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Wang S, Zou Z, Tang Z, Deng J. AMPK/MTOR/TP53 Signaling Pathway Regulation by Calcitonin Gene-Related Peptide Reduces Oxygen-Induced Lung Damage in Neonatal Rats through Autophagy Promotion. Inflammation 2024:10.1007/s10753-023-01963-7. [PMID: 38502251 DOI: 10.1007/s10753-023-01963-7] [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: 09/30/2023] [Revised: 12/10/2023] [Accepted: 12/27/2023] [Indexed: 03/21/2024]
Abstract
Our previous studies indicated that calcitonin gene-related peptide (CGRP) alleviates hyperoxia-induced lung injury and suggested the possible involvement of autophagy in this process. Herein, we aimed to further explore the potential involvement of tumor protein p53 (TP53) and autophagy in the mode of action of CGRP against hyperoxia-induced lung injury in vitro and in vivo. The study conducted tests on type II alveolar epithelial cells (AECII) and rats that were subjected to hyperoxia treatment or combined treatment of hyperoxia with CGRP, CGRP inhibitor, rapamycin (an autophagy agonist), 3-methyladenine (3-MA, an autophagy inhibitor), TP53 silencing/inhibitor (pifithrin-α), or expression vector/activator (PRIMA-1 (2,2-bis(hydroxymethyl)-3-quinuclidinone)) and their corresponding controls. We found that oxidative stress, apoptosis, and autophagy were all increased by hyperoxia treatment in vitro. However, treating AECII cells with CGRP reversed hyperoxia-induced oxidative stress and apoptosis but further promoted autophagy. In addition, the combined treatment with rapamycin or TP53 silencing with CGRP promoted the effect of CGRP, while contrary results were obtained with combined therapy with 3-MA or TP53 overexpression. In vivo, the number of hyperoxia-induced autophagosomes was promoted in the lung tissue of neonatal rats. Furthermore, hyperoxia increased the expression levels of AMP-activated protein kinase (AMPK) alpha 1 (also known as protein kinase AMP-activated catalytic subunit alpha 1 (PRKAA1)) but inhibited TP53 and mechanistic target of rapamycin (MTOR); these expression trends were regulated by CGRP treatment. In conclusion, we showed that CGRP can attenuate hyperoxia-induced lung injury in neonatal rats by enhancing autophagy and regulating the TP53/AMPK/MTOR crosstalk axis.
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Affiliation(s)
- Shaohua Wang
- Neonatal Intensive Care Unit, Women and Children Health Institute of Futian, Jintian South Road No. 2002, Futian District, Shenzhen, 518045, China.
| | - Zhengzhuang Zou
- Neonatal Intensive Care Unit, Women and Children Health Institute of Futian, Jintian South Road No. 2002, Futian District, Shenzhen, 518045, China
| | - Zanmei Tang
- Neonatal Intensive Care Unit, Women and Children Health Institute of Futian, Jintian South Road No. 2002, Futian District, Shenzhen, 518045, China
| | - Jian Deng
- Neonatal Intensive Care Unit, Women and Children Health Institute of Futian, Jintian South Road No. 2002, Futian District, Shenzhen, 518045, China
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Guo Y, Schon L, Paudel S, Feltham T, Manandhar L, Zhang Z. Increased synovial expression of calcitonin gene-related peptide and its potential roles in Charcot Neuroarthropathy. Exp Mol Pathol 2022; 128:104835. [PMID: 36195300 DOI: 10.1016/j.yexmp.2022.104835] [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: 03/09/2022] [Revised: 09/19/2022] [Accepted: 09/28/2022] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Joint destruction in Charcot neuroarthropathy (CNA) is accompanied with abundant hyperplastic synovium. This study aimed to characterize the expression patterns of a group of neuropeptides in the CNA synovium. METHODS Synovial specimens were collected during surgery from the CNA (n = 6) and non-CNA joints (n = 14). Tissue samples were processed for protein extraction and western blot for vasoactive intestinal peptide (VIP), galanin, and calcitonin gene-related peptide (CGRP). Immunohistochemistry was performed to localize CGRP in the CNA synovium. Additionally, CGRP was applied to fibroblast-like synoviocytes (FLS) isolated from CNA synovium for its effects on cell proliferation and collagenolysis in vitro. RESULTS Western blot detected light bands of VIP in the CNA samples but abundant galanin in both CNA and non-CNA samples. Most of the CNA samples (5/6) increased expression of CGRP, with an average band density about 2 times that in the non-CNA group (p < .05). Immunohistochemistry of CGRP demonstrated intense staining in the intimal layer of the CNA synovium. In tissue culture, adding CGRP (10 nM) in the medium promoted FLS proliferation. In combination with TNF-α, CGRP enhanced FLS-mediated collagenolysis in vitro. CONCLUSION This study revealed an increased expression of CGRP in the CNA synovium and demonstrated that CGRP regulates FLS proliferation and collagenolytic activity, suggesting CGRP may contribute to the bone and cartilage destruction in CNA.
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Affiliation(s)
- Yi Guo
- Department of Orthopaedic Surgery, Montefiore Medical Center, Bronx, NY, USA
| | - Lew Schon
- Institute for Foot and Ankle Reconstruction, Mercy Medical Center, Baltimore, MD, USA; Center for Orthopaedic Innovation, Mercy Medical Center, Baltimore, MD, USA
| | - Sharada Paudel
- Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Tyler Feltham
- Philadelphia College of Osteopathic Medicine-GA, Suwanee, GA, USA
| | | | - Zijun Zhang
- Center for Orthopaedic Innovation, Mercy Medical Center, Baltimore, MD, USA.
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Ho CY, Shanahan CM. Medial Arterial Calcification: An Overlooked Player in Peripheral Arterial Disease. Arterioscler Thromb Vasc Biol 2016; 36:1475-82. [PMID: 27312224 DOI: 10.1161/atvbaha.116.306717] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 05/31/2016] [Indexed: 01/09/2023]
Abstract
Peripheral arterial disease (PAD) is a global health issue that is becoming more prevalent in an aging world population. Diabetes mellitus and chronic kidney disease are also on the increase, and both are associated with accelerated vascular calcification and an unfavorable prognosis in PAD. These data challenge the traditional athero-centric view of PAD, instead pointing toward a disease process complicated by medial arterial calcification. Like atherosclerosis, aging is a potent risk factor for medial arterial calcification, and accelerated vascular aging may underpin the devastating manifestations of PAD, particularly in patients prone to calcification. Consequently, this review will attempt to dissect the relationship between medial arterial calcification and atherosclerosis in PAD and identify common as well as novel risk factors that may contribute to and accelerate progression of PAD. In this context, we focus on the complex interplay between oxidative stress, DNA damage, and vascular aging, as well as the unexplored role of neuropathy.
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Affiliation(s)
- Chin Yee Ho
- From the King's College London, British Heart Foundation Centre of Research Excellence, Cardiovascular Division, King's College London, London, UK
| | - Catherine M Shanahan
- From the King's College London, British Heart Foundation Centre of Research Excellence, Cardiovascular Division, King's College London, London, UK.
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Hachani R, DAB H, Sakly M, Vicaut E, Callebert J, Sercombe R, Kacem K. Influence of antagonist sensory and sympathetic nerves on smooth muscle cell differentiation in hypercholesterolemic rat. Auton Neurosci 2010; 155:82-90. [DOI: 10.1016/j.autneu.2010.02.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2009] [Revised: 01/31/2010] [Accepted: 02/01/2010] [Indexed: 11/29/2022]
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Porzionato A, Macchi V, Parenti A, De Caro R. Trophic factors in the carotid body. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2008; 269:1-58. [PMID: 18779056 DOI: 10.1016/s1937-6448(08)01001-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The aim of the present study is to provide a review of the expression and action of trophic factors in the carotid body. In glomic type I cells, the following factors have been identified: brain-derived neurotrophic factor, glial cell line-derived neurotrophic factor, artemin, ciliary neurotrophic factor, insulin-like growth factors-I and -II, basic fibroblast growth factor, epidermal growth factor, transforming growth factor-alpha and -beta1, interleukin-1beta and -6, tumour necrosis factor-alpha, vascular endothelial growth factor, and endothelin-1 (ET-1). Growth factor receptors in the above cells include p75LNGFR, TrkA, TrkB, RET, GDNF family receptors alpha1-3, gp130, IL-6Ralpha, EGFR, FGFR1, IL1-RI, TNF-RI, VEGFR-1 and -2, ETA and ETB receptors, and PDGFR-alpha. Differential local expression of growth factors and corresponding receptors plays a role in pre- and postnatal development of the carotid body. Their local actions contribute toward producing the morphologic and molecular changes associated with chronic hypoxia and/or hypertension, such as cellular hyperplasia, extracellular matrix expansion, changes in channel densities, and neurotransmitter patterns. Neurotrophic factor production is also considered to play a key role in the therapeutic effects of intracerebral carotid body grafts in Parkinson's disease. Future research should also focus on trophic actions on carotid body type I cells by peptide neuromodulators, which are known to be present in the carotid body and to show trophic effects on other cell populations, that is, angiotensin II, adrenomedullin, bombesin, calcitonin, calcitonin gene-related peptide, cholecystokinin, erythropoietin, galanin, opioids, pituitary adenylate cyclase-activating polypeptide, atrial natriuretic peptide, somatostatin, tachykinins, neuropeptide Y, neurotensin, and vasoactive intestinal peptide.
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Affiliation(s)
- Andrea Porzionato
- Department of Human Anatomy and Physiology, University of Padova, Padova 35127, Italy
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Márquez-Rodas I, Longo F, Rothlin RP, Balfagón G. Pathophysiology and therapeutic possibilities of calcitonin gene-related peptide in hypertension. J Physiol Biochem 2006; 62:45-56. [PMID: 16909931 DOI: 10.1007/bf03165805] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Calcitonin gene related peptide (CGRP), a 37 amino acid neuropeptide, is the most potent vasodilator known. Participation of CGRP in hypertension and related diseases, such as preeclampsia or vasospasm after subarachnoid haemorrage, is one of the most studied topics. In this review we summarize the published roles of CGRP in pathophysiology of hypertension in humans and in experimental models. We also discuss the effects of direct administration of CGRP in the treatment of hypertension and of anti-hypertensive drugs that enhance the release or response of endogenous calcitonin gene-related peptide: angiotensin converting enzyme inhibitors, selective antagonists for the angiotensin II receptor, beta-blockers, magnesium sulphate for preeclampsia and rutaecarpine, as well as the possibilities using CGRP in gene therapy for prevention of vasospasm after subarachnoid haemorrage.
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Affiliation(s)
- I Márquez-Rodas
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, C/ Arzobispo Morcillo 4, 28029 Madrid, Spain. and 1II1 Citedra de Farmacologfa, Facultad de Medicina, Universidad de Buenos Aires
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Schaeffer C, Thomassin L, Rochette L, Connat JL. Apoptosis Induced in Vascular Smooth Muscle Cells by Oxidative Stress Is Partly Prevented by Pretreatment with CGRP. Ann N Y Acad Sci 2006; 1010:733-7. [PMID: 15033819 DOI: 10.1196/annals.1299.132] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- C Schaeffer
- Université de Bourgogne, Biologie Animale Cellulaire et Moléculaire, LPPCE, IFR Santé 100, 21000 Dijon, France
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Thiévent A, Sena S, Parlakian A, Breuzard G, Beley A, Rochette L, Connat JL. Potential role of the neuropeptide CGRP in the induction of differentiation of rat hepatic portal vein wall. Peptides 2005; 26:1567-72. [PMID: 16112394 DOI: 10.1016/j.peptides.2005.02.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2004] [Revised: 02/16/2005] [Accepted: 02/16/2005] [Indexed: 10/25/2022]
Abstract
The media of the rat hepatic portal vein is composed of an internal circular muscular layer (CL) and an external longitudinal muscular layer (LL). These two perpendicular layers differentiate progressively from mesenchymal cells within the first month after birth. In this paper, we studied the development of calcitonin gene-related peptide (CGRP) innervation during post-natal differentiation of the vessel. We show that CGRP innervation is already present around the vessel at birth in the future adventitia but far from the lumen of the vessel. Progressively, CGRP immunoreactive fibers reached first LL then CL. CL by itself become only innervated at day 14 after birth. This corresponds to the time at which thick filaments (myosin) are visible in electron microscopy and desmin visualisable by immunocytochemistry. Furthermore, we provide evidence by autoradiography, that binding sites for CGRP are transiently expressed on the portal vein media at day 1 and 14 after birth. Vascular smooth muscle cells were transfected with constructs containing promoters for desmin or smooth muscle myosin heavy chain (smMHC). CGRP treatment of the cells significantly increased the expression of smMHC. Overall these results suggest that CGRP can potentially influence the differentiation of smooth muscle cells from the vessel wall.
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Affiliation(s)
- A Thiévent
- Université de Bourgogne, Biologie Animale Cellulaire et Moléculaire, LPPCE, IFR 100, 6 Bvd. Gabriel, 21000 Dijon, France
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Abstract
OBJECTIVE To determine the role of endogenous calcitonin gene-related peptide (CGRP) and its receptor in development of angiotensin II (Ang II)-induced hypertension. DESIGN AND METHODS Seven-week-old male Wistar rats were given either Ang II (100 ng/kg per min) or saline via mini osmotic pumps with or without minoxidil (9 mg/kg per day) in their drinking water for 10 days. Mean arterial pressure (MAP) and its response to alpha-CGRP (1 microg/kg, iv) and its receptor antagonist, CGRP(8-37) (1 mg/kg, iv), were determined in conscious and unrestrained rats. Radioimmunoassay and Western blotting were employed, respectively, to determine CGRP levels in plasma and dorsal root ganglia (DRG) and CGRP receptor protein content in mesenteric arteries. RESULTS After the 10-day treatment, MAP was higher in the Ang II group compared to control (Con), control plus minoxidil (Con-Min), and Ang II plus minoxidil (Ang II-Min) (P < 0.01). CGRP decreased MAP in the Ang II group compared to Con, Con-Min and Ang II-Min rats (P < 0.01). In contrast, CGRP8-37 increased MAP in Con-Min and Ang II-Min groups compared with Con and Ang II groups (P < 0.01). Radioimmunoassay showed that CGRP levels in plasma and DRG were not different among the four groups. Western blots showed that calcitonin receptor-like receptor (CRLR) and receptor activity-modifying protein 1 (RAMP1), which constitute a CGRP receptor, were significantly upregulated in mesenteric arteries in the Ang II group compared to the other three groups (P < 0.05). CONCLUSION These data indicate that long-term Ang II infusion is accompanied by an increase in CGRP receptor expression in mesenteric arteries but not in CGRP levels in plasma and DRG. The increase in mesenteric CGRP receptor expression appears to be pressure dependent and to enhance the blood pressure response to CGRP. Minoxidil enhances the hypertensive effect of CGRP8-37 to the same degree in control and Ang II-treated rats, indicating that this KATP channel activator sensitizes the blood pressure response regardless of the baseline pressure while CGRP receptors are blocked.
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Affiliation(s)
- Jianping Li
- Department of Medicine and Pharmacology and Toxicology, Michigan State University, East Lansing, Michigan 48824, USA
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Schaeffer C, Vandroux D, Thomassin L, Athias P, Rochette L, Connat JL. Calcitonin gene-related peptide partly protects cultured smooth muscle cells from apoptosis induced by an oxidative stress via activation of ERK1/2 MAPK. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2004; 1643:65-73. [PMID: 14654229 DOI: 10.1016/j.bbamcr.2003.09.005] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Oxidative stress induced by a glucose/glucose oxidase (G/GO) generator system dose-dependently decreased the viability of cultured vascular smooth muscle cells (VSMC) as estimated by MTT assay. Cell death was induced in 40% of cells exposed to 0.2 IU/ml of the free radical generating mixture. Annexin-V labeling, Hoechst staining together with DNA laddering demonstrated that apoptosis was responsible for this cell loss. Pretreatment of the cells with 10(-8) M calcitonin gene-related peptide (CGRP) significantly attenuated the damaging effect of the oxidative stress. Indeed, cell viability was estimated to be 80% in CGRP-treated group, instead of 60% in absence of CGRP treatment. This protective effect of CGRP was antagonized by 8-37 CGRP, an antagonist of CGRP-1 receptors, whereas it was not reproduced by amylin, a CGRP analogue. As indicated by the reduction in Hoechst staining and in DNA laddering, CGRP prevented the onset of apoptosis. We also demonstrated that the peptide significantly up-regulated the activation of ERK1/2 and P38 kinases. Inhibitors of the kinases prevented the protective effect of CGRP. We conclude that CGRP antagonizes oxidative stress-induced apoptosis by up-regulating MAP kinase activation and that activation of these kinases was necessary to protection.
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Affiliation(s)
- C Schaeffer
- Faculté des Sciences Gabriel, Laboratoire de Physiopathologie et Pharmacologie Cardiovasculaires Expérimentales, Biologie Animale Cellulaire et Moléculaire, Université de Bourgogne, IFR Santé 100, 21000, Dijon, France.
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Montuenga LM, Guembe L, Burrell MA, Bodegas ME, Calvo A, Sola JJ, Sesma P, Villaro AC. The diffuse endocrine system: from embryogenesis to carcinogenesis. PROGRESS IN HISTOCHEMISTRY AND CYTOCHEMISTRY 2003; 38:155-272. [PMID: 12756892 DOI: 10.1016/s0079-6336(03)80004-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
In the present review we will summarise the current knowledge about the cells comprising the Diffuse Endocrine System (DES) in mammalian organs. We will describe the morphological, histochemical and functional traits of these cells in three major systems gastrointestinal, respiratory and prostatic. We will also focus on some aspects of their ontogeny and differentiation, as well as to their relevance in carcinogenesis, especially in neuroendocrine tumors. The first chapter describes the characteristics of DES cells and some of their specific biological and biochemical traits. The second chapter deals with DES in the gastrointestinal organs, with special reference to the new data on the differentiation mechanisms that leads to the appearance of endocrine cells from an undifferentiated stem cell. The third chapter is devoted to DES of the respiratory system and some aspects of its biological role, both, during development and adulthood. Neuroendocrine hyperplasia and neuroendocrine lung tumors are also addressed. Finally, the last chapter deals with the prostatic DES, discussing its probable functional role and its relevance in hormone-resistant prostatic carcinomas.
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Affiliation(s)
- Luis M Montuenga
- Department of Histology and Pathology, Schools of Science and Medicine, University of Navarra, 31080 Pamplona, Spain.
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