METHODS AND COMPOSITIONS FOR INTERNALLY CONTROLLED IN SITU ASSAYS

    公开(公告)号:US20250034624A1

    公开(公告)日:2025-01-30

    申请号:US18763973

    申请日:2024-07-03

    Abstract: The present disclosure relates in some aspects to methods for analyzing a target nucleic acid in a biological sample. In some aspects, the methods involve the use of a set of polynucleotides, including one or more polynucleotides (e.g., a detection padlock probe) for detecting a region of interest and one or more polynucleotides (e.g., a control padlock probe) as an internal control, for analyzing target nucleic acids. In some aspects, the presence, amount, and/or identity of a region of interest in a target nucleic acid is analyzed in situ. Also provided are polynucleotides, sets of polynucleotides, compositions, and kits for use in accordance with the methods.

    PROBES AND METHODS OF USING SAME
    3.
    发明申请

    公开(公告)号:US20210238662A1

    公开(公告)日:2021-08-05

    申请号:US17165808

    申请日:2021-02-02

    Abstract: Provided herein are methods for analyzing a target nucleic acid, comprising contacting a target nucleic acid with a first polynucleotide and a second polynucleotide, and optionally one or more other polynucelotides such as a splint and/or a primer, to form a hybridization complex. In some embodiments, the first polynucleotide and the second polynucleotide are ligated to form a circular polynucleotide hybridized to the target nucleic acid, e.g., using DNA-templated ligation reaction(s). The circular polynucleotide and/or a product thereof (e.g., an RCA product) can be analyzed to analyze the target nucleic acid or a sequence thereof.

    METHODS AND COMPOSITIONS FOR INTEGRATED IN SITU SPATIAL ASSAY

    公开(公告)号:US20250137040A1

    公开(公告)日:2025-05-01

    申请号:US18943775

    申请日:2024-11-11

    Abstract: In some embodiments, provided herein is an integrated assay of a biological sample comprising an in situ assay module and a spatial assay module. The in situ assay comprises analyzing binding between nucleic acid probes and a first analyte at a spatial location of the biological sample. In some embodiments, the method further comprises providing conditions to allow spatially barcoded capture agents to capture a second analyte for analysis in the spatial assay module.

    METHODS AND COMPOSITIONS FOR MODIFYING PRIMARY PROBES IN SITU

    公开(公告)号:US20220282316A1

    公开(公告)日:2022-09-08

    申请号:US17685033

    申请日:2022-03-02

    Abstract: The present disclosure relates in some aspects to methods for analyzing a target nucleic acid in a biological sample. In some aspects, the methods involve the use of a set of oligonucleotides, for example a set of two or more oligonucleotides, wherein one or more oligonucleotides comprises modified nucleotides, for assessing target nucleic acids. In some aspects, the presence, amount, and/or identity of a target nucleic acid is analyzed in situ. Also provided are oligonucleotides, sets of oligonucleotides, compositions, and kits for use in accordance with the methods.

    THREE-DIMENSIONAL SPATIAL TRANSCRIPTOMICS WITH SEQUENCING READOUT

    公开(公告)号:US20210277460A1

    公开(公告)日:2021-09-09

    申请号:US17192746

    申请日:2021-03-04

    Abstract: In some embodiments described herein are methods for three-dimensional analysis of a biological sample, comprising migrating a population of spatial probes into the biological sample in each of three dimensions, wherein each spatial probe comprises a targeting domain and a migration domain. Also provided are kits and compositions for use according to any of the methods described herein.

    MULTI-RESOLUTION IN SITU DECODING
    7.
    发明公开

    公开(公告)号:US20240331348A1

    公开(公告)日:2024-10-03

    申请号:US18737862

    申请日:2024-06-07

    CPC classification number: G06V10/60 G06T3/40 G06T7/70 G06V10/19 G06V20/693

    Abstract: Methods and systems for performing multi-resolution in situ decoding are described. The method may comprise, for example, acquiring at least one first image of a biological sample at a first optical resolution; identifying locations for a plurality of target analytes based on the at least one first image; acquiring at least one second image of the biological sample at a second optical resolution in at least one decoding cycle of a plurality of decoding cycles used for in situ decoding of the target analytes; and extracting signal intensity data for signals associated with all or a portion of the target analytes from the at least one second image based on the locations for the target analytes identified in the at least one first image. In some instances, the method may further comprise using the signal intensity data extracted from the at least one second image to decode the target analytes.

    SEQUENTIAL HYBRIDIZATION AND QUENCHING

    公开(公告)号:US20220282306A1

    公开(公告)日:2022-09-08

    申请号:US17683856

    申请日:2022-03-01

    Abstract: The present disclosure provides methods for detecting a nucleic acid molecule involving the use of a signal code sequence which corresponds to said nucleic acid molecule, comprising sequential hybridization of detectably labeled probes to allow detection of a signal code sequence. In particular, the present disclosure provides a method of sequential decoding comprising hybridization-directed quenching of detectable moieties that have already been imaged, allowing the newly added probe to be detected without the need to remove the previously imaged detectable moiety, thus providing an approach that reduces or eliminates the need for damaging probe stripping.

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