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Xing S, Liu A, Yang X, Chen L, Xu D. Tubulocystic renal cell carcinoma: Two-case report and literature review. Int J Immunopathol Pharmacol 2021; 35:20587384211002966. [PMID: 33726547 PMCID: PMC7975446 DOI: 10.1177/20587384211002966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Tubulocystic renal cell carcinoma is a rare neoplasm of kidney with low metastatic tendency. There has only been a relatively small collection of literature dedicated to this subtype. Here we present two cases diagnosed in our center with detailed clinical information. Along with literature review, we aim to paint a comprehensive profile of TC-RCC. Hematuria and asthenia could be the chief complaints although most patients are asymptomatic. This lesion has a signature multilocular cystic form on radiology and enhancement of septa should reveal malignancy. Histologically, the cysts are lined by a single layer of flattened, cuboidal/columnar, and hobnail epithelium with enlarged nuclei and intermediate to large nucleoli. PAX8 and AMACR are most commonly positive while CD10 or CK7 could be focally stained in some cases. Overall, the diagnosis of TC-RCC should be based on comprehensive clinical and molecular results because early determination of the lesion could prelude a timely intervention and favorable prognosis.
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Affiliation(s)
- Siwei Xing
- Department of Urology, Shanghai Jiao
Tong University Medical School Affiliated Ruijin Hospital, Shanghai, China
| | - Ao Liu
- Department of Urology, Shanghai Jiao
Tong University Medical School Affiliated Ruijin Hospital, Shanghai, China
| | - Xiaoqun Yang
- Department of Pathology, Shanghai Jiao
Tong University Medical School Affiliated Ruijin Hospital, Shanghai, China
| | - Lu Chen
- Department of Urology, Shanghai Jiao
Tong University Medical School Affiliated Ruijin Hospital, Shanghai, China
| | - Danfeng Xu
- Department of Urology, Shanghai Jiao
Tong University Medical School Affiliated Ruijin Hospital, Shanghai, China
- Danfeng Xu, Department of Urology, Shanghai
Jiao Tong University Medical School Affiliated Ruijin Hospital, No. 197, Ruijin
2nd Road, Shanghai 200025, China.
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Kajdasz A, Majer W, Kluzek K, Sobkowiak J, Milecki T, Derebecka N, Kwias Z, Bluyssen HAR, Wesoly J. Identification of RCC Subtype-Specific microRNAs-Meta-Analysis of High-Throughput RCC Tumor microRNA Expression Data. Cancers (Basel) 2021; 13:548. [PMID: 33535553 PMCID: PMC7867039 DOI: 10.3390/cancers13030548] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/19/2021] [Accepted: 01/20/2021] [Indexed: 11/17/2022] Open
Abstract
Renal cell carcinoma (RCC) is one of the most common cancers worldwide with a nearly non-symptomatic course until the advanced stages of the disease. RCC can be distinguished into three subtypes: papillary (pRCC), chromophobe (chRCC) and clear cell renal cell carcinoma (ccRCC) representing up to 75% of all RCC cases. Detection and RCC monitoring tools are limited to standard imaging techniques, in combination with non-RCC specific morphological and biochemical read-outs. RCC subtype identification relays mainly on results of pathological examination of tumor slides. Molecular, clinically applicable and ideally non-invasive tools aiding RCC management are still non-existent, although molecular characterization of RCC is relatively advanced. Hence, many research efforts concentrate on the identification of molecular markers that will assist with RCC sub-classification and monitoring. Due to stability and tissue-specificity miRNAs are promising candidates for such biomarkers. Here, we performed a meta-analysis study, utilized seven NGS and seven microarray RCC studies in order to identify subtype-specific expression of miRNAs. We concentrated on potentially oncocytoma-specific miRNAs (miRNA-424-5p, miRNA-146b-5p, miRNA-183-5p, miRNA-218-5p), pRCC-specific (miRNA-127-3p, miRNA-139-5p) and ccRCC-specific miRNAs (miRNA-200c-3p, miRNA-362-5p, miRNA-363-3p and miRNA-204-5p, 21-5p, miRNA-224-5p, miRNA-155-5p, miRNA-210-3p) and validated their expression in an independent sample set. Additionally, we found ccRCC-specific miRNAs to be differentially expressed in ccRCC tumor according to Fuhrman grades and identified alterations in their isoform composition in tumor tissue. Our results revealed that changes in the expression of selected miRNA might be potentially utilized as a tool aiding ccRCC subclass discrimination and we propose a miRNA panel aiding RCC subtype distinction.
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Affiliation(s)
- Arkadiusz Kajdasz
- Laboratory of Human Molecular Genetics, Faculty of Biology, Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University Poznan, Uniwersytetu Poznanskiego 6, 61-614 Poznan, Poland; (K.K.); (H.A.R.B.)
| | - Weronika Majer
- Laboratory of High Throughput Technologies, Faculty of Biology, Adam Mickiewicz University Poznan, Uniwersytetu Poznanskiego 6, 61-614 Poznan, Poland; (W.M.); (N.D.)
| | - Katarzyna Kluzek
- Laboratory of Human Molecular Genetics, Faculty of Biology, Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University Poznan, Uniwersytetu Poznanskiego 6, 61-614 Poznan, Poland; (K.K.); (H.A.R.B.)
| | - Jacek Sobkowiak
- Department of Urology, Poznan University of Medical Sciences, Szwajcarska 3, 61-285 Poznan, Poland; (J.S.); (T.M.); (Z.K.)
| | - Tomasz Milecki
- Department of Urology, Poznan University of Medical Sciences, Szwajcarska 3, 61-285 Poznan, Poland; (J.S.); (T.M.); (Z.K.)
| | - Natalia Derebecka
- Laboratory of High Throughput Technologies, Faculty of Biology, Adam Mickiewicz University Poznan, Uniwersytetu Poznanskiego 6, 61-614 Poznan, Poland; (W.M.); (N.D.)
| | - Zbigniew Kwias
- Department of Urology, Poznan University of Medical Sciences, Szwajcarska 3, 61-285 Poznan, Poland; (J.S.); (T.M.); (Z.K.)
| | - Hans A. R. Bluyssen
- Laboratory of Human Molecular Genetics, Faculty of Biology, Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University Poznan, Uniwersytetu Poznanskiego 6, 61-614 Poznan, Poland; (K.K.); (H.A.R.B.)
| | - Joanna Wesoly
- Laboratory of High Throughput Technologies, Faculty of Biology, Adam Mickiewicz University Poznan, Uniwersytetu Poznanskiego 6, 61-614 Poznan, Poland; (W.M.); (N.D.)
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