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Culturing Lymphocytes in Simulated Microgravity Using a Rotary Cell Culture System
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Microgravity and immune cells.

Hongfang Lv1, Huan Yang1, Chunmei Jiang1

  • 1Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China.

Journal of the Royal Society, Interface
|February 15, 2023
PubMed
Summary

Spaceflight's microgravity weakens the immune system, increasing astronaut disease risk. This review details how microgravity affects immune cell development and function, and explores potential countermeasures.

Keywords:
activationdifferentiationmetabolismmicrogravityrecovery measuresstructure and function

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Area of Science:

  • Spaceflight immunology
  • Cellular biology in microgravity

Background:

  • Microgravity during spaceflight compromises astronaut immune systems, increasing disease susceptibility.
  • Immune cells are highly sensitive to gravitational changes, impacting their development and function.
  • Existing research often categorizes microgravity effects on immune cells, but lacks a holistic view across their lifecycle.

Purpose of the Study:

  • To comprehensively review microgravity's impact on immune cell differentiation, activation, metabolism, and function.
  • To analyze molecular mechanisms underlying microgravity-induced immune cell alterations.
  • To summarize current strategies for mitigating microgravity's detrimental effects on immune cells.

Main Methods:

  • Literature review and synthesis of existing research on microgravity and immunology.
  • Analysis of molecular pathways affected by altered gravity.
  • Summary of therapeutic interventions targeting immune cell health in space.

Main Results:

  • Microgravity affects multiple stages of immune cell development and function through diverse mechanisms.
  • Specific molecular pathways are implicated in microgravity-induced immune dysregulation.
  • Various natural compounds show potential in reversing microgravity-induced immune damage.

Conclusions:

  • A comprehensive understanding of microgravity's effects on the entire immune cell lifecycle is crucial.
  • Targeting cell proliferation, apoptosis, and function with specific agents can counteract immune impairment.
  • This review provides a foundation for developing countermeasures against spaceflight-induced immunosuppression.