Acknowledgement
This work was supported by KARL STORZ SE & Co. KG, Tuttlingen, Germany,
which provided us laparoscopic equipment and technical assistance. We
wish to thank Dr. Katrin Roth (Core Facility for Microscopy, Institute
of Molecular Biology and Tumor Research / Center for Tumor and
Immunobiology, Marburg University Medical Center) for support in wide
field microscopy. We thank Dörthe Sönnecken (Department of Pediatric
Surgery, University Hospital Marburg), Viktoria Wischmann and Mareike
Maier (Department of Pathology, Marburg University Medical Center) for
technical assistance in the
experiments.