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Aptamers as Delivery Agents of siRNA and Chimeric Formulations for the Treatment of Cancer

Instituto de Tecnologia em Imunobiológicos (Bio-Manguinhos), Fundação Oswaldo Cruz. Av. Brasil, 4365-Manguinhos, Rio de Janeiro/RJ CEP 21040-900, Brazil
Laboratório de Radiobiologia, Divisão de Física Médica, Instituto de Radioproteção e Dosimetria, Comissão Nacional de Energia Nuclear. Av. Salvador Allende S/N., Rio de Janeiro/RJ CEP 22783-127, Brazil
Author to whom correspondence should be addressed.
Pharmaceutics 2019, 11(12), 684;
Received: 30 September 2019 / Revised: 24 October 2019 / Accepted: 30 October 2019 / Published: 16 December 2019
(This article belongs to the Special Issue Drug Delivery of siRNA Therapeutics)
Both aptamers and siRNA technologies have now reached maturity, and both have been validated with a product in the market. However, although pegaptanib reached the market some time ago, there has been a slow process for new aptamers to follow. Today, some 40 aptamers are in the market, but many in combination with siRNAs, in the form of specific delivery agents. This combination offers the potential to explore the high affinity and specificity of aptamers, the silencing power of siRNA, and, at times, the cytotoxicity of chemotherapy molecules in powerful combinations that promise to delivery new and potent therapies. In this review, we report new developments in the field, following up from our previous work, more specifically on the use of aptamers as delivery agents of siRNA in nanoparticle formulations, alone or in combination with chemotherapy, for the treatment of cancer. View Full-Text
Keywords: siRNA; aptamers; cancer; nanoparticles siRNA; aptamers; cancer; nanoparticles
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MDPI and ACS Style

Dinis Ano Bom, A.P.; da Costa Neves, P.C.; Bonacossa de Almeida, C.E.; Silva, D.; Missailidis, S. Aptamers as Delivery Agents of siRNA and Chimeric Formulations for the Treatment of Cancer. Pharmaceutics 2019, 11, 684.

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