4 documents found, page 1 of 1
Zoonotic visceral leishmaniasis : new insights on innate immune response by blo...
Rodrigues, Armanda Viana; Valerio-Bolas, Ana; Alexandre-Pires, Graça; Aires Pereira, Maria; Nunes, Telmo; Ligeiro, Dario; Pereira da Fonseca, IsabelL. infantum is the aetiological agent of zoonotic visceral leishmaniasis (ZVL), a disease that affects humans and dogs. Leishmania parasites are well adapted to aggressive conditions inside the phagolysosome and can control the immune activation of macrophages (MØs). Although MØs are highly active phagocytic cells with the capacity to destroy pathogens, they additionally comprise the host cells for Leishmania i...
Early ART in Acute HIV-1 Infection: Impact on the B-Cell Compartment
Badura, Robert; Foxall, Russell B.; Ligeiro, Dario; Rocha, Miguel; Godinho-Santos, Ana; Trombetta, Amelia C.; Sousa, Ana E.HIV-1 infection induces B cell defects, not fully recovered upon antiretroviral therapy (ART). Acute infection and the early start of ART provide unique settings to address the impact of HIV on the B cell compartment. We took advantage of a cohort of 21 seroconverters, grouped according to the presence of severe manifestations likely mediated by antibodies or immune complexes, such as Guillain-Barré syndrome an...
Naive and stem cell memory T cell subset recovery reveals opposing reconstituti...
Soares, Maria Vieira; Azevedo, Rita I.; Ferreira, Ines; Bucar, Sara; Ribeiro, Ana C.; Vieira, Ana I. S.; Pereira, Paulo N G; Ribeiro, Ruy M.The success of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in the treatment of hematological malignancies remains hampered by life-threatening chronic graft vs. host disease (cGVHD). Although multifactorial in nature, cGVHD has been associated with imbalances between effector and regulatory T cells (Treg). To further elucidate this issue, we performed a prospective analysis of patients underg...
IL-10 overexpression predisposes to invasive aspergillosis by suppressing antif...
Cunha, Cristina; Gonçalves, Samuel M.; Duarte-Oliveira, Claudio; Leite, Luis; Lagrou, Katrien; Marques, António; Lupianez, Carmen B.; Mesquita, Inês[Excerpt] To the Editor: Proinflammatory immune responses are critically required for antimicrobial host defenses; however, excessive inflammation has the potential to damage host tissues thereby paradoxically contributing to the progression of infection.[...]