Both high intratumoral microvessel density determined using CD105 antibody and elevated plasma levels of CD105 in colorectal cancer patients correlate with poor prognosis. - Li,C.; Gardy,R.; Seon,B.K.; Duff,S.E.; Abdalla,S.; Renehan,A.; O'Dwyer,S.T.; Haboubi,N.; Kumar,S. (Br J Cancer, 2003)