The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 26, 2024

Filed:

Jul. 20, 2023
Applicant:

Cugene Inc, Waltham, MA (US);

Inventors:

Yue-Sheng Li, Thousand Oaks, CA (US);

Lingyun Rui, Weston, MA (US);

Jing Xu, Waltham, MA (US);

Assignee:

Cugene Inc., Waltham, MA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07K 14/55 (2006.01); A61K 38/00 (2006.01);
U.S. Cl.
CPC ...
C07K 14/55 (2013.01); A61K 38/00 (2013.01); C07K 2319/01 (2013.01); C07K 2319/30 (2013.01); C07K 2319/31 (2013.01);
Abstract

The present invention relates to polypeptides which share primary sequence with human Interleukin 2 (IL-2), except for several amino acids that have been mutated. One panel of IL-2 variants comprise mutations with impressive manufacturability that preferentially promotes the proliferation, survival, activation and/or function of immunosuppressive regulatory T cells (Tregs) (Treg: CD4+CD25+FoxP3+) over effector T cells and Natural Killer Cells (NK). cells. Also includes therapeutic uses of such IL-2 selective agent, used alone, or in combination with immune modulating agents or disease-tissue targeting antibody, protein or peptide to treat Treg cell-deficiency, various autoimmune and inflammatory disorders, organ transplantation and graft-versus-host disease. In another aspect the present invention relates to pharmaceutical compositions comprising the polypeptides disclosed. Finally, the present invention relates to the therapeutic use of the polypeptides and pharmaceutical compositions disclosed due to their selective modulating effect of the immune system on diseases like autoimmune and inflammatory disorders.


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