Gastric Cancer Biomarkers from Gastric Fluid
Author Information
Author(s): Kon Oi Lian, Yip Tai-Tung, Ho Meng Fatt, Chan Weng Hoong, Wong Wai Keong, Tan Soo Yong, Ng Wai Har, Kam Siok Yuen, Eng Alvin KH, Ho Patrick, Viner Rosa, Ong Hock Soo, Kumarasinghe M Priyanthi
Primary Institution: National Cancer Centre, Singapore
Hypothesis
Can the proteomic profile of gastric fluid provide reliable biomarkers for diagnosing gastric cancer?
Conclusion
The study found that a multimarker proteomic assay can improve the diagnostic accuracy for gastric cancer and pre-malignant lesions.
Supporting Evidence
- The proteomic profiles showed 60 features up-regulated and 46 down-regulated in gastric cancer samples.
- The sensitivity of the assay was 95% for cancer detection in the training set.
- Validation in a second sample set showed sensitivity and specificity of 88% and 93%, respectively.
Takeaway
Doctors can use a special test on stomach fluid to find out if someone has stomach cancer, which can help catch it early when it's easier to treat.
Methodology
Protein profiles were generated from gastric fluid samples using mass spectrometry and analyzed for significant differences between cancer and benign samples.
Potential Biases
Potential biases may arise from the selection of samples and the clinical context of the patients.
Limitations
The study's findings need validation in larger cohorts and may not account for all demographic variations.
Participant Demographics
The study included 19 gastric cancer patients (mean age 68, 13 male, 6 female) and 36 benign gastritis patients (mean age 57, 19 male, 17 female).
Statistical Information
P-Value
0.0062
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
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