gms | German Medical Science

27. Deutscher Krebskongress

Deutsche Krebsgesellschaft e. V.

22. - 26.03.2006, Berlin

Experimental Models of monocytic infiltration into gliomas

Meeting Abstract

  • corresponding author presenting/speaker Herwig Strik - Dep. of Neurology, Göttingen, Deutschland
  • Petra Hülper - Dep. of Pediatrics 1, Göttingen
  • Bernhard Hemmerlein - Dep. of Pathology, Göttingen
  • Bernhard Erdlenbruch - Dep. of Pediatrics 1, Göttingen
  • Jessica Meier - Dep. of Neurology, Göttingen
  • Alexandra Kowalewski - Dep. of Neurology, Göttingen
  • Ralf Gold - Institute of MS Research, Göttingen
  • Mathias Bähr - Dep. of Neurology, Göttingen

27. Deutscher Krebskongress. Berlin, 22.-26.03.2006. Düsseldorf, Köln: German Medical Science; 2006. DocPO277

Die elektronische Version dieses Artikels ist vollständig und ist verfügbar unter: http://www.egms.de/de/meetings/dkk2006/06dkk387.shtml

Veröffentlicht: 20. März 2006

© 2006 Strik et al.
Dieser Artikel ist ein Open Access-Artikel und steht unter den Creative Commons Lizenzbedingungen (http://creativecommons.org/licenses/by-nc-nd/3.0/deed.de). Er darf vervielfältigt, verbreitet und öffentlich zugänglich gemacht werden, vorausgesetzt dass Autor und Quelle genannt werden.


Gliederung

Text

Objective: human malignant gliomas are extensively infiltrated by mononuclear cells. Cellular anti-tumour immune response, however, is not observed. To further investigate this phenomenon, we established models of monocytic invasion into glioma cell aggregates in vitro and in vivo.

In the in vitro model, peripheral blood monocytes infiltrate regularly into glioma cell spheroids, but also into SY5Y neuroblastoma cell spheroids. Coexpression of both MRP8 and MAC387 (MRP14) and expression of 25F9 but absence of 27E10 in the glioma cell spheroids point towards a chronic inflammatory phenotype of the infiltrating monocytes.

In vivo, labelled peritoneal macrophages infiltrate into the parenchyma of syngeneic cerebral rat gliomas both after intraarterial and intravenous injection.

The experimental models presented here allow to analyse interactions between monocytes and tumour cells both in vitro and in vivo and may help to understand mechanisms of monocytic inactivation by glioma cells. Moreover, the specific infiltration from the peripheral blood opens the possibility to use peripheral blood monocytes as vehicles to launch therapeutic agents specifically into cerebral gliomas.