Nucleosides, Nucleotides & Nucleic Acids最新文献

{"title":"Methylenetetrahydrofolate reductase (MTHFR) C677T and A1298C polymorphisms in Turkish postmenopausal women with osteoporosis.","authors":"Fulya Doğaner, Ahu Soyocak, Didem Turgut Coşan, Merih Özgen, Funda Berkan, Fezan Şahin Mutlu, İrfan Değirmenci, Hasan Veysi Güneş","doi":"10.1080/15257770.2024.2421302","DOIUrl":"https://doi.org/10.1080/15257770.2024.2421302","url":null,"abstract":"<p><p>Osteoporosis is a common age-related skeletal disease, characterized by changes in the microarchitectural structure of bone tissue and decreased bone mass, especially affecting postmenopausal women. Genetic and environmental factors affecting bone metabolism play a role in the development of osteoporosis. Methylenetetrahydrofolate reductase (MTHFR) is an important enzyme involved in the conversion of homocysteine to methionine. Genetic variations in the MTHFR gene lead to impaired function or inactivation of this enzyme. A decrease in MTHFR enzyme activity and an increase in homocysteine levels affect bone metabolism. In this study, we aimed to investigate the relationship between C677T and A1298C polymorphisms and osteoporosis in Turkish postmenopausal women. DNA samples were extracted from 200 volunteers. The PCR-RFLP technique was used to identify the MTHFR gene polymorphisms C677T and A1298C. The statistical significance of the analysis's results was assessed. C677T genotype and allele frequency distributions were not statistically different between postmenopausal osteoporosis and healthy control groups (<i>p</i> = 0.249, <i>p</i> = 0.754), while A1298C genotype and allele frequency distributions were found to be statistically significant (<i>p</i> = 0.002, <i>p</i> = 0.013). The results of our study showed that the A1298C polymorphism may be a genetic factor associated with osteoporosis in this specific population. However, the C677T polymorphism did not show a significant connection. To gain a more comprehensive understanding of the genetic basis of osteoporosis, future research with larger sample sizes and the consideration of additional genetic and environmental factors is essential. Additionally, it is crucial to account for ethnic disparities, gene-gene interactions, and gene-environment interplays. These insights can inform the development of personalized preventive and therapeutic strategies for individuals at risk of osteoporosis in diverse populations.</p>","PeriodicalId":19343,"journal":{"name":"Nucleosides, Nucleotides & Nucleic Acids","volume":" ","pages":"1-10"},"PeriodicalIF":1.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142558377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association between genetic variants (rs2839698, and rs217727) in <i>lncRNA H19</i> and Acute lymphoblastic leukemia susceptibility: a case-control study in the Iranian population.","authors":"Paria Farhadian, Mohammad Javad Mokhtari","doi":"10.1080/15257770.2024.2422007","DOIUrl":"https://doi.org/10.1080/15257770.2024.2422007","url":null,"abstract":"<p><p>Leukemia is a cancer affecting the hematopoietic system with an unclear pathogenesis. Recent studies suggest a correlation between several long non-coding RNAs (lncRNAs) and leukemia development. This study focuses on the potential link between <i>H19</i> (rs2839698 and rs217727) polymorphisms and Acute Lymphoblastic Leukemia (ALL) susceptibility. The study involved 150 patients with clinically confirmed ALL and 150 controls. This research included 150 Iranian patients, who were confirmed to have clinical ALL, and 150 healthy people as the control group. A kit was utilized to extract the DNA of all the samples. After preparing the samples, DNA genotyping was done by using the tetra-primer ARMS-PCR method. After adjusting for age using multivariate logistic regression analysis, individuals carrying the CT genotype of rs2839698 were found to have a significantly 0.32-fold reduced risk of ALL compared with carriers of the CC genotype. Furthermore, a significant 0.48-fold reduction in ALL risk was observed in patients with CT+TT genotype rs2839698 compared with CC. Moreover, the over-dominant model was applied to compare the CT genotype of rs2839698 with its CC+TT genotype, which showed a significant 0.36-fold reduction of ALL risk. Notably, the cases of ALL and the control group were not significantly different in terms of their genotype and allele frequencies of rs217727 polymorphism. Yet, the TT haplotype was significantly associated with ALL risk (OR: 1.64, <i>p</i> = 0.025). Following the findings of this study, it can be concluded that <i>H19</i> SNP rs2839698, rather than rs217727, might act as an innovative susceptibility marker for ALL leukemia.</p>","PeriodicalId":19343,"journal":{"name":"Nucleosides, Nucleotides & Nucleic Acids","volume":" ","pages":"1-15"},"PeriodicalIF":1.1,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142522548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalytic cleave of an RNA substrate that bypasses the reorganization of its secondary structure during substrate recognition by a <i>trans</i>-acting VS ribozyme.","authors":"Yuki Miyazaki, Ryu Nakane, Shogo Tanishi, Shigeyoshi Matsumura, Yoshiya Ikawa","doi":"10.1080/15257770.2024.2421307","DOIUrl":"10.1080/15257770.2024.2421307","url":null,"abstract":"<p><p>Varkud satellite ribozyme (VS ribozyme) is a class of catalytic RNA with self-cleavage activity. The wild-type VS ribozyme has structural modularity with a relatively large catalytic module (H2-H6 elements) and a small substrate module (H1 element). The two modules can be dissected physically, and the substrate H1 RNA is recognized and then cleaved by the rest of the parent ribozyme serving as catalytic RNA. We characterized the catalytic properties of a bimolecular VS ribozyme developed and employed for an in-droplet evolution experiment of the VS ribozyme. We examined the effects of polyamines and several divalent metal ions. The results obtained in this study would be useful for the optimization of laboratory evolution of the VS ribozyme.</p>","PeriodicalId":19343,"journal":{"name":"Nucleosides, Nucleotides & Nucleic Acids","volume":" ","pages":"1-16"},"PeriodicalIF":1.1,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142522549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MicroRNA‑374a‑5p/ANLN axis promotes malignant progression of Oral squamous cell carcinoma.","authors":"Shu Wu, Danping Li, Peipei Han, Limei Li, Jun Zhao, Haishan Zhang, Xiaohui Zhou, Ping Li, Yingxi Mo","doi":"10.1080/15257770.2024.2419555","DOIUrl":"https://doi.org/10.1080/15257770.2024.2419555","url":null,"abstract":"<p><strong>Background: </strong>Recent research has revealed a significant association between Anillin (ANLN) and miR-374a‑5p with the progression of tumors. Additionally, bioinformatics analysis indicated an inverse relationship in transcript expression levels between ANLN and miR-374a-5p. However, the specific mechanisms driving the miR-374a-5p/ANLN signaling axis in oral squamous cell carcinoma (OSCC) have not been thoroughly explored.</p><p><strong>Methods: </strong>ANLN and miR-374a‑5p expression were evaluated within OSCC cell lines and tissues by RT-qPCR. Using bioinformatics databases, it has been demonstrated that the ANLN gene could be a target of miR-374a-5p. MiR-374a‑5p and ANLN correlation could be assessed via the dual-luciferase reporter assay and western blotting techniques. Functional studies were employed to investigate the behavioral patterns of miR-374a‑5p within OSCC cells.</p><p><strong>Results: </strong>miR-374a‑5p expression could be remarkably downregulated within both OSCC tissues and cells, coinciding with high ANLN expression. ANLN was a specific target gene for miR-374a‑5p by luciferase function assay. The expression of miR-374a‑5p could serve as a diagnostic biomarker and independently predict a poor prognosis in patients with OSCC, and the counteractive effect of upregulating miR-374a‑5p was observed on the proliferative, migratory, and invasive capabilities of OSCC cells.</p><p><strong>Conclusions: </strong>The findings suggest that the miR-374a‑5p/ANLN signaling axis potentially modulates the advancement of OSCC, and miR-374a‑5p may serve as potential therapeutic targets of oral cancer.</p>","PeriodicalId":19343,"journal":{"name":"Nucleosides, Nucleotides & Nucleic Acids","volume":" ","pages":"1-16"},"PeriodicalIF":1.1,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142504968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Homology modelling, molecular docking studies and synthesis of aminopyrimidines as inhibitors for deoxynucleoside kinase analogues in cancer chemoprevention.","authors":"Jainey P James, Mariyam Jouhara B M, Sneh Priya, Divya Jyothi, Rajalakshimi Vasudevan","doi":"10.1080/15257770.2024.2417898","DOIUrl":"https://doi.org/10.1080/15257770.2024.2417898","url":null,"abstract":"<p><p>The development of alternative anticancer agents with minimal side effects has become more critical due to the rising recurrence of mammalian malignancies and the severe side effects of chemotherapeutic treatments. Kinases are an essential target for neostatic impact as they play an important role in the modulation of growth factor signalling. Our work aims to screen novel nine-series of thiazole-based aminopyrimidines and sulphaminopyrimidines against the enzymes mitochondrial thymidine kinase 2, deoxyguanosine kinase (2OCP), deoxycytidine kinase (2QRN) and thymidylate kinase (1E2Q) by molecular docking, synthesise and to study their in vitro inhibitory studies. The synthesised compounds were characterised by Infrared, Nuclear magnetic resonance and Mass spectroscopy. In silico studies, compound 4c stands out among the series, with a reported docking score ranging from -6 to -8 Kcal/mol against all the analogue kinases. The in vitro cytotoxicity assay against human small-cell lung carcinoma (A-549) has shown that 5c (IC₅₀ = 53.9 µM) has an excellent cytotoxic effect over 4c (IC₅₀= 68.68 µM). The reason might be the presence of the benzene sulphonamide group, which enhances their anticancer action. To conclude, the compounds 4c and 5c were found to be potent inhibitors of the deoxynucleoside kinases. In vivo studies must further verify these to prove their potent neostatic effect.</p>","PeriodicalId":19343,"journal":{"name":"Nucleosides, Nucleotides & Nucleic Acids","volume":" ","pages":"1-21"},"PeriodicalIF":1.1,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142504967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gene expression of MTATP6 and cytochrome P450 in MCF-7 and MDA-MB -231 breast cancer cell lines with juglone and curcumin supplemented.","authors":"Emine Nedime Korucu, Saliha Aydemir, Esma Menevse, Dudu Erkoc Kaya, Ali Ahmed Azzawri","doi":"10.1080/15257770.2024.2418907","DOIUrl":"https://doi.org/10.1080/15257770.2024.2418907","url":null,"abstract":"<p><p>It is aimed to determine the effects of naphthoquinones as juglone and curcumin application on cell viability and expression analyzes of CYP3A4 and MTATP6 genes in MCF-7 and MDA-MB-231 human breast cancer cell lines. MCF-7 and MDA-MB-231 cells were incubated, were replaced with containing various concentrations of 5, 10, 15 μM curcumin and 5, 10, 15 μM juglone for MCF-7 and 1, 5, 10 μM curcumin and 1, 2, 3 μM juglone for MDA-MB-231 for 24 h. CYP3A4 and MTATP6 gene expression levels in both cell lines were determined by quantitative real-time polymerase chain reaction (qPCR) method and western blot method. IC₅₀ values for 24 h were found as 22.41 μM for curcumin, and 16.27 μM for juglone in MCF-7, and 10.43 μM for curcumin, and 3.42 μM for juglone in MDA-MB-231 cells. Curcumin showed anti-proliferative, and antioxidant effects. CYP3A4 and MTATP6 gene expressions were decreased in MCF-7 breast cancer cell line when the cells treated with juglone or curcumin. CYP3A4 and MTATP6 gene expressions were decreased at all application doses of juglone in MDA-MB-231 cells whereas CYP3A4 and MTATP6 protein levels were only decreased at 10 μM curcumin compared with the control group.</p>","PeriodicalId":19343,"journal":{"name":"Nucleosides, Nucleotides & Nucleic Acids","volume":" ","pages":"1-17"},"PeriodicalIF":1.1,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142504966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<i>Escherichia coli</i> Orf135 (NudG) mutant protein specific for oxidized dATP.","authors":"Hiroyuki Kamiya","doi":"10.1080/15257770.2024.2413878","DOIUrl":"https://doi.org/10.1080/15257770.2024.2413878","url":null,"abstract":"<p><p>Damaged 2'-deoxyribonucleotides cause mutations, cancer, cell death, and aging. The <i>Escherichia coli</i> Orf135 (NudG) protein catalyzes the hydrolysis of various 2'-deoxyribonucleotides including an oxidized form of dATP, 2-oxo-1,2-dihydro-2'-deoxyadenosine 5'-triphosphate (dA^OTP, 2-hydroxy-2'-deoxyadenosine 5'-triphosphate). The best substrate is 5-methyl-2'-deoxycytidine 5'-triphosphate (dC^mTP), and the protein prefers dC^mTP over dA^OTP by ∼200-fold in vitro. To make the enzyme specific for the mutagenic nucleotide dA^OTP, a double mutant protein (E33A plus D118E) was designed and produced in <i>E. coli</i>. The purified mutant protein showed one order of magnitude higher dA^OTP preference over dC^mTP. The split protein based on this mutant may potentially be used to detect dA^OTP in living cells.</p>","PeriodicalId":19343,"journal":{"name":"Nucleosides, Nucleotides & Nucleic Acids","volume":" ","pages":"1-8"},"PeriodicalIF":1.1,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142406666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Obituary to Lynette Fairbanks, PhD.","authors":"Tony Marinaki, Godefridus J Peters, John Duley","doi":"10.1080/15257770.2024.2413140","DOIUrl":"https://doi.org/10.1080/15257770.2024.2413140","url":null,"abstract":"<p><p>This paper remembers Lynette Fairbanks, a Principal Clinical Biochemist, working at the Purine Research Laboratory of Guy's and St Thomas' Hospitals, London, England, founded by Anne Simmonds. She was a driving force in the laboratory guiding research and screening for inborn errors of metabolism, while she was a great supervisor. Just being retired she passed away in January 2023.</p>","PeriodicalId":19343,"journal":{"name":"Nucleosides, Nucleotides & Nucleic Acids","volume":" ","pages":"1-2"},"PeriodicalIF":1.1,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142392169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Theoretical and experimental investigation of mixed-ligand metal(II) Schiff base complexes using maleic acid as the auxiliary ligand.","authors":"Nazeer Mohamed Nasar, Michael Samuel, Porkodi Jayaraman, Freeda Selva Sheela Selvaraj, Natarajan Raman","doi":"10.1080/15257770.2024.2410954","DOIUrl":"https://doi.org/10.1080/15257770.2024.2410954","url":null,"abstract":"<p><p>This work is focused on the synthesis of several transition metal complexes [ML(MA)], where M = Copper (II), Zinc (II), Cobalt (II) and Nickel (II), MA = maleic acid and L = Schiff base generated from benzene-1,2-diamine [<i>o-</i>phenylenediamine] and 4-chlorobenzaldehyde. The characterization using Fourier-Transform Infrared, Nuclear Magnetic Resonance spectroscopy, Ultraviolet-Visible spectra, Mass, Electro Paramagnetic Resonance and elemental analysis confirm the square planar geometry of the complexes. The <i>in vitro</i> antimicrobial potential of the complexes has been tested by the broth dilution method and the antioxidant method has been done by free radical scavenging analysis. The <i>in vitro</i> methods reveal the outstanding biological characteristics of the copper complexes. The molecular structure of the ligand and its metal (II) complexes has been optimized using Density Functional Theory studies performed by the Gaussian-09 software and their parameters have been discussed. Natural Bond Orbital and Frontier Molecular Orbital analyses have assessed the presence of a metal-ligand bond in complexes. In addition, molecular docking studies have also been performed on antiviral activity of all the complexes using a viral protein and their interacting amino acids.</p>","PeriodicalId":19343,"journal":{"name":"Nucleosides, Nucleotides & Nucleic Acids","volume":" ","pages":"1-21"},"PeriodicalIF":1.1,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142375760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comprehensive analysis of the expression and prognosis for cyclin-dependent protein kinase family in osteosarcoma.","authors":"Jianshui Mao, Hui-Min Li, Zhidan Huang","doi":"10.1080/15257770.2024.2410957","DOIUrl":"https://doi.org/10.1080/15257770.2024.2410957","url":null,"abstract":"<p><strong>Background and objective: </strong>Cyclin-dependent protein kinases (CDKs) have been suggested as prospective therapeutic targets because they control processes vital to the survival and growth of cancer cells. However, research on the varied CDK expression profiles and prognostic factors in osteosarcoma is still lacking.</p><p><strong>Methods: </strong>The osteosarcoma microRNA (GSE65071) and gene expression profiles were retrieved from the Gene Expression Omnibus (GEO) database (GSE42352). A substantial variation in prognosis was discovered in CDKs using the TARGET database. Cytoscape was used to construct the miRNAs-CDKs network, and functional and pathway enrichment analyses were completed. It was looked at how immune checkpoint genes, m6A-related genes, and CDKs interact.</p><p><strong>Results: </strong>In patients with osteosarcoma compared to normal samples, CDK1-5, CDK18, CDK16, and CDK17 gene expression levels were considerably greater, whereas CDK7-9, CDK11B, CDK16, and CDK20 gene expression levels were significantly lower. Patients with osteosarcoma who had low CDK3 and 18 gene levels or high CDK6, 9 gene levels were predicted to have a favorable prognosis and a long-life expectancy. Immune checkpoint genes, m6A-related gene expression, and CDKs expression all showed some connection. Finally, a network of crucial CDKs and miRNAs was constructed.</p><p><strong>Conclusion: </strong>According to our research, CDK3, 6, 9, and 18 have been identified as possible therapeutic targets for osteosarcoma, and CDKs may have a role in controlling m6A mutations in tumor cells as well as immune checkpoint regulation.</p>","PeriodicalId":19343,"journal":{"name":"Nucleosides, Nucleotides & Nucleic Acids","volume":" ","pages":"1-24"},"PeriodicalIF":1.1,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142365951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}