{
  "@type": "dcat:Dataset",
  "accessLevel": "public",
  "bureauCode": [
    "009:25"
  ],
  "contactPoint": {
    "@type": "vcard:Contact",
    "fn": "NIH",
    "hasEmail": "mailto:info@nih.gov"
  },
  "description": "Background\n          STAT3 phosphorylation is associated with the neoplastic state in many types of cancer, including prostate cancer. We investigated the role of IL-6 signaling and phosphorylation of STAT3 in 2 rat prostatic epithelial lines. NRP-152 and NRP-154 cells were derived from the same rat prostate, yet the NRP-152 cells are not tumorigenic while the NRP-154 cells are tumorigenic. These lines are believed to represent 2 of the stages in the development of prostate cancer, hyperplasia and neoplasia. Differences in signaling pathways should play a role in the 2 phenotypes, hyperplastic and neoplastic.\n        \n        \n          Methods\n          We looked at the phosphorylation state of STAT3 by intracellular flow cytometry, using phospho-specific antibodies to STAT3. We used the same method to examine IL-6 production by the cell lines. We also measured apoptosis by binding of fluorescent annexin V to the cells.\n        \n        \n          Results\n          Although both cells lines made IL-6 constitutively, phosphorylated-STAT3 was present in untreated NRP-154 cells, but not in NRP-152 cells. Treatment with dexamethasone inhibited the IL-6 production of NRP-152 cells, but enhanced that of NRP-154 cells. Treatment with the JAK2 inhibitor AG490 induced apoptosis in NRP-152, but not NRP-154 cells.\n        \n        \n          Conclusions\n          We conclude from these experiments that STAT3 activity plays a role in the phenotype of NRP-154 cell, but not NRP-152 cells. The significance of alternative IL-6 signaling pathways in the different phenotypes of the 2 cell lines is discussed.",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "description": "Visit the original government dataset for complete information, documentation, and data access.",
      "downloadURL": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC59840/",
      "mediaType": "text/html",
      "title": "Official Government Data Source"
    }
  ],
  "identifier": "https://healthdata.gov/api/views/jzz8-gfms",
  "issued": "2025-07-14",
  "keyword": [
    "cell-lines",
    "il-6-signaling",
    "nih",
    "prostate-cancer",
    "stat3-phosphorylation"
  ],
  "landingPage": "https://healthdata.gov/d/jzz8-gfms",
  "modified": "2025-09-06",
  "programCode": [
    "009:033"
  ],
  "publisher": {
    "@type": "org:Organization",
    "name": "National Institutes of Health"
  },
  "theme": [
    "NIH"
  ],
  "title": "IL-6 signaling by STAT3 participates in the change from hyperplasia to neoplasia in NRP-152 and NRP-154 rat prostatic epithelial cells"
}