Senarath-Yapa Kshemendra, McArdle Adrian, Renda Andrea, Longaker Michael T, Quarto Natalina
Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, School of Medicine, Stanford University, Stanford, CA 94305-2200, USA.
Dipartimento di Scienze Biomediche Avanzate, Universita' degli Studi di Napoli Federico II, Napoli 80131, Italy.
Int J Mol Sci. 2014 May 26;15(6):9314-30. doi: 10.3390/ijms15069314.
Improvements in medical care, nutrition and social care are resulting in a commendable change in world population demographics with an ever increasing skew towards an aging population. As the proportion of the world's population that is considered elderly increases, so does the incidence of osteodegenerative disease and the resultant burden on healthcare. The increasing demand coupled with the limitations of contemporary approaches, have provided the impetus to develop novel tissue regeneration therapies. The use of stem cells, with their potential for self-renewal and differentiation, is one potential solution. Adipose-derived stem cells (ASCs), which are relatively easy to harvest and readily available have emerged as an ideal candidate. In this review, we explore the potential for ASCs to provide tangible therapies for craniofacial and long bone skeletal defects, outline key signaling pathways that direct these cells and describe how the developmental signaling program may provide clues on how to guide these cells in vivo. This review also provides an overview of the importance of establishing an osteogenic microniche using appropriately customized scaffolds and delineates some of the key challenges that still need to be overcome for adult stem cell skeletal regenerative therapy to become a clinical reality.
医疗保健、营养和社会护理方面的改善正在使世界人口结构发生值得称赞的变化,人口老龄化趋势日益加剧。随着世界老年人口比例的增加,骨退行性疾病的发病率以及由此产生的医疗负担也在增加。需求的不断增长以及当代方法的局限性,推动了新型组织再生疗法的发展。利用具有自我更新和分化潜力的干细胞是一种潜在的解决方案。脂肪来源干细胞(ASC)相对易于获取且 readily available,已成为理想的候选细胞。在本综述中,我们探讨了ASC为颅面和长骨骨骼缺损提供切实可行治疗方法的潜力,概述了指导这些细胞的关键信号通路,并描述了发育信号程序如何为体内引导这些细胞提供线索。本综述还概述了使用适当定制的支架建立成骨微环境的重要性,并阐述了成人干细胞骨骼再生疗法成为临床现实仍需克服的一些关键挑战。