摘要:
Methods are provided for treating cancer, comprising administering (1) a farnesyl protein transferase inhibitor in conjunction with (2) an additional Ras signaling pathway inhibitor to induce cancer cell death and tumor regression.
摘要:
This application covers a novel PEGylated interferon and a novel crystalline form of interferon which are useful, inter alia, for detailed structural analysis of interferon as well as treatment and prevention of viral infections and hyperproliferative diseases such as leukemia.
摘要:
A method and pharmaceutical composition for the enhancement of transfer of a therapeutic agent to a cell wherein the therapeutic agent is formulated in a buffer comprising a compound of Formula I: wherein: n is an integer from 2-8; X1 is a cholic acid group or deoxycholic acid group; and X2 and X3 are each independently selected from the group consisting of a cholic acid group, a deoxycholic acid group, and a saccharide group, wherein the saccharide group is selected from the group consisting of pentose monosaccharide groups, hexose monosaccharide groups, pentose-pentose disaccharide groups, hexose-hexose disaccharide groups, pentose-hexose disaccharide groups, and hexose-pentose disaccharide groups; and wherein at least one of X2 and X3 is a saccharide group.
摘要:
This invention provides methods and compositions for enhancing transfer of an agent into a cell. The agents can include polypeptides, polynucleotides such as genes and antisense nucleic acids, and other molecules. In some embodiments, the agents are modulating agents that can modulate a cellular activity or function when introduced into the cell. The methods and compositions are useful for introducing agents into individual cells, as well as cells that are present as a tissue or organ.
摘要:
1-N-(R-.beta.-amino-.alpha.-hydroxypropionyl) gentamicin B, 1-N-(R-.gamma.-amino-.alpha.-hydroxybutyryl) gentamicin B, 1-N-(R-.delta.-amino-.alpha.-hydroxyvaleryl) gentamicin B and the corresponding diastereoisomers derived from the respective S-aminohydroxy acids and the acid addition salts thereof exhibit substantial antibacterial activity, especially against strains of bacteria which are resistant to gentamicin B and acid addition salts thereof.
摘要:
A method and pharmaceutical composition for the enhancement of transfer of a therapeutic agent to a cell wherein the therapeutic agent is formulated in a buffer comprising a compound of Formula I: wherein: n is an integer from 2-8; X1 is a cholic acid group or deoxycholic acid group; and X2 and X3 are each independently selected from the group consisting of a cholic acid group, a deoxycholic acid group, and a saccharide group, wherein the saccharide group is selected from the group consisting of pentose monosaccharide groups, hexose monosaccharide groups, pentose-pentose disaccharide groups, hexose-hexose disaccharide groups, pentose-hexose disaccharide groups, and hexose-pentose disaccharide groups; and wherein at least one of X2 and X3 is a saccharide group.
摘要:
A method of purifying a polypeptide having a physiological activity such as one having interferon activities from a culture mixture of a microorganism obtained by a recombinant DNA technique and capable of producing the polypeptide is disclosed. The method comprises subjecting the cultured cells to extraction and purification in the presence of a salt of zinc or copper and polyethyleneimine thereby inhibiting decomposition and denaturation of the polypeptide. The extracted polypeptide can be further purified by column chromatographies using a column containing an anion exchange resin, column containing a cation exchange resin and column containing a gel filtration resin.
摘要:
Selective blocking of some amino groups in a polyamino organic compound having at least one pair of available neighboring hydroxyl and amino groups is effected by first preparing in situ transition metal salt complexes of available neighboring amino and hydroxyl group pairs in said polyamino organic compound, followed by introduction of blocking groups on the non-complexed amino groups and, finally, removing the transition metal cations from the selectively N-blocked polyamino organic compound complex to obtain a polyamino organic compound having selectively blocked amino groups.This process is particularly valuable when carrying out aminocyclitol-aminoglycoside transformations utilizing transition metal salt complexes of cupric acetate, nickel (II) acetate, cobalt (II) acetate or mixtures thereof.