Trophoblast-like cells sorted from peripheral maternal blood using flow cytometry: a multiparametric study involving transmission electron microscopy and fetal DNA amplification.

Abstract:

:Three monoclonal antibodies (MAbs) against trophoblast (GB17, GB21, and GB25) and flow cytometry were used to sort trophoblast-like cells (TLCs) from peripheral blood of pregnant women. Sorted TLCs were processed for electron microscopy and fetal DNA amplification of the Y-specific sequences from mothers carrying male fetuses. At the ultra-structural level, most of the nucleated cells had the morphology of leucocytes, suggesting maternal contaminants, and we did not find the characteristic features of the free intervillous trophoblast cells. Nevertheless, polymerase chain reaction (PCR) analysis showed an amplification of Y-specific sequences in two out of three samples of sorted TLCs. These results suggest that besides the maternal leucocytes, sufficient trophoblast nucleated fetal cells can be obtained using cell enrichment by sorting. This sensitive method holds promise for non-invasive prenatal diagnosis of fetal sex and if sufficient Y(positive) nuclei are found, for the diagnosis of selected numerical chromosome abnormalities.

journal_name

Prenat Diagn

journal_title

Prenatal diagnosis

authors

Bruch JF,Metezeau P,Garcia-Fonknechten N,Richard Y,Tricottet V,Hsi BL,Kitzis A,Julien C,Papiernik E

doi

10.1002/pd.1970111007

subject

Has Abstract

pub_date

1991-10-01 00:00:00

pages

787-98

issue

10

eissn

0197-3851

issn

1097-0223

journal_volume

11

pub_type

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    更新日期:1995-04-01 00:00:00

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  • Maternal UPD 20 in an infant from a pregnancy with mosaic trisomy 20.

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  • A new semi-automated method for fetal volume measurements with three-dimensional ultrasound: preliminary results.

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    pub_type: 临床试验,杂志文章

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    doi:10.1002/(sici)1097-0223(199710)17:10<913::aid-pd17

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    doi:

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  • Prenatal diagnosis of triple X using fetal cells obtained by endocervical lavage.

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    更新日期:2003-07-01 00:00:00

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  • Identification of expressed sequence tags preferentially expressed in human placentas by in silico subtraction.

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  • Prenatal diagnosis of distal arthrogryposis type I by ultrasonography.

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  • The thick heterogeneous (jellylike) placenta: a strong predictor of adverse pregnancy outcome.

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  • Current awareness in prenatal diagnosis.

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    更新日期:2001-01-01 00:00:00

  • Prenatal diagnosis of fetal heart failure in twin reversed arterial perfusion syndrome.

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    doi:

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  • Maternal anxiety and ultrasound markers for aneuploidy in a multiethnic population.

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    doi:10.1002/pd.1618

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