Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1981-6-25
pubmed:abstractText
Anti-keratin polypeptide sera were obtained against the different bands of polyacrylamide gel electrophoresis of fibrous proteins of stratum corneum derived from normal human epidermis. The sera were tested by indirect immunofluorescence of immunoperoxidase techniques. It was demonstrated that antibodies against P1 and P2 polypeptides, of MW 67,000 and 62,000 daltons respectively, were directed towards cytoplasmic antigens of keratinocytes of the upper Malpighian layers, while no labelling could be detected in the basal cell layer. Anti-P3 polypeptide sera and the anti-whole keratin serum labelled the whole epidermis, including the basal cell layer. Ultrastructural immuno-labelling performed on free epidermal cells obtained after trypsinization demonstrated that receptors for anti-P1 polypeptide sera were tonofilaments. These results showed that some keratin components (P1 and P2 polypeptides) might be absent in basal cell tonofilaments. This in in favour of various differentiation stages of the keratinizing cells. Keratin polypeptide 1 could be a useful marker of keratinization. According to preliminary studies, the expression of this keratin antigens was markedly disturbed in tumors such as basal and squamous cell carcinoma, in warts and in ichthyosis.
pubmed:language
fre
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0151-9638
pubmed:author
pubmed:issnType
Print
pubmed:volume
107
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
357-64
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
[Study of normal and pathological keratinization using anti-keratin polypeptide sera (author's transl)].
pubmed:publicationType
Journal Article, English Abstract