[Large-cell anaplastic malignant CD30/Ki-1-positive T-type lymphoma, associated with STLV-1 virus (baboon malignant lymphoma model].
Large-cell anaplastic malignant lymphoma of T-type (T-LCAL) as an original form among human non-Hodgkin's malignant lymphomas in Updated Kiel Classification (1988) was defined. In human pathology T-LCAL presents a considerable diagnostic difficulties and is not associated with HTLV except some cutaneous forms. Comparative examination was carried out in 5 cases of baboon T-LCAL as a part of long-term investigation of the lymphoma outbreak in Sukhumi monkey stock. In tumor-bearing baboons routine morphological methods, immuno-morphological phenotyping of lymphoma cells with panel of MoAT and polyclonal antibodies to T- and B-lymphoid cell antigens and antigens of cell activation, including CD30 antigen, in cell suspension and on cryostate sections were used. STLV-provirus integration in DNA of lymphoma cells in PCR was determined. Diagnostically important morphological features of baboon and human T-LCAL include pronounced anaplasia and anisocytosis of CD30-positive large blast cells, tumour cell tendency to infiltrate sinuses and vascular walls. The presence of T-cell markers (CD2, CD3, CD4, CD8 in our cases) and antigens of cell activation (CD25, HLA-DR) were found. In DNA of baboon lymph node lymphomas (also in the cases without skin involvement) env- and tax-fragments of STLV-1 provirus were detected.
Iakovleva
L A
LA
Medical Microbiology and Hygiene Institute, Munchen, Germany.
Indzhiia
L V
LV
Chikobava
M G
MG
Demenkova
N P
NP
Klotts
I N
IN
Shettsl'
G
G
Deĭnkhardt
F
F
Lapin
B A
BA
D000818:Animals; D004195:Disease Models, Animal; D005260:Female; D017728:Lymphoma, Large-Cell, Anaplastic / Q000821:virology*; D016399:Lymphoma, T-Cell / Q000821:virology*; D008297:Male; D010215:Papio; D015303:Simian T-lymphotropic virus 1 / Q000302:isolation & purification*