1
|
Ispada J, Rodrigues TA, Risolia PHB, Lima RS, Gonçalves DR, Rettori D, Nichi M, Feitosa WB, Paula-Lopes FF. Astaxanthin counteracts the effects of heat shock on the maturation of bovine oocytes. Reprod Fertil Dev 2018; 30:1169-1179. [DOI: 10.1071/rd17271] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 01/31/2018] [Indexed: 12/22/2022] Open
Abstract
The cellular mechanisms induced by elevated temperature on oocytes are not fully understood. However, there is evidence that some of the deleterious effects of heat shock are mediated by a heat-induced increase in reactive oxygen species (ROS). In this context, carotenoid antioxidants might have a thermoprotective effect. Therefore, the objective of this study was to determine the role of astaxanthin (AST) on oocyte ROS production and on the redox profile and developmental competency of cumulus-oocyte complexes (COCs) after 14 h heat shock (41°C) during in vitro maturation (IVM). Exposure of oocytes to heat shock during IVM increased ROS and reduced the ability of the oocyte to cleave and develop to the blastocyst stage. However, 12.5 and 25 nM astaxanthin rescued these negative effects of heat shock; astaxanthin counteracted the heat shock-induced increase in ROS and restored oocyte developmental competency. There was no effect of astaxanthin on maturation medium lipid peroxidation or on glutathione peroxidase and catalase activity in oocytes and cumulus cells. However, astaxanthin stimulated superoxide dismutase (SOD) activity in heat-shocked cumulus cells. In conclusion, direct heat shock reduced oocyte competence, which was restored by astaxanthin, possibly through regulation of ROS and SOD activity in oocytes and COCs.
Collapse
|
2
|
Serena G, Yan S, Camhi S, Patel S, Lima RS, Sapone A, Leonard MM, Mukherjee R, Nath BJ, Lammers KM, Fasano A. Proinflammatory cytokine interferon-γ and microbiome-derived metabolites dictate epigenetic switch between forkhead box protein 3 isoforms in coeliac disease. Clin Exp Immunol 2017; 187:490-506. [PMID: 27936497 DOI: 10.1111/cei.12911] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 11/16/2016] [Accepted: 11/17/2016] [Indexed: 12/21/2022] Open
Abstract
Coeliac disease (CD) is an autoimmune enteropathy triggered by gluten and characterized by a strong T helper type 1 (Th1)/Th17 immune response in the small intestine. Regulatory T cells (Treg ) are CD4+ CD25++ forkhead box protein 3 (FoxP3+ ) cells that regulate the immune response. Conversely to its counterpart, FoxP3 full length (FL), the alternatively spliced isoform FoxP3 Δ2, cannot properly down-regulate the Th17-driven immune response. As the active state of CD has been associated with impairments in Treg cell function, we aimed at determining whether imbalances between FoxP3 isoforms may be associated with the disease. Intestinal biopsies from patients with active CD showed increased expression of FOXP3 Δ2 isoform over FL, while both isoforms were expressed similarly in non-coeliac control subjects (HC). Conversely to what we saw in the intestine, peripheral blood mononuclear cells (PBMC) from HC subjects did not show the same balance between isoforms. We therefore hypothesized that the intestinal microenvironment may play a role in modulating alternative splicing. The proinflammatory intestinal microenvironment of active patients has been reported to be enriched in butyrate-producing bacteria, while high concentrations of lactate have been shown to characterize the preclinical stage of the disease. We show that the combination of interferon (IFN)-γ and butyrate triggers the balance between FoxP3 isoforms in HC subjects, while the same does not occur in CD patients. Furthermore, we report that lactate increases both isoforms in CD patients. Collectively, these findings highlight the importance of the ratio between FoxP3 isoforms in CD and, for the first time, associate the alternative splicing process mechanistically with microbial-derived metabolites.
Collapse
Affiliation(s)
- G Serena
- Massachusetts General Hospital and Division of Pediatric Gastroenterology and Nutrition, Center for Celiac Research, Mucosal Immunology and Biology Research Center, Boston, MA, USA.,Graduate Program in Life Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
| | - S Yan
- Massachusetts General Hospital and Division of Pediatric Gastroenterology and Nutrition, Center for Celiac Research, Mucosal Immunology and Biology Research Center, Boston, MA, USA
| | - S Camhi
- Massachusetts General Hospital and Division of Pediatric Gastroenterology and Nutrition, Center for Celiac Research, Mucosal Immunology and Biology Research Center, Boston, MA, USA
| | - S Patel
- Massachusetts General Hospital and Division of Pediatric Gastroenterology and Nutrition, Center for Celiac Research, Mucosal Immunology and Biology Research Center, Boston, MA, USA
| | - R S Lima
- Massachusetts General Hospital and Division of Pediatric Gastroenterology and Nutrition, Center for Celiac Research, Mucosal Immunology and Biology Research Center, Boston, MA, USA
| | - A Sapone
- Massachusetts General Hospital and Division of Pediatric Gastroenterology and Nutrition, Center for Celiac Research, Mucosal Immunology and Biology Research Center, Boston, MA, USA.,Celiac Center, Division of Gastroenterology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - M M Leonard
- Massachusetts General Hospital and Division of Pediatric Gastroenterology and Nutrition, Center for Celiac Research, Mucosal Immunology and Biology Research Center, Boston, MA, USA
| | - R Mukherjee
- Celiac Center, Division of Gastroenterology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - B J Nath
- Department of Gastroenterology, Massachusetts General Hospital, Boston, MA, USA
| | - K M Lammers
- Massachusetts General Hospital and Division of Pediatric Gastroenterology and Nutrition, Center for Celiac Research, Mucosal Immunology and Biology Research Center, Boston, MA, USA
| | - A Fasano
- Massachusetts General Hospital and Division of Pediatric Gastroenterology and Nutrition, Center for Celiac Research, Mucosal Immunology and Biology Research Center, Boston, MA, USA.,European Biomedical Research Institute of Salerno (EBRIS), Salerno, Italy
| |
Collapse
|
3
|
Lima RS, Pessoa RAS, Nascimento WG, Silva JRC, Ferraz I. Palma forrageira associada à silagem de sorgo corrigida com ureia e farelo de algodão em dietas para novilhos Girolando. Bol Ind Anim 2017. [DOI: 10.17523/bia.v74n4p342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
4
|
Ramos FS, Serino LTR, Carvalho CMS, Lima RS, Urban CA, Cavalli IJ, Ribeiro EMSF. PDIA3 and PDIA6 gene expression as an aggressiveness marker in primary ductal breast cancer. Genet Mol Res 2015; 14:6960-7. [PMID: 26125904 DOI: 10.4238/2015.june.26.4] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Changes in the expression of the protein disulfide isomerase genes PDIA3 and PDIA6 may increase endoplasmic reticulum stress, leading to cellular instability and neoplasia. We evaluated the expression of PDIA3 and PDIA6 in invasive ductal carcinomas. Using reverse transcription-quantitative polymerase chain reaction, we compared the mRNA expression level in 45 samples of invasive ductal carcinoma with that in normal breast samples. Increased expression of the PDIA3 gene in carcinomas (P = 0.0009) was observed. In addition, PDIA3 expression was increased in tumors with lymph node metastasis (P = 0.009) and with grade III (P < 0.02). The PDIA6 gene showed higher expression levels in the presence of lymph node metastasis (U = 99.00, P = 0.0476) and lower expression for negative hormone receptors status (P = 0.0351). Our results suggest that alterations in PDIA3/6 expression levels may be involved in the breast carcinogenic process and should be further investigated as a marker of aggressiveness.
Collapse
Affiliation(s)
- F S Ramos
- Laboratório de Citogenética Humana e Oncogenética, Departamento de Genética, Universidade Federal do Paraná
| | - L T R Serino
- Laboratório de Citogenética Humana e Oncogenética, Departamento de Genética, Universidade Federal do Paraná
| | - C M S Carvalho
- Laboratório de Citogenética Humana e Oncogenética, Departamento de Genética, Universidade Federal do Paraná
| | - R S Lima
- Universidade de Mama, Hospital Nossa Senhora das Graças, Curitiba, PR, Brasil
| | - C A Urban
- Universidade de Mama, Hospital Nossa Senhora das Graças, Curitiba, PR, Brasil
| | - I J Cavalli
- Laboratório de Citogenética Humana e Oncogenética, Departamento de Genética, Universidade Federal do Paraná
| | - E M S F Ribeiro
- Laboratório de Citogenética Humana e Oncogenética, Departamento de Genética, Universidade Federal do Paraná,
| |
Collapse
|
5
|
Paula-Lopes FF, Lima RS, Satrapa RA, Barros CM. PHYSIOLOGY AND ENDOCRINOLOGY SYMPOSIUM: Influence of cattle genotype (Bos indicus vs. Bos taurus) on oocyte and preimplantation embryo resistance to increased temperature1,2. J Anim Sci 2013; 91:1143-53. [DOI: 10.2527/jas.2012-5802] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- F. F. Paula-Lopes
- Institute of Environmental Sciences, Chemistry and Pharmacology, Federal University of Sao Paulo, Diadema, SP, Brazil
- Department of Pharmacology, Institute of Bioscience, University of Sao Paulo State, 18618-970, Botucatu-SP, Brazil
| | - R. S. Lima
- Department of Pharmacology, Institute of Bioscience, University of Sao Paulo State, 18618-970, Botucatu-SP, Brazil
| | - R. A. Satrapa
- Department of Pharmacology, Institute of Bioscience, University of Sao Paulo State, 18618-970, Botucatu-SP, Brazil
| | - C. M. Barros
- Department of Pharmacology, Institute of Bioscience, University of Sao Paulo State, 18618-970, Botucatu-SP, Brazil
| |
Collapse
|
6
|
Ispada J, Lima RS, Risolia PHB, Assumpção MEOA, Visintin JA, Paula-Lopes FF. 193 INSULIN-LIKE GROWTH FACTOR-1 EXERTS A THERMOPROTECTIVE ROLE ON MITOCHONDRIAL FUNCTION OF BOVINE OOCYTES EXPOSED TO HEAT SHOCK. Reprod Fertil Dev 2012. [DOI: 10.1071/rdv24n1ab193] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The series of events associated with oocyte maturation are susceptible to disruption by elevated temperature. These events are regulated by a variety of growth factors, such as insulin-like growth factor-1 (IGF-1). Exposure of bovine oocytes to heat shock compromises oocyte competence and triggers apoptosis. It has been shown that cellular stresses often alter mitochondrial function and activate the mitochondrial apoptotic cascade. Therefore, the objective of this study was to determine the effect of heat shock on bovine oocyte mitochondrial activity and the role of IGF-1 in this context. Slaughterhouse derived cumulus–oocyte complexes (COC) were subjected to control (38.5°C for 22 h) and heat shock (41°C for 14 h, followed by 38.5°C for 8 h) treatments in the presence of 0 or 100 ng mL–1 of IGF-1 during in vitro maturation (IVM). After 22 h, IVM COC were mechanically denuded and subjected to MitoTracker Red CMX-Ros assay (Invitrogen M-7512) to localize and quantify active mitochondria. Denuded oocytes were incubated in TCM-199-HEPES containing 10 μg mL–1 of polyvinyl alcohol and 50 nM MitoTracker at 37°C for 15 min. Oocytes were evaluated under fluorescence microscope and digital images were obtained and stored as TIFF files. Mitochondrial activity from each oocyte was quantified using the software Image J 1.43. This experiment was replicated 6 times using 97 to 204 COC/treatment. Data were analyzed by least-squares analysis of variance using the general linear model procedure of SAS. In the absence of IGF-1, heat shock reduced (P < 0.001) mitochondrial activity from 64.31 ± 1.91 to 56.74 ± 1.26 arbitrary units for control and heat shock groups, respectively. Addition of IGF-1 to maturation medium did not affect mitochondrial activity in the control group (66.25 ± 1.56). However, IGF-1 improved (temperature × IGF-1; P < 0.001) mitochondrial activity of bovine oocytes subjected to heat shock (70.32 ± 1.32). In conclusion, heat shock reduced bovine oocyte mitochondrial activity, suggesting activation of mitochondrial apoptotic cascade. Moreover, IGF-1 exerted a thermoprotective role, reducing the mitochondrial damage caused by elevated temperature.
Collapse
|
7
|
Rocha NN, Garcia S, Giménez LED, Hernández CCQ, Senra JFV, Lima RS, Cyrino F, Bouskela E, Soares MBP, Ribeiro dos Santos R, Campos de Carvalho AC. Characterization of cardiopulmonary function and cardiac muscarinic and adrenergic receptor density adaptation in C57BL/6 mice with chronic Trypanosoma cruzi infection. Parasitology 2006; 133:729-37. [PMID: 16978452 DOI: 10.1017/s0031182006001193] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2006] [Revised: 06/10/2006] [Accepted: 06/13/2006] [Indexed: 02/05/2023]
Abstract
Circulating antibodies in chagasic patients interact with myocardial beta adrenergic and muscarinic cholinergic receptors, triggering intracellular signals that alter cardiac function along the course of the disease. However, until now, experimental data in models of chronically infected chagasic mice linking the effects on myocardial beta adrenergic and muscarinic receptors to cardiopulmonary dysfunction is lacking. Thus, we studied C57BL/6 mice 8 months after intraperitoneal injection of 100 trypomastigote forms of the Colombian strain of T. cruzi. Uninfected mice, matched in age, were used as controls. Histopathological analyses (inflammation and fibrosis) and radio-ligand binding assays for estimation of muscarinic and adrenergic receptor density were performed in myocardium tissue samples. When compared to controls, infected mice had electrical conduction disturbances, diastolic dysfunction, lower O2 consumption and anaerobic threshold. In addition, hearts of chronic chagasic mice had intense inflammation and fibrosis, and decreased beta adrenergic and increased muscarinic receptor densities than normal controls. Our data suggest that chronic T. cruzi infection causes alterations in cardiac receptor density and fibrosis deposition which can be associated with cardiac conduction abnormalities, diastolic dysfunction and lower exercise capacity, associating for the first time all these functional and histopathological alterations in chagasic mice.
Collapse
Affiliation(s)
- N N Rocha
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Santos SCL, Cavalli LR, Cavalli IJ, Lima RS, Haddad BR, Ribeiro EMSF. Loss of heterozygosity of the BRCA1 and FHIT genes in patients with sporadic breast cancer from Southern Brazil. J Clin Pathol 2004; 57:374-7. [PMID: 15047740 PMCID: PMC1770278 DOI: 10.1136/jcp.2003.013490] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIM The evaluation of allelic losses at the FHIT and the BRCA1 genes and at three other loci at the 17q region in a series of 34 sporadic breast cancer cases from Southern Brazil. METHODS The samples were evaluated for loss of heterozygosity (LOH) at the FHIT and the BRCA1 genes and at three other microsatellite markers at 17q, and the findings were correlated with clinicopathological parameters. RESULTS The BRCA1 intragenic marker, D17S855, had the highest frequency of LOH, detected in 10 of 24 informative cases, followed by the D17S579 (six of 23 informative cases), D17S806 (five of 21 informative cases), and D17S785 markers (five of 21 informative cases). LOH at the FHIT intragenic marker, D3S1300, was found in six of 25 informative cases. In four of the six cases with LOH of the FHIT gene, there was concomitant loss of the BRCA1 intragenic marker. CONCLUSIONS The frequency of allelic losses in the FHIT and BRCA1 loci in the Southern Brazilian population is similar to that described in the general population. No correlations were found when the total LOH frequency was compared with tumour size, grade, or presence of axillary lymph node metastasis. Further studies using larger sporadic breast cancer samples and additional markers would be useful to confirm these findings, in addition to establishing more specific associations with clinicopathological parameters in this specific population.
Collapse
Affiliation(s)
- S C L Santos
- Departamento de Genética, Universidade Federal do Parana, Curitiba, PR, 81531-970 Brazil
| | | | | | | | | | | |
Collapse
|
9
|
Cavalli LR, Cornélio DA, Wuicik L, Bras AT, Ribeiro EM, Lima RS, Urban CA, Rogatto SR, Cavalli IJ. Clonal chromosomal alterations in fibroadenomas of the breast. Cancer Genet Cytogenet 2001; 131:120-4. [PMID: 11750051 DOI: 10.1016/s0165-4608(01)00502-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A cytogenetic study on short-term cell cultures from 10 fibroadenomas of the breast is reported. Clonal chromosomal alterations were observed in all cases analyzed, involving preferentially chromosomes X, 12, 14, 20, and 22. Normal karyotypes were found in 34.9% of the cells. The present findings are discussed together with the reports on fibroadenomas and other benign lesions of the breast described in the literature. Although no specific chromosome abnormality to date can be attributed to a particular type of benign breast pathology, some recurrent alterations are starting to emerge and may characterize these benign breast lesions, differentiating them from their malignant counterparts.
Collapse
Affiliation(s)
- L R Cavalli
- Departamento de Genética, Universidade Federal do Paraná, Caixa Postal 19071, CEP 81531-970, Curitiba, Paraná, Brazil.
| | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Soares MB, Silva-Mota KN, Lima RS, Bellintani MC, Pontes-de-Carvalho L, Ribeiro-dos-Santos R. Modulation of chagasic cardiomyopathy by interleukin-4: dissociation between inflammation and tissue parasitism. Am J Pathol 2001; 159:703-9. [PMID: 11485928 PMCID: PMC1850539 DOI: 10.1016/s0002-9440(10)61741-5] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Chronic chagasic cardiomyopathy (CChC) is characterized by an inflammatory reaction which may eventually lead to heart enlargement, arrythmia, and death. As described herein, interleukin-4-deficient mice mount increased specific T helper (Th) 1 immune responses when infected with Trypanosoma cruzi, as compared to wild-type mice. Interestingly, these mice had reduced parasitism and mortality and exacerbated inflammation in their hearts, demonstrating a clear dissociation between inflammation and parasite load. The modulation of these phenomena so as to maximize host and parasite survivals may depend on a fine balance between Th responses, in which a Th1 response will, on one hand, control parasitism and, on the other hand, enhance heart inflammation throughout the course of the infection.
Collapse
Affiliation(s)
- M B Soares
- Gonçalo Moniz Research Center - Fundaçào Oswaldo Cruz, Rua Waldemar Falcão, 121-Brotas-Salvador, Bahia, Brazil 40295-001
| | | | | | | | | | | |
Collapse
|
11
|
Lima RS, Jordani MC, Souza MEJ, Picinato MANC, Franco CFF, Castro e Silva Jr. O. Eficácia do pré-condicionamento isquêmico na proteção das lesões de isquemia e reperfusão hepáticas. Acta Cir Bras 2000. [DOI: 10.1590/s0102-86502000000600035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
12
|
Abstract
Gynecomastia is a benign condition that frequently occurs in the male breast gland; however, the cytogenetic data on this entity are very limited. To our knowledge, three cases have been reported in the literature, and the only one with an abnormal karyotype had a concomitant breast carcinoma. In this study we report clonal chromosomal alterations in a gynecomastia sample without any signs of adjacent malignant tissue. The nonrandom abnormalities observed were a deletion of 12p, monosomies of chromosomes 9, 17, 19, and 20, and the presence of a marker chromosome. Most of these alterations have been previously described in the literature in other breast lesions, including benign and malignant (male and female) tumors, indicating their recurrence and nonrandomness in abnormal processes of the mammary gland.
Collapse
Affiliation(s)
- D A Cornélio
- Departamento de Genética do Setor de Ciências Biológicas, Universidade Federal do Paraná, Curitiba, Paraná, Brazil
| | | | | | | | | | | |
Collapse
|
13
|
Lima RS, Siqueira GR, Juliano L, Figueiredo AF. Human urinary kallikreins A, B and D: isolation, purification and properties. Adv Exp Med Biol 1989; 247A:507-11. [PMID: 2557752 DOI: 10.1007/978-1-4615-9543-4_78] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- R S Lima
- Departamento de Bioquímica e Imunologia do ICB da UFMG, Belo Horizonte, Brazil
| | | | | | | |
Collapse
|