What Are the Benefits and Ethical Risks of CRISPR-Cas9? | Elizabeth Ryu | TEDxYouth@DaeguIntlSchool

TL;DR

CRISPR-Cas9 could help treat deadly diseases and precisely edit human genes, but its use demands firm ethical limits. Elizabeth Ryu highlights Victoria Gray’s 2019 gene therapy for sickle cell anemia while warning that embryonic editing could enable designer babies and deepen the divide between rich and poor. Read on to understand both the biological possibilities and the case for delaying embryonic gene editing.

Transcript

so 70 years ago Watson and Creek first developed while first discovered the structure of the DNA and in less than a century we have gone from uncovering the very basic basic building blocks of life to actually understanding them well enough so that we will be able to be architects of our own biology Jennifer doudna once said the more we know the mo... Read More

Key Insights

• 👻 CRISPR technology has progressed rapidly since its discovery, allowing for precise editing of human genes and cells.
• 😋 The potential benefits of this technology include treating deadly diseases, creating genetically modified foods, and protecting astronauts.
• 👶 However, ethical concerns arise around the concept of designer babies and the possibility of widening social inequalities.
• 😒 Striking a balance between scientific advancements and ethical considerations is crucial to ensure responsible use of CRISPR technology.
• ✳️ Without strict regulations, there is a risk of exploitation and a breakdown of ethical boundaries.
• 👨‍🔬 Further research is needed to understand the limitations and implications of gene editing before widespread implementation.
• ♿ The affordability and accessibility of CRISPR technology should be addressed to avoid exacerbating socioeconomic disparities.

Questions & Answers

Q: What are the benefits and ethical risks of CRISPR-Cas9?

CRISPR-Cas9 enables fast, precise genetic edits and could support treatments for HIV, sickle cell anemia, and muscular dystrophy. However, editing embryonic genes could enable designer babies, give parents control over a child’s traits, and create biological as well as economic inequality.

Q: What is CRISPR-Cas9 used for?

CRISPR-Cas9 can edit plants, animals, human cells, and human genes. The talk connects it to gene therapy, genetically modified food, and possible protection for astronauts from space radiation.

Q: How could gene editing help treat disease?

The talk says gene editing may provide immunity to diseases such as HIV and alleviate symptoms of genetic disorders such as sickle cell anemia and muscular dystrophy. It cites Victoria Gray, who underwent CRISPR-enabled gene therapy for sickle cell anemia in 2019.

Q: What examples of gene therapy does Elizabeth Ryu discuss?

Elizabeth Ryu discusses Victoria Gray’s 2019 CRISPR-enabled gene therapy for sickle cell anemia. She also describes a 19-month-old baby who survived metachromatic leukodystrophy after gene therapy in 2022.

Q: How could CRISPR-Cas9 affect genetically modified food?

The technology could enable more refined genetic modification of food. Examples in the talk include wheat with lower gluten levels and lettuce able to grow in warmer climates.

Q: What are designer babies?

Designer babies involve editing an embryo’s genes to predetermine traits such as appearance, intelligence, and physical development. The talk argues that this gives one person extraordinary control over another person’s life and raises the concern of humans “playing God.”

Q: How could CRISPR-Cas9 widen inequality?

The talk argues that genetic engineering will remain expensive even if it becomes more accessible. If mainly the richest people can enhance their children, poorer people could become not only economically disadvantaged but biologically disadvantaged as well.

Q: What approach does Elizabeth Ryu recommend for embryonic gene editing?

She recommends a conservative approach, including a targeted legal delay on embryonic gene editing. Her reasoning is that scientists still do not fully understand DNA’s limitations and must establish ethical boundaries before moving forward.

Summary & Key Takeaways

• CRISPR, a groundbreaking genetic engineering technique, has advanced rapidly since its discovery 70 years ago, enabling precise edits on human genes and cells.

• This technique holds promise in treating deadly diseases like HIV and sickle cell anemia, creating genetically modified foods, and protecting astronauts from space radiation.

• However, the ethical implications of editing human genes, especially in the context of designer babies, and the potential for widening the gap between the rich and poor raise significant concerns.