Xuchen Hu, Geesje M Dallinga-Thie, G Kees Hovingh, Sandy Y Chang, Norma P Sandoval, Tiffany Ly P Dang, Isamu Fukamachi, Kazuya Miyashita, Katsuyuki Nakajima, Masami Murakami, Loren G Fong, Michael Ploug, Stephen G Young, Anne P Beigneux
BACKGROUND: GPIHBP1, a glycolipid-anchored protein of capillary endothelial cells, binds lipoprotein lipase (LPL) in the interstitial spaces and transports it to the capillary lumen. GPIHBP1 deficiency prevents LPL from reaching the capillary lumen, resulting in low intravascular LPL levels, impaired intravascular triglyceride processing, and severe hypertriglyceridemia (chylomicronemia). A recent study showed that some cases of hypertriglyceridemia are caused by autoantibodies against GPIHBP1 ("GPIHBP1 autoantibody syndrome")...
July 2017: Journal of Clinical Lipidology