Polyoma virus-associated carcinomas of the urologic tract : a clinicopathologic and molecular study
In recent years, there has been increased interest in carcinomas of the urologic tract, that demonstrate association with the polyoma virus BK arising in immunosuppressed individuals, though the nature of this association is uncertain. To begin to understand this phenomenon, we reviewed the clinical, morphological, and immunohistochemical features of 11 carcinomas of the urologic tract, mainly urothelial (N = 9) and collecting duct carcinomas (N = 2), occurring during immunosuppression, and expressing polyoma virus T-antigen by immunohistochemistry. These were compared to a control group of carcinomas (N = 8), also arising during immunosuppression, but without T-antigen expression. A subset of both groups were also studied by hybrid capture-based DNA sequencing, probing not only for 479 cancer-related human genes, but also for polyoma and other viral sequences. Polyoma T-antigen-expressing tumors arose in 7 males and 4 females, at a median age of 66, and were aggressive, high-grade tumors with more than 1 variant morphologic pattern identified in 81% of cases, and a majority (73%) presenting at high stage category (>pT3). Diffuse polyoma T-antigen staining was seen in 91% of cases, with co-localization of aberrant p53 staining in 89%. Sequencing detected a lower number of deleterious mutations among T-antigen-expressing cases (average 1.62; 1/8 with TP53 mutation) compared to control cases (average 3.5, 2/4 with TP53 mutation). Only BK virus was detected with clonal integration and breakpoints randomly distributed across the human and viral genomes in 5/5 of the polyoma T-antigen-expressing carcinomas, and in none of the controls (0/4). In summary, these findings identify aggressive clinicopathologic features of polyoma T-antigen-expressing carcinomas, document BK as the strain involved, and associate BK viral integration with T-antigen expression and p53 aberrancy. While the apparent randomness of viral insertion sites is functionally unclear, the differing rates of mutations between T-antigen-expressing and control cases is intriguing.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2018 |
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| Erschienen: |
2018 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:31 |
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| Enthalten in: |
Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc - 31(2018), 9 vom: 15. Sept., Seite 1429-1441 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Sirohi, Deepika [VerfasserIn] |
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| Links: |
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| Themen: |
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| Anmerkungen: |
Date Completed 17.07.2019 Date Revised 10.02.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1038/s41379-018-0065-z |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM284114642 |
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| 100 | 1 | |a Sirohi, Deepika |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Polyoma virus-associated carcinomas of the urologic tract |b a clinicopathologic and molecular study |
| 264 | 1 | |c 2018 | |
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| 500 | |a Date Revised 10.02.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a In recent years, there has been increased interest in carcinomas of the urologic tract, that demonstrate association with the polyoma virus BK arising in immunosuppressed individuals, though the nature of this association is uncertain. To begin to understand this phenomenon, we reviewed the clinical, morphological, and immunohistochemical features of 11 carcinomas of the urologic tract, mainly urothelial (N = 9) and collecting duct carcinomas (N = 2), occurring during immunosuppression, and expressing polyoma virus T-antigen by immunohistochemistry. These were compared to a control group of carcinomas (N = 8), also arising during immunosuppression, but without T-antigen expression. A subset of both groups were also studied by hybrid capture-based DNA sequencing, probing not only for 479 cancer-related human genes, but also for polyoma and other viral sequences. Polyoma T-antigen-expressing tumors arose in 7 males and 4 females, at a median age of 66, and were aggressive, high-grade tumors with more than 1 variant morphologic pattern identified in 81% of cases, and a majority (73%) presenting at high stage category (>pT3). Diffuse polyoma T-antigen staining was seen in 91% of cases, with co-localization of aberrant p53 staining in 89%. Sequencing detected a lower number of deleterious mutations among T-antigen-expressing cases (average 1.62; 1/8 with TP53 mutation) compared to control cases (average 3.5, 2/4 with TP53 mutation). Only BK virus was detected with clonal integration and breakpoints randomly distributed across the human and viral genomes in 5/5 of the polyoma T-antigen-expressing carcinomas, and in none of the controls (0/4). In summary, these findings identify aggressive clinicopathologic features of polyoma T-antigen-expressing carcinomas, document BK as the strain involved, and associate BK viral integration with T-antigen expression and p53 aberrancy. While the apparent randomness of viral insertion sites is functionally unclear, the differing rates of mutations between T-antigen-expressing and control cases is intriguing | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 700 | 1 | |a Vaske, Charlie |e verfasserin |4 aut | |
| 700 | 1 | |a Sanborn, Zack |e verfasserin |4 aut | |
| 700 | 1 | |a Smith, Steven C |e verfasserin |4 aut | |
| 700 | 1 | |a Don, Michelle D |e verfasserin |4 aut | |
| 700 | 1 | |a Lindsey, Kathryn G |e verfasserin |4 aut | |
| 700 | 1 | |a Federman, Scot |e verfasserin |4 aut | |
| 700 | 1 | |a Vankalakunti, Mahesha |e verfasserin |4 aut | |
| 700 | 1 | |a Koo, Jamie |e verfasserin |4 aut | |
| 700 | 1 | |a Bose, Shikha |e verfasserin |4 aut | |
| 700 | 1 | |a Peralta-Venturina, Mariza de |e verfasserin |4 aut | |
| 700 | 1 | |a Ziffle, Jessica van |e verfasserin |4 aut | |
| 700 | 1 | |a Grenert, James P |e verfasserin |4 aut | |
| 700 | 1 | |a Miller, Steve |e verfasserin |4 aut | |
| 700 | 1 | |a Chiu, Charles |e verfasserin |4 aut | |
| 700 | 1 | |a Amin, Mahul B |e verfasserin |4 aut | |
| 700 | 1 | |a Simko, Jeffry P |e verfasserin |4 aut | |
| 700 | 1 | |a Stohr, Bradley A |e verfasserin |4 aut | |
| 700 | 1 | |a Luthringer, Daniel J |e verfasserin |4 aut | |
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