Source:http://linkedlifedata.com/resource/pubmed/id/11506741
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
2001-8-16
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pubmed:abstractText |
To examine tolerability and activity of local, intratumoral tumor necrosis factor-alpha (TNF-alpha) and systemic interferon-alpha2b (IFN-alpha2b) in locally advanced, hormone-resistant prostate cancer (LA-HRPC), 10 patients with LA-HRPC (T4N x M0, n = 3, T4N x M1, n = 5; T4N1M1, n = 2) were treated with recombinant TNF-alpha injected locally into prostate tumor tissue at 4-week intervals (maximum of four cycles) combined with intermittent subcutaneous (s.c.) administration of 5 x 10(6) IU IFN-alpha2b. Twenty-nine TNF-alpha cycles were administered. Despite significant TNF-alpha leakage into the systemic circulation 2 h after intraprostatic application (from a mean of 9 to a mean of 416 pg/ml; p = 0.0034), TNF-alpha (and IFN-alpha2b) was well tolerated (WHO grade 1-2 toxicity), possibly because of its rapid neutralization by increasing soluble 55-kDa and 75-kDa TNF receptor levels in the serum (mean increase 268% and 91%, respectively) at the same time. TNF-alpha induced prostate tumor cell necrosis in all patients, leading to a significant reduction of prostate volume in 9 of 10 cases (mean 38%; p = 0.0025). The significant short-term increase of prostate-specific antigen (PSA) (mean 65%; p < 0.001), tissue polypeptide-specific antigen (TPS) (mean 85%; p = 0.001), and possibly interleukin-8 (IL-8) (mean 2687%; p < 0.009) serum levels within 4 h after TNF-alpha confirmed the cytotoxic effect in vivo. In the long term, serum PSA levels dropped by 18%-87%, reaching the nadir value 7 weeks after baseline. Objective responses of metastases were not seen. Intraprostatic administration of TNF-alpha is feasible at a tolerable toxicity in patients with LA-HRPC and, thus, may be a new treatment option for these patients.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Interferon-alpha,
http://linkedlifedata.com/resource/pubmed/chemical/Peptides,
http://linkedlifedata.com/resource/pubmed/chemical/Prostate-Specific Antigen,
http://linkedlifedata.com/resource/pubmed/chemical/Recombinant Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Tumor Markers, Biological,
http://linkedlifedata.com/resource/pubmed/chemical/Tumor Necrosis Factor-alpha,
http://linkedlifedata.com/resource/pubmed/chemical/interferon alfa-2b,
http://linkedlifedata.com/resource/pubmed/chemical/tissue polypeptide specific antigen
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
1079-9907
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
21
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
475-84
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pubmed:dateRevised |
2011-11-17
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pubmed:meshHeading |
pubmed-meshheading:11506741-Aged,
pubmed-meshheading:11506741-Drug Administration Schedule,
pubmed-meshheading:11506741-Follow-Up Studies,
pubmed-meshheading:11506741-Humans,
pubmed-meshheading:11506741-Injections, Intralesional,
pubmed-meshheading:11506741-Injections, Subcutaneous,
pubmed-meshheading:11506741-Interferon-alpha,
pubmed-meshheading:11506741-Male,
pubmed-meshheading:11506741-Middle Aged,
pubmed-meshheading:11506741-Peptides,
pubmed-meshheading:11506741-Prostate-Specific Antigen,
pubmed-meshheading:11506741-Prostatic Neoplasms,
pubmed-meshheading:11506741-Recombinant Proteins,
pubmed-meshheading:11506741-Tumor Markers, Biological,
pubmed-meshheading:11506741-Tumor Necrosis Factor-alpha
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pubmed:year |
2001
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pubmed:articleTitle |
Local intratumoral tumor necrosis factor-alpha and systemic IFN-alpha 2b in patients with locally advanced prostate cancer.
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pubmed:affiliation |
Department of Urology, University of Vienna, Austria. uroldep@akh-wien.ac.at
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pubmed:publicationType |
Journal Article,
Clinical Trial,
Clinical Trial, Phase I
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