Humoral immune responses of lung cancer patients against the Transmembrane Phosphatase with TEnsin homology (TPTE)

Lung Cancer : Journal of the International Association for the Study of Lung Cancer
Andreas KuemmelRoland Buhl

Abstract

The cancer/testis (C/T) antigen Transmembrane Phosphatase with TEnsin homology (TPTE) is aberrantly expressed in many tumors including lung cancer. In the present study, we analyzed TPTE-auto-antibodies in lung cancer patients. Using a crude-lysate ELISA, we analyzed a large cohort of 307 sera from lung cancer patients and 47 healthy donors for TPTE-specific autoantibodies. Sero-reactivity was correlated with clinical parameters and patients' survival. TPTE-specific antibodies were detected in 41 of 307 (13.4%) sera from lung cancer patients. Based on an optimal cut-off value calculated by ROC curve analysis sensitivity for diagnosing lung cancer was 52% and specificity was 72%. TPTE sero-positivity was not associated with tumor stage, tumor histology, gender or age. Multivariate analysis indicated that TPTE sero-positivity is associated with prolonged survival in patients with lung cancer, but established prognostic factors for survival prediction such as stage and histology remain indispensable. Autoantibodies against TPTE occur spontaneously in lung cancer patients. TPTE sero-reactivity has moderate sensitivity and specificity for diagnosing lung cancer and is a positive prognostic marker.

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Citations

May 26, 2016·Proceedings of the National Academy of Sciences of the United States of America·Dongil KeumByung-Chang Suh
Nov 7, 2017·International Journal of Cancer. Journal International Du Cancer·Jiabo DiXiangqian Su
Jul 19, 2018·Scientific Reports·Andreas KuemmelMarkus Radsak
Jun 28, 2019·Frontiers in Cellular and Infection Microbiology·Kumiko Nakada-TsukuiTomoyoshi Nozaki
Apr 13, 2021·Journal of Genetics and Genomics = Yi Chuan Xue Bao·Subhadip KunduAshok Sharma

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