PMID- 12697968 OWN - NLM STAT- MEDLINE DCOM- 20030507 LR - 20171101 IS - 0030-2414 (Print) IS - 0030-2414 (Linking) VI - 64 IP - 3 DP - 2003 TI - Expression of vascular endothelial growth factor and angiogenesis in gastrointestinal stromal tumor of the stomach. PG - 266-74 AB - Vascular endothelial growth factor (VEGF) is associated with the malignant potential of several types of carcinoma. The aim of this study was to elucidate the clinical significance of VEGF expression in gastrointestinal stromal tumor (GIST). METHODS: Specimens obtained from 53 patients who had underwent surgical resection for GIST of the stomach were used in this study. Specimens were examined immunohistochemically for VEGF expression and Ki-67 expression. Tumor microvessel density (MVD) was determined immunohistochemically with anti-CD31 antibody, and was estimated by averaging the counts from three high-power fields in the area showing the greatest neovascularization. RESULTS: VEGF expression was detected in 14 (26.4%) of the 53 lesions and correlated significantly with tumor size, liver metastasis, Ki-67 labeling index, and MVD. Prognosis was significantly poorer than in patients with tumors expressing VEGF than in patients with tumors lacking VEGF expression. Multiple logistic regression analysis for 10-year survival showed VEGF expression and high mitotic rate to be independent predictor of a poor outcome. CONCLUSIONS: Angiogenesis associated with VEGF may play an important role in the progression of GIST. VEGF expression may serve as an indicator of a poor prognosis. CI - Copyright 2003 S. Karger AG, Basel FAU - Takahashi, Ryoji AU - Takahashi R AD - First Department of Internal Medicine, Hiroshima University School of Medicine, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan. FAU - Tanaka, Shinji AU - Tanaka S FAU - Kitadai, Yasuhiko AU - Kitadai Y FAU - Sumii, Masaharu AU - Sumii M FAU - Yoshihara, Masaharu AU - Yoshihara M FAU - Haruma, Ken AU - Haruma K FAU - Chayama, Kazuaki AU - Chayama K LA - eng PT - Journal Article PL - Switzerland TA - Oncology JT - Oncology JID - 0135054 RN - 0 (Endothelial Growth Factors) RN - 0 (Intercellular Signaling Peptides and Proteins) RN - 0 (Ki-67 Antigen) RN - 0 (Lymphokines) RN - 0 (Vascular Endothelial Growth Factor A) RN - 0 (Vascular Endothelial Growth Factors) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Endothelial Growth Factors/*analysis MH - Female MH - Gene Expression Regulation, Neoplastic MH - Humans MH - Immunohistochemistry MH - In Situ Hybridization MH - Intercellular Signaling Peptides and Proteins/*analysis MH - Ki-67 Antigen/analysis MH - Logistic Models MH - Lymphokines/*analysis MH - Male MH - Microcirculation MH - Middle Aged MH - Mitotic Index MH - Multivariate Analysis MH - Neovascularization, Pathologic/*metabolism MH - Predictive Value of Tests MH - Prognosis MH - Stomach Neoplasms/*blood supply/*chemistry/pathology MH - *Stromal Cells MH - Survival Analysis MH - Vascular Endothelial Growth Factor A MH - Vascular Endothelial Growth Factors EDAT- 2003/04/17 05:00 MHDA- 2003/05/08 05:00 CRDT- 2003/04/17 05:00 PHST- 2003/04/17 05:00 [pubmed] PHST- 2003/05/08 05:00 [medline] PHST- 2003/04/17 05:00 [entrez] AID - 69316 [pii] AID - 10.1159/000069316 [doi] PST - ppublish SO - Oncology. 2003;64(3):266-74. doi: 10.1159/000069316.