Featured Research

from universities, journals, and other organizations

Epigenetic enzyme regulates fat formation, researchers find

Date:
June 11, 2014
Source:
Albert-Ludwigs-Universität Freiburg
Summary:
The body reacts to environmental influences like cold or nutritional imbalance through adaptation. There is a change in metabolic processes in white adipose tissue in mammals. This results in the development of brown-like or beige fat cells, which are located in white fat depots and generate heat in response to cold exposure. Researchers have demonstrated that the levels of the epigenetic enzyme lysine-specific demethylase 1 (LSD1) increase in white adipose tissue in response to environmental stimuli such as cold and that this enzyme regulates the formation of beige fat cells.

The image shows adipose tissue of mice with normal (left) or increased (right) levels of LSD1. Increased levels of the enzyme promote the formation of beige fat, causing the mice to gain less weight.
Credit: Delphine Duteil

Freiburg researchers demonstrate that LSD1 plays a key role in metabolic processes The human body reacts to environmental influences like cold or nutritional imbalance through adaptation. There is a change in metabolic processes in white adipose tissue in mammals. This results in the development of brown-like or beige fat cells, which are located in white fat depots and generate heat in response to cold exposure.

A team led by Prof. Dr. Roland Schuele and Dr. Delphine Duteil from the Department of Urology and the Clinical Research Center at the Medical Center -- University of Freiburg demonstrated that the levels of the epigenetic enzyme lysine-specific demethylase 1 (LSD1) increase in white adipose tissue in response to environmental stimuli such as cold and that this enzyme regulates the formation of beige fat cells. Schuele is a member of the Cluster of Excellence BIOSS Centre for Biological Signalling Studies of the University of Freiburg and the head of the Collaborative Research Center 992 "Medical Epigenetics," which contributed funding to the project. The team published the findings in the online edition of the journal Nature Communications.

The Freiburg researchers showed that LSD1 controls genes that are crucial for the formation of fat. In experiments performed in cell culture or in mice, inhibition or the complete absence of LSD1 prevents the formation of fat.. This demonstrates that LSD1 is essential for the development of white adipose tissue. Increased levels of the enzyme in mice promoted the formation of islets of beige fat in white adipose tissue. These animals reacted more strongly to cold stimuli and produced beige fat more quickly. They also gained less weight and did not develop type 2 diabetes when fed a high-fat diet.

Increased levels of LSD1 in cell culture stimulated the activity of mitochondria, the power plants of the cell, leading to the generation of heat. The scientists observed that LSD1 promotes the expression of genes involved in metabolic processes and the respiratory chain. In addition, LSD1 promotes the expression of and interacts with the transcription factor nuclear respiratory factor 1 (Nrf1), which activates important mitochondrial genes.


Story Source:

The above story is based on materials provided by Albert-Ludwigs-Universität Freiburg. Note: Materials may be edited for content and length.


Journal Reference:

  1. Delphine Duteil, Eric Metzger, Dominica Willmann, Panagiota Karagianni, Nicolaus Friedrichs, Holger Greschik, Thomas Günther, Reinhard Buettner, Iannis Talianidis, Daniel Metzger, Roland Schüle. LSD1 promotes oxidative metabolism of white adipose tissue. Nature Communications, 2014; 5 DOI: 10.1038/ncomms5093

Cite This Page:

Albert-Ludwigs-Universität Freiburg. "Epigenetic enzyme regulates fat formation, researchers find." ScienceDaily. ScienceDaily, 11 June 2014. <www.sciencedaily.com/releases/2014/06/140611093346.htm>.
Albert-Ludwigs-Universität Freiburg. (2014, June 11). Epigenetic enzyme regulates fat formation, researchers find. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2014/06/140611093346.htm
Albert-Ludwigs-Universität Freiburg. "Epigenetic enzyme regulates fat formation, researchers find." ScienceDaily. www.sciencedaily.com/releases/2014/06/140611093346.htm (accessed July 31, 2014).

Share This




More Health & Medicine News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

House Republicans Vote to Sue Obama Over Healthcare Law

House Republicans Vote to Sue Obama Over Healthcare Law

Reuters - US Online Video (July 31, 2014) — The Republican-led House of Representatives votes to sue President Obama, accusing him of overstepping his executive authority in making changes to the Affordable Care Act. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com
Despite Health Questions, E-Cigs Are Beneficial: Study

Despite Health Questions, E-Cigs Are Beneficial: Study

Newsy (July 31, 2014) — Citing 81 previous studies, new research out of London suggests the benefits of smoking e-cigarettes instead of regular ones outweighs the risks. Video provided by Newsy
Powered by NewsLook.com
Dangerous Bacteria Kills One in Florida

Dangerous Bacteria Kills One in Florida

AP (July 31, 2014) — Sarasota County, Florida health officials have issued a warning against eating raw oysters and exposing open wounds to coastal and inland waters after a dangerous bacteria killed one person and made another sick. (July 31) Video provided by AP
Powered by NewsLook.com
Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) — Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



    Save/Print:
    Share:  

    Free Subscriptions


    Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

    Get Social & Mobile


    Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

    Have Feedback?


    Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
    Mobile iPhone Android Web
    Follow Facebook Twitter Google+
    Subscribe RSS Feeds Email Newsletters
    Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins