Leukocyte Adhesion Deficiency Type II – Market Outlook, Epidemiology, Competitive Landscape, and Market Forecast Report – 2023 To 2033

LAD II also recognized as a congenital disorder of glycosylation IIc (CDG IIc), is a rare congenital condition that disrupts the adhesion cascade's initial phase, specifically impeding selectin-mediated leukocyte tethering and rolling on the endothelium. Selectins adhere to glycoproteins or glycolipids adorned with fucosylated carbohydrate structures akin to sialyl Lewisx (sLex). LAD II leukocytes exhibit a near-complete lack of sLex expression, significantly impeding interactions with endothelial selectins and resulting in immunodeficiency. Furthermore, they do not express the H blood group antigen (Bombay phenotype) or the Lewis blood group antigens Lea and Leb, all of which are oligosaccharides containing a fucose unit, leading to the initial hypothesis that LAD II stems from a generalized defect in fucosylated structure biosynthesis. LAD II manifests with significantly elevated peripheral neutrophil counts, the cause of which remains elusive. One plausible explanation is the d...