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Lin P, Yan Y, Zhang Z, Dong Q, Yi J, Li Q, Zhang A, Kong X. The γδ T cells dual function and crosstalk with intestinal flora in treating colorectal cancer is a promising area of study. Int Immunopharmacol 2023; 123:110733. [PMID: 37579540 DOI: 10.1016/j.intimp.2023.110733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/24/2023] [Accepted: 07/27/2023] [Indexed: 08/16/2023]
Abstract
The occurrence of colorectal cancer (CRC) is highly prevalent and severely affects human health, with the third-greatest occurrence and the second-greatest rate of death globally. Current CRC treatments, including surgery, radiotherapy, and chemotherapy, do not significantly improve CRC patients' survival rate and quality of life, so it is essential to develop new treatment strategies. Adoptive cell therapy and other immunotherapy came into being. Currently, there has been an especially significant emphasis on γδ T cells as being the primary recipient of adoptive cell therapy. The present investigation found that γδ T cells possess the capability to trigger cytotoxicity in CRC cells, secrete cytokines, recruit immune cells for the purpose of destroying cancer cells, and inhibit the progress of CRC indirectly. Nevertheless, It is possible for γδ T cells to initiate a storm of inflammatory factors and inhibit the immune response to promote the advancement of CRC. This review demonstrates a close association between the γδ T cell initiation pathway and their close association with the intestinal flora. It has been observed that the intestinal flora performs a vital function in facilitating the stimulation and functioning of γδ T cells. The tumor-fighting effect is mainly regulated by desulphurizing Vibrio and lactic acid bacteria. In contrast, the regulation of tumor-promoting impact is closely related to Clostridia and ETBF. This review systematically combs γδ T cell dual function and their relationship to intestinal flora, which offers a conceptual framework for the γδ T cell application for CRC therapies.
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Affiliation(s)
- Peizhe Lin
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yijing Yan
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Ze Zhang
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Qiutong Dong
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Jia Yi
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Qingbo Li
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Ao Zhang
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Xianbin Kong
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
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Xie Z, Zhang G, Liu R, Wang Y, Tsapieva AN, Zhang L, Han J. Heat-Killed Lacticaseibacillus paracasei Repairs Lipopolysaccharide-Induced Intestinal Epithelial Barrier Damage via MLCK/MLC Pathway Activation. Nutrients 2023; 15:nu15071758. [PMID: 37049598 PMCID: PMC10097264 DOI: 10.3390/nu15071758] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/30/2023] [Accepted: 03/31/2023] [Indexed: 04/14/2023] Open
Abstract
Intestinal epithelial barrier function is closely associated with the development of many intestinal diseases. Heat-killed Lacticaseibacillus paracasei (HK-LP) has been shown to improve intestinal health and enhance immunity. However, the function of HK-LP in the intestinal barrier is still unclear. This study characterized the inflammatory effects of seven HK-LP (1 μg/mL) on the intestinal barrier using lipopolysaccharide (LPS) (100 μg/mL)-induced Caco-2 cells. In this study, HK-LP 6105, 6115, and 6235 were selected, and their effects on the modulation of inflammatory factors and tight junction protein expression (claudin-1, zona occludens-1, and occludin) were compared. The effect of different cultivation times (18 and 48 h) was investigated in response to LPS-induced intestinal epithelial barrier dysfunction. Our results showed that HK-LP 6105, 6115, and 6235 improved LPS-induced intestinal barrier permeability reduction and transepithelial resistance. Furthermore, HK-LP 6105, 6115, and 6235 inhibited the pro-inflammatory factors (TNF-α, IL-1β, IL-6) and increased the expression of the anti-inflammatory factors (IL-4, IL-10, and TGF-β). HK-LP 6105, 6115, and 6235 ameliorated the inflammatory response. It inhibited the nuclear factor kappa B (NF-κB) signaling pathway-mediated myosin light chain (MLC)/MLC kinase signaling pathway by downregulating the Toll-like receptor 4 (TLR4)/NF-κB pathway. Thus, the results suggest that HK-LP 6150, 6115, and 6235 may improve intestinal health by regulating inflammation and TJ proteins. Postbiotics produced by these strains exhibit anti-inflammatory properties that can protect the intestinal barrier.
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Affiliation(s)
- Zhixin Xie
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Gongsheng Zhang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Rongxu Liu
- Heilongjiang Green Food Science Research Institute, Harbin 150030, China
| | - Yucong Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Anna N Tsapieva
- Department of Molecular Microbiology, FSBSI Institute of Experimental Medicine, Acad.,197376 St. Petersburg, Russia
| | - Lili Zhang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Jianchun Han
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
- Heilongjiang Green Food Science Research Institute, Harbin 150030, China
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Lian X, Zhang W, He-Yang J, Zhou X. Human milk oligosaccharide disialyllacto-n-tetraose protects human intestinal epithelium integrity and permeability against mast cell chymase-induced disruption by stabilizing ZO-1/FAK/P38 pathway of intestinal epithelial cell. Immunopharmacol Immunotoxicol 2022:1-10. [PMID: 36537314 DOI: 10.1080/08923973.2022.2160730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
CONTEXT Inflammatory bowel disease (IBD) is a chronic gut disease with intestinal-epithelium disruption. Mast cell (MC) has been discussed in IBD studies, but its subset MCTC (chymase/tryptase) and MC-chymase have not been well-explored extensively. Human-milk-oligosaccharide-Disialyllacto-N-Tetraose (DSLNT) was reported as an effective strategy to protect infants against IBD with unclear mechanism. OBJECTIVE This study was to examine the distribution of chymase-positive mast cells in the intestinal-epithelium-tissue of IBD infants, to explore the MC-chymase function on intestinal-epithelium, and to investigate the influences of DSLNT against MC-chymase-induced disruptions. MATERIALS AND METHODS The intestinal-biopsies (surgical-waste) of the infants with IBD or with intestinal-atresia (non-IBD) were paraffin-embedded for immunohistochemistry. In-situ intestinal-tissue model and in-vitro human-intestinal-epithelial-cell (Caco-2) model were established with or without the treatments of MC-chymase (50mU/mL), DSLNT (600 µM) and DSLNT + MC-chymase respectively. The tissue morphology analysis, cell proliferation assay, cell-gap-closure assessment, fluorescence-immunocytochemistry, western blot, trans-epithelial-electrical-resistance, cell-cycle and statistical analysis were applied. RESULTS There was an increased number of MCTC subset around the inflamed intestinal area in-vivo; MC-chymase caused intestinal-epithelial-barrier damage in-situ, decreased trans-epithelial-electrical-resistance of caco-2 cell monolayer in-vitro; while DSLNT protected epithelium against MC-chymase induced disruptions. MC-chymase reduced cell-viability, proliferation and migration, altered cell-cycle, down-regulated ZO-1, FAK, and P38 expressions, while DSLNT protected cells by impairing MC-chymase-induced interruptions. DSLNT can rescue ZO-1, FAK and P38 expressions and restore epithelial-cell integrity and cell cycle. CONCLUSIONS Chymase-positive MCs are involved in IBD progress. MC-chymase disrupts intracellular ZO-1/FAK/P38 signal pathway and cell-cell/cell-matrix contacts, while DSLNT protects intestinal-epithelium against MC-chymase to maintain the intestinal epithelium integrity.
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Affiliation(s)
- Xuejiao Lian
- The School of Pharmacy, Changzhou University, Jiangsu, China
| | - Wenting Zhang
- The School of Pharmacy, Changzhou University, Jiangsu, China.,Department of Pharmacy, Changzhou Children's Hospital, Changzhou, China
| | - Jingqiu He-Yang
- The School of Pharmacy, Changzhou University, Jiangsu, China
| | - Xiaoying Zhou
- The School of Pharmacy, Changzhou University, Jiangsu, China
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The Importance of CXCL1 in the Physiological State and in Noncancer Diseases of the Oral Cavity and Abdominal Organs. Int J Mol Sci 2022; 23:ijms23137151. [PMID: 35806156 PMCID: PMC9266754 DOI: 10.3390/ijms23137151] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/23/2022] [Accepted: 06/25/2022] [Indexed: 02/06/2023] Open
Abstract
CXCL1 is a CXC chemokine, CXCR2 ligand and chemotactic factor for neutrophils. In this paper, we present a review of the role of the chemokine CXCL1 in physiology and in selected major non-cancer diseases of the oral cavity and abdominal organs (gingiva, salivary glands, stomach, liver, pancreas, intestines, and kidneys). We focus on the importance of CXCL1 on implantation and placentation as well as on human pluripotent stem cells. We also show the significance of CXCL1 in selected diseases of the abdominal organs, including the gastrointestinal tract and oral cavity (periodontal diseases, periodontitis, Sjögren syndrome, Helicobacter pylori infection, diabetes, liver cirrhosis, alcoholic liver disease (ALD), non-alcoholic fatty liver disease (NAFLD), HBV and HCV infection, liver ischemia and reperfusion injury, inflammatory bowel disease (Crohn’s disease and ulcerative colitis), obesity and overweight, kidney transplantation and ischemic-reperfusion injury, endometriosis and adenomyosis).
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Mechanism of Neonatal Intestinal Injury Induced by Hyperoxia Therapy. J Immunol Res 2022; 2022:2316368. [PMID: 35071607 PMCID: PMC8769871 DOI: 10.1155/2022/2316368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 12/16/2021] [Indexed: 11/18/2022] Open
Abstract
High concentration oxygen is widely used in the treatment of neonates, which has a significant effect on improving blood oxygen concentration in neonates with respiratory distress. The adverse effects of hyperoxia therapy on the lung, retina, and neurodevelopment of newborns have been extensively studied, but less attention has been paid to intestinal damage caused by hyperoxia therapy. In this review, we focus on the physical, immune, and microorganism barriers of the intestinal tract and discuss neonatal intestinal tract damage caused by hyperoxia therapy and analyze the molecular mechanism of intestinal damage caused by hyperoxia in combination with necrotizing enterocolitis.
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Zhou G, Kong WS, Li ZC, Xie RF, Yu TY, Zhou X. Effects of Qing Chang Suppository Powder and its Ingredients on IL-17 Signal Pathway in HT-29 Cells and DSS-induced Mice. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 87:153573. [PMID: 34052543 DOI: 10.1016/j.phymed.2021.153573] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 05/25/2023]
Abstract
BACKGROUND Qingchang Suppository, a formula used for more than 30 years in Longhua Hospital, has shown satisfactory clinical effects on Ulcerative Colitis (UC). However, its therapeutic mechanism has not been fully elucidated. PURPOSE The study aims to investigate the effects of Qingchang Suppository powder (QCSP) and its ingredients by regulating the IL-17A signaling pathway which plays an important role in the development of UC. METHODS HPLC was used to analyze the main ingredients (Gallic acid, Indigo, Indirubin) in QCSP. HT-29 cells were induced by rhIL-17A and TNF-α, and IL-17A related protein expressions were determined by western blot. BALB/C mice were induced by 4% Dextran Sodium sulfate (DSS). The effects of QCSP and its ingredients were evaluated by measuring weight loss, disease activity index (DAI), colon length, histological analysis. Western blot was used for analysis of IL-17A and MAPK related proteins p-ERK, p-JNK, p-P38. Quantitative reverse transcription polymerase chain reaction (q-PCR) was used to detect the expression of IL-17A, HSP90 and ACT1 in colon tissue. Cytokines such as IL-17A, IL-1β, IFN-γ and TNF-α were determinated by enzyme-linked immunosorbent assay (ELISA). RESULTS QCSP had good therapeutic effect on DSS-induced colitis in mice. QCSP significantly relieved weight loss, restored colon length, repaired colon lesions, reduced histological scores and DAI, decreased TNF-α, IL-1β, IL-17 and IFN-γ contents, significantly suppressed the gene expressions of IL-17A, ACT1 and HSP90, and up-regulated the expressions of tight junction proteins like ZO-1 and Occludin. IL-17A pathway related proteins such as IL-17A, IL-17RA, HSP90, MAPKs, P-iκbα and iNOS were significantly increased in vitro and in vivo. CONCLUSIONS This paper reveals that QCSP inhibited the IL-17A signaling pathway in HT-29 cells and DSS induced mice, presenting a new mechanism of QCS on treating UC.
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Affiliation(s)
- Gui Zhou
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Wei-Song Kong
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Zhi-Cheng Li
- Pudong Hospital, Fudan University, Shanghai, China
| | - Rui-Fang Xie
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | | | - Xin Zhou
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China.
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Zhang L, Liu P, Wen W, Bai X, Zhang Y, Liu M, Wang L, Wu Y, Yuan Z, Zhou J. IL-17A contributes to myocardial ischemic injury by activating NLRP3 inflammasome in macrophages through AMPKα/p38MAPK/ERK1/2 signal pathway in mice. Mol Immunol 2019; 105:240-250. [DOI: 10.1016/j.molimm.2018.12.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 11/29/2018] [Accepted: 12/09/2018] [Indexed: 12/30/2022]
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Olivares-Morales MJ, De La Fuente MK, Dubois-Camacho K, Parada D, Diaz-Jiménez D, Torres-Riquelme A, Xu X, Chamorro-Veloso N, Naves R, Gonzalez MJ, Quera R, Figueroa C, Cidlowski JA, Vidal RM, Hermoso MA. Glucocorticoids Impair Phagocytosis and Inflammatory Response Against Crohn's Disease-Associated Adherent-Invasive Escherichia coli. Front Immunol 2018; 9:1026. [PMID: 29867993 PMCID: PMC5964128 DOI: 10.3389/fimmu.2018.01026] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 04/24/2018] [Indexed: 12/15/2022] Open
Abstract
Crohn’s disease (CD) is a chronic inflammatory bowel disorder characterized by deregulated inflammation triggered by environmental factors. Notably, adherent-invasive Escherichia coli (AIEC), a bacterium with the ability to survive within macrophages is believed to be one of such factors. Glucocorticoids are the first line treatment for CD and to date, it is unknown how they affect bactericidal and inflammatory properties of macrophages against AIEC. The aim of this study was to evaluate the impact of glucocorticoid treatment on AIEC infected macrophages. First, THP-1 cell-derived macrophages were infected with a CD2-a AIEC strain, in the presence or absence of the glucocorticoid dexamethasone (Dex) and mRNA microarray analysis was performed. Differentially expressed mRNAs were confirmed by TaqMan-qPCR. In addition, an amikacin protection assay was used to evaluate the phagocytic and bactericidal activity of Dex-treated macrophages infected with E. coli strains (CD2-a, HM605, NRG857c, and HB101). Finally, cytokine secretion and the inflammatory phenotype of macrophages were evaluated by ELISA and flow cytometry, respectively. The microarray analysis showed that CD2-a, Dex, and CD2-a + Dex-treated macrophages have differential inflammatory gene profiles. Also, canonical pathway analysis revealed decreased phagocytosis signaling by Dex and anti-inflammatory polarization on CD2-a + Dex macrophages. Moreover, amikacin protection assay showed reduced phagocytosis upon Dex treatment and TaqMan-qPCR confirmed Dex inhibition of three phagocytosis-associated genes. All bacteria strains induced TNF-α, IL-6, IL-23, CD40, and CD80, which was inhibited by Dex. Thus, our data demonstrate that glucocorticoids impair phagocytosis and induce anti-inflammatory polarization after AIEC infection, possibly contributing to the survival of AIEC in infected CD patients.
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Affiliation(s)
- Mauricio Javier Olivares-Morales
- Innate Immunity Laboratory, Immunology Program, Faculty of Medicine, Biomedical Sciences Institute, Universidad de Chile, Santiago, Chile
| | - Marjorie Katherine De La Fuente
- Innate Immunity Laboratory, Immunology Program, Faculty of Medicine, Biomedical Sciences Institute, Universidad de Chile, Santiago, Chile
| | - Karen Dubois-Camacho
- Innate Immunity Laboratory, Immunology Program, Faculty of Medicine, Biomedical Sciences Institute, Universidad de Chile, Santiago, Chile
| | - Daniela Parada
- Innate Immunity Laboratory, Immunology Program, Faculty of Medicine, Biomedical Sciences Institute, Universidad de Chile, Santiago, Chile
| | - David Diaz-Jiménez
- Innate Immunity Laboratory, Immunology Program, Faculty of Medicine, Biomedical Sciences Institute, Universidad de Chile, Santiago, Chile
| | - Alejandro Torres-Riquelme
- Innate Immunity Laboratory, Immunology Program, Faculty of Medicine, Biomedical Sciences Institute, Universidad de Chile, Santiago, Chile
| | - Xiaojiang Xu
- Laboratory of Integrative Bioinformatics, Department of Health and Human Services, National Institute of Environmental Health Sciences, National Institutes of Health, Durham, NC, United States
| | - Nayaret Chamorro-Veloso
- Enteropathogens Laboratory, Microbiology and Mycology Program, Faculty of Medicine, Biomedical Sciences Institute, Universidad de Chile, Santiago, Chile
| | - Rodrigo Naves
- Neuroimmunology Laboratory, Immunology Program, Faculty of Medicine, Biomedical Sciences Institute, Universidad de Chile, Santiago, Chile
| | - Maria-Julieta Gonzalez
- Cell Biology Program, Faculty of Medicine, Biomedical Sciences Institute, Universidad de Chile, Santiago, Chile
| | - Rodrigo Quera
- Gastroenterology Department, Clínica Las Condes, Santiago, Chile
| | | | - John Anthony Cidlowski
- Signal Transduction Laboratory, Department of Health and Human Services, National Institute of Environmental Health Sciences, National Institutes of Health, Durham, NC, United States
| | - Roberto Mauricio Vidal
- Enteropathogens Laboratory, Microbiology and Mycology Program, Faculty of Medicine, Biomedical Sciences Institute, Universidad de Chile, Santiago, Chile
| | - Marcela Alejandra Hermoso
- Innate Immunity Laboratory, Immunology Program, Faculty of Medicine, Biomedical Sciences Institute, Universidad de Chile, Santiago, Chile
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Xu T, Ying T, Wang L, Zhang XD, Wang Y, Kang L, Huang T, Cheng L, Wang L, Zhao Q. A native-like bispecific antibody suppresses the inflammatory cytokine response by simultaneously neutralizing tumor necrosis factor-alpha and interleukin-17A. Oncotarget 2017; 8:81860-81872. [PMID: 29137228 PMCID: PMC5669854 DOI: 10.18632/oncotarget.19899] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 07/12/2017] [Indexed: 01/16/2023] Open
Abstract
Anti-tumor necrosis factor (TNF) therapies are successful in the treatment of inflammatory disorders. However, some patients with rheumatoid arthritis (RA) fail to response anti-TNF drugs due to the compensation of other inflammatory signals. In this study, to reduce compensatory responses of interleukin-17A (IL-17A) during TNF-α inhibition, we generated an IgG-like bispecific antibodiy (bsAb) against TNF-α and IL-17A through a combination method of electrostatic Fc pairing and light chain crossover. This bsAb exhibited relatively high stability comparable to natural IgG antibodies, and retained the unaltered affinities to both of two targets. BsAb significantly decreased not only the expression level of neutrophil or Th17 chemokines, but also the secretion of IL-6/IL-8 on fibroblast-like synoviocytes (FLS) from a patient with RA. Meanwhile, TNF-α-mediated cellular cytotoxicity of fibroblasts was neutralized by bsAb. Importantly, we demonstrate that the combined blockade of TNF-α and IL-17A is more efficient than inhibition of either factor alone. Our results suggest the IgG-like anti-TNF-α/IL-17A bispecific molecule overcome the limited therapeutic responses using anti-TNF drugs. It may be a promising therapeutic agent for the treatment of autoimmune diseases.
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Affiliation(s)
- Tianshu Xu
- School of Life Science, Jilin University, Changchun, Jilin, China
| | - Tianlei Ying
- School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Lili Wang
- School of Basic Medical Sciences, Fudan University, Shanghai, China
| | | | - Ying Wang
- Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, China
| | - Lishan Kang
- Novo Nordisk Research Centre China, Beijing, China
| | - Tao Huang
- Novo Nordisk Research Centre China, Beijing, China
| | - Liang Cheng
- Novo Nordisk Research Centre China, Beijing, China
| | - Liping Wang
- School of Life Science, Jilin University, Changchun, Jilin, China
| | - Qi Zhao
- Faculty of Health Sciences, University of Macau, Taipa, Macau, China
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Zhao GH, Fang YQ, Ryan U, Guo YX, Wu F, Du SZ, Chen DK, Lin Q. Dynamics of Th17 associating cytokines in Cryptosporidium parvum-infected mice. Parasitol Res 2015; 115:879-87. [PMID: 26593737 DOI: 10.1007/s00436-015-4831-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 11/10/2015] [Indexed: 12/20/2022]
Abstract
Cryptosporidium parvum commonly inhabits the intestinal tract of animals and humans and can cause acute watery diarrhea and weight loss. However, host immune responses to Cryptosporidium infections are not fully understood. IL-17 (also called IL-17A) is a pro-inflammatory cytokine of Th17 cells that plays a role in the host response to Cryptosporidium baileyi infection. The present study examined levels of IL-17-specific messenger RNA (mRNA) and Th17 associating cytokines in C. parvum-infected immune-suppressed BALB/c mice using real-time quantitative PCR (qPCR). Levels of IL-17 protein were determined by ELISA. The results showed that levels of IL-17 mRNA and Th17 cell-related cytokines, namely TGF-β, IL-6, STAT-3, RORγt, IL-22, TNF-α, and IL-23, were significantly increased (P < 0.05) in gut-associated lymphoid tissue (GALT) and spleen. IL-17 protein levels in GALT were also significantly increased (P < 0.05) after infection. The present study suggested that Th17 cells play a role in host-C. parvum interaction. These results could inform future studies of the immune response against C. parvum infection in transient immunosuppressed populations.
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Affiliation(s)
- G H Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China
| | - Y Q Fang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China
| | - U Ryan
- School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA, 6150, Australia
| | - Y X Guo
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China
| | - F Wu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China
| | - S Z Du
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China
| | - D K Chen
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China.
| | - Q Lin
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, People's Republic of China.
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Xie Z, Qu Y, Leng Y, Sun W, Ma S, Wei J, Hu J, Zhang X. Human colon carcinogenesis is associated with increased interleukin-17-driven inflammatory responses. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:1679-89. [PMID: 25834404 PMCID: PMC4370916 DOI: 10.2147/dddt.s79431] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Inflammation is known to contribute to carcinogenesis in human colorectal cancer. Proinflammatory cytokine interleukin-17 (IL-17 or IL-17A) has been shown to play a critical role in colon carcinogenesis in mouse models. However, few studies have investigated IL-17A in human colon tissues. In the present study, we assessed IL-17-driven inflammatory responses in 17 cases of human colon adenocarcinomas, 16 cases of human normal colon tissues adjacent to the resected colon adenocarcinomas, ten cases of human ulcerative colitis tissues from biopsies, and eight cases of human colon polyps diagnosed as benign adenomas. We found that human colon adenocarcinomas contained the highest levels of IL-17A cytokine, which was significantly higher than the IL-17A levels in the adenomas, ulcerative colitis, and normal colon tissues (P<0.01). The levels of IL-17 receptor A (IL-17RA) were also the highest in human colon adenocarcinomas, followed by adenomas and ulcerative colitis. The increased levels of IL-17A and IL-17RA were accompanied with increased IL-17-driven inflammatory responses, including activation of extracellular signal-regulated kinase (ERK)1/2 and c-Jun N-terminal kinase (JNK) pathways, increase in expression of matrix metalloproteinase (MMP)9, MMP7, MMP2, B-cell lymphoma (Bcl-2), and cyclin D1, decrease in Bcl-2-associated X protein (BAX) expression, and increase in vascular endothelial growth factor (VEGF) and VEGF receptor (VEGFR) expression that were associated with increased angiogenesis. These findings suggest that IL-17 and its signaling pathways appear as promising new targets in the design and development of drugs for cancer prevention and treatment, particularly in colorectal cancer.
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Affiliation(s)
- Zhaohui Xie
- Department of Gastroenterology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
| | - Yine Qu
- Department of Histology and Embryology, Hebei United University School of Basic Medicine, Tangshan, Hebei, People's Republic of China
| | - Yanli Leng
- Department of Histology and Embryology, Hebei United University School of Basic Medicine, Tangshan, Hebei, People's Republic of China
| | - Wenxiu Sun
- Department of Histology and Embryology, Hebei United University School of Basic Medicine, Tangshan, Hebei, People's Republic of China
| | - Siqi Ma
- Department of Histology and Embryology, Hebei United University School of Basic Medicine, Tangshan, Hebei, People's Republic of China
| | - Jingbo Wei
- Department of Histology and Embryology, Hebei United University School of Basic Medicine, Tangshan, Hebei, People's Republic of China
| | - Jiangong Hu
- Department of Pathology, the Second Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, People's Republic of China
| | - Xiaolan Zhang
- Department of Gastroenterology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, People's Republic of China
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