{"title":"2-Methoxy-6-acetyl-7-methyljuglone, a natural naphthoquinone from Polygonum cuspidatum, protects against 6-OHDA-induced neurotoxicity in PC12 cells","authors":"Yuanfeng Fu, Weifeng Xu, Dongmeng Liu, Jiaolin Bao, Ren-Bo Ding","doi":"10.3329/bjp.v21i1.86818","DOIUrl":"https://doi.org/10.3329/bjp.v21i1.86818","url":null,"abstract":"This study investigated the neuroprotective effects of 2-methoxy-6-acetyl-7-methyljuglone (MAM, a compound isolated from Polygonum cuspidatum) in 6-hydroxydopamine (6-OHDA)-injuried pheochromocytoma (PC12) cells. 6-OHDA treatment significantly induced cell death, apoptosis and mitochondrial membrane potential loss. MAM pretreatment significantly rescued PC12 cell viability, inhibited the 6-OHDA-induced apoptosis and depolarization in mitochondrial membrane potential. Results also demonstrated that 6-OHDA significantly induced ERK and NF-κB phosphorylation, while MAM pretreatment markedly reduced the 6-OHDA-elevated ERK and NF-κB phosphorylation levels. This suggested that MAM exerted neuroprotective effects likely by suppressing ERK-related oxidative stress and NF-κB-mediated neuroinflammation, thereby protecting neuronal cells from 6-OHDA-induced apoptosis. Collectively, these results suggested that MAM exerted a neuroprotective effect in 6-OHDA-induced Parkinson’s disease cell model by suppressing ERK and NF-κB-mediated apoptotic mechanisms.","PeriodicalId":8719,"journal":{"name":"Bangladesh Journal of Pharmacology","volume":"21 1","pages":"20-27"},"PeriodicalIF":0.0,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://banglajol.info/index.php/BJP/article/download/86818/57315","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147381882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"1α,25-Dihydroxyvitamin D3 reduces uropathogenic E. coli persistence in bladder epithelial cells by restoring lysosome acidification","authors":"Hao Yin, Xue Yi, Xin Wang","doi":"10.3329/bjp.v20i1.79655","DOIUrl":"https://doi.org/10.3329/bjp.v20i1.79655","url":null,"abstract":"This study aimed to examine the effect of 1α,25-dihydroxyvitamin D3 [1,25(OH)2D3] on the intracellular persistence of uropathogenic Escherichia coli. After establishing a cell infection model and conducting drug intervention, methods such as fluorescent probes, Western blot, and qPCR were used. The results showed that 1,25(OH)2D3 (10 nM) reduced the number of persistent E. coli (at 12 and 24 hours) (P<0.05), enhanced the acidification of intracellular lysosomes (p<0.05), and up-regulated the expression levels of transcription factor binding to IGHM enhancer 3, ATPase H+ transporting V0 subunit C, and ATPase H+ transporting V0 subunit D2 (P<0.05). Therefore, 1,25(OH)2D3 may reduce bacterial persistence by enhancing lysosomal acidification and influencing the expression of these factors. These findings provide ideas for the potential application of 1,25(OH)2D3 in reducing the recurrence rate of infectious diseases.","PeriodicalId":8719,"journal":{"name":"Bangladesh Journal of Pharmacology","volume":"20 1","pages":"8-15"},"PeriodicalIF":0.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://banglajol.info/index.php/BJP/article/download/79655/53118","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147899785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"ML098 enhances intracellular bacterial clearance in bladder epithelial cells by activating Rab7 and promoting lysosomal biogenesis","authors":"Hao Yin, Jiaoli Zhu, Jiamin Yin, Xue Yi, Xin Wang","doi":"10.3329/bjp.v19i4.77475","DOIUrl":"https://doi.org/10.3329/bjp.v19i4.77475","url":null,"abstract":"The aim of this study was to investigate the effect of ML098 on the intra-cellular bacterial count of bladder epithelial cells infected with uropathogenic Escherichia coli. The number of intracellular bacteria were counted after cell lysis present in coated Luria-Bertani agar plates. Lysotracker red was used to detect the numbers of lysosomes in cells. The expression of lysosome associated membrane protein 1 within cells was detected by western blot and q-PCR methods. Rab7 pulldown activation assay was used to detect the expression of intracellular active Rab7. The results showed that ML098 (1 µM) could reduce the number of intracellular bacteria in bladder epithelial cells 6 hours after E. coli infection (p<0.05), increased the number of lysosomes in cells (p<0.05), and increased the expression of intracellular active Rab7 (p<0.05). Therefore, ML098 can promote intracellular bacterial clearance, possibly by increasing the expression of active Rab7 in cells, thereby increasing the number of lysosomes in bladder epithelial cells.","PeriodicalId":8719,"journal":{"name":"Bangladesh Journal of Pharmacology","volume":"19 4","pages":"107-113"},"PeriodicalIF":0.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://banglajol.info/index.php/BJP/article/download/77475/52383","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147904058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yo Zhang, Hongmei Zhang, Shanshan Yang, Xiu-Feng Gao, Wenhao Guo
{"title":"Prednisone inhibits osteosarcoma cell by regulating the Wnt/β-catenin signaling pathway","authors":"Yo Zhang, Hongmei Zhang, Shanshan Yang, Xiu-Feng Gao, Wenhao Guo","doi":"10.3329/bjp.v19i3.76379","DOIUrl":"https://doi.org/10.3329/bjp.v19i3.76379","url":null,"abstract":"Prednisone, a synthetic glucocorticoid, possesses a moderate duration of action in the human body. To investigate the effect of prednisone on osteosarcoma cells in vitro, CCK8, wound healing, Transwell assays, flow-cytometry, western blot, and ELISA were used to measure cell proliferation, cell migration, cell invasion, cell cycle, cell apoptosis, and the key proteins in Wnt/β-catenin pathway. The results showed prednisone could inhibit the proliferation in osteosarcoma cells and exhibit lower proliferation toxicity towards normal bone cells compared to cisplatin by 17.5% (p<0.001). Cell apoptosis was increased by 6.6 and 7.4%, cell migration was decreased to 62.6 and –23.9%, G0/G1 phase cells were increased by 33.0 and 17.9%, and S phase cells were reduced by 29.6 and 18.0% (all p<0.001) in Mg63 and Saos-2 cells respectively after prednisone treatment. The expressions of β-catenin, cMYC, cyclin D1, and MMP7 were also reduced. In conclusion, prednisone inhibits osteosarcoma cells by regulating the Wnt/β-catenin signaling pathway.","PeriodicalId":8719,"journal":{"name":"Bangladesh Journal of Pharmacology","volume":"19 3","pages":"73-80"},"PeriodicalIF":0.0,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://banglajol.info/index.php/BJP/article/download/76379/51132","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147889628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sijie Liu, Jiayi Zhu, Hao Huang, Jiaxiang Xu, Biao Zhang, Yi Luo
{"title":"Catalpol alleviates the lipopolysaccharide-induced inflammatory response of BV2 cells","authors":"Sijie Liu, Jiayi Zhu, Hao Huang, Jiaxiang Xu, Biao Zhang, Yi Luo","doi":"10.3329/bjp.v19i3.76556","DOIUrl":"https://doi.org/10.3329/bjp.v19i3.76556","url":null,"abstract":"This study aimed to investigate the effect of catalpol on the inflammatory response of murine microglial cell line (BV2 cells) induced by lipopolysaccharide. Cell proliferation activity was detected by CCK-8 assay. The morphology of BV2 was observed by an optical microscope. The inflammatory factors interleukin-1β (IL-1β), IL-6, and tumor necrosis factor-α (TNF-α) were detected by enzyme‐linked immunosorbent assay (ELISA). Reactive oxygen species (ROS) were detected by flow cytometry. Induced nitric oxide synthase (iNOS) level was detected by immunofluorescence. The results showed that 5 μg/mL catalpol did not effect the proliferation of BV2 cells, while 10 μg/mL catalpol significantly decreased the viability of BV2 cells. Then the experiment was carried out with 5 μg/mL catalpol. Catalpol can improve the morphology of lipopolysaccharide-induced BV2 cells, decrease the level of inflammatory factors, and reduce the production of iNOS and ROS. Therefore, catalpol can inhibit the lipopolysaccharide-induced activation of BV2 cells and has anti-inflammatory effects.","PeriodicalId":8719,"journal":{"name":"Bangladesh Journal of Pharmacology","volume":"19 3","pages":"88-94"},"PeriodicalIF":0.0,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://banglajol.info/index.php/BJP/article/download/76556/51134","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147910207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaofang Wang, Chenquan Tang, Yi Jiang, Xue Yi, Enchao Zhou
{"title":"Total flavonoids of Abelmoschus manihot ameliorate lipid deposition in HK-2 cells by inhibiting fatty acid uptake mediated by CD36","authors":"Xiaofang Wang, Chenquan Tang, Yi Jiang, Xue Yi, Enchao Zhou","doi":"10.3329/bjp.v19i3.77820","DOIUrl":"https://doi.org/10.3329/bjp.v19i3.77820","url":null,"abstract":"This study aimed to explore the mechanism by which total flavones of Abelmoschl manihot reduce intracellular lipid deposition in HK-2 cells (Human renal cortex proximal tubule epithelial cells) and thus reduce cell apoptosis. Palmitic acid was employed to induce intracellular lipid deposition. The cell proliferation activity was detected by the CCK-8 assay. The cell death status was evaluated by flow cytometry. The intracellular lipid deposition was observed by oil red O and BODIPY probe staining. The expression level of CD36 in HK-2 cells was determined by western blot. The results indicated that total flavones of A. manihot could inhibit the expression of CD36 in HK-2 cells in a dose-dependent manner and reduce lipid deposition. Consequently, total flavones of A. manihot protect HK-2 cells by reducing intracellular lipid deposition by inhibiting CD36-mediated fatty acid uptake.","PeriodicalId":8719,"journal":{"name":"Bangladesh Journal of Pharmacology","volume":"19 3","pages":"95-102"},"PeriodicalIF":0.0,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://banglajol.info/index.php/BJP/article/download/77820/51135","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147916181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ginsenoside Rb1 ameliorates neutrophil extracellular traps-induced vascular endothelial damage by suppressing apoptosis","authors":"Biao Zhang, Junkai Zhao, Jianing Yin, J Chen, Lingqi Xu","doi":"10.3329/bjp.v19i3.76490","DOIUrl":"https://doi.org/10.3329/bjp.v19i3.76490","url":null,"abstract":"The study aims to investigate the effect of ginsenoside Rb1 on improving neutrophil extracellular traps-induced vascular endothelial damage. The CCK8 assay was used to evaluate the impact of ginsenoside Rb1 on cell activity. Flow cytometry was used to assess cell apoptosis. E-cadherin was used to determine the damage to endothelial cells, and caspase 3 was used to detect apoptosis-related proteins. Ginsenoside Rb1 (100 μmol/L) could significantly increase the cell viability (p<0.05). At this concentration, the damage caused by neutrophil extracellular traps to human umbilical vein endothelial cells could be reversed (p<0.05). Ginsenoside Rb1 (100 μmol/L) could significantly inhibit the apoptosis and the expression of caspase3 protein caused by neutrophil extracellular traps (p<0.05). Ginsenoside Rb1 can reduce vascular endothelial injury induced by neutrophil extracellular traps, ginsenoside Rb1 protects vascular endothelium by inhibiting cell apoptosis.","PeriodicalId":8719,"journal":{"name":"Bangladesh Journal of Pharmacology","volume":"19 3","pages":"81-87"},"PeriodicalIF":0.0,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://banglajol.info/index.php/BJP/article/download/76490/51133","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147908854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"RU.521 protects against neutrophil extracellular traps-induced vascular endothelial injury by inhibiting cGAS/STING pathway","authors":"Biao Zhang, Zaojun Fang, Ying Lin, Qian Wu, J Chen","doi":"10.3329/bjp.v19i2.72930","DOIUrl":"https://doi.org/10.3329/bjp.v19i2.72930","url":null,"abstract":"This study aims to investigate the effect of RU.521 on improving vascular endothelial injury in 14 acute lung injury patients. Serum myeloperoxidase, double-stranded DNA (dsDNA), IFN-β, and TNF-α levels of patients were detected by ELISA. Neutrophil extracellular traps were used to stimulate human venous endothelial cells (HUVEC). cGAS/STING pathway protein was detected by western blot. The protective effect of RU.521 on HUVEC was evaluated by CCK-8. The effects of RU.521 on cGAS/STING pathway expression were detected by PCR and western blot. The levels of myeloperoxidase and (dsDNA) in acute lung injury patients were significantly increased (p<0.05). The expression level of IFN-β in acute lung injury patients was significantly increased (p<0.05). The expression of cGAS and STING proteins in HUVEC cells was significantly increased (p<0.05), and the expression of IFN-β was significantly increased (p<0.05). RU.521 can ameliorate vascular endothelial injury. RU.521 inhibited cGAS/SRING mRNA and protein expression (p<0.05). Thus, neutrophil extracellular traps release dsDNA activates the cGAS/STING pathway-induced vascular endothelial injury in acute lung injury patients. RU.521 protects vascular endothelial injury by inhibiting the cGAS/STING pathway.","PeriodicalId":8719,"journal":{"name":"Bangladesh Journal of Pharmacology","volume":"19 2","pages":"59-64"},"PeriodicalIF":0.0,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://banglajol.info/index.php/BJP/article/download/72930/48955","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147891383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mengting Wang, Huixian Chen, Qian Wu, Yan Huang, Yuzhen Zhou
{"title":"Berberine triggers necroptosis of cervical H8 cells by activating receptor-interacting protein kinase 1","authors":"Mengting Wang, Huixian Chen, Qian Wu, Yan Huang, Yuzhen Zhou","doi":"10.3329/bjp.v19i1.70889","DOIUrl":"https://doi.org/10.3329/bjp.v19i1.70889","url":null,"abstract":"This study aims to investigate the effect of berberine on necroptosis in cervical H8 cells. CCK-8 assay was used to assess cell proliferation activity. The expression levels of necroptosis key markers Receptor-interacting protein kinase 1 (RIPK1), MLKL, p-MLKL, and apoptosis-related caspase-8, caspase-3 were analyzed through qRT-PCR, western blot, and immunofluorescence. Mechanistic studies were conducted using the RIPK1 kinase inhibitor necrostatin-1 (Nec-1). The results showed that berberine could inhibit H8 cell proliferation in a time- and dose-dependent manner (p<0.05). It increased the expression of RIPK1 and MLKL (p<0.05), while inhibiting the expression of caspase-8 and caspase-3 (p<0.05). Nec-1 inhibitor decreased the expression of RIPK1 and MLKL after the intervention of berberine (p<0.05). Therefore, berberine induces cervical H8 cell death through the activation of RIPK1-mediated necroptosis.","PeriodicalId":8719,"journal":{"name":"Bangladesh Journal of Pharmacology","volume":"19 1","pages":"13-22"},"PeriodicalIF":0.0,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.banglajol.info/index.php/BJP/article/download/70889/47866","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147906380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ethanol extract of Poria cocos induces apoptosis and differentiation in Neuro-2a neuroblastoma cells","authors":"Xia Jiang, Jie Xie, Zhaotun Hu, Xiaoliang Xiang","doi":"10.3329/bjp.v17i4.57734","DOIUrl":"https://doi.org/10.3329/bjp.v17i4.57734","url":null,"abstract":"Poria cocos is a widely used ingredient in traditional Chinese medicine and dietary supplement. In this study, the effects of the ethanol extract of P. cocos on cell proliferation in Neuro-2a neuroblastoma cells and its possible mechanism of action are investigated. The extract inhibited the growth of Neuro-2a cells in a dose-dependent manner with an IC50 value of 34.6 μg/mL. To further elucidate the mechanism by which the extract acts, transcriptome analysis using high-throughput Illumina RNA-seq technology was performed. Transcriptome analysis revealed that the cell cycle as the potential primary target pathway of the extract in Neuro-2a cells. Flow cytometry analysis confirmed that the extract induced cell cycle arrest at G1 phase. Furthermore, the extract also induced apoptosis in Neuro-2a cells. Notably, it was found that Neuro-2a cells exhibited morphological features of differentiation when treated with the extract. This study suggests that P. cocos may be a potential candidate therapeutic agent in combating neuroblastoma.","PeriodicalId":8719,"journal":{"name":"Bangladesh Journal of Pharmacology","volume":"17 4","pages":"105-113"},"PeriodicalIF":0.0,"publicationDate":"2022-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://banglajol.info/index.php/BJP/article/download/57734/42836","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147908716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}