动物细胞大规模培养过程中细胞凋亡的检测与控制

动物细胞大规模培养技术是目前生物技术制药产业广泛采用的技术平台,凋亡是大规模培养过程中细胞的主要死亡方式。近些年来,细胞凋亡的形态学特征和分子机制已得到初步阐明,并由此开发出了一系列的细胞凋亡检测和控制方法,为提高大规模培养中的细胞活力发挥了重要作用。     

动物细胞培养用多孔载体的研制

多孔载体是一种新型的用于动物细胞培养的优秀的细胞支持物,其内部网状结构的小孔具有固定细胞和保护细胞免受机械损伤的功能,适合于贴壁细胞和悬浮细胞的培养,能提高培养密度,可应用于大规模培养系统。本文综述了多孔载体的物化性质、制作材料和制备方法。     

动物细胞大规模培养技术

近年来,动物细胞大规模培养技术在生物技术领域成为最受关注的热点之一,并开始广泛应用于生物医药的研发和生产过程中。以生物反应器技术为基础的动物细胞大规模培养技术平台,正逐步被建立起来并日益走向成熟,成为推动生物医药产业快速发展的有力工具。结合该技术目前的应用水平和最新进展,分析了不同细胞培养工艺之间的内在差异,以探索这一技术的未来发展方向。     

Studies on Tissue Culture ef Medicinal Plants VI. The Cost Question in the Cell Culture of Anisodus acutangulus

Both increased dry wt. of the culture cells and contents of hyoscyamine and scopolamine in the culture cells were decreased slightly (decreased about 1.2% and 2.9% respectively) when non-ionic water was used instead of redistilled water in the cell suspension culture of Anisodus acutangulus. But the non-ionic water could reduce costs largely, e.g. power cost etc. (can be reduced about 1030 yuantonne medium). Since non-ionic water can now be mass-produced easily, it suits the needs of industrial production in the future. The increased dry wt. of culture cells was a litter high and contents of two alkaloids was decreased slightly (about 5.4%) in the cell suspension culture of A. acutangulus when store confectioner’s sugar was used instead of sucrose. But the applied quantities of store confectioner’s sugar and costs could be reduce 50% and 88% respectively. The suspension cells of A. acutangulus contain rich amylase (average amylase activity was 4.37 mg reducing sugar/g, fresh wt./hour), so it could use starck as their only carbon source for the growth.     

Yali's Question: Sugar, Culture, and History

Yali's Question: Sugar, Culture, and History . Frederick Errington and Deborah Gewertz. Chicago: University of Chicago Press, 2004. 319 pp.