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Q&A: One scientist’s bold vision to make on-demand treatments routine for life-threatening rare genetic diseases

Broad Institute

Related groups Liu Group Related news New CRISPR genome editing system offers a wide range of versatility in human cells Researchers extend power of gene editing by developing a new class of DNA base editors In May 2025, researchers announced that K.J. Some of these treatments, like K.J.’s, He needed a personalized, one-of-a-kind therapy.

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A Visual Guide to Gene Delivery

Codon

A gene is the essential hereditary unit that passes traits from parents to offspring; a segment of DNA containing instructions for making a specific protein or molecule that performs a particular function in your body. As methods for resolving errors in DNA continue to advance, it has never been easier to fix a broken gene.

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A Visual Guide to Genome Editors

Codon

Certain CRISPR components can add short DNA sequences from the genomes of defeated viruses into the bacterium’s own genome, creating a type of protective “memory.” If the same virus invades the cell a second time, the gRNA’s spacer sequence will bind to the matching viral DNA sequence, then be cut by the Cas protein.

DNA
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Levers for Biological Progress

Codon

For example, cloning DNA molecules and inserting them into cells — a process required for basically all experiments in molecular biology — takes up to a week of work. Perhaps you’ve seen this chart before, which shows the falling costs of DNA sequencing over the last two decades. If we could get E.

DNA
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Epigenetic editing: the next generation of genetic medicine

Drug Target Review

The reasons for this are multifaceted, including concerns over the safety of directly altering DNA sequences and subsequent regulatory restrictions that have arisen as a result. The epigenome (meaning ‘above the genome’) is a system of reversible marks regulating how the DNA is read, translated and used.

DNA
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DNA Analysis Finds New Target for Diabetes Drugs

NIH Director's Blog: Drug Development

Credit: Jane Ades, National Human Genome Research Institute, NIH Type 2 diabetes (T2D) tends to run in families, and over the last five years the application of genomic technologies has led to discovery of more than 60 specific DNA variants that contribute to risk. Nat Rev Drug Discov. 2013 Aug;12(8):581-94. [3]

DNA
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Cas9 ancestor engineered into a compact genome editing tool

Broad Institute

Cas9 ancestor engineered into a compact genome editing tool By Tom Ulrich May 14, 2025 Breadcrumb Home Cas9 ancestor engineered into a compact genome editing tool Researchers adapt a compact RNA-guided enzyme from bacteria for a variety of DNA editing tasks in human cells. Like Cas9, IscB enzymes cut DNA at sites specified by an RNA guide.