CXCL13 and infection: The cluster preferentially expressed other genes related to ECM generation: including Gpc6 (growth factor and ECM receptor), Dcn (ECM assembly), Mfap4 and Mfap5 (ECM proteins); as well as genes involved in defense against infection: Cxcl13 (anti-microbial, B-cell chemoattractant) and Adm (antimicrobial and fluid regulation).