Jifan Chen, Jean-Michel Escoffre, Oliver Romito, Tarik Iazourene, Antoine Presset, Marie Roy, Marie Potier Cartereau, Christophe Vandier, Yahua Wang, Guowei Wang, Pintong Huang, Ayache Bouakaz
The blood-brain barrier (BBB) maintains brain homeostasis, regulates influx and efflux transport, and provides protection to the brain tissue. Ultrasound (US) and microbubble (MB)-mediated blood-brain barrier opening is an effective and safe technique for drug delivery in-vitro and in-vivo. However, the exact mechanism underlying this technique is still not fully elucidated. The aim of the study is to explore the contribution of transcytosis in the BBB transient opening using an in-vitro model of BBB. Utilizing a diverse set of techniques, including Ca2+ imaging, electron microscopy, and electrophysiological recordings, our results showed that the combined use of US and MBs triggers membrane deformation within the endothelial cell membrane, a phenomenon primarily observed in the US + MBs group...
January 17, 2024: Ultrasonics Sonochemistry