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Liposome and immune system interplay: Challenges and potentials.

Fahimeh Zahednezhad1, Maryam Saadat1, Hadi Valizadeh2

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|May 24, 2019
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Summary

Liposomes face immune challenges like hypersensitivity and accelerated blood clearance, hindering drug delivery. Understanding these interactions can improve formulations and enable immune-targeted liposome development.

Keywords:
Drug deliveryImmune systemImmunotherapyLiposomeOpsonizationReticuloendothelial system

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Area of Science:

  • Nanotechnology
  • Immunology
  • Pharmacology

Background:

  • Liposomes are promising drug delivery carriers but face significant challenges in biological environments.
  • Immune-related effects, including hypersensitivity and accelerated blood clearance, can impede liposome efficacy and regulatory approval.

Purpose of the Study:

  • To review the challenges associated with liposome effectiveness in biological systems.
  • To investigate liposome interactions with the innate and acquired immune systems, focusing on opsonization.
  • To explore the potential for developing immune-targeted liposomes for immunotherapy and vaccination.

Main Methods:

  • Literature review of liposome challenges in biological environments.
  • Investigation of opsonization and immune system interactions with liposomes.
  • Review of immune system components, receptors, and cells involved in liposome interactions.

Main Results:

  • Identified key immune-related effects: hypersensitivity, accelerated blood clearance, opsonization, reticuloendothelial system uptake, and immune suppression.
  • Detailed the mechanisms of liposome interaction with innate and acquired immunity.
  • Highlighted the importance of understanding these interactions for formulation development.

Conclusions:

  • Awareness of immune interactions is crucial for liposome formulation scientists.
  • Understanding immune responses can guide the development of improved liposomal drug delivery systems.
  • Exploiting immune interactions opens avenues for immune-targeted liposomes in immunotherapy and vaccination.