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Papers of the Week

Papers: 18 Dec 2021 - 24 Dec 2021

Animal Studies, Pharmacology/Drug Development

2021 Dec 21

Cell Rep



Editor's Pick

Tmem160 contributes to the establishment of discrete nerve injury-induced pain behaviors in male mice.


Segelcke D, Fischer HK, Hütte M, Dennerlein S, Benseler F, Brose N, Pogatzki-Zahn EM, Schmidt M
Cell Rep. 2021 Dec 21; 37(12):110152.
PMID: 34936870.


Chronic pain is a prevalent medical problem, and its molecular basis remains poorly understood. Here, we demonstrate the significance of the transmembrane protein (Tmem) 160 for nerve injury-induced neuropathic pain. An extensive behavioral assessment suggests a pain modality- and entity-specific phenotype in male Tmem160 global knockout (KO) mice: delayed establishment of tactile hypersensitivity and alterations in self-grooming after nerve injury. In contrast, Tmem160 seems to be dispensable for other nerve injury-induced pain modalities, such as non-evoked and movement-evoked pain, and for other pain entities. Mechanistically, we show that global KO males exhibit dampened neuroimmune signaling and diminished TRPA1-mediated activity in cultured dorsal root ganglia. Neither these changes nor altered pain-related behaviors are observed in global KO female and male peripheral sensory neuron-specific KO mice. Our findings reveal Tmem160 as a sexually dimorphic factor contributing to the establishment, but not maintenance, of discrete nerve injury-induced pain behaviors in male mice.