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Site-Directed Immobilization of Bone Morphogenetic Protein 2 to Solid Surfaces by Click Chemistry
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Development of Bone Targeting Drugs.

Molly Stapleton1,2, Kazuki Sawamoto3, Carlos J Alméciga-Díaz4

  • 1Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA. mstaple@udel.edu.

International Journal of Molecular Sciences
|June 24, 2017
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Summary

Developing targeted bone drugs improves skeletal disease treatment. This review explores current bone-targeting moieties, their effectiveness, and future directions for enhanced drug delivery and reduced toxicity.

Keywords:
bisphosphonatesbone targeting drugsmetabolic skeletal dysplasiananoparticlesosteoporosis

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Area of Science:

  • Skeletal biology and drug delivery systems.
  • Biomaterials and medicinal chemistry.

Background:

  • The skeletal system's structure and support are vital, but diseases affecting it, especially cartilage, are challenging to treat due to poor drug penetration.
  • Effective drug targeting enhances therapeutic efficacy and minimizes toxicity for skeletal disorders.

Purpose of the Study:

  • To review current advancements in bone-targeting moieties for drug delivery.
  • To analyze the efficacy and limitations of existing strategies.
  • To discuss future research directions for improved skeletal drug treatments.

Main Methods:

  • Review of scientific literature on bone-targeting drug design and delivery.
  • Analysis of targeting strategies utilizing hydroxyapatite affinity, synthetic, and biological components.
  • Evaluation of drug delivery for skeletal diseases like osteoporosis and osteoarthritis.

Main Results:

  • Bone-targeting moieties often leverage affinity for hydroxyapatite, a bone matrix component.
  • Strategies include synthetic (e.g., bisphosphonates) and biological (e.g., peptides) components.
  • Efficient delivery impacts treatment of infectious diseases, osteoporosis, and metabolic dysplasia.

Conclusions:

  • Targeted drug delivery is crucial for treating skeletal system diseases, particularly those involving avascular cartilage.
  • Challenges remain in maintaining drug activity and avoiding local adverse effects during delivery.
  • Further development of bone-targeting moieties is essential for advancing skeletal disorder therapies.