Nanoparticle-Mediated Diagnostic and Therapeutic Applications in Oncology

Nanoparticles have emerged as versatile platforms for the precise diagnosis and treatment of cancer, combining tailored physicochemical properties with active and passive targeting mechanisms to improve efficacy and reduce off-target effects. By exploiting the enhanced permeability and retention effect, surface ligands and stimuli-responsive coatings, these nanoscale agents can accumulate selectively in tumours, enable high-resolution imaging across modalities and deliver therapeutic payloads in a controlled manner. Advances in upconversion and paramagnetic constructs have expanded non-invasive molecular sensing via magnetic resonance and optical techniques, while multifunctional formulations support image-guided radiotherapy, photodynamic and photothermal treatments. Collectively, nanoparticle theranostics underpin a shift towards precision oncology by offering real-time monitoring of biodistribution and treatment response, minimising systemic toxicity and paving the way for personalised intervention strategies.

Research from Nature Portfolio

Researchers have developed carbon-encapsulated manganese(ii) complexes that exhibit exceptionally high longitudinal relaxivity and cross the intact blood–brain barrier to delineate submillimetre brain and liver tumours with clear margins in magnetic resonance images. This approach offers heightened sensitivity, homogeneous tumour penetration and low toxicity compared to conventional gadolinium chelates. Another innovation employs activatable inflammation magnetic resonance imaging (aiMRI) via hybrid nanovesicles that respond to acute oxidative and inflammatory cues post-radiotherapy. By correlating early changes in T₁ relaxation with ensuing immune activation and tumour inhibition, this strategy provides a non-invasive method for predicting radiotherapy outcomes and stratifying patients for precision treatment planning.

Nanoparticle-Mediated Diagnostic and Therapeutic Applications in Oncology publication trend

The graph below shows the total number of articles in nanoparticle-mediated diagnostic and therapeutic applications in oncology across all publications each year (not limited to Nature Index journals).

Technical terms

Enhanced permeability and retention (EPR) effect: Passive accumulation of nanoparticles in tumour tissue due to leaky vasculature and poor lymphatic drainage.

Theranostics: Integrated diagnostic and therapeutic approach using a single agent to image and treat disease.

Relaxivity: Efficiency by which a contrast agent alters nuclear magnetic resonance relaxation times per unit concentration.

Upconversion nanoparticles: Nanomaterials that absorb near-infrared light and emit higher-energy photons for deep-tissue imaging.

Stimuli-responsive nanoparticles: Particles engineered to change structure or release cargo upon specific biological or external triggers.

References

1. New opportunities for RGD-engineered metal nanoparticles in cancer. Molecular Cancer (2023).
2. Molecular imaging of tumour‐associated pathological biomarkers with smart nanoprobe: From “Seeing” to “Measuring”. Exploration (2023).
3. Stimuli-activatable nanomedicine meets cancer theranostics. Theranostics (2023).
4. Carbonized paramagnetic complexes of Mn (II) as contrast agents for precise magnetic resonance imaging of sub-millimeter-sized orthotopic tumors. Nature Communications (2022).
5. Early stratification of radiotherapy response by activatable inflammation magnetic resonance imaging. Nature Communications (2020).