6 documents found, page 1 of 1
Interleukin-10 induces interferon-γ-dependent emergency myelopoiesis
Cardoso, A; Martins, AC; Maceiras, AR; Liu, W; Castro, I; Castro, AG; Bandeira, A; Di Santo, JP; Cumano, A; Li, Y; Vieira, P; Saraiva, MIn emergency myelopoiesis (EM), expansion of the myeloid progenitor compartment and increased myeloid cell production are observed and often mediated by the pro-inflammatory cytokine interferon gamma (IFN-γ). Interleukin-10 (IL-10) inhibits IFN-γ secretion, but paradoxically, its therapeutic administration to humans causes hematologic changes similar to those observed in EM. In this work, we use different in vi...
Mycobacterium tuberculosis associated with severe tuberculosis evades cytosolic...
Sousa, J; Cá, B; Maceiras, AR; Simões-Costa, L; Fonseca, KL; Fernandes, AI; Ramos, A; Carvalho, T; Barros, L; Magalhães, C; Chiner-Oms, Á; Machado, HGenetic diversity of Mycobacterium tuberculosis affects immune responses and clinical outcomes of tuberculosis (TB). However, how bacterial diversity orchestrates immune responses to direct distinct TB severities is unknown. Here we study 681 patients with pulmonary TB and show that M. tuberculosis isolates from cases with mild disease consistently induce robust cytokine responses in macrophages across multiple...
Mycobacterium tuberculosis associated with severe tuberculosis evades cytosolic...
Sousa, J; Cá, B; Maceiras, AR; Simões-Costa, L; Fonseca, KL; Fernandes, AI; Ramos, A; Carvalho, T; Barros, L; Magalhães, C; Chiner-Oms, Á; Machado, HGenetic diversity of Mycobacterium tuberculosis affects immune responses and clinical outcomes of tuberculosis (TB). However, how bacterial diversity orchestrates immune responses to direct distinct TB severities is unknown. Here we study 681 patients with pulmonary TB and show that M. tuberculosis isolates from cases with mild disease consistently induce robust cytokine responses in macrophages across multiple...
Predictors and outcomes of disseminated tuberculosis in an intermediate burden ...
Meira, L; Chaves, C; Araújo, D; Almeida, L; Boaventura, R; Ramos, A; Carvalho, T; Osório, NS; Castro, AG; Rodrigues, F; Guimarães, JT; Saraiva, MSetting: University-affiliated hospital located in Porto, North Portugal, an area with a low to intermediate incidence of tuberculosis (TB). Objective: To identify predictors and outcomes of disseminated TB (dTB). Design: A cohort of patients diagnosed with TB between 2007 and 2013 was retrospectively analysed. Patients with dTB criteria were characterized and compared to single organ TB cases. Factors independ...
Innate IFN-γ-Producing Cells Developing in the Absence of IL-2 Receptor Common ...
Resende, M; Cardoso, MS; Ribeiro, AR; Flórido, M; Borges, M; Castro, AG; Alves, NL; Cooper, AM; Appelberg, RIFN-γ is known to be predominantly produced by lymphoid cells such as certain subsets of T cells, NK cells, and other group 1 innate lymphoid cells. In this study, we used IFN-γ reporter mouse models to search for additional cells capable of secreting this cytokine. We identified a novel and rare population of nonconventional IFN-γ-producing cells of hematopoietic origin that were characterized by the expressio...
The rs5743836 polymorphism in TLR9 confers a population-based increased risk of...
Carvalho, A; Cunha, C; Almeida, AJ; Osório, NS; Saraiva, M; Teixeira-Coelho, M; Pedreiro, S; Torrado, E; Domingues, N; Gomes-Alves, AG; Marques, ANon-Hodgkin lymphoma (NHL) has been associated with immunological defects, chronic inflammatory and autoimmune conditions. Given the link between immune dysfunction and NHL, genetic variants in toll-like receptors (TLRs) have been regarded as potential predictive factors of susceptibility to NHL. Adequate anti-tumoral responses are known to depend on TLR9 function, such that the use of its synthetic ligand is b...