| H00099 | |
| H番号 | H00099 |
| 名称 | 白血球粘着不全症 |
| 概要 | Leukocyte adhesion deficiency (LAD) is a rare, autosomal recessive genetic disorder in which neutrophils fail to mobilize and migrate to sites of injury. At least three genetically distinct forms of this group of disorders have been described: LAD I, II, and III. Defects in the expression of beta2-integrins and fucose- containing proteins account for LAD-I and LAD-II, respectively. In LAD-III integrin expression by leukocytes is normal, but the integrins fail to generate high avidity for their cognate endothelial-cell ligands. Mutations in the KINDLIN3 (official symbol FERMT3), a gene that encodes an intracellular protein that interacts with cytoplasmic tails of beta-integrins in hematopoietic cells, is the cause of LAD-III. Dominant-negative mutations resulting in deficiency of ras-related C3 botulinum toxin substrate (Rac2), the predominant hematopoeitic-specific Rho GTPase in neutrophils also leads to leukocyte adhesion deficiency. |
| カテゴリ | 原発性免疫不全症 |
| ネットワーク | - |
| 病因遺伝子 | ITGB2 [HSA:3689] [KO:K06464] SLC35C1 [HSA:55343] [KO:K15279] FERMT3 [HSA:83706] [KO:K17084] RAC2 [HSA:5880] [KO:K07860] |
| 病原体 | - |
| 環境要因 | - |
| 発癌物質 | - |
| 治療薬 | - |
| コメント | - |
| リンク | MeSH: C535887 C535755 C567555 OMIM: 116920 266265 612840 608203 |
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