Public health ·

Genetic clues found in newborn blood from children who later developed cancer

Researchers examined archived newborn blood samples from 1,948 children who later developed a solid or brain tumor by age eight. Testing eleven genes identified pathogenic or likely pathogenic germline variants in 132 children.

VitalHaber · Updated: 21.10.2026

Health and science communication: Gürkan Özkoç, MD, FACS

A blood-spot screening card, baby blanket and DNA model — AI-generated representative illustration.
AI-generated illustration; it does not depict a real patient, study or treatment outcome.

The story in detail

Archived newborn blood spots were used to investigate inherited cancer predisposition. Researchers examined 11 genes in 1,948 Michigan children who later developed selected solid or central nervous system tumours before age eight. Pathogenic or likely pathogenic variants were found in 6.8%, with substantial differences between tumour types.

That percentage does not mean that 6.8% of all newborns will develop cancer: the main study group consisted of children who subsequently had cancer. A variant also does not make disease inevitable. Before population screening, researchers must evaluate uncertain results, family effects, follow-up demands and whether earlier detection improves outcomes. The study explores a screening possibility rather than establishing a proven standard programme for every baby.

Study date: 2026-08-12 · Story: 20 October 2026

What was found?

Researchers examined archived newborn blood samples from 1,948 children who later developed a solid or brain tumor by age eight. Testing eleven genes identified pathogenic or likely pathogenic germline variants in 132 children.

What does it mean?

Some cancer predispositions may be detectable at birth, potentially helping guide appropriate surveillance for children at increased risk.

Limitations

This proportion does not describe all newborns: researchers selected children who later developed cancer. It does not prove screening improves survival or identifies every future cancer.

Sources and review scope

Original article (DOI) · Reviewed source 1 · Reviewed source 2 · Reviewed source 3

Retrospective genetic study; primary abstract findings and investigator institution report checked.

Sources last checked: 20 October 2026.

Editorial expansion: 21.10.2026

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This story provides general information, not individual diagnosis or treatment advice. Findings should be considered within the conditions and limitations of the study.