Scientists at Oregon Health & Science University developed a blood-based technique using microchip technology and nanoparticles to detect pancreatic cancer, achieving 97% accuracy in distinguishing cancer from benign pancreatic disease in a blinded study of 36 people—outperforming the 79% detection rate of traditional needle biopsies. The method uses dielectrophoresis to capture tumor-secreted nanoparticles containing cancer biomarkers from a simple blood draw, potentially enabling earlier detection in high-risk individuals and helping surgeons avoid unnecessary removal of benign masses. Lead researcher Stuart Ibsen estimates the technique is approximately five years from clinical use. The breakthrough addresses a critical gap in pancreatic cancer care, where most cases are not detected until late stages when treatment is largely ineffective.
New microchip nanoparticle detection technique for pancreatic cancer
- ▪The Oregon Health & Science University pancreatic cancer detection technique involves fluorescent staining to reveal biomarkers associated with pancreatic cancer
- ▪The study on the Oregon Health & Science University pancreatic cancer detection technique was published in the journal Small
- ▪Stuart Ibsen is an associate professor of biomedical engineering in the OHSU School of Medicine and the OHSU Knight Cancer Institute
- ▪Scientists at Oregon Health & Science University developed a technique using an electronic jolt and nanoparticles to detect pancreatic cancer
- ▪The Oregon Health & Science University pancreatic cancer detection technique uses a small electronic jolt on a microchip to collect nanoparticles shed by tumors into blood
- ▪The Oregon Health & Science University pancreatic cancer detection method would involve a simple blood draw among people who are considered higher risk due to family history or other factors
- ▪The Oregon Health & Science University pancreatic cancer detection technique uses dielectrophoresis to recover nanoparticles carrying cell-free DNA and protein biomarkers
Superior accuracy compared to traditional biopsy methods
- ▪The Oregon Health & Science University study compared blood drawn from 36 people, including those with pancreatic cancer and a control group with noncancerous pancreatic disorders such as pancreatitis
- ▪The Oregon Health & Science University pancreatic cancer detection technique showed a 97% likelihood of correctly distinguishing people with cancer from those with benign pancreatic disease
- ▪Direct biopsies of the pancreas using ultrasound-guided fine needles reveal 79% of pancreatic cancers
- ▪The Oregon Health & Science University pancreatic cancer detection study was blinded so researchers did not know which samples came from cancer patients
Clinical implications and timeline for implementation
- ▪The Oregon Health & Science University pancreatic cancer blood test could help surgeons determine whether a pancreatic mass needs to be surgically removed
- ▪Stuart Ibsen estimates the Oregon Health & Science University pancreatic cancer detection technique is probably five years away from clinical use
- ▪The Oregon Health & Science University study was conducted in collaboration with OHSU's Brenden-Colson Center for Pancreatic Care
Perspective of Stuart Ibsen and OHSU researchers
- ▪The dielectrophoresis method developed at Oregon Health & Science University can capture tumor-derived nanoparticles that imaging techniques cannot detect
- ▪The Oregon Health & Science University blood test approach offers a less invasive alternative to ultrasound-guided needle biopsies of the pancreas
- ▪The Oregon Health & Science University nanoparticle technique could enable screening of high-risk individuals before pancreatic cancer progresses to late stages
Perspective of Pancreatic cancer patients and high-risk individuals
- ▪Patients with pancreatic masses could avoid unnecessary surgical removal of benign tumors if the Oregon Health & Science University blood test confirms non-cancerous status
Perspective of Surgeons and clinical practitioners
- ▪Surgeons could use the Oregon Health & Science University blood test results to make more informed decisions about whether pancreatic masses require surgical intervention
- ▪Clinical adoption of the Oregon Health & Science University pancreatic cancer blood test depends on validation through larger trials beyond the initial 36-person study
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