Open Access

The association between the expression of PAR2 and TMEM16A and neuropathic pain

  • Authors:
    • Meng Zhang
    • Cun‑Xiang Gao
    • Yan‑Ping Wang
    • Ke‑Tao Ma
    • Li Li
    • Jiang‑Wen Yin
    • Zhi‑Gang Dai
    • Sheng Wang
    • Jun‑Qiang Si
  • View Affiliations

  • Published online on: December 18, 2017     https://doi.org/10.3892/mmr.2017.8295
  • Pages: 3744-3750
  • Copyright: © Zhang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Chronic constriction injury (CCI) of the sciatic nerve may induce dorsal root ganglion (DRG) neuronal hyperexcitability and behaviorally expressed hyperalgesia. CCI is a model of neuropathic pain. To investigate the association between the expression of protease activated receptor 2 (PAR2), TMEM16A and neuropathic pain, the expression of PAR2 and TMEM16A proteins in the DRG neurons of rats following CCI of the sciatic nerve was investigated. Following the creation of the CCI model, the thermal withdrawal latency (TWL) was examined by a hot plate test. An immunofluorescence assay and western blot assay were performed to determine the expression of PAR2 and TMEM16A proteins in the ipsilateral L4‑6 DRG neurons. The concentration of inositol 1,4,5‑triphosphate (IP3) in the L4‑6 DRG was determined by ELISA. In the CCI‑D7 (7 days after CCI) and CCI‑D14 (14 days after CCI) treatment groups, the TWL of rats was significantly shorter than that in the sham operated group (P<0.01; n=12). The expression of PAR2 and TMEM16A proteins in the CCI‑D7 and CCI‑D14 groups were significantly upregulated compared with the sham operated group (P<0.05; n=12). Additionally, it was revealed that PAR2 and TMEM16A were co‑expressed in DRG neurons. It was also observed that IP3 significantly increased in the CCI‑D7 and CCI‑D14 groups compared with the sham operation group (P<0.05; n=6) as PAR2 and TMEM16A also increased. These findings suggest that the upregulation of PAR2 and TMEM16A in DRG neurons, the co‑expression of the two proteins and increasing IP3 are critical to the development of neuropathic pain.
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March-2018
Volume 17 Issue 3

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Copy and paste a formatted citation
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Spandidos Publications style
Zhang M, Gao CX, Wang YP, Ma KT, Li L, Yin JW, Dai ZG, Wang S and Si JQ: The association between the expression of PAR2 and TMEM16A and neuropathic pain. Mol Med Rep 17: 3744-3750, 2018
APA
Zhang, M., Gao, C., Wang, Y., Ma, K., Li, L., Yin, J. ... Si, J. (2018). The association between the expression of PAR2 and TMEM16A and neuropathic pain. Molecular Medicine Reports, 17, 3744-3750. https://doi.org/10.3892/mmr.2017.8295
MLA
Zhang, M., Gao, C., Wang, Y., Ma, K., Li, L., Yin, J., Dai, Z., Wang, S., Si, J."The association between the expression of PAR2 and TMEM16A and neuropathic pain". Molecular Medicine Reports 17.3 (2018): 3744-3750.
Chicago
Zhang, M., Gao, C., Wang, Y., Ma, K., Li, L., Yin, J., Dai, Z., Wang, S., Si, J."The association between the expression of PAR2 and TMEM16A and neuropathic pain". Molecular Medicine Reports 17, no. 3 (2018): 3744-3750. https://doi.org/10.3892/mmr.2017.8295