCs and activation of FGF signaling in the kinase-type PCC. Although multispectral immunofluorescence staining showed a lack of CD8+ T cell infiltration in both metabolism-type and kinase-type PCCs, only the kinase-type PCC exhibited downregulation of HLA-I molecules that possibly regulated by RET, suggesting the potential of combined therapy with kinase inhibitors and immunotherapy for kinase-type PCCs; in contrast, the application of immunotherapy to metabolism-type PCCs (with antigen presentation ability) is likely unsuitable. Our study presents a single-cell transcriptomics-based molecular classification and microenvironment characterization of PCCs, providing clues for potential therapeutic strategies to treat PCCs.
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Affiliation(s)
- Sen Qin
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Department of Urology, Peking University First Hospital, Peking University Health Science CenterBeijingChina
| | - Yawei Xu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Department of Urology, Peking University First Hospital, Peking University Health Science CenterBeijingChina
| | - Shimiao Yu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Department of Urology, Peking University First Hospital, Peking University Health Science CenterBeijingChina
| | - Wencong Han
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Department of Urology, Peking University First Hospital, Peking University Health Science CenterBeijingChina
| | - Shiheng Fan
- Shenzhen Institute of Ladder for Cancer ResearchShenzhenChina
| | - Wenxiang Ai
- Shenzhen Institute of Ladder for Cancer ResearchShenzhenChina
| | - Kenan Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Department of Urology, Peking University First Hospital, Peking University Health Science CenterBeijingChina
| | - Yizhou Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Department of Urology, Peking University First Hospital, Peking University Health Science CenterBeijingChina
| | - Xuehong Zhou
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Department of Urology, Peking University First Hospital, Peking University Health Science CenterBeijingChina
| | - Qi Shen
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Department of Urology, Peking University First Hospital, Peking University Health Science CenterBeijingChina
| | - Kan Gong
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Department of Urology, Peking University First Hospital, Peking University Health Science CenterBeijingChina
| | - Luyang Sun
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Department of Urology, Peking University First Hospital, Peking University Health Science CenterBeijingChina
| | - Zheng Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Department of Urology, Peking University First Hospital, Peking University Health Science CenterBeijingChina
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4
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Galsky MD, Guan X, Rishipathak D, Rapaport AS, Shehata HM, Banchereau R, Yuen K, Varfolomeev E, Hu R, Han CJ, Li H, Liang Y, Vucic D, Wang L, Zhu J, Yu H, Herbst RH, Hajaj E, Kiner E, Bamias A, De Santis M, Davis ID, Arranz JÁ, Kikuchi E, Bernhard S, Williams P, Lee C, Mellman I, Sanjabi S, Johnston R, Black PC, Grande E, Mariathasan S. Immunomodulatory effects and improved outcomes with cisplatin- versus carboplatin-based chemotherapy plus atezolizumab in urothelial cancer. Cell Rep Med 2024; 5:101393. [PMID: 38280376 PMCID: PMC10897541 DOI: 10.1016/j.xcrm.2024.101393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 03/09/2023] [Accepted: 01/03/2024] [Indexed: 01/29/2024]
Abstract
In metastatic urothelial cancer (mUC), cisplatin versus carboplatin leads to durable disease control in a subset of patients. The IMvigor130 trial reveals more favorable effects with atezolizumab combined with gemcitabine and cisplatin (GemCis) versus gemcitabine and carboplatin (GemCarbo). This study investigates the immunomodulatory effects of cisplatin as a potential explanation for these observations. Our findings indicate that improved outcomes with GemCis versus GemCarbo are primarily observed in patients with pretreatment tumors exhibiting features of restrained adaptive immunity. In addition, GemCis versus GemCarbo ± atezolizumab induces transcriptional changes in circulating immune cells, including upregulation of antigen presentation and T cell activation programs. In vitro experiments demonstrate that cisplatin, compared with carboplatin, exerts direct immunomodulatory effects on cancer cells, promoting dendritic cell activation and antigen-specific T cell killing. These results underscore the key role of immune modulation in cisplatin's efficacy in mUC and highlight the importance of specific chemotherapy backbones in immunotherapy combination regimens.
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Affiliation(s)
- Matthew D Galsky
- Division of Hematology and Medical Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | | | | | | | | | | | - Kobe Yuen
- Genentech Inc., South San Francisco, CA 94080, USA
| | | | - Ruozhen Hu
- Genentech Inc., South San Francisco, CA 94080, USA
| | | | - Haocheng Li
- Hoffmann-La Roche Ltd, Mississauga, ON, Canada
| | - Yuxin Liang
- Genentech Inc., South San Francisco, CA 94080, USA
| | | | - Li Wang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA; GeneDx, Stamford, CT, USA
| | - Jun Zhu
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA; GeneDx, Stamford, CT, USA
| | | | | | | | | | | | - Maria De Santis
- Department of Urology, Charité - Universitätsmedizin, Berlin, Germany; Department of Urology, Medical University of Vienna, Vienna, Austria
| | - Ian D Davis
- Eastern Health Clinical School, Monash University, Melbourne, VIC, Australia
| | | | - Eiji Kikuchi
- St. Marianna University School of Medicine, Kawasaki, Japan
| | | | | | - Chooi Lee
- Roche Products Ltd, Welwyn Garden City, UK
| | - Ira Mellman
- Genentech Inc., South San Francisco, CA 94080, USA
| | | | | | - Peter C Black
- Vancouver Prostate Centre, University of British Columbia, Vancouver, BC, Canada
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5
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Bergom HE, Sena LA, Day A, Miller B, Miller CD, Lozada JR, Zorko N, Wang J, Shenderov E, Lobo FP, Caramella-Pereira F, Marchionni L, Drake CG, Lotan T, De Marzo AM, Hwang J, Antonarakis ES. Divergent immune microenvironments in two tumor nodules from a patient with mismatch repair-deficient prostate cancer. NPJ Genom Med 2024; 9:7. [PMID: 38253539 PMCID: PMC10803790 DOI: 10.1038/s41525-024-00392-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
Patients with prostate cancer (PC) generally do not respond favorably to immune checkpoint inhibitors, which may be due to a low abundance of tumor-infiltrating lymphocytes even when mutational load is high. Here, we identified a patient who presented with high-grade primary prostate cancer with two adjacent tumor nodules. While both nodules were mismatch repair-deficient (MMRd), exhibited pathogenic MSH2 and MSH6 alterations, had a high tumor mutational burden (TMB), and demonstrated high microsatellite instability (MSI), they had markedly distinct immune phenotypes. The first displayed a dense infiltrate of lymphocytes ("hot nodule"), while the second displayed significantly fewer infiltrating lymphocytes ("cold nodule"). Whole-exome DNA analysis found that both nodules shared many identical mutations, indicating that they were derived from a single clone. However, the cold nodule appeared to be sub-clonal relative to the hot nodule, suggesting divergent evolution of the cold nodule from the hot nodule. Whole-transcriptome RNA analysis found that the cold nodule demonstrated lower expression of genes related to antigen presentation (HLA) and, paradoxically, classical tumor immune tolerance markers such as PD-L1 (CD274) and CTLA-4. Immune cell deconvolution suggested that the hot nodule was enriched not only in CD8+ and CD4 + T lymphocytes, but also in M1 macrophages, activated NK cells, and γδ T cells compared to the cold nodule. This case highlights that MMRd/TMB-high PC can evolve to minimize an anti-tumor immune response, and nominates downregulation of antigen presentation machinery (HLA loss) as a potential mechanism of adaptive immune evasion in PC.
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Affiliation(s)
- Hannah E Bergom
- Department of Medicine, University of Minnesota-Twin Cities, Minneapolis, MN, USA
- Division of Hematology, Oncology and Transplantation, University of Minnesota-Twin Cities, Minneapolis, MN, USA
| | - Laura A Sena
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins, Baltimore, MD, USA
| | - Abderrahman Day
- Department of Medicine, University of Minnesota-Twin Cities, Minneapolis, MN, USA
- Division of Hematology, Oncology and Transplantation, University of Minnesota-Twin Cities, Minneapolis, MN, USA
- Institute for Health Informatics, University of Minnesota, Minneapolis, MN, USA
| | - Benjamin Miller
- Department of Medicine, University of Minnesota-Twin Cities, Minneapolis, MN, USA
| | - Carly D Miller
- Department of Medicine, University of Minnesota-Twin Cities, Minneapolis, MN, USA
| | - John R Lozada
- Department of Medicine, University of Minnesota-Twin Cities, Minneapolis, MN, USA
- Division of Hematology, Oncology and Transplantation, University of Minnesota-Twin Cities, Minneapolis, MN, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Nicholas Zorko
- Department of Medicine, University of Minnesota-Twin Cities, Minneapolis, MN, USA
- Division of Hematology, Oncology and Transplantation, University of Minnesota-Twin Cities, Minneapolis, MN, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Jinhua Wang
- Department of Medicine, University of Minnesota-Twin Cities, Minneapolis, MN, USA
- Institute for Health Informatics, University of Minnesota, Minneapolis, MN, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Eugene Shenderov
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD, USA
- The Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Francisco Pereira Lobo
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins, Baltimore, MD, USA
- Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | | | - Luigi Marchionni
- Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Charles G Drake
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins, Baltimore, MD, USA
- Janssen Research and Development, LLC, Springhouse, PA, USA
| | - Tamara Lotan
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins, Baltimore, MD, USA
| | - Angelo M De Marzo
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins, Baltimore, MD, USA
| | - Justin Hwang
- Department of Medicine, University of Minnesota-Twin Cities, Minneapolis, MN, USA
- Division of Hematology, Oncology and Transplantation, University of Minnesota-Twin Cities, Minneapolis, MN, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Emmanuel S Antonarakis
- Department of Medicine, University of Minnesota-Twin Cities, Minneapolis, MN, USA.
- Division of Hematology, Oncology and Transplantation, University of Minnesota-Twin Cities, Minneapolis, MN, USA.
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA.
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6
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Jeon SH, Song C, Eom KY, Kim IA, Kim JS. Modulation of CD8 + T Cell Responses by Radiotherapy-Current Evidence and Rationale for Combination with Immune Checkpoint Inhibitors. Int J Mol Sci 2023; 24:16691. [PMID: 38069014 PMCID: PMC10706388 DOI: 10.3390/ijms242316691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/17/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
Radiotherapy for cancer has been known to affect the responses of immune cells, especially those of CD8+ T cells that play a pivotal role in anti-tumor immunity. Clinical success of immune checkpoint inhibitors led to an increasing interest in the ability of radiation to modulate CD8+ T cell responses. Recent studies that carefully analyzed CD8+ T cell responses following radiotherapy suggest the beneficial roles of radiotherapy on anti-tumor immunity. In addition, numerous clinical trials to evaluate the efficacy of combining radiotherapy with immune checkpoint inhibitors are currently undergoing. In this review, we summarize the current status of knowledge regarding the changes in CD8+ T cells following radiotherapy from various preclinical and clinical studies. Furthermore, key biological mechanisms that underlie such modulation, including both direct and indirect effects, are described. Lastly, we discuss the current evidence and essential considerations for harnessing radiotherapy as a combination partner for immune checkpoint inhibitors.
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Affiliation(s)
| | | | | | | | - Jae-Sung Kim
- Department of Radiation Oncology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam 13620, Republic of Korea; (S.H.J.); (C.S.); (K.-Y.E.); (I.A.K.)
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7
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Wei Y, Zheng L, Yang X, Luo Y, Yi C, Gou H. Identification of Immune Subtypes and Candidate mRNA Vaccine Antigens in Small Cell Lung Cancer. Oncologist 2023; 28:e1052-e1064. [PMID: 37399175 PMCID: PMC10628581 DOI: 10.1093/oncolo/oyad193] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 06/12/2023] [Indexed: 07/05/2023] Open
Abstract
BACKGROUND Immune checkpoint inhibitors (ICIs) have demonstrated promising outcomes in small cell lung cancer (SCLC), but not all patients benefit from it. Thus, developing precise treatments for SCLC is a particularly urgent need. In our study, we constructed a novel phenotype for SCLC based on immune signatures. METHODS We clustered patients with SCLC hierarchically in 3 publicly available datasets according to the immune signatures. ESTIMATE and CIBERSORT algorithm were used to evaluate the components of the tumor microenvironment. Moreover, we identified potential mRNA vaccine antigens for patients with SCLC, and qRT-PCR were performed to detect the gene expression. RESULTS We identified 2 SCLC subtypes and named Immunity High (Immunity_H) and Immunity Low (Immunity_L). Meanwhile, we obtained generally consistent results by analyzing different datasets, suggesting that this classification was reliable. Immunity_H contained the higher number of immune cells and a better prognosis compared to Immunity_L. Gene-set enrichment analysis revealed that several immune-related pathways such as cytokine-cytokine receptor interaction, programmed cell death-Ligand 1 expression and programmed cell death-1 checkpoint pathway in cancer were hyperactivated in the Immunity_H. However, most of the pathways enriched in the Immunity_L were not associated with immunity. Furthermore, we identified 5 potential mRNA vaccine antigens of SCLC (NEK2, NOL4, RALYL, SH3GL2, and ZIC2), and they were expressed higher in Immunity_L, it indicated that Immunity_L maybe more suitable for tumor vaccine development. CONCLUSIONS SCLC can be divided into Immunity_H and Immunity_L subtypes. Immunity_H may be more suitable for treatment with ICIs. NEK2, NOL4, RALYL, SH3GL2, and ZIC2 may be act as potential antigens for SCLC.
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Affiliation(s)
- Yuanfeng Wei
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Lingnan Zheng
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Xi Yang
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Yong Luo
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Cheng Yi
- Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Hongfeng Gou
- Gastric Cancer Center, Division of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
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8
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Xiao G, Zhao Y, Wang X, Zeng C, Luo F, Jing J. Photothermally sensitive gold nanocage augments the antitumor efficiency of immune checkpoint blockade in immune "cold" tumors. Front Immunol 2023; 14:1279221. [PMID: 37942337 PMCID: PMC10628457 DOI: 10.3389/fimmu.2023.1279221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 10/12/2023] [Indexed: 11/10/2023] Open
Abstract
Introduction Immune checkpoint blockade (ICB) has revolutionized the therapy landscape of malignancy melanoma. However, the clinical benefits from this regimen remain limited, especially in tumors lacking infiltrated T cells (known as "cold" tumors). Nanoparticle-mediated photothermal therapy (PTT) has demonstrated improved outcomes in the ablation of solid tumors by inducing immunogenic cell death (ICD) and reshaping the tumor immune microenvironment. Therefore, the combination of PTT and ICB is a promising regimen for patients with "cold" tumors. Methods A second near-infrared (NIR-II) light-activated gold nanocomposite AuNC@SiO2@HA with AuNC as a kernel, silica as shell, and hyaluronic acid (HA) polymer as a targeting molecule, was synthesized for PTT. The fabricated AuNC@SiO2@HA nanocomposites underwent various in vitro studies to characterize their physicochemical properties, light absorption spectra, photothermal conversion ability, cellular uptake ability, and bioactivities. The synergistic effect of AuNC@SiO2@HA-mediated PTT and anti-PD-1 immunotherapy was evaluated using a mouse model of immune "cold" melanoma. The tumor-infiltrating T cells were assessed by immunofluorescence staining and flow cytometry. Furthermore, the mechanism of AuNC@SiO2@HA-induced T-cell infiltration was investigated through immunochemistry staining of the ICD-related markers, including HSP70, CRT, and HMGB1. Finally, the safety of AuNC@SiO2@HA nanocomposites was evaluated in vivo. Results The AuNC@SiO2@HA nanocomposite with absorption covering 1064 nm was successfully synthesized. The nano-system can be effectively delivered into tumor cells, transform the optical energy into thermal energy upon laser irradiation, and induce tumor cell apoptosis in vitro. In an in vivo mouse melanoma model, AuNC@SiO2@HA nanocomposites significantly induced ICD and T-cell infiltration. The combination of AuNC@SiO2@HA and anti-PD-1 antibody synergistically inhibited tumor growth via stimulating robust T lymphocyte immune responses. Discussion The combination of AuNC@SiO2@HA-mediated PTT and anti-PD-1 immunotherapy proposed a neoteric strategy for oncotherapy, which efficiently convert the immune "cold" tumors into "hot" ones.
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Affiliation(s)
- Guixiu Xiao
- State Key Laboratory of Biotherapy, West China Hospital, Institute for Breast Health Medicine, Sichuan University, Chengdu, Sichuan, China
- Department of Medical Oncology, Cancer Center, Lung Cancer Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yujie Zhao
- State Key Laboratory of Biotherapy, West China Hospital, Institute for Breast Health Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Xueyan Wang
- State Key Laboratory of Biotherapy, West China Hospital, Institute for Breast Health Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Chuan Zeng
- Radiology Department, Sichuan Jianzhu Hospital, Chengdu, Sichuan, China
| | - Feng Luo
- Department of Medical Oncology, Cancer Center, Lung Cancer Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Jing Jing
- State Key Laboratory of Biotherapy, West China Hospital, Institute for Breast Health Medicine, Sichuan University, Chengdu, Sichuan, China
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9
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De Re V, Tornesello ML, Racanelli V, Prete M, Steffan A. Non-Classical HLA Class 1b and Hepatocellular Carcinoma. Biomedicines 2023; 11:1672. [PMID: 37371767 DOI: 10.3390/biomedicines11061672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/02/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
A number of studies are underway to gain a better understanding of the role of immunity in the pathogenesis of hepatocellular carcinoma and to identify subgroups of individuals who may benefit the most from systemic therapy according to the etiology of their tumor. Human leukocyte antigens play a key role in antigen presentation to T cells. This is fundamental to the host's defense against pathogens and tumor cells. In addition, HLA-specific interactions with innate lymphoid cell receptors, such those present on natural killer cells and innate lymphoid cell type 2, have been shown to be important activators of immune function in the context of several liver diseases. More recent studies have highlighted the key role of members of the non-classical HLA-Ib and the transcript adjacent to the HLA-F locus, FAT10, in hepatocarcinoma. The present review analyzes the major contribution of these molecules to hepatic viral infection and hepatocellular prognosis. Particular attention has been paid to the association of natural killer and Vδ2 T-cell activation, mediated by specific HLA class Ib molecules, with risk assessment and novel treatment strategies to improve immunotherapy in HCC.
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Affiliation(s)
- Valli De Re
- Immunopathology and Cancer Biomarkers Unit, Centro di Riferimento Oncologico di Aviano (CRO), Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS), 33081 Aviano, Italy
| | - Maria Lina Tornesello
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", 80131 Naples, Italy
| | - Vito Racanelli
- Department of Interdisciplinary Medicine, School of Medicine, 'Aldo Moro' University of Bari, 70124 Bari, Italy
| | - Marcella Prete
- Department of Interdisciplinary Medicine, School of Medicine, 'Aldo Moro' University of Bari, 70124 Bari, Italy
| | - Agostino Steffan
- Immunopathology and Cancer Biomarkers Unit, Centro di Riferimento Oncologico di Aviano (CRO), Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS), 33081 Aviano, Italy
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10
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Kang K, Wu Y, Yao Z, Lu Y. Tackling the current dilemma of immunotherapy in extensive-stage small cell lung cancer: A promising strategy of combining with radiotherapy. Cancer Lett 2023; 565:216239. [PMID: 37211066 DOI: 10.1016/j.canlet.2023.216239] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/05/2023] [Accepted: 05/17/2023] [Indexed: 05/23/2023]
Abstract
Progress in the treatment of small cell lung cancer (SCLC) has been modest over the past decades until the advent of immune checkpoint inhibitors, which have redefined the standard first-line treatment for extensive-stage SCLC (ES-SCLC). However, despite the positive results of several clinical trials, the limited survival benefit achieved suggests that the priming and sustaining of immunotherapeutic efficacy are poor and further investigation is urgently needed. In this review, we aim to summarize the potential mechanisms underlying the limited efficacy of immunotherapy and intrinsic resistance in ES-SCLC, including impaired antigen presentation and limited T cell infiltration. Moreover, to tackle the current dilemma, given the synergistic effects of radiotherapy on immunotherapy, especially the unique advantages of low-dose radiotherapy (LDRT), such as less immunosuppression and lower radiation toxicity, we propose radiotherapy as a booster to enhance the immunotherapeutic efficacy by overcoming the poor priming effect. Recent clinical trials, including ours, have also focused on adding radiotherapy, including LDRT, to first-line treatment of ES-SCLC. Additionally, we also suggest combination strategies to sustain the immunostimulatory effect of radiotherapy, as well as the cancer-immunity cycle, and further improve survival outcomes.
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Affiliation(s)
- Kai Kang
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yijun Wu
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Zhuoran Yao
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - You Lu
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu, China.
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11
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Sadovskaya A, Petinati N, Drize N, Smirnov I, Pobeguts O, Arapidi G, Lagarkova M, Belyavsky A, Vasilieva A, Aleshina O, Parovichnikova E. Acute Myeloid Leukemia Causes Serious and Partially Irreversible Changes in Secretomes of Bone Marrow Multipotent Mesenchymal Stromal Cells. Int J Mol Sci 2023; 24:ijms24108953. [PMID: 37240298 DOI: 10.3390/ijms24108953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/12/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
In patients with acute myeloid leukemia (AML), malignant cells modify the properties of multipotent mesenchymal stromal cells (MSCs), reducing their ability to maintain normal hematopoiesis. The aim of this work was to elucidate the role of MSCs in supporting leukemia cells and the restoration of normal hematopoiesis by analyzing ex vivo MSC secretomes at the onset of AML and in remission. The study included MSCs obtained from the bone marrow of 13 AML patients and 21 healthy donors. The analysis of proteins contained in the MSCs-conditioned medium demonstrated that secretomes of patient MSCs differed little between the onset of AML and remission; pronounced differences were observed between MSC secretomes of AML patients and healthy donors. The onset of AML was accompanied by a decrease in the secretion of proteins related to ossification, transport, and immune response. In remission, but not at the onset, secretion of proteins responsible for cell adhesion, immune response, and complement was reduced compared to donors. We conclude that AML causes crucial and, to a large extent, irreversible changes in the secretome of bone marrow MSCs ex vivo. In remission, functions of MSCs remain impaired despite the absence of tumor cells and the formation of benign hematopoietic cells.
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Affiliation(s)
- Aleksandra Sadovskaya
- National Medical Research Center for Hematology, 125167 Moscow, Russia
- Department of Immunology, Faculty of Biology, Federal State Budget Educational Institution of Higher Education M.V. Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Nataliya Petinati
- National Medical Research Center for Hematology, 125167 Moscow, Russia
| | - Nina Drize
- National Medical Research Center for Hematology, 125167 Moscow, Russia
| | - Igor Smirnov
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, 119435 Moscow, Russia
| | - Olga Pobeguts
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, 119435 Moscow, Russia
| | - Georgiy Arapidi
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, 119435 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
| | - Maria Lagarkova
- Department of Immunology, Faculty of Biology, Federal State Budget Educational Institution of Higher Education M.V. Lomonosov Moscow State University, 119991 Moscow, Russia
- Lopukhin Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, 119435 Moscow, Russia
| | - Alexander Belyavsky
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | | | - Olga Aleshina
- National Medical Research Center for Hematology, 125167 Moscow, Russia
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12
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Crivello P, Arrieta-Bolaños E, He M, Wang T, Fingerson S, Gadalla SM, Paczesny S, Marsh SG, Lee SJ, Spellman SR, Bolon YT, Fleischhauer K. Impact of the HLA Immunopeptidome on Survival of Leukemia Patients After Unrelated Donor Transplantation. J Clin Oncol 2023; 41:2416-2427. [PMID: 36669145 PMCID: PMC10150892 DOI: 10.1200/jco.22.01229] [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: 05/26/2022] [Revised: 09/10/2022] [Accepted: 11/15/2022] [Indexed: 01/21/2023] Open
Abstract
PURPOSE Immunopeptidome divergence between mismatched HLA-DP is a determinant of T-cell alloreactivity and clinical tolerability after fully HLA-A, -B, -C, -DRB1, -DQB1 matched unrelated donor hematopoietic cell transplantation (UD-HCT). Here, we tested this concept in HLA-A, -B, and -C disparities after single class I HLA-mismatched UD-HCT. PATIENTS AND METHODS We studied 2,391 single class I HLA-mismatched and 14,426 fully HLA-matched UD-HCT performed between 2008 and 2018 for acute leukemia or myelodysplastic syndromes. Hierarchical clustering of experimentally determined peptide-binding motifs (PBM) was used as a proxy for immunopeptidome divergence of HLA-A, -B, or -C disparities, allowing us to classify 1,629/2,391 (68.1%) of the HLA-mismatched UD-HCT as PBM-matched or PBM-mismatched. Risks associated with PBM-matching status were assessed by Cox proportional hazards models, with overall survival (OS) as the primary end point. RESULTS Relative to full matches, bidirectional or unidirectional PBM mismatches in graft-versus-host (GVH) direction (PBM-GVH mismatches, 60.7%) were associated with significantly lower OS (hazard ratio [HR], 1.48; P < .0001), while unidirectional PBM mismatches in host-versus-graft direction or PBM matches (PBM-GVH matches, 39.3%) were not (HR, 1.13; P = .1017). PBM-GVH mismatches also had significantly lower OS than PBM-GVH matches in direct comparison (HR, 1.32; P = .0036). The hazards for transplant-related mortality and acute and chronic graft-versus-host disease but not relapse increased stepwise from full HLA matches to single PBM-GVH matches, and single PBM-GVH mismatches. A webtool for PBM-matching of single class I HLA-mismatched donor-recipient pairs was developed. CONCLUSION PBM-GVH mismatches inform mortality risks after single class I HLA-mismatched UD-HCT, suggesting that prospective consideration of directional PBM-matching status might improve outcome. These findings highlight immunopeptidome divergence between mismatched HLA as a driver of clinical tolerability in UD-HCT.
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Affiliation(s)
- Pietro Crivello
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany
| | - Esteban Arrieta-Bolaños
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany
- German Cancer Consortium, partner site Essen/Düsseldorf (DKTK), Heidelberg, Germany
| | - Meilun He
- CIBMTR (Center for International Blood and Marrow Transplant Research), National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Tao Wang
- Division of Biostatistics, Institute for Health and Equity, Medical College of Wisconsin, Milwaukee, WI
- Department of Medicine, Medical College of Wisconsin, CIBMTR (Center for International Blood and Marrow Transplant Research), Milwaukee, WI
| | - Stephanie Fingerson
- CIBMTR (Center for International Blood and Marrow Transplant Research), National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Shahinaz M. Gadalla
- Division of Cancer Epidemiology and Genetics, NIH-NCI Clinical Genetics Branch, Rockville, MD
| | - Sophie Paczesny
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC
| | - Steven G.E. Marsh
- Anthony Nolan Research Institute and University College London Cancer Institute, Royal Free Campus, London, United Kingdom
| | - Stephanie J. Lee
- Department of Medicine, Medical College of Wisconsin, CIBMTR (Center for International Blood and Marrow Transplant Research), Milwaukee, WI
- Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Stephen R. Spellman
- CIBMTR (Center for International Blood and Marrow Transplant Research), National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Yung-Tsi Bolon
- CIBMTR (Center for International Blood and Marrow Transplant Research), National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Katharina Fleischhauer
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany
- German Cancer Consortium, partner site Essen/Düsseldorf (DKTK), Heidelberg, Germany
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13
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Wang Y, Jasinski-Bergner S, Wickenhauser C, Seliger B. Cancer Immunology: Immune Escape of Tumors-Expression and Regulation of HLA Class I Molecules and Its Role in Immunotherapies. Adv Anat Pathol 2023; 30:148-159. [PMID: 36517481 DOI: 10.1097/pap.0000000000000389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The addition of "avoiding immune destruction" to the hallmarks of cancer demonstrated the importance of cancer immunology and in particular the role of immune surveillance and escape from malignancies. However, the underlying mechanisms contributing to immune impairment and immune responses are diverse. Loss or reduced expression of the HLA class I molecules are major characteristics of human cancers resulting in an impaired recognition of tumor cells by CD8 + cytotoxic T lymphocytes. This is of clinical relevance and associated with worse patients outcome and limited efficacy of T-cell-based immunotherapies. Here, we summarize the role of HLA class I antigens in cancers by focusing on the underlying molecular mechanisms responsible for HLA class I defects, which are caused by either structural alterations or deregulation at the transcriptional, posttranscriptional, and posttranslational levels. In addition, the influence of HLA class I abnormalities to adaptive and acquired immunotherapy resistances will be described. The in-depth knowledge of the different strategies of malignancies leading to HLA class I defects can be applied to design more effective cancer immunotherapies.
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Affiliation(s)
| | - Simon Jasinski-Bergner
- Institute of Medical Immunology
- Institute for Translational Immunology, Medical School "Theodor Fontane", Brandenburg, Germany
| | - Claudia Wickenhauser
- Institute of Pathology, Martin Luther University Halle-Wittenberg, Halle (Saale)
| | - Barbara Seliger
- Institute of Medical Immunology
- Department of Good Manufacturing Practice (GMP) Development & Advanced Therapy Medicinal Products (ATMP) Design, Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig, GermanyLeipzig, Germany
- Institute for Translational Immunology, Medical School "Theodor Fontane", Brandenburg, Germany
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14
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Liu C, Zhang L, Chen J, Gao Y. Targeted capture enrichment and sequencing identifies HLA variants associated with the severity of COVID-19. Genes Genomics 2023; 45:451-456. [PMID: 36574143 PMCID: PMC9793816 DOI: 10.1007/s13258-022-01358-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 12/20/2022] [Indexed: 12/28/2022]
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) is currently a global pandemic. The pathogenesis of severe COVID-19 has been widely investigated, but it is still unclear. Human leukocyte antigen (HLA) plays a central role in immune response, and its variants might be related to COVID-19 progression and severity. OBJECTIVE To investigate the hypothesis that individual HLA variations could alter the course of COVID-19 and might be associated with the severity of COVID-19. METHODS In this study, we conducted an HLA targeted capture enrichment and sequencing of severe COVID-19 patients matched to mild cases. A total of 16 COVID-19 patients, confirmed by SARS-CoV-2 viral RNA polymerase-chain-reaction (PCR) test and chest computed tomography (CT) scan, were enrolled in this study. The HLA targeted capture enrichment and sequencing were conducted. HLA typing was performed by comparing contigs with IPD-IMGT/HLA Database. RESULTS In this study, 139 four-digit resolution HLA alleles were acquired. The results showed that HLA-DRB3*01:01 allele was significantly associated with the severity of COVID-19 (odds ratio [OR] = 27.64, 95% confidence interval [CI] = 1.35-560.50, P = 0.0064). And HLA-K*01:01 might be a potential risk factor for COVID-19 severity (OR = 0.11, 95% CI = 0.017-0.66, P = 0.019), but HLA-K*01:02 might be a protective factor (OR = 7.50, 95% CI = 1.48-37.92, P = 0.019). CONCLUSION Three non-classical HLA alleles, including HLA-DRB3*01:01, HLA-K*01:01, HLA-K*01:02 were identified to be associated with the severity of COVID-19 by comparing mild and severe patients. The current findings would be helpful for exploring the influence of HLA gene polymorphisms on the development and severity of COVID-19.
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Affiliation(s)
- Chuanmiao Liu
- Department of Infectious Disease, The First Affiliated Hospital of Bengbu Medical College, Bengbu Medical College, Bengbu, China
- National Clinical Research Center for Infectious Diseases, First Affiliated Hospital of Bengbu Medical College, Bengbu Medical College, Bengbu, China
| | - Li Zhang
- Department of Infectious Disease, The First Affiliated Hospital of Bengbu Medical College, Bengbu Medical College, Bengbu, China
- National Clinical Research Center for Infectious Diseases, First Affiliated Hospital of Bengbu Medical College, Bengbu Medical College, Bengbu, China
| | - Jiasheng Chen
- Department of Infectious Disease, The First Affiliated Hospital of Bengbu Medical College, Bengbu Medical College, Bengbu, China
- National Clinical Research Center for Infectious Diseases, First Affiliated Hospital of Bengbu Medical College, Bengbu Medical College, Bengbu, China
| | - Yu Gao
- School of Life Science, Bengbu Medical College, Bengbu, China.
- Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, China.
- School of Life Science, Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, No. 2600 Donghai Road, Bengbu, 233030, China.
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15
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Harnessing epithelial-mesenchymal plasticity to boost cancer immunotherapy. Cell Mol Immunol 2023; 20:318-340. [PMID: 36823234 PMCID: PMC10066239 DOI: 10.1038/s41423-023-00980-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 01/17/2023] [Indexed: 02/25/2023] Open
Abstract
Immune checkpoint blockade (ICB) therapy is a powerful option for cancer treatment. Despite demonstrable progress, most patients fail to respond or achieve durable responses due to primary or acquired ICB resistance. Recently, tumor epithelial-to-mesenchymal plasticity (EMP) was identified as a critical determinant in regulating immune escape and immunotherapy resistance in cancer. In this review, we summarize the emerging role of tumor EMP in ICB resistance and the tumor-intrinsic or extrinsic mechanisms by which tumors exploit EMP to achieve immunosuppression and immune escape. We discuss strategies to modulate tumor EMP to alleviate immune resistance and to enhance the efficiency of ICB therapy. Our discussion provides new prospects to enhance the ICB response for therapeutic gain in cancer patients.
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16
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Liao Q, Yang J, Ge S, Chai P, Fan J, Jia R. Novel insights into histone lysine methyltransferases in cancer therapy: From epigenetic regulation to selective drugs. J Pharm Anal 2023; 13:127-141. [PMID: 36908859 PMCID: PMC9999304 DOI: 10.1016/j.jpha.2022.11.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 11/24/2022] [Accepted: 11/27/2022] [Indexed: 12/03/2022] Open
Abstract
The reversible and precise temporal and spatial regulation of histone lysine methyltransferases (KMTs) is essential for epigenome homeostasis. The dysregulation of KMTs is associated with tumor initiation, metastasis, chemoresistance, invasiveness, and the immune microenvironment. Therapeutically, their promising effects are being evaluated in diversified preclinical and clinical trials, demonstrating encouraging outcomes in multiple malignancies. In this review, we have updated recent understandings of KMTs' functions and the development of their targeted inhibitors. First, we provide an updated overview of the regulatory roles of several KMT activities in oncogenesis, tumor suppression, and immune regulation. In addition, we summarize the current targeting strategies in different cancer types and multiple ongoing clinical trials of combination therapies with KMT inhibitors. In summary, we endeavor to depict the regulation of KMT-mediated epigenetic landscape and provide potential epigenetic targets in the treatment of cancers.
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Affiliation(s)
- Qili Liao
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200001, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200001, China
| | - Jie Yang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200001, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200001, China
| | - Shengfang Ge
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200001, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200001, China
| | - Peiwei Chai
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200001, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200001, China
| | - Jiayan Fan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200001, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200001, China
| | - Renbing Jia
- Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200001, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, 200001, China
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Zhang J, Huang C, Yang R, Wang X, Fang B, Mi J, Yuan H, Mo Z, Sun Y. Identification of Immune-Related Subtypes and Construction of a Novel Prognostic Model for Bladder Urothelial Cancer. Biomolecules 2022; 12:1670. [PMID: 36421685 PMCID: PMC9687876 DOI: 10.3390/biom12111670] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/06/2022] [Accepted: 11/08/2022] [Indexed: 12/20/2023] Open
Abstract
The purpose of this study was to explore the relationship between bladder urothelial cancer (BLCA) and immunity, to screen prognosis-related immune genes (PIGs), and to construct an immune-related prognosis model (IRPM). We processed the relevant data of The Cancer Genome Atlas (TCGA-BLCA) and GSE13507 using R software and Perl. We divided BLCA into high-immunity and low-immunity subtypes. There were significant differences in the two subtypes. In addition, we identified 13 PIGs of BLCA by jointly analyzing the gene expression data and survival information of GSE13507 and TCGA-BLCA, and constructed IRPM through nine of them. The low-risk group had better survival outcome than the high-risk group. We also constructed a nomogram based on clinicopathological information and risk scores of the patients. Moreover, the prognosis of BLCA patients was significantly impacted by the expression of almost every gene used to calculate the risk score. The result of real-time fluorescence quantitative polymerase chain reaction revealed that all the genes used to calculate the risk score were differentially expressed between BLCA and adjacent normal tissues, except PDGFRA. Our research provided potential targets for the treatment of BLCA and a reference for judging the prognosis of BLCA.
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Affiliation(s)
- Jiange Zhang
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning 530021, China
- Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning 530021, China
- Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning 530021, China
- Department of Urology, The Second Affiliated Hospital of Guangxi Medical University, Nanning 530007, China
| | - Caisheng Huang
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning 530021, China
- Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning 530021, China
- Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning 530021, China
- Department of Urology, The Nanning Second People’s Hospital, The Third Affiliated Hospital of Guangxi Medical University, Nanning 530031, China
| | - Rirong Yang
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning 530021, China
- Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning 530021, China
- Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning 530021, China
- Department of Immunology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
- Collaborative Innovation Center of Regenerative Medicine and Medical BioResource Development and Application Co-Constructed by the Province and Ministry, Guangxi Medical University, Nanning 530021, China
| | - Xiang Wang
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning 530021, China
- Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning 530021, China
- Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning 530021, China
- Department of Immunology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
| | - Bo Fang
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning 530021, China
- Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning 530021, China
- Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning 530021, China
- Collaborative Innovation Center of Regenerative Medicine and Medical BioResource Development and Application Co-Constructed by the Province and Ministry, Guangxi Medical University, Nanning 530021, China
| | - Junhao Mi
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning 530021, China
- Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning 530021, China
- Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning 530021, China
- Collaborative Innovation Center of Regenerative Medicine and Medical BioResource Development and Application Co-Constructed by the Province and Ministry, Guangxi Medical University, Nanning 530021, China
| | - Hao Yuan
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning 530021, China
- Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning 530021, China
- Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning 530021, China
- Department of Immunology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
| | - Zengnan Mo
- Department of Urology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning 530021, China
- Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning 530021, China
- Guangxi Key Laboratory for Genomic and Personalized Medicine, Guangxi Key Laboratory of Colleges and Universities, Nanning 530021, China
| | - Yihai Sun
- Department of Urology, The Nanning Second People’s Hospital, The Third Affiliated Hospital of Guangxi Medical University, Nanning 530031, China
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Lv D, Khawar MB, Liang Z, Gao Y, Sun H. Neoantigens and NK Cells: “Trick or Treat” the Cancers? Front Immunol 2022; 13:931862. [PMID: 35874694 PMCID: PMC9302773 DOI: 10.3389/fimmu.2022.931862] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/14/2022] [Indexed: 12/15/2022] Open
Abstract
Immunotherapy has become an important treatment strategy for cancer patients nowadays. Targeting cancer neoantigens presented by major histocompatibility complex (MHC) molecules, which emerge as a result of non-synonymous somatic mutations with high immunogenicity, is one of the most promising cancer immunotherapy strategies. Currently, several therapeutic options based on the personalized or shared neoantigens have been developed, including neoantigen vaccine and adoptive T-cell therapy, both of which are now being tested in clinical trials for various malignancies. The goal of this review is to outline the use of neoantigens as cancer therapy targets, with an emphasis on neoantigen identification, clinical usage of personalized neoantigen-based cancer therapy agents, and the development of off-the-shelf products based on shared neoantigens. In addition, we introduce and discuss the potential impact of the neoantigen–MHC complex on natural killer (NK) cell antitumor function, which could be a novel way to boost immune response-induced cytotoxicity against malignancies.
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Affiliation(s)
- Dan Lv
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
- School of Life Sciences, Anqing Normal University, Anqing, China
- Jiangsu Key Laboratory of Experimental & Translational Non-Coding RNA Research Yangzhou, Yangzhou, China
| | - Muhammad Babar Khawar
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Experimental & Translational Non-Coding RNA Research Yangzhou, Yangzhou, China
- Applied Molecular Biology and Biomedicine Lab, Department of Zoology, University of Narowal, Narowal, Pakistan
| | - Zhengyan Liang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Experimental & Translational Non-Coding RNA Research Yangzhou, Yangzhou, China
| | - Yu Gao
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Experimental & Translational Non-Coding RNA Research Yangzhou, Yangzhou, China
| | - Haibo Sun
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Experimental & Translational Non-Coding RNA Research Yangzhou, Yangzhou, China
- *Correspondence: Haibo Sun,
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19
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Identification of Survival Risk and Immune-Related Characteristics of Kidney Renal Clear Cell Carcinoma. J Immunol Res 2022; 2022:6149369. [PMID: 35832648 PMCID: PMC9273399 DOI: 10.1155/2022/6149369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 06/14/2022] [Indexed: 12/02/2022] Open
Abstract
Background Immunity exerts momentous functions in the progression and treatment of kidney renal clear cell carcinoma (KIRC). A better understanding of the relationship between KIRC and immunity may make a great contribution to evaluating the prognosis and immune-related therapeutic response of KIRC. Methods A series of information such as RNA sequence, clinical data, and tumor mutation burden (TMB) of KIRC patients were downloaded through The Cancer Genome Atlas (TCGA). Next, combining the survival information and gene expression data of TCGA and Gene Expression Omnibus (GEO), we established an immune gene-related prognosis model (IGRPM) and analyzed it. Then we constructed a nomogram which was convenient for clinicians to judge the prognosis of KIRC. Last but not the least, the expressions of some genes used to construct IGRPM in early KIRC, and adjacent normal tissues were verified through real-time fluorescence quantitative polymerase chain reaction (RT-qPCR). Perl (strawberry-perl-5.30.0.1-64bit), R software (4.0.3), and GraphPad Prism 7 were used to process the relevant data. Results The single-sample gene set enrichment analysis (ssGSEA) showed that there were significant differences in StromalScore, ImmuneScore, ESTIMATEScore, TumorPurity, 22 kinds of human immune cells infiltration, and HLA genes expression between high immunity group (Immunity_H) and low immunity group (Immunity_L). The Immunity_H expressed more immune-related genes and enriched more immune-related functions than the Immunity_L. In addition, compared with the low-risk group, the high-risk group had worse survival outcome and higher TMB. Combining IGRPM-based risk characteristic and TMB, we found that low-TMB + low-risk was the most beneficial to the survival outcome of KIRC patients. The risk characteristic based on IGRPM could be used as an independent prognostic factor for KIRC, and the nomogram constructed for evaluating the prognosis of KIRC showed excellent predictive potential. The RT-qPCR results suggested that not all the genes used to construct IGRPM showed differential expression in early KIRC compared with adjacent normal tissues, but all these genes had significant influence on the prognosis of KIRC. Conclusion These comprehensive immune assessments and survival predictions, integrating multiple aspects of data and clinical information, can provide additional value to the current Tumor Node Metastasis staging system for risk stratification of KIRC and may facilitate the development of KIRC immunotherapy.
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Margulies DH, Taylor DK, Jiang J, Boyd LF, Ahmad J, Mage MG, Natarajan K. Chaperones and Catalysts: How Antigen Presentation Pathways Cope With Biological Necessity. Front Immunol 2022; 13:859782. [PMID: 35464465 PMCID: PMC9022212 DOI: 10.3389/fimmu.2022.859782] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 03/11/2022] [Indexed: 11/13/2022] Open
Abstract
Immune recognition by T lymphocytes and natural killer (NK) cells is in large part dependent on the identification of cell surface MHC molecules bearing peptides generated from either endogenous (MHC I) or exogenous (MHC II) dependent pathways. This review focuses on MHC I molecules that coordinately fold to bind self or foreign peptides for such surface display. Peptide loading occurs in an antigen presentation pathway that includes either the multimolecular peptide loading complex (PLC) or a single chain chaperone/catalyst, TAP binding protein, related, TAPBPR, that mimics a key component of the PLC, tapasin. Recent structural and dynamic studies of TAPBPR reveal details of its function and reflect on mechanisms common to tapasin. Regions of structural conservation among species suggest that TAPBPR and tapasin have evolved to satisfy functional complexities demanded by the enormous polymorphism of MHC I molecules. Recent studies suggest that these two chaperone/catalysts exploit structural flexibility and dynamics to stabilize MHC molecules and facilitate peptide loading.
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Affiliation(s)
- David H Margulies
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, Molecular Biology Section, National Institutes of Health, Bethesda, MD, United States
| | - Daniel K Taylor
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, Molecular Biology Section, National Institutes of Health, Bethesda, MD, United States
| | - Jiansheng Jiang
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, Molecular Biology Section, National Institutes of Health, Bethesda, MD, United States
| | - Lisa F Boyd
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, Molecular Biology Section, National Institutes of Health, Bethesda, MD, United States
| | - Javeed Ahmad
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, Molecular Biology Section, National Institutes of Health, Bethesda, MD, United States
| | - Michael G Mage
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, Molecular Biology Section, National Institutes of Health, Bethesda, MD, United States
| | - Kannan Natarajan
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, Molecular Biology Section, National Institutes of Health, Bethesda, MD, United States
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