Target genes of oncogene signalling in lung cancer

肺癌中癌基因信号传导的靶基因

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作者：Hauser,Stephanie,Bickel,Laura,Weinspach,Dirk,Gerg,Michael,Schäfer,Michael K,Pfeifer,Marco,Hazin,John,Schelter,Florian,Weidle,Ulrich H,Ramser,Juliane,Volkmann,Juliane,Meindl,Alfons,Schmitt,Manfred,Schrötzlmair,Florian,Altevogt,Peter,Krüger,Achim,Heinzerling,Lucie,Hartmann,Anke,Hund,Martina,Schuler,Gerold,Hartlapp,J H,Drings,P,Günther,I,Hartlapp,J H,Weißbach,L,Hendrickx,Ph,Weiss,J,Poliwoda,H,Garbrecht,M,Busch,S,Langenbuch,T,Ziemer,G,Winkelmann,M,Schneider,W,Pfitzer,P,Sasse,W,Holzgreve,A,Bünte,H,Sasse,W,Holzareve,A,Irschs,J,Bünte,H,Bauer,G,Bleifuss,J,Bremer,K,Breit,A,Ries,G,Holtkamp,W,Osterloh,B,Rauschecker,H,Nagel,G A,Rauschecker,H,Csterloh a.G.,B,Sauer,R,Schauer,A,Scheurlen a.G.,H,Hartlapp,J H,Wolter,H,Musch,E,Illiger,H J,Hartlapp,J H,Illiger,H J,Wolter,H,Freund,M,Barthels,M,Poliwoda,H,Holtkamp,W,Wuttke,W,Nagel,G A,Pflüger,K H,Merkel,M,Schmidt,L,Jungclas,H,Havemann,K,Book,K,Freund,M,Poliwoda,H,Weiß,J,Pilaski,J,Holtappels,K,Andersen,G,Schubert,J,Bogun,A,Göbel,U,Kim,D -J,Unger,C,Nagel,G A,Neumüller,W,Eibl,H,Kirchner,H H,Schmoll,H -J,Poliwoda,H,Schmoll,H -J,Knoblauch,Th,Unger,C,Eibl,H,von Heyden,H -W,Nagel,G A,Weiß,J,Kock,B,Waegner,W,Schindler,E,Schmoll,H J,Brüllke,N,Hossfeld,D K,Koll,R,Müllerleile,U,Borghardi,E J,Döll,St,Fock,R,Plener,U,Scherdin,G,Garbrecht,M,Müllerleile,U,Hossfeld,D K,Weiß,J,Sievert,T,Schmoll,H J,Waegner,W,Winn,R,Grosse-Wilde,H,Bepler,G,Jaques,G,Neumann,K,Gropp,C,Havemann,K,Wander,HE,Meyer,D,Schuff-Werner,P,Nagel,GA,Öhl,S,Seegenschmiedt,M H,Gallmeier,W M,Paleske,A v,Garbrecht,M,Hossfeld,D K,Holtkamp,W,Nagel,G A,Wander,H -E,Hartlapp,J H,Weißbach,L,Boedefeld,E A,Bremer,A,Bauer,G,Kulzer,R,Schoppe,W D,Porschen,R,Planker,M,Wirzt,F,Schütter,F W,Gruenagel,H,Miller,A,Freund,M,Link,H,Diedrich,H,Poliwoda,H,Ries,G,Hagenmüller,F,Lehr,L,Kneschaurek,P,Exeriede,G,Freund,M,Birk,G,Delorme,S,Poliwoda,H,Paleske,A v,Otto,U,Garbrecht,M,Hossfeld,D K,Lindner,H,Kneschaurek,P,Braun,J,Walter,T A,Rieck,J,Schlag,P M,Zornig,C,Hossfeld,D K,Wimmel,A,Schilli,M,Kaiser,U,Havemann,K,Branscheid,D,Schuermann,M,Schuermann,M,Jäger,R,Behn,M,Risse-Hackl,G,Havemann,K
期刊：PLoS One影响因子：2.600
时间：1995起止号：1995 Jan;121(Suppl 1):A69
doi：10.1371/journal.pone.0018989

Abstract

Tumour-specific splicing is known to contribute to cancer progression. In the case of the L1 cell adhesion molecule (L1CAM), which is expressed in many human tumours and often linked to bad prognosis, alternative splicing results in a full-length form (FL-L1CAM) and a splice variant lacking exons 2 and 27 (SV-L1CAM). It has not been elucidated so far whether SV-L1CAM, classically considered as tumour-associated, or whether FL-L1CAM is the metastasis-promoting isoform. Here, we show that both variants were expressed in human ovarian carcinoma and that exposure of tumour cells to pro-metastatic factors led to an exclusive increase of FL-L1CAM expression. Selective overexpression of one isoform in different tumour cells revealed that only FL-L1CAM promoted experimental lung and/or liver metastasis in mice. In addition, metastasis formation upon up-regulation of FL-L1CAM correlated with increased invasive potential and elevated Matrix metalloproteinase (MMP)-2 and -9 expression and activity in vitro as well as enhanced gelatinolytic activity in vivo. In conclusion, we identified FL-L1CAM as the metastasis-promoting isoform, thereby exemplifying that high expression of a so-called tumour-associated variant, here SV-L1CAM, is not per se equivalent to a decisive role of this isoform in tumour progression.

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