1.Microneedle-facilitated Portulaca oleracea L.-derived nanovesicles ameliorate atopic dermatitis by modulating macrophage M1/M2 polarization and inhibiting NF-κB and STING signaling pathways.
Meng LONG ; Jiaqi LI ; Yuecheng ZHU ; Hang RUAN ; Jing LI ; Fanjun XU ; Ruipeng LIU ; Tao YANG ; Yanqin SHI ; Nianping FENG ; Yongtai ZHANG
Acta Pharmaceutica Sinica B 2025;15(11):5966-5987
Clinical management of atopic dermatitis (AD) is challenged by its susceptibility to recurrence, side effects, and high costs. We found that Portulaca oleracea L.-derived nanovesicles (PDNV) exert anti-inflammatory effects by modulating macrophage M1/M2 polarization. These effects were achieved through pathways including inhibition of nuclear factor-κB (NF-κB) and stimulator of interferon genes (STING) protein expression in diseased tissues, demonstrating their potential to ameliorate AD symptoms. To increase the transdermal permeation of PDNV, dissolvable microneedles composed primarily of hyaluronic acid (HA) were developed as an adjunctive means of delivery. Meanwhile, polysaccharides of Portulaca oleracea L., which were synergistic with PDNV, were used as microneedle constituent materials to enhance the mechanical properties and physical stability of HA. This new means of delivery significantly improves the treatment of AD and also provides new options for the efficient utilization of plant extracellular vesicles and the treatment of AD. In addition, transcriptomic analysis of PDNV showed that the mRNAs of Portulaca oleracea L. are closest to those of ferns, which may shed light on related evolutionary and plant species identification studies.
2.Signatures of proteomics and glycoproteomics revealed liraglutide ameliorates MASLD by regulating specific metabolic homeostasis in mice.
Yuxuan CHEN ; Chendong LIU ; Qian YANG ; Jingtao YANG ; He ZHANG ; Yong ZHANG ; Yanruyu FENG ; Jiaqi LIU ; Lian LI ; Dapeng LI
Journal of Pharmaceutical Analysis 2025;15(11):101273-101273
Liraglutide (Lira), a glucagon-like peptide-1 (GLP-1) receptor agonist approved for diabetes and obesity, has shown significant potential in treating metabolic dysfunction-associated steatotic liver disease (MASLD). However, its systematic molecular regulation and mechanisms remain underexplored. In this study, a mouse model of MASLD was developed using a high-fat diet (HFD), followed by Lira administration. Proteomics and glycoproteomics were analyzed using label-free liquid chromatography-tandem mass spectrometry (LC-MS/MS), while potential molecular target analysis was conducted via quantitative real-time polymerase chain reaction (qPCR) and Western blotting. Our results revealed that Lira treatment significantly reduced liver weight and serum markers, including alanine aminotransferase (ALT) and others, with glycosylation changes playing a more significant role than overall protein expression. The glycoproteome identified 255 independent glycosylation sites, emphasizing the impact of Lira on amino acid, carbohydrate metabolism, and ferroptosis. Simultaneously, proteomic analysis highlighted its effects on lipid metabolism and fibrosis pathways. 21 signature molecules, including 7 proteins and 14 N-glycosylation sites (N-glycosites), were identified as potential targets. A Lira hydrogel formulation (Lira@fibrin (Fib) Gel) was developed to extend drug dosing intervals, offering enhanced therapeutic efficacy in managing chronic metabolic diseases. Our study demonstrated the importance of glycosylation regulation in the therapeutic effects of Lira on MASLD, identifying potential molecular targets and advancing its clinical application for MASLD treatment.
3.Super selective renal artery embolization-assisted partial nephrectomy for T1 stage renal carcinoma:a clinical study
Weili PENG ; Hanbo LIU ; Jiamei QIU ; Jiaqi ZHANG ; Yan XIA ; Yang LIU ; Feng LIU ; Qijun WO ; Dahong ZHANG ; Jun CHEN
Journal of Interventional Radiology 2024;33(11):1192-1196
Objective To discuss the clinical application value of super selective renal artery embolization-assisted(SRAE-assisted)laparoscopic partial nephrectomy(LPN).Methods A retrospective analysis of the clinical data of patients with stage T1 renal carcinoma,who received LPN,was conducted.The patients were divided into SRAE group(performing LPN without adopting renal hilum vascular clamping)and VC group(performing LPN with adopting renal hilum vascular clamping).The time spent for operation,amount of intraoperative blood loss,and preoperative and postoperative renal functions were compared between the two groups.According to the warm ischemia time(WIT),the patients of the VC group were subdivided into WIT<25 min subgroup and WIT≥25 min subgroup,and the preoperative and postoperative renal functions were compared between the two subgroups.Results A total of 59 patients with renal carcinoma were enrolled in this study,including 12 patients in SRAE group and 47 patients in VC group.In VC group,WIT<25 min subgroup had 33 patients and WIT≥25 min subgroup had 14 patients.In both SRAE group and VC group,no patient was referred to open surgery or total nephrectomy.No patient in SRAE group was referred to traditional LPN.The time spent for operation in SRAE group and VC group was 100.50(73.75,132.50)min and 120.00(90.00,145.00)min respectively,the difference between the two groups was not statistically significant(P>0.05).The postoperative estimated glomerular filtration rate(eGFR)in SRAE group was 100.56(82.85,106.81),which was remarkably higher than 84.66(70.84,94.85)in VC group(P<0.05).The postoperative serum creatinine level in VC group was 90.50(77.10,104.90)μmol/L,which was strikingly higher than 72.24(65.97,80.27)μmol/L in SRAE group(P<0.05).The amount of intraoperative blood loss in SRAE group was 50(50,50)mL,which was lower than 50(50,100)mL in VC group(P<0.05).In VC group,the postoperative eGFR in WIT≥25 min subgroup was 66.13(47.08,82.50),which was lower than 90.80(77.18,98.78)in WIT<25 min subgroup(P<0.05).During the postoperative one-year follow-up,no recurrence was observed in both groups.Conclusion Compared with traditional LPN,SRAE-assisted LPN doesn't need to obstruct the renal hilus during surgery,which can avoid the ischemic impairment of the residual renal function and reduce the amount of intraoperative blood loss,moreover,it doesn't increase the operation time,doesn't increase the incidence of complications such as postoperative bleeding,etc.and doesn't affect the curative efficacy and patient's prognosis.
4.Dentofacial phenotype of non-syndromic tooth agenesis patients with PAX9 mutation
Jiaqi DOU ; Jie GAO ; Xiaoling BIAN ; Feng WANG ; Qinggang DAI ; Yiqun WU
Journal of Shanghai Jiaotong University(Medical Science) 2024;44(6):687-693
ObJective·To evaluate the dentofacial phenotype in non-syndromic tooth agenesis(NSTA)patients with paired box gene 9(PAX9)mutation.Methods·Patients with NSTA who visited the Department of Second Dental Center of Shanghai Ninth People's Hospital,Shanghai Jiao Tong University School of Medicine,between January 2016 and December 2023 received whole-exome sequencing to screen PAX9 mutation.The location and number of missing teeth were evaluated by oral pantomography,and dentofacial deformities were evaluated by X-ray cephalometrics.Results·Seven patients with PAX9 mutation were included in the study,including 3 males(42.9%)and 4 females(57.1%).The patients were 7-31 years old at first visit,with a mean age of(19.7±8.0)years old.All the 7 patients were PAX9 heterozygotes,of which 4 were missense and 3 were frameshift.The average number of missing teeth was 15.9±2.9.The number of missing teeth in maxilla(9.6±2.6)was slightly higher than that in mandible(6.3±2.4)(P=0.030).Maxillary second molar(100.0%),maxillary canine(85.7%)and mandibular second premolar(85.7%)were the three most common missing teeth,while mandibular lateral incisor(14.3%)and mandibular canine(14.3%)were the two least missing teeth.Patients with frameshift mutation had more missing teeth(18.3±2.1)than those with missense mutation(14.0±1.8)(P=0.032).X-ray cephalometrics analysis results showed that the angle sella-nasion-subspinale(SNA),angle nasion-subspinale-subspinale-porion(NA-Apo)and sella-nasion(S-N)in adult patients with PAX9 mutation were significantly lower than the normal reference values,suggesting a shorter anterior cranial base and maxillary length.The frankfort horizontal plane-nasion-porion(FH-NPo)was higher than the reference value,and the Y-axis was lower than the reference value,indicating a more prognathic mandible.The angle subspinale-nasion-supramental(ANB)was lower than the reference value,indicating a skeletal angle Ⅲ malocclusion.The angle upper central incisor-nasion-subspinale(angle U1-NA)was higher than the reference value,indicating a lip inclination of maxillary central incisor.The angle lower central incisor-mandibular plane(IMPA)and lower central incisor-nasion-supramental(L1-NB)were lower than the reference values,indicating a retroclination of the mandibular central incisor,and crossbite in the maxillary and mandibular anterior teeth.Conclusion·The dentofacial phenotype of PAX9-mutated patients with NSTA is reported comprehensively.It is helpful to improve the understanding of the role of PAX9 in human maxillofacial development.
5.Study on fentanyl reducing the sensitivity of sorafenib by promoting autophagy via reactive oxygen species-protein kinase B/ mammalian target of rapamycin signaling pathway in hepatocellular carcinoma
Jing ZHOU ; Kaixua FENG ; Jiaqi YAO
Chinese Journal of Postgraduates of Medicine 2024;47(5):466-474
Objective:To explore the influence of fentanyl on sorafenib sensitivity in the treatment of hepatocellular carcinoma (HCC) pain.Methods:Adopting a prospective research method, all laboratory tests were conducted in the Central Laboratory of Xinhua Hospital, Dalian University from August 2021 to August 2023. CCK-8 method, clone formation assay and cell counting under light microscope were used to detect cell proliferation of the human liver cancer cell line HepG2. LysoTracker, monodansyl cadaverine and transmission electron microscopy (TEM) were used to detect the levels of autophagy in fentanyl-induced HCC cells. The level of reactive oxygen species was measured using the fluorescent dye, 2′, 7′-dichlorodihydrofluorescein diacetate (DCFH-DA). Protein immunoblotting test was applied to detect the protein level of upstream protein kinase B (Akt)/mammalian target of rapamycin (mTOR) signaling pathway. The effects of the antitumor efficacy of fentanyl combined with sorafenib were evaluated by the HCC tumor-forming experiment in nude mice. Fifteen female BALB/c nude mice (6-week-old) were divided into control group, sorafenib group and sorafenib + fentanyl group by random digits table method with 5 mice each. The nude mice in three groups were subcutaneously injected at left axilla HepG2 cells (4 ×10 6). The nude mice in control group, sorafenib group and sorafenib + fentanyl group were respectively treated with injection of 1 ml of 0.9% sodium chloride, oral sorafenib with 20 mg/kg, oral sorafenib with 20 mg/kg combined with intravenous injection fentanyl with 0.05 mg/kg every other day for 3 consecutive weeks. The tumor volume was measured at the 4th、8th、12th、16th、20th and 24th day. The nude mice were sacrificed after tumors formed and the tumor tissues were collected and weighed. The tumor tissue was checked by the immunohistochemical staining assay. Results:The CCK-8 and clone formation assay results showed that fentanyl reduced the antitumor effect of sorafenib in HCC. Fentanyl upregulated the expression of autophagy-related proteins Beclin-1 and LC3, and immunofluorescence and transmission electron microscopy showed that fentanyl could increase the levels of autophagy in HCC cells. DCFH-DA staining showed that fentanyl increased reactive oxygen species production, and Protein immunoblotting test result showed that fentanyl reduced the levels of phosphorylated protein kinase B (p-Akt) and phosphorylated mammalian target of rapamycin (p-mTOR). The autophagy inhibitor 3-methyladenine (3-MA) could block the protective autophagy induced by fentanyl, and then reduce the adverse effects of fentanyl on sorafenib. There was no statistical difference in tumor volume at 4th, 8th and 12th day among three groups ( P>0.05); the tumor volume 16th, 20th and 24th and weight in fentanyl + sorafenib group and sorafenib group were significantly lower than those in control group: (275.00 ± 11.58) and (174.00 ± 91.42) mm 3 (307.40 ± 81.39) mm 3, (701.00 ± 105.08) and (563.60 ± 89.59) mm 3 vs. (855.20 ± 68.71) mm 3, (971.60 ± 79.87) and (691.80 ± 11.17) mm 3 vs. (1 177.20 ± 105.79) mm 3, (705.00 ± 35.50) and (540.20 ± 80.76) mg vs. (1 118.40 ± 76.81) mg, the indexes in sorafenib group were significantly lower than those in fentanyl + sorafenib group, and there were statistical differences ( P<0.05). The immunohistochemical staining assay result showed that Ki67 and LC3 positive cells (brown cells) in fentanyl + sorafenib group were significantly more than those in sorafenib group. Conclusions:Fentanyl reduces the suppressive effect of sorafenib on HCC tumor growth by inducing protective autophagy, which could be weakened by adding autophagy inhibitors.
6.Baihe Wuyaotang Ameliorates NAFLD by Enhancing mTOR-mediated Liver Autophagy
Rui WANG ; Tiantian BAN ; Lihui XUE ; Xinyi FENG ; Jiyuan GUO ; Jiaqi LI ; Shenghe JIANG ; Xiaolei HAN ; Baofeng HU ; Wenli ZHANG ; Naijun WU ; Shuang LI ; Yajuan QI
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(7):66-77
ObjectiveTo investigate the therapeutic effect of Baihe Wuyaotang (BWT) on non-alcoholic fatty liver disease (NAFLD) and elucidate its underlying mechanism. MethodC57BL/6J mice were randomly assigned to six groups: normal control, model, positive drug (pioglitazone hydrochloride 1.95×10-3 g·kg-1), and low-, medium-, and high-dose BWT (1.3,2.5 and 5.1 g·kg-1). Following a 12-week high-fat diet (HFD) inducement, the mice underwent six weeks of therapeutic intervention with twice-daily drug administration. Body weight was monitored weekly throughout the treatment period. At the fifth week, glucose tolerance (GTT) and insulin tolerance (ITT) tests were conducted. Subsequently, the mice were euthanized for the collection of liver tissue and serum, and the subcutaneous adipose tissue (iWAT) and epididymal adipose tissue (eWAT) were weighed. Serum levels of total triglycerides (TG) and liver function indicators,such as alanine aminotransferase (ALT) and aspartate aminotransferase (AST), were determined. Histological examinations, including oil red O staining, hematoxylin-eosin (HE) staining, Masson staining, and transmission electron microscopy, were performed to evaluate hepatic lipid deposition, pathological morphology, and ultrastructural changes, respectively. Meanwhile, Western blot and real-time quantitative polymerase chain reaction (Real-time PCR) were employed to analyze alterations, at both gene and protein levels, the insulin signaling pathway molecules, including insulin receptor substrate 1/2/protein kinase B/forkhead box gene O1 (IRS1/2/Akt/FoxO1), glycogen synthesis enzymes phosphoenolpyruvate carboxy kinase (Pepck) and glucose-6-phosphatase (G6Pase), lipid metabolism-related genes stearoyl-coA desaturase-1 (SCD-1) and carnitine palmitoyltransferase-1 (CPT-1), fibrosis-associated molecules α-smooth muscle actin (α-SMA), type Ⅰ collagen (CollagenⅠ), and the fibrosis canonical signaling pathway transforming growth factor-β1/drosophila mothers against decapentaplegic protein2/3(TGF-β1/p-Smad/Smad2/3), inflammatory factors such as interleukin(IL)-6, IL-8, IL-11, and IL-1β, autophagy markers LC3B Ⅱ/Ⅰ and p62/SQSTM1, and the expression of mammalian target of rapamycin (mTOR). ResultCompared with the model group, BWT reduced the body weight and liver weight of NAFLD mice(P<0.05, P<0.01), inhibited liver lipid accumulation, and reduced the weight of white fat: it reduced the weight of eWAT and iWAT(P<0.05, P<0.01) as well as the serum TG content(P<0.05, P<0.01). BWT improved the liver function as reflected by the reduced ALT and AST content(P<0.05, P<0.01). It improved liver insulin resistance by upregulating IRS2, p-Akt/Akt, p-FoxO1/FoxO1 expressions(P<0.05). Besides, it improved glucose and lipid metabolism disorders: it reduced fasting blood glucose and postprandial blood glucose(P<0.05, P<0.01), improved GTT and ITT(P<0.05, P<0.01), reduced the expression of Pepck, G6Pase, and SCD-1(P<0.01), and increased the expression of CPT-1(P<0.01). The expressions of α-SMA, Collagen1, and TGF-β1 proteins were down-regulated(P<0.05, P<0.01), while the expression of p-Smad/Smad2/3 was downregulated(P<0.05), suggesting BWT reduced liver fibrosis. BWT inhibited inflammation-related factors as it reduced the gene expression of IL-6, IL-8, IL-11 and IL-1β(P<0.01) and it enhanced autophagy by upregulating LC3B Ⅱ/Ⅰ expression(P<0.05)while downregulating the expression of p62/SQSTM1 and mTOR(P<0.05). ConclusionBWT ameliorates NAFLD by multifaceted improvements, including improving IR and glucose and lipid metabolism, anti-inflammation, anti-fibrosis, and enhancing autophagy. In particular, BWT may enhance liver autophagy by inhibiting the mTOR-mediated signaling pathway.
7.Tibetan medicine Twelve Flavors Yishou San alleviated lipopolysaccharide-induced acute lung injury through inhibiting neutrophil infiltration
Wenling RONG ; Yaxuan LI ; Yanfei HONG ; Jiaqi CUI ; Jing FENG ; Zhulang CHU ; Guiying PENG ; Qingjia REN ; Qinghong DU
China Modern Doctor 2024;62(33):56-63,124
Objective To explore the immune mechanism of Tibetan medicine Twelve Flavors Yishou San in intervening with acute lung injury.Methods Construct a lipopolysaccharide(LPS)-induced acute lung injury rat model and treated it with Twelve Flavors Yishou San.The intervention effect of Twelve Flavors Yishou San on LPS induced acute lung injury was determined through lung pathological sections and blood gas analysis.Enzyme linked immunosorbent assay(ELISA)was used to detect the expression of pro-inflammatory cytokine tumor necrosis factor-α(TNF-α)and anti-inflammatory cytokine interleukin(IL)-10 in rat's bronchoalveolar lavage fluid.Flow cytometry was used to detect changes in immune cells in rat's bronchoalveolar lavage fluid,lungs,spleen and peripheral blood.Results LPS successfully induced an acute lung injury model in rats,and Twelve Flavors Yishou San could alleviate the exudation of inflammatory cells,elevated oxygen partial pressure in LPS induced acute lung injury to varying degrees.The ELISA results of rat bronchoalveolar lavage fluid showed that compared with normal control group,the TNF-α level in the bronchoalveolar lavage fluid of rats with acute lung injury was increased and the IL-10 level was decreased,while the Twelve Flavors Yishou San could alleviate this effect.The results of flow cytometry showed that Twelve Flavors Yishou San could significantly reduce neutrophil infiltration in rat bronchoalveolar lavage fluid,but had no significant effect on macrophages and adaptive immune response.Conclusion Twelve Flavors Yishou San can alleviate LPS induced acute lung injury by inhibiting neutrophil infiltration,providing an important experimental basis for fully understanding the therapeutic mechanism of Twelve Flavors Yishou San.
8.Four Cases of Atypical Teratoid/Rhabdoid Tumor of Lateral Ventricles in Children
Jiaqi FENG ; Xinyao WANG ; Lei BAO ; Wenbin GUAN ; Yabing ZHOU ; Xiaoqiang WANG
Medical Journal of Peking Union Medical College Hospital 2024;15(3):655-660
Atypical teratoid/rhabdoid tumor (AT/RT) is a rare malignancy located primarily in infratentorial or subcortical areas with a poor prognosis, and rarely in the lateral ventricle with a very poor prognosis. So far, only 6 cases of AT/RT in lateral ventricle have been reported in China. This article reports the diagnosis and treatment of four children with AT/RT in the lateral ventricle, and discusses the clinical manifestations, differentiation and diagnosis, treatment and prognosis of the disease through literature review, in order to improve clinicians' understanding of the disease and reduce missed diagnosis and misdiagnosis.
9.Discussion on Traditional Chinese Medicine Theory and Pharmacological Mechanism of Xuanfei Baidu Prescription in Treatment of Viral Pneumonia
Yihao ZHANG ; Xin PENG ; Zheyu LUAN ; Yunfan WANG ; Jiaqi SHANG ; Jihong FENG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(19):214-224
Viral pneumonia (VP) is an inflammatory disease caused by one or more viruses that infect the upper respiratory tract and spread downward. Causing varying degrees of pulmonary parenchymal damage, VP poses a serious threat to the society and public health. The treatment of VP now faces the dilemma of drug shortage, since Western medicine can only alleviate symptoms and lacks specific treatment methods. In traditional Chinese medicine (TCM), VP is assigned as an epidemic disease, with the etiology attributed to epidemic toxin and six excesses and the pathological factors of dampness, heat, toxin, deficiency, and stasis. The basic pathogenesis of VP is Yin-Yang imbalance, dysfunction of Zang-Fu organs, and healthy Qi deficiency. Accordingly, the treatment should follow the principle of replenishing healthy Qi and expelling pathogen. The treatment method of VP is mainly developed based on syndrome differentiation of six meridians, defense-Qi-nutrient-blood, and triple energizer. Xuanfei Baidu prescription (XFBD) is an effective prescription developed by Academician ZHANG Boli and Professor LIU Qingquan by literature research and selection of multi-component Chinese medicine. It is the product of modern research combined with TCM. XFBD is modified from Maxing Shigantang, Maxing Yigantang, Tingli Dazao Xiefeitang, Qianjin Weijingtang, and Buhuanjin Zhengqisan. It is mainly used to treat epidemic diseases with the syndrome of dampness toxin stagnating in the lung, with the effects of ventilating lung and resolving dampness, clearing heat and expelling pathogen, purging lung, and removing toxin, demonstrating the potential for the prevention and treatment of VP. This paper reviews the research progress of XFBD in combating VP in terms of the prescription composition, compatibility ideas, indications, and clinical new applications, as well as the pharmacological mechanisms of inhibiting virus, reducing inflammation, regulating immune system, ameliorating pulmonary fibrosis, and modulating intestinal flora. In addition, we put forward our thoughts and suggestions on the problems in the research, with a view to informing the clinical use of drugs and the basic research on the treatment of VP including COVID-19.
10.Progress of interruption of schistosomiasis transmission and prospects in Yunnan Province
Yun ZHANG ; Lifang WANG ; Xiguang FENG ; Mingshou WU ; Meifen SHEN ; Hua JIANG ; Jing SONG ; Jiayu SUN ; Chunqiong CHEN ; Jiaqi YAN ; Zongya ZHANG ; Jihua ZHOU ; Yi DONG ; Chunhong DU
Chinese Journal of Schistosomiasis Control 2024;36(4):422-427
Schistosomiasis was once hyper-endemic in Yunnan Province. Following concerted efforts for over 70 years, remarkable achievements have been made for schistosomiasis control in the province. In 2004, the Mid- and Long-term Plan for Schistosomiasis Prevention and Control in Yunnan Province was initiated in Yunnan Province, and the target for transmission control of schistosomiasis was achieved in the province in 2009. Following the subsequent implementation of the Outline for Key Projects in Integrated Schistosomiasis Control Program (2009—2015) and the 13th Five - year Plan for Schistosomiasis Control in Yunnan Province, no acute schistosomiasis had been identified in Yunnan Province for successive 12 years, and no local Schistosoma japonicum infections had been detected in humans, animals or Oncomelania hupensis snails for successive 6 years in the province by the end of 2020. The transmission of schistosomiasis was interrupted in Yunnan Province in 2020. This review summarizes the history of schistosomiasis, changes in schistosomiasis prevalence and progress of schistosomiasis control in Yunnan Province, and proposes the future priorities for schistosomiasis control in the province.

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