The most common cause of death in the developed world is cardiovascular disease. For decades, this has provided a powerful motivation to study the effects of mechanical forces on vascular cells in a controlled setting, since these cells have been implicated in the development of disease. Early efforts in the 1970 s included the first use of a parallel-plate flow system to apply shear stress to endothelial cells (ECs) and the development of uniaxial substrate stretching techniques (Krueger et al., 1971, “An in Vitro Study of Flow Response by Cells,” J. Biomech., 4(1), pp. 31–36 and Meikle et al., 1979, “Rabbit Cranial Sutures in Vitro: A New Experimental Model for Studying the Response of Fibrous Joints to Mechanical Stress,” Calcif. Tissue Int., 28(2), pp. 13–144). Since then, a multitude of in vitro devices have been designed and developed for mechanical stimulation of vascular cells and tissues in an effort to better understand their response to in vivo physiologic mechanical conditions. This article reviews the functional attributes of mechanical bioreactors developed in the 21st century, including their major advantages and disadvantages. Each of these systems has been categorized in terms of their primary loading modality: fluid shear stress (FSS), substrate distention, combined distention and fluid shear, or other applied forces. The goal of this article is to provide researchers with a survey of useful methodologies that can be adapted to studies in this area, and to clarify future possibilities for improved research methods.
Device-Based In Vitro Techniques for Mechanical Stimulation of Vascular Cells: A Review
Manuscript received October 28, 2013; final manuscript received July 25, 2014; published online February 5, 2015. Assoc. Editor: Carlijn V. C. Bouten.
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Davis, C. A., Zambrano, S., Anumolu, P., Allen, A. C. B., Sonoqui, L., and Moreno, M. R. (April 1, 2015). "Device-Based In Vitro Techniques for Mechanical Stimulation of Vascular Cells: A Review." ASME. J Biomech Eng. April 2015; 137(4): 040801. https://doi.org/10.1115/1.4029016
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