Corporate Banner
Satellite Banner
Technology
Networks
Scientific Communities
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Oxygen Starvation Regulates Fat Cells in Obesity

Published: Monday, September 30, 2013
Last Updated: Monday, September 30, 2013
Bookmark and Share
Studies of the effects of oxygen deprivation in the body fat of obese animals have revealed links with the regulation of fat cell generation.

Researchers at Kanazawa University have identified the role of the protein TIS7 in processes that regulate adipogenesis, whereby non-specialised cells become adipose or fat cells. They add, “TIS7 could be a target for the discovery and development of a drug useful for the treatment and therapy of obesity or a variety of obesity-related metabolic diseases including type-2 diabetes and atherosclerosis.”

Adipose tissue is essential for whole body homeostasis, storing excess energy and potentially a number of other physiological processes. Deregulation of these functions is found in obesity, prompting further study of the mechanisms behind white adipose tissue development.

Adipose tissue is poorly oxygenated in obese humans and animals. Poor oxygenation or ‘hypoxia’ has been linked to a number of diseases including heart and lung disorders, anemia, and circulation problems. There have also been reports indicating that the protein TIS7 is expressed in tissues following injuries, such as ischemia, stroke or muscle trauma. Yukio Yoneda and colleagues at the University of Kanazawa monitored TIS7 expression in vitro and found that it was drastically increased by hypoxic stress.

The researchers then compared mice fed different diets and found significant up-regulation of TIS7 in the white adipose tissue of mice fed a high fat diet. Following further studies of various aspects of adipogenesis and the role of hypoxia and TIS7, the researchers conclude, “It thus appears that TIS7 is a novel pivotal transcriptional regulator of hypoxia-induced repression of adipogenesis.” They add that further studies are needed to understand the exact mechanism underlying the up-regulation of TIS7 under hypoxia in cells prior to adipogenesis.

Publication and Affiliation

Yukari Nakamura 1, Eiichi Hinoi 1, Takashi Iezaki, Saya Takada, Syota Hashizume, Yoshifumi Takahata, Emiko Tsuruta, Satoshi Takahashi, Yukio Yoneda *

Repression of adipogenesis through promotion of Wnt/β-catenin signaling by TIS7 up-regulated in adipocytes under hypoxia. Biochimica et Biophysica Acta 1832 (2013) 1117–1128

1. Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School,Kanazawa, Ishikawa 920-1192, Japan

*corresponding author, e-mail address: yyoneda@p.kanazawa-u.ac.jp

1 These authors equally contributed to this work.


Further Information
Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 2,500+ scientific posters on ePosters
  • More Than 3,800+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Related Content

Chemical Synthesis: A Simple Technique for Highly Functionalized Compounds
Researchers at Kanazawa University have demonstrated a technique that allows direct functionalization of alkenes without the need for metallic reagents, photolysis or extreme reaction conditions.
Monday, September 30, 2013
Scientific News
NIH Study Finds Calorie Restriction Lowers Some Risk Factors for Age-Related Diseases
Two-year trial did not produce expected metabolic changes, but influenced other life span markers.
Immunotherapy Agent Benefits Patients with Drug-Resistant Multiple Myeloma in First Human Trial
Daratumumab proved generally safe in patients, even at the highest doses.
Low-level Arsenic Exposure Before Birth Associated with Early Puberty in Female Mice
Study examine whether low-dose arsenic exposure could have similar health outcomes in humans.
Inciting an Immune Attack On Cancer Cells
A new minimally invasive vaccine that combines cancer cells and immune-enhancing factors could be used clinically to launch a destructive attack on tumors.
‘Mutation-Tracking’ Blood Test for Breast Cancer
Scientists have developed a blood test for breast cancer able to identify which patients will suffer a relapse after treatment, months before tumours are visible on hospital scans.
Cellular Contamination Pathway for Heavy Elements Identified
Berkeley Lab scientists find that an iron-binding protein can transport actinides into cells.
Intensity of Desert Storms May Affect Ocean Phytoplankton
MIT study finds phytoplankton are extremely sensitive to changing levels of desert dust.
Common ‘Heart Attack’ Blood Test May Predict Future Hypertension
Small rises in troponin levels may have value as markers for subclinical heart damage and high blood pressure.
LaVision BioTec Reports on the Neuro Research on the Human Brain After Trauma
Company reports on the work of Dr Ali Ertürk from the Institute for Stroke and Dementia Research at LMU Munich.
NIH Study Shows No Benefit of Omega-3 Supplements for Cognitive Decline
Research was published in the Journal of the American Medical Association.
Scroll Up
Scroll Down
Skyscraper Banner

Skyscraper Banner
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
2,500+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
3,800+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FREE!