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Omega-3 Docosahexaenoic Acid as a Promising Inducer of Ferroptosis: Dynamics of Action in Prostate and Colorectal Cancer Models
Doklady Biochemistry and Biophysics. 2025. Vol. 520. P. 25–28.
D. M. Olkhovik, M. O. Silkina, A. V. Razumovskaya, K. V. Klycheva, A. A. Fatkulin, T. A. Kulagin, S. V. Nikulin
Ferroptosis is an iron-dependent form of programmed cell death (PCD) associated with lipid membrane peroxidation. It has gained attention in cancer research because some tumor cells that are resistant to other forms of PCD are sensitive to ferroptosis. Despite the significant amount of research on ferroptosis, the list of known inducers remains limited, creating opportunities to discover new compounds with clinical potential. Recent studies have shown that long-chain polyunsaturated fatty acids, such as omega-3 docosahexaenoic acid (DHA), can act as ferroptosis inducers. This study examined the kinetics of ferroptosis in prostate and colorectal cancer cells under the influence of erastin and DHA. Differences in the kinetics and mechanisms of action were observed. Moreover, cells resistant to erastin were found to be sensitive to DHA, confirming the potential of further research into its use as an anti-cancer agent.
Nersisyan A., Frontiers in Molecular Biosciences 2026 Vol. 13 Article 1995001
Antiviral activity is commonly summarized using endpoint measures such as EC50 or EC90, yet these quantities emerge from a dynamic biological system and depend on viral replication kinetics, host-cell properties, experimental design, and the assay used to quantify infection. Infectious-virus titers, viral RNA, infected-cell fractions, viability measurements, and immune readouts capture different components of the ...
Added: October 15, 2026
Тукачев Н. В., González-Jiménez M., Ramakrishnan G. et al., Physical Chemistry Chemical Physics 2021 Vol. 23 No. 23 P. 13250–13260
Low-frequency vibrations play an essential role in biomolecular processes involving DNA such as gene expression, charge transfer, drug intercalation, and DNA–protein recognition. However, understanding the vibrational basis of these mechanisms relies on theoretical models due to the lack of experimental evidence. Here we present the low-frequency vibrational spectra of G-quadruplexes (structures formed by four strands ...
Added: October 14, 2026
Батова О. Н., Савинецкая Л. Е., Проявка С. В. et al., Nature Conservation Research. Заповедная наука 2026 Т. 11 № 4 С. 25–39
Spermophilus suslicus is a threatened species listed in Red Data Books at all levels (from regional Red Data
Books to the IUCN Red List of Threatened Species), and it currently requires special conservation activity.
Over the past 30–50 years, its range has changed from continuous to mosaic, and its population has declined
everywhere. In 2015, in Russia experimental ...
Added: October 13, 2026
Temereva E., Zoologischer Anzeiger 2026 Vol. 325 P. 182–195
Brachiopoda is a group of animals, that is still insufficiently studied at the ultrastructural level, despite the significance of ultrastructure of tissues and organs for analysing the functional morphology, reconstructing the organisation and biology of numerous extinct brachiopods, and establishing relationships among major taxa. In the present study, we provide a revised reconstruction of the ...
Added: October 11, 2026
Ekaterina D. Riumina, Klink G. V., Alekseeva E. et al., PNAS, США 2026 Vol. 123 No. 35 P. 1–20
The role of escape from the cytotoxic T cell (CTL) response in SARS-CoV-2 evolution remains controversial. Here, we study the origin and spread of SARS-CoV-2 variants whose mutations reduce presentation by the HLA class I alleles common in human populations. We find that 35% of mutations that are characteristic of the variants of concern, and ...
Added: October 2, 2026
Aly Ismailov, Poptsova M., Plos One 2026 Vol. 21 No. 9 Article e0355902
Added: October 2, 2026
Knyazev E., Чеботарева О. Е., М.: Издательский дом НИУ ВШЭ, 2026.
This teaching and learning guide provides a concise overview of the theoretical and practical aspects of the basic skills required to work in a biological laboratory. It also includes protocols for practical classes conducted as part of the introductory professional training placement for first-year students in the Bachelor’s programme in Cell and Molecular Biotechnology at ...
Added: September 30, 2026
Ryskina H., Knyazev E., Вопросы биологической, медицинской и фармацевтической химии 2026 Т. 29 № 9 С. 84–91
Introduction. The active integration of rapidly developing omics and computer technologies in the 21st century has led to a breakthrough in understanding the principles of the functioning of living systems. One of the dynamically developing integrative areas in biology is biological modeling. The fundamental paradigm has been the methodology that allows for the prediction of ...
Added: September 29, 2026
Lin Z., Duan K., Wan R. et al., Advanced Science 2026 P. 1–13
Targeted protein degradation represents a promising therapeutic strategy, yet its broader application is often limited by the scarcity of usable E3 ligases. Glutathione peroxidase 4 (GPX4) is a key target for inducing ferroptosis, but achieving sustained and potent inhibition remains challenging with conventional enzymatic inhibitors. Herein, we report the first small‐molecule GPX4 degraders that incorporate ...
Added: September 26, 2026
Diachkova E., Nikulin D., Кубкин Я. В. et al., American Journal of Respiratory and Critical Care Medicine 2026 Vol. 212
Accurate classification of a patient with pulmonary hypertension (PH) into one of five groups is fundamental for appropriate disease management strategies. The time from disease onset to correct diagnosis is unacceptably long in many cases. Chronic thromboembolic pulmonary hypertension (CTEPH) develops as a consequence of venous thromboemboli, resulting in a more pronounced hereditary predisposition to ...
Added: September 23, 2026
Xu Y., Ryabov F., Alexandrov I. et al., USA 2026 Vol. 6 No. 8 Article 101324
Центромеры обеспечивают расхождение хромосом, однако организацию их хроматина в пределах повторяющейся альфа-сателлитной ДНК долгое время было трудно изучать. Для решения этой задачи мы создали гаплотип-разрешённые аннотации сателлитной ДНК для полной диплоидной сборки генома человека T2T-HG002. Затем с помощью метода направленного метилирования с секвенированием длинных прочтений (DiMeLo-seq) мы картировали центромерный белок A (CENP-A), модификацию H3K9me3 и ...
Added: September 23, 2026
Hebbar P., Ryabov F., Alexandrov I. et al., Cell 2026 Vol. 189 P. 4891–4908.e12
The common marmoset is a New World monkey widely used to study primate evolution and human disease. We present a telomere-to-telomere (T2T) reference assembly for the species, plus three near-T2T haplotypes. These resolve previously inaccessible regions, including the centromeres, sex chromosomes, subterminal satellites, acrocentric chromosomes, and the major histocompatibility complex (MHC). We find marmoset centromeres ...
Added: September 23, 2026
Shaitan A., Ke Y., Shutao C. et al., 2026 No. 24 Article 181
Background Therapeutic peptides exert pivotal effects in diverse biological processes, and have attracted significant interest in the field of biomedicine in recent years. However, most existing methods often fail to adequately capture the intricate interactions among amino acid residues and the contextual dependencies within peptide sequences, which hampers the extraction of deep semantic representations and ...
Added: September 18, 2026
S. V. Nikulin, Olkhovik D., A.V. Razumovskaya et al., Doklady Biochemistry and Biophysics 2026 Vol. 526 P. 59–64
A novel trend in anticancer therapy is based on the combination of cytotoxic and metabolic drugs. Bach1 is a transcription factor activating glycolysis and increasing proliferation and metastatic potential in cancer cells. The cytotoxic effect was evaluated for a combination of rotenone, an inhibitor of mitochondrial respiration, and two different inhibitors of Bach1 transcription factor ...
Added: April 13, 2026
Yanova M., Maltseva D., Tonevitsky A., Frontiers in Cell and Developmental Biology 2025 Vol. 13 Article 1720996
Colorectal cancer (CRC) remains one of the leading causes of cancer-related morbidity and mortality worldwide. Tumor sidedness, distinguishing left- (LCRC) and right-sided (RCRC) cancers, has emerged as a critical clinical determinant, influencing patient prognosis and therapeutic response. However, the cellular and molecular mechanisms underlying these differences remain poorly understood. Recent advances in single-cell RNA sequencing ...
Added: December 12, 2025
Silkina M., T.A. Kulagin, K.V. Klycheva et al., Doklady Biochemistry and Biophysics 2026 Vol. 526 P. 11–16
Ferroptosis is considered a promising strategy for inducing the death of tumor cells. However, the effectiveness of known ferroptosis inducers, such as erastin, is in some cases limited, which stimulates the search for new combined application strategies. In this study, the combined effect of erastin and docosahexaenoic acid (DHA) on prostate cancer cells was examined ...
Added: December 11, 2025
K. V. Klycheva, A. V. Razumovskaya, A. D. Shatsillo et al., Doklady Biochemistry and Biophysics 2025 Vol. 525 P. 532–540
Today, breast cancer (BC) occupies a leading position in prevalence and mortality from oncologi- cal diseases among the female population worldwide. Ferroptosis is a special type of cell death associated with peroxidation of intracellular lipids. It is a promising option for the therapy of BC resistant to traditional meth- ods of treatment. The ELOVL5 gene, ...
Added: October 29, 2025
Хотулева М. Г., Садовская Я. О., Karimova A. et al., Российский биотерапевтический журнал 2025
Background. Ferroptosis is a type of non–apoptotic iron-dependent form of regulated cell death. Ferroportin is the only exporter of iron from cells, however, the involvement of ferroportin in cell ferroptosis is poorly understood. Activation or blocking of ferroptosis pathways may provide a therapeutic strategy for the treatment of a number of diseases. Control of ferroportin ...
Added: September 9, 2025
Raigorodskaya M., Novosad V., Tonevitskaya S. et al., Applied Biochemistry and Microbiology 2022 Vol. 58 No. 9 P. 992 – 996
The expression profile of CD44 isoforms in 55 colorectal cancer (CRC) cell lines has been evaluated based on mRNA sequencing data from the Cancer Cell Line Encyclopedia database. The distribution of CD44 mRNA isoforms differs significantly between CRC lines. In 13 studied lines, including Caco-2 and RKO, CD44 expression was not detected. In most other ...
Added: September 1, 2025
Silkina M., Razumovskaya A., Timur Kulagin et al., Biochimie 2025 Vol. 234 P. 48–61
Breast cancer remains a major challenge and new therapeutic approaches are needed for its treatment. Ferroptosis is considered a promising alternative cell death mechanism to eliminate resistant cancer cells. In previous works, we identified that lower IGFBP6 gene expression in tumor tissue corresponds to a worse prognosis for breast cancer patients and, at the same, time makes ...
Added: April 9, 2025
Yanova M., Stepanova E., Maltseva D. et al., Frontiers in Cell and Developmental Biology 2025 Vol. 13 Article 1508577
Cancer chemoresistance presents a challenge in oncology, often leading to treatment failure and disease progression. CD44, a multifunctional cell surface glycoprotein, has garnered attention for its involvement in various aspects of cancer biology. Through alternative splicing, CD44 can form isoforms with the inclusion of only standard exons, typical for normal tissue, or with the addition ...
Added: March 12, 2025
Alexandra Razumovskaya, Maria Silkina, Poloznikov A. et al., Frontiers in Molecular Biosciences 2025 Vol. 12 Article 1531175
Colorectal cancer is characterized by an extremely high mortality rate, mainly caused by the high metastatic potential of this type of cancer. To date, chemotherapy remains the backbone of the treatment of metastatic colorectal cancer. Three main chemotherapeutic drugs used for the treatment of metastatic colorectal cancer are 5-fluorouracil, oxaliplatin and irinotecan which is metabolized ...
Added: January 13, 2025
Razumovskaya A., Кулагин Т. А., Fatkulin A. et al., Биотехнология 2024 Т. 40 № 6 С. 74–83
To date, breast cancer is the most common oncological pathology among the female population both in Russia and worldwide. Previously, our laboratory team identified a significant prognostic marker for breast cancer, namely the ELOVL5 gene, the expression level of which in couple with the IGFBP6 gene allowed to predict the probability of breast cancer recurrence ...
Added: November 11, 2024
Долотказин Д. Р., Аверинская Д. А., Князев Е. Н. et al., Онкоурология 2024 Т. 20 № 1 С. 36–43
Background. Limited sensitivity and specificity of existing prostate cancer (PCa) diagnosis methods drive the search for new markers. A number of studies has demonstrated the potential for measuring expression of certain microRNAs in urine.
Aim. To evaluate the diagnostic potential of measuring microRNA expression in urine in PCa.
Materials and methods. A collection of urine sediment samples from 19 patients ...
Added: May 27, 2024