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Growing Desmoplastic Three-Dimensional Pancreatic Cancer Spheroids from Co-Culture

  • 0Department of Pharmaceutical Sciences, South Dakota State University.
Journal of Visualized Experiments : Jove +

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October 14, 2024

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October 14, 2024

View abstract on PubMed

Summary

This summary is machine-generated.

This study presents a simple protocol for creating 3D pancreatic cancer spheroids. These models mimic the tumor microenvironment, aiding in the development of more effective pancreatic ductal adenocarcinoma therapies.

Area Of Science

  • Oncology
  • Biomedical Engineering
  • Cancer Biology

Background

  • Pancreatic ductal adenocarcinoma (PDAC) has a poor prognosis, largely due to its dense desmoplastic extracellular matrix (ECM) that hinders treatment efficacy.
  • Existing pre-clinical models often fail to accurately predict clinical outcomes for PDAC therapies.
  • A clinically relevant model is crucial for evaluating novel therapeutic strategies against PDAC.

Purpose Of The Study

  • To describe a simple protocol for generating 3D desmoplastic spheroids that mimic the pancreatic tumor microenvironment.
  • To establish a clinically relevant model for assessing the response of pancreatic cancer to experimental therapies.

Main Methods

  • Human pancreatic stellate cells (HPaSteC) and PANC-1 cells were co-cultured in a 1:2 ratio.
  • Cells were cultured in a poly-HEMA coated, 96-well low attachment U-well plate, centrifuged, and incubated for 14 days with media changes every 3 days.
  • Spheroid volume was monitored, and ECM components like collagen-I, hyaluronic acid, fibronectin, and laminin were assessed.

Main Results

  • A protocol for generating 3D desmoplastic spheroids with a robust, naturally formed ECM was successfully established.
  • Mature spheroids, with an average volume of 0.048 ± 0.012 mm³, were formed after 14 days of culture.
  • The model recapitulates key ECM components found in clinical PDAC tumors.

Conclusions

  • The developed 3D spheroid model provides a clinically relevant platform for evaluating PDAC therapies.
  • This model effectively mimics the desmoplastic tumor microenvironment, overcoming limitations of previous models.
  • The protocol is simple and does not require external scaffolds, facilitating its use in therapeutic assessments.