1996
Activation via the antigen receptor is impaired in T cells, but not in B cells from patients with common variable immunodeficiency
FISCHER, MB.; HM. WOLF; I. HAUBER; H. EGGENBAUER; Vojtěch THON et al.Základní údaje
Originální název
Activation via the antigen receptor is impaired in T cells, but not in B cells from patients with common variable immunodeficiency
Název česky
Aktivace cestou antigenního receptoru je porušena u T buněk, avšak ne u B buněk pacientů s běžnou variabilní imunodeficiencí
Autoři
FISCHER, MB.; HM. WOLF; I. HAUBER; H. EGGENBAUER; Vojtěch THON; M. SASGARY a MM. EIBL
Vydání
EUROPEAN JOURNAL OF IMMUNOLOGY, 1996, 0014-2980
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30102 Immunology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14110/96:00035801
Organizační jednotka
Lékařská fakulta
UT WoS
Klíčová slova česky
TCR; CVID
Klíčová slova anglicky
T cell activation; common variable immunodeficiency; T cell receptor; inositol phosphates
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 26. 6. 2009 00:18, prof. MUDr. Vojtěch Thon, Ph.D.
V originále
The patients included in this study belong to a subset of common variable immunodeficiency (CVID) patients whose peripheral blood T cells have a T cell receptor (TCR)-mediated activation defect leading to impaired expression of the interleukin (IL)-2 gene upon stimulation with recall antigens (tetanus toxoid, Escherichia coli) or superantigens (staphy lococcal enterotoxins). In the present report we demonstrate that the patients' peripheral blood T cells failed to generate the second messenger inositol 1,4,5-trisphosphate (Ins(1,4,5)P-3) following stimulation with superantigen or mAb specific for the monomorphic region of the TCR beta-chain. Patients' T cell lines were also impaired in generating Ins(1,4,5)P, when stimulated with tetanus toxoid-pulsed autologous monocytes. Addition of a second or third co-stimulatory signal provided by recombinant IL-2, CD28 or both had no effect on the Ins(1,4)P-3 formation of the patients' antigen-driven T cell lines. The T cell activation defect, however, was not absolute, as Ins(1,4,5)P-3 formation in the patients T cells after phytohemagglutinin or aluminium fluoride stimulation was normal. The impairment in signal transduction via the T cell antigen receptor was limited to the patients' T cells, as no activation defect after ligation of surface immunoglobulin. the antigen receptor on B cells, could be detected.
Česky
Aktivace cestou antigenního receptoru je porušena u T buněk, avšak ne u B buněk pacientů s běžnou variabilní imunodeficiencí.