Merocyanine 540 as a fluorescent probe of membranes: Selective staining of leukemic and immature hemopoietic cells
Merocyanine 540 as a fluorescent probe of membranes: Selective staining of leukemic and immature hemopoietic cells
复制标题
部花青 540 作为膜荧光探针:白血病和未成熟造血细胞的选择性染色
DOI:
10.1016/0092-8674(78)90322-7
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发表时间:
1978
期刊:
影响因子:
64.5
通讯作者:
E. Reich
中科院分区:
文献类型:
--
作者:
J. Valinsky;T. Easton;E. Reich
We have reported(Easton, Valinsky and Reich, 1978) that merocyanine 540 (MC 540) specifically stains a variety of living excitable cells, but not nonexcitable cells. This paper describes the exceptional permeability to MC 540 of leukemic leukocytes and immature hemopoietic precursor cells.We have used fluorescence microscopy and uptake of radioactive dye to study MC 540 staining of peripheral blood leukocytes from 80 leukemic and 34 normal individuals; leukemic leukocytes stain, whereas normal leukcytes do not. The leukocyte staining reaction differs from that previously described for excitable cells since it is independent of the ionic composition of the sta’ining medium, kinetically complex, enhanced by light, enhanced by oxygen and essentially irreversible. Virtually all circulating nucleated cells from leukemic individuals are stained to approximately the same extent, and there is no qualitative or quantitative distinction between the various forms of leukemia.