Abstract:
:Primary cultures of human keratinocytes form a multilayered tissue. By incubating the tissue cultures in Ca2(+)-free medium the differentiated cell layers can be stripped off leaving a basal cell monolayer. We have developed a method for high-frequency transfection of these epidermal basal cells with genes inserted into Epstein-Barr virus-based expression vectors. Using the Escherichia coli lac z gene as a marker gene, the transient and long-term expression and the fate of the transfected cells were studied. During regeneration of the multilayered tissue most of the transfected basal cells enlarge and undergo differentiation, but a minor population remains as basal cells. Incubation with the tumor promotor 12-O-tetradecanoylphorbol-13-acetate results in an increase in the proportion of transfected keratinocytes that are small, suggesting a relative expansion of the immature cell pool.
journal_name
Exp Cell Resjournal_title
Experimental cell researchauthors
Jensen TG,Jensen PK,Nørgård JO,Bolund Ldoi
10.1016/0014-4827(90)90231-xsubject
Has Abstractpub_date
1990-08-01 00:00:00pages
163-8issue
2eissn
0014-4827issn
1090-2422journal_volume
189pub_type
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