New and Updated Pathways. In version 72, topics with new or revised pathways include Autophagy ( Pexophagy ), Cell Cycle ( Nuclear Envelope Reassembly ), Developmental Biology ( EGR2- and SOX10-mediated initiation of Schwann cell myelination ), Disease ( Signaling by ERBB2 in Cancer , Signaling by ERBB2 ECD Mutants , Signaling by ERBB2 TMD/JMD Mutants , Signaling by PDGFR in disease , and Leishmania infection ), and Signal Transduction ( NGF-stimulated transcription and Drug-mediated inhibition of ERBB2 signaling ). New and Updated Illustrations.