1.Perioperative immune dynamics and clinical outcomes in patients undergoing on-pump cardiac surgery
Zhiyuan CHENG ; Xinyi LIAO ; Juan WU ; Ping YANG ; Tingting WANG ; Qinjuan WU ; Wentong MENG ; Zongcheng TANG ; Jiayi SUN ; Jia TAN ; Jing LIN ; Dan LUO ; Hao WANG ; Chaonan LIU ; Jiyue XIONG ; Liqin LING ; Jing ZHOU ; Lei DU
Chinese Journal of Blood Transfusion 2026;39(1):31-43
Objective: To characterize perioperative dynamic changes in immune-cell phenotypes and inflammatory cytokines in patients undergoing CPB (cardiopulmonary bypass) cardiac surgery, and to explore their associations with postoperative outcomes. Methods: In this prospective cohort study, 120 adult patients who underwent elective cardiac surgery under CPB at West China Hospital from May 2022 to March 2023 were enrolled. Perioperative immune-cell phenotypes and concentrations of 40 inflammation-related cytokines were measured. The primary outcomes were the sequential organ failure assessment (SOFA) score at 24 h after surgery and ΔSOFA (the peak SOFA score within 48 h after surgery minus the preoperative SOFA score). Secondary outcomes included major adverse cardiovascular events (MACE), acute kidney injury (AKI), respiratory failure, severe liver injury, and infection. Results: The mean age of enrolled patients was 57±10 years. Of these, 52% (62/120) were male and 90% (108/120) underwent valve surgery. During the rewarming to the end of CPB, neutrophil counts rapidly increased (7.39×10
/L vs preoperative 3.07×10
/L, P<0.001), with significant upregulation of CD11b (7.30×10
/L vs preoperative 3.05×10
/L, P<0.001) and CD54 (7.15×10
/L vs preoperative 2.99×10
/L, P<0.001). Lymphocyte counts increased at the end of CPB (1.75×10
/L vs preoperative 1.12×10
/L, P<0.001) but decreased significantly at 24 h after surgery (0.59×10
/L vs preoperative 1.12×10
/L, P<0.001). Plasma analysis showed that multiple pro-inflammatory cytokines increased during CPB and remained elevated up to 24 h after surgery; five chemokines and the anti-inflammatory cytokine IL-10 peaked at the end of CPB. The SOFA score increased from 1 (1, 2) preoperatively to 7 (5, 10) at 24 h after surgery, with a ΔSOFA of 6 (4, 8). Within 30 days after surgery, 48 patients (40.0%) developed AKI, 17 (14.2%) developed infection, 4 (3.3%) developed severe liver injury, 3 (2.5%) developed respiratory failure, and 3 (2.5%) experienced MACE. During the 2-year follow-up, 8 patients (6.7%) experienced MACE and 5 (4.2%) died. Conclusion: Multi-organ dysfunction is common after cardiac surgery under CPB (median ΔSOFA, 6), accompanied by perioperative activation of multiple immune-cell subsets and upregulation of pro-inflammatory, anti-inflammatory, and chemotactic mediators. This study provides data-driven evidence and research clues for further investigation of the associations between CPB-related immune perturbations and postoperative organ dysfunction and clinical outcomes.
2.Effects of Huanglian Jiedutang on Neutrophil Infiltration in Brain of MCAO Mice via Regulation of Chemokine Expression in Exosomes
Haojia ZHANG ; Kai WANG ; Zijin SUN ; Chunyu WANG ; Wei SHAO ; Kunjing LIU ; Liyang DONG ; Dan CHEN ; Wenxiu XU ; Chuanzun WANG ; Wen WANG ; Changxiang LI ; Xueqian WANG ; Fafeng CHENG ; Qingguo WANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):42-53
ObjectiveTo investigate whether Huanglian Jiedutang can inhibit neutrophil infiltration in the brains of middle cerebral artery occlusion (MCAO) mice by regulating the expression of neutrophil-related chemokines in exosomes, thereby achieving therapeutic effects. MethodsA total of 130 male specific pathogen-free (SPF) C57BL/6J mice were randomly divided into four groups: Sham-operated group, MCAO model group, Huanglian Jiedutang group (6 g·kg-1), and Ginaton group (21.6 mg·kg-1), with 10 mice in the Ginaton group and 40 mice in each of the remaining three groups. Mice in the Huanglian Jiedutang group and the Ginaton group were administered the corresponding drugs by oral gavage once daily at a volume of 0.15 mL·(10 g)-1 for 7 consecutive days, while the sham-operated and model groups received an equal volume of saline via the same route. After 7 days, MCAO surgery was performed. The distal and proximal ends of the right common carotid artery (CCA) were ligated, a small incision was made between the two ligatures, and a silicone rubber-coated monofilament with a rounded tip was inserted into the lumen to occlude the CCA. The filament was left in place for 1 h to establish a focal cerebral ischemia model. At 24 h after modeling, mice were evaluated. Neurological function was assessed using the Longa score. Cerebral infarct volume was measured by 2,3,5-triphenyltetrazolium chloride (TTC) staining. Cerebral blood flow was observed by laser speckle imaging. Hematoxylin and eosin (HE) staining and Nissl staining were used to observe pathological changes in brain tissues. Exosomes were isolated from mouse plasma and brain tissues by ultracentrifugation and molecular size exclusion and identified by electron microscopy, particle size analysis, and protein blotting. Long-chain RNA libraries of exosomes were constructed and sequenced. Real-time quantitative reverse transcription polymerase chain reaction (Real-time PCR) was used to detect the mRNA expression of inflammatory factors and neutrophil-related chemokines in exosomes from plasma and brain tissues of each group. Enzyme-linked immunosorbent assay (ELISA) was used to detect the protein expression of inflammatory factors and neutrophil-related chemokines in exosomes from brain tissues of each group. Immunohistochemistry was used to detect the expression of the neutrophil-specific protein myeloperoxidase (MPO) in the brains of mice in each group. ResultsCompared with the sham-operated group, the model group showed decreased neurological function scores (P<0.01), obvious cerebral infarction (P<0.01), reduced cerebral blood flow (P<0.01), neuronal necrosis in the brain, and decreased numbers of Nissl bodies (P<0.01). The mRNA expression levels of IL-1β, MPO, CXCL1, CXCL2, CXCL3, CXCL10, CCL2, and CCL3 in exosomes from plasma and brain tissues were significantly increased (P<0.05, P<0.01). The protein expression levels of IL-1β, MPO, CXCL2, and CXCL10 in exosomes from brain tissues were increased (P<0.05, P<0.01), and MPO-positive rates and mean optical density values in brain tissues were elevated (P<0.01). Compared with the model group, the Huanglian Jiedutang group and the Ginaton group showed increased neurological function scores (P<0.05), reduced cerebral infarct volume (P<0.01), restored cerebral blood flow (P<0.01), reduced necrotic cells in the brain, and increased numbers of Nissl bodies (P<0.01). In the Huanglian Jiedutang group, the mRNA expression levels of IL-1β, MPO, CXCL1, CXCL2, CXCL3, CXCL10, CCL2, and CCL3 in exosomes from plasma and brain tissues were decreased (P<0.05, P<0.01). The protein expression levels of IL-1β, MPO, CXCL2, and CXCL10 in exosomes from brain tissues were reduced (P<0.05, P<0.01), and MPO-positive rates and mean optical density values in brain tissues were decreased (P<0.01). ConclusionHuanglian Jiedutang can effectively regulate the expression of neutrophil-related chemokines in exosomes from plasma and brain tissues of MCAO mice, thereby reducing neutrophil infiltration in the brain and achieving therapeutic effects.
3.Effects of Huanglian Jiedutang on Neutrophil Infiltration in Brain of MCAO Mice via Regulation of Chemokine Expression in Exosomes
Haojia ZHANG ; Kai WANG ; Zijin SUN ; Chunyu WANG ; Wei SHAO ; Kunjing LIU ; Liyang DONG ; Dan CHEN ; Wenxiu XU ; Chuanzun WANG ; Wen WANG ; Changxiang LI ; Xueqian WANG ; Fafeng CHENG ; Qingguo WANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):42-53
ObjectiveTo investigate whether Huanglian Jiedutang can inhibit neutrophil infiltration in the brains of middle cerebral artery occlusion (MCAO) mice by regulating the expression of neutrophil-related chemokines in exosomes, thereby achieving therapeutic effects. MethodsA total of 130 male specific pathogen-free (SPF) C57BL/6J mice were randomly divided into four groups: Sham-operated group, MCAO model group, Huanglian Jiedutang group (6 g·kg-1), and Ginaton group (21.6 mg·kg-1), with 10 mice in the Ginaton group and 40 mice in each of the remaining three groups. Mice in the Huanglian Jiedutang group and the Ginaton group were administered the corresponding drugs by oral gavage once daily at a volume of 0.15 mL·(10 g)-1 for 7 consecutive days, while the sham-operated and model groups received an equal volume of saline via the same route. After 7 days, MCAO surgery was performed. The distal and proximal ends of the right common carotid artery (CCA) were ligated, a small incision was made between the two ligatures, and a silicone rubber-coated monofilament with a rounded tip was inserted into the lumen to occlude the CCA. The filament was left in place for 1 h to establish a focal cerebral ischemia model. At 24 h after modeling, mice were evaluated. Neurological function was assessed using the Longa score. Cerebral infarct volume was measured by 2,3,5-triphenyltetrazolium chloride (TTC) staining. Cerebral blood flow was observed by laser speckle imaging. Hematoxylin and eosin (HE) staining and Nissl staining were used to observe pathological changes in brain tissues. Exosomes were isolated from mouse plasma and brain tissues by ultracentrifugation and molecular size exclusion and identified by electron microscopy, particle size analysis, and protein blotting. Long-chain RNA libraries of exosomes were constructed and sequenced. Real-time quantitative reverse transcription polymerase chain reaction (Real-time PCR) was used to detect the mRNA expression of inflammatory factors and neutrophil-related chemokines in exosomes from plasma and brain tissues of each group. Enzyme-linked immunosorbent assay (ELISA) was used to detect the protein expression of inflammatory factors and neutrophil-related chemokines in exosomes from brain tissues of each group. Immunohistochemistry was used to detect the expression of the neutrophil-specific protein myeloperoxidase (MPO) in the brains of mice in each group. ResultsCompared with the sham-operated group, the model group showed decreased neurological function scores (P<0.01), obvious cerebral infarction (P<0.01), reduced cerebral blood flow (P<0.01), neuronal necrosis in the brain, and decreased numbers of Nissl bodies (P<0.01). The mRNA expression levels of IL-1β, MPO, CXCL1, CXCL2, CXCL3, CXCL10, CCL2, and CCL3 in exosomes from plasma and brain tissues were significantly increased (P<0.05, P<0.01). The protein expression levels of IL-1β, MPO, CXCL2, and CXCL10 in exosomes from brain tissues were increased (P<0.05, P<0.01), and MPO-positive rates and mean optical density values in brain tissues were elevated (P<0.01). Compared with the model group, the Huanglian Jiedutang group and the Ginaton group showed increased neurological function scores (P<0.05), reduced cerebral infarct volume (P<0.01), restored cerebral blood flow (P<0.01), reduced necrotic cells in the brain, and increased numbers of Nissl bodies (P<0.01). In the Huanglian Jiedutang group, the mRNA expression levels of IL-1β, MPO, CXCL1, CXCL2, CXCL3, CXCL10, CCL2, and CCL3 in exosomes from plasma and brain tissues were decreased (P<0.05, P<0.01). The protein expression levels of IL-1β, MPO, CXCL2, and CXCL10 in exosomes from brain tissues were reduced (P<0.05, P<0.01), and MPO-positive rates and mean optical density values in brain tissues were decreased (P<0.01). ConclusionHuanglian Jiedutang can effectively regulate the expression of neutrophil-related chemokines in exosomes from plasma and brain tissues of MCAO mice, thereby reducing neutrophil infiltration in the brain and achieving therapeutic effects.
4.Ershen Zhenwu Decoction Treats Chronic Heart Failure by Regulating miR-423-5p/Smad7/TGF-β1/Smads Axis and Myocardial Fibrosis Indicators
Lan GE ; Zhenpeng ZHU ; Xinyue WANG ; Dan CHENG ; Yulong LIU ; Maomao ZHANG ; Xiaoyu CHENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(3):157-165
ObjectiveTo investigate the clinical effect of Ershen Zhenwu Decoction on chronic heart failure (CHF) due to heart-kidney Yang deficiency and blood stasis and its regulatory effects on miR-423-5p/Smad7/transforming growth factor-β1 (TGF-β1)/Smads axis and myocardial fibrosis indicators. MethodsOne hundred and fourteen patients with heart failure with reduced ejection fraction (HFrEF) and heart failure with mildly reduced ejection fraction (HFmrEF) were randomly allocated into a control group and an observation group. The control group was treated with dapagliflozin tablets, sacubitril-valsartan sodium tablets, metoprolol succinate, and spironolactone, and the observation group was treated with Ershen Zhenwu Decoction on the basis of the therapy in the control group. The course of treatment was 8 weeks in both groups. The 6-min walking distance, New York Heart Association (NYHA) heart function grade, Minnesota Living with Heart Failure Questionnaire (MLHFQ) score, N-terminal pro-B-type natriuretic peptide (NT-proBNP), angiotensin Ⅱ (Ang Ⅱ), left ventricular ejection fraction (LVEF), left ventricular end-diastolic diameter (LVIDd), left ventricular end-systolic diameter (LVIDs), interventricular septum thickness at diastole (IVSd), left ventricular end-diastolic posterior wall thickness (LVPWd), left ventricular shortening fraction (FS), miR-423-5p, Smad7, Smad2, Smad3, Smad4, TGF-β1, Ang Ⅱ, type Ⅰ collagen (Col Ⅰ), type Ⅲ collagen (Col Ⅲ), mRNA levels of fibronectin (Fn) and α-smooth muscle actin (α-SMA) in the myocardial tissue were observed before and after treatment in both groups to evaluate the efficacy of cardiac function and drug safety. ResultsAfter treatment, both groups showed declined levels of NT-proBNP, Ang Ⅱ, miR-423-5p, Smad2, Smad3, Smad4, TGF-β1, Col Ⅰ, Col Ⅲ, and mRNA levels of Fn and α-SMA (P0.05), and the levels of the indicators above were lower in the observation group than in the control group (P0.05). After treatment, the Smad7 level increased obviously in both groups (P0.05) and was higher in the observation group than in the control group (P0.05). After treatment, both groups showed decreased MLHFQ scores and increased 6-min walking distance (P0.05), and the observation group had lower MLHFQ score and longer 6-min walking distance than the control group (P0.05). After treatment, the control group showed increased LVEF and FS (P0.05) and the observation group showcased decreased LVIDd and LVIDs and increased LVEF and FS (P0.05). Moreover, the observation group had lower LVIDd and LVIDs (P0.05) and higher LVEF and FS (P0.05) than the control group. The total response rate of cardiac function in the observation group was 90.38% (47/52), which was higher than that (70.59%, 36/51) in the control group (P0.05). No adverse reactions associated with Ershen Zhenwu Decoction were observed during the study period. ConclusionErshen Zhenwu Decoction can improve the cardiac function, exercise tolerance, and quality of life, regulate neuroendocrine factors, and slow down/reverse myocardial remodeling in the patients with HFrEF and HFmrEF (syndrome of heart-kidney Yang deficiency and blood stasis by regulating the miR-423-5p/Smad7/TGF-β1/Smads axis, inhibiting α-SMA and Fn expression, and alleviating myocardial fibrosis. It is worthy of further study.
5.Ershen Zhenwu Decoction Treats Chronic Heart Failure by Regulating miR-423-5p/Smad7/TGF-β1/Smads Axis and Myocardial Fibrosis Indicators
Lan GE ; Zhenpeng ZHU ; Xinyue WANG ; Dan CHENG ; Yulong LIU ; Maomao ZHANG ; Xiaoyu CHENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(3):157-165
ObjectiveTo investigate the clinical effect of Ershen Zhenwu Decoction on chronic heart failure (CHF) due to heart-kidney Yang deficiency and blood stasis and its regulatory effects on miR-423-5p/Smad7/transforming growth factor-β1 (TGF-β1)/Smads axis and myocardial fibrosis indicators. MethodsOne hundred and fourteen patients with heart failure with reduced ejection fraction (HFrEF) and heart failure with mildly reduced ejection fraction (HFmrEF) were randomly allocated into a control group and an observation group. The control group was treated with dapagliflozin tablets, sacubitril-valsartan sodium tablets, metoprolol succinate, and spironolactone, and the observation group was treated with Ershen Zhenwu Decoction on the basis of the therapy in the control group. The course of treatment was 8 weeks in both groups. The 6-min walking distance, New York Heart Association (NYHA) heart function grade, Minnesota Living with Heart Failure Questionnaire (MLHFQ) score, N-terminal pro-B-type natriuretic peptide (NT-proBNP), angiotensin Ⅱ (Ang Ⅱ), left ventricular ejection fraction (LVEF), left ventricular end-diastolic diameter (LVIDd), left ventricular end-systolic diameter (LVIDs), interventricular septum thickness at diastole (IVSd), left ventricular end-diastolic posterior wall thickness (LVPWd), left ventricular shortening fraction (FS), miR-423-5p, Smad7, Smad2, Smad3, Smad4, TGF-β1, Ang Ⅱ, type Ⅰ collagen (Col Ⅰ), type Ⅲ collagen (Col Ⅲ), mRNA levels of fibronectin (Fn) and α-smooth muscle actin (α-SMA) in the myocardial tissue were observed before and after treatment in both groups to evaluate the efficacy of cardiac function and drug safety. ResultsAfter treatment, both groups showed declined levels of NT-proBNP, Ang Ⅱ, miR-423-5p, Smad2, Smad3, Smad4, TGF-β1, Col Ⅰ, Col Ⅲ, and mRNA levels of Fn and α-SMA (P0.05), and the levels of the indicators above were lower in the observation group than in the control group (P0.05). After treatment, the Smad7 level increased obviously in both groups (P0.05) and was higher in the observation group than in the control group (P0.05). After treatment, both groups showed decreased MLHFQ scores and increased 6-min walking distance (P0.05), and the observation group had lower MLHFQ score and longer 6-min walking distance than the control group (P0.05). After treatment, the control group showed increased LVEF and FS (P0.05) and the observation group showcased decreased LVIDd and LVIDs and increased LVEF and FS (P0.05). Moreover, the observation group had lower LVIDd and LVIDs (P0.05) and higher LVEF and FS (P0.05) than the control group. The total response rate of cardiac function in the observation group was 90.38% (47/52), which was higher than that (70.59%, 36/51) in the control group (P0.05). No adverse reactions associated with Ershen Zhenwu Decoction were observed during the study period. ConclusionErshen Zhenwu Decoction can improve the cardiac function, exercise tolerance, and quality of life, regulate neuroendocrine factors, and slow down/reverse myocardial remodeling in the patients with HFrEF and HFmrEF (syndrome of heart-kidney Yang deficiency and blood stasis by regulating the miR-423-5p/Smad7/TGF-β1/Smads axis, inhibiting α-SMA and Fn expression, and alleviating myocardial fibrosis. It is worthy of further study.
6.Qualitative and quantitative analysis of chemical components of different processed products of Corni Fructus by UPLC-Q-TOF-MS and UPLC-QqQ-MS/MS.
Li-Qiang ZHANG ; Guo-Shun SHAN ; Yi-Dan HONG ; Si-Han LIU ; Guo-Wei XU ; Hui GAO ; Wei WANG ; Cheng-Guo JU
China Journal of Chinese Materia Medica 2025;50(8):2145-2158
Qualitative and quantitative analysis methods for chemical components of different processed products of Corni Fructus were established to systematically characterize and identify these components, and the content of the main differential components was determined. The chemical components of different processed products of Corni Fructus were collected using ultra-high performance liquid chromatography-quadrupole time-of-flight tandem mass spectrometry(UPLC-Q-TOF-MS). Through analysis of self-built databases, literature, and reference standards, a total of 93 components were obtained, including 19 iridoids, 15 flavonoids, 16 organic acids, eight triterpenoids, eight tannins, four amino acids, two polysaccharides, five olefins, and 16 other compounds. Additionally, by using multivariate statistical methods, the differential components between different processed products of Corni Fructus were screened under the conditions of VIP>1.0 and FC<0.5 or FC>2.0 and P<0.05. The PCA and OPLS-DA results showed differences in the chemical components between different processed products of Corni Fructus. A total of 21 differential components were screened, including tartaric acid, morroniside, and rutin. On this basis, ultra-high performance liquid chromatography-triple quadrupole tandem mass spectrometry(UPLC-QqQ-MS/MS) was used to determine the content of 10 main common differential components, including gallic acid, morroniside, ursolic acid, loganin, swertiamarin, rutin, 5-hydroxymethylfurfural, cornuside Ⅰ, quercetin, and oleanolic acid. The above 10 components showed a good linear relationship within the determined concentration range, with the precision, stability, repeatability, and sample recovery rate all meeting the requirements. Compared with that in Corni Fructus, the content of iridoid glycosides in wine-prepared Corni Fructus and wine-and honey-prepared Corni Fructus decreased, while the content of gallic acid, rutin, quercetin, 5-hydroxymethylfurfural, ursolic acid, and oleanolic acid increased. Compared with wine-prepared Corni Fructus, wine-and honey-prepared Corni Fructus showed varying degrees of increase in all other components, except for a slight decrease in gallic acid content. In summary, this study clarified the influence of different processing methods on the chemical components of Corni Fructus, providing a theoretical basis for the scientific connotation, overall quality evaluation, and clinically rational application of Corni Fructus processing in the future.
Tandem Mass Spectrometry/methods*
;
Chromatography, High Pressure Liquid/methods*
;
Cornus/chemistry*
;
Drugs, Chinese Herbal/chemistry*
;
Fruit/chemistry*
7.A qualitative study of sensory hypersensitivity in children with autism spectrum disorder and individuals with subclinical autistic traits.
Yan-Cheng LIU ; Dan-Ling ZHU ; Xin-Ru HONG ; Han-Yu ZHOU
Chinese Journal of Contemporary Pediatrics 2025;27(9):1082-1088
OBJECTIVES:
To explore the manifestations of sensory hypersensitivity in children with autism spectrum disorder (ASD) and individuals with subclinical autistic traits.
METHODS:
From September 2021 to April 2023, interviews were conducted on 18 college students with high levels of autistic traits and sensory hypersensitivity selected using the Adolescent/Adult Sensory Profile and the Autism Spectrum Quotient (as subclinical group). Interviews were also conducted on the parents of 11 children with ASD aged 6-13 years selected using the intensity sampling method (as clinical group). Qualitative content analysis and thematic analysis were performed on the interview texts to investigate the scenarios and impact of sensory hypersensitivity and coping strategies in the two groups.
RESULTS:
The Autism Spectrum Quotient score was significantly positively correlated with sensory hypersensitivity (r=0.504, P<0.001; n=225). Sensory modalities that triggered sensitive reactions were similar in the subclinical and clinical groups, with auditory hypersensitivity being the most prominent. Sensory hypersensitivity had significant negative impact on emotional wellbeing, cognitive ability, physical health, interpersonal relationships, and general adaptive functioning. These dimensions were interconnected, culminating in a holistic experience. Avoidance was the most commonly used coping mechanism for both groups (16 subclinical participants mentioned it 44 times; 8 clinical participants mentioned it 40 times). The clinical group required more support and help from their caregivers (18 times), while the subclinical group used more proactive coping strategies (e.g., facing sensitive scenarios, distracting attention) to alleviate the negative impact (51 times).
CONCLUSIONS
Sensory hypersensitivity is a common manifestation across the broad ASD phenotype, posing negative effects on multiple aspects of their lives. There is an urgent need for social tolerance and acceptance as well as the development of effective intervention measures.
Humans
;
Child
;
Autism Spectrum Disorder/physiopathology*
;
Male
;
Female
;
Adolescent
;
Adaptation, Psychological
;
Autistic Disorder/psychology*
;
Sensation Disorders/etiology*
;
Qualitative Research
8.BRD4 regulates m6A of ESPL1 mRNA via interaction with ALKBH5 to modulate breast cancer progression.
Haisheng ZHANG ; Linlin LU ; Cheng YI ; Tao JIANG ; Yunqing LU ; Xianyuan YANG ; Ke ZHONG ; Jiawang ZHOU ; Jiexin LI ; Guoyou XIE ; Zhuojia CHEN ; Zongpei JIANG ; Gholamreza ASADIKARAM ; Yanxi PENG ; Dan ZHOU ; Hongsheng WANG
Acta Pharmaceutica Sinica B 2025;15(3):1552-1570
The interaction between m6A-methylated RNA and chromatin modification remains largely unknown. We found that targeted inhibition of bromodomain-containing protein 4 (BRD4) by siRNA or its inhibitor (JQ1) significantly decreases mRNA m6A levels and suppresses the malignancy of breast cancer (BC) cells via increased expression of demethylase AlkB homolog 5 (ALKBH5). Mechanistically, inhibition of BRD4 increases the mRNA stability of ALKBH5 via enhanced binding between its 3' untranslated regions (3'UTRs) with RNA-binding protein RALY. Further, BRD4 serves as a scaffold for ubiquitin enzymes tripartite motif containing-21 (TRIM21) and ALKBH5, resulting in the ubiquitination and degradation of ALKBH5 protein. JQ1-increased ALKBH5 then demethylates mRNA of extra spindle pole bodies like 1 (ESPL1) and reduces binding between ESPL1 mRNA and m6A reader insulin like growth factor 2 mRNA binding protein 3 (IGF2BP3), leading to decay of ESPL1 mRNA. Animal and clinical studies confirm a critical role of BRD4/ALKBH5/ESPL1 pathway in BC progression. Further, our study sheds light on the crosstalks between histone modification and RNA methylation.
9.A cisplatin prodrug-based self-assembling ozone delivery nanosystem sensitizes radiotherapy in triple-negative breast cancer.
Tianyue XU ; Dan ZHENG ; Meixu CHEN ; Linlin SONG ; Zhihui LIU ; Yan CHENG ; Yujie ZHAO ; Liwen HUANG ; Yixuan LI ; Zhankun YANG ; Cong LI ; Biao DONG ; Jing JING ; Hubing SHI
Acta Pharmaceutica Sinica B 2025;15(5):2703-2722
Lacking therapeutic targets highlights the crucial roles of chemotherapy and radiotherapy in the clinical management of triple-negative breast cancer (TNBC). To relieve the side effects of the chemoradiotherapy combination regimen, we design and develop a self-assembled micelle nanosystem consisting of perfluorocarbon chain-modified cisplatin prodrug. By incorporating perfluorodecalin, this nanosystem can effectively carry ozone and promote irradiation-derived reactive oxygen species (ROS) production. By leveraging the perfluorocarbon sidechain, the nanosystem exhibits efficient internalization by TNBC cells and effectively escapes from lysosomal entrapment. Under X-ray irradiation, ozone-generated ROS disrupts the intracellular redox balance, thereby facilitating the release of cisplatin in a reduction-responsive manner mediated by reduced glutathione. Moreover, oxygen derived from ozone decomposition enhances the efficacy of radiotherapy by alleviating tumor hypoxia. Notably, the combination of irradiation with ozone-loaded cisplatin prodrug nano system synergistically prompts antitumor efficacy and reduces cellular/systemic toxicity in vitro and in vivo. Furthermore, the combo regimen remodels the tumor microenvironment into an immune-favored state by triggering immunogenic cell death and relieving hypoxia, which provides a promising foundation for a combination regimen of immunotherapy. In conclusion, our nanosystem presents a novel strategy for integrating chemotherapy and radiotherapy to optimize the efficacy and safety of TNBC clinical treatment.
10.Single-cell RNA sequencing reveals Shen-Bai-Jie-Du decoction retards colorectal tumorigenesis by regulating the TMEM131-TNF signaling pathway-mediated differentiation of immunosuppressive dendritic cells.
Yuquan TAO ; Yinuo MA ; Limei GU ; Ye ZHANG ; Qinchang ZHANG ; Lisha ZHOU ; Jie PAN ; Meng SHEN ; Xuefei ZHUANG ; Linmei PAN ; Weixing SHEN ; Chengtao YU ; Dan DONG ; Dong ZHANG ; Tingsheng LING ; Yang SUN ; Haibo CHENG
Acta Pharmaceutica Sinica B 2025;15(7):3545-3560
Colorectal tumorigenesis generally progresses from adenoma to adenocarcinoma, accompanied by dynamic changes in the tumor microenvironment (TME). A randomized controlled trial has confirmed the efficacy and safety of Shen-Bai-Jie-Du decoction (SBJDD) in preventing colorectal tumorigenesis. However, the mechanism remains unclear. In this study, we employed single-cell RNA sequencing (scRNA-seq) to investigate the dynamic evolution of the TME and validated cell infiltration with multiplex immunohistochemistry and flow cytometry. Bulk RNA sequencing was utilized to assess the underlying mechanisms. Our results constructed the mutually verifiable single-cell transcriptomic atlases in Apc Min/+ mice and clinical patients. There was a marked accumulation of CCL22+ dendritic cells (DCs) and an enhanced immunosuppressive action, which SBJDD and berberine reversed. Combined treatment with cholesterol and lipopolysaccharide induced characteristic gene expression of CCL22+ DCs, which may represent "exhausted DCs". Intraperitoneal injection of these DCs after SBJDD treatment eliminated its therapeutic effects. TMEM131 derived CCL22+ DCs generation by TNF signaling pathway and may be a potential target of berberine in retarding colorectal tumorigenesis. These findings emphasize the role of exhausted DCs and the regulatory mechanisms of SBJDD and berberine in colorectal cancer (CRC), suggesting that the multi-component properties of SBJDD may help restore TME homeostasis and offer novel cancer therapy.

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