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Yu Y, Li R, Yu X, Hu Y, Liao Z, Li W. Immuno-protective effect of neuropeptide Y immersion on the juvenile tilapia infected by Streptococcus agalactiae. FISH & SHELLFISH IMMUNOLOGY 2023; 141:109072. [PMID: 37709180 DOI: 10.1016/j.fsi.2023.109072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/29/2023] [Accepted: 09/09/2023] [Indexed: 09/16/2023]
Abstract
Neuropeptide Y (NPY), an important neurotransmitter, is widely distributed in the nervous systems of vertebrates. Multiple functions of NPY in mammals include the regulation of brain activity, emotion, stress response, feeding, digestion, metabolism and immune function. In the present study, we used synthetic NPY to immerse juvenile tilapia, thus firstly exploring the dose and time effect of this immersion. The results showed that the expression level of y8b and serum glucose increased after NPY immersion. When juvenile tilapia was challenged with Streptococcus agalactiae (S. agalactiae), no matter before or after the administration of NPY-immersion, it was found that NPY immersion could inhibit the expression of il-1β induced by S. agalactiae in telencephalon, hypothalamus, spleen and head kidney, and then promote the expression of il-10. In addition, NPY-immersion could reduce the activity of serum SOD but increase that of lysozyme, and ameliorate tissue damage in the head kidney and spleen of juvenile tilapia caused by S. agalactiae infection. This study firstly proposes the potential of NPY to be an immune protect factor in juvenile fish, and the results can provide a reference for the application of immersion administration in the immune protection of juvenile fish.
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Affiliation(s)
- Yang Yu
- State Key Laboratory of Biocontrol, Guangdong Province Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China.
| | - Ruoyun Li
- State Key Laboratory of Biocontrol, Guangdong Province Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China.
| | - Xiaozheng Yu
- State Key Laboratory of Biocontrol, Guangdong Province Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China.
| | - Yongqi Hu
- State Key Laboratory of Biocontrol, Guangdong Province Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China.
| | - Zongzhen Liao
- State Key Laboratory of Biocontrol, Guangdong Province Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China.
| | - Wensheng Li
- State Key Laboratory of Biocontrol, Guangdong Province Key Laboratory for Aquatic Economic Animals, Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China.
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Martinez R, Fernández-Trujillo MA, Hernández L, Page A, Béjar J, Estrada MP. Growth hormone secretagogue peptide A233 upregulates Mx expression in teleost fish in vitro and in vivo. Arch Virol 2022; 167:2041-2047. [DOI: 10.1007/s00705-022-05504-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 05/05/2022] [Indexed: 11/27/2022]
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Feed Supplementation with the GHRP-6 Peptide, a Ghrelin Analog, Improves Feed Intake, Growth Performance and Aerobic Metabolism in the Gilthead Sea Bream Sparus aurata. FISHES 2022. [DOI: 10.3390/fishes7010031] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The aquaculture sector has experienced rapid and important growth with the subsequent increase of feeding and nutritional issues for sustaining this activity, mainly related to the use of high quality, safe and environmentally friendly feed ingredients. The use of additives in aquafeeds has proven to be a suitable option to improve different productive indicators in farmed fish. In the present study, the effect of adding the GHRP-6 peptide, a ghrelin analog, to a commercial diet of gilthead sea bream (Sparus aurata) was studied at two proportions (100 or 500 μg/kg of feed). Both experimental diets show an increase in growth performance, as well as in feed efficiency after 97 days of experiment. The lower inclusion of GHRP-6 (100 μg/kg) results in a better aerobic metabolism, while the higher inclusion significantly increased plasma GH levels in agreement with the GH secretagogue effects of ghrelin. Similar growth outcome and differences between GHRP-6 levels in aerobic metabolism and GH stimulation suggest that improvements in culture performance by this peptide may occur through different mechanisms. Taken together, this compound can be considered as a viable dietary supplement for increasing production efficiency of sea bream aquaculture, although a better understanding of its dose-specific effects is still required.
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Hernández L, Camacho H, Nuñez-Robainas A, Palenzuela DO, Morales A, Basabe L, Herrera F, Rodrigo O, Rodriguez-Gabilondo A, Velázquez J, Piloto S, Estrada MP, Martínez R. Growth hormone secretagogue peptide-6 enhances oreochromicins transcription and antimicrobial activity in tilapia (Oreochromis sp.). FISH & SHELLFISH IMMUNOLOGY 2021; 119:508-515. [PMID: 34592474 DOI: 10.1016/j.fsi.2021.08.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 08/09/2021] [Accepted: 08/16/2021] [Indexed: 06/13/2023]
Abstract
Growth Hormone-Releasing Peptide 6 (GHRP-6) (His-(D-Trp)-Ala-Trp-(D-Phe)-Lys-NH2) is an agonist of the growth hormone secretagogue receptor. GHRP-6 mimics the effect of ghrelin. The present study focuses on the immunomodulatory effects of GHRP-6 in tilapia with and without the presence of Pseudomonas aeruginosa infection. GHRP-6 up-regulated the transcription levels of three piscidin-like antimicrobial peptides (Oreochromicins I, II, and III) and granzyme in a tissue-dependent manner. Antimicrobial activity stimulation in serum (lysozyme and anti-protease activity) was also confirmed. Besides, GHRP-6 enhanced the in vitro antimicrobial activity against P. aeruginosa in tilapia gills mucus and serum samples and decreased the bacterial load in vivo after infection with this Gram-negative bacterium. Our results evidenced, for the first time, a direct link between a growth hormone secretagogue ghrelin mimetic in fish and the enhancement of antimicrobial peptides transcription, which suggests that this secretagogue is capable to lead the activation of microbicidal activity in tilapia. Thus, these results open new possibilities for GHRP-6 application in aquaculture to stimulate the teleost immune system as an alternative treatment against opportunistic bacteria.
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Affiliation(s)
- Liz Hernández
- Metabolic Modifiers for Aquaculture, Agricultural Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Hanlet Camacho
- Pharmacogenomics Project, Systems Biology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Adriana Nuñez-Robainas
- Metabolic Modifiers for Aquaculture, Agricultural Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Daniel O Palenzuela
- Pharmacogenomics Project, Systems Biology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Antonio Morales
- Metabolic Modifiers for Aquaculture, Agricultural Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Liliana Basabe
- Metabolic Modifiers for Aquaculture, Agricultural Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Fidel Herrera
- Metabolic Modifiers for Aquaculture, Agricultural Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Osmany Rodrigo
- Metabolic Modifiers for Aquaculture, Agricultural Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Adrian Rodriguez-Gabilondo
- Metabolic Modifiers for Aquaculture, Agricultural Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Janet Velázquez
- Veterinary Immunology Project, Agricultural Biotechnology Department, CIGB, Havana, Cuba
| | - Soraya Piloto
- Microbiology Laboratory, Quality Control Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Mario P Estrada
- Metabolic Modifiers for Aquaculture, Agricultural Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba.
| | - Rebeca Martínez
- Metabolic Modifiers for Aquaculture, Agricultural Biotechnology Department, Center for Genetic Engineering and Biotechnology, Havana, Cuba.
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de la Nuez Veulens A, Rodríguez Fernández RE, Álvarez Ginarte YM, Montero Cabrera LA. In silico strategy for detailing the binding modes of a novel family of peptides proven as ghrelin receptor agonists. J Mol Model 2020; 26:294. [PMID: 33015729 DOI: 10.1007/s00894-020-04553-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 09/17/2020] [Indexed: 11/26/2022]
Abstract
Ghrelin is a peptide hormone involved in multiple functions, including growth hormone release stimulation, food intake regulation, and metabolic and cytoprotective effect. A novel family of peptides with internal cycles was designed as ghrelin analogs and the biological activity of two of them (A228 and A233) was experimentally studied in-depth. In this work, an in silico strategy was developed for describing and assessing the binding modes of A228 and A233 to GHS-R1a (ghrelin receptor) comparing it with ghrelin and GHRP-6 peptides. Several reported structures of different G protein coupled receptors were used as templates, to obtain a good quality model of GHS-R1a. The best model was selected by preliminary molecular docking with ghrelin and GHRP-6. Docking was used to estimate peptide orientations in the binding site of the best model, observing a superposition of its N-terminal and its first aromatic residue. To test the complex stability in time, the C-terminal fragments of each peptide were added and the complexes were inserted a 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) membrane, performing a molecular dynamic simulation for 100 ns using the CHARMM36 force field. Despite of the structural differences, the studied peptides share a common binding mode; the N-terminal interacts with E124 and the aromatic residue close to it, with the aromatic cluster (F279, F309, and F312). A preliminary pharmacophore model, consisting in a positive charged amine and an aromatic ring at an approximate distance of 0.79 nm, can be proposed. The results here described could represent a step forward in the efficient search of new ghrelin analogs.
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Affiliation(s)
| | | | - Yoanna M Álvarez Ginarte
- Laboratory of Theoretical and Computational Chemistry, Faculty of Chemistry, University of Havana, Havana, Cuba
| | - Luis A Montero Cabrera
- Laboratory of Theoretical and Computational Chemistry, Faculty of Chemistry, University of Havana, Havana, Cuba.
- Department of Chemistry, Johns Hopkins University, Baltimore, MD, USA.
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Martínez R, Morales C, Arenal A, Morales A, Herrera F, González V, Estrada MP. Growth Hormone Secretagogue (A233) Improves Growth and Changes the Tissue Fatty Acid Profile in Juvenile Tilapia (Oreochromis niloticus
). Lipids 2018; 53:429-436. [DOI: 10.1002/lipd.12003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 10/04/2017] [Accepted: 10/04/2017] [Indexed: 12/29/2022]
Affiliation(s)
- Rebeca Martínez
- Aquatic Biotechnology Department, Biotechnology Animal Division; CIGB; Habana Cuba
| | - Carmen Morales
- Centro de Productos Naturales; Calle 198 entre 19 y 21, Atabey, Playa, Habana Cuba
| | - Amilcar Arenal
- Department of Morpho-Physiology; University of Camagüey Ignacio Agramonte Loynaz; Km 5½, Camagüey 74650 Cuba
| | - Antonio Morales
- Aquatic Biotechnology Department, Biotechnology Animal Division; CIGB; Habana Cuba
| | - Fidel Herrera
- Aquatic Biotechnology Department, Biotechnology Animal Division; CIGB; Habana Cuba
| | - Víctor González
- Centro de Productos Naturales; Calle 198 entre 19 y 21, Atabey, Playa, Habana Cuba
| | - Mario Pablo Estrada
- Aquatic Biotechnology Department, Biotechnology Animal Division; CIGB; Habana Cuba
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Martínez R, Hernández L, Gil L, Carpio Y, Morales A, Herrera F, Rodríguez-Mallón A, Leal Y, Blanco A, Estrada MP. Growth hormone releasing peptide-6 enhanced antibody titers against subunit antigens in mice (BALB/c), tilapia ( Oreochromis niloticus ) and African catfish ( Clarias gariepinus ). Vaccine 2017; 35:5722-5728. [DOI: 10.1016/j.vaccine.2017.07.060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 06/20/2017] [Accepted: 07/18/2017] [Indexed: 02/05/2023]
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Verburg-van Kemenade BML, Cohen N, Chadzinska M. Neuroendocrine-immune interaction: Evolutionarily conserved mechanisms that maintain allostasis in an ever-changing environment. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2017; 66:2-23. [PMID: 27296493 DOI: 10.1016/j.dci.2016.05.015] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 05/23/2016] [Accepted: 05/23/2016] [Indexed: 05/02/2023]
Abstract
It has now become accepted that the immune system and neuroendocrine system form an integrated part of our physiology. Immunological defense mechanisms act in concert with physiological processes like growth and reproduction, energy intake and metabolism, as well as neuronal development. Not only are psychological and environmental stressors communicated to the immune system, but also, vice versa, the immune response and adaptation to a current pathogen challenge are communicated to the entire body, including the brain, to evoke adaptive responses (e.g., fever, sickness behavior) that ensure allocation of energy to fight the pathogen. This phenomenon is evolutionarily conserved. Hence it is both interesting and important to consider the evolutionary history of this bi-directional neuroendocrine-immune communication to reveal phylogenetically ancient or relatively recently acquired mechanisms. Indeed, such considerations have already disclosed an extensive "common vocabulary" of information pathways as well as molecules and their receptors used by both the neuroendocrine and immune systems. This review focuses on the principal mechanisms of bi-directional communication and the evidence for evolutionary conservation of the important physiological pathways involved.
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Affiliation(s)
- B M Lidy Verburg-van Kemenade
- Cell Biology and Immunology Group, Dept. of Animal Sciences, Wageningen University, P.O. Box 338, 6700 AH Wageningen, The Netherlands.
| | - Nicholas Cohen
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY 14620, USA
| | - Magdalena Chadzinska
- Department of Evolutionary Immunology, Institute of Zoology, Jagiellonian University, Gronostajowa 9, PL30-387 Krakow, Poland
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Comparative proteomic analysis of growth hormone secretagogue A233 treatment of murine macrophage cells J774A.2 indicates it has a role in antiviral innate response. Biochem Biophys Rep 2016; 5:379-387. [PMID: 28955845 PMCID: PMC5600417 DOI: 10.1016/j.bbrep.2016.01.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 12/18/2015] [Accepted: 01/12/2016] [Indexed: 11/21/2022] Open
Abstract
Background Growth hormone secretagogues (GHS), among other factors, regulate the release of GH. The biological activity of the secretagogue peptide A233 as a promoter of growth and innate immunity in teleost fish has previously been demonstrated, but its role in the immune system of mammals is not well understood. Methods The effect of the peptide was investigated in J774A.2 macrophage cells using a comparative proteomics approach after 6 and 12 h of peptide stimulation. Results The functional analysis of differentially modulated proteins showed that A233 peptide treatment appears to promote activation and ROS-dependent cytotoxic functions in macrophages and enhanced expression of antiviral protein complexes such as MAVS. In accordance with this hypothesis, we found that A233 treatment enhanced superoxide anion production and the IFN-γ level in J774A.2 cells and mouse splenocytes, respectively, and reduced viral load in a dengue virus mouse model of infection. Conclusions The growth hormone secretagogue A233 peptide promotes activation of ROS-dependent cytotoxic functions and exerts immunomodulatory effects that enable an antiviral state in a dengue virus mouse model. General Significance The increase of IFN-γ level and the differential modulation of antiviral proteins by the A233 peptide suggest that the molecule could activate an innate immune response with a possible further impact in the treatment of acute and chronic diseases. Peptide treatment increases superoxide anion production in J774 macrophage cells. A233 peptide treatment increases INF-γ levels in mouse splenocytes. Mice treated with A233 significantly reduce viral load after challenge with DENV-3. Peptide treatment may activates cytotoxic functions and exert an antiviral effect.
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