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Fernando D, Ahmed AU, Williams BRG. Therapeutically targeting the unique disease landscape of pediatric high-grade gliomas. Front Oncol 2024; 14:1347694. [PMID: 38525424 PMCID: PMC10957575 DOI: 10.3389/fonc.2024.1347694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 02/19/2024] [Indexed: 03/26/2024] Open
Abstract
Pediatric high-grade gliomas (pHGG) are a rare yet devastating malignancy of the central nervous system's glial support cells, affecting children, adolescents, and young adults. Tumors of the central nervous system account for the leading cause of pediatric mortality of which high-grade gliomas present a significantly grim prognosis. While the past few decades have seen many pediatric cancers experiencing significant improvements in overall survival, the prospect of survival for patients diagnosed with pHGGs has conversely remained unchanged. This can be attributed in part to tumor heterogeneity and the existence of the blood-brain barrier. Advances in discovery research have substantiated the existence of unique subgroups of pHGGs displaying alternate responses to different therapeutics and varying degrees of overall survival. This highlights a necessity to approach discovery research and clinical management of the disease in an alternative subtype-dependent manner. This review covers traditional approaches to the therapeutic management of pHGGs, limitations of such methods and emerging alternatives. Novel mutations which predominate the pHGG landscape are highlighted and the therapeutic potential of targeting them in a subtype specific manner discussed. Collectively, this provides an insight into issues in need of transformative progress which arise during the management of pHGGs.
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Affiliation(s)
- Dasun Fernando
- Centre for Cancer Research, Hudson Institute of Medical Research, Monash University, Clayton, VIC, Australia
- Department of Molecular and Translational Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, VIC, Australia
| | - Afsar U. Ahmed
- Centre for Cancer Research, Hudson Institute of Medical Research, Monash University, Clayton, VIC, Australia
- Department of Molecular and Translational Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, VIC, Australia
| | - Bryan R. G. Williams
- Centre for Cancer Research, Hudson Institute of Medical Research, Monash University, Clayton, VIC, Australia
- Department of Molecular and Translational Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, VIC, Australia
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2
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Samborska M, Galli D, Achkar R, Thambyrajah S, Derwich K. Constitutional Mismatch Repair Deficiency Syndrome as a Cause of Numerous Malignancies in a Teenage Patient-A Case Report. J Pediatr Hematol Oncol 2023; 45:e917-e920. [PMID: 37526375 DOI: 10.1097/mph.0000000000002727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 06/15/2023] [Indexed: 08/02/2023]
Abstract
Constitutional mismatch repair deficiency syndrome is a genetic disorder resulting from a biallelic mutation in one of the following genes: MLH1, MSH2, MSH6, or PMS2. Individuals with constitutional mismatch repair deficiency are highly predisposed to develop both hematological and solid cancers in childhood, particularly lymphoma, brain tumors, and gastrointestinal neoplasms. We report a case of a boy diagnosed with B-cell acute lymphoblastic leukemia at the age of 3. In 2013, at the age of 6, head magnetic resonance imaging revealed hamartoma and astrocytoma lesions in the central nervous system. Two years after treatment completion, a diagnosis of precursor T-cell lymphoblastic lymphoma, accompanied by the vena cava syndrome, was established and treated accordingly. During treatment, a genetic test using Sanger sequencing was performed-a biallelic mutation in the MSH6 gene was detected. The study revealed that the mutation 17-bp c.2277-2293del. was inherited from the patient's mother. The second mutation, 5-bp c.1135_1139delAGAGA, developed inpatient de novo. At the age of 14, the diagnosis of isolated bone marrow relapse of acute lymphoblastic leukemia B-cell type was established. Due to the almost exceeded total dose of anthracyclines, the patient's treatment included blinatumomab, and subsequently, he was qualified for allogeneic hematopoietic cell transplantation. The patient remains in complete remission for 11 months after allogeneic hematopoietic stem cell transplantation under the care of the transplant center.
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Affiliation(s)
- Magdalena Samborska
- Department of Pediatric Oncology, Hematology and Transplantology, Institute of Pediatrics, Poznan University of Medical Sciencces, Poznan, Poland
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Akrout F, Achour A, Tops CMJ, Gallon R, Meddeb R, Achoura S, Ben Rekaya M, Hamdeni E, Rammeh S, Chkili R, Mansouri N, Belguith N, Mrad R. Constitutional mismatch repair deficiency syndrome with atypical features caused by a homozygous MLH1 missense variant (c.1918C>A, p.(Pro640Thr)): a case report. Front Oncol 2023; 13:1195814. [PMID: 37664053 PMCID: PMC10471184 DOI: 10.3389/fonc.2023.1195814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 07/24/2023] [Indexed: 09/05/2023] Open
Abstract
Constitutional mismatch repair deficiency (CMMRD) syndrome is a rare autosomal recessive genetic disorder caused by biallelic germline mutations in one of the mismatch repair genes. Carriers are at exceptionally high risk for developing, typically in early life, hematological and brain malignancies, as well as cancers observed in Lynch syndrome. We report a homozygous MLH1 missense variant (c.1918C>A p.(Pro640Thr)) in a Tunisian patient with CMMRD syndrome and a family history of early-age colorectal cancer. The proband presented initially with colonic oligopolyposis and adenosquamous carcinoma of the caecum. He later developed several malignancies, including undifferentiated carcinoma of the parotid, grade 4 IDH-mutant astrocytoma, and ampulla of Vater adenocarcinoma. The patient was older than typical for this disease and had a remarkably prolonged survival despite developing four distinct aggressive malignancies. The current report highlights the challenges in assessing the pathogenicity of the identified variant and the remarkable phenotypic diversity in CMMRD.
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Affiliation(s)
- Firas Akrout
- Department of Neurosurgery, Military Hospital of Tunis, Tunis, Tunisia
- Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Ahlem Achour
- Department of Congenital and Hereditary Diseases, Charles Nicolle Hospital, Tunis, Tunisia
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, Netherlands
- Laboratory of Human Genetics, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Carli M. J. Tops
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, Netherlands
| | - Richard Gallon
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Rym Meddeb
- Department of Congenital and Hereditary Diseases, Charles Nicolle Hospital, Tunis, Tunisia
- Laboratory of Human Genetics, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Sameh Achoura
- Department of Neurosurgery, Military Hospital of Tunis, Tunis, Tunisia
- Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Mariem Ben Rekaya
- Research Unit of Onco-theranostic Biomarkers UR17ES15, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
- Department of Pathology, Charles Nicolle Hospital, Tunis, Tunisia
| | - Emna Hamdeni
- Research Unit of Onco-theranostic Biomarkers UR17ES15, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Soumaya Rammeh
- Research Unit of Onco-theranostic Biomarkers UR17ES15, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
- Department of Pathology, Charles Nicolle Hospital, Tunis, Tunisia
| | - Ridha Chkili
- Department of Neurosurgery, Military Hospital of Tunis, Tunis, Tunisia
- Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Nada Mansouri
- Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
- Department of Pathology, Military Hospital of Tunis, Tunis, Tunisia
| | - Neila Belguith
- Department of Congenital and Hereditary Diseases, Charles Nicolle Hospital, Tunis, Tunisia
- Laboratory of Human Molecular Genetics, Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia
| | - Ridha Mrad
- Department of Congenital and Hereditary Diseases, Charles Nicolle Hospital, Tunis, Tunisia
- Laboratory of Human Genetics, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
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4
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Briggs M, Das A, Firth H, Levine A, Sánchez-Ramírez S, Negm L, Ercan AB, Chung J, Bianchi V, Jalloh I, Phyu P, Thorp N, Grundy RG, Hawkins C, Trotman J, Tarpey P, Tabori U, Allinson K, Murray MJ. Recurrent posterior fossa group A (PFA) ependymoma in a young child with constitutional mismatch repair deficiency (CMMRD). Neuropathol Appl Neurobiol 2023; 49:e12862. [PMID: 36341503 PMCID: PMC10099894 DOI: 10.1111/nan.12862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 10/04/2022] [Accepted: 10/19/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Mayen Briggs
- Department of Neuropathology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Anirban Das
- The International Replication Repair Deficiency Consortium (IRRDC), Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Helen Firth
- Department of Genetics, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Adrian Levine
- The International Replication Repair Deficiency Consortium (IRRDC), Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Santiago Sánchez-Ramírez
- The International Replication Repair Deficiency Consortium (IRRDC), Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Logine Negm
- The International Replication Repair Deficiency Consortium (IRRDC), Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Ayse B Ercan
- The International Replication Repair Deficiency Consortium (IRRDC), Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Jill Chung
- The International Replication Repair Deficiency Consortium (IRRDC), Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Vanessa Bianchi
- The International Replication Repair Deficiency Consortium (IRRDC), Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Ibrahim Jalloh
- Department of Neurosurgery, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Poe Phyu
- Department of Radiology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Nicky Thorp
- Department of Radiation Oncology, The Christie Proton Beam Therapy Centre, Manchester, UK
| | - Richard G Grundy
- Children's Brain Tumour Research Centre, Biodiscovery Unit, University of Nottingham, Nottingham, UK
| | - Cynthia Hawkins
- Division of Neuropathology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Jamie Trotman
- East-Genomics Laboratory Hub (GLH) Genetics Laboratory, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Patrick Tarpey
- East-Genomics Laboratory Hub (GLH) Genetics Laboratory, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Uri Tabori
- The International Replication Repair Deficiency Consortium (IRRDC), Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Kieren Allinson
- Department of Neuropathology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Matthew J Murray
- Department of Pathology, University of Cambridge, Cambridge, UK.,Department of Paediatric Haematology and Oncology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
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Gallon R, Phelps R, Betts L, Hayes C, Masic D, Irving JAE, McAnulty C, Saha V, Vora A, Wimmer K, Motwani J, Macartney C, Burn J, Jackson MS, Moorman AV, Santibanez-Koref M. Detection of constitutional mismatch repair deficiency in children and adolescents with acute lymphoblastic leukemia. Leuk Lymphoma 2023; 64:217-220. [PMID: 36272172 DOI: 10.1080/10428194.2022.2131412] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Richard Gallon
- Translational and Clinical Research Institute, Newcastle University, Newcastle-upon-Tyne, UK
| | - Rachel Phelps
- Translational and Clinical Research Institute, Newcastle University, Newcastle-upon-Tyne, UK
| | - Leigh Betts
- Translational and Clinical Research Institute, Newcastle University, Newcastle-upon-Tyne, UK
| | - Christine Hayes
- Translational and Clinical Research Institute, Newcastle University, Newcastle-upon-Tyne, UK
| | - Dino Masic
- Translational and Clinical Research Institute, Newcastle University, Newcastle-upon-Tyne, UK
| | - Julie A E Irving
- Translational and Clinical Research Institute, Newcastle University, Newcastle-upon-Tyne, UK
| | - Ciaron McAnulty
- Northern Genetics Service, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle-upon-Tyne, UK
| | - Vaskar Saha
- Division of Cancer Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.,Tata Translational Cancer Research Centre, Tata Medical Center, Kolkata, India
| | - Ajay Vora
- Department of Paediatric Haematology, Great Ormond Street Hospital, London, UK
| | - Katharina Wimmer
- Institute of Human Genetics, Medical University of Innsbruck, Innsbruck, Austria
| | - Jayashree Motwani
- Department of Haematology, Birmingham Women's and Children's Hospital, Birmingham, UK
| | - Christine Macartney
- Department of Paediatric Haematology and Oncology, Royal Belfast Hospital for Sick Children, Belfast, UK
| | - John Burn
- Translational and Clinical Research Institute, Newcastle University, Newcastle-upon-Tyne, UK
| | - Michael S Jackson
- Biosciences Institute, Newcastle University, Newcastle-upon-Tyne, UK
| | - Anthony V Moorman
- Translational and Clinical Research Institute, Newcastle University, Newcastle-upon-Tyne, UK
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Wu D, Chen Q, Chen J. Case Report: Malignant Brain Tumors in Siblings With MSH6 Mutations. Front Oncol 2022; 12:920305. [PMID: 35903677 PMCID: PMC9315106 DOI: 10.3389/fonc.2022.920305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 06/08/2022] [Indexed: 12/02/2022] Open
Abstract
Background Familial brain tumor incidences are low. Identifying the genetic alterations of familial brain tumors can help better understand the pathogenesis and make therapy regimens for these tumors. Case Presentation An elder female and a younger male were diagnosed with brain tumors at the age of 10 and 5, respectively. Whole-genome sequencing analysis of the two patients’ blood, primary brain tumor tissues, and their parents’ blood samples was performed, which revealed that the two tumor samples harbored extremely high somatic mutation loads. Additionally, we observed pigmentation on the male patient’s skin. Conclusion Germline, biallelic mutation of MSH6—a gene related to DNA mismatch repair whose defect will result in constitutional mismatch repair deficiency (CMMRD)—is causal for the brain tumors of these two siblings.
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Affiliation(s)
- Di Wu
- Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, China
| | - Qingshan Chen
- Department of Neurosurgery, The Second People’s Hospital of Liaocheng of Shandong Province, Liaocheng, China
| | - Jian Chen
- Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, China
- Chinese Institute for Brain Research, Beijing, Research Unit of Medical Neurobiology, Chinese Academy of Medical Sciences, Beijing, China
- *Correspondence: Jian Chen,
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Gatto L, Franceschi E, Tosoni A, Nunno VD, Bartolini S, Brandes AA. Hypermutation as a potential predictive biomarker of immunotherapy efficacy in high-grade gliomas: a broken dream? Immunotherapy 2022; 14:799-813. [PMID: 35670093 DOI: 10.2217/imt-2021-0277] [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: 11/21/2022] Open
Abstract
A high tumor mutational burden and mismatch repair deficiency are observed in 'hypermutated' high-grade gliomas (HGGs); however, the molecular characterization of this distinct subtype and whether it predicts the response to immune checkpoint inhibitors (ICIs) are largely unknown. Pembrolizumab is a valid therapeutic option for the treatment of hypermutated cancers of diverse origin, but only a few clinical trials have explored the activity of ICIs in hypermutated HGGs. HGGs appear to differ from other cancers, likely due to the prevalence of subclonal versus clonal neoantigens, which are unable to elicit an immune response with ICIs. The main aim of this review is to summarize the current knowledge on hypermutation in HGGs, focusing on the broken promises of tumor mutational burden and mismatch repair deficiency as potential biomarkers of response to ICIs.
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Affiliation(s)
- Lidia Gatto
- Department of Oncology, AUSL Bologna, Bologna, Italy
| | - Enrico Franceschi
- Nervous System Medical Oncology Department, IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | - Alicia Tosoni
- Nervous System Medical Oncology Department, IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | | | - Stefania Bartolini
- Nervous System Medical Oncology Department, IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | - Alba Ariela Brandes
- Nervous System Medical Oncology Department, IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
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Kryklyva V, Brosens LAA, Marijnissen‐van Zanten MAJ, Ligtenberg MJL, Nagtegaal ID. Mismatch repair deficiency in early‐onset duodenal, ampullary, and pancreatic carcinomas is a strong indicator for a hereditary defect. J Pathol Clin Res 2022; 8:181-190. [PMID: 34873870 PMCID: PMC8822371 DOI: 10.1002/cjp2.252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 10/05/2021] [Accepted: 11/09/2021] [Indexed: 11/15/2022]
Abstract
Mismatch repair deficiency (dMMR) is a hallmark of Lynch syndrome (LS), but its prevalence in early‐onset (diagnosed under the age of 50 years) duodenal, ampullary, and pancreatic carcinomas (DC, AC, and PC, respectively) is largely unknown. We explored the prevalence of dMMR and the underlying molecular mechanisms in a retrospectively collected cohort of 90 early‐onset carcinomas of duodenal, ampullary, and pancreatic origin. dMMR was most prevalent in early‐onset DCs (47.8%); more than half of those were associated with hereditary cancer syndromes (LS or constitutional mismatch repair deficiency syndrome). All dMMR AC and PC were due to LS. Concordance of dMMR with underlying hereditary condition warrants ubiquitous dMMR testing in all early‐onset DC, AC, and PC.
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Affiliation(s)
- Valentyna Kryklyva
- Department of Pathology Radboud Institute for Molecular Life Sciences, Radboud University Medical Center Nijmegen The Netherlands
| | - Lodewijk AA Brosens
- Department of Pathology Radboud Institute for Molecular Life Sciences, Radboud University Medical Center Nijmegen The Netherlands
- Department of Pathology University Medical Center Utrecht, Utrecht University Utrecht The Netherlands
| | - Monica AJ Marijnissen‐van Zanten
- Department of Pathology Radboud Institute for Molecular Life Sciences, Radboud University Medical Center Nijmegen The Netherlands
| | - Marjolijn JL Ligtenberg
- Department of Pathology Radboud Institute for Molecular Life Sciences, Radboud University Medical Center Nijmegen The Netherlands
- Department of Human Genetics Radboud Institute for Molecular Life Sciences, Radboud University Medical Center Nijmegen The Netherlands
| | - Iris D Nagtegaal
- Department of Pathology Radboud Institute for Molecular Life Sciences, Radboud University Medical Center Nijmegen The Netherlands
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