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Localization of mRNA for basic fibroblast growth factor in human placenta
1Centre for Clinical Research in Immunology and Signalling (CCRIS), Medical School, University of Birmingham, Edgbaston, UK.
Growth Factors (Chur, Switzerland)
|January 1, 1994
Summary
Basic fibroblast growth factor (bFGF) mRNA is expressed in the human placenta throughout gestation. This gene expression is found in trophoblast cells and placental vessels, suggesting roles in placental development and function.
Area of Science:
- Reproductive Biology
- Developmental Biology
- Molecular Biology
Background:
- The precise location of basic fibroblast growth factor (bFGF) gene expression within the human placenta has not been previously established.
- Understanding bFGF localization is crucial for elucidating its role in placental development and function.
Purpose of the Study:
- To identify and localize the sites of basic fibroblast growth factor (bFGF) gene expression in human placental tissue during early and late gestation.
Main Methods:
- In situ hybridization using a [35S]-labelled riboprobe was performed on placental sections from different gestational stages.
- Autoradiography was used to detect and quantify bFGF mRNA hybridization signals.
Main Results:
- bFGF mRNA expression was detected throughout all examined placental tissues, with no signal in control sections.
- Early gestation: bFGF expression observed in syncytiotrophoblast and cytotrophoblast cells.
- Late gestation: bFGF detected in syncytiotrophoblast, fetal membranes, and notably in smooth muscle cells of placental vasculature.
Conclusions:
- The presence of bFGF mRNA in early pregnancy placenta suggests a role in angiogenesis.
- Expression at term indicates bFGF may be involved in differentiated trophoblast functions.
- bFGF gene expression is localized to key placental cell types and vasculature, highlighting its potential importance in pregnancy.