 Through CXCL13 secretions B cells are able to locate the lymph node.Additionally, some recent studies have suggested that CXCL13, through CXCR5, is capable of recruiting hematopoietic precursor cells (CD3− CD4+) which would cause the development of lymph nodes and Peyer's Patches.Other studies highlight the role of CXCR5 in T cells, as they are unable to access B cell follicles without CXCR5 expression.