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Application of Thermoresponsive PNIPAAM‑b‑PAMPTMA Diblock Copolymers in siRNA D...
Cardoso, Ana M.; Calejo, M. Teresa; Morais, Catarina M.; Cardoso, Ana L.; Cruz, Rita; Zhu, Kaizheng; de Lima, M. C. P.; Jurado, A. S.; Nyström, BoGene knockdown has emerged as an important tool for cancer gene therapy as well as for viral infections and dominantly inherited genetic disorders. The generation of suitable siRNA delivery systems poses some challenges, namely, to avoid nuclease degradation, to surpass the cytoplasmic membrane, and to release the nucleic acids into the cytosol. Aiming at evaluating the ability of thermoresponsive block copolym...
Sustained Release of Naltrexone from Poly(N-Isopropylacrylamide) Microgels
Kjoniksen, A.L.; Calejo, M.T.; Zhu, K.Z.; Cardoso, A.M.S.; de Lima, M.C.P.; Jurado, A.S.; Nystrom, B.; Sande, S.A.The release of the opioid antagonist naltrexone from neutral poly(N-isopropylacrylamide) (PNIPAAM)microgels and negatively charged PNIPAAM microgels containing acrylic acid groups (PNIPAAM-co-PAA) has been studied at various microgel and drug concentrations. The release curves were found to be well represented by the Weibull equation. The release rates were observed to be dependent on the microgel concentration...
Tumor-targeted Chlorotoxin-coupled Nanoparticles for Nucleic Acid Delivery to G...
Costa, Pedro M.; Cardoso, Ana L.; Mendonça, Liliana S.; Serani, Angelo; Custódia, Carlos; Conceição, Mariana; Simões, Sérgio; Moreira, João N.The present work aimed at the development and application of a lipid-based nanocarrier for targeted delivery of nucleic acids to glioblastoma (GBM). For this purpose, chlorotoxin (CTX), a peptide reported to bind selectively to glioma cells while showing no affinity for non-neoplastic cells, was covalently coupled to liposomes encapsulating antisense oligonucleotides (asOs) or small interfering RNAs (siRNAs). T...
Impact of anti-PLK1 siRNA-containing F3-targeted liposomes on the viability of ...
Gomes-da-Silva, Lígia C.; Ramalho, José S.; de Lima, M. C. P.; Simões, Sérgio; Moreira, João N.We have previously described the development of novel sterically stabilized F3-targeted pH-sensitive liposomes, which exhibited the ability to target both cancer and endothelial cells. Herein, the therapeutic potential of those liposomes was assessed upon encapsulation of a siRNA against a well-validated molecular target, PLK1. Treatment of prostate cancer (PC3) and angiogenic endothelial (HMEC-1) cells with F3...
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