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      Nanotechnology in Cancer Drug Delivery and Selective Targeting

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      ISRN Nanotechnology
      Hindawi Limited

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          Abstract

          Nanoparticles are rapidly being developed and trialed to overcome several limitations of traditional drug delivery systems and are coming up as a distinct therapeutics for cancer treatment. Conventional chemotherapeutics possess some serious side effects including damage of the immune system and other organs with rapidly proliferating cells due to nonspecific targeting, lack of solubility, and inability to enter the core of the tumors resulting in impaired treatment with reduced dose and with low survival rate. Nanotechnology has provided the opportunity to get direct access of the cancerous cells selectively with increased drug localization and cellular uptake. Nanoparticles can be programmed for recognizing the cancerous cells and giving selective and accurate drug delivery avoiding interaction with the healthy cells. This review focuses on cell recognizing ability of nanoparticles by various strategies having unique identifying properties that distinguish them from previous anticancer therapies. It also discusses specific drug delivery by nanoparticles inside the cells illustrating many successful researches and how nanoparticles remove the side effects of conventional therapies with tailored cancer treatment.

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          Most cited references78

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          Polymer conjugates as anticancer nanomedicines.

          The transfer of polymer-protein conjugates into routine clinical use, and the clinical development of polymer-anticancer-drug conjugates, both as single agents and as components of combination therapy, is establishing polymer therapeutics as one of the first classes of anticancer nanomedicines. There is growing optimism that ever more sophisticated polymer-based vectors will be a significant addition to the armoury currently used for cancer therapy.
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            Nanoparticle delivery of cancer drugs.

            Nanomedicine, the application of nanotechnology to medicine, enabled the development of nanoparticle therapeutic carriers. These drug carriers are passively targeted to tumors through the enhanced permeability and retention effect, so they are ideally suited for the delivery of chemotherapeutics in cancer treatment. Indeed, advances in nanomedicine have rapidly translated into clinical practice. To date, there are five clinically approved nanoparticle chemotherapeutics for cancer and many more under clinical investigation. In this review, we discuss the various nanoparticle drug delivery platforms and the important concepts involved in nanoparticle drug delivery. We also review the clinical data on the approved nanoparticle therapeutics as well as the nanotherapeutics under clinical investigation.
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              Nanomedicine: current status and future prospects.

              Applications of nanotechnology for treatment, diagnosis, monitoring, and control of biological systems has recently been referred to as "nanomedicine" by the National Institutes of Health. Research into the rational delivery and targeting of pharmaceutical, therapeutic, and diagnostic agents is at the forefront of projects in nanomedicine. These involve the identification of precise targets (cells and receptors) related to specific clinical conditions and choice of the appropriate nanocarriers to achieve the required responses while minimizing the side effects. Mononuclear phagocytes, dendritic cells, endothelial cells, and cancers (tumor cells, as well as tumor neovasculature) are key targets. Today, nanotechnology and nanoscience approaches to particle design and formulation are beginning to expand the market for many drugs and are forming the basis for a highly profitable niche within the industry, but some predicted benefits are hyped. This article will highlight rational approaches in design and surface engineering of nanoscale vehicles and entities for site-specific drug delivery and medical imaging after parenteral administration. Potential pitfalls or side effects associated with nanoparticles are also discussed.
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                Author and article information

                Journal
                ISRN Nanotechnology
                ISRN Nanotechnology
                Hindawi Limited
                2090-6072
                2014
                2014
                : 2014
                :
                : 1-12
                Article
                10.1155/2014/939378
                36742119-1523-4439-93c2-a5cb9b1ad516
                © 2014

                http://creativecommons.org/licenses/by/3.0/

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