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Related Concept Videos

Mechanism of Angiogenesis01:10

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Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
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Modulating angiogenesis with integrin-targeted nanomedicines.

Aroa Duro-Castano1, Elena Gallon1, Caitlin Decker1

  • 1Centro de Investigación Príncipe Felipe, Polymer Therapeutics Lab., Av. Eduardo Primo Yúfera 3, E-46012 Valencia, Spain.

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Summary

Targeting angiogenesis with nanomedicines is promising. Integrin-binding peptides, like RGD, enhance nanomedicine delivery for cancer therapy and imaging.

Keywords:
AngiogenesisIntegrin-assisted imaging and theranosticsIntegrin-targetingRGD-bearing nanomedicinesTargeted drug-deliveryTargeted gene delivery

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Area of Science:

  • Biomedical Engineering
  • Nanotechnology
  • Oncology

Background:

  • Angiogenesis is crucial for tumor growth and metastasis.
  • Integrins are cell adhesion molecules overexpressed in angiogenic processes, serving as biomarkers.
  • Targeted nanomedicines offer improved therapeutic strategies for angiogenesis-related diseases.

Purpose of the Study:

  • To review recent advancements in integrin-targeting nanosystems.
  • To highlight the application of RGD peptides in nanomedicine.
  • To critically evaluate the benefits of integrin-targeting for therapy and diagnostics.

Main Methods:

  • Review of literature on integrin-assisted nanosystems.
  • Analysis of polymeric nanoconstructs, liposomes, and inorganic nanoparticles.
  • Examination of applications in drug/gene therapy, imaging, and theranostics.

Main Results:

  • Integrin-targeting enhances nanomedicine specificity and efficacy.
  • RGD peptides facilitate ligand-mediated targeting of various nanocarriers.
  • Nanosystems show potential in cancer therapy, imaging, and theranostics.

Conclusions:

  • Integrin-targeting nanomedicines represent a significant strategy for angiogenesis-related pathologies.
  • RGD peptide functionalization is a key approach for targeted drug/gene delivery and imaging.
  • Further research into integrin-assisted nanosystems can optimize therapeutic indices and patient outcomes.