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Gut Microbiota Dysbiosis and Dietary Interventions in Non-Hodgkin B-Cell Lymphomas: Implications for Treatment Response.

Non-Hodgkin B-cell lymphomas are a heterogeneous group of lymphoid malignancies with variable biological behavior, clinical presentation and treatment response. While chemoimmunotherapy remains the cornerstone of their management, growing evidence implicates the gut microbiota as a critical modulator of both lymphomagenesis and therapeutic efficacy. Gut microbiota dysbiosis, characterized by reduced microbial diversity and pathogenic taxonomic shifts, has been observed also in newly diagnosed patients and not just after therapy. This microbial imbalance contributes to mucosal barrier disruptio

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… The human gut microbiota refers to the diverse community of microorganisms, encompassing bacteria, viruses, fungi, archaea, and protists that reside in various areas of the human body, including the gastrointestinal tract, oral cavity, skin and respiratory tract [ 24 , 25 ]. …

Metagenomic Profiling of Oral Microbiome Dynamics During Chemoradiotherapy in Head and Neck Squamous Cell Carcinoma Patients.

BACKGROUND: We explored the interaction between the oral microbiome and the development of radiation-induced mucositis in patients with head and neck squamous cell cancer (HNSCC) undergoing chemoradiotherapy (CRT). We prospectively studied the oral microbiome and compared it to healthy controls. Additionally, we compared patients with low-grade (LGM) vs. high-grade mucositis (HGM). METHODS: Ten HNSCC patients scheduled for CRT were included. Saliva samples were characterized prior to, during, and nine months after CRT using metagenomic sequencing. We similarly characterized samples from seven

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… It includes not only bacteria and viruses but also archaea and fungi and harbors over 700 microbial species, of which 30% remain uncultivated under laboratory settings [ 7 ]. …

Potential Role of Oral Microbiota in Medication-Related Osteonecrosis of the Jaw in Cancer Patients: A Narrative Review.

Medication-related osteonecrosis of the jaw (MRONJ) is a severe complication frequently observed in cancer patients undergoing antiresorptive therapies, such as bisphosphonates and denosumab. Emerging evidence suggests that dysbiosis of the oral microbiota plays a pivotal role in the pathogenesis of MRONJ. The complex interplay between microbial communities, host immune responses, and the effects of cancer treatments creates an environment conducive to pathogenic colonization, chronic inflammation, and impaired bone healing, which are the key hallmarks of MRONJ. Chemotherapy, radiotherapy, and

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… Review Oral microbiota: a brief overview The oral microbiota is a complex and dynamic ecosystem composed of bacteria, fungi, viruses, and archaea that colonize distinct niches within the oral cavity, including the teeth, tongue, gingiva, and mucosal surfaces [ 6 ]. …

Gene editing and CRISPR in the clinic: current and future perspectives.

Genome editing technologies, particularly those based on zinc-finger nucleases (ZFNs), transcription activator-like effector nucleases (TALENs), and CRISPR (clustered regularly interspaced short palindromic repeat DNA sequences)/Cas9 are rapidly progressing into clinical trials. Most clinical use of CRISPR to date has focused on ex vivo gene editing of cells followed by their re-introduction back into the patient. The ex vivo editing approach is highly effective for many disease states, including cancers and sickle cell disease, but ideally genome editing would also be applied to diseases whic

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… Most recently, CRISPR, a naturally occurring prokaryotic immune system that evolved across diverse bacteria and archaea to protect themselves from invading viruses [ 9 , 10 ] has been re-purposed into powerful gene editing tools that function efficiently in diverse organisms including humans [ 11 ]. …

The Gut Microbiota in Hematologic Malignancies: Mechanisms, Clinical Associations, and Translational Opportunities.

Hematologic malignancies arise and progress within a systemic ecosystem in which the gut microbiota is an increasingly recognized, partially modifiable component. Across acute leukemias, chronic lymphocytic leukemia, plasma cell disorders, lymphomas, and clonal myeloid neoplasms, human studies consistently report reduced microbial diversity, depletion of barrier-supportive, short-chain fatty acid-producing commensals, and enrichment of Gram-negative, pro-inflammatory, or hospital-adapted taxa. These alterations are associated with pre-leukemic clonal expansion, adverse genetic and immunologica

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… The gastrointestinal microbiota, which harbors the greatest microbial density, consists of complex communities of bacteria, archaea, viruses, and fungi. …

Эволюционно сохраненная созвездие функциональных резинов программирует реагирующую на вирус судьбу человека (эпи)генома.

Здоровье человека зависит от запутанной защитной клеточной реакции на микробные патогены, такие как вирусы. Несмотря на предпринятые значительные усилия, (эпи)геномические механизмы, используемые клетками человека для адаптации программ защитного генного экспрессия к микробным атакам, по-прежнему недостаточно изучены, главным образом из-за значительного отсутствия регистрации в vivo функциональных модулей резного регулирования (КРМ) генома человека. Здесь мы представляем реагирующую на вирус судьбу человека (эпи)генома, описываемого в наивных и инфицированных клетках функциональными геномами,

Microbiota-Driven Mechanism in Multical Sclerosis: патогенез, терапевтические стратегии и биомаркерский потенциал.

Множественный склероз (MS) — известное хроническое аутоиммунное расстройство центральной нервной системы (КНС), связанное с демиэлированием и нейродегенерацией. Исследования, ранее проведенные в области кишечного микробиома, показали, что он является важнейшим источником патогенеза MS. Изменения в комменсовом микробиоте, или дисбиозе, оказывают воздействие на иммунный гомеостаз, что приводит к повышению уровней провоспалительных цитокинов и нарушению оси кишечника. В этом обзоре мы представляем всеобъемлющий обзор взаимодействия между кишечной микробиотой и MS с уделением особого внимания имму

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… The mammalian microbiota is estimated to contain trillions of symbiotic microorganisms, comprising bacteria, archaea, viruses, and eukaryotes, residing internally and externally in the body [ 3 ]. …

Адаптация эукариот-подобных PRS к прокариот-подобным tRNAPro.

Синтеты Проли-ТРНА (ПРОРС) уникальны среди аминоачил-тРНК (ААРС) two различные структурные архитектуры различных организмов: прокариота-подобные (П-тип) и эукариоте/археон-подобные (Е-тип). Интересно, что Бакиллус Тюрингьенси гавань обоих типов, сосуществует P-тип (BtProRS1) и E-тип PRS (BtProRS2). Несмотря на свои различия, оба фермента формально выражаются и функционируют в vivo. По аналогии с BtProRS1, BtPRS2 выборочно заряжает TRNAPro типа P и демонстрирует более высокий допуск к галоугинону, чем каноническая PRS. Однако эти two Изозимы признают основные идентификационные элементы типа P t

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… In contrast, in eukarya and archaea, only G35 and G36 in the anticodon play a crucial role in recognition of tRNA Pro by ProRS. The nucleotides at positions 72 and 73 have diverged to CC in eukaryotic tRNA Pro and CA in archaeal tRNA Pro . …

The landscape and trajectory of global CRISPR therapeutics.

With the first regulatory approval in 2023 of a CRISPR-based therapy for sickle cell disease followed by the recent demonstration of an accelerated, personalized CRISPR treatment for congenital severe carbamoyl-phosphate synthetase 1 deficiency, CRISPR-Cas9 genome editing has progressed from a laboratory technology into a clinical reality in just over a decade. While enthusiasm for deploying CRISPR-Cas9 to treat a range of human genetic diseases continues to grow, broad clinical application remains constrained due to technical, regulatory, manufacturing and economic challenges. Here, scientist

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… Introduction Clustered regularly interspaced short palindromic repeats (CRISPR) and CRISPR-associated proteins (Cas) have undergone a remarkable transformation since their identification as components of adaptive immunity in bacteria and archaea. 1 Following the demonstration that CRISPR-Cas could be …

A Literature Review on the Impact of the Gut Microbiome on Cancer Treatment Efficacy, Disease Evolution and Toxicity: The Implications for Hematological Malignancies.

The gut microbiome plays a crucial role in modulating the efficacy and toxicity of cancer therapies, particularly in hematological malignancies. This review examines the dynamic interplay between gut microbiota and cancer treatments, such as chemotherapy, immunotherapy, and hematopoietic stem cell transplantation (HSCT). Disruptions in the gut microbiome, known as dysbiosis, are associated with adverse effects like gastrointestinal toxicity, neutropenia and cardiotoxicity during chemotherapy. Conversely, the supplementation of probiotics has shown potential in mitigating these side effects by

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… The human gut microbiota (GM) consists of a community of microorganisms residing within the intestinal tract, such as bacteria, archaea, fungi, protozoa and viruses. The main bacterial groups in the microbiome consist of Gram-positive Firmicutes and Gram-negative Bacteroidetes [ 1 , 2 ]. …

Биоинформатический анализ взаимодействия миелинов и микробов говорит о том, что в патогенезе множественных склерозов присутствуют различные виды молекулярной имитации.

Множественный склероз (MS) — разрушительная аутоиммунная болезнь, приводящая к разрушению милиновой оболочки в центральной нервной системе человека (КНС). Было установлено, что инфекция вирусов и бактерий тесно связана с наступлением мороза или его остротой. Мы предположили, что атака иммунной системы на милиновую оболочку может быть спровоцирована вирусами и бактериальными антигенами, которые напоминают компоненты миелиновой оболочки. Для выявления вирусных и бактериальных антигенов, похожих на миелин олигодендроцит гликпротеин (МОГ) и миелинский основной протеин (МБП), был применен подход, о

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… Archaea (overview). Encyclopedia of Microbiology. Elsevier Inc. ; 2009 . pp. 1 – 23 . doi: 10.1016/B978-012373944-5.00108–5 56 Nip WK , Chu FS . Production of [14C]patulin by Penicillium patulum. Applied and Environmental Microbiology. …

Fucoidan: An Update on Function, Role in Human Health and Applications.

Fucoidan is a polysaccharide bioactive compound, mainly from brown algae, characterized by multiple biological activities, including anti-inflammatory, anticoagulant, anticancer, antioxidant, antiviral, and cardioprotective properties. In addition, growing scientific evidence supports its epigenetic potential and ability to modulate autophagic mechanisms, two crucial aspects for the treatment and prevention of chronic diseases, such as cancer, inflammation, and aging. For this reason, Fucoidan is a promising candidate for a wide range of applications, both as a bioactive component of drug deli

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… “Microalgae, Seaweeds and Aquatic Bacteria, Archaea, and Yeasts: Sources of Carotenoids With Potential Antioxidant and Anti‐Inflammatory Health‐Promoting Actions in the Sustainability Era.” Marine Drugs 21, no. 6: 340. 10.3390/md21060340. Mensah, E. O. , Kanwugu O. N., Panda P. …

Microorganisms Associated with the Marine Sponge Scopalina hapalia: A Reservoir of Bioactive Molecules to Slow Down the Aging Process.

Aging research aims at developing therapies that delay normal aging processes and some related pathologies. Recently, many compounds and ext … ine sponge Scopalina hapalia was investigated by metagenomic analysis. Twenty-six bacterial and two archaeal phyla were recovered from the sponge, of which the Proteobacteria phylum was the most abundant. In addition, 30 isolates from S. hapalia were selected and cultivated for identification and secondary metabolites production. The selected isolates wer …

Emerging Therapies for Hepatocellular Carcinoma (HCC).

Hepatocellular carcinoma (HCC) arises from hepatocytes and accounts for 90% of primary liver cancer. According to Global Cancer Incidence, Mortality and Prevalence (GLOBOCAN) 2020, globally HCC is the sixth most common cancer and the third most common cause of cancer-related deaths. Reasons for HCC prognosis remaining dismal are that HCC is asymptomatic in its early stages, leading to late diagnosis, and it is markedly resistant to conventional chemo- and radiotherapy. Liver transplantation is the treatment of choice in early stages, while surgical resection, radiofrequency ablation (RFA) and

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… CRISPR interference: RNA-directed adaptive immunity in bacteria and archaea. Nat. Rev. Genet. 2010;11:181–190. doi: 10.1038/nrg2749. 83. Zheng A., Chevalier N., Calderoni M., Dubuis G., Dormond O., Ziros P.G., Sykiotis G.P., Widmann C. …

Mucositis and Infection in Hematology Patients.

Survival in patients with hematological malignancies has improved over the years, both due to major developments in anticancer treatment, as well as in supportive care. Nevertheless, important and debilitating complications of intensive treatment regimens still frequently occur, including mucositis, fever and bloodstream infections. Exploring potential interacting mechanisms and directed therapies to counteract mucosal barrier injury is of the utmost importance if we are to continue to improve care for this increasingly growing patient population. In this perspective, I highlight recent advanc

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… The oral cavity harbors a complex ecosystem of bacteria, fungi, viruses, archaea, and protozoa. About 1000 different microbial species can be found in the oral cavity. Much more is known about the bacteria in the oral cavity than about the other oral microorganisms. …

Медицинский каннабис и признаки рака: критический обзор.

Онкология остаётся сложным и гетерогенным заболеванием, вызывающим значительную morbidity и mortality по всему миру, несмотря на продвижение в диагностике и лечении. Характерные черты онкологии раскрывают биологические механизмы, поддерживающие развитие опухолей и злокачественное эволюцию, а также помогают выявить потенциальные мишени для терапии. Медикаментозный кресс-масло в основном используется в онкологии для поддерживающей терапии, но растущее предклиническое доказательство указывает на взаимодействие с сигнальными путями, связанными с онкологией. Этот обзорный материал обобщает текущие

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… Polymorphic Microbiomes Polymorphic microbiomes are highly variable communities of bacteria, fungi, viruses and even archaea and protozoa that colonise different tissues, influencing not only cancer development but also the response to different treatments. …

The Link Between the Gut Microbiome and Bone Metastasis.

The gut microbiome is essential for regulating host metabolism, defending against pathogens, and shaping the host's immune system. Mounting evidence highlights that disruption in gut microbial communities significantly impacts cancer development and treatment. Moreover, tumor-associated microbiota, along with its metabolites and toxins, may contribute to cancer progression by promoting epithelial-to-mesenchymal transition, angiogenesis, and metastatic spread to distant organs. Bones, in particular, are common sites for metastasis due to a rich supply of growth and neovascularization factors an

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… Introduction Trillions of bacteria, viruses, fungi, archaea, and eukaryotic organisms inhabit the human gastrointestinal tract (GIT). The gut microbiome represents a complex community of all microorganisms residing in GIT, along with their genes and metabolic potential. …

Antibiotics: Conventional Therapy and Natural Compounds with Antibacterial Activity-A Pharmaco-Toxicological Screening.

Antibiotics are considered as a cornerstone of modern medicine and their discovery offers the resolution to the infectious diseases problem. However, the excessive use of antibiotics worldwide has generated a critical public health issue and the bacterial resistance correlated with antibiotics inefficiency is still unsolved. Finding novel therapeutic approaches to overcome bacterial resistance is imperative, and natural compounds with antibacterial effects could be considered a promising option. The role played by antibiotics in tumorigenesis and their interrelation with the microbiota are sti

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… Antibiotics and Microbiota The human intestine is the habitat for a diverse community of microorganisms consisting of bacteria, archaea, eukaryotes and viruses [ 170 ]. …

Applications of synthetic biology in medical and pharmaceutical fields.

Synthetic biology aims to design or assemble existing bioparts or bio-components for useful bioproperties. During the past decades, progresses have been made to build delicate biocircuits, standardized biological building blocks and to develop various genomic/metabolic engineering tools and approaches. Medical and pharmaceutical demands have also pushed the development of synthetic biology, including integration of heterologous pathways into designer cells to efficiently produce medical agents, enhanced yields of natural products in cell growth media to equal or higher than that of the extract

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… Although the simplest organisms such as virus particles, bacteria, archaea and fungi were hard to engineer in the 20th century, some achievements were still acquired in the early explorations including the synthesis of crystalline bovine insulin, 3 chemical synthesis of DNA and RNA, 4 decoding of genetic …

Роль кишечника микробиота-митохондрия в нейродегенерации: основополагающие механизмы и потенциальные методы лечения.

Появляющиеся данные свидетельствуют о том, что микробиота кишечника тесно связана с патологическими проявлениями множественных нейродегенеративных заболеваний через ось кишечника, которая относится к перекрестку между кишечником и центральной нервной системой. Еще важнее то, что митохондрия считается выдающимся посредником взаимодействия между кишечной микробиотой и мозгом. Кишечные микробы могут модифицировать функцию митохондриала в центральной нервной системе, чтобы повлиять на развитие нейродегенеративных заболеваний. Митохондрия необходима для удовлетворения значительных потребностей носи

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… Introduction The gut microbiome is the collective term used to describe the bacteria, archaea, viruses, and other microorganisms residing in the human gastrointestinal tract. …