Fetal membranes exhibit similar nutrient transporter expression profiles to the placenta

Ryan C V Lintao1, Ananth Kumar Kammala2, Natasha Vora3

  • 1Division of Basic Science and Translational Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, 301 University Blvd., Galveston, TX, 77555-1062, USA; College of Medicine, University of the Philippines Manila, 547 Pedro Gil St., Manila, 1000, Philippines.

Placenta
|March 13, 2023
PubMed

Insights

Human fetal membranes express nutrient transporters, similar to placental cells. This finding is crucial for understanding nutrient uptake during pregnancy and requires further functional studies.

Area of Science:

  • Obstetrics and Gynecology
  • Maternal-Fetal Medicine
  • Human Physiology

Background:

  • Fetal growth relies on nutrient exchange via the utero-placental unit.
  • Nutrient transfer is mediated by solute carrier (SLC) and adenosine triphosphate-binding cassette (ABC) proteins.
  • The role of human fetal membranes (FM) in nutrient uptake is largely unknown, despite their known role in drug transport.

Purpose of the Study:

  • To determine nutrient transporter gene and protein expression in human FM.
  • To compare nutrient transporter expression in FM with placental tissues and BeWo cells.

Main Methods:

  • RNA sequencing (RNA-Seq) of placental and FM tissues and cells.
  • Identification of solute carrier (SLC) and adenosine triphosphate-binding cassette (ABC) transporter genes.
  • Proteomic analysis using nano-liquid chromatography-tandem mass spectrometry (nanoLC-MS/MS) to confirm protein expression.

Main Results:

  • Human FM tissues and cells express nutrient transporter genes, with expression patterns similar to placental tissues and BeWo cells.
  • Transporters for macronutrients and micronutrients, including carbohydrate, vitamin, amino acid, fatty acid, cholesterol, and nucleoside transporters, were identified in both FM and BeWo cells.
  • Proteomic analysis confirmed the expression of these nutrient transporters at the protein level.

Conclusions:

  • Human fetal membranes express a range of nutrient transporters.
  • This study provides foundational knowledge for understanding nutrient uptake in the FM during pregnancy.
  • Further functional studies are necessary to elucidate the specific properties and roles of these transporters in FM.
Abstract

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