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Lai THT, Chan PRV, Li KKW. Rejuvenation of retinopathy of prematurity. Hong Kong Med J 2023; 29:284-286. [PMID: 37589083 DOI: 10.12809/hkmj235148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023] Open
Affiliation(s)
- T H T Lai
- Department of Ophthalmology, United Christian Hospital and Tseung Kwan O Hospital, Hong Kong SAR, China
- Department of Ophthalmology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - P R V Chan
- Department of Ophthalmology, University of Illinois College of Medicine, Chicago, United States
| | - K K W Li
- Department of Ophthalmology, United Christian Hospital and Tseung Kwan O Hospital, Hong Kong SAR, China
- Department of Ophthalmology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
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2
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Lau YH, Tang EWH, Lai THT, Li KKW. Acute acquired esotropia during the COVID-19 pandemic: four case reports. Hong Kong Med J 2023; 29:165-167. [PMID: 37005073 DOI: 10.12809/hkmj219856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023] Open
Affiliation(s)
- Y H Lau
- Department of Ophthalmology, United Christian Hospital and Tseung Kwan O Hospital, Hong Kong SAR, China
- Department of Ophthalmology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - E W H Tang
- Department of Ophthalmology, United Christian Hospital and Tseung Kwan O Hospital, Hong Kong SAR, China
- Department of Ophthalmology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - T H T Lai
- Department of Ophthalmology, United Christian Hospital and Tseung Kwan O Hospital, Hong Kong SAR, China
- Department of Ophthalmology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - K K W Li
- Department of Ophthalmology, United Christian Hospital and Tseung Kwan O Hospital, Hong Kong SAR, China
- Department of Ophthalmology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
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3
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Mak ST, Fung KSC, Li KKW. Formulation of a departmental COVID-19 contingency plan for contact tracing and facilities management. Hong Kong Med J 2021; 27:148-149. [PMID: 33824217 DOI: 10.12809/hkmj208670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- S T Mak
- Department of Ophthalmology, United Christian Hospital, Hong Kong.,Department of Ophthalmology, Tseung Kwan O Hospital, Hong Kong.,Quality and Safety Office, Kowloon East Cluster, Hospital Authority, Hong Kong
| | - K S C Fung
- Department of Pathology, United Christian Hospital, Kwun Tong, Hong Kong
| | - K K W Li
- Department of Ophthalmology, United Christian Hospital, Hong Kong.,Department of Ophthalmology, Tseung Kwan O Hospital, Hong Kong
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4
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Wong DHT, Tang EWH, Njo A, Chu CKL, Chau SKY, Chow TL, Lim HS, Fung KSC, Li KKW. Risk stratification protocol to reduce consumption of personal protective equipment for emergency surgeries during COVID-19 pandemic. Hong Kong Med J 2020; 26:252-254. [PMID: 32366724 DOI: 10.12809/hkmj208533] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- D H T Wong
- Department of Ophthalmology, United Christian Hospital, Hong Kong.,Department of Ophthalmology, Tseung Kwan O Hospital, Hong Kong
| | - E W H Tang
- Department of Ophthalmology, United Christian Hospital, Hong Kong.,Department of Ophthalmology, Tseung Kwan O Hospital, Hong Kong
| | - A Njo
- Department of Anaesthesiology, United Christian Hospital, Hong Kong
| | - C K L Chu
- Department of Anaesthesiology, United Christian Hospital, Hong Kong
| | - S K Y Chau
- Department of Pathology, United Christian Hospital, Hong Kong
| | - T L Chow
- Department of Surgery, United Christian Hospital, Hong Kong
| | - H S Lim
- Department of Anaesthesiology, United Christian Hospital, Hong Kong
| | - K S C Fung
- Department of Pathology, United Christian Hospital, Hong Kong
| | - K K W Li
- Department of Ophthalmology, United Christian Hospital, Hong Kong.,Department of Ophthalmology, Tseung Kwan O Hospital, Hong Kong
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5
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Li KKW, Wong L, McGhee SM, Kam YW, Gangwani R, Lian JX, Wong DSH. Diabetic retinopathy screening for specialist care. Hong Kong Med J 2019; 25 Suppl 9:4-7. [PMID: 31889026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023] Open
Affiliation(s)
- K K W Li
- Department of Ophthalmology, United Christian Hospital
| | - L Wong
- Department of Ophthalmology, United Christian Hospital
- Department of Ophthalmology, The University of Hong Kong
| | - S M McGhee
- School of Public Health, The University of Hong Kong
| | - Y W Kam
- Department of Medicine and Geriatrics, United Christian Hospital
| | - R Gangwani
- Department of Ophthalmology, The University of Hong Kong
| | - J X Lian
- Department of Ophthalmology, The University of Hong Kong
- School of Optometry, The Hong Kong Polytechnic University
| | - D S H Wong
- Department of Ophthalmology, The University of Hong Kong
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6
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Chung CY, Wong ES, Liu CCH, Wong MOM, Li KKW. Clinical features and prognostic factors of Klebsiella endophthalmitis-10-year experience in an endemic region. Eye (Lond) 2017. [PMID: 28622312 DOI: 10.1038/eye.2017.92] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
AimsTo identify the clinical features and prognostic factors of endogenous endophthalmitis caused by Klebsiella pneumoniae.MethodsThis is a retrospective case series of all patients with Klebsiella endophthalmitis managed from January 2006 to December 2015 by Kowloon East Ophthalmic Service. Statistical analysis involved hypothesis testing on the SPSS 18.0 software (SPSS). A significance level of P<0.05 was taken.ResultsIn the 10-year period, K. pneumoniae accounted for 19 out of 39 cases of endogenous endophthalmitis (48.7%). The mean age of patients was 67.9 years. Bilateral involvement occurred in five patients (26.3%). More than half of the patients (10/19, 52.6%) had underlying diabetes mellitus. Most patients had concurrent liver abscess (18/19, 94.74%). Ten patients (52.6%) had disseminated intravascular coagulopathy. Eight patients (42.1%) were in shock. The overall mortality was 21.1% (4/19). Septic shock was associated with a significantly higher mortality (50.0 vs 0%, P=0.018). Among the 15 survivors, nine patients (60.0%) required evisceration and three patients (20.0%) had no light perception in an involved eye. Eyes with diffuse posterior involvement were less likely to have a final visual acuity of logMAR 0.30 or better than those with focal posterior involvement (4.76 vs 100% 4.76%, P=0.002). Patients with hypopyon were more likely to require evisceration (85.71 vs 25.00%, P=0.02).ConclusionsKlebsiella endophthalmitis is associated with a high incidence of diabetes mellitus and liver abscess. Prognosis remains poor. Universal ocular screening and systemic control in patients with Klebsiella sepsis are recommended.
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Affiliation(s)
- C Y Chung
- Department of Ophthalmology, United Christian Hospital, Kowloon, Hong Kong.,Department of Ophthalmology, Tseung Kwan O Hospital, New Territories, Hong Kong.,Department of Ophthalmology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - E S Wong
- Hong Kong Eye Hospital, Kowloon, Hong Kong
| | - C C H Liu
- Department of Ophthalmology, United Christian Hospital, Kowloon, Hong Kong.,Department of Ophthalmology, Tseung Kwan O Hospital, New Territories, Hong Kong.,Department of Ophthalmology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - M O M Wong
- Hong Kong Eye Hospital, Kowloon, Hong Kong
| | - K K W Li
- Department of Ophthalmology, United Christian Hospital, Kowloon, Hong Kong.,Department of Ophthalmology, Tseung Kwan O Hospital, New Territories, Hong Kong.,Department of Ophthalmology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong
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7
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Cavalli FMG, Remke M, Rampasek L, Peacock J, Shih DJH, Luu B, Garzia L, Torchia J, Nor C, Morrissy AS, Agnihotri S, Thompson YY, Kuzan-Fischer CM, Farooq H, Isaev K, Daniels C, Cho BK, Kim SK, Wang KC, Lee JY, Grajkowska WA, Perek-Polnik M, Vasiljevic A, Faure-Conter C, Jouvet A, Giannini C, Nageswara Rao AA, Li KKW, Ng HK, Eberhart CG, Pollack IF, Hamilton RL, Gillespie GY, Olson JM, Leary S, Weiss WA, Lach B, Chambless LB, Thompson RC, Cooper MK, Vibhakar R, Hauser P, van Veelen MLC, Kros JM, French PJ, Ra YS, Kumabe T, López-Aguilar E, Zitterbart K, Sterba J, Finocchiaro G, Massimino M, Van Meir EG, Osuka S, Shofuda T, Klekner A, Zollo M, Leonard JR, Rubin JB, Jabado N, Albrecht S, Mora J, Van Meter TE, Jung S, Moore AS, Hallahan AR, Chan JA, Tirapelli DPC, Carlotti CG, Fouladi M, Pimentel J, Faria CC, Saad AG, Massimi L, Liau LM, Wheeler H, Nakamura H, Elbabaa SK, Perezpeña-Diazconti M, Chico Ponce de León F, Robinson S, Zapotocky M, Lassaletta A, Huang A, Hawkins CE, Tabori U, Bouffet E, Bartels U, Dirks PB, Rutka JT, Bader GD, Reimand J, Goldenberg A, Ramaswamy V, Taylor MD. Intertumoral Heterogeneity within Medulloblastoma Subgroups. Cancer Cell 2017; 31:737-754.e6. [PMID: 28609654 PMCID: PMC6163053 DOI: 10.1016/j.ccell.2017.05.005] [Citation(s) in RCA: 720] [Impact Index Per Article: 102.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 03/24/2017] [Accepted: 05/08/2017] [Indexed: 02/07/2023]
Abstract
While molecular subgrouping has revolutionized medulloblastoma classification, the extent of heterogeneity within subgroups is unknown. Similarity network fusion (SNF) applied to genome-wide DNA methylation and gene expression data across 763 primary samples identifies very homogeneous clusters of patients, supporting the presence of medulloblastoma subtypes. After integration of somatic copy-number alterations, and clinical features specific to each cluster, we identify 12 different subtypes of medulloblastoma. Integrative analysis using SNF further delineates group 3 from group 4 medulloblastoma, which is not as readily apparent through analyses of individual data types. Two clear subtypes of infants with Sonic Hedgehog medulloblastoma with disparate outcomes and biology are identified. Medulloblastoma subtypes identified through integrative clustering have important implications for stratification of future clinical trials.
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Affiliation(s)
- Florence M G Cavalli
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Marc Remke
- Department of Pediatric Oncology, Hematology, and Clinical Immunology, Medical Faculty, University Hospital Düsseldorf, Düsseldorf 40225, Germany; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A1, Canada; Department of Pediatric Neuro-Oncogenomics, German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Düsseldorf 40225, Germany
| | - Ladislav Rampasek
- Department of Computer Science, University of Toronto, Toronto, ON M5S 2E4, Canada; Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - John Peacock
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - David J H Shih
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Betty Luu
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Livia Garzia
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Jonathon Torchia
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Carolina Nor
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - A Sorana Morrissy
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Sameer Agnihotri
- UPCI Brain Tumor Program, University of Pittsburgh, Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Yuan Yao Thompson
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Claudia M Kuzan-Fischer
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Hamza Farooq
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Keren Isaev
- Informatics Program, Ontario Institute for Cancer Research, Toronto, ON M5G 0A3, Canada; Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada
| | - Craig Daniels
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Byung-Kyu Cho
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul 30322, South Korea
| | - Seung-Ki Kim
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul 30322, South Korea
| | - Kyu-Chang Wang
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul 30322, South Korea
| | - Ji Yeoun Lee
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul 30322, South Korea
| | - Wieslawa A Grajkowska
- Department of Pathology, The Children's Memorial Health Institute, University of Warsaw, Warsaw 04-730, Poland
| | - Marta Perek-Polnik
- Department of Oncology, The Children's Memorial Health Institute, University of Warsaw, Warsaw 04-730, Poland
| | - Alexandre Vasiljevic
- Centre de Pathologie et Neuropathologie Est, Centre de Biologie et Pathologie Est, Groupement Hospitalier Est, Hospices Civils de Lyon, Bron 69677, France; ONCOFLAM - Neuro-Oncologie et Neuro-Inflammation Centre de Recherche en Neurosciences de Lyon, Lyon 69008, France
| | | | - Anne Jouvet
- Centre de Pathologie EST, Groupement Hospitalier EST, Université de Lyon, Bron 69677, France
| | - Caterina Giannini
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA
| | | | - Kay Ka Wai Li
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Ho-Keung Ng
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Charles G Eberhart
- Departments of Pathology, Ophthalmology and Oncology, John Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Ian F Pollack
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Ronald L Hamilton
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - G Yancey Gillespie
- Department of Surgery, Division of Neurosurgery, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - James M Olson
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109-1024, USA; Division of Pediatric Hematology/Oncology, University of Washington School of Medicine, Seattle Children's Hospital, Seattle, WA 98145-5005, USA
| | - Sarah Leary
- Division of Pediatric Hematology/Oncology, University of Washington School of Medicine, Seattle Children's Hospital, Seattle, WA 98145-5005, USA
| | - William A Weiss
- Departments of Pediatrics, Neurological Surgery and Neurology, University of California San Francisco, San Francisco, CA 94143-0112, USA
| | - Boleslaw Lach
- Division of Anatomical Pathology, Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON L8S 4K1, Canada; Department of Pathology and Laboratory Medicine, Hamilton General Hospital, Hamilton, ON L8L 2X2, Canada
| | - Lola B Chambless
- Department of Neurological Surgery, Vanderbilt Medical Center, Nashville, TN 37232, USA
| | - Reid C Thompson
- Department of Neurological Surgery, Vanderbilt Medical Center, Nashville, TN 37232, USA
| | - Michael K Cooper
- Department of Neurology, Vanderbilt Medical Center, Nashville, TN 37232, USA
| | - Rajeev Vibhakar
- Department of Pediatrics, University of Colorado Denver, Aurora, CO 80045, USA
| | - Peter Hauser
- 2nd Department of Pediatrics, Semmelweis University, Budapest 1094, Hungary
| | - Marie-Lise C van Veelen
- Department of Neurosurgery, Erasmus University Medical Center, Rotterdam 3015 CE, the Netherlands
| | - Johan M Kros
- Department of Pathology, Erasmus University Medical Center, Rotterdam 3015 CN, the Netherlands
| | - Pim J French
- Department of Neurology, Erasmus University Medical Center, Rotterdam 3015 CE, the Netherlands
| | - Young Shin Ra
- Department of Neurosurgery, University of Ulsan, Asan Medical Center, Seoul 05505, South Korea
| | - Toshihiro Kumabe
- Department of Neurosurgery, Kitasato University School of Medicine, Sagamihara, Kanagawa 252-0374, Japan
| | - Enrique López-Aguilar
- Division of Pediatric Hematology/Oncology, Hospital Pediatría Centro Médico Nacional Century XXI, Mexico City 06720, Mexico
| | - Karel Zitterbart
- Department of Pediatric Oncology, School of Medicine, Masaryk University, Brno 625 00, Czech Republic
| | - Jaroslav Sterba
- Department of Pediatric Oncology, School of Medicine, Masaryk University, Brno 625 00, Czech Republic
| | - Gaetano Finocchiaro
- Department of Neuro-Oncology, Istituto Neurologico Besta, Milan 20133, Italy
| | - Maura Massimino
- Fondazione IRCCS Istituto Nazionale Tumori, Milan 20133, Italy
| | - Erwin G Van Meir
- Department of Hematology & Medical Oncology, School of Medicine and Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA
| | - Satoru Osuka
- Department of Hematology & Medical Oncology, School of Medicine and Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA
| | - Tomoko Shofuda
- Division of Stem Cell Research, Institute for Clinical Research, Osaka National Hospital, Osaka 540-0006, Japan
| | - Almos Klekner
- Department of Neurosurgery, University of Debrecen, Medical and Health Science Centre, Debrecen 4032, Hungary
| | - Massimo Zollo
- Dipartimento di Biochimica e Biotecnologie Mediche, University of Naples, Naples 80145, Italy
| | - Jeffrey R Leonard
- Division of Pediatric Neurosurgery, Department of Neurosurgery, Washington University School of Medicine and St. Louis Children's Hospital, St. Louis, MO 63110, USA
| | - Joshua B Rubin
- Departments of Pediatrics, Anatomy and Neurobiology, Washington University School of Medicine and St. Louis Children's Hospital, St. Louis, MO 63110, USA
| | - Nada Jabado
- Division of Hematology/Oncology, Department of Pediatrics, McGill University, Montreal, QC H4A 3J1, Canada
| | - Steffen Albrecht
- Department of Pathology, McGill University, Montreal, QC H4A 3J1, Canada; Department of Pathology, Montreal Children's Hospital, Montreal, QC H4A 3J1, Canada
| | - Jaume Mora
- Developmental Tumor Biology Laboratory, Hospital Sant Joan de Déu, Esplugues de Llobregat, Barcelona 08950, Spain
| | - Timothy E Van Meter
- Department of Pediatrics, Virginia Commonwealth University, School of Medicine, Richmond, VA 23298-0646, USA
| | - Shin Jung
- Department of Neurosurgery, Chonnam National University Research Institute of Medical Sciences, Chonnam National University Hwasun Hospital and Medical School, Hwasun-gun 519-763, Chonnam South Korea
| | - Andrew S Moore
- Lady Cilento Children's Hospital, The University of Queensland, Brisbane QLD 4102, Australia; Oncology Service, Children's Health Queensland Hospital and Health Service, South Brisbane, QLD 4029, Australia
| | - Andrew R Hallahan
- Lady Cilento Children's Hospital, The University of Queensland, Brisbane QLD 4102, Australia; Oncology Service, Children's Health Queensland Hospital and Health Service, South Brisbane, QLD 4029, Australia
| | - Jennifer A Chan
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB T2N 2T9, Canada
| | - Daniela P C Tirapelli
- Department of Surgery and Anatomy, Faculty of Medicine of Ribeirão Preto, University of São Paulo, São Paulo 14049-900, Brazil
| | - Carlos G Carlotti
- Department of Surgery and Anatomy, Faculty of Medicine of Ribeirão Preto, University of São Paulo, São Paulo 14049-900, Brazil
| | - Maryam Fouladi
- Division of Hematology/Oncology, University of Cincinnati, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - José Pimentel
- Divison of Pathology, Centro Hospitalar Lisboa Norte, Hospital de Santa Maria, Lisbon 1649-035, Portugal
| | - Claudia C Faria
- Division of Neurosurgery, Centro Hospitalar Lisboa Norte, Hospital de Santa Maria, Lisbon 1649-035, Portugal
| | - Ali G Saad
- Department of Pathology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Luca Massimi
- Department of Pediatric Neurosurgery, Catholic University Medical School, Rome 00198, Italy
| | - Linda M Liau
- Department of Neurosurgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Helen Wheeler
- Kolling Institute of Medical Research, The University of Sydney, Sydney, NSW 2065, Australia
| | - Hideo Nakamura
- Department of Neurosurgery, Kumamoto University Graduate School of Medical Science, Kumamoto 860-8555, Japan
| | - Samer K Elbabaa
- Division of Pediatric Neurosurgery, Department of Neurosurgery, Saint Louis University School of Medicine, St. Louis, MO, USA
| | | | | | - Shenandoah Robinson
- Division of Pediatric Neurosurgery, Rainbow & Babies Children's Hospital, Case Western Reserve, Cleveland, OH 44106, USA
| | - Michal Zapotocky
- Division of Haematology / Oncology, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Alvaro Lassaletta
- Division of Haematology / Oncology, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Annie Huang
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Division of Haematology / Oncology, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Cynthia E Hawkins
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Division of Pathology, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Uri Tabori
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Division of Haematology / Oncology, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Eric Bouffet
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Division of Haematology / Oncology, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Ute Bartels
- Division of Haematology / Oncology, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Peter B Dirks
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Division of Neurosurgery, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - James T Rutka
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A1, Canada; Division of Neurosurgery, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Gary D Bader
- The Donnelly Centre, University of Toronto, Toronto, ON M5S 3E1, Canada; Banting and Best Department of Medical Research, University of Toronto, Toronto, ON M5G 1L6, Canada; McLaughlin Centre, University of Toronto, Toronto, ON M5G 0A4, Canada; Department of Molecular Genetics, University of Toronto, Toronto, ON M5S 1A8, Canada; Samuel Lunenfeld Research Institute at Mount Sinai Hospital, University of Toronto, Toronto, ON M5G 1X5, Canada
| | - Jüri Reimand
- Informatics Program, Ontario Institute for Cancer Research, Toronto, ON M5G 0A3, Canada; Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada
| | - Anna Goldenberg
- Department of Computer Science, University of Toronto, Toronto, ON M5S 2E4, Canada; Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada.
| | - Vijay Ramaswamy
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Division of Haematology / Oncology, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Program in Neuroscience and Mental Health and Division of Neurology, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada.
| | - Michael D Taylor
- The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A1, Canada; Division of Neurosurgery, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada.
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Chung CY, Li SH, Li KKW. Focal choroidal excavation-morphological features and clinical correlation. Eye (Lond) 2017; 31:1373-1379. [PMID: 28452991 DOI: 10.1038/eye.2017.71] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 03/26/2017] [Indexed: 11/09/2022] Open
Abstract
PurposeTo describe and correlate the morphological and clinical features of focal choroidal excavation (FCE).MethodsThis is a consecutive case series from the review of the 4436 optical coherence tomography scans performed by Kowloon East Cluster Ophthalmic Service from 1 August 2014-31 January 2016. Statistical analysis was performed on SPSS 18.0 (SPSS, Chicago, IL, USA). A significance level of P<0.05 was taken.ResultsAll 16 patients with FCE had unilateral involvement. The mean age of diagnosis was 52.56±14.00. The mean greatest linear dimension (GLD) of FCE was 636.25±265.11 μm. The mean choroidal thickness was 183.63±52.39 μm. Fourteen FCEs (87.5%) were conforming and two were non-conforming (12.5%). In the eyes with FCE, concurrent macular pathology was present in four cases (25.0%). Tractional pathologies of macular pucker and macular scar corresponded to the two non-conforming FCEs in the series. Polypoidal choroidal vasculopathy (PCV) and lacquer crack had a close topographic relationship with the FCE. The mean GLD was significantly larger in eyes with concurrent macular pathology than those without (878.00 vs 555.67 μm, P=0.029). In the fellow eyes, concurrent macular pathology was present in 5 cases (31.3%): PCV in 3 cases and chronic central serous chorioretinopathy in 2 cases.ConclusionAs a significant proportion of FCE is associated with concurrent macular pathology in the involved or fellow eye, angiography for both eyes is recommended even for asymptomatic cases. The GLD of FCE may have clinical value in risk stratification.
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Affiliation(s)
- C Y Chung
- Department of Ophthalmology, United Christian Hospital, Kowloon, Hong Kong.,Department of Ophthalmology, Tseung Kwan O Hospital, Kowloon, Hong Kong.,Department of Ophthalmology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | - S H Li
- Department of Ophthalmology, United Christian Hospital, Kowloon, Hong Kong.,Department of Ophthalmology, Tseung Kwan O Hospital, Kowloon, Hong Kong.,Department of Ophthalmology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | - K K W Li
- Department of Ophthalmology, United Christian Hospital, Kowloon, Hong Kong.,Department of Ophthalmology, Tseung Kwan O Hospital, Kowloon, Hong Kong.,Department of Ophthalmology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
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Thompson EM, Hielscher T, Bouffet E, Remke M, Luu B, Gururangan S, McLendon RE, Bigner DD, Lipp ES, Perreault S, Cho YJ, Grant G, Kim SK, Lee JY, Rao AAN, Giannini C, Li KKW, Ng HK, Yao Y, Kumabe T, Tominaga T, Grajkowska WA, Perek-Polnik M, Low DCY, Seow WT, Chang KTE, Mora J, Pollack IF, Hamilton RL, Leary S, Moore AS, Ingram WJ, Hallahan AR, Jouvet A, Fèvre-Montange M, Vasiljevic A, Faure-Conter C, Shofuda T, Kagawa N, Hashimoto N, Jabado N, Weil AG, Gayden T, Wataya T, Shalaby T, Grotzer M, Zitterbart K, Sterba J, Kren L, Hortobágyi T, Klekner A, László B, Pócza T, Hauser P, Schüller U, Jung S, Jang WY, French PJ, Kros JM, van Veelen MLC, Massimi L, Leonard JR, Rubin JB, Vibhakar R, Chambless LB, Cooper MK, Thompson RC, Faria CC, Carvalho A, Nunes S, Pimentel J, Fan X, Muraszko KM, López-Aguilar E, Lyden D, Garzia L, Shih DJH, Kijima N, Schneider C, Adamski J, Northcott PA, Kool M, Jones DTW, Chan JA, Nikolic A, Garre ML, Van Meir EG, Osuka S, Olson JJ, Jahangiri A, Castro BA, Gupta N, Weiss WA, Moxon-Emre I, Mabbott DJ, Lassaletta A, Hawkins CE, Tabori U, Drake J, Kulkarni A, Dirks P, Rutka JT, Korshunov A, Pfister SM, Packer RJ, Ramaswamy V, Taylor MD. Prognostic value of medulloblastoma extent of resection after accounting for molecular subgroup: a retrospective integrated clinical and molecular analysis. Lancet Oncol 2016; 17:484-495. [PMID: 26976201 PMCID: PMC4907853 DOI: 10.1016/s1470-2045(15)00581-1] [Citation(s) in RCA: 223] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 12/01/2015] [Accepted: 12/03/2015] [Indexed: 12/12/2022]
Abstract
Background Incomplete surgical resection of medulloblastoma is controversially considered a marker of high-risk disease; driving aggressive surgical resections, “second-look” surgeries, and/or intensified chemoradiotherapy. All prior publications evaluating the clinical importance of extent of resection (EOR) failed to account for molecular subgroup. We analysed the prognostic value of EOR across 787 medulloblastoma samples in a subgroup-specific manner. Methods We retrospectively identified patients from Medulloblastoma Advanced Genomics International Consortium (MAGIC) centres with a histological diagnosis of medulloblastoma and complete extent of resection and survival data. Specimens were collected from 35 international institutions. Medulloblastoma subgroup affiliation was determined using nanoString gene expression profiling on frozen or formalin-fixed paraffin-embedded tissues. Extent of resection (EOR) based on post-operative imaging was classified as gross total (GTR), near total (NTR, <1·5cm2), or subtotal (STR, ≥ 1·5cm2). Overall survival (OS) and progression-free survival (PFS) multivariable analyses including subgroup, age, metastatic status, geographical location of therapy (North America/Australia vs world), and adjuvant therapy regimen were performed. The primary endpoint was the impact of surgical EOR by molecular subgroup and other clinical variables on OS and PFS. Findings 787 medulloblastoma patients (86 WNT, 242 SHH, 163 Group 3, and 296 Group 4) were included in a multivariable Cox model of PFS and OS. The marked benefit of EOR in the overall cohort was greatly attenuated after including molecular subgroup in the multivariable analysis. There was an observed PFS benefit of GTR over STR (hazard ration [HR] 1·45, 95% CI; 1·07–1·96, p=0·02) but there was no observed PFS or OS benefit of GTR over NTR (HR 1·05, 0·71–1·53, p=0·82 and HR 1·14, 0·75–1·72, p=0.55). There was no statistically significant survival benefit to greater EOR for patients with WNT, SHH, or Group 3 patients (HR 1·03, 0·67–1·58, p=0·9 for STR vs. GTR). There was a PFS benefit for GTR over STR in patients with Group 4 medulloblastoma (HR1·97, 1·22–3·17, p=0·01), particularly those with metastatic disease (HR 2·22, 1–4·93, p=0·05). A nomogram based on this multivariable cox proportional hazards model shows the comparably smaller impact of EOR on relative risk for PFS and OS than subgroup affiliation, metastatic status, radiation dose, and adjuvant chemotherapy. Interpretation The prognostic benefit of EOR for patients with medulloblastoma is attenuated after accounting for molecular subgroup affiliation. Although maximal safe surgical resection should remain the standard of care, surgical removal of small residual portions of medulloblastoma is not recommended when the likelihood of neurological morbidity is high as there is no definitive benefit to GTR over NTR. Our results suggest a re-evaluation of the long-term implications of intensified craniospinal irradiation (36 Gy) in children with small residual portions of medulloblastoma. Funding Funding Canadian Cancer Society Research Institute, Terry Fox Research Institute, Canadian Institutes of Health Research, National Institutes of Health, Pediatric Brain Tumor Foundation, Garron Family Chair in Childhood Cancer Research.
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Affiliation(s)
- Eric M Thompson
- Division of Neurosurgery, The Hospital for Sick Children, Toronto, ON, Canada; Department of Neurosurgery, Duke University, Durham, NC, USA
| | - Thomas Hielscher
- Division of Biostatistics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Eric Bouffet
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada; The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada
| | - Marc Remke
- Department of Pediatric Oncology, Hematology, and Clinical Immunology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Betty Luu
- Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON, Canada
| | | | | | - Darell D Bigner
- Department of Pathology, Duke University, Durham, NC, USA; The Preston Robert Tisch Brain Tumor Center, Duke University, Durham, NC, USA
| | - Eric S Lipp
- Department of Pathology, Duke University, Durham, NC, USA
| | | | - Yoon-Jae Cho
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA; Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Gerald Grant
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, USA; Department of Neurosurgery, Lucille Packard Children's Hospital, Stanford, CA, USA
| | - Seung-Ki Kim
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul, South Korea
| | - Ji Yeoun Lee
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul, South Korea
| | | | - Caterina Giannini
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Kay Ka Wai Li
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong Special Administrative Region, China
| | - Ho-Keung Ng
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong Special Administrative Region, China
| | - Yu Yao
- Department of Neurosurgery, Hua Shan Hospital, Fudan University, Shanghai, China
| | - Toshihiro Kumabe
- Department of Neurosurgery, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Teiji Tominaga
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | | | - Marta Perek-Polnik
- Department of Oncology, The Children's Memorial Health Institute, Warsaw, Poland
| | - David C Y Low
- Neurosurgical Service, KK Women's and Children's Hospital, Singapore, Singapore
| | - Wan Tew Seow
- Neurosurgical Service, KK Women's and Children's Hospital, Singapore, Singapore
| | - Kenneth T E Chang
- Department of Pathology & Laboratory Medicine, KK Women's and Children's Hospital, Singapore, Singapore
| | - Jaume Mora
- Developmental Tumor Biology Laboratory, Hospital Sant Joan de Déu, Esplugues de Llobregat, Barcelona, Spain
| | - Ian F Pollack
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Ronald L Hamilton
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Sarah Leary
- Cancer and Blood Disorders Center, Seattle Children's Hospital, Seattle, WA, USA
| | - Andrew S Moore
- UQ Child Health Research Centre, University of Queensland, Brisbane, QLD, Australia; Oncology Service, Lady Cilento Children's Hospital, Children's Health Queensland, Brisbane, QLD, Australia
| | - Wendy J Ingram
- UQ Child Health Research Centre, University of Queensland, Brisbane, QLD, Australia
| | - Andrew R Hallahan
- UQ Child Health Research Centre, University of Queensland, Brisbane, QLD, Australia; Oncology Service, Lady Cilento Children's Hospital, Children's Health Queensland, Brisbane, QLD, Australia
| | - Anne Jouvet
- Centre de Pathologie EST, Groupement Hospitalier EST, Université de Lyon, Lyon, France
| | - Michelle Fèvre-Montange
- INSERM U1028, CNRS UMR5292, Centre de Recherche en Neurosciences, Université de Lyon, Lyon, France
| | - Alexandre Vasiljevic
- Centre de Pathologie et Neuropathologie Est, Centre de Biologie et Pathologie Est, Groupement Hospitalier Est, Hospices Civils de Lyon, Bron; ONCOFLAM, Neuro-Oncologie et Neuro-Inflammation Centre de Recherche en Neurosciences de Lyon, Lyon, France
| | | | - Tomoko Shofuda
- Division of Stem Cell Research, Institute for Clinical Research, Osaka National Hospital, Osaka, Japan
| | - Naoki Kagawa
- Department of Neurosurgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Naoya Hashimoto
- Department of Neurosurgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Nada Jabado
- Division of Hematology/Oncology, McGill University, Montreal, QC, Canada
| | - Alexander G Weil
- Departments of Pediatrics and Human Genetics, McGill University, Montreal, QC, Canada
| | - Tenzin Gayden
- Departments of Pediatrics and Human Genetics, McGill University, Montreal, QC, Canada
| | - Takafumi Wataya
- Department of Pediatric Neurosurgery, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Tarek Shalaby
- Departments of Oncology and Neuro-Oncology, University Children's Hospital of Zurich, Zurich, Switzerland
| | - Michael Grotzer
- Departments of Oncology and Neuro-Oncology, University Children's Hospital of Zurich, Zurich, Switzerland
| | - Karel Zitterbart
- Department of Pediatric Oncology, School of Medicine, Masaryk University, Brno, Czech Republic
| | - Jaroslav Sterba
- Department of Pediatric Oncology, School of Medicine, Masaryk University, Brno, Czech Republic
| | - Leos Kren
- Department of Pathology, University Hospital Brno, Brno, Czech Republic
| | - Tibor Hortobágyi
- Division of Neuropathology, University of Debrecen, Medical and Health Science Centre, Debrecen, Hungary
| | - Almos Klekner
- Division of Neuropathology, University of Debrecen, Medical and Health Science Centre, Debrecen, Hungary
| | - Bognár László
- Division of Neuropathology, University of Debrecen, Medical and Health Science Centre, Debrecen, Hungary
| | - Tímea Pócza
- 2nd Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - Peter Hauser
- 2nd Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - Ulrich Schüller
- Center for Neuropathology, Ludwig-Maximilians-Universität, Munich, Germany
| | - Shin Jung
- Department of Neurosurgery, Chonnam National University Research Institute of Medical Sciences, Chonnam National University Hwasun Hospital and Medical School, Hwasun-gun, Chonnam South Korea
| | - Woo-Youl Jang
- Department of Neurosurgery, Chonnam National University Research Institute of Medical Sciences, Chonnam National University Hwasun Hospital and Medical School, Hwasun-gun, Chonnam South Korea
| | - Pim J French
- Department of Neurosurgery, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Johan M Kros
- Department of Pathology, Erasmus University Medical Center, Rotterdam, Netherlands
| | | | - Luca Massimi
- Pediatric Neurosurgery, Catholic University Medical School, Rome, Italy
| | - Jeffrey R Leonard
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Washington University School of Medicine and St Louis Children's Hospital, St Louis, MO, USA
| | - Joshua B Rubin
- Departments of Pediatrics, Anatomy and Neurobiology, Washington University School of Medicine and St Louis Children's Hospital, St Louis, MO, USA
| | - Rajeev Vibhakar
- Department of Pediatrics, University of Colorado Denver, Aurora, CO, USA
| | - Lola B Chambless
- Department of Neurological Surgery, Vanderbilt Medical Center, Nashville, TN, USA
| | - Michael K Cooper
- Department of Neurology, Vanderbilt Medical Center, Nashville, TN, USA
| | - Reid C Thompson
- Department of Neurological Surgery, Vanderbilt Medical Center, Nashville, TN, USA
| | - Claudia C Faria
- Division of Neurosurgery, Centro Hospitalar Lisboa Norte, Hospital de Santa Maria, Lisbon, Portugal
| | - Alice Carvalho
- Departamento de Oncologia Pediátrica, Hospital Pediátrico de Coimbra, Centro Hospitalar de Coimbra, Coimbra, Portugal
| | - Sofia Nunes
- Unidade de Neuro-Oncologia Pediátrica, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisbon, Portugal
| | - José Pimentel
- Divison of Pathology, Centro Hospitalar Lisboa Norte, Hospital de Santa Maria, Lisbon, Portugal
| | - Xing Fan
- Department of Neurosurgery and Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Karin M Muraszko
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Enrique López-Aguilar
- Division of Pediatric Hematology/Oncology, Hospital Pediatría Centro Médico Nacional Century XXI, Mexico City, Mexico
| | - David Lyden
- Department of Pediatrics and Cell and Developmental Biology, Weill Cornell Medical College, New York, NY, USA
| | - Livia Garzia
- Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON, Canada
| | - David J H Shih
- Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Noriyuki Kijima
- Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON, Canada
| | - Christian Schneider
- Division of Neurosurgery, The Hospital for Sick Children, Toronto, ON, Canada
| | - Jennifer Adamski
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Paul A Northcott
- Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Marcel Kool
- Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - David T W Jones
- Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jennifer A Chan
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada
| | - Ana Nikolic
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada
| | | | - Erwin G Van Meir
- Department of Hematology & Medical Oncology, School of Medicine and Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Satoru Osuka
- Department of Hematology & Medical Oncology, School of Medicine and Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Jeffrey J Olson
- Department of Neurosurgery, School of Medicine and Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Arman Jahangiri
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Brandyn A Castro
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Nalin Gupta
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA; Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA
| | - William A Weiss
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA; Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA; Department of Neurology, University of California San Francisco, San Francisco, CA, USA
| | - Iska Moxon-Emre
- Program in Neuroscience and Mental Health and Department of Psychology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Donald J Mabbott
- Program in Neuroscience and Mental Health and Department of Psychology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Alvaro Lassaletta
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Cynthia E Hawkins
- Division of Pathology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Uri Tabori
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada; The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada
| | - James Drake
- Division of Neurosurgery, The Hospital for Sick Children, Toronto, ON, Canada
| | - Abhaya Kulkarni
- Division of Neurosurgery, The Hospital for Sick Children, Toronto, ON, Canada
| | - Peter Dirks
- Division of Neurosurgery, The Hospital for Sick Children, Toronto, ON, Canada; The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada
| | - James T Rutka
- Division of Neurosurgery, The Hospital for Sick Children, Toronto, ON, Canada; The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Andrey Korshunov
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stefan M Pfister
- Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ), Heidelberg, Germany; Department of Pediatric Oncology, University Hospital Heidelberg, Heidelberg, Germany
| | - Roger J Packer
- Department of Neurology, Children's National Medical Center, Washington, DC, USA
| | - Vijay Ramaswamy
- Division of Neurosurgery, The Hospital for Sick Children, Toronto, ON, Canada; Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada; The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada; Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Michael D Taylor
- Division of Neurosurgery, The Hospital for Sick Children, Toronto, ON, Canada; The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada; Developmental & Stem Cell Biology Program, The Hospital for Sick Children, Toronto, ON, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.
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Li KKW, Pang JCS, Chung NYF, Ng YL, Chan NHL, Zhou L, Poon WS, Ng HK. EMP3 overexpression is associated with oligodendroglial tumors retaining chromosome arms 1p and 19q. Int J Cancer 2006; 120:947-50. [PMID: 17187361 DOI: 10.1002/ijc.22415] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The epithelial membrane protein 3 (EMP3) gene located on chromosome 19q13 has been implicated as a candidate tumor suppressor gene (TSG) in neuroblastomas and gliomas. The aim of this study was to investigate whether EMP3 is involved in oligodendroglial tumors (OTs), which frequently carry combined chromosomes 1p and 19q deletion. We first investigated the transcript level of EMP3 in a cohort of 57 OTs by quantitative real-time RT-PCR. Our results showed that 10 (18%) tumors had reduced EMP3 expression level compared to normal brains. Six of these tumors carried chromosome 19q13 deletion but no statistical correlation was found between the 2 parameters. Intriguingly, a similar proportion (11 of 57, 19%) of tumors displayed EMP3 overexpression, with 8 of them having transcript level >10-fold higher than normal brain. All 11 OTs retained chromosomes 1p36 and 19q13, and a significant association was found between EMP3 overexpression and balanced chromosomes 1p36 and 19q13 (p = 0.004). The methylation status of EMP3 was evaluated by bisulfite sequencing in 29 OTs with diverse expression levels. All tumors except 3 showed aberrant methylation of EMP3 and no correlation was observed between transcript level and methylation status, suggesting that methylation alone does not mediate transcriptional down-regulation of EMP3 in OTs. In conclusion, our study demonstrates that EMP3 overexpression is involved in OTs retaining chromosomes 1p and 19q and does not support EMP3 as the target TSG on chromosome 19q13 in OTs.
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Affiliation(s)
- Kay Ka Wai Li
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong, Hong Kong, China
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Chang Q, Pang JCS, Li KKW, Poon WS, Zhou L, Ng HK. Promoter hypermethylation profile of RASSF1A, FHIT, and sFRP1 in intracranial primitive neuroectodermal tumors. Hum Pathol 2006; 36:1265-72. [PMID: 16311119 DOI: 10.1016/j.humpath.2005.09.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2005] [Revised: 09/06/2005] [Accepted: 09/08/2005] [Indexed: 10/25/2022]
Abstract
Medulloblastomas (MBs) and supratentorial primitive neuroectodermal tumors (SPNETs) are histologically alike intracranial PNETs found in different anatomical locations of the brain. Current evidence suggests that hypermethylation of promoter CpG islands is a common epigenetic event in a variety of human cancers. The aim of this study was to investigate whether promoter hypermethylation of putative tumor suppressor genes was involved in both types of intracranial PNETs. We examined the methylation status at promoter regions of RASSF1A, FHIT, and sFRP1 by methylation-specific polymerase chain reaction in a cohort of 25 primary MBs, 9 primary SPNETs, and 3 MB and 2 SPNET cell lines. Our results revealed no promoter hypermethylation of RASSF1A, FHIT, and sFRP1 in 2 normal cerebellar and 5 normal cerebral tissue specimens examined. In contrast, promoter hypermethylation of RASSF1A was detected in 100% of primary MBs, 67% (6/9) of primary SPNETs, and all PNET cell lines. The frequency of promoter hypermethylation of RASSF1A was significantly lower in SPNETs than in MBs (Fisher exact test, P = .014). Treatment of RASSF1A-deficient PNET cell lines with 5-aza-2'deoxycytidine, a demethylating agent, restored RASSF1A expression, providing evidence that promoter hypermethylation contributes to transcriptional silencing. In addition, promoter hypermethylation of FHIT and sFRP1 was detected in 22% (2/9) and 11% (1/9) of SPNETs, respectively, but not in any MBs studied. In conclusion, our study demonstrates that promoter hypermethylation of RASSF1A is a common event in intracranial PNETs, whereas FHIT and sFRP1 are epigenetically affected in a fraction of SPNETs.
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Affiliation(s)
- Qing Chang
- Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China
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