CYTOKERATINS: NOT AN EPITHELIAL ENTITY ANYMORE?

Author:

Kaur Geetpriya1,Shetty Devicharan2,Sikka Seema3,Pathak Aparna4

Affiliation:

1. Associate Professor, IDSTDental College, Meerut.

2. HOD, Department of Oral Pathology, ITS Dental College, Murad Nagar.

3. Consultant, Paradise Diagnostics.

4. Consultant, Paradise Diagnostics

Abstract

Cytokeratins are proteins of keratin-containing intermediate laments found in the intracytoplasmic cytoskeleton of epithelial cells. Cytokeratins are represented in epithelial tissue by at least 20 different polypeptides. They range in molecular weight between 40KDa and 60KDa and isoelectric pH between 4.9-7.8. The individual cytokeratin polypeptides are designated 1 to 20. Cytokeratin 1 has the highest molecular weight and highest isoelectric pH, while CK19 has the lowest molecular weight and a low isoelectric pH. Cytokeratins are divided into type I and type II subgroups. The detection of cytokeratins in neoplasms by immunohistochemistry has numerous diagnostic and investigative applications. The patterns of cytokeratin expression in the normal epithelium, as well as their altered expression in premalignant lesions and malignancies, might suggest newer diagnostic improvements for positive patient outcomes.

Publisher

World Wide Journals

Subject

Insect Science,Ecology, Evolution, Behavior and Systematics,Physical and Theoretical Chemistry,General Physics and Astronomy,General Chemical Engineering,General Physics and Astronomy,General Mathematics,Fluid Flow and Transfer Processes,General Physics and Astronomy,Mechanical Engineering,General Materials Science,Fluid Flow and Transfer Processes,General Physics and Astronomy,Mechanical Engineering,Physical and Theoretical Chemistry,General Physics and Astronomy,General Chemical Engineering,Fluid Flow and Transfer Processes,Mechanical Engineering,Condensed Matter Physics,Cellular and Molecular Neuroscience,Developmental Neuroscience,Neurology,General Medicine,Literature and Literary Theory,Linguistics and Language,Language and Linguistics

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