1.Mechanism of Icariin in Regulating TGF-β1/Smad Pathway to Induce Autophagy in Human Bone Microvascular Endothelial Cells
Yaqi ZHANG ; Yankun JIANG ; Guoyuan SUN ; Bo LI ; Ran DING ; Cheng HUANG ; Weiguo WANG ; Qidong ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):123-130
ObjectiveTo investigate the regulatory effect of icariin (ICA) on transforming growth factor-β1 (TGF-β1)/Smad pathway in bone microvascular endothelial cells (BMECs) and the effect on autophagy in BMECs. MethodsBMECs were isolated and cultured, and the cell types were identified by immunofluorescence. Cells were divided into the control group, model group (0.1 g·L-1 methyl prednisolone), ICA group (0.1 g·L-1 methyl prednisolone +1×10-5 mol·L-1 ICA), and TGF-β inhibitor group (0.1 g·L-1 methyl prednisolone +1×10-5 mol·L-1 ICA +1×10-5 mol·L-1 LY2157299). Transmission electron microscopy was used to observe the ultrastructure and autophagosome number of BMECs. Autophagy double-standard adenovirus was used to monitor the confocal autophagy flow generation of each cell. Real-time quantitative polymerase chain reaction (Real-time PCR) and Western blot were used to detect the gene and protein expression of autophagy in the TGF-β1/ Smad pathway. ResultsAfter cell separation culture, platelet endothelial cell adhesion molecule (CD31) and von willebrand factor (vWF) immunofluorescence identified BMECs. Transmission electron microscopy showed that the cell membrane was damaged, and the nucleus was pyknotic and broken in the model group. Compared with the model group, the ICA group had complete cell membranes, clear structures, with autophagy-lysosome sparsely distributed. The confocal photo showed that BMECs had autophagosomes and autophagy-lysosomes, and the autophagy expression of the ICA group was similar to that of the blank group. Compared with the blank group, in the model group and the LY2157299 group, autophagosomes and autophagy-lysosomes were barely seen in the autophagy flow. Compared with the blank group, the mRNA and protein expressions of autophagy effector protein 1 (Beclin1) and microtubule-associated protein 1 light chain 3B (LC3B) in the model group were significantly decreased (P<0.01), and those of ubiquitin-binding protein (p62) were significantly increased (P<0.01). The mRNA expression of TGF-β1, Smad homolog 2 (Smad2), and Smad homolog 3 (Smad3) decreased (P<0.05, P<0.01). The protein expressions of TGF-β1, p-Smad2, and p-Smad3 were significantly decreased (P<0.01). Compared with those of the model group, the mRNA and protein expression of Beclin1 and LC3B in BMECs of the ICA group increased (P<0.01), and those of p62 significantly reduced (P<0.01). The mRNA expression of TGF-β1, Smad2, and Smad3 increased significantly (P<0.01). The protein expression of TGF-β1, p-Smad2, and p-Smad3 increased significantly (P<0.01). Compared with those in the model group, the mRNA and protein expressions of Beclin1, LC3B, and p62 in the inhibitor group were not statistically significant. The expression of key genes and proteins of the TGF-β1 pathway in the inhibitor group was not statistically significant. ConclusionICA can promote glucocorticoid-induced autophagy expression of BMECs, and its mechanism may be related to activating the TGF-β1/Smad signaling pathway.
2.Management status and influencing factors of disease stabilization in patients with severe mental disorders in Luzhou City, Sichuan Province
Xuemei ZHANG ; Bo LI ; Benjing CAI ; Youguo TAN ; Bo XIANG ; Jing HE ; Qidong JIANG ; Jian TANG
Sichuan Mental Health 2025;38(2):131-137
BackgroundSevere mental disorders represent a major public health concern due to the high disability rates and substantial disease burden, which has garnered significant national attention and prompted their inclusion in public health project management systems. However, credible evidence regarding the current status of disease management and factors influencing disease stabilization among patients with severe mental disorders in Luzhou City, Sichuan Province, remains limited. ObjectiveTo investigate the current management status of patients with severe mental disorders in Luzhou City, Sichuan Province, and to analyze influencing factors of disease stabilization among patients under standardized care, so as to provide evidence-based insights for developing targeted management strategies to optimize clinical interventions for this patient population. MethodsIn March 2023, data were extracted from the Sichuan Mental Health Service Comprehensive Management Platform for patients with severe mental disorders in Luzhou City who received management between December 2017 and December 2022. Information on mental health service utilization and clinical status changes was collected. Trend analysis was conducted to evaluate temporal changes in key management indicators for severe mental disorders in Luzhou City. Logistic regression analysis was employed to identify factors influencing the disease stabilization or fluctuation of these patients. ResultsThis study enrolled a total of 20 232 patients. In Luzhou City, the stabilization rate and standardized management rate of severe mental disorders were 94.89% and 79.36% in 2017, respectively, which increased to 95.33% and 96.92% by 2022. The regular medication adherence rate rose from 34.42% in 2018 to 86.81% in 2022. In 2022, the regular medication adherence rate was 71.80% for schizophrenia, 55.26% for paranoid psychosis, and 51.43% for schizoaffective disorder. Multivariate analysis identified the following protective factors for disease stabilization: age of 18~39 years (OR=0.613, 95% CI: 0.409~0.918), age of 40~65 years (OR=0.615, 95% CI: 0.407~0.931), urban residence (OR=0.587, 95% CI: 0.478~0.720), and regular medication adherence (OR=0.826, 95% CI: 0.702~0.973). Risk factors for disease fluctuation included poor (OR=1.712, 95% CI: 1.436~2.040), non-inclusion in care-support programs (OR=1.928, 95% CI: 1.694~2.193), non-participation in community rehabilitation (OR=2.255, 95% CI: 1.930~2.634), and intermittent medication adherence (OR=3.893, 95% CI: 2.548~5.946). ConclusionThe stability rate, standardized management rate, and regular medication adherence rate of patients with severe mental disorders in Luzhou City have shown a year-by-year increase. Age, household registration status, economic condition, medication compliance, and community-based rehabilitation were identified as influencing factors for disease fluctuation in these patients. [Funded by Luzhou Science and Technology Plan Project (number, 2022-ZRK-186)]
3.Non-small molecule PROTACs (NSM-PROTACs): Protein degradation kaleidoscope.
Sinan MA ; Jianai JI ; Yuanyuan TONG ; Yuxuan ZHU ; Junwei DOU ; Xian ZHANG ; Shicheng XU ; Tianbao ZHU ; Xiaoli XU ; Qidong YOU ; Zhengyu JIANG
Acta Pharmaceutica Sinica B 2022;12(7):2990-3005
The proteolysis targeting chimeras (PROTACs) technology has been rapidly developed since its birth in 2001, attracting rapidly growing attention of scientific institutes and pharmaceutical companies. At present, a variety of small molecule PROTACs have entered the clinical trial. However, as small molecule PROTACs flourish, non-small molecule PROTACs (NSM-PROTACs) such as peptide PROTACs, nucleic acid PROTACs and antibody PROTACs have also advanced considerably over recent years, exhibiting the unique characters beyond the small molecule PROTACs. Here, we briefly introduce the types of NSM-PROTACs, describe the advantages of NSM-PROTACs, and summarize the development of NSM-PROTACs so far in detail. We hope this article could not only provide useful insights into NSM-PROTACs, but also expand the research interest of NSM-PROTACs.
4.Long-term trend of colorectal cancer survival rate in Qidong, 1972-2016.
Ming Bo JIANG ; Yong Sheng CHEN ; Jun WANG ; Yuan You XU ; Lu Lu DING ; Yong Hui ZHANG ; Jian Guo CHEN ; Jian ZHU
Chinese Journal of Oncology 2022;44(12):1357-1361
Objective: The survival of colorectal cancer in Qidong City, Jiangsu Province from 1972 to 2016 was analyzed to provide a basis for the evaluation of prognosis and the formulation of prevention and control measures. Methods: Colorectal cancer data were obtained from the Qidong Cancer Registration and Reporting System, and the follow-up was up to December 31, 2021. The observed survival rate (OSR) and relative survival rate (RSR) were calculated by SURV 3.01 software, and the trend test was performed by Hakulinen's likelihood ratio test. The Joinpoint regression model was used to calculate the average annual percentage change (AAPC) of survival, and the ARIMA model was used to predict the trend of colorectal cancer survival. Results: There were 8 637 new cases of colorectal cancer in Qidong from 1972 to 2016. Dividing 1972-2016 into 9 periods at 5-year intervals, the 5-year OSR from 1972-1976 to 2012-2016 increased from 21.86% to 48.86%, and the 5-year RSR increased from 26.45% to 59.91%. The increasing trend of RSR was statistically significant (χ(2)=587.47, P<0.001). From 1972 to 2016, the survival rates of colorectal cancer in different sexes in Qidong were similar, and the 5-year RSR was 44.63% for men and 44.07% for women. Since the 1990s, the 5-year OSR and RSR for men have been lower than those for women. From 1972 to 2016, the 5-year RSR of colorectal cancer in Qidong was significantly improved in the 65-74 and ≥75-year-old groups, but the survival rate of the ≥75-year-old group was still the lowest (36.78%), followed by the 35-44-year-old group ( 43.04%). The time trend showed that the overall AAPC of colorectal cancer 5-year RSR in Qidong from 1972 to 2016 was 2.50% (t=16.45, P<0.001). The upward trend of different sexes was consistent, and the increase was greater in women (AAPC for males=2.18%, AAPC for females=2.54%, both P<0.05). The 5-year RSR of colorectal cancer in each age group showed an upward trend, and the AAPCs of the 35-44, 45-54, 55-64, 65-74, and ≥75-year-old groups were 1.54%, 1.83%, 2.00%, 3.51% and 4.35%, respectively (all P<0.05). The prediction results of colorectal cancer survival rate showed that the 5-year RSR of colorectal cancer in Qidong will increase to 71.62% by 2026. Conclusions: The overall survival rate of colorectal cancer patients in Qidong has been greatly improved, but there is still room for improvement. We should continue to pay attention to the early diagnosis and early treatment of colorectal cancer.
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5.Pathological analysis of 4 652 cases of renal biopsy: a multicentral study in Beijing from 2008 to 2020
Zongli DIAO ; Zengyu GUO ; Huamin WANG ; Qidong ZHANG ; Qun JIANG ; Gang WANG ; Weikang GUO ; Hongdong HUANG ; Wenhu LIU
Chinese Journal of General Practitioners 2021;20(12):1282-1287
Objective:To analyze characteristics and trends of histopathological diagnosis of adult renal biopsy in Beijing from 2008 to 2020.Methods:A total of 4 652 cases of adult renal biopsy were collected from three hospitals in Beijing between 2008 and 2020. The patients were divided into three age groups: 18-40 years, 40-65 years and≥ 65 years; and also divided into three period: 2008-2011, 2012-2015, and 2016-2020. The pathological characteristics and changes of renal biopsy were analyzed in three age groups at different periods.Results:Among 4 652 cases primary glomerular disease accounted for 81.8%, the membranous nephropathy (MN, 32.4%, 1 509/4 652), IgA nephropathy (IgAN, 29.2%, 1 356/4 652) and minor glomerular abnormalities (MGA, 11.3%, 526/4 652) were the top three pathological types. The overall proportion of MN and diabetic nephropathy (DN) increased from 20.3% and 2.3% in 2008-2011 to 37.3% and 10.1% in 2016-2020) (χ2=99.9 and 96.1, both P<0.01), respectively. For age group 18-40 years, the MN and DN increased from 11.2% and 1.6% in 2008-2011 to 24.7% and 5.5% in 2016-2020 (χ2=32.7 and 20.7, both P<0.01), respectively. For age group 40-65 years the MN and DN increased from 26.6% and 3.2% in 2008-2011 to 41.5% and 13.1% in 2016-2020 (χ2=39.1 and 57.3, both P<0.01), respectively. For age group≥65 years the MN was the most common pathological type in the three periods, fluctuating between 41.3% and 55.0% (χ2=5.2, P=0.08); and DN increased from 0(0/63) in 2008-2011 to 7.5%(22/292) in 2016-2020 (χ2=8.1, P=0.02). Conclusion:The renal biopsy data show that membranous nephropathy and diabetic nephropathy are the most common primary and secondary adult glomerular diseases in Beijing recently.
6.Application value of nano-carbon tracer technique in the treatment of malignant tumors of pancreatic body and tail in radical antegrade modular pancreatosplenectomy
Shichang CUI ; Xiufeng LI ; Yang LIU ; Jiang WANG ; Jianxing YU ; Guang HAO ; Qidong SUN
International Journal of Surgery 2019;46(1):30-36,封4
Objective The application of nano-carbon tracer technique in radical antegrade modular pancreatosplenectomy (RAMPS) to treat malignant tumors of pancreatic body and tail.To investigate whether radical anterograde modulization of pancreatic body and tail combined with nano-carbon tracer technique is more beneficial to the prognosis of patients.Methods From January 2014 to September 2018,a retrospective analysis was performed in 48 patients in Linyi Central Hospital,all patients underwent RAMPS,all of whom were pathologically proved to be pancreatic carcinoma of the body and tail.Based on whether the nano-carbon lymph node tracer was performed during the operation,the patients were divided into two groups:nano-carbon group (nano-carbon lymph node tracing) and conventional operation group (no nano-carbon lymph node tracer).The differences between the two groups were analyzed,including operative time,intraoperative blood loss,postoperative complications (pancreatic fistula),postoperative hospitalization time,postoperative pathological lymph node status (number of dissection,number of positive lymph nodes,the positive rate of lymph node black staining in nano-carbon group) and survival time after operation.The measurement data were expressed as mean ± standard deviation (Mean ± SD),t-test were used for comparison among groups;Chi-square test was used for comparison of counting data,and Kaplan-Meier test was used for comparison of survival rate.Results There was no significant difference in the time of operation [(4.45 ± 0.59) h vs (4.41 ±0.65) h],the amount of blood lost during operation [(447.39 ± 109.51) ml vs (434.8 ± 76.38) ml] and the time of hospitalization after operation [(16.52 ± 4.12) d vs (16.56 ±2.92) d] between the two groups (P>0.05).There were 1 case of pancreatic fistula in the nano-carbon group and 2 cases of pancreatic fistula in the convertional operation group,but the difference was not statistically significant (P =0.55).The number of lymph nodes dissected and positive lymph nodes in nano-carbon group were significantly higher than those in conventional operation group [(18.26 ± 2.49) vs (12.16 ± 2.19);(5.52 ± 1.50) vs (3.32 ± 0.85).The difference was statistically significant (P < 0.05).The positive rate of lymph nodes in black stained lymph nodes (38.10%,96/252) was significantly higher than that in non-stained lymph nodes (18.45%,31/168),and the difference was statistically significant (P < 0.05).The average survival time in the nano-carbon group [(25.48 ± 11.74) months] was significantly longer than that in the conventional operation group [(15.80 ± 11.64) months],and the difference was statistically significant (P < 0.05).Conclusions It is safe,effective and feasible to treat malignant tumors of pancreatic body and tail by RAMPS combined with nano-carbon tracer technique.The positive rate of lymph node dissection and the detection rate of total lymph nodes are increased,and the prognosis of patients is improved,to improve the survival time of patients after operation is improved.
7.Design, synthesis and biological application of affinity-based small molecular probe for Hsp90 endoplasmic reticulum paralogue of Grp94
Anping GUO ; Fen JIANG ; Xiaoli XU ; Qidong YOU ; Yuyan LI
Journal of China Pharmaceutical University 2019;50(2):161-167
Glucose-regulated protein 94(Grp94), an endoplasmic reticulum resident Hsp90 paralog, has a limited set of client proteins. Selective inhibition of Grp94 has emerged as a new direction for the development of drugs targeting the Hsp90 chaperone system. Now Grp94-Probe, an affinity-based probe of Grp94, was designed and synthesized based on DDO-5813, a most potent Grp94-selective inhibitor we found previously. Using fluorescence polarization(FP)assay and double staining assay with ER-Red in cells, we confirmed the binding of Grp94-Probe with ER Grp94. The FR results showed that the probe exhibited high affinity for Grp94N(EC50=117. 9 nmol/L)without exhibiting obvious Hsp90α inhibition, Moreover, as a fluorescence probe molecule, Grp94-Probe could better distinguish the inhibitory activity of compounds for Grp94N. The results of fluorescence analysis in cells showed that Grp94-Probe could co-stain with ER-Red in the endoplasmic reticulum, and the fluorescence did not decay rapidly with time after 4 h of staining, which further indicated the binding of Grp94-Probe with Grp94 in cells. This Grp94 selective probe can be further used for biology evaluation of Grp94 inhibitor and exploration of Grp94 biological functions.
8.MicroRNA-34a participates in lipopolysaccharide mediated sepsis related renal function impairment via Kruppel-like factor 4
Qidong JIANG ; Changxue WU ; Qiong ZHANG
Chinese Critical Care Medicine 2018;30(4):351-354
Objective To investigate whether microRNA-34a (miR-34a) participates in lipopolysaccharide (LPS) mediated sepsis related renal function impairment via Kruppel-like factor 4 (KLF4). Methods Thirty healthy male Sprague-Dawley (SD) rats, weighing 180-200 g, were randomly divided into two groups: control group and model group, with 15 rats in each group. The SD rats from model group were injected with LPS 7.5 mg/kg to induce sepsis related renal function impairment model, the SD rats from control group were injected with normal saline. The serum creatinine concentration (SCr) and blood urine nitrogen (BUN) content was detected by multifunction biochemical analyzer; the morphological changes of renal tissue were observed by hematoxylin and eosin stain (HE) staining; the expression of miR-34a and KLF4 gene in plasma and renal tissue were detected by real-time quantitative reverse transcriptase polymerase chain reaction (qRT-PCR); the protein expression of KLF4 in renal tissue was detected by Western Blot; the target gene of miR-34a was verified by double luciferase reporter gene analysis. Results Compared with control group, inflammatory cell infiltration in renal tissue was increased in model group, the SCr and BUN were significantly increased [SCr (μmol/L): 142.5±10.6 vs. 46.4±5.6, BUN (mmol/L): 31.6±6.2 vs. 8.5±1.2, both P < 0.01], the gene expression of miR-34 in plasma and renal tissue were significantly increased (2 -ΔΔCt: 2.26±0.11 vs. 1.14±0.05 in plasma, 4.23±0.12 vs. 1.12±0.04 in renal tissue, both P < 0.01), the gene and protein expressions of KLF4 were significantly decreased [KLF4 gene (2 -ΔΔCt): 0.52±0.03 vs. 1.21±0.06, KLF4 protein (A value): 0.72±0.03 vs. 1.05±0.04, both P < 0.01], which indicated that kidney injury occurred in rats. Pearson correlation analysis showed that plasma miR-34a was positively correlated with SCr and BUN (r value were 0.678, 0.721, respectively, both P < 0.05). Double luciferase reporter assay confirmed that KLF4 was the target gene of miR-34a. Conclusion The miR-34a participates in LPS mediated sepsis related renal function impairment via KLF4.
9.Design, synthesis and anti-tumor activity of novel 5-amino-2-(benzylthio) thia-zole-4-carboxamide derivatives
Lu WANG ; Qidong YOU ; Zhengyu JIANG
Journal of China Pharmaceutical University 2017;48(1):16-22
A series of 5-amino-2-( benzylthio ) thiazole-4-carboxamide derivatives were designed and synthesized to discover novel compounds with anti-tumor activity. Compounds DDO-5401-DDO-5416 were synthesized using 2-amino-2-cyanoacetamide as the start material. The structures of the synthesized compounds were confirmed by IR, 1 H NMR and ESI-MS. The in vitro anti-tumor activities of the synthesized compounds were determined by MTT assay in HCT116 , HepG2 , A549 , MDA-MB-231 and MCF-7 cell lines. Target compounds showed good anti-tumor activity especially in A549 cell line. SAR study showed that electron donating groups were more favorable than electron absorption ones. Compound DDO-5413 exhibited noteworthy activity in MDA-MB-231 and MCF-7 cell lines with IC50 value lower than the positive reference dasatinib. It suggested that DDO-5413 might be the candidate for further investigation.
10.Effects of Continuous Renal Replacement Therapy Combined with Different Doses of Xuebijing Injection on Sepsis Patients with Acute Kidney Injury
Qidong JIANG ; Xuemei ZHANG ; Changxue WU
China Pharmacy 2017;28(8):1087-1091
OBJECTIVE:To observe effect and safety of continuous renal replacement therapy (CRRT) combined with differ ent doses of xuebijing sepsis patients with acute kidney injury (AKI).METHODS:One hundred and four patients diagnosed as sepsis complicated with AKI were collected from ICU of our hospital during Jun.2012 to Aug.2015.They were divided into small-dose group,medium-dose group,large-dose group and control group according to random number table,with 26 cases in each group.Four groups received routine treatment.Small-dose group was given Xuebijing injection 50 mL added into 0.9% Sodium chlo ride injection (NS) 100 mL,ivgtt,bid;medium-dose group was given Xuebijing injection 100 mL added into NS 100 mL,ivgtt,bid;large-dose group was given Xuebijing injection 100 mL added into NS 100 mL,ivgtt,qid.All patients were treated for 1 week.The levels of IL-6,TNF-α and hs-CRP were observed in 4 groups before and after treatment;renal function indexes as BUN,SCr and CysC,blood coagulation function indexes as PT,APTT and Fib were also observed as well as APACHE Ⅱ score and Marshall score.The occurrence of ADR were recorded during treatment.RESULTS:Ninety-five cases meeting the criteria were finally included in the study after 9 cases withdrew from the study,and there were 23,24,25,23 cases in small-dose group,medium-dose group,large-dose group and control group,respectively.Before treatment,there was no statistical significance in above indexes among 4 groups (P>0.05).After treatment,the serum levels of IL-6,TNF-α,CRP,PT and APTT,APACHE Ⅱ score and Marshall score in 4 groups were all decreased significantly,while the serum levels of BUN,SCr,CysC and Fib were increased significantly;the improvement of above indexes in small-dose group,medium-dose group and large-dose group were all better than in control group,and the large-dose group was significantly better than the small-dose group and medium-dose group,with statistical significance (P<0.05).There was no statistical signifi cance in the incidence of ADR among 4 groups (P> 0.05).CONCLUSIONS:Large-dose xuebijing combined with CRRT can effectively inhibit inflammatory reaction in sepsis patients with AKI,improves renal function and coagulation function,and dose not increase the risk of ADR.

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