Int. J. Dev. Biol. 58: 183 - 187 (2014)

https://doi.org/10.1387/ijdb.130337hl

Vol 58, Issue 2-3-4

Special Issue: Embryo Implantation

Evolving tales of autophagy in early reproductive events

Published: 10 July 2014

Hyunjung J. Lim*^,1 and Haengseok Song*^,2

¹Department of Biomedical Science and Technology, Institute of Biomedical Science and Technology, Konkuk University, Gwangjin-gu and ²Department of Biomedical Science, College of Life Science, CHA University, Seoul, Korea

Abstract

Cells learn to thrive under unfavorable conditions by various mechanisms, and autophagy, self-eating, is one such mechanism. Autophagy is always ongoing in cells at a basal level to turn over old proteins, provide building blocks for new proteins, and to dispose of unnecessary byproducts of metabolism, and normally it does not cause deleterious effects on other parts of basic cellular processes. Autophagy is often dubbed a “double-edged sword”, as it is a necessary process for many cells, but its exaggeration may lead to cell death. Evidence is accumulating that autophagy is crucially involved in specific aspects of reproduction. Several recent studies have illustrated how the uniqueness of self-eating is manifested in germ cells and embryos. In this review, we attempt to portray where this relatively young field of autophagy research is heading in the context of reproductive biology research.

Keywords

autophagy, oocyte, sperm, embryo