INVESTIGADORES
RABINOVICH Gabriel Adrian
congresos y reuniones científicas
Título:
Disease Progression Markers in Uveitis: The Importance of Autoantibodies to
Autor/es:
C JUAREZ; J.C. MUIÑO; M. ROMERO; M. FERRERO; G,. RABINOVICH; J.D. LUNA
Lugar:
Lauderdale, Florida, USA
Reunión:
Congreso; ARVO 2007; 2007
Institución organizadora:
ARVO
Resumen:
Disease Progression Markers in Uveitis: The Importance of Autoantibodies to
Retinal S Antigen to Galectine-1, and Slpi Serum Levels
C. P. Juarez, J. C. Muiño, M. Romero, M. Ferrero, G. Rabinovich and J. D. Luna
Ophthalmology, Centro Privado de Ojos Romagosa-Fundación Ver, Cordoba, Argentina
Commerical Relationships: C.P. Juarez, None; J.C. Muiño, None; M. Romero, None;
M. Ferrero, None; G. Rabinovich, None; J.D. Luna, None.
Support: None.
Abstract
Purpose:To compare the presence of auto-antibodies to retinal S antigen and
Gal-1, and SLPI serum levels in patients with uveitis, and to evaluate their
potential role for disease progression.
Methods:247 patients from our uveitis clinic were prospectively evaluated, over
the past 3 years with ELISA, for the presence of IgG, IgE and IgA titers against
retinal S antigen and galectine-1, as well as serum SLPI levels. Disease
progression was analyzed in good and bad prognosis according to their clinical
evolution and response to treatment. The patients were divided in a) Autoimmune
(AIU) (n: 200) and b) Infectious uveitis (n: 47). The last group was subdivided
in: Bacterial endophtalmitis (BE) (n: 32), Tuberculosis uveitis (TB U) (n: 7)
and Toxoplasmic uveitis Tx U (n: 8). In 64 patients (49 AI, and 6 BE, 5 TBU, 4
Tx U) circulating IgG, IgA and IgE to Gal - 1, were determined; and in 45
patients (30 AI, 6 BE, 5 TB U, 4 TxU) SLPI levels were determined. Selected age
match controls were used in all cases.
Results:In AIU (n: 200), IgG to retinal S Ag in 73 cases, IgE to Retinal S Ag in
25 and 88 cases overlapped IgG and IgE anti retinal S Ag, 4 cases were negative
to both antibodies, in BE as well as TB U all cases presented IgG and IgE
negative to Retinal S Ag, the Tx U presented in 8 of 8 IgG (+) and 6 of 8 IgE to
retinal S antigen, the group ( c ) presented 1 of 30 cases IgG to retinal S Ag ;
p <0.00001. The circulating IgG to Gal - 1 was positive in 17 of 49 in AIU, IgE
to Gal - 1 in 12 cases, IgA anti Gal - 1 in 8 cases , IgG / IgE anti Gal - 1
overlapped 12 cases. In infectious conditions (BE, TB U) were negative in all
cases, the Toxoplasmic sub group presented IgG anti Gal 1 in 4 cases and IgE in
3 cases, the group (c 1 ) presented negative IgG/IgA/IgE to Gal - 1, p< 0.003 .
The presence of specific IgG and in special IgE to Gal - 1 is associated with
poor evolution in AIU, and the specific IgA anti Gal - 1 is associated with
benign outcome. The SLPI level was in Active Autoimmune Uveitis: 457, 3 ± 50, 5
pg/ml, en Inactive Autoimmune Uveitis was: 317 ± 21, 3 pg/ml, BE was 280 ± 82.8
pg/ml, TB U: 265 ± 24 pg/ml, Tx U was: 371, 2 ± 28, 4 pg /ml and control group
303± 25 pg/ml, p< 0.0001.
Conclusions:The presence of IgE and IgG to retinal S antigen are associated with
autoimmune uveitis and Tx U, these features suggest Th 2 activation. The IgE and
IgG anti Gal - 1 are associated with poor evolution and IgA anti Gal - 1 with
benign outcome. The increase of serum SLPI levels are linked with active
autoimmune uveitis. as well as with Tx U, probably representing an innate and
adaptative immunologic responses.
Key Words: uveitis-clinical/animal model immunomodulation/immunoregulation
inflammation
© 2007, The Association for Research in Vision and Ophthalmology, Inc., all
rights reserved. Permission to republish any abstract or part of an abstract in
any form must be obtained in writing from the ARVO Office prior to publication.