Successful treatment of autoimmune manifestations in MRL/l and MRL/n mice using total lymphoid irradiation (TLI).

Abstract:

:The autoimmune manifestations of MRL-+/+ (MRL/n) and MRL/Mp-lpr/lpr (MRL/l) murine models of systemic lupus erythematosus (SLE) were successfully reversed following total lymphoid irradiation (TLI) therapy consisting of 8-12 daily fractions of 200 rad. Following radiotherapy the characteristic lymphadenopathy of MRL/l disappeared, proteinuria was 334 mg% compared to a peak of 2272 mg% in untreated controls, and the median survival time was prolonged to 423 days compared to 214 days in untreated mice. The albuminuria of TLI-treated MRL/n mice was 194 mg% compared to 1180 mg% in untreated controls. The survival of treated MRL/n mice was prolonged to a median of 389 as compared to 190 days in untreated controls. The effect of TLI on antiDNA antibodies in both MRL/l and MRL/n was less remarkable. However, the antiDNA activity reached normal levels in most long-living mice. The most impressive finding was complete reversal and/or prevention of the SLE-like glomerulonephritis in MRL/l mice as documented by light and electron microscopy. Immunomanipulation with TLI should be further evaluated as a possible treatment modality in intractable human autoimmune disorders.

journal_name

Exp Mol Pathol

authors

Moscovitch M,Rosenmann E,Neeman Z,Slavin S

doi

10.1016/0014-4800(83)90096-5

subject

Has Abstract

pub_date

1983-02-01 00:00:00

pages

33-47

issue

1

eissn

0014-4800

issn

1096-0945

pii

0014-4800(83)90096-5

journal_volume

38

pub_type

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