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Despite the application of aggressive surgery, radiotherapy and chemotherapy in clinics, brain tumors are still a difficult health challenge due to their fast development and poor prognosis. Brain tumor-targeted drug delivery systems, which increase drug accumulation in the tumor region and reduce toxicity in normal brain and peripheral tissue, are a(More)
AIM To optimize formulation methods for loading gemcitabine (GEM), the main drug against pancreatic cancer, into albumin nanoparticles for extended blood circulation and improved efficacy. METHODS GEM was loaded into two sizes of disolvation-crosslinked bovine serum albumin nanoparticles, with a mean diameter of 109.7 nm and 405.6 nm, respectively, by(More)
The lymphatic system has an important defensive role in the human body. The metastasis of most tumors initially spreads through the surrounding lymphatic tissue and eventually forms lymphatic metastatic tumors; the tumor cells may even transfer to other organs to form other types of tumors. Clinically, lymphatic metastatic tumors develop rapidly. Given the(More)
To evaluate the effect of borneol on the brain targeting efficiency of aprotinin-conjugated poly (ethyleneglycol)–poly (L-lactic-co-glycolic acid) nanoparticles (Apr-NP) and the activity of huperzine A (Hup A) loaded nanoparticles to AD rats . Apr-NP was prepared by emulsion and solvent evaporation method. The uptake of Apr-NP alone or combined with borneol(More)
The oncoproteins MDM2 and MDMX negatively regulate the activity and stability of the tumor suppressor protein p53 and are important molecular targets for anticancer therapy. Grafting four residues of p53 critical for MDM2/MDMX binding to the N-terminal alpha-helix of BmBKTx1, a scorpion toxin isolated from the venom of the Asian scorpion Buthus martensi(More)
BACKGROUND AND OBJECTIVES Gemcitabine (Gem) is far from satisfactory as the first-line regimen for pancreatic cancer, and the emergence of albumin nanoparticles offers new hope for the delivery of Gem. In this study, Gem-loaded human serum albumin nanoparticles (Gem-HSA-NPs) were successfully synthesized, characterized, and tested on a BxPC-3 cell line both(More)
To investigate a fatty acid-based strategy for efficient brain targeted gene delivery and to understand mechanism(s) of this small molecule-mediated brain gene delivery strategy. A series of fatty acids (FAs) were conjugated with polyethylenimine (PEI25k). A near-infrared fluorescence probe, IR820, was used to study in vivo and ex vivo brain targeting(More)
Obstructive sleep apnea is associated with inflammation and oxidative stress in lung tissues and can lead to metabolic abnormalities. We investigated the effects of angiotensin1-7 [Ang-(1-7)] on lung injury in rats induced by chronic intermittent hypoxia (CIH). We randomly assigned 32 male Sprague-Dawley rats (180-200 g) to normoxia control (NC),(More)
Poly-amidoamine (PAMAM) dendrimers are proposed to be one of the most promising drug-delivery nanomaterials. However, the toxicity of PAMAM dendrimers on the central nervous system seriously hinders their medical applications. The relationship between oxidative stress and autophagy induced by PAMAM dendrimers, and its underlying mechanism remain confusing.(More)
Histone deacetylase (HDAC) inhibitors are widely used in clinical investigation as novel drug targets. For example, panobinostat and vorinostat have been used to treat patients with melanoma. However, HDAC inhibitors are small-molecule compounds without a specific target, and their mechanism of action is unclear. Therefore, it is necessary to investigate(More)