Protocol for Bulk-ATAC sequencing in head and neck squamous cell carcinoma

Area of Science:

• Epigenetics
• Genomics
• Cancer Biology

Background:

• Chromatin accessibility is crucial for understanding gene regulation in cancer.
• Transposase-accessible chromatin using sequencing (ATAC-seq) provides insights into open chromatin regions.
• Head and neck squamous cell carcinoma (HNSCC) requires refined molecular profiling methods.

Purpose of the Study:

• To present an optimized ATAC-seq protocol tailored for HNSCC cells.
• To elucidate chromatin accessibility changes at the epigenetic level in HNSCC.
• To provide a detailed methodology for researchers in the field.

Main Methods:

• Optimization of cell lysate preparation, transposition, and tagmentation steps.
• Detailed protocol for library amplification and purification.
• Guidelines for next-generation sequencing and data analysis of ATAC-seq libraries.

Main Results:

• The optimized protocol enables sensitive detection of chromatin accessibility.
• The method effectively identifies epigenetic alterations in HNSCC cells.
• Successful application of ATAC-seq for studying cancer cell responses to interventions.

Conclusions:

• The optimized ATAC-seq protocol is a valuable tool for HNSCC epigenetic research.
• This method facilitates the study of chromatin dynamics in cancer.
• The protocol supports the investigation of genetic and drug-induced changes in cancer cells.