Hemophilia is an X-linked recessive bleeding disorder. In pregnant women carrier of hemophilia, the fetal sex can be determined by non-invasive analysis of fetal DNA circulating in the maternal blood. However, in case of a male fetus, conventional invasive procedures are required for the diagnosis of hemophilia. Fetal cells, circulating in the maternal bloodstream, are an ideal target for a safe non-invasive prenatal diagnosis. Nevertheless, the small number of cells and the lack of specific fetal markers have been the most limiting factors for their isolation. We aimed to develop monoclonal antibodies (mAbs) against the ribosomal protein RPS4Y1 expressed in male cells. By Western blotting, immunoprecipitation and immunofluorescence analyses performed on cell lysates from male human hepatoma (HepG2) and female human embryonic kidney (HEK293) we developed and characterized a specific monoclonal antibody against the native form of the male RPS4Y1 protein that can distinguish male from female cells. The availability of the RPS4Y1-targeting monoclonal antibody should facilitate the development of novel methods for the reliable isolation of male fetal cells from the maternal blood and their future use for non-invasive prenatal diagnosis of X-linked inherited disease such as hemophilia.

Development of a specific monoclonal antibody to detect male cells expressing the rps4y1 protein / S. Spena, C. Cordiglieri, I. Garagiola, F. Peyvandi. - In: INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES. - ISSN 1661-6596. - 22:4(2021 Feb), pp. 2001.1-2001.14. [10.3390/ijms22042001]

Development of a specific monoclonal antibody to detect male cells expressing the rps4y1 protein

Spena S.;Garagiola I.;Peyvandi F.
2021-02

Abstract

Hemophilia is an X-linked recessive bleeding disorder. In pregnant women carrier of hemophilia, the fetal sex can be determined by non-invasive analysis of fetal DNA circulating in the maternal blood. However, in case of a male fetus, conventional invasive procedures are required for the diagnosis of hemophilia. Fetal cells, circulating in the maternal bloodstream, are an ideal target for a safe non-invasive prenatal diagnosis. Nevertheless, the small number of cells and the lack of specific fetal markers have been the most limiting factors for their isolation. We aimed to develop monoclonal antibodies (mAbs) against the ribosomal protein RPS4Y1 expressed in male cells. By Western blotting, immunoprecipitation and immunofluorescence analyses performed on cell lysates from male human hepatoma (HepG2) and female human embryonic kidney (HEK293) we developed and characterized a specific monoclonal antibody against the native form of the male RPS4Y1 protein that can distinguish male from female cells. The availability of the RPS4Y1-targeting monoclonal antibody should facilitate the development of novel methods for the reliable isolation of male fetal cells from the maternal blood and their future use for non-invasive prenatal diagnosis of X-linked inherited disease such as hemophilia.
Diagnosis; Fetal cells; Hemophilia; Male cells; Male marker; Monoclonal antibody; Ribosomal protein; RPS4Y1; Antibodies, Monoclonal; Antibody Specificity; Cell-Free Nucleic Acids; Female; Fetal Diseases; HEK293 Cells; Hemophilia A; Hep G2 Cells; Humans; Male; Pregnancy; Prenatal Diagnosis; Ribosomal Proteins; Sensitivity and Specificity
Settore MED/09 - Medicina Interna
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/904258
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