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EP0307097A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Water-insolubilized cytokines

Assignee: Takeda Pharmaceutical Co Ltd
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Filing: 1988-08-17
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Granted: —
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Expires: 2008-08-17
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Abstract

Abstract Cytokines are water-insolubilized by acting a physiologically adaptable protein or high molecular organic acid on a cytokine, and thus obtained water-insolubilized cytokines retains physiological activity, and therefore, the water-insolubilized cytokines are useful as sustained release injections.

Inventors

  • 👤 Yasushi Mikura
  • 👤 Hisayoshi Shimizu
  • 👤 Hajime Toguchi
  • 👤 Jun Sato

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 16:03
CPC Classifications
A; A61; A61K; A61K38/00; A61K38/16; A61K38/17; A61K38/19; A61K38/21; A61K38/212; A61K38/20; A61K38/2013; A61K38/217; A61K47/00; A61K47/30; A61K47/36; A61K47/42; A61K9/00; A61K9/14; A61K9/16; A61K9/1605; A61K9/1629; A61K9/1641; A61K9/1647

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 47 words
A method for producing a physiological activity-­retaining and water-insolubilized form of a cytokine, which comprises acting physiologically adaptable protein or a physiologically adaptable high molecular organic acid having a molecular weight of not less than 5,000 or a salt thereof on a cytokine in an aqueous medium.
Claim 2
Independent Claim 47 words
A method for producing a physiological activity-­retaining and water-insolubilized form of a cytokine, which comprises acting physiologically adaptable protein or a physiologically adaptable high molecular organic acid having a molecular weight of not less than 5,000 or a salt thereof on a cytokine in an aqueous medium.
Claim 3
Dependent Claim 22 words
A method as claimed in Claim 1, wherein a physio­logically adaptable protein is acted on a cytokine in water under physical stimulation.
Claim 4
Dependent Claim 35 words
A method as claimed in Claim 1, wherein a physio­logically adaptable high molecular organic acid having a molecular weight of not less than 5000 or a salt thereof is acted on a cytokine in water.
Claim 5
Dependent Claim 25 words
A method as claimed in Claim 1, wherein a physio­logically adaptable protein is acted on a cytokine in the coexistence of a water-soluble organic solvent.
Claim 6
Dependent Claim 12 words
A method as claimed in Claim 1, wherein the cytokin is water-soluble.
Claim 7
Dependent Claim 12 words
A method as claimed in Claim 1, wherein the cytokine is lymphokine.
Claim 8
Dependent Claim 12 words
A method as claimed in Claim 6, wherein the lymphokine is interleukin-2.
Claim 9
Dependent Claim 12 words
A method as claimed in Claim 6, wherein the lymphokine is interferon.
Claim 10
Dependent Claim 11 words
A method as claimed in Claim 8, wherein interferon is interferon-α.
Claim 11
Dependent Claim 11 words
A method as claimed in Claim 8, wherein interferon is interferon-γ.

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