PT - JOURNAL ARTICLE AU - KOJI NAKAYAMA AU - MASAHIRO SEIKE AU - RINTARO NORO AU - SUSUMU TAKEUCHI AU - KUNIKO MATSUDA AU - SHINOBU KUNUGI AU - KAORU KUBOTA AU - AKIHIKO GEMMA TI - Tenascin XB Is a Novel Diagnostic Marker for Malignant Mesothelioma AID - 10.21873/anticanres.13156 DP - 2019 Feb 01 TA - Anticancer Research PG - 627--633 VI - 39 IP - 2 4099 - http://ar.iiarjournals.org/content/39/2/627.short 4100 - http://ar.iiarjournals.org/content/39/2/627.full SO - Anticancer Res2019 Feb 01; 39 AB - Background/Aim: Malignant mesothelioma (MM) is an aggressive tumor with poor prognosis. The establishment of a new diagnostic and therapeutic approach for MM is expected. This study investigated the diagnostic significance of tenascin XB (TNXB) for MM. Materials and Methods: TNXB gene expression was found to be significantly higher in MM tumor tissues compared to paired normal tissues, as assessed by the Gene Expression Omnibus database. The inhibition of TNXB using small interfering RNAs suppressed the proliferation and colony formation of MM cells. Expression of TNXB and calretinin, a current diagnostic marker of MM, was evaluated by immunohistochemistry. Results: The sensitivity and specificity of TNXB for MM were 80.0% and 69.5%, respectively. When the detection of TNXB was combined with that of calretinin, 83.3% of MM cases were detected. Conclusion: These findings suggest that TNXB is a novel diagnostic biomarker for MM. A combination of detecting TNXB and calretinin may be useful for the differential diagnosis of MM from lung adenocarcinoma.