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Khalifeh DM, Czeglédi L, Gulyas G. Investigating the potential role of the pituitary adenylate cyclase-activating polypeptide (PACAP) in regulating the ubiquitin signaling pathway in poultry. Gen Comp Endocrinol 2024; 356:114577. [PMID: 38914296 DOI: 10.1016/j.ygcen.2024.114577] [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: 04/10/2024] [Revised: 06/13/2024] [Accepted: 06/20/2024] [Indexed: 06/26/2024]
Abstract
The physiological processes in animal production are regulated through biologically active molecules like peptides, proteins, and hormones identified through the development of the fundamental sciences and their application. One of the main polypeptides that plays an essential role in regulating physiological responses is the pituitary adenylate cyclase-activating polypeptide (PACAP). PACAP belongs to the glucagon/growth hormone-releasing hormone (GHRH)/vasoactive intestinal proteins (VIP) family and regulates feed intake, stress, and immune response in birds. Most of these regulations occur after PACAP stimulates the cAMP signaling pathway, which can regulate the expression of genes like MuRF1, FOXO1, Atrogin 1, and other ligases that are essential members of the ubiquitin system. On the other hand, PACAP stimulates the secretion of CRH in response to stress, activating the ubiquitin signaling pathway that plays a vital role in protein degradation and regulates oxidative stress and immune responses. Many studies conducted on rodents, mammals, and other models confirm the regulatory effects of PACAP, cAMP, and the ubiquitin pathway; however, there are no studies testing whether PACAP-induced cAMP signaling in poultry regulates the ubiquitin pathway. Besides, it would be interesting to investigate if PACAP can regulate ubiquitin signaling during stress response via CRH altered by HPA axis stimulation. Therefore, this review highlights a summary of research studies that indicate the potential interaction of the PACAP and ubiquitin signaling pathways on different molecular and physiological parameters in poultry species through the cAMP and stress signaling pathways.
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Affiliation(s)
- Doha Mohamad Khalifeh
- Department of Animal Science, Institute of Animal Science, Biotechnology and Nature Conservation, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Böszörményi Street 138, Debrecen 4032 Hungary; Doctoral School of Animal Science, University of Debrecen, Böszörményi Street 138, 4032, Debrecen, Hungary.
| | - Levente Czeglédi
- Department of Animal Science, Institute of Animal Science, Biotechnology and Nature Conservation, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Böszörményi Street 138, Debrecen 4032 Hungary
| | - Gabriella Gulyas
- Department of Animal Science, Institute of Animal Science, Biotechnology and Nature Conservation, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Böszörményi Street 138, Debrecen 4032 Hungary
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Chen X, Zhang R, Zhang Q, Xu Z, Xu F, Li D, Li Y. Magnetically Controlled 3D Cartilage Regeneration. Cartilage 2024; 15:293-302. [PMID: 37401776 PMCID: PMC11418502 DOI: 10.1177/19476035231183254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 05/02/2023] [Accepted: 06/02/2023] [Indexed: 07/05/2023] Open
Abstract
OBJECTIVE The cartilage regeneration field has not yet overcome the issue of effective "shaping": growing regenerated cartilage in the desired shape, and maintaining that shape, is problematic. This study reports on a new method of cartilage regeneration in which the cartilage is shaped in three dimensions. Since cartilage is composed only of cartilage cells and an abundant extracellular matrix with no blood circulation, once it is damaged, the lack of nutrient supply means that it is difficult to repair. Scaffold-free cell sheet technology plays an important role in cartilage regeneration, avoiding inflammation and immune response caused by scaffold materials. However, cartilage regenerated from the cell sheet needs to be sculpted and shaped before it can be used for cartilage defect transplantation. DESIGN In this study, we used a new ultra-strong magnetic-responsive Fe3O4 nanoparticle (MNP) to shape the cartilage in vitro. Super-magnetic Fe3O4 microspheres are manufactured by co-assembling negatively charged Cetyltrimethylammonium bromide (CTAB) and positively charged Fe3+ under solvothermal conditions. RESULTS The Fe3O4 MNPs are swallowed by chondrocytes, and the MNP-labeled chondrocytes are acted upon by the magnetic field. The predetermined magnetic force makes the tissues coalesce to form a multilayer cell sheet with a predetermined shape. The shaped cartilage tissue is regenerated in the transplanted body, and the nano magnetic control particles do not affect cell viability. The nanoparticles in this study improve the efficiency of cell interaction through super-magnetic modification, and to a certain extent change the way the cells absorb magnetic iron nanoparticles. This phenomenon allows a more orderly and compact alignment of the cartilage cell extracellular matrix, promotes ECM precipitation and cartilage tissue maturation, and improves the efficiency of cartilage regeneration. CONCLUSION The magnetic bionic structure, which contains specific magnetic particle-labeled cells, is deposited layer by layer to generate a three-dimensional structure with repair function, and further induce the production of cartilage. This study describes a new method for the regeneration of tissue engineered cartilage which has broad application prospects in regenerative medicine.
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Affiliation(s)
- Xia Chen
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ruhong Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qun Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhicheng Xu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Feng Xu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Datao Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yiyuan Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Fu L, Duan H, Cai Y, Chen X, Zou B, Yuan L, Liu G. Moxibustion ameliorates osteoarthritis by regulating gut microbiota via impacting cAMP-related signaling pathway. Biomed Pharmacother 2024; 170:116031. [PMID: 38113621 DOI: 10.1016/j.biopha.2023.116031] [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: 08/22/2023] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Osteoarthritis (OA) is a prevalent progressive disorder. Moxibustion has found widespread use in clinical practice for OA, while its underlying mechanism remains elusive. OBJECTIVE To investigate whether moxibustion can ameliorate OA by influencing the metabolic processes in OA and to elucidate the specific metabolic mechanisms involved. METHODS C57BL/6J WT mice were randomly assigned to one of three groups: the SHAM group, the ACLT group, and the ACLT+M group. In the ACLT+M group, mice underwent moxibustion treatment at acupoints Shenshu (BL23) and Zusanli (ST36) for a continuous period of 28 days, with each session lasting 20 min. We conducted a comprehensive analysis to assess the impact of moxibustion on OA, focusing on pathological changes, intestinal flora composition, and serum metabolites. RESULTS Moxibustion treatment effectively mitigated OA-related pathological changes. Specifically, moxibustion treatment resulted in the amelioration of articular cartilage damage, synovial inflammation, subchondral bone sclerosis when compared to the ACLT group. Moreover, 16S rDNA sequencing analysis revealed that moxibustion treatment positively influenced the composition of the flora, making it more similar to that of the SHAM group. Notably, moxibustion treatment led to a reduction in the abundance of Ruminococcus and Proteobacteria in the intestine. In addition, non-targeted metabolomics analysis identified 254 significantly different metabolites between the groups. Based on KEGG pathway analysis and the observed impact of moxibustion on OA-related inflammation, moxibustion therapy is closely associated with the cAMP-related signaling pathway. CONCLUSION Moxibustion can relieve OA by regulating intestinal flora and via impacting cAMP-related signaling pathway.
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Affiliation(s)
- Liping Fu
- Department of Rehabilitation Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China; Third Level Research Laboratory of State Administration of Traditional Chinese Medicine, Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Huimin Duan
- Department of Rehabilitation Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Yisi Cai
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China; Third Level Research Laboratory of State Administration of Traditional Chinese Medicine, Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Xuelan Chen
- Department of Rehabilitation Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Binhua Zou
- Department of Rehabilitation Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China.
| | - Lixia Yuan
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China.
| | - Gang Liu
- Department of Rehabilitation Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China.
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Fazekas LA, Szabo B, Szegeczki V, Filler C, Varga A, Godo ZA, Toth G, Reglodi D, Juhasz T, Nemeth N. Impact Assessment of Pituitary Adenylate Cyclase Activating Polypeptide (PACAP) and Hemostatic Sponge on Vascular Anastomosis Regeneration in Rats. Int J Mol Sci 2023; 24:16695. [PMID: 38069018 PMCID: PMC10706260 DOI: 10.3390/ijms242316695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 12/18/2023] Open
Abstract
The proper regeneration of vessel anastomoses in microvascular surgery is crucial for surgical safety. Pituitary adenylate cyclase-activating polypeptide (PACAP) can aid healing by decreasing inflammation, apoptosis and oxidative stress. In addition to hematological and hemorheological tests, we examined the biomechanical and histological features of vascular anastomoses with or without PACAP addition and/or using a hemostatic sponge (HS). End-to-end anastomoses were established on the right femoral arteries of rats. On the 21st postoperative day, femoral arteries were surgically removed for evaluation of tensile strength and for histological and molecular biological examination. Effects of PACAP were also investigated in tissue culture in vitro to avoid the effects of PACAP degrading enzymes. Surgical trauma and PACAP absorption altered laboratory parameters; most notably, the erythrocyte deformability decreased. Arterial wall thickness showed a reduction in the presence of HS, which was compensated by PACAP in both the tunica media and adventitia in vivo. The administration of PACAP elevated these parameters in vitro. In conclusion, the application of the neuropeptide augmented elastin expression while HS reduced it, but no significant alterations were detected in collagen type I expression. Elasticity and tensile strength increased in the PACAP group, while it decreased in the HS decreased. Their combined use was beneficial for vascular regeneration.
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Affiliation(s)
- Laszlo Adam Fazekas
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Moricz Zsigmond ut 22, H-4032 Debrecen, Hungary; (L.A.F.); (B.S.); (A.V.)
| | - Balazs Szabo
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Moricz Zsigmond ut 22, H-4032 Debrecen, Hungary; (L.A.F.); (B.S.); (A.V.)
| | - Vince Szegeczki
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary; (V.S.); (C.F.); (T.J.)
| | - Csaba Filler
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary; (V.S.); (C.F.); (T.J.)
| | - Adam Varga
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Moricz Zsigmond ut 22, H-4032 Debrecen, Hungary; (L.A.F.); (B.S.); (A.V.)
| | - Zoltan Attila Godo
- Department of Information Technology, Faculty of Informatics, University of Debrecen, Kassai ut 26, H-4028 Debrecen, Hungary;
| | - Gabor Toth
- Department of Medical Chemistry, Albert Szent-Györgyi Medical School, University of Szeged, Dom ter 8, H-6720 Szeged, Hungary;
| | - Dora Reglodi
- HUN-REN-PTE PACAP Research Group, Department of Anatomy, Medical School, University of Pecs, Szigeti ut 12, H-7624 Pecs, Hungary;
| | - Tamas Juhasz
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary; (V.S.); (C.F.); (T.J.)
| | - Norbert Nemeth
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Moricz Zsigmond ut 22, H-4032 Debrecen, Hungary; (L.A.F.); (B.S.); (A.V.)
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Blümm C, Bonaterra GA, Schwarzbach H, Eiden LE, Weihe E, Kinscherf R. PAC1 deficiency reduces chondrogenesis in atherosclerotic lesions of hypercholesterolemic ApoE-deficient mice. BMC Cardiovasc Disord 2023; 23:566. [PMID: 37980508 PMCID: PMC10657554 DOI: 10.1186/s12872-023-03600-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 11/07/2023] [Indexed: 11/20/2023] Open
Abstract
BACKGROUND Induction of chondrogenesis is associated with progressive atherosclerosis. Deficiency of the ADCYAP1 gene encoding pituitary adenylate cyclase-activating peptide (PACAP) aggravates atherosclerosis in ApoE deficient (ApoE-/-) mice. PACAP signaling regulates chondrogenesis and osteogenesis during cartilage and bone development. Therefore, this study aimed to decipher whether PACAP signaling is related to atherogenesis-related chondrogenesis in the ApoE-/- mouse model of atherosclerosis and under the influence of a high-fat diet. METHODS For this purpose, PACAP-/-/ApoE-/-, PAC1-/-/ApoE-/-, and ApoE-/- mice, as well as wildtype (WT) mice, were studied under standard chow (SC) or cholesterol-enriched diet (CED) for 20 weeks. The amount of cartilage matrix in atherosclerotic lesions of the brachiocephalic trunk (BT) with maximal lumen stenosis was monitored by alcian blue and collagen II staining on deparaffinized cross sections. The chondrogenic RUNX family transcription factor 2 (RUNX2), macrophages [(MΦ), Iba1+], and smooth muscle cells (SMC, sm-α-actin) were immunohistochemically analyzed and quantified. RESULTS ApoE-/- mice fed either SC or CED revealed an increase of alcian blue-positive areas within the media compared to WT mice. PAC1-/-/ApoE-/- mice under CED showed a reduction in the alcian blue-positive plaque area in the BT compared to ApoE-/- mice. In contrast, PACAP deficiency in ApoE-/- mice did not affect the chondrogenic signature under either diet. CONCLUSIONS Our data show that PAC1 deficiency reduces chondrogenesis in atherosclerotic plaques exclusively under conditions of CED-induced hypercholesterolemia. We conclude that CED-related chondrogenesis occurs in atherosclerotic plaques via transdifferentiation of SMCs and MΦ, partly depending on PACAP signaling through PAC1. Thus, PAC1 antagonists or PACAP agonists may offer therapeutic potential against pathological chondrogenesis in atherosclerotic lesions generated under hypercholesterolemic conditions, especially in familial hypercholesterolemia. This discovery opens therapeutic perspectives to be used in the treatment against the progression of atherosclerosis.
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Affiliation(s)
- C Blümm
- Institute for Anatomy and Cell Biology, Department of Medical Cell Biology, University of Marburg, 35032, Marburg, Germany
| | - G A Bonaterra
- Institute for Anatomy and Cell Biology, Department of Medical Cell Biology, University of Marburg, 35032, Marburg, Germany.
| | - H Schwarzbach
- Institute for Anatomy and Cell Biology, Department of Medical Cell Biology, University of Marburg, 35032, Marburg, Germany
| | - L E Eiden
- Section on Molecular Neuroscience, Laboratory of Cellular and Molecular Regulation, National Institute of Mental Health Intramural Research Program, Bethesda, MD, 20814, USA
| | - E Weihe
- Institute for Anatomy and Cell Biology, Department of Medical Cell Biology, University of Marburg, 35032, Marburg, Germany
| | - R Kinscherf
- Institute for Anatomy and Cell Biology, Department of Medical Cell Biology, University of Marburg, 35032, Marburg, Germany
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Effect of PACAP/PAC1R on Follicle Development of Djungarian Hamster ( Phodopus sungorus) with the Variation of Ambient Temperatures. BIOLOGY 2023; 12:biology12020315. [PMID: 36829590 PMCID: PMC9953326 DOI: 10.3390/biology12020315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/02/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023]
Abstract
In Phodopus sungorus, the relationship between pituitary adenylate cyclase-activating polypeptide (PACAP) and its receptor (PAC1R), follicle-stimulating hormone (FSH), and follicle development remains unclear. In this study, we found that the development of growing follicles and antral follicles were inhibited at low (8 °C, 14 °C) and high (29 °C) temperatures. Meanwhile, PACAP/PAC1R expression and follicle-stimulating hormone (FSH) serum concentration significantly decreased during ambient temperatures of 8 °C, 14 °C and 29 °C compared to 21 °C. Thus, ambient temperature may influence the expression of PACAP/PAC1R and the synthesis of FSH for involvement in follicle development. Moreover, PACAP/PAC1R had major functional elements including PKA/PKG and PKC phosphorylation sites, which may involve in the pathway of FSH synthesis through cAMP-PKA and its downstream signal pathway. Moreover, there was a significant positive correlation between the expression levels of PACAP/PAC1R and the number of the growing and antral follicles, as well as the serum FSH concentration and the number of antral follicles. However, there was no significant correlation between the expression levels of PACAP/PAC1R and the serum FSH concentration, indicating a complicated pathway between PACAP/PAC1R and FSH. In conclusion, ambient temperature affects the expression of PACAP/PAC1R and the serum FSH concentration. The expression of PACAP/PAC1R and the serum FSH concentration are correlated with follicle development, which implies that they are involved in follicle development, which will ultimately influence the reproduction of Phodopus sungorus. This study can lay the foundation for future investigation on the regulation mechanism of reproduction in Phodopus sungorus.
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Li T, Peng J, Li Q, Shu Y, Zhu P, Hao L. The Mechanism and Role of ADAMTS Protein Family in Osteoarthritis. Biomolecules 2022; 12:biom12070959. [PMID: 35883515 PMCID: PMC9313267 DOI: 10.3390/biom12070959] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/01/2022] [Accepted: 07/05/2022] [Indexed: 01/27/2023] Open
Abstract
Osteoarthritis (OA) is a principal cause of aches and disability worldwide. It is characterized by the inflammation of the bone leading to degeneration and loss of cartilage function. Factors, including diet, age, and obesity, impact and/or lead to osteoarthritis. In the past few years, OA has received considerable scholarly attention owing to its increasing prevalence, resulting in a cumbersome burden. At present, most of the interventions only relieve short-term symptoms, and some treatments and drugs can aggravate the disease in the long run. There is a pressing need to address the safety problems due to osteoarthritis. A disintegrin-like and metalloprotease domain with thrombospondin type 1 repeats (ADAMTS) metalloproteinase is a kind of secretory zinc endopeptidase, comprising 19 kinds of zinc endopeptidases. ADAMTS has been implicated in several human diseases, including OA. For example, aggrecanases, ADAMTS-4 and ADAMTS-5, participate in the cleavage of aggrecan in the extracellular matrix (ECM); ADAMTS-7 and ADAMTS-12 participate in the fission of Cartilage Oligomeric Matrix Protein (COMP) into COMP lyase, and ADAMTS-2, ADAMTS-3, and ADAMTS-14 promote the formation of collagen fibers. In this article, we principally review the role of ADAMTS metalloproteinases in osteoarthritis. From three different dimensions, we explain how ADAMTS participates in all the following aspects of osteoarthritis: ECM, cartilage degeneration, and synovial inflammation. Thus, ADAMTS may be a potential therapeutic target in osteoarthritis, and this article may render a theoretical basis for the study of new therapeutic methods for osteoarthritis.
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Affiliation(s)
- Ting Li
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang 330000, China; (T.L.); (J.P.); (Q.L.); (Y.S.); (P.Z.)
- Second Clinical Medical College, Nanchang University, Nanchang 330000, China
| | - Jie Peng
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang 330000, China; (T.L.); (J.P.); (Q.L.); (Y.S.); (P.Z.)
- Second Clinical Medical College, Nanchang University, Nanchang 330000, China
| | - Qingqing Li
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang 330000, China; (T.L.); (J.P.); (Q.L.); (Y.S.); (P.Z.)
- Second Clinical Medical College, Nanchang University, Nanchang 330000, China
| | - Yuan Shu
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang 330000, China; (T.L.); (J.P.); (Q.L.); (Y.S.); (P.Z.)
- Second Clinical Medical College, Nanchang University, Nanchang 330000, China
| | - Peijun Zhu
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang 330000, China; (T.L.); (J.P.); (Q.L.); (Y.S.); (P.Z.)
- Second Clinical Medical College, Nanchang University, Nanchang 330000, China
| | - Liang Hao
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, 1 Minde Road, Nanchang 330000, China; (T.L.); (J.P.); (Q.L.); (Y.S.); (P.Z.)
- Correspondence: ; Tel.: +86-13607008562; Fax: +86-86415785
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Ko KR, Lee H, Han SH, Ahn W, Kim DK, Kim IS, Jung BS, Lee S. Substance P, A Promising Therapeutic Target in Musculoskeletal Disorders. Int J Mol Sci 2022; 23:ijms23052583. [PMID: 35269726 PMCID: PMC8910130 DOI: 10.3390/ijms23052583] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/20/2022] [Accepted: 02/23/2022] [Indexed: 02/04/2023] Open
Abstract
A large number of studies have focused on the role of substance P (SP) and the neurokinin-1 receptor (NK1R) in the pathogenesis of a variety of medical conditions. This review provides an overview of the role of the SP-NK1R pathway in the pathogenesis of musculoskeletal disorders and the evidence for its role as a therapeutic target for these disorders, which are major public health problems in most countries. To summarize, the brief involvement of SP may affect tendon healing in an acute injury setting. SP combined with an adequate conjugate can be a regenerative therapeutic option in osteoarthritis. The NK1R antagonist is a promising agent for tendinopathy, rheumatoid arthritis, and osteoarthritis. Research on the SP-NK1R pathway will be helpful for developing novel drugs for osteoporosis.
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Affiliation(s)
- Kyung Rae Ko
- Department of Orthopedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea; (K.R.K.); (I.-S.K.)
| | - Hyunil Lee
- Department of Orthopedic Surgery, Ilsan Paik Hospital, Inje University, 170 Juhwa-ro, Ilsanseo-gu, Goyang-si 10380, Gyeonggi-do, Korea;
| | - Soo-Hong Han
- Department of Orthopedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Gyeonggi-do, Korea; (S.-H.H.); (W.A.); (D.K.K.)
| | - Wooyeol Ahn
- Department of Orthopedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Gyeonggi-do, Korea; (S.-H.H.); (W.A.); (D.K.K.)
| | - Do Kyung Kim
- Department of Orthopedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Gyeonggi-do, Korea; (S.-H.H.); (W.A.); (D.K.K.)
| | - Il-Su Kim
- Department of Orthopedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea; (K.R.K.); (I.-S.K.)
| | - Bo Sung Jung
- Department of Orthopedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Gyeonggi-do, Korea; (S.-H.H.); (W.A.); (D.K.K.)
- Correspondence: (B.S.J.); (S.L.); Tel.: +82-31-780-5289 (B.S.J. & S.L.); Fax: +82-31-881-7114 (B.S.J. & S.L.)
| | - Soonchul Lee
- Department of Orthopedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, 335 Pangyo-ro, Bundang-gu, Seongnam-si 13488, Gyeonggi-do, Korea; (S.-H.H.); (W.A.); (D.K.K.)
- Correspondence: (B.S.J.); (S.L.); Tel.: +82-31-780-5289 (B.S.J. & S.L.); Fax: +82-31-881-7114 (B.S.J. & S.L.)
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Azevedo MDCS, Fonseca AC, Colavite PM, Melchiades JL, Tabanez AP, Codo AC, de Medeiros AI, Trombone APF, Garlet GP. Macrophage Polarization and Alveolar Bone Healing Outcome: Despite a Significant M2 Polarizing Effect, VIP and PACAP Treatments Present a Minor Impact in Alveolar Bone Healing in Homeostatic Conditions. Front Immunol 2021; 12:782566. [PMID: 34992601 PMCID: PMC8724033 DOI: 10.3389/fimmu.2021.782566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 11/29/2021] [Indexed: 12/20/2022] Open
Abstract
Host inflammatory immune response comprises an essential element of the bone healing process, where M2 polarization allegedly contributes to a favorable healing outcome. In this context, immunoregulatory molecules that modulate host response, including macrophage polarization, are considered potential targets for improving bone healing. This study aims to evaluate the role of the immunoregulatory molecules VIP (Vasoactive intestinal peptide) and PACAP (Pituitary adenylate cyclase activating polypeptide), which was previously described to favor the development of the M2 phenotype, in the process of alveolar bone healing in C57Bl/6 (WT) mice. Experimental groups were submitted to tooth extraction and maintained under control conditions or treated with VIP or PACAP were evaluated by microtomographic (µCT), histomorphometric, immunohistochemical, and molecular analysis at 0, 3, 7, and 14 days to quantify tissue healing and host response indicators at the healing site. Gene expression analysis demonstrates the effectiveness of VIP or PACAP in modulating host response, evidenced by the early dominance of an M2-type response, which was paralleled by a significant increase in M2 (CD206+) in treated groups. However, despite the marked effect of M1/M2 balance in the healing sites, the histomorphometric analysis does not reveal an equivalent/corresponding modulation of the healing process. µCT reveals a slight increase in bone matrix volume and the trabecular thickness number in the PACAP group, while histomorphometric analyzes reveal a slight increase in the VIP group, both at a 14-d time-point; despite the increased expression of osteogenic factors, osteoblastic differentiation, activity, and maturation markers in both VIP and PACAP groups. Interestingly, a lower number of VIP and PACAP immunolabeled cells were observed in the treated groups, suggesting a reduction in endogenous production. In conclusion, while both VIP and PACAP treatments presented a significant immunomodulatory effect with potential for increased healing, no major changes were observed in bone healing outcome, suggesting that the signals required for bone healing under homeostatic conditions are already optimal, and additional signals do not improve an already optimal process. Further studies are required to elucidate the role of macrophage polarization in the bone healing process.
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Affiliation(s)
| | - Angélica Cristina Fonseca
- Bauru School of Dentistry, Department of Biological Sciences, University of São Paulo, Bauru, Brazil
| | - Priscila Maria Colavite
- Bauru School of Dentistry, Department of Biological Sciences, University of São Paulo, Bauru, Brazil
| | - Jéssica Lima Melchiades
- Bauru School of Dentistry, Department of Biological Sciences, University of São Paulo, Bauru, Brazil
| | - André Petenuci Tabanez
- Bauru School of Dentistry, Department of Biological Sciences, University of São Paulo, Bauru, Brazil
| | - Ana Campos Codo
- School of Pharmaceutical Sciences, Department of Immunology, São Paulo State University, Araraquara, Brazil
| | - Alexandra Ivo de Medeiros
- School of Pharmaceutical Sciences, Department of Immunology, São Paulo State University, Araraquara, Brazil
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10
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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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11
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Protective Effects of PACAP in a Rat Model of Diabetic Neuropathy. Int J Mol Sci 2021; 22:ijms221910691. [PMID: 34639032 PMCID: PMC8509403 DOI: 10.3390/ijms221910691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/20/2021] [Accepted: 09/24/2021] [Indexed: 02/07/2023] Open
Abstract
Pituitary adenylate cyclase-activating peptide (PACAP) is a neuropeptide with a widespread occurrence and diverse effects. PACAP has well-documented neuro- and cytoprotective effects, proven in numerous studies. Among others, PACAP is protective in models of diabetes-associated diseases, such as diabetic nephropathy and retinopathy. As the neuropeptide has strong neurotrophic and neuroprotective actions, we aimed at investigating the effects of PACAP in a rat model of streptozotocin-induced diabetic neuropathy, another common complication of diabetes. Rats were treated with PACAP1-38 every second day for 8 weeks starting simultaneously with the streptozotocin injection. Nerve fiber morphology was examined with electron microscopy, chronic neuronal activation in pain processing centers was studied with FosB immunohistochemistry, and functionality was assessed by determining the mechanical nociceptive threshold. PACAP treatment did not alter body weight or blood glucose levels during the 8-week observation period. However, PACAP attenuated the mechanical hyperalgesia, compared to vehicle-treated diabetic animals, and it markedly reduced the morphological signs characteristic for neuropathy: axon–myelin separation, mitochondrial fission, unmyelinated fiber atrophy, and basement membrane thickening of endoneurial vessels. Furthermore, PACAP attenuated the increase in FosB immunoreactivity in the dorsal spinal horn and periaqueductal grey matter. Our results show that PACAP is a promising therapeutic agent in diabetes-associated complications, including diabetic neuropathy.
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12
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Szegeczki V, Perényi H, Horváth G, Hinnah B, Tamás A, Radák Z, Ábrahám D, Zákány R, Reglodi D, Juhász T. Physical Training Inhibits the Fibrosis Formation in Alzheimer's Disease Kidney Influencing the TGFβ Signaling Pathways. J Alzheimers Dis 2021; 81:1195-1209. [PMID: 33896841 PMCID: PMC8293655 DOI: 10.3233/jad-201206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background: Alzheimer’s disease (AD) is a neurodegenerative illness, with several peripheral pathological signs such as accumulation of amyloid-β (Aβ) plaques in the kidney. Alterations of transforming growth factor β (TGFβ) signaling in the kidney can induce fibrosis, thus disturbing the elimination of Aβ. Objective: A protective role of increased physical activity has been proven in AD and in kidney fibrosis, but it is not clear whether TGFβ signalization is involved in this effect. Methods: The effects of long-term training on fibrosis were investigated in the kidneys of mice representing a model of AD (B6C3-Tg(APPswe,PSEN1dE9)85Dbo/J) by comparing wild type and AD organs. Alterations of canonical and non-canonical TGFβ signaling pathways were followed with PCR, western blot, and immunohistochemistry. Results: Accumulation of collagen type I and interstitial fibrosis were reduced in kidneys of AD mice after long-term training. AD induced the activation of canonical and non-canonical TGFβ pathways in non-trained mice, while expression levels of signal molecules of both TGFβ pathways became normalized in trained AD mice. Decreased amounts of phosphoproteins with molecular weight corresponding to that of tau and the cleaved C-terminal of AβPP were detected upon exercising, along with a significant increase of PP2A catalytic subunit expression. Conclusion: Our data suggest that physical training has beneficial effects on fibrosis formation in kidneys of AD mice and TGFβ signaling plays a role in this phenomenon.
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Affiliation(s)
- Vince Szegeczki
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Helga Perényi
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Gabriella Horváth
- Department of Anatomy, PTE-MTA PACAP Research Team, University of Pécs Medical School, Pécs, Hungary
| | - Barbara Hinnah
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Andrea Tamás
- Department of Anatomy, PTE-MTA PACAP Research Team, University of Pécs Medical School, Pécs, Hungary
| | - Zsolt Radák
- Research Institute of Sport Science, University of Physical Education, Budapest, Hungary
| | - Dóra Ábrahám
- Research Institute of Sport Science, University of Physical Education, Budapest, Hungary
| | - Róza Zákány
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Dóra Reglodi
- Department of Anatomy, PTE-MTA PACAP Research Team, University of Pécs Medical School, Pécs, Hungary
| | - Tamás Juhász
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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13
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Pountos I, Panteli M, Walters G, Giannoudis PV. NSAIDs inhibit bone healing through the downregulation of TGF-β3 expression during endochondral ossification. Injury 2021; 52:1294-1299. [PMID: 33472741 DOI: 10.1016/j.injury.2021.01.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/21/2020] [Accepted: 01/04/2021] [Indexed: 02/02/2023]
Abstract
INTRODUCTION & AIMS Non Steroidal Anti-Inflammatory drugs (NSAIDs) are potent inhibitors of post-traumatic pain. Several studies have highlighted that NSAIDs could exert a negative effect on bone healing process possibly by down-regulating chondrogenesis and endochondral ossification. The aim of the study is to explore the potential mechanism though which NSAIDs can affect chondrogenesis. M&M: Trabecular bone from the fracture site was isolated from 10 patients suffering from long bone fractures. Mesenchymal Stem Cells (MSCs) were isolated following collagenase digestion and functional assays to assess the effect of diclofenac sodium on chondrogenesis were performed. Gene expression analysis of 84 key molecules was performed. RESULTS Diclofenac sodium inhibits chondrogenic differentiation and induces a strong inhibition of prostaglandin E-2 (PGE-2) production during chondrogenic differentiation. Replenishment of PGE-2 did not reverse this negative effect. Chondrogenic inhibition is similar in cells treated only for the first week of chondrogenic differentiation or continuously for 3 weeks. Gene analysis shows a strong downregulation of TGF-β3 and FGF-1 while TNF was upregulated. CONCLUSION NSAIDs seem to affect the transition phase of mesenchymal stem cells towards functional chondrocytes. This effect is unrelated to the endogenous production of PGE-2. The downregulation of the expression of key molecules like TGF-β3 seem to be the underlying mechanism.
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Affiliation(s)
- Ippokratis Pountos
- Academic Department of Trauma & Orthopaedics, School of Medicine, University of Leeds, United Kingdom.
| | - Michalis Panteli
- Academic Department of Trauma & Orthopaedics, School of Medicine, University of Leeds, United Kingdom
| | - Gavin Walters
- Academic Department of Trauma & Orthopaedics, School of Medicine, University of Leeds, United Kingdom
| | - Peter V Giannoudis
- Academic Department of Trauma & Orthopaedics, School of Medicine, University of Leeds, United Kingdom
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14
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Shi L, Wang C, Yan Y, Wang G, Zhang J, Feng L, Yang X, Li G. Function study of vasoactive intestinal peptide on chick embryonic bone development. Neuropeptides 2020; 83:102077. [PMID: 32839008 DOI: 10.1016/j.npep.2020.102077] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 08/02/2020] [Accepted: 08/04/2020] [Indexed: 01/08/2023]
Abstract
Embryonic bone development is a complicated procedure and modulated by neuro-osteogenic interaction. Vasoactive intestinal peptide (VIP) was first identified as a neural vasodilator and further proved to possess multiple biological functions such as neurotransmitter and immune regulator. However, as a key peptide regulator presented in skeletal nerve fibers, the function of VIP on innervation and early bone development regulation has not fully been uncovered yet. In this study, the chick embryo has been used as an experimental model to address the effect of VIP on embryonic bone development. Our study results confirmed the innervation of peripheral nerve fibers into limb bone tissue, which was revealed by the detection of neurofilament (NF) and class III β-tubulin (TUJ-1) in bone tissue at various developing stages. The VIP mRNA and peptide expression level in bone tissue were also increased upon innervation progress. A chick embryonic chemical sympathectomy model was constructed by exposing chick embryos with neurotoxin 6-OHDA. The 6-OHDA exposure of the early chick embryo caused the reduction of neural crest formation and NF expression. 6-OHDA treatment also inhibited distal limb bone development as well as VIP expression. Furthermore, co-application of VIP with 6-OHDA exposure could rescue the inhibited osteogenesis activity and delayed bone development during embryogenesis. Taken together, these results reveal that VIP played an important role during innervation at early stage of bone development. VIP could restore chemical sympathectomy induced osteogenesis inhibition and bone development impair in chick embryos.
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Affiliation(s)
- Liu Shi
- Department of Orthopaedics & Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, PR China; Trauma Center, Zhongda Hospital, School of Medicine, Southeast University, No. 87 Ding Jia Qiao, Nanjing, PR China; School of Medicine, Southeast University, No. 87 Ding Jia Qiao, Nanjing, PR China
| | - Chaojie Wang
- Division of Histology and Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, PR China
| | - Yu Yan
- Division of Histology and Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, PR China
| | - Guang Wang
- Division of Histology and Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, PR China
| | - Jinfang Zhang
- Department of Orthopaedics & Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, PR China; Key Laboratory of Orthopaedics and Traumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, The First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, PR China; Laboratory of Orthopaedics & Traumatology, Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Lu Feng
- Department of Orthopaedics & Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, PR China.
| | - Xuesong Yang
- Division of Histology and Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, PR China.
| | - Gang Li
- Department of Orthopaedics & Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, PR China; MOE Key Laboratory for Regenerative Medicine, School of Biomedical Sciences, The Chinese University of Hong Kong, SAR, PR China.
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15
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Perényi H, Szegeczki V, Horváth G, Hinnah B, Tamás A, Radák Z, Ábrahám D, Zákány R, Reglodi D, Juhász T. Physical Activity Protects the Pathological Alterations of Alzheimer's Disease Kidneys via the Activation of PACAP and BMP Signaling Pathways. Front Cell Neurosci 2020; 14:243. [PMID: 32922265 PMCID: PMC7457084 DOI: 10.3389/fncel.2020.00243] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 07/14/2020] [Indexed: 12/11/2022] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder with typical amyloid beta (Aβ) aggregations. Elimination of the Aβ precursors via the kidneys makes the organ a potential factor in the systemic degeneration leading to AD. Pituitary adenylate cyclase-activating polypeptide (PACAP) exerts neuroprotective effects in AD and plays a protective role in kidney pathologies. Increased physical activity is preventive of the formation of AD, but its detailed mechanism and possible connections with PACAP have not been clarified. In the kidneys of AD mice, the effects of physical activity were investigated by comparing wild-type and AD organs. Aβ plaque formation was reduced in AD kidneys after increased training (TAD). Mechanotransduction elevated PACAP receptor expression in TAD mice and normalized the protein kinase A (PKA)-mediated pathways. BMP4/BMPR1 elevation activated Smad1 expression and normalized collagen type IV in TAD animals. In conclusion, our data suggest that elevated physical activity can prevent the AD-induced pathological changes in the kidneys via, at least in part, the activation of PACAP-BMP signaling crosstalk.
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Affiliation(s)
- Helga Perényi
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Vince Szegeczki
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Gabriella Horváth
- Department of Anatomy, PTE-MTA PACAP Research Team, University of Pécs Medical School, Pécs, Hungary
| | - Barbara Hinnah
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Andrea Tamás
- Department of Anatomy, PTE-MTA PACAP Research Team, University of Pécs Medical School, Pécs, Hungary
| | - Zsolt Radák
- Research Institute of Sport Science, University of Physical Education, Budapest, Hungary
| | - Dóra Ábrahám
- Research Institute of Sport Science, University of Physical Education, Budapest, Hungary
| | - Róza Zákány
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Dora Reglodi
- Department of Anatomy, PTE-MTA PACAP Research Team, University of Pécs Medical School, Pécs, Hungary
| | - Tamás Juhász
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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16
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Alzheimer's Disease Mouse as a Model of Testis Degeneration. Int J Mol Sci 2020; 21:ijms21165726. [PMID: 32785075 PMCID: PMC7460847 DOI: 10.3390/ijms21165726] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 08/05/2020] [Accepted: 08/06/2020] [Indexed: 12/18/2022] Open
Abstract
Pituitary adenylate cyclase activating polypeptide (PACAP) is a neuropeptide with protective functions in the central nervous system and various peripheral organs. PACAP has the highest expression level in the testes, among the peripheral organs, and has a positive regulative role in spermatogenesis and in sperm motility. In the present study, we explored testicular degenerative alterations in a mouse model of Alzheimer’s disease (AD) (B6C3-Tg(APPswe,PSEN1dE9)85Dbo/J) and demonstrated changes in PACAP-regulated signaling pathways. In addition, the effects of increased physical activity of AD (trained AD (TAD)) mice on testis were also followed. Reduced cell number and decreased thickness of basement membrane were detected in AD samples. These changes were compensated by physical activity. Expression of PACAP receptors and canonical signaling elements such as PKA, P-PKA, PP2A significantly decreased in AD mice, and altered Sox transcription factor expression was also detected. Via this signaling mechanism, physical activity compensated the negative effects of AD on the expression of type IV collagen. Our findings suggest that the testes of AD mice can be a good model of testis degeneration. Moreover, it can be an appropriate organ to follow the effects of various interventions such as physical activity on tissue regeneration and signaling alterations.
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17
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Decreased Serum Pituitary Adenylate Cyclase Activating Polypeptide (PACAP) Levels May Reflect Disease Severity in Patients with Non-traumatic Osteonecrosis of Femoral Head. Int J Pept Res Ther 2020. [DOI: 10.1007/s10989-020-10098-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Lauretta G, Ravalli S, Szychlinska MA, Castorina A, Maugeri G, D'Amico AG, D'Agata V, Musumeci G. Current knowledge of pituitary adenylate cyclase activating polypeptide (PACAP) in articular cartilage. Histol Histopathol 2020; 35:1251-1262. [PMID: 32542641 DOI: 10.14670/hh-18-233] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Pituitary adenylate cyclase activating polypeptide (PACAP) is an evolutionally well conserved neuropeptide, mainly expressed by neuronal and peripheral cells. It proves to be an interesting object of study both for its trophic functions during the development of several tissues and for its protective effects against oxidative stress, hypoxia, inflammation and apoptosis in different degenerative diseases. This brief review summarises the recent findings concerning the role of PACAP in the articular cartilage. PACAP and its receptors are expressed during chondrogenesis and are shown to activate the pathways involved in regulating cartilage development. Moreover, this neuropeptide proves to be chondroprotective against those stressors that determine cartilage degeneration and contribute to the onset of osteoarthritis (OA), the most common form of degenerative joint disease. Indeed, the degenerated cartilage exhibits low levels of PACAP, suggesting that its endogenous levels in adult cartilage may play an essential role in maintaining physiological properties. Thanks to its peculiar characteristics, exogenous administration of PACAP could be suggested as a potential tool to slow down the progression of OA and for cartilage regeneration approaches.
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Affiliation(s)
- Giovanni Lauretta
- Department of Biomedical and Biotechnological Sciences, Anatomy, Histology and Movement Sciences Section, School of Medicine, University of Catania, Catania, Italy
| | - Silvia Ravalli
- Department of Biomedical and Biotechnological Sciences, Anatomy, Histology and Movement Sciences Section, School of Medicine, University of Catania, Catania, Italy
| | - Marta Anna Szychlinska
- Department of Biomedical and Biotechnological Sciences, Anatomy, Histology and Movement Sciences Section, School of Medicine, University of Catania, Catania, Italy
| | - Alessandro Castorina
- School of Life Science, Faculty of Science, University of Technology Sydney, Sydney, Australia
| | - Grazia Maugeri
- Department of Biomedical and Biotechnological Sciences, Anatomy, Histology and Movement Sciences Section, School of Medicine, University of Catania, Catania, Italy
| | - Agata Grazia D'Amico
- Department of Human Science and Promotion of Quality of Life, San Raffaele Open University of Rome, Rome, Italy
| | - Velia D'Agata
- Department of Biomedical and Biotechnological Sciences, Anatomy, Histology and Movement Sciences Section, School of Medicine, University of Catania, Catania, Italy
| | - Giuseppe Musumeci
- Department of Biomedical and Biotechnological Sciences, Anatomy, Histology and Movement Sciences Section, School of Medicine, University of Catania, Catania, Italy. .,Research Center on Motor Activities (CRAM), University of Catania, Catania, Italy.,Department of Biology, Sbarro Institute for Cancer Research and Molecular Medicine, College of Science and Technology, Temple University, Philadelphia, PA, USA
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19
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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: 47] [Impact Index Per Article: 11.8] [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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20
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Li FXZ, Xu F, Lin X, Wu F, Zhong JY, Wang Y, Guo B, Zheng MH, Shan SK, Yuan LQ. The Role of Substance P in the Regulation of Bone and Cartilage Metabolic Activity. Front Endocrinol (Lausanne) 2020; 11:77. [PMID: 32180759 PMCID: PMC7059306 DOI: 10.3389/fendo.2020.00077] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 02/05/2020] [Indexed: 01/06/2023] Open
Abstract
Substance P (SP) is a neuropeptide that is released from sensory nerve endings and is widely present in nerve fibers. It acts on bones and related tissues by binding to receptors, thereby regulating bone metabolism, cartilage metabolism, and fracture healing. SP has attracted widespread attention as a signaling substance that can be recognized by both the immune system and the nervous system. Previous studies have shown that bone and chondrocytes can synthesize and secrete sensory neuropeptides and express their receptors, and can promote proliferation, differentiation, apoptosis, matrix synthesis, and the degradation of target cells through autocrine/paracrine modes. In this paper, we review the research progress made in this field in recent years in order to provide a reference for further understanding the regulatory mechanism of bone and cartilage physiology and pathological metabolism.
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Affiliation(s)
- Fu-Xing-Zi Li
- Department of Endocrinology and Metabolism, National Clinical Research Center for Metabolic Disease, Hunan Provincial Key Laboratory of Metabolic Bone Diseases, The Second Xiang-Ya Hospital, Central South University, Changsha, China
| | - Feng Xu
- Department of Endocrinology and Metabolism, National Clinical Research Center for Metabolic Disease, Hunan Provincial Key Laboratory of Metabolic Bone Diseases, The Second Xiang-Ya Hospital, Central South University, Changsha, China
| | - Xiao Lin
- Department of Radiology, The Second Xiang-Ya Hospital, Central South University, Changsha, China
| | - Feng Wu
- Department of Pathology, The Second Xiang-Ya Hospital, Central South University, Changsha, China
| | - Jia-Yu Zhong
- Department of Endocrinology and Metabolism, National Clinical Research Center for Metabolic Disease, Hunan Provincial Key Laboratory of Metabolic Bone Diseases, The Second Xiang-Ya Hospital, Central South University, Changsha, China
| | - Yi Wang
- Department of Endocrinology and Metabolism, National Clinical Research Center for Metabolic Disease, Hunan Provincial Key Laboratory of Metabolic Bone Diseases, The Second Xiang-Ya Hospital, Central South University, Changsha, China
| | - Bei Guo
- Department of Endocrinology and Metabolism, National Clinical Research Center for Metabolic Disease, Hunan Provincial Key Laboratory of Metabolic Bone Diseases, The Second Xiang-Ya Hospital, Central South University, Changsha, China
| | - Ming-Hui Zheng
- Department of Endocrinology and Metabolism, National Clinical Research Center for Metabolic Disease, Hunan Provincial Key Laboratory of Metabolic Bone Diseases, The Second Xiang-Ya Hospital, Central South University, Changsha, China
| | - Su-Kang Shan
- Department of Endocrinology and Metabolism, National Clinical Research Center for Metabolic Disease, Hunan Provincial Key Laboratory of Metabolic Bone Diseases, The Second Xiang-Ya Hospital, Central South University, Changsha, China
| | - Ling-Qing Yuan
- Department of Endocrinology and Metabolism, National Clinical Research Center for Metabolic Disease, Hunan Provincial Key Laboratory of Metabolic Bone Diseases, The Second Xiang-Ya Hospital, Central South University, Changsha, China
- *Correspondence: Ling-Qing Yuan
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21
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Osteoarthritis and Cartilage Regeneration: Focus on Pathophysiology and Molecular Mechanisms. Int J Mol Sci 2019; 20:ijms20246156. [PMID: 31817613 PMCID: PMC6940733 DOI: 10.3390/ijms20246156] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 12/05/2019] [Indexed: 12/12/2022] Open
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22
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Lack of Pituitary Adenylate Cyclase-Activating Polypeptide (PACAP) Disturbs Callus Formation. J Mol Neurosci 2019; 71:1543-1555. [PMID: 31808034 PMCID: PMC8349325 DOI: 10.1007/s12031-019-01448-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 11/13/2019] [Indexed: 12/20/2022]
Abstract
Pituitary adenylate cyclase–activating polypeptide (PACAP) is a naturally secreted signaling peptide and has important regulatory roles in the differentiation of the central nervous system and its absence results in disorders in femur development. PACAP has an important function in prevention of oxidative stress or mechanical stress in chondrogenesis but little is known about its function in bone regeneration. A new callus formation model was set to investigate its role in bone remodeling. Fracturing was 5 mm distal from the proximal articular surface of the tibia and the depth was 0.5 mm. Reproducibility of callus formation was investigated with CT 3, 7, and 21 days after the operation. Absence of PACAP did not alter the alkaline phosphatase (ALP) activation in PACAP KO healing process. In developing callus, the expression of collagen type I increased in wild-type (WT) and PACAP KO mice decreased to the end of healing process. Expression of the elements of BMP signaling was disturbed in the callus formation of PACAP KO mice, as bone morphogenic protein 4 (BMP4) and 6 showed an early reduction in bone regeneration. However, elevated Smad1 expression was demonstrated in PACAP KO mice. Our results indicate that PACAP KO mice show various signs of disturbed bone healing and suggest PACAP compensatory and fine tuning effects in proper bone regeneration.
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Szegeczki V, Bauer B, Jüngling A, Fülöp BD, Vágó J, Perényi H, Tarantini S, Tamás A, Zákány R, Reglődi D, Juhász T. Age-related alterations of articular cartilage in pituitary adenylate cyclase-activating polypeptide (PACAP) gene-deficient mice. GeroScience 2019; 41:775-793. [PMID: 31655957 PMCID: PMC6925077 DOI: 10.1007/s11357-019-00097-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 08/22/2019] [Indexed: 02/06/2023] Open
Abstract
Pituitary adenylate cyclase activating polypeptide (PACAP) is an evolutionarly conserved neuropeptide which is produced by various neuronal and non-neuronal cells, including cartilage and bone cells. PACAP has trophic functions in tissue development, and it also plays a role in cellular and tissue aging. PACAP takes part in the regulation of chondrogenesis, which prevents insufficient cartilage formation caused by oxidative and mechanical stress. PACAP knockout (KO) mice have been shown to display early aging signs affecting several organs. In the present work, we investigated articular cartilage of knee joints in young and aged wild-type (WT) and PACAP KO mice. A significant increase in the thickness of articular cartilage was detected in aged PACAP gene-deficient mice. Amongst PACAP receptors, dominantly PAC1 receptor was expressed in WT knee joints and a remarkable decrease was found in aged PACAP KO mice. Expression of PKA-regulated transcription factors, Sox5, Sox9 and CREB, decreased both in young and aged gene deficient mice, while Sox6, collagen type II and aggrecan expressions were elevated in young but were reduced in aged PACAP KO animals. Increased expression of hyaluronan (HA) synthases and HA-binding proteins was detected parallel with an elevated presence of HA in aged PACAP KO mice. Expression of bone related collagens (I and X) was augmented in young and aged animals. These results suggest that loss of PACAP signaling results in dysregulation of cartilage matrix composition and may transform articular cartilage in a way that it becomes more prone to degenerate.
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Affiliation(s)
- Vince Szegeczki
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, Debrecen, 4032, Hungary
| | - Balázs Bauer
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, Debrecen, 4032, Hungary
| | - Adél Jüngling
- Department of Anatomy, PTE-MTA PACAP Research Team, University of Pécs Medical School, Szigeti út 12, Pecs, 7624, Hungary
| | - Balázs Daniel Fülöp
- Department of Anatomy, PTE-MTA PACAP Research Team, University of Pécs Medical School, Szigeti út 12, Pecs, 7624, Hungary
| | - Judit Vágó
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, Debrecen, 4032, Hungary
| | - Helga Perényi
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, Debrecen, 4032, Hungary
| | - Stefano Tarantini
- Department of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Andrea Tamás
- Department of Anatomy, PTE-MTA PACAP Research Team, University of Pécs Medical School, Szigeti út 12, Pecs, 7624, Hungary
| | - Róza Zákány
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, Debrecen, 4032, Hungary
| | - Dóra Reglődi
- Department of Anatomy, PTE-MTA PACAP Research Team, University of Pécs Medical School, Szigeti út 12, Pecs, 7624, Hungary
| | - Tamás Juhász
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, Debrecen, 4032, Hungary.
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24
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Sun BY, Sun ZP, Pang ZC, Huang WT, Wu SP. Decreased synovial fluid pituitary adenylate cyclase-activating polypeptide (PACAP) levels may reflect disease severity in post-traumatic knee osteoarthritis after anterior cruciate ligament injury. Peptides 2019; 116:22-29. [PMID: 31039374 DOI: 10.1016/j.peptides.2019.04.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 04/08/2019] [Accepted: 04/10/2019] [Indexed: 11/25/2022]
Abstract
BACKGROUND It has been demonstrated that anterior cruciate ligament (ACL) injury-induced cartilage degeneration is the key risk factor for post-traumatic knee osteoarthritis (PTKOA).Pituitary adenylate cyclase-activating polypeptide (PACAP), a common neuropeptide exerting a wide spectrum of functions, has been proved to inhibit inflammation and prevent cartilage degeneration. OBJECTIVE The current study was performed to investigate circulating and synovial fluid PACAP concentrations in ACL injury patients to determine their relationship with the disease progression of the severity of post-traumatic knee osteoarthritis (PTKOA). METHODS 72 ACL injury patients receiving arthroscopical examination and surgery were enrolled in the study. Meanwhile, 60 gender-and-age non-traumatic patellar dislocation patients were enrolled as controls. The VAS score, Lysholm Score and International Knee Documentation Committee (IKDC) score were all recorded to evaluate the clinical severity. Serum and synovial fluid (SF) PACAP levels were investigated by enzyme-linked immunosorbent assay (ELISA).The IL-1β and TNF-α levels were also investigated. The degree of meniscus injury was assessed by MR imaging. The modified Mankin score was recorded to examine the cartilage histopathological alternations. Receiver operating characteristic (ROC) curve was performed to discuss the diagnostic value of PACAP levels for the prediction of the radiographic grading in comparison with IL-1β and TNF-α. RESULTS Serum PACAP levels between PTKOA patients and patellar dislocation did not reach significant differences. However, SF PACAP levels were significantly lower in PTKOA patients than controls. In addition, SF PACAP levels were negatively associated with MRI imaging grade for meniscus injury and VAS score, and were positively associated with Lysholm and IKDC scores. In addition, SF PACAP levels were negatively related to Mankin score as well as the expressions of IL-1β and TNF-α. ROC analysis curve showed that attenuated PACAP may serve as a favorable marker for the diagnosis of MRI for meniscus injury. CONCLUSIONS SF PACAP concentrations showed an independent and negative association with disease severity in PTKOA following ACL injury. Local treatment with PACAP may act as a possible adjuvant therapy for delaying the process of PTKOA.
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Affiliation(s)
- Bing-Yin Sun
- Department of Orthopedics, Shunde Hospital of Guangzhou University of Chinese Medicine (ShunDe District Hospital of Chinese Medicine of Foshan City), Foshan, Guang Dong Province, 528333, China
| | - Zheng-Ping Sun
- Department of Orthopedics, Guang Dong Province Second Hospital of Traditional Chinese Medicine, Guangzhou, Guang Dong Province, 510095, China
| | - Zu-Cai Pang
- Department of Orthopedics, Shunde Hospital of Guangzhou University of Chinese Medicine (ShunDe District Hospital of Chinese Medicine of Foshan City), Foshan, Guang Dong Province, 528333, China
| | - Wei-Tao Huang
- Department of Orthopedics, Shunde Hospital of Guangzhou University of Chinese Medicine (ShunDe District Hospital of Chinese Medicine of Foshan City), Foshan, Guang Dong Province, 528333, China
| | - Shao-Peng Wu
- Department of Orthopedics, Guang Dong Province Second Hospital of Traditional Chinese Medicine, Guangzhou, Guang Dong Province, 510095, China.
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Sun ZP, Wu SP, Liang CD, Zhao CX, Sun BY. The synovial fluid neuropeptide PACAP may act as a protective factor during disease progression of primary knee osteoarthritis and is increased following hyaluronic acid injection. Innate Immun 2019; 25:255-264. [PMID: 30935267 PMCID: PMC6830887 DOI: 10.1177/1753425919839125] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 02/25/2019] [Accepted: 02/28/2019] [Indexed: 11/15/2022] Open
Abstract
The correlation of serum and synovial fluid (SF) pituitary adenylate cyclase-activating polypeptide (PACAP) levels with disease progression of primary knee osteoarthritis (OA) was explored. Radiographic severity of OA was determined by Kellgren-Lawrence (K-L) grades. PACAP levels were measured by ELISA before treatment, and 4 and 8 wk following hyaluronic acid (HA) injection. Levels of IL-1β and MMP-3 were also detected. The numeric pain scale (NPS), revised Oxford Knee Score (OKS), and American Knee Society Score (AKSS) were employed to evaluate to symptomatic severity. Receiver-operating-characteristic (ROC) curve analysis was carried out to compare the diagnostic value of PACAP, IL-1β, and MMP-3 for the K-L grade. PACAP concentrations in SF but not serum were significantly lower in OA patients compared with controls. SF PACAP levels were negatively associated with K-L grades and higher NPS as well as worse AKSS and OKS. Further analysis demonstrated that PACAP concentration in SF was negatively correlated with expressions of IL-1β as well as MMP-3 and may act as a marker for radiographic progression along with MMP-3. Last, we found SF PACAP levels exhibited an incremental trend after HA injection. These findings confirmed the crucial role of PACAP deficiency in the development of primary knee OA.
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Affiliation(s)
- Zheng-Ping Sun
- Department of Orthopedics, Guangdong Province Second Hospital of
Traditional Chinese Medicine, Guangzhou, China
| | - Shao-Peng Wu
- Department of Orthopedics, Guangdong Province Second Hospital of
Traditional Chinese Medicine, Guangzhou, China
| | - Can-De Liang
- Department of Orthopedics, Guangdong Province Second Hospital of
Traditional Chinese Medicine, Guangzhou, China
| | - Chuan-Xi Zhao
- Department of Orthopedics, Guangdong Province Second Hospital of
Traditional Chinese Medicine, Guangzhou, China
| | - Bing-Yin Sun
- Department of Orthopedics, Shunde Hospital of Guangzhou
University of Chinese Medicine (ShunDe District Hospital of Chinese Medicine of
Foshan City), Foshan, China*The authors contributed equally to this work
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Zamarrón A, Morel E, Lucena SR, Mataix M, Pérez-Davó A, Parrado C, González S. Extract of Deschampsia antarctica (EDA) Prevents Dermal Cell Damage Induced by UV Radiation and 2,3,7,8-Tetrachlorodibenzo-p-dioxin. Int J Mol Sci 2019; 20:E1356. [PMID: 30889822 PMCID: PMC6471785 DOI: 10.3390/ijms20061356] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/11/2019] [Accepted: 03/14/2019] [Indexed: 01/03/2023] Open
Abstract
Exposure to natural and artificial light and environmental pollutants are the main factors that challenge skin homeostasis, promoting aging or even different forms of skin cancer through a variety of mechanisms that include accumulation of reactive oxygen species (ROS), engagement of DNA damage responses, and extracellular matrix (ECM) remodeling upon release of metalloproteases (MMPs). Ultraviolet A radiation is the predominant component of sunlight causative of photoaging, while ultraviolet B light is considered a potentiator of photoaging. In addition, different chemicals contribute to skin aging upon penetration through skin barrier disruption or hair follicles, aryl hydrocarbon receptors (AhR) being a major effector mechanism through which toxicity is exerted. Deschampsia antarctica is a polyextremophile Gramineae capable of thriving under extreme environmental conditions. Its aqueous extract (EDA) exhibits anti- photoaging in human skin cells, such as inhibition of MMPs, directly associated with extrinsic aging. EDA prevents cellular damage, attenuating stress responses such as autophagy and reducing cellular death induced by UV. We demonstrate that EDA also protects from dioxin-induced nuclear translocation of AhR and increases the production of loricrin, a marker of homeostasis in differentiated keratinocytes. Thus, our observations suggest a potential use exploiting EDA's protective properties in skin health supplements.
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Affiliation(s)
- Alicia Zamarrón
- Department of Biology, Faculty of Sciences, Autónoma University of Madrid, IRYCIS, 28049 Madrid, Spain.
| | - Esther Morel
- Animal Health Research Center (CISA-INIA), Valdeolmos, 28130 Madrid, Spain.
| | - Silvia Rocío Lucena
- Department of Biology, Faculty of Sciences, Autónoma University of Madrid, IRYCIS, 28049 Madrid, Spain.
- Department of Basic Health Sciences, Faculty of Health Sciences, Rey Juan Carlos University, Alcorcón, 28922 Madrid, Spain.
| | - Manuel Mataix
- Department of Biology, Faculty of Sciences, Autónoma University of Madrid, IRYCIS, 28049 Madrid, Spain.
| | | | - Concepción Parrado
- Department of Histology and Pathology, University of Málaga, 29071 Málaga, Spain.
| | - Salvador González
- Department of Medicine and Medical Specialties, Alcalá de Henares University, 28805 Madrid, Spain.
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