MICROVASCULAR RESEARCH
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2025
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IF 2.7
Xiao Xu,Xiaohu Ge,Hongbo Ci,Maitiseyiti Abulaihaiti,JianPing Yang,YangYang Li,Feng Zhu
Background Thromboangiitis obliterans (TAO, Buerger's disease) is a chronic inflammatory disorder that affects small and medium-sized vessels in the limbs. Although the pathogenesis of TAO remains incompletely understood, elevated levels of plasminogen activator inhibitor-1 (PAI-1) have been associated with cardiovascular diseases. This study investigates the mechanism by which PAI-1 activates the NF-κB/NLRP3 inflammatory pathway in vascular endothelial cells through hypoxia-inducible factor-1α (HIF-1α), contributing to the progression of TAO. Methods Proteomic analysis was performed on plasma samples from 5 TAO patients and 5 healthy controls to identify differentially expressed proteins (DEPs). In vitro, human umbilical vein endothelial cells (HUVECs) were subjected to 1 % hypoxia to mimic TAO conditions. Interventions included PAI-1 knockdown using lentiviral vectors and treatment with the HIF-1α agonist dimethyloxalylglycine (DMOG). Cell viability was assessed using the CCK-8 assay, apoptosis was measured by flow cytometry, and inflammatory factor levels were detected by enzyme-linked immunosorbent assay (ELISA). Protein expression was analyzed by Western blotting. In vivo, a TAO rat model was established by sodium laurate injection. The severity of limb ischemia was evaluated using gross lesion grading and infrared thermography, while pathological changes were assessed by hematoxylin and eosin (H&E) staining and Masson's trichrome staining. Results Elevated levels of PAI-1, HIF-1α, and key molecules in the NLRP3/NF-κB pathway were observed in both TAO rats and hypoxic HUVECs. PAI-1 knockdown significantly improved limb ischemia and suppressed the NLRP3/NF-κB pathway in TAO rats. Compared with the DMOG intervention group, combined treatment with PAI-1 knockdown and DMOG effectively alleviated ischemic symptoms, increased body weight, and reduced the expression of HIF-1α and inflammatory pathway molecules in TAO rats. Conclusion PAI-1 promotes the progression of TAO by activating the NF-κB pathway via HIF-1α. Targeted inhibition of PAI-1 represents a potential therapeutic strategy for TAO.
研究领域:
心血管医学
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分子生物学
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炎症研究
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血管生物学
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PubMed
高影响因子
JOURNAL OF ETHNOPHARMACOLOGY
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2026
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IF 6.8
Hongxuan Yang,Yun Liang,Yue’e Chen,Lin Liu,Yingfang Wang,Qiting Dou,Jinmei Gong,Zijing Liao,Junqiu Dong,Xuguang Hu
Ethnopharmacological relevance Lonicera japonica Thunb (honeysuckle), a traditional Chinese medicine, has been historically used to clear heat, detoxify, and dispel wind-heat. Modern research has identified various bioactive constituents from honeysuckle, supporting its potential in managing inflammatory and metabolic disorders. However, the anti-hyperuricemic activity and mechanism of its peptide components remain unexplored. Aim of the study: This study aimed to investigate the anti-hyperuricemic effect of honeysuckle-derived peptides and the underlying mechanisms, with a focus on uric acid production, excretion, and gut microbiota modulation. Materials and methods Nine novel peptides were identified from honeysuckle by HPLC-MS/MS and screened through molecular docking against xanthine oxidase (XOD). In vitro XOD inhibition and antioxidant assays were performed. A hyperuricemic mouse model was induced by potassium oxonate and hypoxanthine. Mice were treated with honeysuckle peptides at low, medium, and high doses. Serum biomarkers, renal and ileal histopathology, protein and mRNA expression of PGC-1α/PPARγ/ABCG2 pathway components, and gut microbiota composition (16S rRNA sequencing) were analyzed. Results Molecular docking confirmed strong binding between the peptides and XOD. In vitro , honeysuckle peptides significantly inhibited XOD activity and exhibited potent antioxidant capacity. In vivo , peptide treatment effectively reduced serum uric acid, XOD, creatinine, and blood urea nitrogen levels, alleviated renal and intestinal tissue damage, and suppressed inflammatory cytokines. The treatment also significantly upregulated the renal PGC-1α/PPARγ/ABCG2 pathway at both protein and mRNA levels. Furthermore, the peptides restored gut microbial diversity and corrected the Firmicutes/Bacteroidota ratio. Conclusion Honeysuckle peptides ameliorate hyperuricemia through a dual mechanism: inhibiting uric acid production by suppressing XOD activity and promoting its renal excretion by activating the PGC-1α/PPARγ/ABCG2 pathway, coupled with restoring gut microbiota homeostasis. This study provides a pharmacological basis for the traditional use of honeysuckle and highlights its peptides as promising candidates for managing hyperuricemia.
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高影响因子
JOURNAL OF APPLIED TOXICOLOGY
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2021
·Vol. 41
·期 12
·2011-2020
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IF 3.446
Yuanyuan Zhang,Bingke Ma,Shuangshuang Hao,Jiaqi Wang,Ruichen Zhang,Muhammad Ishfaq,Chenxi Shi,Liang Yuan,Rui Li,Changwen Li,Fangping Liu
Drug-induced liver injury (DILI) is a serious and frequently occurring issue in drug development. The c-Jun N-terminal kinase (JNK) signaling pathway plays an important role in many diseases; hepatocyte nuclear factor-1α (HNF-1α) and glutathione S-transferase A1 (GSTA1) are important in regulating liver-specific genes expressions and affecting drug metabolism. Oltipraz is used to treat liver cirrhosis by improving liver function, and C2-ceramide is a pro-apoptotic lipid that regulates multiple signaling pathways. In this study, we investigated the function of the JNK signaling pathway with HNF-1α and GSTA1 in a cellular model of DILI and whether oltipraz and C2-ceramide exert effects via the JNK pathway. The results showed that inhibiting JNK could ameliorate APAP-induced hepatocyte injury, reduced oxidative stress, suppressed JNK and c-Jun activation, and hepatocyte apoptosis. Meanwhile, the mRNA and protein expressions of HNF-1α and GSTA1 were increased significantly compared to control conditions. The effect of oltipraz (8 μmol/L) was similar to a JNK inhibitor and significantly increased HNF-1α/GSTA1 expression, but oltipraz combined with JNK inhibitor did not show a synergistic effect. Although C2-ceramide (8 μmol/L) aggravated hepatocyte injury and apoptosis, exacerbated oxidative stress, increased phosphorylation of JNK and c-Jun, and markedly decreased HNF-1α/GSTA1 expression, C2-ceramide combined with JNK inhibitor could partially alleviate these alterations. These results demonstrated that the JNK signaling pathway with HNF-1α/GSTA1 are involved in the process of DILI. Inhibiting JNK up-regulated HNF-1α and GSTA1 expressions which could attenuate hepatocyte injury. Oltipraz and C2-ceramide might affect the expression of HNF-1α/GSTA1 though JNK signaling.
研究领域:
药理学
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肝脏病学
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分子生物学
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PubMed
高影响因子
DISEASE MARKERS
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2022
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IF 3.464
Zhiwen Wang,Changfeng Wang,Jieping Fu,Ruen Liu,Xinhui Zhou
Purpose. Cinnamaldehyde (CA) is the main ingredient in cinnamon, and it has been proven to have an inhibitory effect on many different tumor types. However, it lacks effect on glioma. This paper explores the effect CA has on glioma cells U87 and U251 at the cellular and molecular levels. Methods. The relationship between Hif-1α and Sept9 was found by CGGA. Cell Viability Assay (CCK8) was made to detect the proliferation ability. The scratch experiment and the transwell experiment were applied to the migration and invasion ability. Annexin V-FITC/PI were used to detect the cell apoptosis. Western blotting was used to determine the specified protein level. Results. Cell proliferation assay results revealed CA to inhibit the proliferation of glioma cells in a dose-dependent manner. It promoted apoptosis for upregulating the expression of Bax and downregulating the expression of Bcl-2. Wound Healing Assay and transwell test found CA to have anti-invasion ability and that it upregulated the expression of E-cadherin and downregulated the expressions of MMP-2 and MMP-9. The molecular mechanism was studied from a tumor microenvironment (TME) perspective. Pi3k inhibitor (LY294002) was used for interfering with cells, and the results found CA to demonstrate a similar effect. Hif-1α and Sept9 expressions were inhibited, and Akt and p-Akt were also inhibited. By using CoCl2 to make hypoxia, CA was discovered to inhibit the high expression of Hif-1α and Sept9, demonstrating a correlation with the Pi3k/Akt pathway. It is suggested that the mechanism of Sept9 under hypoxia regulation can be realized through the Pi3k/Akt pathway. Conclusions. This study proves for the first time that CA is an effective drug for inhibiting the proliferation of glioma through Sept9 and reveals Sept9 to be related to the Pi3k/Akt pathway in terms of tumor microenvironment, providing a molecular basis for the further study of CA in glioma treatment.
研究领域:
肿瘤学
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分子生物学
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药理学
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PubMed
高影响因子
JOURNAL OF IMMUNOLOGY
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2026
·Vol. 215
·期 4
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IF 4
Xu Shujuan,Jiang Yixiang,Wang Shengtao,Chen Beili,Lin Wenyuan,Jiang Fang,Wu Xianyi,Tang Rongfang,Nie Yuwei,Chen Tongtong,Wang Xiaotao
Myelodysplastic syndrome (MDS) is a heterogeneous group of myeloid neoplasms characterized by treatment difficulties and a propensity to progress to acute myeloid leukemia. Impaired natural killer (NK) cell surveillance is a hallmark of MDS, yet the underlying molecular mechanisms remain poorly understood. This study aims to elucidate the mechanism by which HIF-1α regulates NK cell differentiation disorders and its impact on NK cell cytotoxicity in MDS. Flow cytometry was employed to compare HIF-1α expression and NK cell differentiation between wild-type and NUP98/HOXD13 (NHD13) mice. Our results demonstrated a significant increase in HIF-1α expression in the bone marrow and peripheral blood of MDS mice, accompanied by a notable decrease in immature NK cell subsets and activating receptors (NKG2D, NKp44, and DNAM-1). Overexpression of HIF-1α in human NK cells or pharmacological stabilization with CoCl2 inhibits the differentiation into mature NK cells, suppresses the expression of degranulation molecules such as Granzyme B, and impairs NK cell cytotoxicity. Western blot analysis indicated that HIF-1α regulates NK cell differentiation and function via the JAK1/STAT5/SOCS2 signaling pathway. Collectively, these findings suggest that the hypoxic microenvironment in MDS enhances HIF-1α expression, which subsequently impairs NK cell maturation and inhibits their cytotoxicity. Targeting HIF-1α may delay MDS progression by enhancing NK cell function via the JAK1/STAT5/SOCS2 signaling pathway.
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高影响因子
International Journal of Ophthalmology
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2019
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IF 1.189
Li-Fei Wang,Zhong-Yang Yan,Ya-Lin Li,Yan-Hui Wang,Sheng-Juan Zhang,Xin Jia,Lu Lu,Yan-Xia Shang,Xin Wang,Yun-Huan Li,Shan-Yu Li
AIM To explore the effect of Obtusifolin on retinal pigment epithelial cell growth under hypoxia. METHODS In vitro chemical hypoxia model of ARPE-19 cells was established using cobalt chloride (CoCl 2 ). Cell viability was tested by cell counting kit-8 (CCK-8) assay. Western blot and real-time quantitative polymerase chain reaction were applied to detect proteins and mRNAs respectively. Flow cytometry was used to examine the cell cycle. Secretion of vascular endothelial growth factor (VEGF) was tested by using enzyme linked immunosorbent assay (ELISA). RESULTS Under the chemical hypoxia model established by CoCl 2 , hypoxia inducible factor-1α (HIF-1α) mRNA and protein levels was up-regulated. Cell viability was increased and the proportion of S phase was higher. Obtusifolin could reduce cell viability under hypoxic conditions and arrest cells in G1 phase. Obtusifolin reduced the expression of Cyclin D1 and proliferating cell nuclear antigen (PCNA) in the hypoxic environment and increased the expression of p53 and p21. The levels of VEGF, VEGFR2 and eNOS proteins and mRNA were significantly increased under hypoxia while Obtusifolin inhibited the increasing. CONCLUSION Obtusifolin can inhibit cell growth under hypoxic conditions and down-regulate HIF-1/VEGF/eNOS secretions in ARPE-19 cells.
研究领域:
眼科学
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细胞生物学
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分子生物学
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PubMed
高影响因子
RESEARCH IN VETERINARY SCIENCE
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2020
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IF 1.892
Jing Dong,Yuelei Chen,Wenhui Yang,Xi Zhang,Lin Li
Breast cancer is a high incidence disease in humans. Artemisinin is an important extract that is widely used as an antimalarial drug which also serve as effective treatments for cancer. 32 nude mice were injected with 0.2 ml of MDA-MB-231 cell suspension of 2 × 10 7 cells/ml respectively. The nude mice models were randomly divided into four groups of 8 in each group. Each group was given daily gavage, high dose group: 200 mg/kg/0.1 ml, middle dose group 100 mg/kg/0.1 ml, low dose group 50 mg/kg/0.1 ml, control group: 0.1 ml vegetable oil was fed continuously for 21 days. ELISA was used to detect serum vascular endothelial growth the content of factor VEGF and hypoxia-inducible factor HIF-1α were detected. The expression of Notch pathway-related factors in tumor tissue was detected by fluorescence quantitative assay. ELISA results showed that the serum VEGF decreased significantly in the high dose group compared with the control group ( p < .01), while the other dose groups did not have significant ( p > .05). The serum HIF-1α in the high dose group compared with the control group, the decrease in HIF-1α was significant ( p < .05), and the other groups were not significant ( p > .05). The result of fluorescence quantitative section showed that artemisinin could down-regulate the expression of notch signaling related factors notch1, Dll4 and Jagged1, and 200 mg/kg dose group had the most significant effect. It may inhibit the development of tumors by reducing serum angiogenesis-related factors VEGF, HIF-1ɑ and inhibiting the activity of notch1 signaling pathway related factors.
研究领域:
肿瘤学
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药理学
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分子生物学
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PubMed
高影响因子
Genes & Diseases
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2025
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IF 9.4
Yan Fu,Xu Huang,Siyuan Wang,Qitong Guo,Yuhao Wu,Xiangqin Zheng,Junke Wang,Shengde Wu,Lianju Shen,Guanghui Wei
Chlorpyrifos (CPF), a widely used organophosphate pesticide, accumulates in the environment and affects human health. Its neurotoxicity has been extensively studied, and recent research has revealed that it can also lead to abnormal spermatogenesis. However, the factors and molecular mechanisms involved remain unclear. In this study, male Sprague-Dawley rats were gavaged with different concentrations of CPF for 30 days, resulting in a disrupted blood-testis barrier (BTB) and abnormal spermatogenesis. RNA sequencing analysis of Sertoli cells, the primary components of the BTB and key targets of environmental toxins, revealed that ferroptosis-related genes were predominantly among the differentially expressed genes. The expression of ferroptosis-related markers was up-regulated, malondialdehyde and Fe 2+ levels were elevated, and glutathione levels were reduced in CPF-exposed testicular tissue and its metabolite TCP-exposed Sertoli cells, confirming that CPF exposure triggered ferroptosis in testes and Sertoli cells. Moreover, treatment with ferrostatin-1, a ferroptosis inhibitor, restored Sertoli cell junctional function. Given the important roles of clockophagy and the HIF-1α pathway in ferroptosis, we investigated the activity of clockophagy in testes and Sertoli cells. Unexpectedly, clockophagy activity was found to be enhanced by the significantly reduced expression levels of ARNTL and HIF-1α following CPF and TCP exposure. Notably, Arntl knockdown impaired Sertoli cell junctional function. Collectively, these findings strongly indicate that CPF induces ferroptosis in Sertoli cells through activating clockophagy, resulting in the decreased expression of HIF-1α and BTB-associated proteins; this ultimately leads to the disruption of BTB integrity and spermatogenesis dysfunction.
研究领域:
毒理学
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生殖生物学
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分子生物学
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PubMed
高影响因子
International Journal of Nanomedicine
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2026
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IF 6.5
Aiqiu Wei,Ziyi Zhong,Yiming Zhang,Jincheng He,Haihe Pang,Xinhua Xia,Xiaoqing Zhang
Purpose: Cantharidin (CTD) is a natural anticancer compound whose clinical application is limited by poor water solubility, low bioavailability, and significant toxicity. To develop a more effective and safer therapeutic strategy, we proposed a synergistic combination therapy by integrating CTD with staurosporine (STS), a protein kinase inhibitor that shares complementary mechanisms of action targeting the mTOR/HIF-1α/VEGF pathway. We further developed an aptamer-guided liposomal nanosystem for the co-delivery of CTD and STS (Apt/CTD-STS/NL), aiming to enhance tumor targeting, improve bioavailability, and reduce the systemic toxicity of both drugs.Methods: We constructed aptamer-guided co-delivery nanoliposomes encapsulating CTD and STS (Apt/CTD-STS/NL). The targeted delivery efficiency, synergistic antitumor efficacy, and biocompatibility of this nanosystem were comprehensively evaluated through both in vitro and in vivo experiments.Results: Apt/CTD-STS/NL achieved approximately 1.3-fold higher cellular uptake in HCC cells compared to non-targeted liposomes in vitro. In vivo, it demonstrated superior tumor accumulation. In a murine HCC model, Apt/CTD-STS/NL exhibited the strongest tumor growth inhibition (79.50 ± 4.39%), significantly outperforming free CTD, STS, or single-drug loaded liposomes. Mechanistic studies revealed that the core synergy between CTD and STS enabled simultaneous inhibition of the key oncoproteins mTOR, HIF-1α, and VEGF, thereby disrupting tumor proliferation, survival, and angiogenesis.Conclusion: This study demonstrates a novel targeted nanoplatform that combines an active ingredient from traditional Chinese medicine with a modern kinase inhibitor. This strategy achieves a synergistic anti-HCC effect through multi-pathway inhibition and offers a promising approach for cancer therapy with enhanced efficacy and reduced toxicity.
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高影响因子
PHYTOMEDICINE
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2025
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IF 8.3
Yongyan Chen,Xu Han,Yuxuan Hao,Xu Wang,Fupeng Wu,Sheng Tan,Huijing Ye,Yang Hong,Xiaoyan Shen
Background Vascular calcification is a major cause of death in chronic kidney disease (CKD), with osteoblastic transdifferentiation of vascular smooth muscle cells (VSMCs) considered to be the crucial pathologic process. However, there remains a significant deficiency in effective prevention and treatment strategies. Purpose In an in vitro calcification screening model, we observed an inhibitory activity of Emodin on osteoblastic transdifferentiation of VSMCs. In the present study, we therefore aimed to evaluate its efficacy in CKD-induced medial vascular calcification in vitro and in vivo, and to further explore the underlying mechanisms. Study design A7R5 and MOVAS cells were treated with sodium phosphate to induce osteogenic transdifferentiation as in vitro models, while mice were fed with adenine and a high-phosphorus diet, and additionally received an intraperitoneal injection of 10,000 IU Vitamin D3 to induce chronic kidney disease (CKD) as an in vivo model. Vitamin K2 served as a positive control. Methods Alizarin Red S staining and VON-KOSSA staining were used to evaluate the effects of Emodin on osteogenic transdifferentiation. Western blotting, RT-qPCR and Von-Kossa staining were used to detect the effects of Emodin on aortic calcification in CKD mice in vivo. Chemical biology techniques including ITC, fluorescence titration, dual fluorescein reporter genes, CETSA, and DARTS, were used to detect the binding activity of Emodin to ERα and SYVN1. Immunoprecipitation, immunostaining, etc. were used to explore the mechanisms, and small molecule inhibitors and small RNA interference were used to verify the target of Emodin. Results Emodin could effectively inhibit the osteogenic transdifferentiation of A7R5 and MOVAS cells in vitro, and alleviate aortic calcification in CKD mice in vivo. Mechanism study revealed that Emodin could act as a molecular glue that binds directly to ERα and SYVN1 and enhances their interaction, thereby accelerating the ubiquitination degradation process of ERα. The decrease in ERα diminished the inhibition of ERα on the deacetylation of HIF-1α by SIRT6, thereby inhibiting VSMC osteogenic transdifferentiation and relieving the vascular cells calcification. Conclusion Our study demonstrates that ERα has a non-genomic effect to inhibit the deacetylation of HIF-1α by SIRT6, which can be abrogated by Emodin through SYVN1-mediated ERα degradation. These results provide evidences for Emodin to serve as a candidate drug for controlling clinical vascular calcification in CKD.
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高影响因子
Journal of Environmental Sciences
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2026
·
IF 6.5
Caiyu Lian,Mingcheng Sun,Yue Li,Lin Wang
Cadmium (Cd) exposure triggers ferroptosis in renal tubular cells. • TFRC upregulation drives Cd‑induced ferroptosis by promoting iron influx. • HIF‑1α directly binds the TFRC promoter to transactivate its expression. • mPTP‑mediated calcium efflux activates CaMKII/HIF‑1α/TFRC axis. Cadmium (Cd) is a ubiquitous environmental pollutant and well-established nephrotoxicant primarily targeting renal proximal tubular cells. Ferroptosis, an iron‑dependent form of regulated cell death driven by lipid peroxidation, has recently emerged as a key mechanism in Cd‑induced kidney injury. Despite the central role of mitochondria in ferroptosis, the precise organellar events linking Cd exposure to ferroptotic execution remain obscure. Using Sprague‑Dawley rats and renal proximal tubular cells, we found that Cd exposure instigated ferroptosis, evidenced by iron overload, altered ferroptosis markers, lipid peroxidation, and typical mitochondrial morphology under transmission electron microscopy. Pharmacological inhibition of ferroptosis significantly attenuated Cd‑induced cellular damage, identifying ferroptosis as a critical driver. Mechanistically, Cd triggered opening of the mitochondrial permeability transition pore (mPTP), leading to mitochondrial calcium efflux and activation of calcium/calmodulin‑dependent protein kinase II (CaMKII). Activated CaMKII in turn increased hypoxia-inducible factor-1α (HIF-1α) transcription and promoted its nuclear accumulation. Notably, upregulated HIF‑1α directly bound to the promoter of transferrin receptor (TFRC) to stimulate expression of this key iron transport mediator, as confirmed by chromatin immunoprecipitation assay. Moreover, genetic knockdown of TFRC markedly attenuated Cd‑triggered ferroptosis and consequent cytotoxicity, establishing TFRC as a critical executioner of Cd‑evoked renal injury. Taken together, these findings delineate a novel signaling axis from mPTP‑mediated calcium efflux to HIF‑1α‑dependent TFRC transactivation that drives ferroptosis in Cd‑induced nephrotoxicity, offering a mechanistic basis for understanding and mitigating the renal health risks posed by environmental Cd exposure. Download: Download high-res image (405KB) Download: Download full-size image
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高影响因子
MATERIALS & DESIGN
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2026
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IF 8.2
Yue Peng,Cuiman Tang,Mingcong Niu,Tianyi Xu,QingYu Meng,Xinran Li,Rongheng Ma,Huimin Yu
A traditional medicine-inspired strategy provides a logical framework for constructing carrier-free hybrids. • Precise structural modifications successfully circumvent the inherent bioaccessibility limitations of natural products. • The covalent integration of diverse functional modules enables synergistic therapeutic efficacy against arthritis. • The therapeutic action is closely associated with the modulation of protein kinase B and hypoxia-inducible factor signaling. Curcumin (Cur) possesses potent anti-inflammatory activity but faces clinical challenges due to poor aqueous dispersibility, insufficient membrane affinity, and low bioavailability. Borneol (Bor), a classic “envoy” component in Traditional Chinese Medicine (TCM), exhibits prominent membrane-penetrating properties. Inspired by the “monarch-envoy” compatibility theory, we rationally designed carrier-free hybrids by covalently conjugating Cur (“monarch”) with Bor (“envoy”). Systematic characterization confirmed the successful synthesis and controllable optimization of key properties, including enhanced dispersibility, improved cellular uptake, and favorable biocompatibility. Using rheumatoid arthritis (RA) as a disease model, we identified SCBMS as the optimal formulation owing to its superior dispersibility and uptake, which directly translated into the most potent anti-RA efficacy. The hybrids exerted synergistic multifunctional effects—including robust anti-inflammatory and antioxidant activities—effectively reducing the arthritis index and ameliorating synovial hyperplasia and joint destruction in vivo . Mechanistically, our results indicate a close correlation between the therapeutic effects and the downregulation of the AKT/mTOR/HIF-1α signaling pathway, supporting the involvement of this pathway in the observed anti-RA activity. This study provides a generalizable framework for developing functional hybrids guided by TCM principles and validates their translational potential. Download: Download high-res image (152KB) Download: Download full-size image
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