دورية أكاديمية
RgIA4 Prevention of Acute Oxaliplatin-Induced Cold Allodynia Requires α9-Containing Nicotinic Acetylcholine Receptors and CD3+ T-Cells
| العنوان: | RgIA4 Prevention of Acute Oxaliplatin-Induced Cold Allodynia Requires α9-Containing Nicotinic Acetylcholine Receptors and CD3+ T-Cells |
|---|---|
| المؤلفون: | Peter N. Huynh, Sean B. Christensen, J. Michael McIntosh |
| المصدر: | Cells, Vol 11, Iss 22, p 3561 (2022) |
| بيانات النشر: | MDPI AG, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Cytology |
| مصطلحات موضوعية: | α9-containing, nAChR, cold allodynia, T-cells, analgesia, non-opioid, Cytology, QH573-671 |
| الوصف: | Chemotherapy-induced neuropathic pain is a debilitating and dose-limiting side effect. Oxaliplatin is a third-generation platinum and antineoplastic compound that is commonly used to treat colorectal cancer and commonly yields neuropathic side effects. Available drugs such as duloxetine provide only modest benefits against oxaliplatin-induced neuropathy. A particularly disruptive symptom of oxaliplatin is painful cold sensitivity, known as cold allodynia. Previous studies of the Conus regius peptide, RgIA, and its analogs have demonstrated relief from oxaliplatin-induced cold allodynia, yielding improvement that persists even after treatment cessation. Moreover, underlying inflammatory and neuronal protection were shown at the cellular level in chronic constriction nerve injury models, consistent with disease-modifying effects. Despite these promising preclinical outcomes, the underlying molecular mechanism of action of RgIA4 remains an area of active investigation. This study aimed to determine the necessity of the α9 nAChR subunit and potential T-cell mechanisms in RgIA4 efficacy against acute oxaliplatin-induced cold allodynia. A single dose of oxaliplatin (10 mg/kg) was utilized followed by four daily doses of RgIA4. Subcutaneous administration of RgIA4 (40 µg/kg) prevented cold allodynia in wildtype mice but not in mice lacking the α9 nAChR-encoding gene, chrna9. RgIA4 also failed to reverse allodynia in mice depleted of CD3+ T-cells. In wildtype mice treated with oxaliplatin, quantitated circulating T-cells remained unaffected by RgIA4. Together, these results show that RgIA4 requires both chrna9 and CD3+ T-cells to exert its protective effects against acute cold-allodynia produced by oxaliplatin. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 11223561 2073-4409 |
| Relation: | https://www.mdpi.com/2073-4409/11/22/3561; https://doaj.org/toc/2073-4409 |
| DOI: | 10.3390/cells11223561 |
| URL الوصول: | https://doaj.org/article/165c463e528e41af82b78b74428a39c5 |
| رقم الأكسشن: | edsdoj.165c463e528e41af82b78b74428a39c5 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 11223561 20734409 |
|---|---|
| DOI: | 10.3390/cells11223561 |