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Ann Thorac Surg 2000;70:1634-1640
© 2000 The Society of Thoracic Surgeons

Original articles: general thoracic

Accelerated growth signals and low tumor-infiltrating lymphocyte levels predict poor outcome in T4 esophageal squamous cell carcinoma

Masahiro Yasunaga, MDa, Yoichi Tabira, MDa, Kanyu Nakano, MDa, Shinichi Iida, MDa, Nobuuki Ichimaru, MDa, Nobuhide Nagamoto, MDa, Tomonori Sakaguchi, MDa

a First Department of Surgery, School of Medicine, Kumamoto University, Kumamoto, Japan

Address reprint requests to Dr Yasunaga, First Department of Surgery, School of Medicine, Kumamoto University, Honjo 111, Kumamoto, Japan

Background. Little is known about the biological nature of T4 esophageal carcinoma growth signals and host defenses.

Methods. Paraffin-embedded sections from 78 patients with T2 to T4 esophageal squamous cell carcinoma who underwent operation were analyzed with immunohistochemistry.

Results. Positive cyclin A showed a significantly greater increase in T4 tumors than in those of other stages, and negative p27 showed a significantly greater decrease in T4 tumors than in large T3 stage tumors (tumor size >= 4.0 cm). Patients with low-grade tumor-infiltrating lymphocyte (TIL) density showed a significantly greater decrease in T4 than in T2. The combination of p27 and cyclin A was a significant independent prognostic factor among T and N factors in multivariate analysis. TIL density was an independent prognostic factor among immunonutritional variables such as serum albumin concentration and the number of total blood lymphocytes.

Conclusions. T4 esophageal squamous cell carcinoma has a poor prognosis, which is associated with increased p27-negative and cyclin A-positive growth signals in the tumor and with low TIL density in the host.






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