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DOI: https://doi.org/10.22263/2312-4156.2025.1.79

D.A. Davydov, E.P. Shupilova, I.Y. Zherka, A.S. Petuhova, A.F. Mahilyanchik, A.S. Portyanko
Various prognostic value of proliferative activity index in primary and recurrent B-cell non-Hodgkin’s lymphomas
N.N. Alexandrov National Cancer Centre of Belarus, Minsk, Republic of Belarus

Vestnik VGMU. 2025;24(1):79-88.

Abstract.
Objectives. To determine the prognostic value of the proliferative activity index in primary and recurrent B-cell non-Hodgkin`s lymphomas.
Material and methods. 108 patients with histologically verified recurrent B-NHL were included in the study. Regression analysis was performed to assess the prognostic value of the studied factors.
Results. In 13% of cases, clinical and radiological relapse was accompanied by the detection of B-NHL nosological form different from the primary tumor. Patients with aggressive primary B-NHL and low IPA have been established to have earlier disease relapse compared to patients with high IPA. Patients with indolent primary tumors and high IPA had earlier disease recurrence than patients with low IPA.
Conclusions. High IPA in aggressive recurrent B-NHL is associated with an increased risk of disease progression by 4.8 times, death by 2.5 times. For indolent recurrent B-NHL with high IPA values, the risk of disease progression increases by 2.8 times, death by 2.5 times.
Keywords: non-Hodgkin`s lymphomas, proliferation index, relapse, clinical and morphological features, resistance.

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Submitted 14.10.2024
Accepted 11.02.2025

Information about authors:
D.A. Davydov – Candidate of Medical Sciences, head of the Laboratory of Morphology, Molecular and Cellular Biology with Experimental Medicine Group, N.N. Alexandrov National Cancer Centre of Belarus.
e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра. – Denis A. Davydov;
E.P. Shupilova – researcher of the Laboratory of Morphology, Molecular and Cellular Biology with Experimental Medicine Group, N.N. Alexandrov National Cancer Centre of Belarus.
I.Y. Zherka – Candidate of Medical Sciences, senior researcher of the Laboratory of Morphology, Molecular and Cellular Biology with Experimental Medicine Group, N.N. Alexandrov National Cancer Centre of Belarus, https://orcid.org/0000-0002-5134-3666
A.S. Petuhova – biologist of the Oncology Department of Immunomorphology and Proteomics, N.N. Alexandrov National Cancer Centre of Belarus.
 A.F. Mahilyanchik – junior researcher of the Laboratory of Morphology, Molecular and Cellular Biology with Experimental Medicine Group, N.N. Alexandrov National Cancer Centre of Belarus.
A.S. Portyanko – Doctor of medical sciences, head of the Republican Molecular Genetic Laboratory of Carcinogenesis, N.N. Alexandrov National Cancer Centre of Belarus.

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