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Treatment of actinic keratosis through inhibition of cyclooxygenase-2: Potential mechanism of action of diclofenac sodium 3% in hyaluronic acid 2.5.


ABSTRACT: Cyclooxygenase-2 (COX-2) and its metabolic product prostaglandin E2 (PGE2 ) are induced in response to growth factors, inflammatory cytokines, tumor promoters, activated oncogenes, and, in the skin, ultraviolet (UV) radiation. Accumulating evidence suggests a role for the COX-2/PGE2 pathway in tumorigenesis in various tissue types including cutaneous squamous cell carcinoma. There is also strong evidence for a role in the development of actinic keratoses (AKs) - common dysplastic lesions of the skin associated with UV radiation overexposure - considered as part of a continuum with skin cancer. Non-steroidal anti-inflammatory drugs (NSAIDs) exert their anti-inflammatory, analgesic, and antipyretic effects by reversibly or irreversibly acetylating COX isoforms, inhibiting downstream prostaglandins, and may have a chemopreventive role in malignancies, including skin cancer. Topical treatment of AK lesions with the NSAID diclofenac sodium 3% in combination with hyaluronic acid 2.5% has been shown to be effective and well tolerated, although the mechanism of action remains to be elucidated.

SUBMITTER: Thomas GJ 

PROVIDER: S-EPMC6767532 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature

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Treatment of actinic keratosis through inhibition of cyclooxygenase-2: Potential mechanism of action of diclofenac sodium 3% in hyaluronic acid 2.5.

Thomas Gareth J GJ   Herranz Pedro P   Cruz Susana Balta SB   Parodi Aurora A  

Dermatologic therapy 20190409 3


Cyclooxygenase-2 (COX-2) and its metabolic product prostaglandin E<sub>2</sub> (PGE<sub>2</sub> ) are induced in response to growth factors, inflammatory cytokines, tumor promoters, activated oncogenes, and, in the skin, ultraviolet (UV) radiation. Accumulating evidence suggests a role for the COX-2/PGE<sub>2</sub> pathway in tumorigenesis in various tissue types including cutaneous squamous cell carcinoma. There is also strong evidence for a role in the development of actinic keratoses (AKs) -  ...[more]

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