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Home NEWS Science News Health

Study offers promise for preventing necrotizing enterocolitis in preemies

Bioengineer by Bioengineer
January 22, 2019
in Health
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Preventing inflammatory white blood cell infiltration in the intestine decreases development of necrotizing enterocolitis in animal model

Researchers at Stanley Manne Children’s Research Institute at Ann & Robert H. Lurie Children’s Hospital of Chicago, and colleagues, discovered a promising direction toward understanding the development of necrotizing enterocolitis (NEC), a devastating intestinal disease commonly affecting premature infants, in order to treat it. Studying the early cellular events leading to NEC in a mouse model, they found that activation of a key protein (transcription factor NF-κB), which responds to stimuli like bacterial products, triggers inflammation in the intestine prior to the presence of intestinal injury. Blocking NF-κB activity prevented recruitment of bone marrow-derived monocytes (a type of white blood cells) into the intestine and their subsequent differentiation into macrophages (immune cells involved in the inflammatory response but also tissue damage when unregulated). This process decreased the development of NEC. Their findings were published in the American Journal of Pathology.

“Our study points to a new potential strategy for preventing NEC during the first few weeks of life in premature babies who are at high risk for the disease,” says senior author Isabelle G. De Plaen, MD, neonatologist and researcher at Manne Research Institute at Lurie Children’s, who also is an Associate Professor of Pediatrics at Northwestern University Feinberg School of Medicine. “If we could intervene early to prevent excessive inflammation caused by monocyte recruitment before signs of NEC are found, we could substantially improve outcomes for these babies.”

Inflammation is involved in NEC and the damaged intestinal tissues often need to be surgically removed. The resulting short gut is not always sufficient to sustain survival. Damaged intestinal tissue also allows bacteria normally confined inside the intestinal cavity to leak into the abdomen and cause infection. This process can be overwhelming to a baby and possibly fatal. Because the exact causes of NEC are unclear, no specific treatment is currently available and prevention remains a challenge.

“By investigating the earliest inflammatory events in NEC, we come much closer to developing the means to interrupt mechanisms that contribute to this disease,” says Dr. De Plaen.

###

This study was supported in part by grants from the National Institutes of Health and funding from the Stanley Manne Children’s Research Institute.

Research at Ann & Robert H. Lurie Children’s Hospital of Chicago is conducted through the Stanley Manne Children’s Research Institute. The Manne Research Institute is focused on improving child health, transforming pediatric medicine and ensuring healthier futures through the relentless pursuit of knowledge. Lurie Children’s is ranked as one of the nation’s top children’s hospitals in the U.S.News & World Report. It is the pediatric training ground for Northwestern University Feinberg School of Medicine. Last year, the hospital served more than 212,000 children from 49 states and 51 countries.

Media Contact
Vita Lerman
[email protected]
http://dx.doi.org/10.1016/j.ajpath.2018.11.015

Tags: Medicine/HealthPediatrics
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