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Carvalho AB, Kasai-Brunswick TH, Campos de Carvalho AC. Advanced cell and gene therapies in cardiology. EBioMedicine 2024; 103:105125. [PMID: 38640834 PMCID: PMC11052923 DOI: 10.1016/j.ebiom.2024.105125] [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: 10/31/2023] [Revised: 04/01/2024] [Accepted: 04/04/2024] [Indexed: 04/21/2024] Open
Abstract
We review the evidence for the presence of stem/progenitor cells in the heart and the preclinical and clinical data using diverse cell types for the therapy of cardiac diseases. We highlight the failure of adult stem/progenitor cells to ameliorate heart function in most cardiac diseases, with the possible exception of refractory angina. The use of pluripotent stem cell-derived cardiomyocytes is analysed as a viable alternative therapeutic option but still needs further research at preclinical and clinical stages. We also discuss the use of direct reprogramming of cardiac fibroblasts into cardiomyocytes and the use of extracellular vesicles as therapeutic agents in ischemic and non-ischemic cardiac diseases. Finally, gene therapies and genome editing for the treatment of hereditary cardiac diseases, ablation of genes responsible for atherosclerotic disease, or modulation of gene expression in the heart are discussed.
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Affiliation(s)
- Adriana Bastos Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa, Universidade Federal do RIo de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Tais Hanae Kasai-Brunswick
- Centro Nacional de Biologia Estrutural e Bioimagem (CENABIO), Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa, Universidade Federal do RIo de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Antonio Carlos Campos de Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Centro Nacional de Biologia Estrutural e Bioimagem (CENABIO), Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa, Universidade Federal do RIo de Janeiro, Rio de Janeiro, RJ, Brazil.
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2
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Nascimento PMC, Rodrigues Junior LF, Felix Mediano MF, Gonçalves da Silva V, Tura BR, Nogueira FCS, Domont G, Carvalho AB, de Carvalho ACC, Kasai-Brunswick TH, Mesquita CT, Junior HV, Rey HCV. Prevalence and impact of sarcopenia in individuals with heart failure with reduced ejection fraction (the SARC-HF study): A prospective observational study protocol. PLoS One 2024; 19:e0300918. [PMID: 38512827 PMCID: PMC10956824 DOI: 10.1371/journal.pone.0300918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 08/08/2023] [Accepted: 03/06/2024] [Indexed: 03/23/2024] Open
Abstract
Sarcopenia, a clinical syndrome primarily associated with reduced muscle mass in the elderly, has a negative impact on quality of life and survival. It can occur secondarily to other diseases such as heart failure (HF), a complex clinical syndrome with high morbidity and mortality. The simultaneous occurrence of these two conditions can worsen the prognosis of their carriers, especially in the most severe cases of HF, as in patients with reduced left ventricular ejection fraction (LVEF). However, due to the heterogeneous diagnostic criteria for sarcopenia, estimates of its prevalence present a wide variation, leading to new criteria having been recently proposed for its diagnosis, emphasizing muscle strength and function rather than skeletal muscle mass. The primary objective of this study is to evaluate the prevalence of sarcopenia and/or dynapenia in individuals with HF with reduced LVEF according to the most recent criteria, and compare the gene and protein expression of those patients with and without sarcopenia. The secondary objectives are to evaluate the association of sarcopenia and/or dynapenia with the risk of clinical events and death, quality of life, cardiorespiratory capacity, ventilatory efficiency, and respiratory muscle strength. The participants will answer questionnaires to evaluate sarcopenia and quality of life, and will undergo the following tests: handgrip strength, gait speed, dual-energy X-ray absorptiometry, respiratory muscle strength, cardiopulmonary exercise, as well as genomic and proteomic analysis, and dosage of N-terminal pro-B-type natriuretic peptide and growth differentiation factor-15. An association between sarcopenia and/or dynapenia with unfavorable clinical evolution is expected to be found, in addition to reduced quality of life, cardiorespiratory capacity, ventilatory efficiency, and respiratory muscle strength.
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Affiliation(s)
| | - Luiz Fernando Rodrigues Junior
- National Institute of Cardiology, Rio de Janeiro, Brazil
- Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | | | | | - Gilberto Domont
- Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Adriana Bastos Carvalho
- National Institute of Cardiology, Rio de Janeiro, Brazil
- Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Taís Hanae Kasai-Brunswick
- National Institute of Cardiology, Rio de Janeiro, Brazil
- Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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3
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Junior JBS, Parca RM, Carvalho AB. Advanced Therapy Products in Brazil: Regulatory Aspects. Adv Exp Med Biol 2023; 1430:117-133. [PMID: 37526845 DOI: 10.1007/978-3-031-34567-8_7] [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] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Advanced therapy products, considered special medications, require Anvisa approval for use and commercialization in Brazil. They include advanced cellular therapy products, tissue engineering products, and gene therapy products, which due to their complexity involve innovation and risks, optimized regulatory channels for their development and life cycle monitoring. The scientific elements and the compliance with applicable regulatory aspects are fundamental pillars for the advancement of clinical trials, the positive evidence of the benefit-risk profile, and the definition of the critical quality attributes, from the perspective of making safe, efficacy, and high-quality products available to the population. The approval models of these products in Brazil adapt to the specificities and characteristics of the technology and the patient target population, with accelerated regulatory analyses, use in emergency situations by risk controls and specific monitoring mechanisms, principally those related to rare diseases without other therapeutic alternatives. The opportune access to the advance therapy product with safety, efficacy, and quality involves innovative normative elements that include the long-term follow-up of the safety and efficacy and of the adaptive pharmacovigilance requisites, as well as the traceability mechanisms for starting materials, products, and patients.
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Affiliation(s)
- João Batista Silva Junior
- Department of Pharmaceutical Sciences, College of Health Sciences, University of Brasilia, Brasilia, Brazil.
- National Health Surveillance Agency (Anvisa), Brasilia, Brazil.
- National Network of Experts in Advanced Therapies (Reneta), Anvisa, Brasilia, Brazil.
| | - Renata Miranda Parca
- National Health Surveillance Agency (Anvisa), Brasilia, Brazil
- National Network of Experts in Advanced Therapies (Reneta), Anvisa, Brasilia, Brazil
| | - Adriana Bastos Carvalho
- National Network of Experts in Advanced Therapies (Reneta), Anvisa, Brasilia, Brazil
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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4
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Monnerat G, Kasai-Brunswick TH, Asensi KD, Silva dos Santos D, Barbosa RAQ, Cristina Paccola Mesquita F, Calvancanti Albuquerque JP, Raphaela PF, Wendt C, Miranda K, Domont GB, Nogueira FCS, Bastos Carvalho A, Campos de Carvalho AC. Modelling premature cardiac aging with induced pluripotent stem cells from a hutchinson-gilford Progeria Syndrome patient. Front Physiol 2022; 13:1007418. [PMID: 36505085 PMCID: PMC9726722 DOI: 10.3389/fphys.2022.1007418] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 11/07/2022] [Indexed: 11/24/2022] Open
Abstract
Hutchinson-Gilford Progeria Syndrome (HGPS) is a rare genetic disorder that causes accelerated aging and a high risk of cardiovascular complications. However, the underlying mechanisms of cardiac complications of this syndrome are not fully understood. This study modeled HGPS using cardiomyocytes (CM) derived from induced pluripotent stem cells (iPSC) derived from a patient with HGPS and characterized the biophysical, morphological, and molecular changes found in these CM compared to CM derived from a healthy donor. Electrophysiological recordings suggest that the HGPS-CM was functional and had normal electrophysiological properties. Electron tomography showed nuclear morphology alteration, and the 3D reconstruction of electron tomography images suggests structural abnormalities in HGPS-CM mitochondria, however, there was no difference in mitochondrial content as measured by Mitotracker. Immunofluorescence indicates nuclear morphological alteration and confirms the presence of Troponin T. Telomere length was measured using qRT-PCR, and no difference was found in the CM from HGPS when compared to the control. Proteomic analysis was carried out in a high-resolution system using Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS). The proteomics data show distinct group separations and protein expression differences between HGPS and control-CM, highlighting changes in ribosomal, TCA cycle, and amino acid biosynthesis, among other modifications. Our findings show that iPSC-derived cardiomyocytes from a Progeria Syndrome patient have significant changes in mitochondrial morphology and protein expression, implying novel mechanisms underlying premature cardiac aging.
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Affiliation(s)
- Gustavo Monnerat
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil,Laboratory of Proteomics, LADETEC, Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tais Hanae Kasai-Brunswick
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil,National Center of Structural Biology and Bioimaging, CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Karina Dutra Asensi
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Danubia Silva dos Santos
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | | | - Pires Ferreira Raphaela
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Camila Wendt
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Kildare Miranda
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gilberto Barbosa Domont
- Proteomic Unit, Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fábio César Sousa Nogueira
- Laboratory of Proteomics, LADETEC, Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil,Proteomic Unit, Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Adriana Bastos Carvalho
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Antonio Carlos Campos de Carvalho
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil,National Science and Technology Institute in Regenerative Medicine, Rio de Janeiro, Brazil,*Correspondence: Antonio Carlos Campos de Carvalho,
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5
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Monnerat G, Alarcón ML, Vasconcellos LR, Hochman-Mendez C, Brasil G, Bassani RA, Casis O, Malan D, Travassos LH, Sepúlveda M, Burgos JI, Vila-Petroff M, Dutra FF, Bozza MT, Paiva CN, Carvalho AB, Bonomo A, Fleischmann BK, de Carvalho ACC, Medei E. Author Correction: Macrophage-dependent IL-1β production induces cardiac arrhythmias in diabetic mice. Nat Commun 2021; 12:7261. [PMID: 34880249 PMCID: PMC8654942 DOI: 10.1038/s41467-021-27508-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Affiliation(s)
- Gustavo Monnerat
- Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Micaela L Alarcón
- Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Luiz R Vasconcellos
- LIRS-Laboratory of Immunoreceptors and Signaling, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Camila Hochman-Mendez
- Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Guilherme Brasil
- Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Rosana A Bassani
- Center for Biomedical Engineering, University of Campinas, Campinas, 13.083-970, Brazil
| | - Oscar Casis
- Departamento de Fisiologı ́a, Facultad de Farmacia, Universidad del País Vasco UPV/EHU, 01006, Vitoria, Spain
| | - Daniela Malan
- Institute of Physiology I, Life and Brain Center, University of Bonn, Bonn, D-53127, Germany
| | - Leonardo H Travassos
- LIRS-Laboratory of Immunoreceptors and Signaling, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Marisa Sepúlveda
- Centro de Investigaciones Cardiovasculares, Conicet La Plata, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, 1900, Argentina
| | - Juan Ignacio Burgos
- Centro de Investigaciones Cardiovasculares, Conicet La Plata, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, 1900, Argentina
| | - Martin Vila-Petroff
- Centro de Investigaciones Cardiovasculares, Conicet La Plata, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, 1900, Argentina
| | - Fabiano F Dutra
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Marcelo T Bozza
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Claudia N Paiva
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Adriana Bastos Carvalho
- Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Adriana Bonomo
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
- FIOCANCER/ VPPLR/FIOCRUZ, FIOCRUZ-Manguinhos, Rio de Janeiro, 21040-360, Brazil
| | - Bernd K Fleischmann
- Institute of Physiology I, Life and Brain Center, University of Bonn, Bonn, D-53127, Germany
| | - Antonio Carlos Campos de Carvalho
- Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
- National Center for Structural Biology and Bioimaging-CENABIO/UFRJ, Rio de Janeiro, 21941-902, Brazil
| | - Emiliano Medei
- Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil.
- National Center for Structural Biology and Bioimaging-CENABIO/UFRJ, Rio de Janeiro, 21941-902, Brazil.
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6
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Kasai-Brunswick TH, Carvalho AB, Campos de Carvalho AC. Stem cell therapies in cardiac diseases: Current status and future possibilities. World J Stem Cells 2021; 13:1231-1247. [PMID: 34630860 PMCID: PMC8474720 DOI: 10.4252/wjsc.v13.i9.1231] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 07/26/2021] [Accepted: 08/10/2021] [Indexed: 02/06/2023] Open
Abstract
Cardiovascular diseases represent the world’s leading cause of death. In this heterogeneous group of diseases, ischemic cardiomyopathies are the most devastating and prevalent, estimated to cause 17.9 million deaths per year. Despite all biomedical efforts, there are no effective treatments that can replace the myocytes lost during an ischemic event or progression of the disease to heart failure. In this context, cell therapy is an emerging therapeutic alternative to treat cardiovascular diseases by cell administration, aimed at cardiac regeneration and repair. In this review, we will cover more than 30 years of cell therapy in cardiology, presenting the main milestones and drawbacks in the field and signaling future challenges and perspectives. The outcomes of cardiac cell therapies are discussed in three distinct aspects: The search for remuscularization by replacement of lost cells by exogenous adult cells, the endogenous stem cell era, which pursued the isolation of a progenitor with the ability to induce heart repair, and the utilization of pluripotent stem cells as a rich and reliable source of cardiomyocytes. Acellular therapies using cell derivatives, such as microvesicles and exosomes, are presented as a promising cell-free therapeutic alternative.
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Affiliation(s)
- Tais Hanae Kasai-Brunswick
- National Center of Structural Biology and Bioimaging, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil
- National Institute of Science and Technology in Regenerative Medicine, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil
| | - Adriana Bastos Carvalho
- National Institute of Science and Technology in Regenerative Medicine, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil
| | - Antonio Carlos Campos de Carvalho
- National Center of Structural Biology and Bioimaging, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil
- National Institute of Science and Technology in Regenerative Medicine, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil
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7
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Pires-Ferreira R, Pereira VTN, Barbosa RAQ, Gubert F, Barbosa HCS, De Figueiredo AF, Moll RJ, Carvalho AB, Kasai-Brunswick TH, Campos-de-Carvalho AC. EFFECTS OF DOXORUBICIN ON HUMAN INDUCED PLURIPOTENT STEM CELL-DERIVED CARDIOMYOCYTES OBTAINED FROM PATIENTS SENSITIVE AND RESISTANT TO ANTHRACYCLINE-INDUCED CARDIOTOXICITY. Cytotherapy 2021. [DOI: 10.1016/j.jcyt.2021.02.041] [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: 11/30/2022]
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Abstract
Heart failure has reached epidemic proportions with the advances in cardiovascular therapies for ischemic heart diseases and the progressive aging of the world population. Efficient pharmacological therapies are available for treating heart failure, but unfortunately, even with optimized therapy, prognosis is often poor. Their last therapeutic option is, therefore, a heart transplantation with limited organ supply and complications related to immunosuppression. In this setting, cell therapies have emerged as an alternative. Many clinical trials have now been performed using different cell types and injection routes. In this perspective, we will analyze the results of such trials and discuss future perspectives for cell therapies as an efficacious treatment of heart failure.
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Affiliation(s)
- Antonio Carlos Campos de Carvalho
- Laboratory of Cellular and Molecular Cardiology, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- National Center of Structural Biology and Bioimaging (CENABIO), Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- National Institute of Science and Technology in Regenerative Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- *Correspondence: Antonio Carlos Campos de Carvalho,
| | - Tais H. Kasai-Brunswick
- National Center of Structural Biology and Bioimaging (CENABIO), Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- National Institute of Science and Technology in Regenerative Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Adriana Bastos Carvalho
- Laboratory of Cellular and Molecular Cardiology, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- National Institute of Science and Technology in Regenerative Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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9
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Hochman-Mendez C, Pereira de Campos DB, Pinto RS, Mendes BJDS, Rocha GM, Monnerat G, Weissmuller G, Sampaio LC, Carvalho AB, Taylor DA, de Carvalho ACC. Tissue-engineered human embryonic stem cell-containing cardiac patches: evaluating recellularization of decellularized matrix. J Tissue Eng 2020; 11:2041731420921482. [PMID: 32742631 PMCID: PMC7375712 DOI: 10.1177/2041731420921482] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 03/27/2020] [Indexed: 02/05/2023] Open
Abstract
Decellularized cardiac extracellular matrix scaffolds with preserved composition and architecture can be used in tissue engineering to reproduce the complex cardiac extracellular matrix. However, evaluating the extent of cardiomyocyte repopulation of decellularized cardiac extracellular matrix scaffolds after recellularization attempts is challenging. Here, we describe a unique combination of biochemical, biomechanical, histological, and physiological parameters for quantifying recellularization efficiency of tissue-engineered cardiac patches compared with native cardiac tissue. Human embryonic stem cell-derived cardiomyocytes were seeded into rat heart atrial and ventricular decellularized cardiac extracellular matrix patches. Confocal and atomic force microscopy showed cell integration within the extracellular matrix basement membrane that was accompanied by restoration of native cardiac tissue passive mechanical properties. Multi-electrode array and immunostaining (connexin 43) were used to determine synchronous field potentials with electrical coupling. Myoglobin content (~60%) and sarcomere length measurement (>45% vs 2D culture) were used to evaluate cardiomyocyte maturation of integrated cells. The combination of these techniques allowed us to demonstrate that as cellularization efficiency improves, cardiomyocytes mature and synchronize electrical activity, and tissue mechanical/biochemical properties improve toward those of native tissue.
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Affiliation(s)
- Camila Hochman-Mendez
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Regenerative Medicine Research, Texas Heart Institute, Houston, TX, USA
| | - Dilza Balteiro Pereira de Campos
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Regenerative Medicine Research, Texas Heart Institute, Houston, TX, USA
| | - Rafael Serafim Pinto
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Gustavo Miranda Rocha
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gustavo Monnerat
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gilberto Weissmuller
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luiz C Sampaio
- Regenerative Medicine Research, Texas Heart Institute, Houston, TX, USA
| | - Adriana Bastos Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- National Institute of Science and Technology for Regenerative Medicine, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Doris A Taylor
- Regenerative Medicine Research, Texas Heart Institute, Houston, TX, USA
- Doris A Taylor, Regenerative Medicine Research, Texas Heart Institute, 6770 Bertner Avenue, MC 1-135, Houston, TX 77030, USA.
| | - Antonio Carlos Campos de Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- National Institute of Science and Technology for Regenerative Medicine, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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10
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Neiman G, Scarafía MA, La Greca A, Santín Velazque NL, Garate X, Waisman A, Möbbs AM, Kasai-Brunswick TH, Mesquita F, Martire-Greco D, Moro LN, Luzzani C, Bastos Carvalho A, Sevlever GE, Campos de Carvalho A, Guberman AS, Miriuka SG. Integrin alpha-5 subunit is critical for the early stages of human pluripotent stem cell cardiac differentiation. Sci Rep 2019; 9:18077. [PMID: 31792288 PMCID: PMC6889169 DOI: 10.1038/s41598-019-54352-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 11/12/2019] [Indexed: 02/08/2023] Open
Abstract
The stem cell niche has a strong influence in the differentiation potential of human pluripotent stem cells with integrins playing a major role in communicating cells with the extracellular environment. However, it is not well understood how interactions between integrins and the extracellular matrix are involved in cardiac stem cell differentiation. To evaluate this, we performed a profile of integrins expression in two stages of cardiac differentiation: mesodermal progenitors and cardiomyocytes. We found an active regulation of the expression of different integrins during cardiac differentiation. In particular, integrin α5 subunit showed an increased expression in mesodermal progenitors, and a significant downregulation in cardiomyocytes. To analyze the effect of α5 subunit, we modified its expression by using a CRISPRi technique. After its downregulation, a significant impairment in the process of epithelial-to-mesenchymal transition was seen. Early mesoderm development was significantly affected due to a downregulation of key genes such as T Brachyury and TBX6. Furthermore, we observed that repression of integrin α5 during early stages led to a reduction in cardiomyocyte differentiation and impaired contractility. In summary, our results showed the link between changes in cell identity with the regulation of integrin α5 expression through the alteration of early stages of mesoderm commitment.
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Affiliation(s)
| | | | | | | | | | | | | | - Tais Hanae Kasai-Brunswick
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Fernanda Mesquita
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | | | | | | | - Adriana Bastos Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | | | - Antonio Campos de Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Alejandra S Guberman
- Laboratorio de Regulación Génica en Células Madre, Departamento de Química Biológica y Departamento de Fisiología y Biología Molecular y Celular, Facultad de Ciencias Exactas y Naturales, UBA, Buenos Aires, Argentina
| | - Santiago G Miriuka
- LIAN-CONICET, FLENI, Buenos Aires, Argentina.
- Consejo Nacional sobre Investgaciones Científicas y Técnias (CONICET), Buenos Aires, Argentina.
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11
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Lindoso RS, Kasai-Brunswick TH, Monnerat Cahli G, Collino F, Bastos Carvalho A, Campos de Carvalho AC, Vieyra A. Proteomics in the World of Induced Pluripotent Stem Cells. Cells 2019; 8:cells8070703. [PMID: 31336746 PMCID: PMC6678893 DOI: 10.3390/cells8070703] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 06/24/2019] [Accepted: 06/25/2019] [Indexed: 02/05/2023] Open
Abstract
Omics approaches have significantly impacted knowledge about molecular signaling pathways driving cell function. Induced pluripotent stem cells (iPSC) have revolutionized the field of biological sciences and proteomics and, in particular, has been instrumental in identifying key elements operating during the maintenance of the pluripotent state and the differentiation process to the diverse cell types that form organisms. This review covers the evolution of conceptual and methodological strategies in proteomics; briefly describes the generation of iPSC from a historical perspective, the state-of-the-art of iPSC-based proteomics; and compares data on the proteome and transcriptome of iPSC to that of embryonic stem cells (ESC). Finally, proteomics of healthy and diseased cells and organoids differentiated from iPSC are analyzed.
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Affiliation(s)
- Rafael Soares Lindoso
- Carlos Chagas Filho Institute of Biophysics and National Center for Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro 21941-102, Brazil
| | - Tais H Kasai-Brunswick
- Carlos Chagas Filho Institute of Biophysics and National Center for Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro 21941-102, Brazil
| | - Gustavo Monnerat Cahli
- Carlos Chagas Filho Institute of Biophysics and National Center for Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro 21941-102, Brazil
- Laboratory of Proteomics, LADETEC, Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro 21941-598, Brazil
| | - Federica Collino
- Carlos Chagas Filho Institute of Biophysics and National Center for Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro 21941-102, Brazil
- Department of Biomedical Sciences, University of Padova, 35131 Padua, Italy
| | - Adriana Bastos Carvalho
- Carlos Chagas Filho Institute of Biophysics and National Center for Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro 21941-102, Brazil
| | - Antonio Carlos Campos de Carvalho
- Carlos Chagas Filho Institute of Biophysics and National Center for Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro 21941-102, Brazil.
| | - Adalberto Vieyra
- Carlos Chagas Filho Institute of Biophysics and National Center for Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro 21941-102, Brazil.
- Graduate Program in Translational Biomedicine, Grande Rio University, Duque de Caxias 25071-202, Brazil.
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Kasai-Brunswick TH, Silva Dos Santos D, Ferreira RP, Araujo DS, Dias GM, Coutinho JLA, Cruz FESF, Sternick EB, Gubert F, Oliveira JCG, Vaz IM, Borgonovo T, Brofman PRS, Moura-Neto RS, Silva R, Campos-de-Carvalho AC, Carvalho AB. Generation of patient-specific induced pluripotent stem cell lines from one patient with Jervell and Lange-Nielsen syndrome, one with type 1 long QT syndrome and two healthy relatives. Stem Cell Res 2018; 31:174-180. [PMID: 30099333 DOI: 10.1016/j.scr.2018.07.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 03/20/2018] [Revised: 06/15/2018] [Accepted: 07/13/2018] [Indexed: 02/08/2023] Open
Abstract
Four human iPSC cell lines (one Jervell and Lange-Nielsen Syndrome, one Long QT Syndrome-type 1 and two healthy controls) were generated from peripheral blood obtained from donors belonging to the same family. CytoTune™-iPS 2.0 Sendai Reprogramming Kit (containing OCT3/4, KLF4, SOX2 and cMYC as reprogramming factors) was used to generate all cell lines. The four iPSCs have normal karyotype, express pluripotency markers as determined by RT-PCR and flow cytometry and differentiated spontaneously in vitro into cells of the three germ layers, confirming their pluripotent capacity.
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Affiliation(s)
- T H Kasai-Brunswick
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
| | - D Silva Dos Santos
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - R P Ferreira
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - D S Araujo
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - G M Dias
- Instituto Nacional de Cardiologia, Rio de Janeiro, RJ, Brazil
| | - J L A Coutinho
- Instituto Nacional de Cardiologia, Rio de Janeiro, RJ, Brazil
| | - F E S F Cruz
- Instituto Nacional de Cardiologia, Rio de Janeiro, RJ, Brazil
| | - E B Sternick
- Faculdade de Ciências Médicas de Minas Gerais, Belo Horizonte, MG, Brazil
| | - F Gubert
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - J C G Oliveira
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - I M Vaz
- Pontifícia Universidade Católica do Paraná, Curitiba, PR, Brazil
| | - T Borgonovo
- Pontifícia Universidade Católica do Paraná, Curitiba, PR, Brazil
| | - P R S Brofman
- Pontifícia Universidade Católica do Paraná, Curitiba, PR, Brazil
| | - R S Moura-Neto
- Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - R Silva
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - A C Campos-de-Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa, Rio de Janeiro, RJ, Brazil
| | - A B Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa, Rio de Janeiro, RJ, Brazil
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13
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Silva dos Santos D, Brasil GV, Ramos IPR, Mesquita FCP, Kasai-Brunswick TH, Christie MLA, Cahli GM, Barbosa RAQ, da Cunha ST, Pereira JX, Medei E, Campos de Carvalho AC, Carvalho AB, Goldenberg RCDS. Embryonic stem cell-derived cardiomyocytes for the treatment of doxorubicin-induced cardiomyopathy. Stem Cell Res Ther 2018; 9:30. [PMID: 29402309 PMCID: PMC5799903 DOI: 10.1186/s13287-018-0788-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 01/19/2018] [Accepted: 01/23/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Doxorubicin (Dox) is a chemotherapy drug with limited application due to cardiotoxicity that may progress to heart failure. This study aims to evaluate the role of cardiomyocytes derived from mouse embryonic stem cells (CM-mESCs) in the treatment of Dox-induced cardiomyopathy (DIC) in mice. METHODS The mouse embryonic stem cell (mESC) line E14TG2A was characterized by karyotype analysis, gene expression using RT-PCR and immunofluorescence. Cells were transduced with luciferase 2 and submitted to cardiac differentiation. Total conditioned medium (TCM) from the CM-mESCs was collected for proteomic analysis. To establish DIC in CD1 mice, Dox (7.5 mg/kg) was administered once a week for 3 weeks, resulting in a cumulative Dox dose of 22.5 mg/kg. At the fourth week, a group of animals was injected intramyocardially with CM-mESCs (8 × 105 cells). Cells were tracked by a bioluminescence assay, and the body weight, echocardiogram, electrocardiogram and number of apoptotic cardiomyocytes were evaluated. RESULTS mESCs exhibited a normal karyotype and expressed pluripotent markers. Proteomic analysis of TCM showed proteins related to the negative regulation of cell death. CM-mESCs presented ventricular action potential characteristics. Mice that received Dox developed heart failure and showed significant differences in body weight, ejection fraction (EF), end-systolic volume (ESV), stroke volume (SV), heart rate and QT and corrected QT (QTc) intervals when compared to the control group. After cell or placebo injection, the Dox + CM-mESC group showed significant increases in EF and SV when compared to the Dox + placebo group. Reduction in ESV and QT and QTc intervals in Dox + CM-mESC-treated mice was observed at 5 or 30 days after cell treatment. Cells were detected up to 11 days after injection. The Dox + CM-mESC group showed a significant reduction in the percentage of apoptotic cardiomyocytes in the hearts of mice when compared to the Dox + placebo group. CONCLUSIONS CM-mESC transplantation improves cardiac function in mice with DIC.
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Affiliation(s)
- Danúbia Silva dos Santos
- 0000 0001 2294 473Xgrid.8536.8Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho 373 Bloco G—Sala G2-053, Rio de Janeiro, RJ 21941-902 Brazil
| | - Guilherme Visconde Brasil
- 0000 0001 2294 473Xgrid.8536.8Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho 373 Bloco G—Sala G2-053, Rio de Janeiro, RJ 21941-902 Brazil
| | - Isalira Peroba Rezende Ramos
- 0000 0001 2294 473Xgrid.8536.8Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho 373 Bloco G—Sala G2-053, Rio de Janeiro, RJ 21941-902 Brazil
- 0000 0001 2294 473Xgrid.8536.8Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Bloco M, Rio de Janeiro, RJ 21941-902 Brazil
| | - Fernanda Cristina Paccola Mesquita
- 0000 0001 2294 473Xgrid.8536.8Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho 373 Bloco G—Sala G2-053, Rio de Janeiro, RJ 21941-902 Brazil
| | - Tais Hanae Kasai-Brunswick
- 0000 0001 2294 473Xgrid.8536.8Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho 373 Bloco G—Sala G2-053, Rio de Janeiro, RJ 21941-902 Brazil
- 0000 0001 2294 473Xgrid.8536.8Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Bloco M, Rio de Janeiro, RJ 21941-902 Brazil
| | - Michelle Lopes Araújo Christie
- 0000 0001 2294 473Xgrid.8536.8Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho 373 Bloco G—Sala G2-053, Rio de Janeiro, RJ 21941-902 Brazil
| | - Gustavo Monnerat Cahli
- 0000 0001 2294 473Xgrid.8536.8Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho 373 Bloco G—Sala G2-053, Rio de Janeiro, RJ 21941-902 Brazil
| | - Raiana Andrade Quintanilha Barbosa
- 0000 0001 2294 473Xgrid.8536.8Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho 373 Bloco G—Sala G2-053, Rio de Janeiro, RJ 21941-902 Brazil
| | - Sandro Torrentes da Cunha
- 0000 0001 2294 473Xgrid.8536.8Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho 373 Bloco G—Sala G2-053, Rio de Janeiro, RJ 21941-902 Brazil
| | - Jonathas Xavier Pereira
- 0000 0001 2294 473Xgrid.8536.8Departamento de Patologia—Faculdade de Medicina, Hospital Universitário Clementino Fraga Filho, Universiade Federal do Rio de Janeiro, Av. Rodolpho Paulo Rocco, 255, Sub-solo, SAP, Rio de Janeiro, RJ 21910-590 Brazil
| | - Emiliano Medei
- 0000 0001 2294 473Xgrid.8536.8Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho 373 Bloco G—Sala G2-053, Rio de Janeiro, RJ 21941-902 Brazil
- 0000 0001 2294 473Xgrid.8536.8Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Bloco M, Rio de Janeiro, RJ 21941-902 Brazil
- Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa, Av. Carlos Chagas Filho 373, Rio de Janeiro, RJ 21941-902 Brazil
| | - Antonio Carlos Campos de Carvalho
- 0000 0001 2294 473Xgrid.8536.8Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho 373 Bloco G—Sala G2-053, Rio de Janeiro, RJ 21941-902 Brazil
- 0000 0001 2294 473Xgrid.8536.8Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Bloco M, Rio de Janeiro, RJ 21941-902 Brazil
- Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa, Av. Carlos Chagas Filho 373, Rio de Janeiro, RJ 21941-902 Brazil
| | - Adriana Bastos Carvalho
- 0000 0001 2294 473Xgrid.8536.8Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho 373 Bloco G—Sala G2-053, Rio de Janeiro, RJ 21941-902 Brazil
- 0000 0001 2294 473Xgrid.8536.8Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Bloco M, Rio de Janeiro, RJ 21941-902 Brazil
- Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa, Av. Carlos Chagas Filho 373, Rio de Janeiro, RJ 21941-902 Brazil
| | - Regina Coeli dos Santos Goldenberg
- 0000 0001 2294 473Xgrid.8536.8Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho 373 Bloco G—Sala G2-053, Rio de Janeiro, RJ 21941-902 Brazil
- 0000 0001 2294 473Xgrid.8536.8Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Bloco M, Rio de Janeiro, RJ 21941-902 Brazil
- Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa, Av. Carlos Chagas Filho 373, Rio de Janeiro, RJ 21941-902 Brazil
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Abstract
In this review of cell therapies in Chagas disease, we cover aspects related to the disease, its treatment and world demographics, before proceeding to describe the preclinical and clinical trials performed using cell therapies in the search for an alternative therapy for the most severe and lethal form of this disease, chronic chagasic cardiomyopathy.
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Affiliation(s)
- Adriana Bastos Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil; Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil; Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa, Rio de Janeiro, Brazil
| | - Regina Coeli Dos Santos Goldenberg
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil; Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil; Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa, Rio de Janeiro, Brazil
| | - Antonio Carlos Campos de Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil; Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil; Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa, Rio de Janeiro, Brazil.
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15
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Irion CI, Paredes BD, Brasil GV, da Cunha ST, Paula LF, Carvalho AR, de Carvalho ACC, Carvalho AB, Goldenberg RCDS. Bone marrow cell migration to the heart in a chimeric mouse model of acute chagasic disease. Mem Inst Oswaldo Cruz 2017; 112:551-560. [PMID: 28767980 PMCID: PMC5530547 DOI: 10.1590/0074-02760160526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 03/14/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Chagas disease is a public health problem caused by infection with the protozoan Trypanosoma cruzi. There is currently no effective therapy for Chagas disease. Although there is some evidence for the beneficial effect of bone marrow-derived cells in chagasic disease, the mechanisms underlying their effects in the heart are unknown. Reports have suggested that bone marrow cells are recruited to the chagasic heart; however, studies using chimeric mouse models of chagasic cardiomyopathy are rare. OBJECTIVES The aim of this study was to investigate the migration of bone marrow cells to the heart after T. cruzi infection in a model of chagasic disease in chimeric mice. METHODS To obtain chimerical mice, wild-type (WT) C57BL6 mice were exposed to full body irradiation (7 Gy), causing bone marrow ablation. Then, bone marrow cells from green fluorescent protein (GFP)-transgenic mice were infused into the mice. Graft effectiveness was confirmed by flow cytometry. Experimental mice were divided into four groups: (i) infected chimeric (iChim) mice; (ii) infected WT (iWT) mice, both of which received 3 × 104 trypomastigotes of the Brazil strain; (iii) non-infected chimeric (Chim) mice; and (iv) non-infected WT mice. FINDINGS At one-month post-infection, iChim and iWT mice showed first degree atrioventricular block with decreased heart rate and treadmill exercise parameters compared to those in the non-infected groups. MAIN CONCLUSIONS iChim mice showed an increase in parasitaemia, myocarditis, and the presence of amastigote nests in the heart tissue compared to iWT mice. Flow cytometry analysis did not detect haematopoietic progenitor cells in the hearts of infected mice. Furthermore, GFP+ cardiomyocytes were not detected in the tissues of chimeric mice.
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Seara FDAC, Barbosa RAQ, de Oliveira DF, Gran da Silva DLS, Carvalho AB, Freitas Ferreira AC, Matheus Nascimento JH, Olivares EL. Administration of anabolic steroid during adolescence induces long-term cardiac hypertrophy and increases susceptibility to ischemia/reperfusion injury in adult Wistar rats. J Steroid Biochem Mol Biol 2017; 171:34-42. [PMID: 28179209 DOI: 10.1016/j.jsbmb.2017.01.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [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: 11/09/2016] [Revised: 01/09/2017] [Accepted: 01/19/2017] [Indexed: 01/27/2023]
Abstract
Chronic administration of anabolic androgenic steroids (AAS) in adult rats results in cardiac hypertrophy and increased susceptibility to myocardial ischemia/reperfusion (IR) injury. Molecular analyses demonstrated that hyperactivation of type 1 angiotensin II (AT1) receptor mediates cardiac hypertrophy induced by AAS and also induces down-regulation of myocardial ATP-sensitive potassium channel (KATP), resulting in loss of exercise-induced cardioprotection. Exposure to AAS during adolescence promoted long-term cardiovascular dysfunctions, such as dysautonomia. We tested the hypothesis that chronic AAS exposure in the pre/pubertal phase increases the susceptibility to myocardial ischemia/reperfusion (IR) injury in adult rats. Male Wistar rats (26day old) were treated with vehicle (Control, n=12) or testosterone propionate (TP) (AAS, 5mgkg-1 n=12) 5 times/week during 5 weeks. At the end of AAS exposure, rats underwent 23days of washout period and were submitted to euthanasia. Langendorff-perfused hearts were submitted to IR injury and evaluated for mechanical dysfunctions and infarct size. Molecular analysis was performed by mRNA levels of α-myosin heavy chain (MHC), βMHC and brain-derived natriuretic peptide (BNP), ryanodine receptor (RyR2) and sarcoplasmic reticulum calcium ATPase 2a (SERCA2a) by quantitative RT-PCR (qRT-PCR). The expression of AT1 receptor and KATP channel subunits (Kir6.1 and SURa) was analyzed by qRT-PCR and Western Blot. NADPH oxidase (Nox)-related reactive oxygen species generation was assessed by spectrofluorimetry. The expression of antioxidant enzymes was measured by qRT-PCR in order to address a potential role of redox unbalance. AAS exposure promoted long-term cardiac hypertrophy characterized by increased expression of βMHC and βMHC/αMHC ratio. Baseline derivative of pressure (dP/dt) was impaired by AAS exposure. Postischemic recovery of mechanical properties was impaired (decreased left ventricle [LV] developed pressure and maximal dP/dt; increased LV end-diastolic pressure and minimal dP/dt) and infarct size was larger in the AAS group. Catalase mRNA expression was significantly decreased in the AAS group. In conclusion, chronic administration of AAS during adolescence promoted long-term pathological cardiac hypertrophy and persistent increase in the susceptibility to myocardial IR injury possible due to disturbances on catalase expression.
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Affiliation(s)
- Fernando de Azevedo Cruz Seara
- Laboratory of Cardiovascular Physiology and Pharmacology, Department of Physiological Sciences, Institute of Biology, Federal Rural University of Rio de Janeiro, 23890-000 Seropedica, RJ, Brazil; Laboratory of Cardiac Electrophysiology, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-902 RJ, Brazil
| | - Raiana Andrade Quintanilha Barbosa
- Laboratory of Cellular and Molecular Cardiology, Carlos Chagas Filho Biophysics Institute, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-902 RJ, Brazil
| | - Dahienne Ferreira de Oliveira
- Laboratory of Cardiac Electrophysiology, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-902 RJ, Brazil
| | - Diorney Luiz Souza Gran da Silva
- Laboratory of Endocrine Physiology, Carlos Chagas Filho Biophysics Institute, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-902 RJ, Brazil
| | - Adriana Bastos Carvalho
- Laboratory of Cellular and Molecular Cardiology, Carlos Chagas Filho Biophysics Institute, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-902 RJ, Brazil
| | - Andrea Claudia Freitas Ferreira
- Laboratory of Endocrine Physiology, Carlos Chagas Filho Biophysics Institute, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-902 RJ, Brazil; NUMPEX-Bio, Pólo de Xerém, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-902 RJ, Brazil
| | - José Hamilton Matheus Nascimento
- Laboratory of Cardiac Electrophysiology, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-902 RJ, Brazil
| | - Emerson Lopes Olivares
- Laboratory of Cardiovascular Physiology and Pharmacology, Department of Physiological Sciences, Institute of Biology, Federal Rural University of Rio de Janeiro, 23890-000 Seropedica, RJ, Brazil.
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Coelho de Oliveira VC, Silva dos Santos D, Vairo L, Kasai Brunswick TH, Pimentel LAS, Carvalho AB, Campos de Carvalho AC, Goldenberg RCDS. Hair follicle-derived mesenchymal cells support undifferentiated growth of embryonic stem cells. Exp Ther Med 2017; 13:1779-1788. [PMID: 28565767 PMCID: PMC5443186 DOI: 10.3892/etm.2017.4195] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 10/14/2016] [Accepted: 01/13/2017] [Indexed: 02/05/2023] Open
Abstract
The aim of the present study was to investigate whether feeder layers composed of human hair follicle-derived mesenchymal stem cells (hHFDCs) are able to support human embryonic stem cells (hESCs). hHFDCs and mouse embryonic fibroblasts (MEFs) were isolated and cultured in Dulbecco's modified Eagle's medium (DMEM)/F-12 and low-glucose DMEM, respectively. hHFDCs were passaged three times and subsequently characterized. hHFDCs and MEFs were mitotically inactivated with mitomycin C for 3 h prior to co-culture with H9-hESCs. hESCs were initially established on a mouse feeder layer, subsequently transferred onto a human feeder layer and split every 5 days. Cell morphology, expression of specific 'undifferentiation' markers and growth factors, and the differentiation capacity of hESCs grown on the hHFDC feeder layer were analyzed. hHFDCs are adherent to plastic, possess the classic mesenchymal stem cell phenotype [they express cluster of differentiation (CD)90, CD73 and CD105] and are able to differentiate into adipocytes, chondroblasts and osteocytes, indicating that these cells are multipotent. Population-doubling time analysis revealed that hHFDCs rapidly proliferate over 34.5 h. As a feeder layer, hHFDC behaved similarly to MEF in maintaining the morphology of hESCs. The results of alkaline phosphatase activity, reverse transcription-quantitative polymerase chain reaction analysis of the expression of pluripotency transcription factors [octamer-binding transcription factor 4 (Oct4), Nanog and sex determining region Y-box 2], and immunofluorescence assays of markers (stage-specific embryonic antigen-4 and Oct4) in hESCs co-cultured over hHFDC, indicated that the undifferentiated state of hESCs was preserved. No change in the level of growth factor transcripts (bone morphogenetic protein 4, fibroblast growth factor-2, vascular endothelial growth factor, Pigment epithelium-derived factor and transforming growth factor-β1) was detected for either feeder layer prior to or following inactivation. Similar phenotypes of embryoid body formation, size and morphology were observed in the hHFDC and MEF feeders. In conclusion, hHFDC maintained hESCs in an undifferentiated state comparable to MEF in standard conditions, which may be an important finding regarding the establishment of stem cell-based translational applications.
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Affiliation(s)
| | - Danúbia Silva dos Santos
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil
| | - Leandro Vairo
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil
| | - Tais Hanae Kasai Brunswick
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil
| | | | - Adriana Bastos Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil
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Kasai-Brunswick TH, Costa ARD, Barbosa RAQ, Farjun B, Mesquita FCP, Silva dos Santos D, Ramos IP, Suhett G, Brasil GV, Cunha STD, Brito JOR, Passipieri JDA, Carvalho AB, Campos de Carvalho AC. Cardiosphere-derived cells do not improve cardiac function in rats with cardiac failure. Stem Cell Res Ther 2017; 8:36. [PMID: 28202059 PMCID: PMC5312520 DOI: 10.1186/s13287-017-0481-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 01/10/2017] [Accepted: 01/13/2017] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Heart failure represents an important public health issue due to its high costs and growing incidence worldwide. Evidence showing the regenerative potential of postmitotic heart tissue has suggested the existence of endogenous cardiac stem cells in adult hearts. Cardiosphere-derived cells (CDC) constitute a candidate pool of such cardiac stem cells. Previous studies using acute myocardial infarction (MI) models in rodents demonstrated an improvement in cardiac function after cell therapy with CDC. We evaluated the therapeutic potential of CDC 60 days after MI in a rat model. METHODS CDC were obtained from human discarded myocardial tissue and rat hearts by enzymatic digestion with collagenase II. At 10-15 days after isolation, small, round, phase-bright cells (PBCs) appeared on top of the adherent fibroblast-like cells. The PBCs were collected and placed on a nonadherent plate for 2 days, where they formed cardiospheres which were then transferred to adherent plates, giving rise to CDC. These CDC were characterized by flow cytometry. Wistar rats were submitted to MI through permanent occlusion of the anterior descending coronary artery. After 60 days, they were immunosuppressed with cyclosporine A during 10 days. On the third day, infarcted animals were treated with 5 × 105 human CDC (hCDC) or placebo through intramyocardial injection guided by echocardiogram. Another group of animals was treated with rat CDC (rCDC) without immunosuppression. hCDC and rCDC were stably transduced with a viral construct expressing luciferase under control of a constitutive promoter. CDC were then used in a bioluminescence assay. Functional parameters were evaluated by echocardiogram 90 and 120 days after MI and by Langendorff at 120 days. RESULTS CDC had a predominantly mesenchymal phenotype. Cell tracking by bioluminescence demonstrated over 85% decrease in signal at 5-7 days after cell therapy. Cardiac function evaluation by echocardiography showed no differences in ejection fraction, end-diastolic volume, or end-systolic volume between groups receiving human cells, rat cells, or placebo. Hemodynamic analyses and infarct area quantification confirmed that there was no improvement in cardiac remodeling after cell therapy with CDC. CONCLUSION Our study challenges the effectiveness of CDC in post-ischemic heart failure.
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Affiliation(s)
- Taís Hanae Kasai-Brunswick
- 0000 0001 2294 473Xgrid.8536.8Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, n°373, room G2-053, CEP:21941-902 Rio de Janeiro, RJ Brazil
- 0000 0004 0481 7106grid.414444.5National Institute of Cardiology, Rua das Laranjeiras, n°374—Laranjeiras, CEP:22240-006 Rio de Janeiro, RJ Brazil
- 0000 0001 2294 473Xgrid.8536.8National Center for Structural Biology and Bioimaging—CENABIO, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, n°373, buiding M, CEP:21941-902 Rio de Janeiro, RJ Brazil
| | - Andréa Rodrigues da Costa
- 0000 0004 0481 7106grid.414444.5National Institute of Cardiology, Rua das Laranjeiras, n°374—Laranjeiras, CEP:22240-006 Rio de Janeiro, RJ Brazil
| | - Raiana Andrade Quintanilha Barbosa
- 0000 0001 2294 473Xgrid.8536.8Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, n°373, room G2-053, CEP:21941-902 Rio de Janeiro, RJ Brazil
- 0000 0004 0481 7106grid.414444.5National Institute of Cardiology, Rua das Laranjeiras, n°374—Laranjeiras, CEP:22240-006 Rio de Janeiro, RJ Brazil
| | - Bruna Farjun
- 0000 0001 2294 473Xgrid.8536.8Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, n°373, room G2-053, CEP:21941-902 Rio de Janeiro, RJ Brazil
| | - Fernanda Cristina Paccola Mesquita
- 0000 0001 2294 473Xgrid.8536.8Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, n°373, room G2-053, CEP:21941-902 Rio de Janeiro, RJ Brazil
| | - Danúbia Silva dos Santos
- 0000 0001 2294 473Xgrid.8536.8Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, n°373, room G2-053, CEP:21941-902 Rio de Janeiro, RJ Brazil
| | - Isalira Peroba Ramos
- 0000 0001 2294 473Xgrid.8536.8Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, n°373, room G2-053, CEP:21941-902 Rio de Janeiro, RJ Brazil
- 0000 0001 2294 473Xgrid.8536.8National Center for Structural Biology and Bioimaging—CENABIO, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, n°373, buiding M, CEP:21941-902 Rio de Janeiro, RJ Brazil
| | - Grazielle Suhett
- 0000 0001 2294 473Xgrid.8536.8Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, n°373, room G2-053, CEP:21941-902 Rio de Janeiro, RJ Brazil
| | - Guilherme Visconde Brasil
- 0000 0001 2294 473Xgrid.8536.8Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, n°373, room G2-053, CEP:21941-902 Rio de Janeiro, RJ Brazil
| | - Sandro Torrentes da Cunha
- 0000 0001 2294 473Xgrid.8536.8Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, n°373, room G2-053, CEP:21941-902 Rio de Janeiro, RJ Brazil
| | - José Oscar R. Brito
- 0000 0004 0481 7106grid.414444.5National Institute of Cardiology, Rua das Laranjeiras, n°374—Laranjeiras, CEP:22240-006 Rio de Janeiro, RJ Brazil
| | - Juliana do Amaral Passipieri
- 0000 0001 2294 473Xgrid.8536.8Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, n°373, room G2-053, CEP:21941-902 Rio de Janeiro, RJ Brazil
- 0000 0004 0481 7106grid.414444.5National Institute of Cardiology, Rua das Laranjeiras, n°374—Laranjeiras, CEP:22240-006 Rio de Janeiro, RJ Brazil
| | - Adriana Bastos Carvalho
- 0000 0001 2294 473Xgrid.8536.8Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, n°373, room G2-053, CEP:21941-902 Rio de Janeiro, RJ Brazil
- National Institute of Science and Technology for Regenerative Medicine, Av. Carlos Chagas Filho, n°373, CEP:21941-902 Rio de Janeiro, RJ Brazil
| | - Antonio Carlos Campos de Carvalho
- 0000 0001 2294 473Xgrid.8536.8Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, n°373, room G2-053, CEP:21941-902 Rio de Janeiro, RJ Brazil
- 0000 0004 0481 7106grid.414444.5National Institute of Cardiology, Rua das Laranjeiras, n°374—Laranjeiras, CEP:22240-006 Rio de Janeiro, RJ Brazil
- 0000 0001 2294 473Xgrid.8536.8National Center for Structural Biology and Bioimaging—CENABIO, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, n°373, buiding M, CEP:21941-902 Rio de Janeiro, RJ Brazil
- National Institute of Science and Technology for Regenerative Medicine, Av. Carlos Chagas Filho, n°373, CEP:21941-902 Rio de Janeiro, RJ Brazil
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Alves MC, Galeano DC, Santos WS, Lee C, Bolch WE, Hunt JG, da Silva AX, Carvalho AB. Comparison of the effective dose rate to aircrew members using hybrid computational phantoms in standing and sitting postures. J Radiol Prot 2016; 36:885-901. [PMID: 27798410 DOI: 10.1088/0952-4746/36/4/885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Aircraft crew members are occupationally exposed to considerable levels of cosmic radiation at flight altitudes. Since aircrew (pilots and passengers) are in the sitting posture for most of the time during flight, and up to now there has been no data on the effective dose rate calculated for aircrew dosimetry in flight altitude using a sitting phantom, we therefore calculated the effective dose rate using a phantom in the sitting and standing postures in order to compare the influence of the posture on the radiation protection of aircrew members. We found that although the better description of the posture in which the aircrews are exposed, the results of the effective dose rate calculated with the phantom in the sitting posture were very similar to the results of the phantom in the standing posture. In fact we observed only a 1% difference. These findings indicate the adequacy of the use of dose conversion coefficients for the phantom in the standing posture in aircrew dosimetry. We also validated our results comparing the effective dose rate obtained using the standing phantom with values reported in the literature. It was observed that the results presented in this study are in good agreement with other authors (the differences are below 30%) who have measured and calculated effective dose rates using different phantoms.
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Affiliation(s)
- M C Alves
- Departamento de Física, Universidade Federal de Sergipe; Campus Prof. José Aloísio de Campos, 49.100-000, São Cristóvão, SE, Brazil
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Monnerat G, Alarcón ML, Vasconcellos LR, Hochman-Mendez C, Brasil G, Bassani RA, Casis O, Malan D, Travassos LH, Sepúlveda M, Burgos JI, Vila-Petroff M, Dutra FF, Bozza MT, Paiva CN, Carvalho AB, Bonomo A, Fleischmann BK, de Carvalho ACC, Medei E. Macrophage-dependent IL-1β production induces cardiac arrhythmias in diabetic mice. Nat Commun 2016; 7:13344. [PMID: 27882934 PMCID: PMC5123037 DOI: 10.1038/ncomms13344] [Citation(s) in RCA: 165] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 09/24/2016] [Indexed: 02/08/2023] Open
Abstract
Diabetes mellitus (DM) encompasses a multitude of secondary disorders, including heart disease. One of the most frequent and potentially life threatening disorders of DM-induced heart disease is ventricular tachycardia (VT). Here we show that toll-like receptor 2 (TLR2) and NLRP3 inflammasome activation in cardiac macrophages mediate the production of IL-1β in DM mice. IL-1β causes prolongation of the action potential duration, induces a decrease in potassium current and an increase in calcium sparks in cardiomyocytes, which are changes that underlie arrhythmia propensity. IL-1β-induced spontaneous contractile events are associated with CaMKII oxidation and phosphorylation. We further show that DM-induced arrhythmias can be successfully treated by inhibiting the IL-1β axis with either IL-1 receptor antagonist or by inhibiting the NLRP3 inflammasome. Our results establish IL-1β as an inflammatory connection between metabolic dysfunction and arrhythmias in DM.
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MESH Headings
- Action Potentials
- Animals
- Antirheumatic Agents/pharmacology
- Arrhythmias, Cardiac/etiology
- Arrhythmias, Cardiac/immunology
- Arrhythmias, Cardiac/metabolism
- Calcium/metabolism
- Calcium-Calmodulin-Dependent Protein Kinase Type 2/metabolism
- Caspase 1/metabolism
- Diabetes Mellitus, Experimental/complications
- Diabetes Mellitus, Experimental/immunology
- Diabetes Mellitus, Experimental/metabolism
- Inflammasomes/antagonists & inhibitors
- Interleukin 1 Receptor Antagonist Protein/pharmacology
- Interleukin-1beta/genetics
- Interleukin-1beta/immunology
- Interleukin-1beta/metabolism
- Macrophages/immunology
- Mice
- Mice, Transgenic
- Myocardial Contraction
- Myocytes, Cardiac/immunology
- Myocytes, Cardiac/metabolism
- NLR Family, Pyrin Domain-Containing 3 Protein/antagonists & inhibitors
- NLR Family, Pyrin Domain-Containing 3 Protein/genetics
- NLR Family, Pyrin Domain-Containing 3 Protein/immunology
- Potassium/metabolism
- Receptors, Interleukin-1/antagonists & inhibitors
- Receptors, Interleukin-1/genetics
- Receptors, Interleukin-1/immunology
- Tachycardia, Ventricular/etiology
- Tachycardia, Ventricular/immunology
- Tachycardia, Ventricular/metabolism
- Toll-Like Receptor 2/genetics
- Toll-Like Receptor 2/immunology
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Affiliation(s)
- Gustavo Monnerat
- Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Micaela L. Alarcón
- Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Luiz R. Vasconcellos
- LIRS-Laboratory of Immunoreceptors and Signaling, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Camila Hochman-Mendez
- Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Guilherme Brasil
- Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Rosana A. Bassani
- Center for Biomedical Engineering, University of Campinas, Campinas 13.083-970, Brazil
| | - Oscar Casis
- Departamento de Fisiología, Facultad de Farmacia, Universidad del País Vasco UPV/EHU, 01006 Vitoria, Spain
| | - Daniela Malan
- Institute of Physiology I, Life and Brain Center, University of Bonn, Bonn D-53127, Germany
| | - Leonardo H. Travassos
- LIRS-Laboratory of Immunoreceptors and Signaling, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Marisa Sepúlveda
- Centro de Investigaciones Cardiovasculares, Conicet La Plata, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata 1900, Argentina
| | - Juan Ignacio Burgos
- Centro de Investigaciones Cardiovasculares, Conicet La Plata, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata 1900, Argentina
| | - Martin Vila-Petroff
- Centro de Investigaciones Cardiovasculares, Conicet La Plata, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata 1900, Argentina
| | - Fabiano F. Dutra
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Marcelo T. Bozza
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Claudia N. Paiva
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Adriana Bastos Carvalho
- Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Adriana Bonomo
- Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
- FIOCANCER/ VPPLR/FIOCRUZ, FIOCRUZ-Manguinhos, Rio de Janeiro 21040-360, Brazil
| | - Bernd K. Fleischmann
- Institute of Physiology I, Life and Brain Center, University of Bonn, Bonn D-53127, Germany
| | - Antonio Carlos Campos de Carvalho
- Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
- National Center for Structural Biology and Bioimaging—CENABIO/UFRJ, Rio de Janeiro 21941-902, Brazil
| | - Emiliano Medei
- Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
- National Center for Structural Biology and Bioimaging—CENABIO/UFRJ, Rio de Janeiro 21941-902, Brazil
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Mesquita FCP, Kasai-Brunswick TH, Gubert FDMESV, Borgonovo T, Silva-dos-Santos D, de Araújo DS, Campos-de-Carvalho AC, Carvalho AB. Generation of human iPS cell line ihFib3.2 from dermal fibroblasts. Stem Cell Res 2015; 15:445-8. [PMID: 26413783 DOI: 10.1016/j.scr.2015.09.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 09/04/2015] [Accepted: 09/08/2015] [Indexed: 02/05/2023] Open
Abstract
The human ihFib3.2 iPS cell line was generated from dermal fibroblasts obtained from a healthy donor. Lentiviral particles were produced with the polycistronic hSTEMCCA vector with Oct4, Sox2, cMyc and Klf4 as reprogramming factors.
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Affiliation(s)
- Fernanda Cristina Paccola Mesquita
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Instituto Nacional de Cardiologia, Rio de Janeiro, RJ, Brazil
| | - Tais Hanae Kasai-Brunswick
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Instituto Nacional de Cardiologia, Rio de Janeiro, RJ, Brazil
| | | | | | - Danúbia Silva-dos-Santos
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Dayanada Silva de Araújo
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Antonio Carlos Campos-de-Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Instituto Nacional de Cardiologia, Rio de Janeiro, RJ, Brazil
| | - Adriana Bastos Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Suhett GD, de Souza SAL, Carvalho AB, de Pinho Rachid R, da Cunha-E-Silva NL, de Carvalho ACC, da Fonseca LMB, dos Santos Goldenberg RC, Gutfilen B. 99m-Technetium binding site in bone marrow mononuclear cells. Stem Cell Res Ther 2015; 6:115. [PMID: 26041023 PMCID: PMC4473842 DOI: 10.1186/s13287-015-0107-0] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Accepted: 05/28/2015] [Indexed: 02/08/2023] Open
Abstract
INTRODUCTION The increasing interest in 99m-technetium ((99m)Tc)-labeled stem cells encouraged us to study the (99m)Tc binding sites in stem cell compartments. METHODS Bone marrow mononuclear cells were collected from femurs and tibia of rats. Cells were labeled with (99m)Tc by a direct method, in which reduced molecules react with (99m)Tc with the use of chelating agents, and lysed carefully in an ultrasonic apparatus. The organelles were separated by means of differential centrifugation. At the end of this procedure, supernatants and pellets were counted, and the percentages of radioactivity (in megabecquerels) bound to the different cellular fractions were determined. Percentages were calculated by dividing the radioactivity in each fraction by total radioactivity in the sample. The pellets were separated and characterized by their morphology on electron microscopy. RESULTS The labeling procedure did not affect viability of bone marrow mononuclear cells. Radioactivity distributions in bone marrow mononuclear cell organelles, obtained in five independent experiments, were approximately 38.5 % in the nuclei-rich fraction, 5.3 % in the mitochondria-rich fraction, 2.2 % in microsomes, and 54 % in the cytosol. Our results showed that most of the radioactivity remained in the cytosol; therefore, this is an intracellular labeling procedure that has ribosomes unbound to membrane and soluble molecules as targets. However, approximately 39 % of the radioactivity remained bound to the nuclei-rich fraction. To confirm that cell disruption and organelle separation were efficient, transmission electron microscopy assays of all pellets were performed. CONCLUSIONS Our results showed that most of the radioactivity was present in the cytosol fraction. More studies to elucidate the mechanisms involved in the cellular uptake of (99m)Tc in bone marrow cells are ongoing.
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Affiliation(s)
- Grazielle Dias Suhett
- Laboratório de Cardiologia Celular e Molecular, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ), Av. Carlos Chagas Filho, 373, Bloco G. Ilha do Fundão, Cidade Universitária, Rio de Janeiro, 21941-902, Brasil.
| | - Sergio Augusto Lopes de Souza
- Departamento de Radiologia, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rua Prof. Rodolpho Paulo Rocco, 255. Ilha do Fundão, Cidade Universitária, Rio de Janeiro, 21941-913, Brasil.
| | - Adriana Bastos Carvalho
- Laboratório de Cardiologia Celular e Molecular, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ), Av. Carlos Chagas Filho, 373, Bloco G. Ilha do Fundão, Cidade Universitária, Rio de Janeiro, 21941-902, Brasil.
| | - Rachel de Pinho Rachid
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ), Av. Carlos Chagas Filho, 373, Bloco G. Ilha do Fundão, Cidade Universitária, Rio de Janeiro, 21941-902, Brasil.
| | - Narcisa Leal da Cunha-E-Silva
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ), Av. Carlos Chagas Filho, 373, Bloco G. Ilha do Fundão, Cidade Universitária, Rio de Janeiro, 21941-902, Brasil.
| | - Antonio Carlos Campos de Carvalho
- Laboratório de Cardiologia Celular e Molecular, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ), Av. Carlos Chagas Filho, 373, Bloco G. Ilha do Fundão, Cidade Universitária, Rio de Janeiro, 21941-902, Brasil.
| | - Lea Mirian Barbosa da Fonseca
- Departamento de Radiologia, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rua Prof. Rodolpho Paulo Rocco, 255. Ilha do Fundão, Cidade Universitária, Rio de Janeiro, 21941-913, Brasil.
| | - Regina Coeli dos Santos Goldenberg
- Laboratório de Cardiologia Celular e Molecular, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ), Av. Carlos Chagas Filho, 373, Bloco G. Ilha do Fundão, Cidade Universitária, Rio de Janeiro, 21941-902, Brasil.
| | - Bianca Gutfilen
- Departamento de Radiologia, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rua Prof. Rodolpho Paulo Rocco, 255. Ilha do Fundão, Cidade Universitária, Rio de Janeiro, 21941-913, Brasil.
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Campos de Carvalho AC, Bastos Carvalho A. Stem Cell-Based Therapies in Chagasic Cardiomyopathy. Biomed Res Int 2015; 2015:436314. [PMID: 26161401 PMCID: PMC4486210 DOI: 10.1155/2015/436314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 05/27/2015] [Indexed: 02/08/2023]
Abstract
Chagas disease is caused by Trypanosoma cruzi and can lead to a dilated cardiomyopathy decades after the prime infection by the parasite. As with other dilated cardiomyopathies, conventional pharmacologic therapies are not always effective and as heart failure progresses patients need heart transplantation. Therefore alternative therapies are highly desirable and cell-based therapies have been investigated in preclinical and clinical studies. In this paper we review the main findings of such studies and discuss future directions for stem cell-based therapies in chronic chagasic cardiomyopathy.
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Affiliation(s)
- Antonio Carlos Campos de Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rua Carlos Chagas Filho 373, 21949-900 Rio de Janeiro, RJ, Brazil
- *Antonio Carlos Campos de Carvalho:
| | - Adriana Bastos Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rua Carlos Chagas Filho 373, 21949-900 Rio de Janeiro, RJ, Brazil
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Silva Dos Santos D, Coelho de Oliveira VC, Asensi KD, Vairo L, Carvalho AB, Campos de Carvalho AC, Goldenberg RCDS. Human Menstrual Blood-Derived Mesenchymal Cells as New Human Feeder Layer System for Human Embryonic Stem Cells. Cell Med 2014; 7:25-35. [PMID: 26858890 DOI: 10.3727/215517914x679265] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Human embryonic stem cells (hESCs) in general require coculture with feeder layers in order to remain undifferentiated. However, the use of animal-derived feeder layers is incompatible with the clinical setting. The objective of this work was to investigate whether human menstrual blood-derived mesenchymal cells (MBMCs) can substitute mouse embryonic fibroblasts (MEFs) as a feeder layer for H9-hESCs. Both feeder cell types were isolated and cultured in DMEM F-12 and high glucose DMEM, respectively. After three passages, they were inactivated with mitomycin C. To test MBMC feeder layer capacity, hESCs were grown over MBMCs and MEFs under standard conditions. hESC growth, proliferation, survival, and maintenance of the undifferentiated state were evaluated. hESCs grown over MBMCs preserved their undifferentiated state presenting standard morphology, expressing alkaline phosphatase, transcription factors OCT3/4, SOX2, and NANOG by RT-PCR and SSEA-4 and OCT3/4 by immunofluorescence assays. It is noteworthy that none of the feeder cells expressed these proteins. The average colony size of the hESCs on MBMCs was higher when compared to MEFs (p < 0.05; mean ± SD, n = 3). Growth factor analysis revealed amplification of the transcripts for FGF-2, BMP4, TGF-β, VEGF, and PEDF by RT-PCR in MBMCs and MEFs before and after inactivation. Furthermore, similar embryoid body formation, size, and morphology were observed in both feeder layers. In addition, EBs expressed marker genes for the three germ layers cultured on both feeder cells. In conclusion, MBMCs are able to maintain hESCs in an undifferentiated state with comparable efficiency to MEFs. Therefore, MBMCs are a suitable alternative to animal-derived feeder layers for growing hESCs.
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Affiliation(s)
- Danúbia Silva Dos Santos
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro , Rio de Janeiro , Brazil
| | | | - Karina Dutra Asensi
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro , Rio de Janeiro , Brazil
| | - Leandro Vairo
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro , Rio de Janeiro , Brazil
| | - Adriana Bastos Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro , Rio de Janeiro , Brazil
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Sardar M, Souza DN, Tufail M, Caldas LVE, Antonio PL, Carvalho AB. TL behavior of topaz-glass composite in various irradiation fields. Health Phys 2013; 105:150-155. [PMID: 23799499 DOI: 10.1097/hp.0b013e31828cf924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Topaz is a natural hard silicate mineral that has the potential to be used as a thermoluminescent dosimeter (TLD). It is difficult to manufacture chips of topaz and problematic to use its powder as TLDs. Topaz-glass composite (in the form of pellets) can be made easily and applied for radiation dosimetry. To produce pellets of topaz-glass composite in 2:1 wt (%), topaz powder was combined with commercial glass. The pellets with 6 mm diameter and 1 mm thickness were sintered in a furnace at 900°C for 1 h. The composite pellets were irradiated with x-ray and gamma photons and alpha and beta particles. The pellets yielded two peaks in the glow curve; Peak 1 at temperature range 150-160°C and Peak 2 at 250-260°C. The intensity of Peak 2 rose linearly with the increase in absorbed dose. The intensity of Peak 2 was comparable with peaks for photons and beta irradiation but relatively low for alpha exposure. The reproducibility of the intensity of Peak 2 was within 5-8%. Two months after irradiation of the pellets, the fading of the intensity of Peak 2 was found to be about 7%. The topaz-glass composite can be used effectively and efficiently for dosimetry of alpha, beta, and gamma radiation.
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Affiliation(s)
- M Sardar
- Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad 45650, Pakistan.
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Abstract
After the demonstration that somatic cells could be reprogrammed to a pluripotent state, exciting new prospects were opened for the cardiac regeneration field. It did not take long for the development of strategies to convert somatic cells directly into cardiomyocytes. Despite the intrinsic difficulties of cell reprogramming, such as low efficiency, the therapeutic possibilities created by the ability to turn scar into muscle are enormous. Here, we discuss some of the major advances and strategies used in direct cardiac reprogramming and examine discrepancies and concerns that still need to be resolved in the field.
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de Carvalho ACC, Carvalho AB, Mello DB, Goldenberg RCDS. Bone marrow-derived cell therapy in chagasic cardiac disease: a review of pre-clinical and clinical results. Cardiovasc Diagn Ther 2012; 2:213-9. [PMID: 24282718 DOI: 10.3978/j.issn.2223-3652.2012.08.03] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Accepted: 08/22/2012] [Indexed: 11/14/2022]
Abstract
Chagas disease is caused by a protozoan parasite Trypanosoma cruzi, which infects people through blood sucking insects. It is endemic in Latin America and the disease is being spread to developed countries as a result of the migration of infected individuals. In its chronic stage, Chagas disease can lead to a severe cardiomyopathy for which there is currently no cure. End-stage patients require heart transplantation, thus demanding new therapeutic modalities. Cell-based therapy has been proposed as an alternative for various forms of heart disease. Here we review the experimental evidence that led to the use of bone marrow-derived cells in putative therapy for chronic chagasic cardiomyopathy in animal models and in clinical trials, discussing the reasons for failure of the translation of results from mice to men.
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Affiliation(s)
- Antonio Carlos Campos de Carvalho
- Instituto Nacional de Cardiologia, Rua das Laranjeiras 374, Rio de Janeiro, RJ-22240-006, Brazil; ; Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Avenida Carlos Chagas Filho 373, Rio de Janeiro, RJ-21941-902, Brazil
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Barros BA, Moraes SG, Coeli FB, Assumpção JG, De Mello MP, Maciel-Guerra AT, Carvalho AB, Viguetti-Campos N, Vieira TAP, Amstalden EMI, Andrade JGR, Esquiaveto-Aun AM, Marques-de-Faria AP, D'Souza-Li LFR, Lemos-Marini SHV, Guerra G. OCT4 immunohistochemistry may be necessary to identify the real risk of gonadal tumors in patients with Turner syndrome and Y chromosome sequences. Hum Reprod 2011; 26:3450-5. [PMID: 21930534 DOI: 10.1093/humrep/der310] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND The aim of this study was to investigate the frequency of gonadal tumors among patients with Turner syndrome (TS) carrying Y-derivative sequences in their chromosomal constitution. METHODS Six out of 260 patients with TS were selected based on mosaicism of the entire Y chromosome; 10 were included because Y-derivative sequences have been detected by PCR with specific oligonucleotides (sex-determining region on the Y, testis specific-protein, Y and DYZ3) and further confirmed by FISH. The 16 patients were subjected to bilateral gonadectomy at ages varying from 8.7 to 18.2 years. Both histopathological investigation with hematoxylin and eosin (H&E) and immunohistochemical analysis with anti-octamer-binding transcription factor 4 (OCT4) antibody were performed. RESULTS Gonadal neoplasia was not detected in any of the 32 gonads evaluated by H&E; however, four gonads (12%) from three patients (19%) had positive OCT4 staining in 50-80% of nuclei, suggesting the existence of germ cell tumors (gonadoblastoma or in situ carcinoma). CONCLUSIONS Evaluation of the real risk of development of gonadal tumors in TS patients with Y-derivative sequences in their chromosomal constitution may require a specific histopathological study, such as immunohistochemistry with OCT4.
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Affiliation(s)
- B A Barros
- Department of Pediatrics, Faculty of Medical Sciences (FCM), University of Campinas (UNICAMP), Campinas, SP 13083-100, Brazil
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Mannheimer EG, Quintanilha LF, Carvalho AB, Paredes BD, Gonçalves de Carvalho F, Takyia CM, Resende CMC, Ferreira da Motta Rezende G, Campos de Carvalho AC, Schanaider A, dos Santos Goldenberg RC. Bone marrow cells obtained from cirrhotic rats do not improve function or reduce fibrosis in a chronic liver disease model. Clin Transplant 2011; 25:54-60. [PMID: 20047614 DOI: 10.1111/j.1399-0012.2009.01191.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [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: 02/05/2023]
Abstract
BACKGROUND The objective of this study was to evaluate the therapeutic potential of bone marrow cells (BMCs) obtained from cirrhotic donors in a model of chronic liver disease. METHODS Chronic liver injury was induced in female Wistar rats by the association of an alcoholic diet with intraperitoneal injections of carbon tetrachloride. BMCs obtained from cirrhotic donors or placebo were injected through the portal vein. Blood analysis of alanine aminotransferase (ALT) and albumin levels, ultrasound assessment including the measurement of the portal vein diameter (PVD) and liver echogenicity, histologic evaluation with hematoxylin and eosin and Sirius red staining, and quantification of collagen deposition were performed. RESULTS ALT and albumin blood levels showed no significant differences between the experimental groups two months after injection. Additionally, no significant variation in PVD and liver echogenicity was found. Histological analysis also showed no significant variation in collagen deposition two months after placebo or BMC injection. CONCLUSION This study suggests that, even though BMC therapy using cells from healthy donors has previously shown to be effective, this is not the case when BMCs are obtained from cirrhotic animals. This result has major clinical implications when considering the use of autologous BMCs from patients with chronic liver diseases.
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Affiliation(s)
- Elida Gripp Mannheimer
- Centro de Cirurgia Experimental e Programa de Pós-Graduação, Departamento de Cirurgia, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Brazil
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Canziani MEF, Tomiyama C, Higa A, Draibe SA, Carvalho AB. Fibroblast growth factor 23 in chronic kidney disease: bridging the gap between bone mineral metabolism and left ventricular hypertrophy. Blood Purif 2010; 31:26-32. [PMID: 21135546 DOI: 10.1159/000321368] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2010] [Accepted: 09/15/2010] [Indexed: 11/19/2022]
Abstract
BACKGROUND Left ventricular hypertrophy (LVH) is a major cardiovascular complication in chronic kidney disease (CKD) patients. For a successful management of LVH, the comprehensive understanding of the classical and the new emerging factors associated with LVH is of paramount importance. The aim of the present study was to evaluate the clinical correlates of bone mineral metabolism with the occurrence of LVH in nondialyzed CKD patients. METHODS This cross-sectional study included 96 patients with stages 2-4 CKD. Demographic characteristics, clinical profiles, laboratory tests and transthoracic echocardiogram were performed. RESULTS LVH was observed in 36% of the patients. Patients with LVH were older, had a higher prevalence of hypertension, and higher levels of intact parathormone, fibroblast growth factor 23 and C-reactive protein. Serum phosphorus, alkaline phosphatase and vitamin D were not associated with the presence of LVH. In the multiple logistic regression analyses only FGF23 remained as a variable independently associated with LVH. CONCLUSION We confirmed the high prevalence of LVH in nondialyzed CKD patients and showed that FGF23, an early marker of phosphorus load, was an important factor associated with LVH in these patients. Monitoring of FGF23 could be important for the management of LVH in this population.
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Affiliation(s)
- M E F Canziani
- Nephrology Division, Department of Medicine, Federal University of São Paulo, São Paulo, Brazil.
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Lirani-Galvão APR, Lazaretti-Castro M, Portero-Muzy N, Bergamaschi CT, Silva OL, Carvalho AB, Delmas PD, Chavassieux P. Is nitric oxide a mediator of the effects of low-intensity electrical stimulation on bone in ovariectomized rats? Calcif Tissue Int 2010; 87:52-9. [PMID: 20383765 DOI: 10.1007/s00223-010-9357-0] [Citation(s) in RCA: 5] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2009] [Accepted: 03/21/2010] [Indexed: 11/25/2022]
Abstract
Low-intensity electrical stimulation (LIES) may counteract the effects of ovariectomy (OVX) on nitric oxide synthase (NOS) expression, osteocyte viability, bone structure, and microarchitecture in rats (Lirani-Galvão et al., Calcif Tissue Int 84:502-509, 2009). The aim of the present study was to investigate if these effects of LIES could be mediated by NO. We analyzed the effects of NO blockage (by L-NAME) in the response to LIES on osteocyte viability, bone structure, and microarchitecture in OVX rats. Sixty rats (200-220 g) were divided into six groups: sham, sham-L-NAME (6 mg/kg/day), OVX, OVX-L-NAME, OVX-LIES, and OVX-LIES-L-NAME. After 12 weeks, rats were killed and tibiae collected for histomorphometric analysis and immunohistochemical detection of endothelial NOS (eNOS), inducible NOS (iNOS), and osteocyte apoptosis (caspase-3 and TUNEL). In the presence of L-NAME, LIES did not counteract the OVX-induced effects on bone volume and trabecular number (as on OVX-LIES). L-NAME blocked the stimulatory effects of LIES on iNOS and eNOS expression of OVX rats. Both L-NAME and LIES decreased osteocyte apoptosis. Our results showed that in OVX rats L-NAME partially blocks the effects of LIES on bone structure, turnover, and expression of iNOS and eNOS, suggesting that NO may be a mediator of some positive effects of LIES on bone.
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Affiliation(s)
- A P R Lirani-Galvão
- INSERM Unité 831, Faculté de Médecine R. T. H. Laënnec, rue G. Paradin, 69372, Lyon Cedex 08, France.
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Abstract
The heart has been considered a post-mitotic organ without regenerative capacity for most of the last century. We review the evidence that led to this hypothesis in the early 1900s and how it was progressively modified, culminating with the report that we renew 50% of our cardiomyocytes during our lifetime. The future of cardiac regenerative therapies is discussed, presenting the difficulties to overcome before repair of the diseased heart can come into clinical practice.
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Affiliation(s)
- Adriana Bastos Carvalho
- Adriana Bastos Carvalho, Antonio Carlos Campos de Carvalho, National Institute of Cardiology, Rio de Janeiro, RJ, CEP 22240-006, Brazil; Carlos Chagas Filho Institute of Biophysics and Institute for Science and Technology in Structural Biology and Bioimaging, Rio de Janeiro, RJ, CEP 21941-902, Brazil
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Oliveira BG, Araújo RCMU, Carvalho AB, Ramos MN. A theoretical study of dihydrogen bonds in small protonated rings: aziridine and azetidine cations. Spectrochim Acta A Mol Biomol Spectrosc 2010; 75:563-566. [PMID: 19959393 DOI: 10.1016/j.saa.2009.11.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2008] [Revised: 11/05/2009] [Accepted: 11/10/2009] [Indexed: 05/28/2023]
Abstract
B3LYP/6-311++G(d,p) calculations were used to predict some molecular properties of the C2H6N+...BeH2, C2H6N...MgH2, C3H8N...BeH2 and C3H8N+...MgH2 dihydrogen-bonded complexes. In these systems, it was demonstrated that the C2H6N+ and C3H8N+ protonated rings are potential candidates to bind with protonic hydrogens derived from alkaline earth metal compounds, BeH2 and MgH2. In terms of structural parameters and quantification of the dihydrogen bond energies, we should mention that the C2H6N+ three-membered ring provides the formation of stronger bound systems, which are 4.0 kJ mol-1 more stables than C3H8N+ four-membered ones. As complement, the analysis of the infrared spectrum indicated that red-shifts and blue-shifts are occurring in the N-H bonds of both C2H6N+ and C3H8N+ cationic rings. However, these two vibrational shifts were also verified on BeH2 and MgH2, what lead us to affirm that cationic compounds derived from small nitrogen rings and earth alkaline molecules are able to form unusual dihydrogen-bonded complexes by means of distinct spectroscopic phenomena, the red-shits and blue-shifts.
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Affiliation(s)
- B G Oliveira
- Departamento de Química, Universidade Federal da Paraíba 58036-300 João Pessoa, PB, Brazil
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D'Alessandro DA, Kajstura J, Hosoda T, Gatti A, Bello R, Mosna F, Bardelli S, Zheng H, D'Amario D, Padin-Iruegas ME, Carvalho AB, Rota M, Zembala MO, Stern D, Rimoldi O, Urbanek K, Michler RE, Leri A, Anversa P. Progenitor cells from the explanted heart generate immunocompatible myocardium within the transplanted donor heart. Circ Res 2009; 105:1128-40. [PMID: 19815820 DOI: 10.1161/circresaha.109.207266] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
RATIONALE Chronic rejection, accelerated coronary atherosclerosis, myocardial infarction, and ischemic heart failure determine the unfavorable evolution of the transplanted heart in humans. OBJECTIVE Here we tested whether the pathological manifestations of the transplanted heart can be corrected partly by a strategy that implements the use of cardiac progenitor cells from the recipient to repopulate the donor heart with immunocompatible cardiomyocytes and coronary vessels. METHODS AND RESULTS A large number of cardiomyocytes and coronary vessels were created in a rather short period of time from the delivery, engraftment, and differentiation of cardiac progenitor cells from the recipient. A proportion of newly formed cardiomyocytes acquired adult characteristics and was integrated structurally and functionally within the transplant. Similarly, the regenerated arteries, arterioles, and capillaries were operative and contributed to the oxygenation of the chimeric myocardium. Attenuation in the extent of acute damage by repopulating cardiomyocytes and vessels decreased significantly the magnitude of myocardial scarring preserving partly the integrity of the donor heart. CONCLUSIONS Our data suggest that tissue regeneration by differentiation of recipient cardiac progenitor cells restored a significant portion of the rejected donor myocardium. Ultimately, immunosuppressive therapy may be only partially required improving quality of life and lifespan of patients with cardiac transplantation.
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Affiliation(s)
- David A D'Alessandro
- Department of Cardiothoracic Surgery, Montefiore Medical Center, Albert Einstein College of Medicine, New York, USA
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Lirani-Galvão APR, Chavassieux P, Portero-Muzy N, Bergamaschi CT, Silva OL, Carvalho AB, Lazaretti-Castro M, Delmas PD. Low-intensity electrical stimulation counteracts the effects of ovariectomy on bone tissue of rats: effects on bone microarchitecture, viability of osteocytes, and nitric oxide expression. Calcif Tissue Int 2009; 84:502-9. [PMID: 19458889 DOI: 10.1007/s00223-009-9227-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [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: 08/06/2008] [Accepted: 02/04/2009] [Indexed: 12/31/2022]
Abstract
Low Intensity Electrical Stimulation (LIES) has been used for bone repair, but little is known about its effects on bone after menopause. Osteocytes probably play a role in mediating this physical stimulus and they could act as transducers through the release of biochemical signals, such as nitric oxide (NO). The aim of the present study was to investigate the effects of LIES on bone structure and remodeling, NOS expression and osteocyte viability in ovariectomized (OVX) rats. Thirty rats (200-220 g) were divided into 3 groups: SHAM, OVX, and OVX subjected to LIES (OVX + LIES) for 12 weeks. Following the protocol, rats were sacrificed and tibias were collected for histomorphometric analysis and immunohistochemical detection of endothelial NO synthase (eNOS), inducible NOS (iNOS), and osteocyte apoptosis (caspase-3 and TUNEL). OVX rats showed significant (p < 0.05 vs. SHAM) decreased bone volume (10% vs. 25%) and trabecular number (1.7 vs. 3.9), and increased eroded surfaces (4.7% vs. 3.2%) and mineralization surfaces (15.9% vs. 7.7%). In contrast, after LIES, all these parameters were significantly different from OVX but not different from SHAM. eNOS and iNOS were similarly expressed in subperiosteal regions of tibiae cortices of SHAM, not expressed in OVX, and similarly expressed in OVX + LIES when compared to SHAM. In OVX, the percentage of apoptotic osteocytes (24%) was significantly increased when compared to SHAM (11%) and OVX + LIES (8%). Our results suggest that LIES counteracts some effects of OVX on bone tissue preserving bone structure and microarchitecture, iNOS and eNOS expression, and osteocyte viability.
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Affiliation(s)
- A P R Lirani-Galvão
- INSERM Unité 831, Faculté de Médecine R. T. H. Laënnec, Université de Lyon, rue G. Paradin, Lyon Cedex 08, France.
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Dias JV, Paredes BD, Mesquita LFQ, Carvalho AB, Kozlowski EO, Lessa AS, Takiya CM, Resende CMC, Coelho HSM, Campos-de-Carvalho AC, Rezende GFM, Goldenberg RCS. An ultrasound and histomorphological analysis of experimental liver cirrhosis in rats. Braz J Med Biol Res 2008; 41:992-9. [PMID: 19099152 DOI: 10.1590/s0100-879x2008001100008] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Accepted: 11/03/2008] [Indexed: 02/08/2023] Open
Abstract
We investigated whether liver injury by dual exposure to ethanol and carbon tetrachloride (EtOH + CCl4) for 15 weeks would persist after hepatotoxic agents were removed (EtOH + CCl4/8wR). After 15 weeks of hepatic injury with ethanol (5.5%, m/v) and carbon tetrachloride (0.05, mL/kg, ip), 5 of 11 female Wistar rats were sacrificed. The other 6 rats were maintained for an additional 8 weeks without hepatotoxic agents. Ultrasonography showed increased liver echogenicity and dilation of portal vein caliber in both groups (EtOH + CCl4: 0.22 +/- 0.01 cm, P < 0.001; EtOH + CCl4/8wR: 0.21 +/- 0.02 cm, P < 0.01) vs control (0.16 +/- 0.02 cm). Histopathology showed regenerative nodules in both experimental groups. Histomorphometry revealed increased fibrosis content in both groups (EtOH + CCl4: 12.6 +/- 2.64%, P < 0.001; EtOH + CCl4/8wR: 10.4 +/- 1.36%, P < 0.05) vs control (2.2 +/- 1.21%). Collagen types I and III were increased in groups EtOH + CCl4 (collagen I: 2.5 +/- 1.3%, P < 0.01; collagen III: 1.3 +/- 0.2%, P < 0.05) and EtOH + CCl4/8wR (collagen I: 1.8 +/- 0.06%, P < 0.05; collagen III: 1.5 +/- 0.8%, P < 0.01) vs control (collagen I: 0.38 +/- 0.11%; collagen III: 0.25 +/- 0.06%). Tissue transglutaminase increased in both groups (EtOH + CCl4: 66.4 +/- 8%, P < 0.01; EtOH + CCl4/8wR: 58.8 +/- 21%, P < 0.01) vs control (7.9 +/- 0.8%). Cirrhosis caused by the association of CCl4-EtOH remained for at least 8 weeks after removal of these hepatotoxic agents. Ultrasound images can be a useful tool to evaluate advanced hepatic alterations.
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Affiliation(s)
- J V Dias
- Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
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Quintanilha LF, Mannheimer EG, Carvalho AB, Paredes BD, Dias JV, Almeida AS, Gutfilen B, Barbosa da Fonseca LM, Resende CMC, Rezende GFM, Campos de Carvalho AC, Goldenberg RCS. Bone marrow cell transplant does not prevent or reverse murine liver cirrhosis. Cell Transplant 2008; 17:943-53. [PMID: 19069636 DOI: 10.3727/096368908786576453] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [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: 02/05/2023] Open
Abstract
We tested the effect of bone marrow cell (BMC) transplantation in either preventing or reversing cirrhosis on an experimental model of chronic liver disease. Female Wistar rats were fed a liquid alcohol diet and received intraperitoneal injections of carbon tetrachloride (CCl4) over 15 weeks. Ten animals (cell-treated group) received five injections of BMCs during the cirrhosis induction protocol (on the 4th, 6th, 8th, 10th, and 12th weeks) and four animals received the cells after liver injury was established through tail vein. Nine animals (nontreated group) were submitted to the previously described protocols; however, they received vehicle injections. Analyses were performed to verify whether the infusion of cells was effective in preventing the development of cirrhosis in our model of induction, and if the cells could reverse cirrhosis once it was established. Hepatic architecture and fibrotic septa were analyzed in liver slices stained with hematoxilin & eosin and Sirius red, respectively. Fibrosis quantification was measured by Sirius red histomorphometry. Indirect immunofluorescence was performed to detect the amount of tissue transglutaminase 2. Blood analyses were performed to assess liver injury and function by the assessment of alanine aminotransferase and albumin. Ultrasound was performed to analyze the portal vein caliber and presence of ascitis. Cirrhosis features (regenerative nodules and fibrous septa) were observed in histopathology after 15 weeks of continuous hepatic injury in nontreated and cell-treated groups. Collagen content, immunofluorescence analysis, and biochemical and ultrasound parameters were similar in nontreated and cell-treated groups; however, both groups showed significant differences compared to a normal control group. Cell infusions with bone marrow-derived cells seem to be ineffective in improving morphofunctional parameters of the liver when applied to chronic cases either during or after establishment of the hepatic lesion.
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Affiliation(s)
- L F Quintanilha
- Instituto de Biofísica Carlos Chagas Filho, UFRJ, Rio de Janeiro, 21941-902, Brazil
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Oliveira BG, Araujo RCMU, Carvalho AB, Ramos MN. DFT calculations on the cyclic ethers hydrogen-bonded complexes: molecular parameters and the non-linearity of the hydrogen bond. Spectrochim Acta A Mol Biomol Spectrosc 2007; 68:626-31. [PMID: 17363321 DOI: 10.1016/j.saa.2006.12.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2006] [Revised: 12/15/2006] [Accepted: 12/19/2006] [Indexed: 05/14/2023]
Abstract
B3LYP/6-311+G(d,p) calculations were used to explore the geometry, intermolecular energy and the vibrational harmonic spectrum of heterocyclic complexes formed between 2,5-dihydrofuran and thiophene cyclic ethers and the HCl and HF acids. The simulated structures of these hydrogen complexes are discussed in terms of the linearity deviation of the n...HX hydrogen bond. Theoretical results are satisfactory as compared to the experimental equilibrium structure. The energies of the hydrogen bonds were determinate through the difference between the complex and its correspondent isolated monomers. Moreover, to obtain the correct energies of the hydrogen bonds, it was included the values of the zero point vibrational energy and the basis set superposition error. The infrared spectra reveal the direct relationship between the distance of the hydrogen bond and its stretching frequencies, as well as a good interpretation of the bathochromic effect of the HCl and HF stretching modes from intermolecular charge transfer.
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Affiliation(s)
- B G Oliveira
- Departamento de Química, Universidade Federal da Paraíba, 58036-300, João Pessoa, PB, Brazil.
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Hernandes FR, Barreto FC, Rocha LA, Draibe SA, Canziani MEF, Carvalho AB. Evaluation of the role of severe hyperparathyroidism on coronary artery calcification in dialysis patients. Clin Nephrol 2007; 67:89-95. [PMID: 17338428 DOI: 10.5414/cnp67089] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [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: 11/18/2022] Open
Abstract
BACKGROUND Chronic kidney disease (CKD) patients are at a high risk of dying from a cardiovascular event, mainly due to coronary calcification. Among the various uremic and dialysis-specific risk factors for coronary calcification are mineral metabolism disorders. The role that secondary hyperparathyroidism (SHPT) consequent to the altered calcium and phosphate metabolism plays in the pathogenesis of coronary calcification remains unclear. The aim of this study was to evaluate the prevalence of coronary artery calcification in dialysis patients with severe SHPT submitted to multislice coronary tomography (MSCT) and to identify risk factors for coronary calcification. METHODS This study involved 23 adult dialysis patients (age >18 years) with severe SHPT who were candidates for parathyroidectomy (PTX). All were submitted to MSCT and bone densitometry during the month preceding PTX. Fasting blood samples were collected immediately before surgery. Markers of mineral metabolism, including ionized calcium, phosphorus, alkaline phosphatase, intact-parathyroid hormone (iPTH), osteoprotegerin (OPG) and soluble receptor activator of nuclear factor-kappaB ligand, were analyzed. Dyslipidemia was assessed by determination of LDL, HDL and VLDL-cholesterol and triglyceride levels. Agatston units (AU) were used to calculate calcium scores. RESULTS No coronary calcification was found in 30% of the patients. Moderate (calcium score > 100 AU) and severe (calcium score >400 AU) calcification was observed in 12 and 36% of the patients, respectively. In the univariate analysis, calcium volume correlated positively with VLDL-cholesterol (r = 0.44; p = 0.03) and, albeit less than significantly, with age (r = 0.35; p = 0.09), triglycerides (r = 0.39; p = 0.05) and Framingham risk index (r = 0.37; p = 0.07). We also found that OPG correlated negatively with bone mineral density at the L2-L4 lumbar vertebrae (r = -0.54; p = 0.007) and femoral neck (r = -0.43; p = 0.04). CONCLUSIONS Although high levels of PTH should be considered a risk factor for cardiovascular death, the real role of severe SHPT on coronary calcification is to be clarified.
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Affiliation(s)
- F R Hernandes
- Nephrology Division, Federal University of São Paulo, São Paulo, Brazil.
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Barreto FC, Barreto DV, Moyses RMA, Neves CL, Jorgetti V, Draibe SA, Canziani ME, Carvalho AB. Osteoporosis in hemodialysis patients revisited by bone histomorphometry: a new insight into an old problem. Kidney Int 2006; 69:1852-7. [PMID: 16612334 DOI: 10.1038/sj.ki.5000311] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.9] [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: 01/18/2023]
Abstract
Osteoporosis in hemodialysis patients is associated with high morbidity and mortality and, although extensively studied by noninvasive methods, has never been assessed through bone biopsy. The aim of this study was to use histomorphometry to evaluate osteoporosis and identify factors related to its development in hemodialysis patients. We conducted a cross-sectional study involving 98 patients (35 women and 63 men; mean age: 48.4 +/- 13 years) on hemodialysis for 36.9 +/- 24.7 months. Patients were submitted to transiliac bone biopsy with double tetracycline labeling. The bone metabolism factors ionized calcium, phosphorus, bone alkaline phosphatase, deoxypyridinoline, intact parathyroid hormone, and 25(OH) vitamin D were evaluated, as were the bone remodeling cytokines osteoprotegerin (OPG), soluble receptor-activator of NF-kappabeta ligand (sRANKL) and tumor necrosis factor-alpha (TNF)alpha. Osteoporosis was defined as trabecular bone volume (BV/TV) greater than 1 s.d. below normal (men <17.4%; women <14.7%). Forty-five patients (46%) presented osteoporosis, which was correlated with white race. We found BV/TV to correlate with age, OPG/sRANKL ratio, TNFalpha levels, and length of amenorrhea. In multiple regression analysis adjusted for sex and age, length of amenorrhea, white race, and OPG/sRANKL ratio were independent determinants of BV/TV. Histomorphometric analysis demonstrated that osteoporotic patients presented normal eroded surface and low bone formation rate (BFR/BS). Osteoporosis is prevalent in hemodialysis patients. Low BFR/BS could be involved in its development, even when bone resorption is normal. Cytokines may also play a role as may traditional risk factors such as advanced age, hypogonadism, and white race.
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Affiliation(s)
- F C Barreto
- Department of Internal Medicine, Division of Nephrology, Federal University of São Paulo, Brazil.
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Braga Júnior JWR, Neves RMS, Pinheiro MM, Frisoli Júnior A, Castro CHM, Szejnfeld VL, Carvalho AB. Prevalence of low trauma fractures in long-term kidney transplant patients with preserved renal function. Braz J Med Biol Res 2005; 39:137-47. [PMID: 16400474 DOI: 10.1590/s0100-879x2006000100016] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [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: 11/21/2022] Open
Abstract
We evaluated the prevalence of low bone mineral density (BMD) and osteoporotic fractures in kidney transplantation (KT) patients and determined risk factors associated with osteoporotic fractures. The study was conducted on 191 patients (94 men and 97 women) with first KT for 3 years or more presenting stable and preserved renal function (serum creatinine levels lower than 2.5 mg/dl). KT patients were on immunosuppressive therapy and the cumulative doses of these drugs were also evaluated. BMD was determined by dual-energy X-ray absorptiometry at multiple sites (spine, femur and total body). Quantitative ultrasound of the calcaneus (broadband ultrasound attenuation, speed of sound, and stiffness index, SI) was also performed. Twenty-four percent (46) of all patients had either vertebral (29/46) or appendicular (17/46) fractures. We found osteoporosis and osteopenia in 8.5-13.4 and 30.9-35.1% of KT patients, respectively. Women had more fractures than men. In women, prevalent fractures were associated with diabetes mellitus [OR = 11.5, 95% CI (2.4-55.7)], time since menopause [OR = 3.7, 95% CI (1.2-11.9)], femoral neck BMD [OR = 1.99, 95% CI (1.4-2.8)], cumulative dose of steroids [OR = 1.1, 95% CI (1.02-1.12)] and low SI [OR = 1.1, 95% CI (1.0-1.2)]. In men, fractures were associated with lower lumbar spine BMD [OR = 1.75, 95% CI (1.1-2.7)], lower SI [OR = 1.1, 95% CI (1.03-1.13)], duration of dialysis [OR = 1.3, 95% CI (1.13-2.7)], and lower body mass index [OR = 1.24, 95% CI (1.1-1.4). Our results demonstrate high prevalence of low BMD and osteoporotic fractures in patients receiving a successful kidney transplant and indicate the need for specific intervention to prevent osteoporosis in this population.
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Affiliation(s)
- J W R Braga Júnior
- Departamento de Medicina Interna, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
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Lobão R, Carvalho AB, Cuppari L, Ventura R, Lazaretti-Castro M, Jorgetti V, Vieira JG, Cendoroglo M, Draibe SA. High prevalence of low bone mineral density in pre-dialysis chronic kidney disease patients: bone histomorphometric analysis. Clin Nephrol 2005; 62:432-9. [PMID: 15630902 DOI: 10.5414/cnp62432] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [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: 11/18/2022] Open
Abstract
UNLABELLED Chronic kidney disease (CKD) leads to reduced bone mineral density (BMD) in pre-dialysis and dialysis patients. A few studies have used dual-energy x-ray absorptiometry (DEXA) to assess BMD in pre-dialysis CKD patients and have shown low BMD to be highly prevalent. Until now there have been no studies reporting the histological features of low BMD in pre-dialysis CKD patients. AIM To determine the prevalence and histological features of low BMD in pre-dialysis CKD patients. METHOD Pre-dialysis CKD patients (n = 103, 46 females/57 males), median creatinine clearance of 29 (10 - 78) ml/min/ 1.73 m2, were evaluated using biochemical analysis and DEXA. Bone biopsies were obtained from those with low BMD. RESULTS Fifty (48.5%) out of the 103 patients had low BMD (LBD group) and 53 (51.5%) had normal BMD (NBD group). The risk for low BMD was increased in those patients with alkaline phosphatase levels above 190 U/l and intact-PTH (iPTH) below 70 pg/ml (p < 0.05). Demographic and biochemical parameters from both groups were comparable, except for lower body mass index (BMI) in LBD subjects (p = 0.04). Women who had been post-menopausal for at least 1 year comprised 65% (13/20) and 50% (13/26) of the LBD and NBD groups, respectively (p = NS). In 40 LBD patients, bone histomorphometry revealed adynamic bone disease (ABD, 52.5%), osteomalacia (OM, 42.5%) and mixed bone disease (MBD, 5%). Trabecular bone volume (BV/TV) was lower in ABD and OM patients. A nearly significant association was found between ABD and iPTH < or = 150 pg/ml (p = 0.056), whereas higher values of iPTH were associated with OM. Total alkaline phosphatase < or = 190 U/l was significantly associated with ABD, whereas higher values were associated with OM. No correlation was observed between BV/TV and BMD. CONCLUSION Low BMD is frequent in pre-dialysis CKD patients, and low turnover bone disease, manifesting as ABD and OM, was the hallmark of this bone loss.
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Affiliation(s)
- R Lobão
- Federal University of São Paulo, Escola Paulista de Medicina, São Paulo, Brazil
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Kato M, Demarini DM, Carvalho AB, Rego MAV, Andrade AV, Bonfim ASV, Loomis D. World at work: charcoal producing industries in northeastern Brazil. Occup Environ Med 2005; 62:128-32. [PMID: 15657196 PMCID: PMC1740946 DOI: 10.1136/oem.2004.015172] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- M Kato
- Fundacentro-CRBA, r. Alceu Amoroso Lima, 142, Pituba, Salvador/Bahia, 41820-770, Brazil.
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Oliveira BG, Duarte EM, Araújo RCMU, Ramos MN, Carvalho AB. A theoretical study of nonlinearity in heterocyclic hydrogen-bonded complexes. Spectrochim Acta A Mol Biomol Spectrosc 2005; 61:491-494. [PMID: 15582817 DOI: 10.1016/j.saa.2004.04.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2004] [Accepted: 04/28/2004] [Indexed: 05/24/2023]
Abstract
Ab initio calculations are performed at the MP2/6-311++G(d,p) and DFT/B3LYP/6-311++G(d,p) theoretical levels to obtain geometries, H-bond energies and harmonic infrared vibrational properties for the Cs symmetry structures of heterocyclic hydrogen-bonded complexes, CnHmY-HX. The H-bond lengths in DFT/B3LYP calculation level are in better agreement with the experimental values than the MP2 results. The geometry optimization are interpreted in terms of hydrogen bond nonlinearity represented by theta; and phi angles, once the hydrogen bond is formed among n-electrons pairs of the heteroatom in heterocyclic and the hydrogen atom in HX. The hydrogen bond energy after of the zero-point vibrational energy (ZPE) and basis set superposition error (BSSE) corrections are overestimated at DFT/B3LYP, whereas the MP2 BSSE corrections are very large than corresponding DFT/B3LYP. For example, the BSSE corrections for the C2H4S-HNC complex are 7.60 and 0.09 kJ mol(-1) in MP2 and DFT/B3LYP calculations levels, respectively. The new vibrational modes in infrared harmonic spectrum arising from complexation show several interesting features, especially the intermolecular stretching mode.
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Affiliation(s)
- B G Oliveira
- Departamento de Química, Universidade Federal da Paraíba, 58036-300-João Pessoa, PB, Brazil
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Oliveira BG, Santos ECS, Duarte EM, Araújo RCMU, Ramos MN, Carvalho AB. An MP2 and DFT study of heterocyclic hydrogen complexes CnHmY-HX with n=2, m=4 or 5, Y=O, S or N and X=F or Cl. Spectrochim Acta A Mol Biomol Spectrosc 2004; 60:1883-1887. [PMID: 15248964 DOI: 10.1016/j.saa.2003.10.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2003] [Revised: 06/12/2003] [Accepted: 10/13/2003] [Indexed: 05/24/2023]
Abstract
We present a theoretical study through MP2 ab initio molecular orbital calculations and B3LYP density functional theory with the 6-311++G(d,p) basis set of the heterocyclic hydrogen complexes, CnHmY-HX, where CnHmY = C2H4O, C2H5N and C2H4S, and X=F or Cl. This study aided in the elucidation the main changes in the structural, electronic and the vibrational properties in isolated species, due the hydrogen complexes formation, CnHmY-HX, revealing systematic tendencies in these chemical systems studied. The complexes has CS symmetry, with the HX subunit lying in the plane perpendicular to that of CYC nuclei of heterocyclic and acting as proton donor in forming a hydrogen bond to the heteroatom, Y. A weak secondary interaction between the CH2 groups of heterocyclics and the X atoms in HX causes a significant nonlinearity of the primary hydrogen bond. The hydrogen bond linearity deviations in these complexes due to secondary interactions are represented by theta angle. The MP2 intermolecular distances of complexes C2H5N-HF, C2H4O-HF and C2H4S-HF correspond the 1.652, 1.671 and 2.164 A, respectively, these results are in excellent agreement with experimental results of 1.700 and 2.193 A found for the last two complexes. In the same way, the MP2 values to theta angle, 14.7, 19.1 and 16.8 degrees, has a better reproduction in the experimental results of 16.5, 21.0 and 16.8 degrees, get to the C2H4O-HCl, C2H4S-HCl and C2H4S-HF complexes, respectively.
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Affiliation(s)
- B G Oliveira
- Departamento de Química, Universidade Federal da Paraíba, 58036-300-João Pessoa-PB, Brazil
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Gadelha AAM, Verçosa AFA, Lorena VMB, Nakazawa M, Carvalho AB, Souza WV, Ferreira AGP, Silva ED, Krieger MA, Goldenberg S, Gomes YM. Chagas' disease diagnosis: comparative analysis of recombinant ELISA with conventional ELISA and the haemagglutination test. Vox Sang 2003; 85:165-70. [PMID: 14516446 DOI: 10.1046/j.1423-0410.2003.00340.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [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: 11/20/2022]
Abstract
BACKGROUND AND OBJECTIVES Serological screening for Chagas' disease in the blood banks of South America is carried out by using two different assays that generally show a high number of inconclusive results. To establish a combination of two tests that can minimize the number of inconclusive results, we compared a recombinant enzyme-linked immunosorbent assay (ELISA) with two conventional tests. MATERIALS AND METHODS Serum samples from chagasic patients (n = 112), from non-chagasic individuals (n = 143) and from patients with other diseases (n = 32) were tested using three assays: recombinant ELISA (Rec-ELISA); conventional ELISA (Con-ELISA); and the indirect haemagglutination (IHA) test. RESULTS When we evaluated the data by matching the Rec-ELISA and the IHA test, 52 inconclusive results were obtained. When Rec-ELISA and Con-ELISA were matched, only four inconclusive results were observed. CONCLUSIONS Our investigation indicates that the use of two ELISAs with different antigen preparations provides an effective test combination for blood bank screening of Chagas' disease.
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Affiliation(s)
- A A M Gadelha
- Centro de Pesquisas Aggeu Magalhães/FIOCRUZ, Recife, PE, Brazil
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Ohe MN, Santos RO, Kunii IS, Carvalho AB, Abrahão M, Cervantes O, Lazaretti-Castro M, Vieira JGH. Usefulness of a rapid immunometric assay for intraoperative parathyroid hormone measurements. Braz J Med Biol Res 2003; 36:715-21. [PMID: 12792700 DOI: 10.1590/s0100-879x2003000600006] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [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: 11/22/2022] Open
Abstract
Intraoperative parathyroid hormone (IO-PTH) measurements have been proposed to improve operative success rates in primary, secondary and tertiary hyperparathyroidism (PHP, SHP and THP). Thirty-one patients requiring parathyroidectomy were evaluated retrospectively from June 2000 to January 2002. Sixteen had PHP, 7 SHP and 8 THP. Serum samples were taken at times 0 (before resection), 10, 20 and 30 min after resection of each abnormal parathyroid gland. Samples from 28 patients were frozen at -70 C for subsequent tests, whereas samples from three patients were tested while surgery was being performed. IO-PTH was measured using the Elecsys immunochemiluminometric assay (Roche, Mannheim, Germany). The time necessary to perform the assay was 9 min. All samples had a second measurement taken by a conventional immunofluorimetric method. We considered as cured patients who presented normocalcemia in PHP and THP, and normal levels of PTH in SHP one month after surgery and who remained in this condition throughout the follow-up of 1 to 20 months. When rapid PTH assay was compared with a routine immunofluorimetric assay, excellent correlation was observed (r = 0.959, P < 0.0001). IO-PTH measurement showed a rapid average decline of 78.8% in PTH 10 min after adenoma resection in PHP and all patients were cured. SHP patients had an average IO-PTH decrease of 89% 30 min after total parathyroidectomy and cure was observed in 85.7%. THP showed an average IO-PTH decrease of 91.9%, and cure was obtained in 87.5% of patients. IO-PTH can be a useful tool that might improve the rate of successful treatment of PHP, SHP and THP.
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Affiliation(s)
- M N Ohe
- Disciplina de Endocrinologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brasil.
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Carvalho AB, Dobo BA, Vibranovski MD, Clark AG. Identification of five new genes on the Y chromosome of Drosophila melanogaster. Proc Natl Acad Sci U S A 2001; 98:13225-30. [PMID: 11687639 PMCID: PMC60852 DOI: 10.1073/pnas.231484998] [Citation(s) in RCA: 131] [Impact Index Per Article: 5.7] [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: 11/18/2022] Open
Abstract
The heterochromatic state of the Drosophila Y chromosome has made the cloning and identification of Y-linked genes a challenging process. Here, we report application of a procedure to identify Y-linked gene fragments from the unmapped residue of the whole genome sequencing effort. Previously identified Y-linked genes appear in sequenced scaffolds as individual exons, apparently because many introns have become heterochromatic, growing to enormous size and becoming virtually unclonable. A TBLASTN search using all known proteins as query sequences, tested against a blastable database of the unmapped fragments, produced a number of matches consistent with this scenario. Reverse transcription-PCR and genetic methods were used to confirm those that are expressed, Y-linked genes. The five genes reported here include three protein phosphatases (Pp1-Y1, Pp1-Y2, and PPr-Y), an occludin-related gene (ORY), and a coiled-coils gene (CCY). This brings the total to nine protein-coding genes identified on the Drosophila Y chromosome. ORY and CCY may correspond, respectively, to the fertility factors ks-1 and ks-2, whereas the three protein phosphatases represent novel genes. There remains a strong functional coherence to male function among the genes on the Drosophila Y chromosome.
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Affiliation(s)
- A B Carvalho
- Departamento de Genética, Universidade Federal do Rio de Janeiro, Caixa Postal 68011 CEP 21944-970, Rio de Janeiro, Brazil.
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Schindler HC, Montenegro L, Montenegro R, Carvalho AB, Abath FG, Jaureguiberry G. Development and optimization of polymerase chain reaction-based malaria diagnostic methods and their comparison with quantitative buffy coat assay. Am J Trop Med Hyg 2001; 65:355-61. [PMID: 11693884 DOI: 10.4269/ajtmh.2001.65.355] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [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: 11/07/2022] Open
Abstract
Polymerase chain reaction (PCR)-based assays targeting the small-subunit rRNA were developed and evaluated, allowing for the simultaneous diagnosis of Plasmodium falciparum and Plasmodium vivax DNA in human blood samples. The PCR methods and quantitative buffy coat (QBC) were compared in 402 patients. The heminested PCR method showed a sensitivity of 97.4%, which was superior to the sensitivity of the QBC method (91.7%, P < 0.05), to simple PCR (84.6%, P < 0.001), and to PCR with digoxigenin labeling (PCR-DIG) (88.5%, P < 0.001). The PCR-DIG and QBC analyses were more sensitive than simple PCR (P < 0.003 and P < 0.05, respectively). There was no significant difference between the sensitivities of the QBC assay and the PCR-DIG assay. The specificity for the 3 PCR-based methods was 100%, superior to the specificity calculated for the QBC assay (88.95%, P < 0.009). The frequency of a positive result in groups from endemic areas but without detectable parasitemia increased, in order, from simple PCR, QBC test, PCR-DIG, to heminested PCR. An association between a positive PCR result and a history of malaria was also found. Taken together, these data suggest that this technology could be further developed to screen people with oligoparasitemia and to monitor malaria treatment.
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Affiliation(s)
- H C Schindler
- Departamento de Imunologia, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, Pernambuco, Brazil
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Cuppari L, Carvalho AB, Lobão RR, Martini LA, Cendoroglo M, Ventura RT, Draibe SA. Parathyroid hormone changes during phosphorus load in patients with chronic renal insufficiency with low serum parathyroid hormone or adynamic bone disease. Clin Nephrol 2001; 56:35-43. [PMID: 11499657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023] Open
Abstract
UNLABELLED Adynamic bone disease (ABD) is frequently associated with low serum parathyroid hormone (PTH) concentrations. Many clinical and therapeutic conditions have been associated with ABD, and recently, a low phosphorus intake accompanied by low serum concentration of phosphorus and PTH has been described. AIM To evaluate the parathyroid gland response of chronic renal insufficiency patients (CRI) with low serum PTH or ABD to a phosphorus load. METHODS We examined the effects of 0.5 and 1.0 g/d of phosphorus load over a period of 60 days in 18 patients with mild CRI with a bone biopsy showing ABD (n = 7) or with low serum PTH (serum intact PTH < or = 40 ng/l) and serum phosphorus < 4.5 mg/dl (n = 11). RESULTS Serum intact PTH increased significantly only after 1 g of phosphorus (58.5 to 83 ng/l) with a median percent increase of 72%. PTH secretion increased more in patients with lower basal PTH levels (81%). Serum phosphorus did not change significantly and urinary phosphorus increased from 487 to 1,062 mg/dl (p < 0.05). Significant decreases in serum ionized calcium (from 1.26 to 1.19 mmol/l) and calcitriol (from 34.5 to 24.9 pg/ml) were observed. Changes in PTH were inversely correlated with changes in serum ionized calcium (r = -0.54, p < 0.05) and the final PTH concentrations were positively correlated with changes in serum phosphorus (r= 0.52, p < 0.05). CONCLUSIONS The parathyroid glands of chronic renal insufficiency patients with "relative hypoparathyroidism" or ABD responded to a phosphorus load with an increase in serum PTH levels. The decrease in serum ionized calcium and calcitriol as well as minimal changes in serum phosphorus appeared to be involved in this response.
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Affiliation(s)
- L Cuppari
- Division of Nephrology, Escola Paulista de Medicina, Federal University of São Paulo, Brazil
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