Diaz-Gomez Luis, Alvarez-Lorenzo Carmen, Concheiro Angel, Silva Maite, Dominguez Fernando, Sheikh Faheem A, Cantu Travis, Desai Raj, Garcia Vanessa L, Macossay Javier
Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Santiago de Compostela, 15872 Santiago de Compostela, Spain; Instituto de Ortopedia y Banco de Tejidos Musculoesqueléticos, Universidad de Santiago de Compostela, 15872 Santiago de Compostela, Spain.
Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Santiago de Compostela, 15872 Santiago de Compostela, Spain.
Mater Sci Eng C Mater Biol Appl. 2014 Jul 1;40:180-8. doi: 10.1016/j.msec.2014.03.065. Epub 2014 Mar 31.
Biodegradable electrospun poly(ε-caprolactone) (PCL) scaffolds were coated with platelet-rich plasma (PRP) to improve cell adhesion and proliferation. PRP was obtained from human buffy coat, and tested on human adipose-derived mesenchymal stem cells (MSCs) to confirm cell proliferation and cytocompatibility. Then, PRP was adsorbed on the PCL scaffolds via lyophilization, which resulted in a uniform sponge-like coating of 2.85 (S.D. 0.14) mg/mg. The scaffolds were evaluated regarding mechanical properties (Young's modulus, tensile stress and tensile strain), sustained release of total protein and growth factors (PDGF-BB, TGF-β1 and VEGF), and hemocompatibility. MSC seeded on the PRP-PCL nanofibers showed an increased adhesion and proliferation compared to pristine PCL fibers. Moreover, the adsorbed PRP enabled angiogenesis features observed as neovascularization in a chicken chorioallantoic membrane (CAM) model. Overall, these results suggest that PRP-PCL scaffolds hold promise for tissue regeneration applications.
可生物降解的静电纺聚己内酯(PCL)支架用富血小板血浆(PRP)进行了涂层处理,以改善细胞黏附和增殖。PRP取自人血沉棕黄层,并在人脂肪来源的间充质干细胞(MSC)上进行测试,以确认细胞增殖和细胞相容性。然后,通过冻干法将PRP吸附在PCL支架上,形成了均匀的海绵状涂层,涂层量为2.85(标准差0.14)mg/mg。对支架的力学性能(杨氏模量、拉伸应力和拉伸应变)、总蛋白和生长因子(血小板衍生生长因子BB、转化生长因子β1和血管内皮生长因子)的缓释情况以及血液相容性进行了评估。与原始PCL纤维相比,接种在PRP-PCL纳米纤维上的MSC表现出更强的黏附和增殖能力。此外,吸附的PRP在鸡胚绒毛尿囊膜(CAM)模型中呈现出血管生成特征,表现为新血管形成。总体而言,这些结果表明PRP-PCL支架在组织再生应用方面具有潜力。