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Potential new target for treating malignant pleural mesothelioma

is a rare asbestos-associated malignancy with limited therapeutic options. Despite advances in the treatment, the median survival remains 12 months from the time of diagnosis. Increased understanding of the molecular basis for the diverse signaling pathways involved in cancer progression should promote the discovery of novel biomarkers for early diagnosis and potentially lead to more effective therapeutic tools for the disease.

In the September issue of the ’s journal, the (JTO), researchers conclude that Ephrin (EPH) B2 seems to play an important role in and tumors.

Using expression arrays, researchers from the New York University Langone Medical Center looked at EPHB2 in 34 tumors , and found it significantly elevated in tumor tissue compared with matched normal peritoneum. They found EPHB2 overexpressed in all cell lines, but not in benign mesothelial cells. EPHB2 is also significantly elevated in tumor tissue compared with matched normal peritoneum.

Researchers believe, “targeting EPHB2 might provide a novel therapy to improve the prognosis in people suffering from malignant pleural mesothelioma. Further investigation in vitro using specific inhibitors of EPHB2 is required to determine the importance of EPHB2 and its interactions with other members of the receptor kinases and their ligands to prove its role as a marker of progression or worse prognosis for malignant pleural mesothelioma.


Overexpression of EPH Receptor B2 in Malignant Mesothelioma Correlates with Oncogenic BehaviorGoparaju, Chandra PhD; Donington, Jessica S. MD; Hsu, Tsungda PhD; Harrington, Ryan BS; Hirsch, Nathalie BS; Pass, Harvey I. MD, Journal of Thoracic Oncology, doi: 10.1097/JTO.0b013e31829ceb6a

International Association for the Study of Lung Cancer