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Original Articles
- Differential Expression of Glut1 in Pulmonary Neuroendocrine Tumors: Correlation with Histological Grade.
- Hyun Ju Lee, Seol Bong Yoo, Won Woo Lee, Doo Hyun Chung, Jeong Wook Seo, Jin Haeng Chung
- Korean J Pathol. 2009;43(3):201-205.
- DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.3.201
- 4,299 View
- 39 Download
- 2 Crossref
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Abstract
PDF - BACKGROUND
Increased glucose uptake, a process that is mediated by glucose transporter (Glut1) proteins, is an important metabolic feature in a variety of cancer cells. The overexpression of Glut1 in human cancers is known to be related to a variety of histopathological parameters, including histological grade, proliferation rate, and lymphatic invasion. The principal objective of this study was to evaluate Glut1 expression in the spectrum of pulmonary neuroendocrine (NE) tumors including typical carcinoid tumor (TC), atypical carcinoid tumor (AC), large cell neuroendocrine carcinoma (LCNEC), and small cell carcinoma (SCC), and to characterize the relationship between Glut1 expression and the histologic grade of NE tumors.
METHODS
19 TC, 7 AC, 13 LCNEC, and 6 SCC patients were included in this study. The percentages of Glut1-positive tumor cells in these patients were determined. For statistical analysis, Glut1 expression was subdivided into a Glut1-low expression group (0-30%) and a Glut1-high expression group (31-90%).
RESULTS
In our subgroup analyses, the histological grade of pulmonary neuroendocrine (NE) tumors was significantly correlated with Glut1 expression; TC (n=19, 3.6+/-4.2%), AC (n=7, 20.0+/-4.9%), LCNEC (n=13, 60.0+/-21.1%), and SCC (n=6, 74.2+/-16.9%). Glut1-high expression was significantly associated with high-grade NE tumors such as LCNEC and SCC (n=19, 62.6+/-21.0%) (p=0.000).
CONCLUSIONS
The results of this study appear to indicate that Glut1 overexpression is a consistent feature of high-grade NE lung tumors. -
Citations
Citations to this article as recorded by
- GLUT1: A novel tool reflecting proliferative activity of lung neuroendocrine tumors?
Nazim Benzerdjeb, Pascal Berna, Henri Sevestre
Pathology International.2017; 67(1): 32. CrossRef - Oncocytic carcinoid tumor of the lung with intense F-18 fluorodeoxyglucose (FDG) uptake in positron emission tomography–computed tomography (PET/CT)
Yuki Tanabe, Yoshifumi Sugawara, Rieko Nishimura, Kohei Hosokawa, Makoto Kajihara, Teruhiko Shimizu, Tadaaki Takahashi, Shinya Sakai, Shigeki Sawada, Motohiro Yamashita, Haruhiko Ohtani
Annals of Nuclear Medicine.2013; 27(8): 781. CrossRef
- GLUT1: A novel tool reflecting proliferative activity of lung neuroendocrine tumors?
- Expression of the GLUT1 and p53 Protein in Atypical Mucosal Lesions Obtained from Gastric Biopsy Specimens.
- In Gu Do, Youn Wha Kim, Yong Koo Park
- Korean J Pathol. 2006;40(1):32-38.
- 1,782 View
- 16 Download
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Abstract
PDF
- BACKGROUND
The diagnosis of atypical mucosal lesions by performing hematoxylin-eosin staining is too subjective, and it is also subject to considerable inter-observer variation. There is a need for reliable immunohistochemical markers that can give reproducible results and that are not subject to individual interpretation.
METHODS
We reviewed a total of 199 cases of gastric biopsy specimens, which were all diagnosed as atypical mucosal lesions, and 124 cases of the adenocarcinomas specimens had been classified from category 1 (C1) to C5 according to the Vienna classification. We also examined the immunohistochemical expressions of the glucose transporter GLUT1 and the p53 protein in the gastric biopsy specimens to determine if they were useful markers for differentiatial diagnosis under the Vienna classifications.
RESULTS
None of the specimens in categories C1 to C3 showed GLUT1 expression, but 10.1% of the C4 specimens and 25.0% of the C5 specimens were GLUT1-positive (p<0.05). The expression of p53 was undetectable in the C1 specimens, but this was expressed in 2.9% of the C2 specimens, 15.6% of the C3 specimens, 37.8% of the C4 specimens, and 65.3% of the C5 specimens (p<0.05).
CONCLUSIONS
The Vienna classification is very applicable to the gastric biopsy specimens of the atypical mucosal lesions, and the GLUT1 and p53 expressions are candidates as highly useful markers to differentiate the Vienna C4 lesions from the C3 and C5 lesions.
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