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Mota GAF, de Souza SLB, Vileigas DF, da Silva VL, Sant'Ana PG, Costa LCDS, Padovani CR, Zanatti Bazan SG, Buzalaf MAR, Santos LDD, Okoshi MP, Gatto M, Cicogna AC. Myocardial proteome changes in aortic stenosis rats subjected to long-term aerobic exercise. J Cell Physiol 2024; 239:e31199. [PMID: 38291668 DOI: 10.1002/jcp.31199] [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: 05/15/2023] [Revised: 01/08/2024] [Accepted: 01/12/2024] [Indexed: 02/01/2024]
Abstract
The effects of exercise training (ET) on the heart of aortic stenosis (AS) rats are controversial and the mechanisms involved in alterations induced by ET have been poorly clarified. In this study, we analyzed the myocardial proteome to identify proteins modulated by moderate-intensity aerobic ET in rats with chronic supravalvular AS. Wistar rats were divided into four groups: sedentary control (C-Sed), exercised control (C-Ex), sedentary aortic stenosis (AS-Sed), and exercised AS (AS-Ex). ET consisted of five treadmill running sessions per week for 16 weeks. Statistical analysis was performed by ANOVA or Kruskal-Wallis and Goodman tests. Results were discussed at a significance level of 5%. At the end of the experiment, AS-Ex rats had higher functional capacity, lower blood lactate concentration, and better cardiac structural and left ventricular (LV) functional parameters than the AS-Sed. Myocardial proteome analysis showed that AS-Sed had higher relative protein abundance related to the glycolytic pathway, oxidative stress, and inflammation, and lower relative protein abundance related to beta-oxidation than C-Sed. AS-Ex had higher abundance of one protein related to mitochondrial biogenesis and lower relative protein abundance associated with oxidative stress and inflammation than AS-Sed. Proteomic data were validated for proteins related to lipid and glycolytic metabolism. Chronic pressure overload changes the abundance of myocardial proteins that are mainly involved in lipid and glycolytic energy metabolism in rats. Moderate-intensity aerobic training attenuates changes in proteins related to oxidative stress and inflammation and increases the COX4I1 protein, related to mitochondrial biogenesis. Protein changes are combined with improved functional capacity, cardiac remodeling, and LV function in AS rats.
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Affiliation(s)
- Gustavo Augusto Ferreira Mota
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University, UNESP, São Paulo, São Paulo, Brazil
| | - Sérgio Luiz Borges de Souza
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University, UNESP, São Paulo, São Paulo, Brazil
| | | | - Vitor Loureiro da Silva
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University, UNESP, São Paulo, São Paulo, Brazil
| | - Paula Grippa Sant'Ana
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University, UNESP, São Paulo, São Paulo, Brazil
| | - Licia Carla da Silva Costa
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, UNICAMP, Campinas, São Paulo, Brazil
| | - Carlos Roberto Padovani
- Department of Biostatistics, Institute of Bioscience, São Paulo State University, Botucatu, São Paulo, Brazil
| | - Silméia Garcia Zanatti Bazan
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University, UNESP, São Paulo, São Paulo, Brazil
| | | | | | - Marina Politi Okoshi
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University, UNESP, São Paulo, São Paulo, Brazil
| | - Mariana Gatto
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University, UNESP, São Paulo, São Paulo, Brazil
| | - Antonio Carlos Cicogna
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University, UNESP, São Paulo, São Paulo, Brazil
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Wu S, Zhao W, Yu Z. Novel Targets and Potential Mechanisms of Mizuhopecten yessoensis-Derived Tripeptide NCW as Antihypertensive Peptides. Mol Nutr Food Res 2024:e2300552. [PMID: 38366946 DOI: 10.1002/mnfr.202300552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/07/2023] [Indexed: 02/19/2024]
Abstract
SCOPE Mizuhopecten yessoensis-derived tripeptide Asn-Cys-Trp (NCW) exhibits a potent antihypertensive effect in vivo. However, a lack of knowledge of the antihypertensive mechanism of tripeptide NCW limits its application for functional foods industrialization. The purpose of this study is to elucidate the corresponding targets and mechanisms of tripeptide NCW in hypertension regulation. METHODS AND RESULTS Administration of tripeptide NCW for 3 weeks, the blood pressure of spontaneously hypertensive rats (SHRs) is significantly decreased. After sacrifice, the serum sample is analyzed using tandem mass tag (TMT)-based liquid chromatography with tandem mass spectrometry to identify differentially expressed proteins. The proteomic analysis indicates that tripeptide NCW administration alters serum protein profiles in SHR rats, significantly upregulating 106 proteins and downregulating 30 proteins. These proteins enhance the glycolysis, glucose, and TCA cycle, improve amino metabolism, trigger the cAMP/PKA, cGMP/PKG, PI3K/AKT, and AMPK signal pathways, and inhibit Ras-regulated JNK activation, TGF-β/MAPK, and TGF-β/ RhoA/ROCK pathways. CONCLUSION Tripeptide NCW supplementation is demonstrated to regulate signal pathways involved in the control of blood pressure and regulate the energy and amino acids metabolic processes in serum, providing important insights into the protective effects of tripeptide NCW on hypertension.
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Affiliation(s)
- Sijia Wu
- School of Food Science and Engineering, Hainan University, Haikou, 570228, P.R. China
- College of Food Science and Engineering, Jilin University, Changchun, 130062, P.R. China
| | - Wenzhu Zhao
- School of Food Science and Engineering, Hainan University, Haikou, 570228, P.R. China
| | - Zhipeng Yu
- School of Food Science and Engineering, Hainan University, Haikou, 570228, P.R. China
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Proteomic analysis of human dental pulp in different clinical diagnosis. Clin Oral Investig 2020; 25:3285-3295. [PMID: 33159586 DOI: 10.1007/s00784-020-03660-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 10/27/2020] [Indexed: 01/20/2023]
Abstract
OBJECTIVES The present study aimed to identify proteins obtained from pulp tissue and correlate with each clinical diagnosis (healthy pulp, inflamed pulp, and necrotic pulp). MATERIALS AND METHODS A total of forty-five molars were used. Three biological replicas were evaluated. Lysis and sonication were used for protein extraction. Protein quantification was assessed by using the Bradford technique, and shotgun proteome analysis was performed by nanoUPLC-MSE using a Synapt G2 mass spectrometer. Mass spectra data were processed using the Waters PLGS software, and protein identification was done using the human Uniprot database appended to the PLGS search engine. RESULTS A total of 123 different proteins were identified in all evaluated pulp conditions. Among these, 66 proteins were observed for healthy pulp, 66 for inflamed pulp, and 91 for necrotic pulp. Most protein identification was related to immune response, multi-organism process, platelet activation, and stress in inflamed pulp samples compared to healthy pulp. Proteins related to cellular component organization or biogenesis, developmental process, growth, immune response, multi-organism process, response to stimulus, signaling, stress, and transport were identified in cases of apical periodontitis compared to inflamed pulp. CONCLUSIONS The progression of the disease to inflamed pulp promoted a high abundance of proteins related to the immune system and stress. Comparing the necrotic pulp with inflamed pulp conditions, a high abundance of proteins was noticed related to metabolism, transport, and response between organisms. CLINICAL RELEVANCE This finding may assist in future studies of new markers, understanding of tissue engineering, and development of future products.
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Paternal Resistance Training Induced Modifications in the Left Ventricle Proteome Independent of Offspring Diet. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5603580. [PMID: 32454941 PMCID: PMC7218999 DOI: 10.1155/2020/5603580] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 12/18/2019] [Indexed: 01/13/2023]
Abstract
Ancestral obesogenic exposure is able to trigger harmful effects in the offspring left ventricle (LV) which could lead to cardiovascular diseases. However, the impact of the father's lifestyle on the offspring LV is largely unexplored. The aim of this study was to investigate the effects of 8 weeks of paternal resistance training (RT) on the offspring left ventricle (LV) proteome exposed to control or high-fat (HF) diet. Wistar rats were randomly divided into two groups: sedentary fathers and trained fathers (8 weeks, 3 times per week with weights secured to the animals' tails). The offspring were obtained by mating with sedentary females. Upon weaning, male offspring were divided into 4 groups (5 animals per group): offspring from sedentary fathers, exposed to control diet (SFO-C); offspring from trained fathers, exposed to control diet (TFO-C); offspring from sedentary fathers, exposed to high-fat diet (SFO-HF); and offspring from trained fathers, exposed to high-fat diet (TFO-HF). The LC-MS/MS analysis revealed 537 regulated proteins among groups. Offspring exposure to HF diet caused reduction in the abundance levels of proteins related to cell component organization, metabolic processes, and transport. Proteins related to antioxidant activity, transport, and transcription regulation were increased in TFO-C and TFO-HF as compared with the SFO-C and SFO-HF groups. Paternal RT demonstrated to be an important intervention capable of inducing significant effects on the LV proteome regardless of offspring diet due to the increase of proteins involved into LV homeostasis maintenance. This study contributes to a better understanding of the molecular aspects involved in transgenerational inheritance.
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Martins AC, Mehta A, Murad AM, Mota AP, Saraiva MA, Araújo AC, Miller RN, Brasileiro AC, Guimarães PM. Proteomics unravels new candidate genes for Meloidogyne resistance in wild Arachis. J Proteomics 2020; 217:103690. [DOI: 10.1016/j.jprot.2020.103690] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 01/29/2020] [Accepted: 02/14/2020] [Indexed: 02/06/2023]
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Swim training attenuates the adverse remodeling of LV structural and mechanical properties in the early compensated phase of hypertension. Life Sci 2017; 187:42-49. [PMID: 28823565 DOI: 10.1016/j.lfs.2017.08.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 07/27/2017] [Accepted: 08/11/2017] [Indexed: 12/24/2022]
Abstract
AIM Investigate to what extent low-intensity swim training for six weeks counterbalances the adverse remodeling due to the advance of pathological hypertrophy in the left ventricle (LV) structural and mechanical properties in the early compensated phase of hypertension in male SHR. MAIN METHODS Four-month-old male SHR and Wistar rats were randomly divided into Sed (sedentary) and Ex (exercised) groups. The exercised rats were submitted to a swimming protocol (1h/day, 5times/week, no additional load) for six weeks. LV tissue and isolated myocytes were used to assess structural and mechanical properties. Myocytes were stimulted at frequencies (F) of 1 and 3Hz at 37°C. KEY FINDINGS Exercised SHR showed improvement in cardiovascular parameters compared to sedentary SHR (mean arterial pressure: 13.22%; resting HR: 14.28.%). About structural and mechanical properties, swim training induced a decrease in LV myocyte thickness (10.85%), number of inflammatory cells (21.24%); collagen type III (74.23%) and type I (85.6%) fiber areas; amplitude of single myocyte shortening (47% to F1 and 28.46% to F3), timecourses of shortening (16.5% to F1 and 7.55% to F3) and relaxation (15.31% to F3) compared to sedentary SHR. SIGNIFICANCE Six weeks of swim training attenuates the adverse remodeling of LV structural and mechanical properties in the early compensated phase of hypertension in male SHR.
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Santos C, Maximiano MR, Ribeiro DG, Oliveira-Neto OB, Murad AM, Franco OL, Mehta A. Differential accumulation ofXanthomonas campestrispv.campestrisproteins during the interaction with the host plant: Contributions of an in vivo system. Proteomics 2017; 17. [DOI: 10.1002/pmic.201700086] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 04/18/2017] [Accepted: 04/28/2017] [Indexed: 01/28/2023]
Affiliation(s)
- Cristiane Santos
- Embrapa Recursos Genéticos e Biotecnologia; Brasília DF Brazil
- Centro de Analises Proteômicas e Bioquímicas, Pós-Graduação em Ciências Genômicas e Biotecnologia; Universidade Católica de Brasília; Brasília DF Brazil
| | - Mariana R. Maximiano
- Embrapa Recursos Genéticos e Biotecnologia; Brasília DF Brazil
- Universidade Federal de Juiz de Fora; MG Brazil
| | - Daiane G. Ribeiro
- Embrapa Recursos Genéticos e Biotecnologia; Brasília DF Brazil
- Universidade Paulista; Brasília DF Brazil
| | | | - André M. Murad
- Embrapa Recursos Genéticos e Biotecnologia; Brasília DF Brazil
| | - Octávio L. Franco
- Centro de Analises Proteômicas e Bioquímicas, Pós-Graduação em Ciências Genômicas e Biotecnologia; Universidade Católica de Brasília; Brasília DF Brazil
- Universidade Federal de Juiz de Fora; MG Brazil
- S-Inova, Pós-Graduação em Biotecnologia; Universidade Católica Dom Bosco; Campo Grande MS Brazil
| | - Angela Mehta
- Embrapa Recursos Genéticos e Biotecnologia; Brasília DF Brazil
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Petriz BA, Franco OL. Metaproteomics as a Complementary Approach to Gut Microbiota in Health and Disease. Front Chem 2017; 5:4. [PMID: 28184370 PMCID: PMC5266679 DOI: 10.3389/fchem.2017.00004] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 01/13/2017] [Indexed: 12/20/2022] Open
Abstract
Classic studies on phylotype profiling are limited to the identification of microbial constituents, where information is lacking about the molecular interaction of these bacterial communities with the host genome and the possible outcomes in host biology. A range of OMICs approaches have provided great progress linking the microbiota to health and disease. However, the investigation of this context through proteomic mass spectrometry-based tools is still being improved. Therefore, metaproteomics or community proteogenomics has emerged as a complementary approach to metagenomic data, as a field in proteomics aiming to perform large-scale characterization of proteins from environmental microbiota, such as the human gut. The advances in molecular separation methods coupled with mass spectrometry (e.g., LC-MS/MS) and proteome bioinformatics have been fundamental in these novel large-scale metaproteomic studies, which have further been performed in a wide range of samples including soil, plant and human environments. Metaproteomic studies will make major progress if a comprehensive database covering the genes and expresses proteins from all gut microbial species is developed. To this end, we here present some of the main limitations of metaproteomic studies in complex microbiota environments, such as the gut, also addressing the up-to-date pipelines in sample preparation prior to fractionation/separation and mass spectrometry analysis. In addition, a novel approach to the limitations of metagenomic databases is also discussed. Finally, prospects are addressed regarding the application of metaproteomic analysis using a unified host-microbiome gene database and other meta-OMICs platforms.
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Affiliation(s)
- Bernardo A Petriz
- Department of Health, Molecular and Physiologic Adaptations to Exercise, Centro Universitário do Distrito Federal Brasília, Brazil
| | - Octávio L Franco
- S-Inova Biotech, Universidade Católica Dom Bosco Campo Grande, Brazil
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Carmo LST, Murad AM, Resende RO, Boiteux LS, Ribeiro SG, Jorrín-Novo JV, Mehta A. Plant responses to tomato chlorotic mottle virus: Proteomic view of the resistance mechanisms to a bipartite begomovirus in tomato. J Proteomics 2016; 151:284-292. [PMID: 27457268 DOI: 10.1016/j.jprot.2016.07.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 07/17/2016] [Accepted: 07/18/2016] [Indexed: 12/27/2022]
Abstract
Tomato chlorotic mottle virus (ToCMoV) is a widespread bipartite Begomovirus species found in tomato fields in Brazil. In this study, plant responses and putative mechanisms associated with the 'Tyking'-derived recessive resistance to ToCMoV were investigated. Changes in the protein profile in the inoculated plants of two near isogenic tomato lines resistant ('LAM 157') and susceptible ('Santa Clara') to ToCMoV were analyzed. Seedlings were biolistically inoculated with an infectious ToCMoV clone. Leaves from infected plants (confirmed by PCR) were sampled at 15days after inoculation. Proteins were extracted using phenol and analyzed by shotgun MS (2D-nanoUPLC/HDMSE). Out of the 534 identified proteins, 82 presented statistically significant differences in abundance, including 35 unique proteins displayed in the resistant tomato inoculated with ToCMoV. Proteins associated to chromatin structure, cytoskeleton structure, cuticle biosynthesis, and ubiquitin pathway were identified and their putative roles during virus infection process were discussed. The protein profile analysis allowed for the development of a hypothetical model showing how the resistant host cell responds to ToCMoV infection. The data obtained provide a better understanding of resistant mechanisms used by the host plant to contain viral infection and could be the basis for further investigation in other plant-begomovirus pathosystems. BIOLOGICAL SIGNIFICANCE In this study we propose a model of resistance to begomovirus in tomato and highlight host proteins, which could be targets for future investigations in plant-begomovirus pathosystems.
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Affiliation(s)
- Lílian S T Carmo
- Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, Brazil; Departamento de Biologia Celular, Instituto de Biologia, Universidade de Brasília, Brasília, DF, Brazil
| | - André M Murad
- Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, Brazil
| | - Renato O Resende
- Departamento de Biologia Celular, Instituto de Biologia, Universidade de Brasília, Brasília, DF, Brazil
| | | | - Simone G Ribeiro
- Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, Brazil
| | | | - Angela Mehta
- Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, Brazil.
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Rocha LADO, Oliveira KS, Migliolo L, Franco OL. Effect of Moderate Exercise on Mitochondrial Proteome in Heart Tissue of Spontaneous Hypertensive Rats. Am J Hypertens 2016; 29:696-704. [PMID: 26391256 DOI: 10.1093/ajh/hpv160] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 08/19/2015] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Hypertension is a multifactorial disease and an important independent risk factor for cardiovascular diseases. Exercise training is one of the most important non-pharmacological therapeutic strategies for treating hypertension; however, mitochondrial adaptations in the hypertensive heart as a result of exercise remain obscure. METHODS Aiming to explore the effects of exercise training of moderate intensity on the mitochondrial proteome in hypertensive animal models before and after the pathology developed, 20 isogenic male spontaneous hypertensive rats (SHRs) were randomly divided into 2 groups, 1 with animals of 6 and 40 weeks of age. Animals were submitted to exercise training on a treadmill for 30 minutes, 5 days per week for 4 weeks at 90% of the anaerobic threshold (AT). A mitochondrial sample extract from the left ventricle was prepared and further analyzed using LC-MS/MS. RESULTS Proteomics analyses led to the identification of 143 proteins in all groups. The data showed a considerable and clear increase in the abundance of NADH dehydrogenase and ATP synthase, as well as voltage-dependent anion channel (VDAC) type 1 decrease in exercise groups. When exercise effects were compared, differential proteins expressed only in exercise increased, such as cytochrome c oxidase, alcohol dehydrogenase, and NADH dehydrogenase [ubiquinone] 1 alpha subcomplex. CONCLUSIONS The results support the proposition that moderate exercise induces a beneficial adaptation in left ventricle myocardial mitochondria in order to attenuate the decrease in ATP production in hypertensive models.
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Affiliation(s)
- Luiz Antonio de Oliveira Rocha
- Curso de Educação Física, Universidade Católica de Brasilia, Brasília, DF, Brazil; Curso de pós-graduação em Patologia Molecular, Universidade de Brasília, Brasília, DF, Brazil; Centro de Analises Proteomicas e Bioquimicas, Curso de Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil
| | - Kleber Souza Oliveira
- Centro de Analises Proteomicas e Bioquimicas, Curso de Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil; S-Inova Biotech, Pós-Graduação em Biotecnologia, Universidade Catolica Dom Bosco, Campo Grande, MS, Brazil
| | - Ludovico Migliolo
- Centro de Analises Proteomicas e Bioquimicas, Curso de Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil; S-Inova Biotech, Pós-Graduação em Biotecnologia, Universidade Catolica Dom Bosco, Campo Grande, MS, Brazil
| | - Octavio Luiz Franco
- Curso de pós-graduação em Patologia Molecular, Universidade de Brasília, Brasília, DF, Brazil; Centro de Analises Proteomicas e Bioquimicas, Curso de Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, DF, Brazil; S-Inova Biotech, Pós-Graduação em Biotecnologia, Universidade Catolica Dom Bosco, Campo Grande, MS, Brazil.
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The Effect of Weight Loss on the Muscle Proteome in the Damara, Dorper and Australian Merino Ovine Breeds. PLoS One 2016; 11:e0146367. [PMID: 26828937 PMCID: PMC4734549 DOI: 10.1371/journal.pone.0146367] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 12/16/2015] [Indexed: 11/20/2022] Open
Abstract
Seasonal Weight Loss (SWL) is an important constraint, limiting animal production in the Tropics and the Mediterranean. As a result, the study of physiological and biochemical mechanisms by which domestic animal breeds respond to SWL is important to those interested in animal breeding and the improvement thereof. To that end, the study of the proteome has been instrumental in gathering important information on physiological mechanisms, including those underlying SWL. In spite of that, little information is available concerning physiological mechanisms of SWL in production animals. The objective of this study was to determine differential protein expression in the muscle of three different breeds of sheep, the Australian Merino, the Dorper and the Damara, each showing different levels of tolerance to weight loss (low, medium and high, respectively). Per breed, two experimental groups were established, one labeled “Growth” and the other labeled “Restricted.” After forty-two days of dietary treatment, all animals were euthanized. Muscle samples were then taken. Total protein was extracted from the muscle, then quantified and two-dimensional gel electrophoresis were conducted using 24 cm pH 3–10 immobiline dry strips and colloidal coomassie staining. Gels were analyzed using Samespots® software and spots of interest were in-gel digested with trypsin. The isolated proteins were identified using MALDI-TOF/TOF. Results indicated relevant differences between breeds; several proteins are suggested as putative biomarkers of tolerance to weight loss: Desmin, Troponin T, Phosphoglucomutase and the Histidine Triad nucleotide-binding protein 1. This information is of relevance to and of possible use in selection programs aiming towards ruminant animal production in regions prone to droughts and weight loss.
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Freire MS, Cantuária APC, Lima SM, Almeida JA, Murad AM, Franco OL, Rezende TM. NanoUPLC-MSE proteomic analysis of osteoclastogenesis downregulation by IL-4. J Proteomics 2016; 131:8-16. [DOI: 10.1016/j.jprot.2015.10.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 09/01/2015] [Accepted: 10/01/2015] [Indexed: 11/15/2022]
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