Featured Research

from universities, journals, and other organizations

Stem Cell Therapy May Offer Hope For Acute Lung Injury

Date:
October 29, 2009
Source:
University of Illinois at Chicago
Summary:
Researchers have shown that adult stem cells from bone marrow can prevent acute lung injury in a mouse model of the disease.

Researchers at the University of Illinois at Chicago College of Medicine have shown that adult stem cells from bone marrow can prevent acute lung injury in a mouse model of the disease.

Their results are reported online in the October issue of the journal Stem Cells.

Acute lung injury (ALI) is responsible for an estimated 74,500 deaths in the U.S. each year. ALI can be caused by any major inflammation or injury to the lungs and is a major cause of death in patients in hospital ICUs. There is no effective drug treatment.

In ALI, the layer of cells that forms the lining of the blood vessels surrounding the lung's air sacs is damaged, allowing fluid to leak in and fill the sacs. Repair of these breaks in the endothelium, or lining, is complicated by the fact that endothelial cells are long-lived, says Kishore Wary, UIC assistant professor of pharmacology and lead author of the study. Turnover of new cells takes as long as two to five years, and few of the precursor cells needed for replacement circulate in the body at any given time.

"The stem cells that might be able repair the damage caused by ALI are simply not on hand," he said.

Wary and his colleagues were able to identify progenitor stem cells in the bone marrow of mice that could prevent and treat experimentally-induced ALI. These progenitor stem cells, named Flk-1 and CD34 for the proteins on their surfaces, constitute a very small percentage of the stem cell population in the bone marrow, but the researchers were able to develop a way of culturing the cells that increased their numbers and their "stickiness."

The stem cells stud their surface with molecules called integrins that allow the cells to stick to their targets and affect the repair. "Increasing this capacity for stickiness in our culture system was likely to make the stem cells more effective in repair," Wary said.

When mice that had been injected with a compound that causes ALI were injected with the purified and cultured Flk and CD34 stem cells, the progenitor cells were able to repair the lung injury, prevent fluid build-up, and led to improved survival.

The mouse disease model not only demonstrated that stem cell treatment is a promising therapy for ALI, Wary said, "but also provided us with the means to understand how these progenitor cells did their repair work. These therapeutic cells employed integrins to stick to the site of injury and turn on cellular and molecular repair machinery," he said.

The researchers hope to explore the possibility of using stem cell therapy in human acute lung injury.

The research was supported by grants from the National Institutes of Health. Stephen M. Vogel, Sean Garrean, Yidan D. Zhao and Asrar B. Malik, all of the department of pharmacology in the UIC College of Medicine, also contributed to the study.


Story Source:

The above story is based on materials provided by University of Illinois at Chicago. Note: Materials may be edited for content and length.


Cite This Page:

University of Illinois at Chicago. "Stem Cell Therapy May Offer Hope For Acute Lung Injury." ScienceDaily. ScienceDaily, 29 October 2009. <www.sciencedaily.com/releases/2009/10/091028162629.htm>.
University of Illinois at Chicago. (2009, October 29). Stem Cell Therapy May Offer Hope For Acute Lung Injury. ScienceDaily. Retrieved April 19, 2014 from www.sciencedaily.com/releases/2009/10/091028162629.htm
University of Illinois at Chicago. "Stem Cell Therapy May Offer Hope For Acute Lung Injury." ScienceDaily. www.sciencedaily.com/releases/2009/10/091028162629.htm (accessed April 19, 2014).

Share This



More Health & Medicine News

Saturday, April 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Nine-Month-Old Baby Can't Open His Mouth

Nine-Month-Old Baby Can't Open His Mouth

Newsy (Apr. 19, 2014) Nine-month-old Wyatt Scott was born with a rare disorder called congenital trismus, which prevents him from opening his mouth. Video provided by Newsy
Powered by NewsLook.com
'Holy Grail' Of Weight Loss? New Find Could Be It

'Holy Grail' Of Weight Loss? New Find Could Be It

Newsy (Apr. 18, 2014) In a potential breakthrough for future obesity treatments, scientists have used MRI scans to pinpoint brown fat in a living adult for the first time. Video provided by Newsy
Powered by NewsLook.com
Little Progress Made In Fighting Food Poisoning, CDC Says

Little Progress Made In Fighting Food Poisoning, CDC Says

Newsy (Apr. 18, 2014) A new report shows rates of two foodborne infections increased in the U.S. in recent years, while salmonella actually dropped 9 percent. Video provided by Newsy
Powered by NewsLook.com
Scientists Create Stem Cells From Adult Skin Cells

Scientists Create Stem Cells From Adult Skin Cells

Newsy (Apr. 17, 2014) The breakthrough could mean a cure for some serious diseases and even the possibility of human cloning, but it's all still a way off. Video provided by Newsy
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