Acute Drug Effects on the Human Placental Tissue: The Development of a Placental Murine Xenograft Model.
Reprod Sci
; 25(12): 1637-1648, 2018 12.
Article
in En
| MEDLINE
| ID: mdl-29439620
ABSTRACT
OBJECTIVE:
A pilot study was conducted to establish a human placental xenograft, which could serve as a model to evaluate the effect of toxic exposures during pregnancy. STUDYDESIGN:
The protocol consisted of engraftment of third-trimester human placental tissue in immunocompromised mice, after induction of a pseudo-pregnancy state by ovariectomy and progesterone supplementation. To validate the model, the placental tissue before and after engraftment was examined by immunohistochemistry, fluorescence-activated cell sorting (FACS), single-nucleotide polymorphism (SNP) genotyping, and whole transcriptome sequencing (WTSS). The human chorion gonadotropin (hCG) production in serum and urine was examined by enzyme-linked immunosorbent assay.RESULTS:
Microscopic evaluation of the placental tissue before and after engraftment revealed a stable morphology and preserved histological structure of the human tissue. Viable trophoblast was present after engraftment and remained stable over time. Vascularization and hormonal secretion (hCG) were present till 3 weeks after engraftment. Thirty-one SNPs were equally present, and there was a stable expression level for 56 451 genes evaluated by whole transcriptome sequencing.CONCLUSION:
Although this human placental xenograft model cannot copy the unique uterine environment in which the placenta develops and interacts between the mother and the fetus, it could be a suitable tool to evaluate the acute impact and adaptive processes of the placental tissue to environmental changes.Key words
Full text:
1
Database:
MEDLINE
Main subject:
Placenta
/
Polymorphism, Single Nucleotide
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Transcriptome
/
Heterografts
Limits:
Animals
/
Female
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Humans
/
Pregnancy
Language:
En
Year:
2018
Type:
Article