云克隆——細(xì)胞角蛋白篇
細(xì)胞角蛋白
細(xì)胞角蛋白(Cytokeratin, CK),一類細(xì)胞骨架蛋白,是中間絲的重要組分,存在于上皮細(xì)胞和部分非上皮細(xì)胞。細(xì)胞角蛋白作為細(xì)胞內(nèi)部支架,幫助細(xì)胞維持形狀以及抵抗外界應(yīng)力,維持組織的完整性和連續(xù)性。
細(xì)胞角蛋白分類
根據(jù)等電點,CK分為酸性I型細(xì)胞角蛋白和堿性或中性II型細(xì)胞角蛋白;而根據(jù)分子量,CK又分為低分子量角蛋白(LMWCK)和高分子量角蛋白(HMWCK)。CK1-20分組如下表,通常I型角蛋白與II型角蛋白配對,而LMWCK與HMWCK配對,形成異源二聚體。
Basic or neutral type II cytokeratins | Acidic type I cytokeratins | |
HMWCK | CK1 CK2 CK3 CK4 CK5 CK6 | CK9 CK10 CK11 CK12 CK13 CK14 CK15 CK16 CK17 |
LMWCK | CK7 CK8 | CK18 CK19 CK20 |
表1. CK1-20的分類
細(xì)胞角蛋白的表達(dá)和應(yīng)用
由于CK的表達(dá)具有組織及細(xì)胞分化特異性(表2),它是目前免疫組化中最常用的一類分子標(biāo)記物,常用于上皮組織及上皮來源的腫瘤的診斷及鑒別。
Cytokeratin | Sites |
CK4 | Non-keratinized squamous epithelium, including cornea and transitional epithelium; |
CK7 | A subgroup of glandular epithelia and their tumors; Transitional epithelium and transitional carcinoma; |
CK8 | Glandular epithelia of the digestive, respiratory and urogenital tracts, both endocrine and exocrine cells, as well as mesothelial cells; Adenocarcinomas originating from those abov |
CK10 | Keratinized stratified epithelium; Differentiated areas of highly differentiated squamous cell carcinomas; |
CK13 | Non-keratinized squamous epithelia, except cornea; |
CK14 | Basal layer of stratified and combined epithelia; |
CK18 | Glandular epithelia of the digestive, respiratory, and urogenital tracts, both endocrine and exocrine cells, as well as mesothelial cells; Adenocarcinomas originating from those above |
CK19 | Glandular-type epithelia; Carcinomas; Does not react with hepatocytes and hepatocellular carcinoma; |
CK20 | Glandular-type epithelia. Signet ring/round clear cells; GI stromal tumor (Krukenberg) |
表2. CK的表達(dá)分布
云克隆精品細(xì)胞角蛋白檢測產(chǎn)品
細(xì)胞角蛋白7
產(chǎn)品信息
產(chǎn)品貨號:PAA556Hu01
抗體類別:多克隆抗體
亞細(xì)胞定位:胞質(zhì)
IHC數(shù)據(jù):
人乳腺癌組織CK7染色,胞質(zhì)陽性
人肝癌組織CK7染色,胞質(zhì)陽性
細(xì)胞角蛋白16
產(chǎn)品貨號:PAA516Hu01
抗體類別:多克隆抗體
細(xì)胞角蛋白17
產(chǎn)品信息
產(chǎn)品貨號:MAB822Hu24
抗體類別:單克隆抗體
克隆號:C1
產(chǎn)品貨號:MAB822Hu22
抗體類別:單克隆抗體
克隆號:C11
人肺癌組織CK17染色,胞質(zhì)陽性
人子宮內(nèi)膜癌組織CK17染色,胞質(zhì)陽性
細(xì)胞角蛋白19
產(chǎn)品信息
產(chǎn)品貨號:MAB239Hu23
抗體類別:單克隆抗體
人甲狀腺癌組織CK19染色,胞質(zhì)陽性
人肝組織(肝膽管)CK19染色,胞質(zhì)陽性
產(chǎn)品信息
產(chǎn)品貨號:PAB239Hu01
抗體類別:多克隆抗體
亞細(xì)胞定位:胞質(zhì)
IHC數(shù)據(jù):
人乳腺癌組織CK19染色,胞質(zhì)陽性
人肺癌組織CK19染色,胞質(zhì)陽性
產(chǎn)品信息
產(chǎn)品貨號:PAB239Hu03
抗體類別:多克隆抗體
亞細(xì)胞定位:胞質(zhì)
IHC數(shù)據(jù):
人直腸癌組織CK19染色,胞質(zhì)陽性
人肝癌組織(肝膽管)CK19染色,胞質(zhì)陽性
云克隆CK相關(guān)產(chǎn)品
核心貨號 | 核心貨號 | 核心貨號 | |
CK1 | A492 | CK2 | A491 |
CK3 | A490 | CK4 | A489 |
CK5 | A488 | CK7 | A556 |
CK8 | C025 | CK9 | A549 |
CK10 | B691 | CK12 | A535 |
CK13 | B875 | CK14 | A522 |
CK15 | A517 | CK16 | A516 |
CK17 | B822 | CK18 | B231 |
CK19 | B239 | CK20 | B240 |
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