CAMILA MALTA ROMANO
Projetos de Pesquisa
Unidades Organizacionais
LIM/52 - Laboratório de Virologia, Hospital das Clínicas, Faculdade de Medicina
15 resultados
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- First case report of monkeypox in Brazil: clinical manifestations and differential diagnosis with sexually transmitted infections(2022) LIMA, Evelyn Lepka de; BARRA, Luiz Alberto Costa; BORGES, Luciana Marques Sansao; MEDEIROS, Lucas Alberto; TOMISHIGE, Marcia Y. S.; SANTOS, Lucas de Souza Loureiro Abbud; SILVA, Anderson Jose Dias da; RODRIGUES, Camila Cristina Martini; AZEVEDO, Luiz Cesar Fernandes de; VILLAS-BOAS, Lucy Santos; SILVA, Camila Alves Maia da; COLETTI, Thais Moura; MANULI, Erika R.; CLARO, Ingra Morales; ROMANO, Camila Malta; RAMUNDO, Mariana Severo; MOUTINHO, Tomas; SABINO, Ester Cerdeira; LINDOSO, Jose Angelo Lauletta; FIGUEIREDO-MELLO, ClaudiaIn 2022, an outbreak of monkeypox is being reported in non-endemic areas, with unusual clinical manifestations. The detailed clinical description of the first patient that received the diagnosis of monkeypox in Brazil is reported here, whose clinical manifestations can easily lead to misdiagnosis of sexually transmitted infections. A 41 years old male presented to an emergency room with a vesicular rash with eight days of evolution. He had traveled to Portugal and Spain and reported non-penetrative sexual involvement with three different male individuals. On the third day of symptoms, he sought medical care and received empirical treatment directed to sexually transmitted infections. As the symptoms did not improve, he sought medical attention at an infectious disease referral center presenting, on admission, an ulcerated penile lesion with central necrotic crusts, a disseminated pleomorphic skin rash and an oropharyngeal ulcer. The monkeypox diagnosis was suspected due to the characteristics of the lesions and the history of intimate contact with casual partners, and it was later confirmed by sequencing the almost complete monkeypox genome. The patient was hospitalized for pain control, which required opiate administration. He developed a secondary bacterial infection on the penile lesions, which were treated with oral antibiotics. He was discharged after 14 days, with lesions in process of re-epithelialization. Given the current outbreak, we must consider the possibility of monkeypox in patients with suggestive lesions, anywhere on the body (including the genitals), added to an epidemiological link or history of intimate contact with strangers or casual partners.
- Intradermal Delivery of Dendritic Cell-Targeting Chimeric mAbs Genetically Fused to Type 2 Dengue Virus Nonstructural Protein 1(2020) PEREIRA, Lennon Ramos; VICENTIN, Elaine Cristina Matos; PEREIRA, Sara Araujo; MAEDA, Denicar Lina Nascimento Fabris; ALVES, Rubens Prince dos Santos; ANDREATA-SANTOS, Robert; SOUSA, Francielle Tramontini Gomes de; YAMAMOTO, Marcio Massao; CASTRO-AMARANTE, Maria Fernanda; FAVARO, Marianna Teixeira de Pinho; ROMANO, Camila Malta; SABINO, Ester Cerdeira; BOSCARDIN, Silvia Beatriz; FERREIRA, Luis Carlos de SouzaTargeting dendritic cells (DCs) by means of monoclonal antibodies (mAbs) capable of binding their surface receptors (DEC205 and DCIR2) has previously been shown to enhance the immunogenicity of genetically fused antigens. This approach has been repeatedly demonstrated to enhance the induced immune responses to passenger antigens and thus represents a promising therapeutic and/or prophylactic strategy against different infectious diseases. Additionally, under experimental conditions, chimeric alpha DEC205 or alpha DCIR2 mAbs are usually administered via an intraperitoneal (i.p.) route, which is not reproducible in clinical settings. In this study, we characterized the delivery of chimeric alpha DEC205 or alpha DCIR2 mAbs via an intradermal (i.d.) route, compared the elicited humoral immune responses, and evaluated the safety of this potential immunization strategy under preclinical conditions. As a model antigen, we used type 2 dengue virus (DENV2) nonstructural protein 1 (NS1). The results show that the administration of chimeric DC-targeting mAbs via the i.d. route induced humoral immune responses to the passenger antigen equivalent or superior to those elicited by i.p. immunization with no toxic effects to the animals. Collectively, these results clearly indicate that i.d. administration of DC-targeting chimeric mAbs presents promising approaches for the development of subunit vaccines, particularly against DENV and other flaviviruses.
- Characterization of insect-specific Culex flavivirus (Flaviviridae) nucleotide sequences in mosquitoes from urban parks in Sao Paulo, Brazil(2022) COLETTI, Thais de Moura; ROMANO, Camila Malta; URBINATTI, Paulo Roberto; TEIXEIRA, Renildo Souza; PEDROSA, Leila Weiss de Almeida; NARDI, Marcello Schiavo; NATAL, Delsio; COSTA, Antonio Charlys da; JESUS, Jaqueline Goes de; CLARO, Ingra Morales; SABINO, Ester Cerdeira; WITKIN, Steven S.; MARRELLI, Mauro Toledo; FERNANDES, Licia NatalBackground: Despite their worldwide occurrence, the distribution and role of insect-specific flaviviruses (ISFs) remain unclear. Methods: We evaluated the presence of ISFs in mosquitoes collected in Sao Paulo, Brazil, using reverse transcription and semi-nested polymerase chain reaction (PCR). Some of the positive samples were subjected to nanopore sequencing. Results: Twelve mosquito pools (2.8%) tested positive for flavivirus infection. Nanopore sequencing was successfully performed on six samples. Phylogenetic analysis grouped these sequences into genotype 2 of Culex flavivirus (CxFV). Conclusions: The identification of CxFV genotype 2 at new locations in Sao Paulo highlights the importance of understanding the role of ISFs in mosquito vector competence.
- First case of SARS-COV-2 sequencing in cerebrospinal fluid of a patient with suspected demyelinating disease(2020) DOMINGUES, Renan Barros; MENDES-CORREA, Maria Cassia; LEITE, Fernando Brunale Vilela de Moura; SABINO, Ester Cerdeira; SALARINI, Diego Zanotti; CLARO, Ingra; SANTOS, Daniel Wagner; JESUS, Jaqueline Goes de; FERREIRA, Noely Evangelista; ROMANO, Camila Malta; SOARES, Carlos Augusto SenneThe association between coronaviruses and central nervous system (CNS) demyelinating lesions has been previously shown. However, no case has been described of an association between the novel coronavirus (SARS-COV-2) and CNS demyelinating disease so far. SARS-COV-2 was previously detected in cerebrospinal fluid (CSF) sample of a patient with encephalitis. However, the virus identity was not confirmed by deep sequencing of SARS-COV-2 detected in the CSF. Here, we report a case of a patient with mild respiratory symptoms and neurological manifestations compatible with clinically isolated syndrome. The viral genome of SARS-COV-2 was detected and sequenced in CSF with 99.74-100% similarity between the patient virus and worldwide sequences. This report suggests a possible association of SARS-COV-2 infection with neurological symptoms of demyelinating disease, even in the absence of relevant upper respiratory tract infection signs.
- Low frequency of SARS-CoV2 infection in daycare centers during the reopening of school activities in the Southeast's poor area of Brazil(2022) SOARES, Graciela dos Santos; MORAIS, Lucas Vinicius; SILVA, Kevin Cezar Nascimento; FERREIRA, Elaine Moura; SHIO, Marina Tiemi; ROMANO, Camila Malta; CONDE, Carla Regiani; SABINO, Ester Cerdeira; FRANCA, Carolina Nunes; NALI, Luiz HenriqueSARS-Cov2 has already infected over 482 million people and caused more than 6.1 million deaths. The beginning of the pandemic has led the health authorities of several countries to adopt non-pharmacological preventive measures such as daycare closures. The reopening took place when the country had the highest rates of infection and mortality (mainly due to the gamma variant (P.1) outbreak) and the beginning of the vaccination program. Therefore, we aimed to investigate the prevalence of SARS-CoV2 in daycare after educational activities resumed. The study was conducted in seven childcare facilities. Swab samples from the nasopharynx were collected from children and staff members. The viral RNA was obtained through PureLink RNA extraction kit purification and SARS-CoV2 presence was detected using the All plex SARS-CoV2 kit. The study population included 201 participants, including daycare workers and children. The average age of the workers and children is 40 and 3 years old, respectively. Among the children, 47.5% are female and among the workers, 91.4%. One (0.5%) test came out positive for the presence of SARS-CoV-2, which was from a sample of an asymptomatic childcare worker, and no secondary infections were detected. Considering that the return to daycare activities occurred during a period with a high number of deaths and a lack of vaccines throughout the country, the small number of cases indicates the effectiveness of the several preventive measures used by daycare centers in preventing SARS-CoV2 transmission.
- SARS-CoV-2 reinfection caused by the P.1 lineage in Araraquara city, Sao Paulo State, Brazil(2021) ROMANO, Camila Malta; FELIX, Alvina Clara; PAULA, Anderson Vicente de; JESUS, Jaqueline Goes de; ANDRADE, Pamela S.; CANDIDO, Darlan; OLIVEIRA, Franciane M. de; RIBEIRO, Andreia C.; SILVA, Francini C. da; INEMAMI, Marta; COSTA, Angela Aparecida; LEAL, Cibele O. D.; FIGUEIREDO, Walter Manso; PANNUTI, Claudio Sergio; SOUZA, William M. de; FARIA, Nuno Rodrigues; SABINO, Ester CerdeiraReinfection by the severe acute respiratory syndrome coronavirus type 2 (SARS-COV-2) has been reported in many countries, suggesting that the virus may continue to circulate among humans despite the possibility of local herd immunity due to massive previous infections. The emergence of variants of concern (VOC) that are more transmissible than the previous circulating ones has raised particular concerns on the vaccines effectiveness and reinfection rates. The P.1 lineage was first identified in December 2020 in Manaus city and is now globally spread. We report the first case of reinfection of SARS-CoV-2 caused by the P.1 variant outside of Manaus. The potential of these new variants to escape naturally and vaccine-induced immunity highlights the need for a global vigilance.
- First report of Aedes albopictus infected by Dengue and Zika virus in a rural outbreak in Brazil(2020) REZENDE, Helder Ricas; ROMANO, Camila Malta; CLARO, Ingra Morales; CALEIRO, Giovana Santos; SABINO, Ester Cerdeira; FELIX, Alvina Clara; BISSOLI, Jefferson; HILL, Sarah; FARIA, Nuno Rodrigues; SILVA, Theresa Cristina Cardoso da; SANTOS, Ana Paula Brioschi; CERUTTI JUNIOR, Crispim; VICENTE, Creuza RachelIn Brazil, Dengue (DENV) and Zika (ZIKV) viruses are reported as being transmitted exclusively by Aedes aegypti in urban settings. This study established the vectors and viruses involved in an arbovirus outbreak that occurred in 2019 in a rural area of Espi ' rito Santo state, Brazil. Mosquitoes collected were morphologically identified, sorted in samples, and submitted to molecular analysis for arboviruses detection. Phylogenetic reconstruction was performed for the viral sequence obtained. All 393 mosquitoes were identified as Aedes albopictus. DENV-1 genotype V was present in one sample and another sample was positive for ZIKV. The DENV-1 clustered with viruses that have circulated in previous years in large urban centers of different regions in Brazil. This is the first report of A. albopictus infected by DENV and ZIKV during an outbreak in a rural area in Brazil, indicating its involvement in arboviral transmission. The DENV-1 strain found in the A. albopictus was not new in Brazil, being involved previously in epidemics related to A. aegypti, suggesting the potential to A. albopictus in transmitting viruses already circulating in the Brazilian population. This finding also indicates the possibility of these viruses to disperse across urban and rural settings, imposing additional challenges for the control of the diseases.
- Serum from dengue virus-infected patients with and without plasma leakage differentially affects endothelial cells barrier function in vitro(2017) CARDOZO, Francielle Tramontini Gomes de Sousa; BAIMUKANOVA, Gyulnar; LANTERI, Marion Christine; KEATING, Sheila Marie; FERREIRA, Frederico Moraes; HEITMAN, John; PANNUTI, Claudio Sergio; PATI, Shibani; ROMANO, Camila Malta; SABINO, Ester CerdeiraBackground Although most of cases of dengue infections are asymptomatic or mild symptomatic some individuals present warning signs progressing to severe dengue in which plasma leakage is a hallmark. Methodology/Principal findings The present study used Electric Cell-substrate Impedance Sensing (ECIS (R)) which allows for electrical monitoring of cellular barrier function measuring changes in Transendothelial Electric Resistance (TEER) to investigate the parameters associated with dengue induced leakage. Three groups of individuals were tested: dengue-positives with plasma leakage (leakage), dengue-positives without plasma leakage (no leakage), and dengue-negatives (control). Data show that TEER values of human umbilical vein endothelial cells (HUVECs) was significantly lower after incubation with serum from subjects of the leakage group in comparison to the no leakage or control groups. The serum levels of CXCL1, EGF, eotaxin, IFN-gamma, sCD40L, and platelets were significantly decreased in the leakage group, while IL-10, IL-6, and IP-10 levels were significantly increased. We also found a strong correlation between TEER values and augmented levels of IP-10, GM-CSF, IL-1 alpha, and IL-8, as well as decreased levels of CXCL1 and platelets. Conclusions/Significance The present work shows that the magnitude of the immune response contributes to the adverse plasma leakage outcomes in patients and that serum components are important mediators of changes in endothelial homeostasis during dengue infections. In particular, the increased levels of IP-10 and the decreased levels of CXCL1 and platelets seem to play a significant role in the disruption of vascular endothelium associated with leakage outcomes after DENV infection. These findings may have important implications for both diagnostic and therapeutic approaches to predict and mitigate vascular permeabilization in those experiencing the most severe clinical disease outcomes after dengue infection.
conferenceObject AGARICUS BRASILIENSIS SULFATED POLYSACCHARIDE INHIBITS DENGUE VIRUS INFECTION AND DENGUE VIRUS NS1-MEDIATED PATHOGENESIS(2019) SOUSA, Francielle Tramontini Gomes de; ROMANO, Camila Malta; SABINO, Ester Cerdeira; HARRIS, Eva- Anti-Zika virus activity of several abietane-type ferruginol analogues(2020) SOUSA, Francielle T. G.; NUNES, Cristina; ROMANO, Camila Malta; SABINO, Ester Cerdeira; GONZALEZ-CARDENETE, Miguel AngelAbietane diterpenoids are naturally occurring plant metabolites with a broad spectrum of biological effects including antibacterial. antileishmanial, antitumor, antioxidant, as well as antiinfiammatory activities. Recently, we found that some analogues of natural ferruginol (2) actively inhibited dengue virus 2 (DENV-2) replication. Due to the similarity with DENY, we envisaged that abietane diteipenoids would also be active against Zika virus (ZIKV). Six selected semi-synthetic abietane derivatives of (+)-dehydroabietylatnine (3) were tested. Cytotoxicity was determined by Mn' assay in Vero cells. In vitro anti-ZIKV (clinical isolate. imT17) activity was evaluated by plaque assay. Interestingly, these molecules showed potential as anti-ZIKV agents, with EC50 values ranging from 0.67 to 18.57 mu M. and cytotoxicity (CC50 values) from 256 to 35.09 mu M. The 18-Oxoferruginol (8) (EC50 = 2.60 mu M, SI = 13.51) and 12-nitro-N-benzoyldehydroabietylamine (9) (ECG 0.67 mu M, SI = 3.82) were the most active compounds, followed by 12-hydroxy-N-tosyldehydroabietylamine (7) (EC50 = 3.58 mu M, SI = 3.20) and 12-hydroxy-N,N-phthaloyldehydroabietylamine (5) (EC50 = 7.76 mu M, SI = 1.23). To the best of our knowledge, this is the first report on anti-Zika virus properties of abietanes.