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Paramjot,Nanomedicine Research Laboratory | Khan N.M.,Nanomedicine Research Laboratory | Kapahi H.,Nanomedicine Research Laboratory | Kumar S.,Polymer Chemistry and Technology Research Laboratory | And 3 more authors.
Journal of Drug Targeting | Year: 2015

Polymers have been utilized to deliver the drug to targeted site in controlled manner, achieving the high-therapeutic efficacy. Polymeric drug conjugates having variable ligands as attachments have been proved to be biodegradable, stimuli sensitive and targeted systems. Numerous polymeric drug conjugates having linkers degraded by acidity or intracellular enzymes or sensitive to over expressed groups of diseased organ/tissue have been synthesized during last decade to develop targeted delivery systems. Most of these organs have number of receptors attached with different cells such as Kupffer cells of liver have mannose-binding receptors while hepatocytes have asialoglycoprotein receptors on their surface which mainly bind with the galactose derivatives. Such ligands can be used for achieving high targeting and intracellular delivery of the drug. This review presents detailed aspects of receptors found in different cells of specific organ and ligands with binding efficiency to these specific receptors. This review highlights the need of further studies on organ-specific polymer-drug conjugates by providing detailed account of polymeric conjugates synthesized till date having organ-specific targeting. © 2015 Informa UK Ltd. Source


Ahmad M.Z.,Najran University | Akhter S.,Najran University | Mohsin N.,Najran University | Abdel-Wahab B.A.,Najran University | And 5 more authors.
Current Drug Discovery Technologies | Year: 2014

Curcumin (CUR) is a yellow-coloured polyphenolic compound obtained from the rhizomes of Curcuma longa. In-depth pharmacological screening of curcumin has given the evidence that CUR persuades shielding and curative effects against various cancers, cardiovascular, wound healing effect and neuro disorders etc owning to anti-oxidant, antiproliferative, anti-inflammatory, anti-angiogenic and antimicrobial activities. However, miserable bioavailability due to poor aqueous solubility limits the application of CUR in various ailments. Different methodologies including the nanoparticle technology have been reported for the bioavailability enhancement of CUR. Nanoparticles exhibit not only the improvement in the solubility of CUR and alike lipophilic molecules (resulted in improved bioavailability) but also giving the opportunity for the disease specific cellular and organ targeting. Improved bioavailability and disease based site specific delivery of CUR is more likely to bring it as a safe multifunctional medicine. © 2014 Bentham Science Publishers. Source

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