Результаты поиска

Repurposing anticancer drugs for the management of COVID-19.

Since its outbreak in the last December, coronavirus disease 2019 (COVID-19) caused by SARS-CoV-2 has rapidly spread worldwide at a pandemic proportion and thus is regarded as a global public health emergency. The existing therapeutic options for COVID-19 beyond the intensive supportive care are limited, with an undefined or modest efficacy reported so far. Drug repurposing represents an enthusiastic mechanism to use approved drugs outside the scope of their original indication and accelerate the discovery of new therapeutic options. With the emergence of COVID-19, drug repurposing has been la

Profiling of Small Nucleolar RNAs by Next Generation Sequencing: Potential New Players for Breast Cancer Prognosis.

One of the most abundant, yet least explored, classes of RNA is the small nucleolar RNAs (snoRNAs), which are well known for their involvement in post-transcriptional modifications of other RNAs. Although snoRNAs were only considered to perform housekeeping functions for a long time, recent studies have highlighted their importance as regulators of gene expression and as diagnostic/prognostic markers. However, the prognostic potential of these RNAs has not been interrogated for breast cancer (BC). The objective of the current study was to identify snoRNAs as prognostic markers for BC. Small RN

The role and novel use of natural killer cells in graft-versus-leukemia reactions after allogeneic transplantation.

Allogeneic hematopoietic cell transplantation (HCT) has transformed over the past several decades through enhanced supportive care, reduced intensity conditioning (RIC), improved human leukocyte antigen (HLA) typing, and novel graft-versus-host disease (GVHD)-prevention and treatment strategies. Most notably, the implementation of post-transplantation cyclophosphamide (PTCy) has dramatically increased the safety and availability of this life-saving therapy. Given reductions in nonrelapse mortality (NRM) with these advances, the HCT community has placed even greater emphasis on developing ways

Иммунитет Т-клеток, специфичный для EBV: значение для множественного склероза.

Генетические и экологические факторы совместно определяют подверженность развитию множественных склерозов (МС). Улучшения в разработке эпидемиологических исследований помогли выявить последовательные ассоциации экологического риска, такие, как повышенная подверженность НР после заражения вирусом Эпштейн-Барр (ЭБВ), в то время как биологические механизмы, влияющие на связь между ЕБВ и НР, по-прежнему недостаточно изучены. Увеличение и расширение репертуара антител и клеток иммунной реакции на антигены EBV, особенно на доминирующий антиген CD4+T-клеток EBV 1 (EBNA1) постоянно наблюдается у пацие

Изучение взаимосвязи между гутт-здоровьем и аутоиммунными заболеваниями: систематический обзор и мета-анализ.

Аутоиммунные заболевания (АИД) представляют собой многогранные хронические заболевания, характеризующиеся иммунной дисрегулированием и системным воспалением. Более свежие данные указывают пальцем на микробиоту человеческого кишечника, триллионную популяцию микроорганизмов, обитающих в человеческом тракте GI, в качестве главного влиятельного модулятора иммунной реактивности и важного фактора аутоиммунной патогенез. Цель этого систематического обзора будет заключаться в изучении вопроса о том, каким образом литература соотносится с систематическими изменениями в микробиоте кишечника в АИД, а так

Cachexia as Evidence of the Mechanisms of Resistance and Tolerance during the Evolution of Cancer Disease.

During its evolution, cancer induces changes in patients' energy metabolism that strongly affect the overall clinical state and are responsible for cancer-related cachexia syndrome. To better understand the mechanisms underlying cachexia and its metabolic derangements, research efforts should focus on the events that are driven by the immune system activation during the evolution of neoplastic disease and on the phenomena of "resistance" and "tolerance" typically involved in the human body response against stress, pathogens, or cancer. Indeed, in the case where resistance is not able to elimin

A Review of Repurposed Cancer Drugs in Clinical Trials for Potential Treatment of COVID-19.

The pandemic of the coronavirus disease 2019 (COVID-19) represents an unprecedented challenge to identify effective drugs for prevention and treatment. While the world's attention is focused on news of COVID-19 vaccine updates, clinical management still requires improvement. Due to the similarity of cancer-induced inflammation, immune dysfunction, and coagulopathy to COVID-19, anticancer drugs, such as Interferon, Pembrolizumab or Bicalutamide, are already being tested in clinical trials for repurposing, alone or in combination. Given the rapid pace of scientific discovery and clinical data ge

Внеклеточные нуклеотиды являются посредником в вирусных инфекциях центральной нервной системы: ключи от нейроинфламмации и нейродегенерации.

Недавний рост инфекционных заболеваний, затрагивающих центральную нервную систему, вызвал обеспокоенность по поводу их роли в нейроинфламмации и нейродегенерации. Вирусные патогены или их продукты могут вторгаться в центральную нервную систему и вызывать повреждения, ведущие к менингиту, энцефалиту, менингоэнцефалиту, миелиту или постинфекционным демиелинизирующим заболеваниям. Хотя изначально нейроинфламмация имеет защитную функцию, хроническое воспаление может способствовать развитию нейродегенеративных заболеваний. Такие механизмы, как агрегация белков и клеточные расстройства, связаны с ко

Role of Polymorphisms of NKG2D Receptor and Its Ligands in Acute Myeloid Leukemia and Human Stem Cell Transplantation.

Natural killer cells possess key regulatory function in various malignant diseases, including acute myeloid leukemia. NK cell activity is driven by signals received through ligands binding activating or inhibitory receptors. Their activity towards elimination of transformed or virally infected cells can be mediated through MICA, MICB and ULBP ligands binding the activating receptor NKG2D. Given the efficiency of NK cells, potential target cells developed multiple protecting mechanisms to overcome NK cells killing on various levels of biogenesis of NKG2D ligands. Targeted cells can degrade liga

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

Drugging the efferocytosis process: concepts and opportunities.

The daily removal of billions of apoptotic cells in the human body via the process of efferocytosis is essential for homeostasis. To allow for this continuous efferocytosis, rapid phenotypic changes occur in the phagocytes enabling them to engulf and digest the apoptotic cargo. In addition, efferocytosis is actively anti-inflammatory and promotes resolution. Owing to its ubiquitous nature and the sheer volume of cell turnover, efferocytosis is a point of vulnerability. Aberrations in efferocytosis are associated with numerous inflammatory pathologies, including atherosclerosis, cancer and infe

Совпадение в полном тексте источника
… Small molecules that enhance intracellular signalling by PS receptors, while not increasing their membrane expression, might be an extremely successful host-directed therapy. The strategy will retain the antibacterial benefits while keeping the levels of bacterial invasion low. …

The microbiota-gut-brain-axis theory: role of gut microbiota modulators (GMMs) in gastrointestinal, neurological, and mental health disorders.

The modulation of gut microbiota presents promising therapeutic possibilities for various health conditions, ranging from gastrointestinal infections to neurodegenerative and mental health disorders. Among the available interventions, gut microbiota modulators (GMMs) such as probiotics and prebiotics have demonstrated significant potential in infection prevention and neuroprotection. Despite these encouraging findings, the clinical application of GMMs remains challenging due to safety concerns and inconsistent effectiveness across diverse patient populations. These factors create substantial b

Interleukin-32: a Pandora's box in human immunodeficiency virus infection.

Human immunodeficiency virus (HIV), which causes acquired immunodeficiency syndrome (AIDS), has been estimated to infect around 40.8 million people globally. This virus can persist and thrive in the presence of antiretroviral therapy, which is a major obstacle to HIV eradication. Therefore, understanding host immunological factors that underlie HIV persistence and pathogenesis can lead to the development of immunotherapeutic interventions. Interleukin-32 (IL-32) is an orphan cytokine with multiple isoforms and a complex signal transduction pathway that transmits through non-specific receptors.

Mesenchymal Stromal Cells: Bridging the Gaps in Hematologic Disease Therapy.

Mesenchymal stromal cells (MSCs) have demonstrated therapeutic potential in hematologic diseases by modulating immune responses, supporting hematopoiesis, and remodeling the bone marrow microenvironment. Clinically, MSCs have been explored for graft-versus-host disease and hematopoietic stem cell transplantation support, while their applications in hematologic malignancies, including acute myeloid leukemia, multiple myeloma, and myelodysplastic syndromes, remain under investigation. However, therapeutic heterogeneity, safety concerns, and standardization challenges limit their clinical transla

Clinical Manifestations of Human Exposure to Fungi.

Biological particles, along with inorganic gaseous and particulate pollutants, constitute an ever-present component of the atmosphere and surfaces. Among these particles are fungal species colonizing almost all ecosystems, including the human body. Although inoffensive to most people, fungi can be responsible for several health problems, such as allergic fungal diseases and fungal infections. Worldwide fungal disease incidence is increasing, with new emerging fungal diseases appearing yearly. Reasons for this increase are the expansion of life expectancy, the number of immunocompromised patien

History of hematopoietic cell transplantation: challenges and progress.

After more than 60 years of research in allogeneic hematopoietic cell transplantation (HCT), this therapy has advanced from one that was declared dead in the 1960s to a standard treatment of otherwise fatal malignant and non-malignant blood diseases. To date, close to 1.5 million hematopoietic cell transplants have been performed in more than 1,500 transplantation centers worldwide. This review will highlight the enormous efforts by numerous investigators throughout the world who have brought the experimental field of HCT to clinical reality, examine ongoing challenges, and provide insights fo

Интегрин α4β7:: патогенные роли в заболеваниях метаболики и воспаления и в терапии перевода.

Интегрин α4β7 является ключевым рецептором сцепления, который является посредником лимфоцита, движущегося к кишечной слизи через взаимодействие с MAdCAM-1, VCAM-1, и фибронектин, тем самым играя центральную роль в иммунной слежке и мукозаловом иммунитете. Появляющиеся данные расширили его функциональный охват за пределы кишечного гомеостаза, с тем чтобы охватить различные подстрекательские и метаболические заболевания. В настоящем обзоре систематически резюмируются структурные характеристики, взаимодействия лигандов и положения о соответствии α.4β7, с акцентом на патогенную роль в провокационн

Hematopoietic stem cell transplantation-50 years of evolution and future perspectives.

Hematopoietic stem cell transplantation is a highly specialized and unique medical procedure. Autologous transplantation allows the administration of high-dose chemotherapy without prolonged bone marrow aplasia. In allogeneic transplantation, donor-derived stem cells provide alloimmunity that enables a graft-versus-tumor effect to eradicate residual disease and prevent relapse. The first allogeneic transplantation was performed by E. Donnall Thomas in 1957. Since then the field has evolved and expanded worldwide. New indications beside acute leukemia and aplastic anemia have been constantly ex

Exogenous Heat Shock Proteins in Oncology: Biological Roles and Clinical Implications.

Heat shock proteins (HSPs), particularly HSP70 and HSP90, are highly conserved molecular chaperones that protect cells from a wide range of stressors and maintain proteome homeostasis. In cancer, tumor cells frequently overexpress and actively release HSPs into the extracellular space and circulation in response to metabolic alterations, hypoxia, oxidative stress, and therapeutic interventions. Consequently, circulating HSP levels are often elevated in patients with malignancies compared with healthy individuals. This review summarizes current evidence on the diagnostic, prognostic, and predic

Seasonal clustering of sinopulmonary mucormycosis in patients with hematologic malignancies at a large comprehensive cancer center.

BackgroundInvasive Mucorales infections (IMI) lead to significant morbidity and mortality in immunocompromised hosts. The role of season and climatic conditions in case clustering of IMI remain poorly understood.MethodsFollowing detection of a cluster of sinopulmonary IMIs in patients with hematologic malignancies, we reviewed center-based medical records of all patients with IMIs and other invasive fungal infections (IFIs) between January of 2012 and August of 2015 to assess for case clustering in relation to seasonality.ResultsA cluster of 7 patients were identified with sinopulmonary IMIs (