Combination of selol nanocapsules and magnetic hyperthermia hinders breast tumor growth in aged mice after a short-time treatment.

Short time treatment with reduced dosages of selol-loaded PLGA nanocapsules (NcSel) combined with magnetic hyperthermia (MHT) is evaluated in aged Erhlich tumor-bearing mice. Clinical, hematological, biochemical, genotoxic and histopathological parameters are assessed during 7 d treatment with NcSel and MHT, separately or combined. The time evolution of the tumor volume is successfully modeled using the logistic mathematical model.

Anti-CEA tagged iron nanoparticles for targeting triple-negative breast cancer.

Systemic therapy is generally required for breast cancer. However, treatment toxicity and side effects are a concern, especially for triple-negative breast cancer (TNBC), a subtype that usually develops resistance to chemotherapy. To overcome this issue, new nanoformulations capable of targeting cancer cells have been developed and alternative biomarkers have been explored as target molecules for TNBC management.

Tumor cell death in orthotopic breast cancer model by NanoALA: a novel perspective on photodynamic therapy in oncology.

Nano-5-aminolevulic acid (NanoALA)-mediated photodynamic therapy (PDT), an oil-in-water polymeric nanoemulsion of ALA, was evaluated in a murine model of breast cancer. Analysis of ALA-derived protoporphyrin IX production and acute toxicity test, biocompatibility and treatment efficacy, and long-term effect of NanoALA-PDT on tumor progression were performed. The nanoformulation favored the prodrug uptake by tumor cells in a shorter time (1.

Synergistic Antitumor Efficacy of Magnetohyperthermia and Poly(lactic-co-glycolic acid)-Encapsulated Selol in Ehrlich Breast Adenocarcinoma Treatment in Elderly Swiss Mice.

Nanobiotechnology strategies for cancer treatments are currently being tested with increasing interest, except in elderly groups. It is well established that breast cancer incidence increases with age and that traditional therapies usually generate severe adverse effects, especially for elderly groups. To investigate if the benefits of nanotechnology could be extended to treating cancer in this group, citrate-coated maghemite nanoparticles (NpCit) were used for magnetohyperthermia (MHT) in combination with the administration of PLGA-Selol nanocapsule (NcSel), a formulation with antioxidant and antitumor activity.

The influence of female mice age on biodistribution and biocompatibility of citrate-coated magnetic nanoparticles.

Background: Magnetic nanoparticles (MNPs) have been successfully tested for several purposes in medical applications. However, knowledge concerning the effects of nanostructures on elderly organisms is remarkably scarce.

Purpose: To fill part of this gap, this work aimed to investigate biocompatibility and bio-distribution aspects of magnetic nanoparticles coated with citrate (NpCit) in both elderly and young healthy mice.