Abstract | PURPOSE: EXPERIMENTAL DESIGN:
AN-238 and AN-201 were administered i.v. to nude mice bearing SW-1990 pancreatic cancers. Tumor growth reduction and survival were analyzed, and cell proliferation and apoptosis were determined with histological methods. The effects of repeated administration of AN-238 and AN-201 were also evaluated on xenografted Panc-1, MiaPaCa-2, CFPAC-1, Capan-1, and Capan-2 pancreatic cancers. The expression of mRNA for SSTR subtypes 2A, 3, and 5 in tumors was analyzed by reverse transcription-PCR, and binding assays were performed. RESULTS: All of the cancer models except MiaPaCa-2 displayed functional receptors for SST. SW-1990 expressed mRNA for SSTR subtypes 3 and 5, whereas various patterns of subtypes 2A, 3, and 5 were found in other pancreatic cancers. Repeated administration of AN-238 at 150 nmol/kg significantly inhibited growth of SW-1990 cancers (93% after 45 days; P = 0.016) and other tumors but not MiaPaCa-2. AN-201 was toxic and less effective. The efficacy of AN-238 was consistent with SSTR expression. CONCLUSIONS:
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Authors | K Szepeshazi, A V Schally, G Halmos, B Sun, F Hebert, B Csernus, A Nagy |
Journal | Clinical cancer research : an official journal of the American Association for Cancer Research
(Clin Cancer Res)
Vol. 7
Issue 9
Pg. 2854-61
(Sep 2001)
ISSN: 1078-0432 [Print] United States |
PMID | 11555603
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, Non-P.H.S.)
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Chemical References |
- AN 238
- Antibiotics, Antineoplastic
- Pyrroles
- RNA, Messenger
- Receptors, Somatostatin
- somatostatin receptor 3
- Doxorubicin
- somatostatin receptor 5
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Topics |
- Animals
- Antibiotics, Antineoplastic
(metabolism, therapeutic use)
- Binding, Competitive
- Cell Division
(drug effects)
- Doxorubicin
(analogs & derivatives, metabolism, therapeutic use)
- Gene Expression Regulation, Neoplastic
- Humans
- Male
- Mice
- Mice, Nude
- Neoplasms, Experimental
(drug therapy, genetics, metabolism)
- Pancreatic Neoplasms
(drug therapy, genetics, metabolism)
- Pyrroles
(metabolism, therapeutic use)
- RNA, Messenger
(drug effects, genetics, metabolism)
- Receptors, Somatostatin
(genetics, metabolism)
- Survival Analysis
- Time Factors
- Tumor Cells, Cultured
- Xenograft Model Antitumor Assays
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