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Статистическая колокализация вариантов генетического риска для связанных с ними аутоиммунных заболеваний в контексте общих мер контроля.

Определение того, можно ли совместно использовать потенциальные причинно-следственные варианты сопутствующих заболеваний, может выявить переплетающиеся этиологии многофакторных расстройств. Методы колокализации разъединяют общие и разные причинно-следственные варианты. Однако существующие подходы требуют независимых наборов данных. Здесь мы протянем two Методы совместной локализации, позволяющие осуществлять общий контроль, обычно используемые для сопоставления результатов исследований по различным болезням в масштабах всего генома. Наш анализ four аутоиммунные заболевания - тип 1 диабет (T1D)

Role of PAX6, TRPA1, BCL11B, MCOLN2, CUX1, EMX1 in colorectal cancer and osteosarcoma.

Colorectal cancer is a cancer that arises from the abnormal growth of cells in the colon or rectum. Osteosarcoma (OS) is a common primary bone tumor with high degree of malignancy. The configuration files for colorectal cancer dataset GSE142279 and OS datasets GSE197158 and GSE206448 were downloaded from Gene Expression Omnibus database using the platforms GPL20795, GPL20301, and GPL24676. Differentially expressed genes (DEGs) were screened and weighted gene co-expression network analysis (WGCNA) was performed. Construction and analysis of protein-protein interactions (PPI) network. Functional

BET bromodomain protein inhibition is a therapeutic option for medulloblastoma.

Medulloblastoma is the most common malignant brain tumor of childhood, and represents a significant clinical challenge in pediatric oncology, since overall survival currently remains under 70%. Patients with tumors overexpressing MYC or harboring a MYC oncogene amplification have an extremely poor prognosis. Pharmacologically inhibiting MYC expression may, thus, have clinical utility given its pathogenetic role in medulloblastoma. Recent studies using the selective small molecule BET inhibitor, JQ1, have identified BET bromodomain proteins, especially BRD4, as epigenetic regulatory factors for

Anhydroicaritin suppresses tumor progression via the PI3K/AKT signaling pathway in hepatocellular carcinoma.

BackgroundHepatocellular carcinoma (HCC) is one of the most malignant tumors. The in vitro experiments on the application of Anhydroicaritin (AHI), the active ingredient of Bushen Huayu Decoction, in HCC treatment remain limited, particularly regarding its molecular mechanism.MethodsThe TCMSP platform was used for drug ingredient screening. The GeneCards database and DisGeNET database are used to collect liver cancer targets. PPI network construction of active component-target intersection target was completed with string database. The GO and KEGG pathway analyses were performed via bioinforma

TMED2/9/10 Serve as Biomarkers for Poor Prognosis in Head and Neck Squamous Carcinoma.

Background: Head and neck squamous carcinoma (HNSC) is one of the most common malignant tumors with high incidence and poor prognosis. Transmembrane emp24 structural domain (TMED) proteins are involved in protein transport and vesicle budding processes, which have implicated various malignancies' progression. However, the roles of TMEDs in HNSC, especially in terms of development and prognosis, have not been fully elucidated. Methods: We applied TIMER 2.0, UALCAN, GEPIA 2, Kaplan-Meier plotter, GEO, The Human Protein Atlas (HPA), cBioPortal, Linkedomics, Metascape, GRNdb, STRING, and Cytoscape

Translation of Epigenetics in Cell-Free DNA Liquid Biopsy Technology and Precision Oncology.

Technological advancements in cell-free DNA (cfDNA) liquid biopsy have triggered exponential growth in numerous clinical applications. While cfDNA-based liquid biopsy has made significant strides in personalizing cancer treatment, the exploration and translation of epigenetics in liquid biopsy to clinical practice is still nascent. This comprehensive review seeks to provide a broad yet in-depth narrative of the present status of epigenetics in cfDNA liquid biopsy and its associated challenges. It highlights the potential of epigenetics in cfDNA liquid biopsy technologies with the hopes of enha

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… Since DNA is a highly negatively charged molecule that readily aggregates, DNA packaging in the form of nucleosomes allows for controlled and regulated DNA compaction in the eukaryotic genome [ 118 , 119 ]. …

System analysis based on the T cell exhaustion‑related genes identifies CD38 as a novel therapy target for ovarian cancer.

Ovarian cancer (OV) is highly heterogeneous tumor with a very poor prognosis. Studies increasingly show that T cell exhaustion is prognostically relevant in OV. The aim of this study was to dissect the heterogeneity of T cell subclusters in OV through single cell transcriptomic analysis. The single RNA-sequencing (scRNA-seq) data of five OV patients were analyzed, and six major cell clusters were identified after threshold screening. Further clustering of T cell-associated clusters revealed four subtypes. Pathways related to oxidative phosphorylation, G2M checkpoint, JAK-STAT and MAPK signalin

Identification and verification of the key genes involved in gallbladder cancer.

BackgroundGallbladder cancer (GBC) is a highly aggressive malignancy of the biliary tract. It often lacks distinct symptoms in its early stages, and no specific biomarkers have yet been identified for its diagnosis.ObjectiveTo identify key genes involved in GBC pathogenesis using public databases and bioinformatics analysis and validate these findings experimentally, providing a foundation for developing potential GBC biomarkers.MethodsAnalysis of GBC-related data from the Gene Expression Omnibus database revealed that G protein-coupled receptor 64 (GPR64) was differentially expressed in GBC.

A probiotic approach identifies a Treg-centred immunoregulation via modulation of gut microbiota metabolites in people with multiple sclerosis and healthy individuals.

BACKGROUND: Modulation of the gut microbiota composition has been suggested as a potential disease modifying therapy in immune-mediated diseases such as multiple sclerosis (MS). However, a conclusive mechanism linking gut microbiota modulation to peripheral immune responses has remained elusive so far. METHODS: In this exploratory cohort study, people with MS (pwMS) and healthy controls (HC) supplemented a lactobacilli-rich probiotic for two or six weeks and were additionally investigated six weeks after the last intake. Immune cell phenotyping was performed in blood samples, complemented by

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

Monitoring residues of pesticides in food in Brazil: A multiscale analysis of the main contaminants, dietary cancer risk estimative and mechanisms associated.

IntroductionPesticides pose a risk for cancer development and progression. People are continuously exposed to such substances by several routes, including daily intake of contaminated food and water, especially in countries that are highly pesticide consumers and have very permissive legislation about pesticide contamination as Brazil. This work investigated the relationship among pesticides, food contamination, and dietary cancer risk.MethodsAnalyzed two social reports from the Brazilian Government: the Program for Analysis of Residues of Pesticides in Food (PARA) and The National Program for

Beyond regulations at DNA levels: A review of epigenetic therapeutics targeting cancer stem cells.

In the past few years, the paramount role of cancer stem cells (CSCs), in terms of cancer initiation, proliferation, metastasis, invasion and chemoresistance, has been revealed by accumulating studies. However, this level of cellular plasticity cannot be entirely explained by genetic mutations. Research on epigenetic modifications as a complementary explanation for the properties of CSCs has been increasing over the past several years. Notably, therapeutic strategies are currently being developed in an effort to reverse aberrant epigenetic alterations using specific chemical inhibitors. In thi

A ceRNA regulatory network in systemic lupus erythematosus and its molecular interplay with cancer.

BackgroundSystemic lupus erythematosus (SLE) is an autoimmune disease defined by the production of autoantibodies and involves multiple organs and systems. Although there are reports on SLE, data on its pathogenesis is limited.MethodsUsing R language software, we constructed a competing endogenous RNA (ceRNA) network. We then utilized the Search Tool for Recurring Instances of Neighbouring Genes (STRING) and cytoHubba databases to generate a protein-protein interaction (PPI) network, which led to the identification of hub genes. The top two hub genes with the highest Maximal Clique Centrality

Изменения в отношениях между Гутом и Микробиоме-хостом после неизлечимых переживаний у пациентов с множественным склерозом.

ИСТОРИЯ ВОПРОСА И ЦЕЛИ: Было продемонстрировано, что микробные симбионты гута оказывают влияние на развитие автономного иммунитета при множественном склерозе (МС). Появляющиеся исследования указывают на важную связь между микробным интерфейсом и патофизиологией MS. Ига-секретные клетки B наблюдаются в мозге MS, и изменения в кишечной бактерии-IgA были описаны в некоторых пациентах с MS. Однако связи между кишечным микробиомом и иммунной реакцией принимающей стороны, особенно в отношении иммуномодуляции, разрушающей клетки В, остаются недостаточно изученными. Цель этого исследования заключалась

Identification of a novel cuproptosis-related gene signature for multiple myeloma diagnosis.

BackgroundMultiple myeloma (MM) ranks second among the most prevalent hematological malignancies. Recent studies have unearthed the promise of cuproptosis as a novel therapeutic intervention for cancer. However, no research has unveiled the particular roles of cuproptosis-related genes (CRGs) in the prediction of MM diagnosis.MethodsMicroarray data and clinical characteristics of MM patients were obtained from the Gene Expression Omnibus (GEO) database. Differentially expressed gene analysis, least absolute shrinkage and selection operator (LASSO) and support vector machine-recursive feature e

Unveiling the shared etiology between gastrointestinal disorders and valvular heart diseases through a genome-wide pleiotropy study.

This study explores the genetic link between gastrointestinal disorders and valvular heart disease (VHD), aiming to clarify shared mechanisms through a genome-wide pleiotropy analysis. We assessed the genetic correlation between six gastrointestinal disorders-including GERD, IBS, PUD, IBD, Crohn's disease, and ulcerative colitis-and VHD, employing methods like linkage disequilibrium score regression and pleiotropic analysis under a composite null hypothesis. Our results show significant genetic correlations, particularly with GERD (rg = 0.211), IBS (rg = 0.23), and PUD (rg = 0.21). Fifteen var

What Drives Innovation: The Canadian Touch on Liposomal Therapeutics.

Liposomes are considered one of the most successful drug delivery systems (DDS) given their established utility and success in the clinic. In the past 40⁻50 years, Canadian scientists have made ground-breaking discoveries, many of which were successfully translated to the clinic, leading to the formation of biotech companies, the creation of research tools, such as the Lipex Extruder and the NanoAssemblr™, as well as contributing significantly to the development of pharmaceutical products, such as Abelcet®, MyoCet®, Marqibo®, Vyxeos®, and Onpattro™, which are making positive impacts on patient

Gene and cell therapy of human genetic diseases: Recent advances and future directions.

Disruptions in normal development and the emergence of health conditions often result from the malfunction of vital genes in the human body. Decades of scientific research have focused on techniques to modify or substitute defective genes with healthy alternatives, marking a new era in disease treatment, prevention and cure. Recent strides in science and technology have reshaped our understanding of disorders, medication development and treatment recommendations, with human gene and cell therapy at the forefront of this transformative shift. Its primary objective is the modification of genes o

Glucosylceramide Synthase Inhibitors Induce Ceramide Accumulation and Sensitize H3K27 Mutant Diffuse Midline Glioma to Irradiation.

H3K27M mutant (mut) diffuse midline glioma (DMG) is a lethal cancer with no effective cure. The glycosphingolipids (GSL) metabolism is altered in these tumors and could be exploited to develop new therapies. We tested the effect of the glucosylceramide synthase inhibitors (GSI) miglustat and eliglustat on cell proliferation, alone or in combination with temozolomide or ionizing radiation. Miglustat was included in the therapy protocol of two pediatric patients. The effect of H3.3K27 trimethylation on GSL composition was analyzed in ependymoma. GSI reduced the expression of the ganglioside GD2

Late Breaking Orals.

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… Next, HEK293T‐TSU‐sEVs were enriched after knocking down 30 genes related to tumor suppression, DNA repair, and hypoxia to study the possible mechanisms of EV‐DNA packaging. … Furthermore, we determined the role of hypoxia in regulating EV‐DNA packaging. Funding : This research was funded by the Stiftung Universitätsmedizin Essen; Deutsche Forschungsge‐meinschaft, DFG TH2012/1‐1 and Deutsche Kinderkrebsstiftung, DKS 2018.17. …