# US 9,434,923 B2 · Preparation of parental cell bank from foetal tissue

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- Number: US 9,434,923 B2
- Document ID: US9434923B2
- Status: Granted
- Kind: B2
- Application number: 14/620,321
- Filed: 2015-02-12
- Published: 2015-06-04
- Granted: 2016-09-06
- Earliest claimed: 2011-07-11
- Assignees: Centre Hospitalier Universitaire Vaudois (Chuv)
- Applicants: Centre Hospitalier Universitaire Vaudois (Chuv)
- Inventors: Lee Ann Laurent-Applegate
- Web page: https://patentgrep.com/patent/US9434923B2

## CPC

- C12N 5/0655: {Chondrocytes; Cartilage}
- A61K 35/32: Bones; Osteocytes; Osteoblasts; Tendons; Tenocytes; Teeth; Odontoblasts; Cartilage; Chondrocytes; Synovial membrane
- A61K 35/33: Fibroblasts
- A61P 17/02: for treating wounds, ulcers, burns, scars, keloids, or the like
- A61P 19/04: for non-specific disorders of the connective tissue
- A61P 19/08: for bone diseases, e.g. rachitism, Paget's disease
- C12N 5/0603: {Embryonic cells (production of embryos, nuclear transfer A01K67/027); Embryoid bodies}
- C12N 5/066: {Tenocytes; Tendons, Ligaments}
- G01N 33/5008: {for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics}
- G01N 2500/10: involving cells
- C12N: MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA (microbiological testing media C12Q1/00)
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61P: SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)

## Abstract

The present invention relates to methods of in vitro preparation of a parental cell bank (PCB) from foetal tissue consisting of foetal epiphyseal tissue, foetal Achilles tendon tissue and foetal skin tissue, using a rapid mechanical primary cell culture selection of cell type to be used in methods for wound and tissue repair.

## Claims

### Claim 1

A scaffold comprising of a biocompatible, non-living material having an interstitial space inoculated with a foetal epiphyseal chondrocyte (FEC) cell belonging to a cell line having the designation FE002-Cart and deposited under accession number ECACC 12070303-FE002-Cart.

### Claim 2

A scaffold comprising of a biocompatible, non-living material having an interstitial space inoculated with a foetal Achilles tenocyte cell belonging to a cell line having the designation FE002-Ten and deposited under accession number ECACC 12070302-FE002-Ten.

### Claim 3

A scaffold comprising of a biocompatible, non-living material having an interstitial space inoculated with a foetal skin fibroblast cell belonging to a cell line having the designation FE002-SK2 and deposited under accession number ECACC 12070301-SK2.

### Claim 4 (depends on 1)

A method of producing new cartilage tissue and/or three dimensional constructs, the method comprising culturing the FEC cell in the scaffold of claim 1.

### Claim 5 (depends on 2)

A method of producing new tendon tissue and/or three dimensional constructs, the method comprising culturing the foetal Achilles tenocyte cell in the scaffold of claim 2.

### Claim 6 (depends on 3)

A method of producing new skin tissue and/or three dimensional constructs, the method comprising culturing the foetal skin fibroblast cell in the scaffold of claim 3.

### Claim 7 (depends on 1)

A method for repair and regeneration of osteochondral tissue and musculoskeletal tissue, the method comprising administering the scaffold of claim 1 to a subject in need thereof.

### Claim 8 (depends on 2)

A method for repair and regeneration of tendon tissue and musculoskeletal tissue, the method comprising administering the scaffold of claim 2 to a subject in need thereof.

### Claim 9 (depends on 3)

A method for repair and regeneration of skin tissue and for treating burns, wounds and fibrotic conditions, the method comprising administering the scaffold of claim 3 to a subject in need thereof.

### Claim 10 (depends on 1)

A method for treating osteochondral diseases or defects, arthritis and musculoskeletal diseases, the method comprising administering the scaffold of claim 1 to a subject in need thereof.

### Claim 11 (depends on 2)

A method for treating musculoskeletal diseases and tendonopathies, the method comprising administering the scaffold of claim 2 to a subject in need thereof.

### Claim 12 (depends on 3)

A method for treating skin diseases, the method comprising administering the scaffold of claim 3 to a subject in need thereof.

### Claim 13 (depends on 1)

A screening method for development of a therapeutic agent for the treatment of arthritic, osteochondral detects or musculoskeletal tissue injury, the method comprising exposing the scaffold of claim 1 to the therapeutic agent.

### Claim 14 (depends on 2)

A screening method for development of a therapeutic agent for the treatment of cartilage, tendon, or musculoskeletal tissue injury, the method comprising exposing the scaffold of claim 2 to the therapeutic agent.

### Claim 15 (depends on 3)

A screening method for development of a therapeutic agent for the treatment of skin injury, the method comprising exposing the scaffold of claim 3 to the therapeutic agent.

### Claim 16 (depends on 1)

The scaffold of claim 1, wherein the scaffold is:
(a) a three dimensional matrix composed of one or materials selected from the group consisting of collagen, polylactic acid, polyglycolic acid, polyethylene glycol, chitosan, and elastin; or
(b) a hydrogel composed of one or more materials selected from the group consisting of hyaluronic acid, silicone, and chitosan.

### Claim 17 (depends on 2)

The scaffold of claim 2, wherein the scaffold is:
(a) a three dimensional matrix composed of one or materials selected from the group consisting of collagen, polylactic acid, polyglycolic acid, polyethylene glycol, chitosan, and elastin; or
(b) a hydrogel composed of one or more materials selected from the group consisting of hyaluronic acid, silicone, and chitosan.

### Claim 18 (depends on 3)

The scaffold of claim 3, wherein the scaffold is:
(a) a three dimensional matrix composed of one or materials selected from the group consisting of collagen, polylactic acid, polyglycolic acid, polyethylene glycol, chitosan, and elastin; or
(b) a hydrogel composed of one or more materials selected from the group consisting of hyaluronic acid, silicone, and chitosan.
