ATF4 Selectively Regulates Heat Nociception and Contributes to Kinesin-mediated TRPM3 Trafficking
Overview
Authors
Affiliations
Effective treatments for patients suffering from heat hypersensitivity are lacking, mostly due to our limited understanding of the pathogenic mechanisms underlying this disorder. In the nervous system, activating transcription factor 4 (ATF4) is involved in the regulation of synaptic plasticity and memory formation. Here, we show that ATF4 plays an important role in heat nociception. Indeed, loss of ATF4 in mouse dorsal root ganglion (DRG) neurons selectively impairs heat sensitivity. Mechanistically, we show that ATF4 interacts with transient receptor potential cation channel subfamily M member-3 (TRPM3) and mediates the membrane trafficking of TRPM3 in DRG neurons in response to heat. Loss of ATF4 also significantly decreases the current and KIF17-mediated trafficking of TRPM3, suggesting that the KIF17/ATF4/TRPM3 complex is required for the neuronal response to heat stimuli. Our findings unveil the non-transcriptional role of ATF4 in the response to heat stimuli in DRG neurons.
Navigating the Controversies: Role of TRPM Channels in Pain States.
Gandini M, Zamponi G Int J Mol Sci. 2024; 25(19).
PMID: 39408620 PMC: 11476983. DOI: 10.3390/ijms251910284.
The odyssey of the TR(i)P journey to the cellular membrane.
Rivera B, Orellana-Serradell O, Servili E, Santos R, Brauchi S, Cerda O Front Cell Dev Biol. 2024; 12:1414935.
PMID: 39108834 PMC: 11300232. DOI: 10.3389/fcell.2024.1414935.
Endophilin A2 controls touch and mechanical allodynia via kinesin-mediated Piezo2 trafficking.
Xie M, Lai R, Xiao Y, Zhang X, Cao X, Tian X Mil Med Res. 2024; 11(1):17.
PMID: 38475827 PMC: 10929226. DOI: 10.1186/s40779-024-00520-z.
Kalra G, Lenz D, Abdul-Aziz D, Hanna C, Basu M, Herb B Cell Rep. 2023; 42(11):113421.
PMID: 37952154 PMC: 11007545. DOI: 10.1016/j.celrep.2023.113421.
Zhu Y, Luan C, Gong L, Gu Y, Wang X, Sun H iScience. 2023; 26(8):107264.
PMID: 37502257 PMC: 10368823. DOI: 10.1016/j.isci.2023.107264.