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Möller K, Kluth M, Ahmed M, Burkhardt L, Möller-Koop C, Büscheck F, Weidemann S, Tsourlakis MC, Minner S, Heinzer H, Huland H, Graefen M, Sauter G, Schlomm T, Dum D, Simon R. Chromosome 5 harbors two independent deletion hotspots at 5q13 and 5q21 that characterize biologically different subsets of aggressive prostate cancer. Int J Cancer 2020; 148:748-758. [PMID: 33045100 DOI: 10.1002/ijc.33344] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/10/2020] [Accepted: 08/19/2020] [Indexed: 12/17/2022]
Abstract
Deletion of chromosome 5q is common in prostate cancer and is linked to aggressive disease. Most previous studies focused on 5q21 where CHD1 is located, but deletion of mapping studies has identified a second deletion hotspot at 5q13. To clarify the prevalence and clinical relevance of 5q13 deletions and to determine the relative importance of 5q13 and 5q21 abnormalities, a tissue microarray containing samples from 12 427 prostate cancers was analyzed by fluorescence in situ hybridization. Deletion of 5q13 and 5q21 was found in 13.5% and 10%, respectively, of 7932 successfully analyzed cancers. Deletion was restricted to 5q13 in 49.4% and to 5q21 in 32.0% of cancers with a 5q deletion. Only 18.6% of 5q-deleted cancers had deletions of both loci. Both 5q13 and 5q21 deletions were significantly linked to advanced tumor stage, high Gleason grade, nodal metastasis and early biochemical recurrence (P < .005 each). Cancers with co-deletion of 5q13 and 5q21 had a worse prognosis than cancers with isolated 5q13 or 5q21 deletion (P = .0080). Comparison with TMPRSS2:ERG fusion status revealed that 5q21 deletions were tightly linked to ERG negativity (P < .0001) while 5q13 deletions were unrelated to the ERG status. In summary, 5q13 deletion and 5q21 deletion are common, but independent genomic alterations with different functional effects lead to aggressive prostate cancer.
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Affiliation(s)
- Katharina Möller
- Institute of Pathology, University Medical Center, Hamburg-Eppendorf, Germany
| | - Martina Kluth
- Institute of Pathology, University Medical Center, Hamburg-Eppendorf, Germany
| | - Malik Ahmed
- Institute of Pathology, University Medical Center, Hamburg-Eppendorf, Germany
| | - Lia Burkhardt
- Institute of Pathology, University Medical Center, Hamburg-Eppendorf, Germany
| | | | - Franziska Büscheck
- Institute of Pathology, University Medical Center, Hamburg-Eppendorf, Germany
| | - Sören Weidemann
- Institute of Pathology, University Medical Center, Hamburg-Eppendorf, Germany
| | | | - Sarah Minner
- Institute of Pathology, University Medical Center, Hamburg-Eppendorf, Germany
| | - Hans Heinzer
- Martini-Clinic, Prostate Cancer Center at University Medical Center, Hamburg-Eppendorf, Germany
| | - Hartwig Huland
- Martini-Clinic, Prostate Cancer Center at University Medical Center, Hamburg-Eppendorf, Germany
| | - Markus Graefen
- Martini-Clinic, Prostate Cancer Center at University Medical Center, Hamburg-Eppendorf, Germany
| | - Guido Sauter
- Institute of Pathology, University Medical Center, Hamburg-Eppendorf, Germany
| | - Thorsten Schlomm
- Department of Urology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - David Dum
- Institute of Pathology, University Medical Center, Hamburg-Eppendorf, Germany
| | - Ronald Simon
- Institute of Pathology, University Medical Center, Hamburg-Eppendorf, Germany
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Kluth M, Harasimowicz S, Burkhardt L, Grupp K, Krohn A, Prien K, Gjoni J, Haß T, Galal R, Graefen M, Haese A, Simon R, Hühne-Simon J, Koop C, Korbel J, Weischenfeld J, Huland H, Sauter G, Quaas A, Wilczak W, Tsourlakis MC, Minner S, Schlomm T. Clinical significance of different types of p53 gene alteration in surgically treated prostate cancer. Int J Cancer 2014; 135:1369-80. [PMID: 24523142 DOI: 10.1002/ijc.28784] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 11/22/2013] [Accepted: 12/19/2013] [Indexed: 01/14/2023]
Abstract
Despite a multitude of p53 immunohistochemistry (IHC) studies, data on the combined effect of nuclear p53 protein accumulation and TP53 genomic inactivation are lacking for prostate cancer. A tissue microarray including 11,152 prostate cancer samples was analyzed by p53 IHC and fluorescence in situ hybridization. Nuclear p53 accumulation was found in 10.1% of patients including 1.4% with high-level and 8.7% with low-level immunostaining. TP53 sequencing revealed that 17 of 22 (77%) cases with high-level p53 immunostaining, but only 3% (1 of 31) low-level p53 cases carried putative dominant-negative mutations. TP53 deletions occurred in 14.8% of cancers. Both deletions and protein accumulation were linked to unfavorable tumor phenotype and prostate specific antigen (PSA) recurrence (p<0.0001 each). The combination of both methods revealed subgroups with remarkable differences in their clinical course. Tumors with either TP53 deletion (14%) or low-level p53 positivity (8.7%) had identical risks of PSA recurrence, which were markedly higher than in cancers without p53 alterations (p<0.0001). Tumors with both p53 deletion and low-level p53 positivity (1.5%) had a worse prognosis than patients with only one of these alterations (p<0.0001). Tumors with strong p53 immunostaining or homozygous inactivation through deletion of one allele and disrupting translocation involving the second allele had the worst outcome, independent from clinical and pathological parameters. These data demonstrate a differential clinical impact of various TP53 alterations in prostate cancer. Strong p53 immunostaining-most likely accompanying dominant negative or oncogenic p53 mutation-has independent prognostic relevance and may thus represent a clinical useful molecular feature of prostate cancer.
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Affiliation(s)
- Martina Kluth
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Clauditz TS, Gontarewicz A, Lebok P, Tsourlakis MC, Grob TJ, Münscher A, Sauter G, Bokemeyer C, Knecht R, Wilczak W. Epidermal growth factor receptor (EGFR) in salivary gland carcinomas: potentials as therapeutic target. Oral Oncol 2012; 48:991-996. [PMID: 22694907 DOI: 10.1016/j.oraloncology.2012.05.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 05/02/2012] [Indexed: 12/14/2022]
Abstract
AIMS Epidermal growth factor (EGFR) is involved in angiogenesis, cell differentiation, proliferation and progression of many cancers and is an important therapy target in lung and colorectal cancer. To determine the potential applicability of EGFR targeted therapies, EGFR status of over 800 salivary gland tumors of different entities were analyzed on DNA and protein level by FISH and IHC. MATERIALS AND METHODS A tissue microarray was constructed from 721 carcinomas and 205 adenomas of the salivary gland. EGFR expression and EGFR gene copy number was assessed by means of immunohistochemistry and fluorescence in situ hybridization (FISH). EGFR mutation analysis of exon 19 and 21 was performed in a subset of 107 carcinomas. RESULTS Positive immunohistochemical staining (definition?) for EGFR was shown in 324 of 663 (48.9%) salivary gland carcinomas. The frequency was dependent on the tumor entity and ranged from 17.9% (30 of 168 cases) positive immunostaining in acinic cell adenocarcinomas to 85.7% (42 of 49 cases) in Warthin tumors. No EGFR amplification was found by FISH. EGFR mutation analysis of Exon 19 and 21 in 107 salivary gland carcinomas revealed mutations in two acinic cell adenocarcinomas. CONCLUSION EGFR protein expression is common in salivary gland tumors but is not associated with gene amplification. Activating mutations of EGFR are rare. Nonetheless, selected cases of patients with salivary gland carcinomas might potentially benefit of anti-EGFR therapy.
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Affiliation(s)
- Till Sebastian Clauditz
- Institute of Pathology, Hubertus-Wald-Cancer-Center, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany.
| | - Artur Gontarewicz
- Institute of Pathology, Hubertus-Wald-Cancer-Center, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Patrick Lebok
- Institute of Pathology, Hubertus-Wald-Cancer-Center, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Maria-Christina Tsourlakis
- Institute of Pathology, Hubertus-Wald-Cancer-Center, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Tobias J Grob
- Institute of Pathology, Hubertus-Wald-Cancer-Center, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Adrian Münscher
- Department of Otolaryngology, Head and Neck Surgery, Hubertus-Wald-Cancer-Center, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Guido Sauter
- Institute of Pathology, Hubertus-Wald-Cancer-Center, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Carsten Bokemeyer
- Department of Oncology, Haematology, Bone Marrow Transplantation and Section Pneumology, Hubertus-Wald-Cancer-Center, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Rainald Knecht
- Department of Otolaryngology, Head and Neck Surgery, Hubertus-Wald-Cancer-Center, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Waldemar Wilczak
- Institute of Pathology, Hubertus-Wald-Cancer-Center, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
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Zustin J, Boddin K, Tsourlakis MC, Burandt E, Mirlacher M, Jaenicke F, Izbicki J, Ruether W, Rueger JM, Bokemeyer C, Simon R, Sauter G. HER-2/neu analysis in breast cancer bone metastases. J Clin Pathol 2009; 62:542-6. [DOI: 10.1136/jcp.2008.059717] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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