Wednesday, July 31, 2013

Clinical implications of DLL4 expression in gastric cancer

??Clinical implications of DLL4 expression in gastric cancer

Delta-like ligand 4 (DLL4)-Notch signaling plays a key role in tumor neovascular development and angiogenesis during tumor growth. The clinical significance of DLL4 expression in gastric cancer has not been clarified.

Methods: Gastric cancer cell lines and 180 gastric cancer patients were enrolled.

DLL4 expression in gastric cancer cells and stroma was identified and evaluated immunohistochemically. The association between DLL4 and clinicopathological factors was also assessed.

Results: DLL4 expression was identified in the cellular membrane and cytoplasm of gastric cancer cells by immunoblotting and immunohistochemical staining.

DLL4 positivity in cancer cells and stroma was found in 88 (48%) and 41 (22%) of the 180 gastric cancer patients respectively. Both cancer and stromal DLL4 expression significantly correlated with more advanced tumor depth, nodal involvement, and lymphatic and venous invasion.

A strongly positive association between cancerous and stromal DLL4 expression was identified (p

Conclusions: Cancerous and stromal DLL4 expression was found in 48% and 22% in gastric cancer, and significantly affected postoperative clinical outcomes.

Cancerous and stromal DLL4 expression may be an effective target of anti-DLL4 treatment in gastric cancer.

Author: Sumiya IshigamiTakaaki ArigamiYoshikazu UenosonoHiroshi OkumuraHiroshi KuraharaYasuto UchikadoTetsuro SetoyamaYoshiaki KitaYuko KijimaYuka NishizonoAkihiro NakajoTetsuro OwakiShinichi UenoShoji Natsugoe
Credits/Source: Journal of Experimental &

Published on: 2013-07-30

Copyright by the authors listed above - made available via BioMedCentral (Open Access). Please make sure to read our disclaimer prior to contacting 7thSpace Interactive. To contact our editors, visit our online helpdesk. If you wish submit your own press release, click here.
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