1
|
Segatto NV, Simões LD, Bender CB, Sousa FS, Oliveira TL, Paschoal JDF, Pacheco BS, Lopes I, Seixas FK, Qazi A, Thomas FM, Chaki S, Robertson N, Newsom J, Patel S, Rund LA, Jordan LR, Bolt C, Schachtschneider KM, Schook LB, Collares TV. Oncopig bladder cancer cells recapitulate human bladder cancer treatment responses in vitro. Front Oncol 2024; 14:1323422. [PMID: 38469237 PMCID: PMC10926022 DOI: 10.3389/fonc.2024.1323422] [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: 10/19/2023] [Accepted: 01/05/2024] [Indexed: 03/13/2024] Open
Abstract
Introduction Bladder cancer is a common neoplasia of the urinary tract that holds the highest cost of lifelong treatment per patient, highlighting the need for a continuous search for new therapies for the disease. Current bladder cancer models are either imperfect in their ability to translate results to clinical practice (mouse models), or rare and not inducible (canine models). Swine models are an attractive alternative to model the disease due to their similarities with humans on several levels. The Oncopig Cancer Model has been shown to develop tumors that closely resemble human tumors. However, urothelial carcinoma has not yet been studied in this platform. Methods We aimed to develop novel Oncopig bladder cancer cell line (BCCL) and investigate whether these urothelial swine cells mimic human bladder cancer cell line (5637 and T24) treatment-responses to cisplatin, doxorubicin, and gemcitabine in vitro. Results Results demonstrated consistent treatment responses between Oncopig and human cells in most concentrations tested (p>0.05). Overall, Oncopig cells were more predictive of T24 than 5637 cell therapeutic responses. Microarray analysis also demonstrated similar alterations in expression of apoptotic (GADD45B and TP53INP1) and cytoskeleton-related genes (ZMYM6 and RND1) following gemcitabine exposure between 5637 (human) and Oncopig BCCL cells, indicating apoptosis may be triggered through similar signaling pathways. Molecular docking results indicated that swine and humans had similar Dg values between the chemotherapeutics and their target proteins. Discussion Taken together, these results suggest the Oncopig could be an attractive animal to model urothelial carcinoma due to similarities in in vitro therapeutic responses compared to human cells.
Collapse
Affiliation(s)
- Natália V. Segatto
- Technology Development Center, Laboratory of Cancer Biotechnology, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Lucas D. Simões
- Technology Development Center, Laboratory of Cancer Biotechnology, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Camila B. Bender
- Technology Development Center, Laboratory of Cancer Biotechnology, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Fernanda S. Sousa
- Technology Development Center, Laboratory of Cancer Biotechnology, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Thais L. Oliveira
- Technology Development Center, Laboratory of Cancer Biotechnology, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Júlia D. F. Paschoal
- Technology Development Center, Laboratory of Cancer Biotechnology, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Bruna S. Pacheco
- Technology Development Center, Laboratory of Cancer Biotechnology, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Isadora Lopes
- Technology Development Center, Laboratory of Cancer Biotechnology, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Fabiana K. Seixas
- Technology Development Center, Laboratory of Cancer Biotechnology, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Aisha Qazi
- Department of Animal Sciences, University of Illinois, Urbana, IL, United States
| | - Faith M. Thomas
- Department of Animal Sciences, University of Illinois, Urbana, IL, United States
| | - Sulalita Chaki
- Department of Animal Sciences, University of Illinois, Urbana, IL, United States
| | | | | | - Shovik Patel
- Department of Animal Sciences, University of Illinois, Urbana, IL, United States
| | - Laurie A. Rund
- Department of Animal Sciences, University of Illinois, Urbana, IL, United States
| | - Luke R. Jordan
- Department of Animal Sciences, University of Illinois, Urbana, IL, United States
- Sus Clinicals Inc., Chicago, IL, United States
| | - Courtni Bolt
- Department of Animal Sciences, University of Illinois, Urbana, IL, United States
- Sus Clinicals Inc., Chicago, IL, United States
| | | | - Lawrence B. Schook
- Department of Animal Sciences, University of Illinois, Urbana, IL, United States
- Sus Clinicals Inc., Chicago, IL, United States
| | - Tiago V. Collares
- Technology Development Center, Laboratory of Cancer Biotechnology, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| |
Collapse
|
2
|
Birmann PT, Casaril AM, Pesarico AP, Rodrigues RR, Conceição FR, Sousa FSS, Collares T, Seixas FK, Savegnago L. Komagataella pastoris KM71H Mitigates Depressive-Like Phenotype, Preserving Intestinal Barrier Integrity and Modulating the Gut Microbiota in Mice. Mol Neurobiol 2023; 60:4017-4029. [PMID: 37016046 DOI: 10.1007/s12035-023-03326-7] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 03/20/2023] [Indexed: 04/06/2023]
Abstract
The role of intestinal microbiota in the genesis of mental health has received considerable attention in recent years, given that probiotics are considered promising therapeutic agents against major depressive disorder. Komagataella pastoris KM71H is a yeast with probiotic properties and antidepressant-like effects in animal models of depression. Hence, we evaluated the antidepressant-like effects of K. pastoris KM71H in a model of antibiotic-induced intestinal dysbiosis in male Swiss mice. The mice received clindamycin (200 μg, intraperitoneal) and, after 24 h, were treated with K. pastoris KM71H at a dose of 8 log CFU/animal by intragastric administration (ig) or PBS (vehicle, ig) for 14 consecutive days. Afterward, the animals were subjected to behavioral tests and biochemical analyses. Our results showed that K. pastoris KM71H administration decreased the immobility time in the tail suspension test and increased grooming activity duration in the splash test in antibiotic-treated mice, thereby characterizing its antidepressant-like effect. We observed that these effects of K. pastoris KM71H were accompanied by the modulation of the intestinal microbiota, preservation of intestinal barrier integrity, and restoration of the mRNA levels of occludin, zonula occludens-1, zonula occludens-2, and toll-like receptor-4 in the small intestine, and interleukin-1β in the hippocampi of mice. Our findings provide solid evidence to support the development of K. pastoris KM71H as a new probiotic with antidepressant-like effects.
Collapse
Affiliation(s)
- Paloma T Birmann
- Neurobiotechnology Research Group, Graduate Program in Biotechnology, Technologic Development Center, Federal University of Pelotas, (UFPel), Pelotas, RS, CEP 96010-900, Brazil
| | - Angela M Casaril
- Neurobiotechnology Research Group, Graduate Program in Biotechnology, Technologic Development Center, Federal University of Pelotas, (UFPel), Pelotas, RS, CEP 96010-900, Brazil
| | - Ana Paula Pesarico
- Neurobiotechnology Research Group, Graduate Program in Biotechnology, Technologic Development Center, Federal University of Pelotas, (UFPel), Pelotas, RS, CEP 96010-900, Brazil
| | - Rafael R Rodrigues
- Applied Immunology Laboratory, Graduate Program in Biotechnology, Technological Development Center, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Fabricio R Conceição
- Applied Immunology Laboratory, Graduate Program in Biotechnology, Technological Development Center, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Fernanda Severo Sabedra Sousa
- Molecular and Cellular Oncology Research Group and Functional Genomics Laboratory, Graduate Program in Biotechnology, Technological Development Center, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Tiago Collares
- Molecular and Cellular Oncology Research Group and Functional Genomics Laboratory, Graduate Program in Biotechnology, Technological Development Center, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Fabiana K Seixas
- Molecular and Cellular Oncology Research Group and Functional Genomics Laboratory, Graduate Program in Biotechnology, Technological Development Center, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Lucielli Savegnago
- Neurobiotechnology Research Group, Graduate Program in Biotechnology, Technologic Development Center, Federal University of Pelotas, (UFPel), Pelotas, RS, CEP 96010-900, Brazil.
| |
Collapse
|
3
|
Smaniotto TÂ, Casaril AM, de Andrade Lourenço D, Sousa FS, Seixas FK, Collares T, Woloski R, da Silva Pinto L, Alves D, Savegnago L. Intranasal administration of interleukin-4 ameliorates depression-like behavior and biochemical alterations in mouse submitted to the chronic unpredictable mild stress: modulation of neuroinflammation and oxidative stress. Psychopharmacology (Berl) 2023; 240:935-950. [PMID: 36856802 DOI: 10.1007/s00213-023-06336-4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 02/03/2023] [Indexed: 03/02/2023]
Abstract
Physical and psychological stress modulates the hypothalamic pituitary adrenal (HPA) axis, and the redox and inflammatory systems. Impairments in these systems have been extensively reported in major depression (MD) patients. Therefore, our study aimed to investigate the effects of the intranasal administration of interleukin-4 (IL-4) in mice with depressive-like behavior induced by chronic unpredictable mild stress (CUMS) for 28 days. On the 28th day, mice received IL-4 intranasally (1 ng/mouse) or vehicle (sterile saline), and after 30 min, they were submitted to behavioral tests or euthanasia for blood collection and removal of the adrenal glands, axillary lymph nodes, spleen, thymus, prefrontal cortices (PFC), and hippocampi (HC). A single administration of IL-4 reversed CUMS-induced depression-like behavior in the tail suspension test and splash test, without evoking locomotor changes. IL-4 administration reduced the plasma levels of corticosterone and the increased weight of suprarenal glands in stressed mice. Moreover, IL-4 restored the expression of nuclear factor erythroid 2-related factor 2 (NRF2), nuclear factor kappa B (NF-kB), interleukin 1 beta (IL-1β), IL-4, brain derived neurotrophic factor (BDNF), and indoleamine 2,3-dioxygenase (IDO) in the PFC and HC and modulated oxidative stress markers in these brain structures in stressed mice. Our results showed for the first time the antidepressant-like effect of IL-4 through the modulation of neuroinflammation and oxidative stress. The potential effect of IL-4 administered intranasally arises as an innovative strategy for MD treatment.
Collapse
Affiliation(s)
- Thiago Ângelo Smaniotto
- Technology Development Center, Division of Biotechnology, Neurobiotechnology Research Group, Federal University of Pelotas, Pelotas, RS, 96010900, Brazil
| | - Angela Maria Casaril
- Technology Development Center, Division of Biotechnology, Neurobiotechnology Research Group, Federal University of Pelotas, Pelotas, RS, 96010900, Brazil
| | - Darling de Andrade Lourenço
- Technology Development Center, Division of Biotechnology, Neurobiotechnology Research Group, Federal University of Pelotas, Pelotas, RS, 96010900, Brazil
| | - Fernanda S Sousa
- Technology Development Center, Division of Biotechnology, Cancer Biotechnology Laboratory, Federal University of Pelotas, Pelotas, RS, 96010900, Brazil
| | - Fabiana K Seixas
- Technology Development Center, Division of Biotechnology, Cancer Biotechnology Laboratory, Federal University of Pelotas, Pelotas, RS, 96010900, Brazil
| | - Tiago Collares
- Technology Development Center, Division of Biotechnology, Cancer Biotechnology Laboratory, Federal University of Pelotas, Pelotas, RS, 96010900, Brazil
| | - Rafael Woloski
- Technology Development Center, Division of Biotechnology, Bioinformatics and Proteomics Laboratory, Federal University of Pelotas, Pelotas, RS, 96010900, Brazil
| | - Luciano da Silva Pinto
- Technology Development Center, Division of Biotechnology, Bioinformatics and Proteomics Laboratory, Federal University of Pelotas, Pelotas, RS, 96010900, Brazil
| | - Diego Alves
- Center of Chemical, Pharmaceutical and Food Sciences, Laboratory of Clean Organic Synthesis, Federal University of Pelotas, Pelotas, RS, 96010900, Brazil
| | - Lucielli Savegnago
- Technology Development Center, Division of Biotechnology, Neurobiotechnology Research Group, Federal University of Pelotas, Pelotas, RS, 96010900, Brazil. .,Center of Chemical, Pharmaceutical and Food Sciences, Laboratory of Clean Organic Synthesis, Federal University of Pelotas, Pelotas, RS, 96010900, Brazil.
| |
Collapse
|
4
|
Sarturi JM, Dornelles L, Segatto NV, Collares T, Seixas FK, Piccoli BC, da Silva FD, Omage FB, da Rocha JBT, Balaguez RA, Alves D, Lenardão EJ, Lopes EF, Kula-Pacurar A, Pyrc K, Sancineto L, Rodrigues OED. Chalcogenium-AZT derivatives: a plausible strategy to tackle the RT-inhibitors-related oxidative stress while maintaining their anti-HIV properties. Curr Med Chem 2022; 30:2449-2462. [PMID: 36065927 DOI: 10.2174/0929867329666220906095438] [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: 10/25/2021] [Revised: 03/08/2022] [Accepted: 04/01/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND This study presents the synthesis and multi-target behavior of the new 5'-hydroxy-3-(chalcogenyl-triazoyl)-thymidine and the biological evaluation of these compounds as antioxidant and anti-HIV agents. OBJECTIVE Antiretroviral therapy induces oxidative stress. Based on this, the main objective of this manuscript is the preparation of compounds that combine anti-HIV and antioxidant activities. METHODS The compounds were prepared from commercially available AZT, through a copper-catalyzed Huisgen 1,3-dipolar cycloadditions exploiting the AZT azide group and chalcogenyl alkynes. RESULTS The chalcogenium-AZT derivatives were obtained in good yields via click chemistry. The compounds evaluated showed antioxidant and anti-HIV activity. Additionally, in vivo toxicity of this class of compounds was also evaluated and the representative nucleoside did not change the survival, behavior, biochemical hepatic, and renal markers compared to the control mice. CONCLUSION Data suggest the feasibility of modifying the AZT nucleus with simple organochalcogen fragments, exploring the reactivity of the azide group via 1,3-dipolar Huisgen cycloaddition reaction. The design of these new compounds showed the initially desired biological activities.
Collapse
Affiliation(s)
- Joelma M Sarturi
- LabSelen-NanoBio - Departamento de Química, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Luciano Dornelles
- LabSelen-NanoBio - Departamento de Química, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Natalia V Segatto
- Molecular and Cellular Oncology Group, Graduate Program in Biotechnology, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Tiago Collares
- Molecular and Cellular Oncology Group, Graduate Program in Biotechnology, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Fabiana K Seixas
- Molecular and Cellular Oncology Group, Graduate Program in Biotechnology, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Bruna Candia Piccoli
- Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Fernanda D'Avila da Silva
- Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Folorunsho Bright Omage
- Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - João Batista Teixeira da Rocha
- Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Renata A Balaguez
- LASOL - CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Diego Alves
- LASOL - CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Eder J Lenardão
- LASOL - CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Eric F Lopes
- LASOL - CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Anna Kula-Pacurar
- Malopolska Centre of Biotechnology, Laboratory of Virology, Jagiellonian University, Krakow, Poland
| | - Krzysztof Pyrc
- Malopolska Centre of Biotechnology, Laboratory of Virology, Jagiellonian University, Krakow, Poland
| | - Luca Sancineto
- Group of Catalysis, Synthesis and Organic Green Chemistry, Department of Pharmaceutical Sciences, University of Perugia
| | - Oscar E D Rodrigues
- LabSelen-NanoBio - Departamento de Química, Universidade Federal de Santa Maria, Santa Maria, Brazil
| |
Collapse
|
5
|
Gomes CB, Corrêa CL, Cabrera DC, D'Oca MGM, Ruiz M, Collares T, Savegnago L, Seixas FK, Alves D. Organocatalytic synthesis and antitumor activity of novel 1,2,3-triazoles derived from fatty β-ketoesters. Med Chem 2022; 18:463-472. [DOI: 10.2174/1573406417666210921143646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 03/18/2021] [Accepted: 05/12/2021] [Indexed: 11/22/2022]
Abstract
Background:
Developing methods to synthesize highly functionalized and complex 1,2,3-triazoles from various combinations of substrates remains a significant challenge in organic synthesis. Thus, to the best of our knowledge, an organocatalytic approach to synthesize 1,2,3-triazoles derived from fatty acids has not been explored.
Objective:
In this sense, we describe here the organocatalyzed synthesis and preliminary results of antitumor and cytotoxic activity of a range of 1,2,3-triazoles derived from fatty esters.
Methods:
To synthesize 1,2,3-triazoles 3 derived from fatty β-ketoesters, we performed the reaction of appropriate aryl azides 2a-j with β-ketoesters 1a-c in the presence of 5 mol% of DBU using DMSO as a solvent at 70 °C for 24 h. The viability of 5637 cells was determined by measuring the reduction of soluble MTT to water-insoluble formazan. The IC50 concentration that inhibits 50% of cell growth and the results were obtained by at least three independent experiments in triplicate for each test.
Results:
Through enolate-mediated organocatalysis, 1,2,3-triazoles 3 derived from fatty β-ketoesters were synthesized in moderate to excellent yields by reacting fatty esters 1 with aryl azides 2 in the presence of a catalytic amount of 1,8-diazabicyclo[5.4.0]undec-7-ene (5 mol%). All compounds derived from palmitic acetoacetate 1a were evaluated regarding induced cytotoxicity in vitro in a human bladder cancer cell line, and compounds 3a, 3d, 3e, and 3g were shown to be promising alternatives for bladder cancer treatment and presented the lowest inhibitory concentration of IC50.
Conclusion:
We described a synthetic procedure to prepare 1,2,3-triazoles derived from fatty β-ketoesters by DBU-catalyzed 1,3-dipolar cycloaddition reactions of fatty esters with different aryl azides. Compounds derived from palmitic acetoacetate were screened for antitumor and cytotoxic activity in vitro in human bladder cancer cell lines, and compounds 3a, 3d, 3e, and 3g showed potential to treat bladder cancer.
Collapse
Affiliation(s)
- Carolina B. Gomes
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel - P.O. Box 354
- 96010-900, Pelotas, RS, Brazil
| | - Caroline L. Corrêa
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel - P.O. Box 354
- 96010-900, Pelotas, RS, Brazil
| | - Diego C. Cabrera
- Laboratory Organic Synthesis Kolbe- Federal University of Rio Grande - FURG. Rio Grande, RS, Brazil
| | - Marcelo G. M. D'Oca
- Laboratory Organic Synthesis Kolbe- Federal University of Rio Grande - FURG. Rio Grande, RS, Brazil
| | - Martha Ruiz
- Grupo de Pesquisa em Oncologia Celular e Molecular - GPO, CDTec, Universidade Federal de
Pelotas, UFPel, Pelotas, RS, Brazil
| | - Tiago Collares
- Grupo de Pesquisa em Oncologia Celular e Molecular - GPO, CDTec, Universidade Federal de
Pelotas, UFPel, Pelotas, RS, Brazil
| | - Lucielli Savegnago
- Grupo de Pesquisa em Neurobiotecnologia - GPN, CDTec, Universidade Federal
de Pelotas, UFPel, Pelotas, RS, Brazil
| | - Fabiana K. Seixas
- Grupo de Pesquisa em Oncologia Celular e Molecular - GPO, CDTec, Universidade Federal de
Pelotas, UFPel, Pelotas, RS, Brazil
| | - Diego Alves
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel - P.O. Box 354
- 96010-900, Pelotas, RS, Brazil
| |
Collapse
|
6
|
Birmann PT, Casaril AM, Zugno GP, Acosta GG, Severo Sabedra Sousa F, Collares T, Seixas FK, Jacob RG, Brüning CA, Savegnago L, Hartwig D. Flower essential oil of Tagetes minuta mitigates oxidative stress and restores BDNF-Akt/ERK2 signaling attenuating inflammation- and stress-induced depressive-like behavior in mice. Brain Res 2022; 1784:147845. [DOI: 10.1016/j.brainres.2022.147845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 02/06/2023]
|
7
|
Baldinotti R, Fronza MG, Fetter J, Silva L, Bender CB, Lüdtke DS, Seixas FK, Collares T, Alves D, Savegnago L. Protective effects of octylseleno-xylofuranoside in a streptozotocin-induced mouse model of Alzheimer's disease. Eur J Pharmacol 2021; 910:174499. [PMID: 34508753 DOI: 10.1016/j.ejphar.2021.174499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 03/09/2021] [Revised: 08/27/2021] [Accepted: 09/06/2021] [Indexed: 10/20/2022]
Abstract
Octylseleno-xylofuranoside (OSX) is an organic selenium compound which has previously shown antioxidant and antidepressant-like activities, trough the modulation of monoaminergic system and synaptic plasticity pathways. Since recent studies have suggested Major Depressive Disorder (MDD) as a potential risk factor or condition that precedes and correlates with Alzheimer's Disease (AD), this study aimed to evaluate the protective effects of OSX in an AD mouse model induced by intracerebroventricular injection of streptozotocin (STZ). To address this protective effect, mice were pre-treated with intragastrical OSX (0.1 mg/kg) or vehicle for 20 days. After the pre-treatment, mice were submitted to two alternated intracerebroventricular infusions of STZ (days 21 and 23) or saline. 15 days after the last STZ injection, cognitive and memory skills of the treated mice were evaluated on object recognition test, Y-maze, stepdown passive avoidance and social recognition paradigms. Added to that, measurements of oxidative stress markers and gene expression were evaluated in brain samples of the same mice groups. Mice pre-treatment with OSX protected mice from cognitive and memory decline elicited by STZ. This effect was attributed to the prevention of lipid peroxidation and modulation of acetylcholinesterase and monoamine oxidase activities in cerebral cortices and hippocampi by OSX treatment. Furthermore, OSX treatment demonstrated reduction of amyloidogenic pathway genes expression when compared to the control groups. Besides that, OSX treatment showed no hepatic and renal toxicity in the protocol used for treatment. Considering the antidepressant-like effect of OSX, together with the ability to prevent memory and cognitive impairment, this new compound may be an interesting strategy for targeting the comorbidity between MDD and AD, in a multitarget drug paradigm.
Collapse
Affiliation(s)
- Rodolfo Baldinotti
- Neurobiotechnology Research Group, Postgraduate Program in Biotechnology, Technologic Development Center, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Mariana G Fronza
- Neurobiotechnology Research Group, Postgraduate Program in Biotechnology, Technologic Development Center, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Jenifer Fetter
- Neurobiotechnology Research Group, Postgraduate Program in Biotechnology, Technologic Development Center, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Luana Silva
- Chemical Institute, Laboratory of Molecular Catalysis, Federal University of Rio Grande Do Sul, Porto Alegre, RS, Brazil
| | - Camila Bonemann Bender
- Technological Development Center, Division of Biotechnology, Molecular and Cellular Oncology Research Group and Cancer Biotechnology Laboratory, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Diogo Seibert Lüdtke
- Chemical Institute, Laboratory of Molecular Catalysis, Federal University of Rio Grande Do Sul, Porto Alegre, RS, Brazil
| | - Fabiana K Seixas
- Technological Development Center, Division of Biotechnology, Molecular and Cellular Oncology Research Group and Cancer Biotechnology Laboratory, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Tiago Collares
- Technological Development Center, Division of Biotechnology, Molecular and Cellular Oncology Research Group and Cancer Biotechnology Laboratory, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Diego Alves
- Center for Chemical, Pharmaceutical and Food Sciences, Laboratory of Clean Organic Synthesis, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Lucielli Savegnago
- Neurobiotechnology Research Group, Postgraduate Program in Biotechnology, Technologic Development Center, Federal University of Pelotas, Pelotas, RS, Brazil.
| |
Collapse
|
8
|
Birmann PT, Casaril AM, Pesarico AP, Caballero PS, Smaniotto TÂ, Rodrigues RR, Moreira ÂN, Conceição FR, Sousa FSS, Collares T, Seixas FK, França RT, Corcini CD, Savegnago L. Komagataella pastoris KM71H modulates neuroimmune and oxidative stress parameters in animal models of depression: A proposal for a new probiotic with antidepressant-like effect. Pharmacol Res 2021; 171:105740. [PMID: 34246781 DOI: 10.1016/j.phrs.2021.105740] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 06/02/2021] [Accepted: 06/19/2021] [Indexed: 12/20/2022]
Abstract
Many studies have suggested that imbalance of the gut microbial composition leads to an increase in pro-inflammatory cytokines and promotes oxidative stress, and this are directly associated with neuropsychiatric disorders, including major depressive disorder (MDD). Clinical data indicated that the probiotics have positive impacts on the central nervous system and thus may have a key role to treatment of MDD. This study examined the benefits of administration of Komagataella pastoris KM71H (8 log UFC·g-1/animal, intragastric route) in attenuating behavioral, neurochemical, and neuroendocrine changes in animal models of depressive-like behavior induced by repeated restraint stress and lipopolysaccharide (0.83 mg/kg). We demonstrated that pretreatment of mice with this yeast prevented depression-like behavior induced by stress and an inflammatory challenge in mice. We believe that this effect is due to modulation of the permeability of the blood-brain barrier, restoration in the mRNA levels of the Nuclear factor kappa B, Interleukin 1β, Interferon γ, and Indoleamine 2 3-dioxygenase, and prevention of oxidative stress in the prefrontal cortices, hippocampi, and intestine of mice and of the decrease the plasma corticosterone levels. Thus, we conclude that K. pastoris KM71H has properties for a new proposal of probiotic with antidepressant-like effect, arising as a promising therapeutic strategy for MDD.
Collapse
Affiliation(s)
- Paloma T Birmann
- Technologic Development Center, Division of Biotechnology, Neurobiotechnology Research Group, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Angela M Casaril
- Technologic Development Center, Division of Biotechnology, Neurobiotechnology Research Group, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Ana Paula Pesarico
- Technologic Development Center, Division of Biotechnology, Neurobiotechnology Research Group, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Pamela S Caballero
- Technological Development Center, Division of Biotechnology, Applied Immunology Laboratory, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Thiago  Smaniotto
- Technologic Development Center, Division of Biotechnology, Neurobiotechnology Research Group, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Rafael R Rodrigues
- Technological Development Center, Division of Biotechnology, Applied Immunology Laboratory, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Ângela N Moreira
- Technological Development Center, Division of Biotechnology, Applied Immunology Laboratory, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Fabricio R Conceição
- Technological Development Center, Division of Biotechnology, Applied Immunology Laboratory, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Fernanda S S Sousa
- Technological Development Center, Division of Biotechnology, Molecular and Cellular Oncology Research Group and Functional Genomics Laboratory, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Tiago Collares
- Technological Development Center, Division of Biotechnology, Molecular and Cellular Oncology Research Group and Functional Genomics Laboratory, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Fabiana K Seixas
- Technological Development Center, Division of Biotechnology, Molecular and Cellular Oncology Research Group and Functional Genomics Laboratory, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Raqueli T França
- Center for Animal Reproduction, Faculty of Veterinary Medicine, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Carine D Corcini
- Center for Animal Reproduction, Faculty of Veterinary Medicine, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Lucielli Savegnago
- Technologic Development Center, Division of Biotechnology, Neurobiotechnology Research Group, Federal University of Pelotas, Pelotas, RS, Brazil.
| |
Collapse
|
9
|
Pacheco BS, Da Silva CC, Da Rosa BN, Mariotti KC, Nicolodi C, Poletti T, Segatto NV, Collares T, Seixas FK, Paniz O, Carreño NLV, Pereira CMP. Monofunctional curcumin analogues: evaluation of green and safe developers of latent fingerprints. Chem Pap 2021. [DOI: 10.1007/s11696-021-01556-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
10
|
Fronza MG, Baldinotti R, Sacramento M, Gutierres J, Carvalho FB, Fernandes MDC, Sousa FSS, Seixas FK, Collares T, Alves D, Pratico D, Savegnago L. Effect of QTC-4-MeOBnE Treatment on Memory, Neurodegeneration, and Neurogenesis in a Streptozotocin-Induced Mouse Model of Alzheimer's Disease. ACS Chem Neurosci 2021; 12:109-122. [PMID: 33315382 DOI: 10.1021/acschemneuro.0c00615] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Growing evidence suggests that drugs targeting neurogenesis and myelinization could be novel therapeutic targets against Alzheimer's disease (AD). Intracerebroventricular (icv) injection of streptozotocin (STZ) induces neurodegeneration through multiple mechanisms ultimately resulting in reduced adult neurogenesis. Previously, the multitarget compound QTC-4-MeOBnE (1-(7-chloroquinolin-4-yl)-N-(4-methoxybenzyl)-5-methyl-1H-1,2,3-triazole-4-carboxamide) demonstrated beneficial effects in preclinical models of AD. Here we investigated its pharmacokinetics profile and the effect on memory impairments and neurodegeneration induced by STZ. Two icv injections of STZ resulted in significant cognitive and memory impairments, assessed by novel object recognition, Y-maze, social recognition, and step-down passive avoidance paradigms. These deficits were reversed in STZ-injected mice treated with QTC-4-MeOBnE. This effect was associated with reversion of neuronal loss in hippocampal dentate gyrus, reduced oxidative stress, and amelioration of synaptic function trough Na+/K+ ATPase and acetylcholinesterase activities. Furthermore, brains from QTC-4-MeOBnE-treated mice had a significant increase in adult neurogenesis and remyelination through Prox1/NeuroD1 and Wnt/β-catenin pathways. Overall, our findings support the potential anti-AD effect of QTC-4-MeOBnE through multiple pathways, all of which have been involved in the onset and progression of the disease.
Collapse
Affiliation(s)
- Mariana G. Fronza
- Research Group on Neurobiotechnology−GPN, Technological Development Center (CDTec), Federal University of Pelotas (UFPel), Pelotas, RS 96010-610, Brazil
| | - Rodolfo Baldinotti
- Research Group on Neurobiotechnology−GPN, Technological Development Center (CDTec), Federal University of Pelotas (UFPel), Pelotas, RS 96010-610, Brazil
| | - Manoela Sacramento
- Laboratory of Clean Organic Synthesis−LASOL, Center for Chemical, Pharmaceutical and Food Sciences (CCQFA), UFPel, Pelotas, RS 96010-610, Brazil
| | - Jessié Gutierres
- Pathology Laboratory, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, RS 90050-170, Brazil
| | - Fabiano Barbosa Carvalho
- Pathology Laboratory, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, RS 90050-170, Brazil
| | - Marilda da Cruz Fernandes
- Pathology Laboratory, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, RS 90050-170, Brazil
| | | | - Fabiana K. Seixas
- Oncology Research Group, GPO, CDTec, UFPel, CDTec, Pelotas, RS 96010-610, Brazil
| | - Tiago Collares
- Oncology Research Group, GPO, CDTec, UFPel, CDTec, Pelotas, RS 96010-610, Brazil
| | - Diego Alves
- Laboratory of Clean Organic Synthesis−LASOL, Center for Chemical, Pharmaceutical and Food Sciences (CCQFA), UFPel, Pelotas, RS 96010-610, Brazil
| | - Domenico Pratico
- Alzheimer’s Center at Temple−ACT, Temple University, Lewis Katz School of Medicine, Philadelphia, Pennsylvania 19140, United States of America
| | - Lucielli Savegnago
- Research Group on Neurobiotechnology−GPN, Technological Development Center (CDTec), Federal University of Pelotas (UFPel), Pelotas, RS 96010-610, Brazil
| |
Collapse
|
11
|
Birmann PT, Casaril AM, Hartwig D, Jacob RG, Seixas FK, Collares T, Savegnago L. A novel pyrazole-containing selenium compound modulates the oxidative and nitrergic pathways to reverse the depression-pain syndrome in mice. Brain Res 2020; 1741:146880. [DOI: 10.1016/j.brainres.2020.146880] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 04/22/2020] [Accepted: 05/10/2020] [Indexed: 02/07/2023]
|
12
|
Bampi SR, Casaril AM, Fronza MG, Domingues M, Vieira B, Begnini KR, Seixas FK, Collares TV, Lenardão EJ, Savegnago L. The selenocompound 1-methyl-3-(phenylselanyl)-1H-indole attenuates depression-like behavior, oxidative stress, and neuroinflammation in streptozotocin-treated mice. Brain Res Bull 2020; 161:158-165. [PMID: 32470357 DOI: 10.1016/j.brainresbull.2020.05.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 11/22/2019] [Revised: 04/08/2020] [Accepted: 05/15/2020] [Indexed: 12/22/2022]
Abstract
Major depressive disorder (MDD) is a chronic mental illness affecting a wide range of people worldwide. The pathophysiology of MDD is not completely elucidated, but it is believed that oxidative stress and neuroinflammation are involved. In light with this, the aim of the present study was to investigate whether a single administration of the antioxidant 1-methyl-3-(phenylselanyl)-1H-indole (MFSeI) was able to reverse the streptozotocin-induced depression-like behavior, oxidative stress, and neuroinflammation in mice. MFSeI (10 mg/kg) was administered intragastrically (i.g.) 24 h after the intracerebroventricular injection of STZ (0.2 mg/4 μL/per mouse). Thirty minutes after MFSeI administration, behavioral tests and neurochemical analyses were performed. Fluoxetine (10 mg/kg, i.g.) was used as a positive control. MFSeI and fluoxetine were able to reverse the STZ-induced depression-like behavior, as evidenced by decreased immobility time in the forced swimming test and increased grooming time in the splash test. Mechanistically, MFSeI reversed the increased levels of reactive species and lipid peroxidation in the prefrontal cortices and hippocampi of STZ-treated mice. Additionally, neuroinflammation (i.e. expression of NF-κB, IL-1β, and TNF-α) and the reduced mRNA levels of BDNF in the and hippocampi of depressed mice were reversed by treatment with MFSeI. Fluoxetine did not improve the STZ-induced alterations at the levels of reactive species, NF-κB and BDNF in the prefrontal cortices neither the levels of TNF-α in both brain regions. Together, these data suggest that the MFSeI may be a promising compound with antidepressant-like action, reducing oxidative stress and modulating inflammatory pathways in the brain of depressed mice.
Collapse
Affiliation(s)
- Suely Ribeiro Bampi
- Postgraduate Program in Biotechnology, Neurobiotechnology Research Group, Center of Biotechnology, Federal University of Pelotas, RS, Brazil
| | - Angela Maria Casaril
- Postgraduate Program in Biotechnology, Neurobiotechnology Research Group, Center of Biotechnology, Federal University of Pelotas, RS, Brazil
| | - Mariana G Fronza
- Postgraduate Program in Biotechnology, Neurobiotechnology Research Group, Center of Biotechnology, Federal University of Pelotas, RS, Brazil
| | - Micaela Domingues
- Postgraduate Program in Biotechnology, Neurobiotechnology Research Group, Center of Biotechnology, Federal University of Pelotas, RS, Brazil
| | - Beatriz Vieira
- Postgraduate Program in Chemistry, Laboratory of Clean Organic Synthesis, Center of Chemical, Pharmaceutical and Food Sciences, Federal University of Pelotas, RS, Brazil
| | - Karine Rech Begnini
- Postgraduate Program in Biotechnology, Molecular and Cellular Oncology Research Group, Center of Biotechnology, Federal University of Pelotas, RS, Brazil
| | - Fabiana K Seixas
- Postgraduate Program in Biotechnology, Molecular and Cellular Oncology Research Group, Center of Biotechnology, Federal University of Pelotas, RS, Brazil
| | - Tiago Veiras Collares
- Postgraduate Program in Biotechnology, Molecular and Cellular Oncology Research Group, Center of Biotechnology, Federal University of Pelotas, RS, Brazil
| | - Eder João Lenardão
- Postgraduate Program in Chemistry, Laboratory of Clean Organic Synthesis, Center of Chemical, Pharmaceutical and Food Sciences, Federal University of Pelotas, RS, Brazil
| | - Lucielli Savegnago
- Postgraduate Program in Biotechnology, Neurobiotechnology Research Group, Center of Biotechnology, Federal University of Pelotas, RS, Brazil.
| |
Collapse
|
13
|
Fronza MG, Baldinotti R, Fetter J, Sacramento M, Sousa FSS, Seixas FK, Collares T, Alves D, Praticò D, Savegnago L. QTC-4-MeOBnE Rescues Scopolamine-Induced Memory Deficits in Mice by Targeting Oxidative Stress, Neuronal Plasticity, and Apoptosis. ACS Chem Neurosci 2020; 11:1259-1269. [PMID: 32227985 DOI: 10.1021/acschemneuro.9b00661] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Cognitive decline and memory impairment induced by disruption of cholinergic neurons and oxidative brain damage are among the earliest pathological hallmark signatures of Alzheimer's disease. Scopolamine is a postsynaptic muscarinic receptor blocker which causes impairment of cholinergic transmission resulting in cognitive deficits. Herein we investigated the effect of QTC-4-MeOBnE (1-(7-chloroquinolin-4-yl)-N-(4-methoxybenzyl)-5-methyl-1H-1,2,3-triazole-4-carboxamide) on memory impairments in mice chronically treated with scopolamine and the molecular mechanisms involved. Administration of scopolamine (1 mg/kg) for 15 days resulted in significant impairments in working and short-term memory in mice, as assessed by the novel object recognition and the Y-maze paradigms. However, both deficits were prevented if mice receiving the scopolamine were also treated with QTC-4-MeOBnE. This effect was associated with an increase in antioxidant enzymes (superoxide dismutase and catalase), a reduction in lipid peroxidation, and an increase in Nrf2 expression. Moreover, brains from QTC-4-MeOBnE treated mice had a significant decrease in acetylcholinesterase activity and glycogen synthase kinase-3β levels but an increase in brain-derived neurotrophic factor and Bcl-2 expression levels. Taken together our findings demonstrate that the beneficial effect of QTC-4-MeOBnE in a mouse model of scopolamine-induced memory impairment is mediated via the involvement of different molecular pathways including oxidative stress, neuroplasticity, neuronal vulnerability, and apoptosis. Our study provides further evidence on the promising therapeutic potential of QTC-4-MeOBnE as a multifactorial disease modifying drug in AD and related dementing disorders.
Collapse
Affiliation(s)
- Mariana G. Fronza
- Neurobiotechnology Research Group - GPN, Federal University of Pelotas - UFPel, Technological Development Center, Pelotas, RS 96160-000, Brazil
| | - Rodolfo Baldinotti
- Neurobiotechnology Research Group - GPN, Federal University of Pelotas - UFPel, Technological Development Center, Pelotas, RS 96160-000, Brazil
| | - Jenifer Fetter
- Neurobiotechnology Research Group - GPN, Federal University of Pelotas - UFPel, Technological Development Center, Pelotas, RS 96160-000, Brazil
| | - Manoela Sacramento
- Laboratory of Clean Organic Synthesis - LASOL, Federal University of Pelotas - UFPel, Chemical, Pharmaceutical and Food Science Center, Pelotas, RS 96160-000, Brazil
| | - Fernanda Severo Sabedra Sousa
- Oncology Research Group - GPO, CDTec, Federal University of Pelotas - UFPel, Technological Development Center, Pelotas, RS 96160-000, Brazil
| | - Fabiana K. Seixas
- Oncology Research Group - GPO, CDTec, Federal University of Pelotas - UFPel, Technological Development Center, Pelotas, RS 96160-000, Brazil
| | - Tiago Collares
- Oncology Research Group - GPO, CDTec, Federal University of Pelotas - UFPel, Technological Development Center, Pelotas, RS 96160-000, Brazil
| | - Diego Alves
- Laboratory of Clean Organic Synthesis - LASOL, Federal University of Pelotas - UFPel, Chemical, Pharmaceutical and Food Science Center, Pelotas, RS 96160-000, Brazil
| | - Domenico Praticò
- Alzheimer’s Center at Temple − ACT, Temple University, Lewis Katz School of Medicine, Philadelphia, Pennsylvania 19140, United States
| | - Lucielli Savegnago
- Neurobiotechnology Research Group - GPN, Federal University of Pelotas - UFPel, Technological Development Center, Pelotas, RS 96160-000, Brazil
| |
Collapse
|
14
|
Casaril AM, Domingues M, Bampi SR, Lourenço DDA, Smaniotto TÂ, Segatto N, Vieira B, Seixas FK, Collares T, Lenardão EJ, Savegnago L. The antioxidant and immunomodulatory compound 3-[(4-chlorophenyl)selanyl]-1-methyl-1H-indole attenuates depression-like behavior and cognitive impairment developed in a mouse model of breast tumor. Brain Behav Immun 2020; 84:229-241. [PMID: 31837417 DOI: 10.1016/j.bbi.2019.12.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 11/20/2019] [Accepted: 12/09/2019] [Indexed: 12/15/2022] Open
Abstract
Psychiatric alterations are often found in patients with breast cancer even before the initiation of adjuvant therapy, resulting in a poor quality of life. It has become accepted that neuroinflammation and oxidative stress are involved in the pathophysiology of depression and cognitive impairment. Herein, we tested the hypothesis that treatment with the antioxidant and immunomodulatory selenium-containing compound 3-[(4-chlorophenyl)selanyl]-1-methyl-1H-indole (CMI)could attenuate behavioral and neurochemical alterations in a mammary (4T1) tumor model. Female BALB/c mice were subcutaneously inoculated with 4T1 cancer cells (1 × 105 cells/mice) or PBS. From days 14 to 20, mice received daily gavage with canola oil or CMI. On day 21, mice were submitted to behavioral tests followed by euthanasia. We found that CMI did not alter tumor growth, body weight, and body temperature in tumor-bearing mice. Importantly, treatment with CMI abrogated tumor-induced depression-like behavior and cognitive impairment. By the time CMI improved the behavioral alterations, it had reduced tumor-induced neuroinflammation (altered expression of NFκB, IL-1β, TNF-α, IL-10, IDO, and COX-2) and oxidative stress (altered expression of iNOS and Nrf2, and levels of reactive species, nitric oxide, lipid peroxidation, and superoxide dismutase activity) in the prefrontal cortices and hippocampi of mice. A molecular docking approach suggested the ability of CMI to inhibit the activity of iNOS and COX-2. Together, our results indicate that CMI treatment may attenuate depression and cognitive impairment in 4T1 tumor-bearing mice, and be a groundbreaking strategy for the treatment of cancer-related psychiatric symptoms to improve the quality of life of cancer patients.
Collapse
Affiliation(s)
- Angela Maria Casaril
- Technological Development Center, Division of Biotechnology, Neurobiotechology Research Group, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Micaela Domingues
- Technological Development Center, Division of Biotechnology, Neurobiotechology Research Group, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Suely Ribeiro Bampi
- Technological Development Center, Division of Biotechnology, Neurobiotechology Research Group, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Darling de Andrade Lourenço
- Technological Development Center, Division of Biotechnology, Neurobiotechology Research Group, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Thiago Ângelo Smaniotto
- Technological Development Center, Division of Biotechnology, Neurobiotechology Research Group, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Natália Segatto
- Technological Development Center, Division of Biotechnology, Molecular and Cellular Oncology Research Group and Functional Genomics Laboratory, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Beatriz Vieira
- Center of Chemical, Pharmaceutical and Food Sciences, Laboratory of Clean Organic Synthesis, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Fabiana K Seixas
- Technological Development Center, Division of Biotechnology, Molecular and Cellular Oncology Research Group and Functional Genomics Laboratory, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Tiago Collares
- Technological Development Center, Division of Biotechnology, Molecular and Cellular Oncology Research Group and Functional Genomics Laboratory, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Eder João Lenardão
- Center of Chemical, Pharmaceutical and Food Sciences, Laboratory of Clean Organic Synthesis, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Lucielli Savegnago
- Technological Development Center, Division of Biotechnology, Neurobiotechology Research Group, Federal University of Pelotas, Pelotas, RS, Brazil.
| |
Collapse
|
15
|
Quoos N, Dornelles L, Buss J, Begnini KR, Collares T, Seixas FK, Garcia FD, Rodrigues OED. Synthesis and Antiproliferative Evaluation of 5′‐Arylchalcogenyl‐3‐(phenylselanyl‐triazoyl)‐thymidine. ChemistrySelect 2020. [DOI: 10.1002/slct.201904076] [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: 11/11/2022]
Affiliation(s)
- Natália Quoos
- LabSelen-NanoBio - Departamento de QuímicaUniversidade Federal de Santa Maria, Santa Maria Brazil
| | - Luciano Dornelles
- LabSelen-NanoBio - Departamento de QuímicaUniversidade Federal de Santa Maria, Santa Maria Brazil
| | - Julieti Buss
- Molecular and Cellular Oncology Group, Graduate Program in BiotechnologyUniversidade Federal de Pelotas, Pelotas Brazil
| | - Karine Rech Begnini
- Molecular and Cellular Oncology Group, Graduate Program in BiotechnologyUniversidade Federal de Pelotas, Pelotas Brazil
| | - Tiago Collares
- Molecular and Cellular Oncology Group, Graduate Program in BiotechnologyUniversidade Federal de Pelotas, Pelotas Brazil
| | - Fabiana K. Seixas
- Molecular and Cellular Oncology Group, Graduate Program in BiotechnologyUniversidade Federal de Pelotas, Pelotas Brazil
| | - Fabio Dutra Garcia
- LabSelen-NanoBio - Departamento de QuímicaUniversidade Federal de Santa Maria, Santa Maria Brazil
| | - Oscar E. D. Rodrigues
- LabSelen-NanoBio - Departamento de QuímicaUniversidade Federal de Santa Maria, Santa Maria Brazil
| |
Collapse
|
16
|
Bampi SR, Casaril AM, Domingues M, de Andrade Lourenço D, Pesarico AP, Vieira B, Begnini KR, Seixas FK, Collares TV, Lenardão EJ, Savegnago L. Depression-like behavior, hyperglycemia, oxidative stress, and neuroinflammation presented in diabetic mice are reversed by the administration of 1-methyl-3-(phenylselanyl)-1H-indole. J Psychiatr Res 2020; 120:91-102. [PMID: 31654972 DOI: 10.1016/j.jpsychires.2019.10.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/24/2019] [Accepted: 10/03/2019] [Indexed: 02/08/2023]
Abstract
Oxidative stress and neuroinflammation are found both in diabetes mellitus and major depressive disorder (MDD). In addition to damage in peripheral organs, such as liver and kidney, diabetic patients have a higher risk of developing depression. In this sense, the objective of the present study was to characterize the antidepressant-like effect of a selenium-containing compound, the 1-methyl-3-(phenylselanyl)-1H-indole (MFSeI), in streptozotocin (STZ)-induced diabetic mice. STZ (200 mg/kg, i.p.) was used to induce diabetes mellitus type I, and after seven days, the administration of MFSeI (10 mg/kg, i.g.) was initiated and followed for the next 14 days. Twenty-four hours after the last administration of MFSeI, the behavioral tests were performed, followed by euthanasia. The treatment with MFSeI was able to reverse the hyperglycemia induced by STZ. MFSeI also decreased the plasma levels of biomarkers of liver and kidney damage. Importantly, MFSeI reversed the depression-like behavior induced by STZ in the tail suspension test and forced swimming test without promoting locomotor alterations. Furthermore, MFSeI reversed the increased levels of reactive species and lipid peroxidation in the prefrontal cortex (PFC), hippocampus (HC), liver, and kidney of STZ-treated mice. Treatment with MFSeI also decreased the expression of tumor necrosis factor-alpha, inducible nitric oxide synthase and indoleamine 2,3-dioxygenase, while increasing the expression of interleukin-10, insulin receptor substrate-1 and glucose transport-4 in the PFC and HC of mice. Taken together, the results indicate the effectiveness of MFSeI against depression-like behavior and central and peripheral complications caused by diabetes in mice.
Collapse
Affiliation(s)
- Suely Ribeiro Bampi
- Neurobiotechnology Research Group, Center of Biotechnology, Federal University of Pelotas, RS, Brazil
| | - Angela Maria Casaril
- Neurobiotechnology Research Group, Center of Biotechnology, Federal University of Pelotas, RS, Brazil
| | - Micaela Domingues
- Neurobiotechnology Research Group, Center of Biotechnology, Federal University of Pelotas, RS, Brazil
| | | | - Ana Paula Pesarico
- Neurobiotechnology Research Group, Center of Biotechnology, Federal University of Pelotas, RS, Brazil
| | - Beatriz Vieira
- Laboratory of Clean Organic Synthesis, Center of Chemical, Pharmaceutical and Food Sciences, Federal University of Pelotas, RS, Brazil
| | - Karine Rech Begnini
- Cellular and Molecular Oncology Research Group, Center of Biotechnology, Federal University of Pelotas, RS, Brazil
| | - Fabiana K Seixas
- Cellular and Molecular Oncology Research Group, Center of Biotechnology, Federal University of Pelotas, RS, Brazil
| | - Tiago Veiras Collares
- Cellular and Molecular Oncology Research Group, Center of Biotechnology, Federal University of Pelotas, RS, Brazil
| | - Eder João Lenardão
- Laboratory of Clean Organic Synthesis, Center of Chemical, Pharmaceutical and Food Sciences, Federal University of Pelotas, RS, Brazil
| | - Lucielli Savegnago
- Neurobiotechnology Research Group, Center of Biotechnology, Federal University of Pelotas, RS, Brazil.
| |
Collapse
|
17
|
Lucas CG, Chen PR, Seixas FK, Prather RS, Collares T. Applications of omics and nanotechnology to improve pig embryo production in vitro. Mol Reprod Dev 2019; 86:1531-1547. [PMID: 31478591 DOI: 10.1002/mrd.23260] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 08/06/2019] [Indexed: 12/17/2022]
Abstract
An appropriate environment to optimize porcine preimplantation embryo production in vitro is required as genetically modified pigs have become indispensable for biomedical research and agriculture. To provide suitable culture conditions, omics technologies have been applied to elucidate which metabolic substrates and pathways are involved during early developmental processes. Metabolomic profiling and transcriptional analysis comparing in vivo- and in vitro-derived embryos have demonstrated the important role of amino acids during preimplantation development. Transcriptional profiling studies have been helpful in assessing epigenetic reprogramming agents to allow for the correction of gene expression during the cloning process. Along with this, nanotechnology, which is a highly promising field, has allowed for the use of engineered nanoplatforms in reproductive biology. A growing number of studies have explored the use of nanoengineered materials for sorting, labeling, and targeting purposes; which demonstrates their potential to become one of the solutions for precise delivery of molecules into gametes and embryos. Considering the contributions of omics and the recent progress in nanoscience, in this review, we focused on their emerging applications for current in vitro pig embryo production systems to optimize the generation of genetically modified animals.
Collapse
Affiliation(s)
- Caroline G Lucas
- Division of Animal Science, National Swine Resource and Research Center, University of Missouri, Columbia, Missouri
| | - Paula R Chen
- Division of Animal Science, National Swine Resource and Research Center, University of Missouri, Columbia, Missouri
| | - Fabiana K Seixas
- Cancer Biotechnology Laboratory, Research Group on Cellular and Molecular Oncology, Postgraduate Program in Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Randall S Prather
- Division of Animal Science, National Swine Resource and Research Center, University of Missouri, Columbia, Missouri
| | - Tiago Collares
- Cancer Biotechnology Laboratory, Research Group on Cellular and Molecular Oncology, Postgraduate Program in Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| |
Collapse
|
18
|
Fronza MG, Baldinotti R, Martins MC, Goldani B, Dalberto BT, Kremer FS, Begnini K, Pinto LDS, Lenardão EJ, Seixas FK, Collares T, Alves D, Savegnago L. Rational design, cognition and neuropathology evaluation of QTC-4-MeOBnE in a streptozotocin-induced mouse model of sporadic Alzheimer's disease. Sci Rep 2019; 9:7276. [PMID: 31086208 PMCID: PMC6513848 DOI: 10.1038/s41598-019-43532-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [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: 08/09/2018] [Accepted: 04/23/2019] [Indexed: 11/28/2022] Open
Abstract
Alzheimer’s disease (AD) is a multifactorial pathology characterized by amyloid deposits, neurofibrillary formation, oxidative stress and cholinergic system dysfunction. In this sense, here we report the rational design of a multi-target directed ligand (MTDL) for AD based on virtual screening and bioinformatic analyses, exploring the molecular targets β-secretase (BACE-1), glycogen synthase kinase-3β (GSK-3β) and acetylcholinesterase (AChE). After this screening, the compound with higher molecular docking affinity was selected, the 1-(7-chloroquinolin-4-yl)-N-(4-methoxybenzyl)-5-methyl-1H-1,2,3-triazole-4 carboxamide(QTC-4-MeOBnE). To further our studies, the protective effect of QTC-4-MeOBnE (0.1 and 1 mg/kg for 20 days) on STZ-induced sporadic AD mice was determined. QTC-4-MeOBnE pretreatment attenuated cognitive and memory deficit induced by STZ in an object recognition test, Y-maze, social recognition test and step-down passive avoidance. The mechanisms underlying this action might be attributed to the reduction of lipid peroxidation and reactive species formation in the prefrontal cortex and hippocampus of mice submitted to STZ. In addition, QTC-4-MeOBnE pretreatment abolished the up-regulation of AChE activity and the overexpression of GSK 3β and genes involved in amyloid cascade such as BACE-1, protein precursor amyloid, у-secretase, induced by STZ. Moreover, toxicological parameters were not modified by QTC-4-MeOBnE chronic treatment. This evidence suggests that QTC-4-MeOBnE exerts its therapeutic effect through multiple pathways involved in AD.
Collapse
Affiliation(s)
- Mariana G Fronza
- Research Group on Neurobiotechnology - GPN, CDTec, Federal University of Pelotas, UFPel, Pelotas, RS, Brazil
| | - Rodolfo Baldinotti
- Research Group on Neurobiotechnology - GPN, CDTec, Federal University of Pelotas, UFPel, Pelotas, RS, Brazil
| | - Maria Clara Martins
- Research Group on Neurobiotechnology - GPN, CDTec, Federal University of Pelotas, UFPel, Pelotas, RS, Brazil
| | - Bruna Goldani
- Laboratory of Clean Organic Synthesis - LASOL, CCQFA, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Bianca Thaís Dalberto
- Laboratory of Clean Organic Synthesis - LASOL, CCQFA, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Frederico Schmitt Kremer
- Laboratory of Bioinformatics and Proteomics - BIOPRO-LAB, CDTec, Federal University of Pelotas, UFPel, Pelotas, RS, Brazil
| | - Karine Begnini
- Oncology Research Group - GPO, CDTec, Federal University of Pelotas, UFPel, Pelotas, RS, Brazil
| | - Luciano da Silva Pinto
- Laboratory of Bioinformatics and Proteomics - BIOPRO-LAB, CDTec, Federal University of Pelotas, UFPel, Pelotas, RS, Brazil
| | - Eder João Lenardão
- Laboratory of Clean Organic Synthesis - LASOL, CCQFA, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Fabiana K Seixas
- Oncology Research Group - GPO, CDTec, Federal University of Pelotas, UFPel, Pelotas, RS, Brazil
| | - Tiago Collares
- Oncology Research Group - GPO, CDTec, Federal University of Pelotas, UFPel, Pelotas, RS, Brazil
| | - Diego Alves
- Laboratory of Clean Organic Synthesis - LASOL, CCQFA, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Lucielli Savegnago
- Research Group on Neurobiotechnology - GPN, CDTec, Federal University of Pelotas, UFPel, Pelotas, RS, Brazil.
| |
Collapse
|
19
|
Silveira TLR, Martins GB, Domingues WB, Remião MH, Barreto BF, Lessa IM, Santos L, Pinhal D, Dellagostin OA, Seixas FK, Collares T, Robaldo RB, Campos VF. Corrigendum: Gene and Blood Analysis Reveal That Transfer from Brackish Water to Freshwater Is More Stressful to the Silverside Odontesthes humensis. Front Genet 2019; 10:250. [PMID: 30972104 PMCID: PMC6444192 DOI: 10.3389/fgene.2019.00250] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 03/06/2019] [Indexed: 11/13/2022] Open
Affiliation(s)
- Tony L. R. Silveira
- Laboratory of Structural Genomics, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Gabriel B. Martins
- Laboratory of Physiology, Institute of Biology, Federal University of Pelotas, Pelotas, Brazil
| | - William B. Domingues
- Laboratory of Structural Genomics, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Mariana H. Remião
- Laboratory of Cancer Biotechnology, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Bruna F. Barreto
- Laboratory of Structural Genomics, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Ingrid M. Lessa
- Laboratory of Structural Genomics, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Lucas Santos
- Laboratory of Structural Genomics, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Danillo Pinhal
- Genomics and Molecular Evolution Laboratory, Department of Genetics, Institute of Biosciences of Botucatu, São Paulo State University, Botucatu, Brazil
| | - Odir A. Dellagostin
- Laboratory of Vaccinology, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Fabiana K. Seixas
- Laboratory of Cancer Biotechnology, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Tiago Collares
- Laboratory of Cancer Biotechnology, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Ricardo B. Robaldo
- Laboratory of Physiology, Institute of Biology, Federal University of Pelotas, Pelotas, Brazil
| | - Vinicius F. Campos
- Laboratory of Structural Genomics, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
- *Correspondence: Vinicius F. Campos
| |
Collapse
|
20
|
Affiliation(s)
- Tiago Collares
- Laboratory of Cancer Biotechnology, Biotechnology Postgraduate Program, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Fabiana K Seixas
- Laboratory of Cancer Biotechnology, Biotechnology Postgraduate Program, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Laurie A Rund
- Animal Science, University of Illinois at Urbana-Champaign, Champaign, IL, United States
| | - Lawrence B Schook
- Animal Science, University of Illinois at Urbana-Champaign, Champaign, IL, United States.,Department of Radiology, University of Illinois at Chicago, Chicago, IL, United States
| |
Collapse
|
21
|
Domingues M, Casaril AM, Birmann PT, Lourenço DDA, Vieira B, Begnini K, Lenardão EJ, Collares T, Seixas FK, Savegnago L. Selanylimidazopyridine Prevents Lipopolysaccharide-Induced Depressive-Like Behavior in Mice by Targeting Neurotrophins and Inflammatory/Oxidative Mediators. Front Neurosci 2018; 12:486. [PMID: 30072867 PMCID: PMC6060445 DOI: 10.3389/fnins.2018.00486] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [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: 03/12/2018] [Accepted: 06/28/2018] [Indexed: 12/20/2022] Open
Abstract
Inasmuch, as the major depressive disorder (MDD) has been characterized as a heterogeneous disease as the inflammatory processes, neurotrophic factors' dysfunction and oxidative/nitrosative stress are believed to play a vital role in its establishment. Organoselenium compounds stand out due to their antioxidant, anti-inflammatory, neuroprotective, and antidepressant effects. In this sense, the present study investigated the effect of 3-((4-methoxyphenyl)selanyl)-2-phenylimidazo[1,2-a]pyridine (MPI; 20 and 50 mg/kg, intragastrically) pretreatment [30 min prior lipopolysaccharide (LPS) challenge (0.83 mg/kg)] on acute LPS induced depressive-like behavior, neuroinflammation, and oxidative stress. MPI was able to prevent the increased immobility time induced by LPS on the forced swimming test (FST), the increase in pro-inflammatory cytokines' expression in the hippocampus (HC) of mice after LPS challenge via NFkB downregulation, and the increase of the reactive oxygen species generation and lipid peroxidation in the prefrontal cortex and HC of mice. It was observed that at the doses tested, MPI protected against reducing levels of BDNF in the cortex and HC of mice challenged with LPS. These observations suggest that the antidepressant-like effect of MPI depends on its capacity to modulate the inflammatory, antioxidant, and neurotrophic systems.
Collapse
Affiliation(s)
- Micaela Domingues
- Programa de Pós-Graduação em Biotecnologia, Grupo de Pesquisa em Neurobiotecnologia, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Angela M Casaril
- Programa de Pós-Graduação em Biotecnologia, Grupo de Pesquisa em Neurobiotecnologia, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Paloma T Birmann
- Programa de Pós-Graduação em Biotecnologia, Grupo de Pesquisa em Neurobiotecnologia, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Darling de A Lourenço
- Programa de Pós-Graduação em Biotecnologia, Grupo de Pesquisa em Neurobiotecnologia, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Beatriz Vieira
- Programa de Pós-Graduação em Química, Laboratório de Síntese Orgânica Limpa, Química/Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Karine Begnini
- Programa de Pós-Graduação em Biotecnologia, Grupo de Pesquisa em Oncologia Celular e Molecular, Laboratório de Biotecnologia do Cancer, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Eder J Lenardão
- Programa de Pós-Graduação em Química, Laboratório de Síntese Orgânica Limpa, Química/Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Tiago Collares
- Programa de Pós-Graduação em Biotecnologia, Grupo de Pesquisa em Oncologia Celular e Molecular, Laboratório de Biotecnologia do Cancer, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Fabiana K Seixas
- Programa de Pós-Graduação em Biotecnologia, Grupo de Pesquisa em Oncologia Celular e Molecular, Laboratório de Biotecnologia do Cancer, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Lucielli Savegnago
- Programa de Pós-Graduação em Biotecnologia, Grupo de Pesquisa em Neurobiotecnologia, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Brazil
| |
Collapse
|
22
|
Schultze E, Collares T, Lucas CG, Seixas FK. Synergistic and additive effects of ATRA in combination with different anti-tumor compounds. Chem Biol Interact 2018; 285:69-75. [DOI: 10.1016/j.cbi.2018.02.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 01/26/2018] [Accepted: 02/15/2018] [Indexed: 12/12/2022]
|
23
|
Munchen TS, Sonego MS, de Souza D, Dornelles L, Seixas FK, Collares T, Piccoli BC, da Silva FD, da Rocha JBT, Quoos N, Rodrigues OED. New 3’‐Triazolyl‐5’‐aryl‐chalcogenothymidine: Synthesis and Anti‐oxidant and Antiproliferative Bladder Carcinoma (5637) Activity. ChemistrySelect 2018. [DOI: 10.1002/slct.201800156] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Taiana S. Munchen
- LabSelen-NanoBio – Departamento de QuímicaUniversidade Federal de Santa Maria RS - CEP 97105–900 – Brazil
| | - Mariana S. Sonego
- Programa de Pós-Graduação em Biotecnologia (PPGB)Biotecnologia/Centro de Desenvolvimento TecnológicoGrupo de Pesquisa em Oncologia Celular e Molecular (GPO)Laboratório de Biotecnologia do Câncer Universidade Federal de PelotasCampus Universitário s/n Capão do Leão-RS Brasil Cep: 96010–900
| | - Diego de Souza
- LabSelen-NanoBio – Departamento de QuímicaUniversidade Federal de Santa Maria RS - CEP 97105–900 – Brazil
| | - Luciano Dornelles
- LabSelen-NanoBio – Departamento de QuímicaUniversidade Federal de Santa Maria RS - CEP 97105–900 – Brazil
| | - Fabiana K. Seixas
- Programa de Pós-Graduação em Biotecnologia (PPGB)Biotecnologia/Centro de Desenvolvimento TecnológicoGrupo de Pesquisa em Oncologia Celular e Molecular (GPO)Laboratório de Biotecnologia do Câncer Universidade Federal de PelotasCampus Universitário s/n Capão do Leão-RS Brasil Cep: 96010–900
| | - Tiago Collares
- Programa de Pós-Graduação em Biotecnologia (PPGB)Biotecnologia/Centro de Desenvolvimento TecnológicoGrupo de Pesquisa em Oncologia Celular e Molecular (GPO)Laboratório de Biotecnologia do Câncer Universidade Federal de PelotasCampus Universitário s/n Capão do Leão-RS Brasil Cep: 96010–900
| | - Bruna C. Piccoli
- Departamento de Bioquímica e Biologia MolecularCentro de Ciências Naturais e ExatasUniversidade Federal de Santa Maria Santa Maria CEP 97105–900 Brazil
| | - Fernanda D'Ávila da Silva
- Departamento de Bioquímica e Biologia MolecularCentro de Ciências Naturais e ExatasUniversidade Federal de Santa Maria Santa Maria CEP 97105–900 Brazil
| | - João Batista T. da Rocha
- Departamento de Bioquímica e Biologia MolecularCentro de Ciências Naturais e ExatasUniversidade Federal de Santa Maria Santa Maria CEP 97105–900 Brazil
| | - Natália Quoos
- LabSelen-NanoBio – Departamento de QuímicaUniversidade Federal de Santa Maria RS - CEP 97105–900 – Brazil
| | - Oscar E. D. Rodrigues
- LabSelen-NanoBio – Departamento de QuímicaUniversidade Federal de Santa Maria RS - CEP 97105–900 – Brazil
| |
Collapse
|
24
|
Silveira TLR, Domingues WB, Remião MH, Santos L, Barreto B, Lessa IM, Varela Junior AS, Martins Pires D, Corcini C, Collares T, Seixas FK, Robaldo RB, Campos VF. Evaluation of Reference Genes to Analyze Gene Expression in Silverside Odontesthes humensis Under Different Environmental Conditions. Front Genet 2018; 9:75. [PMID: 29593778 PMCID: PMC5861154 DOI: 10.3389/fgene.2018.00075] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 02/19/2018] [Indexed: 01/12/2023] Open
Abstract
Some mammalian reference genes, which are widely used to normalize the qRT-PCR, could not be used for this purpose due to its high expression variation. The normalization with false reference genes leads to misinterpretation of results. The silversides (Odontesthes spp.) has been used as models for evolutionary, osmoregulatory and environmental pollution studies but, up to now, there are no studies about reference genes in any Odontesthes species. Furthermore, many studies on silversides have used reference genes without previous validations. Thus, present study aimed to was to clone and sequence potential reference genes, thereby identifying the best ones in Odontesthes humensis considering different tissues, ages and conditions. For this purpose, animals belonging to three ages (adults, juveniles, and immature) were exposed to control, Roundup®, and seawater treatments for 24 h. Blood samples were subjected to flow-cytometry and other collected tissues to RNA extraction; cDNA synthesis; molecular cloning; DNA sequencing; and qRT-PCR. The candidate genes tested included 18s, actb, ef1a, eif3g, gapdh, h3a, atp1a, and tuba. Gene expression results were analyzed using five algorithms that ranked the candidate genes. The flow-cytometry data showed that the environmental challenges could trigger a systemic response in the treated fish. Even during this systemic physiological disorder, the consensus analysis of gene expression revealed h3a to be the most stable gene expression when only the treatments were considered. On the other hand, tuba was the least stable gene in the control and gapdh was the least stable in both Roundup® and seawater groups. In conclusion, the consensus analyses of different tissues, ages, and treatments groups revealed that h3a is the most stable gene whereas gapdh and tuba are the least stable genes, even being considered two constitutive genes.
Collapse
Affiliation(s)
- Tony L R Silveira
- Laboratory of Structural Genomics, Biotechnology Graduate Program, Federal University of Pelotas, Pelotas, Brazil
| | - William B Domingues
- Laboratory of Structural Genomics, Biotechnology Graduate Program, Federal University of Pelotas, Pelotas, Brazil
| | - Mariana H Remião
- Laboratory of Structural Genomics, Biotechnology Graduate Program, Federal University of Pelotas, Pelotas, Brazil
| | - Lucas Santos
- Laboratory of Structural Genomics, Biotechnology Graduate Program, Federal University of Pelotas, Pelotas, Brazil
| | - Bruna Barreto
- Laboratory of Structural Genomics, Biotechnology Graduate Program, Federal University of Pelotas, Pelotas, Brazil
| | - Ingrid M Lessa
- Laboratory of Structural Genomics, Biotechnology Graduate Program, Federal University of Pelotas, Pelotas, Brazil
| | | | | | - Carine Corcini
- Veterinary Faculty, Federal University of Pelotas, Pelotas, Brazil
| | - Tiago Collares
- Laboratory of Cancer Biotechnology, Biotechnology Graduate Program, Federal University of Pelotas, Pelotas, Brazil
| | - Fabiana K Seixas
- Laboratory of Cancer Biotechnology, Biotechnology Graduate Program, Federal University of Pelotas, Pelotas, Brazil
| | - Ricardo B Robaldo
- Laboratory of Physiology, Institute of Biology, Federal University of Pelotas, Pelotas, Brazil
| | - Vinicius F Campos
- Laboratory of Structural Genomics, Biotechnology Graduate Program, Federal University of Pelotas, Pelotas, Brazil
| |
Collapse
|
25
|
Silveira TLR, Martins GB, Domingues WB, Remião MH, Barreto BF, Lessa IM, Santos L, Pinhal D, Dellagostin OA, Seixas FK, Collares T, Robaldo RB, Campos VF. Gene and Blood Analysis Reveal That Transfer from Brackish Water to Freshwater Is More Stressful to the Silverside Odontesthes humensis. Front Genet 2018; 9:28. [PMID: 29541090 PMCID: PMC5836595 DOI: 10.3389/fgene.2018.00028] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 01/22/2018] [Indexed: 11/13/2022] Open
Abstract
Silversides are fish that inhabit marine coastal waters, coastal lagoons, and estuarine regions in southern South America. The freshwater (FW) silversides have the ability to tolerate salinity variations. Odontesthes humensis have similar habitats and biological characteristics of congeneric O. bonariensis, the most studied silverside species and with great economic importance. Studies revealed that O. bonariensis is not fully adapted to FW, despite inhabiting hyposmotic environments in nature. However, there is little information about stressful environments for cultivation of silverside O. humensis. Thus, the aim of this study was to evaluate the stress and osmoregulation responses triggered by the osmotic transfers on silverside O. humensis. Silversides were acclimated to FW (0 ppt) and to brackish water (BW, 10 ppt) and then they were exposed to opposite salinity treatment. Silverside gills and blood were sampled on pre-transfer (D0) and 1, 7, and 15 days (D1, D7, and D15) after changes in environmental salinity, the expression levels of genes atp1a3a, slc12a2b, kcnh1, and hspa1a were determined by quantitative reverse transcription-PCR for evaluation of osmoregulatory and stress responses. Furthermore, glycemia, hematocrit, and osmolality were also evaluated. The expression of atp1a3a was up- and down-regulated at D1 after the FW-BW and BW-FW transfers, respectively. Slc12a2b was up-regulated after FW-BW transfer. Similarly, kcnh1 and hspa1a were up-regulated at D1 after the BW-FW transfer. O. humensis blood osmolality decreased after the exposure to FW. It remained stable after exposure to BW, indicating an efficient hyposmoregulation. The glycemia had a peak at D1 after BW-FW transfer. No changes were observed in hematocrit. The return to the pre-transfer levels at D7 after the significant increases in responses of almost all evaluated molecular and blood parameters indicated that this period is enough for acclimation to the experimental conditions. In conclusion, our results suggest that BW-FW transfer is more stressful to O. humensis than FW-BW transfer and the physiology of O. humensis is only partially adapted to FW.
Collapse
Affiliation(s)
- Tony L. R. Silveira
- Laboratory of Structural Genomics, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Gabriel B. Martins
- Laboratory of Physiology, Institute of Biology, Federal University of Pelotas, Pelotas, Brazil
| | - William B. Domingues
- Laboratory of Structural Genomics, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Mariana H. Remião
- Laboratory of Cancer Biotechnology, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Bruna F. Barreto
- Laboratory of Structural Genomics, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Ingrid M. Lessa
- Laboratory of Structural Genomics, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Lucas Santos
- Laboratory of Structural Genomics, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Danillo Pinhal
- Genomics and Molecular Evolution Laboratory, Department of Genetics, Institute of Biosciences of Botucatu, São Paulo State University, Botucatu, Brazil
| | - Odir A. Dellagostin
- Laboratory of Vaccinology, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Fabiana K. Seixas
- Laboratory of Cancer Biotechnology, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Tiago Collares
- Laboratory of Cancer Biotechnology, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Ricardo B. Robaldo
- Laboratory of Physiology, Institute of Biology, Federal University of Pelotas, Pelotas, Brazil
| | - Vinicius F. Campos
- Laboratory of Structural Genomics, Technological Development Center, Federal University of Pelotas, Pelotas, Brazil
| |
Collapse
|
26
|
Remião MH, Segatto NV, Pohlmann A, Guterres SS, Seixas FK, Collares T. The Potential of Nanotechnology in Medically Assisted Reproduction. Front Pharmacol 2018; 8:994. [PMID: 29375388 PMCID: PMC5768623 DOI: 10.3389/fphar.2017.00994] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 12/26/2017] [Indexed: 12/16/2022] Open
Abstract
Reproductive medicine is a field of science which searches for new alternatives not only to help couples achieve pregnancy and preserve fertility, but also to diagnose and treat diseases which can impair the normal operation of the reproductive tract. Assisted reproductive technology (ART) is a set of methodologies applied to cases related to infertility. Despite being highly practiced worldwide, ART presents some challenges, which still require special attention. Nanotechnology, as a tool for reproductive medicine, has been considered to help overcome some of those impairments. Over recent years, nanotechnology approaches applied to reproductive medicine have provided strategies to improve diagnosis and increase specificity and sensitivity. For in vitro embryo production, studies in non-human models have been used to deliver molecules to gametes and embryos. The exploration of nanotechnology for ART would bring great advances. In this way, experiments in non-human models to test the development and safety of new protocols using nanomaterials are very important for informing potential future employment in humans. This paper presents recent developments in nanotechnology regarding impairments still faced by ART: ovary stimulation, multiple pregnancy, and genetic disorders. New perspectives for further use of nanotechnology in reproductive medicine studies are also discussed.
Collapse
Affiliation(s)
- Mariana H Remião
- Biotechnology Graduate Program, Molecular and Cellular Oncology Research Group, Laboratory of Cancer Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Natalia V Segatto
- Biotechnology Graduate Program, Molecular and Cellular Oncology Research Group, Laboratory of Cancer Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Adriana Pohlmann
- Post-graduation Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Silvia S Guterres
- Post-graduation Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Fabiana K Seixas
- Biotechnology Graduate Program, Molecular and Cellular Oncology Research Group, Laboratory of Cancer Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Tiago Collares
- Biotechnology Graduate Program, Molecular and Cellular Oncology Research Group, Laboratory of Cancer Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
| |
Collapse
|
27
|
Segatto NV, Remião MH, Schachtschneider KM, Seixas FK, Schook LB, Collares T. The Oncopig Cancer Model as a Complementary Tool for Phenotypic Drug Discovery. Front Pharmacol 2017; 8:894. [PMID: 29259556 PMCID: PMC5723300 DOI: 10.3389/fphar.2017.00894] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 09/28/2017] [Accepted: 11/22/2017] [Indexed: 12/14/2022] Open
Abstract
The screening of potential therapeutic compounds using phenotypic drug discovery (PDD) is being embraced once again by researchers and pharmaceutical companies as an approach to enhance the development of new effective therapeutics. Before the genomics and molecular biology era and the consecutive emergence of targeted-drug discovery approaches, PDD was the most common platform used for drug discovery. PDD, also known as phenotypic screening, consists of screening potential compounds in either in vitro cellular or in vivo animal models to identify compounds resulting in a desirable phenotypic change. Using this approach, the biological targets of the compounds are not taken into consideration. Suitable animal models are crucial for the continued validation and discovery of new drugs, as compounds displaying promising results in phenotypic in vitro cell-based and in vivo small animal model screenings often fail in clinical trials. Indeed, this is mainly a result of differential anatomy, physiology, metabolism, immunology, and genetics between humans and currently used pre-clinical small animal models. In contrast, pigs are more predictive of therapeutic treatment outcomes in humans than rodents. In addition, pigs provide an ideal platform to study cancer due to their similarities with humans at the anatomical, physiological, metabolic, and genetic levels. Here we provide a mini-review on the reemergence of PDD in drug development, highlighting the potential of porcine cancer models for improving pre-clinical drug discovery and testing. We also present precision medicine based genetically defined swine cancer models developed to date and their potential as biomedical models.
Collapse
Affiliation(s)
- Natalia V Segatto
- Biotechnology Graduate Program, Molecular and Cellular Oncology Research Group, Laboratory of Cancer Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Mariana H Remião
- Biotechnology Graduate Program, Molecular and Cellular Oncology Research Group, Laboratory of Cancer Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
| | | | - Fabiana K Seixas
- Biotechnology Graduate Program, Molecular and Cellular Oncology Research Group, Laboratory of Cancer Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Lawrence B Schook
- Department of Radiology, University of Illinois at Chicago, Chicago, IL, United States.,Department of Animal Sciences, University of Illinois at Urbana-Champaign, Champaign, IL, United States
| | - Tiago Collares
- Biotechnology Graduate Program, Molecular and Cellular Oncology Research Group, Laboratory of Cancer Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
| |
Collapse
|
28
|
Fonseca SF, Padilha NB, Thurow S, Roehrs JA, Savegnago L, de Souza MN, Fronza MG, Collares T, Buss J, Seixas FK, Alves D, Lenardão EJ. Ultrasound-promoted copper-catalyzed synthesis of bis-arylselanyl chrysin derivatives with boosted antioxidant and anticancer activities. Ultrason Sonochem 2017; 39:827-836. [PMID: 28733012 DOI: 10.1016/j.ultsonch.2017.06.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Revised: 06/08/2017] [Accepted: 06/09/2017] [Indexed: 05/21/2023]
Abstract
Herein we report the use of ultrasonic irradiation (US) in the synthesis of six new semi-synthetic selenium-containing chrysin derivatives by a simple and effective methodology utilizing CuI as catalyst, in good to excellent yields (60-89%). It was observed that US accelerates the reaction compared to conventional heating with excellent selectivity for diselenylated products. Compounds were tested for their antioxidant and anticancer activities in vitro and it was observed that the presence of selenium in the A-ring of chrysin enhanced both antioxidant and anticancer properties. Semi-synthetic 6,8-bis(o-tolylselanyl)-chrysin 3b has the best radical scavenging activity of DPPH (Imax: 39.79µM) and ABTS+ (IC50: 6.5µM) radicals. Similarly, in the Reactive Species (RS) assay, 3b showed high antioxidant activity in mice cortex (IC50: 5.67µM), whereas 6,8-bis(p-anisoylselanyl)-chrysin 3c was the more active in the hippocampus (IC50: 5.63µM). The Se-chrysins were effective in prevention of lipid peroxidation, highlighting 6,8-bis(p-fluorophenylselanyl)-chrysin 3d in cortex (IC50: 0.54µM) and 3b in hippocampus (IC50: 0.27µM). In addition, 3d was effective in inhibiting human lung adenocarcinoma (A549) cells growth, with a IC50 of 19.9µM after 72h of treatment, while 6,8-bis(p-anisoylselanyl)-chrysin 3c presented the higher antiproliferative activity after 48h of treatment (IC50 of 41.4µM).
Collapse
Affiliation(s)
- Sergio F Fonseca
- Laboratório de Síntese Orgânica Limpa - LASOL, Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Nathalia B Padilha
- Laboratório de Síntese Orgânica Limpa - LASOL, Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Samuel Thurow
- Laboratório de Síntese Orgânica Limpa - LASOL, Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Juliano A Roehrs
- Laboratório de Síntese Orgânica Limpa - LASOL, Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Lucielli Savegnago
- Grupo de Pesquisa em Neurobiotecnologia - GPN, Universidade Federal de Pelotas - UFPel, 96010-900 Pelotas, RS, Brazil
| | - Maurice N de Souza
- Grupo de Pesquisa em Neurobiotecnologia - GPN, Universidade Federal de Pelotas - UFPel, 96010-900 Pelotas, RS, Brazil
| | - Mariana G Fronza
- Grupo de Pesquisa em Neurobiotecnologia - GPN, Universidade Federal de Pelotas - UFPel, 96010-900 Pelotas, RS, Brazil
| | - Tiago Collares
- Laboratório de Biotecnologia do Câncer, Universidade Federal de Pelotas - UFPel, 96010-900 Pelotas, RS, Brazil
| | - Julieti Buss
- Laboratório de Biotecnologia do Câncer, Universidade Federal de Pelotas - UFPel, 96010-900 Pelotas, RS, Brazil
| | - Fabiana K Seixas
- Laboratório de Biotecnologia do Câncer, Universidade Federal de Pelotas - UFPel, 96010-900 Pelotas, RS, Brazil
| | - Diego Alves
- Laboratório de Síntese Orgânica Limpa - LASOL, Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Eder J Lenardão
- Laboratório de Síntese Orgânica Limpa - LASOL, Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil.
| |
Collapse
|
29
|
Casaril AM, Domingues M, Fronza M, Vieira B, Begnini K, Lenardão EJ, Seixas FK, Collares T, Nogueira CW, Savegnago L. Antidepressant-like effect of a new selenium-containing compound is accompanied by a reduction of neuroinflammation and oxidative stress in lipopolysaccharide-challenged mice. J Psychopharmacol 2017; 31:1263-1273. [PMID: 28661258 DOI: 10.1177/0269881117711713] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Organoselenium compounds and indoles have gained attention due to their wide range of pharmacological properties. Depression is a recurrent and disabling psychiatric illness and current evidences support that oxidative stress and neuroinflammation are mechanisms underlying the pathophysiology of this psychiatric condition. Here, we evaluated the effect of 3-((4-chlorophenyl)selanyl)-1-methyl-1H-indole (CMI) in lipopolysaccharide (LPS)-induced depressive-like behaviour, neuroinflammation and oxidative stress in male mice. CMI pre-treatment (20 and 50 mg/kg, intragastrically) significantly attenuated LPS (0.83 mg/kg, intraperitoneally)-induced depressive-like behaviour in mice by reducing the immobility time in the tail suspension test (TST) and forced swimming test (FST). CMI pre-treatment ameliorated LPS-induced neuroinflammation by reducing the levels of interleukin (IL)-1β, IL-4 and IL-6 in the hippocampus and prefrontal cortex, as well as markers of oxidative damage. Additionally, we investigated the toxicological effects of CMI (200 mg/kg, i.g.) in the liver, kidney and brain through determination of the activity of aspartate aminotransferase (AST), alanine aminotransferase (ALT), δ-aminolevulinate dehydratase (δ-ALA-D) and creatinine levels. These biomarkers were not modified, indicating the possible absence of neuro-, hepato- and nephrotoxic effects. Our results suggest that CMI could be a therapeutic approach for the treatment of depression and other neuropsychiatric disorders associated with inflammation and oxidative stress.
Collapse
Affiliation(s)
- Angela M Casaril
- 1 Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Neurobiotecnologia, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Micaela Domingues
- 1 Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Neurobiotecnologia, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Mariana Fronza
- 1 Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Neurobiotecnologia, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Beatriz Vieira
- 2 Programa de Pós-Graduação em Química (PPGQ), Laboratório de Síntese Orgânica Limpa, Química/Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Karine Begnini
- 3 Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Laboratório de Genômica Funcional, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Eder J Lenardão
- 2 Programa de Pós-Graduação em Química (PPGQ), Laboratório de Síntese Orgânica Limpa, Química/Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Fabiana K Seixas
- 3 Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Laboratório de Genômica Funcional, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Tiago Collares
- 3 Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Laboratório de Genômica Funcional, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Cristina W Nogueira
- 4 Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Lucielli Savegnago
- 1 Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Neurobiotecnologia, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| |
Collapse
|
30
|
da Rosa RM, Piccoli BC, da Silva FD, Dornelles L, Rocha JBT, Sonego MS, Begnini KR, Collares T, Seixas FK, Rodrigues OED. Synthesis, antioxidant and antitumoral activities of 5'-arylchalcogeno-3-aminothymidine (ACAT) derivatives. Medchemcomm 2017; 8:408-414. [PMID: 30108758 PMCID: PMC6071852 DOI: 10.1039/c6md00640j] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 12/16/2016] [Indexed: 12/11/2022]
Abstract
This article presents the preparation and in vitro biological activities of new 5'-arylchalcogeno-3-aminothymidine derivatives as antioxidants (inhibition of lipid peroxidation, scavenging of the free radical 2,2-diphenylpicrylhydrazyl and demonstration of a thiol peroxidase-like activity) as well as antitumoral agents against bladder carcinoma 5637. The chalcogeno-aminothymidines presented prominent activity in the tests for both biological properties, showing a direct relation with the chalcogenium atom.
Collapse
Affiliation(s)
- Raquel Mello da Rosa
- LabSelen-NanoBio - Departamento de Química , Universidade Federal de Santa Maria , Santa Maria , Brazil .
| | - Bruna Candia Piccoli
- Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Fernanda D'Avila da Silva
- Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Luciano Dornelles
- LabSelen-NanoBio - Departamento de Química , Universidade Federal de Santa Maria , Santa Maria , Brazil .
| | - João B T Rocha
- Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Mariana Souza Sonego
- Molecular and Cellular Oncology Group , Graduate Program in Biotechnology , Universidade Federal de Pelotas , Pelotas , Brazil
| | - Karine Rech Begnini
- Molecular and Cellular Oncology Group , Graduate Program in Biotechnology , Universidade Federal de Pelotas , Pelotas , Brazil
| | - Tiago Collares
- Molecular and Cellular Oncology Group , Graduate Program in Biotechnology , Universidade Federal de Pelotas , Pelotas , Brazil
| | - Fabiana K Seixas
- Molecular and Cellular Oncology Group , Graduate Program in Biotechnology , Universidade Federal de Pelotas , Pelotas , Brazil
| | - Oscar E D Rodrigues
- LabSelen-NanoBio - Departamento de Química , Universidade Federal de Santa Maria , Santa Maria , Brazil .
| |
Collapse
|
31
|
Oliveira TL, Bacelo KL, Schuch RA, Seixas FK, Collares T, Rodrigues OE, Vargas J, Nascimento ROD, Dellagostin OA, Hartwig DD. Immune response in hamsters immunised with a recombinant fragment of LigA from Leptospira interrogans, associated with carrier molecules. Mem Inst Oswaldo Cruz 2016; 111:712-716. [PMID: 27759768 PMCID: PMC5125051 DOI: 10.1590/0074-02760160214] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [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: 05/19/2016] [Accepted: 07/29/2016] [Indexed: 12/11/2022] Open
Abstract
Immunisation with the C-terminal region of leptospiral immunoglobulin-like A protein
(LigANI) has shown promising results against leptospirosis. We evaluated the humoral
immune response and protection induced by LigANI associated with carboxyl
multi-walled carbon nanotubes (COOH-MWCNTs), CpG oligodeoxynucleotides (CpG ODNs), or
Alhydrogel. Animals immunised with CpG ODNs were unable to develop a humoral immune
response, whereas immunisation with LigANI and COOH-MWCNTs produced a high level of
IgG antibodies, similar to that with LigANI and Alhydrogel, but it was not
protective. The use of carbon nanotubes as an adjuvant in subunit vaccines against
leptospirosis is a novel approach for improving specific IgG production.
Collapse
Affiliation(s)
- Thaís L Oliveira
- Universidade Federal de Pelotas, Centro de Desenvolvimento Tecnológico, Programa de Pós-Graduação em Biotecnologia, Núcleo de Biotecnologia, Pelotas, RS, Brasil
| | - Kátia L Bacelo
- Universidade Federal de Pelotas, Centro de Desenvolvimento Tecnológico, Programa de Pós-Graduação em Biotecnologia, Núcleo de Biotecnologia, Pelotas, RS, Brasil
| | - Rodrigo A Schuch
- Universidade Federal de Pelotas, Centro de Desenvolvimento Tecnológico, Programa de Pós-Graduação em Biotecnologia, Núcleo de Biotecnologia, Pelotas, RS, Brasil
| | - Fabiana K Seixas
- Universidade Federal de Pelotas, Centro de Desenvolvimento Tecnológico, Programa de Pós-Graduação em Biotecnologia, Núcleo de Biotecnologia, Pelotas, RS, Brasil
| | - Tiago Collares
- Universidade Federal de Pelotas, Centro de Desenvolvimento Tecnológico, Programa de Pós-Graduação em Biotecnologia, Núcleo de Biotecnologia, Pelotas, RS, Brasil
| | - Oscar Ed Rodrigues
- Universidade Federal de Santa Maria, Departamento de Química, Santa Maria, RS, Brasil
| | - Josimar Vargas
- Universidade Federal de Santa Maria, Departamento de Química, Santa Maria, RS, Brasil
| | | | - Odir A Dellagostin
- Universidade Federal de Pelotas, Centro de Desenvolvimento Tecnológico, Programa de Pós-Graduação em Biotecnologia, Núcleo de Biotecnologia, Pelotas, RS, Brasil
| | - Daiane D Hartwig
- Universidade Federal de Pelotas, Centro de Desenvolvimento Tecnológico, Programa de Pós-Graduação em Biotecnologia, Núcleo de Biotecnologia, Pelotas, RS, Brasil.,Universidade Federal de Pelotas, Instituto de Biologia, Departamento de Microbiologia e Parasitologia, Pelotas, RS, Brasil
| |
Collapse
|
32
|
Schook LB, Rund L, Begnini KR, Remião MH, Seixas FK, Collares T. Emerging Technologies to Create Inducible and Genetically Defined Porcine Cancer Models. Front Genet 2016; 7:28. [PMID: 26973698 PMCID: PMC4770043 DOI: 10.3389/fgene.2016.00028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [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: 11/03/2015] [Accepted: 02/13/2016] [Indexed: 12/26/2022] Open
Abstract
There is an emerging need for new animal models that address unmet translational cancer research requirements. Transgenic porcine models provide an exceptional opportunity due to their genetic, anatomic, and physiological similarities with humans. Due to recent advances in the sequencing of domestic animal genomes and the development of new organism cloning technologies, it is now very feasible to utilize pigs as a malleable species, with similar anatomic and physiological features with humans, in which to develop cancer models. In this review, we discuss genetic modification technologies successfully used to produce porcine biomedical models, in particular the Cre-loxP System as well as major advances and perspectives the CRISPR/Cas9 System. Recent advancements in porcine tumor modeling and genome editing will bring porcine models to the forefront of translational cancer research.
Collapse
Affiliation(s)
- Lawrence B Schook
- University of Illinois Cancer Center, University of Illinois at ChicagoChicago, IL, USA; Department of Animal Sciences, University of Illinois at Urbana-ChampaignChampaign, IL, USA
| | - Laurie Rund
- Department of Animal Sciences, University of Illinois at Urbana-Champaign Champaign, IL, USA
| | - Karine R Begnini
- Postgraduate Program in Biotechnology, Biotechnology Unit, Technology Development Center, Federal University of Pelotas Pelotas, Brazil
| | - Mariana H Remião
- Postgraduate Program in Biotechnology, Biotechnology Unit, Technology Development Center, Federal University of Pelotas Pelotas, Brazil
| | - Fabiana K Seixas
- Postgraduate Program in Biotechnology, Biotechnology Unit, Technology Development Center, Federal University of Pelotas Pelotas, Brazil
| | - Tiago Collares
- Postgraduate Program in Biotechnology, Biotechnology Unit, Technology Development Center, Federal University of Pelotas Pelotas, Brazil
| |
Collapse
|
33
|
Schook LB, Collares TV, Darfour-Oduro KA, De AK, Rund LA, Schachtschneider KM, Seixas FK. Unraveling the swine genome: implications for human health. Annu Rev Anim Biosci 2016; 3:219-44. [PMID: 25689318 DOI: 10.1146/annurev-animal-022114-110815] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The pig was first used in biomedical research in ancient Greece and over the past few decades has quickly grown into an important biomedical research tool. Pigs have genetic and physiological traits similar to humans, which make them one of the most useful and versatile animal models. Owing to these similarities, data generated from porcine models are more likely to lead to viable human treatments than those from murine work. In addition, the similarity in size and physiology to humans allows pigs to be used for many experimental approaches not feasible in mice. Research areas that employ pigs range from neonatal development to translational models for cancer therapy. Increasing numbers of porcine models are being developed since the release of the swine genome sequence, and the development of additional porcine genomic and epigenetic resources will further their use in biomedical research.
Collapse
Affiliation(s)
- Lawrence B Schook
- Department of Animal Sciences, University of Illinois, Urbana, Illinois 61801; , , , ,
| | | | | | | | | | | | | |
Collapse
|
34
|
Hartwig DD, Bacelo KL, Oliveira TL, Schuch R, Seixas FK, Collares T, Rodrigues O, Hartleben CP, Dellagostin OA. The use of halloysite clay and carboxyl-functionalised multi-walled carbon nanotubes for recombinant LipL32 antigen delivery enhanced the IgG response. Mem Inst Oswaldo Cruz 2015; 110:134-7. [PMID: 25742273 PMCID: PMC4371227 DOI: 10.1590/0074-02760140276] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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: 08/01/2014] [Accepted: 12/08/2014] [Indexed: 11/22/2022] Open
Abstract
We studied the feasibility of using halloysite clay nanotubes (HNTs) and
carboxyl-functionalised multi-walled carbon nanotubes (COOH-MWCNTs) as antigen
carriers to improve immune responses against a recombinant LipL32 protein (rLipL32).
Immunisation using the HNTs or COOH-MWCNTs significantly increased the
rLipL32-specific IgG antibody titres (p < 0.05) of Golden Syrian hamsters. None of
the vaccines tested conferred protection against a challenge using a virulent
Leptospira interrogans strain. These results demonstrated that nanotubes can be used
as antigen carriers for delivery in hosts and the induction of a humoral immune
response against purified leptospiral antigens used in subunit vaccine
preparations.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Oscar Rodrigues
- Departamento de Química, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | | | | |
Collapse
|
35
|
Collares T, Seixas FK, Rund LA, Hu W, Rodrigues FM, Liang Y, Singh K, Counter CM, Schook LB. Abstract A21: Transgenic Onco-Pig cells mimic human cancer. Mol Cancer Res 2014. [DOI: 10.1158/1557-3125.modorg-a21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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
In order to take full advantage of the potential for new therapeutics and biotechnology applications, there is an urgent need for new animal models supporting cancer research. Pigs share many genetic and physiological similarities with humans. Our previous studies have shown that overexpression of several human oncogenes led to tumor development in pigs. Transgenic pigs were engineered to contain oncogenic KRASG12D and dominant-negative p53R167H, downstream of a LoxP-polyA (STOP)-LoxP sequence (LSL) and CAG promoter, such that exposure to Cre-recombinase induces their expression in desired tissues. Fibroblast cell strains generated from four such clones were infected with an adenovirus vector (Ad-Cre-GFP) encoding Cre recombinase and GFP protein or control vector (Ad-GFP) with GFP alone. Cells were analyzed for cell migration rates, cell proliferation, growth in soft agar, tumor development in immunodeficient mice, histopathological and characterization tumor and RT-PCR from tumor. All four cell strains expressed KRASG12D and p53R167H mRNA, transformed phenotypes such as increased cell migration rates, increase cell proliferation, and growth in soft agar. Migration rates in a wound assay were significantly different (184 vs 67 at 24 hr (p ≤ 0.01). CFSE assay determined that CRE cells divided twice as many times as control GFP cells in a 73 hr period (p ≤ 0.01). Additionally, GFP cells were unable to form colonies in soft agar, while each of the CRE cell lines formed over 100 colonies (p ≤ 0.01). CRE cell lines produced tumors in the mice (13/14) while no tumors developed from the GFP lines. Histopathological analyses revealed the tumors to be sarcomas, which were non-encapsulated, densely cellular and locally infiltrative with marked cellular and nuclear pleomorphism. Genetic analysis of tumor DNA showed the presence of CAG, KRASG12D and p53R167H transgene sequences. RT-PCR of tumor cDNA confirmed expression of the oncogenic KRASG12D and dominant-negative p53R167H mRNA from each tumor; therefore, demonstrating that induction of the transgenes in these porcine cells triggered a tumorigenic phenotype. Our next step will be to monitor tumor incidence following site-specific transgene induction in these Onco-pigs that can then be challenged with new anticancer therapies and interventional strategies.
Citation Format: Tiago Collares, Fabiana K. Seixas, Laurie A. Rund, Wenping Hu, Fernanda M. Rodrigues, Ying Liang, Kuldeep Singh, Cristopher M. Counter, Lawrence B. Schook. Transgenic Onco-Pig cells mimic human cancer. [abstract]. In: Proceedings of the AACR Special Conference: The Translational Impact of Model Organisms in Cancer; Nov 5-8, 2013; San Diego, CA. Philadelphia (PA): AACR; Mol Cancer Res 2014;12(11 Suppl):Abstract nr A21.
Collapse
Affiliation(s)
- Tiago Collares
- 1University of Illinois, Urbana, IL,
- 5Federal University of Pelotas, Pelotas, RS, Brazil,
| | - Fabiana K. Seixas
- 1University of Illinois, Urbana, IL,
- 5Federal University of Pelotas, Pelotas, RS, Brazil,
| | | | - Wenping Hu
- 1University of Illinois, Urbana, IL,
- 6China Agricultural University, Beijing, China
| | | | | | | | | | | |
Collapse
|
36
|
Entiauspe LG, Silveira M, Nunes EM, Basgalupp SP, Stauffert D, Dellagostin OA, Collares T, Seixas FK. High incidence of oncogenic HPV genotypes found in women from Southern Brazil. Braz J Microbiol 2014; 45:689-94. [PMID: 25242959 PMCID: PMC4166300 DOI: 10.1590/s1517-83822014005000047] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [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: 03/25/2013] [Accepted: 09/09/2013] [Indexed: 11/26/2022] Open
Abstract
Oncogenic HPV genotypes are strongly associated with premalignant and malignant cervical lesion. The purpose was to determine human papillomavirus (HPV) prevalence and genotypes, and to estimate cervical cancer risk factor associations. Cervical samples were obtained from 251 women seeking gynecological care at the Pelotas School of Medicine Clinic. This is a cross-sectional study. HPV-DNA was amplified by nested-PCR using MY09/11 and GP5/6 primers, and the sequencing was used for genotyping. Sociodemographic and behavioral risk factors were obtained by closed questionnaire, and its relationship to HPV infection prevalence were analyzed. Statistical analyses were performed using SPSS 16.0 software, and differences were considered significant at p < 0.05. As results, the prevalence of HPV infection was 29.9%. The most frequent genotype was HPV-16 (41.3%), followed by HPV-18 (17.3%), and HPV-33 (9.3%). Others nine HPV genotypes were also found. On this population, prevalence of oncogenic HPV genotypes was high, but does not seem to confer relationship with the risk factors investigated. Future investigations in larger populations are necessary, for the proposition of more appropriated monitoring strategies and treatment according to the Brazilian health service reality, as well as patients.
Collapse
Affiliation(s)
- Ludmila G Entiauspe
- Grupo de Pesquisa em Oncologia Molecular e Celular Centro de Desenvolvimento Tecnológico Universidade Federal de PelotasRS Brasil Grupo de Pesquisa em Oncologia Molecular e Celular, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, RS, Brasil. ; Programa de Pós-Graduação em Biotecnologia CDTec Universidade Federal de Pelotas PelotasRS Brasil Programa de Pós-Graduação em Biotecnologia, CDTec, Universidade Federal de Pelotas, Pelotas, RS, Brasil
| | - Mariângela Silveira
- Programa de Pós-Graduação em Epidemiologia Universidade Federal de Pelotas PelotasRS Brasil Programa de Pós-Graduação em Epidemiologia, Universidade Federal de Pelotas, Pelotas, RS, Brasil
| | - Emily M Nunes
- Grupo de Pesquisa em Oncologia Molecular e Celular Centro de Desenvolvimento Tecnológico Universidade Federal de PelotasRS Brasil Grupo de Pesquisa em Oncologia Molecular e Celular, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, RS, Brasil
| | - Suélen P Basgalupp
- Grupo de Pesquisa em Oncologia Molecular e Celular Centro de Desenvolvimento Tecnológico Universidade Federal de PelotasRS Brasil Grupo de Pesquisa em Oncologia Molecular e Celular, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, RS, Brasil
| | - Dulce Stauffert
- Laboratório da Faculdade de Medicina Universidade Federal de Pelotas PelotasRS Brasil Laboratório da Faculdade de Medicina, Universidade Federal de Pelotas, Pelotas, RS, Brasil
| | - Odir A Dellagostin
- Grupo de Pesquisa em Oncologia Molecular e Celular Centro de Desenvolvimento Tecnológico Universidade Federal de PelotasRS Brasil Grupo de Pesquisa em Oncologia Molecular e Celular, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, RS, Brasil. ; Programa de Pós-Graduação em Biotecnologia CDTec Universidade Federal de Pelotas PelotasRS Brasil Programa de Pós-Graduação em Biotecnologia, CDTec, Universidade Federal de Pelotas, Pelotas, RS, Brasil
| | - Tiago Collares
- Grupo de Pesquisa em Oncologia Molecular e Celular Centro de Desenvolvimento Tecnológico Universidade Federal de PelotasRS Brasil Grupo de Pesquisa em Oncologia Molecular e Celular, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, RS, Brasil. ; Programa de Pós-Graduação em Biotecnologia CDTec Universidade Federal de Pelotas PelotasRS Brasil Programa de Pós-Graduação em Biotecnologia, CDTec, Universidade Federal de Pelotas, Pelotas, RS, Brasil
| | - Fabiana K Seixas
- Grupo de Pesquisa em Oncologia Molecular e Celular Centro de Desenvolvimento Tecnológico Universidade Federal de PelotasRS Brasil Grupo de Pesquisa em Oncologia Molecular e Celular, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, RS, Brasil. ; Programa de Pós-Graduação em Biotecnologia CDTec Universidade Federal de Pelotas PelotasRS Brasil Programa de Pós-Graduação em Biotecnologia, CDTec, Universidade Federal de Pelotas, Pelotas, RS, Brasil
| |
Collapse
|
37
|
Yurgel VC, Oliveira CP, Begnini KR, Schultze E, Thurow HS, Leon PMM, Dellagostin OA, Campos VF, Beck RCR, Guterres SS, Collares T, Pohlmann AR, Seixas FK. Methotrexate diethyl ester-loaded lipid-core nanocapsules in aqueous solution increased antineoplastic effects in resistant breast cancer cell line. Int J Nanomedicine 2014; 9:1583-91. [PMID: 24741306 PMCID: PMC3970944 DOI: 10.2147/ijn.s56506] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Breast cancer is the most frequent cancer affecting women. Methotrexate (MTX) is an antimetabolic drug that remains important in the treatment of breast cancer. Its efficacy is compromised by resistance in cancer cells that occurs through a variety of mechanisms. This study evaluated apoptotic cell death and cell cycle arrest induced by an MTX derivative (MTX diethyl ester [MTX(OEt)2]) and MTX(OEt)2-loaded lipid-core nanocapsules in two MTX-resistant breast adenocarcinoma cell lines, MCF-7 and MDA-MB-231. The formulations prepared presented adequate granulometric profile. The treatment responses were evaluated through flow cytometry. Relying on the mechanism of resistance, we observed different responses between cell lines. For MCF-7 cells, MTX(OEt)2 solution and MTX(OEt)2-loaded lipid-core nanocapsules presented significantly higher apoptotic rates than untreated cells and cells incubated with unloaded lipid-core nanocapsules. For MDA-MB-231 cells, MTX(OEt)2-loaded lipid-core nanocapsules were significantly more efficient in inducing apoptosis than the solution of the free drug. S-phase cell cycle arrest was induced only by MTX(OEt)2 solution. The drug nanoencapsulation improved apoptosis induction for the cell line that presents MTX resistance by lack of transport receptors.
Collapse
Affiliation(s)
- Virginia C Yurgel
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Laboratório de Genômica Funcional, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Catiuscia P Oliveira
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Karine R Begnini
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Laboratório de Genômica Funcional, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Eduarda Schultze
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Laboratório de Genômica Funcional, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Helena S Thurow
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Laboratório de Genômica Funcional, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Priscila M M Leon
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Laboratório de Genômica Funcional, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Odir A Dellagostin
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Laboratório de Genômica Funcional, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Vinicius F Campos
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Laboratório de Genômica Funcional, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Ruy C R Beck
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Silvia S Guterres
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Tiago Collares
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Laboratório de Genômica Funcional, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Adriana R Pohlmann
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil ; Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil ; Centro de Nanociência e Nanotecnologia, CNANO-UFRGS, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Fabiana K Seixas
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Laboratório de Genômica Funcional, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| |
Collapse
|
38
|
Hartwig DD, Bacelo KL, Oliveira PDD, Oliveira TL, Seixas FK, Amaral MG, Hartleben CP, McBride AJA, Dellagostin OA. Mannosylated LigANI produced in Pichia pastoris protects hamsters against leptospirosis. Curr Microbiol 2013; 68:524-30. [PMID: 24343176 DOI: 10.1007/s00284-013-0505-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 10/27/2013] [Indexed: 01/12/2023]
Abstract
The C-terminal region of the Leptospiral immunoglobulin-like A protein (LigA) contains six carboxy-terminal Ig-like repeat domains (LigANI). Subunit vaccine preparations based on recombinant LigANI produced in Escherichia coli, are promising vaccine candidates, albeit with variable efficacy. In the present study, LigANI was expressed in the methylotrophic yeast Pichia pastoris using a 12 L bioreactor to produce mannosylated LigANI (mLigANI) for use in a vaccine preparation against leptospirosis. Hamsters immunized with a mLigANI vaccine preparation produced a significant IgG antibody response (P < 0.001) and were protected (83.3 %; P < 0.001) against lethal challenge with 36× LD50 of a virulent strain of L. interrogans serovar Copenhageni. A vaccine preparation based on demannosylated mLigANI (nmLigANI) elicited an immune response in hamsters, but did not afford protection. The production of mLigANI in bioreactor by P. pastoris yielded ~50 mg L(-1) of recombinant protein. P. pastoris is a potential platform for the production of leptospiral antigens on an industrial scale. The results demonstrate that LigANI secreted by P. pastoris on mannosylated form (mLigANI) protect hamsters as subunit vaccine of L. interrogans lethal infection.
Collapse
Affiliation(s)
- Daiane D Hartwig
- Unidade de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil,
| | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Cavalli LS, Batista CR, Nornberg BF, Mayer FQ, Seixas FK, Romano LA, Marins LF, Abreu PC. Natural occurrence of White spot syndrome virus and Infectious hypodermal and hematopoietic necrosis virus in Neohelice granulata crab. J Invertebr Pathol 2013; 114:86-8. [DOI: 10.1016/j.jip.2013.06.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 06/04/2013] [Accepted: 06/09/2013] [Indexed: 10/26/2022]
|
40
|
Forster KM, Hartwig DD, Seixas FK, McBride AJA, Monte LG, Recuero ALC, Brod CS, Hartleben CP, Amaral M, Dellagostin OA. Characterization of a virulent Leptospira interrogans strain isolated from an abandoned swimming pool. Braz J Microbiol 2013; 44:165-70. [PMID: 24159300 PMCID: PMC3804194 DOI: 10.1590/s1517-83822013005000029] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [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: 02/22/2012] [Accepted: 07/02/2012] [Indexed: 12/20/2022] Open
Abstract
Pathogenic Leptospira spp. are the etiological agents of leptospirosis, an important disease of both humans and animals. In urban settings, L. interrogans serovars are the predominant cause of disease in humans. The purpose of this study was to characterize a novel Leptospira isolate recovered from an abandoned swimming pool. Molecular characterization through sequencing of the rpoB gene revealed 100% identity with L. interrogans and variable-number tandem-repeat (VNTR) analysis resulted in a banding pattern identical to L. interrogans serogroup Icterohaemorrhagiae, serovar Copenhageni or Icterohaemorrhagiae. The virulence of the strain was determined in a hamster model of lethal leptospirosis. The lethal dose 50% (LD50) was calculated to be two leptospires in female hamsters and a histopathological examination of infected animals found typical lesions associated with severe leptospirosis, including renal epithelium degeneration, hepatic karyomegaly, liver-plate disarray and lymphocyte infiltration. This highly virulent strain is now available for use in further studies, especially evaluation of vaccine candidates.
Collapse
Affiliation(s)
- Karine M Forster
- Núcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Monte LG, Jorge S, Xavier MA, Leal FM, Amaral MG, Seixas FK, Dellagostin OA, Hartleben CP. Molecular characterization of virulent Leptospira interrogans serogroup icterohaemorrhagiae isolated from Cavia aperea. Acta Trop 2013; 126:164-6. [PMID: 23435256 DOI: 10.1016/j.actatropica.2013.02.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Revised: 01/31/2013] [Accepted: 02/11/2013] [Indexed: 11/26/2022]
Abstract
Leptospirosis is a worldwide zoonotic infection caused by pathogenic Leptospira. Synanthropic rodents are recognized carriers of leptospires; however, the role of wild rodents in the epidemiology of the disease is still incipient. In this work, we describe Leptospira strain isolated from Cavia aperea (Brazilian guinea pig). The isolated strain was characterized by partial rpoB gene sequencing, variable-number tandem-repeats and histopathological analysis. The strain was identified as Leptospira interrogans, serogroup Icterohaemorrhagiae and caused clinical signs of leptospirosis in the hamster model, attesting to its virulence. In conclusion, these findings could be useful for elucidating the epidemiological role of C. aperea in leptospirosis.
Collapse
|
42
|
Campos VF, Robaldo RB, Deschamps JC, Seixas FK, McBride AJA, Marins LF, Okamoto M, Sampaio LA, Collares T. Neuropeptide Y gene expression around meal time in the Brazilian flounder Paralichthys orbignyanus. J Biosci 2012; 37:227-32. [PMID: 22581328 DOI: 10.1007/s12038-012-9205-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Neuropeptide Y (NPY) is considered the major stimulant for food intake in mammals and fish. Previous results indicate that NPY is involved in the feeding behaviour of the Brazilian flounder, Paralichthys orbignyanus. In this study, we evaluated hypothalamic NPY expression before (-2 h), during (0 h) and after feeding (+2 h) in two independent experiments: (1) during a normal feeding schedule and (2) in fish fasted for 2 weeks. During normal feeding, changes in the levels of NPY mRNA were periprandial, with expression levels being significantly elevated at meal time (P less than 0.05) and significantly reduced 2 h later (P less than 0.05). Comparing the fasting and unfasted groups, NPY mRNA levels were significantly higher (P less than 0.05) at -2 h and +2 h in the fasting group, but there was no difference at 0 h. In addition, the higher NPY mRNA levels that were observed in the fasting group were maintained throughout the sampling period. In summary, our results show that NPY expression was associated with meal time (0 h) in food intake regulation.
Collapse
Affiliation(s)
- Vinicius F Campos
- Núcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, CP 354, 96010-900, Pelotas, RS, Brazil.
| | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Jorge S, Hartleben CP, Seixas FK, Coimbra MA, Stark CB, Larrondo AG, Amaral MG, Albano APN, Minello LF, Dellagostin OA, Brod CS. Leptospira borgpetersenii from free-living white-eared opossum (Didelphis albiventris): first isolation in Brazil. Acta Trop 2012; 124:147-51. [PMID: 22897870 DOI: 10.1016/j.actatropica.2012.07.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2012] [Revised: 07/24/2012] [Accepted: 07/30/2012] [Indexed: 12/22/2022]
Abstract
Leptospirosis is a zoonotic disease that occurs all over the world, caused by bacteria of the genus Leptospira. Marsupial and didelphidae families are considered susceptible to infection caused by a wide range of Leptospira serovars for which they serve as reservoirs. Thirty-three free-living white-eared opossums (Didelphis albiventris) were captured in Southern Brazil and bodily fluids were collected. From the urine samples it was possible to obtain an isolate identified as Leptospira borgpetersenii by rpoB gene sequencing and belonging to serovar Castellonis by Multilocus Variable-Number Tandem-Repeat Analysis. This is the first report of the isolation of Leptospira spp. from the white-eared opossum in Brazil. In addition, the new strain was also virulent in the hamster model of lethal leptospirosis. The microscopic agglutination test (MAT) was used for detecting the presence of antibodies against Leptospira spp. in white-eared opossum, human, cattle and canine sera using a panel of 59 Leptospira strains that included the new isolate. The inclusion of the new strain in the MAT battery increased the MAT sensitivity for canine sera. These findings suggest that the white-eared opossum is an important reservoir of pathogenic Leptospira spp.
Collapse
|
44
|
Hartleben CP, Leal FMA, Monte LG, Hartwig DD, Seixas FK, Vasconcellos SA, Brihuega B, Dellagostin OA. Serological analysis by enzyme-linked immunosorbent assay using recombinant antigen LipL32 for the diagnosis of swine leptospirosis. Curr Microbiol 2012; 66:106-9. [PMID: 23064970 DOI: 10.1007/s00284-012-0237-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2012] [Accepted: 09/03/2012] [Indexed: 10/27/2022]
Abstract
Leptospirosis is an important global zoonotic disease caused by pathogenic Leptospira spp. species. Swine leptospirosis has a major economic impact because pigs are sources of animal protein and by-products. The signs of swine leptospirosis are abortion, stillbirth, birth of weak or ill piglets, appearing 14-60 days after infection. The reference method for diagnosis of leptospirosis is the microscopic agglutination test (MAT), in which serum samples are reacted with live antigen suspensions of leptospiral serovars. However, MAT is laborious and time consuming as a diagnostic procedure when dealing with a large number of samples; therefore, efforts are being made to develop novel, sensitive, and specific diagnostic tests for leptospirosis. In this study, a recombinant LipL32 based on enzyme-linked immunosorbent assay (rLipL32/ELISA) was evaluated as a screening test for the detection of pathogenic leptospiral-specific antibodies. A total of 86 swine serum samples tested by MAT were used to develop rLipL32/ELISA. Compared to positive and negative sera tested by MAT, rLipL32/ELISA showed 100 % sensitivity, 85.1 % specificity, and 91.86 % accuracy. No positive reaction for other bacterial diseases (enzootic pneumonia and brucellosis) was observed. The rLipL32/ELISA reported in this study is a specific, sensitive, and convenient test for the detection of antibodies against swine leptospiral infection and can be used as a rapid screening test in epidemiological surveys.
Collapse
Affiliation(s)
- Cláudia P Hartleben
- Laboratório de Imunodiagnóstico, Núcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, P.O. Box 354, Pelotas, RS, CEP 96010-900, Brazil.
| | | | | | | | | | | | | | | |
Collapse
|
45
|
Nedel F, Campos VF, Alves D, McBride AJA, Dellagostin OA, Collares T, Savegnago L, Seixas FK. Substituted diaryl diselenides: cytotoxic and apoptotic effect in human colon adenocarcinoma cells. Life Sci 2012; 91:345-52. [PMID: 22884807 DOI: 10.1016/j.lfs.2012.07.023] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Revised: 07/12/2012] [Accepted: 07/18/2012] [Indexed: 10/28/2022]
Abstract
AIMS To investigate the effects and study the underlying cell death mechanisms of diaryl diselenides, including: diphenyl diselenide (C(6)H(5)Se)(2); 4-chlorodiphenyl diselenide (4-ClC(6)H(4)Se)(2); 3-(trifluoromethyl)-diphenyl diselenide (3-CF(3)C(6)H(4)Se)(2) and 4-methoxydiphenyl diselenide (4-MeOC(6)H(4)Se)(2), on the human colon adenocarcinoma cell line HT-29. MAIN METHODS The viability of HT-29 cells after exposure to the diaryl diselenides and its substituted structures was based on the MTT assay. To verify if cell death was mediated throughout apoptosis mechanisms, flow cytometry and real-time PCR (qPCR) analyses were conducted. KEY FINDINGS The MTT assay and flow cytometry analyses showed that (3-CF(3)C(6)H(4)Se)(2) and (4-MeOC(6)H(4)Se)(2) induced cytotoxicity through apoptosis mechanisms in HT-29 cells. qPCR revealed there was an up-regulation of pro-apoptotic (Bax, casapase-9, caspase-8, apoptosis-inducing factor (AIF) and Endonuclease G (EndoG)) and cell-cycle arrest genes (p53 and p21) and down-regulation of anti-apoptotic (Bcl-2 and survivin) and Myc genes. SIGNIFICANCE These results demonstrate that (3-CF(3)C(6)H(4)Se)₂ and (4-MeOC(6)H(4)Se)(2) have the potential to induce apoptosis in HT-29 cells through the activation of caspase-dependent and independent pathways and through cell-cycle arrest.
Collapse
Affiliation(s)
- Fernanda Nedel
- Grupo de Oncologia Celular e Molecular, Programa de Pós-Graduação em Biotecnologia, Centro de Desenvolvimento Tecnológico/Biotecnologia, Universidade Federal de Pelotas, Capão do Leão, RS 96010-900, Brazil
| | | | | | | | | | | | | | | |
Collapse
|
46
|
Amaral MG, Campos VF, Seixas FK, Cavalcanti PV, Selau LPR, Deschamps JC, Collares T. Testis-mediated gene transfer in mice: comparison of transfection reagents regarding transgene transmission and testicular damage. Biol Res 2011; 44:229-234. [PMID: 22688909] [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: 06/01/2023] Open
Abstract
Testis-mediated gene transfer (TMGT) has been used as in vivo gene transfer technology to introduce foreign DNA directly into testes, allowing mass gene transfer to offspring via mating. In this study, we used plasmid DNA (pEGFP-N1) mixed with dimethylsulfoxide (DMSO), N,N-dimethylacetamide (DMA) or liposome (Lipofectin) in an attempt to improve TMGT. Males receiving consecutive DNA complex injections were mated to normal females to obtain F0 progeny. In vivo evaluation of EGFP expression, RT-PCR and PCR were used to detect the expression and the presence of exogenous DNA in the progeny. We also evaluated possible testicular damage by histological procedures. PC R and RT-PCR analyses revealed that liposome and DMSO increased the rate of TMGT. Histological analyses demonstrated that repeated (4 times) injections of DNA complexes can affect spermatogenesis. DMSO was the most deleterious among the reagents tested. In this study, we detected the presence of transgene in the progeny, and its expression in blood cells. Consecutive injections of DNA complexes were associated with impaired spermatogenesis, suggesting requirement of optimal conditions for DNA delivery through TMGT.
Collapse
Affiliation(s)
- Marta G Amaral
- Núcleo de Biotecnología, Centro de Desenvolvlmento Tecnológico, Campus Universitario, Unlversldade Federal de Pelotas, Pelotas, RS, Brazil
| | | | | | | | | | | | | |
Collapse
|
47
|
Thurow HS, Haack R, Hartwig FP, de Oliveira IO, Dellagostin OA, Gigante DP, Horta BL, Collares T, Seixas FK. TP53 gene polymorphism: Importance to cancer, ethnicity and birth weight in a Brazilian cohort. J Biosci 2011; 36:823-31. [DOI: 10.1007/s12038-011-9147-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
48
|
Monte LG, Conceição FR, Coutinho ML, Seixas FK, da Silva EF, Vasconcellos FA, deCastro LAS, Hartleben CP, Dellagostin OA, Aleixo JAG. Monoclonal antibodies against the leptospiral immunoglobulin-like proteins A and B conserved regions. Comp Immunol Microbiol Infect Dis 2011; 34:441-6. [PMID: 21903270 DOI: 10.1016/j.cimid.2011.08.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2011] [Revised: 08/11/2011] [Accepted: 08/17/2011] [Indexed: 12/22/2022]
Abstract
Leptospirosis is an infectious disease caused by pathogenic spirochetes of the genus Leptospira that affects humans and a wide variety of animals. Recently the genomes of Leptospira interrogans, Leptospira borgpetersenii and Leptospira biflexa species were sequenced allowing the identification of new virulence factors involved in survival and pathogenesis of bacteria. LigA and LigB are surface-exposed bacterial adhesins whose expression is correlated with the virulence of Leptospira strains. In this study, we produced and characterized five monoclonal antibodies (MAbs) against a recombinant fragment of LigB (rLigBrep) with approximately 54kDa that comprise the portions of LigA and LigB (domains 2-7). The 5 MAbs obtained were of the IgG1 (2) and IgG2b (3) isotypes and their affinity constants for rLigBrep ranged from 7×10(7) M(-1) to 4×10(8) M(-1). The MAbs were able to react with the native antigen on the L. interrogans, L. borgpetersenii and Leptospira noguchii surfaces by indirect immunofluorescence, immunoblotting and immunoelectron microscopy. These results demonstrate that the MAbs anti-rLigBrep can be useful to complement genetic studies and to aid studies aiming understanding the role of Lig proteins in Leptospira pathogenesis and the development of Lig-based vaccines and improved diagnostic tests for leptospirosis.
Collapse
Affiliation(s)
- Leonardo G Monte
- Laboratório de Imunologia Aplicada, Núcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, P.O. Box 354, 96010-900, Pelotas, RS, Brazil.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Campos VF, Amaral MG, Seixas FK, Pouey JL, Selau LP, Dellagostin OA, Deschamps JC, Collares T. Exogenous DNA uptake by South American catfish (Rhamdia quelen) spermatozoa after seminal plasma removal. Anim Reprod Sci 2011; 126:136-41. [DOI: 10.1016/j.anireprosci.2011.05.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Revised: 05/02/2011] [Accepted: 05/16/2011] [Indexed: 01/03/2023]
|
50
|
Amaral MG, Campos VF, Seixas FK, Cavalcanti PV, Selau LPR, Deschamps JC, Collares T. Testis-mediated gene transfer in mice: comparison of transfection reagents regarding transgene transmission and testicular damage. Biol Res 2011. [DOI: 10.4067/s0716-97602011000300003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|