Project Title
Unraveling the differences between mild and severe hantavirus infected patients: delineating mechanisms to propose novel therapies
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Internal ID
1201240
Principal Investigator
Start Date
2020
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Item type:Publication, NPC1 as a Modulator of Disease Severity and Viral Entry of SARSCoV- 2<jats:sec> <jats:title /> <jats:p>The COVID-19 plague is hitting mankind. Several viruses, including SARS-CoV-1, MERS-CoV, EBOV, and SARS-CoV-2, use the endocytic machinery to enter the cell. Genomic variants in NPC1, which encodes for the endo-lysosomal Niemann-Pick type C1 protein, restricts the host-range of viruses in bats and susceptibility to infections in humans. Lack of NPC1 and its pharmacological suppression inhibits many viral infections including SARS-CoV-1 and Type I Feline Coronavirus Infection. Antiviral effects of NPC1-inhibiting drugs for COVID-19 treatment should be explored.</jats:p> </jats:sec>2Scopus© Citations 11 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, An international, interlaboratory ring trial confirms the feasibility of an extraction-less “direct” RT-qPCR method for reliable detection of SARS-CoV-2 RNA in clinical samples(2022) ;Margaret G. Mills ;Emily Bruce ;Meei-Li Huang ;Jessica W. CrothersOllivier Hyrien<jats:p>Reverse transcription–quantitative polymerase chain reaction (RT-qPCR) is used worldwide to test and trace the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). “Extraction-less” or “direct” real time–reverse transcription polymerase chain reaction (RT-PCR) is a transparent and accessible qualitative method for SARS-CoV-2 detection from nasopharyngeal or oral pharyngeal samples with the potential to generate actionable data more quickly, at a lower cost, and with fewer experimental resources than full RT-qPCR. This study engaged 10 global testing sites, including laboratories currently experiencing testing limitations due to reagent or equipment shortages, in an international interlaboratory ring trial. Participating laboratories were provided a common protocol, common reagents, aliquots of identical pooled clinical samples, and purified nucleic acids and used their existing in-house equipment. We observed 100% concordance across laboratories in the correct identification of all positive and negative samples, with highly similar cycle threshold values. The test also performed well when applied to locally collected patient nasopharyngeal samples, provided the viral transport media did not contain charcoal or guanidine, both of which appeared to potently inhibit the RT-PCR reaction. Our results suggest that direct RT-PCR assay methods can be clearly translated across sites utilizing readily available equipment and expertise and are thus a feasible option for more efficient COVID-19 coronavirus disease testing as demanded by the continuing pandemic.</jats:p>3Scopus© Citations 2 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Viral shedding and viraemia of Andes virus during acute hantavirus infection: a prospective study(2024) ;Marcela Ferrés ;Constanza Martínez-Valdebenito ;Carolina Henriquez ;Claudia MarcoJenniffer Angulo10Scopus© Citations 45 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Hantavirus in humans: a review of clinical aspects and management(2023) ;Pablo A Vial ;Marcela Ferrés; ;Jonas KlingströmClas Ahlm79Scopus© Citations 195 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Comparison of VSV Pseudovirus and Focus Reduction Neutralization Assays for Measurement of Anti-Andes orthohantavirus Neutralizing Antibodies in Patient Samples(2020); ;Annalis Whitaker ;Jan Wilhelm ;Jimena OvalleRuth Perez4Scopus© Citations 10 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Targeted high volume hemofiltration could avoid extracorporeal membrane oxygenation in some patients with severe Hantavirus cardiopulmonary syndrome(2021); ;Rodrigo Pérez‐Araos ;Álvaro Salazar ;Mauricio EspinozaAnalia Cuiza1Scopus© Citations 15 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Evaluation of the Immune Response Induced by CoronaVac 28-Day Schedule Vaccination in a Healthy Population Group(2022) ;Alejandro Escobar ;Felipe E. Reyes-López ;Mónica L. Acevedo ;Luis Alonso-PalomaresFernando Valiente-Echeverría<jats:p>CoronaVac vaccine from Sinovac Life Science is currently being used in several countries. In Chile, the effectiveness of preventing hospitalization is higher than 80% with a vaccination schedule. However, to date, there are no data about immune response induction or specific memory. For this reason, we recruited 15 volunteers without previous suspected/diagnosed COVID-19 and with negative PCR over time to evaluate the immune response to CoronaVac 28 and 90 days after the second immunization (dpi). The CoronaVac administration induces total and neutralizing anti-spike antibodies in all vaccinated volunteers at 28 and 90 dpi. Furthermore, using ELISpot analysis to assay cellular immune responses against SARS-CoV-2 spike protein, we found an increase in IFN-gamma- and Granzyme B-producing cells in vaccinated volunteers at 28 and 90 dpi. Together, our results indicate that CoronaVac induces a robust humoral immune response and cellular immune memory of at least 90 dpi.</jats:p>23Scopus© Citations 19 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Immunopathological signatures in multisystem inflammatory syndrome in children and pediatric COVID-19(2022) ;Keith Sacco ;Riccardo Castagnoli ;Svetlana Vakkilainen ;Can LiuOttavia M. DelmonteScopus© Citations 204 11 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Proteinuria in Hantavirus Cardiopulmonary Syndrome: A Frequent Finding Linked To Mortality(2021); ;Gregory Mertz; ;Mauricio EspinozaMarcela Ferrés27Scopus© Citations 9 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Assessing Pulmonary Epithelial Damage in Hantavirus Cardiopulmonary Syndrome: Challenging the Predominant Role of Vascular Endothelium through sRAGE as a Potential Biomarker(2023) ;Gabriela Meza-Fuentes; ; ; Hantavirus cardiopulmonary syndrome (HCPS) is a severe respiratory illness primarily associated with microvascular endothelial changes, particularly in the lungs. However, the role of the pulmonary epithelium in HCPS pathogenesis remains unclear. This study explores the potential of soluble Receptors for Advanced Glycation End-products (sRAGE) as a biomarker for assessing pulmonary epithelial damage in severe HCPS, challenging the prevailing view that endothelial dysfunction is the sole driver of this syndrome. We conducted a cross-sectional study on critically ill HCPS patients, categorizing them into mild HCPS, severe HCPS, and negative control groups. Plasma sRAGE levels were measured, revealing significant differences between the severe HCPS group and controls. Our findings suggest that sRAGE holds promise as an indicator of pulmonary epithelial injury in HCPS and may aid in tracking disease progression and guiding therapeutic strategies. This study brings clarity on the importance of investigating the pulmonary epithelium’s role in HCPS pathogenesis, offering potential avenues for enhanced diagnostic precision and support in this critical public health concern.1Scopus© Citations 6