Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
Weiss, U; Cervar, M; Puerstner, P; Schmut, O; Haas, J; Mauschitz, R; Arikan, G; Desoye, G.
Hyperglycaemia in vitro alters the proliferation and mitochondrial activity of the choriocarcinoma cell lines BeWo, JAR and JEG-3 as models for human first-trimester trophoblast.
Diabetologia. 2001; 44(2):209-219
Doi: 10.1007%2Fs001250051601
[OPEN ACCESS]
Web of Science
PubMed
FullText
FullText_MUG
Google Scholar
- Führende Autor*innen der Med Uni Graz
- Desoye Gernot
- Co-Autor*innen der Med Uni Graz
- Cervar-Zivkovic Mila
- Haas Josef
- Mauschitz Renate
- Pürstner Peter
- Schmut Otto
- Altmetrics:
- Dimensions Citations:
- Plum Analytics:
- Scite (citation analytics):
- Abstract:
- Aims/hypothesis. Early intrauterine growth delay in diabetes could be caused by a reduced growth of the placenta. Our study investigates whether hyperglycaemia in vitro reduces trophoblast proliferation.Methods. First-trimester trophoblast cell models (BeWo, JAR and JEG-3 choriocarcinoma cells) were cultured for 24 and 48 h with 5.5 mmol/l D-glucose, 25 mmol/l D-glucose (hyperglycaemia) and with an osmotic control. Cell number, total protein and nucleic acid content and mitochondrial activity (tetrazolium salt assay) were measured, the cell cycle analysed (FACS, cyclin B1 levels) and apoptosis (Annexin-V) measured.Results. In BeWo cells hyperglycaemia reduced cell number, protein, nucleic acid and cyclin B1 levels. The reduced G(2)/M and increased G(0)/G(1) population after 24 h reflects growth arrest at G(0)/G(1). In JAR cells after 24 h the population was arrested in G(0)/G(1), whereas after 48 h the G(0)/G(1) block was abrogated and the cells were arrested at G(2)/M. The net effect was an unchanged cell number. In JEG-3 cells hyperglycaemia resulted in fewer cells after 24 h but not after 48 h indicating some adaptation. Mitochondrial activity was either stimulated (BeWo) or reduced (JAR, JEG-3) under hyperglycaemia. Some of these effects were also induced by hyperosmolarity alone.Conclusion/interpretation. Hyperglycaemia has the potential to inhibit the proliferation of first-trimester trophoblast cell models. The mechanisms leading to growth arrest and to changes in mitochondrial activity are complex and depend on differentiation. We hypothesise a hyperglycaemia-induced impairment of placental growth in the first trimester of a poorly controlled diabetic pregnancy.
- Find related publications in this database (using NLM MeSH Indexing)
- Apoptosis -
- Cell Count -
- Cell Cycle -
- Cell Division -
- Cell Survival -
- Choriocarcinoma - pathology
- Cyclin B - analysis
- Female - analysis
- Flow Cytometry - analysis
- Gestational Age - analysis
- Glucose - administration and dosage
- Humans - administration and dosage
- Hyperglycemia - pathology
- Immunoblotting - pathology
- Mitochondria - pathology
- Models, Biological - pathology
- Osmolar Concentration - pathology
- Pregnancy - pathology
- Pregnancy in Diabetics - pathology
- Trophoblasts - physiology
- Tumor Cells, Cultured - physiology
- Uterine Neoplasms - pathology
- Find related publications in this database (Keywords)
- diabetes
- pregnancy
- hyperglycaemia
- proliferation
- placenta
- growth delay
- cell cycle
- hyperosmolarity