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001-es BibID:BIBFORM019787
Első szerző:Pozsgai E.
Cím:The inhibitory effect of a novel cytotoxic somatostatin analogue AN-162 on experimental glioblastoma / Pozsgai, E., Schally, A. V., Halmos, G., Rick, F., Bellyei, S.
Dátum:2010
ISSN:0018-5043
Megjegyzések:Glioblastoma multiforme is the most common and most aggressive type of high grade tumor with a poor prognosis upon discovery. Based on earlier promising results earned with AN-162, a doxorubicin molecule linked to somatostatin (SST) analogue RC-160, it was our aim to determine the effect of AN-162 on DBTRG-05 glioblastoma cell line, and to test its efficacy in experimental brain tumors. We detected the expression of mRNA for somatostatin receptor (SSTR) subtypes 2 and 3 in DBTRG-05 cells with RT-PCR. Using ligand competition assay, specific high affinity receptors for somatostatin were found. The MTT assay showed that both AN-162 and doxorubicin (DOX) significantly inhibited cell proliferation and that there was no significant difference between the effects in vitro. Nude mice were xenografted with DBTRG-05 glioblastoma tumors. AN-162 showed a significant inhibition of tumor growth compared with the control group and the groups treated with equimolar doses of doxorubicin, somatostatin analogue RC-160, or the unconjugated mixture of doxorubicin plus RC-160. The tumor doubling time in the group of animals treated with AN-162 was extended and was significantly different from doubling times in the control group and in the other treatment groups. Our study clearly demonstrates a potent inhibitory effect of AN-162 in experimental glioblastoma, thus suggesting the possibility of its utilization in patients suffering from malignant brain cancer.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Hormone And Metabolic Research. - 42 : 11 (2010), p. 781-786. -
További szerzők:Schally, Andrew Victor Halmos Gábor (1962-) (gyógyszerész, receptorfarmakológus, experimentális onkológus) Rick Ferenc G. Bellyei Szabolcs
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