Cross-beta nanostructures based on dinaphthylalanine Gd-conjugates loaded with doxorubicin(340 views visite) Diaferia C, Gianolio E, Sibillano T, Mercurio FA, Leone M, Giannini C, Balasco N, Vitagliano L, Morelli G, Accardo A
Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II", Via Mezzocannone 16, 80134, Naples, Italy., Department of Molecular Biotechnologies and Health Science, University of Turin, Via Nizza 52, 10125, Turin, Italy., Institute of Crystallography (IC), CNR, Via Amendola 122, 70126, Bari, Italy., Institute of Biostructure and Bioimaging (IBB), CNR, via Mezzocannone 16, 80134, Naples, Italy., Department of Pharmacy, Research Centre on Bioactive Peptides (CIRPeB), University of Naples "Federico II", Via Mezzocannone 16, 80134, Naples, Italy. antonella.accardo@unina.it.,
Department of Molecular Biotechnologies and Health Science, University of Turin, Via Nizza 52, 10125, Turin, Italy.
Institute of Crystallography (IC), CNR, Via Amendola 122, 70126, Bari, Italy.
Institute of Biostructure and Bioimaging (IBB), CNR, via Mezzocannone 16, 80134, Naples, Italy.
References Riferimenti: Not available. Non disponibili.
Cross-beta nanostructures based on dinaphthylalanine Gd-conjugates loaded with doxorubicin
Very recently we proposed novel di- and tetra-phenylalanine peptides derivatized with gadolinium complexes as potentials supramolecular diagnostic agents for applications in MRI (Magnetic Resonance Imaging). It was observed that in very short FF dipeptide building blocks, the propensity to aggregate decreases significantly after modification with bulky moiety such as Gd-complexes, thus limiting their potential as CAs. We hypothesized that the replacement of the Phe side chain with more extended aromatic groups could improve the self-assembling. Here we describe the synthesis, structural and relaxometric behavior of a novel water soluble self-assembled peptide CA based on 2-naphthylalanine (2Nal). The peptide conjugate Gd-DOTA-L(6)-(2Nal)(2) is able to self-assemble in long fibrillary nanostructures in water solution (up to 1.0 mg/mL). CD and FTIR spectroscopies indicate a β sheet secondary structure with an antiparallel orientation of single strands. All data are in good agreement with WAXS and SAXS characterizations that show the typical "cross-β pattern" for fibrils at the solid state. Molecular modeling indicates the three-dimensional structure of the peptide spine of aggregates is essentially constituted by extended β-sheet motifs stabilized by hydrogen bonds and hydrophobic interactions. The high relaxivity of nanoaggregates (12.3 mM(-1) s(-1) at 20 MHz) and their capability to encapsulate doxorubicin suggest their potential application as supramolecular theranostic agents.
Cross-beta nanostructures based on dinaphthylalanine Gd-conjugates loaded with doxorubicin
Grünewald TG, Alonso M, Avnet S, Banito A, Burdach S, Cidre-aranaz F, Di Pompo G, Distel M, Dorado-garcia H, Garcia-castro J, González-gonzález L, Grigoriadis AE, Kasan M, Koelsche C, Krumbholz M, Lecanda F, Lemma S, Longo DL, Madrigal-esquivel C, Morales-molina Á, Musa J, Ohmura S, Ory B, Pereira-silva M, Perut F, Rodriguez R, Seeling C, Al Shaaili N, Shaabani S, Shiavone K, Sinha S, Tomazou EM, Trautmann M, Vela M, Versleijen-jonkers YM, Visgauss J, Zalacain M, Schober SJ, Lissat A, English WR, Baldini N, Heymann D * Sarcoma treatment in the era of molecular medicine(20 visite) Embo Mol Med (ISSN: 1757-4676linking), 2020 Oct 13; 12(11): e11131-N/D. Impact Factor:10.293 DettagliEsporta in BibTeXEsporta in EndNote
Kim YH, Shin SW, Pellicano R, Fagoonee S, Choi IJ, Kim YI, Park B, Choi JM, Kim SG, Choi J, Park JY, Oh S, Yang HJ, Lim JH, Im JP, Kim JS, Jung HC, Ponzetto A, Figura N, Malfertheiner P, Choi IJ, Kook MC, Kim YI, Cho SJ, Lee JY, Kim CG, Park B, Nam BH, Bae SE, Choi KD, Choe J, Kim SO, Na HK, Choi JY, Ahn JY, Jung KW, Lee J, Kim DH, Chang HS, Song HJ, Lee GH, Jung HY, Seta T, Takahashi Y, Noguchi Y, Shikata S, Sakai T, Sakai K, Yamashita Y, Nakayama T, Leja M, Park JY, Murillo R, Liepniece-karele I, Isajevs S, Kikuste I, Rudzite D, Krike P, Parshutin S, Polaka I, Kirsners A, Santare D, Folkmanis V, Daugule I, Plummer M, Herrero R, Tsukamoto T, Nakagawa M, Kiriyama Y, Toyoda T, Cao X, Corral JE, Mera R, Dye CW, Morgan DR, Lee YC, Lin JT, Garcia Martin R, Matia Cubillo A, Lee SH, Park JM, Han YM, Ko WJ, Hahm KB, Leontiadis GI, Ford AC, Ichinose M, Sugano K, Jeong M, Park JM, Han YM, Park KY, Lee DH, Yoo JH, Cho JY, Hahm KB, Bang CS, Baik GH, Shin IS, Kim JB, Suk KT, Yoon JH, Kim YS, Kim DJ * Helicobacter pylori Eradication for Prevention of Metachronous Recurrence after Endoscopic Resection of Early Gastric Cancer(211 visite) N Engl J Med (ISSN: 0028-4793, 0028-4793linking, 1533-4406electronic), 2015 Jun; 30642104201566393291: 749-756. Impact Factor:59.558 DettagliEsporta in BibTeXEsporta in EndNote
Cusanno F, Cisbani E, Colilli S, Fratoni R, Garibaldi F, Giuliani F, Gricia M, Lucentini M, Magliozzi ML, Santarivenere F, Torrioli S, Cinti MN, Pani R, Pellegrini R, Simonetti G, Schillaci O, Del Vecchio S, Salvatore M, Majewski S, De Vincentis G, Scopinaro F * Results of clinical trials with SPEM(230 visite) Nucl Instrum Methods Phys Res Sect A, 2007 Feb 1; 497(1): 46-50. Impact Factor:3.221 DettagliEsporta in BibTeXEsporta in EndNote