Abstract:
Porphyrazines capable of localizing in a tumor of a mammal are disclosed. The porphyrazines are used in methods of imaging a tumor and in methods of treating tumors, either alone or in combination with a chemotherapeutic agent and/or radiation.
Abstract:
Disclosed are glucose-sensitive nanoparticles which includes a phenylboronic acid derivative and a biocompatible polymer, and is prepared as an amphiphilic conjugate having chemical binding between the phenylboronic acid derivative and the biocompatible polymer. The use of the composition can effectively collect glucose in the cancer tissue, thereby simultaneously performing diagnosis and therapy of cancer.
Abstract:
A compound in the form of a metallized tetrapyrollic photosensitizer linked to a fluorescent dye where the photosensitizer (PS), is linked by a structure that does not have detrimental radiation emittance or absorbing characteristics, to a fluorophore, usually a cyanine dye (CD). The photosensitizer in accordance the invention is a metallized analog of porphyrins, chlorins, purpurinimides, bacterio pupurinimides, phthalocyanines, expanded porphyrins, benzoporphyrin derivatives and purpurins. The fluorophore is usually a cyanine dye with variable substituents. And, A method for determining effectiveness of PDT by comparing proportion of STAT-3 monomer with crosslinked STAT-3 dimer after PDT where the relative proportion of STAT-3 monomer to crosslinked STAT-3 directly correlates to efficacy of the PDT.
Abstract:
Provided are a photosensitizer-metal nanoparticle charge complex and a composition for photodynamic therapy or diagnosis containing the same. The complex includes a metal nanoparticle, a photosensitizer charged with a first charge, and a linker bound to the metal nanoparticle and charged with a second charge having an opposite polarity to the first charge. During circulation in blood, the photosensitizer-metal nanoparticle charge complex is maintained in a complex type, and thus duration of a side effect of photosensitivity can be reduced. In a tumor tissue, the complex is specifically accumulated, but in a normal tissue, it is difficult for the complex to penetrate. Thus, the complex can selectively destroy the tumor tissue. Moreover, selective fluorescence in the tumor tissue can provide further improvement in accuracy of diagnosing a tumor using the complex.
Abstract:
The present invention provides a diagnostic reagent or assay for assessing the activity of a protease in vivo or in vitro and methods of detecting the presence of a cancerous or precancerous cell. The assays are comprised of two particles linked via an oligopeptide linkage that comprises a consensus sequence specific for the target protease. Cleavage of the sequence by the target protease can be detected visually or using various sensors, and the diagnostic results can be correlated with cancer prognosis.
Abstract:
A composition of matter comprising an amphiphilic star polymer, the star polymer comprising a crosslinked microgel core and 6 or more independent polymer arms covalently linked to the core, the 6 or more arms each comprising a hydrophilic polymer chain segment and a hydrophobic polymer chain segment; wherein each individual metal selected from the group consisting of beryllium, magnesium, calcium, strontium, barium, radium, aluminum, gallium, indium, thallium, germanium, tin, lead, arsenic, antimony, bismuth, tellurium, polonium, and metals of Groups 3 to 12 of the Periodic Table has a concentration in the star polymer of greater than or equal to 0 parts per million and less than or equal to 100 parts per million.
Abstract:
The invention provides anionic water-soluble tetracyclic and pentacyclic bacteriochlorophyll derivatives (Bchls) containing at least one, preferably two or three, negatively charged groups and/or acidic groups that are converted to negatively charged groups at the physiological pH, preferably Bchls having a group COO , COS , SO3 , PO3 , COOH, COSH, SO3H, and/or PO3H2 bound through an ester or amide bond to one or more of the positions 17 , 13 , and 3 of the tetracyclic or pentacyclic Bchl molecule, for photodynamic therapy and diagnosis.
Abstract:
A particle includes a copolymer of lactic acid and glycolic acid, and at least one compound selected from silicon naphthalocyanine and derivatives of silicon naphthalocyanine, in which the particle has a particle size of 10 nm or more and less than 1000 nm.