Title |
Emergent properties of the interferon-signalling network may underlie the success of hepatitis C treatment
|
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Published in |
Nature Communications, May 2014
|
DOI | 10.1038/ncomms4872 |
Pubmed ID | |
Authors |
Pranesh Padmanabhan, Urtzi Garaigorta, Narendra M. Dixit |
Abstract |
Current interferon alpha-based treatment of hepatitis C virus (HCV) infection fails to cure a sizeable fraction of patients treated. The cause of this treatment failure remains unknown. Here using mathematical modelling, we predict treatment failure to be a consequence of the emergent properties of the interferon-signalling network. HCV induces bistability in the network, creating a new steady state where it can persist. Cells that admit the new steady state alone are refractory to interferon. Using a model of viral kinetics, we show that when the fraction of cells refractory to interferon in a patient exceeds a critical value, treatment fails. Direct-acting antivirals that suppress HCV replication can eliminate the new steady state, restoring interferon sensitivity and improving treatment response. Our study thus presents a new conceptual basis of HCV persistence and treatment response, elucidates the origin of the synergy between interferon and direct-acting antivirals, and facilitates rational treatment optimization. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 46 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 10 | 22% |
Student > Ph. D. Student | 9 | 20% |
Student > Doctoral Student | 8 | 17% |
Student > Master | 6 | 13% |
Professor > Associate Professor | 3 | 7% |
Other | 6 | 13% |
Unknown | 4 | 9% |
Readers by discipline | Count | As % |
---|---|---|
Medicine and Dentistry | 9 | 20% |
Biochemistry, Genetics and Molecular Biology | 8 | 17% |
Agricultural and Biological Sciences | 8 | 17% |
Engineering | 5 | 11% |
Immunology and Microbiology | 4 | 9% |
Other | 8 | 17% |
Unknown | 4 | 9% |