Isolation and Purification of a Peptide from Bullacta exarata and Its Impaction of Apoptosis on Prostate Cancer Cell
Bullacta exarata was hydrolyzed with trypsin to prepare peptides; Hydrolysates were isolated by ultrafiltration and purified using G-25 gel filtration. The purity of the Bullacta exarata was demonstrated by HPLC and its peptide sequence analysis was detected. The effects of BEPT II and BEPT II-1 on...
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MDPI AG
2013-01-01
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Online Access: | http://www.mdpi.com/1660-3397/11/1/266 |
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author | Xian Wang Fangfang Huang Huanle Lin Jianyin Ma |
author_facet | Xian Wang Fangfang Huang Huanle Lin Jianyin Ma |
author_sort | Xian Wang |
collection | DOAJ |
description | Bullacta exarata was hydrolyzed with trypsin to prepare peptides; Hydrolysates were isolated by ultrafiltration and purified using G-25 gel filtration. The purity of the Bullacta exarata was demonstrated by HPLC and its peptide sequence analysis was detected. The effects of BEPT II and BEPT II-1 on the proliferation of PC-3 cells were examined using a MTT assay. BEPT II and BEPT II-1 significantly inhibited the proliferation of PC-3 cells in a time- and dose-dependent manner. Annexin V/PI double staining studies showed exposing PC-3 cells to 5, or 15 mg/mL BEPT II-1 for 24 h increased the percentage of the early stage of apoptotic cells from 11.22% to 22.09%. In addition, typical morphologic changes were observed in the cells with acridine orange/ethidium bromide staining. These data support that BEPT II-1 has anticancer properties and merits further investigation to understand the mechanisms of BEPT II-1-induced apoptosis in PC-3 cells. |
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spelling | doaj.art-a64e9e6046d94a24990ac7dd761616082022-12-22T04:24:33ZengMDPI AGMarine Drugs1660-33972013-01-0111126627310.3390/md11010266Isolation and Purification of a Peptide from Bullacta exarata and Its Impaction of Apoptosis on Prostate Cancer CellXian WangFangfang HuangHuanle LinJianyin MaBullacta exarata was hydrolyzed with trypsin to prepare peptides; Hydrolysates were isolated by ultrafiltration and purified using G-25 gel filtration. The purity of the Bullacta exarata was demonstrated by HPLC and its peptide sequence analysis was detected. The effects of BEPT II and BEPT II-1 on the proliferation of PC-3 cells were examined using a MTT assay. BEPT II and BEPT II-1 significantly inhibited the proliferation of PC-3 cells in a time- and dose-dependent manner. Annexin V/PI double staining studies showed exposing PC-3 cells to 5, or 15 mg/mL BEPT II-1 for 24 h increased the percentage of the early stage of apoptotic cells from 11.22% to 22.09%. In addition, typical morphologic changes were observed in the cells with acridine orange/ethidium bromide staining. These data support that BEPT II-1 has anticancer properties and merits further investigation to understand the mechanisms of BEPT II-1-induced apoptosis in PC-3 cells.http://www.mdpi.com/1660-3397/11/1/266Bullacta exarata peptidesisolation and purificationprostate cancerapoptosis |
spellingShingle | Xian Wang Fangfang Huang Huanle Lin Jianyin Ma Isolation and Purification of a Peptide from Bullacta exarata and Its Impaction of Apoptosis on Prostate Cancer Cell Marine Drugs Bullacta exarata peptides isolation and purification prostate cancer apoptosis |
title | Isolation and Purification of a Peptide from Bullacta exarata and Its Impaction of Apoptosis on Prostate Cancer Cell |
title_full | Isolation and Purification of a Peptide from Bullacta exarata and Its Impaction of Apoptosis on Prostate Cancer Cell |
title_fullStr | Isolation and Purification of a Peptide from Bullacta exarata and Its Impaction of Apoptosis on Prostate Cancer Cell |
title_full_unstemmed | Isolation and Purification of a Peptide from Bullacta exarata and Its Impaction of Apoptosis on Prostate Cancer Cell |
title_short | Isolation and Purification of a Peptide from Bullacta exarata and Its Impaction of Apoptosis on Prostate Cancer Cell |
title_sort | isolation and purification of a peptide from bullacta exarata and its impaction of apoptosis on prostate cancer cell |
topic | Bullacta exarata peptides isolation and purification prostate cancer apoptosis |
url | http://www.mdpi.com/1660-3397/11/1/266 |
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