US4276282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interferon and preparations containing interferon
Assignee: Individual
•
Filing: 1979-01-22
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Granted: 1981-06-30
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Expires: 1999-01-22
Abstract
Abstract The present invention relates to processes for an easily applicable industrial production of interferon and the possibilities of the products for preventing and treating interferonsensitive diseases. The process easily produces a large amount of interferon and transplanting established human cells to other warm-blooded animals or inoculating the cells in a diffusion chamber and multiplying the cells therein while allowing the animals to supply the cells with their nutrient body fluids, then exposing in vivo or in vitro the resultant cells to the action of interferon inducer. The present invention is also based on the discovery that the interferon obtained by the present method is an effective and superior preparation for preventing and treating interferon-sensitive diseases.
Inventors
- 👤 Kaname Sugimoto
- 👤 Shokichi Yuen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:21
CPC Classifications
C; C12; C12N; C12N1/00; C07; C07K; C07K14/00; C07K14/435; C07K14/52; C07K14/555; A; A61; A61K; A61K38/00; C12R; C12R2001/00; C12R2001/91; Y; Y10; Y10S; Y10S435/00; Y10S435/811
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
72 words
In the process for producing human-specific interferon comprising cultivating established human cells, exposing the resultant cells to the action of an interferon inducer to induce the interferon, and collecting and purifying the interferon, the improvement whereby the quality and quantity of interferon is greatly increased, comprising, as said cultivating step, transplanting the established human cells into a non-human warm-blooded animal body, and wherein said exposing step is in vivo or in vitro.
Claim 2
Dependent Claim
72 words
In the process for producing human-specific interferon comprising cultivating established human cells, exposing the resultant cells to the action of an interferon inducer to induce the interferon, and collecting and purifying the interferon, the improvement whereby the quality and quantity of interferon is greatly increased, comprising, as said cultivating step, transplanting the established human cells into a non-human warm-blooded animal body, and wherein said exposing step is in vivo or in vitro.
Claim 3
Dependent Claim
120 words
In the process for producing human-specific interferon comprising cultivating established human cells, exposing the resultant cells to the action of an interferon inducer to induce the interferon, and collecting and purifying the interferon, the improvement whereby the quality and quantity of interferon is greatly increased, comprising, as said cultivating step, inoculating the established human cells onto a nutrient medium in a diffusion chamber having pores of about 10 -7 to 10 -5 m in diameter, placing the diffusion chamber in or on the body of a non-human warm-blooded animal such that the nutrient body fluids of the animal have access to the chamber, and multiplying the cells while allowing the animal to supply the cells with its nutrient body fluid.
Claim 4
Dependent Claim
120 words
In the process for producing human-specific interferon comprising cultivating established human cells, exposing the resultant cells to the action of an interferon inducer to induce the interferon, and collecting and purifying the interferon, the improvement whereby the quality and quantity of interferon is greatly increased, comprising, as said cultivating step, inoculating the established human cells onto a nutrient medium in a diffusion chamber having pores of about 10 -7 to 10 -5 m in diameter, placing the diffusion chamber in or on the body of a non-human warm-blooded animal such that the nutrient body fluids of the animal have access to the chamber, and multiplying the cells while allowing the animal to supply the cells with its nutrient body fluid.
Claim 5
Dependent Claim
16 words
A process as set forth in claims 1 or 2, wherein the established cells are leucocytes.
Claim 6
Dependent Claim
25 words
A process as set forth in claim 3, wherein the established leucocyte cells are Namalva cells, TALL-1 cells, BALL-1 cells, NALL-1 cells or JBL cells.
Claim 7
Dependent Claim
16 words
A process as set forth in claims 1 or 2, wherein the warm-blooded animal is mammalian.
Claim 8
Dependent Claim
21 words
A process as set forth in claims 1 or 2, wherein the human cells are multiplied for 1 to 20 weeks.
Claim 9
Dependent Claim
35 words
A process as set forth in claims 1 or 2, wherein the resultant cells are exposed to the action of interferon inducer in a concentration of about 10 5 to 10 8 cells per ml.
Claim 10
Dependent Claim
28 words
A process as set forth in claims 1 or 2, wherein the resultant cells are exposed to the action of interferon inducer at about 20° to 40° C.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-29 | 1984-12-29 | 1985-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-29 | 1988-12-29 | 1989-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-29 | 1992-12-29 | 1993-06-30 | $7700.00 | Window Closed / Lapsed |