Species-specific maturation profiles of human, chimpanzee and bonobo neural cells

Elife. 2019 Feb 7;8:e37527. doi: 10.7554/eLife.37527.

Abstract

Comparative analyses of neuronal phenotypes in closely related species can shed light on neuronal changes occurring during evolution. The study of post-mortem brains of nonhuman primates (NHPs) has been limited and often does not recapitulate important species-specific developmental hallmarks. We utilize induced pluripotent stem cell (iPSC) technology to investigate the development of cortical pyramidal neurons following migration and maturation of cells grafted in the developing mouse cortex. Our results show differential migration patterns in human neural progenitor cells compared to those of chimpanzees and bonobos both in vitro and in vivo, suggesting heterochronic changes in human neurons. The strategy proposed here lays the groundwork for further comparative analyses between humans and NHPs and opens new avenues for understanding the differences in the neural underpinnings of cognition and neurological disease susceptibility between species.

Keywords: chimpanzee; developmental biology; evolution; human; neurodevelopment; neuronal function; neuroprogenitor migration; non human primate.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cell Differentiation
  • Cell Line
  • Cell Movement / genetics
  • Dendrites / metabolism
  • Gene Expression Regulation
  • Humans
  • Induced Pluripotent Stem Cells / cytology
  • Neural Stem Cells / cytology
  • Neural Stem Cells / metabolism
  • Neural Stem Cells / transplantation
  • Neurons / cytology*
  • Pan paniscus / physiology*
  • Pan troglodytes / physiology*
  • Species Specificity