Abstract:
A method for labelling a tissue section is provided. In certain embodiments, the method may comprise: (a) labeling a formalin-fixed paraffin embedded (FFPE) tissue section using a first set of labeling reagents that comprises a first primary antibody and a first labeled secondary antibody; (b) treating the labeled tissue with a protease, thereby digesting the first primary antibody and/or the first labeled secondary antibody and separating the label from the FFPE tissue section; (c) washing the tissue section to remove the separated label and the protease; and (c) labeling the FFPE tissue section using a second set of labeling reagents that comprises a second primary antibody and a second labeled secondary antibody. A kit for performing the method is also provided.
Abstract:
A method for labelling a tissue section is provided. In certain embodiments, the method may comprise: (a) labeling a formalin-fixed paraffin embedded (FFPE) tissue section using a first set of labeling reagents that comprises a first primary antibody and a first labeled secondary antibody; (b) treating the labeled tissue with a protease, thereby digesting the first primary antibody and/or the first labeled secondary antibody and separating the label from the FFPE tissue section; (c) washing the tissue section to remove the separated label and the protease; and (c) labeling the FFPE tissue section using a second set of labeling reagents that comprises a second primary antibody and a second labeled secondary antibody. A kit for performing the method is also provided.
Abstract:
Provided herein is a proximity assay that, in certain embodiments, involves: (a) hybridizing a first oligonucleotide and a second oligonucleotide with a target nucleic acid, wherein the first oligonucleotide comprises: i. a region that is complementary to a first sequence in the target nucleic acid and ii. a barcode sequence; and the second oligonucleotide comprises i. a region that is complementary to a second region in the target and ii. the complement of the barcode sequence; and (b) detecting hybridization between the barcode sequence and the complement of the barcode sequence, wherein hybridization between the barcode sequence and the complement of the barcode sequence indicates that the first and second target sequences are proximal to one another in the sample.