Related Experiment Video
Updated: Jan 21, 2026
06:54
Studying TGF-β Signaling and TGF-β-induced Epithelial-to-mesenchymal Transition in Breast Cancer and Normal Cells
Published on: October 27, 2020
14.3K
TGF-β2 antagonizes IL-6-promoted cell survival.
Yuping Du1, Jingjie Sun1, Xinning Liu2
1School of Life Science, Lanzhou University, Lanzhou, 73000, Gansu, People's Republic of China.
Molecular and Cellular Biochemistry
|July 31, 2019
Summary
Transforming growth factor beta (TGF-β2) inhibits interleukin-6 (IL-6) signaling, antagonizing IL-6’s anti-apoptotic effects. This study reveals TGF-β2 as a negative regulator of IL-6 pathways, impacting cell survival.
Area of Science:
- Immunology
- Cell Biology
- Molecular Biology
Background:
- Transforming growth factor beta (TGF-β) is implicated in fibrosis.
- Interleukin-6 (IL-6) is crucial for inflammation regulation.
- Both cytokines influence angiogenesis, cell survival, and apoptosis, with TGF-β2 inducing apoptosis and IL-6 promoting cell survival.
Purpose of the Study:
- To investigate the interaction between TGF-β2 and IL-6 signaling pathways.
- To determine the effect of TGF-β2 on IL-6-induced STAT3 activation.
- To elucidate the role of TGF-β2 in regulating IL-6's impact on cell survival and apoptosis.
Main Methods:
- Assessed TGF-β2's effect on IL-6 signaling.
- Measured STAT3 activation and SOCS3 expression.
- Analyzed cell survival and apoptosis following γ-irradiation and UV light exposure.
Main Results:
- TGF-β2 strongly inhibited IL-6-induced STAT3 activation.
- TGF-β2 synergized with IL-6 to enhance SOCS3 expression.
- IL-6 slowed TGF-β2 mRNA decay.
- TGF-β2 antagonized IL-6's anti-apoptotic effects in response to γ-irradiation and UV light.
Conclusions:
- TGF-β2 acts as a negative regulator of IL-6 signaling.
- TGF-β2 counteracts the cell survival-promoting and anti-apoptotic functions of IL-6.
- These findings highlight a complex interplay between TGF-β2 and IL-6 in cellular responses.
Related Concept Videos
01:14Agonism and Antagonism: Quantification
1.0K
When drugs are administered, they can elicit either an agonist or antagonist effect on the body. Agonism occurs when a drug activates a specific receptor, triggering a biological response. On the other hand, antagonism happens when a drug binds to the same receptors but blocks their activation, thereby preventing a biological response.
To quantify these effects, researchers use a dose-response curve, which provides valuable information about the potency and efficacy of a drug. Potency refers to...
To quantify these effects, researchers use a dose-response curve, which provides valuable information about the potency and efficacy of a drug. Potency refers to...
1.0K
01:30Combined Effects of Drugs: Antagonism
11.6K
The combined effects of drugs can result in various interactions, of which an important type is antagonism. Antagonism is a mechanism where one drug inhibits or counteracts the effects of another drug. Antagonism can occur through various means, including receptor binding, allosteric modulation, functional interaction, chemical reactions, and pharmacokinetic processes.
The most common type is receptor antagonism, where one drug acts as an antagonist to block the effects of another drug by...
The most common type is receptor antagonism, where one drug acts as an antagonist to block the effects of another drug by...
11.6K
02:40The Eukaryotic Promoter Region
18.7K
The eukaryotic promoter region is a segment of DNA located upstream of a gene. It contains an RNA polymerase binding site, a transcription start site, and several cis-regulatory sequences. The proximal promoter region is located in the vicinity of the gene and has cis-regulatory sequences and the core promoter. The core promoter is the binding site for RNA polymerase and is usually located between -35 and +35 nucleotides from the transcription start site. The distal promoter regions are...
18.7K
01:16TGF - β Signaling Pathway
10.5K
The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
10.5K
01:19Survival Tree
393
Survival trees are a non-parametric method used in survival analysis to model the relationship between a set of covariates and the time until an event of interest occurs, often referred to as the "time-to-event" or "survival time." This method is particularly useful when dealing with censored data, where the event has not occurred for some individuals by the end of the study period, or when the exact time of the event is unknown.
Building a Survival Tree
Constructing a...
Building a Survival Tree
Constructing a...
393
01:18Survival Curves
665
Survival curves are graphical representations that depict the survival experience of a population over time, offering an intuitive way to track the proportion of individuals who remain event-free at each time point. These curves are widely used in fields such as medicine, public health, and reliability engineering to visualize and compare survival probabilities across different groups or conditions.
The Kaplan-Meier estimator is the most common method for constructing survival curves. This...
The Kaplan-Meier estimator is the most common method for constructing survival curves. This...
665