Human T cell responses to recombinant mite antigens of Dermatophagoides farinae

We studied T cell responses to four glutathione S transferase (GST)‐fused mite antigens prepared in our laboratory using peripheral blood lymphocytes from mite‐sensitive patients with bronchial asthma. Of the four recombinant antigens, purified GST‐Mag3 had the strongest ability to cause patients�...

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Veröffentlicht in:Clinical and experimental immunology 1997-05, Vol.108 (2), p.284-288
Hauptverfasser: FUJII, S., ONO, K., SHIGETA, S., JYO, T., YAMASHITA, U.
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container_end_page 288
container_issue 2
container_start_page 284
container_title Clinical and experimental immunology
container_volume 108
creator FUJII, S.
ONO, K.
SHIGETA, S.
JYO, T.
YAMASHITA, U.
description We studied T cell responses to four glutathione S transferase (GST)‐fused mite antigens prepared in our laboratory using peripheral blood lymphocytes from mite‐sensitive patients with bronchial asthma. Of the four recombinant antigens, purified GST‐Mag3 had the strongest ability to cause patients' lymphocytes to proliferate, and its potency was almost comparable to that of crude mite bodies (Dfb) and faeces (Dff) antigens and a purified major antigen, Der f 2. The responder lymphocytes were mainly T cells, because the proliferative response was depleted by the treatment of lymphocytes with anti‐CD3 antibody and complement, but not with anti‐CD20 antibody and complement. The responsiveness of lymphocytes to GST‐Mag3 correlated with that to Der f 2, but GST‐Mag3 displayed slightly higher activity to stimulate lymphocytes than Der f 2. Simultaneously, the levels of Dff‐ and GST‐Mag3‐specific IgE antibodies correlated with the responsiveness of lymphocytes to GST‐Mag3. These results suggest that Mag3 is a new valuable antigen for the response of T cell proliferation in mite‐sensitive patients.
doi_str_mv 10.1046/j.1365-2249.1997.3431244.x
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source MEDLINE; Oxford University Press Journals All Titles (1996-Current); EZB-FREE-00999 freely available EZB journals; PubMed Central; Alma/SFX Local Collection
subjects Allergens - genetics
Allergens - immunology
Allergic diseases
Animals
Antibody Specificity
Antigens, Dermatophagoides
Asthma - immunology
Biological and medical sciences
Dermatophagoides farinae
Glutathione Transferase - genetics
Glutathione Transferase - immunology
Glycoproteins - genetics
Glycoproteins - immunology
GST‐fused protein
Humans
Immunoglobulin E - metabolism
Immunoglobulin G - metabolism
Immunopathology
Lymphocyte Activation
Medical sciences
Mites - genetics
Mites - immunology
Original
recombinant antigen
Recombinant Fusion Proteins - immunology
Respiratory and ent allergic diseases
T cell response
T-Lymphocytes - immunology
title Human T cell responses to recombinant mite antigens of Dermatophagoides farinae
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