Abstract: A potential prognostic biomarker is based on a combination of a composite score generated by sequence analysis of global human endogenous retrovirus (hERV)/retro-transposon transactivation and a cell signature generated using deconvolution of immune cells within a tumor sample for predicting the efficacy of chemotherapeutic agents and immune checkpoint inhibitors. Correlation analysis of the composite score with cell signature within a tumor sample enables survival analysis in individuals receiving chemotherapeutic agents and immune checkpoint inhibitors.

Abstract: Presented are methods and compositions for spatial detection and analysis of nucleic acids in a tissue sample. The methods can enable the characterization of transcriptomes and/or genomic variations in tissues while preserving spatial information about the tissue.

Abstract: Presented are methods and compositions for spatial detection and analysis of nucleic acids in a tissue sample. The methods can enable the characterization of transcriptomes and/or genomic variations in tissues while preserving spatial information about the tissue.

Abstract: Presented herein are methods and compositions for determining MSI status and LS screening in a single test of colorectal cancer tissue. Also presented herein are methods for determining MSI status in a sample of cell-free DNA obtained from blood obtained from a cancer patient.

Abstract: Presented herein are techniques for determining microsatellite instability. The techniques include generating a reference sample dataset representative of or mimicking a hypothetical matched sample for an individual sample of interest. The reference sample dataset may be generated from a set of reference normal samples that are not matched to the sample of interest. For samples of interest lacking a matched sample, the reference sample dataset may be used to determine microsatellite instability and to provide an indication of a presence, absence, or degree of microsatellite instability of the sample of interest. The reference sample dataset may be generated such that individual microsatelliate regions associated with a high degree of variability between ethnic groups are filtered out, masked, or otherwise not considered.

Abstract: Presented are methods and compositions for spatial detection and analysis of nucleic acids in a tissue sample. The methods can enable the characterization of transcriptomes and/or genomic variations in tissues while preserving spatial information about the tissue.