Table 1.
Roles of chemokine receptors in biological functions involved in AD.
| Effects on | Receptor | Biological and molecular consequences | Refs |
|---|---|---|---|
| Aβ levels | CX3CR1 | Inhibition of microglial phagocytosis of Aβ peptides | [24], [25] |
| CXCR2 | Production of Aβ peptides | [30], [31] | |
| CXCR3 | Inhibition of microglial phagocytosis of Aβ peptides | [33] | |
| CCR2 | Clearance of Aβ peptides | [37], [40], [43], [44] | |
| CCR3 | Production of Aβ peptides | [47] | |
| Tau phosphorylation | CX3CR1 | Inhibition of hyperphosphorylation of Tau | [15], [22], [23], [26] |
| CCR3 | Hyperphosphorylation of Tau | [47] | |
| Synaptic function | CX3CR1 | Regulation of cognitive function, loss of neurons | [19], [20], [21], [27] |
| CXCR2 | Impairment of long-term potentiation | [29] | |
| CXCR3 | Impairment of long-term potentiation | [34] | |
| CCR3 | Loss of dendritic spines | [47] | |
| CCR5 | Impairment of memory and synaptic plasticity | [48], [52], [53] | |
| Neuroinflammatory | CX3CR1 | Control of microglial activation and IL-1β release | [22] |
| response | CCR3 | Microglial activation | [47] |
| Cellular chemotaxis | CXCR2 | Recruitment of T-lymphocytes in the brain | [32] |
| CCR2 | Recruitment of perivascular macrophages | [40] | |
| CCR5 | Recruitment of T-lymphocytes in the brain | [49], [50] |