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    • 4. 发明申请
    • XENOGRAFT TISSUE CONTROL FOR HISTOLOGY
    • 异体组织的XENOGRAFT组织控制
    • WO2006119265A3
    • 2006-12-21
    • PCT/US2006016766
    • 2006-05-01
    • VENTANA MED SYST INCHARDY MARGARETGROGAN THOMAS MNAGLE RAY B
    • HARDY MARGARETGROGAN THOMAS MNAGLE RAY B
    • G01N33/50G01N33/567G01N33/577
    • G01N33/5005G01N1/30G01N1/312G01N2001/2893G01N2015/1018
    • An embodiment of the invention is a method of using a xenograft as a control tissue for histology, comprising staining both a patient and a xenograft-derived control sample under substantially similar staining conditions, and assessing the staining outcomes of the two to determine whether the stain was effective for the patient sample. A xenograft has never been used before in histology as a control, as far as the inventors know. The result of using a xenograft as a control is surprisingly advantageous. First, the cell lines grow and differentiate similarly to a human, taking on the general morphology of a real tissue sample. Second, because the same transformed cell line can be grown limitless times in SCID mice, the xenograft control is highly reproducible, leading to a consistent artificial control that is highly manufacturable and subject to genetic manipulation so that antigens or genetic elements may be embedded in the tissue. Another embodiment of the invention is directed generally to a method of making a tissue control substrate, comprising growing a xenograft from a mammalian transformed cell line in a host animal, removing the xenograft from the host animal, processing the xenograft thereby embedding the xenograft tissue in an embedding medium, and finally affixing the embedded xenograft sample onto a substrate. The substrate is generally a microscope slide. The xenograft control slide can then be stained side-by-side with a specimen sample in an automated slide stainer, and act as a control against which the staining quality can be compared. The xenograft control can also be used as a manual staining control. Determining whether the staining was effective for the patient specimen comprises judging the staining intensity of the xenograft control sample to determine if the expected degree and type of staining were realized in the control. If the expected type (nuclear, membranous, or cytoplasmic) and degree (0-4 scale) of staining are realized during the run, then the xenograft control indicates the staining process and reagents are working properly, and so the result in the patient specimen can be trusted. A further embodiment of the invention is a xenograft-derived control slide for histochemical use, comprising at least one xenograft control sample prepared for histological use, and a sample slide upon which the at least one xenograft control sample is affixed.
    • 本发明的一个实施方案是使用异种移植物作为组织学对照组织的方法,包括在基本相似的染色条件下对患者和异种移植物衍生的对照样品进行染色,并评估两者的染色结果以确定染色剂 对患者样本有效。 据发明人所知,异种移植物在组织学之前从未用作对照。 使用异种移植物作为对照的结果出人意料地是有利的。 首先,细胞系与人类相似地生长和分化,呈现真实组织样本的一般形态。 其次,因为相同的转化细胞系可以在SCID小鼠中无限生长,所以异种移植物对照是高度可重复的,导致一致的人工对照,其是高度可制造的且经历基因操作,使得抗原或遗传元件可以嵌入 组织。 本发明的另一个实施方案通常涉及制备组织对照底物的方法,包括在宿主动物中从哺乳动物转化的细胞系生长异种移植物,从宿主动物移除异种移植物,处理异种移植物,由此将异种移植组织包埋入 包埋介质,并最终将嵌入的异种移植物样品固定到基底上。 底物通常是显微镜载玻片。 然后可以将异种移植物对照载玻片与自动载玻片染色器中的样本样本并排染色,并作为对照来对比染色质量。 异种移植物控制也可以用作手动染色控制。 确定染色是否对患者样本有效包括判断异种移植对照样本的染色强度以确定在对照中是否实现了期望的染色程度和类型。 如果在运行过​​程中实现了期望的染色类型(核,膜或胞质)和程度(0-4标度),则异种移植物控制指示染色过程并且试剂正常工作,因此患者标本中的结果 可以信任。 本发明的另一个实施方案是用于组织化学用途的异种移植物衍生的对照载玻片,其包含至少一种为组织学使用而制备的异种移植对照样品和其上附着有至少一种异种移植对照样品的样品载玻片。