MSN and acute lymphoblastic leukemia: The decrease of acid sialic on activated T cells 36, allows exposition of GalNAc or Galβ1,3GalNAc moieties on cell surface glycoproteins, which could be recognized by ALL. However, as observed in immunofluorescence image, some agglutinated cells were strongly stained by ALL and weakly bound with anti-moesin mAb and viceversa.