Emilia A. Korczmar, Anna K. Bookstaver, Ellison Ober, Adam N. Goldfarb, D. G. Tenen, B. Trinh
{"title":"Transcriptional Regulation of the Lineage-Determining Gene PU.1 in Normal and Malignant Hematopoiesis: Current Understanding and Therapeutic Perspective","authors":"Emilia A. Korczmar, Anna K. Bookstaver, Ellison Ober, Adam N. Goldfarb, D. G. Tenen, B. Trinh","doi":"10.31083/j.fbs1602010","DOIUrl":"https://doi.org/10.31083/j.fbs1602010","url":null,"abstract":"The ETS transcription factor PU.1 plays an essential role in blood cell development. Its precise expression pattern is governed by cis-regulatory elements (CRE) acting at the chromatin level. CREs mediate the fine-tuning of graded levels of PU.1 , deviations of which can cause acute myeloid leukemia. In this review, we perform an in-depth analysis of the regulation of PU.1 expression in normal and malignant hematopoiesis. We elaborate on the role of trans-acting factors and the biomolecular interplays in mediating local chromatin dynamics. Moreover, we discuss the current understanding of CRE bifunctionality exhibiting enhancer or silencer activities in different blood cell lineages and future directions toward gene-specific chromatin-targeted","PeriodicalId":510139,"journal":{"name":"Frontiers in Bioscience-Scholar","volume":"2 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141006435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Blagov, Konstantin Rufanov, Khokhlova Irina, Vasily Sukhorukov, Andrey Goncharov, E. Pleshko, A. Orekhov
{"title":"The Significance of Lipoproteins in the Development of Obesity","authors":"A. Blagov, Konstantin Rufanov, Khokhlova Irina, Vasily Sukhorukov, Andrey Goncharov, E. Pleshko, A. Orekhov","doi":"10.31083/j.fbs1601008","DOIUrl":"https://doi.org/10.31083/j.fbs1601008","url":null,"abstract":"Disruption of lipoprotein metabolism plays an important role in the development of several cardiovascular, inflammatory, and metabolic diseases. This review examines the importance of different types of lipoproteins and the role they play in the development of dyslipidemia in obesity. The causes and consequences associated with the disruption of lipid metabolism and its significance in the pathogenesis of obesity are considered. The relationship between such pathological processes, which occur alongside obesity as dyslipidemia and inflammation, is determined. In view of the current efficacy and toxicity limitations of currently approved drugs, natural compounds as potential therapeutic agents in the treatment of obesity are considered in the review. The complex mechanisms of lipid metabolism normalization in obesity found for these compounds can serve as one of the confirmations of their potential efficacy in treating obesity. Nanoparticles can serve as carriers for the considered drugs, which can improve their pharmacokinetic properties.","PeriodicalId":510139,"journal":{"name":"Frontiers in Bioscience-Scholar","volume":"44 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140234340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Two-Genome Portrayal of Mitochondrial Disorders: A Review with Clinical Presentations","authors":"Jude M. Abadie","doi":"10.31083/j.fbs1601007","DOIUrl":"https://doi.org/10.31083/j.fbs1601007","url":null,"abstract":"Disorders of mitochondrial function are responsible for many inherited neuromuscular and metabolic diseases. Their combination of high mortality, multi-systemic involvement, and economic burden cause devastating effects on patients and their families. Molecular diagnostic tools are becoming increasingly important in providing earlier diagnoses and guiding more precise therapeutic treatments for patients suffering from mitochondrial disorders. This review addresses fundamental molecular concepts relating to the pathogenesis of mitochondrial dysfunction and disorders. A series of short cases highlights the various clinical presentations, inheritance patterns, and pathogenic mutations in nuclear and mitochondrial genes that cause mitochondrial diseases. Graphical and tabular representations of the results are presented to guide the understanding of the important concepts related to mitochondrial molecular genetics and pathology. Emerging technology is incorporating preimplantation genetic testing for mtDNA disorders, while mitochondrial replacement shows promise in significantly decreasing the transfer of diseased mitochondrial DNA (mtDNA) to embryos. Medical professionals must maintain an in-depth understanding of the gene mutations and molecular mechanisms underlying mitochondrial disorders. Continued diagnostic advances and comprehensive management of patients with mitochondrial disorders are essential to achieve robust clinical impacts from comprehensive genomic testing. This is especially true when supported by non-genetic tests such as biochemical analysis, histochemical stains, and imaging studies. Such a multi-pronged investigation should improve the management of mitochondrial disorders by providing accurate and timely diagnoses to reduce disease burden and improve the lives of patients and their families","PeriodicalId":510139,"journal":{"name":"Frontiers in Bioscience-Scholar","volume":"77 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140241736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Tolstik, T. Kirichenko, A. Bogatyreva, Y. Markina, Vladislav A. Kalmykov, A. Markin
{"title":"The Relationship between Mitochondrial Genome Mutations in Monocytes and the Development of Obesity and Coronary Heart Disease","authors":"T. Tolstik, T. Kirichenko, A. Bogatyreva, Y. Markina, Vladislav A. Kalmykov, A. Markin","doi":"10.31083/j.fbs1601006","DOIUrl":"https://doi.org/10.31083/j.fbs1601006","url":null,"abstract":"Background : Metabolic disorders, including obesity, are often accompanied by an increased risk of cardiovascular complications. Monocytes are the common link between obesity and cardiovascular diseases (CVDs). The bias of innate cellular immunity towards pro-inflammatory activation stimulates the development of diseases associated with chronic inflammation, in particular metabolic disorders, including obesity, as well as CVDs. Disorders in the functional state of monocytes and activation of inflammation may be associated with mitochondrial dysfunction. Mutations accumulating in mitochondrial DNA with age may lead to mitochondrial dysfunction and may be considered a potential marker for developing chronic inflammatory diseases. Methods : The present study aimed to study the relationship between mitochondrial heteroplasmy in CD14 + monocytes and cardiovascular risk factors in 22 patients with obesity and coronary heart disease (CHD) by comparing them to 22 healthy subjects. Results : It was found that single-nucleotide variations (SNV) A11467G have a negative correlation with total cholesterol (r = –0.82, p < 0.05), low density lipoproteins (LDL) (r = –0.82, p < 0.05), with age (r = –0.57, p < 0.05) and with mean carotid intima-media thickness (cIMT) (r = –0.43, p < 0.05) and a positive correlation with HDL level (r = 0.71, p < 0.05). SNV 576insC positively correlated with body mass index (BMI) (r = 0.60, p < 0.001) and LDL level (r = 0.43, p < 0.05). SNV A1811G positively correlated with mean cIMT (r = 0.60, p < 0.05). Conclusions : It was revealed that some variants of mitochondrial DNA (mtDNA) heteroplasmy are associated with CVD risk factors. The results demonstrate the potential for using these molecular genetic markers to develop personalized CVD and metabolic disorder treatments.","PeriodicalId":510139,"journal":{"name":"Frontiers in Bioscience-Scholar","volume":"287 1‐2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140247003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Edwin G. Peña‐Martínez, José A. Rodríguez-Martínez
{"title":"Decoding Non-coding Variants: Recent Approaches to Studying Their Role in Gene Regulation and Human Diseases","authors":"Edwin G. Peña‐Martínez, José A. Rodríguez-Martínez","doi":"10.31083/j.fbs1601004","DOIUrl":"https://doi.org/10.31083/j.fbs1601004","url":null,"abstract":"Genome-wide association studies (GWAS) have mapped over 90% of disease-and quantitative-trait-associated variants within the non-coding genome. Non-coding regulatory DNA (e.g., promoters and enhancers) and RNA (e.g., 5 ′ and 3 ′ UTRs and splice sites) are essential in regulating temporal and tissue-specific gene expressions. Non-coding variants can potentially impact the phenotype of an organism by altering the molecular recognition of the cis -regulatory elements, leading to gene dysregulation. However, determining causality between non-coding variants, gene regulation, and human disease has remained challenging. Experimental and computational methods have been developed to understand the molecular mechanism involved in non-coding variant interference at the transcriptional and post-transcriptional levels. This review discusses recent approaches to evaluating disease-associated single-nucleotide variants (SNVs) and determines their impact on transcription factor (TF) binding, gene expression, chromatin conformation","PeriodicalId":510139,"journal":{"name":"Frontiers in Bioscience-Scholar","volume":"9 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140091182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}