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Narrow-leafed lupin (Lupinus angustifolius L.) β-conglutin proteins modulate the insulin signaling pathway as potential type 2 diabetes treatment and inflammatory-related disease amelioration

AutorLima Cabello, Elena; Alché Ramírez, Víctor; Foley, Rhonda C.; Andrikopoulos, Sofianos; Morahan, Grant; Singh, Karam B.; Alché Ramírez, Juan de Dios; Jiménez-López, José Carlos
Palabras claveType 2 diabetes
Anti-inflammator
Vicilin
Sweet lupins
PI3-kinase
Legumes
GLUT-4/IL-1
Antioxidant
Fecha de publicación2017
EditorJohn Wiley & Sons
CitaciónMolecular Nutrition and Food Research 61 (2017)
ResumenScope: We have investigated the potential use of β-conglutin protein isoforms from narrow-leafed lupin (Lupinus angustifolius L.) as a diabetes treatment. Methods and results: We produced purified recombinant β1-, β2-, β3-, β4-, and β6-conglutin proteins and showed that β1, β3, and β6 could bind to insulin. To assess β-conglutin proteins modulatory effect on insulin activation meditated kinases, whole blood and peripheral blood mononuclear cell cultures from type 2 diabetes (T2D) and healthy control subjects (C) were incubated with conglutin proteins. The treatment of peripheral blood mononuclear cells from T2D patients with β1, β3, and β6 proteins increased up to threefold mRNA and protein levels of genes important in insulin signaling pathways, namely insulin receptor substrate 1/p85/AKT/glucose transporter type 4. This was accompanied by a comparable fold-change decrease in the mRNA expression level of pro-inflammatory genes (iNOS and IL-1β) and proteins compared to healthy controls. The β2 and β4 isoforms had no effect on the insulin signaling pathway. However, these β-conglutin proteins elicited pro-inflammatory effects since levels of mRNA and proteins of inducible nitric oxide synthase and IL 1 beta were increased. Conclusion: Our results raise the possibility of using these particular β-conglutin proteins in the prevention and treatment of diabetes, as well as their potential as anti-inflammatory molecules.
URIhttp://hdl.handle.net/10261/164814
Identificadoresdoi: 10.1002/mnfr.201600819
e-issn: 1613-4133
issn: 1613-4125
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