| Title |
CCR5 Blockade Promotes M2 Macrophage Activation and Improves Locomotor Recovery After Spinal Cord Injury in Mice
|
|---|---|
| Published in |
Inflammation, September 2014
|
| DOI | 10.1007/s10753-014-0014-z |
| Pubmed ID | |
| Authors |
Fengtao Li, Bin Cheng, Jian Cheng, Dong Wang, Haopeng Li, Xijing He |
| Abstract |
Spinal cord injury (SCI) is considered to be primarily associated with loss of motor function and leads to activate diverse cellular mechanisms in the central nervous system to attempt to repair the damaged spinal cord tissue. Chemokine Receptor 5 (CCR5), a major co-receptor for macrophage-tropic human immunodeficiency viruses, is expressed on the surface of monocytes/macrophages, dendritic cells, activated T cells, and NK cells. Recent papers have indicated the important role of CCR5 in SCI, but the mechanism is still unknown. In our current study, CCR5 blockade displayed increased myelin sparring and enhanced SC repair process. The number of CD4(+) T cells, CD8(+) T cells, Ly6G(+) neutrophils and CD11b(+) macrophages were all significantly lower in the anti-CCR5 group than that in the control group after SCI. The IL-4 and IL-13 levels in anti-CCR5 group were markedly higher than that in control group after SCI. Correspondingly, the anti-CCR5-treated group showed increased numbers of Arg1- or CD206-expressing macrophages compared with the control IgG group. Furthermore, CCR5 blockade promoted PPARγ activation, and the increased numbers of M2 macrophages induced by CCR5 blockade were both reversed with additional PPARγ antagonist treatment. In conclusion, our present work provides evidence to support the concept that CCR5 blockade promotes M2 macrophage activation and improves locomotor recovery after SCI in mice. |
Mendeley readers
The data shown below were compiled from readership statistics for 36 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 3 | 8% |
| Germany | 1 | 3% |
| Unknown | 32 | 89% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 7 | 19% |
| Student > Bachelor | 5 | 14% |
| Student > Ph. D. Student | 5 | 14% |
| Student > Doctoral Student | 4 | 11% |
| Professor | 2 | 6% |
| Other | 5 | 14% |
| Unknown | 8 | 22% |
| Readers by discipline | Count | As % |
|---|---|---|
| Biochemistry, Genetics and Molecular Biology | 7 | 19% |
| Agricultural and Biological Sciences | 6 | 17% |
| Neuroscience | 6 | 17% |
| Medicine and Dentistry | 3 | 8% |
| Immunology and Microbiology | 1 | 3% |
| Other | 2 | 6% |
| Unknown | 11 | 31% |