ArticleJournal of clinical laboratory analysis2022
Ornithine aminotransferase and carbamoyl phosphate synthetase 1 involved in ammonia metabolism serve as novel targets for early stages of gastric cancer.
Article in Journal of clinical laboratory analysis, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 3 citations in OpenAlex.
- CPS1 promotes colorectal cancer progression by inducing EMT and activating TGF-β/Smad signaling pathway.iScience · 2026Article
- Beyond Ornithine Metabolism in Gyrate Atrophy: Tissue-Specific Proteomic Insights into Neonatal and Adult OAT Deficiency.bioRxiv : the preprint server for biology · 2025Article
- Construction of mitochondrial signature (MS) for the prognosis of ovarian cancer.Discover oncology · 2025Article
- Ornithine aminotransferase and carbamoyl phosphate synthetase 1 involved in ammonia metabolism serve as novel targets for early stages of gastric cancer.Journal of clinical laboratory analysis · 2022Article
- Reprogramming-driven Proteomic Shifts Mirror Bladder Cancer Progression and Reveal Biomarker Candidates Across Disease Grades.Cancer genomics & proteomicsArticle
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
objectiveThe sensitivity and specificity of current biomarkers for gastric cancer were insufficient. The aim of the present study was to screen novel biomarkers and determine the diagnostic values of ornithine aminotransferase (OAT) and carbamoyl phosphate synthetase 1 (CPS1) for detecting gastric cancer.
methodsWith stable isotope tags, we labelled an initial discovery group of four paired gastric cancer tissue samples and identified with LC-ESI-MS/MS. A validation group of 159 gastric cancer samples and 30 healthy controls were used to validate the candidate targets. GSEA was used to explore the pathways activated in gastric cancer.
resultsFour hundred and thirty one proteins were found differentially expressed in gastric cancer tissues. Of these proteins, OAT and CPS1 were found over-expressed in gastric cancer patients, with sensitivity of 70.4% (95% CI: 63.3%-77.6%) and specificity of 80.5% (95% CI: 74.3%-86.7%) for ornithine aminotransferase, and with sensitivity of 68.6% (95% CI: 61.3%-75.8%) and specificity of 73% (95% CI: 66%-79.9%) for carbamoyl phosphate synthetase 1. The co-expression of OAT and CPS1 in gastric cancer tissues has a sensitivity of 81% (95% CI: 73.2%-88.8%) and specificity of 89% (95% CI: 83%-95%). Furthermore, both OAT and CPS1 were overexpressed in patients with local invasion T3 and T4 stages than those in patients with T1 and T2 stages. The co-expression of OAT and CPS1 was strongly correlated with histological grade I 68% (95% CI: 58.7%-77.3%) and TNM stage I/II 52% (95% CI: 42%-62%). The areas under ROC curves were up to 0.758 for the co-expression of OAT and CPS1 in gastric cancer. GSEA results showed that two gene sets and 30 gene sets were activated in OAT high- and CPS1 high-expression patients with gastric cancer, respectively.
conclusionsThe present findings indicated a tight correlation between the co-expression of OAT and CPS1 and the histological grade, local invasion, and TNM stages of gastric cancer. Therefore, OAT and CPS1 might be predictors for gastric cancer invasion and potential targets for anticancer drug design for gastric cancer.
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