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Kim MS, Kang JW, Jeon JS, Kim JK, Kim JW, Hong J, Yoon DY. IL-32θ gene expression in acute myeloid leukemia suppresses TNF-α production. Oncotarget 2015; 6:40747-61. [PMID: 26516703 PMCID: PMC4747366 DOI: 10.18632/oncotarget.5688] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 09/15/2015] [Indexed: 01/23/2023] Open
Abstract
The proinflammatory cytokine TNF-α is highly expressed in patients with acute myeloid leukemia (AML) and has been demonstrated to induce rapid proliferation of leukemic blasts. Thus suppressing the production of TNF-α is important because TNF-α can auto-regulate own expression through activation of NF-κB and p38 mitogen-activated protein kinase (MAPK). In this study, we focused on the inhibitory effect of IL-32θ on TNF-α production in acute myeloid leukemia. Approximately 38% of patients with AML express endogenous IL-32θ, which is not expressed in healthy individuals. Furthermore, plasma samples were classified into groups with or without IL-32θ; then, we measured proinflammatory cytokine TNF-α, IL-1β, and IL-6 levels. TNF-α production was not increased in patients with IL-32θ expression than that in the no-IL-32θ group. Using an IL-32θ stable expression system in leukemia cell lines, we found that IL-32θ attenuated phorbol 12-myristate 13-acetate (PMA)-induced TNF-α production. IL-32θ inhibited phosphorylation of p38 MAPK, inhibitor of κB (IκB), and nuclear factor κB (NF-κB), which are key positive regulators of TNF-α expression, and inhibited nuclear translocation of NF-κB. Moreover, the presence of IL-32θ attenuated TNF-α promoter activity and the binding of NF-κB with the TNF-α promoter. In addition, IL-32γ-induced TNF-α production has no correlation with inhibition of TNF-α via IL-32θ expression. Thus, IL-32θ may serve as a potent inhibitor of TNF-α in patients with AML.
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MESH Headings
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Blotting, Western
- Case-Control Studies
- Chromatin Immunoprecipitation
- Female
- Fluorescent Antibody Technique
- Gene Expression Regulation, Neoplastic
- Humans
- Immunoenzyme Techniques
- Interleukin-6/genetics
- Interleukin-6/metabolism
- Interleukins/genetics
- Interleukins/metabolism
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/metabolism
- Leukemia, Myeloid, Acute/pathology
- Male
- Middle Aged
- NF-kappa B/genetics
- NF-kappa B/metabolism
- Phosphorylation
- RNA, Messenger/genetics
- Real-Time Polymerase Chain Reaction
- Reverse Transcriptase Polymerase Chain Reaction
- Signal Transduction
- Tumor Cells, Cultured
- Tumor Necrosis Factor-alpha/antagonists & inhibitors
- Tumor Necrosis Factor-alpha/genetics
- Tumor Necrosis Factor-alpha/metabolism
- Young Adult
- p38 Mitogen-Activated Protein Kinases/genetics
- p38 Mitogen-Activated Protein Kinases/metabolism
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Affiliation(s)
- Man Sub Kim
- Department of Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul, Republic of Korea
| | - Jeong-Woo Kang
- Department of Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul, Republic of Korea
- Current address: Seegene Inc., Seoul, Korea
| | - Jae-Sik Jeon
- Department of Laboratory Medicine, Dankook University College of Medicine, Cheonan, Korea
| | - Jae Kyung Kim
- Dankook University College of Health Sciences, Department of Biomedical Laboratory Science, Cheonan, Korea
| | - Jong Wan Kim
- Department of Laboratory Medicine, Dankook University College of Medicine, Cheonan, Korea
| | - Jintae Hong
- College of Pharmacy, Medical Research Center, Chungbuk National University, Chungbuk, Korea
| | - Do-Young Yoon
- Department of Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul, Republic of Korea
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52
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Park GB, Hur DY, Kim YS, Lee HK, Yang JW, Kim D. TLR3/TRIF signalling pathway regulates IL-32 and IFN-β secretion through activation of RIP-1 and TRAF in the human cornea. J Cell Mol Med 2015; 19:1042-54. [PMID: 25754842 PMCID: PMC4420606 DOI: 10.1111/jcmm.12495] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Accepted: 10/20/2014] [Indexed: 01/07/2023] Open
Abstract
Toll-like receptor-3 (TLR3) and RNA helicase retinoic-acid-inducible protein-1 (RIG-I) serve as cytoplasmic sensors for viral RNA components. In this study, we investigated how the TLR3 and RIG-I signalling pathway was stimulated by viral infection to produce interleukin (IL)-32-mediated pro-inflammatory cytokines and type I interferon in the corneal epithelium using Epstein-Barr virus (EBV)-infected human cornea epithelial cells (HCECs/EBV) as a model of viral keratitis. Increased TLR3 and RIG-I that are responded to EBV-encoded RNA 1 and 2 (EBER1 and EBER2) induced the secretion of IL-32-mediated pro-inflammatory cytokines and IFN-β through up-regulation of TRIF/TRAF family proteins or RIP-1. TRIF silencing or TLR3 inhibitors more efficiently inhibited sequential phosphorylation of TAK1, TBK1, NF-κB and IRFs to produce pro-inflammatory cytokines and IFN-β than RIG-I-siRNA transfection in HCECs/EBV. Blockade of RIP-1, which connects the TLR3 and RIG-I pathways, significantly blocked the TLR3/TRIF-mediated and RIG-I-mediated pro-inflammatory cytokines and IFN-β production in HCECs/EBV. These findings demonstrate that TLR3/TRIF-dependent signalling pathway against viral RNA might be a main target to control inflammation and anti-viral responses in the ocular surface.
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Affiliation(s)
- Ga Bin Park
- Department of Anatomy, Inje University College of MedicineBusan, Korea
- Ocular Neovascular disease Research Center, Inje University Busan Paik HospitalBusan, Korea
| | - Dae Young Hur
- Department of Anatomy, Inje University College of MedicineBusan, Korea
- Ocular Neovascular disease Research Center, Inje University Busan Paik HospitalBusan, Korea
| | - Yeong Seok Kim
- Department of Anatomy, Inje University College of MedicineBusan, Korea
| | - Hyun-Kyung Lee
- Department of Internal Medicine, Inje University Busan Paik HospitalBusan, Korea
| | - Jae Wook Yang
- Ocular Neovascular disease Research Center, Inje University Busan Paik HospitalBusan, Korea
- Department of Ophthalmology, Inje University Busan Paik HospitalBusan, Korea
| | - Daejin Kim
- Department of Anatomy, Inje University College of MedicineBusan, Korea
- Ocular Neovascular disease Research Center, Inje University Busan Paik HospitalBusan, Korea
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53
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Yang Y, Wang Z, Zhou Y, Wang X, Xiang J, Chen Z. Dysregulation of over-expressed IL-32 in colorectal cancer induces metastasis. World J Surg Oncol 2015; 13:146. [PMID: 25889282 PMCID: PMC4414001 DOI: 10.1186/s12957-015-0552-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Accepted: 03/16/2015] [Indexed: 11/10/2022] Open
Abstract
Background Interleukin (IL)-32 is a described intracellular pluripotent pro-inflammatory mediator, characterized by the signaling of NF-κB and STAT3. Methods Our study investigated whether IL-32 expression has clinical significance in the metastases of colorectal cancer (CRC). A total of 70 CRC patients were enrolled, 47 cases of which were single CRC organic metastasis lesions while the rest of which were primary CRC lesions (T4NxM0). IL-32 expression was detected by immunohistochemistry, and the correlation between IL-32 expression and CRC metastases was analyzed. Results The positive rates of IL-32 in the CRC organic metastasis group were more severe than those in the primary CRC group (P < 0.05). The positive rate of IL-32 in primary CRC with lymph node metastasis was more severe than that of IL-32 in primary CRC without lymph node metastasis (P < 0.05). Conclusions The level of IL-32 expression could influence the N grade of CRC. Thus, IL-32 expression may stimulate the organic metastasis and the lymph node metastasis of CRC.
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Affiliation(s)
- Yi Yang
- Department of General Surgery, Huashan Hospital Affiliated to Fudan University, Floor 16, Building 2, 12 Wulumuqizhong Road, Shanghai, 200040, China.
| | - Zihao Wang
- Department of General Surgery, Huashan Hospital Affiliated to Fudan University, Floor 16, Building 2, 12 Wulumuqizhong Road, Shanghai, 200040, China.
| | - Yiming Zhou
- Department of General Surgery, Huashan Hospital Affiliated to Fudan University, Floor 16, Building 2, 12 Wulumuqizhong Road, Shanghai, 200040, China.
| | - Xiaoxiao Wang
- Department of General Surgery, Huashan Hospital Affiliated to Fudan University, Floor 16, Building 2, 12 Wulumuqizhong Road, Shanghai, 200040, China.
| | - Jianbin Xiang
- Department of General Surgery, Huashan Hospital Affiliated to Fudan University, Floor 16, Building 2, 12 Wulumuqizhong Road, Shanghai, 200040, China.
| | - Zongyou Chen
- Department of General Surgery, Huashan Hospital Affiliated to Fudan University, Floor 16, Building 2, 12 Wulumuqizhong Road, Shanghai, 200040, China.
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Abstract
Gallbladder carcinoma is the most common malignancy of the biliary tract and is associated with a very poor outcome. The aim of the present study was to investigate the effects of oxymatrine (OM) on gallbladder cancer cells and the possible mechanism of its effects. The effects of OM on the proliferation of gallbladder cancer cells (GBC-SD and SGC-996) were investigated using cell counting kit-8 and colony formation assays. Annexin V/propidium iodide double staining was performed to investigate whether OM could induce apoptosis in gallbladder cancer cells. The mitochondrial membrane potential (ΔΨm) and expression of apoptosis-associated proteins were evaluated to identify a mechanism for the effects of OM. In addition, the RNA expression of relevant genes was measured by qRT-PCR using the SYBR Green method. Finally, a subcutaneous implantation model was used to verify the effects of OM on tumor growth in vivo. We found that OM inhibited the proliferation of gallbladder cancer cells. In addition, Annexin V/propidium iodide double staining showed that OM induced apoptosis after 48 h and the ΔΨm decreased in a dose-dependent manner after OM treatment. Moreover, the activation of caspase-3 and Bax and downregulation of Bcl-2 and nuclear factor κB were observed in OM-treated cells. Finally, OM potently inhibited in-vivo tumor growth following subcutaneous inoculation of SGC-996 cells in nude mice. In conclusion, OM treatment reduced proliferation and induced apoptosis in gallbladder cancer cells, which suggests that this drug may serve as a novel candidate for adjuvant treatment in patients with gallbladder cancer.
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Zhou Y, Hu Z, Li N, Jiang R. Interleukin-32 stimulates osteosarcoma cell invasion and motility via AKT pathway-mediated MMP-13 expression. Int J Mol Med 2015; 35:1729-33. [PMID: 25846944 DOI: 10.3892/ijmm.2015.2159] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Accepted: 03/09/2015] [Indexed: 11/06/2022] Open
Abstract
As a pro-inflammatory cytokine, interleukin-32 (IL-32) is reported to play an important role in tumor development and progression. However, its effects on the invasion and motility of osteosarcoma cells remain elusive. The aim of the present study was to determine the molecular mechanisms of IL-32 in osteosarcoma cells using RT-PCR and western blot analysis. The results showed that IL-32 stimulation dose-dependently promoted the invasion and motility of osteosarcoma cells. Knockdown of endogenous IL-32 by siRNA inhibited osteosarcoma cell invasion and motility. Moreover, IL-32 induced the activation of AKT in a time-dependent manner. IL-32 stimulation was also capable of increasing the expression and secretion of matrix metalloproteinase (MMP)-13, which is involved in tumor invasion and metastasis. In addition, blockade of AKT activation suppressed IL-32-mediated invasion, motility and MMP-13 upregulation in osteosarcoma cells. Taken together, our results suggest that IL-32 stimulation promotes the invasion and motility of osteosarcoma cells, possibly via the activation of AKT and the upregulation of MMP-13 expression. Thus, IL-32 may serve as a marker for diagnosis, as well as for the treatment of osteosarcoma.
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Affiliation(s)
- Yanhong Zhou
- Department of Clinical Laboratory, The People's Hospital of Liuzhou, Liuzhou 545006, P.R. China
| | - Zhaohui Hu
- Department of Spine Surgery, The People's Hospital of Liuzhou, Liuzhou 545006, P.R. China
| | - Ningning Li
- Department of Spine Surgery, The People's Hospital of Liuzhou, Liuzhou 545006, P.R. China
| | - Renjie Jiang
- Department of Spine Surgery, The People's Hospital of Liuzhou, Liuzhou 545006, P.R. China
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56
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Lee DH, Hong JE, Yun HM, Hwang CJ, Park JH, Han SB, Yoon DY, Song MJ, Hong JT. Interleukin-32β ameliorates metabolic disorder and liver damage in mice fed high-fat diet. Obesity (Silver Spring) 2015; 23:615-22. [PMID: 25645248 DOI: 10.1002/oby.21001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Accepted: 11/19/2014] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Chronic excessive food intake leads to energy imbalance, resulting in hepatic steatosis and inflammation. Interleukin-32 (IL-32) is known to be a pro-inflammatory cytokine associated with chronic inflammation and cancer. Therefore, the relationship between IL-32 and chronic excessive food intake-induced liver disease was investigated. METHODS Male IL-32β transgenic and wild-type mice were fed a high-fat diet (HFD) for 15 weeks. They were compared with wild-type mice on a standard chow diet. Daily food intake, body and liver weight, serum biochemistry, histopathological analysis of the liver, and hepatic immune response were determined. RESULTS IL-32β mice on HFD showed lower lipid accumulation, reduced infiltration of immune cells, and lower production of pro-inflammatory cytokines in the liver. The expression of the peroxisome proliferator-activated receptor γ (PPARγ) was downregulated and the adenosine 50-monophosphate (AMP)-activated protein kinase (AMPK) was activated in the liver of IL-32β mice compared to wild-type mice. Furthermore, IL-32β over-expression activated the AMPK pathway and IL-32β downregulation inactivated the AMPK pathway in HepG2 cells under high-glucose conditions. CONCLUSIONS These data suggest that IL-32β modulates lipid accumulation through inhibition of PPARγ expression and AMPK activation.
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Affiliation(s)
- Dong Hun Lee
- College of Pharmacy, Chungbuk National University, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
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Interleukin-32γ attenuates ethanol-induced liver injury by the inhibition of cytochrome P450 2E1 expression and inflammatory responses. Clin Sci (Lond) 2015; 128:695-706. [DOI: 10.1042/cs20140576] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Alcohol abuse and alcoholism lead to alcoholic liver disease (ALD), which is a major type of chronic liver disease worldwide. Interleukin-32 (IL-32) is a novel cytokine involved in inflammation and cancer development. However, the role of IL-32 in chronic liver disease has not been reported. In the present paper, we tested the effect of IL-32γ on ethanol-induced liver injury in IL-32γ-overexpressing transgenic mice (IL-32γ mice) after chronic ethanol feeding. Male C57BL/6 and IL-32γ mice (10–12 weeks old) were fed on a Lieber–DeCarli diet containing 6.6% ethanol for 6 weeks. IL-32γ-transfected HepG2 and Huh7 cells, as well as primary hepatocytes from IL-32γ mice, were treated with or without ethanol. The hepatic steatosis and damage induced by ethanol administration were attenuated in IL-32γ mice. Ethanol-induced cytochrome P450 2E1 expression and hydrogen peroxide levels were decreased in the livers of IL-32γ mice, primary hepatocytes from IL-32γ mice and IL-32γ-overexpressing human hepatic cells. The ethanol-induced expression levels of cyclo-oxygenase-2 (COX-2) and IL-6 were reduced in the livers of IL-32γ mice. Because nuclear transcription factor κB (NF-κB) is a key redox transcription factor of inflammatory responses, we examined NF-κB activity. Ethanol-induced NF-κB activities were significantly lower in the livers of IL-32γ mice than in wild-type (WT) mice. Furthermore, reduced infiltration of natural killer cells, cytotoxic T-cells and macrophages in the liver after ethanol administration was observed in IL-32γ mice. These data suggest that IL-32γ prevents ethanol-induced hepatic injury via the inhibition of oxidative damage and inflammatory responses.
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58
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Significant association between IL-32 gene polymorphisms and susceptibility to endometrial cancer in Chinese Han women. Tumour Biol 2015; 36:5265-72. [PMID: 25663496 DOI: 10.1007/s13277-015-3186-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 01/27/2015] [Indexed: 01/27/2023] Open
Abstract
Interleukin-32 (IL-32), a pro-inflammatory chemokine, has been reported to be involved in inflammatory, infectious diseases and even cancers. This study aimed to investigate whether two genetic variants (rs28372698 and rs12934561) of IL-32 were associated with susceptibility to endometrial cancer (EC) in Chinese Han women by a hospital-based study with 272 EC patients and 337 healthy controls. Our results showed that the frequencies of TT genotype (P = 0.012, OR = 2.37, 95 % CI = 1.32-4.28) and T allele (P = 0.026, OR = 1.320, 95 % CI = 1.036-1.681) of rs28372698 in EC patients were significantly higher than controls. Clinical analyses indicated the TT genotype frequency was relevant to high clinical stage and cervical invasion. Furthermore, the frequencies of CC genotype (P = 0.0077, OR = 1.62, 95 % CI = 1.05-2.50) and C allele (P = 0.043, OR = 1.269, 95 % CI = 1.011-1.592) of rs12934561 were also significantly higher in EC patients than controls. Stratification analyses revealed that CC genotype was more frequent in endometrioid adenocarcinoma or EC without parametrial invasion. This study demonstrates that IL-32 gene polymorphisms are significantly associated with increased EC susceptibility in Chinese Han women.
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Park JS, Lee S, Jeong AL, Han S, Ka HI, Lim JS, Lee MS, Yoon DY, Lee JH, Yang Y. Hypoxia-induced IL-32β increases glycolysis in breast cancer cells. Cancer Lett 2015; 356:800-8. [DOI: 10.1016/j.canlet.2014.10.030] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 10/28/2014] [Accepted: 10/28/2014] [Indexed: 01/05/2023]
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Wang S, Chen F, Tang L. IL-32 promotes breast cancer cell growth and invasiveness. Oncol Lett 2014; 9:305-307. [PMID: 25435980 PMCID: PMC4246643 DOI: 10.3892/ol.2014.2641] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 09/30/2014] [Indexed: 11/05/2022] Open
Abstract
Interleukin (IL)-32 is a newly identified cytokine in humans and primates. It has been established that IL-32 may antagonize cancer growth. However, to the best of our knowledge, the direct effect of IL-32 on breast cancer cell growth has not yet been investigated. In addition, rodents lack the expression of IL-32; hence, the effects of IL-32 on breast cancer xenografts in nude mice have not been studied. The present study aimed to examine the potential regulatory effects of IL-32 on breast cancer cells in nude mice. The effects of IL-32 on tumor cell growth in cell cuture and a tumor xenograft model were investigated, as well as the effects of IL-32 on apoptosis. The effects of IL-32 on cell proliferation and apoptosis were investigated by MTT assay and TUNEL staining, respectively. The results revealed that IL-32 increases the proliferation rate of cancer cells and decreases the rate of apoptosis, In addition, IL-32 was found to enhance the growth of tumor xenografts in vivo. In summary, IL-32 may represent a useful therapeutic target for human breast cancer.
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Affiliation(s)
- Shouman Wang
- Department of Breast Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Feiyu Chen
- Department of Breast Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Lili Tang
- Department of Breast Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
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Allaeys I, Gymninova I, Canet-Jourdan C, Poubelle PE. IL-32γ delays spontaneous apoptosis of human neutrophils through MCL-1, regulated primarily by the p38 MAPK pathway. PLoS One 2014; 9:e109256. [PMID: 25275312 PMCID: PMC4183585 DOI: 10.1371/journal.pone.0109256] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2014] [Accepted: 09/09/2014] [Indexed: 12/21/2022] Open
Abstract
IL-32γ is a multifunctional cytokine involved in various inflammatory and auto-immune diseases in which neutrophils can affect the evolution of these diseases. To persist at inflammatory sites, neutrophils require inhibition of their rapid and constitutive apoptosis, an inhibitory effect that phlogogenic cytokines support. To date, the effects of IL-32γ on neutrophils remain unknown. We demonstrate that IL-32γ delays, in a dose-dependent manner, the spontaneous apoptosis of human blood neutrophils by activating mainly p38 MAPK through rapid p38 phosphorylation. PI3-K and ERK1/2 MAPK are also involved, but to a lesser extent. Most of cytokines that induce retardation of neutrophil apoptosis activate the expression of MCL-1 at both mRNA and protein levels. IL-32γ added to human blood neutrophils in vitro is associated with sustained levels of MCL-1 protein. This effect in neutrophils corresponds to a decrease of MCL-1 protein degradation without any effect on MCL-1 mRNA levels. The sustained levels of MCL-1 induced by IL-32γ are only abrogated by the p38β MAPK inhibitor SB202190. Additionally, IL-32γ induces a reduction in caspase 3 activity in neutrophils. In conclusion, IL-32γ affects human blood neutrophils in vitro by increasing their survival, suggesting that this cytokine could have profound effects on the deleterious functions of neutrophils in several diseases.
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Affiliation(s)
- Isabelle Allaeys
- Centre de Recherche en Rhumatologie et Immunologie (CRRI), Centre de Recherche du CHU de Québec, Département de Médecine, Université Laval, Québec, Canada
| | - Irina Gymninova
- Centre de Recherche en Rhumatologie et Immunologie (CRRI), Centre de Recherche du CHU de Québec, Département de Médecine, Université Laval, Québec, Canada
| | - Charlotte Canet-Jourdan
- Centre de Recherche en Rhumatologie et Immunologie (CRRI), Centre de Recherche du CHU de Québec, Département de Médecine, Université Laval, Québec, Canada
| | - Patrice E. Poubelle
- Centre de Recherche en Rhumatologie et Immunologie (CRRI), Centre de Recherche du CHU de Québec, Département de Médecine, Université Laval, Québec, Canada
- * E-mail:
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IL-32θ downregulates CCL5 expression through its interaction with PKCδ and STAT3. Cell Signal 2014; 26:3007-15. [PMID: 25280942 DOI: 10.1016/j.cellsig.2014.09.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 08/15/2014] [Accepted: 09/15/2014] [Indexed: 01/11/2023]
Abstract
Interleukin-32 (IL-32) exists in several isoforms and plays an important role in inflammatory response. Recently, we identified a new isoform, IL-32θ, and performed a microarray analysis to identify IL-32θ-regulated genes in THP-1 myelomonocytic cells. Upon stimulating IL-32θ-expressing THP-1 cells with phorbol myristate acetate (PMA), we found that the CCL5 transcript level was significantly reduced. We confirmed the downregulation of CCL5 protein expression by using an enzyme-linked immunosorbent assay (ELISA). Because STAT3 phosphorylation on Ser727 by PKCδ is reported to suppress CCL5 protein expression, we examined whether IL-32θ-mediated STAT3 Ser727 phosphorylation occurs through an interaction with PKCδ. In this study, we first demonstrate that IL-32θ interacts with PKCδ and STAT3 using co-immunoprecipitation (Co-IP) and pulldown assay. Moreover, STAT3 was rarely phosphorylated on Ser727 in the absence of IL-32θ, leading to the binding of STAT3 to the CCL5 promoter. These results indicate that IL-32θ, through its interaction with PKCδ, downregulates CCL5 expression by mediating the phosphorylation of STAT3 on Ser727 to render it transcriptionally inactive. Therefore, similar to what we have reported for IL-32α and IL-32β, our data from this study suggests that the newly identified IL-32θ isoform also acts as an intracellular modulator of inflammation.
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Yun HM, Kim JA, Hwang CJ, Jin P, Baek MK, Lee JM, Hong JE, Lee SM, Han SB, Oh KW, Choi DY, Yoon DY, Hong JT. Neuroinflammatory and Amyloidogenic Activities of IL-32β in Alzheimer's Disease. Mol Neurobiol 2014; 52:341-52. [PMID: 25159479 DOI: 10.1007/s12035-014-8860-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Accepted: 08/11/2014] [Indexed: 12/21/2022]
Abstract
Interleukin (IL)-32β can act as either pro-inflammatory or anti-inflammatory cytokines with being dependent on the status of disease development. Herein, we investigated whether IL-32β overexpression changes cytokine levels and affects amyloid-beta (Aβ)-induced pro-inflammation in the brain. IL-32β transgenic (Tg) mice and non-Tg mice were intracerebroventricularly infused with Aβ1-42 once a day for 14 days, and then cognitive function was assessed by the Morris water maze test and passive avoidance test. Our data showed that IL-32β Tg mice increased memory impairment, glia activation, amyloidogenesis, and neuroinflammation. The expression of glial fibrillary acid protein (GFAP), Iba1, and β-secretase 1 (BACE1) in the cortex and hippocampus was much higher in the Aβ1-42-infused IL-32β Tg mice brain. The activation of signal transducer and activator of transcription 3 (STAT3) and nuclear factor-kappa B (NF-κB) was much higher in Aβ1-42-infused IL-32β Tg mice brain. We also found that cytokines including IP-10, GM-CSF, JE, IL-13, and interferone-inducible T cell α chemoattractant (I-TAC) were elevated in Aβ1-42-infused IL-32β Tg mice brain. These results suggest that IL-32β could activate NF-κB and STAT3, and thus affect neuroinflammation as well as amyloidogenesis, leading to worsening memory impairment.
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Affiliation(s)
- Hyung-Mun Yun
- College of Pharmacy, Medical Research Center, Chungbuk National University, 12 Gaesin-dong, Heungduk-gu, Cheongju, Chungbuk, 361-763, South Korea
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Player A, Oguamanam T, Okanmelu J, Burrell K, Hollomon M. Preliminary characterization of IL32 in basal-like/triple negative compared to other types of breast cell lines and tissues. BMC Res Notes 2014; 7:501. [PMID: 25100201 PMCID: PMC4132244 DOI: 10.1186/1756-0500-7-501] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 07/31/2014] [Indexed: 02/08/2023] Open
Abstract
Background Triple negative breast cancer (TNBC) and often basal-like cancers are defined as negative for estrogen receptor, progesterone receptor and Her2 gene expression. Over the past few years an incredible amount of data has been generated defining the molecular characteristics of both cancers. The aim of these studies is to better understand the cancers and identify genes and molecular pathways that might be useful as targeted therapies. In an attempt to contribute to the understanding of basal-like/TNBC, we examined the Gene Expression Omnibus (GEO) public datasets in search of genes that might define basal-like/TNBC. The Il32 gene was identified as a candidate. Findings Analysis of several GEO datasets showed differential expression of IL32 in patient samples previously designated as basal and/or TNBC compared to normal and luminal breast samples. As validation of the GEO results, RNA and protein expression levels were examined using MCF7 and MDA MB231 cell lines and tissue microarrays (TMAs). IL32 gene expression levels were higher in MDA MB231 compared to MCF7. Analysis of TMAs showed 42% of TNBC tissues and 25% of the non-TNBC were positive for IL32, while non-malignant patient samples and all but one hyperplastic tissue sample demonstrated lower levels of IL32 protein expression. Conclusion Data obtained from several publically available GEO datasets showed overexpression of IL32 gene in basal-like/TNBC samples compared to normal and luminal samples. In support of these data, analysis of TMA clinical samples demonstrated a particular pattern of IL32 differential expression. Considered together, these data suggest IL32 is a candidate suitable for further study.
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Affiliation(s)
- Audrey Player
- The Department of Biology, Texas Southern University, Houston, Texas 77004, USA.
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Bang BR, Kwon HS, Kim SH, Yoon SY, Choi JD, Hong GH, Park S, Kim TB, Moon HB, Cho YS. Interleukin-32γ Suppresses Allergic Airway Inflammation in Mouse Models of Asthma. Am J Respir Cell Mol Biol 2014; 50:1021-30. [DOI: 10.1165/rcmb.2013-0234oc] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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66
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Reducing Effect of IL-32α in the Development of Stroke Through Blocking of NF-κB, but Enhancement of STAT3 Pathways. Mol Neurobiol 2014; 51:648-60. [DOI: 10.1007/s12035-014-8739-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 05/05/2014] [Indexed: 02/04/2023]
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67
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The Role of IL-32 in Cutaneous T-Cell Lymphoma. J Invest Dermatol 2014; 134:1428-1435. [DOI: 10.1038/jid.2013.488] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 09/30/2013] [Accepted: 10/25/2013] [Indexed: 12/20/2022]
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Nold-Petry CA, Rudloff I, Baumer Y, Ruvo M, Marasco D, Botti P, Farkas L, Cho SX, Zepp JA, Azam T, Dinkel H, Palmer BE, Boisvert WA, Cool CD, Taraseviciene-Stewart L, Heinhuis B, Joosten LAB, Dinarello CA, Voelkel NF, Nold MF. IL-32 promotes angiogenesis. THE JOURNAL OF IMMUNOLOGY 2013; 192:589-602. [PMID: 24337385 DOI: 10.4049/jimmunol.1202802] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
IL-32 is a multifaceted cytokine with a role in infections, autoimmune diseases, and cancer, and it exerts diverse functions, including aggravation of inflammation and inhibition of virus propagation. We previously identified IL-32 as a critical regulator of endothelial cell (EC) functions, and we now reveal that IL-32 also possesses angiogenic properties. The hyperproliferative ECs of human pulmonary arterial hypertension and glioblastoma multiforme exhibited a markedly increased abundance of IL-32, and, significantly, the cytokine colocalized with integrin αVβ3. Vascular endothelial growth factor (VEGF) receptor blockade, which resulted in EC hyperproliferation, increased IL-32 three-fold. Small interfering RNA-mediated silencing of IL-32 negated the 58% proliferation of ECs that occurred within 24 h in scrambled-transfected controls. Reduction of IL-32 neither affected apoptosis (insignificant changes in Bak-1, Bcl-2, Bcl-xL, lactate dehydrogenase, annexin V, and propidium iodide) nor VEGF or TGF-β levels, but siIL-32-transfected adult and neonatal ECs produced up to 61% less NO, IL-8, and matrix metalloproteinase-9, and up to 3-fold more activin A and endostatin. In coculture-based angiogenesis assays, IL-32γ dose-dependently increased tube formation up to 3-fold; an αVβ3 inhibitor prevented this activity and reduced IL-32γ-induced IL-8 by 85%. In matrigel plugs loaded with IL-32γ, VEGF, or vehicle and injected into live mice, we observed the anticipated VEGF-induced increase in neocapillarization (8-fold versus vehicle), but unexpectedly, IL-32γ was equally angiogenic. A second signal such as IFN-γ was required to render cells responsive to exogenous IL-32γ; importantly, this was confirmed using a completely synthetic preparation of IL-32γ. In summary, we add angiogenic properties that are mediated by integrin αVβ3 but VEGF-independent to the portfolio of IL-32, implicating a role for this versatile cytokine in pulmonary arterial hypertension and neoplastic diseases.
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Affiliation(s)
- Claudia A Nold-Petry
- Ritchie Centre, Monash Institute of Medical Research, Monash University, Melbourne, Victoria 3168, Australia
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Interleukin-32β stimulates migration of MDA-MB-231 and MCF-7cells via the VEGF-STAT3 signaling pathway. Cell Oncol (Dordr) 2013; 36:493-503. [DOI: 10.1007/s13402-013-0154-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2013] [Indexed: 01/11/2023] Open
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Joosten LAB, Heinhuis B, Netea MG, Dinarello CA. Novel insights into the biology of interleukin-32. Cell Mol Life Sci 2013; 70:3883-92. [PMID: 23463238 PMCID: PMC11113358 DOI: 10.1007/s00018-013-1301-9] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 02/11/2013] [Accepted: 02/14/2013] [Indexed: 01/25/2023]
Abstract
Interleukin (IL)-32 is known as a proinflammatory cytokine that is likely involved in several diseases, including infections, chronic inflammation, and cancer. Since the first report in 2005, IL-32 has been the subject of numerous studies to unravel the biological function of this molecule. For example, silencing of endogenous IL-32 in primary or cell lines of human origin consistently suppressed responses to Toll-like receptors. The protein folding structure of the six isoforms of IL-32 does not resemble that of any classical cytokine and as of this writing, a specific IL-32 receptor has not been identified. Instead, we propose a mechanism by which exposure to extracellular IL-32 or overexpression of the molecule results in binding to intracellular partners that influences functions such as gene expression, cell death, or survival. As such, this review offers insights into the role of IL-32 in several diseases, host defense, inflammation, immune function, and cancer. Finally, possibilities to target IL-32 in several diseases are proposed.
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Affiliation(s)
- Leo A B Joosten
- Department of Medicine (463), Radboud University Nijmegen Medical Centre, Geert Grooteplein zuid 8, 6525 GA, Nijmegen, The Netherlands,
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RETRACTED: Acetyl-11-keto-beta-boswellic acid (AKBA) prevents human colonic adenocarcinoma growth through modulation of multiple signaling pathways. Biochim Biophys Acta Gen Subj 2013; 1830:4907-16. [DOI: 10.1016/j.bbagen.2013.06.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 06/15/2013] [Accepted: 06/29/2013] [Indexed: 02/07/2023]
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72
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Kim Y, Jung Y, Lee Y, Hwang C, Hwang J, Seok C, Seong H, Yoon N, Yeom S, Han S, Yoon D, Hong J. IL-32γ Inhibits Acetaminophen-Induced Acute Hepatotoxicity through Inactivation of NF-κB and Stat1 Signals. EUR J INFLAMM 2013. [DOI: 10.1177/1721727x1301100310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Although several studies have shown physiological functions of interleukin (IL)-32, the role of IL-32 in liver has not yet been reported. This study was initiated to examine the effects of IL-32γ on APAP-induced acute hepatic failure in IL-32γ transgenic mice. IL-32Γ overexpressing and non-transgenic mice received 500 mg/kg Acetoaminophen (APAP) intraperitoneally. Serum alanine transaminase and aspartate transaminase were significantly lower in the APAP treated IL-32γ overexpressing mice compared with those APAP-treated non-transgenic. IL-32γ markedly reduced a restricted area of the necrosis and inflammation. APAP-induced reduced glutathione depletion, induction of nitric oxide and lipid peroxidation, and cytochrome P4502E1 expression was significantly lowered in the IL-32γ overexpressing mice. Elevation of Kupffer cells and natural killer cells by APAP were reduced in the IL-32γ overexpressing mice. The expression of IL-1α, IL-1rα, macrophage inflammatory protein-2, C-C motif chemokine ligand 5 and tissue inhibitor of metalloproteinase-1 was increased by APAP in non-transgenic mice, and were lowered in the IL-32γ overexpressing mice. Moreover, APAP-induced nuclear transcription factor-kappa B (NF-κB) and signal transducers and activators of transcription 1 (STAT1) activities were greatly lowered in the IL-32γ overexpressing mice. The results indicate that IL-32γ could effectively inhibit drug-induced hepatic failure, and reduce the number of cytotoxic immune cells and pro-inflammatory cytokine production through reduced activities of NF-κB and STAT1. This might be attributable to lowering APAP-induced liver toxicity in IL-32γ overexpressing mice.
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Affiliation(s)
- Y.R. Kim
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Republic of Korea
| | - Y.S. Jung
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Y.H. Lee
- Center for Integrative Metabolic and Endocrine Research, Wayne State University School of Medicine, Detroit, USA
| | - C.J. Hwang
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Republic of Korea
| | - J.L. Hwang
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Republic of Korea
| | - C.H. Seok
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Republic of Korea
| | - H.C. Seong
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Republic of Korea
| | - N.Y. Yoon
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Republic of Korea
| | - S.Y. Yeom
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Republic of Korea
| | - S.B. Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Republic of Korea
| | - D.Y. Yoon
- Laboratory of Cytokine Immunology, Institute of Biomedical Science and Technology, College of Medicine, Konkuk University, Seoul, Republic of Korea
| | - J.T. Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Republic of Korea
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Abstract
PURPOSE OF REVIEW IL-32 is a recently described proinflammatory cytokine and has been reported to be involved in inflammatory diseases. The purpose of this review is to discuss the role of IL-32 in chronic rhinosinusitis (CRS). RECENT FINDINGS Two groups have recently reported data regarding the expression of IL-32 in CRS. IL-32 was induced by IFN-γ, TNF-α, dsRNA, and incubation with Th1 cells in primary nasal epithelial cells. IL-32 may be elevated in epithelial cells from patients with CRS without nasal polyps. IL-32 was significantly elevated in whole sinonasal tissue samples of nasal polyps compared with control tissue. IL-32 mRNA expression positively correlated with mRNA for CD3 and macrophage mannose receptor in nasal polyp tissue. Immunohistochemical studies demonstrated localization of IL-32 in epithelium, CD3(+) and CD68(+) cells, suggesting that epithelial cells, T cells, and macrophages are the major IL-32-producing cells in CRS. Activation of these cell types may trigger IL-32-related inflammation in CRS. SUMMARY Elevated levels of IL-32 may play a role in the pathogenesis of CRS through its role as a proinflammatory cytokine and as an endogenous enhancer of pathogen-dependent cytokine production.
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Yun HM, Oh JH, Shim JH, Ban JO, Park KR, Kim JH, Lee DH, Kang JW, Park YH, Yu D, Kim Y, Han SB, Yoon DY, Hong JT. Antitumor activity of IL-32β through the activation of lymphocytes, and the inactivation of NF-κB and STAT3 signals. Cell Death Dis 2013; 4:e640. [PMID: 23703385 PMCID: PMC3674373 DOI: 10.1038/cddis.2013.166] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Cytokine and activation of lymphocytes are critical for tumor growth. We investigated whether interleukin (IL)-32β overexpression changes other cytokine levels and activates cytotoxic lymphocyte, and thus modify tumor growth. Herein, IL-32β inhibited B16 melanoma growth in IL-32β-overexpressing transgenic mice (IL-32β mice), and downregulated the expressions of anti-apoptotic proteins (bcl-2, IAP, and XIAP) and cell growth regulatory proteins (Ki-67 antigen (Ki-67) and proliferating cell nuclear antigen (PCNA)), but upregulated the expressions of pro-apoptotic proteins (bax, cleaved caspase-3, and cleaved caspase-9). IL-32β also inhibited colon and prostate tumor growth in athymic nude mice inoculated with IL-32β-transfected SW620 colon or PC3 prostate cancer cells. The forced expression of IL-32β also inhibited cell growth in cultured colon and prostate cancer cells, and these inhibitory effects were abolished by IL-32 small interfering RNA (siRNA). IL-10 levels were elevated, but IL-1β, IL-6, and tumor necrosis factor-alpha (TNF-α) levels were reduced in the tumor tissues and spleens of IL-32β mice, and athymic nude mice. The number of cytotoxic T (CD8(+)) and natural killer (NK) cells in tumor tissues, spleen, and blood was significantly elevated in IL-32β mice and athymic nude mice inoculated with IL-32β-transfected cancer cells. Constituted activated NF-κB and STAT3 levels were reduced in the tumor tissues of IL-32β mice and athymic nude mice, as well as in IL-32β-transfected cultured cancer cells. These findings suggest that IL-32β inhibits tumor growth by increasing cytotoxic lymphocyte numbers, and by inactivating the NF-κB and STAT3 pathways through changing of cytokine levels in tumor tissues.
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Affiliation(s)
- H-M Yun
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Republic of Korea
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75
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Zhang L, Che C, Lin J, Liu K, Li DQ, Zhao G. TLR-mediated induction of proinflammatory cytokine IL-32 in corneal epithelium. Curr Eye Res 2013; 38:630-8. [PMID: 23534905 DOI: 10.3109/02713683.2012.763102] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE IL-32, a newly discovered cytokine, has been associated with a variety of inflammatory diseases. The role of innate immunity in regulation of IL-32 expression has not been elucidated. This study was to explore TLR-mediated induction of IL-32 and the inflammatory effects of IL-32 in corneal epithelium. METHODS Human corneal tissues and primary human corneal epithelial cells (HCECs) were treated with a variety of viral or bacterial components, as well as IL-32 without or with different TLR pathway inhibitors. The mRNA expression was determined by reverse transcription and real time PCR, and the protein levels were measured by ELISA and immunostaining. RESULTS IL-32 mRNA and protein were largely induced by specific microbial components, including polyinosinic-polycytidylic acid (polyI:C) and flagellin, the ligands to TLR3 and TLR5 respectively, in human corneal epithelium ex vivo and in vitro cultures. The polyI:C-induced IL-32 production was blocked by TLR3 antibody or TRIF inhibitory peptide, while flagellin-stimulated IL-32 was blocked by TLR5 antibody or MyD88 inhibitory peptide. Interestingly, IκB-α inhibitor (BAY11-7082) or nuclear factor kappa B (NF-κB) inhibitor (quinazoline) blocked NF-κB p65 protein nuclear translocation, and also suppressed IL-32 production induced by polyI:C or flagellin. When HCECs were treated with IL-32, we observed its stimulatory affects on inflammatory cytokines, TNF-α, IL-1ß and IL-8, at both mRNA and protein levels. CONCLUSION These findings demonstrate that IL-32 is induced by microbial ligands through TLR-mediated innate signaling pathways, suggesting an important role of corneal epithelium in inflammatory disease.
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Affiliation(s)
- Lili Zhang
- Department of Ophthalmology, the Affiliated Hospital of Medical College, Qingdao University, Qingdao, Shandong Province, China
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76
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Plantinga TS, Costantini I, Heinhuis B, Huijbers A, Semango G, Kusters B, Netea MG, Hermus ARMM, Smit JWA, Dinarello CA, Joosten LAB, Netea-Maier RT. A promoter polymorphism in human interleukin-32 modulates its expression and influences the risk and the outcome of epithelial cell-derived thyroid carcinoma. Carcinogenesis 2013; 34:1529-35. [DOI: 10.1093/carcin/bgt092] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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Guenin S, Mouallif M, Hubert P, Jacobs N, Krusy N, Duray A, Ennaji MM, Saussez S, Delvenne P. Interleukin-32 expression is associated with a poorer prognosis in head and neck squamous cell carcinoma. Mol Carcinog 2013; 53:667-73. [PMID: 23359495 DOI: 10.1002/mc.21996] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2012] [Revised: 12/07/2012] [Accepted: 12/08/2012] [Indexed: 12/29/2022]
Abstract
Head and neck squamous cell carcinoma (HNSCC) represent the sixth most common malignancy diagnosed worldwide. Patient's survival is low due the high frequency of tumor recurrence. Inflammation promotes carcinogenesis as well as the formation of metastasis. Indeed, proinflammatory mediators are known to stimulate the expression of specific transcription factors such as Snai1 and to increase the ability of tumor cells to migrate into distant organs. The atypical interleukin-32 (IL32) was mainly described to exacerbate inflammatory responses in rheumatoid arthritis and inflammatory bowel diseases. IL32 is expressed in various cancers but its role in HNSCC physiology is still unexplored. Here, we analyzed the expression of IL32 and its implication on HNSCC aggressiveness. We showed that patients with tumor expressing high amounts of IL32 exhibit decreased disease-free periods (20.5 mo vs. 41 mo, P = 0.0041) and overall survival (P = 0.0359) in comparison with individuals with weak IL32 tumor expression. This overexpression was negatively correlated with gender (P = 0.0292) and p53 expression (P = 0.0307). In addition, in vitro data linked IL32 expression to metastasis formation since IL32 inhibition decreased Snai1 expression and tumor cell migration in a Boyden chamber assay. Our data provide new insight into the role of IL32 in HNSCC aggressiveness.
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Affiliation(s)
- S Guenin
- Laboratory of Experimental Pathology, GIGA Cancer, University of Liège, Liège, Belgium
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Cao LP, Song JL, Yi XP, Li YX. Double inhibition of NF-κB and XIAP via RNAi enhances the sensitivity of pancreatic cancer cells to gemcitabine. Oncol Rep 2013; 29:1659-65. [PMID: 23354694 DOI: 10.3892/or.2013.2246] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Accepted: 12/28/2012] [Indexed: 11/05/2022] Open
Abstract
The majority of patients with pancreatic cancer are resistant to gemcitabine. One of the mechanisms involved is the anti-apoptotic ability of these cells. The median lethal dose (LD50) of gemcitabine for PANC-1 cells was higher than that for Mia PaCa-2 cells and the former had higher nuclear factor-κB (NF-κB) and X-linked inhibitor of apoptosis protein (XIAP) levels. NF-κB contributes to the inhibition of apoptosis by the downregulation of downstream genes, such as XIAP and Bcl-2 and it confers chemoresistance. The two cell lines were infected with NF-κB p65 small interfering RNA (siRNA). p65 protein was effectively downregulated accompanied by the downregulation of XIAP protein. The combination treatment with gemcitabine and p65 siRNA increased the apoptotic rates in both cell lines; however, this was not sufficient. XIAP is involved in apoptosis to a greater extent compated to Bcl-2. XIAP may serve as another factor affecting the sufficiency of chemotherapy. XIAP siRNA was designed to knockdown XIAP. Mia PaCa-2 and PANC-1 cells were co-infected with XIAP siRNA and p65 siRNA. XIAP and p65 proteins were effectively downregulated and the gemcitabine-induced apoptotic rates were significantly increased. These results suggest that XIAP and NF-κB are two important factors conferring the chemoresistance of pancreatic cancer cells, and that their downregulation via RNAi effectively enhances the chemosensitivity of pancreatic cancer cells to gemcitabine.
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Affiliation(s)
- Li-Ping Cao
- Department of General Surgery, Xiangya Hospital, Central South University, Hunan 410008, PR China
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Park ES, Yoo JM, Yoo HS, Yoon DY, Yun YP, Hong J. IL-32γ enhances TNF-α-induced cell death in colon cancer. Mol Carcinog 2012; 53 Suppl 1:E23-35. [DOI: 10.1002/mc.21990] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 11/07/2012] [Accepted: 11/15/2012] [Indexed: 02/03/2023]
Affiliation(s)
- Eun-Seok Park
- Division of Life Science; Department of Applied Biochemistry; College of Health and Biomedical Science; Konkuk University; Chungju Korea
| | - Jae-Myung Yoo
- College of Pharmacy; Institute of Drug Research and Development; Chungnam National University; Daejon Korea
| | - Hwan-Soo Yoo
- College of Pharmacy and Medical Research Center; Chungbuk National University; Cheongju Korea
| | - Do-Young Yoon
- Department of Bioscience and Biotechnology; Bio/Molecular Informatics Center; Konkuk University; Seoul Korea
| | - Yeo-Pyo Yun
- College of Pharmacy and Medical Research Center; Chungbuk National University; Cheongju Korea
| | - JinTae Hong
- College of Pharmacy and Medical Research Center; Chungbuk National University; Cheongju Korea
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Lee NJ, Choi DY, Song JK, Jung YY, Kim DH, Kim TM, Kim DJ, Kwon SM, Kim KB, Choi KE, Moon DC, Kim Y, Han SB, Hong JT. Deficiency of C–C chemokine receptor 5 suppresses tumor development via inactivation of NF–ĸB and inhibition of monocyte chemoattractant protein-1 in urethane-induced lung tumor model. Carcinogenesis 2012; 33:2520-8. [DOI: 10.1093/carcin/bgs265] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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81
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Differential oncogene-related gene expressions in myeloma cells resistant to prednisone and vincristine. Biomed Pharmacother 2012; 66:506-11. [PMID: 22681910 DOI: 10.1016/j.biopha.2012.02.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2012] [Accepted: 02/29/2012] [Indexed: 11/20/2022] Open
Abstract
Multidrug resistance in cancer may arise due to alterations in gene expression. In this study, sublines of drug-resistant multiple myeloma (MM) cells, namely RPMI-8226 and U-266, were examined for their differential oncogene-related gene expression levels and the relations to drug resistance were analyzed. Drug resistance was induced by application of the prednisone or vincristine using stepwise dose increments. XTT cytotoxicity assay was used for determination of resistance levels. Microarray analysis was carried out and the genes up- or downregulated more than two-folds were considered as significantly changed. Different types of oncogenes were altered in different drug-resistant RPMI-8226 and U-266 multiple myeloma sublines. The oncogenes which belong to Ras superfamily, especially Rho family of GTPases, were upregulated in prednisone-resistant MM cell lines whereas they were either downregulated or not changed in vincristine resistance. ETS and NF-κB2 are among transcription factors which were downregulated in prednisone-resistant cells. Transforming growth factor beta receptor (TGFß) was downregulated in prednisone-resistant MM cell lines while it was upregulated in vincristine-resistant cell lines. Different types of interleukin gene expressions were seen to be altered in resistant MM sublines whereas suppressors of cytokine signalling genes such as SOCS2, SOCS4 and WSB2 were all downregulated. In conclusion, it is seen that different drugs can induce totally different pathways leading to resistance in the same cancer cell lines. Every drug resistance should be evaluated separately. These facts must be considered in cancer chemotherapy and reversal of drug resistance.
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Song JK, Park MH, Choi DY, Yoo HS, Han SB, Yoon DY, Hong JT. Deficiency of C-C chemokine receptor 5 suppresses tumor development via inactivation of NF-κB and upregulation of IL-1Ra in melanoma model. PLoS One 2012; 7:e33747. [PMID: 22567084 PMCID: PMC3342329 DOI: 10.1371/journal.pone.0033747] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Accepted: 02/16/2012] [Indexed: 01/15/2023] Open
Abstract
To evaluate the relevance of C-C chemokine receptor type 5 (CCR5) expression and tumor development, we compared melanoma growth in CCR5 knockout (CCR5−/−) mice and wild type (CCR5+/+) mice. CCR5−/− mice showed reduced tumor volume, tumor weight, and increased survival rate when compared to CCR5+/+ mice. We investigated the activation of NF-κB since it is an implicated transcription factor in the regulation of genes involving cell growth, apoptosis, and tumor growth. Significant inhibition of DNA binding activity of NF-κB, and translocation of p50 and p65 into the nucleus through the inhibition of phosphorylation of IκB was found in the melanoma tissues of CCR5−/− mice compared to melanoma tissues of CCR5+/+ mice. NF-κB target apoptotic protein expression, such as cleaved caspase-3, cleaved PARP, and Bax, was elevated, whereas the survival protein expression levels, such as Bcl-2, C-IAP1, was decreased in the melanoma tissues of CCR5−/− mice. Interestingly, we found that the level of IL-1Ra, a tumor growth suppressive cytokine, was significantly elevated in tumor tissue and spleen of CCR5−/− mice compared to the level in CCR5+/+ mice. Moreover, infiltration of CD8+ cytotoxic T cell and CD57+ natural killer cells was significantly increased in melanoma tumor and spleen tissue of CCR5−/− mice compared to that of CCR5+/+ mice. Therefore, these results showed that CCR5 deficiency caused apoptotic cell death of melanoma through inhibition of NF-κB and upregulation of IL-1Ra.
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Affiliation(s)
- Ju Kyoung Song
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Mi Hee Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Dong-Young Choi
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Hwan Soo Yoo
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Sang Bae Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Do Young Yoon
- Department of Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul, Republic of Korea
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
- * E-mail:
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Park MH, Song MJ, Cho MC, Moon DC, Yoon DY, Han SB, Hong JT. Interleukin-32 enhances cytotoxic effect of natural killer cells to cancer cells via activation of death receptor 3. Immunology 2012; 135:63-72. [PMID: 22043900 DOI: 10.1111/j.1365-2567.2011.03513.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Studies have demonstrated that the anti-tumour effect of natural killer (NK) cells is successful for patients with several cancers. Although interleukin-32 (IL-32) is endogenously expressed in NK cells, cytolytic function of NK cells against cancer cells has not been fully demonstrated. In the present study, we found that the growth of cancer cells was suppressed when colon cancer cells or prostate cancer cells were co-cultured with NK-92 cells, an NK cell line. We also found that the expression of tumour necrosis factor receptor 2 and death receptor 3 (DR3) was increased in PC3 cells, and the expression of FAS and DR3 was increased in SW620 cells by co-culture with NK-92 cells. However, cancer cell growth inhibition and IL-32 expression were abolished when cancer cells were co-cultured with NK cells transfected with small interfering (si) RNA of IL-32. DR3 expression was also diminished by co-culture with IL-32-specific siRNA-transfected NK-92 cells. Expression of APO3L, a ligand of DR3, was elevated in NK cells that were co-cultured with cancer cells. It was also found that expression of apoptosis-related proteins such as cleaved caspase-3 and bax was increased in cancer cells co-cultured with NK-92 cells, but their expression was abolished by co-culture with IL-32 siRNA-transfected NK-92 cells. Moreover, knockdown of DR3 in co-culture of NK-92 cells with cancer cells by siRNA or antibodies of DR3 and APO3L reversed the growth inhibitory effect of NK-92 cells. In conclusion, our study showed that IL-32 enhanced the cytotoxic effect of NK-92 cells on the cancer cells through activation of DR3 and caspase-3.
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Affiliation(s)
- Mi H Park
- College of Pharmacy and Medical Research Centre, Chungbuk National University, Cheongju, Korea.
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Lee HJ, Liang ZL, Huang SM, Lim JS, Yoon DOY, Lee HJ, Kim JM. Overexpression of IL-32 is a novel prognostic factor in patients with localized clear cell renal cell carcinoma. Oncol Lett 2011; 3:490-496. [PMID: 22740938 DOI: 10.3892/ol.2011.511] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Accepted: 11/03/2011] [Indexed: 01/23/2023] Open
Abstract
Interleukin-32 (IL-32) is a proinflammatory cytokine that acts as a significant pathogenetic factor in various diseases and malignancies. However, the clinical effect of IL-32 expression in renal cell carcinoma (RCC) has not previously been investigated. The aim of the present study was to examine the significance of IL-32 overexpression in localized clear cell RCC (CCRCC). We examined 112 patients with localized CCRCC who underwent nephrectomy. The clinicopathological data were obtained by retrospective review and the expression levels of IL-32 were studied by immunohistochemistry. Tumors were classified according to staining intensity (0, no staining intensity; 1, weak; 2, intermediate; 3, strong). The cases with staining intensities from 0 to 2 comprised the IL-32 low-expression group (LEG), whereas those with a staining intensity of 3 comprised the IL-32 high-expression group (HEG). Correlations between IL-32 expression and clinicopathological parameters were determined. Staining intensities were determined for all cases as follows: 26 cases (23.2%) (score 0), 43 cases (38.4%) (score 1), 31 cases (27.7%) (score 2) and 12 cases (10.7%) (score 3). IL-32 HEG exhibited a higher recurrence rate compared to the IL-32 LEG (50 vs. 13%, P=0.001). For survival rates, the 5-year recurrence-free survival (RFS), disease-specific survival (DSS) and overall survival (OS) rates were lower in the IL-32 HEG group compared with the IL-32 LEG group (RFS, P=0.001; DSS, P<0.001; OS, P=0.026, respectively). Univariate analyses revealed that Fuhrman nuclear grade and a high IL-32 expression were significant prognostic factors for predicting RFS, DSS and OS in CCRCC, whereas multivariate analyses indicated that Fuhrman nuclear grade and high IL-32 expression were still independent risk factors. In conclusion, IL-32 overexpression was associated with high recurrence rates and low RFS, DSS and OS, indicating that it may be a novel prognostic factor for predicting outcomes in patients with CCRCC.
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Affiliation(s)
- Hyun-Jung Lee
- Department of Pathology, Chungnam National University School of Medicine, Daejeon
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