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141. Anti-Metastatic Effects of Aprepitant on Glioblastoma Cells: Targeting the Substance P/Neurokinin-1 Pathway.

作者: Selin Engür-Öztürk.;Elif Kaya-Tilki.;Miriş Dikmen.
来源: Cancer Med. 2025年14卷15期e71148页
Glioblastoma (GB) is an aggressive brain tumor characterized by rapid proliferation, invasion, and resistance to therapy. The substance P (SP)/neurokinin-1 receptor (NK-1R) pathway contributes to GB progression by promoting angiogenesis, inflammation, and extracellular matrix remodeling. Aprepitant, an FDA-approved NK-1R antagonist, has shown potential as a therapeutic agent in glioma treatment.

142. Vitamin D₃ inhibits proliferation and the early stage of adipogenic differentiation but promotes gene expression and lipid accumulation during the late stage of adipogenic differentiation in intramuscular adipose cells of Korean native cattle.

作者: Jun Hee Lee.;Won Seob Kim.;Xue Cheng Jin.;Bo Mi Kim.;Hong Gu Lee.
来源: J Anim Sci. 2025年103卷
This study investigated the role of 1,25-dihydroxyvitamin D₃ (vitamin D₃) in regulating adipogenesis in stromal vascular (SV) cells derived from Korean native cattle (Hanwoo), focusing on its dose- (0, 1, 10, and 100 nM) and time-dependent effects across the growth phase and the early(day 3), mid (day 7), and late (day 14) stages of the differentiation phase. SV cells were isolated from the intramuscular fat of the Longissimus thoracis muscle of four female Hanwoo cattle (29 to 32 mo old) raised on the same farm. Vitamin D₃ treatment during the growth phase significantly suppressed preadipocyte proliferation in a dose-dependent manner. Hyperplasia was significantly reduced at 10 and 100 nM of treatment compared to the control group (P < 0.01). During the early differentiation phase, high concentrations of vitamin D₃ (10 and 100 nM) delayed differentiation by suppressing the expression of Zfp423 and PPARγ, key transcription factors involved in preadipocyte determination and commitment (P < 0.05). In the mid-differentiation phase, 10 and 100 nM of vitamin D₃ significantly upregulated the expression of FABP4 and PPARγ compared to the control (P < 0.01), while no significant differences were observed in lipid accumulation or droplet size. In the late differentiation phase, 10 nM significantly increased the expression of PPARγ and FABP4 compared to the control group (P < 0.01), while enhanced lipid accumulation was observed at 1 and 10 nM of treatment (P < 0.01). Notably, lipid droplet size was significantly increased only at 1 nM compared to all other treatments (P < 0.01). These findings demonstrate the dual role of vitamin D₃ in adipogenesis. During the growth phase, vitamin D₃ inhibits hyperplasia by suppressing preadipocyte proliferation in a dose-dependent manner. During the differentiation phase, vitamin D₃ exhibits stage-specific effects, delaying differentiation in the early phase while promoting adipocyte maturation in the late phase through enhanced lipid accumulation and hypertrophy.

143. Inhibitory Impact of the Amino Benzoic Derivative DAB-2-28 on the Process of Epithelial-Mesenchymal Transition in Human Breast Cancer Cells.

作者: Laurie Fortin.;Julie Girouard.;Yassine Oufqir.;Alexis Paquin.;Francis Cloutier.;Isabelle Plante.;Gervais Bérubé.;Carlos Reyes-Moreno.
来源: Molecules. 2025年30卷15期
Macrophage-mediated inflammation is known to be involved in the epithelial-mesenchymal transition (EMT) of various types of cancer. This makes macrophage-derived inflammatory factors prime targets for the development of new treatments. This study uncovers the therapeutic potential and action mechanism of DAB-2-28, a small-molecule derived from para-aminobenzoic acid, in the treatment of breast cancer. The luminal MCF-7 and the triple-negative MDA-MB-231 cancer cell lines used in this study represent, respectively, breast cancers in which the differentiation states are related to the epithelial phenotype of the mammary gland and breast cancers expressing a highly aggressive mesenchymal phenotype. In MCF-7 cells, soluble factors from macrophage-conditioned media (CM-MØ) induce a characteristic morphology of mesenchymal cells with an upregulated expression of Snail1, a mesenchymal marker, as opposed to a decrease in the expression of E-cadherin, an epithelial marker. DAB-2-28 does not affect the differential expression of Snail1 and E-cadherin in response to CM-MØ, but negatively impacts other hallmarks of EMT by decreasing invasion and migration capacities, in addition to MMP9 expression and gelatinase activity, in both MCF-7 and MDA-MB-231 cells. Moreover, DAB-2-28 inhibits the phosphorylation of key pro-EMT transcriptional factors, such as NFκB, STAT3, SMAD2, CREB, and/or AKT proteins, in breast cancer cells exposed to different EMT inducers. Overall, our study provides evidence suggesting that inhibition of EMT initiation or maintenance is a key mechanism by which DAB-2-28 can exert anti-tumoral effects in breast cancer cells.

144. Incorporation and Repair of Epigenetic Intermediates as Potential Chemotherapy Agents.

作者: Jason L Herring.;Mark L Sowers.;James W Conrad.;Linda C Hackfeld.;Bruce Chang-Gu.;Rahul Dilawari.;Lawrence C Sowers.
来源: Molecules. 2025年30卷15期
The incorporation of nucleoside analogs into DNA by polymerases, followed by their removal through base excision repair (BER), represents a promising strategy for cancer chemotherapy. In this study, we investigated the incorporation and cytotoxic effects of several nucleoside analogs-some of which are epigenetic reprogramming intermediates-in the U87 glioblastoma cell line. We found that two analogs, 5-hydroxymethyl-2'-deoxyuridine (5HmdU) and trifluorothymidine (TFT), are both cytotoxic and are efficiently incorporated into genomic DNA. In contrast, the 5-carboxy analogs-5-carboxy-2'-deoxyuridine (5CadU) and 5-carboxycytidine (5CadC)-showed no cytotoxicity and were not incorporated into DNA. Interestingly, 5-hydroxymethyl-2'-deoxycytidine (5HmdC) was cytotoxic but was not directly incorporated into DNA. Instead, it was deaminated into 5HmdU, which was then incorporated and likely responsible for the observed toxicity. 5HmdU is actively removed from DNA through the BER pathways. In contrast, TFT remains stably incorporated and is neither excised by BER nor does it hydrolyze into 5CadU-a known substrate for the DNA glycosylase SMUG1. We also found that N6-benzyladenosine (BzAdo), an inhibitor of the enzyme 2'-deoxynucleoside 5'-phosphate N-hydrolase (DNPH1), enhances the cytotoxicity of 5HmdU. However, the thymidine phosphorylase inhibitor tipiracil hydrochloride (TPI) does not increase the cytotoxic effect of TFT in U87 cells. Together, these findings highlight 5HmdU and TFT as promising chemotherapeutic agents for glioblastoma, each with distinct mechanisms of action and cellular processing.

145. Comparative Proteomics Identified Proteins in Mung Bean Sprouts Under Different Concentrations of Urea.

作者: Lifeng Wu.;Chunquan Chen.;Xiaoyu Zhou.;Kailun Zheng.;Xiaohan Liang.;Jing Wei.
来源: Molecules. 2025年30卷15期
Mung bean (Vigna radiate) sprouts are a popular choice among sprouted vegetables in Asia. Currently, the impact of nitrogen sources on the growth of mung bean sprouts remains poorly understood, and the underlying biological mechanisms responsible for the observed nonlinear growth patterns at different nitrogen levels have yet to be elucidated. In this research, in addition to conventional growth monitoring and quality evaluation, a comparative proteomics method was applied to investigate the molecular mechanisms of mung bean in response to 0, 0.025, 0.05, 0.075, and 0.1% urea concentrations. Our results indicated that mung bean sprout height and yield increased with rising urea concentrations but were suppressed beyond the L3 level (0.075% urea). Nitrate nitrogen and free amino acid content rose steadily with urea levels, whereas protein content, nitrate reductase activity, and nitrite levels followed a peak-then-decline trend, peaking at intermediate concentrations. Differential expression protein analysis was conducted on mung bean sprouts treated with different concentrations of urea, and more differentially expressed proteins participated in the L3 urea concentration. Analysis of common differential proteins among comparison groups showed that the mung bean sprouts enhanced their adaptability to urea stress environments by upregulating chlorophyll a-b binding protein and cationic amino acid transporter and downregulating the levels of glycosyltransferase, L-ascorbic acid, and cytochrome P450. The proteomic analysis uncovered the regulatory mechanisms governing these metabolic pathways, identifying 47 differentially expressed proteins (DEPs) involved in the biosynthesis of proteins, free amino acids, and nitrogen-related metabolites.

146. Gallic, Aconitic, and Crocetin Acids as Potential TNF Modulators: An Integrated Study Combining Molecular Docking, Dynamics Simulations, ADMET Profiling, and Gene Expression Analysis.

作者: Adolat Manakbayeva.;Andrey Bogoyavlenskiy.;Timur Kerimov.;Igor Yershov.;Pavel Alexyuk.;Madina Alexyuk.;Vladimir Berezin.;Vyacheslav Dushenkov.
来源: Molecules. 2025年30卷15期
Organic acids, as natural metabolites, play crucial roles in human metabolism and health. Tumor Necrosis Factor (TNF), a pivotal mediator in immune regulation and inflammation, is a key therapeutic target. We evaluated ten organic acids as TNF modulators using in silico molecular docking, followed by detailed ADMET (Absorption, Distribution, Metabolism, Excretion, and Toxicity) profiling and molecular dynamics (MD) simulations for three lead candidates: gallic, aconitic, and crocetin acids. Their effects on TNF gene expression were then assessed in vivo using a mouse leukocyte model. The in silico results indicated that crocetin had the highest TNF binding affinity (-5.6 to -4.6 kcal/mol), while gallic acid formed the most stable protein-ligand complex during MD simulations, and aconitic acid established hydrogen bond interactions. ADMET analysis suggested potential pharmacokinetic limitations, including low permeability. Contrasting its high predicted binding affinity, in vivo gene expression analysis revealed that crocetin stimulated TNF synthesis, whereas gallic and aconitic acids acted as inhibitors. This research explores organic acids as potential TNF modulators, highlighting their complex interactions and providing a foundation for developing these compounds as anti-inflammatory agents targeting TNF-mediated diseases.

147. Modulatory Effect of Curcumin on Expression of Methyltransferase/Demethylase in Colon Cancer Cells: Impact on wt p53, mutp53 and c-Myc.

作者: Roberta Santarelli.;Claudia Di Dio.;Michele Di Crosta.;Paola Currà.;Roberta Gonnella.;Mara Cirone.
来源: Molecules. 2025年30卷15期
Curcumin-mediated anti-cancer properties have been correlated with the inhibition of oncogenic molecules such as mutp53 and c-Myc. Their targeting is therapeutically significant, as p53, following point mutations, can acquire oncogenic functions, and c-Myc overexpression, due to translocations, point mutations, protein/protein interactions, or epigenetic modifications, plays a central role in cancer cell proliferation and metabolic reprogramming, particularly in colorectal cancer. In a previous study, we showed that curcumin strongly downregulated mutp53 while activating wtp53 and reduced the expression of methyltransferases such as EZH2, G9a, and MLL-1 in colon cancer cells. Based on this background, here we investigated whether the dysregulation of such methyltransferases could correlate with the effect observed on p53. We also explored whether these epigenetic changes could affect c-Myc expression in these cells. By Western blot analysis and RT-qPCR, we found that the downregulation of EZH2; G9a; and, to a lesser extent, KDM1, which was also reduced by curcumin, correlated with the decrease in mutp53 and that the reduction of EZH2 and KDM1 correlated with the activation of wtp53. Regarding c-Myc, we unveiled the occurrence of a positive feedback loop between it and MLL-1, which was inhibited by curcumin, independently of the p53 status. In conclusion, this study provides new insights into the therapeutic potential of curcumin, which involves its properties to act as an epigenetic modulator and target key molecules in colon cancer cells.

148. Anti-CD26 Antibody Suppresses Epithelial-Mesenchymal Transition in Colorectal Cancer Stem Cells.

作者: Takumi Iwasawa.;Ryo Hatano.;Satoshi Takeda.;Ayumi Kurusu.;Chikako Okamoto.;Kazunori Kato.;Chikao Morimoto.;Noriaki Iwao.
来源: Int J Mol Sci. 2025年26卷15期
CD26 (dipeptidyl peptidase-4) is a marker of colorectal cancer stem cells with high metastatic potential and resistance to therapy. Although CD26 expression is known to be associated with tumor progression, its functional involvement in epithelial-mesenchymal transition (EMT) and metastasis remains to be fully elucidated. In this study, we aimed to investigate the effects of a monoclonal anti-CD26 antibody on EMT-related phenotypes and metastatic behavior in colorectal cancer cells. We evaluated changes in EMT markers by quantitative PCR and Western blotting, assessed cell motility and invasion using scratch wound-healing and Transwell assays, and examined metastatic potential in vivo using a splenic injection mouse model. Treatment with the anti-CD26 antibody significantly increased the expression of the epithelial marker E-cadherin and reduced levels of EMT-inducing transcription factors, including ZEB1, Twist1, and Snail1, at the mRNA and protein levels. Functional assays revealed that the antibody markedly inhibited cell migration and invasion in vitro without exerting cytotoxic effects. Furthermore, systemic administration of the anti-CD26 antibody significantly suppressed the formation of liver metastases in vivo. These findings suggest that CD26 may contribute to the regulation of EMT and metastatic behavior in colorectal cancer. Our data highlight the potential therapeutic utility of CD26-targeted antibody therapy for suppressing EMT-associated phenotypes and metastatic progression.

149. Functional Express Proteomics for Search and Identification of Differentially Regulated Proteins Involved in the Reaction of Wheat (Triticum aestivum L.) to Nanopriming by Gold Nanoparticles.

作者: Natalia Naraikina.;Tomiris Kussainova.;Andrey Shelepchikov.;Alexey Tretyakov.;Alexander Deryabin.;Kseniya Zhukova.;Valery Popov.;Irina Tarasova.;Lev Dykman.;Yuliya Venzhik.
来源: Int J Mol Sci. 2025年26卷15期
Proteomic profiling using ultrafast chromatography-mass spectrometry provides valuable insights into plant responses to abiotic factors by linking molecular changes with physiological outcomes. Nanopriming, a novel approach involving the treatment of seeds with nanoparticles, has demonstrated potential for enhancing plant metabolism and productivity. However, the molecular mechanisms underlying nanoparticle-induced effects remain poorly understood. In this study, we investigated the impact of gold nanoparticle (Au-NP) seed priming on the proteome of wheat (Triticum aestivum L.) seedlings. Differentially regulated proteins (DRPs) were identified, revealing a pronounced reorganization of the photosynthetic apparatus (PSA). Both the light-dependent reactions and the Calvin cycle were affected, with significant upregulation of chloroplast-associated protein complexes, including PsbC (CP43), chlorophyll a/b-binding proteins, Photosystem I subunits (PsaA and PsaB), and the γ-subunit of ATP synthase. The large subunit of ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCo) exhibited over a threefold increase in expression in Au-NP-treated seedlings. The proteomic changes in the large subunit RuBisCo L were corroborated by transcriptomic data. Importantly, the proteomic changes were supported by physiological and biochemical analyses, ultrastructural modifications in chloroplasts, and increased photosynthetic activity. Our findings suggest that Au-NP nanopriming triggers coordinated molecular responses, enhancing the functional activity of the PSA. Identified DRPs may serve as potential biomarkers for further elucidation of nanopriming mechanisms and for the development of precision strategies to improve crop productivity.

150. Unraveling the Core of Endometriosis: The Impact of Endocrine Disruptors.

作者: Efthalia Moustakli.;Anastasios Potiris.;Themos Grigoriadis.;Athanasios Zikopoulos.;Eirini Drakaki.;Ioanna Zouganeli.;Charalampos Theofanakis.;Angeliki Gerede.;Athanasios Zachariou.;Ekaterini Domali.;Peter Drakakis.;Sofoklis Stavros.
来源: Int J Mol Sci. 2025年26卷15期
Globally, endometriosis affects almost 10% of reproductive-aged women, leading to chronic pain and discomfort. Endocrine-disrupting compounds (EDCs) seem to play a pivotal role as a causal factor. The current manuscript aims to explain potential molecular pathways, synthesize current evidence regarding EDCs as causative agents of endometriosis, and highlight implications in the general population and clinical work. A thorough review of experimental, epidemiologic, and mechanistic research studies was conducted to explain the association between EDCs and endometriosis. Among the primary EDCs under investigation are polychlorinated biphenyls, dioxins, phthalates, and bisphenol A (BPA). Despite methodological heterogeneity and some discrepancies, epidemiologic evidence supports a positive association between some increased levels of BPA, phthalates, and dioxins in urine or in blood, and endometriosis. Experiments support some effect of EDCs on endometrial cells and causing endometriosis. EDCs function as xenoestrogens, alter immune function, induce oxidative stress, and disrupt progesterone signaling. Epigenetic reprogramming may play a role in mediating EDC-induced endometriosis. Endocrine, immunological, and epigenetic pathways link EDCs and endometriosis. Prevention techniques require deeper comprehension of those factors. Causal linkages and possible treatment targets should be based on longitudinal studies and multi-omics techniques. Restriction of EDCs could be beneficial for endometriosis prevalence limitation.

151. Transcriptomic Profiling of Mouse Mesenchymal Stem Cells Exposed to Metal-Based Nanoparticles.

作者: Michal Sima.;Helena Libalova.;Zuzana Simova.;Barbora Echalar.;Katerina Palacka.;Tereza Cervena.;Jiri Klema.;Zdenek Krejcik.;Vladimir Holan.;Pavel Rossner.
来源: Int J Mol Sci. 2025年26卷15期
Mesenchymal stem cells (MSCs), i.e., adult stem cells with immunomodulatory and secretory properties, contribute to tissue growth and regeneration, including healing processes. Some metal nanoparticles (NPs) are known to exhibit antimicrobial activity and may further potentiate tissue healing. We studied the effect of Ag, CuO, and ZnO NPs after in vitro exposure of mouse MSCs at the transcriptional level in order to reveal the potential toxicity as well as modulation of other processes that may modify the activity of MSCs. mRNA-miRNA interactions were further investigated to explore the epigenetic regulation of gene expression. All the tested NPs mediated immunomodulatory effects on MSCs, generation of extracellular vesicles, inhibition of osteogenesis, and enhancement of adipogenesis. Ag NPs exhibited the most pronounced response; they impacted the expression of the highest number of mRNAs, including those encoding interferon-γ-stimulated genes and genes involved in drug metabolism/cytochrome P450 activity, suggesting a response to the potential toxicity of Ag NPs (oxidative stress). Highly interacting MiR-126 was upregulated by all NPs, while downregulation of MiR-92a was observed after the ZnO NP treatment only, and both effects might be associated with the improvement of MSCs' healing potency. Overall, our results demonstrate positive effects of NPs on MSCs, although increased oxidative stress caused by Ag NPs may limit the therapeutical potential of the combined MSC+NP treatment.

152. Epigenomics Nutritional Insights of Crocus sativus L.: Computational Analysis of Bioactive Molecules Targeting DNA Methyltransferases and Histone Deacetylases.

作者: Alessia Piergentili.;Paolo Roberto Saraceni.;Olivia Costantina Demurtas.;Barbara Benassi.;Caterina Arcangeli.
来源: Int J Mol Sci. 2025年26卷15期
Saffron (Crocus sativus L.) contains bioactive compounds with potential health benefits, including modulation of protein function and gene expression. However, their ability to tune the epigenetic machine remains poorly understood. This study employs molecular docking (AutoDock Vina 1.4), dynamics simulations, and MM/PBSA calculations to investigate the interactions between four saffron-derived molecules-crocetin, beta-D-glucosyl trans-crocetin, picrocrocin and safranal-and four epigenetic enzymes-DNMT1, DNMT3a, HDAC2, and SIRT1. Our in silico screening identifies beta-D-glucosyl trans-crocetin, one of the saffron's crocins, as a potential DNMT1 inhibitor. Along with crocetin, it also shows the ability to inhibit HDAC2 and activate SIRT1. Picrocrocin displays a resveratrol-like ability to activate SIRT1. None of the saffron-derived compounds effectively bind or inhibit DNMT3a. Among the tested molecules, safranal shows no interaction with the selected epigenetic targets. These findings highlight saffron's nutriepigenomic potential and emphasize the need for functional validation within relevant in vitro and in vivo experimental methodologies.

153. Hyaluronic and Succinic Acid: New Biostimulating Combination to Counteract Dermal and Subcutaneous Aging.

作者: Alfredo Martinez-Gutierrez.;Helena Cami.;Teresa Noya.;Susana Gómez-Escalante.;Aina Miró Llosas.;Mari Carmen González.
来源: Int J Mol Sci. 2025年26卷15期
Various biomaterials are currently employed for dermal biostimulation and filling purposes, with hyaluronic acid (HA)-based fillers among those with the most favorable safety profile, albeit exhibiting a limited biostimulatory effect. This study suggests that hyaluronic acid and succinic acid (SA) can significantly induce beneficial effects on skin cells by targeting key aging hallmarks. Human dermal senescent fibroblasts and aged adipocytes were treated with HA + SA, and various aging characteristics were examined through gene expression analysis and microscopy staining. HA was found to stimulate autophagy gene expression, while SA modulated senescence-gene expression, and the combination of these compounds induced mitophagy in senescent fibroblasts. Additionally, the HA + SA promoted adipogenesis, increased IGF1, and decreased TNFA gene expression in aged adipocytes. Furthermore, the conditioned medium from adipocytes treated with HA + SA upregulated key dermal genes such as COL3A1 and EGF. The findings of this study suggest that HA and SA compounds can be used for the biostimulation of aged skin through the regulation of senescence-associated gene expression and cell communication between dermal fibroblasts and subcutaneous adipocytes.

154. Biphasic Salt Effects on Lycium ruthenicum Germination and Growth Linked to Carbon Fixation and Photosynthesis Gene Expression.

作者: Xinmeng Qiao.;Ruyuan Wang.;Lanying Liu.;Boya Cui.;Xinrui Zhao.;Min Yin.;Pirui Li.;Xu Feng.;Yu Shan.
来源: Int J Mol Sci. 2025年26卷15期
Since the onset of industrialization, the safety of arable land has become a pressing global concern, with soil salinization emerging as a critical threat to agricultural productivity and food security. To address this challenge, the cultivation of economically valuable salt-tolerant plants has been proposed as a viable strategy. In the study, we investigated the physiological and molecular responses of Lycium ruthenicum Murr. to varying NaCl concentrations. Results revealed a concentration-dependent dual effect: low NaCl levels significantly promoted seed germination, while high concentrations exerted strong inhibitory effects. To elucidate the mechanisms underlying these divergent responses, a combined analysis of metabolomics and transcriptomics was applied to identify key metabolic pathways and genes. Notably, salt stress enhanced photosynthetic efficiency through coordinated modulation of ribulose 5-phosphate and erythrose-4-phosphate levels, coupled with the upregulation of critical genes encoding RPIA (Ribose 5-phosphate isomerase A) and RuBisCO (Ribulose-1,5-bisphosphate carboxylase/oxygenase). Under low salt stress, L. ruthenicum maintained intact cellular membrane structures and minimized oxidative damage, thereby supporting germination and early growth. In contrast, high salinity severely disrupted PS I (Photosynthesis system I) functionality, blocking energy flow into this pathway while simultaneously inducing membrane lipid peroxidation and triggering pronounced cellular degradation. This ultimately suppressed seed germination rates and impaired root elongation. These findings suggested a mechanistic framework for understanding L. ruthenicum adaptation under salt stress and pointed out a new way for breeding salt-tolerant crops and understanding the mechanism.

155. Osteogenic Differentiation of Mesenchymal Stem Cells Induced by Geometric Mechanotransductive 3D-Printed Poly-(L)-Lactic Acid Matrices.

作者: Harrison P Ryan.;Bruce K Milthorpe.;Jerran Santos.
来源: Int J Mol Sci. 2025年26卷15期
Bone-related defects present a key challenge in orthopaedics. The current gold standard, autografts, poses significant limitations, such as donor site morbidity, limited supply, and poor morphological adaptability. This study investigates the potential of scaffold geometry to induce osteogenic differentiation of human adipose-derived stem cells (hADSCs) through mechanotransduction, without the use of chemical inducers. Four distinct poly-(L)-lactic acid (PLA) scaffold architectures-Traditional Cross (Tc), Triangle (T), Diamond (D), and Gyroid (G)-were fabricated using fused filament fabrication (FFF) 3D printing. hADSCs were cultured on these scaffolds, and their response was evaluated utilising an alkaline phosphatase (ALP) assay, immunofluorescence, and extensive proteomic analyses. The results showed the D scaffold to have the highest ALP activity, followed by Tc. Proteomics results showed that more than 1200 proteins were identified in each scaffold with unique proteins expressed in each scaffold, respectively Tc-204, T-194, D-244, and G-216. Bioinformatics analysis revealed structures with complex curvature to have an increased expression of proteins involved in mid- to late-stage osteogenesis signalling and differentiation pathways, while the Tc scaffold induced an increased expression of signalling and differentiation pathways pertaining to angiogenesis and early osteogenesis.

156. Inhibitory Effect of Allyl Isothiocyanate on Cariogenicity of Streptococcus mutans.

作者: Tatsuya Akitomo.;Ami Kaneki.;Masashi Ogawa.;Yuya Ito.;Shuma Hamaguchi.;Shunya Ikeda.;Mariko Kametani.;Momoko Usuda.;Satoru Kusaka.;Masakazu Hamada.;Chieko Mitsuhata.;Katsuyuki Kozai.;Ryota Nomura.
来源: Int J Mol Sci. 2025年26卷15期
Allyl isothiocyanate (AITC) is a naturally occurring, pungent compound abundant in cruciferous vegetables and functions as a repellent for various organisms. The antibacterial effect of AITC against various bacteria has been reported, but there are no reports on the effect on Streptococcus mutans, a major bacterium contributing to dental caries. In this study, we investigated the inhibitory effect and mechanism of AITC on the survival and growth of S. mutans. AITC showed an antibacterial effect in a time- and concentration-dependent manner. In addition, bacterial growth was delayed in the presence of AITC, and there were almost no bacteria in the presence of 0.1% AITC. In a biofilm assay, the amount of biofilm formation with 0.1% AITC was significantly decreased compared to the control. RNA sequencing analysis showed that the expression of 39 genes (27 up-regulation and 12 down-regulation) and 38 genes (24 up-regulation and 14 down-regulation) of S. mutans was changed during the survival and the growth, respectively, in the presence of AITC compared with the absence of AITC. Protein-protein interaction analysis revealed that AITC mainly interacted with genes of unknown function in S. mutans. These results suggest that AITC may inhibit cariogenicity of S. mutans through a novel mechanism.

157. Nuclear Receptors in Bladder Cancer: Insights into miRNA-Mediated Regulation and Potential Therapeutic Implications.

作者: José Javier Flores-Estrada.;Adriana Jiménez.;Georgina Victoria-Acosta.;Enoc Mariano Cortés-Malagón.;María Guadalupe Ortiz-López.;María Elizbeth Alvarez-Sánchez.;Stephanie I Nuñez-Olvera.;Yussel Fernando Pérez-Navarro.;Marcos Morales-Reyna.;Jonathan Puente-Rivera.
来源: Int J Mol Sci. 2025年26卷15期
Nuclear receptors (NRs) are ligand-activated transcription factors that regulate gene expression and are involved in diverse physiological and pathological processes, including carcinogenesis. In bladder cancer (BCa), dysregulation of NR signaling pathways has been linked to tumor initiation, progression, therapy resistance, and immune evasion. Recent evidence highlights the intricate crosstalk between NRs and microRNAs (miRNAs), which are small non-coding RNAs that posttranscriptionally modulate gene expression. This review provides an integrated overview of the molecular interactions between key NRs and miRNAs in BCa. We investigated how miRNAs regulate NR expression and function and, conversely, how NRs influence miRNA biogenesis, thereby forming regulatory feedback loops that shape tumor behavior. Specific miRNA-NR interactions affecting epithelial-to-mesenchymal transition, metabolic reprogramming, angiogenesis, and chemoresistance are discussed in detail. Additionally, we highlight therapeutic strategies targeting NR-miRNA networks, including selective NR modulators, miRNA mimics and inhibitors, as well as RNA-based combinatorial approaches focusing on their utility as diagnostic biomarkers and personalized treatment targets. Understanding the molecular complexity of NR-miRNA regulation in BCa may open new avenues for improving therapeutic outcomes and advancing precision oncology in urological cancers.

158. Impact of Copper Nanoparticles on Keratin 19 (KRT19) Gene Expression in Breast Cancer Subtypes: Integrating Experimental and Bioinformatics Approaches.

作者: Safa Taha.;Ameera Sultan.;Muna Aljishi.;Khaled Greish.
来源: Int J Mol Sci. 2025年26卷15期
This study investigates the effects of copper nanoparticles (CuNPs) on KRT19 gene expression in four breast cancer cell lines (MDA-MB-231, MDA-MB-468, MCF7, and T47D), representing triple-negative and luminal subtypes. Using cytotoxicity assays, quantitative RT-PCR, and bioinformatics tools (STRING, g:Profiler), we demonstrate subtype-specific, dose-dependent KRT19 suppression, with epithelial-like cell lines showing greater sensitivity. CuNPs, characterized by dynamic light scattering (DLS) and transmission electron microscopy (TEM) with a mean size of 179 ± 15 nm, exhibited dose-dependent cytotoxicity. Bioinformatics analyses suggest KRT19's potential as a biomarker for CuNP-based therapies, pending in vivo and clinical validation. These findings highlight CuNPs' therapeutic potential and the need for further studies to optimize their application in personalized breast cancer treatment.

159. Investigating Seed Germination, Seedling Growth, and Enzymatic Activity in Onion (Allium cepa) Under the Influence of Plasma-Treated Water.

作者: Sabnaj Khanam.;Young June Hong.;Eun Ha Choi.;Ihn Han.
来源: Int J Mol Sci. 2025年26卷15期
Seed germination and early seedling growth are pivotal stages that define crop establishment and yield potential. Conventional agrochemicals used to improve these processes often raise environmental concerns, highlighting the need for sustainable alternatives. In this study, we demonstrated that water treated with cylindrical dielectric barrier discharge (c-DBD) plasma, enriched with nitric oxide (NO) and reactive nitrogen species (RNS), markedly enhanced onion (Allium cepa) seed germination and seedling vigor. The plasma-treated water (PTW) promoted rapid imbibition, broke dormancy, and accelerated germination rates beyond 98%. Seedlings irrigated with PTW exhibited significantly increased biomass, root and shoot length, chlorophyll content, and antioxidant enzyme activities, accompanied by reduced lipid peroxidation. Transcriptomic profiling revealed that PTW orchestrated a multifaceted regulatory network by upregulating gibberellin biosynthesis genes (GA3OX1/2), suppressing abscisic acid signaling components (ABI5), and activating phenylpropanoid metabolic pathways (PAL, 4CL) and antioxidant defense genes (RBOH1, SOD). These molecular changes coincided with elevated NO2- and NO3- levels and finely tuned hydrogen peroxide dynamics, underpinning redox signaling crucial for seed activation and stress resilience. Our findings establish plasma-generated NO-enriched water as an innovative, eco-friendly technology that leverages redox and hormone crosstalk to stimulate germination and early growth, offering promising applications in sustainable agriculture.

160. Dark Sweet Cherry Anthocyanins Suppressed Triple-Negative Breast Cancer Pulmonary Metastasis and Downregulated Genes Associated with Metastasis and Therapy Resistance In Vivo.

作者: Ana Nava-Ochoa.;Lauren W Stranahan.;Rodrigo San-Cristobal.;Susanne U Mertens-Talcott.;Giuliana D Noratto.
来源: Int J Mol Sci. 2025年26卷15期
Dark sweet cherries (DSC) phytochemicals have emerged as a promising dietary strategy to combat triple-negative breast cancer (TNBC). This study explored the effects of DSC extract rich in anthocyanins (ACN) as a chemopreventive agent and as a complement to doxorubicin (DOX) in treating TNBC tumors and metastasis using a 4T1 syngeneic animal model. Initiating ACN intake as a chemopreventive one week before 4T1 cell implantation significantly delayed tumor growth without any signs of toxicity. Both DOX treatment and the combination of DOX-ACN effectively delayed tumor growth rate, but DOX-ACN allowed for body weight gain, which was hindered by DOX alone. As a chemopreventive, ACN downregulated metastasis- and immune-suppression-related genes, including STAT3, Snail1, mTOR, SIRT1, TGFβ1, IKKβ, and those unaffected by DOX alone, such as HIF, Cd44, and Rgcc32. Correlations between mRNA levels seen in control and DOX groups were absent in ACN and/or DOX-ACN groups, indicating that Cd44, mTOR, Rgcc32, SIRT1, Snail1, and TGFβ1 may be ACN targets. The DOX-ACN treatment showed a trend toward enhanced efficacy involving CREB, PI3K, Akt-1, and Vim compared to DOX alone. Particularly, ACN significantly suppressed lung metastasis compared to the other groups. ACN also decreased the frequency and incidence of metastasis in the liver, heart, kidneys, and spleen, while their metastatic area (%) and number of breast cancer (BC) metastatic tumor nodules were lowered without reaching significance. Further research is needed to explore the efficacy of combining ACN with drug therapy in the context of drug resistance.
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