The observation of distinct β‐actin mRNA movement in axons and dendrites reflects the differences in the cytoskeletal configuration,29 the variety of motor protein combinations,30 different trans‐acting factors31, 32, 33 such as adenomatous polyposis coli,34, 35 and the distribution of late endosomes and lysosomes that are reported to carry RNA granules.36, 37, 38. Here, IMMT is linked to polyposis.