Segmenting Growth of Endothelial Cells in 6-Well Plates on an Orbital Shaker for Mechanobiological Studies
| Autor: | Mean Ghim, Kuin Tian Pang, Mehwish Arshad, Peter D. Weinberg, Xiaomeng Wang |
|---|---|
| Přispěvatelé: | Lee Kong Chian School of Medicine (LKCMedicine), Institute of Molecular and Cell Biology, A*STAR, Singapore Eye Research Institute |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Endothelium FLOW 1702 Cognitive Sciences General Chemical Engineering Flow (psychology) Cell Culture Techniques engineering.material In Vitro Techniques CULTURED ENDOTHELIUM 0601 Biochemistry and Cell Biology General Biochemistry Genetics and Molecular Biology Mechanobiology Coating Shear stress medicine Humans Medicine [Science] Shaker Cells Cultured Science & Technology SHEAR-STRESS General Immunology and Microbiology Cell Culture General Neuroscience Endothelial Cells Atherosclerosis Multidisciplinary Sciences Endothelial stem cell Shear (sheet metal) medicine.anatomical_structure 1701 Psychology Biophysics engineering Science & Technology - Other Topics Endothelium Vascular Stress Mechanical |
| Zdroj: | Journal of visualized experiments : JoVE. (172) |
| ISSN: | 1940-087X |
| Popis: | Shear stress imposed on the arterial wall by the flow of blood affects endothelial cell morphology and function. Low magnitude, oscillatory and multidirectional shear stresses have all been postulated to stimulate a pro-atherosclerotic phenotype in endothelial cells, whereas high magnitude and unidirectional or uniaxial shear are thought to promote endothelial homeostasis. These hypotheses require further investigation, but traditional in vitro techniques have limitations, and are particularly poor at imposing multidirectional shear stresses on cells. One method that is gaining increasing use is to culture endothelial cells in standard multi-well plates on the platform of an orbital shaker; in this simple, low-cost, high-throughput and chronic method, the swirling medium produces different patterns and magnitudes of shear, including multidirectional shear, in different parts of the well. However, it has a significant limitation: cells in one region, exposed to one type of flow, may release mediators into the medium that affect cells in other parts of the well, exposed to different flows, hence distorting the apparent relation between flow and phenotype. Here we present an easy and affordable modification of the method that allows cells to be exposed only to specific shear stress characteristics. Cell seeding is restricted to a defined region of the well by coating the region of interest with fibronectin, followed by passivation using passivating solution. Subsequently, the plates can be swirled on the shaker, resulting in exposure of cells to well-defined shear profiles such as low magnitude multidirectional shear or high magnitude uniaxial shear, depending on their location. As before, the use of standard cell-culture plasticware allows straightforward further analysis of the cells. The modification has already allowed the demonstration of soluble mediators, released from endothelium under defined shear stress characteristics, that affect cells located elsewhere in the well. National Medical Research Council (NMRC) Published version The authors gratefully acknowledge a British Heart Foundation project grant (to PDW), a National Medical Research Council Singapore TAAP and DYNAMO Grant (to XW, NMRC/OFLCG/004/2018, NMRC/OFLCG/001/2017), an A*STAR Graduate Scholarship (to KTP), and a British Heart Foundation Center of Research Excellence studentship (to MA). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|