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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Main Authors: Xian Wang, Fangfang Huang, Huanle Lin, Jianyin Ma
Format: Article
Language:English
Published: MDPI AG 2013-01-01
Series:Marine Drugs
Subjects:
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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