Source:

 

@ARTICLE{Lapointe2004,

author = {Jacques Lapointe and Chunde Li and John P Higgins and Matt van de Rijn and Eric Bair and Kelli Montgomery and Michelle Ferrari and Lars Egevad and Walter Rayford and Ulf Bergerheim and Peter Ekman and Angelo M DeMarzo and Robert Tibshirani and David Botstein and Patrick O Brown and James D Brooks and Jonathan R Pollack},

title = {Gene expression profiling identifies clinically relevant subtypes of prostate cancer.},

journal = {Proc Natl Acad Sci U S A},

year = {2004},

volume = {101},

pages = {811--816},

number = {3},

month = {Jan},

doi = {10.1073/pnas.0304146101},

url = {http://dx.doi.org/10.1073/pnas.0304146101}

}

 

Original data: http://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE3933

 

Description:

 

Prostate cancer displays a broad range of clinical behavior from relatively indolent to aggressive metastatic disease. To explore potential molecular variation underlying  this clinical heterogeneity, we profiled gene expression in 62 primary prostate tumors, as well as 41 normal prostate specimens and nine  lymph node metastases, using cDNA microarrays containing approximately  26,000 genes. Unsupervised hierarchical clustering readily distinguished tumors from normal samples, and further identified three subclasses (PT1, PT2 and PT3) of prostate tumors based on distinct patterns of gene expression.

 

  • Lapointe-V1: 11 PT1, 39 PT2 and 19 PT3
  • Lapointe-V2. 11 PT1, 39 PT2 ,19 PT3 and 41 Normal

 

Parameters used in our filter:

 

  • Lapointe-V1: l=4 and  c=63
  • Lapointe-V2: l=4 and  c=94