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ISSN 2522-9028 (Print)
ISSN 2522-9036 (Online)
DOI: https://doi.org/10.15407/fz

Fiziologichnyi Zhurnal

is a scientific journal issued by the

Bogomoletz Institute of Physiology
National Academy of Sciences of Ukraine

Editor-in-chief: V.F. Sagach

The journal was founded in 1955 as
1955 – 1977 "Fiziolohichnyi zhurnal" (ISSN 0015 – 3311)
1978 – 1993 "Fiziologicheskii zhurnal" (ISSN 0201 – 8489)
1994 – 2016 "Fiziolohichnyi zhurnal" (ISSN 0201 – 8489)
2017 – "Fiziolohichnyi zhurnal" (ISSN 2522-9028)

Fiziol. Zh. 2022; 68(6): 31-43

DISTRIBUTION OF SERINE PROTEASES IN BLOOD PLASMA AND PANCREAS IN CHRONIC PANCREATITIS AND ONCOPATHOLOGY

T.B. Synelnyk1, O.O. Kravchenko1, O.S. Kostiuk1, O.M. Savchuk1, S.A. Sukhodolia2, L.I. Ostapchenko1

  1. Taras Shevchenko National University of Kyiv, Educational and Scientific Centre Institute of Biology and Medicine, Ukraine
  2. National Pirogov Memorial Medical University of Vinnytsya, Ukraine
DOI: https://doi.org/10.15407/fz68.06.031


Abstract

The aim of our study was to evaluate the trypsin-like serine proteases (TLPs) distribution between systemic circulation and pancreatic tissue and to investigate the peculiarities of their involvement in the extracellular matrix components degradation in patients with pancreatic pathologies with electrophoretic analysis methods using. Тhe Khmelnitsky Regional Clinical Hospital patients aged 28-89 were selected for this study: 20 people with chronic pancreatitis (group CP); 20 people with pancreatic cancer (group PC); 20 conditionally healthy persons (control). Blood plasma samples and pancreatic tissue homogenates were obtained from all the patients, from which the TLPs fractions were subsequently obtained by the affinity chromatography method. The study showed that TLPs content in the blood plasma of patients with pancreatic pathologies is higher, and in tissue homogenates is lower relative to the values of the corresponding indicators in the control. Disk-electrophoresis using showed that TLPs fractions obtained from the blood plasma of patients of all studied groups contain a lot of high molecular weight (HMW) proteins, while TLPs from the pancreatic tissue homogenates of patients with pancreatic pathologies mainly consists of low molecular weight (LMW) proteins. Enzyme-electrophoresis results showed that all TLPs fractions include enzymes with fibrinogenolytic, gelatinolytic and collagenolytic activity. In plasma, the first were represented by medium molecular weight (MMW) proteins, and the last two groups included a lot of HMW proteins as well as proteins with very high molecular weight. In homogenates, fibrinogenolytic activity was characteristic for LMW proteins only, whereas gelatinases and collagenases were represented by both MMW and LMW proteins. Our results indicate the differences in the TLPs fractions components obtained from blood plasma and pancreatic tissue of patients with investigated pathologies, as well as significant distinctions in the processes of extracellular matrix remodeling under СР and РС.

Keywords: chronic pancreatitis; pancreatic cancer; trypsin- like serine proteases; electrophoresis.

Full text: (PDF, in Ukrainian)

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