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Machado Lessa CL, Branchini G, Moreira Delfino I, Ramos Voos MH, Teixeira C, Hoher JA, Nunes FB. Comparison of Sepsis-1, 2 and 3 for Predicting Mortality in Septic Patients of a Middle-Income Country: A Retrospective Observational Cohort Study. J Intensive Care Med 2024; 39:349-357. [PMID: 37899601 DOI: 10.1177/08850666231208368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
INTRODUCTION The diagnosis of sepsis is based on expert consensus and does not yet have a "gold standard." With the aim of improving and standardizing diagnostic methods, there have already been three major consensuses on the subject. However, there are still few studies in middle-income countries comparing the methods. This study describes the characteristics of patients diagnosed with sepsis and evaluates and compares the performance of Sepsis-1, 2, and 3 criteria in predicting 28 days, and in-hospital mortality. PATIENTS AND METHODS A retrospective observational cohort study was conducted in the intensive care unit of a tertiary hospital. All admissions between January 1, 2018, and December 31, 2019, were reviewed. Patients diagnosed with sepsis were included. RESULTS During the study period, 653 patients diagnosed with sepsis (by any of the studied criteria) were included in the study. The 28 days mortality rate was 45.8%, and the in-hospital mortality rate was 59.7%. We observed that 72.1% of patients met the minimum criteria for diagnosing sepsis according to the three protocols, and this group also had the highest mortality rate. Age and comorbidities such as cancer and liver cirrhosis were significantly associated with in-hospital mortality. The most common microorganisms were Escherichia coli, Klebsiella spp., and Staphylococcus spp. CONCLUSIONS The study found that most patients met the diagnostic criteria for sepsis using the three methods. Sepsis-2 showed greater sensitivity to predict mortality, while Sequential Organ Failure Assessment showed low accuracy, but was the only significant one. Furthermore, quick Sequential Organ Failure Assessment (qSOFA) had the highest specificity for mortality. Overall, these findings suggest that, although all three methods contribute to the diagnosis and prognosis of sepsis, Sepsis-2 is particularly sensitive in predicting mortality. Sepsis-3 shows some accuracy but requires improvement, and qSOFA exhibits the highest specificity. More research is needed to improve predictive capabilities and patient outcomes.
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Affiliation(s)
| | - Gisele Branchini
- Graduate Program in Pathology, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil
| | - Isabela Moreira Delfino
- Graduate Program in Health Sciences, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil
| | | | - Cassiano Teixeira
- Department of Clinical Medicine, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil
| | - Jorge Amilton Hoher
- Department of Clinical Medicine, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil
- Central-intensive Care Unit, Complexo Hospitalar Santa Casa de Misericórdia de Porto Alegre, Brazil
| | - Fernanda Bordignon Nunes
- Graduate Program in Pathology, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil
- School of Health and Life Sciences, Pontifícia Universidade Católica do Rio Grande do Sul, Brazil
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Novakoski E, Branchini G, Franco de Oliveira T, Flôres Kuhn J, Bueno Motter S, Lee P, Krauspenhar Rossato C, Frau Alveal VA, Bordignon Nunes F. Time since death: The histological chronotanatognostic. J Forensic Leg Med 2023; 97:102554. [PMID: 37393848 DOI: 10.1016/j.jflm.2023.102554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 06/14/2023] [Accepted: 06/19/2023] [Indexed: 07/04/2023]
Abstract
The time since death is an important aspect of forensic medicine; however, there is not an accurate single method to determine this data. Therefore, this research aimed to evaluate parameters and procedures based on the morphological analysis of cells and tissues to determine the time since death, using animal models. Pigs were chosen in this research because of their similarities with human anatomy, physiology, and pathophysiology. We identified the cells and tissue alterations in the viscera of pig cadavers according to the time since death, also describing the changes in the temperature of the organs and the bodies. The environmental temperature during the sample collection was also registered. The viscera analysis was performed for 24 h, with a 2-h variation period. After the sample collection, microscope slides were prepared for optical microscopy analysis. Through this 24-h analysis, we observed that the pancreas, small intestine, and large intestine presented more cellular alterations than the other organs. The alterations observed in the other viscera have significance when analyzed in combination. The meninges presented higher stability and few changes in 24 h, which could be relevant in an investigation of the time since death in a period greater than 24 h. Our results showed that histological evaluation is an excellent method to determine the time since death.
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Affiliation(s)
- Eduardo Novakoski
- Federal University of Health Sciences of Porto Alegre, St. Sarmento Leite, 245, Porto Alegre, RS, 90050-170, Brazil.
| | - Gisele Branchini
- Federal University of Health Sciences of Porto Alegre, St. Sarmento Leite, 245, Porto Alegre, RS, 90050-170, Brazil.
| | - Tiago Franco de Oliveira
- Federal University of Health Sciences of Porto Alegre, St. Sarmento Leite, 245, Porto Alegre, RS, 90050-170, Brazil.
| | - Julia Flôres Kuhn
- University of Cruz Alta - UNICRUZ, Municipal Highway Jacob Della Mea, km 5,6, Cruz Alta, RS, 98020-290, Brazil.
| | - Sarah Bueno Motter
- Federal University of Health Sciences of Porto Alegre, St. Sarmento Leite, 245, Porto Alegre, RS, 90050-170, Brazil.
| | - Petrus Lee
- Federal University of Health Sciences of Porto Alegre, St. Sarmento Leite, 245, Porto Alegre, RS, 90050-170, Brazil.
| | | | | | - Fernanda Bordignon Nunes
- Federal University of Health Sciences of Porto Alegre, St. Sarmento Leite, 245, Porto Alegre, RS, 90050-170, Brazil.
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Pereira MP, Branchini G, Nunes FB, Altmayer S, Hetzel GM, Romero I, Rubin AS, Florian J, Nascimento DZ, Watte G. Antifibrotic therapy in idiopathic pulmonary fibrosis candidates for lung transplantation undergoing pulmonary rehabilitation. J Bras Pneumol 2023; 49:e20220250. [PMID: 36753211 PMCID: PMC9970374 DOI: 10.36416/1806-3756/e20220250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 11/16/2022] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVE To investigate the impact of pulmonary rehabilitation (PR) on functional outcomes and health-related quality of life (HRQoL) in idiopathic pulmonary fibrosis (IPF) patients placed on a lung transplant waitlist and receiving antifibrotic therapy (AFT). METHODS This was a retrospective observational study of consecutive IPF patients receiving AFT with either pirfenidone or nintedanib (the AFT group) and undergoing PR between January of 2018 and March of 2020. The AFT group and the control group (i.e., IPF patients not receiving AFT) participated in a 12-week PR program consisting of 36 sessions. After having completed the program, the study participants were evaluated for the six-minute walk distance (6MWD) and HRQoL. Pre- and post-PR 6MWD and HRQoL were compared within groups and between groups. RESULTS There was no significant difference between the AFT and control groups regarding baseline characteristics, including age, airflow limitation, comorbidities, and oxygen requirement. The AFT group had a significant increase in the 6MWD after 12 weeks of PR (effect size, 0.77; p < 0.05), this increase being significant in the between-group comparison as well (effect size, 0.55; p < 0.05). The AFT group showed a significant improvement in the physical component of HRQoL at 12 weeks (effect size, 0.30; p < 0.05). CONCLUSIONS Among IPF patients undergoing PR, those receiving AFT appear to have greater improvements in the 6MWD and the physical component of HRQoL than do those not receiving AFT.
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Affiliation(s)
- Monica Pruss Pereira
- . Programa de Pós-Graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre (RS) Brasil
| | - Gisele Branchini
- . Programa de Pós-Graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre (RS) Brasil
| | - Fernanda Bordignon Nunes
- . Programa de Pós-Graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre (RS) Brasil
| | - Stephan Altmayer
- . Serviço de Pneumologia, Pavilhão Pereira Filho, Irmandade Santa Casa de Misericórdia de Porto Alegre, Porto Alegre (RS) Brasil
| | | | - Iveth Romero
- . Programa de Pós-Graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre (RS) Brasil
| | - Adalberto Sperb Rubin
- . Serviço de Pneumologia, Pavilhão Pereira Filho, Irmandade Santa Casa de Misericórdia de Porto Alegre, Porto Alegre (RS) Brasil
| | - Juliessa Florian
- . Serviço de Transplante Pulmonar, Pavilhão Pereira Filho, Irmandade Santa Casa de Misericórdia de Porto Alegre, Porto Alegre (RS) Brasil
| | - Douglas Zaione Nascimento
- . Programa de Pós-Graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre (RS) Brasil
- . Serviço de Transplante Pulmonar, Pavilhão Pereira Filho, Irmandade Santa Casa de Misericórdia de Porto Alegre, Porto Alegre (RS) Brasil
| | - Guilherme Watte
- . Programa de Pós-Graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre (RS) Brasil
- . Serviço de Pneumologia, Pavilhão Pereira Filho, Irmandade Santa Casa de Misericórdia de Porto Alegre, Porto Alegre (RS) Brasil
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Velasque MJSG, Branchini G, Catarina AV, Bettoni L, Fernandes RS, Da Silva AF, Dorneles GP, da Silva IM, Santos MA, Sumienski J, Peres A, Roehe AV, Kohek MBDF, Porawski M, Nunes FB. Fish Oil - Omega-3 Exerts Protective Effect in Oxidative Stress and Liver Dysfunctions Resulting from Experimental Sepsis. J Clin Exp Hepatol 2023; 13:64-74. [PMID: 36647406 PMCID: PMC9840085 DOI: 10.1016/j.jceh.2022.07.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 06/24/2022] [Accepted: 07/03/2022] [Indexed: 01/19/2023] Open
Abstract
Background Sepsis is a severe global health problem, with high morbidity and mortality. In sepsis, one of the main affected organs is the liver. Hepatic alterations characterize a negative prognostic. Omega-3 fatty acids (ω3), eicosapentaenoic acid, and docosahexaenoic acid, are part of the main families of polyunsaturated fatty acids. ω3 has been used in studies as sepsis treatment and as a treatment for non-alcoholic liver disease. Aim We aimed to evaluate the effects of treatment with fish oil (FO) rich in ω3 on liver changes and damage resulting from experimental sepsis. Methodology A model of severe sepsis in Wistar rats was used. Oxidative stress in the liver tissue was evaluated by means of tests of thiobarbituric acid reactive substances, 2,7-dihydrodichlorofluorescein diacetate , catalase, and glutathione peroxidase, in the serum TBARS, DCF, thiols and, to assess liver dysfunction, alanine aminotransferase and aspartate aminotransferase. Hepatic tissue damage was evaluated using H&E histology. Results In assessments of oxidative stress in liver tissue, a protective effect was observed in the tests of TBARS, DCF, CAT, and GPx, when compared the sepsis versus sepsis+ω3 groups. Regarding the oxidative stress in serum, a protective effect of treatment with ω3 was observed in the TBARS, DCF, and thiols assays, in the comparison between the sepsis and sepsis+ω3 groups. ω3 had also a beneficial effect on biochemical parameters in serum in the analysis of ALT, creatinine, urea, and lactate, observed in the comparison between the sepsis and sepsis+ω3 groups. Conclusion The results suggest ω3 as a liver protector during sepsis with an antioxidant effect, alleviating injuries and dysfunctions.
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Key Words
- ALT, alanine aminotransferase
- AST, aspartate aminotransferase
- CAT, catalase
- DCF, 2,7-dihydrodichlorofluorescein diacetate
- DHA, docosahexaenoic acid
- EPA, eicosapentaenoic acid
- FO, fish oil
- GPx, glutathione peroxidase
- GTO, oxaloacetic transaminase
- GTP, pyruvic transaminase
- HE, Hematoxylin and Eosin
- ICON, Intensive Care Over Nations
- ICU, intensive care unit
- IFN- γ, interferon gamma
- Liver injury
- RNS, reactive nitrogen species
- ROS, reactive oxygen species
- TBARS, Thiobarbituric Acid Reactive Substances
- TGF-β, transforming growth factor beta
- TNF-α, tumor necrosis factor alpha
- antioxidant
- inflammation
- omega-3
- oxidative stress
- sepsis
- ω3, omega-3
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Affiliation(s)
- Mary J. Soares Gonçalves Velasque
- Graduate Program in Pathology – Laboratory of Computational, Molecular, and Cellular Biophysics, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
| | - Gisele Branchini
- Graduate Program in Pathology – Laboratory of Computational, Molecular, and Cellular Biophysics, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
| | - Anderson V. Catarina
- Graduate Program in Pathology – Laboratory of Computational, Molecular, and Cellular Biophysics, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
| | - Lais Bettoni
- Graduate Program in Pathology – Laboratory of Computational, Molecular, and Cellular Biophysics, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
| | - Renata S. Fernandes
- Graduate Program in Health Sciences – Laboratory of Translational Physiology – Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
| | | | - Gilson P. Dorneles
- Laboratory of Cellular and Molecular Immunology – Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
| | - Igor Martins da Silva
- Laboratory of Cellular and Molecular Immunology – Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
| | - Maeli A. Santos
- Laboratory of Cellular and Molecular Immunology – Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
| | - Juliana Sumienski
- Laboratory of Immunology and Microbiology - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Brazil
| | - Alessandra Peres
- Laboratory of Cellular and Molecular Immunology – Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
| | - Adriana V. Roehe
- Graduate Program in Pathology – Laboratory of Pathology – Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
| | - Maria B. da Fonte Kohek
- Laboratory of Cellular and Molecular Immunology – Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
| | - Marilene Porawski
- Laboratory of Behavioral and Metabolic Physiology – Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
| | - Fernanda B. Nunes
- Graduate Program in Pathology – Laboratory of Computational, Molecular, and Cellular Biophysics, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
- Laboratory of Inflammation and Cellular Biophysics - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Brazil
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Dupont L, Duquia RP, Pizutti GW, Nunes FB, Branchini G, Mosquera ESB, Bonamigo RR. Cutaneous Manifestations in Patients With COVID-19 Treated at a University Hospital in Southern Brazil. Cureus 2022; 14:e31566. [DOI: 10.7759/cureus.31566] [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] [Accepted: 10/27/2022] [Indexed: 11/17/2022] Open
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Lee P, Nunes FB, Höher JA, Branchini G. Temporal progression of sepsis on critical care COVID-19 patients: a retrospective cohort study. Rev Assoc Med Bras (1992) 2022; 68:1458-1463. [DOI: 10.1590/1806-9282.20220669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 07/09/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Petrus Lee
- Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil
| | | | | | - Gisele Branchini
- Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil
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Peres A, Branchini G, Marmett B, Nunes FB, Romão PRT, Olean-Oliveira T, Minuzzi L, Cavalcante M, Elsner V, Lira FS, Dorneles GP. Potential Anticarcinogenic Effects From Plasma of Older Adults After Exercise Training: An Exploratory Study. Front Physiol 2022; 13:855133. [PMID: 35874516 PMCID: PMC9298496 DOI: 10.3389/fphys.2022.855133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 05/23/2022] [Indexed: 11/28/2022] Open
Abstract
Aim: To evaluate the impact of exercise training plasma on in vitro prostate cancer cell viability and proliferation. Methods: PC3 prostate cancer cells were incubated with plasma obtained from young men with high and low physical fitness (PF) (high PF, n = 5; low PF, n = 5) and with the plasma collected from institutionalized older adults (n = 8) before and after multimodal exercise training. Cell viability and proliferation, mitochondria membrane polarization, reactive oxygen species (ROS) generation, and apoptosis were evaluated after the cell treatment with plasma. Systemic cytokines were evaluated in the plasma of institutionalized older adults submitted to an exercise training protocol. Results: Plasma from high-PF men lowers both cell viability and proliferation after the incubation time. PC3 cells also presented lower cell viability and diminished rates of cell proliferation after the incubation with post-training plasma samples of the older adults. The incubation of PC3 cells with post-training plasma of older adults depolarized the mitochondrial membrane potential and increased mitochondrial reactive oxygen species production. Post-training plasma did not change apoptosis or necrosis rates in the PC3 cell line. Multimodal exercise training increased the plasma levels of IL-2, IL-10, IFN-α, and FGF-1 and decreased TNF-α concentrations in institutionalized older adults. Conclusion: Adaptations in blood factors of institutionalized older adults may alter cell viability and proliferation by targeting mitochondrial ROS in a prostate cancer cell line.
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Affiliation(s)
- Alessandra Peres
- Laboratório de Imunologia Celular e Molecular, Departamento de Ciências Básicas da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Gisele Branchini
- Programa de Pós-graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre-UFCSPA, Porto Alegre, Brazil
| | - Bruna Marmett
- Laboratório de Imunologia Celular e Molecular, Departamento de Ciências Básicas da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Fernanda Bordignon Nunes
- Programa de Pós-graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre-UFCSPA, Porto Alegre, Brazil
| | - Pedro R T Romão
- Laboratório de Imunologia Celular e Molecular, Departamento de Ciências Básicas da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Tiago Olean-Oliveira
- Exercise and Immunometabolism Research Group, Postgraduation Program in Movement Sciences, Department of Physical Education, Universidade Estadual Paulista (UNESP), Presidente Prudente, Brazil.,Faculty of Sports Science and Physical Education, Research Center for Sports and Physical Activity, University of Coimbra, Coimbra, Portugal
| | - Luciele Minuzzi
- Exercise and Immunometabolism Research Group, Postgraduation Program in Movement Sciences, Department of Physical Education, Universidade Estadual Paulista (UNESP), Presidente Prudente, Brazil
| | - Mateus Cavalcante
- Programa de Pós-graduação em Fisiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Viviane Elsner
- Laboratório de Imunologia Celular e Molecular, Departamento de Ciências Básicas da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Fabio Santos Lira
- Exercise and Immunometabolism Research Group, Postgraduation Program in Movement Sciences, Department of Physical Education, Universidade Estadual Paulista (UNESP), Presidente Prudente, Brazil.,Faculty of Sports Science and Physical Education, Research Center for Sports and Physical Activity, University of Coimbra, Coimbra, Portugal
| | - Gilson Pires Dorneles
- Laboratório de Imunologia Celular e Molecular, Departamento de Ciências Básicas da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
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Costa BP, Nassr MT, Diz FM, Fernandes KHA, Antunes GL, Grun LK, Barbé-Tuana FM, Nunes FB, Branchini G, de Oliveira JR. Methoxyeugenol regulates the p53/p21 pathway and suppresses human endometrial cancer cell proliferation. J Ethnopharmacol 2021; 267:113645. [PMID: 33271245 DOI: 10.1016/j.jep.2020.113645] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/18/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Plant-derived compounds are a reservoir of natural chemicals and can act as drug precursors or prototypes and pharmacological probes. Methoxyeugenol is a natural compound found in plant extracts, such as nutmeg (Myristica fragrans), and it presents anthelmintic, antimicrobial, anti-inflammatory activities. Recently, interest in the anticancer activity of plant extracts is increasing and the therapeutic activity of methoxyeugenol against cancer has not yet been explored. AIM OF THE STUDY The present study aimed to evaluate the cancer-suppressive role and the molecular signaling pathways of methoxyeugenol in human endometrial cancer (Ishikawa) cell line. MATERIALS AND METHODS Proliferation, viability, and cell toxicity were assessed by direct counting, MTT assay, and LDH enzyme release assay, respectively. Antiproliferative effect were evaluated by nuclear morphological changes along with the cellular mechanisms of apoptosis and senescence by flow cytometry. The underlying molecular and cellular mechanisms were investigated by RT-qPCR, reactive oxygen species (ROS) levels, mitochondrial dysfunction, and proliferative capacity. RESULTS AND CONCLUSIONS Methoxyeugenol treatment significantly inhibited the proliferation and viability of Ishikawa cells. Probably triggered by the higher ROS levels and mitochondrial dysfunction, the gene expression of p53 and p21 increased and the gene expression of CDK4/6 decreased in response to the methoxyeugenol treatment. The rise in nuclear size and acidic vesicular organelles corroborate with the initial senescence-inducing signals in Ishikawa cells treated with methoxyeugenol. The antiproliferative effect was not related to cytotoxicity and proved to effectively reduce the proliferative capacity of endometrial cancer cells even after treatment withdrawal. These results demonstrated that methoxyeugenol has a promising anticancer effect against endometrial cancer by rising ROS levels, triggering mitochondrial instability, and modulating cell signaling pathways leading to an inhibition of cell proliferation.
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Affiliation(s)
- Bruna Pasqualotto Costa
- Laboratório de Pesquisa em Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Rio Grande do Sul, Brazil.
| | - Marcella Tornquist Nassr
- Laboratório de Pesquisa em Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Fernando Mendonça Diz
- Programa de Pós-Graduação em Engenharia e Tecnologia de Materiais, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Krist Helen Antunes Fernandes
- Laboratório de Imunologia Clínica e Experimental, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Géssica Luana Antunes
- Laboratório de Pesquisa em Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Lucas Kich Grun
- Programa de Pós-graduação em Pediatria e Saúde da Criança, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Florencia María Barbé-Tuana
- Laboratório de Imunobiologia, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Fernanda Bordignon Nunes
- Laboratório de Pesquisa em Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Rio Grande do Sul, Brazil; Laboratório de Biofísica Celular, Molecular e Computacional, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil
| | - Gisele Branchini
- Laboratório de Biofísica Celular, Molecular e Computacional, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil
| | - Jarbas Rodrigues de Oliveira
- Laboratório de Pesquisa em Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Rio Grande do Sul, Brazil
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Catarina AV, Branchini G, Bettoni L, De Oliveira JR, Nunes FB. Sepsis-Associated Encephalopathy: from Pathophysiology to Progress in Experimental Studies. Mol Neurobiol 2021; 58:2770-2779. [PMID: 33495934 DOI: 10.1007/s12035-021-02303-2] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [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: 07/15/2020] [Accepted: 01/18/2021] [Indexed: 12/14/2022]
Abstract
Sepsis is an organ dysfunction caused by an uncontrolled inflammatory response from the host to an infection. Sepsis is the main cause of morbidity and mortality in intensive care units (ICU) worldwide. One of the first organs to suffer from injuries resulting from sepsis is the brain. The central nervous system (CNS) is particularly vulnerable to damage, mediated by inflammatory and oxidative processes, which can cause the sepsis-associated encephalopathy (SAE), being reported in up to 70% of septic patients. This review aims to bring a summary of the main pathophysiological changes and dysfunctions in SAE, and the main focuses of current experimental studies for new treatments and therapies. The pathophysiology of SAE is complex and multifactorial, combining intertwined processes, and is promoted by countless alterations and dysfunctions resulting from sepsis, such as inflammation, neuroinflammation, oxidative stress, reduced brain metabolism, and injuries to the integrity of the blood-brain barrier (BBB). The treatment is limited once its cause is not completely understood. The patient's sedation is far to provide an adequate treatment to this complex condition. Studies and experimental advances are important for a better understanding of its pathophysiology and for the development of new treatments, medicines, and therapies for the treatment of SAE and to reduce its effects during and after sepsis.
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Affiliation(s)
- Anderson Velasque Catarina
- Programa de Pós-graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, RS, 90050-170, Brazil.
| | - Gisele Branchini
- Programa de Pós-graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, RS, 90050-170, Brazil
| | - Lais Bettoni
- Programa de Pós-graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, RS, 90050-170, Brazil
| | - Jarbas Rodrigues De Oliveira
- Laboratório de Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul - PUCRS, Porto Alegre, Brazil
| | - Fernanda Bordignon Nunes
- Programa de Pós-graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, RS, 90050-170, Brazil.,Laboratório de Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul - PUCRS, Porto Alegre, Brazil
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10
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Costa BP, Nassr MT, Diz FM, Carlessi LP, Fernandes KHA, Nunes FB, Branchini G, de Oliveira JR. Fructose-1,6-bisphosphate induces generation of reactive oxygen species and activation of p53-dependent cell death in human endometrial cancer cells. J Appl Toxicol 2020; 41:1050-1062. [PMID: 33078453 DOI: 10.1002/jat.4091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 07/13/2020] [Revised: 09/10/2020] [Accepted: 10/01/2020] [Indexed: 11/11/2022]
Abstract
Fructose-1,6-bisphosphate (F1,6BP), an intermediate of the glycolytic pathway, has been found to play a promising anticancer effect; nevertheless, the mechanisms involved remain poorly understood. The present study aimed to evaluate the effect and mechanisms of F1,6BP in a human endometrial cancer cell line (Ishikawa). F1,6BP showed an antiproliferative and non-cytotoxic effect on endometrial cancer cells. These effects are related to the increase in reactive oxygen species (ROS) levels and mitochondrial membrane potential (ΔΨm). These harmful stimuli trigger the upregulation of the expression of pro-apoptotic genes (p53 and Bax), leading to the reduction of cell proliferation through inducing programmed cell death by apoptosis. Furthermore, F1,6BP-treated cells had the formation of autophagosomes induced, as well as a decrease in their proliferative capacity after withdrawing the treatment. Our results demonstrate that F1,6BP acts as an anticancer agent through the generation of mitochondrial instability, loss of cell function, and p53-dependent cell death. Thus, F1,6BP proves to be a potential molecule for use in the treatment against endometrial cancer.
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Affiliation(s)
- Bruna Pasqualotto Costa
- Laboratory of Cellular Biophysics and Inflammation, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Marcella Tornquist Nassr
- Laboratory of Cellular Biophysics and Inflammation, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Fernando Mendonça Diz
- Program in Materials Engineering and Technology, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Leonardo Pfeiff Carlessi
- Laboratory of Cellular Biophysics and Inflammation, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Krist Helen Antunes Fernandes
- Laboratory of Clinical and Experimental Immunology, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Fernanda Bordignon Nunes
- Laboratory of Cellular Biophysics and Inflammation, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil.,Laboratory of Cellular, Molecular and Computational Biophysics, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, Brazil
| | - Gisele Branchini
- Laboratory of Cellular, Molecular and Computational Biophysics, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, Brazil
| | - Jarbas Rodrigues de Oliveira
- Laboratory of Cellular Biophysics and Inflammation, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
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11
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Costa BP, Schein V, Zhao R, Santos AS, Kliemann LM, Nunes FB, Cardoso JCR, Félix RC, Canário AVM, Brum IS, Branchini G. Stanniocalcin-1 protein expression profile and mechanisms in proliferation and cell death pathways in prostate cancer. Mol Cell Endocrinol 2020; 502:110659. [PMID: 31816356 DOI: 10.1016/j.mce.2019.110659] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 11/18/2019] [Accepted: 11/18/2019] [Indexed: 10/25/2022]
Abstract
Prostate cancer (PCa) is one of the most prevalent male tumours. Stanniocalcin-1 (STC1) is a glycoprotein and, although the role of STC1 in human cancer is poorly understood, it is suggested to be involved in the development and progression of different neoplasms. This study investigated the protein expression profile of STC1 in PCa and benign prostatic hyperplasia (BPH) samples and STC1 signalling during cell proliferation and cell death in vitro using cell lines. We found higher levels of STC1 in PCa when compared to BPH tissue and that STC1 inhibited forskolin stimulation of cAMP in PC-3 cells. A monoclonal antibody against STC1 was effective in reducing cell proliferation, in promoting cell cycle arrest, and in increasing apoptosis in the same cells. Since STC1 acts as a regulator of prostatic tissue signalling, we suggest that this protein is a novel candidate biomarker for prostate tumour clinical progression and a potential therapeutic target.
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Affiliation(s)
- Bruna Pasqualotto Costa
- Programa de Pós-Graduação em Patologia, Universidade Federal do Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Brazil
| | - Vanessa Schein
- Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - R Zhao
- Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Brazil
| | | | - Lucia Maria Kliemann
- Departamento de Patologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Fernanda Bordignon Nunes
- Programa de Pós-Graduação em Patologia, Universidade Federal do Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Brazil
| | - J C R Cardoso
- Centre of Marine Sciences (CCMAR), University of Algarve, Campus de Gambelas, Faro, Portugal
| | - Rute Castelo Félix
- Centre of Marine Sciences (CCMAR), University of Algarve, Campus de Gambelas, Faro, Portugal
| | - A V M Canário
- Centre of Marine Sciences (CCMAR), University of Algarve, Campus de Gambelas, Faro, Portugal
| | - Ilma Simoni Brum
- Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Gisele Branchini
- Programa de Pós-Graduação em Patologia, Universidade Federal do Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Brazil.
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12
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Abstract
PURPOSE The importance of androgen receptor variants (AR-Vs) is recognized in prostate cancer. AR-Vs have been the focus of many studies. Expression of AR-Vs has been proposed as a biomarker for resistance to androgen deprivation therapy for metastatic disease. Herein, we show dynamic changes in AR-Vs expression in response to androgen modulation. METHODS The C4-2B cell line was exposed to low (10-13 M) and high (10-8 M) androgen (dihydrotestosterone, DHT) levels, with or without flutamide. mRNA and protein expression levels were assessed by qPCR and immunohistochemistry, respectively. RESULTS We demonstrated that high levels of DHT downregulate AR-FL and AR-Vs. Even though AR-Vs did not present ligand-binding domain, thus were not capable of binding to DHT, they present dynamic changes under androgen treatment. Treatment with flutamide alone or in association with low levels of DHT stimulates growth of prostatic cells. CONCLUSIONS Importantly, we provide evidence that AR-Vs respond differently to androgenic modulation. These findings have implications for a better understanding of the role of AR-Vs in prostate carcinogenesis.
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Affiliation(s)
- Ana Caroline Hillebrand
- Laboratory of Molecular Endocrine and Tumoral Biology, Department of Physiology, Institute of Basic Sciences of Health, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, 90050-170, Brazil
| | - Lolita Schneider Pizzolato
- Laboratory of Molecular Endocrine and Tumoral Biology, Department of Physiology, Institute of Basic Sciences of Health, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, 90050-170, Brazil
| | - Gisele Branchini
- Department of Basic Sciences of Health, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Rio Grande do Sul, 90050-170, Brazil
| | - Ilma Simoni Brum
- Laboratory of Molecular Endocrine and Tumoral Biology, Department of Physiology, Institute of Basic Sciences of Health, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, 90050-170, Brazil.
- Laboratory of Molecular Obstetrics and Gynecology, Experimental Research Center, Department of Obstetrics and Gynecology, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, 90035-903, Brazil.
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13
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Catarina AV, Luft C, Greggio S, Venturin GT, Ferreira F, Marques EP, Rodrigues L, Wartchow K, Leite MC, Gonçalves CA, Wyse ATS, Da Costa JC, De Oliveira JR, Branchini G, Nunes FB. Fructose-1,6-bisphosphate preserves glucose metabolism integrity and reduces reactive oxygen species in the brain during experimental sepsis. Brain Res 2018; 1698:54-61. [PMID: 29932894 DOI: 10.1016/j.brainres.2018.06.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 02/09/2018] [Revised: 05/30/2018] [Accepted: 06/17/2018] [Indexed: 12/17/2022]
Abstract
Sepsis is one of the main causes of hospitalization and mortality in Intensive Care Units. One of the first manifestations of sepsis is encephalopathy, reported in up to 70% of patients, being associated with higher mortality and morbidity. The factors that cause sepsis-associated encephalopathy (SAE) are still not well known, and may be multifactorial, as perfusion changes, neuroinflammation, oxidative stress and glycolytic metabolism alterations. Fructose-1,6-bisphosphate (FBP), a metabolite of the glycolytic route, has been reported as neuroprotective agent. The present study used an experimental sepsis model in C57BL/6 mice. We used in vivo brain imaging to evaluate glycolytic metabolism through microPET scans and the radiopharmaceutical 18F-fluoro-2-deoxy-D-glucose (18F-FDG). Brain images were obtained before and 12 h after the induction of sepsis in animals with and without FBP treatment. We also evaluated the treatment effects in the brain oxidative stress by measuring the production of reactive oxygen species (ROS), the activity of catalase (CAT) and glutathione peroxidase (GPx), and the levels of fluorescent marker 2'7'-dichlorofluorescein diacetate (DCF). There was a significant decrease in brain glucose metabolism due to experimental sepsis. A significant protective effect of FBP treatment was observed in the cerebral metabolic outcomes. FBP also modulated the production of ROS, evidenced by reduced CAT activity and lower levels of DCF. Our results suggest that FBP may be a possible candidate in the treatment of SAE.
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Affiliation(s)
- Anderson V Catarina
- Programa de Pós-graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, Brazil.
| | - Carolina Luft
- Laboratório de Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul - PUCRS, Porto Alegre, Brazil
| | - Samuel Greggio
- Centro de Pesquisa Pré-Clínica, Instituto do Cérebro do Rio Grande do Sul - Brain Institute (BraIns), Pontifícia Universidade Católica do Rio Grande do Sul - PUCRS, Porto Alegre, Brazil
| | - Gianina T Venturin
- Centro de Pesquisa Pré-Clínica, Instituto do Cérebro do Rio Grande do Sul - Brain Institute (BraIns), Pontifícia Universidade Católica do Rio Grande do Sul - PUCRS, Porto Alegre, Brazil
| | - Fernanda Ferreira
- Laboratório de Neuroproteção e Doenças Neurometabólicas, Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - Eduardo P Marques
- Laboratório de Neuroproteção e Doenças Neurometabólicas, Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - Letícia Rodrigues
- Laboratório de Proteínas Ligante de Cálcio do Sistema Nervoso Central, Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - Krista Wartchow
- Laboratório de Proteínas Ligante de Cálcio do Sistema Nervoso Central, Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - Marina C Leite
- Laboratório de Proteínas Ligante de Cálcio do Sistema Nervoso Central, Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - Carlos A Gonçalves
- Laboratório de Proteínas Ligante de Cálcio do Sistema Nervoso Central, Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - Angela T S Wyse
- Laboratório de Neuroproteção e Doenças Neurometabólicas, Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, Brazil
| | - Jaderson C Da Costa
- Centro de Pesquisa Pré-Clínica, Instituto do Cérebro do Rio Grande do Sul - Brain Institute (BraIns), Pontifícia Universidade Católica do Rio Grande do Sul - PUCRS, Porto Alegre, Brazil
| | - Jarbas R De Oliveira
- Laboratório de Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul - PUCRS, Porto Alegre, Brazil
| | - Gisele Branchini
- Programa de Pós-graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, Brazil
| | - Fernanda B Nunes
- Programa de Pós-graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA, Porto Alegre, Brazil; Laboratório de Biofísica Celular e Inflamação, Pontifícia Universidade Católica do Rio Grande do Sul - PUCRS, Porto Alegre, Brazil
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14
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Sant'Anna GDS, Brum IS, Branchini G, Pizzolato LS, Capp E, Corleta HVE. Ovarian steroid hormones modulate the expression of progesterone receptors and histone acetylation patterns in uterine leiomyoma cells. Gynecol Endocrinol 2017; 33:629-633. [PMID: 28300476 DOI: 10.1080/09513590.2017.1301924] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Uterine leiomyomas are the most common benign smooth muscle cell tumors in women. Estrogen (E2), progesterone (P4) and environmental factors play important roles in the development of these tumors. New treatments, such as mifepristone, have been proposed. We evaluated the gene expression of total (PRT) and B (PRB) progesterone receptors, and the histone acetyltransferase (HAT) and deacetylase (HDAC) activity after treatment with E2, P4 and mifepristone (RU486) in primary cell cultures from uterine leiomyoma and normal myometrium. Compared to myometrium, uterine leiomyoma cells showed an increase in PRT mRNA expression when treated with E2, and increase in PRB mRNA expression when treated with E2 and P4. Treatment with mifepristone had no significant impact on mRNA expression in these cells. The HDAC activity was higher in uterine leiomyoma compared to myometrial cells after treatment with E2 and E2 + P4 + mifepristone. HAT activity was barely detectable. Our results suggest that ovarian steroid hormones modulate PR, and mifepristone was unable to decrease PRT and PRB mRNA. The higher activity of HDAC leiomyoma cells could be involved in transcriptional repression of genes implicated in normal myometrium cell function, contributing to the maintenance and growth of uterine leiomyoma.
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Affiliation(s)
- Gabriela Dos Santos Sant'Anna
- a Programa de Pós-Graduação em Medicina: Ciências Médicas, Faculdade de Medicina da Universidade Federal do Rio Grande do Sul , Porto Alegre , Brazil
- b Laboratório de biologia molecular endócrino e tumoral , Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul , Porto Alegre , Brazil
- c Hospital de Clínicas de Porto Alegre , Porto Alegre , Brazil
| | - Ilma Simoni Brum
- b Laboratório de biologia molecular endócrino e tumoral , Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul , Porto Alegre , Brazil
- c Hospital de Clínicas de Porto Alegre , Porto Alegre , Brazil
| | - Gisele Branchini
- b Laboratório de biologia molecular endócrino e tumoral , Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul , Porto Alegre , Brazil
- c Hospital de Clínicas de Porto Alegre , Porto Alegre , Brazil
- d Programa de Pós-Graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre , Porto Alegre , Brazil , and
| | - Lolita Schneider Pizzolato
- b Laboratório de biologia molecular endócrino e tumoral , Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul , Porto Alegre , Brazil
- c Hospital de Clínicas de Porto Alegre , Porto Alegre , Brazil
| | - Edison Capp
- b Laboratório de biologia molecular endócrino e tumoral , Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul , Porto Alegre , Brazil
- c Hospital de Clínicas de Porto Alegre , Porto Alegre , Brazil
- e Departamento de Ginecologia e Obstetrícia , Faculdade de Medicina da UFRGS , Porto Alegre , Brazil
| | - Helena von Eye Corleta
- a Programa de Pós-Graduação em Medicina: Ciências Médicas, Faculdade de Medicina da Universidade Federal do Rio Grande do Sul , Porto Alegre , Brazil
- b Laboratório de biologia molecular endócrino e tumoral , Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul , Porto Alegre , Brazil
- c Hospital de Clínicas de Porto Alegre , Porto Alegre , Brazil
- e Departamento de Ginecologia e Obstetrícia , Faculdade de Medicina da UFRGS , Porto Alegre , Brazil
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15
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Fuhrmeister IP, Branchini G, Pimentel AM, Ferreira GD, Capp E, Brum IS, von Eye Corleta H. Human granulosa cells: insulin and insulin-like growth factor-1 receptors and aromatase expression modulation by metformin. Gynecol Obstet Invest 2014; 77:156-62. [PMID: 24603137 DOI: 10.1159/000358829] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Accepted: 01/18/2014] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIM Granulosa cells are the source of the most important ovarian steroids. Even in patients without significant improvement in metabolic parameters, metformin has apparently an important effect on the ovary. The aim of this study was to evaluate gene and protein expression of an insulin receptor (IR), insulin-like growth factor-1 (IGF1) receptor (IGF1R) and aromatase in granulosa cells treated with metformin and insulin. METHODS Luteinized granulosa cells were collected from 27 patients during in vitro fertilization procedures. Cells were isolated, stored in culture for 24 h and divided into four groups: control; metformin for 30 min, and metformin for 30 min plus insulin for 30 or 60 min. RESULTS IR and IGF1R mRNA expression was significantly enhanced by metformin but was not affected by insulin. Aromatase mRNA expression was significantly reduced in metformin-incubated cells following stimulation with insulin for 30 min. No statistical differences were found in IGF1R and aromatase protein expression, and IR expression was not detected. CONCLUSION A direct effect of metformin on the gene expression of IGF1R, IR and aromatase was observed. Further studies should investigate the role of IGF1R, IR and aromatase in ovarian physiology for a better understanding of the effect of metformin.
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16
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Andrade S, Arbo BD, Batista BAM, Neves AM, Branchini G, Brum IS, Barros HMT, Gomez R, Ribeiro MFM. Effect of progesterone on the expression of GABA(A) receptor subunits in the prefrontal cortex of rats: implications of sex differences and brain hemisphere. Cell Biochem Funct 2012; 30:696-700. [PMID: 22806324 DOI: 10.1002/cbf.2854] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 05/09/2012] [Accepted: 05/21/2012] [Indexed: 11/09/2022]
Abstract
Progesterone is a neuroactive hormone with non-genomic effects on GABA(A) receptors (GABA(A)R). Changes in the expression of GABA(A)R subunits are related to depressive-like behaviors in rats. Moreover, sex differences and depressive behaviors have been associated with prefrontal brain asymmetry in rodents and humans. Thus, our objective was to investigate the effect of progesterone on the GABA(A)R α1 and γ2 subunits mRNA expression in the right and left prefrontal cortex of diestrus female and male rats exposed to the forced swimming test (FST). Male and female rats (n = 8/group) were randomly selected to receive a daily dose of progesterone (0·4 mg·kg⁻¹) or vehicle, during two complete female estrous cycles (8-10 days). On the experiment day, male rats or diestrus female rats were euthanized 30 min after the FST. Our results showed that progesterone significantly increased the α1 subunit mRNA in both hemispheres of male and female rats. Moreover, there was an inverse correlation between depressive-like behaviors and GABA(A)R α1 subunit mRNA expression in the right hemisphere in female rats. Progesterone decreased the GABA(A)R γ2 mRNA expression only in the left hemisphere of male rats. Therefore, we conclude that the GABA(A) system displays an asymmetric distribution according to sex and that progesterone, at lower doses, presents an antidepressant effect after increasing the GABA(A) R α1 subunit expression in the right prefrontal cortex of female rats.
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Affiliation(s)
- Susie Andrade
- Department of Physiology, Universidade Federal do Rio Grande do Sul-UFRGS, Porto Alegre, Rio Grande do Sul Brazil
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17
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Araujo ASR, Diniz GP, Seibel FER, Branchini G, Ribeiro MFM, Brum IS, Khaper N, Barreto-Chaves MLM, Belló-Klein A. Reactive oxygen and nitrogen species balance in the determination of thyroid hormones-induced cardiac hypertrophy mediated by renin-angiotensin system. Mol Cell Endocrinol 2011; 333:78-84. [PMID: 21168472 DOI: 10.1016/j.mce.2010.12.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2010] [Revised: 12/10/2010] [Accepted: 12/11/2010] [Indexed: 10/18/2022]
Abstract
Role of reactive oxygen species (ROS)/nitric oxide (NO) balance and renin-angiotensin system in mediating cardiac hypertrophy in hyperthyroidism was evaluated in an in vivo and in vitro experimental model. Male Wistar rats were divided into four groups: control, thyroid hormone, vitamin E (or Trolox, its hydrosoluble analogue), thyroid hormone+vitamin E. Angiotensin II receptor (AT1/AT2) gene expression, immunocontent of AT1/AT2 receptors, angiotensinogen, NADPH oxidase (Nox2), and nitric oxide synthase isoforms, as well as ROS concentration (hydrogen peroxide and superoxide anion) were quantified in myocardium. Thyroid hormone increased ROS and NO metabolites, iNOS, nNOS and eNOS isoforms and it was accompanied by cardiac hypertrophy. AT1/AT2 expression and the immunocontent of angiotensinogen and Nox2 were enhanced by thyroid hormone. Antioxidants reduced ROS levels, Nox2, AT1/AT2, NOS isoforms and cardiac hypertrophy. In conclusion, ROS/NO balance may play a role in the control of thyroid hormone-induced cardiac hypertrophy mediated by renin-angiotensin system.
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MESH Headings
- Angiotensinogen/analysis
- Animals
- Blotting, Western
- Cardiomegaly/metabolism
- Cardiomegaly/pathology
- Cells, Cultured
- Chromans/pharmacology
- Hyperthyroidism/metabolism
- Male
- NADPH Oxidases/analysis
- Nitric Oxide/analysis
- Nitric Oxide Synthase/genetics
- Polymerase Chain Reaction
- Rats
- Rats, Wistar
- Reactive Nitrogen Species/metabolism
- Reactive Oxygen Species/metabolism
- Receptor, Angiotensin, Type 1/genetics
- Receptor, Angiotensin, Type 1/metabolism
- Receptor, Angiotensin, Type 2/genetics
- Receptor, Angiotensin, Type 2/metabolism
- Receptors, Angiotensin/genetics
- Renin-Angiotensin System/physiology
- Thyroid Hormones/metabolism
- Thyroid Hormones/pharmacology
- Vitamin E/pharmacology
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Affiliation(s)
- A S R Araujo
- Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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18
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Branchini G, Schneider L, Cericatto R, Capp E, Brum IS. Progesterone receptors A and B and estrogen receptor alpha expression in normal breast tissue and fibroadenomas. Endocrine 2009; 35:459-66. [PMID: 19367380 DOI: 10.1007/s12020-009-9176-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2008] [Revised: 02/13/2009] [Accepted: 03/24/2009] [Indexed: 10/20/2022]
Abstract
Fibroadenomas are the most common benign breast tumors, occurring mainly in young women. Their responses to the hormonal environment are similar to those of normal breast tissue, which suggests that steroid receptors may play a role in tumor development. We evaluated the gene and protein expression of progesterone receptors A and B (PRA and PRB) and the protein expression of estrogen receptor alpha (ER-alpha) in fibroadenoma samples, comparing with adjacent normal breast tissue, from 11 premenopausal women. Progesterone and estradiol levels were determined. No alterations in the PRs gene and protein expression and the ER-alpha protein expression were observed between the follicular and luteal phases, in normal breast versus fibroadenomas. Protein levels of PRA and PRB were higher in fibroadenomas compared to normal breast tissue (P = 0.038 and P = 0.031), while the PRs mRNA levels were similar in both tissues (P = 0.721 and P = 0.139). There were no differences in ER-alpha protein expression between normal breast tissue and fibroadenomas (P = 0.508). The PRA:PRB ratio was similar in the tissues, and also showed a strong correlation in both (r = 0.964, P = 0.0001). Our data suggest a role of PRs in the growth and development of fibroadenomas, although without alterations of the PRA:PRB ratio in these tumors. The absence of alterations in ER-alpha protein levels could be a characteristic behavior of fibroadenomas, unlike breast cancer.
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Affiliation(s)
- Gisele Branchini
- Laboratory of Endocrine and Tumoral Molecular Biology, Department of Physiology, Universidade Federal do Rio Grande do Sul, CEP 90 050-170, Porto Alegre, RS, Brazil
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Schneider L, Branchini G, Cericatto R, Capp E, Brum IS. Gene and protein expression of p53 and p21 in fibroadenomas and adjacent normal mammary tissue. Endocrine 2009; 35:118-22. [PMID: 19002614 DOI: 10.1007/s12020-008-9124-4] [Citation(s) in RCA: 7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2008] [Revised: 10/16/2008] [Accepted: 10/21/2008] [Indexed: 11/26/2022]
Abstract
The aim of this study was to compare p53 and p21 mRNA, and proteins levels between fibroadenomas and adjacent normal mammary tissue of women in reproductive age. A transversal study was performed. Fourteen patients who attended the Breast Service of the Hospital de Clínicas de Porto Alegre were assessed and submitted to surgical resection of fibroadenomas. Fragments of the central area of the fibroadenoma and adjacent normal mammary tissue were obtained. mRNA expression for genes p53 and p21 was evaluated by RT-PCR, and protein expression by the western blot. Paired analyses showed higher gene expression of p53 (P = 0.017) and p21 (P = 0.003), and a higher protein expression of p53 (P = 0.001) in fibroadenomas as compared to normal breast tissue. p21 protein expression was not different (P = 0.97) between the fibroadenoma and the adjacent normal mammary tissue samples. These results suggest the participation of p53 in the formation of fibroadenomas. The role of p21 in fibroadenomas remains to be defined.
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Affiliation(s)
- Lolita Schneider
- Department of Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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Bertoline AG, Branchini G. [Desensitization and treatment of caries by negative fluoride ions]. Majallat Tibb Alasnan Alsuriyah 1968; 4:40-53. [PMID: 5253204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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