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Molecular strategies in the management of bronchopulmonary and thymic neuroendocrine neoplasms

	author = {Irvin M. Modlin and Mark Kidd and Pier-Luigi Filosso and Matteo Roffinella and Anna Lewczuk and Jaroslaw Cwikla and Lisa Bodei and Agnieska Kolasinska-Cwikla and Kyung-Min Chung and Margot E. Tesselaar and Ignat A. Drozdov},
	title = {Molecular strategies in the management of bronchopulmonary and thymic neuroendocrine neoplasms},
	journal = {Journal of Thoracic Disease},
	volume = {9},
	number = {15},
	year = {2017},
	keywords = {},
	abstract = {Thoracic NETs [bronchopulmonary NETs (BPNETs) and thymic NETs (TNET)] share a common anatomic primary location, likely a common cell of origin, the “Kulchitsky cell” and presumably, a common etiopathogenesis. Although they are similarly grouped into well-differentiated [typical carcinoids (TC) and atypical carcinoids (AC)] and poorly differentiated neoplasms and both express somatostatin receptors, they exhibit a wide variation in clinical behavior. TNETs are more aggressive, are frequently metastatic, and have a lower 5-year survival rate (~50% vs. ~80%) than BPNETs. They are typically symptomatic, most often secreting ACTH (40% of tumors) but both tumor groups share secretion of common biomarkers including chromogranin A and 5-HIAA. Consistently effective and accurate circulating biomarkers are, however, currently unavailable. Surgery is the primary therapeutic tool for both BPNET and TNETs but there remains little consensus about later interventions e.g., targeted therapy, or how these can be monitored. Genetic analyses have identified different topographies (e.g., significant alterations in chromatin and epigenetic remodeling in BPNETs versus frequent chromosomal abnormalities in TNETs) but there is an absence of clinically actionable mutations in both tumor groups. Liquid biopsies, tools that can measure neoplastic signatures in peripheral blood, can potentially be leveraged to detect disease early i.e., recurrence, predict tumors that may respond to specific therapies and serve as real-time monitors for treatment responses. Recent studies have identified that mRNA transcript analysis in blood effectively identifies both BPNET and TNETs. The clinical utility of this gene expression assay includes use as a diagnostic, confirmation of completeness of surgical resection and use as a molecular management tool to monitor efficacy of PRRT and other therapeutic strategies.},
	issn = {2077-6624},	url = {}