Abstract: Disclosed herein are methods for performing in situ sequencing of RNA transcripts with non-uniform 5? ends. During reverse transcription (RT) of RNA transcripts, RT enzyme is induced to “template-switch” to a separate oligonucleotide provided as the template for the upstream flanking region. This flanking region is grafted onto the beginning of the cDNA, enabling padlock probe detection, rolling circle amplification, and fluorescent in situ sequencing. Overall, the disclosed method for in situ sequencing can be applicable for analyzing exogenously introduced transcripts (e.g., identifying and determining impact of a perturbation including a CRISPR perturbation or shRNA/siRNA/ASO perturbation), analyzing naturally occurring transcripts (e.g., measuring gene expression, detecting splicing events), and analyzing modified, naturally occurring transcripts (e.g., detecting mutations or gene edits).

Abstract: Disclosed herein are methods for performing in situ sequencing of RNA transcripts with non-uniform 5? ends. During reverse transcription (RT) of RNA transcripts, RT enzyme is induced to “template-switch” to a separate oligonucleotide provided as the template for the upstream flanking region. This flanking region is grafted onto the beginning of the cDNA, enabling padlock probe detection, rolling circle amplification, and fluorescent in situ sequencing. Overall, the disclosed method for in situ sequencing can be applicable for analyzing exogenously introduced transcripts (e.g., identifying and determining impact of a perturbation including a CRISPR perturbation or shRNA/siRNA/ASO perturbation), analyzing naturally occurring transcripts (e.g., measuring gene expression, detecting splicing events), and analyzing modified, naturally occurring transcripts (e.g., detecting mutations or gene edits).

Abstract: Disclosed herein are methods for performing in situ sequencing of RNA transcripts with non-uniform 5? ends. During reverse transcription (RT) of RNA transcripts, RT enzyme is induced to “template-switch” to a separate oligonucleotide provided as the template for the upstream flanking region. This flanking region is grafted onto the beginning of the cDNA, enabling padlock probe detection, rolling circle amplification, and fluorescent in situ sequencing. Overall, the disclosed method for in situ sequencing can be applicable for analyzing exogenously introduced transcripts (e.g., identifying and determining impact of a perturbation including a CRISPR perturbation or shRNA/siRNA/ASO perturbation), analyzing naturally occurring transcripts (e.g., measuring gene expression, detecting splicing events), and analyzing modified, naturally occurring transcripts (e.g., detecting mutations or gene edits).

Abstract: Provided herein are methods of pooled screening of cells from different genetic backgrounds. Also provided herein are computer-implemented methods for aligning between a first plurality of images and a second plurality of images of biological samples.

Abstract: The present disclosure relates to methods of pooled optical screening of genetically barcoded cells comprising genetic perturbations, and simultaneous transcriptional measurements.

Abstract: Disclosed herein are methods for performing in situ sequencing of RNA transcripts with non-uniform 5? ends. During reverse transcription (RT) of RNA transcripts, RT enzyme is induced to “template-switch” to a separate oligonucleotide provided as the template for the upstream flanking region. This flanking region is grafted onto the beginning of the cDNA, enabling padlock probe detection, rolling circle amplification, and fluorescent in situ sequencing. Overall, the disclosed method for in situ sequencing can be applicable for analyzing exogenously introduced transcripts (e.g., identifying and determining impact of a perturbation including a CRISPR perturbation or shRNA/siRNA/ASO perturbation), analyzing naturally occurring transcripts (e.g., measuring gene expression, detecting splicing events), and analyzing modified, naturally occurring transcripts (e.g., detecting mutations or gene edits).

Abstract: Embodiments of the disclosure include implementing a ML-enabled cellular disease model for validating an intervention, identifying patient populations that are likely responders to an intervention, and developing a therapeutic structure-activity relationship screen. To generate a cellular disease model, data is combined from human genetic cohorts, from the literature, and from general-purpose cellular or tissue-level genomic data to unravel the set of factors (e.g., genetic, environmental, cellular factors) that give rise to a particular disease. In vitro cells are engineered using the set of factors to generate training data for training machine learning models that are useful for implementing cellular disease models.

Abstract: Disclosed are compositions and methods for engineering muscle tissue such as cardiac muscle and skeletal muscle. Tissue engineering platforms use a substrate and a protein micropattern. The protein micropattern forms a plurality of protein lanes and at least one protein bridge that connects adjacent protein lanes having a connection angle is less than 90 degrees. Tissue engineering platforms can promote muscle cell alignment and be used for cell-based pharmacological studies. Also disclosed are degradable substrates for transferring a protein micropattern in the form of a plurality of protein lanes and at least one protein bridge that connects adjacent protein lanes having a connection angle is less than 90 degrees.