Abstract:
:In order to know whether effector cells are capable of recognizing the epidermal targets in pemphigus vulgaris (PV) and bullous pemphigoid (BP), non-adherent cells (NAC) of peripheral blood from 27 primary PV, 19 BP patients and 12 healthy volunteers were used in cytotoxic tests. Autologous, allogenic and murine epidermal keratinocytes as well as autologous and allogenic fibroblasts were employed as targets. Total esterase activity of serine proteinases was measured in supernatants of samples and the results obtained were compared with the data received in 51Cr-release assay. These two techniques yielded similar results. The effector cells of PV and BP patients were found to lyse the epidermal target cells without presensitization in vitro. Epidermal cells from involved and uninvolved skin of PV patients, as well as from perilesional skin of BP patients, were highly sensitive to cytotoxic effect on the part of effector cells. The NAC activity in BP was higher than in PV. On the one hand, the obtained data suggest that PV and BP patients develop autoreactive cytotoxic T lymphocytes, sensitized to pemphigus and pemphigoid antigens, respectively, and on the other hand that epidermocytes in pemphigus and pemphigoid patients turned to be more fragile compared to normal human epidermal keratinocytes. It was supposed that cell-mediated cytotoxic reactions are probably related to enhanced proteolytic activity in the site of bullous eruption.
journal_name
Autoimmunityjournal_title
Autoimmunityauthors
Grando SA,Glukhenky BT,Drannik GN,Kostromin AP,Boiko YYa,Senyuk OFdoi
10.3109/08916938908997095subject
Has Abstractpub_date
1989-01-01 00:00:00pages
247-60issue
4eissn
0891-6934issn
1607-842Xjournal_volume
3pub_type
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