New model for gastroenteropancreatic large-cell neuroendocrine carcinoma: establishment of two clinically relevant cell lines.
Recently, a novel WHO-classification has been introduced that divided gastroenteropancreatic neuroendocrine neoplasms (GEP-NEN) according to their proliferation index into G1- or G2-neuroendocrine tumors (NET) and poorly differentiated small-cell or large-cell G3-neuroendocrine carcinomas (NEC). Our...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2014-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC3925161?pdf=render |
| _version_ | 1818359337360293888 |
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| author | Andreas Krieg Sabrina Mersch Inga Boeck Levent Dizdar Eberhard Weihe Zena Hilal Markus Krausch Birte Möhlendick Stefan A Topp Roland P Piekorz Wolfgang Huckenbeck Nikolas H Stoecklein Martin Anlauf Wolfram T Knoefel |
| author_facet | Andreas Krieg Sabrina Mersch Inga Boeck Levent Dizdar Eberhard Weihe Zena Hilal Markus Krausch Birte Möhlendick Stefan A Topp Roland P Piekorz Wolfgang Huckenbeck Nikolas H Stoecklein Martin Anlauf Wolfram T Knoefel |
| author_sort | Andreas Krieg |
| collection | DOAJ |
| description | Recently, a novel WHO-classification has been introduced that divided gastroenteropancreatic neuroendocrine neoplasms (GEP-NEN) according to their proliferation index into G1- or G2-neuroendocrine tumors (NET) and poorly differentiated small-cell or large-cell G3-neuroendocrine carcinomas (NEC). Our knowledge on primary NECs of the GEP-system is limited due to the rarity of these tumors and chemotherapeutic concepts of highly aggressive NEC do not provide convincing results. The aim of this study was to establish a reliable cell line model for NEC that could be helpful in identifying novel druggable molecular targets. Cell lines were established from liver (NEC-DUE1) or lymph node metastases (NEC-DUE2) from large cell NECs of the gastroesophageal junction and the large intestine, respectively. Morphological characteristics and expression of neuroendocrine markers were extensively analyzed. Chromosomal aberrations were mapped by array comparative genomic hybridization and DNA profiling was analyzed by DNA fingerprinting. In vitro and in vivo tumorigenicity was evaluated and the sensitivity against chemotherapeutic agents assessed. Both cell lines exhibited typical morphological and molecular features of large cell NEC. In vitro and in vivo experiments demonstrated that both cell lines retained their malignant properties. Whereas NEC-DUE1 and -DUE2 were resistant to chemotherapeutic drugs such as cisplatin, etoposide and oxaliplatin, a high sensitivity to 5-fluorouracil was observed for the NEC-DUE1 cell line. Taken together, we established and characterized the first GEP large-cell NEC cell lines that might serve as a helpful tool not only to understand the biology of these tumors, but also to establish novel targeted therapies in a preclinical setup. |
| first_indexed | 2024-12-13T20:43:18Z |
| format | Article |
| id | doaj.art-28a25ce8d3f64cefab24b12191b8fb7e |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-13T20:43:18Z |
| publishDate | 2014-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-28a25ce8d3f64cefab24b12191b8fb7e2022-12-21T23:32:04ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0192e8871310.1371/journal.pone.0088713New model for gastroenteropancreatic large-cell neuroendocrine carcinoma: establishment of two clinically relevant cell lines.Andreas KriegSabrina MerschInga BoeckLevent DizdarEberhard WeiheZena HilalMarkus KrauschBirte MöhlendickStefan A ToppRoland P PiekorzWolfgang HuckenbeckNikolas H StoeckleinMartin AnlaufWolfram T KnoefelRecently, a novel WHO-classification has been introduced that divided gastroenteropancreatic neuroendocrine neoplasms (GEP-NEN) according to their proliferation index into G1- or G2-neuroendocrine tumors (NET) and poorly differentiated small-cell or large-cell G3-neuroendocrine carcinomas (NEC). Our knowledge on primary NECs of the GEP-system is limited due to the rarity of these tumors and chemotherapeutic concepts of highly aggressive NEC do not provide convincing results. The aim of this study was to establish a reliable cell line model for NEC that could be helpful in identifying novel druggable molecular targets. Cell lines were established from liver (NEC-DUE1) or lymph node metastases (NEC-DUE2) from large cell NECs of the gastroesophageal junction and the large intestine, respectively. Morphological characteristics and expression of neuroendocrine markers were extensively analyzed. Chromosomal aberrations were mapped by array comparative genomic hybridization and DNA profiling was analyzed by DNA fingerprinting. In vitro and in vivo tumorigenicity was evaluated and the sensitivity against chemotherapeutic agents assessed. Both cell lines exhibited typical morphological and molecular features of large cell NEC. In vitro and in vivo experiments demonstrated that both cell lines retained their malignant properties. Whereas NEC-DUE1 and -DUE2 were resistant to chemotherapeutic drugs such as cisplatin, etoposide and oxaliplatin, a high sensitivity to 5-fluorouracil was observed for the NEC-DUE1 cell line. Taken together, we established and characterized the first GEP large-cell NEC cell lines that might serve as a helpful tool not only to understand the biology of these tumors, but also to establish novel targeted therapies in a preclinical setup.http://europepmc.org/articles/PMC3925161?pdf=render |
| spellingShingle | Andreas Krieg Sabrina Mersch Inga Boeck Levent Dizdar Eberhard Weihe Zena Hilal Markus Krausch Birte Möhlendick Stefan A Topp Roland P Piekorz Wolfgang Huckenbeck Nikolas H Stoecklein Martin Anlauf Wolfram T Knoefel New model for gastroenteropancreatic large-cell neuroendocrine carcinoma: establishment of two clinically relevant cell lines. PLoS ONE |
| title | New model for gastroenteropancreatic large-cell neuroendocrine carcinoma: establishment of two clinically relevant cell lines. |
| title_full | New model for gastroenteropancreatic large-cell neuroendocrine carcinoma: establishment of two clinically relevant cell lines. |
| title_fullStr | New model for gastroenteropancreatic large-cell neuroendocrine carcinoma: establishment of two clinically relevant cell lines. |
| title_full_unstemmed | New model for gastroenteropancreatic large-cell neuroendocrine carcinoma: establishment of two clinically relevant cell lines. |
| title_short | New model for gastroenteropancreatic large-cell neuroendocrine carcinoma: establishment of two clinically relevant cell lines. |
| title_sort | new model for gastroenteropancreatic large cell neuroendocrine carcinoma establishment of two clinically relevant cell lines |
| url | http://europepmc.org/articles/PMC3925161?pdf=render |
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