College of Material Science and Engineering, Hunan University, Changsha, Hunan, 410082, China.
College of Biology, Hunan University, Changsha, Hunan, 410082, China.
J Mater Chem B. 2022 Sep 21;10(36):7030-7044. doi: 10.1039/d2tb01247b.
3D bioprinting is a major area of interest in health sciences for customized manufacturing, but lacks specific bioinks to enhance the shape fidelity of 3D bioprinting and efficiency of tissue repair for particular clinical purposes. A naringin derived bioink, which contains 1.5 mM methylacryloyl naringin and 0.15 mM methylacryloyl gelatin, improves the fidelity of 3D bioprinting due to 405 nm light absorption of methylacryloyl naringin. The naringin derived bioink promotes the growth of chondrocytes due to preserving bioactivities of naringin and functions as a medical ingredient from which it has been described as a medical bioink in this study. It facilitates cartilage regeneration by upregulating the transcription of chondrogenesis-related genes like and genes against oxidative stress like and and maintains chondrocytes active resulting from the significantly enhanced / ratio. According to a rabbit cartilage defect model, the proposed naringin derived medical bioink significantly improves the efficiency and quality of cartilage defect repair, suggesting that the bioink is suitable for cartilage defect repair applications and a feasible strategy is provided for the formulation of medical bioinks for specific clinical purposes.
3D 生物打印是健康科学中一个重要的研究领域,适用于定制化制造,但缺乏特定的生物墨水来提高 3D 生物打印的形状保真度和特定临床用途的组织修复效率。一种柚皮苷衍生的生物墨水,含有 1.5mM 甲基丙烯酰基柚皮苷和 0.15mM 甲基丙烯酰基明胶,由于甲基丙烯酰基柚皮苷在 405nm 光的吸收,提高了 3D 生物打印的保真度。由于柚皮苷的生物活性得以保留,柚皮苷衍生的生物墨水促进了软骨细胞的生长,并发挥了医学成分的作用,因此在本研究中被描述为一种医学生物墨水。它通过上调软骨形成相关基因如 和抗氧化应激基因如 和 的转录来促进软骨再生,并通过显著增强 / 比值来维持软骨细胞的活性。根据兔软骨缺损模型,所提出的柚皮苷衍生的医学生物墨水显著提高了软骨缺损修复的效率和质量,表明该生物墨水适用于软骨缺损修复应用,并为针对特定临床用途的医学生物墨水的配方提供了一种可行的策略。