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Proteomic Analysis and Reprogramming Potential of the Porcine Intra-Ooplasmic Nanovesicles.
Islam M Saadeldin1,2, Seonggyu Bang1, Abdulkadir Y Maigoro3
1Laboratory of Theriogenology, College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea.
Cellular Reprogramming
|September 19, 2023
Summary
Mature oocytes contain intra-ooplasmic vesicles (IOVs) with reprogramming potential. IOVs promote pluripotency and epithelial-to-mesenchymal transition in fibroblasts, suggesting applications in stem cell generation.
Area of Science:
- Cell Biology
- Reproductive Biology
- Nanotechnology
Background:
- Oocytes possess inherent reprogramming capabilities.
- Somatic cell reprogramming is crucial for regenerative medicine.
- Nanovesicles are emerging as key mediators in cellular communication.
Purpose of the Study:
- To isolate and characterize novel nanovesicles from porcine oocytes.
- To investigate the protein composition and biological functions of these vesicles.
- To explore their potential in inducing cellular reprogramming and epithelial-to-mesenchymal transition.
Main Methods:
- Isolation and characterization of intra-ooplasmic vesicles (IOVs) using nanometry.
- Proteomic analysis to identify key proteins within IOVs.
- In vitro culture of fibroblasts with IOVs to assess pluripotency and EMT markers.
Main Results:
- IOVs were isolated with an average diameter of 186.3 nm.
- Proteomic analysis identified proteins involved in reprogramming, stress response, and metabolism.
- IOV treatment induced OCT4, CDX2, KLF4, SALL4, ZEB2, and YBX3 expression in fibroblasts.
Conclusions:
- Intra-ooplasmic vesicles (IOVs) represent a novel class of nanovesicles with significant reprogramming potential.
- IOVs can induce pluripotency and epithelial-to-mesenchymal transition (EMT) in somatic cells.
- Further research into IOVs may lead to advancements in generating induced pluripotent or oligopotent stem cells.
