CXCR5 and AIDS: It should be noted that at least aspects of these potential mechanisms involving CXCR5 and CXCL13 could be operating in some non-AIDS-related B cell lymphomas, as well, given the similarities noted above between the expression/function of these molecules in AIDS-NHL in the current study, and their previously reported expression/function in several types of non-AIDS-related B cell lymphoma [13–17, 35, 36].