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Microglial pannexin-1 channel activation is a spinal determinant of joint pain

Mousseau M, Burma NE, Lee KY, Leduc-Pessah H, Kwok CHT, Reid AR, O’Brien M, Sagalajev B, Stratton JA, Patrick N, Stemkowski PL, Biernaskie J, Zamponi GW, Salo P, McDougall JJ, Prescott SA, Matyas JR, Trang T (2018) Microglial pannexin-1 channel activation is a spinal determinant of joint pain. Sci Adv 4:1-12. doi: 10.1126/sciadv.aas9846

Objective: To identify therapeutic targets for alleviating mechnical allodynia, a sign/symptom of arthritis.

Summary: The pannexin-1 (Panx1) channel is validated as a target; blockade of P2X7 receptors or ablation of spinal microglia prevented and reversed mechanical allodynia.

Usage: Mac-1-SAP and unconjugated Saporin (15 mg per intrathecal injection on days 0, 1, and 2). The specific depletion of spinal lumbar microglia attenuated the development of MIA-induced hypersensitivity indicating that spinal microglia causally contribute to the development of mechanical allodynia. By contrast, intrathecal injection of Control (unconjugated Saporin) did not alter the development of MIA-induced mechanical allodynia.

Related Products: Mac-1-SAP rat (Cat. #IT-33), Saporin (Cat. #PR-01)

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