Soluble E-selectin is found in supernatants of activaed endhotelial cells and is elevated in the serum of patients with septic shock - Newman, W; Beall, LD; Carson, CW; Hunder, GG; Graben, N; Randhawa, ZI; Gopal, TV; Wierner-Kronish, J; Matthay, MA (J Immunol, 1993)