Self-assembling peptide hydrogels promote microglial cells proliferation and NGF production
作者:Laura Chronopoulou、Anna Rita Togna、Giulia Guarguaglini、Giancarlo Masci、Francesca Giammaruco、Giuseppina Ines Togna、Cleofe Palocci
DOI:10.1039/c2sm25528f
日期:——
Peptidic hydrogels are an interesting class of materials, with potential applications in tissue engineering and controlled drug delivery. Fmoc–Phe3 self-assembling peptide was synthesized in an aqueous phase by using a lipase from Pseudomonas fluorescens. The bioconversion afforded a self-supporting hydrogel in only 10 minutes, a feature that seems very promising for biotechnological applications. The rheological properties of such material were studied. The peptide hydrogel, used as a scaffold for culturing rat microglial cells, induced a significant cell proliferation and an increased production of the neurotrophic factor NGF. Moreover, microscopy studies demonstrated that the hydrogel was able to promote microglial cell adhesion.
肽类水凝胶是一种有趣的材料,具有组织工程和控制药物递送的应用潜力。通过使用来自荧光假单胞菌的脂肪酶,在水中合成了Fmoc-苯丙氨酸3自组装肽。生物转化在仅10分钟内就形成了一种自支撑水凝胶,这一特性似乎对生物技术应用非常有前景。研究了这种材料的流变特性。将这种肽水凝胶用作大鼠小胶质细胞培养的支架,能显著促进细胞增殖并增加神经营养因子NGF的产生。此外,显微镜研究显示,水凝胶能够促进小胶质细胞的粘附。