Novel Replicase Cycling Reaction (RCR)

    公开(公告)号:US20220411848A1

    公开(公告)日:2022-12-29

    申请号:US17648336

    申请日:2022-01-19

    IPC分类号: C12Q1/686 C12N9/12

    摘要: This invention generally relates to a novel RNA/mRNA production and amplification method using viral RNA replicase and/or RNA-dependent RNA polymerase (RdRp) enzymes as well as the associated mRNAs thereof. The present invention can be used for manufacturing and amplifying all varieties of RNA/mRNA sequences carrying at least an RdRp-binding site in the 5′- or 3′-end, or both. The RNA/mRNA so obtained is useful for not only producing mRNA vaccines and/or RNA-based medicines but also for generating the mRNA-associated proteins, peptides, and/or antibodies under an in-vitro as well as in-cell translation condition. Principally, the present invention is a novel RNA replicase-mediated RNA/mRNA amplification method, namely Replicase Cycling Reaction (RCR). The RNA replicases involved in RCR include but not limited to viral and/or bacteriophage RNA-dependent RNA polymerases (RdRp), particularly coronaviral and hepatitis C viral (HCV) RdRp enzymes.

    NOVEL MRNA COMPOSITION AND PRODUCTION METHOD FOR USE IN ANTI-VIRAL AND ANTI-CANCER VACCINES

    公开(公告)号:US20220396798A1

    公开(公告)日:2022-12-15

    申请号:US17489357

    申请日:2021-09-29

    IPC分类号: C12N15/113 C12N15/85

    摘要: This invention relates to a novel mRNA composition and its production method useful for developing and manufacturing RNA-based anti-viral and/or anti-cancer vaccines and medicines. This invention includes two types of mRNA constructs, namely “5′-hairpin messenger RNA (5hmRNA)” and “messenger-hairpin-messenger RNA (mhmRNA)”, respectively. Both of 5hmRNA and mhmRNA contain at least a hairpin-like stem-loop RNA structure. The 5hmRNA contains at least a stem-loop RNA structure in the 5′-UTR of a protein/peptide-coding mRNA, while the mhmRNA contains a middle stem-loop structure flanked with two protein/peptide-coding mRNA sequences on both sides. In mhmRNA, the first 5′-mRNA preferably encodes an RNA replicase, for amplifying the second 3′-mRNA in transfected cells. After transfection into target cells, 5hmRNA and mhmRNA can be further translated into at least a desired protein/peptide. To produce highly structured 5hmRNA and mhmRNA, a novel PCR-IVT methodology has been developed and used with a specially designed RNA polymerase-helicase mixture reaction

    Novel RNA Composition and Production Method for Use in iPS Cell Generation

    公开(公告)号:US20220396778A1

    公开(公告)日:2022-12-15

    申请号:US17648340

    申请日:2022-01-19

    摘要: This invention generally relates to a novel RNA composition and its production method useful for generating and expanding induced pluripotent stem cells (iPS cells; iPSC) as well as adult stem cells (ASC). The RNA composition so defined can be used for producing not only non-transgenic but also tumor-free iPS cells. The defined RNA composition contans at least two types of different RNA constructs; one is “miR-302 precursor RNA (pre-miR-302)” and the other is “RNA-dependent RNA polymerase (RdRp)” mRNA. Both of pre-miR-302 and RdRp mRNA contain highly structured RNA comformations, such as hairpin and stem-loop structures. To produce highly structured RNAs, a novel PCR-IVT methodology has been developed and used with a specially designed RNA polymerase-helicase mixture activity.

    USE OF MICRORNA PRECURSORS AS DRUGS FOR INDUCING CD34-POSITIVE ADULT STEM CELL EXPANSION

    公开(公告)号:US20170342418A1

    公开(公告)日:2017-11-30

    申请号:US15661346

    申请日:2017-07-27

    摘要: This invention generally relates to a composition and its production method useful for developing drugs/vaccines and/or therapies against a variety of degenerative diseases in humans. Particularly, the present invention teaches the essential steps of production and purification processes necessary for producing small hairpin-like RNA (shRNA) compositions, such as microRNA precursors (pre-miRNA) and short interfering RNAs (siRNA), which are useful for treating human ageing related diseases, such as, but not limited, Alzheimer's diseases, Parkinson's diseases, osteoporosis, diabetes, and cancers. The novelty of the present invention is to create an artificially enhanced adaptation environment for prokaryotic cells to adopt eukaryotic pol-2 and/or pol-2-like promoters for transcribing desired ncRNAs and/or their precursors without going through error-prone prokaryotic promoters, so as to improve the productive efficiency and reading fidelity of the shRNA transcription in the prokaryotic cells. The resulting shRNAs, preferably pre-miRNAs and siRNAs, are useful for developing therapeutic drugs against human degenerative diseases, particularly through a mechanism to induce CD34-positive stem cell expansion and/or regeneration.

    Generation of human embryonic stem-like cells using intronic RNA
    6.
    发明授权
    Generation of human embryonic stem-like cells using intronic RNA 有权
    使用内含子RNA产生人胚胎干细胞样细胞

    公开(公告)号:US09567591B2

    公开(公告)日:2017-02-14

    申请号:US12149725

    申请日:2008-05-07

    CPC分类号: C12N15/63

    摘要: This invention generally relates to a method for developing, generating and selecting human embryonic stem (hES)-like pluripotent cells using transgenic expression of intronic microRNA-like RNA agents. More particularly, the present invention relates to a method and composition for generating a non-naturally occurring intron and its intronic components capable of being processed into mir-302-like RNA molecules in mammalian cells and thus inducing certain specific gene silencing effects on differentiation-related and fate-determinant genes of the cells, resulting in reprogramming the cells into a pluripotent embryonic stem (ES)-cell-like state. The ES-like cells so obtained are strongly express hES cell markers, such as Oct3/4, SSEA-3 and SSEA-4, and can be guided into various tissue cell types by treating certain hormones and/or growth factors under a feeder-free cell culture condition in vitro, which may be used for transplantation and gene therapies. Therefore, the present invention offers a simple, effective and safe gene manipulation approach for not only reprogramming somatic cells into ES-like pluripotent cells but also facilitating the maintenance of pluripotent and renewal properties of ES cells under a feeder-free cell culture condition, preventing the tedious retroviral insertion of four large transcription factor genes into one single cell as used in the previous iPS methods.

    摘要翻译: 本发明一般涉及使用内含子微RNA样RNA试剂的转基因表达来开发,产生和选择人胚胎干(hES)样多能细胞的方法。 更具体地说,本发明涉及一种用于产生非天然存在的内含子及其内含子组分的方法和组合物,其能够在哺乳动物细胞中加工成mir-302样RNA分子,从而诱导对分化 - 相关和命运决定基因,导致将细胞重编程为多能胚胎干(ES)细胞样状态。 如此获得的ES样细胞强烈表达hES细胞标志物,例如Oct3 / 4,SSEA-3和SSEA-4,并且可以通过在饲养层上处理某些激素和/或生长因子而被引导到各种组织细胞类型中, 体外免疫细胞培养条件,可用于移植和基因治疗。 因此,本发明提供了一种简单,有效和安全的基因操作方法,用于不仅将体细胞重编程为ES样多能细胞,而且有助于在无饲养细胞培养条件下维持ES细胞的多能性和更新性质,预防 将以前的iPS方法中使用的四个大转录因子基因的繁琐的逆转录病毒插入一个单细胞中。

    PRODUCTION AND UTILIZATION OF A NOVEL ANTI-CANCER DRUG IN THERAPY

    公开(公告)号:US20160289682A1

    公开(公告)日:2016-10-06

    申请号:US15167219

    申请日:2016-05-27

    IPC分类号: C12N15/113

    摘要: This invention generally relates to a design and method for developing novel anti-tumor and/or anti-cancer drugs, vaccines and therapies, using microRNA and/or its shRNA homologues/mimics/derivatives. More specifically, the present invention relates to an use of a prokaryote-produced miRNA precursor (pro-miRNA) composition capable of being delivered into human cells and processed by the cells into mature miRNA effectors to elicit specific silencing effects on mir-302-targeted genes, subsequently leading to a beneficial result of tumor suppression and cancer therapy. The prokaryotic cells do not naturally express or process eukaryotic miRNA precursors (pre-miRNA); meanwhile, the present invention also teaches an inducible method for expressing pre-miRNAs, particularly mir-302 precursors by using the prokaryotic transcription system. Since mir-302 is a known tumor suppressor in human, this novel finding advances the design and method for developing new anti-cancer drugs, vaccines and/or therapies directed against multiple kinds of human tumors and cancers.

    NOVEL SUGAR ALCOHOL-BASED COMPOSITIONS FOR DELIVERING NUCLEIC ACID-BASED DRUGS IN VIVO AND IN VITRO
    8.
    发明申请
    NOVEL SUGAR ALCOHOL-BASED COMPOSITIONS FOR DELIVERING NUCLEIC ACID-BASED DRUGS IN VIVO AND IN VITRO 有权
    用于在血液和体内输送基于核酸的药物的新型基于酒精的基于醇的组合物

    公开(公告)号:US20140350085A1

    公开(公告)日:2014-11-27

    申请号:US14457829

    申请日:2014-08-12

    摘要: This invention relates to a composition and its use for formulating nucleic acid-based drugs/vaccines with sugar alcohol compositions into complexes for both in-vitro and in-vivo delivery. Particularly, the present invention includes the ingredients and processes necessary for formulating therapeutic and pharmaceutical nucleic acid compositions, such as miRNA, microRNA precursors, shRNAs, siRNAs, ribozymes, antisense RNAs/DNAs, RNA-DNA hybrids and DNA vectors/vaccines, with glycylated sugar alcohols/sugars into delivery complexes, which can then be absorbed by cells in vivo and in vitro via active endocytosis. Also, the present invention discloses that chemical compounds containing sugar alcohol- and/or sugar-like structures can protect nucleic acids, in particular miRNAs, shRNAs, siRNAs and ribozymes, from degradation in vivo as well as in vitro. Therefore, the present invention is also a formula and method for preserving the structural integrity and functional efficacy of these nucleic acid-based drugs and/or vaccines in vivo and in vitro.

    摘要翻译: 本发明涉及一种组合物及其用于将糖醇组合物配制成用于体外和体内递送的复合物的基于核酸的药物/疫苗的用途。 特别地,本发明包括配制具有糖基化的治疗和药物核酸组合物如miRNA,微RNA前体,shRNA,siRNA,核酶,反义RNA / DNA,RNA-DNA杂交体和DNA载体/疫苗所必需的成分和方法 糖醇/糖进入递送复合物,其然后可以通过活性内吞作用在体内和体外被细胞吸收。 此外,本发明公开了含有糖醇和/或糖类结构的化合物可以保护核酸,特别是miRNA,shRNA,siRNA和核酶免受体内和体外降解。 因此,本发明也是用于在体内和体外保持这些基于核酸的药物和/或疫苗的结构完整性和功能功效的配方和方法。

    PRODUCTION AND EXTRACTION OF MicroRNA PRECURSOR AS DRUG FOR CANCER THERAPY
    9.
    发明申请
    PRODUCTION AND EXTRACTION OF MicroRNA PRECURSOR AS DRUG FOR CANCER THERAPY 有权
    作为药物治疗的微RNA前体的生产和提取

    公开(公告)号:US20140141470A1

    公开(公告)日:2014-05-22

    申请号:US14142512

    申请日:2013-12-27

    IPC分类号: C12N15/113

    摘要: This invention generally relates to a composition for developing novel anti-cancer drugs and/or vaccines and producing microRNA precursor (pre-miRNA) and/or its shRNA homologues/mimics/derivatives, and a method thereof. The present invention also relates to a use of a composition in producing novel prokaryote-produced microRNA precursor (pro-miRNA) capable of being delivered into human cells and processed by the cells into microRNA-like effectors to elicit specific silencing effects on certain targeted oncogenes, subsequently leading to a therapeutic result of tumor suppression and cancer therapy. Specifically, the method of the present invention includes inducing an expression of the pre-miRNA/pro-miRNAs, particularly human pre-miR-302, in prokaryotes through pol-2 or pol-2-like RNA promoter. Most importantly, the composition of the present invention is further a novel pre-miRNA-based drug that is capable of reprogramming the malignant properties of high-grade human liver cancers into a low-grade benign or even relatively normal stage—a mechanism called “Cancer Reversion”.

    摘要翻译: 本发明一般涉及用于开发新的抗癌药物和/或疫苗并产生微小RNA前体(pre-miRNA)和/或其shRNA同源物/模拟物/衍生物的组合物及其方法。 本发明还涉及一种组合物在生产新型原核生产的微小RNA前体(pro-miRNA)中的用途,其能够被递送到人类细胞中并被细胞加工成微小RNA样效应物以引发对某些靶向癌基因的特异性沉默效应 ,随后导致肿瘤抑制和癌症治疗的治疗结果。 具体地说,本发明的方法包括通过pol-2或pol-2样RNA启动子在原核生物中诱导前miRNA /前miRNAs,特别是人pre-miR-302的表达。 最重要的是,本发明的组合物还是一种新的基于前体miRNA的药物,其能够将高级别人类肝癌的恶性特征重新编程成低级良性或甚至相对正常的阶段 - 称为“ 癌症逆转“。

    PRODUCTION AND UTILIZATION OF A NOVEL ANTI-CANCER DRUG IN THERAPY
    10.
    发明申请
    PRODUCTION AND UTILIZATION OF A NOVEL ANTI-CANCER DRUG IN THERAPY 审中-公开
    治疗中新型抗癌药物的生产和利用

    公开(公告)号:US20130324590A1

    公开(公告)日:2013-12-05

    申请号:US13964705

    申请日:2013-08-12

    IPC分类号: C12N15/113

    摘要: This invention generally relates to a design and method for developing novel anti-tumor and/or anti-cancer drugs, vaccines and therapies, using microRNA and/or its shRNA homologues/mimics/derivatives. More specifically, the present invention relates to an use of a prokaryote-produced miRNA precursor (pro-miRNA) composition capable of being delivered into human cells and processed by the cells into mature miRNA effectors to elicit specific silencing effects on mir-302-targeted genes, subsequently leading to a beneficial result of tumor suppression and cancer therapy. The prokaryotic cells do not naturally express or process eukaryotic miRNA precursors (pre-miRNA); meanwhile, the present invention also teaches an inducible method for expressing pre-miRNAs, particularly mir-302 precursors by using the prokaryotic transcription system. Since mir-302 is a known tumor suppressor in human, this novel finding advances the design and method for developing new anti-cancer drugs, vaccines and/or therapies directed against multiple kinds of human tumors and cancers.

    摘要翻译: 本发明一般涉及使用微小RNA和/或其shRNA同源物/模拟物/衍生物开发新的抗肿瘤和/或抗癌药物,疫苗和疗法的设计和方法。 更具体地说,本发明涉及原核生产的miRNA前体(pro-miRNA)组合物的用途,该组合物能够被递送到人类细胞中并被细胞加工成成熟的miRNA效应子以引起对mir-302靶向的特异性沉默效应 基因,随后导致肿瘤抑制和癌症治疗的有益结果。 原核细胞不是天然表达或加工真核miRNA前体(pre-miRNA); 同时,本发明还教导了通过使用原核转录系统表达前miRNAs,特别是mir-302前体的诱导型方法。 由于mir-302是人类已知的肿瘤抑制因子,因此该新发现推进了开发针对多种人类肿瘤和癌症的新的抗癌药物,疫苗和/或疗法的设计和方法。