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Related Concept Videos

Overview of the Vascular System01:20

Overview of the Vascular System

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The vascular system comprises an extensive network of arteries, capillaries, and veins. The vascular system can be broadly divided into the blood and lymphatic systems. Typically, blood vessels can be categorized into three histological regions: tunica intima, tunica media, and tunica adventitia. The tunica intima consists of a single layer of endothelial cells attached to the basal lamina. Underlying the basal lamina is a connective tissue layer and an elastic lamina that gives stability and...
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Regulation of Angiogenesis and Blood Supply01:24

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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...
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Vascular resistance is a critical concept in understanding blood flow dynamics in the circulatory system. It refers to the resistance that blood encounters as it flows through the blood vessels. This resistance is a key factor in determining blood pressure and cardiac workload.
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DNA Microarrays02:34

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Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...
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Related Experiment Video

Updated: Sep 22, 2025

Comprehensive Workflow for the Genome-wide Identification and Expression Meta-analysis of the ATL E3 Ubiquitin Ligase Gene Family in Grapevine
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Molecular analysis of vascular gene expression.

Martijn A Van der Ent1, David Svilar2,3, Audrey C A Cleuren3,4

  • 1Department of Microbiology and Immunology University of Michigan Ann Arbor Michigan USA.

Research and Practice in Thrombosis and Haemostasis
|May 23, 2022
PubMed
Summary

Recent advances in molecular analysis reveal endothelial cell (EC) heterogeneity and its role in vascular gene expression. Understanding ECs is crucial for developing therapeutics for diseases like sepsis and COVID-19.

Keywords:
coagulationendothelial cellsgene expressionhigh‐throughput sequencinginflammation

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Area of Science:

  • Vascular Biology
  • Molecular Medicine
  • Genomics

Background:

  • Endothelial cells (ECs) are vital for maintaining tissue homeostasis and host defense.
  • ECs exhibit diverse phenotypes influenced by their microenvironment.
  • EC dysfunction contributes to thrombotic disorders and inflammatory diseases.

Purpose of the Study:

  • To summarize recent advancements in the molecular analysis of vascular gene expression presented at the 2021 ISTH Congress.
  • To highlight the role of endothelial cell heterogeneity in (patho)physiological conditions.
  • To discuss the implications for developing therapeutics for diseases affecting the endothelium.

Main Methods:

  • High-throughput sequencing technologies for isolating and analyzing ECs from native tissues.
  • Single-cell resolution sequencing to understand EC heterogeneity.
  • Spatial transcriptomics to visualize RNA transcripts within tissue sections.

Main Results:

  • Technological advancements are elucidating the molecular mechanisms behind EC heterogeneity.
  • New data presented at the 2021 ISTH Congress focus on ECs in infectious diseases, including sepsis and COVID-19.
  • EC dysfunction can lead to a procoagulant, proinflammatory state with increased vascular permeability.

Conclusions:

  • Understanding molecular mechanisms of EC function is critical for therapeutic development.
  • Endothelial cell heterogeneity plays a significant role in vascular health and disease.
  • Further research into ECs is essential for combating thrombotic and infectious diseases.