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Agarwal M, Roth K, Yang Z, Sharma R, Maddipati K, Westrick J, Petriello MC. Loss of flavin-containing monooxygenase 3 modulates dioxin-like polychlorinated biphenyl 126-induced oxidative stress and hepatotoxicity. ENVIRONMENTAL RESEARCH 2024; 250:118492. [PMID: 38373550 PMCID: PMC11102846 DOI: 10.1016/j.envres.2024.118492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/09/2024] [Accepted: 02/13/2024] [Indexed: 02/21/2024]
Abstract
Dioxin-like pollutants (DLPs), such as polychlorinated biphenyl 126 (PCB 126), are synthetic chemicals classified as persistent organic pollutants. They accumulate in adipose tissue and have been linked to cardiometabolic disorders, including fatty liver disease. The toxicity of these compounds is associated with activation of the aryl hydrocarbon receptor (Ahr), leading to the induction of phase I metabolizing enzyme cytochrome P4501a1 (Cyp1a1) and the subsequent production of reactive oxygen species (ROS). Recent research has shown that DLPs can also induce the xenobiotic detoxification enzyme flavin-containing monooxygenase 3 (FMO3), which plays a role in metabolic homeostasis. We hypothesized whether genetic deletion of Fmo3 could protect mice, particularly in the liver, where Fmo3 is most inducible, against PCB 126 toxicity. To test this hypothesis, male C57BL/6 wild-type (WT) mice and Fmo3 knockout (Fmo3 KO) mice were exposed to PCB 126 or vehicle (safflower oil) during a 12-week study, at weeks 2 and 4. Various analyses were performed, including hepatic histology, RNA-sequencing, and quantitation of PCB 126 and F2-isoprostane concentrations. The results showed that PCB 126 exposure caused macro and microvesicular fat deposition in WT mice, but this macrovesicular fatty change was absent in Fmo3 KO mice. Moreover, at the pathway level, the hepatic oxidative stress response was significantly different between the two genotypes, with the induction of specific genes observed only in WT mice. Notably, the most abundant F2-isoprostane, 8-iso-15-keto PGE2, increased in WT mice in response to PCB 126 exposure. The study's findings also demonstrated that hepatic tissue concentrations of PCB 126 were higher in WT mice compared to Fmo3 KO mice. In summary, the absence of FMO3 in mice led to a distinctive response to dioxin-like pollutant exposure in the liver, likely due to alterations in lipid metabolism and storage, underscoring the complex interplay of genetic factors in the response to environmental toxins.
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Affiliation(s)
- Manisha Agarwal
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI, 48202, USA; Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, 48202, USA
| | - Katherine Roth
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, 48202, USA
| | - Zhao Yang
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, 48202, USA
| | - Rahul Sharma
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, 48202, USA
| | - Krishnarao Maddipati
- Department of Pathology, Lipidomic Core Facility, Wayne State University, Detroit, MI, 48202, USA
| | - Judy Westrick
- Department of Chemistry, Lumigen Instrumentation Center, Wayne State University, Detroit, MI, 48202, USA
| | - Michael C Petriello
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI, 48202, USA; Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, 48202, USA.
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2
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Cools T, Wilson KS, Li D, Vancsok C, Mulot B, Leclerc A, Kok J, Haapakoski M, Bertelsen MF, Ochs A, Girling SJ, Zhou Y, Li R, Vanhaecke L, Wauters J. Development and validation of a versatile non-invasive urinary steroidomics method for wildlife biomonitoring. Talanta 2024; 273:125924. [PMID: 38518717 DOI: 10.1016/j.talanta.2024.125924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/11/2024] [Accepted: 03/13/2024] [Indexed: 03/24/2024]
Abstract
Wildlife conservation is often challenged by a lack of knowledge about the reproduction biology and adaptability of endangered species. Although monitoring steroids and related molecules can increase this knowledge, the applicability of current techniques (e.g. immunoassays) is hampered by species-specific steroid metabolism and the requisite to avoid invasive sampling. This study presents a validated steroidomics method for the (un)targeted screening of a wide range of sex and stress steroids and related molecules in urine using ultra-high performance liquid chromatography coupled to high-resolution mass spectrometry (UHPLC-HRMS). In total, 50 steroids (conjugated and non-conjugated androgens, estrogens, progestogens and glucocorticoids) and 6 prostaglandins could be uniquely detected. A total of 45 out of 56 compounds demonstrated a detection limit below 0.01 ng μL-1. Excellent linearity (R2 > 0.99), precision (CV < 20 %), and recovery (80-120 %) were observed for 46, 41, and 39 compounds, respectively. Untargeted screening of pooled giant panda and human samples yielded 9691 and 8366 features with CV < 30 %, from which 84.1 % and 83.0 %, respectively, also demonstrated excellent linearity (R2 > 0.90). The biological validity of the method was investigated on male and female giant panda urine (n = 20), as well as pooled human samples (n = 10). A total of 24 different steroids were detected with clear qualitative and quantitative differences between human and giant panda samples. Furthermore, expected differences were revealed between female giant panda samples from different reproductive phases. In contrast to traditional biomonitoring techniques, the developed steroidomics method was able to screen a wide range of compounds and provide information on the putative identities of metabolites potentially important for reproductive monitoring in giant pandas. These results illustrate the advancements steroidomics brings to the field of wildlife biomonitoring in the pursuit to better understand the biology of endangered species.
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Affiliation(s)
- Tom Cools
- Laboratory of Integrative Metabolomics, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium; Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Straße 17, 10315, Berlin, Germany
| | - Kirsten S Wilson
- MRC Centre for Reproductive Health, University of Edinburgh, 4-5 Little France Drive, Edinburgh, Scotland, United Kingdom
| | - Desheng Li
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in The Giant Panda National Park, China Conservation and Research Centre for Giant Panda (CCRCGP), People's Republic of China
| | - Catherine Vancsok
- Pairi Daiza Foundation - Pairi Daiza, Domaine de Cambron, 7940, Brugelette, Belgium
| | - Baptiste Mulot
- ZooParc de Beauval and Beauval Nature, Avenue du Blanc, 41110, Saint-Aignan, France
| | - Antoine Leclerc
- ZooParc de Beauval and Beauval Nature, Avenue du Blanc, 41110, Saint-Aignan, France
| | - José Kok
- Ouwehands Dierenpark Rhenen, Grebbeweg 111, 3911, AV Rhenen, the Netherlands
| | - Marko Haapakoski
- Ähtärin Eläinpuisto OY, Karhunkierros 150, FI-63700, Ähtäri, Finland; Department of Biological and Environmental Science, Konnevesi Research Station, University of Jyväskylä, Sirkkamäentie 220, FI-44300, Konnevesi, Finland
| | | | - Andreas Ochs
- Berlin Zoo, Hardenbergplatz 8, 10787, Berlin, Germany
| | - Simon J Girling
- Royal Zoological Society of Scotland, 134 Corstorphine Road, Edinburgh, Scotland, United Kingdom
| | - Yingmin Zhou
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in The Giant Panda National Park, China Conservation and Research Centre for Giant Panda (CCRCGP), People's Republic of China
| | - Rengui Li
- Key Laboratory of SFGA on Conservation Biology of Rare Animals in The Giant Panda National Park, China Conservation and Research Centre for Giant Panda (CCRCGP), People's Republic of China
| | - Lynn Vanhaecke
- Laboratory of Integrative Metabolomics, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium; Institute for Global Food Security, School of Biological Sciences, Queen's University, 19 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland, United Kingdom.
| | - Jella Wauters
- Laboratory of Integrative Metabolomics, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium; Department of Reproduction Biology, Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Straße 17, 10315, Berlin, Germany
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3
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Welch BM, Bommarito PA, Cantonwine DE, Milne GL, Motsinger-Reif A, Edin ML, Zeldin DC, Meeker JD, McElrath TF, Ferguson KK. Predictors of upstream inflammation and oxidative stress pathways during early pregnancy. Free Radic Biol Med 2024; 213:222-232. [PMID: 38262546 PMCID: PMC10922808 DOI: 10.1016/j.freeradbiomed.2024.01.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 01/25/2024]
Abstract
BACKGROUND Inflammation and oxidative stress are critical to pregnancy, but most human study has focused on downstream, non-causal indicators. Oxylipins are lipid mediators of inflammation and oxidative stress that act through many biological pathways. Our aim was to characterize predictors of circulating oxylipin concentrations based on maternal characteristics. METHODS Our study was conducted among 901 singleton pregnancies in the LIFECODES Fetal Growth Study, a nested case-cohort with recruitment from 2007 to 2018. We measured a targeted panel of oxylipins in early pregnancy plasma and urine samples from several biosynthetic pathways, defined by the polyunsaturated fatty acid (PUFA) precursor and enzyme group. We evaluated levels across predictors, including characteristics of participants' pregnancy, socioeconomic determinants, and obstetric and medical history. RESULTS Current pregnancy and sociodemographic characteristics were the most important predictors of circulating oxylipins concentrations. Plasma oxylipins were lower and urinary oxylipins higher for participants with a later gestational age at sampling (13-23 weeks), higher prepregnancy BMI (obesity class I, II, or III), Black or Hispanic race and ethnicity, and lower socioeconomic status (younger age, lower education, and uninsured). For example, compared to those with normal or underweight prepregnancy BMI, participants with class III prepregnancy obesity had 45-46% lower plasma epoxy-eicosatrienoic acids, the anti-inflammatory oxylipins produced from arachidonic acid (AA) by cytochrome P450, and had 81% higher urinary 15-series F2-isoprostanes, an indicator of oxidative stress produced from non-enzymatic AA oxidation. Similarly, in urine, Black participants had 92% higher prostaglandin E2 metabolite, a pro-inflammatory oxylipin, and 41% higher 5-series F2-isoprostane, an oxidative stress indicator. CONCLUSIONS In this large pregnancy study, we found that circulating levels of oxylipins were different for participants of lower socioeconomic status or of a systematically marginalized racial and ethnic groups. Given associations differed along biosynthetic pathways, results provide insight into etiologic links between maternal predictors and inflammation and oxidative stress.
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Affiliation(s)
- Barrett M Welch
- School of Public Health, University of Nevada, Reno, USA; Epidemiology Branch, Division of Intramural Research, National Institute of Environmental Health Sciences (NIEHS), USA
| | - Paige A Bommarito
- Epidemiology Branch, Division of Intramural Research, National Institute of Environmental Health Sciences (NIEHS), USA
| | - David E Cantonwine
- Division of Maternal-Fetal Medicine, Brigham and Women's Hospital, Harvard Medical School, USA
| | - Ginger L Milne
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University Medical Center, USA
| | - Alison Motsinger-Reif
- Biostatistics and Computational Biology Branch, Division of Intramural Research, National Institute of Environmental Health Sciences, USA
| | - Matthew L Edin
- Immunity, Inflammation, and Disease Laboratory, Division of Intramural Research, National Institute of Environmental Health Sciences, USA
| | - Darryl C Zeldin
- Immunity, Inflammation, and Disease Laboratory, Division of Intramural Research, National Institute of Environmental Health Sciences, USA
| | - John D Meeker
- Department of Environmental Health Sciences, University of Michigan School of Public Health, USA
| | - Thomas F McElrath
- Division of Maternal-Fetal Medicine, Brigham and Women's Hospital, Harvard Medical School, USA
| | - Kelly K Ferguson
- Epidemiology Branch, Division of Intramural Research, National Institute of Environmental Health Sciences (NIEHS), USA.
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Brady A, Sheneman KR, Pulsifer AR, Price SL, Garrison TM, Maddipati KR, Bodduluri SR, Pan J, Boyd NL, Zheng JJ, Rai SN, Hellmann J, Haribabu B, Uriarte SM, Lawrenz MB. Type 3 secretion system induced leukotriene B4 synthesis by leukocytes is actively inhibited by Yersinia pestis to evade early immune recognition. PLoS Pathog 2024; 20:e1011280. [PMID: 38271464 PMCID: PMC10846697 DOI: 10.1371/journal.ppat.1011280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 02/06/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024] Open
Abstract
Subverting the host immune response to inhibit inflammation is a key virulence strategy of Yersinia pestis. The inflammatory cascade is tightly controlled via the sequential action of lipid and protein mediators of inflammation. Because delayed inflammation is essential for Y. pestis to cause lethal infection, defining the Y. pestis mechanisms to manipulate the inflammatory cascade is necessary to understand this pathogen's virulence. While previous studies have established that Y. pestis actively inhibits the expression of host proteins that mediate inflammation, there is currently a gap in our understanding of the inflammatory lipid mediator response during plague. Here we used the murine model to define the kinetics of the synthesis of leukotriene B4 (LTB4), a pro-inflammatory lipid chemoattractant and immune cell activator, within the lungs during pneumonic plague. Furthermore, we demonstrated that exogenous administration of LTB4 prior to infection limited bacterial proliferation, suggesting that the absence of LTB4 synthesis during plague contributes to Y. pestis immune evasion. Using primary leukocytes from mice and humans further revealed that Y. pestis actively inhibits the synthesis of LTB4. Finally, using Y. pestis mutants in the Ysc type 3 secretion system (T3SS) and Yersinia outer protein (Yop) effectors, we demonstrate that leukocytes recognize the T3SS to initiate the rapid synthesis of LTB4. However, several Yop effectors secreted through the T3SS effectively inhibit this host response. Together, these data demonstrate that Y. pestis actively inhibits the synthesis of the inflammatory lipid LTB4 contributing to the delay in the inflammatory cascade required for rapid recruitment of leukocytes to sites of infection.
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Affiliation(s)
- Amanda Brady
- Department of Microbiology and Immunology, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Katelyn R. Sheneman
- Department of Microbiology and Immunology, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Amanda R. Pulsifer
- Department of Microbiology and Immunology, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Sarah L. Price
- Department of Microbiology and Immunology, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Taylor M. Garrison
- Department of Microbiology and Immunology, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Krishna Rao Maddipati
- Department of Pathology, Lipidomics Core Facility, Wayne State University, Detroit, Michigan, United States of America
| | - Sobha R. Bodduluri
- Department of Microbiology and Immunology, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Jianmin Pan
- Biostatistics and Bioinformatics Facility, Brown Cancer Center, University of Louisville, Louisville, Kentucky, United States of America
| | - Nolan L. Boyd
- Center for Cardiometabolic Science, Christina Lee Brown Environment Institute, Division of Environmental Medicine, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Jing-Juan Zheng
- Center for Cardiometabolic Science, Christina Lee Brown Environment Institute, Division of Environmental Medicine, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Shesh N. Rai
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Jason Hellmann
- Center for Cardiometabolic Science, Christina Lee Brown Environment Institute, Division of Environmental Medicine, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Bodduluri Haribabu
- Department of Microbiology and Immunology, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Silvia M. Uriarte
- Deptartment of Oral Immunology & Infectious Diseases, University of Louisville, Louisville, Kentucky, United States of America
| | - Matthew B. Lawrenz
- Department of Microbiology and Immunology, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
- Center for Predictive Medicine for Biodefense and Emerging Infectious Diseases, Louisville, Kentucky, United States of America
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5
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Mohamed R, Sullivan JC. Sustained activation of 12/15 lipoxygenase (12/15 LOX) contributes to impaired renal recovery post ischemic injury in male SHR compared to females. Mol Med 2023; 29:163. [PMID: 38049738 PMCID: PMC10696802 DOI: 10.1186/s10020-023-00762-y] [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: 05/31/2023] [Accepted: 11/19/2023] [Indexed: 12/06/2023] Open
Abstract
BACKGROUND Acute kidney injury (AKI) due to ischemia-reperfusion (IR) is a serious and frequent complication in clinical settings, and mortality rates remain high. There are well established sex differences in renal IR, with males exhibiting greater injury following an ischemic insult compared to females. We recently reported that males have impaired renal recovery from ischemic injury vs. females. However, the mechanisms mediating sex differences in renal recovery from IR injury remain poorly understood. Elevated 12/15 lipoxygenase (LOX) activity has been reported to contribute to the progression of numerous kidney diseases. The goal of the current study was to test the hypothesis that enhanced activation of 12/15 LOX contributes to impaired recovery post-IR in males vs. females. METHODS 13-week-old male and female spontaneously hypertensive rats (SHR) were randomized to sham or 30-minute warm bilateral IR surgery. Additional male and female SHR were randomized to treatment with vehicle or the specific 12/15 LOX inhibitor ML355 1 h prior to sham/IR surgery, and every other day following up to 7-days post-IR. Blood was collected from all rats 1-and 7-days post-IR. Kidneys were harvested 7-days post-IR and processed for biochemical, histological, and Western blot analysis. 12/15 LOX metabolites 12 and 15 HETE were measured in kidney samples by liquid chromatography-mass spectrometry (LC/MS). RESULTS Male SHR exhibited delayed recovery of renal function post-IR vs. male sham and female IR rats. Delayed recovery in males was associated with activation of renal 12/15 LOX, increased renal 12-HETE, enhanced endoplasmic reticulum (ER) stress, lipid peroxidation, renal cell death and inflammation compared to females 7-days post-IR. Treatment of male SHR with ML355 lowered levels of 12-HETE and resulted in reduced renal lipid peroxidation, ER stress, tubular cell death and inflammation 7-days post-IR with enhanced recovery of renal function compared to vehicle-treated IR male rats. ML355 treatment did not alter IR-induced increases in plasma creatinine in females, however, tubular injury and cell death were attenuated in ML355 treated females compared to vehicle-treated rats 7 days post-IR. CONCLUSION Our data demonstrate that sustained activation 12/15 LOX contributes to impaired renal recovery post ischemic injury in male and female SHR, although males are more susceptible on this mechanism than females.
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Affiliation(s)
- Riyaz Mohamed
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, Georgia, 30912, United States.
| | - Jennifer C Sullivan
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, Georgia, 30912, United States
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da Costa Souza F, Grodzki ACG, Morgan RK, Zhang Z, Taha AY, Lein PJ. Oxidized linoleic acid metabolites regulate neuronal morphogenesis in vitro. Neurochem Int 2023; 164:105506. [PMID: 36758902 PMCID: PMC10495953 DOI: 10.1016/j.neuint.2023.105506] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 02/04/2023] [Accepted: 02/06/2023] [Indexed: 02/10/2023]
Abstract
Linoleic acid (LA, 18:2n-6) is an essential nutrient for optimal infant growth and brain development. The effects of LA in the brain are thought to be mediated by oxygenated metabolites of LA known as oxidized LA metabolites (OXLAMs), but evidence is lacking to directly support this hypothesis. This study investigated whether OXLAMs modulate key neurodevelopmental processes including axon outgrowth, dendritic arborization, cell viability and synaptic connectivity. Primary cortical neuron-glia co-cultures from postnatal day 0-1 male and female rats were exposed for 48h to the following OXLAMs: 1) 13-hydroxyoctadecadienoic acid (13-HODE); 2) 9-hydroxyoctadecadienoic acid (9-HODE); 3) 9,10-dihydroxyoctadecenoic acid (9,10-DiHOME); 4) 12(13)-epoxyoctadecenoic acid (12(13)-EpOME); 5) 9,10,13-trihydroxyoctadecenoic acid (9,10,13-TriHOME); 6) 9-oxo-octadecadienoic acid (9-OxoODE); and 7) 12,13-dihydroxyoctadecenoic acid (12,13-DiHOME). Axonal outgrowth, evaluated by Tau-1 immunostaining, was increased by 9-HODE, but decreased by 12,13-DiHOME in male but not female neurons. Dendrite arborization, evaluated by MAP2B-eGFP expression, was affected by 9-HODE, 9-OxoODE, and 12(13)-EpOME in male neurons and, by 12(13)-EpOME in female neurons. Neither cell viability nor synaptic connectivity were significantly altered by OXLAMs. Overall, this study shows select OXLAMs modulate neuron morphology in a sex-dependent manner, with male neurons being more susceptible.
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Affiliation(s)
- Felipe da Costa Souza
- Department of Food Science and Technology, College of Agriculture and Environmental Sciences, University of California, Davis, CA, USA; Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, USA.
| | - Ana Cristina G Grodzki
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, USA.
| | - Rhianna K Morgan
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, USA.
| | - Zhichao Zhang
- Department of Food Science and Technology, College of Agriculture and Environmental Sciences, University of California, Davis, CA, USA.
| | - Ameer Y Taha
- Department of Food Science and Technology, College of Agriculture and Environmental Sciences, University of California, Davis, CA, USA.
| | - Pamela J Lein
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, USA.
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7
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Al-Shaer AE, Regan J, Buddenbaum N, Tharwani S, Drawdy C, Behee M, Sergin S, Fenton JI, Maddipati KR, Kane S, Butler E, Shaikh SR. Enriched Marine Oil Supplement Increases Specific Plasma Specialized Pro-Resolving Mediators in Adults with Obesity. J Nutr 2022; 152:1783-1791. [PMID: 35349683 PMCID: PMC9258560 DOI: 10.1093/jn/nxac075] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 02/13/2022] [Accepted: 03/18/2022] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Specialized pro-resolving mediators (SPMs), synthesized from PUFAs, resolve inflammation and return damaged tissue to homeostasis. Thus, increasing metabolites of the SPM biosynthetic pathway may have potential health benefits for select clinical populations, such as subjects with obesity who display dysregulation of SPM metabolism. However, the concentrations of SPMs and their metabolic intermediates in humans with obesity remains unclear. OBJECTIVES The primary objective of this study was to determine if a marine oil supplement increased specific metabolites of the SPM biosynthetic pathway in adults with obesity. The second objective was to determine if the supplement changed the relative abundance of key immune cell populations. Finally, given the critical role of antibodies in inflammation, we determined if ex vivo CD19 + B-cell antibody production was modified by marine oil intervention. METHODS Twenty-three subjects [median age: 56 y; BMI (in kg/m2): 33.1] consumed 2 g/d of a marine oil supplement for 28-30 d. The supplement was particularly enriched with 18-hydroxyeicosapentaenoic (HEPE), 14-hydroxydocosahexaenoic acid (14-HDHA), and 17-HDHA. Blood was collected pre- and postsupplementation for plasma mass spectrometry oxylipin and fatty acid analyses, flow cytometry, and B-cell isolation. Paired t-tests and Wilcoxon tests were used for statistical analyses. RESULTS Relative to preintervention, the supplement increased 6 different HEPEs and HDHAs accompanied by changes in plasma PUFAs. Resolvin E1 and docosapentaenoic acid-derived maresin 1 concentrations were increased 3.5- and 4.7-fold upon intervention, respectively. The supplement did not increase the concentration of D-series resolvins and had no effect on the abundance of immune cells. Ex vivo B-cell IgG but not IgM concentrations were lowered postsupplementation. CONCLUSIONS A marine oil supplement increased select SPMs and their metabolic intermediates in adults with obesity. Additional studies are needed to determine if increased concentrations of specific SPMs control the resolution of inflammation in humans with obesity. This trial was registered at clinicaltrials.gov as NCT04701138.
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Affiliation(s)
- Abrar E Al-Shaer
- Department of Nutrition, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Jennifer Regan
- Department of Nutrition, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Nicole Buddenbaum
- Department of Nutrition, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Sonum Tharwani
- The University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Catie Drawdy
- Department of Nutrition, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Madeline Behee
- Department of Nutrition, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Selin Sergin
- Department of Food Science and Human Nutrition, College of Agriculture and Natural Resources and College of Osteopathic Medicine, Michigan State University, East Lansing, MI, USA
| | - Jenifer I Fenton
- Department of Food Science and Human Nutrition, College of Agriculture and Natural Resources and College of Osteopathic Medicine, Michigan State University, East Lansing, MI, USA
| | - Krishna Rao Maddipati
- Department of Pathology, Bioactive Lipids Research Program, Wayne State University, Detroit, MI, USA
| | - Shawn Kane
- The University of North Carolina at Chapel Hill Family Medicine Center, Chapel Hill, NC, USA
| | - Erik Butler
- The University of North Carolina at Chapel Hill Family Medicine Center, Chapel Hill, NC, USA
| | - Saame Raza Shaikh
- Department of Nutrition, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- The University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
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8
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Massimino L, Bulbarelli A, Corsetto PA, Milani C, Botto L, Farina F, Lamparelli LA, Lonati E, Ungaro F, Maddipati KR, Palestini P, Rizzo AM. LSEA Evaluation of Lipid Mediators of Inflammation in Lung and Cortex of Mice Exposed to Diesel Air Pollution. Biomedicines 2022; 10:712. [PMID: 35327517 PMCID: PMC8945792 DOI: 10.3390/biomedicines10030712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/15/2022] [Accepted: 03/15/2022] [Indexed: 12/10/2022] Open
Abstract
Airborne ultrafine particle (UFP) exposure is a great concern as they have been correlated to increased cardiovascular mortality, neurodegenerative diseases and morbidity in occupational and environmental settings. The ultrafine components of diesel exhaust particles (DEPs) represent about 25% of the emission mass; these particles have a great surface area and consequently high capacity to adsorb toxic molecules, then transported throughout the body. Previous in-vivo studies indicated that DEP exposure increases pro- and antioxidant protein levels and activates inflammatory response both in respiratory and cardiovascular systems. In cells, DEPs can cause additional reactive oxygen species (ROS) production, which attacks surrounding molecules, such as lipids. The cell membrane provides lipid mediators (LMs) that modulate cell-cell communication, inflammation, and resolution processes, suggesting the importance of understanding lipid modifications induced by DEPs. In this study, with a lipidomic approach, we evaluated in the mouse lung and cortex how DEP acute and subacute treatments impact polyunsaturated fatty acid-derived LMs. To analyze the data, we designed an ad hoc bioinformatic pipeline to evaluate the functional enrichment of lipid sets belonging to the specific biological processes (Lipid Set Enrichment Analysis-LSEA). Moreover, the data obtained correlate tissue LMs and proteins associated with inflammatory process (COX-2, MPO), oxidative stress (HO-1, iNOS, and Hsp70), involved in the activation of many xenobiotics as well as PAH metabolism (Cyp1B1), suggesting a crucial role of lipids in the process of DEP-induced tissue damage.
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Affiliation(s)
- Luca Massimino
- Department of Gastroenterology and Digestive Endoscopy, IRCCS Ospedale San Raffaele, 20132 Milan, Italy; (L.M.); (F.U.)
- Molecular Medicine-Neuroscience, Università Vita-Salute San Raffaele, 20132 Milan, Italy
| | - Alessandra Bulbarelli
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Monza, Italy; (A.B.); (C.M.); (L.B.); (F.F.); (E.L.)
- Polaris Research Centre, University of Milano-Bicocca, 20126 Monza, Italy
| | - Paola Antonia Corsetto
- Department of Pharmacological and Biomolecular Sciences, University of Milano, 20133 Milano, Italy;
| | - Chiara Milani
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Monza, Italy; (A.B.); (C.M.); (L.B.); (F.F.); (E.L.)
| | - Laura Botto
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Monza, Italy; (A.B.); (C.M.); (L.B.); (F.F.); (E.L.)
| | - Francesca Farina
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Monza, Italy; (A.B.); (C.M.); (L.B.); (F.F.); (E.L.)
| | | | - Elena Lonati
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Monza, Italy; (A.B.); (C.M.); (L.B.); (F.F.); (E.L.)
| | - Federica Ungaro
- Department of Gastroenterology and Digestive Endoscopy, IRCCS Ospedale San Raffaele, 20132 Milan, Italy; (L.M.); (F.U.)
- Molecular Medicine-Neuroscience, Università Vita-Salute San Raffaele, 20132 Milan, Italy
| | - Krishna Rao Maddipati
- Department of Pathology, Lipidomics Core Facility, Wayne State University, Detroit, MI 48202, USA;
| | - Paola Palestini
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Monza, Italy; (A.B.); (C.M.); (L.B.); (F.F.); (E.L.)
- Polaris Research Centre, University of Milano-Bicocca, 20126 Monza, Italy
| | - Angela Maria Rizzo
- Department of Pharmacological and Biomolecular Sciences, University of Milano, 20133 Milano, Italy;
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9
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Kumar M, Yano N, Fedulov AV. Gestational exposure to titanium dioxide, diesel exhaust, and concentrated urban air particles affects levels of specialized pro-resolving mediators in response to allergen in asthma-susceptible neonate lungs. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2022; 85:243-261. [PMID: 34802391 PMCID: PMC8785906 DOI: 10.1080/15287394.2021.2000906] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Maternal gestational exposures to traffic and urban air pollutant particulates have been linked to increased risk and/or worsening asthma in children; however, mechanisms underlying this vertical transmission are not entirely understood. It was postulated that gestational particle exposure might affect the ability to elicit specialized proresolving mediator (SPM) responses upon allergen encounter in neonates. Lipidomic profiling of 50 SPMs was performed in lungs of neonates born to mice exposed to concentrated urban air particles (CAP), diesel exhaust particles (DEP), or less immunotoxic titanium dioxide particles (TiO2). While asthma-like phenotypes were induced with identical eosinophilia intensity across neonates of all particle-exposed mothers, levels of LXA4, HEPE and HETE isoforms, and HDoHe were only decreased by CAP and DEP only but not by TiO2. However, RvE2 and RvD1 were inhibited by all particles. In contrast, isomers of Maresin1 and Protectin D1 were variably elevated by CAP and DEP, whereas Protectin DX, PGE2, and TxB2 were increased in all groups. Only Protectin D1/DX, MaR1(n-3,DPA), 5(S),15(S)-DiHETE, PGE2, and RvE3 correlated with eosinophilia but the majority of other analytes, elevated or inhibited, showed no marked correlation with inflammation intensity. Evidence indicates that gestational particle exposure leads to both particle-specific and nonspecific effects on the SPM network.
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Affiliation(s)
- Mohan Kumar
- Alpert Medical School of Brown University. Department of Surgery, Rhode Island Hospital. 593 Eddy Street, Providence, RI, USA. 02903
| | - Naohiro Yano
- Alpert Medical School of Brown University. Department of Surgery, Rhode Island Hospital. 593 Eddy Street, Providence, RI, USA. 02903
| | - Alexey V. Fedulov
- Alpert Medical School of Brown University. Department of Surgery, Rhode Island Hospital. 593 Eddy Street, Providence, RI, USA. 02903
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10
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Khalfallah O, Barbosa S, Martinuzzi E, Davidovic L, Yolken R, Glaichenhaus N. Monitoring inflammation in psychiatry: Caveats and advice. Eur Neuropsychopharmacol 2022; 54:126-135. [PMID: 34607723 DOI: 10.1016/j.euroneuro.2021.09.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/01/2021] [Accepted: 09/07/2021] [Indexed: 12/20/2022]
Abstract
Most researchers working in the field of immunopsychiatry would agree with the statement that "severe psychiatric disorders are associated with inflammation and more broadly with changes in immune variables". However, as many other fields in biology and medicine, immunopsychiatry suffers from a replication crisis characterized by lack of reproducibility. In this paper, we will comment on four types of immune variables which have been studied in psychiatric disorders: Acute Phase Proteins (AAPs), cytokines, lipid mediators of inflammation and immune cell parameters, and discuss the rationale for looking at them in blood. We will briefly describe the analytical methods that are currently used to measure the levels of these biomarkers and comment on overlooked analytical and statistical methodological issues that may explain some of the conflicting data reported in the literature. Lastly, we will briefly summarize what cross-sectional, longitudinal and mendelian randomization studies have brought to our understanding of schizophrenia (SZ).
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Affiliation(s)
- Olfa Khalfallah
- Université Côte d'Azur, Centre National de la Recherche Scientifique, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | - Susana Barbosa
- Université Côte d'Azur, Centre National de la Recherche Scientifique, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | - Emanuela Martinuzzi
- Université Côte d'Azur, Centre National de la Recherche Scientifique, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | - Laetitia Davidovic
- Université Côte d'Azur, Centre National de la Recherche Scientifique, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | - Robert Yolken
- John Hopkins School of Medicine, The John Hopkins Hospital, Baltimore, United States
| | - Nicolas Glaichenhaus
- Université Côte d'Azur, Centre National de la Recherche Scientifique, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France.
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11
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Gao J, Dong X, Su Y, Wang Z. Human neutrophil membrane-derived nanovesicles as a drug delivery platform for improved therapy of infectious diseases. Acta Biomater 2021; 123:354-363. [PMID: 33476827 DOI: 10.1016/j.actbio.2021.01.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 01/09/2021] [Accepted: 01/13/2021] [Indexed: 02/06/2023]
Abstract
Resolvins are a group of specialized proresolving lipid mediators (SPMs) enzymatically produced from omega-3 fatty acids during acute inflammation response to infections or tissue injury. Resolvin D1 (RvD1) is one of resolvins and is well studied in resolution of inflammation to treat inflammatory diseases. Resolution of inflammation includes the inhibition of polymorphonuclear leukocyte recruitment and reduced cytokine production. However, effective delivery of RvD1 to inflammatory tissues is challenging because of its lack of tissue targeting and poor physicochemical properties. Here, we proposed nanovesicles made from human neutrophil membrane which can specifically target inflamed tissues, and we loaded RvD1 on the surface of nanovesicles and antibiotic (ceftazidime, CEF) inside nanovesicles for improved treatment of bacterial infections. In a mouse model of bacterium-induced peritonitis, we demonstrated that human neutrophil cell membrane-formed vesicles (NMVs) enhanced inflammation resolution and bacterial killing after co-delivery of RvD1 and CEF. Our studies reveal that neutrophil nanovesicles may be critical for enhanced therapy to infectious diseases.
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12
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Arvind A, Osganian SA, Sjoquist JA, Corey KE, Simon TG. Epoxygenase-Derived Epoxyeicosatrienoic Acid Mediators Are Associated With Nonalcoholic Fatty Liver Disease, Nonalcoholic Steatohepatitis, and Fibrosis. Gastroenterology 2020; 159:2232-2234.e4. [PMID: 32768596 PMCID: PMC7725909 DOI: 10.1053/j.gastro.2020.08.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 07/13/2020] [Accepted: 08/03/2020] [Indexed: 01/10/2023]
Affiliation(s)
- Ashwini Arvind
- Harvard Medical School, Boston, MA,Liver Center and Gastrointestinal Division, Massachusetts General Hospital, Boston, MA
| | - Stephanie A. Osganian
- Liver Center and Gastrointestinal Division, Massachusetts General Hospital, Boston, MA
| | - Julia A. Sjoquist
- Liver Center and Gastrointestinal Division, Massachusetts General Hospital, Boston, MA
| | - Kathleen E. Corey
- Harvard Medical School, Boston, MA,Liver Center and Gastrointestinal Division, Massachusetts General Hospital, Boston, MA,Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston MA
| | - Tracey G. Simon
- Harvard Medical School, Boston, MA,Liver Center and Gastrointestinal Division, Massachusetts General Hospital, Boston, MA,Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston MA
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13
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van Neel TL, Berry SB, Berthier E, Theberge AB. Localized Cell-Surface Sampling of a Secreted Factor Using Cell-Targeting Beads. Anal Chem 2020; 92:13634-13640. [PMID: 32941013 DOI: 10.1021/acs.analchem.0c02578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Intercellular communication through the secretion of soluble factors plays a vital role in a wide range of biological processes (e.g., homeostasis, immune response), yet identification and quantification of many of these factors can be challenging due to their degradation or sequestration in cell culture media prior to analysis. Here, we present a customizable bead-based system capable of simultaneously binding to live cells (through antibody-mediated cell tethering) and capturing cell-secreted molecules. Our functionalized beads capture secreted molecules (e.g., hepatocyte growth factor secreted by fibroblasts) that are diminished when sampled via traditional supernatant analysis techniques (p < 0.05), effectively rescuing a reduced signal in the presence of neutralizing components in the cell culture media. Our system enables capture and analysis of molecules integral to chemical communication that would otherwise be markedly decreased prior to analysis.
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Affiliation(s)
- Tammi L van Neel
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195, United States
| | - Samuel B Berry
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195, United States
| | - Erwin Berthier
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195, United States
| | - Ashleigh B Theberge
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195, United States.,Department of Urology, University of Washington, Seattle, Washington 98105, United States
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14
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Parks EE, Logan S, Yeganeh A, Farley JA, Owen DB, Sonntag WE. Interleukin 6 reduces allopregnanolone synthesis in the brain and contributes to age-related cognitive decline in mice. J Lipid Res 2020; 61:1308-1319. [PMID: 32669383 PMCID: PMC7529050 DOI: 10.1194/jlr.ra119000479] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Cognitive decline with age is a harmful process that can reduce quality of life. Multiple factors have been established to contribute to cognitive decline, but the overall etiology remains unknown. Here, we hypothesized that cognitive dysfunction is mediated, in part, by increased levels of inflammatory cytokines that alter allopregnanolone (AlloP) levels, an important neurosteroid in the brain. We assessed the levels and regulation of AlloP and the effects of AlloP supplementation on cognitive function in 4-month-old and 24-month-old male C57BL/6 mice. With age, the expression of enzymes involved in the AlloP synthetic pathway was decreased and corticosterone (CORT) synthesis increased. Supplementation of AlloP improved cognitive function. Interestingly, interleukin 6 (IL-6) infusion in young animals significantly reduced the production of AlloP compared with controls. It is notable that inhibition of IL-6 with its natural inhibitor, soluble membrane glycoprotein 130, significantly improved spatial memory in aged mice. These findings were supported by in vitro experiments in primary murine astrocyte cultures, indicating that IL-6 decreases production of AlloP and increases CORT levels. Our results indicate that age-related increases in IL-6 levels reduce progesterone substrate availability, resulting in a decline in AlloP levels and an increase in CORT. Furthermore, our results indicate that AlloP is a critical link between inflammatory cytokines and the age-related decline in cognitive function.
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Affiliation(s)
- Eileen E Parks
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.,Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Sreemathi Logan
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.,Department of Rehabilitation Sciences, College of Allied Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Alexander Yeganeh
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.,Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Julie A Farley
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.,Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Daniel B Owen
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.,Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - William E Sonntag
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA .,Oklahoma Center for Neuroscience, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.,Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
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15
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Ulmer CZ, Koelmel JP, Jones CM, Garrett TJ, Aristizabal-Henao JJ, Vesper HW, Bowden JA. A Review of Efforts to Improve Lipid Stability during Sample Preparation and Standardization Efforts to Ensure Accuracy in the Reporting of Lipid Measurements. Lipids 2020; 56:3-16. [PMID: 32519378 DOI: 10.1002/lipd.12263] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 05/03/2020] [Accepted: 05/19/2020] [Indexed: 11/07/2022]
Abstract
Lipidomics is a rapidly growing field, fueled by developments in analytical instrumentation and bioinformatics. To date, most researchers and industries have employed their own lipidomics workflows without a consensus on best practices. Without a community-wide consensus on best practices for the prevention of lipid degradation and transformations through sample collection and analysis, it is difficult to assess the quality of lipidomics data and hence trust results. Clinical studies often rely on samples being stored for weeks or months until they are analyzed, but inappropriate sampling techniques, storage temperatures, and analytical protocols can result in the degradation of complex lipids and the generation of oxidized or hydrolyzed metabolite artifacts. While best practices for lipid stability are sample dependent, it is generally recommended that strategies during sample preparation capable of quenching enzymatic activity and preventing oxidation should be considered. In addition, after sample preparation, lipid extracts should be stored in organic solvents with antioxidants at -20 °C or lower in an airtight container without exposure to light or oxygen. This will reduce or eliminate sublimation, and chemically and physically induced molecular transformations such as oxidation, enzymatic transformation, and photon/heat-induced degradation. This review explores the available literature on lipid stability, with a particular focus on human health and/or clinical lipidomic applications. Specifically, this includes a description of known mechanisms of lipid degradation, strategies, and considerations for lipid storage, as well as current efforts for standardization and quality insurance of protocols.
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Affiliation(s)
- Candice Z Ulmer
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Hwy NE, MS F25, Atlanta, GA, 30341, USA
| | - Jeremy P Koelmel
- Department of Environmental Health Sciences, Yale School of Medicine, Yale University, 60 College Street, Room 510, New Haven, CT, 06520, USA
| | - Christina M Jones
- Chemical Sciences Division, Organic Chemical Metrology Group, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD, 20899, USA
| | - Timothy J Garrett
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Juan J Aristizabal-Henao
- Center for Environmental and Human Toxicology & Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32611, USA
| | - Hubert W Vesper
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Hwy NE, MS F25, Atlanta, GA, 30341, USA
| | - John A Bowden
- Center for Environmental and Human Toxicology & Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32611, USA
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16
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Chopra S, Giovanelli P, Alvarado-Vazquez PA, Alonso S, Song M, Sandoval TA, Chae CS, Tan C, Fonseca MM, Gutierrez S, Jimenez L, Subbaramaiah K, Iwawaki T, Kingsley PJ, Marnett LJ, Kossenkov AV, Crespo MS, Dannenberg AJ, Glimcher LH, Romero-Sandoval EA, Cubillos-Ruiz JR. IRE1α-XBP1 signaling in leukocytes controls prostaglandin biosynthesis and pain. Science 2020; 365:365/6450/eaau6499. [PMID: 31320508 DOI: 10.1126/science.aau6499] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 03/27/2019] [Accepted: 06/10/2019] [Indexed: 12/28/2022]
Abstract
Inositol-requiring enzyme 1[α] (IRE1[α])-X-box binding protein spliced (XBP1) signaling maintains endoplasmic reticulum (ER) homeostasis while controlling immunometabolic processes. Yet, the physiological consequences of IRE1α-XBP1 activation in leukocytes remain unexplored. We found that induction of prostaglandin-endoperoxide synthase 2 (Ptgs2/Cox-2) and prostaglandin E synthase (Ptges/mPGES-1) was compromised in IRE1α-deficient myeloid cells undergoing ER stress or stimulated through pattern recognition receptors. Inducible biosynthesis of prostaglandins, including the pro-algesic mediator prostaglandin E2 (PGE2), was decreased in myeloid cells that lack IRE1α or XBP1 but not other ER stress sensors. Functional XBP1 transactivated the human PTGS2 and PTGES genes to enable optimal PGE2 production. Mice that lack IRE1α-XBP1 in leukocytes, or that were treated with IRE1α inhibitors, demonstrated reduced pain behaviors in PGE2-dependent models of pain. Thus, IRE1α-XBP1 is a mediator of prostaglandin biosynthesis and a potential target to control pain.
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Affiliation(s)
- Sahil Chopra
- Weill Cornell Graduate School of Medical Sciences, Cornell University. New York, NY 10065, USA.,Department of Obstetrics and Gynecology, Weill Cornell Medicine. New York, NY 10065, USA.,Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY 10065, USA
| | - Paolo Giovanelli
- Weill Cornell Graduate School of Medical Sciences, Cornell University. New York, NY 10065, USA.,Department of Obstetrics and Gynecology, Weill Cornell Medicine. New York, NY 10065, USA.,Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY 10065, USA
| | - Perla Abigail Alvarado-Vazquez
- Department of Anesthesiology, Pain Mechanisms Laboratory, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA
| | - Sara Alonso
- Instituto de Biología y Genética Molecular, CSIC-Universidad de Valladolid, Valladolid, Spain
| | - Minkyung Song
- Department of Obstetrics and Gynecology, Weill Cornell Medicine. New York, NY 10065, USA.,Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY 10065, USA
| | - Tito A Sandoval
- Department of Obstetrics and Gynecology, Weill Cornell Medicine. New York, NY 10065, USA.,Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY 10065, USA
| | - Chang-Suk Chae
- Department of Obstetrics and Gynecology, Weill Cornell Medicine. New York, NY 10065, USA.,Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY 10065, USA
| | - Chen Tan
- Department of Obstetrics and Gynecology, Weill Cornell Medicine. New York, NY 10065, USA.,Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY 10065, USA
| | - Miriam M Fonseca
- Department of Anesthesiology, Pain Mechanisms Laboratory, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA
| | - Silvia Gutierrez
- Department of Anesthesiology, Pain Mechanisms Laboratory, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA
| | - Leandro Jimenez
- Instituto Ludwig de Pesquisa Sobre o Câncer, São Paulo, Brazil.,Hospital Sírio-Libanês, São Paulo, Brazil
| | | | - Takao Iwawaki
- Division of Cell Medicine, Medical Research Institute, Kazanawa Medical University, Ishikawa, Japan
| | - Philip J Kingsley
- Department of Biochemistry, Vanderbilt University, Nashville, TN 37232, USA
| | - Lawrence J Marnett
- Department of Biochemistry, Vanderbilt University, Nashville, TN 37232, USA.,A. B. Hancock Jr. Memorial Laboratory for Cancer Research, Departments of Biochemistry, Chemistry and Pharmacology, Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Andrew V Kossenkov
- Center for Systems and Computational Biology, The Wistar Institute, Philadelphia, PA 19104, USA
| | - Mariano Sanchez Crespo
- Instituto de Biología y Genética Molecular, CSIC-Universidad de Valladolid, Valladolid, Spain
| | | | - Laurie H Glimcher
- Department of Medicine, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA. .,Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - E Alfonso Romero-Sandoval
- Department of Anesthesiology, Pain Mechanisms Laboratory, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA.
| | - Juan R Cubillos-Ruiz
- Weill Cornell Graduate School of Medical Sciences, Cornell University. New York, NY 10065, USA. .,Department of Obstetrics and Gynecology, Weill Cornell Medicine. New York, NY 10065, USA.,Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY 10065, USA
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17
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Dasilva G, Medina I. Lipidomic methodologies for biomarkers of chronic inflammation in nutritional research: ω-3 and ω-6 lipid mediators. Free Radic Biol Med 2019; 144:90-109. [PMID: 30902758 DOI: 10.1016/j.freeradbiomed.2019.03.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 02/20/2019] [Accepted: 03/13/2019] [Indexed: 02/06/2023]
Abstract
The evolutionary history of hominins has been characterized by significant dietary changes, which include the introduction of meat eating, cooking, and the changes associated with plant and animal domestication. The Western pattern diet has been linked with the onset of chronic inflammation, and serious health problems including obesity, metabolic syndrome, and cardiovascular diseases. Diets enriched with ω-3 marine PUFAs have revealed additional improvements in health status associated to a reduction of proinflammatory ω-3 and ω-6 lipid mediators. Lipid mediators are produced from enzymatic and non-enzymatic oxidation of PUFAs. Interest in better understanding the occurrence of these metabolites has increased exponentially as a result of the growing evidence of their role on inflammatory processes, control of the immune system, cell signaling, onset of metabolic diseases, or even cancer. The scope of this review has been to highlight the recent findings on: a) the formation of lipid mediators and their role in different inflammatory and metabolic conditions, b) the direct use of lipid mediators as antiinflammatory drugs or the potential of new drugs as a new therapeutic option for the synthesis of antiinflammatory or resolving lipid mediators and c) the impact of nutritional interventions to modulate lipid mediators synthesis towards antiinflammatory conditions. In a second part, we have summarized methodological approaches (Lipidomics) for the accurate analysis of lipid mediators. Although several techniques have been used, most authors preferred the combination of SPE with LC-MS. Advantages and disadvantages of each method are herein addressed, as well as the main LC-MS difficulties and challenges for the establishment of new biomarkers and standardization of experimental designs, and finally to deepen the study of mechanisms involved on the inflammatory response.
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Affiliation(s)
- Gabriel Dasilva
- Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas (IIM-CSIC), c/Eduardo Cabello 6, 36208, Vigo, Spain.
| | - Isabel Medina
- Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas (IIM-CSIC), c/Eduardo Cabello 6, 36208, Vigo, Spain
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18
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Herroon MK, Diedrich JD, Rajagurubandara E, Martin C, Maddipati KR, Kim S, Heath EI, Granneman J, Podgorski I. Prostate Tumor Cell-Derived IL1β Induces an Inflammatory Phenotype in Bone Marrow Adipocytes and Reduces Sensitivity to Docetaxel via Lipolysis-Dependent Mechanisms. Mol Cancer Res 2019; 17:2508-2521. [PMID: 31562254 DOI: 10.1158/1541-7786.mcr-19-0540] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 08/19/2019] [Accepted: 09/23/2019] [Indexed: 12/12/2022]
Abstract
Adipocyte-tumor cell cross-talk is one of the critical mediators of tumor progression and an emerging facilitator of therapy evasion. Tumor cells that metastasize to adipocyte-rich bone marrow take advantage of the interplay between metabolic and inflammatory pathways to activate prosurvival mechanisms that allow them to thrive and escape therapy. Using in vitro and in vivo models of marrow adiposity, we demonstrate that metastatic prostate carcinoma cells engage bone marrow adipocytes in a functional cross-talk that promotes IL1β expression in tumor cells. Tumor-supplied IL1β contributes to adipocyte lipolysis and regulates a proinflammatory phenotype in adipocytes via upregulation of COX-2 and MCP-1. We further show that the enhanced activity of the IL1β/COX-2/MCP-1 axis and a resulting increase in PGE2 production by adipocytes coincide with augmented hypoxia signaling and activation of prosurvival pathways in tumor cells, revealing a potential mechanism of chemoresistance. The major consequence of this interplay is the reduced response of prostate cancer cells to docetaxel, a phenomenon sensitive to the inhibition of lipolysis. IMPLICATIONS: Studies presented herein highlight adipocyte lipolysis as a tumor-regulated metabolic event that engages proinflammatory cross-talk in the microenvironment to promote prostate cancer progression in bone. Understanding the impact of bone marrow adipose tissue on tumor adaptation, survival, and chemotherapy response is fundamentally important, as current treatment options for metastatic prostate cancer are palliative.
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Affiliation(s)
- Mackenzie K Herroon
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, Michigan
| | - Jonathan D Diedrich
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, Michigan.,Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan.,Karmanos Cancer Institute, Detroit, Michigan
| | - Erandi Rajagurubandara
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, Michigan
| | - Carly Martin
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, Michigan.,Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan.,Karmanos Cancer Institute, Detroit, Michigan
| | - Krishna R Maddipati
- Department of Pathology, Wayne State University School of Medicine, Detroit, Michigan
| | - Seongho Kim
- Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan.,Karmanos Cancer Institute, Detroit, Michigan
| | - Elisabeth I Heath
- Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan.,Karmanos Cancer Institute, Detroit, Michigan
| | - James Granneman
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, Michigan
| | - Izabela Podgorski
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, Michigan. .,Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan.,Karmanos Cancer Institute, Detroit, Michigan
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19
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Abstract
PURPOSE Lipid mediators of inflammation are a group of signaling molecules produced by various cells under physiological conditions and modulate the inflammatory process during various pathologic conditions. Although eicosanoids and F2-isoprostanes are recognized lipid mediators of inflammation, there is no consensus yet on the extraction and mass spectrometry (MS) method for their analysis in individual human tear samples. Thus, the aim of this study was to develop an optimal method for extraction of lipid mediators of inflammation in the tear film and evaluate MS techniques for their analysis. METHODS Basal tears were collected from each eye of 19 subjects using glass microcapillaries. Lipid extraction was performed using either varying concentrations of acidified methanol, a modified Folch method, or solid-phase extraction. Initially, an untargeted analysis of the extracts was performed using SCIEX TripleTOF 5600 mass spectrometer to identify any lipid mediators of inflammation (eicosanoids) and later a targeted analysis was performed using the SCIEX 6500 Qtrap to identify and quantify prostaglandins and isoprostanes. Mass spectra and chromatograms were analyzed using Peakview, XCMS, and Multiquant software. RESULTS Prostaglandins and isoprostanes were observed and quantified using the Qtrap mass spectrometer under multiple reaction monitoring (MRM) mode after solid-phase extraction. Extraction with acidified methanol along with the Folch method produced cleaner spectra during MS with the Triple time of flight (TOF) mass spectrometer. Lipid mediators of inflammation were not observed in any of the tear samples using the Triple TOF mass spectrometer. CONCLUSIONS Solid-phase extraction may be the method of choice for extraction of prostaglandins and isoprostanes in low volumes of tears. The SCIEX Qtrap 6500 in MRM mode may be suitable to identify and quantify similar lipid mediators of inflammation.
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Warner DR, Liu H, Ghosh Dastidar S, Warner JB, Prodhan MAI, Yin X, Zhang X, Feldstein AE, Gao B, Prough RA, McClain CJ, Kirpich IA. Ethanol and unsaturated dietary fat induce unique patterns of hepatic ω-6 and ω-3 PUFA oxylipins in a mouse model of alcoholic liver disease. PLoS One 2018; 13:e0204119. [PMID: 30256818 PMCID: PMC6157879 DOI: 10.1371/journal.pone.0204119] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 09/04/2018] [Indexed: 12/19/2022] Open
Abstract
Alcoholic liver disease (ALD), a significant health problem, progresses through the course of several pathologies including steatosis, steatohepatitis, fibrosis, and cirrhosis. There are no effective FDA-approved medications to prevent or treat any stages of ALD, and the mechanisms involved in ALD pathogenesis are not well understood. Bioactive lipid metabolites play a crucial role in numerous pathological conditions, as well as in the induction and resolution of inflammation. Herein, a hepatic lipidomic analysis was performed on a mouse model of ALD with the objective of identifying novel metabolic pathways and lipid mediators associated with alcoholic steatohepatitis, which might be potential novel biomarkers and therapeutic targets for the disease. We found that ethanol and dietary unsaturated, but not saturated, fat caused elevated plasma ALT levels, hepatic steatosis and inflammation. These pathologies were associated with increased levels of bioactive lipid metabolites generally involved in pro-inflammatory responses, including 13-hydroxy-octadecadienoic acid, 9,10- and 12,13-dihydroxy-octadecenoic acids, 5-, 8-, 9-, 11-, 15-hydroxy-eicosatetraenoic acids, and 8,9- and 11,12-dihydroxy-eicosatrienoic acids, in parallel with an increase in pro-resolving mediators, such as lipoxin A4, 18-hydroxy-eicosapentaenoic acid, and 10S,17S-dihydroxy-docosahexaenoic acid. Elucidation of alterations in these lipid metabolites may shed new light into the molecular mechanisms underlying ALD development/progression, and be potential novel therapeutic targets.
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Affiliation(s)
- Dennis R. Warner
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, Kentucky, United States of America
| | - Huilin Liu
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, Kentucky, United States of America
- College of Life Science, Jilin University, Changchun, China
| | - Shubha Ghosh Dastidar
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, Kentucky, United States of America
| | - Jeffrey B. Warner
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, Kentucky, United States of America
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
| | - Md Aminul Islam Prodhan
- Department of Chemistry, University of Louisville, Louisville, Kentucky, United States of America
| | - Xinmin Yin
- Department of Chemistry, University of Louisville, Louisville, Kentucky, United States of America
| | - Xiang Zhang
- Department of Chemistry, University of Louisville, Louisville, Kentucky, United States of America
- University of Louisville Alcohol Center, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
- Hepatobiology & Toxicology Program, University of Louisville, Louisville, Kentucky, United States of America
| | - Ariel E. Feldstein
- Division of Gastroenterology, Department of Pediatrics, University of California San Diego, San Diego, California, United States of America
| | - Bin Gao
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Russell A. Prough
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, Kentucky, United States of America
- University of Louisville Alcohol Center, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
- Hepatobiology & Toxicology Program, University of Louisville, Louisville, Kentucky, United States of America
| | - Craig J. McClain
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, Kentucky, United States of America
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
- University of Louisville Alcohol Center, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
- Hepatobiology & Toxicology Program, University of Louisville, Louisville, Kentucky, United States of America
- Robley Rex Veterans Medical Center, Louisville, Kentucky, United States of America
| | - Irina A. Kirpich
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, Kentucky, United States of America
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
- University of Louisville Alcohol Center, University of Louisville School of Medicine, Louisville, Kentucky, United States of America
- Hepatobiology & Toxicology Program, University of Louisville, Louisville, Kentucky, United States of America
- * E-mail:
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Thakare R, Chhonker YS, Gautam N, Nelson A, Casaburi R, Criner G, Dransfield MT, Make B, Schmid KK, Rennard SI, Alnouti Y. Simultaneous LC-MS/MS analysis of eicosanoids and related metabolites in human serum, sputum and BALF. Biomed Chromatogr 2018; 32:10.1002/bmc.4102. [PMID: 28975688 PMCID: PMC6003856 DOI: 10.1002/bmc.4102] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 09/05/2017] [Accepted: 09/24/2017] [Indexed: 01/09/2023]
Abstract
The differences among individual eicosanoids in eliciting different physiological and pathological responses are largely unknown because of the lack of valid and simple analytical methods for the quantification of individual eicosanoids and their metabolites in serum, sputum and bronchial alveolar lavage fluid (BALF). Therefore, a simple and sensitive LC-MS/MS method for the simultaneous quantification of 34 eicosanoids in human serum, sputum and BALF was developed and validated. This method is valid and sensitive with a limit of quantification ranging from 0.2 to 3 ng/mL for the various analytes, and has a large dynamic range (500 ng/mL) and a short run time (25 min). The intra- and inter-day accuracy and precision values met the acceptance criteria according to US Food and Drug Administration guidelines. Using this method, detailed eicosanoid profiles were quantified in serum, sputum and BALF from a pilot human study. In summary, a reliable and simple LC-MS/MS method to quantify major eicosanoids and their metabolites was developed and applied to quantify eicosanoids in human various fluids, demonstrating its suitability to assess eicosanoid biomarkers in human clinical trials.
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Affiliation(s)
- Rhishikesh Thakare
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Yashpal S. Chhonker
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Nagsen Gautam
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Amy Nelson
- Pulmonary and Critical Care Medicine Section, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Richard Casaburi
- Rehabilitation Clinical Trials Center, Los Angeles Biomedical Research Institute at Harbor UCLA Medical Center, Torrance, CA, USA
| | - Gerard Criner
- Division of Pulmonary and Critical Care Medicine, Temple University, Philadelphia, PA, USA
| | - Mark T. Dransfield
- Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama Birmingham, AL, USA
- Lung Health Center University of Alabama Birmingham, Birmingham, AL, USA
- Birmingham VA Medical Center, Birmingham, AL, USA
| | - Barry Make
- Division of Pulmonary, Critical Care, and Sleep Medicine, National Jewish Health, Denver, CO, USA
| | - Kendra K. Schmid
- College of Public Health, University of Nebraska Medical Center, Omaha, NE, USA
| | - Stephen I. Rennard
- Pulmonary and Critical Care Medicine Section, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
- Clinical Development Unit, Early Clinical Development, AstraZeneca, Cambridge, UK
| | - Yazen Alnouti
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA
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Ungaro F, Tacconi C, Massimino L, Corsetto PA, Correale C, Fonteyne P, Piontini A, Garzarelli V, Calcaterra F, Della Bella S, Spinelli A, Carvello M, Rizzo AM, Vetrano S, Petti L, Fiorino G, Furfaro F, Mavilio D, Maddipati KR, Malesci A, Peyrin-Biroulet L, D'Alessio S, Danese S. MFSD2A Promotes Endothelial Generation of Inflammation-Resolving Lipid Mediators and Reduces Colitis in Mice. Gastroenterology 2017; 153:1363-1377.e6. [PMID: 28827082 DOI: 10.1053/j.gastro.2017.07.048] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 07/27/2017] [Accepted: 07/30/2017] [Indexed: 12/24/2022]
Abstract
BACKGROUND & AIMS Alterations in signaling pathways that regulate resolution of inflammation (resolving pathways) contribute to pathogenesis of ulcerative colitis (UC). The resolution process is regulated by lipid mediators, such as those derived from the ω-3 docosahexaenoic acid (DHA), whose esterified form is transported by the major facilitator superfamily domain containing 2A (MFSD2A) through the endothelium of brain, retina, and placenta. We investigated if and how MFSD2A regulates lipid metabolism of gut endothelial cells to promote resolution of intestinal inflammation. METHODS We performed lipidomic and functional analyses of MFSD2A in mucosal biopsies and primary human intestinal microvascular endothelial cells (HIMECs) isolated from surgical specimens from patients with active, resolving UC and healthy individuals without UC (controls). MFSD2A was knocked down in HIMECs with small hairpin RNAs or overexpressed from a lentiviral vector. Human circulating endothelial progenitor cells that overexpress MFSD2A were transferred to CD1 nude mice with dextran sodium sulfate-induced colitis, with or without oral administration of DHA. RESULTS Colonic biopsies from patients with UC had reduced levels of inflammation-resolving DHA-derived epoxy metabolites compared to healthy colon tissues or tissues with resolution of inflammation. Production of these metabolites by HIMECs required MFSD2A, which is required for DHA retention and metabolism in the gut vasculature. In mice with colitis, transplanted endothelial progenitor cells that overexpressed MFSD2A not only localized to the inflamed mucosa but also restored the ability of the endothelium to resolve intestinal inflammation, compared with mice with colitis that did not receive MFSD2A-overexpressing endothelial progenitors. CONCLUSIONS Levels of DHA-derived epoxides are lower in colon tissues from patients with UC than healthy and resolving mucosa. Production of these metabolites by gut endothelium requires MFSD2A; endothelial progenitor cells that overexpress MFSD2A reduce colitis in mice. This pathway might be induced to resolve intestinal inflammation in patients with colitis.
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Affiliation(s)
- Federica Ungaro
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Rozzano, Milan, Italy
| | - Carlotta Tacconi
- Institute of Pharmaceutical Sciences, Pharmacogenomics, Swiss Federal Institute of Technology (ETH), Zurich, Switzerland
| | - Luca Massimino
- School of Medicine and Surgery, University of Milan-Bicocca, Milan, Italy
| | | | - Carmen Correale
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Philippe Fonteyne
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Andrea Piontini
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Rozzano, Milan, Italy
| | - Valeria Garzarelli
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Francesca Calcaterra
- Laboratory of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
| | - Silvia Della Bella
- Laboratory of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
| | - Antonino Spinelli
- Department of Biomedical Sciences, Humanitas University, Rozzano, Milan, Italy; Colon and Rectal Surgery Unit, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Michele Carvello
- Colon and Rectal Surgery Unit, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Angela Maria Rizzo
- Departments of Pharmacology and Biomolecular Science, University of Milan, Milan, Italy
| | - Stefania Vetrano
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Rozzano, Milan, Italy
| | - Luciana Petti
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
| | - Gionata Fiorino
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Federica Furfaro
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Domenico Mavilio
- Laboratory of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
| | - Krishna Rao Maddipati
- Department of Pathology, Lipdomics Core Facility, Wayne State University, Detroit, Michigan
| | - Alberto Malesci
- Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy; Department of Gastroenterology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | - Laurent Peyrin-Biroulet
- Institut National de la Santé et de la Recherche Médicale U954 and Department of Gastroenterology, Nancy University Hospital, Lorraine University, France
| | - Silvia D'Alessio
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy.
| | - Silvio Danese
- IBD Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Rozzano, Milan, Italy.
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Maximiano WMA, da Silva EZM, Santana AC, de Oliveira PT, Jamur MC, Oliver C. Mast Cell Mediators Inhibit Osteoblastic Differentiation and Extracellular Matrix Mineralization. J Histochem Cytochem 2017; 65:723-741. [PMID: 28980852 DOI: 10.1369/0022155417734174] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Mast cells are multifunctional immune cells that participate in many important processes such as defense against pathogens, allergic reactions, and tissue repair. These cells perform their functions through the release of a wide variety of mediators. This release occurs mainly through cross-linking IgE (immunoglobulin E) bound to high affinity IgE receptors by multivalent antigens. The abundance of mast cells in connective tissue, surrounding blood vessels, and their involvement in the early stages of bone repair support the possibility of physiological and pathological interactions between mast cells and osteoblasts. However, the participation of mast cell mediators in osteogenesis is not fully understood. Therefore, the objective of this work was to investigate the role of mast cell mediators in the acquisition of the osteogenic phenotype in vitro. The results show that pooled mast cell mediators can affect proliferation, morphology, and cytoskeleton of osteoblastic cells, and impair the activity and expression of alkaline phosphatase as well as the expression of bone sialoprotein. Also, mast cell mediators inhibit the expression of mRNA for those proteins and inhibit the formation and maturation of calcium nodules and consequently inhibit mineralization. Therefore, mast cell mediators can modulate osteogenesis and are potential therapeutic targets for treatments of bone disorders.
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Affiliation(s)
- William Marcatti Amarú Maximiano
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Elaine Zayas Marcelino da Silva
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Ana Carolina Santana
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Paulo Tambasco de Oliveira
- Department of Morphology, Stomatology, and Basic Pathology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Maria Célia Jamur
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Constance Oliver
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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Warner DR, Liu H, Miller ME, Ramsden CE, Gao B, Feldstein AE, Schuster S, McClain CJ, Kirpich IA. Dietary Linoleic Acid and Its Oxidized Metabolites Exacerbate Liver Injury Caused by Ethanol via Induction of Hepatic Proinflammatory Response in Mice. THE AMERICAN JOURNAL OF PATHOLOGY 2017; 187:2232-2245. [PMID: 28923202 DOI: 10.1016/j.ajpath.2017.06.008] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 06/18/2017] [Accepted: 06/22/2017] [Indexed: 01/22/2023]
Abstract
Alcoholic liver disease is a major human health problem leading to significant morbidity and mortality in the United States and worldwide. Dietary fat plays an important role in alcoholic liver disease pathogenesis. Herein, we tested the hypothesis that a combination of ethanol and a diet rich in linoleic acid (LA) leads to the increased production of oxidized LA metabolites (OXLAMs), specifically 9- and 13-hydroxyoctadecadienoic acids (HODEs), which contribute to a hepatic proinflammatory response exacerbating liver injury. Mice were fed unsaturated (with a high LA content) or saturated fat diets (USF and SF, respectively) with or without ethanol for 10 days, followed by a single binge of ethanol. Compared to SF+ethanol, mice fed USF+ethanol had elevated plasma alanine transaminase levels, enhanced hepatic steatosis, oxidative stress, and inflammation. Plasma and liver levels of 9- and 13-HODEs were increased in response to USF+ethanol feeding. We demonstrated that primarily 9-HODE, but not 13-HODE, induced the expression of several proinflammatory cytokines in vitro in RAW264.7 macrophages. Finally, deficiency of arachidonate 15-lipoxygenase, a major enzyme involved in LA oxidation and OXLAM production, attenuated liver injury and inflammation caused by USF+ethanol feeding but had no effect on hepatic steatosis. This study demonstrates that OXLAM-mediated induction of a proinflammatory response in macrophages is one of the potential mechanisms underlying the progression from alcohol-induced steatosis to alcoholic steatohepatitis.
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Affiliation(s)
- Dennis R Warner
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville School of Medicine, Louisville, Kentucky
| | - Huilin Liu
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville School of Medicine, Louisville, Kentucky; College of Life Science, Jilin University, Changchun, China
| | - Matthew E Miller
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville School of Medicine, Louisville, Kentucky
| | - Christopher E Ramsden
- National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland; National Institute on Aging, Baltimore, Maryland
| | - Bin Gao
- National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland
| | - Ariel E Feldstein
- Division of Gastroenterology, Department of Pediatrics, University of California San Diego, San Diego, California
| | - Susanne Schuster
- Division of Gastroenterology, Department of Pediatrics, University of California San Diego, San Diego, California
| | - Craig J McClain
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville School of Medicine, Louisville, Kentucky; Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, Kentucky; Robley Rex Veterans Medical Center, Louisville, Kentucky; Hepatobiology and Toxicology Program, University of Louisville School of Medicine, Louisville, Kentucky; University of Louisville Alcohol Research Center, University of Louisville School of Medicine, Louisville, Kentucky
| | - Irina A Kirpich
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville School of Medicine, Louisville, Kentucky; Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, Kentucky; Hepatobiology and Toxicology Program, University of Louisville School of Medicine, Louisville, Kentucky; University of Louisville Alcohol Research Center, University of Louisville School of Medicine, Louisville, Kentucky.
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Hepatic overproduction of 13-HODE due to ALOX15 upregulation contributes to alcohol-induced liver injury in mice. Sci Rep 2017; 7:8976. [PMID: 28827690 PMCID: PMC5567196 DOI: 10.1038/s41598-017-02759-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 04/18/2017] [Indexed: 01/12/2023] Open
Abstract
Chronic alcohol feeding causes lipid accumulation and apoptosis in the liver. This study investigated the role of bioactive lipid metabolites in alcohol-induced liver damage and tested the potential of targeting arachidonate 15-lipoxygenase (ALOX15) in treating alcoholic liver disease (ALD). Results showed that chronic alcohol exposure induced hepatocyte apoptosis in association with increased hepatic 13-HODE. Exposure of 13-HODE to Hepa-1c1c7 cells induced oxidative stress, ER stress and apoptosis. 13-HODE also perturbed proteins related to lipid metabolism. HODE-generating ALOX15 was up-regulated by chronic alcohol exposure. Linoleic acid, but not ethanol or acetaldehyde, induced ALOX15 expression in Hepa-1c1c7 cells. ALOX15 knockout prevented alcohol-induced liver damage via attenuation of oxidative stress, ER stress, lipid metabolic disorder, and cell death signaling. ALOX15 inhibitor (PD146176) treatment also significantly alleviated alcohol-induced oxidative stress, lipid accumulation and liver damage. These results demonstrated that activation of ALOX15/13-HODE circuit critically mediates the pathogenesis of ALD. This study suggests that ALOX15 is a potential molecular target for treatment of ALD.
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26
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Al-Khami AA, Zheng L, Del Valle L, Hossain F, Wyczechowska D, Zabaleta J, Sanchez MD, Dean MJ, Rodriguez PC, Ochoa AC. Exogenous lipid uptake induces metabolic and functional reprogramming of tumor-associated myeloid-derived suppressor cells. Oncoimmunology 2017; 6:e1344804. [PMID: 29123954 DOI: 10.1080/2162402x.2017.1344804] [Citation(s) in RCA: 200] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 05/29/2017] [Accepted: 06/15/2017] [Indexed: 01/05/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSC) promote tumor growth by blocking anti-tumor T cell responses. Recent reports show that MDSC increase fatty acid uptake and fatty acid oxidation (FAO) to support their immunosuppressive functions. Inhibition of FAO promoted a therapeutic T cell-mediated anti-tumor effect. Here, we sought to determine the mechanisms by which tumor-infiltrating MDSC increase the uptake of exogenous lipids and undergo metabolic and functional reprogramming to become highly immunosuppressive cells. The results showed that tumor-derived cytokines (G-CSF and GM-CSF) and the subsequent signaling through STAT3 and STAT5 induce the expression of lipid transport receptors with the resulting increase in the uptake of lipids present at high concentrations in the tumor microenvironment. The intracellular accumulation of lipids increases the oxidative metabolism and activates the immunosuppressive mechanisms. Inhibition of STAT3 or STAT5 signaling or genetic depletion of the fatty acid translocase CD36 inhibits the activation of oxidative metabolism and the induction of immunosuppressive function in tumor-infiltrating MDSC and results in a CD8+ T cell-dependent delay in tumor growth. Of note, human tumor-infiltrating and peripheral blood MDSC also upregulate the expression of lipid transport proteins, and lipids promote the generation of highly suppressive human MDSC in vitro. Our data therefore provide a mechanism by which tumor-derived factors and the high lipid content in the tumor microenvironment can cause the profound metabolic and functional changes found in MDSC and suggest novel approaches to prevent or reverse these processes. These results could further enhance the efficacy of cancer immunotherapy.
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Affiliation(s)
- Amir A Al-Khami
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, USA.,Department of Genetics, Louisiana State University Health Sciences Center, New Orleans, LA, USA.,Faculty of Science, Tanta University, Tanta, Egypt
| | - Liqin Zheng
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Luis Del Valle
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, USA.,Department of Pathology, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Fokhrul Hossain
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Dorota Wyczechowska
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Jovanny Zabaleta
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, USA.,Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Maria D Sanchez
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Matthew J Dean
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | | | - Augusto C Ochoa
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, USA.,Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, LA, USA
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27
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Novel n-3 PUFA monoacylglycerides of pharmacological and medicinal interest: Anti-inflammatory and anti-proliferative effects. Eur J Pharmacol 2016; 792:70-77. [PMID: 27818127 DOI: 10.1016/j.ejphar.2016.10.038] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 09/26/2016] [Accepted: 10/31/2016] [Indexed: 12/25/2022]
Abstract
Newly-synthesized, eicosapentaenoic acid monoacylglyceride (MAG-EPA), docosahexaenoic acid monoacylglyceride (MAG-DHA) and docosapentaenoic acid monoacylglyceride (MAG-DPA) have been demonstrated to display beneficial effects in several disorders including chronic airway inflammatory diseases, pulmonary hypertension, rheumatoid arthritis, and lung and colorectal adenocarcinoma. Recent evidence reveals that omega-3 polyunsaturated fatty acid (n-3 PUFA) precursors provide a window to explore the pathobiology of inflammatory disease as well as structural templates for the design of novel pro-resolving precursors that are well absorbed by the gastrointestinal (GI) tract and metabolized into bioactive metabolites. These metabolites are found in blood circulation and tissues thereby mediating numerous immuno-modulatory effects through the activation of specific receptors. Bioactive metabolites regulate cell membrane functions, lipid signaling and gene expressions encoding for enzymes responsible for lipid storage and fatty acid metabolism. This review highlights recent experimental findings regarding n-3 PUFA monoacylglyceride research, as well as the pharmacological and medicinal relevance of these stereospecific derivatives in the resolution of chronic inflammatory diseases.
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Maddipati KR, Romero R, Chaiworapongsa T, Chaemsaithong P, Zhou SL, Xu Z, Tarca AL, Kusanovic JP, Gomez R, Chaiyasit N, Honn KV. Lipidomic analysis of patients with microbial invasion of the amniotic cavity reveals up-regulation of leukotriene B4. FASEB J 2016; 30:3296-3307. [PMID: 27312808 PMCID: PMC5024690 DOI: 10.1096/fj.201600583r] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 06/07/2016] [Indexed: 12/26/2022]
Abstract
Bioactive lipids derived from the metabolism of polyunsaturated fatty acids are important mediators of the inflammatory response. Labor per se is considered a sterile inflammatory process. Intra-amniotic inflammation (IAI) due to microorganisms (i.e., intra-amniotic infection) or danger signals (i.e., sterile IAI) has been implicated in the pathogenesis of preterm labor and clinical chorioamnionitis at term. Early and accurate diagnosis of microbial invasion of the amniotic cavity (MIAC) requires analysis of amniotic fluid (AF). It is possible that IAI caused by microorganisms is associated with a stereotypic lipidomic profile, and that analysis of AF may help in the identification of patients with this condition. To test this hypothesis, we analyzed the fatty acyl lipidome of AF by liquid chromatography-mass spectrometry from patients in spontaneous labor at term and preterm gestations. We report that the AF concentrations of proinflammatory lipid mediators of the 5-lipoxygenase pathway are significantly higher in MIAC than in cases of sterile IAI. These results suggest that the concentrations of 5-lipoxygenase metabolites of arachidonic acid, 5-hydroxyeicosatetraenoic acid, and leukotriene B4 in particular could serve as potential biomarkers of MIAC. This finding could have important implications for the rapid identification of patients who may benefit from anti-microbial treatment.-Maddipati, K. R., Romero, R., Chaiworapongsa ,T., Chaemsaithong, P., Zhou, S.-L., Xu, Z., Tarca, A. L., Kusanovic, J. P., Gomez, R., Chaiyasit, N., Honn, K. V. Lipidomic analysis of patients with microbial invasion of the amniotic cavity reveals up-regulation of leukotriene B4.
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Affiliation(s)
- Krishna Rao Maddipati
- Department of Pathology, Wayne State University School of Medicine, Detroit, Michigan, USA; Lipidomics Core Facility, Wayne State University School of Medicine, Detroit, Michigan, USA;
| | - Roberto Romero
- Perinatology Research Branch, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, USA; Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan, USA; Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, Michigan, USA; Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, USA
| | - Tinnakorn Chaiworapongsa
- Perinatology Research Branch, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, USA; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Piya Chaemsaithong
- Perinatology Research Branch, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, USA; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Sen-Lin Zhou
- Department of Pathology, Wayne State University School of Medicine, Detroit, Michigan, USA; Lipidomics Core Facility, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Zhonghui Xu
- Perinatology Research Branch, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, USA
| | - Adi L Tarca
- Perinatology Research Branch, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, USA; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA; Department of Computer Science, Wayne State University, Detroit, Michigan, USA
| | - Juan Pedro Kusanovic
- Perinatology Research Branch, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, USA; Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Department of Obstetrics and Gynecology, Sótero del Río Hospital, Santiago, Chile Division of Obstetrics and Gynecology, Pontificia Universidad Católica de Chile, Santiago, Chile; and
| | - Ricardo Gomez
- Division of Obstetrics and Gynecology, Pontificia Universidad Católica de Chile, Santiago, Chile; and Center for Perinatal Diagnosis (CEDIP), Research and Academic Innovations, Hospital Clínico La Florida, Santiago, Chile
| | - Noppadol Chaiyasit
- Perinatology Research Branch, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, USA; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Kenneth V Honn
- Department of Pathology, Wayne State University School of Medicine, Detroit, Michigan, USA
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Lacy SH, Woeller CF, Thatcher TH, Maddipati KR, Honn KV, Sime PJ, Phipps RP. Human lung fibroblasts produce proresolving peroxisome proliferator-activated receptor-γ ligands in a cyclooxygenase-2-dependent manner. Am J Physiol Lung Cell Mol Physiol 2016; 311:L855-L867. [PMID: 27612965 DOI: 10.1152/ajplung.00272.2016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 08/31/2016] [Indexed: 11/22/2022] Open
Abstract
Human lung fibroblasts (HLFs) act as innate immune sentinel cells that amplify the inflammatory response to injurious stimuli. Here, we use targeted lipidomics to explore the hypothesis that HLFs also play an active role in the resolution of inflammation. We detected cyclooxygenase-2 (COX-2)-dependent production of both proinflammatory and proresolving prostaglandins (PGs) in conditioned culture medium from HLFs treated with a proinflammatory stimulus, IL-1β. Among the proresolving PGs in the HLF lipidome were several known ligands for peroxisome proliferator-activated receptor-γ (PPARγ), a transcription factor whose activation in the lung yields potent anti-inflammatory, antifibrotic, and proresolving effects. Next, we used a cell-based luciferase reporter to confirm the ability of HLF supernatants to activate PPARγ, demonstrating, for the first time, that primary HLFs activated with proinflammatory IL-1β or cigarette smoke extract produce functional PPARγ ligands; this phenomenon is temporally regulated, COX-2- and lipocalin-type PGD synthase-dependent, and enhanced by arachidonic acid supplementation. Finally, we used luciferase reporter assays to show that several of the PGs in the lipidome of activated HLFs independently activate PPARγ and/or inhibit NFκB. These results indicate that HLFs, as immune sentinels, regulate both proinflammatory and proresolving responses to injurious stimuli. This novel endogenous resolution pathway represents a new therapeutic target for globally important inflammatory diseases such as chronic obstructive pulmonary disease.
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Affiliation(s)
- Shannon H Lacy
- Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Collynn F Woeller
- Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Thomas H Thatcher
- Division of Pulmonary Diseases and Critical Care, Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York.,Lung Biology and Disease Program, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Krishna Rao Maddipati
- Lipidomics Core Facility, Department of Pathology, Bioactive Lipids Research Program, Wayne State University School of Medicine, Karmanos Cancer Institute, Detroit, Michigan; and
| | - Kenneth V Honn
- Bioactive Lipids Research Program, Department of Pathology, Wayne State University School of Medicine, Karmanos Cancer Institute, Detroit, Michigan
| | - Patricia J Sime
- Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York.,Division of Pulmonary Diseases and Critical Care, Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York.,Lung Biology and Disease Program, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Richard P Phipps
- Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York; .,Division of Pulmonary Diseases and Critical Care, Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York.,Lung Biology and Disease Program, University of Rochester School of Medicine and Dentistry, Rochester, New York
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30
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Markworth JF, Kaur G, Miller EG, Larsen AE, Sinclair AJ, Maddipati KR, Cameron-Smith D. Divergent shifts in lipid mediator profile following supplementation with n-3 docosapentaenoic acid and eicosapentaenoic acid. FASEB J 2016; 30:3714-3725. [PMID: 27461565 DOI: 10.1096/fj.201600360r] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 07/11/2016] [Indexed: 12/31/2022]
Abstract
In contrast to the well-characterized effects of specialized proresolving lipid mediators (SPMs) derived from eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), little is known about the metabolic fate of the intermediary long-chain (LC) n-3 polyunsaturated fatty acid (PUFA) docosapentaenoic acid (DPA). In this double blind crossover study, shifts in circulating levels of n-3 and n-6 PUFA-derived bioactive lipid mediators were quantified by an unbiased liquid chromatography-tandem mass spectrometry lipidomic approach. Plasma was obtained from human subjects before and after 7 d of supplementation with pure n-3 DPA, n-3 EPA or placebo (olive oil). DPA supplementation increased the SPM resolvin D5n-3DPA (RvD5n-3DPA) and maresin (MaR)-1, the DHA vicinal diol 19,20-dihydroxy-DPA and n-6 PUFA derived 15-keto-PG E2 (15-keto-PGE2). EPA supplementation had no effect on any plasma DPA or DHA derived mediators, but markedly elevated monohydroxy-eicosapentaenoic acids (HEPEs), including the e-series resolvin (RvE) precursor 18-HEPE; effects not observed with DPA supplementation. These data show that dietary n-3 DPA and EPA have highly divergent effects on human lipid mediator profile, with no overlap in PUFA metabolites formed. The recently uncovered biologic activity of n-3 DPA docosanoids and their marked modulation by dietary DPA intake reveals a unique and specific role of n-3 DPA in human physiology.-Markworth, J. F., Kaur, G., Miller, E. G., Larsen, A. E., Sinclair, A. J., Maddipati, K. R., Cameron-Smith, D. Divergent shifts in lipid mediator profile following supplementation with n-3 docosapentaenoic acid and eicosapentaenoic acid.
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Affiliation(s)
| | - Gunveen Kaur
- Centre for Physical Activity and Nutrition Research, School of Exercise and Nutrition Sciences, Deakin University, Melbourne, Victoria, Australia
| | - Eliza G Miller
- Centre for Physical Activity and Nutrition Research, School of Exercise and Nutrition Sciences, Deakin University, Melbourne, Victoria, Australia
| | - Amy E Larsen
- Department of Physiology, Anatomy and Microbiology, La Trobe University Melbourne, Victoria, Australia
| | | | - Krishna Rao Maddipati
- Department of Pathology, Lipidomics Core Facility, Wayne State University, Detroit, Michigan, USA; and.,Karmanos Cancer Institute, Wayne State University, Detroit, Michigan, USA
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31
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Gartung A, Zhao J, Chen S, Mottillo E, VanHecke GC, Ahn YH, Maddipati KR, Sorokin A, Granneman J, Lee MJ. Characterization of Eicosanoids Produced by Adipocyte Lipolysis: IMPLICATION OF CYCLOOXYGENASE-2 IN ADIPOSE INFLAMMATION. J Biol Chem 2016; 291:16001-10. [PMID: 27246851 DOI: 10.1074/jbc.m116.725937] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Indexed: 12/29/2022] Open
Abstract
Excessive adipocyte lipolysis generates lipid mediators and triggers inflammation in adipose tissue. However, the specific roles of lipolysis-generated mediators in adipose inflammation remain to be elucidated. In the present study, cultured 3T3-L1 adipocytes were treated with isoproterenol to activate lipolysis and the fatty acyl lipidome of released lipids was determined by using LC-MS/MS. We observed that β-adrenergic activation elevated levels of approximately fifty lipid species, including metabolites of cyclooxygenases, lipoxygenases, epoxygenases, and other sources. Moreover, we found that β-adrenergic activation induced cyclooxygenase 2 (COX-2), not COX-1, expression in a manner that depended on activation of hormone-sensitive lipase (HSL) in cultured adipocytes and in the epididymal white adipose tissue (EWAT) of C57BL/6 mice. We found that lipolysis activates the JNK/NFκB signaling pathway and inhibition of the JNK/NFκB axis abrogated the lipolysis-stimulated COX-2 expression. In addition, pharmacological inhibition of COX-2 activity diminished levels of COX-2 metabolites during lipolytic activation. Inhibition of COX-2 abrogated the induction of CCL2/MCP-1 expression by β-adrenergic activation and prevented recruitment of macrophage/monocyte to adipose tissue. Collectively, our data indicate that excessive adipocyte lipolysis activates the JNK/NFκB pathway leading to the up-regulation of COX-2 expression and recruitment of inflammatory macrophages.
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Affiliation(s)
- Allison Gartung
- From the Bioactive Lipid Research Program, Department of Pathology
| | - Jiawei Zhao
- From the Bioactive Lipid Research Program, Department of Pathology
| | - Simon Chen
- From the Bioactive Lipid Research Program, Department of Pathology
| | | | | | | | | | - Andrey Sorokin
- Microbiology and Molecular Genetics, Medical College of Wisconsin, Milwaukee, Wisconsin 53226
| | - James Granneman
- Center for Integrative Metabolic and Endocrine Research, Center for Molecular Medicine and Genetics
| | - Menq-Jer Lee
- From the Bioactive Lipid Research Program, Department of Pathology, Cardiovascular Research Institute, and Karmanos Cancer Institute, Wayne State University, Detroit, Michigan 48202 and
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32
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Tang K, Cai Y, Joshi S, Tovar E, Tucker SC, Maddipati KR, Crissman JD, Repaskey WT, Honn KV. Convergence of eicosanoid and integrin biology: 12-lipoxygenase seeks a partner. Mol Cancer 2015; 14:111. [PMID: 26037302 PMCID: PMC4453211 DOI: 10.1186/s12943-015-0382-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Accepted: 05/08/2015] [Indexed: 11/28/2022] Open
Abstract
Background Integrins and enzymes of the eicosanoid pathway are both well-established contributors to cancer. However, this is the first report of the interdependence of the two signaling systems. In a screen for proteins that interacted with, and thereby potentially regulated, the human platelet-type 12-lipoxygenase (12-LOX, ALOX12), we identified the integrin β4 (ITGB4). Methods Using a cultured mammalian cell model, we have demonstrated that ITGB4 stimulation leads to recruitment of 12-LOX from the cytosol to the membrane where it physically interacts with the integrin to become enzymatically active to produce 12(S)-HETE, a known bioactive lipid metabolite that regulates numerous cancer phenotypes. Results The net effect of the interaction was the prevention of cell death in response to starvation. Additionally, regulation of β4-mediated, EGF-stimulated invasion was shown to be dependent on 12-LOX, and downstream Erk signaling in response to ITGB4 activation also required 12-LOX. Conclusions This is the first report of an enzyme of the eicosanoid pathway being recruited to and regulated by activated β4 integrin. Integrin β4 has recently been shown to induce expansion of prostate tumor progenitors and there is a strong correlation between stage/grade of prostate cancer and 12-LOX expression. The 12-LOX enzymatic product, 12(S)-HETE, regulates angiogenesis and cell migration in many cancer types. Therefore, disruption of integrin β4-12LOX interaction could reduce the pro-inflammatory oncogenic activity of 12-LOX. This report on the consequences of 12-LOX and ITGB4 interaction sets a precedent for the linkage of integrin and eicosanoid biology through direct protein-protein association. Electronic supplementary material The online version of this article (doi:10.1186/s12943-015-0382-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Keqin Tang
- Department of Radiation Oncology, John D. Dingell VA Medical Center, 48201, Detroit, MI, USA. .,Department of Pathology, Bioactive Lipids Research Program, Wayne State University School of Medicine, Karmanos Cancer Institute, 431 Chemistry Building, 48202, Detroit, MI, USA.
| | - Yinlong Cai
- Department of Pathology, Bioactive Lipids Research Program, Wayne State University School of Medicine, Karmanos Cancer Institute, 431 Chemistry Building, 48202, Detroit, MI, USA.
| | - Sangeeta Joshi
- Department of Pathology, Bioactive Lipids Research Program, Wayne State University School of Medicine, Karmanos Cancer Institute, 431 Chemistry Building, 48202, Detroit, MI, USA. .,Present address: Roswell Park Cancer Institute, 14263, Buffalo, New York, USA.
| | - Elizabeth Tovar
- Department of Pathology, Bioactive Lipids Research Program, Wayne State University School of Medicine, Karmanos Cancer Institute, 431 Chemistry Building, 48202, Detroit, MI, USA. .,Program in Cancer Biology, Wayne State University School of Medicine, 48202, Detroit, MI, USA. .,Present address: Van Andel Institute, 49503, Grand Rapids, MI, USA.
| | - Stephanie C Tucker
- Department of Pathology, Bioactive Lipids Research Program, Wayne State University School of Medicine, Karmanos Cancer Institute, 431 Chemistry Building, 48202, Detroit, MI, USA.
| | - Krishna Rao Maddipati
- Department of Pathology, Bioactive Lipids Research Program, Wayne State University School of Medicine, Karmanos Cancer Institute, 431 Chemistry Building, 48202, Detroit, MI, USA.
| | - John D Crissman
- Department of Pathology, Bioactive Lipids Research Program, Wayne State University School of Medicine, Karmanos Cancer Institute, 431 Chemistry Building, 48202, Detroit, MI, USA.
| | - William T Repaskey
- Department of Internal Medicine, University of Michigan, 48109, Ann Arbor, MI, USA.
| | - Kenneth V Honn
- Department of Pathology, Bioactive Lipids Research Program, Wayne State University School of Medicine, Karmanos Cancer Institute, 431 Chemistry Building, 48202, Detroit, MI, USA.
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Vasudevan A, Yu Y, Banerjee S, Woods J, Farhana L, Rajendra SG, Patel A, Dyson G, Levi E, Maddipati KR, Majumdar APN, Nangia-Makker P. Omega-3 fatty acid is a potential preventive agent for recurrent colon cancer. Cancer Prev Res (Phila) 2014; 7:1138-48. [PMID: 25193342 DOI: 10.1158/1940-6207.capr-14-0177] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Increasing evidence supports the contention that many malignancies, including sporadic colorectal cancer, are driven by the self-renewing, chemotherapy-resistant cancer stem/stem-like cells (CSC/CSLC), underscoring the need for improved preventive and therapeutic strategies targeting CSCs/CSLCs. Omega-3 polyunsaturated fatty acids (ω-3 PUFA), have been reported to inhibit the growth of primary tumors, but their potential as a preventive agent for recurring cancers is unexplored. The primary objectives of this investigation are (i) to examine whether eicosapentaenoic acid (EPA; one of the ω-3 PUFA) synergizes with FuOx (5-FU+Oxaliplatin), the backbone of colon cancer chemotherapy, and (ii) whether EPA by itself or in combination with conventional chemotherapy prevents the recurrence of colon cancer via eliminating/suppressing CSCs/CSLCs. FuOx-resistant (chemoresistant; CR) colon cancer cells, highly enriched in CSCs, were used for this study. Although EPA alone was effective, combination of EPA and FuOx was more potent in (i) inhibiting cell growth, colonosphere formation, and sphere-forming frequency, (ii) increasing sphere disintegration, (iii) suppressing the growth of SCID mice xenografts of CR colon cancer cells, and (iv) decreasing proinflammatory metabolites in mice. In addition, EPA + FuOx caused a reduction in CSC/CSLC population. The growth reduction by this regimen is the result of increased apoptosis as evidenced by PARP cleavage. Furthermore, increased pPTEN, decreased pAkt, normalization of β-catenin expression, localization, and transcriptional activity by EPA suggests a role for the PTEN-Akt axis and Wnt signaling in regulating this process. Our data suggest that EPA by itself or in combination with FuOx could be an effective preventive strategy for recurring colorectal cancer.
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Affiliation(s)
- Anita Vasudevan
- Veterans Affairs Medical Center, Wayne State University, Detroit, Michigan
| | - Yingjie Yu
- Veterans Affairs Medical Center, Wayne State University, Detroit, Michigan. Department of Internal Medicine, Wayne State University, Detroit, Michigan
| | - Sanjeev Banerjee
- Karmanos Cancer Institute, Wayne State University, Detroit, Michigan. Department of Pathology, Wayne State University, Detroit, Michigan
| | - James Woods
- Veterans Affairs Medical Center, Wayne State University, Detroit, Michigan
| | - Lulu Farhana
- Veterans Affairs Medical Center, Wayne State University, Detroit, Michigan. Department of Internal Medicine, Wayne State University, Detroit, Michigan
| | - Sindhu G Rajendra
- Veterans Affairs Medical Center, Wayne State University, Detroit, Michigan
| | - Aamil Patel
- Veterans Affairs Medical Center, Wayne State University, Detroit, Michigan
| | - Gregory Dyson
- Karmanos Cancer Institute, Wayne State University, Detroit, Michigan
| | - Edi Levi
- Veterans Affairs Medical Center, Wayne State University, Detroit, Michigan. Department of Pathology, Wayne State University, Detroit, Michigan
| | - Krishna Rao Maddipati
- Karmanos Cancer Institute, Wayne State University, Detroit, Michigan. Department of Pathology, Wayne State University, Detroit, Michigan. Lipidomics Core Facility, Wayne State University, Detroit, Michigan
| | - Adhip P N Majumdar
- Veterans Affairs Medical Center, Wayne State University, Detroit, Michigan. Department of Internal Medicine, Wayne State University, Detroit, Michigan. Karmanos Cancer Institute, Wayne State University, Detroit, Michigan.
| | - Pratima Nangia-Makker
- Veterans Affairs Medical Center, Wayne State University, Detroit, Michigan. Department of Internal Medicine, Wayne State University, Detroit, Michigan. Karmanos Cancer Institute, Wayne State University, Detroit, Michigan.
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Maddipati KR, Romero R, Chaiworapongsa T, Zhou SL, Xu Z, Tarca AL, Kusanovic JP, Munoz H, Honn KV. Eicosanomic profiling reveals dominance of the epoxygenase pathway in human amniotic fluid at term in spontaneous labor. FASEB J 2014; 28:4835-46. [PMID: 25059230 DOI: 10.1096/fj.14-254383] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Lipid mediators play an important role in reproductive biology, especially, in parturition. Enhanced biosynthesis of eicosanoids, such as prostaglandin E2 (PGE2) and PGF2α, precedes the onset of labor as a result of increased expression of inducible cyclooxygenase 2 (COX-2) in placental tissues. Metabolism of arachidonic acid results in bioactive lipid mediators beyond prostaglandins that could significantly influence myometrial activity. Therefore, an unbiased lipidomic approach was used to profile the arachidonic acid metabolome of amniotic fluid. In this study, liquid chromatography-mass spectrometry was used for the first time to quantitate these metabolites in human amniotic fluid by comparing patients at midtrimester, at term but not in labor, and at term and in spontaneous labor. In addition to exposing novel aspects of COX pathway metabolism, this lipidomic study revealed a dramatic increase in epoxygenase- and lipoxygenase-pathway-derived lipid mediators in spontaneous labor with remarkable product selectivity. Despite their recognition as anti-inflammatory lipid mediators and regulators of ion channels, little is known about the epoxygenase pathway in labor. Epoxygenase pathway metabolites are established regulators of vascular homeostasis in cardiovascular and renal physiology. Their presence as the dominant lipid mediators in spontaneous labor at term portends a yet undiscovered physiological function in parturition.
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Affiliation(s)
- Krishna Rao Maddipati
- Bioactive Lipids Research Program, Department of Pathology, Lipidomics Core Facility, and
| | - Roberto Romero
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA; Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan, USA; Department of Epidemiology, Michigan State University, East Lansing, Michigan, USA
| | - Tinnakorn Chaiworapongsa
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA; Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA
| | - Sen-Lin Zhou
- Bioactive Lipids Research Program, Department of Pathology, Lipidomics Core Facility, and
| | - Zhonghui Xu
- Department of Computer Science, Wayne State University, Detroit, Michigan, USA
| | - Adi L Tarca
- Department of Computer Science, Wayne State University, Detroit, Michigan, USA
| | - Juan Pedro Kusanovic
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA; Department of Obstetrics and Gynecology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile; Sótero del Río Hospital, Santiago, Chile; and
| | | | - Kenneth V Honn
- Bioactive Lipids Research Program, Department of Pathology
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35
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Zhang Y, Hoda MN, Zheng X, Li W, Luo P, Maddipati KR, Seki T, Ergul A, Wang MH. Combined therapy with COX-2 inhibitor and 20-HETE inhibitor reduces colon tumor growth and the adverse effects of ischemic stroke associated with COX-2 inhibition. Am J Physiol Regul Integr Comp Physiol 2014; 307:R693-703. [PMID: 24990856 DOI: 10.1152/ajpregu.00422.2013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
20-Hydroxyeicosatetraenoic acid (20-HETE), Cyp4a-derived eicosanoid, is a lipid mediator that promotes tumor growth, as well as causing detrimental effects in cerebral circulation. We determined whether concurrent inhibition of cyclooxygenase-2 (COX-2) and 20-HETE affects colon tumor growth and ischemic stroke outcomes. The expression of Cyp4a and COXs and production of 20-HETE and PGE2 were determined in murine colon carcinoma (MC38) cells. We then examined the effects of combined treatment with rofecoxib, a potent COX-2 inhibitor, and HET0016, a potent Cyp4a inhibitor, on the growth and proliferation of MC38 cells. Subsequently, we tested the effects of HET0016 plus rofecoxib in MC38 tumor and ischemic stroke models. Cyp4a and COXs are highly expressed in MC38 cells. Respectively, HET0016 and rofecoxib inhibited 20-HETE and PGE2 formation in MC38 cells. Moreover, rofecoxib combined with HET0016 had greater inhibitory effects on the growth and proliferation of MC38 cells than did rofecoxib alone. Importantly, rofecoxib combined with HET0016 provided greater inhibition on tumor growth than did rofecoxib alone in MC38 tumor-bearing mice. Prolonged treatment with rofecoxib selectively induced circulating 20-HETE levels and caused cerebrovascular damage after ischemic stroke, whereas therapy with rofecoxib and HET0016 attenuated 20-HETE levels and reduced rofecoxib-induced cerebrovascular damage and stroke outcomes during anti-tumor therapy. Thus these results demonstrate that combination therapy with rofecoxib and HET0016 provides a new treatment of colon tumor, which can not only enhance the anti-tumor efficacy of rofecoxib, but also reduce rofecoxib-induced cerebrovascular damage and stroke outcomes.
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Affiliation(s)
- Yi Zhang
- Department of Physiology, Georgia Regents University, Augusta, Georgia; Department of Orthopedics, Puren Hospital, Wuhan University of Science and Technology, Wuhan, China
| | - Md Nasrul Hoda
- Department of Medical Laboratory, Imaging & Radiologic Sciences, College of Allied Health Sciences, Georgia Regents University, Augusta, Georgia
| | - Xuan Zheng
- Institute of Molecular Medicine and Genetics, Georgia Regents University, Augusta, Georgia; Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Weiguo Li
- Department of Physiology, Georgia Regents University, Augusta, Georgia
| | - Pengcheng Luo
- Huangshi Central Hospital, Hubei Polytechnic University and Hubei Key Laboratory of Kidney Disease, Pathogenesis, and Intervention, Huangshi, Hubei, China; and
| | - Krishna Rao Maddipati
- Department of Pathology and WSU Lipidomics Core, Wayne State University, Detroit, Michigan
| | - Tsugio Seki
- Department of Physiology, Georgia Regents University, Augusta, Georgia
| | - Adviye Ergul
- Department of Physiology, Georgia Regents University, Augusta, Georgia
| | - Mong-Heng Wang
- Department of Physiology, Georgia Regents University, Augusta, Georgia;
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Martin-Venegas R, Jáuregui O, Moreno JJ. Liquid chromatography-tandem mass spectrometry analysis of eicosanoids and related compounds in cell models. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 964:41-9. [PMID: 24932539 DOI: 10.1016/j.jchromb.2014.05.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Revised: 05/07/2014] [Accepted: 05/08/2014] [Indexed: 11/28/2022]
Abstract
Enzyme- and free radical-catalyzed oxidation of polyunsaturated fatty acids (PUFAs) produces the eicosanoids, docosanoids and octadecanoids. This large family of potent bioactive lipids is involved in many biochemical and signaling pathways which are implicated in physiological and pathophysiological processes and can be viable therapeutic targets. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) offers selectivity, sensitivity, robustness and high resolution and is able to analyze a large number of eicosanoids in biological samples in a short time. The present article reviews and discusses reported LC-MS/MS methods and the results obtained from their application in cell models. Reliable analytical outcomes are critically important for understanding physiological and pathophysiological cellular processes, such as inflammation, diseases with inflammatory components (e.g., cardiovascular disease, diabetes, metabolic syndrome), as well as cancer. Reported findings obtained by using the LC-MS/MS methodology in cell systems may have important predictive as well as nutritional and pharmacological implications. We conclude that the LC-MS/MS methodology is a versatile and reliable analytical tool for the simultaneous analysis of multiple PUFA-derived metabolites including the eicosanoids in cell culture samples at concentrations on the pM/nM threshold, i.e. at baseline and after stimulation.
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Affiliation(s)
- Raquel Martin-Venegas
- Departament de Fisiologia, Facultat de Farmacia, Universitat de Barcelona, 08028-Barcelona, Spain
| | - Olga Jáuregui
- Centres Cientifics i Tecnologics (CCiTUB), Universitat de Barcelona, 08028-Barcelona, Spain
| | - Juan Jose Moreno
- Departament de Fisiologia, Facultat de Farmacia, Universitat de Barcelona, 08028-Barcelona, Spain.
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Winslow V, Vaivoda R, Vasilyev A, Dombkowski D, Douaidy K, Stark C, Drake J, Guilliams E, Choudhary D, Preffer F, Stoilov I, Christmas P. Altered leukotriene B4 metabolism in CYP4F18-deficient mice does not impact inflammation following renal ischemia. Biochim Biophys Acta Mol Cell Biol Lipids 2014; 1841:868-79. [PMID: 24632148 DOI: 10.1016/j.bbalip.2014.03.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2013] [Revised: 02/18/2014] [Accepted: 03/05/2014] [Indexed: 01/26/2023]
Abstract
Inflammatory responses to infection and injury must be restrained and negatively regulated to minimize damage to host tissue. One proposed mechanism involves enzymatic inactivation of the pro-inflammatory mediator leukotriene B4, but it is difficult to dissect the roles of various metabolic enzymes and pathways. A primary candidate for a regulatory pathway is omega oxidation of leukotriene B4 in neutrophils, presumptively by CYP4F3A in humans and CYP4F18 in mice. This pathway generates ω, ω-1, and ω-2 hydroxylated products of leukotriene B4, depending on species. We created mouse models targeting exons 8 and 9 of the Cyp4f18 allele that allows both conventional and conditional knockouts of Cyp4f18. Neutrophils from wild-type mice convert leukotriene B4 to 19-hydroxy leukotriene B4, and to a lesser extent 18-hydroxy leukotriene B4, whereas these products were not detected in neutrophils from conventional Cyp4f18 knockouts. A mouse model of renal ischemia-reperfusion injury was used to investigate the consequences of loss of CYP4F18 in vivo. There were no significant changes in infiltration of neutrophils and other leukocytes into kidney tissue as determined by flow cytometry and immunohistochemistry, or renal injury as assessed by histological scoring and measurement of blood urea nitrogen. It is concluded that CYP4F18 is necessary for omega oxidation of leukotriene B4 in neutrophils, and is not compensated by other CYP enzymes, but loss of this metabolic pathway is not sufficient to impact inflammation and injury following renal ischemia-reperfusion in mice.
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Affiliation(s)
- Valeria Winslow
- Nephrology Division, Department of Medicine, Massachusetts General Hospital, Charlestown, MA 02129, USA
| | - Rachel Vaivoda
- Nephrology Division, Department of Medicine, Massachusetts General Hospital, Charlestown, MA 02129, USA
| | - Aleksandr Vasilyev
- Nephrology Division, Department of Medicine, Massachusetts General Hospital, Charlestown, MA 02129, USA
| | - David Dombkowski
- Department of Pathology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Karim Douaidy
- Nephrology Division, Department of Medicine, Massachusetts General Hospital, Charlestown, MA 02129, USA
| | - Christopher Stark
- Nephrology Division, Department of Medicine, Massachusetts General Hospital, Charlestown, MA 02129, USA
| | - Justin Drake
- Biology Department, Radford University, Radford, VA 24142, USA
| | - Evin Guilliams
- Biology Department, Radford University, Radford, VA 24142, USA
| | - Dharamainder Choudhary
- Department of Surgery, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Frederic Preffer
- Department of Pathology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Ivaylo Stoilov
- Department of Surgery, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Peter Christmas
- Nephrology Division, Department of Medicine, Massachusetts General Hospital, Charlestown, MA 02129, USA; Biology Department, Radford University, Radford, VA 24142, USA.
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Kortz L, Dorow J, Ceglarek U. Liquid chromatography-tandem mass spectrometry for the analysis of eicosanoids and related lipids in human biological matrices: a review. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 964:1-11. [PMID: 24583205 DOI: 10.1016/j.jchromb.2014.01.046] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 12/30/2013] [Accepted: 01/28/2014] [Indexed: 01/12/2023]
Abstract
Today, there is an increasing number of liquid chromatography tandem-mass spectrometric (LC-MS/MS) methods for the analysis of eicosanoids and related lipids in biological matrices. An overview of currently applied LC-MS/MS methods is given with attention to sample preparation strategies, chromatographic separation including ultra high performance liquid chromatography (UHPLC) and chiral separation, as well as to mass spectrometric detection using multiple reacting monitoring (MRM). Further, the application in recent clinical research is reviewed with focus on preanalytical aspects prior to LC-MS/MS analysis as well as applications in major diseases of Western civilization including respiratory diseases, diabetes, cancer, liver diseases, atherosclerosis, and neurovascular diseases.
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Affiliation(s)
- Linda Kortz
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Liebigstr. 27, 04103 Leipzig, Germany; LIFE - Leipzig Research Center for Civilization Diseases, Universität Leipzig, Germany
| | - Juliane Dorow
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Liebigstr. 27, 04103 Leipzig, Germany; LIFE - Leipzig Research Center for Civilization Diseases, Universität Leipzig, Germany
| | - Uta Ceglarek
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Liebigstr. 27, 04103 Leipzig, Germany; LIFE - Leipzig Research Center for Civilization Diseases, Universität Leipzig, Germany.
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Schuh CD, Pierre S, Weigert A, Weichand B, Altenrath K, Schreiber Y, Ferreiros N, Zhang DD, Suo J, Treutlein EM, Henke M, Kunkel H, Grez M, Nüsing R, Brüne B, Geisslinger G, Scholich K. Prostacyclin mediates neuropathic pain through interleukin 1β-expressing resident macrophages. Pain 2013; 155:545-555. [PMID: 24333781 DOI: 10.1016/j.pain.2013.12.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 12/03/2013] [Accepted: 12/04/2013] [Indexed: 10/25/2022]
Abstract
Prostacyclin is an important mediator of peripheral pain sensation. Here, we investigated its potential participation in mediating neuropathic pain and found that prostacyclin receptor (IP) knockout mice exhibited markedly decreased pain behavior. Application of an IP antagonist to the injury site or selective IP deficiency in myeloid cells mimicked the antinociceptive effect observed in IP knockout mice. At the site of nerve injury, IP was expressed in interleukin (IL) 1β-containing resident macrophages, which were less common in IP knockout mice. Local administration of the IP agonist cicaprost inhibited macrophage migration in vitro and promoted accumulation of IP- and IL1β-expressing cells as well as an increase of IL1β concentrations at the application site in vivo. Fittingly, the IL1-receptor antagonist anakinra (IL-1ra) decreased neuropathic pain behavior in wild-type mice but not in IP knockout mice. Finally, continuous, but not single administration, of the cyclooxygenase inhibitor meloxicam early after nerve injury decreased pain behavior and the number of resident macrophages. Thus, early synthesis of prostacyclin at the site of injury causes accumulation of IL1β-expressing macrophages as a key step in neuropathic pain after traumatic injury.
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Affiliation(s)
- Claus Dieter Schuh
- Institute of Clinical Pharmacology, Pharmazentrum Frankfurt/ZAFES, Hospital of the Goethe-University, Frankfurt, Germany Institute of Biochemistry I, Goethe-University, Frankfurt, Germany Institute of Biomedical Research, Georg-Speyer-Haus, Frankfurt, Germany
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40
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Microdialysis sampling techniques applied to studies of the foreign body reaction. Eur J Pharm Sci 2013; 57:74-86. [PMID: 24269987 DOI: 10.1016/j.ejps.2013.11.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Accepted: 11/05/2013] [Indexed: 02/06/2023]
Abstract
Implanted materials including drug delivery devices and chemical sensors undergo what is termed the foreign body reaction (FBR). Depending on the device and its intended application, the FBR can have differing consequences. An extensive scientific research effort has been devoted to elucidating the cellular and molecular mechanisms that drive the FBR. Important, yet relatively unexplored, research includes the localized tissue biochemistry and the chemical signaling events that occur throughout the FBR. This review provides an overview of the mechanisms of the FBR, describes how the FBR affects different implanted devices, and illustrates the role that microdialysis sampling can play in further elucidating the chemical communication processes that drive FBR outcomes.
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Markworth JF, Vella L, Lingard BS, Tull DL, Rupasinghe TW, Sinclair AJ, Maddipati KR, Cameron-Smith D. Human inflammatory and resolving lipid mediator responses to resistance exercise and ibuprofen treatment. Am J Physiol Regul Integr Comp Physiol 2013; 305:R1281-96. [PMID: 24089379 DOI: 10.1152/ajpregu.00128.2013] [Citation(s) in RCA: 117] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Classical proinflammatory eicosanoids, and more recently discovered lipid mediators with anti-inflammatory and proresolving bioactivity, exert a complex role in the initiation, control, and resolution of inflammation. Using a targeted lipidomics approach, we investigated circulating lipid mediator responses to resistance exercise and treatment with the NSAID ibuprofen. Human subjects undertook a single bout of unaccustomed resistance exercise (80% of one repetition maximum) following oral ingestion of ibuprofen (400 mg) or placebo control. Venous blood was collected during early recovery (0-3 h and 24 h postexercise), and serum lipid mediator composition was analyzed by LC-MS-based targeted lipidomics. Postexercise recovery was characterized by elevated levels of cyclooxygenase (COX)-1 and 2-derived prostanoids (TXB2, PGE2, PGD2, PGF2α, and PGI2), lipooxygenase (5-LOX, 12-LOX, and 15-LOX)-derived hydroxyeicosatetraenoic acids (HETEs), and leukotrienes (e.g., LTB4), and epoxygenase (CYP)-derived epoxy/dihydroxy eicosatrienoic acids (EpETrEs/DiHETrEs). Additionally, we detected elevated levels of bioactive lipid mediators with anti-inflammatory and proresolving properties, including arachidonic acid-derived lipoxins (LXA4 and LXB4), and the EPA (E-series) and DHA (D-series)-derived resolvins (RvD1 and RvE1), and protectins (PD1 isomer 10S, 17S-diHDoHE). Ibuprofen treatment blocked exercise-induced increases in COX-1 and COX-2-derived prostanoids but also resulted in off-target reductions in leukotriene biosynthesis, and a diminished proresolving lipid mediator response. CYP pathway product metabolism was also altered by ibuprofen treatment, as indicated by elevated postexercise serum 5,6-DiHETrE and 8,9-DiHETrE only in those receiving ibuprofen. These findings characterize the blood inflammatory lipid mediator response to unaccustomed resistance exercise in humans and show that acute proinflammatory signals are mechanistically linked to the induction of a biological active inflammatory resolution program, regulated by proresolving lipid mediators during postexercise recovery.
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Affiliation(s)
- James F Markworth
- School of Exercise and Nutrition Science, Deakin University, Melbourne, Victoria, Australia
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Abstract
Lipid mediators are produced from the oxidation of polyunsaturated fatty acids through enzymatic and free radical-mediated reactions. When subject to oxygenation via cyclooxygenases, lipoxygenases, and cytochrome P450 monooxygenases, polyunsaturated fatty acids give rise to an array of metabolites including eicosanoids, docosanoids, and octadecanoids. These potent bioactive lipids are involved in many biochemical and signaling pathways, with inflammation being of particular importance. Moreover, because they are produced by more than one pathway and substrate, and are present in a variety of biological milieus, their analysis is not always possible with conventional assays. Liquid chromatography coupled to electrospray mass spectrometry offers a versatile and sensitive approach for the analysis of bioactive lipids, allowing specific and accurate quantitation of multiple species present in the same sample. Here we explain the principles of this approach to mediator lipidomics and present detailed protocols for the assay of enzymatically produced oxygenated metabolites of polyunsaturated fatty acids that can be tailored to answer biological questions or facilitate assessment of nutritional and pharmacological interventions.
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43
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Markworth JF, Cameron-Smith D. Arachidonic acid supplementation enhances in vitro skeletal muscle cell growth via a COX-2-dependent pathway. Am J Physiol Cell Physiol 2013; 304:C56-67. [DOI: 10.1152/ajpcell.00038.2012] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Arachidonic acid (AA) is the metabolic precursor to a diverse range of downstream bioactive lipid mediators. A positive or negative influence of individual eicosanoid species [e.g., prostaglandins (PGs), leukotrienes, and hydroxyeicosatetraenoic acids] has been implicated in skeletal muscle cell growth and development. The collective role of AA-derived metabolites in physiological states of skeletal muscle growth/atrophy remains unclear. The present study aimed to determine the direct effect of free AA supplementation and subsequent eicosanoid biosynthesis on skeletal myocyte growth in vitro . C2C12 (mouse) skeletal myocytes induced to differentiate with supplemental AA exhibited dose-dependent increases in the size, myonuclear content, and protein accretion of developing myotubes, independent of changes in cell density or the rate/extent of myogenic differentiation. Nonselective (indomethacin) or cyclooxygenase 2 (COX-2)-selective (NS-398) nonsteroidal anti-inflammatory drugs blunted basal myogenesis, an effect that was amplified in the presence of supplemental free AA substrate. The stimulatory effects of AA persisted in preexisting myotubes via a COX-2-dependent (NS-389-sensitive) pathway, specifically implying dependency on downstream PG biosynthesis. AA-stimulated growth was associated with markedly increased secretion of PGF2α and PGE2; however, incubation of myocytes with PG-rich conditioned medium failed to mimic the effects of direct AA supplementation. In vitro AA supplementation stimulates PG release and skeletal muscle cell hypertrophy via a COX-2-dependent pathway.
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Affiliation(s)
- James F. Markworth
- School of Exercise and Nutrition Science, Deakin University, Melbourne, Australia; and
- Liggins Institute, University of Auckland, Auckland, New Zealand
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Chen L, Fan C, Zhang Y, Bakri M, Dong H, Morisseau C, Maddipati KR, Luo P, Wang CY, Hammock BD, Wang MH. Beneficial effects of inhibition of soluble epoxide hydrolase on glucose homeostasis and islet damage in a streptozotocin-induced diabetic mouse model. Prostaglandins Other Lipid Mediat 2012; 104-105:42-8. [PMID: 23247129 DOI: 10.1016/j.prostaglandins.2012.12.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Revised: 11/16/2012] [Accepted: 12/05/2012] [Indexed: 01/16/2023]
Abstract
Soluble epoxide hydrolase (sEH) is an enzyme involved in the metabolism of endogenous inflammatory and anti-apoptotic mediators. In the present study, we determined the effects of the inhibition of sEH on glucose homeostasis and islet damage in mice treated with streptozotocin (STZ), a model of chemical-induced diabetes. STZ increased daily water intake and decreased visceral (spleen and pancreas) weight in mice; sEH inhibition in STZ mice decreased water intake, but did not affect visceral weight. Hyperglycemia induced by STZ treatment in mice was attenuated by inhibiting sEH. The beneficial effects of sEH inhibition were accompanied, after 2 and 4 weeks of initial administration, by improving glucose tolerance. In contrast, sEH inhibition did not affect insulin tolerance. Using LC/MS analysis, neither STZ nor STZ plus sEH inhibition affected pancreatic and plasma ratios of epoxyeicosatrienoic acids (EETs) to dihydroxyeicosatrienoic acids (DHETs), an index of EETs levels. Western blot analysis showed that mouse cytochrome P450 (CYP) 2C enzymes are the major epoxygenases in islets. On day 5 after initial STZ treatment, STZ induced islet cell apoptosis, while sEH inhibition in STZ mice significantly reduced islet cell apoptosis. These studies provide pharmacological evidence that inhibiting sEH activity provides significant protection against islet β-cell damage and improves glucose homeostasis in STZ-induced diabetes.
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Affiliation(s)
- Lingdan Chen
- Department of Physiology, Georgia Health Sciences University, Augusta, GA 30912, USA
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45
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Abstract
Long chain omega-3 polyunsaturated fatty acids (LC n-3 PUFAs) are recommended for management of patients with wide-ranging chronic diseases, including coronary heart disease, rheumatoid arthritis, dementia, and depression. Increased consumption of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) is recommended by many health authorities to prevent (up to 0.5 g/day) or treat chronic disease (1.0 g/day for coronary heart disease; 1.2–4 g/day for elevated triglyceride levels). Recommendations for dietary intake of LC n-3 PUFAs are often provided for α-linolenic acid, and for the combination of EPA and DHA. However, many studies have also reported differential effects of EPA, DHA and their metabolites in the clinic and at the laboratory bench. The aim of this article is to review studies that have identified divergent responses to EPA and DHA, and to explore reasons for these differences. In particular, we review potential contributing factors such as differential membrane incorporation, modulation of gene expression, activation of signaling pathways and metabolite formation. We suggest that there may be future opportunity to refine recommendations for intake of individual LC n-3 PUFAs.
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Affiliation(s)
- Fraser D Russell
- Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore, Queensland 4556, Australia.
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46
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Lundström SL, Yang J, Källberg HJ, Thunberg S, Gafvelin G, Haeggström JZ, Grönneberg R, Grunewald J, van Hage M, Hammock BD, Eklund A, Wheelock ÅM, Wheelock CE. Allergic asthmatics show divergent lipid mediator profiles from healthy controls both at baseline and following birch pollen provocation. PLoS One 2012; 7:e33780. [PMID: 22438998 PMCID: PMC3305349 DOI: 10.1371/journal.pone.0033780] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Accepted: 02/17/2012] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Asthma is a respiratory tract disorder characterized by airway hyper-reactivity and chronic inflammation. Allergic asthma is associated with the production of allergen-specific IgE and expansion of allergen-specific T-cell populations. Progression of allergic inflammation is driven by T-helper type 2 (Th2) mediators and is associated with alterations in the levels of lipid mediators. OBJECTIVES Responses of the respiratory system to birch allergen provocation in allergic asthmatics were investigated. Eicosanoids and other oxylipins were quantified in the bronchoalveolar lumen to provide a measure of shifts in lipid mediators associated with allergen challenge in allergic asthmatics. METHODS Eighty-seven lipid mediators representing the cyclooxygenase (COX), lipoxygenase (LOX) and cytochrome P450 (CYP) metabolic pathways were screened via LC-MS/MS following off-line extraction of bronchoalveolar lavage fluid (BALF). Multivariate statistics using OPLS were employed to interrogate acquired oxylipin data in combination with immunological markers. RESULTS Thirty-two oxylipins were quantified, with baseline asthmatics possessing a different oxylipin profile relative to healthy individuals that became more distinct following allergen provocation. The most prominent differences included 15-LOX-derived ω-3 and ω-6 oxylipins. Shared-and-Unique-Structures (SUS)-plot modeling showed a correlation (R(2) = 0.7) between OPLS models for baseline asthmatics (R(2)Y[cum] = 0.87, Q(2)[cum] = 0.51) and allergen-provoked asthmatics (R(2)Y[cum] = 0.95, Q(2)[cum] = 0.73), with the majority of quantified lipid mediators and cytokines contributing equally to both groups. Unique structures for allergen provocation included leukotrienes (LTB(4) and 6-trans-LTB(4)), CYP-derivatives of linoleic acid (epoxides/diols), and IL-10. CONCLUSIONS Differences in asthmatic relative to healthy profiles suggest a role for 15-LOX products of both ω-6 and ω-3 origin in allergic inflammation. Prominent differences at baseline levels indicate that non-symptomatic asthmatics are subject to an underlying inflammatory condition not observed with other traditional mediators. Results suggest that oxylipin profiling may provide a sensitive means of characterizing low-level inflammation and that even individuals with mild disease display distinct phenotypic profiles, which may have clinical ramifications for disease.
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Affiliation(s)
- Susanna L. Lundström
- Division of Physiological Chemistry II, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Jun Yang
- Department of Entomology and Cancer Center, University of California Davis, Davis, California, United States of America
| | - Henrik J. Källberg
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Sarah Thunberg
- Clinical Immunology and Allergy Unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Guro Gafvelin
- Clinical Immunology and Allergy Unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Jesper Z. Haeggström
- Division of Physiological Chemistry II, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Reidar Grönneberg
- Division of Respiratory Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Johan Grunewald
- Division of Respiratory Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Marianne van Hage
- Clinical Immunology and Allergy Unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Bruce D. Hammock
- Department of Entomology and Cancer Center, University of California Davis, Davis, California, United States of America
| | - Anders Eklund
- Division of Respiratory Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Åsa M. Wheelock
- Division of Respiratory Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
- * E-mail: (CW); (AW)
| | - Craig E. Wheelock
- Division of Physiological Chemistry II, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
- * E-mail: (CW); (AW)
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47
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Sarveswaran S, Thamilselvan V, Brodie C, Ghosh J. Inhibition of 5-lipoxygenase triggers apoptosis in prostate cancer cells via down-regulation of protein kinase C-epsilon. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2011; 1813:2108-17. [PMID: 21824498 DOI: 10.1016/j.bbamcr.2011.07.015] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2010] [Revised: 07/22/2011] [Accepted: 07/25/2011] [Indexed: 12/31/2022]
Abstract
Previous studies have shown that human prostate cancer cells constitutively generate 5-lipoxygenase (5-LOX) metabolites from arachidonic acid, and inhibition of 5-LOX blocks production of 5-LOX metabolites and triggers apoptosis in prostate cancer cells. This apoptosis is prevented by exogenous metabolites of 5-LOX, suggesting an essential role of 5-LOX metabolites in the survival of prostate cancer cells. However, downstream signaling mechanisms which mediate the survival-promoting effects of 5-LOX metabolites in prostate cancer cells are still unknown. Recently, we reported that MK591, a specific inhibitor of 5-LOX activity, induces apoptosis in prostate cancer cells without inhibition of Akt, or ERK, two well-characterized regulators of pro-survival mechanisms, suggesting the existence of an Akt and ERK-independent survival mechanism in prostate cancer cells regulated by 5-LOX. Here, we report that 5-LOX inhibition-induced apoptosis in prostate cancer cells occurs via rapid inactivation of protein kinase C-epsilon (PKCε), and that exogenous 5-LOX metabolites prevent both 5-LOX inhibition-induced down-regulation of PKCε and induction of apoptosis. Interestingly, pre-treatment of prostate cancer cells with diazoxide (a chemical activator of PKCε), or KAE1-1 (a cell-permeable, octa-peptide specific activator of PKCε) prevents 5-LOX inhibition-induced apoptosis, which indicates that inhibition of 5-LOX triggers apoptosis in prostate cancer cells via down-regulation of PKCε. Altogether, these findings suggest that metabolism of arachidonic acid by 5-LOX activity promotes survival of prostate cancer cells via signaling through PKCε, a pro-survival serine/threonine kinase.
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