方法对比
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| 绒膜尿囊膜试验× | Transwell 实验× | |
|---|---|---|
| 领域 | 生物材料 | 生物材料 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1974 | 1962 |
| 提出者≠ | Judah Folkman | Stephen Boyden |
| 类型≠ | Developmental biology assay | Migration/invasion assay |
| 开创性文献≠ | Folkman, J. (1974). Tumor angiogenesis: therapeutic implications. New England Journal of Medicine, 285(21), 1182-1186. link ↗ | Boyden, S. (1962). The chemotactic effect of mixtures of antibody and antigen on polymorphonuclear leucocytes. Journal of Experimental Medicine, 115(3), 453-466. DOI ↗ |
| 别名 | chick embryo chorioallantoic membrane, angiogenesis assay, CAM angiogenesis model | Boyden chamber assay, chemotaxis assay, invasion chamber assay |
| 相关 | 4 | 4 |
| 摘要≠ | The chorioallantoic membrane (CAM) assay is a well-established in vivo model for studying angiogenesis (new blood vessel formation) and evaluating the pro- or anti-angiogenic properties of biomaterials, drugs, and bioactive molecules. Developed by Judah Folkman in the 1970s, the assay uses the highly vascularized CAM of developing chick embryos as a platform for implanting test materials and observing vascular response. The CAM provides a transparent, immunologically naive microenvironment with rapid and reproducible neovascularization, making it ideal for screening angiogenic potential and assessing biomaterial biocompatibility. | The Transwell assay (also called the Boyden chamber assay after its originator Stephen Boyden) is a quantitative method for measuring cell migration and invasion in response to chemical gradients or through matrix barriers. The assay uses a membrane insert with defined pore size suspended in a multi-well plate: cells are placed in the upper chamber, a chemoattractant is placed in the lower chamber, and cells that successfully migrate through the pores accumulate in the lower chamber, where they can be counted or visualized. Variants that coat the insert with matrix proteins (Matrigel, collagen) enable measurement of invasion capacity. The Transwell assay is a gold-standard method in cell biology for evaluating cell motility, tumor metastatic potential, and the effects of growth factors and inhibitory compounds. |
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