Atsushi Nagano
Yokohama City University
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Featured researches published by Atsushi Nagano.
Breast Cancer | 2000
Akira Yoshida; Yoshiyasu Nakamura; Akio Shimizu; Masaoki Harada; Youichi Kameda; Atsushi Nagano; Masaaki Inaba; Taro Asaga
BackgroundParathyroid hormone-related protein (PTHrP) is produced by various neoplasms and is known to be a causative factor of hypercalcemia of malignancy. It has also been suggested to act as a cytokine for tumor progression. The purpose of this study was to clarify the significance of PTHrP expression in breast carcinoma.MethodsPTHrP expression was examined in 177 surgically resected breast carcinoma specimens by immunohistochemistry using a monoclonal antibody against the for PTHrP, The relationship of PTHrP expression with clinicopathological factors was analyzed and the clinical courses of the patients are reported.ResultsPositive PTHrP staining was detected in 113 ( 64%) of the breast tumors. Among the positive cases, 36 (32%) of the tumors clearly showed strong expression. When the PTHrP expression was divided into three categories, a significant positive relationship was found between PTHrP expression and histological grade of tumor. PTHrP expression was also significantly related to bone metastasis but the staining degree of PTHrP was not. The patients with positive PTHrP tended to have poor outcome in proportion to the staining degree. Univariate analysis demonstrated a significantly shorter overall survival for patients expressing PTHrP, and in multivariate analysis showed that PTHrP status and nodal status were associated with a significantly shorter overall survival.ConclusionOur results suggest that PTHrP expression is not only correlated with bone metastasis but is also related to the progression of breast carcinoma, and that overexpression of PTHrP may be a potential prognostic factor for human breast carcinoma.
Surgery Today | 1998
Toshio Imada; Hideyuki Sato; Kimiatsu Hasuo; Atsushi Nagano
It is well known that squamous cell carcinoma of the esophagus can be associated with carcinoma of other organs. We report herein the rare case of a 60-year-old man who developed sychronous bilateral lung cancers after undergoing esophagectomy for esophageal cancer. Staged bilateral lobectomy was successfully performed to minimize respiratory complications 3 years after his esophagectomy. This case report serves to demonstrate that aggressive and careful surgical approach with adquate followup offers the chance of long-term survival for patients with multiple primary cancers.
Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2003
Ten'i Godai; Atsushi Nagano; Jun Fujisawa; Hiroshi Matsukawa; Satoru Shimizu; Yasuhiko Tomita
Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2003
Norio Yukawa; Atsushi Nagano; Jun Fujisawa; Hiroshi Matsukawa; Satoru Shimizu; Yasuhiko Tomita
Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2006
Masahiro Kanari; Jun Fujisawa; Norio Yukawa; Atsushi Nagano; Hiroshi Matsukawa; Naomi Kawano
Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 2001
Norio Yukawa; Daisuke Machida; Masahiro Kanari; Atsushi Nagano; Jun Fujisawa; Hiroshi Matsukawa; Satoru Shimizu; Naomi Kawano; Yasushi Rino
Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 2007
Daisuke Machida; Norio Yukawa; Motohiko Gohda; Masahiro Kanari; Atsushi Nagano; Jun Fujisawa; Hiroshi Matsukawa; Satoru Shimizu; Naomi Kawano; Yasushi Rino
The Journal of The Japanese Association for Chest Surgery | 2005
Atsushi Nagano; Hiroshi Matsukawa
Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2005
Motohiko Goda; Norio Yukawa; Jun Fujisawa; Daisuke Machida; Masahiro Kanari; Atsushi Nagano; Hiroshi Matsukawa; Satoru Shimizu; Yasuhiko Tomita; Yoshinori Takanashi
Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2005
Masahiro Kanari; Jun Fujisawa; Norio Yukawa; Atsushi Nagano; Hiroshi Matsukawa; Satoru Shimizu