Magnetic nanoparticle-samirna complex and method for preparing same

    公开(公告)号:US09649388B2

    公开(公告)日:2017-05-16

    申请号:US14372211

    申请日:2013-01-17

    Abstract: Provided are a SAMiRNA-magnetic nanoparticle complex capable of effectively delivering a double-stranded oligo RNA and magnetic nanoparticles into a cell and a composition capable of simultaneously performing diagnosis and therapy of diseases such as cancer, and the like, containing the same. More specifically, provided is the SAMiRNA-magnetic nanoparticle complex consisting of double-stranded oligo RNA-polymer structures in which a hydrophilic material and a second hydrophobic material are bound to the double-stranded oligo RNA by a simple covalent bond or a linker-mediated covalent bond, and the magnetic nanoparticles in which a first hydrophobic material is bound onto a surface of the magnetic material, as a core.The SAMiRNA-magnetic nanoparticle complex may have a homogeneous size by a hydrophobic interaction between the first hydrophobic material of the present invention and the second hydrophobic material of the double-stranded oligo RNA structure.In addition, the hydrophilic material and the second hydrophobic material bound to the double-stranded oligo RNA structure may improve in vivo stability of the double-stranded oligo RNA, an additionally bound ligand may deliver the SAMiRNA-magnetic nanoparticle complex into a target cell even at a relative low concentration of dosage, and the magnetic materials of the magnetic nanoparticles may be used as an imaging agent for diagnosis.

    DENGUE VIRUS-SPECIFIC SIRNA, DOUBLE HELIX OLIGO-RNA STRUCTURE COMPRISING SIRNA, AND COMPOSITION FOR SUPPRESSING PROLIFERATION OF DENGUE VIRUS COMPRISING RNA STRUCTURE
    6.
    发明申请
    DENGUE VIRUS-SPECIFIC SIRNA, DOUBLE HELIX OLIGO-RNA STRUCTURE COMPRISING SIRNA, AND COMPOSITION FOR SUPPRESSING PROLIFERATION OF DENGUE VIRUS COMPRISING RNA STRUCTURE 有权
    登革病毒特异性SIRNA,包含SIRNA的双重HELIX OLIGO-RNA结构和用于抑制包含RNA结构的登革热病毒增殖的组合物

    公开(公告)号:US20160145622A1

    公开(公告)日:2016-05-26

    申请号:US14902564

    申请日:2014-07-04

    Abstract: The present invention relates to a dengue virus-specific siRNA, a double-stranded oligo RNA structure comprising the siRNA, and a composition for inhibiting dengue virus replication, which comprises the same, in which the double-stranded oligo RNA structure comprises a hydrophilic compound and hydrophobic compound conjugated to both ends of the double-stranded RNA (siRNA) by a single covalent bond or a linker-mediated covalent bond so that they will be efficiently delivered into cells, and can be converted into nanoparticles by hydrophobic interactions between the double-stranded oligo RNA structures in an aqueous solution. The siRNA included in the double-stranded oligo RNA structure acts specifically on all dengue virus serotypes. The present invention also relates to a method for preparing the double-stranded oligo RNA structure, and a pharmaceutical composition for preventing or treating dengue virus infection, which comprises the double-stranded oligo RNA structure.

    Abstract translation: 本发明涉及登革病毒特异性siRNA,包含siRNA的双链寡聚RNA结构和用于抑制登革病毒复制的组合物,其包含其中双链寡RNA结构包含亲水化合物 和通过单个共价键或连接体介导的共价键与双链RNA(siRNA)的两端缀合的疏水性化合物,使得它们将被有效地递送到细胞中,并且可以通过双重的疏水相互作用转化成纳米颗粒 在水溶液中的品系寡聚RNA结构。 包含在双链寡聚RNA结构中的siRNA特异性地对所有登革热病毒血清型起作用。 本发明还涉及制备双链寡聚RNA结构的方法,以及包含双链寡聚RNA结构的用于预防或治疗登革病毒感染的药物组合物。

    NOVEL OLIGONUCLEOTIDE CONJUGATES AND USE THEREOF
    8.
    发明申请
    NOVEL OLIGONUCLEOTIDE CONJUGATES AND USE THEREOF 审中-公开
    新型寡核苷酸结合物及其用途

    公开(公告)号:US20140371432A1

    公开(公告)日:2014-12-18

    申请号:US14365621

    申请日:2012-12-14

    Abstract: The present invention provides a double-stranded RNA structure, which comprises a polymer compound covalently bonded to a double-helix oligo RNA useful for the treatment of diseases, particularly cancer, in order to enhance the delivery of the double-helix oligo RNA, and further comprises a target-specific ligand bonded thereto, a preparation method thereof, and a technique of delivering the double-helix oligo RNA in a target-specific manner using the RNA structure. A nanoparticle composed of the ligand-bonded double-helix oligo RNA structures can efficiently deliver the double-helix oligo RNA to a target, and thus can exhibit the activity of the double-helix oligo RNA even when the double-helix oligo RNA is administered at a relatively low concentration. Also, it can prevent the non-specific delivery of the double-helix oligo RNA into other organs and cells. Accordingly, the ligand-bonded double-stranded RNA structure can be used for the treatment for various diseases, particularly cancer, and can also be effectively used as a new type of double-helix oligo RNA delivery system. Particularly, the ligand-bonded double-stranded RNA structure can be effectively used for the treatment of diseases, including cancer and infectious diseases. Moreover, the present invention relates to a hybrid conjugate, which comprises a hydrophilic material and hydrophobic material bonded to both ends of an antisense oligonucleotide (ASO) by a covalent bond in order to enhance the in vivo stability of the ASO, a method for preparing the hybrid conjugate, and a nanoparticle composed of the conjugates. The ASO-polymer conjugate according to the invention can increase the in vivo stability of the ASO, making it possible to efficiently deliver the therapeutic ASO into cells. Also, the ASO-polymer conjugate can exhibit the activity of the ASO even when it is administered at a relatively low concentration.

    Abstract translation: 本发明提供双链RNA结构,其包含与用于治疗疾病,特别是癌症的双螺旋寡聚RNA共价键合的高分子化合物,以增强双螺旋寡聚RNA的递送,以及 还包括与其键合的靶特异性配体,其制备方法,以及使用RNA结构以目标特异性方式递送双螺旋寡聚RNA的技术。 由配体结合的双螺旋寡聚RNA结构组成的纳米粒子可以有效地将双螺旋寡聚RNA递送至靶,因此即使施用双螺旋寡核苷酸RNA也能显示双螺旋寡聚RNA的活性 浓度相对较低。 此外,它可以防止双螺旋寡聚RNA非特异性递送到其他器官和细胞中。 因此,配体键合的双链RNA结构可以用于各种疾病,特别是癌症的治疗,也可以有效地用作新型双螺旋寡聚RNA递送系统。 特别地,配体键合的双链RNA结构可以有效地用于治疗包括癌症和感染性疾病在内的疾病。 此外,本发明涉及一种杂合缀合物,其包含通过共价键与反义寡核苷酸(ASO)的两端键合的亲水性材料和疏水性材料,以增强ASO的体内稳定性,制备方法 杂交缀合物和由缀合物组成的纳米颗粒。 根据本发明的ASO-聚合物缀合物可以增加ASO的体内稳定性,使得可以有效地将治疗性ASO递送到细胞中。 此外,即使以相对低的浓度施用,ASO-聚合物缀合物也可以表现出ASO的活性。

    POLYMERASE CHAIN REACTION SYSTEM
    9.
    发明申请

    公开(公告)号:US20220176373A1

    公开(公告)日:2022-06-09

    申请号:US17602665

    申请日:2020-04-09

    Abstract: The present invention relates to a system structure capable of performing real-time detection of nucleic acid extraction and amplification reactions and amplified results in a device for implementing a polymerase chain reaction (PCR). A PCR system includes a nucleic acid extraction cartridge configured to extract a nucleic acid of a biological sample via a nucleic acid extraction reagent stored therein and form a PCR preliminary mixture by being additionally mixed with a polymerase reaction dried product, a PCR plate inserted into the nucleic acid extraction cartridge, having a channel coupled to the nucleic acid extraction cartridge, and receives a nucleic acid solution or the PCR preliminary mixture extracted from the nucleic acid extraction cartridge and diversely accommodates a PCR reaction dried product containing a dried primer/probe or a primer/probe in at least one reaction well, a temperature control module disposed above the PCR plate 200 and including a pair of heating blocks 310 and 320 adjacent to the reaction well (W) to apply different temperatures, and a scanning module scanning a concentration of a reactant amplified in the reaction well (W).

    Biological sample processing apparatus

    公开(公告)号:US11175300B2

    公开(公告)日:2021-11-16

    申请号:US16338218

    申请日:2017-09-28

    Abstract: A biological sample processing apparatus, including: a pipette block with which a plurality of pipettes for sucking or discharging a biological sample in a multi-well plate in which wells are arranged in a matrix shape along row and column directions are detachably coupled; a pipette block forward and backward transfer unit configured to move the pipette block along a forward and backward direction along a process direction; a pipette block top and bottom transfer unit configured to move the pipette block along a vertical direction; a magnetic field applying unit disposed below the multi-well plate for applying a magnetic field to a well of the multi-well plate; and a heating unit disposed below the multi-well plate so as to be spaced apart from the magnetic field applying unit, for heating a well of the multi-well plate.

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