PMID- 24297035 OWN - NLM STAT- MEDLINE DCOM- 20140903 LR - 20161125 IS - 1791-2431 (Electronic) IS - 1021-335X (Linking) VI - 31 IP - 2 DP - 2014 Feb TI - Molecular mechanisms of [18F]fluorodeoxyglucose accumulation in liver cancer. PG - 701-6 LID - 10.3892/or.2013.2886 [doi] AB - To elucidate the molecular mechanisms underlying the insufficient sensitivity in the detection of hepatocellular carcinoma (HCC) by [18F] 2- fl uoro-2-deoxy-D-glucose positron emission tomography (FDG-PET), the characteristics of glucose metabolism-related protein expression in HCC were examined in liver metastasis from colorectal cancer (Meta). Thirty-four patients (14 Meta and 20 HCC) who underwent FDG-PET and hepatectomy were studied. The relationships between the maximum standardized uptake value (SUV) in tumors and the mRNA expression of glucose metabolism-related proteins [hexokinase (HK), glucose transporter 1 (GLUT1), and glucose-6-phosphatase (G6Pase)] and proliferating cell nuclear antigen (PCNA) were examined in snap-frozen specimens with quantitative PCR. Tumor detection rates were lower in HCC (15/20) compared to Meta (13/14) patients. HK and GLUT1 expression was lower and G6Pase expression was higher in HCC compared to Meta. In particular, GLUT1 overexpression was 92-fold in Meta and 11-fold in HCC compared to the surrounding liver. The SUV correlated with GLUT1 and PCNA expression in HCC, but not Meta patients. Of note, four cases of poorly differentiated (P/D) HCC compared to moderately differentiated (M/D) HCC produced completely different results for FDG uptake (SUV, 14.4 vs. 4.0) and mRNA expression (G6Pase expression, 0.007 vs. 1.5). Variations in the expression of glucose metabolism-related enzymes between HCC and Meta patients are attributed to origin or degree of differentiation. Low FDG uptake in M/D HCC reflected low GLUT1 and high G6Pase expression, while high FDG accumulation in P/D HCC could reflect increased GLUT1 and decreased G6Pase expression. These results may explain why M/D HCC is not detected as sensitively by FDG-PET. FAU - Izuishi, Kunihiko AU - Izuishi K AD - Department of Gastroenterological Surgery, Faculty of Medicine, Kagawa University, Miki, Kita, Kagawa 761-0793, Japan. FAU - Yamamoto, Yuka AU - Yamamoto Y AD - Department of Radiology, Faculty of Medicine, Kagawa University, Miki, Kita, Kagawa 761-0793, Japan. FAU - Mori, Hirohito AU - Mori H AD - Department of Internal Medicine of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Miki, Kita, Kagawa 761-0793, Japan. FAU - Kameyama, Riko AU - Kameyama R AD - Department of Radiology, Faculty of Medicine, Kagawa University, Miki, Kita, Kagawa 761-0793, Japan. FAU - Fujihara, Shintaro AU - Fujihara S AD - Department of Internal Medicine of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Miki, Kita, Kagawa 761-0793, Japan. FAU - Masaki, Tsutomu AU - Masaki T AD - Department of Internal Medicine of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Miki, Kita, Kagawa 761-0793, Japan. FAU - Suzuki, Yasuyuki AU - Suzuki Y AD - Department of Gastroenterological Surgery, Faculty of Medicine, Kagawa University, Miki, Kita, Kagawa 761-0793, Japan. LA - eng PT - Journal Article DEP - 20131129 PL - Greece TA - Oncol Rep JT - Oncology reports JID - 9422756 RN - 0 (Glucose Transporter Type 1) RN - 0 (Glucose Transporter Type 2) RN - 0 (Proliferating Cell Nuclear Antigen) RN - 0 (RNA, Messenger) RN - 0 (Radiopharmaceuticals) RN - 0 (SLC2A1 protein, human) RN - 0 (SLC2A2 protein, human) RN - 0Z5B2CJX4D (Fluorodeoxyglucose F18) RN - 40871-47-4 (2-fluoro-2-deoxyglucose-6-phosphate) RN - 56-73-5 (Glucose-6-Phosphate) RN - EC 2.7.1.1 (Hexokinase) RN - EC 3.1.3.9 (Glucose-6-Phosphatase) RN - IY9XDZ35W2 (Glucose) SB - IM MH - Aged MH - Carcinoma, Hepatocellular/diagnosis/*diagnostic imaging/surgery MH - Female MH - *Fluorodeoxyglucose F18/chemistry MH - Glucose/*metabolism MH - Glucose Transporter Type 1/analysis/genetics MH - Glucose Transporter Type 2/analysis MH - Glucose-6-Phosphatase/genetics/metabolism MH - Glucose-6-Phosphate/analogs & derivatives/chemistry MH - Hepatectomy MH - Hexokinase/analysis/genetics MH - Humans MH - Liver/diagnostic imaging/metabolism/pathology MH - Liver Neoplasms/diagnosis/*diagnostic imaging/surgery MH - Male MH - Positron-Emission Tomography/*methods MH - Proliferating Cell Nuclear Antigen/genetics MH - RNA, Messenger/biosynthesis MH - Radiopharmaceuticals EDAT- 2013/12/04 06:00 MHDA- 2014/09/04 06:00 CRDT- 2013/12/04 06:00 PHST- 2013/09/10 00:00 [received] PHST- 2013/10/25 00:00 [accepted] PHST- 2013/12/04 06:00 [entrez] PHST- 2013/12/04 06:00 [pubmed] PHST- 2014/09/04 06:00 [medline] AID - 10.3892/or.2013.2886 [doi] PST - ppublish SO - Oncol Rep. 2014 Feb;31(2):701-6. doi: 10.3892/or.2013.2886. Epub 2013 Nov 29.