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Cell. 1989 Mar 24;56(6):907-10.

Adhesion molecules controlling lymphocyte migration.

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Department of Pathology University of Michigan, Ann Arbor 48109-0602.


Two newly characterized structural families of adhesion molecules, in concert with known members of the integrin and immunoglobulin supergene families, mediate the interaction of circulating lymphoid cells with the vessel wall. The Hermes/CD44 antigen family participates in attachment to multiple vascular beds and consists of a common polypeptide core showing amino-terminal homology to cartilage link proteins. In contrast, the node-specific homing receptor Mel-14 consists of substructures homologous to calcium-dependent lectins, EGF, and complement binding proteins. The sequence of Mel-14 provides structural support for the hypothesis that lectin-carbohydrate interactions mediate physiologically significant adhesion events in the course of lymphocyte recirculation. The discovery of a similar structure in ELAM-1 and GMP-140 extends the reach of this family to other leukocyte and platelet interactions with the vessel wall.

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