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Yang Q, Liu C, Qi K, Xiong Y, Pan Y, Tian C. Imaging and quantification of neuropeptides in mouse pituitary tissue by atmospheric pressure matrix-assisted laser desorption/ionization mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2024; 38:e9755. [PMID: 38600731 DOI: 10.1002/rcm.9755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/21/2024] [Accepted: 03/21/2024] [Indexed: 04/12/2024]
Abstract
RATIONALE Atmospheric pressure matrix-assisted laser desorption/ionization (AP-MALDI) mass spectrometry has enabled the untargeted analysis and imaging of neuropeptides and proteins in biological tissues under ambient conditions. Sensitivity in AP-MALDI can be improved by using sample-specific preparation methods. METHODS A comprehensive and detailed optimization strategy including instrument parameters, matrix spraying and sample tissue washing pretreatment was implemented to enhance the sensitivity and coverage of neuropeptides in mouse pituitary tissues by commercial AP-MALDI mass spectrometry imaging (MSI). RESULTS The sensitivity of a commercial AP-MALDI system for endogenous neuropeptides in mouse pituitary was enhanced by up to 15.2-fold by shortening the transmission gap from the sample plate to the inlet, attaching copper adhesive tape to an indium tin oxide-coated glass slide, optimizing the matrix spray solvent and using sample tissue washing pretreatment. Following careful optimization, the distributions of nine endogenous neuropeptides were successfully visualized in the pituitary. Furthermore, the quantitative capability of AP-MALDI for neuropeptides was evaluated and the concentrations of neuropeptides oxytocin and vasopressin in the pituitary posterior lobe were increased approximately twofold under hypertonic saline stress. CONCLUSION Mouse pituitary neuropeptides have emerged as important signaling molecules due to their role in stress response. This work indicates the potential of modified AP-MALDI as a promising AP MSI method for in situ visualization and quantification of neuropeptides in complex biological tissues.
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Affiliation(s)
- Qi Yang
- Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Chengyuan Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, China
| | - Keke Qi
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, China
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, China
| | - Ying Xiong
- Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yang Pan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, China
| | - Changlin Tian
- Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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László K, Vörös D, Correia P, Fazekas CL, Török B, Plangár I, Zelena D. Vasopressin as Possible Treatment Option in Autism Spectrum Disorder. Biomedicines 2023; 11:2603. [PMID: 37892977 PMCID: PMC10603886 DOI: 10.3390/biomedicines11102603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/13/2023] [Accepted: 09/21/2023] [Indexed: 10/29/2023] Open
Abstract
Autism spectrum disorder (ASD) is rather common, presenting with prevalent early problems in social communication and accompanied by repetitive behavior. As vasopressin was implicated not only in salt-water homeostasis and stress-axis regulation, but also in social behavior, its role in the development of ASD might be suggested. In this review, we summarized a wide range of problems associated with ASD to which vasopressin might contribute, from social skills to communication, motor function problems, autonomous nervous system alterations as well as sleep disturbances, and altered sensory information processing. Beside functional connections between vasopressin and ASD, we draw attention to the anatomical background, highlighting several brain areas, including the paraventricular nucleus of the hypothalamus, medial preoptic area, lateral septum, bed nucleus of stria terminalis, amygdala, hippocampus, olfactory bulb and even the cerebellum, either producing vasopressin or containing vasopressinergic receptors (presumably V1a). Sex differences in the vasopressinergic system might underline the male prevalence of ASD. Moreover, vasopressin might contribute to the effectiveness of available off-label therapies as well as serve as a possible target for intervention. In this sense, vasopressin, but paradoxically also V1a receptor antagonist, were found to be effective in some clinical trials. We concluded that although vasopressin might be an effective candidate for ASD treatment, we might assume that only a subgroup (e.g., with stress-axis disturbances), a certain sex (most probably males) and a certain brain area (targeting by means of virus vectors) would benefit from this therapy.
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Affiliation(s)
- Kristóf László
- Institute of Physiology, Medical School, University of Pécs, 7624 Pecs, Hungary; (K.L.); (D.V.); (P.C.); (C.L.F.); (B.T.); (I.P.)
- Center of Neuroscience, University of Pécs, 7624 Pecs, Hungary
- Szentágothai Research Center, University of Pécs, 7624 Pecs, Hungary
| | - Dávid Vörös
- Institute of Physiology, Medical School, University of Pécs, 7624 Pecs, Hungary; (K.L.); (D.V.); (P.C.); (C.L.F.); (B.T.); (I.P.)
- Center of Neuroscience, University of Pécs, 7624 Pecs, Hungary
- Szentágothai Research Center, University of Pécs, 7624 Pecs, Hungary
| | - Pedro Correia
- Institute of Physiology, Medical School, University of Pécs, 7624 Pecs, Hungary; (K.L.); (D.V.); (P.C.); (C.L.F.); (B.T.); (I.P.)
- Center of Neuroscience, University of Pécs, 7624 Pecs, Hungary
- Szentágothai Research Center, University of Pécs, 7624 Pecs, Hungary
- Hungarian Research Network, Institute of Experimental Medicine, 1083 Budapest, Hungary
| | - Csilla Lea Fazekas
- Institute of Physiology, Medical School, University of Pécs, 7624 Pecs, Hungary; (K.L.); (D.V.); (P.C.); (C.L.F.); (B.T.); (I.P.)
- Center of Neuroscience, University of Pécs, 7624 Pecs, Hungary
- Szentágothai Research Center, University of Pécs, 7624 Pecs, Hungary
- Hungarian Research Network, Institute of Experimental Medicine, 1083 Budapest, Hungary
| | - Bibiána Török
- Institute of Physiology, Medical School, University of Pécs, 7624 Pecs, Hungary; (K.L.); (D.V.); (P.C.); (C.L.F.); (B.T.); (I.P.)
- Center of Neuroscience, University of Pécs, 7624 Pecs, Hungary
- Szentágothai Research Center, University of Pécs, 7624 Pecs, Hungary
- Hungarian Research Network, Institute of Experimental Medicine, 1083 Budapest, Hungary
| | - Imola Plangár
- Institute of Physiology, Medical School, University of Pécs, 7624 Pecs, Hungary; (K.L.); (D.V.); (P.C.); (C.L.F.); (B.T.); (I.P.)
- Center of Neuroscience, University of Pécs, 7624 Pecs, Hungary
- Szentágothai Research Center, University of Pécs, 7624 Pecs, Hungary
| | - Dóra Zelena
- Institute of Physiology, Medical School, University of Pécs, 7624 Pecs, Hungary; (K.L.); (D.V.); (P.C.); (C.L.F.); (B.T.); (I.P.)
- Center of Neuroscience, University of Pécs, 7624 Pecs, Hungary
- Szentágothai Research Center, University of Pécs, 7624 Pecs, Hungary
- Hungarian Research Network, Institute of Experimental Medicine, 1083 Budapest, Hungary
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Szczepanska-Sadowska E, Wsol A, Cudnoch-Jedrzejewska A, Czarzasta K, Żera T. Multiple Aspects of Inappropriate Action of Renin-Angiotensin, Vasopressin, and Oxytocin Systems in Neuropsychiatric and Neurodegenerative Diseases. J Clin Med 2022; 11:908. [PMID: 35207180 PMCID: PMC8877782 DOI: 10.3390/jcm11040908] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/04/2022] [Accepted: 02/05/2022] [Indexed: 02/04/2023] Open
Abstract
The cardiovascular system and the central nervous system (CNS) closely cooperate in the regulation of primary vital functions. The autonomic nervous system and several compounds known as cardiovascular factors, especially those targeting the renin-angiotensin system (RAS), the vasopressin system (VPS), and the oxytocin system (OTS), are also efficient modulators of several other processes in the CNS. The components of the RAS, VPS, and OTS, regulating pain, emotions, learning, memory, and other cognitive processes, are present in the neurons, glial cells, and blood vessels of the CNS. Increasing evidence shows that the combined function of the RAS, VPS, and OTS is altered in neuropsychiatric/neurodegenerative diseases, and in particular in patients with depression, Alzheimer's disease, Parkinson's disease, autism, and schizophrenia. The altered function of the RAS may also contribute to CNS disorders in COVID-19. In this review, we present evidence that there are multiple causes for altered combined function of the RAS, VPS, and OTS in psychiatric and neurodegenerative disorders, such as genetic predispositions and the engagement of the RAS, VAS, and OTS in the processes underlying emotions, memory, and cognition. The neuroactive pharmaceuticals interfering with the synthesis or the action of angiotensins, vasopressin, and oxytocin can improve or worsen the effectiveness of treatment for neuropsychiatric/neurodegenerative diseases. Better knowledge of the multiple actions of the RAS, VPS, and OTS may facilitate programming the most efficient treatment for patients suffering from the comorbidity of neuropsychiatric/neurodegenerative and cardiovascular diseases.
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Affiliation(s)
- Ewa Szczepanska-Sadowska
- Department of Experimental and Clinical Physiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, 02-097 Warsaw, Poland; (A.W.); (A.C.-J.); (K.C.); (T.Ż.)
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Köves K, Kausz M, Reser D, Horváth K. What may be the anatomical basis that secretin can improve the mental functions in autism? REGULATORY PEPTIDES 2002; 109:167-72. [PMID: 12409229 DOI: 10.1016/s0167-0115(02)00200-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Autism was first described and characterized as a behavioral disorder more than 50 years ago. The major abnormality in the central nervous system is a cerebellar atrophy. The characteristic histological sign is a striking loss or abnormal development in the Purkinje cell count. Abnormalities were also found in the limbic system, in the parietal and frontal cortex, and in the brain stem. The relation between secretin and autism was observed 3 years ago. Clinical observations by Horváth et al. [J. Assoc. Acad. Minor. Physicians 9 (1998) 9] supposed a defect in the role of secretin and its receptors in autism. The aim of the present work was to study the precise localization of secretin immunoreactivity in the nervous system using an immunohistochemical approach. No secretin immunoreactivity was observed in the forebrain structures. In the brain stem, secretin immunoreactivity was observed in the mesencephalic nucleus of the trigeminal nerve, in the superior olivary nucleus, and in scattered cells of the reticular formation. The most intensive secretin immunoreactivity was observed in the Purkinje cells of the whole cerebellum and in some of the neurons of the central cerebellar nuclei. Secretin immunoreactivity was also observed in a subpopulation of neurons in the primary sensory ganglia. This work is the first immunohistochemical demonstration of secretin-immunoreactive elements in the brain stem and in primary sensory ganglia.
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Affiliation(s)
- K Köves
- Department of Human Morphology and Developmental Biology, Faculty of Medicine, Semmelweis University, Tüzoltó u. 58., H-1094 Budapest, Hungary.
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