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Johnson BD, Zhu Z, Lequio M, Powers CGD, Bai Q, Xiao H, Fajardo E, Wakefield MR, Fang Y. SARS-CoV-2 spike protein inhibits growth of prostate cancer: a potential role of the COVID-19 vaccine killing two birds with one stone. Med Oncol 2022; 39:32. [PMID: 35059896 PMCID: PMC8775145 DOI: 10.1007/s12032-021-01628-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 12/13/2021] [Indexed: 12/20/2022]
Affiliation(s)
- Bradley D Johnson
- Department of Microbiology, Immunology & Pathology, Des Moines University College of Osteopathic Medicine, Des Moines, IA, 50312, USA
| | - Ziwen Zhu
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Marco Lequio
- Department of Microbiology, Immunology & Pathology, Des Moines University College of Osteopathic Medicine, Des Moines, IA, 50312, USA
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Coby G D Powers
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Qian Bai
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Huaping Xiao
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Emerson Fajardo
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Mark R Wakefield
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Yujiang Fang
- Department of Microbiology, Immunology & Pathology, Des Moines University College of Osteopathic Medicine, Des Moines, IA, 50312, USA.
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA.
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2
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Zhu Z, Parikh P, Zhao H, Givens NT, Beck DB, Willson CM, Bai Q, Wakefield MR, Fang Y. Targeting immunometabolism of neoplasms by interleukins: A promising immunotherapeutic strategy for cancer treatment. Cancer Lett 2021; 518:94-101. [PMID: 34153401 DOI: 10.1016/j.canlet.2021.06.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/23/2021] [Accepted: 06/11/2021] [Indexed: 12/23/2022]
Abstract
In recent years, tumor metabolism has become a prevalent research topic for scientists and pharmaceutical companies. As research in the field has progressed, the metabolism-based therapy of tumors has ushered in new opportunities. Most tumors emerge and evolve under selective pressure from their microenvironment, which promotes the diversification of both neoplastic and non-neoplastic compartments of the tumor microenvironment (TME), and finally reaches a certain degree of intratumoral heterogeneity. As a result of the tumor intratumoral heterogeneity, tumor cells often possess a complex energy metabolism phenotype. During tumor progression, the metabolism for both tumor parenchyma and stroma is reprogrammed. The tumor stroma mainly consists of the extracellular matrix, fibroblasts, and immune cells. Interestingly, tumor-infiltrating immune cells utilize different metabolites based on their subtype and function, and these immunometabolic pathways can be modified in the TME. In particular, interleukins play a vital role in the activation and differentiation of immune cells and have exhibited multiple effects on tumor cell neoplasia, invasion, and metastasis. In this review, we summarize the common mechanisms of interleukins affecting the tumor and tumor-infiltrating immune cells metabolically and discuss how these mechanisms may lead to novel therapeutic opportunities. This review might contribute to the novel development of cancer immunotherapy.
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Affiliation(s)
- Ziwen Zhu
- Department of Microbiology, Immunology & Pathology, Des Moines University, Des Moines, IA, USA; Department of Surgery, University of Missouri School of Medicine, Columbia, MO, USA.
| | - Pooja Parikh
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Hongyun Zhao
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Nathan T Givens
- Department of Microbiology, Immunology & Pathology, Des Moines University, Des Moines, IA, USA
| | - Damien B Beck
- Department of Microbiology, Immunology & Pathology, Des Moines University, Des Moines, IA, USA
| | - Conner M Willson
- Department of Microbiology, Immunology & Pathology, Des Moines University, Des Moines, IA, USA
| | - Qian Bai
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, USA
| | - Mark R Wakefield
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, USA
| | - Yujiang Fang
- Department of Microbiology, Immunology & Pathology, Des Moines University, Des Moines, IA, USA; Department of Surgery, University of Missouri School of Medicine, Columbia, MO, USA.
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3
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Li L, Wei J, Suber TL, Ye Q, Miao J, Li S, Taleb SJ, Tran KC, Tamaskar AS, Zhao J, Zhao Y. IL-37-induced activation of glycogen synthase kinase 3β promotes IL-1R8/Sigirr phosphorylation, internalization, and degradation in lung epithelial cells. J Cell Physiol 2021; 236:5676-5685. [PMID: 33400290 DOI: 10.1002/jcp.30253] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/16/2020] [Accepted: 12/21/2020] [Indexed: 12/30/2022]
Abstract
Interleukin (IL)-37 diminishes a variety of inflammatory responses through ligation to its receptor IL-1R8/Sigirr. Sigirr is a Toll like receptor/IL-1R family member. We have shown that Sigirr is not stable in response to IL-37 treatment. IL-37-induced Sigirr degradation is mediated by the ubiquitin-proteasome system, and the process is reversed by a deubiquitinase, USP13. However, the molecular mechanisms by which USP13 regulates Sigirr stability have not been revealed. In this study, we investigate the roles of glycogen synthesis kinase 3β (GSK3β) in Sigirr phosphorylation and stability. IL-37 stimulation induced Sigirr phosphorylation and degradation, as well as activation of GSK3β. Inhibition of GSK3β attenuated IL-37-induced Sigirr phosphorylation, while exogenous expressed GSK3β promoted Sigirr phosphorylation at threonine (T)372 residue. Sigirr association with GSK3β was detected. Amino acid residues 51-101 in GSK3β were identified as the Sigirr binding domain. These data indicate that GSK3β mediates IL-37-induced threonine phosphorylation of Sigirr. Further, we investigated the role of GSK3β-mediated phosphorylation of Sigirr in Sigirr degradation. Inhibition of GSK3β attenuated IL-37-induced Sigirr degradation, while T372 mutant of Sigirr was resistant to IL-37-mediated degradation. Furthermore, inhibition of Sigirr phosphorylation prevented Sigirr internalization and association with USP13, suggesting GSK3β promotes Sigirr degradation through disrupting Sigirr association with USP13.
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Affiliation(s)
- Lian Li
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Jianxin Wei
- Department of Medicine, The University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Tomeka L Suber
- Department of Medicine, The University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Qinmao Ye
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Jiaxing Miao
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Shuang Li
- Department of Medicine, The University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Sarah J Taleb
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Kevin C Tran
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Arya S Tamaskar
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Jing Zhao
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA.,Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Yutong Zhao
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA.,Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
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4
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Zhang Z, Zhang J, He P, Han J, Sun C. Interleukin-37 suppresses hepatocellular carcinoma growth through inhibiting M2 polarization of tumor-associated macrophages. Mol Immunol 2020; 122:13-20. [PMID: 32278133 DOI: 10.1016/j.molimm.2020.03.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 03/16/2020] [Accepted: 03/17/2020] [Indexed: 02/07/2023]
Abstract
Interleukin (IL)-37 has anti-tumor effects in hepatocellular carcinoma (HCC). Evidence shows that tumor-associated macrophages (TAMs) promote tumor progression. This study was designed to investigate the functional role of IL-37-mediated polarization of TAMs in HCC progression. HCC patient-derived TAMs were transfected with lentiviruses expressing IL-37 (LV-IL-37) and IL-37 siRNA and then the conditioned medium from TAMs were used to culture HCC cells (HepG2 and Huh-7). The phenotype of the macrophages was evaluated by detecting M1- or M2- type specific markers and cytokines. Cell proliferation, migration, and invasion were assessed. A tumor xenograft mouse model was generated with a subcutaneous injection of a mixture of HepG2 cells and TAMs/LV-IL-37. HCC patient-derived PBMCs showed M2 polarization and decreased IL-37 expression. Furthermore, IL-37 promoted TAMs polarization from M2 to M1 subtype through inhibiting the IL-6/STAT3 signaling. Moreover, IL-6 upregulation by recombinant human IL-6 (rhIL-6) blocked the IL-37 overexpression-mediated inhibition of HCC cell proliferation, migration, and invasion. In addition, IL-37 overexpression in HCC patient-derived TAMs inhibited tumor growth in vivo. Collectively, IL-37 suppresses HCC growth through inhibiting M2 polarization of TAMs via regulating the IL-6/STAT3 pathway.
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Affiliation(s)
- Zhihao Zhang
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Jingwen Zhang
- Henan Institute of Respiratory Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Ping He
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Jingjing Han
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Changyu Sun
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
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5
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Mei Y, Zhu Y, Teo HY, Liu Y, Song Y, Lim HY, Binte Hanafi Z, Angeli V, Liu H. The indirect antiangiogenic effect of IL-37 in the tumor microenvironment. J Leukoc Biol 2020; 107:783-796. [PMID: 32125036 DOI: 10.1002/jlb.3ma0220-207rr] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 02/10/2020] [Accepted: 02/12/2020] [Indexed: 01/28/2023] Open
Abstract
IL-37, a newly identified IL-1 family cytokine, has been shown to play an important role in inflammatory diseases, autoimmune diseases, and carcinogenesis. IL-37 has been suggested to suppress tumoral angiogenesis, whereas some publications showed that IL-37 promoted angiogenesis through TGF-β signaling in both physiologic and pathologic conditions. Therefore, the function of IL-37 in tumoral angiogenesis is not clear and the underlying mechanism is not known. In this current study, we investigated the direct role of IL-37 on endothelial cells, as well as its indirect effect on angiogenesis through functioning on tumor cells both in vitro and in vivo. We found that IL-37 treatment directly promoted HUVEC migration and tubule formation, indicating IL-37 as a proangiogenic factor. Surprisingly, the supernatants from IL-37 overexpressing tumor cell line promoted HUVEC apoptosis and inhibited its migration and tubule formation. Furthermore, we demonstrated that IL-37 suppressed tumor angiogenesis in a murine orthotopic hepatocellular carcinoma model, suggesting its dominant antiangiogenesis role in vivo. Moreover, microarray and qPCR analysis demonstrated that IL-37 reduced the expressions of proangiogenic factors and increased the expressions of antiangiogenic factors by tumor cells. Matrix metalloproteinase (MMP)2 expression was significantly decreased by IL-37 in both cell lines and murine tumor models. MMP9 and vascular endothelial growth factor expressions were also reduced in murine tumors overexpressing IL-37, as well as in cell lines overexpressing IL-37 under hypoxic conditions. In conclusion, although IL-37 could exert direct proangiogenic effects on endothelial cells, it plays an antiangiogenic role via modulating proangiogenic and antiangiogenic factor expressions by tumor cells in the tumor microenvironment.
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Affiliation(s)
- Yu Mei
- Immunology Programme, Life Sciences Institute and Department of Microbiology and Immunology, National University of Singapore, Singapore, Singapore
| | - Ying Zhu
- Immunology Programme, Life Sciences Institute and Department of Microbiology and Immunology, National University of Singapore, Singapore, Singapore
| | - Huey Yee Teo
- Immunology Programme, Life Sciences Institute and Department of Microbiology and Immunology, National University of Singapore, Singapore, Singapore
| | - Yonghao Liu
- Immunology Programme, Life Sciences Institute and Department of Microbiology and Immunology, National University of Singapore, Singapore, Singapore
| | - Yuan Song
- Immunology Programme, Life Sciences Institute and Department of Microbiology and Immunology, National University of Singapore, Singapore, Singapore
| | - Hwee Ying Lim
- Immunology Programme, Life Sciences Institute and Department of Microbiology and Immunology, National University of Singapore, Singapore, Singapore
| | - Zuhairah Binte Hanafi
- Immunology Programme, Life Sciences Institute and Department of Microbiology and Immunology, National University of Singapore, Singapore, Singapore
| | - Veronique Angeli
- Immunology Programme, Life Sciences Institute and Department of Microbiology and Immunology, National University of Singapore, Singapore, Singapore
| | - Haiyan Liu
- Immunology Programme, Life Sciences Institute and Department of Microbiology and Immunology, National University of Singapore, Singapore, Singapore
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6
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Ouyang P, An W, Chen R, Zhang H, Chen D, Jiang E, Zhu W, Li P, Guo H, Chen Z, Wang S. IL-37 promotes cell apoptosis in cervical cancer involving Bim upregulation. Onco Targets Ther 2019; 12:2703-2712. [PMID: 31114224 PMCID: PMC6497894 DOI: 10.2147/ott.s201664] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 03/21/2019] [Indexed: 12/24/2022] Open
Abstract
Background: Growing evidence has indicated that interleukin-37 (IL-37) is a potential anticancer molecule that mainly plays an inhibiting role in different kinds of cancers, but data for the role of IL-37 on cell apoptosis in cancers remains rare. The present study aimed to explore the role of IL-37 in cell apoptosis in cervical cancer, and the involved apoptosis-related molecules. Methods: IL-37 was overexpressed by transfecting the pIRES2-EGFP-IL-37 plasmid in HeLa and C33A cells. Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) was performed to detect the mRNA expression of IL-37, Bcl-2, Bax and Bim. Western blotting was performed to detect the protein expression of IL-37 and Bim. Cell apoptosis was detected by flow cytometry. Results: IL-37 upregulated the mRNA expression levels of Bim by 138.40% for HeLa (P<0.05) and 58.95% for C33A (P<0.05), and increased the protein expression levels of BimL by 69.10% (P<0.05) and 56.66% (P<0.05) in HeLa and C33A, respectively. Overexpression of IL-37 increased the apoptosis rates by 152.86% for HeLa (P<0.01) and 25.4% for C33A (P<0.05). Knockdown of Bim by specific siRNA interference fragments (SiBim) reduced the apoptosis rates by 36.00% for HeLa (P<0.05) and 14.66% for C33A (P<0.05). Compared with the IL-37 overexpression group, the apoptosis rate in cotransfecting the IL-37 overexpression plasmid and SiBim group decreased by approximately 31% (P<0.05) and 24.35% (P<0.05) in HeLa and C33A, respectively. Conclusion: IL-37 upregulated Bim in cervical cancer cells. Furthermore, IL-37 can promote cervical cancer cell apoptosis, but Bim knockdown decreased this promotion through IL-37. Thus, IL-37 can promote cervical cancer cell apoptosis, which involve the upregulation of Bim.
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Affiliation(s)
- Ping Ouyang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Scientific Research Center, Guangdong Medical University, Dongguan, Guangdong Province 523808, People's Republic of China
| | - Weifang An
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Scientific Research Center, Guangdong Medical University, Dongguan, Guangdong Province 523808, People's Republic of China.,Pathology Department , Shenzhen Longhua District Central Hospital, Shenzhen, Guangdong Province, 518110, People's Republic of China
| | - Renhuai Chen
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Scientific Research Center, Guangdong Medical University, Dongguan, Guangdong Province 523808, People's Republic of China.,Pathology Department, Dongguan Tungwah Hospital, Dongguan, Guangdong Province, 523110, People's Republic of China
| | - He Zhang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Scientific Research Center, Guangdong Medical University, Dongguan, Guangdong Province 523808, People's Republic of China
| | - Danrui Chen
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Scientific Research Center, Guangdong Medical University, Dongguan, Guangdong Province 523808, People's Republic of China
| | - Enping Jiang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Scientific Research Center, Guangdong Medical University, Dongguan, Guangdong Province 523808, People's Republic of China.,Basic Medicine Department, Guangdong Medical University, Dongguan, Guangdong Province 523808, People's Republic of China
| | - Wei Zhu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Scientific Research Center, Guangdong Medical University, Dongguan, Guangdong Province 523808, People's Republic of China.,Basic Medicine Department, Guangdong Medical University, Dongguan, Guangdong Province 523808, People's Republic of China
| | - Peng Li
- Basic Medicine Department, Guangdong Medical University, Dongguan, Guangdong Province 523808, People's Republic of China
| | - Hongsheng Guo
- Basic Medicine Department, Guangdong Medical University, Dongguan, Guangdong Province 523808, People's Republic of China
| | - Zhangquan Chen
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Scientific Research Center, Guangdong Medical University, Dongguan, Guangdong Province 523808, People's Republic of China
| | - Sen Wang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Scientific Research Center, Guangdong Medical University, Dongguan, Guangdong Province 523808, People's Republic of China.,Basic Medicine Department, Guangdong Medical University, Dongguan, Guangdong Province 523808, People's Republic of China
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7
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Manning AA, Zhao L, Zhu Z, Xiao H, Redington CG, Ding VA, Stewart-Hester T, Bai Q, Dunlap J, Wakefield MR, Fang Y. IL-39 acts as a friend to pancreatic cancer. Med Oncol 2018; 36:12. [PMID: 30506430 DOI: 10.1007/s12032-018-1236-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Accepted: 11/26/2018] [Indexed: 12/13/2022]
Abstract
Pancreatic cancer is the most lethal digestive cancer and the fourth leading cause of cancer death in the US. IL-39, a heterodimer of p19 and EBI3, is a newly found cytokine and its role in the pathogenesis of neoplasia has not been studied yet. This study was designed to investigate the direct role of IL-39 in the growth of pancreatic cancer. Clonogenic survival assay, cell proliferation, and caspase-3 activity kits were used to evaluate the direct effects of IL-39 on cell survival, proliferation and apoptosis of the widely studied pancreatic cancer cell line MiaPaCa-2. We further investigated the possible molecular mechanisms by using RT-PCR and IHC. The percentage of colonies of pancreatic cancer cells increased significantly in the presence of IL-39. This was paralleled with the increase in the OD value of cancer cells in the presence of IL-39. Interestingly, the relative caspase-3 activity in cancer cells decreased significantly in the presence of IL-39. Furthermore, the pro-tumor effect of IL-39 on pancreatic cancer cells correlated with decreased anti-proliferative molecule p21.The anti-apoptotic effect of IL-39 correlated with decreased pro-apoptotic molecule TRAILR1. These results suggest that IL-39 favors growth of pancreatic cancer by promoting growth and inhibiting apoptosis of cancer cells. This suggests that IL-39 acts as a friend to pancreatic cancer. Thus, inhibition of effect of IL-39 on cells might be a promising strategy to treat pancreatic cancer.
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Affiliation(s)
- Alicia A Manning
- Department of Microbiology & Immunology, Des Moines University College of Osteopathic Medicine, Des Moines, IA, 50312, USA
| | - Lei Zhao
- Department of Respiratory Medicine, The 2nd People's Hospital of Hefei and Hefei Hospital Affiliated to Anhui Medical University, Hefei, China
| | - Ziwen Zhu
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Huaping Xiao
- Department of Microbiology & Immunology, Des Moines University College of Osteopathic Medicine, Des Moines, IA, 50312, USA
| | - Chase G Redington
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Vivi A Ding
- Department of Microbiology & Immunology, Des Moines University College of Osteopathic Medicine, Des Moines, IA, 50312, USA
| | - Theodore Stewart-Hester
- Department of Microbiology & Immunology, Des Moines University College of Osteopathic Medicine, Des Moines, IA, 50312, USA
| | - Qian Bai
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Jacob Dunlap
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Mark R Wakefield
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA
| | - Yujiang Fang
- Department of Microbiology & Immunology, Des Moines University College of Osteopathic Medicine, Des Moines, IA, 50312, USA.
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO, 65212, USA.
- Department of Microbiology, Immunology & Pathology, Des Moines University College of Osteopathic Medicine, Des Moines, IA, 50312, USA.
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8
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Mei Y, Liu H. IL-37: An anti-inflammatory cytokine with antitumor functions. Cancer Rep (Hoboken) 2018; 2:e1151. [PMID: 32935478 DOI: 10.1002/cnr2.1151] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 10/26/2018] [Accepted: 10/26/2018] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND IL-37 is a newly identified IL-1 family cytokine. Unlike other members in IL-1 family, IL-37 has been demonstrated to be an anti-inflammatory cytokine in many inflammatory and autoimmune diseases. IL-37 is regarded as a dual-function cytokine as both the extracellular and intracellular IL-37 are biologically functional. Extracellular IL-37 can bind to IL-18Rα and IL-1R8 to form a triple complex, regulating the downstream STAT3 and PTEN signaling. Intracellular IL-37 can interact with Smad3, translocate into nucleus, and regulate downstream target gene expressions. Recently, the role of IL-37 in tumor development has been extensively studied. RECENT FINDINGS IL-37 has been found to play an antitumor role in various types of tumors, such as non-small cell lung cancer, hepatocellular carcinoma, and renal cell carcinoma. Many mechanism studies have been carried out to elaborate the possible effects of IL-37 on tumor growth, immune responses, and tumor angiogenesis. More importantly, the function of IL-37 may be dependent on its concentration and receptor expression. It can form dimers at high concentrations to be inactivated, thus inhibiting its anti-inflammatory function. We focused on the role of IL-37 in various tumor types and provided the hypothesis regarding the underlying mechanisms. CONCLUSION IL-37 may affect tumor development through multiple mechanisms: (1) IL-37 directly influences tumor cell viability; (2) IL-37 regulates the immune response to promote the antitumor immunity; and (3) IL-37 suppresses tumor angiogenesis in the tumor microenvironment. Future studies are warranted to further investigate the mechanisms of these multifaceted functions of IL-37 in animal models and cancer patients.
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Affiliation(s)
- Yu Mei
- Immunology Programme, Life Sciences Institute and Department of Microbiology and Immunology, National University of Singapore, Singapore
| | - Haiyan Liu
- Immunology Programme, Life Sciences Institute and Department of Microbiology and Immunology, National University of Singapore, Singapore
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