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US 2021/0230675 A1Published application
COMPOSITIONS AND METHODS FOR DETECTING ANTIBIOTIC RESPONSIVE mRNA EXPRESSION SIGNATURES AND USES THEREOF
AssigneesThe Broad Institute, Inc., The General Hospital Corporation
InventorsDeborah Hung, Roby Bhattacharyya, Jonathan Livny, Peijun Ma
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Abstract
The present disclosure relates to compositions, methods, and kits for rapid phenotypic detection of antibiotic resistance/susceptibility.
Claims20
A method, comprising:
- obtaining a sample including one or more bacterial cells, wherein the sample is obtained from a patient or an environmental source;
- processing the sample to enrich the one or more bacterial cells;
- contacting the sample with one or more antibiotic compounds;
- lysing the sample to release messenger ribonucleic acid (mRNA) from the one or more bacterial cells;
- hybridizing the released mRNA to at least one set of two nucleic acid probes, wherein each nucleic acid probe includes a unique barcode or tag;
- detecting the hybridized nucleic acid probes;
- identifying one or more genetic resistance determinants;
- and
- determining the identity of the one or more bacterial cells and the antibiotic susceptibility of each of the identified one or more bacterial cells.
6 more elements
A composition comprising:
- a set of nucleic acid probes corresponding to the probes listed in Table 3 and Table 4;
- a set of nucleic acid probes corresponding to the probes listed in Table 5 and Table 6;
- a set of nucleic acid probes that includes a first probe comprising a sequence selected from the group consisting of SEQ ID NOs:
- 1877-2762 and a second probe comprising a sequence selected from the group consisting of SEQ ID NOs:
- 2763-3648, optionally wherein the first probe comprises a sequence of SED ID NO:
- (1877+n) and the second probe comprises a sequence of SEQ ID NO:
- (2763+n), wherein n=an integer ranging from 0 to 885, optionally wherein one or both of the first and second probes further comprises a tag sequence;
- a kit comprising a set of nucleic acid probes corresponding to the probes listed in Table 3 and Table 4, and instructions for its use;
- a kit comprising a set of nucleic acid probes corresponding to the probes listed in Table 5 and Table 6, and instructions for its use;
- or
- a kit comprising a set of nucleic acid probes that includes a first probe comprising a sequence selected from the group consisting of SEQ ID NOs:
- 1877-2762 and a second probe comprising a sequence selected from the group consisting of SEQ ID NOs:
- 2763-3648, and instructions for its use, optionally wherein the first probe comprises a sequence of SED ID NO:
- (1877+n) and the second probe comprises a sequence of SEQ ID NO:
- (2763+n), wherein n=an integer ranging from 0 to 885, optionally wherein one or both of the first and second probes further comprises a tag sequence.
12 more elements
11-12. (canceled)
A method of treating a patient, comprising:
- obtaining a sample including one or more bacterial cells, wherein the sample is obtained from a patient or an environmental source;
- processing the sample to enrich the one or more bacterial cells;
- contacting the sample with one or more antibiotic compounds;
- lysing the sample to release messenger ribonucleic acid (mRNA) from the one or more bacterial cells;
- hybridizing the released mRNA to at least one set of two nucleic acid probes, wherein each nucleic acid probe includes a unique barcode or tag;
- detecting the hybridized nucleic acid probes;
- identifying one or more genetic resistance determinants;
- determining the identity of the one or more bacterial cells and the antibiotic susceptibility of each of the identified one or more bacterial cells;
- and
- administering to the patient an appropriate antibiotic based on the determination of the identity and the antibiotic susceptibility of the one or more bacterial cells.
7 more elements
21-23. (canceled)
Dependencies are inferred from the claim text.