Mesoporous silica nanoparticles (MSN) have attracted widespread attention in the field of drug delivery and biomedicine due to their unique structure and physicochemical properties. However, MSN still have shortcomings, such as premature drug release, poorly controlled release ability and poor targeting. Therefore, in order to reduce the damage of anti-cancer drugs to normal cells, improve their utilization rate and realize their selective release in tumor cells, "gated" stimuli-responsive mesoporous silicon nanomaterials as antitumor drug delivery carriers have attracted widespread interest among researchers. The "gated" stimuli-responsive nanovalves drug delivery system can only be removed under certain specific stimuli, which makes the drug maintain "zero release" before reaching the lesion site and achieve drug accumulation in tumor cells, effectively reducing the toxic and side effects on normal cells or tissues, and greatly exerting the efficacy of anti-cancer drugs. Therefore, the construction of stimuli-responsive nano-drug delivery systems have great application potential and significance in cancer treatment and controlled release of anti-cancer drugs. This review article emphasizes the research progress of the "gated" stimuli-responsive MSN (e.g. pH, redox potential, enzyme, temperature and light) or controlled drug release and cancer treatment since 2019.
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http://dx.doi.org/10.1007/s13205-023-03651-7 | DOI Listing |
J Nanobiotechnology
January 2025
Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China.
Extracellular vesicles (EVs) are membrane-bound vesicles that are shed or secreted from the cell membrane and enveloped by a lipid bilayer. They possess stability, low immunogenicity, and non-cytotoxicity, exhibiting extensive prospects in regenerative medicine (RM). However, natural EVs pose challenges, such as insufficient targeting capabilities, potential biosafety concerns, and limited acquisition pathways.
View Article and Find Full Text PDFDrug Deliv Transl Res
January 2025
School of Agricultural Science and Engineering, Liaocheng University, Liaocheng, 252059, China.
Erastin, as an effective ferroptosis inducer, has received extensive attention in anti-tumor research. To develop an oral nanocarrier for high efficient loading hydrophobic erastin, here we prepared a fluoro-liposome (FA-3 F-LS) by the self-assembly of the folic acid modified fluorinated amphiphiles-FA-3 F conjugates. The hydrophobic component of three perfluorooctyl chains endows the FA-3 F-LSs with high stability to resist the harsh gastrointestinal tract condition.
View Article and Find Full Text PDFDrug Deliv Transl Res
January 2025
Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland.
Functionalization of polymer nanoparticles (NPs) with targeting peptides is of interest for drug delivery applications to enhance tumor accumulation and penetration. Herein, we evaluated the feasibility of two different methods for the attachment of a tumor-penetrating peptide LinTT1 (AKRGARSTA) to poly(ethylene glycol)-block-poly(ε-caprolactone) (PCL-PEG) NPs: (1) "post-conjugation" onto pre-formed nanoparticles, and (2) "pre-conjugation", the synthesis and purification of peptide-polymer conjugates and subsequent nanoprecipitation of the conjugates diluted with non-functionalized polymers. Conjugation of the labelled peptide via maleimide-thiol chemistry was verified by gel permeation chromatography (GPC) and fluorescence measurements.
View Article and Find Full Text PDFProbiotics Antimicrob Proteins
January 2025
Faculty of Biotechnologies (BioTech), ITMO University, 9 Lomonosova Street, 191002, Saint Petersburg, Russia.
Antimicrobial peptides (AMPs) are small, positively charged biomolecules produced by various organisms such as animals, microbes, and plants. These AMPs play a significant role in defense mechanisms and protect from adverse conditions. The emerging problem of drug resistance in microbes poses a global health challenge in treating diseases.
View Article and Find Full Text PDFAAPS PharmSciTech
January 2025
School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia, 30332-0100, U.S.A..
Delivery of therapies into skin is attractive for medical indications including vaccination and treatment of dermatoses but is highly constrained by the stratum corneum barrier. Microneedle (MN) patches have emerged as a promising technology to enable non-invasive, intuitive, and low-cost skin delivery. When combined with biodegradable polymer formulations, MN patches can further enable controlled-release drug delivery without injection.
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