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Related Concept Videos

Modified-Release Drug Delivery Systems: Site-Targeted01:24

Modified-Release Drug Delivery Systems: Site-Targeted

Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.
Site-Targeted Drug Delivery Systems: Polymeric Carriers01:24

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Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...
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Modified-Release Drug Delivery Systems: Classification

Modified-release drug delivery systems improve drug efficacy and minimize side effects by controlling the rate and location of drug release. These systems fall into three categories: rate-programmed, stimuli-activated, and site-targeted.Rate-programmed systems release drugs at a predetermined rate, maintaining consistent therapeutic levels and reducing fluctuations that could lead to toxicity or subtherapeutic effects. These systems use polymeric matrices, reservoir-based designs, or osmotic...
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Modified-release drug delivery systems are designed to optimize the therapeutic effect of drugs by minimizing side effects, reducing the dosage required, and controlling drug release to align with pharmacokinetic and pharmacodynamic needs. The system depends on two key factors: the drug's release from the formulation and its movement through the body to the target site. Unlike conventional dosage forms, where absorption is the limiting step, the rate of drug release is the key determinant in...
Drug Delivery: Overview01:16

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The selection of a drug's delivery route depends upon its physicochemical properties, including lipid or water solubility and ionization, as well as the therapeutic requirement, such as immediate or sustained effect. These routes can be divided into three primary categories: enteral, parenteral, and topical.
Enteral delivery involves administering drugs directly through swallowing, sublingual placement, or buccal application. Orally administered drugs predominantly navigate the gastrointestinal...
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Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...

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Targeted Plasma Membrane Delivery of a Hydrophobic Cargo Encapsulated in a Liquid Crystal Nanoparticle Carrier
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Controlling subcellular delivery to optimize therapeutic effect.

Mohanad Mossalam1, Andrew S Dixon, Carol S Lim

  • 1Department of Pharmaceutics & Pharmaceutical Chemistry, College of Pharmacy, University of Utah, Salt Lake City, UT 84108, USA.

Therapeutic Delivery
|November 30, 2010
PubMed
Summary
This summary is machine-generated.

This study explores precise drug delivery to cellular organelles for enhanced disease therapy. Advanced methods enable targeting multiple organelles, improving drug efficacy and treatment outcomes.

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Area of Science:

  • Cell biology
  • Pharmacology
  • Biotechnology

Background:

  • Targeting specific cellular organelles is crucial for effective drug therapy.
  • Current drug delivery methods have limitations in reaching all subcellular compartments.

Purpose of the Study:

  • To review and discuss drug targeting strategies for various cellular organelles.
  • To explore novel technologies for sophisticated multi-organelle drug delivery.

Main Methods:

  • Chemical delivery methods (e.g., polymeric carriers).
  • Biological delivery methods (e.g., signal sequences).
  • Advanced systems like protein switches and virus-like particles for multi-targeting.

Main Results:

  • Successful unidirectional targeting to individual organelles has been demonstrated.
  • Newer technologies allow for simultaneous targeting of multiple organelles.
  • These advanced methods offer more sophisticated drug delivery approaches.

Conclusions:

  • Targeting specific organelles enhances drug therapy effectiveness.
  • Multi-organelle targeting strategies promise improved disease treatment.
  • Harnessing diverse targeting methods will advance drug delivery and therapeutic outcomes.