- P-selectin glycoprotein ligand-1 (PSGL-1) on T helper 1 but not on T helper 2 cells binds to P-selectin and supports migration into inflamed skin. Borges, E., Tietz, W., Steegmaier, M., Moll, T., Hallmann, R., Hamann, A., Vestweber, D. J. Exp. Med. (1997)