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Genetic research

Isolation and Immortalization of Human Portal Vein Endothelial Cells: A Novel Tool for Studying Splanchnic Vascular Diseases

Strategic Insights

— 1 min read

Researchers at Hospital Clinic in Barcelona, Spain, have successfully isolated, characterized, and immortalized primary human portal vein endothelial cells (PVECs), creating a novel platform for studying splanchnic vascular diseases. This breakthrough has significant implications for understanding the mechanisms of vascular dysfunction in liver disease and developing new treatments for portal hypertension and related complications.

Key Takeaways:

  • Researchers successfully isolated and characterized PVECs from human portal vein tissue, which retained classical endothelial morphology and functionality.
  • The immortalized PVECs (iPVECs) retained endothelial identity and preserved the PVEC-specific transcriptomic traits across more than 20 passages.
  • The study established a novel tool for studying splanchnic vascular diseases, enabling investigation of vascular dysfunction mechanisms in liver disease and supporting translational research.
  • PVECs exhibited a distinct transcriptomic profile from inferior cava vein endothelial cells (ICVECs) and systemic endothelial cells (ECs), enriched in pathways for vascular remodeling and stress response.
  • The researchers demonstrated that iPVECs are a valuable resource for studying vascular remodeling and stress responses in liver disease and developing new treatments for portal hypertension and related complications.
  • The study provides new insights into the mechanisms of vascular dysfunction in liver disease and highlights the importance of studying splanchnic vascular biology.
  • The immortalization of PVECs with lentiviral particles expressing the SV40 large T-antigen resulted in iPVECs that retained endothelial identity and preserved the PVEC-specific transcriptomic traits across more than 20 passages.
  • The study demonstrated that iPVECs are a renewable and disease-relevant platform for studying splanchnic vascular diseases, enabling mechanistic discovery and drug testing.

Statistics:

  • 12 primary human portal vein endothelial cells (PVECs) were isolated from human portal vein tissue using trypsinization, mechanical scratching, and FACS.
  • 9 inferior cava vein endothelial cells (ICVECs) were isolated from human inferior cava vein tissue.
  • 20 passages were required to assess the stability of the transcriptomic traits in immortalized PVECs (iPVECs).
  • The study provided new insights into the mechanisms of vascular dysfunction in liver disease and highlighted the importance of studying splanchnic vascular biology.

Sources:

  • Hospital Clinic, Barcelona, Spain
  • Elsevier (publisher of JHEP Reports)
  • Yiliam Fundora (Department of Surgery, Division of Hepatobiliary and General Surgery, Institut de Malalties Digestives I Metaboliques (IMDiM), Hospital Clinic, Barcelona, Spain)
  • Aina Anton, Sarah Shalaby, Julia Campalans, Annabel Blasi, Rosa Montanes, Hector Garcia-Caldero, Lixin Sun, Joana Codina, Josepmaria Argemi, Olga Tura-Ceide, Joan Carles Garcia-Pagan, Genis Camprecios, Virginia Hernandez-Gea (additional authors)
  • NewsRx LLC (publisher of Biotech Week)

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