Omics Studies of Specialized Cells and Stem Cells under Microgravity Conditions

Area of Science:

• Space biology
• Molecular biology
• Genomics
• Proteomics
• Metabolomics

Background:

• Microgravity poses challenges to human health during spaceflight.
• Understanding cellular and molecular changes is crucial for astronaut well-being and future space missions.
• The NASA Twins Study highlighted the potential of omics technologies in space research.

Purpose of the Study:

• To review and synthesize current knowledge on omics studies of human cells and individuals in space.
• To focus on specialized cells and stem cells exposed to real and simulated microgravity.
• To explore the implications of these findings for space commercialization, exploration, and regenerative medicine.

Main Methods:

• Review of existing literature on omics (genomics, transcriptomics, epigenomics, metabolomics, proteomics) in space.
• Analysis of studies involving human cells and individuals exposed to microgravity (real and simulated).
• Focus on stem cells and specialized cell types.

Main Results:

• Omics data reveal alterations in human cell structure, morphology, function, and dynamics under microgravity.
• Significant changes observed in gene expression, protein levels, and metabolic profiles.
• Stem cells and specialized cells show unique responses to microgravity, with implications for tissue regeneration.

Conclusions:

• Omics technologies provide valuable insights into human adaptation to spaceflight.
• Knowledge gained can advance space exploration, commercialization, and translational regenerative medicine for astronauts and patients on Earth.