公开(公告)号：US20160354459A1

公开(公告)日：2016-12-08

申请号：US15176396

申请日：2016-06-08

申请人： STC. UNM

发明人： David S. Peabody ,  Bryce Chackerian

IPC分类号： A61K39/12 ,  C12N7/00

CPC分类号： A61K39/12 ,  A61K39/07 ,  A61K2039/5256 ,  A61K2039/5258 ,  C12N7/00 ,  C12N15/1037 ,  C12N2710/20022 ,  C12N2710/20034 ,  C12N2740/16034 ,  C12N2740/16134 ,  C12N2795/16021 ,  C12N2795/16022 ,  C12N2795/16023 ,  C12N2795/16042 ,  C12N2795/18023 ,  C40B40/08

摘要： The present invention relates to a system and method for controlling peptide display valency on virus-like particles (VLPs), especially including MS2 VLPs. In this method, large amounts of wild-type and low quantities of single-chain dimer coat proteins may be produced from a single RNA. Valency is controlled in immunogen (vaccine) production by providing a system that allows the production of large amounts of wild-type and low quantities of single-chain dimer coating proteins from a single RNA, allowing facile adjustment of display valency levels on VLPs, especially MS2 VLPS over a wide range, from few than one—on average—to as many as ninety per particle. This facilitates the production of immunogens and vaccines, including VLPs exhibiting low valency. Nucleic acid constructs useful in the expression of virus-like particles are disclosed, comprised of a coat polypeptide of MS2 modified by insertion of a heterologous peptide, wherein the heterologous peptide is displayed on the virus-like particle and encapsidates MS2 niRNA. Nucleic acid constructs are also disclosed which are useful in the expression of virus-like particles comprised of a coat polypeptide of PP7 modified by insertion of a heterologous peptide, wherein the heterologous peptide is displayed on the virus-like particle and encapsidates PP7 mRNA.

摘要翻译： 本发明涉及一种用于控制病毒样颗粒（VLPs），特别是包括MS2 VLP的肽显示效价的系统和方法。 在该方法中，可以从单个RNA产生大量野生型和低量的单链二聚体外壳蛋白。 通过提供允许从单个RNA产生大量野生型和少量单链二聚体包被蛋白质的系统，允许轻度调整VLP上的显示剂价位水平，特别是 MS2 VLPS在广泛的范围内，从一个平均至少一个到每个粒子多达九十个。 这有助于免疫原和疫苗的生产，包括显示低效价的VLP。 公开了可用于病毒样颗粒表达的核酸构建物，其由通过插入异源肽修饰的MS2的外壳多肽组成，其中异源肽显示在病毒样颗粒上并包裹MS2nRNA。 还公开了核酸构建体，其可用于由通过插入异源肽修饰的PP7的外壳多肽组成的病毒样颗粒的表达，其中异源肽显示在病毒样颗粒上并包裹PP7 mRNA。

公开(公告)号：US09365831B2

公开(公告)日：2016-06-14

申请号：US13520057

申请日：2010-12-31

申请人： David S. Peabody ,  Bryce Chackerian

发明人： David S. Peabody ,  Bryce Chackerian

IPC分类号： C40B40/08 ,  C12N7/00 ,  A61K39/07 ,  A61K39/12 ,  C12N15/10 ,  A61K39/00

CPC分类号： A61K39/12 ,  A61K39/07 ,  A61K2039/5256 ,  A61K2039/5258 ,  C12N7/00 ,  C12N15/1037 ,  C12N2710/20022 ,  C12N2710/20034 ,  C12N2740/16034 ,  C12N2740/16134 ,  C12N2795/16021 ,  C12N2795/16022 ,  C12N2795/16023 ,  C12N2795/16042 ,  C12N2795/18023 ,  C40B40/08

摘要： The present invention relates to a system and method for controlling peptide display valency on virus-like particles (VLPs), especially including MS2 VLPs. In this method, large amounts of wild-type and low quantities of single-chain dimer coat proteins may be produced from a single RNA. Valency is controlled in immunogen (vaccine) production by providing a system that allows the production of large amounts of wild-type and low quantities of single-chain dimer coating proteins from a single RNA, allowing facile adjustment of display valency levels on VLPs, especially MS2 VLPS over a wide range, from few than one—on average—to as many as ninety per particle. This facilitates the production of immunogens and vaccines, including VLPs exhibiting low valency. Nucleic acid constructs useful in the expression of virus-like particles are disclosed, comprised of a coat polypeptide of MS2 modified by insertion of a heterologous peptide, wherein the heterologous peptide is displayed on the virus-like particle and encapsidates MS2 niRNA. Nucleic acid constructs are also disclosed which are useful in the expression of virus-like particles comprised of a coat polypeptide of PP7 modified by insertion of a heterologous peptide, wherein the heterologous peptide is displayed on the virus-like particle and encapsidates PP7 mRNA.

摘要翻译： 本发明涉及一种用于控制病毒样颗粒（VLPs），特别是包括MS2 VLP的肽显示效价的系统和方法。 在该方法中，可以从单个RNA产生大量野生型和低量的单链二聚体外壳蛋白。 通过提供允许从单个RNA产生大量野生型和少量单链二聚体包被蛋白质的系统，允许轻度调整VLP上的显示剂价位水平，特别是 MS2 VLPS在广泛的范围内，从一个平均至少一个到每个粒子多达九十个。 这有助于免疫原和疫苗的生产，包括显示低效价的VLP。 公开了可用于病毒样颗粒表达的核酸构建物，其由通过插入异源肽修饰的MS2的外壳多肽组成，其中异源肽显示在病毒样颗粒上并包裹MS2nRNA。 还公开了核酸构建体，其可用于由通过插入异源肽修饰的PP7的外壳多肽组成的病毒样颗粒的表达，其中异源肽显示在病毒样颗粒上并包裹PP7 mRNA。

公开(公告)号：US20120295813A1

公开(公告)日：2012-11-22

申请号：US13520057

申请日：2010-12-31

申请人： David S. Peabody ,  Bryce Chackerian

发明人： David S. Peabody ,  Bryce Chackerian

IPC分类号： C12N15/70 ,  C12N7/00 ,  C40B40/02 ,  C40B30/04 ,  C40B30/00 ,  C07K2/00 ,  C07K1/14 ,  C12N1/21 ,  C40B50/06

CPC分类号： A61K39/12 ,  A61K39/07 ,  A61K2039/5256 ,  A61K2039/5258 ,  C12N7/00 ,  C12N15/1037 ,  C12N2710/20022 ,  C12N2710/20034 ,  C12N2740/16034 ,  C12N2740/16134 ,  C12N2795/16021 ,  C12N2795/16022 ,  C12N2795/16023 ,  C12N2795/16042 ,  C12N2795/18023 ,  C40B40/08

摘要： The present invention relates to a system and method for controlling peptide display valency on virus-like particles (VLPs), especially including MS2 VLPs. In this method, large amounts of wild-type and low quantities of single-chain dimer coat proteins may be produced from a single RNA. Valency is controlled in immunogen (vaccine) production by providing a system that allows the production of large amounts of wild-type and low quantities of single-chain dimer coating proteins from a single RNA, allowing facile adjustment of display valency levels on VLPs, especially MS2 VLPS over a wide range, from few than one-on average—to as many as ninety per particle. This facilitates the production of immunogens and vaccines, including VLPs exhibiting low valency. Nucleic acid constructs useful in the expression of virus-like particles are disclosed, comprised of a coat polypeptide of MS2 modified by insertion of a heterologous peptide, wherein the heterologous peptide is displayed on the virus-like particle and encapsidates MS2 niRNA. Nucleic acid constructs are also disclosed which are useful in the expression of virus-like particles comprised of a coat polypeptide of PP7 modified by insertion of a heterologous peptide, wherein the heterologous peptide is displayed on the virus-like particle and encapsidates PP7 mRNA.

摘要翻译： 本发明涉及一种用于控制病毒样颗粒（VLPs），特别是包括MS2 VLP的肽显示效价的系统和方法。 在该方法中，可以从单个RNA产生大量野生型和低量的单链二聚体外壳蛋白。 通过提供允许从单个RNA产生大量野生型和少量单链二聚体包被蛋白质的系统，允许轻度调整VLP上的显示剂价位水平，特别是 MS2 VLPS在广泛的范围内，从一个平均至少一个到每个粒子多达九十个。 这有助于免疫原和疫苗的生产，包括显示低效价的VLP。 公开了可用于病毒样颗粒表达的核酸构建物，其由通过插入异源肽修饰的MS2的外壳多肽组成，其中异源肽显示在病毒样颗粒上并包裹MS2nRNA。 还公开了核酸构建体，其可用于由通过插入异源肽修饰的PP7的外壳多肽组成的病毒样颗粒的表达，其中异源肽显示在病毒样颗粒上并包裹PP7 mRNA。