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Related Concept Videos

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The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
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Author Correction: Towards a reference cell atlas of liver diversity over the human lifespan.

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Updated: Apr 21, 2026

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Vascular patterning sets the stage for macro and micro hepatic architecture.

Ashley E Cast1, Teagan J Walter, Stacey S Huppert

  • 1Division of Gastroenterology, Hepatology, and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.

Developmental Dynamics : an Official Publication of the American Association of Anatomists
|November 6, 2014
PubMed
Summary

Understanding liver cell identity and tissue architecture is key for developing new therapies for chronic liver disease. This research reviews signals regulating liver cell fates for improved regeneration and treatment options.

Keywords:
hepatic cell lineage plasticityhepatic vasculatureoxygen gradients

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Area of Science:

  • Hepatology
  • Developmental Biology
  • Regenerative Medicine

Background:

  • The liver's complex architecture is vital for metabolic and detoxification functions.
  • Impaired liver function, leading to chronic liver disease, can result from various factors.
  • Current treatments for chronic liver disease are limited, with orthotopic liver transplantation being a primary option.

Purpose of the Study:

  • To review signals regulating liver cell fates during development and regeneration.
  • To highlight the importance of hepatic vascular system patterning for liver architecture.
  • To explore potential therapeutic strategies involving genetic and cellular therapies.

Main Methods:

  • Review of existing literature on liver development and regeneration.
  • Analysis of signaling pathways that control hepatic cell identities.
  • Discussion of vascular patterning in the context of liver architecture.

Main Results:

  • Identified key signals regulating liver cell identities.
  • Emphasized the role of vascular patterning in establishing hepatic architecture.
  • Highlighted the potential of progenitor cell activation for liver regeneration.

Conclusions:

  • Understanding developmental and regenerative signaling is crucial for advancing liver disease therapies.
  • Targeting progenitor cell activation offers promising avenues for de novo tissue regeneration.
  • Hepatic vascular system development is fundamental for overall liver structure and function.