从具有抗癌作用的暹罗豚毒液中纯化出一种磷脂酶 A(2)

Journal of Venom Research Pub Date : 2011-01-01 Epub Date: 2011-10-22
Suchitra Khunsap, Narumol Pakmanee, Orawan Khow, Lawan Chanhome, Visith Sitprija, Montamas Suntravat, Sara E Lucena, John C Perez, Elda E Sánchez
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引用次数: 0

摘要

毒液磷脂酶 A2(PLA(2))具有神经毒性、肌毒性、心脏毒性、血小板聚集和水肿活性。通过尺寸排阻和阴离子交换高效液相色谱(HPLC)两步纯化程序,从暹罗鲎毒液中纯化了一种聚乳酸(2)(Drs-PLA(2))。经 MALDI-TOF 质谱测定,Drs-PLA(2) 的分子量为 13,679Da 。其 N 端氨基酸序列与蝰蛇毒中的基本聚乳酸(2)同源。Drs-PLA(2)具有间接溶血和抗凝活性、细胞毒性活性(CC(50)为 65.8nM)和抑制 SK-MEL-28 细胞迁移的活性(IC(50)为 25.6nM)。此外,Drs-PLA(2) 还能抑制 B16F10 细胞在 BALB/c 小鼠肺部的定植,抑制率达 65%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Purification of a phospholipase A(2) from Daboia russelii siamensis venom with anticancer effects.

Purification of a phospholipase A(2) from Daboia russelii siamensis venom with anticancer effects.

Purification of a phospholipase A(2) from Daboia russelii siamensis venom with anticancer effects.

Purification of a phospholipase A(2) from Daboia russelii siamensis venom with anticancer effects.

Venom phospholipases A2 (PLA(2)) are associated with neurotoxic, myotoxic, cardiotoxic, platelet aggregation, and edema activities. A PLA(2) (Drs-PLA(2)) was purified from Daboia russelii siamensis venom by a two-step purification procedure consisting of size-exclusion, followed by anion exchange high performance liquid chromatography (HPLC). The molecular weight of the Drs-PLA(2) was 13,679Da, which was determined by MALDI-TOF mass spectrometry. Its N-terminal amino acid sequence was homologous to basic PLA(2)s of viperid snake venoms. The Drs-PLA(2) had indirect hemolytic and anticoagulant activities, cytotoxic activity with a CC(50) of 65.8nM, and inhibited SK-MEL-28 cell migration with an IC(50) of 25.6nM. In addition, the Drs-PLA(2) inhibited the colonization of B16F10 cells in lungs of BALB/c mice by ∼65%.

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