Linked Life Data

21048491

Source:http://linkedlifedata.com/resource/pubmed/id/21048491

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2011-1-17
pubmed:abstractText
Keratinization is a kind of cell death called terminal differentiation and includes various patterns such as epidermal keratinization (EK), trichilemmal keratinization (TK), and shadow cell differentiation (SCD), whereas these have not been comparatively investigated from a standpoint of cell death. In the present study, surgically extirpated specimens of epidermal cyst, trichilemmal cyst, and pilomatricoma (10 cases in each) were subjected to immunohistochemistry for single-strand DNA (ssDNA), gamma-H2AX, cleaved caspase-3, cleaved lamin A, caspase-14, and CD138 to compare the modes of cell death and keratinization pattern. Transitional cells in pilomatricoma were immunoreactive, although not in whole part, for ssDNA and gamma-H2AX, and negative for cleaved caspase-3 and cleaved lamin A. Epidermal and trichilemmal cyst were negative for these 4 markers, except for ssDNA or cleaved lamin A in a small number of parakeratotic cells in a few cases. The keratinizing component showed caspase-14(+)/CD138(-) in epidermal cyst, caspase-14(-)/CD138(+) in trichilemmal cyst, and caspase-14(-)/CD138(-) in pilomatricoma. These results indicate that EK, TK, and SCD have a common property of apoptosis-like programmed cell death without caspase-3 activation or nuclear fragmentation. Meanwhile, they show different characteristics one another as follows: (A), DNA double-strand breaks occur in the transitional cells of SCD but not in EK/TK; and (B), EK, TK, and SCD can be distinguished by expression pattern of caspase-14 and CD138 in the keratinizing component.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1533-0311
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
33
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
78-83
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Comparative immunohistochemical analyses on the modes of cell death/keratinization in epidermal cyst, trichilemmal cyst, and pilomatricoma.
pubmed:affiliation
Department of Pathology, Suwa Red Cross Hospital, Suwa, Japan. pathology@suwa.jrc.or.jp
pubmed:publicationType
Journal Article, Comparative Study