“P55 | ENDOTHELIAL THYMIDINE PHOSPHORYLASE DEFICIENCY TRIGGERS MORPHO-FUNCTIONAL DEGE-NERATION OF ENTERIC NEURONS AND REDUCES INTESTINAL STEM CELL PROLIFERATION: I. Neri1, E. Boschetti1, T. Saha2, S. Rommel2, S. Schulte2, M. Gries2, R. De Giorgio3, L. Manzoli1, S. Ratti1, K. Schäfer2 | 1Cellular Signalling Laboratory, Anatomy Center, Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy; 2Workgroup Enteric Nervous System (AGENS), Department of Informatics and Microsystems Technology, University of Applied, Sciences Kaiserslautern, Zweibrücken, Germany; 3Department of Translational Medicine, University of Ferrara, Ferrara, Italy” (2025) European Journal of Histochemistry, 69(s2). doi:10.4081/ejh.2025.4380.