FFPE Breast Cancer Tissue Blocks: Extraction & NGS for Oncology Labs

Frozen sections are prepared from fresh tissue and processed quickly, which can preserve nucleic acid quality but is less suited for long-term storage. FFPE tissue is formalin-fixed and paraffin-embedded, making it widely available in pathology archives. However, FFPE samples often show crosslinking and fragmentation, so extraction kits must be optimized for these challenges.

Yes, FFPE breast cancer tissue blocks are commonly used for NGS when extraction methods are designed for fragmented and crosslinked material. Cambrian's FFPE workflows support high-quality RNA and high-molecular-weight gDNA recovery for sequencing, mutation analysis, fusion detection, and transcriptomic studies. Sample quality, fixation history, and tumor content still influence final sequencing performance.

FFPE tissue can be used to extract both RNA and genomic DNA for oncology applications. RNA supports gene expression profiling, fusion detection, immune profiling, and transcriptome studies, while gDNA is used for PCR, mutation analysis, tumor content studies, and NGS workflows. Choosing the right kit depends on your downstream assay and sample input requirements.

For the Cambrian FFPE RNA Isolation Kit, input can be as low as four 10 µm FFPE tissue curls. The kit is designed to recover RNA from limited or challenging samples while addressing FFPE-related fragmentation and crosslinking. Actual yield and quality depend on intrinsic sample condition, fixation quality, storage history, and tissue composition.

The Cambrian FFPE RNA Isolation Kit is designated RUO, meaning it is intended for research use only unless further validation is completed. The Cambrian FFPE gDNA Isolation Kit is described for research and clinical diagnostic laboratory settings. Labs should confirm regulatory fit, validation requirements, and intended use before adopting any workflow for patient testing.

Both FFPE RNA and gDNA workflows are built for rapid processing. The RNA kit eliminates overnight lysis requirements for same-day processing, while the gDNA kit offers a 28-minute workflow after lysis. These shorter workflows help oncology and molecular labs improve turnaround time, reduce batching pressure, and support more efficient sample handling.