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Related Experiment Videos

Calcium-binding proteins: distribution and implication in mammalian placenta.

Louiza Belkacemi1, Lucie Simoneau, Julie Lafond

  • 1Laboratoire de Physiologie Materno-Foetale, Département des Sciences Biologiques, Université du Québec à Montréal, Montréal, Canada.

Endocrine
|February 14, 2003
PubMed
Summary

Calcium transport in the placenta is crucial for fetal development, particularly during the last trimester. This review explores the role of calcium-binding proteins (CaBPs) in regulating fetal calcium homeostasis.

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Area of Science:

  • Reproductive Biology
  • Cell Physiology
  • Biochemistry

Background:

  • The placenta is the sole supplier of nutrients to the fetus during gestation.
  • Placental calcium (Ca2+) transport is critical for fetal calcium homeostasis and skeletal mineralization, especially in the third trimester.
  • The precise mechanisms of transplacental Ca2+ transport remain largely unknown.

Purpose of the Study:

  • To review current knowledge on calcium-binding proteins (CaBPs) in placental function.
  • To highlight the potential roles of CaBPs in regulating intracellular Ca2+ homeostasis within the placenta.
  • To guide future research on CaBP localization and function in placental Ca2+ transport.

Main Methods:

  • Literature review of existing research on CaBPs and placental Ca2+ transport.

Related Experiment Videos

  • Analysis of the structural and functional characteristics of CaBPs with EF-hand motifs.
  • Identification of known CaBPs expressed in the human placenta.

    • Main Results:

    • Calcium-binding proteins (CaBPs) possess high affinity for Ca2+ and may regulate or shuttle cytosolic Ca2+.
    • Over 200 CaBP members exist, characterized by the EF-hand motif.
    • Several CaBPs, including CaBP9k, CaBP28k, CaBP57k, oncomodulin, S-100P, S-100alpha, and S-100beta, have been identified in the placenta.

    Conclusions:

    • CaBPs are likely key players in the placental regulation of fetal calcium.
    • Further investigation into CaBP localization and function is necessary to understand placental Ca2+ homeostasis.
    • Understanding these mechanisms is vital for ensuring proper fetal skeletal development.