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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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Sommer K, Jakob H, Lettenmeier T, Henrich D, Sterz J, Marzi I, Frank J. Various effects of 11,12 EET rescue wound healing in a combined model of diabetes and ischemia. Sci Rep 2023; 13:6519. [PMID: 37085527 PMCID: PMC10121596 DOI: 10.1038/s41598-023-33400-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 04/12/2023] [Indexed: 04/23/2023] Open
Abstract
Chronic non healing wounds in diabetic patients still impose a major problem in modern medicine. Especially additional peripheral vascular disease complicates treatment success in these patients. Thus, we analyzed the effects of 11,12 epoxyeicosatrienoic acid (EET) in a combined model of hyperglycemia and ischemia in mice. Hyperglycemia was induced by Streptozotozin 2 weeks prior to wounding. 3 days before wound creation 2 of the 3 suppling vessels of the moue ear were cautherized for ischemia. Either 11,12 EET or solvent for control was applied. Wound closure as well as TNF-α, TGF-β, SDF-1α, VEGF, CD31, and Ki67 were measured. The wounds closed on day 14.4 ± 0.4 standard deviation (SD). 11,12 EET treatment enhanced healing to 9.8 ± 0.6 SD. TNF-α level was augmented on day 9 compared to control and receded on day 18. TGF-β seemed to be elevated all days observed after 11,12 EET treatment. SDF-1α was enhanced on day 6 and 9 by 11,12 EET, and VEGF on day 6 and 18 as well as CD13 on day 3, 6, and 18. 11,12 EET did not alter Ki67. 11,12 EET are able to rescue deteriorated wound healing in a combined model of hyperglycamia and ischemia by resolution of inflammation, augmentation of neovascularization and increasing expression of TGF-β as well as SDF-1α.
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Affiliation(s)
- Katharina Sommer
- Department of Trauma, Hand and Reconstructive Surgery, Hospital of the Johann Wolfgang Goethe-University, Frankfurt am Main, Germany.
| | - Heike Jakob
- Department of Trauma, Hand and Reconstructive Surgery, Marienhausklinik St. Josef Kohlhof, Neunkirchen, Germany
| | - Theresa Lettenmeier
- Department of Trauma, Hand and Reconstructive Surgery, Hospital of the Johann Wolfgang Goethe-University, Frankfurt am Main, Germany
| | - Dirk Henrich
- Department of Trauma, Hand and Reconstructive Surgery, Hospital of the Johann Wolfgang Goethe-University, Frankfurt am Main, Germany
| | - Jasmina Sterz
- Department of Trauma, Hand and Reconstructive Surgery, Hospital of the Johann Wolfgang Goethe-University, Frankfurt am Main, Germany
| | - Ingo Marzi
- Department of Trauma, Hand and Reconstructive Surgery, Hospital of the Johann Wolfgang Goethe-University, Frankfurt am Main, Germany
| | - Johannes Frank
- Department of Trauma, Hand and Reconstructive Surgery, Hospital of the Johann Wolfgang Goethe-University, Frankfurt am Main, Germany
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Hamsanathan S, Gurkar AU. Lipids as Regulators of Cellular Senescence. Front Physiol 2022; 13:796850. [PMID: 35370799 PMCID: PMC8965560 DOI: 10.3389/fphys.2022.796850] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 01/03/2022] [Indexed: 12/11/2022] Open
Abstract
Lipids are key macromolecules that perform a multitude of biological functions ranging from maintaining structural integrity of membranes, energy storage, to signaling molecules. Unsurprisingly, variations in lipid composition and its levels can influence the functional and physiological state of the cell and its milieu. Cellular senescence is a permanent state of cell cycle arrest and is a hallmark of the aging process, as well as several age-related pathologies. Senescent cells are often characterized by alterations in morphology, metabolism, chromatin remodeling and exhibit a complex pro-inflammatory secretome (SASP). Recent studies have shown that the regulation of specific lipid species play a critical role in senescence. Indeed, some lipid species even contribute to the low-grade inflammation associated with SASP. Many protein regulators of senescence have been well characterized and are associated with lipid metabolism. However, the link between critical regulators of cellular senescence and senescence-associated lipid changes is yet to be elucidated. Here we systematically review the current knowledge on lipid metabolism and dynamics of cellular lipid content during senescence. We focus on the roles of major players of senescence in regulating lipid metabolism. Finally, we explore the future prospects of lipid research in senescence and its potential to be targeted as senotherapeutics.
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Affiliation(s)
- Shruthi Hamsanathan
- Aging Institute of UPMC, The University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Aditi U. Gurkar
- Aging Institute of UPMC, The University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
- Division of Geriatric Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
- Geriatric Research, Education and Clinical Center, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA, United States
- *Correspondence: Aditi U. Gurkar,
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4
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Wan D, Morisseau C, Hammock BD, Yang J. A Fast and Selective Approach for Profiling Vicinal Diols Using Liquid Chromatography-Post Column Derivatization-Double Precursor Ion Scanning Mass Spectrometry. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27010283. [PMID: 35011515 PMCID: PMC8747065 DOI: 10.3390/molecules27010283] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 12/23/2021] [Accepted: 12/31/2021] [Indexed: 12/30/2022]
Abstract
Vicinal diols are important signaling metabolites of various inflammatory diseases, and some of them are potential biomarkers for some diseases. Utilizing the rapid reaction between diol and 6-bromo-3-pyridinylboronic acid (BPBA), a selective and sensitive approach was established to profile these vicinal diols using liquid chromatography-post column derivatization coupled with double precursor ion scan-mass spectrometry (LC-PCD-DPIS-MS). After derivatization, all BPBA-vicinal-diol esters gave a pair of characteristic isotope ions resulting from 79Br and 81Br. The unique isotope pattern generated two characteristic fragment ions of m/z 200 and 202. Compared to a traditional offline derivatization technique, the new LC-PCD-DPIS-MS method retained the capacity of LC separation. In addition, it is more sensitive and selective than a full scan MS method. As an application, an in vitro study of the metabolism of epoxy fatty acids by human soluble epoxide hydrolase was tested. These vicinal-diol metabolites of individual regioisomers from different types of polyunsaturated fatty acids were easily identified. The limit of detection (LOD) reached as low as 25 nM. The newly developed LC-PCD-DPIS-MS method shows significant advantages in improving the selectivity and therefore can be employed as a powerful tool for profiling vicinal-diol compounds from biological matrices.
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Affiliation(s)
| | | | | | - Jun Yang
- Correspondence: ; Tel.: +1-530-752-5109
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5
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Pils V, Terlecki-Zaniewicz L, Schosserer M, Grillari J, Lämmermann I. The role of lipid-based signalling in wound healing and senescence. Mech Ageing Dev 2021; 198:111527. [PMID: 34174292 DOI: 10.1016/j.mad.2021.111527] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 05/28/2021] [Accepted: 06/17/2021] [Indexed: 02/07/2023]
Abstract
Lipid-based signalling modulates several cellular processes and intercellular communication during wound healing and tissue regeneration. Bioactive lipids include but are not limited to the diverse group of eicosanoids, phospholipids, and extracellular vesicles and mediate the attraction of immune cells, initiation of inflammatory responses, and their resolution. In aged individuals, wound healing and tissue regeneration are greatly impaired, resulting in a delayed healing process and non-healing wounds. Senescent cells accumulate with age in vivo, preferably at sites implicated in age-associated pathologies and their elimination was shown to alleviate many age-associated diseases and disorders. In contrast to these findings, the transient presence of senescent cells in the process of wound healing exerts beneficial effects and limits fibrosis. Hence, clearance of senescent cells during wound healing was repeatedly shown to delay wound closure in vivo. Recent findings established a dysregulated synthesis of eicosanoids, phospholipids and extracellular vesicles as part of the senescent phenotype. This intriguing connection between cellular senescence, lipid-based signalling, and the process of wound healing and tissue regeneration prompts us to compile the current knowledge in this review and propose future directions for investigation.
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Affiliation(s)
- Vera Pils
- Christian Doppler Laboratory for the Biotechnology of Skin Aging, Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Lucia Terlecki-Zaniewicz
- Christian Doppler Laboratory for the Biotechnology of Skin Aging, Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Markus Schosserer
- Christian Doppler Laboratory for Skin Multimodal Imaging of Aging and Senescence - SKINMAGINE, Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Austria
| | - Johannes Grillari
- Christian Doppler Laboratory for the Biotechnology of Skin Aging, Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, Vienna, Austria; Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Research Center, Linz and Vienna, Austria; Austrian Cluster for Tissue Regeneration, Austria
| | - Ingo Lämmermann
- Christian Doppler Laboratory for the Biotechnology of Skin Aging, Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, Vienna, Austria.
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6
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Borkowski K, Newman JW, Aghaeepour N, Mayo JA, Blazenović I, Fiehn O, Stevenson DK, Shaw GM, Carmichael SL. Mid-gestation serum lipidomic profile associations with spontaneous preterm birth are influenced by body mass index. PLoS One 2020; 15:e0239115. [PMID: 33201881 PMCID: PMC7671555 DOI: 10.1371/journal.pone.0239115] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 08/31/2020] [Indexed: 01/11/2023] Open
Abstract
Spontaneous preterm birth (sPTB) is a major cause of infant morbidity and mortality. While metabolic changes leading to preterm birth are unknown, several factors including dyslipidemia and inflammation have been implicated and paradoxically both low (<18.5 kg/m2) and high (>30 kg/m2) body mass indices (BMIs) are risk factors for this condition. The objective of the study was to identify BMI-associated metabolic perturbations and potential mid-gestation serum biomarkers of preterm birth in a cohort of underweight, normal weight and obese women experiencing either sPTB or full-term deliveries (n = 102; n = 17/group). For this purpose, we combined untargeted metabolomics and lipidomics with targeted metabolic profiling of major regulators of inflammation and metabolism, including oxylipins, endocannabinoids, bile acids and ceramides. Women who were obese and had sPTB showed elevated oxidative stress and dyslipidemia characterized by elevated serum free fatty acids. Women who were underweight-associated sPTB also showed evidence of dyslipidemia characterized by elevated phospholipids, unsaturated triglycerides, sphingomyelins, cholesteryl esters and long-chain acylcarnitines. In normal weight women experiencing sPTB, the relative abundance of 14(15)-epoxyeicosatrienoic acid and 14,15-dihydroxyeicosatrienoic acids to other regioisomers were altered at mid-pregnancy. This phenomenon is not yet associated with any biological process, but may be linked to estrogen metabolism. These changes were differentially modulated across BMI groups. In conclusion, using metabolomics we observed distinct BMI-dependent metabolic manifestations among women who had sPTB. These observations suggest the potential to predict sPTB mid-gestation using a new set of metabolomic markers and BMI stratification. This study opens the door to further investigate the role of cytochrome P450/epoxide hydrolase metabolism in sPTB.
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Affiliation(s)
- Kamil Borkowski
- West Coast Metabolomic Center, Genome Center, University of California-Davis, Davis, CA, United States of America
- * E-mail:
| | - John W. Newman
- West Coast Metabolomic Center, Genome Center, University of California-Davis, Davis, CA, United States of America
- United States Department of Agriculture-Agriculture Research Service-Western Human Nutrition Research Center, Davis, CA, United States of America
- Department of Nutrition, University of California-Davis, Davis, CA, United States of America
| | - Nima Aghaeepour
- Department of Anesthesiology, Pain, and Perioperative Medicine, Stanford University School of Medicine, Stanford, CA, United States of America
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, United States of America
- Department of Biomedical Data Sciences, Stanford University School of Medicine, Stanford, CA, United States of America
| | - Jonathan A. Mayo
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, United States of America
| | - Ivana Blazenović
- West Coast Metabolomic Center, Genome Center, University of California-Davis, Davis, CA, United States of America
| | - Oliver Fiehn
- West Coast Metabolomic Center, Genome Center, University of California-Davis, Davis, CA, United States of America
| | - David K. Stevenson
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, United States of America
| | - Gary M. Shaw
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, United States of America
| | - Suzan L. Carmichael
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, United States of America
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7
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Yasukawa K, Okuno T, Yokomizo T. Eicosanoids in Skin Wound Healing. Int J Mol Sci 2020; 21:ijms21228435. [PMID: 33182690 PMCID: PMC7698125 DOI: 10.3390/ijms21228435] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/06/2020] [Accepted: 11/09/2020] [Indexed: 12/17/2022] Open
Abstract
Wound healing is an important process in the human body to protect against external threats. A dysregulation at any stage of the wound healing process may result in the development of various intractable ulcers or excessive scar formation. Numerous factors such as growth factors, cytokines, and chemokines are involved in this process and play vital roles in tissue repair. Moreover, recent studies have demonstrated that lipid mediators derived from membrane fatty acids are also involved in the process of wound healing. Among these lipid mediators, we focus on eicosanoids such as prostaglandins, thromboxane, leukotrienes, and specialized pro-resolving mediators, which are produced during wound healing processes and play versatile roles in the process. This review article highlights the roles of eicosanoids on skin wound healing, especially focusing on the biosynthetic pathways and biological functions, i.e., inflammation, proliferation, migration, angiogenesis, remodeling, and scarring.
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Affiliation(s)
- Ken Yasukawa
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (K.Y.); (T.Y.)
- Drug Discovery Research Department, Sato Pharmaceutical Co., Ltd., Tokyo 140-0011, Japan
| | - Toshiaki Okuno
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (K.Y.); (T.Y.)
- Correspondence: ; Tel.: +81-3-5802-1031
| | - Takehiko Yokomizo
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (K.Y.); (T.Y.)
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Imig JD, Jankiewicz WK, Khan AH. Epoxy Fatty Acids: From Salt Regulation to Kidney and Cardiovascular Therapeutics: 2019 Lewis K. Dahl Memorial Lecture. Hypertension 2020; 76:3-15. [PMID: 32475311 DOI: 10.1161/hypertensionaha.120.13898] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Epoxyeicosatrienoic acids (EETs) are epoxy fatty acids that have biological actions that are essential for maintaining water and electrolyte homeostasis. An inability to increase EETs in response to a high-salt diet results in salt-sensitive hypertension. Vasodilation, inhibition of epithelial sodium channel, and inhibition of inflammation are the major EET actions that are beneficial to the heart, resistance arteries, and kidneys. Genetic and pharmacological means to elevate EETs demonstrated antihypertensive, anti-inflammatory, and organ protective actions. Therapeutic approaches to increase EETs were then developed for cardiovascular diseases. sEH (soluble epoxide hydrolase) inhibitors were developed and progressed to clinical trials for hypertension, diabetes mellitus, and other diseases. EET analogs were another therapeutic approach taken and these drugs are entering the early phases of clinical development. Even with the promise for these therapeutic approaches, there are still several challenges, unexplored areas, and opportunities for epoxy fatty acids.
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Affiliation(s)
- John D Imig
- From the Department of Pharmacology and Toxicology, Cardiovascular Center, Medical College of Wisconsin, Milwaukee
| | - Wojciech K Jankiewicz
- From the Department of Pharmacology and Toxicology, Cardiovascular Center, Medical College of Wisconsin, Milwaukee
| | - Abdul H Khan
- From the Department of Pharmacology and Toxicology, Cardiovascular Center, Medical College of Wisconsin, Milwaukee
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Savina Y, Duflot T, Bounoure F, Kotzki S, Thiebaut PA, Serreau PA, Skiba M, Picquenot JM, Cornic M, Morisseau C, Hammock B, Imbert L, Cracowski JL, Richard V, Roustit M, Bellien J. Impact of the acute local inhibition of soluble epoxide hydrolase on diabetic skin microcirculatory dysfunction. Diab Vasc Dis Res 2019; 16:523-529. [PMID: 31267765 PMCID: PMC7307659 DOI: 10.1177/1479164119860215] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The impact of the local inhibition of soluble epoxide hydrolase, which metabolizes vasodilator and anti-inflammatory epoxyeicosanoids, on diabetic skin microvascular dysfunction was assessed. In diabetic db/db mice, basal skin blood flow assessed using laser Doppler imaging was similar to that of control mice, but thermal hyperemia was markedly reduced. At 2 h after the topical administration of an aqueous gel containing the soluble epoxide hydrolase inhibitor trans-4-[4-(3-adamantan-1-yl-ureido)-cyclohexyloxy]-benzoic acid (t-AUCB: 400 mg/L), the peak concentration of t-AUCB was detected in the skin of diabetic mice, which quickly decreased thereafter. In parallel, 2 h after application of t-AUCB treatment, thermal hyperemia was increased compared to the control gel. Quantification of t-AUCB in plasma of treated animals showed no or low systemic diffusion. Furthermore, haematoxylin and eosin histological staining of skin biopsies showed that skin integrity was preserved in t-AUCB-treated mice. Finally, for pig ear skin, a surrogate for human skin, using Franz diffusion cells, we observed a continuous diffusion of t-AUCB from 2 h after application to beyond 24 h. A single topical administration of a soluble epoxide hydrolase inhibitor improves microcirculatory function in the skin of db/db mice and might represent a new therapeutic approach for preventing the development of skin complications in diabetic patients.
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Affiliation(s)
- Yann Savina
- Université Grenoble Alpes, HP2 UMR INSERM 1042, F-38000, Grenoble, France
- CHU Grenoble Alpes, Pôle Recherche, INSERM CIC1406, F-38000, Grenoble, France
| | - Thomas Duflot
- Department of Pharmacology, Rouen University Hospital, F-76000 Rouen, France
- Laboratory of Pharmacokinetics, Toxicology and Pharmacogenetics, Rouen University Hospital, 76000 Rouen, France
- Normandie Univ, UNIROUEN, INSERM U1096, FHU REMOD-VHF, F-76000 Rouen, France
| | - Frederic Bounoure
- Department of Galenic, Normandy University, UNIROUEN, F-76000 Rouen, France
- INSERM U1239 Normandy University, UNIROUEN, F-76000 Rouen, France
| | - Sylvain Kotzki
- Université Grenoble Alpes, HP2 UMR INSERM 1042, F-38000, Grenoble, France
- CHU Grenoble Alpes, Pôle Recherche, INSERM CIC1406, F-38000, Grenoble, France
| | | | - Pierre-Alex Serreau
- Department of Pharmacology, Rouen University Hospital, F-76000 Rouen, France
- Department of Galenic, Normandy University, UNIROUEN, F-76000 Rouen, France
| | - Mohamed Skiba
- Department of Galenic, Normandy University, UNIROUEN, F-76000 Rouen, France
- INSERM U1239 Normandy University, UNIROUEN, F-76000 Rouen, France
| | | | - Marie Cornic
- Department of Pathology, Henri Becquerel Center, F-76000 Rouen, France
| | | | - Bruce Hammock
- Department of Entomology and Cancer Center, University of California, Davis, CA
| | - Laurent Imbert
- Department of Pharmacology, Rouen University Hospital, F-76000 Rouen, France
- Laboratory of Pharmacokinetics, Toxicology and Pharmacogenetics, Rouen University Hospital, 76000 Rouen, France
- Laboratory of Pharmacokinetics, Toxicology and Pharmacogenetics, Rouen University Hospital, 76000 Rouen, France
| | - Jean-Luc Cracowski
- Université Grenoble Alpes, HP2 UMR INSERM 1042, F-38000, Grenoble, France
- CHU Grenoble Alpes, Pôle Recherche, INSERM CIC1406, F-38000, Grenoble, France
| | - Vincent Richard
- Department of Pharmacology, Rouen University Hospital, F-76000 Rouen, France
- Normandie Univ, UNIROUEN, INSERM U1096, FHU REMOD-VHF, F-76000 Rouen, France
| | - Matthieu Roustit
- Université Grenoble Alpes, HP2 UMR INSERM 1042, F-38000, Grenoble, France
- CHU Grenoble Alpes, Pôle Recherche, INSERM CIC1406, F-38000, Grenoble, France
| | - Jeremy Bellien
- Department of Pharmacology, Rouen University Hospital, F-76000 Rouen, France
- Normandie Univ, UNIROUEN, INSERM U1096, FHU REMOD-VHF, F-76000 Rouen, France
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10
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Cheng Y, Rong J. Pro-resolving lipid mediators as therapeutic leads for cardiovascular diseases. Expert Opin Ther Targets 2019; 23:423-436. [DOI: 10.1080/14728222.2019.1599360] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yuanyuan Cheng
- School of Pharmaceutical Sciences, Guangzhou Univ Chinese Med, Guangzhou, China
| | - Jianhui Rong
- School of Chinese Medicine, The University of Hong Kong, Hong Kong, China
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11
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Aoki M, Matsumoto NM, Okubo Y, Ogawa R. Cytochrome P450 genes play central roles in transcriptional response by keratinocytes to a high-voltage alternating current electric field. Bioelectrochemistry 2019; 126:163-171. [DOI: 10.1016/j.bioelechem.2018.11.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 11/29/2018] [Accepted: 11/30/2018] [Indexed: 01/01/2023]
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12
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Sommer K, Jakob H, Badjlan F, Henrich D, Frank J, Marzi I, Sander AL. 11,12 and 14,15 epoxyeicosatrienoic acid rescue deteriorated wound healing in ischemia. PLoS One 2019; 14:e0209158. [PMID: 30650075 PMCID: PMC6335021 DOI: 10.1371/journal.pone.0209158] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 12/02/2018] [Indexed: 11/24/2022] Open
Abstract
Introduction Epoxyeicosatrienoic acids (EETs) are able to enhance angiogenesis and regulate inflammation that is especially important in wound healing under ischemic conditions. Thus, we evaluated the effect of local EET application on ischemic wounds in mice. Methods Ischemia was induced by cautherization of two of the three supplying vessels to the mouse ear. Wounding was performed on the ear three days later. Wounds were treated either with 11,12 or 14,15 EET and compared to untreated control and normal wounds. Epithelialization was measured every second day. VEGF, TNF-α, TGF-β, matrix metalloproteinases (MMP), tissue inhibitors of metalloproteinases (TIMP), Ki67, and SDF-1α were evaluated immunohistochemically in wounds on day 3, 6, and 9. Results Ischemia delayed wound closure (12.8 days ± 1.9 standard deviation (SD) for ischemia and 8.0 days ± 0.94 SD for control). 11,12 and14,15 EET application ameliorated deteriorated wound healing on ischemic ears (7.6 ± 1.3 SD for 11,12 EET and 9.2 ± 1.4 SD for 14,15 EET). Ischemia did not change VEGF, TNF-α, TGF-β, SDF-1α, TIMP, MMP7 or MMP9 level significantly compared to control. Local application of 11,12 as well as 14,15 EET induced a significant elevation of VEGF, TGF-β, and SDF-1α expression as well as proliferation during the whole phase of wound healing compared to control and ischemia alone. Conclusion In summary, EET improve impaired wound healing caused by ischemia as they enhance neovascularization and alter inflammatory response in wounds. Thus elevating lipid mediator level as 11,12 and 14,15 EET in wounds might be a successful strategy for amelioration of deranged wound healing under ischemia.
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Affiliation(s)
- Katharina Sommer
- Department of Trauma, Hand and Reconstructive Surgery, Hospital of the Johann Wolfgang Goethe-University, Frankfurt am Main, Germany
- * E-mail:
| | - Heike Jakob
- Department of Trauma, Hand and Reconstructive Surgery, Marienhausklinik St. Josef Kohlhof, Neunkirchen, Germany
| | - Farsin Badjlan
- Department of Trauma, Hand and Reconstructive Surgery, Hospital of the Johann Wolfgang Goethe-University, Frankfurt am Main, Germany
| | - Dirk Henrich
- Department of Trauma, Hand and Reconstructive Surgery, Hospital of the Johann Wolfgang Goethe-University, Frankfurt am Main, Germany
| | - Johannes Frank
- Department of Trauma, Hand and Reconstructive Surgery, Hospital of the Johann Wolfgang Goethe-University, Frankfurt am Main, Germany
| | - Ingo Marzi
- Department of Trauma, Hand and Reconstructive Surgery, Hospital of the Johann Wolfgang Goethe-University, Frankfurt am Main, Germany
| | - Anna Lena Sander
- Department of Trauma, Hand and Reconstructive Surgery, Hospital of the Johann Wolfgang Goethe-University, Frankfurt am Main, Germany
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Proinflammatory enzyme soluble epoxide hydrolase bridges obesity to colonic inflammation and potential carcinogenesis. Proc Natl Acad Sci U S A 2018; 115:5827-5828. [PMID: 29769328 DOI: 10.1073/pnas.1807520115] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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Wound Healing and Omega-6 Fatty Acids: From Inflammation to Repair. Mediators Inflamm 2018; 2018:2503950. [PMID: 29849484 PMCID: PMC5925018 DOI: 10.1155/2018/2503950] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 03/08/2018] [Indexed: 12/25/2022] Open
Abstract
Wound healing is an evolutionarily conserved process that is essential for species survival. Wound healing involves a series of biochemical and cellular events that are tightly controlled, divided into 3 concomitant and overlapping phases: inflammation, proliferation, and remodelling. Poor wound healing or a chronic wound represents a silent epidemic that affects billions of people worldwide. Considering the involvement of immune cells in its resolution, recent studies are focused on investigating the roles of immune nutrients such as amino acids, minerals, and fatty acids on wound healing. Among the fatty acids, much attention has been given to omega-6 (ω-6) fatty acids since they can modulate cell migration and proliferation, phagocytic capacity, and production of inflammatory mediators. The present review summarizes current knowledge about the role of ω-6 fatty acids in the wound healing context.
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15
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Li J, Guan H, Liu H, Zhao L, Li L, Zhang Y, Tan P, Mi B, Li F. Epoxyeicosanoids prevent intervertebral disc degeneration in vitro and in vivo. Oncotarget 2018; 8:3781-3797. [PMID: 28052015 PMCID: PMC5354795 DOI: 10.18632/oncotarget.14389] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 12/16/2016] [Indexed: 12/27/2022] Open
Abstract
Intervertebral disc (IVD) degeneration is considered a common cause of low back pain. In the degenerating IVD, the production of pro-inflammatory cytokines, including IL-1 and TNF-α, progressively increases, contributing to the degenerative process. Epoxyeicosatrienoic acids (EETs), synthesized from arachidonic acid by cytochrome P450 enzymes, act as autocrine and paracrine effectors in regulating inflammation, cardiovascular functions, and angiogenesis. EETs were shown to be especially potent promoters of tissue regeneration. Considering their anti-inflammatory and anti-catabolic potential, we investigated whether EETs can influence IVD degeneration. We found that 14,15-EET protected rat nucleus pulposus (NP) cells against death induced by treatment with H2O2and TNF-α in vitro. At the molecular level, 14,15-EET significantly inhibited the NF-κB pathway, which plays essential roles in the degeneration and survival of NP cells. As a result, 14,15-EET efficiently prevented the matrix remodeling response of NP cells to TNF-α. Using a needle-punctured rat tail model, the influence of 14,15-EET on IVD degeneration in vivo was evaluated using radiographs, magnetic resonance images (MRI), and histological analysis. We observed that 14,15-EET prevented IVD degeneration. Our findings demonstrated that 14,15-EET can enhance the survival of NP cells and inhibit IVD degeneration. The EET pathway may be a novel therapeutic target against IVD degeneration.
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Affiliation(s)
- Jing Li
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hanfeng Guan
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Huiyong Liu
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Libo Zhao
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Li Li
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yong Zhang
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Peng Tan
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Baoguo Mi
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Feng Li
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Wagner KM, McReynolds CB, Schmidt WK, Hammock BD. Soluble epoxide hydrolase as a therapeutic target for pain, inflammatory and neurodegenerative diseases. Pharmacol Ther 2017; 180:62-76. [PMID: 28642117 PMCID: PMC5677555 DOI: 10.1016/j.pharmthera.2017.06.006] [Citation(s) in RCA: 168] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Eicosanoids are biologically active lipid signaling molecules derived from polyunsaturated fatty acids. Many of the actions of eicosanoid metabolites formed by cyclooxygenase and lipoxygenase enzymes have been characterized, however, the epoxy-fatty acids (EpFAs) formed by cytochrome P450 enzymes are newly described by comparison. The EpFA metabolites modulate a diverse set of physiologic functions that include inflammation and nociception among others. Regulation of EpFAs occurs primarily via release, biosynthesis and enzymatic transformation by the soluble epoxide hydrolase (sEH). Targeting sEH with small molecule inhibitors has enabled observation of the biological activity of the EpFAs in vivo in animal models, greatly contributing to the overall understanding of their role in the inflammatory response. Their role in modulating inflammation has been demonstrated in disease models including cardiovascular pathology and inflammatory pain, but extends to neuroinflammation and neuroinflammatory disease. Moreover, while EpFAs demonstrate activity against inflammatory pain, interestingly, this action extends to blocking chronic neuropathic pain as well. This review outlines the role of modulating sEH and the biological action of EpFAs in models of pain and inflammatory diseases.
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Affiliation(s)
- Karen M Wagner
- Department of Entomology and Nematology and UC Davis Comprehensive Cancer Center, University of California Davis, Davis, CA 95616, United States
| | - Cindy B McReynolds
- Department of Entomology and Nematology and UC Davis Comprehensive Cancer Center, University of California Davis, Davis, CA 95616, United States
| | | | - Bruce D Hammock
- Department of Entomology and Nematology and UC Davis Comprehensive Cancer Center, University of California Davis, Davis, CA 95616, United States.
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Role of the CYP3A4-mediated 11,12-epoxyeicosatrienoic acid pathway in the development of tamoxifen-resistant breast cancer. Oncotarget 2017; 8:71054-71069. [PMID: 29050342 PMCID: PMC5642617 DOI: 10.18632/oncotarget.20329] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 06/27/2017] [Indexed: 11/25/2022] Open
Abstract
Epoxyeicosatrienoic acid (EET) production via cytochrome P450 (CYP) epoxygenases closely correlates with the progression of breast cancer. However, its role in the development of chemoresistant breast cancers has yet to be elucidated. Here, we found that CYP3A4 expression and its epoxy-product, 11,12-epoxyeicosatrienoic acid (11,12-EET) was enhanced in tamoxifen (TAM)-resistant MCF-7 (TAMR-MCF-7) breast cancer cells compared to control MCF-7 cells. Treatment of TAMR-MCF-7 cells with ketoconazole and azamulin (selective CYP3A4 inhibitors) or 14,15-epoxyeicosa-5(Z)-enoic acid (14,15-EEZE, an EET antagonist) inhibited cellular proliferation and recovered the sensitivity to 4-hydroxytamoxifen. Chick chorioallantoic membrane and trans-well migration analyses revealed that the enhanced angiogenic, tumorigenic, and migration intensities of TAMR-MCF-7 cells were also significantly suppressed by ketoconazole and 14,15-EEZE. We previously reported that Pin1, a peptidyl prolyl isomerase, is a crucial regulator for higher angiogenesis and epithelial-mesenchymal transition characteristics of TAMR-MCF-7 cells. EET inhibition suppressed E2F1-dependent Pin1 gene transcription, and Pin1 silencing also blocked cell proliferation, angiogenesis, and migration of TAMR-MCF-7 cells. Our findings suggest that the CYP3A4-mediated EET pathway represents a potential therapeutic target for the treatment of tamoxifen-resistant breast cancer.
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Cytochrome P450 (CYP) epoxygenases as potential targets in the management of impaired diabetic wound healing. J Transl Med 2017; 97:782-791. [PMID: 28319086 DOI: 10.1038/labinvest.2017.21] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Revised: 12/28/2016] [Accepted: 01/26/2017] [Indexed: 01/01/2023] Open
Abstract
Epoxyeicosatrienoic acids (EETs) are the epoxidation products of arachidonic acid catalyzed by cytochrome P450 (CYP) epoxygenases, which possess multiple biological activities. In the present study, we aimed to explore the role and effects of CYP epoxygenases/EETs in wound healing in ob/ob mice. Full-thickness skin dorsal wounds were made on ob/ob mice and C57BL/6 control mice. The mRNA and protein expression of CYP epoxygenases were determined in granulation tissues of wounds. Effects of EETs on wound healing were evaluated. Inflammation and angiogenesis in wounds were also observed. Compared with C57BL/6 mice, the mRNA and protein expression of CYP2C65 and CYP2J6 in the granulation tissues in ob/ob mice were significantly reduced. 11,12-EET treatment significantly improved wound healing in ob/ob mice, whereas 14,15-EEZE, an EET antagonist, showed the opposite effect. 11,12-EET treatment decreased neutrophil and macrophage infiltration to the wound sites, resulting in reduced production of inflammatory cytokines, decreased MMP-9 expression, and increased collagen accumulation in the granulation tissues of ob/ob mice. In addition, 11,12-EET increased angiogenesis in the granulation tissues of wounds in ob/ob mice. These findings indicate that reduced expression of CYP epoxygenases may contribute to impaired diabetic wound healing, and exogenous EETs may improve diabetic wound healing by modulating inflammation and angiogenesis.
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Supp DM, Hahn JM, McFarland KL, Combs KA, Lee KSS, Inceoglu B, Wan D, Boyce ST, Hammock BD. Soluble Epoxide Hydrolase Inhibition and Epoxyeicosatrienoic Acid Treatment Improve Vascularization of Engineered Skin Substitutes. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2016; 4:e1151. [PMID: 28293507 PMCID: PMC5222652 DOI: 10.1097/gox.0000000000001151] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 10/07/2016] [Indexed: 11/25/2022]
Abstract
BACKGROUND Autologous engineered skin substitutes comprised of keratinocytes, fibroblasts, and biopolymers can serve as an adjunctive treatment for excised burns. However, engineered skin lacks a vascular plexus at the time of grafting, leading to slower vascularization and reduced rates of engraftment compared with autograft. Hypothetically, vascularization of engineered skin grafts can be improved by treatment with proangiogenic agents at the time of grafting. Epoxyeicosatrienoic acids (EETs) are cytochrome P450 metabolites of arachidonic acid that are inactivated by soluble epoxide hydrolase (sEH). EETs have multiple biological activities and have been shown to promote angiogenesis. Inhibitors of sEH (sEHIs) represent attractive therapeutic agents because they increase endogenous EET levels. We investigated sEHI administration, alone or combined with EET treatment, for improved vascularization of engineered skin after grafting to mice. METHODS Engineered skin substitutes, prepared using primary human fibroblasts and keratinocytes, were grafted to full-thickness surgical wounds in immunodeficient mice. Mice were treated with the sEHI 1-trifluoromethoxyphenyl-3-(1-propionylpiperidin-4-yl) urea (TPPU), which was administered in drinking water throughout the study period, with or without topical EET treatment, and were compared with vehicle-treated controls. Vascularization was quantified by image analysis of CD31-positive areas in tissue sections. RESULTS At 2 weeks after grafting, significantly increased vascularization was observed in the TPPU and TPPU + EET groups compared with controls, with no evidence of toxicity. CONCLUSIONS The results suggest that sEH inhibition can increase vascularization of engineered skin grafts after transplantation, which may contribute to enhanced engraftment and improved treatment of full-thickness wounds.
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Affiliation(s)
- Dorothy M. Supp
- From the Research Department, Shriners Hospitals for Children – Cincinnati, Cincinnati, Ohio; Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio; and Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California at Davis, Davis, Calif
| | - Jennifer M. Hahn
- From the Research Department, Shriners Hospitals for Children – Cincinnati, Cincinnati, Ohio; Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio; and Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California at Davis, Davis, Calif
| | - Kevin L. McFarland
- From the Research Department, Shriners Hospitals for Children – Cincinnati, Cincinnati, Ohio; Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio; and Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California at Davis, Davis, Calif
| | - Kelly A. Combs
- From the Research Department, Shriners Hospitals for Children – Cincinnati, Cincinnati, Ohio; Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio; and Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California at Davis, Davis, Calif
| | - Kin Sing Stephen Lee
- From the Research Department, Shriners Hospitals for Children – Cincinnati, Cincinnati, Ohio; Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio; and Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California at Davis, Davis, Calif
| | - Bora Inceoglu
- From the Research Department, Shriners Hospitals for Children – Cincinnati, Cincinnati, Ohio; Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio; and Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California at Davis, Davis, Calif
| | - Debin Wan
- From the Research Department, Shriners Hospitals for Children – Cincinnati, Cincinnati, Ohio; Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio; and Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California at Davis, Davis, Calif
| | - Steven T. Boyce
- From the Research Department, Shriners Hospitals for Children – Cincinnati, Cincinnati, Ohio; Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio; and Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California at Davis, Davis, Calif
| | - Bruce D. Hammock
- From the Research Department, Shriners Hospitals for Children – Cincinnati, Cincinnati, Ohio; Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio; and Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California at Davis, Davis, Calif
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Berry E, Liu Y, Chen L, Guo AM. Eicosanoids: Emerging contributors in stem cell-mediated wound healing. Prostaglandins Other Lipid Mediat 2016; 132:17-24. [PMID: 27825971 DOI: 10.1016/j.prostaglandins.2016.11.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 09/29/2016] [Accepted: 11/03/2016] [Indexed: 12/16/2022]
Abstract
Eicosanoids are bioactive lipid products primarily derived from the oxidation of arachidonic acid (AA). The individual contributions of eicosanoids and stem cells to wound healing have been of great interest. This review focuses on how stem cells work in concert with eicosanoids to create a beneficial environment in the wound bed and in the promotion of wound healing. Stem cells contribute to wound healing through modulating inflammation, differentiating into skin cells or endothelial cells, and exerting paracrine effects by releasing various potent growth factors. Eicosanoids have been shown to stimulate proliferation, migration, homing, and differentiation of stem cells, all of which contribute to the process of wound healing. Increasing evidence has shown that eicosanoids improve wound healing through increasing stem cell densities, stimulating differentiation, and enhancing the angiogenic properties of stem cells. Chronic wounds have become a major problem in health care. Therefore, research regarding the effects of stem cells and eicosanoids in the promotion wound healing is of great importance.
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Affiliation(s)
- Elizabeth Berry
- Department of Pharmacology, School of Medicine, New York Medical College, Valhalla, NY 10595 United States
| | - Yanzhou Liu
- Department of Pharmacology, School of Medicine, New York Medical College, Valhalla, NY 10595 United States; Department of Pharmacology, School of Medicine, Wuhan University, Wuhan, 430071, People's Republic of China
| | - Li Chen
- State Key Lab of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, People's Republic of China
| | - Austin M Guo
- Department of Pharmacology, School of Medicine, New York Medical College, Valhalla, NY 10595 United States; Department of Pharmacology, School of Medicine, Wuhan University, Wuhan, 430071, People's Republic of China.
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21
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Gong Y, Shao Z, Fu Z, Edin ML, Sun Y, Liegl RG, Wang Z, Liu CH, Burnim SB, Meng SS, Lih FB, SanGiovanni JP, Zeldin DC, Hellström A, Smith LEH. Fenofibrate Inhibits Cytochrome P450 Epoxygenase 2C Activity to Suppress Pathological Ocular Angiogenesis. EBioMedicine 2016; 13:201-211. [PMID: 27720395 PMCID: PMC5264653 DOI: 10.1016/j.ebiom.2016.09.025] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 09/23/2016] [Accepted: 09/28/2016] [Indexed: 12/19/2022] Open
Abstract
Neovascular eye diseases including retinopathy of prematurity, diabetic retinopathy and age-related-macular-degeneration are major causes of blindness. Fenofibrate treatment in type 2 diabetes patients reduces progression of diabetic retinopathy independent of its peroxisome proliferator-activated receptor (PPAR)α agonist lipid lowering effect. The mechanism is unknown. Fenofibrate binds to and inhibits cytochrome P450 epoxygenase (CYP)2C with higher affinity than to PPARα. CYP2C metabolizes ω-3 long-chain polyunsaturated fatty acids (LCPUFAs). While ω-3 LCPUFA products from other metabolizing pathways decrease retinal and choroidal neovascularization, CYP2C products of both ω-3 and ω-6 LCPUFAs promote angiogenesis. We hypothesized that fenofibrate inhibits retinopathy by reducing CYP2C ω-3 LCPUFA (and ω-6 LCPUFA) pro-angiogenic metabolites. Fenofibrate reduced retinal and choroidal neovascularization in PPARα-/-mice and augmented ω-3 LCPUFA protection via CYP2C inhibition. Fenofibrate suppressed retinal and choroidal neovascularization in mice overexpressing human CYP2C8 in endothelial cells and reduced plasma levels of the pro-angiogenic ω-3 LCPUFA CYP2C8 product, 19,20-epoxydocosapentaenoic acid. 19,20-epoxydocosapentaenoic acid reversed fenofibrate-induced suppression of angiogenesis ex vivo and suppression of endothelial cell functions in vitro. In summary fenofibrate suppressed retinal and choroidal neovascularization via CYP2C inhibition as well as by acting as an agonist of PPARα. Fenofibrate augmented the overall protective effects of ω-3 LCPUFAs on neovascular eye diseases. Fenofibrate inhibits retinal and choroidal neovascularization by inhibiting CYP2C activity as well as by activating PPARα. Fenofibrate augments the protective effects of ω-3 LCPUFAs on pathological ocular angiogenesis. Inhibition of CYP2C is a potential therapeutic approach for treatment of proliferative retinopathy and neovascular AMD.
Findings from clinical trials indicate that fenofibrate reduces the progression of proliferative diabetic retinopathy, but the mechanism of this effect is currently unknown. Dietary intake of ω-3 long-chain polyunsaturated fatty acids (LCPUFAs) is generally associated with a suppression of proliferative retinopathy and age-related macular degeneration acting through LCPUFA cyclooxygenase and lipoxygenase metabolites. However, cytochrome P450 epoxygenase (CYP)2C ω-3 and ω-6 LCPUFA metabolites promote retinopathy. Fenofibrate is a potent inhibitor of CYP2C. Our findings suggested that fenofibrate suppressed retinal and choroidal neovascularization via CYP2C inhibition. Combination therapy of dietary ω-3 LCPUFA supplementation with fenofibrate may be a promising approach to prevent incidence or progression of neovascular eye diseases.
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Affiliation(s)
- Yan Gong
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Zhuo Shao
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Zhongjie Fu
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Matthew L Edin
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, United States
| | - Ye Sun
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Raffael G Liegl
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Zhongxiao Wang
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Chi-Hsiu Liu
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Samuel B Burnim
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Steven S Meng
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States
| | - Fred B Lih
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, United States
| | - John Paul SanGiovanni
- Section on Nutritional Neurosciences, Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892, United States
| | - Darryl C Zeldin
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, United States
| | - Ann Hellström
- Department of Ophthalmology, Sahlgrenska Academy at University of Gothenburg, Gothenburg 40530, Sweden
| | - Lois E H Smith
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 01248, United States.
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Genetic deletion of soluble epoxide hydrolase attenuates inflammation and fibrosis in experimental obstructive nephropathy. Mediators Inflamm 2015; 2015:693260. [PMID: 25688176 PMCID: PMC4320902 DOI: 10.1155/2015/693260] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 11/28/2014] [Accepted: 12/07/2014] [Indexed: 02/07/2023] Open
Abstract
Soluble epoxide hydrolase (sEH) is abundantly expressed in kidney and plays a potent role in regulating inflammatory response in inflammatory diseases. However, the role of sEH in progression of chronic kidney diseases such as obstructive nephropathy is still elusive. In current study, wild-type (WT) and sEH deficient (sEH (-/-)) mice were subjected to the unilateral ureteral obstruction (UUO) surgery and the kidney injury was evaluated by histological examination, western blotting, and ELISA. The protein level of sEH in kidney was increased in UUO-treated mice group compared to nonobstructed group. Additionally, UUO-induced hydronephrosis, renal tubular injury, inflammation, and fibrosis were ameliorated in sEH (-/-) mice with the exception of glomerulosclerosis. Moreover, sEH (-/-) mice with UUO showed lower levels of inflammation-related and fibrosis-related protein such as monocyte chemoattractant protein-1, macrophage inflammatory protein-2, interleukin-1β (IL-1β), IL-6, inducible nitric oxide synthase, collagen 1A1, and α-actin. The levels of superoxide anion radical and hydrogen peroxide as well as NADPH oxidase activity were also decreased in UUO kidneys of sEH (-/-) mice compared to that observed in WT mice. Collectively, our findings suggest that sEH plays an important role in the pathogenesis of experimental obstructive nephropathy and may be a therapeutic target for the treatment of obstructive nephropathy-related diseases.
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Hwang SH, Wecksler AT, Zhang G, Morisseau C, Nguyen LV, Fu SH, Hammock BD. Synthesis and biological evaluation of sorafenib- and regorafenib-like sEH inhibitors. Bioorg Med Chem Lett 2013; 23:3732-7. [PMID: 23726028 DOI: 10.1016/j.bmcl.2013.05.011] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 04/28/2013] [Accepted: 05/06/2013] [Indexed: 12/23/2022]
Abstract
To reduce the pro-angiogenic effects of sEH inhibition, a structure-activity relationship (SAR) study was performed by incorporating structural features of the anti-angiogenic multi-kinase inhibitor sorafenib into soluble epoxide hydrolase (sEH) inhibitors. The structural modifications of this series of molecules enabled the altering of selectivity towards the pro-angiogenic kinases C-RAF and vascular endothelial growth factor receptor-2 (VEGFR-2), while retaining their sEH inhibition. As a result, sEH inhibitors with greater potency against C-RAF and VEGFR-2 were obtained. Compound 4 (t-CUPM) possesses inhibition potency higher than sorafenib towards sEH but similar against C-RAF and VEGFR-2. Compound 7 (t-CUCB) selectively inhibits sEH, while inhibiting HUVEC cell proliferation, a potential anti-angiogenic property, without liver cancer cell cytotoxicity. The data presented suggest a potential rational approach to control the angiogenic responses stemming from sEH inhibition.
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Affiliation(s)
- Sung Hee Hwang
- Department of Entomology and UC Davis Comprehensive Cancer Center, University of California, Davis, One Shields Avenue, Davis, CA 95616-8584, USA
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