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Contemporary biomedical engineering perspective on volitional evolution for human radiotolerance enhancement beyond
Alexander M Borg1, John E Baker2
1Departments of Biomedical Engineering and Radiation Oncology, Wake Forest University, Winston-Salem, NC, USA.
Synthetic Biology (Oxford, England)
|September 15, 2021
Summary
Human space exploration faces radiation risks. Volitional evolution, using gene editing like CRISPR/Cas9, may enhance radiotolerance for long-duration space travel, alongside advanced propulsion and synthetic torpor.
Area of Science:
- Astrobiology
- Genetics
- Biotechnology
Background:
- Human space exploration beyond low-Earth orbit presents significant risks from ionizing radiation.
- Current physiological defenses are insufficient for long-term interplanetary missions.
- Pathologies from space radiation exposure require thorough characterization and mitigation strategies.
Purpose of the Study:
- To explore volitional evolution as a pragmatic approach to mitigate space radiation pathologies.
- To investigate the potential of uniquely radioprotective genes and gene-editing technologies for enhancing human radiotolerance.
- To consider ethical implications and complementary strategies for radiation protection in space.
Main Methods:
- Identification of uniquely radioprotective genes.
- Application of CRISPR/Cas9 for targeted genomic modifications.
- Computational modeling of biological networks through artificial intelligence and genetic engineering.
Main Results:
- Certain genes confer radiotolerance when overexpressed in vitro and in vivo.
- CRISPR/Cas9 offers a reproducible method for precise genomic alterations.
- Advanced propulsion and synthetic torpor are identified as complementary strategies.
Conclusions:
- Volitional evolution, guided by genetic engineering, presents a viable path for human adaptation to space radiation.
- Ethical considerations are paramount when introducing genetically modified humans for space exploration.
- A multi-faceted approach combining genetic engineering, advanced technology, and computational modeling is essential for future deep space missions.
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