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Comparison of methods of natural killer cell sorting and purification from human peripheral blood

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Author:
No author available
Journal Title:
JOURNAL OF LEUKEMIA & LYMPHOMA
Issue:
3
DOI:
10.3760/cma.j.issn.1009-9921.2011.03.005
Key Word:
流式细胞术;免疫磁珠分选技术;杀伤细胞,天然;Flow cytometry;Magnetic activated cell sorting;Killer cells,natural

Abstract: Objective To apply fluorescence-activated cell sorting (FACS) and magnetic activated cell sorting (MACS) in sorting natural killer (NK) cells from human peripheral blood. The efficiency of these two methods were compared so that the basic conditions for the further study on the lower proportion of peripheral blood cells could be created. Methods Twenty cases of normal peripheral blood and 3 cases of post-hematopoietic stem cell transplantation (post-HSCT) were collected and NK cell were sorted by FACS and MACS. Results Before sorting the normal peripheral blood, the proportion of the NK cell in the leukocyte was (12.86±3.62) %, the purity of NK cell was up to (96.15±2.03) % and the recovery was (95.08±2.16) %after sorting by FACS, the purity was up to (93.35±3.61) % and the recovery was (94.11±3.01) % by MACS.And before sorting the post-HSCT peripheral blood, the proportion of the NK cell in the leukocyte was (11.01±2.08) %, the purity of NK cell was up to (96.22±2.16) % and the recovery was (95.27±1.18) % after sorting by FACS. The purity was up to (90.98±1.94) % and the recovery was (94.54±3.52) % by MACS. Thereis difference in purity of NK cell (t = 5.925, P <0.05), while no difference in rate of recovery between 2methods (t = 0.789, P >0.05). Conclusion FACS is more efficient, rapidly and easily than MACS in sorting NK cell, especially for post-HSCT cases.

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