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Placental Cannabinoid Receptor Expression in Preterm Birth
Stepan Feduniw1, Izabela Krupa2, Katarzyna Łagowska2
1Department of Gynecology, University Hospital Zurich, 8091 Zurich, Switzerland.
Journal of Pregnancy
|May 15, 2024
Summary
Reduced expression of cannabinoid receptors (CBRs) in placental tissue was observed in women experiencing preterm birth (PTB). This finding suggests CBRs may serve as a predictive indicator for PTB.
Area of Science:
- Reproductive biology
- Genetics
- Obstetrics
Background:
- Cannabinoid receptors (CBRs) are implicated in key reproductive processes like oogenesis, pregnancy, and childbirth.
- A potential role for CBRs in the etiology of preterm birth (PTB) warrants investigation.
Purpose of the Study:
- To investigate the association between placental cannabinoid receptor (CBR) expression and the incidence of preterm birth (PTB).
Main Methods:
- Prospective, observational, multicentre study involving 109 women's placental samples.
- Analysis of CBR1, CBR1a, and CBR2 expression using reverse transcription and real-time PCR.
- Comparison of receptor expression between women with PTB and a control group delivering at term.
Main Results:
- Significantly lower expression of CBR2, CBR1, and CBR1a mRNA was detected in placentas from women who experienced PTB compared to those delivering at term (p=0.038, 0.033, 0.034, respectively).
Conclusions:
- Confirmation of CBR mRNA presence in human placental tissue.
- Decreased expression of CBRs in the placenta may serve as a potential predictive biomarker for preterm birth.
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