The contribution of Prominin-1 (aka CD133) to male fertility has recently been (re)investigated, with contradictory results. Early findings, essential for deciphering its role, have unfortunately been neglected. Here, the authors present what is currently known about its expression in the male reproductive system of rodents and men so that its involvement in male fertility can be re-examined and discussed in the light of these elements.
Keywords: CD133; prominin‐1; reproductive system; sperm cell.
© 2023 The Authors. Reproductive Medicine and Biology published by John Wiley & Sons Australia, Ltd on behalf of Japan Society for Reproductive Medicine.