Host (biology)

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In biology, a host is an organism that harbors a virus or parasite, or a mutual or commensal symbiont, typically providing nourishment and shelter. In botany, a host plant is one that supplies food resources and substrate for certain insects or other fauna. Examples of such interactions include a cell being host to a virus, a legume plant hosting helpful nitrogen-fixing bacteria, and animals as hosts to parasitic worms, e.g. nematodes.

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News tagged with host cell


Parasite evades death by promoting host cell survival

Parasite evades death by promoting host cell survival

Chemistry / Biochemistry

created Dec 08, 2009 | popularity not rated yet | comments 0

Researchers have discovered how the parasite Trypanosoma cruzi, which causes Chagas' disease, prolongs its survival in infected cells. A protein on the parasite activates the enzyme Akt, which blocks cell ...





Search results for host cell


'Mini' transplant may reverse severe sickle cell disease

Medicine & Health / Research

created 13 hours ago | popularity 5 / 5 (1) | comments 0

Results of a preliminary study by scientists at the National Institutes of Health and Johns Hopkins show that "mini" stem cell transplantation may safely reverse severe sickle cell disease in adults.


One Can Act Without Group Support; Even in the Bacterial World

One Can Act Without Group Support; Even in the Bacterial World

Chemistry / Biochemistry

created Dec 08, 2009 | popularity 4.7 / 5 (3) | comments 0

(PhysOrg.com) -- A single bacterium can act alone, performing the same kinds of actions that a group normally does. The behavior of that bacterium can be manipulated at the cellular level. That’s the intriguing ...


H1N1 influenza adopted novel strategy to move from birds to humans

H1N1 influenza adopted novel strategy to move from birds to humans

Biology / Cell & Microbiology

created Dec 08, 2009 | popularity 5 / 5 (2) | comments 1

(PhysOrg.com) -- The 2009 H1N1 influenza virus used a new strategy to cross from birds into humans, a warning that it has more than one trick up its sleeve to jump the species barrier and become virulent.


Improving the odds:A new method for bone marrow transplantation

Medicine & Health / Research

created Dec 07, 2009 | popularity not rated yet | comments 0

Although bone marrow transplants have long been standard for acute leukemia, current treatments still rely on exact matches between donor and patient. Now, scientists at the University of Perugia, Italy, and the Weizmann ...


Researchers restore some function to cells from cystic fibrosis patients

Chemistry / Biochemistry

created Dec 06, 2009 | popularity 5 / 5 (1) | comments 0

In an encouraging new development, a team led by Scripps Research Institute scientists has restored partial function to lung cells collected from patients with cystic fibrosis. While there is still much work to be done before ...


Cholesterol-lowering drugs also may protect stem cell transplant patients from GVHD

Medicine & Health / Research

created Dec 04, 2009 | popularity 5 / 5 (1) | comments 0

Cholesterol-lowering drugs known as statins are among the most prescribed medicines in the U.S. Now a new study by researchers at Fred Hutchinson Cancer Research Center indicates that statins may protect stem cell transplant ...



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