摘要:
A buffer solution for suspending animal or human cells and for dissolving biologically active molecules in order to introduce the biologically active molecules into the cells using electric current. The buffer solution includes at least one of sodium succinate, mannitol and sodium lactobionate. The buffer solution has a buffer capacity of at least 20 mmol*l−1*pH−1 at a change in the from pH 7 to pH 8 and at a temperature of 25° C., and an ionic strength of at least 200 mmol * l−1.
摘要:
The present invention relates to a method for transfection of cells using at least one protein capable of forming nucleoprotein filaments, wherein the protein is initially modified with at least one functional component which influences one or more steps of the transfection, the nucleic acid to be transfected is then loaded with the modified protein, whereby the nucleic acid and the protein form a filament-like complex, and this complex is finally added to the cells to be transfected. The invention further relates to a transfection agent consisting of nucleoprotein filaments (NPF), with at least one nucleoprotein filament-forming protein being modified with at least one functional component for the transfection. Furthermore, the present invention relates to the use of the transfection agent according to the invention for producing a drug for gene therapeutic treatment of humans and animals. The present inventions also includes corresponding pharmaceutical preparations, especially for use in gene therapy as well as the use of such transfection agents as component in kits.
摘要:
The invention relates to a novel circuit arrangement for electrotransfection or electrofusion, which enables the transportation of DNA and/or other biologically active molecules to the nucleus of higher eukaryotic cells or the fusion of cells, independent of cell division and with reduced cell mortality.
摘要:
The present invention relates to a method for transfection of cells using at least one protein capable of forming nucleoprotein filaments, wherein the protein is initially modified with at least one functional component which influences one or more steps of the transfection, the nucleic acid to be transfected is then loaded with the modified protein, whereby the nucleic acid and the protein form a filament-like complex, and this complex is finally added to the cells to be transfected. The invention further relates to a transfection agent consisting of nucleoprotein filaments (NPF), with at least one nucleoprotein filament-forming protein being modified with at least one functional component for the transfection. Furthermore, the present invention relates to the use of the transfection agent according to the invention for producing a drug for gene therapeutic treatment of humans and animals. The present inventions also includes corresponding pharmaceutical preparations, especially for use in gene therapy as well as the use of such transfection agents as component in kits.
摘要:
The invention relates to a buffer solution for suspending animal or human cells and for dissolving biologically active molecules in order to introduce biologically active molecules into cells using an electric current. The inventive buffer solution has a buffering capacity of at least 20 mmol−1×pH−1 and an ionic strength of at least 200 mmol×1−1 during a change to the pH value from pH 7 to pH 8 and at a temperature of 25° C. The use of a buffer solution of this type allows biologically active molecules to be introduced into animal and human cells with a high degree of transfection efficiency and at the same time a low cell mortality. Different cell types, in particular dormant and actively dividing cells of low activity, can be successfully transfected in the buffer solution.
摘要:
The invention relates to a buffer solution for suspending animal or human cells and for dissolving biologically active molecules in order to introduce said biologically active molecules into the cells using an electric current and to a method for introducing biologically active molecules into animal or human cells using an electric current and a buffer solution. The inventive buffer solution has a buffering capacity of at least 20 mmol*I−1*pH−1 and an ionic strength of at least 200 mmol*I−1 during a change to the pH value from pH 7 to pH 8 and at a temperature of 25° C. The use of a buffer solution of this type in the corresponding method allows biologically active molecules to be introduced into animal and human cells with a high degree of transfection efficiency and at the same time a low cell mortality. Different cell types, in particular dormant and actively dividing cells of low activity, can be successfully transfected in said buffer solution.
摘要翻译:本发明涉及一种用于悬浮动物或人细胞并用于溶解生物活性分子以便使用电流将所述生物活性分子引入细胞的缓冲溶液以及使用以下方法将生物活性分子引入动物或人细胞的方法: 电流和缓冲液。 本发明的缓冲溶液在pH值从pH7变化期间具有至少20mmol * I -1 * pH <-1的缓冲能力和至少200mmol * I -1的离子强度 至pH8,温度为25℃。在相应方法中使用这种类型的缓冲溶液使生物活性分子以高度的转染效率被引入动物和人类细胞,并且同时 细胞死亡率低。 可以在所述缓冲溶液中成功转染不同细胞类型,特别是低活性的休眠和活跃分化细胞。
摘要:
A method for introducing biologically active molecules into animal or human cells using an electric current includes suspending the cells and dissolving the biologically active molecules in a buffer solution including HEPES and at least 10 mmol×1−1 magnesium ions (Mg2+), the buffer solution having a buffer capacity of at least 20 mmol×1−1×pH−1 at a change in the pH from pH 7 to pH 8 and at a temperature of 25° C., and an ionic strength of at least 200 mmol×1−1. An electric voltage is applied to the suspension.
摘要:
Disclosed is a device for processing biological material which at least comprises a chamber at least closable to the outside and having an inner space for receiving the biological material. The chamber comprises at least one electrode placed in contact with the inner space for generating an electric field. Also disclosed is a method for processing biological material. The biological material is introduced into the inner space above and the electrode can generate an electric field after said biological material is introduced by applying voltage to said electrode and a further electrode in contact with the inner space. The chamber comprises at least one inlet line having at least one opening arranged close to the electrode. The biological material is almost completely rinsed out of the inner space after the electric field is generated, via a solution guided via an inlet line of the chamber along at least one electrode.
摘要:
The present invention relates to a transport agent for transporting nucleic acids into eukaryotic cells and a method for producing said agent. The invention further concerns methods for transporting nucleic acids into eukaryotic cells using the transport agent according to the invention. The present invention provides an alternative transport agent and a method which are effective to allow an efficient transport of nucleic acids into eukaryotic cells. The transport agent comprises a complex forming moiety that is capable of forming complexes with at least one nucleic acid molecule and condensing said nucleic acid molecule, and at least one nuclear localization moiety comprising at least one nuclear localization signal and having an approximately neutral net charge.
摘要:
The invention relates to a novel circuit arrangement for electrotransfection or electrofusion, which enables the transportation of DNA and/or other biologically active molecules to the nucleus of higher eukaryotic cells or the fusion of cells, independent of cell division and with reduced cell mortality.