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    • 41. 发明申请
    • METHOD OF DIAGNOSING ESOPHAGEAL CANCER
    • 诊断食管癌的方法
    • US20090208514A1
    • 2009-08-20
    • US11913170
    • 2006-07-26
    • Yusuke NakamuraYataro DaigoShuichi Nakatsuru
    • Yusuke NakamuraYataro DaigoShuichi Nakatsuru
    • A61K39/395C12Q1/68G01N33/53C40B40/06A61K31/7052A61K39/00C12N5/00A61K35/12A61P35/00C07H21/02C07K16/00
    • C12Q1/6886C12Q2600/118C12Q2600/136C12Q2600/158Y10T436/25
    • In order to identify the molecules involved in esophageal carcinogenesis and those to be useful for diagnostic markers as well as targets for new drugs and immunotherapy, a cDNA microarray representing 32,256 genes was constructed to analyze the expression profiles of 19 esophageal squamous-cell carcinomas (ESCCS) purified by laser-capture microdissection. A detailed genome-wide database for sets of genes that are significantly up- or down-regulated in esophageal cancer is disclosed herein. These genes find use in the development of therapeutic drugs or immunotherapy as well as tumor markers. Additionally, genes associated with lymph-node metastasis and post-surgery recurrence are disclosed herein. Among the candidate molecular target genes, a Homo sapiens epithelial cell transforming sequence 2 oncogene (ECT2) and a cell division cycle 45, S. cerevisiae, homolog-like (CDC45L) are further characterized. Treatment of ESCC cells with small interfering RNAs (siRNAs) of ECT2 or CDC45L suppressed growth of the cancer cells. Thus, the data herein provide valuable information for identifying diagnostic systems and therapeutic target molecules for esophageal cancer. Furthermore, the present inventors have identified DKK1 as a potential biomarker for diagnosis of cancer such as lung and esophageal cancers as well as prediction of the poor prognosis of the patients with these diseases. DKK1 was specifically over-expressed in most lung and esophageal cancer tissues the present inventors examined, and was elevated in the sera of a large proportion of patients with these tumors. DKK1, combined with other tumor markers, could significantly improve the sensitivity of cancer diagnosis. Moreover, this molecule is also a likely candidate for development of therapeutic approaches such as antibody therapy.
    • 为了鉴定涉及食管癌发生的分子以及可用于诊断标志物以及新药和免疫治疗靶标的分子,构建了代表32,256个基因的cDNA微阵列,分析19例食管鳞状细胞癌(ESCCS)的表达谱 )通过激光捕获显微切割纯化。 本文公开了在食管癌中显着上调或下调的基因组的详细全基因组数据库。 这些基因可用于治疗药物或免疫治疗以及肿瘤标志物的开发。 此外,本文公开了与淋巴结转移和手术后复发相关的基因。 在候选分子靶基因中,进一步表征了人类上皮细胞转化序列2致癌基因(ECT2)和细胞分裂周期45,酿酒酵母,同系物样(CDC45L)。 用ECT2或CDC45L的小干扰RNA(siRNA)处理ESCC细胞抑制癌细胞的生长。 因此,本文的数据提供了用于鉴定诊断系统和用于食管癌的治疗靶分子的有价值的信息。 此外,本发明人鉴定了DKK1作为肺癌,食管癌等癌症诊断用潜在生物标志物,并预测了这些疾病患者的预后差。 本发明人检查的大多数肺癌和食管癌组织中DKK1被特异性过度表达,并且在大量患有这些肿瘤的患者的血清中升高。 DKK1与其他肿瘤标志物结合可显着提高癌症诊断的敏感性。 此外,该分子也是开发抗体治疗等治疗方法的可能候选者。