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    • 6. 发明申请
    • METHODS AND COMPOSITIONS OF CHIMERIC POLYPEPTIDES FOR TUMOR ANTIGEN VACCINES
    • 用于肿瘤抗原疫苗的寡核苷酸的方法和组合物
    • WO1997035008A1
    • 1997-09-25
    • PCT/US1997004656
    • 1997-03-21
    • THE GOVERNMENT OF THE UNITED STATES OF AMERICA, represented by the SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICESKWAK, Larry, W.BIRAGYN, Arya
    • THE GOVERNMENT OF THE UNITED STATES OF AMERICA, represented by the SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICES
    • C12N15/12
    • C07K14/005A61K39/00C07K14/4727C07K14/82C07K2319/00C12N7/00C12N2730/10122C12N2730/10123
    • The present invention provides a chimeric polypeptide comprising a hepatitis B virus core antigen (HBcAg) region and a region comprising an epitope of a tumor antigen. The present invention further provides a nucleic acid encoding the chimeric polypeptide, a vector comprising the nucleic acid and a cell comprising the vector. Also provided is a method of inhibiting the growth of tumor cells in a subject, comprising administering to the subject a tumor cell growth-inhibiting amount of a chimeric polypeptide comprising a HBcAg region and a region comprising an epitope of a tumor antigen corresponding to a tumor antigen in the subject. A chimeric polypeptide comprising a hepatitis B virus core antigen region and an antigenic polypeptide region comprising greater than 40 amino acids, which assembles into core particles, is also provided, as well as a method for constructing a chimeric polypeptide comprising a hepatitis B virus core antigen region and an antigenic polypeptide region comprising greater than 40 amino acids, which assembles into core particles, comprising cloning into an expression vector a first DNA fragment encoding the hepatitis B core antigen region and a second DNA fragment encoding an antigenic polypeptide region greater than 40 amino acids; and expressing the DNA of the expression vector in an expression system whereby the chimeric polypeptide assembles into core particles.
    • 本发明提供了包含乙型肝炎病毒核心抗原(HBcAg)区域和包含肿瘤抗原表位的区域的嵌合多肽。 本发明还提供了编码嵌合多肽的核酸,包含核酸的载体和包含载体的细胞。 还提供了抑制受试者中肿瘤细胞生长的方法,包括向受试者施用肿瘤细胞生长抑制量的包含HBcAg区的嵌合多肽和包含与肿瘤相应的肿瘤抗原表位的区域 抗原。 还提供了包含乙型肝炎病毒核心抗原区和包含大于40个氨基酸的抗原性多肽区域的嵌合多肽,其组装成核心颗粒,以及构建包含乙型肝炎病毒核心抗原的嵌合多肽的方法 区域和包含大于40个氨基酸的抗原多肽区域,其组装成核心颗粒,包括将表达载体克隆到编码所述乙型肝炎核心抗原区域的第一DNA片段和编码大于40个氨基酸的抗原性多肽区域的第二DNA片段 酸; 并在表达系统中表达表达载体的DNA,由此嵌合多肽组装成核心颗粒。