Bcl-2 prevents death of factor-deprived cells but fails to prevent apoptosis in targets of cell mediated killing.

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：:The contribution of the HLA-DRB1, -B3, and -B5 gene products in the recognition of Dermatophagoides spp. (house dust mite) by helper T cells isolated from an atopic individual (HLA-DRw12, DR7; DRw52b) with perennial rhinitis was investigated. Using a panel of histocompatible and histoincompatible accessory cells, the ...

journal_title：International immunology

authors： O'Hehir RE,Mach B,Berte C,Greenlaw R,Tiercy JM,Bal V,Lechler RI,Trowsdale J,Lamb JR

更新日期：1990-01-01 00:00:00

abstract：:The efficacy of cytotoxic T lymphocytes (CTL) has been shown to be highly dependent upon their functional avidity (the sensitivity of their cellular response to MHC-peptide complexes). To examine this relationship, we employed target cell lysis as a quantitative measure and established a set of four CTL clones that ex...

journal_title：International immunology

authors： Derby MA,Wang J,Margulies DH,Berzofsky JA

更新日期：2001-06-01 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：:NKT cells are characterized by their expression of an NKT-cell-specific invariant antigen-receptor α chain encoded by Vα14Jα18 gene segments. These NKT cells bridge the innate and acquired immune systems to mediate effective and augmented responses; however, the limited number of NKT cells in vivo hampers their analys...

journal_title：International immunology

authors： Ren Y,Dashtsoodol N,Watarai H,Koseki H,Quan C,Taniguchi M

更新日期：2014-10-01 00:00:00

abstract：:Normal human sera contained 10-60 ng/ml of soluble membrane cofactor protein (MCP, CD46) whereas sera of > 50% of the cancer patients contained > 60 ng/ml. MCP purified by immunoaffinity chromatography from both normal and cancer patients' sera consisted of three bands of 56, 47 and 29 kDa on SDS-PAGE/immunoblotting. ...

journal_title：International immunology

authors： Seya T,Hara T,Iwata K,Kuriyama S,Hasegawa T,Nagase Y,Miyagawa S,Matsumoto M,Hatanaka M,Atkinson JP

更新日期：1995-05-01 00:00:00

abstract：:B cell development is a complex process involving interactions between B cell precursors, stroma, and known and unknown ligands and cytokines. In order to more fully understand the requirements for Ig in that development we have created transgenic mice that carry a gamma 2b transgene and express it early in B cell dev...

journal_title：International immunology

authors： Kurtz BS,Witte PL,Storb U

更新日期：1997-03-01 00:00:00

abstract：:Human monocytes isolated from peripheral blood of healthy donors show a time-dependent differentiation into macrophages upon in vitro cultivation, closely mimicking their in vivo migration and maturation into extravascular tissues. The mediator(s) of this maturation process has not been yet defined. We investigated th...

journal_title：International immunology

authors： Coccia EM,Del Russo N,Stellacci E,Testa U,Marziali G,Battistini A

更新日期：1999-07-01 00:00:00

abstract：:Deletion of alpha i2 subunit of heterotrimeric G proteins induces a 2-4-fold increase in the proportions of CD4 and CD8 single-positive (SP) thymocytes as compared with wild-type littermates, but how G alpha i2 is involved in thymocyte development is unknown. To determine a role for G alpha i2 in a specific developmen...

journal_title：International immunology

authors： Zhang Y,Finegold MJ,Jin Y,Wu MX

更新日期：2005-03-01 00:00:00

abstract：:Fas (CD95) is a cell surface death receptor belonging to the tumor necrosis factor receptor superfamily, which mediates apoptosis-inducing signaling when activated by Fas ligand or its agonistic antibody. lpr mice with a loss of apoptosis-inducing function mutation in the Fas gene develop systemic autoimmune disease a...

journal_title：International immunology

authors： Takahashi S,Futatsugi-Yumikura S,Fukuoka A,Yoshimoto T,Nakanishi K,Yonehara S

更新日期：2013-05-01 00:00:00

abstract：:During brain development, the generation of neurons and glial cells is rigorously regulated by diverse mechanisms including the immune system. Dysfunction of the developing system results in the onset of neurodevelopmental disorders and psychological disorders. Recent studies have demonstrated that the immune system i...

journal_title：International immunology

authors： Tanabe S,Yamashita T

更新日期：2018-09-25 00:00:00

abstract：:The extracellular signal-regulated kinase (ERK) signaling pathway is strongly activated in response to TCR stimulation in normal T cells. However, the extent to which activation of the ERK pathway is necessary for TCR-stimulated cytokine production is not clear. We have addressed this question by use of two separate m...

journal_title：International immunology

authors： Egerton M,Fitzpatrick DR,Kelso A

更新日期：1998-02-01 00:00:00

abstract：:The regulation of MHC class II expression by the class II transactivator (CIITA) is complex and differs in various cell types depending on the relative activity of three CIITA promoters. Here we show that, in plasma cell tumors, the deacetylase inhibitor trichostatin A (TSA) elicits PIII-CIITA but does not activate th...

journal_title：International immunology

authors： Chou SD,Khan AN,Magner WJ,Tomasi TB

更新日期：2005-11-01 00:00:00

abstract：:Tyrosine kinase-2 (Tyk2) participates in the signaling pathways of multiple cytokines in innate and acquired immunity. In the present study, we investigated the in vivo involvement of Tyk2 in anti-type II collagen antibody-induced arthritis (CAIA) using Tyk2-deficient mice. Hind paws of wild-type mice showed massive s...

journal_title：International immunology

authors： Ishizaki M,Muromoto R,Akimoto T,Ohshiro Y,Takahashi M,Sekine Y,Maeda H,Shimoda K,Oritani K,Matsuda T

更新日期：2011-09-01 00:00:00

abstract：:Antigen engagement of the TCR may lead to activation of mature T cells while inducing deletion or positive selection of immature thymocytes. Using thymocytes from TCR transgenic mice recognizing the allo-antigen H-2Kb we investigated whether double-positive CD4+CD8+ (DP) thymocytes constitute a particular developmenta...

journal_title：International immunology

authors： Simon AK,Auphan N,Schmitt-Verhulst AM

更新日期：1996-09-01 00:00:00

abstract：:LPS-binding protein (LBP) can facilitate the transfer of cell wall components of both Gram-negative bacteria (LPS) and Gram-positive bacteria (lipoteichoic acid) to inflammatory cells. Although LBP is predominantly produced in the liver, recent studies have indicated that this protein is also synthesized locally in th...

journal_title：International immunology

authors： Branger J,Florquin S,Knapp S,Leemans JC,Pater JM,Speelman P,Golenbock DT,van der Poll T

更新日期：2004-11-01 00:00:00

abstract：:Experiments in transgenic mice have demonstrated that thymocyte differentiation into the mature CD4+ helper or CD8+ cytotoxic T cell lineage is ultimately dependent upon the specificity of the TCR for class II or class I MHC molecules respectively. However, the initial mechanistic events involved in this process remai...

journal_title：International immunology

authors： DeKoning J,Carbone FR,Kaye J

更新日期：1995-04-01 00:00:00

abstract：:Mice with a targeted deletion of the T-bet gene exhibit spontaneous airway hyperresponsiveness (AHR), airway inflammation, enhanced recovery of T(h)2 cytokines from bronchoalveolar lavage fluid, sub-epithelial collagen deposition and myofibroblast transformation. Here we analyze the mechanisms responsible for the chro...

journal_title：International immunology

authors： Finotto S,Hausding M,Doganci A,Maxeiner JH,Lehr HA,Luft C,Galle PR,Glimcher LH

更新日期：2005-08-01 00:00:00

abstract：:The human chymase (HC) is a major granule constituent of mast cells (MCs) residing in the connective tissue and the sub-mucosa. Although many potential substrates have been described for this important MC enzyme, its full range of in vivo substrates has most likely not yet been identified. A major step toward a better...

journal_title：International immunology

authors： Andersson MK,Enoksson M,Gallwitz M,Hellman L

更新日期：2009-01-01 00:00:00

abstract：:Signal transducer and activator of transcription-1 (STAT1) signaling mediate most biological functions of IFNalpha, IFNbeta and IFNgamma although recent studies indicate that IFNgamma can alter expression of several genes via a STAT1-independent pathway. STAT1 is critical for immunity against a variety of intracellula...

journal_title：International immunology

authors： Roth KM,Gunn JS,Lafuse W,Satoskar AR

更新日期：2009-01-01 00:00:00

abstract：:Lymphocyte homing to lymph nodes is regulated by transient but specific interactions between lymphocytes and high endothelial venules (HEVs), the initial phase of which is mainly governed by the leukocyte adhesion molecule L-selectin, which recognizes sulfated and sialylated O-linked oligosaccharides displayed on sial...

journal_title：International immunology

authors： Kanda H,Tanaka T,Matsumoto M,Umemoto E,Ebisuno Y,Kinoshita M,Noda M,Kannagi R,Hirata T,Murai T,Fukuda M,Miyasaka M

更新日期：2004-09-01 00:00:00

abstract：:Previously we observed elevation of the serum concentration of two acute-phase protein (AFP) complement components (C9 and C1-inhibitor) in patients with chronic hepatitis C who responded (R) to IFN-alpha therapy, but not in non-responders (NR). In the present study we investigated the effect of high-dose IFN-alpha th...

journal_title：International immunology

authors： Kalabay L,Nemesánszky E,Csepregi A,Pusztay M,Dávid K,Horváth G,Ibrányi E,Telegdy L,Pár A,Bíró A,Fekete B,Gervain J,Horányi M,Ribiczey P,Csöndes M,Kleiber M,Walentin S,Prohászka Z,Füst G

更新日期：2004-01-01 00:00:00

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：:NKT follicular helper cells (NKTfh cells) are a recently discovered functional subset of CD1d-restricted NKT cells. Given the potential for NKTfh cells to promote specific antibody responses and germinal center reactions, there is much interest in determining the conditions under which NKTfh cells proliferate and/or d...

journal_title：International immunology

authors： Rampuria P,Lang ML

更新日期：2015-05-01 00:00:00

abstract：:The functional maturation process of medullary-type CD4(-)CD8(+) [CD8 single-positive (SP)] thymocytes remains largely uncharacterized. We describe a phenotypic analysis of CD8 SP medullary-type thymocytes and find a remarkable heterogeneity within this thymic cell population. While mature CD8(+) T cells in the periph...

journal_title：International immunology

authors： Tian T,Zhang J,Gao L,Qian XP,Chen WF

更新日期：2001-03-01 00:00:00

abstract：:Using anti-Tac (anti-alpha chain) and 2R-B (anti-beta chain) antibodies, we studied the roles of IL-2 receptor subunits (alpha and beta chains) in the formation of IL-2 and high-affinity IL-2 receptor complex, which is the initial event of IL-2 induced T cell growth. High-affinity IL-2 binding which was undetectable i...

journal_title：International immunology

authors： Kamio M,Uchiyama T,Arima N,Itoh K,Ishikawa T,Hori T,Uchino H

更新日期：1990-01-01 00:00:00

abstract：:The lectin complement pathway is initiated by binding of mannose-binding lectin (MBL) and MBL-associated serine protease (MASP) to carbohydrates. In the human lectin pathway, MASP-1 and MASP-2 are involved in the proteolysis of C4, C2 and C3. Here we report that the human MBL-MASP complex contains a new 22 kDa protein...

journal_title：International immunology

authors： Takahashi M,Endo Y,Fujita T,Matsushita M

更新日期：1999-05-01 00:00:00

abstract：:It was recently shown that paf-acether (paf) synthesized in different cell types remains partly cell-associated. In the present work, we tested the hypothesis that cell-associated paf might in fact remain exposed on the external plasma membrane and be able to exert its biological functions. Human polymorphonuclear neu...

journal_title：International immunology

authors： Ninio E,Leyravaud S,Bidault J,Jurgens P,Benveniste J

更新日期：1991-11-01 00:00:00

abstract：:HIV infected T and monocytic cell lines could activate and fix C3 fragments when incubated in human serum under conditions allowing for activation of the alternative complement pathway. Normal T lymphocytes incubated with HIV could also activate and fix C3. This activity was, at least in part, the property of the viru...

journal_title：International immunology

authors： Yefenof E,Asjö B,Klein E

更新日期：1991-04-01 00:00:00

abstract：:Dendritic cells (DC) are key players in the initiation and modulation of adaptive immune responses due to their ability to acquire and present antigen and stimulate T cells. For the induction of effector T cell functions, antigen must be presented by activated DC. In this study, we have compared uptake of antigen by m...

journal_title：International immunology

authors： Tirapu I,Giquel B,Alexopoulou L,Uematsu S,Flavell R,Akira S,Diebold SS

更新日期：2009-07-01 00:00:00