Intrauterine Undernourishment Alters TH1/TH2 Cytokine Balance and Attenuates Lung Allergic Inflammation in Wistar Rats

Autor(es)

Landgraf, Maristella A. ^{[1, 2]} ; Landgraf, Richardt G. ^[1] ; Silva, Reinaldo C. ^[3] ; Semedo, Patricia ^[3] ; Camara, Niels O. S. ^{[2, 3]} ; Fortes, Zuleica B. ^[4]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Paulo, Inst Ciencias Ambientais Quim & Farmaceut, BR-09972270 Sao Paulo - Brazil

^[2] Univ Sao Paulo, Inst Ciencias Biomed, Dept Imunol, Lab Imunol Transplantes, BR-05508 Sao Paulo - Brazil

^[3] Univ Fed Sao Paulo, Div Nefrol, Lab Imunol Clin & Expt, BR-09972270 Sao Paulo - Brazil

^[4] Univ Sao Paulo, Inst Ciencias Biomed, Dept Farmacol, BR-05508 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: CELLULAR PHYSIOLOGY AND BIOCHEMISTRY; v. 30, n. 3, p. 552-562, 2012.
• Citações Web of Science: 8

Resumo

IL-4 produced by Th2 cells can block cytokine production by Th1 cells, and Th1 IFN-gamma is known to counterregulate Th2 immune response, inhibiting allergic eosinophilia. As intrauterine undernutrition can attenuate lung inflammation, we investigated the influence of intrauterine undernourishment on the Th1/Th2 cytokine balance and allergic lung inflammation. Intrauterine undernourished offspring were obtained from dams fed 50% of the nourished diet of their counterparts and were immunized at 9 weeks of age. We evaluated the cell counts and cytokine protein expression in the bronchoalveolar lavage, mucus production and collagen deposition, and cytokine gene expression and transcription factors in lung tissue 21 days after ovalbumin immunization. Intrauterine undernourishment significantly reduced inflammatory cell airway infiltration, mucus secretion and collagen deposition, in rats immunized and challenged. Intrauterine undernourished rats also exhibited an altered cytokine expression profile, including higher TNF-alpha and IL-1 beta expression and lower IL-6 expression than well-nourished rats following immunization and challenge. Furthermore, the intrauterine undernourished group showed reduced ratios of the IL-4/IFN-gamma and the transcription factors GATA-3/T-Bet after immunization and challenge. We suggest that the attenuated allergic lung inflammation observed in intrauterine undernourished rats is related to an altered Th1/Th2 cytokine balance resulting from a reduced GATA-3/T-bet ratio. Copyright (C) 2012 S. Karger AG, Basel (AU)

• Processo FAPESP: 07/07139-3 - Investigando o papel da heme-oxigenase 1 em diferentes processos inflamatórios renais em modelos animais
• Beneficiário: Niels Olsen Saraiva Câmara
• Linha de fomento: Auxílio à Pesquisa - Temático
• Processo FAPESP: 09/09849-3 - Mecanismos inflamatórios envolvidos na progressão da doença renal secundária a hipertensão arterial em modelo de reprogramação fetal
• Beneficiário: Niels Olsen Saraiva Câmara
• Linha de fomento: Auxílio à Pesquisa - Regular
• Processo FAPESP: 10/01404-0 - Estudos in vivo e in vitro da participação da leptina em diferentes modelos de inflamação pulmonar: mediadores inflamatórios e vias de sinalização envolvidas
• Beneficiário: Richardt Gama Landgraf
• Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores
• Processo FAPESP: 12/02270-2 - Novos mecanismos celulares, moleculares e imunológicos das lesões renais agudas e crônicas: busca por novas estratégias terapêuticas
• Beneficiário: Niels Olsen Saraiva Câmara
• Linha de fomento: Auxílio à Pesquisa - Temático
• Processo FAPESP: 09/52119-6 - Participação da leptina em modelos de inflamação pulmonar alérgica e induzida por LPS: estudos in vivo e in vitro
• Beneficiário: Maristella de Almeida Vitta Landgraf
• Linha de fomento: Bolsas no Brasil - Pós-Doutorado