Interleukin 4 and gamma-interferon may play a role in the histopathogenesis of peripheral T-cell lymphoma.
The first demonstration of cytokine expression in T-cell lymphoma by immunohistochemical methods is reported. Lymph node biopsy specimens were obtained from 18 patients with peripheral T-cell lymphoma. Interleukin 4 (IL-4) and gamma-interferon were each detected in 7 lymph nodes. Lymph node specimens diagnosed as angioimmunoblastic T-cell lymphoma and angiocentric lymphoma having distinctive histopathological features expressed IL-4 more frequently than other T-cell lymphomas, and all 7 patients expressing IL-4 had hypergammaglobulinemia. Lymph nodes with gamma-interferon expression showed an increase in histiocytes and/or epithelioid cells. Thus, IL-4 may play an important role in the development of hypergammaglobulinemia as well as in the growth and histopathogenesis of T-cell lymphoma, and gamma-interferon may be responsible for the development of Lennert's lesion.
Ohnishi
K
K
First Department of Internal Medicine, Nagoya University School of Medicine, Japan.
Ichikawa
A
A
Kagami
Y
Y
Nagasaka
T
T
Niwa
T
T
Hotta
T
T
Saito
H
H
D000906:Antibodies; D000911:Antibodies, Monoclonal; D015703:Antigens, CD / Q000032:analysis; D000945:Antigens, Differentiation, T-Lymphocyte / Q000032:analysis; D015704:CD4 Antigens / Q000032:analysis; D016827:CD8 Antigens; D016207:Cytokines / Q000032:analysis; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D007371:Interferon-gamma / Q000032:analysis* / Q000235:genetics; D015847:Interleukin-4 / Q000032:analysis* / Q000235:genetics; D008198:Lymph Nodes / Q000276:immunology / Q000473:pathology*; D016399:Lymphoma, T-Cell / Q000276:immunology / Q000473:pathology*; D008297:Male; D012333:RNA, Messenger / Q000032:analysis / Q000235:genetics
D000906:Antibodies; D000911:Antibodies, Monoclonal; D015703:Antigens, CD; D000945:Antigens, Differentiation, T-Lymphocyte; D015704:CD4 Antigens; D016827:CD8 Antigens; D016207:Cytokines; D012333:RNA, Messenger; D015847:Interleukin-4; D007371:Interferon-gamma