A critical evaluation of some of the recent so-called 'evidence' for the involvement of vertebrate-type sex steroids in the reproduction of mollusks.

Molecular and Cellular Endocrinology
István FodorZsolt Pirger

Abstract

Many studies on the control of reproduction in mollusks have focused on hormones (and proteins associated with the production and signaling of those hormones) which were originally discovered in humans, in the belief that if they are also present in mollusks, they must have the same role. However, although human sex steroids can be found in mollusks, they are so readily absorbed that their presence is not necessarily evidence of endogenous synthesis. A homolog of the vertebrate nuclear estrogen receptor has been found in mollusks, but it does not bind to estrogens or indeed to any steroid at all. Antibodies against human aromatase show positive immunostaining in mollusks, yet the aromatase gene has not been found in the genome of any invertebrates (let alone mollusks). This review will deal with these and other examples of contradictory evidence for a role of human hormones in invertebrate reproduction.

Citations

Jan 21, 2021·Biology·Ismael Jerez-Cepa, Ignacio Ruiz-Jarabo
Apr 15, 2021·Marine Environmental Research·Laura Emilia Fernández-GonzálezAngel P Diz
Jun 8, 2021·Frontiers in Molecular Neuroscience·Ellen A WoodAkos Vertes
Jun 29, 2021·Frontiers in Cell and Developmental Biology·Jan TaubenheimSebastian Fraune
Aug 8, 2021·Animals : an Open Access Journal From MDPI·Konrad WojnarowskiKarolina Dorobisz

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