KEGG   PATHWAY: map05219Help
Entry
map05219                    Pathway                                

Name
Bladder cancer
Description
The urothelium covers the luminal surface of almost the entire urinary tract, extending from the renal pelvis, through the ureter and bladder, to the proximal urethra. The majority of urothelial carcinoma are bladder carcinomas, and urothelial carcinomas of the renal pelvis and ureter account for only approximately 7% of the total. Urothelial tumours arise and evolve through divergent phenotypic pathways. Some tumours progress from urothelial hyperplasia to low-grade non-invasive superficial papillary tumours. More aggressive variants arise either from flat, high-grade carcinoma in situ (CIS) and progress to invasive tumours, or they arise de novo as invasive tumours. Low-grade papillary tumors frequently show a constitutive activation of the receptor tyrosine kinase-Ras pathway, exhibiting activating mutations in the HRAS and fibroblast growth factor receptor 3 (FGFR3) genes. In contrast, CIS and invasive tumors frequently show alterations in the TP53 and RB genes and pathways. Invasion and metastases are promoted by several factors that alter the tumour microenvironment, including the aberrant expression of  E-cadherins (E-cad), matrix metalloproteinases (MMPs), angiogenic factors such as vascular endothelial growth factor (VEGF).
Class
Human Diseases; Cancers
BRITE hierarchy
Pathway map
Bladder cancer
map05219

All organismsOrtholog table
Disease
H00022  
Bladder cancer
Reference
  Authors
Mitra AP, Datar RH, Cote RJ.
  Title
Molecular pathways in invasive bladder cancer: new insights into mechanisms, progression, and target identification.
  Journal
J Clin Oncol 24:5552-64 (2006)
DOI:10.1200/JCO.2006.08.2073
Reference
  Authors
Wolff EM, Liang G, Jones PA.
  Title
Mechanisms of Disease: genetic and epigenetic alterations that drive bladder cancer.
  Journal
Nat Clin Pract Urol 2:502-10 (2005)
DOI:10.1038/ncpuro0318
Reference
  Authors
Wu XR.
  Title
Urothelial tumorigenesis: a tale of divergent pathways.
  Journal
Nat Rev Cancer 5:713-25 (2005)
DOI:10.1038/nrc1697
Reference
  Authors
Brown NS, Jones A, Fujiyama C, Harris AL, Bicknell R.
  Title
Thymidine phosphorylase induces carcinoma cell oxidative stress and promotes secretion of angiogenic factors.
  Journal
Cancer Res 60:6298-302 (2000)
Reference
  Authors
Bellmunt J, Hussain M, Dinney CP.
  Title
Novel approaches with targeted therapies in bladder cancer. Therapy of bladder cancer by blockade of the epidermal growth factor receptor family.
  Journal
Crit Rev Oncol Hematol 46 Suppl:S85-104 (2003)
DOI:10.1016/S1040-8428(03)00067-2
Reference
  Authors
Sugano K, Kakizoe T.
  Title
Genetic alterations in bladder cancer and their clinical applications in molecular tumor staging.
  Journal
Nat Clin Pract Urol 3:642-52 (2006)
DOI:10.1038/ncpuro0649
Reference
  Authors
Dunn KL, Espino PS, Drobic B, He S, Davie JR.
  Title
The Ras-MAPK signal transduction pathway, cancer and chromatin remodeling.
  Journal
Biochem Cell Biol 83:1-14 (2005)
DOI:10.1139/o04-121
Reference
  Authors
Williams SG, Stein JP.
  Title
Molecular pathways in bladder cancer.
  Journal
Urol Res 32:373-85 (2004)
DOI:10.1007/s00240-003-0345-y
KO pathway
 

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