Reprogramming cells to a less differentiated state

• US 9,562,218 B2
• Filed: 06/09/2016
• Issued: 02/07/2017
• Est. Priority Date: 12/05/2011
• Status: Active Grant

• Current Assignee: Factor Bioscience Inc
• Original Assignee: Factor Bioscience Inc
• Inventors: Angel, Matthew, Rohde, Christopher
• Primary Examiner(s): Noble, Marcia S
• Application Number:
  US15/178,190
• Publication Number:
  US 20160281059A1
• Time in Patent Office: 243 Days
• US Class Current: 1/1
• CPC Class Codes: A61P 17/00 Drugs for dermatological disorders
• CPC Class Codes: A61P 21/00 Drugs for disorders of the muscular or neuromuscular system
• CPC Class Codes: A61P 25/02 for peripheral neuropathies
• CPC Class Codes: A61P 25/16 Anti-Parkinson drugs
• CPC Class Codes: A61P 25/28 for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
• CPC Class Codes: A61P 27/02 Ophthalmic agents
• CPC Class Codes: A61P 3/10 for hyperglycaemia, e.g. antidiabetics
• CPC Class Codes: A61P 31/18 for HIV
• CPC Class Codes: A61P 35/00 Antineoplastic agents
• CPC Class Codes: A61P 37/04 Immunostimulants
• CPC Class Codes: A61P 7/06 Antianaemics
• CPC Class Codes: A61P 9/10 for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
• CPC Class Codes: C12N 15/85 for animal cells
• CPC Class Codes: C12N 2500/25 Insulin-transferrin; Insulin-transferrin-selenium
• CPC Class Codes: C12N 2500/33 other than alpha-amino carboxylic acids, e.g. beta-amino acids, taurine
• CPC Class Codes: C12N 2500/36 Lipids
• CPC Class Codes: C12N 2500/84 from mammals
• CPC Class Codes: C12N 2501/602 Sox-2
• CPC Class Codes: C12N 2501/603 Oct-3/4
• CPC Class Codes: C12N 2501/604 Klf-4
• CPC Class Codes: C12N 2501/606 : c-Myc
• CPC Class Codes: C12N 2501/608 : Lin28
• CPC Class Codes: C12N 2501/998 : Proteins not provided for elsewhere
• CPC Class Codes: C12N 2506/09 : from epidermal cells, from skin cells, from oral mucosa cells
• CPC Class Codes: C12N 2506/45 : from artificially induced pluripotent stem cells
• CPC Class Codes: C12N 5/0018 : Culture media for cell or tissue culture media for specific animal cell type C12N5/06
• CPC Class Codes: C12N 5/0625 : Epidermal cells, skin cells; Cells of the oral mucosa
• CPC Class Codes: C12N 5/0647 : Haematopoietic stem cells; Uncommitted or multipotent progenitors
• CPC Class Codes: C12N 5/0656 : Adult fibroblasts
• CPC Class Codes: C12N 5/0657 : Cardiomyocytes; Heart cells
• CPC Class Codes: C12N 5/0676 : Pancreatic cells
• CPC Class Codes: C12N 5/0695 : Stem cells; Progenitor cells; Precursor cells
• CPC Class Codes: C12N 5/0696 : Artificially induced pluripotent stem cells, e.g. iPS

Abstract

The present invention relates in part to methods for producing tissue-specific cells from patient samples, and to tissue-specific cells produced using these methods. Methods for reprogramming cells using RNA are disclosed. Therapeutics comprising cells produced using these methods are also disclosed.

Claims

1. A method for reprogramming a cell to a less differentiated state comprising:

(a) providing a non-pluripotent cell;

(b) culturing the cell in a medium containing albumin and ingredients that support reprogramming of the cell to a less differentiated state, wherein the albumin is treated with an ion-exchange resin or charcoal;

(c) transfecting the cell with a synthetic RNA molecule, wherein the RNA molecule encoding one or more reprogramming factor(s) selected from the group consisting of Oct4 protein, Sox2 protein, Klf4 protein, c-Myc protein, I-Myc protein, Tert protein, Nanog protein, and Lin28 protein,

wherein the transfecting results in the cell expressing the one or more reprogramming factor(s) which reprograms the cell to a less differentiated state.

2. The method of claim 1, wherein the non-pluripotent cell is derived from a biopsy.

3. The method of claim 1, wherein the non-pluripotent cell is harvested from a human subject.

4. The method of claim 2, wherein the non-pluripotent cell is harvested from a dermal punch biopsy sample.

5. The method of claim 1, wherein the non-pluripotent cell is a skin cell.

6. The method of claim 1, wherein the albumin is treated with sodium octanoate.

7. The method of claim 1, wherein the albumin is brought to a temperature of at least 40°

C.

8. The method of claim 1, wherein the albumin is recombinant.

9. The method of claim 1, further comprising contacting the cell with at least one member of the group:

poly-L-lysine, poly-L-ornithine, RGD peptide, fibronectin, vitronectin, collagen, and laminin.

10. The method of claim 1, wherein the synthetic RNA molecule contains at least one of a pseudouridine or a 5-methylcytidine residue.