Journal: Temperature: Multidisciplinary Biomedical Journal
Article Title: TRP channels: a missing bond in the entrainment mechanism of peripheral clocks throughout evolution
doi: 10.1080/23328940.2015.1115803
Figure Lengend Snippet: Hypothetical Model for the Co-Evolution of Entrainment Mechanisms. Invertebrates and non-mammalian vertebrates may be able to perceive light and/or temperature through opsins outside the classical photo- and thermo-receptors, integrate that information, and entrain the local clock in a single cell. For example, in Danio rerio embryonic cell line and Xenopus laevis melanophores, light increases Per expression and entrains the clock molecular machinery through a phosphoinositide cascade. In a speculative model, light and/or temperature opens TRPA1 channels after rhodopsin/melanopsin activation, probably through a phosphoinositide signaling as well, what could result in the reset of the molecular clock machinery. Solid black and red arrows=known steps of light and temperature signaling, respectively; dashed red arrows=temperature putative pathways of clock gene regulation.
Article Snippet: Hypothetical Signaling Pathway of the Thermo-Activation of Opsins.
Techniques: Expressing, Activation Assay