1 Anne McLaren Laboratory for Regenerative Medicine, Wellcome Trust-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge , Cambridge, United Kingdom .
Stem Cells Dev. 2014 Jul 1;23(13):1437-51. doi: 10.1089/scd.2013.0576. Epub 2014 Apr 2.
Human stem cell research represents an exceptional opportunity for regenerative medicine and the surgical reconstruction of the craniomaxillofacial complex. The correct architecture and function of the vastly diverse tissues of this important anatomical region are critical for life supportive processes, the delivery of senses, social interaction, and aesthetics. Craniomaxillofacial tissue loss is commonly associated with inflammatory responses of the surrounding tissue, significant scarring, disfigurement, and psychological sequelae as an inevitable consequence. The in vitro production of fully functional cells for skin, muscle, cartilage, bone, and neurovascular tissue formation from human stem cells, may one day provide novel materials for the reconstructive surgeon operating on patients with both hard and soft tissue deficit due to cancer, congenital disease, or trauma. However, the clinical translation of human stem cell technology, including the application of human pluripotent stem cells (hPSCs) in novel regenerative therapies, faces several hurdles that must be solved to permit safe and effective use in patients. The basic biology of hPSCs remains to be fully elucidated and concerns of tumorigenicity need to be addressed, prior to the development of cell transplantation treatments. Furthermore, functional comparison of in vitro generated tissue to their in vivo counterparts will be necessary for confirmation of maturity and suitability for application in reconstructive surgery. Here, we provide an overview of human stem cells in disease modeling, drug screening, and therapeutics, while also discussing the application of regenerative medicine for craniomaxillofacial tissue deficit and surgical reconstruction.
人类干细胞研究为再生医学和颅面复合体的手术重建提供了一个特殊的机会。这个重要解剖区域的各种组织的正确结构和功能对于生命支持过程、感觉传递、社会互动和美学都至关重要。颅面组织的缺失通常与周围组织的炎症反应、显著的瘢痕形成、畸形和不可避免的心理后遗症有关。从人类干细胞体外生产用于皮肤、肌肉、软骨、骨骼和神经血管组织形成的完全功能性细胞,有朝一日可能为重建外科医生提供新的材料,用于治疗因癌症、先天性疾病或创伤而导致软硬组织缺陷的患者。然而,人类干细胞技术的临床转化,包括人类多能干细胞(hPSCs)在新型再生治疗中的应用,面临着几个必须解决的障碍,才能允许在患者中安全有效地使用。hPSCs 的基础生物学仍有待充分阐明,肿瘤发生的问题需要解决,然后才能开发细胞移植治疗。此外,还需要对体外生成的组织与体内组织进行功能比较,以确认其成熟度和在重建手术中的适用性。在这里,我们概述了人类干细胞在疾病建模、药物筛选和治疗中的应用,同时还讨论了再生医学在颅面组织缺陷和手术重建中的应用。
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