摘要:
The invention relates to assays for determining breast cancer or melanoma. It has been found that the accuracy of such assays can be improved by assaying samples for three or more known tumor rejection antigen precursors. For breast cancer, the tumor rejection antigen precursors known as SCP-1, NY-ESO-1, and SSX-2 are assayed. For melanoma, SSX-2, NY-ESO-1, and MAGE-3 are assayed. Additional known tumor rejection antigen precursors can also be determined to confirm the assays. It is preferred to carry these out via polymerase chain reactions.
摘要:
The invention describes an improved method for making monosialoganglioside GM3 and its intermediates. Following reaction of a neuraminic acid donor and a lactose acceptor in the presence of an acid catalyst, the .alpha. and .beta. isomers of GM3 are formed. The .alpha. isomer is converted to a lactone, via action of a ring forming basic catalyst, which is then separable from the .beta. isomer. The lactone is then treated with a basic catalyst in the presence of an alcohol, to form GM3 or a GM3 intermediate.
摘要:
Cell surface gangliosides are presumed to play a role in cell growth and differentiation. Using monoclonal antibodies directed against G.sub.D3, a disialoganglioside expressed predominantly by cells of neuroectodermal origin, we have found that G.sub.D3 is expressed by a subpopulation of cells of the immune system including: a) fetal thymocytes in subcortical regions and near vessels, 2) lymph node lymphocytes in interfollicular areas and near vessels, and 3) a small subset of T cells in the peripheral blood. Mouse monoclonal antibodies (two IgGs, one IgM and F(ab').sub.2 fragments) reacting with G.sub.D3 were found to stimulate proliferation of T cells derived from peripheral blood. Proliferation induced by binding to G.sub.D3 could be augmented by exogenous IL-2, PMA, PHA or Protein A.
摘要:
Four monoclonal antibodies are found which selectively identify prostate cancer. These monoclonals are therefore useful in diagnosis, differential diagnosis and treatment of prostate cancer.
摘要:
Antigenic profiles of renal carcinoma specimans developed with panels of monoclonal antibodies derived from several different tissues serve as useful clinical indicators for cancer type, cancer subset as well as histiogenesis and prognosis indicators.
摘要:
Human TNF(LuKII) having a specific activity of at least 1.5.times.10.sup.5 units per milligram of total protein is produced by contacting a TNF-containing protein composition, which has been harvested from human cell lines of hematopoietic origin or recombinant origin, in separate adsorption stages with glass beads, lentil lectin bound to Sepharose, and procion red agarose, thereby selectively to adsorb TNF in each stage, while leaving some impurities unadsorbed, each contact stage being followed by contact of the adsorbent with an eluant thereby to obtain a solution of more highly purified TNF after each stage. The purified human TNF(LuKII) is used to produce monoclonal antibodies against TNF(LuKII) and such antibodies can be used to assay samples for the presence of TNF(LuKII).
摘要:
A panel of monoclonal antibodies produced from normal human lung fibroblasts and human lung tumors as immunogen is used to diagnose the presence of lung tumors and differentiate between those which are benign and those which are cancerous.
摘要:
Human monoclonal antibodies (HmAbs) capable of reacting with cell surface antigens and intracellular components are disclosed. It has been found that HmAbs Ev248, Ch-5, Ch-13, Te-39, Hu44, Ge-1, Gr-431, Gr169 and Sp909 may be used to detect these antigens in various cells. By means of these HmAbs malignant cells may be determined. This information may be used to screen metastasized tumors and primary tumors for tissue source and greatly affects the management of these cancers.
摘要:
The preparation and use of monoclonal antibodies to human renal tumor cells is described. The monoclonal antibodies bind to glycoproteins of 160Kd, 120Kd and 115Kd, a glycolipid, a HLA heavy chain, group A blood and group B blood antigens.
摘要:
Mouse monoclonal antibody AbR.sub.24 (Dippold et al., Proc. Natl. Acad. Sci. 77:6114-6118, 1980) has a high degree of specificity for human melanoma cells when tested on viable cultured cells using the PA-MHA serological assay. The antigen detected by this antibody has been isolated from melanoma cells and shown to be G.sub.D3 ganglioside by compositional and partial structural analysis and by comparison with authentic G.sub.D3 by thin layer chromatography (TLC). AbR.sub.24 reacts with authentic G.sub.D3, but not with any other ganglioside tested. Using TLC and reactivity with AbR.sub.24, a wide range of cells and tissues was examined for the presence of G.sub.D3. A new serological assay, termed glycolipid-mediated immune adherence (GMIA), was devised for assaying the reactivity of AbR.sub.24 with gangliosides. Melanomas (cultured cells or tumor tissue) were shown to have T.sub.D3 and G.sub.M3 as major gangliosides. Other cells and tissues examined also contained G.sub.D3, but usually only in low amounts. Melanomas (and MOLT-4, a T-cell line) were characterized by a simplified ganglioside profile with G.sub.D3 and G.sub.M3 as major components. The apparent discrepancy between the ubiquitous presence of G.sub.D3 and the serological specificity of AbR.sub.24 for melanoma cells can be explained in terms of localization and concentration of G.sub.D3 in different cells.