دورية أكاديمية
The Time Course of MHC-I Expression in C57BL/6J and A/J Mice Correlates with the Degree of Retrograde Gliosis in the Spinal Cord following Sciatic Nerve Crush
| العنوان: | The Time Course of MHC-I Expression in C57BL/6J and A/J Mice Correlates with the Degree of Retrograde Gliosis in the Spinal Cord following Sciatic Nerve Crush |
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| المؤلفون: | Bruno Henrique de Melo Lima, André Luis Bombeiro, Luciana Politti Cartarozzi, Alexandre Leite Rodrigues de Oliveira |
| المصدر: | Cells, Vol 11, Iss 23, p 3710 (2022) |
| بيانات النشر: | MDPI AG, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Cytology |
| مصطلحات موضوعية: | axotomy, sciatic nerve, nerve regeneration, plasticity, Cytology, QH573-671 |
| الوصف: | The pleiotropic role of the major histocompatibility complex class I (MHC-I) reflects the close association between the nervous and immune systems. In turn, MHC-I upregulation postinjury is associated with a better regenerative outcome in isogenic mice following peripheral nerve damage. In the present work, we compared the time course of neuronal, glial, and sensorimotor recovery (1, 3, 5, 7, and 28 days after lesion—dal) following unilateral sciatic nerve crush in A/J and C57BL/6J mice. The A/J strain showed higher expression of MHC-I (7 dal, ** p < 0.01), Iba-1 (microglial reaction, 7 dal, *** p < 0.001), and GFAP (astrogliosis, 5 dal, * p < 0.05) than the C57BL/6J counterpart. Synaptic coverage (synaptophysin) was equivalent in both strains over time. In addition, mRNA expression of microdissected spinal motoneurons revealed an increase in cytoskeleton-associated molecules (cofilin, shp2, and crmp2, * p < 0.05), but not trkB, in C57BL/6J mice. Gait recovery, studied by the sciatic functional index, was faster in the A/J strain, despite the equivalent results of C57BL/6J at 28 days after injury. A similar recovery was also seen for the nociceptive threshold (von Frey test). Interestingly, when evaluating proprioceptive recovery, C57BL/6J animals showed an enlarged base of support, indicating abnormal ambulation postinjury. Overall, the present results reinforce the role of MHC-I expression in the plasticity of the nervous system following axotomy, which in turn correlates with the variable recovery capacity among strains of mice. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 11233710 2073-4409 |
| العلاقة: | https://www.mdpi.com/2073-4409/11/23/3710Test; https://doaj.org/toc/2073-4409Test |
| DOI: | 10.3390/cells11233710 |
| الوصول الحر: | https://doaj.org/article/3e531276c4044a93978661a20658d426Test |
| رقم الانضمام: | edsdoj.3e531276c4044a93978661a20658d426 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 11233710 20734409 |
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| DOI: | 10.3390/cells11233710 |