eISSN: 1896-9151
ISSN: 1734-1922
Archives of Medical Science
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SCImago Journal & Country Rank
6/2019
vol. 15
 
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abstract:
Basic research

Effects of vascular endothelial growth factor and epidermal growth factor on biological properties of gastric cancer cells

Chunfeng Li
,
Jian Zheng
,
Yingwei Xue

Arch Med Sci 2019; 15 (6): 1498–1509
Online publish date: 2019/10/07
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Introduction
The exfoliation of exfoliative cells from gastric serosa into the peritoneum is the main cause of peritoneal metastasis, which is the most common form of postoperative recurrence in gastric cancer. This study investigates the effects of vascular endothelial growth factor (VEGF) and epidermal growth factor (EGF) on the biological properties of gastric cancer cells.

Material and methods
mRNA expression of VEGF and EGF in gastric cancer tissues from 80 patients suffering from serosa-infiltrated gastric cancer (T3) was examined. The differences of proliferation, movement, adhesion and invasion among 4 gastric cancer cell lines were analysed. The mRNA expression of EGF, EGFR, VEGF and VEGFR in the gastric cancer cell lines was examined before and after adding endostatin (Endostar) or cetuximab (Erbitux) to observe changes of gastric cancer cells.

Results
mRNA levels of EGF and VEGF in positive exfoliative cytology cases were significantly higher than negative cases (p < 0.05). The biological properties were reduced sequentially in MGC803, HGC27, BGC823 and SGC7901 (p < 0.05). The mRNA expression of EGF, EGFR, VEGF and VEGFR was the strongest in MGC803, but was attenuated significantly after treatment (p < 0.05).

Conclusions
Lower survival was related to positive exfoliative cytology, lymphatic node metastasis, serosa-infiltrated and poorly differentiated gastric cancer. The expression of VEGF and EGF was correlated with the properties of gastric cancer cells. Specific inhibition of VEGF and EGF may impair the biological properties of gastric cancer cells in vitro.

keywords:

exfoliative, expression, gastric cancer, growth factor

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