摘要:
A vaccine composition comprising a fusion protein for inducing enhanced pathogen antigen-specific T cell responses is disclosed. The fusion protein comprises: (a) an antigen-presenting cell (APC)-binding domain or a CD91 receptor-binding domain, located at the N-terminus of the fusion protein; (b) a translocation peptide of 34-112 amino acid residues in length, comprising an amino acid sequence that is at least 90% identical to SEQ ID NO: 4, 2, 3, or 6, located at the C-terminus of the APC-binding domain or the CD91 receptor-binding domain; and (c) an antigen of a pathogen, located at the C-terminus of the translocation peptide; (d) a nuclear export signal, comprising the amino acid sequence of SEQ ID NO: 13; and (e) an endoplasmic reticulum retention sequence, located at the C-terminus of the fusion protein.
摘要翻译:公开了包含用于诱导增强的病原体抗原特异性T细胞应答的融合蛋白的疫苗组合物。 融合蛋白包括:(a)位于融合蛋白N末端的抗原呈递细胞(APC)结合结构域或CD91受体结合结构域; (b)长度为34-112个氨基酸残基的易位肽,其包含与SEQ ID NO:4,2,3或6至少90%相同的氨基酸序列,位于SEQ ID NO: APC结合结构域或CD91受体结合结构域; 和(c)位于移位肽的C末端的病原体的抗原; (d)包含SEQ ID NO:13的氨基酸序列的核出口信号; 和(e)位于融合蛋白C末端的内质网保留序列。
摘要:
A recombinant baculovirus displaying on its envelop a fusion protein is disclosed. The fusion protein comprises a heterologous antigen, and a C-terminal region of baculovirus envelope GP64 protein, which has at least 100 amino acid residues in length and lacks a B12D5 binding epitope located within the central basic region of the GP64 protein. The genome of the recombinant baculovirus comprises a transgene encoding a fusion protein that comprises a signal peptide, the heterologous antigen, and the C-terminal region of the baculovirus envelope GP64 protein, in which the antigen is located between the signal peptide and the C-terminal region of the GP64 protein. The recombinant baculovirus is for use in eliciting an antigen-specific immunogenic response in a subject in need thereof.
摘要:
A fusion protein comprising an antigen-presenting cell (APC)-binding domain or a CD91 receptor-binding domain, a translocation peptide, a fusion antigen, an endoplasmic reticulum retention sequence, and optionally a nuclear export signal is disclosed. The fusion antigen comprises a porcine reproductive and respiratory syndrome virus (PRRSV) ORF7 antigen, a PRRSV ORF1b antigen, a PRRSV ORF6 antigen, and a PRRSV ORF5 antigen. The fusion protein is useful for inducing antigen-specific cell-mediated and humoral responses.