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Hsa-miR-214-3p inhibits breast cancer cell growth and improves the tumor immune microenvironment by downregulating B7H3

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Oncology research 2025年第1期33卷 103-121页

作者： Yan Lu Kang Wang Yuanhong peng Meng Chen Lin Zhong Luji Huang F U Cheng Xindan Sheng Xin Yang Manzhao Ouyang George A Calin Zhiwei He China-America Cancer Research Institute Guangdong Medical University Dongguan 523808 China. GCP Center Shunde Hospital Southern Medical University (The First People's Hospital of Shunde Foshan) Shunde 528300 China. Department of Gastrointestinal Surgery Shunde Hospital Southern Medical University (The First People's Hospital of Shunde Foshan) Shunde 528300 China. The Second School of Clinical Medicine Southern Medical University Guangzhou 510080 China. Department of Translational Molecular Pathology The University of Texas MD Anderson Cancer Center Houston TX 77030 USA. Department of Oncology Shunde Hospital Southern Medical University (The First People's Hospital of Shunde Foshan) Shunde 528300 China.

Background:Immune checkpoint inhibitors play an important role in the treatment of solid tumors, but the currently used immune checkpoint inhibitors targeting programmed cell death-1 (PD-1), programmed cell death ligand-1 (PD-L1), and cytotoxic T-lymphocyte antigen-4 (CTLA-4) show limited clinical efficacy in many breast cancers. B7H3 has been widely reported as an immunosuppressive molecule, but its immunological function in breast cancer patients remains unclear.Methods:We analyzed the expression of B7H3 in breast cancer samples using data from the Cancer Genome Atlas Program (TCGA) and the Gene Expression Omnibus (GEO) databases. MicroRNAs were selected using the TarBase, miRTarBase, and miRBase databases. The regulatory role of the microRNA hsa-miR-214-3p on B7H3 was investigated through dual-luciferase reporter assays, which identified the specific action sites of interaction. The expression levels of B7H3 and hsa-miR-214-3p in human breast cancer tissues and adjacent normal tissues were quantified using Western blotting and quantitative PCR (qPCR). experiments were performed to observe the effects of modulating the expression of B7H3 or hsa-miR-214-3p on breast cancer cell proliferation and apoptosis. Additionally, the regulatory impact of hsa-miR-214-3p on B7H3 was examined. Enzyme-linked immunosorbent assays (ELISA) and flow cytometry were employed to assess the effects of co-cultured breast cancer cells and normal human peripheral blood mononuclear cells (PBMCs) on immune cells and associated cytokines.Results:In breast cancer tissues, the expression level of B7H3 is inversely correlated with that of hsa-miR-214-3p, as well as with the regulatory effects on breast cancercell behavior. Hsa-miR-214-3p was found to inhibit breast cancer cell growth by downregulating B7H3. Importantly, our research identified, for the first time, two binding sites for hsa-miR-214-3p on the 3' UTR of B7H3, both of which exert similar effects independently. Co-culture experime

关键词： B7H3 Breast cancer Hsa-miR-214-3p Immunotherapy

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Profile of peng Li

Science China(Life Sciences) 2017年第1期60卷 44-45页

作者： Li peng

Dr. peng Li received her B.S. degree from Beijing Normal University （China） in 1987. In 1988, she joined the De- partment of Biochemistry, University of Texas Southwest- ern Medical Center at Dallas （USA） as a CUSBEA （Chi- na-United States Biochemistry Examination and Applica- tion） student. In 1995, she received her Ph.D. degree from University of California at San Diego （U.S.A）.

关键词：李鹏北京师范大学博士学位德克萨斯圣地亚哥加州大学达拉斯生化

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Fault-induced gear meshing modulation sideband extraction and evaluation for fault diagnosis of planetary gearboxes

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Science China Technological Sciences 2025年第1期 339-355页

作者： peng ZHOU Xiaoluo YU Yang YANG Qingbo HE Zhike peng State Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong University Science and Technology on Vehicle Transmission Laboratory China North Vehicle Institute School of Mechanical Engineering Ningxia University

Gearboxes, known for their compact size and stable transmission capability, are widely used as power transmission structures in various types of mechanical equipment, such as wind turbines, helicopters, and special vehicles. However, due to harsh and non-stationary working conditions, gear surfaces often deteriorate, leading to faults such as wear, pitting, and cracking. Therefore, it is vital to monitor the working status of gearboxes and diagnose gear faults as early as possible. Gear faults can induce characteristic modulation effects near the gear meshing frequency(GMF), resulting in the appearance of faultinduced sidebands in a vibration spectrum. Extraction of these sidebands allows for the diagnosis of gear faults in a ***, when faced with a planetary gearbox having a complex configuration, strong background noise and additional faultunrelated sidebands can interfere with fault-induced sidebands, making accurate diagnosis difficult. To address these challenging issues, this paper proposes a novel fault-induced gear meshing modulation sideband extraction method. In the process,the sidebands directly related to the gear fault near the GMF are first identified and then extracted by a variational harmonic mode decomposition(VHMD) method. Accordingly, a fault-related gear meshing modulation component(GMMC) can be accurately reconstructed by summing up the extracted fault-induced sidebands. Using the GMMC, the gear fault severity can be assessed by evaluating its amplitude modulation(AM) effect. The superior performance of the proposed method is finally demonstrated by experimental data.

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A versatile synthetic strategy towards rare earth based metal-organic frameworks

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Science China Chemistry 2025年

作者： Quan Shi Yun-Hao Xu Ming-Hui Chen peng Zhao Wen-Bo Deng Ji Xiong Kai Guo Ya-Qing Feng Bao Zhang School of Chemical Engineering and Technology Tianjin University Tianjin Collaborative Innovation Center of Chemical Science and Engineering Guangdong Laboratory Chemistry & Fine Chemical Industry Jieyang Center

Rare earth metal-organic frameworks (RE-MOFs) have drawn wide attention owing to diverse network structures and various application ***,due to the unpredictable formation of the nodes,it is still challenging to design novel RE-MOFs.A novel versatile strategy was developed employing a RE-acetate complex (RE2(CH3COO)6·4H2O) as a precursor to construct RE-MOFs.2D RE-MOFs (RE-DBP) and 3D RE-MOFs (RE-TCPP) could be obtained by using dicarboxylic porphyrin ligands H2DBP and tetracarboxylic porphyrin ligands H2TCPP,*** RE-MOFs were further synthesized to verify the universality of the *** crystalline RE-MOFs could also be prepared at room temperature via the developed strategy,which could significantly promote large-scale preparation and practical application of *** proof of the concept,the performance of porphyrin-based RE-MOFs was investigated in the photocatalytic cycloaddition of CO2with *** the RE-DBP(Co) MOFs,Tb-DBP(Co) exhibited the best photocatalytic performance,which was also greater than that of the corresponding 3D MOF Tb-TCPP(Co) due to the optimal 2D structure and thus the accelerated photogenerated charge separation and transfer *** work not only provides a novel versatile strategy to design and develop RE-MOFs,but also proposes a promising approach for the potential bulk production of RE-MOFs at room temperature.

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Visualization of the protective role of estrogen against female liver fibrosis via an ER viscosity NIR fluorescent probe

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Science China Chemistry 2025年第1期 360-368页

作者： Zheng Liu Changyu Zhang Zipeng Li Wanying Ma Jia Liu Xiang Xia Ning Xu Wen Sun Jianjun Du Jiangli Fan Xiaojun peng State Key Laboratory of Fine Chemicals Dalian University of Technology Ningbo Institute of Dalian University of Technology

Endoplasmic reticulum(ER) viscosity has emerged as a new potential biomarker for hepatic fibrosis(HF). Herein, we report the first ER-targeting viscosity-responsive near-infrared(NIR) fluorescent probe HBT-PP for investigations of HF *** twisted intramolecular charge transfer(TICT) and the excited state intramolecular proton transfer(ESIPT) are combined to endow HBT-PP with the selective response towards viscosity(～62-fold) and a super large stokes shift(～320 nm). HBT-PP mainly targets organelle ER and is able to image the drug-or alcohol-induced viscosity elevation in living cells. Significantly,HBT-PP was successfully applied to visualize the gender difference in HF and the protective role of estrogen in restraining HF progression. Of note, after 10 min of stain with HBT-PP, HF lesions showed a stage-based response, indicating the potential of this probe in fast and early diagnosis of HF. These results clearly demonstrated the promising application of HBT-PP as a new tool for exploring ER viscosity-involved physiological and pathological processes.

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5-脂氧合酶及其相关产物与心脑血管损伤的研究进展

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中国药理学通报 2025年第1期41卷 13-18页

作者：黄林露彭军中南大学湘雅药学院药理学系湖南长沙410013

5-脂氧合酶(5-lipoxygenase,5-LOX)是生成重要炎性介质白三烯和促炎症消退介质的关键酶。既往研究表明,5-LOX的异常激活和白三烯的过量产生与心肌缺血/再灌注损伤、缺血性脑损伤和动脉粥样硬化等损伤相关性心脑血管疾病的发生与发展密... 详细信息

5-脂氧合酶(5-lipoxygenase,5-LOX)是生成重要炎性介质白三烯和促炎症消退介质的关键酶。既往研究表明,5-LOX的异常激活和白三烯的过量产生与心肌缺血/再灌注损伤、缺血性脑损伤和动脉粥样硬化等损伤相关性心脑血管疾病的发生与发展密切相关。靶向抑制5-LOX及其相关产物级联反应中的酶和受体能够对心脑血管损伤起到保护作用,表明5-LOX及其相关产物可能是治疗心脑血管疾病潜在的靶点。已有的相关抑制剂包括5-LOX/5-LOX激活蛋白抑制剂、白三烯A4水解酶/白三烯C4合成酶抑制剂、白三烯受体拮抗剂,这些抑制剂通过不同的机制减轻炎症,抑制促炎介质白三烯的产生,促进抗炎脂质介质的形成,在心肌缺血/再灌注损伤和动脉粥样硬化的治疗中显示出了潜在的价值。该文综述了5-LOX及其相关产物在心脑血管疾病中的作用,同时总结了相关抑制剂在心脑血管应用中的研究进展。

关键词： 5-脂氧合酶心肌缺血/再灌注心肌梗死缺血性脑损伤动脉粥样硬化 5-脂氧合酶抑制剂

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[Construction of a 17 β-estradiol sensor based on a magnetic graphene oxide/aptamer separating material]

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Se pu = Chinese journal of chromatography 2025年第1期43卷 87-95页

作者： Xin-Yu Jin Le-Yuan Chen Ya-Nna Liu Wen-Jing Xie Han-Yong peng State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China. University of Chinese Academy of Sciences Beijing 100049 China. School of Environment Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Hangzhou 310024 China.

17-Estradiol (E2) is a natural steroidal estrogen essential for a variety of physiological functions in organisms. However, external E2, which is renowned for its potent biological effects, is also considered to be an endocrine-disrupting compound (EDC) capable of disturbing the normal operation of the endocrine system, even at nanogram-per-liter (ng/L) concentrations. Studies have revealed that medical and livestock wastewater can be contaminated with E2, which poses potential risks to human health. Currently, the primary method for detecting E2 relies on liquid chromatography-mass spectrometry, which is limited with regard to on-site or large-scale sample testing due to instrumental constraints. Herein, we developed a magnetic graphene oxide (MGO)/aptamer separating material. The MGO was synthesized by creating a water-in-oil microemulsion at 90 ℃, an agarose hydrogel to load the FeO nanoparticles, and layered graphene oxide (GO). In contrast to conventional methods, such as chemical co-precipitation and solvothermal approaches, this method is more time-efficient and does not require high temperature or pressure. Moreover, the use of a physical encapsulation technique for enwrapping the FeO nanoparticles and layered GO eliminates the need for chemical modification. This approach reduces the use of harmful chemicals, ensures complete loading, and results in highly efficient encapsulation. The MGO was characterized using Fourier-transform infrared (FT-IR) spectroscopy and transmission electron microscopy (TEM), as well as dynamic light scattering (DLS) and Zeta potential analyses, which revealed that the FeO nanoparticles had been successfully loaded onto the GO to produce MGO particles mainly around 5 μm in size. Additionally, this study demonstrated that the aqueous MGO dispersion is highly stable. This substance was used to develop a fluorescent biosensor that uses a "turn-on" mechanism to rapidly and highly sensitively detect E2. MGO is capable of adsorbing a fl

关键词： 17-estradiol (E2) fluorescence biosensor magnetic graphene oxide (MGO) magnetic solid phase separation

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胰腺疾病体外细胞模型研究进展

中国药理学通报 2025年第1期41卷 23-29页

作者：朱卫丰彭立军刘婧彭淑红江西中医药大学现代中药制剂教育部重点实验室 2.江西中医药大学药学院3.江西中医药大学中医基础理论分化发展研究中心4.江西省中医病因生物学重点实验室江西南昌330004

不健康的饮食、吸烟、饮酒会引起多种胰腺疾病,包括胰腺炎、糖尿病和胰腺癌等,严重威胁人体健康。构建体外细胞模型在研究胰腺疾病的病因病机及其药物的开发及筛选中具有重要意义。目前,国内外学者已开发出多种体外胰腺疾病模型。该文... 详细信息

不健康的饮食、吸烟、饮酒会引起多种胰腺疾病,包括胰腺炎、糖尿病和胰腺癌等,严重威胁人体健康。构建体外细胞模型在研究胰腺疾病的病因病机及其药物的开发及筛选中具有重要意义。目前,国内外学者已开发出多种体外胰腺疾病模型。该文概括了常见胰腺疾病的体外细胞模型,并从模型细胞的特性、培养方式、造模方式、评价指标等方面进行综述,以期为胰腺疾病相关研究人员提供参考。

关键词：胰腺疾病细胞模型细胞特性培养方式造模方法评价指标

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多尺度差分特征增强网络的遥感影像变化检测

计算机科学与探索 2025年第1期19卷 211-222页

作者：王杰蒋伏松蒋鹏上海海洋大学工程学院上海201306 上海交通大学医学院附属第六人民医院内分泌代谢科上海200233 上海交通大学医学院附属第六人民医院计算机中心上海200233

遥感影像变化检测旨在识别不同时期遥感影像中的目标差异,近年来基于卷积神经网络的方法在遥感影像变化检测任务中取得了很大进展。然而,受光照变化和季节更替的影响,不同时期遥感影像中的伪变化问题仍然难以解决。同时,大多方法中未充... 详细信息

遥感影像变化检测旨在识别不同时期遥感影像中的目标差异,近年来基于卷积神经网络的方法在遥感影像变化检测任务中取得了很大进展。然而,受光照变化和季节更替的影响,不同时期遥感影像中的伪变化问题仍然难以解决。同时,大多方法中未充分利用多尺度特征,导致模型的性能和准确率受到一定程度的限制。针对上述问题,提出一种多尺度差分特征增强的变化检测方法。利用由孪生网络编码器和差分网络编码器组成的并行编码框架分别提取不同层级的特征,将同级的双时特征和差分特征通过拼接的方式建立两者间的互补关系。引入差分特征增强模块获取更具判别性的特征图并将其作为差分网络编码器的补充输入,丰富变化信息的同时增加模型对变化区域的关注度,使其准确地区分地物的真实变化与伪变化。为了增强特征的多样性和表达能力,使用特征错位融合模块实现语义特征的交叉融合,让每个特征中的语义信息得到充分而不同的交互。该方法在CDD数据集和LEVIRCD数据集上的F1分数分别达到了95.45%和92.04%,交并比分别达到了92.26%和82.93%,与其余八种主流方法相比均为最优,实验结果证明了该方法的有效性。

关键词：遥感影像变化检测差分增强并行编码多尺度特征融合

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