PHYTOMEDICINE
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2025
·
IF 8.3
Xu Dong,Jianyin Miao,Ling Wu,Ziyu Kong,Zenghui Liu,Diyi Jia,Qingqing Zhai,Dan Zhang,Yan Xu
Background Diabetes patients face an elevated wound infection susceptibility and delayed healing processes. Currently, no existing literature has reported on the effect and mechanism of theaflavin-3, 3’-digallate nanoparticles (TFDG NPS) and TFDG NPS@hydrogels on diabetic wounds. Purpose Given that the treatment options for diabetic wound are limited, the aim of this study is to develop an innovative therapeutic approach to address diabetic wounds. Methods The TFDG NPS were prepared using ionic cross-linking, and they were then characterized. The biocompatibility of the TFDG NPS and TFDG NPS@hydrogel was assessed using a Cell Counting Kit-8 (CCK-8) assay and live/dead staining on HK-2 cells in vitro . Diabetic ICR mice were induced through intraperitoneal injection of streptozocin (STZ). They were then subjected to the creation of two full-thickness wounds on their dorsal areas. The effect and mechanism of the TFDG NPS and TFDG NPS@hydrogel on wound healing in diabetic mice were evaluated using a histological analysis, a western blot analysis, and molecular docking. Results The optimal TFDG NPS proportion was found to be TFDG:Gelatin (Gel):Chitosan (CS) = 2:1:1. Images photographed using a transmission electron microscope (TEM) revealed that the TFDG NPS appeared spherical, with a diameter of approximately 140 ± 20 nm. The favorable bio-compatibility of the TFDG NPS and TFDG NPS@hydrogel was confirmed using cell experiments. Animal studies demonstrated that both the TFDG NPS and TFDG NPS@hydrogel enhanced collagen fiber accumulation and new blood vessel density, reduced F4/80 infiltration, and upregulated the expression levels of TGF-β1, SMAD3, Collagen I, and α-SMA. The potential mechanism may involve activation of the TGF-β1/SMAD3 pathway, stimulating the secretion of Collagen I and α-SMA, and thereby facilitating wound closure in diabetic mice. The molecular docking results confirmed a high affinity between TFDG and TGF-β1/SMAD3. Conclusion TFDG NPS and TFDG NPS@hydrogel promoted wound closure in diabetic mice through the TFG-β1/SMAD3 pathway, thus exhibiting promising therapeutic potential for diabetic wound treatment.
研究领域:
医学
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生物材料学
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分子生物学
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DOI
PubMed
高影响因子
CHEMICAL & PHARMACEUTICAL BULLETIN
·
2024
·Vol. 72
·期 7
·669-675
·
IF 1.5
Xiongwei Deng,Qiang Li,Haitao Yuan,Hejun Hu,Shaoyong Fan
Tendon injury is a prevalent orthopedic disease that currently lacks effective treatment. Galangin (GLN) is a vital flavonoid found abundantly in galangal and is known for its natural activity. This study aimed to investigate the GLN-mediated molecular mechanism of tendon-derived stem cells (TDSCs) in tendon repair. The TDSCs were characterized using alkaline phosphatase staining, alizarin red S staining, oil red O staining, and flow cytometry. The effect of GLN treatment on collagen deposition was evaluated using Sirius red staining and quantitative (q)PCR, while a Western bot was used to assess protein levels and analyze pathways. Results showed that GLN treatment not only increased the collagen deposition but also elevated the mRNA expression and protein levels of multiple tendon markers like collagen type I alpha 1 (COL1A1), decorin (DCN) and tenomodulin (TNMD) in TDSCs. Moreover, GLN was also found to upregulate the protein levels of transforming growth factor β1 (TGF-β1) and p-Smad3 to activate the TGF-β1/Smad3 signaling pathway, while GLN mediated collagen deposition in TDSCs was reversed by LY3200882, a TGF-β receptor inhibitor. The study concluded that GLN-mediated TDSCs enhanced tendon repair by activating the TGF-β1/Smad3 signaling pathway, suggesting a novel therapeutic option in treating tendon repair.
研究领域:
骨科
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干细胞研究
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分子生物学
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药理学
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DOI
PubMed
高影响因子
MOLECULES
·
2018
·Vol. 23
·期 1
·215
·
IF 3.098
Xinyan Peng,Chongshan Dai,Quanwen Liu,Junke Li,Jingru Qiu
This study aimed to investigate the protective effect of curcumin against carbon tetrachloride (CCl4)-induced acute liver injury in a mouse model, and to explain the underlying mechanism. Curcumin at doses of 50, 100 and 200 mg/kg/day were administered orally once daily for seven days prior to CCl4exposure. At 24 h, curcumin-attenuated CCl4induced elevated serum transaminase activities and histopathological damage in the mouse’s liver. Curcumin pre-treatment at 50, 100 and 200 mg/kg significantly ameliorated CCl4-induced oxidative stress, characterized by decreased malondialdehyde (MDA) formations, and increased superoxide dismutase (SOD), catalase (CAT) activities and glutathione (GSH) content, followed by a decrease in caspase-9 and -3 activities. Curcumin pre-treatment significantly decreased CCl4-induced inflammation. Furthermore, curcumin pre-treatment significantly down-regulated the expression of TGF-β1 and Smad3 mRNAs (bothp< 0.01), and up-regulated the expression of nuclear-factor erythroid 2-related factor 2 (Nrf2) and HO-1 mRNA (bothp< 0.01) in the liver. Inhibition of HO-1 attenuated the protective effect of curcumin on CCl4-induced acute liver injury. Given these outcomes, curcumin could protect against CCl4-induced acute liver injury by inhibiting oxidative stress and inflammation, which may partly involve the activation of Nrf2/HO-1 and inhibition of TGF-β1/Smad3 pathways.Keywords:curcumin;acute liver injury;Nrf2/HO-1 pathway;oxidative stress;TGF-β1/Smad3 pathway
研究领域:
药理学
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肝病学
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分子生物学
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DOI
PubMed
高影响因子
Nature Aging
·
2025
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IF 19.4
Liu Liu,Wang Qianyue,Chen Meng,Zhou Haifeng,Li Xu,Yuan Ziqi,Hu Yong,Wang Chaoqun,Zhang Xiaohui,Hu Sheng,Wu Xiaoting,Li Meixin,Li Juanjuan,Chen Aijun,Yan Wei
Lung aging is a multifactorial series of molecular alterations that leads to gradual deterioration of lung function and increased vulnerability to cancer. Tumor communicates with host organs partially through extracellular vesicles; however, the mechanistic drivers and consequences of lung aging in the context of cancer remain unclear. Here we identify cancer cell-secreted dimethylarginine dimethylaminohydrolase-1 (DDAH1) protein induces citrulline accumulation and promotes lung fibrosis and aging. Mechanistically, our single-cell sequencing and genetic knockout mice evidence that citrulline availability elevation inhibits peptidyl arginine deiminase 4-mediated transforming growth factor-β1 (TGF-β1) citrullination, thereby inducing the TGF-β1/Smad3 signaling pathway in lung fibroblasts. Notably, vacuolar protein sorting assists the packaging of DDAH1 into the late endosomes. The administration of DDAH1 inhibitor reduces fibrosis and alleviates lung aging. Conclusively, our findings reveal tumor-derived DDAH1 protein contributes to citrulline accumulation to promote lung aging, shedding light on the treatment and diagnosis of tumors by inhibiting senescent lung fibroblasts.
研究领域:
肿瘤学
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呼吸系统生物学
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分子生物学
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细胞衰老
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信号转导
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转化医学
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肿瘤微环境
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PubMed
高影响因子
JOURNAL OF CELLULAR PHYSIOLOGY
·
2018
·Vol. 234
·期 7
·11440-11450
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IF 3.923
Zheng-Yu Liu,Hong-Wei Pan,Yan Cao,Jiao Zheng,Yu Zhang,Yi Tang,Jin He,Yong-Jun Hu,Chang-Lu Wang,Qiong-Chao Zou,Qing-Hua Fu,Le Zhang,Jian-Qiang Peng,Jing Ling,Ning Peng,Jing-Jing Rong,Zhao-Fen Zheng
microRNAs (miRs) are essential in the development of heart failure. The aim of this study is to investigate the effect of microRNA-330 (miR-330) on left ventricular remodeling via the TGF-β1/Smad3 signaling pathway by targeting the sex-determining region Y (SRY) in mice with myocardial ischemia–reperfusion injury (MIRI). Differentially expressed gene (DEG) in myocardial ischemia–reperfusion (IR) was screened out and the miR that targeted the DEG was also predicted and verified. A model of MIRI was established to detect the expression of miR-330, SRY, transforming growth factor-β (TGF-β1), and Sekelsky mothers against dpp3 (Smad3). To further investigate the role of miR-330 in MIRI with the involvement of SRY and TGF-β1/Smad3 signaling pathway, the modeled mice were treated with different mimic, inhibitor, or small interfering RNA (siRNA) to observe the changes of the related gene expression, as well as the myocardial infarction size and volume of myocardial collagen. SRY was screened out and verified as a target gene of miR-330. The MIRI mice showed enlarged myocardial infarction size, increased volume of myocardial collagen, increased expression of miR-330, TGF-β1 and Smad3, while decreased the expression of SRY. The MIRI mice treated with miR-330 inhibitor showed decreased myocardial infarction size, the volume of myocardial collagen, and expression of TGF-β1 and Smad3 but promoted expression of SRY. Our findings demonstrated that downregulated miR-330 could suppress left ventricular remodeling to inhibit the activation of the TGF-β1/Smad3 signaling pathway via negatively targeting of SRY in mice with MIRI. This can be a potential target in the strategy to attenuate patient suffering.
研究领域:
心脏病学
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分子生物学
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遗传学
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DOI
PubMed
高影响因子
Frontiers in Endocrinology
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2023
·
IF 5.2
Zhao Qingsong,Xu Jinmei,Han Xu,Zhang Zheqi,Qu Jiahui,Cheng Zhifeng
Background: Diabetic foot ulcer (DFU) represents a highly-prevalent complication of diabetes mellitus (DM). Herein, the current study sought to identify the role of growth differentiation factor 10 (GDF-10) in wound healing in DFU via regulation of the transforming growth factor-beta 1 (TGF-β1)/Smad3 pathway.Methods: DM- and DFU-related microarray datasets GSE29221 and GSE134431 were firstly retrieved, and weighted gene co-expression network analysis (WGCNA) was carried out to construct a co-expression network affecting wound healing in DFU, followed by differential analysis. A protein-protein interaction (PPI) network of the DFU-related genes was subsequently constructed, and the core genes and signaling pathways in DFU were screened with the Gene Ontology and Kyoto Encyclopedia of Genes and Genomes functional analyses. A DFU rat model was constructed for mechanism verification of the effect of GDF-10 on wound healing in DFU.Results: WGCNA screened five co-expression modules, and the brown module was most closely-related to DM. Clustering analysis screened 4417 candidate genes, of which 175 differential genes were associated with wound healing, further involved in TGF-β1/Smad3 signaling pathway regulation of wound healing in DFU. The PPI network analysis predicted that GDF-10 might regulate the TGF-β1/Smad3 signaling pathway to participate in DFU development. Results of animal experimentation showed that the wound healing rates of NFU, DFU, DFU + GDF and GDF + SIS3 groups on the 22nd day were (87.66 ± 6.80)%, (56.31 ± 7.29)%, (71.64 ± 9.43)% and (55.09 ± 7.13)%, respectively. Besides, the expression of TGF-β1 in NFU, DFU, DFU + GDF and GDF + SIS3 groups was 0.988 ± 0.086, 0.297 ± 0.036, 0.447 ± 0.044, and 0.240 ± 0.050, respectively, and that of Smad3 was 1.009 ± 0.137, 0.145 ± 0.017, 0.368 ± 0.048, and 0.200 ± 0.028, respectively. Specifically, GDF-10 exerted a significant diminishing effect on fasting blood glucose level, and promoted wound healing in DFU rats, in addition to up-regulation of VEGF, FGF, Ang-1, TGF-β1, Smad3 and enhancement of IL-1b, IL-6, TNF-a and MMP-9, thereby promoting fibroblast proliferation, collagen deposition and angiogenesis.Conclusions: Our findings highlight that GDF-10 may promote angiogenesis by activating TGF-β1/Smad3 signaling, thereby promoting wound healing in DFU rats.
研究领域:
糖尿病
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分子生物学
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药理学
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DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF CARDIOLOGY
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2024
·
IF 3.2
Zihan Wei,Ying Lu,Cheng Qian,Jing Li
Background Atrial fibrosis is associated with the pathogenesis of atrial fibrillation (AF). This study aims to discuss the function of circ_0079480 in atrial fibrosis and its underlying mechanism. Methods In vitro and in vivo models of atrial fibrosis were established by using angiotensin II (Ang II) to treat human atrial fibroblasts (HAFs) and C57/B6J mice. qRT-PCR and western blot were used to examine the mRNA and protein expression levels. CCK-8, EdU, cell strach, and transwell assays were performed to determine the proliferation and migration of HAFs. Dual-luciferase reporter and RIP/RNA pull-down assays were explored to identify the interaction of miR-338-3p and circ_0079480/THBS1. HE and Masson's trichrome staining experiments were performed to analyze the histopathological change in mice atrial tissues. Results Circ_0079480 expression was increased in AF patients' atrial tissues and Ang II-treated HAFs. Silencing circ_0079480 inhibited cell proliferation and migration and reduced fibrosis-associated gene expression in Ang II-treated HAFs. Circ_0079480 could target miR-338-3p to repress its expression. MiR-338-3p inhibitor blocked the inhibitory effects of circ_0079480 knockdown on HAFs proliferation, migration, and fibrosis. Thrombospondin-1 (THBS1) was confirmed as a downstream target of miR-338-3p, and circ_0079480 could sponge miR-338-3p to upregulate THBS1 expression. Moreover, silencing THBS1 suppressed Ang II-induced proliferation, migration, and fibrosis in HAFs. More importantly, depletion of circ_0079480 inactivated the THBS1/TGF-β1/Smad3 signaling by upregulating miR-338-3p. Mice experiments also confirmed the suppression of circ_0079480 knockdown on atrial fibrosis. Conclusion Circ_0079480 acts as a sponge of miR-338-3p to upregulate THBS1 expression and activate the TGF-β1/Smad3 signaling, finally promoting Ang II-induced atrial fibrosis.
研究领域:
心脏病学
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分子生物学
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细胞生物学
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DOI
PubMed
高影响因子
EUROPEAN JOURNAL OF PHARMACOLOGY
·
2021
·
IF 4.432
Fujing Wang,Rong Hu,Jiaxing Zhang,Tingting Pei,Zhuo'en He,Liliang Ju,Zhongxiao Han,Mingqing Wang,Wei Xiao
Renal fibrosis is the pathological consequence of progressive chronic kidney disease . Although it has been reported that vitamin D3 exerts antifibrotic effects, the underlying mechanisms remain unclear. This study is aimed at investigating the effects and molecular mechanisms in high-dose vitamin D3 treatment on renal fibrosis. A model of chronic kidney disease was established by 5/6 nephrectomy in rats characterised by high levels of serum creatine, urea nitrogen, and urinary protein. Serum 25-dihydroxyvitamin D3, calcium and parathormone levels were measured to evaluate vitamin D levels. Hematoxylin and eosin , periodic acid Schiff and Mallory's Trichrome staining were used to evaluate histopathological changes in rats. Moreover, the expression of vimentin , collagen I, α-smooth muscle actin and E-cadherin were analyzed at molecular and histopathological levels. Our results showed that exposure to vitamin D3 decreased the levels of serum creatine, urea nitrogen and urine protein and restored the homeostasis of calcium and parathormone. Vitamin D3 also downregulated the expression of vimentin, collagen I and α-smooth muscle actin and attenuated renal fibrosis and epithelial to mesenchymal transition in the kidney. Importantly, vitamin D3 treatment increased the expression of the vitamin D receptor and inhibited Transforming growth factor-β1 (TGF-β1)/Smad3 signaling pathway in rats kidneys with chronic kidney disease. Mechanistically, the upregulation of TGF-β1 and phosphorylation of Smad3 induced by vitamin D3 was reversed by activation of the vitamin D receptor. Our findings indicated that vitamin D3 is a potential antifibrotic drug in chronic kidney disease via the vitmin D receptor and inhibiting TGF-β1/Smad3 signaling pathway.
研究领域:
肾病学
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药理学
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分子生物学
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DOI
PubMed
高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
·
2023
·
IF 5.8
Li Shen,Shiyan Fu,Yonglai Chen,Wenrun Li,Suiyi Liu,Zhi Li,Jie Li,Yong Li,Yonghong Ran,Jing Zhang,Lu Qiao,Yuhui Hao
Radiation-induced pulmonary fibrosis (RIPF), one type of pulmonary interstitial diseases, is frequently observed following radiation therapy for chest cancer or accidental radiation exposure. Current treatments against RIPF frequently fail to target lung effectively and the inhalation therapy is hard to penetrate airway mucus. Therefore, this study synthesized mannosylated polydopamine nanoparticles (MPDA NPs) through one-pot method to treat RIPF. Mannose was devised to target M2 macrophages in the lung through CD 206 receptor. MPDA NPs showed higher efficiency of penetrating mucus, cellular uptake and ROS-scavenging than original polydopamine nanoparticles (PDA NPs) in vitro. In RIPF mice, aerosol administration of MPDA NPs significantly alleviated the inflammatory , collagen deposition and fibrosis. The western blot analysis demonstrated that MPDA NPs inhibited TGF-β1/Smad3 signaling pathway against pulmonary fibrosis. Taken together this study provide a novel M2 macrophages-targeting nanodrugs through aerosol delivery for the prevention and targeted treatment for RIPF.
研究领域:
药理学
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纳米技术
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肺科学
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放射生物学
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治疗学
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PubMed
高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR MEDICINE
·
2018
·Vol. 42
·期 4
·2155-2162
·
IF 2.784
Tao Song,Jingdong Zhao,Tongbai Jiang,Xing Jin,Yubin Li,Xinrong Liu
The present study investigated the effects of formononetin (FMN) against balloon injury‑induced neointima formation in vivo and platelet‑derived growth factor (PDGF)‑BB‑induced proliferation and migration of vascular smooth muscle cells (VSMCs) in vitro, and explored the underlying mechanisms. A rat model of carotid artery injury was established, in order to examine the effects of FMN on balloon injury‑induced neointima formation. Histological observation of the carotid artery tissues was conducted by hematoxylin and eosin staining. VSMC proliferation during neointima formation was observed by proliferating cell nuclear antigen staining. Subsequently, rat aortic VSMCs were isolated, and the effects of FMN on PDGF‑BB‑induced VSMC proliferation and migration were determined using Cell Counting Kit‑8 and Transwell/wound healing assays, respectively. Immunohistochemical and immunocytochemical staining was applied to measure the expression of transforming growth factor (TGF)‑β in carotid artery tissues and VSMCs, respectively. SMAD family member 3 (Smad3)/phosphorylated (p)‑Smad3 expression was examined by western blotting. FMN treatment significantly inhibited the abnormal proliferation of smooth muscle cells in neointima, and alterations to the vascular structure were attenuated. In addition, pretreatment with FMN effectively inhibited the proliferation of PDGF‑BB‑stimulated VSMCs (P<0.05). FMN also reduced the number of cells that migrated to the lower surface of the Transwell chamber and decreased wound‑healing percentage (P<0.05). The expression levels of TGF‑β were decreased by FMN treatment in vivo and in vitro, and Smad3/p‑Smad3 expression was also markedly inhibited. In conclusion, FMN significantly protected against balloon injury‑induced neointima formation in the carotid artery of a rat model; this effect may be associated with the regulation of VSMC proliferation and migration through altered TGF‑β1/Smad3 signaling.
研究领域:
药理学
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心血管疾病
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细胞生物学
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分子生物学
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DOI
PubMed
高影响因子
AAPS PHARMSCITECH
·
2025
·Vol. 26
·期 5
·1-14
·
IF 4
Liu Hongting,Sun Yao,Cai Shihao,Zhao Conglu,xu Xiang,Xu Aiguo,Zhou Honggang,Yang Cheng,Gu Xiaoting,Ai Xiaoyu
Idiopathic pulmonary fibrosis (IPF) is a progressive lung disease of unknown cause, with few effective therapies available and high mortality rates. Our preceding research indicated that formononetin (FMN) could improve the symptoms of the bleomycin-induced pulmonary fibrosis and be a promising drug against IPF. In this study, an inhalable formononetin-loaded poly(lactic-co-glycolic) acid (PLGA) large porous microspheres (FMN-PLGA-MSs) was prepared by the method of emulsion solvent evaporation. SEM showed that FMN-PLGA-MSs were loose particles existing many pores on the surfaces, and the measured mean geometric diameter was more than 10 µm. The encapsulation efficiency (EE) and drug loading efficiency (DL) were 87.72 ± 6.34% and 4.18 ± 0.30%. FMN in FMN-PLGA-MSs could be rapidly released within 2 h and sustainably released for 21 d. Cell tests and q-RT-PCR tests showed that FMN could inhibit the activation of fibroblasts and the deposition of extracellular matrix (ECM) by acting on the TGF-β1/Smad3 signaling pathway. FMN-PLGA-MSs showed higher antifibrotic effects than free FMN oral administration in the pulmonary fibrosis models of mice, remarkably improving pulmonary function, decreasing hydroxyproline levels, and attenuating lung injuries. By formulating formononetin into microsphere preparations, its solubility can be significantly enhanced, enabling effective pulmonary drug delivery. This approach not only improves lung targeting but also reduces systemic toxicity. Additionally, it facilitates superior lung deposition and extends the retention time of the formononetin within the lungs. Taken together, FMN-PLGA-MSs may be a promising inhaled medication for the treatment of IPF. Graphical Formononetin (FMN) can improve the symptoms of idiopathic pulmonary fibrosis (IPF). Large porous microparticle can improve lung retention and lung targeting. FMN is loaded in poly(lactic-co-glycolic)acid (PLGA) to get microspheres (FMN-PLGA-MSs) for intratracheal instillation treatment of IPF. FMN-PLGA-MSs remarkably improved pulmonary function, decreased hydroxyproline, and attenuated lung injuries. FMN-PLGA-MSs are promising intratracheal instillation medication for the treatment of IPF.
研究领域:
药学
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呼吸病学
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分子生物学
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PubMed
高影响因子
JOURNAL OF NUTRITIONAL BIOCHEMISTRY
·
2026
·
IF 5.2
Qianqian Li,Yufang Ni,Zhaoyang Li,Yuanxia Zou,Huaiying Guo,Honglian Wang,Qiong Zhang,Li Wang,Jianchun Li
Chronic Kidney Disease (CKD) inevitably progresses to End-Stage Renal Disease (ESRD) via tubulointerstitial fibrosis, a process predominantly driven by the transforming growth factor-β (TGF-β)/SMAD family member 3 (Smad3) signaling pathway. Although curdione, a major sesquiterpenoid from Curcumae Rhizoma, exhibits anti-fibrotic activity, its specific mechanism in renal fibrosis remains undefined. Here, we investigated the protective effects of curdione using the Unilateral Ureteral Obstruction (UUO) mouse model and TGF-β1-stimulated renal tubular epithelial cells (TCMK1). We found that curdione (25 and 100 mg/kg) significantly mitigated UUO-induced renal injury and tubular necrosis, suppressed the injury marker kidney injury molecule-1 (KIM-1), and dose-dependently inhibited α-smooth muscle actin (α-SMA), fibronectin (FN), and Collagen I. Consistently, in TGF-β1-stimulated TCMK1 cells, curdione prevented fibrotic morphological changes and suppressed the upregulation of profibrotic markers. Mechanistically, curdione suppressed the expression of Filamin Binding LIM Protein 1 (Fblim1) and the phosphorylation of Smad2/3 in vivo and in vitro . Crucially, Fblim1 overexpression, achieved in vivo via ultrasound microbubble-mediated plasmid delivery and confirmed in vitro , significantly abrogated curdione’s anti-fibrotic effects and restored p-Smad3 levels. Furthermore, molecular docking predicted a strong binding affinity (-6.7 kcal/mol), while cellular thermal shift assay (CETSA) and drug affinity responsive target stability (DARTS) assays physically validated that curdione directly binds to Fblim1, enhancing its molecular stability. In conclusion, this study provides convergent evidence at the tissue, cellular, and molecular levels that curdione exerts potent anti-fibrotic and renoprotective effects by directly targeting Fblim1, thereby functionally suppressing the TGF-β1/Smad3 signaling cascade. These findings establish curdione as a promising natural therapeutic candidate for CKD.
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高影响因子
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