ProHealth health Vitamin and Natural Supplement Store and Health
Log In  |  My Account  |  View Cart  View Your ProHealth Vitamin and Supplement Shopping Cart
800-366-6056  |  Contact Us  |  Help

|
|
|
|

Trending News

New Lyme guidelines promote options and informed choice

Phases of clinical depression could affect treatment

“Worm pill” could ease autoimmune disease symptoms

Eating Baked or Broiled Fish Weekly Boosts Brain Health, Pitt Study Says

Preserving Cognitive Function with Aging

Scientists Look for Biomarkers to Improve Treatment of Painful Bladder Condition

New culprit identified in metabolic syndrome

Low vitamin D levels linked to increased risks after noncardiac surgery

9 Health Benefits of Cucumbers

Irritable Bowel Syndrome: Unlocking the Secrets of Peppermint, Acacia and Fennel

 
Print Page
Email Article

How immune cells use steroids

  [ 9 votes ]   [ Discuss This Article ]
www.ProHealth.com • May 13, 2014


How immune cells use steroids
Editor's Comment: The immune system alteration known as the Th1/Th2 shift has been associated with aging and with certain disease processes, such as diabetes and acute pancreatitis. The Th1/Th2 shift has also been implicated in ME/CFS. In this shift the immune system focuses more on pathogens outside the cell than on those within cells, such as viruses. The Th1/Th2 shift has been proposed as the reason for latent virus reactivation in ME/CFS patients. This study found that not only does the shift alter immune function, but a steroid released by Th2 cytokines, pregnenolone, acts as an immune system suppressant.

Press Release:  European Bioinformatics Institute EMBL-EBI, Hinxton, 8 May 2014 
 
Researchers at the European Bioinformatics Institute (EMBL-EBI) and the Wellcome Trust Sanger Institute have discovered that some immune cells turn themselves off by producing a steroid. The findings, published in Cell Reports, have implications for the study of cancers, autoimmune diseases and parasitic infections.

If you've ever used a steroid, for example cortisone cream on eczema, you'll have seen first-hand how efficient steroids are at suppressing the immune response. Normally, when your body senses that immune cells have finished their job, it produces steroids -but which cells actually do that?

In this latest study, scientists looked at Th2 immune cells during parasitic infection and saw that at a certain point, these cells produce a steroid called pregnenolone.

"We were really surprised to see that these immune cells are producing a steroid. In cell culture, we see that the steroids play a part in regulating T cell proliferation," says Bidesh Mahata in the Teichmann group at EMBL-EBI and Sanger, who designed the study. "We had already seen that T-helper cells were producing steroids, but initially we were blind -- what was going on?"

"Because we had access to data from single-cell sequencing experiments, we could conduct deep statistical analyses on a very large and comprehensive dataset," explains Sarah. "That pointed us to the genes involved in pregnenolone production at the point when Th2 cells are being produced, and we could deduce that the Th2 cells themselves were involved in immunosuppression."

The researchers suggest that bringing the immune system back into balance is an intrinsic part of this particular immune response.

"We confirmed our findings experimentally, showing that pregnenolone inhibits both Th cell proliferation and B cell immunoglobulin class switching," adds Bidesh. "We think this points to the idea that Th2 cells differentiate into steroid-producing cells as part of a larger mechanism to bring the immune system back into balance."

The findings from this study are strengthened by those of the Gelfand group at National Jewish Health in Denver, US. The next step for the Genome Campus group is to figure out how the process starts, what other tissues are involved and which types of infection give rise to this response.

Journal Reference: Bidesh Mahata et al. Single-Cell RNA Sequencing Reveals T Helper Cells Synthesizing Steroids De Novo to Contribute to Immune Homeostasis. Cell Reports, May 2014 DOI: 10.1016/j.celrep.2014.04.011


Please Discuss This Article:   Post a Comment 



[ Be the first to comment on this article ]




 
Free Chronic Fatigue Syndrome and Fibromyalgia Newsletters
Subscribe to
Our FREE
Newsletter
Subscribe Now!
Receive up-to-date ME/CFS & Fibromyalgia treatment and research news
 Privacy Guaranteed  |  View Archives

Save on Your Next Order

Featured Products

Optimized Curcumin Longvida® by ProHealth Optimized Curcumin Longvida® by ProHealth
Supports Cognition, Memory & Overall Health
Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium
Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils
FibroSleep™ by ProHealth FibroSleep™ by ProHealth
The All-in-One Natural Sleep Aid

Natural Remedies

Research Links Green Tea to Weight Loss Research Links Green Tea to Weight Loss
Front Line Defense Against Colds & Flu - Support for Healthy Immune System Balance Front Line Defense Against Colds & Flu - Support for Healthy Immune System Balance
Anti-Inflammatory Properties of Tart Cherry Anti-Inflammatory Properties of Tart Cherry
Repair Damaged Mitochondria and Reduce Fatigue Up to 45% Repair Damaged Mitochondria and Reduce Fatigue Up to 45%
Why Berries Offer a Rainbow of Health Benefits Why Berries Offer a Rainbow of Health Benefits

FIBROMYALGIA RESOURCES
What is Fibromyalgia?
Fibromyalgia 101
Fibromyalgia Symptoms
Fibromyalgia Treatments
| CFS RESOURCES
What is CFS?
ME/CFS 101
ME/CFS Symptoms
ME/CFS Treatments
| FORUMS
Fibromyalgia
ME/CFS
ADVANCED MEDICAL LABS
WHOLESALE  |  AFFILIATES
GUARANTEE
CONTACT US
PRIVACY
RSS
SITE MAP
ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus
Credit Card Processing