Rapid immunocytochemistry based on alternating current electric field using squash smear preparation of central nervous system tumors

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• 作者：Jun Moriya ; Mishie Ann Tanino ; Tomoko Takenami ; Tomoko Endoh…
• 关键词：Central nervous system (CNS) tumor ; Intraoperative diagnosis ; Squash smear ; Immunocytochemistry (ICC) ; Immunohistochemistry (IHC)
• 刊名：Brain Tumor Pathology
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：33
• 期：1
• 页码：13-18
• 全文大小：1,493 KB
• 参考文献：1.Westphal M, Hilt DC, Bortey E et al (2003) A phase 3 trial of local chemotherapy with biodegradable carmustine (BCNU) wafers (Gliadel wafers) in patients with primary malignant glioma. Neuro Oncol 5(2):79–88PubMed PubMedCentral
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• 作者单位：Jun Moriya (1)
  Mishie Ann Tanino (1)
  Tomoko Takenami (1)
  Tomoko Endoh (1)
  Masana Urushido (1)
  Yasutaka Kato (1)
  Lei Wang (2)
  Taichi Kimura (2)
  Masumi Tsuda (1)
  Hiroshi Nishihara (2)
  Shinya Tanaka (1) (2)
  R-IHC Study Group
  
  1. Department of Cancer Pathology, Hokkaido University Graduate School of Medicine, N15W7, Kita-ku, Sapporo, 060-8638, Japan
  2. Department of Translational Pathology, Hokkaido University Graduate School of Medicine, N15W7, Kita-ku, Sapporo, 060-8638, Japan
  
• 刊物主题：Neurosurgery; Neurology; Pathology; Oncology; Cancer Research;
• 出版者：Springer Japan
• ISSN：1861-387X

文摘

The role of intraoperative pathological diagnosis for central nervous system (CNS) tumors is crucial for neurosurgery when determining the surgical procedure. Especially, treatment of carmustine (BCNU) wafers requires a conclusive diagnosis of high-grade glioma proven by intraoperative diagnosis. Recently, we demonstrated the usefulness of rapid immunohistochemistry (R-IHC) that facilitates antigen–antibody reaction under alternative current (AC) electric field in the intraoperative diagnosis of CNS tumors; however, a higher proportion of water and lipid in the brain parenchyma sometimes leads to freezing artifacts, resulting in poor quality of frozen sections. On the other hand, squash smear preparation of CNS tumors for cytology does not affect the frozen artifacts, and the importance of smear preparation is now being re-recognized as being better than that of the tissue sections. In this study, we established the rapid immunocytochemistry (R-ICC) protocol for squash smears of CNS tumors using AC electric field that takes only 22 min, and demonstrated its usefulness for semi-quantitative Ki-67/MIB-1 labeling index and CD 20 by R-ICC for intraoperative diagnosis. R-ICC by AC electric field may become a substantial tool for compensating R-IHC and will be applied for broad antibodies in the future. Keywords Central nervous system (CNS) tumor Intraoperative diagnosis Squash smear Immunocytochemistry (ICC) Immunohistochemistry (IHC)