The search for the primary tumor in metastasized gastroenteropancreatic neuroendocrine neoplasm
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The search for the primary tumor in metastasized gastroenteropancreatic neuroendocrine neoplasm. / Kaemmerer, D; Posorski, N; von Eggeling, F; Ernst, G; Hörsch, D; Baum, R P; Prasad, V; Langer, R; Esposito, I; Klöppel, G; Sehner, S; Knösel, T; Hommann, M.
in: CLIN EXP METASTAS, Jahrgang 31, Nr. 7, 2014, S. 817-27.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - The search for the primary tumor in metastasized gastroenteropancreatic neuroendocrine neoplasm
AU - Kaemmerer, D
AU - Posorski, N
AU - von Eggeling, F
AU - Ernst, G
AU - Hörsch, D
AU - Baum, R P
AU - Prasad, V
AU - Langer, R
AU - Esposito, I
AU - Klöppel, G
AU - Sehner, S
AU - Knösel, T
AU - Hommann, M
PY - 2014
Y1 - 2014
N2 - Gastroenteropancreatic neuroendocrine tumors (NETs) often present as liver metastasis from a carcinoma of unknown primary. We recently showed that primary NETs from the pancreas, small intestine and stomach as well as their respective liver metastases differ from each other by the expression profile of the three genes CD302, PPWD1 and ABHB14B. The gene and protein expression of CD302, PPWD1, and ABHB14B was studied in abdominal NET metastases to identify the site of the respective primary tumors. Cryopreserved tissue from NET metastases collected in different institutions (group A: 29, group B: 50, group C: 132 specimens) were examined by comparative genomic hybridization (Agilent 105 K), gene expression analysis (Agilent 44 K) (groups A and B) and immunohistochemistry (group C). The data were blindly evaluated, i.e. without knowing the site of the primary. Gene expression analysis correctly revealed the primary in the ileum in 94 % of the cases of group A and in 58 % of group B. A pancreatic primary was predicted in 83 % (group A) and 20 % (group B), respectively. The combined sensitivity of group A and B was 75 % for ileal NETs and 38 % for pancreatic NETs. Immunohistochemical analysis of group C revealed an overall sensitivity of 80 %. Gene and protein expression analysis of CD302 and PPWD1 in NET metastases correctly identifies the primary in the pancreas or the ileum in 80 % of the cases, provided that the tissue is well preserved. Immunohistochemical profiling revealed CD302 as the best marker for ileal and PPWD1 for pancreatic detection.
AB - Gastroenteropancreatic neuroendocrine tumors (NETs) often present as liver metastasis from a carcinoma of unknown primary. We recently showed that primary NETs from the pancreas, small intestine and stomach as well as their respective liver metastases differ from each other by the expression profile of the three genes CD302, PPWD1 and ABHB14B. The gene and protein expression of CD302, PPWD1, and ABHB14B was studied in abdominal NET metastases to identify the site of the respective primary tumors. Cryopreserved tissue from NET metastases collected in different institutions (group A: 29, group B: 50, group C: 132 specimens) were examined by comparative genomic hybridization (Agilent 105 K), gene expression analysis (Agilent 44 K) (groups A and B) and immunohistochemistry (group C). The data were blindly evaluated, i.e. without knowing the site of the primary. Gene expression analysis correctly revealed the primary in the ileum in 94 % of the cases of group A and in 58 % of group B. A pancreatic primary was predicted in 83 % (group A) and 20 % (group B), respectively. The combined sensitivity of group A and B was 75 % for ileal NETs and 38 % for pancreatic NETs. Immunohistochemical analysis of group C revealed an overall sensitivity of 80 %. Gene and protein expression analysis of CD302 and PPWD1 in NET metastases correctly identifies the primary in the pancreas or the ileum in 80 % of the cases, provided that the tissue is well preserved. Immunohistochemical profiling revealed CD302 as the best marker for ileal and PPWD1 for pancreatic detection.
KW - Endocrine Glands
KW - Female
KW - Gene Expression Profiling
KW - Humans
KW - Male
KW - Neoplasm Metastasis
KW - Neoplasms
U2 - 10.1007/s10585-014-9672-3
DO - 10.1007/s10585-014-9672-3
M3 - SCORING: Journal article
C2 - 25098566
VL - 31
SP - 817
EP - 827
JO - CLIN EXP METASTAS
JF - CLIN EXP METASTAS
SN - 0262-0898
IS - 7
ER -