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Updated: May 2, 2026

MicroRNA Expression Profiles of Human iPS Cells, Retinal Pigment Epithelium Derived From iPS, and Fetal Retinal Pigment Epithelium
Published on: June 24, 2014
Using Comparative Transcriptomics and Histology to Identify Significant Differentially Expressed Genes Associated
Sona Jasani1, Athmika Vaseeharan2, Anamika Singh3
11Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut.
Retained placenta, a reproductive complication, poses prediction challenges. This study identified shared genes and immune pathways in humans and nonhuman primates (NHPs), aiding biomarker discovery and NHP model refinement.
Area of Science:
- Reproductive Biology
- Comparative Genomics
- Immunology
Background:
- Retained placenta is a significant reproductive complication in humans and nonhuman primates (NHPs).
- Accurate prediction is hindered by unknown etiology, inadequate biomarkers, and heterogeneous data.
- A comparative approach is crucial for understanding shared mechanisms.
Purpose of the Study:
- To identify shared differentially expressed genes associated with retained placenta between humans and NHPs.
- To explore the functional pathways involved in retained placenta.
- To evaluate the utility of NHPs as a model system for retained placenta research.
Main Methods:
- Comparative transcriptomic analysis of human and NHP samples with retained placenta.
- Identification of significantly differentially expressed genes.
- Pathway enrichment analysis (innate/adaptive immunity, hemostasis).
- Histological examination of placental inflammation.
Main Results:
- Identified 34 significantly differentially expressed genes common to humans and NHPs.
- Pathway analysis revealed upregulation in innate/adaptive immunity and hemostasis.
- NHP retained placentas showed greater histologic evidence of inflammation than human samples.
Conclusions:
- Cross-species transcriptional analysis provides insights into retained placenta mechanisms.
- Findings support NHP refinement as a translational model system.
- Identified genes and pathways can inform future biomarker discovery for retained placenta in humans and NHPs.
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