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Lab study finds two proteins that some cancer cells need to stay alive

Original title: The regulation of protein phosphatase 4 by FBXO42 is required for cancer cell survival.

How far along is this research?

This was done on cells in a lab, not in people. It is a very early step.

This was only done in cells grown in a lab.

The short version

This was a lab study in cells, not in people, looking at how some cancer cells stay alive.

What was studied. Scientists studied a protein called FBXO42 in cancer cells grown in a lab. They looked at how it works with two other proteins, called CCDC6 and PPP4C. One of the cell types they used was a glioblastoma: The fastest-growing type of glioma (grade 4). Treatment usually starts soon after diagnosis: surgery first, then radiation and chemotherapy. See the glossary cell line.

What they found. FBXO42 tags PPP4C and lowers how much of it the cell has. FBXO42 and CCDC6 each attach to PPP4C on their own, in separate ways. In the glioblastoma: The fastest-growing type of glioma (grade 4). Treatment usually starts soon after diagnosis: surgery first, then radiation and chemotherapy. See the glossary cells, taking away FBXO42 or CCDC6 killed the cells, but lowering PPP4C at the same time kept them alive. The team notes FBXO42 is needed in 15% of cancer cell lines from many different tissue types.

What this means, and what it doesn't

What it could mean: This adds to what scientists know about how some cancer cells survive. If PPP4C builds up too much, the cell dies. That could be useful to know when researchers look for new drug targets later on.

What it doesn't mean: This is not a treatment. It was done in cells in a dish, not in people or animals. Nothing here has been tested for safety or shown to help a person with a brain tumor. There is no drug from this work that a doctor can give you. It is not a cure, and it is a long way from everyday care.

Source: PubMed, July 14, 2026 · Read the original

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