Association between PD-L1 Expression and Metabolic Activity on 18F-FDG PET/CT in Patients with Small-sized Lung Cancer

Kazuki Takada, Gouji Toyokawa, Tetsuzo Tagawa, Kenichi Kohashi, Takaki Akamine, Shinkichi Takamori, Fumihiko Hirai, Fumihiro Shoji, Tatsuro Okamoto, Yoshinao Oda, Yoshihiko Maehara

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Abstract

Aim: We evaluated the metabolic characteristics of small-sized lung cancer using 18F-fluorodeoxyglucose positron-emission tomography/computed tomography (18F-FDG PET/CT) with regard to programmed cell death ligand 1 (PD-L1) expression. Materials and Methods: PD-L1 expression was evaluated by immunohistochemistry with the antibody clone SP142 in 263 patients with surgically resected primary small-sized lung cancer. Specimens with <5% tumor membrane staining were considered negative. We examined the association between the frequency of PD-L1 expression and the maximum standardized uptake value (SUVmax) in preoperative 18F-FDG PET/CT. Results: Among patients with non-small cell lung cancer (NSCLC), the SUVmax was significantly higher in those with PD-L1 expression than in those without (p<0.0001). However, there was no correlation between SUVmax and PD-L1 expression in patients with neuroendocrine tumors (p=0.9638). Multivariate analysis revealed that smoking and a high SUVmax were independent predictors of PD-L1 expression. Conclusion: PD-L1 expression was related to high glucose metabolism in small-sized NSCLC.

Original languageEnglish
Pages (from-to)7073-7082
Number of pages10
JournalAnticancer research
Volume37
Issue number12
DOIs
Publication statusPublished - Jan 1 2017

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Fluorodeoxyglucose F18
Lung Neoplasms
Cell Death
Ligands
Non-Small Cell Lung Carcinoma
Neuroendocrine Tumors
Multivariate Analysis
Clone Cells
Smoking
Immunohistochemistry
Staining and Labeling
Glucose
Membranes
Antibodies
Neoplasms

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

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Association between PD-L1 Expression and Metabolic Activity on 18F-FDG PET/CT in Patients with Small-sized Lung Cancer. / Takada, Kazuki; Toyokawa, Gouji; Tagawa, Tetsuzo; Kohashi, Kenichi; Akamine, Takaki; Takamori, Shinkichi; Hirai, Fumihiko; Shoji, Fumihiro; Okamoto, Tatsuro; Oda, Yoshinao; Maehara, Yoshihiko.

In: Anticancer research, Vol. 37, No. 12, 01.01.2017, p. 7073-7082.

Research output: Contribution to journalArticle

Takada, Kazuki ; Toyokawa, Gouji ; Tagawa, Tetsuzo ; Kohashi, Kenichi ; Akamine, Takaki ; Takamori, Shinkichi ; Hirai, Fumihiko ; Shoji, Fumihiro ; Okamoto, Tatsuro ; Oda, Yoshinao ; Maehara, Yoshihiko. / Association between PD-L1 Expression and Metabolic Activity on 18F-FDG PET/CT in Patients with Small-sized Lung Cancer. In: Anticancer research. 2017 ; Vol. 37, No. 12. pp. 7073-7082.
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