48 documents found, page 1 of 5
Signature cytokine-associated transcriptome analysis of effector γδ T cells ide...
Inácio, Daniel; Amado, Tiago; Pamplona, Ana; Sobral, Daniel; Cunha, Carolina; Santos, Rita F.; Oliveira, Liliana; Rouquié, Nelly; Carmo, Alexandre M.γδ T cells producing either interleukin-17A (γδ17 cells) or interferon-γ (γδIFN cells) are generated in the mouse thymus, but the molecular regulators of their peripheral functions are not fully characterized. Here we established an Il17a-GFP:Ifng-YFP double-reporter mouse strain to analyze at unprecedented depth the transcriptomes of pure γδ17 cell versus γδIFN cell populations from peripheral lymph nodes. Wit...
Dissection of the microRNA transcriptomes of CD4+ T cell subsets in autoimmune ...
Cunha, Carolina; Romero, Paula Vargas; Inácio, Daniel; Pais, Ana Teresa; Pelicano, Catarina; Costa, Marina; Mensurado, Sofia; Gonçalves-Sousa, NatachaMicroRNAs (miRNAs) are key regulators of CD4+ T cell differentiation, but how they contribute to the course of an autoimmune disease in vivo remains poorly studied. Given the known roles in autoimmunity of pro-inflammatory T helper 1 (Th)1 and Th17 cells, and anti-inflammatory Foxp3+ regulatory cells, we established a triple reporter mouse for Ifng, Il17 and Foxp3, and subjected it to experimental autoimmune en...
An endoribonuclease of the YicC-like family delays sporulation via sRNA degrada...
Martins, Diogo; Salgueiro, Bruno; Sobral, Daniel; Gragera, Marcos; Hensel, Zach; Henriques, Adriano O.; Romão, Célia V.; Serrano, MónicaClostridioides difficile CD25890 is a YicC-like endoribonuclease involved in regulating sporulation initiation, a process critical for the host-host transmission of this anaerobic pathogen. Using comparative transcriptomics we identified a small RNA, SQ528, that accumulates at higher levels in a CD25890 deletion mutant and we show that purified CD25890 cleaves SQ528 in a metal-dependent manner. Moreover, the ov...
Mpox in People Living with HIV: Clinical Challenges, Preventive Strategies and ...
Cordeiro, Rita; Caria, João; Sobral, Daniel; Póvoas, DianaMonkeypox virus (MPXV) re-emerged in 2022 with a global outbreak that affected more than 100,000 individuals worldwide. People living with HIV (PLWH) accounted for a substantial proportion of cases, raising concerns about disease presentation, management, and outcomes in this population. Evidence indicates that PLWH with advanced or uncontrolled HIV infection experienced more severe mpox, with higher hospitaliz...
European pilot interlaboratory comparison study on Mpox virus whole genome sequ...
Fuchs, Jonas; Bertelli, Claire; Pillonel, Trestan; Cordeiro, Rita; Izopet, Jacques; Pasquier, Christophe; Lewandowski, Kuiama; Maks, AnastasijaObjectives: Since 2022, distinct Mpox virus (MPXV) clades have been spreading across different geographic regions, causing a challenging epidemiological situation. Whole genome sequencing (WGS) proved to be instrumental for patient management and global public health. We report a pilot interlaboratory comparison study for MPXV WGS. Methods: We distributed noninfectious DNA samples, including the main MPXV clade...
Optimistic and pessimistic cognitive judgement bias modulates the stress respon...
Espigares, Felipe; Alvarado, M. Victoria; Abad-Tortosa, Diana; Varela, Susana A. M.; Sobral, Daniel; Faísca, Pedro; Paixão, Tiago; Oliveira, RuiCognitive judgement bias in decision-making under ambiguity occurs both in animals and humans, with some individuals interpreting ambiguous stimulus as positive (optimism) and others as negative (pessimism). We hypothesize that judgement bias is a personality trait and that individuals with a pessimistic bias would be more reactive to stressors and therefore more susceptible to stress-related diseases than opti...
Transcriptomic analysis and epigenetic regulators in human oocytes at different...
Caniçais, Carla; Sobral, Daniel; Vasconcelos, Sara; Cunha, Mariana; Pinto, Alice; Guimarães, Joana Mesquita; Santos, Fátima; Barros, AlbertoHuman oocytes are highly specialized cells with the capacity to store and regulate mRNAs during oocyte maturation, in preparation for post-fertilization steps. Here we performed single-oocyte transcriptomic analysis of human oocytes in three meitoic maturation stages - Germinal Vesicle (GV; n = 6), Metaphase I (MI; n = 6) and Metaphase II (MII; n = 7). Single-oocyte transcriptomic analysis revealed that the tot...
Signature cytokine-associated transcriptome analysis of effector γδ T cells ide...
Inácio, Daniel; Amado, Tiago; Pamplona, Ana; Sobral, Daniel; Cunha, Carolina; Santos, Rita F.; Oliveira, Liliana; Rouquié, Nelly; Carmo, Alexandre M.γδ T cells producing either interleukin-17A (γδ cells) or interferon-γ (γδ cells) are generated in the mouse thymus, but the molecular regulators of their peripheral functions are not fully characterized. Here we established an Il17a-GFP:Ifng-YFP double-reporter mouse strain to analyze at unprecedented depth the transcriptomes of pure γδ cell versus γδ cell populations from peripheral lymph nodes. Within a very...
Dengue and Oropouche virus co-infection in a traveller from Cuba to Portugal
Zé-Zé, Líbia; Laranjinha, Joana; Borges, Vítor; Graça, Ana Luísa; Sobral, Daniel; Santos, João Dourado; Carvalho, Ana Cláudia; Faria, Nuno R.In 2024, unprecedented outbreaks of dengue and Oropouche were reported in the Americas. We describe a documented co-infection with dengue and Oropouche viruses in a 35-year-old traveller from Cuba detected in Portugal. RT-PCR and next-generation sequencing confirmed both viruses. Our findings highlight the need for multiplex arboviral diagnostics in travellers from regions with concurrent outbreaks.
Multi-country and intersectoral assessment of cluster congruence between pipeli...
Mixão, Verónica; Pinto, Miguel; Brendebach, Holger; Sobral, Daniel; Santos, João Dourado; Radomski, Nicolas; Uldall, Anne Sophie MajgaardDifferent laboratories employ different Whole-Genome Sequencing (WGS) pipelines for Food and Waterborne disease (FWD) surveillance, casting doubt on the comparability of their results and hindering optimal communication at intersectoral and international levels. Through a collaborative effort involving eleven European institutes spanning the food, animal, and human health sectors, we aimed to assess the inter-p...