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Ebright B, Yu Z, Dave P, Dikeman D, Hamm-Alvarez S, de Paiva CS, Louie S. Effects of age on lacrimal gland bioactive lipids. Ocul Surf 2024; 33:64-73. [PMID: 38705236 DOI: 10.1016/j.jtos.2024.04.008] [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: 02/24/2024] [Revised: 04/26/2024] [Accepted: 04/30/2024] [Indexed: 05/07/2024]
Abstract
PURPOSE Polyunsaturated fatty acids (PUFA) are a source of bioactive lipids regulating inflammation and its resolution. METHODS Changes in PUFA metabolism were compared between lacrimal glands (LGs) from young and aged C57BL/6 J mice using a targeted lipidomics assay, as was the gene expression of enzymes involved in the metabolism of these lipids. RESULTS Global reduction in PUFAs and their metabolites was observed in aged LGs compared to young controls, averaging between 25 and 66 % across all analytes. ꞷ-6 arachidonic acid (AA) metabolites were all reduced in aged LGs, where the changes in prostaglandin E2 (PGE2) and lipoxin A4 (LXA4) were statistically significant. Several other 5-lipoxygenase (5-LOX) mediated metabolites were significantly reduced in the aged LGs, including D-series resolvins (e.g., RvD4, RvD5, and RvD6). Along with the RvDs, several ꞷ-3 docosahexaenoic acid (DHA) metabolites such as 14-HDHA, neuroprotectin D1 (NPD1), Maresin 2 (MaR2), and MaR 1 metabolite (22-COOH-MaR1) were significantly reduced in aged LGs. Similarly, ꞷ-3 eicosapentaenoic acid (EPA) and its metabolites were significantly reduced in aged LGs, where the most significantly reduced was 18-HEPE. Using metabolite ratios (product:precursor) for specific metabolic conversions as surrogate enzymatic measures, reduced 12-LOX activity was identified in aged LGs. CONCLUSION In this study, global reduction of PUFAs and their metabolites was found in the LGs of aged female C57BL/6 J compared to young controls. A consistent reduction was observed across all detected lipid analytes except for ꞷ-3 docosapentaenoic acid (DPA) and its special pro-resolving mediator (SPM) metabolites in aged mice, suggesting an increased risk for LG inflammation.
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Affiliation(s)
- Brandon Ebright
- Department of Clinical Pharmacy, Alfred Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, United States, 90089-9121, USA.
| | - Zhiyuan Yu
- Department of Ophthalmology, Baylor College of Medicine, Houston, TX, USA.
| | - Priyal Dave
- Department of Clinical Pharmacy, Alfred Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, United States, 90089-9121, USA.
| | - Dante Dikeman
- Department of Clinical Pharmacy, Alfred Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, United States, 90089-9121, USA.
| | - Sarah Hamm-Alvarez
- Department of Ophthalmology, Baylor College of Medicine, Houston, TX, USA; Department of Pharmaceutical Sciences, Alfred Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, USA; Department of Ophthalmology, Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
| | - Cintia S de Paiva
- Department of Ophthalmology, Baylor College of Medicine, Houston, TX, USA.
| | - Stan Louie
- Department of Clinical Pharmacy, Alfred Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, United States, 90089-9121, USA.
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Panigrahy D, Kelly AG, Wang W, Yang J, Hwang SH, Gillespie M, Howard I, Bueno-Beti C, Asimaki A, Penna V, Lavine K, Edin ML, Zeldin DC, Hammock BD, Saffitz JE. Inhibition of Soluble Epoxide Hydrolase Reduces Inflammation and Myocardial Injury in Arrhythmogenic Cardiomyopathy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.17.580812. [PMID: 38463975 PMCID: PMC10925075 DOI: 10.1101/2024.02.17.580812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Previous studies have implicated persistent innate immune signaling in the pathogenesis of arrhythmogenic cardiomyopathy (ACM), a familial non-ischemic heart muscle disease characterized by life-threatening arrhythmias and progressive myocardial injury. Here, we provide new evidence implicating inflammatory lipid autocoids in ACM. We show that specialized pro-resolving lipid mediators are reduced in hearts of Dsg2mut/mut mice, a well characterized mouse model of ACM. We also found that ACM disease features can be reversed in rat ventricular myocytes expressing mutant JUP by the pro-resolving epoxy fatty acid (EpFA) 14,15-eicosatrienoic acid (14-15-EET), whereas 14,15-EE-5(Z)E which antagonizes actions of the putative 14,15-EET receptor, intensified nuclear accumulation of the desmosomal protein plakoglobin. Soluble epoxide hydrolase (sEH), an enzyme that rapidly converts pro-resolving EpFAs into polar, far less active or even pro-inflammatory diols, is highly expressed in cardiac myocytes in Dsg2mut/mut mice. Inhibition of sEH prevented progression of myocardial injury in Dsg2mut/mut mice and led to recovery of contractile function. This was associated with reduced myocardial expression of genes involved in the innate immune response and fewer pro-inflammatory macrophages expressing CCR2, which mediate myocardial injury in Dsg2mut/mut mice. These results suggest that pro-inflammatory eicosanoids contribute to the pathogenesis of ACM and, further, that inhibition of sEH may be an effective, mechanism-based therapy for ACM patients.
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Affiliation(s)
- Dipak Panigrahy
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA
| | - Abigail G. Kelly
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA
| | - Weicang Wang
- Department of Entomology and Nematology and UC-Davis Comprehensive Cancer Center, University of California, Davis, Davis, CA
| | - Jun Yang
- Department of Entomology and Nematology and UC-Davis Comprehensive Cancer Center, University of California, Davis, Davis, CA
| | - Sung Hee Hwang
- Department of Entomology and Nematology and UC-Davis Comprehensive Cancer Center, University of California, Davis, Davis, CA
| | - Michael Gillespie
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA
| | - Isabella Howard
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA
| | - Carlos Bueno-Beti
- Cardiovascular and Genomics Research Institute, St. George’s, University of London, UK
| | - Angeliki Asimaki
- Cardiovascular and Genomics Research Institute, St. George’s, University of London, UK
| | - Vinay Penna
- Cardiovascular Division, Department of Medicine, Washington University, St. Louis, MO
| | - Kory Lavine
- Cardiovascular Division, Department of Medicine, Washington University, St. Louis, MO
| | | | | | - Bruce D. Hammock
- Department of Entomology and Nematology and UC-Davis Comprehensive Cancer Center, University of California, Davis, Davis, CA
| | - Jeffrey E. Saffitz
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA
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3
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Sun Q, Wang J, Jing Y, Liu J, Jin J, Wang S, Zhang J, Liu K, Chen X, Zhou H, Dong C. Influences of resolvin D1 and D2 on the risk of type 2 diabetes mellitus: a Chinese community-based cohort study. Front Immunol 2023; 14:1143456. [PMID: 37334388 PMCID: PMC10272361 DOI: 10.3389/fimmu.2023.1143456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 05/24/2023] [Indexed: 06/20/2023] Open
Abstract
Background Although cellular and animal studies have reported that resolvin D1 (RvD1) and resolvin D2 (RvD2) are mechanisms involved in the development of type 2 diabetes mellitus (T2DM), the impact of RvD1 and RvD2 on the risk of T2DM at a population level remains unclear. Methods We included 2755 non-diabetic adults from a community-based cohort in China and followed them for seven years. Cox proportional hazards model was used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for the association of RvD1 and RvD2 with T2DM probability. Time-dependent receiver operator characteristics (ROC) curve was used to evaluate the predictive performance of RvD1 and RvD2 for the risk of T2DM based on the Chinese CDC T2DM prediction model (CDRS). Results A total of 172 incident T2DM cases were identified. Multivariate-adjusted HRs (95% CI) for T2DM across quartiles of RvD1 levels (Q1, Q2, Q3 and Q4) were 1.00, 1.64 (1.03-2.63), 1.80 (1.13-2.86) and 1.61 (1.01-2.57), respectively. Additionally, body mass index (BMI) showed a significant effect modification in the association of RvD1 with incident T2DM (P interaction = 0.026). After multivariate adjustment, the HR (95% CI) for T2DM in the fourth compared with the first quartile of RvD2 was 1.94 (95% CI: 1.24-3.03). Time-dependent ROC analysis showed that the area under time-dependent ROC curves of the "CDRS+RvD1+RvD2" model for the 3-, 5- and 7-year risk of T2DM were 0.842, 0.835 and 0.828, respectively. Conclusions Higher RvD1 and RvD2 levels are associated with a higher risk of T2DM at the population level.
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Affiliation(s)
- Qian Sun
- Department of Epidemiology and Statistics, School of Public Health, Medical College of Soochow University, Soochow, Jiangsu, China
| | - Junrong Wang
- Department of Epidemiology and Statistics, School of Public Health, Medical College of Soochow University, Soochow, Jiangsu, China
| | - Yang Jing
- Division of Non-communicable Diseases, Suzhou Industrial Park Centers for Disease Control and Prevention, Soochow, China
| | - Jingchao Liu
- Division of Non-communicable Diseases, Suzhou Wuzhong Centers for Disease Control and Prevention, Soochow, China
| | - Jianrong Jin
- Division of Non-communicable Diseases, Suzhou Wuzhong Centers for Disease Control and Prevention, Soochow, China
| | - Sudan Wang
- Department of Epidemiology and Statistics, School of Public Health, Medical College of Soochow University, Soochow, Jiangsu, China
| | - Jin Zhang
- Department of Epidemiology and Statistics, School of Public Health, Medical College of Soochow University, Soochow, Jiangsu, China
| | - Kaili Liu
- Department of Epidemiology and Statistics, School of Public Health, Medical College of Soochow University, Soochow, Jiangsu, China
| | - Xiaofang Chen
- Division of Non-communicable Diseases, Suzhou Industrial Park Centers for Disease Control and Prevention, Soochow, China
| | - Hui Zhou
- Division of Non-communicable Diseases, Suzhou Industrial Park Centers for Disease Control and Prevention, Soochow, China
| | - Chen Dong
- Department of Epidemiology and Statistics, School of Public Health, Medical College of Soochow University, Soochow, Jiangsu, China
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Filiberto AC, Leroy V, Ladd Z, Su G, Elder CT, Pruitt EY, Lu G, Hartman J, Zarrinpar A, Garrett TJ, Sharma AK, Upchurch GR. Sex differences in specialized pro-resolving lipid mediators and their receptors in abdominal aortic aneurysms. JVS Vasc Sci 2023; 4:100107. [PMID: 37292185 PMCID: PMC10245328 DOI: 10.1016/j.jvssci.2023.100107] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 04/08/2023] [Indexed: 06/10/2023] Open
Abstract
Objective In this study, we tested the hypothesis that endogenous expression of specialized pro-resolving lipid mediators (SPMs) that facilitate the resolution of inflammation, specifically Resolvin D1and -D2, as well as Maresin1 (MaR1), can impact abdominal aortic aneurysm (AAA) formation and progression in a sex-specific manner. Methods SPM expression was quantified in aortic tissue from human AAA samples and from a murine in vivo AAA model via liquid chromatography-tandem mass spectrometry. mRNA expression for SPM receptors FPR2, LGR6, and GPR18 were quantified by real-time polymerase chain reaction. A Student t test with nonparametric Mann-Whitney or Wilcoxon test was used for pair-wise comparisons of groups. One-way analysis of variance after post hoc Tukey test was used to determine the differences among multiple comparative groups. Results Human aortic tissue analysis revealed a significant decrease in RvD1 levels in male AAAs compared with controls, whereas FPR2 and LGR6 receptor expressions were downregulated in male AAAs compared with male controls. In vivo studies of elastase-treated mice showed higher levels of RvD2 and MaR1 as well as the SPM precursors, omega-3 fatty acids DHA and EPA, in aortic tissue from males compared with females. FPR2 expression was increased in elastase-treated females compared with males. Conclusions Our findings demonstrate that specific differences in SPMs and their associated G-protein coupled receptors exist between sexes. These results indicate the relevance of SPM-mediated signaling pathways in sex differences impacting the pathogenesis of AAAs.
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Affiliation(s)
| | - Victoria Leroy
- Department of Surgery, University of Florida, Gainesville, FL
| | - Zachary Ladd
- Department of Surgery, University of Florida, Gainesville, FL
| | - Gang Su
- Department of Surgery, University of Florida, Gainesville, FL
| | - Craig T. Elder
- Department of Surgery, University of Florida, Gainesville, FL
| | - Eric Y. Pruitt
- Department of Surgery, University of Florida, Gainesville, FL
| | - Guanyi Lu
- Department of Surgery, University of Florida, Gainesville, FL
| | - Joseph Hartman
- Department of Surgery, University of Florida, Gainesville, FL
| | - Ali Zarrinpar
- Department of Surgery, University of Florida, Gainesville, FL
| | - Timothy J. Garrett
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL
| | - Ashish K. Sharma
- Department of Surgery, University of Florida, Gainesville, FL
- Aortic Disease Center, University of Florida, Gainesville, FL
| | - Gilbert R. Upchurch
- Department of Surgery, University of Florida, Gainesville, FL
- Aortic Disease Center, University of Florida, Gainesville, FL
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5
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dos Santos HT, Nam K, Gil D, Yellepeddi V, Baker OJ. Current experimental methods to investigate the impact of specialized pro-resolving lipid mediators on Sjögren's syndrome. Front Immunol 2023; 13:1094278. [PMID: 36713415 PMCID: PMC9878840 DOI: 10.3389/fimmu.2022.1094278] [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: 11/09/2022] [Accepted: 12/27/2022] [Indexed: 01/15/2023] Open
Abstract
Sjögren's syndrome is a chronic inflammatory autoimmune disease characterized by diminished secretory function of the exocrine glands. Although extensive investigation has been done to understand Sjögren's syndrome, the causes of the disease are as yet unknown and treatments remain largely ineffective, with established therapeutic interventions being limited to use of saliva substitutes with modest effectiveness. A primary feature of Sjögren's syndrome is uncontrolled inflammation of exocrine tissues and previous studies have demonstrated that lipid-based specialized pro-resolving mediators reduce inflammation and restores tissue integrity in salivary glands. However, these studies are limited to a single specialized pro-resolving lipid mediator's family member resolvin D1 or RvD1 and its aspirin-triggered epimer, AT-RvD1. Consequently, additional studies are needed to explore the potential benefits of other members of the specialized pro-resolving lipid mediator's family and related molecules (e.g., additional resolvin subtypes as well as lipoxins, maresins and protectins). In support of this goal, the current review aims to briefly describe the range of current experimental methods to investigate the impact of specialized pro-resolving lipid mediators on Sjögren's syndrome, including both strengths and weaknesses of each approach where this information is known. With this article, the possibilities presented by specialized pro-resolving lipid mediators will be introduced to a wider audience in immunology and practical advice is given to researchers who may wish to take up this work.
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Affiliation(s)
- Harim T. dos Santos
- Bond Life Sciences Center, University of Missouri, Columbia, MO, United States,Department of Otolaryngology-Head and Neck Surgery, School of Medicine, University of Missouri, Columbia, MO, United States
| | - Kihoon Nam
- Bond Life Sciences Center, University of Missouri, Columbia, MO, United States,Department of Otolaryngology-Head and Neck Surgery, School of Medicine, University of Missouri, Columbia, MO, United States
| | - Diana Gil
- Department of Surgery, School of Medicine, University of Missouri, Columbia, MO, United States,Department of Molecular Microbiology and Immunology, School of Medicine, University of Missouri, Columbia, MO, United States,Department of Biological and Biomedical Engineering, College of Engineering, University of Missouri, Columbia, MO, United States
| | - Venkata Yellepeddi
- Division of Clinical Pharmacology, Department of Pediatrics, School of Medicine, University of Utah, Salt Lake City, UT, United States,Department of Molecular Pharmaceutics, College of Pharmacy, University of Utah, Salt Lake City, UT, United States
| | - Olga J. Baker
- Bond Life Sciences Center, University of Missouri, Columbia, MO, United States,Department of Otolaryngology-Head and Neck Surgery, School of Medicine, University of Missouri, Columbia, MO, United States,Department of Biochemistry, University of Missouri, Columbia, MO, United States,*Correspondence: Olga J. Baker,
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6
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Yu S, Wang H, Liu M, Pei F, Liu H, Zhang J, Zhang L, Li Q, Chen Z. Loss of ATG5 in KRT14 + cells leads to accumulated functional impairments of salivary glands via pyroptosis. FASEB J 2022; 36:e22631. [PMID: 36342387 DOI: 10.1096/fj.202200946r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 09/23/2022] [Accepted: 10/17/2022] [Indexed: 11/09/2022]
Abstract
Macroautophagy/autophagy is critically involved in the process of salivary gland (SG) diseases such as xerostomia, which has a serious impact on quality of life. KRT14+ progenitor cells are found to be the main progenitors for maintaining the ductal homeostasis of the submandibular SGs. In this study, we investigated the role of ATG5 in SG KRT14+ cells in mice and humans. Human labial salivary glands (LSG) from primary Sjogren's syndrome (pSS) and non-pSS patients (normal), and submandibular glands (SMG) from Atg5flox/flox ; Krt14-Cre (cKO) mice were used. ATG5+ KRT14+ and p62+ KRT14+ cells were detected by immunofluorescence staining in LSG. TUNEL, immunofluorescence, immunohistochemistry, and western blot were performed to detect cell death in SMG. Saliva was collected in 12-week-old (12 W) and 32-week-old (32 W) mice, then the concentration of calcium and buffering capacity were detected to analyze the function of SG. We found that LSG from pSS patients showed increased p62 and decreased ATG5 in KRT14+ cells. We further revealed that in 32 W, (1) the function of salivary glands was significantly impaired in cKO mice, (2) cell death increased in cKO mice, but cl-Caspase 3 was not significantly changed, and (3) cleaved gasdermin D increased and was highly expressed in KRT14+ cells of cKO mice. After applying a pyroptosis inhibitor to 32 W mice, the reduced saliva flow rate was rescued. In addition, pyroptosis was also found in KRT14+ cells of pSS patients. Collectively, our results indicate that Atg5 deficiency would induce pyroptosis in mice SG, which could lead to functional impairments of SG.
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Affiliation(s)
- Siqi Yu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Haisheng Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Ming Liu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Fei Pei
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Cariology & Endodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Huan Liu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Periodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Jiali Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral Pathology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Lu Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Cariology & Endodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Qiuhui Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Zhi Chen
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Cariology & Endodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, China
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Dos Santos HT, Maslow F, Nam K, Trump B, Weisman GA, Baker OJ. A combination treatment of low-dose dexamethasone and aspirin-triggered resolvin D1 reduces Sjögren syndrome-like features in a mouse model. JADA FOUNDATIONAL SCIENCE 2022; 2:100016. [PMID: 37622089 PMCID: PMC10448398 DOI: 10.1016/j.jfscie.2022.100016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
Background Sjögren syndrome (SS) is an autoimmune disease characterized by lymphocytic infiltration and diminished secretory function of the salivary glands. Dexamethasone (DEX) resolves dry mouth and lymphocytic infiltration; however, this treatment is difficult to maintain because of multiple adverse effects (eg, osteoporosis and skin thinning); likewise, aspirin-triggered resolvin D1 (AT-RvD1) increases saliva secretion but cannot eliminate lymphocytic infiltration. Previous studies showed that a combination of low-dose DEX with AT-RvD1 before disease onset prevents SS-like features in a mouse model; however, this is not clinically practical because there are no reliable indicators of SS before disease onset. Therefore, the authors applied the combined treatment at disease onset to show its efficacy and comparative lack of adverse effects, so that it may reasonably be maintained over a patient's lifetime. Methods NOD/ShiLtJ mice were treated with ethanol (vehicle control), high-dose DEX alone, AT-RvD1 alone, or a combination of low-dose DEX with AT-RvD1 at disease onset for 8 weeks. Then saliva flow rates were measured, and submandibular glands were harvested for histologic analyses. Results A combined treatment of low-dose DEX with AT-RvD1 significantly decreased mast cell degranulation and lymphocytic infiltration, increased saliva secretion, and restored apical aquaporin-5 expression in submandibular glands of NOD/ShiLtJ mice. Conclusions Low-dose DEX combined with AT-RvD1 reduces the severity of SS-like manifestation and prevents the development of advanced and potentially irreversible damage, all in a form that can reasonably be administered indefinitely without the need to cease treatment because of secondary effects.
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Affiliation(s)
- Harim Tavares Dos Santos
- Department of Otolaryngology, Head and Neck Surgery, University of Missouri, Columbia, MO
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO
| | - Frank Maslow
- Department of Otolaryngology, Head and Neck Surgery, University of Missouri, Columbia, MO
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO
| | - Kihoon Nam
- Department of Otolaryngology, Head and Neck Surgery, University of Missouri, Columbia, MO
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO
| | - Bryan Trump
- School of Dentistry and Department of Dermatology, University of Utah, Salt Lake City, UT
| | - Gary A Weisman
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO
- Department of Biochemistry, University of Missouri, Columbia, MO
| | - Olga J Baker
- Department of Otolaryngology, Head and Neck Surgery, University of Missouri, Columbia, MO
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO
- Department of Biochemistry, University of Missouri, Columbia, MO
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8
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Annevelink CE, Walker RE, Shearer GC. Esterified Oxylipins: Do They Matter? Metabolites 2022; 12:1007. [PMID: 36355090 PMCID: PMC9697791 DOI: 10.3390/metabo12111007] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/17/2022] [Accepted: 10/19/2022] [Indexed: 10/25/2023] Open
Abstract
Oxylipins are oxygenated metabolites of fatty acids that share several similar biochemical characteristics and functions to fatty acids including transport and trafficking. Oxylipins are most commonly measured in the non-esterified form which can be found in plasma, free or bound to albumin. The non-esterified form, however, reflects only one of the possible pools of oxylipins and is by far the least abundant circulating form of oxylipins. Further, this fraction cannot reliably be extrapolated to the other, more abundant, esterified pool. In cells too, esterified oxylipins are the most abundant form, but are seldom measured and their potential roles in signaling are not well established. In this review, we examine the current literature on experimental oxylipin measurements to describe the lack in reporting the esterified oxylipin pool. We outline the metabolic and experimental importance of esterified oxylipins using well established roles of fatty acid trafficking in non-esterified fatty acids and in esterified form as components of circulating lipoproteins. Finally, we use mathematical modeling to simulate how exchange between cellular esterified and unesterified pools would affect intracellular signaling.. The explicit inclusion of esterified oxylipins along with the non-esterified pool has the potential to convey a more complete assessment of the metabolic consequences of oxylipin trafficking.
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Affiliation(s)
| | | | - Gregory C. Shearer
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA 16802, USA
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9
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Tan Z, Wang L, Li X. Composition and regulation of the immune microenvironment of salivary gland in Sjögren’s syndrome. Front Immunol 2022; 13:967304. [PMID: 36177010 PMCID: PMC9513852 DOI: 10.3389/fimmu.2022.967304] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 08/23/2022] [Indexed: 11/13/2022] Open
Abstract
Primary Sjögren’s syndrome (pSS) is a systemic autoimmune disease characterized by exocrine gland dysfunction and inflammation. Patients often have dry mouth and dry eye symptoms, which seriously affect their lives. Improving dry mouth and eye symptoms has become a common demand from patients. For this reason, researchers have conducted many studies on external secretory glands. In this paper, we summarize recent studies on the salivary glands of pSS patients from the perspective of the immune microenvironment. These studies showed that hypoxia, senescence, and chronic inflammation are the essential characteristics of the salivary gland immune microenvironment. In the SG of pSS, genes related to lymphocyte chemotaxis, antigen presentation, and lymphocyte activation are upregulated. Interferon (IFN)-related genes, DNA methylation, sRNA downregulation, and mitochondrial-related differentially expressed genes are also involved in forming the immune microenvironment of pSS, while multiple signaling pathways are involved in regulation. We further elucidated the regulation of the salivary gland immune microenvironment in pSS and relevant, targeted treatments.
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10
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Luo SD, Chiu TJ, Chen WC, Wang CS. Sex Differences in Otolaryngology: Focus on the Emerging Role of Estrogens in Inflammatory and Pro-Resolving Responses. Int J Mol Sci 2021; 22:ijms22168768. [PMID: 34445474 PMCID: PMC8395901 DOI: 10.3390/ijms22168768] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 08/09/2021] [Accepted: 08/13/2021] [Indexed: 12/02/2022] Open
Abstract
Otolaryngology (also known as ear, nose, and throat (ENT)) diseases can be significantly affected by the level of sex hormones, which indicates that sex differences affect the manifestation, pathophysiology, and outcomes of these diseases. Recently, increasing evidence has suggested that proinflammatory responses in ENT diseases are linked to the level of sex hormones. The sex hormone receptors are present on a wide variety of immune cells; therefore, it is evident that they play crucial roles in regulating the immune system and hence affect the disease progression of ENT diseases. In this review, we focus on how sex hormones, particularly estrogens, regulate ENT diseases, such as chronic rhinosinusitis, vocal fold polyps, thyroid cancer, Sjögren’s syndrome, and head and neck cancers, from the perspectives of inflammatory responses and specialized proresolving mediator-driven resolution. This paper aims to clarify why considering sex differences in the field of basic and medical research on otolaryngology is a key component to successful therapy for both males and females in the future.
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Affiliation(s)
- Sheng-Dean Luo
- Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 833, Taiwan; (S.-D.L.); (W.-C.C.)
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan;
| | - Tai-Jan Chiu
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan;
- Department of Hematology-Oncology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 833, Taiwan
| | - Wei-Chih Chen
- Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 833, Taiwan; (S.-D.L.); (W.-C.C.)
| | - Ching-Shuen Wang
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
- Correspondence: ; Tel.: +886-227-361-661 (ext. 5166)
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11
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de Paiva CS, Trujillo-Vargas CM, Schaefer L, Yu Z, Britton RA, Pflugfelder SC. Differentially Expressed Gene Pathways in the Conjunctiva of Sjögren Syndrome Keratoconjunctivitis Sicca. Front Immunol 2021; 12:702755. [PMID: 34349764 PMCID: PMC8326832 DOI: 10.3389/fimmu.2021.702755] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 07/01/2021] [Indexed: 12/24/2022] Open
Abstract
Sjögren syndrome (SS) is an autoimmune condition that targets the salivary and lacrimal glands, with cardinal clinical signs of dry eye (keratoconjunctivitis sicca, KCS) and dry mouth. The conjunctiva of SS patients is often infiltrated by immune cells that participate in the induction and maintenance of local inflammation. The purpose of this study was to investigate immune-related molecular pathways activated in the conjunctiva of SS patients. Female SS patients (n=7) and controls (n=19) completed a series of oral, ocular surface exams. Symptom severity scores were evaluated using validated questionnaires (OSDI and SANDE). All patients fulfilled the ACR/EULAR criteria for SS and the criteria for KCS. Fluorescein and lissamine green dye staining evaluated tear-break-up time (TBUT), corneal and conjunctival disease, respectively. Impression cytology of the temporal bulbar conjunctiva was performed to collect cells lysed and subjected to gene expression analysis using the NanoString Immunology Panel. 53/594 differentially expressed genes (DEGs) were observed between SS and healthy controls; 49 DEGs were upregulated, and 4 were downregulated (TRAF5, TGFBI, KLRAP1, and CMKLRI). The top 10 DEGs in descending order were BST2, IFITM1, LAMP3, CXCL1, IL19, CFB, LY96, MX1, IL4R, CDKN1A. Twenty pathways had a global significance score greater or equal to 2. Spearman correlations showed that 29/49 upregulated DEGs correlated with either TBUT (inverse) or OSDI or conjunctival staining score (positive correlations). Venn diagrams identified that 26/29 DEGs correlated with TBUT, 5/26 DEGs correlated with OSDI, and 16/26 correlated with conjunctival staining scores. Five upregulated DEGs (CFB, CFI, IL1R1, IL2RG, IL4R) were uniquely negatively correlated with TBUT. These data indicate that the conjunctiva of SS patients exhibits a phenotype of immune activation, although some genes could be inhibitory. Some of the DEGs and pathways overlap with previous DEGs in salivary gland biopsies, but new DEGs were identified, and some of these correlated with symptoms and signs of dry eye. Our results indicate that gene analysis of conjunctiva imprints is a powerful tool to understand the pathogenesis of SS and develop new therapeutic targets.
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Affiliation(s)
- Cintia S. de Paiva
- Department of Ophthalmology, Baylor College of Medicine, Houston, TX, United States
| | - Claudia M. Trujillo-Vargas
- Department of Ophthalmology, Baylor College of Medicine, Houston, TX, United States
- Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, United States
- Grupo de Inmunodeficiencias Primarias, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia
| | - Laura Schaefer
- Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, United States
| | - Zhiyuan Yu
- Department of Ophthalmology, Baylor College of Medicine, Houston, TX, United States
| | - Robert A. Britton
- Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, United States
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12
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Yaeger MJ, Reece SW, Kilburg-Basnyat B, Hodge MX, Pal A, Dunigan-Russell K, Luo B, You DJ, Bonner JC, Spangenburg EE, Tokarz D, Hannan J, Armstrong M, Manke J, Reisdorph N, Tighe RM, Shaikh SR, Gowdy KM. Sex Differences in Pulmonary Eicosanoids and Specialized Pro-Resolving Mediators in Response to Ozone Exposure. Toxicol Sci 2021; 183:170-183. [PMID: 34175951 DOI: 10.1093/toxsci/kfab081] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Ozone (O3) is a criteria air pollutant known to increase the morbidity and mortality of cardiopulmonary diseases. This occurs through a pulmonary inflammatory response characterized by increased recruitment of immune cells into the airspace, pro-inflammatory cytokines, and pro-inflammatory lipid mediators. Recent evidence has demonstrated sex-dependent differences in the O3-induced pulmonary inflammatory response. However, it is unknown if this dimorphic response is evident in pulmonary lipid mediator metabolism. We hypothesized that there are sex-dependent differences in lipid mediator production following acute O3 exposure. Male and female C57BL/6J mice were exposed to 1 part per million O3 for 3 hours and were necropsied at 6 or 24 hours following exposure. Lung lavage was collected for cell differential and total protein analysis, and lung tissue was collected for mRNA analysis, metabololipidomics, and immunohistochemistry. Compared to males, O3-exposed female mice had increases in airspace neutrophilia, neutrophil chemokine mRNA, pro-inflammatory eicosanoids such as prostaglandin E2, and specialized pro-resolving mediators (SPMs) such as resolvin D5 in lung tissue. Likewise, precursor fatty acids (arachidonic and docosahexaenoic acid; DHA) were increased in female lung tissue following O3 exposure compared to males. Experiments with ovariectomized females revealed that loss of ovarian hormones exacerbates pulmonary inflammation and injury. However, eicosanoid and SPM production were not altered by ovariectomy despite depleted pulmonary DHA concentrations. Taken together, these data indicate that O3 drives an increased pulmonary inflammatory and bioactive lipid mediator response in females. Furthermore, ovariectomy increases susceptibility to O3-induced pulmonary inflammation and injury, as well as decreases pulmonary DHA concentrations.
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Affiliation(s)
- M J Yaeger
- Pulmonary, Critical Care and Sleep Medicine, Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, 43210
| | - S W Reece
- Department of Pharmacology and Toxicology, Brody School of Medicine, East Carolina University, Greenville, NC, 27858
| | - B Kilburg-Basnyat
- Department of Pharmacology and Toxicology, Brody School of Medicine, East Carolina University, Greenville, NC, 27858
| | - M X Hodge
- Department of Pharmacology and Toxicology, Brody School of Medicine, East Carolina University, Greenville, NC, 27858
| | - A Pal
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599
| | - K Dunigan-Russell
- Pulmonary, Critical Care and Sleep Medicine, Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, 43210
| | - B Luo
- Department of Pharmacology and Toxicology, Brody School of Medicine, East Carolina University, Greenville, NC, 27858
| | - D J You
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, 27107
| | - J C Bonner
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, 27107
| | - E E Spangenburg
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, NC, 27858
| | - D Tokarz
- Experimental Pathology Laboratories, Inc, Research Triangle Park, NC, 27709
| | - J Hannan
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, NC, 27858
| | - M Armstrong
- Department of Pharmaceutical Sciences, University of Colorado-AMC, Aurora, CO, 80045
| | - J Manke
- Department of Pharmaceutical Sciences, University of Colorado-AMC, Aurora, CO, 80045
| | - N Reisdorph
- Department of Pharmaceutical Sciences, University of Colorado-AMC, Aurora, CO, 80045
| | - R M Tighe
- Department of Medicine, Duke University Medical Center, Durham, NC, 27710
| | - S R Shaikh
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599
| | - K M Gowdy
- Pulmonary, Critical Care and Sleep Medicine, Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, 43210
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13
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Welty FK, Schulte F, Alfaddagh A, Elajami TK, Bistrian BR, Hardt M. Regression of human coronary artery plaque is associated with a high ratio of (18-hydroxy-eicosapentaenoic acid + resolvin E1) to leukotriene B 4. FASEB J 2021; 35:e21448. [PMID: 33749913 DOI: 10.1096/fj.202002471r] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/19/2021] [Accepted: 02/01/2021] [Indexed: 12/19/2022]
Abstract
Inflammation in arterial walls leads to coronary artery disease (CAD). We previously reported that a high omega-3 fatty index was associated with prevention of progression of coronary atherosclerosis, a disease of chronic inflammation in the arterial wall. However, the mechanism of such benefit is unclear. The two main omega-3 fatty acids, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are precursors of specialized pro-resolving lipid mediators (SPMs)-resolvins and maresins-which actively resolve chronic inflammation. To explore whether SPMs are associated with coronary plaque progression, levels of SPMs and proinflammatory mediators (leukotriene B4 [LTB4 ] and prostaglandins) were measured using liquid chromatography-tandem mass spectrometry in 31 statin-treated patients with stable CAD randomized to either EPA and DHA, 3.36 g daily, or no EPA/DHA (control). Coronary plaque volume was measured by coronary computed tomographic angiography at baseline and at 30-month follow-up. Higher plasma levels of EPA+DHA were associated with significantly increased levels of two SPMs-resolvin E1 and maresin 1-and 18-hydroxy-eicosapentaenoic acid (HEPE), the precursor of resolvin E1. Those with low plasma EPA+DHA levels had a low (18-HEPE+resolvin E1)/LTB4 ratio and significant plaque progression. Those with high plasma EPA+DHA levels had either low (18-HEPE+resolvin E1)/LTB4 ratios with significant plaque progression or high (18-HEPE+resolvin E1)/LTB4 ratios with significant plaque regression. These findings suggest that an imbalance between pro-resolving and proinflammatory lipid mediators is associated with plaque progression and potentially mediates the beneficial effects of EPA and DHA in CAD patients.
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Affiliation(s)
- Francine K Welty
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Fabian Schulte
- The Forsyth Institute, Cambridge, MA, USA.,Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA
| | - Abdulhamied Alfaddagh
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Tarec K Elajami
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Bruce R Bistrian
- Department of Internal Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Markus Hardt
- The Forsyth Institute, Cambridge, MA, USA.,Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA
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14
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Khasabova IA, Golovko MY, Golovko SA, Simone DA, Khasabov SG. Intrathecal administration of Resolvin D1 and E1 decreases hyperalgesia in mice with bone cancer pain: Involvement of endocannabinoid signaling. Prostaglandins Other Lipid Mediat 2020; 151:106479. [PMID: 32745525 PMCID: PMC7669692 DOI: 10.1016/j.prostaglandins.2020.106479] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 07/07/2020] [Accepted: 07/27/2020] [Indexed: 02/07/2023]
Abstract
Pain produced by bone cancer is often severe and difficult to treat. Here we examined effects of Resolvin D1 (RvD1) or E1 (RvE1), antinociceptive products of ω-3 polyunsaturated fatty acids, on cancer-induced mechanical allodynia and heat hyperalgesia. Experiments were performed using a mouse model of bone cancer produced by implantation of osteolytic ficrosarcoma into and around the calcaneus bone. Mechanical allodynia and heat hyperalgesia in the tumor-bearing paw were assessed by measuring withdrawal responses to a von Frey monofilament and to radiant heat applied on the plantar hind paw. RvD1, RvE1, and cannabinoid receptor antagonists were injected intrathecally. Spinal content of endocannabinoids was evaluated using UPLC-MS/MS analysis. RvD1 and RvE1 had similar antinociceptive potencies. ED50s for RvD1 and RvE1 in reducing mechanical allodynia were 0.2 pg (0.53 fmol) and 0.6 pg (1.71 fmol), respectively, and were 0.3 pg (0.8 fmol) and 0.2 pg (0.57 fmol) for reducing heat hyperalgesia. Comparisons of dose-response relationships showed equal efficacy for reducing mechanical allodynia, however, efficacy for reducing heat hyperalgesia was greater for of RvD1. Using UPLC-MS/MS we determined that RvD1, but not RvE1, increased levels of the endocannabinoids Anandamide and 2-Arachidonoylglycerol in the spinal cord. Importantly, Resolvins did not alter acute nociception or motor function in naïve mice. Our data indicate, that RvD1 and RvE1 produce potent antiallodynia and antihyperalgesia in a model of bone cancer pain. RvD1 also triggers spinal upregulation of endocannabinoids that produce additional antinociception predominantly through CB2 receptors.
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Affiliation(s)
- Iryna A Khasabova
- Department of Diagnostic and Biological Sciences, University of Minnesota, School of Dentistry, Minneapolis, MN, USA
| | - Mikhail Y Golovko
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, USA
| | - Svetlana A Golovko
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, USA
| | - Donald A Simone
- Department of Diagnostic and Biological Sciences, University of Minnesota, School of Dentistry, Minneapolis, MN, USA
| | - Sergey G Khasabov
- Department of Diagnostic and Biological Sciences, University of Minnesota, School of Dentistry, Minneapolis, MN, USA.
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15
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Schulte F, Asbeutah AA, Benotti PN, Wood GC, Still C, Bistrian BR, Hardt M, Welty FK. The relationship between specialized pro-resolving lipid mediators, morbid obesity and weight loss after bariatric surgery. Sci Rep 2020; 10:20128. [PMID: 33208757 PMCID: PMC7674470 DOI: 10.1038/s41598-020-75353-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 09/22/2020] [Indexed: 12/21/2022] Open
Abstract
Obesity and diabetes are associated with chronic inflammation. Specialized pro-resolving lipid mediators (SPMs)—resolvins (Rv), protectins (PD) and maresins (MaR)—actively resolve inflammation. Bariatric surgery achieves remission of diabetes, but mechanisms are unclear. We measured SPMs and proinflammatory eicosanoid levels using liquid chromatography-tandem mass spectrometry in 29 morbidly obese subjects (13 with diabetes) and 15 nondiabetic, mildly obese subjects. Compared to the mildly obese, the morbidly obese had higher levels of SPMs—RvD3, RvD4 and PD1—and white blood cells (WBC) and platelets. Post-surgery, SPM and platelet levels decreased in morbidly obese nondiabetic subjects but not in diabetic subjects, suggesting continued inflammation. Despite similar weight reductions 1 year after surgery (44.6% vs. 46.6%), 8 diabetes remitters had significant reductions in WBC and platelet counts whereas five non-remitters did not. Remitters had a 58.2% decrease (p = 0.03) in 14-HDHA, a maresin pathway marker; non-remitters had an 875.7% increase in 14-HDHA but a 36.9% decrease in MaR1 to a median of 0. In conclusion, higher levels of RvD3, PD1 and their pathway marker, 17-HDHA, are markers of leukocyte activation and inflammation in morbid obesity and diabetes and diminish with weight loss in nondiabetic but not diabetic subjects, possibly representing sustained inflammation in the latter. Lack of diabetes remission after surgically-induced weight loss may be associated with reduced ability to produce MaR1 and sustained inflammation.
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Affiliation(s)
- Fabian Schulte
- Forsyth Institute, Cambridge, MA, USA.,Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA
| | - Abdul Aziz Asbeutah
- Division of Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, SL 423, Boston, MA, 02215, USA.,Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | | | | | | | - Bruce R Bistrian
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Markus Hardt
- Forsyth Institute, Cambridge, MA, USA.,Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA
| | - Francine K Welty
- Division of Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, SL 423, Boston, MA, 02215, USA.
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16
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Yellepeddi VK, Parashar K, Dean SM, Watt KM, Constance JE, Baker OJ. Predicting Resolvin D1 Pharmacokinetics in Humans with Physiologically-Based Pharmacokinetic Modeling. Clin Transl Sci 2020; 14:683-691. [PMID: 33202089 PMCID: PMC7993257 DOI: 10.1111/cts.12930] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 10/13/2020] [Indexed: 12/13/2022] Open
Abstract
Sjögren’s syndrome (SS) is an autoimmune disease with no effective treatment options. Resolvin D1 (RvD1) belongs to a class of lipid‐based specialized pro‐resolving mediators that showed efficacy in preclinical models of SS. We developed a physiologically‐based pharmacokinetic (PBPK) model of RvD1 in mice and optimized the model using plasma and salivary gland pharmacokinetic (PK) studies performed in NOD/ShiLtJ mice with SS‐like features. The predictive performance of the PBPK model was also evaluated with two external datasets from the literature reporting RvD1 PKs. The PBPK model adequately captured the observed concentrations of RvD1 administered at different doses and in different species. The PKs of RvD1 in virtual humans were predicted using the verified PBPK model at various doses (0.01–10 mg/kg). The first‐in‐human predictions of RvD1 will be useful for the clinical trial design and translation of RvD1 as an effective treatment strategy for SS.
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Affiliation(s)
- Venkata K Yellepeddi
- Division of Clinical Pharmacology, Department of Pediatrics, School of Medicine, University of Utah, Salt Lake City, Utah, USA.,Department of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, University of Utah, Salt Lake City, Utah, USA
| | | | - Spencer M Dean
- School of Dentistry, University of Utah, Salt Lake City, Utah, USA
| | - Kevin M Watt
- Division of Clinical Pharmacology, Department of Pediatrics, School of Medicine, University of Utah, Salt Lake City, Utah, USA
| | - Jonathan E Constance
- Division of Clinical Pharmacology, Department of Pediatrics, School of Medicine, University of Utah, Salt Lake City, Utah, USA.,Department of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, University of Utah, Salt Lake City, Utah, USA
| | - Olga J Baker
- Department of Otolaryngology-Head and Neck Surgery, Department of Biochemistry, Christopher S. Bond Life Sciences Center, School of Medicine, University of Missouri-Columbia, Columbia, Missouri, USA
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