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Targeting TRPV1 and TRPA1: A feasible strategy for natural herbal medicines to combat postoperative ileus
Qi Liang1, Jing-Wen Wang1, Yu-Ru Bai1
1State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China.
Abstract:
Under physiological or pathological conditions, transient receptor potential (TRP) channel vanilloid type 1 (TRPV1) and TRP ankyrin 1 (TRPA1) possess the ability to detect a vast array of stimuli and execute diverse functions. Interestingly, increasing works have reported that activation of TRPV1 and TRPA1 could also be beneficial for ameliorating postoperative ileus (POI). Increasing research has revealed that the gastrointestinal (GI) tract is rich in TRPV1/TRPA1, which can be stimulated by capsaicin, allicin and other compounds. This activation stimulates a variety of neurotransmitters, leading to increased intestinal motility and providing protective effects against GI injury. POI is the most common emergent complication following abdominal and pelvic surgery, and is characterized by postoperative bowel dysfunction, pain, and inflammatory responses. It is noteworthy that natural herbs are gradually gaining recognition as a potential therapeutic option for POI due to the lack of effective pharmacological interventions. Therefore, the focus of this paper is on the TRPV1/TRPA1 channel, and an analysis and summary of the processes and mechanism by which natural herbs activate TRPV1/TRPA1 to enhance GI motility and relieve pain are provided, which will lay the foundation for the development of natural herb treatments for this disease.
Insights
Natural compounds activating transient receptor potential vanilloid type 1 (TRPV1) and TRP ankyrin 1 (TRPA1) channels can enhance gastrointestinal motility and alleviate pain, offering a promising approach for managing postoperative ileus (POI).
Area of Science:
- Gastroenterology and Pharmacology
- Molecular and Cellular Biology
- Natural Product Research
Background:
- Postoperative ileus (POI) is a common complication after abdominal surgery, characterized by bowel dysfunction, pain, and inflammation.
- Current pharmacological interventions for POI are limited, driving interest in alternative therapeutic strategies.
- Transient receptor potential (TRP) channels, specifically TRPV1 and TRPA1, are expressed in the gastrointestinal tract and play roles in detecting stimuli and regulating functions.
Purpose of the Study:
- To investigate the role of TRPV1 and TRPA1 channels in ameliorating postoperative ileus (POI).
- To analyze the mechanisms by which natural compounds activate TRPV1 and TRPA1 to improve gastrointestinal motility and reduce pain.
- To explore the potential of natural herbs as therapeutic agents for POI by targeting TRPV1/TRPA1 pathways.
Main Methods:
- Review of existing literature on TRPV1 and TRPA1 channels in the gastrointestinal tract.
- Analysis of studies detailing the activation of TRPV1/TRPA1 by natural compounds (e.g., capsaicin, allicin).
- Examination of the downstream signaling pathways involved in neurotransmitter release and increased intestinal motility.
Main Results:
- Activation of TRPV1 and TRPA1 channels by natural compounds stimulates neurotransmitter release, enhancing intestinal motility.
- These activated channels provide protective effects against gastrointestinal injury.
- Natural herbs are increasingly recognized for their potential to activate TRPV1/TRPA1 and manage POI symptoms.
Conclusions:
- TRPV1 and TRPA1 channels are key targets for enhancing gastrointestinal function and pain relief in the context of POI.
- Natural compounds offer a promising avenue for POI treatment by modulating TRPV1/TRPA1 activity.
- Further research into natural herb-based therapies targeting TRPV1/TRPA1 could lead to effective treatments for POI.
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