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Nagano T, Takada K, Narutomi F, Kinoshita F, Akamine T, Kohno M, Shimokawa M, Takenaka T, Oda Y, Yoshizumi T. Clinical Significance of SIRPα Expression on Tumor-Associated Macrophages in Patients with Lung Squamous Cell Carcinoma. Ann Surg Oncol 2024; 31:6309-6319. [PMID: 38951413 DOI: 10.1245/s10434-024-15649-3] [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: 04/22/2024] [Accepted: 06/07/2024] [Indexed: 07/03/2024]
Abstract
BACKGROUND Signal-regulatory protein alpha (SIRPα) is an immune checkpoint molecule expressed on macrophages that functions to inhibit phagocytosis by binding to CD47 expressed on tumor cells. SIRPα has attracted increasing attention as a novel target for cancer immunotherapy; however, the expression and immune function of SIRPα in lung squamous cell carcinoma (LUSC) remain unclear. Therefore, this study aimed to identify the clinical importance of SIRPα expression in LUSC and to explore the factors that elevate SIRPα expression. PATIENTS AND METHODS Primary LUSC specimens surgically resected from 172 patients underwent immunohistochemical evaluation of the association of SIRPα expression on tumor-associated macrophages with clinicopathological features and clinical outcomes. Furthermore, we analyzed the association of SIRPα expression with tumor-infiltrating lymphocytes and the expression of programmed cell death ligand 1 (PD-L1). In vitro, monocytes were treated with cytokines, and SIRPα protein expression was assessed by flow cytometry. RESULTS There were no differences in SIRPα expression and clinicopathological factors. High SIRPα expression was significantly associated with PD-L1-positive expression, and high CD8, PD-1, and CD163 expression. The high SIRPα expression group showed significantly shorter recurrence-free survival (RFS) and overall survival (OS). On multivariate analysis, high SIRPα expression was an independent poor prognostic factor for RFS and OS. The expression of SIRPα protein in monocytes was upregulated by treatment with IFNγ. CONCLUSION Our analysis revealed that high SIRPα expression significantly predicts poor prognosis in patients with surgically resected LUSC.
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Affiliation(s)
- Taichi Nagano
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuki Takada
- Department of Surgery, Saiseikai Fukuoka General Hospital, Fukuoka, Japan
| | - Fumiya Narutomi
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Fumihiko Kinoshita
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takaki Akamine
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Mikihiro Kohno
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Mototsugu Shimokawa
- Department of Biostatistics, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Tomoyoshi Takenaka
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Yoshinao Oda
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tomoharu Yoshizumi
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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2
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Toledo B, Zhu Chen L, Paniagua-Sancho M, Marchal JA, Perán M, Giovannetti E. Deciphering the performance of macrophages in tumour microenvironment: a call for precision immunotherapy. J Hematol Oncol 2024; 17:44. [PMID: 38863020 PMCID: PMC11167803 DOI: 10.1186/s13045-024-01559-0] [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: 03/05/2024] [Accepted: 05/21/2024] [Indexed: 06/13/2024] Open
Abstract
Macrophages infiltrating tumour tissues or residing in the microenvironment of solid tumours are known as tumour-associated macrophages (TAMs). These specialized immune cells play crucial roles in tumour growth, angiogenesis, immune regulation, metastasis, and chemoresistance. TAMs encompass various subpopulations, primarily classified into M1 and M2 subtypes based on their differentiation and activities. M1 macrophages, characterized by a pro-inflammatory phenotype, exert anti-tumoural effects, while M2 macrophages, with an anti-inflammatory phenotype, function as protumoural regulators. These highly versatile cells respond to stimuli from tumour cells and other constituents within the tumour microenvironment (TME), such as growth factors, cytokines, chemokines, and enzymes. These stimuli induce their polarization towards one phenotype or another, leading to complex interactions with TME components and influencing both pro-tumour and anti-tumour processes.This review comprehensively and deeply covers the literature on macrophages, their origin and function as well as the intricate interplay between macrophages and the TME, influencing the dual nature of TAMs in promoting both pro- and anti-tumour processes. Moreover, the review delves into the primary pathways implicated in macrophage polarization, examining the diverse stimuli that regulate this process. These stimuli play a crucial role in shaping the phenotype and functions of macrophages. In addition, the advantages and limitations of current macrophage based clinical interventions are reviewed, including enhancing TAM phagocytosis, inducing TAM exhaustion, inhibiting TAM recruitment, and polarizing TAMs towards an M1-like phenotype. In conclusion, while the treatment strategies targeting macrophages in precision medicine show promise, overcoming several obstacles is still necessary to achieve an accessible and efficient immunotherapy.
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Affiliation(s)
- Belén Toledo
- Department of Health Sciences, University of Jaén, Campus Lagunillas, Jaén, E-23071, Spain
- Department of Medical Oncology, Cancer Center Amsterdam, Cancer Biology and Immunology, Amsterdam UMC, VU University, Amsterdam, The Netherlands
| | - Linrui Zhu Chen
- Department of Medical Oncology, Cancer Center Amsterdam, Cancer Biology and Immunology, Amsterdam UMC, VU University, Amsterdam, The Netherlands
| | - María Paniagua-Sancho
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, E-18100, Spain
- Instituto de Investigación Sanitaria ibs. GRANADA, Hospitales Universitarios de Granada-Universidad de Granada, Granada, E-18071, Spain
- Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, E-18016, Spain
- Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Granada, E-18016, Spain
| | - Juan Antonio Marchal
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, E-18100, Spain
- Instituto de Investigación Sanitaria ibs. GRANADA, Hospitales Universitarios de Granada-Universidad de Granada, Granada, E-18071, Spain
- Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, E-18016, Spain
- Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Granada, E-18016, Spain
| | - Macarena Perán
- Department of Health Sciences, University of Jaén, Campus Lagunillas, Jaén, E-23071, Spain.
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, E-18100, Spain.
- Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Granada, E-18016, Spain.
| | - Elisa Giovannetti
- Department of Medical Oncology, Cancer Center Amsterdam, Cancer Biology and Immunology, Amsterdam UMC, VU University, Amsterdam, The Netherlands.
- Cancer Pharmacology Lab, Fondazione Pisana per la Scienza, San Giuliano, Pisa, 56017, Italy.
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3
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Tang XX, Shimada H, Ikegaki N. A Perspective on the CD47-SIRPA Axis in High-Risk Neuroblastoma. Curr Oncol 2024; 31:3212-3226. [PMID: 38920727 PMCID: PMC11202629 DOI: 10.3390/curroncol31060243] [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: 05/03/2024] [Revised: 05/29/2024] [Accepted: 05/31/2024] [Indexed: 06/27/2024] Open
Abstract
Neuroblastoma is a pediatric cancer with significant clinical heterogeneity. Despite extensive efforts, it is still difficult to cure children with high-risk neuroblastoma. Immunotherapy is a promising approach to treat children with this devastating disease. We have previously reported that macrophages are important effector cells in high-risk neuroblastoma. In this perspective article, we discuss the potential function of the macrophage inhibitory receptor SIRPA in the homeostasis of tumor-associated macrophages in high-risk neuroblastoma. The ligand of SIRPA is CD47, known as a "don't eat me" signal, which is highly expressed on cancer cells compared to normal cells. CD47 is expressed on both tumor and stroma cells, whereas SIRPA expression is restricted to macrophages in high-risk neuroblastoma tissues. Notably, high SIRPA expression is associated with better disease outcome. According to the current paradigm, the interaction between CD47 on tumor cells and SIRPA on macrophages leads to the inhibition of tumor phagocytosis. However, data from recent clinical trials have called into question the use of anti-CD47 antibodies for the treatment of adult and pediatric cancers. The restricted expression of SIRPA on macrophages in many tissues argues for targeting SIRPA on macrophages rather than CD47 in CD47/SIRPA blockade therapy. Based on the data available to date, we propose that disruption of the CD47-SIRPA interaction by anti-CD47 antibody would shift the macrophage polarization status from M1 to M2, which is inferred from the 1998 study by Timms et al. In contrast, the anti-SIRPA F(ab')2 lacking Fc binds to SIRPA on the macrophage, mimics the CD47-SIRPA interaction, and thus maintains M1 polarization. Anti-SIRPA F(ab')2 also prevents the binding of CD47 to SIRPA, thereby blocking the "don't eat me" signal. The addition of tumor-opsonizing and macrophage-activating antibodies is expected to enhance active tumor phagocytosis.
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Affiliation(s)
- Xao X. Tang
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA;
| | - Hiroyuki Shimada
- Departments of Pathology and Pediatrics, School of Medicine, Stanford University, Stanford, CA 94305, USA;
| | - Naohiko Ikegaki
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA;
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4
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Tamuli B, Sharma S, Patkar M, Biswas S. Key players of immunosuppression in epithelial malignancies: Tumor-infiltrating myeloid cells and γδ T cells. Cancer Rep (Hoboken) 2024; 7:e2066. [PMID: 38703051 PMCID: PMC11069128 DOI: 10.1002/cnr2.2066] [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: 11/16/2023] [Revised: 02/29/2024] [Accepted: 03/23/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND The tumor microenvironment of solid tumors governs the differentiation of otherwise non-immunosuppressive macrophages and gamma delta (γδ) T cells into strong immunosuppressors while promoting suppressive abilities of known immunosuppressors such as myeloid-derived suppressor cells (MDSCs) upon infiltration into the tumor beds. RECENT FINDINGS In epithelial malignancies, tumor-associated macrophages (TAMs), precursor monocytic MDSCs (M-MDSCs), and gamma delta (γδ) T cells often acquire strong immunosuppressive abilities that dampen spontaneous immune responses by tumor-infiltrating T cells and B lymphocytes against cancer. Both M-MDSCs and γδ T cells have been associated with worse prognosis for multiple epithelial cancers. CONCLUSION Here we discuss recent discoveries on how tumor-associated macrophages and precursor M-MDSCs as well as tumor associated-γδ T cells acquire immunosuppressive abilities in the tumor beds, promote cancer metastasis, and perspectives on how possible novel interventions could restore the effective adaptive immune responses in epithelial cancers.
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Affiliation(s)
- Baishali Tamuli
- Tumor Immunology and Immunotherapy, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC)Tata Memorial CentreKharghar, Navi MumbaiIndia
| | - Sakshi Sharma
- Tumor Immunology and Immunotherapy, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC)Tata Memorial CentreKharghar, Navi MumbaiIndia
| | - Meena Patkar
- Tumor Immunology and Immunotherapy, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC)Tata Memorial CentreKharghar, Navi MumbaiIndia
| | - Subir Biswas
- Tumor Immunology and Immunotherapy, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC)Tata Memorial CentreKharghar, Navi MumbaiIndia
- Homi Bhabha National InstituteMumbaiIndia
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5
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ZHOU Y, REN D, BI H, YI B, ZHANG C, WANG H, SUN J. [Tumor-associated Macrophage:
Emerging Targets for Modulating the Tumor Microenvironment]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2024; 27:231-240. [PMID: 38590197 PMCID: PMC11002190 DOI: 10.3779/j.issn.1009-3419.2024.102.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Indexed: 04/10/2024]
Abstract
Tumor-associated macrophage (TAM) play a crucial role in the immune microenvironment of lung cancer. Through changes in their phenotype and phagocytic functions, TAM contribute to the initiation and progression of lung cancer. By promoting the formation of an immune-suppressive microenvironment and accelerating the growth of abnormal tumor vasculature, TAM facilitate the invasion and metastasis of lung cancer. Macrophages can polarize into different subtypes with distinct functions and characteristics in response to various stimuli, categorized as anti-tumor M1 and pro-tumor M2 types. In tumor tissues, TAM typically polarize into the alternatively activated M2 phenotype, exhibiting inhibitory effects on tumor immunity. This article reviews the role of anti-angiogenic drugs in modulating TAM phenotypes, highlighting their potential to reprogram M2-type TAM into an anti-tumor M1 phenotype. Additionally, the functional alterations of TAM play a significant role in anti-angiogenic therapy and immunotherapy strategies. In summary, the regulation of TAM polarization and function opens up new avenues for lung cancer treatment and may serve as a novel target for modulating the immune microenvironment of tumors.
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6
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McWhorter R, Bonavida B. The Role of TAMs in the Regulation of Tumor Cell Resistance to Chemotherapy. Crit Rev Oncog 2024; 29:97-125. [PMID: 38989740 DOI: 10.1615/critrevoncog.2024053667] [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: 07/12/2024]
Abstract
Tumor-associated macrophages (TAMs) are the predominant cell infiltrate in the immunosuppressive tumor microenvironment (TME). TAMs are central to fostering pro-inflammatory conditions, tumor growth, metastasis, and inhibiting therapy responses. Many cancer patients are innately refractory to chemotherapy and or develop resistance following initial treatments. There is a clinical correlation between the level of TAMs in the TME and chemoresistance. Hence, the pivotal role of TAMs in contributing to chemoresistance has garnered significant attention toward targeting TAMs to reverse this resistance. A prerequisite for such an approach requires a thorough understanding of the various underlying mechanisms by which TAMs inhibit response to chemotherapeutic drugs. Such mechanisms include enhancing drug efflux, regulating drug metabolism and detoxification, supporting cancer stem cell (CSCs) resistance, promoting epithelial-mesenchymal transition (EMT), inhibiting drug penetration and its metabolism, stimulating angiogenesis, impacting inhibitory STAT3/NF-κB survival pathways, and releasing specific inhibitory cytokines including TGF-β and IL-10. Accordingly, several strategies have been developed to overcome TAM-modulated chemoresistance. These include novel therapies that aim to deplete TAMs, repolarize them toward the anti-tumor M1-like phenotype, or block recruitment of monocytes into the TME. Current results from TAM-targeted treatments have been unimpressive; however, the use of TAM-targeted therapies in combination appears promising These include targeting TAMs with radiotherapy, chemotherapy, chemokine receptor inhibitors, immunotherapy, and loaded nanoparticles. The clinical limitations of these strategies are discussed.
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Affiliation(s)
| | - Benjamin Bonavida
- Department of Microbiology, Immunology, & Molecular Genetics, David Geffen School of Medicine at UCLA, Johnson Comprehensive Cancer Center, University of California at Los Angeles, Los Angeles, CA 90025-1747, USA
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7
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Kang G, Jiao Y, Pan P, Fan H, Li Q, Li X, Li J, Wang Y, Jia Y, Wang J, Sun H, Ma X. α5-nAChR/STAT3/CD47 axis contributed to nicotine-related lung adenocarcinoma progression and immune escape. Carcinogenesis 2023; 44:773-784. [PMID: 37681453 DOI: 10.1093/carcin/bgad061] [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: 07/04/2023] [Revised: 08/23/2023] [Accepted: 09/06/2023] [Indexed: 09/09/2023] Open
Abstract
OBJECTIVES The CHRNΑ5 gene, which encodes the α5-nicotinic acetylcholine receptor (α5-nAChR), is related to lung cancer and nicotine addiction. Smoking is closely related to the immunosuppressive effect of macrophages. CD47, a phagocytosis checkpoint in macrophages, is a therapeutic target in various cancer types. Nevertheless, the relationship between α5-nAChR and CD47 in lung cancer is still unclear. METHODS AND RESULTS The present study showed that α5-nAChR-mediated CD47 expression via STAT3 signaling, consequently leading to tumor progression and immune suppression in lung adenocarcinoma (LUAD). α5-nAChR expression was correlated with STAT3 expression, CD47 expression, smoking status and poor prognosis of LUAD in vivo. In vitro, α5-nAChR expression mediated the phosphorylation of STAT3, and phosphorylated STAT3 bound to the CD47 promoter and mediated CD47 expression. Downregulation of α5-nAChR and/or CD47 significantly reduced cell proliferation, migration, invasion, stemness and IL-10 expression, but increased TNF-α expression and phagocytosis of macrophages in LUAD. Furthermore, α5-nAChR/CD47 signaling contributed to the growth of subcutaneous xenograft tumors and liver metastasis of tumors in mice. CONCLUSION The α5-nAChR/STAT3/CD47 axis contributed to the progression and immune escape of lung cancer and may be a potential target for LUAD immunotherapy.
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Affiliation(s)
- Guiyu Kang
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China
- Department of Medical Laboratory, Weifang Medical University, Weifang, Shandong 261053, China
| | - Yang Jiao
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, Shandong 250013, China
| | - Pan Pan
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China
| | - Huiping Fan
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China
| | - Qiang Li
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China
| | - Xiangying Li
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, Shandong 250013, China
| | - Jingtan Li
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, Shandong 250013, China
| | - Yan Wang
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, Shandong 250013, China
| | - Yanfei Jia
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China
| | - Jingting Wang
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China
| | - Haiji Sun
- College of Life Science, Shandong Normal University, Jinan, Shandong 250014, China
| | - Xiaoli Ma
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China
- Department of Medical Laboratory, Weifang Medical University, Weifang, Shandong 261053, China
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, Shandong 250013, China
- Laboratory of Traditional Chinese Medicine & Stress Injury of Shandong Province, Jinan, Shandong 250013, China
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8
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Pan L, Hu L, Chen M, Song Y, Chen Z, Gu Y, Li C, Jiang Z. A novel CD47-blocking peptide fused to pro-apoptotic KLA repeat inhibits lung cancer growth in mice. Cancer Immunol Immunother 2023; 72:4179-4194. [PMID: 37831145 DOI: 10.1007/s00262-023-03554-9] [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: 06/08/2023] [Accepted: 09/22/2023] [Indexed: 10/14/2023]
Abstract
CD47 is highly expressed in many tumor tissues and induces immune evasion by interaction with SIRP-alpha (signal regulatory protein-alpha) expressed on tumor-associated macrophages. In this study, we identified a novel CD47-blocking peptide VK17 by phage display technique. A pro-apoptotic VK30 peptide was obtained after VK17 was fused to KLA amino acid repeat at C-termini. The VK30 was specifically bound to CD47 on lung cancer cells, and subsequently inducing lung cancer cell apoptosis. Meanwhile, the expression of Bax was increased, whereas the expression of Bcl-2 and Ki-67 were reduced in the VK30-treated lung cancer cells. In addition, VK30 effectively improved the phagocytic activity of macrophages against VK30-pretreated lung cancer cells. Combinational treatment of lung cancer cells with blocking antibody anti-CD47 and VK30 additively enhanced VK30 binding to CD47, subsequently increasing lung cancer cell apoptosis and macrophage phagocytosis. Intraperitoneal administration of 2 mg/kg VK30 induced effective trafficking of VK30 into tumor tissues, and suppressing lung cancer cell growth in mice, associated with increased tumor cell apoptosis, macrophage activation and phagocytosis in vivo. The expression of CD47 was reduced in the VK30-treated tumor tissues and the expression level was positively correlated to tumor size. In addition, VK30 reduced the infiltration of CD11b+Ly6G+ neutrophils and CD11b+Ly6C+Ly6G+ granulocytic myeloid-derived suppressor cells (Gr-MDSCs) in tumor tissues, associated with suppressed expression of tumorigenic IL-6 and TNF-alpha from these cell types. Thereby, VK30 exerted anti-tumor effects in mice through inducing tumor cell apoptosis and macrophage phagocytosis. VK30 would be a novel therapeutic peptide in lung cancer immunotherapy.
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Affiliation(s)
- Linyue Pan
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China
| | - Lu Hu
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Mengjie Chen
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China
| | - Yuanlin Song
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China
- Shanghai Key Laboratory of Lung Inflammation and Injury, Shanghai, China
| | - Zhihong Chen
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China
| | - Yutong Gu
- Department of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chun Li
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China.
| | - Zhilong Jiang
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China.
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9
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Lau APY, Khavkine Binstock SS, Thu KL. CD47: The Next Frontier in Immune Checkpoint Blockade for Non-Small Cell Lung Cancer. Cancers (Basel) 2023; 15:5229. [PMID: 37958404 PMCID: PMC10649163 DOI: 10.3390/cancers15215229] [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: 08/15/2023] [Revised: 10/18/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
The success of PD-1/PD-L1-targeted therapy in lung cancer has resulted in great enthusiasm for additional immunotherapies in development to elicit similar survival benefits, particularly in patients who do not respond to or are ineligible for PD-1 blockade. CD47 is an immunosuppressive molecule that binds SIRPα on antigen-presenting cells to regulate an innate immune checkpoint that blocks phagocytosis and subsequent activation of adaptive tumor immunity. In lung cancer, CD47 expression is associated with poor survival and tumors with EGFR mutations, which do not typically respond to PD-1 blockade. Given its prognostic relevance, its role in facilitating immune escape, and the number of agents currently in clinical development, CD47 blockade represents a promising next-generation immunotherapy for lung cancer. In this review, we briefly summarize how tumors disrupt the cancer immunity cycle to facilitate immune evasion and their exploitation of immune checkpoints like the CD47-SIRPα axis. We also discuss approved immune checkpoint inhibitors and strategies for targeting CD47 that are currently being investigated. Finally, we review the literature supporting CD47 as a promising immunotherapeutic target in lung cancer and offer our perspective on key obstacles that must be overcome to establish CD47 blockade as the next standard of care for lung cancer therapy.
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Affiliation(s)
- Asa P. Y. Lau
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Keenan Research Centre for Biomedical Science, St. Michael’s Hospital, Toronto, ON M5B 1T8, Canada
| | - Sharon S. Khavkine Binstock
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Keenan Research Centre for Biomedical Science, St. Michael’s Hospital, Toronto, ON M5B 1T8, Canada
| | - Kelsie L. Thu
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Keenan Research Centre for Biomedical Science, St. Michael’s Hospital, Toronto, ON M5B 1T8, Canada
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10
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Wang Q, Zhang L, Su Z, Li W, Jia Y, Zhang J. Serum exosomal m6A demethylase FTO promotes gefitinib resistance in non-small cell lung cancer by up-regulating FLRT3, PTGIS and SIRPα expression. Pulm Pharmacol Ther 2023; 82:102227. [PMID: 37330168 DOI: 10.1016/j.pupt.2023.102227] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 05/10/2023] [Accepted: 06/07/2023] [Indexed: 06/19/2023]
Abstract
This study investigates the molecular mechanism of FTO m6A demethylase in non-small cell lung cancer (NSCLC) and gefitinib resistance using GEO and TCGA databases. Differentially expressed genes (DEGs) were screened from RNA-seq data sets of serum exosomes of gefitinib-resistant NSCLC patients in the GEO database and the NSCLC data set in the GEPIA2 database. From this analysis, FTO m6A demethylase was found to be significantly upregulated in the serum exosomes of gefitinib-resistant NSCLC patients. To identify downstream genes affected by FTO m6A demethylase, weighted correlation network analysis and differential expression analysis were performed, resulting in the identification of three key downstream genes (FLRT3, PTGIS, and SIRPA). Using these genes, the authors constructed a prognostic risk assessment model. Patients with high-risk scores exhibited a significantly worse prognosis. The model could predict the prognosis of NSCLC with high accuracy measured by AUC values of 0.588, 0.608, and 0.603 at 1, 3, and 5 years respectively. Furthermore, m6A sites were found in FLRT3, PTGIS, and SIRPA genes, and FTO was significantly positively correlated with the expression of these downstream genes. Overall, FTO m6A demethylase promotes gefitinib resistance in NSCLC patients by upregulating downstream FLRT3, PTGIS, and SIRPA expression, with these three downstream genes serving as strong prognostic indicators.
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Affiliation(s)
- Qi Wang
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, 130041, China
| | - Lin Zhang
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, 130041, China
| | - Zhenzhong Su
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, 130041, China
| | - Wei Li
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, 130041, China
| | - Yuxi Jia
- Orthopedic Research Center, The Second Hospital of Jilin University, Changchun, Jilin, 130041, China.
| | - Jie Zhang
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, 130041, China.
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11
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Song J, Xiao T, Li M, Jia Q. Tumor-associated macrophages: Potential therapeutic targets and diagnostic markers in cancer. Pathol Res Pract 2023; 249:154739. [PMID: 37544129 DOI: 10.1016/j.prp.2023.154739] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/03/2023] [Accepted: 08/03/2023] [Indexed: 08/08/2023]
Abstract
Macrophages are plastic and functionally diverse, present in all tissues, and play a key role in organisms from development, homeostasis and repair, to immune responses to pathogens. They are central to many disease states and have emerged as important therapeutic targets for many diseases. Tumor-associated macrophages (TAMs) are the most abundant immune cells in the tumor microenvironment (TME) and are key factors influencing cancer progression, metastasis and tumor recurrence. TAMs can be derived from different sources and exert different pro- or anti-tumor effects based on the type, stage and immune composition of the tumor. TAMs are highly heterogeneous and diverse, and have multiple functional phenotypes. There is still a great deal of controversy regarding the relationship between TAMs and prognosis of cancer patients. In this review, we summarize the characteristics of common markers of TAMs as well as explore the prognostic role of TAMs in different cancers including lung, breast, gastric, colorectal, esophageal and ovarian cancers.
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Affiliation(s)
- Junyang Song
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Tian Xiao
- Department of Physiology and Pathophysiology, School of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Mingyang Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Fourth Military Medical University, Xi'an, China.
| | - Qingge Jia
- Department of Reproductive Medicine, Xi'an International Medical Center Hospital, Northwest University, Xi'an, China.
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12
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Torres JA, Brito ABC, Silva VSE, Messias IM, Braun AC, Ruano APC, Buim MEC, Carraro DM, Chinen LTD. CD47 Expression in Circulating Tumor Cells and Circulating Tumor Microemboli from Non-Small Cell Lung Cancer Patients Is a Poor Prognosis Factor. Int J Mol Sci 2023; 24:11958. [PMID: 37569332 PMCID: PMC10419161 DOI: 10.3390/ijms241511958] [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: 06/14/2023] [Revised: 07/19/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
Circulating tumor cells (CTCs) and/or circulating tumor microemboli (CTM) from non-small cell lung cancer (NSCLC) patients may be a non-invasive tool for prognosis, acting as liquid biopsy. CTCs interact with platelets through the transforming growth factor-β/transforming growth factor-β receptor type 1 (TGF-β/TGFβRI) forming clusters. CTCs also may express the Cluster of Differentiation 47 (CD47) protein, responsible for the inhibition of phagocytosis, the "don't eat me" signal to macrophages. OBJECTIVES To isolate, quantify and analyze CTCs/CTMs from metastatic NSCLC patients, identify TGFβRI/CD47 expression in CTCs/CTMs, and correlate with progression-free survival (PFS). METHODS Blood (10 mL) was collected at two time-points: T1 (before the beginning of any line of treatment; T2 (60 days after initial collection). CTCs were isolated using ISET®. Immunocytochemistry was conducted to evaluate TGFβRI/CD47 expression. RESULTS 45 patients were evaluated. CTCs were observed in 82.2% of patients at T1 (median: 1 CTC/mL; range: 0.33-11.33 CTCs/mL) and 94.5% at T2 (median: 1.33 CTC/mL; 0.33-9.67). CTMs were observed in 24.5% of patients and significantly associated with poor PFS (10 months vs. 17 months for those without clusters; p = 0.05) and disease progression (p = 0.017). CTMs CD47+ resulted in poor PFS (p = 0.041). TGFβRI expression in CTCs/CTMs was not associated with PFS. CONCLUSION In this study, we observed that CTC/CTM from NSCLC patients express the immune evasion markers TGFβRI/CD47. The presence of CTMs CD47+ is associated with poor PFS. This was the first study to investigate CD47 expression in CTCs/CTM of patients with NSCLC and its association with poor PFS.
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Affiliation(s)
| | | | - Virgilio Souza e Silva
- Department of Clinical Oncology, A.C. Camargo Cancer Center, São Paulo 01509-900, Brazil
| | - Iara Monique Messias
- International Research Center, A.C. Camargo Cancer Center, São Paulo 01508-010, Brazil; (J.A.T.)
| | - Alexcia Camila Braun
- International Research Center, A.C. Camargo Cancer Center, São Paulo 01508-010, Brazil; (J.A.T.)
| | - Anna Paula Carreta Ruano
- International Research Center, A.C. Camargo Cancer Center, São Paulo 01508-010, Brazil; (J.A.T.)
| | | | - Dirce Maria Carraro
- International Research Center, A.C. Camargo Cancer Center, São Paulo 01508-010, Brazil; (J.A.T.)
| | - Ludmilla Thomé Domingos Chinen
- International Research Center, A.C. Camargo Cancer Center, São Paulo 01508-010, Brazil; (J.A.T.)
- Translational Medicine Laboratory, Núcleo de Pesquisa e Ensino da Rede São Camilo, São Paulo 04014-002, Brazil
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Bruni S, Mercogliano MF, Mauro FL, Cordo Russo RI, Schillaci R. Cancer immune exclusion: breaking the barricade for a successful immunotherapy. Front Oncol 2023; 13:1135456. [PMID: 37284199 PMCID: PMC10239871 DOI: 10.3389/fonc.2023.1135456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 05/10/2023] [Indexed: 06/08/2023] Open
Abstract
Immunotherapy has changed the course of cancer treatment. The initial steps were made through tumor-specific antibodies that guided the setup of an antitumor immune response. A new and successful generation of antibodies are designed to target immune checkpoint molecules aimed to reinvigorate the antitumor immune response. The cellular counterpart is the adoptive cell therapy, where specific immune cells are expanded or engineered to target cancer cells. In all cases, the key for achieving positive clinical resolutions rests upon the access of immune cells to the tumor. In this review, we focus on how the tumor microenvironment architecture, including stromal cells, immunosuppressive cells and extracellular matrix, protects tumor cells from an immune attack leading to immunotherapy resistance, and on the available strategies to tackle immune evasion.
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Chen Y, Zhu Y, Kramer A, Fang Y, Wilson M, Li YR, Yang L. Genetic engineering strategies to enhance antitumor reactivity and reduce alloreactivity for allogeneic cell-based cancer therapy. Front Med (Lausanne) 2023; 10:1135468. [PMID: 37064017 PMCID: PMC10090359 DOI: 10.3389/fmed.2023.1135468] [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: 12/31/2022] [Accepted: 03/09/2023] [Indexed: 03/31/2023] Open
Abstract
The realm of cell-based immunotherapy holds untapped potential for the development of next-generation cancer treatment through genetic engineering of chimeric antigen receptor (CAR)-engineered T (CAR-T) cell therapies for targeted eradication of cancerous malignancies. Such allogeneic "off-the-shelf" cell products can be advantageously manufactured in large quantities, stored for extended periods, and easily distributed to treat an exponential number of cancer patients. At current, patient risk of graft-versus-host disease (GvHD) and host-versus-graft (HvG) allorejection severely restrict the development of allogeneic CAR-T cell products. To address these limitations, a variety of genetic engineering strategies have been implemented to enhance antitumor efficacy, reduce GvHD and HvG onset, and improve the overall safety profile of T-cell based immunotherapies. In this review, we summarize these genetic engineering strategies and discuss the challenges and prospects these approaches provide to expedite progression of translational and clinical studies for adoption of a universal cell-based cancer immunotherapy.
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Affiliation(s)
- Yuning Chen
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, United States
| | - Yichen Zhu
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, United States
| | - Adam Kramer
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, United States
| | - Ying Fang
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, United States
| | - Matthew Wilson
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, United States
| | - Yan-Ruide Li
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, United States
| | - Lili Yang
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, United States
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA, United States
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA, United States
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15
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Wang L, Jia Q, Chu Q, Zhu B. Targeting tumor microenvironment for non-small cell lung cancer immunotherapy. CHINESE MEDICAL JOURNAL PULMONARY AND CRITICAL CARE MEDICINE 2023; 1:18-29. [PMID: 39170874 PMCID: PMC11332857 DOI: 10.1016/j.pccm.2022.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 08/21/2022] [Accepted: 11/23/2022] [Indexed: 08/23/2024]
Abstract
The tumor microenvironment (TME) is composed of different cellular and non-cellular elements. Constant interactions between tumor cells and the TME are responsible for tumor initiation, tumor progression, and responses to therapies. Immune cells in the TME can be classified into two broad categories, namely adaptive and innate immunity. Targeting these immune cells has attracted substantial research and clinical interest. Current research focuses on identifying key molecular players and developing targeted therapies. These approaches may offer more efficient ways of treating different cancers. In this review, we explore the heterogeneity of the TME in non-small cell lung cancer, summarize progress made in targeting the TME in preclinical and clinical studies, discuss the potential predictive value of the TME in immunotherapy, and highlight the promising effects of bispecific antibodies in the era of immunotherapy.
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Affiliation(s)
- Lei Wang
- Department of Oncology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Qingzhu Jia
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
- Chongqing Key Laboratory of Immunotherapy, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Qian Chu
- Department of Oncology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Bo Zhu
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
- Chongqing Key Laboratory of Immunotherapy, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
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16
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Baxevanis CN. Immune Checkpoint Inhibitors in Cancer Therapy-How Can We Improve Clinical Benefits? Cancers (Basel) 2023; 15:cancers15030881. [PMID: 36765836 PMCID: PMC9913410 DOI: 10.3390/cancers15030881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 01/29/2023] [Indexed: 02/04/2023] Open
Abstract
Immune checkpoint inhibitors (ICIs) are in the spotlight of cancer treatment by increasing the probability for long-term survival in patients with metastatic disease and by considerably prolonging progression-free survival in patients at early disease stages [...].
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Affiliation(s)
- Constantin N Baxevanis
- Cancer Immunology and Immunotherapy Center, Cancer Research Center, Saint Savas Cancer Hospital, 11522 Athens, Greece
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17
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Giatromanolaki A, Chatzipantelis P, Contrafouris CA, Koukourakis MI. Tertiary Lymphoid Structures, Immune Response, and Prognostic Relevance in Non-Small Cell Lung Cancer. Cancer Invest 2023; 41:48-57. [PMID: 36239379 DOI: 10.1080/07357907.2022.2136684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
We assessed the presence of 'tertiary lymphoid structures' (TLS) in a series of surgically treated non-small cell lung carcinomas (NSCLC). The TLS-density in the tumor periphery (pTLS) ranged from 0 to 1.8 (median 0.45), while in inner tumor areas (iTLS) ranged from 0 to 1.0 (median 0); (p < 0.0001). High pTLS-density was linked with early stage of the disease. Glycolysis-related enzyme expression (MCT1, Hexokinase 2) was linked with high pTLS-density (p < 0.05). High pTLS and iTLS densities were linked with better postoperative prognosis (p = 0.02 and p = 0.01, respectively). Assessment of TLS is a useful prognostic marker in NSCLC.
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Affiliation(s)
- Alexandra Giatromanolaki
- Department of Pathology, University Hospital of Alexandroupolis, Democritus University of Thrace, Greece
| | - Paschalis Chatzipantelis
- Department of Pathology, University Hospital of Alexandroupolis, Democritus University of Thrace, Greece
| | | | - Michael I Koukourakis
- Department of Radiotherapy/Oncology, University Hospital of Alexandroupolis, Democritus University of Thrace, Alexandroupolis, Greece
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18
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Oh HH, Park YL, Park SY, Myung E, Im CM, Yu HJ, Han B, Seo YJ, Kim KH, Myung DS, Cho SB, Lee WS, Park D, Joo YE. CD47 mediates the progression of colorectal cancer by inducing tumor cell apoptosis and angiogenesis. Pathol Res Pract 2022; 240:154220. [DOI: 10.1016/j.prp.2022.154220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/07/2022] [Accepted: 11/12/2022] [Indexed: 11/16/2022]
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19
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Vladimirova YV, Mølmer MK, Antonsen KW, Møller N, Rittig N, Nielsen MC, Møller HJ. A New Serum Macrophage Checkpoint Biomarker for Innate Immunotherapy: Soluble Signal-Regulatory Protein Alpha (sSIRPα). Biomolecules 2022; 12:biom12070937. [PMID: 35883493 PMCID: PMC9312483 DOI: 10.3390/biom12070937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/24/2022] [Accepted: 06/30/2022] [Indexed: 12/10/2022] Open
Abstract
Background and Aims: The macrophage “don’t eat me” pathway CD47/SIRPα is a target for promising new immunotherapy. We hypothesized that a soluble variant of SIRPα is present in the blood and may function as a biomarker. Methods: Monocyte derived macrophages (MDMs) from human buffy-coats were stimulated into macrophage subtypes by LPS and IFN-γ (M1), IL-4 and IL-13 (M2a), IL-10 (M2c) and investigated using flow cytometry. Soluble SIRPα (sSIRPα) was measured in cell cultures and serum by Western blotting and an optimized ELISA. Serum samples were obtained from 120 healthy individuals and from 8 individuals challenged by an LPS injection. Results: All macrophage phenotypes expressed SIRPα by flowcytometry, and sSIRPα was present in all culture supernatants including unstimulated cells. M1 macrophages expressed the lowest level of SIRPαand released the highest level of sSIRPα (p < 0.05). In vivo, the serum level of sSIRPα increased significantly (p < 0.0001) after an LPS challenge in humans. The median concentration in healthy individuals was 28.7 µg/L (19.8−41.1, 95% reference interval), and 20.5 µg/L in an IFCC certified serum reference material. The protein was stable in serum for prolonged storage and repeated freeze/thawing. Conclusions: We demonstrate that sSIRPα is produced constitutively and the concentration increases upon macrophage activation both in vitro and in vivo. It is present in human serum where it may function as a biomarker for the activity of tumor-associated macrophages (TAMs), and for monitoring the effect of immunotherapy.
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Affiliation(s)
- Yoanna V. Vladimirova
- Department of Clinical Biochemistry, Aarhus University Hospital, 8200 Aarhus N, Denmark; (Y.V.V.); (M.K.M.); (K.W.A.); (M.C.N.)
| | - Marie K. Mølmer
- Department of Clinical Biochemistry, Aarhus University Hospital, 8200 Aarhus N, Denmark; (Y.V.V.); (M.K.M.); (K.W.A.); (M.C.N.)
| | - Kristian W. Antonsen
- Department of Clinical Biochemistry, Aarhus University Hospital, 8200 Aarhus N, Denmark; (Y.V.V.); (M.K.M.); (K.W.A.); (M.C.N.)
| | - Niels Møller
- Department of Endocrinology and Internal Medicine, Medical/Steno Research Laboratories, Aarhus University Hospital, 8200 Aarhus N, Denmark; (N.M.); (N.R.)
| | - Nikolaj Rittig
- Department of Endocrinology and Internal Medicine, Medical/Steno Research Laboratories, Aarhus University Hospital, 8200 Aarhus N, Denmark; (N.M.); (N.R.)
| | - Marlene C. Nielsen
- Department of Clinical Biochemistry, Aarhus University Hospital, 8200 Aarhus N, Denmark; (Y.V.V.); (M.K.M.); (K.W.A.); (M.C.N.)
| | - Holger J. Møller
- Department of Clinical Biochemistry, Aarhus University Hospital, 8200 Aarhus N, Denmark; (Y.V.V.); (M.K.M.); (K.W.A.); (M.C.N.)
- Department of Clinical Medicine, Aarhus University, 8200 Aarhus N, Denmark
- Correspondence:
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20
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Li M, He L, Zhu J, Zhang P, Liang S. Targeting tumor-associated macrophages for cancer treatment. Cell Biosci 2022; 12:85. [PMID: 35672862 PMCID: PMC9172100 DOI: 10.1186/s13578-022-00823-5] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 05/29/2022] [Indexed: 02/08/2023] Open
Abstract
Tumor-associated macrophages (TAMs) are abundant, nearly accounting for 30–50% of stromal cells in the tumor microenvironment. TAMs exhibit an immunosuppressive M2-like phenotype in advanced cancer, which plays a crucial role in tumor growth, invasion and migration, angiogenesis and immunosuppression. Consequently, the TAM-targeting therapies are particularly of significance in anti-cancer strategies. The application of TAMs as anti-cancer targets is expected to break through traditional tumor-associated therapies and achieves favorable clinical effect. However, the heterogeneity of TAMs makes the strategy of targeting TAMs variable and uncertain. Discovering the subset specificity of TAMs might be a future option for targeting TAMs therapy. Herein, the review focuses on highlighting the different modalities to modulate TAM’s functions, including promoting the phagocytosis of TAMs, TAMs depletion, blocking TAMs recruitment, TAMs reprogramming and suppressing immunosuppressive tumor microenvironment. We also discuss about several ways to improve the efficacy of TAM-targeting therapy from the perspective of combination therapy and specificity of TAMs subgroups.
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Affiliation(s)
- Mengjun Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, No.17, 3rd Section of People's South Road, 610041, Chengdu, China
| | - Linye He
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, No.17, 3rd Section of People's South Road, 610041, Chengdu, China.,Department of Thyroid and Parathyroid Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jing Zhu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, No.17, 3rd Section of People's South Road, 610041, Chengdu, China
| | - Peng Zhang
- Department of Urinary Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Shufang Liang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, No.17, 3rd Section of People's South Road, 610041, Chengdu, China.
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Abstract
Tumor-associated macrophages (TAMs) are abundant, nearly accounting for 30-50% of stromal cells in the tumor microenvironment. TAMs exhibit an immunosuppressive M2-like phenotype in advanced cancer, which plays a crucial role in tumor growth, invasion and migration, angiogenesis and immunosuppression. Consequently, the TAM-targeting therapies are particularly of significance in anti-cancer strategies. The application of TAMs as anti-cancer targets is expected to break through traditional tumor-associated therapies and achieves favorable clinical effect. However, the heterogeneity of TAMs makes the strategy of targeting TAMs variable and uncertain. Discovering the subset specificity of TAMs might be a future option for targeting TAMs therapy. Herein, the review focuses on highlighting the different modalities to modulate TAM's functions, including promoting the phagocytosis of TAMs, TAMs depletion, blocking TAMs recruitment, TAMs reprogramming and suppressing immunosuppressive tumor microenvironment. We also discuss about several ways to improve the efficacy of TAM-targeting therapy from the perspective of combination therapy and specificity of TAMs subgroups.
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Affiliation(s)
- Mengjun Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, No.17, 3rd Section of People's South Road, 610041, Chengdu, China
| | - Linye He
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, No.17, 3rd Section of People's South Road, 610041, Chengdu, China
- Department of Thyroid and Parathyroid Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jing Zhu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, No.17, 3rd Section of People's South Road, 610041, Chengdu, China
| | - Peng Zhang
- Department of Urinary Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Shufang Liang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, No.17, 3rd Section of People's South Road, 610041, Chengdu, China.
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