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Establishment and Characterization of a Novel Cell Line Derived from a Small Cell Neuroendocrine Carcinoma of the Anal Canal.
Neuroendocrinology 2018
BACKGROUND: Gastroenteropancreatic neuroendocrine carcinomas (GEP-NECs) are biologically aggressive tumors, associated with a very poor survival. Due to their rarity, our knowledge on GEP-NEC biology is very limited. The aim of this study was to establish a GEP-NEC cell line model that might contribute to a better understanding of this rare malignant disease to further develop novel therapeutic approaches in preclinical studies.
METHODS: Small cell neuroendocrine cancer cell line NEC-DUE3 was derived from a lymph node metastasis of a neuroendocrine carcinoma (NEC) located at the anal canal. Morphological characteristics and the expression of neuroendocrine markers were comprehensively investigated. For genetic profiling, NEC-DUE3 cells were analyzed by DNA fingerprinting. Chromosomal aberrations were mapped by array comparative genomic hybridization. NEC-DUE3 cell tumorigenicity was evaluated in vivo and the sensitivity to chemotherapeutic agents was assessed in vitro.
RESULTS: NEC-DUE3 cells were characterized by the expression of molecular markers that are commonly observed in GEP-NECs, were sensitive to treatment with cisplatin, and able to form tumors in immunodeficient mice.
CONCLUSION: We established and characterized the first small cell GEP-NEC cell line that may serve as a valuable tool to create a better understanding of the biology of these rare tumors and to develop novel treatment strategies.
METHODS: Small cell neuroendocrine cancer cell line NEC-DUE3 was derived from a lymph node metastasis of a neuroendocrine carcinoma (NEC) located at the anal canal. Morphological characteristics and the expression of neuroendocrine markers were comprehensively investigated. For genetic profiling, NEC-DUE3 cells were analyzed by DNA fingerprinting. Chromosomal aberrations were mapped by array comparative genomic hybridization. NEC-DUE3 cell tumorigenicity was evaluated in vivo and the sensitivity to chemotherapeutic agents was assessed in vitro.
RESULTS: NEC-DUE3 cells were characterized by the expression of molecular markers that are commonly observed in GEP-NECs, were sensitive to treatment with cisplatin, and able to form tumors in immunodeficient mice.
CONCLUSION: We established and characterized the first small cell GEP-NEC cell line that may serve as a valuable tool to create a better understanding of the biology of these rare tumors and to develop novel treatment strategies.
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