Abstract:
A method for differentiating precursor natural killer cell into mature natural killer cell is provided to obtain large amount of the mature natural killer cell by treating the precursor natural killer cell with Axl receptor tyrosine kinase. The composition for inducing differentiation of precursor natural killer cell into mature natural killer cell is characterized in that it includes at least one ligand selected from the group consisting of antibody of Axl receptor tyrosine kinase(Axl), gamma-carboxylated growth-arrest specific gene6(Gas6) protein and protein S as a ligand of the Axl. The method comprises the steps of: (a) treating hematopoietic stem cell with interleukin-7, stem cell factor and Flt3 ligand to be differentiated into precursor natural killer cell; and (b) treating the precursor natural killer cell with at least one selected from the group consisting of antibody of Axl receptor tyrosine kinase(Axl), gamma-carboxylated growth-arrest specific gene6(Gas6) protein and protein S.
Abstract:
A composition for differentiation of a mature natural killer(NK) cell and a method for production of the same mature natural killer cell are provided to produce a large quantity of mature natural killer cell to increase cancer-killing effects of the mature natural killer cell. The composition for differentiation of the mature natural killer cell from a precursor natural killer cell(pNK) comprises a ligand of Axl receptor tyrosine kinase. The method for producing the mature natural killer cell comprises the steps of: treating a hematopoietic stem cell with IL-7(interleukine 7), SCF(stem cell factor) and Flt3L(fms-related tyrosine kinase 3 ligand) to differentiate the hematopoietic stem cell into a precursor natural killer cell; and treating the precursor natural killer cell with the ligand of Axl receptor tyrosine kinase, wherein the mature killer cell is useful for treatment of cancers including large intestine cancer, breast cancer, non-Hodgikin's lymphoma and acute ymphocytic leukemia.
Abstract:
A method for production of natural killer(NK) cells is provided to treat cancers without side effects using the natural killer cells by using an Axl gene capable of promoting differentiation from hematopoietic stem cells into natural killer cells. The adult natural killer cells are produced by treating hematopoietic stem cells with IL-7(interleukine 7), SCF(stem cell factor) and Flt3L(fms-related tyrosine kinase 3 ligand), so as to differentiate them into NK precursor cells, and treating the NK precursor cells with the Axl gene, wherein the hematopoietic stem cells are isolated from human cord blood. A recombinant vector pLXSN-Axl contains the Axl gene. A transformant is produced by transforming a host cell, mouse RAW264.7 macrophage, with the recombinant vector pLXSN-Axl.
Abstract:
A chimeric protein consisting of nontoxic CTB(cholera toxin B subunit) of Vibrio cholerae and HPV16 E7(human papilloma virus type 16 E7) protein and use thereof are provided to induce an antibody specific to HPV16 E7 and simultaneously induce mucosa immune response for promoting mucosa permeability of the antibody, so that the protein is useful as an effective ingredient of a vaccine for preventing and treating cervical cancer. The chimeric protein consisting of nontoxic CTB of Vibrio cholerae whose signal peptide region is deleted, and HPV16 E7 protein has the amino acid sequence of SEQ ID NO:6. A gene encoding the chimeric protein has the nucleotide sequence of SEQ ID NO:5. A method for producing the chimeric protein comprises the steps of: constructing a recombinant vector E7-CTB/pET29a containing the chimeric gene; transforming Escherichia coli with the vector to produce E. coli BL21(DE3):E7-CTB/pET29a(KCTC 10894BP); culturing the transformed E. coli; and separating the chimeric protein from the cultured E. coli, and purifying and removing endotoxin from the chimeric protein.
Abstract translation:提供由霍乱弧菌无毒CTB(霍乱毒素B亚基)和HPV16 E7(人乳头瘤病毒16型E7)蛋白组成的嵌合蛋白及其用途,以诱导对HPV16 E7特异性的抗体,同时诱导促进粘膜的粘膜免疫应答 抗体的渗透性,使得该蛋白质可用作预防和治疗子宫颈癌的疫苗的有效成分。 由信号肽区域缺失的霍乱弧菌无毒CTB组成的嵌合蛋白质和HPV16E7蛋白质具有SEQ ID NO:6的氨基酸序列。 编码嵌合蛋白的基因具有SEQ ID NO:5的核苷酸序列。 制备嵌合蛋白的方法包括以下步骤:构建含嵌合基因的重组载体E7-CTB / pET29a; 用载体转化大肠杆菌以产生大肠杆菌BL21(DE3):E7-CTB / pET29a(KCTC 10894BP); 培养转化的大肠杆菌; 并从培养的大肠杆菌中分离嵌合蛋白质,并从嵌合蛋白质中纯化和去除内毒素。
Abstract:
A chimeric protein consisting of nontoxic CTB(cholera toxin B subunit) of Vibrio cholerae and HPV16 E6(human papilloma virus type 16 E6) protein and use thereof are provided to produce vaccine effectively absorbed to a mucosa for preventing and treating cervical cancer by using cervical cancer treating effects of HPV16 E6 protein and mucosa-penetrating ability of CTB. The chimeric protein consists of nontoxic CTB(cholera toxin B subunit) of Vibrio cholerae wherein the signal peptide region is deleted to remove toxicity, and HPV16 E6 protein, has the amino acid sequence of SEQ ID NO:6, is encoded by a gene having the nucleotide sequence of SEQ ID NO:5, and is produced by preparing a vector E6-CTB/pET29a containing the chimeric protein gene, transforming Escherichia coli with the vector to produce Escherichia coli BL21:E6-CTB/pET29a(KCTC 10892BP), culturing Escherichia coli BL21:E6-CTB/pET29a(KCTC 10892BP), separating the chimeric protein from the cultured transformed microorganism and removing endotoxin from the separated chimeric protein.
Abstract translation:提供由霍乱弧菌无毒CTB(霍乱毒素B亚单位)和HPV16 E6(人乳头瘤病毒16型E6)蛋白组成的嵌合蛋白及其用途,以产生有效吸收到粘膜以预防和治疗宫颈癌的疫苗,方法是使用子宫颈 HPV16 E6蛋白的癌症治疗效果和CTB的粘膜穿透能力。 嵌合蛋白由霍乱弧菌的无毒CTB(霍乱毒素B亚基)组成,其中信号肽区缺失以消除毒性,HPV16E6蛋白具有SEQ ID NO:6的氨基酸序列,由具有SEQ ID NO:6的基因编码, SEQ ID NO:5的核苷酸序列,通过制备含有嵌合蛋白质基因的载体E6-CTB / pET29a,用载体转化大肠杆菌来产生大肠杆菌BL21:E6-CTB / pET29a(KCTC 10892BP), 培养大肠杆菌BL21:E6-CTB / pET29a(KCTC 10892BP),从培养的转化微生物中分离嵌合蛋白质,并从分离的嵌合蛋白中除去内毒素。
Abstract:
A chimeric protein consisting of LTB(Escherichia coli heat-labile enterotoxin B subunit) and HPV16 E6(human papilloma virus type 16 E6) protein and use thereof are provided to induce an antibody specific to HPV16 E6 protein and mucosal immune response simultaneously, so that the chimeric protein is useful for production of a vaccine for preventing and treating cervical cancer. The chimeric protein consisting of LTB wherein the signal peptide region is deleted and HPV16 E6 protein has the amino acid sequence of SEQ ID NO:6 and is encoded by a gene having the nucleotide sequence of SEQ ID NO:5. A vector E6-LTB/pET29a contains the chimeric protein gene and is used for production of a transformed Escherichia coli BL21:E6-LTB/pET29a(KCTC 10893BP). The chimeric protein consisting of LTB and HPV16 E6 protein is produced by culturing the transformed Escherichia coli BL21:E6-LTB/pET29a(KCTC 10893BP), separating the chimeric protein from the cultured transformed microorganism and removing endotoxin from the separated chimeric protein.
Abstract translation:提供由LTB(大肠杆菌热不稳定肠毒素B亚基)和HPV16 E6(人乳头瘤病毒16型E6)蛋白组成的嵌合蛋白及其用途,以同时诱导HPV16E6蛋白特异性抗体和粘膜免疫应答,从而 该嵌合蛋白质可用于生产用于预防和治疗子宫颈癌的疫苗。 由LTB组成的嵌合蛋白,其中信号肽区被缺失,HPV16E6蛋白具有SEQ ID NO:6的氨基酸序列,并由具有SEQ ID NO:5的核苷酸序列的基因编码。 载体E6-LTB / pET29a含有嵌合蛋白基因,用于生产转化大肠杆菌BL21:E6-LTB / pET29a(KCTC 10893BP)。 通过培养转化的大肠杆菌BL21:E6-LTB / pET29a(KCTC 10893BP),从培养的转化微生物中分离嵌合蛋白质并从分离的嵌合蛋白质中除去内毒素,产生由LTB和HPV16 E6蛋白组成的嵌合蛋白质。
Abstract:
A method for production of a natural killer(NK) cell is provided to avoid side effects in cancer therapy by using a natural killer cell differentiated from a hematopoietic stem cell instead of a matured natural killer cell. The adult natural killer cell is produced by treating the hematopoietic stem cell with IL-7(interleukine 7), SCF(stem cell factor) and Flt3L(fms-related tyrosine kinase 3 ligand) to differentiate the hematopoietic stem cell into a NK precursor cell, and treating the NK precursor cell with the Axl receptor and its ligand Gas6. The hematopoietic stem cell is isolated from the human cord blood; the Axl is a recombinant Axl produced from a transformant containing a recombinant vector pLXSN-Axl; the host cell of the transformant containing the recombinant vector pLXSN-Axl is a mouse RAW264.7 macrophage; the recombinant Gas6 is produced from a transformant containing a recombinant vector pcDNA3.1(+)-GAS6; and the host cell of the transformant containing the recombinant vector pcDNA3.1(+)-GAS6 is a mouse OP9 cell line.
Abstract:
A method for preparing a natural killer cell is provided to treat cancer by obtaining the adult natural killer cell from an adult stem cell. A method for preparing a natural killer cell comprises the steps of: (a) treating an adult stem cell derived from cord blood of human with IL-7, SCF and Flt3L to be differentiated into a natural killer precursor cell; and (b) treating the natural killer precursor cell with Gas6. A transfectant comprises a recombinant vector pcDNA3.1(+)-GAS6.
Abstract:
A chimeric protein consisting of LTB(Escherichia coli heat-labile enterotoxin B subunit) and HPV16 E7(human papilloma virus type 16 E7) protein and use thereof are provided to produce a vaccine for preventing and treating cervical cancer capable of inducing an antibody specific to HPV16 E7 protein, and improve mucosa permeability of the vaccine by inducing mucosal immune response. The chimeric protein having the amino acid sequence of SEQ ID NO:6 consists of LTB wherein the signal peptide region is deleted, and HPV16 E6 protein. A vector E7-LTB/pET29a contains a recombinant gene encoding the chimeric protein having the nucleotide sequence of SEQ ID NO:5. The chimeric protein is produced by transforming Escherichia coli with the vector E7-LTB/pET29a to produce Escherichia coli BL21(DE3):E7-LTB/pET29a(KCTC 10895BP), culturing the Escherichia coli BL21(DE3):E7-LTB/pET29a(KCTC 10895BP), separating the chimeric protein from the cultured Escherichia coli, and removing endotoxin from the separated chimeric protein. An oral vaccine for preventing and treating cervical cancer comprises the chimeric protein as an effective ingredient.
Abstract:
Novel recombinant vectors are provided to be used for expressing triggering receptor expressed on myeloid cells 2b(TREM-2) which is expressed at the activity of natural killer cell and the differentiation process and plays important role on innate immunity. The recombinant vector pcDNA3.1-TREM-2 expresses TREM-2 involved with innate immunity. The recombinant vector pLXSN-TREM-2 expresses TREM-2 involved with innate immunity.