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Li C, Chen X, Du Z, Geng X, Li M, Yang X, Bo C, Jia Q, Yu G, Shi L. Inhibiting ferroptosis in brain microvascular endothelial cells: A potential strategy to mitigate polystyrene nanoplastics‒induced blood‒brain barrier dysfunction. ENVIRONMENTAL RESEARCH 2024; 250:118506. [PMID: 38387496 DOI: 10.1016/j.envres.2024.118506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/11/2024] [Accepted: 02/14/2024] [Indexed: 02/24/2024]
Abstract
Polystyrene nanoplastics (PS-NPs), a group of ubiquitous pollutants, may injure the central nervous system through the blood‒brain barrier (BBB). However, whether exposure to PS-NPs contributes to BBB disruption and the underlying mechanisms are still unclear. In vivo, we found that PS-NPs (25 mg/kg BW) could significantly increase BBB permeability in mice and downregulate the distribution of the tight junction-associated protein zona occludens 1 (ZO-1) in brain microvascular endothelial cells (BMECs). Using an in vitro BBB model, exposure to PS-NPs significantly reduced the transendothelial electrical resistance and altered ZO-1 expression and distribution in a dose-dependent manner. RNA-seq analysis and functional investigations were used to investigate the molecular pathways involved in the response to PS-NPs. The results revealed that the ferroptosis and glutathione metabolism signaling pathways were related to the disruption of the BBB model caused by the PS-NPs. PS-NPs treatment promoted ferroptosis in bEnd.3 cells by inducing disordered glutathione metabolism in addition to Fe2+ and lipid peroxide accumulation, while suppressing ferroptosis with ferrostatin-1 (Fer-1) suppressed ferroptosis-related changes in bEnd.3 cells subjected to PS-NPs. Importantly, Fer-1 alleviated the decrease in ZO-1 expression in bEnd.3 cells and the exacerbation of BBB damage induced by PS-NPs. Collectively, our findings suggest that inhibiting ferroptosis in BMECs may serve as a potential therapeutic target against BBB disruption induced by PS-NPs exposure.
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Affiliation(s)
- Chao Li
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, Shandong, 250062, China
| | - Xiaoshu Chen
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, Shandong, 250062, China
| | - Zhongjun Du
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, Shandong, 250062, China
| | - Xiao Geng
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, Shandong, 250062, China
| | - Ming Li
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, Shandong, 250062, China
| | - Xiaohan Yang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, Shandong, 250062, China
| | - Cunxiang Bo
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, Shandong, 250062, China
| | - Qiang Jia
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, Shandong, 250062, China.
| | - Gongchang Yu
- Neck-Shoulder and Lumbocrural Pain Hospital of Shandong First Medical University, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, Shandong, 250062, China; Shandong Mental Health Center, Ji'nan, Shandong, 250014, China.
| | - Liang Shi
- Neck-Shoulder and Lumbocrural Pain Hospital of Shandong First Medical University, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, Shandong, 250062, China.
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Makri ES, Makri E, Goulas A, Xanthopoulos K, Polyzos SA. Animal studies of sodium-glucose co-transporter 2 inhibitors in nonalcoholic fatty liver disease. Ann Gastroenterol 2024; 37:280-290. [PMID: 38779641 PMCID: PMC11107411 DOI: 10.20524/aog.2024.0884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 04/10/2024] [Indexed: 05/25/2024] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is considered one of the most common chronic liver diseases. Modern lifestyle, characterized by increasing rates of obesity and type 2 diabetes mellitus (T2DM), has led to a "pandemic" of NAFLD that imposes a personal health and socioeconomic burden. Apart from overnutrition and insulin resistance, various metabolic aberrations, gut microbiota and genetic predispositions are involved in the pathogenesis of the disease. The multifactorial nature of NAFLD's pathogenesis makes the development of pharmacological therapies for patients with this disease challenging. Sodium-glucose co-transporter 2 inhibitors (SGLT-2i) are antidiabetic agents that reduce blood glucose mainly by increasing its renal excretion. As T2DM is one of the major contributors to NAFLD, SGLT-2i have emerged as promising agents for the management of NAFLD. In this review, we summarize the main animal studies on SGLT-2i in models of NAFLD.
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Affiliation(s)
- Evangelia S. Makri
- First Laboratory of Pharmacology, School of Medicine, Aristotle University of Thessaloniki (Evangelia S. Makri, Eleftheria Makri, Antonis Goulas, Stergios A. Polyzos)
| | - Eleftheria Makri
- First Laboratory of Pharmacology, School of Medicine, Aristotle University of Thessaloniki (Evangelia S. Makri, Eleftheria Makri, Antonis Goulas, Stergios A. Polyzos)
| | - Antonis Goulas
- First Laboratory of Pharmacology, School of Medicine, Aristotle University of Thessaloniki (Evangelia S. Makri, Eleftheria Makri, Antonis Goulas, Stergios A. Polyzos)
| | - Konstantinos Xanthopoulos
- Laboratory of Pharmacology, School of Pharmacy, Aristotle University of Thessaloniki (Konstantinos Xanthopoulos)
- Institute of Applied Biosciences, Centre for Research and Technology, Thessaloniki (Konstantinos Xanthopoulos), Greece
| | - Stergios A. Polyzos
- First Laboratory of Pharmacology, School of Medicine, Aristotle University of Thessaloniki (Evangelia S. Makri, Eleftheria Makri, Antonis Goulas, Stergios A. Polyzos)
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Hu J, Teng J, Hui S, Liang L. SGLT-2 inhibitors as novel treatments of multiple organ fibrosis. Heliyon 2024; 10:e29486. [PMID: 38644817 PMCID: PMC11031788 DOI: 10.1016/j.heliyon.2024.e29486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 04/08/2024] [Accepted: 04/08/2024] [Indexed: 04/23/2024] Open
Abstract
Fibrosis, a significant health issue linked to chronic inflammatory diseases, affects various organs and can lead to serious damage and loss of function. Despite the availability of some treatments, their limitations necessitate the development of new therapeutic options. Sodium-glucose cotransporter 2 inhibitors (SGLT2i), known for their glucose-lowering ability, have shown promise in offering protective effects against fibrosis in multiple organs through glucose-independent mechanisms. This review explores the anti-fibrotic potential of SGLT2i across different tissues, providing insights into their underlying mechanisms and highlighting recent research advancements. The evidence positions SGLT2i as a potential future treatments for fibrotic diseases.
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Affiliation(s)
- Junpei Hu
- Department of Geriatrics, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, China
| | - Jianhui Teng
- Department of Geriatrics, Hunan Provincial People's Hospital, China
| | - Shan Hui
- Department of Geriatrics, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, China
| | - Lihui Liang
- Department of Geriatrics, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, China
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Sun M, Sun J, Sun W, Li X, Wang Z, Sun L, Wang Y. Unveiling the anticancer effects of SGLT-2i: mechanisms and therapeutic potential. Front Pharmacol 2024; 15:1369352. [PMID: 38595915 PMCID: PMC11002155 DOI: 10.3389/fphar.2024.1369352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 03/14/2024] [Indexed: 04/11/2024] Open
Abstract
Cancer and diabetes are significant diseases that pose a threat to human health. Their interconnection is complex, particularly when they coexist, often necessitating multiple therapeutic approaches to attain remission. Sodium-glucose cotransporter protein two inhibitors (SGLT-2i) emerged as a treatment for hyperglycemia, but subsequently exhibited noteworthy extra-glycemic properties, such as being registered for the treatment of heart failure and chronic kidney disease, especially with co-existing albuminuria, prompting its assessment as a potential treatment for various non-metabolic diseases. Considering its overall tolerability and established use in diabetes management, SGLT-2i may be a promising candidate for cancer therapy and as a supplementary component to conventional treatments. This narrative review aimed to examine the potential roles and mechanisms of SGLT-2i in the management of diverse types of cancer. Future investigations should focus on elucidating the antitumor efficacy of individual SGLT-2i in different cancer types and exploring the underlying mechanisms. Additionally, clinical trials to evaluate the safety and feasibility of incorporating SGLT-2i into the treatment regimen of specific cancer patients and determining appropriate dosage combinations with established antitumor agents would be of significant interest.
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Affiliation(s)
- Min Sun
- Department of Geriatrics, First Hospital, Jilin University, Changchun, China
| | - Jilei Sun
- Changchun Traditional Chinese Medicine Hospital, Changchun, China
| | - Wei Sun
- First Affiliated Hospital of Jilin University, Changchun, China
| | - Xiaonan Li
- Department of Geriatrics, First Hospital, Jilin University, Changchun, China
| | - Zhe Wang
- Department of Geriatrics, First Hospital, Jilin University, Changchun, China
| | - Liwei Sun
- Research Center of Traditional Chinese Medicine, The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, China
| | - Yuehui Wang
- Department of Geriatrics, First Hospital, Jilin University, Changchun, China
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Zachou M, Flevari P, Nasiri-Ansari N, Varytimiadis C, Kalaitzakis E, Kassi E, Androutsakos T. The role of anti-diabetic drugs in NAFLD. Have we found the Holy Grail? A narrative review. Eur J Clin Pharmacol 2024; 80:127-150. [PMID: 37938366 PMCID: PMC10781828 DOI: 10.1007/s00228-023-03586-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 10/19/2023] [Indexed: 11/09/2023]
Abstract
PURPOSE Non-alcoholic fatty liver disease (NAFLD) has become a leading cause of liver disease, affecting 30% of the global population. NAFLD prevalence is particularly high in obese individuals and patients with type 2 diabetes mellitus (T2DM). NAFLD ranges from simple fat deposition in the liver to necroinflammation and fibrosis (non-alcoholic steatohepatitis (NASH)), NASH-cirrhosis, and/or hepatocellular carcinoma. Insulin resistance plays a key role in NAFLD pathogenesis, alongside dysregulation of adipocytes, mitochondrial dysfunction, genetic factors, and changes in gut microbiota. Since insulin resistance is also a major predisposing factor of T2DM, the administration of anti-diabetic drugs for the management of NAFLD seems reasonable. METHODS In this review we provide the NAFLD-associated mechanisms of action of some of the most widely used anti-diabetic drugs, namely metformin, pioglitazone, sodium-glucose transport protein-2 inhibitors (SGLT2i), glucagon-like peptide 1 receptor analogs (GLP1 RAs), and dipeptyl-peptidase-4 inhibitors (DPP4i) and present available data regarding their use in patients with NAFLD, with and without T2DM. RESULTS Both metformin and DPP4i have shown rather contradictory results, while pioglitazone seems to benefit patients with NASH and is thus the only drug approved for NASH with concomitant significant liver fibrosis by all major liver societies. On the other hand, SGLT2i and GLP1 RAs seem to be beneficiary in patients with NAFLD, showing both remarkable results, with SGLT2i proving to be more efficient in the only head-to-head study so far. CONCLUSION In patients with NAFLD and diabetes, pioglitazone, GLP1 RAs, and SGLT2i seem to be logical treatment options. Larger studies are needed before these drugs can be recommended for non-diabetic individuals.
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Affiliation(s)
- Maria Zachou
- Gastroenterology Department, "Sismanoglio" General Hospital, 151 26, Athens, Greece
| | - Pagona Flevari
- Expertise Center in Rare Haematological Diseases-Haemoglobinopathies, "Laiko" General Hospital, 115 27, Athens, Greece
| | - Narjes Nasiri-Ansari
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 115 27, Athens, Greece
| | | | - Evangelos Kalaitzakis
- Department of Gastroenterology, University Hospital of Heraklion, University of Crete, 715 00, Heraklion, Greece
| | - Eva Kassi
- Unit of Molecular Endocrinology, Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 115 27, Athens, Greece
- Endocrine Unit, 1st Department of Propaedeutic Internal Medicine, "Laiko" Hospital, National and Kapodistrian University of Athens, 115 27, Athens, Greece
| | - Theodoros Androutsakos
- Department of Pathophysiology, Medical School, National and Kapodistrian University of Athens, Mikras Asias 75, 115 27, Athens, Greece.
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Abdelmageed ME, Abdelrahman RS. Canagliflozin attenuates thioacetamide-induced liver injury through modulation of HMGB1/RAGE/TLR4 signaling pathways. Life Sci 2023; 322:121654. [PMID: 37023955 DOI: 10.1016/j.lfs.2023.121654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 03/21/2023] [Accepted: 03/29/2023] [Indexed: 04/08/2023]
Abstract
Thioacetamide (TAA), a classic liver toxic compound, is used to establish experimental models of liver injury via induction of inflammation and oxidative stress. The current study was employed to explore the effects of canagliflozin (CANA), a sodium glucose cotransporter 2 (SGLT-2) inhibitor and antidiabetic agent, on TAA-induced acute liver injury. METHODS A rat model of acute hepatic injury was established using single intraperitoneal injection of TAA (500 mg/kg) and rats received CANA (10 and 30 mg/kg, orally) once daily for 10 days prior to TAA challenge. Liver function, oxidative stress, and inflammatory parameters were measured in serum and hepatic tissues of rats. RESULTS Elevated levels of liver enzymes, hepatic malondialdehyde (MDA), and serum lactate dehydrogenase (LDH) were significantly attenuated by CANA. CANA also increased hepatic superoxide dismutase (SOD) and glutathione (GSH). Hepatic levels of high-mobility group box 1 (HMGB1), toll like receptor4 (TLR4), receptor for advanced glycation end products (RAGE), and pro-inflammatory cytokines (IL-6, and IL-1β) were normalized with CANA. Additionally, Hepatic expression of p-JNK/p-p38 MAPK was significantly attenuated by CANA compared to TAA-treated rats. CANA also decreased hepatic immunoexpression of NF-κB and TNF-α and attenuated hepatic histopathological alterations via reduction of inflammation and necrosis scores and collagen deposition. Moreover, mRNA expression levels of TNF-α and IL-6 were reduced upon CANA treatment. CONCLUSION CANA attenuates TAA-prompted acute liver damage, via suppressing HMGB1/RAGE/TLR4 signaling, regulation of oxidative stress and inflammation pathways.
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Affiliation(s)
- Marwa E Abdelmageed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, 35516 Mansoura, Egypt.
| | - Rehab S Abdelrahman
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, 35516 Mansoura, Egypt; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Taibah University, Al-Madina Al-Munawwarah 30001, Saudi Arabia
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Plaz Torres MC, Jaffe A, Perry R, Marabotto E, Strazzabosco M, Giannini EG. Diabetes medications and risk of HCC. Hepatology 2022; 76:1880-1897. [PMID: 35239194 PMCID: PMC9790535 DOI: 10.1002/hep.32439] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 02/23/2022] [Accepted: 02/24/2022] [Indexed: 02/06/2023]
Abstract
Type 2 diabetes mellitus is a recognized risk factor for HCC in patients with liver disease, independent from the etiology of their liver disease. Hence, prevention and treatment of type 2 diabetes mellitus and its underlying cause, insulin resistance, should be considered a treatment target for patients with liver disease. The drug armamentarium for diabetes is wide and consists of agents with insulin-sensitizing activity, agents that stimulate insulin secretion, insulin itself, and agents that reduce gastrointestinal and urinary glucose absorption. From an endocrinology perspective, the main goal of treatment is the achievement of euglycemia; however, in patients at risk of, or with known underlying liver disease, the choice of diabetic medication as it relates to potential hepatic carcinogenesis remains complex and should be carefully considered. In the last decade, increasing evidence has suggested that metformin may reduce the risk of HCC, whereas evidence for other classes of diabetic medications, particularly some of the newer agents including the sodium glucose cotransporter-2 inhibitors and glucagon-like peptide-1 receptor agonists, is fewer and often inconsistent. In this review, we aim to summarize the current evidence on the potential effects of the most widely used diabetic agents on liver cancer tumorigenesis.
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Affiliation(s)
- Maria Corina Plaz Torres
- Gastroenterology Unit, Department of Internal MedicineIRCCS—Ospedale Policlinico San Martino, University of GenoaGenoaItaly
| | - Ariel Jaffe
- Liver CenterDepartment of Internal MedicineYale University School of MedicineNew HavenConnecticutUSA
| | - Rachel Perry
- Liver CenterDepartment of Internal MedicineYale University School of MedicineNew HavenConnecticutUSA
- Section of EndocrinologyDepartment of Internal MedicineYale University School of MedicineNew HavenConnecticutUSA
- Department of Cellular and Molecular PhysiologyYale University School of MedicineNew HavenConnecticutUSA
| | - Elisa Marabotto
- Gastroenterology Unit, Department of Internal MedicineIRCCS—Ospedale Policlinico San Martino, University of GenoaGenoaItaly
| | - Mario Strazzabosco
- Liver CenterDepartment of Internal MedicineYale University School of MedicineNew HavenConnecticutUSA
| | - Edoardo G. Giannini
- Gastroenterology Unit, Department of Internal MedicineIRCCS—Ospedale Policlinico San Martino, University of GenoaGenoaItaly
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Does DPP-IV Inhibition Offer New Avenues for Therapeutic Intervention in Malignant Disease? Cancers (Basel) 2022; 14:cancers14092072. [PMID: 35565202 PMCID: PMC9103952 DOI: 10.3390/cancers14092072] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/16/2022] [Accepted: 04/18/2022] [Indexed: 02/06/2023] Open
Abstract
Simple Summary There is growing interest in identifying the effects of antidiabetic agents on cancer risk, progression, and anti-cancer treatment due to the long-term use of these medications and the inherently increased risk of malignancies in diabetic patients. Tumor development and progression are affected by multiple mediators in the tumor microenvironment, several of which may be proteolytically modified by the multifunctional protease dipeptidyl peptidase-IV (DPP-IV, CD26). Currently, low-molecular-weight DPP-IV inhibitors (gliptins) are used in patients with type 2 diabetes based on the observation that DPP-IV inhibition enhances insulin secretion by increasing the bioavailability of incretins. However, the DPP-IV-mediated cleavage of other biopeptides and chemokines is also prevented by gliptins. The potential utility of gliptins in other areas of medicine, including cancer, is therefore being evaluated. Here, we critically review the existing evidence on the role of DPP-IV inhibitors in cancer pathogenesis, their potential to be used in anti-cancer treatment, and the possible perils associated with this approach. Abstract Dipeptidyl peptidase IV (DPP-IV, CD26) is frequently dysregulated in cancer and plays an important role in regulating multiple bioactive peptides with the potential to influence cancer progression and the recruitment of immune cells. Therefore, it represents a potential contributing factor to cancer pathogenesis and an attractive therapeutic target. Specific DPP-IV inhibitors (gliptins) are currently used in patients with type 2 diabetes mellitus to promote insulin secretion by prolonging the activity of the incretins glucagon-like peptide 1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP). Nevertheless, the modulation of the bioavailability and function of other DPP-IV substrates, including chemokines, raises the possibility that the use of these orally administered drugs with favorable side-effect profiles might be extended beyond the treatment of hyperglycemia. In this review, we critically examine the possible utilization of DPP-IV inhibition in cancer prevention and various aspects of cancer treatment and discuss the potential perils associated with the inhibition of DPP-IV in cancer. The current literature is summarized regarding the possible chemopreventive and cytotoxic effects of gliptins and their potential utility in modulating the anti-tumor immune response, enhancing hematopoietic stem cell transplantation, preventing acute graft-versus-host disease, and alleviating the side-effects of conventional anti-tumor treatments.
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SGLT-2 Inhibitors in NAFLD: Expanding Their Role beyond Diabetes and Cardioprotection. Int J Mol Sci 2022; 23:ijms23063107. [PMID: 35328527 PMCID: PMC8953901 DOI: 10.3390/ijms23063107] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/03/2022] [Accepted: 03/09/2022] [Indexed: 12/16/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is an ‘umbrella’ term, comprising a spectrum ranging from benign, liver steatosis to non-alcoholic steatohepatitis, liver fibrosis and eventually cirrhosis and hepatocellular carcinoma. NAFLD has evolved as a major health problem in recent years. Discovering ways to prevent or delay the progression of NAFLD has become a global focus. Lifestyle modifications remain the cornerstone of NAFLD treatment, even though various pharmaceutical interventions are currently under clinical trial. Among them, sodium-glucose co-transporter type-2 inhibitors (SGLT-2i) are emerging as promising agents. Processes regulated by SGLT-2i, such as endoplasmic reticulum (ER) and oxidative stress, low-grade inflammation, autophagy and apoptosis are all implicated in NAFLD pathogenesis. In this review, we summarize the current understanding of the NAFLD pathophysiology, and specifically focus on the potential impact of SGLT-2i in NAFLD development and progression, providing current evidence from in vitro, animal and human studies. Given this evidence, further mechanistic studies would advance our understanding of the exact mechanisms underlying the pathogenesis of NAFLD and the potential beneficial actions of SGLT-2i in the context of NAFLD treatment.
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Yang XD, Chen Z, Ye L, Chen J, Yang YY. Esculin protects against methionine choline-deficient diet-induced non-alcoholic steatohepatitis by regulating the Sirt1/NF- κB p65 pathway. PHARMACEUTICAL BIOLOGY 2021; 59:922-932. [PMID: 34243681 PMCID: PMC8274538 DOI: 10.1080/13880209.2021.1945112] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 05/10/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
CONTEXT Esculin, an active coumarin compound, has been demonstrated to exert anti-inflammatory effects. However, its potential role in non-alcoholic steatohepatitis (NASH) remains unclear. OBJECTIVE This study explored the hepatoprotective effect and the molecular mechanism of esculin in methionine choline-deficient (MCD) diet-induced NASH. MATERIALS AND METHODS Fifty C57BL/6J mice were divided into five groups: control, model, low dosage esculin (oral, 20 mg/kg), high dosage esculin (oral, 40 mg/kg), and silybin (oral, 105 mg/kg). All animals were fed a MCD diet, except those in the control group (control diet), for 6 weeks. RESULTS Esculin (20 and 40 mg/kg) inhibited MCD diet-induced hepatic lipid content (triglyceride: 16.95 ± 0.67 and 14.85 ± 0.78 vs. 21.21 ± 1.13 mg/g; total cholesterol: 5.10 ± 0.34 and 4.08 ± 0.47 vs. 7.31 ± 0.58 mg/g), fibrosis, and inflammation (ALT: 379.61 ± 40.30 and 312.72 ± 21.45 vs. 559.51 ± 37.01 U/L; AST: 428.22 ± 34.29 and 328.23 ± 23.21 vs. 579.36 ± 31.93 U/L). In vitro, esculin reduced tumour necrosis factor-α, interleukin-6, fibronectin, and collagen 4A1 levels, but had no effect on lipid levels in HepG2 cells induced by free fatty acid. Esculin increased Sirt1 expression levels and decreased NF-κB acetylation levels in vivo and in vitro. Interfering with Sirt1 expression attenuated the beneficial effect of esculin on inflammatory and fibrotic factor production in HepG2 cells. CONCLUSIONS These findings demonstrate that esculin ameliorates MCD diet-induced NASH by regulating the Sirt1/ac-NF-κB signalling pathway. Esculin could thus be employed as a therapy for NASH.
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Affiliation(s)
- Xi-Ding Yang
- Department of Pharmacy, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Hunan Provincial Engineering Research Central of Translational Medical and Innovative Drug, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Zhuo Chen
- Department of Geriatrics, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ling Ye
- Department of Geriatrics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Jing Chen
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, China
| | - Yong-Yu Yang
- Department of Pharmacy, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Hunan Provincial Engineering Research Central of Translational Medical and Innovative Drug, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
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Xiao L, Nie X, Cheng Y, Wang N. Sodium-Glucose Cotransporter-2 Inhibitors in Vascular Biology: Cellular and Molecular Mechanisms. Cardiovasc Drugs Ther 2021; 35:1253-1267. [PMID: 34273091 DOI: 10.1007/s10557-021-07216-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/07/2021] [Indexed: 12/16/2022]
Abstract
Sodium-glucose cotransporter-2 (SGLT2) inhibitors are new antidiabetic drugs that reduce hyperglycemia by inhibiting the glucose reabsorption in renal proximal tubules. Clinical studies have shown that SGLT2 inhibitors not only improve glycemic control but also reduce major adverse cardiovascular events (MACE, cardiovascular and total mortality, fatal or nonfatal myocardial infarction or stroke) and hospitalization for heart failure (HF), and improve outcome in chronic kidney disease. These cardiovascular and renal benefits have now been confirmed in both diabetes and non-diabetes patients. The precise mechanism(s) responsible for the protective effects are under intensive investigation. This review examines current evidence on the cardiovascular benefits of SGLT2 inhibitors, with a special emphasis on the vascular actions and their potential mechanisms.
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Affiliation(s)
- Lei Xiao
- Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Xin Nie
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China
| | - Yanyan Cheng
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China
| | - Nanping Wang
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, and Institute of Cardiovascular Science, Peking University Health Science Center, Beijing, 100191, China.
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Noguchi R, Kaji K, Namisaki T, Moriya K, Kawaratani H, Kitade M, Takaya H, Aihara Y, Douhara A, Asada K, Nishimura N, Miyata T, Yoshiji H. Novel oral plasminogen activator inhibitor‑1 inhibitor TM5275 attenuates hepatic fibrosis under metabolic syndrome via suppression of activated hepatic stellate cells in rats. Mol Med Rep 2020; 22:2948-2956. [PMID: 32945412 PMCID: PMC7453658 DOI: 10.3892/mmr.2020.11360] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 07/03/2020] [Indexed: 02/07/2023] Open
Abstract
An orally bioavailable small molecule inhibitor of plasminogen activator inhibitor-1 (PAI-1) is currently being clinically assessed as a novel antithrombotic agent. Although PAI-1 is known to serve a key role in the pathogenesis of metabolic syndrome (MetS) including nonalcoholic steatohepatitis (NASH), the pharmacological action of an oral PAI-1 inhibitor against the development of MetS-related liver fibrosis remains unclear. The current study was designed to explicate the effect of TM5275, an oral PAI-1 inhibitor, on MetS-related hepatic fibrogenesis. The in vivo antifibrotic effect of orally administered TM5275 was investigated in two different rat MetS models. Fischer 344 rats received a choline-deficient L-amino-acid-defined diet for 12 weeks to induce steatohepatitis with development of severe hepatic fibrosis. Otsuka Long-Evans Tokushima Fatty rats, used to model congenital diabetes, underwent intraperitoneal injection of porcine serum for 6 weeks to induce hepatic fibrosis under diabetic conditions. In each experimental model, TM5275 markedly ameliorated the development of hepatic fibrosis and suppressed the proliferation of activated hepatic stellate cells (HSCs). Additionally, the hepatic production of tumor growth factor (TGF)-β1 and total collagen was suppressed. In vitro assays revealed that TGF-β1 stimulated the upregulation of Serpine1 mRNA expression, which was inhibited by TM5275 treatment in cultured HSC-T6 cells, a rat HSC cell line. Furthermore, TM5275 substantially attenuated the TGF-β1-stimulated proliferative and fibrogenic activity of HSCs by inhibiting AKT phosphorylation. Collectively, TM5275 demonstrated an antifibrotic effect on liver fibrosis in different rat MetS models, suppressing TGF-β1-induced HSC proliferation and collagen synthesis. Thus, PAI-1 inhibitors may serve as effective future therapeutic agents against NASH-based hepatic fibrosis.
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Affiliation(s)
- Ryuichi Noguchi
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Kosuke Kaji
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Tadashi Namisaki
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Kei Moriya
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Hideto Kawaratani
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Mitsuteru Kitade
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Hiroaki Takaya
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Yosuke Aihara
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Akitoshi Douhara
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Kiyoshi Asada
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Norihisa Nishimura
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
| | - Toshio Miyata
- United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi 980‑8575, Japan
| | - Hitoshi Yoshiji
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara 634‑8522, Japan
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