" /> Leukocyte adhesion deficiency, type III - CISMeF





Preferred Label : Leukocyte adhesion deficiency, type III;

Symbol : LAD3;

CISMeF acronym : IADD; LAD1V; LAD3;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : Leukocyte adhesion deficiency 3; Leukocyte adhesion deficiency 1 variant; IADD; LAD1V; Integrin activation deficiency disease;

Description : Leukocyte adhesion deficiency-3 (LAD3), also known as LAD1 variant (LAD1V), is an autosomal recessive disorder characterized by LAD1 (116920)-like immune deficiency and Glanzmann thrombasthenia (GT; 273800)-like bleeding problems. LAD3 results from mutations in FERMT3, or KINDLIN3, which encodes an intracellular protein that interacts with beta-integrins in hematopoietic cells. In LAD3, the adhesive functions of integrins on both leukocytes and platelets are disrupted, most likely due to defects in activation-dependent alterations of surface integrins that enable high-avidity binding to ligands on target cells, a process termed 'inside-out signaling' (Svensson et al., 2009; Zimmerman, 2009).;

Inheritance : Autosomal recessive;

Molecular basis : Caused by mutation in the fermitin family (Drosophila) homolog 3 gene (FERMT3, 607901.0001);

Prefixed ID : #612840;

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03/05/2025


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