Navada Jyothi S, Koka Prasad S
Haffkine Institute, Mumbai, India.
J Stem Cells. 2016;11(3):171-179.
The regeneration patterns are innate, inherited and evolutionarily conserved mechanisms. In every individual there are certain cells and signaling networks which work together to proliferate the desired tissue lineages to replace the dead, lost and injured counter parts. This homeostasis mechanism keeps functioning of the organ system intact. There are some tissues such as skin, gut, blood, respiratory tract, uterine endometrium, testis must perpetually renew the majority of cells. As the aging advances the turnover potentials decreases under normal circumstances, some of these respond inefficiently to regenerative pressures (eg: brain and heart) while other respond quite well. Therefore creating an optimized micro environment using external means through non-invasive or invasive procedures preferably minimally by utilizing appropriately subjected stem cells/stem cell secretome to induce regeneration at the target sites where it does not take place spontaneously. Stem cell biology is one of the most attractive areas of biomedical research, as emerges for the execution of biotechnology towards the regenerative medicine continues to expand. The presumed potential of the stem cell populations with clonogenic capabilities are harnessed for the therapeutic applications. Advancements in the research technology and the idea of inducing innate regeneration by stem cell based approaches can generate the potential cure for many degenerative disorders, age related disabilities and accidental tissue damages.
再生模式是天生的、遗传的且在进化上保守的机制。在每个个体中,都有特定的细胞和信号网络共同作用,以使所需的组织谱系增殖,以替代死亡、丢失和受损的对应部分。这种稳态机制使器官系统的功能保持完整。有些组织,如皮肤、肠道、血液、呼吸道、子宫内膜、睾丸,必须不断更新大部分细胞。随着年龄的增长,在正常情况下,更新潜力会降低,其中一些组织对再生压力的反应效率低下(例如:大脑和心脏),而其他组织则反应良好。因此,通过非侵入性或侵入性程序,最好是通过利用适当处理的干细胞/干细胞分泌组,以最小的方式利用外部手段创造优化的微环境,在不能自发发生再生的靶位点诱导再生。干细胞生物学是生物医学研究中最具吸引力的领域之一,随着生物技术在再生医学中的应用不断扩展而兴起。具有克隆能力的干细胞群体的假定潜力被用于治疗应用。研究技术的进步以及基于干细胞的方法诱导先天再生的理念可以为许多退行性疾病、与年龄相关的残疾和意外组织损伤带来潜在的治疗方法。