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Aayush A, Darji S, Estes KM, Yeh E, Thompson DH. Development of an Elastin-like Polypeptide-Based Nucleic Acid Delivery System Targeted to EGFR+ Bladder Cancer Cells Using a Layer-by-Layer Approach. Biomacromolecules 2024. [PMID: 39185801 DOI: 10.1021/acs.biomac.4c00165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Abstract
Nucleic acid (NA)-based therapies are revolutionizing biomedical research through their ability to control cellular functions at the genetic level. This work demonstrates a versatile elastin-like polypeptide (ELP) carrier system using a layer-by-layer (LbL) formulation approach that delivers NA cargos ranging in size from siRNA to plasmids. The components of the system can be reconfigured to modulate the biochemical and biophysical characteristics of the carrier for engaging the unique features of the biological target. We show the physical characterization and biological performance of LbL ELP nucleic acid nanoparticles (LENNs) in murine and human bladder tumor cell lines. Targeting bladder tumors is difficult owing to the constant influx of urine into the bladder, leading to low contact times (typically <2 h) for therapeutic agents delivered via intravesical instillation. LENN complexes bind to bladder tumor cells within 30 min and become rapidly internalized to release their NA cargo within 60 min. Our data show that a readily adaptable NA-delivery system has been created that is flexible in its targeting ability, cargo size, and disassembly kinetics. This approach provides an alternative path to either lipid nanoparticle formulations that suffer from inefficiency and physicochemical instability or viral vectors that are plagued by manufacturing and immune rejection challenges. This agile ELP-based nanocarrier provides an alternative route for nucleic acid delivery using a biomanufacturable, biodegradable, biocompatible, and highly tunable vehicle capable of targeting cells via engagement with overexpressed cell surface receptors.
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Affiliation(s)
- Aayush Aayush
- Department of Chemistry & Purdue Institute for Cancer Research, Purdue University, Bindley Bioscience Center, West Lafayette, Indiana 47907, United States
| | - Saloni Darji
- Department of Chemistry & Purdue Institute for Cancer Research, Purdue University, Bindley Bioscience Center, West Lafayette, Indiana 47907, United States
| | - Kiera M Estes
- Department of Chemistry & Purdue Institute for Cancer Research, Purdue University, Bindley Bioscience Center, West Lafayette, Indiana 47907, United States
| | - Emily Yeh
- Department of Chemistry & Purdue Institute for Cancer Research, Purdue University, Bindley Bioscience Center, West Lafayette, Indiana 47907, United States
| | - David H Thompson
- Department of Chemistry & Purdue Institute for Cancer Research, Purdue University, Bindley Bioscience Center, West Lafayette, Indiana 47907, United States
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Lee SJ, Lee SH, Koh A, Kim KW. EGF-conditioned M1 macrophages Convey reduced inflammation into corneal endothelial cells through exosomes. Heliyon 2024; 10:e26800. [PMID: 38434401 PMCID: PMC10906407 DOI: 10.1016/j.heliyon.2024.e26800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/20/2024] [Accepted: 02/20/2024] [Indexed: 03/05/2024] Open
Abstract
Epidermal Growth Factor (EGF), a protein pivotal in cell proliferation and survival, has recently shown promise in alleviating inflammation. This study investigates EGF's impact on M1 macrophages, exploring its potential for anti-inflammatory and anti-vasculogenic interactions with corneal endothelial cells (CECs). Polarized M1 macrophages treated with EGF exhibited a suppression of gene expressions related to inflammatory and vasculogenic signals. The anti-inflammatory effects of EGF were observed in co-culture systems with human CECs (HCECs), showcasing its ability to alter macrophage phenotypes. Exosomes derived from EGF-treated M1 macrophages demonstrated enriched proteomic profiles related to immune system regulation and inflammation inhibition. When applied as eye drops in murine corneas, EGF-conditioned M1 macrophage-derived exosomes effectively reduced inflammation and increased M2-related ARG1 expression. This study highlights EGF's potential in mitigating inflammation in M1 macrophages and its delivery through exosomes to cultured HCECs and murine corneas, suggesting a novel therapeutic avenue for ocular surface anti-inflammatory treatments.
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Affiliation(s)
- Soo Jin Lee
- Chung-Ang Ocular Surface Restoration via Immune-inflammation Alleviation (CORIA) Laboratory, Seoul, Republic of Korea
| | - Seung Hyeun Lee
- Department of Ophthalmology, Chung-Ang University College of Medicine, Chung-Ang University Hospital, Seoul, Republic of Korea
| | - Ahra Koh
- Chung-Ang Ocular Surface Restoration via Immune-inflammation Alleviation (CORIA) Laboratory, Seoul, Republic of Korea
- Chung-Ang University Graduate School, Republic of Korea
| | - Kyoung Woo Kim
- Chung-Ang Ocular Surface Restoration via Immune-inflammation Alleviation (CORIA) Laboratory, Seoul, Republic of Korea
- Department of Ophthalmology, Chung-Ang University College of Medicine, Chung-Ang University Hospital, Seoul, Republic of Korea
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3
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Klaver D, Gander H, Frena B, Amato M, Thurnher M. Crosstalk between purinergic receptor P2Y 11 and chemokine receptor CXCR7 is regulated by CXCR4 in human macrophages. Cell Mol Life Sci 2024; 81:132. [PMID: 38472446 DOI: 10.1007/s00018-024-05158-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/22/2024] [Accepted: 02/05/2024] [Indexed: 03/14/2024]
Abstract
P2Y11 is a G protein-coupled ATP receptor that activates IL-1 receptor (IL-1R) in a cyclic AMP dependent manner. In human macrophages, P2Y11/IL-1R crosstalk with CCL20 as a prime target is controlled by phosphodiesterase 4 (PDE4), which mediates breakdown of cyclic AMP. Here, we used gene expression analysis to identify activation of CXCR4 and CXCR7 as a hallmark of P2Y11 signaling. We found that PDE4 inhibition with rolipram boosts P2Y11/IL-1R-induced upregulation of CXCR7 expression and CCL20 production in an epidermal growth factor receptor dependent manner. Using an astrocytoma cell line, naturally expressing CXCR7 but lacking CXCR4, P2Y11/IL-1R activation effectively induced and CXCR7 agonist TC14012 enhanced CCL20 production even in the absence of PDE4 inhibition. Moreover, CXCR7 depletion by RNA interference suppressed CCL20 production. In macrophages, the simultaneous activation of P2Y11 and CXCR7 by their respective agonists was sufficient to induce CCL20 production with no need of PDE4 inhibition, as CXCR7 activation increased its own and eliminated CXCR4 expression. Finally, analysis of multiple CCL chemokines in the macrophage secretome revealed that CXCR4 inactivation and CXCR7 activation selectively enhanced P2Y11/IL-1R-mediated secretion of CCL20. Altogether, our data establish CXCR7 as an integral component of the P2Y11/IL-1R-initiated signaling cascade and CXCR4-associated PDE4 as a regulatory checkpoint.
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Affiliation(s)
- Dominik Klaver
- Immunotherapy Unit, Department of Urology, Medical University of Innsbruck, Innrain 66a, Innsbruck, 6020, Austria
| | - Hubert Gander
- Immunotherapy Unit, Department of Urology, Medical University of Innsbruck, Innrain 66a, Innsbruck, 6020, Austria
| | - Beatrice Frena
- Immunotherapy Unit, Department of Urology, Medical University of Innsbruck, Innrain 66a, Innsbruck, 6020, Austria
| | - Marco Amato
- Central Institute for Blood Transfusion & Department of Immunology (ZIB), Tirol Kliniken GmbH, Innsbruck, Austria
| | - Martin Thurnher
- Immunotherapy Unit, Department of Urology, Medical University of Innsbruck, Innrain 66a, Innsbruck, 6020, Austria.
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4
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Liu M, Fan G, Liu H. Integrated bioinformatics and network pharmacology identifying the mechanisms and molecular targets of Guipi Decoction for treatment of comorbidity with depression and gastrointestinal disorders. Metab Brain Dis 2024; 39:183-197. [PMID: 37847347 DOI: 10.1007/s11011-023-01308-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 10/04/2023] [Indexed: 10/18/2023]
Abstract
BACKGROUND Guipi decoction (GPD) not only improves gastrointestinal (GI) function, but also depressive mood. The bioinformatics study aimed to reveal potential crosstalk genes and related pathways between depression and GI disorders. A network pharmacology approach was used to explore the molecular mechanisms and potential targets of GPD for the simultaneous treatment of depression comorbid GI disorders. METHODS Differentially expressed genes (DEGs) of major depressive disorder (MDD) were identified based on GSE98793 and GSE19738, and GI disorders-related genes were screened from the GeneCards database. Overlapping genes between MDD and GI disorders were obtained to identify potential crosstalk genes. Protein-protein interaction (PPI) network was constructed to screen for hub genes, signature genes were identified by LASSO regression analysis, and single sample gene set enrichment analysis (ssGSEA) was performed to analyze immune cell infiltration. In addition, based on the Traditional Chinese Medicine Systems Pharmacology (TCMSP) database, we screened the active ingredients and targets of GPD and identified the intersection targets of GPD with MDD and GI disorder-related genes, respectively. A "component-target" network was constructed using Cytoscape, the Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were performed. RESULTS The MDD-corrected dataset contained 2619 DEGs, and a total of 109 crosstalk genes were obtained. 14 hub genes were screened, namely SOX2, CRP, ACE, LEP, SHH, CDH2, CD34, TNF, EGF, BDNF, FN1, IL10, PPARG, and KIT. These genes were identified by LASSO regression analysis for 3 signature genes, including TNF, EGF, and IL10. Gamma.delta.T.cell was significantly positively correlated with all three signature genes, while Central.memory.CD4.T.cell and Central.memory.CD8.T.cell were significantly negatively correlated with EGF and TNF. GPD contained 134 active ingredients and 248 targets, with 41 and 87 relevant targets for the treatment of depression and GI disorders, respectively. EGF, PPARG, IL10 and CRP overlap with the hub genes of the disease. CONCLUSION We found that GPD may regulate inflammatory and oxidative stress responses through EGF, PPARG, IL10 and CRP targets, and then be involved in the treatment of both depression and GI disorders.
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Affiliation(s)
- Menglin Liu
- Tianjin University of Chinese Medicine, Tianjin, China
| | - Genhao Fan
- Tianjin University of Chinese Medicine, Tianjin, China
| | - Huayi Liu
- Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin, China.
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Okyere AD, Nayak TK, Patwa V, Teplitsky D, McEachern E, Carter RL, Xu H, Gao E, Zhou Y, Tilley DG. Myeloid cell-specific deletion of epidermal growth factor receptor aggravates acute cardiac injury. Clin Sci (Lond) 2023; 137:1513-1531. [PMID: 37728308 PMCID: PMC10758753 DOI: 10.1042/cs20230804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/08/2023] [Accepted: 09/19/2023] [Indexed: 09/21/2023]
Abstract
Myeloid cells, including macrophages, play important roles as first responders to cardiac injury and stress. Epidermal growth factor receptor (EGFR) has been identified as a mediator of macrophage responsiveness to select diseases, though its impact on cardiac function or remodeling following acute ischemic injury is unknown. We aimed to define the role of myeloid cell-specific EGFR in the regulation of cardiac function and remodeling following acute myocardial infarction (MI)-induced injury. Floxed EGFR mice were bred with homozygous LysM-Cre (LMC) transgenic mice to yield myeloid-specific EGFR knockout (mKO) mice. Via echocardiography, immunohistochemistry, RNA sequencing and flow cytometry, the impact of myeloid cell-specific EGFR deletion on cardiac structure and function was assessed at baseline and following injury. Compared with LMC controls, myeloid cell-specific EGFR deletion led to an increase in cardiomyocyte hypertrophy at baseline. Bulk RNASeq analysis of isolated cardiac Cd11b+ myeloid cells revealed substantial changes in mKO cell transcripts at baseline, particularly in relation to predicted decreases in neovascularization. In response to myocardial infarction, mKO mice experienced a hastened decline in cardiac function with isolated cardiac Cd11b+ myeloid cells expressing decreased levels of the pro-reparative mediators Vegfa and Il10, which coincided with enhanced cardiac hypertrophy and decreased capillary density. Overall, loss of EGFR qualitatively alters cardiac resident macrophages that promotes a low level of basal stress and a more rapid decrease in cardiac function along with worsened repair following acute ischemic injury.
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Affiliation(s)
- Ama D. Okyere
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
| | - Tapas K. Nayak
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
| | - Viren Patwa
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
| | - David Teplitsky
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
| | - Erin McEachern
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
| | - Rhonda L. Carter
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
| | - Heli Xu
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
| | - Erhe Gao
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
| | - Yan Zhou
- Biostatistics and Bioinformatics Facility, Fox Chase Cancer Center, Philadelphia, PA 19111, U.S.A
| | - Douglas G. Tilley
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, U.S.A
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Li M, Wang M, Wen Y, Zhang H, Zhao G, Gao Q. Signaling pathways in macrophages: molecular mechanisms and therapeutic targets. MedComm (Beijing) 2023; 4:e349. [PMID: 37706196 PMCID: PMC10495745 DOI: 10.1002/mco2.349] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/24/2023] [Accepted: 07/27/2023] [Indexed: 09/15/2023] Open
Abstract
Macrophages play diverse roles in development, homeostasis, and immunity. Accordingly, the dysfunction of macrophages is involved in the occurrence and progression of various diseases, such as coronavirus disease 2019 and atherosclerosis. The protective or pathogenic effect that macrophages exert in different conditions largely depends on their functional plasticity, which is regulated via signal transduction such as Janus kinase-signal transducer and activator of transcription, Wnt and Notch pathways, stimulated by environmental cues. Over the past few decades, the molecular mechanisms of signaling pathways in macrophages have been gradually elucidated, providing more alternative therapeutic targets for diseases treatment. Here, we provide an overview of the basic physiology of macrophages and expound the regulatory pathways within them. We also address the crucial role macrophages play in the pathogenesis of diseases, including autoimmune, neurodegenerative, metabolic, infectious diseases, and cancer, with a focus on advances in macrophage-targeted strategies exploring modulation of components and regulators of signaling pathways. Last, we discuss the challenges and possible solutions of macrophage-targeted therapy in clinical applications. We hope that this comprehensive review will provide directions for further research on therapeutic strategies targeting macrophage signaling pathways, which are promising to improve the efficacy of disease treatment.
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Affiliation(s)
- Ming Li
- Department of Gynecological OncologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- National Clinical Research Center for Obstetrics and GynecologyCancer Biology Research Center (Key Laboratory of the Ministry of Education)Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Mengjie Wang
- Department of Gynecological OncologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- National Clinical Research Center for Obstetrics and GynecologyCancer Biology Research Center (Key Laboratory of the Ministry of Education)Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Yuanjia Wen
- Department of Gynecological OncologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- National Clinical Research Center for Obstetrics and GynecologyCancer Biology Research Center (Key Laboratory of the Ministry of Education)Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Hongfei Zhang
- Department of Gynecological OncologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- National Clinical Research Center for Obstetrics and GynecologyCancer Biology Research Center (Key Laboratory of the Ministry of Education)Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Guang‐Nian Zhao
- Department of Gynecological OncologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- National Clinical Research Center for Obstetrics and GynecologyCancer Biology Research Center (Key Laboratory of the Ministry of Education)Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Qinglei Gao
- Department of Gynecological OncologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- National Clinical Research Center for Obstetrics and GynecologyCancer Biology Research Center (Key Laboratory of the Ministry of Education)Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
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7
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Li J, Sun J, Zeng Z, Liu Z, Ma M, Zheng Z, He Y, Kang W. Tumour-associated macrophages in gastric cancer: From function and mechanism to application. Clin Transl Med 2023; 13:e1386. [PMID: 37608500 PMCID: PMC10444973 DOI: 10.1002/ctm2.1386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 08/10/2023] [Accepted: 08/14/2023] [Indexed: 08/24/2023] Open
Abstract
BACKGROUND Gastric cancer (GC) is a malignant tumour, with high morbidity and mortality rates worldwide. The occurrence and development of GC is a complex process involving genetic changes in tumour cells and the influence of the surrounding tumour microenvironment (TME). Accumulative evidence shows that tumour-associated macrophages (TAMs) play a vital role in GC, acting as plentiful and active infiltrating inflammatory cells in the TME. MAIN BODY In this review, the different functions and mechanisms of TAMs in GC progression, including the conversion of phenotypic subtypes; promotion of tumour proliferation, invasion and migration; induction of chemoresistance; promotion of angiogenesis; modulation of immunosuppression; reprogramming of metabolism; and interaction with the microbial community are summarised. Although the role of TAMs in GC remains controversial in clinical settings, clarifying their significance in the treatment selection and prognostic prediction of GC could support optimising TAM-centred clinicaltherapy. CONCLUSION In summary, we reviewed the the phenotypic polarisation, function and molecular mechanism of TAMs and their potential applications in the treatment selection and prognostic prediction of GC.
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Affiliation(s)
- Jie Li
- Department of General SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingPeople's Republic of China
| | - Juan Sun
- Department of General SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingPeople's Republic of China
| | - Ziyang Zeng
- Department of General SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingPeople's Republic of China
| | - Zhen Liu
- Department of General SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingPeople's Republic of China
| | - Mingwei Ma
- Department of General SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingPeople's Republic of China
| | - Zicheng Zheng
- Department of General SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingPeople's Republic of China
| | - Yixuan He
- Department of General SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingPeople's Republic of China
| | - Weiming Kang
- Department of General SurgeryPeking Union Medical College HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingPeople's Republic of China
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Morato A, Accornero P, Hovey RC. ERBB Receptors and Their Ligands in the Developing Mammary Glands of Different Species: Fifteen Characters in Search of an Author. J Mammary Gland Biol Neoplasia 2023; 28:10. [PMID: 37219601 DOI: 10.1007/s10911-023-09538-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/26/2023] [Indexed: 05/24/2023] Open
Abstract
The ERBB tyrosine kinase receptors and their ligands belong to a complex family that has diverse biological effects and expression profiles in the developing mammary glands, where its members play an essential role in translating hormone signals into local effects. While our understanding of these processes stems mostly from mouse models, there is the potential for differences in how this family functions in the mammary glands of other species, particularly in light of their unique histomorphological features. Herein we review the postnatal distribution and function of ERBB receptors and their ligands in the mammary glands of rodents and humans, as well as for livestock and companion animals. Our analysis highlights the diverse biology for this family and its members across species, the regulation of their expression, and how their roles and functions might be modulated by varying stromal composition and hormone interactions. Given that ERBB receptors and their ligands have the potential to influence processes ranging from normal mammary development to diseased states such as cancer and/or mastitis, both in human and veterinary medicine, a more complete understanding of their biological functions should help to direct future research and the identification of new therapeutic targets.
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Affiliation(s)
- Alessia Morato
- Department of Animal Science, University of California, Davis, One Shields Avenue, Davis, CA, 95616, USA.
| | - Paolo Accornero
- Department of Veterinary Science, University of Turin, Largo Paolo Braccini 2, Grugliasco, TO, 10095, Italy
| | - Russell C Hovey
- Department of Animal Science, University of California, Davis, One Shields Avenue, Davis, CA, 95616, USA
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9
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Liu Y, Li C, Lu Y, Liu C, Yang W. Tumor microenvironment-mediated immune tolerance in development and treatment of gastric cancer. Front Immunol 2022; 13:1016817. [PMID: 36341377 PMCID: PMC9630479 DOI: 10.3389/fimmu.2022.1016817] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 10/07/2022] [Indexed: 11/24/2022] Open
Abstract
Tumor microenvironment is the general term for all non-cancer components and their metabolites in tumor tissue. These components include the extracellular matrix, fibroblasts, immune cells, and endothelial cells. In the early stages of tumors, the tumor microenvironment has a tumor suppressor function. As the tumor progresses, tumor immune tolerance is induced under the action of various factors, such that the tumor suppressor microenvironment is continuously transformed into a tumor-promoting microenvironment, which promotes tumor immune escape. Eventually, tumor cells manifest the characteristics of malignant proliferation, invasion, metastasis, and drug resistance. In recent years, stress effects of the extracellular matrix, metabolic and phenotypic changes of innate immune cells (such as neutrophils, mast cells), and adaptive immune cells in the tumor microenvironment have been revealed to mediate the emerging mechanisms of immune tolerance, providing us with a large number of emerging therapeutic targets to relieve tumor immune tolerance. Gastric cancer is one of the most common digestive tract malignancies worldwide, whose mortality rate remains high. According to latest guidelines, the first-line chemotherapy of advanced gastric cancer is the traditional platinum and fluorouracil therapy, while immunotherapy for gastric cancer is extremely limited, including only Human epidermal growth factor receptor 2 (HER-2) and programmed death ligand 1 (PD-L1) targeted drugs, whose benefits are limited. Clinical experiments confirmed that cytotoxic T-lymphocyte-associated protein 4 (CTLA-4), vascular endothelial growth factor receptor (VEGFR) and other targeted drugs alone or in combination with other drugs have limited efficacy in patients with advanced gastric cancer, far less than in lung cancer, colon cancer, and other tumors. The failure of immunotherapy is mainly related to the induction of immune tolerance in the tumor microenvironment of gastric cancer. Therefore, solving the immune tolerance of tumors is key to the success of gastric cancer immunotherapy. In this study, we summarize the latest mechanisms of various components of the tumor microenvironment in gastric cancer for inducing immune tolerance and promoting the formation of the malignant phenotype of gastric cancer, as well as the research progress of targeting the tumor microenvironment to overcome immune tolerance in the treatment of gastric cancer.
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Affiliation(s)
- Yuanda Liu
- Department of Endoscopy Center, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Changfeng Li
- Department of Endoscopy Center, China-Japan Union Hospital of Jilin University, Changchun, China
- *Correspondence: Changfeng Li, ; Wei Yang,
| | - Yaoping Lu
- Department of Immunology, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Chang Liu
- Department of Endoscopy Center, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Wei Yang
- Department of Immunology, College of Basic Medical Sciences, Jilin University, Changchun, China
- *Correspondence: Changfeng Li, ; Wei Yang,
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10
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Horwitz JK, Bin S, Fairchild RL, Keslar KS, Yi Z, Zhang W, Pavlov VI, Li Y, Madsen JC, Cravedi P, Heeger PS. Linking erythropoietin to regulatory T-cell-dependent allograft survival through myeloid cells. JCI Insight 2022; 7:158856. [PMID: 35389892 PMCID: PMC9220923 DOI: 10.1172/jci.insight.158856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 04/06/2022] [Indexed: 12/03/2022] Open
Abstract
Erythropoietin (EPO) has multiple nonerythropoietic functions, including immune modulation, but EPO’s effects in transplantation remain incompletely understood. We tested the mechanisms linking EPO administration to prolongation of murine heterotopic heart transplantation using WT and conditional EPO receptor–knockout (EPOR-knockout) mice as recipients. In WT controls, peritransplant administration of EPO synergized with CTLA4-Ig to prolong allograft survival (P < 0.001), reduce frequencies of donor-reactive effector CD8+ T cells in the spleen (P < 0.001) and in the graft (P < 0.05), and increase frequencies and total numbers of donor-reactive Tregs (P < 0.01 for each) versus CTLA4-Ig alone. Studies performed in conditional EPOR-knockout recipients showed that each of these differences required EPOR expression in myeloid cells but not in T cells. Analysis of mRNA isolated from spleen monocytes showed that EPO/EPOR ligation upregulated macrophage-expressed, antiinflammatory, regulatory, and pro-efferocytosis genes and downregulated selected proinflammatory genes. Taken together, the data support the conclusion that EPO promotes Treg-dependent murine cardiac allograft survival by crucially altering the phenotype and function of macrophages. Coupled with our previous documentation that EPO promotes Treg expansion in humans, the data support the need for testing the addition of EPO to costimulatory blockade-containing immunosuppression regimens in an effort to prolong human transplant survival.
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Affiliation(s)
- Julian K Horwitz
- Translational Transplant Research Center, Icahn School of Medicine at Mount Sinai, New York, United States of America
| | - Sofia Bin
- Translational Transplant Research Center, Icahn School of Medicine at Mount Sinai, New York, United States of America
| | - Robert L Fairchild
- Department of Immunology, Cleveland Clinic, Cleveland, United States of America
| | - Karen S Keslar
- Department of Immunology, Cleveland Clinic, Cleveland, United States of America
| | - Zhengzi Yi
- Translational Transplant Research Center, Icahn School of medicine at Mount Sinai, New York, United States of America
| | - Weijia Zhang
- Translational Transplant Research Center, Icahn school of Medicine at Mount Sinai, New York, United States of America
| | - Vasile I Pavlov
- Translational Transplant Research Center, Icahn School of Medicine at Mount Sinai, New York, United States of America
| | - Yansui Li
- Translational Transplant Research Center, Icahn School of Medicine at Mount Sinai, New York, United States of America
| | - Joren C Madsen
- Department of Surgery, Massachusetts General Hospital, Boston, United States of America
| | - Paolo Cravedi
- Translational Transplant Research Center, Icahn School of Medicine at Mount Sinai, New York, United States of America
| | - Peter S Heeger
- Translational Transplant Research Center, Icahn School of Medicine at Mount Sinai, New York, United States of America
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11
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Frigerio S, Lartey DA, D’Haens GR, Grootjans J. The Role of the Immune System in IBD-Associated Colorectal Cancer: From Pro to Anti-Tumorigenic Mechanisms. Int J Mol Sci 2021; 22:12739. [PMID: 34884543 PMCID: PMC8657929 DOI: 10.3390/ijms222312739] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/18/2021] [Accepted: 11/23/2021] [Indexed: 12/12/2022] Open
Abstract
Patients with inflammatory bowel disease (IBD) have increased incidence of colorectal cancer (CRC). IBD-associated cancer follows a well-characterized sequence of intestinal epithelial changes, in which genetic mutations and molecular aberrations play a key role. IBD-associated cancer develops against a background of chronic inflammation and pro-inflammatory immune cells, and their products contribute to cancer development and progression. In recent years, the effect of the immunosuppressive microenvironment in cancer development and progression has gained more attention, mainly because of the unprecedented anti-tumor effects of immune checkpoint inhibitors in selected groups of patients. Even though IBD-associated cancer develops in the background of chronic inflammation which is associated with activation of endogenous anti-inflammatory or suppressive mechanisms, the potential role of an immunosuppressive microenvironment in these cancers is largely unknown. In this review, we outline the role of the immune system in promoting cancer development in chronic inflammatory diseases such as IBD, with a specific focus on the anti-inflammatory mechanisms and suppressive immune cells that may play a role in IBD-associated tumorigenesis.
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Affiliation(s)
- Sofía Frigerio
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Location AMC, 1105 AZ Amsterdam, The Netherlands; (S.F.); (D.A.L.); (G.R.D.)
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Centers, Location AMC, 1105 AZ Amsterdam, The Netherlands
| | - Dalia A. Lartey
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Location AMC, 1105 AZ Amsterdam, The Netherlands; (S.F.); (D.A.L.); (G.R.D.)
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Centers, Location AMC, 1105 AZ Amsterdam, The Netherlands
| | - Geert R. D’Haens
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Location AMC, 1105 AZ Amsterdam, The Netherlands; (S.F.); (D.A.L.); (G.R.D.)
| | - Joep Grootjans
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Location AMC, 1105 AZ Amsterdam, The Netherlands; (S.F.); (D.A.L.); (G.R.D.)
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Centers, Location AMC, 1105 AZ Amsterdam, The Netherlands
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12
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Wang H, Tian T, Zhang J. Tumor-Associated Macrophages (TAMs) in Colorectal Cancer (CRC): From Mechanism to Therapy and Prognosis. Int J Mol Sci 2021; 22:ijms22168470. [PMID: 34445193 PMCID: PMC8395168 DOI: 10.3390/ijms22168470] [Citation(s) in RCA: 134] [Impact Index Per Article: 44.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 07/30/2021] [Accepted: 08/02/2021] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer (CRC) is a malignant tumor in the digestive system whose incidence and mortality is high-ranking among tumors worldwide. The initiation and progression of CRC is a complex process involving genetic alterations in cancer cells and multiple factors from the surrounding tumor cell microenvironment. As accumulating evidence has shown, tumor-associated macrophages (TAMs)—as abundant and active infiltrated inflammatory cells in the tumor microenvironment (TME)—play a crucial role in CRC. This review focuses on the different mechanisms of TAM in CRC, including switching of phenotypical subtypes; promoting tumor proliferation, invasion, and migration; facilitating angiogenesis; mediating immunosuppression; regulating metabolism; and interacting with the microbiota. Although controversy remains in clinical evidence regarding the role of TAMs in CRC, clarifying their significance in therapy and the prognosis of CRC may shed new light on the optimization of TAM-centered approaches in clinical care.
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Affiliation(s)
- Hui Wang
- National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting Theranostics, Guangxi Medical University, Nanning 530021, China;
| | - Tian Tian
- College of Life Science and Bioengineering, Beijing Jiaotong University, Beijing 100044, China
- Correspondence: (T.T.); (J.Z.)
| | - Jinhua Zhang
- National Center for International Research of Bio-Targeting Theranostics, Guangxi Key Laboratory of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting Theranostics, Guangxi Medical University, Nanning 530021, China;
- College of Life Science and Bioengineering, Beijing Jiaotong University, Beijing 100044, China
- Correspondence: (T.T.); (J.Z.)
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13
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Schumacher MA, Dennis IC, Liu CY, Robinson C, Shang J, Bernard JK, Washington MK, Polk DB, Frey MR. NRG4-ErbB4 signaling represses proinflammatory macrophage activity. Am J Physiol Gastrointest Liver Physiol 2021; 320:G990-G1001. [PMID: 33826403 PMCID: PMC8285586 DOI: 10.1152/ajpgi.00296.2020] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 03/11/2021] [Accepted: 04/01/2021] [Indexed: 01/31/2023]
Abstract
Proinflammatory macrophages are essential drivers of colitis and express the growth factor receptor ErbB4. This study tested the role of ErbB4 and its specific ligand, NRG4, in regulating macrophage function. We show that endogenous NRG4-ErbB4 signaling limits macrophage production of proinflammatory cytokines in vitro and limits colitis severity in vivo and thus is a potential target for therapeutic intervention.
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Affiliation(s)
- Michael A Schumacher
- The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, California
- Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, California
- Department of Biochemistry and Molecular Biology, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Isabella C Dennis
- The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, California
| | - Cambrian Y Liu
- The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, California
| | - Cache Robinson
- The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, California
| | - Judie Shang
- The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, California
| | - Jessica K Bernard
- The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, California
| | - M Kay Washington
- Department of Pathology, Microbiology, and Immunology, Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - D Brent Polk
- The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, California
| | - Mark R Frey
- The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, California
- Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, California
- Department of Biochemistry and Molecular Biology, Keck School of Medicine, University of Southern California, Los Angeles, California
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14
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Kimm MA, Klenk C, Alunni-Fabbroni M, Kästle S, Stechele M, Ricke J, Eisenblätter M, Wildgruber M. Tumor-Associated Macrophages-Implications for Molecular Oncology and Imaging. Biomedicines 2021; 9:biomedicines9040374. [PMID: 33918295 PMCID: PMC8066018 DOI: 10.3390/biomedicines9040374] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/29/2021] [Accepted: 03/31/2021] [Indexed: 12/21/2022] Open
Abstract
Tumor-associated macrophages (TAMs) represent the largest group of leukocytes within the tumor microenvironment (TME) of solid tumors and orchestrate the composition of anti- as well as pro-tumorigenic factors. This makes TAMs an excellent target for novel cancer therapies. The plasticity of TAMs resulting in varying membrane receptors and expression of intracellular proteins allow the specific characterization of different subsets of TAMs. Those markers similarly allow tracking of TAMs by different means of molecular imaging. This review aims to provides an overview of the origin of tumor-associated macrophages, their polarization in different subtypes, and how characteristic markers of the subtypes can be used as targets for molecular imaging and theranostic approaches.
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Affiliation(s)
- Melanie A. Kimm
- Department of Radiology, University Hospital, LMU Munich, 81377 Munich, Germany; (M.A.K.); (C.K.); (M.A.-F.); (S.K.); (M.S.); (J.R.)
| | - Christopher Klenk
- Department of Radiology, University Hospital, LMU Munich, 81377 Munich, Germany; (M.A.K.); (C.K.); (M.A.-F.); (S.K.); (M.S.); (J.R.)
| | - Marianna Alunni-Fabbroni
- Department of Radiology, University Hospital, LMU Munich, 81377 Munich, Germany; (M.A.K.); (C.K.); (M.A.-F.); (S.K.); (M.S.); (J.R.)
| | - Sophia Kästle
- Department of Radiology, University Hospital, LMU Munich, 81377 Munich, Germany; (M.A.K.); (C.K.); (M.A.-F.); (S.K.); (M.S.); (J.R.)
| | - Matthias Stechele
- Department of Radiology, University Hospital, LMU Munich, 81377 Munich, Germany; (M.A.K.); (C.K.); (M.A.-F.); (S.K.); (M.S.); (J.R.)
| | - Jens Ricke
- Department of Radiology, University Hospital, LMU Munich, 81377 Munich, Germany; (M.A.K.); (C.K.); (M.A.-F.); (S.K.); (M.S.); (J.R.)
| | - Michel Eisenblätter
- Department of Diagnostic and Interventional Radiology, Freiburg University Hospital, 79106 Freiburg, Germany;
| | - Moritz Wildgruber
- Department of Radiology, University Hospital, LMU Munich, 81377 Munich, Germany; (M.A.K.); (C.K.); (M.A.-F.); (S.K.); (M.S.); (J.R.)
- Correspondence: ; Tel.: +49-0-89-4400-76640
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15
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Possible Roles of Interleukin-4 and -13 and Their Receptors in Gastric and Colon Cancer. Int J Mol Sci 2021; 22:ijms22020727. [PMID: 33450900 PMCID: PMC7828336 DOI: 10.3390/ijms22020727] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/04/2021] [Accepted: 01/08/2021] [Indexed: 02/08/2023] Open
Abstract
Interleukin (IL)-4 and -13 are structurally and functionally related cytokines sharing common receptor subunits. They regulate immune responses and, moreover, are involved in the pathogenesis of a variety of human neoplasms. Three different receptors have been described for IL-4, but only IL-4 receptor type II (IL-4Rα/IL-13Rα1) is expressed in solid tumors. While IL-13 can also bind to three different receptors, IL-13 receptor type I (IL-4Rα/IL-13Rα1/IL-13Rα2) and type II (IL-4Rα/IL-13Rα1) are expressed in solid tumors. After receptor binding, IL-4 and IL-13 can mediate tumor cell proliferation, survival, and metastasis in gastric or colon cancer. This review summarizes the results about the role of IL-4/IL-13 and their receptors in gastric and colon cancer.
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16
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Fogg KC, Miller AE, Li Y, Flanigan W, Walker A, O'Shea A, Kendziorski C, Kreeger PK. Ovarian cancer cells direct monocyte differentiation through a non-canonical pathway. BMC Cancer 2020; 20:1008. [PMID: 33069212 PMCID: PMC7568422 DOI: 10.1186/s12885-020-07513-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 10/08/2020] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Alternatively-activated macrophages (AAMs), an anti-inflammatory macrophage subpopulation, have been implicated in the progression of high grade serous ovarian carcinoma (HGSOC). Increased levels of AAMs are correlated with poor HGSOC survival rates, and AAMs increase the attachment and spread of HGSOC cells in vitro. However, the mechanism by which monocytes in the HGSOC tumor microenvironment are differentiated and polarized to AAMs remains unknown. METHODS Using an in vitro co-culture device, we cultured naïve, primary human monocytes with a panel of five HGSOC cell lines over the course of 7 days. An empirical Bayesian statistical method, EBSeq, was used to couple RNA-seq with observed monocyte-derived cell phenotype to explore which HGSOC-derived soluble factors supported differentiation to CD68+ macrophages and subsequent polarization towards CD163+ AAMs. Pathways of interest were interrogated using small molecule inhibitors, neutralizing antibodies, and CRISPR knockout cell lines. RESULTS HGSOC cell lines displayed a wide range of abilities to generate AAMs from naïve monocytes. Much of this variation appeared to result from differential ability to generate CD68+ macrophages, as most CD68+ cells were also CD163+. Differences in tumor cell potential to generate macrophages was not due to a MCSF-dependent mechanism, nor variance in established pro-AAM factors. TGFα was implicated as a potential signaling molecule produced by tumor cells that could induce macrophage differentiation, which was validated using a CRISPR knockout of TGFA in the OVCAR5 cell line. CONCLUSIONS HGSOC production of TGFα drives monocytes to differentiate into macrophages, representing a central arm of the mechanism by which AAMs are generated in the tumor microenvironment.
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Affiliation(s)
- Kaitlin C Fogg
- Department of Biomedical Engineering, University of Wisconsin-Madison, 1111 Highland Ave, WIMR 4553, Madison, WI, 53705, USA
| | - Andrew E Miller
- Department of Biomedical Engineering, University of Wisconsin-Madison, 1111 Highland Ave, WIMR 4553, Madison, WI, 53705, USA
| | - Ying Li
- Department of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Will Flanigan
- Department of Biomedical Engineering, University of Wisconsin-Madison, 1111 Highland Ave, WIMR 4553, Madison, WI, 53705, USA
| | - Alyssa Walker
- Department of Biomedical Engineering, University of Wisconsin-Madison, 1111 Highland Ave, WIMR 4553, Madison, WI, 53705, USA
| | - Andrea O'Shea
- Department of Obstetrics and Gynecology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Christina Kendziorski
- Department of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Pamela K Kreeger
- Department of Biomedical Engineering, University of Wisconsin-Madison, 1111 Highland Ave, WIMR 4553, Madison, WI, 53705, USA.
- Department of Obstetrics and Gynecology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.
- Department of Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.
- University of Wisconsin Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.
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17
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Lim K, Kim TH, Trzeciak A, Amitrano AM, Reilly EC, Prizant H, Fowell DJ, Topham DJ, Kim M. In situ neutrophil efferocytosis shapes T cell immunity to influenza infection. Nat Immunol 2020; 21:1046-1057. [PMID: 32747818 PMCID: PMC7791396 DOI: 10.1038/s41590-020-0746-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 06/23/2020] [Indexed: 02/07/2023]
Abstract
Early recruitment of neutrophils from the blood to sites of tissue infection is a hallmark of innate immune responses. However, little is known about the mechanisms by which apoptotic neutrophils are cleared in infected tissues during resolution and the immunological consequences of in situ efferocytosis. Using intravital multiphoton microscopy, we show previously unrecognized motility patterns of interactions between neutrophils and tissue-resident phagocytes within the influenza-infected mouse airway. Newly infiltrated inflammatory monocytes become a chief pool of phagocytes and play a key role in the clearance of highly motile apoptotic neutrophils during the resolution phase. Apoptotic neutrophils further release epidermal growth factor and promote the differentiation of monocytes into tissue-resident antigen-presenting cells for activation of antiviral T cell effector functions. Collectively, these results suggest that the presence of in situ neutrophil resolution at the infected tissue is critical for optimal CD8+ T cell-mediated immune protection.
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Affiliation(s)
- Kihong Lim
- Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA.
| | - Tae-Hyoun Kim
- Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA
| | - Alissa Trzeciak
- Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA
| | - Andrea M Amitrano
- Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA
| | - Emma C Reilly
- Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA
| | - Hen Prizant
- Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA
| | - Deborah J Fowell
- Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA
| | - David J Topham
- Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA
| | - Minsoo Kim
- Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA.
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18
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Oya Y, Hayakawa Y, Koike K. Tumor microenvironment in gastric cancers. Cancer Sci 2020; 111:2696-2707. [PMID: 32519436 PMCID: PMC7419059 DOI: 10.1111/cas.14521] [Citation(s) in RCA: 157] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 05/25/2020] [Accepted: 06/01/2020] [Indexed: 02/06/2023] Open
Abstract
The tumor microenvironment favors the growth and expansion of cancer cells. Many cell types are involved in the tumor microenvironment such as inflammatory cells, fibroblasts, nerves, and vascular endothelial cells. These stromal cells contribute to tumor growth by releasing various molecules to either directly activate the growth signaling in cancer cells or remodel surrounding areas. This review introduces recent advances in findings on the interactions within the tumor microenvironment such as in cancer-associated fibroblasts (CAFs), immune cells, and endothelial cells, in particular those established in mouse gastric cancer models. In mice, myofibroblasts in the gastric stroma secrete R-spondin and support normal gastric stem cells. Most CAFs promote tumor growth in a paracrine manner, but CAF population appears to be heterogeneous in terms of their function and origin, and include both tumor-promoting and tumor-restraining populations. Among immune cell populations, tumor-associated macrophages, including M1 and M2 macrophages, and myeloid-derived suppressor cells (MDSCs), are reported to directly or indirectly promote gastric tumorigenesis by secreting soluble factors or modulating immune responses. Endothelial cells or blood vessels not only fuel tumors with nutrients, but also interact with cancer stem cells and immune cells by secreting chemokines or cytokines, and act as a cancer niche. Understanding these interactions within the tumor microenvironment would contribute to unraveling new therapeutic targets.
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Affiliation(s)
- Yukiko Oya
- Department of GastroenterologyGraduate school of Medicinethe University of TokyoTokyoJapan
| | - Yoku Hayakawa
- Department of GastroenterologyGraduate school of Medicinethe University of TokyoTokyoJapan
| | - Kazuhiko Koike
- Department of GastroenterologyGraduate school of Medicinethe University of TokyoTokyoJapan
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19
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Fu E, Liu T, Yu S, Chen X, Song L, Lou H, Ma F, Zhang S, Hussain S, Guo J, Sun J, Yu P, Mao X, Wei L. M2 macrophages reduce the radiosensitivity of head and neck cancer by releasing HB‑EGF. Oncol Rep 2020; 44:698-710. [PMID: 32627036 PMCID: PMC7336513 DOI: 10.3892/or.2020.7628] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 04/24/2020] [Indexed: 12/12/2022] Open
Abstract
The aim of the present study was to examine the potential role of human heparin‑binding epidermal growth factor (HB‑EGF) secreted by M2 macrophages in the development of radioresistance in head and neck squamous cell carcinoma (HNSCC). Immunohistochemistry was used to detect radiosensitivity in human papilloma virus (HPV)‑positive and HPV‑negative HNSCC tissues and immunohistochemical staining with specific antibodies for macrophage surface markers was used to assess the infiltration of M1 and M2 macrophages in HPV‑positive and ‑negative HNSCC tissues. The expression of HB‑EGF in HPV‑positive and ‑negative HNSCC tissues was determined by multi‑cytokine detection in order to determine the relationship between HB‑EGF and radiosensitivity. M1 and M2 macrophages were co‑cultured with the HNSCC cell line CAL27 and treated with HB‑EGF and its neutralizing antibodies to assess radiation sensitivity. Finally, the major DNA double‑strand break repair pathways required for the activation of HB‑EGF and promotion of epidermal growth factor receptor (EGFR) were identified. The results revealed that radiosensitivity was higher in HPV‑positive HNSCC compared with HPV‑negative. There was a higher infiltration of M2 macrophages in HPV‑negative HNSCC, which were revealed as the main source of HB‑EGF secretion. Furthermore, it was determined that overexpression of HB‑EGF induced radioresistance in HPV‑negative HNSCC. HB‑EGF promoted the activation of the non‑homologous end‑joining pathway by activating EGFR. To the best of our knowledge, this is the first study to demonstrate the association between HB‑EGF and radiosensitivity in HNSCC. These results indicated that the secretion of HB‑EGF by M2 macrophages could induce radioresistance of HPV‑negative HNSCC.
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Affiliation(s)
- Enhui Fu
- Department of Microbiology, Harbin Medical University, Wu Lien‑Teh Institute, The Heilongjiang Key Laboratory of Immunity and Infection, Harbin, Heilongjiang 150081, P.R. China
| | - Tianyang Liu
- Department of Microbiology, Harbin Medical University, Wu Lien‑Teh Institute, The Heilongjiang Key Laboratory of Immunity and Infection, Harbin, Heilongjiang 150081, P.R. China
| | - Siyang Yu
- Department of Microbiology, Harbin Medical University, Wu Lien‑Teh Institute, The Heilongjiang Key Laboratory of Immunity and Infection, Harbin, Heilongjiang 150081, P.R. China
| | - Xiaohang Chen
- The Genetics Laboratory, Longgang District Maternity and Child Healthcare Hospital, Shenzhen, Guangdong 518100, P.R. China
| | - Lianhao Song
- Department of Microbiology, Harbin Medical University, Wu Lien‑Teh Institute, The Heilongjiang Key Laboratory of Immunity and Infection, Harbin, Heilongjiang 150081, P.R. China
| | - Huihuang Lou
- The Second Department of Microbiological Examination, Center for Disease Control and Prevention in Wenzhou, Wenzhou Zhejiang 325000, P.R. China
| | - Fen Ma
- Department of Microbiology, Harbin Medical University, Wu Lien‑Teh Institute, The Heilongjiang Key Laboratory of Immunity and Infection, Harbin, Heilongjiang 150081, P.R. China
| | - Siwei Zhang
- Department of Microbiology, Harbin Medical University, Wu Lien‑Teh Institute, The Heilongjiang Key Laboratory of Immunity and Infection, Harbin, Heilongjiang 150081, P.R. China
| | - Sajjad Hussain
- Department of Microbiology, Harbin Medical University, Wu Lien‑Teh Institute, The Heilongjiang Key Laboratory of Immunity and Infection, Harbin, Heilongjiang 150081, P.R. China
| | - Junnan Guo
- Department of Head and Neck Surgery, The Tumor Hospital of HMU, Harbin, Heilongjiang 150080, P.R. China
| | - Ji Sun
- Department of Head and Neck Surgery, The Tumor Hospital of HMU, Harbin, Heilongjiang 150080, P.R. China
| | - Pingyang Yu
- Department of Head and Neck Surgery, The Tumor Hospital of HMU, Harbin, Heilongjiang 150080, P.R. China
| | - Xionghui Mao
- Department of Head and Neck Surgery, The Tumor Hospital of HMU, Harbin, Heilongjiang 150080, P.R. China
| | - Lanlan Wei
- Department of Microbiology, Harbin Medical University, Wu Lien‑Teh Institute, The Heilongjiang Key Laboratory of Immunity and Infection, Harbin, Heilongjiang 150081, P.R. China
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Mechanisms of the Epithelial-Mesenchymal Transition and Tumor Microenvironment in Helicobacter pylori-Induced Gastric Cancer. Cells 2020; 9:cells9041055. [PMID: 32340207 PMCID: PMC7225971 DOI: 10.3390/cells9041055] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/16/2020] [Accepted: 04/17/2020] [Indexed: 12/11/2022] Open
Abstract
Helicobacter pylori (H. pylori) is one of the most common human pathogens, affecting half of the world’s population. Approximately 20% of the infected patients develop gastric ulcers or neoplastic changes in the gastric stroma. An infection also leads to the progression of epithelial–mesenchymal transition within gastric tissue, increasing the probability of gastric cancer development. This paper aims to review the role of H. pylori and its virulence factors in epithelial–mesenchymal transition associated with malignant transformation within the gastric stroma. The reviewed factors included: CagA (cytotoxin-associated gene A) along with induction of cancer stem-cell properties and interaction with YAP (Yes-associated protein pathway), tumor necrosis factor α-inducing protein, Lpp20 lipoprotein, Afadin protein, penicillin-binding protein 1A, microRNA-29a-3p, programmed cell death protein 4, lysosomal-associated protein transmembrane 4β, cancer-associated fibroblasts, heparin-binding epidermal growth factor (HB-EGF), matrix metalloproteinase-7 (MMP-7), and cancer stem cells (CSCs). The review summarizes the most recent findings, providing insight into potential molecular targets and new treatment strategies for gastric cancer.
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21
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Shan H, Yao S, Ye Y, Yu Q. 3-Deoxy-2β,16-dihydroxynagilactone E, a natural compound from Podocarpus nagi, preferentially inhibits JAK2/STAT3 signaling by allosterically interacting with the regulatory domain of JAK2 and induces apoptosis of cancer cells. Acta Pharmacol Sin 2019; 40:1578-1586. [PMID: 31201357 PMCID: PMC7471446 DOI: 10.1038/s41401-019-0254-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 05/20/2019] [Indexed: 02/08/2023] Open
Abstract
The Janus kinase (JAK)/signal transducer and activator of transcription (STAT) pathways, especially the JAK2/STAT3 pathway, play vital roles in the development of many malignancies. Overactivation of STAT3 promotes cancer cell survival and proliferation. Therefore, the JAK2/STAT3-signaling pathway has been considered a promising target for cancer therapy. In this study, we identified a natural compound 3-deoxy-2β,16-dihydroxynagilactone E (B6) from the traditional Chinese medicinal plant Podocarpus nagi as a potent inhibitor of STAT3 signaling. B6 preferentially inhibited the phosphorylation of STAT3 by interacting with and inactivating JAK2, the main upstream kinase of STAT3. B6 dose-dependently inhibited IL-6-induced STAT3 signaling with an IC50 of 0.2 μM. In contrast to other JAK2 inhibitors, B6 did not interact with the catalytic domain but instead with the FERM-SH2 domain of JAK2. This interaction was JAK-specific since B6 had little effect on other tyrosine kinases. Furthermore, B6 potently inhibited the growth and induced apoptosis of MDA-MB-231 and MDA-MB-468 breast cancer cells with overactivated STAT3. Taken together, our study uncovers a novel compound and a novel mechanism for the regulation of JAK2 and offers a new therapeutic approach for the treatment of cancers with overactivated JAK2/STAT3.
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Zhao X, Qu J, Liu X, Wang J, Ma X, Zhao X, Yang Q, Yan W, Zhao Z, Hui Y, Bai H, Zhang S. Baicalein suppress EMT of breast cancer by mediating tumor-associated macrophages polarization. Am J Cancer Res 2018; 8:1528-1540. [PMID: 30210921 PMCID: PMC6129485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 07/18/2018] [Indexed: 06/08/2023] Open
Abstract
Tumor associated macrophages (TAMs) are the main infiltrating component in the tumor microenvironment and play an important role in cancer progression. Baicalein has a wide range of pharmacological properties. This study explores the potential effect of baicalein on macrophages polarization and epithelial-mesenchymal transition (EMT) of breast cancer. Co-culture system was established to evaluate the interaction between TAMs and breast cancer cells. Then the role of baicalein in modulating TAMs function was assessed. Finally, breast cancer mouse model was established to study the underlying mechanism. In vitro experiments showed that co-culture with M2 macrophages significantly enhanced EMT of both MDA-MB-231 and MCF-7 breast cancer cells. Baicalein could regulate polarization of M2 and attenuate TGF-β1 secretion. In vivo experiments showed that compared with the MDA-MB-231 + M2 group, tumor growth and metastasis of baicalein + MDA-MB-231 + M2 group was significantly inhibited, with smaller tumor size and decreased lung metastasis lesions. Our findings suggest that the regulation of TAMs may be a novel mechanism underlying the anti-tumor effects of baicalein in breast cancer.
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Affiliation(s)
- Xixi Zhao
- Department of Oncology, The Second Affiliated Hospital of Xi’an Jiaotong University157 West Fifth Street, Xi’an 710004, Shaanxi, P. R. China
| | - Jingkun Qu
- The Second Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University277 West Yanta Road, Xi’an 710061, Shaanxi, P. R. China
| | - Xu Liu
- The Second Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University277 West Yanta Road, Xi’an 710061, Shaanxi, P. R. China
| | - Jizhao Wang
- The Second Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University277 West Yanta Road, Xi’an 710061, Shaanxi, P. R. China
| | - Xingcong Ma
- Department of Oncology, The Second Affiliated Hospital of Xi’an Jiaotong University157 West Fifth Street, Xi’an 710004, Shaanxi, P. R. China
| | - Xiaoyao Zhao
- Department of Oncology, The Second Affiliated Hospital of Xi’an Jiaotong University157 West Fifth Street, Xi’an 710004, Shaanxi, P. R. China
| | - Qian Yang
- Department of Oncology, The Second Affiliated Hospital of Xi’an Jiaotong University157 West Fifth Street, Xi’an 710004, Shaanxi, P. R. China
| | - Wanjun Yan
- Department of Oncology, The Second Affiliated Hospital of Xi’an Jiaotong University157 West Fifth Street, Xi’an 710004, Shaanxi, P. R. China
| | - Zitong Zhao
- Department of Oncology, The Second Affiliated Hospital of Xi’an Jiaotong University157 West Fifth Street, Xi’an 710004, Shaanxi, P. R. China
| | - Yuxin Hui
- Institute of Traditional Chinese Medicine, Hunan University of Chinese Medicine300 Xueshi Street, Changsha 410208, Hunan, P. R. China
| | - Haocheng Bai
- Department of Blood, The Chengdu Military Command General Hospital of Kunming Medical University212 West Daguan Road, Kunming 650032, Yunnan, P. R. China
| | - Shuqun Zhang
- Department of Oncology, The Second Affiliated Hospital of Xi’an Jiaotong University157 West Fifth Street, Xi’an 710004, Shaanxi, P. R. China
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23
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Fn14 deficiency ameliorates psoriasis-like skin disease in a murine model. Cell Death Dis 2018; 9:801. [PMID: 30038329 PMCID: PMC6056551 DOI: 10.1038/s41419-018-0820-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 05/22/2018] [Accepted: 06/22/2018] [Indexed: 12/12/2022]
Abstract
Tumor necrosis factor (TNF)-like weak inducer of apoptosis (TWEAK) is a multifunctional cytokine that acts through its receptor fibroblast growth factor-inducible 14 (Fn14). Recent studies demonstrated that the TWEAK/Fn14 signals participate in the development of psoriasis. The purpose of this study was to further explore the effect of Fn14 inhibition on experimental psoriasis. Psoriasis-like skin disease was induced in the wild-type and Fn14-knockout BALB/c mice. We found that Fn14 deficiency ameliorates psoriasis-like lesion in this model, accompanied by less inflammatory cell infiltration and proinflammatory cytokine production in lesional skin. The cutaneous expression of TNF receptor type 2 also decreased in the Fn14-deficient mice. Moreover, the topical application of TWEAK exacerbated psoriatic lesion in the wild-type but not in the Fn14-deficient mice. Furthermore, TWEAK promoted the expression of interleukin 8, keratin 17, and epidermal growth factor receptor (EGFR) but inhibited the expression of involucrin in psoriatic keratinocytes in vitro. Interestingly, such effect of TWEAK was abrogated by an EGFR inhibitor (erlotinib). TWEAK also enhances the proliferation and interleukin-6 production of dermal microvascular endothelial cells under psoriatic condition. In conclusion, TWEAK/Fn14 signals contribute to the development of psoriasis, and involves the modulation of resident cells and the transduction of the EGFR pathway. Fn14 inhibition might be a novel therapeutic strategy for patients with psoriasis.
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24
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Borlak J, Länger F, Chatterji B. Serum proteome mapping of EGF transgenic mice reveal mechanistic biomarkers of lung cancer precursor lesions with clinical significance for human adenocarcinomas. Biochim Biophys Acta Mol Basis Dis 2018; 1864:3122-3144. [PMID: 29960043 DOI: 10.1016/j.bbadis.2018.06.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 06/12/2018] [Accepted: 06/25/2018] [Indexed: 12/18/2022]
Abstract
Atypical adenomatous hyperplasia (AAH) of the lung is a pre-invasive lesion (PL) with high risk of progression to lung cancer (LC). However, the pathways involved are uncertain. We searched for novel mechanistic biomarkers of AAH in an EGF transgenic disease model of lung cancer. Disease regulated proteins were validated by Western immunoblotting and immunohistochemistry (IHC) of control and morphologically altered respiratory epithelium. Translational work involved clinical resection material. Collectively, 68 unique serum proteins were identified by 2DE-MALDI-TOF mass spectrometry and 13 reached statistical significance (p < 0.05). EGF, amphiregulin and the EGFR endosomal sorting protein VPS28 were induced up to 5-fold while IHC confirmed strong induction of these proteins. Furthermore, ApoA1, α-2-macroglobulin, and vitamin-D binding protein were nearly 6- and 2-fold upregulated in AAH; however, ApoA1 was oppositely regulated in LC to evidence disease stage dependent regulation of this tumour suppressor. Conversely, plasminogen and transthyretin were highly significantly repressed by 3- and 20-fold. IHC confirmed induced ApoA1, Fetuin-B and transthyretin expression to influence calcification, inflammation and tumour-infiltrating macrophages. Moreover, serum ApoA4, ApoH and ApoM were 2-, 2- and 6-fold repressed; however tissue ApoM and sphingosine-1-phosphate receptor expression was markedly induced to suggest a critical role of sphingosine-1-phosphate signalling in PL and malignant transformation. Finally, a comparison of three different LC models revealed common and unique serum biomarkers mechanistically linked to EGFR, cMyc and cRaf signalling. Their validation by IHC on clinical resection material established relevance for distinct human lung pathologies. In conclusion, we identified mechanistic biomarker candidates recommended for in-depth clinical evaluation.
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Affiliation(s)
- Jürgen Borlak
- Hannover Medical School, Centre for Pharmacology and Toxicology, Carl-Neuberg-Str. 1, 30625 Hannover, Germany.
| | - Florian Länger
- Hannover Medical School, Institute of Pathology, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Bijon Chatterji
- Hannover Medical School, Centre for Pharmacology and Toxicology, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
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25
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Goertzen C, Mahdi H, Laliberte C, Meirson T, Eymael D, Gil-Henn H, Magalhaes M. Oral inflammation promotes oral squamous cell carcinoma invasion. Oncotarget 2018; 9:29047-29063. [PMID: 30018735 PMCID: PMC6044370 DOI: 10.18632/oncotarget.25540] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 05/07/2018] [Indexed: 12/24/2022] Open
Abstract
Oral squamous cell carcinoma (OSCC) represents 95% of oral malignancies and invasion, and metastasis underlies disease morbidity and mortality. We recently established a direct link between oral inflammation and cancer invasion by showing that neutrophils increase OSCC invasion through a tumor necrosis factor (TNFα)-dependent mechanism. The objective of this study was to characterize OSCC-associated inflammation and to determine the molecular mechanisms underlying inflammation-mediated OSCC invasion. Our results showed a significant increase in neutrophil infiltration, the neutrophil-to-lymphocyte ratio in the OSCC microenvironment and increased inflammatory markers, particularly TNFα in saliva. We performed next-generation sequencing of the TNFα-treated OSCC cells and showed marked overexpression of over 180 genes distributed among clusters related to neutrophil recruitment, invasion, and invadopodia. At the molecular level, TNFα treatment increased phosphoinositide 3-kinase (PI3K)-mediated invadopodia formation and matrix metalloproteinase (MMP)-dependent invasion. We show here that TNFα promotes a pro-inflammatory and pro-invasion phenotype leading to the recruitment and activation of inflammatory cells in a paracrine mechanism. Increased TNFα in the tumor microenvironment tips the balance towards invasion leading to decreased overall survival and disease-free survival. This represents a significant advancement of oral cancer research and will support new treatment approaches to control OSCC invasion and metastasis.
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Affiliation(s)
- Cameron Goertzen
- Cancer Invasion and Metastasis Laboratory, Faculty of Dentistry, University of Toronto, Toronto, Canada
| | - Hayder Mahdi
- Cancer Invasion and Metastasis Laboratory, Faculty of Dentistry, University of Toronto, Toronto, Canada
| | - Catherine Laliberte
- Cancer Invasion and Metastasis Laboratory, Faculty of Dentistry, University of Toronto, Toronto, Canada
- Oral Pathology and Oral Medicine, Faculty of Dentistry, University of Toronto, Toronto, Canada
| | - Tomer Meirson
- Cell Migration and Invasion Laboratory, Faculty of Medicine in the Galilee, Bar-Ilan University, Safed, Israel
| | - Denise Eymael
- Cancer Invasion and Metastasis Laboratory, Faculty of Dentistry, University of Toronto, Toronto, Canada
| | - Hava Gil-Henn
- Cell Migration and Invasion Laboratory, Faculty of Medicine in the Galilee, Bar-Ilan University, Safed, Israel
| | - Marco Magalhaes
- Cancer Invasion and Metastasis Laboratory, Faculty of Dentistry, University of Toronto, Toronto, Canada
- Oral Pathology and Oral Medicine, Faculty of Dentistry, University of Toronto, Toronto, Canada
- Sunnybrook Health Sciences Centre, Toronto, Canada
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26
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Li Q, Zheng M, Liu Y, Sun W, Shi J, Ni J, Wang Q. A pathogenetic role for M1 macrophages in peritoneal dialysis-associated fibrosis. Mol Immunol 2018; 94:131-139. [PMID: 29306153 DOI: 10.1016/j.molimm.2017.12.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 11/06/2017] [Accepted: 12/25/2017] [Indexed: 01/08/2023]
Abstract
Peritoneal fibrosis (PF) is a frequent complication of peritoneal dialysis (PD) accompanied by the infiltration of inflammatory cells. Recently, the function of macrophages in an inflammatory microenvironment during PD remains unknown. This study aimed to elucidate the role of distinct macrophage phenotypes in the progression of PF through macrophage depletion in a peritoneal dialysis-induced mouse model. After injection of 200 μl liposomal clodronate (LC) at the start of instillation PD fluids (PDFs), mice were injected with 100 μL LC every 4 days after the first time injection for longer macrophage depletion, while control mice were co-treated with PBS liposomes. For macrophages transfusion,primary macrophages (M0) were stimulated into M1 and M2 macrophages and transfuritoneal fibrosis (PF) is a frequent complication of peritoneal dialysis (PD) accompanied by the infiltration of inflammatory cells. Recently, the function of macrophages in an inflammatory microenvironment during PD remains unknown. This study aimed to elucidate the role of distinct macrophage phenotypes in the progression of PF through macrophage depletion in a peritoneal dialysis-induced mouse model. After injection of 200 μl liposomal clodronate (LC) at the start of instillation PD fluids (PDFs), mice were injected with 100 μL LC every 4 days after the first time injection for longer macrophage depletion, while control mice were co-treated with PBS liposomes. For macrophages transfusion,primary macrophages (M0) were stimulated into M1 and M2 macrophages and transfused into the mice the next day after each LC injection. Mice were sacrificed after 6 weeks of PDFs treatment for the assessment of histological changes, ECM deposition and peritoneal ultrafiltration function. Systemic monocyte/macrophage depletion resulted in less severe structural alterations, including thickening and cubic transformation of mesothelial cells, fibrin deposition, fibrous capsule formation, and interstitial fibrosis. A strong reduction of alpha-smooth muscle actin (α-SMA) and fibronectin expression, as well as an increased E-cadherin expression was also observed, indicating an overall inhibition of peritoneal fibrosis in macrophages depletion mice.M1 macrophage reperfusion showed a significant increase in histological damages, ECM deposition and peritoneal ultrafiltration functional decline compared with those of the M2 and control groups. TLR4 expression was enhanced in M1 macrophage-treated group. These results suggest that M1 macrophages are an important mediator of peritoneal fibrosis.
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Affiliation(s)
- Qing Li
- Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
| | - Min Zheng
- Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
| | - Yueheng Liu
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Wei Sun
- Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
| | - Jun Shi
- Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
| | - Jie Ni
- Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
| | - Qiong Wang
- Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China.
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