Breast Cancer Cell Cultures on Electrospun Poly(ε-Caprolactone) as a Potential Tool for Preclinical Studies on...

Area of Science:

• Biomaterials Science
• Cancer Research
• Cell Biology

Background:

• Two-dimensional (2D) in vitro cultures fail to replicate the complex cancer microenvironment, leading to poor translation of anticancer drugs from lab to clinic.
• Developing more predictive in vitro models is crucial for effective anticancer drug discovery and development.

Purpose of the Study:

• To investigate the potential of electrospun polycaprolactone (PCL) scaffolds for creating advanced in vitro cancer cell cultures.
• To characterize HCC1954 cell cultures grown on PCL and assess their response to standard chemotherapeutic agents.

Main Methods:

• Morphological analysis of HCC1954 cells cultured on electrospun PCL scaffolds.
• Cell viability assays, histochemical staining, immunofluorescence, and RT-PCR were employed.
• Comparison of PCL-based cultures with traditional polystyrene plate cultures.

Main Results:

• Electrospun PCL facilitated the in vitro formation of cultures with significant mucopolysaccharide production.
• A notable increase in the cancer stem cell population was observed in PCL-based cultures.
• PCL cultures exhibited reduced sensitivity to doxorubicin and electroporation/bleomycin compared to polystyrene cultures.

Conclusions:

• Electrospun PCL scaffolds support the development of in vitro cancer models that better mimic the tumor microenvironment.
• These PCL-based cultures demonstrate altered drug sensitivity, suggesting improved predictive value for preclinical anticancer drug screening.
• PCL-based cultures represent a promising tool for enhancing the reliability of in vitro screening in anticancer drug development.