Investigation of Anticancer Therapy Using pH-Sensitive Carbon Dots-Functionalized Doxorubicin in Cubosomes

Cancer remains a highly lethal disease due to its elusive early detection, rapid spread, and significant side effects. Nanomedicine has emerged as a promising platform for drug delivery, diagnosis, and treatment monitoring. In particular, carbon dots (CDs), a type of fluorescent nanomaterial, offer excellent fluorescence properties and the ability to carry multiple drugs simultaneously through covalent bonding. In this work, CDs with carbonyl groups on the surface were prepared by aldol condensation and reacted with amine groups in the structure of doxorubicin (DOX) through Schiff base reaction to generate pH-responsive CDs-DOX. On the other hand, cubosomes with three-dimensional lattice structures formed by lipid bilayers have advantageous capabilities of encapsulating various hydrophilic, amphiphilic, and hydrophobic substances. The pH-responsive CDs-DOX are subsequently loaded into cubosomes to form an anticancer therapeutic nanosystem, CDs-DOXcubosome. Leveraging the unique properties of CDs-DOX and cubosomes, our CDs-DOX@cubosome can enter tumor tissue through the enhanced permeation and retention effect first and conduct membrane fusion with tumor cells to intracellularly release CDs-DOX. Then, the imine bond in CDs-DOX breaks under acidic conditions within human cancer cell lines (HeLa and HepG-2 cells), releasing DOX and achieving enhanced treatment of tumors. Additionally, fluorescent CDs can synchronously achieve real-time in situ diagnosis of tumor tissue. We demonstrate that our CDs-DOX@cubosome works as an excellent drug delivery system with therapeutic efficiency enhancement to the tumor and reduced side effects.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:7

Enthalten in:

ACS applied bio materials - 7(2024), 3 vom: 18. März, Seite 1958-1967

Sprache:

Englisch

Beteiligte Personen:

Xie, Caiyang [VerfasserIn]
Wang, Binke [VerfasserIn]
Qi, Xinyu [VerfasserIn]
Bao, Lei [VerfasserIn]
Zhai, Jiali [VerfasserIn]
Xu, Xu [VerfasserIn]
Zhang, Chunli [VerfasserIn]
Yu, Haitao [VerfasserIn]

Links:

Volltext

Themen:

7440-44-0
80168379AG
Anticancer
Carbon
Carbon dots
Cubosomes
Doxorubicin
Drug delivery
Journal Article

Anmerkungen:

Date Completed 19.03.2024

Date Revised 19.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1021/acsabm.3c01306

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM36853720X