Separating mouse malignant cell line (EL4) from neonate spermatogonial stem cells utilizing microfluidic device in...

Area of Science:

• Reproductive biology
• Cancer research
• Biotechnology

Background:

• Childhood cancer survivors often face future infertility due to azoospermia.
• Isolation and purification of spermatogonial stem cells (SSC) are critical for fertility preservation.
• Effective decontamination of cancerous cells is a necessary first step.

Purpose of the Study:

• To separate malignant EL4 cells from mouse spermatogonial stem cells (SSC) in vitro.
• To evaluate the efficacy of a microfluidic device for cell separation.
• To develop a method for preserving fertility in cancer survivors.

Main Methods:

• Sixty neonatal mouse SSC were isolated and co-cultured with EL4 cancer cells.
• Cells were divided into a control group and a microfluidic separation group.
• Cell percentages were analyzed using flow cytometry, immunocytochemistry, and RT-PCR.

Main Results:

• The microfluidic device achieved high purity separation: 80.38% SSC and 0.32% EL4 in the larger outlet.
• The smaller outlet yielded 0.12% SSC and 42.14% EL4.
• The control group showed lower SSC purity (21.44%) compared to the microfluidic method.

Conclusions:

• Microfluidic device technology is effective for separating cancer cells from SSC.
• This method offers a promising approach for fertility preservation in cancer survivors.
• The study highlights the potential of microfluidics in regenerative medicine and cancer aftercare.