Related Experiment Video
Updated: Nov 17, 2025
08:12
A Web-Based Workflow for Selecting Gene- and Tissue-Specific Enhancers
Published on: July 18, 2025
414
The Role of Tbx20 in Cardiovascular Development and Function
Yuwen Chen1,2, Deyong Xiao2, Lu Zhang2
1Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, China.
Frontiers in Cell and Developmental Biology
|February 15, 2021
Summary
T-box 20 (Tbx20) is crucial for heart development and function. Mutations in TBX20 cause congenital heart defects, dilated cardiomyopathy, and arrhythmias, highlighting its vital role in cardiovascular health.
Area of Science:
- Cardiovascular Biology
- Developmental Biology
- Genetics
Background:
- T-box 20 (Tbx20) is a key transcription factor in the Tbx1 subfamily.
- It plays essential roles in cardiovascular development, homeostasis, and remodeling.
- TBX20 mutations are linked to congenital heart defects (CHDs) and other cardiac conditions.
Purpose of the Study:
- To review the critical functions of Tbx20 in cardiac development and homeostasis.
- To summarize recent findings on Tbx20's role in heart function and disease.
Main Methods:
- This is a review article, summarizing existing research.
- Literature search and synthesis of findings on Tbx20 function and mutations.
Main Results:
- Tbx20 regulates chamber septation, growth, and valvulogenesis.
- Genetic variants of TBX20 are associated with dilated cardiomyopathy and arrhythmias.
- Broad expression in cardiogenic lineages underlies its diverse functions.
Conclusions:
- Tbx20 is indispensable for normal cardiac morphogenesis and function.
- Dysregulation of Tbx20 contributes to a spectrum of human heart diseases.
- Further understanding of Tbx20 is crucial for addressing cardiovascular pathologies.
Related Concept Videos
01:27Regulation of the Cardiovascular System
2.9K
The regulation of the cardiovascular system allows the body to adapt to various demands and maintain homeostasis.
The regulation of the cardiovascular system involves the autonomic nervous system (ANS), baroreceptors, and chemoreceptors, ensuring that heart rate and blood pressure are appropriately modulated in response to varying physiological demands.
The ANS comprises two main divisions: the sympathetic and parasympathetic nervous systems. The sympathetic nervous system enhances...
The regulation of the cardiovascular system involves the autonomic nervous system (ANS), baroreceptors, and chemoreceptors, ensuring that heart rate and blood pressure are appropriately modulated in response to varying physiological demands.
The ANS comprises two main divisions: the sympathetic and parasympathetic nervous systems. The sympathetic nervous system enhances...
2.9K
01:24Regulation of Angiogenesis and Blood Supply
3.0K
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...
3.0K
01:30General Transcription Factors
6.3K
Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
6.3K
01:27Development of the Heart
1.6K
The development of the human heart, a crucial organ, commences from the mesoderm on the 18th or 19th day after fertilization. This process initiates in the cardiogenic area, a group of mesodermal cells at the embryo's head end, which evolves into elongated strands known as cardiogenic cords. These cords undergo a transformation to form hollow-centered endocardial tubes.
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart...
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart...
1.6K
01:07Development of Blood Vessels
1.1K
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.
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
1.1K
01:31Regulation of Heart Rates
3.2K
The regulation of heart rate is a complex process controlled by the autonomic nervous system (ANS), hormonal influences, and intrinsic cardiac mechanisms. The ANS has two main components: the sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS).
The SNS increases heart rate through the release of norepinephrine and epinephrine, which act on beta-1 adrenergic receptors in the heart. This action increases the rate of depolarization in the sinoatrial (SA) node, the heart's...
The SNS increases heart rate through the release of norepinephrine and epinephrine, which act on beta-1 adrenergic receptors in the heart. This action increases the rate of depolarization in the sinoatrial (SA) node, the heart's...
3.2K