<sod>[[Leukocytes]], as well as other type of white blood cells, normally form weak and short-lived bonds with other cells via [[selectin]]. Coated outside the membrane of leukocytes are [[microvilli]], which have various types of adhesive molecules, including [[P-selectin glycoprotein ligand-1]] (PSGL-1), a glycoprotein that is normally decorated with sulfated sialyl-Lewis x. the sulfated-sialyl-Lewis-x-contained PSGL-1 molecule has the ability to bind to any type of selectin. Leukocytes also exhibit L-selectin that binds to other cells or other leukocytes that contain PSGL-1 molecules.<ref name="Thomas W 2008">Thomas W. Catch Bond in Adhesion. Annu. Rev. Biomed. Eng. (2008); 10:39-57</ref><eod>
<sod>[[Leukocytes]], as well as other types of white blood cells, normally form weak and short-lived bonds with other cells via [[selectin]]. Coated outside the membrane of leukocytes are [[microvilli]], which have various types of adhesive molecules, including [[P-selectin glycoprotein ligand-1]] (PSGL-1), a glycoprotein that is normally decorated with sulfated sialyl-Lewis x. the sulfated-sialyl-Lewis-x-contained PSGL-1 molecule has the ability to bind to any type of selectin. Leukocytes also exhibit L-selectin that binds to other cells or other leukocytes that contain PSGL-1 molecules.<ref name="Thomas W 2008">Thomas W. Catch Bond in Adhesion. Annu. Rev. Biomed. Eng. (2008); 10:39-57</ref><eod>