PMID- 18219580 OWN - NLM STAT- MEDLINE DCOM- 20090209 LR - 20131121 IS - 1573-6822 (Electronic) IS - 0742-2091 (Linking) VI - 24 IP - 6 DP - 2008 Dec TI - Echinoderm regenerative response as a sensitive ecotoxicological test for the exposure to endocrine disrupters: effects of p,p'DDE and CPA on crinoid arm regeneration. PG - 573-86 LID - 10.1007/s10565-008-9057-y [doi] AB - Echinoderms are valuable test species in marine ecotoxicology and offer a wide range of biological processes appropriate for this approach. Regenerating echinoderms can be regarded as amenable experimental models for testing the effects of exposure to contaminants, particularly endocrine disrupter compounds (EDCs). As regeneration is a typical developmental process, physiologically regulated by humoral mechanisms, it is highly susceptible to the action of pseudo-hormonal contaminants which appear to be obvious candidates for exerting deleterious actions. In our laboratory experiments, selected EDCs suspected for their antiandrogenic action (p,p'-DDE and cyproterone acetate) were tested at low concentrations on regenerating specimens of the crinoid Antedon mediterranea. An integrated approach which combines exposure experiments and different morphological analyses was employed; the obtained results suggest an overall pattern of plausible endocrine disruption in the exposed samples, showing that processes such as regenerative growth, histogenesis, and differentiation are affected by the exposure to the selected compounds. These results confirm that (1) regenerative phenomena of echinoderms can be considered valuable alternative models to assess the effects of exposure to exogenous substances such as EDCs, and (2) these compounds significantly interfere with fundamental processes of developmental physiology (proliferation, differentiation, etc...) plausibly via endocrine alterations. In terms of future prospects, taking into account the increasing need to propose animal models different from vertebrates, echinoderms represent a group on which ecotoxicological studies should be encouraged and specifically addressed. FAU - Sugni, Michela AU - Sugni M AD - Dipartimento di Biologia, Universita degli Studi di Milano, Milan, Italy. michela.sugni@unimi.it FAU - Manno, Valentina AU - Manno V FAU - Barbaglio, Alice AU - Barbaglio A FAU - Mozzi, Daniela AU - Mozzi D FAU - Bonasoro, Francesco AU - Bonasoro F FAU - Tremolada, Paolo AU - Tremolada P FAU - Candia Carnevali, M Daniela AU - Candia Carnevali MD LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080125 PL - Switzerland TA - Cell Biol Toxicol JT - Cell biology and toxicology JID - 8506639 RN - 0 (Endocrine Disruptors) RN - 4KM2BN5JHF (Cyproterone Acetate) RN - V14159DF29 (Dichlorodiphenyldichloroethane) SB - IM MH - Animals MH - Cell Proliferation/drug effects MH - Cyproterone Acetate/*toxicity MH - Dichlorodiphenyldichloroethane/*toxicity MH - Echinodermata/cytology/*drug effects/physiology MH - Endocrine Disruptors/*toxicity MH - Environmental Exposure MH - Extremities/*physiology MH - Regeneration/*drug effects MH - *Toxicity Tests EDAT- 2008/01/26 09:00 MHDA- 2009/02/10 09:00 CRDT- 2008/01/26 09:00 PHST- 2007/10/29 00:00 [received] PHST- 2008/01/03 00:00 [accepted] PHST- 2008/01/26 09:00 [pubmed] PHST- 2009/02/10 09:00 [medline] PHST- 2008/01/26 09:00 [entrez] AID - 10.1007/s10565-008-9057-y [doi] PST - ppublish SO - Cell Biol Toxicol. 2008 Dec;24(6):573-86. doi: 10.1007/s10565-008-9057-y. Epub 2008 Jan 25.