Azo and diaza dericatives and uses thereof in phototherapy

A - Human Necessities – 61 – K

Patent

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Details

A61K 39/385 (2006.01) A61K 41/00 (2006.01) A61K 49/00 (2006.01) A61K 51/00 (2006.01) G01N 33/531 (2006.01) G01N 33/533 (2006.01) G01N 33/566 (2006.01)

Patent

CA 2326650

A composition comprising non-covalent carrier-hapten bioconjugates having the formula HM-----CM wherein HM is a hapten molecule whose molecular weight is generally, but not always, less than 1000 Daltons and is capable of performing specific functions; CM is a carrier molecule, whose molecular weight is generally, but not always, more than 1000 Daltons and is capable of transporting the hapten to a specific site; and the dashed line is a non- covalent bond between the carrier molecule and the hapten molecule. Preferably, the bioconjugates are formed from fluorescent dye haptens such as cyanine, indocyanine, squaraine, porphyrrins, Rose Bengal, and methylene blue dye and carrier molecules such as methylated serum albumin, polyarginine, polyaspartic acid, polyglutamic acid, cyclodextrin, and inulin. The bioconjugates are useful in diagnostic and therapeutic medical procedures because they are stable in vitro before being used and stable in vivo during and after use.

La présente invention concerne une composition comprenant des bioconjugués non covalents à haptène porteur représentés par la formule HM-----CM dans laquelle HM est une molécule haptène d'une masse moléculaire généralement, mais pas systématiquement, inférieure à 1.000 Da, et qui est capable de fonctions spécifiques. CM est une molécule porteuse dont la masse moléculaire est généralement, mais pas systématiquement, supérieure à 1.000 Da, et qui est capable de transporter le haptène jusqu'à un site spécifique. En outre, la ligne en pointillés est une liaison non covalente entre la molécule porteuse et la molécule haptène. De préférence, les bioconjugués sont formés à partir de haptènes de teinture fluorescente tels que la cyanine, l'indocyanine, la squaraine, les porphyrines, le Rose Bengale et le bleu de méthylène, et des molécules porteuses telles que l'albumine sérique méthylée, la polyarginine, l'acide polyaspartique, l'acide polyglutamique, la cyclodextrine et l'inuline. Ces bioconjugués conviennent particulièrement pour des procédures médicales de diagnostic et procédures médicales thérapeutiques car ils sont stables in vitro avant utilisation et in vivo pendant et après utilisation.

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