Abstract: According to the present invention there is provided an antibody that specifically binds an epitope of a heparanase protein, the heparanase protein including an amino acid sequence as set forth in SEQ ID NO:2, provided that phenylalanine replaces tyrosine at position 246. The present invention also provides an antibody elicited by an epitope of a heparanase protein, the heparanase protein including an amino acid sequence as set forth in SEQ ID NO:2, provided that phenylalanine replaces tyrosine at position 246.

Abstract: Heparanase specific molecular probes which can be used for detection of the presence, absence or level of heparanase expression and methods of utilizing same are provided.

Abstract: A variety of heparanase specific molecular probes which can be used for research and medical applications including diagnosis and therapy. Specific applications include the use of a heparanase specific molecular probe for detection of the presence, absence or level of heparanase expression; the use of a heparanase specific molecular probe for therapy of a condition associated with expression of heparanase; the use of a heparanase specific molecular probe for quantification of heparanase in a body fluid; the use of a heparanase specific molecular probe for targeted drug delivery; and the use of a heparanase specific molecular probe as a therapeutic agent.

Abstract: A variety of heparanase specific molecular probes which can be used for research and medical applications including diagnosis and therapy. Specific applications include the use of a heparanase specific molecular probe for detection of the presence, absence or level of heparanase expression; the use of a heparanase specific molecular probe for therapy of a condition associated with expression of heparanase; the use of a heparanase specific molecular probe for quantification of heparanase in a body fluid; the use of a heparanase specific molecular probe for targeted drug delivery; and the use of a heparanase specific molecular probe as a therapeutic agent.

Abstract: The present invention is directed to a peptide or polypeptide comprising an Fv molecule, a construct thereof, a fragment of either, or a construct of a fragment having enhanced binding characteristics so as to bind selectively and/or specifically to a target cell in favor of other cells, wherein the binding selectivity or specificity is primarily determined by a first hypervariable region, and wherein the Fv is a scFv or a dsFv, and optionally having one or more tags. The enhanced binding is directed to a substantially exposed and/or over-expressed binding site on or in a target comprising a cell in favor of other cells on or in which the binding site is not substantially available and/or expressed. The invention is further directed to a method for isolating such peptides and polypeptides from a phage display library and to the nucleic acid molecules encoding them.

Abstract: Specific anti-heparanase antibodies which bind specifically to heparanase having sequence homology to human heparanase, which can be used to treat and diagnose conditions associated with heparanase catalytic activity, for purification of heparanase, and for drug development in heparanase associated conditions are disclosed.

Abstract: The present invention is directed to novel peptides and polypeptides that specifically bind to target cells and may have anti-cancer activity, especially blood-related cancers. The present invention includes a peptide or polypeptide comprising an Fv molecule, having a heavy variable chain comprising CDR3, CDR2 and CDR1 regions comprising the amino acid sequences SEQ ID NOS:8, 115 and 114, respectively.

Abstract: A variety of heparanase specific molecular probes which can be used for research and medical applications including diagnosis and therapy. Specific applications include the use of a heparanase specific molecular probe for detection of the presence, absence or level of heparanase expression; the use of a heparanase specific molecular probe for therapy of a condition associated with expression of heparanase; the use of a heparanase specific molecular probe for quantification of heparanase in a body fluid; the use of a heparanase specific molecular probe for targeted drug delivery; and the use of a heparanase specific molecular probe as a therapeutic agent.

Abstract: A method of treating a condition associated with heparanase expression by administering a heparanase activity neutralizing monoclonal anti-heparanase antibody, the monoclonal anti-heparanase antibody being for neutralizing heparanase catalytic activity.

Abstract: The present invention provides antibodies that bind an epitope of PSGL-1 comprising the motif D-X-Y-D, wherein X represents any amino acid or the covalent linkage between D and Y, and Y is sulfated, which antibody can be complexed with one or more copies of an agent. The antibodies of the invention can be used in a method of inducing antibody-dependent cell cytotoxicity and/or stimulating natural killer (NK) cells or T cells. In addition, by administering these antibodies to a patient in need thereof, a method of inducing cell death is provided. A method of preventing infection by a virus (e.g., HIV) by administering to a patient in need thereof an antibody of the present invention is also provided. The, present invention also provides a method of introducing an agent into a cell that expresses sulfated PSGL-1 by coupling or complexing an agent to an antibody of the present invention and administering the complex to the cell.

Abstract: Heparanase specific molecular probes which can be used for detection of the presence, absence or level of heparanase expression and methods of utilizing same are provided.

Abstract: Specific anti-heparanase antibodies which bind specifically to heparanase having sequence homology to human heparanase, which can be used to treat and diagnose conditions associated with heparanase catalytic activity, for purification of heparanase, and for drug development in heparanase associated conditions are disclosed.

Abstract: Specific anti-heparanase antibodies which bind specifically to heparanase having sequence homology to human heparanase, which can be used to treat and diagnose conditions associated with heparanase catalytic activity, for purification of heparanase, and for drug development in heparanase associated conditions are disclosed.

Abstract: A variety of heparanase specific molecular probes which can be used for research and medical applications including diagnosis and therapy. Specific applications include the use of a heparanase specific molecular probe for detection of the presence, absence or level of heparanase expression; the use of a heparanase specific molecular probe for therapy of a condition associated with expression of heparanase; the use of a heparanase specific molecular probe for quantification of heparanase in a body fluid; the use of a heparanase specific molecular probe for targeted drug delivery; and the use of a heparanase specific molecular probe as a therapeutic agent.

Abstract: The present invention is directed to a peptide or polypeptide comprising an Fv molecule, a construct thereof, a fragment of either, or a construct of a fragment having enhanced binding characteristics so as to bind selectively and/or specifically to a target cell in favor of other cells, wherein the binding selectivity or specificity is primarily determined by a first hypervariable region, and wherein the Fv is a scFv or a dsFv, and optionally having one or more tags. The enhanced binding is directed to a substantially exposed and/or over-expressed binding site on or in a target comprising a cell in favor of other cells on or in which the binding site is not substantially available and/or expressed. The invention is further directed to a method for isolating such peptides and polypeptides from a phage display library and to the nucleic acid molecules encoding them.

Abstract: A variety of heparanase specific molecular probes which can be used for research and medical applications including diagnosis and therapy. Specific applications include the use of a heparanase specific molecular probe for detection of the presence, absence or level of heparanase expression; the use of a heparanase specific molecular probe for therapy of a condition associated with expression of heparanase; the use of a heparanase specific molecular probe for quantification of heparanase in a body fluid; the use of a heparanase specific molecular probe for targeted drug delivery; and the use of a heparanase specific molecular probe as a therapeutic agent.

Abstract: The present invention provides epitopes present on cancer cells and important in physiological phenomena such as cell rolling, metastasis, and inflammation. Therapeutic and diagnostic methods and compositions using antibodies capable of binding to the epitopes are provided. Methods and compositions according to the present invention can be used in diagnosis of and therapy for such diseases as cancer, including tumor growth and metastasis, leukemia, auto-immune disease, and inflammatory disease.

Abstract: The present invention provides epitopes present on cancer cells and important in physiological phenomena such as cell rolling, metastasis, and inflammation. Therapeutic and diagnostic methods and compositions using antibodies capable of binding to the epitopes are provided.

Abstract: The present invention provides epitopes present on cancer cells and important in physiological phenomena such as cell rolling, metastasis, and inflammation. Therapeutic and diagnostic methods and compositions using antibodies capable of binding to the epitopes are provided.

Abstract: A method of treating a condition associated with heparanase expression by administering a heparanase activity neutralizing monoclonal anti-heparanase antibody, the monoclonal anti-heparanase antibody being for neutralizing heparanase catalytic activity.