1.Construction and validation of a clinical predictive model for early neurological deterioration in patients with mild acute ischemic stroke
Weilai LI ; Weihong WU ; Ying JI
Journal of Apoplexy and Nervous Diseases 2025;42(4):321-327
Objective To investigate the risk factors for early neurological deterioration in mild acute ischemic stroke,to construct a clinical predictive model,and to perform internal validation of this model. Methods A retrospective analysis was performed for 739 patients with mild acute ischemic stroke who were admitted to Department of Neurology,Kuntong Hospital of Zunhua,from October 2020 to December 2023,and they were randomly divided into a training set with 534 patients (72.3%) and a validation set with 205 patients (27.7%) at a ratio of 7∶3. Univariate and multivariate logistic regression analyses were performed for the training set to determine the risk factors for early neurological deterioration in mild acute ischemic stroke. A clinical predictive model was constructed,and internal validation was performed in terms of discriminatory ability,calibration,and clinical decision making. A nomogram was plotted. Results The multivariate logistic regression analysis showed that female sex (OR=1.87,95% CI 1.14~3.09,P=0.014),time window ≤6 hours (OR=3.10,95%CI 1.56~6.19,P=0.001),a baseline NIHSS score of 2 points (OR=3.72,95%CI 1.30~10.61,P=0.014),a baseline NIHSS score of 3 points (OR=4.24,95%CI 1.45~12.35,P=0.008),a TOAST classification of large artery atherosclerosis (OR=3.88,95%CI 2.20~6.83,P<0.001),and the responsible arteries of the basilar artery,the middle cerebral artery,and the internal carotid artery (OR=8.39,95%CI 2.28~30.85,P=0.001; OR=6.22,95%CI 1.78~21.71,P=0.004; OR=5.38,95%CI 1.15~25.13,P=0.032) were independent risk factors for early neurological deterioration in mild acute ischemic stroke. The clinical predictive model constructed showed a moderate discriminatory ability (AUC>0.7),good calibration (P>0.05) in the Hosmer-Lemeshow goodness-of-fit test),and good clinical benefits in both the training set and the validation set. Conclusion This clinical predictive model can effectively predict the onset of early neurological deterioration in mild acute ischemic stroke and guide clinicians to make decisions,and therefore,it holds promise for clinical application.
Nomograms
2.Applying network pharmacology and molecular docking in the screening for molecular mechanisms of Ampalaya (Momordica charantia L.) and Banaba (Lagerstroemia speciosa L.) against Type 2 Diabetes Mellitus
Robertson G. Rivera ; Patrick Junard S. Regidor ; Edwin C. Ruamero, Jr. ; Czarina Dominique R. Delos Santos ; Clinton B. Gomez ; Eric John V. Allanigue ; Melanie V. Salinas
Acta Medica Philippina 2024;58(8):108-124
Background and Objectives:
Type 2 diabetes mellitus (T2DM) is a global health concern affecting more than 400 million people worldwide. Diabetic neuropathy, nephropathy, retinopathy, and cardiovascular complications lead to debilitating effects to patients. To prevent these, the treatment goal is to lower the blood sugar levels and maintain at a normal range which is achieved through conventional treatments like insulin and oral hypoglycemic agents. However, the high cost of these medications implicates patient treatment outcomes. Hence, alternatives are sought for including the use of herbal medicines. Momordica charantia (MC) and Lagerstroemia speciosa (LS) are common herbal medicines used to manage T2DM. In the Philippines, these herbal preparations are validated for their glucose lowering effects and are commonly found in combination in food supplements. The study aims to screen the possible mechanisms of compounds present in these herbal medicines which can offer possible explanations for their synergistic effects and rationalization of their combination in preparations.
Methods:
Network pharmacology was employed to determine pivotal proteins that are targeted by MC and LS compounds. Molecular docking was then done to evaluate the favorability of the binding of these compounds toward their target proteins.
Results:
Our results showed that TNF, HSP90AA1, MAPK3, ALDH2, GCK, AKR1B1, TTR and RBP4 are the possible pivotal targets of MC and LS compounds in T2DM.
Conclusion
Terpenoids from MC and decanoic acid from LS are the compounds which showed favorable binding towards pivotal protein targets in T2DM. By binding towards the different key proteins in T2DM, they may exhibit their synergistic effects. However, the results of this study are bound to the limitations of computational methods and experimental validation are needed to verify our findings.
Molecular Docking Simulation
;
Network Pharmacology
;
Momordica charantia
3.Nucleobase-substituted ponatinib analogues: Molecular docking, short molecular dynamics, and drug-likeness profiling
Vince Lambert H. Padilla ; Glenn V. Alea
Philippine Journal of Health Research and Development 2024;28(2):56-66
Objectives:
This study aims to assess the drug-likeness and binding of nucleobase-substituted ponatinib analogues towards wild-type and T315I mutant BCR-ABL tyrosine kinases.
Methodology:
A total of 415 ponatinib analogues, encompassing single and combinatorial modifications on five parts of the drug
were generated, profiled in SwissADME, and subjected to molecular docking using AutoDock4. Complexes formed by the top
analogues then underwent a 100-ns molecular dynamics simulation with GROMACS.
Results:
Analogues featuring the replacement of the imidazo[1,2b]pyridazine with adenine and cytosine exhibited promising binding
free energies, attributed to the presence of primary amines that facilitate crucial hydrogen bond interactions in the hinge region.
RMSD, RMSF, and atomic distance analyses of the MD trajectories revealed that the six top analogues formed stable complexes in
their inactive DFG-out conformations. Changes in the MMPBSA and MMGBSA-calculated free energies were mainly driven by
changes in hydrogen bonds. Furthermore, drug-likeness predictions supported the formulation of most analogues for oral
administration.
Conclusion
Among the top analogues, VP10004 and VP81014 exhibited the most favorable binding free energies and interactions
with the target models, while VP10312 was identified as the most feasible candidate for synthesis.
Hydrogen Bonding
;
Molecular Dynamics Simulation
;
Molecular Docking Simulation
4.WNT7A promotes tumorigenesis of head and neck squamous cell carcinoma via activating FZD7/JAK1/STAT3 signaling.
Qingling HUANG ; Yi XIAO ; Ting LAN ; Youguang LU ; Li HUANG ; Dali ZHENG
International Journal of Oral Science 2024;16(1):7-7
Wnt signaling are critical pathway involved in organ development, tumorigenesis, and cancer progression. WNT7A, a member of the Wnt family, remains poorly understood in terms of its role and the underlying molecular mechanisms it entails in head and neck squamous cell carcinoma (HNSCC). According to the Cancer Genome Atlas (TCGA), transcriptome sequencing data of HNSCC, the expression level of WNT7A in tumors was found to be higher than in adjacent normal tissues, which was validated using Real-time RT-PCR and immunohistochemistry. Unexpectedly, overexpression of WNT7A did not activate the canonical Wnt-β-catenin pathway in HNSCC. Instead, our findings suggested that WNT7A potentially activated the FZD7/JAK1/STAT3 signaling pathway, leading to enhanced cell proliferation, self-renewal, and resistance to apoptosis. Furthermore, in a patient-derived xenograft (PDX) tumor model, high expression of WNT7A and phosphorylated STAT3 was observed, which positively correlated with tumor progression. These findings underscore the significance of WNT7A in HNSCC progression and propose the targeting of key molecules within the FZD7/JAK1/STAT3 pathway as a promising strategy for precise treatment of HNSCC.
Animals
;
Humans
;
Squamous Cell Carcinoma of Head and Neck
;
Carcinogenesis/genetics*
;
Cell Transformation, Neoplastic
;
Wnt Signaling Pathway
;
Disease Models, Animal
;
Head and Neck Neoplasms/genetics*
;
Wnt Proteins
;
Frizzled Receptors/genetics*
;
Janus Kinase 1
;
STAT3 Transcription Factor
5.Artemisia argyi extract subfraction exerts an antifungal effect against dermatophytes by disrupting mitochondrial morphology and function.
Le CHEN ; Yunyun ZHU ; Chaowei GUO ; Yujie GUO ; Lu ZHAO ; Yuhuan MIAO ; Hongzhi DU ; Dahui LIU
Chinese Journal of Natural Medicines (English Ed.) 2024;22(1):47-61
Artemisia argyi (A. argyi), a plant with a longstanding history as a raw material for traditional medicine and functional diets in Asia, has been used traditionally to bathe and soak feet for its disinfectant and itch-relieving properties. Despite its widespread use, scientific evidence validating the antifungal efficacy of A. argyi water extract (AAWE) against dermatophytes, particularly Trichophyton rubrum, Trichophyton mentagrophytes, and Microsporum gypseum, remains limited. This study aimed to substantiate the scientific basis of the folkloric use of A. argyi by evaluating the antifungal effects and the underlying molecular mechanisms of its active subfraction against dermatophytes. The results indicated that AAWE exhibited excellent antifungal effects against the three aforementioned dermatophyte species. The subfraction AAWE6, isolated using D101 macroporous resin, emerged as the most potent subfraction. The minimum inhibitory concentrations (MICs) of AAWE6 against T. rubrum, M. gypseum, and T. mentagrophytes were 312.5, 312.5, and 625 μg·mL-1, respectively. Transmission electron microscopy (TEM) results and assays of enzymes linked to cell wall integrity and cell membrane function indicated that AAWE6 could penetrate the external protective barrier of T. rubrum, creating breaches ("small holes"), and disrupt the internal mitochondrial structure ("granary"). Furthermore, transcriptome data, quantitative real-time PCR (RT-qPCR), and biochemical assays corroborated the severe disruption of mitochondrial function, evidenced by inhibited tricarboxylic acid (TCA) cycle and energy metabolism. Additionally, chemical characterization and molecular docking analyses identified flavonoids, primarily eupatilin (131.16 ± 4.52 mg·g-1) and jaceosidin (4.17 ± 0.18 mg·g-1), as the active components of AAWE6. In conclusion, the subfraction AAWE6 from A. argyi exerts antifungal effects against dermatophytes by disrupting mitochondrial morphology and function. This research validates the traditional use of A. argyi and provides scientific support for its anti-dermatophytic applications, as recognized in the Chinese patent (No. ZL202111161301.9).
Antifungal Agents/chemistry*
;
Arthrodermataceae
;
Artemisia/chemistry*
;
Molecular Docking Simulation
;
Mitochondria
;
Microbial Sensitivity Tests
6.Potassium dehydroandrographolide succinate regulates the MyD88/CDH13 signaling pathway to enhance vascular injury-induced pathological vascular remodeling.
Qiru GUO ; Jiali LI ; Zheng WANG ; Xiao WU ; Zhong JIN ; Song ZHU ; Hongfei LI ; Delai ZHANG ; Wangming HU ; Huan XU ; Lan YANG ; Liangqin SHI ; Yong WANG
Chinese Journal of Natural Medicines (English Ed.) 2024;22(1):62-74
Pathological vascular remodeling is a hallmark of various vascular diseases. Previous research has established the significance of andrographolide in maintaining gastric vascular homeostasis and its pivotal role in modulating endothelial barrier dysfunction, which leads to pathological vascular remodeling. Potassium dehydroandrographolide succinate (PDA), a derivative of andrographolide, has been clinically utilized in the treatment of inflammatory diseases precipitated by viral infections. This study investigates the potential of PDA in regulating pathological vascular remodeling. The effect of PDA on vascular remodeling was assessed through the complete ligation of the carotid artery in C57BL/6 mice. Experimental approaches, including rat aortic primary smooth muscle cell culture, flow cytometry, bromodeoxyuridine (BrdU) incorporation assay, Boyden chamber cell migration assay, spheroid sprouting assay, and Matrigel-based tube formation assay, were employed to evaluate the influence of PDA on the proliferation and motility of smooth muscle cells (SMCs). Molecular docking simulations and co-immunoprecipitation assays were conducted to examine protein interactions. The results revealed that PDA exacerbates vascular injury-induced pathological remodeling, as evidenced by enhanced neointima formation. PDA treatment significantly increased the proliferation and migration of SMCs. Further mechanistic studies disclosed that PDA upregulated myeloid differentiation factor 88 (MyD88) expression in SMCs and interacted with T-cadherin (CDH13). This interaction augmented proliferation, migration, and extracellular matrix deposition, culminating in pathological vascular remodeling. Our findings underscore the critical role of PDA in the regulation of pathological vascular remodeling, mediated through the MyD88/CDH13 signaling pathway.
Mice
;
Rats
;
Animals
;
Myeloid Differentiation Factor 88/metabolism*
;
Vascular Remodeling
;
Cell Proliferation
;
Vascular System Injuries/pathology*
;
Carotid Artery Injuries/pathology*
;
Molecular Docking Simulation
;
Muscle, Smooth, Vascular
;
Cell Movement
;
Mice, Inbred C57BL
;
Signal Transduction
;
Succinates/pharmacology*
;
Potassium/pharmacology*
;
Cells, Cultured
;
Diterpenes
;
Cadherins
8.IL-6 enhances the phagocytic function of mouse alveolar macrophages by activating the JAK2/STAT3 signaling pathway.
Mengqing HUA ; Peiyu GAO ; Fang FANG ; Haoyu SU ; Chuanwang SONG
Chinese Journal of Cellular and Molecular Immunology 2024;40(1):13-18
Objective To investigate the effect of interleukin-6 (IL-6) on the phagocytosis of MH-S alveolar macrophages and its related mechanisms. Methods A mouse acute lung injury (ALI) model was constructed by instilling lipopolysaccharide (LPS) into the airway. ELISA was used to detect the content of IL-6 in bronchoalveolar lavage fluid (BALF). In vitro cultured MH-S cells, in the presence or absence of signal transducer and activator 3 of transcription(STAT3) inhibitor Stattic (5 μmol/L), IL-6 (10 ng/mL~500 ng/mL) was added to stimulate for 6 hours, and then incubated with fluorescent microspheres for 2 hours. The phagocytosis of MH-S cells was detected by flow cytometry. Western blot analysis was used to detect the expression levels of phosphorylated Janus kinase 2 (p-JAK2), phosphorylated STAT3 (p-STAT3), actin-related protein 2 (Arp2) and filamentous actin (F-actin). Results The content of IL-6 in BALF was significantly increased after the mice were injected with LPS through the airway. With the increase of IL-6 stimulation concentration, the phagocytic function of MH-S cells was enhanced, and the expression levels of Arp2 and F-actin proteins in MH-S cells were increased. The expression levels of p-JAK2 and p-STAT3 proteins increased in MH-S cells stimulated with IL-6(100 ng/mL). After blocking STAT3 signaling, the effect of IL-6 in promoting phagocytosis of MH-S cells disappeared completely, and the increased expression of Arp2 and F-actin proteins in MH-S cells induced by IL-6 was also inhibited. Conclusion IL-6 promotes the expression of Arp2 and F-actin proteins by activating the JAK2/STAT3 signaling pathway, thereby enhancing the phagocytic function of MH-S cells.
Animals
;
Mice
;
Actins
;
Disease Models, Animal
;
Interleukin-6
;
Janus Kinase 2
;
Lipopolysaccharides
;
Macrophages, Alveolar
;
Signal Transduction
9.Inflammatory and Immunomodulatory Effects of Tripterygium wilfordii Multiglycoside in Mouse Models of Psoriasis Keratinocytes.
Shuo ZHANG ; Hong-Jin LI ; Chun-Mei YANG ; Liu LIU ; Xiao-Ying SUN ; Jiao WANG ; Si-Ting CHEN ; Yi LU ; Man-Qi HU ; Ge YAN ; Ya-Qiong ZHOU ; Xiao MIAO ; Xin LI ; Bin LI
Chinese journal of integrative medicine 2024;30(3):222-229
OBJECTIVE:
To determine the role of Tripterygium wilfordii multiglycoside (TGW) in the treatment of psoriatic dermatitis from a cellular immunological perspective.
METHODS:
Mouse models of psoriatic dermatitis were established by imiquimod (IMQ). Twelve male BALB/c mice were assigned to IMQ or IMQ+TGW groups according to a random number table. Histopathological changes in vivo were assessed by hematoxylin and eosin staining. Ratios of immune cells and cytokines in mice, as well as PAM212 cell proliferation in vitro were assessed by flow cytometry. Pro-inflammatory cytokine expression was determined using reverse transcription quantitative polymerase chain reaction.
RESULTS:
TGW significantly ameliorated the severity of IMQ-induced psoriasis-like mouse skin lesions and restrained the activation of CD45+ cells, neutrophils and T lymphocytes (all P<0.01). Moreover, TGW significantly attenuated keratinocytes (KCs) proliferation and downregulated the mRNA levels of inflammatory cytokines including interleukin (IL)-17A, IL-23, tumor necrosis factor α, and chemokine (C-X-C motif) ligand 1 (P<0.01 or P<0.05). Furthermore, it reduced the number of γ δ T17 cells in skin lesion of mice and draining lymph nodes (P<0.01).
CONCLUSIONS
TGW improved psoriasis-like inflammation by inhibiting KCs proliferation, as well as the associated immune cells and cytokine expression. It inhibited IL-17 secretion from γ δ T cells, which improved the immune-inflammatory microenvironment of psoriasis.
Male
;
Animals
;
Mice
;
Tripterygium
;
Psoriasis/drug therapy*
;
Keratinocytes
;
Skin Diseases/metabolism*
;
Cytokines/metabolism*
;
Imiquimod/metabolism*
;
Dermatitis/pathology*
;
Disease Models, Animal
;
Mice, Inbred BALB C
;
Skin/metabolism*
10.Monotropein Induced Apoptosis and Suppressed Cell Cycle Progression in Colorectal Cancer Cells.
Quan GAO ; Lin LI ; Qi-Man ZHANG ; Qin-Song SHENG ; Ji-Liang ZHANG ; Li-Jun JIN ; Rui-Yan SHANG
Chinese journal of integrative medicine 2024;30(1):25-33
OBJECTIVE:
To determine whether monotropein has an anticancer effect and explore its potential mechanisms against colorectal cancer (CRC) through network pharmacology and molecular docking combined with experimental verification.
METHODS:
Network pharmacology and molecular docking were used to predict potential targets of monotropein against CRC. Cell counting kit assay, plate monoclonal assay and microscopic observation were used to investigate the antiproliferative effects of monotropein on CRC cells HCT116, HT29 and LoVo. Flow cytometry and scratch assay were used to analyze apoptosis and cell cycle, as well as cell migration, respectively in HCT116, HT29, and LoVo cells. Western blotting was used to detect the expression of proteins related to apoptosis, cell cycle, and cell migration, and the expression of proteins key to the Akt pathway.
RESULTS:
The Gene Ontology and Reactome enrichment analyses indicated that the anticancer potential of monotropein against CRC might be involved in multiple cancer-related signaling pathways. Among these pathways, RAC-beta serine/threonine-protein kinase (Akt1, Akt2), cyclin-dependent kinase 6 (CDK6), matrix metalloproteinase-9 (MMP9), epidermal growth factor receptor (EGFR), cell division control protein 42 homolog (CDC42) were shown as the potential anticancer targets of monotropein against CRC. Molecular docking suggested that monotropein may interact with the 6 targets (Akt1, Akt2, CDK6, MMP9, EGFR, CDC42). Subsequently, cell activity of HCT116, HT29 and LoVo cell lines were significantly suppressed by monotropein (P<0.05). Furthermore, our research revealed that monotropein induced cell apoptosis by inhibiting Bcl-2 and increasing Bax, induced G1-S cycle arrest in colorectal cancer by decreasing the expressions of CyclinD1, CDK4 and CDK6, inhibited cell migration by suppressing the expressions of CDC42 and MMP9 (P<0.05), and might play an anticancer role through Akt signaling pathway.
CONCLUSION
Monotropein exerts its antitumor effects primarily by arresting the cell cycle, causing cell apoptosis, and inhibiting cell migration. This indicates a high potential for developing novel medication for treating CRC.
Humans
;
Proto-Oncogene Proteins c-akt/metabolism*
;
Cell Proliferation
;
Matrix Metalloproteinase 9
;
Molecular Docking Simulation
;
Cell Cycle
;
ErbB Receptors
;
Apoptosis
;
Colorectal Neoplasms/pathology*
;
Cell Line, Tumor


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