Abstract:
:Signet ring cell gastric cancer (SRCGC) has very poor prognosis worldwide, and studying its molecular characteristics is urgent for improving the outcome. However, few well-characterized SRCGC cell lines are available for research. Therefore, we established a novel cell line GCSR1, from a Chinese male SRCGC patient. Cell morphology of GCSR1 in culture, maintained in vitro for over 90 passages, is similar to the cells from the patient. GCSR1 cells proliferated in vitro with a doubling time of 67.65 h. Karyotyping showed they were aneuploid. Missense mutation occurred in codon 193 of P53 and deletion occurred in exons 1 and 3 of P16. Results of CCK8 assay revealed that GCSR1 was more resistant to 5-fluorouracil (5-FU) and mitomycin (MMC) than other gastric cancer cell lines. Stem cell marker assay by flow cytometry showed that GCSR1 had high proportion of CD44+ and/or CD133+ cells. It formed colonies easily in soft agar and generated xenograft tumors in nude mice. In conclusion, GCSR1 is a well-established, well-characterized multi-drug resistant cell line with abundant cancer stem cells.
journal_name
Int J Oncoljournal_title
International journal of oncologyauthors
Xu X,Qian LJ,Su XY,He KF,Jin KT,Gu LH,Feng JG,Li GL,Zhou Q,Xu ZZ,Wang HH,Zhang J,Cao J,Teng LSdoi
10.3892/ijo.2015.2966subject
Has Abstractpub_date
2015-01-01 00:00:00pages
2479-87issue
6eissn
1019-6439issn
1791-2423journal_volume
46pub_type
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