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- W1976355989 abstract "We evaluated the effectiveness of targeted cytotoxic analog of somatostatin (SST) AN-238, consisting of 2-pyrrolinodoxorubicin (AN-201) linked covalently to SST octapeptide carrier RC-121 in DU-145 human androgen-independent prostate cancers xenografted into nude mice. We also investigated the expression of mRNAs for SST receptor subtypes 2A and 5 (sst2A and sst5) in DU-145 tumors. After 8 weeks of treatment, AN-238 practically arrested the proliferation of DU-145 cancers. The tumor volume in nude mice that received 4 injections of AN-238 at the dose of 150 nmol/kg was 63.4+/-6.7 mm3, nearly 4 times smaller than that in controls which measured 249.1+/-36.3 mm3 (p<0.001). Treatment with AN-238 lowered tumor weight by 68% (p<0.01) compared with the control group and extended the tumor volume doubling time to 184.1+/-69.4 days, versus 32.1+/-6.6 days in controls (p<0.05). No toxicity-related deaths occurred during treatment with AN-238. Cytotoxic radical AN-201 administered alone or in an unconjugated mixture with carrier RC-121 inhibited the growth of DU-145 tumors only after the third and fourth injection and was toxic. The expression of mRNA for sst2A and sst5 was detected in all specimens of control DU-145 tumors and in tumors treated with AN-238. The present study demonstrates the high efficacy of SST-receptor-targeted chemotherapy in a model of human androgen-independent prostatic carcinoma." @default.
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- W1976355989 date "2002-02-01" @default.
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- W1976355989 title "Effective treatment of experimental DU-145 prostate cancers with targeted cytotoxic somatostatin analog AN-238" @default.
- W1976355989 doi "https://doi.org/10.3892/ijo.20.2.397" @default.
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