细胞培养技术是目前体外实验中最常用的方法。单层细胞培养因不能完全模拟多细胞相互作用的体内环境、细胞趋向单一化,而无法探讨多细胞间的相互关系,已不能满足研究者的需求。因此,为了满足科研需要,细胞共培养技术应运而生,其方法也在实践中不断改进:从直接接触到间接接触,从二维到三维,细胞共培养模型更接近人体内环境,更有利于研究细胞与细胞之间的相互作用。目前,共培养技术已经被很多学者用于体外生理及病理模型、组织工程、细胞分化研究,为药物研发(包括中药研发)、药物分析以及药物作用机制及部位等研究热点。对有关细胞共培养方法的研究进行综述,总结各种方法的优点和不足,以促进细胞培养方法的不断改进,从而建立更加接近人体的多种细胞共培养体系,甚至模拟人体内循环的体外模型。
Cell culture technology is the most commonly used method in the in vitro experiments at present. However, monolayer cell culture technology has been unable to meet the demand of the researchers. This is because that monolayer cell culture cannot mimic the cellular environment in which multiple cells interact with each other in the body. We cannot discuss the relationship of many cells, because we do not know the relationship between cells through a single kind of cell. So cell co-culture medicine arises at the historic moment for the demand. With the development of research method in recent years, cell co-culture method also has been improved in practice: from direct contact co-cultures to indirect contact co-cultures, from two-dimensional co-cultures to three-dimensional co-cultures. Cell co-culture method is closer to the human body. It is also more advantageous to study the interaction among cells. Nowadays, there are more researchers tend to select this method to study the physiological and pathological in vitro model, tissue engineering, and cell differentiation research. At the same time, it has become the focus of drug research and development, drug analysis, mechanism of drug action, and drug targets. This article will review the studies of cell co-culture method, summarize advantages and disadvantages of various methods, so as to promote improvement of cell culture methods, to build cells co-culture system that more close to human body, and build the in vitro model that simulate internal circulation of human body further.