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Scalable Biomanufacturing Workflow to Produce and Isolate Natural Killer Cell-Derived Extracellular Vesicle-Based Cancer Biotherapeutics
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Cancer exosomes and natural killer cells dysfunction: biological roles, clinical significance and implications for

Reza Hosseini1, Hamzeh Sarvnaz2, Maedeh Arabpour3

  • 1Department of Immunology School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran. reza.hosseini6970@yahoo.com.

Molecular Cancer
|January 15, 2022
PubMed

Insights

Tumor-derived exosomes (TDEs) impair natural killer (NK) cell anti-tumor immunity, hindering cancer immunotherapy. This review explores how TDEs suppress NK cells and discusses strategies to overcome these effects for improved cancer treatment.

Area of Science:

  • Immunology
  • Oncology
  • Cell Biology

Background:

  • Tumor-derived exosomes (TDEs) are implicated in cancer progression.
  • Natural killer (NK) cells are crucial for anti-tumor immunity and cancer surveillance.
  • NK cell-based immunotherapy shows promise but faces challenges.

Purpose of the Study:

  • To review the mechanisms by which TDEs impair NK cell function.
  • To discuss the clinical significance of TDEs in cancer immunotherapy.
  • To explore strategies for overcoming TDE-mediated NK cell suppression.

Main Methods:

  • Literature review of studies on TDEs and NK cells.
  • Analysis of mechanistic insights into TDE-NK cell interactions.
  • Discussion of clinical implications and therapeutic approaches.

Main Results:

  • TDEs employ various strategies, including exosome secretion, to subvert NK cell responses.
  • TDEs negatively impact NK cell-mediated anti-tumor immunity, favoring tumor growth.
  • Understanding these interactions is key to enhancing NK cell immunotherapy.

Conclusions:

  • TDEs represent a significant barrier to effective NK cell immunotherapy.
  • Targeting TDEs or their effects on NK cells may improve cancer treatment outcomes.
  • Further research is needed to develop strategies to nullify TDEs' immunosuppressive effects.

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