Human cell line authentication: the critical first step in any project using human cell lines

Area of Science:

• Biotechnology
• Genetics
• Forensic Science

Background:

• Short tandem repeat (STR) typing is crucial for human cell line authentication.
• STR analysis relies on polymorphisms across multiple genetic loci for unique identification.
• Direct amplification of DNA from FTA paper has emerged as a viable method.

Purpose of the Study:

• To demonstrate the direct amplification of DNA from the HCT 116 human cell line using STR typing.
• To establish a unique STR profile for the HCT 116 cell line (ATCC® CCL-247™).
• To explore the utility of FTA paper for long-term DNA sample preservation.

Main Methods:

• Utilized direct amplification techniques for DNA extracted from HCT 116 cells stored on FTA paper.
• Performed Short Tandem Repeat (STR) typing to generate a unique genetic profile.
• Applied established STR analysis protocols for human cell line identification.

Main Results:

• Successfully generated a unique STR profile for the HCT 116 cell line via direct amplification.
• Demonstrated the feasibility of using FTA paper for storing and amplifying human DNA samples.
• Confirmed the efficacy of STR typing for cell line authentication using this method.

Conclusions:

• Direct amplification of DNA from FTA paper is an effective method for STR typing human cell lines.
• FTA paper offers a practical solution for long-term storage and direct analysis of DNA samples.
• This approach enhances the reliability of cell line authentication and DNA sample preservation.