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2. Chromosome 17p12-q11 harbors susceptibility loci for systemic lupus erythematosus

Author

Johansson, C. M., Zunec, R., Garía, M. A., Scherbarth, H. R., Tate, G. A., Paira, S., Navarro, S. M., Perandones, C. E., Gamron, S., Alvarellos, A., Graf, C. E., Manni, J., Berbotto, G. A., Palatnik, S. A., Luis Jose Catoggio, Battagliotti, C. G., Sebastiani, G. D., Migliaresi, S., Galeazzi, M., Pons-Estel, B. A., Alarcón-Riquelme, M. E., Gunnarsson, I., Svennungson, E., Gordon, C., Jonsson, R., Moutsopoulos, H., Doria, A., Marcos, J. C., Marcos, A. I., Marino, P. C., Motta, E. L., Allevi, A., Presas, J. L., Roverano, A., Louteiro, C., Ramos, F. A., Prigione, C. S., Eimon, A., Drenkard, C., Menso, E., Caeiro, F., Bertoli, A., Caprarulo, C., Buchanan, G., Bertero, E., Grimaudo, S., Guillersn, C., Jorfen, M., Romero, E. J., Abdala, M., Bearzotti, M., Soriano, E. R., Santos, C. D., and Battagliotti, C. A.

Subjects
Adult, Male, Candidate gene, Genotype, Argentina, Locus (genetics), Biology, Genome, Systemic lupus erythematosus (SLE), microsatellites, genome scan, Genetics, medicine, Humans, Lupus Erythematosus, Systemic, Genetic Predisposition to Disease, Promoter Regions, Genetic, Gene, Genetics (clinical), Aged, Autoimmune disease, Chromosome Mapping, Middle Aged, medicine.disease, Human genetics, Pedigree, Chromosome 17 (human), Europe, Italy, Microsatellite, Female, Chromosomes, Human, Pair 17, Microsatellite Repeats
Abstract

Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by the presence of autoantibodies against intracellular components, the formation of immune complexes, and inflammation in various organs, typically the skin and kidney glomeruli. The etiology of the disease is not well understood but is most likely the result of the interaction between genetic and environmental factors. In order to identify susceptibility loci for SLE, we have performed genome scans with microsatellite markers covering the whole genome in families from Argentina, Italy, and Europe. The results reveal a heterogeneous disease with different susceptibility loci in different family sets. We have found significant linkage to chromosome 17p12-q11 in the Argentine set of families. The maximum LOD score was given by marker D17S1294 in combination with D17S1293, when assuming a dominant inheritance model (Z = 3.88). We also analyzed a repeat in the promoter region of the NOS2A gene, a strong candidate gene in the region, but no association was found. The locus on chromosome 17 has previously been identified in genetic studies of multiple sclerosis families. Several other interesting regions were found at 1p35, 1q31, 3q26, 5p15, 11q23 and 19q13, confirming previously identified loci for SLE or other autoimmune diseases.

Published
2004

3. Chromosome 17p12-q11 harbors susceptibility loci for systemic lupus erythematosus

Author

Johansson, C.M. Zunec, R. Garía, M.A. Scherbarth, H.R. Tate, G.A. Paira, S. Navarro, S.M. Perandones, C.E. Gamron, S. Alvarellos, A. Graf, C.E. Manni, J. Berbotto, G.A. Palatnik, S.A. Catoggio, L.J. Battagliotti, C.G. Sebastiani, G.D. Migliaresi, S. Galeazzi, M. Pons-Estel, B.A. Alarcón-Riquelme, M.E. Gunnarsson, I. Svennungson, E. Gordon, C. Jonsson, R. Moutsopoulos, H. Doria, A. Marcos, J.C. Marcos, A.I. Marino, P.C. Motta, E.L. Allevi, A. Presas, J.L. Roverano, A. Louteiro, C. Ramos, F.A. Prigione, C.S. Eimon, A. Drenkard, C. Menso, E. Caeiro, F. Bertoli, A. Caprarulo, C. Buchanan, G. Bertero, E. Grimaudo, S. Guillersn, C. Jorfen, M. Romero, E.J. Abdala, M. Bearzotti, M. Soriano, E.R. Santos, C.D. Battagliotti, C.A.

Abstract

Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by the presence of autoantibodies against intracellular components, the formation of immune complexes, and inflammation in various organs, typically the skin and kidney glomeruli. The etiology of the disease is not well understood but is most likely the result of the interaction between genetic and environmental factors. In order to identify susceptibility loci for SLE, we have performed genome scans with microsatellite markers covering the whole genome in families from Argentina, Italy, and Europe. The results reveal a heterogeneous disease with different susceptibility loci in different family sets. We have found significant linkage to chromosome 17p12-q11 in the Argentine set of families. The maximum LOD score was given by marker D17S1294 in combination with D17S1293, when assuming a dominant inheritance model (Z=3.88). We also analyzed a repeat in the promoter region of the NOS2A gene, a strong candidate gene in the region, but no association was found. The-locus on chromosome 17 has © Springer-Verlag 2004.

Published
2004

4. Preferential Binding to Elk-1 by SLE-Associated IL10 Risk Allele Upregulates IL10 Expression

Author

Sakurai, D., Zhao, J., Deng, Y., Kelly, J. A., Brown, E. E., Harley, J. B., Bae, S. C., Alarcón-Riquelme, M. E., Edberg, J. C., Kimberly, R. P., Ramsey-Goldman, R., Caeiro, F., Soriano, E. R., Bertoli, A., Prigione, C., Ramos, F. A., Romero, E. J., Tsao, B. P., Chen, W., Truedsson, L., Yu, C. Y., Migliarese, S., García, M. A., Marcos, J. C., Eimon, A., Sánchez-Román, J., Battagliotti, C. G., Kaufman, K. M., Vyse, T. J., Jacob, C. O., Gaffney, P. M., Sebastiani, G. D., Ramón, Enrique de, Hahn, B. H., Song, Y. W., Grossman, J. M., Sivils, K. M., James, J. A., Kamen, D. L., Gilkeson, G. S., Niewold, T. B., D'Alfonso, Sandra, Merrill, J. T., Martín, J., Scofield, R. H., Chang, D. M., Criswell, L. A., Langefeld, C. D., Stevens, A. M., Cantor, R. M., Frostegård, Johan, Boackle, S. A., Kim, J. H., Choi, J., Pons-Estel, B. A., Freedman, Barry I., Sabio, José Mario, Anaya, J. M., Ortego-Centeno, N., Callejas-Rubio, J. L., González-Escribano, María Francisca, Buchanan, G., Graf, C. E., Paira, S., Galeazzi, M., Witte, Torsten, Lauwerys, B. R., Endreffy, E., Kovács, L., Vasconcelos, C., Silva, B. M. da, Scherbarth, H. R., Catoggio, L. J., Manni, J., Caprarulo, C., Guillerón, C., Marino, P. C., Motta, E. L., Gamron, S., Drenkard, C., Menso, E., Allievi, A., Roverano, S., Tate, G. A., Bertero, E., Presas, J. L., Navarro, S. M., Parque, S., Grimaudo, S., Palatnik, S. A., Abdala, M., Acevedo, E., Bearzotti, M., Santos, C. D., Alvarellos, A., Berbotto, G. A., Jorfen, M., Marcos, A. I., Perandones, C. E., Cucho, M., Torre, I. G. de la, Ríos, M. C., Moctezuma, J. F., Ceceña, M. M., Petri, M. A., Vilá, Luis M., Reveille, J. D., Alarcón, G. S., Sakurai, D., Zhao, J., Deng, Y., Kelly, J. A., Brown, E. E., Harley, J. B., Bae, S. C., Alarcón-Riquelme, M. E., Edberg, J. C., Kimberly, R. P., Ramsey-Goldman, R., Caeiro, F., Soriano, E. R., Bertoli, A., Prigione, C., Ramos, F. A., Romero, E. J., Tsao, B. P., Chen, W., Truedsson, L., Yu, C. Y., Migliarese, S., García, M. A., Marcos, J. C., Eimon, A., Sánchez-Román, J., Battagliotti, C. G., Kaufman, K. M., Vyse, T. J., Jacob, C. O., Gaffney, P. M., Sebastiani, G. D., Ramón, Enrique de, Hahn, B. H., Song, Y. W., Grossman, J. M., Sivils, K. M., James, J. A., Kamen, D. L., Gilkeson, G. S., Niewold, T. B., D'Alfonso, Sandra, Merrill, J. T., Martín, J., Scofield, R. H., Chang, D. M., Criswell, L. A., Langefeld, C. D., Stevens, A. M., Cantor, R. M., Frostegård, Johan, Boackle, S. A., Kim, J. H., Choi, J., Pons-Estel, B. A., Freedman, Barry I., Sabio, José Mario, Anaya, J. M., Ortego-Centeno, N., Callejas-Rubio, J. L., González-Escribano, María Francisca, Buchanan, G., Graf, C. E., Paira, S., Galeazzi, M., Witte, Torsten, Lauwerys, B. R., Endreffy, E., Kovács, L., Vasconcelos, C., Silva, B. M. da, Scherbarth, H. R., Catoggio, L. J., Manni, J., Caprarulo, C., Guillerón, C., Marino, P. C., Motta, E. L., Gamron, S., Drenkard, C., Menso, E., Allievi, A., Roverano, S., Tate, G. A., Bertero, E., Presas, J. L., Navarro, S. M., Parque, S., Grimaudo, S., Palatnik, S. A., Abdala, M., Acevedo, E., Bearzotti, M., Santos, C. D., Alvarellos, A., Berbotto, G. A., Jorfen, M., Marcos, A. I., Perandones, C. E., Cucho, M., Torre, I. G. de la, Ríos, M. C., Moctezuma, J. F., Ceceña, M. M., Petri, M. A., Vilá, Luis M., Reveille, J. D., and Alarcón, G. S.

Abstract

Immunoregulatory cytokine interleukin-10 (IL-10) is elevated in sera from patients with systemic lupus erythematosus (SLE) correlating with disease activity. The established association of IL10 with SLE and other autoimmune diseases led us to fine map causal variant(s) and to explore underlying mechanisms. We assessed 19 tag SNPs, covering the IL10 gene cluster including IL19, IL20 and IL24, for association with SLE in 15,533 case and control subjects from four ancestries. The previously reported IL10 variant, rs3024505 located at 1 kb downstream of IL10, exhibited the strongest association signal and was confirmed for association with SLE in European American (EA) (P = 2.7×10-8, OR = 1.30), but not in non-EA ancestries. SNP imputation conducted in EA dataset identified three additional SLE-associated SNPs tagged by rs3024505 (rs3122605, rs3024493 and rs3024495 located at 9.2 kb upstream, intron 3 and 4 of IL10, respectively), and SLE-risk alleles of these SNPs were dose-dependently associated with elevated levels of IL10 mRNA in PBMCs and circulating IL-10 protein in SLE patients and controls. Using nuclear extracts of peripheral blood cells from SLE patients for electrophoretic mobility shift assays, we identified specific binding of transcription factor Elk-1 to oligodeoxynucleotides containing the risk (G) allele of rs3122605, suggesting rs3122605 as the most likely causal variant regulating IL10 expression. Elk-1 is known to be activated by phosphorylation and nuclear localization to induce transcription. Of interest, phosphorylated Elk-1 (p-Elk-1) detected only in nuclear extracts of SLE PBMCs appeared to increase with disease activity. Co-expression levels of p-Elk-1 and IL-10 were elevated in SLE T, B cells and monocytes, associated with increased disease activity in SLE B cells, and were best downregulated by ERK inhibitor. Taken together, our data suggest that preferential binding of activated Elk-1 to the IL10 rs3122605-G allele upregulates IL10 expressio

Published
2013

5. Kallikrein genes are associated with lupus and glomerular basement membrane-specific antibody-induced nephritis in mice and humans

Author

Liu, Kui, Li, Quan-Zhen, Delgado-Vega, Angelica M., Abelson, Anna-Karin, Sánchez, Elena, Kelly, Jennifer A., Li, Li, Liu, Yang, Zhou, Jinchun, Yan, Mei, Ye, Qiu, Liu, Shenxi, Xie, Chun, Zhou, Xin J., Chung, Sharon A., Pons-Estel, Bernardo, Witte, Torsten, de Ramón, Enrique, Bae, Sang-Cheol, Barizzone, Nadia, Sebastiani, Gian Domenico, Merrill, Joan T., Gregersen, Peter K., Gilkeson, Gary G., Kimberly, Robert P., Vyse, Timothy J., Kim, Il, D'Alfonso, Sandra, Martin, Javier, Harley, John B., Criswell, Lindsey A., Wakeland, Edward K., Alarcón-Riquelme, Marta E., Mohan, Chandra, Danieli, M.G., Galeazzi, M., Querini, P.R., Migliaresi, S., Scherbarth, H.R., Lopez, J.A., Motta, E.L., Gamron, S., Drenkard, C., Menso, E., Allievi, A., Tate, G.A., Presas, J.L., Palatnik, S.A., Abdala, M., Bearzotti, M., Alvarellos, A., Caeiro, F., Bertoli, A., Paira, S., Roverano, S., Graf, C.E., Bertero, E., Caprarulo, C., Buchanan, G., Guillerón, C., Grimaudo, S., Manni, J., Catoggio, L.J., Soriano, E.R., Santos, C.D., Prigione, C., Ramos, F.A., Navarro, S.M., Berbotto, G.A., Jorfen, M., Romero, E.J., Garcia, M.A., Marcos, J.C., Marcos, A.I., Perandones, C.E., Eimon, A., Battagliotti, C.G., Armadi-Simab, K., Gross, W.L., Gromica-Ihle, E., Peter, H.H., Manger, K., Schnarr, S., Zeidler, H., Schmidt, R.E., Ortego, N., Callejas, J.L., Jiménez-Alonso, J., Sabio, M., Sánchez-Román, J., Garcia-Hernandez, F.J., Camps, M., López-Nevot, M.A., González-Escribano, M.F., Harley, J.H., Riquelme, M.A., Kimberly, R., Criswell, L., Langefeld, C., Tsao, B., Jacob, C., Liu, Kui, Li, Quan-Zhen, Delgado-Vega, Angelica M., Abelson, Anna-Karin, Sánchez, Elena, Kelly, Jennifer A., Li, Li, Liu, Yang, Zhou, Jinchun, Yan, Mei, Ye, Qiu, Liu, Shenxi, Xie, Chun, Zhou, Xin J., Chung, Sharon A., Pons-Estel, Bernardo, Witte, Torsten, de Ramón, Enrique, Bae, Sang-Cheol, Barizzone, Nadia, Sebastiani, Gian Domenico, Merrill, Joan T., Gregersen, Peter K., Gilkeson, Gary G., Kimberly, Robert P., Vyse, Timothy J., Kim, Il, D'Alfonso, Sandra, Martin, Javier, Harley, John B., Criswell, Lindsey A., Wakeland, Edward K., Alarcón-Riquelme, Marta E., Mohan, Chandra, Danieli, M.G., Galeazzi, M., Querini, P.R., Migliaresi, S., Scherbarth, H.R., Lopez, J.A., Motta, E.L., Gamron, S., Drenkard, C., Menso, E., Allievi, A., Tate, G.A., Presas, J.L., Palatnik, S.A., Abdala, M., Bearzotti, M., Alvarellos, A., Caeiro, F., Bertoli, A., Paira, S., Roverano, S., Graf, C.E., Bertero, E., Caprarulo, C., Buchanan, G., Guillerón, C., Grimaudo, S., Manni, J., Catoggio, L.J., Soriano, E.R., Santos, C.D., Prigione, C., Ramos, F.A., Navarro, S.M., Berbotto, G.A., Jorfen, M., Romero, E.J., Garcia, M.A., Marcos, J.C., Marcos, A.I., Perandones, C.E., Eimon, A., Battagliotti, C.G., Armadi-Simab, K., Gross, W.L., Gromica-Ihle, E., Peter, H.H., Manger, K., Schnarr, S., Zeidler, H., Schmidt, R.E., Ortego, N., Callejas, J.L., Jiménez-Alonso, J., Sabio, M., Sánchez-Román, J., Garcia-Hernandez, F.J., Camps, M., López-Nevot, M.A., González-Escribano, M.F., Harley, J.H., Riquelme, M.A., Kimberly, R., Criswell, L., Langefeld, C., Tsao, B., and Jacob, C.

Abstract

Immune-mediated nephritis contributes to disease in systemic lupus erythematosus, Goodpasture syndrome (caused by antibodies specific for glomerular basement membrane [anti-GBM antibodies]), and spontaneous lupus nephritis. Inbred mouse strains differ in susceptibility to anti-GBM antibody-induced and spontaneous lupus nephritis. This study sought to clarify the genetic and molecular factors that maybe responsible for enhanced immune-mediated renal disease in these models. When the kidneys of 3 mouse strains sensitive to anti-GBM antibody-induced nephritis were compared with those of 2 control strains using microarray analysis, one-fifth of the underexpressed genes belonged to the kallikrein gene family,which encodes serine esterases. Mouse strains that upregulated renal and urinary kallikreins exhibited less evidence of disease. Antagonizing the kallikrein pathway augmented disease, while agonists dampened the severity of anti-GBM antibody-induced nephritis. In addition, nephritis-sensitive mouse strains had kallikrein haplotypes that were distinct from those of control strains, including several regulatory polymorphisms,some of which were associated with functional consequences. Indeed, increased susceptibility to anti-GBM antibody-induced nephritis and spontaneous lupus nephritis was achieved by breeding mice with a genetic interval harboring the kallikrein genes onto a disease-resistant background. Finally, both human SLE and spontaneous lupus nephritis were found to be associated with kallikrein genes, particularly KLK1 and the KLK3 promoter, when DNA SNPs from independent cohorts of SLE patients and controls were compared. Collectively, these studies suggest that kallikreins are protective disease-associated genes in anti-GBM antibody-induced nephritis and lupus.

Published
2009
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7. Genetic associations of leptin-related polymorphisms with systemic lupus erythematosus

Author

Marta E. Alarcón-Riquelme, Ignacio García-De La Torre, Luis J. Catoggio, Timothy B. Niewold, Ana I. Marcos, Barry I. Freedman, Pilar C. Marino, Marisa Jorfen, Griselda Buchanan, Marcelo Abdala, Anne M. Stevens, Fernando A. Ramos, Emoke Endreffy, Sandra M. Navarro, Ana M. Bertoli, Sergio Migliarese, Jorge Manni, Jose L. Presas, César Graf, László Kovács, Hye jin Jeong, John B. Harley, Berta Martins da Silva, Cesar Caprarulo, Guillermo Tate, Jennifer M. Grossman, Julio Sánchez-Román, Jian Zhao, Javier Martin, Cristina G. Battagliotti, Estela Bertero, Chaim O. Jacob, Carlos E. Perandones, Kenneth M. Kaufman, Guillermo A. Berbotto, Alberto Allievi, John D. Reveille, Sebastian Grimaudo, Estela L. Motta, Susana Gamron, Yeong Wook Song, Mario Cardiel Ríos, José Luis Callejas, Gary S. Gilkeson, Mercedes A. García, Hugo R. Scherbarth, Kathy Moser Sivils, María Francisca González-Escribano, Alejandro Alvarellos, Antonio La Cava, Mariano Cucho, Joan T. Merrill, Carlos D. Santos, Torsten Witte, Cristina Drenkard, R. Hal Scofield, Seung Taek Song, Cristina Prigione, Lindsey A. Criswell, Mariela Bearzotti, Deh Ming Chang, José Mario Sabio, Francisco Caeiro, Mauro Galeazzi, Rosalind Ramsey-Goldman, Simon A. Palatnik, Lennart Truedsson, Marco Maradiaga Ceceña, Johan Frostegård, Susan A. Boackle, Sanatorio Parque, Francisco Moctezuma, Hui Wu, Juan Carlos Marcos, Eduardo Acevedo, Timothy J. Vyse, Jennifer A. Kelly, Michelle Petri, Carlos Vasconcelos, Sandra D'Alfonso, Elizabeth E. Brown, Norberto Ortego-Centeno, Betty P. Tsao, Enrique de Ramón, Juan-Manuel Anaya, Diane L. Kamen, Emilia Menso, Gian Domenico Sebastiani, Patrick M. Gaffney, Judith A. James, Sang Cheol Bae, Susana Roverano, Carolina Guillerón, Jeffrey C. Edberg, Enrique R. Soriano, Carl D. Langefeld, Elisa J. Romero, Alicia Eimon, Bevra H. Hahn, Robert P. Kimberly, Luis M. Vilá, Graciela S. Alarcón, Sergio Paira, Bernard Lauwerys, Zhao, J., Wu, H., Langefeld, C. D., Kaufman, K. M., Kelly, J. A., Bae, S. -C., Alarcon-Riquelme, M. E., Alarcon, G. S., Anaya, J. -M., Criswell, L. A., Freedman, B. I., Kamen, D. L., Gilkeson, G. S., Jacob, C. O., James, J. A., Merrill, J. T., Gaffney, P. M., Sivils, K. M., Niewold, T. B., Petri, M. A., Song, S. T., Jeong, H. -J., Ramsey-Goldman, R., Reveille, J. D., Hal Scofield, R., Stevens, A. M., Boackle, S. A., Vila, L. M., Chang, D. -M., Song, Y. W., Vyse, T. J., Harley, J. B., Brown, E. E., Edberg, J. C., Kimberly, R. P., Hahn, B. H., Grossman, J. M., Tsao, B. P., La Cava, A., Frostegard, J., Truedsson, L., de Ramon, E., Sabio, J. M., Gonzalez-Escribano, M. F., Martin, J., Ortego-Centeno, N., Callejas, J. L., Sanchez-Roman, J., D'Alfonso, S., Migliarese, S., Sebastiani, G. -D., Galeazzi, M., Witte, T., Lauwerys, B. R., Endreffy, E., Kovacs, L., Vasconcelos, C., da Silva, B. M., Scherbarth, H. R., Marino, P. C., Motta, E. L., Gamron, S., Drenkard, C., Menso, E., Allievi, A., Tate, G. A., Presas, J. L., Palatnik, S. A., Abdala, M., Bearzotti, M., Alvarellos, A., Caeiro, F., Bertoli, A., Paira, S., Roverano, S., Graf, C. E., Bertero, E., Caprarulo, C., Buchanan, G., Guilleron, C., Grimaudo, S., Manni, J., Catoggio, L. J., Soriano, E. R., Santos, C. D., Prigione, C., Ramos, F. A., Navarro, S. M., Berbotto, G. A., Jorfen, M., Romero, E. J., Garcia, M. A., Marcos, J. C., Marcos, A. I., Perandones, C. E., Eimon, A., Parque, S., Battagliotti, C. G., Acevedo, E., Cucho, M., de la Torre, I. G., Rios, M. C., Moctezuma, F., and Maradiaga Cecena, M.

Subjects
Leptin, Hispanic, Gene, Dna determination, immune system diseases, Lep gene, Genotype, 2.1 Biological and endogenous factors, Lupus Erythematosus, Systemic, Immunology and Allergy, Medicine, Aetiology, skin and connective tissue diseases, Priority journal, Leptin pathway, Gene polymorphism, Gene polymorphisms, Single Nucleotide, East asian, Case-Control Studie, Human, Lepr gene, Immunology, Case control study, Lupus, Single-nucleotide polymorphism, Major clinical study, Systemic lupus erythematosu, Autoimmune Disease, Polymorphism, Single Nucleotide, Article, European american, Systemic lupus erythematosus, Clinical Research, Genetic susceptibility, Genetics, Genetic predisposition, Humans, Genetic Predisposition to Disease, Genetic Testing, African american, Polymorphism, Genetic risk, Inflammation, Lupus Erythematosus, business.industry, Inflammatory and immune system, Pparg gene, Marta E. Alarcón-Riquelme for the BIOLUPUS and GENLES networks, Systemic, Case-control study, Single nucleotide polymorphism, Case-Control Studies, Multiple comparisons problem, Genetic association, Ghsr gene, business, Controlled study
Abstract

Leptin is abnormally elevated in the plasma of patients with systemic lupus erythematosus (SLE), where it is thought to promote and/or sustain pro-inflammatory responses. Whether this association could reflect an increased genetic susceptibility to develop SLE is not known, and studies of genetic associations with leptin-related polymorphisms in SLE patients have been so far inconclusive. Here we genotyped DNA samples from 15,706 SLE patients and healthy matched controls from four different ancestral groups, to correlate polymorphisms of genes of the leptin pathway to risk for SLE. It was found that although several SNPs showed weak associations, those associations did not remain significant after correction for multiple testing. These data do not support associations between defined leptin-related polymorphisms and increased susceptibility to develop SLE. © 2015 Elsevier Inc.

Published
2015
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9. [Hyperhomocystinemia as a thrombotic risk factor in patients suffering from systemic lupus erithematosus and antiphospholipid syndrome].

Author

Onetti L, Villafañe S, Menso E, Drenkard C, Gamron S, Barberis G, and Onetti CM

Subjects
Adult, Aged, Antiphospholipid Syndrome blood, Antiphospholipid Syndrome epidemiology, Argentina epidemiology, Biomarkers blood, Case-Control Studies, Chi-Square Distribution, Female, Humans, Hyperhomocysteinemia blood, Lupus Erythematosus, Systemic blood, Male, Middle Aged, Pregnancy, Risk Factors, Antibodies, Antiphospholipid blood, Antiphospholipid Syndrome complications, Homocysteine blood, Hyperhomocysteinemia complications, Lupus Erythematosus, Systemic complications, Thrombosis etiology
Abstract

Objectives: to detect the prevalence of hyperhcy in SLE patients with and without antiphospholipid syndrom; to compare the Hcy levels between those patients and healthy controls and to determine the correlation between hyperhcy and antiphospholipid antibodies., Patients and Methods: we studied 44 SLE patients: 17 had antiphospholipid syndrom and 27 didn't have it, and we compared them to 24 healthy controls. All of them where checked clinically and with laboratory tests like anticardiolypin antibodies, lupus anticoagulant and Hcy. Hcy > 9 was considered abnormal. Patient who had hyperhcy were treated with folic acid+vitB6+vitB12 a month along., Statistical Analysis: cualytative variables: chi square or Fischer's; cuantitative variables: Student's T test or Mann-Whitney's test., Results and Conclusions: there were 35 trombotic manifestations in 44 patients. Hyperhcy was present in 27 SLE patients (61,4%), 12 of them had antiphospholipid syndrom. Hcy concentrations patients vs.controls was statisticaly different (p= 0,002). There was also stastisticaly different the hcy concentration from SLE patients with SAF vs controls (p=0,003) and without SAF vs controls (p= 0,015). From 33 SLE patients, 20 (33%) were aCL(+). 15(75%) of them had hiperhcy.

Published
2005

10. [Hyperhomocysteine like thrombocytic risk factor in patient with systemic lupus erythematous with antiphospholipid syndrome].

Author

Onetti L, Villafañe S, Menso E, Drenkard C, Gamron S, Barberis G, and Onetti CM

Subjects
Adult, Aged, Antibodies, Antiphospholipid blood, Antiphospholipid Syndrome blood, Argentina, Female, Homocysteine blood, Humans, Hyperhomocysteinemia blood, Lupus Erythematosus, Systemic blood, Male, Middle Aged, Risk Factors, Thrombosis blood, Venous Thrombosis blood, Antiphospholipid Syndrome physiopathology, Hyperhomocysteinemia complications, Lupus Erythematosus, Systemic physiopathology, Thrombosis etiology
Abstract

Objectives: to detect the prevalence of hyperhcy in SLE patients with and without antiphospholipid syndrom; to compare the Hcy levels between those patients and healthy controls and to determine the correlation between hyperhcy and antiphospholipid antibodies., Patients and Methods: we studied 44 SLE patients: 17 had antiphospholipid syndrom and 27 didn't have it, and we compared them to 24 healthy controls. All of them where checked clinically and with laboratory tests like anticardiolypin antibodies, lupus anticoagulant and Hcy. Hcy > 9 was considered abnormal. Patient who had hyperhcy were treated with folic acid+vitB6+vitB12 a month along., Statistical Analysis: cualytative variables: chi square or Fischer's; cuantitative variables: Student's T test or Mann-Whitney's test., Results and Conclusions: there were 35 trombotic manifestations in 44 patients. Hyperhcy was present in 27 SLE patients (61,4%), 12 of them had antiphospholipid syndrom. Hcy concentrations patients vs.controls was statisticaly different (p=0,002). There was also stastisticaly different the hcy concentration from SLE patients with SAF vs controls (p=0,003) and without SAF vs controls (p= 0,015). From 33 SLE patients, 20 (33%) were aCL(+). 15(75%) of them had hiperhcy.

Published
2005

11. [Expression of leukocytic adhesion molecules in a patient with common variable immunodeficiency].

Author

Menso E, Alberto Romagnoli P, Teresa Criscuolo M, Federico Barcelona P, Gerardo Collino CJ, and Marcelo Serra H

Subjects
Adult, Antigens, CD analysis, Blood immunology, Cell Adhesion Molecules immunology, Common Variable Immunodeficiency metabolism, Flow Cytometry, Humans, Immunoglobulins analysis, Immunophenotyping, Leukocyte Count, Lymphocyte Activation, Lymphocyte Subsets, Male, Saliva immunology, Cell Adhesion Molecules analysis, Common Variable Immunodeficiency immunology
Abstract

Background: Common variable immunodeficiency is one of the main antibodies' deficiency syndromes., Objective: To present the immunological study of a 29-year-old patient with common variable immunodeficiency who assisted to a check-up after being four years without treatment with gammaglobuline., Material and Methods: We studied a sample of peripheral blood and saliva of a patient with common variable immunodeficiency and that of a healthy patient (control). Assessment of immunoglobulin G, immunoglobulin A and immunoglobuin M was performed by a simple radial immunodiffusion test, and immunoglobulin E by immunoassay. Immunophenotypic study of leukocytic subpopulations was done by citometry by using the following panel of monoclonal antibodies: CD3 (Leu-4), CD4 (Leu-3a), CD8 (Leu-2a), CD19 (Leu-12), CD14 (Leu-M3), CD11a (LFA-I), CD49d (VLA-4), CD54 (ICAM-1), CD31 (PECAM)., Results: It was found a significant reduction in most of the serum and secretory immunoglobulins, levels of unusual expression of integrines CD11a and CD31 in lymphocytes T related to the low percentage of activated lymphocytes T/memory.

Published
2004

12. Chagas' disease: IgG isotypes against Trypanosoma cruzi cytosol acidic antigens in patients with different degrees of heart damage.

Author

Cerban FM, Gea S, Menso E, and Vottero-Cima E

Subjects
Adult, Animals, Antibodies, Protozoan blood, Antigens, Protozoan blood, Enzyme-Linked Immunosorbent Assay, Humans, Immunoblotting, Immunoglobulin G blood, Immunoglobulin Isotypes blood, Trypanosoma cruzi immunology, Chagas Cardiomyopathy immunology, Chagas Disease immunology
Abstract

We studied the reactivity of IgG isotypes detected in sera from chronic Chagas' disease patients with a Trypanosoma cruzi cytosol acidic antigenic fraction (F IV) and parasite epimastigote forms (EPI). All patients studied had positive serology for Chagas' disease, with normal electrocardiogram (Group I), abnormal ECG without cardiomegaly (Group II), and abnormal ECG with cardiomegaly (Group III). The highest levels of antibodies were observed in sera from Group II patients. A high prevalence of IgG1 and IgG3, low levels of IgG2, and IgG4 isotypes against EPI were found in sera from all groups by ELISA. When the F IV was used as antigen, IgG1 was the main antibody isotype detected by ELISA in all groups of patients. The antigenic recognition patterns by IgG1 among the different clinical groups by immunoblotting of F IV revealed some differences. The sera from Group I recognized antigens of F IV of 80, 53, and 43 kDa. Sera from Group III recognized mainly one antigenic band of 43 kDa. Finally, sera from Group II showed greater diversity of binding by IgG1, detecting between one and six bands in the 80 and 30 kDa ranges.

Published
1993
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13. Antibodies to T. cruzi cytosol acidic antigens (FIV) in Chagas' disease recognize parasite cell surface and human heart epitopes.

Author

Gea S, Gruppi A, Basso B, Menso E, and Vottero-Cima E

Subjects
Adult, Animals, Antibody Specificity, Antigens, Surface immunology, Chagas Cardiomyopathy immunology, Cross Reactions, Enzyme-Linked Immunosorbent Assay, Epitopes immunology, Female, Host-Parasite Interactions, Humans, Male, Antibodies, Protozoan analysis, Antigens, Protozoan immunology, Chagas Disease immunology, Myocardium immunology, Trypanosoma cruzi immunology
Abstract

The expression of T. cruzi electronegative antigens (FIV) on the parasite surface and their cross-reactivity with heart tissue antigens was studied. For the former purpose epimastigotes (EPI) treated with glutaraldehyde were used to absorb antibodies against surface antigens. Glutaraldehyde fixed heart tissue was used for absorption of antibodies in sera from two groups of chagasic patients with normal and altered electrocardiogram. The absorption of sera from normal electrocardiogram group with EPI significantly reduced the anti FIV activity by ELISA (p less than 0.001). The decreased reactivity was observed with the antigenic bands focused at pI about 4.5. Thus, the results indicate that chagasic patients without electrocardiographic alterations have a high percentage of antibodies reactive with T. cruzi cell surface antigens. Serum absorption with glutaraldehyde fixed heart tissue reduced the anti FIV activity from both groups of patients by ELISA and diminished the intensity of several bands focused at pI 4-6.

Published
1990

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