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Kamanda S, Huanca-Amesquita L, Milla E, Argani P, Epstein JI. Clinicopathologic Classification of Renal Cell Carcinoma in Patients ≤40 Years Old From Peru. Int J Surg Pathol 2024; 32:35-45. [PMID: 37062985 PMCID: PMC10577151 DOI: 10.1177/10668969231167539] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
INTRODUCTION There are scant data on renal cell carcinoma (RCC) from relatively younger patients in South America using contemporary classification. METHODS Fifty-nine consecutively treated patients with RCC (≤40 years old) were assessed from the National Institute of Neoplastic Diseases in Peru from 2008 to 2020 (34 males; 25 females), age range of 13 to 40 years. RESULTS Most common presenting symptoms were flank pain (n = 40), hematuria (n = 19), and weight loss (n = 12). Associated conditions included 4 patients with proven or presumed tuberous sclerosis and 1 patient with von Hippel Lindau syndrome, all with clear cell RCC. Tumor histopathology was clear cell RCC in 32 of 59 (54%), chromophobe RCC in 6 of 59 (10%), and 5 of 59 (8%) each of papillary RCC and MiT family translocation-associated RCC. Four of 59 (7%) were FH-deficient RCC and 2 of 59 (3%) remained unclassified. The remaining tumors were isolated examples of clear cell papillary renal cell tumor, eosinophilic solid and cystic RCC (ESC RCC), RCC with fibromyomatous stroma, sarcomatoid RCC, and sarcomatoid clear cell RCC. Of the 4 FH-deficient RCCs, none had the classic morphology. The 5 MiT family translocation RCCs had variable morphology. There were 41 tumors without recurrence or metastases, 3 tumors with local recurrence only, 8 tumors with metastases only, and 7 tumors with both local recurrence and metastases. CONCLUSIONS The current study demonstrates the importance of special studies in accurately classifying RCC in younger individuals. The distribution of RCC subtypes in younger individuals is similar between 2 representative large institutions of the United States and Peru.
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Affiliation(s)
- Sonia Kamanda
- Department of Pathology, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | | | - Esperanza Milla
- Department of Pathology, National Institute of Neoplastic Diseases, Lima, Peru
| | - Pedram Argani
- Department of Pathology, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - Jonathan I. Epstein
- Department of Pathology, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
- Departments of Urology, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
- Departments of Oncology, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
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Fang YW, Song HC, Sun N, Zhang WP. Non-Wilms' renal tumors in children: experience with 139 cases treated at a single center. BMC Urol 2022; 22:89. [PMID: 35733141 PMCID: PMC9219123 DOI: 10.1186/s12894-022-01042-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 06/08/2022] [Indexed: 11/17/2022] Open
Abstract
Background Pediatric non-Wilms renal tumors (NWRTs), which comprise a small proportion of renal tumors, are a heterogeneous group of neoplasms with variable malignant potential, mortality, and response to treatment. We performed this study to determine the clinical characteristics, management and prognosis of children with Pediatric NWRTs. Methods Medical records of all patients (n = 139) treated for NWRTs over a 12-year period (2008.01–2019.10) at a single center were reviewed retrospectively. Results The histopathological groups of NWRTs included malignant rhabdoid tumor of the kidney (MRTK) (n: 30, 21.6%), renal cell cancer (RCC) (n: 26,18.7%), clear cell sarcoma of the kidney (CCSK) (n: 24,17.3%), congenital mesoblastic nephroma (CMN) (n: 21,15.1%), cystic nephroma (CN) (n: 16,11.5%), metanephric tumors (n: 12, 8.6%), renal angiomyoliporma (RAML) (n: 3, 2.2%), renal primitive neuroectodermal tumor (n: 2, 1.4%), renal hemangioma (n: 2, 1.4%), inflammatory myofibroblastic tumor (n: 2, 1.4%), ossifying renal tumor of infancy (ORTI) (n: 1, 0.7%). The distribution of all malignant NWRTs, including MRTK, CCSK, RCC and PNET, according to stage was as follows: stages I (n = 26), II (n = 16), III (n = 29), and IV (n = 11). The summary table shows the treatment offered to children with NWRTs. A total of 123 children were followed up for an average of 42 months. Sixteen children were lost to follow-up. Tumor-free survival was observed in 94 children. One patient who suffered from RCC is currently receiving targeted therapy and survives with the tumor. Twenty-eight children (22.8%) died. Conclusions Pediatric NWRTs comprise 19.1% of all renal tumors in our single center. Most NWRTs can readily be distinguished using a range of immunohistochemical markers. Molecular genetic profiling has allowed much progress in the understanding of this group of tumors, making diagnosis and classification less difficult. The mainstay treatment of malignant NWRTs, including MRTK, CCSK, RCC and PNET, is comprehensive treatment. The mainstay treatment of benign NWRTs, including RAML, CN, ORTI, CMN, metanephric tumors, and renal hemangioma, is surgical resection alone and when the tumor diameter is smaller than 7 cm and the tumor locates in one pole, NSS can be performed.
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Affiliation(s)
- Yi Wei Fang
- Department of Urology, National Children's Medical Center, Beijing Children's Hospital of Capital Medical University, No. 56 Nanlishi St, Xicheng District, Beijing, 100045, China
| | - Hong Cheng Song
- Department of Urology, National Children's Medical Center, Beijing Children's Hospital of Capital Medical University, No. 56 Nanlishi St, Xicheng District, Beijing, 100045, China.
| | - Ning Sun
- Department of Urology, National Children's Medical Center, Beijing Children's Hospital of Capital Medical University, No. 56 Nanlishi St, Xicheng District, Beijing, 100045, China.
| | - Wei Ping Zhang
- Department of Urology, National Children's Medical Center, Beijing Children's Hospital of Capital Medical University, No. 56 Nanlishi St, Xicheng District, Beijing, 100045, China
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van der Beek JN, Hol JA, Coulomb‐l'Hermine A, Graf N, van Tinteren H, Pritchard‐Jones K, Houwing ME, de Krijger RR, Vujanic GM, Dzhuma K, Schenk J, Littooij AS, Ramírez‐Villar GL, Murphy D, Ray S, Al‐Saadi R, Gessler M, Godzinski J, Ruebe C, Collini P, Verschuur AC, Frisk T, Vokuhl C, Hulsbergen‐van de Kaa CA, de Camargo B, Sandstedt B, Selle B, Tytgat GAM, van den Heuvel‐Eibrink MM. Characteristics and outcome of pediatric renal cell carcinoma patients registered in the International Society of Pediatric Oncology (SIOP) 93-01, 2001 and UK-IMPORT database: A report of the SIOP-Renal Tumor Study Group. Int J Cancer 2021; 148:2724-2735. [PMID: 33460450 PMCID: PMC8048605 DOI: 10.1002/ijc.33476] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 01/04/2021] [Accepted: 01/05/2021] [Indexed: 01/16/2023]
Abstract
In children, renal cell carcinoma (RCC) is rare. This study is the first report of pediatric patients with RCC registered by the International Society of Pediatric Oncology-Renal Tumor Study Group (SIOP-RTSG). Pediatric patients with histologically confirmed RCC, registered in SIOP 93-01, 2001 and UK-IMPORT databases, were included. Event-free survival (EFS) and overall survival (OS) were analyzed using the Kaplan-Meier method. Between 1993 and 2019, 122 pediatric patients with RCC were registered. Available detailed data (n = 111) revealed 56 localized, 30 regionally advanced, 25 metastatic and no bilateral cases. Histological classification according to World Health Organization 2004, including immunohistochemical and molecular testing for transcription factor E3 (TFE3) and/or EB (TFEB) translocation, was available for 65/122 patients. In this group, the most common histological subtypes were translocation type RCC (MiT-RCC) (36/64, 56.3%), papillary type (19/64, 29.7%) and clear cell type (4/64, 6.3%). One histological subtype was not reported. In the remaining 57 patients, translocation testing could not be performed, or TFE-cytogenetics and/or immunohistochemistry results were missing. In this group, the most common RCC histological subtypes were papillary type (21/47, 44.7%) and clear cell type (11/47, 23.4%). Ten histological subtypes were not reported. Estimated 5-year (5y) EFS and 5y OS of the total group was 70.5% (95% CI = 61.7%-80.6%) and 84.5% (95% CI = 77.5%-92.2%), respectively. Estimated 5y OS for localized, regionally advanced, and metastatic disease was 96.8%, 92.3%, and 45.6%, respectively. In conclusion, the registered pediatric patients with RCC showed a reasonable outcome. Survival was substantially lower for patients with metastatic disease. This descriptive study stresses the importance of full, prospective registration including TFE-testing.
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Affiliation(s)
- Justine N. van der Beek
- Princess Máxima Center for Pediatric OncologyUtrechtThe Netherlands
- Department of Radiology and Nuclear MedicineUniversity Medical Center Utrecht/Wilhelmina Children's Hospital, Utrecht UniversityUtrechtThe Netherlands
| | - Janna A. Hol
- Princess Máxima Center for Pediatric OncologyUtrechtThe Netherlands
| | | | - Norbert Graf
- Department of Pediatric Oncology and HematologySaarland University Medical Center and Saarland University Faculty of MedicineHomburgGermany
| | | | | | - Maite E. Houwing
- Princess Máxima Center for Pediatric OncologyUtrechtThe Netherlands
| | - Ronald R. de Krijger
- Princess Máxima Center for Pediatric OncologyUtrechtThe Netherlands
- Department of PathologyUniversity Medical Center UtrechtUtrechtThe Netherlands
| | | | - Kristina Dzhuma
- UCL Great Ormond Street Institute of Child HealthUniversity College LondonLondonUK
| | - Jens‐Peter Schenk
- Clinic of Diagnostic and Interventional Radiology, Division of Pediatric RadiologyHeidelberg University HospitalHeidelbergGermany
| | - Annemieke S. Littooij
- Princess Máxima Center for Pediatric OncologyUtrechtThe Netherlands
- Department of Radiology and Nuclear MedicineUniversity Medical Center Utrecht/Wilhelmina Children's Hospital, Utrecht UniversityUtrechtThe Netherlands
| | | | - Dermot Murphy
- Department of Paediatric OncologyRoyal Hospital for ChildrenGlasgowScotland
| | - Satyajit Ray
- Department of Paediatric OncologyRoyal Hospital for ChildrenGlasgowScotland
| | - Reem Al‐Saadi
- UCL Great Ormond Street Institute of Child HealthUniversity College LondonLondonUK
- Department of HistopathologyGreat Ormond Street Hospital for Children NHS Foundation TrustLondonUK
| | - Manfred Gessler
- Theodor‐Boveri‐Institute/BiocenterUniversity of WuerzburgWuerzburgGermany
| | - Jan Godzinski
- Department of Paediatric SurgeryMarciniak HospitalWroclawPoland
- Department of Paediatric Traumatology and Emergency MedicineMarciniak HospitalWroclawPoland
| | - Christian Ruebe
- Department of Radiation OncologySaarland University Medical Center and Saarland University Faculty of MedicineHomburgGermany
| | - Paola Collini
- Department of PathologyFondazione IRCCS Istituto Nazionale dei TumoriMilanoItaly
| | - Arnaud C. Verschuur
- Department of Pediatric OncologyHôpital d'Enfants de la TimoneMarseilleFrance
| | - Tony Frisk
- Department of Women's and Children's HealthKarolinska InstitutetStockholmSweden
| | - Christian Vokuhl
- Section of Pediatric PathologyUniversity Hospital BonnBonnGermany
| | | | | | - Bengt Sandstedt
- Childhood Cancer Research UnitAstrid Lindgren's Children's Hospital, Karolinska InstitutetStockholmSweden
| | - Barbara Selle
- Department of Pediatric Hematology and OncologySt. Annastift Children's HospitalLudwigshafenGermany
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He M, Cai J, Zhu K, Gu W, Li M, Xiong J, Guan Z, Wang J, Shu Q. Renal cell carcinoma in children and adolescents: Single-center experience and literature review. Medicine (Baltimore) 2021; 100:e23717. [PMID: 33466124 PMCID: PMC7808530 DOI: 10.1097/md.0000000000023717] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 11/16/2020] [Indexed: 01/05/2023] Open
Abstract
Renal cell carcinoma (RCC) is infrequent in the pediatric population. In addition, till date, only a few reports have summarized the characteristics of pediatric RCC and differences between pediatric and adult RCC. Therefore, the current study aimed to investigate the clinical characteristics of RCC in children and adolescents, and identify the differences between children and adolescent patients and adult patients through literature retrieval.The data of 13 pediatric patients diagnosed with RCC at the Children's Hospital of Zhejiang University School of Medicine between 2005 and 2019 were retrospectively analyzed.Three patients were aged <5 years, 2 were aged 6 to 10 years, and 8 were aged 11 to 18 years. Among the 13 patients, common clinical manifestations included abdominal pain in 5 patients, gross hematuria in 4, and an abdominal mass in 1, while the other 3 patients were incidentally detected after an abdominal contusion. The pathological types were microphthalmia family translocation RCC in 9 patients, clear-cell RCC in 2, papillary RCC in 1, and unclassified in 1. All the children underwent radical nephrectomy, including 2 patients with advanced disease who underwent preoperative transcatheter arterial chemoembolization. The mean follow-up time was 58.6 months. Two patients died after 4 and 17 months of follow-up, respectively.In conclusion, microphthalmia family translocation renal cell carcinoma is the predominant type of pediatric RCC associated with advanced tumor stage. The early diagnosis and treatment of pediatric patients is important for improving prognosis. Nevertheless, future studies are urgently needed to determine the treatment for pediatric advanced RCC to increase the survival rate.
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Affiliation(s)
- Min He
- Department of Surgical Oncology
| | | | - Kun Zhu
- Department of Pathology, The Children's Hospital, Zhejiang University School Of Medicine, National Clinical Research Center For Child Health, Hangzhou, China
| | - Weizhong Gu
- Department of Pathology, The Children's Hospital, Zhejiang University School Of Medicine, National Clinical Research Center For Child Health, Hangzhou, China
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Zhong W, Chen B, Zhong H, Huang C, Lin J, Zhu M, Chen M, Lin Y, Lin Y, Huang J. Identification of 12 immune-related lncRNAs and molecular subtypes for the clear cell renal cell carcinoma based on RNA sequencing data. Sci Rep 2020; 10:14412. [PMID: 32879362 PMCID: PMC7467926 DOI: 10.1038/s41598-020-71150-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 07/20/2020] [Indexed: 12/29/2022] Open
Abstract
Clear cell renal cell carcinoma (ccRCC) is the most common type of renal cell carcinoma (RCC). Despite the existing extensive research, the molecular and pathogenic mechanisms of ccRCC are elusive. We aimed to identify the immune-related lncRNA signature and molecular subtypes associated with ccRCC. By integrating 4 microarray datasets from Gene Expression Omnibus database, we identified 49 immune-related genes. The corresponding immune-related lncRNAs were further identified in the TCGA dataset. 12-lncRNAs prognostic and independent signature was identified through survival analysis and survival difference between risk groups was further identified based on the risk score. Besides, we identified 3 molecular subtypes and survival analysis result showed that cluster 2 has a better survival outcome. Further, ssGSEA enrichment analysis for the immune-associated gene sets revealed that cluster 1 corresponded to a high immune infiltration level. While cluster 2 and cluster 3 corresponded to low and medium immune infiltration level, respectively. In addition, we validated the 12-lncRNA prognostic signature and molecular subtypes in an external validation dataset from the ICGC database. In summary, we identified a 12-lncRNA prognostic signature which may provide new insights into the molecular mechanisms of ccRCC and the molecular subtypes provided a theoretical basis for personalized treatment by clinicians.
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Affiliation(s)
- Weimin Zhong
- The Fifth Hospital of Xiamen, Xiamen, 361101, Fujian Province, People's Republic of China
| | - Bin Chen
- The First Affiliated Hospital of Xiamen University, Xiamen University, Xiamen, 361003, Fujian Province, People's Republic of China
| | - Hongbin Zhong
- The Fifth Hospital of Xiamen, Xiamen, 361101, Fujian Province, People's Republic of China
| | - Chaoqun Huang
- The Fifth Hospital of Xiamen, Xiamen, 361101, Fujian Province, People's Republic of China
| | - Jianqiong Lin
- The Fifth Hospital of Xiamen, Xiamen, 361101, Fujian Province, People's Republic of China
| | - Maoshu Zhu
- The Fifth Hospital of Xiamen, Xiamen, 361101, Fujian Province, People's Republic of China
| | - Miaoxuan Chen
- The Fifth Hospital of Xiamen, Xiamen, 361101, Fujian Province, People's Republic of China
| | - Ying Lin
- The Fifth Hospital of Xiamen, Xiamen, 361101, Fujian Province, People's Republic of China
| | - Yao Lin
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, College of Life Sciences, Qishan Campus, Fujian Normal University, Fuzhou, 350117, Fujian Province, People's Republic of China.
| | - Jiyi Huang
- The Fifth Hospital of Xiamen, Xiamen, 361101, Fujian Province, People's Republic of China. .,Xiang'an Branch, The First Affiliated Hospital of Xiamen University, Xiamen University, Xiamen, 361101, Fujian Province, People's Republic of China.
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6
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van der Beek JN, Geller JI, de Krijger RR, Graf N, Pritchard-Jones K, Drost J, Verschuur AC, Murphy D, Ray S, Spreafico F, Dzhuma K, Littooij AS, Selle B, Tytgat GAM, van den Heuvel-Eibrink MM. Characteristics and Outcome of Children with Renal Cell Carcinoma: A Narrative Review. Cancers (Basel) 2020; 12:E1776. [PMID: 32635225 PMCID: PMC7407101 DOI: 10.3390/cancers12071776] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 06/30/2020] [Accepted: 07/01/2020] [Indexed: 12/20/2022] Open
Abstract
Pediatric renal cell carcinoma (RCC) is a rare type of kidney cancer, most commonly occurring in teenagers and young adolescents. Few relatively large series of pediatric RCC have been reported. Knowledge of clinical characteristics, outcome and treatment strategies are often based on the more frequently occurring adult types of RCC. However, published pediatric data suggest that clinical, molecular and histological characteristics of pediatric RCC differ from adult RCC. This paper summarizes reported series consisting of ≥10 RCC pediatric patients in order to create an up-to-date overview of the clinical and histopathological characteristics, treatment and outcome of pediatric RCC patients.
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Affiliation(s)
- Justine N. van der Beek
- Princess Máxima Center for Pediatric Oncology, 3584 CS Utrecht, The Netherlands; (R.R.d.K.); (J.D.); (A.S.L.); (G.A.M.T.); (M.M.v.d.H.-E.)
- Department of Radiology and Nuclear Medicine, University Medical Center Utrecht/Wilhelmina Children’s Hospital, Utrecht University, 3584 CX Utrecht, The Netherlands
| | - James I. Geller
- Division of Oncology, Cincinnati Children’s Hospital Medical Center, University of Cincinnati, Cincinnati, OH 45229, USA;
| | - Ronald R. de Krijger
- Princess Máxima Center for Pediatric Oncology, 3584 CS Utrecht, The Netherlands; (R.R.d.K.); (J.D.); (A.S.L.); (G.A.M.T.); (M.M.v.d.H.-E.)
- Department of Pathology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Norbert Graf
- Department of Pediatric Oncology & Hematology, Saarland University Medical Center and Saarland University Faculty of Medicine, D-66421 Homburg, Germany;
| | - Kathy Pritchard-Jones
- UCL Great Ormond Street Institute of Child Health, University College London, London WC1N 1EH, UK; (K.P.-J.); (K.D.)
| | - Jarno Drost
- Princess Máxima Center for Pediatric Oncology, 3584 CS Utrecht, The Netherlands; (R.R.d.K.); (J.D.); (A.S.L.); (G.A.M.T.); (M.M.v.d.H.-E.)
- Oncode Institute, 3521 AL Utrecht, The Netherlands
| | - Arnauld C. Verschuur
- Department of Pediatric Oncology, Hôpital d’Enfants de la Timone, APHM, 13005 Marseille, France;
| | - Dermot Murphy
- Department of Paediatric Oncology, Royal Hospital for Children, Glasgow G51 4TF, Scotland; (D.M.); (S.R.)
| | - Satyajit Ray
- Department of Paediatric Oncology, Royal Hospital for Children, Glasgow G51 4TF, Scotland; (D.M.); (S.R.)
| | - Filippo Spreafico
- Pediatric Oncology Unit, Department of Medical Oncology and Hematology, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milano, Italy;
| | - Kristina Dzhuma
- UCL Great Ormond Street Institute of Child Health, University College London, London WC1N 1EH, UK; (K.P.-J.); (K.D.)
| | - Annemieke S. Littooij
- Princess Máxima Center for Pediatric Oncology, 3584 CS Utrecht, The Netherlands; (R.R.d.K.); (J.D.); (A.S.L.); (G.A.M.T.); (M.M.v.d.H.-E.)
- Department of Radiology and Nuclear Medicine, University Medical Center Utrecht/Wilhelmina Children’s Hospital, Utrecht University, 3584 CX Utrecht, The Netherlands
| | - Barbara Selle
- Department of Pediatric Hematology and Oncology, St. Annastift Children’s Hospital, 67065 Ludwigshafen, Germany;
| | - Godelieve A. M. Tytgat
- Princess Máxima Center for Pediatric Oncology, 3584 CS Utrecht, The Netherlands; (R.R.d.K.); (J.D.); (A.S.L.); (G.A.M.T.); (M.M.v.d.H.-E.)
| | - Marry M. van den Heuvel-Eibrink
- Princess Máxima Center for Pediatric Oncology, 3584 CS Utrecht, The Netherlands; (R.R.d.K.); (J.D.); (A.S.L.); (G.A.M.T.); (M.M.v.d.H.-E.)
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Wang Z, Zhang Z, Zhang C, Xu Y. Identification of potential pathogenic biomarkers in clear cell renal cell carcinoma. Oncol Lett 2018; 15:8491-8499. [PMID: 29805586 PMCID: PMC5950538 DOI: 10.3892/ol.2018.8398] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 02/16/2018] [Indexed: 12/21/2022] Open
Abstract
The purpose of the present study was to screen potential pathogenic biomarkers of clear cell renal cell carcinoma (ccRCC) via microarray analysis. The mRNA and microRNA (miRNA) expression profiles of GSE96574 and GSE71302 were downloaded from the Gene Expression Omnibus (GEO) database, as well as the methylation profile of GSE61441. A total of 5 ccRCC tissue samples and 5 normal kidney tissue samples were contained in each profile of GSE96574 and GSE71302, and 46 ccRCC tissue samples and 46 normal kidney tissue samples were involved in GSE61441. The differentially expressed genes (DEGs) and the differentially expressed miRNAs (DEMs) were obtained via limma package in ccRCC tissues compared with normal kidney tissues. The Two Sample t-test and the Beta distribution test were used to identify the differentially methylated sites (DMSs). The Database for Annotation, Visualization and Integrated Discovery (DAVID) was used to perform the Gene Ontology (GO) term and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses of the DEGs. The targets of the DEMs were screened with the miRWalk database, and the further combination analyses of DEGs, DEMs and DMSs were conducted. Additionally, reverse transcription PCR (RT-PCR) and methylation-specific PCR (MS-PCR) were performed to detect the mRNA level and methylation status of HAPLN1. The mRNA levels of hsa-miR-204 and hsa-miR-218 were tested by RT-PCR. A total of 2,172 DEGs, 202 DEMs and 2,172 DMSs were identified in RCC samples compared with normal samples. The DEGs were enriched in 1,015 GO terms and 69 KEGG pathways. A total of 10,601 miRNA-gene pairs were identified in at least 5 algorithms of the miRWalk database. A total of 143 overlaps were identified between the DEGs and the differentially methylated genes. Furthermore, the DEGs were involved in 851 miRNA-gene pairs, including 127 pairs in which the target genes were negatively associated with their corresponding DEMs and DMSs. HAPLN1 was lowly expressed and highly methylated in ccRCC tissues, while hsa-miR-204 and hsa-miR-218 were highly expressed. The results of the present study indicated that HAPLN1, hsa-miR-204 and hsa-miR-218 may be involved in the pathogenesis of ccRCC.
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Affiliation(s)
- Zengzeng Wang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China.,Department of Urology, Tianjin Beichen Hospital, Tianjin 300400, P.R. China
| | - Zhihong Zhang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Changwen Zhang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Yong Xu
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
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Kim JH, Seo SI, Song C, Chung J, Kwak C, Hong SH. Clinicohistological characteristics of renal cell carcinoma in children: A multicentre study. Can Urol Assoc J 2015; 9:E705-8. [PMID: 26664504 DOI: 10.5489/cuaj.2855] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
INTRODUCTION In this retrospective multicentre study, we compared the clinicohistological characteristics of renal cell carcinoma (RCC) between pediatric and adult patients. METHODS Data for patients who underwent radical or partial nephrectomy for RCC between 1988 and 2014 at multiple institutions were collected. Patients were divided into 2 groups according to age at diagnosis: pediatric patients (age ≤18 years) and adult patients (age ≥40 years). The groups were compared for clinical and pathologic variables, and survival analysis was performed. RESULTS The median follow-up period was 64 (range: 30-91) months for pediatric patients versus 44 (range: 19-59) months for adult patients (p = 0.026). Pediatric patients were mostly female (p = 0.003), had symptoms at presentation (p < 0.001), and had a high-stage tumour (p = 0.014) than adult patients. Among the symptomatic patients, gross hematuria was the most common symptom. The median tumour size was not different between groups. Regarding histologic types, pediatric patients had more papillary tumours (p < 0.001), more unclassified tumours (p < 0.001), and fewer clear cell carcinomas (p < 0.001). Five-year cancer-specific survival rates were 85% and 87.4% in pediatric and adult patients, respectively (log rank p = 0.901). Recurrence-free survival was better in adult patients, although this did not reach statistical significance (log rank p = 0.272). This study has several limitations, including its retrospective nature and the relatively small number of pediatric RCC cases. CONCLUSION RCC in children is rare and is characterized by features that differ from those in adult RCC. Prognosis did not differ between groups.
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Affiliation(s)
- Jeong Ho Kim
- Department of Urology, Dongnam Institute of Radiological & Medical Sciences Cancer center, Busan, Korea
| | - Seong Il Seo
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Cheryn Song
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Jinsoo Chung
- Department of Urology, Center for Prostate Cancer, National Cancer Center, Goyang, Korea
| | - Cheol Kwak
- Department of Urology, Seoul National University Hospital, Seoul, Korea
| | - Sung-Hoo Hong
- Department of Urology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Okabe K, Kitamura H, Nishiyama N, Masumori N. A case of chromophobe renal cell carcinoma in a 12-year-old girl. Int Cancer Conf J 2015; 5:36-39. [PMID: 31149420 DOI: 10.1007/s13691-015-0221-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 04/23/2015] [Indexed: 11/28/2022] Open
Abstract
Renal cell carcinoma (RCC) accounts for only 2-6 % of pediatric renal tumors. Chromophobe RCC is very rare in pediatric patients, with only a few cases reported. A 12-year-old girl who had abdominal and left flank pain visited the pediatric clinic of a local hospital. A uniformly enhanced tumor measuring 2.5 cm × 2.3 cm was found on computed tomography. On magnetic resonance imaging, T2-weighted images showed a solid tumor with hyperintensity suggesting intratumoral necrosis. We considered RCC and Wilms' tumor as differential diagnoses, but we could not reach a definitive diagnosis from the radiographic findings. We then performed right partial nephrectomy with regional lymph node dissection. The histopathological diagnosis was pT1aN0 chromophobe RCC. After the surgery, no recurrence has been observed for 15 months.
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Affiliation(s)
- Ko Okabe
- Department of Urology, Sapporo Medical University School of Medicine, South 1 West 16, Chuo-ku, Sapporo, 060-8543 Japan
| | - Hiroshi Kitamura
- Department of Urology, Sapporo Medical University School of Medicine, South 1 West 16, Chuo-ku, Sapporo, 060-8543 Japan
| | - Naotaka Nishiyama
- Department of Urology, Sapporo Medical University School of Medicine, South 1 West 16, Chuo-ku, Sapporo, 060-8543 Japan
| | - Naoya Masumori
- Department of Urology, Sapporo Medical University School of Medicine, South 1 West 16, Chuo-ku, Sapporo, 060-8543 Japan
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Malkan AD, Loh A, Bahrami A, Navid F, Coleman J, Green DM, Davidoff AM, Sandoval JA. An approach to renal masses in pediatrics. Pediatrics 2015; 135:142-58. [PMID: 25452658 DOI: 10.1542/peds.2014-1011] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Renal masses in children may be discovered during routine clinical examination or incidentally during the course of diagnostic or therapeutic procedures for other causes. Renal cancers are rare in the pediatric population and include a spectrum of pathologies that may challenge the clinician in choosing the optimal treatment. Correct identification of the lesion may be difficult, and the appropriate surgical procedure is paramount for lesions suspected to be malignant. The purpose of this article is to provide a comprehensive overview regarding the spectrum of renal tumors in the pediatric population, both benign and malignant, and their surgical management.
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Affiliation(s)
| | | | | | - Fariba Navid
- Oncology, Department of Pediatrics, College of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee
| | | | - Daniel M Green
- Epidemiology and Cancer Control, St. Jude Children's Research Hospital, Memphis, Tennessee; and
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Wang J, Shehata BM, Langness SM, Davis GK, Cheng L, Osunkoya AO. Clear cell, papillary and chromophobe renal cell carcinoma in patients younger than 20 years old: a clinicopathologic study with follow-up. J Pediatr Urol 2012; 8:531-4. [PMID: 22018933 DOI: 10.1016/j.jpurol.2011.09.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Accepted: 09/25/2011] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To perform a clinicopathologic study with follow-up on this rare subset of tumors in the pediatric population. PATIENTS AND METHODS A search was made through the surgical pathology files of two academic institutions for cases of non-translocation associated renal cell carcinoma in patients younger than 20 years old from 1995 to 2011. RESULTS 12 cases were identified from 350 pediatric patients with renal tumors (prevalence = 3.4%). The mean age at diagnosis was 11 years (range 1-18 years). The average tumor size was 7.3 cm (range 3.0-15.0 cm). Pathological staging analysis revealed 7/12 (58%) pT1 tumors, 3/12 (25%) pT2 tumors, and 2/12 (17%) pT3 tumors. Lymph node metastasis was present in 3/12 (25%) patients. The majority of tumors 9/12 (75%) were Fuhrman nuclear grade 2, while 3/12 (25%) cases were Fuhrman nuclear grade 3. Tumor necrosis was identified in 5/12 (42%) tumors, and angiolymphatic invasion was identified in 4/12 (33%) tumors; 1 patient developed lung metastasis. CONCLUSIONS Pathologic parameters typically associated with poor outcome in adults, including metastasis/high tumor stage, high Fuhrman nuclear grade, angiolymphatic invasion, and tumor necrosis, did not lead to death in any of the patients in our series.
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Affiliation(s)
- Jason Wang
- Department of Pathology, Emory University School of Medicine, Atlanta, GA 30322, USA
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Spreafico F, Collini P, Terenziani M, Marchianò A, Piva L. Renal cell carcinoma in children and adolescents. Expert Rev Anticancer Ther 2011; 10:1967-78. [PMID: 21110762 DOI: 10.1586/era.10.188] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Although rare in children and adolescents, renal cell carcinomas (RCCs) raise important questions concerning the best treatment approach and accurate pathologic classification. The differences emerging between childhood and adulthood RCC probably prevent any direct generalized application of therapies to children that are validated for adults. The translocation type of RCC, which forms a distinct category characterized by translocations involving Xp11.2 or, less frequently, 6p21, has recently emerged as the predominant type of RCC in children and adolescents, whereas it is rarely diagnosed in adults. This new finding emphasizes how important it is to prospectively classify RCCs in children with standardized 'modern' diagnoses. The standard cornerstone of therapy for RCC in children and adolescents remains radical nephrectomy. Nephron-sparing surgery is currently recommended in adults for selected small-volume tumors, but additional data are needed before this experience can be extensively transferred to the pediatric population. The therapeutic value of complete retroperitoneal lymph node dissection is still controversial, especially in patients without suspected nodal involvement, be they adults or children. The backbone of systemic therapies for adult RCC has recently been changed by the introduction of drugs designed to target tumor-related angiogenesis and signal transduction. It is worth noting that the largest clinical efficacy trials on targeted molecules have been conducted on clear-cell RCC. While targeted drugs have become the standard of care for adult metastatic RCC, there are currently no published reports on their role in children, and their use should be considered for patients with unresectable metastatic or advanced-stage RCC. On the other hand, the utility of targeted therapies in the adjuvant setting remains to be seen for both adults and children.
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