Abstract: The present invention is directed to an isolated and purified cyclic peptide of from 5 to about 13 residues modeled after a portion of the CS1 peptide. A peptide of this invention preferably has the amino acid residue sequence of SEQ ID NO:2-14 or 16-42. The present invention is further directed to a process of selectively inhibiting the binding of &agr;4&bgr;1 integrin to a protein such as VCAM-1, fibronectin or invasin. In accordance with that process, a cell that expresses &agr;4&bgr;1 integrin is exposed to that protein in the presence of an effective inhibiting amount of such a peptide. The present invention is still further directed to a pharmaceutical composition containing a physiologically acceptable carrier and a cyclic peptide of the invention.

Abstract: The invention provides heterobifunctional cross-linking reagents and methods of using the cross-linking reagents. The cross-linking reagents of the invention combine a nucleophilic hydrazide residue with an electrophilic maleimide residue allowing coupling of aldehydes to free thiols. In the methods of the invention, human immunodeficiency virus (HIV) infected cells can be detected using conjugates that include CD4 molecules conjugated to detectable markers via the disclosed cross-linking reagents.

Abstract: A method for the inhibition of the binding of &agr;4&bgr;1 integrin to its receptors, for example VCAM-1 (vascular cell adhesion molecule-1) and fibronectin; compounds that inhibit this binding; pharmaceutically active compositions thereof; and the use of the compounds either as above, or in formulations for the control or prevention of diseases states in which &agr;4&bgr;1 is involved.

Abstract: A method for the inhibition of the binding of &agr;4&bgr;1 integrin to its receptors, for example VCAM-1 (vascular cell adhesion molecule-1) and fibronectin; compounds that inhibit this binding; pharmaceutically active compositions comprising such compounds; and the use of such compounds either as above, or in formulations for the control or prevention of diseases states in which &agr;4&bgr;1 is involved.

Abstract: The invention provides heterobifunctional cross-linking reagents and methods of using the cross-linking reagents. The cross-linking reagents of the invention combine a nucleophilic hydrazide residue with an electrophilic maleimide residue, allowing coupling of aldehydes to free thiols. In the methods of the invention, human immunodeficiency virus (HIV) infected cells can be detected using conjugates that include CD4 molecules conjugated to detectable markers via the disclosed cross-linking reagents.

Abstract: A method for the inhibition of the binding of .alpha..sub.4 .beta..sub.1 integrin to its receptors, for example VCAM-1 (vascular cell adhesion molecule-1) and fibronectin; compounds that inhibit this binding; pharmaceutically active compositions comprising such compounds; and the use of such compounds either as above, or in formulations for the control or prevention of diseases states in which .alpha..sub.4 .beta..sub.1 is involved.

Abstract: The present invention is directed to an isolated and purified cyclic peptide of from 5 to about 13 residues modeled after a portion of the CS1 peptide. A peptide of this invention preferably has the amino acid residue sequence of SEQ ID NO:2-14 or 16-42. The present invention is further directed to a process of selectively inhibiting the binding of .alpha..sub.4 .beta..sub.1 integrin to a protein such as VCAM-1, fibronectin or invasin. In accordance with that process, a cell that expresses .alpha..sub.4 .beta..sub.1 integrin is exposed to that protein in the presence of an effective inhibiting amount of such a peptide. The present invention is still further directed to a pharmaceutical composition containing a physiologically acceptable carrier and a cyclic peptide of the invention.

Abstract: The invention provides heterobifunctional cross-linking reagents and methods of using the cross-linking reagents. The cross-linking reagents of the invention combine a nucleophilic hydrazide residue with an electrophilic maleimide residue, allowing coupling of aldehydes to free thiols. In the methods of the invention, human immunodeficiency virus (HIV) infected cells can be detected using conjugates that include CD4 molecules conjugated to detectable markers via the disclosed cross-linking reagents.

Abstract: The present invention provides compounds having structure (II), and the pharmaceutically acceptable salts, esters, amides and prodrugs thereof.

Abstract: The invention provides heterobifunctional cross-linking reagents and methods of using the cross-linking reagents. The cross-linking reagents of the invention combine a nucleophilic hydrazide residue with an electrophilic maleimide residue, allowing coupling of aldehydes to free thiols. In the methods of the invention, human immunodeficiency virus (HIV) infected cells can be detected using conjugates that include CD4 molecules conjugated to detectable markers via the disclosed cross-linking reagents.

Abstract: A process of preparing an alkali metal salt of a hydrophobic sulfonamide is provided. The process includes the step of dissolving a free sulfonamide in an organic solvent in the presence of a saturated alkali metal salt solution and recovering the formed sulfonamide salt from the organic phase.

Abstract: The present invention provides conjugates of mitomycin C or derivatives thereof and oligonucleotides. A conjugate of the present invention corresponds to formula I, below: ##STR1## where R is H, CH.sub.3, or C(O)SCH.sub.3, R' is O or NH, m is an integer from 1 to 10 and Ogn is an oligonucleotide. Pharmaceutical compositions and methods of using such conjugates to inhibit gene product expression are also provided.

Abstract: A process of preparing mannosylated alcohols or phenols in high chemical yield and purity using tetra-O-pivaloylmannosylfluoride and a Lewis acid catalyst.

Abstract: This invention relates to compounds that inhibit the binding of E-selectin or P-selectin to sialyl-Lewis.sup.x or sialyl-Lewis.sup.a presented on a cell surface having the general structure: ##STR1## This invention also relates to methods of inhibiting the binding of E-selectin or P-selectin to sialyl-Lewis.sup.x or sialyl-Lewis.sup.a presented on a cell surface using said compounds and to pharmaceutically active compositions comprising compounds that inhibit the binding of E-selectin to sialyl-Lewis.sup.x and to methods of treatment of septic shock, ARDS, Crohn's disease, chronic inflammatory diseases, such as psoriasis and rheumatoid arthritis, and reperfusion injuries that occurs following heart attacks, strokes and organ transplants and to the treatment of cancer.

Abstract: The invention provides heterobifunctional cross-linking reagents and methods of using the cross-linking reagents. The cross-linking reagents of the invention combine a nucleophilic hydrazide residue with an electrophilic maleimide residue, allowing coupling of aldehydes to free thiols. In the methods of the invention, human immunodeficiency virus (HIV) infected cells can be detected using conjugates that include CD4 molecules conjugated to detectable markers via the disclosed cross-linking reagents.

Abstract: The present invention is directed to an isolated and purified peptide comprising the LDV domain of the CSI peptide sequence or single amino acid substitutent analog thereof. A preferred peptide has the amino acid residue sequences shown in SEQ ID NOs:8-14, 17-23, 25, 28, and 51. The present invention is further directed to a process of inhibiting the binding of .alpha..sub.4 .beta..sub.1 integrin to a protein such as VCAM-1 or fibronectin comprising exposing a cell that expresses .alpha..sub.4 .beta..sub.1 integrin to the protein in the presence of an effective inhibiting amount of such a peptide. The present invention is still further directed to a pharmaceutical composition comprising a peptide of SEQ ID NO:8-102.

Abstract: This invention relates to compounds that inhibit the binding of E-selectin and/or P-selectin to sialyl-Lewis.sup.x or sialyl-Lewis.sup.a presented on a cell surface having the general structure ##STR1## wherein X is selected from the group consisting of --(CH.sub.2).sub.n CO.sub.2 H, --O(CH.sub.2).sub.m CO.sub.2 H, --(CH.sub.2).sub.n O(CH.sub.2).sub.m CO.sub.2 H, --CONH(CH.sub.2).sub.m CO.sub.2 H, --CH(OZ)(CO.sub.2 H), --CH(Z)(CO.sub.2 H), --(CH.sub.2).sub.n SO.sub.3 H, --(CH.sub.2).sub.n PO.sub.3 D.sub.1 D.sub.2, --NH(CH.sub.2).sub.m CO.sub.2 H, --CONH(CHR.sub.6)CO.sub.2 H, (1-H-tetrazolyl-5-alkyl-), and --OH;R.sub.1 and R.sub.2 are independently selected from the group consisting of hydrogen, alkyl, halogen, --OZ, --NO.sub.2, --NH.sub.2 and --NHZ;R.sub.3 is selected from the group consisting of hydrogen, halogen, alkyl, --OZ and --NHZ;R.sub.4 is selected from the group consisting of hydrogen, halogen, alkyl, hydroxyl, hydroxyl-O-sulfate and --OZ;R.sub.

Abstract: 5,6-Dehydronorketamine and derivatives retaining the .alpha.,.beta.-unsaturated carbonyl are disclosed. These end other Michael or Michael-type acceptors and adducts are shown to influence the replication, differentiation or maturation of blood cells, especially platelet progenitor cells. Accordingly, these compounds are used for treatment of thrombocytopenia.

Abstract: The invention is from the field of heterobifunctional cross-linking reagents. More particularly, the invention concerns cross-linking reagents which combine a nucleophilic hydrazide residue with an electrophilic maleimide residue, thereby allowing coupling of aldehydes to free thiols.

Abstract: 5,6-Dehydronorketamine and derivatives retaining the .alpha.,.beta.-unsaturated carbonyl are disclosed. These and other Michael or Michael-type acceptors and adducts are shown to influence the replication, differentiation or maturation of blood cells, especially platelet progenitor cells. Accordingly, these compounds are used for treatment of thrombocytopenia.