Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Djemel Aït-Azzouzene"'
Autor:
Kevin Walsh, Amanda L. Gavin, Miyo Aoki-Ota, David Nemazee, Bao Hoa Duong, Djemel Aït-Azzouzene, Takayuki Ota, Jose Luis Vela, Christoph Huber
Publikováno v:
The Journal of Immunology. 184:4143-4158
Transitional B cells turn over rapidly in vivo and are sensitive to apoptosis upon BCR ligation in vitro. However, little direct evidence addresses their tolerance sensitivity in vivo. A key marker used to distinguish these cells is IgD, which, throu
Publikováno v:
Immunity. 28(2):161-170
Summary The recombining sequence (RS) of mouse and its human equivalent, the immunoglobulin (Ig) kappa deleting element ( IGKDE ), are sequences found at the 3′ end of the Ig kappa locus ( Igk ) that rearrange to inactivate Igk in developing B cell
Autor:
Bao Duong, Kamal D. Puri, David Nemazee, Laurent Verkoczy, Djemel Aït-Azzouzene, Patrick Skog, Jose Luis Vela
Publikováno v:
The Journal of Immunology. 178:6332-6341
PI3K plays key roles in cell growth, differentiation, and survival by generating the second messenger phosphatidylinositol-(3,4,5)-trisphosphate (PIP3). PIP3 activates numerous enzymes, in part by recruiting them from the cytosol to the plasma membra
Publikováno v:
European Journal of Immunology. 36:985-996
In mice carrying a synthetic Igkappa-reactive superantigen ("kappa macroself antigen"), low level expression induced split peripheral B cell tolerance in the sIgkappa+ compartment, with striking reductions in follicular and marginal zone (MZ) B cells
Autor:
Patrick Skog, Laurent Verkoczy, Djemel Aït-Azzouzene, Amanda L. Gavin, David Nemazee, Bao Duong
Publikováno v:
The Journal of Immunology. 176:939-948
Peripheral B cell tolerance differs from central tolerance in anatomic location, in the stage of B cell development, and in the diversity of Ag-responsive cells. B cells in secondary lymphoid organs are heterogeneous, including numerous subtypes such
Autor:
Amanda, Gavin, Djemel, Aït-Azzouzene, Annica, Mårtensson, Bao, Duong, Laurent, Verkoczy, José Luis, Vela, José Luis, Skog, Patrick, Skog, David, Nemazee
Publikováno v:
The Keio Journal of Medicine. 53:151-158
This lecture discusses two interrelated topics, B cell tolerance in the peripheral immune system and BAFF. Using the 3-83 antibody transgenic mouse bred to mice carrying cognate antigen in the liver, we previously found that clonal elimination drasti
Publikováno v:
Journal of Biological Chemistry. 278:38220-38228
The tumor necrosis family member BAFF is limiting for the survival of follicular B lymphocytes, but excessive BAFF signaling can lead to autoimmunity, suggesting that its activity must be tightly regulated. We have identified a conserved alternate sp
Autor:
Colette Kanellopoulos-Langevin, Françoise Tchang, Marie-Claude Gendron, Stéphane M. Caucheteux, Djemel Aït-Azzouzene, Anja Langkopf, R. Moutier, Josiane Wantyghem
Publikováno v:
Biology of Reproduction. 65:337-344
We have produced transgenic mice using the mouse placental lactogen type II promoter to force and restrict the expression of the mouse major histocompatibility complex (MHC) class I molecule, H-2K b , to the placenta. We show that the transgenic MHC
Autor:
Colette Kanellopoulos-Langevin, Christian Bleux, José L. Cohen, Marie-Claude Gendron, Djemel Aït-Azzouzene, Anja Langkopf
Publikováno v:
Molecular Reproduction and Development. 50:35-44
Among the numerous hypotheses proposed to explain the absence of fetal rejection by the mother in mammals, it has been suggested that regulation of expression of the polymorphic major histocompatibility complex (MHC) at the fetal-maternal interface p
Autor:
David Nemazee, Takayuki Ota, Anthony B. Cooper, Djemel Aït-Azzouzene, Miyo Aoki-Ota, Amanda L. Gavin, Bao Hoa Duong, Jose Luis Vela
Publikováno v:
Journal of immunology (Baltimore, Md. : 1950). 187(11)
To analyze B lymphocyte central tolerance in a polyclonal immune system, mice were engineered to express a superantigen reactive to IgM of allotype b (IgMb). IgMb/b mice carrying superantigen were severely B cell lymphopenic, but small numbers of B c