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Matsuyama K, Fujikawa K, Matsuki-Fukushima M, Shibato J, Kimura A, Yamashita M, Takenoya F, Rakwal R, Shioda S, Nonaka N. Ontogenetic development of the water channel protein AQP5 in mouse salivary gland tissue. Cell Tissue Res 2023:10.1007/s00441-023-03762-w. [PMID: 36918428 DOI: 10.1007/s00441-023-03762-w] [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: 08/08/2022] [Accepted: 03/03/2023] [Indexed: 03/15/2023]
Abstract
Aquaporins (AQP) are a family of channel proteins expressed in the cell membranes of many tissue types. As water channels, they enable the selective permeation of water molecules and thus play an important role in water transport through the plasma membrane. There are numerous AQP sub-types, among which AQP5 is expressed in the salivary glands. The expression and localization of AQP5 in different salivary gland cells of animal models during fetal development and after birth have enabled the physiological functions of AQP5 to be elucidated, but subsequent changes in the adult phase are unknown. It is known that saliva production tends to decrease with age, but it is unclear how AQP5 activity and function changes developmentally, from young to old including gender differences. In the present study, we sampled the parotid, submandibular, and sublingual glands from young (8 weeks old) and aged (12 months old) mice of both sexes to study the effects of age- and sex-related differences in AQP5 expression. Positive fluorescence immunostaining was detected in the membranes of cells from all gland types, and this was enhanced in juvenile mice from both sexes. Western blot analyses revealed that AQP5 expression levels tended to decrease with age in both male and female animals. Conversely, AQP5 gene expression levels did not change significantly with aging, but were found to be high in submandibular gland cells of both sexes, in parotid gland cells of older female mice, and in the sublingual gland cells of young male mice.
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Affiliation(s)
- Kayo Matsuyama
- Department of Oral Anatomy and Developmental Biology, Showa University School of Dentistry, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Kaoru Fujikawa
- Department of Oral Anatomy and Developmental Biology, Showa University School of Dentistry, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Miwako Matsuki-Fukushima
- Department of Oral Anatomy and Developmental Biology, Showa University School of Dentistry, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Junko Shibato
- Department of Functional Morphology, Shonan University of Medical Sciences, 16-48 Kamishinano, Totsuka-ku, Yokohama, 244-0806, Japan
| | - Ai Kimura
- Department of Functional Morphology, Shonan University of Medical Sciences, 16-48 Kamishinano, Totsuka-ku, Yokohama, 244-0806, Japan
| | - Michio Yamashita
- Department of Physiology and Molecular Sciences, Hoshi University, Shinagawa-ku, Tokyo, Japan
| | - Fumiko Takenoya
- Department of Physiology and Molecular Sciences, Hoshi University, Shinagawa-ku, Tokyo, Japan
| | - Randeep Rakwal
- Faculty of Health and Sport Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, Japan
| | - Seiji Shioda
- Department of Functional Morphology, Shonan University of Medical Sciences, 16-48 Kamishinano, Totsuka-ku, Yokohama, 244-0806, Japan
| | - Naoko Nonaka
- Department of Oral Anatomy and Developmental Biology, Showa University School of Dentistry, Shinagawa-ku, Tokyo, 142-8555, Japan.
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Shajari S, Salahandish R, Zare A, Hassani M, Moossavi S, Munro E, Rashid R, Rosenegger D, Bains JS, Sanati Nezhad A. MicroSweat: A Wearable Microfluidic Patch for Noninvasive and Reliable Sweat Collection Enables Human Stress Monitoring. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2204171. [PMID: 36461733 PMCID: PMC9982588 DOI: 10.1002/advs.202204171] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 10/24/2022] [Indexed: 05/13/2023]
Abstract
Stress affects cognition, behavior, and physiology, leading to lasting physical and mental illness. The ability to detect and measure stress, however, is poor. Increased circulating cortisol during stress is mirrored by cortisol release from sweat glands, providing an opportunity to use it as an external biomarker for monitoring internal emotional state. Despite the attempts at using wearable sensors for monitoring sweat cortisol, there is a lack of reliable wearable sweat collection devices that preserve the concentration and integrity of sweat biomolecules corresponding to stress levels. Here, a flexible, self-powered, evaporation-free, bubble-free, surfactant-free, and scalable capillary microfluidic device, MicroSweat, is fabricated to reliably collect human sweat from different body locations. Cortisol levels are detected corresponding to severe stress ranging from 25 to 125 ng mL-1 averaged across multiple body regions and 100-1000 ng mL-1 from the axilla. A positive nonlinear correlation exists between cortisol concentration and stress levels quantified using the perceived stress scale (PSS). Moreover, owing to the sweat variation in response to environmental effects and physiological differences, the longitudinal and personalized profile of sweat cortisol is acquired, for the first time, for various body locations. The obtained sweat cortisol data is crucial for analyzing human stress in personalized and clinical healthcare sectors.
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Affiliation(s)
- Shaghayegh Shajari
- BioMEMS and Bioinspired Microfluidic LaboratoryDepartment of Biomedical EngineeringUniversity of CalgaryCalgaryAlbertaT2N 1N4Canada
- StressynomicsHotchkiss Brain InstituteCumming School of MedicineUniversity of CalgaryCalgaryAlbertaT2N 1N4Canada
- Department of Mechanical and Manufacturing EngineeringUniversity of CalgaryCalgaryAlbertaT2N 1N4Canada
| | - Razieh Salahandish
- BioMEMS and Bioinspired Microfluidic LaboratoryDepartment of Biomedical EngineeringUniversity of CalgaryCalgaryAlbertaT2N 1N4Canada
- Department of Mechanical and Manufacturing EngineeringUniversity of CalgaryCalgaryAlbertaT2N 1N4Canada
| | - Azam Zare
- BioMEMS and Bioinspired Microfluidic LaboratoryDepartment of Biomedical EngineeringUniversity of CalgaryCalgaryAlbertaT2N 1N4Canada
| | - Mohsen Hassani
- BioMEMS and Bioinspired Microfluidic LaboratoryDepartment of Biomedical EngineeringUniversity of CalgaryCalgaryAlbertaT2N 1N4Canada
| | - Shirin Moossavi
- BioMEMS and Bioinspired Microfluidic LaboratoryDepartment of Biomedical EngineeringUniversity of CalgaryCalgaryAlbertaT2N 1N4Canada
- Department of Physiology and PharmacologyUniversity of CalgaryCalgaryAlbertaT2N 1N4Canada
- International Microbiome CentreCumming School of MedicineHealth Sciences CentreUniversity of CalgaryCalgaryAlbertaT2N 1N4Canada
| | - Emily Munro
- Department of Chemical and Petroleum EngineeringUniversity of CalgaryCalgaryAlbertaT2N1 N4Canada
| | - Ruba Rashid
- Department of Civil EngineeringUniversity of CalgaryCalgaryAlbertaT2N1 N4Canada
| | | | - Jaideep S. Bains
- StressynomicsHotchkiss Brain InstituteCumming School of MedicineUniversity of CalgaryCalgaryAlbertaT2N 1N4Canada
| | - Amir Sanati Nezhad
- BioMEMS and Bioinspired Microfluidic LaboratoryDepartment of Biomedical EngineeringUniversity of CalgaryCalgaryAlbertaT2N 1N4Canada
- Department of Mechanical and Manufacturing EngineeringUniversity of CalgaryCalgaryAlbertaT2N 1N4Canada
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3
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Molecular and Physiological Functions of PACAP in Sweat Secretion. Int J Mol Sci 2023; 24:ijms24054572. [PMID: 36902003 PMCID: PMC10002779 DOI: 10.3390/ijms24054572] [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: 01/22/2023] [Revised: 02/21/2023] [Accepted: 02/24/2023] [Indexed: 03/02/2023] Open
Abstract
Sweat plays a critical role in human body, including thermoregulation and the maintenance of the skin environment and health. Hyperhidrosis and anhidrosis are caused by abnormalities in sweat secretion, resulting in severe skin conditions (pruritus and erythema). Bioactive peptide and pituitary adenylate cyclase-activating polypeptide (PACAP) was isolated and identified to activate adenylate cyclase in pituitary cells. Recently, it was reported that PACAP increases sweat secretion via PAC1R in mice and promotes the translocation of AQP5 to the cell membrane through increasing intracellular [Ca2+] via PAC1R in NCL-SG3 cells. However, intracellular signaling mechanisms by PACAP are poorly clarified. Here, we used PAC1R knockout (KO) mice and wild-type (WT) mice to observe changes in AQP5 localization and gene expression in sweat glands by PACAP treatment. Immunohistochemistry revealed that PACAP promoted the translocation of AQP5 to the lumen side in the eccrine gland via PAC1R. Furthermore, PACAP up-regulated the expression of genes (Ptgs2, Kcnn2, Cacna1s) involved in sweat secretion in WT mice. Moreover, PACAP treatment was found to down-regulate the Chrna1 gene expression in PAC1R KO mice. These genes were found to be involved in multiple pathways related to sweating. Our data provide a solid basis for future research initiatives in order to develop new therapies to treat sweating disorders.
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4
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Yamashita M, Takenoya F, Hirabayashi T, Shibato J, Rakwal R, Takasaki I, Harvey BJ, Chiba Y, Shioda S. Effect of PACAP on sweat secretion by immortalized human sweat gland cells. Peptides 2021; 146:170647. [PMID: 34562532 DOI: 10.1016/j.peptides.2021.170647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 08/19/2021] [Accepted: 09/14/2021] [Indexed: 11/28/2022]
Abstract
The process of sweating plays an important role in the human body, including thermoregulation and maintenance of the environment and health of the skin. It is known that the conditions of hyperhidrosis and anhidrosis are caused by abnormalities in sweat secretion and can result in severe skin conditions such as pruritus and erythema, which significantly reduce the patient's quality of life. However, there are many aspects of the signaling mechanisms in the process of sweating that have not been clarified, and no effective therapies or therapeutic agents have yet been discovered. Previously, it was reported that pituitary adenylate cyclase-activating polypeptide (PACAP) promotes sweating, but details of the underlying mechanism has not been clarified. We used immortalized human eccrine gland cells (NCL-SG3 cell) to investigate how sweat secretion is induced by PACAP. Intracellular Ca2+ levels were increased in these cells following their exposure to physiological concentrations of PACAP. Intracellular Ca2+ was not elevated when cells were concomitantly treated with PA-8, a specific PAC1-R antagonist, suggesting that PAC1-R is involved in the elevation of intracellular Ca2+ levels in response to PACAP treatment. Furthermore, immunocytochemistry experiments showed that aquaporin-5 was translocated from the cytoplasm to the cell membrane by PACAP. These results suggest that PACAP acts on eccrine sweat glands to promote sweat secretion by translocation of aquaporin-5 to the cell membrane in response to increased levels of intracellular Ca2+. These findings also provide a solid basis for future research initiatives to develop new therapies to treat sweating disorders.
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Affiliation(s)
- Michio Yamashita
- Department of Physiology and Molecular Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Fumiko Takenoya
- Department of Physiology and Molecular Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Takahiro Hirabayashi
- Global Research Center for Innovative Life Science, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Junko Shibato
- Global Research Center for Innovative Life Science, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Randeep Rakwal
- Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki, Japan
| | - Ichiro Takasaki
- Department of Pharmacology, Graduate School of Science and Engineering University of Toyama, Toyama, Japan
| | - Brian J Harvey
- Department of Molecular Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, Dublin D9, Ireland
| | - Yoshihiko Chiba
- Department of Physiology and Molecular Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Seiji Shioda
- Global Research Center for Innovative Life Science, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan.
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5
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Hajdú T, Kovács P, Zsigrai E, Takács R, Vágó J, Cho S, Sasi-Szabó L, Becsky D, Keller-Pinter A, Emri G, Rácz K, Reglodi D, Zákány R, Juhász T. Pituitary Adenylate Cyclase Activating Polypeptide Has Inhibitory Effects on Melanoma Cell Proliferation and Migration In Vitro. Front Oncol 2021; 11:681603. [PMID: 34616669 PMCID: PMC8488289 DOI: 10.3389/fonc.2021.681603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 08/19/2021] [Indexed: 11/13/2022] Open
Abstract
Pituitary adenylate cyclase activating polypeptide (PACAP) is an endogenous neuropeptide which is distributed throughout the body. PACAP influences development of various tissues and exerts protective function during cellular stress and in some tumour formation. No evidence is available on its role in neural crest derived melanocytes and its malignant transformation into melanoma. Expression of PACAP receptors was examined in human skin samples, melanoma lesions and in a primary melanocyte cell culture. A2058 and WM35 melanoma cell lines, representing two different stages of melanoma progression, were used to investigate the effects of PACAP. PAC1 receptor was identified in melanocytes in vivo and in vitro and in melanoma cell lines as well as in melanoma lesions. PACAP administration did not alter viability but decreased proliferation of melanoma cells. With live imaging random motility, average speed, vectorial distance and maximum distance of migration of cells were reduced upon PACAP treatment. PACAP administration did not alter viability but decreased proliferation capacity of melanoma cells. On the other hand, PACAP administration decreased the migration of melanoma cell lines towards fibronectin chemoattractant in the Boyden chamber. Furthermore, the presence of the neuropeptide inhibited the invasion capability of melanoma cell lines in Matrigel chambers. In summary, we provide evidence that PACAP receptors are expressed in melanocytes and in melanoma cells. Our results also prove that various aspects of the cellular motility were inhibited by this neuropeptide. On the basis of these results, we propose PACAP signalling as a possible target in melanoma progression.
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Affiliation(s)
- Tibor Hajdú
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Patrik Kovács
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Emese Zsigrai
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Roland Takács
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Judit Vágó
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Sinyoung Cho
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Department of Family Medicine, Seoul National University Hospital, Seoul, South Korea
| | - László Sasi-Szabó
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Dániel Becsky
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Aniko Keller-Pinter
- Department of Biochemistry, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Gabriella Emri
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Kálmán Rácz
- Department of Forensic Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Dora Reglodi
- Department of Anatomy, PTE-MTA PACAP Research Team, Szentagothai Research Center, Medical School, University of Pécs, Pécs, Hungary
| | - Róza Zákány
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Tamás Juhász
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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6
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Tu E, Pearlmutter P, Tiangco M, Derose G, Begdache L, Koh A. Comparison of Colorimetric Analyses to Determine Cortisol in Human Sweat. ACS OMEGA 2020; 5:8211-8218. [PMID: 32309731 PMCID: PMC7161047 DOI: 10.1021/acsomega.0c00498] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 03/19/2020] [Indexed: 05/14/2023]
Abstract
Colorimetric analysis, which relies on a chemical reaction to facilitate a change in visible color, is a great strategy for detecting cortisol, which is necessary to diagnose and manage the wide variety of diseases related to the hormone, because it is simple in design, inexpensive, and reliable as a standard cortisol analysis technique. In this study, four different colorimetric cortisol analyses that use various chromogens, which include sulfuric acid, Porter-Silber reagent, Prussian blue, and blue tetrazolium, are studied. Modifications to the classic Porter-Silber method are made by increasing the carbon content of the alcohol and adding gold nanoparticles, which result in a twofold increase in reaction rate and a slight decrease in the limit of detection (LoD). After a comparison of the reaction rate, LoD, dynamic range, characteristic peaks, and color stability of all methods, blue tetrazolium demonstrates a low LoD (97 ng/mL), broad dynamic range (0.05-2 μg/mL), and quick reaction rate (color development as fast as 10 min), which are well within the requirements for human biofluids. Cortisol in artificial saliva and sweat and in human sweat was determined while confirming that no excipients or other biomarkers interfered with the reactions. Twenty-one human sweat samples were tested using blue tetrazolium and revealed a significant difference between male and female apocrine cortisol concentrations and showed a highly significant difference between apocrine and eccrine cortisol concentrations. Colorimetric methods of cortisol can compete with existing electrochemical sensors because of their similar accuracy and detection range in certain wearable biosensor applications. The simplicity of colorimetric methods advances potential applications in skin-interfaced bio-electronics and point-of-care devices.
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Affiliation(s)
- Ethan Tu
- Department
of Biomedical Engineering, Binghamton University—State
University of New York, Binghamton, New York 13902, United States
- Department
of Biomedical Engineering, Michigan State
University, East Lansing, Michigan 48824, United States
| | - Paul Pearlmutter
- Department
of Biomedical Engineering, Binghamton University—State
University of New York, Binghamton, New York 13902, United States
| | - Michelle Tiangco
- Department
of Biomedical Engineering, Binghamton University—State
University of New York, Binghamton, New York 13902, United States
| | - Gia Derose
- Health
and Wellness Studies Department, Binghamton
University—State University of New York, Binghamton, New York 13902, United States
| | - Lina Begdache
- Health
and Wellness Studies Department, Binghamton
University—State University of New York, Binghamton, New York 13902, United States
| | - Ahyeon Koh
- Department
of Biomedical Engineering, Binghamton University—State
University of New York, Binghamton, New York 13902, United States
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7
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Toth D, Szabo E, Tamas A, Juhasz T, Horvath G, Fabian E, Opper B, Szabo D, Maugeri G, D'Amico AG, D'Agata V, Vicena V, Reglodi D. Protective Effects of PACAP in Peripheral Organs. Front Endocrinol (Lausanne) 2020; 11:377. [PMID: 32765418 PMCID: PMC7381171 DOI: 10.3389/fendo.2020.00377] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 05/12/2020] [Indexed: 12/21/2022] Open
Abstract
Pituitary adenylate cyclase activating polypeptide (PACAP) is a neuropeptide widely distributed in the nervous system, where it exerts strong neuroprotective effects. PACAP is also expressed in peripheral organs but its peripheral protective effects have not been summarized so far. Therefore, the aim of the present paper is to review the existing literature regarding the cytoprotective effects of PACAP in non-neuronal cell types, peripheral tissues, and organs. Among others, PACAP has widespread expression in the digestive system, where it shows protective effects in various intestinal pathologies, such as duodenal ulcer, small bowel ischemia, and intestinal inflammation. PACAP is present in both the exocrine and endocrine pancreas as well as liver where it reduces inflammation and steatosis by interfering with hepatic pathology related to obesity. It is found in several exocrine glands and also in urinary organs, where, with its protective effects being mainly published regarding renal pathologies, PACAP is protective in numerous conditions. PACAP displays anti-inflammatory effects in upper and lower airways of the respiratory system. In the skin, it is involved in the development of inflammatory pathology such as psoriasis and also has anti-allergic effects in a model of contact dermatitis. In the non-neuronal part of the visual system, PACAP showed protective effects in pathological conditions of the cornea and retinal pigment epithelial cells. The positive role of PACAP has been demonstrated on the formation and healing processes of cartilage and bone where it also prevents osteoarthritis and rheumatoid arthritis development. The protective role of PACAP was also demonstrated in the cardiovascular system in different pathological processes including hyperglycaemia-induced endothelial dysfunction and age-related vascular changes. In the heart, PACAP protects against ischemia, oxidative stress, and cardiomyopathies. PACAP is also involved in the protection against the development of pre-senile systemic amyloidosis, which is presented in various peripheral organs in PACAP-deficient mice. The studies summarized here provide strong evidence for the cytoprotective effects of the peptide. The survival-promoting effects of PACAP depend on a number of factors which are also shortly discussed in the present review.
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Affiliation(s)
- Denes Toth
- Department of Forensic Medicine, MTA-PTE PACAP Research Team, University of Pécs Medical School, Pécs, Hungary
| | - Edina Szabo
- Department of Anatomy, MTA-PTE PACAP Research Team, University of Pécs Medical School, Pécs, Hungary
| | - Andrea Tamas
- Department of Anatomy, MTA-PTE PACAP Research Team, University of Pécs Medical School, Pécs, Hungary
| | - Tamas Juhasz
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Department of Biomedical and Biotechnological Sciences, Section of Human Anatomy and Histology, University of Catania, Catania, Italy
| | - Gabriella Horvath
- Department of Anatomy, MTA-PTE PACAP Research Team, University of Pécs Medical School, Pécs, Hungary
| | - Eszter Fabian
- Department of Anatomy, MTA-PTE PACAP Research Team, University of Pécs Medical School, Pécs, Hungary
| | - Balazs Opper
- Department of Anatomy, MTA-PTE PACAP Research Team, University of Pécs Medical School, Pécs, Hungary
| | - Dora Szabo
- Heart Institute, Medical School, University of Pécs, Pécs, Hungary
| | - Grazia Maugeri
- Department of Biomedical and Biotechnological Sciences, Section of Human Anatomy and Histology, University of Catania, Catania, Italy
| | - Agata G. D'Amico
- Department of Drug Sciences, University of Catania, Catania, Italy
| | - Velia D'Agata
- Department of Biomedical and Biotechnological Sciences, Section of Human Anatomy and Histology, University of Catania, Catania, Italy
| | - Viktoria Vicena
- Department of Anatomy, MTA-PTE PACAP Research Team, University of Pécs Medical School, Pécs, Hungary
| | - Dora Reglodi
- Department of Anatomy, MTA-PTE PACAP Research Team, University of Pécs Medical School, Pécs, Hungary
- *Correspondence: Dora Reglodi
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8
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Atlasz T, Werling D, Song S, Szabo E, Vaczy A, Kovari P, Tamas A, Reglodi D, Yu R. Retinoprotective Effects of TAT-Bound Vasoactive Intestinal Peptide and Pituitary Adenylate Cyclase Activating Polypeptide. J Mol Neurosci 2019. [PMID: 30542799 DOI: 10.1007/s12031-018-1229-5/figures/7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
Vasoactive intestinal peptide (VIP) and pituitary adenylate cyclase activating polypeptide (PACAP) belong to the same peptide family and exert a variety of biological functions. Both PACAP and VIP have protective effects in several tissues. While PACAP is known to be a stronger retinoprotective peptide, VIP has very potent anti-inflammatory effects. The need for a non-invasive therapeutic approach has emerged and PACAP has been shown to be retinoprotective when administered in the form of eye drops as well. The cell penetrating peptide TAT is composed of 11 amino acids and tagging of TAT at the C-terminus of neuropeptides PACAP/VIP can enhance the traversing ability of the peptides through the biological barriers. We hypothesized that TAT-bound PACAP and VIP could be more effective in exerting retinoprotective effects when given in eye drops, by increasing the traversing efficacy and enhancing the activation of the PAC1 receptor. Rats were subjected to bilateral carotid artery occlusion (BCCAO), and retinas were processed for histological analysis 14 days later. The efficiency of the TAT-bound peptides to reach the retina was assessed as well as their cAMP increasing ability. Our present study provides evidence, for the first time, that topically administered PACAP and VIP derivatives (PACAP-TAT and VIP-TAT) attenuate ischemic retinal degeneration via the PAC1 receptor presumably due to a multifactorial protective mechanism.
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Affiliation(s)
- Tamas Atlasz
- Department of Anatomy, Medical School, MTA-PTE PACAP Research Group, University of Pecs, Pecs, Hungary.
- Department of Sportbiology, University of Pecs, Pecs, Hungary.
- Janos Szentagothai Research Center, University of Pecs, Pecs, Hungary.
| | - D Werling
- Department of Anatomy, Medical School, MTA-PTE PACAP Research Group, University of Pecs, Pecs, Hungary
| | - S Song
- Institute of Biomedicine, Jinan University, Guangzhou, China
| | - E Szabo
- Department of Anatomy, Medical School, MTA-PTE PACAP Research Group, University of Pecs, Pecs, Hungary
| | - A Vaczy
- Department of Anatomy, Medical School, MTA-PTE PACAP Research Group, University of Pecs, Pecs, Hungary
| | - P Kovari
- Department of Anatomy, Medical School, MTA-PTE PACAP Research Group, University of Pecs, Pecs, Hungary
| | - A Tamas
- Department of Anatomy, Medical School, MTA-PTE PACAP Research Group, University of Pecs, Pecs, Hungary
| | - D Reglodi
- Department of Anatomy, Medical School, MTA-PTE PACAP Research Group, University of Pecs, Pecs, Hungary
| | - Rongjie Yu
- Institute of Biomedicine, Jinan University, Guangzhou, China.
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9
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Nakamachi T, Tanigawa A, Konno N, Shioda S, Matsuda K. Expression Patterns of PACAP and PAC1R Genes and Anorexigenic Action of PACAP1 and PACAP2 in Zebrafish. Front Endocrinol (Lausanne) 2019; 10:227. [PMID: 31031705 PMCID: PMC6473066 DOI: 10.3389/fendo.2019.00227] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 03/21/2019] [Indexed: 11/13/2022] Open
Abstract
Pituitary adenylate cyclase-activating polypeptide (PACAP) is a neuropeptide with potent suppressive effects on feeding behavior in rodents, chicken, and goldfish. Teleost fish express two PACAPs (PACAP1, encoded by the adcyap1a gene, and PACAP2, encoded by the adcyap1b gene) and two PACAP receptors (PAC1Rs; PAC1Ra, encoded by the adcyap1r1a gene, and PAC1Rb, encoded by the adcyap1r1b gene). However, the mRNA expression patterns of the two PACAPs and PAC1Rs, and the influence and relationship of the two PACAPs on feeding behavior in teleost fish remains unclear. Therefore, we first examined mRNA expression patterns of PACAP and PAC1R in tissue and brain. All PACAP and PAC1Rs mRNAs were dominantly expressed in the zebrafish brain. However, adcyap1a mRNA was also detected in the gut and testis. In the brain, adcyap1b and adcyap1r1a mRNA levels were greater than that of adcyap1a and adcyap1r1b, respectively. Moreover, adcyap1b and adcyap1r1a mRNA were dominantly expressed in telencephalon and diencephalon. The highest adcyap1a mRNA levels were detected in the brain stem and diencephalon, while the highest levels of adcyap1r1b were detected in the cerebellum. To clarify the relationship between PACAP and feeding behavior in the zebrafish, the effects of zebrafish (zf) PACAP1 or zfPACAP2 intracerebroventricular (ICV) injection were examined on food intake, and changes in PACAP mRNA levels were assessed against feeding status. Food intake was significantly decreased by ICV injection of zfPACAP1 (2 pmol/g body weight), zfPACAP2 (2 or 20 pmol/g body weight), or mammalian PACAP (2 or 20 pmol/g). Meanwhile, the PACAP injection group did not change locomotor activity. Real-time PCR showed adcyap1 mRNA levels were significantly increased at 2 and 3 h after feeding compared with the pre-feeding level, but adcyap1b, adcyap1r1a, and adcyap1r1b mRNA levels did not change after feeding. These results suggest that the expression levels and distribution of duplicated PACAP and PAC1R genes are different in zebrafish, but the anorexigenic effects of PACAP are similar to those seen in other vertebrates.
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Affiliation(s)
- Tomoya Nakamachi
- Laboratory of Regulatory Biology, Graduate School of Science and Engineering, University of Toyama, Toyama, Japan
- *Correspondence: Tomoya Nakamachi
| | - Ayano Tanigawa
- Laboratory of Regulatory Biology, Graduate School of Science and Engineering, University of Toyama, Toyama, Japan
| | - Norifumi Konno
- Laboratory of Regulatory Biology, Graduate School of Science and Engineering, University of Toyama, Toyama, Japan
| | - Seiji Shioda
- Innovative Drug Discovery, Global Research Center for Innovative Life Science, Hoshi University, Tokyo, Japan
| | - Kouhei Matsuda
- Laboratory of Regulatory Biology, Graduate School of Science and Engineering, University of Toyama, Toyama, Japan
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Atlasz T, Werling D, Song S, Szabo E, Vaczy A, Kovari P, Tamas A, Reglodi D, Yu R. Retinoprotective Effects of TAT-Bound Vasoactive Intestinal Peptide and Pituitary Adenylate Cyclase Activating Polypeptide. J Mol Neurosci 2018; 68:397-407. [PMID: 30542799 PMCID: PMC6581923 DOI: 10.1007/s12031-018-1229-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 11/21/2018] [Indexed: 12/19/2022]
Abstract
Vasoactive intestinal peptide (VIP) and pituitary adenylate cyclase activating polypeptide (PACAP) belong to the same peptide family and exert a variety of biological functions. Both PACAP and VIP have protective effects in several tissues. While PACAP is known to be a stronger retinoprotective peptide, VIP has very potent anti-inflammatory effects. The need for a non-invasive therapeutic approach has emerged and PACAP has been shown to be retinoprotective when administered in the form of eye drops as well. The cell penetrating peptide TAT is composed of 11 amino acids and tagging of TAT at the C-terminus of neuropeptides PACAP/VIP can enhance the traversing ability of the peptides through the biological barriers. We hypothesized that TAT-bound PACAP and VIP could be more effective in exerting retinoprotective effects when given in eye drops, by increasing the traversing efficacy and enhancing the activation of the PAC1 receptor. Rats were subjected to bilateral carotid artery occlusion (BCCAO), and retinas were processed for histological analysis 14 days later. The efficiency of the TAT-bound peptides to reach the retina was assessed as well as their cAMP increasing ability. Our present study provides evidence, for the first time, that topically administered PACAP and VIP derivatives (PACAP-TAT and VIP-TAT) attenuate ischemic retinal degeneration via the PAC1 receptor presumably due to a multifactorial protective mechanism.
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Affiliation(s)
- Tamas Atlasz
- Department of Anatomy, Medical School, MTA-PTE PACAP Research Group, University of Pecs, Pecs, Hungary. .,Department of Sportbiology, University of Pecs, Pecs, Hungary. .,Janos Szentagothai Research Center, University of Pecs, Pecs, Hungary.
| | - D Werling
- Department of Anatomy, Medical School, MTA-PTE PACAP Research Group, University of Pecs, Pecs, Hungary
| | - S Song
- Institute of Biomedicine, Jinan University, Guangzhou, China
| | - E Szabo
- Department of Anatomy, Medical School, MTA-PTE PACAP Research Group, University of Pecs, Pecs, Hungary
| | - A Vaczy
- Department of Anatomy, Medical School, MTA-PTE PACAP Research Group, University of Pecs, Pecs, Hungary
| | - P Kovari
- Department of Anatomy, Medical School, MTA-PTE PACAP Research Group, University of Pecs, Pecs, Hungary
| | - A Tamas
- Department of Anatomy, Medical School, MTA-PTE PACAP Research Group, University of Pecs, Pecs, Hungary
| | - D Reglodi
- Department of Anatomy, Medical School, MTA-PTE PACAP Research Group, University of Pecs, Pecs, Hungary
| | - Rongjie Yu
- Institute of Biomedicine, Jinan University, Guangzhou, China.
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11
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Protective Effect of PACAP on Ischemia/Reperfusion-Induced Kidney Injury of Male and Female Rats: Gender Differences. J Mol Neurosci 2018; 68:408-419. [PMID: 30443839 DOI: 10.1007/s12031-018-1207-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 11/08/2018] [Indexed: 02/07/2023]
Abstract
Pituitary adenylate cyclase-activating polypeptide (PACAP) is a neuropeptide that exerts general cytoprotective effects, including protection in different kidney disorders. The aim of our study was to investigate the ischemia/reperfusion-induced kidney injury of male and female rats to confirm the protective effects of PACAP in the kidney and to reveal possible gender differences.Male and female Wistar rats underwent unilateral renal artery clamping followed by 24-h, 48-h, or 14-day reperfusion. PACAP was administered intravenously before arterial clamping in half of the rats. Tubular damage, cytokine expression pattern, oxidative stress marker, antioxidative status and signaling pathways were evaluated using histology, immunohistology, cytokine array, PCR, and Western blot. Tubular damage was significantly less severe in the PACAP-treated male and female rats compared to controls. Results of female animals were significantly better in both treated and untreated groups. Cytokine expression, oxidative stress marker and antioxidative status confirmed the histological results. We also revealed that PACAP counteracted the decreased PKA phosphorylation, influenced the expression of BMP2 and BMP4, and increased the expression of the protein Smad1.We conclude that PACAP is protective in ischemia/reperfusion-induced kidney injury in both sexes, but females had markedly less pronounced injury after ischemia/reperfusion, possibly also involving further protective factors, the investigation of which could have future therapeutic value in treating ischemic kidney injuries.
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12
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Nakamachi T. [Novel tear secretion system - the effect and the mechanism of PACAP on tear secretion]. Nihon Yakurigaku Zasshi 2018; 151:232-238. [PMID: 29887571 DOI: 10.1254/fpj.151.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Dry eye syndrome is defined as a disorder of the tear film caused by either a decreased production in tears or a disruption to the stability of the complex tear film, which causes damage to the ocular surface. It has been developed the medicine for dry eye syndrome focusing anti-inflammation or mucin secretion, however, no treatment has been developed focusing on the effect of elevation of the lacrimal secretion. We recently identified that pituitary adenylate cyclase-activating polypeptide (PACAP)-null mice develop dry eye-like symptoms such as corneal keratinization and tear reduction. PACAP receptor (PAC1-R) immunoreactivity was observed in the acinar cells of the mouse lacrimal gland. PACAP eye drop significantly stimulated tear secretion level, and the effect was suppressed by pretreatment with PAC1-R antagonist or adenylate cyclase inhibitor. PACAP eye drop on the PACAP KO mouse significantly increased the tear secretion, and continuous eye drop suppressed progression of the corneal keratinization. PACAP eye drops increase aquaporin 5 (AQP5) levels in the membrane of acinar cells in lacrimal glands. AQP5 siRNA treatment significantly attenuates PACAP-induced tear secretion. Based on these results, PACAP might be clinically useful to treat dry eye disorder.
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Affiliation(s)
- Tomoya Nakamachi
- Faculty of Science, Graduate School of Science and Engineering, University of Toyama
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13
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Nakamachi T, Kamata E, Tanigawa A, Konno N, Shioda S, Matsuda K. Distribution of pituitary adenylate cyclase-activating polypeptide 2 in zebrafish brain. Peptides 2018. [PMID: 29535004 DOI: 10.1016/j.peptides.2018.03.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Pituitary adenylate cyclase-activating polypeptide (PACAP) is a multipotent neuropeptide with an amino acid sequence that is well conserved among vertebrates. In teleosts, including zebrafish, the PACAP gene (adcyap1) has been duplicated to yield adcyap1a (coding PACAP1) and adcyap1b (coding PACAP2). This study aims to determine the distribution of these PACAPs and their mRNAs in zebrafish. We generated a zebrafish PACAP2-specific antibody. Using real-time PCR, we observed that adcyap1b mRNA was primarily localized in the brain, with the highest level in the telencephalon, followed by the diencephalon. Using immunostaining of brain tissue samples, PACAP2 immunoreactivity was observed mainly in the telencephalon, hypothalamus, and cerebellum, and the immunopositive fibers formed a line to the habenula. PACAP2-immunopositive cells were observed in the ventral and dorsal regions of the telencephalon and in the hypothalamic nucleus of the diencephalon in the colchicine-injected brain. This distribution of PACAP2 suggests its involvement in higher brain functions in teleosts, such as learning and cognition, as well as instinctive behaviors such as feeding and emotional regulation.
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Affiliation(s)
- Tomoya Nakamachi
- Laboratory of Regulatory Biology, Graduate School of Science and Engineering, University of Toyama, 3190-Gofuku, Toyama, Toyama 930-8555, Japan.
| | - Eri Kamata
- Laboratory of Regulatory Biology, Graduate School of Science and Engineering, University of Toyama, 3190-Gofuku, Toyama, Toyama 930-8555, Japan
| | - Ayano Tanigawa
- Laboratory of Regulatory Biology, Graduate School of Science and Engineering, University of Toyama, 3190-Gofuku, Toyama, Toyama 930-8555, Japan
| | - Norifumi Konno
- Laboratory of Regulatory Biology, Graduate School of Science and Engineering, University of Toyama, 3190-Gofuku, Toyama, Toyama 930-8555, Japan
| | - Seiji Shioda
- Innovative Drug Discovery, Global Research Center for Innovative Life Science, Hoshi University, 4-41 Ebara 2-chome, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Kouhei Matsuda
- Laboratory of Regulatory Biology, Graduate School of Science and Engineering, University of Toyama, 3190-Gofuku, Toyama, Toyama 930-8555, Japan
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Hu Y, Converse C, Lyons MC, Hsu WH. Neural control of sweat secretion: a review. Br J Dermatol 2018; 178:1246-1256. [PMID: 28714085 DOI: 10.1111/bjd.15808] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/11/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND Humans have 4 million exocrine sweat glands, which can be classified into two types: eccrine and apocrine glands. Sweat secretion, a constitutive feature, is directly involved in thermoregulation and metabolism, and is regulated by both the central nervous system (CNS) and autonomic nervous system (ANS). OBJECTIVES To explore how sweat secretion is controlled by both the CNS and the ANS and the mechanisms behind the neural control of sweat secretion. METHODS We conducted a literature search on PubMed for reports in English from 1 January 1950 to 31 December 2016. RESULTS AND CONCLUSIONS Acetylcholine acts as a potent stimulator for sweat secretion, which is released by sympathetic nerves. β-adrenoceptors are found in adipocytes as well as apocrine glands, and these receptors may mediate lipid secretion from apocrine glands for sweat secretion. The activation of β-adrenoceptors could increase sweat secretion through opening of Ca2+ channels to elevate intracellular Ca2+ concentration. Ca2+ and cyclic adenosine monophosphate play a part in the secretion of lipids and proteins from apocrine glands for sweat secretion. The translocation of aquaporin 5 plays an important role in sweat secretion from eccrine glands. Dysfunction of the ANS, especially the sympathetic nervous system, may cause sweating disorders, such as hypohidrosis and hyperhidrosis.
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Affiliation(s)
- Y Hu
- Department of Biomedical Sciences, Iowa State University, 1800 S. 16th Street, Ames, IA, 50011-1250, U.S.A
| | - C Converse
- Department of Biomedical Sciences, Iowa State University, 1800 S. 16th Street, Ames, IA, 50011-1250, U.S.A
| | - M C Lyons
- Department of Biomedical Sciences, Iowa State University, 1800 S. 16th Street, Ames, IA, 50011-1250, U.S.A
| | - W H Hsu
- Department of Biomedical Sciences, Iowa State University, 1800 S. 16th Street, Ames, IA, 50011-1250, U.S.A
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Hirabayashi T, Nakamachi T, Shioda S. Discovery of PACAP and its receptors in the brain. J Headache Pain 2018; 19:28. [PMID: 29619773 PMCID: PMC5884755 DOI: 10.1186/s10194-018-0855-1] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 03/21/2018] [Indexed: 11/16/2022] Open
Abstract
Pituitary adenylate-cyclase-activating polypeptide (PACAP) is a 27- or 38-amino acid neuropeptide, which belongs to the vasoactive intestinal polypeptide (VIP)/glucagon/secretin family. PACAP shows particularly high homology (~ 68%) to VIP. Because of the high homology of the amino acid sequences of PACAP and VIP, these peptides share three class B-G-protein coupled receptors: the PAC1-Receptor (PAC1-R), the VPAC1-Receptor (VPAC1-R) and VPAC2-Receptor (VPAC2-R). These receptors have high homology to each other, and their high homology is utilized for these discoveries. This review provides mainly an overview of the history of the discovery of PACAP and its three receptors.
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Affiliation(s)
- Takahiro Hirabayashi
- Peptide Drug Innovation, Global Research Center for Innovative Life Science, Hoshi University, Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Tomoya Nakamachi
- Laboratory of Regulatory Biology, Graduate School of Science and Engineering, University of Toyama, 3190-Gofuku, Toyama-shi, Toyama, 930-8555, Japan
| | - Seiji Shioda
- Peptide Drug Innovation, Global Research Center for Innovative Life Science, Hoshi University, Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan.
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16
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Cui C, Schlessinger D. Neuropeptide
PACAP
promotes sweat secretion. Br J Dermatol 2017; 176:295-296. [DOI: 10.1111/bjd.15162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- C.‐Y. Cui
- Laboratory of Genetics and Genomics National Institute on Aging National Institutes of Health 251 Bayview Blvd, Suite 100 Baltimore MD 21224 U.S.A
| | - D. Schlessinger
- Laboratory of Genetics and Genomics National Institute on Aging National Institutes of Health 251 Bayview Blvd, Suite 100 Baltimore MD 21224 U.S.A
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