PMID- 18373164 OWN - NLM STAT- MEDLINE DCOM- 20080617 LR - 20211020 IS - 0944-1174 (Print) IS - 0944-1174 (Linking) VI - 43 IP - 3 DP - 2008 TI - Monocyte chemoattractant protein 1 and CD40 ligation have a synergistic effect on vascular endothelial growth factor production through cyclooxygenase 2 upregulation in gastric cancer. PG - 216-24 LID - 10.1007/s00535-007-2151-8 [doi] AB - BACKGROUND: Recent studies have reported that expression of monocyte chemoattractant protein 1 (MCP-1) and its receptor (CCR2) and CD40 ligation on mesenchymal cells play important roles in tumor development. Cyclooxygenase 2 (COX-2) has also been shown to contribute to tumor angiogenesis. We examined the interaction between MCP-1 and CD40 ligation in mesenchymal cells in gastric cancer to determine the effect of these factors on vascular endothelial growth factor (VEGF) production via upregulation of COX-2 expression. METHODS: COX-2, prostaglandin E2 (PGE2), and VEGF production were evaluated in CD40 ligand (CD40L)-stimulated macrophages. CD40L and MCP-1 mRNA levels in gastric cancer tissues were evaluated by real-time polymerase chain reaction (PCR). Localizations of MCP-1, CD40L, CD34, CD40, and CCR2 in 34 gastric cancer tissue specimens were evaluated by single-or double-label immunohistochemistry. RESULTS: COX-2 expression levels were significantly higher in CD40L-stimulated macrophages and correlated with increased PGE2 and VEGF production. Addition of MCP-1 to CD40L-stimulated macrophages had a synergistic effect on COX-2 expression and subsequent PGE2 and VEGF production. CD40L and MCP-1 mRNA levels were significantly higher in poorly differentiated gastric cancers than in H. pylori-infected gastritis patients. High microvessel density was significantly associated with MCP-1 and CCR2 scores and lymph node metastasis. CONCLUSIONS: MCP-1 and CD40L had a synergistic effect on COX-2 expression and subsequent VEGF production in gastric cancer. FAU - Futagami, Seiji AU - Futagami S AD - Division of Gastroenterology, Department of Internal Medicine, Nippon Medical School, 1-1-5 Sendagi, Tokyo, 113-8603, Japan. FAU - Tatsuguchi, Atsushi AU - Tatsuguchi A FAU - Hiratsuka, Tetsuro AU - Hiratsuka T FAU - Shindo, Tomotaka AU - Shindo T FAU - Horie, Akane AU - Horie A FAU - Hamamoto, Tatsuhiko AU - Hamamoto T FAU - Ueki, Nobue AU - Ueki N FAU - Kusunoki, Masafumi AU - Kusunoki M FAU - Miyake, Kazumasa AU - Miyake K FAU - Gudis, Katya AU - Gudis K FAU - Tsukui, Taku AU - Tsukui T FAU - Sakamoto, Choitsu AU - Sakamoto C LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080329 PL - Japan TA - J Gastroenterol JT - Journal of gastroenterology JID - 9430794 RN - 0 (CCR2 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (RNA, Messenger) RN - 0 (Receptors, CCR2) RN - 0 (Vascular Endothelial Growth Factor A) RN - 147205-72-9 (CD40 Ligand) RN - EC 1.14.99.1 (Cyclooxygenase 2) SB - IM MH - Adenocarcinoma/pathology MH - Adult MH - Aged MH - CD40 Ligand/*metabolism MH - Chemokine CCL2/*metabolism MH - Cyclooxygenase 2/genetics/*metabolism MH - Female MH - Gastritis/microbiology/pathology MH - Humans MH - Immunohistochemistry MH - Lymphatic Metastasis MH - Macrophages/metabolism MH - Male MH - Mesoderm/cytology/pathology MH - Middle Aged MH - Polymerase Chain Reaction MH - RNA, Messenger/metabolism MH - Receptors, CCR2/metabolism MH - Stomach Neoplasms/*pathology MH - Up-Regulation MH - Vascular Endothelial Growth Factor A/*metabolism EDAT- 2008/04/01 09:00 MHDA- 2008/06/18 09:00 CRDT- 2008/04/01 09:00 PHST- 2007/03/29 00:00 [received] PHST- 2007/12/24 00:00 [accepted] PHST- 2008/04/01 09:00 [pubmed] PHST- 2008/06/18 09:00 [medline] PHST- 2008/04/01 09:00 [entrez] AID - 10.1007/s00535-007-2151-8 [doi] PST - ppublish SO - J Gastroenterol. 2008;43(3):216-24. doi: 10.1007/s00535-007-2151-8. Epub 2008 Mar 29.