Regeneron Pharmaceuticals, Inc.

Regeneron Phramaceuticals, Inc.

Xiping Cheng

Jesper Gromada

Aris I Baras

Frederick E Dewey

Noura S Abul-Husn

Yurong Xin

Omri Gottesman

Alexander Li

Alan R Shuldiner

Claudia Schurmann

Tanya Teslovich Dostal

Gregory Hinkle

Stuart Milstein

Suzanne Hartford

Frederic Tremblay

Evangelos Pefanis

Haruka Okamoto

Mark W Sleeman

Jose F Rojas

Alan Shuldiner

The invention relates to double-stranded ribonucleic acid (dsRNA) compositions targeting the HSD17B 13 gene, as well as methods of inhibiting expression of HSD17B13, and methods of treating subjects that would benefit from reduction in expression of HSD17B13, such as subjects having a HSD17B13-associated disease, disorder, or condition, using such dsRNA compositions.

17ß-hydroxysteroid dehydrogenase type 13 (HSD17B13) iRNA compositions and methods of use thereof

The disclosure provides methods of identifying a human subject as a candidate for treating or inhibiting a liver disease by inhibiting HSD17B13. The disclosure also provides methods of treating a subject who is PNPLA3 Ile148Met+ by administering an inhibitor of HSD17B13. The disclosure also provides method of detecting a PNPLA3 Ile148Met variant and functional HSD17B13 in a subject. The disclosure also provides method of identifying a subject having a protective effect against liver disease. The disclosure also provides inhibitors of HSD17B13 for use in the treatment of a liver disease.

Inhibition of HSD17B13 in the treatment of liver disease in patients expressing the PNPLA3 I148M variation

Non-human animal genomes, non-human animal cells, and non-human animals comprising a humanized PNPLA3 locus and methods of making and using such non-human animal genomes, non-human animal cells, and non-human animals are provided. Non-human animal cells or non-human animals comprising a humanized PNPLA3 locus express a human PNPLA3 protein or a chimeric PNPLA3 protein, fragments of which are from human PNPLA3. Methods are provided for using such non-human animals comprising a humanized PNPLA3 locus to assess in vivo efficacy of human-PNPLA3-targeting reagents such as nuclease agents designed to target human PNPLA3.

Genetically modified mouse with a humanized PNPLA3 gene and methods of use

Provided herein are methods of treating a subject with hyperammonemia or a urea cycle disorder. The methods comprise administering to a subject in need thereof a therapeutic amount of a glucagon signaling pathway inhibitor, such that ammonia levels are lowered or that amino acid metabolism enzymes are down-regulated, or a condition or disease characterized by hyperammonemia is mediated, or at least one symptom or complication associated with the condition or disease is alleviated or reduced in severity. The glucagon signaling pathway inhibitor can be a small molecule inhibitor of the signaling pathway, an antisense inhibitor of the signaling pathway, shRNA, siRNA, a GCG neutralizing monoclonal antibody, a GCGR antagonist, a peptide inhibitor of the signaling pathway, a DARPin, a Spiegelmer, an aptamer, engineered Fn type-III domains, etc. The therapeutic methods are useful for treating a human suffering from hyperammonemia or a urea cycle disorder.

Methods of treating urea cycle disorders by interfering with glucagon receptor signaling

Provided are compositions related to HSD17B13 variants, including nucleic acid molecules and polypeptides related to variants of HSD17B13, and cells comprising those nucleic acid molecules and polypeptides. Also provided are methods related to HSD17B3 variants. Such methods include methods for detecting the presence of the HSD17B13 rs72613567 variant in a biological sample comprising genomic DNA, for detecting the presence or levels of any one of variant HSD17B13 Transcripts C, D, E, F, G, and H, and particularly D, in a biological sample comprising mRNA or cDNA, or for detecting the presence or levels of any one of variant HSD17B13 protein Isoforms C, D, E, F, G, or H, and particularly D, in a biological sample comprising protein. Also provided are methods for determining a subject's susceptibility to developing a liver disease or of diagnosing a subject with liver disease.

HSD17B13 variants and uses thereof

Provided are compositions related to HSD17B13 variants, including nucleic acid molecules and polypeptides related to variants of HSD17B13, and cells comprising those nucleic acid molecules and polypeptides. Also provided are methods related to HSD17B13 variants. Such methods include methods for detecting the presence of the HSD17B13 rs72613567 variant in a biological sample comprising genomic DNA, for detecting the presence or levels of any one of variant HSD17B13 Transcripts C, D, E, F, G, and H, and particularly D, in a biological sample comprising mRNA or cDNA, or for detecting the presence or levels of any one of variant HSD17B13 protein Isoforms C, D, E, F, G, or H, and particularly D, in a biological sample comprising protein. Also provided are methods for determining a subject's susceptibility to developing a liver disease or of diagnosing a subject with liver disease.

Provided are compositions related to HSD17B13 variants, including isolated nucleic acids and proteins related to variants of HSD17B13, and cells comprising those nucleic acids and proteins. Also provided are methods related to HSD17B13 variants. Such methods include methods for modifying a cell through use of any combination of nuclease agents, exogenous donor sequences, transcriptional activators, transcriptional repressors, and expression vectors for expressing a recombinant HSD17B13 gene or a nucleic acid encoding an HSD17B13 protein. Also provided are therapeutic and prophylactic methods for treating a subject having or at risk of developing chronic liver disease.

The invention relates to double-stranded ribonucleic acid (dsRNA) compositions targeting the HSD17B13 gene, as well as methods of inhibiting expression of HSD17B13, and methods of treating subjects that would benefit from reduction in expression of HSD17B13, such as subjects having a HSD17B13-associated disease, disorder, or condition, using such dsRNA compositions.

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Northvale, NJ, United States of America

Xiping Cheng