Dr. Murilo Vieira is certified as a Laboratory Animal Science Professional by FESSACAL/ICLAS/SBCAL and as a Laboratory Animal Specialist by ICLAS. He is currently a faculty member in the Graduate Program in Veterinary Sciences (PPGCVET) at UFU and in the Professional Master’s Program in Laboratory Animal Science (MPCAL) at the Institute of Science and Technology in Biomodels of Fiocruz (RJ). President of the Brazilian Society for Laboratory Animal Science (SBCAL/COBEA), is a member of the Brazilian Academy of Laboratory Animal Science (ABCAL), and a full member of the National Council for the Control of Animal Experimentation (CONCEA/MCTI). He coordinates the Minas Gerais Network for Biotechnologies in Experimental Models (RMBME/FAPEMIG) and the Laboratory of Biotechnology in Experimental Models.
EDUCATION
I hold a degree in Veterinary Medicine (2012), a Master's degree (2013), and a Ph.D. (2017) in Applied Immunology and Parasitology from the Federal University of Uberlândia (UFU), Brazil. I am certified as a Laboratory Animal Science Professional by FESSACAL/ICLAS/SBCAL and as a Laboratory Animal Specialist by ICLAS.
RESEARCH, TEACHING, or OTHER INTERESTS
Veterinary, Small Animals, Biotechnology, Immunology and Microbiology
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Scopus Publications
Scopus Publications
Anti-GPI scFv as a Promising Tool for Intervention Against Cerebral Malaria in Mice Sandra Gabriela Klein, Kelem Cristina Pereira Mota, Bruna Cristina Borges, Mylla Spirandelli Vieira, Matheus Morais Neves, Ludmilla Silva Mendes, Flávia Batista Ferreira, Isabela Lemos de Lima, Fabiana de Almeida Araújo Santos, Luciana Machado Bastos, Wânia Rezende Lima, Luiz Ricardo Goulart Filho, Murilo Vieira da Silva International Journal of Molecular Sciences, 2026 Malaria remains a major global health challenge. While treatments targeting parasite replication exist, effective interventions for neurological manifestations are scarce, necessitating new strategies for cerebral malaria. In this study, we investigated the effect of a single-chain variable fragment (scFv) against glycosylphosphatidylinositol (GPI) as an intervention tool to mitigate the effects of Plasmodium in a preclinical model. We used C57BL/6J mice infected with Plasmodium berghei-ANKA (PbA) and treated them with anti-GPI scFv or phosphate-buffered saline (PBS) on days 0, 3, and 6 post-infection. Uninfected controls were treated on the same days with scFv or PBS. The animals were evaluated for morbidity and mortality, body weight, parasitemia, blood count, cytokines, and histopathology. Results show that anti-GPI scFv prevented lethality in 71.4% of infected animals and promoted recovery from weight loss. Furthermore, the intervention inhibited neurological and systemic signs, reduced parasitemia, and improved hematological and histopathological parameters in the brain, lungs, and kidneys. In conclusion, anti-GPI scFv exerts a significant systemic effect on experimental cerebral malaria (ECM) pathology, representing a promising tool for severe manifestations of the disease.
Salivary shield: Rhodnius prolixus salivary glandular extract reduces intestinal immunopathology and protects against Toxoplasma gondii infection Roberto Augusto Pereira Sousa, Jean Henrique Nunes de Paula, Rafaela José Silva, Samuel Cota Teixeira, Flávia Batista Ferreira França, Amanda Helena Leão Gonçalves, Túlio Rodrigues Oliveira Silva, Maria Julia Granero-Rosa, Murilo Vieira Silva, Marcos de Lucca Moreira Gomes, Marcos Vinícius Silva, Virmondes Rodrigues Junior, José Roberto Mineo, Bellisa Freitas Barbosa, Eloisa Amália Vieira Ferro, Carlo José Freire Oliveira, Angelica Oliveira Gomes Gut Pathogens, 2025 C57BL/6 mice, orally infected with T. gondii, experience pronounced severe intestinal inflammation, causing necrosis, weight loss, and bacterial translocation. In addition, immunomodulatory molecules such as lipocalins, nitrophorins, and apyrases are present in R. prolixus saliva. Our objective was to assess the immunomodulatory effects of the salivary gland extract (SGE) of R. prolixus in mice orally infected by T. gondii. Experimental groups received no treatment (PBS) or SGE (10 µg and 30 µg) in the chronic infection phase and (30 µg) in the acute infection phase. Control groups were non-infected and treated or not treated with SGE (30 µg). SGE was injected intraperitoneally daily, and mice were infected by gavage with 20 cysts of T. gondii (ME-49 strain) on the third treatment day. The treatment duration for the experiment was 23 days for the chronic infection phase (corresponding to 20 days of infection) and 12 days for the acute infection phase (corresponding to 9 days of infection). SGE-treated mice showed reduced small intestine shortening, weight loss, clinical scores, and higher survival rates. Treated mice also exhibited increased secretion of regulatory and protective cytokines (IL-4, IL-2, IL-10, IL-22) and higher levels of IL-4 (chronic phase), IL-2, and IL-22 (acute phase) in the gut. SGE treatment (30 µg) demonstrated protective effects in both the duodenum and ileum of T. gondii-infected mice. Treated animals showed better-preserved villus architecture, increased goblet and Paneth cell counts, and shallower crypts. Correlation data revealed that treated animals exhibited a more regulated and protective immune response. Overall, SGE contributed to the preservation of intestinal integrity and the reduction of inflammation. Thus, we conclude that SGE induces a regulatory response, mitigating inflammation and protecting against T. gondii infection.
Involvement of Inflammatory Cytokines, Renal NaPi-IIa Cotransporter, and TRAIL Induced-Apoptosis in Experimental Malaria-Associated Acute Kidney Injury Gustavo Martins Simião, Kleber Simônio Parreira, Sandra Gabriela Klein, Flávia Batista Ferreira, Fernanda de Souza Freitas, Eduardo Ferreira da Silva, Neide Maria Silva, Murilo Vieira da Silva, Wânia Rezende Lima Pathogens, 2024 The murine model of experimental cerebral malaria (ECM) induced by Plasmodium berghei ANKA was used to investigate the relationship among pro-inflammatory cytokines, alterations in renal function biomarkers, and the induction of the TRAIL apoptosis pathway during malaria-associated acute kidney injury (AKI). Renal function was evaluated through the measurement of plasma creatinine and blood urea nitrogen (BUN). The mRNA expression of several cytokines and NaPi-IIa was quantified. Kidney sections were examined and cytokine levels were assessed using cytometric bead array (CBA) assays. The presence of glomerular IgG deposits and apoptosis-related proteins were investigated using in situ immunofluorescence assays and quantitative real-time PCR, respectively. NaPi-IIa downregulation in the kidneys provided novel insights into the pathogenesis of hypophosphatemia during CM. Histopathological analysis revealed characteristic features of severe malaria-associated nephritis, including glomerular collapse and tubular alterations. Pro-inflammatory cytokines, such as TNF-α, IL-1β, and IL-6, were upregulated. The TRAIL apoptosis pathway was significantly activated, implicating its role in renal apoptosis. The observed alterations in renal biomarkers and the downregulation of NaPi-IIa shed light on potential mechanisms contributing to renal dysfunction in ECM. The intricate balance between pro- and anti-inflammatory cytokines, along with the activation of the TRAIL apoptosis pathway, highlights the complexity of malaria-associated AKI and provides new therapeutic targets.
Perspectives of FTIR as Promising Tool for Pathogen Diagnosis, Sanitary and Welfare Monitoring in Animal Experimentation Models: A Review Based on Pertinent Literature Matheus Morais Neves, Renan Faria Guerra, Isabela Lemos de Lima, Thomas Santos Arrais, Marco Guevara-Vega, Flávia Batista Ferreira, Rafael Borges Rosa, Mylla Spirandelli Vieira, Belchiolina Beatriz Fonseca, Robinson Sabino da Silva, Murilo Vieira da Silva Microorganisms, 2024 Currently, there is a wide application in the literature of the use of the Fourier Transform Infrared Spectroscopy (FTIR) technique. This basic tool has also proven to be efficient for detecting molecules associated with hosts and pathogens in infections, as well as other molecules present in humans and animals’ biological samples. However, there is a crisis in science data reproducibility. This crisis can also be observed in data from experimental animal models (EAMs). When it comes to rodents, a major challenge is to carry out sanitary monitoring, which is currently expensive and requires a large volume of biological samples, generating ethical, legal, and psychological conflicts for professionals and researchers. We carried out a survey of data from the relevant literature on the use of this technique in different diagnostic protocols and combined the data with the aim of presenting the technique as a promising tool for use in EAM. Since FTIR can detect molecules associated with different diseases and has advantages such as the low volume of samples required, low cost, sustainability, and provides diagnostic tests with high specificity and sensitivity, we believe that the technique is highly promising for the sanitary and stress and the detection of molecules of interest of infectious or non-infectious origin.
Impact of quality and transparency in scientific writing on the reduction of animal usage in experimental protocols: a review based in pertinent literature Matheus M. Neves, Sandra G. Klein, Ray C. Silva, Lucas M. M. Bernardes, Serena M. Malta, Thiago N. Vieira, Rafael B. Rosa, Isabela L. Lima, Flávia B. Ferreira, Murilo V. Silva Frontiers in Veterinary Science, 2024 The irreproducibility in scientific research has become a critical issue. Despite the essential role of rigorous methodology in constructing a scientific article, more than half of publications, on average, are considered non-reproducible. The implications of this irreproducibility extend to reliability problems, hindering progress in technological production and resulting in substantial financial losses. In the context of laboratory animal research, this work emphasizes the importance of choosing an appropriate experimental model within the 3R’s principle (Refine, Reduce, Replace). This study specifically addresses a deficiency in data specification in scientific articles, revealing inadequacies in the description of crucial details, such as environmental conditions, diet, and experimental procedures. For this purpose, 124 articles from journals with relevant impact factors were analyzed, conducting a survey of data considered important for the reproducibility of studies. Important flaws in the presentation of data were identified in most of the articles evaluated. The results of this study highlight the need to improve the description of essential information, standardizing studies, and ensuring the reproducibility of experiments in areas such as metabolism, immunity, hormones, stress, among others, to enhance the reliability and reproduction of experimental results, aligning with international guidelines such as ARRIVE and PREPARE.
A simple and low-cost environmental enrichment program improves the welfare of Calomys callosus, a species that adapts to animal facilities Sandra Gabriela Klein, Tamires Soares de Assis, Gabriel Silva Pereira, Loyane Bertagnolli Coutinho, Renan Faria Guerra, Matheus Morais Neves, Flávia Batista Ferreira, Isabela Lemos de Lima, Richard Costa Polveiro, Eloisa Amália Vieira Ferro, Murilo Vieira da Silva Frontiers in Veterinary Science, 2024 An environmental enrichment protocol is essential for testing experimental models because it upholds animal welfare, aligns with ethical principles in animal experimentation, and reduces the number of animals needed. Calomys callosus, a South American rodent from the Cricetidae family, is bred in rodent animal facilities for its ease of handling, longevity, prolificacy, and effectively mimicking diseases like Toxoplasmosis, Leishmaniasis, Chagas, and Schistosomiasis. There are no reports on environmental enrichments for this species or their impact on reproductive parameters. This study aimed to analyze the influence of the Environmental Enrichment Program (EEP) on the reproductive and zootechnical performance of C. callosus kept in the Rodents Animal Facilities Complex of Universidade Federal de Uberlândia (UFU). Two experimental groups were established: with environmental enrichment EE+ and without environmental enrichment EE−. The materials used in the experimental design were changed weekly and alternated between dietary, occupational, physical/cognitive, and non-enrichment items. After the inclusion of the EEP, an improvement in the reproductive indices of C. callosus was identified in the EE+ group. These improvements included increased female precocity, a decreased interbirth interval, and a higher number of pairs producing more offspring. The postpartum zootechnical indices were also better, such as the number of animals born alive, improved weaning rates, and a reduced average number of deaths from birth to weaning. After the inclusion of the EEP, the general health status of C. callosus improved, reducing cases of non-infectious lumbar alopecia. Therefore, EEP allows C. callosus to express natural reproductive behaviors and improves parental care.
In vitro and in vivo models for monkeypox Rafael Borges Rosa, Emilene Ferreira de Castro, Murilo Vieira da Silva, Denise Caroline Paiva Ferreira, Ana Carolina Gomes Jardim, Igor Andrade Santos, Mikaela dos Santos Marinho, Flávia Batista Ferreira França, Lindomar José Pena Iscience, 2023 models are being characterized to meet the growing demand for new studies related to MPXV. In this review, we summarize the main MPXV models that have already been developed and discuss how they can contribute to advance the understanding of its pathogenesis, replication, and transmission, as well as identifying antivirals to treat infected patients.
A fast and simple protocol to anaesthesia in chicken embryos Mônica Horr, Simone Sommerfeld, Murilo V. Silva, Belchiolina B. Fonseca Experimental Animals, 2023 Chicken embryos (CE) are an experimental model used as an important life science research tool worldwide, and then, adequate anesthetic protocols must be adopted to avoid the unjustifiable suffering of animals. Thus, our objective was to evaluate different anesthetic protocols in CEs using an easy inoculation route, the shell membrane (SM). We adopted the heart rate by pulse and the CE movements as a parameter of pain by assessing the vase in the chorioallantoic membrane (CAM) through the shell by a sensor of a multiparametric monitor. CEs were distributed into the following groups: (i) association of ketamine (5 mg/CE), midazolam (0.05 mg/CE) and morphine (0.15 mg/CE); (ii) ketamine (5 mg/CE) and xylazine (0.125 mg/CE); (iii) xylazine (0.0125 mg/CE) and morphine (0.15 mg/CE). The stress method used to test the anesthetic potential of the drugs was high temperature stimulation, keeping the CEs 10 cm from the fire of a Bussen nozzle for 30 s. In this experimental model, associations between different drugs decreased the pulse and the movement, indicating possible sedation. After treatment, the CE’s submitted to the stress method had the heart rate and movements kept low in the groups ketamine-midazolam-morphine and ketamine-xylazine, while the non-drug-treated group increased heart rate. In a group treated with xylazine-morphine, the heart rate did not decrease, but the movement decreased after the stimulus. As the best results were the combinations of ketamine-midazolam-morphine and ketamine-xylazine, we recommend these associations for use in embryos in the final third of embryonic development in experimental protocols and euthanasia.
Identification of bioactive peptides from a Brazilian kefir sample, and their anti-Alzheimer potential in Drosophila melanogaster Serena Mares Malta, Letícia Leandro Batista, Heitor Cappato Guerra Silva, Rodrigo Rodrigues Franco, Matheus Henrique Silva, Tamiris Sabrina Rodrigues, Lucas Ian Veloso Correia, Mário Machado Martins, Gabriela Venturini, Foued Salmen Espindola, Murilo Vieira da Silva, Carlos Ueira-Vieira Scientific Reports, 2022 Alzheimer’s disease (AD) is the most common form of dementia in the elderly, affecting cognitive, intellectual, and motor functions. Different hypotheses explain AD’s mechanism, such as the amyloidogenic hypothesis. Moreover, this disease is multifactorial, and several studies have shown that gut dysbiosis and oxidative stress influence its pathogenesis. Knowing that kefir is a probiotic used in therapies to restore dysbiosis and that the bioactive peptides present in it have antioxidant properties, we explored its biotechnological potential as a source of molecules capable of modulating the amyloidogenic pathway and reducing oxidative stress, contributing to the treatment of AD. For that, we used Drosophila melanogaster model for AD (AD-like flies). Identification of bioactive peptides in the kefir sample was made by proteomic and peptidomic analyses, followed by in vitro evaluation of antioxidant and acetylcholinesterase inhibition potential. Flies were treated and their motor performance, brain morphology, and oxidative stress evaluated. Finally, we performed molecular docking between the peptides found and the main pathology-related proteins in the flies. The results showed that the fraction with the higher peptide concentration was positive for the parameters evaluated. In conclusion, these results revealed these kefir peptide-rich fractions have therapeutic potential for AD.
TNF-TNFR1 Signaling Enhances the Protection Against Neospora caninum Infection Flávia Batista Ferreira França, Murilo Vieira Silva, Mariana Ferreira Silva, Eliézer Lucas Pires Ramos, Vanessa dos Santos Miranda, Caroline Martins Mota, Fernanda Maria Santiago, José Roberto Mineo, Tiago Wilson Patriarca Mineo Frontiers in Cellular and Infection Microbiology, 2022
Neospora caninum activates p38 MAPK as an evasion mechanism against innate immunity Caroline M. Mota, Ana C. M. Oliveira, Marcela Davoli-Ferreira, Murilo V. Silva, Fernanda M. Santiago, Santhosh M. Nadipuram, Ajay A. Vashisht, James A. Wohlschlegel, Peter J. Bradley, João S. Silva, José R. Mineo, Tiago W. P. Mineo Frontiers in Microbiology, 2016