1
|
Kim JY, Jee HG, Kim JY, Yong TS, Jeon SH. NF-κB p65 and TCF-4 interactions are associated with LPS-stimulated IL-6 secretion of macrophages. Biochem Biophys Rep 2024; 38:101659. [PMID: 38352245 PMCID: PMC10859262 DOI: 10.1016/j.bbrep.2024.101659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/16/2024] Open
Abstract
Proinflammatory cytokine plays a central role in host defense and acute inflammatory responses. Both positive and negative correlations of NF-κB and Wnt/β-catenin pathways have been reported depending on cell types in response to inflammatory stimuli for IL-6 cytokine production. Macrophages are vital to the regulation of immune responses and the development of inflammation, but the crosstalk between two pathways has not been elucidated so far in macrophages. We observed a positive cross-regulation between the NF-κB and Wnt/β-catenin pathways for IL-6 production in human macrophages. To verify the functional validity of this interaction, LY294002 or PNU74654, representative blockers of each pathway, were treated. IL-6 secretion was reduced to the basal level by both inhibitor treatments, even when stimulated by LPS. We also found that NF-κB p65 migrated to the nucleus and interacted with the transcription factor TCF-4 in macrophages upon LPS stimulation.
Collapse
Affiliation(s)
- Ji-Youn Kim
- Division of Oral & Maxillofacial Surgery, Department of Dentistry, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea
| | - Hyeon-Gun Jee
- Division of Oral & Maxillofacial Surgery, Department of Dentistry, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea
| | - Ju Yeong Kim
- Department of Tropical Medicine, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Tai-Soon Yong
- Department of Tropical Medicine, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Soung-Hoo Jeon
- Department of Tropical Medicine, Yonsei University College of Medicine, Seoul, 03722, South Korea
| |
Collapse
|
2
|
Yang QB, Zhang MY, Yang L, Wang J, Mi QS, Zhou JG. Deficiency of histone deacetylases 3 in macrophage alleviates monosodium urate crystals-induced gouty inflammation in mice. Arthritis Res Ther 2024; 26:96. [PMID: 38711064 PMCID: PMC11071232 DOI: 10.1186/s13075-024-03335-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 05/01/2024] [Indexed: 05/08/2024] Open
Abstract
BACKGROUND Gout is caused by monosodium urate (MSU) crystals deposition to trigger immune response. A recent study suggested that inhibition of Class I Histone deacetylases (HDACs) can significantly reduce MSU crystals-induced inflammation. However, which one of HDACs members in response to MSU crystals was still unknown. Here, we investigated the roles of HDAC3 in MSU crystals-induced gouty inflammation. METHODS Macrophage specific HDAC3 knockout (KO) mice were used to investigate inflammatory profiles of gout in mouse models in vivo, including ankle arthritis, foot pad arthritis and subcutaneous air pouch model. In the in vitro experiments, bone marrow-derived macrophages (BMDMs) from mice were treated with MSU crystals to assess cytokines, potential target gene and protein. RESULTS Deficiency of HDAC3 in macrophage not only reduced MSU-induced foot pad and ankle joint swelling but also decreased neutrophils trafficking and IL-1β release in air pouch models. In addition, the levels of inflammatory genes related to TLR2/4/NF-κB/IL-6/STAT3 signaling pathway were significantly decreased in BMDMs from HDAC3 KO mice after MSU treatment. Moreover, RGFP966, selective inhibitor of HDAC3, inhibited IL-6 and TNF-α production in BMDMs treated with MSU crystals. Besides, HDAC3 deficiency shifted gene expression from pro-inflammatory macrophage (M1) to anti-inflammatory macrophage (M2) in BMDMs after MSU challenge. CONCLUSIONS Deficiency of HDAC3 in macrophage alleviates MSU crystals-induced gouty inflammation through inhibition of TLR2/4 driven IL-6/STAT3 signaling pathway, suggesting that HDAC3 could contribute to a potential therapeutic target of gout.
Collapse
Affiliation(s)
- Qi-Bin Yang
- Department of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province, 637000, People's Republic of China.
- Henry Ford Immunology Program, Departments of Dermatology and Internal Medicine, Henry Ford Health System, 1 Ford Place, Detroit, MI, 48202, USA.
| | - Meng-Yun Zhang
- Department of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province, 637000, People's Republic of China
- Department of Integrated TCM and Western Medicine, General Hospital of Central Theater, PLA, Wuhan, Hubei Province, 430070, China
- Henry Ford Immunology Program, Departments of Dermatology and Internal Medicine, Henry Ford Health System, 1 Ford Place, Detroit, MI, 48202, USA
| | - Liu Yang
- Department of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province, 637000, People's Republic of China
| | - Jie Wang
- Henry Ford Immunology Program, Departments of Dermatology and Internal Medicine, Henry Ford Health System, 1 Ford Place, Detroit, MI, 48202, USA
| | - Qing-Sheng Mi
- Henry Ford Immunology Program, Departments of Dermatology and Internal Medicine, Henry Ford Health System, 1 Ford Place, Detroit, MI, 48202, USA.
| | - Jing-Guo Zhou
- Department of Rheumatology and Immunology, Clinical Medical College, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan Province, 610500, People's Republic of China.
| |
Collapse
|
3
|
Auroni TT, Arora K, Natekar JP, Pathak H, Elsharkawy A, Kumar M. The critical role of interleukin-6 in protection against neurotropic flavivirus infection. Front Cell Infect Microbiol 2023; 13:1275823. [PMID: 38053527 PMCID: PMC10694511 DOI: 10.3389/fcimb.2023.1275823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 10/27/2023] [Indexed: 12/07/2023] Open
Abstract
West Nile virus (WNV) and Japanese encephalitis virus (JEV) are emerging mosquito-borne flaviviruses causing encephalitis globally. No specific drug or therapy exists to treat flavivirus-induced neurological diseases. The lack of specific therapeutics underscores an urgent need to determine the function of important host factors involved in flavivirus replication and disease progression. Interleukin-6 (IL-6) upregulation has been observed during viral infections in both mice and humans, implying that it may influence the disease outcome significantly. Herein, we investigated the function of IL-6 in the pathogenesis of neurotropic flavivirus infections. First, we examined the role of IL-6 in flavivirus-infected human neuroblastoma cells, SK-N-SH, and found that IL-6 neutralization increased the WNV or JEV replication and inhibited the expression of key cytokines. We further evaluated the role of IL-6 by infecting primary mouse cells derived from IL-6 knockout (IL-6-/-) mice and wild-type (WT) mice with WNV or JEV. The results exhibited increased virus yields in the cells lacking the IL-6 gene. Next, our in vivo approach revealed that IL-6-/- mice had significantly higher morbidity and mortality after subcutaneous infection with the pathogenic WNV NY99 or JEV Nakayama strain compared to WT mice. The non-pathogenic WNV Eg101 strain did not cause mortality in WT mice but resulted in 60% mortality in IL-6-/- mice, indicating that IL-6 is required for the survival of mice after the peripheral inoculation of WNV or JEV. We also observed significantly higher viremia and brain viral load in IL-6-/- mice than in WT mice. Subsequently, we explored innate immune responses in WT and IL-6-/- mice after WNV NY99 infection. Our data demonstrated that the IL-6-/- mice had reduced levels of key cytokines in the serum during early infection but elevated levels of proinflammatory cytokines in the brain later, along with suppressed anti-inflammatory cytokines. In addition, mRNA expression of IFN-α and IFN-β was significantly lower in the infected IL-6-/- mice. In conclusion, these data suggest that the lack of IL-6 exacerbates WNV or JEV infection in vitro and in vivo by causing an increase in virus replication and dysregulating host immune response.
Collapse
Affiliation(s)
| | | | | | | | | | - Mukesh Kumar
- Department of Biology, College of Arts and Sciences, Georgia State University, Atlanta, GA, United States
| |
Collapse
|
4
|
Jung JY, Ahn MH, Kim JW, Suh CH, Han JH, Kim HA. Association between CCR2 and CCL2 expression and NET stimulation in adult-onset Still's disease. Sci Rep 2023; 13:12218. [PMID: 37500699 PMCID: PMC10374521 DOI: 10.1038/s41598-023-39517-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 07/26/2023] [Indexed: 07/29/2023] Open
Abstract
Adult-onset Still's disease (AOSD) is a systemic inflammatory disease characterized by the activation of monocyte-derived cells and the release of neutrophil extracellular traps (NET). C-C motif ligand (CCL) 2 is a chemoattractant that interacts with the C-C motif chemokine receptor (CCR) 2, resulting in monocyte recruitment and activation. CCL2 and CCR2 were measured with enzyme-linked immunosorbent assay (ELISA) at the serum level, and using immunohistochemical staining at the skin and lymph node tissues levels. THP-1 cell lysates were analyzed using western blot and ELISA after NET stimulation in patients with AOSD. Serum CCL2 level was higher in patients with AOSD than in patients with rheumatoid arthritis and healthy controls (HCs). In patients with AOSD, the percentage of CCL2-positive inflammatory cells in the skin tissues and CCR2-positive inflammatory cells in the lymph nodes increased, compared to that in HCs and in patients with reactive lymphadenopathy, respectively. NET induced in patients with AOSD enhanced the secretion of CCR2, higher CCR2 expression in monocytes, and the levels of interleukin (IL)-1β, IL-6, and IL-18 from THP-1 cells. Our findings suggest that upregulation of the CCL2-CCR2 axis may contribute to the clinical and inflammatory characteristics of AOSD.
Collapse
Affiliation(s)
- Ju-Yang Jung
- Department of Rheumatology, Ajou University School of Medicine, 164, World Cup-ro, Yeongtong-gu, Suwon, 16499, Republic of Korea
| | - Mi-Hyun Ahn
- Department of Rheumatology, Ajou University School of Medicine, 164, World Cup-ro, Yeongtong-gu, Suwon, 16499, Republic of Korea
| | - Ji-Won Kim
- Department of Rheumatology, Ajou University School of Medicine, 164, World Cup-ro, Yeongtong-gu, Suwon, 16499, Republic of Korea
| | - Chang-Hee Suh
- Department of Rheumatology, Ajou University School of Medicine, 164, World Cup-ro, Yeongtong-gu, Suwon, 16499, Republic of Korea
| | - Jae Ho Han
- Department of Pathology, Ajou University School of Medicine, 164, World Cup-ro, Yeongtong-gu, Suwon, 16499, Republic of Korea.
| | - Hyoun-Ah Kim
- Department of Rheumatology, Ajou University School of Medicine, 164, World Cup-ro, Yeongtong-gu, Suwon, 16499, Republic of Korea.
| |
Collapse
|
5
|
Tawarayama H, Umeki K, Inoue-Yanagimachi M, Takahashi N, Hasegawa H, Himori N, Tsuda S, Kunikata H, Akaike T, Nakazawa T. Glutathione trisulfide prevents lipopolysaccharide-induced retinal inflammation via inhibition of proinflammatory cytokine production in glial cells. Sci Rep 2023; 13:11513. [PMID: 37460786 DOI: 10.1038/s41598-023-38696-4] [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: 12/29/2022] [Accepted: 07/13/2023] [Indexed: 07/20/2023] Open
Abstract
We aimed to investigate the impact of glutathione trisulfide (GSSSG) on lipopolysaccharide (LPS)-induced inflammation in retinal glia. Inflammatory responses in mouse-derived glial cells and Wistar rat retinas were stimulated with administration of LPS. Cell survival and proinflammatory cytokine production were examined using the Calcein-AM assay, and reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and enzyme-linked immunosorbent assay (ELISA), respectively. Retinal microglia were visualized with immunohistochemistry for Iba1. Administration of LPS (10 µg/mL) or GSSSG (less than 100 µM) did not affect survival of cultured primary Müller cells and established microglial cells (BV-2). RT-qPCR and ELISA indicated that GSSSG inhibited LPS-induced gene upregulation and protein secretion of proinflammatory cytokines in these glial cells and rat retinas. GSSSG inhibited LPS-induced activation of TGF-β-activated kinase 1 (TAK1), which is an upstream kinase of NF-κB, in BV-2 cells. Finally, in vivo experiments indicated that intravitreal administration of GSSSG but not its relative glutathione disulfide (GSSG) inhibited LPS (500 ng)-induced accumulation of Iba1-immunopositive microglia in rat retinas. Taken together, GSSSG has the potential to prevent pathogenesis of inflammation-associated ocular diseases by inhibiting proinflammatory cytokine expression in retinal glial cells.
Collapse
Affiliation(s)
- Hiroshi Tawarayama
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
- Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan
| | - Kota Umeki
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
| | - Maki Inoue-Yanagimachi
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
| | - Naoki Takahashi
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
| | - Hirokazu Hasegawa
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
| | - Noriko Himori
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
- Department of Aging Vision Healthcare, Tohoku University Graduate School of Biomedical Engineering, Sendai, 980-8579, Japan
| | - Satoru Tsuda
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
| | - Hiroshi Kunikata
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
- Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan
| | - Takaaki Akaike
- Department of Environmental Medicine and Molecular Toxicology, Tohoku University Graduate School of Medicine, Sendai, 980-8575, Japan
| | - Toru Nakazawa
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan.
- Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan.
- Collaborative Program of Ophthalmic Drug Discovery, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan.
- Department of Advanced Ophthalmic Medicine, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan.
| |
Collapse
|
6
|
Akbari-Papkiadehi F, Saboor-Yaraghi AA, Farhadi E, Tahmasebi MN, Sharafat Vaziri A, Aghaghazvini L, Asgari M, Poursani S, Mansouri F, Jamshidi A, Mahmoudi M. Effect of curcumin on the expression of NOD2 receptor and pro-inflammatory cytokines in fibroblast-like synoviocytes (FLSs) of rheumatoid arthritis (RA) patients. Adv Rheumatol 2023; 63:27. [PMID: 37370181 DOI: 10.1186/s42358-023-00308-0] [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: 02/21/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Previous studies has shown that nucleotide-binding and oligomerization domain-containing protein 2 (NOD2) is expressed in Fibroblast-like synoviocytes (FLSs) of rheumatoid arthritis (RA) patients which is stimulated by muramyl dipeptide (MDP) present in the joint environment and induces inflammation via the NF-κB pathway. Also, other studies have shown that curcumin inhibits proliferation, migration, invasion, and Inflammation and on the other hand increases the apoptosis of RA FLSs. In this study, we aim to evaluate the effect of curcumin, a natural anti-inflammatory micronutrient, on the expression of NOD2 and inflammatory cytokines. METHODS Synovial membranes were collected from ten patients diagnosed with RA and ten individuals with traumatic injuries scheduled for knee surgery. The FLSs were isolated and treated with 40 μM curcumin alone or in combination with 20.3 μM MDP for 24 h. mRNA was extracted, and real-time PCR was performed to quantitatively measure gene expression levels of NOD2, p65, IL-6, TNF-α, and IL-1β. RESULTS The study findings indicate that administering MDP alone can significantly increase the mRNA expression levels of IL-6 and IL-1β in the trauma group and TNF-α in the RA group. Conversely, administering curcumin alone or in combination whit MDP can significantly reduce mRNA expression levels of P65 and IL-6 in FLSs of both groups. Moreover, in FLSs of RA patients, a single curcumin treatment leads to a significant reduction in NOD2 gene expression. CONCLUSION This study provides preliminary in vitro evidence of the potential benefits of curcumin as a nutritional supplement for RA patients. Despite the limitations of the study being an investigation of the FLSs of RA patients, the results demonstrate that curcumin has an anti-inflammatory effect on NOD2 and NF-κB genes. These findings suggest that curcumin could be a promising approach to relieve symptoms of RA.
Collapse
Affiliation(s)
- Fereshteh Akbari-Papkiadehi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, P.O. Box: 6446-14155, Tehran, Iran
- Rheumatology Research Center, Shariati Hospital, Tehran University of Medical Sciences, Kargar Ave., P.O. Box: 1411713137, Tehran, Iran
| | - Ali Akbar Saboor-Yaraghi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, P.O. Box: 6446-14155, Tehran, Iran.
| | - Elham Farhadi
- Rheumatology Research Center, Shariati Hospital, Tehran University of Medical Sciences, Kargar Ave., P.O. Box: 1411713137, Tehran, Iran
- Inflammation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Naghi Tahmasebi
- Division of Knee Surgery, Department of Orthopedics, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Arash Sharafat Vaziri
- Division of Knee Surgery, Department of Orthopedics, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Leila Aghaghazvini
- Department of Radiology, Tehran University of Medical Sciences, Shariati Hospital, Tehran, Iran
| | - Marzieh Asgari
- Rheumatology Research Center, Shariati Hospital, Tehran University of Medical Sciences, Kargar Ave., P.O. Box: 1411713137, Tehran, Iran
| | - Shiva Poursani
- Rheumatology Research Center, Shariati Hospital, Tehran University of Medical Sciences, Kargar Ave., P.O. Box: 1411713137, Tehran, Iran
| | - Fatemeh Mansouri
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, P.O. Box: 6446-14155, Tehran, Iran
| | - Ahmadreza Jamshidi
- Rheumatology Research Center, Shariati Hospital, Tehran University of Medical Sciences, Kargar Ave., P.O. Box: 1411713137, Tehran, Iran
| | - Mahdi Mahmoudi
- Rheumatology Research Center, Shariati Hospital, Tehran University of Medical Sciences, Kargar Ave., P.O. Box: 1411713137, Tehran, Iran.
- Inflammation Research Center, Tehran University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
7
|
Schmidt T, Dahlberg A, Berthold E, Król P, Arve-Butler S, Rydén E, Najibi SM, Mossberg A, Bengtsson AA, Kahn F, Månsson B, Kahn R. Synovial monocytes contribute to chronic inflammation in childhood-onset arthritis via IL-6/STAT signalling and cell-cell interactions. Front Immunol 2023; 14:1190018. [PMID: 37283752 PMCID: PMC10239926 DOI: 10.3389/fimmu.2023.1190018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/10/2023] [Indexed: 06/08/2023] Open
Abstract
Introduction Monocytes are key effector cells in inflammatory processes. We and others have previously shown that synovial monocytes in childhood-onset arthritis are activated. However, very little is known about how they contribute to disease and attain their pathological features. Therefore, we set out to investigate the functional alterations of synovial monocytes in childhood-onset arthritis, how they acquire this phenotype, and whether these mechanisms could be used to tailorize treatment. Methods The function of synovial monocytes was analysed by assays believed to reflect key pathological events, such as T-cell activation-, efferocytosis- and cytokine production assays using flow cytometry in untreated oligoarticular juvenile idiopathic arthritis (oJIA) patients (n=33). The effect of synovial fluid on healthy monocytes was investigated through mass spectrometry and functional assays. To characterize pathways induced by synovial fluid, we utilized broad-spectrum phosphorylation assays and flow cytometry, as well as inhibitors to block specific pathways. Additional effects on monocytes were studied through co-cultures with fibroblast-like synoviocytes or migration in transwell systems. Results Synovial monocytes display functional alterations with inflammatory and regulatory features, e.g., increased ability to induce T-cell activation, resistance to cytokine production following activation with LPS and increased efferocytosis. In vitro, synovial fluid from patients induced the regulatory features in healthy monocytes, such as resistance to cytokine production and increased efferocytosis. IL-6/JAK/STAT signalling was identified as the main pathway induced by synovial fluid, which also was responsible for a majority of the induced features. The magnitude of synovial IL-6 driven activation in monocytes was reflected in circulating cytokine levels, reflecting two groups of low vs. high local and systemic inflammation. Remaining features, such as an increased ability to induce T-cell activation and markers of antigen presentation, could be induced by cell-cell interactions, specifically via co-culture with fibroblast-like synoviocytes. Conclusions Synovial monocytes in childhood-onset arthritis are functionally affected and contribute to chronic inflammation, e.g., via promoting adaptive immune responses. These data support a role of monocytes in the pathogenesis of oJIA and highlight a group of patients more likely to benefit from targeting the IL-6/JAK/STAT axis to restore synovial homeostasis.
Collapse
Affiliation(s)
- Tobias Schmidt
- Department of Pediatrics, Clinical Sciences Lund, Lund University, Lund, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| | - Alma Dahlberg
- Department of Pediatrics, Clinical Sciences Lund, Lund University, Lund, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| | - Elisabet Berthold
- Department of Rheumatology, Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Petra Król
- Department of Pediatrics, Clinical Sciences Lund, Lund University, Lund, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| | - Sabine Arve-Butler
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
- Department of Rheumatology, Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Emilia Rydén
- Department of Pediatrics, Clinical Sciences Lund, Lund University, Lund, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| | - Seyed Morteza Najibi
- Department of Rheumatology, Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Anki Mossberg
- Department of Pediatrics, Clinical Sciences Lund, Lund University, Lund, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| | - Anders A. Bengtsson
- Department of Rheumatology, Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Fredrik Kahn
- Department of Clinical Sciences, Division of Infection Medicine, Lund University, Lund, Sweden
| | - Bengt Månsson
- Department of Pediatrics, Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Robin Kahn
- Department of Pediatrics, Clinical Sciences Lund, Lund University, Lund, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
| |
Collapse
|
8
|
Shahini A, Shahini A. Role of interleukin-6-mediated inflammation in the pathogenesis of inflammatory bowel disease: focus on the available therapeutic approaches and gut microbiome. J Cell Commun Signal 2023; 17:55-74. [PMID: 36112307 PMCID: PMC10030733 DOI: 10.1007/s12079-022-00695-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/29/2022] [Indexed: 10/14/2022] Open
Abstract
Inflammatory bowel disease (IBD) is considered a chronic inflammatory and multifactorial disease of the gastrointestinal tract. Crohn's disease (CD) and ulcerative colitis (UC) are two types of chronic IBD. Although there is no accurate information about IBD pathophysiology, evidence suggests that various factors, including the gut microbiome, environment, genetics, lifestyle, and a dysregulated immune system, may increase susceptibility to IBD. Moreover, inflammatory mediators such as interleukin-6 (IL-6) are involved in the immunopathogenesis of IBDs. IL-6 contributes to T helper 17 (Th17) differentiation, mediating further destructive inflammatory responses in CD and UC. Moreover, Th1-mediated responses participate in IBD, and the antiapoptotic IL-6/IL-6 receptor (IL-6R)/signal transducer and activator of transcription 3 (STAT3) signals are responsible for preserving Th1 cells in the site of inflammation. It has been revealed that fecal bacteria isolated from UC-active and UC-remission patients stimulate the hyperproduction of several cytokines, such as IL-6, tumor necrosis factor-α (TNF-α), IL-10, and IL-12. Given the importance of the IL-6/IL-6R axis, various therapeutic options exist for controlling or treating IBD. Therefore, alternative therapeutic approaches such as modulating the gut microbiome could be beneficial due to the failure of the target therapies so far. This review article summarizes IBD immunopathogenesis focusing on the IL-6/IL-6R axis and discusses available therapeutic approaches based on the gut microbiome alteration and IL-6/IL-6R axis targeting and treatment failure.
Collapse
Affiliation(s)
- Arshia Shahini
- Department of Laboratory Sciences, School of Allied Medical Sciences, Arak University of Medical Sciences, Arak, Iran
| | - Ali Shahini
- Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| |
Collapse
|
9
|
Tsioufis P, Theofilis P, Tsioufis K, Tousoulis D. The Impact of Cytokines in Coronary Atherosclerotic Plaque: Current Therapeutic Approaches. Int J Mol Sci 2022; 23:ijms232415937. [PMID: 36555579 PMCID: PMC9788180 DOI: 10.3390/ijms232415937] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Coronary atherosclerosis is a chronic pathological process that involves inflammation together with endothelial dysfunction and lipoprotein dysregulation. Experimental studies during the past decades have established the role of inflammatory cytokines in coronary artery disease, namely interleukins (ILs), tumor necrosis factor (TNF)-α, interferon-γ, and chemokines. Moreover, their value as biomarkers in disease development and progression further enhance the validity of this interaction. Recently, cytokine-targeted treatment approaches have emerged as potential tools in the management of atherosclerotic disease. IL-1β, based on the results of the CANTOS trial, remains the most validated option in reducing the residual cardiovascular risk. Along the same line, colchicine was also proven efficacious in preventing major adverse cardiovascular events in large clinical trials of patients with acute and chronic coronary syndrome. Other commercially available agents targeting IL-6 (tocilizumab), TNF-α (etanercept, adalimumab, infliximab), or IL-1 receptor antagonist (anakinra) have mostly been assessed in the setting of other inflammatory diseases and further testing in atherosclerosis is required. In the future, potential targeting of the NLRP3 inflammasome, anti-inflammatory IL-10, or atherogenic chemokines could represent appealing options, provided that patient safety is proven to be of no concern.
Collapse
|
10
|
Wang J, Sun Q, Wu J, Tian W, Wang H, Liu H. Identification of four STAT3 isoforms and functional investigation of IL-6/JAK2/STAT3 pathway in blunt snout bream (Megalobrama amblycephala). DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2022; 135:104484. [PMID: 35764161 DOI: 10.1016/j.dci.2022.104484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/17/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
Signal transducer and activator of transcription 3 (STAT3) is a major regulator of immune response and chronic inflammatory, which can be activated by interleukin-6 (IL-6). In mammals, STAT3 has multiple isoforms, and its function has been well studied. In teleost, a single stat3 has been cloned and identified in several species, but studies on its function are limited. In the present study, four stat3 isoforms including mastat3α1, mastat3α2, mastat3β1 and mastat3β2 were identified from blunt snout bream (Megalobrama amblycephala). The results of quantitative PCR (qPCR) showed that four mastat3 transcripts were ubiquitously expressed in all 10 tissues examined. After Aeromonas hydrophila challenge, the expression patterns of mastat3a1, mastat3a2 and mastat3β2 were similar, but significantly different from that of mastat3β1. In addition, western blot showed that rmaIL-6+rmasIL-6R (IL-6 trans-signaling) significantly up-regulated phosphorylation levels of the four maSTAT3 isoforms and mRNA levels of the il-10, il-11, tnf-a, socs3a and socs3b genes, while rmaIL-6 (IL-6 classical signaling) only significantly up-regulated phosphorylation levels of the two maSTAT3α isoforms and mRNA levels of the il-10, socs3a and socs3b genes. Meanwhile, overexpression or inhibition of JAK2 could significantly change the STAT3 phosphorylation. Finally, JAK2 and STAT3 inhibitors could significantly inhibit the up-regulation of il-10, il-11, tnf-a, socs3a and socs3b induced by rmaIL-6+rmasIL-6R or rmaIL-6. To sum up, this study reveals the functional distinctions and overlaps among the four maSTAT3 isoforms in blunt snout bream and reveals the differential regulation of IL-6 classical signaling and trans-signaling on downstream immune genes via the JAK2/STAT3 pathway, enriching our knowledge of fish's defense mechanisms against pathogens.
Collapse
Affiliation(s)
- Jixiu Wang
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, 430070, China
| | - Qianhui Sun
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, 430070, China
| | - Jiaqi Wu
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, 430070, China
| | - Wanping Tian
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, 430070, China
| | - Huanling Wang
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, 430070, China
| | - Hong Liu
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China; Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, 430070, China.
| |
Collapse
|
11
|
Elevated expression of TLR2 and its correlation with disease activity and clinical manifestations in adult-onset Still's disease. Sci Rep 2022; 12:10240. [PMID: 35715478 PMCID: PMC9205149 DOI: 10.1038/s41598-022-14004-4] [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: 11/08/2021] [Accepted: 05/31/2022] [Indexed: 11/08/2022] Open
Abstract
This study investigated the role of Toll-like receptor 1 (TLR1), TLR2, TLR4, TLR7, and TLR9 in patients with adult-onset Still’s disease (AOSD). This study included 20 patients with AOSD and 15 healthy controls (HCs). TLR expression in the peripheral blood was quantified using flow cytometry; TLR expression pattern, in the skin lesions and lymph nodes (LNs) of patients with AOSD, was evaluated immunohistochemically. Significantly higher mean intensities of cells presenting TLR2 and TLR7 from whole blood were observed in patients with AOSD than in HCs. TLR2 expression in whole cells correlated with systemic scores, levels of lactate dehydrogenase and ferritin and serum levels of interleukin-1β (IL-1β), IL-6, and IL-18. The percentage of TLR2-positive inflammatory cells was higher in skin biopsy samples from patients with AOSD than those in HCs. TLR9-expressing positive inflammatory cell counts were higher in skin lesions from patients with AOSD than those in the HC, eczema, and psoriasis groups. The expression levels of TLR1, TLR4, TLR7, and TLR9 were higher in LNs of patients with AOSD than in those with T cell lymphoma and reactive lymphadenopathy. Circulating TLR2- and TLR7-positive cells may contribute to the pathogenesis of AOSD. Furthermore, immunohistochemical staining for TLRs in skin lesions and LNs may aid in differentiating AOSD from similar conditions.
Collapse
|
12
|
Novel Small Molecule Inhibitors Targeting the IL-6/STAT3 Pathway or IL-1β. Molecules 2022; 27:molecules27092696. [PMID: 35566047 PMCID: PMC9101866 DOI: 10.3390/molecules27092696] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/13/2022] [Accepted: 04/20/2022] [Indexed: 11/17/2022] Open
Abstract
Development of small molecules that inhibit inflammatory cytokines is a desirable strategy for the treatment of inflammatory diseases such as rheumatoid arthritis (RA). Following up a previous study, we synthesized 10 novel compounds with a 2,5-diaminobenzoxazole moiety and evaluated their biological activities. Among them, compound 3e showed potent inhibitory activity on Interleukin 6 (IL-6)/Signal Transducer and Activator of Transcription 3 (STAT3) signaling inhibition (71.5%), and 3a showed excellent inhibitory activity on Interleukin 1 (IL-1β) (92.1%). To test in vivo anti-inflammatory activity, compounds 3a and 3e were administered by intraperitoneal (IP) injection after subcutaneous (SC) injection of zymosan A into the right footpad of mice. Inflammation on the footpad was reduced after administration of compounds 3a and 3e. Especially, compound 3a showed a significant ameliorative effect on zymosan-induced inflammation. From the in vivo and in vitro test results, we confirmed that our synthesized compounds are effective on the RA animal model through inhibition of the IL-6/STAT3 signaling pathway. Since drugs developed with small molecule inhibitors have several advantages over biological drugs, further study on these compounds is needed for the development of potent SMI drugs on RA.
Collapse
|
13
|
Salivary biomarkers in children with juvenile idiopathic arthritis and healthy age-matched controls: a prospective observational study. Sci Rep 2022; 12:3240. [PMID: 35217774 PMCID: PMC8881454 DOI: 10.1038/s41598-022-07233-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 02/09/2022] [Indexed: 11/08/2022] Open
Abstract
Monitoring the immune system's regulation and signaling using saliva could be of interest for clinicians and researchers. Saliva, a biofluid with close exchange with serum, is influenced by circadian variance and oral factors such as masticatory function. This study investigated the detectability and concentration of cytokines and chemokines in saliva in children with juvenile idiopathic arthritis (JIA) as well as saliva flow and the influence of orofacial pain on saliva flow. Of the 60 participants (7-14 years old) enrolled, 30 had a diagnosis of JIA and active disease, and 30 were sex- and age-matched healthy controls. Demographic data and three validated questions regarding presence of orofacial pain and dysfunction were recorded. Stimulated whole saliva was collected and analyzed using a customized R&D bead-based immunoassay with 21 targeted biomarkers. Fourteen of these were detectable and showed similar levels in both children with JIA and controls: TNF-alpha, TNFRSF1B, MMP-2, MMP-3, IL-1alpha, IL-1beta, IL-6R alpha, IL-8, S100A8, CCL2, CCL3, IL-10, CCL11, and CXCL9. In addition, there was no difference in salivary flow rate between groups, but there was an association between orofacial pain and reduced saliva flow rate for both groups.Trial registration: ClinicalTrials.gov Protocol id: 2010/2089-31/2.
Collapse
|
14
|
|
15
|
Wu J, Sun L, Tang X, Zheng Q, Guo L, Xu L, Li Y, Lu M. Effective Therapy of Tocilizumab on Systemic Juvenile Idiopathic Arthritis Associated Refractory Macrophage Activation Syndrome. Mod Rheumatol 2021; 32:1114-1121. [PMID: 34971386 DOI: 10.1093/mr/roab119] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/23/2021] [Accepted: 11/19/2021] [Indexed: 11/12/2022]
Abstract
OBJECTIVES To evaluate the safety and efficacy of tocilizumab (TCZ) on refractory macrophage activation syndrome (rMAS) associated with systemic juvenile idiopathic arthritis (sJIA-rMAS). METHODS We retrospectively reviewed the charts of 14 patients diagnosed with sJIA-rMAS, who were treated with TCZ after failing conventional therapies at three hospital centers from Jan 2016 to Dec 2020. Demographic, clinical, and laboratory characteristics were recorded at the onset of MAS, before TCZ (pre-TCZ) and 14 days after TCZ (post-TCZ). RESULTS The clinical manifestation of sJIA-rMAS included fever (100%), skin rashes (35.7%), lymphadenomegaly (42.9%), hepatomegaly (57.1%), splenomegaly (7.1%), gastrointestinal symptoms (28.6%), arthritis (14.3%), myalgia (28.6%) and polyserositis (14.3%). After TCZ treatment, fever (100%, 14/14), gastrointestinal symptoms (100%, 4/4) and myalgia (100%, 4/4) were significantly improved after one week (p< 0.05). Skin rashes, lymphadenomegaly and arthritis also improved in many patients but these parameters did not reach statistical significance. In post-TCZ group, decreases in levels of c-reactive protein, erythrocyte sedimentation rate and serum ferritin of sJIA-rMAS were observed compared with pre-TCZ (p< 0.05). Although not statistically significant, post-TCZ group showed normalization of white blood cell, platelet count, alanine aminotransferase, aspartate aminotransferase, lactic dehydrogenase and triglyceride levels compared with pre-TCZ. No disease relapse or fatality was recorded during the follow-up (25 months, range 3-60 months). CONCLUSIONS TCZ is safe and effective for the treatment of sJIA-rMAS after failure of conventional therapies.
Collapse
Affiliation(s)
- Jianqiang Wu
- Department of Rheumatology Immunology and Allergy, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Li Sun
- Department of Rheumatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Xuemei Tang
- Department of Rheumatology and Immunology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Qi Zheng
- Department of Rheumatology Immunology and Allergy, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Li Guo
- Department of Rheumatology Immunology and Allergy, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Li Xu
- Department of Rheumatology and Immunology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Yandie Li
- Department of Rheumatology Immunology and Allergy, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Meiping Lu
- Department of Rheumatology Immunology and Allergy, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| |
Collapse
|
16
|
Cui Y, Shi J, Lu G, Wang Y, Zhu X, Ren H, Zhu Y, Yan G, Wang C, Zhang Y. Prognostic death factors in secondary hemophagocytic lymphohistiocytosis children with multiple organ dysfunction syndrome receiving continuous renal replacement therapy: A multicenter prospective nested case-control study. Ther Apher Dial 2021; 26:1023-1029. [PMID: 34877787 PMCID: PMC9540864 DOI: 10.1111/1744-9987.13775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/01/2021] [Accepted: 12/05/2021] [Indexed: 11/30/2022]
Abstract
Introduction Multiple organ dysfunction syndrome (MODS) with secondary hemophagocytic lymphohistiocytosis (SHLH) causes significant mortality. We aimed to identify the predictor factors for death in pediatric patients with SHLH‐associated MODS receiving continuous renal replacement therapy (CRRT). Methods This multicentered nested case–control study was conducted from 2016 to 2020. The characteristics were compared between survivors and non‐survivors. Logistic regression was applied to identify the risk factors for death. The cutoff values were assessed by receiver operating characteristics curves. Results Fifty two patients were enrolled in this study. Interleukin‐6 level (p = 0.018) and the number of organ dysfunction (p = 0.047) were independent risk factors for death. The cutoff value of 13.12 pg/ml interleukin‐6 and three organs dysfunction at CRRT initiation presented a high sensitivity and specificity. Conclusion The number of organ dysfunction and interleukin‐6 at CRRT initiation are independent risk factors for death in pediatric patients with SHLH‐associated MODS.
Collapse
Affiliation(s)
- Yun Cui
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jingyi Shi
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Guoping Lu
- Department of Critical Care Medicine, Children's Hospital of Fudan University, Shanghai, China
| | - Ying Wang
- Department of Critical Care Medicine, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaodong Zhu
- Department of Pediatric Critical Care Medicine, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hong Ren
- Department of Critical Care Medicine, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yueniu Zhu
- Department of Pediatric Critical Care Medicine, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Gangfeng Yan
- Department of Critical Care Medicine, Children's Hospital of Fudan University, Shanghai, China
| | - Chunxia Wang
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China.,Institute of Pediatric Critical Care, Shanghai Jiao Tong University, Shanghai, China
| | - Yucai Zhang
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China.,Institute of Pediatric Critical Care, Shanghai Jiao Tong University, Shanghai, China
| |
Collapse
|
17
|
Ding W, Chim SSC, Wang CC, Lau CSL, Leung TY. Molecular Mechanism and Pathways of Normal Human Parturition in Different Gestational Tissues: A Systematic Review of Transcriptome Studies. Front Physiol 2021; 12:730030. [PMID: 34566691 PMCID: PMC8461075 DOI: 10.3389/fphys.2021.730030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/10/2021] [Indexed: 12/29/2022] Open
Abstract
Objective: Genome-wide transcriptomic studies on gestational tissues in labor provide molecular insights in mechanism of normal parturition. This systematic review aimed to summarize the important genes in various gestational tissues around labor onset, and to dissect the underlying molecular regulations and pathways that trigger the labor in term pregnancies. Data sources: PubMed and Web of Science were searched from inception to January 2021. Study Eligibility Criteria: Untargeted genome-wide transcriptomic studies comparing the gene expression of various gestational tissues in normal term pregnant women with and without labor were included. Methods: Every differentially expressed gene was retrieved. Consistently expressed genes with same direction in different studies were identified, then gene ontology and KEGG analysis were conducted to understand molecular pathways and functions. Gene-gene association analysis was performed to determine the key regulatory gene(s) in labor onset. Results: A total of 15 studies, including 266 subjects, were included. 136, 26, 15, 7, and 3 genes were significantly changed during labor in the myometrium (seven studies, n = 108), uterine cervix (four studies, n = 64), decidua (two studies, n = 42), amnion (two studies, n = 44) and placenta (two studies, n = 41), respectively. These genes were overrepresented in annotation terms related to inflammatory and immune responses. TNF and NOD-like receptor signaling pathways were overrepresented in all mentioned tissues, except the placenta. IL6 was the only gene included in both pathways, the most common reported gene in all included studies, and also the gene in the central hub of molecular regulatory network. Conclusions: This systematic review identified that genes involved in immunological and inflammatory regulations are expressed in specific gestational tissues in labor. We put forward the hypothesis that IL6 might be the key gene triggering specific mechanism in different gestational tissues, eventually leading to labor onset through inducing uterine contraction, wakening fetal membranes and stimulating cervical ripening. Systematic Review Registration: Identifier [CRD42020187975].
Collapse
Affiliation(s)
- Wenjing Ding
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Stephen Siu Chung Chim
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Chi Chiu Wang
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Caitlyn So Ling Lau
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Tak Yeung Leung
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| |
Collapse
|
18
|
Winslow S, Odqvist L, Diver S, Riise R, Abdillahi S, Wingren C, Lindmark H, Wellner A, Lundin S, Yrlid L, Ax E, Djukanovic R, Sridhar S, Higham A, Singh D, Southworth T, Brightling CE, Olsson HK, Jevnikar Z. Multi-omics links IL-6 trans-signalling with neutrophil extracellular trap formation and Haemophilus infection in COPD. Eur Respir J 2021; 58:13993003.03312-2020. [PMID: 33766947 DOI: 10.1183/13993003.03312-2020] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 03/04/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND IL-6 trans-signalling (IL-6TS) is emerging as a pathogenic mechanism in chronic respiratory diseases, however the drivers of IL-6TS in the airways and the phenotypic characteristic of patients with increased IL-6TS pathway activation remain poorly understood. OBJECTIVE Our aim was to identify and characterize COPD patients with increased airway IL-6TS and to elucidate the biological drivers of IL-6TS pathway activation. METHODS We used an IL-6TS-specific sputum biomarker profile (sIL-6R, IL-6, IL-1β, IL-8, MIP-1β) to stratify sputum data from patients with COPD (n=74; BEAT-COPD) by hierarchical clustering. The IL-6TS signature was related to clinical characteristics and sputum microbiome profiles. The induction of neutrophil extracellular trap formation (NETosis) and IL-6TS by Haemophilus influenzae were studied in human neutrophils. RESULTS Hierarchical clustering revealed an IL-6TS-high subset (n=24) of COPD patients, which shared phenotypic traits with an IL-6TS-high subset previously identified in asthma. The subset was characterized by increased sputum cell counts (p=0.0001), persistent sputum neutrophilia (p=0.0004), reduced quality of life (CRQ total score; p=0.008), and increased levels of pro-inflammatory mediators and MMPs in sputum. IL-6TS-high COPD patients showed an increase in Proteobacteria, with Haemophilus as the dominating genus. NETosis induced by H. influenzae was identified as a potential mechanism for increased soluble IL-6 receptor (sIL-6R) levels. This was supported by a significant positive correlation between sIL-6R and NETosis markers in bronchoalveolar lavage fluid from COPD patients. CONCLUSION IL-6TS pathway activation due to chronic colonization with Haemophilus may be an important disease driver in a subset of COPD patients.
Collapse
Affiliation(s)
- Sofia Winslow
- Translational Science and Experimental Medicine, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Lina Odqvist
- Bioscience COPD/IPF, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Sarah Diver
- Department of Respiratory Science, Institute for Lung Health, NIHR Leicester Biomedical Research Centre, University of Leicester and University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Rebecca Riise
- Bioscience COPD/IPF, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Suado Abdillahi
- Bioscience COPD/IPF, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Cecilia Wingren
- Bioscience COPD/IPF, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Helena Lindmark
- Discovery Sciences, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Annika Wellner
- Medicinal Chemistry, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Sofia Lundin
- Translational Science and Experimental Medicine, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Linda Yrlid
- Bioscience COPD/IPF, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Elisabeth Ax
- Translational Science and Experimental Medicine, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden.,Krefting Research Centre, Institute of Medicine at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ratko Djukanovic
- NIHR Southampton Respiratory Biomedical Research Unit, Clinical and Experimental Sciences and Human Development and Health, University of Southampton, Southampton, UK
| | - Sriram Sridhar
- Oncology Bioinformatics, Translational Science, Early Oncology, Oncology R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Andrew Higham
- The University of Manchester Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester and University Hospital of South Manchester, NHS Foundation Trust, Manchester, UK
| | - Dave Singh
- The University of Manchester Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester and University Hospital of South Manchester, NHS Foundation Trust, Manchester, UK
| | - Thomas Southworth
- The University of Manchester Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester and University Hospital of South Manchester, NHS Foundation Trust, Manchester, UK
| | - Christopher E Brightling
- Department of Respiratory Science, Institute for Lung Health, NIHR Leicester Biomedical Research Centre, University of Leicester and University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Henric K Olsson
- Translational Science and Experimental Medicine, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Zala Jevnikar
- Translational Science and Experimental Medicine, Early Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| |
Collapse
|
19
|
Jung JY, Kim JW, Suh CH, Kim HA. Roles of Interactions Between Toll-Like Receptors and Their Endogenous Ligands in the Pathogenesis of Systemic Juvenile Idiopathic Arthritis and Adult-Onset Still's Disease. Front Immunol 2020; 11:583513. [PMID: 33224145 PMCID: PMC7674197 DOI: 10.3389/fimmu.2020.583513] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 10/12/2020] [Indexed: 12/14/2022] Open
Abstract
Systemic juvenile idiopathic arthritis (JIA) and adult-onset Still’s disease (AOSD) are systemic inflammatory disorders that manifest as high-spiking fever, joint pain, evanescent skin rash, and organomegaly. Their pathogenesis is unclear, but inflammation is triggered by activation of the innate immune system with aberrant production of proinflammatory cytokines. Along with extrinsic factors, intrinsic pathways can trigger an unexpected immune response. Damage-associated molecular patterns (DAMPs) induce the activation of innate immune cells, leading to sterile inflammation in systemic JIA and AOSD. These endogenous proteins interact with Toll-like receptors (TLRs), which are pattern recognition receptors, and mediate immune signaling following stimulation by pathogen-associated molecular patterns and DAMPs. Several DAMPs, such as S100 proteins, play a role in the development or severity of systemic JIA and AOSD, in which their interactions with TLRs are altered. Also, the expression levels of genes encoding DAMPs contribute to the susceptibility to systemic JIA and AOSD. Herein, we review reports that TLR and DAMP signaling initiates and/or maintains the inflammatory response in systemic JIA and AOSD, and their correlations with the clinical characteristics of those diseases. In addition, we assess their utility as biomarkers or therapeutics for systemic JIA and AOSD.
Collapse
Affiliation(s)
- Ju-Yang Jung
- Department of Rheumatology, Ajou University of Medical School, Suwon, South Korea
| | - Ji-Won Kim
- Department of Rheumatology, Ajou University of Medical School, Suwon, South Korea
| | - Chang-Hee Suh
- Department of Rheumatology, Ajou University of Medical School, Suwon, South Korea
| | - Hyoun-Ah Kim
- Department of Rheumatology, Ajou University of Medical School, Suwon, South Korea
| |
Collapse
|
20
|
Lim HJ, Bak SG, Park EJ, Ku SK, Lee S, Lee SW, Lee KM, Lee SJ, Rho MC. Retrofractamide C Derived from Piper longum Alleviates Xylene-Induced Mouse Ear Edema and Inhibits Phosphorylation of ERK and NF-κB in LPS-Induced J774A.1. Molecules 2020; 25:molecules25184058. [PMID: 32899525 PMCID: PMC7570867 DOI: 10.3390/molecules25184058] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 08/28/2020] [Accepted: 09/03/2020] [Indexed: 11/17/2022] Open
Abstract
Many studies have reported the biological activities of retrofractamide C (RAC). However, few studies have investigated the anti-inflammatory effect of RAC. In the present study, we investigated the anti-inflammatory effect of RAC using lipopolysaccharide (LPS)-induced J774A.1 cells and a xylene-induced mouse ear edema model. Treatment with RAC decreased LPS-induced nitric oxide (NO) and prostaglandin E2 (PGE2) secretion and inducible NO synthase (iNOS) and cyclooxygenase 2 (COX2) protein expression. It also downregulated the LPS-induced production of interleukin-1β (IL-1β) and interleukin-6 (IL-6) but not tumor necrosis factor α (TNF-α). In the LPS-induced signaling pathway, RAC inhibited the phosphorylation of extracellular signal-regulated kinase (ERK) and nuclear factor kappa light chain enhancer of activated B cells (NF-κB) but not c-Jun N-terminal kinase (JNK) or p38. In a xylene-induced mouse ear edema model, RAC treatment alleviated edema formation and inflammatory cell infiltration. In conclusion, the present study indicates that RAC has the potential to have anti-inflammatory effects and could be a prospective functional food.
Collapse
Affiliation(s)
- Hyung Jin Lim
- Immunoregulatory Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeonbuk 56212, Korea; (H.J.L.); (S.G.B.); (E.J.P.); (S.L.); (S.W.L.)
- Department of Molecular Biology, Chonbuk National University, Jeonju-si, Jeonbuk 54896, Korea;
| | - Seon Gyeong Bak
- Immunoregulatory Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeonbuk 56212, Korea; (H.J.L.); (S.G.B.); (E.J.P.); (S.L.); (S.W.L.)
- Department of Marine Bio Food Science, Chonnam National University, Yeosu-si, Jeonnam 59626, Korea
| | - Eun Jae Park
- Immunoregulatory Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeonbuk 56212, Korea; (H.J.L.); (S.G.B.); (E.J.P.); (S.L.); (S.W.L.)
- Division of Biotechnology and Advanced Institute of Environment and Bioscience, Jeonbuk National University, Iksan-si, Jeonbuk 54596, Korea
| | - Sae-Kwang Ku
- Department of Anatomy and Histology, College of Korean Medicine, Daegu Haany University, Gyeongsan-si, Gyeonbuk 38610, Korea;
| | - Soyoung Lee
- Immunoregulatory Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeonbuk 56212, Korea; (H.J.L.); (S.G.B.); (E.J.P.); (S.L.); (S.W.L.)
| | - Seung Woong Lee
- Immunoregulatory Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeonbuk 56212, Korea; (H.J.L.); (S.G.B.); (E.J.P.); (S.L.); (S.W.L.)
| | - Kang Min Lee
- Department of Molecular Biology, Chonbuk National University, Jeonju-si, Jeonbuk 54896, Korea;
| | - Seung-Jae Lee
- Immunoregulatory Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeonbuk 56212, Korea; (H.J.L.); (S.G.B.); (E.J.P.); (S.L.); (S.W.L.)
- Correspondence: (S.-J.L.); (M.-C.R.); Tel.: +82-63-570-5267 (S.-J.L.); +82-63-570-5230 (M.-C.R.)
| | - Mun-Chual Rho
- Immunoregulatory Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeonbuk 56212, Korea; (H.J.L.); (S.G.B.); (E.J.P.); (S.L.); (S.W.L.)
- Correspondence: (S.-J.L.); (M.-C.R.); Tel.: +82-63-570-5267 (S.-J.L.); +82-63-570-5230 (M.-C.R.)
| |
Collapse
|
21
|
Chen Y, Qiu F, Yu B, Chen Y, Zuo F, Zhu X, Nandakumar KS, Xiao C. Metformin, an AMPK Activator, Inhibits Activation of FLSs but Promotes HAPLN1 Secretion. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2020; 17:1202-1214. [PMID: 32518807 PMCID: PMC7275116 DOI: 10.1016/j.omtm.2020.05.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 05/07/2020] [Indexed: 12/12/2022]
Abstract
AMP-activated protein kinase (AMPK) is essential for maintaining energy balance and has a crucial role in various inflammatory pathways. In this study, AMPK levels positively correlated with many inflammatory indexes in rheumatoid arthritis (RA) patients, especially in the affected synovium. In RA sera, a positive correlation between phosphorylated (p-)AMPK-α1 levels and DAS28 (disease activity score 28) activity (r = 0.270, p < 0.0001) was found. Similarly, a positive correlation was observed between AMPK-α1 and tumor necrosis factor α (TNF-α) levels (r = 0.460, p = 0.0002). Differentially expressed genes between osteoarthritis (OA) and RA synovium from NCBI GEO profiles and our RNA sequencing data suggested activation of metabolic pathways specific to RA-fibroblast-like synoviocytes (FLSs). AMPK-α1 was highly expressed in the synovium of RA but not OA patients. An AMPK activator, metformin, inhibited FLS proliferation at higher but not lower concentrations, whereas the inhibitor dorsomorphin promoted the proliferation of RA-FLSs. Interestingly, both metformin and dorsomorphin inhibited the migration of RA-FLSs. After metformin treatment, expression of interleukin 6 (IL-6), TNF-α, and IL-1β were significantly downregulated in RA-FLSs; however, increased expression of p-AMPK-α1, protein kinase A (PKA)-α1, and HAPLN1 (hyaluronan and proteoglycan link protein 1) was observed. Increased levels of HAPLN1 in RA-FLSs by an AMPK activator could potentially be beneficial in protecting the joints. Hence, our results demonstrate the potential of an AMPK activator as a therapeutic for RA.
Collapse
Affiliation(s)
- Yong Chen
- Department of Rheumatology, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510330, P.R. China
| | - Fujuan Qiu
- Department of Rheumatology, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510330, P.R. China
| | - Beijia Yu
- Department of Rheumatology, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510330, P.R. China
| | - Yanjuan Chen
- School of Medicine, Jinan University, Guangzhou 510632, P.R. China
| | - Fangfang Zuo
- Department of Rheumatology, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510330, P.R. China
| | - XiaoYu Zhu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, P.R. China
| | - Kutty Selva Nandakumar
- Southern Medical University-Karolinska Institute United Medical Inflammation Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, P.R. China
| | - Changhong Xiao
- Department of Rheumatology, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510330, P.R. China
| |
Collapse
|
22
|
Tseng CC, Wu LY, Tsai WC, Ou TT, Wu CC, Sung WY, Kuo PL, Yen JH. Differential Expression Profiles of the Transcriptome and miRNA Interactome in Synovial Fibroblasts of Rheumatoid Arthritis Revealed by Next Generation Sequencing. Diagnostics (Basel) 2019; 9:diagnostics9030098. [PMID: 31426562 PMCID: PMC6787660 DOI: 10.3390/diagnostics9030098] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/08/2019] [Accepted: 08/13/2019] [Indexed: 12/12/2022] Open
Abstract
Using next-generation sequencing to decipher the molecular mechanisms underlying aberrant rheumatoid arthritis synovial fibroblasts (RASF) activation, we performed transcriptome-wide RNA-seq and small RNA-seq on synovial fibroblasts from rheumatoid arthritis (RA) subject and normal donor. Differential expression of mRNA and miRNA was integrated with interaction analysis, functional annotation, regulatory network mapping and experimentally verified miRNA–target interaction data, further validated with microarray expression profiles. In this study, 3049 upregulated mRNA and 3552 downregulated mRNA, together with 50 upregulated miRNA and 35 downregulated miRNA in RASF were identified. Interaction analysis highlighted contribution of miRNA to altered transcriptome. Functional annotation revealed metabolic deregulation and oncogenic signatures of RASF. Regulatory network mapping identified downregulated FOXO1 as master transcription factor resulting in altered transcriptome of RASF. Differential expression in three miRNA and corresponding targets (hsa-miR-31-5p:WASF3, hsa-miR-132-3p:RB1, hsa-miR-29c-3p:COL1A1) were also validated. The interactions of these three miRNA–target genes were experimentally validated with past literature. Our transcriptomic and miRNA interactomic investigation identified gene signatures associated with RASF and revealed the involvement of transcription factors and miRNA in an altered transcriptome. These findings help facilitate our understanding of RA with the hope of serving as a springboard for further discoveries relating to the disease.
Collapse
Affiliation(s)
- Chia-Chun Tseng
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung 80145, Taiwan
| | - Ling-Yu Wu
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Wen-Chan Tsai
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
| | - Tsan-Teng Ou
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
| | - Cheng-Chin Wu
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
| | - Wan-Yu Sung
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
| | - Po-Lin Kuo
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
- Institute of Biomedical Science, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan.
| | - Jeng-Hsien Yen
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan.
- Institute of Biomedical Science, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan.
| |
Collapse
|
23
|
Shang L, Deng D, Buskermolen JK, Roffel S, Janus MM, Krom BP, Crielaard W, Gibbs S. Commensal and Pathogenic Biofilms Alter Toll-Like Receptor Signaling in Reconstructed Human Gingiva. Front Cell Infect Microbiol 2019; 9:282. [PMID: 31448244 PMCID: PMC6692492 DOI: 10.3389/fcimb.2019.00282] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 07/24/2019] [Indexed: 12/24/2022] Open
Abstract
The balance between the host and microbe is pivotal for oral health. A dysbiotic oral microbiome and the subsequent host inflammatory response are causes for the most common dental problems, such as periodontitis and caries. Classically, toll-like receptors (TLRs) are known to play important roles in host-microbe interactions by recognizing pathogens and activating innate immunity. However, emerging evidence suggests that commensals may also exploit TLRs to induce tolerance to the benefit of the host, especially in oral mucosa which is heavily colonized by abundant microbes. How TLRs and downstream signaling events are affected by different oral microbial communities to regulate host responses is still unknown. To compare such human host-microbe interactions in vitro, we exposed a reconstructed human gingiva (RHG) to commensal or pathogenic (gingivitis, cariogenic) multi-species oral biofilms cultured from human saliva. These biofilms contain in vivo like phylogenic numbers and typical bacterial genera. After 24 h biofilm exposure, TLR protein and gene expression of 84 TLR pathway related genes were investigated. Commensal and pathogenic biofilms differentially regulated TLR protein expression. Commensal biofilm up-regulated the transcription of a large group of key genes, which are involved in TLR signaling, including TLR7, the MyD88-dependent pathway (CD14, MyD88, TIRAP, TRAF6, IRAKs), MyD88-independent pathway (TAB1, TBK1, IRF3), and their downstream signaling pathways (NF-κB and MAPK pathways). In comparison, gingivitis biofilm activated fewer genes (e.g., TLR4) and cariogenic biofilm suppressed CD14, IRAK4, and IRF3 transcription. Fluorescence in situ hybridization staining showed the rRNA of the topically applied and invaded bacteria, and histology showed that the biofilms had no obvious detrimental effect on RHG morphology. These results show an important role of TLR signaling pathways in regulating host-microbe interactions: when a sterile gingival tissue is exposed to commensals, a strong immune activation occurs which may prime the host against potential challenges in order to maintain oral host-microbe homeostasis. In contrast, pathogenic biofilms stimulate a weaker immune response which might facilitate immune evasion thus enabling pathogens to penetrate undetected into the tissues.
Collapse
Affiliation(s)
- Lin Shang
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Dongmei Deng
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Jeroen Kees Buskermolen
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Sanne Roffel
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Marleen Marga Janus
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Bastiaan Philip Krom
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Wim Crielaard
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Susan Gibbs
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, Netherlands.,Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| |
Collapse
|
24
|
Abstract
Juvenile idiopathic arthritis (JIA) is a chronic childhood arthritis. Its pathogenesis is very complicated, with the involvement of not only immune cells but various types of parenchymal cells, and is affected by both genetic and environmental predispositions. The clinical spectrum from inflammation to related conditions is largely mediated by cytokines including interleukin (IL)-6. Fluctuations in IL-6 and its related molecules can modulate the pathogenesis and the clinical presentation positively or negatively. The recent clinical impact of IL-6 blockade on JIA has begun a therapeutic paradigm shift. This review describes the characteristics of JIA, mainly focused on IL-6 with the current therapeutic perspective.
Collapse
Affiliation(s)
- Shinji Akioka
- a Department of Pediatrics , Kyoto Prefectural University of Medicine , Kyoto , Japan
| |
Collapse
|
25
|
O'Neill L, McCormick J, Gao W, Veale DJ, McCarthy GM, Murphy CC, Fearon U, Molloy ES. Interleukin-6 does not upregulate pro-inflammatory cytokine expression in an ex vivo model of giant cell arteritis. Rheumatol Adv Pract 2019; 3:rkz011. [PMID: 31431999 PMCID: PMC6649906 DOI: 10.1093/rap/rkz011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 03/17/2019] [Indexed: 11/14/2022] Open
Abstract
Objective The aim of this study was to examine the pro-inflammatory effects of IL-6 in ex vivo temporal artery explant cultures. Methods Patients meeting 1990 ACR classification criteria for GCA were prospectively recruited. Temporal artery biopsies were obtained and temporal artery explants cultured ex vivo with IL-6 (10-40 ng/ml) in the presence or absence of its soluble receptor (sIL-6R; 20 ng/ml) for 24 h. Explant supernatants were harvested after 24 h and assayed for IFN-γ, TNF-α, Serum amyloid A, IL-1β, IL-17, IL-8, angiotensin II and VEGF by ELISA. Myofibroblast outgrowths, cytoskeletal rearrangement and wound repair assays were performed. Results IL-6 augmented production of VEGF, but not of any of the other pro-inflammatory mediators assayed. No differences were observed in the explants cultured in the presence or absence of the sIL-6R or between those with a positive (n = 11) or negative (n = 17) temporal artery biopsy. IL-6 did not enhance myofibroblast proliferation or migration. Western blot analysis confirmed signalling activation, with increased expression of pSTAT3 in response to IL-6+sIL-6R. Conclusion IL-6 stimulation of temporal artery explants from patients with GCA neither increased expression of key pro-inflammatory mediators nor influenced myofibroblast proliferation or migration.
Collapse
Affiliation(s)
- Lorraine O'Neill
- Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Dublin Academic Medical Centre, Royal College of Surgeons, Ireland
| | - Jennifer McCormick
- Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Dublin Academic Medical Centre, Royal College of Surgeons, Ireland
| | - Wei Gao
- Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Dublin Academic Medical Centre, Royal College of Surgeons, Ireland
| | - Douglas J Veale
- Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Dublin Academic Medical Centre, Royal College of Surgeons, Ireland
| | - Geraldine M McCarthy
- Mater Misericordiae University Hospital, Dublin Academic Medical Centre, Royal College of Surgeons, Ireland
| | - Conor C Murphy
- Department of Ophthalmology, Royal Victoria Eye and Ear Hospital, Royal College of Surgeons, Ireland
| | - Ursula Fearon
- Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Dublin Academic Medical Centre, Royal College of Surgeons, Ireland
| | - Eamonn S Molloy
- Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Dublin Academic Medical Centre, Royal College of Surgeons, Ireland
| |
Collapse
|
26
|
Hernández-Palma LA, García-Arellano S, Bucala R, Llamas-Covarrubias MA, De la Cruz-Mosso U, Oregon-Romero E, Cerpa-Cruz S, Parra-Rojas I, Plascencia-Hernández A, Muñoz-Valle JF. Functional MIF promoter haplotypes modulate Th17-related cytokine expression in peripheral blood mononuclear cells from control subjects and rheumatoid arthritis patients. Cytokine 2019; 115:89-96. [DOI: 10.1016/j.cyto.2018.11.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 11/12/2018] [Accepted: 11/13/2018] [Indexed: 12/21/2022]
|
27
|
Chen Z, Amro EM, Becker F, Hölzer M, Rasa SMM, Njeru SN, Han B, Di Sanzo S, Chen Y, Tang D, Tao S, Haenold R, Groth M, Romanov VS, Kirkpatrick JM, Kraus JM, Kestler HA, Marz M, Ori A, Neri F, Morita Y, Rudolph KL. Cohesin-mediated NF-κB signaling limits hematopoietic stem cell self-renewal in aging and inflammation. J Exp Med 2019; 216:152-175. [PMID: 30530755 PMCID: PMC6314529 DOI: 10.1084/jem.20181505] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 11/06/2018] [Accepted: 11/19/2018] [Indexed: 01/02/2023] Open
Abstract
Organism aging is characterized by increased inflammation and decreased stem cell function, yet the relationship between these factors remains incompletely understood. This study shows that aged hematopoietic stem and progenitor cells (HSPCs) exhibit increased ground-stage NF-κB activity, which enhances their responsiveness to undergo differentiation and loss of self-renewal in response to inflammation. The study identifies Rad21/cohesin as a critical mediator of NF-κB signaling, which increases chromatin accessibility in the vicinity of NF-κB target genes in response to inflammation. Rad21 is required for normal differentiation, but limits self-renewal of hematopoietic stem cells (HSCs) during aging and inflammation in an NF-κB-dependent manner. HSCs from aged mice fail to down-regulate Rad21/cohesin and inflammation/differentiation signals in the resolution phase of inflammation. Inhibition of cohesin/NF-κB reverts hypersensitivity of aged HSPCs to inflammation-induced differentiation and myeloid-biased HSCs with disrupted/reduced expression of Rad21/cohesin are increasingly selected during aging. Together, Rad21/cohesin-mediated NF-κB signaling limits HSPC function during aging and selects for cohesin-deficient HSCs with myeloid-skewed differentiation.
Collapse
Affiliation(s)
- Zhiyang Chen
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
| | - Elias Moris Amro
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
| | - Friedrich Becker
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
| | - Martin Hölzer
- RNA Bioinformatics and High-Throughput Analysis, Friedrich Schiller University Jena, Jena, Germany
- European Virus Bioinformatics Center (EVBC), Jena, Germany
| | | | | | - Bing Han
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
| | - Simone Di Sanzo
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
| | - Yulin Chen
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
| | - Duozhuang Tang
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
| | - Si Tao
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
| | - Ronny Haenold
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
- Matthias Schleiden Institute for Genetics, Bioinformatics and Molecular Botany, Faculty of Biological Sciences, Friedrich Schiller University Jena, Jena, Germany
| | - Marco Groth
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
| | - Vasily S Romanov
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
| | | | - Johann M Kraus
- Institute of Medical Systems Biology, Ulm University, Ulm, Germany
| | - Hans A Kestler
- Institute of Medical Systems Biology, Ulm University, Ulm, Germany
| | - Manja Marz
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
- RNA Bioinformatics and High-Throughput Analysis, Friedrich Schiller University Jena, Jena, Germany
- European Virus Bioinformatics Center (EVBC), Jena, Germany
| | - Alessandro Ori
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
| | - Francesco Neri
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
| | - Yohei Morita
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
| | - K Lenhard Rudolph
- Leibniz Institute on Aging, Fritz Lipmann Institute (FLI), Jena, Germany
- Faculty of Medicine, Friedrich-Schiller-University, Jena, Germany
| |
Collapse
|
28
|
Smith JK. IL-6 and the dysregulation of immune, bone, muscle, and metabolic homeostasis during spaceflight. NPJ Microgravity 2018; 4:24. [PMID: 30534586 PMCID: PMC6279793 DOI: 10.1038/s41526-018-0057-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 10/10/2018] [Indexed: 01/08/2023] Open
Abstract
We have previously reported that exercise-related secretion of IL-6 by peripheral blood mononuclear cells is proportionate to body weight, suggesting that IL-6 is gravisensitive and that suboptimal production of this key cytokine may contribute to homeostatic dysregulations that occur during spaceflight. This review details what is known about the role of this key cytokine in innate and adaptive immunity, hematopoiesis, and in bone, muscle and metabolic homeostasis on Earth and in the microgravity of space and suggests an experimental approach to confirm or disavow the role of IL-6 in space-related dysregulations.
Collapse
Affiliation(s)
- John Kelly Smith
- Departments of Academic Affairs and Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN USA
| |
Collapse
|
29
|
Contribution of STAT3 to Inflammatory and Fibrotic Diseases and Prospects for its Targeting for Treatment. Int J Mol Sci 2018; 19:ijms19082299. [PMID: 30081609 PMCID: PMC6121470 DOI: 10.3390/ijms19082299] [Citation(s) in RCA: 116] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 07/13/2018] [Accepted: 08/02/2018] [Indexed: 02/06/2023] Open
Abstract
Signal transducer and activator of transcription (STAT) 3 plays a central role in the host response to injury. It is activated rapidly within cells by many cytokines, most notably those in the IL-6 family, leading to pro-proliferative and pro-survival programs that assist the host in regaining homeostasis. With persistent activation, however, chronic inflammation and fibrosis ensue, leading to a number of debilitating diseases. This review summarizes advances in our understanding of the role of STAT3 and its targeting in diseases marked by chronic inflammation and/or fibrosis with a focus on those with the largest unmet medical need.
Collapse
|
30
|
Ragab G, Atkinson TP, Stoll ML. Macrophage Activation Syndrome. THE MICROBIOME IN RHEUMATIC DISEASES AND INFECTION 2018. [PMCID: PMC7123081 DOI: 10.1007/978-3-319-79026-8_14] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Hemophagocytic lymphohistiocytosis (HLH), or termed macrophage activation syndrome (MAS) when associated with rheumatic disorders, is a frequently fatal complication of infections, rheumatic disorders, and hematopoietic malignancies. Clinically, HLH/MAS is a life-threatening condition that is usually diagnosed among febrile hospitalized patients (children and adults) who commonly present with unremitting fever and a shock-like multiorgan dysfunction scenario. Laboratory studies reveal pancytopenia, elevated liver enzymes, elevated markers of inflammation (ESR, CRP), hyperferritinemia, and features of coagulopathy. In about 60% of cases, excess hemophagocytosis (macrophages/histiocytes engulfing other hematopoietic cell types) is noted on biopsy specimens from the bone marrow, liver, lymph nodes, and other organs. HLH/MAS has been hypothesized to occur when a threshold level of inflammation has been achieved, and genetic and environmental risk factors are believed to contribute to the hyperinflammatory state. A broad variety of infections, from viruses to fungi to bacteria, have been identified as triggers of HLH/MAS, either in isolation or in addition to an underlying inflammatory disease state. Certain infections, particularly by members of the herpesvirus family, are the most notorious triggers of HLH/MAS. Treatment for infection-triggered MAS requires therapy for both the underlying infection and dampening of the hyperactive immune response.
Collapse
Affiliation(s)
- Gaafar Ragab
- Faculty of Medicine, Cairo University, Cairo, Egypt
| | | | | |
Collapse
|
31
|
Bisicchia E, Sasso V, Catanzaro G, Leuti A, Besharat ZM, Chiacchiarini M, Molinari M, Ferretti E, Viscomi MT, Chiurchiù V. Resolvin D1 Halts Remote Neuroinflammation and Improves Functional Recovery after Focal Brain Damage Via ALX/FPR2 Receptor-Regulated MicroRNAs. Mol Neurobiol 2018; 55:6894-6905. [PMID: 29357041 DOI: 10.1007/s12035-018-0889-z] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 01/08/2018] [Indexed: 12/31/2022]
Abstract
Remote damage is a secondary phenomenon that usually occurs after a primary brain damage in regions that are distant, yet functionally connected, and that is critical for determining the outcomes of several CNS pathologies, including traumatic brain and spinal cord injuries. The understanding of remote damage-associated mechanisms has been mostly achieved in several models of focal brain injury such as the hemicerebellectomy (HCb) experimental paradigm, which helped to identify the involvement of many key players, such as inflammation, oxidative stress, apoptosis and autophagy. Currently, few interventions have been shown to successfully limit the progression of secondary damage events and there is still an unmet need for new therapeutic options. Given the emergence of the novel concept of resolution of inflammation, mediated by the newly identified ω3-derived specialized pro-resolving lipid mediators, such as resolvins, we reported a reduced ability of HCb-injured animals to produce resolvin D1 (RvD1) and an increased expression of its target receptor ALX/FPR2 in remote brain regions. The in vivo administration of RvD1 promoted functional recovery and neuroprotection by reducing the activation of Iba-1+ microglia and GFAP+ astrocytes as well as by impairing inflammatory-induced neuronal cell death in remote regions. These effects were counteracted by intracerebroventricular neutralization of ALX/FPR2, whose activation by RvD1 also down-regulated miR-146b- and miR-219a-1-dependent inflammatory markers. In conclusion, we propose that innovative therapies based on RvD1-ALX/FPR2 axis could be exploited to curtail remote damage and enable neuroprotective effects after acute focal brain damage.
Collapse
Affiliation(s)
- Elisa Bisicchia
- IRCCS Santa Lucia Foundation, via del Fosso di Fiorano 64, 00143, Rome, Italy
| | - Valeria Sasso
- IRCCS Santa Lucia Foundation, via del Fosso di Fiorano 64, 00143, Rome, Italy
| | | | - Alessandro Leuti
- IRCCS Santa Lucia Foundation, via del Fosso di Fiorano 64, 00143, Rome, Italy
| | | | | | - Marco Molinari
- IRCCS Santa Lucia Foundation, via del Fosso di Fiorano 64, 00143, Rome, Italy
| | - Elisabetta Ferretti
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy.,IRCCS Neuromed, Pozzilli, Italy
| | | | - Valerio Chiurchiù
- IRCCS Santa Lucia Foundation, via del Fosso di Fiorano 64, 00143, Rome, Italy. .,Department of Medicine, Campus Bio-Medico University of Rome, Rome, Italy.
| |
Collapse
|
32
|
Moncrieffe H, Bennett MF, Tsoras M, Luyrink LK, Johnson AL, Xu H, Dare J, Becker ML, Prahalad S, Rosenkranz M, O'Neil KM, Nigrovic PA, Griffin TA, Lovell DJ, Grom AA, Medvedovic M, Thompson SD. Transcriptional profiles of JIA patient blood with subsequent poor response to methotrexate. Rheumatology (Oxford) 2017; 56:1542-1551. [PMID: 28582527 DOI: 10.1093/rheumatology/kex206] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Indexed: 11/13/2022] Open
Abstract
Objective The mechanisms that determine the efficacy or inefficacy of MTX in JIA are ill-defined. The objective of this study was to identify a gene expression transcriptional signature associated with poor response to MTX in patients with JIA. Methods RNA sequencing was used to measure gene expression in peripheral blood mononuclear cells collected from 47 patients with JIA prior to MTX treatment and 14 age-matched controls. Differentially expressed baseline genes between responders and non-responders were evaluated. Biological differences between all JIA patients and controls were explored by constructing a signature of differentially expressed genes. Unsupervised clustering and pathway analysis was performed. Results A signature of 99 differentially expressed genes (Bonferroni-corrected P < 0.05) capturing the biological differences between all JIA patients and controls was identified. Unsupervised clustering of samples based on this list of 99 genes produced subgroups enriched for MTX response status. Comparing this gene signature with reference signatures from sorted cell populations revealed high concordance between the expression signatures of monocytes and of MTX non-responders. CXCL8 (IL-8) was the most significantly differentially expressed gene transcript comparing all JIA patients with controls (Bonferroni-corrected P = 4.12 × 10-10). Conclusion Variability in clinical response to MTX in JIA patients is associated with differences in gene transcripts modulated in monocytes. These gene expression profiles may provide a basis for biomarkers predictive of treatment response.
Collapse
Affiliation(s)
- Halima Moncrieffe
- Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center.,Department of Pediatrics
| | - Mark F Bennett
- Department of Environmental Health, University of Cincinnati
| | - Monica Tsoras
- Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center
| | - Lorie K Luyrink
- Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center
| | - Anne L Johnson
- Division of Rheumatology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Huan Xu
- Department of Environmental Health, University of Cincinnati
| | - Jason Dare
- Pediatrics/Rheumatology, UAMS, Little Rock, AR
| | - Mara L Becker
- Pediatrics, Section of Rheumatology, Children's Mercy Hospitals and Clinics, Kansas City, MO
| | - Sampath Prahalad
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA
| | | | | | - Peter A Nigrovic
- Division of Immunology, Boston Children's Hospital.,Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, MA
| | | | - Daniel J Lovell
- Division of Rheumatology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Alexei A Grom
- Division of Rheumatology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | | | - Susan D Thompson
- Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center.,Department of Pediatrics
| |
Collapse
|
33
|
Filer A, Ward LSC, Kemble S, Davies CS, Munir H, Rogers R, Raza K, Buckley CD, Nash GB, McGettrick HM. Identification of a transitional fibroblast function in very early rheumatoid arthritis. Ann Rheum Dis 2017; 76:2105-2112. [PMID: 28847766 PMCID: PMC5705853 DOI: 10.1136/annrheumdis-2017-211286] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 08/02/2017] [Accepted: 08/05/2017] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Synovial fibroblasts actively regulate the inflammatory infiltrate by communicating with neighbouring endothelial cells (EC). Surprisingly, little is known about how the development of rheumatoid arthritis (RA) alters these immunomodulatory properties. We examined the effects of phase of RA and disease outcome (resolving vs persistence) on fibroblast crosstalk with EC and regulation of lymphocyte recruitment. METHODS Fibroblasts were isolated from patients without synovitis, with resolving arthritis, very early RA (VeRA; symptom ≤12 weeks) and established RA undergoing joint replacement (JRep) surgery. Endothelial-fibroblast cocultures were formed on opposite sides of porous filters. Lymphocyte adhesion from flow, secretion of soluble mediators and interleukin 6 (IL-6) signalling were assessed. RESULTS Fibroblasts from non-inflamed and resolving arthritis were immunosuppressive, inhibiting lymphocyte recruitment to cytokine-treated endothelium. This effect was lost very early in the development of RA, such that fibroblasts no longer suppressed recruitment. Changes in IL-6 and transforming growth factor beta 1 (TGF-β1) signalling appeared critical for the loss of the immunosuppressive phenotype. In the absence of exogenous cytokines, JRep, but not VeRA, fibroblasts activated endothelium to support lymphocyte. CONCLUSIONS In RA, fibroblasts undergo two distinct changes in function: first a loss of immunosuppressive responses early in disease development, followed by the later acquisition of a stimulatory phenotype. Fibroblasts exhibit a transitional functional phenotype during the first 3 months of symptoms that contributes to the accumulation of persistent infiltrates. Finally, the role of IL-6 and TGF-β1 changes from immunosuppressive in resolving arthritis to stimulatory very early in the development of RA. Early interventions targeting 'pathogenic' fibroblasts may be required in order to restore protective regulatory processes.
Collapse
Affiliation(s)
- Andrew Filer
- Rheumatology Research Group, Arthritis Research UK Centre of Excellence in the Pathogenesis of Rheumatoid Arthritis, Institute of Inflammation and Ageing, Birmingham, UK.,Department of Rheumatology, Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, UK
| | - Lewis S C Ward
- Rheumatology Research Group, Arthritis Research UK Centre of Excellence in the Pathogenesis of Rheumatoid Arthritis, Institute of Inflammation and Ageing, Birmingham, UK
| | - Samuel Kemble
- Rheumatology Research Group, Arthritis Research UK Centre of Excellence in the Pathogenesis of Rheumatoid Arthritis, Institute of Inflammation and Ageing, Birmingham, UK
| | | | - Hafsa Munir
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | - Rebekah Rogers
- Rheumatology Research Group, Arthritis Research UK Centre of Excellence in the Pathogenesis of Rheumatoid Arthritis, Institute of Inflammation and Ageing, Birmingham, UK
| | - Karim Raza
- Rheumatology Research Group, Arthritis Research UK Centre of Excellence in the Pathogenesis of Rheumatoid Arthritis, Institute of Inflammation and Ageing, Birmingham, UK.,Department of Rheumatology, Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, UK
| | - Christopher Dominic Buckley
- Rheumatology Research Group, Arthritis Research UK Centre of Excellence in the Pathogenesis of Rheumatoid Arthritis, Institute of Inflammation and Ageing, Birmingham, UK.,Department of Rheumatology, Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, UK
| | - Gerard B Nash
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | - Helen M McGettrick
- Rheumatology Research Group, Arthritis Research UK Centre of Excellence in the Pathogenesis of Rheumatoid Arthritis, Institute of Inflammation and Ageing, Birmingham, UK
| |
Collapse
|
34
|
Interleukin-6 as a Multifunctional Regulator: Inflammation, Immune Response, and Fibrosis. JOURNAL OF SCLERODERMA AND RELATED DISORDERS 2017. [DOI: 10.5301/jsrd.5000265] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Interleukin 6 (IL-6) is a 184-amino acid protein cytokine that is produced by many types of cells and is expressed during states of cellular stress, such as inflammation, infection, wound sites, and cancer. IL-6 levels may increase several thousand-fold in these states and may help to coordinate the response to dysregulation of tissue homeostasis. IL-6 acts through a membrane-bound IL-6 receptor (mIL-6R), which, together with a second receptor, glycoprotein 130 (gp130), leads to the initiation of intracellular signaling (classic signaling). Given that IL-6R is expressed on only a few types of cells, though all cells express gp130, direct stimulation by IL-6 is limited to cells that express mIL-6R. However, IL-6R is also produced as a soluble, secreted protein that, together with IL-6, can stimulate all gp130-expressing cells by a process termed IL-6 trans-signaling. IL-6 trans-signaling can be blocked without affecting IL-6 classic signaling through mIL-6R. IL-6 has major effects on the adaptive and innate immune system and on mesenchymal and stromal responses during inflammation. It promotes the development of pathogenic T-helper 17 T cells and the maturation of B lymphocytes. Many innate immune cells, neutrophils, and monocytes/macrophages produce and respond to IL-6, resulting in autocrine feedback loops that amplify inflammation. IL-6 has been implicated in the pathogenesis of fibrotic diseases in which IL-6 trans-signaling has been shown to stimulate the proliferation of fibroblasts and the release of procollagen and fibronectin.
Collapse
|
35
|
Systemic juvenile idiopathic arthritis: New insights into pathogenesis and cytokine directed therapies. Best Pract Res Clin Rheumatol 2017; 31:505-516. [DOI: 10.1016/j.berh.2018.02.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 01/23/2018] [Accepted: 02/01/2018] [Indexed: 12/13/2022]
|
36
|
Conditioned medium from persistently RSV-infected macrophages alters transcriptional profile and inflammatory response of non-infected macrophages. Virus Res 2017; 230:29-37. [DOI: 10.1016/j.virusres.2017.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 01/02/2017] [Accepted: 01/03/2017] [Indexed: 11/23/2022]
|
37
|
Bracaglia C, Prencipe G, De Benedetti F. Macrophage Activation Syndrome: different mechanisms leading to a one clinical syndrome. Pediatr Rheumatol Online J 2017; 15:5. [PMID: 28095869 PMCID: PMC5240371 DOI: 10.1186/s12969-016-0130-4] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Accepted: 12/27/2016] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Macrophage activation syndrome (MAS) is a severe complication of rheumatic disease in childhood, particularly in systemic Juvenile Idiopathic Arthritis (sJIA). It is characterize by an uncontrolled activation and proliferation of T lymphocytes and macrophages. MAIN CONTENT MAS is currently classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH). The reason is that MAS shares clinical and laboratory features with primary genetic HLH (pHLH). In this context is conceivable that some of the pathogenic mechanisms of pHLH may be involved in other forms of HLH. Heterozygosity for mutations of genes involved in pHLH may lead to a cytotoxic defect and to a development of clinical overt disease. But other different contributors might be involved to the development of MAS such as infections or underlying inflammation. In MAS, the inflammatory status of the patient is a major contributor of the disease. Indeed, the majority of the MAS episodes occurs during active disease phases or at disease onset. In addition, recent evidence in animals and humans suggest that genetics may also play a major role in contributing to hyperinflammation and particularly to macrophages hyper-responses. CONCLUSIONS We hypothesize that HLH may be one unique clinical syndrome, to whose generation different mechanisms may contribute, and maintained by one final effector mechanism.
Collapse
Affiliation(s)
- Claudia Bracaglia
- Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS, Piazza S. Onofrio 4, 00165, Rome, Italy.
| | - Giusi Prencipe
- Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS, Piazza S. Onofrio 4, 00165, Rome, Italy
| | - Fabrizio De Benedetti
- Division of Rheumatology, Ospedale Pediatrico Bambino Gesù IRCCS, Piazza S. Onofrio 4, 00165, Rome, Italy
| |
Collapse
|
38
|
The genus Rosa and arthritis: Overview on pharmacological perspectives. Pharmacol Res 2016; 114:219-234. [DOI: 10.1016/j.phrs.2016.10.029] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 10/23/2016] [Accepted: 10/31/2016] [Indexed: 12/13/2022]
|
39
|
Pretorius E, Akeredolu OO, Soma P, Kell DB. Major involvement of bacterial components in rheumatoid arthritis and its accompanying oxidative stress, systemic inflammation and hypercoagulability. Exp Biol Med (Maywood) 2016; 242:355-373. [PMID: 27889698 PMCID: PMC5298544 DOI: 10.1177/1535370216681549] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
We review the evidence that infectious agents, including those that become dormant within the host, have a major role to play in much of the etiology of rheumatoid arthritis and the inflammation that is its hallmark. This occurs in particular because they can produce cross-reactive (auto-)antigens, as well as potent inflammagens such as lipopolysaccharide that can themselves catalyze further inflammagenesis, including via β-amyloid formation. A series of observables coexist in many chronic, inflammatory diseases as well as rheumatoid arthritis. They include iron dysregulation, hypercoagulability, anomalous morphologies of host erythrocytes, and microparticle formation. Iron dysregulation may be responsible for the periodic regrowth and resuscitation of the dormant bacteria, with concomitant inflammagen production. The present systems biology analysis benefits from the philosophical idea of "coherence," that reflects the principle that if a series of ostensibly unrelated findings are brought together into a self-consistent narrative, that narrative is thereby strengthened. As such, we provide a coherent and testable narrative for the major involvement of (often dormant) bacteria in rheumatoid arthritis.
Collapse
Affiliation(s)
- Etheresia Pretorius
- 1 Department of Physiology, Faculty of Health Sciences, University of Pretoria, Arcadia, Pretoria 0007, South Africa
| | - Oore-Ofe Akeredolu
- 1 Department of Physiology, Faculty of Health Sciences, University of Pretoria, Arcadia, Pretoria 0007, South Africa
| | - Prashilla Soma
- 1 Department of Physiology, Faculty of Health Sciences, University of Pretoria, Arcadia, Pretoria 0007, South Africa
| | - Douglas B Kell
- 2 School of Chemistry, The University of Manchester, Manchester, M13 9PL, UK.,3 The Manchester Institute of Biotechnology, The University of Manchester, Manchester, M1 7DN, UK.,4 Centre for Synthetic Biology of Fine and Speciality Chemicals, The University of Manchester, Manchester, M1 7DN, UK
| |
Collapse
|
40
|
Latourte A, Cherifi C, Maillet J, Ea HK, Bouaziz W, Funck-Brentano T, Cohen-Solal M, Hay E, Richette P. Systemic inhibition of IL-6/Stat3 signalling protects against experimental osteoarthritis. Ann Rheum Dis 2016; 76:748-755. [DOI: 10.1136/annrheumdis-2016-209757] [Citation(s) in RCA: 161] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 08/25/2016] [Accepted: 10/09/2016] [Indexed: 01/22/2023]
Abstract
ObjectiveTo investigate the impact of systemic inhibition of interleukin 6 (IL-6) or signal transducer and activator of transcription (Stat3) in an experimental model of osteoarthritis (OA).MethodsExpression of major catabolic and anabolic factors of cartilage was determined in IL-6-treated mouse chondrocytes and cartilage explants. The anti-IL-6-receptor neutralising antibody MR16-1 was used in the destabilisation of the medial meniscus (DMM) mouse model of OA. Stat3 blockade was investigated by the small molecule Stattic ex vivo and in the DMM model.ResultsIn chondrocytes and cartilage explants, IL-6 treatment reduced proteoglycan content with increased production of matrix metalloproteinase (MMP-3 and MMP-13) and a disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS-4 and ADAMTS-5). IL-6 induced Stat3 and extracellular signal-regulated kinase (ERK) 1/2 signalling but not p38, c-Jun N-terminal kinase or Akt. In the DMM model, Stat3 was activated in cartilage, but neither in the synovium nor in the subchondral bone. Systemic blockade of IL-6 by MR16-1 alleviated DMM-induced OA cartilage lesions, impaired the osteophyte formation and the extent of synovitis. In the same model, Stattic had similar beneficial effects on cartilage and osteophyte formation. Stattic, but not an ERK1/2 inhibitor, significantly counteracted the catabolic effects of IL-6 on cartilage explants and suppressed the IL-6-induced chondrocytes apoptosis.ConclusionIL-6 induces chondrocyte catabolism mainly via Stat3 signalling, a pathway activated in cartilage from joint subjected to DMM. Systemic blockade of IL-6 or STAT-3 can alleviate DMM-induced OA in mice.
Collapse
|
41
|
Castellani G, Paliuri G, Orso G, Paccagnella N, D'Amore C, Facci L, Cima F, Caicci F, Palatini P, Bova S, De Martin S. An intracellular adrenomedullin system reduces IL-6 release via a NF-kB-mediated, cAMP-independent transcriptional mechanism in rat thymic epithelial cells. Cytokine 2016; 88:136-143. [PMID: 27619517 DOI: 10.1016/j.cyto.2016.09.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 08/26/2016] [Accepted: 09/03/2016] [Indexed: 12/19/2022]
Abstract
Thymic epithelial cells (TECs) play a key role in the regulation of central immune tolerance by expressing autoantigens and eliminating self-reactive T cells. In a previous paper we reported that adrenomedullin (ADM) and its co-receptor protein RAMP2 are located intracellularly in newborn human thymic epithelial cells (TECs). This work has two main aims: (1) to examine the cellular localization of ADM and its receptor in TECs of adult Wistar rats to validate this animal model for the study of the ADM system and its function(s) in thymus; (2) to investigate the potential modulating effect of ADM on the NF-kB pathway, which is involved through the production of cytokines such as IL-6, in the maturation of T-lymphocytes and immunological tolerance. Our results show that, similarly to human newborn TECs, ADM is localized to the cytoplasm of adult rat TECs, and RAMP2 is expressed in the nucleus but not in the plasma membrane. Pretreatment of TECs for 4h with ADM significantly reduced lipopolysaccharide (LPS)-induced release of IL-6 (P<0.001) and expression of the p65 subunit of NF-kB, while doubled the expression of IkBα (P<0.001), the physiological inhibitor of NF-kB nuclear translocation. These effects were not mediated by activation of the cAMP pathway, a signalling cascade that is rapidly activated by ADM in cells that express plasma membrane RAMP2, but were the consequence of a reduction in the transcription of p65 (P<0.001) and an increase in the transcription of IkBα (P<0.05). On the basis of these findings we propose that in rat TECs ADM reduces IL-6 secretion by modulating NF-kB genes transcription through an interaction with a receptor localized to the nucleus. This may partly explain the protective effects of ADM in autoimmune diseases and points to the ADM system of TECs as a novel potential target for immunomodulating drugs.
Collapse
Affiliation(s)
- Giulia Castellani
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padova, Italy
| | - Giovanna Paliuri
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padova, Italy
| | - Genny Orso
- Eugenio Medea Scientific Institute, Conegliano, Italy
| | - Nicola Paccagnella
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padova, Italy
| | - Claudio D'Amore
- Department of Surgery and Biomedical Sciences, University of Perugia, Perugia, Italy
| | - Laura Facci
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padova, Italy
| | - Francesca Cima
- Department of Biology, University of Padova, Padova, Italy
| | | | - Pietro Palatini
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padova, Italy
| | - Sergio Bova
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padova, Italy
| | - Sara De Martin
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padova, Italy.
| |
Collapse
|
42
|
Cronin JG, Kanamarlapudi V, Thornton CA, Sheldon IM. Signal transducer and activator of transcription-3 licenses Toll-like receptor 4-dependent interleukin (IL)-6 and IL-8 production via IL-6 receptor-positive feedback in endometrial cells. Mucosal Immunol 2016; 9:1125-36. [PMID: 26813342 PMCID: PMC4990777 DOI: 10.1038/mi.2015.131] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 11/20/2015] [Indexed: 02/07/2023]
Abstract
Interleukin 6 (IL-6), acting via the IL-6 receptor (IL6R) and signal transducer and activator of transcription-3 (STAT3), limits neutrophil recruitment once bacterial infections are resolved. Bovine endometritis is an exemplar mucosal disease, characterized by sustained neutrophil infiltration and elevated IL-6 and IL-8, a neutrophil chemoattractant, following postpartum Gram-negative bacterial infection. The present study examined the impact of the IL6R/STAT3 signaling pathway on IL-8 production by primary endometrial cells in response to short- or long-term exposure to lipopolysaccharide (LPS) from Gram-negative bacteria. Tyrosine phosphorylation of STAT3 is required for DNA binding and expression of specific targets genes. Immunoblotting indicated constitutive tyrosine phosphorylation of STAT3 in endometrial cells was impeded by acute exposure to LPS. After 24 h exposure to LPS, STAT3 returned to a tyrosine phosphorylated state, indicating cross-talk between the Toll-like receptor 4 (TLR4) and the IL6R/STAT3 signaling pathways. This was confirmed by short interfering RNA targeting the IL6R, which abrogated the accumulation of IL-6 and IL-8, induced by LPS. Furthermore, there was a differential endometrial cell response, as the accumulation of IL-6 and IL-8 was dependent on STAT3, suppressor of cytokine signaling 3, and Src kinase signaling in stromal cells, but not epithelial cells. In conclusion, positive feedback through the IL6R amplifies LPS-induced IL-6 and IL-8 production in the endometrium. These findings provide a mechanistic insight into how elevated IL-6 concentrations in the postpartum endometrium during bacterial infection leads to marked and sustained neutrophil infiltration.
Collapse
Affiliation(s)
- J G Cronin
- Institute of Life Science, College of Medicine, Swansea University, Swansea, UK,( or )
| | - V Kanamarlapudi
- Institute of Life Science, College of Medicine, Swansea University, Swansea, UK
| | - C A Thornton
- Institute of Life Science, College of Medicine, Swansea University, Swansea, UK
| | - I M Sheldon
- Institute of Life Science, College of Medicine, Swansea University, Swansea, UK,( or )
| |
Collapse
|
43
|
Yu P, Xiao L, Lin L, Tang L, Chen C, Wang F, Wang Y. STAT3-mediated TLR2/4 pathway upregulation in an IFN-gamma-induced Chlamydia trachomatis persistent infection model. Pathog Dis 2016; 74:ftw076. [PMID: 27502695 DOI: 10.1093/femspd/ftw076] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/29/2016] [Indexed: 01/04/2023] Open
Abstract
Inflammatory pathological injury caused by Chlamydia trachomatis persistent infection could lead to a variety of urogenital tract diseases. By comparing the cytokine production and PRR (pattern recognition receptor) expression between cell models with acute or persistent C. trachomatis infection, our data supported that persistent infection of C. trachomatis led to abnormal activation of toll-like receptor (TLR)2/4 signaling pathway and elevated IL-1α and IL-6 production, which was mediated by signal transducer and activator of transcription3 (STAT3). Studying the effects of abnormal activation of TLR signaling pathway in the cells with C. trachomatis persistent infection could provide new hints for chronic infection treatment and an important experimental basis for understanding the pathogenesis of C. trachomatis persistent infection.
Collapse
Affiliation(s)
- Ping Yu
- Department of Immunology, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China
| | - Lijia Xiao
- Department of Immunology, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China
| | - Lin Lin
- Department of Immunology, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China
| | - Lingli Tang
- Clinical Laboratory, The Second Xiangya Hospital of Central South University, Central South University, Renminzhong Road 139, Changsha, Hunan 410011, China
| | - Chunjing Chen
- Department of Immunology, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China
| | - Fuyan Wang
- Department of Immunology, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China
| | - Yong Wang
- Department of Immunology, School of Basic Medical Science, Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, China
| |
Collapse
|
44
|
Kasama T, Isozaki T, Takahashi R, Miwa Y. Clinical effects of tocilizumab on cytokines and immunological factors in patients with rheumatoid arthritis. Int Immunopharmacol 2016; 35:301-306. [PMID: 27085681 DOI: 10.1016/j.intimp.2016.03.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 03/02/2016] [Accepted: 03/14/2016] [Indexed: 12/15/2022]
Abstract
Interleukin (IL)-6 is one of the crucial proinflammatory cytokines. The dysregulation of IL-6 plays a pivotal role in rheumatoid arthritis (RA) and is involved in several of the common clinical manifestations associated with active RA. Recent therapies targeting IL-6 and tumor necrosis factor (TNF) have resulted in clinical improvements in signs and symptoms, disability and quality of life in patients with early and long-standing RA. Because it has been demonstrated that cytokines and inflammatory/immunological factors appear to be important and sensitive mediators in RA patients treated with tocilizumab and with anti-TNF biologics, it is important to investigate whether tocilizumab administration has any effect(s) on the profiles of cytokines and inflammatory/immunological factors and whether these changes correlate with the clinical improvement in RA disease activity. In this review, we discuss the effects on cytokine regulation and the differentiation of immune cells, especially T cells, after tocilizumab therapy in patients with RA.
Collapse
Affiliation(s)
- Tsuyoshi Kasama
- Division of Rheumatology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan; Division of Rheumatology, Showa University Kototoyosu Hospital, Tokyo, Japan.
| | - Takeo Isozaki
- Division of Rheumatology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Ryo Takahashi
- Division of Rheumatology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Yusuke Miwa
- Division of Rheumatology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| |
Collapse
|
45
|
Zhang M, Bracaglia C, Prencipe G, Bemrich-Stolz CJ, Beukelman T, Dimmitt RA, Chatham WW, Zhang K, Li H, Walter MR, De Benedetti F, Grom AA, Cron RQ. A Heterozygous RAB27A Mutation Associated with Delayed Cytolytic Granule Polarization and Hemophagocytic Lymphohistiocytosis. THE JOURNAL OF IMMUNOLOGY 2016; 196:2492-503. [PMID: 26880764 DOI: 10.4049/jimmunol.1501284] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 01/12/2016] [Indexed: 11/19/2022]
Abstract
Frequently fatal, primary hemophagocytic lymphohistiocytosis (HLH) occurs in infancy resulting from homozygous mutations in NK and CD8 T cell cytolytic pathway genes. Secondary HLH presents after infancy and may be associated with heterozygous mutations in HLH genes. We report two unrelated teenagers with HLH and an identical heterozygous RAB27A mutation (c.259G→C). We explore the contribution of this Rab27A missense (p.A87P) mutation on NK cell cytolytic function by cloning it into a lentiviral expression vector prior to introduction into the human NK-92 cell line. NK cell degranulation (CD107a expression), target cell conjugation, and K562 target cell lysis was compared between mutant- and wild-type-transduced NK-92 cells. Polarization of granzyme B to the immunologic synapse and interaction of mutant Rab27A (p.A87P) with Munc13-4 were explored by confocal microscopy and proximity ligation assay, respectively. Overexpression of the RAB27A mutation had no effect on cell conjugate formation between the NK and target cells but decreased NK cell cytolytic activity and degranulation. Moreover, the mutant Rab27A protein decreased binding to Munc13-4 and delayed granzyme B polarization toward the immunologic synapse. This heterozygous RAB27A mutation blurs the genetic distinction between primary and secondary HLH by contributing to HLH via a partial dominant-negative effect.
Collapse
Affiliation(s)
- Mingce Zhang
- Division of Pediatric Rheumatology, University of Alabama at Birmingham, Birmingham, AL 35233
| | - Claudia Bracaglia
- Divisione di Reumatologia Pediatrica, Ospedale Pediatrico Bambino Gesù, 00165 Rome, Italy
| | - Giusi Prencipe
- Divisione di Reumatologia Pediatrica, Ospedale Pediatrico Bambino Gesù, 00165 Rome, Italy
| | - Christina J Bemrich-Stolz
- Division of Pediatric Hematology-Oncology, University of Alabama at Birmingham, Birmingham, AL 35233
| | - Timothy Beukelman
- Division of Pediatric Rheumatology, University of Alabama at Birmingham, Birmingham, AL 35233; Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Reed A Dimmitt
- Division of Pediatric Gastroenterology, University of Alabama at Birmingham, Birmingham, AL 35233
| | - W Winn Chatham
- Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Kejian Zhang
- Human Genetics, University of Cincinnati, Cincinnati, OH 45229
| | - Hao Li
- Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Mark R Walter
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294; and
| | - Fabrizio De Benedetti
- Divisione di Reumatologia Pediatrica, Ospedale Pediatrico Bambino Gesù, 00165 Rome, Italy
| | - Alexei A Grom
- Division of Pediatric Rheumatology, University of Cincinnati, Cincinnati, OH 45229
| | - Randy Q Cron
- Division of Pediatric Rheumatology, University of Alabama at Birmingham, Birmingham, AL 35233; Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL 35294;
| |
Collapse
|
46
|
Cifaldi L, Prencipe G, Caiello I, Bracaglia C, Locatelli F, De Benedetti F, Strippoli R. Inhibition of natural killer cell cytotoxicity by interleukin-6: implications for the pathogenesis of macrophage activation syndrome. Arthritis Rheumatol 2016; 67:3037-46. [PMID: 26251193 DOI: 10.1002/art.39295] [Citation(s) in RCA: 196] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 07/16/2015] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Systemic juvenile idiopathic arthritis (JIA) is associated with high levels of interleukin-6 (IL-6) in the serum and synovial fluid, and impairment of natural killer (NK) cell function is often observed. This study was undertaken to evaluate a possible link between these 2 biologic findings and whether they may be associated with the development of macrophage activation syndrome, a condition frequently observed in systemic JIA. METHODS Splenocytes from wild-type (WT) or IL-6-transgenic (Tg) mice were evaluated for NK cell cytotoxicity using a (51) Cr-release assay. Numbers of NK cells and expression of perforin, granzyme B, CD69, and CD107a were evaluated by flow cytometry. Human peripheral blood mononuclear cells (PBMCs) isolated from healthy donors were treated with IL-6 and cultured in the presence or absence of tocilizumab (TCZ), an IL-6 receptor blocker. Human polyclonal NK cells from healthy donor PBMCs were evaluated for cell cytotoxicity and expression of perforin, granzyme B, and CD107a. PBMCs harvested from patients with systemic JIA during periods of active or inactive disease were left untreated or treated with IL-6 in combination with soluble IL-6 receptor and analyzed for the expression of perforin and granzyme B. RESULTS Splenic NK cell cytotoxicity was reduced in IL-6-Tg mice compared to WT mice. Levels of CD69 and CD107a showed no significant differences, whereas expression of perforin and granzyme B was impaired in NK cells from IL-6-Tg mice. Exposure of human peripheral blood NK cells to IL-6 led to reduced expression of perforin and granzyme B. Culturing human polyclonal NK cells in the presence of TCZ significantly increased cell cytotoxicity, and also increased expression of perforin and granzyme B. In patients with systemic JIA, a reduction in IL-6 plasma levels during disease remission correlated with the rescue of perforin and granzyme B expression in NK cells from these patients. CONCLUSION In both mice and humans, IL-6 down-modulated the cytotoxic activity of NK cells. This decrease was associated with reduced perforin and granzyme B levels in the absence of altered granule exocytosis.
Collapse
Affiliation(s)
| | | | - Ivan Caiello
- IRCCS Bambino Gesú Children's Hospital, Rome, Italy
| | | | - Franco Locatelli
- IRCCS Bambino Gesú Children's Hospital, Rome, Italy, and University of Pavia, Pavia, Italy
| | | | - Raffaele Strippoli
- IRCCS Bambino Gesú Children's Hospital and Sapienza University of Rome, Rome, Italy
| |
Collapse
|
47
|
Molecular Mechanisms Underlying Peritoneal EMT and Fibrosis. Stem Cells Int 2016; 2016:3543678. [PMID: 26941801 PMCID: PMC4752998 DOI: 10.1155/2016/3543678] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 01/10/2016] [Indexed: 12/26/2022] Open
Abstract
Peritoneal dialysis is a form of renal replacement alternative to the hemodialysis. During this treatment, the peritoneal membrane acts as a permeable barrier for exchange of solutes and water. Continual exposure to dialysis solutions, as well as episodes of peritonitis and hemoperitoneum, can cause acute/chronic inflammation and injury to the peritoneal membrane, which undergoes progressive fibrosis, angiogenesis, and vasculopathy, eventually leading to discontinuation of the peritoneal dialysis. Among the different events controlling this pathological process, epithelial to mesenchymal transition of mesothelial cells plays a main role in the induction of fibrosis and in subsequent functional deterioration of the peritoneal membrane. Here, the main extracellular inducers and cellular players are described. Moreover, signaling pathways acting during this process are elucidated, with emphasis on signals delivered by TGF-β family members and by Toll-like/IL-1β receptors. The understanding of molecular mechanisms underlying fibrosis of the peritoneal membrane has both a basic and a translational relevance, since it may be useful for setup of therapies aimed at counteracting the deterioration as well as restoring the homeostasis of the peritoneal membrane.
Collapse
|
48
|
Kang NJ, Han SC, Kang HJ, Ko G, Yoon WJ, Kang HK, Yoo ES. Anti-Inflammatory Effect of 3-Bromo-4,5-Dihydroxybenzaldehyde, a Component of Polysiphonia morrowii, In Vivo and In Vitro. Toxicol Res 2015; 33:325-332. [PMID: 29071017 PMCID: PMC5654201 DOI: 10.5487/tr.2017.33.4.325] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 08/21/2017] [Accepted: 09/14/2017] [Indexed: 12/18/2022] Open
Abstract
3-Bromo-4,5-dihydroxybenzaldehyde (BDB) is a natural bromophenol compound that is most commonly isolated from red algae. The present study was designed to investigate the anti-inflammatory properties of BDB on atopic dermatitis (AD) in mice induced by 2,4-dinitrochlorobenzene (DNCB) and on lipopolysaccharide (LPS)-stimulated murine macrophages. BDB treatment (100 mg/kg) resulted in suppression of the development of AD symptoms compared with the control treatment (induction-only), as demonstrated by reduced immunoglobulin E levels in serum, smaller lymph nodes with reduced thickness and length, a decrease in ear edema, and reduced levels of inflammatory cell infiltration in the ears. In RAW 264.7 murine macrophages, BDB (12.5, 25, 50, and 100 μM) suppressed the production of interleukin-6, a proinflammatory cytokine, in a dose-dependent manner. BDB also had an inhibitory effect on the phosphorylation of nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and signal transducer and activator of transcription 1 (STAT1; Tyr 701), two major signaling molecules involved in cellular inflammation. Taken together, the results show that BDB treatment alleviates inflammatory responses in an atopic dermatitis mouse model and RAW 264.7 macrophages. These results suggest that BDB may be a useful therapeutic strategy for treating conditions involving allergic inflammation such as atopic dermatitis.
Collapse
Affiliation(s)
- Na-Jin Kang
- Department of Medicine, School of Medicine, Jeju National University, Jeju, Korea
| | - Sang-Chul Han
- Department of Medicine, School of Medicine, Jeju National University, Jeju, Korea
| | - Hyun-Jae Kang
- Department of Medicine, School of Medicine, Jeju National University, Jeju, Korea
| | - Geum Ko
- Department of Medicine, School of Medicine, Jeju National University, Jeju, Korea
| | - Weon-Jong Yoon
- Jeju Biodiversity Research Institute (JBRI), Jeju Technopark (JTP), Jeju, Korea
| | - Hee-Kyoung Kang
- Department of Medicine, School of Medicine, Jeju National University, Jeju, Korea
| | - Eun-Sook Yoo
- Department of Medicine, School of Medicine, Jeju National University, Jeju, Korea
| |
Collapse
|
49
|
Kuuliala K, Kuuliala A, Koivuniemi R, Oksanen S, Hämäläinen M, Moilanen E, Kautiainen H, Leirisalo-Repo M, Repo H. Constitutive STAT3 Phosphorylation in Circulating CD4+ T Lymphocytes Associates with Disease Activity and Treatment Response in Recent-Onset Rheumatoid Arthritis. PLoS One 2015; 10:e0137385. [PMID: 26353115 PMCID: PMC4564221 DOI: 10.1371/journal.pone.0137385] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 08/16/2015] [Indexed: 01/05/2023] Open
Abstract
The aim of the present study was to examine constitutive signal transducer and activator of transcription 3 (STAT3) phosphorylation in circulating leukocytes as a candidate biomarker in rheumatoid arthritis (RA). 25 patients with recent-onset, untreated RA provided samples for whole blood flow cytometric determination of intracellular STAT3 phosphorylation, expressed as relative fluorescence units. The occurrence of constitutive STAT3 phosphorylation was evaluated by determining proportion of STAT3-phosphorylated cells among different leukocyte subtypes. Plasma levels of interleukin (IL)-6, IL-17 and IL-21 were measured by immunoassay, radiographs of hands and feet were examined and disease activity score (DAS28) was determined. Biomarkers were restudied and treatment response (according to European League Against Rheumatism) was determined after 12 months of treatment with disease-modifying antirheumatic drugs. At baseline, constitutive phosphorylation of STAT3 occurred in CD4+ T cells of 14 (56%) patients, CD8+ T cells of 13 (52%) patients, in CD19+ B cells of 7 (28%) patients, and in CD14+ monocytes of 12 (48%) patients. STAT3 phosphorylation levels of CD4+ T cells associated with DAS28, and those of all leukocyte subtypes studied associated with erosive disease. The presence of constitutive STAT3 phosphorylation in CD4+ T lymphocytes, pSTAT3 fluorescence intensity of CD4+ and CD8+ T cells and C-reactive protein (CRP) levels at baseline associated with good treatment response. In conclusion, constitutive STAT3 phosphorylation in circulating CD4+ T cells is common in recent-onset untreated RA and associates with good treatment response in patients characterized by high disease activity and the presence of systemic inflammation.
Collapse
Affiliation(s)
- Krista Kuuliala
- Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Antti Kuuliala
- Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Riitta Koivuniemi
- Rheumatology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Suvi Oksanen
- Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Mari Hämäläinen
- Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital, Tampere, Finland
| | - Eeva Moilanen
- Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital, Tampere, Finland
| | - Hannu Kautiainen
- Primary Health Care, Helsinki University Hospital and University of Helsinki, Helsinki, Finland; General Practice, Helsinki University Hospital and University of Helsinki, Helsinki, Finland; Unit of Primary Health Care, Kuopio University Hospital, Kuopio, Finland
| | - Marjatta Leirisalo-Repo
- Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland; Rheumatology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Heikki Repo
- Bacteriology and Immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| |
Collapse
|
50
|
Ghosh C, Bishayi B. Toll-like receptor 2 and 6 interdependency in the erosive stage of Staphylococcus aureus induced septic arthritis mediated by IFN-γ and IL-6 – A possible involvement of IL-17 in the progression of the disease. Immunobiology 2015; 220:910-23. [DOI: 10.1016/j.imbio.2015.01.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Revised: 01/27/2015] [Accepted: 01/28/2015] [Indexed: 12/21/2022]
|