Tailored protein-conjugated DNA nanoplatform for synergistic cancer therapy

Autor: Dingkang Liu, Ye Chen, Qun Wang, Yue Ji, Lichen Bao, Wenbing Yao, Xiangdong Gao, Jun Yin
Rok vydání: 2022
Předmět:
Zdroj: Journal of Controlled Release. 346:250-259
ISSN: 0168-3659
DOI: 10.1016/j.jconrel.2022.04.022
Popis: Multidrug resistance (MDR) to chemotherapeutic drugs and targeted drug delivery are recurring issues in clinical cancer treatment. Here, a multifunctional fusion protein-DNA conjugate was designed as a co-delivery vehicle for anticancer peptides and chemotherapeutic drugs to combat both drug-resistant and drug-sensitive tumor cells. The fusion protein was constructed by fusing a PsTag polypeptide, a matrix metalloproteinase 2 (MMP2)-degradable domain, and the mitochondria-targeted pro-apoptotic peptide KLAKLAKKLAKLAK. Doxorubicin was efficiently loaded into the fusion protein pre-conjugated dendrimer-like DNA nanostructure. With the incorporation of enhanced stability, tumor targeting, and controlled-release elements, the tailored nanostructure can selectively enter tumor cells and synergistically exert antitumor activity with no significant adverse effects. Thus, these protein-conjugated DNA nanocarriers could be a potential co-delivery system for protein/peptide and chemotherapeutic drugs delivery in synergistic cancer therapy.
Databáze: OpenAIRE