1.PANoptosis: a New Target for Cardiovascular Diseases
Xin-Nong CHEN ; Ying-Xi YANG ; Xiao-Chen GUO ; Jun-Ping ZHANG ; Na-Wen LIU
Progress in Biochemistry and Biophysics 2025;52(5):1113-1125
The innate immune system detects cellular stressors and microbial infections, activating programmed cell death (PCD) pathways to eliminate intracellular pathogens and maintain homeostasis. Among these pathways, pyroptosis, apoptosis, and necroptosis represent the most characteristic forms of PCD. Although initially regarded as mechanistically distinct, emerging research has revealed significant crosstalk among their signaling cascades. Consequently, the concept of PANoptosis has been proposed—an inflammatory cell death pathway driven by caspases and receptor-interacting protein kinases (RIPKs), and regulated by the PANoptosome, which integrates key features of pyroptosis, apoptosis, and necroptosis. The core mechanism of PANoptosis involves the assembly and activation of the PANoptosome, a macromolecular complex composed of three structural components: sensor proteins, adaptor proteins, and effector proteins. Sensors detect upstream stimuli and transmit signals downstream, recruiting critical molecules via adaptors to form a molecular scaffold. This scaffold activates effectors, triggering intracellular signaling cascades that culminate in PANoptosis. The PANoptosome is regulated by upstream molecules such as interferon regulatory factor 1 (IRF1), transforming growth factor beta-activated kinase 1 (TAK1), and adenosine deaminase acting on RNA 1 (ADAR1), which function as molecular switches to control PANoptosis. Targeting these switches represents a promising therapeutic strategy. Furthermore, PANoptosis is influenced by organelle functions, including those of the mitochondria, endoplasmic reticulum, and lysosomes, highlighting organelle-targeted interventions as effective regulatory approaches. Cardiovascular diseases (CVDs), the leading global cause of morbidity and mortality, are profoundly impacted by PCD. Extensive crosstalk among multiple cell death pathways in CVDs suggests a complex regulatory network. As a novel cell death modality bridging pyroptosis, apoptosis, and necroptosis, PANoptosis offers fresh insights into the complexity of cell death and provides innovative strategies for CVD treatment. This review summarizes current evidence linking PANoptosis to various CVDs, including myocardial ischemia/reperfusion injury, myocardial infarction, heart failure, arrhythmogenic cardiomyopathy, sepsis-induced cardiomyopathy, cardiotoxic injury, atherosclerosis, abdominal aortic aneurysm, thoracic aortic aneurysm and dissection, and vascular toxic injury, thereby providing critical clinical insights into CVD pathophysiology. However, the current understanding of PANoptosis in CVDs remains incomplete. First, while PANoptosis in cardiomyocytes and vascular smooth muscle cells has been implicated in CVD pathogenesis, its role in other cell types—such as vascular endothelial cells and immune cells (e.g., macrophages)—warrants further investigation. Second, although pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs) are known to activate the PANoptosome in infectious diseases, the stimuli driving PANoptosis in CVDs remain poorly defined. Additionally, methodological challenges persist in identifying PANoptosome assembly in CVDs and in establishing reliable PANoptosis models. Beyond the diseases discussed, PANoptosis may also play a role in viral myocarditis and diabetic cardiomyopathy, necessitating further exploration. In conclusion, elucidating the role of PANoptosis in CVDs opens new avenues for drug development. Targeting this pathway could yield transformative therapies, addressing unmet clinical needs in cardiovascular medicine.
2.Mechanism of Huangqi Guizhi Wuwutang in Treatment of Sarcopenia Associated with Rheumatoid Arthritis by Improving Skeletal Muscle Homeostasis Through Regulation of Autophagy
Yakun WAN ; Yuan LIU ; Yuan QU ; Jingyu GUO ; Ting LIU ; Zhihui BAI ; Di ZHANG ; Ping JIANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(16):12-23
ObjectiveThis study aims to explore the mechanism of action of Huangqi Guizhi Wuwutang in treating rheumatoid arthritis (RA)-associated sarcopenia by regulating autophagy and improving skeletal muscle homeostasis based on network pharmacology,bioinformatics,machine learning,and animal experiments. MethodsActive ingredients and targets of Huangqi Guizhi Wuwutang were screened using the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP),PubChem,and SwissTargetPrediction databases. RA-related datasets were retrieved from the GEO database,and differential genes were screened. Sarcopenia-related targets were searched through GeneCards and the Comparative Toxicology Database (CTD),and autophagy-related gene sets were downloaded from the Human Autophagy Database (HADb). Their intersection was analyzed to identify autophagy-related therapeutic targets,followed by enrichment analysis. A protein-protein interaction (PPI) network was constructed using the STRING database,and key targets were selected using multiple methods. Machine learning was applied to predict models based on the expression profiles of intersecting targets,and nomogram models were constructed based on key targets. Molecular docking of the top four active ingredients with key targets was performed using AutoDockVina. A collagen-induced arthritis (CIA) rat model was established using bovine type Ⅱ collagen,with SD rats divided into groups including a blank group,a model group,and low-,medium-,and high-dose groups of Huangqi Guizhi Wuwutang (2.44,4.88,and 9.76 g·kg-1) and administered for five consecutive weeks. Joint scores and gastrocnemius muscle mass were recorded and analyzed after modeling. Hematoxylin and eosin (HE) staining and Masson's staining were used to observe pathological changes in muscle tissue. Immunofluorescence staining was applied to observe the protein expression levels of myosin heavy chain (MYHC) and insulin-like growth factor-1 (IGF-1) in skeletal muscle. Western blot was used to detect the protein expression levels of autophagy-related proteins ATG5,Beclin1,LC3B,muscle-specific proteins (MuRF1),MaFbx,and MYHC. Real-time quantitative reverse transcription PCR (Real-time PCR) was performed to measure the mRNA expression levels of ATG5,Beclin1,LC3B,MuRF1,MaFbx,and MYHC in muscle tissue. ResultsNetwork pharmacology revealed that Huangqi Guizhi Wuwutang shared 25 common targets with autophagy genes related to RA-associated sarcopenia. The PPI network and machine learning identified six key targets,which were primarily involved in autophagy and inflammatory pathways. Animal experiments showed that compared to the blank group,the model group had significantly higher joint scores (P<0.01) and lower gastrocnemius muscle index (P<0.01). HE staining indicated a significant reduction in the cross-sectional area of gastrocnemius muscle fibers,with notable inflammatory cell infiltration and muscle atrophy in the model group. Masson's staining revealed obvious collagen fiber proliferation and deposition,with significant muscle fibrosis in the model group. The protein and mRNA expression levels of ATG5,Beclin1,LC3B,MuRF1,and MaFbx were significantly increased (P<0.01),while the protein expression of MYHC and IGF1 was significantly downregulated (P<0.01). Compared with the model group,the high-dose group of Huangqi Guizhi Wuwutang showed significantly reduced protein and mRNA expression levels of ATG5,Beclin1,LC3B,MuRF1,and MaFbx (P<0.01) and increased protein expression levels of MYHC and IGF1 (P<0.01). The cross-sectional area of muscle fibers increased,and the muscle cell morphology approached normal. Moreover,pathological abnormalities in the gastrocnemius muscle were significantly improved,with reduced collagen fiber proliferation (P<0.01). ConclusionHuangqi Guizhi Wuwutang can mediate autophagy by regulating the expression of ATG5,Beclin1,LC3B,and IGF1,thereby reducing skeletal muscle catabolism and improving skeletal muscle homeostasis,which contributes to the treatment of RA-associated sarcopenia. The findings provide insight into the mechanisms underlying the effects of Huangqi Guizhi Wuwutang in the treatment of RA-related sarcopenia and offer a reference for its enhanced clinical application.
3.Network Pharmacology and Experimental Verification Unraveled The Mechanism of Pachymic Acid in The Treatment of Neuroblastoma
Hang LIU ; Yu-Xin ZHU ; Si-Lin GUO ; Xin-Yun PAN ; Yuan-Jie XIE ; Si-Cong LIAO ; Xin-Wen DAI ; Ping SHEN ; Yu-Bo XIAO
Progress in Biochemistry and Biophysics 2025;52(9):2376-2392
ObjectiveTraditional Chinese medicine (TCM) constitutes a valuable cultural heritage and an important source of antitumor compounds. Poria (Poria cocos (Schw.) Wolf), the dried sclerotium of a polyporaceae fungus, was first documented in Shennong’s Classic of Materia Medica and has been used therapeutically and dietarily in China for millennia. Traditionally recognized for its diuretic, spleen-tonifying, and sedative properties, modern pharmacological studies confirm that Poria exhibits antioxidant, anti-inflammatory, antibacterial, and antitumor activities. Pachymic acid (PA; a triterpenoid with the chemical structure 3β-acetyloxy-16α-hydroxy-lanosta-8,24(31)-dien-21-oic acid), isolated from Poria, is a principal bioactive constituent. Emerging evidence indicates PA exerts antitumor effects through multiple mechanisms, though these remain incompletely characterized. Neuroblastoma (NB), a highly malignant pediatric extracranial solid tumor accounting for 15% of childhood cancer deaths, urgently requires safer therapeutics due to the limitations of current treatments. Although PA shows multi-mechanistic antitumor potential, its efficacy against NB remains uncharacterized. This study systematically investigated the potential molecular targets and mechanisms underlying the anti-NB effects of PA by integrating network pharmacology-based target prediction with experimental validation of multi-target interactions through molecular docking, dynamic simulations, and in vitro assays, aimed to establish a novel perspective on PA’s antitumor activity and explore its potential clinical implications for NB treatment by integrating computational predictions with biological assays. MethodsThis study employed network pharmacology to identify potential targets of PA in NB, followed by validation using molecular docking, molecular dynamics (MD) simulations, MM/PBSA free energy analysis, RT-qPCR and Western blot experiments. Network pharmacology analysis included target screening via TCMSP, GeneCards, DisGeNET, SwissTargetPrediction, SuperPred, and PharmMapper. Subsequently, potential targets were predicted by intersecting the results from these databases via Venn analysis. Following target prediction, topological analysis was performed to identify key targets using Cytoscape software. Molecular docking was conducted using AutoDock Vina, with the binding pocket defined based on crystal structures. MD simulations were performed for 100 ns using GROMACS, and RMSD, RMSF, SASA, and hydrogen bonding dynamics were analyzed. MM/PBSA calculations were carried out to estimate the binding free energy of each protein-ligand complex. In vitro validation included RT-qPCR and Western blot, with GAPDH used as an internal control. ResultsThe CCK-8 assay demonstrated a concentration-dependent inhibitory effect of PA on NB cell viability. GO analysis suggested that the anti-NB activity of PA might involve cellular response to chemical stress, vesicle lumen, and protein tyrosine kinase activity. KEGG pathway enrichment analysis suggested that the anti-NB activity of PA might involve the PI3K/AKT, MAPK, and Ras signaling pathways. Molecular docking and MD simulations revealed stable binding interactions between PA and the core target proteins AKT1, EGFR, SRC, and HSP90AA1. RT-qPCR and Western blot analyses further confirmed that PA treatment significantly decreased the mRNA and protein expression of AKT1, EGFR, and SRC while increasing the HSP90AA1 mRNA and protein levels. ConclusionIt was suggested that PA may exert its anti-NB effects by inhibiting AKT1, EGFR, and SRC expression, potentially modulating the PI3K/AKT signaling pathway. These findings provide crucial evidence supporting PA’s development as a therapeutic candidate for NB.
4.Application of a digital chylous plasma assessment device in the determination of chylous plasma
Lingyue GUO ; Caina LI ; Hongyan GAO ; Wei WEI ; Ping ZHANG ; Yan LIU ; Yajie WANG ; Weidong HE
Chinese Journal of Blood Transfusion 2025;38(9):1236-1241
Objective: To develop a simple digital chylous plasma device and validate its ability to accurately, standardly, and non-destructively determine chylous plasma in blood banks and clinical transfusions in hospitals. Methods: A digital chylous plasma assessment device was designed and manufactured. This device was used to measure the chylous degrees of chylous plasma samples before freezing, after freeze-thawing, before viral inactivation, and after viral inactivation. The measured chylosity index values were categorized according to the requirements specified in Appendix A of the Chinese national standard GB 18469-2001 "Quality Requirements for Whole Blood and Blood Components". This process established a digital standard for chylous plasma, enabling the identification of severe, moderate and mild chylous plasma, and non-chylous plasma. Results: The initial simple product of the digital chylous assessment device was successfully designed and manufactured. There was no significant difference in the degree of chylous plasma between pre-freezing 468.11±217.73 lux and post-thawing 538.91±273.39 lux of chylous plasma (P>0.05), or between pre-viral inactivation 858.33±387.79 lux and post-viral inactivation 928.33±166.51 lux of chylous plasma (P>0.05). The median of chylous degree values for plasma chylous index grades 0 to 6 were 45 lux, 250 lux, 620 lux, 835 lux, 1 130 lux, 1 390 lux, and 1 700 lux, respectively. The defined cutoff values/ranges for the chylous degree values corresponding to plasma chylous index grade 0 to 6 were ≤125 lux, 126-465 lux, 466-740 lux, 741-1 000 lux, 1 001-1 233 lux, 1 234-1 560 lux, and ≥1 561 lux. Conclusion: This study successfully developed the initial product of the digital chylous device and established digital standards for classifying chylous plasma. The device demonstrates the potential to meet the needs for assessment of chylous plasma in both blood banks and clinical transfusions in hospitals, thereby promoting the development and application of standardized, non-destructive chylous plasma assessment technology.
5.Qinghao Biejiatang Treats Lung Diseases: A Review
Yan LI ; Xiao LI ; Yanjun LIU ; Ping GUO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(3):258-269
Qinghao Biejiatang, first recorded in the Detailed Analysis of Warm Diseases (《温病条辨》) written by WU Jutong in the Qing Dynasty, is composed of Artemisiae Annuae Herba, Trionycis Carapax, Rehmanniae Radix, Anemarrhenae Rhizoma, and Moutan Cortex. With the effects of nourishing Yin and relieving heat, this prescription is often used to treat the syndrome of Yin deficiency and internal heat. The deficiency of healthy Qi, invasion of pathogenic toxins, loss of lung Yin, and generation of deficiency-heat are pathogenesis of lung cancer, pneumonia and other lung diseases, the treatment of which usually follows the principles of nourishing Yin, reinforcing healthy Qi, clearing lung, and eliminating heat. With the effects basically in accordance with the treatment principles of lung diseases, Qinghao Biejiatang is widely used in the treatment of lung diseases such as lung cancer-associated fever, hemoptysis or combined with bone metastasis, tuberculosis, community-acquired pneumonia, and pneumonia caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2). Basic experiments have shown that Qinghao Biejiatang may exert the therapeutic effects by reducing inflammation, maintaining immune balance, regulating intestinal flora, hormone secretion, lipid metabolism, and inhibiting tumor and oxidative damage. In addition, the main active ingredients of this prescription include artemisinin, luteolin, sitosterol, stigmasterol, polysaccharides, catalpol, paeoniflorin, quercetin, paeonol, gallic acid, timosaponin, and mangiferin, which have anti-tumor, anti-oxidant, anti-virus, inflammation-regulating, and immunomodulatory activities. The paper reviewed the clinical and basic studies of Qinghao Biejiatang in the treatment of lung diseases, aming to provide a theoretical basis for the clinical application.
6.Comparative study on pharmacokinetics and pharmacodynamics of levodopa/carbidopa versus levodopa/benserazide
Guang-Xin WEN ; Lei YAN ; Wei-Guo LIU ; Hong XIAO ; Tai-Ping LI ; Ming LU
The Chinese Journal of Clinical Pharmacology 2024;40(2):254-258
Objective To study the pharmacokinetic and pharmacodynamic characteristics of compound levodopa/carbidopa(250 mg/25 mg)and levodopa/benserazide(200 mg/50 mg)in patients with Parkinson's disease(PD).Methods This experiment used a levodopa challenge test with a randomized crossover design.In the first week,20 PD patients orally received either 275 mg of compound levodopa/carbidopa or 250 mg of levodopa/benserazide on an empty stomach,and in the second week,they received the other treatment.The levodopa blood concentration was measured using high-performance liquid chromatography-tandem mass spectrometry,and motor symptoms were evaluated using the Movement Disorder Society-Unified Parkinson's Disease Rating Scale Ⅲ.Results Data from 17 patients in the compound levodopa/carbidopa group and 18 patients in the levodopa/benserazide group was included in the analysis.After administration,the Cmax values of compound levodopa/carbidopa and levodopa/benserazide groups were(3 563.76±1 003.06)and(3 642.44±1 192.70)ng·mL-1;the tmax values were(1.10±0.44)and(1.03±0.55)h;the t1/2 values were(1.52±0.15)and(1.68±0.27)h;the AUC0-t values were(7 625.19±1 706.85)and(5 846.07±1 191.16)ng·mL-1·h;the mean residence time(MRT)values were(2.39±0.361)and(2.14±0.37)h,respectively.There were no statistically significant differences in the Cmax,tmax,and t1/2 values between the two groups(all P>0.05).Compared with the levodopa/benserazide group,the compound levodopa/carbidopa group increased levodopa AUC and prolonged MRT(all P<0.05).The improvement in motor symptoms and levodopa blood concentration showed consistent trends at various time points in both groups.The compound levodopa/carbidopa group showed significantly better improvement in motor function at 6 and 8 hours after medication compared to the levodopa/benserazide group[(-10.82±8.91)points vs(-5.17±6.78)points,(-7.88±10.05)points vs(-2.11±4.84)points;both P<0.05].Conclusion The pharmacokinetic and pharmacodynamic characteristics of compound levodopa/carbidopa are similar to those of levodopa/benserazide.
7.Clinical trial of brexpiprazole in the treatment of adults with acute schizophrenia
Shu-Zhe ZHOU ; Liang LI ; Dong YANG ; Jin-Guo ZHAI ; Tao JIANG ; Yu-Zhong SHI ; Bin WU ; Xiang-Ping WU ; Ke-Qing LI ; Tie-Bang LIU ; Jie LI ; Shi-You TANG ; Li-Li WANG ; Xue-Yi WANG ; Yun-Long TAN ; Qi LIU ; Uki MOTOMICHI ; Ming-Ji XIAN ; Hong-Yan ZHANG
The Chinese Journal of Clinical Pharmacology 2024;40(5):654-658
Objective To evaluate the efficacy and safety of brexpiprazole in treating acute schizophrenia.Methods Patients with schizophrenia were randomly divided into treatment group and control group.The treatment group was given brexpiprozole 2-4 mg·d-1 orally and the control group was given aripiprazole 10-20 mg·d-1orally,both were treated for 6 weeks.Clinical efficacy of the two groups,the response rate at endpoint,the changes from baseline to endpoint of Positive and Negative Syndrome Scale(PANSS),Clinical Global Impression-Improvement(CGI-S),Personal and Social Performance scale(PSP),PANSS Positive syndrome subscale,PANSS negative syndrome subscale were compared.The incidence of treatment-related adverse events in two groups were compared.Results There were 184 patients in treatment group and 186 patients in control group.After treatment,the response rates of treatment group and control group were 79.50%(140 cases/184 cases)and 82.40%(150 cases/186 cases),the scores of CGI-I of treatment group and control group were(2.00±1.20)and(1.90±1.01),with no significant difference(all P>0.05).From baseline to Week 6,the mean change of PANSS total score wese(-30.70±16.96)points in treatment group and(-32.20±17.00)points in control group,with no significant difference(P>0.05).The changes of CGI-S scores in treatment group and control group were(-2.00±1.27)and(-1.90±1.22)points,PSP scores were(18.80±14.77)and(19.20±14.55)points,PANSS positive syndrome scores were(-10.30±5.93)and(-10.80±5.81)points,PANSS negative syndrome scores were(-6.80±5.98)and(-7.30±5.15)points,with no significant difference(P>0.05).There was no significant difference in the incidence of treatment-related adverse events between the two group(69.00%vs.64.50%,P>0.05).Conclusion The non-inferiority of Brexpiprazole to aripiprazole was established,with comparable efficacy and acceptability.
8.Extracellular Acidification Impairs Macrophage Lipophagy Through ASIC1/RIP1 Pathway
Juan LIU ; Xiang OU ; Qing LIU ; Miao GUO ; Zi-Ping NING ; Hong-Feng GU ; Ya-Ling TANG
Progress in Biochemistry and Biophysics 2024;51(1):202-214
ObjectiveOur recent study has demonstrated that extracellular acidification promotes lipid accumulation in macrophages via the activation of acid sensing ion channel 1 (ASIC1), but the underlying mechanism remains unclear. This study aims to explore the effect of extracellular acidification on macrophage lipophagy and the underlying mechanism. MethodsRAW264.7 macrophages were incubated with 25 mg/Lox-LDL in a pH 6.5 culture medium for 24 h to build macrophage-derived foam cell models induced by extracellular acidification. Then, RAW264.7 macrophages were cultured in the acidic medium of pH 6.5 with or without PcTx-1 (ASIC1 specific blocker, 10 μg/L) or Nec-1 (RIP1 specific inhibitor, 20 μmol/L) for 24 h, intracellular lipid accumulation was observed by oil red O staining. The expressions of total ASIC1, plasma membrane ASIC1, RIP1, p-RIP1 Ser166, TFEB, p-TFEB Ser142, LC3 and p62 were measured by Western blot. The co-localization of lipids (indicated by Bodipy) with LC3II (autophagosomes) and LAMP1 (lysosomes) was analyzed by a confocal laser scanning microscopy, respectively. Morphological changes of lipophagy in the cells were observed by using transmission electron microscopy. ABCA1-mediated cholesterol efflux was determined by cholesterol fluorescence kits. ResultsCompared with pH 7.4+ox-LDL group, the intracellular lipid accumulation in the pH 6.5+ox-LDL group was significantly increased. Meanwhile, the expressions of plasma membrane ASIC1, p-RIP1 Ser166, p-TFEB Ser142, and p62 proteins were elevated significantly, while LC3II protein level and LC3II/LC3I ratio were decreased. Accordingly, compared with pH 7.4+ox-LDL group, the macrophage lipophagy of the pH 6.5+ox-LDL group was inhibited as indicated by the decreased localization of lipid droplets with LC3 and LAMP1, a decrease in the number of lipophagosomes as well as an increase in lipid droplets. Furthermore, ATP binding cassette transporter A1 (ABCA1)-dependent cholesterol efflux from the macrophages of pH 6.5+ox-LDL group reduced dramatically. However, these above effects of extracellular acidification on RAW264.7 macrophages were abolished by PcTx-1 and Nec-1, respectively. ConclusionThese findings suggest extracellular acidification promotes the phosphorylation of TFEB at Ser142 via activating ASIC1/RIP1 pathway, thereby impeding lipophagy in RAW 264.7 macrophages, and that ASIC1 may be a new potential target for preventing aberrant lipid accumulation diseases including atherosclerosis.
9.Isolation, chiral separation and absolute configuration determination of lignanoids from an aqueous extract of the Angelica sinensis root head
Xiao-yi ZHANG ; Zhao XIA ; Xiao-qiang LEI ; Wei-ping LI ; Rong LIU ; Qing-lan GUO ; Jian-gong SHI
Acta Pharmaceutica Sinica 2024;59(7):2077-2086
From an aqueous extract of the
10.Next-Generation Patient-Based Real-Time Quality Control Models
Xincen DUAN ; Minglong ZHANG ; Yan LIU ; Wenbo ZHENG ; Chun Yee LIM ; Sollip KIM ; Tze Ping LOH ; Wei GUO ; Rui ZHOU ; Tony BADRICK ;
Annals of Laboratory Medicine 2024;44(5):385-391
Patient-based real-time QC (PBRTQC) uses patient-derived data to assess assay performance. PBRTQC algorithms have advanced in parallel with developments in computer science and the increased availability of more powerful computers. The uptake of Artificial Intelligence in PBRTQC has been rapid, with many stated advantages over conventional approaches. However, until this review, there has been no critical comparison of these. The PBRTQC algorithms based on moving averages, regression-adjusted real-time QC, neural networks and anomaly detection are described and contrasted. As Artificial Intelligence tools become more available to laboratories, user-friendly and computationally efficient, the major disadvantages, such as complexity and the need for high computing resources, are reduced and become attractive to implement in PBRTQC applications.

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