Biochemical pharmacology最新文献_第2页

ITFG2 as a NEDD4-2 inhibitor: Preserving calcium homeostasis to prevent myocardial ischemic injury ITFG2 作为一种 NEDD4-2 抑制剂：保护钙稳态以防止心肌缺血损伤

IF 5.3 2区医学

Biochemical pharmacology Pub Date : 2024-10-28 DOI: 10.1016/j.bcp.2024.116597

{"title":"ITFG2 as a NEDD4-2 inhibitor: Preserving calcium homeostasis to prevent myocardial ischemic injury","authors":"","doi":"10.1016/j.bcp.2024.116597","DOIUrl":"10.1016/j.bcp.2024.116597","url":null,"abstract":"<div><div>This study aimed to investigate the role of ITFG2, a protein highly expressed in cardiac tissues, in myocardial ischemic injury and its potential interactions with NEDD4-2. An in vivo myocardial infarction (MI) model was induced in mice via left anterior descending artery ligation, and ITFG2 expression was modulated using adeno-associated virus AAV9 vectors. Echocardiography was used to assess cardiac function, and primary mouse cardiomyocytes were cultured and subjected to hypoxia. ITFG2 expression was found to be significantly reduced following MI and in hypoxia-treated neonatal cardiomyocytes. Overexpression of ITFG2 improved cardiac contractility, reduced apoptosis, and stabilized calcium levels by inhibiting NEDD4-2-mediated ubiquitination of SERCA2a. Conversely, ITFG2 knockdown exacerbated calcium overload and cardiac dysfunction. Mechanistically, ITFG2 binds to NEDD4-2, decreasing its interaction with SERCA2a and preventing SERCA2a degradation. These findings suggest that ITFG2 acts as a critical inhibitor of NEDD4-2, preserving SERCA2a function and maintaining calcium homeostasis in cardiomyocytes under ischemic conditions. Therefore, ITFG2 may represent a potential therapeutic target for preventing myocardial ischemic injury and improving outcomes in MI patients.</div></div>","PeriodicalId":8806,"journal":{"name":"Biochemical pharmacology","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142543404","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

Caveolin-1 ameliorates hepatic injury in non-alcoholic fatty liver disease by inhibiting ferroptosis via the NOX4/ROS/GPX4 pathway Caveolin-1通过NOX4/ROS/GPX4途径抑制铁跃迁，从而改善非酒精性脂肪肝的肝损伤。

IF 5.3 2区医学

Biochemical pharmacology Pub Date : 2024-10-26 DOI: 10.1016/j.bcp.2024.116594

{"title":"Caveolin-1 ameliorates hepatic injury in non-alcoholic fatty liver disease by inhibiting ferroptosis via the NOX4/ROS/GPX4 pathway","authors":"","doi":"10.1016/j.bcp.2024.116594","DOIUrl":"10.1016/j.bcp.2024.116594","url":null,"abstract":"<div><div>Nonalcoholic fatty liver disease (NAFLD) is the most prevalent chronic liver disease globally, with a complex and contentious pathogenesis. Caveolin-1 (CAV1) is an important regulator of liver function and can mitigate liver injury by scavenging reactive oxygen species (ROS). Evidence suggests that NOX4 is a source of ROS production, that oxidative stress and ferroptosis are closely related, and that both are involved in the onset and progression of NAFLD. However, whether CAV1 attenuates liver injury in NAFLD caused by high-fat diet via the NOX4/ROS/GPX4 pathway remains unclear. An in vivo fatty liver model was established by feeding mice with a high-fat diet for 16 weeks. In addition, an in vitro fatty liver model was established by incubating AML-12 cells with free fatty acids for 24 h using an in vitro culture method. In our study, it was observed that a high-fat diet induces mitochondrial damage and worsens oxidative stress in NAFLD. This diet also hinders GPX4 expression, leading to an escalation of ferroptosis and lipid accumulation. To counteract these effects, intraperitoneal administration of CSD peptide in mice attenuated the high-fat diet-induced liver mitochondrial damage and ferroptosis. Likewise, overexpression of CAV1 resulted in an increase in GPX4 expression and a reduction in levels of ROS-mediated iron metamorphosis, thus mitigating the progression of the disease. However, the effects of CAV1 on GPX4-mediated ferroptosis and lipid deposition could be reversed by CAV1 small interfering RNA (SiRNA). Finally, NOX4 inhibitor (GLX351322) treatment increased CAV1 siRNA-mediated GPX4 expression and decreased the level of ROS-mediated ferroptosis. These findings suggest a potential mechanism underlying the protective role of CAV1 against high-fat diet-induced hepatotoxicity in NAFLD, shedding new light on the interplay between CAV1, GPX4, and ferroptosis in liver pathology.</div></div>","PeriodicalId":8806,"journal":{"name":"Biochemical pharmacology","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142567643","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

Novel strategies to overcome chemoresistance in human glioblastoma 克服人类胶质母细胞瘤化疗抗药性的新策略。

IF 5.3 2区医学

Biochemical pharmacology Pub Date : 2024-10-24 DOI: 10.1016/j.bcp.2024.116588

{"title":"Novel strategies to overcome chemoresistance in human glioblastoma","authors":"","doi":"10.1016/j.bcp.2024.116588","DOIUrl":"10.1016/j.bcp.2024.116588","url":null,"abstract":"<div><div>Temozolomide (TMZ) is currently the first-line chemotherapeutic agent for the treatment of glioblastoma multiforme (GBM). However, the inherent heterogeneity of GBM often results in suboptimal outcomes, particularly due to varying degrees of resistance to TMZ. Over the past several decades, <em>O</em><sup>6</sup>-methylguanine-DNA methyltransferase (MGMT)-mediated DNA repair pathway has been extensively investigated as a target to overcome TMZ resistance. Nonetheless, the combination of small molecule covalent MGMT inhibitors with TMZ and other chemotherapeutic agents has frequently led to adverse clinical effects. Recently, additional mechanisms contributing to TMZ resistance have been identified, including epidermal growth factor receptor (EGFR) mutations, overactivation of intracellular signalling pathways, energy metabolism reprogramming or survival autophagy, and changes in tumor microenvironment (TME). These findings suggest that novel therapeutic strategies targeting these mechanisms hold promise for overcoming TMZ resistance in GBM patients. In this review, we summarize the latest advancements in understanding the mechanisms underlying intrinsic and acquired TMZ resistance. Additionally, we compile various small-molecule compounds with potential to mitigate chemoresistance in GBM. These mechanism-based compounds may enhance the sensitivity of GBM to TMZ and related chemotherapeutic agents, thereby improving overall survival rates in clinical practice.</div></div>","PeriodicalId":8806,"journal":{"name":"Biochemical pharmacology","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493924","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

MNAM enhances Blautia abundance and modulates Th17/Treg balance to alleviate diabetes in T2DM mice MNAM 可提高 Blautia 的丰度并调节 Th17/Treg 的平衡，从而缓解 T2DM 小鼠的糖尿病。

IF 5.3 2区医学

Biochemical pharmacology Pub Date : 2024-10-23 DOI: 10.1016/j.bcp.2024.116593

{"title":"MNAM enhances Blautia abundance and modulates Th17/Treg balance to alleviate diabetes in T2DM mice","authors":"","doi":"10.1016/j.bcp.2024.116593","DOIUrl":"10.1016/j.bcp.2024.116593","url":null,"abstract":"<div><div>This study investigated the therapeutic effects of N<sup>1</sup>-Methylnicotinamide (MNAM), a metabolic derivative, on T2DM mice induced by a high-fat diet and streptozotocin (STZ), focusing on its impact on the gut microbiome and immune modulation. MNAM significantly reduced hyperglycemia and enhanced insulin secretion, effects that were dependent on the presence of gut microbiota. It also mitigated STZ-induced weight loss and improved islet cell morphology, reducing islet cell mortality and increasing insulin (INS) levels. Flow cytometry analysis showed a decrease in T helper 17 cells (Th17) and an increase in Treg cells after MNAM treatment, corresponding to the upregulation of Treg markers [interleukin (IL)-10, forkhead box P3 (FOXP3)] and downregulation of Th17 markers [IL17A, RAR-related orphan receptor gamma (RORγt)]. Additionally, MNAM raised anti-inflammatory IL-10 levels while reducing pro-inflammatory cytokines [IL-17α, tumor necrosis factor (TNF-α), IL-6]. Microbiome analysis revealed decreased diversity and increased <em>Blautia</em> abundance post-MNAM administration. Treatment with <em>Blautia</em> not only reversed diabetes indicators but also modulated the Th17/Treg balance and reduced inflammation, with its metabolite sodium acetate mimicking these effects through the G protein-coupled receptor 43 (GPR43) pathway. These findings suggest that MNAM’s mitigation of diabetes operates through modulation of the gut microbiota and immune regulation, highlighting <em>Blautia</em> and its metabolite as potential therapeutic agents and providing a theoretical foundation for novel treatment strategies in T2DM.</div></div>","PeriodicalId":8806,"journal":{"name":"Biochemical pharmacology","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493923","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

Increased hydrogen sulfide turnover serves a cytoprotective role during the development of replicative senescence 在复制衰老的发展过程中，硫化氢周转的增加起到了细胞保护的作用。

IF 5.3 2区医学

Biochemical pharmacology Pub Date : 2024-10-23 DOI: 10.1016/j.bcp.2024.116595

{"title":"Increased hydrogen sulfide turnover serves a cytoprotective role during the development of replicative senescence","authors":"","doi":"10.1016/j.bcp.2024.116595","DOIUrl":"10.1016/j.bcp.2024.116595","url":null,"abstract":"<div><div>The mammalian gasotransmitter hydrogen sulfide (H<sub>2</sub>S) is produced by enzymes such as cystathionine β-synthase (CBS), cystathionine γ-lyase (CSE), 3-mercaptopyruvate sulfurtransferase (3-MST). Prior studies suggest that H<sub>2</sub>S may have cytoprotective and anti-aging effects. This project explores the regulation and role of endogenous H<sub>2</sub>S in a murine model of replicative senescence. H<sub>2</sub>S and polysulfide levels in RAW 264.7 murine macrophages (control cells: passage 5–10; senescent cells: passage 30–40) were measured using fluorescent probes. The expression of H<sub>2</sub>S-related enzymes and the activity of senescence marker beta-galactosidase (SA-β-Gal) were also analyzed. CBS, CSE, and 3-MST were inhibited using selective pharmacological inhibitors. Senescence led to a moderate upregulation of CBS and in a significant increase in CSE and 3-MST. H<sub>2</sub>S degradation enzymes were also elevated in senescence. Inhibition of H<sub>2</sub>S-producing enzymes reduced H<sub>2</sub>S levels but increased polysulfides. Inhibition of H<sub>2</sub>S production during senescence suppressed cell proliferation, and elevated SA-β-Gal and p21 levels. Comparing young and old mice spleens revealed downregulation of CBS and ETHE1 and upregulation of rhodanese and SUOX in older mice. The results demonstrate that increased reactive sulfur turnover occurs in senescent macrophages and that reactive sulfur species support cell proliferation and regulate cellular senescence.</div></div>","PeriodicalId":8806,"journal":{"name":"Biochemical pharmacology","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493927","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

Therapeutic targeting of Wnt antagonists by small molecules for treatment of osteoporosis 利用小分子 Wnt 拮抗剂治疗骨质疏松症。

IF 5.3 2区医学

Biochemical pharmacology Pub Date : 2024-10-22 DOI: 10.1016/j.bcp.2024.116587

{"title":"Therapeutic targeting of Wnt antagonists by small molecules for treatment of osteoporosis","authors":"","doi":"10.1016/j.bcp.2024.116587","DOIUrl":"10.1016/j.bcp.2024.116587","url":null,"abstract":"<div><div>Wnt signaling is one of the key regulators of bone development and homeostasis. Wnt signaling regulates key biological events, including stem cell fate and osteoblast and osteoclast activity, leading to the maintenance of bone mass and strength. Wnt ligands are secreted glycoproteins that bind to Frizzled (FZD) receptors and their coreceptors, lipoprotein receptor-related proteins-5/6 (LRP5/6). Binding of Wnts to FZD triggers canonical (β-catenin-dependent) and noncanonical (β-catenin-independent) pathways. In canonical Wnt signaling, stabilized β-catenin translocates to the nucleus, where it promotes osteoblast differentiation by activating target genes, including Runx2 and Osterix. The negative regulators of Wnt or so-called Wnt antagonists, including CXXC5, sFRP, sclerostin, DKK1, and Notum, compete for Fzd binding, attenuating Wnt signaling. The critical roles of Wnt signaling in bone homeostasis have been established by various bone diseases caused by mutations in Wnt signaling pathways. Loss-of-function mutations in the LRP5 gene cause osteoporosis-pseudoglioma syndrome, whereas gain-of-function mutations are linked to osteopetrosis characterized by high bone density. Sclerosteosis and Van Buchem disease are caused by mutations affecting the <em>SOST</em> gene, which encodes sclerostin, a natural inhibitor of Wnt signalling. Loss-of-function mutations in <em>SOST</em> result in excessive bone growth, markedly increased bone density, and other skeletal abnormalities due to uncontrolled Wnt activity. Considering the clinical relevance of Wnt signaling, targeting Wnt inhibitors is being intensely pursued using small molecules that act by inhibiting endogenous Wnt agonists. We used a computational biology approach to review current data on pharmacophores of Wnt antagonists, assessing their potential as therapeutic candidates for postmenopausal osteoporosis.</div></div>","PeriodicalId":8806,"journal":{"name":"Biochemical pharmacology","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142493925","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

Ponatinib exacerbate renal injury in systemic lupus erythematosus mouse model through PDGFR-PI3K/AKT pathway 泊纳替尼通过PDGFR-PI3K/AKT通路加剧系统性红斑狼疮小鼠模型的肾损伤

IF 5.3 2区医学

Biochemical pharmacology Pub Date : 2024-10-19 DOI: 10.1016/j.bcp.2024.116578

{"title":"Ponatinib exacerbate renal injury in systemic lupus erythematosus mouse model through PDGFR-PI3K/AKT pathway","authors":"","doi":"10.1016/j.bcp.2024.116578","DOIUrl":"10.1016/j.bcp.2024.116578","url":null,"abstract":"<div><div>Lupus nephritis (LN) is a common clinical complication of systemic lupus erythematosus (SLE). Proliferative lupus nephritis represents the gravest form of LN, and since effective drugs for its treatment are still lacking, tyrosine kinase inhibitors (TKIs) find extensive clinical utility due to their notable impact on suppressing cell proliferation and may serve as potential drugs for LN treatment. However, previous studies on the effects of TKI on LN have been controversial. Ponatinib, a third-generation TKI, lacks studies on its role in LN. This study aimed to investigate the impact of the ponatinib on LN. MRL/lpr mice were evaluated for renal function, autoimmune markers and histopathological changes after oral administration of ponatinib. RNA-seq analysis was performed to explore the molecular pathways involved in ponatinib-induced kidney injury. Ponatinib uniquely exacerbated renal damage in MRL/lpr mice, evidenced by a decline in renal function and acute pathological changes, without affecting lupus-related autoimmune markers. Differential expressed genes analysis and functional enrichment implicate ponatinib-induced renal damage in MRL/lpr mice associated with adiponectin. Furthermore, we verified ponatinib signaling the PI3K/AKT pathway through PDGFRα, potentially influencing high molecular weight adiponectin (HMW ADIPOQ) expression and exacerbating renal damage. In conclusion, this study demonstrates that ponatinib can up-regulate HMW ADIPOQ expression via the PI3K/AKT pathway by inhibiting PDGFRα phosphorylation, highlighting the potential nephrotoxic effects of ponatinib in lupus-prone mice, and underscoring the importance of monitoring renal function in systemic autoimmune diseases patients receiving ponatinib.</div></div>","PeriodicalId":8806,"journal":{"name":"Biochemical pharmacology","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142457055","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

Activation of the γ-secretase/NICD-PXR/Notch pathway induces Taxol resistance in triple-negative breast cancer 激活γ-分泌酶/NICD-PXR/Notch通路可诱导三阴性乳腺癌对紫杉醇产生抗药性。

IF 5.3 2区医学

Biochemical pharmacology Pub Date : 2024-10-19 DOI: 10.1016/j.bcp.2024.116577

{"title":"Activation of the γ-secretase/NICD-PXR/Notch pathway induces Taxol resistance in triple-negative breast cancer","authors":"","doi":"10.1016/j.bcp.2024.116577","DOIUrl":"10.1016/j.bcp.2024.116577","url":null,"abstract":"<div><div>Triple-negative breast cancer (TNBC) is currently the only subtype lacking efficient targeted therapies. Taxol is the primary chemotherapeutic agent for TNBC. However, Taxol resistance often develops in the treatment of TNBC patients, which importantly contributes to high mortality and poor prognosis in TNBC patients. Recent preclinical studies have shown that the inhibition of Notch pathway by γ-secretase inhibitors can slow down the progression of TNBC. Our studies in bioinformatic analysis of breast cancer patients and TNBC/Taxol cells <em>in vitro</em> showed that there was high correlation between the activation of Notch pathway and Taxol resistance in TNBC. Increased γ-secretase activity (by the overexpression of catalytic core PSEN-1) significantly reduced Taxol sensitivity of TNBC cells, and enhanced biological characteristics of malignancy <em>in vitro</em>, and tumour growth <em>in vivo</em>. Mechanistically, increased γ-secretase activity led to the accumulation of NICD in the nucleus, promoting the interaction between NICD and PXR to activate PXR, which triggered the transcription of PXR downstream associated drug resistance genes. Furthermore, we showed that pharmacological inhibition of γ-secretase with γ-secretase inhibitors (Nirogacestat and DAPT) can reverse Taxol resistance <em>in vivo</em> and <em>in vitro</em>. Our results for the first time demonstrate that the activation of γ −secretase/NCD-PXR/Notch pathway is one of important mechanisms to cause Taxol resistance in TNBC, and the blockades of this pathway may represent a new therapeutic strategy for overcoming Taxol resistance in TNBC.</div></div>","PeriodicalId":8806,"journal":{"name":"Biochemical pharmacology","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142457053","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

Corrigendum to “Melatonin inhibits angiotensin II–induced atrial fibrillation through preventing degradation of Ang II Type I Receptor–Associated Protein (ATRAP)” [Biochem. Pharmacol. 202 (2022) 115146] 褪黑素通过阻止血管紧张素ⅡⅠ型受体相关蛋白（ATRAP）降解，抑制血管紧张素Ⅱ诱导的心房颤动》[《生物化学药理学》202 (2022) 115146]更正。

IF 5.3 2区医学

Biochemical pharmacology Pub Date : 2024-10-19 DOI: 10.1016/j.bcp.2024.116579

引用次数: 0

SERPINA1 promotes the invasion, metastasis, and proliferation of pancreatic ductal adenocarcinoma via the PI3K/Akt/NF-κB pathway SERPINA1通过PI3K/Akt/NF-κB途径促进胰腺导管腺癌的侵袭、转移和增殖。

IF 5.3 2区医学

Biochemical pharmacology Pub Date : 2024-10-18 DOI: 10.1016/j.bcp.2024.116580

引用次数: 0