Method of treating lysosomal storage diseases using nucleases and a transgene

• US 9,877,988 B2
• Filed: 03/15/2013
• Issued: 01/30/2018
• Est. Priority Date: 07/11/2012
• Status: Active Grant

• Current Assignee: Sangamo Therapeutics, Inc.
• Original Assignee: Sangamo Therapeutics, Inc.
• Inventors: Rebar, Edward J.
• Primary Examiner(s): WILSON, MICHAEL C
• Application Number:
  US13/839,336
• Publication Number:
  US 20140017212A1
• Time in Patent Office: 1,782 Days
• Field of Search: 435325, 435455, 424 9321, 424 932, 514 44, 800 8, 800 18, 800 21
• CPC Class Codes: A61K 35/28 Bone marrow; Haematopoietic stem cells; Mesenchymal stem cells of any origin, e.g. adipose-derived stem cells
• CPC Class Codes: A61K 38/46 Hydrolases (3)
• CPC Class Codes: A61K 38/465 acting on ester bonds (3.1), e.g. lipases, ribonucleases
• CPC Class Codes: A61K 48/00 Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy
• CPC Class Codes: A61K 48/005 characterised by an aspect of the 'active' part of the composition delivered, i.e. the nucleic acid delivered
• CPC Class Codes: A61P 3/00 Drugs for disorders of the metabolism of the blood or the extracellular fluid A61P7/00
• CPC Class Codes: A61P 43/00 Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
• CPC Class Codes: C07K 2319/81 containing a Zn-finger domain for DNA binding
• CPC Class Codes: C12N 15/8645 Adeno-associated virus
• CPC Class Codes: C12N 15/907 in mammalian cells
• CPC Class Codes: C12N 9/22 Ribonucleases RNAses, DNAses catalytic nucleic acids C12N15/113

Abstract

Nucleases and methods of using these nucleases for inserting a sequence encoding a therapeutic protein such as an enzyme into a cell, thereby providing proteins or cell therapeutics for treatment and/or prevention of a lysosomal storage disease.

Claims

1. A method for expressing and secreting exogenous glucocerbrosidase (GBA), α

-galactosidase A (GLA), iduronate sulftase (IDS), or iduronidase (IDUA) protein in a liver cell in a mouse or human with a deficient GLA, GBA, IDS, or IDUA gene, the method comprising;

(i) intravenously injecting one or more adeno-associated viral (AAV) vectors encoding a pair of nucleases into the mouse or human, wherein the nucleases cleave an endogenous albumin gene in the liver cell; and

(ii) intravenously injecting an AAV vector comprising a donor sequence comprising a transgene encoding;

(a) an exogenous GBA protein into the mouse or human with the deficient GBA gene;

(b) an exogenous GLA protein into the mouse or human with the deficient GLA gene;

(c) an exogenous IDS protein into the mouse or human with the deficient IDS gene;

or

(d) an exogenous IDUA protein into the mouse or human with the deficient IDUA gene, and

wherein the transgene is flanked by sequences having homology with the endogenous albumin gene,

such that the transgene is integrated into the endogenous albumin gene in the liver cell, and the liver cell expresses and secretes the exogenous GBA, GLA, IDS, or IDUA protein.

2. The method of claim 1, wherein expression of the transgene is driven by the endogenous albumin promoter.

3. A method of treating a mouse or human with Gaucher'"'"'s, Fabry'"'"'s, Hunter'"'"'s or Hurler'"'"'s disease, the method comprising:

expressing and secreting exogenous GBA protein in a liver cell in the mouse or human with Gaucher'"'"'s disease,

expressing and secreting exogenous GLA protein in a liver cell in the mouse or human with Fabry'"'"'s disease,

expressing and secreting exogenous IDS protein in a liver cell in the mouse or human with Hunter'"'"'s/MPS II disease, or

expressing and secreting exogenous IDUA protein in a liver cell in the mouse or human with Hurler'"'"'s/MPS I disease

according to the method of claim 1 such that therapeutic levels of the protein are obtained in the serum of the mouse or human.