Related Experiment Video

Updated: Apr 25, 2026

Yeast Luminometric and Xenopus Oocyte Electrophysiological Examinations of the Molecular Mechanosensitivity of TRPV4
12:09

Yeast Luminometric and Xenopus Oocyte Electrophysiological Examinations of the Molecular Mechanosensitivity of TRPV4

Published on: December 31, 2013

9.8K

Keratinocyte growth regulation TRP-ed up over downregulated TRPV4?

Wolfgang Liedtke1, Jennifer Y Zhang2, Russell P Hall2

  • 1Departments of Neurology, Neurobiology and Anesthesiology, Duke University, Durham, North Carolina, USA.

The Journal of Investigative Dermatology
|August 15, 2014
PubMed

Insights

Transient Receptor Potential Vanilloid 4 (TRPV4) is downregulated in nonmelanoma skin cancers. This finding suggests TRPV4 may serve as a diagnostic marker and influence tumor growth.

Area of Science:

  • Oncology
  • Dermatology
  • Molecular Biology

Background:

  • The transient receptor potential vanilloid 4 (TRPV4) channel is implicated in various physiological processes.
  • TRPV4 functions as a UVB receptor in skin keratinocytes, regulating responses to UV overexposure.
  • Recent findings indicate TRPV4 downregulation in specific nonmelanoma skin cancers.

Purpose of the Study:

  • To contextualize the significance of TRPV4 downregulation in nonmelanoma skin cancers.
  • To explore the potential of TRPV4 as a dermatopathologic marker.
  • To investigate the impact of reduced TRPV4 expression on cancer biology, including tumor growth regulation.

Main Methods:

  • Commentary and analysis of existing research findings (Fusi et al., 2014).
  • Review of literature on TRPV4 function in skin and cancer.
  • Discussion of implications for dermatopathology and cancer progression.

Main Results:

  • TRPV4 expression is downregulated in several nonmelanoma skin cancers.
  • Downregulated TRPV4 may have a role in enhancing and regulating tumor growth.
  • TRPV4's function as a UVB receptor in keratinocytes is established.

Conclusions:

  • TRPV4 downregulation in nonmelanoma skin cancers warrants further investigation.
  • TRPV4 presents potential as a diagnostic marker in skin cancer.
  • The role of TRPV4 in cancer biology, particularly tumor growth, requires elucidation.

More Related Videos

A Simple and Inexpensive Method for Determining Cold Sensitivity and Adaptation in Mice08:35

A Simple and Inexpensive Method for Determining Cold Sensitivity and Adaptation in Mice

Published on: March 17, 2015

14.8K
Controllable Ion Channel Expression through Inducible Transient Transfection10:00

Controllable Ion Channel Expression through Inducible Transient Transfection

Published on: February 17, 2017

9.0K

Related Concept Videos

Thermosensation01:43

Thermosensation

Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
29.7K
Receptor Downregulation in MVBs01:15

Receptor Downregulation in MVBs

Multivesicular bodies (MVBs) are mature endosomes that sort ubiquitinated proteins and then fuse with lysosomes to degrade the sorted proteins. Epidermal growth factor (EGF) and its receptor (EGFR) form a complex that can be internalized through endocytosis, sorted into an MVB, and later degraded.
The EGFR can initiate signaling pathways that  lead to cell proliferation, migration, and differentiation. Overexpression of EGFR  stimulates cells to proliferate. Excessive  EGFR...
2.0K
Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
4.6K
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...
7.1K
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...
64.5K
GPCR Desensitization01:12

GPCR Desensitization

G protein-coupled receptor (GPCR) signaling plays a crucial role in cell functioning. GPCR desensitization is an equally essential process. It allows cells to respond to changing environments and regain sensitivity to new stimuli while preventing unnecessary stimulation when no longer needed. Prolonged exposure to stimuli leads to GPCR desensitization. It involves blocking the receptors from binding and activating additional G proteins. This inhibits activation of downstream effectors, thereby...
6.1K