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Zhou T, Qian H, Zhang D, Fang W, Yao M, Shi H, Chen T, Chai C, Guo B. PGRN inhibits CD8 +T cell recruitment and promotes breast cancer progression by up-regulating ICAM-1 on TAM. Cancer Immunol Immunother 2024; 73:76. [PMID: 38554213 PMCID: PMC10981592 DOI: 10.1007/s00262-024-03655-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 02/11/2024] [Indexed: 04/01/2024]
Abstract
BACKGROUND Tumor microenvironment actually reduces antitumor effect against the immune attack by exclusion of CD8+T cells. Progranulin (PGRN) is a multifunctional growth factor with significant pathological effects in multiple tumors; however, its role in immunity evasion of breast cancer (BCa) is not completely understood. METHODS We depleted GRN (PGRN gene) genetically in mice or specifically in PY8119 murine BCa cell line, and mouse models of orthotopic or subcutaneous transplantation were used. Chimeric mice-deficient of PGRN (Grn-/-) in bone marrow (BM) compartment was also generated. Association of PGRN expression with chemokine production or BCa development was investigated by histological and immunological assays. RESULTS We found PGRN was involved in exhaustion of cytotoxic CD8+T cell in BCa with the increasing expressions of M2 markers and intercellular cell adhesion molecule-1 (ICAM-1) on macrophages. Specifically, ablation of PGRN in PY8119 cells reduced tumor burden, accompanied by the infiltrating of cytotoxic CD8+T cells into tumor nests. Moreover, our result revealed that blockade of PD-1 in PGRN-depleted tumors exhibited better antitumor effect in vivo and significantly decreased tumor burden. CONCLUSION These findings suggest that inhibition of PGRN may act as a potential immune-therapeutic strategy by recovering infiltration of CD8+T cell in BCa tissue and thereby enhancing the response to anti-PD-1 therapy.
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Affiliation(s)
- Ting Zhou
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Husun Qian
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Dian Zhang
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Wenli Fang
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - MengLi Yao
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - He Shi
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Tingmei Chen
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Chengsen Chai
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, People's Republic of China.
| | - Bianqin Guo
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, 400030, People's Republic of China.
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Chen Y, Lei Y, Li J, Wang X, Li G. Macrophage-derived exosomal microRNAs promote metastasis in pancreatic ductal adenocarcinoma. Int Immunopharmacol 2024; 129:111590. [PMID: 38316083 DOI: 10.1016/j.intimp.2024.111590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 02/07/2024]
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) is a highly invasive disease that can metastasize to distant organs such as the lung and liver. However, the exact mechanisms underlying PDAC metastasis remain unclear. Tumor-associated macrophages (TAMs) have been shown to play a critical role in cancer initiation, progression, outgrowth, and metastasis, likely through their interaction with cancer cells via extracellular vesicles known as exosomes. However, the precise mechanisms of this interaction are not fully understood. METHODS In this study, we obtained TAMs from PDAC patients and isolated exosomes from their culture medium. We characterized these exosomes and analyzed their miRNA expression profiles using Multiplex miRNA assays with FirePlex particle technology. Additionally, we conducted in vitro co-culture experiments between PDAC cells and conditioned media or exosomes from TAMs to investigate the crosstalk between these cells via exosomes. Furthermore, we evaluated the in vivo lung metastasis of PDAC cells treated with TAM-derived exosomes in athymic nude mice. RESULTS TAMs from PDAC patients promoted the invasiveness and migratory potential of PDAC cells, partially through the effects of TAM-derived exosomes. Specifically, we identified two microRNAs, miR-202-5p and miR-142-5p, which were transferred from TAM-derived exosomes to PDAC cells, resulting in the suppression of phosphatase and tensin homolog deleted on chromosome ten (PTEN) and promoting their invasiveness and migratory potential. We also found that distal metastasis was increased in PDAC cells treated with TAM-derived exosomes, partially through miR-202-5p and miR-142-5p. CONCLUSIONS Exosomal transfer of miR-202-5p and miR-142-5p plays a significant role in conferring invasiveness and migratory potential to PDAC cells. Targeting exosome communication may represent a promising new therapeutic strategy for reducing cancer metastasis of PDACs.
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Affiliation(s)
- Yi Chen
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Shanghai Institute of Medical Imaging, Shanghai 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - Yangyang Lei
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Shanghai Institute of Medical Imaging, Shanghai 200032, China
| | - Jianke Li
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Shanghai Institute of Medical Imaging, Shanghai 200032, China
| | - Xiaolin Wang
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Shanghai Institute of Medical Imaging, Shanghai 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - Guoping Li
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Shanghai Institute of Medical Imaging, Shanghai 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai 200032, China.
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Yang S, Wang M, Hua Y, Li J, Zheng H, Cui M, Huang N, Liu Q, Liao Q. Advanced insights on tumor-associated macrophages revealed by single-cell RNA sequencing: The intratumor heterogeneity, functional phenotypes, and cellular interactions. Cancer Lett 2024; 584:216610. [PMID: 38244910 DOI: 10.1016/j.canlet.2024.216610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 11/28/2023] [Accepted: 12/18/2023] [Indexed: 01/22/2024]
Abstract
Single-cell RNA sequencing (scRNA-seq) is an emerging technology used for cellular transcriptome analysis. The application of scRNA-seq has led to profoundly advanced oncology research, continuously optimizing novel therapeutic strategies. Intratumor heterogeneity extensively consists of all tumor components, contributing to different tumor behaviors and treatment responses. Tumor-associated macrophages (TAMs), the core immune cells linking innate and adaptive immunity, play significant roles in tumor progression and resistance to therapies. Moreover, dynamic changes occur in TAM phenotypes and functions subject to the regulation of the tumor microenvironment. The heterogeneity of TAMs corresponding to the state of the tumor microenvironment has been comprehensively recognized using scRNA-seq. Herein, we reviewed recent research and summarized variations in TAM phenotypes and functions from a developmental perspective to better understand the significance of TAMs in the tumor microenvironment.
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Affiliation(s)
- Sen Yang
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science, and Peking Union Medical College, Beijing, 100730, China
| | - Mengyi Wang
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science, and Peking Union Medical College, Beijing, 100730, China
| | - Yuze Hua
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science, and Peking Union Medical College, Beijing, 100730, China
| | - Jiayi Li
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science, and Peking Union Medical College, Beijing, 100730, China
| | - Huaijin Zheng
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science, and Peking Union Medical College, Beijing, 100730, China
| | - Ming Cui
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science, and Peking Union Medical College, Beijing, 100730, China
| | - Nan Huang
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science, and Peking Union Medical College, Beijing, 100730, China
| | - Qiaofei Liu
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science, and Peking Union Medical College, Beijing, 100730, China.
| | - Quan Liao
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science, and Peking Union Medical College, Beijing, 100730, China.
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Kumari A, Syeda S, Rawat K, Kumari R, Shrivastava A. Melatonin modulates L-arginine metabolism in tumor-associated macrophages by targeting arginase 1 in lymphoma. Naunyn Schmiedebergs Arch Pharmacol 2024; 397:1163-1179. [PMID: 37639022 DOI: 10.1007/s00210-023-02676-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 08/14/2023] [Indexed: 08/29/2023]
Abstract
L-Arginine metabolism plays a crucial role in determining the M1/M2 polarization of macrophages. The M1 macrophages express inducible nitric oxide synthase (iNOS), while the M2 macrophages express arginase 1 and metabolize arginine into nitric oxide and urea, respectively. The tumor microenvironment promotes M2 macrophage polarization and consequently switches the metabolic fate of arginine from nitric oxide towards urea production. Importantly, infiltration of M2 macrophages or tumor-associated macrophages (TAMs) has been correlated with poor prognosis of various cancer types. Melatonin is well reported to have antitumor and immunomodulatory properties. However, whether and how it impacts the polarization of TAMs has not been elucidated. Considering the crucial role of arginine metabolism in macrophage polarization, we were interested to know the fate of L-arginine in TAMs and whether it can be reinstated by melatonin or not. We used a murine model of Dalton's lymphoma and established an in vitro model of TAMs. For TAMs, we used the ascitic fluid of tumor-bearing hosts to activate the macrophages in the presence and absence of lipopolysaccharide (LPS). In these groups, L-arginine metabolism was evaluated, and then the effect of melatonin was assessed in these groups, wherein the metabolic fate of arginine as well as the expression of iNOS and arginase 1 were checked. Furthermore, in the in vivo system of the tumor-bearing host, the effect of melatonin was assessed. The in vitro model of TAMs showed a Th2 cytokine profile, reduced phagocytic activity, and increased wound healing ability. Upon investigating arginine metabolism, we observed high urea levels with increased activity and expression of arginase 1 in TAMs. Furthermore, we observed reduced levels of LPS-induced nitric oxide in TAMs; however, their iNOS expression was comparable. With melatonin treatment, urea level decreased significantly, while the reduction in nitric oxide level was not as significant as observed in its absence in TAMs. Also, melatonin significantly reduced arginase activity and expression at the transcriptional and translational levels, while iNOS expression was affected only at the translational level. This effect was further investigated in the in vivo system, wherein melatonin treatment reversed the metabolic fate of arginine, from urea towards nitric oxide, within the tumor microenvironment. This effect was further correlated with pro-apoptotic tumor cell death in the in vivo system. Our results reinforced the immunomodulatory role of melatonin and offered a strong prospect for activating the anti-tumor immune response in cancer conditions.
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Affiliation(s)
- Anupma Kumari
- Department of Zoology, University of Delhi, Delhi, 110007, India
| | - Saima Syeda
- Department of Zoology, University of Delhi, Delhi, 110007, India
| | - Kavita Rawat
- Department of Zoology, University of Delhi, Delhi, 110007, India
| | - Rani Kumari
- Department of Zoology, University of Delhi, Delhi, 110007, India
| | - Anju Shrivastava
- Department of Zoology, University of Delhi, Delhi, 110007, India.
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5
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Ji S, Shi Y, Yin B. Macrophage barrier in the tumor microenvironment and potential clinical applications. Cell Commun Signal 2024; 22:74. [PMID: 38279145 PMCID: PMC10811890 DOI: 10.1186/s12964-023-01424-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 12/05/2023] [Indexed: 01/28/2024] Open
Abstract
The tumor microenvironment (TME) constitutes a complex microenvironment comprising a diverse array of immune cells and stromal components. Within this intricate context, tumor-associated macrophages (TAMs) exhibit notable spatial heterogeneity. This heterogeneity contributes to various facets of tumor behavior, including immune response modulation, angiogenesis, tissue remodeling, and metastatic potential. This review summarizes the spatial distribution of macrophages in both the physiological environment and the TME. Moreover, this paper explores the intricate interactions between TAMs and diverse immune cell populations (T cells, dendritic cells, neutrophils, natural killer cells, and other immune cells) within the TME. These bidirectional exchanges form a complex network of immune interactions that influence tumor immune surveillance and evasion strategies. Investigating TAM heterogeneity and its intricate interactions with different immune cell populations offers potential avenues for therapeutic interventions. Additionally, this paper discusses therapeutic strategies targeting macrophages, aiming to uncover novel approaches for immunotherapy. Video Abstract.
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Affiliation(s)
- Shuai Ji
- Department of Urinary Surgery, The Shengjing Hospital of China Medical University, Shenyang, 110022, China
| | - Yuqing Shi
- Department of Respiratory Medicine, Shenyang 10th People's Hospital, Shenyang, 110096, China
| | - Bo Yin
- Department of Urinary Surgery, The Shengjing Hospital of China Medical University, Shenyang, 110022, China.
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6
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Kerzel T, Giacca G, Beretta S, Bresesti C, Notaro M, Scotti GM, Balestrieri C, Canu T, Redegalli M, Pedica F, Genua M, Ostuni R, Kajaste-Rudnitski A, Oshima M, Tonon G, Merelli I, Aldrighetti L, Dellabona P, Coltella N, Doglioni C, Rancoita PMV, Sanvito F, Naldini L, Squadrito ML. In vivo macrophage engineering reshapes the tumor microenvironment leading to eradication of liver metastases. Cancer Cell 2023; 41:1892-1910.e10. [PMID: 37863068 DOI: 10.1016/j.ccell.2023.09.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 07/27/2023] [Accepted: 09/27/2023] [Indexed: 10/22/2023]
Abstract
Liver metastases are associated with poor response to current pharmacological treatments, including immunotherapy. We describe a lentiviral vector (LV) platform to selectively engineer liver macrophages, including Kupffer cells and tumor-associated macrophages (TAMs), to deliver type I interferon (IFNα) to liver metastases. Gene-based IFNα delivery delays the growth of colorectal and pancreatic ductal adenocarcinoma liver metastases in mice. Response to IFNα is associated with TAM immune activation, enhanced MHC-II-restricted antigen presentation and reduced exhaustion of CD8+ T cells. Conversely, increased IL-10 signaling, expansion of Eomes CD4+ T cells, a cell type displaying features of type I regulatory T (Tr1) cells, and CTLA-4 expression are associated with resistance to therapy. Targeting regulatory T cell functions by combinatorial CTLA-4 immune checkpoint blockade and IFNα LV delivery expands tumor-reactive T cells, attaining complete response in most mice. These findings support a promising therapeutic strategy with feasible translation to patients with unmet medical need.
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Affiliation(s)
- Thomas Kerzel
- Targeted Cancer Gene Therapy Unit, San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; Vita Salute San Raffaele University, 20132 Milan, Italy
| | - Giovanna Giacca
- Targeted Cancer Gene Therapy Unit, San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; Vita Salute San Raffaele University, 20132 Milan, Italy
| | - Stefano Beretta
- Targeted Cancer Gene Therapy Unit, San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; Bioinformatics Core, San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Chiara Bresesti
- Targeted Cancer Gene Therapy Unit, San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; Vita Salute San Raffaele University, 20132 Milan, Italy
| | - Marco Notaro
- Targeted Cancer Gene Therapy Unit, San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; Vita Salute San Raffaele University, 20132 Milan, Italy
| | - Giulia Maria Scotti
- Center for Omics Sciences, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Chiara Balestrieri
- Center for Omics Sciences, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; Experimental Hematology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Tamara Canu
- Preclinical Imaging Facility, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Miriam Redegalli
- Pathology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Federica Pedica
- Vita Salute San Raffaele University, 20132 Milan, Italy; Pathology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Marco Genua
- Genomics of the Innate Immune System Unit, San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Renato Ostuni
- Vita Salute San Raffaele University, 20132 Milan, Italy; Genomics of the Innate Immune System Unit, San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Anna Kajaste-Rudnitski
- Retrovirus-Host Interactions and Innate Immunity to Gene Transfer, San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Masanobu Oshima
- Division of Genetics, Cancer Research Institute, Kanazawa University, Kanazawa 920-1192, Japan
| | - Giovanni Tonon
- Vita Salute San Raffaele University, 20132 Milan, Italy; Center for Omics Sciences, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Ivan Merelli
- Bioinformatics Core, San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; National Research Council, Institute for Biomedical Technologies, 20054 Segrate, Italy
| | - Luca Aldrighetti
- Vita Salute San Raffaele University, 20132 Milan, Italy; Hepatobiliary Surgery Division, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Paolo Dellabona
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Nadia Coltella
- Targeted Cancer Gene Therapy Unit, San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Claudio Doglioni
- Vita Salute San Raffaele University, 20132 Milan, Italy; Pathology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Paola M V Rancoita
- CUSSB University Center for Statistics in the Biomedical Science, Vita Salute San Raffaele University, 20132 Milan, Italy
| | - Francesca Sanvito
- Pathology Unit, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; GLP Test Facility, San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Luigi Naldini
- Targeted Cancer Gene Therapy Unit, San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; Vita Salute San Raffaele University, 20132 Milan, Italy.
| | - Mario Leonardo Squadrito
- Targeted Cancer Gene Therapy Unit, San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; Vita Salute San Raffaele University, 20132 Milan, Italy.
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Wang Y, Johnson KCC, Gatti-Mays ME, Li Z. Emerging strategies in targeting tumor-resident myeloid cells for cancer immunotherapy. J Hematol Oncol 2022; 15:118. [PMID: 36031601 PMCID: PMC9420297 DOI: 10.1186/s13045-022-01335-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 08/09/2022] [Indexed: 12/11/2022] Open
Abstract
Immune checkpoint inhibitors targeting programmed cell death protein 1, programmed death-ligand 1, and cytotoxic T-lymphocyte-associated protein 4 provide deep and durable treatment responses which have revolutionized oncology. However, despite over 40% of cancer patients being eligible to receive immunotherapy, only 12% of patients gain benefit. A key to understanding what differentiates treatment response from non-response is better defining the role of the innate immune system in anti-tumor immunity and immune tolerance. Teleologically, myeloid cells, including macrophages, dendritic cells, monocytes, and neutrophils, initiate a response to invading pathogens and tissue repair after pathogen clearance is successfully accomplished. However, in the tumor microenvironment (TME), these innate cells are hijacked by the tumor cells and are imprinted to furthering tumor propagation and dissemination. Major advancements have been made in the field, especially related to the heterogeneity of myeloid cells and their function in the TME at the single cell level, a topic that has been highlighted by several recent international meetings including the 2021 China Cancer Immunotherapy workshop in Beijing. Here, we provide an up-to-date summary of the mechanisms by which major myeloid cells in the TME facilitate immunosuppression, enable tumor growth, foster tumor plasticity, and confer therapeutic resistance. We discuss ongoing strategies targeting the myeloid compartment in the preclinical and clinical settings which include: (1) altering myeloid cell composition within the TME; (2) functional blockade of immune-suppressive myeloid cells; (3) reprogramming myeloid cells to acquire pro-inflammatory properties; (4) modulating myeloid cells via cytokines; (5) myeloid cell therapies; and (6) emerging targets such as Siglec-15, TREM2, MARCO, LILRB2, and CLEVER-1. There is a significant promise that myeloid cell-based immunotherapy will help advance immuno-oncology in years to come.
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Affiliation(s)
- Yi Wang
- Division of Medical Oncology, Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | | | - Margaret E Gatti-Mays
- Division of Medical Oncology, Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA.
- Stefanie Spielman Comprehensive Breast Center, Columbus, OH, USA.
| | - Zihai Li
- Division of Medical Oncology, Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA.
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Ma J, Chen S, Liu Y, Han H, Gong M, Song Y. The role of exosomal miR-181b in the crosstalk between NSCLC cells and tumor-associated macrophages. Genes Genomics 2022. [PMID: 35150402 DOI: 10.1007/s13258-022-01227-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 01/27/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND It has been reported that tumor-associated macrophages (TAMs) participate in modulating the progression of cancer in the tumor microenvironment. However, the crosstalk between TAMs and non-small cell lung cancer (NSCLC) is still unclear. OBJECTIVE We investigated whether NSCLC-derived exosomes could affect TAMs, which feedback modulated progression of NSCLC. METHODS MiR-181b expression was measured by RT-PCR. Human THP-1 monocyte was differentiated into macrophages with phorbol myristate acetate, which were further identified by transmission electron microscopy and western blot. Macrophage M1 and M2 polarizations were detected by flow cytometry, RT-PCR and western blot. Proliferation, migration, and invasion of NSCLC cells treated with conditioned mediums were detected by EdU and Transwell assays. RESULTS We demonstrated that miR-181b was up-regulated in exosomes derived from NSCLC patients' serum and NSCLC cells. MiR-181b could be transferred to macrophages via exosomes in the co-culture system of macrophages and NSCLC cells, which promoted macrophage M2 polarization. Further examinations revealed that exosomes derived from NSCLC cells could enhanced macrophage M2 polarizations by regulating miR-181b/JAK2/STAT3 axis, and silencing miR-181b in NSCLC cells and JAK2 inhibitor used in macrophages could reverse the effects. Importantly, the conditioned medium of macrophages treated with NSCLC cell-derived exosomes could promote NSCLC cell proliferation, migration, and invasion. Silencing miR-181b in NSCLC cells and JAK2 inhibitor used in macrophages could block the effects. CONCLUSIONS All of these results indicated that exosomal miR-181b participated in the crosstalk between NSCLC cells and TAMs, providing potential therapeutic targets for NSCLC.
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Zhao L, Zhang H, Liu X, Xue S, Chen D, Zou J, Jiang H. TGR5 deficiency activates antitumor immunity in non-small cell lung cancer via restraining M2 macrophage polarization. Acta Pharm Sin B 2022; 12:787-800. [PMID: 35256947 PMCID: PMC8897042 DOI: 10.1016/j.apsb.2021.07.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 05/12/2021] [Accepted: 05/18/2021] [Indexed: 12/15/2022] Open
Abstract
The bile acid-responsive G-protein-coupled receptor TGR5 is expressed in monocytes and macrophages, and plays a critical role in regulating inflammatory response. Our previous work has shown its role in promoting the progression of non-small cell lung cancer (NSCLC), yet the mechanism remains unclear. Here, using Tgr5-knockout mice, we show that TGR5 is required for M2 polarization of tumor-associated macrophages (TAMs) and suppresses antitumor immunity in NSCLC via involving TAMs-mediated CD8+ T cell suppression. Mechanistically, we demonstrate that TGR5 promotes TAMs into protumorigenic M2-like phenotypes via activating cAMP-STAT3/STAT6 signaling. Induction of cAMP production restores M2-like phenotypes in TGR5-deficient macrophages. In NSCLC tissues from human patients, the expression of TGR5 is associated with the infiltration of TAMs. The co-expression of TGR5 and high TAMs infiltration are associated with the prognosis and overall survival of NSCLC patients. Together, this study provides molecular mechanisms for the protumor function of TGR5 in NSCLC, highlighting its potential as a target for TAMs-centric immunotherapy in NSCLC.
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Wang S, Jiang H, Zheng C, Gu M, Zheng X. Secretion of BMP-2 by tumor-associated macrophages (TAM) promotes microcalcifications in breast cancer. BMC Cancer 2022; 22:34. [PMID: 34983451 PMCID: PMC8729115 DOI: 10.1186/s12885-021-09150-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 12/23/2021] [Indexed: 01/14/2023] Open
Abstract
Introduction Breast microcalcifications is a characteristic feature in diagnostic imaging and a prognostic factor of breast cancer. However, the underlying mechanisms of breast microcalcifications formation are not fully understood. Previous studies have shown that upregulation of bone morphogenetic protein 2 (BMP-2) is associated with the occurrence of microcalcifications and tumor-associated macrophages (TAMs) in the tumor microenvironment can secrete BMP-2. The aim of this study is to elucidate the role of secretion of BMP-2 by TAMs in promoting microcalcifications of breast cancer through immunohistochemical staining and co-culturing of breast cancer cells with TAMs. Methods A total of 272 patients diagnosed with primary invasive breast cancer from January 2010 to January 2012 in the First Hospital of China Medical University were included in this study. Immunohistochemical staining of CD68 (marker of entire macrophages), CD168 (marker of the M2-like macrophages) and BMP-2 were performed on 4-μm tissue microarray (TMA) sections. Following induction, THP-1 cells were differentiated to M2-like TAMs and were then co-cultured with breast cancer cells (MCF-7). Calcifications and BMP-2 expression were analyzed by Alizarin Red S staining and western blot, respectively. Results Immunohistochemical analysis showed that the expression of CD168 was significantly increased in tissues with microcalcifications and was correlated with the expression of BMP-2 and poor prognosis. The formation of cellular microcalcifications and BMP-2 expression were significantly increased in MCF-7 cells co-cultured with TAMs compared with MCF-7 cells alone. Conclusions These findings support the hypothesis that TAMs secrete BMP-2 to induce microcalcifications in breast cancer cells and influence prognosis via multiple pathways including BMP-2 and its downstream factors. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-09150-3.
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Affiliation(s)
- Shuo Wang
- Department of Breast Surgery, First Affiliated Hospital, China Medical University, 155 North Nanjing Street, Shenyang, 110001, Liaoning, China
| | - Haiyang Jiang
- Department of Breast Surgery, First Affiliated Hospital, China Medical University, 155 North Nanjing Street, Shenyang, 110001, Liaoning, China
| | - Caiwei Zheng
- University of Miami Miller School of Medicine, Miami, FL, USA
| | - Ming Gu
- Department of Breast Surgery, First Affiliated Hospital, China Medical University, 155 North Nanjing Street, Shenyang, 110001, Liaoning, China
| | - Xinyu Zheng
- Department of Breast Surgery, First Affiliated Hospital, China Medical University, 155 North Nanjing Street, Shenyang, 110001, Liaoning, China. .,Lab 1, Cancer Institute, First Affiliated Hospital, China Medical University, Shenyang, Liaoning, China.
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11
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Wang X, Wu Y, Gu J, Xu J. Tumor-associated macrophages in lung carcinoma: From mechanism to therapy. Pathol Res Pract 2021; 229:153747. [PMID: 34952424 DOI: 10.1016/j.prp.2021.153747] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 12/15/2021] [Accepted: 12/16/2021] [Indexed: 12/09/2022]
Abstract
Tumor-associated macrophages (TAMs), which could be classified into the classical (M1-like) and alternatively activated (M2-like) phenotype, were considered to be important tumor-promoting components in lung cancer microenvironment. Several studies reported that TAMs in lung tumor islet or stroma are usually correlated with poor prognosis. Further studies showed that TAMs could promote the initiation of tumor cells, inhibit antitumor immune responses, and stimulate tumor angiogenesis and subsequently tumor metastasis of lung carcinoma. Currently, TAMs have been considered as penitential targets of lung cancer. This review summarizes from the fundamental information of TAMs to the its role in metastasis and present evidence for TAMs as a potential target of cancer therapy.
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Affiliation(s)
- Xueying Wang
- Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Yining Wu
- Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Jiahui Gu
- Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Jian Xu
- Department of Laboratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China; National Key Clinical Department of Laboratory Medicine, Nanjing 210029, China.
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12
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Zhao C, Pang X, Yang Z, Wang S, Deng H, Chen X. Nanomaterials targeting tumor associated macrophages for cancer immunotherapy. J Control Release 2021; 341:272-284. [PMID: 34813877 DOI: 10.1016/j.jconrel.2021.11.028] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 11/16/2021] [Accepted: 11/17/2021] [Indexed: 12/27/2022]
Abstract
Tumor-associated macrophages (TAMs) play an important role in regulating tumor growth, invasion and metastasis, and constitute approximately 50% of tumor mass. TAMs can exist in two different subtypes, M1-polarized phenotype (pro-inflammatory and immunostimulatory) and M2-polarized phenotype (immunosuppressive myeloid cells). M2 macrophages can suppress CD8+ T cells to support tumor survival. A number of biological strategies aimed at engineering macrophages to modulate the tumor immune microenvironment remain at the forefront of cancer research. Here, we review the different therapeutic strategies that have been developed based on nanotechnology to modulate macrophage functions, such as inhibition of macrophage recruitment to tumor, depletion of M2-polarized macrophages, reprograming of M2-polarized macrophages to M1-polarized macrophages, and blocking of the CD47-signal-regulatory protein alpha (CD47-SIRPα) pathway. Furthermore, we also discuss how to image TAMs with nanoparticles to unravel novel treatment options and observe their responses to the various therapies. Overall, macrophage-mediated immune modulation based on nanotechnology can be further investigated to be effectively developed as an immunoadjuvant therapy against different cancers.
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Affiliation(s)
- Caiyan Zhao
- Engineering Research Center of Molecular & Neuroimaging, Ministry of Education School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China
| | - Xiaoyu Pang
- Engineering Research Center of Molecular & Neuroimaging, Ministry of Education School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; School of Life Sciences, Tianjin University and Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin 300072, China
| | - Zuo Yang
- Engineering Research Center of Molecular & Neuroimaging, Ministry of Education School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China
| | - Sheng Wang
- School of Life Sciences, Tianjin University and Tianjin Engineering Center of Micro-Nano Biomaterials and Detection-Treatment Technology, Tianjin 300072, China
| | - Hongzhang Deng
- Engineering Research Center of Molecular & Neuroimaging, Ministry of Education School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; Yong Loo Lin School of Medicine, Faculty of Engineering, National University of Singapore, Singapore 119228, Singapore.
| | - Xiaoyuan Chen
- Yong Loo Lin School of Medicine, Faculty of Engineering, National University of Singapore, Singapore 119228, Singapore; Clinical Imaging Research Centre, Centre for Translational Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore; Nanomedicine Translational Research Program, NUS Center for Nanomedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
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13
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Wang K, Chen X. Autophagic tumor-associated macrophages promote the endothelial mesenchymal transition in lung adenocarcinomas through the FUT4/p-ezrin pathway. J Thorac Dis 2021; 13:5973-5985. [PMID: 34795945 PMCID: PMC8575842 DOI: 10.21037/jtd-21-1519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 10/16/2021] [Indexed: 12/24/2022]
Abstract
Background Lung adenocarcinoma is one of the most common malignant tumors with high morbidity and mortality, but the effect of Tumor-associated macrophages (TAMs) on lung adenocarcinoma has not been studied clearly now. Methods In this study, TAMs were stably transfected with Atg5 silence or overexpression lentiviral vectors to inhibit or induce autophagy of TAMs. In addition, the expression of fucosyltransferase IV (FUT4) or Ezrin were interfered in TAMs with autophagy. The above treated TAMs were then co-cultured with A549 or H1299 cells. The expressions of genes were detected by qPCR, western blotting, cell immunofluorescence, and enzyme-linked immunosorbent assay. Meanwhile, cell migration and invasion were analyzed by Transwell assay and wound healing assay. Furthermore, the effects of TAMs with autophagy were explored in lung adenocarcinoma xenograft model of mice. Results The results showed that overexpression of autophagy-related gene 5 (ATG5) induced autophagy in TAMs, which increased the expression of FUT4, TGF-β1, and p-ezrin, and promoted epithelial-mesenchymal transition (EMT) in lung adenocarcinoma cells. However, FUT4 silencing partially reversed the effects of TAM autophagy, specifically, the expression of TGF-β1 and p-ezrin was inhibited and EMT in lung adenocarcinoma cells was suppressed. Notably, ezrin deletion in autophagic TAMs induced by rapamycin reduced TGF-β1 expression and suppressed EMT in lung adenocarcinoma cells. Consistently, in vivo experiments also revealed that autophagic TAMs increased the expression of FUT4, TGF-β1, and p-ezrin, and promoted EMT in lung adenocarcinomas. Similarly, FUT4 silencing partially reversed the effects of autophagic TAMs on EMT in lung adenocarcinomas. Conclusions In conclusion, autophagic TAMs promoted TGF-β1 secretion through the FUT4/p-ezrin pathway and induced EMT in co-cultured lung adenocarcinoma cells.
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Affiliation(s)
- Kangwu Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Xiao Chen
- Department of Geriatrics, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
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14
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Abstract
Stimulating antitumor immunity is an attractive idea for suppressing tumors. CD4 + and CD8 + T cells as well as natural killer cells (NK) are the primary antitumor immune cells in the tumor microenvironment (TME). In contrast to these cells, regulatory T cells (Tregs), myeloid-derived suppressor cells (MDSCs), cancer-associated fibroblasts (CAFs), and tumor-associated macrophages (TAMs) release several molecules to suppress antitumor immunity and stimulate cancer cell invasion and proliferation. Adjuvant treatment with certain nontoxic agents is interesting to boost antitumor immunity. Metformin, which is known as an antidiabetes drug, can modulate both antitumor and protumor immune cells within TME. It has the ability to induce the proliferation of CD8 + T lymphocytes and NK cells. On the other hand, metformin attenuates polarization toward TAMs, CAFs, and Tregs. Metformin also may stimulate the antitumor activity of immune system cells, while it interrupts the positive cross-talk and interactions between immunosuppressive cells and cancer cells. The purpose of this review is to explain the basic mechanisms for the interactions and communications between immunosuppressive, anti-tumoral, and cancer cells within TME. Next, we discuss the modulating effects of metformin on various cells and secretions in TME.
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Affiliation(s)
- Zihong Wu
- Department of Oncology, The NO.3 People's Hospital of Hubei Province, Jianghan University, Wuhan, 430033, Hubei, China
| | - Caidie Zhang
- Emergency Department, Wuhan Hospital of Traditional Chinese Medicine, Wuhan, 430014, Hubei, China.
| | - Masoud Najafi
- Medical Technology Research Center, Institute of Health Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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15
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Duan WH, Jin LY, Cai ZC, Lim D, Feng ZH. 2-Hexyl-4-Pentylenic Acid (HPTA) Stimulates the Radiotherapy-induced Abscopal Effect on Distal Tumor through Polarization of Tumor-associated Macrophages. Biomed Environ Sci 2021; 34:693-704. [PMID: 34530959 DOI: 10.3967/bes2021.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 03/09/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVE The aim of this study was to explore the effects of 2-hexyl-4-pentylenic acid (HPTA) in combination with radiotherapy (RT) on distant unirradiated breast tumors. METHODS Using a rat model of chemical carcinogen (7,12-dimethylbenz[a]anthracene,DMBA)-induced breast cancer, tumor volume was monitored and treatment response was evaluated by performing HE staining, immunohistochemistry, immunofluorescence, qRT-PCR, and western blot analyses. RESULTS The results demonstrated that HPTA in combination with RT significantly delayed the growth of distant, unirradiated breast tumors. The mechanism of action included tumor-associated macrophage (TAM) infiltration into distant tumor tissues, M1 polarization, and inhibition of tumor angiogenesis by IFN-γ. CONCLUSION The results suggest that the combination of HPTA with RT has an abscopal effect on distant tumors via M1-polarized TAMs, and HPTA may be considered as a new therapeutic for amplifying the efficacy of local RT for non-targeted breast tumors. UNLABELLED The graphical abstract was available in the web of www.besjournal.com.
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Affiliation(s)
- Wen Hua Duan
- Department of Occupational Health and Occupational Medicine, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Li Ya Jin
- Department of Occupational Health and Occupational Medicine, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Zu Chao Cai
- Department of Occupational Health and Occupational Medicine, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - David Lim
- School of Health Sciences, Western Sydney University, Campbelltown 2560, Australia
| | - Zhi Hui Feng
- Department of Occupational Health and Occupational Medicine, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
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16
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Abstract
Macrophages are an abundant population in the tumor-infiltrating immune cells. The transcription factor NF-κB plays an important role in the response of tumor-associated macrophages (TAMs) to the tumor environmental cues. Detecting NF-κB activity in TAMs will help define the functional status of the TAMs. In this article, we describe several methods to detect NF-κB activity in TAM populations.
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17
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Nigam S, McCarl L, Kumar R, Edinger RS, Kurland BF, Anderson CJ, Panigrahy A, Kohanbash G, Edwards WB. Preclinical ImmunoPET Imaging of Glioblastoma-Infiltrating Myeloid Cells Using Zirconium-89 Labeled Anti-CD11b Antibody. Mol Imaging Biol 2020; 22:685-94. [PMID: 31529407 DOI: 10.1007/s11307-019-01427-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
PURPOSE Glioblastoma is a lethal brain tumor, heavily infiltrated by tumor-associated myeloid cells (TAMCs). TAMCs are emerging as a promising therapeutic target as they suppress anti-tumor immune responses and promote tumor cell growth. Quantifying TAMCs using non-invasive immunoPET could facilitate patient stratification for TAMC-targeted treatments and monitoring of treatment efficacy. As TAMCs uniformly express the cell surface marker, integrin CD11b, we evaluated a Zr-89 labeled anti-CD11b antibody for non-invasive imaging of TAMCs in a syngeneic orthotopic mouse glioma model. PROCEDURES A human/mouse cross-reactive anti-CD11b antibody (clone M1/70) was conjugated to a DFO chelator and radiolabeled with Zr-89. PET/CT and biodistribution with or without a blocking dose of anti-CD11b Ab were performed 72 h post-injection (p.i.) of [89Zr]anti-CD11b Ab in mice bearing established orthotopic syngeneic GL261 gliomas and in non tumor-bearing mice. Flow cytometry and immunohistochemistry of dissected GL261 tumors were conducted to confirm the presence of CD11b+ TAMCs. RESULTS Significant uptake of [89Zr]anti-CD11b Ab was detected at the tumor site (SUVmean = 2.60 ± 0.24) compared with the contralateral hemisphere (SUVmean = 0.6 ± 0.11). Blocking with a 10-fold lower specific activity of [89Zr]anti-CD11b Ab markedly reduced the SUV in the right brain (SUVmean = 0.11 ± 0.06), demonstrating specificity. Spleen and lymph nodes (myeloid cell rich organs) also showed high uptake of the tracer, and biodistribution analysis correlated with the imaging results. CD11b expression within the tumor was validated using flow cytometry and immunohistochemistry, which showed high CD11b expression primarily in the tumoral hemisphere compared with the contralateral hemisphere with very minimal accumulation in non tumor-bearing brain. CONCLUSION These data establish that [89Zr]anti-CD11b Ab immunoPET targets CD11b+ cells (TAMCs) with high specificity in a mouse model of GBM, demonstrating the potential for non-invasive quantification of tumor-infiltrating CD11b+ immune cells during disease progression and immunotherapy in patients with GBM.
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18
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Hussain SM, Kansal RG, Alvarez MA, Hollingsworth TJ, Elahi A, Miranda-Carboni G, Hendrick LE, Pingili AK, Albritton LM, Dickson PV, Deneve JL, Yakoub D, Hayes DN, Kurosu M, Shibata D, Makowski L, Glazer ES. Role of TGF-β in pancreatic ductal adenocarcinoma progression and PD-L1 expression. Cell Oncol (Dordr) 2021; 44:673-687. [PMID: 33694102 DOI: 10.1007/s13402-021-00594-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/04/2021] [Indexed: 02/07/2023] Open
Abstract
PURPOSE The transforming growth factor-beta (TGF-β) pathway plays a paradoxical, context-dependent role in pancreatic ductal adenocarcinoma (PDAC): a tumor-suppressive role in non-metastatic PDAC and a tumor-promotive role in metastatic PDAC. We hypothesize that non-SMAD-TGF-β signaling induces PDAC progression. METHODS We investigated the expression of non-SMAD-TGF-β signaling proteins (pMAPK14, PD-L1, pAkt and c-Myc) in patient-derived tissues, cell lines and an immunocompetent mouse model. Experimental models were complemented by comparing the signaling proteins in PDAC specimens from patients with various survival intervals. We manipulated models with TGF-β, gemcitabine (DNA synthesis inhibitor), galunisertib (TGF-β receptor inhibitor) and MK-2206 (Akt inhibitor) to investigate their effects on NF-κB, β-catenin, c-Myc and PD-L1 expression. PD-L1 expression was also investigated in cancer cells and tumor associated macrophages (TAMs) in a mouse model. RESULTS We found that tumors from patients with aggressive PDAC had higher levels of the non-SMAD-TGF-β signaling proteins pMAPK14, PD-L1, pAkt and c-Myc. In PDAC cells with high baseline β-catenin expression, TGF-β increased β-catenin expression while gemcitabine increased PD-L1 expression. Gemcitabine plus galunisertib decreased c-Myc and NF-κB expression, but induced PD-L1 expression in some cancer models. In mice, gemcitabine plus galunisertib treatment decreased metastases (p = 0.018), whereas galunisertib increased PD-L1 expression (p < 0.0001). In the mice, liver metastases contained more TAMs compared to the primary pancreatic tumors (p = 0.001), and TGF-β increased TAM PD-L1 expression (p < 0.05). CONCLUSIONS In PDAC, the non-SMAD-TGF-β signaling pathway leads to more aggressive phenotypes, TAM-induced immunosuppression and PD-L1 expression. The divergent effects of TGF-β ligand versus receptor inhibition in tumor cells versus TAMs may explain the TGF-β paradox. Further evaluation of each mechanism is expected to lead to the development of targeted therapies.
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Affiliation(s)
- S Mazher Hussain
- Department of Surgery, College of Medicine, 910 Madison Ave., Suite 300, Memphis, TN, 38163, USA
| | - Rita G Kansal
- Department of Surgery, College of Medicine, 910 Madison Ave., Suite 300, Memphis, TN, 38163, USA
| | - Marcus A Alvarez
- Department of Surgery, College of Medicine, 910 Madison Ave., Suite 300, Memphis, TN, 38163, USA
| | - T J Hollingsworth
- Department of Surgery, College of Medicine, 910 Madison Ave., Suite 300, Memphis, TN, 38163, USA
| | - Abul Elahi
- Department of Surgery, College of Medicine, 910 Madison Ave., Suite 300, Memphis, TN, 38163, USA
| | | | - Leah E Hendrick
- Department of Surgery, College of Medicine, 910 Madison Ave., Suite 300, Memphis, TN, 38163, USA
| | | | | | - Paxton V Dickson
- Department of Surgery, College of Medicine, 910 Madison Ave., Suite 300, Memphis, TN, 38163, USA
| | - Jeremiah L Deneve
- Department of Surgery, College of Medicine, 910 Madison Ave., Suite 300, Memphis, TN, 38163, USA
| | - Danny Yakoub
- Department of Surgery, College of Medicine, 910 Madison Ave., Suite 300, Memphis, TN, 38163, USA
| | - D Neil Hayes
- Department of Medicine, College of Medicine, Memphis, TN, USA
| | - Michio Kurosu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - David Shibata
- Department of Surgery, College of Medicine, 910 Madison Ave., Suite 300, Memphis, TN, 38163, USA
| | - Liza Makowski
- Department of Medicine, College of Medicine, Memphis, TN, USA.,Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Evan S Glazer
- Department of Surgery, College of Medicine, 910 Madison Ave., Suite 300, Memphis, TN, 38163, USA.
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19
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Li X, Chen Z, Ni Y, Bian C, Huang J, Chen L, Xie X, Wang J. Tumor-associated macrophages secret exosomal miR-155 and miR-196a-5p to promote metastasis of non-small-cell lung cancer. Transl Lung Cancer Res 2021; 10:1338-1354. [PMID: 33889514 PMCID: PMC8044469 DOI: 10.21037/tlcr-20-1255] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Background Understanding the molecular basis underlying metastasis of non-small cell lung cancer (NSCLC) may provide a new therapeutic modality for the treatment of NSCLC. However, the mechanisms by which tumor-associated macrophages (TAMs) affect NSCLC metastasis remain undefined. In this study, we aimed to discover a novel regulatory pathway involved in NSCLC metastasis. Methods Cell Counting Kit-8 (CCK-8), Transwell, western blot assays were used to assess cell viability, migration, invasion and epithelial-mesenchymal transition (EMT). Exosomes from macrophages medium were characterized, and in vitro cell coculture was further conducted to investigate M2 derived exosomes mediated crosstalk between TAMs and tumor cells. Besides, miRNA microarray was used to analyze miRNA expression profiles of M0 and M2 derived exosomes. Luciferase reporter assay was used to verify the potential binding between miRNA and mRNA. Moreover, 6-week-old male BALB/c nude mice were performed to establish transplantation tumor model using tail vein injection. Hematoxylin & eosin staining was used to detect the metastasis of tumor tissues. Results We found that M2 TAMs were the main TAMs in metastatic tissues of NSCLC patients and exosomes derived from M2 TAMs were able to promote cell viability, cell migration, cell invasion and EMT in NSCLC. We demonstrated that miR-155 and miR-196a-5p were abundant in M2 TAMs and exosomes secreted by M2 TAMs. Functional experiments demonstrated that the deletion of miR-155 and miR-196a-5p in M2 TAMs significantly prevented NSCLC metastasis in vitro and in vivo. To clarify the mechanism governing miR-155 and miR-196a-5p from M2 TAMs, we carried out bioinformatics analysis to predict potential target genes. Mechanistically, miR-155 and miR-196a-5p directly bound to the 3'-UTR of Ras association domain family member 4 (RASSF4), and negatively regulating RASSF4 expression. At last, rescue assays demonstrated that miR-155 and miR-196a-5p exerted its performance by RASSF4. Conclusions Overall, we revealed a new regulatory pathway that was M2 TAMs secreted exosomal miR-155 and miR-196a-5p to promote NSCLC metastasis. This dynamic and reciprocal cross-talk between NSCLC and macrophages innovatively provided a potential opportunity for diagnosis and treatment of NSCLC.
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Affiliation(s)
- Xiang Li
- Department of Thoracic Surgery, Jiangsu Province People's Hospital and the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Zhipeng Chen
- Department of Thoracic Surgery, Jiangsu Province People's Hospital and the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yaojun Ni
- Department of Thoracic Surgery, Jiangsu Province People's Hospital and the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Department of Cardiothoracic Surgery, Huai'an First People's Hospital Affiliated to Nanjing Medical University, Huai'an, China
| | - Chengyu Bian
- Department of Thoracic Surgery, Jiangsu Province People's Hospital and the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jingjing Huang
- Department of Thoracic Surgery, Jiangsu Province People's Hospital and the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Liang Chen
- Department of Thoracic Surgery, Jiangsu Province People's Hospital and the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xueying Xie
- State Key Laboratory of Bioelectronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, China
| | - Jun Wang
- Department of Thoracic Surgery, Jiangsu Province People's Hospital and the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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20
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Abstract
The cancer tissue exists not as a single entity, but as a combination of different cellular phenotypes which, taken together, dramatically contribute to the entirety of their ecosystem, collectively termed as the tumor microenvironment (TME). The TME is composed of both immune and nonimmune cell types, stromal components, and vasculature-all of which cooperate to promote cancer progression. Not all immune cells, however, are immune-suppressive; some of them can promote the immune microenvironment to fight the invading and uncontrollably dividing cell populations at the initial stages of tumor growth. Yet, many of these processes and cellular phenotypes fall short, and the immune ecosystem more often than not ends up stabilizing in favor of the "resistant" resident cells that begin clonal expansion and may progress to metastatic forms. Stromal components, making up the extracellular matrix and basement membrane, are also not the most innocuous: CAFs embedded throughout secrete proteases that allow the onset of one of the most invasive processes-angiogenesis-through destruction of the ECM and the basement membrane. Vasculature formation, because of angiogenesis, is the largest invader of the TME and the reason metastasis happens. Vasculature is so sporadic and omnipresent in the TME that most drug therapies are mainly focused on stopping this uncontrollable process. As the tumor continues to grow, different processes are constantly supplying it with the ingredients favorable for tumor progression and eventual metastasis. For example, angiogenesis promotes blood vessel formation that will allow the bona fide escape of tumor cells to take place. Another process like hypoxia will present itself in several forms throughout the tumor (mild or acute, cycling or permanent), starting mechanisms such as epithelial to mesenchymal transitions (EMT) of resident cells and inadvertently placing the cells in such a stressful condition that production of ROS and DNA damage is unavoidable. DNA damage can induce mutagenicity while allowing resistant cells to survive. This is where drugs and treatments can subsequently suffer in effectiveness. Finally, another molecule has just surfaced as being a very important player in the TME: nitric oxide. Often overlooked and equated with ROS and initially assigned in the category of pathogenic molecules, nitric oxide can definitely do some damage by causing metabolic reprogramming and promotion of immunosuppressive phenotypes at low concentrations. However, its actions seem to be extremely dose-dependent, and this issue has become a hot target of current treatment goals. Shockingly, nitric oxide, although omnipresent in the TME, can have a positive effect on targeting the TME broadly. Thus, while the TME is a myriad of cellular phenotypes and a combination of different tumor-promoting processes, each process is interconnected into one whole: the tumor microenvironment.
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Affiliation(s)
- Anastasia Vedenko
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Kush Panara
- The Interdisciplinary Stem Cell Institute, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Gabriella Goldstein
- College of Health Professions and Sciences, University of Central Florida, Orlando, FL, USA
| | - Ranjith Ramasamy
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Himanshu Arora
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA.
- The Interdisciplinary Stem Cell Institute, University of Miami, Miller School of Medicine, Miami, FL, USA.
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21
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Shu Y, Cheng P. Targeting tumor-associated macrophages for cancer immunotherapy. Biochim Biophys Acta Rev Cancer 2020; 1874:188434. [PMID: 32956767 DOI: 10.1016/j.bbcan.2020.188434] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 09/07/2020] [Accepted: 09/07/2020] [Indexed: 02/07/2023]
Abstract
Macrophages are important effector cells of the innate immune system and are also major components of the tumor microenvironment (TME). Macrophages that are abundant in the TME are called tumor-associated macrophages (TAMs). As TAMs promote strong tumor angiogenesis and support tumor cell survival, they are closely related to tumor growth. Several studies have demonstrated that reducing the density or effects of TAMs can inhibit the growth of tumors, making them targets for cancer immunotherapy, which has become a research hot spot. Several clinical and preclinical trials have studied drugs that inhibit the effects of and reduce the population of phagocytes that target TAMs achieve cancer immunotherapy. In this paper, we summarize the various methods of targeting TAMs for tumor immunotherapy, focusing on TAM mechanisms, sources, and polarization.
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Affiliation(s)
- Yongheng Shu
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Ping Cheng
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, PR China.
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Abstract
A large body of scientific evidence corroborated by clinical and animal model experiments indicates that tumor-associated macrophages (TAMs) play a crucial role in tumor development and progression. TAMs are a key immune cell type present in tumor microenvironment (TME) and associated with poor prognosis, drug resistance, enhanced angiogenesis and metastasis in cancer. TAMs are a phenotypically diverse population of myeloid cells which display tremendous plasticity and dynamic metabolic nature. A complete interpretation of pro-tumoral and anti-tumoral metabolic switch in TAMs is essential to understand immune evasion mechanisms in cancer. Recent studies have also implicated epigenetic mechanisms as significantly regulators of TAM functions. In this review we provide an overview of metabolic circuitry in TAMs, its impact on immune effector cells and interventions aimed at rewiring the metabolic circuits in TAMs. Mechanisms responsible for TAM polarization in cancer are also discussed.
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Affiliation(s)
- Abhishek Puthenveetil
- Amity Institute of Virology & Immunology, Amity University Uttar Pradesh, Noida, India
| | - Shweta Dubey
- Amity Institute of Virology & Immunology, Amity University Uttar Pradesh, Noida, India
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Liu N, Ma M, Qu N, Wang R, Chen H, Hu F, Gao S, Shan F. Low-dose naltrexone inhibits the epithelial-mesenchymal transition of cervical cancer cells in vitro and effects indirectly on tumor-associated macrophages in vivo. Int Immunopharmacol 2020; 86:106718. [PMID: 32585612 DOI: 10.1016/j.intimp.2020.106718] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 06/11/2020] [Accepted: 06/15/2020] [Indexed: 12/24/2022]
Abstract
The metastasis of cervical cancer has always been a clinical challenge. We investigated the effects of low-dose naltrexone (LDN) on the epithelial mesenchymal transition of cervical cancer cells in vitro as well as its influence on macrophage polarization and associated cytokines in vivo. The results suggested that LDN supressed the proliferation, migration and invasion abilities and promote their apoptosis in Hela cells, whereas the opioid growth factor receptor (OGFr) silenced significantly reversed these effects in vitro. Knockdown the expression of OGFr, the inhibitory of LDN on EMT was weakened. LDN could inhibit cervical cancer progression in nude mice. In additon, LDN indirectly reduced the number of tumor-associated macrophages (TAMs), mainly M2 macrophages, and decreased expression of anti-inflammatory factor IL-10 in the serum of nude mice. These findings demonstrate that LDN could be a potential treatment for cervical cancer.
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Affiliation(s)
- Ning Liu
- Department of Immunology, School of Basic Medical Science, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, Liaoning Province, China; Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, No. 39 Huaxiang Road, Tiexi District, Shenyang 110022, Liaoning Province, China
| | - Mingxing Ma
- Department of General Surgery, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110004, Liaoning Province, China
| | - Na Qu
- Department of Gynecology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44, Xiaoheyan Road, Dadong District, Shenyang 110042, Liaoning Province, China
| | - Ruizhe Wang
- Department of Gynecology, No. 1 Affiliated Hospital, China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang 110001, Liaoning, China
| | - Hao Chen
- Department of Immunology, School of Basic Medical Science, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, Liaoning Province, China
| | - Fangzhu Hu
- Department of Immunology, School of Basic Medical Science, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, Liaoning Province, China
| | - Song Gao
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, No. 39 Huaxiang Road, Tiexi District, Shenyang 110022, Liaoning Province, China
| | - Fengping Shan
- Department of Immunology, School of Basic Medical Science, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang 110122, Liaoning Province, China.
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Liu JQ, Hu A, Zhu J, Yu J, Talebian F, Bai XF. CD200-CD200R Pathway in the Regulation of Tumor Immune Microenvironment and Immunotherapy. Adv Exp Med Biol 2020; 1223:155-165. [PMID: 32030689 DOI: 10.1007/978-3-030-35582-1_8] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Tumor-associated inflammation and immune responses are key components in the tumor microenvironment (TME) which regulate tumor growth, progression, and metastasis. Tumor-associated myeloid cells (TAMCs) are a group of cells that play multiple key roles including induction of tumor-associated inflammation/angiogenesis and regulation of tumor-specific T-cell responses. Thus, identification and characterization of key pathways that can regulate TAMCs are of critical importance for developing cancer immunotherapy. Recent studies suggest that CD200-CD200 receptor (CD200R) interaction may be important in regulating the TME via affecting TAMCs. In this chapter, we will give a brief overview of the CD200-CD200R axis, including the biology behind CD200-CD200R interaction and the role(s) it plays in tumor microenvironment and tumor growth, and activation/effector functions of T cells. We will also discuss CD200-CD200R's role as potential checkpoint molecules for cancer immunotherapy. Further investigation of the CD200-CD200R pathway will not only advance our understanding of tumor pathogenesis and immunity but also provide the rationale for CD200-CD200R-targeted immunotherapy of human cancer.
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Affiliation(s)
- Jin-Qing Liu
- Department of Pathology, College of Medicine and Comprehensive Cancer Center, Ohio State University, Columbus, OH, USA
| | - Aiyan Hu
- Department of Pathology, College of Medicine and Comprehensive Cancer Center, Ohio State University, Columbus, OH, USA.,Pediatric Translational Medicine Institute, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jianmin Zhu
- Department of Pathology, College of Medicine and Comprehensive Cancer Center, Ohio State University, Columbus, OH, USA.,Pediatric Translational Medicine Institute, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jianyu Yu
- Department of Pathology, College of Medicine and Comprehensive Cancer Center, Ohio State University, Columbus, OH, USA.,Department of Gastroenterology, Guangdong Provincial Key Laboratory of Gastroenterology, Nan Fang Hospital, Southern Medical University, Guangzhou, China
| | - Fatemeh Talebian
- Department of Pathology, College of Medicine and Comprehensive Cancer Center, Ohio State University, Columbus, OH, USA
| | - Xue-Feng Bai
- Department of Pathology, College of Medicine and Comprehensive Cancer Center, Ohio State University, Columbus, OH, USA.
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25
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Mwafy SE, El-Guindy DM. Pathologic assessment of tumor-associated macrophages and their histologic localization in invasive breast carcinoma. J Egypt Natl Canc Inst 2020; 32:6. [PMID: 32372332 DOI: 10.1186/s43046-020-0018-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 01/08/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Tumor-associated macrophages (TAMs) are important in regulating cross-talk between tumor cells and tumor microenvironment. TAMs are involved in multiple steps of tumor progression and invasion. This study aimed to compare CD163 expression with the widely used CD68 pan-macrophage marker in invasive breast carcinoma. Furthermore, it focused on assessing the significance of TAMs localization in relation to clinicopathological parameters. RESULTS CD68 and CD163 immunohistochemical expressions within TAMs infiltrating both tumor nest (TN) and tumor stroma (TS) were evaluated in 60 specimens with invasive breast carcinoma. High CD68-positive stromal TAMs was significantly related to larger tumor, nodal metastasis and vascular invasion (p = 0.003, 0.037, 0.032, respectively), whereas high CD163-positive stromal TAMs was significantly related to larger tumors, nodal metastasis, stage III tumors, vascular invasion, estrogen receptor (ER) negativity, and triple-negative subtype (p = 0.023, < 0.001, 0.001, 0.022, 0.002, 0.017, respectively). On multivariate analysis, high CD68-positive TAMs infiltrating TS was significantly associated with larger tumor and positive nodal metastasis (p = 0.006 and 0.016, respectively), whereas high CD163 TAMs density within TS was significantly associated with positive vascular invasion, nodal metastasis, and molecular subtypes (p = 0.003, 0.001, and 0.009, respectively). CONCLUSION TAMs within tumor stroma and tumor nest have different levels of association with poor prognostic parameters. So, it is of great importance to consider the histologic localization of TAMs in addition to the degree of TAMs infiltration.
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Affiliation(s)
- Shorouk E Mwafy
- Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Dina M El-Guindy
- Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt.
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Abstract
The pancreatic ductal adenocarcinoma (PDAC) microenvironment is a diverse and complex milieu of immune, stromal, and tumor cells and is characterized by a dense stroma, which mediates the interaction between the tumor and the immune system within the tumor microenvironment (TME). The interaction between stromal and tumor cells signals and shapes the immune infiltration of TME. The desmoplastic compartment contains infiltrated immune cells including tumor-associated macrophages (TAMs) and large numbers of fibroblasts/myofibroblasts dominated by pancreatic stellate cells (PSCs) which contribute to fibrosis. The highly fibrotic stroma with its extensive infiltration of immunosuppressive cells forms the major component of the pro-tumorigenic microenvironment (Laklai et al. Nat Med 22:497-505, 2016, Zhu et al. Cancer Res 74:5057-5069, 2014) provides a barrier to the delivery of cytotoxic agents and limits T-cell access to tumor cells (Feig et al. Proc Natl Acad Sci USA 110:20212-20217, 2013, Provenzano et al Cancer Cell 21:418-429, 2012). Activated PSCs reduced infiltration of cytotoxic T cells to the juxtatumoral stroma (immediately adjacent to the tumor epithelial cells) of PDAC (Ene-Obong et al. Gastroenterology 145:1121-1132, 2013). M1 macrophages activate an immune response against tumor, but M2 macrophages are involved in immunosuppression promoting tumor progression (Noy and Pollard Immunity 41:49-61, 2014, Ruffell et al. Trends Immunol 33:119-126, 2012). The desmoplastic stroma is reported to protect tumor cells against chemotherapies, promoting their proliferation and migration. However, experimental depletion of the desmoplastic stroma has led to more aggressive cancers in animal studies (Nielsen et al. World J Gastroenterol 22:2678-2700, 2016). Hence reprogramming rather than simple depletion of the PDAC stroma has the potential for developing new therapeutic strategies for PC treatment. Modulation of PSCs/fibrosis and immune infiltration/inflammation composes the major aspects of TME reprogramming.
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Affiliation(s)
- Kai Wang
- Department of Surgery, University of Melbourne, Austin Health, Heidelberg, VIC, Australia
| | - Hong He
- Department of Surgery, University of Melbourne, Austin Health, Heidelberg, VIC, Australia.
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Abstract
Tumor immune escape is now a hallmark of cancer development, and therapies targeting these pathways have emerged as standard of care. Specifically, immune checkpoint signal blockade offers durable responses and increased overall survival. However, the majority of cancer patients still do not respond to checkpoint blockade immune therapy leading to an unmet need in tumor immunology research. Sex-based differences have been noted in the use of cancer immunotherapy suggesting that sex hormones such as estrogen may play an important role in tumor immune regulation. Estrogen signaling already has a known role in autoimmunity, and the estrogen receptor can be expressed across multiple immune cell populations and effect their regulation. While it has been well established that tumor cells such as ovarian carcinoma, breast carcinoma, and even lung carcinoma can be regulated by estrogen, research into the role of estrogen in the regulation of tumor-associated immune cells is still emerging. In this chapter, we discuss the role of estrogen in the tumor immune microenvironment and the possible immunotherapeutic implications of targeting estrogen in cancer patients.
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Affiliation(s)
- Ashwin Somasundaram
- Department of Medicine, Division of Hematology/Oncology, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA.,UPMC Hillman Cancer Center, Pittsburgh, PA, USA
| | - Natalie J Rothenberger
- Department of Medicine, Division of Hematology/Oncology, University of Pittsburgh, Pittsburgh, PA, USA.,Geisinger Commonwealth School of Medicine, Scranton, PA, USA
| | - Laura P Stabile
- UPMC Hillman Cancer Center, Pittsburgh, PA, USA. .,Department of Pharmacology & Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA.
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Abstract
Macrophages play an essential role in diverse biological processes, from the immune response to inflammatory and neurodegenerative disorders, to various cancers. A macrophage subpopulation, known as tumor-associated macrophages (TAMs), has been shown to promote tumorigenesis, metastasis, and immune escape of cancer cells. Some of the pro-tumorigenic effects of TAMs are mediated via the secretion of nano-vesicles (exosomes) from macrophages to neighboring cells. In this chapter, we describe peritoneal macrophage isolation methods, polarization of TAMs, and purification and characterization of macrophage-derived exosomes.
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Affiliation(s)
- Eran Fridman
- The Laboratory for Applied Cancer Research, Department of Otolaryngology, Head and Neck Surgery, The Head and Neck Center, Rambam Healthcare Campus, The Technion, Israel Institute of Technology, Haifa, Israel
| | - Lana Ginini
- The Laboratory for Applied Cancer Research, Department of Otolaryngology, Head and Neck Surgery, The Head and Neck Center, Rambam Healthcare Campus, The Technion, Israel Institute of Technology, Haifa, Israel
| | - Ziv Gil
- The Laboratory for Applied Cancer Research, Department of Otolaryngology, Head and Neck Surgery, The Head and Neck Center, Rambam Healthcare Campus, The Technion, Israel Institute of Technology, Haifa, Israel.
| | - Neta Milman
- The Laboratory for Applied Cancer Research, Department of Otolaryngology, Head and Neck Surgery, The Head and Neck Center, Rambam Healthcare Campus, The Technion, Israel Institute of Technology, Haifa, Israel
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Abstract
CX3CL1 (Fractalkine) is a multifunctional inflammatory chemokine with a single receptor CX3CR1. The biological effects elicited by CX3CL1 on surrounding cells vary depending on a number of factors including its structure, the expression pattern of CX3CR1, and the cell type. For instance, the transmembrane form of CX3CL1 primarily serves as an adhesion molecule, but when cleaved to a soluble form, CX3CL1 predominantly functions as a chemotactic cytokine (Fig. 1.1). However, the biological functions of CX3CL1 also extend to immune cell survival and retention. The pro-inflammatory nature of CX3CR1-expressing immune cells place the CX3CL1:CX3CR1 axis as a central player in multiple inflammatory disorders and position this chemokine pathway as a potential therapeutic target. However, the emerging role of this chemokine pathway in the maintenance of effector memory cytotoxic T cell populations implicates it as a key chemokine in anti-viral and anti-tumor immunity, and therefore an unsuitable therapeutic target in inflammation. The reported role of CX3CL1 as a key regulator of cytotoxic T cell-mediated immunity is supported by several studies that demonstrate CX3CL1 as an important TIL-recruiting chemokine and a positive prognostic factor in colorectal, breast, and lung cancer. Such reports are conflicting with an overwhelming number of studies demonstrating a pro-tumorigenic and pro-metastatic role of CX3CL1 across multiple blood and solid malignancies.This chapter will review the unique structure, function, and biology of CX3CL1 and address the diversity of its biological effects in the immune system and the tumor microenvironment. Overall, this chapter highlights how we have just scratched the surface of CX3CL1's capabilities and suggests that further in-depth and mechanistic studies incorporating all CX3CL1 interactions must be performed to fully appreciate its role in cancer and its potential as a therapeutic target.
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Frión-Herrera Y, Gabbia D, Cuesta-Rubio O, De Martin S, Carrara M. Nemorosone inhibits the proliferation and migration of hepatocellular carcinoma cells. Life Sci 2019; 235:116817. [PMID: 31476309 DOI: 10.1016/j.lfs.2019.116817] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/20/2019] [Accepted: 08/28/2019] [Indexed: 12/12/2022]
Abstract
AIMS In the tumor microenvironment, dysregulated immune cells could promote tumor progression, invasion and metastasis, by establishing a symbiotic relationship with cancer cells. A pivotal role is played by monocyte recruitment and induction of tumor-associated macrophages (TAMs), which provide immunosuppression and tumorigenesis. The effect of nemorosone, an antiproliferative phytocomponent present in Cuban Propolis, on TAM-induced tumor progression remains to be elucidated. Here we investigated the symbiotic relationship between monocytic leukemia THP-1 and hepatocellular carcinoma HepG2 cells, and the role of nemorosone in preventing TAM-induced tumor growth. MAIN METHODS Macrophage differentiation induced by HepG2-conditioned medium was assessed by flow cytometry, analysis of secreted molecules and cytokine expression. The effect of nemorosone and/or conditioned THP-1-medium on HepG2 proliferation was evaluated by MTT assay, colony formation, cells cycle and migration assays. KEY FINDINGS HepG2 cells induced THP-1 recruitment and differentiation to macrophages. When compared with control THP-1 cells, differentiated THP-1 showed a significant increase of the matrix metalloproteinases MMP-2 and MMP-9 expression (P < 0.01), and slightly induced HepG2 cells growth. This effect was counteracted by nemorosone, which also significantly inhibited colony formation (P < 0.01) and migratory capacity of HepG2 cells, driving a high percentage of cells (80%) to the G0/G1 phase. SIGNIFICANCE HepG2-conditioned medium is a suitable model for THP-1 modulation and differentiation. Moreover, nemorosone significantly inhibits the proliferation of HepG2 cells, both in presence and absence of the soluble factors secreted by TAMs. Further studies are needed to elucidate the role of this natural compound in the HCC-TAM relationship.
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Affiliation(s)
- Yahima Frión-Herrera
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, L.go Meneghetti 2, Italy
| | - Daniela Gabbia
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, L.go Meneghetti 2, Italy
| | - Osmany Cuesta-Rubio
- Chemistry and Health Faculty, Technical University of Machala, Ave. Panamericana Vía a Pasaje Km. 5 1/2, Ecuador
| | - Sara De Martin
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, L.go Meneghetti 2, Italy.
| | - Maria Carrara
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, L.go Meneghetti 2, Italy
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Zhang Q, Mao Z, Sun J. NF-κB inhibitor, BAY11-7082, suppresses M2 tumor-associated macrophage induced EMT potential via miR-30a/NF-κB/Snail signaling in bladder cancer cells. Gene 2019; 710:91-97. [PMID: 31002892 DOI: 10.1016/j.gene.2019.04.039] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 03/24/2019] [Accepted: 04/15/2019] [Indexed: 12/26/2022]
Abstract
BACKGROUND Chronic inflammatory microenvironment has been shown to play a key role in initiating tumorigenesis and facilitating malignant progression. Primary tumors surrounded with and infiltrated by tumor-associated macrophages (TAMs) significantly promote the epithelial-to-mesenchymal transition (EMT) and distant metastasis in urothelial bladder cancer. METHODS In this study, we aimed to explore the potential of targeting TAMs for the treatment of malignant bladder cancer. RESULTS First, we found a higher number of TAMs, CD68 (pan-macrophage marker), and clever-1 (M2 macrophage marker) was associated with a higher pT category and grade in a cohort of 108 patients. In vitro assays showed that the co-culture of TAMs promoted the metastatic potential in HTB-1 and T24 by up-regulating EMT markers including Snail, VEGF and Vimentin, as well as oncogenic markers such as β-catenin and NF-κB. More importantly, M2 co-cultured HTB-1 and T24 showed an increased level of metastatic microRNA, miR-30. Silencing of miR-30 resulted in the reduced metastatic potential, migration/invasion, in association with the decreased expression of Twist1 and Vimentin. The addition of BAY11-7082 into the TAM/cancer co-culture system significantly reduced the M2 phenotype and tumorigenic properties. Coincidentally, miR-30a level was significantly lowered in the presence of BAY11-7082. CONCLUSION Our study demonstrated that AMs promoted metastatic potential of bladder cancer cells via promoting EMT through the increase of miR-30a. BAY11-7082 treatment suppressed both oncogenic and metastatic potential in bladder cancer cells while preventing the M2 polarization of TAMs.
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Affiliation(s)
- Qi Zhang
- Department of Urology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China; Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Hangzhou 310014, China
| | - Zujie Mao
- Department of Urology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - Juan Sun
- Department of Ultrasonography, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China.
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Chen Y, Bi L, Luo H, Jiang Y, Chen F, Wang Y, Wei G, Chen W. Water extract of ginseng and astragalus regulates macrophage polarization and synergistically enhances DDP's anticancer effect. J Ethnopharmacol 2019; 232:11-20. [PMID: 30529424 DOI: 10.1016/j.jep.2018.12.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 12/03/2018] [Accepted: 12/04/2018] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In traditional Chinese medicine, supplementing Qi and strengthening body resistance are an important principle of anticancer treatment. Panax ginseng C.A.Mey. (ginseng) and Astragalus membranaceus Bunge (astragalus) are the representative herbs for this therapeutic principle. AIM OF THE STUDY This study aims to explore the effect of the water extract of ginseng and astragalus (WEGA) on regulating macrophage polarization and mediating anticancer in the tumor microenvironment. MATERIALS AND METHODS A549 cells were cultured in tumor-associated macrophage (TAM) supernatant with various concentrations of WEGA (0, 5, 10, 20 mg/mL). A549 cell proliferation was determined through methyl thiazole tetrazolium (MTT) assay and real-time cell analysis (RTCA), respectively. In vivo experiments were performed with a Lewis lung cancer (LLC) xenograft mouse model. Forty-eight mice were divided into six groups and treated with saline, WEGA, or cis-diamine dichloro platinum (DDP) with dosage of WEGA (0, 30, 60, 120 mg/kg body weight/day). The different groups were administered with drugs via oral or intraperitoneal injection once a day for 21 consecutive days. Tumor inhibition rate, spleen index, thymus index, cytokine, protein, and mRNA expression levels were detected in mice. RESULTS In a co-culture system, WEGA remarkably inhibited A549 cell proliferation, promoted the expression of M1 macrophage markers and inhibited M2 TAMs markers. Therefore, WEGA affected the biological behavior of cancer cells by regulating the expression of some markers relevant to macrophage polarization. In addition, the group of WEGA and DDP chemotherapy effectively inhibited the transplanted tumor growth in mice and improved weight loss and immunosuppressive with the cisplatin inducing. CONCLUSIONS This study provides mechanistic insights into the anticancer effect of WEGA through the regulation of macrophage polarization and highlights that WEGA could be a novel option for integrative cancer therapies.
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Affiliation(s)
- Yingna Chen
- School of Preclinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Lei Bi
- School of Preclinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| | - Huijuan Luo
- School of Preclinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yucui Jiang
- School of Preclinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Feiyan Chen
- School of Preclinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yunshan Wang
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan 250033, China
| | - Guangwei Wei
- Department of Human Anatomy and Key Laboratory of Experimental Teratology, Ministry of Education, Shandong University School of Medicine, Jinan 250012, China
| | - Weiping Chen
- School of Preclinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China.
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Maeda A, Digifico E, Andon FT, Mantovani A, Allavena P. Poly(I:C) stimulation is superior than Imiquimod to induce the antitumoral functional profile of tumor-conditioned macrophages. Eur J Immunol 2019; 49:801-811. [PMID: 30779113 PMCID: PMC6563448 DOI: 10.1002/eji.201847888] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 01/09/2019] [Accepted: 02/12/2019] [Indexed: 12/14/2022]
Abstract
Macrophage plasticity is the ability of mononuclear phagocytes to change phenotype, function, and genetic reprogramming upon encounter of specific local stimuli. In the tumor microenvironment, Tumor-Associated Macrophages (TAMs) acquire an immune-suppressive and tumor-promoting phenotype. With the aim to re-educate TAMs to antitumor effectors, in this study, we used two immunestimulatory compounds: the TLR7 agonist Imiquimod (IMQ) and the TLR3 agonist Poly(I:C). To better mimic in vitro the response of TAMs, we used Tumor-Conditioned Macrophages (TC-Mϕ) differentiated in the presence of tumor cell supernatants. Our results show that TC-Mϕ respond differently from conventional M2-polarized macrophages. Upon stimulation with IMQ, TC-Mϕ did not upregulate major histocompatibility complex (MHC II) molecules and unexpectedly expressed increased CD206. With both compounds, TC-Mϕ produced higher levels of inflammatory cytokines than M2 macrophages. IMQ and Poly(I:C) differed in the types of regulated genes and secreted mediators. Reflecting their signaling pathways, only IMQ significantly induced IL-1β and IL-6, while only Poly(I:C) stimulated CXCL10, and both upregulated CCL5. Of note, using a novel cytotoxicity assay, Poly(I:C), but not IMQ, was effective in triggering the cytotoxic activity of TC-Mϕ against cancer cells. Overall, the results demonstrate that Poly(I:C) stimulation of TC-Mϕ is superior than IMQ in terms of macrophage re-education toward antitumor effectors.
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Affiliation(s)
- Akihiro Maeda
- Humanitas Clinical and Research Center IRCCS, Department of Innate Immunity and Inflammation, via Manzoni 56, 20089, Rozzano, Milan, Italy
| | | | - Fernando T Andon
- Humanitas Clinical and Research Center IRCCS, Department of Innate Immunity and Inflammation, via Manzoni 56, 20089, Rozzano, Milan, Italy
| | - Alberto Mantovani
- Humanitas Clinical and Research Center IRCCS, Department of Innate Immunity and Inflammation, via Manzoni 56, 20089, Rozzano, Milan, Italy.,Humanitas University, Via A. Manzoni 113, 20089, Rozzano, Milan, Italy
| | - Paola Allavena
- Humanitas Clinical and Research Center IRCCS, Department of Innate Immunity and Inflammation, via Manzoni 56, 20089, Rozzano, Milan, Italy
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Abstract
Characterization of individual cell populations from the tumor microenvironment is critical to understand their functional contribution to tumor progression. Magnetic bead enrichment and fluorescence-activated cell sorting (FACS) allow for the isolation of specific cell types that can be used in downstream applications, including in vitro and in vivo functional studies and molecular profiling. In this chapter, we describe the process of isolation of tumor-associated macrophages (TAMs) from primary murine breast tumors subsequent to therapeutic or experimental intervention. Additionally, we further detail how to analyze their ability to support tumor cell growth by co-injecting isolated TAMs with tumor cells orthotopically into the mammary gland of immune-deficient hosts, and monitoring tumor progression by live imaging and caliper measurement.
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Affiliation(s)
- Nicholas M Clark
- Department of Pathology, Integrative Life Sciences Graduate Program, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Paula D Bos
- Department of Pathology, Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, VA, USA.
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Evrard D, Szturz P, Tijeras-Raballand A, Astorgues-Xerri L, Abitbol C, Paradis V, Raymond E, Albert S, Barry B, Faivre S. Macrophages in the microenvironment of head and neck cancer: potential targets for cancer therapy. Oral Oncol 2018; 88:29-38. [PMID: 30616794 DOI: 10.1016/j.oraloncology.2018.10.040] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 10/04/2018] [Accepted: 10/30/2018] [Indexed: 12/14/2022]
Abstract
The microenvironment of solid tumors has become a promising target for future therapies modulating immune cells. Patients with advanced head and neck cancer, which still portends a poor outcome, are particularly in need of innovative approaches. In oral squamous cell carcinoma, high density of tumor-associated macrophages (TAMs) appears consistently associated with poor prognosis, whereas data are currently limited for other head and neck sites. Several approaches to block TAMs have been investigated, including TAMs inactivation by means of the colony stimulating factor 1 (CSF-1)/CSF-1 receptor (CSF-1R) inhibitors or strategies to reprogram TAMs from M2 protumoral phenotype toward M1 antitumoral phenotype. This review focuses on both prognostic and therapeutic aspects related to TAMs in head and neck carcinomas.
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Affiliation(s)
- Diane Evrard
- Head and Neck Surgery Department, Hôpital Bichat, Paris, France
| | - Petr Szturz
- Oncology Department, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | | | | | - Chloé Abitbol
- Head and Neck Surgery Department, Hôpital Bichat, Paris, France
| | | | - Eric Raymond
- Medical Oncology Department, Groupe Hospitalier Paris---St Joseph, Paris, France
| | | | - Béatrix Barry
- Head and Neck Surgery Department, Hôpital Bichat, Paris, France
| | - Sandrine Faivre
- Medical Oncology Department, Hôpitaux Universitaires Paris Nord Val de Seine (HUPVNS) & Université Paris 7, Paris, France.
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Zhou TY, Zhou YL, Qian MJ, Fang YZ, Ye S, Xin WX, Yang XC, Wu HH. Interleukin-6 induced by YAP in hepatocellular carcinoma cells recruits tumor-associated macrophages. J Pharmacol Sci 2018; 138:89-95. [PMID: 30340922 DOI: 10.1016/j.jphs.2018.07.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 06/15/2018] [Accepted: 07/05/2018] [Indexed: 02/07/2023] Open
Abstract
Tumor-associated macrophages (TAMs) has been regarded as the most prominent component in tumor microenvironment. The correlation between TAM density and poor prognosis in Hepatocellular carcinoma (HCC) patients suggests a supportive role for TAMs in tumor progression. Here we employed a co-culture system to interrogate the molecular link between Yes-Associated Protein (YAP) and TAMs chemotaxis in HCC cells. We found that YAP activation was critical for the recruitment of TAMs towards HCC cells. Furthermore, cytokine array and quantitative RT-PCR analyses showed that IL-6 secreted by YAP-activated HCC cells might induce the TAMs recruitment. Interrupting YAP function by statins, the inhibitors of hydroxymethylglutaryl-CoA reductase, could robustly suppress the chemotaxis of TAMs. Together with our findings that the expression levels ofIL-6inhumanHCC tumors were highly correlated with the prognosis of HCC patients, the current study highlight the possibility of improving HCC treatment by targeting YAP-IL-6 mediated TAMs recruitment.
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Affiliation(s)
- Tian-Yi Zhou
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yu-Lu Zhou
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Mei-Jia Qian
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yi-Zheng Fang
- Hangzhou No. 14 Middle School, Hangzhou 310006, China
| | - Song Ye
- Clinical of Pharmacy, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Wen-Xiu Xin
- Division of Hepatobiliary Pancreatic Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Xiao-Chun Yang
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Hong-Hai Wu
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.
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Lee S, Lee E, Ko E, Ham M, Lee HM, Kim ES, Koh M, Lim HK, Jung J, Park SY, Moon A. Tumor-associated macrophages secrete CCL2 and induce the invasive phenotype of human breast epithelial cells through upregulation of ERO1-α and MMP-9. Cancer Lett 2018; 437:25-34. [PMID: 30165193 DOI: 10.1016/j.canlet.2018.08.025] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 07/25/2018] [Accepted: 08/21/2018] [Indexed: 12/19/2022]
Abstract
Tumor-associated macrophages (TAMs) are major components of tumor microenvironment that promote invasion and metastasis of cancer cells. In this study, we investigated the effect of TAMs on phenotypic conversion of non-neoplastic MCF10A human breast epithelial cells using an indirect co-culture system. Co-culture with TAMs induced epithelial-to-mesenchymal transition, invasive phenotype, and MMP-9 upregulation in MCF10A cells. Comparative proteomic analysis revealed that endoplasmic reticulum oxidoreductase (ERO)1-α was increased in MCF10A cells co-cultured with TAMs compared to that in mono-cultured cells. ERO1-α was crucial for TAMs-induced invasive phenotype and MMP-9 upregulation involving transcription factors c-fos and c-Jun. Cytokine array analysis showed that levels of interleukin (IL)-6, C-X-C motif ligand (CXCL)1, C-C motif ligand (CCL)2, growth-regulated protein (GRO), IL-8, and granulocyte-macrophage colony-stimulating factor (GM-CSF) were increased in conditioned media of co-cultured cells. Among these cytokines increased in conditioned media of co-cultured cells, CCL2 was secreted from TAMs, leading to induction of ERO1-α, MMP-9 upregulation, and invasiveness in MCF10A cells. Our findings elucidated a molecular mechanism underlying the aggressive phenotypic change of non-neoplastic breast cells by co-culture with TAMs, providing useful information for prevention or treatment of recurrent breast cancer.
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Affiliation(s)
- Seungeun Lee
- Duksung Innovative Drug Center, College of Pharmacy, Duksung Women's University, Seoul, South Korea
| | - Eunhye Lee
- Duksung Innovative Drug Center, College of Pharmacy, Duksung Women's University, Seoul, South Korea
| | - EunYi Ko
- Duksung Innovative Drug Center, College of Pharmacy, Duksung Women's University, Seoul, South Korea
| | - Mina Ham
- Duksung Innovative Drug Center, College of Pharmacy, Duksung Women's University, Seoul, South Korea
| | - Hye Min Lee
- Duksung Innovative Drug Center, College of Pharmacy, Duksung Women's University, Seoul, South Korea
| | - Eun-Sook Kim
- Duksung Innovative Drug Center, College of Pharmacy, Duksung Women's University, Seoul, South Korea
| | - Minsoo Koh
- Duksung Innovative Drug Center, College of Pharmacy, Duksung Women's University, Seoul, South Korea
| | - Hyun Kyung Lim
- Duksung Innovative Drug Center, College of Pharmacy, Duksung Women's University, Seoul, South Korea
| | - Joohee Jung
- Duksung Innovative Drug Center, College of Pharmacy, Duksung Women's University, Seoul, South Korea
| | - So Yeon Park
- Department of Pathology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Aree Moon
- Duksung Innovative Drug Center, College of Pharmacy, Duksung Women's University, Seoul, South Korea.
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Abstract
The fact that various immune cells, including macrophages, can be found in tumor tissues has long been known. With the introduction of concept that macrophages differentiate into a classically or alternatively activated phenotype, the role of tumor-associated macrophages (TAMs) is now beginning to be elucidated. TAMs act as "protumoral macrophages", contributing to disease progression. As the relationship between TAMs and malignant tumors becomes clearer, TAMs are beginning to be seen as potential therapeutic targets in these cases. In this review, we will discuss how TAMs can be used as therapeutic targets of cancer in clinics.
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Affiliation(s)
- Li Yang
- Biotherapy Center and Cancer Center, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, Henan Province 450052 China
| | - Yi Zhang
- Biotherapy Center and Cancer Center, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, Henan Province 450052 China.,School of Life Sciences, Zhengzhou University, No.100 Kexue Road, Zhengzhou, Henan Province 450001 China
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Abstract
The fact that various immune cells, including macrophages, can be found in tumor tissues has long been known. With the introduction of concept that macrophages differentiate into a classically or alternatively activated phenotype, the role of tumor-associated macrophages (TAMs) is now beginning to be elucidated. TAMs act as “protumoral macrophages,” contributing to disease progression. TAMs can promote initiation and metastasis of tumor cells, inhibit antitumor immune responses mediated by T cells, and stimulate tumor angiogenesis and subsequently tumor progression. As the relationship between TAMs and malignant tumors becomes clearer, TAMs are beginning to be seen as potential biomarkers for diagnosis and prognosis of cancers, as well as therapeutic targets in these cases. In this review, we will discuss the origin, polarization, and role of TAMs in human malignant tumors, as well as how TAMs can be used as diagnostic and prognostic biomarkers and therapeutic targets of cancer in clinics.
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Affiliation(s)
- Li Yang
- Biotherapy Center, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, Henan Province, China.,Cancer Center, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, Henan Province, China
| | - Yi Zhang
- Biotherapy Center, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, Henan Province, China. .,Cancer Center, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, Henan Province, China. .,School of Life Science, Zhengzhou University, No.100 Kexue Road, Zhengzhou, 450001, Henan Province, China.
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Zhang WJ, Zhou ZH, Guo M, Yang LQ, Xu YY, Pang TH, Gao ST, Xu XY, Sun Q, Feng M, Wang H, Lu CL, Wu GZ, Guan WX, Xu GF. High Infiltration of Polarized CD163 + Tumor-Associated Macrophages Correlates with Aberrant Expressions of CSCs Markers, and Predicts Prognosis in Patients with Recurrent Gastric Cancer. J Cancer 2017; 8:363-370. [PMID: 28261336 PMCID: PMC5332886 DOI: 10.7150/jca.16730] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 10/17/2016] [Indexed: 01/09/2023] Open
Abstract
Background: As the most predominant tumor-infiltrating immune cells, tumor-associated macrophages (TAMs) are associated with poor outcome in multiple solid cancers and play important roles in cancer progression. Cancer stem cells (CSCs) may account for metastasis and recurrence after cancer therapy. However, the association between TAMs and CSCs is not clarified in gastric cancer (GC). The aim of the present study was to evaluate the effects of TAMs on CSCs in GC and find out the risk factors to predict recurrence and prognosis. Material and methods: This study included consecutive 236 patients with histologically confirmed primary GC. TAMs marker CD163 and CSCs-related proteins were detected by immunohistochemistry (IHC) in GC tissues and their prognostic values were all investigated. Results: High expression of CD163+ TAMs was found in patents with aggressive characteristics, especially for patents with recurrence. There existed a significant correlation between high expression of CD163 and CSCs-related markers in GC tissues. In patients with recurrence, high-expression of CD163 TAMs was an independent worse prognostic factor. Conclusion: High infiltration of TAMs was related to aggressive behavior, associated with aberrant expression of CSC markers, and an independent worse prognostic factor in GC. Targeting TAMs may be a potential treatment strategy for GC, including patients with recurrence.
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Affiliation(s)
- Wei-Jie Zhang
- Department of General Surgery, Drum Tower Clinical College of Nanjing Medical University, Nanjing, Jiangsu Province, China;; Department of General Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China
| | - Zhi-Hua Zhou
- Department of Pathology, 101th Hospital of PLA, Wuxi, Jiangsu Providence, China
| | - Ming Guo
- Department of Gastroenterology, People' s Hospital of Anji, Huzhou, Zhejiang Province, China
| | - Liu-Qing Yang
- Department of Gastroenterology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China
| | - Yuan-Yuan Xu
- Department of Gastroenterology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China
| | - Tao-Hong Pang
- Department of Gastroenterology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China
| | - Shan-Ting Gao
- Department of General Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China
| | - Xin-Yun Xu
- Department of Pathology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China
| | - Qi Sun
- Department of Pathology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China
| | - Min Feng
- Department of General Surgery, Drum Tower Clinical College of Nanjing Medical University, Nanjing, Jiangsu Province, China;; Department of General Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China
| | - Hao Wang
- Department of General Surgery, Drum Tower Clinical College of Nanjing Medical University, Nanjing, Jiangsu Province, China;; Department of General Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China
| | - Chun-Lei Lu
- Department of General Surgery, 101th Hospital of PLA, Wuxi, Jiangsu Province, China
| | - Guo-Zhong Wu
- Department of General Surgery, 101th Hospital of PLA, Wuxi, Jiangsu Province, China
| | - Wen-Xian Guan
- Department of General Surgery, Drum Tower Clinical College of Nanjing Medical University, Nanjing, Jiangsu Province, China;; Department of General Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China
| | - Gui-Fang Xu
- Department of Gastroenterology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, China
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Stapleton S, Jaffray D, Milosevic M. Radiation effects on the tumor microenvironment: Implications for nanomedicine delivery. Adv Drug Deliv Rev 2017; 109:119-130. [PMID: 27262923 DOI: 10.1016/j.addr.2016.05.021] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 04/22/2016] [Accepted: 05/24/2016] [Indexed: 01/24/2023]
Abstract
The tumor microenvironment has an important influence on cancer biological and clinical behavior and radiation treatment (RT) response. However, RT also influences the tumor microenvironment in a complex and dynamic manner that can either reinforce or inhibit this response and the likelihood of long-term disease control in patients. It is increasingly evident that the interplay between RT and the tumor microenvironment can be exploited to enhance the accumulation and intra-tumoral distribution of nanoparticles, mediated by changes to the vasculature and stroma with secondary effects on hypoxia, interstitial fluid pressure (IFP), solid tissue pressure (STP), and the recruitment and activation of bone marrow-derived myeloid cells (BMDCs). The use of RT to modulate nanoparticle drug delivery offers an exciting opportunity to improve antitumor efficacy. This review explores the interplay between RT and the tumor microenvironment, and the integrated effects on nanoparticle drug delivery and efficacy.
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Affiliation(s)
- Shawn Stapleton
- Radiation Medicine Program, Princess Margaret Cancer Centre and University Health Network, Toronto, ON, Canada
| | - David Jaffray
- Radiation Medicine Program, Princess Margaret Cancer Centre and University Health Network, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | - Michael Milosevic
- Radiation Medicine Program, Princess Margaret Cancer Centre and University Health Network, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada.
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Ok Atılgan A, Özdemir BH, Akçay EY, Ataol Demirkan Ö, Tekindal MA, Özkardeş H. Role of tumor-associated macrophages in the Hexim1 and TGFβ/SMAD pathway, and their influence on progression of prostatic adenocarcinoma. Pathol Res Pract 2015; 212:83-92. [PMID: 26608417 DOI: 10.1016/j.prp.2015.10.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 09/22/2015] [Accepted: 10/26/2015] [Indexed: 12/22/2022]
Abstract
BACKGROUND Hexamethylene bisacetamide-inducible protein 1 (Hexim1) regulates transforming growth factor-β (TGFβ) activity and turnover of SMAD proteins in a cyclin-dependent kinase 9-dependent way. It does so specifically through inhibiting function of this enzyme and by inhibiting the transcriptional activity of positive transcription elongation factor b (P-TEFb). Tumor-associated macrophages (TAMs) play a role in the progression of prostate adenocarcinomas. We investigated the clinicopathological significance of Hexim1, TGFβ, SMAD2, and SMAD7 expression in prostate adenocarcinoma cells, and assessed associations between TAMs density and these proteins. METHODS The cases of 100 patients diagnosed with prostate acinar adenocarcinoma who had undergone radical prostatectomy were retrospectively examined. Each was reviewed for Gleason score, cancer stage, and specific histopathological features. Original slides were re-examined, and new slides were prepared and immunostained with Hexim1, TGFβ, SMAD2, SMAD7 and CD68. RESULTS Hexim1 expression was positively correlated with Gleason score, cancer stage, lymphovascular invasion, perineural invasion, extracapsular extension, and positive surgical margin. TAMs density was positively correlated with Gleason score, cancer stage, perineural invasion, extracapsular extension, and positive surgical margin. TAMs density was positively correlated with Hexim1 expression and TGFβ expression. More advanced cancer stage, lymphovascular invasion, perineural invasion, and extracapsular extension were correlated with strong Hexim1 expression, strong SMAD2 expression, and mild SMAD7 expression, respectively. Strong Hexim1 expression, strong TGFβ expression, and mild SMAD7 expression were associated with higher Gleason score. Strong Hexim1 expression was correlated with strong TGFβ expression and mild SMAD7 expression. Strong Hexim1 expression, strong SMAD2 expression, and mild expression of SMAD7 were associated with disease progression. Strong SMAD2 expression was associated with shorter disease-free survival. CONCLUSION The results suggest that greater TAMs density, strong Hexim1 expression, strong SMAD2 expression, and mild SMAD7 expression play important roles in the progression of prostate adenocarcinoma. Further investigation of these proteins will help facilitate the definitive prognosis of prostate adenocarcinomas. Ultimately, these proteins may be therapeutic targets for patients with prostate cancer.
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Affiliation(s)
- Alev Ok Atılgan
- Baskent University Faculty of Medicine, Department of Pathology, 79.sok. No: 7/4 Bahçelievler, 06490 Ankara, Turkey.
| | - B Handan Özdemir
- Baskent University Faculty of Medicine, Department of Pathology, 79.sok. No: 7/4 Bahçelievler, 06490 Ankara, Turkey.
| | - Eda Yılmaz Akçay
- Baskent University Faculty of Medicine, Department of Pathology, 79.sok. No: 7/4 Bahçelievler, 06490 Ankara, Turkey.
| | - Özlem Ataol Demirkan
- Baskent University Faculty of Medicine, Department of Pathology, 79.sok. No: 7/4 Bahçelievler, 06490 Ankara, Turkey.
| | - M Agah Tekindal
- Baskent University Faculty of Medicine, Department of Biostatistics, Bağlıca Kampüsü Eskişehir Yolu 20.km Bağlıca, 06810 Ankara, Turkey.
| | - Hakan Özkardeş
- Baskent University Faculty of Medicine, Department of Urology, 79.sok. No: 7/4 Bahçelievler, 06490 Ankara, Turkey.
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Wang X, Li X, Zhang X, Zang L, Yang H, Zhao W, Zhao H, Li Q, Xia B, Yu Y, Wang Y, Zhao Z, Zhang Y. Toll-like receptor 4-induced inflammatory responses contribute to the tumor-associated macrophages formation and infiltration in patients with diffuse large B-cell lymphoma. Ann Diagn Pathol 2015; 19:232-8. [PMID: 26071054 DOI: 10.1016/j.anndiagpath.2015.04.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 03/27/2015] [Accepted: 04/17/2015] [Indexed: 12/19/2022]
Abstract
To evaluate the expression of tumor-associated macrophages (TAMs) and Toll-like receptor 4 (TLR4) in diffuse large B-cell lymphoma (DLBCL) and their correlation with patient clinical characteristics, we detected using immunohistochemistry in 81 specimens of patients with DLBCL. The correlation between protein expression levels and clinical parameters, as well as the association between CD68 and TLR4 were analyzed. The number of CD68 TAMs was closely related to β2-microglobulin (P = .028 and P < .05), whereas there was no significant correlation between the number of CD68 TAMs and other clinical factors. Toll-like receptor 4 was related to tumor size and peripheral blood lymphocyte to monocyte ratio. The Spearman correlation coefficient indicated a significant positive correlation between CD68 TAMs and TLR4 expression (r = 0.240; P = .038, P = .05). These results, on one hand, indicated that TLR4-induced inflammatory responses may affect TAM infiltration and accumulation, and that TAMs and TLR4 may interact to play important roles in DLBCL microenvironment regulating the tumor growth, but, on the other hand demonstrated that both of TAMs and TLR4 had not only one side on DLBCL growth.
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Affiliation(s)
- Xiaofang Wang
- Department of Hematology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, PR China.
| | - Xiangli Li
- Department of Hematology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, PR China
| | - Xiaoying Zhang
- Department of Hematology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, PR China
| | - Li Zang
- Department of Hematology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, PR China
| | - Hongliang Yang
- Department of Hematology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, PR China
| | - Weipeng Zhao
- Department of Hematology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, PR China
| | - Haifeng Zhao
- Department of Hematology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, PR China
| | - Qian Li
- Department of Hematology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, PR China
| | - Bing Xia
- Department of Hematology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, PR China
| | - Yong Yu
- Department of Hematology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, PR China
| | - Yafei Wang
- Department of Hematology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, PR China
| | - Zhigang Zhao
- Department of Hematology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, PR China
| | - Yizhuo Zhang
- Department of Hematology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, PR China
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Ke X, Wu M, Lou J, Zhang S, Huang P, Sun R, Huang L, Xie E, Wang F, Gu B. Activation of Toll-like receptors signaling in non-small cell lung cancer cell line induced by tumor-associated macrophages. Chin J Cancer Res 2015; 27:181-9. [PMID: 25937780 DOI: 10.3978/j.issn.1000-9604.2015.03.07] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 03/03/2015] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Inflammation is often linked with the progress and poor outcome of lung cancer. The understanding of the relationship between tumor-associated macrophages (TAMs) and lung cancer cells involves in the underlying mechanism of inflammatory cytokine production. Toll-like receptors (TLRs) are engaged in promoting the production of pro-inflammatory cytokines and play an important role in tumor immunology. METHODS To investigate the mechanisms by which TAMs influence the production of pro-inflammatory cytokines in lung cancer cells, we established an in vitro coculture system using TAMs and human non-small cell lung cancer (NSCLC) cell line SPC-A1. Levels of interleukin (IL)-1β, IL-6 and IL-8 in SPC-A1 were evaluated by RT-PCR and cytometric bead array assay after being cocultured with TAMs. Expression changes of TLRs and TLRs signaling pathway proteins in SPC-A1 were further confirmed by RT-PCR and western blot. The level changes of IL-1β, IL-6 and IL-8 in SPC-A1 were also detected after the stimulation of TLRs agonists. RESULTS We found that the phenotype markers of TAMs were highly expressed after stimulating human monocyte cell line THP-1 by phorbol-12-myristate-13-acetate (PMA). Higher mRNA and supernate secretion levels of IL-1β, IL-6 and IL-8 were detected in SPC-A1 after being cocultured with TAMs. We also found that TLR1, TLR6 and TLR7 were up-regulated in SPC-A1 in the coculture system with TAMs. Meanwhile, TLRs signaling pathway proteins were also significantly activated. Moreover, pre-treatment with agonist ligands for TLR1, TLR6 and TLR7 could dramatically promote inductions of IL-1β, IL-6 and IL-8. CONCLUSIONS These findings demonstrated that TAMs may enhance IL-1β, IL-6 and IL-8 expressions via TLRs signaling pathway. We conclude that TAMs contribute to maintain the inflammation microenvironment and ultimately promote the development and progression of lung cancer.
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Affiliation(s)
- Xing Ke
- 1 Department of Laboratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical Department of Laboratory Medicine, Nanjing 210029, China
| | - Meng Wu
- 1 Department of Laboratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical Department of Laboratory Medicine, Nanjing 210029, China
| | - Jianfang Lou
- 1 Department of Laboratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical Department of Laboratory Medicine, Nanjing 210029, China
| | - Shuping Zhang
- 1 Department of Laboratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical Department of Laboratory Medicine, Nanjing 210029, China
| | - Peijun Huang
- 1 Department of Laboratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical Department of Laboratory Medicine, Nanjing 210029, China
| | - Ruihong Sun
- 1 Department of Laboratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical Department of Laboratory Medicine, Nanjing 210029, China
| | - Lei Huang
- 1 Department of Laboratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical Department of Laboratory Medicine, Nanjing 210029, China
| | - Erfu Xie
- 1 Department of Laboratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical Department of Laboratory Medicine, Nanjing 210029, China
| | - Fang Wang
- 1 Department of Laboratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical Department of Laboratory Medicine, Nanjing 210029, China
| | - Bing Gu
- 1 Department of Laboratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; 2 National Key Clinical Department of Laboratory Medicine, Nanjing 210029, China
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