home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
The Arsenal Files 6
/
The Arsenal Files 6 (Arsenal Computer).ISO
/
health
/
med9603.zip
/
M9630675.TXT
< prev
next >
Wrap
Text File
|
1996-02-27
|
3KB
|
46 lines
Document 0675
DOCN M9630675
TI Epidermal expression of 65 and 72 kd heat shock proteins in psoriasis
and AIDS-associated psoriasiform dermatitis.
DT 9603
AU Puig L; Fernandez-Figueras MT; Ferrandiz C; Ribera M; de Moragas JM;
Department of Dermatology, Hospital de la Santa Creu i Sant Pau,;
Barcelona, Spain.
SO J Am Acad Dermatol. 1995 Dec;33(6):985-9. Unique Identifier : AIDSLINE
MED/96095113
AB BACKGROUND: Psoriasiform dermatitis is common in patients with AIDS. The
expression of heat shock proteins by keratinocytes has been postulated
to be a significant factor in the physiopathology of psoriasis and might
be subject to modulation in HIV-infected patients. OBJECTIVE: We sought
to evaluate the epidermal expression of 65 and 72 kd heat shock proteins
(HSPs) in lesions of AIDS-associated psoriasiform dermatitis (AIDS-PD)
and compare it with that in psoriasis vulgaris and seborrheic dermatitis
in patients not infected with HIV. METHODS: Sections from
paraffin-embedded blocks of biopsy specimens of AIDS-PD (eight cases),
psoriasis vulgaris (eight cases), seborrheic dermatitis (four cases),
and normal skin (four cases) in non-HIV-infected patients were
immunohistochemically stained by the avidin-biotin-peroxidase method and
two monoclonal antibodies directed against the major 65 kd HSP antigen
(HSP65) and against 70/72 kd HSP. The intensity, distribution, and
cellular pattern of the epidermal stain were graded and assessed
blindly. RESULTS: The epidermal expression of HSP65 in biopsy specimens
from AIDS-PD lesions was irregular, with less intensity and less
tendency to perinuclear arrangement than in psoriasis or seborrheic
dermatitis not associated with AIDS. The expression of HSP72 was also
less intense and more uniform in AIDS-PD. CONCLUSION: The altered
interplay of T cells and keratinocytes in a situation of immune
derangement such as AIDS might account for the differences observed in
the expression of HSP65 and HSP72 by keratinocytes in psoriasis and
AIDS-PD.
DE Acquired Immunodeficiency Syndrome/*COMPLICATIONS/METABOLISM/ PATHOLOGY
Biopsy Chaperonins/*METABOLISM Comparative Study
Dermatitis/ETIOLOGY/*METABOLISM/PATHOLOGY Dermatitis,
Seborrheic/METABOLISM/PATHOLOGY Epidermis/*METABOLISM/PATHOLOGY
Heat-Shock Proteins/*METABOLISM Human *HIV-1 Immunohistochemistry
Psoriasis/ETIOLOGY/*METABOLISM/PATHOLOGY Staining/METHODS Support,
Non-U.S. Gov't JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).