Polymorphic light eruption and skin cancer prevalence: is one protective against the other?

Hdl Handle:
http://hdl.handle.net/10147/136768
Title:
Polymorphic light eruption and skin cancer prevalence: is one protective against the other?
Authors:
Lembo, S; Fallon, J; O'Kelly, P; Murphy, G M
Affiliation:
Department of Dermatology, Beaumont Hospital, Dublin 9, Ireland. serenalembo@yahoo.it
Citation:
Polymorphic light eruption and skin cancer prevalence: is one protective against the other? 2008, 159 (6):1342-7 Br. J. Dermatol.
Journal:
The British journal of dermatology
Issue Date:
Dec-2008
URI:
http://hdl.handle.net/10147/136768
DOI:
10.1111/j.1365-2133.2008.08734.x
PubMed ID:
18945307
Additional Links:
http://www.ncbi.nlm.nih.gov/pubmed/18945307
Abstract:
Ultraviolet (UV) radiation (UVR) interacts with chromophores in cutaneous cells with consequent antigenicity. The normal response to this is a downregulation of immune responsiveness. Failure of the immune system to downregulate and to ignore transient photoantigens in human skin results in polymorphic light eruption (PLE), the commonest of the photodermatoses. UVR initiates and promotes skin cancer (SC): UV-induced immunosuppression permits the expansion of UV-mutated clones of cells which ultimately lead to SC.; Because there is increased immune surveillance and resistance to immune suppression following UVR exposure in PLE one might expect a protective effect of PLE against SC and, conversely, a reduced risk of PLE among patients with SC.; We therefore constructed a prospective case-control study to see if this were the case. Two groups were studied: a group comprising 214 patients with SC and 210 gender- and aged-matched controls, and a group comprising 100 patients with PLE and 155 gender- and aged-matched controls. Each participant answered a questionnaire aimed at establishing personal and family history of SC and photodermatoses. Skin type and exposure to UVR were also documented.; The prevalence of PLE in people with SC was 7.5%, compared with 21.4% for controls (P<0.001). The prevalence of SC in patients with PLE was 4% compared with 7.1% for controls.; Our results show (i) strong evidence of reduced PLE in patients with SC, and (ii) a trend for reduced SC in patients with PLE. The immunological basis of PLE may therefore confer protection against SC.
Item Type:
Article
Language:
en
MeSH:
Adolescent; Adult; Aged; Aged, 80 and over; Case-Control Studies; Female; Humans; Male; Middle Aged; Photosensitivity Disorders; Prevalence; Prospective Studies; Questionnaires; Skin Neoplasms; Young Adult
ISSN:
1365-2133

Full metadata record

DC FieldValue Language
dc.contributor.authorLembo, Sen
dc.contributor.authorFallon, Jen
dc.contributor.authorO'Kelly, Pen
dc.contributor.authorMurphy, G Men
dc.date.accessioned2011-07-25T08:33:08Z-
dc.date.available2011-07-25T08:33:08Z-
dc.date.issued2008-12-
dc.identifier.citationPolymorphic light eruption and skin cancer prevalence: is one protective against the other? 2008, 159 (6):1342-7 Br. J. Dermatol.en
dc.identifier.issn1365-2133-
dc.identifier.pmid18945307-
dc.identifier.doi10.1111/j.1365-2133.2008.08734.x-
dc.identifier.urihttp://hdl.handle.net/10147/136768-
dc.description.abstractUltraviolet (UV) radiation (UVR) interacts with chromophores in cutaneous cells with consequent antigenicity. The normal response to this is a downregulation of immune responsiveness. Failure of the immune system to downregulate and to ignore transient photoantigens in human skin results in polymorphic light eruption (PLE), the commonest of the photodermatoses. UVR initiates and promotes skin cancer (SC): UV-induced immunosuppression permits the expansion of UV-mutated clones of cells which ultimately lead to SC.-
dc.description.abstractBecause there is increased immune surveillance and resistance to immune suppression following UVR exposure in PLE one might expect a protective effect of PLE against SC and, conversely, a reduced risk of PLE among patients with SC.-
dc.description.abstractWe therefore constructed a prospective case-control study to see if this were the case. Two groups were studied: a group comprising 214 patients with SC and 210 gender- and aged-matched controls, and a group comprising 100 patients with PLE and 155 gender- and aged-matched controls. Each participant answered a questionnaire aimed at establishing personal and family history of SC and photodermatoses. Skin type and exposure to UVR were also documented.-
dc.description.abstractThe prevalence of PLE in people with SC was 7.5%, compared with 21.4% for controls (P<0.001). The prevalence of SC in patients with PLE was 4% compared with 7.1% for controls.-
dc.description.abstractOur results show (i) strong evidence of reduced PLE in patients with SC, and (ii) a trend for reduced SC in patients with PLE. The immunological basis of PLE may therefore confer protection against SC.-
dc.language.isoenen
dc.relation.urlhttp://www.ncbi.nlm.nih.gov/pubmed/18945307en
dc.subject.meshAdolescent-
dc.subject.meshAdult-
dc.subject.meshAged-
dc.subject.meshAged, 80 and over-
dc.subject.meshCase-Control Studies-
dc.subject.meshFemale-
dc.subject.meshHumans-
dc.subject.meshMale-
dc.subject.meshMiddle Aged-
dc.subject.meshPhotosensitivity Disorders-
dc.subject.meshPrevalence-
dc.subject.meshProspective Studies-
dc.subject.meshQuestionnaires-
dc.subject.meshSkin Neoplasms-
dc.subject.meshYoung Adult-
dc.titlePolymorphic light eruption and skin cancer prevalence: is one protective against the other?en
dc.typeArticleen
dc.contributor.departmentDepartment of Dermatology, Beaumont Hospital, Dublin 9, Ireland. serenalembo@yahoo.iten
dc.identifier.journalThe British journal of dermatologyen
dc.description.provinceLeinster-

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