The Chick Embryo Chorioallantoic Membrane Assay as a Short-Term Exploratory Model for Cervical Cancer Research

Area of Science:

• Oncology
• Developmental Biology
• In vivo models

Background:

• Cervical cancer (CC) poses a significant public health challenge, with chemotherapy-resistant tumors necessitating novel therapeutic strategies.
• Existing preclinical models like xenografts and organoids are valuable but resource-intensive and time-consuming.
• The chick embryo chorioallantoic membrane (CAM) assay presents a rapid, accessible in vivo alternative for tumor research.

Purpose of the Study:

• To optimize the CAM assay for cervical cancer tumor induction using HeLa and SiHa cell lines.
• To establish a standardized and comparative methodological approach for CC xenografts on the CAM.
• To validate the CAM assay as a viable platform for preclinical cervical cancer studies.

Main Methods:

• Optimization of the CAM assay protocol for cervical cancer cell lines (HeLa, SiHa).
• Tumor implantation onto the chorioallantoic membrane of developing chicken embryos.
• Assessment of tumor vascularization and cell proliferation (Ki-67 expression) in CAM xenografts.

Main Results:

• Successfully generated vascularized cervical cancer tumors on the CAM using HeLa and SiHa cells.
• Demonstrated Ki-67 expression in the induced tumors, indicating proliferative activity.
• The optimized CAM assay proved effective for rapid tumor induction and characterization.

Conclusions:

• The optimized CAM assay is a rapid, low-cost, and technically accessible in vivo model for cervical cancer research.
• This model facilitates the study of cervical tumor developmental biology and accelerates preclinical investigation of therapeutic molecules.
• The CAM assay provides a valuable platform for exploring novel therapeutic strategies against cervical cancer.