Proteomic Landscape of Porcine Induced Neural Stem Cell Reprogramming and Differentiation Unveiled

Strategic Insights -

A recent study published in PeerJ has shed light on the molecular mechanisms underlying porcine fibroblast-to-induced neural stem cell (iNSC) reprogramming and differentiation in a large animal model. Researchers at Mahidol University, led by Sekkarin Ploypetch, conducted an in-depth analysis of the proteomic landscapes associated with these processes. Their findings have significant implications for regenerative medicine and comparative neuroscience efforts.

Key Takeaways:

  • The study revealed distinct proteomic signatures separating fibroblasts, iNSCs, and their neuronal/glial progeny, indicating a dismantling of the fibroblast cytoskeleton and a broad upregulation of cellular energy and biosynthetic metabolism.
  • The proteomic shift from the fibroblast to the iNSC state was marked by increased expression of 15 proteins, including stathmin 1 (STMN1), neurofilament light polypeptide (NEFL), and electron transfer flavoprotein subunit beta (ETFB).
  • Upon differentiation into piNSCs-NGs, 19 proteins were consistently upregulated, including neuronal structural proteins (INA, STMN1), cytoskeletal regulators (PFN1), and signaling modulators (MBIP).
  • Pathway and network analyses highlighted post-transcriptional regulation, particularly involving RNA processing and the RNA exosome complex, as a key feature of differentiation.
  • The study provides the first comprehensive proteomic map of piNSC reprogramming and differentiation in a large animal model, uncovering critical regulatory proteins and pathways governing cytoskeletal organization, metabolism, and RNA processing.

Statistics:

  • A total of 4,094 proteins were identified across the three cell states (fibroblasts, iNSCs, and their neuronal/glial progeny).
  • The pie chart showing the top 10 proteins upregulated upon differentiation into piNSCs-NGs is presented in the original study (PeerJ, 2025,13():e20120).
  • The study demonstrates a significant increase in the expression of proteins related to neural cell development, such as STMN1 (upregulation of 3.5-fold), NEFL (upregulation of 2.8-fold), and ETFB (upregulation of 2.2-fold).

Sources:

  • Proteomic landscape of porcine induced neural stem cell reprogramming and differentiation (PeerJ, 2025,13():e20120)
  • Mahidol University
  • Department of Clinical Sciences and Public Health, Faculty of Veterinary Sciences
  • Sekkarin Ploypetch et al. (2025). "Proteomic landscape of porcine induced neural stem cell reprogramming and differentiation." PeerJ, 13(), e20120.