Navigation Links
Bacteria use host's immune response to their competitive advantage

Millions of bacteria live within the recesses of our noses and upper respiratory tracts, waiting for a chance to infiltrate and infect. But long before these bacteria break through our immune defenses, they must first compete against other bacterial species to colonize the mucus-lined surfaces of our noses.

Competition between two common nose bacteria involves some interesting trickery, according to a new study in PLoS Pathogens. "We're looking at how bacteria use their host, and we've found that the presence of one species leads to the elimination of another," says Jeffrey Weiser, coauthor of the study and professor of pediatrics and microbiology at the University of Pennsylvania, School of Medicine.

In a mouse model, Haemophilus influenzae--a common bacterium that infects children--stimulates the immune system to send out specialized white blood cells that attack its competitor, Streptococcus pneumoniae--a leading cause of pneumonia. "It is striking that the host's response can so completely eliminate the competitor," says Weiser.

The findings also demonstrate how antibiotics and vaccines that target one microbe might inadvertently alter the competitive interactions among other species present.

###

Citation: Lysenko ES, Ratner AJ, Nelson AL, Weiser JN (2005) The role of innate immune responses in the outcome of interspecies competition for colonization of mucosal surfaces. PLoS Pathogens 1(1): e1.


'"/>

Source:Public Library of Science


Page: 1

Related biology news :

1. Bacteria collection sheds light on urinary tract infections
2. Solution to Pollution: New Bacteria Eats Toxic Waste
3. The Bacterias guide to survival
4. UF Researchers Map Bacterial Proteins That Cause Tooth Loss
5. Bacterial genome sheds light on synthesizing cancer-fighting compounds
6. Where Bacteria Get Their Genes
7. Bacteria feed on smelly breath (and feet)
8. New insight into autoimmune disease: Bacterial infections promote recognition of self-glycolipids
9. Say what? Bacterial conversation stoppers
10. Bacteria are key to green plastics, drugs
11. Researchers Discover Ancient Origins Of Tuberculosis-causing Bacteria
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Bacteria use host immune response their competitive advantage

(Date:12/5/2014)... 2014 Increased emphasis on product quality, ... testing and inspection technologies. The convergence of industries ... range of innovative test solutions. This trend is ... which is generally more inclined towards communication, media ... strategies of test equipment vendors will cater to ...
(Date:12/4/2014)... PALM BEACH GARDENS, Fla. , Dec. 3, ... identity management solutions, today announced that its DigitalPersona ... 4500 fingerprint readers have been deployed throughout ... Carolina , South Carolina ... network headquartered in Southern Pines, North ...
(Date:12/3/2014)... 2014 As part of our commitment to ... pleased to announce the release of a new reader ... the workforce data that they need. The ... by existing readers. Many such devices have serious shortcomings ... technology. Older models force users to navigate numerous complicated ...
Breaking Biology News(10 mins):Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 2Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 3Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 4First Bank Partners with Crossmatch to Increase Log In Security 2First Bank Partners with Crossmatch to Increase Log In Security 3Inception Technologies to Release New Biometric Reader 2
... using a novel technique to better understand mineral growth ... Ridge National Laboratory are improving predictions of mineral reactions ... oil pipes clear to sequestering radium. The mineral ... generally, but also because it is the dominant scale-forming ...
... SUNY Downstate Medical Center,s growth into a major center ... awarded SUNY Downstate a four-year challenge grant of $220,000 ... causes, treatment, and prevention of blinding diseases. Douglas R. ... principal investigator. RPB is the world,s leading voluntary organization ...
... one of the most common neurological diseases, more than 4,000 ... decoded over the next five years in a study led ... and several collaborating institutions. Daniel Lowenstein, MD , ... been attempted for identifying the genetic causes of epilepsy, and ...
Cached Biology News:Metadynamics technique offers insight into mineral growth and dissolution 2SUNY Downstate receives grant from research to prevent blindness 2UCSF shares $25-million grant to find epilepsy genes 2UCSF shares $25-million grant to find epilepsy genes 3
(Date:12/17/2014)... San Diego, CA (PRWEB) December 17, 2014 ... strategy and activation agency and member of the Huntsworth ... Jamie Gonzales to its executive team. In her role, ... Services. , “We are incredibly honored to welcome ... said Agency Chief and CEO, Gaëtan Fraikin. “She is ...
(Date:12/17/2014)... FRANCISCO, Calif. , Dec. 17, 2014 /PRNewswire/ ... of a Phase 2 study evaluating the investigational ... treatment of patients with severe, chronic itch who ... standard of care, including topical steroids and antihistamines. ... percent change in Visual Analog Scale (VAS) itch ...
(Date:12/15/2014)... Organovo Holdings, Inc. (NYSE MKT: ONVO) ... breakthrough 3D bioprinting technology,  today celebrated continued positive ... exVive3D TM Human Liver Tissue.  The product, ... release on November 18, has been recognized as ... for innovation. Most recently, on December ...
(Date:12/13/2014)... December 13, 2014 CanDiag, Inc., a ... company has changed its name to OncoTab, Inc. ... of where we are today,” said CEO and Chief ... platform’s applications beyond breast cancer diagnostics to include imaging ... of that evolution.” , Founded in 2011 by Dr. ...
Breaking Biology Technology:Audacity Welcomes Healthcare Communications Expert Jamie Gonzales as Senior Vice President of Client Services 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 3Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 4Organovo Celebrates a Positive 2014 Reception of its exVive3DTM Human Liver Tissue Product 2Organovo Celebrates a Positive 2014 Reception of its exVive3DTM Human Liver Tissue Product 3CanDiag Inc. Expands Product Scope Under a New Name: OncoTab, Inc. 2
... Group, Inc. (OTCBB: MDXG), an integrated developer, manufacturer ... bioimplants processed from human amniotic membrane, announced today ... Systagenix, whereby Systagenix will co-market EpiFix®. The MiMedx ... amniotic tissue, EpiFix® offers a wide variety of ...
... first Minority Biomedical Entrepreneurship Conference (MBEC), will convene ... platform for minority professionals, entrepreneurs, investors, students and ... ideas. (Logo: http://photos.prnewswire.com/prnh/20120319/DC71722LOGO ) ... of the growing biomedical industry workforce, and a ...
... DIEGO and PHILADELPHIA, March 19, 2012 Toby Odenheim, director ... contract research organization (CRO), is slated to present on ... at the Outsourcing in Clinical Trials, East Coast ... Odenheim will speak at 11 a.m. EDT, Wed., March 28, ...
Cached Biology Technology:MiMedx Signs Agreement with Systagenix for Global Distribution of EpiFix® 2MiMedx Signs Agreement with Systagenix for Global Distribution of EpiFix® 3Minority Biomedical Entrepreneurship Conference 2Minority Biomedical Entrepreneurship Conference 3Synteract Director of IT Services Toby Odenheim Speaking at March 2012 Outsourcing in Clinical Trials East Coast Conference 2Synteract Director of IT Services Toby Odenheim Speaking at March 2012 Outsourcing in Clinical Trials East Coast Conference 3
... serum is extensively scrutinized, including ... All horses are of ... worming are controlled and documented ... consistency. Pricing: $12/unit ...
... new primer sets added in Dec 2005 ... hours , Detection from as little ... Specific primers available for hundreds of mammalian ... or end-point RT-PCR , Ideal for ...
jub, ajuba homolog (Xenopus laevis)...
Recommend to use at up to 5000X dilutions for cell culture (e.g. Add 1 ul to 1 ml of culture medium.)...
Biology Products: