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Updated: Aug 5, 2026
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Mesenchymal Stem Cell Regulation of Macrophage Phagocytosis; Quantitation and Imaging
Published on: July 16, 2021
[Comparative transcriptomic analysis of sheep granulosa cells regulated by different macrophage subtypes]
Tianning Dong1,2, Chenbo Yan1,2, Xiaojuan Luo1,2
1Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
Summary
This study explores how different types of ovarian macrophages influence sheep granulosa cells (GCs). Findings reveal distinct transcriptomic changes in GCs when co-cultured with M0, M1, or M2 polarized macrophages, clarifying immune cell roles in ovarian function.
Area of Science:
- Reproductive immunology
- Ovarian biology
- Cellular immunology
Background:
- Macrophages are key immune cells in mammalian ovaries, regulating homeostasis, follicular development, and hormone production.
- The precise mechanisms by which ovarian macrophages modulate granulosa cells (GCs) in sheep are not fully understood.
- Understanding these interactions is crucial for advancing reproductive health and fertility research.
Purpose of the Study:
- To investigate the molecular mechanisms of macrophage-granulosa cell (GC) interactions within the sheep ovarian microenvironment.
- To characterize the transcriptomic responses of ovarian GCs influenced by macrophages with distinct polarization states (M0, M1, M2).
- To provide a foundational dataset for research on ruminant follicular development and ovarian immunoregulation.
Main Methods:
- Established an in vitro co-culture model using sheep bone marrow-derived macrophages (BMDMs) and ovarian granulosa cells.
- Polarized BMDMs to M0, M1, and M2 phenotypes and co-cultured them with GCs.
- Performed transcriptomic sequencing (RNA-seq) on GCs, followed by bioinformatics analysis (DEG, GO, KEGG enrichment).
- Validated findings using flow cytometry and quantitative PCR (qPCR).
Main Results:
- Identified differential gene expression profiles in granulosa cells (GCs) exposed to M0, M1, and M2 polarized macrophages.
- Transcriptomic analysis revealed distinct molecular signatures in GCs based on the macrophage polarization state.
- Data provides insights into the immunomodulatory effects of macrophages on GC function.
Conclusions:
- Differentially polarized macrophages significantly impact the transcriptomic landscape of sheep granulosa cells.
- This study elucidates specific molecular pathways involved in macrophage-granulosa cell communication in the ovarian microenvironment.
- The generated dataset serves as a valuable resource for future research on ovarian immune regulation and follicular dynamics in ruminants.
