[Activation of the nuclear factor kappa B--key role in oncogenesis? Chronic hepatitis C virus infection and lymphomagenesis].
BACKGROUND
Hepatitis C virus (HCV) infection may have an etiopathogenic role in development of B-cell non-Hodgkin lymphoma (NHL). Antiapoptotic effect of the HCV may display via activation of nuclear factor kappa B (NF-kappa B) transcription factor and can lead to development of carcinoma.


OBJECTIVE
1. Activated NF-kappa B was examined in peripheral blood lymphocytes of patients with HCV infection or NHL, and HCV positive B-cell NHL. 2. NF-kappa B was detected in liver biopsies of patients with HCV positive hepatocellular carcinoma (HCC) and in lymphnodes of patients with HCV positive NHL.


METHODS
1. Fifteen patients with chronic HCV infection, 13 patients with B-cell NHL (among them 4 HCV positive) and 10 healthy subjects were examined for the activity of NF-kappa B using electrophoretic mobility shift assay (EMSA). 2. Immunohistochemistry was performed in 8 liver biopsies from HCV positive patients and 2 HCC patients (1 HCV positive and 1 HCV negative) and 2 B-cell NHL patients (1 HCV positive and 1 HCV negative).


RESULTS
1. In the HCV negative control samples there was no shift detected, but we found NF-kappa B specific oligonucleotide-protein complexes in the lymphocyte extracts from all HCV positive patients and 10/13 (76.92%) in B-cell NHL. 2. NF-kappa B was detectable in 7/8 cases in liver biopsies from HCV positive patients. Strong reaction was detected in nuclei in HCV positive HCC and NHL patients (no reaction in HCV negative biopsies).


CONCLUSIONS
NF-kappa B activation was justified in both diseases, which can connect the development of both HCV infection and B-cell NHL. This factor activation may have role in hepato- and lymphomagenesis.
Gasztonyi
Beáta
B
Pécsi Tudományegyetem, Altalános Orvostudományi Kar, I. Sz. Belgyógyászati Klinika.
Pár
Alajos
A
Kiss
Katalin
K
Kereskai
László
L
Szomor
Arpád
A
Szeberényi
József
J
Pajor
László
L
Mózsik
Gyula
G
D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D024202:Electrophoretic Mobility Shift Assay; D005260:Female; D019698:Hepatitis C, Chronic / Q000150:complications* / Q000378:metabolism / Q000473:pathology; D006801:Humans; D007150:Immunohistochemistry; D008099:Liver / Q000737:chemistry* / Q000473:pathology / Q000821:virology; D008198:Lymph Nodes / Q000737:chemistry* / Q000473:pathology / Q000821:virology; D016393:Lymphoma, B-Cell / Q000737:chemistry* / Q000473:pathology / Q000821:virology*; D008297:Male; D008875:Middle Aged; D016328:NF-kappa B / Q000032:analysis*
D016328:NF-kappa B