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Updated: May 13, 2026
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Preparation of Mouse Embryonic Fibroblast Cells Suitable for Culturing Human Embryonic and Induced Pluripotent Stem Cells
Published on: June 21, 2012
Embryonic fibroblasts represent a connecting link between mesenchymal and embryonic stem cells
Batul Yusuf1, Renjitha Gopurappilly, Nidheesh Dadheech
1Manipal Institute of Regenerative Medicine, Manipal University Branch Campus, Yelahanka, Bangalore, 560 065, Karnataka, India.
Development, Growth & Differentiation
|February 28, 2013
Summary
Mouse embryonic fibroblasts (MEFs) exhibit pluripotency, expressing stem cell markers and differentiating into all three germ layers. This suggests MEFs are a versatile model for regenerative medicine research.
Area of Science:
- Stem Cell Biology
- Developmental Biology
- Regenerative Medicine
Background:
- Fibroblasts and mesenchymal stem cells (MSCs) share characteristics, but fibroblast versatility beyond multipotency is understudied.
- Mouse embryonic fibroblasts (MEFs) are commonly used as feeder layers for embryonic stem cells (ESCs).
- Hypothesis: MEFs may retain ES-like features alongside their multipotent nature.
Purpose of the Study:
- To comparatively assess MEFs and ESCs for differentiation potential beyond mesoderm.
- To evaluate the teratoma formation capacity of MEFs.
- To explore MEFs as a potential model for regenerative medicine.
Main Methods:
- MEFs derived from E13.5 embryos via trypsin/EDTA digestion.
- In vitro culture, hanging drop method for aggregate formation.
- Flow cytometry, RT-PCR, and immunocytochemistry for marker analysis.
- In vivo teratoma formation assay in Balb/c mice.
Main Results:
- MEFs expressed key MSC markers (CD90, CD73, Sca-1, CD44, CD29, Vimentin) and pluripotency markers (SSEA-1, Oct-4, Nanog, Sox-2, ABCG2).
- MEFs expressed markers for all three germ layers: ectoderm (Nestin, β-III tubulin, Otx-2), mesoderm (MEF-2, Mesp2, GATA-2), and endoderm (GATA-4, α-amylase, PDX-1).
- Transplantation of MEFs resulted in teratomas containing tissues from ectoderm, mesoderm, and endoderm.
Conclusions:
- MEFs demonstrate pluripotency, expressing stem cell and tri-lineage differentiation markers.
- MEFs possess the capacity to form teratomas, indicating pluripotency.
- MEFs are a readily available, low-maintenance model with potential applications in regenerative medicine.
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