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    • 5. 发明申请
    • HEMATOXYLIN STAINING METHOD TO ADDRESS GRADIENT STAINING
    • HEMATOXYLIN染色方法来处理梯度染色
    • WO2009148885A2
    • 2009-12-10
    • PCT/US2009/045190
    • 2009-05-26
    • VENTANA MEDICAL SYSTEMS, INC.BEER, JonathanREINHARDT, Kurt
    • BEER, JonathanREINHARDT, Kurt
    • G01N1/30
    • G01N1/30
    • The present invention is directed to any process and/or composition that substantially reduces or prevents gradient hematoxylin staining of tissue samples. Without being bound by a theory of operation, one possible explanation for observed gradient staining results is the formation of a more reactive staining species produced as a result of a pH change that occurs during the staining process. For an automated system, one disclosed embodiment comprises dispensing a hematoxylin stain onto a tissue sample, and then dispensing a bluing composition to the tissue sample to form a combined hematoxylin stain-bluing composition. The hematoxylin stain-bluing composition is then mixed, such as by agitation, on the slide sufficiently to reduce or eliminate gradient staining. Other approaches also can be employed, either alone or in combination with thoroughly mixing the hematoxylin stain-bluing composition on the slide. For example, the method may comprise treating the sample with process solutions, such as wash solutions, having a pH at or about that of the hematoxylin stain, such as a pH of from about 1 to about 6, more typically from about 2 to about 3.
    • 本发明涉及基本上减少或防止组织样品的梯度苏木精染色的任何方法和/或组合物。 不受操作理论约束,观察到的梯度染色结果的一个可能的解释是由于在染色过程中发生的pH变化而产生的更具反应性的染色物质的形成。 对于自动化系统,一个公开的实施方案包括将苏木精染色剂分散到组织样品上,然后将蓝色组合物分配到组织样品中以形成组合的苏木精染发剂组合物。 然后将苏木精染色剂组合物例如通过搅拌混合,充分放在载玻片上以减少或消除梯度染色。 也可以单独使用其它方法,或将沙门氏染色组合物充分混合在载玻片上。 例如,该方法可以包括用具有或约为苏木精染色剂的pH的处理溶液(例如洗涤溶液)处理样品,例如约1至约6,更典型地约2至约6的pH 3。