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Physiology

Mice

2009

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Full-Text Articles in Life Sciences

Reactive Oxygen Species Mediate Tnfr1 Increase After Trpv1 Activation In Mouse Drg Neurons, Fei Ma, Liping Zhang, Karin N. Westlund Jun 2009

Reactive Oxygen Species Mediate Tnfr1 Increase After Trpv1 Activation In Mouse Drg Neurons, Fei Ma, Liping Zhang, Karin N. Westlund

Physiology Faculty Publications

Background: Transient receptor potential vanilloid subtype 1 (TRPV1) is activated by low pH/protons and is well known to be involved in hyperalgesia during inflammation. Tumor necrosis factor α (TNF-α), a proinflammatory cytokine, is involved in nociceptive responses causing hyperalgesia through TNF receptor type 1 (TNFR1) activation. Reactive oxygen species (ROS) production is also prominently increased in inflamed tissue. The present study investigated TNFR1 receptors in primary cultured mouse dorsal root ganglion (DRG) neurons after TRPV1 activation and the involvement of ROS. C57BL/6 mice, both TRPV1 knockout and wild type, were used for immunofluorescent and live cell imaging. The L4 and …