J 2012

Soluble BAFF Levels Inversely Correlate with Peripheral B Cell Numbers and the Expression of BAFF Receptors

KREUZALER, Matthias; Melanie RAUCH; Ulrich SALZER; Jennifer BIRMELIN; Marta RIZZI et al.

Základní údaje

Originální název

Soluble BAFF Levels Inversely Correlate with Peripheral B Cell Numbers and the Expression of BAFF Receptors

Autoři

KREUZALER, Matthias; Melanie RAUCH; Ulrich SALZER; Jennifer BIRMELIN; Marta RIZZI; Bodo GRIMBACHER; Alessandro PLEBANI; Vassilios LOUGARIS; Isabella QUINTI; Vojtěch THON; Jiří LITZMAN; Michael SCHLESIER; Klaus WARNATZ; Jens THIEL; Antonius G. ROLINK a Hermann EIBEL

Vydání

The Journal of Immunology, 2012, 0022-1767

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30300 3.3 Health sciences

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 5.520

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14110/12:00059246

Organizační jednotka

Lékařská fakulta

Klíčová slova anglicky

chronic lymphocytic leukemia; Creactive protein; common variable immunodeficiency; primary antibody deficiency; systemic lupus erythematosus

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 20. 4. 2013 10:42, Ing. Mgr. Věra Pospíšilíková

Anotace

V originále

The TNF family member protein BAFF/BLyS is essential for B cell survival and plays an important role in regulating class switch recombination as well as in the selection of autoreactive B cells. In humans, increased concentrations of soluble BAFF are found in different pathological conditions, which may be as diverse as autoimmune diseases, B cell malignancies, and primary Ab deficiencies (PAD). Because the mechanisms that regulate BAFF levels are not well understood, we newly developed a set of mAbs against human BAFF to study the parameters that determine the concentrations of soluble BAFF in circulation. Patients with PAD, including severe functional B cell defects such as BTK, BAFF-R, or TACI deficiency, were found to have higher BAFF levels than asplenic individuals, patients after anti-CD20 B cell depletion, chronic lymphocytic leukemia patients, or healthy donors. In a comparable manner, mice constitutively expressing human BAFF were found to have higher concentrations of BAFF in the absence than in the presence of B cells. Therefore, our data strongly suggest that BAFF steady-state concentrations mainly depend on the number of B cells as well as on the expression of BAFF-binding receptors. Because most patients with PAD have high levels of circulating BAFF, the increase in BAFF concentrations cannot compensate defects in B cell development and function.

Návaznosti

7E08062, projekt VaV
Název: Pathophysiology and Natural Course of Primary Antibody Deficiency (PAD) Syndromes
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Pathophysiology and Natural Course of Primary Antibody Deficiency (PAD) Syndromes