← Back to Patent Explorer
EP0161640A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Encapsulated mouse cells transformed with avian retrovirus-bovine growth hormone DNA, and a method of administering BGH in vivo

Assignee: Merck and Co Inc
•
Filing: 1985-05-10
•
Granted: —
•
Expires: 2005-05-10
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Recombinant DNA constructs having an avian retroviral long terminal repeat (LTR) ligated to the bovine growth hormone gene, were co-transformed into a mammalian cell (mouse) culture in order to obtain a stable cell culture secreting large amounts of bovine growth hormone. The transformed mouse cells were encapsulated in hollow fibers and implanted into animals, thereby producing circulating bovine growth hormone.

Inventors

  • 👤 John J. Kopchick
  • 👤 Frederick C. Leung
  • 👤 Thomas J. Livelli
  • 👤 Richard H. Malavarca

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 10:56
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0087; A61K9/0092; A01; A01K; A01K67/00; A01K67/027; A01K67/0271; A61K38/00; A61K38/16; A61K38/17; A61K38/22; A61K38/27; A61K9/0012; A61K9/0019; A61K9/0024; C; C07; C07K; C07K14/00; C07K14/435; C07K14/575; C07K14/61; C12; C12N; C12N11/00; C12N11/02; C12N11/04; A61K48/00

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 32 words
The method for increasing milk production in cows by in vivo implantation in said cows of an effective amount of the encapsulated cell line L-BGH-4-3, ATCC CRL 8537 or L-BGH-4-13, ATCC CRL-8536.
Claim 2
Independent Claim 32 words
The method for increasing milk production in cows by in vivo implantation in said cows of an effective amount of the encapsulated cell line L-BGH-4-3, ATCC CRL 8537 or L-BGH-4-13, ATCC CRL-8536.
Claim 3
Independent Claim 29 words
The method for increasing animal growth by implantation in vivo in said animals an effective amount of the encapsulated cell line L-BGH-4-3, ATCC CRL 8537 or L-BGH-4-13, ATCC CRL-8536.
Claim 4
Independent Claim 29 words
The method for increasing animal growth by implantation in vivo in said animals an effective amount of the encapsulated cell line L-BGH-4-3, ATCC CRL 8537 or L-BGH-4-13, ATCC CRL-8536.
Claim 5
Dependent Claim 16 words
The methods of Claims 1 or 2 in which the encapsulated cell line is implanted subcutaneously.
Claim 6
Dependent Claim 45 words
A hollow fiber, about 10 mm long polyvinyl chloride-acrylic copolymer, having about a 1100 µm internal diameter, containing a recombinant mouse cell suspension capable of producing bovine growth hormone in an amount sufficient to stimulate animal growth or milk production when implanted in an animal.
Claim 7
Dependent Claim 45 words
A hollow fiber, about 10 mm long polyvinyl chloride-acrylic copolymer, having about a 1100 µm internal diameter, containing a recombinant mouse cell suspension capable of producing bovine growth hormone in an amount sufficient to stimulate animal growth or milk production when implanted in an animal.
Claim 8
Dependent Claim 64 words
A hollow fiber, about 10 mm long, polyvinylchloride-acrylic copolymer, having about a 1100 U m internal diameter, containing a cell suspension which has been previously transfected with biologically active DNA, said cells having been selected for production and secretion of the corresponding protein product, the cell suspension thusly being capable of producing the protein in a biologically active amount when implanted in an animal.
Claim 9
Dependent Claim 64 words
A hollow fiber, about 10 mm long, polyvinylchloride-acrylic copolymer, having about a 1100 U m internal diameter, containing a cell suspension which has been previously transfected with biologically active DNA, said cells having been selected for production and secretion of the corresponding protein product, the cell suspension thusly being capable of producing the protein in a biologically active amount when implanted in an animal.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag