A gene target that may weaken some glioma cells
Original title: Genome-wide CRISPR screen identifies PKMYT1 inhibition as a synthetic lethal vulnerability in IDH1-mutant glioma.
How far along is this research?
- Lab cells
- Animals
- Review
- Tested in people
This was done in animals, not people. Most findings at this stage never become treatments.
This was only done in lab cells and in animals, not in people.
The short version
Blocking one protein killed glioma: A tumor that starts in the glial cells. Those are the support cells of the brain and spinal cord. Gliomas are given a grade from 1 to 4. The grade says how the tumor is expected to act. See the glossary cells that carry a change in the IDH gene change: A small change in a tumor's IDH gene. It is the first thing your team looks at when naming an adult glioma, and it can affect which treatments are offered. Your pathology report says whether your tumor has it. See the glossary gene.
What was studied. Researchers compared glioma: A tumor that starts in the glial cells. Those are the support cells of the brain and spinal cord. Gliomas are given a grade from 1 to 4. The grade says how the tumor is expected to act. See the glossary cells with an IDH gene change: A small change in a tumor's IDH gene. It is the first thing your team looks at when naming an adult glioma, and it can affect which treatments are offered. Your pathology report says whether your tumor has it. See the glossary gene change to cells without it. They checked every gene to find the ones the changed cells need to stay alive. They tested their find in cells in a dish and in living animals.
What they found. The cells with the IDH gene change: A small change in a tumor's IDH gene. It is the first thing your team looks at when naming an adult glioma, and it can affect which treatments are offered. Your pathology report says whether your tumor has it. See the glossary change needed a protein called PKMYT1 to keep growing. When the team blocked PKMYT1 with a drug, or shut off its gene, tumor cell growth dropped a lot. This happened both in the dish and in animals. The cells were pushed to split before their DNA was fully copied, so they broke down and died.
What this means, and what it doesn't
What it could mean: This points to a possible new way to attack glioma: A tumor that starts in the glial cells. Those are the support cells of the brain and spinal cord. Gliomas are given a grade from 1 to 4. The grade says how the tumor is expected to act. See the glossary that carries an IDH gene change: A small change in a tumor's IDH gene. It is the first thing your team looks at when naming an adult glioma, and it can affect which treatments are offered. Your pathology report says whether your tumor has it. See the glossary gene change. It gives drug makers a clear target to test next.
What it doesn't mean: This is early lab and animal work. No person with a brain tumor was treated in this study. There is no approved PKMYT1 drug for glioma: A tumor that starts in the glial cells. Those are the support cells of the brain and spinal cord. Gliomas are given a grade from 1 to 4. The grade says how the tumor is expected to act. See the glossary, and none is on offer in the clinic now. Many ideas that work in cells and animals do not work in people. This is not a promise of a cure.
Source: PubMed, October 8, 2026 · Read the original
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