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Title:
COMBINATION USE OF NOVEL LACTOBACILLUS PLANTARUM STRAIN AND STRAIN-DERIVED POLYSACCHARIDE FOR PREVENTING OR TREATING TUMORS
Document Type and Number:
WIPO Patent Application WO/2023/282675
Kind Code:
A1
Abstract:
The present invention relates to a combination use of a novel Lactobacillus plantarum IMB19 strain and/or polysaccharides derived from the strain with an anticancer drug for preventing or treating tumors. The novel Lactobacillus plantarum IMB19 strain and polysaccharides derived from the strain of the present invention exhibit an excellent ability to stimulate CD8+T cell activity and exhibit excellent Treg cell inhibitory activity, and stimulate and improve antitumor immune response through various mechanisms such as increased macrophage infiltration in CPS tumors and differentiation and reprogramming of macrophages into an inflammatory phenotype (M1). Furthermore, the strain and the polysaccharides may significantly increase antitumor immune response when administered in combination with an anticancer drug, particularly an immuno-anticancer drug such as a PD-1 or PD-L1 inhibitor (e.g., a PD-1 antibody, a PD-L1 antibody, or the like), and exhibit a remarkable tumor growth suppression effect compared to the case of using the anticancer drug alone. Therefore, the present invention can be effectively used to prevent, relieve, or treat tumors through administration in combination with various anticancer drugs.

Inventors:
IM SIN-HYEOG (KR)
SHARMA GARIMA (KR)
SHARMA AMIT KUMAR (KR)
PARK SUNHEE (KR)
Application Number:
PCT/KR2022/009884
Publication Date:
January 12, 2023
Filing Date:
July 07, 2022
Export Citation:
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Assignee:
IMMUNOBIOME INC (KR)
POSTECH RES & BUSINESS DEV FOUND (KR)
International Classes:
A61K35/747; A61K31/715; A61K45/06; A61P35/00
Foreign References:
KR20210003432A2021-01-12
KR20210003433A2021-01-12
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Attorney, Agent or Firm:
LEE, Cheo Young et al. (KR)
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