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Remo A, Negro S, Bao RQ, d’Angelo E, Alaggio R, Crivellari G, Mammi I, Intini R, Bergamo F, Fassan M, Agostini M, Vitellaro M, Pucciarelli S, Urso EDL. Association between Pancreatoblastoma and Familial Adenomatous Polyposis: Review of the Literature with an Additional Case. Genes (Basel) 2023; 15:44. [PMID: 38254934 PMCID: PMC10815143 DOI: 10.3390/genes15010044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 12/24/2023] [Accepted: 12/26/2023] [Indexed: 01/24/2024] Open
Abstract
BACKGROUND Adult pancreatoblastoma (PBL) is a rare pancreatic malignancy, with recent evidence suggesting a possible link to familial adenomatous polyposis (FAP). This study aims to review the latest evidence and explore a possible association between adult PBL and FAP. METHODS Two independent literature reviews were conducted: (1) on PBL and FAP, and (2) on PBL in the adult population not diagnosed with FAP. RESULTS Out of 26 articles on PBL and FAP screened, 5 were selected for systematic review, including 1 additional case. We identified eight FAP-related PBL cases, with a median age of 40 (IQR: 34-50). Of these, seven (87%) occurred in adults. We found 65 cases of adult PBL not FAP-related; thus, 7 out of 65 cases (10.7%) of adult PBL reported in the literature are associated with a clinical diagnosis of FAP or were carriers of APC germline pathogenic variants (GPVs). CONCLUSION Data suggest a non-random association between adult PBL and FAP. Further research is essential to optimise surveillance protocols and develop more effective treatment strategies.
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Affiliation(s)
- Andrea Remo
- Pathology Unit, ULSS9 “Scaligera”, 37122 Verona, Italy;
| | - Silvia Negro
- General Surgery 3, Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, 35121 Padua, Italy; (R.Q.B.); (M.A.); (S.P.); (E.D.L.U.)
| | - Riccardo Quoc Bao
- General Surgery 3, Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, 35121 Padua, Italy; (R.Q.B.); (M.A.); (S.P.); (E.D.L.U.)
| | - Edoardo d’Angelo
- General Surgery 3, Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, 35121 Padua, Italy; (R.Q.B.); (M.A.); (S.P.); (E.D.L.U.)
| | - Rita Alaggio
- Pathology Department, Ospedale Pediatrico Bambino Gesù, IRCCS, 00165 Roma, Italy
| | - Gino Crivellari
- Familial Cancer Clinic and Oncoendocrinology, Veneto Institute of Oncology, IOV-IRCCS, 35121 Padua, Italy; (G.C.); (I.M.)
| | - Isabella Mammi
- Familial Cancer Clinic and Oncoendocrinology, Veneto Institute of Oncology, IOV-IRCCS, 35121 Padua, Italy; (G.C.); (I.M.)
| | - Rossana Intini
- Oncology 1, Veneto Institute of Oncology, IOV-IRCCS, 35121 Padua, Italy; (R.I.); (F.B.)
| | - Francesca Bergamo
- Oncology 1, Veneto Institute of Oncology, IOV-IRCCS, 35121 Padua, Italy; (R.I.); (F.B.)
| | - Matteo Fassan
- Department of Medicine-DIMED, University of Padova, 35121 Padua, Italy;
| | - Marco Agostini
- General Surgery 3, Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, 35121 Padua, Italy; (R.Q.B.); (M.A.); (S.P.); (E.D.L.U.)
| | - Marco Vitellaro
- Unit of Hereditary Digestive Tract Tumors, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy;
| | - Salvatore Pucciarelli
- General Surgery 3, Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, 35121 Padua, Italy; (R.Q.B.); (M.A.); (S.P.); (E.D.L.U.)
| | - Emanuele Damiano Luca Urso
- General Surgery 3, Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, 35121 Padua, Italy; (R.Q.B.); (M.A.); (S.P.); (E.D.L.U.)
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Chen H, Guan Q, Guo H, Miao L, Zhuo Z. The Genetic Changes of Hepatoblastoma. Front Oncol 2021; 11:690641. [PMID: 34367972 PMCID: PMC8335155 DOI: 10.3389/fonc.2021.690641] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 07/05/2021] [Indexed: 12/19/2022] Open
Abstract
Hepatoblastoma is the most common malignant liver cancer in childhood. The etiology of hepatoblastoma remains obscure. Hepatoblastoma is closely related to genetic syndromes, hinting that hepatoblastoma is a genetic predisposition disease. However, no precise exposures or genetic events are reported to hepatoblastoma occurrence. During the past decade, significant advances have been made in the understanding of etiology leading to hepatoblastoma, and several important genetic events that appear to be important for the development and progression of this tumor have been identified. Advances in our understanding of the genetic changes that underlie hepatoblastoma may translate into better patient outcomes. Single nucleotide polymorphisms (SNPs) have been generally applied in the research of etiology's exploration, disease treatment, and prognosis assessment. Here, we reviewed and discussed the molecular epidemiology, especially SNPs progresses in hepatoblastoma, to provide references for future studies and promote the study of hepatoblastoma's etiology.
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Affiliation(s)
- Huitong Chen
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Qian Guan
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Huiqin Guo
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Lei Miao
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Zhenjian Zhuo
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China
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3
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Chen H, Li Y, Li L, Zhu J, Yang Z, Zhang J, Li S, Xin Y, Xia H, He J. YTHDC1 gene polymorphisms and hepatoblastoma susceptibility in Chinese children: A seven-center case-control study. J Gene Med 2020; 22:e3249. [PMID: 32729171 DOI: 10.1002/jgm.3249] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/21/2020] [Accepted: 07/04/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Hepatoblastoma is a commonly occurring embryonal tumors in children. N6-methyladenosine (m6 A) plays a critical role in gene expression, thus contributing to the occurrence and progression of cancer. RNA splicing is regulated by the nuclear m6 A reader YTHDC1, yet the roles of YTHDC1 polymorphisms in hepatoblastoma remain unclear. METHODS We conducted a seven-center case-control study to determine the association between YTHDC1 gene polymorphisms (rs2293596 T>C, rs2293595 T>C and rs3813832 T>C) and hepatoblastoma susceptibility. We recruited 313 hepatoblastoma patients and 1446 healthy controls. RESULTS There was no significant association between all of these polymorphisms and hepatoblastoma susceptibility in single locus or combined analysis. Stratification analysis revealed that rs2293596 TC/CC genotype carriers had a higher risk of developing hepatoblastoma in the subgroup of clinical stages III + IV [adjusted odds ratio (OR) = 1.80, 95% confidence interval (CI) = 1.18-2.76, p = 0.007]. In addition, 3 risk genotype carriers are more likely to develop hepatoblastoma in the subgroup of clinical stages III + IV (adjusted OR = 1.80, 95% CI = 1.18-2.76, p = 0.007). Furthermore, false-positive probability analysis was used to notarize our findings. Haplotype analysis indicated that there was no significant association between inferred haplotypes of YTHDC1 gene based on observed genotypes and hepatoblastoma risk. CONCLUSIONS In conclusion, our findings suggest that the rs2293596 T>C polymorphism may contribute to hepatoblastoma susceptibly and YTHDC1 gene polymorphisms may have a cumulative effect on hepatoblastoma risk.
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Affiliation(s)
- Huitong Chen
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yong Li
- Department of Pediatric Surgery, Hunan Children's Hospital, Changsha, Hunan, China
| | - Li Li
- Kunming Key Laboratory of Children Infection and Immunity, Yunnan Key Laboratory of Children's Major Disease Research, Yunnan Institute of Pediatrics Research, Yunnan Medical Center for Pediatric Diseases, Kunming Children's Hospital, Kunming, Yunnan, China
| | - Jinhong Zhu
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
- Department of Clinical Laboratory, Biobank, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Zhonghua Yang
- Department of Pediatric Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Jiao Zhang
- Department of Pediatric Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Suhong Li
- Department of Pathology, Children Hospital and Women Health Center of Shanxi, Taiyuan, Shannxi, China
| | - Yijuan Xin
- Clinical Laboratory Medicine Center of PLA, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi, China
| | - Huimin Xia
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jing He
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
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Sindhi R, Rohan V, Bukowinski A, Tadros S, de Ville de Goyet J, Rapkin L, Ranganathan S. Liver Transplantation for Pediatric Liver Cancer. Cancers (Basel) 2020; 12:cancers12030720. [PMID: 32204368 PMCID: PMC7140094 DOI: 10.3390/cancers12030720] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/10/2020] [Accepted: 03/12/2020] [Indexed: 02/06/2023] Open
Abstract
Unresectable hepatocellular carcinoma (HCC) was first removed successfully with total hepatectomy and liver transplantation (LT) in a child over five decades ago. Since then, children with unresectable liver cancer have benefitted greatly from LT and a confluence of several equally important endeavors. Regional and trans-continental collaborations have accelerated the development and standardization of chemotherapy regimens, which provide disease control to enable LT, and also serve as a test of unresectability. In the process, tumor histology, imaging protocols, and tumor staging have also matured to better assess response and LT candidacy. Significant trends include a steady increase in the incidence of and use of LT for hepatoblastoma, and a significant improvement in survival after LT for HCC with each decade. Although LT is curative for most unresectable primary liver sarcomas, such as embryonal sarcoma, the malignant rhabdoid tumor appears relapse-prone despite chemotherapy and LT. Pediatric liver tumors remain rare, and diagnostic uncertainty in some settings can potentially delay treatment or lead to the selection of less effective chemotherapy. We review the current knowledge relevant to diagnosis, LT candidacy, and post-transplant outcomes for these tumors, emphasizing recent observations made from large registries or larger series.
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Affiliation(s)
- Rakesh Sindhi
- Hillman Center for Pediatric Transplantation, UPMC-Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA; (A.B.); (S.T.)
- Correspondence: ; Tel.: +1-412-692-7123
| | - Vinayak Rohan
- Medical University of South Carolina, Charleston, SC 29403, USA;
| | - Andrew Bukowinski
- Hillman Center for Pediatric Transplantation, UPMC-Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA; (A.B.); (S.T.)
| | - Sameh Tadros
- Hillman Center for Pediatric Transplantation, UPMC-Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA; (A.B.); (S.T.)
| | - Jean de Ville de Goyet
- Mediterranean Institute for Transplantation and Advanced Specialized Therapies (ISMETT), 90127 Palermo, Italy;
| | - Louis Rapkin
- Department of Hematology/Oncology, UPMC-Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA;
| | - Sarangarajan Ranganathan
- Department of Pathology, Children’s Hospital Medical Center of Cincinnati, Cincinnati, OH 45229, USA;
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Trobaugh-Lotrario AD, López-Terrada D, Li P, Feusner JH. Hepatoblastoma in patients with molecularly proven familial adenomatous polyposis: Clinical characteristics and rationale for surveillance screening. Pediatr Blood Cancer 2018; 65:e27103. [PMID: 29719120 DOI: 10.1002/pbc.27103] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 03/01/2018] [Accepted: 03/26/2018] [Indexed: 12/19/2022]
Abstract
Familial adenomatous polyposis (FAP) due to APC mutation is associated with an increased risk of hepatoblastoma. All cases of hepatoblastoma in patients with FAP reported in the literature were reviewed. One hundred and nine patients were identified. Thirty-five patients (of 49 with data) were diagnosed with hepatoblastoma prior to a later diagnosis of FAP (often in association with advanced colorectal carcinoma), emphasizing a need to identify patients earlier with germline APC mutations for early colorectal carcinoma screening. Hepatoblastoma may present at birth, and screening for hepatoblastoma in infancy in families with FAP prior to APC mutation testing results may be warranted.
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Affiliation(s)
| | - Dolores López-Terrada
- Department of Pathology, Texas Children's Hospital and Baylor College of Medicine, Houston, TX, USA
| | - Peng Li
- Department of Pathology, Texas Children's Hospital and Baylor College of Medicine, Houston, TX, USA
| | - James H Feusner
- Division of Hematology/Oncology, Children's Hospital & Research Center Oakland, Oakland, CA, USA
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Liu B, Cui X, Zheng S, Dong K, Dong R. Aberrant KLK4 gene promoter hypomethylation in pediatric hepatoblastomas. Oncol Lett 2017; 13:1360-1364. [PMID: 28454262 DOI: 10.3892/ol.2017.5558] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 10/24/2016] [Indexed: 12/20/2022] Open
Abstract
DNA methylation has a crucial role in cancer biology and has been recognized as an activator of oncogenes and inactivator of tumor suppressor genes, both of which are mechanisms for tumorigenesis. Kallikrein-related peptidase 4 (KLK4), has been suggested to be an oncogene in various types of cancer. The aim of the present study was to assess the DNA methylation patterns of the KLK4 gene in cancerous samples harvested from patients with hepatoblastoma (HB). KLK4 mRNA expression levels were detected using reverse transcription-quantitative polymerase chain reaction and assessed its DNA methylation patterns using high-throughput mass spectrometry on a matrix-assisted laser desorption/ionization time-of-flight mass array. A total of 10 HB and 10 normal liver tissue samples were obtained from patients with HB. The results of the present study showed that a significantly higher level of KLK4 mRNA expression levels were detected in HB tissues, as compared with the matched controls. Furthermore, the KLK4 gene promoter region was distinctively less methylated in the HB samples compared with the controls and negatively correlated with KLK4 mRNA expression levels. These findings indicate that aberrant methylation of KLK4 may contribute to its upregulated mRNA expression in HB.
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Affiliation(s)
- Baihui Liu
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defects and Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai 201102, P.R. China
| | - Ximao Cui
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defects and Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai 201102, P.R. China
| | - Shan Zheng
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defects and Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai 201102, P.R. China
| | - Kuiran Dong
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defects and Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai 201102, P.R. China
| | - Rui Dong
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defects and Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai 201102, P.R. China
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Bissig-Choisat B, Kettlun-Leyton C, Legras XD, Zorman B, Barzi M, Chen LL, Amin MD, Huang YH, Pautler RG, Hampton OA, Prakash MM, Yang D, Borowiak M, Muzny D, Doddapaneni HV, Hu J, Shi Y, Gaber MW, Hicks MJ, Thompson PA, Lu Y, Mills GB, Finegold M, Goss JA, Parsons DW, Vasudevan SA, Sumazin P, López-Terrada D, Bissig KD. Novel patient-derived xenograft and cell line models for therapeutic testing of pediatric liver cancer. J Hepatol 2016; 65:325-33. [PMID: 27117591 PMCID: PMC5668139 DOI: 10.1016/j.jhep.2016.04.009] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 04/04/2016] [Accepted: 04/08/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Pediatric liver cancer is a rare but serious disease whose incidence is rising, and for which the therapeutic options are limited. Development of more targeted, less toxic therapies is hindered by the lack of an experimental animal model that captures the heterogeneity and metastatic capability of these tumors. METHODS Here we established an orthotopic engraftment technique to model a series of patient-derived tumor xenograft (PDTX) from pediatric liver cancers of all major histologic subtypes: hepatoblastoma, hepatocellular cancer and hepatocellular malignant neoplasm. We utilized standard (immuno) staining methods for histological characterization, RNA sequencing for gene expression profiling and genome sequencing for identification of druggable targets. We also adapted stem cell culturing techniques to derive two new pediatric cancer cell lines from the xenografted mice. RESULTS The patient-derived tumor xenografts recapitulated the histologic, genetic, and biological characteristics-including the metastatic behavior-of the corresponding primary tumors. Furthermore, the gene expression profiles of the two new liver cancer cell lines closely resemble those of the primary tumors. Targeted therapy of PDTX from an aggressive hepatocellular malignant neoplasm with the MEK1 inhibitor trametinib and pan-class I PI3 kinase inhibitor NVP-BKM120 resulted in significant growth inhibition, thus confirming this PDTX model as a valuable tool to study tumor biology and patient-specific therapeutic responses. CONCLUSIONS The novel metastatic xenograft model and the isogenic xenograft-derived cell lines described in this study provide reliable tools for developing mutation- and patient-specific therapies for pediatric liver cancer. LAY SUMMARY Pediatric liver cancer is a rare but serious disease and no experimental animal model currently captures the complexity and metastatic capability of these tumors. We have established a novel animal model using human tumor tissue that recapitulates the genetic and biological characteristics of this cancer. We demonstrate that our patient-derived animal model, as well as two new cell lines, are useful tools for experimental therapies.
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Affiliation(s)
- Beatrice Bissig-Choisat
- Center for Cell and Gene Therapy, Stem Cells and Regenerative Medicine Center, Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Claudia Kettlun-Leyton
- Center for Cell and Gene Therapy, Stem Cells and Regenerative Medicine Center, Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Xavier D. Legras
- Center for Cell and Gene Therapy, Stem Cells and Regenerative Medicine Center, Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Barry Zorman
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - Mercedes Barzi
- Center for Cell and Gene Therapy, Stem Cells and Regenerative Medicine Center, Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Leon L. Chen
- Center for Cell and Gene Therapy, Stem Cells and Regenerative Medicine Center, Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Mansi D. Amin
- Center for Cell and Gene Therapy, Stem Cells and Regenerative Medicine Center, Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Yung-Hsin Huang
- Program in Developmental Biology, Baylor College of Medicine, Houston, TX, USA
| | - Robia G. Pautler
- Small Animal Imaging Facility, Texas Children’s Hospital, Houston, TX, USA,Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX, USA
| | - Oliver A. Hampton
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA,Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Masand M. Prakash
- Department of Pediatric Radiology, Texas Children’s Hospital, Houston, TX, USA
| | - Diane Yang
- Center for Cell and Gene Therapy, Stem Cells and Regenerative Medicine Center, Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA,Graduate Program Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Malgorzata Borowiak
- Center for Cell and Gene Therapy, Stem Cells and Regenerative Medicine Center, Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA,Program in Developmental Biology, Baylor College of Medicine, Houston, TX, USA,Graduate Program Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX, USA,McNair Medical Institute, Houston, USA
| | - Donna Muzny
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | | | - Jianhong Hu
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - Yan Shi
- Michael E. DeBakey Department of Surgery, Division of Abdominal Transplantation and Division of Hepatobiliary Surgery, Baylor College of Medicine, Houston, TX, USA,Department of Surgery, Texas Children’s Hospital, Houston, TX, USA
| | - M. Waleed Gaber
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA,Small Animal Imaging Facility, Texas Children’s Hospital, Houston, TX, USA,Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - M. John Hicks
- Department of Pathology, Texas Children’s Hospital, Houston, TX, USA
| | | | - Yiling Lu
- Department of Systems Biology, MD Anderson Cancer Center, Houston, TX, USA
| | - Gordon B. Mills
- Department of Systems Biology, MD Anderson Cancer Center, Houston, TX, USA
| | - Milton Finegold
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA,Department of Pathology, Texas Children’s Hospital, Houston, TX, USA
| | - John A. Goss
- Michael E. DeBakey Department of Surgery, Division of Abdominal Transplantation and Division of Hepatobiliary Surgery, Baylor College of Medicine, Houston, TX, USA,Department of Surgery, Texas Children’s Hospital, Houston, TX, USA
| | - D. Williams Parsons
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA,Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA,Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA,Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Sanjeev A. Vasudevan
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA,Michael E. DeBakey Department of Surgery, Division of Abdominal Transplantation and Division of Hepatobiliary Surgery, Baylor College of Medicine, Houston, TX, USA,Department of Surgery, Texas Children’s Hospital, Houston, TX, USA
| | - Pavel Sumazin
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA,Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Dolores López-Terrada
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA,Department of Pathology, Texas Children’s Hospital, Houston, TX, USA
| | - Karl-Dimiter Bissig
- Center for Cell and Gene Therapy, Stem Cells and Regenerative Medicine Center, Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA; Program in Developmental Biology, Baylor College of Medicine, Houston, TX, USA; Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA; Graduate Program Department of Molecular & Cellular Biology, Baylor College of Medicine, Houston, TX, USA.
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Cui X, Liu B, Zheng S, Dong K, Dong R. Genome-wide analysis of DNA methylation in hepatoblastoma tissues. Oncol Lett 2016; 12:1529-1534. [PMID: 27446465 DOI: 10.3892/ol.2016.4789] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Accepted: 06/02/2016] [Indexed: 12/17/2022] Open
Abstract
DNA methylation has a crucial role in cancer biology. In the present study, a genome-wide analysis of DNA methylation in hepatoblastoma (HB) tissues was performed to verify differential methylation levels between HB and normal tissues. As alpha-fetoprotein (AFP) has a critical role in HB, AFP methylation levels were also detected using pyrosequencing. Normal and HB liver tissue samples (frozen tissue) were obtained from patients with HB. Genome-wide analysis of DNA methylation in these tissues was performed using an Infinium HumanMethylation450 BeadChip, and the results were confirmed with reverse transcription-quantitative polymerase chain reaction. The Infinium HumanMethylation450 BeadChip demonstrated distinctively less methylation in HB tissues than in non-tumor tissues. In addition, methylation enrichment was observed in positions near the transcription start site of AFP, which exhibited lower methylation levels in HB tissues than in non-tumor liver tissues. Lastly, a significant negative correlation was observed between AFP messenger RNA expression and DNA methylation percentage, using linear Pearson's R correlation coefficients. The present results demonstrate differential methylation levels between HB and normal tissues, and imply that aberrant methylation of AFP in HB could reflect HB development. Expansion of these findings could provide useful insight into HB biology.
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Affiliation(s)
- Ximao Cui
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defects and Key Laboratory of Neonatal Diseases, Ministry of Health, Shanghai 201102, P.R. China
| | - Baihui Liu
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defects and Key Laboratory of Neonatal Diseases, Ministry of Health, Shanghai 201102, P.R. China
| | - Shan Zheng
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defects and Key Laboratory of Neonatal Diseases, Ministry of Health, Shanghai 201102, P.R. China
| | - Kuiran Dong
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defects and Key Laboratory of Neonatal Diseases, Ministry of Health, Shanghai 201102, P.R. China
| | - Rui Dong
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defects and Key Laboratory of Neonatal Diseases, Ministry of Health, Shanghai 201102, P.R. China
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Rodrigues TC, Fidalgo F, da Costa CML, Ferreira EN, da Cunha IW, Carraro DM, Krepischi ACV, Rosenberg C. Upregulated genes at 2q24 gains as candidate oncogenes in hepatoblastomas. Future Oncol 2015; 10:2449-57. [PMID: 25525853 DOI: 10.2217/fon.14.149] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
AIM Cytogenetic data of hepatoblastomas, a rare embryonal tumor of the liver, mostly consist of descriptions of whole-chromosome aneuploidies and large chromosome alterations. High-resolution cytogenetics may provide clues to hepatoblastoma tumorigenesis and indicate markers with clinical significance. PATIENTS & METHODS We used array-CGH (180K) to screen for genomic imbalances in nine hepatoblastomas. Additionally, we investigated the expression pattern of selected genes exhibiting copy number changes. RESULTS Analysis showed mainly whole-chromosome or chromosome-arm aneuploidies, but some focal aberrations were also mapped. Expression analysis of 48 genes mapped at one 10 Mb amplification at 2q24 revealed upregulation of DAPL1, ERMN, GALNT5, SCN1A and SCN3A in the set of tumors compared with differentiated livers. CONCLUSION These genes appear as candidates for hepatoblastoma tumorigenesis.
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Affiliation(s)
- Tatiane Cristina Rodrigues
- Department of Genetics & Evolutionary Biology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
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10
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Neale RE, Stiller CA, Bunch KJ, Milne E, Mineau GP, Murphy MFG. Familial aggregation of childhood and adult cancer in the Utah genealogy. Int J Cancer 2013; 133:2953-60. [PMID: 23733497 DOI: 10.1002/ijc.28300] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 04/29/2013] [Accepted: 05/07/2013] [Indexed: 11/07/2022]
Abstract
A small proportion of childhood cancer is attributable to known hereditary syndromes, but whether there is any familial component to the remainder remains uncertain. We explored familial aggregation of cancer in a population-based case-control study using genealogical record linkage and designed to overcome limitations of previous studies. Subjects were selected from the Utah Population Database. We compared risk of cancer in adult first-degree relatives of children who were diagnosed with cancer with the risk in relatives of children who had not had a cancer diagnosed. We identified 1,894 childhood cancer cases and 3,788 controls; 7,467 relatives of cases and 14,498 relatives of controls were included in the analysis. Relatives of children with cancer had a higher risk of cancer in adulthood than relatives of children without cancer [odds ratio (OR) 1.31, 95% confidence interval (CI) 1.11-1.56]; this was restricted to mothers and siblings and was not evident in fathers. Familial aggregation appeared stronger among relatives of cases diagnosed before 5 years of age (OR 1.48, 95% CI 1.13-1.95) than among relatives of cases who were older when diagnosed (OR 1.22, 95% CI 0.98-1.51). These findings provide evidence of a generalized excess of cancer in the mothers and siblings of children with cancer. The tendency for risk to be higher in the relatives of children who were younger at cancer diagnosis should be investigated in other large data sets. The excesses of thyroid cancer in parents of children with cancer and of any cancer in relatives of children with leukemia merit further investigation.
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Affiliation(s)
- Rachel E Neale
- Cancer and Population Studies Group, Queensland Institute of Medical Research, Royal Brisbane Hospital, QLD, Australia
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11
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Tomlinson GE, Kappler R. Genetics and epigenetics of hepatoblastoma. Pediatr Blood Cancer 2012; 59:785-92. [PMID: 22807084 DOI: 10.1002/pbc.24213] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Accepted: 05/08/2012] [Indexed: 12/23/2022]
Abstract
A number of unique genetic features are observed in hepatoblastoma that have provided insights into the origins of hepatoblastoma. Hallmark cytogenetic changes in hepatoblastoma include the acquisition of additional copies of whole chromosomes and a recurring unbalanced translocation involving 1q. Genetic syndromes are associated with approximately 15% of hepatoblastoma and the understanding and recognition of these syndromes will be important in determining future surveillance studies needed to prevent additional cancers in survivors as well as in some case guide the care of family members. This article will review the genetic changes, both germ line and acquired, that are recurring events in hepatoblastoma, with emphasis on how these genetic changes could work together with other developmental factors and influence cancer predisposition, tumor growth, as well as aid in prognosis. Tumor-specific signatures based on transcriptional or epigenetic alterations will be reviewed that might be used in the future to better diagnose and subtype the disease as well as predict prognosis and response to therapy.
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Affiliation(s)
- Gail E Tomlinson
- Department of Pediatrics, Greehey Children's Cancer Research Institute, University of Texas Health Science Center at San Antonio, San Antonio, Texas 78229, USA.
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12
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13
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Puumala SE, Ross JA, Feusner JH, Tomlinson GE, Malogolowkin MH, Krailo MD, Spector LG. Parental infertility, infertility treatment and hepatoblastoma: a report from the Children's Oncology Group. Hum Reprod 2012; 27:1649-56. [PMID: 22473396 DOI: 10.1093/humrep/des109] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND A recent study suggested a markedly increased risk of hepatoblastoma (HB) among children conceived with treatment for infertility. However, it is not clear whether this finding is confounded by the association between HB and low birthweight (LBW). METHODS Associations between parental infertility and its treatment and HB were examined using data from a case-control study conducted through the Children's Oncology Group (COG). Telephone interviews were completed for 383 mothers of cases diagnosed with HB at US COG institutions between January 2000 and December 2008 and for 387 mothers of controls recruited through state birth registries. Logistic regression was used to examine possible associations. RESULTS After adjusting for birthweight and other potential confounders, no significant association was found for any of the measures of parental infertility or its treatment. In HB cases conceived through assisted reproductive technology (ART), 4 of 16 also had Beckwith-Wiedemann syndrome (BWS) compared with 9 of 365 in HB cases without ART. CONCLUSIONS Little evidence of an association between parental infertility or its treatment and HB was found. The relationship found in a previous study could be due to LBW and BWS which are risk factors for HB and also associated with parental infertility and its treatment.
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Affiliation(s)
- Susan E Puumala
- Department of Pediatrics, University of South Dakota, Sioux Falls, SD 57104, USA
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14
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15
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Bove KE, Soukup S, Ballard ET, Ryckman F. Hepatoblastoma in a Child with Trisomy18: Cytogenetics, Liver Anomalies, and Literature Review. ACTA ACUST UNITED AC 2010. [DOI: 10.1080/15513819609169287] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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Warmann SW, Fuchs J, Bitzer M, Lauer UM. Emerging gene-directed anti-tumor strategies against human hepatoblastoma. Expert Opin Biol Ther 2009; 9:1155-61. [DOI: 10.1517/14712590903136696] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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17
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Abstract
Malignant liver tumors account for slightly >1% of all pediatric malignancies, with roughly 150 new cases of liver tumors diagnosed in the U.S. annually. The embryonal tumor, hepatoblastoma, accounts for two thirds of malignant liver tumors in children. Other liver malignancies in children include hepatocellular carcinoma, sarcomas, germ cell tumors, and rhabdoid tumors. Benign tumors of the liver in children include vascular tumors, hamartomas, and adenomas. There is an apparent increase in the incidence of hepatoblastoma with perinatal exposures and decreased premature infant mortality as postulated causes for this increased risk. The known causes and associations of liver tumors in children as well as the approaches to diagnosis and treatment of children are discussed in this review article.
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Affiliation(s)
- Jason B Litten
- Departments of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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18
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Groen EJ, Roos A, Muntinghe FL, Enting RH, de Vries J, Kleibeuker JH, Witjes MJH, Links TP, van Beek AP. Extra-intestinal manifestations of familial adenomatous polyposis. Ann Surg Oncol 2008; 15:2439-50. [PMID: 18612695 PMCID: PMC2518080 DOI: 10.1245/s10434-008-9981-3] [Citation(s) in RCA: 153] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2007] [Revised: 05/07/2008] [Accepted: 05/08/2008] [Indexed: 12/20/2022]
Abstract
Familial adenomatous polyposis (FAP) is an autosomal dominantly inherited disorder, which results from a germ line mutation in the APC (adenomatous polyposis coli) gene. FAP is characterized by the formation of hundreds to thousands of colorectal adenomatous polyps. Although the development of colorectal cancer stands out as the most prevalent complication, FAP is a multisystem disorder of growth. This means, it is comparable to other diseases such as the MEN syndromes, Von Hippel-Lindau disease and neurofibromatosis. However, the incidence of many of its clinical features is much lower. Therefore, a specialized multidisciplinary approach to optimize health care-common for other disorders-is not usually taken for FAP patients. Thus, clinicians that care for and counsel members of high-risk families should have familiarity with all the extra-intestinal manifestations of this syndrome. FAP-related complications, for which medical attention is essential, are not rare and their estimated lifetime risk presumably exceeds 30%. Affected individuals can develop thyroid and pancreatic cancer, hepatoblastomas, CNS tumors (especially medulloblastomas), and various benign tumors such as adrenal adenomas, osteomas, desmoid tumors and dental abnormalities. Due to improved longevity, as a result of better prevention of colorectal cancer, the risk of these clinical problems will further increase. We present a clinical overview of extra-intestinal manifestations, including management and treatment options for the FAP syndrome. Furthermore, we provide recommendations for surveillance of FAP complications based on available literature.
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Affiliation(s)
- Emma J Groen
- Department of Endocrinology, University Medical Center Groningen, University of Groningen, De Brug 4.069, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands
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19
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Durno CA. Colonic polyps in children and adolescents. CANADIAN JOURNAL OF GASTROENTEROLOGY = JOURNAL CANADIEN DE GASTROENTEROLOGIE 2007; 21:233-9. [PMID: 17431512 PMCID: PMC2657698 DOI: 10.1155/2007/401674] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Colonic polyps most commonly present with rectal bleeding in children. The isolated juvenile polyp is the most frequent kind of polyp identified in children. 'Juvenile' refers to the histological type of polyp and not the age of onset of the polyp. Adolescents and adults with multiple juvenile polyps are at a significant risk of intestinal cancer. The challenge for adult and pediatric gastroenterologists is determining the precise risk of colorectal cancer in patients with juvenile polyposis syndrome. Attenuated familial adenamatous polyposis (AFAP) can occur either by a mutation at the extreme ends of the adenomatous polyposis coli gene or by biallelic mutations in the mutY homologue (MYH) gene. The identification of MYH-associated polyposis as an autosomal recessive condition has important implications for screening and management strategies. Adult and pediatric gastroenterologists need to be aware of the underlying inheritance patterns of polyposis syndromes so that patients and their families can be adequately evaluated and managed. Colonic polyps, including isolated juvenile polyps, juvenile polyposis syndrome, FAP, AFAP and MYH-associated polyposis, are discussed in the present review.
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Affiliation(s)
- C A Durno
- The Hospital for Sick Children, Division of Gastroenterology and Nutrition, University of Toronto, Toronto, Ontario, Canada.
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20
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Affiliation(s)
- Steffen Bülow
- The Danish Polyposis Register, Hvidovre University Hospital, Copenhagen, Denmark.
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21
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Sanders RP, Furman WL. Familial adenomatous polyposis in two brothers with hepatoblastoma: implications for diagnosis and screening. Pediatr Blood Cancer 2006; 47:851-4. [PMID: 16106429 DOI: 10.1002/pbc.20556] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Two brothers with hepatoblastoma were noted to have a family history of early onset colon cancer. Genetic testing of the younger brother revealed a deletion in exon 15 of the adenomatous polyposis coli (APC) gene (2710-2711delAG), consistent with a diagnosis of familial adenomatous polyposis (FAP). We review the clinical and molecular aspects of the relationship between hepatoblastoma and FAP, and the implications for diagnostic testing and cancer screening in affected patients.
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Affiliation(s)
- Robert P Sanders
- Department of Hematology/Oncology, St Jude Children's Research Hospital, Memphis, TN 38105, USA
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22
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Hepatoblastoma: transplantation for unresectable disease. Curr Opin Organ Transplant 2006. [DOI: 10.1097/01.mot.0000244653.90414.7b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Hadjisavvas A, Papasavva T, Loizidou M, Malas S, Potamitis G, Christodoulou C, Pavlides G, Papamichael D, Klonis C, Nasioulas G, Anastasiadou V, Kyriacou K. Novel germline mutations in the APC gene of Cypriot patients with familial and sporadic adenomatous polyposis. Clin Genet 2006; 69:404-9. [PMID: 16650078 DOI: 10.1111/j.1399-0004.2006.00617.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Familial adenomatous polyposis (FAP) is one of the two commonest familial syndromes that predispose to colorectal cancer. FAP is caused by mutations in the adenomatous polyposis coli (APC) tumour suppressor gene that has a high penetrance. The disease is characterized by the occurrence of hundreds to thousands of colorectal polyps, which if left untreated give rise to colorectal cancer. In Cyprus, there are no molecular data available as yet on families with FAP. This work presents the results of APC analysis in our population for the first time. The APC gene was analyzed in 33 DNA samples from 20 individuals belonging to four FAP families and 13 patients with sporadic polyposis. We identified three truncating mutations, four missense mutations and 11 polymorphisms. It is of interest that two of the three truncating mutations, 2307delA and Q1242X, are novel, which supports the existence of a unique genetic pool in the Cypriot population. This ethnic molecular study in addition to highlighting population heterogeneity also contributes to phenotype-genotype associations that are essential for the clinical management of FAP families in Cyprus.
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Affiliation(s)
- A Hadjisavvas
- The Cyprus Institute of Neurology and Genetics, Nicosia, Cyprus
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24
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McLaughlin CC, Baptiste MS, Schymura MJ, Nasca PC, Zdeb MS. Maternal and infant birth characteristics and hepatoblastoma. Am J Epidemiol 2006; 163:818-28. [PMID: 16510543 DOI: 10.1093/aje/kwj104] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Hepatoblastoma is a rare embryonal tumor with unknown etiology. The authors conducted a case-cohort study using public health surveillance data sets to examine perinatal risk factors for hepatoblastoma. Hepatoblastoma cases (n = 58) diagnosed between 1985 and 2001 were identified from the New York State Cancer Registry and were matched to electronic birth records for 1985-2001 from New York State, excluding New York City. Controls (n = 6,056) were selected from the birth cohorts for the same years. Having a birth weight less than 1,000 g was associated with a strongly increased risk of hepatoblastoma (relative risk (RR) = 56.9, 95% confidence interval (CI): 24.0, 130.7). After adjustment for birth weight, a moderately increased risk of hepatoblastoma was found for younger maternal age (<20 years vs. 20-29 years: RR = 2.5, 95% CI: 1.0, 5.5), presumptive use of infertility treatment (RR = 9.2, 95% CI: 2.1, 31.5), maternal smoking (RR = 2.1, 95% CI: 1.0, 4.2), and higher maternal prepregnancy body mass index (body mass index of 25-29 vs. 20-24: RR = 2.9, 95% CI: 1.2, 7.6).
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Affiliation(s)
- Colleen C McLaughlin
- New York State Cancer Registry, New York State Department of Health, Corning Tower Room 536, Empire State Plaza, Albany, NY 12237-0679, USA.
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25
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Affiliation(s)
- Max R Langham
- Division of Pediatric Surgery, University of Tennessee Health Science Center, 777 Washington Avenue, Suite P220, Memphis, TN 38105, USA.
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26
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Abstract
Familial adenomatous polyposis (FAP) is an autosomal-dominant colorectal cancer syndrome, caused by a germline mutation in the adenomatous polyposis coli (APC) gene, on chromosome 5q21. It is characterized by hundreds of adenomatous colorectal polyps, with an almost inevitable progression to colorectal cancer at an average age of 35 to 40 yr. Associated features include upper gastrointestinal tract polyps, congenital hypertrophy of the retinal pigment epithelium, desmoid tumors, and other extracolonic malignancies. Gardner syndrome is more of a historical subdivision of FAP, characterized by osteomas, dental anomalies, epidermal cysts, and soft tissue tumors. Other specified variants include Turcot syndrome (associated with central nervous system malignancies) and hereditary desmoid disease. Several genotype-phenotype correlations have been observed. Attenuated FAP is a phenotypically distinct entity, presenting with fewer than 100 adenomas. Multiple colorectal adenomas can also be caused by mutations in the human MutY homologue (MYH) gene, in an autosomal recessive condition referred to as MYH associated polyposis (MAP). Endoscopic screening of FAP probands and relatives is advocated as early as the ages of 10-12 yr, with the objective of reducing the occurrence of colorectal cancer. Colectomy remains the optimal prophylactic treatment, while the choice of procedure (subtotal vs proctocolectomy) is still controversial. Along with identifying better chemopreventive agents, optimizing screening of extracolonic cancers and applying new radiological and endoscopic technology to the diagnosis and management of extracolonic features are the major challenges for the future.
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Affiliation(s)
- Polymnia Galiatsatos
- Division of Gastroenterology, Department of Medicine, The Sir Mortimer B. Davis Jewish General Hospital, McGill University, Montreal, Quebec, Canada
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27
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Affiliation(s)
- Anders Merg
- Roswell Park Cancer Center, Buffalo, New York, USA
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28
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Ansell P, Mitchell CD, Roman E, Simpson J, Birch JM, Eden TOB. Relationships between perinatal and maternal characteristics and hepatoblastoma: a report from the UKCCS. Eur J Cancer 2005; 41:741-8. [PMID: 15763651 DOI: 10.1016/j.ejca.2004.10.024] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2004] [Revised: 10/18/2004] [Accepted: 10/26/2004] [Indexed: 10/26/2022]
Abstract
Within the context of a national population-based case-control study--the United Kingdom Childhood Cancer Study (UKCCS)--we aimed to explore relationships between perinatal and maternal factors and childhood hepatic tumours, for participants with data available from medical records. 26/28 children with hepatic tumours (22/24 hepatoblastomas, 4/4 hepatocellular carcinomas (HCC)) and 4753 age- and sex-matched controls were included. Polyhydramnios was associated with 0.9% of control pregnancies and 13.6% of case pregnancies (Odds Ratio (OR)=28.64, 95% Confidence Interval (CI)=6.94-118.21, P<0.0001); eclampsia or severe pre-eclampsia complicated the pregnancies of 16.7% of mothers whose children developed hepatoblastoma compared with 0.5% of control pregnancies (OR=52.50, 95% CI=10.75-257.05, P<0.0001). Three children with hepatoblastoma weighed <1500 g at birth, two of whom weighed <1000 g (OR for birthweight <1500 g=69.00, 95% CI=11.98-397.17, P<0.0001). Of children with hepatoblastoma, 50% (11/22) had records of congenital anomalies, as did two of their mothers. Three mothers of children with hepatoblastoma had diagnoses of cancer--two of papillary carcinoma of the thyroid and one of acute lymphoblastic leukaemia (ALL). Paediatricians and others should be alert to the possibility of familial or genetic syndromes in children with hepatoblastomas. Potential links between maternal pre-eclampsia, low birthweight and subsequent malignancy merit further investigation. Hepatoblastoma is an extremely rare childhood tumour, but understanding the mechanism(s) underlying severe pre-eclampsia and eclampsia may also shed light on factors that contribute to the development of hepatoblastoma.
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Affiliation(s)
- P Ansell
- Leukaemia Research Fund Epidemiology and Genetics Unit, Department of Health Sciences, Seebohm Rowntree Building, University of York, York YO10 5DD, UK.
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29
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Abstract
Hereditary cancer syndromes are a group of disorders characterized by a genetic susceptibility to the development of malignant tumors. Multiple cancers in the family or an abnormally early onset for the given cancer may suggest an underlying inherited predisposition. Awareness of their associated dermatologic manifestations can facilitate early detection of risk for neoplasms. This article provides an update on the clinical features, diagnostic criteria, and the use of genetic analysis in the detection of causative mutations of those hereditary cancer syndromes with cutaneous manifestations.
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30
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Thomas D, Pritchard J, Davidson R, McKiernan P, Grundy RG, de Ville de Goyet J. Familial Hepatoblastoma and APC gene mutations: renewed call for molecular research. Eur J Cancer 2003; 39:2200-4. [PMID: 14522379 DOI: 10.1016/s0959-8049(03)00618-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Recent findings have increased our understanding of the molecular mechanisms involved in the pathogenesis of hepatoblastoma and their relationship to the molecular pathology of familial adenomatous polyposis (FAP). Here, we describe hepatoblastoma in siblings who share a gene mutation for FAP inherited from their father. This observation confirms the link between these diseases and has implications for future molecular research. We also raise the question; should other members of 'at-risk' families be screened following a new diagnosis of either hepatoblastoma or FAP?
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Affiliation(s)
- D Thomas
- Liver Unit, Birmingham Children's Hospital, Birmingham, UK
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31
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Lowichik A, Jackson WD, Coffin CM. Gastrointestinal polyposis in childhood: clinicopathologic and genetic features. Pediatr Dev Pathol 2003; 6:371-91. [PMID: 14708731 DOI: 10.1007/s10024-002-0701-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Gastrointestinal polyps and certain extraintestinal lesions in children may herald a hereditary polyposis syndrome, with an increased risk of neoplasia and other health problems for both children and their relatives. The availability of molecular/genetic screening tests has increased early diagnosis of younger members of known polyposis families. This article reviews the gross and microscopic features of polyposis syndromes of childhood and summarizes the molecular/genetic advances in this field. Clinical management is also briefly discussed.
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Affiliation(s)
- Amy Lowichik
- Department of Pathology, University of Utah Health Sciences Center, 30 N. 1900 E, Salt Lake City, UT 84132-2501, USA.
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32
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Abstract
The Wnt signaling pathway has long been known to direct growth and patterning during embryonic development. Recent evidence also implicates this pathway in the development of childhood tumors of the liver, the kidney, the brain, and the pancreas. Here, we review the current evidence on how constitutive activation of the Wnt signaling pathway may occur in hepato-, nephro-, medullo- and pancreatoblastomas. With particular emphasis the mutational activation of CTNNB1, an emerging major oncogene in solid childhood tumors, is discussed.
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Affiliation(s)
- Robert Koesters
- Division of Molecular Pathology, Department of Pathology, University Hospital of Heidelberg, Im Neuenheimer Feld 220/221, 69120 Heidelberg, Germany.
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33
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Golden CB, Feusner JH. Malignant abdominal masses in children: quick guide to evaluation and diagnosis. Pediatr Clin North Am 2002; 49:1369-92, viii. [PMID: 12580370 DOI: 10.1016/s0031-3955(02)00098-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A palpable mass in the abdomen of a child is a serious finding. In this article the authors present their single-institution experience of how these malignancies present and their distribution by age and diagnosis. The most common abdominal malignancies diagnosed in the pediatric population include neuroblastoma, Wilms' tumor, hepatoblastoma, lymphoma, and germ cell tumors. This article provides the busy general pediatrician with some guidelines of how to proceed after discovering a suspiciousmass.
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Affiliation(s)
- Carla B Golden
- Division of Hematology/Oncology, Children's Hospital Oakland, 747 52nd Street, Oakland, CA 94609, USA.
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34
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de Chadarévian JP, Dunn S, Malatack JJ, Ganguly A, Blecker U, Punnett HH. Chromosome rearrangement with no apparent gene mutation in familial adenomatous polyposis and hepatocellular neoplasia. Pediatr Dev Pathol 2002; 5:69-75. [PMID: 11815870 DOI: 10.1007/s10024-001-0121-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2001] [Accepted: 07/23/2001] [Indexed: 12/30/2022]
Abstract
We have identified a constitutional inversion in chromosome 5 associated with familial adenomatous polyposis in three generations of a Mexican family. Two of three siblings developed hepatic neoplasia in infancy. The gene truncation assay failed to demonstrate a truncated protein in the segment harboring the adenomatous polyposis coli (APC) genes. Polymerase chain reaction (PCR) amplification of APC gene coding exons and sequencing of PCR products did not reveal any significant mutation. The data suggest that in this family, the phenotype may be the result of a "position effect."
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Affiliation(s)
- Jean-Pierre de Chadarévian
- Department of Pathology and Laboratory Medicine. (Anatomical Pathology, Cytogenetics), MCP Hahnemann University School of Medicine and St. Christopher's Hospital for Children, Erie Avenue at Front Street, Philadelphia, PA 19134, USA
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35
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Abstract
Advances in molecular genetic research in the past 2 decades have led to an increased understanding of the genetic events in the pathogenesis and progression of human malignancies, including those of childhood. A number of pediatric malignancies have served as models for the molecular genetic approach to patients with cancer. These have highlighted the utility of molecular analysis for a variety of purposes including diagnosis, risk stratification and treatment planning, understanding of syndromes associated with cancer and genetic screening, genetic counseling and prophylactic treatment including surgery. It is likely that there soon will be individualized treatment regimens based on the molecular biologic profile of a patient's tumor. In addition, molecular profiling will lead to new drug development designed to induce differentiation of tumor cells, block dysregulated growth pathways, or reactivate silenced apoptotic pathways. This review discusses the molecular genetic aspects of some of the more common pediatric tumors as well as tumors whose pathogenetic mechanisms are particularly instructive.
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Affiliation(s)
- A M Davidoff
- Department of Surgery, St Jude Children's Research Hospital, Memphis, TN 38105, USA
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36
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Su LK, Abdalla EK, Law CH, Kohlmann W, Rashid A, Vauthey JN. Biallelic inactivation of the APC gene is associated with hepatocellular carcinoma in familial adenomatous polyposis coli. Cancer 2001; 92:332-9. [PMID: 11466687 DOI: 10.1002/1097-0142(20010715)92:2<332::aid-cncr1327>3.0.co;2-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Certain primary hepatic tumors have been associated with familial adenomatous polyposis (FAP), a condition caused by germline mutations of the adenomatous polyposis coli (APC) gene. However, a genetic association between FAP and hepatocellular carcinoma (HCC) has not been shown. This study tested the hypothesis that biallelic inactivation of the APC gene contributed to the development of HCC in a patient with FAP and a known germline mutation of the APC gene at codon 208, but no other risk factors for HCC. METHODS Total RNA and genomic DNA were isolated from the tumor, and in vitro synthesized protein assay and DNA sequencing analysis were used to screen for a somatic mutation in the APC gene. RESULTS A somatic one-base pair deletion at codon 568 was identified in the wild-type allele of the APC gene. CONCLUSIONS To the authors' knowledge, this study provides the first evidence that biallelic inactivation of the APC gene may contribute to the development of HCC in patients with FAP.
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Affiliation(s)
- L K Su
- Department of Molecular and Cellular Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030, USA
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Shibata D, Aaltonen LA. Genetic predisposition and somatic diversification in tumor development and progression. Adv Cancer Res 2001; 80:83-114. [PMID: 11034541 DOI: 10.1016/s0065-230x(01)80013-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Studies on human cancer predisposition syndromes have contributed significantly to our understanding on tumor initiation and progression. Work performed on hereditary colon cancer has been particularly fruitful. Much of the molecular background of the various intestinal polyposis syndromes, such as familial adenomatous polyposis (FAP), juvenile polyposis, and Peutz-Jeghers syndrome, has been revealed, pinpointing several key cancer-associated genes. Studies on hereditary nonpolyposis colorectal cancer (HNPCC) have revealed a novel mechanism of tumorigenesis; genomic instability caused by defective DNA mismatch repair (MMR). Understanding the molecular background of these diseases helps us to understand tumor initiation in the affected individuals. Relatively little is known about the details of tumor progression in hereditary and sporadic neoplasia. Certain additional gene mutations can be associated with advancing stages of the disease, but the pace and tempo of the process have remained obscure. A high mutation rate in MMR-deficient tumors has provided a new approach in the analysis of human tumor dynamics. Microsatellite (MS) sequences are frequently mutated in MMR deficient tumors. The high mutation rate allows the use of microsatellite mutations as a tool for analyzing the past patterns of tumor progression. This approach is similar to the use of MS mutations in studying human evolution and migrations. Such tumor studies have revealed progression pathways that differ from the classic adenoma-cancer sequence. The reasons why and how molecular clocks may reveal something new about a well-studied problem are discussed.
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Affiliation(s)
- D Shibata
- Department of Pathology, Norris Cancer Center, University of Southern California School of Medicine, Los Angeles 90033, USA
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Pritchard J, Brown J, Shafford E, Perilongo G, Brock P, Dicks-Mireaux C, Keeling J, Phillips A, Vos A, Plaschkes J. Cisplatin, doxorubicin, and delayed surgery for childhood hepatoblastoma: a successful approach--results of the first prospective study of the International Society of Pediatric Oncology. J Clin Oncol 2000; 18:3819-28. [PMID: 11078495 DOI: 10.1200/jco.2000.18.22.3819] [Citation(s) in RCA: 178] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE Hepatoblastoma (HB) is a rare malignant liver tumor which occurs almost exclusively in childhood. In the 1970s, survival was approximately 20% to 30%. Since the introduction of cisplatin (PLA) and doxorubicin (DO) into the chemotherapy regimens used to treat these patients, the survival rate has improved dramatically. In most recent studies, primary surgery preceded chemotherapy. In this study by the liver group of the International Society of Pediatric Oncology the aim was to improve survival and reduce operative morbidity and mortality by using preoperative chemotherapy. PATIENTS AND METHODS After biopsy and assessment of pretreatment extent of disease all patients were treated with continuous 24-hour intravenous infusion of PLA 80 mg/m(2) followed by DO 60 mg/m(2) over 48 hours (PLADO). After four courses of this chemotherapy, patients were reassessed. Where possible, the primary tumor was resected and treatment completed with two more courses of chemotherapy. RESULTS One hundred fifty-four patients were registered in the study, and 138 received preoperative chemotherapy. One hundred thirteen (82%) showed a partial response with tumor shrinkage and serial decrease of serum alpha-fetoprotein levels. One hundred fifteen patients had delayed surgery, and 106 (including six with liver transplants) had complete resection of primary tumor. Five-year event-free survival was 66%, and overall survival was 75%. CONCLUSION This study demonstrates that international collaboration on a large scale is feasible. The toxicity of chemotherapy and morbidity of surgery were acceptable and the overall survival gratifyingly high. We now regard PLADO chemotherapy and delayed surgery to be the best available treatment for children with HB. Other treatment programs should be measured against this standard.
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Affiliation(s)
- J Pritchard
- Institute of Child Health, St Bartholomew's Hospital, London, UK
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Abstract
Mechanisms involved in hereditary intestinal cancer are likely to play a role in sporadic tumorigenesis as well. Studies focusing on the molecular biology underlying these syndromes has contributed considerably to our knowledge on molecular bases of malignant transformation. It can be concluded, that there are two aspects to the importance of studies on intestinal cancer predisposition. First, the families suffering from cancer proneness need help which can, to some extent, be provided through molecular genetic studies. Second, the resources appointed to such research have produced scientific advances with outstanding importance to our understanding of common malignant diseases.
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Affiliation(s)
- L A Aaltonen
- Department of Medical Genetics, University of Helsinki, P.O. Box 21, FIN-00014, Finland
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Steenman M, Westerveld A, Mannens M. Genetics of Beckwith-Wiedemann syndrome-associated tumors: common genetic pathways. Genes Chromosomes Cancer 2000; 28:1-13. [PMID: 10738297 DOI: 10.1002/(sici)1098-2264(200005)28:1<1::aid-gcc1>3.0.co;2-#] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
A specific subset of solid childhood tumors-Wilms' tumor, adrenocortical carcinoma, rhabdomyosarcoma, and hepatoblastoma-is characterized by its association with Beckwith-Wiedemann syndrome. Genetic abnormalities found in these tumors affect the same chromosome region (11p15), which has been implicated in the etiology of Beckwith-Wiedemann syndrome. This suggests that the development of these tumors occurs along a common genetic pathway involving chromosome 11. To search for additional common genetic pathways, this article reviews the genetic data published for these tumors. It was found that, up until now, the only genetic abnormalities detected in all four tumors affect chromosome band 11p15 and the TP53 gene. In addition, there are several aberrations that occur in two or three of the neoplasms. It is concluded that, of the four tumors, the genetic relationship is most evident between Wilms' tumor and rhabdomyosarcoma.
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Affiliation(s)
- M Steenman
- Department of Human Genetics, University of Amsterdam, Academic Medical Center, Amsterdam, The Netherlands
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41
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Ma SK, Cheung AN, Choy C, Chan GC, Ha SY, Ching LM, Wan TS, Chan LC. Cytogenetic characterization of childhood hepatoblastoma. CANCER GENETICS AND CYTOGENETICS 2000; 119:32-6. [PMID: 10812168 DOI: 10.1016/s0165-4608(99)00203-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
We describe the cytogenetic abnormalities in two cases of childhood hepatoblastoma. The first case was of fetal histology with squamous metaplasia, and cytogenetic study showed an add(5)(q31). Although an association between hepatoblastoma and familial adenomatous polyposis is recognized, the breakpoint in this case is distal to 5q21 and most probably does not involve the APC gene at that location. The second case was of macrotrabecular histology, and cytogenetic study showed an unbalanced translocation in the form of der(4)t(1;4)(q12;q34) in a hyperdiploid clone. Including our case, der(4)t(1;4)(q12;q34) has been recognized in four cases of hepatoblastoma, and it may be the first recurrent translocation in this tumor. Understanding the molecular mechanism and clinical significance of this translocation awaits analysis of more cases.
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Affiliation(s)
- S K Ma
- Department of Pathology, The University of Hong Kong, Queen Mary Hospital, Hong Kong, China
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42
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Nagata T, Mugishima H, Shichino H, Suzuki T, Chin M, Koshinaga S, Inoue M, Harada K. Karyotypic analyses of hepatoblastoma. Report of two cases and review of the literature suggesting chromosomal loci responsible for the pathogenesis of this disease. CANCER GENETICS AND CYTOGENETICS 1999; 114:42-50. [PMID: 10526534 DOI: 10.1016/s0165-4608(99)00033-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two cases of fetal hepatoblastoma with unique karyotypic changes are described. One was a 17-month-old boy with multiple unbalanced chromosomal translocations, resulting in four types of derivative chromosomes involving chromosomal loci at 1q21, 1q32, 2q23, 6q27, 7p22, and 21p12, partial tetrasomy of 1q, partial trisomy of 2q, and partial monosomy of 21p. The clonal karyotype of this tumor was 46,XY,der(2)t(1;2)(q32;q37), der(6)t(1;6)(q12;q27), der(7)t(2;7)(q23;p22), der(21)t(2;21) (q23;p12). In the other case, a 4-year-old girl, karyotypic analyses revealed trisomy 2 and 8, and the clonal karyotype of this case was 48,XX,+2,+8. Review of these cases together with previous reports suggested the significance of chromosomal changes including numerical abnormalities of 1q, 2(or 2q), 20, and 8 (or 8q), and breakage of 1q and 2q in the development of hepatoblastoma. The results presented herein underscore the significance of numerical abnormalities of chromosomal regions 1q and 2q and of chromosome 8 in the development of hepatoblastoma, in addition to abnormalities of 6q27, 7p22, and 21p12-13 as other chromosomal loci that may be responsible for the pathogenesis of this embryonal type of tumor.
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Affiliation(s)
- T Nagata
- Department of Pediatrics, Nihon University, School of Medicine, Tokyo, Japan
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Abstract
Primary hepatic tumours in children represent an heterogeneous group of neoplasms. Malignant tumours are more common (60% of primary liver tumours), but account for only 1.2-5% of all paediatric neoplasms. There are two main types of malignant tumour, those of epithelial origin, hepatoblastoma (HB) and hepatocellular carcinoma (HCC), and the rarer mesenchymal tumours, e.g. rhabdomyosarcoma and undifferentiated sarcoma, (Weinberg AG, Finegold, MJ. Primary hepatic tumours of childhood. Hum Pathol 1983, 14, 512-532). Vascular tumours e.g. haemangioendotheliomas are the most common of the benign tumours followed by mesenchymal hamartoma and the rare hepatic adenoma and focal nodular hyperplasia. This article will concentrate on the malignant epithelial tumours.
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Affiliation(s)
- G Perilongo
- Division of Paediatric Haematology-Oncology, University of Padova, Italy
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Kim H, Ham EK, Kim YI, Chi JG, Lee HS, Park SH, Jung YM, Myung NK, Lee MJ, Jang JJ. Overexpression of cyclin D1 and cdk4 in tumorigenesis of sporadic hepatoblastomas. Cancer Lett 1998; 131:177-83. [PMID: 9851251 DOI: 10.1016/s0304-3835(98)00151-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Abnormality of the cyclin D1/cdk4/p16INK4a/pRb pathway during tumorigenesis has recently been reported. Hepatoblastoma is a rare malignant liver tumor of childhood, but underlying abnormalities of cell-cycle regulating protein remain to be elucidated. The expression of cyclin D1, cdk4, p16 and retinoblastoma gene product (pRb) was studied by immunohistochemistry in 17 paraffin-embedded tissues consisting of both tumor and corresponding non-neoplastic tissues. Tumor tissues showed overexpression of cyclin D1 (13/17, 76%) and cdk4 (15/17, 88%). Eleven cases showed co-overexpression of both cyclin D1 and cdk4. No abnormal p16 or pRb expression was noted. In the group with a high score (+4) for cyclin D1 expression, a positive correlation with tumor recurrence was noted (P = 0.043). These data suggest that overexpressed cyclin D1 and cdk4 protein might play an important role in the tumorigenesis of hepatoblastoma and that in the group with high cyclin D1 expression, tumor recurrence may be more frequent.
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Affiliation(s)
- H Kim
- Department of Pathology, Seoul National University College of Medicine, South Korea
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Affiliation(s)
- G E Tomlinson
- University of Texas Southwestern Medical Center, Department of Pediatrics, Dallas 75235-9063, USA
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Dong Z, Wang X, Zhao Q, Townsend CM, Evers BM. DNA methylation contributes to expression of the human neurotensin/neuromedin N gene. THE AMERICAN JOURNAL OF PHYSIOLOGY 1998; 274:G535-43. [PMID: 9530155 DOI: 10.1152/ajpgi.1998.274.3.g535] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The gut and liver share a common embryological origin. The gene encoding the gut hormone neurotensin/neuromedin N (NT/N) is expressed in the adult small bowel, and NT/N is transiently expressed in the fetal liver, suppressed in the adult liver, and reexpressed in certain liver cancers. In our present study, we found that the NT/N gene was expressed at high levels in the human hepatoma cell line Hep 3B but was not expressed in Hep G2 cells. To further determine the mechanisms regulating NT/N expression, we performed Southern blotting and gene cloning techniques. Neither alteration nor mutation of the NT/N gene was responsible for this differential NT/N expression pattern. Human NT/N promoter constructs were transfected into either Hep 3B or Hep G2. Both cell lines supported NT/N transcription, indicating that the absence of NT/N expression in Hep G2 cells was due to mechanisms other than the absence of positive transcription factors. The role of DNA methylation was next assessed. Methylation of NT/N promoter constructs in vitro resulted in a 67-fold reduction in promoter activity, whereas treatment with the demethylating agent 5-azacytidine induced NT/N expression in Hep G2 cells, thus suggesting that DNA methylation plays a role in the expression of the gut endocrine gene NT/N. Defining the mechanisms regulating NT/N expression in these hepatic-derived cell lines will provide not only a better understanding of cell-specific and developmental regulation of a gut endocrine gene but also possible insight into liver cell lineage patterns and the derivation of certain hepatocellular cancers.
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Affiliation(s)
- Z Dong
- Department of Surgery, University of Texas Medical Branch, Galveston 77555, USA
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Abstract
The diagnosis and treatment of colorectal cancer remains a formidable health care problem. Colorectal cancer is the second most frequently diagnosed cancer in both men and women in Western countries and accounts for over 55,000 deaths annually in the United States alone. Cancer of the colon and rectum is eminently curable by surgical resection if identified early; however, despite our best efforts, patient survival from this disease has changed little over the past 50 years. With the advent of molecular and genetic techniques, a number of novel discoveries have been made in the last decade which have greatly expanded our understanding of the etiology and cellular mechanisms contributing to the development and subsequent progression of colorectal cancer. This review summarizes the recent molecular advances in the understanding of both familial (HNPCC and FAP) and sporadic colorectal cancers. The numerous scientific advances described in this review offer the promise of the development of novel chemotherapeutic agents, more accurate prognostic indicators and better screening techniques.
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Giardiello FM, Petersen GM, Brensinger JD, Luce MC, Cayouette MC, Bacon J, Booker SV, Hamilton SR. Hepatoblastoma and APC gene mutation in familial adenomatous polyposis. Gut 1996; 39:867-9. [PMID: 9038672 PMCID: PMC1383462 DOI: 10.1136/gut.39.6.867] [Citation(s) in RCA: 133] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Hepatoblastoma is a rare, rapidly progressive, usually fatal childhood malignancy, which if confined to the liver can be cured by radical surgical resection. An association between hepatoblastoma and familial adenomatous polyposis (FAP), which is due to germline mutation of the APC (adenomatous polyposis coli) gene, has been confirmed, but correlation with site of APC mutation has not been studied. AIM To analyse the APC mutational spectrum in FAP families with hepatoblastoma as a possible basis to select kindreds for surveillance. PATIENTS Eight patients with hepatoblastoma in seven FAP kindreds were compared with 97 families with identified APC gene mutation in a large Registry. METHODS APC gene mutation was evaluated by RNase protection assay or in vitro synthesis protein assay. The chi 2 test and correlation were used for data analysis. RESULTS APC gene mutation was identified in all seven FAP kindreds in which an at risk member developed hepatoblastoma. A male predominance was noted (six of eight), similar to literature cases (18 of 25, p < 0.01. Mutations were restricted to codons 141 to 1230, but no significant difference in site of mutation between pedigrees with and without hepatoblastoma was identified. CONCLUSIONS Hepatoblastoma occurs primarily in boys in FAP kindreds and is associated with germline APC mutation in the 5' end of the gene. However, the site of APC mutation cannot be used to predict occurrence of this extracolonic cancer in FAP pedigrees.
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Affiliation(s)
- F M Giardiello
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Hamilton SR, Liu B, Parsons RE, Papadopoulos N, Jen J, Powell SM, Krush AJ, Berk T, Cohen Z, Tetu B. The molecular basis of Turcot's syndrome. N Engl J Med 1995; 332:839-47. [PMID: 7661930 DOI: 10.1056/nejm199503303321302] [Citation(s) in RCA: 810] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND Turcot's syndrome is characterized clinically by the concurrence of a primary brain tumor and multiple colorectal adenomas. We attempted to define the syndrome at the molecular level. METHODS Fourteen families with Turcot's syndrome identified in two registries and the family originally described by Turcot and colleagues were studied. Germ-line mutations in the adenomatous polyposis coli (APC) gene characteristic of familial adenomatous polyposis were evaluated, as well as DNA replication errors and germline mutations in nucleotide mismatch-repair genes characteristic of hereditary nonpolyposis colorectal cancer. In addition, a formal risk analysis for brain tumors in familial adenomatous polyposis was performed with a registry data base. RESULTS Genetic abnormalities were identified in 13 of the 14 registry families. Germ-line APC mutations were detected in 10. The predominant brain tumor in these 10 families was medulloblastoma (11 of 14 patients, or 79 percent), and the relative risk of cerebellar medulloblastoma in patients with familial adenomatous polyposis was 92 times that in the general population (95 percent confidence interval, 29 to 269; P < 0.001). In contrast, the type of brain tumor in the other four families was glioblastoma multiforme. The glioblastomas and colorectal tumors in three of these families and in the original family studied by Turcot had replication errors characteristic of hereditary nonpolyposis colorectal cancer. In addition, germ-line mutations in the mismatch-repair genes hMLH1 or hPMS2 were found in two families. CONCLUSIONS The association between brain tumors and multiple colorectal adenomas can result from two distinct types of germ-line defects: mutation of the APC gene or mutation of a mismatch-repair gene. Molecular diagnosis may contribute to the appropriate care of affected patients.
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Affiliation(s)
- S R Hamilton
- Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, MD 21205-2196
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Hartley AL, Birch JM, Blair V, Harris M, Kelsey AM. Multiple lipomatosis and childhood cancer. A new association? CANCER GENETICS AND CYTOGENETICS 1995; 80:17-9. [PMID: 7697627 DOI: 10.1016/0165-4608(94)00151-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- A L Hartley
- CRC Paediatric and Familial Cancer Research Group, Christie Hospital NHS Trust, Manchester, U.K
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