Function and therapeutic potential of transient receptor potential ankyrin 1 in fibrosis

Yicheng Wei1,2,3, Jialuo Cai3,4, Ruiqiu Zhu2,3

  • 1Third Affiliated Hospital of Shanghai University/Wenzhou People's Hospital, Wenzhou, China.

Frontiers in Pharmacology
|October 24, 2022
PubMed

Insights

Transient receptor potential ankyrin 1 (TRPA1) channels play a key role in fibroblast activation and fibrosis. Targeting TRPA1 shows promise as an adjuvant therapy for treating fibrotic diseases.

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Immunology

Background:

  • The Transient Receptor Potential (TRP) superfamily comprises cation channels with diverse cellular functions.
  • TRPA1 (transient receptor potential ankyrin 1) is a TRP channel involved in cellular signaling, particularly calcium influx.
  • Fibroblasts are crucial cells in tissue repair and fibrosis, and their activation is central to fibrotic diseases.

Purpose of the Study:

  • To review the multifaceted role of TRPA1 in fibroblast activation and its implications in fibrosis.
  • To elucidate the interaction between TRPA1 and inflammatory factors in driving fibroblast-mediated fibrosis.
  • To highlight TRPA1 as a potential therapeutic target for managing fibrotic conditions across various organs.

Main Methods:

  • Literature review focusing on studies investigating TRPA1 function in fibroblasts.
  • Analysis of the mechanisms linking TRPA1 activation to inflammatory responses and fibrosis.
  • Examination of existing clinical trial data on TRPA1 as a therapeutic strategy.

Main Results:

  • TRPA1 channels are expressed in fibroblasts and influence their activation state.
  • Interactions between TRPA1 and inflammatory mediators contribute to fibroblast-driven fibrosis.
  • TRPA1 exhibits organ-specific roles in fibrotic processes.

Conclusions:

  • TRPA1 is a significant regulator of fibroblast function in the context of fibrosis.
  • TRPA1 represents a promising therapeutic target for treating inflammatory and immune-mediated fibrotic diseases.
  • Clinical evidence supports TRPA1's potential as an adjuvant therapy for fibrosis.

Related Concept Videos

Intracellular Signaling Affects Focal Adhesions01:17

Intracellular Signaling Affects Focal Adhesions

Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
2.8K
Transducer Mechanism: Enzyme-Linked Receptors01:27

Transducer Mechanism: Enzyme-Linked Receptors

Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:
2.7K
TGF - β Signaling Pathway01:16

TGF - β Signaling Pathway

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...
7.6K
Enzyme-linked Receptors01:00

Enzyme-linked Receptors

Enzyme-linked receptors are proteins that act as both receptor and enzyme, activating multiple intracellular signals. This is a large group of receptors that include the receptor tyrosine kinase (RTK) family. Many growth factors and hormones bind to and activate the RTKs.
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
79.4K
Introduction to Fibroblasts01:09

Introduction to Fibroblasts

Rudolph Virchow discovered spindle-shaped cells called fibroblasts in 1858. Inactive fibroblasts, called fibrocytes, become activated by various stimuli, such as growth factors and inflammatory cytokines. Activated fibroblasts play a crucial role in wound healing, inflammation, formation of new blood vessels, and cancer progression. Uncontrolled activation of fibroblasts results in fibrosis, the excess deposition of fibrous tissue, which can lead to scarring and affect normal organs. This...
3.2K