Related Experiment Video
Updated: Nov 16, 2025
08:05
Optimization of Transesophageal Atrial Pacing to Assess Atrial Fibrillation Susceptibility in Mice
Published on: June 29, 2022
3.2K
WNT signaling in atrial fibrillation
Carmen Wolke1, Elmer Antileo1, Uwe Lendeckel1
1Institute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, Greifswald D-17475, Germany.
Experimental Biology and Medicine (Maywood, N.J.)
|March 1, 2021
Summary
The Wnt signaling pathway is crucial for heart development and repair. This study investigates its role in atrial fibrillation, examining Wnt component expression in patient heart tissue.
Area of Science:
- Cardiovascular Biology
- Molecular Signaling
- Regenerative Medicine
Background:
- The Wnt signaling pathway is vital for embryonic development, tissue homeostasis, and repair.
- It plays a key role in heart development, including cardiomyocyte proliferation and differentiation.
- Emerging research suggests a link between Wnt signaling and atrial fibrillation (AF).
Purpose of the Study:
- To investigate the expression of Wnt signaling components in atrial tissue from patients with atrial fibrillation versus sinus rhythm.
- To summarize current knowledge on Wnt signaling regulation and its contribution to AF development, maintenance, and progression.
Main Methods:
- Analysis of Wnt signaling component expression in human atrial biopsies.
- Literature review of Wnt pathway regulation in the context of cardiac function and AF.
Main Results:
- Original data on differential expression of Wnt pathway components in AF and sinus rhythm atria.
- Comprehensive summary of Wnt signaling's multifaceted role in AF pathophysiology.
Conclusions:
- Wnt signaling components are dysregulated in atrial fibrillation.
- Understanding Wnt pathway modulation offers potential therapeutic targets for atrial fibrillation.
Related Concept Videos
02:54Canonical Wnt Signaling Pathway
9.5K
The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which...
9.5K
01:41Non-Canonical Wnt Signaling Pathways
7.9K
Wnt is a zygotic effect gene that is expressed during very early embryonic development. It regulates various processes in animals starting from early development through the adult stage, such as organogenesis in the embryo and maintenance of neuronal and blood stem cells. Wnt proteins can induce a wide variety of intracellular pathways depending upon the specific abilities of different Wnt ligands to form a complex with shared and cognate receptors in the presence of different co-receptors. The...
7.9K
01:17Intracellular Signaling Affects Focal Adhesions
3.2K
Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
Some...
3.2K
01:25ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias
253
Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
253