ArticleMedical oncology and tumor pharmacotherapy1993
Expression of an adhesion molecule and homing in B-cell chronic lymphocytic leukaemia: II. L-selectin expression mediated cell adhesion revealed by immobilized analogue carbohydrates in B-cell chronic lymphocytic leukaemia and monoclonal lymphocytosis of undetermined significance.
Article in Medical oncology and tumor pharmacotherapy, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The L-selectin mediated adhesion of freshly isolated peripheral blood mononuclear cells (PBMCs) to phosphonomonoester core polysaccharide (PPME) and fucoidin derivatized gels was investigated in seven cases of monoclonal lymphocytosis of undetermined significance (B-MLUS) and 12 cases of chronic lymphocytic leukaemia: B-CLL, patients with peripheral lymphocytosis (LY-patients), lymph node enlargement (LN-patients) and splenomegaly (SM-patients). PBMCs isolated from the peripheral blood of 10 healthy donors served as controls. The binding to PPME and fucoidin correlated well (n = 19, P = 0.01). Adhesion of PBMCs from B-MLUS and B-CLL showed a greater variability than controls. A higher number of cells, on average, bound to PPME and fucoidin derivatized polyacrylamide gels in B-MLUS than in B-CLL. However, the differences observed were not statistically significant. In four cases with B-CLL, the stimulatory effect of interferon-alpha on the function of L-selectin and some other accessory molecules was also studied. The increased binding of PBMCs to immobilized analogue molecules (PPME, fucoidin) and to high endothelial venules (HEVs) in the in vitro HEV-binding assay supports the notion that interferon-alpha not only increases the expression of the adhesion molecules, but also results in an enhanced adhesive function.
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