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The reduction of serum B-lymphocyte activating factor levels following quinacrine add-on therapy in systemic lupus erythematosus.

Abstract：

:B-Lymphocyte-activating factor (BAFF/BLyS) is a survival factor for B cells, belonging to the tumor necrosis ligand super family. Serum BAFF levels have been found to be elevated in patients with systemic lupus erythematosus (SLE). Neutralization of BAFF activity was suggested as an additional therapeutic approach in SLE. To determine the effect of add-on Quinacrine (Qn) treatment on serum BAFF levels and the effect of this treatment on SLE disease activity index (SLEDAI), antidsDNA and anticardiolipin (aCL) antibody levels, we treated 29 stable SLE patients, who were maintained on prednisolone and hydroxychloroquine and in some on azathioprine (AZT), with additional Qn (100 mg/d) with an aim to further reduce disease activity. SLEDAI, antidsDNA, aCL antibodies and serum BAFF levels were assessed before and 3 months after the addition of Qn. Three months following Qn initiation, a reduction in SLEDAI was noticed in 19/29 patients (mean 8.8 +/- 2.3 to 3.3 +/- 1.5, P = 0.009), followed by reduction or discontinuation of prednisolone in all patients and the discontinuation of AZT in five patients. Serum BAFF levels were significantly reduced in 8/12 patients (mean 6.3 +/- 0.5 to 3.0 +/- 0.56 ng/ml P = 0.0001). This reduction was found in correlation with a decrease in aCL titres. However, the decrease in SLEDAI scores and antidsDNA antibody titres was unrelated to the decrease in serum BAFF or aCL levels. We conclude that the addition of Qn to previous therapeutic regimens in active SLE is beneficial and seems to reduce SLEDAI scores, serum BAFF and aCL levels and therefore should be considered in many of our SLE patients before aggressive treatments are given.

journal_name

Scand J Immunol

journal_title

Scandinavian journal of immunology

authors

Toubi E,Kessel A,Rosner I,Rozenbaum M,Paran D,Shoenfeld Y

doi

10.1111/j.1365-3083.2006.01737.x

subject

Has Abstract

pub_date

2006-04-01 00:00:00

pages

299-303

issue

4

eissn

0300-9475

issn

1365-3083

pii

SJI1737

journal_volume

63

pub_type

临床试验,杂志文章

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