Data/hora: 18/06/2024 05:40:45

Biblioteca(s): | Embrapa Recursos Genéticos e Biotecnologia.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 1
Data corrente: | 06/01/2016
Data da última atualização: | 20/03/2023
Autoria: | FREIRE, M. S.; CANTUÁRIA, A. P. C.; LIMA, S. M. F.; ALMEIDA, J. A.; MURAD, A. M.; FRANCO, O. L.; REZENDE, T. M. B.
Afiliação: | MIRNA S. FREIRE, UCB; ANA PAULA C. CANTUÁRIA, UnB; STELLA M. F. LIMA, UCB; JEESER A. ALMEIDA, UCB; ANDRE MELRO MURAD, CENARGEN; OCTAVIO L. FRANCO, UCB; TAIA M. B. REZENDE, UCB.
Título: | NanoUPLC-MS(E) proteomic analysis of osteoclastogenesis downregulation by IL-4.
Ano de publicação: | 2015
Fonte/Imprenta: | Journal of Proteomics, v. 131, p. 8-16, 2015.
Idioma: | Português
Conteúdo: | Bone resorption is an important factor in bone homeostasis and imbalance can cause several diseases. In osteoimmunology, IL-4 has been described as an important factor in promoting M2 macrophage profile. In order to shed some light on the effect of IL-4 on osteoclast precursors in the presence of RANKL, cytokines and nitric oxide (NO) production and the proteomic profile were analyzed. The presence of IL-4 in in vitro osteoclastogenesis provides production of TNF-?, IL-1?, IL-1?, IL-10 and IL-12 at basal cell levels. Regarding NO production, IL-4 was sufficient to increase the basal NO levels. Proteomic analyses identified 877 global proteins. IL-4 in in vitro RANKL-mediated osteoclastogenesis leads to the expression of 118 proteins. The presence of rIL-4 in in vitro rRANKL-mediated-osteoclastogenesis downregulated this process. However, the proteomics findings in the osteoclastogenesis demonstrated a much greater effect on osteoclast precursor cells than on RANKL-differentiated osteoclasts. These results suggest that the main effect of IL-4 in pre-osteoclast cells leads to a M2 macrophage activation, and this probably contributed to a reduction in osteoclastogenesis when both stimuli were used. This study noticed that IL-4 plays an important regulatory role in bone homeostasis due to its suppressive potential of precursor osteoclast cells.
Palavras-Chave: | NanoUPLC-MSE; Osteoimmunology.
Thesaurus Nal: | bone resorption; interleukin-4.
Categoria do assunto: | --
Registro original: | Embrapa Recursos Genéticos e Biotecnologia (CENARGEN)
Exemplares: | CENARGEN - (36146-1) - UPC - AP - DD - SP 20818 -  - SP 20818 - DIS