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Establishment and characterization of an IGSK-2 cell line derived from ascitic fluid of recurrent hCG and somatostatin secreted adenocarcinoma of the stomach

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Abstract

We examined a 32-year-old Japanese man who was clinically diagnosed with gastric cancer, type 4, and histopathologically diagnosed with mucinous and poorly differentiated adenocarcinoma (mucinous > poorly) of the stomach. We successfully established and characterized a cell line (designated as IGSK-2) derived from the ascitic fluid of the patient with recurrent and cisplatin-resistant carcinoma. The IGSK-2 cells grew in multi-layered culture in culture dishes. The cells secreted 1 8 pg/mL somatostatin, 9.1 mIU/mL human chorionic gonadotrophin (hCG), 8000 U/mL carbohydrate antigen 19-9 and 410 ng/mL carcinoembryonic antigen over 4 days of culture. The population doubling time was approximately 83 h. The susceptibility test of anticancer drugs revealed that IGSK-2 cells were sensitive to Taxol, but were not sensitive to cisplatin, 5-fluorouracil and irinotecan. Immunohistochemical staining revealed that the IGSK-2 cells were positive against antihCG antibody and antiserotonin antibody, and negative against antisomatostatin antibody and antigastrin antibody.

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Authors and Affiliations

  1. Department of Anatomy II, Jikei University School of Medicine, 3-25-8, Nishi-shinbashi, Minato-ku, 105-8461, Tokyo, Japan

    Satoshi Ohi, Hisashi Hashimoto, Toshiaki Tachibana, Tetsuya Hirabayashi, Kayoko Sugiyama & Hiroshi Ishikawa

  2. Department of Surgery, Jikei University School of Medicine, Tokyo, Japan

    Naoto Takahashi & Katsuhiko Yanaga

Authors
  1. Satoshi Ohi
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  2. Naoto Takahashi
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  3. Hisashi Hashimoto
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  4. Toshiaki Tachibana
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  5. Tetsuya Hirabayashi
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  6. Kayoko Sugiyama
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  7. Katsuhiko Yanaga
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  8. Hiroshi Ishikawa
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Correspondence to Satoshi Ohi.

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Ohi, S., Takahashi, N., Hashimoto, H. et al. Establishment and characterization of an IGSK-2 cell line derived from ascitic fluid of recurrent hCG and somatostatin secreted adenocarcinoma of the stomach. Hum Cell 20, 52–61 (2007). https://doi.org/10.1111/j.1749-0774.2007.00027.x

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  • DOI: https://doi.org/10.1111/j.1749-0774.2007.00027.x

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