Module VIII·Article II·~1 min read
Biotechnological Revolution: CRISPR and Synthetic Biology
Science in the 21st Century: AI, Biotech, and Climate
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CRISPR-Cas9: Genetic Scissors
CRISPR-Cas9 is a genome editing system, discovered in nature as the immune mechanism of bacteria and adapted for use in 2012 by Jennifer Doudna and Emmanuelle Charpentier (Nobel Prize 2020). The essence: "molecular scissors" that cut DNA at an exactly specified location.
Before CRISPR, genome editing was expensive, slow, and imprecise. CRISPR made it fast, cheap, and accessible—$50 instead of $50,000. This is the democratization of molecular biology with unpredictable consequences.
Applications: treatment of sickle cell anemia (approved by the FDA in 2023), possible treatment of hereditary diseases, research in oncology. "Designer babies"—germline editing, which is prohibited in most countries. He Jiankui (2018)—created the first genetically modified humans and ended up in prison.
Synthetic Biology
Synthetic biology is the design of living systems from scratch or the modification of existing ones to create new functions. Bacteria synthesizing insulin is already a reality (about 70% of the world's insulin is produced by transgenic bacteria). Yeast synthesizing opioids and antimalarial drugs.
The synthesis of arbitrary DNA sequences is rapidly approaching. This opens up opportunities—and risks: biological weapons could theoretically be created in desktop laboratories.
"Biosafety" and "biosecurity" are different things: the first concerns protecting researchers from pathogens, the second—preventing the misuse of biotechnology. Regulation lags sharply behind technology.
Question for reflection: CRISPR has the potential to eliminate hereditary diseases. What ethical principles should define the boundaries for the application of this technology? Who should make these decisions?
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