摘要:
The invention provides magnetic nanoparticles comprising a core, wherein the nanoparticles comprise at least one therapeutic agent linked to the core via a hydrazone linkage or via an oxime ether linkage, methods for making said nanoparticles, and methods for using said nanoparticles.
摘要:
The present invention provides compositions comprising amiloride amino acid and peptide conjugates. Efficient methods are also provided for administering the amiloride conjugates of the present invention for treating cancer or a central nervous system disease or disorder or for preventing or reducing ischemia-reperfusion injury. Further, kits are provided for the treatment of a central nervous system disease or disorder or for the prevention or reduction of ischemia-reperfusion injury using the amiloride conjugates of the present invention.
摘要:
Amine containing compounds and their use in the generation of cytofectin:polynucleotide complexes for transfection of cells, formulations, counterions, and reaction conditions for maximizing the transfection include using cationic amine compounds that have the general structure: ##STR1## wherein R.sub.4 and R.sub.5 are a pair of same or different lipoyl moieties selected from a group consisting of an alkyl, alkenyl, alkynyl, alkanoyl, alkenoyl, or alkynoyl groups and for R.sub.1, R.sub.2, and R.sub.3 at least two are hydroxylated, ether containing, or acyloxy containing alkyl, alkenyl, or alkynyl groups or at least one amine bonded halogen containing moiety selected from a group consisting of a halogenated alkyl, alkenyl, or alkynyl group or a mixture of at least one halogen containing moiety selected from a group consisting of a halogenated alkyl, alkenyl, or alkynyl group and at least one hydroxylated, ether containing, or acyloxy containing alkyl, alkenyl, or alkynyl group, and X.sup.- is an oxyanion or halide counterion or ##STR2## wherein a, b, or d are the same or different and are from 0-10, usually between 0 and 3, preferably 0 or 1; R.sub.4 and R.sub.5 are the same or different with each an alkyl group, an alkenyl group, an alkynyl group, or an alkyl, alkenyl, or alkynyl containing acyl group; R.sub.8, R.sub.9, or R.sub.10 are the same or different with each an alkyl, alkenyl, or alkynyl group or halogenated alkyl, alkenyl, or alkynyl group as long as one is halogen containing; and X.sup.- is an anion, usually an oxyanion or halide counterion.
摘要:
The invention provides nanoparticles, methods for making nanoparticles, and methods for using nanoparticles. An important attribute of a drug delivery system is its ability to allow for spatial and temporal regulated drug release, thereby minimizing side effects and improving therapeutic efficacy of conventional pharmaceuticals. Iron oxide nanoparticles (NPs), specifically Fe304 nanoparticles, possess many appropriate qualities that make them a viable choice for drug delivery.
摘要:
The invention provides nanoparticles, methods for making nanoparticles, and methods for using nanoparticles. An important attribute of a drug delivery system is its ability to allow for spatial and temporal regulated drug release, thereby minimizing side effects and improving therapeutic efficacy of conventional pharmaceuticals. Iron oxide nanoparticles (NPs), specifically Fe304 nanoparticles, possess many appropriate qualities that make them a viable choice for drug delivery.
摘要:
The present invention provides compositions comprising amiloride amino acid and peptide conjugates. Efficient methods are also provided for administering the compositions for treating cancer and for delivering an amiloride conjugate into cancer cells in a subject in need thereof.
摘要:
The present invention relates to compositions and methods for preventing oxidative injury to a cell. The compositions comprise a lipid formulation and a recombinant nucleic acid encoding an extracellular superoxide dismutase (EC-SOD), which upon transfection of a target cell is expressed by the cell and acts as an enzymatic antioxidant. The invention also provides for an isolated organ treated with the claimed composition or method.
摘要:
The present invention describes methods for introducing nucleic acids into a target cell using a transition metal enhancer. A mixture containing nucleic acid and a transition metal enhancer is exposed to cells. The nucleic acid is taken up into the interior of the cell with the aid of the transition metal enhancer. Since nucleic acids can encode a gene, the method can be used to replace a missing or defective gene in the cell. The method can also be used to deliver exogenous nucleic acids operatively coding for proteins that are secreted or released from target cells, thus resulting in a desired biological effect outside the cell. Alternatively, the methods of the present invention can be used to deliver exogenous nucleic acids into a target cell that are capable of regulating the expression of a predetermined endogenous gene. This can be accomplished by encoding the predetermined endogenous gene on the nucleic acid or by encoding the nucleic acid with a sequence that is the Watson-Crick complement of the mRNA corresponding to the endogenous gene.
摘要:
For use in transporting biologically active species into and through membrane barriers, a cationic amine compound is utilized that has the general structure: ##STR1## wherein R.sub.4 and R.sub.5 are a pair of same or different lipoyl moieties selected from a group consisting of an alkyl, alkenyl, alkynyl, alkanoyl, alkenoyl, or alkynoyl groups and for R.sub.1 R.sub.2, and R.sub.3 at least two are hydroxylated, ether containing, or acyloxy containing alkyl, alkenyl, or alkynyl groups or at least one amine bonded halogen containing moiety selected from a group consisting of a halogenated alkyl, alkenyl, or alkynyl group or a mixture of at least one halogen containing moiety selected from a group consisting of a halogenated alkyl, alkenyl, or alkynyl group and at least one hydroxylated, ether containing, or acyloxy containing alkyl, alkenyl, or alkynyl group, and X.sup.- is an anion.
摘要翻译:为了用于将生物活性物质输送到膜屏障中并通过膜屏障,使用具有以下一般结构的阳离子胺化合物:其中R 4和R 5是一对相同或不同的脂酰基部分,其选自烷基, 烯基,炔基,烷酰基,烯酰基或炔炔基,对于R 1 R 2,并且R 3至少两个被羟基化,含醚或含酰氧基的烷基,烯基或炔基或至少一个与胺键合的含卤素的部分, 由卤代烷基,烯基或炔基组成,或至少一种选自卤代烷基,烯基或炔基的含卤素部分和至少一个羟基化的,含醚的或含酰氧基的烷基的混合物, 烯基或炔基,X-是阴离子。
摘要:
A contrast marker for indicating a presence of a target cell in an environment comprises a fluorophore, an NMP, and a short spacer and a long spacer linking the fluorophore to the NMP. The short spacer holds the fluorophore at a quenching distance from the NMP and the long spacer holds the fluorophore at a fluorescence enhancing distance from the NMP. The short spacer is configured to be cleaved by a molecule characterizing the target cells.