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Biogenesis of circRBM33 mediated by N6-methyladenosine and its function in abdominal aortic aneurysm. 由 N6-甲基腺苷介导的 circRBM33 的生物生成及其在腹主动脉瘤中的功能。
IF 2.9 3区 生物学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-12-01 Epub Date: 2024-09-09 DOI: 10.1080/15592294.2024.2392401
Yingqi Xu, Xiang Weng, Jiacong Qiu, Shizhi Wang

This study aimed to explore whether m6A modification affects the biogenesis of circRBM33, which is involved in the progression of abdominal aortic aneurysm (AAA). For in vitro experiments, vascular smooth muscle cells (VSMCs) were treated with Ang II. MeRIP‒PCR was used to assess m6A modification of circRBM33. Gene expression was measured using RT‒qPCR and Western blotting. For in vivo experiments, a mouse model of AAA was established via Ang II infusion. HE, Sirius Red and TUNEL staining was performed to evaluate pathological changes and cell apoptosis in aortic vessels. The results showed that the m6A level of circRBM33 was abnormally increased in Ang II-induced VSMCs. In addition, METTL3 positively regulated circRBM33 expression. YTHDC1 deficiency decreased circRBM33 expression but had no effect on RBM33 mRNA expression. Notably, neither METTL3 nor YTHDC1 influenced the stability of circRBM33 or RBM33 mRNA. The interaction between circRBM33 and METTL3/YTHDC1 was verified by RIP analysis. Moreover, the Ang II-induced increase in circRBM33 expression was reversed by cycloleucine (an inhibitor of m6A methylation). Importantly, the m6A modification and expression of circRBM33 in the circRBM33-m6A-mut2-expressing VSMCs were not altered by METTL3 silencing. Mechanistically, METTL3/YTHDC1 modulates the biogenesis of circRBM33 in an m6A-dependent manner. In addition, circRBM33 knockdown alleviated AAA by reducing ECM degradation in the Ang II-infused mice. In conclusion, this study demonstrated that METTL3/YTHDC1-mediated m6A modification modulates the biogenesis of circRBM33 from exons of the RBM33 gene. Moreover, knockdown of circRBM33 alleviated AAA by reducing ECM degradation, which may provide a novel therapeutic strategy for treating AAA.

本研究旨在探讨 m6A 修饰是否会影响 circRBM33 的生物生成,而 circRBM33 与腹主动脉瘤(AAA)的进展有关。在体外实验中,用 Ang II 处理血管平滑肌细胞(VSMC)。MeRIP-PCR 用于评估 circRBM33 的 m6A 修饰。使用 RT-qPCR 和 Western 印迹法测量基因表达。在体内实验中,通过 Ang II 输注建立了 AAA 小鼠模型。用 HE、天狼星红和 TUNEL 染色法评估主动脉血管的病理变化和细胞凋亡。结果显示,在 Ang II 诱导的 VSMCs 中,circRBM33 的 m6A 水平异常升高。此外,METTL3 能正向调节 circRBM33 的表达。YTHDC1 缺乏会降低 circRBM33 的表达,但对 RBM33 mRNA 的表达没有影响。值得注意的是,METTL3 和 YTHDC1 都不会影响 circRBM33 或 RBM33 mRNA 的稳定性。circRBM33 与 METTL3/YTHDC1 之间的相互作用通过 RIP 分析得到了验证。此外,环亮氨酸(m6A 甲基化抑制剂)可逆转 Ang II 诱导的 circRBM33 表达增加。重要的是,在表达 circRBM33-m6A-mut2- 的 VSMCs 中,m6A 修饰和 circRBM33 的表达不会因 METTL3 沉默而改变。从机制上讲,METTL3/YTHDC1 以 m6A 依赖性方式调节 circRBM33 的生物生成。此外,circRBM33 基因敲除可减少血管紧张素 II 注入小鼠体内 ECM 的降解,从而缓解 AAA。总之,本研究证明了 METTL3/YTHDC1 介导的 m6A 修饰调节了来自 RBM33 基因外显子的 circRBM33 的生物生成。此外,敲除 circRBM33 可通过减少 ECM 降解缓解 AAA,这可能为治疗 AAA 提供了一种新的治疗策略。
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引用次数: 0
Maternal glucose levels and late pregnancy circulating extracellular vesicle and particle miRNAs in the MADRES pregnancy cohort. MADRES 妊娠队列中的母体血糖水平与妊娠晚期循环细胞外囊泡和颗粒 miRNAs。
IF 3.7 3区 生物学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-09-18 DOI: 10.1080/15592294.2024.2404198
Elizabeth C Anderson,Helen B Foley,Joshua J Levy,Megan E Romano,Jiang Gui,Jessica L Bentz,Luis E Maldonado,Shohreh F Farzan,Theresa M Bastain,Carmen J Marsit,Carrie V Breton,Caitlin G Howe
Maternal hyperglycemia during pregnancy adversely affects maternal and child outcomes. While mechanisms are not fully understood, maternal circulating miRNAs may play a role. We examined whether continuous glucose levels and hyperglycemia subtypes (gestational diabetes, type 2 diabetes, and glucose intolerance) were associated with circulating miRNAs during late pregnancy. Seven miRNAs (hsa-miR-107, hsa-let-7b-5p, hsa-miR-126-3p, hsa-miR-181a-5p, hsa-miR-374a-5p, hsa-miR-382-5p, and hsa-miR-337-5p) were associated (p < 0.05) with either hyperglycemia or continuous glucose levels prior to multiple testing correction. These miRNAs target genes involved in pathways relevant to maternal and child health, including insulin signaling, placental development, energy balance, and appetite regulation.
孕期母体高血糖会对母婴结局产生不利影响。虽然机制尚未完全明了,但母体循环 miRNA 可能在其中发挥了作用。我们研究了持续血糖水平和高血糖亚型(妊娠糖尿病、2 型糖尿病和葡萄糖不耐受)是否与妊娠晚期的循环 miRNA 相关。七个 miRNA(hsa-miR-107、hsa-let-7b-5p、hsa-miR-126-3p、hsa-miR-181a-5p、hsa-miR-374a-5p、hsa-miR-382-5p 和 hsa-miR-337-5p)与高血糖或多重测试校正前的持续血糖水平相关(p < 0.05)。这些 miRNAs 的靶基因涉及与母婴健康相关的通路,包括胰岛素信号传导、胎盘发育、能量平衡和食欲调节。
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引用次数: 0
Exploring fatty acids from royal jelly as a source of histone deacetylase inhibitors: from the hive to applications in human well-being and health. 探索从蜂王浆中提取脂肪酸作为组蛋白去乙酰化酶抑制剂的来源:从蜂巢到在人类福祉和健康中的应用。
IF 3.7 3区 生物学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-09-10 DOI: 10.1080/15592294.2024.2400423
Fernanda Aparecida Dos Santos France,Debora Kazumi Maeda,Ana Beatriz Rodrigues,Mai Ono,Franciele Lopes Nogueira Marchetti,Marcos Martins Marchetti,Allana Cristina Faustino Martins,Roberto da Silva Gomes,Cláudia Aparecida Rainho
A differential diet with royal jelly (RJ) during early larval development in honeybees shapes the phenotype, which is probably mediated by epigenetic regulation of gene expression. Evidence indicates that small molecules in RJ can modulate gene expression in mammalian cells, such as the fatty acid 10-hydroxy-2-decenoic acid (10-HDA), previously associated with the inhibition of histone deacetylase enzymes (HDACs). Therefore, we combined computational (molecular docking simulations) and experimental approaches for the screening of potential HDAC inhibitors (HDACi) among 32 RJ-derived fatty acids. Biochemical assays and gene expression analyses (Reverse Transcriptase - quantitative Polymerase Chain Reaction) were performed to evaluate the functional effects of the major RJ fatty acids, 10-HDA and 10-HDAA (10-hydroxy-decanoic acid), in two human cancer cell lines (HCT116 and MDA-MB-231). The molecular docking simulations indicate that these fatty acids might interact with class I HDACs, specifically with the catalytic domain of human HDAC2, likewise well-known HDAC inhibitors (HDACi) such as SAHA (suberoylanilide hydroxamic acid) and TSA (Trichostatin A). In addition, the combined treatment with 10-HDA and 10-HDAA inhibits the activity of human nuclear HDACs and leads to a slight increase in the expression of HDAC-coding genes in cancer cells. Our findings indicate that royal jelly fatty acids collectively contribute to HDAC inhibition and that 10-HDA and 10-HDAA are weak HDACi that facilitate the acetylation of lysine residues of chromatin, triggering an increase in gene expression levels in cancer cells.
在蜜蜂幼虫早期发育过程中,不同的蜂王浆(RJ)饮食会形成不同的表型,这可能是由基因表达的表观遗传调控介导的。有证据表明,蜂王浆中的小分子物质可以调节哺乳动物细胞中的基因表达,例如脂肪酸 10-羟基-2-癸烯酸(10-HDA),以前曾与组蛋白去乙酰化酶(HDAC)的抑制作用有关。因此,我们结合计算(分子对接模拟)和实验方法,在 32 种 RJ 衍生脂肪酸中筛选出潜在的 HDAC 抑制剂(HDACi)。我们进行了生化测定和基因表达分析(逆转录酶-定量聚合酶链反应),以评估主要的 RJ 脂肪酸 10-HDA 和 10-HDAA(10-羟基癸酸)在两种人类癌细胞系(HCT116 和 MDA-MB-231)中的功能效应。分子对接模拟结果表明,这些脂肪酸可能与第一类 HDACs(特别是人类 HDAC2 的催化结构域)相互作用,同样也与著名的 HDAC 抑制剂(HDACi)如 SAHA(suberoylanilide hydroxamic acid)和 TSA(Trichostatin A)相互作用。此外,10-HDA和10-HDAA联合处理可抑制人类核HDAC的活性,并导致癌细胞中HDAC编码基因的表达略有增加。我们的研究结果表明,蜂王浆脂肪酸共同促成了HDAC抑制作用,而10-HDA和10-HDAA是弱HDACi,可促进染色质赖氨酸残基的乙酰化,引发癌细胞中基因表达水平的升高。
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引用次数: 0
Folate-mediated transgenerational inheritance of sperm DNA methylation patterns correlate with spinal axon regeneration 叶酸介导的精子DNA甲基化模式转代遗传与脊髓轴突再生相关
IF 3.7 3区 生物学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-07-27 DOI: 10.1080/15592294.2024.2380930
Andy Madrid, Joyce Koueik, Ligia A. Papale, Roy Chebel, Isabelle Renteria, Emily Cannon, Kirk J. Hogan, Reid S. Alisch, Bermans J. Iskandar
In mammals, the molecular mechanisms underlying transgenerational inheritance of phenotypic traits in serial generations of progeny after ancestral environmental exposures, without variation in DNA...
在哺乳动物中,表型性状在祖先暴露于环境后的连续几代后代中发生跨代遗传的分子机制,DNA...
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引用次数: 0
H4K20me3, H3K4me2 and H3K9me2 mediate the effect of ER on prognosis in breast cancer H4K20me3、H3K4me2 和 H3K9me2 介导 ER 对乳腺癌预后的影响
IF 3.7 3区 生物学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-04-21 DOI: 10.1080/15592294.2024.2343593
Cheng-Kun Xiao, Yuexiang Ren, Qianxin Chen, Yuanzhong Yang, Luying Tang, Lin Xu, Zefang Ren
Previous studies have indicated that histone methylations act as mediators in the relationship between oestrogen receptor (ER) and breast cancer prognosis, yet the mediating role has never been ass...
以往的研究表明,组蛋白甲基化在雌激素受体(ER)与乳腺癌预后之间的关系中起着介导作用,但这种介导作用从未被证实。
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引用次数: 0
SOX6 AU controls myogenesis by cis-modulation of SOX6 in cattle SOX6 AU 通过顺式调节控制牛的肌肉发生
IF 3.7 3区 生物学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-04-14 DOI: 10.1080/15592294.2024.2341578
Xin Li, Shan-Shan Xing, Sheng-Bo Meng, Zhong-Yi Hou, Lei Yu, Meng-Juan Chen, Dong-Dong Yuan, Hui-Fen Xu, Han-Fang Cai, Ming Li
Long non-coding RNAs (lncRNAs) have been shown to be involved in the regulation of skeletal muscle development through multiple mechanisms. The present study revealed that the lncRNA SOX6 AU (SRY-b...
研究表明,长非编码RNA(lncRNA)通过多种机制参与骨骼肌发育的调控。本研究发现,lncRNA SOX6 AU(SRY-b...
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引用次数: 0
Study on chromatin regulation patterns of expression vectors in the PhiC31 integration site PhiC31 整合位点表达载体的染色质调控模式研究
IF 3.7 3区 生物学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-04-09 DOI: 10.1080/15592294.2024.2337085
Xueli Liu, Qina Chen, Xudong Yin, Xiao Wang, Jinshan Ran, Wei Yu, Bin Wang
The PhiC31 integration system allows for targeted and efficient transgene integration and expression by recognizing pseudo attP sites in mammalian cells and integrating the exogenous genes into the...
PhiC31 整合系统可识别哺乳动物细胞中的伪 attP 位点,并将外源基因整合到哺乳动物细胞中,从而实现有针对性的高效转基因整合与表达。
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引用次数: 0
Vitamin C enhances co-localization of novel TET1 nuclear bodies with both Cajal and PML bodies in colorectal cancer cells 维生素 C 可提高结直肠癌细胞中新型 TET1 核体与 Cajal 和 PML 体的共定位能力
IF 3.7 3区 生物学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-04-07 DOI: 10.1080/15592294.2024.2337142
Nour El Osmani, Corinne Prévostel, Laurence Picque Lasorsa, Mohammad El Harakeh, Zeina Radwan, Hiba Mawlawi, Marwan El Sabban, Margret Shirinian, Zeina Dassouki
Deregulation of ten-eleven Translocation protein 1 (TET1) is commonly reported to induce imbalances in gene expression and subsequently to colorectal cancer development (CRC). On the other hand, vi...
据报道,十-十一转位蛋白1(TET1)的失调通常会导致基因表达失衡,进而诱发结直肠癌(CRC)。另一方面,vi...
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引用次数: 0
Trauma context exerts intergenerational effects on child mental health via DNA methylation 创伤环境通过 DNA 甲基化对儿童心理健康产生代际影响
IF 3.7 3区 生物学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-04-05 DOI: 10.1080/15592294.2024.2333654
Stefanie Pilkay, Andie Riffer, Andrew Carroll
Many people experience traumatic or negative events, but few develop mental health issues as a result. This study investigated whether newborn DNA methylation (DNAm) previously associated with mate...
许多人都经历过创伤或负面事件,但很少有人会因此产生心理健康问题。这项研究调查了新生儿DNA甲基化(DNAm)以前是否与配偶的心理健康有关。
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引用次数: 0
Methylation patterns associated with C-reactive protein in racially and ethnically diverse populations 不同种族和民族人群中与 C 反应蛋白相关的甲基化模式
IF 3.7 3区 生物学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-04-03 DOI: 10.1080/15592294.2024.2333668
Jessica I. Lundin, Ulrike Peters, Yao Hu, Farah Ammous, Christy L. Avery, Emelia J. Benjamin, Joshua C. Bis, Jennifer A. Brody, Chris Carlson, Mary Cushman, Chris Gignoux, Xiuqing Guo, Jeff Haessler, Chris Haiman, Roby Joehanes, Silva Kasela, Eimear Kenny, Tuuli Lapalainien, Daniel Levy, Chunyu Liu, Yongmei Liu, Ruth J.F. Loos, Ake Lu, Tara Matise, Kari E. North, Sungshim L. Park, Scott M. Ratliff, Alex Reiner, Stephen S. Rich, Jerome I. Rotter, Jennifer A. Smith, Nona Sotoodehnia, Russell Tracy, David Van den Berg, Huichun Xu, Ting Ye, Wei Zhao, Laura M. Raffield, Charles Kooperberg, On Behalf of the PAGE Study
Systemic low-grade inflammation is a feature of chronic disease. C-reactive protein (CRP) is a common biomarker of inflammation and used as an indicator of disease risk; however, the role of inflam...
全身性低度炎症是慢性疾病的一个特征。C反应蛋白(CRP)是一种常见的炎症生物标志物,可作为疾病风险的指标;然而,炎症在慢性疾病中的作用并不明确。
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引用次数: 0
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Epigenetics
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