British Journal of Pharmacology最新文献

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Network medicine and systems pharmacology approaches to predicting adverse drug effects 预测药物不良反应的网络医学和系统药理学方法
IF 7.3 2区 医学
British Journal of Pharmacology Pub Date : 2024-09-12 DOI: 10.1111/bph.17330
Alessio Funari, Giulia Fiscon, Paola Paci
{"title":"Network medicine and systems pharmacology approaches to predicting adverse drug effects","authors":"Alessio Funari, Giulia Fiscon, Paola Paci","doi":"10.1111/bph.17330","DOIUrl":"https://doi.org/10.1111/bph.17330","url":null,"abstract":"Identifying and understanding the relationships between drug intake and adverse effects that can occur due to inadvertent molecular interactions between drugs and targets is a difficult task, especially considering the numerous variables that can influence the onset of such events. The ability to predict these side effects in advance would help physicians develop strategies to avoid or counteract them. In this article, we review the main computational methods for predicting side effects caused by drug molecules, highlighting their performance, limitations and application cases. Furthermore, we provide an overall view of resources, such as databases and tools, useful for building side effect prediction analyses.","PeriodicalId":9262,"journal":{"name":"British Journal of Pharmacology","volume":null,"pages":null},"PeriodicalIF":7.3,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Progress on the development of Class A GPCR‐biased ligands 开发基于 A 类 GPCR 的配体的进展情况
IF 7.3 2区 医学
British Journal of Pharmacology Pub Date : 2024-09-12 DOI: 10.1111/bph.17301
Paula Morales, Magdalena M. Scharf, Marcel Bermudez, Attila Egyed, Rafael Franco, Olivia K. Hansen, Nadine Jagerovic, Jan Jakubík, György M. Keserű, Dóra Judit Kiss, Pawel Kozielewicz, Olav Larsen, Maria Majellaro, Ana Mallo‐Abreu, Gemma Navarro, Rubén Prieto‐Díaz, Mette M. Rosenkilde, Eddy Sotelo, Holger Stark, Tobias Werner, Laura M. Wingler
{"title":"Progress on the development of Class A GPCR‐biased ligands","authors":"Paula Morales, Magdalena M. Scharf, Marcel Bermudez, Attila Egyed, Rafael Franco, Olivia K. Hansen, Nadine Jagerovic, Jan Jakubík, György M. Keserű, Dóra Judit Kiss, Pawel Kozielewicz, Olav Larsen, Maria Majellaro, Ana Mallo‐Abreu, Gemma Navarro, Rubén Prieto‐Díaz, Mette M. Rosenkilde, Eddy Sotelo, Holger Stark, Tobias Werner, Laura M. Wingler","doi":"10.1111/bph.17301","DOIUrl":"https://doi.org/10.1111/bph.17301","url":null,"abstract":"Class A G protein‐coupled receptors (GPCRs) continue to garner interest for their essential roles in cell signalling and their importance as drug targets. Although numerous drugs in the clinic target these receptors, over 60% GPCRs remain unexploited. Moreover, the adverse effects triggered by the available unbiased GPCR modulators, limit their use and therapeutic value. In this context, the elucidation of biased signalling has opened up new pharmacological avenues holding promise for safer therapeutics. Functionally selective ligands favour receptor conformations facilitating the recruitment of specific effectors and the modulation of the associated pathways. This review surveys the current drug discovery landscape of GPCR‐biased modulators with a focus on recent advances. Understanding the biological effects of this preferential coupling is at different stages depending on the Class A GPCR family. Therefore, with a focus on individual GPCR families, we present a compilation of the functionally selective modulators reported over the past few years. In doing so, we dissect their therapeutic relevance, molecular determinants and potential clinical applications.","PeriodicalId":9262,"journal":{"name":"British Journal of Pharmacology","volume":null,"pages":null},"PeriodicalIF":7.3,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An adenosinergic positive feedback loop extends pharmacological cardioprotection duration 腺苷能正反馈环路延长了药物心脏保护的持续时间
IF 7.3 2区 医学
British Journal of Pharmacology Pub Date : 2024-09-11 DOI: 10.1111/bph.17331
Gerald Wölkart, Simon Gissing, Heike Stessel, Erin K. Fassett, Burkhard Klösch, Robert W. Greene, Bernd Mayer, John T. Fassett
{"title":"An adenosinergic positive feedback loop extends pharmacological cardioprotection duration","authors":"Gerald Wölkart, Simon Gissing, Heike Stessel, Erin K. Fassett, Burkhard Klösch, Robert W. Greene, Bernd Mayer, John T. Fassett","doi":"10.1111/bph.17331","DOIUrl":"https://doi.org/10.1111/bph.17331","url":null,"abstract":"Background and PurposeAdenosine receptor activation induces delayed, sustained cardioprotection against ischaemia–reperfusion (IR) injury (24–72 h), but the mechanisms underlying extended cardioprotection duration remain unresolved. We hypothesized that a positive feedback loop involving adenosine receptor‐induced proteasomal degradation of adenosine kinase (ADK) and decreased myocardial adenosine metabolism extends the duration of cardioprotection.Experimental ApproachMice were administered an ADK inhibitor, ABT‐702, to induce endogenous adenosine signalling. Cardiac ADK protein and mRNA levels were analysed 24–120 h later. Theophylline or bortezomib was administered 24 h after ABT‐702 to examine the late roles of adenosine receptors or proteasomal activity, respectively, in ADK expression and cardioprotection at 72 h. Coronary flow and IR tolerance were analysed by Langendorff technique. The potential for continuous adenosinergic cardioprotection was examined using heterozygous, cardiac‐specific ADK KO (cADK<jats:sup>+/−</jats:sup>) mice. Cardiac ADK expression was also examined after A<jats:sub>1</jats:sub> or A<jats:sub>3</jats:sub> receptor agonist, phenylephrine, lipopolysaccharide or sildenafil administration.Key resultsABT‐702 treatment decreased ADK protein content and provided cardioprotection from 24 to 72 h. ADK mRNA upregulation restored ADK protein after 96–120 h. Adenosine receptor or proteasome inhibition at 24 h reversed ABT‐702‐induced ADK protein deficit and cardioprotection at 72 h. cADK<jats:sup>+/−</jats:sup> hearts exhibited continuous cardioprotection. Diverse preconditioning agents also diminished cardiac ADK protein expression.Conclusion and ImplicationsA positive feedback loop driven by adenosine receptor‐induced ADK degradation and renewed adenosine signalling extends the duration of cardioprotection by ABT‐702 and possibly other preconditioning agents. The therapeutic potential of continuous adenosinergic cardioprotection is demonstrated in cADK<jats:sup>+/−</jats:sup> hearts.","PeriodicalId":9262,"journal":{"name":"British Journal of Pharmacology","volume":null,"pages":null},"PeriodicalIF":7.3,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A p75 neurotrophin receptor‐sparing nerve growth factor protects retinal ganglion cells from neurodegeneration by targeting microglia 一种p75神经营养素受体稀释神经生长因子通过靶向小胶质细胞保护视网膜神经节细胞免于神经退化
IF 7.3 2区 医学
British Journal of Pharmacology Pub Date : 2024-09-10 DOI: 10.1111/bph.17316
Laura Latini, Daniel Souza Monteiro De Araujo, Rosario Amato, Alessio Canovai, Lucia Buccarello, Francesco De Logu, Elena Novelli, Anastasiia Vlasiuk, Francesca Malerba, Ivan Arisi, Rita Florio, Hiroki Asari, Simona Capsoni, Enrica Strettoi, Gino Villetti, Bruno Pietro Imbimbo, Massimo Dal Monte, Romina Nassini, Pierangelo Geppetti, Silvia Marinelli, Antonino Cattaneo
{"title":"A p75 neurotrophin receptor‐sparing nerve growth factor protects retinal ganglion cells from neurodegeneration by targeting microglia","authors":"Laura Latini, Daniel Souza Monteiro De Araujo, Rosario Amato, Alessio Canovai, Lucia Buccarello, Francesco De Logu, Elena Novelli, Anastasiia Vlasiuk, Francesca Malerba, Ivan Arisi, Rita Florio, Hiroki Asari, Simona Capsoni, Enrica Strettoi, Gino Villetti, Bruno Pietro Imbimbo, Massimo Dal Monte, Romina Nassini, Pierangelo Geppetti, Silvia Marinelli, Antonino Cattaneo","doi":"10.1111/bph.17316","DOIUrl":"https://doi.org/10.1111/bph.17316","url":null,"abstract":"Background and PurposeRetinal ganglion cells (RGCs) are the output stage of retinal information processing, via their axons forming the optic nerve (ON). ON damage leads to axonal degeneration and death of RGCs, and results in vision impairment. Nerve growth factor (NGF) signalling is crucial for RGC operations and visual functions. Here, we investigate a new neuroprotective mechanism of a novel therapeutic candidate, a p75‐less, TrkA‐biased NGF agonist (hNGFp) in rat RGC degeneration, in comparison with wild type human NGF (hNGFwt).Experimental ApproachBoth neonate and adult rats, whether subjected or not to ON lesion, were treated with intravitreal injections or eye drops containing either hNGFp or hNGFwt. Different doses of the drugs were administered at days 1, 4 or 7 after injury for a maximum of 10 days, when immunofluorescence, electrophysiology, cellular morphology, cytokine array and behaviour studies were carried out. Pharmacokinetic evaluation was performed on rabbits treated with hNGFp ocular drops.ResultshNGFp exerted a potent RGC neuroprotection by acting on microglia cells, and outperformed hNGFwt in rescuing RGC degeneration and reducing inflammatory molecules. Delayed use of hNGFp after ON lesion resulted in better outcomes compared with treatment with hNGFwt. Moreover, hNGFp‐based ocular drops were less algogenic than hNGFwt. Pharmacokinetic measurements revealed that biologically relevant quantities of hNGFp were found in the rabbit retina.Conclusions and ImplicationsOur data point to microglia as a new cell target through which NGF‐induced TrkA signalling exerts neuroprotection of the RGC, emphasizing hNGFp as a powerful treatment to tackle retinal degeneration.","PeriodicalId":9262,"journal":{"name":"British Journal of Pharmacology","volume":null,"pages":null},"PeriodicalIF":7.3,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Serotonergic transmission plays differentiated roles in the rapid and sustained antidepressant-like effects of ketamine. 羟色胺能传导在氯胺酮快速和持续的抗抑郁样作用中发挥着不同的作用。
IF 6.8 2区 医学
British Journal of Pharmacology Pub Date : 2024-09-05 DOI: 10.1111/bph.17324
Yong-Yu Yin, Jiao-Zhao Yan, Qian-Qian Wei, Si-Rui Sun, Yu-Qiang Ding, Li-Ming Zhang, Yun-Feng Li
{"title":"Serotonergic transmission plays differentiated roles in the rapid and sustained antidepressant-like effects of ketamine.","authors":"Yong-Yu Yin, Jiao-Zhao Yan, Qian-Qian Wei, Si-Rui Sun, Yu-Qiang Ding, Li-Ming Zhang, Yun-Feng Li","doi":"10.1111/bph.17324","DOIUrl":"https://doi.org/10.1111/bph.17324","url":null,"abstract":"<p><strong>Background and purpose: </strong>The emerging antidepressant effects of ketamine have inspired tremendous interest in its underlying neurobiological mechanisms, although the involvement of 5-HT in the antidepressant effects of ketamine remains unclear.</p><p><strong>Experimental approach: </strong>The chronic restraint stress procedure was performed to induce depression-like behaviours in mice. OFT, FST, TST, and NSFT tests were used to evaluate the antidepressant-like effects of ketamine. Tph2 knockout or depletion of 5-HT by PCPA and 5,7-DHT were used to manipulate the brain 5-HT system. ELISA and fibre photometry recordings were used to measure extracellular 5-HT levels in the brain.</p><p><strong>Key results: </strong>60 min after injection, ketamine (10 mg·kg<sup>-1</sup>, i.p.) produced rapid antidepressant-like effects and increased brain 5-HT levels. After 24 h, ketamine significantly reduced immobility time in TST and FST tests and increased brain 5-HT levels, as measured by ELISA and fibre photometry recordings. The sustained (24 h) but not rapid (60 min) antidepressant-like effects of ketamine were abrogated by PCPA and 5,7-DHT, or by Tph2 knockout. Importantly, NBQX (10 mg·kg<sup>-1</sup>, i.p.), an AMPA receptor antagonist, significantly inhibited the effect of ketamine on brain 5-HT levels and abolished the sustained antidepressant-like effects of ketamine in naïve or CRS-treated mice.</p><p><strong>Conclusion and implications: </strong>This study confirms the requirement of serotonergic neurotransmission for the sustained antidepressant-like effects of ketamine, which appears to involve AMPA receptors, and provides avenues to search for antidepressant pharmacological targets.</p>","PeriodicalId":9262,"journal":{"name":"British Journal of Pharmacology","volume":null,"pages":null},"PeriodicalIF":6.8,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142139367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Schwann cell transient receptor potential ankyrin 1 (TRPA1) ortholog in zebrafish larvae mediates chemotherapy-induced peripheral neuropathy. 斑马鱼幼体中的许旺细胞瞬时受体电位蛋白1(TRPA1)同源物介导化疗引起的周围神经病变
IF 6.8 2区 医学
British Journal of Pharmacology Pub Date : 2024-09-05 DOI: 10.1111/bph.17318
Elisa Bellantoni, Matilde Marini, Martina Chieca, Chiara Gabellini, Erica Lucia Crapanzano, Daniel Souza Monteiro de Araujo, Daniele Nosi, Lorenzo Roschi, Lorenzo Landini, Gaetano De Siena, Pasquale Pensieri, Alessandra Mastricci, Irene Scuffi, Pierangelo Geppetti, Romina Nassini, Francesco De Logu
{"title":"Schwann cell transient receptor potential ankyrin 1 (TRPA1) ortholog in zebrafish larvae mediates chemotherapy-induced peripheral neuropathy.","authors":"Elisa Bellantoni, Matilde Marini, Martina Chieca, Chiara Gabellini, Erica Lucia Crapanzano, Daniel Souza Monteiro de Araujo, Daniele Nosi, Lorenzo Roschi, Lorenzo Landini, Gaetano De Siena, Pasquale Pensieri, Alessandra Mastricci, Irene Scuffi, Pierangelo Geppetti, Romina Nassini, Francesco De Logu","doi":"10.1111/bph.17318","DOIUrl":"https://doi.org/10.1111/bph.17318","url":null,"abstract":"<p><strong>Background and purpose: </strong>The oxidant sensor transient receptor potential ankyrin 1 (TRPA1) channel expressed by Schwann cells (SCs) has recently been implicated in several models of neuropathic pain in rodents. Here we investigate whether the pro-algesic function of Schwann cell TRPA1 is not limited to mammals by exploring the role of TRPA1 in a model of chemotherapy-induced peripheral neuropathy (CIPN) in zebrafish larvae.</p><p><strong>Experimental approach: </strong>We used zebrafish larvae and a mouse model to test oxaliplatin-evoked nociceptive behaviours. We also performed a TRPA1 selective silencing in Schwann cells both in zebrafish larvae and mice to study their contribution in oxaliplatin-induced CIPN model.</p><p><strong>Key results: </strong>We found that zebrafish larvae and zebrafish TRPA1 (zTRPA1)-transfected HEK293T cells respond to reactive oxygen species (ROS) with nociceptive behaviours and intracellular calcium increases, respectively. TRPA1 was found to be co-expressed with the Schwann cell marker, SOX10, in zebrafish larvae. Oxaliplatin caused nociceptive behaviours in zebrafish larvae that were attenuated by a TRPA1 antagonist and a ROS scavenger. Oxaliplatin failed to produce mechanical allodynia in mice with Schwann cell TRPA1 selective silencing (Plp1<sup>+</sup>-Trpa1 mice). Comparable results were observed in zebrafish larvae where TRPA1 selective silencing in Schwann cells, using the specific Schwann cell promoter myelin basic protein (MBP), attenuated oxaliplatin-evoked nociceptive behaviours.</p><p><strong>Conclusion and implications: </strong>These results indicate that the contribution of the oxidative stress/Schwann cell/TRPA1 pro-allodynic pathway to neuropathic pain models seems to be conserved across the animal kingdom.</p>","PeriodicalId":9262,"journal":{"name":"British Journal of Pharmacology","volume":null,"pages":null},"PeriodicalIF":6.8,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142139339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Deficiency of 5-HT2B receptors alleviates atherosclerosis by regulating macrophage phenotype through inhibiting interferon signalling. 缺乏 5-HT2B 受体可通过抑制干扰素信号调节巨噬细胞表型,从而缓解动脉粥样硬化。
IF 6.8 2区 医学
British Journal of Pharmacology Pub Date : 2024-09-04 DOI: 10.1111/bph.17315
Yahan Liu, Zhipeng Wang, Li Fang, Yaohua Xu, Beilei Zhao, Xuya Kang, Yanqing Zhao, Jintao Han, Yan Zhang, Erdan Dong, Nanping Wang
{"title":"Deficiency of 5-HT<sub>2B</sub> receptors alleviates atherosclerosis by regulating macrophage phenotype through inhibiting interferon signalling.","authors":"Yahan Liu, Zhipeng Wang, Li Fang, Yaohua Xu, Beilei Zhao, Xuya Kang, Yanqing Zhao, Jintao Han, Yan Zhang, Erdan Dong, Nanping Wang","doi":"10.1111/bph.17315","DOIUrl":"https://doi.org/10.1111/bph.17315","url":null,"abstract":"<p><strong>Background and purpose: </strong>Elevated levels of 5-HT have been correlated with coronary artery disease and cardiac events, suggesting 5-HT is a potential novel factor in the development of atherosclerotic cardiovascular disease. However, the underlying pathological mechanisms of the 5-HT system in atherosclerosis remain unclear. The 5-HT<sub>2B</sub> receptor (5-HT2BR), which establishes a positive feedback loop with 5-HT, has been identified as a contributor to pathophysiological processes in various vascular disorders. In this study, we investigated the immunological impact of 5-HT2BR in atherosclerosis-prone apolipoprotein E-deficient (ApoE<sup>-/-</sup>) mice.</p><p><strong>Experimental approach: </strong>Plasma levels of 5-HT were measured in mice using an ELISA kit. Atherosclerotic plaque formation, macrophage infiltration and inflammatory signalling were assessed in ApoE<sup>-/-</sup> mice by employing both pharmacological inhibition and genetic deficiency of 5-HT2BR. Inflammasome activation was elucidated using peritoneal macrophages isolated from 5-HT2BR-deficient mice.</p><p><strong>Key results: </strong>An upregulation of 5-HT2BR expression was observed in the aortas of ApoE<sup>-/-</sup> mice, exhibiting a strong correlation with the presence of macrophages in plaques. Atherosclerosis was attenuated in mice through pharmacological inhibition and genetic deficiency of 5-HT2BR. Additionally, a significant reduction in atherosclerotic plaque size was achieved through bone marrow reconstitution with 5-HT2BR-deficient cells. 5-HT2BR-deficient macrophages showed attenuated interferon (IFN) signalling, NLRP3 inflammasome activation, and interleukin-1β release. Moreover, macrophages primed with 5-HT2BR deficiency displayed an anti-inflammatory phenotype.</p><p><strong>Conclusion and implications: </strong>These findings support the hypothesis that 5-HT2BR in macrophages plays a causal role in the development of atherosclerosis, revealing a novel perspective for potential therapeutic strategies in atherosclerosis-related diseases.</p>","PeriodicalId":9262,"journal":{"name":"British Journal of Pharmacology","volume":null,"pages":null},"PeriodicalIF":6.8,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142131897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tert-butylhydroquinone promotes skin flap survival by inhibiting oxidative stress mediated by the Nrf2/HO-1 signalling pathway. 叔丁基对苯二酚通过抑制 Nrf2/HO-1 信号通路介导的氧化应激促进皮瓣存活。
IF 6.8 2区 医学
British Journal of Pharmacology Pub Date : 2024-09-04 DOI: 10.1111/bph.17321
Kaitao Wang, An Wang, Jiapeng Deng, Jialong Yang, Guodong Chen, Qingyu Chen, Minle Ye, Dingsheng Lin
{"title":"Tert-butylhydroquinone promotes skin flap survival by inhibiting oxidative stress mediated by the Nrf2/HO-1 signalling pathway.","authors":"Kaitao Wang, An Wang, Jiapeng Deng, Jialong Yang, Guodong Chen, Qingyu Chen, Minle Ye, Dingsheng Lin","doi":"10.1111/bph.17321","DOIUrl":"https://doi.org/10.1111/bph.17321","url":null,"abstract":"<p><strong>Background and purpose: </strong>Skin flaps are among the most important means of wound repair in clinical settings. However, partial or even total distal necrosis may occur after a flap operation, with severe consequences for both patients and doctors. This study investigated whether tert-butylhydroquinone (TBHQ), a known agonist of the transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2), and an antioxidant, could promote skin flap survival.</p><p><strong>Experimental approach: </strong>McFarlane skin flap models were established in male Sprague-Dawley rats and then randomly divided into control, low-dose TBHQ, and high-dose TBHQ treatment groups. On postoperative day 7, the survival and blood flow of the skin flaps were assessed. Using flap tissue samples, angiogenesis, inflammation, apoptosis, autophagy, and Nrf2/haem oxygenase 1 (HO-1) signalling pathway activity were measured with immunohistochemical techniques and western blotting.</p><p><strong>Key results: </strong>TBHQ dose-dependently stimulated the Nrf2/HO-1 signalling pathway, inducing autophagy through the up-regulation of LC3B and beclin 1 and concurrently suppressing p62 expression. Additionally, TBHQ hindered apoptosis by enhancing Bcl-2 expression while inhibiting the expression of Bax. It suppressed inflammation by inhibiting the expression of interleukin 1β, interleukin 6, and tumour necrosis factor-α and enhanced angiogenesis by promoting the expression of vascular endothelial growth factor.</p><p><strong>Conclusion and implications: </strong>In summary, TBHQ promoted flap survival in rats by up-regulating the Nrf2/HO-1 signalling pathway. As TBHQ is already widely used as a food additive, it could offer an acceptable means of improving clinical outcomes following skin flap surgery in patients.</p>","PeriodicalId":9262,"journal":{"name":"British Journal of Pharmacology","volume":null,"pages":null},"PeriodicalIF":6.8,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142131898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advancing the field of viroporins-Structure, function and pharmacology: IUPHAR Review X. 推进 viroporins 领域--结构、功能和药理学:IUPHAR Review X.
IF 6.8 2区 医学
British Journal of Pharmacology Pub Date : 2024-09-03 DOI: 10.1111/bph.17317
Kira Devantier, Viktoria M S Kjær, Stephen Griffin, Birthe B Kragelund, Mette M Rosenkilde
{"title":"Advancing the field of viroporins-Structure, function and pharmacology: IUPHAR Review X.","authors":"Kira Devantier, Viktoria M S Kjær, Stephen Griffin, Birthe B Kragelund, Mette M Rosenkilde","doi":"10.1111/bph.17317","DOIUrl":"https://doi.org/10.1111/bph.17317","url":null,"abstract":"<p><p>Viroporins possess important potential as antiviral targets due to their critical roles during virus life cycles, spanning from virus entry to egress. Although the antiviral amantadine targets the M2 viroporin of influenza A virus, successful progression of other viroporin inhibitors into clinical use remains challenging. These challenges relate in varying proportions to a lack of reliable full-length 3D-structures, difficulties in functionally characterising individual viroporins, and absence of verifiable direct binding between inhibitor and viroporin. This review offers perspectives to help overcome these challenges. We provide a comprehensive overview of the viroporin family, including their structural and functional features, highlighting the moldability of their energy landscapes and actions. To advance the field, we suggest a list of best practices to aspire towards unambiguous viroporin identification and characterisation, along with considerations of potential pitfalls. Finally, we present current and future scenarios of, and prospects for, viroporin targeting drugs.</p>","PeriodicalId":9262,"journal":{"name":"British Journal of Pharmacology","volume":null,"pages":null},"PeriodicalIF":6.8,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142119022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Targeting RNA with small molecules, from RNA structures to precision medicines: IUPHAR review: 40. 用小分子靶向 RNA,从 RNA 结构到精准药物:IUPHAR review:40.
IF 6.8 2区 医学
British Journal of Pharmacology Pub Date : 2024-09-03 DOI: 10.1111/bph.17308
Yuquan Tong, Jessica L Childs-Disney, Matthew D Disney
{"title":"Targeting RNA with small molecules, from RNA structures to precision medicines: IUPHAR review: 40.","authors":"Yuquan Tong, Jessica L Childs-Disney, Matthew D Disney","doi":"10.1111/bph.17308","DOIUrl":"https://doi.org/10.1111/bph.17308","url":null,"abstract":"<p><p>RNA plays important roles in regulating both health and disease biology in all kingdoms of life. Notably, RNA can form intricate three-dimensional structures, and their biological functions are dependent on these structures. Targeting the structured regions of RNA with small molecules has gained increasing attention over the past decade, because it provides both chemical probes to study fundamental biology processes and lead medicines for diseases with unmet medical needs. Recent advances in RNA structure prediction and determination and RNA biology have accelerated the rational design and development of RNA-targeted small molecules to modulate disease pathology. However, challenges remain in advancing RNA-targeted small molecules towards clinical applications. This review summarizes strategies to study RNA structures, to identify small molecules recognizing these structures, and to augment the functionality of RNA-binding small molecules. We focus on recent advances in developing RNA-targeted small molecules as potential therapeutics in a variety of diseases, encompassing different modes of actions and targeting strategies. Furthermore, we present the current gaps between early-stage discovery of RNA-binding small molecules and their clinical applications, as well as a roadmap to overcome these challenges in the near future.</p>","PeriodicalId":9262,"journal":{"name":"British Journal of Pharmacology","volume":null,"pages":null},"PeriodicalIF":6.8,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142119023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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