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Search results for: Mouse Anti-Human Lung Ag. Antibodies

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Efficacy and safety of ABI793, a novel human anti-human CD154 monoclonal antibody, in cynomolgus monkey renal allotransplantation.

Anti-CD154 monoclonal antibodies (mAbs) cause long-term graft survival in preclinical allotransplantation experiments. This is the first report on the efficacy and safety of ABI793, a novel human anti-human CD154 mAb, in Cynomolgus renal transplant recipients.
Walter Schuler, Marc Bigaud, Volker Brinkmann, Franco Di Padova, Sabine Geisse, Hermann Gram, Valerie Hungerford, Beate Kleuser, Colette Kristofic, Klaus Menninger, Reet Tees, Grazyna Wieczorek, Corinne Wilt, Catherine Wioland, Mauro Zurini

2949 related Products with: Efficacy and safety of ABI793, a novel human anti-human CD154 monoclonal antibody, in cynomolgus monkey renal allotransplantation.

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Allergy to mice. II. Further characterization of two major mouse allergens (AG 1 and AG 3) and immunohistochemical investigations of their sources.

Sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) and quantitative immunoelectrophoretic techniques have been used to characterize further the two major mouse allergens, antigen 1 (Ag 1) and antigen 3 (Ag 3). Gel filtration using Sephacryl S-200 showed Ag 1 to have a molecular weight of 18 kD and Ag 3 of 21 kD. SDS-PAGE followed by Western blotting onto nitrocellulose then incubation with individual antisera directed against each of the two major allergens, and an alkaline phosphatase enzyme system, was used to distinguish between the two allergens and indicated a molecular weight of 17 kD for Ag 1 and 16 kD for Ag 3. Ag 3 but not Ag 1 was shown to contain polysaccharide residues. Immunohistochemical staining of mouse skin sections demonstrated that antigens detected in whole dust extracts were present in the hair follicles, on the hair shafts and on the stratum corneum. Staining of similar sections using the rabbit anti-Ag 3 showed the presence of this major allergen in the hair follicles coating the hairs and extending along the skin surface. Serum from a pool of mouse-allergic subjects also demonstrated staining in the same areas when detected using a fluorescein-labelled anti-human IgE as second antibody. As both major allergens were present in extracts of fur this would appear to be most appropriate for use in diagnosis (i.e. skin test and RAST) and also possibly desensitization. However, dust from isolators (available in greater amounts) would be equally suitable.
J A Price, J L Longbottom

2130 related Products with: Allergy to mice. II. Further characterization of two major mouse allergens (AG 1 and AG 3) and immunohistochemical investigations of their sources.

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Characterization of three restricted specificity monoclonal antibodies raised against the human glioma cell line D-54 MG.

Monoclonal antibodies ( MCAs ) have been derived from a fusion of P3-NS1/1-Ag 4-1 (NS1) myeloma cells and splenocytes immunized to human glioma cell line D-54 MG. MCAs 2F3 , 4C7 , and 5B7 were analyzed by cell surface radioimmunoassay (CS-RIA), quantitative absorption, indirect immunofluorescence, and peroxidase-anti-peroxidase (PAP) immunohistology of unfixed tissue samples. MCA 2F3 exhibits the most highly restricted pattern of reactivity we have observed, reacting only with 5/12 glioblastoma cell lines and 1/4 fetal skin lines by CS-RIA, and to 9/11 glioblastoma tissue samples by PAP and absorption analysis; this MCA is totally nonreactive with melanomas, neuroblastomas, meningiomas, and control non-central nervous system tumors, and to adult and fetal tissues including brain, thymus, spleen, liver, lung, heart, gut, skin, and muscle by PAP analysis. MCAs 4C7 and 5B7 demonstrate neuroectodermal tumor cross-reactivity profiles, reacting with either melanomas ( 5B7 ) or melanomas and neuroblastomas ( 4C7 ); both are reactive with fetal skin, brain, and thymus of less than or equal to 16 weeks of gestational age. Other than this latter fetal antigen reactivity, these MCAs share the same negative reactivity profile described above for MCA 2F3 . Data from experiments using control or 0.02% EDTA-treated confluent cell monolayers of D-54 MG as antibody absorbents showed that the antigens detected are present in the extracellular matrix material remaining following cell removal. The data presented here establish that these highly restrictive anti-human glioma cell line MCAs are expressed in primary human gliomas; that the markers defined are developmental in nature, in that they are expressed by human fetal tissue, but not by adult tissue; and that in conjunction with previously characterized specificities, these markers of antigenic heterogeneity will be valuable in model system studies of therapeutic response heterogeneity.
C J Wikstrand, S H Bigner, D D Bigner

1581 related Products with: Characterization of three restricted specificity monoclonal antibodies raised against the human glioma cell line D-54 MG.

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