CXCL13 and diffuse large B-cell lymphoma: Combined with the expression of CXCL13 (B-lymphocyte chemoattractant, BLC) in ~ 50% of BLS-type DLBCL cases, as shown in our previous study11, the cause of this preferential homing to the bone marrow, liver and spleen depends likely on the expression of adhesion molecules that preferentially bind to resident bone marrow mesenchymal stromal cells.