ANALYSIS OF SPERM CELL VIABILITY, ACROSOMAL INTEGRITY, AND MITOCHONDRIAL-FUNCTION USING FLOW-CYTOMETRY

被引:261
作者
GRAHAM, JK [1 ]
KUNZE, E [1 ]
HAMMERSTEDT, RH [1 ]
机构
[1] PENN STATE UNIV, BIOCHEM PROGRAM, 406 ALTHOUSE LAB, UNIVERSITY PK, PA 16802 USA
关键词
D O I
10.1095/biolreprod43.1.55
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
A triple staining procedure was developed to evaluate bull spermatozoa using flow cytometry. Flow cytometric estimates of cell viability, measured by propidium iodide (PI) exclusion, and acrosomal integrity, measured by Pisum sativum agglutinin (PSA) binding acrosomal contents, were equivalent to estimates made by using standard laboratory assays. Mitochondrial function, measured by rhodamine 123 (R123) fluorescence, was depressed by the mitochondrial inhibitors rotenone (64%) or monensin (52%), establishing that mitochondrial damage can be detected. Dilauroylphosphatidylcholine (PC12) or lysophosphatidylcholine (LPC) was used to destabilize sperm membranes. When challenged with 15-30 μM PC12, selective exposure of PSA binding sites occurred without induction of PI uptake or loss of R123 staining. However, PC12 concentrations >60 μM resulted in a loss of R123 fluorescence intensity. In contrast, >1200 μM LPC was required to expose PSA binding sites, which also resulted in PI uptake. By using flow cytometry, these three stains in combination can be used to correlate three different features simultaneously on individual spermatozoa and assay thousands of cells per sample without extensive preparation.
引用
收藏
页码:55 / 64
页数:10
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