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- Title
TKTL1 as a Prognostic Marker in Pancreatic Ductal Adenocarcinoma and Its Correlation with FDG-PET-CT.
- Authors
Ahopelto, Kaisa; Saukkonen, Kapo; Hagström, Jaana; Kauhanen, Saila; Seppänen, Hanna; Böckelman, Camilla; Haglund, Caj
- Abstract
Introduction: Glucose metabolism in cancer cells differs from noncancerous cells. The expression of transketolase-like protein 1 (TKTL1), a key enzyme in the glucose metabolism of cancer cells, predicts poor prognosis in several cancer types. We studied TKTL1 as a prognostic tool and whether TKTL1 expression correlates with 18F-FDG-PET-CT among patients with pancreatic ductal adenocarcinoma (PDAC). Methods: This retrospective study examined two PDAC patient cohorts: 168 patients operated on at Helsinki University Hospital between 2001 and 2011, and 20 patients with FDG-PET-CT results available from the Auria Biobank. We used immunohistochemistry for TKTL1 expression, combining results with clinicopathological data. Results: Five-year disease-specific survival (DSS) was slightly but not significantly better in patients with a high versus low TKTL1 expression, with DSS of 28.0 versus 17.3%, respectively (p = 0.123). TKTL1 served as a marker of a better prognosis in patients over 65 years old (p = 0.012) and among those with TNM class M1 (p = 0.018), stage IV disease (p = 0.027), or perivascular invasion (p = 0.008). Conclusions: Our study shows that TKTL1 cannot be used as a prognostic factor in PDAC with the exception of elderly patients and those with advanced disease. The correlation of TKTL1 with 18F-FDG-PET-CT requires further study in a larger patient cohort.
- Subjects
FINLAND; PANCREATIC tumors; ADENOCARCINOMA; IMMUNOHISTOCHEMISTRY; CANCER invasiveness; RETROSPECTIVE studies; DUCTAL carcinoma; GENE expression; TUMOR classification; TRANSFERASES; POSITRON emission tomography; RADIOPHARMACEUTICALS; TUMOR markers; DEOXY sugars
- Publication
Oncology, 2021, Vol 99, Issue 3, p177
- ISSN
0030-2414
- Publication type
Article
- DOI
10.1159/000510862