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Establishment of Highly Tumorigenic Human Gastric Carcinoma Cell Lines from Xenograft Tumors in Mice

  • Song, Kyung-A (Philips Institute for Oral Health Research, Virginia Commonwealth University School of Dentistry) ;
  • Park, Jihyun (Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University) ;
  • Kim, Ha-Jung (Department of Medicine, Division of Hematology-Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Kang, Myung Soo (Institute of Life Technology, Intron Biotechnology Inc.) ;
  • Kim, Sun Young (Department of Medicine, Division of Hematology-Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine)
  • Received : 2017.07.19
  • Accepted : 2017.08.24
  • Published : 2017.09.30

Abstract

Patient's primary tumor-derived tumor cell lines likely represent ideal tools for human tumor biology in vitro and in vivo. Here, we describe eight human gastric carcinoma cell lines derived from established tumors in vivo upon subcutaneous transplantation of primary gastric carcinoma specimens in BALB/c nude mice. These xenografted gastric tumor cell lines (GTX) displayed close similarity with primary gastric tumor tissues in their in vivo growth pattern and genomic alterations. GTX-085 cells were resistant to cisplatin, while GTX-087 was the most sensitive cell line. GTX-085 was the only cell line showing a metastatic potential. Epithelial cell adhesion molecule (EPCAM) expression was especially strong in all tissue samples, as well as in cell cultures. GTX-139, the largest tumor graft obtained after injection, displayed distinct expression of CD44v6, fibroblast growth factor receptor 2 (FGFR2), and prominin 1 (PROM1, also known as CD133). In summary, we established eight xenograft gastric cancer cell lines from gastric cancer patient tissues, with their histological and molecular features consistent with those of the primary tumors. The established GTX cell lines will enable future studies of their responses to various treatments for gastric cancer.

Keywords

References

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