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    • 1. 发明授权
    • Primitive and proximal hepatic stem cells
    • 原始和近端肝干细胞
    • US08691523B2
    • 2014-04-08
    • US11609729
    • 2006-12-12
    • Lola M. ReidNicholas MossMark E. FurthJohn W. LudlowAndrew T. Bruce
    • Lola M. ReidNicholas MossMark E. FurthJohn W. LudlowAndrew T. Bruce
    • C12N5/00
    • C12N5/0672C12N2500/25C12N2500/36C12N2500/90C12N2501/11C12N2502/13G01N33/5005G01N33/68G01N2333/705G01N2333/70525G01N2333/70596
    • Hepatic progenitors comprise two populations of human hepatic stem cells, primitive and proximal hepatic stem cells, and two populations of committed progenitors, one for biliary cells and one for hepatocytes. Human primitive hepatic stem cells are a very small fraction of the liver cell population and give rise to proximal hepatic stem cells constituting a much larger fraction of the liver. Human proximal hepatic stem cells give rise to biliary and hepatocyte committed progenitors. Primitive and proximal stem cells are the primary stem cells for the human liver. Human primitive hepatic stem cells may be isolated by immunoselection from human livers or culturing human liver cells under conditions which select for a human primitive hepatic stem cell. Proximal hepatic stem cells may be isolated by immunoselection, or by culturing human liver cells under conditions which include a developmental factor. Proximal hepatic stem cells may also be isolated by culturing colonies comprising a primitive hepatic stem cell under conditions which include a developmental factor. Resulting compositions may be used for treating liver disorders and for producing bioartificial organs.
    • 肝祖细胞包含两个人类肝干细胞,原始和近端肝干细胞,以及两个定型祖细胞群,一个为胆汁细胞,一个为肝细胞。 人原始肝干细胞是肝细胞群体的非常小的一部分,并且引起近端肝干细胞构成肝脏的大部分。 人近端肝干细胞产生胆汁和肝细胞定向的祖细胞。 原始和近端干细胞是人类肝脏的主要干细胞。 人原始肝干细胞可以通过人肝脏的免疫选择或在选择人原始肝干细胞的条件下培养人肝细胞来分离。 可以通过免疫选择或通过在包括发育因子的条件下培养人肝细胞来分离近端肝干细胞。 也可以通过在包括发育因子的条件下培养包含原始肝干细胞的菌落来分离近端肝干细胞。 所得组合物可用于治疗肝脏疾病和用于生产生物人造器官。
    • 3. 发明授权
    • Primitive and proximal hepatic stem cells
    • 原始和近端肝干细胞
    • US07413897B2
    • 2008-08-19
    • US10387547
    • 2003-03-14
    • Lola M. ReidNicholas MossMark FurthJohn W. LudlowAndrew T. Bruce
    • Lola M. ReidNicholas MossMark FurthJohn W. LudlowAndrew T. Bruce
    • C12N5/00A01N63/00
    • C12N5/0672C12N2500/25C12N2500/36C12N2500/90C12N2501/11C12N2502/13G01N33/5005G01N33/68G01N2333/705G01N2333/70525G01N2333/70596
    • Hepatic progenitors comprise two populations of human hepatic stem cells, primitive and proximal hepatic stem cells, and two populations of committed progenitors, one for biliary cells and one for hepatocytes. Human primitive hepatic stem cells are a very small fraction of the liver cell population and give rise to proximal hepatic stem cells constituting a much larger fraction of the liver. Human proximal hepatic stem cells give rise to biliary and hepatocyte committed progenitors. Primitive and proximal stem cells are the primary stem cells for the human liver. Human primitive hepatic stem cells may be isolated by immunoselection from human livers or culturing human liver cells under conditions which select for a human primitive hepatic stem cell. Proximal hepatic stem cells may be isolated by immunoselection, or by culturing human liver cells under conditions which include a developmental factor. Proximal hepatic stem cells may also be isolated by culturing colonies comprising a primitive hepatic stem cell under conditions which include a developmental factor. Resulting compositions may be used for treating liver disorders and for producing bioartificial organs.
    • 肝祖细胞包含两个人类肝干细胞,原始和近端肝干细胞,以及两个定型祖细胞群,一个为胆汁细胞,一个为肝细胞。 人原始肝干细胞是肝细胞群体的非常小的一部分,并且引起近端肝干细胞构成肝脏的大部分。 人近端肝干细胞产生胆汁和肝细胞定向的祖细胞。 原始和近端干细胞是人类肝脏的主要干细胞。 人原始肝干细胞可以通过人肝脏的免疫选择或在选择人原始肝干细胞的条件下培养人肝细胞来分离。 可以通过免疫选择或通过在包括发育因子的条件下培养人肝细胞来分离近端肝干细胞。 也可以通过在包括发育因子的条件下培养包含原始肝干细胞的菌落来分离近端肝干细胞。 所得组合物可用于治疗肝脏疾病和用于生产生物人造器官。
    • 4. 发明申请
    • HUMAN LIVER PROGENITORS
    • 人类生殖器
    • US20100197015A1
    • 2010-08-05
    • US12695855
    • 2010-01-28
    • Lola M. ReidNicholas MossHiroshi Kubota
    • Lola M. ReidNicholas MossHiroshi Kubota
    • C12N5/071
    • C12N5/0672A61K35/12A61K2039/55594C12N2500/20C12N2500/22C12N2500/25C12N2500/36C12N2503/02
    • Methods of isolating and cryopreserving progenitors from human liver are disclosed which include processing human liver tissue to provide a substantially single cell suspension comprising progenitors and non-progenitors of one or more cell lineages found in human liver; subjecting the suspension to a debulking step, which reduces substantially the number of non-progenitors in the suspension, and which provides a debulked suspension enriched in progenitors exhibiting one or more markers associated with at least one of the one or more cell lineages; and selecting from said debulked suspension those cells, which themselves, their progeny, or more mature forms thereof express one or more markers associated with at least one of the one or more cell lineages. Among these markers are CD14, CD34, CD38, CD45, and ICAM. Hepatic progenitors are characterized as being 6-15μ in diameter, diploid, glycophorin A−, CD45−, AFP+++, ALB+, ICAM+, and with subpopulations varying in expression of CD14+. CD34++, CD38++, CD117+. These progenitor subpopulations have characteristics expected for cells that are particularly useful in liver cell and gene therapies and for establishing bioartificial organs.
    • 公开了从人肝脏分离和冷冻保存祖细胞的方法,其包括加工人肝组织以提供包含在人肝脏中发现的一种或多种细胞谱系的祖细胞和非祖细胞的基本上单细胞悬浮液; 使悬浮液经历减压步骤,其减少了悬浮液中的非祖细胞的数量,并且提供了富含前体细胞的减数分裂的悬浮液,其显示出与一种或多种细胞系中的至少一种相关联的一种或多种标志物; 以及从所述减粘悬浮液中选择这些细胞,其本身,其子代或更成熟的形式表达与所述一种或多种细胞谱系中的至少一种相关联的一种或多种标志物。 这些标记物中有CD14,CD34,CD38,CD45和ICAM。 肝祖细胞的特征是直径为6-15μ,二倍体,血型糖蛋白A-,CD45-,AFP +++,ALB +,ICAM +,以及与CD14 +表达不同的亚群。 CD34 ++,CD38 ++,CD117 +。 这些祖细胞亚群具有特别适用于肝细胞和基因疗法以及建立生物人造器官的细胞的特征。
    • 7. 发明授权
    • Methods of isolating bipotent hepatic progenitor cells
    • 分离双能肝祖细胞的方法
    • US08691579B2
    • 2014-04-08
    • US12326514
    • 2008-12-02
    • Hiroshi KubotaLola M. Reid
    • Hiroshi KubotaLola M. Reid
    • C12N15/09C12N5/00
    • G01N33/5091C12N5/0672C12N2501/50C12N2501/58C12N2501/599
    • A method of obtaining a mixture of cells enriched in hepatic progenitors is developed which comprises methods yielding suspensions of a mixture of cell types, and selecting those cells that are classical MHC class I antigen(s) negative and ICAM-1 antigen positive. The weak or dull expression of nonclassical MHC class I antigen(s) can be used for further enrichment of hepatic progenitors. Furthermore, the progenitors can be selected to have a level of side scatter, a measure of granularity or cytoplasmic droplets, that is higher than that in non-parenchymal cells, such as hemopoietic cells, and lower than that in mature parenchymal cells, such as hepatocytes. Furthermore, the progeny of the isolated progenitors can express alpha-fetoprotein and/or albumin and/or CK19. The hepatic progenitors, so isolated, can grow clonally, that is an entire population of progeny can be derived from one cell. The clones of progenitors have a growth pattern in culture of piled-up aggregates or clusters. These methods of isolating the hepatic progenitors are applicable to any vertebrates including human. The hepatic progenitor cell population is expected to be useful for cell therapies, for bioartificial livers, for gene therapies, for vaccine development, and for myriad toxicological, pharmacological, and pharmaceutical programs and investigations.
    • 开发了获得富含肝祖细胞的细胞混合物的方法,其包括产生细胞类型混合物的悬浮液的方法,并选择那些经典的MHC I类抗原和ICAM-1抗原阳性的细胞。 非典型MHC I类抗原的弱或暗的表达可用于进一步富集肝祖细胞。 此外,可以选择祖细胞具有高于非实质细胞例如造血细胞的侧向散射,粒度或细胞质液滴的量级,并且低于成熟实质细胞中的祖细胞,例如 肝细胞。 此外,分离的祖细胞的后代可以表达甲胎蛋白和/或白蛋白和/或CK19。 如此分离的肝祖细胞可以克隆生长,即可以从一个细胞中获得后代的全部群体。 祖先的克隆在堆积聚集体或簇的培养中具有增长模式。 这些分离肝祖细胞的方法适用于包括人在内的任何脊椎动物。 预期肝祖细胞群可用于细胞疗法,生物人工肝,基因治疗,疫苗开发和无数毒理学,药理学和药物程序和调查。