Role of the phospholipase A2 receptor in liposome drug delivery in prostate cancer cells.
Role of the phospholipase A2 receptor in liposome drug delivery in prostate cancer cells.
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DOI：
10.1021/mp500174p
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发表时间：
2014-10-06
影响因子：
4.9
通讯作者：
Cummings BS
中科院分区：
文献类型：
--
作者：
Quach ND;Mock JN;Scholpa NE;Eggert MW;Payré C;Lambeau G;Arnold RD;Cummings BS
The M-type phospholipase A2 receptor (PLA2R1) is a member of the C-type lectin superfamily and can internalize secreted phospholipase A2 (sPLA2) via endocytosis in non-cancer cells. sPLA2 itself was recently shown to be overexpressed in prostate tumors and to be a possible mediator of metastasis; however, little is known about the expression of PLA2R1 or its function in prostate cancers. Thus, we examined PLA2R1 expression in primary prostate cells (PCS-440-010) and human prostate cancer cells (LNCaP, DU-145, and PC-3), and we determined the effect of PLA2R1 knockdown on cytotoxicity induced by free or liposome-encapsulated chemotherapeutics. Immunoblot analysis demonstrated that the expression of PLA2R1 was higher in prostate cancer cells compared to that in primary prostate cells. Knockdown of PLA2R1 expression in PC-3 cells using shRNA increased cell proliferation and did not affect the toxicity of cisplatin, doxorubicin (Dox), and docetaxel. In contrast, PLA2R1 knockdown increased the in vitro toxicity of Dox encapsulated in sPLA2 responsive liposomes (SPRL) and correlated with increased Dox and SPRL uptake. Knockdown of PLA2R1 also increased the expression of Group IIA and X sPLA2. These data show the novel findings that PLA2R1 is expressed in prostate cancer cells, that PLA2R1 expression alters cell proliferation, and that PLA2R1 modulates the behavior of liposome-based nanoparticles. Furthermore, these studies suggest that PLA2R1 may represent a novel molecular target for controlling tumor growth or modulating delivery of lipid-based nanomedicines.
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影响因子：
7.7
作者：
Augert, Arnaud;Payre, Christine;Bernard, David
通讯作者：
Bernard, David
影响因子：
4.8
作者：
NICOLAS, JP;LAMBEAU, G;LAZDUNSKI, M
通讯作者：
LAZDUNSKI, M
影响因子：
3.6
作者：
Surrel, Fanny;Jemel, Ikram;Lambeau, Gerard
通讯作者：
Lambeau, Gerard
影响因子：
2
作者：
Hanasaki, K
通讯作者：
Hanasaki, K
影响因子：
4.8
作者：
Zvaritch, E;Lambeau, G;Lazdunski, P
通讯作者：
Lazdunski, P