Navigation Links
Infant immune systems learn fast, but have short memories
Date:6/11/2014

ITHACA, N.Y. Forgetful immune systems leave infants particularly prone to infections, according to a new Cornell University study. Upending the common theory that weak immune cells are to blame, the study has found that infants' immune systems actually respond to infection with more speed and strength than adults, but the immunities they create fail to last.

Published in the Journal of Immunology, the discovery reveals a new angle immunizations could take in protecting infants and children from infectious diseases.

"The perfect vaccine would be a single dose given at birth that generates long-lasting immunity," said immunologist Brian Rudd at Cornell's College of Veterinary Medicine, the study's lead author. "No such vaccine exists because we haven't understood why infants rapidly lose immunities. Our finding could change the way we immunize infants and ultimately lead to more effective ways of enhancing immunity in early life."

Immunity against most microbes depends on forming "memory T cells" that remember specific pathogens and can rapidly respond to future infections. Adults almost always generate large numbers of effective memory T cells during infection, around 10 percent of which stay in a long-lived memory pool to rapidly respond next time.

Rudd found that newborn T cells generated in response to infection met dramatically different fates. When faced with the same pathogen, newborn immune systems made T cells that responded more rapidly to infection than adult cells, but quickly became terminally differentiated, never making it into the memory pool.

"So the immune system is forced to start the learning process over again when infected by the same pathogen later in life." Rudd said.

"We hope to find a way to make neonatal cells behave more like adult cells in how they learn from vaccines and respond to infection. Knowledge gained from these studies could be used to design more effective therapeutic interventions and vaccines that can be safely administered in early life."


'/>"/>

Contact: Melissa Osgood
mmo59@cornell.edu
607-255-2059
Cornell University
Source:Eurekalert

Related medicine news :

1. MRI shows brain abnormalities in late preterm infants
2. Despite economic blows, infant health has improved among US poor
3. UT Dallas study sheds light on how infants understand speech
4. Medication does not lower risk of fungal infection, death among ELBW infants
5. Outcomes of steroid therapy following surgery for infants with bile duct disorder
6. Steroids after surgery do not help infants with rare liver disease
7. Despite recommendations for safer sleeping, infant deaths persist
8. Many parents dont follow safe infant sleep practices
9. Many infants still not placed on their backs to sleep
10. New study says probiotic use for infant colic is not effective in reducing symptoms
11. Scientists describe gut bacteria that cause sepsis in preterm infants
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/26/2016)... ... May 26, 2016 , ... On Memorial Day, Hope For ... their lives in military battle for the country. The nonprofit Hope For Heroes ... more programs that empower independence for disabled military veterans, as well as police, firemen, ...
(Date:5/26/2016)... ... 2016 , ... Cardiac arrhythmia is a common complication following ... survival, reports a team of UPMC researchers in the largest study of its ... Thoracic and Cardiovascular Surgery, provide critical information that will hopefully lead to better ...
(Date:5/26/2016)... ... May 26, 2016 , ... MadgeTech will be showcasing its line ... in Warner, New Hampshire at the MadgeTech headquarters. With products sold in more than ... by government agencies, including NASA. , In 2012, NASA strategically set up 17 ...
(Date:5/26/2016)... ... May 26, 2016 , ... Dr. James ... Fighting Blindness, Long Island Chapter on June 4, 2016, 1:30-3:30 pm at the ... founder of Retina Group of New York , is a Board Certified ...
(Date:5/26/2016)... (PRWEB) , ... May 26, 2016 , ... In an effort to provide hair restoration ... to both Snapchat users and those who do not use the app. Dr. Mohebi, the ... new page, Dr. Mohebi Live . , Dr. Mohebi says, “The positive response ...
Breaking Medicine News(10 mins):
(Date:5/27/2016)... , May 27, 2016 Amarantus BioScience ... on developing products for Regenerative Medicine, Neurology and Orphan Diseases, today ... be presenting at two upcoming investor conferences: SeeThru ... Third Avenue, New York City , NY ... Marcum MicroCap Conference   Where: Grand Hyatt ...
(Date:5/26/2016)... May 26, 2016 According to a ... Management Market - U.S. Industry Analysis, Size, Share, Growth, Trends, ... in the U.S. was valued at US$ 5.89 Bn in ... 3.4% from 2015 to 2023 to reach US$ 7.99 Bn ... current and emerging needle free drug delivery devices and the ...
(Date:5/26/2016)... -- TARE (Transarterial Radio-embolization) Using Yttrium-90 ... Overall Decreased Use of Hospital Resource ... healthcare company, has today announced the publication of ... ISPOR (International Society for Pharmacoeconomics and Outcomes Research), ... yttrium-90 glass microspheres is associated with cost savings ...
Breaking Medicine Technology: