IP Library Granted Patent US 12,409,196
Granted Patent B2
US 12,409,196 · App. 17/371,692 · Granted Sep 9, 2025

Composition for inducing proliferation or accumulation of regulatory T cells

Inventors: Kenya Honda (Tokyo, JP); Koji Atarashi (Tokyo, JP); Kikuji Itoh (Tokyo, JP); Takeshi Tanoue (Tokyo, JP)
Assignee: The University of Tokyo
A61K35/742A01K67/0275A61K9/0053A61K9/48A61K35/74A61K39/0008A61K39/08A61K39/39A61K45/00A61K45/06C12Q1/689G01N33/505A01K2267/0325A61K35/00A61K2039/52A61K2039/542A61K2039/55594A61K2039/57C12Q2600/158G01N2333/33G01N2500/10
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Quick Facts
Patent No.
US 12,409,196
App. No.
17/371,692
Granted
Sep 9, 2025
Kind
B2
Abstract

It was found that bacteria belonging to the genus Clostridium induce accumulation of regulatory T cells (Treg cells) in the colon. Moreover, the present inventors found that regulatory T cells (Treg cells) induced by from these bacteria suppressed proliferation of effector T-cells. From these findings, the present inventors found that the use of bacteria belonging to the genus Clostridium or a physiologically active substance derived therefrom made it possible to induce proliferation or accumulation of regulatory T cells (Treg cells), and further to suppress immune functions.

Claims (20)

1. A pharmaceutical composition, comprising six or more live bacterial strains belonging to Clostridium clusters IV and/or XIVa, wherein the six or more bacterial strains induce proliferation and/or accumulation of regulatory T cells, wherein at least one of the bacterial strains is a human commensal bacterial strain, and wherein the pharmaceutical composition is formulated for delivery to the intestine.

2. The pharmaceutical composition of claim 1 , wherein the pharmaceutical composition comprises seven or more bacterial strains.

3. The pharmaceutical composition of claim 1 , wherein the pharmaceutical composition comprises eight or more bacterial strains.

4. The pharmaceutical composition of claim 1 , wherein the pharmaceutical composition comprises nine or more bacterial strains.

5. The pharmaceutical composition of claim 1 , wherein the pharmaceutical composition comprises ten or more bacterial strains.

6. The pharmaceutical composition of claim 1 , wherein the pharmaceutical composition comprises eleven or more bacterial strains.

7. The pharmaceutical composition of claim 1 , wherein the pharmaceutical composition comprises twelve or more bacterial strains.

8. The pharmaceutical composition of claim 1 , wherein the pharmaceutical composition comprises thirteen or more bacterial strains.

9. The pharmaceutical composition of claim 1 , wherein the pharmaceutical composition comprises fourteen or more bacterial strains.

10. The pharmaceutical composition of claim 1 , wherein the pharmaceutical composition comprises fifteen or more bacterial strains.

11. The pharmaceutical composition of claim 1 , wherein the pharmaceutical composition further comprises one or more bacterial strains belonging to a Clostridium cluster other than Clostridium cluster IV or cluster XIVa.

12. The pharmaceutical composition of claim 1 , wherein the pharmaceutical composition is formulated for oral administration.

13. The pharmaceutical composition of claim 1 , wherein the pharmaceutical composition further comprises a pharmacologically acceptable excipient.

14. The pharmaceutical composition of claim 1 , wherein the pharmaceutical composition is in the form of a capsule.

15. The pharmaceutical composition of claim 1 , wherein the pharmaceutical composition further comprises a pH sensitive composition comprising one or more enteric polymers.

16. A method of treating a human subject having an infectious disease, an autoimmune disease or an allergic disease, the method comprising administering the pharmaceutical composition of claim 1 .

17. The method of claim 16 , wherein the human subject has an autoimmune disease.

18. The method of claim 16 , wherein the autoimmune disease is organ transplant rejection, inflammatory bowel disease (IBD), ulcerative colitis, Crohn's disease, sprue, rheumatoid arthritis, Type 1 diabetes, graft versus host disease, or multiple sclerosis.

19. The method of claim 16 , wherein the subject has an infectious disease, and wherein the infectious disease is Clostridium difficile infection.

20. The method of claim 16 , wherein the subject has an allergic disease, optionally wherein the allergic disease is food allergy.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 6, 2023
From: HONDA, KENYA; ATARASHI, KOJI; ITOH, KIKUJI; TANOUE, TAKESHI
To: THE UNIVERSITY OF TOKYO
Reel/Frame 063242/0285 →
Priority Claims (2)
JP 2010-129134 · Jun 4, 2010 · national
WO PCT/JP2010/071746 · Dec 3, 2010 · international
Continuity (10)
Continuation 16780116 · Feb 3, 2020
Continuation 16425030 · May 29, 2019
Continuation 16389380 · Apr 19, 2019
Continuation 16171558 · Oct 26, 2018
Continuation 16117054 · Aug 30, 2018
Continuation 15730203 · Oct 11, 2017
Continuation 15216015 · Jul 21, 2016
Continuation 14492850 · Sep 22, 2014
Continuation 13701467
Related Publication 20220096568A1 · Mar 31, 2022
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