open access

Vol 47, No 1 (2009)
Original paper
Submitted: 2011-12-19
Published online: 2009-05-08
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p53 immunocytochemistry and TP53 gene mutations in patients with chronic hepatitis C virus (HCV) infection.

Aldona Kasprzak, Agnieszka Adamek, Wiesława Przybyszewska, Arkadiusz Czajka, Karolina Olejniczak, Jacek Juszczyk, Wiesława Biczysko, Maciej Zabel
DOI: 10.2478/v10042-009-0003-5
·
Folia Histochem Cytobiol 2009;47(1):35-42.

open access

Vol 47, No 1 (2009)
ORIGINAL PAPERS
Submitted: 2011-12-19
Published online: 2009-05-08

Abstract

Chronic infection with hepatitis C virus (HCV) is regarded as a risk factor for hepatocellular carcinoma (HCC), mostly in patients with liver cirrhosis. Present study aimed at evaluation of cellular expression of p53 protein, genetic TP53 changes in liver samples and anti-p53 in serum of patients with chronic hepatitis C virus infection. The expression of p53 protein were analysed by immunocytochemistry in liver biopsies from adult patients with chronic, long-lasting hepatitis C. In order to detect TP53 mutations, PCR/SSCP and sequencing were performed. Antibodies against p53 in serum were determined using enzyme immunoassay (ELISA).In two out of 14 examined patients TP53 point mutations were detected in the liver samples. In the first patient, a substitution of C to T was demonstrated in position 1 of the codon 250, resulting in substitution of proline by serine. The other patient carried a substitution of C to G in position 13274 of the intron 6. The patient carrying mutation in the codon 250 demonstrated morphological traits of liver cirrhosis and had high number of p53-immunoreactive cell nuclei in tissue. None of the patients manifested elevated titres of serum anti-p53. In the liver, significant positive correlations were disclosed between expression of p53 on one hand and grading and staging on the other. A negative correlation was disclosed between cellular expression of p53 and duration time of infection. In conclusions, genetic changes in TP53 can be detected also in non-neoplastic lesions linked to chronic HCV infection.

Abstract

Chronic infection with hepatitis C virus (HCV) is regarded as a risk factor for hepatocellular carcinoma (HCC), mostly in patients with liver cirrhosis. Present study aimed at evaluation of cellular expression of p53 protein, genetic TP53 changes in liver samples and anti-p53 in serum of patients with chronic hepatitis C virus infection. The expression of p53 protein were analysed by immunocytochemistry in liver biopsies from adult patients with chronic, long-lasting hepatitis C. In order to detect TP53 mutations, PCR/SSCP and sequencing were performed. Antibodies against p53 in serum were determined using enzyme immunoassay (ELISA).In two out of 14 examined patients TP53 point mutations were detected in the liver samples. In the first patient, a substitution of C to T was demonstrated in position 1 of the codon 250, resulting in substitution of proline by serine. The other patient carried a substitution of C to G in position 13274 of the intron 6. The patient carrying mutation in the codon 250 demonstrated morphological traits of liver cirrhosis and had high number of p53-immunoreactive cell nuclei in tissue. None of the patients manifested elevated titres of serum anti-p53. In the liver, significant positive correlations were disclosed between expression of p53 on one hand and grading and staging on the other. A negative correlation was disclosed between cellular expression of p53 and duration time of infection. In conclusions, genetic changes in TP53 can be detected also in non-neoplastic lesions linked to chronic HCV infection.
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About this article
Title

p53 immunocytochemistry and TP53 gene mutations in patients with chronic hepatitis C virus (HCV) infection.

Journal

Folia Histochemica et Cytobiologica

Issue

Vol 47, No 1 (2009)

Article type

Original paper

Pages

35-42

Published online

2009-05-08

DOI

10.2478/v10042-009-0003-5

Bibliographic record

Folia Histochem Cytobiol 2009;47(1):35-42.

Authors

Aldona Kasprzak
Agnieszka Adamek
Wiesława Przybyszewska
Arkadiusz Czajka
Karolina Olejniczak
Jacek Juszczyk
Wiesława Biczysko
Maciej Zabel

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