abstract：:We have examined the role in B cell activation of ornithine decarboxylase (ODC), the labile rate-limiting enzyme in the synthesis of polyamines thought to be required for S phase entry in all cells. When small resting mouse splenic B cells were stimulated with the mitogenic agents phorbol myristate acetate (PMA) plus ...

journal_title：International immunology

authors： Molitor J,Pace W,Stunz L,Vigna J,Louie S,Ashman R

更新日期：1994-11-01 00:00:00

abstract：:Nitric oxide (NO) is formed constitutively in neurons by the constitutive enzyme NO synthase (cNOS) and acts as a neurotransmitter. It has already been shown that cNOS-containing neurons are identical to neurons staining for NADPH diaphorase and vice versa. Effector cells of the immune response produce high NO levels ...

journal_title：International immunology

authors： Flesch IE,Hess JH,Kaufmann SH

更新日期：1994-11-01 00:00:00

abstract：:Quantitative expression of class I genes varies widely in different tissues, during development and in some neoplastic cells. Regulatory DNA sequences controlling levels of transcription of class I genes have been characterized in the murine and swine promoters. Although some regulatory features appear to be retained ...

journal_title：International immunology

authors： Blanchet O,Gazin C,L'Haridon M,Tatari Z,Degos L,Sigaux F,Paul P

更新日期：1994-10-01 00:00:00

abstract：:Inadequate co-stimulation of tumor reactive T cells may contribute to the fact that antigenic tumors are not normally rejected by the immune system. We recently reported that the induction of profound unresponsiveness in a T cell clone by melanoma cells expressing MHC class II antigens may provide a mechanism for thes...

journal_title：International immunology

authors： Becker JC,Czerny C,Bröcker EB

更新日期：1994-10-01 00:00:00

abstract：:The origin of cell activation in post-radiation fibrosis and its chronic extension are still poorly understood. Since local IL-2 cancer treatment sometimes triggers intraperitoneal fibrosis we have analyzed three myofibroblastic cell strains from post-radiation skin fibrosis (FPR7, FPR10 and FPR15) for their interacti...

journal_title：International immunology

authors： Alileche A,Han D,Plaisance S,Assier E,Sahraoui Y,Clemanceau C,Metivier D,Brouty-Boyer D,Jasmin C,Azzarone B

更新日期：1994-10-01 00:00:00

abstract：:T cells of an unique phenotype (CD3+CD4-CD8- alpha beta TCR+) develop in vitro from the hematopoietic progenitors, the majority of which carry homologous alpha beta TCR (V alpha 4J alpha 28/V beta 2D beta 1.1J beta 2.6). In the present study, antigen corresponding to the particular alpha beta TCR was investigated, tak...

journal_title：International immunology

authors： Kubota H,Sato M,Ogawa Y,Iwai K,Hattori M,Yoshida T,Minato N

更新日期：1994-09-01 00:00:00

abstract：:O-acetyl GD3 ganglioside is a cell surface molecule of some neural, neural crest and renal cells. Here we show, by using mAbs specific for O-acetyl GD3 (clone 27A) and flow-cytometric, biochemical or immunological techniques, that it is also expressed at high intensity level on the surface of 49.6% (median) of the CD3...

journal_title：International immunology

authors： Reivinen J,Holthöfer H,Miettinen A

更新日期：1994-09-01 00:00:00

abstract：:Human dendritic cells (DC) generated from CD34+ hematopoietic progenitors cultured in the presence of granulocyte macrophage colony stimulating factor (GM-CSF) and tumor necrosis factor (TNF)-alpha are related to Langerhans cells (DLC) and have been shown to induce a strong proliferation of allogeneic CD4+ T cells. Th...

journal_title：International immunology

authors： Caux C,Massacrier C,Vanbervliet B,Barthelemy C,Liu YJ,Banchereau J

更新日期：1994-08-01 00:00:00

abstract：:After a 3 week course (approximately), during which there is marked lymphoid hyperplasia, Trypanosoma musculi infections in young-adult mice are cured by an immune mechanism involving antibodies of the IgG2a isotype. Both the lymphoid hyperplasia and IgG2a antibody response are T-cell-dependent events and both process...

journal_title：International immunology

authors： Utsuyama M,Albright JW,Holmes KL,Hirokawa K,Albright JF

更新日期：1994-08-01 00:00:00

abstract：:Rheumatic fever (RF) follows a throat infection with different M-serotypes of beta-hemolytic group A streptococci (GAS) and can affect different tissues, predominantly the heart. It is thought to be an autoimmune illness. Although histological examination of affected heart shows an infiltrate consisting mainly of T ce...

journal_title：International immunology

authors： Pruksakorn S,Currie B,Brandt E,Phornphutkul C,Hunsakunachai S,Manmontri A,Robinson JH,Kehoe MA,Galbraith A,Good MF

更新日期：1994-08-01 00:00:00

abstract：:IL-12 is a cytokine produced by monocytes and Epstein-Barr virus-transformed B cells which initiates Th1 responses by inducing the development of CD4+, IFN-gamma producing Th1 T cells in mouse and human. We have previously reported that allergen-specific CD4+ Th2 T cell clones produce IFN-gamma, following activation b...

journal_title：International immunology

authors： Yssel H,Fasler S,de Vries JE,de Waal Malefyt R

更新日期：1994-07-01 00:00:00

abstract：:Intracellular signaling triggered by the antigen receptor of primary B-1 (CD5+ B) lymphocytes is insufficient to bring about cell cycle progression to S phase; this appears to result from a block in signal propagation prior to the activation of protein kinase C. The present studies were undertaken to evaluate specific...

journal_title：International immunology

authors： Morris DL,Rothstein TL

更新日期：1994-07-01 00:00:00

abstract：:We report here that different organ grafts are not equally competent to induce tolerance of the host even if they are performed early in development, i.e. before the host's immune system has started to develop. We have grafted the epithelio-mesenchymal rudiment of the bursa of Fabricius between histoincompatible chick...

journal_title：International immunology

authors： Martin C,Belo M,Le Douarin NM,Corbel C

更新日期：1994-06-01 00:00:00

abstract：:BALB/c mice are susceptible to cutaneous leishmaniasis upon infection with Leishmania major while C57BL/6 are not. There is a major promastigote surface protease (PSP or gp63) which is available in both native and recombinant forms, and for which the primary amino acid sequence is known. Immunization with PSP has been...

journal_title：International immunology

authors： Soares LR,Sercarz EE,Miller A

更新日期：1994-05-01 00:00:00

abstract：:Murine bone marrow-derived macrophages (BMM) are able to inhibit the intracellular growth of Mycobacterium bovis and Mycobacterium tuberculosis H37Rv after activation with recombinant (r) IFN and growth inhibition is mediated by reactive nitrogen intermediates (RNI) derived from L-arginine. We now demonstrate that tum...

journal_title：International immunology

authors： Flesch IE,Hess JH,Oswald IP,Kaufmann SH

更新日期：1994-05-01 00:00:00

abstract：:Germline CH transcripts initiate from a non-coding I exon and terminate downstream of the associated CH exons. Ig heavy chain class switch recombination from the VDJ-C mu gene to particular downstream CH genes appears to be regulated by a process that involves mitogen and/or cytokine induction of germline CH transcrip...

journal_title：International immunology

authors： Li SC,Rothman PB,Zhang J,Chan C,Hirsh D,Alt FW

更新日期：1994-04-01 00:00:00

abstract：:The utilization of individual VH7183 genes in the autoimmune non-obese diabetic (NOD) mouse and the normal C57BL/6 mouse, both carrying the IgHb haplotype, was investigated. Nucleotide sequence analyses of a large number of VHDJH rearrangements utilizing VH7183 gene segments allowed us to identify 10 individual member...

journal_title：International immunology

authors： Andersson A,Ekstrand-Hammarström B,Eriksson B,Overmo C,Holmberg D

更新日期：1994-04-01 00:00:00

abstract：:We have followed CD4 and CD8 TCR V beta repertoires during the acute phase of Trypanosoma cruzi infection in a resistant mouse strain (C57BL/6). No major changes were found in the V beta TCR distributions analyzed (covering roughly 40% of the TCR repertoire) in peripheral CD4 T lymphocytes, confirming the polyclonal n...

journal_title：International immunology

authors： Leite-de-Moraes MC,Coutinho A,Hontebeyrie-Joskowicz M,Minoprio P,Eisen H,Bandeira A

更新日期：1994-03-01 00:00:00

abstract：:The MHC class I antigens enhance the T cell response to various mitogenic stimuli. Class I antigens co-cap and associate with the CD3 structure on these cells. The present work shows that co-aggregation of these MHC antigens with CD3 induces a sustained elevated Ca2+ response in T cells. The duration required for a 50...

journal_title：International immunology

authors： Dasgupta JD,Granja CB,Yunis EJ,Relias V

更新日期：1994-03-01 00:00:00

abstract：:In order to further understand the developmental aspects of B-1 cells, we characterized the ontogeny of this B cell population in the spleen and peritoneal cavity of BALB/c mice. Although there are B-1 cells in the spleen within the first 1-3 weeks after birth, they do not at any stage represent the majority of spleni...

journal_title：International immunology

authors： Hamilton AM,Lehuen A,Kearney JF

更新日期：1994-03-01 00:00:00

abstract：:TCR engagement in the thymus results in both survival and elimination signals for developing thymocytes. To examine whether both signals can be provided by the same cell type, we investigated the ability of a thymic epithelial cell (TEC) line 427.1, previously shown to allow positive selection in the thymus, to induce...

journal_title：International immunology

authors： Vukmanović S,Jameson SC,Bevan MJ

更新日期：1994-02-01 00:00:00

abstract：:Transforming growth factor (TGF)-beta has been shown to stimulate isotype switching to IgA in cultures of lipopolysaccharide (LPS)-stimulated B cells. The induction of isotype switching is associated with the appearance of novel germline alpha transcripts that cannot be found in cultures stimulated with LPS alone. TGF...

journal_title：International immunology

authors： Lebman DA,Park MJ,Hansen-Bundy S,Pandya A

更新日期：1994-01-01 00:00:00

abstract：:Lymphocyte migration from the blood into specific tissues is directed by their expression of adhesion molecules referred to as homing receptors. The homing receptor L-selectin, for example, directs the migration of lymphocytes into peripheral lymph nodes (PLN). Since bovine gamma delta T cells, a major lymphocyte subs...

journal_title：International immunology

authors： Walcheck B,Jutila MA

更新日期：1994-01-01 00:00:00

abstract：:The kinetics of kappa light (kappa L) chain gene rearrangement and expression on mRNA and protein level has been studied with four stromal cell/IL-7 reactive, long-term in vitro proliferating pre-B cell lines and clones, two from fetal liver of normal mice and two from fetal liver of E microH-bcl-2 transgenic (bcl-2-t...

journal_title：International immunology

authors： Grawunder U,Haasner D,Melchers F,Rolink A

更新日期：1993-12-01 00:00:00

abstract：:The co-existence of tumor specific immunity with a progressing tumor is observed in a variety of experimental systems and remains one of the major paradoxes of tumor immunology. We now report that a human melanoma cell line (SMC) expressing MHC class II was able to induce clonal anergy in a specific, MHC-restricted CD...

journal_title：International immunology

authors： Becker JC,Brabletz T,Czerny C,Termeer C,Bröcker EB

更新日期：1993-12-01 00:00:00

abstract：:The previously defined binding motif of MHC class I H-2Kd-restricted antigenic peptides consists of a Y residue in position P2 and a hydrophobic residue with a large aliphatic side chain (L, I, or V) in position P9/P10 of optimal 9- or 10-mer peptides. We show now that the presence of a charged or a F residue in posit...

journal_title：International immunology

authors： Eberl G,Sabbatini A,Servis C,Romero P,Maryanski JL,Corradin G

更新日期：1993-11-01 00:00:00

abstract：:Antibody to phosphatidyl choline (PtC) is produced spontaneously in mice, by approximately 2-10% of naturally occurring CD5+ (B1) B cells in the peritoneum. Much of this antibody is encoded by the VH11 gene associated with a specific V kappa 9 gene. Constraints on the size and structure of the H chain CDR3 have been d...

journal_title：International immunology

authors： Arnold LW,Spencer DH,Clarke SH,Haughton G

更新日期：1993-11-01 00:00:00

abstract：:Two major B cell subpopulations were identified in the IgD- compartment of tonsils and subsequently isolated. They displayed the following phenotypes: CD10+CD38+CD44- (CD38+ B cells) and CD10-CD38-CD44+ (CD38- B cells). Of the CD38- B cells, 70% also expressed CD24 and CD39, whereas CD77 was specifically distributed o...

journal_title：International immunology

authors： Lagresle C,Bella C,Defrance T

更新日期：1993-10-01 00:00:00

abstract：:The peptide motifs of two HLA molecules, B8 and DR3(17), which are associated with autoimmune diseases including myasthenia gravis, were determined from natural peptide pools using Edman degradation. The majority of HLA-B8 ligands are nonamers preferentially terminated by leucine. As a characteristic feature of the HL...

journal_title：International immunology

authors： Malcherek G,Falk K,Rötzschke O,Rammensee HG,Stevanović S,Gnau V,Jung G,Melms A

更新日期：1993-10-01 00:00:00

abstract：:The alternative complement pathway (ACP) in vertebrates is known to be important in inflammatory reactions, and to be activated by foreign substances such as bacterial lipopolysaccharide (LPS) and zymosan, although to date no intrinsic activators have been identified except complement receptor type 2. From the point o...

journal_title：International immunology

authors： Oshima H,Soma G,Mizuno D

更新日期：1993-10-01 00:00:00

abstract：:CD69, an 'activation marker' that is rapidly induced on mature T cells after stimulation through the T cell antigen receptor (TCR) was found to be expressed on approximately 10% of normal thymocytes. All of these CD69+ thymocytes express alpha beta TCR, and they include both TCRlowCD4+CD8+ and TCRhighCD4+CD8- or CD4-C...

journal_title：International immunology

authors： Yamashita I,Nagata T,Tada T,Nakayama T

更新日期：1993-09-01 00:00:00

abstract：:The M54 transgenic mouse line, which carries the 17.2.25 Ig mu heavy chain gene, rearranges Ig heavy chains and expresses both transgenic and endogenous mu. B cell lineage development is selectively impaired in these mice and cells that simultaneously express transgenic and endogenous mu ('double-producers') are commo...

journal_title：International immunology

authors： Lam KP,Herzenberg LA,Stall AM

更新日期：1993-09-01 00:00:00

abstract：:Cytotoxic T lymphocyte (CTL) mediated killing has classically been associated with a high level of specificity for the target cell. However, when CTL clones and specific target cells were copelleted with innocent bystander cells for which the CTL was not specific, these bystander cells were also lysed. Bystander lysis...

journal_title：International immunology

authors： Burrows SR,Fernan A,Argaet V,Suhrbier A

更新日期：1993-09-01 00:00:00

abstract：:Based on the evidence that CD8+ cytotoxic T cells (CTL) precursors do not appear to distinguish between virus-infected cells and viral peptide-pulsed syngeneic cells, we have developed methods for priming class I MHC molecule restricted CD8+ CTL with such peptides without using any adjuvant. We were able to prime in v...

journal_title：International immunology

authors： Takahashi H,Nakagawa Y,Yokomuro K,Berzofsky JA

更新日期：1993-08-01 00:00:00

abstract：:Taking advantage of the recently demonstrated presence of N-aminopeptidases and the serine protease dipeptidyl aminopeptidase IV (DPP IV) at the surface of human myeloblastic HL-60 cells, the regulation of these protease activities in HL-60 cell differentiation has been assessed using combined spectrophotometric and f...

journal_title：International immunology

authors： Laouar A,Wietzerbin J,Bauvois B

更新日期：1993-08-01 00:00:00

abstract：:A small proportion of the sIg+ B lymphocytes in peripheral lymphoid organs [22% in spleen and 6% in lymph node (LN)] in rat carries the Thy-1 antigen. These Thy-1+ B cells represent newly formed bone marrow (BM) derived (or immature) B cells. In this study we investigated the kinetic behavior of Thy-1+ and Thy-1- B ce...

journal_title：International immunology

authors： Deenen GJ,Kroese FG

更新日期：1993-07-01 00:00:00

abstract：:We demonstrate here that human necrosis factor-alpha, a potent neutrophil activator, induces rapid (within 3 h) apoptosis of these cells, i.e. neutrophils treated with this cytokine exhibit (i) light and electron microscopic changes characteristic to apoptotic cells, (ii) reduced propidium iodide binding to DNA, and (...

journal_title：International immunology

authors： Takeda Y,Watanabe H,Yonehara S,Yamashita T,Saito S,Sendo F

更新日期：1993-06-01 00:00:00

abstract：:Spectroscopic methods have been applied to elucidate conformational differences responsible for the immunological diversity of two synthetic multichain copolymers, Tyr1Tyr2Glu3Glu4-poly-DL-Ala--poly-Lys and Tyr1Glu2Tyr3Glu4-poly-DL-Ala--poly-Lys. Despite their far-reaching structural similarity in the epitope peptide ...

journal_title：International immunology

authors： Muszkat KA,Schechter B,Sela M

更新日期：1993-06-01 00:00:00

abstract：:Tissue selective traffic of lymphocytes into different lymphoid organs is mediated by adherence of blood borne lymphocytes to specialized endothelial cells lining the high endothelial venules (HEV) in lymphoid organs. Lymphocytes discriminate between HEV in peripheral lymph nodes and in mucosal lymphoid tissues by mea...

journal_title：International immunology

authors： Mebius RE,Brevé J,Kraal G,Streeter PR

更新日期：1993-05-01 00:00:00

abstract：:Murine complement receptor type 2 (MCR2) is homologous to human CR2, whereas murine CR1 (MCR1) is structurally and evolutionary different from human CR1. Since ligand specificities of MCR1 and MCR2 are not completely clarified, we analyzed their functional characteristics to correlate them with structural information ...

journal_title：International immunology

authors： Pramoonjago P,Takeda J,Kim YU,Inoue K,Kinoshita T

更新日期：1993-04-01 00:00:00