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Single tRNA controls prostate cancer identity and treatment resistance (opens in a new tab)

news-medical.net · 2026-10-07

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Claim 1 of 6Not checkedFred Hutch researchers say they identified a previously overlooked molecular regulator that helps determine whether prostate tumors remain sensitive to treatment or become more aggressive and drug-resistant.View evidenceHide evidence

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Claim 2 of 6Not checkedThe article says the Nature study found, for the first time, that a single transfer RNA can control prostate cancer cell identity and influence response to therapy.View evidenceHide evidence

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Claim 3 of 6Not checkedThe story says prostate cancer can shift from androgen receptor-dependent disease to an androgen receptor-independent state that is more aggressive and less responsive to treatment.View evidenceHide evidence

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The source study was found, but this claim couldn't be checked against it.

Claim 4 of 6Not checkedThe article reports that the specific tRNA tRNA1Arg(UCU) was high in androgen receptor-dependent prostate cancer cells but diminished in less androgen receptor-dependent, treatment-resistant tumors across cell lines, mouse models, and patient samples.View evidenceHide evidence

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Claim 5 of 6Not checkedThe story says experiments found that giving treatment-resistant tumors this tRNA could shift them back toward sensitivity to androgen receptor-targeting treatments.View evidenceHide evidence

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Claim 6 of 6Not checkedThe article says the researchers are considering the tRNA as a possible biomarker or therapeutic target for aggressive prostate cancer and think the approach could extend to other cancers with identity switches after treatment.View evidenceHide evidence

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tRNA dosage regulates lineage dependency and resistance in prostate cancer

Nature · 2026

Source record (opens in a new tab)

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Papers considered

The selected paper, plus nearby candidates.

Crossref, PubMed · 16 candidate papers

Candidate

Androgen receptor-dependent mechanisms mediating therapy resistance in prostate cancer

Therapy Resistance in Prostate Cancer · 2024 · Crossref

Source (opens in a new tab)

And 10 more candidates considered.