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| Pasquet, Virginie; Morisset, Perrine; Ihammouine, Said; Chepied, Amandine; Aumailley, Lucie; Berard, Jean-baptiste; Serive, Benoit; Kaas, Raymond; Lanneluc, Isabelle; Thiery, Valerie; Lafferriere, Mathieu; Piot, Jean-marie; Patrice, Thierry; Cadoret, Jean-paul; Picot, Laurent. |
| Dunaliella tertiolecta (DT) was chemically investigated to isolate molecules inhibiting cancer cell proliferation and inducing apoptosis in vitro. The potency to inhibit cell growth was used for the bio-guided fractionation and isolation of active compounds using chromatographic techniques. The DT dichloromethane extract exhibited a strong anti-proliferative activity on MCF-7 and LNCaP cells, and was further fractionated and sub-fractionated by RP-HPLC. High resolution mass spectrometry and spectrophotometric analysis unequivocally identified violaxanthin as the most antiproliferative molecule present in DT DCM extract. Violaxanthin purified from DT induced MCF-7 dose- dependent growth inhibition in continuous and discontinuous treatments, at... |
| Tipo: Text |
Palavras-chave: Pigments; Microalgae; Dunaliella; Violaxanthin; Carotenoid; Cancer; Apoptosis. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00040/15142/12575.pdf |
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| Ben Henda, Yesmine; Laamari, Mariem; Lanneluc, Isabelle; Travers, Marie-agnes; Agogue, Helene; Arnaudin, Ingrid; Bridiau, Nicolas; Maugard, Thierry; Piot, Jean-marie; Sannier, Frederic; Bordenave-juchereau, Stephanie. |
| The effect of 11 marine-derived cryptides was investigated on proliferation, differentiation and maturation of human white pre-adipocytes (HWP). They were all formerly identified as potent Angiotensin-Converting-Enzyme inhibitors.Val-Trp (VW),Val-Tyr (VY), Lys-Tyr (KY), Lys-Trp (KW), Ile-Tyr (IY), Ala-Pro (AP),Val-Ile-Tyr (VIY), Leu-Lys-Pro (LKP), Gly-Pro-Leu (GPL), Ala-Lys-Lys (AKK) and Val-Ala-Pro (VAP) were previously found in fish products and coproducts as well as other marine resources like wakame. Treatment with AP, VAP and AKK greatly affected viability of HWP during the proliferation period while KW and VW treatment reduced the number of viable cells during the differentiation stage. A GPL and IY incubation during the differentiation stage allowed... |
| Tipo: Text |
Palavras-chave: Bioactive peptides; Obesity; Human white pre-adipocytes'; Proliferation; Differentiation; Adipocyte differentiation markers. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00269/38014/36308.pdf |
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| Juin, Camille; De Oliveira Junior, Raimundo Gonsalves; Fleury, Audrey; Oudinet, Chloe; Pytowski, Lior; Berard, Jean-baptiste; Nicolau, Elodie; Thiery, Valerie; Lanneluc, Isabelle; Beaugeard, Laureen; Prunier, Gregoire; Guedes Da Silva Almeida, Jackson Roberto; Picot, Laurent. |
| Zeaxanthin, an abundant carotenoid present in fruits, vegetables and algae was reported to exert antiproliferative activity and induce apoptosis in human uveal melanoma cells. It also inhibited uveal melanoma tumor growth and cell migration in nude mice xenograft models. Here we report that zeaxanthin purified from the rhodophyte Porphyridium purpureum (Bory) K.M.Drew & R.Ross, Porphyridiaceae, promotes apoptosis in the A2058 human melanoma cell line expressing the oncogenic BRAF V600E mutation. Zeaxanthin 40 μM (IC50) induced chromatin condensation, nuclear blebbing, hypodiploidy, accumulation of cells in sub-G1 phase, DNA internucleosomal fragmentation and activation of caspase-3. Western blot analysis revealed that zeaxanthin induced up-regulation... |
| Tipo: Text |
Palavras-chave: Cancer; Carotenoid; Melanoma; Microalgae; Phytoplankton; Zeaxanthin. |
| Ano: 2018 |
URL: http://archimer.ifremer.fr/doc/00444/55595/57227.pdf |
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