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Scientists identify new strategy to fight deadly infection in cystic fibrosis
Date:1/23/2013

mer said.

Abdulrahman observed that in cells with the CF mutation, a key molecule gets caught up in those clumps. This molecule, beclin1, has a critical autophagy job, essentially escorting foreign particles to the cell parts that digest them and clear them away.

"Our hypothesis was that if we downregulate p62, this will release beclin1 from the aggregates. Once it's available, we will have active autophagic machinery that is able to control the infection," said Abdulrahman, first author on the paper.

In contrast, lowering p62 in macrophages from normal mice allowed the B. cenocepacia bacteria to grow. This confirmed that p62 actually controls the infection in cells from healthy animals but has the opposite effect when the CF mutation is present, she said.


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Contact: Amal Amer
amal.amer@osumc.edu
614-247-1566
Ohio State University
Source:Eurekalert

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