PharmacologyPub Date : 2024-01-01Epub Date: 2024-07-22DOI: 10.1159/000540351
Jong-Won Kim, Yu Ji Kim
{"title":"Cholesin and GPR146 in Modulating Cholesterol Biosynthesis.","authors":"Jong-Won Kim, Yu Ji Kim","doi":"10.1159/000540351","DOIUrl":"10.1159/000540351","url":null,"abstract":"<p><strong>Background: </strong>Cholesterol homeostasis in the human body is a crucial process that involves a delicate balance between dietary cholesterol absorption in the intestine and de novo cholesterol synthesis in the liver. Both pathways contribute significantly to the overall pool of cholesterol in the body, influencing plasma cholesterol levels and impacting cardiovascular health. Elevated absorption of cholesterol in the intestines has a suppressive impact on the synthesis of cholesterol in the liver, serving to preserve cholesterol balance. Nonetheless, the precise mechanisms driving this phenomenon remain largely unclear.</p><p><strong>Summary: </strong>This review aimed to discuss the previously unrecognized role of cholesin and GPR146 in the regulation of cholesterol biosynthesis, providing a novel conceptual framework for understanding cholesterol homeostasis.</p><p><strong>Key messages: </strong>The discovery of cholesin, a novel protein implicated in the regulation of cholesterol homeostasis, represents a significant advancement in our understanding of cholesterol biosynthesis and its associated pathways. The cholesin-GPR146 axis could have profound implications across various therapeutic areas concerning abnormal cholesterol metabolism, offering new hope for patients and improving overall healthcare outcomes.</p>","PeriodicalId":20209,"journal":{"name":"Pharmacology","volume":" ","pages":"305-311"},"PeriodicalIF":2.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141620742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Simvastatin Attenuates Cardiac Fibrosis under Pathophysiological Conditions of Heart Failure with Preserved Left Ventricular Ejection Fraction by Inhibiting TGF-β Signaling.","authors":"Tetsuro Marunouchi, Kasumi Matsumura, Eriko Fuji, Akihiro Iwamoto, Kouichi Tanonaka","doi":"10.1159/000534933","DOIUrl":"10.1159/000534933","url":null,"abstract":"<p><strong>Introduction: </strong>There is still no effective treatment for heart failure with preserved left ventricular ejection fraction (HFpEF), and therapies to improve prognosis are urgently needed. Clinical studies in patients with HFpEF have shown that statins and HMG-CoA reductase inhibitors may reduce their mortality rate. However, the mechanisms underlying the effects of statins on HFpEF remain unknown. In the present study, we examined whether simvastatin administration inhibits the development of cardiac fibrosis in HFpEF model mice. We further examined the contribution of the Smad and mitogen-activated protein (MAP) kinase pathways to the transforming growth factor-β (TGF-β) signaling pathway in the development of HFpEF.</p><p><strong>Methods: </strong>HFpEF animals were prepared by feeding C57BL/6 N mice a high-fat diet and providing water containing N[w]-nitro-<sc>l</sc>-arginine methyl ester hydrochloride (<sc>l</sc>-NAME) for 15 weeks. Simvastatin (30 mg/kg/day) or vehicle was administered orally daily during the experimental period. Cardiac function was measured by echocardiography, and cardiac fibrosis was evaluated by Masson's trichrome staining. Changes in the TGF-β signaling proteins in myocardial tissue were examined by Western blotting.</p><p><strong>Results: </strong>A high-fat diet and <sc>l</sc>-NAME solution load induced cardiac diastolic dysfunction with cardiac fibrosis. Simvastatin treatment markedly attenuated cardiac fibrosis and reduced cardiac diastolic dysfunction. In addition, simvastatin prevented the increase in phosphorylation levels of Smad (Smad2 and Smad3) and MAPK (c-Raf, Erk1/2) pathway proteins downstream of the TGF-β receptor in cardiac tissue.</p><p><strong>Conclusions: </strong>Our present study demonstrated that simvastatin attenuated diastolic dysfunction by reducing cardiac fibrosis in HFpEF hearts. Furthermore, our findings suggest that the mechanisms by which simvastatin attenuates HFpEF development involve, at least in part, inhibition of the TGF-β signaling pathway, which is activated in the HFpEF heart.</p>","PeriodicalId":20209,"journal":{"name":"Pharmacology","volume":" ","pages":"43-51"},"PeriodicalIF":3.1,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138452260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PharmacologyPub Date : 2024-01-01Epub Date: 2024-05-06DOI: 10.1159/000539137
{"title":"Expression of Concern.","authors":"","doi":"10.1159/000539137","DOIUrl":"10.1159/000539137","url":null,"abstract":"","PeriodicalId":20209,"journal":{"name":"Pharmacology","volume":" ","pages":"180"},"PeriodicalIF":2.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140869366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PharmacologyPub Date : 2024-01-01Epub Date: 2024-02-16DOI: 10.1159/000537887
Christoph Kuemmerli, Viviane Hess, Philipp Dutkowski, Stefanie Sinz, Ulf Kessler, Gabriel F Hess, Adrian T Billeter, Beat P Müller-Stich, Otto Kollmar, Philip C Müller
{"title":"Hepatic Artery Infusion Chemotherapy for Primary and Secondary Malignancies of the Liver: State of the Art and Current High-Level Evidence.","authors":"Christoph Kuemmerli, Viviane Hess, Philipp Dutkowski, Stefanie Sinz, Ulf Kessler, Gabriel F Hess, Adrian T Billeter, Beat P Müller-Stich, Otto Kollmar, Philip C Müller","doi":"10.1159/000537887","DOIUrl":"10.1159/000537887","url":null,"abstract":"<p><strong>Background: </strong>Hepatic artery infusion chemotherapy (HAI) has been proposed as a valuable adjunct for multimodal therapy of primary and secondary liver malignancies. This review provides an overview of the currently available evidence of HAI, taking into account tumor response and long-term oncologic outcome.</p><p><strong>Summary: </strong>In colorectal liver metastases (CRLM), HAI in combination with systemic therapy leads to high response rates (85-90%) and conversion to resectablity in primary unresectable disease in up to 50%. HAI in combination with systemic therapy in CRLM in the adjuvant setting shows promising long-term outcomes with up to 50% 10-year survival in a large, non-randomized single-center cohort. For hepatocellular carcinoma patients, response rates as high as 20-40% have been reported for HAI and long-term outcomes compare well to other therapies. Similarly, survival for patients with unresectable intrahepatic cholangiocarcinoma 3 years after treatment with HAI is reported as high as 34%, which compares well to trials of systemic therapy where 3-year survival is usually below 5%. However, evidence is mainly limited by highly selected, heterogenous patient groups, and outdated chemotherapy regimens. The largest body of evidence stems from small, often non-randomized cohorts, predominantly from highly specialized single centers.</p><p><strong>Key message: </strong>In well-selected patients with primary and secondary liver malignancies, HAI might improve response rates and, possibly, long-term survival. Results of ongoing randomized trials will show whether a wider adoption of HAI is justified, particularly to increase rates of resectability in advanced malignant diseases confined to the liver.</p>","PeriodicalId":20209,"journal":{"name":"Pharmacology","volume":" ","pages":"86-97"},"PeriodicalIF":3.1,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11008720/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139900278","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":"Transcription Factor 21: A Transcription Factor That Plays an Important Role in Cardiovascular Disease.","authors":"Yaqian Luo, Fangzhou He, Yifang Zhang, Shufan Li, Ruirui Lu, Xing Wei, Ji Huang","doi":"10.1159/000536585","DOIUrl":"10.1159/000536585","url":null,"abstract":"<p><strong>Background: </strong>According to the World Health Organisation's Health Report 2019, approximately 17.18 million people die from cardiovascular disease each year, accounting for more than 30% of all global deaths. Therefore, the occurrence of cardiovascular disease is still a global concern. The transcription factor 21 (TCF21) plays an important role in cardiovascular diseases. This article reviews the regulation mechanism of TCF21 expression and activity and focuses on its important role in atherosclerosis in order to contribute to the development of diagnosis and treatment of cardiovascular diseases.</p><p><strong>Summary: </strong>TCF21 is involved in the phenotypic regulation of vascular smooth muscle cells (VSMCs), promotes the proliferation and migration of VSMCs, and participates in the activation of inflammatory sequences. Increased proliferation and migration of VSMCs can lead to neointimal hyperplasia after vascular injury. Abnormal hyperplasia of neointima and inflammation are one of the main features of atherosclerosis. Therefore, targeting TCF21 may become a potential treatment for relieving atherosclerosis.</p><p><strong>Key messages: </strong>TCF21 as a member of basic helix-loop-helix transcription factors regulates cell growth and differentiation by modulating gene expression during the development of different organs and plays an important role in cardiovascular development and disease. VSMCs and cells derived from VSMCs constitute the majority of plaques in atherosclerosis. TCF21 plays a key role in regulation of VSMCs' phenotype, thus accelerating atherogenesis in the early stage. However, TCF21 enhances plaque stability in late-stage atherosclerosis. The dual role of TCF21 should be considered in the translational medicine.</p>","PeriodicalId":20209,"journal":{"name":"Pharmacology","volume":" ","pages":"183-193"},"PeriodicalIF":2.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140144028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Transcription Factor MITF Inhibits the Transcription of CPT1B to Regulate Fatty Acid β-Oxidation and Thus Affects Stemness in Lung Adenocarcinoma Cells.","authors":"Weijian Tang, Hongguang Tang, Shaohua Xu, Hao Yu, Zhoumiao Chen","doi":"10.1159/000534547","DOIUrl":"10.1159/000534547","url":null,"abstract":"<p><strong>Introduction: </strong>Cancer stem cells (CSCs) play critical roles in lung adenocarcinoma (LUAD) progression, and fatty acid oxidation is key for CSC growth and survival. Therefore, investigating the molecular mechanisms regulating fatty acid β-oxidation in LUAD is important for its treatment.</p><p><strong>Methods: </strong>Bioinformatics analysis assessed CPT1B and MITF expression and their correlation in LUAD tissues, as well as the pathways enriched by CPT1B. qRT-PCR assessed expression of CPT1B and MITF, while CCK-8 and sphere-forming assays were used to measure cell viability and stemness, respectively. Dual staining detected lipid accumulation, while kits were used to measure fatty acid β-oxidation and glycerol content. qRT-PCR was used to assay expression of lipid oxidation genes. Western blot was used to examine expression of stem cell-related markers. Dual-luciferase assay and ChIP assay were used to verify the binding relationship between MITF and CPT1B.</p><p><strong>Results: </strong>CPT1B was found to be highly expressed in LUAD and enriched in linoleic acid metabolism pathway and α-linolenic acid metabolism pathway. Functional experiments showed that CPT1B could promote stemness in LUAD cells by regulating fatty acid β-oxidation. Additionally, CPT1B was found to be regulated by the upstream transcription factor MITF, which was lowly expressed in LUAD and could downregulate CPT1B expression. Rescue experiments revealed that CPT1B/MITF axis could affect stemness in LUAD cells by regulating fatty acid β-oxidation.</p><p><strong>Conclusion: </strong>Transcription factor MITF inhibited transcription of CPT1B to regulate fatty acid β-oxidation, thereby suppressing stemness in LUAD cells. MITF and CPT1B may become new targets for LUAD.</p>","PeriodicalId":20209,"journal":{"name":"Pharmacology","volume":" ","pages":"52-64"},"PeriodicalIF":3.1,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138452261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}