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Yu J, Hao J, Yorek MS, Han X, Avellino A, Jiang X, Liu S, Wang J, Li B. Determination of the FABP5 expression profile in skin lesions of an IMQ-induced psoriasis mouse model using flow cytometry. STAR Protoc 2024; 5:103018. [PMID: 38613778 PMCID: PMC11026830 DOI: 10.1016/j.xpro.2024.103018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/14/2024] [Accepted: 03/28/2024] [Indexed: 04/15/2024] Open
Abstract
The fatty acid-binding protein 5 (FABP5) is a key player in psoriasis development. Therefore, characterizing the expression profile of FABP5 in various cell types within both layers of psoriatic skin is important. Here, we present a protocol that describes steps for an imiquimod-induced psoriasis mouse model and preparation of epidermal and dermal single-cell suspensions. We then detail procedures to detect the FABP5 expression profile in skin keratinocytes and immune cells using intracellular flow cytometry staining. For complete details on the use and execution of this protocol, please refer to Hao et al.1.
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Affiliation(s)
- Jianyu Yu
- Department of Pathology, University of Iowa, Iowa City, IA, USA
| | - Jiaqing Hao
- Department of Pathology, University of Iowa, Iowa City, IA, USA
| | - Matthew S Yorek
- Department of Pathology, University of Iowa, Iowa City, IA, USA
| | - Xiaochun Han
- Department of Pathology, University of Iowa, Iowa City, IA, USA
| | | | - Xingshan Jiang
- Department of Pathology, University of Iowa, Iowa City, IA, USA
| | - Shanshan Liu
- Department of Pathology, University of Iowa, Iowa City, IA, USA
| | - Jinyu Wang
- Department of Pathology, University of Iowa, Iowa City, IA, USA
| | - Bing Li
- Department of Pathology, University of Iowa, Iowa City, IA, USA.
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2
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Hao J, Yu J, Yorek MS, Yu CL, Pope RM, Chimenti MS, Xiong Y, Klingelhutz A, Jabbari A, Li B. Keratinocyte FABP5-VCP complex mediates recruitment of neutrophils in psoriasis. Cell Rep 2023; 42:113449. [PMID: 37967009 PMCID: PMC10729729 DOI: 10.1016/j.celrep.2023.113449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 10/03/2023] [Accepted: 11/01/2023] [Indexed: 11/17/2023] Open
Abstract
One of the hallmarks of intractable psoriasis is neutrophil infiltration in skin lesions. However, detailed molecular mechanisms of neutrophil chemotaxis and activation remain unclear. Here, we demonstrate a significant upregulation of epidermal fatty acid binding protein (E-FABP, FABP5) in the skin of human psoriasis and psoriatic mouse models. Genetic deletion of FABP5 in mice by global knockout and keratinocyte conditional (Krt6a-Cre) knockout, but not myeloid cell conditional (LysM-Cre) knockout, attenuates psoriatic symptoms. Immunophenotypic analysis shows that FABP5 deficiency specifically reduces skin recruitment of Ly6G+ neutrophils. Mechanistically, activated keratinocytes produce chemokines and cytokines that trigger neutrophil chemotaxis and activation in an FABP5-dependent manner. Proteomic analysis further identifies that FABP5 interacts with valosin-containing protein (VCP), a key player in NF-κB signaling activation. Silencing of FABP5, VCP, or both inhibits NF-κB/neutrophil chemotaxis signaling. Collectively, these data demonstrate dysregulated FABP5 as a molecular mechanism promoting NF-κB signaling and neutrophil infiltration in psoriasis pathogenesis.
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Affiliation(s)
- Jiaqing Hao
- Department of Pathology, University of Iowa, Iowa City, IA, USA
| | - Jianyu Yu
- Department of Pathology, University of Iowa, Iowa City, IA, USA
| | - Matthew S Yorek
- Department of Pathology, University of Iowa, Iowa City, IA, USA
| | - Chi-Li Yu
- Proteomics Facility, University of Iowa, Iowa City, IA, USA
| | | | - Michael S Chimenti
- Iowa Institute of Human Genetics, University of Iowa, Iowa City, IA, USA
| | - Yiqin Xiong
- Department of Pathology, University of Iowa, Iowa City, IA, USA
| | - Aloysius Klingelhutz
- Department of Microbiology and Immunology, University of Iowa, Iowa City, IA, USA
| | - Ali Jabbari
- Department of Dermatology, University of Iowa, Iowa City, IA, USA; Iowa City VA Medical Center, Iowa City, IA, USA
| | - Bing Li
- Department of Pathology, University of Iowa, Iowa City, IA, USA.
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3
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Hao J, Jin R, Zeng J, Hua Y, Yorek MS, Liu L, Mandal A, Li J, Zheng H, Sun Y, Yi Y, Yin D, Zheng Q, Li X, Ng CK, Rouchka EC, Egilmez NK, Jabbari A, Li B. Consumption of fish oil high-fat diet induces murine hair loss via epidermal fatty acid binding protein in skin macrophages. Cell Rep 2022; 41:111804. [PMID: 36516778 PMCID: PMC10193786 DOI: 10.1016/j.celrep.2022.111804] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 10/06/2022] [Accepted: 11/18/2022] [Indexed: 12/15/2022] Open
Abstract
Fats are essential in healthy diets, but how dietary fats affect immune cell function and overall health is not well understood. Mimicking human high-fat diets (HFDs), which are rich in different fatty acid (FA) components, we fed mice various HFDs from different fat sources, including fish oil and cocoa butter. Mice consuming the fish oil HFD exhibit a hair-loss phenotype. Further studies show that omega-3 (n-3) FAs in fish oil promote atypical infiltration of CD207- (langerin-) myeloid macrophages in skin dermis, which induce hair loss through elevated TNF-α signaling. Mechanistically, epidermal fatty acid binding protein (E-FABP) is demonstrated to play an essential role in inducing TNF-α-mediated hair loss by activating the n-3 FA/ROS/IL-36 signaling pathway in dermal resident macrophages. Absence of E-FABP abrogates fish oil HFD-induced murine hair loss. Altogether, these findings support a role for E-FABP as a lipid sensor mediating n-3 FA-regulated macrophage function and skin health.
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Affiliation(s)
- Jiaqing Hao
- Department of Pathology, University of Iowa, 431 Newton Road, Iowa City, IA, USA; Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA
| | - Rong Jin
- Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA; NHC Key Laboratory of Medical Immunology, Department of Immunology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Jun Zeng
- Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA; School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Yuan Hua
- Department of Pathology, University of Iowa, 431 Newton Road, Iowa City, IA, USA; Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA
| | - Matthew S Yorek
- Department of Pathology, University of Iowa, 431 Newton Road, Iowa City, IA, USA
| | - Lianliang Liu
- Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA; College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Anita Mandal
- Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA
| | - Junling Li
- Department of Radiology, University of Louisville, Louisville, KY, USA
| | - Huaiyu Zheng
- Department of Radiology, University of Louisville, Louisville, KY, USA
| | - Yanwen Sun
- Department of Pathology, University of Iowa, 431 Newton Road, Iowa City, IA, USA; Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA
| | - Yanmei Yi
- Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA; Department of Histology and Embryology, Guangdong Medical University, Zhanjiang, China
| | - Di Yin
- Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA; School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Qi Zheng
- Bioinformatics and Biostatistics, Department of Public Health, University of Louisville, Louisville, KY, USA
| | - Xiaohong Li
- Kentucky Biomedical Research Infrastructure Network Bioinformatics Core, Department of Anatomical Sciences and Neurobiology, University of Louisville, Louisville, KY, USA
| | - Chin K Ng
- Department of Radiology, University of Louisville, Louisville, KY, USA
| | - Eric C Rouchka
- Kentucky Biomedical Research Infrastructure Network Bioinformatics Core, Department of Anatomical Sciences and Neurobiology, University of Louisville, Louisville, KY, USA; Department of Computer Science and Engineering, University of Louisville, Louisville, KY, USA
| | - Nejat K Egilmez
- Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA
| | - Ali Jabbari
- Department of Dermatology, University of Iowa, Iowa City, IA, USA; Iowa City VA Medical Center, Iowa City, IA, USA
| | - Bing Li
- Department of Pathology, University of Iowa, 431 Newton Road, Iowa City, IA, USA; Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA.
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4
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Poudel B, Yorek MS, Mazgaeen L, Brown SA, Kanneganti TD, Gurung P. Acute IL-4 Governs Pathogenic T Cell Responses during Leishmania major Infection. Immunohorizons 2020; 4:546-560. [PMID: 32948646 PMCID: PMC7640617 DOI: 10.4049/immunohorizons.2000076] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 09/01/2020] [Indexed: 11/19/2022] Open
Abstract
Leishmania spp. infection is a global health problem affecting more than 2 million people every year with 300 million at risk worldwide. It is well established that a dominant Th1 response (IFN-γ, a hallmark Th1 cytokine) provides resistance, whereas a dominant Th2 response (IL-4, a hallmark Th2 cytokine) confers susceptibility during infection. Given the important role of IL-4 during L. major infection, we used IL-4-neutralizing Abs to investigate the cellular and molecular events regulated by IL-4 signaling. As previously published, neutralization of IL-4 in L. major-infected BALB/c mice (a Leishmania susceptible strain) provided protection when compared with control L. major-infected BALB/c mice. Despite this protection, IFN-γ production by T cells was dramatically reduced. Temporal neutralization of IL-4 revealed that acute IL-4 produced within the first days of infection is critical for not only programming IL-4-producing Th2 CD4+ T cells, but for promoting IFN-γ produced by CD8+ T cells. Mechanistically, IL-4 signaling enhances anti-CD3-induced Tbet and IFN-γ expression in both CD4+ and CD8+ T cells. Given the pathogenic role of IFN-γ-producing CD8+ T cells, our data suggest that IL-4 promotes cutaneous leishmaniasis pathology by not only promoting Th2 immune responses but also pathogenic CD8+ T cell responses. Our studies open new research grounds to investigate the unsuspected role of IL-4 in regulating both Th1 and Th2 responses.
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Affiliation(s)
- Barun Poudel
- Iowa Inflammation Program, University of Iowa, Iowa City, IA 52242.,Department of Internal Medicine, University of Iowa, Iowa City, IA 52242
| | - Matthew S Yorek
- Iowa Inflammation Program, University of Iowa, Iowa City, IA 52242.,Department of Internal Medicine, University of Iowa, Iowa City, IA 52242
| | - Lalita Mazgaeen
- Iowa Inflammation Program, University of Iowa, Iowa City, IA 52242.,Department of Internal Medicine, University of Iowa, Iowa City, IA 52242.,Interdisciplinary Graduate Program in Human Toxicology, University of Iowa, Iowa City, IA 52242
| | - Scott A Brown
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN 38105
| | | | - Prajwal Gurung
- Iowa Inflammation Program, University of Iowa, Iowa City, IA 52242; .,Department of Internal Medicine, University of Iowa, Iowa City, IA 52242.,Interdisciplinary Graduate Program in Human Toxicology, University of Iowa, Iowa City, IA 52242.,Immunology Graduate Program, University of Iowa, Iowa City, IA 52242; and.,Center for Immunology and Immune Based Disease, University of Iowa, Iowa City, IA 52242
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5
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Yorek MS, Mazgaeen L, Gurung P. Leishmania major
degrades murine CXCL1. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.08788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Yorek MS, Davidson EP, Poolman P, Coppey LJ, Obrosov A, Holmes A, Kardon RH, Yorek MA. Corneal Sensitivity to Hyperosmolar Eye Drops: A Novel Behavioral Assay to Assess Diabetic Peripheral Neuropathy. Invest Ophthalmol Vis Sci 2017; 57:2412-9. [PMID: 27145474 PMCID: PMC5113984 DOI: 10.1167/iovs.16-19435] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Purpose Diagnosis of peripheral neuropathy (PN), which affects approximately 50% of the diabetic population, is subjective, with many patients seeking a diagnosis only after presenting with symptoms. Recently, in vivo confocal microscopy of subepithelial corneal nerve density has been promoted as a surrogate marker for early detection of PN, but imaging of corneal nerves requires sophisticated instrumentation, expertise in confocal imaging, cooperative patients, and automated analysis tools to derive corneal nerve density. As an alternative, we developed a simple screening method that is based on the sensitivity of corneal nerves to cause reflex eyelid squinting in response to hyperosmolar eye drops. Methods Eyes of control and type 2 diabetic rats were given an eye drop of a 290- to 900-mOsm solution, and the ocular response was video recorded. Other neuropathic end points including nerve conduction velocity and subepithelial cornea nerve density were determined. Results Motor and sensory nerve conduction velocity and total nerve fiber length of corneal nerves in the subepithelial layer were significantly decreased in diabetic rats. Applying the hyperosmotic solutions to the ocular surface caused an osmolarity-dependent increase in squinting of the treated eye in control rats. Squinting was almost totally blocked by preapplication of proparacaine or N-(4-tertiarybutylphenyl)-4-(3-chloropyridin-2-yl)tetrahydropyrazine-1(2H)-carbox-amide, a transient receptor potential melastatin-8 channel blocker. Squinting in response to the 900-mOsm solution was significantly reduced in diabetic rats. Conclusions Preclinical studies show that evaluation of corneal sensitivity may be an alternative method for the early detection of PN and has potential for translation to clinical studies.
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Affiliation(s)
- Matthew S Yorek
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, Iowa, United States 2Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa, United States
| | - Eric P Davidson
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa, United States
| | - Pieter Poolman
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, Iowa, United States 2Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa, United States 4Department of Ophthalmology and Visual Sciences, Universi
| | - Lawrence J Coppey
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa, United States
| | - Alexander Obrosov
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa, United States
| | - Amey Holmes
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, Iowa, United States
| | - Randy H Kardon
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, Iowa, United States 2Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa, United States 4Department of Ophthalmology and Visual Sciences, Universi
| | - Mark A Yorek
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, Iowa, United States 2Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa, United States 3Department of Internal Medicine, University of Iowa, Iowa
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7
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Yorek MS, Obrosov A, Shevalye H, Coppey LJ, Kardon RH, Yorek MA. Early vs. late intervention of high fat/low dose streptozotocin treated C57Bl/6J mice with enalapril, α-lipoic acid, menhaden oil or their combination: Effect on diabetic neuropathy related endpoints. Neuropharmacology 2016; 116:122-131. [PMID: 28025096 DOI: 10.1016/j.neuropharm.2016.12.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 11/28/2016] [Accepted: 12/21/2016] [Indexed: 01/06/2023]
Abstract
We have previously demonstrated that enalapril, α-lipoic acid and menhaden (fish) oil has potential as a treatment for diabetic peripheral neuropathy. In this study we sought to determine the efficacy of these treatments individually or in combination on multiple neuropathic endpoints in a high fat fed low dose streptozotocin treated mouse, a model of type 2 diabetes, following early or late intervention. Four or twelve weeks after the onset of hyperglycemia, diabetic mice were treated with enalapril, α-lipoic acid, menhaden oil or their combination for 12 weeks. Afterwards, endpoints including glucose tolerance, motor and sensory nerve conduction velocity, thermal nociception, and intraepidermal and cornea nerve fiber density was determined. Glucose clearance was impaired in diabetic mice and significantly improved only with combination treatment and early intervention. Diabetes caused steatosis, slowing of motor and sensory nerve conduction velocity, thermal hypoalgesia and reduction in intraepidermal and cornea nerve fiber density. Treating diabetic mice with enalapril, α-lipoic acid or menhaden oil partially protected diabetic mice from these deficits, whereas the combination of these three treatments was more efficacious following early or late intervention. These studies suggest that a combination therapy may be more effective for treating neural complications of type 2 diabetes.
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Affiliation(s)
- Matthew S Yorek
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, IA, 52246, USA; Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, IA, 52246, USA.
| | - Alexander Obrosov
- Department of Internal Medicine, University of Iowa, Iowa City, IA, 52242, USA.
| | - Hanna Shevalye
- Department of Internal Medicine, University of Iowa, Iowa City, IA, 52242, USA.
| | - Lawrence J Coppey
- Department of Internal Medicine, University of Iowa, Iowa City, IA, 52242, USA.
| | - Randy H Kardon
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, IA, 52246, USA; Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, IA, 52242, USA; Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, IA, 52246, USA.
| | - Mark A Yorek
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, IA, 52246, USA; Department of Internal Medicine, University of Iowa, Iowa City, IA, 52242, USA; Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, IA, 52246, USA; Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, IA, 52242, USA.
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8
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Yorek MS, Obrosov A, Lu B, Gerard C, Kardon RH, Yorek MA. Effect of Inhibition or Deletion of Neutral Endopeptidase on Neuropathic Endpoints in High Fat Fed/Low Dose Streptozotocin-Treated Mice. J Neuropathol Exp Neurol 2016; 75:1072-1080. [PMID: 27634964 PMCID: PMC7714044 DOI: 10.1093/jnen/nlw083] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Previously we demonstrated that a vasopeptidase inhibitor of angiotensin converting enzyme and neutral endopeptidase (NEP), a protease that degrades vaso- and neuro-active peptides, improves neural function in diabetic rodent models. The purpose of this study was to determine whether inhibition or deletion of NEP provides protection from neuropathy caused by diabetes with an emphasis on morphology of corneal nerves as a primary endpoint. Diabetes, modeling type 2, was induced in C57Bl/6J and NEP deficient mice through a combination of a high fat diet and streptozotocin. To inhibit NEP activity, diabetic C57Bl/6J mice were treated with candoxatril using a prevention or intervention protocol. Twelve weeks after the induction of diabetes in C57Bl/6J mice, the existence of diabetic neuropathy was determined through multiple endpoints including decrease in corneal nerves in the epithelium and sub-epithelium layer. Treatment of diabetic C57Bl/6J mice with candoxatril improved diabetic peripheral neuropathy and protected corneal nerve morphology with the prevention protocol being more efficacious than intervention. Unlike C57Bl/6J, mice deficient in NEP were protected from the development of neuropathologic alterations and loss of corneal nerves upon induction of diabetes. These studies suggest that NEP contributes to the development of diabetic neuropathy and may be a treatable target.
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Affiliation(s)
- Matthew S Yorek
- From the Department of Veterans Affairs Iowa City Health Care System, Iowa City, IA(MSY, RHK, MAY), Department of Internal Medicine, University of Iowa, Iowa City, IA(AO, MAY), Department of Pediatrics and Medicine, Harvard Medical School, Ina Sue Perlmutter Laboratory, Children's Hospital, Boston, MA(BL), Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, IA(RHK), Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, IA(RHK, MAY) and Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, IA(MAY)
| | - Alexander Obrosov
- From the Department of Veterans Affairs Iowa City Health Care System, Iowa City, IA(MSY, RHK, MAY), Department of Internal Medicine, University of Iowa, Iowa City, IA(AO, MAY), Department of Pediatrics and Medicine, Harvard Medical School, Ina Sue Perlmutter Laboratory, Children's Hospital, Boston, MA(BL), Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, IA(RHK), Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, IA(RHK, MAY) and Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, IA(MAY)
| | - Bao Lu
- From the Department of Veterans Affairs Iowa City Health Care System, Iowa City, IA(MSY, RHK, MAY), Department of Internal Medicine, University of Iowa, Iowa City, IA(AO, MAY), Department of Pediatrics and Medicine, Harvard Medical School, Ina Sue Perlmutter Laboratory, Children's Hospital, Boston, MA(BL), Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, IA(RHK), Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, IA(RHK, MAY) and Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, IA(MAY)
| | - Craig Gerard
- From the Department of Veterans Affairs Iowa City Health Care System, Iowa City, IA(MSY, RHK, MAY), Department of Internal Medicine, University of Iowa, Iowa City, IA(AO, MAY), Department of Pediatrics and Medicine, Harvard Medical School, Ina Sue Perlmutter Laboratory, Children's Hospital, Boston, MA(BL), Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, IA(RHK), Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, IA(RHK, MAY) and Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, IA(MAY)
| | - Randy H Kardon
- From the Department of Veterans Affairs Iowa City Health Care System, Iowa City, IA(MSY, RHK, MAY), Department of Internal Medicine, University of Iowa, Iowa City, IA(AO, MAY), Department of Pediatrics and Medicine, Harvard Medical School, Ina Sue Perlmutter Laboratory, Children's Hospital, Boston, MA(BL), Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, IA(RHK), Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, IA(RHK, MAY) and Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, IA(MAY)
| | - Mark A Yorek
- From the Department of Veterans Affairs Iowa City Health Care System, Iowa City, IA(MSY, RHK, MAY), Department of Internal Medicine, University of Iowa, Iowa City, IA(AO, MAY), Department of Pediatrics and Medicine, Harvard Medical School, Ina Sue Perlmutter Laboratory, Children's Hospital, Boston, MA(BL), Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, IA(RHK), Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, IA(RHK, MAY) and Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, IA(MAY)
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9
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Yorek MS, Obrosov A, Shevalye H, Holmes A, Harper MM, Kardon RH, Yorek MA. Effect of diet-induced obesity or type 1 or type 2 diabetes on corneal nerves and peripheral neuropathy in C57Bl/6J mice. J Peripher Nerv Syst 2016; 20:24-31. [PMID: 25858759 DOI: 10.1111/jns.12111] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 10/13/2014] [Accepted: 10/21/2014] [Indexed: 01/13/2023]
Abstract
We determined the impact diet-induced obesity (DIO) and types 1 and 2 diabetes have on peripheral neuropathy with emphasis on corneal nerve structural changes in C57Bl/6J mice. Endpoints examined included nerve conduction velocity, response to thermal and mechanical stimuli and innervation of the skin and cornea. DIO mice and to a greater extent type 2 diabetic mice were insulin resistant. DIO and both types 1 and 2 diabetic mice developed motor and sensory nerve conduction deficits. In the cornea of DIO and type 2 diabetic mice there was a decrease in sub-epithelial corneal nerves, innervation of the corneal epithelium, and corneal sensitivity. Type 1 diabetic mice did not present with any significant changes in corneal nerve structure until after 20 weeks of hyperglycemia. DIO and type 2 diabetic mice developed corneal structural damage more rapidly than type 1 diabetic mice although hemoglobin A1 C values were significantly higher in type 1 diabetic mice. This suggests that DIO with or without hyperglycemia contributes to development and progression of peripheral neuropathy and nerve structural damage in the cornea.
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Affiliation(s)
- Matthew S Yorek
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, IA, USA.,Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, IA, USA
| | - Alexander Obrosov
- Department of Internal Medicine, University of Iowa, Iowa City, IA, USA
| | - Hanna Shevalye
- Department of Internal Medicine, University of Iowa, Iowa City, IA, USA
| | - Amey Holmes
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, IA, USA
| | - Matthew M Harper
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, IA, USA.,Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, IA, USA.,Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, IA, USA
| | - Randy H Kardon
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, IA, USA.,Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, IA, USA.,Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, IA, USA
| | - Mark A Yorek
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, IA, USA.,Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, IA, USA.,Department of Internal Medicine, University of Iowa, Iowa City, IA, USA.,Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, IA, USA
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10
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Yorek MS, Obrosov A, Shevalye H, Lupachyk S, Harper MM, Kardon RH, Yorek MA. Effect of glycemic control on corneal nerves and peripheral neuropathy in streptozotocin-induced diabetic C57Bl/6J mice. J Peripher Nerv Syst 2015; 19:205-17. [PMID: 25403729 DOI: 10.1111/jns.12086] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 06/02/2014] [Accepted: 06/04/2014] [Indexed: 01/09/2023]
Abstract
We sought to determine the impact that duration of hyperglycemia and control has on corneal nerve fiber density in relation to standard diabetic neuropathy endpoints. Control and streptozotocin-diabetic C57Bl/6J mice were analyzed after 4, 8, 12, and 20 weeks. For the 20-week time point, five groups of mice were compared: control, untreated diabetic, and diabetic treated with insulin designated as having either poor glycemic control, good glycemic control, or poor glycemic control switched to good glycemic control. Hyperglycemia was regulated by use of insulin-releasing pellets. Loss of corneal nerves in the sub-epithelial nerve plexus or corneal epithelium progressed slowly in diabetic mice requiring 20 weeks to reach statistical significance. In comparison, slowing of motor and sensory nerve conduction velocity developed rapidly with significant difference compared with control mice observed after 4 and 8 weeks of hyperglycemia, respectively. In diabetic mice with good glycemic control, average blood glucose levels over the 20-week experimental period were lowered from 589 ± 2 to 251 ± 9 mg/dl. All diabetic neuropathy endpoints examined were improved in diabetic mice with good glycemic control compared with untreated diabetic mice. However, good control of blood glucose was not totally sufficient in preventing diabetic neuropathy.
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Affiliation(s)
- Matthew S Yorek
- Department of Veterans Affairs, Iowa City Health Care System, Iowa City, IA, USA; Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, IA, USA
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Shevalye H, Yorek MS, Coppey LJ, Holmes A, Harper MM, Kardon RH, Yorek MA. Effect of enriching the diet with menhaden oil or daily treatment with resolvin D1 on neuropathy in a mouse model of type 2 diabetes. J Neurophysiol 2015; 114:199-208. [PMID: 25925322 DOI: 10.1152/jn.00224.2015] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 04/24/2015] [Indexed: 12/14/2022] Open
Abstract
The purpose of this study was to determine the effect of supplementing the diet of a mouse model of type 2 diabetes with menhaden (fish) oil or daily treatment with resolvin D1 on diabetic neuropathy. The end points evaluated included motor and sensory nerve conduction velocity, thermal sensitivity, innervation of sensory nerves in the cornea and skin, and the retinal ganglion cell complex thickness. Menhaden oil is a natural source for n-3 polyunsaturated fatty acids, which have been shown to have beneficial effects in other diseases. Resolvin D1 is a metabolite of docosahexaenoic acid and is known to have anti-inflammatory and neuroprotective properties. To model type 2 diabetes, mice were fed a high-fat diet for 8 wk followed by a low dosage of streptozotocin. After 8 wk of hyperglycemia, mice in experimental groups were treated for 6 wk with menhaden oil in the diet or daily injections of 1 ng/g body wt resolvin D1. Our findings show that menhaden oil or resolvin D1 did not improve elevated blood glucose, HbA1C, or glucose utilization. Untreated diabetic mice were thermal hypoalgesic, had reduced motor and sensory nerve conduction velocities, had decreased innervation of the cornea and skin, and had thinner retinal ganglion cell complex. These end points were significantly improved with menhaden oil or resolvin D1 treatment. Exogenously, resolvin D1 stimulated neurite outgrowth from primary cultures of dorsal root ganglion neurons from normal mice. These studies suggest that n-3 polyunsaturated fatty acids derived from fish oil could be an effective treatment for diabetic neuropathy.
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Affiliation(s)
- Hanna Shevalye
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa
| | - Matthew S Yorek
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, Iowa; Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa; and
| | - Lawrence J Coppey
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa
| | - Amey Holmes
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, Iowa
| | - Matthew M Harper
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, Iowa; Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, Iowa; Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa; and
| | - Randy H Kardon
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, Iowa; Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, Iowa; Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa; and
| | - Mark A Yorek
- Department of Veterans Affairs Iowa City Health Care System, Iowa City, Iowa; Department of Internal Medicine, University of Iowa, Iowa City, Iowa; Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa; and Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, Iowa
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12
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Dutca LM, Stasheff SF, Hedberg-Buenz A, Rudd DS, Batra N, Blodi FR, Yorek MS, Yin T, Shankar M, Herlein JA, Naidoo J, Morlock L, Williams N, Kardon RH, Anderson MG, Pieper AA, Harper MM. Early detection of subclinical visual damage after blast-mediated TBI enables prevention of chronic visual deficit by treatment with P7C3-S243. Invest Ophthalmol Vis Sci 2014; 55:8330-41. [PMID: 25468886 DOI: 10.1167/iovs.14-15468] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
PURPOSE Traumatic brain injury (TBI) frequently leads to chronic visual dysfunction. The purpose of this study was to investigate the effect of TBI on retinal ganglion cells (RGCs), and to test whether treatment with the novel neuroprotective compound P7C3-S243 could prevent in vivo functional deficits in the visual system. METHODS Blast-mediated TBI was modeled using an enclosed over-pressure blast chamber. The RGC physiology was evaluated using a multielectrode array and pattern electroretinogram (PERG). Histological analysis of RGC dendritic field and cell number were evaluated at the end of the study. Visual outcome measures also were evaluated based on treatment of mice with P7C3-S243 or vehicle control. RESULTS We show that deficits in neutral position PERG after blast-mediated TBI occur in a temporally bimodal fashion, with temporary recovery 4 weeks after injury followed by chronically persistent dysfunction 12 weeks later. This later time point is associated with development of dendritic abnormalities and irreversible death of RGCs. We also demonstrate that ongoing pathologic processes during the temporary recovery latent period (including abnormalities of RGC physiology) lead to future dysfunction of the visual system. We report that modification of PERG to provocative postural tilt testing elicits changes in PERG measurements that correlate with a key in vitro measures of damage: the spontaneous and light-evoked activity of RGCs. Treatment with P7C3-S243 immediately after injury and throughout the temporary recovery latent period protects mice from developing chronic visual system dysfunction. CONCLUSIONS Provocative PERG testing serves as a noninvasive test in the living organism to identify early damage to the visual system, which may reflect corresponding damage in the brain that is not otherwise detectable by noninvasive means. This provides the basis for developing an earlier diagnostic test to identify patients at risk for developing chronic CNS and visual system damage after TBI at an earlier stage when treatments may be more effective in preventing these sequelae. In addition, treatment with the neuroprotective agent P7C3-S243 after TBI protects from visual system dysfunction after TBI.
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Affiliation(s)
- Laura M Dutca
- The Iowa City Department of Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa, United States Departments of Ophthalmology and Visual Sciences, The University of Iowa, Iowa City, Iowa, United States
| | - Steven F Stasheff
- Departments of Ophthalmology and Visual Sciences, The University of Iowa, Iowa City, Iowa, United States
| | - Adam Hedberg-Buenz
- The Iowa City Department of Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa, United States Department of Molecular Physiology and Biophysics, The University of Iowa, Iowa City, Iowa, United States
| | - Danielle S Rudd
- The Iowa City Department of Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa, United States
| | - Nikhil Batra
- The Iowa City Department of Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa, United States
| | - Frederick R Blodi
- Department of Pediatrics, The University of Iowa, Iowa City, Iowa, United States
| | - Matthew S Yorek
- The Iowa City Department of Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa, United States
| | - Terry Yin
- Department of Psychiatry, The University of Iowa, Iowa City, Iowa, United States
| | - Malini Shankar
- Department of Pediatrics, The University of Iowa, Iowa City, Iowa, United States
| | - Judith A Herlein
- The Iowa City Department of Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa, United States
| | - Jacinth Naidoo
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, Texas, United States
| | - Lorraine Morlock
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, Texas, United States
| | - Noelle Williams
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, Texas, United States
| | - Randy H Kardon
- The Iowa City Department of Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa, United States Departments of Ophthalmology and Visual Sciences, The University of Iowa, Iowa City, Iowa, United States
| | - Michael G Anderson
- The Iowa City Department of Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa, United States Departments of Ophthalmology and Visual Sciences, The University of Iowa, Iowa City, Iowa, United States Department of Molecular Physiology and Biophysics, The University of Iowa, Iowa City, Iowa, United States
| | - Andrew A Pieper
- The Iowa City Department of Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa, United States Department of Neurology, The University of Iowa, Iowa City, Iowa, United States Department of Psychiatry, The University of Iowa, Iowa City, Iowa, United States
| | - Matthew M Harper
- The Iowa City Department of Veterans Affairs Center for the Prevention and Treatment of Visual Loss, Iowa City, Iowa, United States Departments of Ophthalmology and Visual Sciences, The University of Iowa, Iowa City, Iowa, United States
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13
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Jang JH, Clark DJ, Li X, Yorek MS, Usachev YM, Brennan TJ. Nociceptive sensitization by complement C5a and C3a in mouse. Pain 2009; 148:343-352. [PMID: 20031321 DOI: 10.1016/j.pain.2009.11.021] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2009] [Revised: 11/25/2009] [Accepted: 11/25/2009] [Indexed: 11/29/2022]
Abstract
Activation of the complement system by injury increases inflammation by producing complement fragments C5a and C3a which are able to recruit and activate immune cells. Complement activation may contribute to pain after inflammation and injury. In this study, we examined whether C5a and C3a elicit nociception when injected into mouse hind paws in vivo, and whether C5a and C3a activate and/or sensitize mechanosensitive nociceptors when applied on peripheral terminals in vitro. We also examined the dorsal root ganglia (DRG) for C5a receptor (C5aR) mRNA and effects of C5a and C3a on intracellular Ca(2+) concentration ([Ca(2+)](i)) using Ca(2+) imaging. Heat hyperalgesia was elicited by intraplantar injection of C5a, and mechanical hyperalgesia by C5a and C3a. After exposure to either C5a or C3a, C-nociceptors were sensitized to heat as evidenced by an increased proportion of heat responsive fibers, lowered response threshold to heat and increased action potentials during and after heat stimulation. A-nociceptors were activated by complement. However, no change was observed in mechanical responses of A- and C-nociceptors after C5a and C3a application. The presence of C5aR mRNA was detected in DRG. C5a and C3a application elevated [Ca(2+)](i) and facilitated capsaicin-induced [Ca(2+)](i) responses in DRG neurons. The results suggest a potential role for complement fragments C5a and C3a in nociception by activating and sensitizing cutaneous nociceptors.
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Affiliation(s)
- Jun Ho Jang
- Department of Anesthesia, University of Iowa Hospitals and Clinics, Iowa City, IA, USA Department of Anesthesia, Veterans Affairs Palo Alto Healthcare System and Stanford University School of Medicine, Stanford, CA, USA Department of Pharmacology, University of Iowa, Iowa City, IA, USA Graduate Program of Neuroscience, University of Iowa, Iowa City, IA, USA
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Cincotta SL, Yorek MS, Moschak TM, Lewis SR, Rodefer JS. Selective nicotinic acetylcholine receptor agonists: potential therapies for neuropsychiatric disorders with cognitive dysfunction. Curr Opin Investig Drugs 2008; 9:47-56. [PMID: 18183531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Cognitive impairment is one of the most functionally debilitating aspects of neuropsychiatric and neurodegenerative disorders, such as schizophrenia and Alzheimer's disease, despite treatment with available pharmacotherapies. There is emerging evidence that nicotine improves cognitive function in humans and nonhuman species and this has sparked interest in the development of novel nicotinic treatments for cognitive dysfunction. The examination of selective alpha7 and alpha4beta2 nicotinic acetylcholine receptor (nAChR) agonists suggests that both receptor subtypes mediate improvement in attention, learning and working memory. When compared with available pharmacotherapies, specific nAChR agonists may represent unique targets for the treatment of neuropsychiatric and neurodegenerative disorders that feature cognitive impairment as a key symptom.
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