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Shao KM, Shao WH. Transcription Factors in the Pathogenesis of Lupus Nephritis and Their Targeted Therapy. Int J Mol Sci 2024; 25:1084. [PMID: 38256157 PMCID: PMC10816397 DOI: 10.3390/ijms25021084] [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: 12/06/2023] [Revised: 01/07/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Systemic lupus erythematosus (SLE) is a prototype inflammatory autoimmune disease, characterized by breakdown of immunotolerance to self-antigens. Renal involvement, known as lupus nephritis (LN), is one of the leading causes of morbidity and a significant contributor to mortality in SLE. Despite current pathophysiological advances, further studies are needed to fully understand complex mechanisms underlying the development and progression of LN. Transcription factors (TFs) are proteins that regulate the expression of genes and play a crucial role in the development and progression of LN. The mechanisms of TF promoting or inhibiting gene expression are complex, and studies have just begun to reveal the pathological roles of TFs in LN. Understanding TFs in the pathogenesis of LN can provide valuable insights into this disease's mechanisms and potentially lead to the development of targeted therapies for its management. This review will focus on recent findings on TFs in the pathogenesis of LN and newly developed TF-targeted therapy in renal inflammation.
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Affiliation(s)
- Kasey M. Shao
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA
| | - Wen-Hai Shao
- Division of Rheumatology, Allergy and Immunology, Department of Internal Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
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Wang X, Richard ML, Caldwell TS, Sundararaj K, Sato S, Nowling TK, Zhang XK. Role of the transcription factor Fli-1 on the CXCL10/CXCR3 Axis. Front Immunol 2023; 14:1219279. [PMID: 37790939 PMCID: PMC10543418 DOI: 10.3389/fimmu.2023.1219279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 08/29/2023] [Indexed: 10/05/2023] Open
Abstract
The transcription factor Fli-1, a member of the ETS family of transcription factors, is implicated in the pathogenesis of lupus disease. Reduced Fli-1 expression in lupus mice leads to decreased renal Cxcl10 mRNA levels and renal infiltrating CXCR3+ T cells that parallels reduced renal inflammatory cell infiltration and renal damage. Inflammatory chemokine CXCL10 is critical for attracting inflammatory cells expressing the chemokine receptor CXCR3. The CXCL10/CXCR3 axis plays a role in the pathogenesis of various inflammatory diseases including lupus. Our data here demonstrate that renal CXCL10 protein levels are significantly lower in Fli-1 heterozygous MRL/lpr mice compared to wild-type MRL/lpr mice. Knockdown of Fli-1 significantly reduced CXCL10 secretion in mouse and human endothelial cells, and human mesangial cells, upon LPS or TNFα stimulation. The Fli-1 inhibitor, Camptothecin, significantly reduced CXCL10 production in human monocyte cells upon interferon stimulation. Four putative Ets binding sites in the Cxcl10 promoter showed significant enrichment for FLI-1; however, FLI-1 did not directly drive transcription from the human or mouse promoters, suggesting FLI-1 may regulate CXCL10 expression indirectly. Our results also suggest that the DNA binding domain of FLI-1 is necessary for regulation of human hCXCR3 promotor activity in human T cells and interactions with co-activators. Together, these results support a role for FLI-1 in modulating the CXCL10-CXCR3 axis by directly or indirectly regulating the expression of both genes to impact lupus disease development. Signaling pathways or drugs that reduce FLI-1 expression may offer novel approaches to lupus treatment.
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Affiliation(s)
- Xuan Wang
- Department of General Practice, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Medicine, Division of Rheumatology & Immunology, Medical University of South Carolina, Charleston, SC, United States
| | - Mara Lennard Richard
- Department of Medicine, Division of Rheumatology & Immunology, Medical University of South Carolina, Charleston, SC, United States
| | - Tomika S. Caldwell
- Department of Medicine, Division of Rheumatology & Immunology, Medical University of South Carolina, Charleston, SC, United States
| | - Kamala Sundararaj
- Department of Medicine, Division of Rheumatology & Immunology, Medical University of South Carolina, Charleston, SC, United States
| | - Shuzo Sato
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Tamara K. Nowling
- Department of Medicine, Division of Rheumatology & Immunology, Medical University of South Carolina, Charleston, SC, United States
| | - Xian K. Zhang
- Department of Medicine, Division of Rheumatology & Immunology, Medical University of South Carolina, Charleston, SC, United States
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Sato S, Zhang XK, Matsuoka N, Sumichika Y, Saito K, Yoshida S, Matsumoto H, Temmoku J, Fujita Y, Asano T, Migita K. Transcription factor Fli-1 impacts the expression of CXCL13 and regulates immune cell infiltration into the kidney in MRL/lpr mouse. Lupus Sci Med 2023; 10:10/1/e000870. [PMID: 37094946 PMCID: PMC10152041 DOI: 10.1136/lupus-2022-000870] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 04/06/2023] [Indexed: 04/26/2023]
Abstract
OBJECTIVE Friend leukaemia virus integration 1 (Fli-1) regulates chemokine/cytokine expression and thus plays an important role in the development of lupus nephritis. Chemokine CXC ligand 13 (CXCL13) is a chemokine that promotes the formation of ectopic lymphoid structures and has been reported to be associated with the pathogenesis of lupus nephritis. The relationship between Fli-1 and CXCL13 is unknown. This study aims to elucidate whether Fli-1 impacts CXCL13 expression and contributes to the progression of lupus-like nephritis in adult MRL/lpr mouse. METHODS Serum CXCL13 levels were measured in adult wild-type (WT) MRL/lpr mice and Fli-1 heterozygote knockout (Fli-1+/-) MRL/lpr mice (4 months old or older) using ELISA. Renal mRNA expression (CXCL13 and related molecules) was measured using real-time PCR method. Kidneys were removed, stained and evaluated using a pathology scoring system. The grade of CXCL13 or CXC-chemokine receptor type 5 (CXCR5)-positive immune cell infiltration into the kidney was evaluated using immunostaining with anti-CXCL13 or anti-CXCR5 antibodies. We also used immunofluorescence staining with CXCL13- and CD11b-specific antibodies to detect the infiltration of CXCL13/CD11b double-positive immune cells. RESULTS Serum CXCL13 levels in Fli-1+/- MRL/lpr mice were significantly lower than that in WT MRL/lpr mice (545.5 and 960.5 pg/mL, p=0.02). Renal expression of CXCL13 mRNA and SRY-related HMG box4 (Sox4) (an important factor for B-cell development) levels were significantly lower in Fli-1+/- MRL/lpr mice. Renal histology scores in WT MRL/lpr mice revealed significantly increased glomerular inflammation. Despite similar interstitial immune cell infiltration into the kidney, the number of CXCL13- and CXCR5-positive cells was significantly lower in Fli-1+/- MRL/lpr mice than in WT mice. Furthermore, immunofluorescence staining revealed that Fli-1+/-MRL/lpr mice had significantly fewer CXCL13/CD11b double-positive immune cells. CONCLUSION Fli-1 regulates renal Sox4 mRNA expression and infiltration of CXCR5-positive cells as well as CXCL13/CD11b double-positive immune cells into the kidney, which affects CXCL13 expression and lupus-like nephritis.
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Affiliation(s)
- Shuzo Sato
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Xian K Zhang
- Department of Rheumatology and Immunology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Naoki Matsuoka
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Yuya Sumichika
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Kenji Saito
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Shuhei Yoshida
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Haruki Matsumoto
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Jumpei Temmoku
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Yuya Fujita
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Tomoyuki Asano
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Kiyoshi Migita
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
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He YS, Yang XK, Hu YQ, Xiang K, Pan HF. Emerging role of Fli1 in autoimmune diseases. Int Immunopharmacol 2020; 90:107127. [PMID: 33234418 DOI: 10.1016/j.intimp.2020.107127] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 09/21/2020] [Accepted: 10/19/2020] [Indexed: 11/25/2022]
Abstract
The Ets transcription factor family exerts crucial role in cell proliferation, apoptosis, differentiation and migration. Friend leukemia integration 1 (Fli1), a member of the Ets family, is expressed in fibroblasts, endothelial cells and immune cells. Fli1 gene is participated in the development, proliferation, activation, migration and other processes of immune cells. Fli1 can also affect the function of immune cells by regulating cytokines and chemokines. Emerging evidence has shown that Fli1 is implicated in the etiology of several autoimmune diseases, including systemic sclerosis (SSc) and systemic lupus erythematosus (SLE). In this review, we mainly discuss the current evidence for the role of Fli1 in these diseases.
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Affiliation(s)
- Yi-Sheng He
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, China
| | - Xiao-Ke Yang
- Department of Rheumatology and Immunology, the First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, Anhui, China
| | - Yu-Qian Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, China
| | - Kun Xiang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, China
| | - Hai-Feng Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, China.
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5
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Wu Y, Li P, Goodwin AJ, Cook JA, Halushka PV, Zingarelli B, Fan H. miR-145a Regulation of Pericyte Dysfunction in a Murine Model of Sepsis. J Infect Dis 2020; 222:1037-1045. [PMID: 32285112 PMCID: PMC7430167 DOI: 10.1093/infdis/jiaa184] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/10/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Sepsis is a life-threatening systemic disease with severe microvascular dysfunction. Pericytes preserve vascular homeostasis. To our knowledge, the potential roles of microRNAs in sepsis-induced pericyte dysfunction have not been explored. METHODS We determined lung pericyte expression of miR-145a in cecal ligation and puncture (CLP)-induced sepsis. Mouse lung pericytes were isolated and transfected with a miR-145a mimic, followed by stimulation with lipopolysaccharide (LPS). We measured inflammatory cytokine levels. To assess the functions of miR-145a in vivo, we generated a pericyte-specific miR-145a-knockout mouse and determined sepsis-induced organ injury, lung and renal vascular leakage, and mouse survival rates. We used RNA sequencing and Western blotting to analyze the signaling pathways regulated by miR-145a. RESULTS CLP led to decreased miR-145a expression in lung pericytes. The miR-145a mimic inhibited LPS-induced increases in cytokines. In CLP-induced sepsis, pericytes lacking miR-145a exhibited increased lung and kidney vascular leakage and reduced survival rates. We found that miR-145a could suppress LPS-induced NF-κB activation. In addition, we confirmed that the transcription factor Friend leukemia virus integration 1 (Fli-1) is a target of miR-145a and that Fli-1 activates NF-κB signaling. CONCLUSION Our results demonstrated that pericyte miR-145a mediates sepsis-associated microvascular dysfunction, potentially by means of Fli-1-mediated modulation of NF-κB signaling.
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Affiliation(s)
- Yan Wu
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Pengfei Li
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Andrew J Goodwin
- Division of Pulmonary, Critical Care, Allergy, and Sleep Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
| | - James A Cook
- Department of Neurosciences, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Perry V Halushka
- Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
- Department of Pharmacology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Basilia Zingarelli
- Division of Critical Care Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Hongkuan Fan
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
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Sato S, Zhang XK, Temmoku J, Fujita Y, Matsuoka N, Yashiro-Furuya M, Asano T, Kobayashi H, Watanabe H, Migita K. Ets Family Transcription Factor Fli-1 Promotes Leukocyte Recruitment and Production of IL-17A in the MRL/Lpr Mouse Model of Lupus Nephritis. Cells 2020; 9:cells9030714. [PMID: 32183259 PMCID: PMC7140643 DOI: 10.3390/cells9030714] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 03/08/2020] [Accepted: 03/13/2020] [Indexed: 12/20/2022] Open
Abstract
The transcription factor Friend leukemia integration 1 (Fli-1) regulates the expression of numerous cytokines and chemokines and alters the progression of lupus nephritis in humans and in the MRL/MpJ-Faslpr (MRL/lpr) mouse model. Th17-mediated immune responses are notably important as they promote ongoing inflammation. The purpose of this study is to determine the impact of Fli-1 on expression of interleukin-17A (IL-17A) and the infiltration of immune cells into the kidney. IL-17A concentrations were measured by ELISA in sera collected from MRL/lpr Fli-1-heterozygotes (Fli-1+/−) and MRL/lpr Fli-1+/+ control littermates. Expression of IL-17A and related proinflammatory mediators was measured by real-time polymerase chain reaction (RT-PCR). Immunofluorescence staining was performed on renal tissue from MRL/lpr Fli-1+/− and control littermates using anti-CD3, anti-CD4, and anti-IL-17A antibodies to detect Th17 cells and anti-CCL20 and anti-CD11b antibodies to identify CCL20+ monocytes. The expression of IL-17A in renal tissue was significantly reduced; this was accompanied by decreases in expression of IL-6, signal transducer and activator of transcription 3 (STAT3), and IL-1β. Likewise, we detected fewer CD3+IL-17+ and CD4+IL-17+ cells in renal tissue of MLR/lpr Fli-1+/− mice and significantly fewer CCL20+CD11b+ monocytes. In conclusion, partial deletion of Fli-1 has a profound impact on IL-17A expression and on renal histopathology in the MRL/lpr mouse.
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Affiliation(s)
- Shuzo Sato
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan; (J.T.); (Y.F.); (N.M.); (M.Y.-F.); (T.A.); (H.K.); (H.W.); (K.M.)
- Correspondence: (S.S.); (X.K.Z.); Tel.: +81-24-547-1171 (S.S.); +1-843-792-1991 (X.K.Z.); Fax: +81-24-547-1172 (S.S.); +1-843-792-7121 (X.K.Z.)
| | - Xian K. Zhang
- Division of Rheumatology and Immunology, Medical University of South Carolina, Charleston, SC 29425, USA
- Correspondence: (S.S.); (X.K.Z.); Tel.: +81-24-547-1171 (S.S.); +1-843-792-1991 (X.K.Z.); Fax: +81-24-547-1172 (S.S.); +1-843-792-7121 (X.K.Z.)
| | - Jumpei Temmoku
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan; (J.T.); (Y.F.); (N.M.); (M.Y.-F.); (T.A.); (H.K.); (H.W.); (K.M.)
| | - Yuya Fujita
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan; (J.T.); (Y.F.); (N.M.); (M.Y.-F.); (T.A.); (H.K.); (H.W.); (K.M.)
| | - Naoki Matsuoka
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan; (J.T.); (Y.F.); (N.M.); (M.Y.-F.); (T.A.); (H.K.); (H.W.); (K.M.)
| | - Makiko Yashiro-Furuya
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan; (J.T.); (Y.F.); (N.M.); (M.Y.-F.); (T.A.); (H.K.); (H.W.); (K.M.)
| | - Tomoyuki Asano
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan; (J.T.); (Y.F.); (N.M.); (M.Y.-F.); (T.A.); (H.K.); (H.W.); (K.M.)
| | - Hiroko Kobayashi
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan; (J.T.); (Y.F.); (N.M.); (M.Y.-F.); (T.A.); (H.K.); (H.W.); (K.M.)
| | - Hiroshi Watanabe
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan; (J.T.); (Y.F.); (N.M.); (M.Y.-F.); (T.A.); (H.K.); (H.W.); (K.M.)
| | - Kiyoshi Migita
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan; (J.T.); (Y.F.); (N.M.); (M.Y.-F.); (T.A.); (H.K.); (H.W.); (K.M.)
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Wang C, Song J, Liu W, Yao Y, Kapranov P, Sample KM, Gajendran B, Zacksenhaus E, Hao X, Ben-David Y. FLI1 promotes protein translation via the transcriptional regulation of MKNK1 expression. Int J Oncol 2019; 56:430-438. [PMID: 31894299 PMCID: PMC6959374 DOI: 10.3892/ijo.2019.4943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 11/18/2019] [Indexed: 01/16/2023] Open
Abstract
The disruption of protein translation machinery is a common feature of cancer initiation and progression, and drugs that target protein translation offer new avenues for therapy. The translation initiation factor, eukaryotic initiation factor 4E (eIF4E), is induced in a number of cancer cell lines and is one such candidate for therapeutic intervention. Friend leukemia integration 1 (FLI1) is a potent oncogenic transcription factor that promotes various types of cancer by promoting several hallmarks of cancer progression. FLI1 has recently been implicated in protein translation through yet unknown mechanisms. This study identified a positive association between FLI1 expression and mitogen-activated protein kinase (MAPK)-interacting serine/threonine kinase1 (MKNK1), the immediate upstream regulator of the eIF4E initiation factor. The short hairpin RNA (shRNA)-mediated silencing or overexpression of FLI1 in leukemic cell lines downregulated or upregulated MKNK1 expression, respectively. Promoter analysis identified a potent FLI1 binding site in the regulatory region of the MKNK1 promoter. In transient transfection experiments, FLI1 increased MKNK1 promoter activity, which was blocked by mutating the FLI1 binding site. FLI1 specifically affected the expression of MKNK1, but not that of MKNK2. The siRNA-mediated downregulation of MKNK1 downregulated the expression of survivin (BIRC5) and significantly suppressed cell proliferation in culture. FLI1 inhibitory compounds were shown to downregulate this oncogene through the suppression of MAPK/extracellular-regulated kinase (ERK) signaling and the subsequent activation of miR-145, leading to a lower MKNK1 expression and the suppression of leukemic growth. These results uncover a critical role for FLI1 in the control of protein translation and the importance of targeting its function and downstream mediators, such as MKNK1, for cancer therapy.
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Affiliation(s)
- Chunlin Wang
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Province Science City, High Tech Zone, Baiyun, Guiyang, Guizhou 550014, P.R. China
| | - Jialei Song
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Province Science City, High Tech Zone, Baiyun, Guiyang, Guizhou 550014, P.R. China
| | - Wuling Liu
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Province Science City, High Tech Zone, Baiyun, Guiyang, Guizhou 550014, P.R. China
| | - Yao Yao
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Province Science City, High Tech Zone, Baiyun, Guiyang, Guizhou 550014, P.R. China
| | - Philipp Kapranov
- Institute of Genomics, School of Biomedical Sciences, Huaqiao University, Xiamen, Fujian 361021, P.R. China
| | - Klarke M Sample
- Central Laboratory, Guizhou Provincial People's Hospital, The Affiliated Hospital of Guizhou University Medical College, Guiyang, Guizhou 550002, P.R. China
| | - Babu Gajendran
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Province Science City, High Tech Zone, Baiyun, Guiyang, Guizhou 550014, P.R. China
| | - Eldad Zacksenhaus
- Department of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Xiaojiang Hao
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Province Science City, High Tech Zone, Baiyun, Guiyang, Guizhou 550014, P.R. China
| | - Yaacov Ben-David
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Province Science City, High Tech Zone, Baiyun, Guiyang, Guizhou 550014, P.R. China
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Barry S, Carlsen E, Marques P, Stiles CE, Gadaleta E, Berney DM, Roncaroli F, Chelala C, Solomou A, Herincs M, Caimari F, Grossman AB, Crnogorac-Jurcevic T, Haworth O, Gaston-Massuet C, Korbonits M. Tumor microenvironment defines the invasive phenotype of AIP-mutation-positive pituitary tumors. Oncogene 2019; 38:5381-5395. [PMID: 30867568 PMCID: PMC6755983 DOI: 10.1038/s41388-019-0779-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 12/07/2018] [Accepted: 01/18/2019] [Indexed: 12/17/2022]
Abstract
The molecular mechanisms leading to aryl hydrocarbon receptor interacting protein (AIP) mutation-induced aggressive, young-onset growth hormone-secreting pituitary tumors are not fully understood. In this study, we have identified that AIP-mutation-positive tumors are infiltrated by a large number of macrophages compared to sporadic tumors. Tissue from pituitary-specific Aip-knockout (AipFlox/Flox;Hesx1Cre/+) mice recapitulated this phenotype. Our human pituitary tumor transcriptome data revealed the "epithelial-to-mesenchymal transition (EMT) pathway" as one of the most significantly altered pathways in AIPpos tumors. Our in vitro data suggest that bone marrow-derived macrophage-conditioned media induces more prominent EMT-like phenotype and enhanced migratory and invasive properties in Aip-knockdown somatomammotroph cells compared to non-targeting controls. We identified that tumor-derived cytokine CCL5 is upregulated in AIP-mutation-positive human adenomas. Aip-knockdown GH3 cell-conditioned media increases macrophage migration, which is inhibited by the CCL5/CCR5 antagonist maraviroc. Our results suggest that a crosstalk between the tumor and its microenvironment plays a key role in the invasive nature of AIP-mutation-positive tumors and the CCL5/CCR5 pathway is a novel potential therapeutic target.
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Affiliation(s)
- Sayka Barry
- Centre for Endocrinology, William Harvey Research Institute, Barts and The London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, UK
| | | | - Pedro Marques
- Centre for Endocrinology, William Harvey Research Institute, Barts and The London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Craig E Stiles
- Centre for Endocrinology, William Harvey Research Institute, Barts and The London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Emanuela Gadaleta
- Molecular Oncology, Barts Cancer Institute, Barts and The London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Dan M Berney
- Molecular Oncology, Barts Cancer Institute, Barts and The London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Federico Roncaroli
- Division of Neuroscience & Experimental Psychology, University of Manchester, Manchester, M13 9PL, UK
| | - Claude Chelala
- Molecular Oncology, Barts Cancer Institute, Barts and The London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Antonia Solomou
- Centre for Endocrinology, William Harvey Research Institute, Barts and The London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Maria Herincs
- Centre for Endocrinology, William Harvey Research Institute, Barts and The London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Francisca Caimari
- Centre for Endocrinology, William Harvey Research Institute, Barts and The London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Ashley B Grossman
- Centre for Endocrinology, William Harvey Research Institute, Barts and The London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Tatjana Crnogorac-Jurcevic
- Molecular Oncology, Barts Cancer Institute, Barts and The London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Oliver Haworth
- Centre for Endocrinology, William Harvey Research Institute, Barts and The London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Carles Gaston-Massuet
- Centre for Endocrinology, William Harvey Research Institute, Barts and The London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Márta Korbonits
- Centre for Endocrinology, William Harvey Research Institute, Barts and The London School of Medicine, Queen Mary University of London, London, EC1M 6BQ, UK.
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The Impact of Protein Acetylation/Deacetylation on Systemic Lupus Erythematosus. Int J Mol Sci 2018; 19:ijms19124007. [PMID: 30545086 PMCID: PMC6321219 DOI: 10.3390/ijms19124007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/30/2018] [Accepted: 12/10/2018] [Indexed: 02/08/2023] Open
Abstract
Systemic lupus erythematosus (SLE) is a chronic inflammatory autoimmune disease in which the body’s immune system mistakenly attacks healthy cells. Although the exact cause of SLE has not been identified, it is clear that both genetics and environmental factors trigger the disease. Identical twins have a 24% chance of getting lupus disease if the other one is affected. Internal factors such as female gender and sex hormones, the major histocompatibility complex (MHC) locus and other genetic polymorphisms have been shown to affect SLE, as well as external, environmental influences such as sunlight exposure, smoking, vitamin D deficiency, and certain infections. Several studies have reported and proposed multiple associations between the alteration of the epigenome and the pathogenesis of autoimmune disease. Epigenetic factors contributing to SLE include microRNAs, DNA methylation status, and the acetylation/deacetylation of histone proteins. Additionally, the acetylation of non-histone proteins can also influence cellular function. A better understanding of non-genomic factors that regulate SLE will provide insight into the mechanisms that initiate and facilitate disease and also contribute to the development of novel therapeutics that can specifically target pathogenic molecular pathways.
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Ding Y, Liao W, He X, Xiang W, Lu Q. CSTMP Exerts Anti-Inflammatory Effects on LPS-Induced Human Renal Proximal Tubular Epithelial Cells by Inhibiting TLR4-Mediated NF-κB Pathways. Inflammation 2017; 39:849-59. [PMID: 26956469 DOI: 10.1007/s10753-016-0315-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
(E)-2-(2-chlorostyryl)-3,5,6-trimethylpyrazine (CSTMP), a novel stilbene derivative, have been shown to have cytoprotective effects against H2O2-induced oxidative stress in human endothelial cells. However, little is known about its anti-inflammatory effects in lupus nephritis (LN). In the present study, we investigated the anti-inflammatory effects of CSTMP on lipopolysaccharide (LPS)-induced human renal proximal tubular epithelial cells (hRPTECs) and elucidated its molecular mechanisms. CSTMP significantly attenuated the cytotoxicity and suppressed the release of proinflammatory mediators, including iNOS, COX-2, TNF-α, IL-6, IL-8, CCL-2, ICAM-1, IL-1β, and MCP-1 in LPS-induced hRPTECs. In addition, CSTMP decreased the expression of TLR4 and its adapter molecules (MyD88, phosphorylation of TAK1, TRAF6, and IRAK1) and abolished its interactions with these adapter molecules in LPS-induced hRPTECs, resulting in an inhibition of the TLR4/MyD88/TAK1/ TRAF6/IRAK1 complex. Moreover, CSTMP also attenuated phosphorylation of IκB and IKK-α/β, and P50-NF-κB and P65-NF-κB translocation to nucleus in LPS-induced hRPTECs. These findings provided new insights to understand the mode of action of CSTMP in treatment of inflammatory diseases, such as LN.
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Affiliation(s)
- Yan Ding
- Department of Dermatology, Hainan General Hospital, Haikou, 570102, China.,Department of Dermatology, Maternal and Child Health care Hospital of Hainan Province, Haikou, 570206, China
| | - Wang Liao
- Department of Cardiology, Hainan General Hospital, Haikou, 570102, China
| | - Xiaojie He
- Department of Nephropathy, Children's Medical Center, The Second Xiangya Hospital, Central South University, Changsha, 410000, China
| | - Wei Xiang
- Department of Pediatrics, Maternal and Child Health care Hospital of Hainan Province, 15 Long Kun-Nan Road, Haikou, 570206, China.
| | - Qianjin Lu
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, 410000, China
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Mackay M, Oswald M, Sanchez-Guerrero J, Lichauco J, Aranow C, Kotkin S, Korsunsky I, Gregersen PK, Diamond B. Molecular signatures in systemic lupus erythematosus: distinction between disease flare and infection. Lupus Sci Med 2016; 3:e000159. [PMID: 27933197 PMCID: PMC5133406 DOI: 10.1136/lupus-2016-000159] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 08/17/2016] [Accepted: 08/19/2016] [Indexed: 12/17/2022]
Affiliation(s)
- Meggan Mackay
- The Feinstein Institute for Medical Research, Manhasset, New York, USA
| | - Michaela Oswald
- The Feinstein Institute for Medical Research, Manhasset, New York, USA
| | | | | | - Cynthia Aranow
- The Feinstein Institute for Medical Research, Manhasset, New York, USA
| | - Sean Kotkin
- The Feinstein Institute for Medical Research, Manhasset, New York, USA
| | - Ilya Korsunsky
- The Feinstein Institute for Medical Research, Manhasset, New York, USA
| | - Peter K Gregersen
- The Feinstein Institute for Medical Research, Manhasset, New York, USA
| | - Betty Diamond
- The Feinstein Institute for Medical Research, Manhasset, New York, USA
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Lennard Richard ML, Brandon D, Lou N, Sato S, Caldwell T, Nowling TK, Gilkeson G, Zhang XK. Acetylation impacts Fli-1-driven regulation of granulocyte colony stimulating factor. Eur J Immunol 2016; 46:2322-2332. [PMID: 27431361 DOI: 10.1002/eji.201646315] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 06/22/2016] [Accepted: 07/15/2016] [Indexed: 11/07/2022]
Abstract
Fli-1 has emerged as a critical regulator of inflammatory mediators, including MCP-1, CCL5, and IL-6. The cytokine, granulocyte colony stimulating factor (G-CSF) regulates neutrophil precursor maturation and survival, and activates mature neutrophils. Previously, a significant decrease in neutrophil infiltration into the kidneys of Fli-1+/- lupus-prone mice was observed. In this study, a significant decrease in G-CSF protein expression was detected in stimulated murine and human endothelial cells when expression of Fli-1 was inhibited. The murine G-CSF promoter contains numerous putative Fli-1 binding sites and several regions within the proximal promoter are significantly enriched for Fli-1 binding. Transient transfection assays indicate that Fli-1 drives transcription from the G-CSF promoter and mutation of the Fli-1 DNA binding domain resulted in a 94% loss of transcriptional activation. Mutation of a known acetylation site, led to a significant increase in G-CSF promoter activation. The histone acetyltransferases p300/CBP and p300/CBP associated factor (PCAF) significantly decrease Fli-1 specific activation of the G-CSF promoter. Thus, acetylation appears to be an important mechanism behind Fli-1 driven activation of the G-CSF promoter. These results further support the theory that Fli-1 plays a major role in the regulation of several inflammatory mediators, ultimately affecting inflammatory disease pathogenesis.
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Affiliation(s)
- Mara L Lennard Richard
- Department of Medicine, Division of Rheumatology & Immunology, Medical University of South Carolina, Charleston, SC, USA
| | - Danielle Brandon
- Department of Medicine, Division of Rheumatology & Immunology, Medical University of South Carolina, Charleston, SC, USA
| | - Ning Lou
- Department of Medicine, Division of Rheumatology & Immunology, Medical University of South Carolina, Charleston, SC, USA.,Jinan Central Hospital, Shandong University, Jinan, Shangdong, China
| | - Shuzo Sato
- Department of Medicine, Division of Rheumatology & Immunology, Medical University of South Carolina, Charleston, SC, USA
| | - Tomika Caldwell
- Department of Medicine, Division of Rheumatology & Immunology, Medical University of South Carolina, Charleston, SC, USA
| | - Tamara K Nowling
- Department of Medicine, Division of Rheumatology & Immunology, Medical University of South Carolina, Charleston, SC, USA
| | - Gary Gilkeson
- Department of Medicine, Division of Rheumatology & Immunology, Medical University of South Carolina, Charleston, SC, USA.,Medical Research Service, Ralph H. Johnson Veterans Affairs Medical Center, Charleston, SC, USA
| | - Xian K Zhang
- Department of Medicine, Division of Rheumatology & Immunology, Medical University of South Carolina, Charleston, SC, USA. .,Medical Research Service, Ralph H. Johnson Veterans Affairs Medical Center, Charleston, SC, USA.
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Sundararaj KP, Thiyagarajan T, Molano I, Basher F, Powers TW, Drake RR, Nowling TK. FLI1 Levels Impact CXCR3 Expression and Renal Infiltration of T Cells and Renal Glycosphingolipid Metabolism in the MRL/lpr Lupus Mouse Strain. THE JOURNAL OF IMMUNOLOGY 2015; 195:5551-60. [PMID: 26538397 DOI: 10.4049/jimmunol.1500961] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Accepted: 10/06/2015] [Indexed: 11/19/2022]
Abstract
The ETS factor Friend leukemia virus integration 1 (FLI1) is a key modulator of lupus disease expression. Overexpressing FLI1 in healthy mice results in the development of an autoimmune kidney disease similar to that observed in lupus. Lowering the global levels of FLI1 in two lupus strains (Fli1(+/-)) significantly improved kidney disease and prolonged survival. T cells from MRL/lpr Fli1(+/-) lupus mice have reduced activation and IL-4 production, neuraminidase 1 expression, and the levels of the glycosphingolipid lactosylceramide. In this study, we demonstrate that MRL/lpr Fli1(+/-) mice have significantly decreased renal neuraminidase 1 and lactosylceramide levels. This corresponds with a significant decrease in the number of total CD3(+) cells, as well as CD4(+) and CD44(+)CD62L(-) T cell subsets in the kidney of MRL/lpr Fli1(+/-) mice compared with the Fli1(+/+) nephritic mice. We further demonstrate that the percentage of CXCR3(+) T cells and Cxcr3 message levels in T cells are significantly decreased and correspond with a decrease in renal CXCR3(+) cells and in Cxcl9 and Cxcl10 expression in the MRL/lpr Fli1(+/-) compared with the Fli1(+/+) nephritic mice. Our results suggest that reducing the levels of FLI1 in MRL/lpr mice may be protective against development of nephritis in part through downregulation of CXCR3, reducing renal T cell infiltration and glycosphingolipid levels.
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Affiliation(s)
- Kamala P Sundararaj
- Division of Rheumatology, Department of Medicine, Medical University of South Carolina, Charleston, SC 29425
| | - Thirumagal Thiyagarajan
- Division of Rheumatology, Department of Medicine, Medical University of South Carolina, Charleston, SC 29425
| | - Ivan Molano
- Division of Rheumatology, Department of Medicine, Medical University of South Carolina, Charleston, SC 29425
| | - Fahmin Basher
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC 29425; and
| | - Thomas W Powers
- Department of Cell and Molecular Pharmacology, Medical University of South Carolina, Charleston, SC 29425
| | - Richard R Drake
- Department of Cell and Molecular Pharmacology, Medical University of South Carolina, Charleston, SC 29425
| | - Tamara K Nowling
- Division of Rheumatology, Department of Medicine, Medical University of South Carolina, Charleston, SC 29425;
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Sato S, Lennard Richard M, Brandon D, Jones Buie JN, Oates JC, Gilkeson GS, Zhang XK. A critical role of the transcription factor fli-1 in murine lupus development by regulation of interleukin-6 expression. Arthritis Rheumatol 2015; 66:3436-44. [PMID: 25155007 DOI: 10.1002/art.38818] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 08/05/2014] [Indexed: 01/06/2023]
Abstract
OBJECTIVE The Fli-1 transcription factor is implicated in the pathogenesis of systemic lupus erythematosus (SLE), both in humans and in animal models. Dysregulation of interleukin-6 (IL-6) is also associated with SLE. The purpose of this study was to investigate whether Fli-1 directly regulates the expression of IL-6. METHODS Sera were collected from wild-type and Fli-1-heterozygous (Fli-1(+/-) ) MRL/lpr mice, and the concentration of IL-6 was measured by enzyme-linked immunosorbent assay (ELISA). Expression of IL-6 in the kidney was measured by real-time polymerase chain reaction analysis. T cells were isolated from wild-type and Fli-1(+/-) MRL/lpr mice and stimulated with CD3/CD28 beads, and the concentration of IL-6 in the supernatants was measured by ELISA. MS1 endothelial cells were transfected with Fli-1 and control small interfering RNA, and the production of IL-6 was compared after lipopolysaccharide stimulation. A chromatin immunoprecipitation (ChIP) assay was performed to determine whether Fli-1 binds to the IL-6 promoter region. Transient transfections with the NIH3T3 cell line were performed to examine whether Fli-1 regulates the expression of IL-6. RESULTS Fli-1(+/-) MRL/lpr mice had significantly decreased IL-6 levels in sera and reduced expression of IL-6 in kidneys as compared to their wild-type littermates. T cells isolated from Fli-1(+/-) MRL/lpr mice produced less IL-6 than did those from wild-type mice. Inhibiting the expression of Fli-1 in endothelial cells resulted in reduced production of IL-6. The ChIP assay revealed direct binding of Fli-1 to 3 regions within the IL-6 promoter. Fli-1 activated transcription from the IL-6 promoter in a dose-dependent manner. CONCLUSION The direct regulation of IL-6 expression by Fli-1 represents one possible mechanism for the protective effect of decreased Fli-1 expression in lupus.
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Affiliation(s)
- Shuzo Sato
- Medical University of South Carolina, Charleston
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