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Updated: May 16, 2026

Measurements of Physiological Stress Responses in C. Elegans
Published on: May 21, 2020
Disease progression mediated by egr-1 associated signaling in response to oxidative stress
Judith-Irina Pagel1, Elisabeth Deindl
1Walter-Brendel-Centre of Experimental Medicine, Ludwig-Maximilians-University, Munich D-81377, Germany. judith.pagel@med.uni-muenchen.de.
Abstract:
When cellular reducing enzymes fail to shield the cell from increased amounts of reactive oxygen species (ROS), oxidative stress arises. The redox state is misbalanced, DNA and proteins are damaged and cellular transcription networks are activated. This condition can lead to the initiation and/or to the progression of atherosclerosis, tumors or pulmonary hypertension; diseases that are decisively furthered by the presence of oxidizing agents. Redox sensitive genes, like the zinc finger transcription factor early growth response 1 (Egr-1), play a pivotal role in the pathophysiology of these diseases. Apart from inducing apoptosis, signaling partners like the MEK/ERK pathway or the protein kinase C (PKC) can activate salvage programs such as cell proliferation that do not ameliorate, but rather worsen their outcome. Here, we review the currently available data on Egr-1 related signal transduction cascades in response to oxidative stress in the progression of epidemiologically significant diseases. Knowing the molecular pathways behind the pathology will greatly enhance our ability to identify possible targets for the development of new therapeutic strategies.
Insights
Oxidative stress disrupts cellular redox balance, damaging DNA and proteins. This review explores how the transcription factor early growth response 1 (Egr-1) drives disease progression, highlighting therapeutic targets.
Area of Science:
- Biochemistry
- Molecular Biology
- Pathophysiology
Background:
- Oxidative stress occurs when reactive oxygen species (ROS) overwhelm cellular defenses, leading to redox imbalance.
- This imbalance damages cellular components like DNA and proteins, activating transcription networks.
- Oxidative stress is implicated in the progression of diseases such as atherosclerosis, tumors, and pulmonary hypertension.
Purpose of the Study:
- To review current data on early growth response 1 (Egr-1) signaling pathways in response to oxidative stress.
- To elucidate the role of Egr-1 in the pathophysiology of significant diseases.
- To identify potential therapeutic targets for oxidative stress-related diseases.
Main Methods:
- Literature review of existing research on Egr-1 and oxidative stress.
- Analysis of signal transduction cascades involving Egr-1, MEK/ERK, and protein kinase C (PKC).
- Examination of Egr-1's role in disease progression, including apoptosis and cell proliferation.
Main Results:
- Egr-1 is a redox-sensitive gene crucial in disease progression.
- Signaling pathways like MEK/ERK and PKC activate Egr-1.
- Egr-1 activation can lead to apoptosis or detrimental cell proliferation.
Conclusions:
- Understanding Egr-1-mediated signaling in oxidative stress is key to disease pathology.
- Egr-1 plays a pivotal role in diseases exacerbated by oxidizing agents.
- Identifying molecular pathways involving Egr-1 can lead to novel therapeutic strategies.
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