1
|
Romana-Souza B, Chen L, DiPietro LA. Repeated stress-induced crosstalk between the sympathetic nervous system and mast cells contributes to delayed cutaneous wound healing in mice. J Neuroimmunol 2023; 379:578104. [PMID: 37196594 DOI: 10.1016/j.jneuroim.2023.578104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 04/03/2023] [Accepted: 05/09/2023] [Indexed: 05/19/2023]
Abstract
The study identifies a link between the neuroimmune interaction and the impairment of wound healing induced by repeated stress. Stress increased mast cell mobilization and degranulation, levels of IL-10, and sympathetic reinnervation in mouse wounds. In contrast to mast cells, macrophage infiltration into wounds was significantly delayed in stressed mice. Chemical sympathectomy and the blockade of mast cell degranulation reversed the effect of stress on skin wound healing in vivo. In vitro, high epinephrine levels stimulated mast cell degranulation and IL-10 release. In conclusion, catecholamines released by the sympathetic nervous system stimulate mast cells to secrete anti-inflammatory cytokines that impair inflammatory cell mobilization, leading to a delay in the resolution of wound healing under stress conditions.
Collapse
Affiliation(s)
- Bruna Romana-Souza
- Department of Histology and Embryology, Rio de Janeiro State University, Rio de Janeiro, Brazil.
| | - Lin Chen
- Center for Wound Healing and Tissue Regeneration, University of Illinois Chicago, Chicago, IL, USA
| | - Luisa A DiPietro
- Center for Wound Healing and Tissue Regeneration, University of Illinois Chicago, Chicago, IL, USA
| |
Collapse
|
2
|
Kowalski J, Nowak M, Górski B, Górska R. What Has Immunology Brought to Periodontal Disease in Recent Years? Arch Immunol Ther Exp (Warsz) 2022; 70:26. [PMID: 36245042 PMCID: PMC9573852 DOI: 10.1007/s00005-022-00662-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 08/08/2022] [Indexed: 11/29/2022]
Abstract
Recent decades have shed a new light on the pathomechanism of periodontal inflammation. While classic periodontology concentrates on biofilm control, oral hygiene improvement, professional tooth cleaning and surgical correction of damaged periodontal tissues, new aspects of the destruction mechanisms are being raised. Among them, the greatest attention is paid to the influence of host response on the clinical manifestations of the disease. Numerous studies have proved that the shift from gingivitis to periodontitis is not a simple progress of the disease, but an event occurring only in susceptible individuals. Susceptibility may result from appearance of local factors facilitating biofilm accumulation and/or maturation, or from systemic features, among which over-reaction and prolonged agitation of non-specific component of inflammatory response is crucial. The present paper summarizes the association between periodontology and immunology and updates the knowledge accrued mostly in the recent years. After a brief explanation of advances in understanding of the disease aetiology, the most studied and potentially viable immunological markers of periodontal disease are presented. Possible new therapeutic strategies, exploiting knowledge about the nature of host response—immunomodulation and reduction of chronic oxidative stress—are also presented.
Collapse
Affiliation(s)
- Jan Kowalski
- Department of Periodontology and Oral Diseases, Medical University of Warsaw, Warsaw, Poland.
| | - Maciej Nowak
- Department of Periodontology and Oral Diseases, Medical University of Warsaw, Warsaw, Poland
| | - Bartłomiej Górski
- Department of Periodontology and Oral Diseases, Medical University of Warsaw, Warsaw, Poland
| | - Renata Górska
- Department of Periodontology and Oral Diseases, Medical University of Warsaw, Warsaw, Poland
| |
Collapse
|
3
|
Srivastava P, Sondak T, Sivashanmugam K, Kim KS. A Review of Immunomodulatory Reprogramming by Probiotics in Combating Chronic and Acute Diabetic Foot Ulcers (DFUs). Pharmaceutics 2022; 14:2436. [PMID: 36365254 PMCID: PMC9699442 DOI: 10.3390/pharmaceutics14112436] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/02/2022] [Accepted: 11/08/2022] [Indexed: 08/29/2023] Open
Abstract
Diabetic foot ulcers (DFUs) are characterized by a lack of angiogenesis and distal limb diabetic neuropathy. This makes it possible for opportunistic pathogens to protect the biofilm-encased micro-communities, causing a delay in wound healing. The acute and chronic phases of DFU-associated infections are distinguished by the differential expression of innate proinflammatory cytokines and tumor necrosis factors (TNF-α and -β). Efforts are being made to reduce the microbial bioburden of wounds by using therapies such as debridement, hyperbaric oxygen therapy, shock wave therapy, and empirical antibiotic treatment. However, the constant evolution of pathogens limits the effectiveness of these therapies. In the wound-healing process, continuous homeostasis and remodeling processes by commensal microbes undoubtedly provide a protective barrier against diverse pathogens. Among commensal microbes, probiotics are beneficial microbes that should be administered orally or topically to regulate gut-skin interaction and to activate inflammation and proinflammatory cytokine production. The goal of this review is to bridge the gap between the role of probiotics in managing the innate immune response and the function of proinflammatory mediators in diabetic wound healing. We also highlight probiotic encapsulation or nanoformulations with prebiotics and extracellular vesicles (EVs) as innovative ways to tackle target DFUs.
Collapse
Affiliation(s)
- Prakhar Srivastava
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Korea
| | - Tesalonika Sondak
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Korea
| | - Karthikeyan Sivashanmugam
- School of Biosciences and Technology, High Throughput Screening Lab, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Kwang-sun Kim
- Department of Chemistry and Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Korea
| |
Collapse
|
4
|
Daskalakis NP, Xu C, Bader HN, Chatzinakos C, Weber P, Makotkine I, Lehrner A, Bierer LM, Binder EB, Yehuda R. Intergenerational trauma is associated with expression alterations in glucocorticoid- and immune-related genes. Neuropsychopharmacology 2021; 46:763-773. [PMID: 33173192 PMCID: PMC8027026 DOI: 10.1038/s41386-020-00900-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/19/2020] [Accepted: 10/22/2020] [Indexed: 01/02/2023]
Abstract
Offspring of trauma survivors are more likely to develop PTSD, mood, and anxiety disorders and demonstrate endocrine and molecular alterations compared to controls. This study reports the association between parental Holocaust exposure and genome-wide gene expression in peripheral blood mononuclear cells (PBMC) from 77 Holocaust survivor offspring and 15 comparison subjects. Forty-two differentially expressed genes (DEGs) were identified in association with parental Holocaust exposure (FDR-adjusted p < 0.05); most of these genes were downregulated and co-expressed in a gene network related to immune cell functions. When both parental Holocaust exposure and maternal age at Holocaust exposure shared DEGs, fold changes were in the opposite direction. Similarly, fold changes of shared DEGs associated with maternal PTSD and paternal PTSD were in opposite directions, while fold changes of shared DEGs associated with both maternal and paternal Holocaust exposure or associated with both maternal and paternal age at Holocaust exposure were in the same direction. Moreover, the DEGs associated with parental Holocaust exposure were enriched for glucocorticoid-regulated genes and immune pathways with some of these genes mediating the effects of parental Holocaust exposure on C-reactive protein. The top gene across all analyses was MMP8, encoding the matrix metalloproteinase 8, which is a regulator of innate immunity. To conclude, this study identified a set of glucocorticoid and immune-related genes in association with parental Holocaust exposure with differential effects based on parental exposure-related factors.
Collapse
Affiliation(s)
- Nikolaos P. Daskalakis
- grid.240206.20000 0000 8795 072XDepartment of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, MA USA ,grid.66859.34Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, USA ,grid.59734.3c0000 0001 0670 2351Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY USA
| | - Changxin Xu
- grid.59734.3c0000 0001 0670 2351Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY USA ,grid.274295.f0000 0004 0420 1184Mental Health Care Center, James J. Peters Veterans Affairs Medical Center, Bronx, NY USA
| | - Heather N. Bader
- grid.59734.3c0000 0001 0670 2351Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY USA ,grid.274295.f0000 0004 0420 1184Mental Health Care Center, James J. Peters Veterans Affairs Medical Center, Bronx, NY USA
| | - Chris Chatzinakos
- grid.240206.20000 0000 8795 072XDepartment of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, MA USA ,grid.66859.34Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, USA
| | - Peter Weber
- grid.419548.50000 0000 9497 5095Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany
| | - Iouri Makotkine
- grid.59734.3c0000 0001 0670 2351Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY USA ,grid.274295.f0000 0004 0420 1184Mental Health Care Center, James J. Peters Veterans Affairs Medical Center, Bronx, NY USA
| | - Amy Lehrner
- grid.59734.3c0000 0001 0670 2351Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY USA ,grid.274295.f0000 0004 0420 1184Mental Health Care Center, James J. Peters Veterans Affairs Medical Center, Bronx, NY USA
| | - Linda M. Bierer
- grid.59734.3c0000 0001 0670 2351Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY USA ,grid.274295.f0000 0004 0420 1184Mental Health Care Center, James J. Peters Veterans Affairs Medical Center, Bronx, NY USA
| | - Elisabeth B. Binder
- grid.419548.50000 0000 9497 5095Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany ,grid.189967.80000 0001 0941 6502Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA USA
| | - Rachel Yehuda
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA. .,Mental Health Care Center, James J. Peters Veterans Affairs Medical Center, Bronx, NY, USA.
| |
Collapse
|
5
|
From Inflammation to Current and Alternative Therapies Involved in Wound Healing. Int J Inflam 2017; 2017:3406215. [PMID: 28811953 PMCID: PMC5547704 DOI: 10.1155/2017/3406215] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 06/01/2017] [Accepted: 06/06/2017] [Indexed: 02/08/2023] Open
Abstract
Wound healing is a complex event that develops in three overlapping phases: inflammatory, proliferative, and remodeling. These phases are distinct in function and histological characteristics. However, they depend on the interaction of cytokines, growth factors, chemokines, and chemical mediators from cells to perform regulatory events. In this article, we will review the pathway in the skin healing cascade, relating the major chemical inflammatory mediators, cellular and molecular, as well as demonstrating the local and systemic factors that interfere in healing and disorders associated with tissue repair deficiency. Finally, we will discuss the current therapeutic interventions in the wounds treatment, and the alternative therapies used as promising results in the development of new products with healing potential.
Collapse
|
6
|
Lloris-Carsí JM, Barrios C, Prieto-Moure B, Lloris-Cejalvo JM, Cejalvo-Lapeña D. The effect of adhesives on inflammatory immune-markers during renal injury healing. J Biomed Mater Res B Appl Biomater 2017. [PMID: 28650114 DOI: 10.1002/jbm.b.33949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Renal injury is common in abdominal trauma. Adhesives and sealants can be used to repair and preserve damaged organs. We describe the effect of three biomaterial treatments (TachoSil, GelitaSpon, and Adhflex) on injured renal tissue. Renal traumatic injuries were experimentally induced in male Wistar rats (n = 90) using a punch. Animals were divided into five groups: (1) sham noninjured (n = 3) and punch injury groups; (2) nontreated (n = 6); (3) TachoSil (n = 27); (4) GelitaSpon (n = 27); and (5) Adhflex (n = 27). Wound healing was evaluated 2, 6, and 18 days postinjury by inflammatory cytokines response, histopathological evolution of lesions, inflammatory reaction markers (CD68), and vascular neoformation (CD31). The TachoSil group showed the least inflammatory reaction among the three treated groups, which showed similarly low inflammatory reaction 18 days postinjury. Ciliary neurotrophic factor, soluble intercellular adhesion molecule-1, L-selectin, thymus chemokine, and TIMP metallopeptidase inhibitor 1 expression peaked between 2 and 6 days postinjury. TachoSil promoted the highest cytokine expression. The Adhflex group had the highest CD31 inflammatory immune-marker levels at 2 and 6 days postinjury, but there was a similar decrease in CD31 levels in all three groups at 18 days postinjury. The results show that all three sealant treatments induced a normal healing process with the typical pattern of proinflammatory cytokine and immune-marker expression. Each tested sealant substance could be suitable treatment for renal lacerations. The findings of this study indicate that Adhflex® elastic cyanoacrylate does not induce an adverse inflammatory reaction, and therefore, could be considered as one of the first-line treatments for renal injuries. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1444-1455, 2018.
Collapse
Affiliation(s)
| | - Carlos Barrios
- Intitute for Research on Musculoskeletal Disorders, School of Medicine, Universidad Católica de Valencia San Vicente Mártir, València, Spain
| | - Beatriz Prieto-Moure
- Experimental Surgery, School of Medicine, Valencia Catholic University ″San Vicente Mártir, València, Spain
| | - José Miguel Lloris-Cejalvo
- Experimental Surgery, School of Medicine, Valencia Catholic University ″San Vicente Mártir, València, Spain
| | - Dolores Cejalvo-Lapeña
- Experimental Surgery, School of Medicine, Valencia Catholic University ″San Vicente Mártir, València, Spain
| |
Collapse
|
7
|
Urbach C, Gordon NC, Strickland I, Lowne D, Joberty-Candotti C, May R, Herath A, Hijnen D, Thijs JL, Bruijnzeel-Koomen CA, Minter RR, Hollfelder F, Jermutus L. Combinatorial Screening Identifies Novel Promiscuous Matrix Metalloproteinase Activities that Lead to Inhibition of the Therapeutic Target IL-13. ACTA ACUST UNITED AC 2015; 22:1442-1452. [PMID: 26548614 DOI: 10.1016/j.chembiol.2015.09.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 09/10/2015] [Accepted: 09/28/2015] [Indexed: 12/20/2022]
Abstract
The practical realization of disease modulation by catalytic degradation of a therapeutic target protein suffers from the difficulty to identify candidate proteases, or to engineer their specificity. We identified 23 measurable, specific, and new protease activities using combinatorial screening of 27 human proteases against 24 therapeutic protein targets. We investigate the cleavage of monocyte chemoattractant protein 1, interleukin-6 (IL-6), and IL-13 by matrix metalloproteinases (MMPs) and serine proteases, and demonstrate that cleavage of IL-13 leads to potent inhibition of its biological activity in vitro. MMP-8 degraded human IL-13 most efficiently in vitro and ex vivo in human IL-13 transgenic mouse bronchoalveolar lavage. Hence, MMP-8 is a therapeutic protease lead against IL-13 for inflammatory conditions whereby reported genetic and genomics data suggest an involvement of MMP-8. This work describes the first exploitation of human enzyme promiscuity for therapeutic applications, and reveals both starting points for protease-based therapies and potential new regulatory networks in inflammatory disease.
Collapse
Affiliation(s)
- Carole Urbach
- Department of Antibody Discovery and Protein Engineering, MedImmune, Granta Park, Cambridge CB21 6GH, UK.
| | - Nathaniel C Gordon
- Department of Antibody Discovery and Protein Engineering, MedImmune, Granta Park, Cambridge CB21 6GH, UK; Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, UK
| | - Ian Strickland
- Department of Respiratory, Inflammation and Autoimmunity, MedImmune, Granta Park, Cambridge CB21 6GH, UK
| | - David Lowne
- Department of Antibody Discovery and Protein Engineering, MedImmune, Granta Park, Cambridge CB21 6GH, UK
| | | | - Richard May
- Department of Respiratory, Inflammation and Autoimmunity, MedImmune, Granta Park, Cambridge CB21 6GH, UK
| | - Athula Herath
- Non Clinical Biostatistics, MedImmune, Granta Park, Cambridge CB21 6GH, UK
| | - DirkJan Hijnen
- Department of Dermatology, University Medical Center, 3508 GA Utrecht, the Netherlands
| | - Judith L Thijs
- Department of Dermatology, University Medical Center, 3508 GA Utrecht, the Netherlands
| | | | - Ralph R Minter
- Department of Antibody Discovery and Protein Engineering, MedImmune, Granta Park, Cambridge CB21 6GH, UK
| | - Florian Hollfelder
- Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, UK
| | - Lutz Jermutus
- Department of Antibody Discovery and Protein Engineering, MedImmune, Granta Park, Cambridge CB21 6GH, UK
| |
Collapse
|
8
|
Grasso G, Bonnet S. Metal complexes and metalloproteases: targeting conformational diseases. Metallomics 2015; 6:1346-57. [PMID: 24870829 DOI: 10.1039/c4mt00076e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In recent years many metalloproteases (MPs) have been shown to play important roles in the development of various pathological conditions. Although most of the literature is focused on matrix MPs (MMPs), many other MPs have been demonstrated to be involved in the degradation of peptides or proteins whose accumulation and dyshomeostasis are considered as being responsible for the development of conformational diseases, i.e., diseases where non-native protein conformations lead to protein aggregation. It seems clear that, at least in principle, it must be possible to control the levels of many aggregation-prone proteins not only by reducing their production, but also by enhancing their catabolism. Metal complexes that can perform this function were designed and tested according to at least two different strategies: (i) intervening on the endogenous MPs by directly or indirectly modulating their activity; (ii) acting as artificial MPs, replacing or synergistically functioning with endogenous MPs. These two different bioinorganic approaches are widely represented in the current literature and the aim of this review is to rationally organize and discuss both of them so as to give a critical insight into these approaches and highlighting their limitations and future perspectives.
Collapse
Affiliation(s)
- Giuseppe Grasso
- Chemistry Department, Dipartimento di Scienze Chimiche, Università di Catania, Viale Andrea Doria 6, 95125, Catania, Italy.
| | | |
Collapse
|
9
|
Grasso G. Monitoring the biomolecular interactions and the activity of Zn-containing enzymes involved in conformational diseases: experimental methods for therapeutic purposes. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2014; 97:115-42. [PMID: 25458357 DOI: 10.1016/bs.apcsb.2014.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Zinc metalloproteases (ZnMPs) participate in diverse biological reactions, encompassing the synthesis and degradation of all the major metabolites in living organisms. In particular, ZnMPs have been recognized to play a very important role in controlling the concentration level of several peptides and/or proteins whose homeostasis has to be finely regulated for the correct physiology of cells. Dyshomeostasis of aggregation-prone proteins causes pathological conditions and the development of several different diseases. For this reason, in recent years, many analytical approaches have been applied for studying the interaction between ZnMPs and their substrates/inhibitors and how environmental factors can affect enzyme activities. In this scenario, nuclear magnetic resonance, X-ray diffraction, mass spectrometric (MS), and optical methods occupy a very important role in elucidating different aspects of the ZnMPs-substrates/inhibitors interaction, ranging from identification of cleavage sites to quantitation of kinetic parameters and inhibition constants. Here, an overview of all the main achievements in the application of different experimental approaches with special attention to MS methods to the investigation of ZnMPs-substrates/inhibitors interaction is given. A general MS experimental protocol which has been proved to be useful to study such interactions is also described.
Collapse
Affiliation(s)
- Giuseppe Grasso
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Catania, Italy.
| |
Collapse
|
10
|
Romana-Souza B, Assis de Brito TL, Pereira GR, Monte-Alto-Costa A. Gonadal hormones differently modulate cutaneous wound healing of chronically stressed mice. Brain Behav Immun 2014; 36:101-10. [PMID: 24157428 DOI: 10.1016/j.bbi.2013.10.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 09/26/2013] [Accepted: 10/15/2013] [Indexed: 12/17/2022] Open
Abstract
Gonadal hormones influence physiological responses to stress and cutaneous wound healing. The aim of this study was to investigate the role of gonadal hormones on cutaneous wound healing in chronically stressed mice. Male and female mice were gonadectomized, and after 25 days, they were spun daily at 115 rpm for 15 min every hour until euthanasia. Twenty-eight days after the gonadectomy, an excisional lesion was created. The animals were killed 7 or 14 days after wounding, and the lesions were collected. Myofibroblast density, macrophage number, catecholamine level, collagen deposition, and blood vessel number were evaluated. In the intact and gonadectomized groups, stress increased the plasma catecholamine levels in both genders. In intact groups, stress impaired wound contraction and re-epithelialization and increased the macrophage number in males but not in females. In addition, stress compromised myofibroblastic differentiation and blood vessel formation and decreased collagen deposition in males but not in females. In contrast to intact mice, wound healing in ovariectomized female mice was affected by stress, while wound healing in castrated male mice was not. In conclusion, gender differences contribute to the cutaneous wound healing of chronically stressed mice. In addition, androgens contribute to the stress-induced impairment of the healing of cutaneous wounds but estrogens inhibit it.
Collapse
Affiliation(s)
- Bruna Romana-Souza
- Department of Animal Biology, Rural Federal University of Rio de Janeiro, Seropédica, Brazil; Department of Histology and Embryology, State University of Rio de Janeiro, Rio de Janeiro, Brazil.
| | | | - Gabriela R Pereira
- Department of Animal Biology, Rural Federal University of Rio de Janeiro, Seropédica, Brazil
| | - Andréa Monte-Alto-Costa
- Department of Histology and Embryology, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| |
Collapse
|
11
|
Microbial symbionts accelerate wound healing via the neuropeptide hormone oxytocin. PLoS One 2013; 8:e78898. [PMID: 24205344 PMCID: PMC3813596 DOI: 10.1371/journal.pone.0078898] [Citation(s) in RCA: 198] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 09/17/2013] [Indexed: 02/07/2023] Open
Abstract
Wound healing capability is inextricably linked with diverse aspects of physical fitness ranging from recovery after minor injuries and surgery to diabetes and some types of cancer. Impact of the microbiome upon the mammalian wound healing process is poorly understood. We discover that supplementing the gut microbiome with lactic acid microbes in drinking water accelerates the wound-healing process to occur in half the time required for matched control animals. Further, we find that Lactobacillus reuteri enhances wound-healing properties through up-regulation of the neuropeptide hormone oxytocin, a factor integral in social bonding and reproduction, by a vagus nerve-mediated pathway. Bacteria-triggered oxytocin serves to activate host CD4+Foxp3+CD25+ immune T regulatory cells conveying transplantable wound healing capacity to naive Rag2-deficient animals. This study determined oxytocin to be a novel component of a multi-directional gut microbe-brain-immune axis, with wound-healing capability as a previously unrecognized output of this axis. We also provide experimental evidence to support long-standing medical traditions associating diet, social practices, and the immune system with efficient recovery after injury, sustained good health, and longevity.
Collapse
|
12
|
|
13
|
Current World Literature. Curr Opin Support Palliat Care 2013; 7:116-28. [DOI: 10.1097/spc.0b013e32835e749d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|