edited by Natasha S. Barteneva, Cellular and Molecular Medicine Program, Boston Children's Hospital, Boston, MA, USA; Department of Pediatrics, Harvard Medical School, Boston, MA, USA, Ivan A. Vorobjev, Department of Cell Biology and Histology, M.V. Lomonosov Moscow State University, Moscow, Russia; A.N. Belozersky Institute of Physico-Chemical Biology, M.V. Lomonosov Moscow State University, Moscow State University, Moscow, Russia.