Entry
Name
Toll-like receptor signaling pathway - Homo sapiens (human)
Description
Specific families of pattern recognition receptors are responsible for detecting microbial pathogens and generating innate immune responses. Toll-like receptors (TLRs) are membrane-bound receptors identified as homologs of Toll in Drosophila. Mammalian TLRs are expressed on innate immune cells, such as macrophages and dendritic cells, and respond to the membrane components of Gram-positive or Gram-negative bacteria. Pathogen recognition by TLRs provokes rapid activation of innate immunity by inducing production of proinflammatory cytokines and upregulation of costimulatory molecules. TLR signaling pathways are separated into two groups: a MyD88-dependent pathway that leads to the production of proinflammatory cytokines with quick activation of NF-{kappa}B and MAPK, and a MyD88-independent pathway associated with the induction of IFN-beta and IFN-inducible genes, and maturation of dendritic cells with slow activation of NF-{kappa}B and MAPK.
Class
Organismal Systems; Immune system
BRITE hierarchy
Pathway map
hsa04620 Toll-like receptor signaling pathway
Ortholog table
Network
Element
N00148 TLR3-IRF7 signaling pathway
N00149 TLR3-IRF3 signaling pathway
N00150 Type I IFN signaling pathway
N00435 TLR1/2/4-NFKB signaling pathway
N00438 TLR2/4-MAPK signaling pathway
N00553 TLR4-IRF3/7 signaling pathway
N00563 TLR3-NFKB signaling pathway
N00690 TLR7/9-IRF7 signaling pathway
N01543 TLR7/8/9-IRF5 signaling pathway
N01566 TLR5-NFKB signaling pathway
Drug
D00745 Interferon alfa-2a (USAN/INN)
D00746 Interferon beta-1b (USAN/INN)
D01666 Bropirimine (JAN/USAN/INN)
D02500 Imiquimod (JAN/USP/INN)
D02744 Interferon alfacon-1 (USAN/INN)
D02745 Interferon alfa-2b (USAN)
D02747 Peginterferon alfa-2a (USAN/INN)
D02748 Peginterferon alfa-2b (USAN/INN)
D03305 Interferon alfa (NAMALWA) (JP18)
D03441 Certolizumab pegol (USAN/INN)
D04043 Eritoran tetrasodium (USAN)
D04552 Interferon alfa-n1 (USAN)
D04553 Interferon alfa-n3 (USAN)
D04554 Interferon beta-1a (USAN)
D08842 Agatolimod sodium (USAN)
D08844 Albinterferon alfa-2b (USAN)
D09661 Rintatolimod (USAN/INN)
D10483 Peginterferon beta-1a (USAN/INN)
D11027 Ropeginterferon alfa-2b (INN)
D11491 Selicrelumab (USAN/INN)
D11504 Tilsotolimod (USAN/INN)
D11505 Tilsotolimod sodium (USAN)
D11871 Selgantolimod (USAN/INN)
D12276 Cobitolimod sodium (USAN)
D12352 Eclitasertib (USAN/INN)
D12412 Emavusertib hydrochloride (USAN)
D12463 Davoceticept (USAN/INN)
D12532 Emavusertib mesylate (USAN)
D12533 Emavusertib maleate (USAN)
D12538 Emavusertib phosphate (USAN)
D12539 emavusertib tosylate (USAN)
D12624 Paridiprubart (USAN/INN)
D12856 Nelitolimod sodium (USAN)
D12940 Oditrasertib (USAN/INN)
Organism
Homo sapiens (human) [GN:
hsa ]
Gene
3929 LBP; lipopolysaccharide binding protein [KO:K05399 ]
5290 PIK3CA; phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha [KO:K00922 ] [EC:2.7.1.153 ]
5293 PIK3CD; phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit delta [KO:K00922 ] [EC:2.7.1.153 ]
5291 PIK3CB; phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit beta [KO:K00922 ] [EC:2.7.1.153 ]
5295 PIK3R1; phosphoinositide-3-kinase regulatory subunit 1 [KO:K02649 ]
5296 PIK3R2; phosphoinositide-3-kinase regulatory subunit 2 [KO:K02649 ]
8503 PIK3R3; phosphoinositide-3-kinase regulatory subunit 3 [KO:K02649 ]
4615 MYD88; MYD88 innate immune signal transduction adaptor [KO:K04729 ]
114609 TIRAP; TIR domain containing adaptor protein [KO:K05403 ]
8772 FADD; Fas associated via death domain [KO:K02373 ]
10454 TAB1; TGF-beta activated kinase 1 (MAP3K7) binding protein 1 [KO:K04403 ]
23118 TAB2; TGF-beta activated kinase 1 (MAP3K7) binding protein 2 [KO:K04404 ]
8517 IKBKG; inhibitor of nuclear factor kappa B kinase regulatory subunit gamma [KO:K07210 ]
1147 CHUK; component of inhibitor of nuclear factor kappa B kinase complex [KO:K04467 ] [EC:2.7.11.10 ]
4790 NFKB1; nuclear factor kappa B subunit 1 [KO:K02580 ]
5970 RELA; RELA proto-oncogene, NF-kB subunit [KO:K04735 ]
3725 JUN; Jun proto-oncogene, AP-1 transcription factor subunit [KO:K04448 ]
2353 FOS; Fos proto-oncogene, AP-1 transcription factor subunit [KO:K04379 ]
3576 CXCL8; C-X-C motif chemokine ligand 8 [KO:K10030 ]
6352 CCL5; C-C motif chemokine ligand 5 [KO:K12499 ]
6348 CCL3; C-C motif chemokine ligand 3 [KO:K05408 ]
6349 CCL3L1; C-C motif chemokine ligand 3 like 1 [KO:K05408 ]
414062 CCL3L3; C-C motif chemokine ligand 3 like 3 [KO:K05408 ]
6351 CCL4; C-C motif chemokine ligand 4 [KO:K12964 ]
9560 CCL4L2; C-C motif chemokine ligand 4 like 2 [KO:K12964 ]
388372 CCL4L1; C-C motif chemokine ligand 4 like 1 [KO:K12964 ]
353376 TICAM2; TIR domain containing adaptor molecule 2 [KO:K05409 ]
148022 TICAM1; TIR domain containing adaptor molecule 1 [KO:K05842 ]
3663 IRF5; interferon regulatory factor 5 [KO:K09446 ]
3665 IRF7; interferon regulatory factor 7 [KO:K09447 ]
9641 IKBKE; inhibitor of nuclear factor kappa B kinase subunit epsilon [KO:K07211 ] [EC:2.7.11.10 ]
7187 TRAF3; TNF receptor associated factor 3 [KO:K03174 ]
3661 IRF3; interferon regulatory factor 3 [KO:K05411 ]
3454 IFNAR1; interferon alpha and beta receptor subunit 1 [KO:K05130 ]
3455 IFNAR2; interferon alpha and beta receptor subunit 2 [KO:K05131 ]
6772 STAT1; signal transducer and activator of transcription 1 [KO:K11220 ]
6773 STAT2; signal transducer and activator of transcription 2 [KO:K11221 ]
3627 CXCL10; C-X-C motif chemokine ligand 10 [KO:K12671 ]
4283 CXCL9; C-X-C motif chemokine ligand 9 [KO:K05416 ]
6373 CXCL11; C-X-C motif chemokine ligand 11 [KO:K12672 ]
Reference
Authors
Kawai T, Akira S.
Title
TLR signaling.
Journal
Reference
Authors
O'Neill LA, Bowie AG.
Title
The family of five: TIR-domain-containing adaptors in Toll-like receptor signalling.
Journal
Reference
Authors
Honda K, Taniguchi T.
Title
IRFs: master regulators of signalling by Toll-like receptors and cytosolic pattern-recognition receptors.
Journal
Reference
Authors
Uematsu S, Akira S.
Title
Toll-like receptors and Type I interferons.
Journal
Reference
Authors
Akira S, Uematsu S, Takeuchi O.
Title
Pathogen recognition and innate immunity.
Journal
Reference
Authors
Yamamoto M, Takeda K, Akira S.
Title
TIR domain-containing adaptors define the specificity of TLR signaling.
Journal
Reference
Authors
Means TK, Hayashi F, Smith KD, Aderem A, Luster AD.
Title
The Toll-like receptor 5 stimulus bacterial flagellin induces maturation and chemokine production in human dendritic cells.
Journal
Reference
Authors
Aderem A, Smith KD.
Title
A systems approach to dissecting immunity and inflammation.
Journal
Reference
Authors
Banerjee A, Gerondakis S.
Title
Coordinating TLR-activated signaling pathways in cells of the immune system.
Journal
Reference
Authors
Loniewski KJ, Patial S, Parameswaran N.
Title
Sensitivity of TLR4- and -7-induced NF kappa B1 p105-TPL2-ERK pathway to TNF-receptor-associated-factor-6 revealed by RNAi in mouse macrophages.
Journal
Reference
Authors
Arbibe L, Mira JP, Teusch N, Kline L, Guha M, Mackman N, Godowski PJ, Ulevitch RJ, Knaus UG.
Title
Toll-like receptor 2-mediated NF-kappa B activation requires a Rac1-dependent pathway.
Journal
Reference
Authors
Uematsu S, Akira S.
Title
Toll-like receptors and innate immunity.
Journal
Related pathway
hsa04060 Cytokine-cytokine receptor interaction
hsa04610 Complement and coagulation cascades
KO pathway