Результаты поиска

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

Экстракорпоральное обнаружение биомаркеров и патогенов в слюне: всеобъемлющий, панорамный обзор.

Человеческая слюна представляет собой разнородную жидкость с сложным составом, которая содержит антитела, белки и вирусы, что делает ее применимой в клинической диагностике. Анализ проб слюны имеет несколько преимуществ по сравнению с другими биофильтрами, включая неинвазивную и простую процедуру сбора для эксторального обнаружения. Диагностика биомаркеров или патогенов в слюне может осуществляться различными методами: масс-спектрометрией, ПЦР, ЭЛИСА, электрохимическими и оптическими методами, такими, как флуоресцентная, SPR и SERS. Раннее обнаружение раковых и других биомаркеров заболеваний,

Role of PARP Inhibitors in Cancer Immunotherapy: Potential Friends to Immune Activating Molecules and Foes to Immune Checkpoints.

Poly (ADP-ribose) polymerase (PARP) inhibitors (PARPi) induce cytotoxic effects as single agents in tumors characterized by defective repair of DNA double-strand breaks deriving from BRCA1/2 mutations or other abnormalities in genes associated with homologous recombination. Preclinical studies have shown that PARPi-induced DNA damage may affect the tumor immune microenvironment and immune-mediated anti-tumor response through several mechanisms. In particular, increased DNA damage has been shown to induce the activation of type I interferon pathway and up-regulation of PD-L1 expression in cance

Обзор необщей внеэпиптической центральной нервной системы (СКС) симптомов заражения вирусом гепатита С (ГКВ): доклад по делу.

Цель настоящего доклада состоит в том, чтобы пролить свет на все более описываемый сценарий внеэптических проявлений центральной нервной системы (СНС) инфекции гепатита С (ГКВ). Мы представляем возможный редкий случай острого распространенного энцефаломиэлита, который проявляется как повреждения кольца на магнитно-резонансной съемке (MRI) в исследовании головы, проведенном на джентльмене в возрасте 50 лет, который представил в больницу неврологические характеристики, с явной демонстрацией рипонуклеиновой кислоты (RNA) в пробах цереброспайнальной жидкости пациента. Был также рассмотрен вопрос о

Нацеливание moTOR сигнализирующих путей в нескольких миеломах: биология и последствия для терапии.

Множественная миелома (ММ), рак неизлечимо дифференцированных плазменных клеток, является вторым по распространенности гематологической злокачественности и неизлечимо из-за неизбежного развития лекарственной устойчивости. Интенсивный синтез белка является отличительной чертой клеток MM, поддерживающей массовое производство клональных иммуноглобулинов или свободных световых цепей. Млекопитающая цель рэпамицин (mTR) киназы ценится как главный регулятор жизненно важных клеточных процессов, включая регулирование метаболизма и синтеза белка, и может быть найдена в two Мультипротеиновые комплексы, M

Coexisting Thalassemia, Immune Thrombocytopenic Purpura, and Multiple Myeloma With Osteopenia: Complex Hematologic Case in an Adult Asian Male Patient.

We report a rare case of a 45-year-old Asian male patient with concurrent multiple myeloma (MM), immune thrombocytopenic purpura (ITP), and thalassemia trait, presenting with severe thrombocytopenia, back pain, and bleeding manifestations. The diagnosis was established through a combination of laboratory findings, imaging, and bone marrow biopsy, revealing 90% plasma cell involvement and KRAS/BRCA2 mutations. Management focused on controlling ITP with corticosteroids, rituximab, and platelet transfusions while addressing immunosuppression risks. Due to logistical limitations, MM-specific thera

Short-chain acyl post-translational modifications in cancers: Mechanisms, roles, and therapeutic implications.

Post-translational modifications (PTMs) play a pivotal role in epigenetic regulation and are key pathways for modulating protein functionality. PTMs involve the covalent attachment of distinct chemical groups, such as succinyl, crotonyl, and lactyl, at specific protein sites, which alter protein structure, function, stability, and activity, ultimately influencing biological processes. Recently, metabolically derived short-chain acylation modifications (with acyl groups containing fewer than six carbon atoms) have been progressively identified, such as butyrylation, succinylation, crotonylation

Unraveling the Anti-Cancer Mechanisms of Antibiotics: Current Insights, Controversies, and Future Perspectives.

Cancer persists as a significant global health challenge, claiming millions of lives annually despite remarkable strides in therapeutic innovation. Challenges such as drug resistance, toxicity, and suboptimal efficacy underscore the need for novel treatment paradigms. In this context, the repurposing of antibiotics as anti-cancer agents has emerged as an attractive prospect for investigation. Diverse classes of antibiotics have exhibited promising anti-cancer properties in both in vitro and in vivo studies. These mechanisms include the induction of apoptosis and cell cycle arrest, generation o

Постройте мышцы и защитите миелина.

Множественный склероз (MS) представляет собой хроническое и изнуряющее аутоиммунное заболевание центральной нервной системы (СНС), при котором иммунная реакция, основанная на CNS, разрушает миелин, что приводит к широкому спектру симптомов, включая онемение и покалывание, проблемы зрения, нарушение подвижности и т.д. Oligodendrocytes — это миелионирующие клетки в CNS, которые образуются из олигодендроголовых потомков (OPC) посредством дифференциации. Однако по целому ряду причин ОЗК не проводят различия с олигодендроцитами в РС, и в результате, стимулирование дифференциации ОЗК с олигодендроци

Sacubitril/Valsartan Ameliorates Crizotinib-Induced Cardiotoxicity in Mice.

BackgroundLung cancer is one of the major cause of death globally. Crizotinib is a first-line drug used in treating non-small-cell lung cancer (NSCLC). However, the pathophysiological mechanisms underlying its cardiotoxicity are unknown. This study investigated the mechanisms of crizotinib-induced cardiotoxicity and explored whether this toxicity can be prevented by the angiotensin receptor/neprilysin inhibitor sacubitril/valsartan.MethodsMale C57BL/6 mice were randomly divided into three groups: control, crizotinib (40 mg ⋅ kg - 1 ⋅ d - 1 for four weeks), and crizotinib + sacubitril/valsartan

Primed for global coronavirus pandemic: Emerging research and clinical outcome.

The global effort to combat and contain the coronavirus disease 2019 (COVID-19) caused by the recently discovered severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is now proceeding on a war footing. The world was slow to react to the developing crisis, but once the contours of the impending calamity became evident, the different state and non-state actors have raced to put their act together. The COVID-19 pandemic has blatantly exposed the shortcomings of our healthcare system and the limitations of medical science, despite considerable advances in recent years. To effectively tack

Revisiting potential value of antitumor drugs in the treatment of COVID-19.

Since an outbreak started in China in 2019, coronavirus disease 2019 (COVID-19) has rapidly become a worldwide epidemic with high contagiousness and caused mass mortalities of infected cases around the world. Currently, available treatments for COVID-19, including supportive care, respiratory support and antiviral therapy, have shown limited efficacy. Thus, more effective therapeutic modalities are highly warranted. Drug repurposing, as an efficient strategy to explore a potential broader scope of the application of approved drugs beyond their original indications, accelerates the process of d

Совпадение в полном тексте источника
… XRCC1 and DNA polymerase beta in cellular protection against cytotoxic DNA single-strand breaks. Cell Res. 2008;18(1):48–63. doi: 10.1038/cr.2008.7. 130. Rialdi A, Campisi L, Zhao N, Lagda AC, Pietzsch C, Ho JSY, et al. …

Chemotherapy Side-Effects: Not All DNA Damage Is Equal.

Recent advances have increased survival rates of children and adults suffering from cancer thanks to effective anti-cancer therapy, such as chemotherapy. However, during treatment and later in life they are frequently confronted with the severe negative side-effects of their life-saving treatment. The occurrence of numerous features of accelerated aging, seriously affecting quality of life, has now become one of the most pressing problems associated with (pediatric) cancer treatment. Chemotherapies frequently target and damage the DNA, causing mutations or genome instability, a major hallmark

Biotechnological Innovations from Ocean: Transpiring Role of Marine Drugs in Management of Chronic Disorders.

Marine drugs are abundant in number, comprise of a diverse range of structures with corresponding mechanisms of action, and hold promise for the discovery of new and better treatment approaches for the management of several chronic diseases. There are huge reserves of natural marine biological compounds, as 70 percent of the Earth is covered with oceans, indicating a diversity of chemical entities on the planet. The marine ecosystems are a rich source of bioactive products and have been explored for lead drug molecules that have proven to be novel therapeutic targets. Over the last 70 years, m

Fanconi anemia pathway as a prospective target for cancer intervention.

Fanconi anemia (FA) is a recessive genetic disorder caused by biallelic mutations in at least one of 22 FA genes. Beyond its pathological presentation of bone marrow failure and congenital abnormalities, FA is associated with chromosomal abnormality and genomic instability, and thus represents a genetic vulnerability for cancer predisposition. The cancer relevance of the FA pathway is further established with the pervasive occurrence of FA gene alterations in somatic cancers and observations of FA pathway activation-associated chemotherapy resistance. In this article we describe the role of th

Identification of six hub genes and analysis of their correlation with drug sensitivity in acute myeloid leukemia through bioinformatics.

BackgroundAcute myeloid leukemia (AML) is a common hematopoietic malignancy and have unsatisfactory prognosis. Our study aimed to identify hub genes in AML and explore potential biomarkers through integrated bioinformatics.MethodsMicroarray datasets were analyzed to screen the differentially expressed genes (DEGs). Functional enrichment analysis was performed, and protein-protein interaction (PPI) network was generated by the STRING (11.0) database and Cytoscape (3.7.2) software. Hub genes were screened and verified through GEPIA2 and GEO microarray database. Sensitivity of AML cell lines with

Novel Interleukin-6 Inducible Gene PDZ-Binding Kinase Promotes Tumor Growth of Multiple Myeloma Cells.

[Figure: see text] Multiple myeloma (MM) remains an intractable hematological malignancy, despite recent advances in anti-MM drugs. Here, we show that role of PDZ binding kinase (PBK) in MM tumor growth. We identified that interleukin-6 (IL-6) readily increases PBK expression. Kaplan-Meier analysis showed that the MM patients with higher expression of PBK have a significant shorter survival time compared with those with moderate/lower expression of PBK. Knockout of PBK dramatically suppressed in vivo tumor growth in MM cells, while genome editing of PBK changing from asparagine to serine subst

РНК-Сек, базирующаяся на RNA-Seq, обнаруживает воспаление олигодендроглиевой линии в аутоиммунном энцефаломиелите.

Клетки олигодендроглиевой линии (ООК) имеют решающее значение для нейронных функций поддержки, включая минелинирование и воспоминание. Появляющиеся данные свидетельствуют об их активной роли в нейроинфламмации, особенно в таких условиях, как Множественный склероз (MS). В рамках этого исследования изучается возбудительный транслатом ОРЦ в начале экспериментального аутоиммунного энцефаломиелита (EAE), который представляет собой установленную модель НР. Использование последовательности РНК на основе RiboTag в генетически модифицированных системах Olig2-Cre Мыши RiboTag, мы опознали 1,556 Регулиру

Lost in transcription: molecular mechanisms that control HIV latency.

Highly active antiretroviral therapy (HAART) has limited the replication and spread of the human immunodeficiency virus (HIV). However, despite treatment, HIV infection persists in latently infected reservoirs, and once therapy is interrupted, viral replication rebounds quickly. Extensive efforts are being directed at eliminating these cell reservoirs. This feat can be achieved by reactivating latent HIV while administering drugs that prevent new rounds of infection and allow the immune system to clear the virus. However, current approaches to HIV eradication have not been effective. Moreover,

Current landscape of gene-editing technology in biomedicine: Applications, advantages, challenges, and perspectives.

The expanding genome editing toolbox has revolutionized life science research ranging from the bench to the bedside. These "molecular scissors" have offered us unprecedented abilities to manipulate nucleic acid sequences precisely in living cells from diverse species. Continued advances in genome editing exponentially broaden our knowledge of human genetics, epigenetics, molecular biology, and pathology. Currently, gene editing-mediated therapies have led to impressive responses in patients with hematological diseases, including sickle cell disease and thalassemia. With the discovery of more e