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C8541

Sigma-Aldrich

Monoclonal Anti-Cytokeratin Peptide 18 antibody produced in mouse

clone CY-90, ascites fluid

Synonyme(s) :

Monoclonal Anti-Cytokeratin Peptide 18

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About This Item

Numéro MDL:
Code UNSPSC :
12352203
Nomenclature NACRES :
NA.41

Source biologique

mouse

Niveau de qualité

Conjugué

unconjugated

Forme d'anticorps

ascites fluid

Type de produit anticorps

primary antibodies

Clone

CY-90, monoclonal

Contient

15 mM sodium azide

Espèces réactives

wide range

Technique(s)

indirect immunofluorescence: 1:800 using formalin-fixed, paraffin-embedded sections of human tissue
western blot: suitable

Isotype

IgG1

Conditions d'expédition

dry ice

Température de stockage

−20°C

Modification post-traductionnelle de la cible

unmodified

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Description générale

Cytokeratin 18 (45 kDa) is the primary type I keratin expressed in simple epithelial cells. Epithelial cells and their derivatives characteristically contain intermediate filaments (IFs) composed of about 20 related polypeptides with molecular weights between 40,000-69,000. Each epithelial tissue has a specific and stable pattern of expression of some of these cytokeratin subunits. Epithelium derived tumors maintain the expression of the cytokeratins found in the normal tissue of origin. Therefore, carcinomas can be identified and classified by immunocytochemical staining with antibodies that react specifically with cytokeratins.
Monoclonal Anti-Cytokeratin Peptide 18 (mouse IgG1 isotype) is derived from the hybridoma produced by the fusion of mouse myeloma cells and splenocytes from an immunized mouse. Cytokeratin 18 (CK18)/keratin 18 is a structural protein and is present in single-layer epithelia. It is located on human chromosome 12q13.

Spécificité

The antibody reacts specifically with a wide variety of simple epithelia (e.g. intestine, respiratory and urinary systems, liver, and glandular epithelia). It does not react with stratified squamous epithelia (e.g. esophagus or epidermis) or with non-epithelial cells.

Immunogène

human epidermal carcinoma A-431 and MCF-7 human breast cancer cell lines.

Application

Monoclonal Anti-Cytokeratin Peptide 18 antibody produced in mouse has been used in:
  • immunofluorescence
  • fluorescence microscopy
  • confocal fluorescence microscopy
  • immunolabelling
  • histoblots

Actions biochimiques/physiologiques

Keratins help to maintain structural integrity. They also control Fas?mediated apoptosis and regulate cell size and protein synthesis. Cytokeratin 18 (CK18) plays a major role in the development of lung cancer. It acts as a therapeutic target for non-small cell lung cancer (NSCLC). CK-18 is considered as a promising plasma biomarker to identify patients with HELLP (hemolysis, elevated liver enzymes, low platelets) syndrome.

Clause de non-responsabilité

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Matthew J Lawson et al.
Royal Society open science, 8(11), 211067-211067 (2021-11-06)
Micro-computed tomography (µCT) provides non-destructive three-dimensional (3D) imaging of soft tissue microstructures. Specific features in µCT images can be identified using correlated two-dimensional (2D) histology images allowing manual segmentation. However, this is very time-consuming and requires specialist knowledge of the
Immuno-electron microscopic localisation of caveolin 1 in human placenta
Byrne S, et al.
Immunobiology, 212(1), 39-46 (2007)
H Inada et al.
The Journal of cell biology, 155(3), 415-426 (2001-10-31)
Keratin 8 and 18 (K8/18) are the major components of intermediate filament (IF) proteins of simple or single-layered epithelia. Recent data show that normal and malignant epithelial cells deficient in K8/18 are nearly 100 times more sensitive to tumor necrosis
Detection of PrPSc in rectal biopsy and necropsy samples from sheep with experimental scrapie
Espenes A, et al.
Journal of Comparative Pathology, 134(2-3), 115-125 (2006)
Thomas Brabletz et al.
Cancer research, 64(19), 6973-6977 (2004-10-07)
The homeobox transcription factor Cdx2 specifies intestinal development and homeostasis and is considered a tumor suppressor in colorectal carcinogenesis. However, Cdx2 mutations are rarely found. Invasion of colorectal cancer is characterized by a transient loss of differentiation and nuclear accumulation

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