Olga N. Savelieva

Renal cell carcinoma (RCC) remains a major challenge in modern oncological urology, owing to its high heterogeneity, latent clinical course, and intrinsic resistance to chemotherapy and radiotherapy. In recent decades, the paradigm of carcinogenesis research has shifted from a primary focus on protein-coding genes alone to a broader investigation of the non-coding part of the transcriptome. Within this framework, long non-coding RNAs (lncRNAs) have emerged as fundamental regulators of cellular homeostasis. Accumulating evidence indicates that lncRNAs are not merely ‘transcriptional noise’ but components of intricate regulatory networks governing epigenetic, transcriptional, and post-transcriptional processes. Here, we present a comprehensive systematic review of the current literature addressing the role of lncRNA in the molecular pathogenesis of RCC. We discuss the roles of these molecules in key oncogenic signaling pathways, including PI3K/AKT/mTOR, Wnt/β-catenin, and Notch, and their contributions to tumor metabolic plasticity. The paper summarizes data on the link between lncRNAs and novel forms of regulated cell death—ferroptosis, cuproptosis, and disulphidosis. Particular attention is paid to their role in mediating resistance to tyrosine kinase inhibitors and their potential utility as highly specific biomarkers. Collectively, this review provides an updated perspective on the contribution of lncRNAs to RCC pathogenesis and outlines strategic directions for future research to support the development of more precise approaches in personalized oncology.

The poultry industry, a globally fast growing agricultural sector, provides affordable animal protein due to high efficiency. Gallus gallus domesticus are the most common domestic birds. Hybrid chicken breeds (crosses) are widely used to achieve high productivity. Maintaining industry competitiveness requires constant genetic selection of parent stock to improve performance traits. Genetic studies, which are essential in modern breeding programs, help identify genome variants linked to economically important traits and preserve population health. Next-generation sequencing (NGS) has identified millions of single nucleotide polymorphisms (SNPs) and insertions/deletions (INDELs), enabling detection of genome-wide regions associated with selection traits. Recent studies have pinpointed such regions using broiler lines, laying hen lines, or pooled genomic data. This review discusses advances in chicken genomic and transcriptomic research focused on traits enhancing meat breed performance and reproductive abilities. Special attention is given to transcriptome studies revealing regulatory mechanisms and key signaling pathways involved in artificial molting, as well as metagenome studies investigating resistance to infectious diseases and climate adaptation. Finally, a dedicated section highlights CRISPR/Cas genomic editing techniques for targeted genome modification in chicken genomics.

Asthma is a common complex disease with susceptibility defined through an interplay of genetic and environmental factors. Responsiveness to asthma treatment varies between individuals and is largely determined by genetic variability. The polygenic score (PGS) approach enables an individual risk of asthma and respective response to drug therapy. PGS models could help to predict the individual risk of asthma using 26 SNPs of drug pathway genes involved in the metabolism of glucocorticosteroids (GCS), and beta-2-agonists, antihistamines, and antileukotriene drugs associated with the response to asthma treatment within GWAS were built. For PGS, summary statistics from the Trans-National Asthma Genetic Consortium GWAS meta-analysis, and genotype data for 882 individuals with asthma/controls from the Volga-Ural region, were used. The study group was comprised of Russian, Tatar, Bashkir, and mixed ethnicity individuals with asthma (N = 378) aged 2–18 years. and individuals without features of atopic disease (N = 504) aged 4–67 years from the Volga-Ural region. The DNA samples for the study were collected from 2000 to 2021. The drug pathway genes’ PGS revealed a higher odds for childhood asthma risk (p = 2.41 × 10⁻¹²). The receiver operating characteristic (ROC) analysis showed an Area Under the Curve, AUC = 0.63. The AUC of average significance for moderate-to-severe and severe asthma was observed (p = 5.7 × 10⁻⁹, AUC = 0.64). Asthma drug response pathway gene variant PGS models may contribute to the development of modern approaches to optimise asthma diagnostics and treatment.

The interaction of genetic, epigenetic and environmental factors underlies the pathogenesis of allergic diseases. Allergic rhinitis and atopic bronchial asthma are closely related and often concurrent respiratory allergic diseases. The chronic recurrent course of these diseases establishes the importance of further and more profound studies of the mechanisms underlying the development of these pathologies. Histamine is one of the most significant inflammatory mediators secreted during allergic reactions. The aim of the research was to study the role of polymorphic variants of AOC1, HRH2, HRH3, ALDH7A1, ADCYAP1, HNMT, PSAP, SCG3, genes involved in the histamine metabolism in the development of different endophenotypes of the allergic airway diseases in individuals living in the Republic of Bashkortostan. DNA samples of 358 individuals with allergic diseases of the respiratory tract of different ethnicity (Russians – 165, Tatars – 143, Bashkirs – 50) and 200 controls with unweighted heredity in allergic diseases (Russians – 75, Tatars – 83, Bashkirs – 42). Genotyping of polymorphic variants was performed by real-time PCR and PCR-RFLP analysis. It was revealed that the rs104979793*CC genotype and the rs104979793*C allele of the AOC1 gene were associated with allergic diseases of the respiratory tract and asthma with concomitant allergic rhinitis in Russians. A significant increase of total IgE level was revealed in Russian patients with allergic diseases of the respiratory tract with the rs1049793*CC genotype of the AOC1 gene compared to carriers of the rs1049793*CG and rs1049793*GG genotypes. The association of the C allele of the rs17525472 polymorphic variant localized near the SCG3 gene with allergic rhinitis in Russians was established. The results revealed that AOC1 and SCG3 genes involved in the metabolism of histamine are related to the development of different endophenotypes of airway diseases in children.

The interaction of genetic, epigenetic, and environmental factors underlies the pathogenesis of allergic diseases. Allergic rhinitis and atopic bronchial asthma are closely related and often concurrent allergic airway diseases. The chronic recurrent course of these diseases establishes the importance of further and more profound studies of the mechanisms underlying the development of these pathologies. Histamine is one of the most significant inflammatory mediators secreted during allergic reactions. The aim of the research was to study the role of polymorphic variants of the AOC1, HRH2, HRH3, ALDH7A1, ADCYAP1, HNMT, PSAP, and SCG3 genes involved in the histamine metabolism in the development of different endophenotypes of the allergic airway diseases in individuals living in the Republic of Bashkortostan. DNA samples of 358 individuals with allergic airway diseases of different ethnicity (Russians—165, Tatars—143, Bashkirs—50) and 200 controls with unweighted heredity in allergic diseases (Russians—75, Tatars—83, Bashkirs—42). Genotyping of polymorphic variants was performed by real-time PCR and PCR-RFLP analysis. It was revealed that the rs104979793*CC genotype and the rs104979793*C allele of the AOC1 gene were associated with allergic airway diseases and asthma with concomitant allergic rhinitis in Russians. A significant increase in total IgE level was revealed in Russian patients with allergic airway diseases with the rs1049793*CC genotype of the AOC1 gene compared to carriers of the rs1049793*CG and rs1049793*GG genotypes. The association of the C allele of the rs17525472 polymorphic variant localized near the SCG3 gene with allergic rhinitis in Russians was established. The results revealed that AOC1 and SCG3 genes involved in the metabolism of histamine are related to the development of different endophenotypes of allergic airway tract diseases in children.

Asthma is a common multifactorial disease characterized by chronic inflammation of the respiratory tract. Insufficient control of asthma symptoms significantly reduces the patient’s quality of life, leads to the risk for more severe disease and disability. It is important to research the role of gene polymorphisms encoding proteins involved in various stages of histamine metabolism, which is one of the known mediators of allergic reactions.The aim of the study was to investigate histamine receptor gene polymorphisms (HRH1, HRH2, HRH3, HRH4) in children with asthma and the control group.Methods. The study of HRH1 (rs901865), HRH2 (rs2067474), HRH3 (rs3787429), HRH4 (rs11665084) gene polymorphisms in asthma patients and healthy individuals aged 2 - 17 years of different ethnicities living in the Republic of Bashkortostan was carried out. Genotyping of polymorphisms was performed by polymerase chain reaction with fluorescence detection.Results. In Tatars, rs901865*CT genotype and rs901865*T allele of HRH1 gene were associated with asthma development and decrease in spirometry measures (MEF25). In Tatars, a statistically significant model of the interaction between HRH1 (rs901865), HRH3 (rs3787429), and HRH4 (rs11665084) gene polymorphisms that leads to the risk of asthma was established.Conclusion. The results of this study reveal certain aspects of asthma pathogenesis and suggest the possible involvement of polymorphic variants of histamine receptors genes HRH1, HRH3, HRH4 in the development of asthma.

Роль полиморфных вариантов генов аргиназ ( ARG1, ARG2 ), участвующих в метаболизме бета-2-агонистов, в развитии и течении бронхиальной астмы

Bronchial asthma (BA) is a common severe and disabling multifactorial disease. Up to 50–60% of differences in sensitivity to therapy in patients with BA is due to genetic variability. We...