Thermo Fisher Scientific Oncomine TCR Beta-SR Assay

Thermo Fisher Scientific has launched the Oncomine TCR Beta-SR Assay, a sequencing assay to characterize T-cell clonality in the tumor microenvironment. The test will interrogate the CDR3 region of the beta chain of the T-cell receptor, a region that is responsible for antigen recognition and helps to identify T-cell clones. The assay uses dual barcode indexing, which allows identification of low-frequency clones for potential tracking of minimal residual disease. It is optimized for formalin-fixed paraffin-embedded tissue, peripheral blood leukocytes, peripheral blood mononuclear cells, or cell-free DNA, and can work with either DNA or RNA as input.