What question did this study set out to answer?

To resolve why genetic mosaicism along Blaschko lines has been historically difficult to verify and to propose a cell-type-specific origin for these conditions.

August 6, 1999American Journal of Medical Genetics

Cytogenetic and molecular evidence for cutaneous mosaicism: The ectodermal origin of Blaschko lines

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Authors

CMCelia MossBirmingham Dental Hospital

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Implication

Theoretical analysis proposes that cutaneous mosaicism along Blaschko lines originates in epidermal cells rather than dermal fibroblasts, highlighting a model for common dermatological diseases.

Key Points

To resolve why genetic mosaicism along Blaschko lines has been historically difficult to verify and to propose a cell-type-specific origin for these conditions.
Evaluated cytogenetic and molecular data from skin disorders that manifest along Blaschko lines.
Compared biopsy methodologies and outcomes between dermal fibroblast cultures and epidermal keratinocyte isolations.
Identified that previous failures to demonstrate mosaicism likely stem from testing dermal fibroblasts instead of epidermal lineages such as keratinocytes and melanocytes.
Observed that nearly all disorders following Blaschko lines are epidermal, with mutant cells successfully localized only when keratinocytes were evaluated, as demonstrated in linear epidermolytic hyperkeratosis.

Cite This Study

Celia Moss (1999) studied this question.

synapsesocial.com/papers/6a9e617fef36093b66944884 https://doi.org/10.1002/(sici)1096-8628(19990806)85:4<330::aid-ajmg3>3.0.co;2-m

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August 6, 1999American Journal of Medical Genetics

Cytogenetic and molecular evidence for cutaneous mosaicism: The ectodermal origin of Blaschko lines

View Full Paper

Ask AI

Bookmark

Authors

CMCelia MossBirmingham Dental Hospital

Discussion

Member takes

Implication

Theoretical analysis proposes that cutaneous mosaicism along Blaschko lines originates in epidermal cells rather than dermal fibroblasts, highlighting a model for common dermatological diseases.

Key Points

To resolve why genetic mosaicism along Blaschko lines has been historically difficult to verify and to propose a cell-type-specific origin for these conditions.
Evaluated cytogenetic and molecular data from skin disorders that manifest along Blaschko lines.
Compared biopsy methodologies and outcomes between dermal fibroblast cultures and epidermal keratinocyte isolations.
Identified that previous failures to demonstrate mosaicism likely stem from testing dermal fibroblasts instead of epidermal lineages such as keratinocytes and melanocytes.
Observed that nearly all disorders following Blaschko lines are epidermal, with mutant cells successfully localized only when keratinocytes were evaluated, as demonstrated in linear epidermolytic hyperkeratosis.

Cite This Study

Celia Moss (1999) studied this question.

synapsesocial.com/papers/6a9e617fef36093b66944884 https://doi.org/10.1002/(sici)1096-8628(19990806)85:4<330::aid-ajmg3>3.0.co;2-m

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