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Albumin-bound paclitaxel (brand name Abraxane, also called nab-paclitaxel) is an alternative formulation where paclitaxel is bound to albumin nanoparticles. Much of the clinical toxicity of paclitaxel is associated with the solvent Cremophor EL in which it is dissolved for delivery.
Protein-bound paclitaxel, also known as nanoparticle albumin–bound paclitaxel or nab-paclitaxel, is an injectable formulation of paclitaxel used to treat breast cancer, lung cancer and pancreatic cancer, among others. Paclitaxel kills cancer cells by preventing the normal breakdown of microtubules during cell division.
Nanoparticle albumin-bound technology utilizes the protein albumin as a carrier for hydrophobic chemotherapy drugs through noncovalent binding. Because albumin is already a natural carrier of hydrophobic particles and is able to transcytose molecules bound to itself, albumin composed nanoparticles have become an effective strategy for the ...
Paclitaxel total synthesis in organic chemistry is a major ongoing research effort in the total synthesis of paclitaxel (Taxol). [1] This diterpenoid is an important drug in the treatment of cancer but, also expensive because the compound is harvested from a scarce resource, namely the Pacific yew ( Taxus brevifolia ).
The structure of paclitaxel, a widely used mitotic inhibitor.. A mitotic inhibitor, microtubule inhibitor, or tubulin inhibitor, is a drug that inhibits mitosis, or cell division, and is used in treating cancer, gout, and nail fungus.
Once injected into the patient's body, the albumin nanoparticles can cross the BBB more easily, bind to the proteins and penetrate glioma cells, and then release the contained drugs. This nanoparticle formulation enhances tumor-targeting delivery efficiency and improves the solubility issue of hydrophobic drugs. [ 18 ]
The bound portion may act as a reservoir or depot from which the drug is slowly released as the unbound form. Since the unbound form is being metabolized and/or excreted from the body, the bound fraction will be released in order to maintain equilibrium. Since albumin is alkalotic, acidic and neutral drugs will primarily bind to albumin.
Simple blood tests are also available for dose optimization of methotrexate, [32] 5-FU, paclitaxel, and docetaxel. [33] [34] The serum albumin level immediately prior to chemotherapy administration is an independent prognostic predictor of survival in various cancer types. [35]