Nanocomplex of Berberine with C Fullerene Is a Potent Suppressor of Lewis Lung Carcinoma Cells Invasion In Vitro and Metastatic Activity In Vivo.

Effective targeting of metastasis is considered the main problem in cancer therapy. The development of herbal alkaloid Berberine (Ber)-based anticancer drugs is limited due to Ber' low effective concentration, poor membrane permeability, and short plasma half-life. To overcome these limitations, we used Ber noncovalently bound to C fullerene (C).

Mode of photoexcited C fullerene involvement in potentiating cisplatin toxicity against drug-resistant L1210 cells.

C fullerene has received great attention as a candidate for biomedical applications. Due to unique structure and properties, C fullerene nanoparticles are supposed to be useful in drug delivery, photodynamic therapy (PDT) of cancer, and reversion of tumor cells' multidrug resistance. The aim of this study was to elucidate the possible molecular mechanisms involved in photoexcited C fullerene-dependent enhancement of cisplatin toxicity against leukemic cells resistant to cisplatin.

C Fullerene as an Effective Nanoplatform of Alkaloid Berberine Delivery into Leukemic Cells.

A herbal alkaloid Berberine (Ber), used for centuries in Ayurvedic, Chinese, Middle-Eastern, and native American folk medicines, is nowadays proved to function as a safe anticancer agent. Yet, its poor water solubility, stability, and bioavailability hinder clinical application. In this study, we have explored a nanosized carbon nanoparticle-C fullerene (C)-for optimized Ber delivery into leukemic cells.

Synergy of Chemo- and Photodynamic Therapies with C Fullerene-Doxorubicin Nanocomplex.

A nanosized drug complex was explored to improve the efficiency of cancer chemotherapy, complementing it with nanodelivery and photodynamic therapy. For this, nanomolar amounts of a non-covalent nanocomplex of Doxorubicin (Dox) with carbon nanoparticle C fullerene (C) were applied in 1:1 and 2:1 molar ratio, exploiting C both as a drug-carrier and as a photosensitizer. The fluorescence microscopy analysis of human leukemic CCRF-CEM cells, in vitro cancer model, treated with nanocomplexes showed Dox's nuclear and C's extranuclear localization.

Toxicity of C fullerene-cisplatin nanocomplex against Lewis lung carcinoma cells.

Cisplatin (Cis-Pt) is the cytotoxic agent widely used against tumors of various origin, but its therapeutic efficiency is substantially limited by a non-selective effect and high toxicity. Conjugation of Cis-Pt with nanocarriers is thought to be one option to enable drug targeting. The aim of this study was to estimate toxic effects of the nanocomplex formed by noncovalent interaction of C fullerene with Cis-Pt against Lewis lung carcinoma (LLC) cells in comparison with free drug.