Related Experiment Video
Updated: Mar 24, 2026

Synthesis of Aptamer-PEI-g-PEG Modified Gold Nanoparticles Loaded with Doxorubicin for Targeted Drug Delivery
Published on: June 23, 2020
Mesoporous Silica Nanoparticles in Cancer Therapy: Relevance of the Targeting Function
Luigi Pasqua, Antonella Leggio, Diego Sisci
1Department of Pharmacy and Health and Nutritional Sciences, Via P. Bucci, cubo 34/B University of Calabria, 87036 Arcavacata di Rende (CS) Italy. catia.morelli@unical.it.
Abstract:
In the last years, the oncologic research is focusing on the optimization of the clinical approach to the tumor disease, through the development of new therapeutic strategies combining currently used antineoplastic drugs to targeted delivery systems. In fact, due to the drugs poor selectivity for cancer cells, an highly aggressive style of dosing is necessary to eradicate tumors, causing severe toxicity to normal cells. Therefore, localized drug delivery would, ideally, improve the therapeutic efficacy, minimizing side effects. Mesoporous silica nanoparticles (MSNs) have been proposed as a promising class of versatile drug/DNA delivery vehicles, as well as efficient tools for fluorescent cell tracking. To date, the major limitation is that MSNs enter the cells regardless of a target-specific functionalization. Therefore, this review is aimed to give a brief up to date overview on mesoporous silica based-drug delivery vehicles, specifically applied to tumor therapy, giving particular emphasis to the importance of a targeting function grafted on the carrier surface, so to avoid an indiscriminate uptake by cells.
Insights
Mesoporous silica nanoparticles offer targeted drug delivery for cancer therapy. Functionalizing these nanoparticles with targeting ligands is crucial to enhance efficacy and minimize side effects by preventing indiscriminate cellular uptake.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Oncology
Background:
- Current cancer therapies require aggressive dosing due to poor drug selectivity, leading to severe toxicity.
- Targeted drug delivery systems aim to improve therapeutic efficacy and reduce side effects by localizing drug action.
- Mesoporous silica nanoparticles (MSNs) are explored as drug/DNA delivery vehicles and for cell tracking.
Purpose of the Study:
- To provide an overview of mesoporous silica-based drug delivery vehicles for tumor therapy.
- To emphasize the importance of surface functionalization for targeted delivery.
- To address the limitation of indiscriminate cellular uptake of MSNs.
Main Methods:
- Review of existing literature on mesoporous silica nanoparticles in cancer therapy.
- Focus on strategies for surface functionalization of MSNs.
- Analysis of targeting approaches to improve cellular specificity.
Main Results:
- MSNs show promise as versatile drug delivery systems.
- Lack of targeting functionality leads to non-specific cellular uptake.
- Surface modification is key to achieving targeted delivery and enhanced therapeutic outcomes.
Conclusions:
- Targeting functionalization of mesoporous silica nanoparticles is essential for effective tumor therapy.
- Surface modification can prevent indiscriminate uptake, improving drug selectivity and reducing toxicity.
- Further research into targeted MSNs holds significant potential for optimizing cancer treatment.
Related Concept Videos
Targeted Cancer Therapies
There are several types of targeted therapies against...
Targeted Cancer Therapies
Site-Targeted Drug Delivery Systems: Polymeric Carriers
Cancer Therapies
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
Modified-Release Drug Delivery Systems: Site-Targeted
Drugs that Stabilize Microtubules

