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TRP Channels in Tumoral Processes Mediated by Oxidative Stress and Inflammation
Florentina Piciu1, Mihaela Balas2, Madalina Andreea Badea2,3
1Department of Anatomy, Animal Physiology and Biophysics (DAFAB), Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania.
Abstract:
The channels from the superfamily of transient receptor potential (TRP) activated by reactive oxygen species (ROS) can be defined as redox channels. Those with the best exposure of the cysteine residues and, hence, the most sensitive to oxidative stress are TRPC4, TRPC5, TRPV1, TRPV4, and TRPA1, while others, such as TRPC3, TRPM2, and TRPM7, are indirectly activated by ROS. Furthermore, activation by ROS has different effects on the tumorigenic process: some TRP channels may, upon activation, stimulate proliferation, apoptosis, or migration of cancer cells, while others inhibit these processes, depending on the cancer type, tumoral microenvironment, and, finally, on the methods used for evaluation. Therefore, using these polymodal proteins as therapeutic targets is still an unmet need, despite their draggability and modulation by simple and mostly unharmful compounds. This review intended to create some cellular models of the interaction between oxidative stress, TRP channels, and inflammation. Although somewhat crosstalk between the three actors was rather theoretical, we intended to gather the recently published data and proposed pathways of cancer inhibition using modulators of TRP proteins, hoping that the experimental data corroborated clinical information may finally bring the results from the bench to the bedside.
Insights
Reactive oxygen species (ROS) activate transient receptor potential (TRP) channels, influencing cancer cell behavior. Targeting these redox channels offers a promising therapeutic strategy for cancer inhibition.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Background:
- Transient Receptor Potential (TRP) channels are activated by reactive oxygen species (ROS), acting as redox sensors.
- Specific TRP channels (TRPC4, TRPC5, TRPV1, TRPV4, TRPA1) are directly sensitive to oxidative stress, while others (TRPC3, TRPM2, TRPM7) are indirectly activated.
- ROS-mediated TRP channel activation has complex, context-dependent effects on cancer cell proliferation, apoptosis, and migration.
Purpose of the Study:
- To explore the intricate interplay between oxidative stress, TRP channels, and inflammation in cancer.
- To review recent data and propose cancer inhibition pathways utilizing TRP protein modulators.
- To bridge the gap between experimental findings and clinical applications for TRP-targeted cancer therapies.
Main Methods:
- Literature review of recently published data on TRP channels, oxidative stress, and cancer.
- Analysis of cellular models and proposed pathways for cancer inhibition.
- Discussion of the therapeutic potential of TRP channel modulators.
Main Results:
- TRP channels exhibit diverse roles in cancer progression, either promoting or inhibiting tumorigenesis.
- Modulation of TRP channels by ROS is influenced by cancer type, microenvironment, and experimental methods.
- TRP channels represent potential therapeutic targets due to their druggability and modulation by simple compounds.
Conclusions:
- Targeting TRP channels offers a promising avenue for cancer therapy.
- Further research integrating experimental and clinical data is needed to translate bench findings to bedside applications.
- Understanding the redox-channel-inflammation axis is crucial for developing effective cancer treatments.
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