MMP23B and cancer: Recent studies showed that exosomal lncRNAs play an important role in signal exchange between tumor cells, the local microenvironment, or distal target organs.15 In the present study, analysis of a lncRNA lung cancer tissue microarrays revealed differences in exosomal lncRNA expression based on cancer status and identified lnc‐MMP2‐2 as exhibiting high degrees of differential expression during this process.