PDPN and diffuse large B-cell lymphoma: The observed increase in podoplanin expression was also a characteristic feature of both DLBCL/ADSC and/DLBCL/ADSC/MDM 2D co-cultures, which is notable, given the reported enrichment of the DLBCL stromal-1 gene signature in podoplanin expressing cells, including lymph node FRC (56).