1.Mechanism of Guihuang Formula in Regulating NLRP3 Inflammasome-mediated Pyroptosis in Treatment of Chronic Prostatitis
Qinghe GAO ; Jianhua FU ; Shengjing LIU ; Ziwei ZHAO ; Ming ZHAO ; Boda GUO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):108-116
ObjectiveTo observe the mechanism of Guihuang formula in regulating the activation of NOD-like receptor protein 3 (NLRP3) inflammasome and inhibiting pyroptosis in the treatment of type Ⅲ prostatitis. Methods(1) In an animal experiment, 50 Sprague Dawley (SD) rats were randomly divided into a blank group, a model group, and low-dose, medium-dose, and high-dose groups of Guihuang formula, with 10 rats in each group. Except for the blank group, the type Ⅲ prostatitis rat model was prepared for the other four groups.After the modeling was successful, the blank group and the model group were given normal saline intragastrically, and the low-dose, medium-dose, and high-dose groups of Guihuang formula were given intragastrically with Guihuang formula (4.9, 9.8, 19.6 g·kg-1). After 30 days of intragastrical administration, samples were taken for detection. Inflammatory cell infiltration in prostate tissue was observed by hematoxylin-eosin (HE) staining, and serum IL-1β and IL-18 levels were measured by enzyme-linked immunosorbent assay (ELISA). Serum malondialdehyde (MDA), superoxide dismutase (SOD), and glutathione peroxidase (GSH-Px) levels were determined by biochemistry. NLRP3 expression in prostate tissue was assessed by immunohistochemistry, and the expression of NLRP3, cysteine-aspartic acid protease-1 (Caspase-1), and gasdermin D (GSDMD) in prostate tissue was measured by Western blot. (2) In a cell experiment, human normal prostate epithelial cells (RWPE-1 cells) were divided into a blank group, a model group, a Guihuang formula group, and an NLRP3 inhibitor group (MCC950 group). Except for the blank group, the other three groups were stimulated by 100 μg·L-1 lipopolysaccharide (LPS) for 4 h and 5 mol·L-1 adenosine triphosphate (ATP) for 30 min to prepare the pyroptosis model. After successful modeling, blank serum was given to the blank group and the model group. 6.25 μg·mL-1 Guihuang formula drug-containing serum was added to the Guihuang formula group, and MCC950 was added to the MCC950 group on the basis of the model group. Propidium iodide (PI) uptake and Caspase-1 expression were detected by flow cytometry, and lactate dehydrogenase (LDH) level in the cell supernatant was measured by biochemistry. Interleukin (IL)-1β and IL-18 levels of the cell supernatant were determined by ELISA, and the expression of NLRP3, Caspase-1, and GSDMD was detected in Western blot. Results(1) For the animal experiment, compared with the blank group, the model group showed significant infiltration of inflammatory cells in prostate tissue, while the low-dose, medium-dose, and high-dose groups of Guihuang formula showed reduced infiltration of acinar inflammatory cells, reduced degree of glandular epithelial degeneration and interstitial edema, and significantly reduced degree of damage. Compared with those in the blank group, the levels of IL-1β and IL-18 in the serum of the model group were significantly increased (P<0.01). Compared with the model group, the low-dose, medium-dose, and high-dose groups of Guihuang formula showed a significant decrease in serum IL-1β and IL-18 levels (P<0.01). Compared with that in the blank group, the serum MDA level in the model group significantly increased (P<0.01). Compared with that in the model group, the MDA level in the low-dose, medium-dose, and high-dose groups of Guihuang formula was significantly reduced (P<0.01). Compared with those in the blank group, the levels of SOD and GSH-Px in the serum of the model group significantly decreased (P<0.05). Compared with the model group, the low-dose, medium-dose, and high-dose groups of Guihuang formula showed a significantly increase in SOD (P<0.01). Compared with the model group, the low-dose, medium-dose, and high-dose groups of Guihuang formula showed a significantly increase in GSH-Px (P<0.05). Immunohistochemistry showed that compared with the blank group, the model group had high expression of NLRP3 molecule in prostate tissue. The expression of NLRP3 in the low-dose, medium-dose, and high-dose groups of Guihuang formula was significantly lower than that in the model group. Compared with those in the blank group, the expression levels of NLRP3, Caspase-1, and GSDMD proteins in the prostate tissue of the model group were significantly increased (P<0.01). Compared with those in the model group, the expression levels of NLRP3, Caspase-1, and GSDMD proteins in the low-dose, medium-dose, and high-dose groups of Guihuang formula were significantly inhibited (P<0.01). (2) For the cell experiment, compared with that in the blank group, the PI uptake rate of RWPE-1 cells in the model group significantly increased (P<0.01). Compared with that in the model group, the PI uptake rate of the Guihuang formula group and the inhibitor group significantly decreased (P<0.01). Compared with that in the blank group, the expression of Caspase-1 in the model group was significantly higher (P<0.01). Compared with that in the model group, the Caspase-1 in the Guihuang formula group and the inhibitor group significantly decreased (P<0.01). Compared with the blank group, the model group showed an increase in LDH release (P<0.01). Compared with the model group, the Guihuang formula group and the inhibitor group showed a significantly decrease in LDH release (P<0.01). Compared with those in the blank group, the levels of IL-1β and IL-18 in the supernatant of the model group were significantly increased (P<0.01). Compared with the model group, the Guihuang formula group and the inhibitor group showed a significantly decrease in the levels of IL-1β and IL-18 (P<0.01). Compared with those in the blank group, the expression levels of NLRP3, Caspase-1, and GSDMD proteins significantly increased in the model group (P<0.01). Compared with those in the model group, the protein expression levels of NLRP3, Caspase-1, and GSDMD were significantly reduced in the Guihuang formula group and inhibitor group (P<0.01). ConclusionGuihuang formula can inhibit the activation of Caspase-1, prevent GSDMD cleavation and lysis, and inhibit cell pyrodeath in the treatment of type Ⅲ prostatitis by inhibiting the activation of NLRP3 inflammasome.
2.Identification and Biological Characterization of Pathogen and Screening of Effective Fungicides for Wilt of Tetradium ruticarpum
Yuxin LIU ; Qin XU ; Yue YUAN ; Tiantian GUO ; Zheng'en XIAO ; Shaotian ZHANG ; Ming LIU ; Fuqiang YIN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):198-206
ObjectiveTo identify the pathogen species responsible for the wilt disease of Tetradium ruticarpum in Chongqing, investigate there biological characteristics, and screen effective fungicides, so as to provide a theoretical basis for disease control in production. MethodsThe pathogen was isolated via the tissue culture method. Pathogenicity was verified according to Koch's postulates. The pathogen was identified based on morphological characteristics and multi-gene phylogenetic analysis. The mycelial growth rate method was used for biological characterization of the pathogen and fungicide screening. ResultsThe pathogen colonies were nearly circular with irregular edges, white, short, velvety aerial hyphae, and pale purple undersides. Macroconidia were colorless, sickle-shaped, with 3-5 septa, while microconidia were transparent, elliptical, aseptate or with 1-2 septa. Multi-gene phylogenetic analysis showed that the pathogen clustered in the same clade as Fusarium fujikuroi with 100% support, which, combined with morphological characteristics, identified the pathogen causing wilt of T. ruticarpum in Chongqing as F. fujikuroi. The optimal conditions for the mycelial growth of F. fujikuroi were mung bean agar (MBA) with glucose as the carbon source, beef extract and yeast powder as nitrogen sources, 28 ℃, pH 7.0, and alternating light/dark conditions. The optimal conditions for sporulation were potato dextrose agar (PDA) with glucose as the carbon source, beef extract as the nitrogen source, 28 ℃, pH 7.0, and complete darkness. Among chemical fungicides, phenazine-1-carboxylic acid exhibited the strongest inhibitory effect on F. fujikuroi. Shenqinmycin and tetramycin were the most effective bio-fungicides. ConclusionThis study is the first to report F. fujikuroi as the causal agent of wilt disease in T. rutaecarpa. The chemical fungicide phenazine-1-carboxylic acid and the bio-fungicides shenqinmycin and tetramycin showed strong inhibitory effects against F. fujikuroi.
3.Expert consensus on neoadjuvant PD-1 inhibitors for locally advanced oral squamous cell carcinoma (2026)
LI Jinsong ; LIAO Guiqing ; LI Longjiang ; ZHANG Chenping ; SHANG Chenping ; ZHANG Jie ; ZHONG Laiping ; LIU Bing ; CHEN Gang ; WEI Jianhua ; JI Tong ; LI Chunjie ; LIN Lisong ; REN Guoxin ; LI Yi ; SHANG Wei ; HAN Bing ; JIANG Canhua ; ZHANG Sheng ; SONG Ming ; LIU Xuekui ; WANG Anxun ; LIU Shuguang ; CHEN Zhanhong ; WANG Youyuan ; LIN Zhaoyu ; LI Haigang ; DUAN Xiaohui ; YE Ling ; ZHENG Jun ; WANG Jun ; LV Xiaozhi ; ZHU Lijun ; CAO Haotian
Journal of Prevention and Treatment for Stomatological Diseases 2026;34(2):105-118
Oral squamous cell carcinoma (OSCC) is a common head and neck malignancy. Approximately 50% to 60% of patients with OSCC are diagnosed at a locally advanced stage (clinical staging III-IVa). Even with comprehensive and sequential treatment primarily based on surgery, the 5-year overall survival rate remains below 50%, and patients often suffer from postoperative functional impairments such as difficulties with speaking and swallowing. Programmed death receptor-1 (PD-1) inhibitors are increasingly used in the neoadjuvant treatment of locally advanced OSCC and have shown encouraging efficacy. However, clinical practice still faces key challenges, including the definition of indications, optimization of combination regimens, and standards for efficacy evaluation. Based on the latest research advances worldwide and the clinical experience of the expert group, this expert consensus systematically evaluates the application of PD-1 inhibitors in the neoadjuvant treatment of locally advanced OSCC, covering combination strategies, treatment cycles and surgical timing, efficacy assessment, use of biomarkers, management of special populations and immune related adverse events, principles for immunotherapy rechallenge, and function preservation strategies. After multiple rounds of panel discussion and through anonymous voting using the Delphi method, the following consensus statements have been formulated: 1) Neoadjuvant therapy with PD-1 inhibitors can be used preoperatively in patients with locally advanced OSCC. The preferred regimen is a PD-1 inhibitor combined with platinum based chemotherapy, administered for 2-3 cycles. 2) During the efficacy evaluation of neoadjuvant therapy, radiographic assessment should follow the dual criteria of Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 and immune RECIST (iRECIST). After surgery, systematic pathological evaluation of both the primary lesion and regional lymph nodes is required. For combination chemotherapy regimens, PD-L1 expression and combined positive score need not be used as mandatory inclusion or exclusion criteria. 3) For special populations such as the elderly (≥ 70 years), individuals with stable HIV viral load, and carriers of chronic HBV/HCV, PD-1 inhibitors may be used cautiously under the guidance of a multidisciplinary team (MDT), with close monitoring for adverse events. 4) For patients with a poor response to neoadjuvant therapy, continuation of the original treatment regimen is not recommended; the subsequent treatment plan should be adjusted promptly after MDT assessment. Organ transplant recipients and patients with active autoimmune diseases are not recommended to receive neoadjuvant PD-1 inhibitor therapy due to the high risk of immune related activation. Rechallenge is generally not advised for patients who have experienced high risk immune related adverse events such as immune mediated myocarditis, neurotoxicity, or pneumonitis. 5) For patients with a good pathological response, individualized de escalation surgery and function preservation strategies can be explored. This consensus aims to promote the standardized, safe, and precise application of neoadjuvant PD-1 inhibitor strategies in the management of locally advanced OSCC patients.
4.Mechanisms of Bushen Tongluo Jiangzhuo Prescription in Improving Renal Fibrosis in Rats with Chronic Kidney Disease Based on PI3K/Akt/mTOR Signaling Pathway
Xincui BAO ; Baosheng ZHAO ; Lingling QIN ; Haiyan WANG ; Jing YANG ; You WANG ; Lijia WU ; Yujin LI ; Ming GAO ; Cuiyan LYU ; Tonghua LIU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(6):100-108
ObjectiveTo investigate the mechanisms by which Bushen Tongluo Jiangzhuo prescription improves renal fibrosis in rats with chronic kidney disease (CKD) through the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR) signaling pathway. MethodsSeventy specific pathogen-free (SPF) Sprague-Dawley (SD) rats were randomly divided into a control group (n=15) and a modeling group (n=55). Rats in the modeling group were administered a 2.5% adenine suspension at a dose of 200 mg·kg-1·d-1 by gavage for 4 weeks to establish a CKD model. Successfully modeled rats were randomly divided into a model group, an irbesartan group (20.25 mg·kg-1·d-1), and Bushen Tongluo Jiangzhuo prescription low-, medium-, and high-dose groups (5.82, 11.64, and 23.28 g·kg-1·d-1, respectively), with 10 rats in each group. Each group was administered an equal volume of physiological saline, the corresponding concentration of irbesartan, or Bushen Tongluo Jiangzhuo prescription by gavage for 12 weeks. Body weight and renal function indices were dynamically monitored. Serum creatinine (SCr), blood urea nitrogen (BUN), urine albumin-to-creatinine ratio (ACR), 24-hour urinary total protein (24 hUTP), aspartate aminotransferase (AST), alanine aminotransferase (ALT), interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) levels were measured using an automatic biochemical analyzer. Renal histopathological changes were observed by hematoxylin-eosin (HE) and Masson staining. Immunohistochemistry (IHC) was used to detect the expression of PI3K, Akt, phosphorylated Akt (p-Akt), and mTOR in renal tissues. Western blot was performed to assess the protein expression of PI3K, p-Akt, Akt, phosphorylated mTOR (p-mTOR), and mTOR in renal tissues. Real-time quantitative polymerase chain reaction (Real-time PCR) was used to determine the mRNA expression levels of PI3K, Akt, and mTOR in renal tissues. ResultsCompared with the model group, rats in the irbesartan group and the low-, medium-, and high-dose Bushen Tongluo Jiangzhuo prescription groups showed significantly decreased levels of SCr, BUN, ACR, 24 hUTP, IL-1β, IL-6, and TNF-α (P<0.01). AST levels were significantly increased (P<0.01), while no significant difference was observed in ALT levels. Histopathological examination revealed that, compared with the model group, renal tubular epithelial cell edema and necrosis and Bowman's capsule dilation were alleviated, inflammatory cell infiltration was reduced, and interstitial and glomerular fibrosis was markedly improved in all treatment groups, with the most pronounced effect observed in the high-dose Bushen Tongluo Jiangzhuo prescription group. Real-time PCR results showed that mRNA expression levels of PI3K, Akt, and mTOR were significantly downregulated in the high-dose group (P<0.01). IHC results demonstrated that PI3K and p-Akt expression levels in renal tissues were significantly decreased in the high-dose group (P<0.01). Western blot analysis further confirmed that the expression levels of PI3K, p-Akt/Akt, and p-mTOR/mTOR were significantly reduced in the high-dose group (P<0.01). ConclusionBushen Tongluo Jiangzhuo prescription improves renal function indices in CKD rats, reduces collagen deposition in renal tissues, and decreases serum inflammatory factor levels. Its protective effect on renal function may be achieved by activating autophagy through downregulation of the PI3K/Akt/mTOR signaling pathway, thereby alleviating renal fibrosis.
5.Mechanism of Bushen Kaixuan Tongluo Prescription in Improving Diabetic Nephropathy Based on cAMP Signaling Pathway
Miao XU ; Baosheng ZHAO ; You WANG ; Yuzhuo CHANG ; Zehao LIU ; Lingling QIN ; Haiyan WANG ; Ming GAO ; Cuiyan LYU ; Tonghua LIU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(11):87-96
ObjectiveTo investigate the molecular mechanism by which the Bushen Kaixuan Tongluo prescription exerts a renal protective effect in mice with diabetic kidney disease (DKD) by regulating the cyclic adenosine monophosphate (cAMP) signaling pathway. MethodsThirty specific pathogen-free (SPF) male db/db mice were adaptively fed for three weeks. Mice with a random tail vein blood glucose level ≥ 11.1 mmol·L-1 and urinary albumin-creatinine ratio (ACR) ≥ 30 mg·g-1 were considered successfully modeled. The successfully modeled mice were randomly divided into five groups with six mice in each group: the model group, the low-, medium-, and high-dose Bushen Kaixuan Tongluo prescription groups (administered at doses of 7, 14, 28 g·kg-1·d-1 respectively), and the positive drug irbesartan group (administered at a dose of 20 mg·kg-1·d-1). Additionally, six db/m mice were selected as the blank group. Mice in each group were given intragastric administration of the Bushen Kaixuan Tongluo prescription at the corresponding concentrations, irbesartan, or an equal volume of pure water, and the intervention lasted for 12 weeks. During the experiment, the general conditions, body weight changes, and renal function indicators of the mice were dynamically monitored. After the intervention, a blood glucose meter was used to measure the fasting blood glucose (FBG) of the mice. An automatic biochemical analyzer was employed to detect the levels of serum creatinine (SCr), blood urea nitrogen (BUN), urinary microalbumin (uALB), ACR, aspartate aminotransferase (AST), alanine aminotransferase (ALT), total cholesterol (TC), triglycerides (TG), leptin (LEP), glycosylated serum protein (GSP), and insulin (INS) in the mice. Renal tissues were collected for hematoxylin-eosin (HE) staining, periodic acid-Schiff (PAS) staining, and Masson's trichrome staining to observe the histopathological changes. Immunohistochemistry (IHC) was used to detect the expressions of protein kinase A (PKA) and cAMP response element-binding protein (CREB) in the mice. Western blot analysis was performed to determine the expression levels of PKA, phosphorylated protein kinase A (p-PKA), CREB, phosphorylated cAMP response element-binding protein (p-CREB), and B-cell lymphoma-2 (Bcl-2) proteins in the renal tissues of the mice. Real-time quantitative polymerase chain reaction (Real-time PCR) was used to detect the mRNA expression levels of PKA, CREB, and Bcl-2 in the renal tissues of the mice. ResultsCompared with the blank group, the mice in the model group showed listlessness, decreased activity, and a significant increase in body weight (P<0.01). Biochemical indicators revealed that the levels of BUN, uALB, ACR, AST, ALT, TC, TG, FBG, LEP, GSP, and INS were significantly increased (P<0.01), while SCr showed an increasing trend with no statistically significant difference. Compared with the model group, the mice in the Bushen Kaixuan Tongluo prescription intervention groups had improved general conditions and a decreasing trend in body weight. Biochemical indicators showed that the levels of BUN, uALB, ACR, TC, GSP, and INS were significantly decreased (P<0.05), while SCr, AST, ALT, TG, and LEP showed a decreasing trend with no statistically significant difference. Renal histopathological analysis showed that the model group exhibited typical DKD pathological features such as thickening of the glomerular basement membrane, expansion of the mesangial matrix, and deposition of collagen fibers in the renal tubulointerstitium, and all treatment groups could alleviate the above pathological damages. The IHC results showed that compared with the blank group, the expression levels of p-PKA and p-CREB in the renal tissues of the model group were significantly decreased (P<0.01). Compared with the model group, the expression level of p-PKA in the medium-dose Bushen Kaixuan Tongluo prescription group was significantly increased (P<0.01), while the expression level of p-CREB showed an increasing trend with no statistically significant difference. Western blot results showed that compared with the blank group, the expression levels of p-PKA/PKA, p-CREB/CREB, and Bcl-2 in the model group were significantly decreased (P<0.05). Compared with the model group, the expression levels of these proteins in the medium-dose Bushen Kaixuan Tongluo prescription group were significantly increased (P<0.01). Real-time PCR results showed that compared with the blank group, the mRNA expressions of PKA, CREB, and Bcl-2 in the model group were significantly down-regulated (P<0.05). Compared with the model group, the mRNA expressions of these genes in the medium-dose Bushen Kaixuan Tongluo prescription group were significantly up-regulated (P<0.05). ConclusionThe Bushen Kaixuan Tongluo prescription can improve the liver and kidney functions of db/db mice, correct lipid metabolism disorders and glucose metabolism imbalance. Its renal protective effect is associated with up-regulating the cAMP signaling pathway to improve renal fibrosis and reduce the level of oxidative stress, thereby protecting renal function.
6.m6ATEpre: Predicting YTHDF1-mediated mRNA Translation Efficiency Regulated by m6A Sites via Multi-omics Data Integration
Teng ZHANG ; Ming ZHANG ; Shao-Wu ZHANG ; Lian LIU
Progress in Biochemistry and Biophysics 2026;53(4):1087-1102
ObjectiveThe most prevalent mRNA modification, N6-methyladenosine (m6A) plays an important role in various RNA metabolism, including gene expression and translation. By recruiting different “reader” proteins and their cofactors, m6A modification can affect messenger RNA (mRNA) degradation, splicing, nuclear export and translation. However, the selective mechanism by which m6A sites regulate mRNA translation through m6A reader YTHDF1 binding remains poorly understood, due to a lack of computational methods for identifying context-specific m6A sites that regulate translation. To address this, we developed a novel computational framework named m6ATEpre, the first tool designed to predict cell-specific m6A sites that regulate translation efficiency. Methodsm6ATEpre integrates multi-omics data, introduces a novel feature representation strategy for m6A site sequences, and employs an autoencoder to effectively capture embedded feature representations. Specifically, m6ATEpre first integrated MeRIP-seq data and PAR-CLIP data through overlapping m6A sites with YTHDF1 binding sites and identified YTHDF1-mediated m6A sites. Then, m6ATEpre detected the translation gene by analyzing the Ribo-seq data under YTHDF1 knockdown vs control condition. Genes whose translation is mediated by YTHDF1 in an m6A-dependent manner were identified by a significant decrease in translation efficiency upon YTHDF1 knockdown. Next, we proposed a binary vector indicating the presence or absence of YTHDF1 binding motifs to characterize each m6A site sequence. This represents a novel feature representation strategy for m6A sites. m6ATEpre utilized the autoencoder to extract the potentially important feature representations and constructed a multilayer perceptron neural networks model to predict potential m6A sites that regulating translation efficiency. ResultsA comprehensive evaluation of m6ATEpre was conducted through a series of experiments. We compared its performance against that of a similar prediction task model, as well as other classifiers. The results indicate that m6ATEpre achieved the best prediction performance. In addition, we analyzed different feature representation strategies and performed ablation experiments to validate the rationality of the model design. The results demonstrate that our proposed feature representation strategy has a greater advantage in improving prediction performance. In the HeLa cell line, bioinformatic analysis of the metagene distribution and sequence minimum free energy of m6A sites regulating translation efficiency (m6A-reg-TE sites) revealed their specific properties in translation regulation. Functional enrichment analysis indicated that m6A-reg-TE genes are associated with specific biological processes and KEGG pathways. By integrating the binding sites of YTHDF1 co-factors with m6A-reg-TE sites, we revealed that YTHDF1-mediated and m6A-dependent translation efficiency regulation requires the cooperation of multiple translation-regulatory RNA-binding proteins among its co-factors in the HeLa cell line. Furthermore, we extended our predictions to the dataset of the HEK293T cell line. Similarly, bioinformatic analysis of the metagene distribution and functional enrichment revealed the cell-specific characteristic of these predicted m6A-reg-TE sites in HEK293T cells. Likewise, integrated analysis of multiple YTHDF1 co-factors and m6A-reg-TE sites predicted in the HEK293T cell line reveals their m6A-dependent cooperation in regulating translation efficiency. Conclusionm6ATEpre is a timely tool that will advance our understanding of the mechanisms of m6A regulation in translation efficiency. The source code and datasets used in this work can be downloaded from
7.Establishment and Preliminary Analysis of GP73 Interactome Using Proximity-dependent Labeling Technology
Mu-Yi LIU ; Chang ZHANG ; Meng-Xin YANG ; Xin-Long YAN ; Lu-Ming WAN ; Cong-Wen WEI
Progress in Biochemistry and Biophysics 2026;53(3):711-723
ObjectiveProtein-protein interactions (PPIs) are fundamental to the execution of biological functions within living cells. However, traditional biochemical methods, such as co-immunoprecipitation (Co-IP), often fail to capture transient, weak, or membrane-associated interactions due to the stringent detergent requirements for cell lysis. Proximity labeling (PL) has emerged in recent years as a transformative technology for mapping the proteomes of specific subcellular compartments and identifying dynamic interactomes in situ. Golgi protein 73 (GP73, also known as GOLPH2), a resident type II Golgi transmembrane protein, is a well-recognized clinical biomarker for liver diseases, including hepatocellular carcinoma (HCC). Despite its clinical significance, the comprehensive physiological and pathological functions of GP73 remain partially understood. This study aims to establish an APEX2-mediated proximity labeling system specifically targeting GP73 to map its interactome in a living cellular environment, thereby providing new insights into its molecular roles and regulatory mechanisms. MethodsTo achieve spatial specificity, we first constructed a stable cell line expressing a fusion protein consisting of GP73 and the engineered soybean peroxidase APEX2. The localization of the GP73-APEX2 fusion protein was validated to ensure it correctly targeted the Golgi apparatus. The proximity labeling reaction was initiated by incubating the cells with biotin-phenol (BP) for 30 min, followed by a brief (1 min) treatment with1 mmol/L hydrogen peroxide (H2O2). This catalytic reaction converts BP into highly reactive, short-lived biotin-phenoxyl radicals that covalently attach to endogenous proteins within a small labeling radius of the GP73-APEX2 enzyme. Subsequently, the cells were quenched, and biotinylated proteins were enriched using high-affinity streptavidin-coated magnetic beads. The captured “neighbor” proteins were subjected to on-bead digestion and analyzed via liquid chromatography-tandem mass spectrometry (LC-MS/MS) for high-throughput identification. Rigorous bioinformatics analysis, including Gene Ontology (GO) enrichment, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, and protein-protein interaction network mapping, was performed to interpret the biological significance of the identified candidates. ResultsOur results demonstrate the successful establishment of a robust and sensitive APEX2-based proximity labeling system for GP73. We identified a total of 95 high-confidence interacting proteins that were significantly enriched in the GP73 proximity proteome compared to control groups. Bioinformatics analysis revealed that these interactors were predominantly associated with biological processes such as vesicular transport, protein localization, and, most notably, molecular functions related to “ribosome binding” and “translation regulation”. This suggested an unexpected role for the Golgi-resident GP73 in the cellular translation machinery. To validate these findings, we performed targeted biochemical assays which confirmed a direct interaction between GP73 and the subunits of the eukaryotic translation initiation factor 3 (eIF3) complex, specifically EIF3G and EIF3I. Furthermore, functional validation using the surface sensing of translation (SUnSET) assay—a non-radioactive method to monitor protein synthesis—revealed that the overexpression of GP73 significantly promoted global protein translation levels in the cell, whereas its depletion or inhibition resulted in reduced translation efficiency. ConclusionThis study successfully utilized APEX2-mediated proximity labeling to provide the first systematic map of GP73 interactome in living cells. Our findings uncover a novel, unconventional function of GP73 as a regulator of cellular protein translation, likely mediated through its interaction with the eIF3 complex. This discovery significantly broadens our understanding of the biological roles of GP73 beyond its traditional function in the Golgi apparatus and suggests that it may act as a bridge between Golgi-related trafficking and the protein synthesis machinery. Furthermore, the technical framework established in this study provides a valuable template for investigating other complex organelle-associated protein networks and resolving transient macromolecular interactions in various physiological and pathological contexts.
8.Expert Consensus on Clinical Application of Qidong Yixin Oral Liquid
Changkuan FU ; Xiaochang MA ; Mingjun ZHU ; Yue DENG ; Hongxu LIU ; Mingxue ZHANG ; Ying CHEN ; Yan ZHOU ; Ling ZHANG ; Jianhua FU ; Wei YANG ; Yu'er HU ; Ming CHEN ; Yanming XIE ; Yuanyuan LI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(4):147-158
The prescription of Qidong Yixin oral liquid is derived from the experience of national medical master Ren Jixue in treating viral myocarditis (VMC). It has the functions of tonifying Qi, nourishing the heart,calming the mind, and relieving palpitations. It is used to treat VMC and angina pectoris of coronary heart disease caused by deficiency of both Qi and Yin. However,the understanding of its efficacy evidence, advantageous aspects, dosage and administration, and medication safety remains insufficient in clinical practice. Therefore,the development of the Expert Consensus on the Clinical Application of Qidong Yixin Oral Liquid (hereinafter referred to as consensus) was initiated. Consensus strictly followed the process and methods of the expert consensus on the clinical application of Chinese patent medicines of the China Association of Chinese Medicine,successively completing multiple tasks such as the consensus project initiation,determination of clinical problems,evidence search and evaluation,formation of recommendation opinions and consensus suggestions,solicitation of opinions,peer review, submission for review and release, and so on. Consensus formed a total of 10 recommendation opinions and 12 consensus suggestions,clarifying the clinical positioning,efficacy advantages,syndrome differentiation,dosage and administration,combination therapy,timing of medication,adverse reactions,contraindications, and precautions of Qidong Yixin oral liquid,indicating that it has good clinical advantages and safety in the treatment of VMC and angina pectoris of coronary heart disease,providing norms and references for physicians to safely and rationally apply Qidong Yixin oral liquid. Consensus was reviewed and approved for release by the Standardization Office of the China Association of Chinese Medicine on December 23, 2024. Standard number:GSCACM-376-2024.
9.Improving microclimate standards in primary and secondary school classrooms to promote student health
ZHANG Fengyun, WU Ming, LIU Mingfa, YANG Dongling, LUO Chunyan
Chinese Journal of School Health 2026;47(2):153-157
Abstract
The study examines the development and application of microclimate standards for primary and secondary school classrooms, so as to ensure and promote the healthy growth of primary and secondary school students. The paper systematically reviews relevant domestic and international standards, analyzes the problems and shortcomings arising from their practical application and proposes effective countermeasures, in order to provide robust references aimed at optimizing the classroom environment in primary and secondary schools for student health, as well as offering practical support to advance the construction of a healthy China.
10.Investigation on the microclimate of primary and secondary school classrooms in five provinces and municipalities of China in winter
Chinese Journal of School Health 2026;47(2):158-162
Objective:
To understand the microclimate in primary and secondary school classrooms for the study period during the winter heating season, so as to provide a reference for the revision and improvement of relevant health standards.
Methods:
In December 2024, stratified random sampling was used to select 30 primary and secondary schools and 180 classrooms from the northern regions with centralized heating (Liaoning Province, Tianjin City) and the southern regions without centralized heating (Shanghai City, Anhui Province, and Jiangxi Province). Indoor temperature, relative humidity, wind speed, CO 2 and other indicators were measured on site. Variance analysis, t-test, Mann-Whitney U test and Kruskal-Wallis H test were used to analyze the differences in the microclimate of classrooms among regions and urban and rural differences.
Results:
The average temperature in the middle of the classrooms tested on site was (16.47±4.72)℃, and the variance analysis showed that the difference between the regions was statistically significant ( F=27.80, P <0.01). Among them, Tianjin had the highest average temperature of (20.43± 2.12 )℃, followed by Liaoning (19.03±2.23)℃, Shanghai (15.33±5.32)℃, Anhui (12.79±1.74)℃, and Jiangxi (11.69± 1.68 )℃. Horizontal temperature difference was 0.90 (0.50, 1.60)℃, the vertical temperature difference was 0.20 (0.10,0.60)℃, the average relative humidity was (44.39±16.16)%, the wind speed was 0.03(0.01,0.11)m/s, and the differences among different provinces and cities were statistically significant ( H/F =40.62, 82.69, 95.06, 55.28, all P <0.01). The average CO 2 volume concentration in urban areas of Tianjin, Liaoning, and Shanghai was 0.21(0.16,0.30)%, and there was no statistically significant difference ( H=4.65, P =0.10). There were grade differences in relative humidity ( F =3.71, 6.21) and CO 2 ( H =14.72, 12.92) in the north and the south (all P <0.05). In addition, the temperature, relative humidity, wind speed and CO 2 in the middle of the classroom were 42.8%, 67.8%, 100.0% and 22.2% respectively.
Conclusions
The temperature in the middle of the classroom in the non centralized heating area is lower than the standard, the relative humidity of classroom in the centralized heating area is lower than the standard,and the CO 2 in the classroom in winter is lower than the standard. It is recommended to install heating facilities in schools with low temperatures to increase the temperature and increase the frequency of ventilation in classrooms or adopt mechanical ventilation strategies to reduce CO 2 volume concentration.


Result Analysis
Print
Save
E-mail