1.Acetyl-coenzyme A synthetase 2-mediated acetyl-coenzyme A accumulation promotes mitophagy and tumor growth via increased H3K27ac in hepatitis B virus-related hepatocellular carcinoma
Shan LI ; Jie HU ; Yihan YAN ; Xinrui LIU ; Xiao DONG ; Huijun LIANG ; Xin TANG ; Junji TAO ; Rong ZHANG ; Yuan HU ; Ailong HUANG ; Kai WANG ; Ni TANG
Clinical and Molecular Hepatology 2026;32(2):661-682
Background/Aims:
Acetyl coenzyme A (acetyl-CoA) is one of the most essential metabolites in cell metabolism but its function and concentration in hepatocellular carcinoma (HCC) remain elusive and controversial.
Methods:
A comprehensive analysis of acetyl-CoA levels and acetyl-CoA synthetase 2 (ACSS2) expression across a range of samples, including patient specimens from both hepatitis B virus (HBV) positive and HBV negative HCC individuals, HBV-transgenic mouse HCC models, and multiple cell lines. Furthermore, to evaluate the functional significance of ACSS2 in HBV-related HCC, we implemented both genetic and pharmacological inhibition strategies targeting ACSS2. Molecular mechanism and mitophagy assessment were revealed by cleavage under target and tagmentation sequencing, RNA sequencing, bioinformatic analyses, transmission electron microscopy and JC-1 staining.
Results:
Our study revealed a distinct metabolic signature of HBV-related HCC, marked by elevated acetyl-CoA, which was driven by ACSS2. ACSS2 was upregulated by the carbohydrate response element-binding protein in HBV-related HCC. Furthermore, ACSS2 improved tumor cell proliferation, an effect that was dependent on its enzymatic activity. Mechanistically, ACSS2-induced acetyl-CoA accumulation activated voltage-dependent anion channels 1 transcription through increased H3K27ac occupancy, which subsequently promoted mitophagy and HBV-related HCC tumorigenesis. Notably, targeting ACSS2 by depletion or inhibition with a catalytic inhibitor significantly suppressed tumor growth.
Conclusions
These findings not only illustrate the interplay between metabolic reprogramming, epigenetic modification, and tumorigenesis in the context of HBV infection, but also highlight ACSS2 as a novel metabolic vulnerability in HBV-related HCC. Therefore, targeting ACSS2 could be a novel strategy against HBV-related HCC.
2.Thermal Ablation of Pulmonary Nodules by Electromagnetic Navigation Bronchoscopy Combined With Real-Time CT-Based 3D Fusion Navigation:Report of One Case.
Yuan XU ; Qun LIU ; Chao GUO ; Yi-Bo WANG ; Xiao-Fang WU ; Chen-Xi MA ; Gui-Ge WANG ; Qian-Shu LIU ; Nai-Xin LIANG ; Shan-Qing LI
Acta Academiae Medicinae Sinicae 2025;47(1):137-141
A nodule in the right middle lobe of the lung was treated by a combination of cone-beam CT,three-dimensional registration for fusion imaging,and electromagnetic navigation bronchoscopy-guided thermal ablation.The procedure lasted for 90 min,with no significant bleeding observed under the bronchoscope.The total radiation dose during the operation was 384 mGy.The patient recovered well postoperatively,with only a small amount of blood in the sputum and no pneumothorax or other complications.A follow-up chest CT on the first day post operation showed that the ablation area completely covered the lesion,and the patient was discharged successfully.
Humans
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Bronchoscopy/methods*
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Catheter Ablation/methods*
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Cone-Beam Computed Tomography
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Electromagnetic Phenomena
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Imaging, Three-Dimensional
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Lung Neoplasms/diagnostic imaging*
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Tomography, X-Ray Computed
3.circHERC4_041 Inhibits the Fibrotic Phenotype of Cardiac Fibroblasts by Encoding Protein
Yuan GAO ; Chuan-Meng ZHOU ; Hua-Yan WU ; Ya WANG ; Ru-Shi WU ; Pei-Ying GUAN ; Jun-Tao FANG ; Jin-Dong XU ; Yu-Peng LIU ; Zhi-Qin HU ; Zhi-Xin SHAN
Chinese Journal of Biochemistry and Molecular Biology 2025;41(3):393-403
A mounting body of research suggests that circRNAs significantly contribute to the develop-ment of myocardial fibrosis.The microarray results of human circular RNA expression profile indicated that circHERC4_041 expression increased in the myocardium of patients with heart failure,RT-qPCR a-nalysis confirmed that the myocardial expression level of circHERC4_041 in individuals with heart failure were considerably elevated compared to that in healthy organ donors.Fluorescence in situ hybridization(FISH)confirmed that circHERC4_041 was abundant in the cytoplasm of human cardiomyocyte AC16.Overexpression of circHERC4_041 in mouse myocardial fibroblasts(mCFs)mediated by adenovirus in-hibited the expression of fibrosis-related proteins in mCFs.Experiments involving cell proliferation,wound healing,and Transwell assays demonstrated that overexpression of circHERC4_041 suppressed the growth and mobility of mCFs(P<0.001).Sequence analysis results suggested that circHERC4_041 con-tains potential ribosome entry sequence(IRES)and open reading frame(ORF).Western blot confirmed that circHERC4_041 could translate the 516 amino acid HERC4-516aa protein,which was mainly located in the cytoplasm of the cell.Cell functional experiments confirmed that circHERC4_041 inhibited the fi-brotic phenotype of mCFs by specifically translating HERC4-516aa(P<0.05).The specific interaction between HERC4-516aa and transglutaminase 2(TGM2)was confirmed by IP-MS screening and Co-IP i-dentification.Further results found that the degradation of TGM2 was promoted through proteasome path-way.The overexpression of TGM2 in mCFs facilitated by adenoviral vectors could counteract the suppres-sive effects of HERC4-516aa on the fibrotic phenotype of mCFs.Therefore,this study confirmed that the HERC4-516aa protein translated by circHERC4_041 can specifically bind to TGM2 to inhibit the fibrotic phenotype of myocardial fibroblasts.
4.Changing resistance profiles of Haemophilus influenzae and Moraxella catarrhalis isolates in hospitals across China:results from the CHINET Antimicrobial Resistance Surveillance Program,2015-2021
Hui FAN ; Chunhong SHAO ; Jia WANG ; Yang YANG ; Fupin HU ; Demei ZHU ; Yunsheng CHEN ; Qing MENG ; Hong ZHANG ; Chun WANG ; Fang DONG ; Wenqi SONG ; Kaizhen WEN ; Yirong ZHANG ; Chuanqing WANG ; Pan FU ; Chao ZHUO ; Danhong SU ; Jiangwei KE ; Shuping ZHOU ; Hua ZHANG ; Fangfang HU ; Mei KANG ; Chao HE ; Hua YU ; Xiangning HUANG ; Yingchun XU ; Xiaojiang ZHANG ; Wenen LIU ; Yanming LI ; Lei ZHU ; Jinhua MENG ; Shifu WANG ; Bin SHAN ; Yan DU ; Wei JIA ; Gang LI ; Jiao FENG ; Ping GONG ; Miao SONG ; Lianhua WEI ; Xin WANG ; Ruizhong WANG ; Hua FANG ; Sufang GUO ; Yanyan WANG ; Dawen GUO ; Jinying ZHAO ; Lixia ZHANG ; Juan MA ; Han SHEN ; Wanqing ZHOU ; Ruyi GUO ; Yan ZHU ; Jinsong WU ; Yuemei LU ; Yuxing NI ; Jingrong SUN ; Xiaobo MA ; Yanqing ZHENG ; Yunsong YU ; Jie LIN ; Ziyong SUN ; Zhongju CHEN ; Zhidong HU ; Jin LI ; Fengbo ZHANG ; Ping JI ; Yunjian HU ; Xiaoman AI ; Jinju DUAN ; Jianbang KANG ; Xuefei HU ; Xuesong XU ; Chao YAN ; Yi LI ; Shanmei WANG ; Hongqin GU ; Yuanhong XU ; Ying HUANG ; Yunzhuo CHU ; Sufei TIAN ; Jihong LI ; Bixia YU ; Cunshan KOU ; Jilu SHEN ; Wenhui HUANG ; Xiuli YANG ; Likang ZHU ; Lin JIANG ; Wen HE ; Chunlei YUE
Chinese Journal of Infection and Chemotherapy 2025;25(1):30-38
Objective To investigate the distribution and antimicrobial resistance profiles of clinically isolated Haemophilus influenzae and Moraxella catarrhalis in hospitals across China from 2015 to 2021,and provide evidence for rational use of antimicrobial agents.Methods Data of H.influenzae and M.catarrhalis strains isolated from 2015 to 2021 in CHINET program were collected for analysis,and antimicrobial susceptibility testing was performed by disc diffusion method or automated systems according to the uniform protocol of CHINET.The results were interpreted according to the CLSI breakpoints in 2022.Beta-lactamases was detected by using nitrocefin disk.Results From 2015 to 2021,a total of 43 642 strains of Haemophilus species were isolated,accounting for 2.91%of the total clinical isolates and 4.07%of Gram-negative bacteria in CHINET program.Among the 40 437 strains of H.influenzae,66.89%were isolated from children and 33.11%were isolated from adults.More than 90%of the H.influenzae strains were isolated from respiratory tract specimens.The prevalence of β-lactamase was 53.79%in H.influenzae strains.The H.influenzae strains isolated from children showed higher resistance rate than the strains isolated from adults.Overall,779 strains of H.influenzae did not produce β-lactamase but were resistant to ampicillin(BLNAR).Beta-lactamase-producing strains showed significantly higher resistance rates to these antimicrobial agents than the β-lactamase-nonproducing strains.Of the 16 191 M.catarrhalis strains,80.06%were isolated from children and 19.94%isolated from adults.M.catarrhalis strains were mostly susceptible to both amoxicillin-clavulanic acid and cefuroxime,evidenced by resistance rate lower than 2.0%.Conclusions The emergence of antibiotic-resistant H.influenzae due to β-lactamase production poses a challenge for clinical anti-infective treatment.Therefore,it is very important to implement antibiotic resistance surveillance for H.influenzae and guide rational antibiotic use.All local clinical microbiology laboratories should actively improve antibiotic susceptibility testing and strengthen antibiotic resistance surveillance for H.influenzae.
5.Genome-wide investigation of transcription factor footprints and dynamics using cFOOT-seq.
Heng WANG ; Ang WU ; Meng-Chen YANG ; Di ZHOU ; Xiyang CHEN ; Zhifei SHI ; Yiqun ZHANG ; Yu-Xin LIU ; Kai CHEN ; Xiaosong WANG ; Xiao-Fang CHENG ; Baodan HE ; Yutao FU ; Lan KANG ; Yujun HOU ; Kun CHEN ; Shan BIAN ; Juan TANG ; Jianhuang XUE ; Chenfei WANG ; Xiaoyu LIU ; Jiejun SHI ; Shaorong GAO ; Jia-Min ZHANG
Protein & Cell 2025;16(11):932-952
Gene regulation relies on the precise binding of transcription factors (TFs) at regulatory elements, but simultaneously detecting hundreds of TFs on chromatin is challenging. We developed cFOOT-seq, a cytosine deaminase-based TF footprinting assay, for high-resolution, quantitative genome-wide assessment of TF binding in both open and closed chromatin regions, even with small cell numbers. By utilizing the dsDNA deaminase SsdAtox, cFOOT-seq converts accessible cytosines to uracil while preserving genomic integrity, making it compatible with techniques like ATAC-seq for sensitive and cost-effective detection of TF occupancy at the single-molecule and single-cell level. Our approach enables the delineation of TF footprints, quantification of occupancy, and examination of chromatin influences on TF binding. Notably, cFOOT-seq, combined with FootTrack analysis, enables de novo prediction of TF binding sites and tracking of TF occupancy dynamics. We demonstrate its application in capturing cell type-specific TFs, analyzing TF dynamics during reprogramming, and revealing TF dependencies on chromatin remodelers. Overall, cFOOT-seq represents a robust approach for investigating the genome-wide dynamics of TF occupancy and elucidating the cis-regulatory architecture underlying gene regulation.
Transcription Factors/genetics*
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Humans
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Chromatin/genetics*
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Animals
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Binding Sites
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Mice
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DNA Footprinting/methods*
6.Acupuncture at Weizhong (BL40) attenuates acetic acid-induced overactive bladder in rats by regulating brain neural activity through the modulation of mast cells and tibial nerves.
Xin LIU ; Chao-Yue ZHANG ; Xiu-Yu DU ; Shan-Shan LI ; Yu-Qing WANG ; Yi ZHENG ; Han-Zhi DENG ; Xiao-Qin FANG ; Jia-Ying LI ; Zu-Qing WANG ; Shi-Fen XU ; Yi-Qun MI
Journal of Integrative Medicine 2025;23(1):46-55
OBJECTIVE:
The present study evaluated the effects of deep acupuncture at Weizhong acupoint (BL40) on bladder function and brain activity in a rat model of overactive bladder (OAB), and investigated the possible mechanisms around the acupuncture area that initiate the effects of acupuncture.
METHODS:
Adult female Sprague-Dawley rats were randomly divided into six groups, comprising a control group, model group, group treated with deep acupuncture at BL40, group treated with shallow acupuncture at BL40, group treated with acupuncture at non-acupoint next to BL40, and group treated with acupuncture at Xuanzhong (GB39). Urodynamic evaluation was used to observe the urination, and functional magnetic resonance imaging was used to observe the brain activation. The mechanism of acupuncture at BL40 in regulating bladder function was explored by toluidine blue staining and enzyme-linked immunosorbent assay, and the mechanism was verified by stabilizing mast cells (MCs) or blocking tibial nerve.
RESULTS:
Deep acupuncture at BL40 significantly increased the intercontraction interval in OAB rats and enhanced the mean amplitude of low frequency fluctuation of primary motor cortex (M1), periaquaductal gray matter (PAG), and pontine micturition center (PMC). It also increased the zero-lag functional connectivity between M1 and PAG and between PAG and PMC. Shallow acupuncture at BL40 and acupuncture at non-acupoint or GB39 had no effect on these indexes. Further studies suggested that deep acupuncture at BL40 increased the number and degranulation rate of MCs as well as the contents of 5-hydroxytryptamine, substance P, and histamine in the tissues around BL40. Blocking the tibial nerve by lidocaine injection or inhibiting MC degranulation by sodium cromoglycate injection obstructed the effects of acupuncture on restoring urinary function and modulating brain activation in OAB rats.
CONCLUSION
Deep acupuncture at BL40 may be more effective for inhibiting OAB by promoting degranulation of MCs around the acupoint and stimulating tibial nerve, thereby regulating the activation of the brain area that controls the lower urinary tract. Please cite this article as: Liu X, Zhang CY, Du XY, Li SS, Wang YQ, Zheng Y, Deng HZ, Fang XQ, Li JY, Wang ZQ, Xu SF, Mi YQ. Acupuncture at Weizhong (BL40) attenuates acetic acid-induced overactive bladder in rats by regulating brain neural activity through the modulation of mast cells and tibial nerves. J Integr Med. 2025; 23(1): 46-55.
Animals
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Urinary Bladder, Overactive/physiopathology*
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Mast Cells/physiology*
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Rats, Sprague-Dawley
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Female
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Acupuncture Therapy
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Acupuncture Points
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Rats
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Brain/physiopathology*
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Tibial Nerve/physiopathology*
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Acetic Acid
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Urinary Bladder/physiopathology*
9.Effect of accelerated intermittent theta burst stimulation on post-stroke depression
Lei SHAN ; Ying LIU ; Xin ZHANG ; Qianqian CHI ; Xiaomin ZHU
Chinese Journal of Rehabilitation Theory and Practice 2025;31(7):822-829
Objective To explore the effect of accelerated intermittent theta burst stimulation(aiTBS)on post-stroke depression(PSD).Methods From July,2021 to July,2023,48 PSD patients in Beijing Bo'ai Hospital were randomly assigned to control group(n=16),high-frequency repetitive transcranial magnetic stimulation(HF-rTMS)group(n=16)and aiTBS group(n=16).aiTBS group received left-sided aiTBS treatment at dorsolateral prefrontal cortex(DLPFC),HF-rTMS group received left-sided 10 Hz rTMS treatment at DLPFC,and the control group received left-sided sham stimulation treatment,for three weeks.They were evaluated with the Hamilton Depression Rating Scale(HAMD),Hamilton Anxiety Rating Scale(HAMA)and Beck Depression Inventory(BDI)before and after treat-ment,and one month of follow-up.Results One case dropped down in each group.The inter-group effect,intra-group effect and interaction effect of HAMD,HAMA and BDI scores were all significant(F>3.235,P<0.05).The post-hoc test results showed that the scores of HAMD,HMMA and BDI were lower in HF-rTMS group and aiTBS group than in the control group(P<0.05),and no significant difference was found between HF-rTMS group and aiTBS group(P>0.05).There was significant difference in the effective rate of depression improvement among three groups(χ2=7.834,P=0.019),the effective rate was higher in aiTBS group than in the control group(P<0.017),and no significant dif-ference was found between HF-rTMS group and aiTBS group(P>0.017).Conclusion aiTBS can improve the depression and anxiety symptoms of patients with PSD,with shorter treatment time,compared with HF-rTMS.
10.MicroRNA-363-5p Targets THBS3 to Regulate the Mechanism of Myocardial Apoptosis under Angiotensin Ⅱ Induction
Xin-yi HAN ; Hui-ting LIU ; Zheng-yi SHAN ; Xue-yan ZHOU ; Peng ZHAO
Progress in Modern Biomedicine 2025;25(9):1452-1469
Objective:To investigate the effect of microRNA-363-5p targeted binding to THBS3 on angiotensin Ⅱ-induced apoptosis in cardiomyocytes and its molecular mechanism.Methods:A human-derived cardiomyocyte cell line(AC16)was used to establish an in vitro cardiomyocyte apoptosis model with angiotensin Ⅱ(AngⅡ),and a dual luciferase reporter assay was performed to detect the relationship between miR-363-5p and THBS3;apoptosis rate was detected by flow cytometry,and real-time fluorescence quantitative polymerase chain reaction(RT-qPCR)was performed to detect the relative expression of microR-363-5p,ATF-6mRNA,THBS3mRNA expression;Western Blot to detect the relative expression of caspase-12,caspase-3,GRP78,Bax,Bcl-2.Results:(1)Compared with the control group,the relative expression level of miR-363-5p in AngⅡ group was significantly decreased.(2)Compared with Mir-inhibitor-NC and Mir-mimics-NC groups,the apoptosis rate of miR-inhibitor and miR-mimics groups was significantly increased and decreased,the relative expression level of Bax protein was significantly increased and decreased,and the relative expression level of Bcl-2 was decreased and increased.(3)miR-363-5p targeted binding to THBS3.(4)Compared with the THBS3-OENC group,the relative expression of Bax and caspase-3 proteins was significantly higher,the relative expression of Bcl-2 protein was significantly lower,and the apoptosis rate was higher in the THBS3-OE group.(5)Compared with the negative control group,the relative expression of Bax and caspase-3 proteins in the miR-mimcs+THBS3-OE group was significantly higher,the relative expression of Bcl-2 protein was significantly lower,the apoptosis rate was significantly higher,and the cell viability was significantly lower.(6)Compared with the miR-inhibitor group,the relative expression of GRP78 and caspase-12 was decreased in the miR-inhibitor-4-PBA group,and the apoptosis rate was significantly reduced.(7)Compared with the negative control group,the apoptosis rate was elevated in the ATF-6-OE group,and the relative expression of caspase-12 was significantly increased.(8)Compared with the negative control group,miR-inhibitor+ATF-6 siRNA group showed decreased apoptosis rate and decreased relative expression of caspase-12.Conclusions:MicroRNA-363-5p is able to target binding to THBS3 to regulate myocardial apoptosis,a process that may be mediated through the endoplasmic reticulum stress ATF-6 pathway.

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