摘要:
The invention is directed to phosphoramidite derivatives of macrocycles, such as porphyrins and expanded porphyrins, including sapphyrins and texaphyrins. The phosphoramidite derivatives are useful as intermediates in the preparation of macrocycle-oligonucleotide conjugates.
摘要:
The invention is directed to a method of incorporating expanded porphyrins, and particularly of incorporating a sapphyrin or a texaphyrin, before, during, or after chemical synthesis of an oligomer to form an expanded porphyrin-oligonucleotide conjugate, and particularly a sapphyrin- or texaphyrin-oligonucleotide conjugate. This method includes reacting derivatized nucleotides and a sapphyrin or a texaphyrin in a desired order in an automated or manual DNA synthesizer having a solid support to form a sapphyrin- or a texaphyrin-oligonucleotide conjugate.
摘要:
The invention is directed to a method of incorporating expanded porphyrins, and particularly of incorporating a sapphyrin or a texaphyrin, before, during, or after chemical synthesis of an oligomer to form an expanded porphyrin-oligonucleotide conjugate, and particularly a sapphyrin- or texaphyrin-oligonucleotide conjugate. This method includes reacting derivatized nucleotides and a sapphyrin or a texaphyrin in a desired order in an automated or manual DNA synthesizer having a solid support to form a sapphyrin- or a texaphyrin-oligonucleotide conjugate.
摘要:
Disclosed herein are novel zinc ionophores, zinc chelators and/or zinc complexes with enhanced aqueous solubility. Methods of treating cancer using at least one zinc ionophore and/or zinc chelator are also disclosed. Also disclosed herein are compositions and methods for treating cancer with combination therapy using at least one texaphyrin metal complex and at least one zinc ionophore or the respective pharmaceutically acceptable derivatives or salts thereof.
摘要:
Compositions comprising motexafin gadolinium, as well as methods for using these compositions in the treatment of brain metastases, are described herein.
摘要:
Disclosed herein are novel zinc ionophores, zinc chelators and/or zinc complexes with enhanced aqueous solubility. Methods of treating cancer using at least one zinc ionophore and/or zinc chelator are also disclosed. Also disclosed herein are compositions and methods for treating cancer with combination therapy using at least one texaphyrin metal complex and at least one zinc ionophore or the respective pharmaceutically acceptable derivatives or salts thereof.
摘要:
Compositions having a texaphyrin-lipophilic molecule conjugate loaded into a biological vesicle and methods for imaging, diagnosis and treatment using the loaded vesicle are provided. For example, liposomes or red blood cells loaded with a paramagnetic texaphyrin-lipophilic molecule conjugate have utility as a blood pool contrast agent, facilitating the enhancement of normal tissues, magnetic resonance angiography, and marking areas of damaged endothelium by their egress through fenestrations or damaged portions of the blood vascular system. Liposomes or cells loaded with a photosensitive texaphyrin-lipophilic molecule conjugate can be photolysed, allowing for a photodynamic therapy effect at the site of lysis. Availability of red blood cells loaded with a photosensitive texaphyrin-lipophilic molecule conjugate provides a method for delivering a photodynamic therapeutic agent to a desired site with a high concentration of oxygen. By presenting the agent in this way, it is expected that a patient will experience less toxicity.
摘要:
The invention is directed to a particular class of metal complexes, specifically certain texaphyrin metal complexes, which both hydrolyze and photocleave RNA, and which also both hydrolyze RNA and photocleave DNA. In one embodiment, the present invention is directed to a method for both hydrolyzing and photocleaving a polymer of ribonucleic acid, the method comprising the steps of contacting the polymer of ribonucleic acid with a texaphyrin metal complex exhibiting catalytic activity for both hydrolysis and photocleavage of ribonucleic acid polymers, incubating the polymer and the metal complex under conditions and for a time sufficient to hydrolyze the phosphate ester bond of the polymer, and exposing the texaphyrin metal complex to light for a time sufficient to photocleave the polymer. In another embodiment of the present invention, the invention is directed to a method for both hydrolyzing a polymer of ribonucleic acid and photocleaving a polymer of deoxyribonucleic acid, the method comprising the steps of contacting a mixture of the ribonucleic acid polymer and the deoxyribonucleic acid polymer with a texaphyrin metal complex exhibiting catalytic activity for both hydrolysis of ribonucleic acid polymers and photocleavage of deoxyribonucleic acid polymers, incubating the polymer mixture and the metal complex under conditions and for a time sufficient to hydrolyze the phosphate ester bond of the ribonucleic acid polymer, and exposing the texaphyrin metal complex to light for a time sufficient to photocleave the deoxyribonucleic acid polymer.
摘要:
Disclosed herein are novel zinc ionophores, zinc chelators and/or zinc complexes with enhanced aqueous solubility. Methods of treating cancer using at least one zinc ionophore and/or zinc chelator are also disclosed. Also disclosed herein are compositions and methods for treating cancer with combination therapy using at least one texaphyrin metal complex and at least one zinc ionophore or the respective pharmaceutically acceptable derivatives or salts thereof.