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Pollack IF, Felker J, Frederico SC, Raphael I, Kohanbash G. Immunotherapy for pediatric low-grade gliomas. Childs Nerv Syst 2024:10.1007/s00381-024-06491-9. [PMID: 38884777 DOI: 10.1007/s00381-024-06491-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 06/01/2024] [Indexed: 06/18/2024]
Abstract
Pediatric low-grade gliomas (pLGGs) are the most common brain tumor types affecting children. Although gross-total resection remains the treatment of choice, many tumors are not amenable to complete removal, because they either involve midline structures, such as the optic chiasm or hypothalamus, and are not conducive to aggressive resection, or have diffuse biological features and blend with the surrounding brain. Historically, radiation therapy was used as the second-line option for disease control, but with the recognition that this often led to adverse long-term sequelae, particularly in young children, conventional chemotherapy assumed a greater role in initial therapy for unresectable tumors. A variety of agents demonstrated activity, but long-term disease control was suboptimal, with more than 50% of tumors exhibiting disease progression within 5 years. More recently, it has been recognized that a high percentage of these tumors in children exhibit constitutive activation of the mitogen-activated protein kinase (MAPK) pathway because of BRAF translocations or mutations, NFI mutations, or a host of other anomalies that converged on MAPK. This led to phase 1, 2, and 3 trials that explored the activity of blocking this signaling pathway, and the efficacy of this approach compared to conventional chemotherapy. Despite initial promise of these strategies, not all children tolerate this therapy, and many tumors resume growth once MAPK inhibition is stopped, raising concern that long-term and potentially life-long treatment will be required to maintain tumor control, even among responders. This observation has led to interest in other treatments, such as immunotherapy, that may delay or avoid the need for additional treatments. This chapter will summarize the place of immunotherapy in the current armamentarium for these tumors and discuss prior results and future options to improve disease control, with a focus on our prior efforts and experience in this field.
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Affiliation(s)
- Ian F Pollack
- Department of Neurosurgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
- Department of Neurosurgery, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA.
| | - James Felker
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Neurosurgery, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA
| | - Stephen C Frederico
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Neurosurgery, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA
| | - Itay Raphael
- Department of Neurosurgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Neurosurgery, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA
| | - Gary Kohanbash
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Neurosurgery, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA
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Malaina I, Martínez L, Montoya JM, Alonso S, Boyano MD, Asumendi A, Izu R, Sanchez-Diez A, Cancho-Galan G, M. de la Fuente I. A Universal Antigen-Ranking Method to Design Personalized Vaccines Targeting Neoantigens against Melanoma. LIFE (BASEL, SWITZERLAND) 2023; 13:life13010155. [PMID: 36676104 PMCID: PMC9867041 DOI: 10.3390/life13010155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 01/02/2023] [Accepted: 01/03/2023] [Indexed: 01/06/2023]
Abstract
Background: The main purpose of this article is to introduce a universal mathematics-aided vaccine design method against malignant melanoma based on neoantigens. The universal method can be adapted to the mutanome of each patient so that a specific candidate vaccine can be tailored for the corresponding patient. Methods: We extracted the 1134 most frequent mutations in melanoma, and we associated each of them to a vector with 10 components estimated with different bioinformatics tools, for which we found an aggregated value according to a set of weights, and then we ordered them in decreasing order of the scores. Results: We prepared a universal table of the most frequent mutations in melanoma ordered in decreasing order of viability to be used as candidate vaccines, so that the selection of a set of appropriate peptides for each particular patient can be easily and quickly implemented according to their specific mutanome and transcription profile. Conclusions: We have shown that the techniques that are commonly used for the design of personalized anti-tumor vaccines against malignant melanoma can be adapted for the design of universal rankings of neoantigens that originate personalized vaccines when the mutanome and transcription profile of specific patients is considered, with the consequent savings in time and money, shortening the design and production time.
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Affiliation(s)
- Iker Malaina
- Department of Mathematics, University of the Basque Country UPV/EHU, 48940 Bizkaia, Spain
- Correspondence:
| | - Luis Martínez
- Department of Mathematics, University of the Basque Country UPV/EHU, 48940 Bizkaia, Spain
| | - Juan Manuel Montoya
- Department of Mathematics, University of the Basque Country UPV/EHU, 48940 Bizkaia, Spain
- Faculty of Basic Sciences, University of Pamplona, Pamplona 6800, Colombia
| | - Santos Alonso
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country UPV/EHU, 48940 Bizkaia, Spain
| | - María Dolores Boyano
- Department of Cell Biology and Histology, University of the Basque Country UPV/EHU, 48940 Bizkaia, Spain
- Biocruces Bizkaia Health Research Institute, 48903 Bizkaia, Spain
| | - Aintzane Asumendi
- Department of Cell Biology and Histology, University of the Basque Country UPV/EHU, 48940 Bizkaia, Spain
- Biocruces Bizkaia Health Research Institute, 48903 Bizkaia, Spain
| | - Rosa Izu
- Biocruces Bizkaia Health Research Institute, 48903 Bizkaia, Spain
- Department of Dermatology, Basurto University Hospital, 48013 Bizkaia, Spain
| | - Ana Sanchez-Diez
- Biocruces Bizkaia Health Research Institute, 48903 Bizkaia, Spain
- Department of Dermatology, Basurto University Hospital, 48013 Bizkaia, Spain
| | - Goikoane Cancho-Galan
- Biocruces Bizkaia Health Research Institute, 48903 Bizkaia, Spain
- Department of Pathology, Basurto University Hospital, 48013 Bizkaia, Spain
| | - Ildefonso M. de la Fuente
- Department of Mathematics, University of the Basque Country UPV/EHU, 48940 Bizkaia, Spain
- CEBAS-CSIC Institute, Department of Nutrition, 30100 Murcia, Spain
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Yao L, Li J, Zhang X, Zhou L, Hu K. Downregulated ferroptosis-related gene SQLE facilitates temozolomide chemoresistance, and invasion and affects immune regulation in glioblastoma. CNS Neurosci Ther 2022; 28:2104-2115. [PMID: 35962621 PMCID: PMC9627366 DOI: 10.1111/cns.13945] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 07/29/2022] [Accepted: 08/05/2022] [Indexed: 02/06/2023] Open
Abstract
Chemoresistance in patients with glioblastoma multiforme (GBM) is a common reason hindering the success of treatment. Recently, ferroptosis has been reported to be associated with chemoresistance in different types of cancer, while the role of ferroptosis-related genes in GBM have not been fully elucidated. This study aimed to demonstrate the roles and mechanism of ferroptosis-related genes in chemoresistance and metastasis of GBM. First, two candidate genes, squalene epoxidase (SQLE) and FANCD2, were identified to be associated with ferroptosis-related chemoresistance in GBM from three temozolomide (TMZ) therapeutic datasets and one ferroptosis-related gene dataset. Then, comprehensive bio-informatics data from different databases testified that SQLE was significantly downregulated both in GBM tissue and cells and displayed a better prognosis in GBM. Clinical data identified lower expression of SQLE was significantly associated with WHO grade and 1p/19q codeletion. Moreover, through in vitro experiments, SQLE was confirmed to suppress ERK-mediated TMZ chemoresistance and metastasis of GBM cells. The KEGG analysis of SQLE-associated co-expressed genes indicated SQLE was potentially involved in the cell cycle. Furthermore, SQLE was found to have the most significant correlations with tumor-infiltrating lymphocytes and immunomodulators. These findings highlighted that SQLE could be a potential target and a biomarker for therapy and prognosis of patients with GBM.
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Affiliation(s)
- Lei Yao
- Department of Hepatobiliary SurgeryXiangya Hospital, Central South UniversityChangshaChina
| | - Juanni Li
- Department of PathologyXiangya Hospital, Central South UniversityChangshaChina,National Clinical Research Center for Geriatric DisordersXiangya Hospital, Central South UniversityChangshaChina
| | - Xiaofang Zhang
- Departments of Burn and PlasticNingxiang People's Hospital, Hunan University of Chinese MedicineChangshaChina
| | - Lei Zhou
- Department of AnesthesiologyThird Xiangya Hospital of Central South UniversityChangshaChina
| | - Kuan Hu
- Department of Hepatobiliary SurgeryXiangya Hospital, Central South UniversityChangshaChina
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Udoikono AD, Louis H, Eno EA, Agwamba EC, Unimuke TO, Igbalagh AT, Edet HO, Odey JO, Adeyinka AS. Reactive azo compounds as a potential chemotherapy drugs in the treatment of malignant glioblastoma (GBM): Experimental and theoretical studies. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY 2022. [DOI: 10.1016/j.jpap.2022.100116] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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