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Innate immune response to influenza A virus infection is inhibited by SOCS1 and SOCS3 via the RIG-I/MAVS/IFNAR1-dependent pathway

Pathways:

RIG-I/MAVS/IFNAR1 pathway

Host Molecules Involved:

Eight “suppressor of cytokine signaling” (SOCS) regulatory proteins

Influenza Strain:

Influenza A virus (IAV)

Tissues:

Human respiratory epithelial cells

Interactions:

SOCS1 and SOCS3, RIG-I/MAVS/IFNAR1 pathway

Mechanisms:

SOCS1 to SOCS7 are constitutively expressed in IAV-infected cells.
SOCS1 and SOCS3 expressions are up-regulated after IAV [...]

Influenza A virus inhibits IFN-gamma functions through the Jak/Stat pathway

Pathways:

Jak/Stat pathway

Host Molecules Involved:

interferons (IFN), in innate immunity

Influenza Strain:

A/Aichi/2/68 (H3N2) (Aichi)

Tissues:

Respiratory epithelial cells

Interactions:

Influenza virus inhibits IFN-gamma.

Mechanisms:

Influenza infection suppressed IFN-gamma-caused up-regulation of HLA-DRalpha mRNA, and class II transactivator (CIITA), a mediator of MHC class II expression.
Nuclear [...]

M1 blocks the complement pathway

Pathways:

The complement pathway

Influenza Molecules Involved:

The matrix (M1) protein of influenza A virus regulates the viral life cycle.

Host Molecules Involved:

Complement C1qA

Tissues:

Lung

Systems:

Host innate immune system

Interactions:

M1 interacts with complement C1qA, inhibits the classical complement pathway.

Mechanisms:

The N-terminal domain of M1 protein is needed for binding to the globular [...]

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