Establishment and characterization of amylase-producing lung adenocarcinoma cell line, IMEC-2

Hiroshi Yokouchi*, Koichi Yamazaki, Hajime Asahina, Masahiko Shigemura, Takanori Moriyama, Kazuo Takaoka, Jun Moriya, Tomoo Itoh, Ichiro Kinoshita, Hirotoshi Dosaka-Akita, Yutaka Tsutsumi, Masaharu Nishimura

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Background: Few studies have successfully established an amylase-producing lung cancer cell line or have examined its cytological, biochemical and biological features. Patients and Methods: Cancer cells, isolated from pleural effusion using a gradient method, were cultivated. Results: Amylase production from the newly established cell line was confirmed by positive staining for α-amylase and increased amylase levels in the culture supernatant. Electron microscopy revealed zymogen granule-like structures. Sialylation of salivary-type amylase was confirmed directly from the cell line by examining the neuraminidase sensitivity and amylase elution profile under high-performance liquid chromatography. Neither EGFR or KRAS mutation were found. Conclusion: This cell line offers a useful tool for analyzing the pathogenesis and pathophysiology of amylase-producing lung cancers. Moreover, it might be useful for probing the metastasis and invasiveness of lung cancer cells and for developing an early diagnostic method based on sialylated salivary-amylase production.

Original languageEnglish (US)
Pages (from-to)2821-2827
Number of pages7
JournalAnticancer research
Issue number4 B
StatePublished - Jul 2006


  • Amylase
  • Cell line
  • IMEC-2
  • Lung cancer
  • Sialylation

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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