1
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Lin‐Wang HT, Damiani LP, Farias EDS, Bajgelman MC, Gun C. Longitudinal study comparing IgG antibodies induced by heterologous prime-boost COVID-19 vaccine. J Med Virol 2023; 95:e28379. [PMID: 36478244 PMCID: PMC9877967 DOI: 10.1002/jmv.28379] [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: 09/08/2022] [Revised: 11/08/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022]
Abstract
Vaccines are critical cost-effective tools to control the COVID-19 pandemic. The heterologous prime-boost vaccination has been used by many countries to overcome supply issues, so the effectiveness and safety of this strategy need to be better clarified. This study aims to verify the effect of heterologous prime-boost COVID-19 vaccination on healthcare professionals from Dante Pazzanese Hospital in Brazil. It was performed serological assays of vaccinated individuals after 2-dose of CoronaVac (Sinovac; n = 89) or ChAdOx1 nCoV-19 (Oxford-AstraZeneca; n = 166) followed by a BNT162b2 booster (Pfizer-BioNTech; n = 255). The serum antibodies anti-S (spike), anti-N (nucleocapsid), and anti-RBD (receptor binding domain) were assessed by enzyme-linked immunosorbent assay. The heterologous booster dose induced a 10-fold higher anti-Spike antibody regardless of the 2-dose of a prime vaccine. It was strikingly observed that BNT162b2 enhanced levels of anti-spike antibodies, even in those individuals who did not previously respond to the 2-dose of CoronaVac. In conclusion, the heterologous scheme of vaccination using mRNA as a booster vaccine efficiently enhanced the antibody response against SARS-CoV-2, especially benefiting those elderly who were seronegative with a virus-inactivated vaccine.
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Affiliation(s)
- Hui Tzu Lin‐Wang
- Laboratory of Molecular Biology, Research DivisionDante Pazzanese Institute of CardiologySão PauloBrazil
| | - Lucas Petri Damiani
- Statistics and Epidemiology Department, Research DivisionDante Pazzanese Institute of CardiologySão PauloBrazil,Academic Research OperationsAlbert Einstein Israelite HospitalSão PauloBrazil
| | - Eduardo da Silva Farias
- Statistics and Epidemiology Department, Research DivisionDante Pazzanese Institute of CardiologySão PauloBrazil
| | - Marcio Chaim Bajgelman
- Brazilian National Laboratory for Biosciences (LNBio)Center for Research in Energy and Materials (CNPEM)CampinasBrazil
| | - Carlos Gun
- Teaching and Research DivisionDante Pazzanese Institute of CardiologySão PauloBrazil
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2
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Ribeiro-Filho HV, Jara GE, Batista FAH, Schleder GR, Costa Tonoli CC, Soprano AS, Guimarães SL, Borges AC, Cassago A, Bajgelman MC, Marques RE, Trivella DBB, Franchini KG, Figueira ACM, Benedetti CE, Lopes-de-Oliveira PS. Structural dynamics of SARS-CoV-2 nucleocapsid protein induced by RNA binding. PLoS Comput Biol 2022; 18:e1010121. [PMID: 35551296 PMCID: PMC9129039 DOI: 10.1371/journal.pcbi.1010121] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 05/24/2022] [Accepted: 04/19/2022] [Indexed: 12/23/2022] Open
Abstract
The nucleocapsid (N) protein of the SARS-CoV-2 virus, the causal agent of COVID-19, is a multifunction phosphoprotein that plays critical roles in the virus life cycle, including transcription and packaging of the viral RNA. To play such diverse roles, the N protein has two globular RNA-binding modules, the N- (NTD) and C-terminal (CTD) domains, which are connected by an intrinsically disordered region. Despite the wealth of structural data available for the isolated NTD and CTD, how these domains are arranged in the full-length protein and how the oligomerization of N influences its RNA-binding activity remains largely unclear. Herein, using experimental data from electron microscopy and biochemical/biophysical techniques combined with molecular modeling and molecular dynamics simulations, we show that, in the absence of RNA, the N protein formed structurally dynamic dimers, with the NTD and CTD arranged in extended conformations. However, in the presence of RNA, the N protein assumed a more compact conformation where the NTD and CTD are packed together. We also provided an octameric model for the full-length N bound to RNA that is consistent with electron microscopy images of the N protein in the presence of RNA. Together, our results shed new light on the dynamics and higher-order oligomeric structure of this versatile protein. The nucleocapsid (N) protein of the SARS-CoV-2 virus plays an essential role in virus particle assembly as it specifically binds to and wraps the virus genomic RNA into a well-organized structure known as the ribonucleoprotein. Understanding how the N protein wraps around the virus RNA is critical for the development of strategies to inhibit virus assembly within host cells. One of the limitations regarding the molecular structure of the ribonucleoprotein, however, is that the N protein has several unstructured and mobile regions that preclude the resolution of its full atomic structure. Moreover, the N protein can form higher-order oligomers, both in the presence and absence of RNA. Here we employed computational methods, supported by experimental data, to simulate the N protein structural dynamics in the absence and presence of RNA. Our data suggest that the N protein forms structurally dynamic dimers in the absence of RNA, with its structured N- and C-terminal domains oriented in extended conformations. In the presence of RNA, however, the N protein assumes a more compact conformation. Our model for the oligomeric structure of the N protein bound to RNA helps to understand how N protein dimers interact to each other to form the ribonucleoprotein.
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Affiliation(s)
- Helder Veras Ribeiro-Filho
- Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Gabriel Ernesto Jara
- Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | | | - Gabriel Ravanhani Schleder
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Celisa Caldana Costa Tonoli
- Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Adriana Santos Soprano
- Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Samuel Leite Guimarães
- Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Antonio Carlos Borges
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Alexandre Cassago
- Brazilian Nanotechnology National Laboratory, Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Marcio Chaim Bajgelman
- Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Rafael Elias Marques
- Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | | | - Kleber Gomes Franchini
- Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | | | - Celso Eduardo Benedetti
- Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
- * E-mail: (CEB); (PSLO)
| | - Paulo Sergio Lopes-de-Oliveira
- Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
- * E-mail: (CEB); (PSLO)
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3
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Lin-Wang HT, Lemes RC, Farias EDS, Bajgelman MC, Franchini KG, Viana R, Gun C. Sequential IgG antibody monitoring for virus-inactivated and adenovirus-vectored COVID-19 vaccine in Brazilian healthcare workers. J Med Virol 2022; 94:3714-3721. [PMID: 35420709 PMCID: PMC9088645 DOI: 10.1002/jmv.27782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/30/2022] [Accepted: 04/11/2022] [Indexed: 11/09/2022]
Abstract
Vaccination certainly is the best way to fight against the COVID-19 pandemic. In this study, the seroconversion effectiveness of two vaccines against SARS-CoV-2 was assessed in healthcare workers: virus-inactivated CoronaVac (CV, n=303), and adenovirus-vectored Oxford-AstraZeneca (AZ, n=447). The IgG antibodies anti-spike glycoprotein and anti-nucleocapsid protein were assessed by Enzyme-Linked Immunosorbent Assay (ELISA) at the time before vaccination (T1), before the second dose (T2), and 30 days after the second dose (T3). Of all individuals vaccinated with AZ, 100% (n=447) exhibited seroconversion, compared to 91% (n=276) that were given CV vaccine. Among individuals who did not respond to the CV, only three individuals showed a significant increase in the antibody level four months later the booster dose. A lower seroconversion rate was observed in elders immunized with CV vaccine probably due to the natural immune senescence, or peculiarity of this vaccine. The AZ vaccine induced a higher humoral response; however, more common side effects were also observed. Non-vaccinated convalescent individuals revealed a similar rate of anti-spike IgG to individuals that were given 2 doses of CV vaccine, which suggests that only a one-shot COVID-19 vaccine could produce an effective immune response in convalescents. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Hui Tzu Lin-Wang
- Laboratory of Molecular Investigation in Cardiology, Dante Pazzanese Institute of Cardiology, São Paulo, Brazil
| | - Rogerio Correa Lemes
- Statistic and Epidemiology Laboratory, Dante Pazzanese Institute of Cardiology, São Paulo, Brazil
| | - Eduardo da Silva Farias
- Statistic and Epidemiology Laboratory, Dante Pazzanese Institute of Cardiology, São Paulo, Brazil
| | - Marcio Chaim Bajgelman
- Brazilian Biosciences National Laboratory, Center for Research in Energy and Materials, Campinas, Brazil
| | - Kleber Gomes Franchini
- Brazilian Biosciences National Laboratory, Center for Research in Energy and Materials, Campinas, Brazil
| | - Renata Viana
- Research division, Dante Pazzanese Institute of Cardiology, São Paulo, Brazil
| | - Carlos Gun
- Research division, Dante Pazzanese Institute of Cardiology, São Paulo, Brazil
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4
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Semionatto IF, Palameta S, Toscaro JM, Manrique-Rincón AJ, Ruas LP, Paes Leme AF, Bajgelman MC. Extracellular vesicles produced by immunomodulatory cells harboring OX40 ligand and 4-1BB ligand enhance antitumor immunity. Sci Rep 2020; 10:15160. [PMID: 32939048 PMCID: PMC7495001 DOI: 10.1038/s41598-020-72122-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 08/19/2020] [Indexed: 01/08/2023] Open
Abstract
Genetically modified tumor cells harboring immunomodulators may be used as therapeutic vaccines to stimulate antitumor immunity. The therapeutic benefit of these tumor vaccines is extensively investigated and mechanisms by which they boost antitumor response may be further explored. Tumor cells are large secretors of extracellular vesicles (EVs). These EVs are able to vehiculate RNA and proteins to target cells, and engineered EVs also vehiculate recombinant proteins. In this study, we explore immunomodulatory properties of EVs derived from antitumor vaccines expressing the TNFSF ligands 4-1BBL and OX40L, modulating immune response mediated by immune cells and eliminating tumors. Our results suggest that the EVs secreted by genetically modified tumor cells harboring TNFSF ligands can induce T cell proliferation, inhibit the transcription factor FoxP3, associated with the maintenance of Treg phenotype, and enhance antitumor activity mediated by immune cells. The immunomodulatory extracellular vesicles have potential to be further engineered for developing new approaches for cancer therapy.
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Affiliation(s)
- Isadora Ferraz Semionatto
- Brazilian Biosciences National Laboratory, Center for Research in Energy and Materials, Campinas, SP, Brazil.,Institute of Biology, University of Campinas, Campinas, SP, Brazil
| | - Soledad Palameta
- Brazilian Biosciences National Laboratory, Center for Research in Energy and Materials, Campinas, SP, Brazil.,Institute of Biology, University of Campinas, Campinas, SP, Brazil
| | - Jéssica Marcelino Toscaro
- Brazilian Biosciences National Laboratory, Center for Research in Energy and Materials, Campinas, SP, Brazil.,Medical School, University of Campinas, Campinas, SP, Brazil
| | - Andrea Johanna Manrique-Rincón
- Brazilian Biosciences National Laboratory, Center for Research in Energy and Materials, Campinas, SP, Brazil.,Medical School, University of Campinas, Campinas, SP, Brazil
| | - Luciana Pereira Ruas
- Brazilian Biosciences National Laboratory, Center for Research in Energy and Materials, Campinas, SP, Brazil
| | - Adriana Franco Paes Leme
- Brazilian Biosciences National Laboratory, Center for Research in Energy and Materials, Campinas, SP, Brazil.,Institute of Biology, University of Campinas, Campinas, SP, Brazil
| | - Marcio Chaim Bajgelman
- Brazilian Biosciences National Laboratory, Center for Research in Energy and Materials, Campinas, SP, Brazil. .,Institute of Biology, University of Campinas, Campinas, SP, Brazil. .,Medical School, University of Campinas, Campinas, SP, Brazil.
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5
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Lacerda JZ, Ferreira LC, Lopes BC, Aristizábal-Pachón AF, Bajgelman MC, Borin TF, Zuccari DAPDC. Therapeutic Potential of Melatonin in the Regulation of MiR-148a-3p and Angiogenic Factors in Breast Cancer. Microrna 2020; 8:237-247. [PMID: 30806335 DOI: 10.2174/2211536608666190219095426] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [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: 10/31/2018] [Revised: 11/23/2018] [Accepted: 02/06/2019] [Indexed: 12/28/2022]
Abstract
BACKGROUND The high mortality rate of breast cancer is related to the occurrence of metastasis, a process that is promoted by tumor angiogenesis. MicroRNAs are small molecules of noncoding mRNA that play a key role in gene regulation and are directly involved in the progression and angiogenesis of various tumor types, including breast cancer. Several miRNAs have been described as promoters or suppressors angiogenesis and may be associated with tumor growth and metastasis. Melatonin is an oncostatic agent with a capacity of modifying the expression of innumerable genes and miRNAs related to cancer. OBJECTIVE The aim of this study was to evaluate the role of melatonin and the tumor suppressor miR- 148a-3p on angiogenesis of breast cancer. METHOD MDA-MB-231 cells were treated with melatonin and modified with the overexpression of miR-148a-3p. The relative quantification in real-time of miR-148a-3p, IGF-IR and VEGF was performed by real-time PCR. The protein expression of these targets was performed by immunocytochemistry and immunohistochemistry. Survival, migration and invasion rates of tumor cells were evaluated. Finally, the xenograft model of breast cancer was performed to confirm the role of melatonin in the tumor. RESULTS The melatonin was able to increase the gene level of miR-148a-3p and decreased the gene and protein expression of IGF-1R and VEGF, both in vitro and in vivo. In addition, it also had an inhibitory effect on the survival, migration and invasion of breast tumor cells. CONCLUSION Our results confirm the role of melatonin in the regulation of miR-148a-3p and decrease of angiogenic factors.
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Affiliation(s)
- Jéssica Zani Lacerda
- Sao Paulo State University (Unesp), Institute of Biosciences, Humanities and Exact Sciences (Ibilce), Sao Jose do Rio Preto (SP), Brazil.,Laboratory of Molecular Research in Cancer (LIMC), Medical School of Sao Jose do Rio Preto (FAMERP), Sao Jose do Rio Preto (SP), Brazil
| | - Lívia Carvalho Ferreira
- Laboratory of Molecular Research in Cancer (LIMC), Medical School of Sao Jose do Rio Preto (FAMERP), Sao Jose do Rio Preto (SP), Brazil
| | - Beatriz Camargo Lopes
- Sao Paulo State University (Unesp), Institute of Biosciences, Humanities and Exact Sciences (Ibilce), Sao Jose do Rio Preto (SP), Brazil.,Laboratory of Molecular Research in Cancer (LIMC), Medical School of Sao Jose do Rio Preto (FAMERP), Sao Jose do Rio Preto (SP), Brazil
| | - Andrés Felipe Aristizábal-Pachón
- Laboratory of Molecular Genetics and Bioinformatics (LGMB), Faculty of Medicine of Ribeirao Preto, University of Sao Paulo (FMRP/USP), Ribeirao Preto (SP), Brazil
| | - Marcio Chaim Bajgelman
- Laboratory of Biosciences of the National Center of Research in Energy and Materials (LNBio/CNPEM), Campinas (SP), Brazil
| | - Thaiz Ferraz Borin
- Georgia Cancer Center, Augusta University, 1120 15th Street, Augusta, GA 30912, United States
| | - Debora Aparecida Pires de Campos Zuccari
- Sao Paulo State University (Unesp), Institute of Biosciences, Humanities and Exact Sciences (Ibilce), Sao Jose do Rio Preto (SP), Brazil.,Laboratory of Molecular Research in Cancer (LIMC), Medical School of Sao Jose do Rio Preto (FAMERP), Sao Jose do Rio Preto (SP), Brazil
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6
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Lima TI, Guimarães DSPSF, Oliveira AG, Araujo H, Sponton CHG, Souza-Pinto NC, Saito Â, Figueira ACM, Palameta S, Bajgelman MC, Calixto A, Pinto S, Mori MA, Orofino J, Perissi V, Mottis A, Auwerx J, Silveira LR. Opposing action of NCoR1 and PGC-1α in mitochondrial redox homeostasis. Free Radic Biol Med 2019; 143:203-208. [PMID: 31408725 DOI: 10.1016/j.freeradbiomed.2019.08.006] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/06/2019] [Accepted: 08/06/2019] [Indexed: 12/20/2022]
Abstract
The ability to respond to fluctuations of reactive oxygen species (ROS) within the cell is a central aspect of mammalian physiology. This dynamic process depends on the coordinated action of transcriptional factors to promote the expression of genes encoding for antioxidant enzymes. Here, we demonstrate that the transcriptional coregulators, PGC-1α and NCoR1, are essential mediators of mitochondrial redox homeostasis in skeletal muscle cells. Our findings reveal an antagonistic role of these coregulators in modulating mitochondrial antioxidant induction through Sod2 transcriptional control. Importantly, the activation of this mechanism by either PGC-1α overexpression or NCoR1 knockdown attenuates mitochondrial ROS levels and prevents cell death caused by lipid overload in skeletal muscle cells. The opposing actions of coactivators and corepressors, therefore, exert a commanding role over cellular antioxidant capacity.
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Affiliation(s)
- Tanes I Lima
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, USP, Ribeirão Preto, SP, Brazil; Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil; Obesity and Comorbidities Research Center - OCRC - IB - UNICAMP, Campinas, Brazil
| | - Dimitrius Santiago P S F Guimarães
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil; Obesity and Comorbidities Research Center - OCRC - IB - UNICAMP, Campinas, Brazil
| | - André G Oliveira
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil; Obesity and Comorbidities Research Center - OCRC - IB - UNICAMP, Campinas, Brazil
| | - Hygor Araujo
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil; Obesity and Comorbidities Research Center - OCRC - IB - UNICAMP, Campinas, Brazil
| | - Carlos H G Sponton
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil; Obesity and Comorbidities Research Center - OCRC - IB - UNICAMP, Campinas, Brazil
| | | | - Ângela Saito
- National Laboratory of Biosciences, Campinas, Brazil
| | | | | | | | - Andrea Calixto
- Centro de Genómica y Bioinformática, Facultad de Ciencias, Universidad Mayor, Santiago de Chile, Chile
| | - Silas Pinto
- Laboratory of Aging Biology (LaBE), Department of Biochemistry and Tissue Biology, Program in Genetics and Molecular Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Marcelo A Mori
- Laboratory of Aging Biology (LaBE), Department of Biochemistry and Tissue Biology, Program in Genetics and Molecular Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Joey Orofino
- Biochemistry Department, Boston University School of Medicine, Boston, MA, USA
| | - Valentina Perissi
- Biochemistry Department, Boston University School of Medicine, Boston, MA, USA
| | - Adrienne Mottis
- Laboratory of Integrative Systems Physiology (LISP), École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Johan Auwerx
- Laboratory of Integrative Systems Physiology (LISP), École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Leonardo Reis Silveira
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, USP, Ribeirão Preto, SP, Brazil; Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil; Obesity and Comorbidities Research Center - OCRC - IB - UNICAMP, Campinas, Brazil.
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7
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Dias MM, Adamoski D, Dos Reis LM, Ascenção CFR, de Oliveira KRS, Mafra ACP, da Silva Bastos AC, Quintero M, de G Cassago C, Ferreira IM, Fidelis CHV, Rocco SA, Bajgelman MC, Stine Z, Berindan-Neagoe I, Calin GA, Ambrosio ALB, Dias SMG. GLS2 is protumorigenic in breast cancers. Oncogene 2019; 39:690-702. [PMID: 31541193 DOI: 10.1038/s41388-019-1007-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 08/21/2019] [Accepted: 08/26/2019] [Indexed: 12/16/2022]
Abstract
Many types of cancers have a well-established dependence on glutamine metabolism to support survival and growth, a process linked to glutaminase 1 (GLS) isoforms. Conversely, GLS2 variants often have tumor-suppressing activity. Triple-negative (TN) breast cancer (testing negative for estrogen, progesterone, and Her2 receptors) has elevated GLS protein levels and reportedly depends on exogenous glutamine and GLS activity for survival. Despite having high GLS levels, we verified that several breast cancer cells (including TN cells) express endogenous GLS2, defying its role as a bona fide tumor suppressor. Moreover, ectopic GLS2 expression rescued cell proliferation, TCA anaplerosis, redox balance, and mitochondrial function after GLS inhibition by the small molecule currently in clinical trials CB-839 or GLS knockdown of GLS-dependent cell lines. In several cell lines, GLS2 knockdown decreased cell proliferation and glutamine-linked metabolic phenotypes. Strikingly, long-term treatment of TN cells with another GLS-exclusive inhibitor bis-2'-(5-phenylacetamide-1,3,4-thiadiazol-2-yl)ethyl sulfide (BPTES) selected for a drug-resistant population with increased endogenous GLS2 and restored proliferative capacity. GLS2 was linked to enhanced in vitro cell migration and invasion, mesenchymal markers (through the ERK-ZEB1-vimentin axis under certain conditions) and in vivo lung metastasis. Of concern, GLS2 amplification or overexpression is linked to an overall, disease-free and distant metastasis-free worse survival prognosis in breast cancer. Altogether, these data establish an unforeseen role of GLS2 in sustaining tumor proliferation and underlying metastasis in breast cancer and provide an initial framework for exploring GLS2 as a novel therapeutic target.
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Affiliation(s)
- Marilia M Dias
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, 13083-970, Brazil.,Graduate Program in Genetics and Molecular Biology, Institute of Biology University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Douglas Adamoski
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, 13083-970, Brazil.,Graduate Program in Genetics and Molecular Biology, Institute of Biology University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Larissa M Dos Reis
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, 13083-970, Brazil.,Graduate Program in Genetics and Molecular Biology, Institute of Biology University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Carolline F R Ascenção
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, 13083-970, Brazil.,Graduate Program in Genetics and Molecular Biology, Institute of Biology University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Krishina R S de Oliveira
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, 13083-970, Brazil.,Graduate Program in Genetics and Molecular Biology, Institute of Biology University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Ana Carolina Paschoalini Mafra
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, 13083-970, Brazil.,Graduate Program in Genetics and Molecular Biology, Institute of Biology University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Alliny Cristiny da Silva Bastos
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, 13083-970, Brazil.,Graduate Program in Genetics and Molecular Biology, Institute of Biology University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Melissa Quintero
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, 13083-970, Brazil
| | - Carolina de G Cassago
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, 13083-970, Brazil
| | - Igor M Ferreira
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, 13083-970, Brazil
| | - Carlos H V Fidelis
- ThoMSon Mass Spectrometry Laboratory, Institute of Chemistry, University of Campinas, Campinas, Sao Paulo, 13083-970, Brazil
| | - Silvana A Rocco
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, 13083-970, Brazil
| | - Marcio Chaim Bajgelman
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, 13083-970, Brazil
| | - Zachary Stine
- The Wistar Institute, 3601 Spruce Street, Philadelphia, PA, 19104, USA
| | - Ioana Berindan-Neagoe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, University of Medicine and Pharmacy "Iuliu-Hatieganu", 400337, Cluj-Napoca, Romania.,MedFuture Research Center for Advanced Medicine, University of Medicine and Pharmacy "Iuliu-Hatieganu", 400349, Cluj-Napoca, Romania.,Department of Functional Genomics and Experimental Pathology, The Oncology Institute "Prof. Dr. Ion Chiricuţă", 400015, Cluj-Napoca, Romania
| | - George A Calin
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd. Unit 1950, Houston, TX, 77030, USA.,Center for RNA Inference and Non-Coding RNAs, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd. Unit 1950, Houston, TX, 77030, USA
| | - Andre Luis Berteli Ambrosio
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, 13083-970, Brazil. .,Sao Carlos Institute of Physics (IFSC), University of Sao Paulo (USP), Sao Carlos, Sao Paulo, 13563-120, Brazil.
| | - Sandra Martha Gomes Dias
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, 13083-970, Brazil.
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8
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Ribeiro Filho HV, Bernardi Videira N, Bridi AV, Tittanegro TH, Helena Batista FA, de Carvalho Pereira JG, de Oliveira PSL, Bajgelman MC, Le Maire A, Figueira ACM. Screening for PPAR Non-Agonist Ligands Followed by Characterization of a Hit, AM-879, with Additional No-Adipogenic and cdk5-Mediated Phosphorylation Inhibition Properties. Front Endocrinol (Lausanne) 2018; 9:11. [PMID: 29449830 PMCID: PMC5799700 DOI: 10.3389/fendo.2018.00011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Accepted: 01/11/2018] [Indexed: 11/13/2022] Open
Abstract
Peroxisome proliferator-activated receptor gamma (PPARγ) is a member of a nuclear receptor superfamily and acts as a ligand-dependent transcription factor, playing key roles in maintenance of adipose tissue and in regulation of glucose and lipid homeostasis. This receptor is the target of thiazolidinediones, a class of antidiabetic drugs, which improve insulin sensitization and regulate glycemia in type 2 diabetes. Despite the beneficial effects of drugs, such as rosiglitazone and pioglitazone, their use is associated with several side effects, including weight gain, heart failure, and liver disease, since these drugs induce full activation of the receptor. By contrast, a promising activation-independent mechanism that involves the inhibition of cyclin-dependent kinase 5 (CDK5)-mediated PPARγ phosphorylation has been related to the insulin-sensitizing effects induced by these drugs. Thus, we aimed to identify novel PPARγ ligands that do not possess agonist properties by conducting a mini-trial with 80 compounds using the sequential steps of thermal shift assay, 8-anilino-1-naphthalenesulfonic acid fluorescence quenching, and a cell-based transactivation assay. We identified two non-agonist PPARγ ligands, AM-879 and P11, and one partial-agonist, R32. Using fluorescence anisotropy, we show that AM-879 does not dissociate the NCOR corepressor in vitro, and it has only a small effect on TRAP coactivator recruitment. In cells, AM-879 could not induce adipocyte differentiation or positively regulate the expression of genes associated with adipogenesis. In addition, AM-879 inhibited CDK5-mediated phosphorylation of PPARγ in vitro. Taken together, these findings supported an interaction between AM-879 and PPARγ; this interaction was identified by the analysis of the crystal structure of the PPARγ:AM-879 complex and evidenced by AM-879's mechanism of action as a putative PPARγ non-agonist with antidiabetic properties. Moreover, we present an optimized assay pipeline capable of detecting ligands that physically bind to PPARγ but do not cause its activation as a new strategy to identify ligands for this nuclear receptor.
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Affiliation(s)
- Helder Veras Ribeiro Filho
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
- Post Graduation Program in Biosciences and Technology of Bioactive Products, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Natália Bernardi Videira
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
- Post Graduation Program in Biosciences and Technology of Bioactive Products, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Aline Villanova Bridi
- Post Graduation Program in Biosciences and Technology of Bioactive Products, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Thais Helena Tittanegro
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
- Post Graduation Program in Biosciences and Technology of Bioactive Products, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | | | - José Geraldo de Carvalho Pereira
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Paulo Sérgio Lopes de Oliveira
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Marcio Chaim Bajgelman
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Albane Le Maire
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
- Centre de Biochimie Structurale CNRS, Université de Montpellier, Montpellier, France
| | - Ana Carolina Migliorini Figueira
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
- Post Graduation Program in Biosciences and Technology of Bioactive Products, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
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Zuccari D, Lacerda JZ, Ferreira LC, Lopes BC, Aristizábal-Pachón AF, Bajgelman MC. Abstract 1477: Melatonin regulates the tumor suppressor miR-148a-3p involved in angiogenesis and metastasis of breast cancer. Cancer Res 2017. [DOI: 10.1158/1538-7445.am2017-1477] [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: 11/16/2022]
Abstract
Abstract
Women with breast cancer has the tumor progression and angiogenesis-induced metastasis as the main cause of death. MicroRNAs (miRNAs) are small noncoding mRNA molecules that play an important role in gene regulation and once deregulated, these molecules may be involved with the progression of different human tumor types, including breast cancer. These miRNAs play an oncostatic role on tumor suppressor genes and regulate the process of angiogenesis, tumor growth and metastasis. So as new possible adjuvant treatment against breast cancer our group have shown melatonin, that is a hormone secreted by the pineal gland, by exhibiting several anti-tumor and antiangiogenic effects. Therefore, the aim of this study was to evaluate the potential therapeutic of melatonin on miRNAs regulation to verify breast cancer progression and potent tumor suppressor miR-148a-3p. In silico analysis was performed for selection of miRNAs involved in breast cancer. The MDA-MB-231 breast cancer cell line (metastatic negative estrogen receptor) was grown and separated in two different experimental conditions maintained for 24 hours: control group and melatonin-treated group (concentration of 1 mM). After this period the extraction of total RNA was performed (Qiagen®) and the total concentration of miRNAs of each sample was determined (NanoDrop Spectrophotometer 2000C - Thermo Scientific®). Differential expressions of these miRNAs was evaluate using miScript miRNA PCR-Array (Qiagen®) containing 84 miRNAs associated with breast cancer. The overexpression of miR-148a-3p in MDA-MB-231 cells was performed by bacterial cloning vector and the relative quantification of gene expression of their target IGF-1R and VEGF by real-time PCR. Moreover, the quantification of protein expression was performed by immunocytochemistry of IGF-1R and VEGF. Lastly, the migration and invasion cell assays were carried out to assess the potential capacity of these cells to undergo metastasis. The analysis of miRNAs MDA-MB-231 cell line by PCR-array showed 24 upregulated miRNAs and 8 miRNAs downregulated after the treatment with melatonin. Relative quantification shows that the melatonin treatment increases the gene expression of miR-148a-3p and decreases the gene and protein levels of IGF-1R and VEGF. The capability of migration and invasion of the breast cancer cells decreased after treatment with melatonin and overexpression of miR-148a-3p. Our results confirm the action of melatonin on the miR-148a-3p regulation known being involved in the progression of breast cancer. Thus the establishment of this therapeutic protocols can control these cellular events essential for the prognosis of patients with breast cancer.
Citation Format: Debora Zuccari, Jéssica Zani Lacerda, Lívia Carvalho Ferreira, Beatriz Camargo Lopes, Andrés Felipe Aristizábal-Pachón, Marcio Chaim Bajgelman. Melatonin regulates the tumor suppressor miR-148a-3p involved in angiogenesis and metastasis of breast cancer [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 1477. doi:10.1158/1538-7445.AM2017-1477
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Affiliation(s)
- Debora Zuccari
- 1Faculdade de Medicina de São José do Rio Preto - FAMERP, São José do Rio Preto, Brazil
| | | | | | - Beatriz Camargo Lopes
- 3Laboratorio de Investigação Molecular do Cancer - LIMC/FAMERP, São José do Rio Preto, Brazil
| | | | - Marcio Chaim Bajgelman
- 5Laboratorio Nacional de Biociencias/Centro Nacional de Pesquisa em Energia e Materiais - CNPEM, Campinas, Brazil
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Leonel C, Borin TF, de Carvalho Ferreira L, Moschetta MG, Bajgelman MC, Viloria-Petit AM, de Campos Zuccari DAP. Inhibition of Epithelial-Mesenchymal Transition and Metastasis by Combined TGFbeta Knockdown and Metformin Treatment in a Canine Mammary Cancer Xenograft Model. J Mammary Gland Biol Neoplasia 2017; 22:27-41. [PMID: 28078601 DOI: 10.1007/s10911-016-9370-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 01/22/2016] [Accepted: 12/19/2016] [Indexed: 12/18/2022] Open
Abstract
Epithelial mesenchymal transition (EMT) is a process by which epithelial cells acquire mesenchymal properties, generating metastases. Transforming growth factor beta (TGF-β) is associated with this malignancy by having the ability to induce EMT. Metformin, has been shown to inhibit EMT in breast cancer cells. Based on this evidence we hypothesize that treatment with metformin and the silencing of TGF-β, inhibits the EMT in cancer cells. Canine metastatic mammary tumor cell line CF41 was stably transduced with a shRNA-lentivirus, reducing expression level of TGF-β1. This was combined with metformin treatment, to look at effects on cell migration and the expression of EMT markers. For in vivo study, unmodified or TGF-β1sh cells were injected in the inguinal region of nude athymic female mice followed by metformin treatment. The mice's lungs were collected and metastatic nodules were subsequently assessed for EMT markers expression. The migration rate was lower in TGF-β1sh cells and when combined with metformin treatment. Metformin treatment reduced N-cadherin and increased E-cadherin expression in both CF41 and TGF-β1sh cells. Was demonstrated that metformin treatment reduced the number of lung metastases in animals bearing TGF-β1sh tumors. This paralleled a decreased N-cadherin and vimentin expression, and increased E-cadherin and claudin-7 expression in lung metastases. This study confirms the benefits of TGF-β1 silencing in addition to metformin as potential therapeutic agents for breast cancer patients, by blocking EMT process. To the best of our knowledge, we are the first to report metformin treatment in cells with TGF-β1 silencing and their effect on EMT.
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Affiliation(s)
- Camila Leonel
- Universidade Estadual Paulista "Julio de Mesquita Filho" (UNESP/IBILCE), PostGraduate Program in Genetics, Cristovao Colombo Street, 2265, Jardim Nazareth, Sao Jose do Rio Preto, SP, Brazil
- Faculdade de Medicina de Sao Jose do Rio Preto (FAMERP), Laboratory of Molecular Investigation of Cancer (LIMC), Brigadeiro Faria Lima Avenue, 5416, Vila São Pedro, Sao Jose do Rio Preto, SP, Brazil
| | - Thaiz Ferraz Borin
- Faculdade de Medicina de Sao Jose do Rio Preto (FAMERP), Laboratory of Molecular Investigation of Cancer (LIMC), Brigadeiro Faria Lima Avenue, 5416, Vila São Pedro, Sao Jose do Rio Preto, SP, Brazil
- Faculdade de Medicina de Sao Jose do Rio Preto (FAMERP), PostGraduate Program in Health Sciences, Brigadeiro Faria Lima Avenue, 5416, Vila São Pedro, Sao Jose do Rio Preto, SP, Brazil
| | - Lívia de Carvalho Ferreira
- Universidade Estadual Paulista "Julio de Mesquita Filho" (UNESP/IBILCE), PostGraduate Program in Genetics, Cristovao Colombo Street, 2265, Jardim Nazareth, Sao Jose do Rio Preto, SP, Brazil
- Faculdade de Medicina de Sao Jose do Rio Preto (FAMERP), Laboratory of Molecular Investigation of Cancer (LIMC), Brigadeiro Faria Lima Avenue, 5416, Vila São Pedro, Sao Jose do Rio Preto, SP, Brazil
| | - Marina Gobbe Moschetta
- Faculdade de Medicina de Sao Jose do Rio Preto (FAMERP), Laboratory of Molecular Investigation of Cancer (LIMC), Brigadeiro Faria Lima Avenue, 5416, Vila São Pedro, Sao Jose do Rio Preto, SP, Brazil
- Faculdade de Medicina de Sao Jose do Rio Preto (FAMERP), PostGraduate Program in Health Sciences, Brigadeiro Faria Lima Avenue, 5416, Vila São Pedro, Sao Jose do Rio Preto, SP, Brazil
| | - Marcio Chaim Bajgelman
- National Center for Research in Energy and Materials - CNPEM, Brazilian Biosciences National Laboratory - LNBio, Giuseppe Máximo Scolfaro Street, Campinas, SP, 10000, Brazil
| | - Alicia M Viloria-Petit
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, 50 Stone Rd E, Guelph, ON, N1G 2W1, Canada
| | - Debora Aparecida Pires de Campos Zuccari
- Universidade Estadual Paulista "Julio de Mesquita Filho" (UNESP/IBILCE), PostGraduate Program in Genetics, Cristovao Colombo Street, 2265, Jardim Nazareth, Sao Jose do Rio Preto, SP, Brazil.
- Faculdade de Medicina de Sao Jose do Rio Preto (FAMERP), Laboratory of Molecular Investigation of Cancer (LIMC), Brigadeiro Faria Lima Avenue, 5416, Vila São Pedro, Sao Jose do Rio Preto, SP, Brazil.
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Xavier-Neto J, Carvalho M, Pascoalino BDS, Cardoso AC, Costa ÂMS, Pereira AHM, Santos LN, Saito Â, Marques RE, Smetana JHC, Consonni SR, Bandeira C, Costa VV, Bajgelman MC, de Oliveira PSL, Cordeiro MT, Gonzales Gil LHV, Pauletti BA, Granato DC, Paes Leme AF, Freitas-Junior L, Holanda de Freitas CBM, Teixeira MM, Bevilacqua E, Franchini K. Hydrocephalus and arthrogryposis in an immunocompetent mouse model of ZIKA teratogeny: A developmental study. PLoS Negl Trop Dis 2017; 11:e0005363. [PMID: 28231241 PMCID: PMC5322881 DOI: 10.1371/journal.pntd.0005363] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 01/27/2017] [Indexed: 11/18/2022] Open
Abstract
The teratogenic mechanisms triggered by ZIKV are still obscure due to the lack of a suitable animal model. Here we present a mouse model of developmental disruption induced by ZIKV hematogenic infection. The model utilizes immunocompetent animals from wild-type FVB/NJ and C57BL/6J strains, providing a better analogy to the human condition than approaches involving immunodeficient, genetically modified animals, or direct ZIKV injection into the brain. When injected via the jugular vein into the blood of pregnant females harboring conceptuses from early gastrulation to organogenesis stages, akin to the human second and fifth week of pregnancy, ZIKV infects maternal tissues, placentas and embryos/fetuses. Early exposure to ZIKV at developmental day 5 (second week in humans) produced complex manifestations of anterior and posterior dysraphia and hydrocephalus, as well as severe malformations and delayed development in 10.5 days post-coitum (dpc) embryos. Exposure to the virus at 7.5-9.5 dpc induces intra-amniotic hemorrhage, widespread edema, and vascular rarefaction, often prominent in the cephalic region. At these stages, most affected embryos/fetuses displayed gross malformations and/or intrauterine growth restriction (IUGR), rather than isolated microcephaly. Disrupted conceptuses failed to achieve normal developmental landmarks and died in utero. Importantly, this is the only model so far to display dysraphia and hydrocephalus, the harbinger of microcephaly in humans, as well as arthrogryposis, a set of abnormal joint postures observed in the human setting. Late exposure to ZIKV at 12.5 dpc failed to produce noticeable malformations. We have thus characterized a developmental window of opportunity for ZIKV-induced teratogenesis encompassing early gastrulation, neurulation and early organogenesis stages. This should not, however, be interpreted as evidence for any safe developmental windows for ZIKV exposure. Late developmental abnormalities correlated with damage to the placenta, particularly to the labyrinthine layer, suggesting that circulatory changes are integral to the altered phenotypes.
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Affiliation(s)
- Jose Xavier-Neto
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
- * E-mail: (JXN); (KF)
| | - Murilo Carvalho
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
| | - Bruno dos Santos Pascoalino
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
| | - Alisson Campos Cardoso
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
| | - Ângela Maria Sousa Costa
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
| | - Ana Helena Macedo Pereira
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
| | - Luana Nunes Santos
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Ângela Saito
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
| | - Rafael Elias Marques
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
| | - Juliana Helena Costa Smetana
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
| | - Silvio Roberto Consonni
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
| | - Carla Bandeira
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Vivian Vasconcelos Costa
- Laboratório de Imunofarmacologia, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, MG, Brazil
| | - Marcio Chaim Bajgelman
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
| | - Paulo Sérgio Lopes de Oliveira
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
| | - Marli Tenorio Cordeiro
- CPqAM-Fiocruz. Federal University of Pernambuco, Av. Professor Moraes Rego s/n, Cidade Universitária, Recife, PE, Brazil
| | - Laura Helena Vega Gonzales Gil
- CPqAM-Fiocruz. Federal University of Pernambuco, Av. Professor Moraes Rego s/n, Cidade Universitária, Recife, PE, Brazil
| | - Bianca Alves Pauletti
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
| | - Daniela Campos Granato
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
| | - Adriana Franco Paes Leme
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
| | - Lucio Freitas-Junior
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
| | | | - Mauro Martins Teixeira
- Laboratório de Imunofarmacologia, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, MG, Brazil
| | - Estela Bevilacqua
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Kleber Franchini
- Brazilian Biosciences National Laboratory, LNBio, Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia de Campinas, Campinas, SP, Brazil
- * E-mail: (JXN); (KF)
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Inácio RF, Zanon RG, Castro MVD, Souza HMD, Bajgelman MC, Verinaud L, Oliveira ALRD. Astroglioma conditioned medium increases synaptic elimination and correlates with major histocompatibility complex of class I (MHC I) upregulation in PC12Cells. Neurosci Lett 2016; 634:160-167. [PMID: 27751786 DOI: 10.1016/j.neulet.2016.10.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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: 08/04/2016] [Revised: 09/13/2016] [Accepted: 10/11/2016] [Indexed: 11/24/2022]
Abstract
Astrocytes are multifunctional glial cells that actively participate in synaptic plasticity in health and disease. Little is known about molecular interactions between neurons and glial cells that result in synaptic stability or elimination. In this sense, the main histocompatibility complex of class I (MHC I) has been shown to play a role in the synaptic plasticity process during development and after lesion of the CNS. MHC I levels in neurons appear to be influenced by astrocyte secreted molecules, which may generate endoplasmic reticulum stress. In vitro studies are of relevance since cell contact can be avoided by the use of astrocyte conditioned medium, allowing investigation of soluble factors isolated from cell direct interaction. Thus, we investigated synaptic preservation by synaptophysin and MHC I immunolabeling in PC12 neuron-like cells exposed to NG97 astroglioma conditioned medium (CM). For that, PC12 cells were cultured and differentiated into neuron-like profile with nerve growth factor. MHC I was induced with interferon beta treatment (IFN), and the effects were compared to PC12 exposure to NG97 CM. Overall, the results show that NG97 CM increases, more than IFN alone, the expression of MHC I, negatively influencing synaptic stability. This indicates that glial soluble factors influence synapse elimination, compatible to in vivo synaptic stripping process, in a cell contact independent fashion. In turn, our results indicate that deleterious effects of astroglioma are not only restricted to rapid growth ratio of the tumor, but also correlated with secretion of stress-related molecules that directly affect neuronal networks.
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Affiliation(s)
- Rodrigo Fabrizzio Inácio
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas, Campinas, São Paulo, Brazil
| | - Renata Gacielle Zanon
- Department of Human Anatomy, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Mateus Vidigal de Castro
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas, Campinas, São Paulo, Brazil
| | - Henrique Marques de Souza
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, São Paulo, Brazil
| | - Marcio Chaim Bajgelman
- Brazilian National Laboratory for Biosciences, Research Center in Energy and Materials, Campinas, São Paulo, Brazil
| | - Liana Verinaud
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas, Campinas, São Paulo, Brazil
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de Souza E Silva JM, Hanchuk TDM, Santos MI, Kobarg J, Bajgelman MC, Cardoso MB. Viral Inhibition Mechanism Mediated by Surface-Modified Silica Nanoparticles. ACS Appl Mater Interfaces 2016; 8:16564-72. [PMID: 27284685 DOI: 10.1021/acsami.6b03342] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Vaccines and therapies are not available for several diseases caused by viruses, thus viral infections result in morbidity and mortality of millions of people every year. Nanoparticles are considered to be potentially effective in inhibiting viral infections. However, critical issues related to their use include their toxicity and their mechanisms of antiviral action, which are not yet completely elucidated. To tackle these problems, we synthesized silica nanoparticles with distinct surface properties and evaluated their biocompatibility and antiviral efficacy. We show that nanoparticles exhibited no significant toxicity to mammalian cells, while declines up to 50% in the viral transduction ability of two distinct recombinant viruses were observed. We designed experiments to address the mechanism of antiviral action of our nanoparticles and found that their hydrophobic/hydrophilic characters play a crucial role. Our results reveal that the use of functionalized silica particles is a promising approach for controlling viral infection and offer promising strategies for viral control.
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Affiliation(s)
- Juliana Martins de Souza E Silva
- Brazilian Synchrotron Light Laboratory, National Center for Research in Energy and Materials , 13083-970, Campinas, Brazil
- Lehrstuhl für Biomedizinische Physik, Physik-Department & Institut für Medizintechnik, Technische Universität München , 85748, Garching, Germany
| | - Talita Diniz Melo Hanchuk
- Brazilian Biosciences National Laboratory, National Center for Research in Energy and Materials , 13083-970, Campinas, Brazil
- Faculty of Pharmaceutical Sciences and Institute of Biology/Department of Biochemistry and Tissue Biology, University of Campinas , 13083-862, Campinas, Brazil
| | - Murilo Izidoro Santos
- Brazilian Synchrotron Light Laboratory, National Center for Research in Energy and Materials , 13083-970, Campinas, Brazil
| | - Jörg Kobarg
- Brazilian Biosciences National Laboratory, National Center for Research in Energy and Materials , 13083-970, Campinas, Brazil
- Faculty of Pharmaceutical Sciences and Institute of Biology/Department of Biochemistry and Tissue Biology, University of Campinas , 13083-862, Campinas, Brazil
| | - Marcio Chaim Bajgelman
- Brazilian Biosciences National Laboratory, National Center for Research in Energy and Materials , 13083-970, Campinas, Brazil
| | - Mateus Borba Cardoso
- Brazilian Synchrotron Light Laboratory, National Center for Research in Energy and Materials , 13083-970, Campinas, Brazil
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