1.PRMT1-mediated asymmetric dimethylation of arginine residue 602 in DDX1 promotes cholangiocarcinoma progression
Wenzheng LIU ; Yangwei LIAO ; Yiyang KUAI ; Xin GAO ; Xingmin YAN ; Jingjing LI ; Junsheng CHEN ; Jukun SU ; Jingcong ZHOU ; Yizhu KONG ; Siqin HUANG ; Zhiwei ZHANG ; Feng PENG ; Bing WANG ; Yongjun CHEN
Clinical and Molecular Hepatology 2026;32(2):843-865
Background/Aims:
Cholangiocarcinoma (CCA) is a primary malignant neoplasm with an extremely poor prognosis. While combined chemoradiotherapy has been demonstrated to delay CCA progression to a certain extent, the absence of specific molecular biomarkers or targets significantly hinders the diagnosis and treatment of CCA.
Methods:
Through cross-analysis of proteomics and ADMA modificationomics, we identified DDX1 overexpressed in CCA with elevated R602-ADMA modifications. HPLC-MS/MS identified PRMT1 as the methyltransferase and USP10 as the deubiquitinating enzyme for DDX1. Immunofluorescence and nuclear-cytoplasmic partitioning experiments confirmed DDX1’s nuclear localization. GO and KEGG analyses clarify the biological functions of DDX1 in response to hypoxia. RNA-seq transcriptomics analyzed key pathways influenced by DDX1. A hydrodynamic in situ CCA mouse model was established to validate the chemopreventive effects of the PRMT1-specific inhibitor GSK715 on CCA development.
Results:
DDX1 promotes CCA progression both in vivo and in vitro and can be inhibited by GSK715. Mechanistically, PRMT1 mediates ADMA modification at position R602 of DDX1. This modification promotes DDX1 nuclear localization by recruiting USP10 to deubiquitinate DDX1, while simultaneously inhibiting PRMT1 degradation. DDX1 promotes the transcription of PRMT1 and USP10 by binding to the mRNA 3’UTR region, establishing a positive feedback regulatory pathway. This mechanism promotes the occurrence and development of CCA and can serve as a target for the inhibitor GSK715 to suppress CCA progression.
Conclusions
Our study identified DDX1-R602-ADMA modification as a novel ADMA modification in CCA. It further confirmed its pivotal role in CCA progression. Targeting the USP10-PRMT1-DDX1 axis may represent a significant therapeutic approach for CCA.
2.Exploration on the Protective Effects and Mechanism of Xinkang Granules-Containing Serum in H9C2 Cardiomyocyte Injury Based on cGAS-STING Axis
Siqin TANG ; Liang LI ; Bing GUO ; Qihui XIE ; Qingqi YIN ; Qinliang WU ; Xi YIN ; Yilin MAO
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(11):99-105
Objective To explore the protective effect and mechanism of Xinkang Granules-containing serum in adriamycin-induced injury of cardiomyocytes H9C2 based on cGAS-STING signaling axis.Methods Adriamycin was used to induce the H9C2 cells injury model.The cells were divided into normal group,model group,Xinkang Granules group and inhibitor group.After 24 hours of intervention,the CCK-8 method was used to detect cell survival rate,the DCFH-DA fluorescent probe was used to detect the content of cell reactive oxygen species(ROS),cell apoptosis rate was detected by flow cytometry,ELISA was used to detect the content of tumor necrosis factor-α(TNF-α)in cell supernatant,colorimetry was used to detect lactate dehydrogenase(LDH)in cells,RT-qPCR was used to detect the expression of mitochondrial transcription factor A(TFAM),cyclic guanosine-adenylate synthetase(cGAS),stimulator of interferon genes(STING)and TNF-α mRNA,Western blot and immunofluorescence were used to detect the protein expressions of cGAS and STING.Results Compared with the normal group,cell survival rate in the model group was significantly reduced(P<0.01),the ROS content was significantly increased(P<0.01),the apoptosis rate significantly increased(P<0.01),the content of TNF-α in the supernatant significantly increased(P<0.01),the activity of LDH significantly increased(P<0.01),the expression of TFAM mRNA significantly decreased(P<0.01),and the expressions of TNF-α,cGAS,STING mRNA and the protein expression of cGAS and STING significantly increased(P<0.01).Compared with the model group,cell survival rate in Xinkang Granules group and inhibitor group significantly increased(P<0.01),the ROS content significantly decreased(P<0.01),the apoptosis rate significantly decreased(P<0.01),the content of TNF-α in supernatant significantly decreased(P<0.01),the activity of LDH significantly decreased(P<0.01),the expression of TFAM mRNA significantly increased(P<0.01),and the expressions of TNF-α,cGAS,STING mRNA and the protein expressions of cGAS and STING significantly decreased(P<0.05,P<0.01).Conclusion Xinkang Granules have a protective effect on adriamycin-induced H9C2 cardiomyocytes,which may be related to the inhibition of cGAS/STING axis activation and the secretion of inflammatory factors.
3.Research advances in non-pharmaceutical interventions for pain in patients with Parkinson disease
Journal of Apoplexy and Nervous Diseases 2025;42(1):77-82
Pain is one of the common non-motor symptoms in patients with Parkinson disease and is characterized by early onset, a high incidence rate, and diverse types of discomfort, which seriously affects the quality of life of patients. Based on the related concepts of pain in Parkinson disease and the current status of research in China, this article reviews the commonly used non-pharmaceutical interventions for alleviating pain in patients and their mechanisms, in order to provide a basis for developing pain management regimens.
Parkinson Disease
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Pain
4.Electroacupuncture reduces the expression of Hba-a1 and Hbb-bt and alleviates cell apoptosis after spinal cord injury by regulating the PPARγ-CD36 signaling pathway
Mingjiao LI ; Chenglin TANG ; Zhuxin YANG ; Hongdi ZHAO ; Jiapei WANG ; Kehan XING ; Siqin HUANG
Journal of Chongqing Medical University 2025;50(3):311-321
Objective:To establish a mouse model of spinal cord injury(SCI),and to investigate the effect of electroacupuncture(EA)intervention on cell apoptosis after acute SCI and its mechanism.Methods:Female C57BL/6 mice were used to establish a model of SCI,and after successful modeling,the mice were randomly divided into SCI group,EA group,and Rosiglitazone group(R group);a sham-operation group(Sham group)was also established.After successful modeling,the mice in the EA group were given EA at bilat-eral Jiaji points and Zusanli once a day for 14 days,those in the R ture,and the number of surviving cells.The EA group and the R group had a significant reduction in the expression of caspase-3 and significant increases in the expression of PPARγ and CD36,and the EA group had significant reductions in the expression of Hba-a1 and Hbb-bt.In addition,RNA-Seq and TMT/iTRAQ techniques,significant analysis,Venn analysis,and dual-omics analysis identi-fied Hba-a1 and Hbb-bt as the target genes of EA.The KEGG pathway enrichment analysis showed that EA had a significant effect on the PPAR signaling pathway.Conclusion:By regulating the PPARγ-CD36 signaling pathway,EA can promote the clearance of Hba-a1 and Hbb-bt after SCI,reduce the expression level of caspase-3,alleviate cell apoptosis,and facilitate the recovery of spinal cord nerve function.
5.Enhanced BBB penetration and microglia-targeting nanomodulator for the two-pronged modulation of chronically activated microglia-mediated neuroinflammation in Alzheimer's disease.
Ya WEI ; Xue XIA ; Xiaorong WANG ; Wenqin YANG ; Siqin HE ; Lulu WANG ; Yongke CHEN ; Yang ZHOU ; Feng CHEN ; Hanmei LI ; Fu PENG ; Guobo LI ; Zheng XU ; Jintao FU ; Huile GAO
Acta Pharmaceutica Sinica B 2025;15(2):1098-1111
Intervention in chronically activated microglia-mediated neuroinflammation is a novel approach to treat Alzheimer's disease (AD). The low permeability of the blood‒brain barrier (BBB) and non-selective distribution in the brain severely restrict AD drugs' disease-modifying efficacy. Here, an immunosuppressant TREM2-lowing antisense oligonucleotides (ASOs) and resveratrol co-loaded cationic liposome is developed as an immune reprogramming nanomodulator modified by acid-cleavable BBB-targeting peptide and microglia-targeting peptide (Res@TcMNP/ASO) for AD management. Res@TcMNP/ASO can enter brain endothelial cells via D-T7 peptides. Then D-T7 undergoes an acid-responsive cleavage, facilitating the escape of Res@MNP/ASO from endo/lysosomes to cross the BBB. The detached Res@MNP/ASO specifically targets M1-phenotype microglia via exposed MG1 peptides to prompt the simultaneous delivery of two drugs into activated microglia. This nanomodulator can not only restore the immune function of microglia through TREM2-lowing ASO but also mitigate the immune stimulation to microglia caused by reactive oxygen species (ROS) through resveratrol, thereby synergistically inhibiting the chronic activation of microglia to alleviate neuroinflammation in AD. Our results indicate that this combination treatment can achieve significant behavioral and cognitive improvements in late APP/PS1 mice.
6.Exploration on the Protective Effects and Mechanism of Xinkang Granules-Containing Serum in H9C2 Cardiomyocyte Injury Based on cGAS-STING Axis
Siqin TANG ; Liang LI ; Bing GUO ; Qihui XIE ; Qingqi YIN ; Qinliang WU ; Xi YIN ; Yilin MAO
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(11):99-105
Objective To explore the protective effect and mechanism of Xinkang Granules-containing serum in adriamycin-induced injury of cardiomyocytes H9C2 based on cGAS-STING signaling axis.Methods Adriamycin was used to induce the H9C2 cells injury model.The cells were divided into normal group,model group,Xinkang Granules group and inhibitor group.After 24 hours of intervention,the CCK-8 method was used to detect cell survival rate,the DCFH-DA fluorescent probe was used to detect the content of cell reactive oxygen species(ROS),cell apoptosis rate was detected by flow cytometry,ELISA was used to detect the content of tumor necrosis factor-α(TNF-α)in cell supernatant,colorimetry was used to detect lactate dehydrogenase(LDH)in cells,RT-qPCR was used to detect the expression of mitochondrial transcription factor A(TFAM),cyclic guanosine-adenylate synthetase(cGAS),stimulator of interferon genes(STING)and TNF-α mRNA,Western blot and immunofluorescence were used to detect the protein expressions of cGAS and STING.Results Compared with the normal group,cell survival rate in the model group was significantly reduced(P<0.01),the ROS content was significantly increased(P<0.01),the apoptosis rate significantly increased(P<0.01),the content of TNF-α in the supernatant significantly increased(P<0.01),the activity of LDH significantly increased(P<0.01),the expression of TFAM mRNA significantly decreased(P<0.01),and the expressions of TNF-α,cGAS,STING mRNA and the protein expression of cGAS and STING significantly increased(P<0.01).Compared with the model group,cell survival rate in Xinkang Granules group and inhibitor group significantly increased(P<0.01),the ROS content significantly decreased(P<0.01),the apoptosis rate significantly decreased(P<0.01),the content of TNF-α in supernatant significantly decreased(P<0.01),the activity of LDH significantly decreased(P<0.01),the expression of TFAM mRNA significantly increased(P<0.01),and the expressions of TNF-α,cGAS,STING mRNA and the protein expressions of cGAS and STING significantly decreased(P<0.05,P<0.01).Conclusion Xinkang Granules have a protective effect on adriamycin-induced H9C2 cardiomyocytes,which may be related to the inhibition of cGAS/STING axis activation and the secretion of inflammatory factors.
7.Research progress of serious games self-management education for children and adolescents with type 1 diabetes mellitus
Jia SONG ; Shiming HUANG ; Chongcai GU ; Xing LI ; Shiyan ZHAO ; Siqin LIU ; Su LI
Chinese Journal of Practical Nursing 2024;40(29):2308-2313
This paper summarized the game mechanism, application status and application effect of serious games in self-management education for children and adolescents with type 1 diabetes mellitus (T1DM), and put forward the existing shortcomings and suggestions, which can provide references for Chinese medical personnel to carry out health education and develop relevant serious games in the future.
8.Study on the Regulatory Effect of Xinkang Granules on Inflammatory Factors in Rats with Chronic Heart Failure Based on the cGAS/STING Signaling Pathway
Siqin TANG ; Bing GUO ; Liang LI ; Qingqi YIN ; Qinliang WU ; Yilin MAO
Traditional Chinese Drug Research & Clinical Pharmacology 2024;35(5):674-680
Objective To explore the intervention effect and molecular mechanism of Xinkang Granules on inflammatory factors in rats with chronic heart failure based on cGAS/STING signaling pathway.Methods SD rats were randomly divided into normal group and modeling group.The chronic heart failure model was established by intraperitoneal injection of Doxorubicin Hydrochloride.After successfully modeling,the rats were further divided into model group,Valsartan group and Xinkang Granules group.The model group was treated with distilled water every day,the Valsartan group was treated with Valsartan solution every day,and the Xinkang Granules group was treated with Xinkang Granules every day,all given for 4 consecutive weeks.Echocardiography was used to detect cardiac function,the pathological changes of myocardium were detected by hematoxylin-eosin staining(HE),the ultrastructural changes of myocardium in each group were observed by transmission electron microscope,and the contents of interleukin-1β(IL-1β)and interleukin-6(IL-6)in serum were detected by enzyme-linked immunosorbent assay(ELISA).The mRNA expression levels of mitochondrial transcription factor A(TFAM),cyclic guanosine monophosphate-adenylate synthase(cGAS),interferon-stimulated gene(STING)and IL-6 in myocardial tissue of rats in each group were detected by real-time fluorescence quantitative method(qPCR).The protein expressions of cGAS and STING in rat myocardial tissue were detected by immunohistochemical method.Results Compared with the blank group,the rats in the model group had significant inflammatory cell infiltration and inflammatory edema in myocardial tissue,their cardiac function was significantly reduced(P<0.05,P<0.01),and serum inflammatory factors were significantly increased(P<0.01).The mRNA expression of TFAM in myocardial tissue was significantly reduced(P<0.01),the mRNA expressions of IL-6,cGAS,and STING were significantly increased(P<0.01),and the protein expressions of cGAS and STING in the myocardial tissue were significantly increased(P<0.01).Compared with the model group,the cardiac function of the rats in the Xinkang Granules group was significantly improved(P<0.05,P<0.01),the inflammatory infiltration of myocardial cells was reduced,the expression of serum inflammatory factors was significantly reduced(P<0.01),the mRNA expression of TFAM in myocardial tissue was significantly increased(P<0.05),and the mRNA expressions of IL-6,cGAS,and STING were significantly decreased(P<0.01),the protein expressions of cGAS and STING in myocardial tissue were significantly decreased(P<0.01).Conclusion Xinkang Granules can reduce the expression of inflammatory factors and improve cardiac function in rats with chronic heart failure.Its mechanism may be related to inhibiting the cGAS/STING signaling pathway.
9.Correlation of Neutrophil-Lymphocyte and Albumin-Globulin Ratios With Outcomes in Patients With Breast Cancer Undergoing Neoadjuvant Chemotherapy or Upfront Surgery
Shi Hui YANG ; Min Li TEY ; Siqin ZHOU ; Phyu NITAR ; Hanis MARIYAH ; Yirong SIM ; Grace KUSUMAWIDJAJA ; Wen Yee CHAY ; Wong Fuh YONG ; Ru Xin WONG
Journal of Breast Cancer 2024;27(2):105-120
Purpose:
Higher neutrophil-lymphocyte ratio (NLRs) indicate a pro-inflammatory state and are associated with poor survival. Conversely, higher albumin-globulin ratio (AGRs) may be associated with improved prognosis. We aimed to investigate the association between NLR and AGR and prognosis and survival in patients with breast cancer.
Methods:
This retrospective study included all patients with stage I–III breast cancer between 2011 and 2017 in Singapore General Hospital and National Cancer Center Singapore.Multivariate logistic regression analysis of NLR, AGR, age, stage, grade, and subtype was performed. Survival data between groups were compared using Cox regression analysis and log-rank tests.
Results:
A total of 1,188 patients were included, of whom 323 received neoadjuvant chemotherapy (NACT) and 865 underwent upfront surgery. In patients who underwent NACT, a higher AGR was significantly associated with a higher pCR rate (cut-off > 1.28; odds ratio [OR], 2.03; 95% confidence interval [CI], 1.13–3.74; p = 0.020), better DFS (cut off > 1.55; hazard ratio [HR], 0.37; 95% CI, 0.16–0.85; p = 0.019), and better CSS (cut off > 1.46; HR, 0.39; 95% CI, 0.17–0.92; p = 0.031). Higher NLR was significantly associated with worse DFS (cut off > 4.09; HR, 1.77; 95% CI, 1.07–2.91; p = 0.026) and worse CSS (cut off > 4.09; HR, 1.98; 95% CI, 1.11–3.53; p = 0.021). In patients who underwent upfront surgery, higher AGR correlated with significantly better OS (cut off > 1.17; HR, 0.54; 95% CI, 0.36–0.82; p = 0.004) and higher NLR correlated with worse OS (cut off > 2.38; HR, 1.63; 95% CI, 1.09–2.44; p = 0.018).
Conclusion
NLR and AGR are useful in predicting the response to NACT as well as prognosis of patients with breast cancer. Further studies are needed to explore their value in clinical decision making.
10.Traditional Chinese Medicine Intervenes in Chronic Heart Failure Progression by Regulating NF-κB Signaling Pathway: A Review
Kun LIAN ; Ying DENG ; Siqin TANG ; Lin LI ; Ting WANG ; Zhixi HU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(21):243-251
Chronic heart failure (CHF) is a clinical syndrome resulting from damage to the myocardium, leading to changes in the function or structure of the heart and causing reduced pumping and/or filling capacity. Its pathogenesis is complex, potentially involving myocardial fibrosis, apoptosis and autophagy of cardiomyocytes, inflammatory responses, oxidative stress, and myocardial remodeling. Our team believes that the fundamental pathogenesis of CHF is heart-Qi deficiency, with the disease location in the heart, which is closely related to other organs. Due to heart-Qi deficiency, blood circulation weakens, leading to blood stasis, which in turn generates water-dampness and phlegm turbidity that accumulate over time and become toxic. The interaction between water stasis, Qi stagnation, blood stasis, and phlegm toxicity further weakens the body, creating a vicious cycle (deficiency, stasis, water retention, and toxicity) that is difficult to resolve. Under physiological conditions, the nuclear factor-κB (NF-κB) signaling pathway functions normally, maintaining vital activities and immune responses. However, in pathological states, the NF-κB signaling pathway becomes imbalanced, triggering inflammatory responses and other issues. Research has shown that traditional Chinese medicine (TCM) can regulate the NF-κB signaling pathway through multiple pathways, targets, and effects, effectively improving the progression of CHF. As a result, this has become a research hotspot for the prevention and treatment of the disease. Guided by TCM theory, this research group reviewed the literature to summarize the activation pathways of the NF-κB pathway and its interactions with other pathways. Additionally, the group summarized the research progress on the regulation of the NF-κB pathway in the treatment of CHF using Chinese medicines, their active ingredients, Chinese medicine compounds, and Chinese patent medicines. This study is expected to clarify the mechanisms and targets by which TCM treats CHF by regulating the NF-κB pathway, thereby guiding clinical treatment and drug development for CHF.

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