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Updated: Jun 9, 2026
A Novel High-resolution In vivo Imaging Technique to Study the Dynamic Response of Intracranial Structures to Tumor Growth and Therapeutics
Published on: June 16, 2013
Real-time morphometric analysis of targeted therapy for neuroblastoma cells in monolayer and 3D hydrogels using
Sofia Granados-Aparici1,2, Isaac Vieco-Martí1,2, Amparo López-Carrasco1,2
1Pathology Department, Medical School, University of Valencia-INCLIVA, Valencia, Spain.
Abstract:
High-risk neuroblastoma (HR-NB) patient treatment is currently insufficient and challenging due to its high clinical, morphological, and genetic heterogeneity as well as the scarcity of available samples for research. We used a gelatin- and silk fibroin-based hydrogel system with cross-linked vitronectin (VN) as an artificial biomimetic three-dimensional (3D) environment to mirror aggressive neuroblastoma (NB) tumors and tested long-term cell response to Cilengitide (CLG). Based on our previous studies and others using the integrin inhibitor CLG as a potential mechanotherapy drug, we show that CLG caused cell detachment in monolayer cultures of MYCN-amplified SK-N-BE (2) and ALK-mutated SH-SY5Y human neuroblastoma cell lines. Cell detachment and aggregation were maintained in hydrogel-free monolayer cells whereas cells embedded in hydrogels presented different responses to treatment, suggesting differential anoikis resistance between the two cell lines. This underscores the advantages of testing therapeutic approaches using real-time imaging of tumor cells in 3D biomimetic models and its contribution to precision medicine.
Insights
Researchers developed a 3D biomimetic hydrogel to study high-risk neuroblastoma (HR-NB) treatment. This model revealed differential cell responses to Cilengitide (CLG), aiding precision medicine for neuroblastoma.
Area of Science:
- Biomaterials Science
- Cancer Biology
- Regenerative Medicine
Background:
- High-risk neuroblastoma (HR-NB) presents significant treatment challenges due to its heterogeneity and limited research samples.
- Current therapeutic strategies for HR-NB are insufficient, necessitating novel research models.
Purpose of the Study:
- To develop and utilize a biomimetic 3D hydrogel system to investigate the long-term cellular response of aggressive neuroblastoma (NB) to Cilengitide (CLG).
- To evaluate the efficacy of CLG as a potential mechanotherapy for HR-NB within a 3D tumor microenvironment.
Main Methods:
- A gelatin- and silk fibroin-based hydrogel system cross-linked with vitronectin (VN) was employed as a 3D biomimetic environment.
- Monolayer and 3D hydrogel cultures of MYCN-amplified (SK-N-BE(2)) and ALK-mutated (SH-SY5Y) human neuroblastoma cell lines were treated with CLG.
- Real-time imaging was used to observe and analyze cell detachment, aggregation, and anoikis resistance.
Main Results:
- Cilengitide (CLG) induced cell detachment in monolayer cultures of both neuroblastoma cell lines.
- Cells embedded within the 3D hydrogel exhibited differential responses to CLG treatment compared to monolayer cultures.
- Evidence of differential anoikis resistance was observed between the two cell lines when cultured in the 3D hydrogel.
Conclusions:
- The 3D biomimetic hydrogel model effectively mirrors aggressive neuroblastoma tumors, providing a superior platform for therapeutic evaluation.
- Testing therapeutic approaches in 3D models is crucial for understanding differential cell responses and advancing precision medicine for neuroblastoma.
- The study highlights the potential of Cilengitide (CLG) as a mechanotherapy and the importance of the tumor microenvironment in treatment response.
