Tumor Type M2 Pyruvate Kinase Expression in Gastric Cancer, Colorectal Cancer and Controls
Overview
Affiliations
Aim: Tumor formation is generally linked to an expansion of glycolytic phosphometabolite pools and aerobic glycolytic flux rates. To achieve this, tumor cells generally overexpress a special glycolytic isoenzyme, termed pyruvate kinase type M(2). The present study was designed to evaluate the use of a new tumor marker, tumor M(2)-PK, in discriminating gastrointestinal cancer patients from healthy controls, and to compare with the reference tumor markers CEA and CA72-4.
Methods: The concentration of tumor M(2)-PK in body fluids could be quantitatively determined by a commercially available enzyme-linked immunosorbent assay (ELISA)-kit (ScheBo Tech, Giessen, Germany). By using this kit, the tumor M(2)-PK concentration was measured in EDTA-plasma of 108 patients. For the healthy blood donors a cut-off value of 15 U/mL was evaluated, which corresponded to 90% specificity. Overall 108 patients were included in this study, 54 patients had a histological confirmed gastric cancer, 54 patients colorectal cancer, and 20 healthy volunteers served as controls.
Results: The cut-off value to discriminate patients from controls was established at 15 U/mL for tumor M(2)-PK. The mean tumor M(2)-PK concentration of gastric cancer was 26.937 U/mL. According to the TNM stage system, the mean tumor M(2)-PK concentration of stage I was 16.324 U/mL, of stage II 15.290 U/mL, of stage III 30.289 U/mL, of stage IV 127.31 U/mL, of non-metastasis 12.854 U/mL and of metastasis 35.711 U/mL. The mean Tumor M(2)-PK concentration of colorectal cancer was 30.588 U/mL. According to the Dukes stage system, the mean tumor M(2)-PK concentration of Dukes A was 16.638 U/mL, of Dukes B 22.070 U/mL, and of Dukes C 48.024 U/ml, of non-metastasis 19.501 U/mL, of metastasis 49.437 U/mL. The mean tumor M(2)-PK concentration allowed a significant discrimination of colorectal cancers (30.588 U/mL) from controls (10.965 U/mL) (P<0.01), and gastric cancer (26.937 U/mL) from controls (10.965 U/mL) (P<0.05). The overall sensitivity of tumor M(2)-PK for colorectal cancer was 68.52%, while that of CEA was 43.12%. In gastric cancer, tumor M(2)-PK showed a high sensitivity of 50.47%, while CA72-4 showed a sensitivity of 35.37%.
Conclusion: Tumor M(2)-PK has a higher sensitivity than markers CEA and CA72-4, and is a valuable tumor marker for the detection of gastrointestinal cancer.
Zhang T, Liu W, Li L, Jue Z, Xu C BMC Pulm Med. 2022; 22(1):307.
PMID: 35948914 PMC: 9364574. DOI: 10.1186/s12890-022-02103-x.
Biomarkers for Gastric Cancer Screening and Early Diagnosis.
Herrera-Pariente C, Montori S, Llach J, Bofill A, Albeniz E, Moreira L Biomedicines. 2021; 9(10).
PMID: 34680565 PMC: 8533304. DOI: 10.3390/biomedicines9101448.
Molecular and Metabolic Reprogramming: Pulling the Strings Toward Tumor Metastasis.
Hipolito A, Martins F, Mendes C, Lopes-Coelho F, Serpa J Front Oncol. 2021; 11:656851.
PMID: 34150624 PMC: 8209414. DOI: 10.3389/fonc.2021.656851.
Efficacy and mechanism of combination of oxaliplatin with PKM2 knockdown in colorectal cancer.
Yin C, Lu W, Ma M, Yang Q, He W, Hu Y Oncol Lett. 2020; 20(6):312.
PMID: 33093921 PMC: 7573921. DOI: 10.3892/ol.2020.12175.
Meoli L, Gupta N, Saeidi N, Panciotti C, Biddinger S, Corey K Am J Physiol Endocrinol Metab. 2018; 315(4):E613-E621.
PMID: 29462566 PMC: 6230703. DOI: 10.1152/ajpendo.00296.2017.