发明名称 |
ISOLATION OF TROPHOBLASTS |
摘要 |
A method for isolating trophoblast cells in a sample of or derived from maternal blood by (i) optionally removing or lysing erythrocytes, such as by gradient separation from the sample; (ii) contacting the sample with a reagent that is reactive to produce a detectable response with an intracellular enzyme that is present in trophoblasts but not present in maternal blood cells; (iii) identifying trophoblasts by observing the detectable response; and (iv) isolating the trophoblasts from platelets and other cells in the sample. Where the enzyme is P450scc, the preferred reagent is 22-phenoxazonoxy-5-cholene-3 beta -ol and the response is fluorescence. Where the enzyme is 3 beta -HSD the reagent is preferably nitroblue tetrazolium with NAD<+> in the presence of a 3 beta -hydroxy- DELTA <5>-steroid substrate and the response is colorimetric. |
申请公布号 |
WO9419487(A1) |
申请公布日期 |
1994.09.01 |
申请号 |
WO1994US01555 |
申请日期 |
1994.02.10 |
申请人 |
MEDIGENE, INC. |
发明人 |
GOLDBARD, SIMON, B.;SKLAR, LARRY, A.;MARRONE, BABETTA, L. |
分类号 |
C12Q1/24;C12Q1/32;G01N33/50;(IPC1-7):C12Q1/32 |
主分类号 |
C12Q1/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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