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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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… Second, the profound immunosuppression and compromised mucosal barrier integrity in these patients elevate the risk of bacterial translocation, rendering the safety of probiotic administration—especially strains like Lactobacillus and Bifidobacterium —a concern in this vulnerable population. …

Премии победителей и резюме 32nd Ежегодный симпозиум Общества протеинов; Бостон, ОЭТ, июль 9-12, 2018.

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Интратективный иммуноглобулин А Обобщение в множестве склероза: от биологических аспектов к клинической значимости.

Интратекальский иммуноглобулин А (IgA) синтез в множестве склерозов (MS) давно не получал достаточного внимания, несмотря на потенциальное значение патогенеза и прогноза заболеваний. Наличие доброкачественных плазменных клеток IgA в повреждениях MS и вдоль поврежденных аксонов свидетельствует о роли в патогенезе болезней. Имеющиеся клинические данные о потенциальной позитивной или негативной прогнозируемой роли являются скудными и неточными. Вместе с тем последние наблюдения свидетельствуют о переходе от кишечника к центральной нервной системе (КНС) в экспериментальные аутоиммунные энцефалитны

The Insider: Impact of the Gut Microbiota on Cancer Immunity and Response to Therapies in Multiple Myeloma.

The human microbiota is a unique set of microorganisms colonizing the human body and evolving within it from the very beginning. Acting as an insider, the microbiota provides nutrients, and mutualistically interacts with the host's immune system, thus contributing to the generation of barriers against pathogens. While a strong link has been documented between intestinal dysbiosis (i.e., disruption to the microbiota homeostasis) and diseases, the mechanisms by which commensal bacteria impact a wide spectrum of mucosal and extramucosal human disorders have only partially been deciphered. This is

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… Indeed, melphalan induces dysbiosis, reduction of SCFA production and bacterial translocation ( 115 ). Thus, replenishing SCFA or normalization of microbiota composition might re-establish intestinal homeostasis and improve drug tolerability. …

Многоступенчатые ассоциации патогенеза и болезней Mycobacterium avium подраздел паратуберкулез.

Mycobacterium avium subsp. паратуберкулез (MAP) является основным агентом причинно-следственной связи болезни Джона (JD) в румынках и имеет потенциальные последствия для здоровья населения. Совокупные эпидемиологические и молекулярные данные предполагают, что MAP может способствовать болезни Крона (CD), в то время как его связь с множественным склерозом (MS), тип 1 Болелезный диабет (T1DM) и амиотропический боковой склероз (ALS) остаются ассоциативными без подтвержденной причинно-следственной связи. В настоящем описательном обзоре синтезируются данные о распределении по окружающей среде, генот

Targeted toxins in brain tumor therapy.

Targeted toxins, also known as immunotoxins or cytotoxins, are recombinant molecules that specifically bind to cell surface receptors that are overexpressed in cancer and the toxin component kills the cell. These recombinant proteins consist of a specific antibody or ligand coupled to a protein toxin. The targeted toxins bind to a surface antigen or receptor overexpressed in tumors, such as the epidermal growth factor receptor or interleukin-13 receptor. The toxin part of the molecule in all clinically used toxins is modified from bacterial or plant toxins, fused to an antibody or carrier liga

Структурная основа регламентации стенограмм с помощью нарождающегося элемента РНК, HK022 potRNA.

Переписка, в которой RNA полимеразы (RNAPs) производят RNA из ДНК, является первым шагом в генной экспрессии. Таким образом, она сильно регулируется либо трансэлементами, такими как белковые факторы, и/или резьбами, как конкретные последовательности на ДНК. В лямбдоидной фаге HK022 содержится резьбовое пятно, которое подавляет падение и прекращение во время транскрипции ранних фаговых генов. Протокол PotRNA осуществляет исключительно деятельность по борьбе с растлением/прекращением путем прямого взаимодействия с комплексом удлинения RNA E.coli (EC) с помощью неизвестного структурного механизма

Combination strategies of gut microbiota in cancer therapy through metabolic reprogramming and immune remodeling.

Over the past decade, there has been a qualitative improvement in the understanding of gut microbiota in cancer development and treatment. Gut microbiota regulates metabolic reprogramming that occurs in the competition between tumor cells and immune cells for essential nutrients in the tumor microenvironment (TME). Besides, gut microbiota dysbiosis is one of the key factors leading to the formation of aging environment, which has many similarities with the TME. Accumulating research findings have demonstrated that gut microbiota enhances the efficacy of cancer therapies by activating the immun

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… For instance, engineered phages targeting E. coli by CRISPR-Cas system effectively reduced the E. coli load in mouse models’ intestines, serving as a strategy to prevent bacterial translocation and bacteremia during cancer therapy [ 141 ]. …

Probiotics: Potential Benefits and Safety in Hematological Malignancies.

Cancer remains one of the most significant global health challenges, with increasing incidence and mortality rates and a substantial socioeconomic burden. Traditional cancer treatments such as chemotherapeutic drugs and radiation therapies, while effective, have significant adverse effects on the body, prompting the search for less invasive treatment options. In recent years, probiotics have emerged as a promising alternative in the prevention and treatment of cancer and its associated complications, especially in gastrointestinal malignancies. Probiotics have been found to have several benefi

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… Oral administration of Lactobacillus rhamnosus GG in drinking water before and after hematopoietic stem cell transplantation resulted in reduced bacterial translocation, improved survival, and reduced acute GVHD pathogenesis in murine models. …

Гут Микробиота Нарушение гематологовой терапии рака: Молекулярное понимание и последствия для эффективности лечения.

Гематологическая магнелезность (ГМ), включая лейкемию, лимфому и множественные миеломы, связана с бесконтрольным распространением аномальных кровеносных клеток, что создает серьезные клинические проблемы из-за их неоднородности и различных методов лечения. Несмотря на недавние достижения в области лечения, благодаря которым повысились показатели выживаемости, особенно в случае хронической лимфоцитической лейкемии и острой лимфоболической лейкемии, такие методы лечения, как химиотерапия и трансплантация стволовых клеток, часто нарушают микробиоту, что может негативно сказаться на результатах ле

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… Translocation and immunomodulation: Chemotherapy can cause bacterial translocation by damaging the gut epithelium, increasing infection risks, and affecting chemotherapy efficacy. … This bacterial translocation stimulates the activation of memory T helper 1 (Th1) cells and the conversion of naive CD4+ T cells to T helper 17 (Th17) cells, which secrete IL-17 and interferon-gamma (IFN-γ) [ 75 , 76 ]. …

Busulfan plus melphalan versus melphalan alone conditioning regimen after bortezomib based triplet induction chemotherapy for patients with newly diagnosed multiple myeloma.

BackgroundHigh dose melphalan (HDMEL) is considered the standard conditioning regimen for autologous stem cell transplantation (ASCT) in multiple myeloma (MM) patients. Recent studies showed superiority of busulfan plus melphalan (BUMEL) compared to HDMEL as a conditioning regimen. We compared the efficacy of HDMEL and BUMEL in newly diagnosed Asian MM patients, who are often underrepresented.MethodsThis is a single-center, retrospective study including MM patients who underwent ASCT after bortezomib-thalidomide-dexamethasone (VTD) triplet induction chemotherapy between January 2015 and August

Host impairments in patients with neoplastic diseases.

Healthy individuals possess an immune system comprising physical barriers, innate and acquired immunity as well as the indigenous microflora that populate the body surfaces. The immune system maintains constant vigilance over the body at the cellular level as well as at the interface between the host integument and the resident microflora. However, neoplastic diseases and their treatment often lead to impaired immunity resulting in an increased risk of infections due to viruses, bacteria, fungi, and protozoa. This chapter explores the various aspects of host impairment focusing on the componen

Pseudomonas aeruginosa Infections in Cancer Patients.

Pseudomonas aeruginosa (P. aeruginosa) is one of the most frequent opportunistic microorganisms causing infections in oncological patients, especially those with neutropenia. Through its ability to adapt to difficult environmental conditions and high intrinsic resistance to antibiotics, it successfully adapts and survives in the hospital environment, causing sporadic infections and outbreaks. It produces a variety of virulence factors that damage host cells, evade host immune responses, and permit colonization and infections of hospitalized patients, who usually develop blood stream, respirato

Imaging of abdominal and pelvic infections in the cancer patient.

Infections are the most commonly encountered complications in patients with cancer. The classical signs and symptoms of infections are often not present in this patient population, which makes the diagnosis more challenging. Host factors play a major role in the development and prognosis of infections in cancer patients; these can be related to the underlying type of malignancy (solid organ versus hematological), tumor burden, anatomic obstruction, altered integrity of barriers (skin or mucosa), treatment-related factors (from chemotherapy, radiation treatment, surgery, interventional procedur

Exploring the gut microbiome's influence on cancer-associated anemia: Mechanisms, clinical challenges, and innovative therapies.

BackgroundAnemia is a prevalent and challenging complication in patients with hematologic and solid malignancies, which stems from the direct effects of malignancy, treatment-induced toxicities, and systemic inflammation. It affects patients' survival, functional status, and quality of life profoundly. Recent literature has highlighted the emerging role of the gut microbiome in the pathogenesis of cancer-associated anemia. The gut microbiota, through its intricate interplay with iron metabolism, inflammatory pathways, and immune modulation, may either exacerbate or ameliorate anemia depending

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… Impaired iron absorption due to altered expression of critical gut-associated proteins, such as ferroportin and divalent metal transporter 1, promotes systemic inflammation through increased bacterial translocation and endotoxin production, and suppresses erythropoiesis through inflammatory cytokines …

Фармакомикробиомика: От взаимодействия хост-микробиома-наркотики к клиническому переводу в докторскую медицину.

Заметная межиндивидуальная изменчивость реакции на наркотики по-прежнему является серьезной проблемой в области клинической фармакологии и не может быть в полной мере объяснена только генетикой принимающей страны. Растущие данные свидетельствуют о том, что кишечная микробиота является дополнительным фактором, определяющим эффективность и токсичность наркотиков посредством двустороннего взаимодействия с фармакологической терапией. Это признание привело к появлению фармакомикробиомики - области, которая изучает, как микробные сообщества влияют на утилизацию наркотиков и реагирование на них, и ка

Drug Repurposing of Selected Antibiotics: An Emerging Approach in Cancer Drug Discovery.

Drug repurposing is a method of investigating new therapeutic applications for previously approved medications. This repurposing approach to "old" medications is now highly efficient, simple to arrange, and cost-effective and poses little risk of failure in treating a variety of disorders, including cancer. Drug repurposing for cancer therapy is currently a key topic of study. It is a way of exploring recent therapeutic applications for already-existing drugs. Theoretically, the repurposing strategy has various advantages over the recognized challenges of creating new molecular entities, inclu

От Мауса к разуму: Нервозность роли орального микробиома в орофациальной боли и нейродегенерации.

Человеческая пероральная полость содержит разнообразный и динамичный микробиом, состоящий более чем из двух микробиомов. 700 Микробные виды, которые играют решающую роль в поддержании перорального и системного здоровья. Оральный дисбиоз, определяемый как нарушение этого микробного баланса, все чаще проявляется не только в периодонных заболеваниях, но и в патогенезе ородовой боли и нейродегенеративных заболеваниях. Были предложены ключевые патогены, такие, как Porphyromonas gingivalis, Treponema denticola и Fusobacterium нуклеатум, для высвобождения вирулентных факторов, включая липополисакчари

Leveraging the bacteria for enhanced cancer immunotherapy: from a perspective of synthetic biology.

In recent years, synthetic biology has been widely applied to engineer and program cellular behaviors. Using this approach, bacteria can be designed to express immunotherapeutic agents, improve tumor targeting, and deliver therapeutic payloads directly to tumor sites. To further improve efficacy, strategies such as hypoxia-responsive promoters, bacterial swarming, and extracellular vesicles (EVs) have been investigated, along with the synergistic effects of combining bacterial therapy with other treatments (e.g., photodynamic therapy, chemotherapy, immune checkpoint inhibitors). This review su

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… For instance, bacteria can be designed to sense and respond to the acidic, lactate-rich TME, restricting therapeutic gene expression to tumors for enhanced specificity. 46 Bacterial translocation into tumor tissue is further facilitated by motility systems, including flagella and type IV pili, as well …

Intestinal/Multivisceral Transplantation

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… Acute cellular rejection is characterized by fever, diarrhea, abdominal pain and/or distension, and is often associated with positive blood cultures due to bacterial translocation of enteric organisms [ 25 ]. … Berg RD Bacterial translocation from the gastrointestinal tract J Med 1992 23 217 1479301 80. Cicalese L Sileri P Green M Bacterial translocation in clinical intestinal transplantation Transplantation 2001 71 1414 11391228 10.1097/00007890-200105270-00010 81. …