Antonio Coutinho

Type I IFN sets the stringency of B cell repertoire selection in the bone marrow (1999)

Vasconcellos, Rita, Braun, Deborah, Coutinho, Antonio, Demengeot, Jocelyne

Locally produced type I interferon (IFN-I) enhances the sensitivity of bone marrow B cell to IgM receptor ligation. The establishment of B cell repertoires, on the other hand, seems to involve...

B-lineage cell deficits in bone marrow of lpr/lpr mice (1996)

Sundblad, Anne, Coutinho, Antonio

Analyses of bone marrow (BM) lymphocytes in C57BL/6 mice homozygous for the lpr mutation (BS.Ipr) disclosed low numbers of pre-B and B cells, as compared with age-matched control B6 mice. BM...

Analysis of natural and disease-associated autoantibody repertoires: anti-endothelial cell IgG autoantibody activity in the serum of healthy individuals and patients with systemic lupus erythematosus (1994)

Ronda, Nicoletta, Haury, Mattias, Nobrega, Alberto, Kaveri, Srinivas V., Coutinho, Antonio, Kazatchkine, Michel D.

The present study demonstrates that natural IgG with anti-endothelial cell activity is present in the serum of healthy individuals and in pooled normal human Ig. By using a novel method that allows...

Skewed V{beta} TCR repertoire of CD8+ T cells in murine Trypanosoma cruzi infection (1994)

Coutinho, Antonio, Hontebeyrle-Joskowicz, Mirellle, Minoprio, Paola, Eisen, Harvey, Bandeira, Antonio

We have followed CD4 and CD8 TCR Vβ repertoires during the acute phase of Trypanosoma cruzi infection in a resistant mouse strain (C57BL/6). No major changes were found in the Vfl TCR...

Endogenous VH gene family expression in immunoglobulin-transgenic mice: evidence for selection of antibody repertoires (1991)

Grandien, Alf, Coutinho, Antonio, Andersson, Jan, Freitas, Antonio A.

VH gene family expression in single cells of the emergent, available and actual B cell repertoires of C57BL/6 mice was compared to that of two immunoglobulln (lg)-transgenic B6 lines (B6-Sp6 and...

Role of B and T lymphocytes in the specific immunosuppression induced by a protein released by a protein monocytes infected with African swine fever virus (1991)

Ribelro, Adilia Dos Santos, Arala-Chaves, Mário Passalaqua, Vilanova, Manuel, Porto, Maria Teresa, Coutinho, Antonio

Some immunobiological aspects of host responses to an Immunosuppressive protein (p36) released by porcine monocytes upon Infection with African swine fever virus were analysed in a murine system....

Cellular basis for the age-associated increase in autoimmune reactions (1990)

Weksler, Marc E., Schwab, Rise, Huetz, Francois, Kim, Young Tai, Coutinho, Antonio

The mechanisms that lead to the increased expression of autoantibodies with age are poorly understood. We have studied the number, size, and density of spleen and peritoneal cells from young and old...

Selection of VH gene repertoires: differentiating B cells of adult bone marrow mimic fetal development (1990)

Freitas, Antonio A., Andrade, Luiz, Lembezat, Marie-Pierre, Coutinho, Antonio, Honjo, T.

In the present study we have compared by in situ hybridization and by a CFU-B colony assay VH family usage in the pre-B and B cell compartments of the bone marrow of adult BALB/c and C57BL/6...

Abnormal T cell selection on nod thymic epithelium is sufficient to induce autoimmune manifestations in C57BL/6 athymic nude mice

Thomas-Vaslin, Véronique, Damotte, Diane, Coltey, Monique, Le Douarin, Nicole M., Coutinho, Antonio, Salaün, Josselyne

To investigate the role of primary T cell repertoire selection in the immunopathogenesis of autoimmune diseases, pure thymic epithelium (TE) from nonobese diabetic (NOD) embryos was grafted into non...

Immunology at the crossroads

Coutinho, Antonio

As decades of research have resulted in few clinical applications, it is time to think about new research strategies to understand the workings of the immune system

Abnormal T cell selection on nod thymic epithelium is sufficient to induce autoimmune manifestations in C57BL/6 athymic nude mice

Thomas-Vaslin, Véronique, Damotte, Diane, Coltey, Monique, Le Douarin, Nicole M., Coutinho, Antonio, Salaün, Josselyne

To investigate the role of primary T cell repertoire selection in the immunopathogenesis of autoimmune diseases, pure thymic epithelium (TE) from nonobese diabetic (NOD) embryos was grafted into non...

Immunology at the crossroads

Coutinho, Antonio

As decades of research have resulted in few clinical applications, it is time to think about new research strategies to understand the workings of the immune system

MECHANISM OF THYMUS-INDEPENDENT IMMUNOCYTE TRIGGERING : MITOGENIC ACTIVATION OF B CELLS RESULTS IN SPECIFIC IMMUNE RESPONSES

Coutinho, Antonio, Gronowicz, Eva, Bullock, Wesley W., Möller, Göran

The present experiments were performed in order to analyze the mechanism by which thymus-independent antigens (nonspecific B-cell mitogens) can induce specific immune responses to antigenic...

Heme oxygenase-1 affords protection against noncerebral forms of severe malaria

Seixas, Elsa, Gozzelino, Raffaella, Chora, Ângelo, Ferreira, Ana, Silva, Gabriela, Larsen, Rasmus, ...

Infection by Plasmodium, the causative agent of malaria, is associated with hemolysis and therefore with release of hemoglobin from RBC. Under inflammatory conditions, cell-free hemoglobin can be...