Conventional cytogenetic characterization of a new cell line, ACP01, established from a primary human gastric tumor
Braz. j. med. biol. res
;
37(12): 1831-1838, Dec. 2004. ilus, tab
Article
in English
| LILACS
| ID: lil-388056
RESUMO
Gastric cancer is the second most frequent type of neoplasia and also the second most important cause of death in the world. Virtually all the established cell lines of gastric neoplasia were developed in Asian countries, and western countries have contributed very little to this area. In the present study we describe the establishment of the cell line ACP01 and characterize it cytogenetically by means of in vitro immortalization. Cells were transformed from an intestinal-type gastric adenocarcinoma (T4N2M0) originating from a 48-year-old male patient. This is the first gastric adenocarcinoma cell line established in Brazil. The most powerful application of the cell line ACP01 is in the assessment of cytotoxicity. Solid tumor cell lines from different origins have been treated with several conventional and investigational anticancer drugs. The ACP01 cell line is triploid, grows as a single, non-organized layer, similar to fibroblasts, with focus formation, heterogeneous division, and a cell cycle of approximately 40 h. Chromosome 8 trisomy, present in 60 percent of the cells, was the most frequent cytogenetic alteration. These data lead us to propose a multifactorial triggering of gastric cancer which evolves over multiple stages involving progressive genetic changes and clonal expansion.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Stomach Neoplasms
/
Adenocarcinoma
/
Cytogenetic Analysis
/
Cell Line, Tumor
Limits:
Humans
/
Male
Language:
English
Journal:
Braz. j. med. biol. res
Journal subject:
Biology
/
Medicine
Year:
2004
Type:
Article
/
Project document
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal de São Paulo/BR
/
Universidade Federal do Pará/BR
/
Universidade de São Paulo/BR
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