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Updated: May 19, 2026
Next Generation Sequencing for the Detection of Actionable Mutations in Solid and Liquid Tumors
Published on: September 20, 2016
Frequent mutations in TP53 and CDKN2A found by next-generation sequencing of head and neck cancer cell lines
Anthony C Nichols1, John Yoo, David A Palma
1Departmentof Otolaryngology–Head and Neck Surgery, VictoriaHospital, London Health Science Centre, Room B3-431A, 800 Commissioners Rd E, London,ONN6A 5W9,Canada (Anthony.Nichols@lhsc.on.ca).
Objective:
To conduct high-throughput mutational analysis in 6 commonly used head and neck cancer cell lines. Comprehensive mutation analysis of primary head and neck squamous cell carcinoma (HNSCC) tumors has recently been reported, and mutations in the NOTCH receptors, TP53 and CDKN2A, were key findings. Established cell lines are valuable tools to study cancer in vitro. Similar high-throughput mutational analysis of head and neck cancer cell lines is necessary to confirm their mutational profile.
Design:
DNA was extracted from American Type Culture Collection (ATCC) cell lines Cal27, Detroit562, FaDu, SCC4, SCC15, and SCC25. Cell line identity was confirmed by short tandem repeat (STR) analysis, and human papillomavirus (HPV) infection status was assessed by real-time polymerase chain reaction. A total of 535 cancer-associated genes were sequenced through a limited exome capture on the Illumina HiSeq system.
Setting:
London Regional Cancer Program.
Results:
The identity of the 6 cell lines was confirmed by STR analysis, and all lines tested negative for HPV infection. We achieved an average of 129-fold coverage with paired-end 100 base-pair reads. Sequencing revealed an average of 38 damaging mutations in each cell line (range, 30-45). The TP53 mutations, predicted to confer loss of function, were noted in all cell lines, and damaging CDKN2A mutations were found in all lines except SCC15.
Conclusions:
High-throughput sequencing of head and neck cancer cell lines revealed similar mutations to those observed in primary tumors. Thus, these lines reflect the tumor biology of HNSCC and can serve as valuable models to study HNSCC in vitro.
Insights
High-throughput sequencing of head and neck cancer cell lines revealed mutations mirroring those in primary tumors. These cell lines are valuable models for studying head and neck squamous cell carcinoma (HNSCC) in vitro.
Area of Science:
- Oncology
- Genomics
- Cancer Cell Biology
Background:
- Comprehensive mutation analysis of primary head and neck squamous cell carcinoma (HNSCC) tumors has identified key mutations in NOTCH receptors, TP53, and CDKN2A.
- Established cancer cell lines are crucial for in vitro studies of cancer biology.
- High-throughput mutational analysis of HNSCC cell lines is needed to validate their genetic profiles.
Purpose of the Study:
- To perform high-throughput mutational analysis on six commonly used head and neck cancer cell lines.
- To confirm the mutational profiles of these cell lines and compare them to primary HNSCC tumors.
Main Methods:
- DNA was extracted from six American Type Culture Collection (ATCC) head and neck cancer cell lines (Cal27, Detroit562, FaDu, SCC4, SCC15, SCC25).
- Cell line identity was verified using short tandem repeat (STR) analysis.
- A total of 535 cancer-associated genes were sequenced using limited exome capture on the Illumina HiSeq platform.
Main Results:
- STR analysis confirmed the identity of all six cell lines; all tested negative for human papillomavirus (HPV) infection.
- Sequencing identified an average of 38 damaging mutations per cell line (range: 30-45).
- Loss-of-function TP53 mutations were present in all cell lines, and damaging CDKN2A mutations were found in five out of six lines.
Conclusions:
- High-throughput sequencing revealed that head and neck cancer cell lines harbor mutations similar to those found in primary HNSCC tumors.
- These cell lines accurately reflect the tumor biology of HNSCC.
- The analyzed cell lines serve as valuable in vitro models for HNSCC research.
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