KEGG   PATHWAY: vlg04940
Entry
vlg04940                    Pathway                                
Name
Type I diabetes mellitus - Vulpes lagopus (Arctic fox)
Description
Type I diabetes mellitus is a disease that results from autoimmune destruction of the insulin-producing beta-cells. Certain beta-cell proteins act as autoantigens after being processed by antigen-presenting cell (APC), such as macrophages and dendritic cells, and presented in a complex with MHC-II molecules on the surface of the APC. Then immunogenic signals from APC activate CD4+ T cells, predominantly of the Th1 subset. Antigen-activated Th1 cells produce IL-2 and IFNgamma. They activate macrophages and cytotoxic CD8+ T cells, and these effector cells may kill islet beta-cells by one or both of two types of mechanisms: (1) direct interactions of antigen-specific cytotoxic T cells with a beta-cell autoantigen-MHC-I complex on the beta-cell, and (2) non-specific inflammatory mediators, such as free radicals/oxidants and cytokines (IL-1, TNFalpha, TNFbeta, IFNgamma).
Type I diabetes is a polygenic disease. One of the principle determining genetic factors in diabetes incidence is the inheritance of mutant MHC-II alleles. Another plausible candidate gene is the insulin gene.
Class
Human Diseases; Endocrine and metabolic disease
Pathway map
vlg04940  Type I diabetes mellitus
vlg04940

Organism
Vulpes lagopus (Arctic fox) [GN:vlg]
Gene
121471415  INS; insulin [KO:K04526]
121481890  glutamate decarboxylase 1-like [KO:K01580] [EC:4.1.1.15]
121496657  GAD2; glutamate decarboxylase 2 [KO:K01580] [EC:4.1.1.15]
121501465  GAD1; glutamate decarboxylase 1 [KO:K01580] [EC:4.1.1.15]
121480496  PTPRN; receptor-type tyrosine-protein phosphatase-like N isoform X1 [KO:K07817] [EC:3.1.3.48]
121489969  PTPRN2; receptor-type tyrosine-protein phosphatase N2 isoform X1 [KO:K07817] [EC:3.1.3.48]
121481598  CPE; carboxypeptidase E isoform X1 [KO:K01294] [EC:3.4.17.10]
121480548  HSPD1; 60 kDa heat shock protein, mitochondrial [KO:K04077] [EC:5.6.1.7]
121480230  LOW QUALITY PROTEIN: 60 kDa heat shock protein, mitochondrial-like [KO:K04077] [EC:5.6.1.7]
121474631  ICA1; islet cell autoantigen 1 isoform X1 [KO:K19863]
121473937  HLA class II histocompatibility antigen, DR alpha chain [KO:K06752]
121474464  SLA class II histocompatibility antigen, DQ haplotype C beta chain-like [KO:K06752]
121471276  SLA class II histocompatibility antigen, DQ haplotype D alpha chain-like [KO:K06752]
121471845  RLA class II histocompatibility antigen, DP alpha-1 chain [KO:K06752]
121486869  LOW QUALITY PROTEIN: HLA class II histocompatibility antigen, DP beta 1 chain [KO:K06752]
121498409  HLA class II histocompatibility antigen, DM alpha chain isoform X1 [KO:K06752]
121498441  HLA class II histocompatibility antigen, DO alpha chain [KO:K06752]
121499713  DLA class II histocompatibility antigen, DR-1 beta chain [KO:K06752]
121501638  HLA class II histocompatibility antigen, DM beta chain [KO:K06752]
121494772  HLA class II histocompatibility antigen, DO beta chain-like [KO:K06752]
121494620  CD80; T-lymphocyte activation antigen CD80 isoform X1 [KO:K05412]
121471504  CD86; T-lymphocyte activation antigen CD86 isoform X1 [KO:K05413]
121480715  CD28; T-cell-specific surface glycoprotein CD28 [KO:K06470]
121477529  IL12A; interleukin-12 subunit alpha [KO:K05406]
121486324  IL12B; interleukin-12 subunit beta [KO:K05425]
121492803  IL2; interleukin-2 [KO:K05429]
121491993  IFNG; interferon gamma [KO:K04687]
121489374  DLA class I histocompatibility antigen, A9/A9 alpha chain-like isoform X1 [KO:K06751]
121489381  DLA class I histocompatibility antigen, A9/A9 alpha chain-like isoform X1 [KO:K06751]
121471640  class I histocompatibility antigen, Gogo-OKO alpha chain-like [KO:K06751]
121501728  LOW QUALITY PROTEIN: DLA class I histocompatibility antigen, A9/A9 alpha chain-like [KO:K06751]
121498932  FASLG; tumor necrosis factor ligand superfamily member 6 [KO:K04389]
121475736  tumor necrosis factor receptor superfamily member 6-like [KO:K04390]
121487796  PRF1; perforin-1 [KO:K07818]
121493507  granzyme B-like [KO:K01353] [EC:3.4.21.79]
121484710  LTA; lymphotoxin-alpha [KO:K05468]
121500453  TNF; tumor necrosis factor [KO:K03156]
121491336  IL1A; interleukin-1 alpha [KO:K04383]
121490494  IL1B; interleukin-1 beta [KO:K04519]
Compound
C00027  Hydrogen peroxide
C00533  Nitric oxide
C00704  Superoxide
Reference
PMID:9719467
  Authors
Rabinovitch A, Suarez-Pinzon WL.
  Title
Cytokines and their roles in pancreatic islet beta-cell destruction and insulin-dependent diabetes mellitus.
  Journal
Biochem Pharmacol 55:1139-49 (1998)
DOI:10.1016/S0006-2952(97)00492-9
Reference
  Authors
Cox NJ, Wapelhorst B, Morrison VA, Johnson L, Pinchuk L, Spielman RS, Todd JA, Concannon P
  Title
Seven regions of the genome show evidence of linkage to type 1 diabetes in a consensus analysis of 767 multiplex families.
  Journal
Am J Hum Genet 69:820-30 (2001)
DOI:10.1086/323501
Reference
PMID:8072542
  Authors
Davies JL, Kawaguchi Y, Bennett ST, Copeman JB, Cordell HJ, Pritchard LE, Reed PW, Gough SC, Jenkins SC, Palmer SM, et al.
  Title
A genome-wide search for human type 1 diabetes susceptibility genes.
  Journal
Nature 371:130-6 (1994)
DOI:10.1038/371130a0
Reference
PMID:8786033
  Authors
Fujisawa T, Ikegami H, Kawaguchi Y, Yamato E, Takekawa K, Nakagawa Y, Hamada Y, Ueda H, Shima K, Ogihara T.
  Title
Class I HLA is associated with age-at-onset of IDDM, while class II HLA confers susceptibility to IDDM.
  Journal
Diabetologia 38:1493-5 (1995)
DOI:10.1007/BF00400620
Reference
  Authors
Jaeckel E, Klein L, Martin-Orozco N, von Boehmer H.
  Title
Normal incidence of diabetes in NOD mice tolerant to glutamic acid decarboxylase.
  Journal
J Exp Med 197:1635-44 (2003)
DOI:10.1084/jem.20030215
Reference
  Authors
Nakayama M, Abiru N, Moriyama H, Babaya N, Liu E, Miao D, Yu L, Wegmann DR, Hutton JC, Elliott JF, Eisenbarth GS.
  Title
Prime role for an insulin epitope in the development of type 1 diabetes in NOD mice.
  Journal
Nature 435:220-3 (2005)
DOI:10.1038/nature03523
Reference
  Authors
Kent SC, Chen Y, Bregoli L, Clemmings SM, Kenyon NS, Ricordi C, Hering BJ, Hafler DA.
  Title
Expanded T cells from pancreatic lymph nodes of type 1 diabetic subjects recognize an insulin epitope.
  Journal
Nature 435:224-8 (2005)
DOI:10.1038/nature03625
Reference
  Authors
Lieberman SM, DiLorenzo TP.
  Title
A comprehensive guide to antibody and T-cell responses in type 1 diabetes.
  Journal
Tissue Antigens 62:359-77 (2003)
DOI:10.1034/j.1399-0039.2003.00152.x
Reference
  Authors
Lord SJ, Rajotte RV, Korbutt GS, Bleackley RC.
  Title
Granzyme B: a natural born killer.
  Journal
Immunol Rev 193:31-8 (2003)
DOI:10.1034/j.1600-065X.2003.00044.x
Related
pathway
vlg04210  Apoptosis
vlg04660  T cell receptor signaling pathway
KO pathway
ko04940   
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