买球论坛

Expert forum

首页 买球论坛 标本专家EpCAM-independent capture of circulating tumor cells with a 'universal CTC-chip'.
注册

EpCAM-independent capture of circulating tumor cells with a 'universal CTC-chip'.

2017-12-08 07:06来源:原版作者:Chikaishi Y

Capture of circulating tumor cells (CTCs), which are shed from the primary tumor site and circulate in the blood, remains a technical challenge. CellSearch® is the only clinically approved CTC detection system, but has provided only modest sensitivity in detecting CTCs mainly because epithelial cell adhesion molecule (EpCAM)-negative tumor cells may not be captured. To achieve more sensitive CTC‑capture, we have developed a novel microfluidic platform, a 'CTC-chip' comprised of light-curable resins that has a unique advantage in that any capture antibody is easily conjugated. In the present study, we showed that EpCAM-negative tumor cells as well as EpCAM-positive cells were captured with the novel 'universal CTC-chip' as follows: i) human lung cancer cells (PC-9), with strong EpCAM expression, were efficiently captured with the CTC-chip coated with an anti-EpCAM antibody (with an average capture efficiency of 101% when tumor cells were spiked in phosphate‑buffered saline (PBS) and 88% when spiked in blood); ii) human mesothelioma cells (ACC-MESO-4), with no EpCAM expression but with podoplanin expression, were captured with the CTC-chip coated with an anti-podoplanin antibody (average capture efficiency of 78% when tumor cells were spiked in PBS and 38% when spiked in blood), whereas ACC-MESO-4 cells were not captured with the CTC-chip coated with the anti-EpCAM antibody. These results indicate that the novel 'CTC-chip' can be useful in sensitive EpCAM-independent detection of CTCs, which may provide new insights into personalized medicine.

版权声明:

本网站所有注明“来源:“买球APP”的文字、图片和音视频资料,版权均属于买球APP所有,非经授权,任何媒体、网站或个人不得转载,授权转载时须注明

“来源:买球APP”。本网所有转载文章系出于传递更多信息之目的,且明确注明来源和作者,不希望被转载的媒体或个人可与买球网联系,买球网将立即进行删除处理。

网友评论: