The importance of new therapeutic targets for neutrophil inflammation regulation in case of broncho-obstructive pulmonary diseases

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Abstract

Search for effective therapeutic targets to control neutrophilic inflammation in chronic obstructive pulmonary disease (COPD) and bronchial asthma (BA) is an urgent task of the research.

The aim: to evaluate the importance of P-selectin and siglec-9 in regulation of neutrophilic inflammation taking place in broncho-obstructive pulmonary diseases.

Material and methods. A study of patients suffering from broncho-obstructive diseases was made in 3 groups: group I – patients with BA of mixed genesis (n = 44), group II – patients with COPD (n = 36), control group (n = 30). Clinical, spirometric parameters and immunological markers were assessed using enzyme immunoassay (P-selectin, siglec-9, interleukins 4 and 8, tumor necrosis factor-alpha, interferon gamma).

Results. Median values of P-selectin in case of mixed BA and COPD were at the level of 60.48 (41.48– 147.17) and 91.17 (53.72–135.60) pg/ml, respectively, that had statistically significant differences from the control group, where this index was 47.67 (40.34–65.98) pg/ml. The level of P-selectin in BA and COPD groups did not differ significantly. Siglec-9 value was very low in all groups, but 15 patients were positive for this marker. Mainly they were patients with mixed BA (n = 11). Multivariate cluster analysis, including the main phenotypic signs of diseases (age, smoking status, body mass index) and levels of P-selectin, Siglec-9, interleukin 4, tumor necrosis factor-alpha, interferon gamma, showed that the most consistent features for clustering were smoking, age, body mass index, concentrations of P-selectin, interferon gamma and interleukin 4.

Conclusion. The role of P-selectin and siglec-9 in neutrophilic inflammation regulation in patients with chronic broncho-obstructive pulmonary diseases was ambiguously estimated in the current study. In our opinion, the most convincing promising therapeutic target for controlling neutrophilic inflammation may be P-selectin.

About the authors

Vitaly I. Kupaev

Samara State Medical University of the Ministry of Healthcare of Russia

Author for correspondence.
Email: vk1964sam@rambler.ru
ORCID iD: 0000-0003-2639-0003

MD, Dr. Sci. (Medicine), professor, head of the Department of family medicine with a course of telemedicine technologies

Russian Federation, Samara

Alexander S. Shagurov

Samara State Medical University of the Ministry of Healthcare of Russia

Email: ashagurov@yandex.ru
ORCID iD: 0000-0001-6508-3095

MD, postgraduate student of the Department of family medicine with a course in telemedicine technologies

Russian Federation, Samara

Larisa V. Limareva

Samara State Medical University of the Ministry of Healthcare of Russia

Email: l.v.limareva@samsmu.ru
ORCID iD: 0000-0003-4529-5896

MD, Dr. Sci. (Biology), associate professor, professor of the Department of general and clinical microbiology, immunology and allergology

Russian Federation, Samara

Ksenia M. Tkachenko

V.D. Seredavin Samara Regional Clinical Hospital

Email: Ksenya2009@list.ru
ORCID iD: 0009-0006-7433-6609

MD, pulmonologist 

Russian Federation, Samara

Anna P. Kuritsyna

Samara State Medical University of the Ministry of Healthcare of Russia

Email: a.p.kuricyna@samsmu.ru
ORCID iD: 0000-0003-2799-7632

MD, specialist at the Department of human metagenomics of Scientific and Educational Professional Center for Genetic and Laboratory Technologies

Russian Federation, Samara

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Supplementary files

Supplementary Files
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2. Fig 1. Median P-selectin (SELP) value in the comparison groups

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3. Fig. 2. Cluster analysis of the studied patients with chronic obstructive pulmonary disease and bronchial asthma

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