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Fangusaro J, Jones DT, Packer RJ, Gutmann DH, Milde T, Witt O, Mueller S, Fisher MJ, Hansford JR, Tabori U, Hargrave D, Bandopadhayay P. Pediatric low-grade glioma: State-of-the-art and ongoing challenges. Neuro Oncol 2024; 26:25-37. [PMID: 37944912 PMCID: PMC10768984 DOI: 10.1093/neuonc/noad195] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023] Open
Abstract
The most common childhood central nervous system (CNS) tumor is pediatric low-grade glioma (pLGG), representing 30%-40% of all CNS tumors in children. Although there is high associated morbidity, tumor-related mortality is relatively rare. pLGG is now conceptualized as a chronic disease, underscoring the importance of functional outcomes and quality-of-life measures. A wealth of data has emerged about these tumors, including a better understanding of their natural history and their molecular drivers, paving the way for the use of targeted inhibitors. While these treatments have heralded tremendous promise, challenges remain about how to best optimize their use, and the long-term toxicities associated with these inhibitors remain unknown. The International Pediatric Low-Grade Glioma Coalition (iPLGGc) is a global group of physicians and scientists with expertise in pLGG focused on addressing key pLGG issues. Here, the iPLGGc provides an overview of the current state-of-the-art in pLGG, including epidemiology, histology, molecular landscape, treatment paradigms, survival outcomes, functional outcomes, imaging response, and ongoing challenges. This paper also serves as an introduction to 3 other pLGG manuscripts on (1) pLGG preclinical models, (2) consensus framework for conducting early-phase clinical trials in pLGG, and (3) pLGG resistance, rebound, and recurrence.
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Affiliation(s)
- Jason Fangusaro
- Department of Hematology and Oncology, Children’s Healthcare of Atlanta and Emory University, Atlanta, Georgia, USA
| | - David T Jones
- Translational Program, Hopp Children’s Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- German Cancer Research Center (DKFZ), University Hospital Heidelberg, Heidelberg, Germany
| | - Roger J Packer
- Brain Tumor Institute, Daniel and Jennifer Gilbert Neurofibromatosis Institute, Neuroscience and Behavioral Medicine, Children’s National Medical Center, Washington, District of Columbia, USA
| | - David H Gutmann
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Till Milde
- Translational Program, Hopp Children’s Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- German Cancer Research Center (DKFZ), University Hospital Heidelberg, Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- KiTZ Clinical Trial Unit (ZIPO), Department of Pediatric Hematology, Oncology, Immunology and Pulmonology, Heidelberg University Hospital; National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - Olaf Witt
- Translational Program, Hopp Children’s Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- German Cancer Research Center (DKFZ), University Hospital Heidelberg, Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology, German Cancer Research Center (DKFZ) and German Consortium for Translational Cancer Research (DKTK), Heidelberg, Germany
- KiTZ Clinical Trial Unit (ZIPO), Department of Pediatric Hematology, Oncology, Immunology and Pulmonology, Heidelberg University Hospital; National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - Sabine Mueller
- Department of Neurological Surgery, University of California, San Francisco, California, USA
- Department of Pediatrics, University of California, San Francisco, California, USA
- Department of Neurology, University of California, San Francisco, California, USA
- Department of Oncology, University Children’s Hospital Zürich, Zürich, Switzerland
| | - Michael J Fisher
- Division of Oncology, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Jordan R Hansford
- Michael Rice Centre for Hematology and Oncology, Women’s and Children’s Hospital, Adelaide, South Australia, Australia
- South Australia Health and Medical Research Institute, Adelaide, South Australia, Australia
- South Australia ImmunoGENomics Cancer Institute, University of Adelaide, Adelaide, South Australia, Australia
| | - Uri Tabori
- The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Darren Hargrave
- University College London Great Ormond Street Institute of Child Health, London, UK
| | - Pratiti Bandopadhayay
- Department of Pediatric Oncology, Dana-Farber/Boston Children’s Cancer and Blood Disorders Center, Boston, Massachusetts, USA
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2
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Tang Y, Gutmann DH. Neurofibromatosis Type 1-Associated Optic Pathway Gliomas: Current Challenges and Future Prospects. Cancer Manag Res 2023; 15:667-681. [PMID: 37465080 PMCID: PMC10351533 DOI: 10.2147/cmar.s362678] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 06/06/2023] [Indexed: 07/20/2023] Open
Abstract
Optic pathway glioma (OPG) occurs in as many as one-fifth of individuals with the neurofibromatosis type 1 (NF1) cancer predisposition syndrome. Generally considered low-grade and slow growing, many children with NF1-OPGs remain asymptomatic. However, due to their location within the optic pathway, ~20-30% of those harboring NF1-OPGs will experience symptoms, including progressive vision loss, proptosis, diplopia, and precocious puberty. While treatment with conventional chemotherapy is largely effective at attenuating tumor growth, it is not clear whether there is much long-term recovery of visual function. Additionally, because these tumors predominantly affect young children, there are unique challenges to NF1-OPG diagnosis, monitoring, and longitudinal management. Over the past two decades, the employment of authenticated genetically engineered Nf1-OPG mouse models have provided key insights into the function of the NF1 protein, neurofibromin, as well as the molecular and cellular pathways that contribute to optic gliomagenesis. Findings from these studies have resulted in the identification of new molecular targets whose inhibition blocks murine Nf1-OPG growth in preclinical studies. Some of these promising compounds have now entered into early clinical trials. Future research focused on defining the determinants that underlie optic glioma initiation, expansion, and tumor-induced optic nerve injury will pave the way to personalized risk assessment strategies, improved tumor monitoring, and optimized treatment plans for children with NF1-OPG.
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Affiliation(s)
- Yunshuo Tang
- Department of Ophthalmology, Washington University School of Medicine, St. Louis, MO, USA
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - David H Gutmann
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
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3
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Management of Optic Pathway Glioma: A Systematic Review and Meta-Analysis. Cancers (Basel) 2022; 14:cancers14194781. [PMID: 36230704 PMCID: PMC9563939 DOI: 10.3390/cancers14194781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 09/25/2022] [Accepted: 09/26/2022] [Indexed: 11/17/2022] Open
Abstract
Background: OPG accounts for 3−5% of childhood central nervous system (CNS) tumors and about 2% of pediatric glial lesions. Methods: Article selection was performed by searching PubMed, Web of Science, and Cochrane databases. Results: The pooled mortality rate was 0.12 (95%CI 0.09−0.14). Due to the unrepresentative data, improved and not changed outcomes were classified as favorable outcomes and worsened as unfavorable. Meta-analyses were performed to determine the rate of clinical and radiological favorable outcomes. In terms of visual assessment, the pooled rate of a favorable outcome in chemotherapy, radiotherapy, and surgery was 0.74, 0.81, and 0.65, respectively, and the overall pooled rate of the favorable outcome was 0.75 (95%CI 0.70−0.80). In terms of radiological assessment, the rate of a favorable outcome following chemotherapy, radiotherapy, and surgery was 0.71, 0.74, and 0.67, respectively, and the overall pooled rate of the favorable outcome is 0.71 (95%CI 0.65−0.77). The subgroup analysis revealed no significant difference in the rate of clinical and radiological favorable outcomes between the different treatment modalities (p > 0.05). Conclusion: Our analyses showed that each therapeutic modality represents viable treatment options to achieve remission for these patients.
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Zhou X, Su Y, Huang W, Lin X, Xing Z, Cao D. Differentiation between supratentorial pilocytic astrocytoma and extraventricular ependymoma using multiparametric MRI. Acta Radiol 2021; 63:1661-1668. [PMID: 34709088 DOI: 10.1177/02841851211054195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND The differentiation of supratentorial pilocytic astrocytomas (STPAs) and supratentorial extraventricular ependymomas (STEEs) is clinically pivotal because of distinct therapeutic management and prognosis, which is sometimes challenging to both neuroradiologists and pathologists. PURPOSE To explore and compare the conventional and advanced magnetic resonance imaging (MRI) features between STPA and STEE. MATERIAL AND METHODS A total of 23 patients with STPAs and 23 patients with STEEs were reviewed in this study. All patients performed conventional MRI, susceptibility-weighted imaging (SWI), and diffusion-weighted imaging (DWI), and 34 patients (17 with STPAs and 17 with STEEs) examined dynamic susceptibility contrast-enhanced perfusion-weighted imaging (DSC-PWI) in addition. Clinical data, conventional MRI features, minimum relative apparent diffusion coefficient ratio (rADCmin), and maximum relative cerebral blood volume ratio (rCBVmax) were compared between the two groups and subgroups. The optimal cutoff values of rADCmin and rCBVmax with sensitivity and specificity were calculated. RESULTS STPA manifested similar to STEE as a solid-cystic mass but more frequently presented with a marked enhancing deep nodule (P = 0.02), no peritumoral edema (P = 0.036), higher rADCmin value (2.0 ± 0.5 vs. 0.9 ± 0.2; P < 0.001), and lower rCBVmax value (2.1 ± 0.4 vs. 14.4 ± 5.5; P < 0.001). The cutoff value of >1.39 for rADCmin and ≤ 2.81 for rCBVmax produced a high sensitivity of 95.65% and 100.0%, respectively, and all produced a specificity of 100.0% in differentiating STPAs from STEEs. CONCLUSION Multiparametric MRI techniques including conventional MRI, DWI, and DSC-PWI contribute to the differential diagnosis of STPA and STEE.
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Affiliation(s)
- Xiaofang Zhou
- Department of Radiology, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, PR China
| | - Yan Su
- Department of Radiology, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, PR China
| | - Wanrong Huang
- Department of Radiology, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, PR China
| | - Xiaojun Lin
- Department of Radiology, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, PR China
| | - Zhen Xing
- Department of Radiology, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, PR China
| | - Dairong Cao
- Department of Radiology, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, PR China
- Fujian Key Laboratory of Precision Medicine for Cancer, the First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, PR China
- Key Laboratory of Radiation Biology of Fujian Higher Education Institutions, the First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, PR China
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Yang P, Liu HC, Qiu E, Wang W, Zhang JL, Jiang LB, Kang J. Comparison of two surgical methods for the treatment of optic pathway gliomas in the intraorbital segment: an analysis of long-term clinical follow-up, which evaluates the surgical outcomes. Transl Pediatr 2021; 10:1586-1597. [PMID: 34295773 PMCID: PMC8261595 DOI: 10.21037/tp-20-451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 04/16/2021] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND This study analyzes two kinds of surgical methods for the treatment of optic pathway gliomas (OPGs) in the intraorbital segment, as well as the surgical outcomes of OPGs. METHODS The clinical data of 86 patients with OPGs treated in our center was analyzed retrospectively, and the clinical symptoms, treatment methods, and follow-up results were recorded. RESULTS For OPGs in the intraorbital segment, the optic nerve sheath incision was performed to remove a tumor while retaining the optic nerve sheath in Group 1 (n=36). The optic nerve sheath and the tumor were simultaneously removed without retaining the optic nerve sheath in group 2 (n=50). The effects of the design of the surgical methods on the post-surgical outcome are: One patient (1/36, 2.8%) had recurrence in Group 1 and one patient (1/50, 2.0%) had recurrence in group 2. The differences in the surgical outcomes of the two groups regarding exophthalmos, conjunctiva swelling, eye movement disorder, and ptosis were found to be statistically significant (P<0.05). Compared with group 2, the surgical outcomes in the postoperative phase of Group 1 were more satisfactory. CONCLUSIONS The two surgical methods do not increase the recurrence rate of tumors. The resection of OPGs through an optic nerve sheath incision was found to be an ideal surgical method for reducing complications in the postoperative phase and for providing better surgical outcomes.
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Affiliation(s)
- Peng Yang
- Department of Neurosurgery, Tongren Hospital of China Capital Medical University, Beijing, China
| | - Hao-Cheng Liu
- Department of Neurosurgery, Tongren Hospital of China Capital Medical University, Beijing, China
| | - E Qiu
- Department of Neurosurgery, Tongren Hospital of China Capital Medical University, Beijing, China
| | - Wei Wang
- Department of Neurosurgery, Tongren Hospital of China Capital Medical University, Beijing, China
| | - Jia-Liang Zhang
- Department of Neurosurgery, Tongren Hospital of China Capital Medical University, Beijing, China
| | - Li-Bin Jiang
- Department of Ophthalmology, Tongren Hospital of China Capital Medical University, Beijing, China
| | - Jun Kang
- Department of Neurosurgery, Tongren Hospital of China Capital Medical University, Beijing, China
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6
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Kim J, Gianferante M, Karyadi DM, Hartley SW, Frone MN, Luo W, Robison LL, Armstrong GT, Bhatia S, Dean M, Yeager M, Zhu B, Song L, Sampson JN, Yasui Y, Leisenring WM, Brodie SA, de Andrade KC, Fortes FP, Goldstein AM, Khincha PP, Machiela MJ, McMaster ML, Nickerson ML, Oba L, Pemov A, Pinheiro M, Rotunno M, Santiago K, Wegman-Ostrosky T, Diver WR, Teras L, Freedman ND, Hicks BD, Zhu B, Wang M, Jones K, Hutchinson AA, Dagnall C, Savage SA, Tucker MA, Chanock SJ, Morton LM, Stewart DR, Mirabello L. Frequency of Pathogenic Germline Variants in Cancer-Susceptibility Genes in the Childhood Cancer Survivor Study. JNCI Cancer Spectr 2021; 5:pkab007. [PMID: 34308104 PMCID: PMC8023430 DOI: 10.1093/jncics/pkab007] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 12/01/2020] [Accepted: 12/22/2020] [Indexed: 11/13/2022] Open
Abstract
Background Pediatric cancers are the leading cause of death by disease in children despite improved survival rates overall. The contribution of germline genetic susceptibility to pediatric cancer survivors has not been extensively characterized. We assessed the frequency of pathogenic or likely pathogenic (P/LP) variants in 5451 long-term pediatric cancer survivors from the Childhood Cancer Survivor Study. Methods Exome sequencing was conducted on germline DNA from 5451 pediatric cancer survivors (cases who survived ≥5 years from diagnosis; n = 5105 European) and 597 European cancer-free adults (controls). Analyses focused on comparing the frequency of rare P/LP variants in 237 cancer-susceptibility genes and a subset of 60 autosomal dominant high-to-moderate penetrance genes, for both case-case and case-control comparisons. Results Of European cases, 4.1% harbored a P/LP variant in high-to-moderate penetrance autosomal dominant genes compared with 1.3% in controls (2-sided P = 3 × 10-4). The highest frequency of P/LP variants was in genes typically associated with adult onset rather than pediatric cancers, including BRCA1/2, FH, PALB2, PMS2, and CDKN2A. A statistically significant excess of P/LP variants, after correction for multiple tests, was detected in patients with central nervous system cancers (NF1, SUFU, TSC1, PTCH2), Wilms tumor (WT1, REST), non-Hodgkin lymphoma (PMS2), and soft tissue sarcomas (SDHB, DICER1, TP53, ERCC4, FGFR3) compared with other pediatric cancers. Conclusion In long-term pediatric cancer survivors, we identified P/LP variants in cancer-susceptibility genes not previously associated with pediatric cancer as well as confirmed known associations. Further characterization of variants in these genes in pediatric cancer will be important to provide optimal genetic counseling for patients and their families.
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Affiliation(s)
- Jung Kim
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Matthew Gianferante
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Danielle M Karyadi
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Stephen W Hartley
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Megan N Frone
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Wen Luo
- Cancer Genomics Research Laboratory, Frederick
National Laboratory for Cancer Research, Frederick, MD, USA
| | - Leslie L Robison
- Department of Epidemiology and Cancer Control, St.
Jude Children’s Research Hospital, Memphis, TN, USA
| | - Gregory T Armstrong
- Department of Epidemiology and Cancer Control, St.
Jude Children’s Research Hospital, Memphis, TN, USA
| | - Smita Bhatia
- Institute for Cancer Outcomes and Survivorship,
University of Alabama at Birmingham, Birmingham, AL, USA
| | - Michael Dean
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
- Cancer Genomics Research Laboratory, Frederick
National Laboratory for Cancer Research, Frederick, MD, USA
| | - Meredith Yeager
- Cancer Genomics Research Laboratory, Frederick
National Laboratory for Cancer Research, Frederick, MD, USA
| | - Bin Zhu
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Lei Song
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Joshua N Sampson
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Yutaka Yasui
- Department of Epidemiology and Cancer Control, St.
Jude Children’s Research Hospital, Memphis, TN, USA
| | - Wendy M Leisenring
- Cancer Prevention and Clinical Statistics Programs,
Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Seth A Brodie
- Cancer Genomics Research Laboratory, Frederick
National Laboratory for Cancer Research, Frederick, MD, USA
| | - Kelvin C de Andrade
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Fernanda P Fortes
- International Research Center, A.C. Camargo Cancer
Center, São Paulo, Brazil
| | - Alisa M Goldstein
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Payal P Khincha
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Mitchell J Machiela
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Mary L McMaster
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Michael L Nickerson
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Leatrisse Oba
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Alexander Pemov
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Maisa Pinheiro
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Melissa Rotunno
- Division of Cancer Control and Population Sciences,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Karina Santiago
- International Research Center, A.C. Camargo Cancer
Center, São Paulo, Brazil
| | - Talia Wegman-Ostrosky
- Basic Research Subdirection, Instituto Nacional de
Cancerología (INCan), Mexico City, Mexico
| | - W Ryan Diver
- Epidemiology Research Program, American Cancer
Society, Atlanta, GA, USA
| | - Lauren Teras
- Epidemiology Research Program, American Cancer
Society, Atlanta, GA, USA
| | - Neal D Freedman
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Belynda D Hicks
- Cancer Genomics Research Laboratory, Frederick
National Laboratory for Cancer Research, Frederick, MD, USA
| | - Bin Zhu
- Cancer Genomics Research Laboratory, Frederick
National Laboratory for Cancer Research, Frederick, MD, USA
| | - Mingyi Wang
- Cancer Genomics Research Laboratory, Frederick
National Laboratory for Cancer Research, Frederick, MD, USA
| | - Kristine Jones
- Cancer Genomics Research Laboratory, Frederick
National Laboratory for Cancer Research, Frederick, MD, USA
| | - Amy A Hutchinson
- Cancer Genomics Research Laboratory, Frederick
National Laboratory for Cancer Research, Frederick, MD, USA
| | - Casey Dagnall
- Cancer Genomics Research Laboratory, Frederick
National Laboratory for Cancer Research, Frederick, MD, USA
| | - Sharon A Savage
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Margaret A Tucker
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Stephen J Chanock
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Lindsay M Morton
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Douglas R Stewart
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
| | - Lisa Mirabello
- Division of Cancer Epidemiology and Genetics,
National Cancer Institute, National Institutes of Health,
Bethesda, MD, USA
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Abstract
Phakomatoses present with characteristic findings on the skin, central or peripheral nervous system, and tumors. Neurofibromatosis type 1 is the most common syndrome and is characterized by Café-au-lait macules, intertriginous freckling, Lisch nodules, and tumors including neurofibromas, malignant peripheral nerve sheath tumors, and gliomas. Tuberous Sclerosis Complex is characterized by benign hamartomas presenting with hypomelanotic macules, shagreen patches, angiofibromas, confetti lesions and tumors including cortical tubers, subependymal nodules, subependymal giant cell astrocytomas and tumors of the kidney, lung, and heart. Managing these disorders requires disease specific supportive care, tumor monitoring, surveillance for selected cancers, and treatment of comorbid conditions.
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Affiliation(s)
- Benjamin Becker
- Department of Neurology, Wake Forest Baptist Health, 1 Medical Center Boulevard, Winston Salem, NC 27157, USA.
| | - Roy E Strowd
- Department of Neurology, Wake Forest Baptist Health, 1 Medical Center Boulevard, Winston Salem, NC 27157, USA; Department of Internal Medicine, Section on Hematology and Oncology, Wake Forest Baptist Health, Winston Salem, NC 27157, USA; Translational Science Institute, Wake Forest Baptist Health, Winston Salem, NC 27157, USA
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8
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Optic Pathway Glioma in Type 1 Neurofibromatosis: Review of Its Pathogenesis, Diagnostic Assessment, and Treatment Recommendations. Cancers (Basel) 2019; 11:cancers11111790. [PMID: 31739524 PMCID: PMC6896195 DOI: 10.3390/cancers11111790] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 11/12/2019] [Accepted: 11/12/2019] [Indexed: 12/13/2022] Open
Abstract
Type 1 neurofibromatosis (NF1) is a dominantly inherited condition predisposing to tumor development. Optic pathway glioma (OPG) is the most frequent central nervous system tumor in children with NF1, affecting approximately 15-20% of patients. The lack of well-established prognostic markers and the wide clinical variability with respect to tumor progression and visual outcome make the clinical management of these tumors challenging, with significant differences among distinct centers. We reviewed published articles on OPG diagnostic protocol, follow-up and treatment in NF1. Cohorts of NF1 children with OPG reported in the literature and patients prospectively collected in our center were analyzed with regard to clinical data, tumor anatomical site, diagnostic workflow, treatment and outcome. In addition, we discussed the recent findings on the pathophysiology of OPG development in NF1. This review provides a comprehensive overview about the clinical management of NF1-associated OPG, focusing on the most recent advances from preclinical studies with genetically engineered models and the ongoing clinical trials.
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9
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Kaltsas GA, Kolomodi D, Randeva H, Grossman A. Nonneuroendocrine Neoplasms of the Pituitary Region. J Clin Endocrinol Metab 2019; 104:3108-3123. [PMID: 30779850 DOI: 10.1210/jc.2018-01871] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 02/14/2019] [Indexed: 12/18/2022]
Abstract
CONTEXT Although most sellar lesions are related to pituitary adenomas, the region gives rise to a variety of neoplasms that can be associated with substantial morbidity and/or mortality. DESIGN Information from reviews and guidelines of relevant societies dealing with such neoplasms, as well as articles that have provided new developments that made important contributions to their pathogenesis and treatment up to 2018, were obtained: public indexes such as PubMed/MEDLINE were used with the relevant search items. RESULTS Sellar neoplasms have a worse outcome than pituitary adenomas that is related not only to their natural history but also to side effects of therapies and evolving endocrine and/or hypothalamic deficiencies. Recent imaging advances have established the radiological fingerprint of some of these neoplasms, and several chromosomal aberrations have also been identified. Although established approaches along with new surgical and radiotherapeutic approaches remain the main treatment modalities, recent evidence has provided insight into their molecular pathogenesis involving, other than chemotherapy, treatments with targeted agents as in gliomas and craniopharyngiomas bearing BRAF mutations. Development of predictive markers of recurrences may also identify high-risk patients, including proliferative markers and expression of the progesterone receptor in meningiomas, and lead to less aggressive surgery. Owing to the rarity and complexity of these neoplasms, patients should be managed in dedicated centers. CONCLUSIONS The diagnosis and management of sellar neoplasms necessitate a multidisciplinary approach. Following evolving recent advances in their diagnosis and therapy, such a multidisciplinary approach needs to be extended to establish evidence-based diagnostic and management plans.
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Affiliation(s)
- Gregory A Kaltsas
- First Department of Propaedeutic Internal Medicine, National and Kapodistrian University of Athens, Athens, Greece
- WISDEM Centre, University Hospital of Coventry and Warwickshire, Coventry, United Kingdom
| | - Dionysia Kolomodi
- First Department of Propaedeutic Internal Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Harpal Randeva
- WISDEM Centre, University Hospital of Coventry and Warwickshire, Coventry, United Kingdom
| | - Ashley Grossman
- Centre for Endocrinology, Barts and the London School of Medicine, Queen Mary University of London, London, United Kingdom
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10
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Sippl C, Urbschat S, Kim YJ, Senger S, Oertel J, Ketter R. Promoter methylation of RB1, P15, P16, and MGMT and their impact on the clinical course of pilocytic astrocytomas. Oncol Lett 2018; 15:1600-1606. [PMID: 29434855 PMCID: PMC5776924 DOI: 10.3892/ol.2017.7490] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 09/05/2017] [Indexed: 01/11/2023] Open
Abstract
Promoter methylation of P15, P16, RB transcriptional corepressor 1 (RB1) and O-6-methylguanine-DNA methyltransferase (MGMT) impacts the prognosis of numerous glioma subtypes. However, whether promoter methylation of these genes also has an impact on the clinical course of pilocytic astrocytoma remains unclear. Using methylation-specific polymerase chain reaction, the methylation status of the tumor suppressor genes P15, P16, RB1, and MGMT in pilocytic astrocytomas (n=18) was analyzed. Immunohistochemical staining for the R132H mutation of the isocitrate dehydrogenase (NADP(+)) 1, cytosolic (IDH1) gene was performed. Clinical data including age, gender, localization of tumor, extent of resection, treatment modality, progression-free survival and overall survival were collected. The methylation index for P15, P16, RB1 and MGMT was 0.0, 0.0, 5.6% (1/18) and 44.5% (8/18), respectively. If the MGMT promoter was methylated, the probability of relapse and second subsequent therapy was significantly increased (P=0.019). The one patient with methylation of P15 demonstrated a poor clinical course. The pilocytic astrocytomas of all 18 patients revealed wild-type IDH1. Clinically, there was a significant correlation of subtotal resection with the occurrence of relapse (P=0.005) and of the localization of the tumor with the extent of resection (P=0.031). Gross total resection was achieved significantly more often in pediatric patients than in adult patients (P=0.003). Adult patients demonstrated more relapses following the first tumor resection (P=0.001). The present study indicates that methylation of MGMT is associated with a poor clinical course and represents an age-independent risk factor for an unfavorable outcome. Other influential factors of outcome were the age of the patient and extent of resection.
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Affiliation(s)
- Christoph Sippl
- Department of Neurosurgery, University of Saarland, Faculty of Medicine, Homburg/Saar, D-66424 Homburg, Germany
| | - Steffi Urbschat
- Department of Neurosurgery, University of Saarland, Faculty of Medicine, Homburg/Saar, D-66424 Homburg, Germany
| | - Yoo Jin Kim
- Institute of Neuropathology, University of Saarland, Faculty of Medicine, Homburg/Saar, D-66424 Homburg, Germany
| | - Sebastian Senger
- Department of Neurosurgery, University of Saarland, Faculty of Medicine, Homburg/Saar, D-66424 Homburg, Germany
| | - Joachim Oertel
- Department of Neurosurgery, University of Saarland, Faculty of Medicine, Homburg/Saar, D-66424 Homburg, Germany
| | - Ralf Ketter
- Department of Neurosurgery, University of Saarland, Faculty of Medicine, Homburg/Saar, D-66424 Homburg, Germany
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[Optic chiasm glioma in children: Endocrine disorders in 14 cases]. Med Clin (Barc) 2016; 146:446-9. [PMID: 26971985 DOI: 10.1016/j.medcli.2016.01.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 12/27/2015] [Accepted: 01/07/2016] [Indexed: 11/22/2022]
Abstract
BACKGROUND AND OBJECTIVES To describe the frequency of endocrine disorders in children with optic chiasm glioma and analyze related factors. PATIENTS AND METHODS Review of medical records by collecting sex, age, history of neurofibromatosis, clinical presentation, treatment of tumour, and presence of endocrine abnormalities. Statistical tests Wilcoxon and Fisher. RESULTS 14 patients (6 female) with age at diagnosis of 0.5 to 7.0 years (mean±standard deviation: 2.97±2.32) and follow-up of 10.64±3.30 years (range 6.0 to 16.0). 12/14 presented endocrinopathy at follow-up: 8 precocious puberty, 5 hypopituitarism, and 5 obesity. The onset of deficits was related to the neuroophthalmological symptoms under the age of five (P=.02)and treatment of the tumour was required.(P=.03). CONCLUSIONS Children with optic chiasm gliomas may present endocrine disorders from the time of diagnosis of the tumor and, in particular as they develop on. The most common of these is precocious puberty. Pituitary deficits are associated with more aggressive tumours (those presenting with neuroophthalmological signs and symptoms before the age of five and requiring treatment).
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El Beltagy MA, Reda M, Enayet A, Zaghloul MS, Awad M, Zekri W, Taha H, El-Khateeb N. Treatment and Outcome in 65 Children with Optic Pathway Gliomas. World Neurosurg 2016; 89:525-34. [DOI: 10.1016/j.wneu.2016.02.042] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Revised: 02/07/2016] [Accepted: 02/09/2016] [Indexed: 11/27/2022]
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