Abstract:
BACKGROUND:Gallbladder cancer is a common and lethal digestive malignancy which is nonsensitive to routine chemotherapy. Doxorubicin (DOX) is one of the major chemotherapeutic drugs for patients with gallbladder cancer. We tried to evaluate if combined use of somatostatin (SST) and DOX could have synergistic effect in the treatment of gallbladder cancer. METHODS:Cells from the human gallbladder cancer cell line GBC-SD were treated with SST. Cell cycle analysis was determined by flow cytometry. Western blot analysis was performed to determine the protein levels of topoisomerase IIalpha (Topo IIalpha) after SST treatment. RT-PCR was utilized to detect SST receptors in GBC-SD cells. Finally, the chemotherapeutic effect of DOX combined with SST treatment on cellular growth was measured by MTT assay. RESULTS:SST could induce cell cycle arrest in S phase and upregulate Topo IIalpha expression in GBC-SD cells. GBC-SD cells expressed all 5 subtypes of SST receptors. Finally, combined use of DOX with SST had a synergistic cytotoxic effect on GBC-SD cells. CONCLUSION:SST, a naturally occurring, nontoxic compound, may represent a novel adjuvant chemotherapeutic agent for patients with gallbladder cancer.
journal_name
Chemotherapyjournal_title
Chemotherapyauthors
Quan ZW,Yue JN,Li JY,Qin YY,Guo RS,Li SGdoi
10.1159/000158662subject
Has Abstractpub_date
2008-01-01 00:00:00pages
431-7issue
6eissn
0009-3157issn
1421-9794pii
000158662journal_volume
54pub_type
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