1
|
Love M, Behrens-Bradley N, Ahmad A, Wertheimer A, Klotz S, Ahmad N. Plasma Levels of Secreted Cytokines in Virologically Controlled HIV-Infected Aging Adult Individuals on Long-Term Antiretroviral Therapy. Viral Immunol 2024; 37:202-215. [PMID: 38717822 PMCID: PMC11238844 DOI: 10.1089/vim.2023.0123] [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] [Indexed: 05/14/2024] Open
Abstract
HIV-infected (HIV+) aging adult individuals who have achieved undetectable viral load and improved CD4 T cell counts due to long-term antiretroviral therapy (ART) may continue to experience inflammation and immunosenescence. Therefore, we evaluated the plasma levels of proinflammatory and anti-inflammatory cytokines in 173 HIV+ aging adult individuals with age ranging from 22 to 81 years on long-term ART with viral load mostly <20 HIV RNA copies/mL and compared with 92 HIV-uninfected (HIV- or healthy controls) aging individuals. We found that the median levels of TNF-α, IFN-γ, IL-1β, IL-6, and IL-10 were higher (p < 0.001 to <0.0001) and IL-17 trended lower in HIV+ individuals than healthy controls. Increasing CD4 T cell counts in the HIV+ cohort did not significantly change the circulating cytokine levels, although levels of IL-1β increased. However, IL-17 levels significantly decreased with increasing CD4 counts in the healthy controls and yet unchanged in the HIV+ cohort. Of note, the levels of circulating IL-17 were significantly reduced comparatively in the healthy controls where the CD4 count was below 500, yet once above 500 the levels of CD4, IL-17 levels were comparable with the HIV+ cohort. With increasing CD8 T cell counts, the levels of these cytokines were not significantly altered, although levels of TNF-α, IFN-γ, and IL-6 declined, whereas IL-1β and IL-17 were slightly elevated. Furthermore, increasing age of the HIV+ cohort did not significantly impact the cytokine levels although a slight increase in TNF-α, IL-6, IL-10, and IL-17 was observed. Similarly, these cytokines were not significantly modulated with increasing levels of undetectable viral loads, whereas some of the HIV+ individuals had higher levels of TNF-α, IFN-γ, and IL-1β. In summary, our findings show that HIV+ aging adult individuals with undetectable viral load and restored CD4 T cell counts due to long-term ART still produce higher levels of both proinflammatory and anti-inflammatory cytokines compared with healthy controls, suggesting some level of inflammation.
Collapse
Affiliation(s)
- Maria Love
- Department of Immunobiology, University of Arizona, Tucson, Arizona, USA
| | | | - Aasim Ahmad
- Department of Immunobiology, University of Arizona, Tucson, Arizona, USA
| | - Anne Wertheimer
- Department of Medicine, College of Medicine, University of Arizona, Tucson, Arizona, USA
- Department of BIO5 Institute, University of Arizona, Tucson, Arizona, USA
| | - Stephen Klotz
- Department of Medicine, College of Medicine, University of Arizona, Tucson, Arizona, USA
| | - Nafees Ahmad
- Department of Immunobiology, University of Arizona, Tucson, Arizona, USA
| |
Collapse
|
2
|
Navaeiseddighi Z, Tripathi JK, Guo K, Wang Z, Schmit T, Brooks DR, Allen RA, Hur J, Mathur R, Jurivich D, Khan N. IL-17RA promotes pathologic epithelial inflammation in a mouse model of upper respiratory influenza infection. PLoS Pathog 2023; 19:e1011847. [PMID: 38060620 PMCID: PMC10729944 DOI: 10.1371/journal.ppat.1011847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 12/19/2023] [Accepted: 11/20/2023] [Indexed: 12/20/2023] Open
Abstract
The upper respiratory tract (nasopharynx or NP) is the first site of influenza replication, allowing the virus to disseminate to the lower respiratory tract or promoting community transmission. The host response in the NP regulates an intricate balance between viral control and tissue pathology. The hyper-inflammatory responses promote epithelial injury, allowing for increased viral dissemination and susceptibility to secondary bacterial infections. However, the pathologic contributors to influenza upper respiratory tissue pathology are incompletely understood. In this study, we investigated the role of interleukin IL-17 recetor A (IL-17RA) as a modulator of influenza host response and inflammation in the upper respiratory tract. We used a combined experimental approach involving IL-17RA-/- mice and an air-liquid interface (ALI) epithelial culture model to investigate the role of IL-17 response in epithelial inflammation, barrier function, and tissue pathology. Our data show that IL-17RA-/- mice exhibited significantly reduced neutrophilia, epithelial injury, and viral load. The reduced NP inflammation and epithelial injury in IL-17RA-/- mice correlated with increased resistance against co-infection by Streptococcus pneumoniae (Spn). IL-17A treatment, while potentiating the apoptosis of IAV-infected epithelial cells, caused bystander cell death and disrupted the barrier function in ALI epithelial model, supporting the in vivo findings.
Collapse
Affiliation(s)
- Zahrasadat Navaeiseddighi
- Dept of Oral Biology, College of Dentistry, University of Florida, Gainesville, Florida, United States of America
| | - Jitendra Kumar Tripathi
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
- Department of Geriatrics, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - Kai Guo
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Zhihan Wang
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Taylor Schmit
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - Delano R. Brooks
- Dept of Oral Biology, College of Dentistry, University of Florida, Gainesville, Florida, United States of America
| | - Reese A. Allen
- Dept of Oral Biology, College of Dentistry, University of Florida, Gainesville, Florida, United States of America
| | - Junguk Hur
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - Ramkumar Mathur
- Department of Geriatrics, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - Donald Jurivich
- Department of Geriatrics, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| | - Nadeem Khan
- Dept of Oral Biology, College of Dentistry, University of Florida, Gainesville, Florida, United States of America
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota, United States of America
| |
Collapse
|
3
|
He Y, Huang J, Li Q, Xia W, Zhang C, Liu Z, Xiao J, Yi Z, Deng H, Xiao Z, Hu J, Li H, Zu X, Quan C, Chen J. Gut Microbiota and Tumor Immune Escape: A New Perspective for Improving Tumor Immunotherapy. Cancers (Basel) 2022; 14:5317. [PMID: 36358736 PMCID: PMC9656981 DOI: 10.3390/cancers14215317] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/17/2022] [Accepted: 10/25/2022] [Indexed: 10/15/2023] Open
Abstract
The gut microbiota is a large symbiotic community of anaerobic and facultative aerobic bacteria inhabiting the human intestinal tract, and its activities significantly affect human health. Increasing evidence has suggested that the gut microbiome plays an important role in tumor-related immune regulation. In the tumor microenvironment (TME), the gut microbiome and its metabolites affect the differentiation and function of immune cells regulating the immune evasion of tumors. The gut microbiome can indirectly influence individual responses to various classical tumor immunotherapies, including immune checkpoint inhibitor therapy and adoptive immunotherapy. Microbial regulation through antibiotics, prebiotics, and fecal microbiota transplantation (FMT) optimize the composition of the gut microbiome, improving the efficacy of immunotherapy and bringing a new perspective and hope for tumor treatment.
Collapse
Affiliation(s)
- Yunbo He
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Jinliang Huang
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Qiaorong Li
- Department of Ultrasound, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - Weiping Xia
- Department of Intensive Care Medicine, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Chunyu Zhang
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Zhi Liu
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Jiatong Xiao
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Zhenglin Yi
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Hao Deng
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Zicheng Xiao
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Jiao Hu
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Huihuang Li
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Xiongbing Zu
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Chao Quan
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410013, China
| | - Jinbo Chen
- Department of Urology, Xiangya Hospital, Central South University, Changsha 410013, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410013, China
| |
Collapse
|
4
|
Wiche Salinas TR, Gosselin A, Raymond Marchand L, Moreira Gabriel E, Tastet O, Goulet JP, Zhang Y, Vlad D, Touil H, Routy JP, Bego MG, El-Far M, Chomont N, Landay AL, Cohen ÉA, Tremblay C, Ancuta P. IL-17A reprograms intestinal epithelial cells to facilitate HIV-1 replication and outgrowth in CD4+ T cells. iScience 2021; 24:103225. [PMID: 34712922 PMCID: PMC8531570 DOI: 10.1016/j.isci.2021.103225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 08/09/2021] [Accepted: 10/01/2021] [Indexed: 12/25/2022] Open
Abstract
The crosstalk between intestinal epithelial cells (IECs) and Th17-polarized CD4+ T cells is critical for mucosal homeostasis, with HIV-1 causing significant alterations in people living with HIV (PLWH) despite antiretroviral therapy (ART). In a model of IEC and T cell co-cultures, we investigated the effects of IL-17A, the Th17 hallmark cytokine, on IEC ability to promote de novo HIV infection and viral reservoir reactivation. Our results demonstrate that IL-17A acts in synergy with TNF to boost IEC production of CCL20, a Th17-attractant chemokine, and promote HIV trans-infection of CD4+ T cells and viral outgrowth from reservoir cells of ART-treated PLWH. Importantly, the Illumina RNA-sequencing revealed an IL-17A-mediated pro-inflammatory and pro-viral molecular signature, including a decreased expression of type I interferon (IFN-I)-induced HIV restriction factors. These findings point to the deleterious features of IL-17A and raise awareness for caution when designing therapies aimed at restoring the paucity of mucosal Th17 cells in ART-treated PLWH. IL-17A acts in synergy with TNF to enhance CCL20 production in IEC exposed to HIV IL-17A/TNF-activated IEC efficiently promote HIV trans-infection of CD4+ T cells IL-17A reprograms IEC to boost HIV outgrowth from CD4+ T cells of ART-treated PLWH IL-17A decreases the expression of IFN-I-induced HIV restriction factors in IEC
Collapse
Affiliation(s)
- Tomas Raul Wiche Salinas
- CHUM-Research Centre, 900 rue Saint-Denis, Tour Viger R, room R09.416, Montreal, QC H2X 0A9, Canada
- Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, QC, Canada
| | - Annie Gosselin
- CHUM-Research Centre, 900 rue Saint-Denis, Tour Viger R, room R09.416, Montreal, QC H2X 0A9, Canada
| | | | - Etiene Moreira Gabriel
- CHUM-Research Centre, 900 rue Saint-Denis, Tour Viger R, room R09.416, Montreal, QC H2X 0A9, Canada
- Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, QC, Canada
| | - Olivier Tastet
- CHUM-Research Centre, 900 rue Saint-Denis, Tour Viger R, room R09.416, Montreal, QC H2X 0A9, Canada
| | | | - Yuwei Zhang
- CHUM-Research Centre, 900 rue Saint-Denis, Tour Viger R, room R09.416, Montreal, QC H2X 0A9, Canada
| | - Dragos Vlad
- CHUM-Research Centre, 900 rue Saint-Denis, Tour Viger R, room R09.416, Montreal, QC H2X 0A9, Canada
| | - Hanane Touil
- CHUM-Research Centre, 900 rue Saint-Denis, Tour Viger R, room R09.416, Montreal, QC H2X 0A9, Canada
- Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, QC, Canada
| | - Jean-Pierre Routy
- Chronic Viral Illness Service and Division of Hematology, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Mariana G. Bego
- Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, QC, Canada
- Institut de Recherches Cliniques de Montréal, Montréal, QC, Canada
| | - Mohamed El-Far
- CHUM-Research Centre, 900 rue Saint-Denis, Tour Viger R, room R09.416, Montreal, QC H2X 0A9, Canada
| | - Nicolas Chomont
- CHUM-Research Centre, 900 rue Saint-Denis, Tour Viger R, room R09.416, Montreal, QC H2X 0A9, Canada
- Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, QC, Canada
| | - Alan L. Landay
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL, USA
| | - Éric A. Cohen
- Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, QC, Canada
- Institut de Recherches Cliniques de Montréal, Montréal, QC, Canada
| | - Cécile Tremblay
- CHUM-Research Centre, 900 rue Saint-Denis, Tour Viger R, room R09.416, Montreal, QC H2X 0A9, Canada
- Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, QC, Canada
| | - Petronela Ancuta
- CHUM-Research Centre, 900 rue Saint-Denis, Tour Viger R, room R09.416, Montreal, QC H2X 0A9, Canada
- Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, QC, Canada
- Corresponding author
| |
Collapse
|
5
|
Yan C, Lei Y, Lin TJ, Hoskin DW, Ma A, Wang J. IL-17RC is critically required to maintain baseline A20 production to repress JNK isoform-dependent tumor-specific proliferation. Oncotarget 2018; 8:43153-43168. [PMID: 28562353 PMCID: PMC5522135 DOI: 10.18632/oncotarget.17820] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2017] [Accepted: 04/17/2017] [Indexed: 01/13/2023] Open
Abstract
The IL-17/IL-17R axis has controversial roles in cancer, which may be explained by tumor-specific results. Here, we describe a novel molecular mechanism underlying IL-17RC-controlled tumor-specific proliferation. Triggered by IL-17RC knockdown (KD), B16 melanoma and 4T1 carcinoma cells inversely altered homeostatic tumor proliferation and tumor growth in vitro and in vivo. In contrast to the existing dogma that IL-17RC-dependent signaling activates the JNK pathway, IL-17RC KD in both tumor cell lines caused aberrant expression and activation of different JNK isoforms along with markedly diminished levels of the ubiquitin-editing enzyme A20. We demonstrated that differential up-regulation of JNK1 and JNK2 in the two tumor cell lines was responsible for the reciprocal regulation of c-Jun activity and tumor-specific proliferation. Furthermore, we showed that A20 reconstitution of IL-17RCKD clones with expression of full-length A20, but not a truncation-mutant, reversed aberrant JNK1/JNK2 activities and tumor-specific proliferation. Collectively, our study reveals a critical role of IL-17RC in maintaining baseline A20 production and a novel role of the IL-17RC-A20 axis in controlling JNK isoform-dependent tumor-specific homeostatic proliferation.
Collapse
Affiliation(s)
- Chi Yan
- Canadian Center for Vaccinology, Halifax, Nova Scotia, Canada.,Department of Microbiology and Immunology, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Yang Lei
- Canadian Center for Vaccinology, Halifax, Nova Scotia, Canada.,Department of Microbiology and Immunology, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Tong-Jun Lin
- Department of Microbiology and Immunology, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada.,Department of Pediatrics, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada.,IWK Health Centre, Halifax, Nova Scotia, Canada
| | - David W Hoskin
- Department of Microbiology and Immunology, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada.,Department of Pathology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Averil Ma
- Department of Medicine, University of California, San Francisco, California, USA
| | - Jun Wang
- Canadian Center for Vaccinology, Halifax, Nova Scotia, Canada.,Department of Microbiology and Immunology, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada.,Department of Pediatrics, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada.,IWK Health Centre, Halifax, Nova Scotia, Canada
| |
Collapse
|
6
|
Krueger JG, Brunner PM. Interleukin-17 alters the biology of many cell types involved in the genesis of psoriasis, systemic inflammation and associated comorbidities. Exp Dermatol 2017; 27:115-123. [PMID: 29152791 DOI: 10.1111/exd.13467] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2017] [Indexed: 02/06/2023]
Abstract
Psoriasis is a chronic, immune-mediated, systemic inflammatory disease that is defined by a characteristic skin reaction produced when elevated levels of inflammatory cytokines such as interleukin (IL)-17 alter the growth and differentiation of skin cells. The pathogenesis of comorbid conditions associated with psoriasis, including psoriatic arthritis, cardiovascular disease, obesity, metabolic syndrome, liver disorders, renal disease and depression, is also largely affected by inflammation. In this review, we examine the effect of IL-17 on the inflammatory pathways in a variety of different cell types, including keratinocytes, as well as epithelial cells of the colon, kidney, gut and liver. Additionally, we investigate the role of IL-17 in mediating the psoriasis-associated comorbidities detailed above.
Collapse
Affiliation(s)
- James G Krueger
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY, USA
| | - Patrick M Brunner
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY, USA
| |
Collapse
|
7
|
Polidarová L, Houdek P, Sumová A. Chronic disruptions of circadian sleep regulation induce specific proinflammatory responses in the rat colon. Chronobiol Int 2017; 34:1273-1287. [DOI: 10.1080/07420528.2017.1361436] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Lenka Polidarová
- Department of Neurohumoral Regulations, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Pavel Houdek
- Department of Neurohumoral Regulations, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Alena Sumová
- Department of Neurohumoral Regulations, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| |
Collapse
|
8
|
Intracranial IL-17A overexpression decreases cerebral amyloid angiopathy by upregulation of ABCA1 in an animal model of Alzheimer's disease. Brain Behav Immun 2017; 65:262-273. [PMID: 28526436 PMCID: PMC5537015 DOI: 10.1016/j.bbi.2017.05.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 05/15/2017] [Accepted: 05/16/2017] [Indexed: 01/18/2023] Open
Abstract
Neuroinflammation is a pervasive feature of Alzheimer's disease (AD) and characterized by activated microglia, increased proinflammatory cytokines and/or infiltrating immune cells. T helper 17 (Th17) cells are found in AD brain parenchyma and interleukin-17A (IL-17A) is identified around deposits of aggregated amyloid β protein (Aβ). However, the role of IL-17A in AD pathogenesis remains elusive. We overexpressed IL-17A in an AD mouse model via recombinant adeno-associated virus serotype 5 (rAAV5)-mediated intracranial gene delivery. AD model mice subjected to injection of a vehicle (PBS) or rAAV5 carrying the lacZ gene served as controls. IL-17A did not exacerbate neuroinflammation in IL-17A-overexpressing mice. We found that IL-17A overexpression markedly improved glucose metabolism, decreased soluble Aβ levels in the hippocampus and cerebrospinal fluid, drastically reduced cerebral amyloid angiopathy, and modestly but significantly improved anxiety and learning deficits. Moreover, the ATP-binding cassette subfamily A member 1 (ABCA1), which can transport Aβ from the brain into the blood circulation, significantly increased in IL-17A-overexpressing mice. In vitro treatment of brain endothelial bEnd.3 cells with IL-17A induced a dose-dependent increase in protein expression of ABCA1 through ERK activation. Our study suggests that IL-17A may decrease Aβ levels in the brain by upregulating ABCA1 in blood-brain barrier endothelial cells.
Collapse
|
9
|
Administration of Panobinostat Is Associated with Increased IL-17A mRNA in the Intestinal Epithelium of HIV-1 Patients. Mediators Inflamm 2015; 2015:120605. [PMID: 26696749 PMCID: PMC4678094 DOI: 10.1155/2015/120605] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 11/10/2015] [Accepted: 11/15/2015] [Indexed: 01/13/2023] Open
Abstract
Intestinal CD4+ T cell depletion is rapid and profound during early HIV-1 infection. This leads to a compromised mucosal barrier that prompts chronic systemic inflammation. The preferential loss of intestinal T helper 17 (Th17) cells in HIV-1 disease is a driver of the damage within the mucosal barrier and of disease progression. Thus, understanding the effects of new therapeutic strategies in the intestines has high priority. Histone deacetylase (HDAC) inhibitors (e.g., panobinostat) are actively under investigation as potential latency reversing agents in HIV eradication studies. These drugs have broad effects that go beyond reactivating virus, including modulation of immune pathways. We examined colonic biopsies from ART suppressed HIV-1 infected individuals (clinicaltrials.gov: NCT01680094) for the effects of panobinostat on intestinal T cell activation and on inflammatory cytokine production. We compared biopsy samples that were collected before and during oral panobinostat treatment and observed that panobinostat had a clear biological impact in this anatomical compartment. Specifically, we observed a decrease in CD69+ intestinal lamina propria T cell frequency and increased IL-17A mRNA expression in the intestinal epithelium. These results suggest that panobinostat therapy may influence the restoration of mucosal barrier function in these patients.
Collapse
|
10
|
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.
Collapse
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
| |
Collapse
|
11
|
Taooka Y, Ohe M, Tada M, Sutani A, Isobe T. Up-regulated integrinα4β1 on systemic lymphocytes and serum IL-17A in interstitial pneumonia. CLINICAL RESPIRATORY JOURNAL 2015; 10:722-730. [PMID: 25626362 DOI: 10.1111/crj.12277] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 10/12/2014] [Accepted: 01/20/2015] [Indexed: 01/09/2023]
Abstract
BACKGROUND AND AIMS In interstitial pneumonia (IP), lymphocytes play an important role in lung injury and the involvement of integrinα4β1 on leukocytes has previously been reported in animal models. Although the integrinα4β1 expression level is known to be up-regulated by inflammatory cytokines, the involvement of interleukin (IL)-17A is unclear. The purpose of this study is to address the possible involvement of integrinα4β1 on circulating lymphocytes and its correlation with serum IL-17A in interstitial lung diseases (ILDs). METHODS We measured the expression levels of integrinα4β1 on peripheral lymphocytes and the serum concentration of IL-17A and IL-23 in subjects with ILDs (n = 27; 14 males and 13 females, 66.7 ± 7.8 years old) and control subjects (n = 10; 5 males and 5 females, 66.6 ± 4.6 years old). RESULTS Recombinant IL-17A up-regulated expression levels of integrinα4β1 on healthy human lymphocytes in an in vitro experiment. Expression levels of integrinα4β1 were significantly higher in those with acute hypersensitivity pneumonitis (HP) and non-specific IP (NSIP) compared with control. Serum IL-17A concentration was also significantly increased in acute HP and NSIP subjects compared with control. And IL-17A concentration positively correlated with integrinα4β1 expression level (P < 0.05). Serum IL-23 was below the minimal detectable level in all subjects. CONCLUSIONS These findings suggest that up-regulated levels of integrinα4β1 on systemic lymphocytes and elevated serum IL-17A might be involved in the extravasation of lymphocytes in IP.
Collapse
Affiliation(s)
- Yasuyuki Taooka
- Division of Medical Oncology and Pulmonary Medicine, Department of Internal Medicine, Shimane University Faculty of Medicine, Izumo, Japan. .,Department of General Medicine, Aki-Ohta Hospital, Hiroshima, Japan.
| | - Miki Ohe
- Division of Medical Oncology and Pulmonary Medicine, Department of Internal Medicine, Shimane University Faculty of Medicine, Izumo, Japan
| | - Mitsuhiro Tada
- Division of Medical Oncology and Pulmonary Medicine, Department of Internal Medicine, Shimane University Faculty of Medicine, Izumo, Japan
| | - Akihisa Sutani
- Division of Medical Oncology and Pulmonary Medicine, Department of Internal Medicine, Shimane University Faculty of Medicine, Izumo, Japan
| | - Takeshi Isobe
- Division of Medical Oncology and Pulmonary Medicine, Department of Internal Medicine, Shimane University Faculty of Medicine, Izumo, Japan
| |
Collapse
|
12
|
Grine L, Dejager L, Libert C, Vandenbroucke RE. An inflammatory triangle in psoriasis: TNF, type I IFNs and IL-17. Cytokine Growth Factor Rev 2014; 26:25-33. [PMID: 25434285 DOI: 10.1016/j.cytogfr.2014.10.009] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2014] [Accepted: 10/17/2014] [Indexed: 12/12/2022]
Abstract
Psoriasis is a skin disease where various cytokines play a detrimental role, yet our understanding of the disease is still limited. TNF is a validated drug target in psoriasis and other autoimmune diseases, but its use is associated with side effects. Some paradoxical side effects of anti-TNF treatment are supposedly associated with type I IFNs, which are also implicated in the pathogenesis of psoriasis. Recently, the IL-23/IL-17 axis has been associated with psoriasis as well, and new drugs targeting this axis have already been developed. Findings suggest that these cytokines are interwoven. We discuss recent findings reinforcing the role of TNF, Type I IFNs and IL-17 in the pathogenesis of psoriasis and the apparent inflammatory interplay between these three cytokines.
Collapse
Affiliation(s)
- Lynda Grine
- Inflammation Research Center, VIB, Ghent, Belgium; Department Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Lien Dejager
- Inflammation Research Center, VIB, Ghent, Belgium; Department Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Claude Libert
- Inflammation Research Center, VIB, Ghent, Belgium; Department Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Roosmarijn E Vandenbroucke
- Inflammation Research Center, VIB, Ghent, Belgium; Department Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
| |
Collapse
|