Transcytosis – what is it, and does it matter?

In my book the Clot Thickens, and in other blogs and lectures, I have stated that LDL cannot get through the endothelium (lining of blood vessel walls) and into the artery wall behind. So, the idea of LDL leaking from the bloodstream and into the artery wall is nonsense. Recently, however, people have been bombarding [ ]