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Wilcox NC, Taheri G, Halievski K, Talbot S, Silva JR, Ghasemlou N. Interactions between skin-resident dendritic and Langerhans cells and pain-sensing neurons. J Allergy Clin Immunol 2024; 154:11-19. [PMID: 38492673 DOI: 10.1016/j.jaci.2024.03.006] [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: 12/22/2023] [Revised: 02/13/2024] [Accepted: 03/05/2024] [Indexed: 03/18/2024]
Abstract
Various immune cells in the skin contribute to its function as a first line of defense against infection and disease, and the skin's dense innervation by pain-sensing sensory neurons protects the host against injury or damage signals. Dendritic cells (DCs) are a heterogeneous population of cells that link the innate immune response to the adaptive response by capturing, processing, and presenting antigens to promote T-cell differentiation and activation. DCs are abundant across peripheral tissues, including the skin, where they are found in the dermis and epidermis. Langerhans cells (LCs) are a DC subset located only in the epidermis; both populations of cells can migrate to lymph nodes to contribute to broad immune responses. Dermal DCs and LCs are found in close apposition with sensory nerve fibers in the skin and express neurotransmitter receptors, allowing them to communicate directly with the peripheral nervous system. Thus, neuroimmune signaling between DCs and/or LCs and sensory neurons can modulate physiologic and pathophysiologic pathways, including immune cell regulation, host defense, allergic response, homeostasis, and wound repair. Here, we summarize the latest discoveries on DC- and LC-neuron interaction with neurons while providing an overview of gaps and areas not previously explored. Understanding the interactions between these 2 defence systems may provide key insight into developing therapeutic targets for treating diseases such as psoriasis, neuropathic pain, and lupus.
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Affiliation(s)
- Natalie C Wilcox
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Golnar Taheri
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Katherine Halievski
- Department of Anesthesiology and Perioperative Medicine, Queen's University, Kingston, Ontario, Canada
| | - Sebastien Talbot
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Jaqueline R Silva
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada; Department of Anesthesiology and Perioperative Medicine, Queen's University, Kingston, Ontario, Canada; Centre for Neuroscience Studies, Queen's University, Kingston, Ontario, Canada
| | - Nader Ghasemlou
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada; Department of Anesthesiology and Perioperative Medicine, Queen's University, Kingston, Ontario, Canada; Centre for Neuroscience Studies, Queen's University, Kingston, Ontario, Canada.
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2
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Yang X, Cai M. New Insights into the Mutual Promotion of Rosacea, Anxiety, and Depression from Neuroendocrine Immune Aspects. Clin Cosmet Investig Dermatol 2023; 16:1363-1371. [PMID: 37275216 PMCID: PMC10238710 DOI: 10.2147/ccid.s413237] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 05/22/2023] [Indexed: 06/07/2023]
Abstract
Rosacea is a common chronic inflammatory skin disease with a complex etiology and undefined pathogenesis, and there is still a lack of targeted clinical treatment. Patients with rosacea are at a higher risk of anxiety and depression compared to the healthy population. Compared to skin conditions such as acne and psoriasis, rosacea has been much less studied in relation to multiple-etiology psychiatric disorders such as anxiety and depression. In contrast to the mainstream belief that the causal association between rosacea and psychiatric disorders is that rosacea increases the psychological burden of patients and thus triggers psychiatric disorders simply by altering their facial appearance, this review outlines the possible common mechanisms between rosacea and anxiety and depression disorders, starting from the pathophysiological mechanisms of transient receptor potential family cation channels, HPA axis, and Th1/Th17 cell polarization. It envisages the possibility of the neuroendocrine-immune interplay between rosacea and anxiety and depression, and new ideas on the complex causal relationship between rosacea and psychiatric disorders, offering more orientations to open up new therapeutic approaches for rosacea.
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Affiliation(s)
- Xiaoting Yang
- Department of Dermatology and Venereology, the Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650101, People’s Republic of China
| | - Mei Cai
- Department of Dermatology and Venereology, the Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650101, People’s Republic of China
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3
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Yan X, Zhang Y, Lang H, Huang Z, Chen X, He H, Zhao Q, Wang J. Research on the mechanism of prednisone in the treatment of ITP via VIP/PACAP-mediated intestinal immune dysfunction. Eur J Med Res 2023; 28:67. [PMID: 36750876 PMCID: PMC9906942 DOI: 10.1186/s40001-023-00987-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 01/03/2023] [Indexed: 02/09/2023] Open
Abstract
RATIONALE Immune thrombocytopenia (ITP) is thought to be a result of immune dysfunction, which is treated by glucocorticoids such as prednisone. Vasoactive intestinal peptide (VIP) and pituitary adenylate cyclase activating polypeptide (PACAP) have immunomodulatory properties, but their role in intestinal immune control is unclear. The major goal of this study was to look at the effects of prednisone on platelet, VIP, and PACAP levels in ITP mice, as well as the regulatory system that controls intestinal immunity. METHODS Eighteen BALB/c mice were randomly divided into three groups: blank control group, model control group, and prednisone group, with six mice in each group. The ITP animal model control group and the prednisone group were injected with anti-platelet serum (APS) to replicate the ITP animal model. The prednisone group began prednisone intervention on the 8th day. Platelet count was dynamically measured before APS injection, on the 4th day of injection, on the 1st day of administration, on the 4th day of administration, and at the end of the experiment. After the experiment, the expression of p53 protein in mouse mesenteric lymph node lymphocytes was detected by immunohistochemistry. The changes in lymphocyte apoptosis rate in mouse mesenteric lymph nodes were detected by in situ terminal transferase labeling (TUNEL). The contents of VIP and PACAP in the mouse brain, colon, and serum were detected by enzyme-linked immunosorbent assay (ELISA). The contents of IFN-γ, IL-4, IL-10, IL-17A in the mouse spleen were detected by ELISA. RESULTS ①Changes of peripheral platelet count: there was no significant difference in platelet count among the three groups before modeling; on the 4th day, the platelet count decreased in the model control group and prednisone group; on the 8th day, the number of platelets in model control group and prednisone group was at the lowest level; on the 12th day, the platelet count in prednisone group recovered significantly; on the 15th day, the platelet count in prednisone group continued to rise. ②Changes of VIP, PACAP: compared with the blank control group, VIP and PACAP in the model control group decreased significantly in the brain, colon, and serum. Compared with the model control group, the levels of VIP and PACAP in the brain, colon, and serum in the prednisone group were increased except for serum PACAP. ③Changes of mesenteric lymphocytes: the expression of p53 protein in the mesenteric lymph nodes of model control group mice was significantly higher than that of blank control group mice. After prednisone intervention, the expression of p53 protein decreased significantly.④Changes of cytokines in spleen: compared with blank control group, IFN- γ, IL-17A increased and IL-4 and IL-10 decreased in model control group. After prednisone intervention, IFN- γ, IL-17A was down-regulated and IL-4 and IL-10 were upregulated. CONCLUSIONS Prednisone-upregulated VIP and PACAP levels decreased P53 protein expression and apoptosis rate in mesenteric lymph node lymphocytes and affected cytokine expression in ITP model mice. Therefore, we speculate that the regulation of intestinal immune function may be a potential mechanism of prednisone in treating ITP.
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Affiliation(s)
- Xiang Yan
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yayue Zhang
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Haiyan Lang
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Ziming Huang
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Xinyi Chen
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Hao He
- grid.508540.c0000 0004 4914 235XXi’an Medical University, Xi An, Shaanxi China
| | - Qian Zhao
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Jun Wang
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, China. .,Department of Hematology, Zhejiang Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang, China.
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4
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Huang X, Li F, Wang F. Neural Regulation of Innate Immunity in Inflammatory Skin Diseases. Pharmaceuticals (Basel) 2023; 16:246. [PMID: 37259392 PMCID: PMC9961653 DOI: 10.3390/ph16020246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/22/2023] [Accepted: 01/31/2023] [Indexed: 09/19/2023] Open
Abstract
As the largest barrier organ of the body, the skin is highly innervated by peripheral sensory neurons. The major function of these sensory neurons is to transmit sensations of temperature, pain, and itch to elicit protective responses. Inflammatory skin diseases are triggered by the aberrant activation of immune responses. Recently, increasing evidence has shown that the skin peripheral nervous system also acts as a regulator of immune responses, particularly innate immunity, in various skin inflammatory processes. Meanwhile, immune cells in the skin can express receptors that respond to neuropeptides/neurotransmitters, leading to crosstalk between the immune system and nervous system. Herein, we highlight recent advances of such bidirectional neuroimmune interactions in certain inflammatory skin conditions.
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Affiliation(s)
- Xiaobao Huang
- Department of Dermatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Fengxian Li
- Department of Anesthesiology, Zhujiang Hospital of Southern Medical University, Guangzhou 510282, China
| | - Fang Wang
- Department of Dermatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
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5
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Zhu Y, Duan S, Wang M, Deng Z, Li J. Neuroimmune Interaction: A Widespread Mutual Regulation and the Weapons for Barrier Organs. Front Cell Dev Biol 2022; 10:906755. [PMID: 35646918 PMCID: PMC9130600 DOI: 10.3389/fcell.2022.906755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 04/26/2022] [Indexed: 12/12/2022] Open
Abstract
Since the embryo, the nervous system and immune system have been interacting to regulate each other’s development and working together to resist harmful stimuli. However, oversensitive neural response and uncontrolled immune attack are major causes of various diseases, especially in barrier organs, while neural-immune interaction makes it worse. As the first defense line, the barrier organs give a guarantee to maintain homeostasis in external environment. And the dense nerve innervation and abundant immune cell population in barrier organs facilitate the neuroimmune interaction, which is the physiological basis of multiple neuroimmune-related diseases. Neuroimmune-related diseases often have complex mechanisms and require a combination of drugs, posing challenges in finding etiology and treatment. Therefore, it is of great significance to illustrate the specific mechanism and exact way of neuro-immune interaction. In this review, we first described the mutual regulation of the two principal systems and then focused on neuro-immune interaction in the barrier organs, including intestinal tract, lungs and skin, to clarify the mechanisms and provide ideas for clinical etiology exploration and treatment.
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Affiliation(s)
- Yan Zhu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
| | - Shixin Duan
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
| | - Mei Wang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
| | - Zhili Deng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Zhili Deng, ; Ji Li,
| | - Ji Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Zhili Deng, ; Ji Li,
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6
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Fraquelli C, Hauzinger J, Humpel C, Nolano M, Provitera V, Sharma VK, Loh P, Pidsudko Z, Blatsios G, Troger J. Serpinin in the Skin. Biomedicines 2022; 10:biomedicines10010183. [PMID: 35052862 PMCID: PMC8773586 DOI: 10.3390/biomedicines10010183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 02/01/2023] Open
Abstract
The serpinins are relatively novel peptides generated by proteolytic processing of chromogranin A and they are comprised of free serpinin, serpinin-RRG and pGlu-serpinin. In this study, the presence and source of these peptides were studied in the skin. By Western blot analysis, a 40 kDa and a 50 kDa protein containing the sequence of serpinin were detected in the trigeminal ganglion and dorsal root ganglia in rats but none in the skin. RP-HPLC followed by EIA revealed that the three serpinins are present in similar, moderate amounts in rat dorsal root ganglia, whereas in the rat skin, free serpinin represents the predominant molecular form. There were abundant serpinin-positive cells in rat dorsal root ganglia and colocalization with substance P was evident. However, much more widespread distribution of the serpinins was found in dorsal root ganglia when compared with substance P. In the skin, serpinin immunoreactivity was found in sensory nerves and showed colocalization with substance P; as well, some was present in autonomic nerves. Thus, although not exclusively, there is evidence that serpinin is a constituent of the sensory innervation of the skin. The serpinins are biologically highly active and might therefore be of functional significance in the skin.
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Affiliation(s)
- Cristina Fraquelli
- Department of Ophthalmology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (C.F.); (J.H.); (G.B.)
| | - Jasmine Hauzinger
- Department of Ophthalmology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (C.F.); (J.H.); (G.B.)
| | - Christian Humpel
- Laboratory of Psychiatry and Experimental Alzheimers Research, Department of Psychiatry, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria;
| | - Maria Nolano
- Skin Biopsy Laboratory, Department of Neurology, Instituti Clinici Scientifici Maugeri IRCCS, Via Maugeri 4, 27100 Pavia, Italy; (M.N.); (V.P.)
- Department of Neurosciences, Reproductive Sciences and Odontostomatology, University Federico II of Naples, 80100 Naples, Italy
| | - Vincenzo Provitera
- Skin Biopsy Laboratory, Department of Neurology, Instituti Clinici Scientifici Maugeri IRCCS, Via Maugeri 4, 27100 Pavia, Italy; (M.N.); (V.P.)
| | - Vinay Kumar Sharma
- Section of Cellular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA; (V.K.S.); (P.L.)
| | - Peng Loh
- Section of Cellular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA; (V.K.S.); (P.L.)
| | - Zenon Pidsudko
- Department of Animal Anatomy, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland;
| | - Georgios Blatsios
- Department of Ophthalmology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (C.F.); (J.H.); (G.B.)
| | - Josef Troger
- Department of Ophthalmology, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria; (C.F.); (J.H.); (G.B.)
- Correspondence: ; Tel.: +43-512-504-27343
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7
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Somatosensory and autonomic neuronal regulation of the immune response. Nat Rev Neurosci 2022; 23:157-171. [PMID: 34997214 DOI: 10.1038/s41583-021-00555-4] [Citation(s) in RCA: 75] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/14/2021] [Indexed: 12/11/2022]
Abstract
Bidirectional communication between the peripheral nervous system (PNS) and the immune system is a crucial part of an effective but balanced mammalian response to invading pathogens, tissue damage and inflammatory stimuli. Here, we review how somatosensory and autonomic neurons regulate immune cellular responses at barrier tissues and in peripheral organs. Immune cells express receptors for neuronal mediators, including neuropeptides and neurotransmitters, allowing neurons to influence their function in acute and chronic inflammatory diseases. Distinct subsets of peripheral sensory, sympathetic, parasympathetic and enteric neurons are able to signal to innate and adaptive immune cells to modulate their cellular functions. In this Review, we highlight recent studies defining the molecular mechanisms by which neuroimmune signalling mediates tissue homeostasis and pathology. Understanding the neural circuitry that regulates immune responses can offer novel targets for the treatment of a wide array of diseases.
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8
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Duarte LF, Reyes A, Farías MA, Riedel CA, Bueno SM, Kalergis AM, González PA. Crosstalk Between Epithelial Cells, Neurons and Immune Mediators in HSV-1 Skin Infection. Front Immunol 2021; 12:662234. [PMID: 34012447 PMCID: PMC8126613 DOI: 10.3389/fimmu.2021.662234] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 04/06/2021] [Indexed: 12/12/2022] Open
Abstract
Herpes simplex virus type 1 (HSV-1) infection is highly prevalent in humans, with approximately two-thirds of the world population living with this virus. However, only a fraction of those carrying HSV-1, which elicits lifelong infections, are symptomatic. HSV-1 mainly causes lesions in the skin and mucosae but reaches the termini of sensory neurons innervating these tissues and travels in a retrograde manner to the neuron cell body where it establishes persistent infection and remains in a latent state until reactivated by different stimuli. When productive reactivations occur, the virus travels back along axons to the primary infection site, where new rounds of replication are initiated in the skin, in recurrent or secondary infections. During this process, new neuron infections occur. Noteworthy, the mechanisms underlying viral reactivations and the exit of latency are somewhat poorly understood and may be regulated by a crosstalk between the infected neurons and components of the immune system. Here, we review and discuss the immune responses that occur at the skin during primary and recurrent infections by HSV-1, as well as at the interphase of latently-infected neurons. Moreover, we discuss the implications of neuronal signals over the priming and migration of immune cells in the context of HSV-1 infection.
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Affiliation(s)
- Luisa F Duarte
- Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Antonia Reyes
- Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Mónica A Farías
- Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Claudia A Riedel
- Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Susan M Bueno
- Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M Kalergis
- Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Endocrinología, Facultad de Medicina, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo A González
- Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
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9
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Abstract
Classically, skin was considered a mere structural barrier protecting organisms from a diversity of environmental insults. In recent decades, the cutaneous immune system has become recognized as a complex immunologic barrier involved in both antimicrobial immunity and homeostatic processes like wound healing. To sense a variety of chemical, mechanical, and thermal stimuli, the skin harbors one of the most sophisticated sensory networks in the body. However, recent studies suggest that the cutaneous nervous system is highly integrated with the immune system to encode specific sensations into evolutionarily conserved protective behaviors. In addition to directly sensing pathogens, neurons employ novel neuroimmune mechanisms to provide host immunity. Therefore, given that sensation underlies various physiologies through increasingly complex reflex arcs, a much more dynamic picture is emerging of the skin as a truly systemic organ with highly coordinated physical, immunologic, and neural functions in barrier immunology.
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Affiliation(s)
- Masato Tamari
- Division of Dermatology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri 63110, USA; , .,Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine, St. Louis, Missouri 63110, USA; .,Department of Pediatrics, Jikei University School of Medicine, Minato-ku, Tokyo 105-8461, Japan
| | - Aaron M Ver Heul
- Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine, St. Louis, Missouri 63110, USA; .,Division of Allergy and Immunology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri 63110, USA
| | - Brian S Kim
- Division of Dermatology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri 63110, USA; , .,Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine, St. Louis, Missouri 63110, USA; .,Department of Anesthesiology, Washington University School of Medicine, St. Louis, Missouri 63110, USA.,Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri 63110, USA
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10
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Zhang X, He Y. The Role of Nociceptive Neurons in the Pathogenesis of Psoriasis. Front Immunol 2020; 11:1984. [PMID: 33133059 PMCID: PMC7550422 DOI: 10.3389/fimmu.2020.01984] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 07/22/2020] [Indexed: 12/21/2022] Open
Abstract
Psoriasis is a chronic inflammatory skin disease. Emerging evidence shows that neurogenic inflammation, induced by nociceptive neurons and T helper 17 cell (Th17) responses, has a fundamental role in maintaining the changes in the immune system due to psoriasis. Nociceptive neurons, specific primary sensory nerves, have a multi-faceted role in detecting noxious stimuli, maintaining homeostasis, and regulating the immunity responses in the skin. Therefore, it is critical to understand the connections and interplay between the nociceptive neurons and the immune system in psoriasis. Here, we review works on the altered innervation that occurs in psoriasis. We examine how these distinct sensory neurons and their signal transducers participate in regulating inflammation. Numerous clinical studies report the dysfunction of nociceptive neurons in psoriasis. We discuss the mechanism behind the inconsistent activation of nociceptive neurons. Moreover, we review how neuropeptides, involved in regulating Th17 responses and the role of nociceptive neurons, regulate immunity in psoriasis. Understanding how nociceptive neurons regulate immune responses enhances our knowledge of the neuroimmunity involved in the pathogenesis of psoriasis and may form the basis for new approaches to treat it.
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Affiliation(s)
- Xuan Zhang
- Department of Dermatology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Yanling He
- Department of Dermatology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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11
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Zhang Y, Zhang H, Jiang B, Yan S, Lu J. A promising therapeutic target for psoriasis: Neuropeptides in human skin. Int Immunopharmacol 2020; 87:106755. [PMID: 32736190 DOI: 10.1016/j.intimp.2020.106755] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/04/2020] [Accepted: 06/26/2020] [Indexed: 11/29/2022]
Abstract
Psoriasis is a chronic inflammatory skin disease featured by excessive proliferation of keratinocytes, clearly defined round erythema and dry, scaly plaques, long-term inflammatory cells infiltration in skin lesions. However, the physiopathological mechanism of psoriasis is still not clearly understood. Neuropeptides, a class of peptides secreted by the nervous system, may play important roles in promoting excessive proliferation of keratinocyte, enhancing angiogenesis, vasodilation, plasma extravasation and chemotaxis of inflammatory cells during the development of psoriasis. To understand the pathogenesis of neuropeptides in psoriasis, we summarized the function of several common neuropeptides in psoriasis and hypothesize neuropeptides may serve as therapeutic potential novel targets in psoriasis.
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Affiliation(s)
- Yue Zhang
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Hanyi Zhang
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Boyue Jiang
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Siyu Yan
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Jianyun Lu
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
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12
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Sandoval-Talamantes AK, Gómez-González BA, Uriarte-Mayorga DF, Martínez-Guzman MA, Wheber-Hidalgo KA, Alvarado-Navarro A. Neurotransmitters, neuropeptides and their receptors interact with immune response in healthy and psoriatic skin. Neuropeptides 2020; 79:102004. [PMID: 31902596 DOI: 10.1016/j.npep.2019.102004] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 12/22/2019] [Accepted: 12/22/2019] [Indexed: 02/06/2023]
Abstract
Psoriasis is a chronic inflammatory disease with a multifactorial origin that affects the skin. It is characterized by keratinocyte hyperproliferation, which results in erythemato-squamous plaques. Just as the immune system plays a fundamental role in psoriasis physiopathology, the nervous system maintains the inflammatory process through the neuropeptides and neurotransmitters synthesis, as histamine, serotonin, calcitonin gene-related peptide, nerve growth factor, vasoactive intestinal peptide, substance P, adenosine, glucagon-like peptide, somatostatin and pituitary adenylate cyclase polypeptide. In patients with psoriasis, the systemic or in situ expression of these chemical mediators and their receptors are altered, which affects the clinical activity of patients due to its link to the immune system, provoking neurogenic inflammation. It is important to establish the role of the nervous system since it could represent a therapeutic alternative for psoriasis patients. The aim of this review is to offer a detailed review of the current literature about the neuropeptides and neurotransmitters involved in the physiopathology of psoriasis.
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Affiliation(s)
- Ana Karen Sandoval-Talamantes
- Centro de Reabilitación Infantil Teletón de Occidente, Copal 4575, Col. Arboledas del Sur, 44980 Guadalajara, Jalisco, México
| | - B A Gómez-González
- Instituto Dermatológico de Jalisco "Dr. José Barba Rubio", Av. Federalismo Norte 3102, Col. Atemajac del Valle, 45190 Zapopan, Jalisco, México
| | - D F Uriarte-Mayorga
- Instituto Dermatológico de Jalisco "Dr. José Barba Rubio", Av. Federalismo Norte 3102, Col. Atemajac del Valle, 45190 Zapopan, Jalisco, México
| | - M A Martínez-Guzman
- Unima Diagnósticos de México, Paseo de los Mosqueteros 4181, Col. Villa Universitaria, 45110 Zapopan, Jalisco, México
| | - Katia Alejandra Wheber-Hidalgo
- Instituto Dermatológico de Jalisco "Dr. José Barba Rubio", Av. Federalismo Norte 3102, Col. Atemajac del Valle, 45190 Zapopan, Jalisco, México
| | - Anabell Alvarado-Navarro
- Centro de Investigación en Inmunología y dermatología, Universidad de Guadalajara, México, Sierra Mojada 950, Col. Independencia, 44340, Guadalajara, Jalisco, México.
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Abstract
Pain is a hallmark of tissue injury, inflammatory diseases, pathogen invasion and neuropathy. It is mediated by nociceptor sensory neurons that innervate the skin, joints, bones, muscles and mucosal tissues and protects organisms from noxious stimuli. Nociceptors are sensitized by inflammatory mediators produced by the immune system, including cytokines, lipid mediators and growth factors, and can also directly detect pathogens and their secreted products to produce pain during infection. Upon activation, nociceptors release neuropeptides from their terminals that potently shape the function of innate and adaptive immune cells. For some pathogens, neuron-immune interactions enhance host protection from infection, but for other pathogens, neuron-immune signalling pathways can be exploited to facilitate pathogen survival. Here, we discuss the role of nociceptor interactions with the immune system in pain and infection and how understanding these pathways could produce new approaches to treat infectious diseases and chronic pain.
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14
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Mehta D, Granstein RD. Immunoregulatory Effects of Neuropeptides on Endothelial Cells: Relevance to Dermatological Disorders. Dermatology 2019; 235:175-186. [PMID: 30808842 DOI: 10.1159/000496538] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 12/31/2018] [Indexed: 11/19/2022] Open
Abstract
Many skin diseases, including psoriasis and atopic dermatitis, have a neurogenic component. In this regard, bidirectional interactions between components of the nervous system and multiple target cells in the skin and elsewhere have been receiving increasing attention. Neuropeptides released by sensory nerves that innervate the skin can directly modulate functions of keratinocytes, Langerhans cells, dermal dendritic cells, mast cells, dermal microvascular endothelial cells and infiltrating immune cells. As a result, neuropeptides and neuropeptide receptors participate in a complex, interdependent network of mediators that modulate the skin immune system, skin inflammation, and wound healing. In this review, we will focus on recent studies demonstrating the roles of α-melanocyte-stimulating hormone, calcitonin gene-related peptide, substance P, somatostatin, vasoactive intestinal peptide, pituitary adenylate cyclase-activating peptide, and nerve growth factor in modulating inflammation and immunity in the skin through their effects on dermal microvascular endothelial cells.
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Affiliation(s)
- Devina Mehta
- Department of Dermatology, Weill Cornell Medicine, New York, New York, USA
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15
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Choi JE, Di Nardo A. Skin neurogenic inflammation. Semin Immunopathol 2018; 40:249-259. [PMID: 29713744 DOI: 10.1007/s00281-018-0675-z] [Citation(s) in RCA: 164] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2017] [Accepted: 03/06/2018] [Indexed: 01/12/2023]
Abstract
The epidermis closely interacts with nerve endings, and both epidermis and nerves produce substances for mutual sustenance. Neuropeptides, like substance P (SP) and calcitonin gene-related protein (CGRP), are produced by sensory nerves in the dermis; they induce mast cells to release vasoactive amines that facilitate infiltration of neutrophils and T cells. Some receptors are more important than others in the generation of itch. The Mas-related G protein-coupled receptors (Mrgpr) family as well as transient receptor potential ankyrin 1 (TRPA1) and protease activated receptor 2(Par2) have important roles in itch and inflammation. The activation of MrgprX1 degranulates mast cells to communicate with sensory nerve and cutaneous cells for developing neurogenic inflammation. Mrgprs and transient receptor potential vanilloid 4 (TRPV4) are crucial for the generation of skin diseases like rosacea, while SP, CGRP, somatostatin, β-endorphin, vasoactive intestinal peptide (VIP), and pituitary adenylate cyclase-activating polypeptide (PACAP) can modulate the immune system during psoriasis development. The increased level of SP, in atopic dermatitis, induces the release of interferon (IFN)-γ, interleukin (IL)-4, tumor necrosis factor (TNF)-α, and IL-10 from the peripheral blood mononuclear leukocytes. We are finally starting to understand the intricate connections between the skin neurons and resident skin cells and how their interaction can be key to controlling inflammation and from there the pathogenesis of diseases like atopic dermatitis, psoriasis, and rosacea.
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Affiliation(s)
- Jae Eun Choi
- Department of Dermatology, University of California San Diego, 9500 Gilman Drive #0869, La Jolla, CA, 92093, USA
| | - Anna Di Nardo
- Department of Dermatology, University of California San Diego, 9500 Gilman Drive #0869, La Jolla, CA, 92093, USA.
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16
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Holmes AD, Steinhoff M. Integrative concepts of rosacea pathophysiology, clinical presentation and new therapeutics. Exp Dermatol 2016; 26:659-667. [DOI: 10.1111/exd.13143] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2016] [Indexed: 12/13/2022]
Affiliation(s)
| | - Martin Steinhoff
- Department of Dermatology; UCD Charles Institute for Translational Dermatology; University College Dublin; Dublin Ireland
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17
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Ding W, Stohl LL, Xu L, Zhou XK, Manni M, Wagner JA, Granstein RD. Calcitonin Gene-Related Peptide-Exposed Endothelial Cells Bias Antigen Presentation to CD4+ T Cells toward a Th17 Response. THE JOURNAL OF IMMUNOLOGY 2016; 196:2181-94. [PMID: 26829986 PMCID: PMC4761517 DOI: 10.4049/jimmunol.1500303] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 01/03/2016] [Indexed: 01/23/2023]
Abstract
Calcitonin gene-related peptide (CGRP) is a neuropeptide with well-established immunomodulatory functions. CGRP-containing nerves innervate dermal blood vessels and lymph nodes. We examined whether CGRP regulates the outcome of Ag presentation by Langerhans cells (LCs) to T cells through actions on microvascular endothelial cells (ECs). Exposure of primary murine dermal microvascular ECs (pDMECs) to CGRP followed by coculture with LCs, responsive CD4(+) T cells and Ag resulted in increased production of IL-6 and IL-17A accompanied by inhibition of IFN-γ, IL-4, and IL-22 compared with wells containing pDMECs treated with medium alone. Physical contact between ECs and LCs or T cells was not required for this effect and, except for IL-4, we demonstrated that IL-6 production by CGRP-treated pDMECs was involved in these effects. CD4(+) cells expressing cytoplasmic IL-17A were increased, whereas cells expressing cytoplasmic IFN-γ or IL-4 were decreased by the presence of CGRP-treated pDMECs. In addition, the level of retinoic acid receptor-related orphan receptor γt mRNA was significantly increased, whereas T-bet and GATA3 expression was inhibited. Immunization at the site of intradermally administered CGRP led to a similar bias in CD4(+) T cells from draining lymph node cells toward IL-17A and away from IFN-γ. Actions of nerve-derived CGRP on ECs may have important regulatory effects on the outcome of Ag presentation with consequences for the expression of inflammatory skin disorders involving Th17 cells.
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Affiliation(s)
- Wanhong Ding
- Department of Dermatology, Weill Cornell Medical College, New York, NY 10021
| | - Lori L Stohl
- Department of Dermatology, Weill Cornell Medical College, New York, NY 10021
| | - Linghui Xu
- Department of Dermatology, Weill Cornell Medical College, New York, NY 10021
| | - Xi K Zhou
- Department of Health Care Policy and Research, Weill Cornell Medical College, New York, NY 10065; and
| | - Michela Manni
- Department of Dermatology, Weill Cornell Medical College, New York, NY 10021
| | - John A Wagner
- Department of Cell and Developmental Biology, Weill Cornell Medical College, New York, NY 10065; and Feil Family Brain and Mind Research Institute, Weill Cornell Medical College, New York, NY 10065
| | - Richard D Granstein
- Department of Dermatology, Weill Cornell Medical College, New York, NY 10021;
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18
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Jimeno R, Leceta J, Garín M, Ortiz AM, Mellado M, Rodríguez-Frade JM, Martínez C, Pérez-García S, Gomariz RP, Juarranz Y. Th17 polarization of memory Th cells in early arthritis: the vasoactive intestinal peptide effect. J Leukoc Biol 2015; 98:257-69. [PMID: 25957307 DOI: 10.1189/jlb.3a0714-327r] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 04/12/2015] [Indexed: 01/15/2023] Open
Abstract
Several studies in humans indicate the implication of Th17 cells in RA. Therapies targeting their pathogenicity, as well as their plasticity to the Th17/1 phenotype, could ameliorate the progression of the pathology. The neuroendocrine environment has a major impact on the differentiation of lymphoid cells. VIP is present in the microenvironment of the joint, and its known therapeutic effects are supported by several studies on RA. We examine the ability of VIP to modulate the differentiation of Th17 cells. Peripheral blood CD4(+)CD45RO(+) T cells from HD and eRA patients were expanded under Th17-polarizing conditions in the presence of TGF-β. After 7 days, the higher IL-17A, IL-21, and IL-9 levels and lower IL-22 levels indicate the nonpathogenic profile for Th17 cells in HD. In contrast, Th17 cells from eRA patients produced significantly more IL-22 and IFN-γ, and these cells show a more Th17/1 profile, indicating a pathogenic phenotype. Interestingly, when VIP was present in the Th17 conditioned medium, increased levels of IL-10 and IL-9 were detected in HD and eRA patients. VIP also reduced the levels of IL-22 in eRA patients. These data suggest that VIP reduces the pathogenic profile of the Th17-polarized cells. This effect was accompanied by an increased in the Treg/Th17 profile, as shown by the increase levels of Foxp3. In conclusion, this report addresses a novel and interesting question on the effect of VIP on human Th17 cells and adds clinical relevance by analyzing, in parallel, HD and eRA patients.
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Affiliation(s)
- Rebeca Jimeno
- Departamento de Biología Celular, Facultad de *Biología y Medicina, Universidad Complutense de Madrid, Madrid, Spain; División de Terapias Innovadoras en el S. Hematopoyético, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/Centro de Investigación Biomédica en Red de Enfermedades Raras, Unidad Mixta de Terapias Avanzadas, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/IIS Fundación Jiménez Díaz, Madrid, Spain; Servicio de Reumatología, Instituto de Investigación Sanitaria Hospital La Princesa, Madrid, Spain; and Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Javier Leceta
- Departamento de Biología Celular, Facultad de *Biología y Medicina, Universidad Complutense de Madrid, Madrid, Spain; División de Terapias Innovadoras en el S. Hematopoyético, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/Centro de Investigación Biomédica en Red de Enfermedades Raras, Unidad Mixta de Terapias Avanzadas, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/IIS Fundación Jiménez Díaz, Madrid, Spain; Servicio de Reumatología, Instituto de Investigación Sanitaria Hospital La Princesa, Madrid, Spain; and Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Marina Garín
- Departamento de Biología Celular, Facultad de *Biología y Medicina, Universidad Complutense de Madrid, Madrid, Spain; División de Terapias Innovadoras en el S. Hematopoyético, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/Centro de Investigación Biomédica en Red de Enfermedades Raras, Unidad Mixta de Terapias Avanzadas, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/IIS Fundación Jiménez Díaz, Madrid, Spain; Servicio de Reumatología, Instituto de Investigación Sanitaria Hospital La Princesa, Madrid, Spain; and Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Ana M Ortiz
- Departamento de Biología Celular, Facultad de *Biología y Medicina, Universidad Complutense de Madrid, Madrid, Spain; División de Terapias Innovadoras en el S. Hematopoyético, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/Centro de Investigación Biomédica en Red de Enfermedades Raras, Unidad Mixta de Terapias Avanzadas, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/IIS Fundación Jiménez Díaz, Madrid, Spain; Servicio de Reumatología, Instituto de Investigación Sanitaria Hospital La Princesa, Madrid, Spain; and Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Mario Mellado
- Departamento de Biología Celular, Facultad de *Biología y Medicina, Universidad Complutense de Madrid, Madrid, Spain; División de Terapias Innovadoras en el S. Hematopoyético, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/Centro de Investigación Biomédica en Red de Enfermedades Raras, Unidad Mixta de Terapias Avanzadas, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/IIS Fundación Jiménez Díaz, Madrid, Spain; Servicio de Reumatología, Instituto de Investigación Sanitaria Hospital La Princesa, Madrid, Spain; and Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Jose Miguel Rodríguez-Frade
- Departamento de Biología Celular, Facultad de *Biología y Medicina, Universidad Complutense de Madrid, Madrid, Spain; División de Terapias Innovadoras en el S. Hematopoyético, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/Centro de Investigación Biomédica en Red de Enfermedades Raras, Unidad Mixta de Terapias Avanzadas, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/IIS Fundación Jiménez Díaz, Madrid, Spain; Servicio de Reumatología, Instituto de Investigación Sanitaria Hospital La Princesa, Madrid, Spain; and Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Carmen Martínez
- Departamento de Biología Celular, Facultad de *Biología y Medicina, Universidad Complutense de Madrid, Madrid, Spain; División de Terapias Innovadoras en el S. Hematopoyético, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/Centro de Investigación Biomédica en Red de Enfermedades Raras, Unidad Mixta de Terapias Avanzadas, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/IIS Fundación Jiménez Díaz, Madrid, Spain; Servicio de Reumatología, Instituto de Investigación Sanitaria Hospital La Princesa, Madrid, Spain; and Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Selene Pérez-García
- Departamento de Biología Celular, Facultad de *Biología y Medicina, Universidad Complutense de Madrid, Madrid, Spain; División de Terapias Innovadoras en el S. Hematopoyético, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/Centro de Investigación Biomédica en Red de Enfermedades Raras, Unidad Mixta de Terapias Avanzadas, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/IIS Fundación Jiménez Díaz, Madrid, Spain; Servicio de Reumatología, Instituto de Investigación Sanitaria Hospital La Princesa, Madrid, Spain; and Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Rosa P Gomariz
- Departamento de Biología Celular, Facultad de *Biología y Medicina, Universidad Complutense de Madrid, Madrid, Spain; División de Terapias Innovadoras en el S. Hematopoyético, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/Centro de Investigación Biomédica en Red de Enfermedades Raras, Unidad Mixta de Terapias Avanzadas, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/IIS Fundación Jiménez Díaz, Madrid, Spain; Servicio de Reumatología, Instituto de Investigación Sanitaria Hospital La Princesa, Madrid, Spain; and Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Yasmina Juarranz
- Departamento de Biología Celular, Facultad de *Biología y Medicina, Universidad Complutense de Madrid, Madrid, Spain; División de Terapias Innovadoras en el S. Hematopoyético, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/Centro de Investigación Biomédica en Red de Enfermedades Raras, Unidad Mixta de Terapias Avanzadas, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas/IIS Fundación Jiménez Díaz, Madrid, Spain; Servicio de Reumatología, Instituto de Investigación Sanitaria Hospital La Princesa, Madrid, Spain; and Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
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Pituitary Adenylate Cyclase-Activating Polypeptide Is Upregulated in Murine Skin Inflammation and Mediates Transient Receptor Potential Vanilloid-1-Induced Neurogenic Edema. J Invest Dermatol 2015; 135:2209-2218. [PMID: 25905588 DOI: 10.1038/jid.2015.156] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 03/23/2015] [Accepted: 04/08/2015] [Indexed: 12/18/2022]
Abstract
Although pituitary adenylate cyclase-activating polypeptide (PACAP) was described as a key vasoregulator in human skin, little is known about its expression in mouse skin. As it is important to investigate PACAP signaling in translational mouse dermatitis models, we determined its presence, regulation, and role in neurogenic and non-neurogenic cutaneous inflammatory mechanisms. The mRNA of PACAP and its specific receptor PAC1 was detected with real-time PCR in several skin regions at comparable levels. PACAP-38-immunoreactivity measured with radioimmunoassay was similar in plantar and dorsal paw skin and the ear but significantly smaller in the back skin. PACAP and PAC1 mRNA, as well as PACAP-38 and PAC1 protein expression, significantly increased in the plantar skin after intraplantar administration of capsaicin (50 μl, 100 μg ml(-1)), an agonist of the transient receptor potential vanilloid 1 (TRPV1) receptor, evoking chiefly neurogenic inflammation without inflammatory cell accumulation. Intraplantar complete Freund's adjuvant (CFA; 50 μl, 1 mg ml(-1)) also increased PACAP/PAC1 mRNA but not the PACAP peptide. Capsaicin-induced neurogenic paw edema, but not CFA-evoked non-neurogenic swelling, was significantly smaller in PACAP-deficient mice throughout a 24-hour period. To our knowledge, we provide previously unreported evidence for PACAP and PAC1 expression upregulation during skin inflammation of different mechanisms and for its pro-inflammatory function in neurogenic edema formation.
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20
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Azimi E, Lerner EA, Elmariah SB. Altered manifestations of skin disease at sites affected by neurological deficit. Br J Dermatol 2015; 172:988-93. [PMID: 25132518 DOI: 10.1111/bjd.13352] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/07/2014] [Indexed: 01/08/2023]
Abstract
BACKGROUND The contribution of the nervous system to inflammation in general and inflammatory skin disease in particular has been underappreciated. It is now apparent that an intact neural component is required for the conventional clinical manifestations of many inflammatory skin diseases. OBJECTIVES To investigate the relationship between nerve damage and skin disease. METHODS Previous individual reports since 1966 were collected systematically and the clinical observations described therein were placed within current concepts of neurogenic inflammation. RESULTS We reviewed the literature and identified 23 cases of alterations in the appearance or distribution of skin disorders in patients with acquired central or peripheral neural damage or dysfunction. In 19 cases, near or complete resolution of pre-existing skin lesions occurred in areas directly or indirectly supplied by a subsequently injured nervous system. Exacerbation or new onset of skin lesions occurred in only four cases. The neural deficits described included damage within the peripheral or central nervous system resulting in pure sensory, pure motor or combined sensory and motor deficits. CONCLUSIONS These cases highlight the importance of neural innervation and neurogenic inflammation in the development of inflammatory skin disease and prompt further examination of the use of neural blockade as an adjunctive therapy in the treatment of inflammatory dermatoses.
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Affiliation(s)
- E Azimi
- Department of Dermatology, Cutaneous Biology Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, U.S.A
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21
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Ganea D, Hooper KM, Kong W. The neuropeptide vasoactive intestinal peptide: direct effects on immune cells and involvement in inflammatory and autoimmune diseases. Acta Physiol (Oxf) 2015; 213:442-52. [PMID: 25422088 DOI: 10.1111/apha.12427] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 10/13/2014] [Accepted: 11/21/2014] [Indexed: 12/13/2022]
Abstract
Neuropeptides represent an important category of endogenous contributors to the establishment and maintenance of immune deviation in the immune-privileged organs such as the CNS and in the control of acute inflammation in the peripheral immune organs. Vasoactive intestinal peptide (VIP) is a major immunoregulatory neuropeptide widely distributed in the central and peripheral nervous system. In addition to neurones, VIP is synthesized by immune cells which also express VIP receptors. Here, we review the current information on VIP production and VIP-receptor-mediated effects in the immune system, the role of endogenous and exogenous VIP in inflammatory and autoimmune disorders and the present and future VIP therapeutic approaches.
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Affiliation(s)
- D. Ganea
- Department of Microbiology and Immunology; Temple University School of Medicine; Philadelphia PA USA
| | - K. M. Hooper
- Department of Microbiology and Immunology; Temple University School of Medicine; Philadelphia PA USA
| | - W. Kong
- Department of Microbiology and Immunology; Temple University School of Medicine; Philadelphia PA USA
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22
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Alterations of skin innate immunity in lymphedematous limbs: Correlations with opportunistic diseases. Clin Dermatol 2014; 32:592-8. [DOI: 10.1016/j.clindermatol.2014.04.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Vasoactive intestinal peptide maintains the nonpathogenic profile of human th17-polarized cells. J Mol Neurosci 2014; 54:512-25. [PMID: 24805298 DOI: 10.1007/s12031-014-0318-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 04/28/2014] [Indexed: 01/01/2023]
Abstract
The cytokine microenvironment modulates CD4 T cell differentiation causing the shift of naïve CD4 T cells into different cell subsets. This process is also regulated by modulators such as vasoactive intestinal peptide (VIP), a neuropeptide with known immunomodulatory properties on CD4 T cells that exert this action through specific receptors, vasoactive intestinal peptide receptor (VPAC)1 and VPAC2. Our results show that the pattern of VIP receptors expression ratio is modified during Th17 differentiation. In this report, we evaluate the capacity of VIP to modulate naïve human cells into Th17 cells in vitro by analyzing their functional phenotype. The presence of VIP maintains the nonpathogenic profile of Th17-polarized cells, increases the proliferation rate, and decreases their Th1 potential. VIP induces the upregulation of the STAT3 gene interaction with the VPAC1 receptor during the onset of Th17 differentiation. Moreover, RAR-related orphan receptor C (RORC), RAR-related orphan receptor A (RORA), and interleukin (IL)-17A genes are upregulated in the presence of VIP through interaction with VPAC1 and VPAC2 receptors. Interestingly, VIP induces the expression of the IL-23R gene through interaction with the VPAC2 receptor during the expansion phase. This is the first report that describes the differentiation of naïve human T cells to Th17-polarized cells in the presence of VIP and demonstrates how this differentiation regulates the expression of the VIP receptors.
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24
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Nerve-derived transmitters including peptides influence cutaneous immunology. Brain Behav Immun 2013; 34:1-10. [PMID: 23517710 PMCID: PMC3750093 DOI: 10.1016/j.bbi.2013.03.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 02/27/2013] [Accepted: 03/10/2013] [Indexed: 01/01/2023] Open
Abstract
Clinical observations suggest that the nervous and immune systems are closely related. For example, inflammatory skin disorders; such as psoriasis, atopic dermatitis, rosacea and acne; are widely believed to be exacerbated by stress. A growing body of research now suggests that neuropeptides and neurotransmitters serve as a link between these two systems. Neuropeptides and neurotransmitters are released by nerves innervating the skin to influence important actors of the immune system, such as Langerhans cells and mast cells, which are located within close anatomic proximity. Catecholamines and other sympathetic transmitters that are released in response to activation of the sympathetic nervous system are also able to reach the skin and affect immune cells. Neuropeptides appear to direct the outcome of Langerhans cell antigen presentation with regard to the subtypes of Th cells generated and neuropeptides induce the degranulation of mast cells, among other effects. Additionally, endothelial cells, which release many inflammatory mediators and express cell surface molecules that allow leukocytes to exit the bloodstream, appear to be regulated by certain neuropeptides and transmitters. This review focuses on the evidence that products of nerves have important regulatory activities on antigen presentation, mast cell function and endothelial cell biology. These activities are highly likely to have clinical and therapeutic relevance.
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Straub RH, Bijlsma JWJ, Masi A, Cutolo M. Role of neuroendocrine and neuroimmune mechanisms in chronic inflammatory rheumatic diseases--the 10-year update. Semin Arthritis Rheum 2013; 43:392-404. [PMID: 23731531 DOI: 10.1016/j.semarthrit.2013.04.008] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Revised: 04/04/2013] [Accepted: 04/13/2013] [Indexed: 12/20/2022]
Abstract
BACKGROUND Neuroendocrine immunology in musculoskeletal diseases is an emerging scientific field. It deals with the aspects of efferent neuronal and neurohormonal bearing on the peripheral immune and musculoskeletal systems. This review aims to add new information that appeared since 2001. SEARCH STRATEGY The following PubMed search sentence was used to find a total of 15,462 references between 2001 and March 2013: "(rheum* OR SLE OR vasculitis) AND (nerve OR hormone OR neurotransmitter OR neuropeptide OR steroid)." In a continuous process, year by year, this search strategy yielded relevant papers that were screened and collected in a database, which build the platform of this review. RESULTS The main findings are the anti-inflammatory role of androgens, the loss of androgens (androgen drain), the bimodal role of estrogens (support B cells and inhibit macrophages and T cells), increased conversion of androgens to estrogens in inflammation (androgen drain), disturbances of the gonadal axis, inadequate amount of HPA axis hormones relative to inflammation (disproportion principle), biologics partly improve neuroendocrine axes, anti-corticotropin-releasing hormone therapies improve inflammation (antalarmin), bimodal role of the sympathetic nervous system (proinflammatory early, anti-inflammatory late-most probably due to catecholamine-producing local cells), anti-inflammatory role of alpha melanocyte-stimulating hormone, vasoactive intestinal peptide, and the Vagus nerve via α7 nicotinergic receptors. Circadian rhythms of hypothalamic origin are responsible for circadian rhythms of symptoms (neuroimmune link revealed). Important new pain-sensitizing immunological pathways were found in the last decade. CONCLUSIONS The last decade brought much new information that gave birth to the first therapies of chronic inflammatory diseases on the basis of neuroendocrine immune targets. In addition, a new theory linked evolutionary medicine, neuroendocrine regulation of distribution of energy-rich fuels, and volume regulation that can explain many disease sequelae in patients with chronic inflammatory diseases.
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Affiliation(s)
- Rainer H Straub
- Laboratory of Experimental Rheumatology and Neuroendocrino-Immunology, Division of Rheumatology, Department of Internal Medicine I, University Hospital, Regensburg, Germany.
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