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    • 3. 发明授权
    • PB 39, a gene dysregulated in prostate cancer, and uses thereof
    • PB39,前列腺癌失调的基因及其用途
    • US07226731B1
    • 2007-06-05
    • US09743825
    • 1999-07-23
    • Rodrigo F. ChuaquiKristina A. ColeLance A. LiottaMichael R. Emmert-Buck
    • Rodrigo F. ChuaquiKristina A. ColeLance A. LiottaMichael R. Emmert-Buck
    • C12Q1/68
    • C12Q1/6886C12Q2600/158
    • A novel gene, PB39, that is up-regulated, or over-expressed, in prostate cancer has been identified. The gene has been identified by means of its cDNA obtained by reverse transcription of the corresponding mRNA. Microdissection of prostate glands that had been surgically removed from prostate cancer patients revealed a novel up-regulated transcript in an aggressive prostate carcinoma. Differential analysis for the presence of this gene was carried out from the same glands by comparing transcription in microdissected normal prostatic epithelium versus that in microdissected invasive tumor. The transcript was over-expressed in 5 of 10 prostate carcinomas examined. A variant transcript was over-expressed in 4 of 4 prostate carcinomas, and was found in 1 of 4 normal samples. The invention provides a purified and isolated nucleic acid that includes the sequence of PB39 or its complement, the sequence of a variant of PB39 or its complement, and a primer or probe, that includes a sequence that is a fragment of these sequences. Additionally, the polypeptide encoded by these genes, an antibody to the polypeptide, and methods of detection of PB39 or its gene product are provided.
    • 已经鉴定出在前列腺癌中上调或过度表达的新基因PB39。 该基因已通过其相应mRNA的逆转录获得的cDNA鉴定。 从前列腺癌患者手术切除的前列腺的显微解剖显示在侵袭性前列腺癌中有一种新的上调的转录物。 通过比较显微解剖正常前列腺上皮中的转录与微切割侵袭性肿瘤中的转录,从相同腺体进行差异分析。 在检查的10个前列腺癌中的5个中,转录物过表达。 在4个前列腺癌中的4个中,变体转录物过表达,并且在4个正常样品中的1个中发现。 本发明提供了纯化和分离的核酸,其包括PB39或其互补序列,PB39或其互补序列变体的序列,以及引物或探针,其包括作为这些序列的片段的序列。 另外,提供了由这些基因编码的多肽,多肽的抗体,以及检测PB39或其基因产物的方法。
    • 8. 发明授权
    • Hydrogel nanoparticle based immunoassay
    • 基于水凝胶纳米颗粒的免疫测定
    • US09012240B2
    • 2015-04-21
    • US13061507
    • 2009-08-26
    • Lance A. LiottaAlessandra LuchiniEmanuel F. PetricoinVirginia Espina
    • Lance A. LiottaAlessandra LuchiniEmanuel F. PetricoinVirginia Espina
    • G01N33/549G01N33/53G01N33/544G01N33/558G01N33/52G01N33/543
    • G01N33/521G01N33/54333G01N33/54346
    • An immunoassay device incorporating porous polymeric capture nanoparticles within either the sample collection vessel or pre-impregnated into a porous substratum within fluid flow path of the analytical device is presented. This incorporation of capture particles within the immunoassay device improves sensitivity while removing the requirement for pre-processing of samples prior to loading the immunoassay device. A preferred embodiment is coreshell bait containing capture nanoparticles which perform three functions in one step, in solution: a) molecular size sieving, b) target analyte sequestration and concentration, and c) protection from degradation. The polymeric matrix of the capture particles may be made of co-polymeric materials having a structural monomer and an affinity monomer, the affinity monomer having properties that attract the analyte to the capture particle. This device is useful for point of care diagnostic assays for biomedical applications and as field deployable assays for environmental, pathogen and chemical or biological threat identification.
    • 提供了在分析装置的流体流动路径内将多孔聚合物捕获纳米颗粒结合到样品采集容器中或预浸渍到多孔基质内的免疫测定装置。 这种在免疫测定装置内的捕获颗粒的并入提高了灵敏度,同时在加载免疫测定装置之前消除了样品预处理的要求。 优选的实施方案是含有捕获纳米颗粒的芯壳诱饵,其在一个步骤中在溶液中进行三个功能:a)分子筛分,b)目标分析物螯合和浓缩,以及c)防止降解。 捕获颗粒的聚合物基质可以由具有结构单体和亲和单体的共聚物制成,亲和单体具有将分析物吸引到捕获颗粒的性质。 该设备可用于生物医学应用的护理点诊断分析以及环境,病原体和化学或生物威胁鉴定的现场部署测定。
    • 9. 发明授权
    • Tissue preservation and fixation method
    • 组织保存和固定方法
    • US08460859B2
    • 2013-06-11
    • US12447773
    • 2007-10-26
    • Virginia A. EspinaLance A. LiottaDavid Geho
    • Virginia A. EspinaLance A. LiottaDavid Geho
    • A01N1/00
    • G01N1/30A01N1/00
    • This invention relates, e.g., to a composition that, at room temperature, when contacted with a sample comprising phosphoproteins, can fix and stabilize cellular phosphoproteins, preserve cellular morphology, and allow the sample to be frozen to generate a cryostat frozen section suitable for molecular analysis. The composition comprises (1) a fixative that is effective to fix the phosphoproteins, and that has a sufficient water content to be soluble for a stabilizer and/or a permeability enhancing agent); (2) a stabilizer, comprising (a) a kinase inhibitor and (b) a phosphatase inhibitor and, optionally, (c) a protease (e.g., proteinase) inhibitor; and (3) a permeability enhancing agent (e.g. PEG). Methods are described for preserving phosphoproteins, using such a composition. Also described are endogenous surrogate markers for monitoring protein degradation, including the loss of posttranslational modifications (such as phosphorylation), e.g. the following removal of a cell or tissue from a subject; and exogenous molecular sentinels (e.g. phosphoproteins attached to magnetic nanoparticles) that allow one to evaluate the processing history of a cellular or tissue population sample.
    • 本发明涉及例如在室温下与包含磷蛋白的样品接触时可以固定和稳定细胞磷酸蛋白的组合物,保留细胞形态,并允许样品冷冻以产生适于分子的低温恒温器冷冻切片 分析。 组合物包含(1)固定磷酸蛋白有效的固定剂,并且其具有足够的水含量可溶于稳定剂和/或渗透性增强剂); (2)稳定剂,其包含(a)激酶抑制剂和(b)磷酸酶抑制剂和任选的(c)蛋白酶(例如蛋白酶)抑制剂; 和(3)渗透性增强剂(例如PEG)。 描述了使用这种组合物来保存磷蛋白的方法。 还描述了用于监测蛋白质降解的内源替代标记,包括翻译后修饰(例如磷酸化)的丧失,例如, 以下从受试者中除去细胞或组织; 和外源性分子前哨蛋白(例如连接到磁性纳米颗粒的磷酸蛋白),其允许评价细胞或组织群体样品的加工历史。