Changchun Huapu Biotechnology Co. Ltd.

Sbi Biotech Co., Ltd.

Liying Wang

Yongli Yu

Eiji Esashi

Ran Sun

Musheng Bao

Dali Hu

The inhibitory oligonucleotides (ODNs) strongly block NF-&#x3ba;B activation induced by TLR9 agonists and TLR7 agonists. The production of proinflammatory cytokines, such as interleukin-6 and tumor necrosis factor alpha, is inhibited by the inhibitory-ODNs. Interferon production from human PBMC induced by TLR9 agonist is prevented by the inhibitory-ODNs. These ODNs can be used as a remedy for the treatment of immune-mediated disorders such as rheumatoid arthritis, systemic lupus erythematosus (SLE), sepsis, multiple organ dysfunction syndromes.

Inhibitory oligonucleotide and use thereof

The inhibitory oligonucleotides (ODNs) which strongly block NF-&#x3ba;B activation induced by TLR9 agonists and TLR7 agonists are provided. The production of proinflammatory cytokines, such as interleukin-6 and tumor necrosis factor alpha, is inhibited by the inhibitory-ODNs. Interferon production from human PBMC induced by TLR9 agonist is prevented by the inhibitory-ODNs. These ODNs can be used as a remedy for the treatment of immune-mediated disorders such as rheumatoid arthritis, systemic lupus erythematosus (SLE), sepsis, multiple organ dysfunction syndromes.

An oligonucleotide with a nucleotide sequence of 5'-cctcctcctcctcctcctcctcct-3&#x2032; (SEQ ID NO: 1) inhibits proliferation of human PBMC activated by TLR9 agonist and interferon production from human PBMC induced by TLR9 agonist, HSV-1, flu virus and serum from SLE patients, and rescues the mice from cytokine-mediated lethal shock. This oligonucleotide can be used as a remedy for the treatment of systemic lupus erythematosus (SLE), sepsis, multiple organ dysfunction syndromes and other immune-mediated disorders.

Oligonucleotide and use thereof

The present invention provides an adjuvant, which includes at least one single strand deoxynucleotide containing a CpG dinucleotide. The single strand deoxynucleotide comprises one or more CpG dinucleotides. When used in combination with rabies vaccine, HBV vaccine or other vaccines, the adjuvant can significantly improve the immune effect of the vaccine.

CpG single strand deoxynucleotides for use as adjuvant

The present invention provides a series of artificial CpG-containing single-stranded oligodeoxynucleotides (ODNs), each of which is consisted of single-stranded oligodeoxynucleotide DNA molecule containing one or more CpG(s), wherein said ODNs can stimulate human peripheral blood mononuclear cell (PBMC) to produce antiviral substances. These ODNs can protect the cells against the attack from virus, wherein said virus is preferably selected from the group consisted of influenza virus and single-stranded positive strand RNA virus such as SARS virus, hepatitis C virus, dengue virus and Japanese encephalitis virus. Moreover, the antiviral use of artificial CpG ODNs and its use for treating and preventing viral infection are also provided.

Growing community of inventors

Changchun, China

Liying Wang