A novel quantification method for retinal pigment epithelium phagocytosis using a very-long-chain polyunsaturated fatty acids-based strategy.
A novel quantification method for retinal pigment epithelium phagocytosis using a very-long-chain polyunsaturated fatty acids-based strategy.
复制标题
一种新型的定量方法,用于使用非常长的链多不饱和脂肪酸的策略,用于视网膜色素上皮细胞增多症。
DOI:
10.3389/fnmol.2023.1279457
复制
发表时间:
2023
影响因子:
4.8
通讯作者:
Skowronska-Krawczyk, Dorota
中科院分区:
文献类型:
--
作者:
Gao, Fangyuan;Tom, Emily;Lieffrig, Stephanie A.;Finnemann, Silvia C.;Skowronska-Krawczyk, Dorota
关键词:
The vertebrate retinal pigment epithelium (RPE) lies adjacent to the photoreceptors and is responsible for the engulfment and degradation of shed photoreceptor outer segment fragments (POS) through receptor-mediated phagocytosis. Phagocytosis of POS is critical for maintaining photoreceptor function and is a key indicator of RPE functionality. Popular established methods to assess RPE phagocytosis rely mainly on quantifying POS proteins, especially their most abundant protein rhodopsin, or on fluorescent dye conjugation of bulk, unspecified POS components. While these approaches are practical and quantitative, they fail to assess the fate of POS lipids, which make up about 50% of POS by dry weight and whose processing is essential for life-long functionality of RPE and retina. We have developed a novel very-long-chain polyunsaturated fatty acids (VLC-PUFA)-based approach for evaluating RPE phagocytic activity by primary bovine and rat RPE and the human ARPE-19 cell line and validated its results using traditional methods. This new approach can be used to detect in vitro the dynamic process of phagocytosis at varying POS concentrations and incubation times and offers a robust, unbiased, and reproducible assay that will have utility in studies of POS lipid processing.
登录
查看更多内容
DOI:
10.1083/jcb.202101063
发表时间:
2021-08-02
期刊:
The Journal of cell biology
影响因子:
--
作者:
Sander CL;Sears AE;Pinto AFM;Choi EH;Kahremany S;Gao F;Salom D;Jin H;Pardon E;Suh S;Dong Z;Steyaert J;Saghatelian A;Skowronska-Krawczyk D;Kiser PD;Palczewski K
通讯作者:
Palczewski K
影响因子:
3.8
作者:
BARCIA, EM;NEWBURGER, J;YOUNG, D
通讯作者:
YOUNG, D
影响因子:
--
作者:
Lewis, Tylor R.;Kundinger, Sean R.;Besharse, Joseph C.
通讯作者:
Besharse, Joseph C.
影响因子:
4.1
作者:
Liu, Aihua;Terry, Ryan;Bernstein, Paul S.
通讯作者:
Bernstein, Paul S.
影响因子:
30.8
作者:
Gal, A;Li, Y;Vollrath, D
通讯作者:
Vollrath, D