Establishment of cell clones with different metastatic potential from the metastatic hepatocellular carcinoma cell line MHCC97
Open Access
- 1 January 2001
- journal article
- Published by Baishideng Publishing Group Inc. in World Journal of Gastroenterology
- Vol. 7 (5), 630-636
- https://doi.org/10.3748/wjg.v7.i5.630
Abstract
AIM: To establish clone cells with different metastatic potential for the study of metastasis-related mechanisms. METHODS: Cloning procedure was performed on parental hepatocellular carcinoma (HCC) cell line MHCC97, and biological characteristics of the target clones selected by in vivo screening were studied. RESULTS: Two clones with high (MHCC97-H) and low (MHCC97-L) metastatic potential were isolated from the parent cell line. Compared with MHCC97-L, MHCC97-H had smaller cell size (average cell diameter 43 μm vs 50 μm) and faster in vitro and in vivo growth rate (tumor cell doubling time was 34.2 h vs 60.0 h). The main ranges of chromosomes were 55-58 in MHCC97-H and 57-62 in MHCC97-L. Boyden chamber in vitro invasion assay demonstrated that the number of penetrating cells through the artificial basement membrane was (37.5 ± 11.0) cells/field for MHCC97-H vs (17.7 ± 6.3)/field for MHCC97-L. The proportions of cells in G0-G1 phase, S phase, and G2-M phase for MHCC97-H/MHCC97-L were 0.56/0.65, 0.28/0.25 and 0.16/0.10, respectively, as measured by flow cytometry. The serum AFP levels in nude mice 5 wk after orthotopic implantation of tumor tissue were (246 ± 66) μg•L¯¹ for MHCC97-H and (91 ± 66) μg•L¯¹ for MHCC97-L. The pulmonary metastatic rate was 100% (10/10) vs 40% (4/10). CONCLUSION: Two clones of the same genetic background but with different biological behaviors were established, which could be valuable models for investigation on HCC metastasis.Keywords
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