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Related Concept Videos

Hypoxia01:23

Hypoxia

1.9K
Hypoxia is a medical condition characterized by an inadequate oxygen supply to body tissues. It typically manifests as a bluish discoloration of the skin and mucosae, especially in fair-skinned individuals, when hemoglobin (Hb) saturation drops below 75%.
Types of Hypoxia
There are four primary types of hypoxia, each resulting from a different cause:
1. Anemic hypoxia: This type occurs due to insufficient oxygen delivery caused by a lack of red blood cells (RBCs) or RBCs with abnormal or...
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Introduction to the Cytoskeleton01:33

Introduction to the Cytoskeleton

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Overview of the Cytoskeleton
The cytoskeleton is a network of protein filaments present within the cell, having three distinct filaments ̶   microfilaments, microtubules, and intermediate filaments. Each has characteristic features that distinguish them, including the dynamics of their assembly and disassembly, mechanical properties, polarity, and the type of molecular motors associated with them. Earlier, they were thought to be present only in eukaryotic cells; however, their...
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Cytoplasm01:24

Cytoplasm

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The cytoplasm consists of organelles and a framework of protein scaffolds called the cytoskeleton suspended in an aqueous solution, the cytosol. The cytosol is a rich broth of water, ions, salts, and various organic molecules.
Protein Folding and Misfolding
The cytoplasm is the location for several cellular processes, including protein synthesis and folding. The aqueous nature of the cytosol promotes protein folding such that the hydrophobic amino acid side chains are buried in the protein...
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Cytoplasm01:16

Cytoplasm

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The cytoplasm consists of organelles and a framework of protein scaffolds called the cytoskeleton suspended in an aqueous solution, the cytosol. The cytosol is a rich broth of water, ions, salts, and various organic molecules.
Protein Folding and Misfolding
The cytoplasm is the location for several cellular processes, including protein synthesis and folding. The aqueous nature of the cytosol promotes protein folding such that the hydrophobic amino acid side chains are buried in the protein...
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Adaptive Mechanisms in Cancer Cells02:53

Adaptive Mechanisms in Cancer Cells

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Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
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Regulation of Angiogenesis and Blood Supply01:24

Regulation of Angiogenesis and Blood Supply

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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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Updated: Jan 15, 2026

Co-immunoprecipitation Assay Using Endogenous Nuclear Proteins from Cells Cultured Under Hypoxic Conditions
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Co-immunoprecipitation Assay Using Endogenous Nuclear Proteins from Cells Cultured Under Hypoxic Conditions

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Hypoxia and the cytoskeleton.

Darragh Flood1, Cormac T Taylor1

  • 1Conway Institute of Biomolecular and Biomedical Research and School of Medicine, University College Dublin, Belfield, Dublin, Ireland.

The Journal of Physiology
|October 14, 2025
PubMed
Summary
This summary is machine-generated.

Hypoxia, a condition of low oxygen, significantly impacts the cytoskeleton, a crucial cell structure. Understanding these effects is key to addressing diseases linked to cellular dysfunction.

Keywords:
actincell physiologycytoskeletonhypoxiahypoxia‐inducible factorintermediate filamentsmicrotubulesmolecular physiology

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Area of Science:

  • Cell Biology
  • Pathophysiology

Background:

  • The cytoskeleton is essential for cellular function and homeostasis.
  • Cytoskeletal regulation under physiological conditions is well-studied.
  • The impact of pathological stimuli, like hypoxia, on the cytoskeleton and disease is less understood.

Purpose of the Study:

  • To review the known effects of hypoxia on the cytoskeleton.
  • To discuss the implications of these effects for cellular physiology and disease.

Main Methods:

  • Literature review of studies on hypoxia and the cytoskeleton.

Main Results:

  • Hypoxia alters cytoskeletal dynamics and organization.
  • These alterations contribute to cellular dysfunction in pathological conditions.

Conclusions:

  • Hypoxia-induced cytoskeletal changes are significant in diseases like cancer and inflammation.
  • Further research is needed to fully elucidate these mechanisms and potential therapeutic targets.