1
|
Nickel L, Sünderhauf A, Rawish E, Stölting I, Derer S, Thorns C, Matschl U, Othman A, Sina C, Raasch W. The AT1 Receptor Blocker Telmisartan Reduces Intestinal Mucus Thickness in Obese Mice. Front Pharmacol 2022; 13:815353. [PMID: 35431918 PMCID: PMC9009210 DOI: 10.3389/fphar.2022.815353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
The angiotensin II (type 1) (AT1) receptor blocker telmisartan (TEL) is beneficial for the treatment of individuals suffering from metabolic syndrome. As we have shown that TEL has an impact on gut microbiota, we investigated here whether TEL influences gut barrier function. C57BL/6N mice were fed with chow or high-fat diet (HFD) and treated with vehicle or TEL (8 mg/kg/day). Mucus thickness was determined by immunohistochemistry. Periodic Acid-Schiff staining allowed the number of goblet cells to be counted. Using western blots, qPCR, and immunohistochemistry, factors related to mucus biosynthesis (Muc2, St6galnac), proliferation (Ki-67), or necroptosis (Rip3) were measured. The influence on cell viability was determined in vitro by using losartan, as the water solubility of TEL was too low for in vitro experiments. Upon HFD, mice developed obesity as well as leptin and insulin resistance, which were prevented by TEL. Mucus thickness upon HFD-feeding was diminished. Independent of feeding, TEL additionally reduced mucus thickness. Numbers of goblet cells were not affected by HFD-feeding and TEL. St6galnac expression was increased by TEL. Rip3 was increased in TEL-treated and HFD-fed mice, while Ki-67 decreased. Cell viability was diminished by using >1 mM losartan. The anti-obese effect of TEL was associated with a decrease in mucus thickness, which was likely not related to a lower expression of Muc2 and goblet cells. A decrease in Ki-67 and increase in Rip3 indicates lower cell proliferation and increased necroptosis upon TEL. However, direct cell toxic effects are ruled out, as in vivo concentrations are lower than 1 mM.
Collapse
Affiliation(s)
- Laura Nickel
- Institute of Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Lübeck, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
| | - Annika Sünderhauf
- Division of Nutritional Medicine, University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Elias Rawish
- Institute of Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Lübeck, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
| | - Ines Stölting
- Institute of Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Lübeck, Germany
| | - Stefanie Derer
- Division of Nutritional Medicine, University Hospital Schleswig-Holstein, Lübeck, Germany
| | | | - Urte Matschl
- Department Virus Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Alaa Othman
- CBBM (Centre of Brain, Behaviour and Metabolism), University of Lübeck, Lübeck, Germany
- Institute for Clinical Chemistry, University Hospital Zürich, Zürich, Germany
| | - Christian Sina
- Division of Nutritional Medicine, University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Walter Raasch
- Institute of Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Lübeck, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Germany
- CBBM (Centre of Brain, Behaviour and Metabolism), University of Lübeck, Lübeck, Germany
- *Correspondence: Walter Raasch,
| |
Collapse
|
2
|
Olatunde A, Nigam M, Singh RK, Panwar AS, Lasisi A, Alhumaydhi FA, Jyoti Kumar V, Mishra AP, Sharifi-Rad J. Cancer and diabetes: the interlinking metabolic pathways and repurposing actions of antidiabetic drugs. Cancer Cell Int 2021; 21:499. [PMID: 34535145 PMCID: PMC8447515 DOI: 10.1186/s12935-021-02202-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 09/06/2021] [Indexed: 12/18/2022] Open
Abstract
Cancers are regarded as one of the main causes of death and result in high health burden worldwide. The management of cancer include chemotherapy, surgery and radiotherapy. The chemotherapy, which involves the use of chemical agents with cytotoxic actions is utilised as a single treatment or combined treatment. However, these managements of cancer such as chemotherapy poses some setbacks such as cytotoxicity on normal cells and the problem of anticancer drug resistance. Therefore, the use of other therapeutic agents such as antidiabetic drugs is one of the alternative interventions used in addressing some of the limitations in the use of anticancer agents. Antidiabetic drugs such as sulfonylureas, biguanides and thiazolidinediones showed beneficial and repurposing actions in the management of cancer, thus, the activities of these drugs against cancer is attributed to some of the metabolic links between the two disorders and these includes hyperglycaemia, hyperinsulinemia, inflammation, and oxidative stress as well as obesity. Furthermore, some studies showed that the use of antidiabetic drugs could serve as risk factors for the development of cancerous cells particularly pancreatic cancer. However, the beneficial role of these chemical agents overweighs their detrimental actions in cancer management. Hence, the present review indicates the metabolic links between cancer and diabetes and the mechanistic actions of antidiabetic drugs in the management of cancers.
Collapse
Affiliation(s)
- Ahmed Olatunde
- Department of Biochemistry, Abubakar Tafawa Balewa University, Bauchi, 740272, Nigeria
| | - Manisha Nigam
- Department of Biochemistry, School of Life Sciences, Hemvati Nandan Bahuguna Garhwal University, Srinagar, Garhwal, Uttarakhand, 246174, India.
| | - Rahul Kunwar Singh
- Department of Microbiology, School of Life Sciences, Hemvati Nandan Bahuguna Garhwal University, Srinagar, Garhwal, Uttarakhand, 246174, India
| | - Abhaya Shikhar Panwar
- Department of Biochemistry, School of Life Sciences, Hemvati Nandan Bahuguna Garhwal University, Srinagar, Garhwal, Uttarakhand, 246174, India
| | - Abdulwahab Lasisi
- Maidstone and Tunbridge Wells NHS Trust, Hermitage Lane, Maidstone, Kent, ME169QQ, UK
| | - Fahad A Alhumaydhi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Vijay Jyoti Kumar
- Department of Pharmaceutical Sciences, Hemvati Nandan Bahuguna Garhwal University, Garhwal, Srinagar, Uttarakhand, 246174, India
| | - Abhay Prakash Mishra
- Department of Pharmacology, School of Clinical Medicine, Faculty of Health Science, University of Free State, 205, Nelson Mandela Drive, Park West, Bloemfontein, 9300, South Africa
| | - Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
3
|
Luo Y, Xie C, Brocker CN, Fan J, Wu X, Feng L, Wang Q, Zhao J, Lu D, Tandon M, Cam M, Krausz KW, Liu W, Gonzalez FJ. Intestinal PPARα Protects Against Colon Carcinogenesis via Regulation of Methyltransferases DNMT1 and PRMT6. Gastroenterology 2019; 157:744-759.e4. [PMID: 31154022 PMCID: PMC7388731 DOI: 10.1053/j.gastro.2019.05.057] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 05/08/2019] [Accepted: 05/17/2019] [Indexed: 12/30/2022]
Abstract
BACKGROUND & AIMS Many genetic and environmental factors, including family history, dietary fat, and inflammation, increase risk for colon cancer development. Peroxisome proliferator-activated receptor alpha (PPARα) is a nuclear receptor that regulates systemic lipid homeostasis. We explored the role of intestinal PPARα in colon carcinogenesis. METHODS Colon cancer was induced in mice with intestine-specific disruption of Ppara (PparaΔIE), Pparafl/fl (control), and mice with disruption of Ppara that express human PPARA (human PPARA transgenic mice), by administration of azoxymethane with or without dextran sulfate sodium (DSS). Colons were collected from mice and analyzed by immunoblots, quantitative polymerase chain reaction, and histopathology. Liquid chromatography coupled with mass spectrometry-based metabolomic analyses were performed on urine and colons. We used molecular biology and biochemical approaches to study mechanisms in mouse colons, primary intestinal epithelial cells, and colon cancer cell lines. Gene expression data and clinical features of patients with colorectal tumors were obtained from Oncomine, and human colorectal-tumor specimens and adjacent normal tissues were collected and analyzed by immunohistochemistry. RESULTS Levels of Ppara messenger RNA were reduced in colon tumors from mice. PparaΔIE mice developed more and larger colon tumors than control mice following administration of azoxymethane, with or without DSS. Metabolomic analyses revealed increases in methylation-related metabolites in urine and colons from PparaΔIE mice, compared with control mice, following administration of azoxymethane, with or without DSS. Levels of DNA methyltransferase 1 (DNMT1) and protein arginine methyltransferase 6 (PRMT6) were increased in colon tumors from PparaΔIE mice, compared with colon tumors from control mice. Depletion of PPARα reduced the expression of retinoblastoma protein, resulting in increased expression of DNMT1 and PRMT6. DNMT1 and PRMT6 decreased expression of the tumor suppressor genes Cdkn1a (P21) and Cdkn1b (p27) via DNA methylation and histone H3R2 dimethylation-mediated repression of transcription, respectively. Fenofibrate protected human PPARA transgenic mice from azoxymethane and DSS-induced colon cancer. Human colon adenocarcinoma specimens had lower levels of PPARA and retinoblastoma protein and higher levels of DNMT1 and PRMT6 than normal colon tissues. CONCLUSIONS Loss of PPARα from the intestine promotes colon carcinogenesis by increasing DNMT1-mediated methylation of P21 and PRMT6-mediated methylation of p27 in mice. Human colorectal tumors have lower levels of PPARA messenger RNA and protein than nontumor tissues. Agents that activate PPARα might be developed for chemoprevention or treatment of colon cancer.
Collapse
Affiliation(s)
- Yuhong Luo
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Cen Xie
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Chad N. Brocker
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jie Fan
- Department of Pathology, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Xuan Wu
- Central Laboratory and Department of Laboratory Medicine, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, 200070, China,Department of Laboratory Medicine, Shanghai Skin Disease Hospital, Tongji University, Shanghai, 200072, China
| | - Lijin Feng
- Department of Pathology, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, 200070, China
| | - Qiong Wang
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jie Zhao
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Dasheng Lu
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Mayank Tandon
- CCR Collaborative Bioinformatics Resource, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA,Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research, Frederick, MD 21701, USA
| | - Maggie Cam
- CCR Collaborative Bioinformatics Resource, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Kristopher W. Krausz
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Weiwei Liu
- Central Laboratory and Department of Laboratory Medicine, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China; Department of Laboratory Medicine, Shanghai Skin Disease Hospital, Tongji University, Shanghai, China.
| | - Frank J. Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA,Correspondence Weiwei Liu. Central Laboratory and Department of Laboratory Medicine, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, 200070, China. Tel: +86-21-6630-6905; , Frank J. Gonzalez. Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA. Tel: 1-240-760-6875;
| |
Collapse
|
4
|
Zhao J, Zhao R, Cheng L, Yang J, Zhu L. Peroxisome proliferator-activated receptor gamma activation promotes intestinal barrier function by improving mucus and tight junctions in a mouse colitis model. Dig Liver Dis 2018; 50:1195-1204. [PMID: 29891333 DOI: 10.1016/j.dld.2018.04.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 04/17/2018] [Accepted: 04/19/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS Defects in mucus and intestinal epithelia can lead to intestinal inflammation in colitis. Reduced peroxisome proliferator-activated receptor gamma (PPARγ) in the mucosa may contribute to inflammation. However, the roles of PPARγ in the intestinal barrier remain poorly understood. METHODS Chronic colitis was induced in C57BL/6 mice by administration of dextran sulfate sodium (DSS) for 27 days. Three days before DSS treatment, mice were treated with the PPARγ agonist rosiglitazone (Ro) orally at 20 mg kg-1 day-1. RESULTS The colitis based on disease activity index and colonic histopathology was significantly ameliorated in the DSS + Ro group. Additionally, mice in the DSS + Ro group had a thicker mucous layer than those in DSS + NS group, and muc2 mRNA expression was elevated significantly along with the mouse atonal homolog, SAM-pointed domain-containing Ets-like factor, and anterior gradient 2 genes. Moreover, tight junctions were up-regulated, whereas long myosin light chain kinase and phosphorylation of the myosin II light chain were lower in DSS + Ro mice. Similarly, after HT-29 and Caco-2 cells were treated by LPS or LPS + Ro, PPARγ activation by Ro could effectively improve the intestinal barrier, including intestinal mucus and tight junctions. CONCLUSIONS Our results demonstrate that activated PPARγ could effectively promote intestinal mucus integrity by increasing the number of goblet cells, the glycosylation of mucins, and tight junctions via an MLCK-dependent mechanism.
Collapse
Affiliation(s)
- Jinfang Zhao
- Division of Gastroenterology, Union Hospital, Tongji Medical College of Huazhong University of Science & Technology, Wuhan, China
| | - Ruifeng Zhao
- Division of Gastroenterology, Union Hospital, Tongji Medical College of Huazhong University of Science & Technology, Wuhan, China
| | - Ling Cheng
- Division of Gastroenterology, Union Hospital, Tongji Medical College of Huazhong University of Science & Technology, Wuhan, China
| | - Jun Yang
- Division of Urology, Union Hospital, Tongji Medical College of Huazhong University of Science & Technology, Wuhan, China
| | - Liangru Zhu
- Division of Gastroenterology, Union Hospital, Tongji Medical College of Huazhong University of Science & Technology, Wuhan, China.
| |
Collapse
|
5
|
Chemotherapy and chemoprevention by thiazolidinediones. BIOMED RESEARCH INTERNATIONAL 2015; 2015:845340. [PMID: 25866814 PMCID: PMC4383438 DOI: 10.1155/2015/845340] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 07/29/2014] [Accepted: 08/27/2014] [Indexed: 12/13/2022]
Abstract
Thiazolidinediones (TZDs) are synthetic ligands of Peroxisome-Proliferator-Activated Receptor gamma (PPARγ). Troglitazone, rosiglitazone, and pioglitazone have been approved for treatment of diabetes mellitus type II. All three compounds, together with the first TZD ciglitazone, also showed an antitumor effect in preclinical studies and a beneficial effect in some clinical trials. This review summarizes hypotheses on the role of PPARγ in tumors, on cellular targets of TZDs, antitumor effects of monotherapy and of TZDs in combination with other compounds, with a focus on their role in the treatment of differentiated thyroid carcinoma. The results of chemopreventive effects of TZDs are also considered. Existing data suggest that the action of TZDs is highly complex and that actions do not correlate with cellular PPARγ expression status. Effects are cell-, species-, and compound-specific and concentration-dependent. Data from human trials suggest the efficacy of TZDs as monotherapy in prostate cancer and glioma and as chemopreventive agent in colon, lung, and breast cancer. TZDs in combination with other therapies might increase antitumor effects in thyroid cancer, soft tissue sarcoma, and melanoma.
Collapse
|
6
|
He XQ, Cichello SA, Duan JL, Zhou J. Canola oil influence on azoxymethane-induced colon carcinogenesis, hypertriglyceridemia and hyperglycemia in Kunming mice. Asian Pac J Cancer Prev 2014; 15:2477-83. [PMID: 24761850 DOI: 10.7314/apjcp.2014.15.6.2477] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Azoxymethane (AOM) is a potent genotoxic carcinogen which specifically induces colon cancer. Hyperlipidemia and diabetes have several influences on colon cancer development, with genetic and environmental exposure aspects. Here, we investigated plasma lipid and glucose concentrations in Kunming mice randomized into four groups; control (no AOM or oil exposure), AOM control, AOM + pork oil, and AOM + canola oil. Aberrant crypt foci (ACF), plasma cholesterol, plasma triglyceride, plasma glucose and organ weight were examined 32 weeks after AOM injection. Results revealed that AOM exposure significantly increased ACF number, plasma triglyceride and glucose level. Further, male mice displayed a much higher plasma triglyceride level than female mice in the AOM control group. Dietary fat significantly inhibited AOM-induced hypertriglyceridemia, and canola oil had stronger inhibitory effect than pork oil. AOM-induced hyperglycemia had no sex-difference and was not significantly modified by dietary fat. However, AOM itself not change plasma cholesterol level. AOM significantly increased liver and spleen weight in male mice, but decreased kidney weight in female mice. On the other hand, mice testis weight decreased when fed canola oil. AOM could induce colorectal carcinogenesis, hypertriglyceridemia and hyperglycemia in Kunming mice at the same time, with subsequent studies required to investigate their genome association.
Collapse
Affiliation(s)
- Xiao-Qiong He
- Institute of Nutrition and Food Science, School of Public Health, Kunming Medical College, Yunnan, China E-mail :
| | | | | | | |
Collapse
|