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The T helper cells (Tₕ cells), also known as CD4⁺ cells, are a type of T cell that play an important role in the immune system, particularly in the adaptive immune system. They help the activity of other immune cells by releasing T cell cytokines. These cells help suppress or regulate immune responses. They are essential in B cell antibody class switching, in the activation and growth of cytotoxic T cells, and in maximizing bactericidal activity of phagocytes such as macrophages.
Fusion-modified virus-like particles of cmv
The present invention relates to a modified virus-like particle (VLP) of Cucumber Mosaic Virus (CMV) comprising at least one fusion protein, wherein the at least one fusion protein comprises or preferably consists of b) a chimeric CMV polypeptide, wherein the chimeric CMV polypeptide comprises or preferably consists of (iii) a CMV polypeptide, wherein the CMV polypeptide comprises a coat protein of CMV; and (iv) an antigen polypeptide, wherein the antigen polypeptide is inserted into the CMV polypeptide, wherein the insertion of the antigen polypeptide is between amino acid residues corresponding to position 84 and position 85 of SEQ ID NO: 62 of the CMV polypeptide; and (iii) a T helper cell epitope, wherein the T helper cell epitope replaces an N-terminal region of the CMV polypeptide, and wherein preferably the N-terminal region of the CMV polypeptide corresponds to amino acids 2-12 of SEQ ID NO: 62.
Owner:SAIBA AG