How does CRISPR gene editing technology work to cure diseases?

CRISPR is like a super-smart scissors that can fix broken parts of our body’s instruction book, the DNA.

Imagine your body is like a big factory, and DNA is the recipe card for making everything in it. Sometimes, these cards get scribbled on or have typos, which can make people sick. CRISPR helps us find those mistakes and correct them.

Let's say you're baking cookies, but the recipe says "add 1 cup of sugar," but it's actually written as "add 10 cups of sugar." The cookies come out way too sweet, that’s like having a disease. CRISPR is like a little helper who finds the wrong line in the recipe and changes it back to "1 cup."

CRISPR uses special tools called guide RNA and an enzyme called Cas9. Think of guide RNA as a map leading Cas9, the scissors, right to the typo in the DNA. Once there, Cas9 cuts out the mistake, and the body fixes it with the correct instructions.

This process can help cure diseases like sickle cell anemia or cystic fibrosis by fixing the broken parts of the DNA, just like changing a wrong line in a recipe so the cookies turn out perfect again!