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A Potential Antineoplastic Peptide of Human Prostate Cancer Cells Derived from the Lesser Spotted Dogfish (Scyliorhinus canicula L.)

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Sciences Department, Normandy University, University of Caen Normandy (UNICAEN), Sorbonne University, French National Museum of Natural History (MNHN), University of Antilles (UA), French National Centre for Scientific Research (CNRS), French National Institute for Sustainable Development (IRD), Biology of Aquatic Organisms and Ecosystems (BOREA) Research Unit, CS14032, 14032 CAEN, CEDEX 5, France
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Group CELLIS PHARMA, Parc Technopolitain Atalante Saint Malo, 35400 Saint Malo, France
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Authors to whom correspondence should be addressed.
Mar. Drugs 2019, 17(10), 585; https://doi.org/10.3390/md17100585
Received: 24 September 2019 / Revised: 14 October 2019 / Accepted: 14 October 2019 / Published: 16 October 2019
The purpose of the present paper is to investigate the mechanism of action of a pyroglutamate-modified peptide (pE-K092D) on in vitro growth inhibition of MDA-Pca-2b prostate cancer cells. This peptide was derived from a peptide previously isolated from the testis of the lesser spotted dogfish and identified as QLTPEALADEEEMNALAAR (K092D). The effect of the peptide on cell proliferation and cell death mechanisms was studied by flow cytometry. Cellular morphology and cytoskeleton integrity of peptide-treated cells were observed by immunofluorescence microscopy. Results showed the onset of peptide induced early cytoskeleton perturbation, inhibition of autophagy, inhibition of cell proliferation and, at the end, non-apoptotic cell death mechanisms (membrane destabilization and necrosis). All those mechanisms seem to contribute to MDA-Pca-2b growth inhibition by a main cytostatic fate. View Full-Text
Keywords: cancer; MDA-Pca-2b; antineoplastic; marine peptide; lesser spotted dogfish (Scyliorhinus canicula) cancer; MDA-Pca-2b; antineoplastic; marine peptide; lesser spotted dogfish (Scyliorhinus canicula)
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MDPI and ACS Style

Bosseboeuf, A.; Baron, A.; Duval, E.; Gautier, A.; Sourdaine, P.; Auvray, P. A Potential Antineoplastic Peptide of Human Prostate Cancer Cells Derived from the Lesser Spotted Dogfish (Scyliorhinus canicula L.). Mar. Drugs 2019, 17, 585.

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