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'Trained immunity': consequences for lymphoid malignancies.

Wendy B C Stevens1, Mihai G Netea2,3, Arnon P Kater4

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Summary
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Trained immunity, a concept where innate immune cells gain long-term memory, shows promise for treating hematological malignancies. Enhancing this immune response could help manage lymphoid cancers and associated infections.

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Area of Science:

  • Immunology
  • Hematology
  • Oncology

Background:

  • Hematological malignancies involve complex interactions between the immune system, microbes, and cancer cells.
  • Malignant cells create immunosuppressive environments, increasing infection risk.
  • Disrupted innate immunity contributes to blood cancer development via chronic inflammation and immune dysfunction.

Purpose of the Study:

  • To review the concept of trained immunity in the context of lymphoid malignancies.
  • To explore the potential of trained immunity for preventing and treating hematological cancers and infections.

Main Methods:

  • Review of existing literature on innate immunity, trained immunity, and hematological malignancies.
  • Discussion of epigenetic reprogramming underlying trained immunity.
  • Exploration of potential therapeutic applications of trained immunity induction.

Main Results:

  • Innate immune cells like monocytes/macrophages and NK cells can develop immunological memory, termed 'trained immunity'.
  • This enhanced functionality relies on epigenetic reprogramming following stimulation.
  • Trained immunity offers a potential new strategy for managing hematological cancers.

Conclusions:

  • Inducing trained immunity may ameliorate infectious complications in lymphoid malignancies.
  • Trained immunity could potentially impact hematological disease progression.
  • Further research is needed to validate the therapeutic potential of trained immunity in lymphoid malignancies.