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An Official Publication of the Indian Association of Oral and Maxillofacial Pathologists


 
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Year : 2015  |  Volume : 19  |  Issue : 1  |  Page : 64-68
Loricrin - an overview


Department of Oral Pathology and Microbiology, Thai Moogambigai Dental College and Hospital, Chennai, Tamil Nadu, India

Correspondence Address:
Dr. S Nithya
Department of Oral Pathology and Microbiology, Thai Moogambigai Dental College and Hospital, Golden George Nagar, Mogappair, Chennai 600 107, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0973-029X.157204

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Loricrin is a terminally differentiating structural protein comprising more than 70% of the cornified envelope. It contributes to the protective barrier function of the stratum corneum. In vivo, loricrin is expressed in all mammalian stratified epithelia with the highest levels of expression in humid tissues such as newborn epidermis, the epithelia of oral and anal mucosa, esophagus, foreskin, vagina and the epidermal parts of sweat ducts. Loricrin is not expressed in non keratinizing epithelia and its expression at these sites actually represents a defensive or protective mechanism of the body. An insight into this protein- "Loricrin" can shed light to its potential as a marker in the early stages of potentially malignant disorders like oral sub mucous fibrosis and leukoplakia. This compilation has been done by taking into account the existing literature, reviews and original studies on loricrin, a major component of the cornified cell envelope, its structure and the alterations that result due to its absence or presence of both the epidermis and the oral mucosa.


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