PSCA expression is associated with favorable tumor features and reduced PSA recurrence in operated prostate cancer
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PSCA expression is associated with favorable tumor features and reduced PSA recurrence in operated prostate cancer. / Heinrich, Marie-Christine; Göbel, Cosima; Kluth, Martina; Bernreuther, Christian; Sauer, Charlotte; Schroeder, Cornelia; Möller-Koop, Christina; Hube-Magg, Claudia; Lebok, Patrick; Burandt, Eike; Sauter, Guido; Simon, Ronald; Huland, Hartwig; Graefen, Markus; Heinzer, Hans; Schlomm, Thorsten; Heumann, Asmus.
In: BMC CANCER, Vol. 18, No. 1, 31.05.2018, p. 612.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - PSCA expression is associated with favorable tumor features and reduced PSA recurrence in operated prostate cancer
AU - Heinrich, Marie-Christine
AU - Göbel, Cosima
AU - Kluth, Martina
AU - Bernreuther, Christian
AU - Sauer, Charlotte
AU - Schroeder, Cornelia
AU - Möller-Koop, Christina
AU - Hube-Magg, Claudia
AU - Lebok, Patrick
AU - Burandt, Eike
AU - Sauter, Guido
AU - Simon, Ronald
AU - Huland, Hartwig
AU - Graefen, Markus
AU - Heinzer, Hans
AU - Schlomm, Thorsten
AU - Heumann, Asmus
PY - 2018/5/31
Y1 - 2018/5/31
N2 - BACKGROUND: Prostate Stem Cell Antigen (PSCA) is frequently expressed in prostate cancer but its exact function is unclear.METHODS: To clarify contradictory findings on the prognostic role of PSCA expression, a tissue microarray containing 13,665 prostate cancers was analyzed by immunohistochemistry.RESULTS: PSCA staining was absent in normal epithelial and stromal cells of the prostate. Membranous and cytoplasmic PSCA staining was seen in 53.7% of 9642 interpretable tumors. Staining was weak in 22.4%, moderate in 24.5% and strong in 6.8% of tumors. PSCA expression was associated with favorable pathological and clinical tumor features: Early pathological tumor stage (p < 0.0001), low Gleason grade (p < 0.0001), absence of lymph node metastasis (p < 0.0001), low pre-operative PSA level (p = 0.0118), negative surgical margin (p < 0.0001) and reduced PSA recurrence (p < 0.0001). PSCA expression was an independent predictor of prognosis in multivariate analysis (hazard ratio 0.84, p < 0.0001).CONCLUSIONS: The absence of statistical relationship to TMPRSS2:ERG fusion status, chromosomal deletion or high tumor cell proliferation argues against a major role of PSCA for regulation of cell cycle or genomic integrity. PSCA expression is linked to favorable prognosis. PSCA measurement is a candidate for inclusion in multi-parametric prognostic prostate cancer tests.
AB - BACKGROUND: Prostate Stem Cell Antigen (PSCA) is frequently expressed in prostate cancer but its exact function is unclear.METHODS: To clarify contradictory findings on the prognostic role of PSCA expression, a tissue microarray containing 13,665 prostate cancers was analyzed by immunohistochemistry.RESULTS: PSCA staining was absent in normal epithelial and stromal cells of the prostate. Membranous and cytoplasmic PSCA staining was seen in 53.7% of 9642 interpretable tumors. Staining was weak in 22.4%, moderate in 24.5% and strong in 6.8% of tumors. PSCA expression was associated with favorable pathological and clinical tumor features: Early pathological tumor stage (p < 0.0001), low Gleason grade (p < 0.0001), absence of lymph node metastasis (p < 0.0001), low pre-operative PSA level (p = 0.0118), negative surgical margin (p < 0.0001) and reduced PSA recurrence (p < 0.0001). PSCA expression was an independent predictor of prognosis in multivariate analysis (hazard ratio 0.84, p < 0.0001).CONCLUSIONS: The absence of statistical relationship to TMPRSS2:ERG fusion status, chromosomal deletion or high tumor cell proliferation argues against a major role of PSCA for regulation of cell cycle or genomic integrity. PSCA expression is linked to favorable prognosis. PSCA measurement is a candidate for inclusion in multi-parametric prognostic prostate cancer tests.
KW - Journal Article
U2 - 10.1186/s12885-018-4547-7
DO - 10.1186/s12885-018-4547-7
M3 - SCORING: Journal article
C2 - 29855276
VL - 18
SP - 612
JO - BMC CANCER
JF - BMC CANCER
SN - 1471-2407
IS - 1
ER -