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Related Concept Videos

Regulation of Angiogenesis and Blood Supply01:24

Regulation of Angiogenesis and Blood Supply

Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl hydroxylase and factor...
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Related Experiment Video

Updated: Jul 10, 2026

Implantation of Fibrin Gel on Mouse Lung to Study Lung-specific Angiogenesis
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Published on: December 21, 2014

Angiogenesis in Lung Regeneration and Aging.

Priscilla Kyi1, Mikaela Scheer1, Tadanori Mammoto1,2

  • 1Department of Pediatrics (P.K., M.S., T.M., A.M.), Medical College of Wisconsin, Milwaukee.

Arteriosclerosis, Thrombosis, and Vascular Biology
|July 9, 2026
PubMed
Summary

Aging impairs lung angiogenesis, affecting tissue repair and increasing disease risk. Understanding endothelial cell function and the mechanical environment is key for developing new lung regeneration therapies.

Keywords:
apelinarterioleshyperoxianidogenserpin

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Last Updated: Jul 10, 2026

Implantation of Fibrin Gel on Mouse Lung to Study Lung-specific Angiogenesis
07:52

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Published on: December 21, 2014

Quantifying Pulmonary Microvascular Density in Mice Across Lobules
10:00

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Published on: January 3, 2025

Angiogenesis in the Ischemic Rat Lung
07:36

Angiogenesis in the Ischemic Rat Lung

Published on: February 8, 2013

Area of Science:

  • Pulmonary Medicine
  • Vascular Biology
  • Regenerative Medicine

Background:

  • Endothelial cells are crucial for lung tissue homeostasis and regeneration via angiocrine factors.
  • Dysregulated angiogenesis contributes to disease pathogenesis, particularly in aging lungs.
  • Aging impairs angiogenic responses, hindering tissue repair and increasing susceptibility to chronic lung diseases.

Purpose of the Study:

  • To review mechanisms of endothelial cell-mediated vascular homeostasis in the lung.
  • To explore how aging dysregulates these processes and impacts lung regeneration.
  • To discuss the role of the micromechanical environment and novel investigation approaches.

Main Methods:

  • Review of existing literature on pulmonary angiogenesis, endothelial cell function, and aging.
  • Analysis of biochemical and biomechanical signaling pathways in lung vascular maintenance.
  • Summary of recent technological advancements for studying lung endothelial cells.

Main Results:

  • Endothelial cells actively regulate lung tissue architecture through angiocrine signaling.
  • Aging compromises angiogenic capacity, leading to reduced regeneration and increased disease risk.
  • Micromechanical forces significantly influence pulmonary angiogenesis.

Conclusions:

  • Maintaining vascular homeostasis by lung endothelial cells is vital for tissue regeneration.
  • Aging-induced dysregulation of angiogenesis and altered mechanical forces contribute to lung disease.
  • Novel approaches to study endothelial cell signaling offer therapeutic potential for lung repair.