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Relationship between Expression of Vascular Endothelial Growth Factor in Tumor Tissue from Gastric Cancers and Chemotherapy Effects: Comparison between S-1 alone and the Combination of S-1 plus CDDP
- Source :
- Japanese Journal of Clinical Oncology. 37:509-514
- Publication Year :
- 2007
- Publisher :
- Oxford University Press (OUP), 2007.
-
Abstract
- Background: We have reported that vascular endothelial growth factor (VEGF) expression in gastric cancers might be a selective marker between 5-fluorouracil (5-FU) and a combination of 5-FU plus cisplatin (CDDP). In this study, the relationship between VEGF expression and effects of S-1 with and without CDDP is investigated. Methods: The subjects were 44 patients treated with S-1 (40 mg/m 2 , twice daily, days 1‐28, repeated every 6 weeks) and 24 patients treated with S-1 plus CDDP (S-1 40 mg/m 2 ,t wice daily, days 1‐21, CDDP, 60 or 70 mg/m 2 , day 8, repeated every 5 weeks). VEGF expression in pretreatment endoscopic biopsy samples was assessed immunohistochemically. Results: Median survival times (MST) of the patients treated with S-1 and S-1 plus CDDP were 344 and 388 days. Among evaluable patients, the response rates of patients with VEGF (þ )a nd (2) tumors to S-1 were 40% (6/15) and 54% (13/24), and to S-1 plus CDDP, 79% (15/19) and 80% (4/5). While the survival of patients with VEGF (2) tumors was slightly longer than those with VEGF (þ) tumors in the S-1 group (MST, 425 versus 308 days, P ¼ 0.42), patients with VEGF (þ) tumors survived remarkably longer than those with VEGF (2) tumors in the S-1 plus CDDP group (MST, 570 versus 333 days, P ¼ 0.19). Conclusion: Similarly to our previous study, it is suggested that the effects of adding CDDP to S-1 might be more remarkable in gastric cancer patients with VEGF (þ) tumors than in those with VEGF (2) tumors. These results should be confirmed in a large phase III study.
- Subjects :
- Vascular Endothelial Growth Factor A
Antimetabolites, Antineoplastic
Cancer Research
medicine.medical_specialty
Pathology
Gastroenterology
chemistry.chemical_compound
Stomach Neoplasms
Internal medicine
Antineoplastic Combined Chemotherapy Protocols
Chemotherapy effects
Biomarkers, Tumor
Humans
Medicine
Radiology, Nuclear Medicine and imaging
Tegafur
Cisplatin
business.industry
Endoscopic biopsy
Cancer
General Medicine
Middle Aged
medicine.disease
Immunohistochemistry
Tumor tissue
Vascular endothelial growth factor
Drug Combinations
Oxonic Acid
Vascular endothelial growth factor A
Oncology
chemistry
Fluorouracil
business
medicine.drug
Subjects
Details
- ISSN :
- 14653621 and 03682811
- Volume :
- 37
- Database :
- OpenAIRE
- Journal :
- Japanese Journal of Clinical Oncology
- Accession number :
- edsair.doi.dedup.....eb2acbae5d2133fadafc6db1eddbab10