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Kou Y, Zhang S, Chen J, Shen Y, Zhang Z, Huang H, Ma Y, Xiang Y, Liao L, Zhou J, Cheng W, Zhou Y, Yang H, Liu Z, Wei Y, Wang H, Wang Y. A mouse protozoan boosts antigen-specific mucosal IgA responses in a specific lipid metabolism- and signaling-dependent manner. Nat Commun 2024; 15:7914. [PMID: 39256385 PMCID: PMC11387640 DOI: 10.1038/s41467-024-52336-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 09/03/2024] [Indexed: 09/12/2024] Open
Abstract
IgA antibodies play an important role in mucosal immunity. However, there is still no effective way to consistently boost mucosal IgA responses, and the factors influencing these responses are not fully understood. We observed that colonization with the murine intestinal symbiotic protozoan Tritrichomonas musculis (T.mu) boosted antigen-specific mucosal IgA responses in wild-type C57BL/6 mice. This enhancement was attributed to the accumulation of free arachidonic acid (ARA) in the intestinal lumen, which served as a signal to stimulate the production of antigen-specific mucosal IgA. When ARA was prevented from undergoing its downstream metabolic transformation using the 5-lipoxygenase inhibitor zileuton or by blocking its downstream biological signaling through genetic deletion of the Leukotriene B4 receptor 1 (Blt1), the T.mu-mediated enhancement of antigen-specific mucosal IgA production was suppressed. Moreover, both T.mu transfer and dietary supplementation of ARA augmented the efficacy of an oral vaccine against Salmonella infection, with this effect being dependent on Blt1. Our findings elucidate a tripartite circuit linking nutrients from the diet or intestinal microbiota, host lipid metabolism, and the mucosal humoral immune response.
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Affiliation(s)
- Yanbo Kou
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
- Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Shenghan Zhang
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
- Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
- Department of Central Laboratory, Xuzhou Central Hospital, Xuzhou, China
| | - Junru Chen
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
- Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Yusi Shen
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
- Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Zhiwei Zhang
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
- Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Haohan Huang
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
- Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Yulu Ma
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
- Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Yaoyao Xiang
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
- Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Longxiang Liao
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
- Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Junyang Zhou
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
- Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Wanpeng Cheng
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
- Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Yuan Zhou
- Xuzhou Key Laboratory of Laboratory Diagnostics, Medical Technology School, Xuzhou Medical University, Xuzhou, China
| | - Huan Yang
- Xuzhou Key Laboratory of Laboratory Diagnostics, Medical Technology School, Xuzhou Medical University, Xuzhou, China
| | - Zhuanzhuan Liu
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
- Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Yanxia Wei
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
- Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Hui Wang
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China
- Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Yugang Wang
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Medical University, Xuzhou, China.
- Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China.
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Qian C, Wang Q, Qiao Y, Xu Z, Zhang L, Xiao H, Lin Z, Wu M, Xia W, Yang H, Bai J, Geng D. Arachidonic acid in aging: New roles for old players. J Adv Res 2024:S2090-1232(24)00180-2. [PMID: 38710468 DOI: 10.1016/j.jare.2024.05.003] [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: 02/06/2024] [Revised: 04/26/2024] [Accepted: 05/03/2024] [Indexed: 05/08/2024] Open
Abstract
BACKGROUND Arachidonic acid (AA), one of the most ubiquitous polyunsaturated fatty acids (PUFAs), provides fluidity to mammalian cell membranes. It is derived from linoleic acid (LA) and can be transformed into various bioactive metabolites, including prostaglandins (PGs), thromboxanes (TXs), lipoxins (LXs), hydroxy-eicosatetraenoic acids (HETEs), leukotrienes (LTs), and epoxyeicosatrienoic acids (EETs), by different pathways. All these processes are involved in AA metabolism. Currently, in the context of an increasingly visible aging world population, several scholars have revealed the essential role of AA metabolism in osteoporosis, chronic obstructive pulmonary disease, and many other aging diseases. AIM OF REVIEW Although there are some reviews describing the role of AA in some specific diseases, there seems to be no or little information on the role of AA metabolism in aging tissues or organs. This review scrutinizes and highlights the role of AA metabolism in aging and provides a new idea for strategies for treating aging-related diseases. KEY SCIENTIFIC CONCEPTS OF REVIEW As a member of lipid metabolism, AA metabolism regulates the important lipids that interfere with the aging in several ways. We present a comprehensivereviewofthe role ofAA metabolism in aging, with the aim of relieving the extreme suffering of families and the heavy economic burden on society caused by age-related diseases. We also collected and summarized data on anti-aging therapies associated with AA metabolism, with the expectation of identifying a novel and efficient way to protect against aging.
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Affiliation(s)
- Chen Qian
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, PR China
| | - Qing Wang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, PR China
| | - Yusen Qiao
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, PR China
| | - Ze Xu
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 17 Lujiang Road, Hefei, Anhui 230031, PR China
| | - Linlin Zhang
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 17 Lujiang Road, Hefei, Anhui 230031, PR China
| | - Haixiang Xiao
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, PR China
| | - Zhixiang Lin
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, PR China
| | - Mingzhou Wu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, PR China
| | - Wenyu Xia
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, PR China
| | - Huilin Yang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, PR China.
| | - Jiaxiang Bai
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, 17 Lujiang Road, Hefei, Anhui 230031, PR China.
| | - Dechun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu 215006, PR China.
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Meng YW, Liu JY. Pathological and pharmacological functions of the metabolites of polyunsaturated fatty acids mediated by cyclooxygenases, lipoxygenases, and cytochrome P450s in cancers. Pharmacol Ther 2024; 256:108612. [PMID: 38369063 DOI: 10.1016/j.pharmthera.2024.108612] [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: 10/30/2023] [Revised: 01/19/2024] [Accepted: 02/05/2024] [Indexed: 02/20/2024]
Abstract
Oxylipins have garnered increasing attention because they were consistently shown to play pathological and/or pharmacological roles in the development of multiple cancers. Oxylipins are the metabolites of polyunsaturated fatty acids via both enzymatic and nonenzymatic pathways. The enzymes mediating the metabolism of PUFAs include but not limited to lipoxygenases (LOXs), cyclooxygenases (COXs), and cytochrome P450s (CYPs) pathways, as well as the down-stream enzymes. Here, we systematically summarized the pleiotropic effects of oxylipins in different cancers through pathological and pharmacological aspects, with specific reference to the enzyme-mediated oxylipins. We discussed the specific roles of oxylipins on cancer onset, growth, invasion, and metastasis, as well as the expression changes in the associated metabolic enzymes and the associated underlying mechanisms. In addition, we also discussed the clinical application and potential of oxylipins and related metabolic enzymes as the targets for cancer prevention and treatment. We found the specific function of most oxylipins in cancers, especially the underlying mechanisms and clinic applications, deserves and needs further investigation. We believe that research on oxylipins will provide not only more therapeutic targets for various cancers but also dietary guidance for both cancer patients and healthy humans.
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Affiliation(s)
- Yi-Wen Meng
- CNTTI of the Institute of Life Sciences & Department of Anesthesia of the Second Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China; Basic Medicine Research and Innovation Center for Novel Target and Therapeutic Intervention, Ministry of Education, Chongqing 400016, China
| | - Jun-Yan Liu
- CNTTI of the Institute of Life Sciences & Department of Anesthesia of the Second Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China; Basic Medicine Research and Innovation Center for Novel Target and Therapeutic Intervention, Ministry of Education, Chongqing 400016, China; College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
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4
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Naeem Z, Zukunft S, Huard A, Hu J, Hammock BD, Weigert A, Frömel T, Fleming I. Role of the soluble epoxide hydrolase in keratinocyte proliferation and sensitivity of skin to inflammatory stimuli. Biomed Pharmacother 2024; 171:116127. [PMID: 38198951 PMCID: PMC10857809 DOI: 10.1016/j.biopha.2024.116127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 12/31/2023] [Accepted: 01/02/2024] [Indexed: 01/12/2024] Open
Abstract
The lipid content of skin plays a determinant role in its barrier function with a particularly important role attributed to linoleic acid and its derivatives. Here we explored the consequences of interfering with the soluble epoxide hydrolase (sEH) on skin homeostasis. sEH; which converts fatty acid epoxides generated by cytochrome P450 enzymes to their corresponding diols, was largely restricted to the epidermis which was enriched in sEH-generated diols. Global deletion of the sEH increased levels of epoxides, including the linoleic acid-derived epoxide; 12,13-epoxyoctadecenoic acid (12,13-EpOME), and increased basal keratinocyte proliferation. sEH deletion (sEH-/- mice) resulted in thicker differentiated spinous and corneocyte layers compared to wild-type mice, a hyperkeratosis phenotype that was reproduced in wild-type mice treated with a sEH inhibitor. sEH deletion made the skin sensitive to inflammation and sEH-/- mice developed thicker imiquimod-induced psoriasis plaques than the control group and were more prone to inflammation triggered by mechanical stress with pronounced infiltration and activation of neutrophils as well as vascular leak and increased 12,13-EpOME and leukotriene (LT) B4 levels. Topical treatment of LTB4 antagonist after stripping successfully inhibited inflammation and neutrophil infiltration both in wild type and sEH-/- skin. While 12,13-EpoME had no effect on the trans-endothelial migration of neutrophils, like LTB4, it effectively induced neutrophil adhesion and activation. These observations indicate that while the increased accumulation of neutrophils in sEH-deficient skin could be attributed to the increase in LTB4 levels, both 12,13-EpOME and LTB4 contribute to neutrophil activation. Our observations identify a protective role of the sEH in the skin and should be taken into account when designing future clinical trials with sEH inhibitors.
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Affiliation(s)
- Zumer Naeem
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany
| | - Sven Zukunft
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany
| | - Arnaud Huard
- Institute of Biochemistry I, Goethe-University Frankfurt, Frankfurt am Main 60590, Germany
| | - Jiong Hu
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany; Department of Embryology and Histology, School of Basic Medicine, Tongi Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bruce D Hammock
- Department of Entomology and Nematology and Comprehensive Cancer Center, University of California, Davis, CA, USA
| | - Andreas Weigert
- Institute of Biochemistry I, Goethe-University Frankfurt, Frankfurt am Main 60590, Germany
| | - Timo Frömel
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany
| | - Ingrid Fleming
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany; German Center of Cardiovascular Research (DZHK), Partner site RheinMain, Frankfurt am Main, Germany; CardioPulmonary Institute, Goethe University, Frankfurt am Main, Germany.
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5
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Wei JD, Kim JH. Two distinct forms of human BLT2: long-form and short-form BLT2. Front Cell Dev Biol 2023; 11:1288373. [PMID: 37954206 PMCID: PMC10637354 DOI: 10.3389/fcell.2023.1288373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 10/11/2023] [Indexed: 11/14/2023] Open
Abstract
BLT2 is a low-affinity leukotriene B4 receptor that plays an essential role in the pathogenesis of various inflammatory diseases, including asthma and cancer. BLT2 is minimally expressed in a normal internal environment but is overexpressed in a stress-induced inflammatory environment. Recent research indicated that human BLT2 has two distinct forms. Although their functions are likely to be different, very few studies investigated these differences. Therefore, this paper will discuss about the two distinct forms of human BLT2; the short-form of BLT2 and the long-form of BLT2.
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Affiliation(s)
- Jun-Dong Wei
- Department of Basic Medical Science, Medical College, Taizhou University, Taizhou, China
| | - Jae-Hong Kim
- Division of Life Sciences, College of Life Sciences, Korea University, Seoul, Republic of Korea
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Ye X, Yu F, Zhou J, Zhao C, Wu J, Ni X. Analysis of the gut microbiota in children with gastroesophageal reflux disease using metagenomics and metabolomics. Front Cell Infect Microbiol 2023; 13:1267192. [PMID: 37900308 PMCID: PMC10613033 DOI: 10.3389/fcimb.2023.1267192] [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: 07/26/2023] [Accepted: 09/19/2023] [Indexed: 10/31/2023] Open
Abstract
Background There is no direct evidence of gut microbiota disturbance in children with gastroesophageal reflux disease (GERD). This study aimed to provide direct evidence and a comprehensive understanding of gut microbiota disturbance in children with GERD through combined metagenomic and metabolomic analysis. Methods 30 children with GERD and 30 healthy controls (HCs) were continuously enrolled, and the demographic and clinical characteristics of the subjects were collected. First, 16S rRNA sequencing was used to evaluate differences in the gut microbiota between children with GERD and HC group, and 10 children with GERD and 10 children in the HC group were selected for metagenomic analysis. Nontargeted metabolomic analysis was performed using liquid chromatography/mass spectrometry (LC/MS), and metagenomic and metabolomic data were analyzed together. Results There were significant differences in the gut microbiota diversity and composition between children with GERD and HCs. The dominant bacteria in children with GERD were Proteobacteria and Bacteroidota. At the species level, the top three core bacterial groups were Bacteroides stercoris, Bacteroides vulgatus and Alistipes putredinis. The main differential pathways were identified to be related to energy, amino acid, vitamin, carbohydrate and lipid metabolism. LC/MS detected 288 different metabolites in the positive and negative ion modes between children with GERD and HCs, which were mainly involved in arachidonic acid (AA), tyrosine, glutathione and caffeine metabolism. Conclusion This study provides new evidence of the pathogenesis of GERD. There are significant differences in the gut microbiota, metabolites and metabolic pathways between HCs and children with GERD, and the differences in metabolites are related to specific changes in bacterial abundance. In the future, GERD may be treated by targeting specific bacteria related to AA metabolism.
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Affiliation(s)
- Xiaolin Ye
- Department of Gastroenterology, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
| | - Feihong Yu
- Department of Gastroenterology, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
| | - Jin Zhou
- Department of Gastroenterology, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
| | - Chunna Zhao
- Department of Gastroenterology, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
| | - Jie Wu
- Department of Gastroenterology, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
| | - Xin Ni
- National Center for Pediatric Cancer Surveillance, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
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7
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Morin S, Tremblay A, Dumais E, Julien P, Flamand N, Pouliot R. Eicosapentaenoic Acid Influences the Lipid Profile of an In Vitro Psoriatic Skin Model Produced with T Cells. Biomolecules 2023; 13:1413. [PMID: 37759812 PMCID: PMC10526348 DOI: 10.3390/biom13091413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/07/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
Psoriasis is a skin disease characterized by epidermal hyperplasia and an inappropriate activation of the adaptive immunity. A dysregulation of the skin's lipid mediators is reported in the disease with a predominance of the inflammatory cascade derived from n-6 polyunsaturated fatty acids (n-6 PUFAs). Bioactive lipid mediators derived from arachidonic acid (AA) are involved in the inflammatory functions of T cells in psoriasis, whereas n-3 PUFAs' derivatives are anti-inflammatory metabolites. Here, we sought to evaluate the influence of a supplementation of the culture media with eicosapentaenoic acid (EPA) on the lipid profile of a psoriatic skin model produced with polarized T cells. Healthy and psoriatic skin substitutes were produced following the auto-assembly technique. Psoriatic skin substitutes produced with or without T cells presented increased epidermal and dermal linolenic acid (LA) and AA levels. N-6 PUFA lipid mediators were strongly measured in psoriatic substitutes, namely, 13-hydroxyoctadecadienoic acid (13-HODE), prostaglandin E2 (PGE2) and 12-hydroxyeicosatetraenoic acid (12-HETE). The added EPA elevated the amounts of EPA, n-3 docosapentaenoic acid (DPA) and docosahexaenoic acid (DHA) in the epidermal and dermal phospholipids. The EPA supplementation balanced the production of epidermal lipid mediators, with an increase in prostaglandin E3 (PGE3), 12-hydroxyeicosapentaenoic acid (12-HEPE) and N-eicosapentaenoyl-ethanolamine (EPEA) levels. These findings show that EPA modulates the lipid composition of psoriatic skin substitutes by encouraging the return to a cutaneous homeostatic state.
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Affiliation(s)
- Sophie Morin
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Axe Médecine Régénératrice, Centre de Recherche du CHU de Québec-Université Laval, 1401 18e Rue, Québec, QC G1J 2Z4, Canada; (S.M.); (A.T.)
- Faculté de Pharmacie, Université Laval, Québec, QC G1V 0A6, Canada
| | - Andréa Tremblay
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Axe Médecine Régénératrice, Centre de Recherche du CHU de Québec-Université Laval, 1401 18e Rue, Québec, QC G1J 2Z4, Canada; (S.M.); (A.T.)
- Faculté de Pharmacie, Université Laval, Québec, QC G1V 0A6, Canada
| | - Elizabeth Dumais
- Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC G1V 4G5, Canada; (E.D.); (N.F.)
- Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC G1V 0A6, Canada
| | - Pierre Julien
- Centre de Recherche du CHU de Québec-Université Laval, Axe Endocrinologie et Néphrologie, Université Laval, Québec, QC G1V 4G2, Canada;
- Département de Médecine, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
| | - Nicolas Flamand
- Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC G1V 4G5, Canada; (E.D.); (N.F.)
- Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC G1V 0A6, Canada
- Département de Médecine, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
| | - Roxane Pouliot
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Axe Médecine Régénératrice, Centre de Recherche du CHU de Québec-Université Laval, 1401 18e Rue, Québec, QC G1J 2Z4, Canada; (S.M.); (A.T.)
- Faculté de Pharmacie, Université Laval, Québec, QC G1V 0A6, Canada
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Hébert MPA, Selka A, Lebel AA, Doiron JA, Isabel Chiasson A, Gauvin VL, Matthew AJ, Hébert MJG, Doucet MS, Joy AP, Barnett DA, Touaibia M, Surette ME, Boudreau LH. Caffeic acid phenethyl ester analogues as selective inhibitors of 12-lipoxygenase product biosynthesis in human platelets. Int Immunopharmacol 2023; 121:110419. [PMID: 37295028 DOI: 10.1016/j.intimp.2023.110419] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 05/17/2023] [Accepted: 05/30/2023] [Indexed: 06/11/2023]
Abstract
The inflammatory response is an essential process for the host defence against pathogens. Lipid mediators are important in coordinating the pro-inflammatory and pro-resolution phases of the inflammatory process. However, unregulated production of these mediators has been associated with chronic inflammatory diseases such as arthritis, asthma, cardiovascular diseases, and several types of cancer. Therefore, it is not surprising that enzymes implicated in the production of these lipid mediators have been targeted for potential therapeutic approaches. Amongst these inflammatory molecules, the 12-hydroxyeicosatetraenoic acid (12(S)-HETE) is abundantly produced in several diseases and is primarily biosynthesized via the platelet's 12-lipoxygenase (12-LO) pathway. To this day, very few compounds selectively inhibit the 12-LO pathway, and most importantly, none are currently used in the clinical settings. In this study, we investigated a series of polyphenol analogues of natural polyphenols that inhibit the 12-LO pathway in human platelets without affecting other normal functions of the cell. Using an ex vivo approach, we found one compound that selectively inhibited the 12-LO pathway, with IC50 values as low as 0.11 µM, with minimal inhibition of other lipoxygenase or cyclooxygenase pathways. More importantly, our data show that none of the compounds tested induced significant off-target effects on either the platelet's activation or its viability. In the continuous search for specific and better inhibitors targeting the regulation of inflammation, we characterized two novel inhibitors of the 12-LO pathway that could be promising for subsequent in vivo studies.
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Affiliation(s)
- Mathieu P A Hébert
- Department of Chemistry and Biochemistry, Université de Moncton, 18 Antonine-Maillet Avenue, Moncton, New Brunswick E1A 3E9, Canada; New Brunswick Center for Precision Medicine, 27 Providence Street, Moncton, New Brunswick E1C 8X3, Canada
| | - Ayyoub Selka
- Department of Chemistry and Biochemistry, Université de Moncton, 18 Antonine-Maillet Avenue, Moncton, New Brunswick E1A 3E9, Canada
| | - Andréa A Lebel
- Department of Chemistry and Biochemistry, Université de Moncton, 18 Antonine-Maillet Avenue, Moncton, New Brunswick E1A 3E9, Canada; New Brunswick Center for Precision Medicine, 27 Providence Street, Moncton, New Brunswick E1C 8X3, Canada
| | - Jérémie A Doiron
- Department of Chemistry and Biochemistry, Université de Moncton, 18 Antonine-Maillet Avenue, Moncton, New Brunswick E1A 3E9, Canada; New Brunswick Center for Precision Medicine, 27 Providence Street, Moncton, New Brunswick E1C 8X3, Canada
| | - Audrey Isabel Chiasson
- Department of Chemistry and Biochemistry, Université de Moncton, 18 Antonine-Maillet Avenue, Moncton, New Brunswick E1A 3E9, Canada
| | - Vanessa L Gauvin
- Department of Chemistry and Biochemistry, Université de Moncton, 18 Antonine-Maillet Avenue, Moncton, New Brunswick E1A 3E9, Canada; New Brunswick Center for Precision Medicine, 27 Providence Street, Moncton, New Brunswick E1C 8X3, Canada
| | - Alexis J Matthew
- Department of Chemistry and Biochemistry, Université de Moncton, 18 Antonine-Maillet Avenue, Moncton, New Brunswick E1A 3E9, Canada; New Brunswick Center for Precision Medicine, 27 Providence Street, Moncton, New Brunswick E1C 8X3, Canada
| | - Martin J G Hébert
- Department of Chemistry and Biochemistry, Université de Moncton, 18 Antonine-Maillet Avenue, Moncton, New Brunswick E1A 3E9, Canada
| | - Marco S Doucet
- Department of Chemistry and Biochemistry, Université de Moncton, 18 Antonine-Maillet Avenue, Moncton, New Brunswick E1A 3E9, Canada
| | - Andrew P Joy
- Atlantic Cancer Research Institute, Moncton, 27 Providence Street, Moncton, New Brunswick E1C 8X3, Canada
| | - David A Barnett
- Atlantic Cancer Research Institute, Moncton, 27 Providence Street, Moncton, New Brunswick E1C 8X3, Canada
| | - Mohamed Touaibia
- Department of Chemistry and Biochemistry, Université de Moncton, 18 Antonine-Maillet Avenue, Moncton, New Brunswick E1A 3E9, Canada.
| | - Marc E Surette
- Department of Chemistry and Biochemistry, Université de Moncton, 18 Antonine-Maillet Avenue, Moncton, New Brunswick E1A 3E9, Canada; New Brunswick Center for Precision Medicine, 27 Providence Street, Moncton, New Brunswick E1C 8X3, Canada
| | - Luc H Boudreau
- Department of Chemistry and Biochemistry, Université de Moncton, 18 Antonine-Maillet Avenue, Moncton, New Brunswick E1A 3E9, Canada; New Brunswick Center for Precision Medicine, 27 Providence Street, Moncton, New Brunswick E1C 8X3, Canada.
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9
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Tamás SX, Roux BT, Vámosi B, Dehne FG, Török A, Fazekas L, Enyedi B. A genetically encoded sensor for visualizing leukotriene B4 gradients in vivo. Nat Commun 2023; 14:4610. [PMID: 37528073 PMCID: PMC10393954 DOI: 10.1038/s41467-023-40326-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 07/22/2023] [Indexed: 08/03/2023] Open
Abstract
Leukotriene B4 (LTB4) is a potent lipid chemoattractant driving inflammatory responses during host defense, allergy, autoimmune and metabolic diseases. Gradients of LTB4 orchestrate leukocyte recruitment and swarming to sites of tissue damage and infection. How LTB4 gradients form and spread in live tissues to regulate these processes remains largely elusive due to the lack of suitable tools for monitoring LTB4 levels in vivo. Here, we develop GEM-LTB4, a genetically encoded green fluorescent LTB4 biosensor based on the human G-protein-coupled receptor BLT1. GEM-LTB4 shows high sensitivity, specificity and a robust fluorescence increase in response to LTB4 without affecting downstream signaling pathways. We use GEM-LTB4 to measure ex vivo LTB4 production of murine neutrophils. Transgenic expression of GEM-LTB4 in zebrafish allows the real-time visualization of both exogenously applied and endogenously produced LTB4 gradients. GEM-LTB4 thus serves as a broadly applicable tool for analyzing LTB4 dynamics in various experimental systems and model organisms.
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Affiliation(s)
- Szimonetta Xénia Tamás
- Department of Physiology, Semmelweis University, Faculty of Medicine, Tűzoltó utca 37-47, H-1094, Budapest, Hungary
- MTA-SE Lendület Tissue Damage Research Group, Hungarian Academy of Sciences and Semmelweis University, H-1094, Budapest, Hungary
- HCEMM-SE Inflammatory Signaling Research Group, Department of Physiology, Semmelweis University, H-1094, Budapest, Hungary
| | - Benoit Thomas Roux
- Department of Physiology, Semmelweis University, Faculty of Medicine, Tűzoltó utca 37-47, H-1094, Budapest, Hungary
- HCEMM-SE Inflammatory Signaling Research Group, Department of Physiology, Semmelweis University, H-1094, Budapest, Hungary
| | - Boldizsár Vámosi
- Department of Physiology, Semmelweis University, Faculty of Medicine, Tűzoltó utca 37-47, H-1094, Budapest, Hungary
| | - Fabian Gregor Dehne
- Department of Physiology, Semmelweis University, Faculty of Medicine, Tűzoltó utca 37-47, H-1094, Budapest, Hungary
- HCEMM-SE Inflammatory Signaling Research Group, Department of Physiology, Semmelweis University, H-1094, Budapest, Hungary
| | - Anna Török
- Department of Physiology, Semmelweis University, Faculty of Medicine, Tűzoltó utca 37-47, H-1094, Budapest, Hungary
- HCEMM-SE Inflammatory Signaling Research Group, Department of Physiology, Semmelweis University, H-1094, Budapest, Hungary
| | - László Fazekas
- Department of Physiology, Semmelweis University, Faculty of Medicine, Tűzoltó utca 37-47, H-1094, Budapest, Hungary
- MTA-SE Lendület Tissue Damage Research Group, Hungarian Academy of Sciences and Semmelweis University, H-1094, Budapest, Hungary
- HCEMM-SE Inflammatory Signaling Research Group, Department of Physiology, Semmelweis University, H-1094, Budapest, Hungary
| | - Balázs Enyedi
- Department of Physiology, Semmelweis University, Faculty of Medicine, Tűzoltó utca 37-47, H-1094, Budapest, Hungary.
- MTA-SE Lendület Tissue Damage Research Group, Hungarian Academy of Sciences and Semmelweis University, H-1094, Budapest, Hungary.
- HCEMM-SE Inflammatory Signaling Research Group, Department of Physiology, Semmelweis University, H-1094, Budapest, Hungary.
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10
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Kato S, Onishi S, Sasai M, Yasuda H, Saeki K, Matsumoto K, Yokomizo T. Deficiency of leukotriene B4 receptor type 1 ameliorates ovalbumin-induced allergic enteritis in mice. Clin Exp Pharmacol Physiol 2023. [PMID: 37406678 DOI: 10.1111/1440-1681.13808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/30/2023] [Accepted: 06/24/2023] [Indexed: 07/07/2023]
Abstract
Leukotriene B4 receptor type 1 (BLT1), a high-affinity receptor for leukotriene B4 (LTB4), plays an important role in inflammatory responses, including allergic airway inflammation. In this study, we examined the effect of genetic BLT1 deletion (BLT1KO) on ovalbumin (OVA)-induced allergic enteritis in mice to determine the pathogenic role of LTB4/BLT1 in allergic enteritis, a gastrointestinal form of food allergy. Repeated oral OVA challenges after sensitization with OVA and aluminium potassium sulphate induced allergic enteritis, characterized by systemic allergic symptoms (scratching, immobility and swelling), diarrhoea, colonic oedema and colonic goblet cell hyperplasia, accompanied by increased colonic peroxidase activity, colonic inflammatory cytokine expression and increased serum OVA-specific IgE levels. The severity of enteritis was significantly attenuated in BLT1KO mice compared with wild-type (WT) mice, without an increase in serum OVA-specific IgE levels. The accumulation of neutrophils, eosinophils, M2-macrophages, dendritic cells, CD4+ T cells and mast cells was observed in the colonic mucosa of allergic enteritis, and such accumulation was significantly lower in BLT1KO mice than in WT mice. BLT1 expression was upregulated and colocalized mostly in neutrophils and partly in eosinophils and dendritic cells in the colonic mucosa of allergic enteritis. These findings indicate that BLT1 deficiency ameliorates OVA-induced allergic enteritis in mice and that LTB4/BLT1 contributes to neutrophil and eosinophil accumulation in the allergic colonic mucosa. Therefore, BLT1 is a promising drug target for treating food allergies.
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Affiliation(s)
- Shinichi Kato
- Division of Pathological Sciences, Laboratory of Pharmacology and Experimental Therapeutics, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Suzuka Onishi
- Division of Pathological Sciences, Laboratory of Pharmacology and Experimental Therapeutics, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Misaki Sasai
- Division of Pathological Sciences, Laboratory of Pharmacology and Experimental Therapeutics, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Hiroyuki Yasuda
- Division of Pathological Sciences, Laboratory of Pharmacology and Experimental Therapeutics, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Kazuko Saeki
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Bunkyo, Japan
| | - Kenjiro Matsumoto
- Division of Pathological Sciences, Laboratory of Pharmacology and Experimental Therapeutics, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Takehiko Yokomizo
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Bunkyo, Japan
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11
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Zhou M, Li J, Xu J, Zheng L, Xu S. Exploring human CYP4 enzymes: physiological roles, function in diseases and focus on inhibitors. Drug Discov Today 2023; 28:103560. [PMID: 36958639 DOI: 10.1016/j.drudis.2023.103560] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 03/06/2023] [Accepted: 03/16/2023] [Indexed: 03/25/2023]
Abstract
The cytochrome P450 (CYP)4 family of enzymes are monooxygenases responsible for the ω-oxidation of endogenous fatty acids and eicosanoids and play a crucial part in regulating numerous eicosanoid signaling pathways. Recently, CYP4 gained attention as a potential therapeutic target for several human diseases, including cancer, cardiovascular diseases and inflammation. Small-molecule inhibitors of CYP4 could provide promising treatments for these diseases. The aim of the present review is to highlight the advances in the field of CYP4, discussing the physiology and pathology of the CYP4 family and compiling CYP4 inhibitors into groups based on their chemical classes to provide clues for the future discovery of drug candidates targeting CYP4. Teaser: This review provides an updated view of the physiology and pathology of CYP4 enzymes. CYP4 inhibitors are compiled based on their skeletons to provide clues for the future discovery of drug candidates targeting CYP4.
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Affiliation(s)
- Manzhen Zhou
- Department of Medicinal Chemistry, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Junda Li
- Department of Medicinal Chemistry, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Jinyi Xu
- Department of Medicinal Chemistry, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Lufeng Zheng
- School of Life Science and Technology, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Shengtao Xu
- Department of Medicinal Chemistry, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China; Department of Hepatobiliary Surgery, The First People's Hospital of Kunshan, Suzhou, 215300, China.
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12
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Uriarte SM, Hajishengallis G. Neutrophils in the periodontium: Interactions with pathogens and roles in tissue homeostasis and inflammation. Immunol Rev 2023; 314:93-110. [PMID: 36271881 PMCID: PMC10049968 DOI: 10.1111/imr.13152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Neutrophils are of key importance in periodontal health and disease. In their absence or when they are functionally defective, as occurs in certain congenital disorders, affected individuals develop severe forms of periodontitis in early age. These observations imply that the presence of immune-competent neutrophils is essential to homeostasis. However, the presence of supernumerary or hyper-responsive neutrophils, either because of systemic priming or innate immune training, leads to imbalanced host-microbe interactions in the periodontium that culminate in dysbiosis and inflammatory tissue breakdown. These disease-provoking imbalanced interactions are further exacerbated by periodontal pathogens capable of subverting neutrophil responses to their microbial community's benefit and the host's detriment. This review attempts a synthesis of these findings for an integrated view of the neutrophils' ambivalent role in periodontal disease and, moreover, discusses how some of these concepts underpin the development of novel therapeutic approaches to treat periodontal disease.
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Affiliation(s)
- Silvia M. Uriarte
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY, USA
| | - George Hajishengallis
- Department of Basic and Translational Sciences, Laboratory of Innate Immunity and Inflammation, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
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13
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Shioda R, Jo-Watanabe A, Okuno T, Saeki K, Nakayama M, Suzuki Y, Yokomizo T. The leukotriene B 4 /BLT1-dependent neutrophil accumulation exacerbates immune complex-mediated glomerulonephritis. FASEB J 2023; 37:e22789. [PMID: 36692419 DOI: 10.1096/fj.202201936r] [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: 11/20/2022] [Revised: 12/25/2022] [Accepted: 01/11/2023] [Indexed: 01/25/2023]
Abstract
Crescent formation is the most important pathological finding that defines the prognosis of nephritis. Although neutrophils are known to play an important role in the progression of crescentic glomerulonephritis, such as anti-neutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis, the key chemoattractant for neutrophils in ANCA-associated glomerulonephritis has not been identified. Here, we demonstrate that a lipid chemoattractant, leukotriene B4 (LTB4 ), and its receptor BLT1 are primarily involved in disease pathogenesis in a mouse model of immune complex-mediated crescentic glomerulonephritis. Circulating neutrophils accumulated into glomeruli within 1 h after disease onset, which was accompanied by LTB4 accumulation in the kidney cortex, leading to kidney injury. LTB4 was produced by cross-linking of Fc gamma receptors on neutrophils. Mice deficient in BLT1 or LTB4 biosynthesis exhibited suppressed initial neutrophil infiltration and subsequent thrombotic glomerulonephritis and renal fibrosis. Depletion of neutrophils before, but not after, disease onset prevented proteinuria and kidney injury, indicating the essential role of neutrophils in the early phase of glomerulonephritis. Administration of a BLT1 antagonist before and after disease onset almost completely suppressed induction of glomerulonephritis. Finally, we found that the glomeruli from patients with ANCA-associated glomerulonephritis contained more BLT1-positive cells than glomeruli from patients with other etiologies. Taken together, the LTB4 -BLT1 axis is the key driver of neutrophilic glomerular inflammation, and will be a novel therapeutic target for the crescentic glomerulonephritis.
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Affiliation(s)
- Ryotaro Shioda
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Department of Nephrology, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Airi Jo-Watanabe
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, Japan.,AMED-PRIME, Japan Agency for Medical Research and Development, Tokyo, Japan
| | - Toshiaki Okuno
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Kazuko Saeki
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Maiko Nakayama
- Department of Nephrology, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Yusuke Suzuki
- Department of Nephrology, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Takehiko Yokomizo
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, Japan
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14
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Antonello P, Pizzagalli DU, Foglierini M, Melgrati S, Radice E, Thelen S, Thelen M. ACKR3 promotes CXCL12/CXCR4-mediated cell-to-cell-induced lymphoma migration through LTB4 production. Front Immunol 2023; 13:1067885. [PMID: 36713377 PMCID: PMC9878562 DOI: 10.3389/fimmu.2022.1067885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 12/22/2022] [Indexed: 01/14/2023] Open
Abstract
Chemotaxis is an essential physiological process, often harnessed by tumors for metastasis. CXCR4, its ligand CXCL12 and the atypical receptor ACKR3 are overexpressed in many human cancers. Interfering with this axis by ACKR3 deletion impairs lymphoma cell migration towards CXCL12. Here, we propose a model of how ACKR3 controls the migration of the diffused large B-cell lymphoma VAL cells in vitro and in vivo in response to CXCL12. VAL cells expressing full-length ACKR3, but not a truncated version missing the C-terminus, can support the migration of VAL cells lacking ACKR3 (VAL-ko) when allowed to migrate together. This migration of VAL-ko cells is pertussis toxin-sensitive suggesting the involvement of a Gi-protein coupled receptor. RNAseq analysis indicate the expression of chemotaxis-mediating LTB4 receptors in VAL cells. We found that LTB4 acts synergistically with CXCL12 in stimulating the migration of VAL cells. Pharmacologic or genetic inhibition of BLT1R markedly reduces chemotaxis towards CXCL12 suggesting that LTB4 enhances in a contact-independent manner the migration of lymphoma cells. The results unveil a novel mechanism of cell-to-cell-induced migration of lymphoma.
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Affiliation(s)
- Paola Antonello
- Faculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana, Bellinzona, Switzerland
- Graduate School of Cellular and Molecular Sciences, University of Bern, Bern, Switzerland
| | - Diego U. Pizzagalli
- Faculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana, Bellinzona, Switzerland
- Università della Svizzera italiana, Euler Institute, Lugano-Viganello, Switzerland
| | - Mathilde Foglierini
- Faculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana, Bellinzona, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Serena Melgrati
- Faculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana, Bellinzona, Switzerland
- Graduate School of Cellular and Molecular Sciences, University of Bern, Bern, Switzerland
| | - Egle Radice
- Faculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana, Bellinzona, Switzerland
| | - Sylvia Thelen
- Faculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana, Bellinzona, Switzerland
| | - Marcus Thelen
- Faculty of Biomedical Sciences, Institute for Research in Biomedicine, Università della Svizzera italiana, Bellinzona, Switzerland
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15
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Formyl peptide receptor 2 as a potential therapeutic target for inflammatory bowel disease. Acta Pharmacol Sin 2023; 44:19-31. [PMID: 35840658 DOI: 10.1038/s41401-022-00944-0] [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: 04/22/2022] [Accepted: 06/15/2022] [Indexed: 01/18/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a global health burden whose existing treatment is largely dependent on anti-inflammatory agents. Despite showing some therapeutic actions, their clinical efficacy and adverse events are unacceptable. Resolution as an active and orchestrated phase of inflammation involves improper inflammatory response with three key triggers, specialized pro-resolving mediators (SPMs), neutrophils and phagocyte efferocytosis. The formyl peptide receptor 2 (FPR2/ALX) is a human G protein-coupled receptor capable of binding SPMs and participates in the resolution process. This receptor has been implicated in several inflammatory diseases and its association with mouse model of IBD was established in some resolution-related studies. Here, we give an overview of three reported FPR2/ALX agonists highlighting their respective roles in pro-resolving strategies.
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16
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Wound healing approach based on excretory-secretory product and lysate of liver flukes. Sci Rep 2022; 12:21639. [PMID: 36517588 PMCID: PMC9751068 DOI: 10.1038/s41598-022-26275-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Exogenous bioactive peptides are considered promising for the wound healing therapy in humans. In this regard, parasitic trematodes proteins may potentially become a new perspective agents. Foodborne trematode Opisthorchis felineus is widespread in Europe and has the ability to stimulate proliferation of bile duct epithelium. In this study, we investigated skin wound healing potential of O. felineus proteins in mouse model. C57Bl/6 mice were inflicted with superficial wounds with 8 mm diameter. Experimental groups included several non-specific controls and specific treatment groups (excretory-secretory product and lysate). After 10 days of the experiment, the percentage of wound healing in the specific treatment groups significantly exceeded the control values. We also found that wound treatment with excretory-secretory product and worm lysate resulted in: (i) inflammation reducing, (ii) vascular response modulating, (iii) type 1 collagen deposition promoting dermal ECM remodeling. An additional proteomic analysis of excretory-secretory product and worm lysate samples was revealed 111 common proteins. The obtained data indicate a high wound-healing potential of liver fluke proteins and open prospects for further research as new therapeutic approaches.
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17
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Hajishengallis G, Chavakis T. Mechanisms and Therapeutic Modulation of Neutrophil-Mediated Inflammation. J Dent Res 2022; 101:1563-1571. [PMID: 35786033 PMCID: PMC9703529 DOI: 10.1177/00220345221107602] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Neutrophils are abundant, short-lived myeloid cells that are readily recruitable to sites of inflammation, where they serve as first-line defense against infection and other types of insult to the host. In recent years, there has been increased understanding on the involvement of neutrophils in chronic inflammatory diseases, where they may act as direct effectors of destructive inflammation. However, destructive tissue inflammation is also instigated in settings of neutrophil paucity, suggesting that neutrophils also mediate critical homeostatic functions. The activity of neutrophils is regulated by a variety of local tissue factors. In addition, systemic metabolic conditions, such as hypercholesterolemia and hyperglycemia, affect the production and mobilization of neutrophils from the bone marrow. Moreover, according to the recently emerged concept of innate immune memory, the functions of neutrophils can be enhanced through the process of trained granulopoiesis. This process may have both beneficial and potentially destructive effects, depending on context, that is, protective against infections and tumors, while destructive in the context of chronic inflammatory conditions. Although we are far from a complete understanding of the mechanisms underlying the regulation and function of neutrophils, current insights enable the development of targeted therapeutic interventions that can restrain neutrophil-mediated inflammation in chronic inflammatory diseases, such as periodontitis.
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Affiliation(s)
- G. Hajishengallis
- Department of Basic and Translational Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - T. Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Sachsen, Germany
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18
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Pang Y, Liu X, Zhao C, Shi X, Zhang J, Zhou T, Xiong H, Gao X, Zhao X, Yang X, Ning G, Zhang X, Feng S, Yao X. LC-MS/MS-based arachidonic acid metabolomics in acute spinal cord injury reveals the upregulation of 5-LOX and COX-2 products. Free Radic Biol Med 2022; 193:363-372. [PMID: 36272669 DOI: 10.1016/j.freeradbiomed.2022.10.303] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/12/2022] [Accepted: 10/17/2022] [Indexed: 11/27/2022]
Abstract
Arachidonic acid (AA) plays a critical role in inflammatory regulation and secondary injury after spinal cord injury (SCI). However, the overall AA metabolism profile in the acute phase of SCI remains elusive. Here we quantified AA metabolomics by High Performance Liquid Chromatography-Tandem Mass Spectrometry-Based Method (LC-MS/MS) using spinal cord tissue collected at 4 h, 24 h and 48 h after contusive SCI in rats. Remarkably, Prostaglandin E2 (PGE2) and Leukotriene B4 (LTB4) were significantly increased throughout the acute SCI. Cyclooxygenase-2 (COX-2) and 5-lipoxygenase (5-LOX), the key enzymes involved in the production of PGE2 and LTB4, were elevated in the lesioned spinal cord tissue, validated by both western blot and immunofluorecnce. The spatial-temporal changes of COX-2 and 5-LOX mainly occurs in neurons both in epicenter and rostral and caudal spinal cord segments after SCI. Our study sheds light on the dynamic microenvironment changes in acute SCI by characterizing the profile of AA metabolism. The COX-2 and 5-LOX may be promising therapeutic target for SCI.
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Affiliation(s)
- Yilin Pang
- Tianjin Key Laboratory of Spine and Spinal Cord, International Science and Technology Cooperation Base of Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, International Chinese Musculoskeletal Research Society Collaborating Center for Spinal Cord Injury, Tianjin, China
| | - Xinjie Liu
- Tianjin Key Laboratory of Spine and Spinal Cord, International Science and Technology Cooperation Base of Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, International Chinese Musculoskeletal Research Society Collaborating Center for Spinal Cord Injury, Tianjin, China
| | - Chenxi Zhao
- Orthopedic Research Center of Shandong University & Department of Orthopedics, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xuelian Shi
- Tianjin Key Laboratory of Metabolic Diseases, Department of Physiology and Pathophysiology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Center for Cardiovascular Diseases, Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Jiawei Zhang
- Tianjin Key Laboratory of Spine and Spinal Cord, International Science and Technology Cooperation Base of Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, International Chinese Musculoskeletal Research Society Collaborating Center for Spinal Cord Injury, Tianjin, China
| | - Tiangang Zhou
- Tianjin Key Laboratory of Spine and Spinal Cord, International Science and Technology Cooperation Base of Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, International Chinese Musculoskeletal Research Society Collaborating Center for Spinal Cord Injury, Tianjin, China
| | - Haoning Xiong
- Tianjin Key Laboratory of Spine and Spinal Cord, International Science and Technology Cooperation Base of Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, International Chinese Musculoskeletal Research Society Collaborating Center for Spinal Cord Injury, Tianjin, China
| | - Xiang Gao
- Tianjin Key Laboratory of Spine and Spinal Cord, International Science and Technology Cooperation Base of Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, International Chinese Musculoskeletal Research Society Collaborating Center for Spinal Cord Injury, Tianjin, China
| | - Xiaoqing Zhao
- Orthopedic Research Center of Shandong University & Department of Orthopedics, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xingjian Yang
- Department of Biology, Grinnell College, Grinnell, IA, USA
| | - Guangzhi Ning
- Tianjin Key Laboratory of Spine and Spinal Cord, International Science and Technology Cooperation Base of Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, International Chinese Musculoskeletal Research Society Collaborating Center for Spinal Cord Injury, Tianjin, China
| | - Xu Zhang
- Tianjin Key Laboratory of Metabolic Diseases, Department of Physiology and Pathophysiology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Center for Cardiovascular Diseases, Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Shiqing Feng
- Tianjin Key Laboratory of Spine and Spinal Cord, International Science and Technology Cooperation Base of Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, International Chinese Musculoskeletal Research Society Collaborating Center for Spinal Cord Injury, Tianjin, China; Orthopedic Research Center of Shandong University & Department of Orthopedics, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
| | - Xue Yao
- Tianjin Key Laboratory of Spine and Spinal Cord, International Science and Technology Cooperation Base of Spinal Cord Injury, Department of Orthopedics, Tianjin Medical University General Hospital, International Chinese Musculoskeletal Research Society Collaborating Center for Spinal Cord Injury, Tianjin, China; Orthopedic Research Center of Shandong University & Department of Orthopedics, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
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19
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Reyes AWB, Kim H, Huy TXN, Nguyen TT, Min W, Lee D, Hur J, Lee JH, Kim S. The In Vitro and In Vivo Effect of Lipoxygenase Pathway Inhibitors Nordihydroguaiaretic Acid and Its Derivative Tetra- O-methyl Nordihydroguaiaretic Acid against Brucella abortus 544. J Microbiol Biotechnol 2022; 32:1126-1133. [PMID: 36039381 PMCID: PMC9628969 DOI: 10.4014/jmb.2207.07026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/09/2022] [Accepted: 08/25/2022] [Indexed: 12/15/2022]
Abstract
This study investigated the contribution of lipoxygenase (LOX) inhibitors, nordihydroguaiaretic acid (NDGA), tetra-O-methyl nordihydroguaiaretic acid (M4N) and zileuton (ZIL), and thromboxane A2 (TXA2) inhibitor 4,5-diphenylimidazole (DPI) in the proliferation of Brucella abortus infection. None of the compounds affected the uptake of Brucella into the macrophages. We determined the effect of neutralizing leukotriene B4 (LTB4) receptor and showed that the uptake of the bacteria was inhibited at 30 min post-infection. M4N treatment attenuated intracellular survival of Brucella at 2 h post-incubation but it was not observed in the succeeding time points. DPI treatment showed reduced survival of Brucella at 24 h post-incubation while blocking LTB4 receptor was observed to have a lower intracellular growth at 48 h post-incubation suggesting different action of the inhibitors in the course of the survival of Brucella within the cells. Reduced proliferation of the bacteria in the spleens of mice was observed in animals treated with ZIL or DPI. Increased serum cytokine level of TNF-α and MCP-1 was observed in mice treated with M4N or ZIL while a lower IFN-γ level in ZIL-treated mice and a higher IL-12 serum level in DPI-treated mice were observed at 7 d post-infection. At 14 d post-infection, ZIL-treated mice displayed reduced serum level of IL-12 and IL-10. Overall, inhibition of 5-LOX or TXA2 or a combination therapy promises a potential alternative therapy against B. abortus infection. Furthermore, strong ligands for LTB4 receptor could also be a good candidate for the control of Brucella infection.
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Affiliation(s)
- Alisha Wehdnesday Bernardo Reyes
- Department of Veterinary Paraclinical Sciences, College of Veterinary Medicine, University of the Philippines Los Baños, College, Laguna 4031, Philippines
| | - Heejin Kim
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Tran Xuan Ngoc Huy
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Trang Thi Nguyen
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Wongi Min
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Dongho Lee
- College of Medicine, Inje University, Busan, 47392, Republic of Korea
| | - Jin Hur
- College of Veterinary Medicine, Chonbuk National University, Iksan 54596, Republic of Korea
| | - John Hwa Lee
- College of Veterinary Medicine, Chonbuk National University, Iksan 54596, Republic of Korea
| | - Suk Kim
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea,Corresponding author Phone +82-55-772-2359 Fax: +82-55-772-2349 E-mail:
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20
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The Role and Regulation of Thromboxane A2 Signaling in Cancer-Trojan Horses and Misdirection. Molecules 2022; 27:molecules27196234. [PMID: 36234768 PMCID: PMC9573598 DOI: 10.3390/molecules27196234] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/09/2022] [Accepted: 09/09/2022] [Indexed: 11/24/2022] Open
Abstract
Over the last two decades, there has been an increasing awareness of the role of eicosanoids in the development and progression of several types of cancer, including breast, prostate, lung, and colorectal cancers. Several processes involved in cancer development, such as cell growth, migration, and angiogenesis, are regulated by the arachidonic acid derivative thromboxane A2 (TXA2). Higher levels of circulating TXA2 are observed in patients with multiple cancers, and this is accompanied by overexpression of TXA2 synthase (TBXAS1, TXA2S) and/or TXA2 receptors (TBXA2R, TP). Overexpression of TXA2S or TP in tumor cells is generally associated with poor prognosis, reduced survival, and metastatic disease. However, the role of TXA2 signaling in the stroma during oncogenesis has been underappreciated. TXA2 signaling regulates the tumor microenvironment by modulating angiogenic potential, tumor ECM stiffness, and host immune response. Moreover, the by-products of TXA2S are highly mutagenic and oncogenic, adding to the overall phenotype where TXA2 synthesis promotes tumor formation at various levels. The stability of synthetic enzymes and receptors in this pathway in most cancers (with few mutations reported) suggests that TXA2 signaling is a viable target for adjunct therapy in various tumors to reduce immune evasion, primary tumor growth, and metastasis.
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21
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Influence of Trimethylamine N-Oxide on Platelet Activation. Nutrients 2022; 14:nu14163261. [PMID: 36014773 PMCID: PMC9413306 DOI: 10.3390/nu14163261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/30/2022] [Accepted: 08/02/2022] [Indexed: 12/13/2022] Open
Abstract
Microbiome-derived trimethylamine N-oxide (TMAO) has been associated with platelet hyperreactivity and subsequent atherogenesis. Whether physiological TMAO-levels influence platelet-derived lipid mediators remains unknown. Little is known about pre-analytic factors potentially influencing TMAO concentrations. We aimed at developing a quantitative LC-MS/MS method to investigate in-vivo and in-vitro pre-analytical factors in TMAO analysis to properly assess the proposed activating effect of TMAO on platelets. TMAO, betaine, carnitine, and choline were analyzed by HILIC-ESI-MS/MS within 6 min total run time. Method validation included investigation of reproducibility, recovery, sensitivity, and in-vitro pre-analytical factors. A 24-h monitoring experiment was performed, evaluating in-vivo pre-analytical factors like daytime or diet. Finally, the effects of different TMAO concentrations on platelet activation and corresponding alterations of platelet-derived eicosanoid release were analyzed. The method showed high reproducibility (CVs ≤ 5.3%), good recovery rates (96–98%), and negligible in-vitro pre-analytical effects. The influence of in-vivo pre-analytical factors on TMAO levels was not observable within the applied experimental conditions. We did not find any correlation between TMAO levels and platelet activation at physiological TMAO concentrations, whereas platelet-derived eicosanoids presented activation of the cyclooxygenase and lipoxygenase pathways. In contrast to previously published results, we did not find any indications regarding diet dependency or circadian rhythmicity of TMAO levels. Our results do not support the hypothesis that TMAO increases platelet responsiveness via the release of lipid-mediators.
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Tapp ZM, Cornelius S, Oberster A, Kumar JE, Atluri R, Witcher KG, Oliver B, Bray C, Velasquez J, Zhao F, Peng J, Sheridan J, Askwith C, Godbout JP, Kokiko-Cochran ON. Sleep fragmentation engages stress-responsive circuitry, enhances inflammation and compromises hippocampal function following traumatic brain injury. Exp Neurol 2022; 353:114058. [PMID: 35358498 PMCID: PMC9068267 DOI: 10.1016/j.expneurol.2022.114058] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 03/04/2022] [Accepted: 03/24/2022] [Indexed: 02/08/2023]
Abstract
Traumatic brain injury (TBI) impairs the ability to restore homeostasis in response to stress, indicating hypothalamic-pituitary-adrenal (HPA)-axis dysfunction. Many stressors result in sleep disturbances, thus mechanical sleep fragmentation (SF) provides a physiologically relevant approach to study the effects of stress after injury. We hypothesize SF stress engages the dysregulated HPA-axis after TBI to exacerbate post-injury neuroinflammation and compromise recovery. To test this, male and female mice were given moderate lateral fluid percussion TBI or sham-injury and left undisturbed or exposed to daily, transient SF for 7- or 30-days post-injury (DPI). Post-TBI SF increases cortical expression of interferon- and stress-associated genes characterized by inhibition of the upstream regulator NR3C1 that encodes glucocorticoid receptor (GR). Moreover, post-TBI SF increases neuronal activity in the hippocampus, a key intersection of the stress-immune axes. By 30 DPI, TBI SF enhances cortical microgliosis and increases expression of pro-inflammatory glial signaling genes characterized by persistent inhibition of the NR3C1 upstream regulator. Within the hippocampus, post-TBI SF exaggerates microgliosis and decreases CA1 neuronal activity. Downstream of the hippocampus, post-injury SF suppresses neuronal activity in the hypothalamic paraventricular nucleus indicating decreased HPA-axis reactivity. Direct application of GR agonist, dexamethasone, to the CA1 at 30 DPI increases GR activity in TBI animals, but not sham animals, indicating differential GR-mediated hippocampal action. Electrophysiological assessment revealed TBI and SF induces deficits in Schaffer collateral long-term potentiation associated with impaired acquisition of trace fear conditioning, reflecting dorsal hippocampal-dependent cognitive deficits. Together these data demonstrate that post-injury SF engages the dysfunctional post-injury HPA-axis, enhances inflammation, and compromises hippocampal function. Therefore, external stressors that disrupt sleep have an integral role in mediating outcome after brain injury.
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Affiliation(s)
- Zoe M Tapp
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA.
| | - Sydney Cornelius
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA.
| | - Alexa Oberster
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA
| | - Julia E Kumar
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA.
| | - Ravitej Atluri
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA.
| | - Kristina G Witcher
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA.
| | - Braedan Oliver
- Institute for Behavioral Medicine Research, Neurological Institute, The Ohio State University, 460 Medical Center Drive, Columbus, OH 43210, USA.
| | - Chelsea Bray
- Institute for Behavioral Medicine Research, Neurological Institute, The Ohio State University, 460 Medical Center Drive, Columbus, OH 43210, USA.
| | - John Velasquez
- Institute for Behavioral Medicine Research, Neurological Institute, The Ohio State University, 460 Medical Center Drive, Columbus, OH 43210, USA.
| | - Fangli Zhao
- Institute for Behavioral Medicine Research, Neurological Institute, The Ohio State University, 460 Medical Center Drive, Columbus, OH 43210, USA.
| | - Juan Peng
- Center for Biostatistics, The Ohio State University, 320-55 Lincoln Tower, 1800 Cannon Drive, Columbus, OH 43210, USA.
| | - John Sheridan
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA; Institute for Behavioral Medicine Research, Neurological Institute, The Ohio State University, 460 Medical Center Drive, Columbus, OH 43210, USA; Division of Biosciences, College of Dentistry, The Ohio State University, 305 W. 12(th) Ave, Columbus, OH 43210, USA.
| | - Candice Askwith
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA.
| | - Jonathan P Godbout
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA; Institute for Behavioral Medicine Research, Neurological Institute, The Ohio State University, 460 Medical Center Drive, Columbus, OH 43210, USA.
| | - Olga N Kokiko-Cochran
- Dept. of Neuroscience, College of Medicine, The Ohio State University, 1858 Neil Ave, Columbus, OH 43210, USA; Institute for Behavioral Medicine Research, Neurological Institute, The Ohio State University, 460 Medical Center Drive, Columbus, OH 43210, USA.
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张 晓, 张 晓, 刘 鹏, 刘 阔, 李 文, 陈 倩, 马 万. [Prognostic implications and functional enrichment analysis of LTB4R in patients with acute myeloid leukemia]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2022; 42:309-320. [PMID: 35426793 PMCID: PMC9010981 DOI: 10.12122/j.issn.1673-4254.2022.03.01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To explore the expression patterns, prognostic implications, and biological role of leukotriene B4 receptor (LTB4R) in patients with acute myeloid leukemia (AML). METHODS We collected the data of mRNA expression levels and clinical information of patients with AML from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) database for mRNA expression analyses, survival analyses, Cox regression analyses and correlation analyses using R studio to assess the expression patterns and prognostic value of LTB4R. The correlation of LTB4R expression levels with clinical characteristics of the patients were analyzed using UALCAN. The co-expressed genes LTB4R were screened from Linkedomics and subjected to functional enrichment analysis. A protein-protein interaction network was constructed using STRING. GSEA analyses of the differentially expressed genes (DEGs) were performed based on datasets from TCGA-LAML stratified by LTB4R expression level. We also collected peripheral blood mononuclear cells (PBMCs) from AML patients and healthy donors for examination of the mRNA expression levels of LTB4R and immune checkpoint genes using qRT-PCR. We also examined serum LTB4R protein levels in the patients using ELISA. RESULTS The mRNA expression level of LTB4R was significantly increased in AML patients (4.898±1.220 vs 2.252±0.215, P < 0.001), and an elevated LTB4R expression level was correlated with a poor overall survival (OS) of the patients (P=0.004, HR=1.74). LTB4R was identified as an independent prognostic factor for OS (P=0.019, HR=1.66) and was associated with FAB subtypes, cytogenetic risk, karyotype abnormalities and NPM1 mutations. The co- expressed genes of LTB4R were enriched in the functional pathways closely associated with AML leukemogenesis, including neutrophil inflammation, lymphocyte activation, signal transduction, and metabolism. The DEGs were enriched in differentiation, activation of immune cells, and cytokine signaling. Examination of the clinical serum samples also demonstrated significantly increased expressions of LTB4R mRNA (P=0.044) and protein (P=0.008) in AML patients, and LTB4R mRNA expression was positively correlated with the expression of the immune checkpoint HAVCR2 (r= 0.466, P=0.040). CONCLUSION LTB4R can serve as a novel biomarker and independent prognostic indicator of AML and its expression patterns provide insights into the crosstalk of leukemogenesis signaling pathways involving tumor immunity and metabolism.
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Affiliation(s)
- 晓宁 张
- 山东第一医科大学第一附属医院(山东省千佛山医院)检验医学//山东省医药卫生临床检验诊断学重点实验室,山东 济南 250014Department of Clinical Laboratory Medicine, First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan 250014, China
| | - 晓瑜 张
- 济南市第五人民医院肾内科,山东 济南 250022Department of Nephrology, Fifth People's Hospital of Jinan, Jinan 250022, China
| | - 鹏 刘
- 山东第一医科大学第一附属医院(山东省千佛山医院)检验医学//山东省医药卫生临床检验诊断学重点实验室,山东 济南 250014Department of Clinical Laboratory Medicine, First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan 250014, China
| | - 阔 刘
- 山东第一医科大学第一附属医院(山东省千佛山医院)检验医学//山东省医药卫生临床检验诊断学重点实验室,山东 济南 250014Department of Clinical Laboratory Medicine, First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan 250014, China
| | - 文文 李
- 山东第一医科大学第一附属医院(山东省千佛山医院)检验医学//山东省医药卫生临床检验诊断学重点实验室,山东 济南 250014Department of Clinical Laboratory Medicine, First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan 250014, China
| | - 倩倩 陈
- 山东第一医科大学第一附属医院(山东省千佛山医院)检验医学//山东省医药卫生临床检验诊断学重点实验室,山东 济南 250014Department of Clinical Laboratory Medicine, First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan 250014, China
| | - 万山 马
- 山东第一医科大学第一附属医院(山东省千佛山医院)检验医学//山东省医药卫生临床检验诊断学重点实验室,山东 济南 250014Department of Clinical Laboratory Medicine, First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine, Jinan 250014, China
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Wang N, He X, Zhao J, Jiang H, Cheng X, Xia Y, Eric Xu H, He Y. Structural basis of leukotriene B4 receptor 1 activation. Nat Commun 2022; 13:1156. [PMID: 35241677 PMCID: PMC8894450 DOI: 10.1038/s41467-022-28820-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 02/07/2022] [Indexed: 12/18/2022] Open
Abstract
Leukotriene B4 receptor 1 (BLT1) plays crucial roles in the acute inflammatory responses and is a valuable target for anti-inflammation treatment, however, the mechanism by which leukotriene B4 (LTB4) activates receptor remains unclear. Here, we report the cryo-electron microscopy (cryo-EM) structure of the LTB4 -bound human BLT1 in complex with a Gi protein in an active conformation at resolution of 2.91 Å. In combination of molecule dynamics (MD) simulation, docking and site-directed mutagenesis, our structure reveals that a hydrogen-bond network of water molecules and key polar residues is the key molecular determinant for LTB4 binding. We also find that the displacement of residues M1013.36 and I2717.39 to the center of receptor, which unlock the ion lock of the lower part of pocket, is the key mechanism of receptor activation. In addition, we reveal a binding site of phosphatidylinositol (PI) and discover that the widely open ligand binding pocket may contribute the lack of specificity and efficacy for current BLT1-targeting drug design. Taken together, our structural analysis provides a scaffold for understanding BLT1 activation and a rational basis for designing anti-leukotriene drugs. In the paper, Dr. Wang et al reported a cryo-EM structure of the human leukotriene B4 receptor 1 (BLT1) in complex with its native ligand leukotriene B4 (LTB4) in an active conformation complexed with Gi protein. The structure reveals the molecule determinant of LTB4 binding and the mechanism of receptor activation. These structural information will boost the understanding of LTB4-BLT1 signaling and provide a rational basis for designing novel anti-leukotriene drugs.
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Affiliation(s)
- Na Wang
- Laboratory of Receptor Structure and Signaling, The HIT Center for Life Sciences, Harbin Institute of Technology, Harbin, 150001, China
| | - Xinheng He
- The CAS Key Laboratory of Receptor Research and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Jing Zhao
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Hualiang Jiang
- The CAS Key Laboratory of Receptor Research and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Xi Cheng
- The CAS Key Laboratory of Receptor Research and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yu Xia
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - H Eric Xu
- The CAS Key Laboratory of Receptor Research and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yuanzheng He
- Laboratory of Receptor Structure and Signaling, The HIT Center for Life Sciences, Harbin Institute of Technology, Harbin, 150001, China.
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25
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Poto R, Cristinziano L, Modestino L, de Paulis A, Marone G, Loffredo S, Galdiero MR, Varricchi G. Neutrophil Extracellular Traps, Angiogenesis and Cancer. Biomedicines 2022; 10:biomedicines10020431. [PMID: 35203640 PMCID: PMC8962440 DOI: 10.3390/biomedicines10020431] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/07/2022] [Accepted: 02/09/2022] [Indexed: 12/07/2022] Open
Abstract
Human neutrophils, the most abundant circulating leukocytes, are fundamental components of the host response against different pathogens. Until a few years ago, neutrophils received limited attention in cancer immunology. Recently, it was discovered that both circulating, and tumor-associated, neutrophils possess functional plasticity when exposed to various inflammatory stimuli and in the tumor microenvironment. Neutrophils and their mediators can exert several pro-tumor activities in cancer and promote metastasis through different mechanisms. Angiogenesis plays a pivotal role in inflammation and tumor growth. Activated human neutrophils release several angiogenic factors [vascular endothelial growth factor-A (VEGF-A), angiopoietin-1 (ANGPT1), CXCL8, hepatocyte growth factor (HGF), and metalloproteinase 9 (MMP-9)] and form neutrophil extracellular traps (NETs). NETs promote tumor growth and metastasis formation through several mechanisms: they can awake dormant cancer cells, capture circulating tumor cells, coat and shield cancer cells, thus preventing CD8+- and natural killer (NK) cell-mediated cytotoxicity. ANGPTs released by endothelial and periendothelial mural cells induce platelet-activating factor (PAF) synthesis and neutrophil adhesion to endothelial cells. NETs can directly exert several proangiogenic activities in human endothelial cells and NETs induced by ANGPTs and PAF increase several aspects of angiogenesis in vitro and in vivo. A better understanding of the pathophysiological functions of NETs in cancer and angiogenesis could be of importance in the early diagnosis, prevention and treatment of tumors.
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Affiliation(s)
- Remo Poto
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (R.P.); (L.C.); (L.M.); (A.d.P.); (G.M.); (S.L.); (M.R.G.)
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131 Naples, Italy
| | - Leonardo Cristinziano
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (R.P.); (L.C.); (L.M.); (A.d.P.); (G.M.); (S.L.); (M.R.G.)
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131 Naples, Italy
| | - Luca Modestino
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (R.P.); (L.C.); (L.M.); (A.d.P.); (G.M.); (S.L.); (M.R.G.)
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131 Naples, Italy
| | - Amato de Paulis
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (R.P.); (L.C.); (L.M.); (A.d.P.); (G.M.); (S.L.); (M.R.G.)
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131 Naples, Italy
| | - Gianni Marone
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (R.P.); (L.C.); (L.M.); (A.d.P.); (G.M.); (S.L.); (M.R.G.)
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131 Naples, Italy
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131 Naples, Italy
| | - Stefania Loffredo
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (R.P.); (L.C.); (L.M.); (A.d.P.); (G.M.); (S.L.); (M.R.G.)
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131 Naples, Italy
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131 Naples, Italy
| | - Maria Rosaria Galdiero
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (R.P.); (L.C.); (L.M.); (A.d.P.); (G.M.); (S.L.); (M.R.G.)
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131 Naples, Italy
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131 Naples, Italy
| | - Gilda Varricchi
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (R.P.); (L.C.); (L.M.); (A.d.P.); (G.M.); (S.L.); (M.R.G.)
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131 Naples, Italy
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131 Naples, Italy
- Correspondence:
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da Silva PR, do Espírito Santo RF, Melo CDO, Pachú Cavalcante FE, Costa TB, Barbosa YV, e Silva YMSDM, de Sousa NF, Villarreal CF, de Moura RO, dos Santos VL. The Compound (E)-2-Cyano- N,3-diphenylacrylamide (JMPR-01): A Potential Drug for Treatment of Inflammatory Diseases. Pharmaceutics 2022; 14:188. [PMID: 35057082 PMCID: PMC8777680 DOI: 10.3390/pharmaceutics14010188] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/07/2022] [Accepted: 01/10/2022] [Indexed: 02/04/2023] Open
Abstract
The compound (E)-2-cyano-N,3-diphenylacrylamide (JMPR-01) was structurally developed using bioisosteric modifications of a hybrid prototype as formed from fragments of indomethacin and paracetamol. Initially, in vitro assays were performed to determine cell viability (in macrophage cultures), and its ability to modulate the synthesis of nitrite and cytokines (IL-1β and TNFα) in non-cytotoxic concentrations. In vivo, anti-inflammatory activity was explored using the CFA-induced paw edema and zymosan-induced peritonitis models. To investigate possible molecular targets, molecular docking was performed with the following crystallographic structures: LT-A4-H, PDE4B, COX-2, 5-LOX, and iNOS. As results, we observed a significant reduction in the production of nitrite and IL-1β at all concentrations used, and also for TNFα with JMPR-01 at 50 and 25 μM. The anti-edematogenic activity of JMPR-01 (100 mg/kg) was significant, reducing edema at 2-6 h, similar to the dexamethasone control. In induced peritonitis, JMPR-01 reduced leukocyte migration by 61.8, 68.5, and 90.5% at respective doses of 5, 10, and 50 mg/kg. In silico, JMPR-01 presented satisfactory coupling; mainly with LT-A4-H, PDE4B, and iNOS. These preliminary results demonstrate the strong potential of JMPR-01 to become a drug for the treatment of inflammatory diseases.
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Affiliation(s)
- Pablo Rayff da Silva
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (P.R.d.S.); camillamello-@hotmail.com (C.d.O.M.); (R.O.d.M.)
- Laboratório de Ensaios Farmacológicos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (F.E.P.C.); (T.B.C.); (Y.V.B.)
- Laboratório de Desenvolvimento e Síntese de Fármacos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil;
| | - Renan Fernandes do Espírito Santo
- Instituto Gonçalo Moniz, Fundação Osvaldo Cruz, Salvador 40296-710, BA, Brazil; (R.F.d.E.S.); (C.F.V.)
- Faculdade de Farmácia, Universidade Federal da Bahia, Salvador 40170-290, BA, Brazil
| | - Camila de Oliveira Melo
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (P.R.d.S.); camillamello-@hotmail.com (C.d.O.M.); (R.O.d.M.)
- Laboratório de Desenvolvimento e Síntese de Fármacos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil;
| | - Fábio Emanuel Pachú Cavalcante
- Laboratório de Ensaios Farmacológicos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (F.E.P.C.); (T.B.C.); (Y.V.B.)
| | - Thássia Borges Costa
- Laboratório de Ensaios Farmacológicos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (F.E.P.C.); (T.B.C.); (Y.V.B.)
| | - Yasmim Vilarim Barbosa
- Laboratório de Ensaios Farmacológicos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (F.E.P.C.); (T.B.C.); (Y.V.B.)
| | - Yvnni M. S. de Medeiros e Silva
- Laboratório de Desenvolvimento e Síntese de Fármacos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil;
| | - Natália Ferreira de Sousa
- Programa de Pós Graduação em Produtos Naturais, Sintéticos e Bioativos, Universidade Federal da Paraiba, João Pessoa 58051-900, PB, Brazil;
| | - Cristiane Flora Villarreal
- Instituto Gonçalo Moniz, Fundação Osvaldo Cruz, Salvador 40296-710, BA, Brazil; (R.F.d.E.S.); (C.F.V.)
- Faculdade de Farmácia, Universidade Federal da Bahia, Salvador 40170-290, BA, Brazil
| | - Ricardo Olímpio de Moura
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (P.R.d.S.); camillamello-@hotmail.com (C.d.O.M.); (R.O.d.M.)
- Laboratório de Desenvolvimento e Síntese de Fármacos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil;
| | - Vanda Lucia dos Santos
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (P.R.d.S.); camillamello-@hotmail.com (C.d.O.M.); (R.O.d.M.)
- Laboratório de Ensaios Farmacológicos, Departamento de Farmácia, Universidade Estadual da Paraíba, Campina Grande 58429-500, PB, Brazil; (F.E.P.C.); (T.B.C.); (Y.V.B.)
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Al-Shaer AE, Pal A, Shaikh SR. Resolvin E1-ChemR23 Axis Regulates the Hepatic Metabolic and Inflammatory Transcriptional Landscape in Obesity at the Whole Genome and Exon Level. Front Nutr 2022; 8:799492. [PMID: 35004828 PMCID: PMC8740313 DOI: 10.3389/fnut.2021.799492] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/07/2021] [Indexed: 12/20/2022] Open
Abstract
Resolvin E1 (RvE1) is an immunoresolvent that is synthesized from eicosapentaenoic acid and can bind the receptor ERV1/ChemR23. We previously showed activation of the RvE1-ChemR23 axis improves hyperglycemia and hyperinsulinemia of obese mice; however, it remains unclear how RvE1 controls glucose homeostasis. Here we investigated hepatic metabolic and inflammatory transcriptional targets of the RvE1-ChemR23 axis using lean and obese wild type (WT) and ChemR23 knockout (KO) mice. We conducted an in-depth transcriptional study by preforming whole gene-level and exon-level analyses, which provide insight into alternative splicing variants and miRNA regulation. Compared to controls, WT and KO obese mice in the absence of RvE1 displayed similar gene-level profiles, which entailed dysregulated pathways related to glucose homeostasis. Notably, obese WT mice relative to lean controls showed a robust decrease in pathways related to the biosynthesis of unsaturated fatty acids. At the exon-level, obese ChemR23 KOs compared to obese WT mice displayed changes in pathways related to hepatic lipid transport, cholesterol metabolism, and immunological functions such as complement cascades and platelet activation. Importantly, upon RvE1 administration to WT obese mice, we discovered upregulated genes in pathways relating to insulin sensitivity and downregulated genes related to regulators of TGF-β signaling. This transcriptional profile was generally not recapitulated with obese ChemR23 KO mice administered RvE1. Collectively, gene and exon-level analyses suggest RvE1 controls the hepatic transcriptional profile related to glucose homeostasis, insulin sensitivity, and inflammation in a manner that is largely dependent on ChemR23. These studies will drive future mechanistic experiments on the RvE1-ChemR23 axis.
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Affiliation(s)
- Abrar E Al-Shaer
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Anandita Pal
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Saame Raza Shaikh
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
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Lin Y, Cai Q, Chen Y, Shi T, Liu W, Mao L, Deng B, Ying Z, Gao Y, Luo H, Yang X, Huang X, Shi Y, He R. CAFs shape myeloid-derived suppressor cells to promote stemness of intrahepatic cholangiocarcinoma through 5-lipoxygenase. Hepatology 2022; 75:28-42. [PMID: 34387870 DOI: 10.1002/hep.32099] [Citation(s) in RCA: 84] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 07/16/2021] [Accepted: 08/02/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND AND AIMS We previously demonstrated that cancer-associated fibroblasts (CAFs) promote tumor growth through recruitment of myeloid-derived suppressor cells (MDSCs). 5-lipoxygenase (5-LO) is highly expressed in myeloid cells and is critical for synthesizing leukotriene B4 (LTB4), which is involved in tumor progression by activating its receptor leukotriene B4 receptor type 2 (BLT2). In this study, we investigated whether and how CAFs regulate MDSC function to enhance cancer stemness, the driving force of the cancer aggressiveness and chemotherapy refractoriness, in highly desmoplastic intrahepatic cholangiocarcinoma (ICC). APPROACH AND RESULTS RNA-sequencing analysis revealed enriched metabolic pathways but decreased inflammatory pathways in cancer MDSCs compared with blood MDSCs from patients with ICC. Co-injection of ICC patient-derived CAFs promoted cancer stemness in an orthotopic ICC model, which was blunted by MDSC depletion. Conditioned media (CM) from CAF-educated MDSCs drastically promoted tumorsphere formation efficiency and stemness marker gene expression in ICC cells. CAF-CM stimulation increased expression and activity of 5-LO in MDSCs, while 5-LO inhibitor impaired the stemness-enhancing capacity of MDSCs in vitro and in vivo. Furthermore, IL-6 and IL-33 primarily expressed by CAFs mediated hyperactivated 5-LO metabolism in MDSCs. We identified the LTB4-BLT2 axis as the critical downstream metabolite signaling of 5-LO in promoting cancer stemness, as treatment with LTB4 was elevated in CAF-educated MDSCs, or blockade of BLT2 (which was preferentially expressed in stem-like ICC cells) significantly reduced stemness-enhancing effects of CAF-educated MDSCs. Finally, BLT2 blockade augmented chemotherapeutic efficacy in ICC patient-derived xenograft models. CONCLUSIONS Our study reveals a role for CAFs in orchestrating the optimal cancer stemness-enhancing microenvironment by educating MDSCs, and suggests the 5-LO/LTB4-BLT2 axis as promising therapeutic targets for ICC chemoresistance by targeting cancer stemness.
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Affiliation(s)
- Yuli Lin
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Qian Cai
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Yu Chen
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Tiancong Shi
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Weiren Liu
- Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Shanghai, China
| | - Li Mao
- Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Shanghai, China
| | - Bo Deng
- Division of Nephrology, School of Medicine, Shanghai Ninth People's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Zhen Ying
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Yuan Gao
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Haoyang Luo
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Xuguang Yang
- Department of Oncology, Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiaowu Huang
- Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Shanghai, China
| | - Yinghong Shi
- Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Shanghai, China
| | - Rui He
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China.,National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China
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29
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Novel Immunomodulatory Therapies for Respiratory Pathologies. COMPREHENSIVE PHARMACOLOGY 2022. [PMCID: PMC8238403 DOI: 10.1016/b978-0-12-820472-6.00073-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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30
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Park D, Ro M, Lee AJ, Kwak DW, Chung Y, Kim JH. Contributory Role of BLT2 in the Production of Proinflammatory Cytokines in Cecal Ligation and Puncture-Induced Sepsis. Mol Cells 2021; 44:893-899. [PMID: 34887363 PMCID: PMC8718367 DOI: 10.14348/molcells.2021.0159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 10/03/2021] [Accepted: 10/15/2021] [Indexed: 11/27/2022] Open
Abstract
BLT2 is a low-affinity receptor for leukotriene B4, a potent lipid mediator of inflammation generated from arachidonic acid via the 5-lipoxygenase pathway. The aim of this study was to investigate whether BLT2 plays any role in sepsis, a systemic inflammatory response syndrome caused by infection. A murine model of cecal ligation and puncture (CLP)-induced sepsis was used to evaluate the role of BLT2 in septic inflammation. In the present study, we observed that the levels of ligands for BLT2 (LTB4 [leukotriene B4] and 12(S)-HETE [12(S)-hydroxyeicosatetraenoic acid]) were significantly increased in the peritoneal lavage fluid and serum from mice with CLP-induced sepsis. We also observed that the levels of BLT2 as well as 5-LO and 12-LO, which are synthesizing enzymes for LTB4 and 12(S)-HETE, were significantly increased in lung and liver tissues in the CLP mouse model. Blockade of BLT2 markedly suppressed the production of sepsis-associated cytokines (IL-6 [interleukin-6], TNF-α [tumor necrosis factor alpha], and IL-1β [interleukin-1β] as well as IL-17 [interleukin-17]) and alleviated lung inflammation in the CLP group. Taken together, our results suggest that BLT2 cascade contributes to lung inflammation in CLP-induced sepsis by mediating the production of inflammatory cytokines. These findings suggest that BLT2 may be a potential therapeutic target for sepsis patients.
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Affiliation(s)
- Donghwan Park
- Department of Biotechnology, College of Life Sciences, Korea University, Seoul 02841, Korea
| | - MyungJa Ro
- Department of Biotechnology, College of Life Sciences, Korea University, Seoul 02841, Korea
| | - A-Jin Lee
- Department of Biotechnology, College of Life Sciences, Korea University, Seoul 02841, Korea
| | - Dong-Wook Kwak
- Department of Biotechnology, College of Life Sciences, Korea University, Seoul 02841, Korea
| | - Yunro Chung
- College of Health Solutions, Arizona State University, Phoenix, AZ 85004, USA
- Biodesign Center for Personalized Diagnostics, Arizona State University, Tempe, AZ 85281, USA
| | - Jae-Hong Kim
- Division of Life Sciences, College of Life Sciences, Korea University, Seoul 02841, Korea
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31
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Strassheim D, Sullivan T, Irwin DC, Gerasimovskaya E, Lahm T, Klemm DJ, Dempsey EC, Stenmark KR, Karoor V. Metabolite G-Protein Coupled Receptors in Cardio-Metabolic Diseases. Cells 2021; 10:3347. [PMID: 34943862 PMCID: PMC8699532 DOI: 10.3390/cells10123347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/10/2021] [Accepted: 11/18/2021] [Indexed: 12/15/2022] Open
Abstract
G protein-coupled receptors (GPCRs) have originally been described as a family of receptors activated by hormones, neurotransmitters, and other mediators. However, in recent years GPCRs have shown to bind endogenous metabolites, which serve functions other than as signaling mediators. These receptors respond to fatty acids, mono- and disaccharides, amino acids, or various intermediates and products of metabolism, including ketone bodies, lactate, succinate, or bile acids. Given that many of these metabolic processes are dysregulated under pathological conditions, including diabetes, dyslipidemia, and obesity, receptors of endogenous metabolites have also been recognized as potential drug targets to prevent and/or treat metabolic and cardiovascular diseases. This review describes G protein-coupled receptors activated by endogenous metabolites and summarizes their physiological, pathophysiological, and potential pharmacological roles.
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Affiliation(s)
- Derek Strassheim
- Department of Medicine Cardiovascular and Pulmonary Research Laboratory, University of Colorado Denver, Denver, CO 80204, USA; (D.S.); (T.S.); (D.C.I.); (E.G.); (D.J.K.); (E.C.D.); (K.R.S.)
| | - Timothy Sullivan
- Department of Medicine Cardiovascular and Pulmonary Research Laboratory, University of Colorado Denver, Denver, CO 80204, USA; (D.S.); (T.S.); (D.C.I.); (E.G.); (D.J.K.); (E.C.D.); (K.R.S.)
| | - David C. Irwin
- Department of Medicine Cardiovascular and Pulmonary Research Laboratory, University of Colorado Denver, Denver, CO 80204, USA; (D.S.); (T.S.); (D.C.I.); (E.G.); (D.J.K.); (E.C.D.); (K.R.S.)
| | - Evgenia Gerasimovskaya
- Department of Medicine Cardiovascular and Pulmonary Research Laboratory, University of Colorado Denver, Denver, CO 80204, USA; (D.S.); (T.S.); (D.C.I.); (E.G.); (D.J.K.); (E.C.D.); (K.R.S.)
| | - Tim Lahm
- Division of Pulmonary, Critical Care and Sleep Medicine, National Jewish Health Denver, Denver, CO 80206, USA;
- Rocky Mountain Regional VA Medical Center, Aurora, CO 80045, USA
| | - Dwight J. Klemm
- Department of Medicine Cardiovascular and Pulmonary Research Laboratory, University of Colorado Denver, Denver, CO 80204, USA; (D.S.); (T.S.); (D.C.I.); (E.G.); (D.J.K.); (E.C.D.); (K.R.S.)
- Rocky Mountain Regional VA Medical Center, Aurora, CO 80045, USA
- Division of Pulmonary Sciences and Critical Care Medicine, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Edward C. Dempsey
- Department of Medicine Cardiovascular and Pulmonary Research Laboratory, University of Colorado Denver, Denver, CO 80204, USA; (D.S.); (T.S.); (D.C.I.); (E.G.); (D.J.K.); (E.C.D.); (K.R.S.)
- Rocky Mountain Regional VA Medical Center, Aurora, CO 80045, USA
- Division of Pulmonary Sciences and Critical Care Medicine, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Kurt R. Stenmark
- Department of Medicine Cardiovascular and Pulmonary Research Laboratory, University of Colorado Denver, Denver, CO 80204, USA; (D.S.); (T.S.); (D.C.I.); (E.G.); (D.J.K.); (E.C.D.); (K.R.S.)
| | - Vijaya Karoor
- Department of Medicine Cardiovascular and Pulmonary Research Laboratory, University of Colorado Denver, Denver, CO 80204, USA; (D.S.); (T.S.); (D.C.I.); (E.G.); (D.J.K.); (E.C.D.); (K.R.S.)
- Division of Pulmonary, Critical Care and Sleep Medicine, National Jewish Health Denver, Denver, CO 80206, USA;
- Division of Pulmonary Sciences and Critical Care Medicine, School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA
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32
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Gong M, Duan H, Wu F, Ren Y, Gong J, Xu L, Lu F, Wang D. Berberine Alleviates Insulin Resistance and Inflammation via Inhibiting the LTB4-BLT1 Axis. Front Pharmacol 2021; 12:722360. [PMID: 34803675 PMCID: PMC8599302 DOI: 10.3389/fphar.2021.722360] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 10/18/2021] [Indexed: 11/14/2022] Open
Abstract
Background: Chronic low-grade inflammation is recognized as a key pathophysiological mechanism of insulin resistance. Leukotriene B4 (LTB4), a molecule derived from arachidonic acid, is a potent neutrophil chemoattractant. The excessive amount of LTB4 that is combined with its receptor BLT1 can cause chronic low-grade inflammation, aggravating insulin resistance. Berberine (BBR) has been shown to relieve insulin resistance due to its anti-inflammatory properties. However, it is not clear whether BBR could have any effects on the LTB4–BLT1 axis. Methods: Using LTB4 to induce Raw264.7 and HepG2 cells, we investigated the effect of BBR on the LTB4–BLT1 axis in the progression of inflammation and insulin resistance. Results: Upon exposure to LTB4, intracellular insulin resistance and inflammation increased in HepG2 cells, and chemotaxis and inflammation response increased in RAW264.7 cells. Interestingly, pretreatment with BBR partially blocked these changes. Our preliminary data show that BBR might act on BLT1, modulating the LTB4–BLT1 axis to alleviate insulin resistance and inflammation. Conclusions: Our study demonstrated that BBR treatment could reduce intracellular insulin resistance and inflammation of hepatic cells, as well as chemotaxis of macrophages induced by LTB4. BBR might interact with BLT1 and alter the LTB4–BLT1 signaling pathway. This mechanism might be a novel anti-inflammatory and anti-diabetic function of BBR.
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Affiliation(s)
- Minmin Gong
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huiyan Duan
- Grade 2019 of Clinical Medicine, Medical College of China Three Gorges University, Hubei Yichang, China
| | - Fan Wu
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanlin Ren
- Department of Traditional Chinese Medicine, ZhongShan Hospital of Hubei Province, Wuhan, China
| | - Jing Gong
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lijun Xu
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fuer Lu
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dingkun Wang
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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33
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You J, Fu Z, Zou L. Mechanism and Potential of Extracellular Vesicles Derived From Mesenchymal Stem Cells for the Treatment of Infectious Diseases. Front Microbiol 2021; 12:761338. [PMID: 34764947 PMCID: PMC8576143 DOI: 10.3389/fmicb.2021.761338] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 09/24/2021] [Indexed: 12/12/2022] Open
Abstract
Extracellular vesicles (EVs) are nano-sized membrane vesicles secreted by cells. EVs serve as a mediator for cell-to-cell communication by regulating the exchange of genetic materials and proteins between the donor and surrounding cells. Current studies have explored the therapeutic value of mesenchymal stem cells-derived EVs (MSC-EVs) for the treatment of infectious diseases extensively. MSC-EVs can eliminate the pathogen, regulate immunity, and repair tissue injury in contagious diseases through the secretion of antimicrobial factors, inhibiting the replication of pathogens and activating the phagocytic function of macrophages. MSC-EVs can also repair tissue damage associated with the infection by upregulating the levels of anti-inflammatory factors, downregulating the pro-inflammatory factors, and participating in the regulation of cellular biological behaviors. The purpose of this mini-review is to discuss in detail the various mechanisms of MSC-EV treatment for infectious diseases including respiratory infections, sepsis, and intestinal infections, as well as challenges for implementing MSC-EVs from bench to bedside.
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Affiliation(s)
- Jingyi You
- Department of Respiratory Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing, China
| | - Zhou Fu
- Department of Respiratory Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing, China
| | - Lin Zou
- Chongqing Key Laboratory of Pediatrics, Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing, China.,Clinical Research Unit, Children's Hospital of Shanghai Jiao Tong University, Shanghai, China.,Institute of Pediatric Infection, Immunity, and Critical Care Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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34
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Abstract
Compared to the major histocompatibility complex (MHC) of typical mammals, the chicken BF/BL region is small and simple, with most of the genes playing central roles in the adaptive immune response. However, some genes of the chicken MHC are almost certainly involved in innate immunity, such as the complement component C4 and the lectin-like receptor/ligand gene pair BNK and Blec. The poorly expressed classical class I molecule BF1 is known to be recognised by natural killer (NK) cells and, analogous to mammalian immune responses, the classical class I molecules BF1 and BF2, the CD1 homologs and the butyrophilin homologs called BG may be recognised by adaptive immune lymphocytes with semi-invariant receptors in a so-called adaptate manner. Moreover, the TRIM and BG regions next to the chicken MHC, along with the genetically unlinked Y and olfactory/scavenger receptor regions on the same chromosome, have multigene families almost certainly involved in innate and adaptate responses. On this chicken microchromosome, the simplicity of the adaptive immune gene systems contrasts with the complexity of the gene systems potentially involved in innate immunity.
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35
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Chávez-Castillo M, Ortega Á, Cudris-Torres L, Duran P, Rojas M, Manzano A, Garrido B, Salazar J, Silva A, Rojas-Gomez DM, De Sanctis JB, Bermúdez V. Specialized Pro-Resolving Lipid Mediators: The Future of Chronic Pain Therapy? Int J Mol Sci 2021; 22:ijms221910370. [PMID: 34638711 PMCID: PMC8509014 DOI: 10.3390/ijms221910370] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/21/2021] [Accepted: 09/23/2021] [Indexed: 12/15/2022] Open
Abstract
Chronic pain (CP) is a severe clinical entity with devastating physical and emotional consequences for patients, which can occur in a myriad of diseases. Often, conventional treatment approaches appear to be insufficient for its management. Moreover, considering the adverse effects of traditional analgesic treatments, specialized pro-resolving lipid mediators (SPMs) have emerged as a promising alternative for CP. These include various bioactive molecules such as resolvins, maresins, and protectins, derived from ω-3 polyunsaturated fatty acids (PUFAs); and lipoxins, produced from ω-6 PUFAs. Indeed, SPMs have been demonstrated to play a central role in the regulation and resolution of the inflammation associated with CP. Furthermore, these molecules can modulate neuroinflammation and thus inhibit central and peripheral sensitizations, as well as long-term potentiation, via immunomodulation and regulation of nociceptor activity and neuronal pathways. In this context, preclinical and clinical studies have evidenced that the use of SPMs is beneficial in CP-related disorders, including rheumatic diseases, migraine, neuropathies, and others. This review integrates current preclinical and clinical knowledge on the role of SPMs as a potential therapeutic tool for the management of patients with CP.
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Affiliation(s)
- Mervin Chávez-Castillo
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo 4004, Venezuela; (M.C.-C.); (Á.O.); (P.D.); (M.R.); (A.M.); (B.G.); (J.S.); (A.S.)
| | - Ángel Ortega
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo 4004, Venezuela; (M.C.-C.); (Á.O.); (P.D.); (M.R.); (A.M.); (B.G.); (J.S.); (A.S.)
| | - Lorena Cudris-Torres
- Programa de Psicología, Fundación Universitaria del Área Andina sede Valledupar, Valledupar 200001, Colombia;
| | - Pablo Duran
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo 4004, Venezuela; (M.C.-C.); (Á.O.); (P.D.); (M.R.); (A.M.); (B.G.); (J.S.); (A.S.)
| | - Milagros Rojas
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo 4004, Venezuela; (M.C.-C.); (Á.O.); (P.D.); (M.R.); (A.M.); (B.G.); (J.S.); (A.S.)
| | - Alexander Manzano
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo 4004, Venezuela; (M.C.-C.); (Á.O.); (P.D.); (M.R.); (A.M.); (B.G.); (J.S.); (A.S.)
| | - Bermary Garrido
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo 4004, Venezuela; (M.C.-C.); (Á.O.); (P.D.); (M.R.); (A.M.); (B.G.); (J.S.); (A.S.)
| | - Juan Salazar
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo 4004, Venezuela; (M.C.-C.); (Á.O.); (P.D.); (M.R.); (A.M.); (B.G.); (J.S.); (A.S.)
| | - Aljadis Silva
- Endocrine and Metabolic Diseases Research Center, School of Medicine, University of Zulia, Maracaibo 4004, Venezuela; (M.C.-C.); (Á.O.); (P.D.); (M.R.); (A.M.); (B.G.); (J.S.); (A.S.)
| | - Diana Marcela Rojas-Gomez
- Escuela de Nutrición y Dietética, Facultad de Medicina, Universidad Andres Bello, Santiago 8370035, Chile;
| | - Juan B. De Sanctis
- Institute of Molecular and Translational Medicine, Palacký University Olomouc, 77900 Olomouc, Czech Republic;
| | - Valmore Bermúdez
- Facultad de Ciencias de la Salud, Universidad Simón Bolívar, Barranquilla 080002, Colombia
- Correspondence:
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36
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Rosa W, da Silva Domingos O, de Oliveira Salem PP, Caldas IS, Murgu M, Lago JHG, Sartorelli P, Dias DF, Chagas-Paula DA, Soares MG. In vivo anti-inflammatory activity of Fabaceae species extracts screened by a new ex vivo assay using human whole blood. PHYTOCHEMICAL ANALYSIS : PCA 2021; 32:859-883. [PMID: 33594803 DOI: 10.1002/pca.3031] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 12/01/2020] [Accepted: 01/13/2021] [Indexed: 06/12/2023]
Abstract
INTRODUCTION Plants have been considered a promising source for discovering new compounds with pharmacological activities. The Fabaceae family comprises a large variety of species that produce substances with diverse therapeutic potential, including anti-inflammatory activity. The limitations of current anti-inflammatories generate the need to research new anti-inflammatory structures with higher efficacy as well as develop methods for screening multiple samples, reliably and ethically, to assess such therapeutic properties. OBJECTIVE Validate and apply a quantification method for prostaglandin E2 (PGE2 ) production from an ex vivo assay in human blood in order to screen anti-inflammatory activity present in many Fabaceae species extracts. METHODS Human blood was incubated with extracts from 47 Fabaceae species. After lipopolysaccharide (LPS)-induced inflammation, PGE2 was quantified in the plasma by liquid chromatography with tandem mass spectrometry (LC-MS/MS). The extracts that presented PGE2 production inhibition were further assessed through in vivo assay and then chemically characterised through an analysis of ultra-performance liquid chromatography electrospray ionisation quadrupole time-of-flight tandem mass spectrometry (UPLC-ESI-QTOF-MS2 ) data. RESULTS The new ex vivo anti-inflammatory assay showed that five out of the 47 Fabaceae species inhibited PGE2 production. Results from an in vivo assay and the metabolic profile of the active extracts supported the anti-inflammatory potential of four species. CONCLUSION The quantification method for PGE2 demonstrated fast, sensitive, precise, and accurate results. The new ex vivo anti-inflammatory assay comprised a great, reliable, and ethical approach for the screening of a large number of samples before an in vivo bioassay. Additionally, the four active extracts in both ex vivo and in vivo assays may be useful for the development of more efficient anti-inflammatory drugs.
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Affiliation(s)
- Welton Rosa
- Institute of Chemistry - Federal University of Alfenas - Unifal-MG, Alfenas, MG, Brazil
| | | | | | - Ivo Santana Caldas
- Department of Pathology and Parasitology, Federal University of Alfenas - Unifal-MG, Alfenas, MG, Brazil
| | - Michael Murgu
- Waters Corporation, Alphaville, São Paulo, SP, Brazil
| | | | - Patricia Sartorelli
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo - UNIFESP, São Paulo, SP, Brazil
| | | | | | - Marisi Gomes Soares
- Institute of Chemistry - Federal University of Alfenas - Unifal-MG, Alfenas, MG, Brazil
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37
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Cao DY, Giani JF, Veiras LC, Bernstein EA, Okwan-Duodu D, Ahmed F, Bresee C, Tourtellotte WG, Karumanchi SA, Bernstein KE, Khan Z. An ACE inhibitor reduces bactericidal activity of human neutrophils in vitro and impairs mouse neutrophil activity in vivo. Sci Transl Med 2021; 13:13/604/eabj2138. [PMID: 34321319 PMCID: PMC10370421 DOI: 10.1126/scitranslmed.abj2138] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 06/22/2021] [Indexed: 12/14/2022]
Abstract
Angiotensin-converting enzyme inhibitors (ACEIs) are used by millions of patients to treat hypertension, diabetic kidney disease, and heart failure. However, these patients are often at increased risk of infection. To evaluate the impact of ACEIs on immune responses to infection, we compared the effect of an ACEI versus an angiotensin receptor blocker (ARB) on neutrophil antibacterial activity. ACEI exposure reduced the ability of murine neutrophils to kill methicillin-resistant Staphylococcus aureus (MRSA), Pseudomonas aeruginosa, and Klebsiella pneumoniae in vitro. In vivo, ACEI-treated mice infected with MRSA had increased bacteremia and tissue bacteria counts compared to mice treated with an ARB or with no drug. Similarly, ACEIs, but not ARBs, increased the incidence of MRSA-induced infective endocarditis in mice with aortic valve injury. Neutrophils from ACE knockout (KO) mice or mice treated with an ACEI produced less leukotriene B4 (LTB4) upon stimulation with MRSA or lipopolysaccharide, whereas neutrophils overexpressing ACE produced more LTB4 compared to wild-type neutrophils. As a result of reduced LTB4 production, ACE KO neutrophils showed decreased survival signaling and increased apoptosis. In contrast, neutrophils overexpressing ACE had an enhanced survival phenotype. Last, in a cohort of human volunteers receiving the ACEI ramipril for 1 week, ACEI administration reduced neutrophil superoxide and reactive oxygen species production and neutrophils isolated from volunteers during ramipril treatment had reduced bactericidal activity. Together, these data demonstrate that ACEI treatment, but not ARB treatment, can reduce the bacterial killing ability of neutrophils.
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Affiliation(s)
- Duo-Yao Cao
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA 90048, USA
| | - Jorge F Giani
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA 90048, USA.,Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA 90048, USA
| | - Luciana C Veiras
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA 90048, USA
| | - Ellen A Bernstein
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA 90048, USA
| | - Derick Okwan-Duodu
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA 90048, USA.,Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA 90048, USA
| | - Faizan Ahmed
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA 90048, USA
| | - Catherine Bresee
- Biostatistics and Bioinformatics Core, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA 90048, USA
| | - Warren G Tourtellotte
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA 90048, USA.,Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA 90048, USA.,Department of Neurology, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA 90048, USA
| | - S Ananth Karumanchi
- Department of Medicine, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA 90048, USA
| | - Kenneth E Bernstein
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA 90048, USA.,Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA 90048, USA
| | - Zakir Khan
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA 90048, USA. .,Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA 90048, USA
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38
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Sharma A, Chakraborty A, Jaganathan BG. Review of the potential of mesenchymal stem cells for the treatment of infectious diseases. World J Stem Cells 2021; 13:568-593. [PMID: 34249228 PMCID: PMC8246252 DOI: 10.4252/wjsc.v13.i6.568] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/07/2021] [Accepted: 06/03/2021] [Indexed: 02/06/2023] Open
Abstract
The therapeutic value of mesenchymal stem cells (MSCs) for the treatment of infectious diseases and the repair of disease-induced tissue damage has been explored extensively. MSCs inhibit inflammation, reduce pathogen load and tissue damage encountered during infectious diseases through the secretion of antimicrobial factors for pathogen clearance and they phagocytose certain bacteria themselves. MSCs dampen tissue damage during infection by downregulating the levels of pro-inflammatory cytokines, and inhibiting the excessive recruitment of neutrophils and proliferation of T cells at the site of injury. MSCs aid in the regeneration of damaged tissue by differentiating into the damaged cell types or by releasing paracrine factors that direct tissue regeneration, differentiation, and wound healing. In this review, we discuss in detail the various mechanisms by which MSCs help combat pathogens, tissue damage associated with infectious diseases, and challenges in utilizing MSCs for therapy.
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Affiliation(s)
- Amit Sharma
- Stem Cell and Cancer Biology Group, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Anuja Chakraborty
- Stem Cell and Cancer Biology Group, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Bithiah Grace Jaganathan
- Stem Cell and Cancer Biology Group, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
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39
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Biringer RG. A review of non-prostanoid, eicosanoid receptors: expression, characterization, regulation, and mechanism of action. J Cell Commun Signal 2021; 16:5-46. [PMID: 34173964 DOI: 10.1007/s12079-021-00630-6] [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: 05/21/2021] [Accepted: 06/07/2021] [Indexed: 11/29/2022] Open
Abstract
Eicosanoid signaling controls a wide range of biological processes from blood pressure homeostasis to inflammation and resolution thereof to the perception of pain and to cell survival itself. Disruption of normal eicosanoid signaling is implicated in numerous disease states. Eicosanoid signaling is facilitated by G-protein-coupled, eicosanoid-specific receptors and the array of associated G-proteins. This review focuses on the expression, characterization, regulation, and mechanism of action of non-prostanoid, eicosanoid receptors.
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Affiliation(s)
- Roger G Biringer
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, 5000 Lakewood Ranch Blvd, Bradenton, FL, 34211, USA.
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40
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Hara T, Saeki K, Jinnouchi H, Kazuno S, Miura Y, Yokomizo T. The c-terminal region of BLT2 restricts its localization to the lateral membrane in a LIN7C-dependent manner. FASEB J 2021; 35:e21364. [PMID: 33481310 DOI: 10.1096/fj.202002640r] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 12/26/2020] [Accepted: 12/28/2020] [Indexed: 11/11/2022]
Abstract
Leukotriene B4 receptor type 2 (BLT2) is a G protein-coupled receptor (GPCR) mainly expressed in epithelial cells, where it enhances barrier function. A unique characteristic of BLT2 is its restricted localization to the lateral membrane. However, the molecular mechanism underlying the localization of BLT2 to the lateral membrane and the physiological roles of laterally localized BLT2 are unknown. BLT1 is the most homologous GPCR to BLT2 and localizes to both the apical and lateral membranes. In this study, we generated chimeric receptors of BLT2 and BLT1 as well as deletion mutants of BLT2 to determine the region(s) of BLT2 responsible for its localization. Chimeric receptors containing the C-terminal domain of BLT2 localized only to the lateral membrane, and the C-terminal deletion mutant of BLT2 accumulated at the Golgi apparatus. Furthermore, the middle and C-terminal regions of BLT2 were important for maintaining epithelial barrier function. Proteomics analysis using the chimeric BLT-ascorbate peroxidase 2 biotinylation method showed that some proteins involved in intracellular protein transport, cell-cell junctions, and actin filament binding were located very close to the C-terminal domain of BLT2. Knockdown of lin-7 homolog C (LIN7C), a membrane trafficking protein, led to accumulation of BLT2 in the Golgi apparatus, resulting in diminished epithelial barrier function. These results suggest that the C-terminal region of BLT2 plays an important role in the transport of BLT2 from the Golgi apparatus to the plasma membrane in a LIN7C-dependent manner.
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Affiliation(s)
- Takuya Hara
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan.,Fuji Research Laboratories, Kowa Co., Ltd, Shizuoka, Japan
| | - Kazuko Saeki
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan
| | - Hiromi Jinnouchi
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan
| | - Saiko Kazuno
- Laboratory of Proteomics and Biomolecular Science, Research Support Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yoshiki Miura
- Laboratory of Proteomics and Biomolecular Science, Research Support Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Takehiko Yokomizo
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan
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41
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Targeting hepatocyte growth factor in epithelial-stromal interactions in an in vitro experimental model of human periodontitis. Odontology 2021; 109:912-920. [PMID: 34128105 PMCID: PMC8387255 DOI: 10.1007/s10266-021-00625-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 06/07/2021] [Indexed: 11/18/2022]
Abstract
Periodontitis is a chronic inflammatory disease leading to progressive connective tissue degradation and loss of the tooth-supporting bone. Clinical and experimental studies suggest that hepatocyte growth factor (HGF) is involved in the dysregulated fibroblast–epithelial cell interactions in periodontitis. The aim of this study was to explore effects of HGF to impact fibroblast-induced collagen degradation. A patient-derived experimental cell culture model of periodontitis was applied. Primary human epithelial cells and fibroblasts isolated from periodontitis-affected gingiva were co-cultured in a three-dimensional collagen gel. The effects of HGF neutralizing antibody on collagen gel degradation were tested and transcriptome analyses were performed. HGF neutralizing antibody attenuated collagen degradation and elicited expression changes of genes related to extracellular matrix (ECM) and cell adhesion, indicating that HGF signaling inhibition leads to extensive impact on cell–cell and cell–ECM interactions. Our study highlights a potential role of HGF in periodontitis. Antagonizing HGF signaling by a neutralizing antibody may represent a novel approach for periodontitis treatment.
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42
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Koga T, Sasaki F, Saeki K, Tsuchiya S, Okuno T, Ohba M, Ichiki T, Iwamoto S, Uzawa H, Kitajima K, Meno C, Nakamura E, Tada N, Fukui Y, Kikuta J, Ishii M, Sugimoto Y, Nakao M, Yokomizo T. Expression of leukotriene B 4 receptor 1 defines functionally distinct DCs that control allergic skin inflammation. Cell Mol Immunol 2021; 18:1437-1449. [PMID: 33037399 PMCID: PMC8167169 DOI: 10.1038/s41423-020-00559-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 11/25/2022] Open
Abstract
Leukotriene B4 (LTB4) receptor 1 (BLT1) is a chemotactic G protein-coupled receptor expressed by leukocytes, such as granulocytes, macrophages, and activated T cells. Although there is growing evidence that BLT1 plays crucial roles in immune responses, its role in dendritic cells remains largely unknown. Here, we identified novel DC subsets defined by the expression of BLT1, namely, BLT1hi and BLT1lo DCs. We also found that BLT1hi and BLT1lo DCs differentially migrated toward LTB4 and CCL21, a lymph node-homing chemoattractant, respectively. By generating LTB4-producing enzyme LTA4H knockout mice and CD11c promoter-driven Cre recombinase-expressing BLT1 conditional knockout (BLT1 cKO) mice, we showed that the migration of BLT1hi DCs exacerbated allergic contact dermatitis. Comprehensive transcriptome analysis revealed that BLT1hi DCs preferentially induced Th1 differentiation by upregulating IL-12p35 expression, whereas BLT1lo DCs accelerated T cell proliferation by producing IL-2. Collectively, the data reveal an unexpected role for BLT1 as a novel DC subset marker and provide novel insights into the role of the LTB4-BLT1 axis in the spatiotemporal regulation of distinct DC subsets.
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Affiliation(s)
- Tomoaki Koga
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Medical Cell Biology, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, 860-0811, Japan
| | - Fumiyuki Sasaki
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan
| | - Kazuko Saeki
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Soken Tsuchiya
- Department of Pharmaceutical Biochemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, 862-0973, Japan
| | - Toshiaki Okuno
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Mai Ohba
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Takako Ichiki
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Satoshi Iwamoto
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Hirotsugu Uzawa
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Keiko Kitajima
- Department of Developmental Biology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Chikara Meno
- Department of Developmental Biology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Eri Nakamura
- Laboratory of Genome Research, Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Norihiro Tada
- Laboratory of Genome Research, Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Yoshinori Fukui
- Division of Immunogenetics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka, 812-8582, Japan
| | - Junichi Kikuta
- Department of Immunology and Cell Biology, Graduate School of Medicine and Frontier Biosciences, Osaka University, Osaka, 565-0871, Japan
| | - Masaru Ishii
- Department of Immunology and Cell Biology, Graduate School of Medicine and Frontier Biosciences, Osaka University, Osaka, 565-0871, Japan
| | - Yukihiko Sugimoto
- Department of Pharmaceutical Biochemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, 862-0973, Japan
| | - Mitsuyoshi Nakao
- Department of Medical Cell Biology, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, 860-0811, Japan
| | - Takehiko Yokomizo
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan.
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43
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Michaelian N, Sadybekov A, Besserer-Offroy É, Han GW, Krishnamurthy H, Zamlynny BA, Fradera X, Siliphaivanh P, Presland J, Spencer KB, Soisson SM, Popov P, Sarret P, Katritch V, Cherezov V. Structural insights on ligand recognition at the human leukotriene B4 receptor 1. Nat Commun 2021; 12:2971. [PMID: 34016973 PMCID: PMC8137929 DOI: 10.1038/s41467-021-23149-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 04/16/2021] [Indexed: 01/09/2023] Open
Abstract
The leukotriene B4 receptor 1 (BLT1) regulates the recruitment and chemotaxis of different cell types and plays a role in the pathophysiology of infectious, allergic, metabolic, and tumorigenic human diseases. Here we present a crystal structure of human BLT1 (hBLT1) in complex with a selective antagonist MK-D-046, developed for the treatment of type 2 diabetes and other inflammatory conditions. Comprehensive analysis of the structure and structure-activity relationship data, reinforced by site-directed mutagenesis and docking studies, reveals molecular determinants of ligand binding and selectivity toward different BLT receptor subtypes and across species. The structure helps to identify a putative membrane-buried ligand access channel as well as potential receptor binding modes of endogenous agonists. These structural insights of hBLT1 enrich our understanding of its ligand recognition and open up future avenues in structure-based drug design.
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Affiliation(s)
- Nairie Michaelian
- grid.42505.360000 0001 2156 6853Bridge Institute, USC Michelson Center for Convergent Bioscience, University of Southern California, Los Angeles, CA USA ,grid.42505.360000 0001 2156 6853Department of Chemistry, University of Southern California, Los Angeles, CA USA
| | - Anastasiia Sadybekov
- grid.42505.360000 0001 2156 6853Bridge Institute, USC Michelson Center for Convergent Bioscience, University of Southern California, Los Angeles, CA USA ,grid.42505.360000 0001 2156 6853Department of Chemistry, University of Southern California, Los Angeles, CA USA
| | - Élie Besserer-Offroy
- grid.86715.3d0000 0000 9064 6198Department of Pharmacology-Physiology, Faculty of Medicine and Health Sciences, Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC Canada ,grid.19006.3e0000 0000 9632 6718Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA USA
| | - Gye Won Han
- grid.42505.360000 0001 2156 6853Bridge Institute, USC Michelson Center for Convergent Bioscience, University of Southern California, Los Angeles, CA USA ,grid.42505.360000 0001 2156 6853Department of Chemistry, University of Southern California, Los Angeles, CA USA
| | - Harini Krishnamurthy
- grid.417993.10000 0001 2260 0793Merck Research Laboratories, Merck & Co., Inc., Kenilworth, NJ USA
| | - Beata A. Zamlynny
- grid.417993.10000 0001 2260 0793Merck Research Laboratories, Merck & Co., Inc., Kenilworth, NJ USA
| | - Xavier Fradera
- grid.417993.10000 0001 2260 0793Merck Research Laboratories, Merck & Co., Inc., Kenilworth, NJ USA
| | - Phieng Siliphaivanh
- grid.417993.10000 0001 2260 0793Merck Research Laboratories, Merck & Co., Inc., Kenilworth, NJ USA
| | - Jeremy Presland
- grid.417993.10000 0001 2260 0793Merck Research Laboratories, Merck & Co., Inc., Kenilworth, NJ USA
| | - Kerrie B. Spencer
- grid.417993.10000 0001 2260 0793Merck Research Laboratories, Merck & Co., Inc., Kenilworth, NJ USA
| | - Stephen M. Soisson
- grid.417993.10000 0001 2260 0793Merck Research Laboratories, Merck & Co., Inc., Kenilworth, NJ USA
| | - Petr Popov
- grid.454320.40000 0004 0555 3608Center for Computational and Data Intensive Science and Engineering, Skolkovo Institute of Science and Technology, Moscow, Russia ,grid.18763.3b0000000092721542Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - Philippe Sarret
- grid.86715.3d0000 0000 9064 6198Department of Pharmacology-Physiology, Faculty of Medicine and Health Sciences, Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC Canada
| | - Vsevolod Katritch
- grid.42505.360000 0001 2156 6853Bridge Institute, USC Michelson Center for Convergent Bioscience, University of Southern California, Los Angeles, CA USA ,grid.42505.360000 0001 2156 6853Department of Chemistry, University of Southern California, Los Angeles, CA USA ,grid.42505.360000 0001 2156 6853Department of Quantitative and Computational Biology, University of Southern California, Los Angeles, CA USA
| | - Vadim Cherezov
- grid.42505.360000 0001 2156 6853Bridge Institute, USC Michelson Center for Convergent Bioscience, University of Southern California, Los Angeles, CA USA ,grid.42505.360000 0001 2156 6853Department of Chemistry, University of Southern California, Los Angeles, CA USA ,grid.18763.3b0000000092721542Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
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Xie S, Qi X, Wu Q, Wei L, Zhang M, Xing Y, Shi W, Chen S, Zeng X, Wang S, Guo H, Deng W. Inhibition of 5-lipoxygenase is associated with downregulation of the leukotriene B4 receptor 1/ Interleukin-12p35 pathway and ameliorates sepsis-induced myocardial injury. Free Radic Biol Med 2021; 166:348-357. [PMID: 33705958 DOI: 10.1016/j.freeradbiomed.2021.02.034] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 02/19/2021] [Accepted: 02/24/2021] [Indexed: 11/21/2022]
Abstract
Sepsis rapidly contributed to multiorgan failure affecting most commonly of the cardiovascular and respiratory systems and yet there were no effective therapies. The current study aimed at providing evidence on the cardioprotection of suppression of 5-Lipoxygenase (5-Lox) and identifying the possible mechanism in the mouse model of sepsis. The cecal ligation-perforation (CLP) model was applied to C57BL/6 wild-type (WT) and 5-Lox deficient (5-Lox-/-) mice to induce sepsis. 5-Lox expression was up-regulated in mouse myocardium and leukotriene B4 (LTB4) level was increased in serum after sepsis. Subsequently, we utilized a recombinant adenoviral expression vector (rAAV9) to overexpress Alox5 gene in adult mice. Compared to WT mice, 5-Lox overexpression accelerated CLP-induced myocardial injury and cardiac dysfunction. Oppositely, 5-Lox deficiency offered protection against myocardial injury in a mouse model of sepsis and attenuated sepsis-mediated inflammation, oxidative stress and apoptosis in the mouse heart. Mechanically, 5-Lox promoted LTB4 production, which in turn contributed to the activation of leukotriene B4 receptor 1 (BLT1)/interleukin-12p35 (IL-12p35) pathway and enhanced M1 macrophage polarization. However, the suppression of BLT1 by either gene mutation or antagonist U75302 significantly inhibited the adverse effect of 5-Lox in sepsis. Further study demonstrated that pharmacological inhibition of 5-Lox prevented CLP-induced septic cardiomyopathy (SCM). Our study identified 5-Lox exacerbated sepsis-associated myocardial injury through activation of LTB4 production and promoting BLT1/IL-12p35 pathway. Hence, inhibition of 5-Lox may be a potential candidate strategy for septic cardiac dysfunction treatment.
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Affiliation(s)
- Saiyang Xie
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China
| | - Xiping Qi
- Department of Transfusion, Wuhan Hospital of Traditional Chinese and Western Medicine (Wuhan No.1 Hospital), Wuhan, 430060, China
| | - Qingqing Wu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China
| | - Li Wei
- Department of Pediatrics, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Min Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China
| | - Yun Xing
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China
| | - Wenke Shi
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China
| | - Si Chen
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China
| | - Xiaofeng Zeng
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China
| | - Shasha Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China
| | - Haipeng Guo
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, 250012, China; Department of Critical Care Medicine, Qilu Hospital of Shandong University, 107 Wenhuaxi Road, Jinan, 250012, China
| | - Wei Deng
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, China.
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45
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Wang B, Wu L, Chen J, Dong L, Chen C, Wen Z, Hu J, Fleming I, Wang DW. Metabolism pathways of arachidonic acids: mechanisms and potential therapeutic targets. Signal Transduct Target Ther 2021; 6:94. [PMID: 33637672 PMCID: PMC7910446 DOI: 10.1038/s41392-020-00443-w] [Citation(s) in RCA: 419] [Impact Index Per Article: 139.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/04/2020] [Accepted: 10/15/2020] [Indexed: 01/31/2023] Open
Abstract
The arachidonic acid (AA) pathway plays a key role in cardiovascular biology, carcinogenesis, and many inflammatory diseases, such as asthma, arthritis, etc. Esterified AA on the inner surface of the cell membrane is hydrolyzed to its free form by phospholipase A2 (PLA2), which is in turn further metabolized by cyclooxygenases (COXs) and lipoxygenases (LOXs) and cytochrome P450 (CYP) enzymes to a spectrum of bioactive mediators that includes prostanoids, leukotrienes (LTs), epoxyeicosatrienoic acids (EETs), dihydroxyeicosatetraenoic acid (diHETEs), eicosatetraenoic acids (ETEs), and lipoxins (LXs). Many of the latter mediators are considered to be novel preventive and therapeutic targets for cardiovascular diseases (CVD), cancers, and inflammatory diseases. This review sets out to summarize the physiological and pathophysiological importance of the AA metabolizing pathways and outline the molecular mechanisms underlying the actions of AA related to its three main metabolic pathways in CVD and cancer progression will provide valuable insight for developing new therapeutic drugs for CVD and anti-cancer agents such as inhibitors of EETs or 2J2. Thus, we herein present a synopsis of AA metabolism in human health, cardiovascular and cancer biology, and the signaling pathways involved in these processes. To explore the role of the AA metabolism and potential therapies, we also introduce the current newly clinical studies targeting AA metabolisms in the different disease conditions.
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Affiliation(s)
- Bei Wang
- Division of Cardiology, Department of Internal Medicine and Gene Therapy Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Hubei Province, Wuhan, China
- Department of Rheumatology and Immunology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hubei, Wuhan, China
| | - Lujin Wu
- Division of Cardiology, Department of Internal Medicine and Gene Therapy Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Hubei Province, Wuhan, China
| | - Jing Chen
- Division of Cardiology, Department of Internal Medicine and Gene Therapy Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Hubei Province, Wuhan, China
| | - Lingli Dong
- Department of Rheumatology and Immunology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hubei, Wuhan, China
| | - Chen Chen
- Division of Cardiology, Department of Internal Medicine and Gene Therapy Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Hubei Province, Wuhan, China
| | - Zheng Wen
- Division of Cardiology, Department of Internal Medicine and Gene Therapy Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Hubei Province, Wuhan, China
| | - Jiong Hu
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany
| | - Ingrid Fleming
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany
| | - Dao Wen Wang
- Division of Cardiology, Department of Internal Medicine and Gene Therapy Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Hubei Province, Wuhan, China.
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46
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Yonker LM, Barrios J, Mou H, Hurley BP. Untapped Potential: Therapeutically Targeting Eicosanoids and Endocannabinoids in the Lung. Clin Pharmacol Ther 2021; 110:69-81. [PMID: 33423293 DOI: 10.1002/cpt.2165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 12/20/2020] [Indexed: 02/05/2023]
Abstract
Inflammation of the airway involves the recruitment of highly active immune cells to combat and clear microbes and toxic factors; however, this inflammatory response can result in unintended damage to lung tissue. Tissue damage resulting from inflammation is often mitigated by resolving factors that limit the scope and duration of the inflammatory response. Both inflammatory and resolving processes require the actions of a vast array of lipid mediators that can be rapidly synthesized through a variety of airway resident and infiltrating immune cells. Eicosanoids and endocannabinoids represent two major classes of lipid mediators that share synthetic enzymes and have diverse and overlapping functions. This review seeks to provide a summary of the major bioactive eicosanoids and endocannabinoids, challenges facing researchers that study them, and their roles in modulating inflammation and resolution. With a special emphasis on cystic fibrosis, a variety of therapeutics are discussed that have been explored for their potential anti-inflammatory or proresolving impact toward alleviating excessive airway inflammation and improving lung function.
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Affiliation(s)
- Lael M Yonker
- Massachusetts General Hospital, Department of Pediatrics, Pulmonary Division, Boston, Massachusetts, USA.,Massachusetts General Hospital, Mucosal Immunology and Biology Research Center, Boston, Massachusetts, USA.,Harvard Medical School, Department of Pediatrics, Boston, Massachusetts, USA
| | - Juliana Barrios
- Massachusetts General Hospital, Mucosal Immunology and Biology Research Center, Boston, Massachusetts, USA.,Harvard Medical School, Department of Pediatrics, Boston, Massachusetts, USA
| | - Hongmei Mou
- Massachusetts General Hospital, Mucosal Immunology and Biology Research Center, Boston, Massachusetts, USA.,Harvard Medical School, Department of Pediatrics, Boston, Massachusetts, USA
| | - Bryan P Hurley
- Massachusetts General Hospital, Mucosal Immunology and Biology Research Center, Boston, Massachusetts, USA.,Harvard Medical School, Department of Pediatrics, Boston, Massachusetts, USA
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47
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Narla S, Azzam M, Townsend S, Vellaichamy G, Marzano AV, Alavi A, Lowes MA, Hamzavi IH. Identifying key components and therapeutic targets of the immune system in hidradenitis suppurativa with an emphasis on neutrophils. Br J Dermatol 2021; 184:1004-1013. [PMID: 32893875 DOI: 10.1111/bjd.19538] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 08/05/2020] [Accepted: 08/29/2020] [Indexed: 12/13/2022]
Abstract
Hidradenitis suppurativa (HS) is a chronic, inflammatory, recurrent and debilitating skin disease of the hair follicle unit that typically develops after puberty. The disorder is characterized by comedones, painful inflammatory nodules, abscesses, dermal tunnels and scarring, with a predilection for intertriginous areas of the body (axillae, inguinal and anogenital regions). Recruitment of neutrophils to HS lesion sites may play an essential role in the development of the painful inflammatory nodules and abscesses that characterize the disease. This is a review of the major mediators involved in the recruitment of neutrophils to sites of active inflammation, including bacterial components (endotoxins, exotoxins, capsule fragments, etc.), the complement pathway anaphylatoxins C3a and C5a, tumour necrosis factor-alpha, interleukin (IL)-17, IL-8 (CXCL8), IL-36, IL-1, lipocalin-2, leukotriene B4, platelet-activating factor, kallikreins, matrix metalloproteinases, and myeloperoxidase inhibitors. Pharmacological manipulation of the various pathways involved in the process of neutrophil recruitment and activation could allow for successful control and stabilization of HS lesions and the remission of active, severe flares.
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Affiliation(s)
- S Narla
- Department of Dermatology, Henry Ford Hospital, Detroit, MI, USA
| | - M Azzam
- University of Nevada School of Medicine, Reno, NV, USA
| | - S Townsend
- Wayne State School of Medicine, Detroit, MI, USA
| | | | - A V Marzano
- Dermatology Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Physiopathology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - A Alavi
- Division of Dermatology, Department of Medicine, Women's College Hospital, University of Toronto, Toronto, ON, Canada
| | - M A Lowes
- The Rockefeller University, New York, NY, USA
| | - I H Hamzavi
- Department of Dermatology, Henry Ford Hospital, Detroit, MI, USA
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48
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Santoso JL, Notopuro H, Qurnianingsih E. Effect of Ethanol Extract of Mangosteen Peel on Serum Malondialdehyde and Leukotriene B4 Levels in Male White Rats (Rattus norvegicus) Wistar Strain Exposed with Electric Cigarette Smoke. FOLIA MEDICA INDONESIANA 2021. [DOI: 10.20473/fmi.v56i4.24612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
This study aims to analyze the administration of mangosteen peel ethanol extract at different doses can reduce levels of malondialdehyde (MDA) and leukotriene B4 (LTB4) serum in male white rats (Rattus norvegicus) Wistar strains exposed to electric cigarette smoke. Electric cigarette induces mitochondrial ROS production and triggers oxidative stress. Antioxidants are needed by the body if there are many free radicals, for example mangosteen peel. This laboratory experimental study uses a randomized post test only control group design. Thirty male white rats were divided into 5 groups randomly (KK, KR, P1, P2, P3). KK given 0.5% Na-CMC, KR given smoke and 0.5% Na-CMC, P1, P2, P3 given smoke and mangosteen peel ethanol extract 100, 200, 300 mg / kg weight. Data were tested for normality and homogeneity tests. Data distribution was found not normal. Data were tested by Kruskal-Wallis Test and Mann-Whitney. Kruskal-Wallis Test results showed significant differences in MDA and LTB4 levels in each experimental group (KS, KR, P1, P2 and P3), p <0.05. Mann-Whitney test results showed a significant difference in the MDA levels of the KR against P3 and in the LTB4 level of the KR against P2 (p <0.05). The conclusion of the study was the administration of mangosteen peel ethanol extract can reduce MDA and LTB4 levels serum in male white rats (Rattus norvegicus) Wistar strains exposed to electric cigarette smoke.
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Uzawa H, Kohno D, Koga T, Sasaki T, Fukunaka A, Okuno T, Jo-Watanabe A, Kazuno S, Miyatsuka T, Kitamura T, Fujitani Y, Watada H, Saeki K, Yokomizo T. Leukotriene A 4 hydrolase deficiency protects mice from diet-induced obesity by increasing energy expenditure through neuroendocrine axis. FASEB J 2020; 34:13949-13958. [PMID: 32844470 DOI: 10.1096/fj.202001148r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 08/06/2020] [Accepted: 08/07/2020] [Indexed: 12/20/2022]
Abstract
Obesity is a health problem worldwide, and brown adipose tissue (BAT) is important for energy expenditure. Here, we explored the role of leukotriene A4 hydrolase (LTA4 H), a key enzyme in the synthesis of the lipid mediator leukotriene B4 (LTB4 ), in diet-induced obesity. LTA4 H-deficient (LTA4 H-KO) mice fed a high-fat diet (HFD) showed a lean phenotype, and bone-marrow transplantation studies revealed that LTA4 H-deficiency in non-hematopoietic cells was responsible for this lean phenotype. LTA4 H-KO mice exhibited greater energy expenditure, but similar food intake and fecal energy loss. LTA4 H-KO BAT showed higher expression of thermogenesis-related genes. In addition, the plasma thyroid-stimulating hormone and thyroid hormone concentrations, as well as HFD-induced catecholamine secretion, were higher in LTA4 H-KO mice. In contrast, LTB4 receptor (BLT1)-deficient mice did not show a lean phenotype, implying that the phenotype of LTA4 H-KO mice is independent of the LTB4 /BLT1 axis. These results indicate that LTA4 H mediates the diet-induced obesity by reducing catecholamine and thyroid hormone secretion.
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Affiliation(s)
- Hirotsugu Uzawa
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan.,Department of Metabolism and Endocrinology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Daisuke Kohno
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
| | - Tomoaki Koga
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan.,Department of Medical Cell Biology, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - Tsutomu Sasaki
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan.,Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Ayako Fukunaka
- Laboratory of Developmental Biology and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
| | - Toshiaki Okuno
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan
| | - Airi Jo-Watanabe
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan
| | - Saiko Kazuno
- Laboratory of Proteomics and Biomolecular Science, Research Support Center, Juntendo University School of Medicine, Tokyo, Japan
| | - Takeshi Miyatsuka
- Department of Metabolism and Endocrinology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Tadahiro Kitamura
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
| | - Yoshio Fujitani
- Laboratory of Developmental Biology and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
| | - Hirotaka Watada
- Department of Metabolism and Endocrinology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Kazuko Saeki
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan
| | - Takehiko Yokomizo
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan
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50
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Kahremany S, Hofmann L, Gruzman A, Cohen G. Advances in Understanding the Initial Steps of Pruritoceptive Itch: How the Itch Hits the Switch. Int J Mol Sci 2020; 21:ijms21144883. [PMID: 32664385 PMCID: PMC7402353 DOI: 10.3390/ijms21144883] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 02/07/2023] Open
Abstract
Pruritoceptive (dermal) itch was long considered an accompanying symptom of diseases, a side effect of drug applications, or a temporary sensation induced by invading pruritogens, as produced by the stinging nettle. Due to extensive research in recent years, it was possible to provide detailed insights into the mechanism of itch mediation and modulation. Hence, it became apparent that pruritus is a complex symptom or disease in itself, which requires particular attention to improve patients’ health. Here, we summarize recent findings in pruritoceptive itch, including how this sensation is triggered and modulated by diverse endogenous and exogenous pruritogens and their receptors. A differentiation between mediating pruritogen and modulating pruritogen seems to be of great advantage to understand and decipher the molecular mechanism of itch perception. Only a comprehensive view on itch sensation will provide a solid basis for targeting this long-neglected adverse sensation accompanying numerous diseases and many drug side effects. Finally, we identify critical aspects of itch perception that require future investigation.
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Affiliation(s)
- Shirin Kahremany
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel; (L.H.); (A.G.)
- The Skin Research Institute, The Dead Sea and Arava Science Center, Masada 86910, Israel;
- Correspondence:
| | - Lukas Hofmann
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel; (L.H.); (A.G.)
| | - Arie Gruzman
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel; (L.H.); (A.G.)
| | - Guy Cohen
- The Skin Research Institute, The Dead Sea and Arava Science Center, Masada 86910, Israel;
- Ben-Gurion University of the Negev, Eilat Campus, Eilat 8855630, Israel
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