Related Experiment Video
Updated: Jun 1, 2025
Surface-enhanced Resonance Raman Scattering Nanoprobe Ratiometry for Detecting Microscopic Ovarian Cancer via Folate Receptor Targeting
Published on: March 25, 2019
Ultrasmall Au-GRHa Nanosystem for FL/CT Dual-Mode Imaging-Guided Targeting Photothermal Therapy of Ovarian Cancer
Annan Liu1, Lei Li1,2, Ze Wang3
1State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China.
Abstract:
As the most common and lethal cancer of the female gonads, ovarian cancer (OC) has a grave impact on people's health. OC is asymptomatic, insidious in onset, difficult to diagnose and treat, fast-growing, and easy to metastasize and has poor prognosis and high mortality. How to detect OC as early as possible and treat it without side effects has become a challenging medical problem. Herein, the ultrasmall Au-GRHa nanosystem was designed for dual-mode imaging-guided photothermal therapy of OC. The synthesized Au-GRHa nanosystem has ultrasmall size, good biocompatibility, and excellent fluorescence and CT imaging performance, which could detect the OC tumor accurately and intuitively and is expected to provide intraoperative visual navigation for clinical surgery. With its excellent photothermal property, the Au-GRHa nanosystem can be utilized for photothermal therapy of OC, thus providing an alternative to, and reducing the hazards posed by, traditional radiotherapy and chemotherapy. In addition, GnRHa endows the AuNDs with excellent ability to target the Gonadotropin-Releasing Hormone Receptor (GnRH-R), which enhances the uptake of AuNDs by OC tumor cells, improving the targeting accuracy and efficacy of photothermal therapy for OC. This work will facilitate the biomedical applications of the Au-GRHa nanosystem and provide good insights into FL/CT imaging-guided photothermal therapy of OC.
Insights
Researchers developed an ultrasmall gold-based nanosystem (Au-GRHa) for early ovarian cancer (OC) detection and treatment. This dual-mode imaging system offers precise tumor visualization and targeted photothermal therapy, reducing traditional treatment side effects.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Oncology
Background:
- Ovarian cancer (OC) is a leading cause of cancer death in women, characterized by late diagnosis and poor prognosis.
- Current diagnostic and therapeutic strategies for OC face significant challenges, including limited efficacy and severe side effects.
Purpose of the Study:
- To design and evaluate an ultrasmall gold-based nanosystem (Au-GRHa) for dual-mode imaging-guided photothermal therapy of ovarian cancer.
- To enhance early detection and targeted treatment of OC, offering a safer alternative to conventional therapies.
Main Methods:
- Synthesis of ultrasmall Au-GRHa nanosystem with fluorescence and CT imaging capabilities.
- Evaluation of Au-GRHa nanosystem's biocompatibility, imaging performance, and targeting ability via GnRH-R.
- Assessment of photothermal therapy efficacy using the Au-GRHa nanosystem in OC models.
Main Results:
- The Au-GRHa nanosystem demonstrated ultrasmall size, good biocompatibility, and excellent fluorescence and CT imaging performance for accurate OC tumor detection.
- The nanosystem provided intraoperative visual navigation and exhibited effective photothermal properties for OC treatment.
- GnRHa targeting of GnRH-R enhanced Au-GRHa uptake by OC cells, improving therapeutic accuracy and efficacy.
Conclusions:
- The Au-GRHa nanosystem is a promising tool for dual-mode imaging-guided photothermal therapy of ovarian cancer.
- This approach offers improved diagnostic accuracy, targeted treatment, and reduced side effects compared to traditional methods.
- The study highlights the potential of Au-GRHa nanosystems for advancing OC biomedical applications and clinical interventions.
More Related Videos
14:10Contrast Ultrasound Targeted Treatment of Gliomas in Mice via Drug-Bearing Nanoparticle Delivery and Microvascular Ablation
Published on: December 15, 2010
10:21A Coregistered Ultrasound and Photoacoustic Imaging Protocol for the Transvaginal Imaging of Ovarian Lesions
Published on: March 3, 2023