ANTONIO CHARLYS DA COSTA
Projetos de Pesquisa
Unidades Organizacionais
LIM/52 - Laboratório de Virologia, Hospital das Clínicas, Faculdade de Medicina
LIM/46 - Laboratório de Parasitologia Médica, Hospital das Clínicas, Faculdade de Medicina
LIM/46 - Laboratório de Parasitologia Médica, Hospital das Clínicas, Faculdade de Medicina
7 resultados
Resultados de Busca
Agora exibindo 1 - 7 de 7
- A new gyrovirus in human feces(2015) PHAN, Tung Gia; COSTA, Antonio Charlys da; ZHANG, Wen; POTHIER, Pierre; AMBERT-BALAY, Katia; DENG, Xutao; DELWART, EricA novel gyrovirus genome found in the feces of an adult with diarrhea is described. The genome shows the three expected main ORFs encoding a structural protein (VP1), nonstructural protein (VP2), and Apoptin protein (VP3), which shared identities of 41, 42, and 38 % with those of the most closely related gyrovirus proteins, respectively. Given the high divergence in its genome, this gyrovirus may be considered the prototype for a new viral species (GyV9) in the Gyrovirus genus. Because the closest relatives of this gyrovirus infect chicken, a possible dietary origin for the presence of this virus in human feces is discussed.
- A diverse group of small circular ssDNA viral genomes in human and non-human primate stools(2015) NG, Terry Fei Fan; ZHANG, Wen; SACHSENROEDER, Jana; KONDOV, Nikola O.; COSTA, Antonio Charlys da; VEGA, Everardo; HOLTZ, Lori R.; WU, Guang; WANG, David; STINE, Colin O.; ANTONIO, Martin; MULVANEY, Usha S.; MUENCH, Marcus O.; DENG, Xutao; AMBERT-BALAY, Katia; POTHIER, Pierre; VINJE, Jan; DELWART, EricViral metagenomics sequencing of fecal samples from outbreaks of acute gastroenteritis from the US revealed the presence of small circular ssDNA viral genomes encoding a replication initiator protein (Rep). Viral genomes were similar to 2.5 kb in length, with bi-directionally oriented Rep and capsid (Cap) encoding genes and a stem loop structure downstreamof Rep. Several genomes showed evidence of recombination. By digital screening of an in-house virome database (1.04 billion reads) using BLAST, we identified closely related sequences from cases of unexplained diarrhea in France. Deep sequencing and PCR detected such genomes in 7 of 25 US (28 percent) and 14 of 21 French outbreaks (67 percent). One of eighty-five sporadic diarrhea cases in the Gambia was positive by PCR. Twenty-two complete genomes were characterized showing that viruses from patients in the same outbreaks were closely related suggesting common origins. Similar genomes were also characterized from the stools of captive chimpanzees, a gorilla, a black howler monkey, and a lemur that were more diverse than the human stool-associated genomes. The name smacovirus is proposed for this monophyletic viral clade. Possible tropism include mammalian enteric cells or ingested food components such as infected plants. No evidence of viral amplification was found in immunodeficient mice orally inoculated with smacovirus- positive stool supernatants. A role for smacoviruses in diarrhea, if any, remains to be demonstrated.
- Establishment and cryptic transmission of Zika virus in Brazil and the Americas(2017) FARIA, N. R.; QUICK, J.; CLARO, I. M.; THEZE, J.; JESUS, J. G. de; GIOVANETTI, M.; KRAEMER, M. U. G.; HILL, S. C.; BLACK, A.; COSTA, A. C. da; FRANCO, L. C.; SILVA, S. P.; WU, C. -H.; RAGHWANI, J.; CAUCHEMEZ, S.; PLESSIS, L. du; VEROTTI, M. P.; OLIVEIRA, W. K. de; CARMO, E. H.; COELHO, G. E.; SANTELLI, A. C. F. S.; VINHAL, L. C.; HENRIQUES, C. M.; SIMPSON, J. T.; LOOSE, M.; ANDERSEN, K. G.; GRUBAUGH, N. D.; SOMASEKAR, S.; CHIU, C. Y.; MUNOZ-MEDINA, J. E.; GONZALEZ-BONILLA, C. R.; ARIAS, C. F.; LEWIS-XIMENEZ, L. L.; BAYLIS, S. A.; CHIEPPE, A. O.; AGUIAR, S. F.; FERNANDES, C. A.; LEMOS, P. S.; NASCIMENTO, B. L. S.; MONTEIRO, H. A. O.; SIQUEIRA, I. C.; QUEIROZ, M. G. de; SOUZA, T. R. de; BEZERRA, J. F.; LEMOS, M. R.; PEREIRA, G. F.; LOUDAL, D.; MOURA, L. C.; DHALIA, R.; FRANCA, R. F.; MAGALHAES, T.; MARQUES JR., E. T.; JAENISCH, T.; WALLAU, G. L.; LIMA, M. C. de; NASCIMENTO, V.; CERQUEIRA, E. M. de; LIMA, M. M. de; MASCARENHAS, D. L.; MOURA NETO, J. P.; LEVIN, A. S.; TOZETTO-MENDOZA, T. R.; FONSECA, S. N.; MENDES-CORREA, M. C.; MILAGRES, F. P.; SEGURADO, A.; HOLMES, E. C.; RAMBAUT, A.; BEDFORD, T.; NUNES, M. R. T.; SABINO, E. C.; ALCANTARA, L. C. J.; LOMAN, N. J.; PYBUS, O. G.Transmission of Zika virus (ZIKV) in the Americas was first confirmed in May 2015 in northeast Brazil(1). Brazil has had the highest number of reported ZIKV cases worldwide (more than 200,000 by 24 December 20162) and the most cases associated with microcephaly and other birth defects (2,366 confirmed by 31 December 20162). Since the initial detection of ZIKV in Brazil, more than 45 countries in the Americas have reported local ZIKV transmission, with 24 of these reporting severe ZIKV-associated disease(3). However, the origin and epidemic history of ZIKV in Brazil and the Americas remain poorly understood, despite the value of this information for interpreting observed trends in reported microcephaly. Here we address this issue by generating 54 complete or partial ZIKV genomes, mostly from Brazil, and reporting data generated by a mobile genomics laboratory that travelled across northeast Brazil in 2016. One sequence represents the earliest confirmed ZIKV infection in Brazil. Analyses of viral genomes with ecological and epidemiological data yield an estimate that ZIKV was present in northeast Brazil by February 2014 and is likely to have disseminated from there, nationally and internationally, before the first detection of ZIKV in the Americas. Estimated dates for the international spread of ZIKV from Brazil indicate the duration of pre-detection cryptic transmission in recipient regions. The role of northeast Brazil in the establishment of ZIKV in the Americas is further supported by geographic analysis of ZIKV transmission potential and by estimates of the basic reproduction number of the virus.
- Genomic and epidemiological monitoring of yellow fever virus transmission potential(2018) FARIA, N. R.; KRAEMER, M. U. G.; HILL, S. C.; JESUS, J. Goes de; AGUIAR, R. S.; IANI, F. C. M.; XAVIER, J.; QUICK, J.; PLESSIS, L. du; DELLICOUR, S.; THEZE, J.; CARVALHO, R. D. O.; BAELE, G.; WU, C. -H.; SILVEIRA, P. P.; ARRUDA, M. B.; PEREIRA, M. A.; PEREIRA, G. C.; LOURENCO, J.; OBOLSKI, U.; ABADE, L.; VASYLYEVA, T. I.; GIOVANETTI, M.; YI, D.; WEISS, D. J.; WINT, G. R. W.; SHEARER, F. M.; FUNK, S.; NIKOLAY, B.; FONSECA, V.; ADELINO, T. E. R.; OLIVEIRA, M. A. A.; SILVA, M. V. F.; SACCHETTO, L.; FIGUEIREDO, P. O.; REZENDE, I. M.; MELLO, E. M.; SAID, R. F. C.; SANTOS, D. A.; FERRAZ, M. L.; BRITO, M. G.; SANTANA, L. F.; MENEZES, M. T.; BRINDEIRO, R. M.; TANURI, A.; SANTOS, F. C. P. dos; CUNHA, M. S.; NOGUEIRA, J. S.; ROCCO, I. M.; COSTA, A. C. da; KOMNINAKIS, S. C. V.; AZEVEDO, V.; CHIEPPE, A. O.; ARAUJO, E. S. M.; MENDONCA, M. C. L.; SANTOS, C. C. dos; SANTOS, C. D. dos; MARES-GUIA, A. M.; NOGUEIRA, R. M. R.; SEQUEIRA, P. C.; ABREU, R. G.; GARCIA, M. H. O.; ABREU, A. L.; OKUMOTO, O.; KROON, E. G.; ALBUQUERQUE, C. F. C. de; LEWANDOWSKI, K.; PULLAN, S. T.; CARROLL, M.; OLIVEIRA, T. de; SABINO, E. C.; SOUZA, R. P.; SUCHARD, M. A.; LEMEY, P.; TRINDADE, G. S.; DRUMOND, B. P.; FILIPPIS, A. M. B.; LOMAN, N. J.; CAUCHEMEZ, S.; ALCANTARA, L. C. J.; PYBUS, O. G.The yellow fever virus (YFV) epidemic in Brazil is the largest in decades. The recent discovery of YFV in Brazilian Aedes species mosquitos highlights a need to monitor the risk of reestablishment of urban YFV transmission in the Americas. We use a suite of epidemiological, spatial, and genomic approaches to characterize YFV transmission. We show that the age and sex distribution of human cases is characteristic of sylvatic transmission. Analysis of YFV cases combined with genomes generated locally reveals an early phase of sylvatic YFV transmission and spatial expansion toward previously YFV-free areas, followed by a rise in viral spillover to humans in late 2016. Our results establish a framework for monitoring YFV transmission in real time that will contribute to a global strategy to eliminate future YFV epidemics.
- A new protoparvovirus in human fecal samples and cutaneous T cell lymphomas (mycosis fungoides)(2016) PHAN, Tung G.; DRENO, Brigitte; COSTA, Antonio Charlys da; LI, Linlin; ORLANDI, Patricia; DENG, Xutao; KAPUSINSZKY, Beatrix; SIQUEIRA, Juliana; KNOL, Anne-Chantal; HALARY, Franck; DANTAL, Jacques; ALEXANDER, Kathleen A.; PESAVENTO, Patricia A.; DELWART, EricWe genetically characterized seven nearly complete genomes in the protoparvovirus genus from the feces of children with diarrhea. The viruses, provisionally named cutaviruses (CutaV), varied by 1-6% nucleotides and shared similar to 76% and similar to 82% amino acid identity with the NS1 and VP1 of human bufaviruses, their closest relatives. Using PCR, cutavirus DNA was found in 1.6% (4/245) and 1% (1/100) of diarrhea samples from Brazil and Botswana respectively. In silico analysis of pre-existing metagenomics datasets then revealed closely related parvovirus genomes in skin biopsies from patients with epidermotropic cutaneous T-cell lymphoma (CTCL or mycosis fungoides). PCR of skin biopsies yielded cutavirus DNA in 4/17 CTCL, 0/10 skin carcinoma, and 0/21 normal or noncancerous skin biopsies. In situ hybridization of CTCL skin biopsies detected viral genome within rare individual cells in regions of neoplastic infiltrations. The influence of cutavirus infection on human enteric functions and possible oncolytic role in CTCL progression remain to be determined.
- Genomic and epidemiological characterisation of a dengue virus outbreak among blood donors in Brazil(2017) FARIA, Nuno R.; COSTA, Antonio Charlys da; LOURENCO, Jose; LOUREIRO, Paula; LOPES, Maria Esther; RIBEIRO, Roberto; ALENCAR, Cecilia Salete; KRAEMER, Moritz U. G.; VILLABONA-ARENAS, Christian J.; WU, Chieh-Hsi; THEZE, Julien; KHAN, Kamran; BRENT, Shannon E.; ROMANO, Camila; DELWART, Eric; CUSTER, Brian; BUSCH, Michael P.; PYBUS, Oliver G.; SABINO, Ester C.Outbreaks caused by Dengue, Zika and Chikungunya viruses can spread rapidly in immunologically naive populations. By analysing 92 newly generated viral genome sequences from blood donors and recipients, we assess the dynamics of dengue virus serotype 4 during the 2012 outbreak in Rio de Janeiro. Phylogenetic analysis indicates that the outbreak was caused by genotype II, although two isolates of genotype I were also detected for the first time in Rio de Janeiro. Evolutionary analysis and modelling estimates are congruent, indicating a reproduction number above 1 between January and June, and at least two thirds of infections being unnoticed. Modelling analysis suggests that viral transmission started in early January, which is consistent with multiple introductions, most likely from the northern states of Brazil, and with an increase in within-country air travel to Rio de Janeiro. The combination of genetic and epidemiological data from blood donor banks may be useful to anticipate epidemic spread of arboviruses.
- Nanobiotics and the One Health Approach: Boosting the Fight against Antimicrobial Resistance at the Nanoscale(2023) Himanshu; MUKHERJEE, Riya; VIDIC, Jasmina; LEAL, Elcio; COSTA, Antonio Charlys da; PRUDENCIO, Carlos Roberto; RAJ, V. Samuel; CHANG, Chung-Ming; PANDEY, Ramendra PatiAntimicrobial resistance (AMR) is a growing public health concern worldwide, and it poses a significant threat to human, animal, and environmental health. The overuse and misuse of antibiotics have contributed significantly and others factors including gene mutation, bacteria living in biofilms, and enzymatic degradation/hydrolyses help in the emergence and spread of AMR, which may lead to significant economic consequences such as reduced productivity and increased health care costs. Nanotechnology offers a promising platform for addressing this challenge. Nanoparticles have unique properties that make them highly effective in combating bacterial infections by inhibiting the growth and survival of multi-drug-resistant bacteria in three areas of health: human, animal, and environmental. To conduct an economic evaluation of surveillance in this context, it is crucial to obtain an understanding of the connections to be addressed by several nations by implementing national action policies based on the One Health strategy. This review provides an overview of the progress made thus far and presents potential future directions to optimize the impact of nanobiotics on AMR.