Phosphoinositide 3-kinase δ gene mutation predisposes to respiratory infection and airway damage.
Phosphoinositide 3-kinase δ gene mutation predisposes to respiratory infection and airway damage.
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DOI:
10.1126/science.1243292
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发表时间:
2013-11-15
期刊:
影响因子:
--
通讯作者:
Nejentsev S
中科院分区:
文献类型:
--
作者:
Angulo I;Vadas O;Garçon F;Banham-Hall E;Plagnol V;Leahy TR;Baxendale H;Coulter T;Curtis J;Wu C;Blake-Palmer K;Perisic O;Smyth D;Maes M;Fiddler C;Juss J;Cilliers D;Markelj G;Chandra A;Farmer G;Kielkowska A;Clark J;Kracker S;Debré M;Picard C;Pellier I;Jabado N;Morris JA;Barcenas-Morales G;Fischer A;Stephens L;Hawkins P;Barrett JC;Abinun M;Clatworthy M;Durandy A;Doffinger R;Chilvers ER;Cant AJ;Kumararatne D;Okkenhaug K;Williams RL;Condliffe A;Nejentsev S
Genetic mutations cause primary immunodeficiencies (PIDs), which predispose to infections. Here we describe Activated PI3K-δ Syndrome (APDS), a PID associated with a dominant gain-of-function mutation E1021K in the p110δ protein, the catalytic subunit of phosphoinositide 3-kinase δ (PI3Kδ), encoded by the PIK3CD gene. We found E1021K in 17 patients from seven unrelated families, but not among 3,346 healthy subjects. APDS was characterized by recurrent respiratory infections, progressive airway damage, lymphopenia, increased circulating transitional B cells, increased IgM and reduced IgG2 levels in serum and impaired vaccine responses. The E1021K mutation enhanced membrane association and kinase activity of p110δ. Patient-derived lymphocytes had increased levels of phosphatidylinositol 3,4,5-trisphosphate and phosphorylated AKT protein and were prone to activation-induced cell death. Selective p110δ inhibitors IC87114 and GS-1101 reduced the activity of the mutant enzyme in vitro, suggesting a therapeutic approach for patients with APDS.
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影响因子:
29.7
作者:
Okkenhaug K
通讯作者:
Okkenhaug K
DOI:
10.1073/pnas.0908444106
发表时间:
2009-10-06
影响因子:
11.1
作者:
Mandelker, Diana;Gabelli, Sandra B.;Amzel, L. Mario
通讯作者:
Amzel, L. Mario
影响因子:
20.3
作者:
Condliffe, AM;Davidson, K;Hawkins, PT
通讯作者:
Hawkins, PT
影响因子:
14.8
作者:
Knight, Zachary A.;Feldman, Morri E.;Shokat, Kevan M.
通讯作者:
Shokat, Kevan M.
影响因子:
4.3
作者:
Scheeff, ED;Bourne, PE
通讯作者:
Bourne, PE