Abstract:
:Induction of cytolytic activity of peripheral blood mononuclear cells towards target cells was studied by preparing bispecific F(ab')2 which was composed of two Fab' fragments, one of which was derived from anti-CD3 monoclonal antibody and the other from anti-tumor monoclonal antibody. After reduction of the interchange disulfide bonds of these fragments by dithiothreitol, a thiol-disulfide interchain reagent, 5,5'-dithiobis-2-nitrobenzoic acid, was added to convert the free SH groups of one of the Fab' fragments to mixed disulfide derivatives. These were then coupled with the other Fab' fragment bearing free SH groups, producing a bispecific hybrid F(ab')2 monomer of high yield. The bispecific F(ab')2 monomers were able to render nonactivated peripheral blood mononuclear cells cytotoxic against natural killer-resistant tumor cell lines at doses as low as 1 microgram/ml. The polymeric forms of the F(ab')2 fragments prepared by use of cross-linking reagents such as N-succinimidyl-3-(2-pyridyldithiol)-propionate (SPDP) or S-acetylmercaptosuccinic acid anhydride (SAMSA) were less efficient for induction of cytolytic activity than the monomeric one. It may be feasible to use bispecific F(ab')2 monomers in cancer immunotherapy because of the ease of preparation, as well as the efficiency in inducing cytolytic activity and their high tissue permeability due to their small size (100-110 kDa). In addition, redirected cytolytic activity towards peripheral blood mononuclear cells by reticuloendothelial system cells, resulting from linking these two types of cells through Fc-Fc receptor interactions, does not occur.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Nitta T,Yagita H,Azuma T,Sato K,Okumura Kdoi
10.1002/eji.1830190814subject
Has Abstractpub_date
1989-08-01 00:00:00pages
1437-41issue
8eissn
0014-2980issn
1521-4141journal_volume
19pub_type
杂志文章abstract::Using a model of 2,4-dinitro-1-fluorobenzene-induced contact hypersensitivity (CHS) we found that, as compared with wild-type mice, IL-15 receptor alpha chain (IL-15Ralpha)-deficient mice showed significantly less ear swelling. This decreased response was associated with diminished expression of CCL5/RANTES and CXCL10...
journal_title:European journal of immunology
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abstract::Granzyme A (TSP-1) is a serine esterase expressed in cytotoxic T and natural killer (NK) cell lines. Its presence in in vivo primed T cells is disputed at present. Here we show that normal rat NK cells contain granzyme A in vivo and that its expression is augmented by their short-term in vitro treatment with IL 2. Gra...
journal_title:European journal of immunology
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abstract::Prostein is a prostate tissue-specific protein that is uniquely and abundantly expressed in normal and cancerous prostate tissues. Due to this expression profile, we examined the immunogenicity of prostein as a potential vaccine candidate for prostate cancer. To determine the presence of CD8 T cells specific for natur...
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abstract::Interleukin (IL)-6 transsignaling plays a pivotal role in the shift from neutrophil to monocyte recruitment at the inflammatory site. Release of neutrophil IL-6 receptor-alpha (IL-6Ralpha, CD126) in its soluble form is a key step of IL-6 transsignaling, however, its physiological inducers are poorly known. Here, we ob...
journal_title:European journal of immunology
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abstract::Peroxisome proliferator-activated receptor gamma (PPARgamma ), a member of the nuclear receptor superfamily, has recently been described as a modulator of macrophage functions and as an inhibitor of T cell proliferation. Here, we investigated the role of PPARgamma in dendritic cells (DC), the most potent antigen-prese...
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abstract::Chronic hepatitis C virus (HCV) infection frequently develops into liver disease and is accompanied by extra-hepatic autoimmune manifestations. The tetraspanin CD81 is a putative HCV receptor as it binds the E2 envelope glycoprotein of HCV and bona fide HCV particles. Here we show that HCV E2 binding to CD81 on human ...
journal_title:European journal of immunology
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journal_title:European journal of immunology
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abstract::Whereas the role of CD4 T cells in B cell memory generation is well established and unequivocal, the role that CD4 T cells play in CD8 responses was until recently far more elusive and controversial. A series of recent reports, however, have re-assessed the role of CD4 help on CD8 responses and have given rise to surp...
journal_title:European journal of immunology
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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abstract::TGF-beta1 was examined for the ability to regulate Ag-presentation by B cells, using A20-HL B lymphoma cells bearing TNP-specific IgM receptors. Treatment of A20-HL cells with TGF-beta1 at 1 ng/ml, a concentration that inhibited proliferation, enhanced presentation of Ag internalized via surface IgM (sIgM), but not vi...
journal_title:European journal of immunology
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更新日期:2003-07-01 00:00:00
abstract::Fever is associated with improved survival during infection in endothermic and ectothermic species although the protective mechanisms are largely undefined. Previous studies indicate that fever-range thermal stress increases the binding activity of the L-selectin homing receptor in human or mouse leukocytes, thereby p...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200636421
更新日期:2007-10-01 00:00:00
abstract::Membrane-bound IgG was found only on old populations of platelets from normal individuals. This IgG could be dissociated from senescent cells by repeatedly heating the cells. Heat-eluted IgG (He-IgG) prepared from senescent red blood cells was capable of binding to either heat-treated old platelets or Vibrio cholerae ...
journal_title:European journal of immunology
pub_type: 杂志文章,收录出版
doi:10.1002/eji.1830131207
更新日期:1983-12-01 00:00:00
abstract::Mouse mammary tumor virus (MMTV) is acquired by neonates through milk and first infects lymphocytes in Peyer's patches. We show here that newborn mice lacking beta7 integrin or L-selectin were infected with MMTV at wild-type levels in both their lymphoid and mammary tissues. Superantigen-mediated activation and cognat...
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abstract::Thyroglobulin-binding lymphoid cells were identified in the spleen of Obese strain (DS) chickens by their capacity to form rosettes with thyroglobulin-coated chicken red blood cells. The nature of these cells was studied in inhibition experiments using turkey anti-chicken bursa or thymus cell sera and rabbit antisera ...
journal_title:European journal of immunology
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doi:10.1002/eji.1830050810
更新日期:1975-08-01 00:00:00
abstract::In hematopoietic stem cell transplantation (HSCT), when no HLA full-matched donor is available, alternative donors could include one HLA-mismatched donor. Recently, the low expressed HLA-C alleles have been identified as permissive mismatches for the best donor choice. Concerning HLA-A, the degree of variability of ex...
journal_title:European journal of immunology
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doi:10.1002/eji.201545927
更新日期:2015-12-01 00:00:00
abstract::Cyclosporin A (CsA), an immunosuppressive drug which completely suppresses the humoral response to thymus-dependent antigens, does not affect the generation of T helper (Th) cells during an in vitro stimulation of murine spleen cells with sheep red blood cells. The appearance of Th cells depends on time and their deve...
journal_title:European journal of immunology
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doi:10.1002/eji.1830210304
更新日期:1991-03-01 00:00:00
abstract::Although potentially autoreactive T cells are present even in healthy subjects, most individuals do not develop autoimmune disease. It has been well demonstrated that CD4+ CD25+ regulatory T cells play a significant role in controlling the expansion of autoreactive T cells in the periphery. However, some healthy indiv...
journal_title:European journal of immunology
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更新日期:1976-06-01 00:00:00
abstract::Upon treatment with lipopolysaccharide (LPS), primary B cells proliferate and differentiate into plasma cells with concomitant up-regulation of immunoglobulin (Ig) gene expression. Here we examine the role of the Igkappa 3' enhancer in this process using a kappa3'-enhancer-driven beta-globin reporter gene in transgeni...
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abstract::Experimental allergic encephalomyelitis (EAE) is an animal model for the human disease, multiple sclerosis. The LEW rat strain is very susceptible to induction of EAE, whereas the closely related, major histocompatibility complex (MHC)-identical, inbred strain LER is resistant. In this report, the two rat strains have...
journal_title:European journal of immunology
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journal_title:European journal of immunology
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abstract::The monoclonal antibody HC1/6 generated against phorbol 12-myristate 13-acetate-treated U-937 cells recognizes a new cell surface antigen with a broad relative molecular mass ranging from 100 to 150 kDa. This antigen is also present on monocytes, platelets and endothelial cells and is weakly expressed by granulocytes....
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830190804
更新日期:1989-08-01 00:00:00
abstract::We tested the effect of interferon (IFN)-alpha on the specific anti-2,4,6-trinitrophenyl (TNP) response induced by TNP-conjugated polyacrylamide beads in cultures of purified human B cells. IFN-alpha alone had no effect. Interleukin 2 (IL2) alone had a restorative effect which could be considerably (10X) enhanced by I...
journal_title:European journal of immunology
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journal_title:European journal of immunology
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abstract::Large granular lymphocyte clones were prepared from normal human mononuclear cells. Seven clones were studied in detail. All had high cytotoxic activity against the natural killer (NK) cell target K562 and all were T11- and DR-positive but T4- and T8-negative: none released migration inhibitory factor, a characteristi...
journal_title:European journal of immunology
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doi:10.1002/eji.1830150614
更新日期:1985-06-01 00:00:00
abstract::We have previously reported the development of a two-step culture system in which soluble anti-mu monoclonal antibodies prime small resting murine B cells to secrete immunoglobulin (Ig) in response to restimulation with a mixture of interleukin-4 (IL-4) and IL-5. Here we have extended these studies to investigate the ...
journal_title:European journal of immunology
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doi:10.1002/eji.1830230243
更新日期:1993-02-01 00:00:00