Uptake of positron emission tomography tracers reflects the tumor immune status in esophageal squamous cell carcinoma

The relationship between the local immune status and cancer metabolism regarding 18F‐FDG and 18F‐FAMT uptake in esophageal squamous cell carcinoma (ESCC) remains unknown. The present study examined the correlations between tumor immune status, clinicopathological factors, and positron emission tomog...

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Veröffentlicht in:Cancer science 2020-06, Vol.111 (6), p.1969-1978
Hauptverfasser: Kuriyama, Kengo, Higuchi, Tamami, Yokobori, Takehiko, Saito, Hideyuki, Yoshida, Tomonori, Hara, Keigo, Suzuki, Shigemasa, Sakai, Makoto, Sohda, Makoto, Higuchi, Tetsuya, Tsushima, Yoshito, Asao, Takayuki, Kaira, Kyoichi, Kuwano, Hiroyuki, Shirabe, Ken, Saeki, Hiroshi
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Sprache:eng
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Zusammenfassung:The relationship between the local immune status and cancer metabolism regarding 18F‐FDG and 18F‐FAMT uptake in esophageal squamous cell carcinoma (ESCC) remains unknown. The present study examined the correlations between tumor immune status, clinicopathological factors, and positron emission tomography (PET) tracer uptake in ESCC. Forty‐one ESCC patients who underwent 18F‐FDG PET and 18F‐FAMT PET before surgery were enrolled in the study. Immunohistochemistry was conducted for programmed death 1 (PD‐1), CD8, Ki‐67, CD34, GLUT1 (18F‐FDG transporter) and LAT1 (18F‐FAMT transporter). ESCC specimens with high tumoral PD‐L1 and high CD8‐positive lymphocytes were considered to have “hot tumor immune status.” High PD‐L1 expression (53.7%) was significantly associated with tumor/lymphatic/venous invasion (P = 0.028, 0.032 and 0.018), stage (P = 0.041), CD8‐positive lymphocytes (P 
ISSN:1347-9032
1349-7006
DOI:10.1111/cas.14421