ck7和 ck20： 是在肠上皮细胞中表达的细胞角蛋白。ck7和ck20的不同表达模式常用于鉴别结直肠腺癌。大多数结直肠癌呈 ck7阴性、ck20阳性，所以它们是较好的生物标志物组合。

2024年8月21日 · CK20是一种分子量为46kDa的1型（酸性）细胞角蛋白，主要标记胃肠道上皮、移行上皮和Merkel细胞。 细胞角蛋白作为一种中间丝，存在于所有上皮细胞及部分非上皮细胞。

Keratin 20, often abbreviated CK20, is a protein that in humans is encoded by the KRT20 gene. [5] [6] [7] Keratin 20 is a type I cytokeratin. It is a major cellular protein of mature enterocytes and goblet cells and is specifically found in the gastric and intestinal mucosa. [8]

Combined analysis of cytokeratin 7 (CK7) and cytokeratin 20 (CK20) is often used for assessing the origin of metastatic cancer. To evaluate the diagnostic utility of CK7 and CK20, tissue microarrays containing 15,424 samples from 120 different tumor types and subtypes and 608 samples of 76 different …

Cytokeratin 20 (CK20) is a protein made by epithelial cells in the colon and urinary tract. It is also made by Merkle cells in the skin.

CK20（重组人细胞角蛋白）：用于胃肠道腺癌、卵巢黏液性肿瘤、皮肤Merkel细胞癌诊断。 CD56： 神经细胞黏附分子，主要分布于神经外胚层来源细胞，常用于星型细胞瘤、神经母胞瘤、神经内分泌肿瘤诊断，也是NK细胞瘤的重要标志，也标记小细胞肺癌。

細胞角質蛋白 20 (ck20) 是一種由 上皮細胞 在結腸和尿道中。 它也是由皮膚中的默克爾細胞產生的。 這種類型的蛋白質也是由大多數 良性 （非癌性）和 惡性 （癌性）腫瘤始於結腸和泌尿道，以及一種稱為皮膚癌的腫瘤 默克爾細胞癌。

别名：Cytokeratin 20 (CK20, K20) 概述： 分子量为46kD。部分胃、几乎全部肠道腺癌(+)、尿路上皮细胞癌可(+)、 Merkel细胞癌等(+)，需与CK7参照。 信号定位：胞质. 在病理学中的应用：

Lung cancer is one of the most common malignant tumors harmful to human health. Cytokeratin (CK) is highly conserved and differentiated related to the proliferation and differentiation of epithelial cells. The aim of the study was to explore expressions of CK20 and CK7 and corresponding prognostic values in patients with lung cancer.

Cytokeratin 20 (CK20) is a type I acidic low molecular weight cytokeratin that is found in normal tissues of the stomach, intestine, urothelium, and in Merkel cells. It is also present in various types of adenocarcinomas, mucinous tumors of the ovary, and urothelial carcinoma.