Document Detail


Endocannabinoid signaling directs differentiation of trophoblast cell lineages and placentation.
MedLine Citation:
PMID:  20837524     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In most mammals, placentation is critical for fetal development and pregnancy success. Exposure to marijuana during pregnancy has adverse effects, but whether the placenta is a target of cannabinoid/endocannabinoid signaling is not known. Using mice as a model system, we found that the endocannabinoid system is present in the ectoplacental cone and spongiotrophoblast cells. We also observed that aberrant endocannabinoid signaling confers premature trophoblast stem cell differentiation, and defective trophoblast development and invasion. These defects are reflected in retarded fetal development and compromised pregnancy outcome. Because the endocannabinoid system is conserved in mice and humans, our study suggests that endocannabinoid signaling is critical to placentation and pregnancy success in humans and implicates its potential significance in stem cell biology.
Authors:
Xiaofei Sun; Huirong Xie; Jie Yang; Haibin Wang; Heather B Bradshaw; Sudhansu K Dey
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural     Date:  2010-09-13
Journal Detail:
Title:  Proceedings of the National Academy of Sciences of the United States of America     Volume:  107     ISSN:  1091-6490     ISO Abbreviation:  Proc. Natl. Acad. Sci. U.S.A.     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-09-30     Completed Date:  2010-10-28     Revised Date:  2011-07-27    
Medline Journal Info:
Nlm Unique ID:  7505876     Medline TA:  Proc Natl Acad Sci U S A     Country:  United States    
Other Details:
Languages:  eng     Pagination:  16887-92     Citation Subset:  IM    
Affiliation:
Division of Reproductive Sciences, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.
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MeSH Terms
Descriptor/Qualifier:
Animals
Cell Differentiation*
Cell Lineage*
Cell Proliferation
Endocannabinoids / genetics,  metabolism*
Female
Fetal Death / genetics
Mice
Mice, Knockout
Placentation / genetics,  physiology*
Pregnancy
Receptor, Cannabinoid, CB1 / genetics
Signal Transduction
Trophoblasts / cytology*,  metabolism
Grant Support
ID/Acronym/Agency:
DA018224/DA/NIDA NIH HHS; DA06668/DA/NIDA NIH HHS; HD12304/HD/NICHD NIH HHS
Chemical
Reg. No./Substance:
0/Endocannabinoids; 0/Receptor, Cannabinoid, CB1
Comments/Corrections

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