例如:"lncRNA", "apoptosis", "WRKY"

IL-1α promotes liver inflammation and necrosis during blood-stage Plasmodium chabaudi malaria.

Sci Rep. 2019 May 20;9(1):7575
Maria Nogueira de Menezes 1 , Érika Machado Salles 2 , Flávia Vieira 2 , Eduardo Pinheiro Amaral 2 , Vanessa Zuzarte-Luís 3 , Alexandra Cassado 2 , Sabrina Epiphanio 4 , José Maria Alvarez 2 , José Carlos Alves-Filho 5 , Maria Manuel Mota 3 , Maria Regina D'Império-Lima 6
Maria Nogueira de Menezes 1 , Érika Machado Salles 2 , Flávia Vieira 2 , Eduardo Pinheiro Amaral 2 , Vanessa Zuzarte-Luís 3 , Alexandra Cassado 2 , Sabrina Epiphanio 4 , José Maria Alvarez 2 , José Carlos Alves-Filho 5 , Maria Manuel Mota 3 , Maria Regina D'Império-Lima 6
+ et al

[No authors listed]

Author information
  • 1 Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil. menezesnmaria@usp.br.
  • 2 Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil.
  • 3 Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.
  • 4 Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, Brazil.
  • 5 Escola de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil.
  • 6 Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil. relima@usp.br.

摘要


Malaria causes hepatic inflammation and damage, which contribute to disease severity. The pro-inflammatory cytokine interleukin (IL)-1α is released by non-hematopoietic or hematopoietic cells during liver injury. This study established the role of IL-1α in the liver pathology caused by blood-stage P. chabaudi malaria. During acute infection, hepatic inflammation and necrosis were accompanied by NLRP3 inflammasome-independent IL-1α production. Systemically, IL-1α deficiency attenuated weight loss and hypothermia but had minor effects on parasitemia control. In the liver, the absence of IL-1α reduced the number of TUNEL+ cells and necrotic lesions. This finding was associated with a lower inflammatory response, including TNF-α production. The main source of IL-1α in the liver of infected mice was inflammatory cells, particularly neutrophils. The implication of IL-1α in liver inflammation and necrosis caused by P. chabaudi infection, as well as in weight loss and hypothermia, opens up new perspectives for improving malaria outcomes by inhibiting IL-1 signaling.