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Related Concept Videos

Site-Targeted Drug Delivery Systems: Polymeric Carriers01:24

Site-Targeted Drug Delivery Systems: Polymeric Carriers

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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Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
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.
Transducer Mechanism: Enzyme-Linked Receptors01:27

Transducer Mechanism: Enzyme-Linked Receptors

Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
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Drug Distribution: Tissue Binding01:21

Drug Distribution: Tissue Binding

Upon entering the systemic circulation, drugs can distribute into the interstitial and intracellular fluid of various tissue cells. This distribution is facilitated by the binding of drugs to different cellular components within tissues, which may lead to drug accumulation in specific areas. Drugs bound to tissue components serve as reservoirs that release free drugs back into the system, prolonging the drug's overall action. However, this accumulation can also result in local toxicity.
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Polymalic Acid-based Nano Biopolymers for Targeting of Multiple Tumor Markers: An Opportunity for Personalized Medicine?
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Targeting polymer therapeutics to bone.

Stewart A Low1, Jindřich Kopeček

  • 1Department of Bioengineering, University of Utah, Salt Lake City, UT 84112, USA.

Advanced Drug Delivery Reviews
|February 10, 2012
PubMed
Summary
This summary is machine-generated.

Aging populations face rising bone diseases like osteoporosis. Novel polymer therapeutics can target diseased bone, increasing drug efficacy and reducing side effects for better patient outcomes.

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Peptides from Phage Display Library Modulate Gene Expression in Mesenchymal Cells and Potentiate Osteogenesis in Unicortical Bone Defects

Published on: December 10, 2010

Area of Science:

  • Biomaterials Science
  • Drug Delivery
  • Musculoskeletal Health

Background:

  • The global aging population is experiencing a rise in musculoskeletal diseases, including osteoporosis and bone metastases.
  • Untreated bone diseases cause severe pain and mortality, particularly in cancer cases.
  • Current drug therapies are often limited by side effects, hindering clinical efficacy.

Purpose of the Study:

  • To explore the potential of bone-targeting moieties integrated with water-soluble polymers for enhanced drug delivery.
  • To investigate methods for increasing drug payload to diseased bone tissue while minimizing systemic side effects.
  • To establish the foundational understanding required for clinically relevant bone-targeted polymer therapeutics.

Main Methods:

  • Integration of bone targeting moieties with drug-carrying water-soluble polymers.
  • Investigation of bone targeting moiety interactions with bone tissue.
  • Development of controlled drug delivery systems utilizing polymer therapeutics.
  • Analysis of drug interactions within the bone microenvironment.

Main Results:

  • Demonstrated potential to increase drug payload delivery to diseased bone areas.
  • Showcased a strategy to decrease drug-related side effects.
  • Identified key areas for developing effective bone-targeted polymer therapeutics.

Conclusions:

  • Bone's unique inorganic matrix can be leveraged for targeted drug delivery.
  • Bone-targeted polymer therapeutics offer a promising approach to treat debilitating bone diseases.
  • Further research into moiety-bone interactions, controlled delivery, and drug synergy is crucial for clinical translation.