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Chaffey LE, Roberti A, Bowman A, O'Brien CJ, Som L, Purvis GS, Greaves DR. Drug repurposing screen identifies novel anti-inflammatory activity of sunitinib in macrophages. Eur J Pharmacol 2024; 969:176437. [PMID: 38417608 DOI: 10.1016/j.ejphar.2024.176437] [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: 09/22/2023] [Revised: 01/29/2024] [Accepted: 02/16/2024] [Indexed: 03/01/2024]
Abstract
Inflammation is a driver of human disease and an unmet clinical need exists for new anti-inflammatory medicines. As a key cell type in both acute and chronic inflammatory pathologies, macrophages are an appealing therapeutic target for anti-inflammatory medicines. Drug repurposing - the use of existing medicines for novel indications - is an attractive strategy for the identification of new anti-inflammatory medicines with reduced development costs and lower failure rates than de novo drug discovery. In this study, FDA-approved medicines were screened in a murine macrophage NF-κB reporter cell line to identify potential anti-inflammatory drug repurposing candidates. The multi-tyrosine kinase inhibitor sunitinib was found to be a potent inhibitor of NF-κB activity and suppressor of inflammatory mediator production in murine bone marrow derived macrophages. Furthermore, oral treatment with sunitinib in mice was found to reduce TNFα production, inflammatory gene expression and organ damage in a model of endotoxemia via inhibition of NF-κB. Finally, we revealed sunitinib to have immunomodulatory effects in a model of chronic cardiovascular inflammation by reducing circulating TNFα. This study validates drug repurposing as a strategy for the identification of novel anti-inflammatory medicines and highlights sunitinib as a potential drug repurposing candidate for inflammatory disease via inhibition of NF-κB signalling.
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Affiliation(s)
- Laura E Chaffey
- Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxfordshire, OX1 3RE, United Kingdom
| | - Annabell Roberti
- Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxfordshire, OX1 3RE, United Kingdom
| | - Amelia Bowman
- Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxfordshire, OX1 3RE, United Kingdom
| | - Conan Jo O'Brien
- Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxfordshire, OX1 3RE, United Kingdom
| | - Liliana Som
- Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxfordshire, OX1 3RE, United Kingdom
| | - Gareth Sd Purvis
- Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxfordshire, OX1 3RE, United Kingdom
| | - David R Greaves
- Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxfordshire, OX1 3RE, United Kingdom.
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Davezac M, Meneur C, Buscato M, Zahreddine R, Arnal JF, Dalenc F, Lenfant F, Fontaine C. The beneficial effects of tamoxifen on arteries: a key player for cardiovascular health of breast cancer patient. Biochem Pharmacol 2023:115677. [PMID: 37419371 DOI: 10.1016/j.bcp.2023.115677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/09/2023]
Abstract
Breast cancer is the most common cancer in women. Over the past few decades, advances in cancer detection and treatment have significantly improved survival rate of breast cancer patients. However, due to the cardiovascular toxicity of cancer treatments (chemotherapy, anti-HER2 antibodies and radiotherapy), cardiovascular diseases (CVD) have become an increasingly important cause of long-term morbidity and mortality in breast cancer survivors. Endocrine therapies are prescribed to reduce the risk of recurrence and specific death in estrogen receptor-positive (ER+) early breast cancer patients, but their impact on CVD is a matter of debate. Whereas aromatase inhibitors and luteinizing hormone-releasing hormone (LHRH) analogs inhibit estrogen synthesis, tamoxifen acts as a selective estrogen receptor modulator (SERM), opposing estrogen action in the breast but mimicking their actions in other tissues, including arteries. This review aims to summarize the main clinical and experimental studies reporting the effects of tamoxifen on CVD. In addition, we will discuss how recent findings on the mechanisms of action of these therapies may contribute to a better understanding and anticipation of CVD risk in breast cancer patients.
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Affiliation(s)
- Morgane Davezac
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U1297, University of Toulouse 3, Toulouse, France
| | - Cecile Meneur
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U1297, University of Toulouse 3, Toulouse, France; PhysioStim, 10 rue Henri Regnault, 81100, Castres, France
| | - Melissa Buscato
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U1297, University of Toulouse 3, Toulouse, France
| | - Rana Zahreddine
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U1297, University of Toulouse 3, Toulouse, France; CREFRE-Anexplo, Service de Microchirurgie Experimentale, UMS006, INSERM, Université de Toulouse, UT3, ENVT, 31062 Toulouse, France
| | - Jean-François Arnal
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U1297, University of Toulouse 3, Toulouse, France
| | - Florence Dalenc
- Department of Medical Oncology, Claudius Regaud Institute, IUCT-Oncopole, Toulouse, France
| | - Françoise Lenfant
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U1297, University of Toulouse 3, Toulouse, France
| | - Coralie Fontaine
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U1297, University of Toulouse 3, Toulouse, France.
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3
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Xu Z, Xi F, Deng X, Ni Y, Pu C, Wang D, Lou W, Zeng X, Su N, Chen C, Zeng Z, Deng L, Jiang M. Osteopontin Promotes Macrophage M1 Polarization by Activation of the JAK1/STAT1/HMGB1 Signaling Pathway in Nonalcoholic Fatty Liver Disease. J Clin Transl Hepatol 2023; 11:273-283. [PMID: 36643029 PMCID: PMC9817049 DOI: 10.14218/jcth.2021.00474] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 04/12/2022] [Accepted: 05/05/2022] [Indexed: 01/18/2023] Open
Abstract
Background and Aims Osteopontin (OPN) is reported to be associated with the pathogenesis of nonalcoholic fatty liver disease (NAFLD). However, the function of OPN in NAFLD is still inconclusive. Therefore, our aim in this study was to evaluate the role of OPN in NAFLD and clarify the involved mechanisms. Methods We analyzed the expression change of OPN in NAFLD by bioinformatic analysis, qRT-PCR, western blotting and immunofluorescence staining. To clarify the role of OPN in NAFLD, the effect of OPN from HepG2 cells on macrophage polarization and the involved mechanisms were examined by FACS and western blotting. Results OPN was significantly upregulated in NAFLD patients compared with normal volunteers by microarray data, and the high expression of OPN was related with disease stage and progression. OPN level was also significantly increased in liver tissue samples of NAFLD from human and mouse, and in HepG2 cells treated with oleic acid (OA). Furthermore, the supernatants of OPN-treated HepG2 cells promoted the macrophage M1 polarization. Mechanistically, OPN activated the janus kinase 1(JAK1)/signal transducers and activators of transcription 1 (STAT1) signaling pathway in HepG2 cells, and consequently HepG2 cells secreted more high-mobility group box 1 (HMGB1), thereby promoting macrophage M1 polarization. Conclusions OPN promoted macrophage M1 polarization by increasing JAK1/STAT1-induced HMGB1 secretion in hepatocytes.
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Affiliation(s)
- Zhihao Xu
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Feiyang Xi
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Xinxin Deng
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
- School of Pharmacy, Nanchang University, Nanchang, Jiangxi, China
| | - Yuqi Ni
- Central Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang, China
| | - Changqin Pu
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Dan Wang
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Weiming Lou
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Xufang Zeng
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Ning Su
- Jiangxi Provincial Key Laboratory of Preventive Medicine, School of Public Health, Nanchang University, Nanchang, Jiangxi, China
| | - Chen Chen
- School of Basic Medical Science, Nanchang University, Nanchang, Jiangxi, China
| | - Ziqiang Zeng
- Jiangxi Provincial Key Laboratory of Preventive Medicine, School of Public Health, Nanchang University, Nanchang, Jiangxi, China
| | - Libin Deng
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
- Jiangxi Provincial Key Laboratory of Preventive Medicine, School of Public Health, Nanchang University, Nanchang, Jiangxi, China
| | - Meixiu Jiang
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
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Sfogliarini C, Pepe G, Dolce A, Della Torre S, Cesta MC, Allegretti M, Locati M, Vegeto E. Tamoxifen Twists Again: On and Off-Targets in Macrophages and Infections. Front Pharmacol 2022; 13:879020. [PMID: 35431927 PMCID: PMC9006819 DOI: 10.3389/fphar.2022.879020] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 03/08/2022] [Indexed: 11/25/2022] Open
Abstract
Beyond the wide use of tamoxifen in breast cancer chemotherapy due to its estrogen receptor antagonist activity, this drug is being assayed in repurposing strategies against a number of microbial infections. We conducted a literature search on the evidence related with tamoxifen activity in macrophages, since these immune cells participate as a first line-defense against pathogen invasion. Consistent data indicate the existence of estrogen receptor-independent targets of tamoxifen in macrophages that include lipid mediators and signaling pathways, such as NRF2 and caspase-1, which allow these cells to undergo phenotypic adaptation and potentiate the inflammatory response, without the induction of cell death. Thus, these lines of evidence suggest that the widespread antimicrobial activity of this drug can be ascribed, at least in part, to the potentiation of the host innate immunity. This widens our understanding of the pharmacological activity of tamoxifen with relevant therapeutic implications for infections and other clinical indications that may benefit from the immunomodulatory effects of this drug.
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Affiliation(s)
- Chiara Sfogliarini
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Giovanna Pepe
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Arianna Dolce
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Sara Della Torre
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | | | | | - Massimo Locati
- IRCCS Humanitas Research Hospital, Rozzano, Italy.,Department of Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
| | - Elisabetta Vegeto
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
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5
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Pepe G, Sfogliarini C, Rizzello L, Battaglia G, Pinna C, Rovati G, Ciana P, Brunialti E, Mornata F, Maggi A, Locati M, Vegeto E. ERα-independent NRF2-mediated immunoregulatory activity of tamoxifen. Biomed Pharmacother 2021; 144:112274. [PMID: 34653752 DOI: 10.1016/j.biopha.2021.112274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/27/2021] [Accepted: 09/28/2021] [Indexed: 12/30/2022] Open
Abstract
Sex differences in immune-mediated diseases are linked to the activity of estrogens on innate immunity cells, including macrophages. Tamoxifen (TAM) is a selective estrogen receptor modulator (SERM) used in estrogen receptor-alpha (ERα)-dependent breast cancers and off-target indications such as infections, although the immune activity of TAM and its active metabolite, 4-OH tamoxifen (4HT), is poorly characterized. Here, we aimed at investigating the endocrine and immune activity of these SERMs in macrophages. Using primary cultures of female mouse macrophages, we analyzed the expression of immune mediators and activation of effector functions in competition experiments with SERMs and 17β-estradiol (E2) or the bacterial endotoxin LPS. We observed that 4HT and TAM induce estrogen antagonist effects when used at nanomolar concentrations, while pharmacological concentrations that are reached by TAM in clinical settings regulate the expression of VEGFα and other immune activation genes by ERα- and G protein-coupled receptor 1 (GPER1)-independent mechanisms that involve NRF2 through PI3K/Akt-dependent mechanisms. Importantly, we observed that SERMs potentiate cell phagocytosis and modify the effects of LPS on the expression of inflammatory cytokines, such as TNFα and IL1β, with an overall increase in cell inflammatory phenotype, further sustained by potentiation of IL1β secretion through caspase-1 activation. Altogether, our data unravel a novel molecular mechanism and immune functions for TAM and 4HT, sustaining their repurposing in infective and other estrogen receptors-unrelated pathologies.
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Affiliation(s)
- Giovanna Pepe
- Department of Pharmaceutical Sciences, University of Milan, 20133 Milan, Italy
| | - Chiara Sfogliarini
- Department of Pharmaceutical Sciences, University of Milan, 20133 Milan, Italy
| | - Loris Rizzello
- Department of Pharmaceutical Sciences, University of Milan, 20133 Milan, Italy; National Institute of Molecular Genetics (INGM) Milan, 20122 Milan, Italy
| | - Giuseppe Battaglia
- Department of Chemistry and; The EPSRC/Jeol Centre for Liquid Phase Electron Microscopy, University College London, WC1H 0AJ London, U.K; Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, 08028 Barcelona, Spain; Institute for Physics of Living System, University College London, WC1E 6BT London, U.K; Catalan Institution for Research and Advanced Studies (ICREA), 08010 Barcelona, Spain
| | - Christian Pinna
- Department of Pharmaceutical Sciences, University of Milan, 20133 Milan, Italy
| | - Gianenrico Rovati
- Department of Pharmaceutical Sciences, University of Milan, 20133 Milan, Italy
| | - Paolo Ciana
- Department of Health Sciences University of Milan, 20142 Milan, Italy
| | - Electra Brunialti
- Department of Health Sciences University of Milan, 20142 Milan, Italy
| | - Federica Mornata
- IRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano, Milan, Italy
| | - Adriana Maggi
- Department of Pharmaceutical Sciences, University of Milan, 20133 Milan, Italy
| | - Massimo Locati
- IRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano, Milan, Italy; Department of Medical Biotechnologies and Translational Medicine, University of Milan, 20133 Milan, Italy
| | - Elisabetta Vegeto
- Department of Pharmaceutical Sciences, University of Milan, 20133 Milan, Italy.
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6
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Jie J, Ling L, Yi Y, Tao L, Liao X, Gao P, Xu Q, Zhang W, Chen Y, Zhang J, Weng D. Tributyltin triggers lipogenesis in macrophages via modifying PPARγ pathway. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 271:116331. [PMID: 33383419 DOI: 10.1016/j.envpol.2020.116331] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 12/08/2020] [Accepted: 12/14/2020] [Indexed: 06/12/2023]
Abstract
Tributyltin (TBT), a bioaccumulative and persistent environmental pollutant, has been proposed as a metabolism disruptor and obesogen through targeting peroxisome proliferator-activated receptor gamma (PPARγ) receptor pathway. However, it remains unknown whether this biological effect occurs in macrophage, a cell type which cooperates closely with hepatocytes and adipocytes to regulate lipid metabolism. This study for the first time investigated the effect of TBT on PPARγ pathway in macrophages. Our results indicated that nanomolar levels of TBT was able to strongly activate PPARγ in human macrophages. TBT treatment also markedly increased the intracellular lipid accumulation, and enhanced the expression of lipid metabolism-related genes in macrophages, while these effects were all significantly down-regulated in PPARγ-deficient macrophages, confirming the involvement of PPARγ in TBT-induced lipogenesis. Next, a mouse model that C57BL/6 mice were orally exposed to TBT with the doses (250 and 500 μg/kg body weight) lower than NOAEL (no observed adverse effect level) was used to further investigate the in vivo mechanisms. And the in vivo results were consistent with cellular assays, confirming the induction of PPARγ and the increased expression of lipogenesis-regulating and lipid metabolism-related genes by TBT in vivo. In conclusion, this study not only provided the first evidence that TBT stimulated lipogenesis, activated PPARγ and related genes in human macrophages, but also provided insight into the mechanism of TBT-induced metabolism disturbance and obesity through targeting PPARγ via both in vitro cellular assays and in vivo animal models.
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Affiliation(s)
- Jiapeng Jie
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei Street, Nanjing, 210094, China
| | - Ling Ling
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei Street, Nanjing, 210094, China
| | - Yuguo Yi
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei Street, Nanjing, 210094, China
| | - Liang Tao
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei Street, Nanjing, 210094, China
| | - Xin Liao
- Guangxi Mangrove Research Center, Guangxi Key Lab of Mangrove Conservation and Utilization, Beihai, 536000, China
| | - Pingshi Gao
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei Street, Nanjing, 210094, China
| | - Qian Xu
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei Street, Nanjing, 210094, China
| | - Weigao Zhang
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei Street, Nanjing, 210094, China
| | - Yuxin Chen
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, 210008, China
| | - Jianfa Zhang
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei Street, Nanjing, 210094, China
| | - Dan Weng
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei Street, Nanjing, 210094, China.
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7
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Snow SJ, Henriquez AR, Fenton JI, Goeden T, Fisher A, Vallanat B, Angrish M, Richards JE, Schladweiler MC, Cheng WY, Wood CE, Tong H, Kodavanti UP. Diets enriched with coconut, fish, or olive oil modify peripheral metabolic effects of ozone in rats. Toxicol Appl Pharmacol 2020; 410:115337. [PMID: 33217375 DOI: 10.1016/j.taap.2020.115337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/29/2020] [Accepted: 11/12/2020] [Indexed: 12/17/2022]
Abstract
Dietary factors may modulate metabolic effects of air pollutant exposures. We hypothesized that diets enriched with coconut oil (CO), fish oil (FO), or olive oil (OO) would alter ozone-induced metabolic responses. Male Wistar-Kyoto rats (1-month-old) were fed normal diet (ND), or CO-, FO-, or OO-enriched diets. After eight weeks, animals were exposed to air or 0.8 ppm ozone, 4 h/day for 2 days. Relative to ND, CO- and OO-enriched diet increased body fat, serum triglycerides, cholesterols, and leptin, while all supplements increased liver lipid staining (OO > FO > CO). FO increased n-3, OO increased n-6/n-9, and all supplements increased saturated fatty-acids. Ozone increased total cholesterol, low-density lipoprotein, branched-chain amino acids (BCAA), induced hyperglycemia, glucose intolerance, and changed gene expression involved in energy metabolism in adipose and muscle tissue in rats fed ND. Ozone-induced glucose intolerance was exacerbated by OO-enriched diet. Ozone increased leptin in CO- and FO-enriched groups; however, BCAA increases were blunted by FO and OO. Ozone-induced inhibition of liver cholesterol biosynthesis genes in ND-fed rats was not evident in enriched dietary groups; however, genes involved in energy metabolism and glucose transport were increased in rats fed FO and OO-enriched diet. FO- and OO-enriched diets blunted ozone-induced inhibition of genes involved in adipose tissue glucose uptake and cholesterol synthesis, but exacerbated genes involved in adipose lipolysis. Ozone-induced decreases in muscle energy metabolism genes were similar in all dietary groups. In conclusion, CO-, FO-, and OO-enriched diets modified ozone-induced metabolic changes in a diet-specific manner, which could contribute to altered peripheral energy homeostasis.
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Affiliation(s)
- Samantha J Snow
- Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Andres R Henriquez
- Oak Ridge Institute for Science and Education Research Participation Program, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Jenifer I Fenton
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, 48824, United States
| | - Travis Goeden
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, 48824, United States
| | - Anna Fisher
- Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Beena Vallanat
- Center for Computational Toxicology and Exposure, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Michelle Angrish
- Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Judy E Richards
- Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Mette C Schladweiler
- Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Wan-Yun Cheng
- Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Charles E Wood
- Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Haiyan Tong
- Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States
| | - Urmila P Kodavanti
- Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, United States.
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8
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Luo Y, Tanigawa K, Kawashima A, Ishido Y, Ishii N, Suzuki K. The function of peroxisome proliferator-activated receptors PPAR-γ and PPAR-δ in Mycobacterium leprae-induced foam cell formation in host macrophages. PLoS Negl Trop Dis 2020; 14:e0008850. [PMID: 33075048 PMCID: PMC7595635 DOI: 10.1371/journal.pntd.0008850] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 10/29/2020] [Accepted: 10/02/2020] [Indexed: 12/12/2022] Open
Abstract
Leprosy is a chronic infectious disease caused by Mycobacterium leprae (M. leprae). In lepromatous leprosy (LL), skin macrophages, harboring extensive bacterial multiplication, gain a distinctive foamy appearance due to increased intracellular lipid load. To determine the mechanism by which M. leprae modifies the lipid homeostasis in host cells, an in vitro M. leprae infection system, using human macrophage precursor THP-1 cells and M. leprae prepared from the footpads of nude mice, was employed. RNA extracted from skin smear samples of patients was used to investigate host gene expressions before and after multidrug therapy (MDT). We found that a cluster of peroxisome proliferator-activated receptor (PPAR) target genes associated with adipocyte differentiation were strongly induced in M. leprae-infected THP-1 cells, with increased intracellular lipid accumulation. PPAR-δ and PPAR-γ expressions were induced by M. leprae infection in a bacterial load-dependent manner, and their proteins underwent nuclear translocalization after infection, indicating activation of PPAR signaling in host cells. Either PPAR-δ or PPAR-γ antagonist abolished the effect of M. leprae to modify host gene expressions and inhibited intracellular lipid accumulation in host cells. M. leprae-specific gene expressions were detected in the skin smear samples both before and after MDT, whereas PPAR target gene expressions were dramatically diminished after MDT. These results suggest that M. leprae infection activates host PPAR signaling to induce an array of adipocyte differentiation-associated genes, leading to accumulation of intracellular lipids to accommodate M. leprae parasitization. Certain PPAR target genes in skin lesions may serve as biomarkers for monitoring treatment efficacy. Leprosy is a chronic infectious disease caused by Mycobacterium leprae (M. leprae). Lipid-enriched intracellular environment is important for the parasitization of M. leprae. During anti-leprosy treatment, chemotherapy-killed bacilli can remain in host tissues for a long time, making it difficult to determine the treatment efficacy by Zeihl-Nelson’s staining-based bacterial index (BI) test. In this study, we found that host peroxisome proliferator-activated receptor (PPAR) signaling is responsible for modification of intracellular lipid homeostasis to accommodate M. leprae parasitization in host macrophages. In skin smear samples of patients, M. leprae-derived gene expressions were detected both before and after anti-leprosy treatment, whereas human PPAR target gene expressions were dramatically diminished after the treatment. These results further our understanding of M. leprae intracellular parasitization, and suggest that PPAR signaling may be a novel therapeutic target for treating M. leprae infection and monitoring the expressions of certain PPAR target genes in skin lesions may be helpful to evaluate the treatment efficacy and recurrent infection.
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Affiliation(s)
- Yuqian Luo
- Department of Clinical Laboratory Science, Faculty of Medical Technology, Teikyo University, Tokyo, Japan
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - Kazunari Tanigawa
- Department of Molecular Pharmaceutics, Faculty of Pharma-Science, Teikyo University, Tokyo, Japan
| | - Akira Kawashima
- Department of Clinical Laboratory Science, Faculty of Medical Technology, Teikyo University, Tokyo, Japan
| | - Yuko Ishido
- Department of Clinical Laboratory Science, Faculty of Medical Technology, Teikyo University, Tokyo, Japan
| | - Norihisa Ishii
- Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Koichi Suzuki
- Department of Clinical Laboratory Science, Faculty of Medical Technology, Teikyo University, Tokyo, Japan
- Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
- * E-mail:
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9
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TRIM59 expression is regulated by Sp1 and Nrf1 in LPS-activated macrophages through JNK signaling pathway. Cell Signal 2019; 67:109522. [PMID: 31883458 DOI: 10.1016/j.cellsig.2019.109522] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/23/2019] [Accepted: 12/23/2019] [Indexed: 12/19/2022]
Abstract
Activated macrophages play an important role in many inflammatory diseases including septic shock and atherosclerosis. TRIM59 has been showed to participate in many pathological processes, such as inflammation, cytotoxicity and tumorigenesis. However, the molecular mechanisms controlling its expression in activated macrophages are not fully understood. Here we report that TRIM59 expression is regulated by Sp1 and Nrf1 in LPS-activated macrophages. TRIM59 is highly expressed in macrophages, and markedly decreased by LPS stimuli in vivo and in vitro. TRIM59 promoter activity is also significantly suppressed by LPS and further analysis demonstrated that Sp1 and Nrf1 directly bound to the proximal promoter of TRIM59 gene. LPS treatment significantly decreased Sp1 expression, nuclear translocation and reduced its binding to the promoter, whereas increased Nrf1 expression, nuclear translocation and enhanced its binding to the promoter. Moreover, LPS-decreased TRIM59 expression was reversed by JNK inhibitor. Finally, TRIM59 level is significantly decreased during atherosclerosis progression. Taken together, our results demonstrated that TRIM59 expression was precisely regulated by Sp1 and Nrf1 in LPS-activated macrophages, which may be dependent on the activation of JNK signaling pathway and TRIM59 may be a potential therapeutic target for inflammatory diseases such as atherosclerosis.
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Zhao X, Wei Z, Li D, Yang Z, Tian M, Kang P. Glucocorticoid Enhanced the Expression of Ski in Osteonecrosis of Femoral Head: The Effect on Adipogenesis of Rabbit BMSCs. Calcif Tissue Int 2019; 105:506-517. [PMID: 31359074 DOI: 10.1007/s00223-019-00592-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 07/22/2019] [Indexed: 02/05/2023]
Abstract
Glucocorticoid (GC)-induced osteonecrosis has been considered as the most serious side effect in long-term or over-dose steroid therapy. The decreased bone mass and increased marrow fat tissue demonstrated that GC can destroy the normal differentiation of bone marrow mesenchymal stem cells (BMSCs), which accelerates adipogenesis but not osteogenesis. However, the underlying mechanisms are still unclear. Ski, an evolutionary conserved protein, is a multifunctional transcriptional regulator that involved in regulating signaling pathways associated with adipogenesis differentiation, but the concrete function remains unclear. In this work, we first established a methylprednisolone (MPS)-induced osteonecrosis of femoral head (ONFH) rabbit model, in which the expression of Ski, PPAR-γ, and FABP4 was up-regulated compared with control group, and then we induced the isolated BMSCs from rabbit with dexamethasone (Dex) in vitro and the results showed that the Ski expression was up-regulated by Dex in a dose- and time-dependent manner. Therefore, we demonstrated that the expression of Ski was up-regulated in glucocorticoid-related osteonecrosis disease in vivo and in vitro. Moreover, the adipogenesis differentiation capacity of BMSCs was enhanced after induced by Dex, which was identified by Oil Red O staining, and the up-regulated PPAR-γ and FABP4 expression. To further study the function of Ski in BMSC after induced by Dex, Ski specific small interfering RNA (Ski-siRNA) was used. Results showed that knockdown of Ski obviously decreased adipogenesis differentiation evident by Oil Red O staining, and the expression of PPAR-γ and FABP4 was down-regulated simultaneously. Collectively, our findings suggest that Ski increased significantly during glucocorticoid-induced adipogenic differentiation of BMSCs, and the expression level was consistent with adipogenic-related proteins including PPAR-γ and FABP4. Based on the above data, we believe that Ski might become a new molecule in the treatment of GC-induced ONFH and our study could provide a basis for further study on the detailed function of Ski in ONFH.
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Affiliation(s)
- Xin Zhao
- Department of Orthopaedics Surgery, West China Hospital, Sichuan University, No. 37 Wainan Guoxue Road, Chengdu, 610041, People's Republic of China
| | - Zhun Wei
- Department of Orthopaedics Surgery, West China Hospital, Sichuan University, No. 37 Wainan Guoxue Road, Chengdu, 610041, People's Republic of China
| | - Donghai Li
- Department of Orthopaedics Surgery, West China Hospital, Sichuan University, No. 37 Wainan Guoxue Road, Chengdu, 610041, People's Republic of China
| | - Zhouyuan Yang
- Department of Orthopaedics Surgery, West China Hospital, Sichuan University, No. 37 Wainan Guoxue Road, Chengdu, 610041, People's Republic of China
| | - Meng Tian
- Neurosurgery Research Laboratory, West China Hospital, Sichuan Univerisity, Chengdu, Sichuan, 610041, People's Republic of China.
| | - Pengde Kang
- Department of Orthopaedics Surgery, West China Hospital, Sichuan University, No. 37 Wainan Guoxue Road, Chengdu, 610041, People's Republic of China.
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11
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The Effects of Radix Astragali Water Abstract on Energy Metabolism in Rat Yang-Deficiency Cold Syndrome Model through PPAR Signaling Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:9194362. [PMID: 30519272 PMCID: PMC6241352 DOI: 10.1155/2018/9194362] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 09/09/2018] [Indexed: 12/23/2022]
Abstract
Radix Astragali (RA) herb with warm property and significant “tonifying qi” effects is indicated for the syndrome of internal cold due to Yang deficiency. The purpose of this research was to explore effects of Radix Astragali (RA) through PPAR signaling pathway on gene expression profiles related to energy metabolism in rats with the Yang-deficiency cold (YDC) syndrome, for identifying the pathological mechanism of Yang-deficiency cold (YDC) syndrome and the effects mechanism of RA. The results indicated that RA could significantly increase body weight (BM), cold and heat tendency (CT), overall temperature (OT), rectum temperature (RT), toe temperature (TT), energy intake (EI), and V(O2)/V(CO2) ratio (which indicates basal metabolism, BM) (P<0.05), enhancing the depressed metabolic function in YDC syndrome model rat. Our data also indicated differentially expressed genes (DEGs) related to energy metabolism involving lipids, carbohydrates, and amino acids metabolic process; the expression of CPT-1 and FABP4 (ap2) was improved; PPAR, Glycolysis, Wnt, cAMP, MAPK, AMPK, and fatty acid degradation signaling pathway may be related to energy metabolism. However, the Chinese herbal medicine RA plays a certain role in promoting the metabolism of substances and energy in rats by its warming and beneficial effect. Our results suggest that the mechanism underlying the function of RA may take effect through the regulation of PPAR signaling pathway and related gene expression. Lipids, carbohydrates, and amino acids metabolic process may be affected to adjust the reduced metabolic function in the model animals. In general, results indicate that RA could promote energy metabolism in rats with the YDC syndrome via PPAR signaling pathway regulating the expression of CPT-1 and FABP4 (ap2), which reflected the warm and qi tonifying properties of RA.
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12
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Gharpure KM, Pradeep S, Sans M, Rupaimoole R, Ivan C, Wu SY, Bayraktar E, Nagaraja AS, Mangala LS, Zhang X, Haemmerle M, Hu W, Rodriguez-Aguayo C, McGuire M, Mak CSL, Chen X, Tran MA, Villar-Prados A, Pena GA, Kondetimmanahalli R, Nini R, Koppula P, Ram P, Liu J, Lopez-Berestein G, Baggerly K, S Eberlin L, Sood AK. FABP4 as a key determinant of metastatic potential of ovarian cancer. Nat Commun 2018; 9:2923. [PMID: 30050129 PMCID: PMC6062524 DOI: 10.1038/s41467-018-04987-y] [Citation(s) in RCA: 137] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 06/06/2018] [Indexed: 12/30/2022] Open
Abstract
The standard treatment for high-grade serous ovarian cancer is primary debulking surgery followed by chemotherapy. The extent of metastasis and invasive potential of lesions can influence the outcome of these primary surgeries. Here, we explored the underlying mechanisms that could increase metastatic potential in ovarian cancer. We discovered that FABP4 (fatty acid binding protein) can substantially increase the metastatic potential of cancer cells. We also found that miR-409-3p regulates FABP4 in ovarian cancer cells and that hypoxia decreases miR-409-3p levels. Treatment with DOPC nanoliposomes containing either miR-409-3p mimic or FABP4 siRNA inhibited tumor progression in mouse models. With RPPA and metabolite arrays, we found that FABP4 regulates pathways associated with metastasis and affects metabolic pathways in ovarian cancer cells. Collectively, these findings demonstrate that FABP4 is functionally responsible for aggressive patterns of disease that likely contribute to poor prognosis in ovarian cancer.
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Affiliation(s)
- Kshipra M Gharpure
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, 77030, USA
| | - Sunila Pradeep
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, 77030, USA
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Marta Sans
- Department of Chemistry, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Rajesha Rupaimoole
- Department of Pathology and Institute of RNA Medicine, Beth Israel Deaconess Medical Center Cancer Center, Harvard Medical School, Boston, MA, 02215, USA
| | - Cristina Ivan
- Center for RNA Interference and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, Houston, 77030, Texas, USA
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Sherry Y Wu
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, 77030, USA
| | - Emine Bayraktar
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, 77030, USA
| | - Archana S Nagaraja
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, 77030, USA
| | - Lingegowda S Mangala
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, 77030, USA
- Center for RNA Interference and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, Houston, 77030, Texas, USA
| | - Xinna Zhang
- Center for RNA Interference and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, Houston, 77030, Texas, USA
| | - Monika Haemmerle
- Martin-Luther-University Halle-Wittenberg, Institute of Pathology, 06112, Halle (Saale), Germany
| | - Wei Hu
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, 77030, USA
| | - Cristian Rodriguez-Aguayo
- Center for RNA Interference and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, Houston, 77030, Texas, USA
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Michael McGuire
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, 77030, USA
| | - Celia Sze Ling Mak
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, 77030, USA
| | - Xiuhui Chen
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, 77030, USA
| | - Michelle A Tran
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, 77030, USA
| | - Alejandro Villar-Prados
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, 77030, USA
| | - Guillermo Armaiz Pena
- Department of Pharmacology, Ponce Health Sciences University, Ponce, 00716, Puerto Rico
| | | | - Ryan Nini
- Graduate School of Biomedical Sciences, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Pranavi Koppula
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Prahlad Ram
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Jinsong Liu
- Department of Pathology, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Gabriel Lopez-Berestein
- Center for RNA Interference and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, Houston, 77030, Texas, USA
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Keith Baggerly
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Livia S Eberlin
- Department of Chemistry, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Anil K Sood
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, 77030, USA.
- Center for RNA Interference and Non-Coding RNA, The University of Texas MD Anderson Cancer Center, Houston, 77030, Texas, USA.
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA.
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13
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Lee R, Reese C, Carmen-Lopez G, Perry B, Bonner M, Zemskova M, Wilson CL, Helke KL, Silver RM, Hoffman S, Tourkina E. Deficient Adipogenesis of Scleroderma Patient and Healthy African American Monocytes. Front Pharmacol 2017; 8:174. [PMID: 28420992 PMCID: PMC5376579 DOI: 10.3389/fphar.2017.00174] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 03/15/2017] [Indexed: 12/01/2022] Open
Abstract
Monocytes from systemic sclerosis (SSc, scleroderma) patients and healthy African Americans (AA) are deficient in the regulatory protein caveolin-1 leading to enhanced migration toward chemokines and fibrogenic differentiation. While dermal fibrosis is the hallmark of SSc, loss of subcutaneous adipose tissue is a lesser-known feature. To better understand the etiology of SSc and the predisposition of AA to SSc, we studied the adipogenic potential of SSc and healthy AA monocytes. The ability of SSc and healthy AA monocytes to differentiate into adipocyte-like cells (ALC) is inhibited compared to healthy Caucasian (C) monocytes. We validated that monocyte-derived ALCs are distinct from macrophages by flow cytometry and immunocytochemistry. Like their enhanced fibrogenic differentiation, their inhibited adipogenic differentiation is reversed by the caveolin-1 scaffolding domain peptide (CSD, a surrogate for caveolin-1). The altered differentiation of SSc and healthy AA monocytes is additionally regulated by peroxisome proliferator-activated receptor γ (PPARγ) which is also present at reduced levels in these cells. In vivo studies further support the importance of caveolin-1 and PPARγ in fibrogenesis and adipogenesis. In SSc patients, healthy AA, and mice treated systemically with bleomycin, adipocytes lose caveolin-1 and PPARγ and the subcutaneous adipose layer is diminished. CSD treatment of these mice leads to a reappearance of the caveolin-1+/PPARγ+/FABP4+ subcutaneous adipose layer. Moreover, many of these adipocytes are CD45+, suggesting they are monocyte derived. Tracing experiments with injected EGFP+ monocytes confirm that monocytes contribute to the repair of the adipose layer when it is damaged by bleomycin treatment. Our observations strongly suggest that caveolin-1 and PPARγ work together to maintain a balance between the fibrogenic and adipogenic differentiation of monocytes, that this balance is altered in SSc and in healthy AA, and that monocytes make a major contribution to the repair of the adipose layer.
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Affiliation(s)
- Rebecca Lee
- Division of Rheumatology and Immunology, Department of Medicine, Medical University of South CarolinaCharleston, SC, USA
| | - Charles Reese
- Division of Rheumatology and Immunology, Department of Medicine, Medical University of South CarolinaCharleston, SC, USA
| | - Gustavo Carmen-Lopez
- Division of Rheumatology and Immunology, Department of Medicine, Medical University of South CarolinaCharleston, SC, USA
| | - Beth Perry
- Division of Rheumatology and Immunology, Department of Medicine, Medical University of South CarolinaCharleston, SC, USA
| | - Michael Bonner
- Division of Rheumatology and Immunology, Department of Medicine, Medical University of South CarolinaCharleston, SC, USA
| | - Marina Zemskova
- Division of Rheumatology and Immunology, Department of Medicine, Medical University of South CarolinaCharleston, SC, USA
| | - Carole L Wilson
- Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, Medical University of South CarolinaCharleston, SC, USA
| | - Kristi L Helke
- Department of Comparative Medicine, Medical University of South CarolinaCharleston, SC, USA
| | - Richard M Silver
- Division of Rheumatology and Immunology, Department of Medicine, Medical University of South CarolinaCharleston, SC, USA
| | - Stanley Hoffman
- Division of Rheumatology and Immunology, Department of Medicine, Medical University of South CarolinaCharleston, SC, USA.,Department of Regenerative Medicine and Cell Biology, Medical University of South CarolinaCharleston, SC, USA
| | - Elena Tourkina
- Division of Rheumatology and Immunology, Department of Medicine, Medical University of South CarolinaCharleston, SC, USA.,Department of Regenerative Medicine and Cell Biology, Medical University of South CarolinaCharleston, SC, USA
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14
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Expression profiling of TRIM protein family in THP1-derived macrophages following TLR stimulation. Sci Rep 2017; 7:42781. [PMID: 28211536 PMCID: PMC5314404 DOI: 10.1038/srep42781] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Accepted: 01/16/2017] [Indexed: 01/28/2023] Open
Abstract
Activated macrophages play an important role in many inflammatory diseases including septic shock and atherosclerosis. However, the molecular mechanisms limiting macrophage activation are not completely understood. Members of the tripartite motif (TRIM) family have recently emerged as important players in innate immunity and antivirus. Here, we systematically analyzed mRNA expressions of representative TRIM molecules in human THP1-derived macrophages activated by different toll-like receptor (TLR) ligands. Twenty-nine TRIM members were highly induced (>3 fold) by one or more TLR ligands, among which 19 of them belong to TRIM C-IV subgroup. Besides TRIM21, TRIM22 and TRIM38 were shown to be upregulated by TLR3 and TLR4 ligands as previous reported, we identified a novel group of TRIM genes (TRIM14, 15, 31, 34, 43, 48, 49, 51 and 61) that were significantly up-regulated by TLR3 and TLR4 ligands. In contrast, the expression of TRIM59 was down-regulated by TLR3 and TLR4 ligands in both human and mouse macrophages. The alternations of the TRIM proteins were confirmed by Western blot. Finally, overexpression of TRIM59 significantly suppressed LPS-induced macrophage activation, whereas siRNA-mediated knockdown of TRIM59 enhanced LPS-induced macrophage activation. Taken together, the study provided an insight into the TLR ligands-induced expressions of TRIM family in macrophages.
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15
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Yu M, Jiang M, Chen Y, Zhang S, Zhang W, Yang X, Li X, Li Y, Duan S, Han J, Duan Y. Inhibition of Macrophage CD36 Expression and Cellular Oxidized Low Density Lipoprotein (oxLDL) Accumulation by Tamoxifen: A PEROXISOME PROLIFERATOR-ACTIVATED RECEPTOR (PPAR)γ-DEPENDENT MECHANISM. J Biol Chem 2016; 291:16977-89. [PMID: 27358406 DOI: 10.1074/jbc.m116.740092] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Indexed: 12/22/2022] Open
Abstract
Macrophage CD36 binds and internalizes oxidized low density lipoprotein (oxLDL) to facilitate foam cell formation. CD36 expression is activated by peroxisome proliferator-activated receptor γ (PPARγ). Tamoxifen, an anti-breast cancer medicine, has demonstrated pleiotropic functions including cardioprotection with unfully elucidated mechanisms. In this study, we determined that treatment of ApoE-deficient mice with tamoxifen reduced atherosclerosis, which was associated with decreased CD36 and PPARγ expression in lesion areas. At the cellular level, we observed that tamoxifen inhibited CD36 protein expression in human THP-1 monocytes, THP-1/PMA macrophages, and human blood monocyte-derived macrophages. Associated with decreased CD36 protein expression, tamoxifen reduced cellular oxLDL accumulation in a CD36-dependent manner. At the transcriptional level, tamoxifen decreased CD36 mRNA expression, promoter activity, and the binding of the PPARγ response element in CD36 promoter to PPARγ protein. Tamoxifen blocked ligand-induced PPARγ nuclear translocation and CD36 expression, but it increased PPARγ phosphorylation, which was due to that tamoxifen-activated ERK1/2. Furthermore, deficiency of PPARγ expression in macrophages abolished the inhibitory effect of tamoxifen on CD36 expression or cellular oxLDL accumulation both in vitro and in vivo Taken together, our study demonstrates that tamoxifen inhibits CD36 expression and cellular oxLDL accumulation by inactivating the PPARγ signaling pathway, and the inhibition of macrophage CD36 expression can be attributed to the anti-atherogenic properties of tamoxifen.
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Affiliation(s)
- Miao Yu
- From the College of Life Sciences
| | - Meixiu Jiang
- the Institute of Translational Medicine, Nanchang University, Nanchang 330000
| | - Yuanli Chen
- the College of Biomedical Engineering, Hefei University of Technology, Hefei 230009, and School of Medicine, and
| | | | | | | | | | - Yan Li
- From the College of Life Sciences
| | - Shengzhong Duan
- the Institute for Nutritional Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Jihong Han
- From the College of Life Sciences, the College of Biomedical Engineering, Hefei University of Technology, Hefei 230009, and the State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Biotherapy, Nankai University, Tianjin 300071,
| | - Yajun Duan
- From the College of Life Sciences, the College of Biomedical Engineering, Hefei University of Technology, Hefei 230009, and the State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Biotherapy, Nankai University, Tianjin 300071,
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16
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Cho E, Zhang Y, Pruznak A, Kim HM. Effect of tamoxifen on fatty degeneration and atrophy of rotator cuff muscles in chronic rotator cuff tear: An animal model study. J Orthop Res 2015; 33:1846-53. [PMID: 26121952 DOI: 10.1002/jor.22964] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 06/03/2015] [Indexed: 02/04/2023]
Abstract
Fatty degeneration of the rotator cuff muscles is an irreversible change resulting from chronic rotator cuff tear and is associated with poor clinical outcomes following rotator cuff repair. We evaluated the effect of Tamoxifen, a competitive estrogen receptor inhibitor, on fatty degeneration using a mouse model for chronic rotator cuff tear. Sixteen adult mice were divided into two diet groups (Tamoxifen vs. Regular) and subjected to surgical creation of a large rotator cuff tear and suprascapular nerve transection in their left shoulder with the right shoulder serving as a control. The rotator cuff muscles were harvested at 16 weeks and subjected to histology and RT-PCR for adipogenic and myogenic markers. Histology showed substantially decreased atrophy and endomysial inflammation in Tamoxifen group, but no significant differences in the amount of intramuscular adipocytes and lipid droplets compared to the Regular group. With RT-PCR, the operated shoulders showed significant upregulation of myogenin and PPAR-γ, and downregulation of myostatin compared to the nonsurgical shoulder. No significant differences of gene expression were found between the two diet groups. Our study demonstrated that tamoxifen diet leads to decreased muscle atrophy and inflammatory changes following chronic rotator cuff tear, but has no apparent effect on adipogenesis.
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Affiliation(s)
- Edward Cho
- Department of Orthopaedics and Rehabilitation, Penn State College of Medicine, Hershey, Pennsylvania
| | - Yue Zhang
- Department of Orthopaedics and Rehabilitation, Penn State College of Medicine, Hershey, Pennsylvania
| | - Anne Pruznak
- Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania
| | - H Mike Kim
- Department of Orthopaedics and Rehabilitation, Penn State College of Medicine, Hershey, Pennsylvania
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Yang AN, Zhang HP, Sun Y, Yang XL, Wang N, Zhu G, Zhang H, Xu H, Ma SC, Zhang Y, Li GZ, Jia YX, Cao J, Jiang YD. High-methionine diets accelerate atherosclerosis by HHcy-mediated FABP4 gene demethylation pathway via DNMT1 in ApoE−/−
mice. FEBS Lett 2015; 589:3998-4009. [DOI: 10.1016/j.febslet.2015.11.010] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 11/12/2015] [Accepted: 11/13/2015] [Indexed: 11/25/2022]
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18
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Thumser AE, Moore JB, Plant NJ. Fatty acid binding proteins: tissue-specific functions in health and disease. Curr Opin Clin Nutr Metab Care 2014; 17:124-9. [PMID: 24500438 DOI: 10.1097/mco.0000000000000031] [Citation(s) in RCA: 138] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW The purpose of this study is to review recent evidence for the role of the cytosolic fatty acid binding proteins (FABPs) as central regulators of whole-body metabolic control. RECENT FINDINGS Dysregulated FABPs have been associated with a number of diseases, including obesity and nonalcoholic fatty liver disease (FABP1, FABP2, FABP4), cardiovascular risk (FABP3) and cancer (FABP5, FABP7). As underlying mechanisms become better understood, FABPs may represent novel biomarkers for therapeutic targets. In addition, the role of FABPs as important signalling molecules has also been highlighted in recent years; for example, FABP3 may act as a myokine, matching whole-body metabolism to muscular energy demands and FABP4 functions as an adipokine in regulating macrophage and adipocyte interactions during inflammation. SUMMARY In addition to their traditional role as fatty acid trafficking proteins, increasing evidence supports the role of FABPs as important controllers of global metabolism, with their dysregulation being linked to a host of metabolic diseases.
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Affiliation(s)
- Alfred E Thumser
- aDepartment of Biochemistry and Physiology bDepartment of Nutritional Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
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