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Yao M, Chen H, Chen Z, Wang Y, Shi D, Wu D, Li W, Huang J, Chen G, Zheng Q, Ye Z, Zheng C, Yang Y. Genomic and transcriptomic significance of multiple primary lung cancers detected by next-generation sequencing in clinical settings. Carcinogenesis 2024; 45:387-398. [PMID: 38693810 DOI: 10.1093/carcin/bgae026] [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: 09/27/2023] [Revised: 03/18/2024] [Accepted: 04/26/2024] [Indexed: 05/03/2024] Open
Abstract
Effective diagnosis and understanding of the mechanism of intrapulmonary metastasis (IM) from multiple primary lung cancers (MPLC) aid clinical management. However, the actual detection panels used in the clinic are variable. Current research on tumor microenvironment (TME) of MPLC and IM is insufficient. Therefore, additional investigation into the differential diagnosis and discrepancies in TME between two conditions is crucial. Two hundred and fourteen non-small cell lung cancer patients with multiple tumors were enrolled and 507 samples were subjected to DNA sequencing (NGS 10). Then, DNA and RNA sequencing (master panel) were performed on the specimens from 32 patients, the TME profiles between tumors within each patient and across patients and the differentially expressed genes were compared. Four patients were regrouped with NGS 10 results. Master panel resolved the classifications of six undetermined patients. The TME in MPLC exhibited a high degree of infiltration by natural killer (NK) cells, CD56dim NK cells, endothelial cells, etc., P < 0.05. Conversely, B cells, activated B cells, regulatory cells, immature dendritic cells, etc., P < 0.001, were heavily infiltrated in the IM. NECTIN4 and LILRB4 mRNA were downregulated in the MPLC (P < 0.0001). Additionally, NECTIN4 (P < 0.05) and LILRB4 were linked to improved disease-free survival in the MPLC. In conclusion, IM is screened from MPLC by pathology joint NGS 10 detections, followed by a large NGS panel for indistinguishable patients. A superior prognosis of MPLC may be associated with an immune-activating TME and the downregulation of NECTIN4 and LILRB4 considered as potential drug therapeutic targets.
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Affiliation(s)
- Meihong Yao
- Department of Pathology, Fujian Medical University Union Hospital, No.29 Xinquan Road, Gulou District, Fuzhou 350001, Fujian Province, China
| | - Hu Chen
- Department of Pathology, Fujian Medical University Union Hospital, No.29 Xinquan Road, Gulou District, Fuzhou 350001, Fujian Province, China
| | - Zui Chen
- Department of Pathology, Fujian Medical University Union Hospital, No.29 Xinquan Road, Gulou District, Fuzhou 350001, Fujian Province, China
| | - Yingying Wang
- Department of Pathology, Fujian Medical University Union Hospital, No.29 Xinquan Road, Gulou District, Fuzhou 350001, Fujian Province, China
| | - Dongliang Shi
- Department of Pathology, Fujian Medical University Union Hospital, No.29 Xinquan Road, Gulou District, Fuzhou 350001, Fujian Province, China
| | - Dan Wu
- Department of Pathology, Fujian Medical University Union Hospital, No.29 Xinquan Road, Gulou District, Fuzhou 350001, Fujian Province, China
| | - Wen Li
- Department of Pathology, Fujian Medical University Union Hospital, No.29 Xinquan Road, Gulou District, Fuzhou 350001, Fujian Province, China
| | - Jianping Huang
- Department of Pathology, Fujian Medical University Union Hospital, No.29 Xinquan Road, Gulou District, Fuzhou 350001, Fujian Province, China
| | - Guizhen Chen
- Department of Pathology, Fujian Medical University Union Hospital, No.29 Xinquan Road, Gulou District, Fuzhou 350001, Fujian Province, China
| | - Qiaoling Zheng
- Department of Pathology, Fujian Medical University Union Hospital, No.29 Xinquan Road, Gulou District, Fuzhou 350001, Fujian Province, China
| | - Zhengtao Ye
- Department of Pathology, Fujian Medical University Union Hospital, No.29 Xinquan Road, Gulou District, Fuzhou 350001, Fujian Province, China
| | - Chenxin Zheng
- School of Economics, Xiamen University, No.422 Siming South Road, Siming District, Xiamen 361005, Fujian Province, China
| | - Yinghong Yang
- Department of Pathology, Fujian Medical University Union Hospital, No.29 Xinquan Road, Gulou District, Fuzhou 350001, Fujian Province, China
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Jiménez C, Garrote-de-Barros A, López-Portugués C, Hernández-Sánchez M, Díez P. Characterization of Human B Cell Hematological Malignancies Using Protein-Based Approaches. Int J Mol Sci 2024; 25:4644. [PMID: 38731863 PMCID: PMC11083628 DOI: 10.3390/ijms25094644] [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: 03/19/2024] [Revised: 04/19/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024] Open
Abstract
The maturation of B cells is a complex, multi-step process. During B cell differentiation, errors can occur, leading to the emergence of aberrant versions of B cells that, finally, constitute a malignant tumor. These B cell malignancies are classified into three main groups: leukemias, myelomas, and lymphomas, the latter being the most heterogeneous type. Since their discovery, multiple biological studies have been performed to characterize these diseases, aiming to define their specific features and determine potential biomarkers for diagnosis, stratification, and prognosis. The rise of advanced -omics approaches has significantly contributed to this end. Notably, proteomics strategies appear as promising tools to comprehensively profile the final molecular effector of these cells. In this narrative review, we first introduce the main B cell malignancies together with the most relevant proteomics approaches. Then, we describe the core studies conducted in the field and their main findings and, finally, we evaluate the advantages and drawbacks of flow cytometry, mass cytometry, and mass spectrometry for the profiling of human B cell disorders.
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Affiliation(s)
- Cristina Jiménez
- Hematology Department, University Hospital of Salamanca (HUS/IBSAL), CIBERONC and Cancer Research Institute of Salamanca-IBMCC (USAL-CSIC), 37007 Salamanca, Spain;
| | - Alba Garrote-de-Barros
- Department of Biochemistry and Molecular Biology, Pharmacy School, Universidad Complutense de Madrid, 28040 Madrid, Spain; (A.G.-d.-B.); (M.H.-S.)
- Department of Translational Hematology, Instituto de Investigación Hospital 12 de Octubre (imas12), Hematological Malignancies Clinical Research Unit H12O-CNIO, 28029 Madrid, Spain
| | - Carlos López-Portugués
- Department of Physical and Analytical Chemistry Chemistry, Faculty of Chemistry, University of Oviedo, 33006 Oviedo, Spain;
- Health Research Institute of the Principality of Asturias (ISPA), 33011 Oviedo, Spain
| | - María Hernández-Sánchez
- Department of Biochemistry and Molecular Biology, Pharmacy School, Universidad Complutense de Madrid, 28040 Madrid, Spain; (A.G.-d.-B.); (M.H.-S.)
- Department of Translational Hematology, Instituto de Investigación Hospital 12 de Octubre (imas12), Hematological Malignancies Clinical Research Unit H12O-CNIO, 28029 Madrid, Spain
| | - Paula Díez
- Department of Physical and Analytical Chemistry Chemistry, Faculty of Chemistry, University of Oviedo, 33006 Oviedo, Spain;
- Health Research Institute of the Principality of Asturias (ISPA), 33011 Oviedo, Spain
- Department of Functional Biology, Faculty of Medicine and Health Science, University of Oviedo, 33006 Oviedo, Spain
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Zhang L, Peng X, Ma T, Liu J, Yi Z, Bai J, Li Y, Li L, Zhang L. Natural killer cells affect the natural course, drug resistance, and prognosis of multiple myeloma. Front Cell Dev Biol 2024; 12:1359084. [PMID: 38410372 PMCID: PMC10895066 DOI: 10.3389/fcell.2024.1359084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 01/30/2024] [Indexed: 02/28/2024] Open
Abstract
Multiple myeloma (MM), a stage-developed plasma cell malignancy, evolves from monoclonal gammopathy of undetermined significance (MGUS) or smoldering MM (SMM). Emerging therapies including immunomodulatory drugs, proteasome inhibitors, monoclonal antibodies, chimeric antigen-T/natural killer (NK) cells, bispecific T-cell engagers, selective inhibitors of nuclear export, and small-molecule targeted therapy have considerably improved patient survival. However, MM remains incurable owing to inevitable drug resistance and post-relapse rapid progression. NK cells with germline-encoded receptors are involved in the natural evolution of MGUS/SMM to active MM. NK cells actively recognize aberrant plasma cells undergoing malignant transformation but are yet to proliferate during the elimination phase, a process that has not been revealed in the immune editing theory. They are potential effector cells that have been neglected in the therapeutic process. Herein, we characterized changes in NK cells regarding disease evolution and elucidated its role in the early clinical monitoring of MM. Additionally, we systematically explored dynamic changes in NK cells from treated patients who are in remission or relapse to explore future combination therapy strategies to overcome drug resistance.
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Affiliation(s)
- Li Zhang
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
- Key Laboratory of the Hematology of Gansu Province, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
| | - Xiaohuan Peng
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
- Key Laboratory of the Hematology of Gansu Province, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
| | - Tao Ma
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
- Key Laboratory of the Hematology of Gansu Province, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
- Department of Hematology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Jia Liu
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
- Key Laboratory of the Hematology of Gansu Province, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
| | - Zhigang Yi
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
- Key Laboratory of the Hematology of Gansu Province, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
| | - Jun Bai
- Key Laboratory of the Hematology of Gansu Province, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
| | - Yanhong Li
- Key Laboratory of the Hematology of Gansu Province, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
| | - Lijuan Li
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
- Key Laboratory of the Hematology of Gansu Province, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
| | - Liansheng Zhang
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
- Key Laboratory of the Hematology of Gansu Province, Lanzhou University Second Hospital, Lanzhou University, Lanzhou, China
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Wang Y, Xu J, Lan T, Zhou C, Liu P. The loss of neoantigens is an important reason for immune escape in multiple myeloma patients with high intratumor heterogeneity. Cancer Med 2023; 12:21651-21665. [PMID: 37965778 PMCID: PMC10757111 DOI: 10.1002/cam4.6721] [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: 04/21/2023] [Revised: 07/30/2023] [Accepted: 10/04/2023] [Indexed: 11/16/2023] Open
Abstract
OBJECTIVES Intratumor heterogeneity (ITH) is an important factor for clinical outcomes in patients with multiple myeloma (MM). High ITH has been proven to be a key reason for tumor immune escape and treatment resistance. Neoantigens are thought to be associated with ITH, but the specific correlation and functional basis for this remains unclear. METHODS We study this question through the whole-exome sequencing (WES) data from 43 high ITH newly diagnosed MM patients in our center. Mutant allele tumor heterogeneity (MATH) was conducted to quantify ITH. The cutoff value for high intratumor heterogeneity was determined by comparing MATH of different kinds of tumors. NeoPredPipe was performed to predict neoantigens and binding affinity. RESULTS Compared to other tumors, MM has a relatively low tumor mutation burden but a high ITH. Patients with high MATH had significantly shorter progression-free survival times than those with low MATH (p = 0.001). In high ITH samples, there is a decrease in strong-binding neoantigens (p = 0.019). The loss of strong-binding neoantigens is a key factor for insensitivity to therapy (p = 0.015). Loss of heterozygosity in HLA was not observed. In addition, patients with fewer neoantigens loss had higher rates of disease remission (p = 0.047). CD8 + T cells (p = 0.012) and NK cells (p = 0.011) decreased significantly in patients with high neoantigens loss rate. A prediction model based on neoantigens was built to evaluate the strength of immune escape. CONCLUSION The loss of strong-binding neoantigens explains why tumors with high ITH have a higher degree of immune escape and may be feasible for deciding the clinical treatment of MM.
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Affiliation(s)
- Yue Wang
- Department of Hematology, Zhongshan HospitalFudan UniversityShanghaiChina
| | - Jiadai Xu
- Department of Hematology, Zhongshan HospitalFudan UniversityShanghaiChina
| | - Tianwei Lan
- Department of Hematology, Zhongshan HospitalFudan UniversityShanghaiChina
| | - Chi Zhou
- Department of Hematology, Zhongshan HospitalFudan UniversityShanghaiChina
| | - Peng Liu
- Department of Hematology, Zhongshan HospitalFudan UniversityShanghaiChina
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Chen M, Jiang J, Hou J. Single-cell technologies in multiple myeloma: new insights into disease pathogenesis and translational implications. Biomark Res 2023; 11:55. [PMID: 37259170 DOI: 10.1186/s40364-023-00502-8] [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: 03/19/2023] [Accepted: 05/12/2023] [Indexed: 06/02/2023] Open
Abstract
Multiple myeloma (MM) is a hematological malignancy characterized by clonal proliferation of plasma cells. Although therapeutic advances have been made to improve clinical outcomes and to prolong patients' survival in the past two decades, MM remains largely incurable. Single-cell sequencing (SCS) is a powerful method to dissect the cellular and molecular landscape at single-cell resolution, instead of providing averaged results. The application of single-cell technologies promises to address outstanding questions in myeloma biology and has revolutionized our understanding of the inter- and intra-tumor heterogeneity, tumor microenvironment, and mechanisms of therapeutic resistance in MM. In this review, we summarize the recently developed SCS methodologies and latest MM research progress achieved by single-cell profiling, including information regarding the cancer and immune cell landscapes, tumor heterogeneities, underlying mechanisms and biomarkers associated with therapeutic response and resistance. We also discuss future directions of applying transformative SCS approaches with contribution to clinical translation.
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Affiliation(s)
- Mengping Chen
- Department of Hematology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Jinxing Jiang
- Department of Hematology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Jian Hou
- Department of Hematology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China.
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Yang K, Zhao Y, Sun G, Zhang X, Cao J, Shao M, Liang X, Wang L. Clinical application and prospect of immune checkpoint inhibitors for CAR-NK cell in tumor immunotherapy. Front Immunol 2023; 13:1081546. [PMID: 36741400 PMCID: PMC9892943 DOI: 10.3389/fimmu.2022.1081546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/20/2022] [Indexed: 01/20/2023] Open
Abstract
Chimeric antigen receptor (CAR) engineering of natural killer (NK) cells is an attractive research field in tumor immunotherapy. While CAR is genetically engineered to express certain molecules, it retains the intrinsic ability to recognize tumor cells through its own receptors. Additionally, NK cells do not depend on T cell receptors for cytotoxic killing. CAR-NK cells exhibit some differences to CAR-T cells in terms of more precise killing, numerous cell sources, and increased effectiveness in solid tumors. However, some problems still exist with CAR-NK cell therapy, such as cytotoxicity, low transfection efficiency, and storage issues. Immune checkpoints inhibit immune cells from performing their normal killing function, and the clinical application of immune checkpoint inhibitors for cancer treatment has become a key therapeutic strategy. The application of CAR-T cells and immune checkpoint inhibitors is being evaluated in numerous ongoing basic research and clinical studies. Immune checkpoints may affect the function of CAR-NK cell therapy. In this review, we describe the combination of existing CAR-NK cell technology with immune checkpoint therapy and discuss the research of CAR-NK cell technology and future clinical treatments. We also summarize the progress of clinical trials of CAR-NK cells and immune checkpoint therapy.
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Affiliation(s)
- Kangdi Yang
- Department of Traditional Chinese Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Yuze Zhao
- School of Basic Medicine, Naval Medical University, Shanghai, China
| | - Guanqun Sun
- Clinical Cancer Institute, Center for Translational Medicine, Naval Medical University, Shanghai, China
| | - Xu Zhang
- Department of Traditional Chinese Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Jinjin Cao
- Clinical Cancer Institute, Center for Translational Medicine, Naval Medical University, Shanghai, China
| | - Mingcong Shao
- Department of Traditional Chinese Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Xijun Liang
- Clinical Cancer Institute, Center for Translational Medicine, Naval Medical University, Shanghai, China,*Correspondence: Xijun Liang, ; Lina Wang,
| | - Lina Wang
- Department of Traditional Chinese Medicine, Changhai Hospital, Naval Medical University, Shanghai, China,*Correspondence: Xijun Liang, ; Lina Wang,
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Leveraging Natural Killer Cell Innate Immunity against Hematologic Malignancies: From Stem Cell Transplant to Adoptive Transfer and Beyond. Int J Mol Sci 2022; 24:ijms24010204. [PMID: 36613644 PMCID: PMC9820370 DOI: 10.3390/ijms24010204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/14/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Numerous recent advancements in T-cell based immunotherapies have revolutionized the treatment of hematologic malignancies. In the race towards the first approved allogeneic cellular therapy product, there is growing interest in utilizing natural killer (NK) cells as a platform for off-the-shelf cellular therapies due to their scalable manufacturing potential, potent anti-tumor efficacy, and superior safety profile. Allogeneic NK cell therapies are now being actively explored in the setting of hematopoietic stem cell transplantation and adoptive transfer. Increasingly sophisticated gene editing techniques have permitted the engineering of chimeric antigen receptors, ectopic cytokine expression, and tumor recognition signals to improve the overall cytotoxicity of NK cell therapies. Furthermore, the enhancement of antibody-dependent cellular cytotoxicity has been achieved through the use of NK cell engagers and combination regimens with monoclonal antibodies that act synergistically with CD16-expressing NK cells. Finally, a greater understanding of NK cell biology and the mechanisms of resistance have allowed the preclinical development of NK checkpoint blockade and methods to modulate the tumor microenvironment, which have been evaluated in early phase trials. This review will discuss the recent clinical advancements in NK cell therapies in hematologic malignancies as well as promising avenues of future research.
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Bertuglia G, Cani L, Larocca A, Gay F, D’Agostino M. Normalization of the Immunological Microenvironment and Sustained Minimal Residual Disease Negativity: Do We Need Both for Long-Term Control of Multiple Myeloma? Int J Mol Sci 2022; 23:15879. [PMID: 36555520 PMCID: PMC9781462 DOI: 10.3390/ijms232415879] [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: 11/11/2022] [Revised: 12/02/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022] Open
Abstract
Over the past two decades, the treatment landscape for multiple myeloma (MM) has progressed significantly, with the introduction of several new drug classes that have greatly improved patient outcomes. At present, it is well known how the bone marrow (BM) microenvironment (ME) exerts an immunosuppressive action leading to an exhaustion of the immune system cells and promoting the proliferation and sustenance of tumor plasma cells. Therefore, having drugs that can reconstitute a healthy BM ME can improve results in MM patients. Recent findings clearly demonstrated that achieving minimal residual disease (MRD) negativity and sustaining MRD negativity over time play a pivotal prognostic role. However, despite the achievement of MRD negativity, patients may still relapse. The understanding of immunologic changes in the BM ME during treatment, complemented by a deeper knowledge of plasma cell genomics and biology, will be critical to develop future therapies to sustain MRD negativity over time and possibly achieve an operational cure. In this review, we focus on the components of the BM ME and their role in MM, on the prognostic significance of MRD negativity and, finally, on the relative contribution of tumor plasma cell biology and BM ME to long-term disease control.
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Affiliation(s)
- Giuseppe Bertuglia
- Division of Hematology, Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy
- Division of Hematology, Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino, 10126 Torino, Italy
| | - Lorenzo Cani
- Division of Hematology, Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy
- Division of Hematology, Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino, 10126 Torino, Italy
| | - Alessandra Larocca
- Division of Hematology, Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy
- Division of Hematology, Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino, 10126 Torino, Italy
| | - Francesca Gay
- Division of Hematology, Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy
- Division of Hematology, Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino, 10126 Torino, Italy
| | - Mattia D’Agostino
- Division of Hematology, Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy
- Division of Hematology, Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino, 10126 Torino, Italy
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Liu Z, Wang H, Li Y, Meng N, Liu H, Ding K, Fu R. PIM2 kinase regulates the expression of TIGIT and energy metabolism on NK cell in multiple myeloma patients.. [DOI: 10.21203/rs.3.rs-2159151/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Abstract
Background: PIM2 kinase play a vital role in the generation of plasma cell and bone loss in multiple myeloma(MM), which highly related to the tumor progression and as a potential therapy target in MM. In immune cell,PIM2 kinase involved in the regulation of lymphocyte like T cell and B cell, However, its role in NK cells remains unclear.
Methods: Single-cell RNA sequencing data were analysed the expression of PIM2 kinase in NK cells from MM patients and healthy donors.Immune checkpoint expression, cell apoptosis, and NK cell function had been evaluated through flow cytometry.Then, NCBI, UCSC, JASPAR and GEPIA database were used to predict promoter of TIGIT.NK-92 cells with ETS-1 knockdown were established by using sh-RNA. Kinase functional assay (ADP-Glo) were used to confirm PIM2 inhibitor from 160 kinds of natural flavonoids compound.Samples treated with or without drugs were analyzed using mass spectrometry and RNA-seq. The oxygen consumption rate (OCR), and the extracellular acidification rate (ECAR) were measured by assay kit.
Result: The PIM2 kinase was highly expressed in the NK cells from MM patients based on single-cell sequencing analysis and confirmed in clinical sample by PCR and flow cytometry.Inhibition of PIM2 kinase can increase the function of NK cells and down regulation TIGIT expression. Mechanism, we confirmed that ETS-1 which was directly binding to the promoter of TIGIT was up-regulated by PIM2 kinase, which can lead the strengthened transcription of TIGIT on NK cells.Furthermore, two novel natural flavonoids compound named Kaempferol and Quercetin dihydrate as PIM2 kinase inhibitors exhibiting higher efficiency at low dose in MM cells,while influence the expression of TIGIT and energy metabolism on NK-92 cells. For in vitro experiment,PIM2 kinase inhibitors can activate NK cell killing function and decrease TIGIT expression,while promoted the apoptosis of MM cells irrespective of adding BMSCs or not in co-culture systems BMSCs.
Conclusion: PIM2 kinase involved in the regulation of NK cell.Inhibiting PIM2 kinase could down-regulate the expression of TIGIT and improve energy metabolism to enhance NK cell anti myeloma cell.
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Affiliation(s)
| | | | | | | | | | | | - Rong Fu
- Tianjin Medical University General Hospital
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