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Human Placental Tissue Contains A Placental Lactogen-Derived Vasoinhibin

Hülya Markl-Hahn1, Leon Neugebauer1, Livia Lenke1

  • 1Institute for Clinical Chemistry, Laboratory Medicine and Transfusion Medicine, Nuremberg General Hospital & Paracelsus Medical University, 90419 Nuremberg, Germany.

Journal of the Endocrine Society
|March 10, 2022
PubMed

Hormonal factors affecting the vascular adaptions of the uteroplacental unit in noncomplicated and complicated pregnancies are of interest. Here, 4 human placentas from women with and without preeclampsia (PE) were investigated for the presence of placental lactogen (PL)-derived, antiangiogenic vasoinhibin. Western blotting and mass spectrometry of placental tissue revealed the presence of a 9-kDa PL-derived vasoinhibin, the normal 22-kDa full-length PL, and a 28-kDa immunoreactive protein of undetermined nature. The sequence of the 9-kDa vasoinhibin includes the antiangiogenic determinant of vasoinhibin and could constitute a relevant factor in normal pregnancy and PE.

Keywords:
placentaplacental lactogenpreeclampsiavasoinhibin

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