Wilms tumor—a renal stem cell malignancy?

Wilms tumor—a renal stem cell malignancy?

  • نوع فایل : کتاب
  • زبان : انگلیسی
  • مؤلف : Naomi Pode-Shakked & Benjamin Dekel
  • چاپ و سال / کشور: 2011

Description

Wilms’ tumor (WT; nephroblastoma) is the most common pediatric renal malignancy and rated fourth in overall incidence among childhood cancers. It is viewed as a prototype of differentiation failure in human neoplasia as it recapitulates the histology of the nephrogenic zone of the growing fetal kidney. The cellular origin of WT is unclear. However, recent genomic, genetic and epigenetic studies point to an early renal stem/progenitor cell that undergoes malignant transformation as the source for WT. In this context, classical WT shares genes and pathways activated in progenitors committed to the renal lineage. However, direct proof and characterization of the WT initiating cell have remained elusive. Novel methodologies recently adopted from the cancer stem cell scientific field, including the analysis of sorted single human tumor cells, have been applied to WT. These have enabled the identification of cell sub-populations that show similarities—in terms of molecular marker expression—to human fetal kidney progenitors and are, therefore, likely to be derivatives of the same lineage. Further elucidation of the WT cancer stem cell or the cell of origin in human tumors and in transgenic mouse models that generate murine tumors may not only provide novel therapeutic targets but also shed light on the normal kidney stem cell.
Pediatr Nephrol (2011) 26:1535–1543 DOI 10.1007/s00467-011-1858-1 Received: 2 November 2010 / Revised: 3 February 2011 / Accepted: 22 February 2011 / Published online: 16 April 2011
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