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Kurz SC, Zan E, Cordova C, Troxel AB, Barbaro M, Silverman JS, Snuderl M, Zagzag D, Kondziolka D, Golfinos JG, Chi AS, Sulman EP. Evaluation of the SSTR2-targeted Radiopharmaceutical 177Lu-DOTATATE and SSTR2-specific 68Ga-DOTATATE PET as Imaging Biomarker in Patients with Intracranial Meningioma. Clin Cancer Res 2024; 30:680-686. [PMID: 38048045 DOI: 10.1158/1078-0432.ccr-23-2533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/12/2023] [Accepted: 11/29/2023] [Indexed: 12/05/2023]
Abstract
PURPOSE There are no effective medical therapies for patients with meningioma who progress beyond surgical and radiotherapeutic interventions. Somatostatin receptor type 2 (SSTR2) represents a promising treatment target in meningiomas. In this multicenter, single-arm phase II clinical study (NCT03971461), the SSTR2-targeting radiopharmaceutical 177Lu-DOTATATE is evaluated for its feasibility, safety, and therapeutic efficacy in these patients. PATIENTS AND METHODS Adult patients with progressive intracranial meningiomas received 177Lu-DOTATATE at a dose of 7.4 GBq (200 mCi) every eight weeks for four cycles. 68Ga-DOTATATE PET-MRI was performed before and six months after the start of the treatment. The primary endpoint was progression-free survival (PFS) at 6 months (PFS-6). Secondary endpoints were safety and tolerability, overall survival (OS) at 12 months (OS-12), median PFS, and median OS. RESULTS Fourteen patients (female = 11, male = 3) with progressive meningiomas (WHO 1 = 3, 2 = 10, 3 = 1) were enrolled. Median age was 63.1 (range 49.7-78) years. All patients previously underwent tumor resection and at least one course of radiation. Treatment with 177Lu-DOTATATE was well tolerated. Seven patients (50%) achieved PFS-6. Best radiographic response by modified Macdonald criteria was stable disease (SD) in all seven patients. A >25% reduction in 68Ga-DOTATATE uptake (PET) was observed in five meningiomas and two patients. In one lesion, this corresponded to >50% reduction in bidirectional tumor measurements (MRI). CONCLUSIONS Treatment with 177Lu-DOTATATE was well tolerated. The predefined PFS-6 threshold was met in this interim analysis, thereby allowing this multicenter clinical trial to continue enrollment. 68Ga-DOTATATE PET may be a useful imaging biomarker to assess therapeutic outcome in patients with meningioma.
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Affiliation(s)
- Sylvia C Kurz
- Department of Neurology & Interdisciplinary Neuro-Oncology, University Hospitals Tübingen, Hertie Institute for Clinical Brain Research, Eberhard Karls University Tübingen, Germany
| | - Elcin Zan
- Department of Radiology, Weill Cornell Medicine, New York, New York
| | | | - Andrea B Troxel
- Department of Population Health, New York University Grossman School of Medicine, New York, New York
| | - Marissa Barbaro
- Brain and Spine Tumor Center, Laura and Isaac Perlmutter Cancer Center at NYU Langone Health, New York, New York
| | - Joshua S Silverman
- Brain and Spine Tumor Center, Laura and Isaac Perlmutter Cancer Center at NYU Langone Health, New York, New York
- Department of Radiation Oncology, New York University Grossman School of Medicine, New York, New York
| | - Matija Snuderl
- Brain and Spine Tumor Center, Laura and Isaac Perlmutter Cancer Center at NYU Langone Health, New York, New York
- Department of Pathology, New York University Grossman School of Medicine, New York, New York
| | - David Zagzag
- Brain and Spine Tumor Center, Laura and Isaac Perlmutter Cancer Center at NYU Langone Health, New York, New York
- Department of Pathology, New York University Grossman School of Medicine, New York, New York
| | - Douglas Kondziolka
- Brain and Spine Tumor Center, Laura and Isaac Perlmutter Cancer Center at NYU Langone Health, New York, New York
- Department of Neurosurgery, New York University Grossman School of Medicine, New York, New York
| | - John G Golfinos
- Brain and Spine Tumor Center, Laura and Isaac Perlmutter Cancer Center at NYU Langone Health, New York, New York
- Department of Neurosurgery, New York University Grossman School of Medicine, New York, New York
| | | | - Erik P Sulman
- Brain and Spine Tumor Center, Laura and Isaac Perlmutter Cancer Center at NYU Langone Health, New York, New York
- Department of Radiation Oncology, New York University Grossman School of Medicine, New York, New York
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Li Y, Drappatz J. Advances in the systemic therapy for recurrent meningiomas and the challenges ahead. Expert Rev Neurother 2023; 23:995-1004. [PMID: 37695700 DOI: 10.1080/14737175.2023.2254498] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 08/29/2023] [Indexed: 09/13/2023]
Abstract
INTRODUCTION Meningiomas represent the most common primary neoplasms of the central nervous system (CNS). 20% present with atypical (WHO grade II) or malignant (grade III) meningiomas, which show aggressive biologic behavior and high recurrence. Although surgical resection and radiation therapy are the primary treatment options for these tumors, there is a subgroup of patients who do not respond well to or are poor candidates for these approaches, leading to the exploration of systemic therapies as an alternative. AREAS COVERED The literature on different therapeutic groups of systemic drugs for recurrent meningiomas is reviewed, with a focus on the different molecular targets. Past and current ongoing clinical trials are also discussed. EXPERT OPINION To date, there is no recognized treatment that has demonstrated a substantial increase in progression-free or overall survival rates. Nonetheless, therapies targeting anti-VEGF have exhibited more encouraging results in general. The examination of genomic and epigenomic traits of meningiomas, along with the integration of molecular markers into the latest WHO tumor grading system, has provided valuable insights. This has opened avenues for exploring numerous intracellular and extracellular pathways, as well as mutations, that have been targeted in ongoing clinical trials.
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Affiliation(s)
- Yi Li
- Department of Neurology and Medicine, Division of Hematology and Oncology, Center for Neuro-Oncology, Hillman Cancer Center, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Jan Drappatz
- Department of Neurology and Medicine, Division of Hematology and Oncology, Center for Neuro-Oncology, Hillman Cancer Center, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
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Meningiomas and Somatostatin Analogs: A Systematic Scoping Review on Current Insights and Future Perspectives. Int J Mol Sci 2023; 24:ijms24054793. [PMID: 36902224 PMCID: PMC10003463 DOI: 10.3390/ijms24054793] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/17/2023] [Accepted: 02/25/2023] [Indexed: 03/06/2023] Open
Abstract
Meningioma is the most frequent brain tumor, and the incidence is ever-increasing. Though often benign and slow growth, recurrence rates are substantial and today's surgical and radiation-based treatment are not without complications. No drugs specific for meningiomas are hitherto approved and patients with inoperable or recurrent meningioma are left with few treatment options. Somatostatin receptors are previously detected in meningiomas and may inhibit growth when stimulated by somatostatin. Hence, somatostatin analogs could provide a targeted drug therapy. The aim of this study was to compile the current insights of somatostatin analogs for patients with meningioma. This paper adheres to the PRISMA extension for Scoping Reviews. A systematic search was conducted in the search databases PubMed, Embase via Ovid, and Web of Science. Seventeen papers adhered to the inclusion and exclusion criteria, and critical appraisal was conducted. The overall quality of evidence is low, as none of the studies were randomized or controlled. Various efficacy of somatostatin analogs is reported, and adverse effects are sparse. Due to the beneficial effects reported by some studies, somatostatin analogs may offer a novel last-option treatment for severely ill-patients. Nonetheless, only a controlled study, preferably a randomized clinical trial, could clarify the efficacy of somatostatin analogs.
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Miyagishima DF, Moliterno J, Claus E, Günel M. Hormone therapies in meningioma-where are we? J Neurooncol 2023; 161:297-308. [PMID: 36418843 PMCID: PMC10371392 DOI: 10.1007/s11060-022-04187-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/28/2022] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Meningiomas are associated with several gonadal steroid hormone-related risk factors and demonstrate a predominance in females. These associations led to investigations of the role that hormones may have on meningioma growth and development. While it is now accepted that most meningiomas express progesterone and somatostatin receptors, the conclusion for other receptors has been less definitive. METHODS We performed a review of what is known regarding the relationship between hormones and meningiomas in the published literature. Furthermore, we reviewed clinical trials related to hormonal agents in meningiomas using MEDLINE PubMed, Scopus, and the NIH clinical trials database. RESULTS We identify that all steroid-hormone trials lacked receptor identification or positive receptor status in the majority of patients. In contrast, four out of five studies involving somatostatin analogs used positive receptor status as part of the inclusion criteria. CONCLUSIONS Several clinical trials have recently been completed or are now underway using somatostatin analogs in combination with other therapies that appear promising, but a reevaluation of hormone-based monotherapy is warranted. Synthesizing this evidence, we clarify the remaining questions and present future directions for the study of the biological role and therapeutic potential of hormones in meningioma and discuss how the stratification of patients using features such as grade, receptor status, and somatic mutations, might be used for future trials to select patients most likely to benefit from specific therapies.
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Affiliation(s)
| | | | - Elizabeth Claus
- Department of Neurosurgery, Brigham and Women's Hospital, Boston, MA, USA.
| | - Murat Günel
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT, USA.
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AlAnsari GA, Bukhari N, Abdulkader MM, Alotain I, Taha MS. Malignant anaplastic meningioma in neurofibromatosis type 1 patient: a rare case report. AME Case Rep 2022; 6:36. [PMID: 36339910 PMCID: PMC9634465 DOI: 10.21037/acr-22-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 08/25/2022] [Indexed: 09/29/2023]
Abstract
BACKGROUND Meningiomas are usually associated with neurofibromatosis type 2 (NF-2), while gliomas are usually associated with neurofibromatosis type 1 (NF-1). NF-1 is an autosomal dominant genetic disorder associated with skin manifestations, bone conditions, and different types of benign and malignant tumors. Grade 3 anaplastic meningiomas are rare tumors with a poor prognosis. Systemic treatments in grade 3 meningiomas are experimental, with some reports suggestive of minimal clinical benefits. They are used occasionally for recurrent cases with no surgical or radiotherapy roles. In our case, we will focus the discussion on grade 3 anaplastic meningioma in a patient with NF-1, using chemotherapy for this aggressive, recurrent tumor. To our knowledge, this is the first case of NF-1 associated with malignant anaplastic meningioma in English literature. CASE DESCRIPTION In this case report, we present a 25-year-old left-handed female patient who fits the diagnostic criteria for NF-1. She presented with focal seizure and was diagnosed with grade 3 anaplastic meningioma, a highly aggressive tumor. She experienced a rapid recurrence after her initial surgery and eventually received multiple lines of treatments, including radiation and chemotherapy [temozolomide (TMZ)]. CONCLUSIONS Systemic therapy in grade 3 meningiomas is still experimental and may have a slight clinical benefit. As a result, further prospective, multicentric studies are needed to ascertain these outcomes. Patients should be included in prospective trials because of the poor prognosis and aggressive nature of grade 3 meningiomas. In addition, discovering specific molecular biomarkers will allow us to suggest an individualized treatment. This case suggests that the differential diagnosis of a mass in a patient with NF-1 should include tumors known to be associated with the syndrome as well as sporadic, unrelated neoplasms.
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Affiliation(s)
- Ghada A. AlAnsari
- Department of Neurosurgery, King Fahad Specialist Hospital, Dammam, Saudi Arabia
| | - Nedal Bukhari
- Department of Medical Oncology, King Fahad Specialist Hospital, Dammam, Saudi Arabia
- Department of Internal Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Marwah M. Abdulkader
- Department of Pathology and Laboratory Medicine, King Fahad Specialist Hospital, Dammam, Saudi Arabia
| | - Ibrahim Alotain
- Department of Radiation Oncology, King Fahad Specialist Hospital, Dammam, Saudi Arabia
| | - Mahmoud S. Taha
- Department of Neurosurgery, King Fahad Specialist Hospital, Dammam, Saudi Arabia
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Jensen LR, Maier AD, Lomstein A, Graillon T, Hrachova M, Bota D, Ruiz-Patiño A, Arrieta O, Cardona AF, Rudà R, Furtner J, Roeckle U, Clement P, Preusser M, Scheie D, Broholm H, Kristensen BW, Skjøth-Rasmussen J, Ziebell M, Munch TN, Fugleholm K, Walter MA, Mathiesen T, Mirian C. Somatostatin analogues in treatment-refractory meningioma: a systematic review with meta-analysis of individual patient data. Neurosurg Rev 2022; 45:3067-3081. [PMID: 35984552 DOI: 10.1007/s10143-022-01849-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 08/01/2022] [Accepted: 08/10/2022] [Indexed: 11/30/2022]
Abstract
Treatment-refractory meningiomas have a dismal prognosis and limited treatment options. Meningiomas express high-densities of somatostatin receptors (SSTR), thus potentially susceptible to antitumorigenic effects of somatostatin analogues (SSA). Evidence for SSA in meningiomas is scarce, and it is unclear if published literature would either (1) support wider use of SSA, if (2) more evidence is desirable, or if (3) available evidence is sufficient to discard SSA. We addressed the need for more evidence with a systematic review and meta-analysis. We performed an individual patient data (IPD) meta-analysis. Main outcomes were toxicity, best radiological response, progression-free survival, and overall survival. We applied multivariable logistic regression models to estimate the effect of SSA on the probability of obtaining radiological disease control. The predictive performance was evaluated using area under the curve and Brier scores. We included 16 studies and compiled IPD from 8/9 of all previous cohorts. Quality of evidence was overall ranked "very low." Stable disease was reported in 58% of patients as best radiological response. Per 100 mg increase in total SSA dosage, the odds ratios for obtaining radiological disease control was 1.42 (1.11 to 1.81, P = 0.005) and 1.44 (1.00 to 2.08, P = 0.05) for patients treated with SSA as monodrug therapy vs SSA in combination with everolimus, respectively. Low quality of evidence impeded exact quantification of treatment efficacy, and the association between response and treatment may represent reverse causality. Yet, the SSA treatment was well tolerated, and beneficial effect cannot be disqualified. A prospective trial without bias from inconsistent study designs is warranted to assess SSA therapy for well-defined meningioma subgroups.
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Affiliation(s)
- Lasse Rehné Jensen
- Department of Neurosurgery, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Andrea Daniela Maier
- Department of Neurosurgery, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Department of Pathology, Center of Diagnostic Investigation, Copenhagen University Hospital, Copenhagen, Denmark
| | - Atle Lomstein
- Department of Neurology, Aarhus University Hospital, Aarhus, Denmark
| | - Thomas Graillon
- Department of Neurosurgery, Hospital La Timone, Aix Marseille University, APHM, INSERM, MMG, Marseille, France
| | - Maya Hrachova
- Department of Neurosurgery, University of Oklahoma Health Science Center, Oklahoma, OK, USA
| | - Daniela Bota
- Department of Neurology, UC Irvine Medical Center, Orange, CA, USA
- Department of Neurological Surgery, UC Irvine Medical Center, Orange, CA, USA
| | | | - Oscar Arrieta
- Thoracic Oncology Unit, Instituto Nacional de Cancerología (INCaN), Mexico City, México
| | | | - Roberta Rudà
- Department of Neurology, Castelfranco Veneto/Treviso, Treviso, Italy
- Department of Neuro-Oncology, City of Health and Science Hospital and University of Turin, Turin, Italy
| | - Julia Furtner
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Ulrich Roeckle
- Department of Neurology and Brain Tumor Center, Cantonal Hospital Aarau, Aarau, Switzerland
| | - Paul Clement
- Department of Oncology, Leuven Cancer Institute, KU Leuven, Louvain, Belgium
| | - Matthias Preusser
- Division of Oncology, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - David Scheie
- Department of Pathology, Center of Diagnostic Investigation, Copenhagen University Hospital, Copenhagen, Denmark
| | - Helle Broholm
- Department of Pathology, Center of Diagnostic Investigation, Copenhagen University Hospital, Copenhagen, Denmark
| | - Bjarne Winther Kristensen
- Department of Clinical Neuroscience, Section for Neurosurgery, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Medicine and Biotech Research and Innovation Center (BRIC), University of Copenhagen, Copenhagen, Denmark
| | - Jane Skjøth-Rasmussen
- Department of Neurosurgery, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Morten Ziebell
- Department of Neurosurgery, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Tina Nørgaard Munch
- Department of Neurosurgery, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark
| | - Kåre Fugleholm
- Department of Neurosurgery, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Martin A Walter
- Department of Nuclear Medicine, University Hospital of Geneva, Geneva, Switzerland
- Gesundheitswissenschaften Und Medizin EN, University of Lucerne, Lucerne, Switzerland
| | - Tiit Mathiesen
- Department of Neurosurgery, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
- Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Christian Mirian
- Department of Neurosurgery, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
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Patel B, Desai R, Pugazenthi S, Butt OH, Huang J, Kim AH. Identification and Management of Aggressive Meningiomas. Front Oncol 2022; 12:851758. [PMID: 35402234 PMCID: PMC8984123 DOI: 10.3389/fonc.2022.851758] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 02/23/2022] [Indexed: 12/31/2022] Open
Abstract
Meningiomas are common primary central nervous system tumors derived from the meninges, with management most frequently entailing serial monitoring or a combination of surgery and/or radiation therapy. Although often considered benign lesions, meningiomas can not only be surgically inaccessible but also exhibit aggressive growth and recurrence. In such cases, adjuvant radiation and systemic therapy may be required for tumor control. In this review, we briefly describe the current WHO grading scale for meningioma and provide demonstrative cases of treatment-resistant meningiomas. We also summarize frequently observed molecular abnormalities and their correlation with intracranial location and recurrence rate. We then describe how genetic and epigenetic features might supplement or even replace histopathologic features for improved identification of aggressive lesions. Finally, we describe the role of surgery, radiotherapy, and ongoing systemic therapy as well as precision medicine clinical trials for the treatment of recurrent meningioma.
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Affiliation(s)
- Bhuvic Patel
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO, United States
| | - Rupen Desai
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO, United States
| | - Sangami Pugazenthi
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO, United States
| | - Omar H. Butt
- Department of Medicine, Division of Medical Oncology, Washington University School of Medicine, St. Louis, MO, United States,The Brain Tumor Center, Siteman Cancer Center, Washington University School of Medicine, St. Louis, MO, United States
| | - Jiayi Huang
- The Brain Tumor Center, Siteman Cancer Center, Washington University School of Medicine, St. Louis, MO, United States,Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, United States
| | - Albert H. Kim
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO, United States,The Brain Tumor Center, Siteman Cancer Center, Washington University School of Medicine, St. Louis, MO, United States,*Correspondence: Albert H. Kim,
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Graillon T, Tabouret E, Chinot O. Chemotherapy and targeted therapies for meningiomas: what is the evidence? Curr Opin Neurol 2021; 34:857-867. [PMID: 34629433 DOI: 10.1097/wco.0000000000001002] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
PURPOSE OF REVIEW Although most meningiomas are slow growing tumors mainly controlled by surgery with or without radiotherapy, aggressive meningiomas that fail these conventional treatments constitute a rare situation, a therapeutic challenge and an unmet need in neuro-oncology. RECENT FINDING Mutational landscape in recurrent high-grade meningiomas includes mainly NF2 mutation or 22q chromosomal deletion, whereas telomerase reverse transcriptase promoter, BAP-1 and CDK2NA mutations were also found in aggressive meningiomas. Pi3K-Akt-mTOR pathway is currently the most relevant intracellular signaling pathway target in meningiomas with preliminary clinical activity observed. Assessment of drug activity with progression free survival rate at 6 months is challenging in regard to meningioma growth rate heterogeneity, so that 3-dimensional growth rate before and during treatment could be considered in the future to selected new active drugs. SUMMARY Despite a low evidence level, some systemic therapies may be considered for patients with recurrent meningioma not amenable to further surgery or radiotherapy. In recurrent high-grade meningioma, everolimus-octreotide combination, bevacizumab, sunitinib and peptide receptor radionuclide therapy exhibit a signal of activity that may justify their clinical use. Despite a lack of clear signal of activity to date, immunotherapy may offer new perspectives in the treatment of these refractory tumors.
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Affiliation(s)
- Thomas Graillon
- Aix Marseille Univ, APHM, INSERM, MMG, UMR1251, La Timone Hospital, neurosurgery department Marseille, France
| | - Emeline Tabouret
- Aix-Marseille Univ, APHM, CNRS, INP, Inst Neurophysiopathol, La Timone Hospital, Neurooncology Department, Marseille, France
| | - Olivier Chinot
- Aix-Marseille Univ, APHM, CNRS, INP, Inst Neurophysiopathol, La Timone Hospital, Neurooncology Department, Marseille, France
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Somatostatin Receptors in Human Meningiomas-Clinicopathological Aspects. Cancers (Basel) 2021; 13:cancers13225704. [PMID: 34830858 PMCID: PMC8616360 DOI: 10.3390/cancers13225704] [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] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 11/09/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Meningioma diagnostics and grading are currently based on subjective histopathological criteria given by the 2016 World Health Organization (WHO) classification. However, biomarkers may provide a more objective approach to diagnostics. This study was designed to elucidate the diagnostic and prognostic value of somatostatin receptors (SSTRs) as biomarkers in meningiomas, which could help to identify patients with a higher risk of recurrence and provide more personalized treatment. We have confirmed, in a population of 162 patients, that SSTRs have diagnostic value and may aid in the differentiation between WHO grade 1 and grade 2 tumors. Furthermore, SSTR1, SSTR2 and SSTR5 were associated with higher malignancy grades. SSTR2 expression was found to be characteristic in meningiomas. To maintain objectiveness, we scoped for a digital evaluation of immunoreactivity. We aim to impact and motivate researchers to further investigations towards more objective criteria in meningioma diagnostics, which in turn will improve patient care. Abstract Meningiomas have high recurrence rates despite frequently benign histopathological appearances. Somatostatin receptors (SSTRs) may be reliable biomarkers that could identify patients with increased risk of recurrence. Even though SSTRs are previously detected in meningiomas, their associations to clinicopathological features remain unclear. The aim of this study was to investigate the diagnostic and prognostic value of SSTRs in a large series of human meningiomas with long follow-up data. Immunohistochemistry was used to measure the expression of SSTR1-SSTR5 in tissue samples from 162 patients diagnosed with intracranial meningiomas of World Health Organization (WHO) grade 1 or 2. Digital scoring and a manual staining index were applied to assess immunoreactivity. All SSTRs, except SSTR4, were upregulated in our series of meningiomas. SSTR1 (p = 0.036), SSTR2 (p = 0.036) and SSTR5 (p = 0.029) were associated with a higher malignancy grade. SSTR2 presented as the most reliable marker. Only SSTR2 was associated with time to recurrence (TTR) in univariate Cox regression analyses. Manual staining index was strongly correlated with digital scoring for all SSTRs (r > 0.65, p < 0.001). SSTRs, and especially SSTR2, are useful in the diagnostics of meningiomas, even though their prognostic value appears limited. Digital scoring is valuable to ensure reproducibility.
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Huntoon K, Toland AMS, Dahiya S. Meningioma: A Review of Clinicopathological and Molecular Aspects. Front Oncol 2020; 10:579599. [PMID: 33194703 PMCID: PMC7645220 DOI: 10.3389/fonc.2020.579599] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 09/22/2020] [Indexed: 12/19/2022] Open
Abstract
Meningiomas are the most the common primary brain tumors in adults, representing approximately a third of all intracranial neoplasms. They classically are found to be more common in females, with the exception of higher grades that have a predilection for males, and patients of older age. Meningiomas can also be seen as a spectrum of inherited syndromes such as neurofibromatosis 2 as well as ionizing radiation. In general, the 5-year survival for a WHO grade I meningioma exceeds 80%; however, survival is greatly reduced in anaplastic meningiomas. The standard of care for meningiomas in a surgically-accessible location is gross total resection. Radiation therapy is generally saved for atypical, anaplastic, recurrent, and surgically inaccessible benign meningiomas with a total dose of ~60 Gy. However, the method of radiation, regimen and timing is still evolving and is an area of active research with ongoing clinical trials. While there are currently no good adjuvant chemotherapeutic agents available, recent advances in the genomic and epigenomic landscape of meningiomas are being explored for potential targeted therapy.
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Affiliation(s)
- Kristin Huntoon
- Department of Neurological Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | | | - Sonika Dahiya
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, United States
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