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Calió ML, Mosini AC, Ko GM, Porcionatto M. P4‐686: LEPTIN INDUCES PROLIFERATION OF NEURAL PROGENITORS IN ADULT TRANSGENIC MOUSE CELLS. Alzheimers Dement 2019. [DOI: 10.1016/j.jalz.2019.09.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | | | - Gui Mi Ko
- Universidade Federal de São Paulo São Paulo Brazil
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Mazzonetto PC, Ariza CB, Ocanha SG, de Souza TA, Ko GM, Menck CFM, Massironi SMG, Porcionatto MA. Mutation in NADPH oxidase 3 (NOX3) impairs SHH signaling and increases cerebellar neural stem/progenitor cell proliferation. Biochim Biophys Acta Mol Basis Dis 2019; 1865:1502-1515. [PMID: 30853403 DOI: 10.1016/j.bbadis.2019.02.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 02/25/2019] [Accepted: 02/27/2019] [Indexed: 01/03/2023]
Abstract
Abnormalities in cerebellar structure and function may cause ataxia, a neurological dysfunction of motor coordination. In the course of the present study, we characterized a mutant mouse lineage with an ataxia-like phenotype. We localized the mutation on chromosome 17 and mapped it to position 1534 of the Nox3 gene, resulting in p.Asn64Tyr change. The primary defect observed in Nox3eqlb mice was increased proliferation of cerebellar granule cell precursors (GCPs). cDNA microarray comparing Nox3eqlb and BALB/c neonatal cerebellum revealed changes in the expression of genes involved in the control of cell proliferation. Nox3eqlb GCPs and NSC produce higher amounts of reactive oxygen species (ROS) and upregulate the expression of SHH target genes, such as Gli1-3 and Ccnd1 (CyclinD1). We hypothesize that this new mutation is responsible for an increase in proliferation via stimulation of the SHH pathway. We suggest this mutant mouse lineage as a new model to investigate the role of ROS in neuronal precursor cell proliferation.
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Affiliation(s)
- P C Mazzonetto
- Department of Biochemistry, Laboratory of Neurobiology, Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP), Brazil
| | - C B Ariza
- Department of Biochemistry, Laboratory of Neurobiology, Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP), Brazil; Department of General Pathology, Center of Biological Sciences, Universidade Estadual de Londrina (UEL), Brazil
| | - S G Ocanha
- Department of Biochemistry, Laboratory of Neurobiology, Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP), Brazil
| | - T A de Souza
- Department of Microbiology, Institute of Biomedical Sciences, Universidade de São Paulo (USP), Brazil
| | - G M Ko
- Department of Biochemistry, Laboratory of Neurobiology, Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP), Brazil
| | - C F M Menck
- Department of Microbiology, Institute of Biomedical Sciences, Universidade de São Paulo (USP), Brazil
| | - S M G Massironi
- Department of Immunology, Institute of Biomedical Sciences, Universidade de São Paulo (USP), Brazil
| | - M A Porcionatto
- Department of Biochemistry, Laboratory of Neurobiology, Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP), Brazil.
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Calió ML, Salles GN, Marinho DS, Ko GM, Porcionatto M. P4‐217: LEPTIN REDUCES PATHOLOGY AND IMPROVES ADULT NEUROGENESIS IN A TRANSGENIC MOUSE MODEL OF ALZHEIMER'S DISEASE. Alzheimers Dement 2018. [DOI: 10.1016/j.jalz.2018.07.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | - Gui Mi Ko
- Universidade Federal de São PauloSão PauloBrazil
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da Silva RM, Ko GM, Silva RF, Vieira LC, de Paula RV, Marumo JT, Ikegami A, Bellini MH. Essential Elements as Biomarkers of Acute Kidney Injury and Spontaneous Reversion. Biol Trace Elem Res 2018; 182:303-308. [PMID: 28770412 DOI: 10.1007/s12011-017-1091-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 06/27/2017] [Indexed: 01/04/2023]
Abstract
Acute kidney injury (AKI) is an important health problem and can be caused by number of factors. The use of aminoglycosides, such as gentamicin, is one of these factors. Recently, an effort has been made to find biomarkers to guide treatment protocols. Inductively coupled plasma optical emission spectroscopy (ICP-OES) was used to estimate the contents of Ca, Cu, Fe, K, Mg, Mn, Na, P, and Zn in serum and urine of the healthy, AKI, and spontaneous recovery (SR) groups of animals. The animal model of AKI and SR was validated by measuring serum and urinary urea and creatinine. The quantitative determination of the elements showed a decrease in serum levels of Ca, and Fe in the AKI group (P<0.01 vs. healthy), with a return to normal levels in the SR group, without a significant difference between the healthy and SR groups. In the urine samples, there was a decrease in P and Na levels in the AKI group (P<0.001 and P<0.01 vs. healthy), but Ca levels were increased in this group compared with the healthy and SR groups (P<0.01). These findings indicate that mineral elements might be useful as biomarkers for AKI.
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Affiliation(s)
| | - Gui Mi Ko
- Federal University of São Paulo, R. Pedro de Toledo, São Paulo, 871, Brazil
| | | | | | | | - Júlio Takehiro Marumo
- Nuclear and Energy Research Institute, Av. Professor Lineu Prestes, São Paulo, 2242, Brazil
| | - Amanda Ikegami
- Nuclear and Energy Research Institute, Av. Professor Lineu Prestes, São Paulo, 2242, Brazil
| | - Maria Helena Bellini
- Nuclear and Energy Research Institute, Av. Professor Lineu Prestes, São Paulo, 2242, Brazil.
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Marinho DS, Calió ML, Santos MA, Ko GM, Teixeira CP, Carbonel AF, Lisbôa-Nascimento T, Castro RA, Simões RS, Bertoncini CRA. Evaluation of the isoflavones and estrogen effects on the rat adrenal. Gynecol Endocrinol 2017; 33:811-815. [PMID: 28454492 DOI: 10.1080/09513590.2017.1318371] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The aim of this study was to evaluate the morphometry and the gene expression of Ki-67, VEGF and caspase 3 and the stress oxidative in the adrenal gland of ovariectomized rats treated with estrogen or isoflavones. We used 15 Wistar rats ovariectomized treated with isoflavones or estrogen during 30 days. At the end of the treatment, the left adrenal gland was removed for subsequent histological studies and the right was used to evaluate gene expression of angiogenesis (VEGF-A), cell proliferation (Ki-67), apoptose (caspase 3 clivated) and oxidative stress. Treatment with estrogen showed a largest increase in the layers of the adrenal cortex than with isoflavones. These hypertrofic effects agree with higher expression elevation of Ki67 and VEGF, which did not occur with the caspase 3, indicating that isoflavones have great proliferative effect on the adrenal gland. Similar results were also observed on superoxide quantification show that isoflavone has a protective effect against oxidative stress. Our results indicate positively the trophic therapeutic potential of isoflavones has a protective effect and can contribute to the development of effective therapies to decrease the symptoms of menopause.
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Affiliation(s)
- Darci Souza Marinho
- a Department of Morphology and Genetics , Universidade Federal de São Paulo , Brazil
| | | | | | - Gui Mi Ko
- c Department of Pharmacology , Universidade Federal de São Paulo , Brazil
| | | | | | | | - Rodrigo Aquino Castro
- e Department of Obstetrics and Gynecology , Universidade Federal de São Paulo , Brazil , and
| | - Ricardo Santos Simões
- f Department of Obstetrics and Gynecology , Faculdade de Medicina da Universidade de São Paulo (FMUSP) , Brazil
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Calió ML, Marinho DS, Ko GM, Ribeiro RR, Carbonel AF, Oyama LM, Ormanji M, Guirao TP, Calió PL, Reis LA, Simões MDJ, Lisbôa-Nascimento T, Ferreira AT, Bertoncini CRA. Transplantation of bone marrow mesenchymal stem cells decreases oxidative stress, apoptosis, and hippocampal damage in brain of a spontaneous stroke model. Free Radic Biol Med 2014; 70:141-54. [PMID: 24525001 DOI: 10.1016/j.freeradbiomed.2014.01.024] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 01/16/2014] [Accepted: 01/20/2014] [Indexed: 12/21/2022]
Abstract
Stroke is the most common cause of motor disabilities and is a major cause of mortality worldwide. Adult stem cells have been shown to be effective against neuronal degeneration through mechanisms that include both the recovery of neurotransmitter activity and a decrease in apoptosis and oxidative stress. We chose the lineage stroke-prone spontaneously hypertensive rat (SHRSP) as a model for stem cell therapy. SHRSP rats can develop such severe hypertension that they generally suffer a stroke at approximately 1 year of age. The aim of this study was to evaluate whether mesenchymal stem cells (MSCs) decrease apoptotic death and oxidative stress in existing SHRSP brain tissue. The results of qRT-PCR assays showed higher levels of the antiapoptotic Bcl-2 gene in the MSC-treated animals, compared with untreated. Our study also showed that superoxide, apoptotic cells, and by-products of lipid peroxidation decreased in MSC-treated SHRSP to levels similar those found in the animal controls, Wistar Kyoto rats. In addition, we saw a repair of morphological damage at the hippocampal region after MSC transplantation. These data suggest that MSCs have neuroprotective and antioxidant potential in stroke-prone spontaneously hypertensive rats.
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Affiliation(s)
- Michele Longoni Calió
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP 04023-062, Brazil
| | - Darci Sousa Marinho
- Centro de Desenvolvimento de Modelos Experimentais para Medicina e Biologia, Universidade Federal de São Paulo, São Paulo, SP 04023-062, Brazil
| | - Gui Mi Ko
- Centro de Desenvolvimento de Modelos Experimentais para Medicina e Biologia, Universidade Federal de São Paulo, São Paulo, SP 04023-062, Brazil
| | | | - Adriana Ferraz Carbonel
- Departamento de Morfologia, Universidade Federal de São Paulo, São Paulo, SP 04023-062, Brazil
| | - Lila Missae Oyama
- Departamento de Fisiologia, Universidade Federal de São Paulo, São Paulo, SP 04023-062, Brazil
| | - Milene Ormanji
- Centro de Desenvolvimento de Modelos Experimentais para Medicina e Biologia, Universidade Federal de São Paulo, São Paulo, SP 04023-062, Brazil
| | - Tatiana Pinoti Guirao
- Centro de Desenvolvimento de Modelos Experimentais para Medicina e Biologia, Universidade Federal de São Paulo, São Paulo, SP 04023-062, Brazil
| | - Pedro Luiz Calió
- Departamento de Odontologia, Universidade Santa Cecília, Santos, SP, Brazil
| | - Luciana Aparecida Reis
- Departamento de Nefrologia, Universidade Federal de São Paulo, São Paulo, SP 04023-062, Brazil
| | - Manuel de Jesus Simões
- Departamento de Morfologia, Universidade Federal de São Paulo, São Paulo, SP 04023-062, Brazil
| | - Telma Lisbôa-Nascimento
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP 04023-062, Brazil
| | - Alice Teixeira Ferreira
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP 04023-062, Brazil
| | - Clélia Rejane Antônio Bertoncini
- Centro de Desenvolvimento de Modelos Experimentais para Medicina e Biologia, Universidade Federal de São Paulo, São Paulo, SP 04023-062, Brazil.
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Paiva KBS, Silva-Valenzuela MDG, Massironi SMG, Ko GM, Siqueira FM, Nunes FD. Differential Shh, Bmp and Wnt gene expressions during craniofacial development in mice. Acta Histochem 2010; 112:508-17. [PMID: 19608221 DOI: 10.1016/j.acthis.2009.05.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [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: 03/09/2009] [Revised: 05/05/2009] [Accepted: 05/19/2009] [Indexed: 01/22/2023]
Abstract
In this study, Bmp-4, Wnt-5a and Shh gene expressions were compared during early craniofacial development in mice by comparative non-isotopic in situ hybridization. Wild-type C57BL/6J mice were studied at various stages of embryonic development (from 8.5- to 13.5-day-old embryos--E8.5-13.5). During early odontogenesis, transcripts for Bmp-4, Shh and Wnt-5a were co-localised at the tooth initiation stage. At E8.5, Shh mRNA expression was restricted to diencephalon and pharyngeal endoderm. Before maxillae and mandible ossification, Bmp-4 and Wnt-5a signals were detected in the mesenchymal cells and around Meckel's cartilage. During palatogenesis, Shh was expressed only in the epithelium and Wnt-5a only in the mesenchyme of the elevating palatal shelves. During tongue development, Shh expression was found in mesenchyme, probably contributing to tongue miogenesis, while Wnt-5a signal was in the epithelium, possibly during placode development and papillae formation. Taken together, these findings suggest that Bmp-4, Shh and Wnt-5a gene expressions may act together on the epithelial-mesenchymal interactions occurring in several aspects of the early mouse craniofacial development, such as odontogenesis, neuronal development, maxillae and mandible ossification, palatogenesis and tongue formation.
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Ko GM, Rosenkranz A, Bertoncini CRA, Jurkiewicz NH, Franco MG, Jurkiewicz A. Methods of acute biological assays in guinea-pigs for the study of toxicity and innocuity of drugs and chemicals. BRAZ J PHARM SCI 2010. [DOI: 10.1590/s1984-82502010000200012] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
In this study, 602 samples were tested by the following assays performed at the animal facilities (Cedeme) of the Federal University of São Paulo (UNIFESP): 385 for dermal irritability, 90 for ocular irritability (discontinued in 1995), 31 for systemic toxicity by injection, 26 for oral acute toxicity, 15 for toxicity by intracutaneous injection, 15 for skin sensitization, 15 for toxicity of serum and vaccines for human use, 14 for toxicity by intramuscular implantation, 7 for pyrogens, 2 for acute dermal toxicity, and 2 for irritation of mucous membrane. The following agents were tested: cosmetics and related substances (42.0%), chemicals used in industry (32.9%), plastics, rubber, and other polymers (15.9%), agrotoxics (4.0%), medicines (2.7%), and vaccines (2.5%). In the present description, emphasis was given to tests of dermal irritability and sensitization. This work was conducted entirely in animal facilities, according to our general belief that animal facilities at universities, while considering ethic principles and sanitary, genetic, nutritional, and pathophysiological controls, also require laboratories specialized in areas such as transgenics, cryopreservation, ambiental physiology, functional genomics, alternative models, and mainly activities and research on methods in toxicology, as focused in this study.
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Affiliation(s)
| | - Adela Rosenkranz
- Federal University of São Paulo; Federal University of São Paulo
| | | | | | | | - Aron Jurkiewicz
- Federal University of São Paulo; Federal University of São Paulo
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Nunes FD, Valenzuela MDGS, Rodini CO, Massironi SMG, Ko GM. Localization of Bmp-4, Shh and Wnt-5a transcripts during early mice tooth development by in situ hybridization. Braz Oral Res 2008; 21:127-33. [PMID: 17589647 DOI: 10.1590/s1806-83242007000200006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2006] [Accepted: 01/03/2007] [Indexed: 11/21/2022] Open
Abstract
A comparative nonisotopic in situ hybridization (ISH) analysis was carried out for the detection of Bmp-4, Shh and Wnt-5a transcripts during mice odontogenesis from initiation to cap stage. Bmp-4 was expressed early in the epithelium and then in the underlying mesenchyme. Shh expression was seen in the odontogenic epithelial lining thickening, being stronger in the enamel knot area, during the cap stage. Wnt-5a transcripts were expressed only in the mesenchyme during the initiation, bud and cap stages, with strong expression in the dental mesenchyme during the bud stage. The present results showed that Bmp-4, Shh and Wnt-5a are expressed since the very early stages of tooth development, and they suggest that the Wnt-5a gene is expressed in different cell populations than Bmp-4 and Shh.
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Affiliation(s)
- Fábio Daumas Nunes
- Department of Oral Pathology, School of Dentistry, University of São Paulo, Av. Lineu Prestes 2227, Ciudad Universitária, São Paulo, CEP 05508-900 SP, Brazil.
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Iuras A, Telles MM, Bertoncini CRA, Ko GM, de Andrade IS, Silveira VLF, Ribeiro EB. Central administration of a nitric oxide precursor abolishes both the hypothalamic serotonin release and the hypophagia induced by interleukin-1beta in obese Zucker rats. ACTA ACUST UNITED AC 2005; 124:145-50. [PMID: 15544852 DOI: 10.1016/j.regpep.2004.07.007] [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] [Received: 04/01/2004] [Accepted: 07/02/2004] [Indexed: 01/23/2023]
Abstract
Serotonin-induced anorexia has long been recognized as an important part of the CNS mechanisms controlling energy balance. More recently, interleukin-1beta and nitric oxide have been suggested to influence this control, possibly through modulation of hypothalamic serotonin. The present work aimed at investigating the interaction of these systems. We addressed whether 5-HT is affected during IL-1beta-induced anorexia in obese Zucker rats and the influence of the central NO system on this IL-1beta/5-HT interaction. Using microdialysis, we observed that an intracerebroventricular injection of 10 ng IL-1beta significantly stimulated 5-HT extracellular levels in the VMH, with a peak variation of 102+/-41% above baseline. IL-1beta also significantly reduced the 4-h feeding by 33% and the 24-h feeding by 42%. Contrarily, these effects were absent when IL-1beta was injected 2 h after the i.c.v. administration of 20 microg of the NO precursor L-arginine. The results suggest that, in obese Zucker rats, activation of the serotonergic system in the medial hypothalamus participates in IL-1beta-induced anorexia. Since L-arginine, probably through NO stimulation, abolished both the anorexia and the serotonergic activation, it can be proposed that the NO system, either directly or indirectly, counteracts IL-1beta anorexia. The hypothalamic serotonergic system is likely to mediate this NO effect.
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Affiliation(s)
- Anderson Iuras
- Department of Physiology, Federal University of São Paulo, Rua Botucatu, 862-2 Andar, Vila Clementino, São Paulo, SP 04023-060, Brazil
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