CXCR4 and HIV infectious disease: The chemokine coreceptors that are commonly utilized for HIV infection are C-C chemokine receptor type 5 (CCR5) and C-X-C chemokine receptor type 4 (CXCR4) [78,79,80], although CXCR6 has also been reported as a coreceptor for HIV infection [81,82].