Logo Medical Science Monitor

Call: +1.631.470.9640
Mon - Fri 10:00 am - 02:00 pm EST

Contact Us

Logo Medical Science Monitor Logo Medical Science Monitor Logo Medical Science Monitor

17 November 2017 : Laboratory Research  

Intermedin Ameliorates Atherosclerosis by Increasing Cholesterol Efflux Through the cAMP-PKA Pathway in Macrophage RAW264.7 Cell Line

Hang Liao1ABCDEF, Shixi Wan1ABEF, Xin Zhang1ABC, Di Shi1ABF, Xiaojiang Zhu1AB, Xiaoping Chen1AE*

DOI: 10.12659/MSM.907298

Med Sci Monit 2017; 23:5462-5471

Abstract

BACKGROUND: The aim of this study was to explore the role of intermedin and its mechanism in cholesterol efflux of macrophage THP-1 and RAW264.7 cell lines in atherosclerosis (AS).

MATERIAL AND METHODS: ApoE–/– mice were fed with a high-fat diet, and the concentrations of total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C) were measured. The lipidoses of the aortic sinus were analyzed by hematoxylin and eosin staining, and the cAMP level was detected by enzyme-linked immunosorbent assay (ELISA). The expressions of ATP-binding cassette transporter (ABCA1) were tested by real-time PCR and Western blot analysis.

RESULTS: IMD decreased serum TC and LDL-C, and increased serum HDL-C level in apoE–/– mice and attenuated AS plaque areas. In vitro, IMD increased intracellular cAMP concentration in a dose-dependent manner in THP-1 and RAW264.7 cell lines, which enhanced the expression of ABCA1 and increased cholesterol efflux rate. However, this effect was inhibited by PKAI in the RAW 264.7 cell line but not in the THP-1 cell line.

CONCLUSIONS: IMD can ameliorate the development of AS in ApoE–/– mice and regulate cholesterol balance in the RAW264.7 cell line through the cAMP-PKA pathway.

Keywords: atherosclerosis, ATP Binding Cassette Transporter 1, Cyclic AMP-Dependent Protein Kinase RIalpha Subunit, Cyclic AMP-Dependent Protein Kinases

0 Comments

Editorial

01 November 2021 : Editorial  

Editorial: What Can be Learned from National and International Vaccine Adverse Event Reporting Systems During the COVID-19 Pandemic?

Dinah V. Parums
Scientific Editor, Medical Science Monitor, International Scientific Information, Inc., Melville, NY, USA

DOI: 10.12659/MSM.935299

Med Sci Monit 2022; 28:e935299

SARS-CoV-2/COVID-19

26 November 2021 : Editorial  

Editorial: SARS-CoV-2 Vaccine Responses and Breakthrough COVID-19

Med Sci Monit In Press; DOI: 10.12659/MSM.935624  

08 November 2021 : Database Analysis  

Virtual Screening and Molecular Docking to Study the Mechanism of Chinese Medicines in the Treatment of Cor...

Med Sci Monit In Press; DOI: 10.12659/MSM.934102  

25 November 2021 : Clinical Research  

Use of Monoclonal Antibodies Therapy for Treatment of Mild to Moderate COVID-19 in 4 Patients with Rheumato...

Med Sci Monit 2021; 27:e934267

In Press

29 Nov 2021 : Database Analysis  

Integrated Analysis of Angiogenesis-Mediated Tumor Immune Microenvironment Pattern in Hepatocellular Carcin...

Med Sci Monit In Press; DOI: 10.12659/MSM.934937  

26 Nov 2021 : Clinical Research  

Serum Uric Acid Levels in Relation to Atrial Fibrillation: A Case-Control Study

Med Sci Monit In Press; DOI: 10.12659/MSM.934007  

26 Nov 2021 : Database Analysis  

Network Pharmacology Integrated Molecular Docking Revealed the Mechanism of Jianpi Yiqi Taohua Decoction Ag...

Med Sci Monit In Press; DOI: 10.12659/MSM.933537  

26 Nov 2021 : Editorial  

Editorial: SARS-CoV-2 Vaccine Responses and Breakthrough COVID-19

Med Sci Monit In Press; DOI: 10.12659/MSM.935624  

Most Viewed Current Articles

20 Mar 2020 : Clinical Research  

Social Capital and Sleep Quality in Individuals Who Self-Isolated for 14 Days During the Coronavirus Diseas...

DOI :10.12659/MSM.923921

Med Sci Monit 2020; 26:e923921

15 Apr 2020 : Clinical Research  

Psychological Impact and Coping Strategies of Frontline Medical Staff in Hunan Between January and March 20...

DOI :10.12659/MSM.924171

Med Sci Monit 2020; 26:e924171

05 May 2020 : Review article  

An Evidence Based Perspective on mRNA-SARS-CoV-2 Vaccine Development

DOI :10.12659/MSM.924700

Med Sci Monit 2020; 26:e924700

26 Apr 2020 : Clinical Research  

Comparison of Prevalence and Associated Factors of Anxiety and Depression Among People Affected by versus P...

DOI :10.12659/MSM.924609

Med Sci Monit 2020; 26:e924609

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750