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Proteomic Test Cuts Childhood Rare Disease Diagnosis to Under Three Days

Functional protein profiling from a one-milliliter blood sample in under three days could end the prolonged testing journeys families endure

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image: ©macniak | iStock
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Overview

  • The assay measures over 8,000 proteins in peripheral blood mononuclear cells, covering more than half of known Mendelian and mitochondrial disease genes.
  • The test requires one milliliter of blood and delivers results in under three days, offering a minimally invasive alternative to biopsies and targeted assays.
  • Trio analysis differentiates carriers from affected children in recessive conditions by comparing patient samples with parental protein profiles.
  • Early validation trials reported around 83% accuracy in identifying confirmed rare inherited diseases.
  • Researchers are recruiting about 300 patients across diverse genetic disorders to expand validation and pave the way for clinical adoption.