1
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Xie MY, Liu LY. Response to correspondence on "Glioma is associated with exposure to legacy and alternative per- and polyfluoroalkyl substances". J Hazard Mater 2024; 471:134071. [PMID: 38555224 DOI: 10.1016/j.jhazmat.2024.134071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 03/16/2024] [Indexed: 04/02/2024]
Affiliation(s)
- Meng-Yi Xie
- Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 511443, China; State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, Kowloon 999077, Hong Kong SAR, China
| | - Liang-Ying Liu
- Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 511443, China.
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2
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Sobotka D, Herold A, Perkonigg M, Beer L, Bastati N, Sablatnig A, Ba-Ssalamah A, Langs G. Improving Vessel Segmentation with Multi-Task Learning and Auxiliary Data Available Only During Model Training. Comput Med Imaging Graph 2024; 114:102369. [PMID: 38518411 DOI: 10.1016/j.compmedimag.2024.102369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 03/13/2024] [Accepted: 03/13/2024] [Indexed: 03/24/2024]
Abstract
Liver vessel segmentation in magnetic resonance imaging data is important for the computational analysis of vascular remodeling, associated with a wide spectrum of diffuse liver diseases. Existing approaches rely on contrast enhanced imaging data, but the necessary dedicated imaging sequences are not uniformly acquired. Images without contrast enhancement are acquired more frequently, but vessel segmentation is challenging, and requires large-scale annotated data. We propose a multi-task learning framework to segment vessels in liver MRI without contrast. It exploits auxiliary contrast enhanced MRI data available only during training to reduce the need for annotated training examples. Our approach draws on paired native and contrast enhanced data with and without vessel annotations for model training. Results show that auxiliary data improves the accuracy of vessel segmentation, even if they are not available during inference. The advantage is most pronounced if only few annotations are available for training, since the feature representation benefits from the shared task structure. A validation of this approach to augment a model for brain tumor segmentation confirms its benefits across different domains. An auxiliary informative imaging modality can augment expert annotations even if it is only available during training.
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Affiliation(s)
- Daniel Sobotka
- Computational Imaging Research Lab, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Alexander Herold
- Division of General and Paediatric Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Matthias Perkonigg
- Computational Imaging Research Lab, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria; Department of Medical Statistics, Informatics and Health Economics, Medical University of Innsbruck, Innsbruck, Austria
| | - Lucian Beer
- Division of General and Paediatric Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Nina Bastati
- Division of General and Paediatric Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Alina Sablatnig
- Computational Imaging Research Lab, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Ahmed Ba-Ssalamah
- Division of General and Paediatric Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Georg Langs
- Computational Imaging Research Lab, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria.
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3
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Harris E. Use of Progestogen Tied to Higher Chance of Benign Brain Tumor. JAMA 2024; 331:1525-1526. [PMID: 38639983 DOI: 10.1001/jama.2024.5923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
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4
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Salous T, Adra N. Current outstanding challenges in germ cell tumors. Curr Opin Oncol 2024; 36:169-173. [PMID: 38573206 DOI: 10.1097/cco.0000000000001026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
PURPOSE OF REVIEW Despite the remarkable advances in the treatment of germ cell tumors (GCT), several challenges remain. This review aims to highlight some of these challenges and provide guidance on how to navigate through them. RECENT FINDINGS Patients with International Germ Cell Cancer Collaborative Group poor risk disease have worse prognosis and investigating novel therapeutic interventions are warranted in this population. Patients with brain metastases require a multidisciplinary approach by a group of clinicians experienced in the management of germ cell tumors. Patients with platinum refractory disease have poor prognosis and development of novel treatment options is urgently needed. Conventional tumor markers including alpha fetoprotein and human chorionic gonadotropin remain standard. Development of novel biomarkers to detect minimal residual disease or teratoma is needed. SUMMARY Management of patients with GCT requires a multidisciplinary approach. Patients should preferably be evaluated at tertiary care centers with expertise in the management of this disease.
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Affiliation(s)
- Tareq Salous
- Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, Indiana, USA
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Zarra F, Gandhi DN, Karki A, Chaurasia B. Letter: Chat-GPT on brain tumors: An examination of Artificial Intelligence/Machine Learning's ability to provide diagnoses and treatment plans for example neuro-oncology cases. Clin Neurol Neurosurg 2024; 240:108270. [PMID: 38604084 DOI: 10.1016/j.clineuro.2024.108270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 03/29/2024] [Indexed: 04/13/2024]
Affiliation(s)
- Francisco Zarra
- Department of Neurosurgery, University of Buenos Aires School of Medicine, Buenos Aires, Argentina.
| | | | - Aakriti Karki
- Department of Psychiatry, Jalalabad Ragib Rabeya Medical College Hospital, Bangladesh.
| | - Bipin Chaurasia
- Department of Neurosurgery, Neurosurgery Clinic, Birgunj, Nepal.
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6
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Viswanathan M, Yin L, Kurmi Y, Zu Z. Machine learning-based amide proton transfer imaging using partially synthetic training data. Magn Reson Med 2024; 91:1908-1922. [PMID: 38098340 PMCID: PMC10955622 DOI: 10.1002/mrm.29970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 10/30/2023] [Accepted: 11/26/2023] [Indexed: 12/20/2023]
Abstract
PURPOSE Machine learning (ML) has been increasingly used to quantify CEST effect. ML models are typically trained using either measured data or fully simulated data. However, training with measured data often lacks sufficient training data, whereas training with fully simulated data may introduce bias because of limited simulations pools. This study introduces a new platform that combines simulated and measured components to generate partially synthetic CEST data, and to evaluate its feasibility for training ML models to predict amide proton transfer (APT) effect. METHODS Partially synthetic CEST signals were created using an inverse summation of APT effects from simulations and the other components from measurements. Training data were generated by varying APT simulation parameters and applying scaling factors to adjust the measured components, achieving a balance between simulation flexibility and fidelity. First, tissue-mimicking CEST signals along with ground truth information were created using multiple-pool model simulations to validate this method. Second, an ML model was trained individually on partially synthetic data, in vivo data, and fully simulated data, to predict APT effect in rat brains bearing 9 L tumors. RESULTS Experiments on tissue-mimicking data suggest that the ML method using the partially synthetic data is accurate in predicting APT. In vivo experiments suggest that our method provides more accurate and robust prediction than the training using in vivo data and fully synthetic data. CONCLUSION Partially synthetic CEST data can address the challenges in conventional ML methods.
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Affiliation(s)
- Malvika Viswanathan
- Vanderbilt University Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, US
- Department of Biomedical Engineering, Vanderbilt University, Nashville, US
| | - Leqi Yin
- School of Engineering, Vanderbilt University, Nashville, US
| | - Yashwant Kurmi
- Vanderbilt University Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, US
- Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, US
| | - Zhongliang Zu
- Vanderbilt University Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, US
- Department of Biomedical Engineering, Vanderbilt University, Nashville, US
- Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, US
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7
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Umekita S, Kiyozawa D, Kohashi K, Kawatoko S, Sasaki T, Ihara E, Oki E, Nakamura M, Ogawa Y, Oda Y. Clinicopathological significance of microsatellite instability and immune escape mechanism in patients with gastric solid-type poorly differentiated adenocarcinoma. Gastric Cancer 2024; 27:484-494. [PMID: 38441781 DOI: 10.1007/s10120-024-01474-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 01/23/2024] [Indexed: 04/15/2024]
Abstract
BACKGROUND In gastric solid-type poorly differentiated adenocarcinoma (PDA), the role of microsatellite instability and immune escape mechanism remains unclear. The current study aimed to elucidate the clinical significance of mismatch repair (MMR) status, genome profile, C-X-C motif chemokine receptor 2 (CXCR2) expression, and myeloid-derived suppressor cell (MDSC) infiltration in solid-type PDA. METHODS In total, 102 primary solid-type PDA cases were retrieved, and classified into 46 deficient-MMR (dMMR) and 56 proficient-MMR (pMMR) cases based on immunohistochemistry (IHC) and polymerase chain reaction-based molecular testing results. The mRNA expression profiles (NanoString nCounter Assay) of stage-matched dMMR (n = 6) and pMMR (n = 6) cases were examined. The CXCR2 expression and MDSC infiltration (CD11b- and CD33-positive cells) were investigated via IHC in all solid-type PDA cases. RESULTS mRNA analysis revealed several differentially expressed genes and differences in biological behavior between the dMMR (n = 46) and pMMR (n = 56) groups. In the multivariate analysis, the dMMR status was significantly associated with a longer disease-free survival (hazard ratio = 5.152, p = 0.002) and overall survival (OS) (hazard ratio = 5.050, p = 0.005). CXCR2-high expression was significantly correlated with a shorter OS in the dMMR group (p = 0.018). A high infiltration of CD11b- and CD33-positive cells was significantly correlated with a shorter OS in the pMMR group (p = 0.022, 0.016, respectively). CONCLUSIONS dMMR status can be a useful prognostic predictor, and CXCR2 and MDSCs can be novel therapeutic targets in patients with solid-type PDA.
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Affiliation(s)
- Shinya Umekita
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Daisuke Kiyozawa
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Kenichi Kohashi
- Department of Pathology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Shinichiro Kawatoko
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Taisuke Sasaki
- Department of Medicine and Bioregulatory, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Eikichi Ihara
- Department of Medicine and Bioregulatory, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Eiji Oki
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masafumi Nakamura
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshihiro Ogawa
- Department of Medicine and Bioregulatory, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshinao Oda
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-Ku, Fukuoka, 812-8582, Japan.
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Gonçalves FG, Mahecha-Carvajal ME, Desa A, Yildiz H, Talbeya JK, Moreno LA, Viaene AN, Vossough A. Imaging of supratentorial intraventricular masses in children:a pictorial review- part 1. Neuroradiology 2024; 66:677-698. [PMID: 38466393 PMCID: PMC11031501 DOI: 10.1007/s00234-024-03314-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 02/12/2024] [Indexed: 03/13/2024]
Abstract
PURPOSE This article is the first in a two-part series designed to provide a comprehensive overview of the range of supratentorial intraventricular masses observed in children. Our primary objective is to discuss the diverse types of intraventricular masses that originate not only from cells within the choroid plexus but also from other sources. METHODS In this article, we review relevant epidemiological data, the current genetics/molecular classification as outlined in the fifth edition of the World Health Organization's Classification of tumours of the Central Nervous System and noteworthy imaging findings. We conduct an exhaustive analysis of primary choroid plexus tumours as well as other conditions such as choroid plexus hyperplasia, choroid plexus cyst, choroid plexus xanthogranuloma, atypical teratoid rhabdoid tumour, meningioma, arteriovenous malformation and metastasis. RESULTS We comprehensively evaluated each supratentorial intraventricular mass, providing an in-depth analysis of their unique clinical and histological characteristics. The fifth edition of the World Health Organization Classification of Tumours of the Central Nervous System introduces major modifications. These important changes could potentially have a profound impact on the management strategies and subsequent outcomes of these tumours. CONCLUSION Intraventricular masses in children can arise from various sources. Surgical intervention is key for certain supratentorial intraventricular masses in paediatric patients, with preoperative neuroimaging essential to decide the best treatment approach, surgical or otherwise, as some cases may not require surgery.
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Affiliation(s)
| | | | - Aishwary Desa
- Drexel University College of Medicine Philadelphia, Philadelphia, PA, USA
| | - Harun Yildiz
- Department of Radiology, Dortcelik Children's Hospital, Bursa, Turkey
| | | | - Luz Angela Moreno
- Pediatric Imaging, Department of Radiology, Fundación Hospital La Misericordia, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Angela N Viaene
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
- Pathology Department, Children's Hospital of Philadelphia, Philadelphia, USA
| | - Arastoo Vossough
- Radiology Department, Children's Hospital of Philadelphia, Philadelphia, USA
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
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9
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Gupta A, Lechpammer M, Brossier NM. Germline BRCA2 pathogenic variants in pediatric ganglioglioma: Case report and review of the literature. Childs Nerv Syst 2024; 40:1609-1612. [PMID: 38168858 DOI: 10.1007/s00381-023-06267-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 12/21/2023] [Indexed: 01/05/2024]
Abstract
BACKGROUND BRCA1 and BRCA2 are tumor suppressor genes associated with increased risk of breast and ovarian cancer in adulthood. Patients with germline pathogenic variants in these genes have also been reported to develop brain tumors, although it is unclear whether these syndromes are associated with significant increased risk of brain tumor formation. RESULTS Here, we report a case of a child with germline BRCA2 pathogenic variant presenting with a symptomatic ganglioglioma. To our knowledge, this is the first such patient to be reported. We discuss prior cases of brain tumors in BRCA1/2 patients and evidence for a potential role for BRCA1/2 pathogenic variants in brain tumor formation. CONCLUSION BRCA2 germline variants may increase the risk of developing some types of pediatric brain tumors, but further study is needed to determine its effect on low-grade glioma formation.
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Affiliation(s)
- Anya Gupta
- Departments of Pediatrics, Washington University School of Medicine, Box 8208, 660 South Euclid Avenue, St. Louis, MO, 63110, USA
| | | | - Nicole M Brossier
- Departments of Pediatrics, Washington University School of Medicine, Box 8208, 660 South Euclid Avenue, St. Louis, MO, 63110, USA.
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10
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Xu M, Zhou Y, Jin C, de Groot M, Alexander DC, Oxtoby NP, Hu Y, Jacob J. Expectation maximisation pseudo labels. Med Image Anal 2024; 94:103125. [PMID: 38428272 DOI: 10.1016/j.media.2024.103125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 02/18/2024] [Accepted: 02/26/2024] [Indexed: 03/03/2024]
Abstract
In this paper, we study pseudo-labelling. Pseudo-labelling employs raw inferences on unlabelled data as pseudo-labels for self-training. We elucidate the empirical successes of pseudo-labelling by establishing a link between this technique and the Expectation Maximisation algorithm. Through this, we realise that the original pseudo-labelling serves as an empirical estimation of its more comprehensive underlying formulation. Following this insight, we present a full generalisation of pseudo-labels under Bayes' theorem, termed Bayesian Pseudo Labels. Subsequently, we introduce a variational approach to generate these Bayesian Pseudo Labels, involving the learning of a threshold to automatically select high-quality pseudo labels. In the remainder of the paper, we showcase the applications of pseudo-labelling and its generalised form, Bayesian Pseudo-Labelling, in the semi-supervised segmentation of medical images. Specifically, we focus on: (1) 3D binary segmentation of lung vessels from CT volumes; (2) 2D multi-class segmentation of brain tumours from MRI volumes; (3) 3D binary segmentation of whole brain tumours from MRI volumes; and (4) 3D binary segmentation of prostate from MRI volumes. We further demonstrate that pseudo-labels can enhance the robustness of the learned representations. The code is released in the following GitHub repository: https://github.com/moucheng2017/EMSSL.
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Affiliation(s)
- Moucheng Xu
- UCL Centre for Medical Image Computing (CMIC), University College London, 90 High Holborn, London, WC1V 6LJ, UK; UCL Department of Medical Physics and Biomedical Engineering, University College London, Gower Street, London, WC1E 6BT, UK; Satsuma Lab, University College Londo, 90 High Holborn, WC1V 6LJ, UK.
| | - Yukun Zhou
- UCL Centre for Medical Image Computing (CMIC), University College London, 90 High Holborn, London, WC1V 6LJ, UK; UCL Department of Medical Physics and Biomedical Engineering, University College London, Gower Street, London, WC1E 6BT, UK
| | - Chen Jin
- UCL Centre for Medical Image Computing (CMIC), University College London, 90 High Holborn, London, WC1V 6LJ, UK; UCL Department of Computer Science, University College London, Gower Street, London, WC1E 6BT, UK
| | | | - Daniel C Alexander
- UCL Centre for Medical Image Computing (CMIC), University College London, 90 High Holborn, London, WC1V 6LJ, UK; UCL Department of Computer Science, University College London, Gower Street, London, WC1E 6BT, UK
| | - Neil P Oxtoby
- UCL Centre for Medical Image Computing (CMIC), University College London, 90 High Holborn, London, WC1V 6LJ, UK; UCL Department of Computer Science, University College London, Gower Street, London, WC1E 6BT, UK
| | - Yipeng Hu
- UCL Centre for Medical Image Computing (CMIC), University College London, 90 High Holborn, London, WC1V 6LJ, UK; UCL Department of Medical Physics and Biomedical Engineering, University College London, Gower Street, London, WC1E 6BT, UK; Wellcome/EPSRC Centre for Interventional and Surgical Sciences (WEISS), University College London, Charles Bell House, 1a 43-45 Foley Street, London, W1 W 7TS, UK
| | - Joseph Jacob
- UCL Centre for Medical Image Computing (CMIC), University College London, 90 High Holborn, London, WC1V 6LJ, UK; UCL Respiratory, University College London, 1st Floor, Rayne Institute, 5 University Street, London, WC1E 6JF, UK; Satsuma Lab, University College Londo, 90 High Holborn, WC1V 6LJ, UK
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11
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Zhou Y, Li H, Zhang Y, Zhao E, Huang C, Pan X, Shu F, Liu Z, Tang N, Li F, Liao W. Deubiquitinase USP4 suppresses antitumor immunity by inhibiting IRF3 activation and tumor cell-intrinsic interferon response in colorectal cancer. Cancer Lett 2024; 589:216836. [PMID: 38556105 DOI: 10.1016/j.canlet.2024.216836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 03/15/2024] [Accepted: 03/22/2024] [Indexed: 04/02/2024]
Abstract
Despite the approval of immune checkpoint blockade (ICB) therapy for various tumor types, its effectiveness is limited to only approximately 15% of patients with microsatellite instability-high (MSI-H) or mismatch repair deficiency (dMMR) colorectal cancer (CRC). Approximately 80%-85% of CRC patients have a microsatellite stability (MSS) phenotype, which features a rare T-cell infiltration. Thus, elucidating the mechanisms underlying resistance to ICB in patients with MSS CRC is imperative. In this study, we demonstrate that ubiquitin-specific peptidase 4 (USP4) is upregulated in MSS CRC tumors and negatively regulates the immune response against tumors in CRC. Additionally, USP4 represses the cellular interferon (IFN) response and antigen presentation and impairs PRR signaling-mediated cell death. Mechanistically, USP4 impedes the nuclear localization of interferon regulator Factor 3 (IRF3) by deubiquitinating the K63-polyubiquitin chain of TRAF6 and IRF3. Knockdown of USP4 enhances the infiltration of T cells in CRC tumors and overcomes ICB resistance in an MC38 syngeneic mouse model. Moreover, published datasets revealed that patients showing higher USP4 expression exhibited decreased responsiveness to anti-PD-L1 therapy. These findings highlight an essential role of USP4 in the suppression of antitumor immunity in CRC.
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Affiliation(s)
- Yi Zhou
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China
| | - Huali Li
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China
| | - Yaxin Zhang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China
| | - Enen Zhao
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China
| | - Chengmei Huang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China
| | - Xingyan Pan
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China
| | - Feng Shu
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China
| | - Zhihao Liu
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China
| | - Na Tang
- Department of Pathology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.
| | - Fengtian Li
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China; School of Biosciences and Technology, Chengdu Medical College, Chengdu, 610500, Sichuan, China.
| | - Wenting Liao
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China.
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12
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Makino K, Ishii T, Takeda H, Saito Y, Fujiwara Y, Fujimoto M, Ito T, Wakama S, Kumagai K, Munekage F, Horie H, Tomofuji K, Oshima Y, Uebayashi EY, Kawai T, Ogiso S, Fukumitsu K, Takai A, Seno H, Hatano E. Integrated analyses of the genetic and clinicopathological features of cholangiolocarcinoma: cholangiolocarcinoma may be characterized by mismatch-repair deficiency. J Pathol 2024; 263:32-46. [PMID: 38362598 DOI: 10.1002/path.6257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 10/25/2023] [Accepted: 12/21/2023] [Indexed: 02/17/2024]
Abstract
Cholangiolocarcinoma (CLC) is a primary liver carcinoma that resembles the canals of Hering and that has been reported to be associated with stem cell features. Due to its rarity, the nature of CLC remains unclear, and its pathological classification remains controversial. To clarify the positioning of CLC in primary liver cancers and identify characteristics that could distinguish CLC from other liver cancers, we performed integrated analyses using whole-exome sequencing (WES), immunohistochemistry, and a retrospective review of clinical information on eight CLC cases and two cases of recurrent CLC. WES demonstrated that CLC includes IDH1 and BAP1 mutations, which are characteristic of intrahepatic cholangiocarcinoma (iCCA). A mutational signature analysis showed a pattern similar to that of iCCA, which was different from that of hepatocellular carcinoma (HCC). CLC cells, including CK7, CK19, and EpCAM, were positive for cholangiocytic differentiation markers. However, the hepatocytic differentiation marker AFP and stem cell marker SALL4 were completely negative. The immunostaining patterns of CLC with CD56 and epithelial membrane antigen were similar to those of the noncancerous bile ductules. In contrast, mutational signature cluster analyses revealed that CLC formed a cluster associated with mismatch-repair deficiency (dMMR), which was separate from iCCA. Therefore, to evaluate MMR status, we performed immunostaining of four MMR proteins (PMS2, MSH6, MLH1, and MSH2) and detected dMMR in almost all CLCs. In conclusion, CLC had highly similar characteristics to iCCA but not to HCC. CLC can be categorized as a subtype of iCCA. In contrast, CLC has characteristics of dMMR tumors that are not found in iCCA, suggesting that it should be treated distinctly from iCCA. © 2024 The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Kenta Makino
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takamichi Ishii
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Haruhiko Takeda
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yoichi Saito
- Laboratory of Bioengineering, Faculty of Advanced Science and Technology, Kumamoto University, Kumamoto, Japan
| | - Yukio Fujiwara
- Department of Cell Pathology, Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Masakazu Fujimoto
- Department of Diagnostic Pathology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takashi Ito
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Satoshi Wakama
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ken Kumagai
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Fumiaki Munekage
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroshi Horie
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Katsuhiro Tomofuji
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yu Oshima
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | | | - Takayuki Kawai
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Department of Surgery, Medical Research Institute Kitano Hospital, Osaka, Japan
| | - Satoshi Ogiso
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ken Fukumitsu
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Atsushi Takai
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroshi Seno
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Etsuro Hatano
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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13
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Zhou H, Watson M, Bernadt CT, Lin SS, Lin CY, Ritter JH, Wein A, Mahler S, Rawal S, Govindan R, Yang C, Cote RJ. AI-guided histopathology predicts brain metastasis in lung cancer patients. J Pathol 2024; 263:89-98. [PMID: 38433721 DOI: 10.1002/path.6263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 11/30/2023] [Accepted: 01/16/2024] [Indexed: 03/05/2024]
Abstract
Brain metastases can occur in nearly half of patients with early and locally advanced (stage I-III) non-small cell lung cancer (NSCLC). There are no reliable histopathologic or molecular means to identify those who are likely to develop brain metastases. We sought to determine if deep learning (DL) could be applied to routine H&E-stained primary tumor tissue sections from stage I-III NSCLC patients to predict the development of brain metastasis. Diagnostic slides from 158 patients with stage I-III NSCLC followed for at least 5 years for the development of brain metastases (Met+, 65 patients) versus no progression (Met-, 93 patients) were subjected to whole-slide imaging. Three separate iterations were performed by first selecting 118 cases (45 Met+, 73 Met-) to train and validate the DL algorithm, while 40 separate cases (20 Met+, 20 Met-) were used as the test set. The DL algorithm results were compared to a blinded review by four expert pathologists. The DL-based algorithm was able to distinguish the eventual development of brain metastases with an accuracy of 87% (p < 0.0001) compared with an average of 57.3% by the four pathologists and appears to be particularly useful in predicting brain metastases in stage I patients. The DL algorithm appears to focus on a complex set of histologic features. DL-based algorithms using routine H&E-stained slides may identify patients who are likely to develop brain metastases from those who will remain disease free over extended (>5 year) follow-up and may thus be spared systemic therapy. © 2024 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Haowen Zhou
- Department of Electrical Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Mark Watson
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Cory T Bernadt
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Steven Siyu Lin
- Department of Electrical Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Chieh-Yu Lin
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Jon H Ritter
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Alexander Wein
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Simon Mahler
- Department of Electrical Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Sid Rawal
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Ramaswamy Govindan
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - Changhuei Yang
- Department of Electrical Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Richard J Cote
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
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14
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Modi N, Munshi A, Priya A, Chauhan S, Dey P. Cytological diagnosis of pineoblastoma in cerebrospinal fluid. Cytopathology 2024; 35:421-424. [PMID: 38308391 DOI: 10.1111/cyt.13364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/13/2024] [Accepted: 01/23/2024] [Indexed: 02/04/2024]
Abstract
A rare case of pineoblastoma on cerebrospinal fluid cytology was reported in a 15-year-old girl. In the current paper, a rare case of pienoblastoma on CSF cytology has been described.
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Affiliation(s)
- Natasha Modi
- National Institute of Medical Sciences, Jaipur, Rajasthan, India
| | - Avinash Munshi
- National Institute of Medical Sciences, Jaipur, Rajasthan, India
| | - Anu Priya
- Department of Pathology, National Institute of Medical Sciences, Jaipur, Rajasthan, India
| | - Sima Chauhan
- National Institute of Medical Sciences, Jaipur, Rajasthan, India
| | - Pranab Dey
- National Institute of Medical Sciences, Jaipur, Rajasthan, India
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15
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Butorac D, Potkonjak AM, Kuharić J, Vujić G. Brain metastasis as a first clinical presentation of endometrial cancer: A case report. Eur J Obstet Gynecol Reprod Biol 2024; 296:380-381. [PMID: 38480073 DOI: 10.1016/j.ejogrb.2024.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 03/07/2024] [Indexed: 04/19/2024]
Affiliation(s)
- Dražan Butorac
- Department of Obstetrics and Gynecology, Sestre milosrdnice University Hospital Center, Vinogradska 29, Zagreb, Croatia
| | - Ana-Meyra Potkonjak
- Department of Obstetrics and Gynecology, Sestre milosrdnice University Hospital Center, Vinogradska 29, Zagreb, Croatia.
| | - Josip Kuharić
- Department of Obstetrics and Gynecology, University Hospital Centre Zagreb, Kišpatićeva 12, Zagreb, Croatia
| | - Goran Vujić
- Department of Obstetrics and Gynecology, University Hospital Centre Zagreb, Kišpatićeva 12, Zagreb, Croatia; School of Medicine, University of Zagreb, Šalata 3, Zagreb, Croatia
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16
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Abdulsalam AJ, Kara M, Özçakar L. Elevating the findings by substituting in "ISarcoPRM". J Neurooncol 2024; 168:185-186. [PMID: 38563853 DOI: 10.1007/s11060-024-04653-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 03/18/2024] [Indexed: 04/04/2024]
Affiliation(s)
- Ahmad Jasem Abdulsalam
- Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey.
- Department of Physical Medicine and Rehabilitation, Mubarak Alkabeer Hospital, Jabriya, Kuwait.
| | - Murat Kara
- Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey
| | - Levent Özçakar
- Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey
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17
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Feychting M, Schüz J, Toledano MB, Vermeulen R, Auvinen A, Poulsen AH, Deltour I, Smith RB, Heller J, Kromhout H, Huss A, Johansen C, Tettamanti G, Elliott P. Response to the Letter to the Editor regarding "Mobile phone use and brain tumour risk - COSMOS, a prospective cohort study". Environ Int 2024; 187:108664. [PMID: 38663236 DOI: 10.1016/j.envint.2024.108664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 04/15/2024] [Indexed: 05/19/2024]
Affiliation(s)
- Maria Feychting
- Unit of Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
| | - Joachim Schüz
- International Agency for Research on Cancer (IARC/WHO), Environment and Lifestyle Epidemiology Branch, Lyon, France
| | - Mireille B Toledano
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK; Medical Research Council (MRC) Centre for Environment and Health, School of Public Health, Imperial College London, London, UK; National Institute for Health Research (NIHR) Health Protection Research Unit in Chemical and Radiation Threats and Hazards, Imperial College London, London, UK; Mohn Centre for Children's Health and Wellbeing, School of Public Health, Imperial College London, London, UK
| | - Roel Vermeulen
- Utrecht University, Institute for Risk Assessment Sciences, Utrecht, The Netherlands; University Medical Center Utrecht, Julius Center, The Netherlands
| | - Anssi Auvinen
- STUK - Radiation and Nuclear Safety Authority, Environmental Surveillance, Vantaa, Finland; Tampere University, Faculty of Social Sciences/Health Sciences, Tampere, Finland
| | | | - Isabelle Deltour
- International Agency for Research on Cancer (IARC/WHO), Environment and Lifestyle Epidemiology Branch, Lyon, France
| | - Rachel B Smith
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK; Medical Research Council (MRC) Centre for Environment and Health, School of Public Health, Imperial College London, London, UK; National Institute for Health Research (NIHR) Health Protection Research Unit in Chemical and Radiation Threats and Hazards, Imperial College London, London, UK; Mohn Centre for Children's Health and Wellbeing, School of Public Health, Imperial College London, London, UK
| | - Joel Heller
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Hans Kromhout
- Utrecht University, Institute for Risk Assessment Sciences, Utrecht, The Netherlands
| | - Anke Huss
- Utrecht University, Institute for Risk Assessment Sciences, Utrecht, The Netherlands
| | - Christoffer Johansen
- CASTLE Cancer Late Effect Research Oncology Clinic, Center for Surgery and Cancer, Rigshospitalet, Copenhagen, Denmark
| | - Giorgio Tettamanti
- Unit of Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Paul Elliott
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK; Medical Research Council (MRC) Centre for Environment and Health, School of Public Health, Imperial College London, London, UK; National Institute for Health Research (NIHR) Health Protection Research Unit in Chemical and Radiation Threats and Hazards, Imperial College London, London, UK; NIHR Imperial Biomedical Research Centre, Imperial College London, London, UK.
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18
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Vink-Börger E, Dabir PD, Krekels J, van Kouwen MCA, Ligtenberg MJL, van der Post RS, Nagtegaal ID. Deficient mismatch repair screening of advanced adenomas in the population screening program for colorectal cancer is not effective. Histopathology 2024; 84:1056-1060. [PMID: 38275207 DOI: 10.1111/his.15150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/19/2023] [Accepted: 01/13/2024] [Indexed: 01/27/2024]
Abstract
AIM Currently, screening of colorectal cancers (CRC) by assessing mismatch repair deficiency (dMMR) or microsatellite instability (MSI) is used to identify Lynch syndrome (LS) patients. Advanced adenomas are considered immediate precursor lesions of CRC. In this study we investigate the relevance of screening of advanced adenomas for LS in population screening. METHODS AND RESULTS Advanced adenomas (n = 1572) were selected from the Dutch colorectal cancer population screening programme, based on one or more of the criteria: tubulovillous (n = 848, 54%) or villous adenoma (n = 118, 7.5%), diameter ≥ 1 cm (n = 1286, 82%) and/or high-grade dysplasia (n = 176, 11%). In 86 cases (5%), all three criteria were fulfilled at the same time. MMR-IHC and/or MSI analyses were performed on all cases. Only five advanced adenomas (0.3%) showed dMMR and MSI, including two cases with hypermethylation. In at least two patients a germline event was suspected based on allelic frequencies. No pathogenic explanation was found in the last case. CONCLUSION Timely testing of precursor lesions would be preferable to detect new LS patients before CRC development. However, standard assessment of dMMR of advanced adenomas from the population screening is not effective.
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Affiliation(s)
- Elisa Vink-Börger
- Department of Pathology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Parag D Dabir
- Institute of Pathology, Randers Regional Hospital, Randers, Denmark
| | - Joyce Krekels
- Department of Pathology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Mariëtte C A van Kouwen
- Department of Gastroenterology and Hepatology, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Marjolijn J L 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
| | - Rachel S van der Post
- Department of Pathology, 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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19
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Daungsupawong H, Wiwanitkit V. Chat-GPT on brain tumors: Comment. Clin Neurol Neurosurg 2024; 240:108257. [PMID: 38614059 DOI: 10.1016/j.clineuro.2024.108257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 03/23/2024] [Indexed: 04/15/2024]
Affiliation(s)
| | - Viroj Wiwanitkit
- Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, India
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20
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Li YD, Gao MY, Wang M, Gao F, Liu YQ, Du KP, Li S, Zhang HJ, Yao YF, Zhou ZG. [Analysis of the safety, accuracy, and factors influencing bleeding complications in CT-guided puncture biopsy of brain occupying lesions]. Zhonghua Yi Xue Za Zhi 2024; 104:1403-1409. [PMID: 38644291 DOI: 10.3760/cma.j.cn112137-20231025-00891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Objective: To investigate the safety and accuracy of CT-guided intracranial puncture biopsy and the possible influencing factors of postoperative bleeding complications. Methods: A case series study. A retrospective analysis was conducted on 101 patients who underwent CT-guided intracranial puncture biopsy at the First Affiliated Hospital of Zhengzhou University from January 2017 to December 2021. The basic data of patients and the safety and accuracy of CT-guided intracranial puncture biopsy were analyzed statistically. Univariate and multivariate logistic regression analysis were used to screen the influencing factors of bleeding complications in CT-guided intracranial puncture biopsy, and the bleeding complications in glioma subgroup were analyzed. Results: Among the 101 patients, 53 were males and 48 were females, aged (53.7±17.2) years. The average diameter of intracranial lesions was (3.5±1.4) cm, while the vertical distance from the lesion to the meninges was (2.4±1.7) cm. The needle's intracranial depth reached (3.2±1.8) cm, with adjustments averaging (3±1) occurrences and an average procedural duration of (40.2±12.9) minutes. Pathological diagnoses included glioma (36 cases), gliosis (3 cases), lymphoma (32 cases), metastatic tumors (7 cases), inflammatory lesions (13 cases), and 10 indeterminate cases. The positive rate of puncture pathology was 90.1% (91/101), and the diagnostic coincidence rate was 94.0% (78/83). The incidence of bleeding complications in CT-guided intracranial puncture biopsy was 26.7% (27/101), of which 23 cases had small intratoma or needle path bleeding, 4 cases had massive bleeding, and 2 cases died. The patients were divided into bleeding group (n=27) and no bleeding group (n=74), according to the presence or absence of bleeding. The results of univariate logistic regression analysis showed that thrombin time≥15 s and the number of needle adjustment were the factors affecting the occurrence of bleeding complications (both P<0.05), and the results of multivariate logistic regression showed that thrombin time≥15 s was the related factor for bleeding. Patients with thrombin time≥15 s had a 3.045 times higher risk of bleeding than those with thrombin time<15 s (OR=3.045,95%CI:1.189-7.799,P=0.020). Among the 101 patients, 36 cases of midbrain glioma were divided into low-grade glioma group (n=11) and high-grade glioma group (n=25) according to the pathological grade. Subgroup analysis showed that the risk of bleeding for high-grade gliomas was 9.231 times higher than that for low-grade gliomas (OR=9.231,95%CI:1.023-83.331,P=0.031). Conclusions: CT-guided intracranial puncture biopsy is safe and feasible with high accuracy. Complication rates are associated with thrombin time≥15 s, especially high-grade glioma, which increases the risk of postoperative bleeding.
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Affiliation(s)
- Y D Li
- Department of Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - M Y Gao
- Department of Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - M Wang
- Department of Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - F Gao
- Department of Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Y Q Liu
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - K P Du
- Department of Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - S Li
- Department of Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - H J Zhang
- Department of Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Y F Yao
- Department of Intervention, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Z G Zhou
- Department of Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
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21
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Calisaya-Madariaga IG, Diestra MA, Lezama MA, Anampa SH, Acurio K, Pacheco-Barrios N. Letter to the editor: natural history and neuro-oncological approach in spinal gangliogliomas: a systematic review. Neurosurg Rev 2024; 47:173. [PMID: 38641764 DOI: 10.1007/s10143-024-02399-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 04/02/2024] [Accepted: 04/08/2024] [Indexed: 04/21/2024]
Affiliation(s)
| | - Mijaíl Abregú Diestra
- School of Medicine, Cayetano Heredia Peruvian University, Lima, Peru
- MedPass Project, Lima, Peru
| | - Mijaíl Arizabal Lezama
- School of Medicine, Cayetano Heredia Peruvian University, Lima, Peru
- MedPass Project, Lima, Peru
| | - Samhara Huayta Anampa
- School of Medicine, Cayetano Heredia Peruvian University, Lima, Peru
- MedPass Project, Lima, Peru
| | - Karlos Acurio
- School of Medicine, Cayetano Heredia Peruvian University, Lima, Peru
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22
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Dağdelen D, Zincir H. Effects of dependent care theory-based post-surgical home care intervention on self-care, symptoms, and caregiver burden in patients with primary brain tumor and their caregivers: a randomized controlled trial. Support Care Cancer 2024; 32:296. [PMID: 38635060 PMCID: PMC11026272 DOI: 10.1007/s00520-024-08488-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 04/07/2024] [Indexed: 04/19/2024]
Abstract
PURPOSE This study aimed to examine the effect of dependent care theory-based post-surgical home care intervention on self-care, symptoms, and caregiver burden in primary brain tumor patients and their caregivers. METHODS A parallel-group randomized controlled trial was conducted with patients who underwent surgery for a primary brain tumor between March 2019 and January 2020 in a tertiary hospital and with caregivers who cared for them at home. Eligible patients and caregivers were determined by block randomization. Outcome measures included validated measures of self-care agency (Self-Care Agency Scale), symptoms and interference by symptoms (MD Anderson Symptom Inventory Brain Tumor-Turkish Form), and caregiver burden (Caregiver Burden Scale). Two-way analysis of variance was used in repeated measurements from general linear models compared to scale scores. RESULTS Self-care agency was significantly higher in the intervention group than in the control group in the first and sixth months after surgery (p < 0.05). The severity of the patients' emotional, focal neurologic, and cognitive symptoms and interference by symptoms were significantly lower in the intervention group than in the control group (p < 0.05). Caregiver burden was significantly lower in the intervention group in the first, third, and sixth months after surgery (p < 0.05). CONCLUSION Dependent care theory-based post-surgical home care intervention increased patients' self-care and reduced symptoms and their effects. It also reduced the caregiver burden. Dependent care theory can guide the nursing practices of nurses who provide institutional and/or home care services to patients with chronic diseases and their caregivers. TRIAL REGISTRATION NCT05328739 on April 14, 2022 (retrospectively registered).
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Affiliation(s)
- Derya Dağdelen
- Department of Public Health Nursing, Faculty of Health Sciences, Erciyes University, 38280, Kayseri, Turkey.
| | - Handan Zincir
- Department of Public Health Nursing, Faculty of Health Sciences, Erciyes University, 38280, Kayseri, Turkey
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23
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Provance OK, Oria VO, Tran TT, Caulfield JI, Zito CR, Aguirre-Ducler A, Schalper KA, Kluger HM, Jilaveanu LB. Vascular mimicry as a facilitator of melanoma brain metastasis. Cell Mol Life Sci 2024; 81:188. [PMID: 38635031 PMCID: PMC11026261 DOI: 10.1007/s00018-024-05217-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 03/20/2024] [Accepted: 03/21/2024] [Indexed: 04/19/2024]
Abstract
Melanoma has the highest propensity among solid tumors to metastasize to the brain. Melanoma brain metastases (MBM) are a leading cause of death in melanoma and affect 40-60% of patients with late-stage disease. Therefore, uncovering the molecular mechanisms behind MBM is necessary to enhance therapeutic interventions. Vascular mimicry (VM) is a form of neovascularization linked to invasion, increased risk of metastasis, and poor prognosis in many tumor types, but its significance in MBM remains poorly understood. We found that VM density is elevated in MBM compared to paired extracranial specimens and is associated with tumor volume and CNS edema. In addition, our studies indicate a relevant role of YAP and TAZ, two transcriptional co-factors scarcely studied in melanoma, in tumor cell-vasculogenesis and in brain metastasis. We recently demonstrated activation of the Hippo tumor suppressor pathway and increased degradation of its downstream targets YAP and TAZ in a metastasis impaired cell line model. In the current study we establish the utility of anti-YAP/TAZ therapy in mouse models of metastatic melanoma whereby treatment effectively inhibits VM and prolongs survival of mice with MBM. The data presented herein suggest that VM may be an important and targetable mechanism in melanoma and that VM inhibition might be useful for treating MBM, an area of high unmet clinical need, thus having important implications for future treatment regimens for these patients.
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Affiliation(s)
- Olivia K Provance
- Department of Medicine, Section of Medical Oncology, Yale University School of Medicine, 333 Cedar Street, SHM234E, New Haven, CT, 06520, USA
| | - Victor O Oria
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, 2200, Copenhagen, Denmark
| | - Thuy T Tran
- Department of Medicine, Section of Medical Oncology, Yale University School of Medicine, 333 Cedar Street, SHM234E, New Haven, CT, 06520, USA
| | - Jasmine I Caulfield
- Department of Medicine, Section of Medical Oncology, Yale University School of Medicine, 333 Cedar Street, SHM234E, New Haven, CT, 06520, USA
| | - Christopher R Zito
- Department of Medicine, Section of Medical Oncology, Yale University School of Medicine, 333 Cedar Street, SHM234E, New Haven, CT, 06520, USA
- Department of Biology, School of Arts, Sciences, Business, and Education, University of Saint Joseph, West Hartford, CT, USA
| | - Adam Aguirre-Ducler
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Kurt A Schalper
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - Harriet M Kluger
- Department of Medicine, Section of Medical Oncology, Yale University School of Medicine, 333 Cedar Street, SHM234E, New Haven, CT, 06520, USA
| | - Lucia B Jilaveanu
- Department of Medicine, Section of Medical Oncology, Yale University School of Medicine, 333 Cedar Street, SHM234E, New Haven, CT, 06520, USA.
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24
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Zhang W, Chen L, Liu J, Chen B, Shi H, Chen H, Qi H, Wu Z, Mao X, Wang X, Huang Y, Li J, Yu Z, Zhong M, Wang T, Li Q. Inhibition of autophagy-related protein 7 enhances anti-tumor immune response and improves efficacy of immune checkpoint blockade in microsatellite instability colorectal cancer. J Exp Clin Cancer Res 2024; 43:114. [PMID: 38627815 PMCID: PMC11020677 DOI: 10.1186/s13046-024-03023-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 03/22/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND The efficacy of anti-PD-1 therapy is primarily hindered by the limited T-cell immune response rate and immune evasion capacity of tumor cells. Autophagy-related protein 7 (ATG7) plays an important role in autophagy and it has been linked to cancer. However, the role of ATG7 in the effect of immune checkpoint blockade (ICB) treatment on high microsatellite instability (MSI-H)/mismatch repair deficiency (dMMR) CRC is still poorly understood. METHODS In this study, patients from the cancer genome altas (TCGA) COAD/READ cohorts were used to investigate the biological mechanism driving ATG7 development. Several assays were conducted including the colony formation, cell viability, qRT-PCR, western blot, immunofluorescence, flow cytometry, ELISA, immunohistochemistry staining and in vivo tumorigenicity tests. RESULTS We found that ATG7 plays a crucial role in MSI-H CRC. Its knockdown decreased tumor growth and caused an infiltration of CD8+ T effector cells in vivo. ATG7 inhibition restored surface major histocompatibility complex I (MHC-I) levels, causing improved antigen presentation and anti-tumor T cell response by activating reactive oxygen species (ROS)/NF-κB pathway. Meanwhile, ATG7 inhibition also suppressed cholesterol accumulation and augmentation of anti-tumor immune responses. Combining ATG7 inhibition and statins improved the therapeutic benefit of anti-PD-1 in MSI-H CRC. Importantly, CRC patients with high expression of both ATG7 and recombinant 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGCR) experienced worse prognosis compared to those with low ATG7 and HMGCR expression. CONCLUSIONS Inhibition of ATG7 leads to upregulation of MHC-I expression, augments immune response and suppresses cholesterol accumulation. These findings demonstrate that ATG7 inhibition has therapeutic potential and application of statins can increase the sensitivity to immune checkpoint inhibitors.
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Affiliation(s)
- Wenxin Zhang
- Department of Pharmacy, Huashan Hospital, Fudan University, No.12 Urumqi Middle Road, Shanghai, 200040, China
| | - Lu Chen
- Department of Pharmacy, Huashan Hospital, Fudan University, No.12 Urumqi Middle Road, Shanghai, 200040, China
| | - Jiafeng Liu
- Department of Pharmacy, Huashan Hospital, Fudan University, No.12 Urumqi Middle Road, Shanghai, 200040, China
| | - Bicui Chen
- Department of Pharmacy, Huashan Hospital, Fudan University, No.12 Urumqi Middle Road, Shanghai, 200040, China
| | - Huanying Shi
- Department of Pharmacy, Huashan Hospital, Fudan University, No.12 Urumqi Middle Road, Shanghai, 200040, China
| | - Haifei Chen
- Department of Pharmacy, Huashan Hospital, Fudan University, No.12 Urumqi Middle Road, Shanghai, 200040, China
| | - Huijie Qi
- Department of Pharmacy, Huashan Hospital, Fudan University, No.12 Urumqi Middle Road, Shanghai, 200040, China
| | - Zimei Wu
- Department of Pharmacy, Huashan Hospital, Fudan University, No.12 Urumqi Middle Road, Shanghai, 200040, China
| | - Xiang Mao
- Department of Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Xinhai Wang
- Department of Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Yuxin Huang
- Department of Pharmacy, Huashan Hospital, Fudan University, No.12 Urumqi Middle Road, Shanghai, 200040, China
| | - Jiyifan Li
- Department of Pharmacy, Huashan Hospital, Fudan University, No.12 Urumqi Middle Road, Shanghai, 200040, China
| | - Zheng Yu
- Department of Pharmacy, Huashan Hospital, Fudan University, No.12 Urumqi Middle Road, Shanghai, 200040, China
| | - Mingkang Zhong
- Department of Pharmacy, Huashan Hospital, Fudan University, No.12 Urumqi Middle Road, Shanghai, 200040, China.
| | - Tianxiao Wang
- Department of Pharmacy, Huashan Hospital, Fudan University, No.12 Urumqi Middle Road, Shanghai, 200040, China.
| | - Qunyi Li
- Department of Pharmacy, Huashan Hospital, Fudan University, No.12 Urumqi Middle Road, Shanghai, 200040, China.
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Wilbur HC, Le DT, Agarwal P. Immunotherapy of MSI Cancer: Facts and Hopes. Clin Cancer Res 2024; 30:1438-1447. [PMID: 38015720 DOI: 10.1158/1078-0432.ccr-21-1935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 09/14/2023] [Accepted: 11/06/2023] [Indexed: 11/30/2023]
Abstract
Microsatellite instability (MSI) is a tumor molecular phenotype that evolves from loss of function in the mismatch repair (MMR) proteins through deleterious germline mutations, epigenetic inactivation, or somatic biallelic mutations. This phenotype is characterized by genomic hyper-mutability, increased neoantigen expression, and a favorable, immune-rich tumor microenvironment. These features confer a greater likelihood of response to treatment with the class of agents known as immune checkpoint inhibitors (ICI) and, potentially, other immune-based therapeutics. MSI as a predictive biomarker for response to treatment with ICIs ultimately led to the first tissue-agnostic approval of pembrolizumab for advanced, previously treated MSI or deficient MMR (dMMR) tumors. Nevertheless, response to ICIs in dMMR/MSI tumors is not universal. Identifying predictors of response and elucidating mechanisms of immune escape will be crucial to continued successful treatment of this subset. In this review, we aim to describe the pathogenesis and key immunologic features of dMMR/MSI tumors, provide a brief overview of the currently approved treatments, and discuss promising novel immune-based therapeutics currently under investigation.
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Affiliation(s)
- H Catherine Wilbur
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland
| | - Dung T Le
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland
| | - Parul Agarwal
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania
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Chiba Y, Kagabu M, Osakabe M, Ito R, Sato S, Takatori E, Kaido Y, Nagasawa T, Shoji T, Yanagawa N, Baba T. A single-institution retrospective exploratory analysis on the effectiveness and safety of lenvatinib plus pembrolizumab for advanced endometrial cancer: insights from ProMisE molecular classification system. Jpn J Clin Oncol 2024; 54:424-433. [PMID: 38251744 DOI: 10.1093/jjco/hyad192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 12/22/2023] [Indexed: 01/23/2024] Open
Abstract
BACKGROUND The Proactive Molecular Risk Classifier for Endometrial Cancer has identified four risk groups for the prognosis of endometrial cancer. Lenvatinib plus pembrolizumab was recently approved as a second-line treatment for unresectable endometrial cancer, but reports in clinical practice are lacking. The relationship between the efficacy of lenvatinib/pembrolizumab and Proactive Molecular Risk Classifier for Endometrial Cancer classification is unclear. METHODS This single-centre retrospective study included patients who underwent lenvatinib/pembrolizumab therapy at Iwate Medical University Hospital between January 2022 and March 2023. Formalin-fixed paraffin-embedded specimens obtained from patients before treatment were collected and classified into the mismatch repair-deficient, p53 abnormal and no specific molecular profile subtypes using immunohistochemistry. The response rate, progression-free survival and adverse events were evaluated using electronic medical records. The study was approved by the hospital's ethics committee (approval number: MH2022-093). RESULTS This study enrolled 20 patients, who underwent a median follow-up of 17.8 months (95% confidence interval: 16.6-18.9). The best overall response rate was 60.0% (36.1-80.9), and the median progression-free survival was 11.6 months (2.9-20.3). The median progression-free survival in the p53 abnormal group (n = 9) was 3.4 months (3.0-3.8); however, progression-free survival did not reach the median (P < 0.001) in the mismatch repair-deficient/no specific molecular profile group (n = 11). Symptomatic immune-related adverse events (except hypothyroidism) occurred in 4/20 (25.0%) patients, and partial responses were observed in all cases. No treatment-related deaths occurred. CONCLUSION The p53abn group in the Proactive Molecular Risk Classifier for Endometrial Cancer classification has a poor prognosis even after treatment with lenvatinib/pembrolizumab.
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Affiliation(s)
- Yohei Chiba
- Department of Obstetrics and Gynecology, Iwate Medical University School of Medicine, Iwate, Japan
| | - Masahiro Kagabu
- Department of Obstetrics and Gynecology, Iwate Medical University School of Medicine, Iwate, Japan
| | - Mitsumasa Osakabe
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, Iwate, Japan
| | - Rikako Ito
- Department of Obstetrics and Gynecology, Iwate Medical University School of Medicine, Iwate, Japan
- Department of Obstetrics and Gynecology, Iwate Prefectural Ofunato Hospital, Iwate, Japan
| | - Sho Sato
- Department of Obstetrics and Gynecology, Iwate Medical University School of Medicine, Iwate, Japan
| | - Eriko Takatori
- Department of Obstetrics and Gynecology, Iwate Medical University School of Medicine, Iwate, Japan
| | - Yoshitaka Kaido
- Department of Obstetrics and Gynecology, Iwate Medical University School of Medicine, Iwate, Japan
| | - Takayuki Nagasawa
- Department of Obstetrics and Gynecology, Iwate Medical University School of Medicine, Iwate, Japan
| | - Tadahiro Shoji
- Department of Obstetrics and Gynecology, Iwate Medical University School of Medicine, Iwate, Japan
| | - Naoki Yanagawa
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, Iwate, Japan
| | - Tsukasa Baba
- Department of Obstetrics and Gynecology, Iwate Medical University School of Medicine, Iwate, Japan
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Pugazenthi S, Price M, De La Vega Gomar R, Kruchko C, Waite KA, Barnholtz-Sloan JS, Walsh KM, Kim AH, Ostrom QT. Association of county-level socioeconomic status with meningioma incidence and outcomes. Neuro Oncol 2024; 26:749-763. [PMID: 38087980 PMCID: PMC10995507 DOI: 10.1093/neuonc/noad223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024] Open
Abstract
BACKGROUND Prior literature suggests that individual socioeconomic status (SES) may influence incidence, treatments, and survival of brain tumor cases. We aim to conduct the first national study to evaluate the association between US county-level SES and incidence, treatment, and survival in meningioma. METHODS The Central Brain Tumor Registry of the United States analytic dataset, which combines data from CDC's National Program of Cancer Registries (NPCR) and National Cancer Institute's Surveillance, Epidemiology, and End Results Program, was used to identify meningioma cases from 2006 to 2019. SES quintiles were created using American Community Survey data. Logistic regression models were used to evaluate associations between SES and meningioma. Cox proportional hazard models were constructed to assess the effect of SES on survival using the NPCR analytic dataset. RESULTS A total of 409 681 meningioma cases were identified. Meningioma incidence increased with higher county-level SES with Q5 (highest quintile) having a 12% higher incidence than Q1 (incidence rate ratios (IRR) = 1.12, 95%CI: 1.10-1.14; P < .0001). The Hispanic group was the only racial-ethnic group that had lower SES associated with increased meningioma incidence (Q5: age-adjusted incidence ratio (AAIR) = 9.02, 95%CI: 8.87-9.17 vs. Q1: AAIR = 9.33, 95%CI: 9.08-9.59; IRR = 0.97, 95%CI: 0.94-1.00; P = .0409). Increased likelihood of surgical treatment was associated with Asian or Pacific Islander non-Hispanic individuals (compared to White non-Hispanic (WNH)) (OR = 1.28, 95%CI: 1.23-1.33, P < .001) and males (OR = 1.31, 95%CI: 1.29-1.33, P < .001). Black non-Hispanic individuals (OR = 0.90, 95%CI: 0.88-0.92, P < .001) and those residing in metropolitan areas (OR = 0.96, 95%CI: 0.96-0.96, P < .001) were less likely to receive surgical treatment compared to WNH individuals. Overall median survival was 137 months, and survival was higher in higher SES counties (Q5 median survival = 142 months). CONCLUSIONS Higher county-level SES was associated with increased meningioma incidence, surgical treatment, and overall survival. Racial-ethnic stratification identified potential disparities within the meningioma population. Further work is needed to understand the underpinnings of socioeconomic and racial disparities for meningioma patients.
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Affiliation(s)
- Sangami Pugazenthi
- Department of Neurosurgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Mackenzie Price
- Central Brain Tumor Registry of the United States, Hinsdale, Illinois, USA
- Department of Neurosurgery, Duke University School of Medicine, Durham, North Carolina, USA
| | | | - Carol Kruchko
- Central Brain Tumor Registry of the United States, Hinsdale, Illinois, USA
| | - Kristin A Waite
- Central Brain Tumor Registry of the United States, Hinsdale, Illinois, USA
- Trans-Divisional Research Program (TDRP), Division of Cancer Epidemiology and Genetics (DCEG), National Cancer Institute, Bethesda, Maryland, USA
| | - Jill S Barnholtz-Sloan
- Trans-Divisional Research Program (TDRP), Division of Cancer Epidemiology and Genetics (DCEG), National Cancer Institute, Bethesda, Maryland, USA
- Center for Biomedical Informatics & Information Technology (CBIIT), National Cancer Institute, Bethesda, Maryland, USA
| | - Kyle M Walsh
- Department of Neurosurgery, Duke University School of Medicine, Durham, North Carolina, USA
- The Preston Robert Tisch Brain Tumor Center, Duke University School of Medicine, Durham, North Carolina, USA
- Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina, USA
| | - Albert H Kim
- Department of Neurosurgery, Washington University School of Medicine, St. Louis, Missouri, USA
- The Brain Tumor Center, Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Quinn T Ostrom
- Central Brain Tumor Registry of the United States, Hinsdale, Illinois, USA
- Department of Neurosurgery, Duke University School of Medicine, Durham, North Carolina, USA
- The Preston Robert Tisch Brain Tumor Center, Duke University School of Medicine, Durham, North Carolina, USA
- Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina, USA
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Arjuhn R, Jeeva S, Vijayasree TN. CLO24-078: Hippocampal Optimization and Dosimetric Analysis on Feasibility of Hippocampal Sparing in Primary Gliomas-A Retrospective Dosimetric Study in a Tertiary Care Center. J Natl Compr Canc Netw 2024; 22:CLO24-078. [PMID: 38579759 DOI: 10.6004/jnccn.2023.7210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2024]
Affiliation(s)
- R Arjuhn
- 1Rajiv Gandhi Government General Hospital, Chennai, Tamil Nadu, India
| | - S Jeeva
- 1Rajiv Gandhi Government General Hospital, Chennai, Tamil Nadu, India
| | - T N Vijayasree
- 1Rajiv Gandhi Government General Hospital, Chennai, Tamil Nadu, India
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Sun M, Moquet J, Barnard S, Mancey H, Burling D, Baldwin-Cleland R, Monahan K, Latchford A, Lloyd D, Bouffler S, Badie C, Anyamene NA, Ainsbury E. In vitro study of radiosensitivity in colorectal cancer cell lines associated with Lynch syndrome. Front Public Health 2024; 12:1369201. [PMID: 38638480 PMCID: PMC11024246 DOI: 10.3389/fpubh.2024.1369201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 03/18/2024] [Indexed: 04/20/2024] Open
Abstract
Introduction Lynch syndrome patients have an inherited predisposition to cancer due to a deficiency in DNA mismatch repair (MMR) genes which could lead to a higher risk of developing cancer if exposed to ionizing radiation. This pilot study aims to reveal the association between MMR deficiency and radiosensitivity at both a CT relevant low dose (20 mGy) and a therapeutic higher dose (2 Gy). Methods Human colorectal cancer cell lines with (dMMR) or without MMR deficiency (pMMR) were analyzed before and after exposure to radiation using cellular and cytogenetic analyses i.e., clonogenic assay to determine cell reproductive death; sister chromatid exchange (SCE) assay to detect the exchange of DNA between sister chromatids; γH2AX assay to analyze DNA damage repair; and apoptosis analysis to compare cell death response. The advantages and limitations of these assays were assessed in vitro, and their applicability and feasibility investigated for their potential to be used for further studies using clinical samples. Results Results from the clonogenic assay indicated that the pMMR cell line (HT29) was significantly more radio-resistant than the dMMR cell lines (HCT116, SW48, and LoVo) after 2 Gy X-irradiation. Both cell type and radiation dose had a significant effect on the yield of SCEs/chromosome. When the yield of SCEs/chromosome for the irradiated samples (2 Gy) was normalized against the controls, no significant difference was observed between the cell lines. For the γH2AX assay, 0, 20 mGy and 2 Gy were examined at post-exposure time points of 30 min (min), 4 and 24 h (h). Statistical analysis revealed that HT29 was only significantly more radio-resistant than the MLH1-deficient cells lines, but not the MSH2-deficient cell line. Apoptosis analysis (4 Gy) revealed that HT29 was significantly more radio-resistant than HCT116 albeit with very few apoptotic cells observed. Discussion Overall, this study showed radio-resistance of the MMR proficient cell line in some assays, but not in the others. All methods used within this study have been validated; however, due to the limitations associated with cancer cell lines, the next step will be to use these assays in clinical samples in an effort to understand the biological and mechanistic effects of radiation in Lynch patients as well as the health implications.
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Affiliation(s)
- Mingzhu Sun
- United Kingdom Health Security Agency, Department of Radiation Effects, Cytogenetics and Pathology Group, Radiation, Chemical and Environmental Hazards Directorate, Didcot, United Kingdom
| | - Jayne Moquet
- United Kingdom Health Security Agency, Department of Radiation Effects, Cytogenetics and Pathology Group, Radiation, Chemical and Environmental Hazards Directorate, Didcot, United Kingdom
| | - Stephen Barnard
- United Kingdom Health Security Agency, Department of Radiation Effects, Cytogenetics and Pathology Group, Radiation, Chemical and Environmental Hazards Directorate, Didcot, United Kingdom
| | - Hannah Mancey
- United Kingdom Health Security Agency, Department of Radiation Effects, Cytogenetics and Pathology Group, Radiation, Chemical and Environmental Hazards Directorate, Didcot, United Kingdom
| | - David Burling
- Intestinal Imaging Centre, St Mark's Hospital, London North West University Healthcare National Health Service Trust, Harrow, United Kingdom
| | - Rachel Baldwin-Cleland
- Intestinal Imaging Centre, St Mark's Hospital, London North West University Healthcare National Health Service Trust, Harrow, United Kingdom
| | - Kevin Monahan
- Lynch Syndrome Clinic, Centre for Familial Intestinal Cancer, St Mark's Hospital, London North West University Healthcare National Health Service Trust, Harrow, United Kingdom
| | - Andrew Latchford
- Lynch Syndrome Clinic, Centre for Familial Intestinal Cancer, St Mark's Hospital, London North West University Healthcare National Health Service Trust, Harrow, United Kingdom
| | - David Lloyd
- United Kingdom Health Security Agency, Department of Radiation Effects, Cytogenetics and Pathology Group, Radiation, Chemical and Environmental Hazards Directorate, Didcot, United Kingdom
| | - Simon Bouffler
- United Kingdom Health Security Agency, Department of Radiation Effects, Cytogenetics and Pathology Group, Radiation, Chemical and Environmental Hazards Directorate, Didcot, United Kingdom
| | - Christophe Badie
- United Kingdom Health Security Agency, Department of Radiation Effects, Cytogenetics and Pathology Group, Radiation, Chemical and Environmental Hazards Directorate, Didcot, United Kingdom
| | - Nicola A. Anyamene
- East and North Hertfordshire National Health Service Trust, Mount Vernon Cancer Centre, Northwood, United Kingdom
| | - Elizabeth Ainsbury
- United Kingdom Health Security Agency, Department of Radiation Effects, Cytogenetics and Pathology Group, Radiation, Chemical and Environmental Hazards Directorate, Didcot, United Kingdom
- Environmental Research Group Within the School of Public Health, Faculty of Medicine at Imperial College of Science, Technology and Medicine, London, United Kingdom
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Joshi V, Beecher K, Lim M, Stacey A, Feng Y, Jat PS, Duijf PHG, Simpson PT, Lakhani SR, McCart Reed AE. B7-H3 Expression in Breast Cancer and Brain Metastasis. Int J Mol Sci 2024; 25:3976. [PMID: 38612786 PMCID: PMC11012592 DOI: 10.3390/ijms25073976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/22/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024] Open
Abstract
Brain metastasis is a significant challenge for some breast cancer patients, marked by its aggressive nature, limited treatment options, and poor clinical outcomes. Immunotherapies have emerged as a promising avenue for brain metastasis treatment. B7-H3 (CD276) is an immune checkpoint molecule involved in T cell suppression, which is associated with poor survival in cancer patients. Given the increasing number of clinical trials using B7-H3 targeting CAR T cell therapies, we examined B7-H3 expression across breast cancer subtypes and in breast cancer brain metastases to assess its potential as an interventional target. B7-H3 expression was investigated using immunohistochemistry on tissue microarrays of three clinical cohorts: (i) unselected primary breast cancers (n = 347); (ii) brain metastatic breast cancers (n = 61) and breast cancer brain metastases (n = 80, including a subset of 53 patient-matched breast and brain metastasis cases); and (iii) mixed brain metastases from a range of primary tumours (n = 137). In primary breast cancers, B7-H3 expression significantly correlated with higher tumour grades and aggressive breast cancer subtypes, as well as poorer 5-year survival outcomes. Subcellular localisation of B7-H3 impacted breast cancer-specific survival, with cytoplasmic staining also correlating with a poorer outcome. Its expression was frequently detected in brain metastases from breast cancers, with up to 90% expressing B7-H3. However, not all brain metastases showed high levels of expression, with those from colorectal and renal tumours showing a low frequency of B7-H3 expression (0/14 and 2/16, respectively). The prevalence of B7-H3 expression in breast cancers and breast cancer brain metastases indicates potential opportunities for B7-H3 targeted therapies in breast cancer management.
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Affiliation(s)
- Vaibhavi Joshi
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane 4029, Australia; (V.J.); (K.B.); (M.L.); (A.S.); (Y.F.); (P.T.S.)
| | - Kate Beecher
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane 4029, Australia; (V.J.); (K.B.); (M.L.); (A.S.); (Y.F.); (P.T.S.)
| | - Malcolm Lim
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane 4029, Australia; (V.J.); (K.B.); (M.L.); (A.S.); (Y.F.); (P.T.S.)
| | - Andrew Stacey
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane 4029, Australia; (V.J.); (K.B.); (M.L.); (A.S.); (Y.F.); (P.T.S.)
| | - Yufan Feng
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane 4029, Australia; (V.J.); (K.B.); (M.L.); (A.S.); (Y.F.); (P.T.S.)
| | - Parmjit S. Jat
- MRC Prion Unit at UCL, Institute of Prion Diseases, Courtauld Building, London W1W 7FF, UK;
| | - Pascal H. G. Duijf
- Centre for Cancer Biology, Clinical and Health Sciences, University of South Australia & SA Pathology, Adelaide 5001, Australia;
| | - Peter T. Simpson
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane 4029, Australia; (V.J.); (K.B.); (M.L.); (A.S.); (Y.F.); (P.T.S.)
| | - Sunil R. Lakhani
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane 4029, Australia; (V.J.); (K.B.); (M.L.); (A.S.); (Y.F.); (P.T.S.)
- Pathology Queensland, Royal Brisbane and Women’s Hospital, Brisbane 4029, Australia
| | - Amy E. McCart Reed
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane 4029, Australia; (V.J.); (K.B.); (M.L.); (A.S.); (Y.F.); (P.T.S.)
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Chen T, Mao S, Ma J, Tang X, Zhu R, Mao D, Zhu X, Pan Q. Proximity-Enhanced Functional Imaging Analysis of Engineered Tumors. Angew Chem Int Ed Engl 2024; 63:e202319117. [PMID: 38305848 DOI: 10.1002/anie.202319117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/01/2024] [Accepted: 02/01/2024] [Indexed: 02/03/2024]
Abstract
Functional imaging (FI) techniques have revolutionized tumor imaging by providing information on specific tumor functions, such as glycometabolism. However, tumor cells lack unique molecular characteristics at the molecular level and metabolic pathways, resulting in limited metabolic differences compared to normal cells and increased background signals from FI. To address this limitation, we developed a novel imaging technique termed proximity-enhanced functional imaging (PEFI) for accurate visualization of tumors. By using "two adjacent chemically labeled glycoproteins" as output signals, we significantly enhance the metabolic differences between tumor and normal cells by PEFI, thereby reducing the background signals for analysis and improving the accuracy of tumor functional imaging. Our results demonstrate that PEFI can accurately identify tumors at the cellular, tissue, and animal level, and has potential value in clinical identification and analysis of tumor cells and tissues, as well as in the guidance of clinical tumor resection surgery.
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Affiliation(s)
- Tianshu Chen
- Clinical Laboratory, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, P. R. China
- Shanghai Key Laboratory of Clinical Molecular Diagnostics for Pediatrics, Shanghai, 200127, P. R. China
| | - Siwei Mao
- Clinical Laboratory, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, P. R. China
- Shanghai Key Laboratory of Clinical Molecular Diagnostics for Pediatrics, Shanghai, 200127, P. R. China
| | - Ji Ma
- Clinical Laboratory, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, P. R. China
- Shanghai Key Laboratory of Clinical Molecular Diagnostics for Pediatrics, Shanghai, 200127, P. R. China
| | - Xiaochen Tang
- Clinical Laboratory, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, P. R. China
- Shanghai Key Laboratory of Clinical Molecular Diagnostics for Pediatrics, Shanghai, 200127, P. R. China
| | - Rui Zhu
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital of Tongji University, Shanghai, 200072, P. R. China
| | - Dongsheng Mao
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital of Tongji University, Shanghai, 200072, P. R. China
| | - Xiaoli Zhu
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital of Tongji University, Shanghai, 200072, P. R. China
| | - Qiuhui Pan
- Clinical Laboratory, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, P. R. China
- Shanghai Key Laboratory of Clinical Molecular Diagnostics for Pediatrics, Shanghai, 200127, P. R. China
- Sanya Women and Children's Hospital Managed by Shanghai Children's Medical Center, Sanya, 572000, P. R. China
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Saucedo-Mora L, Sanz MÁ, Montáns FJ, Benítez JM. A simple agent-based hybrid model to simulate the biophysics of glioblastoma multiforme cells and the concomitant evolution of the oxygen field. Comput Methods Programs Biomed 2024; 246:108046. [PMID: 38301393 DOI: 10.1016/j.cmpb.2024.108046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 01/19/2024] [Accepted: 01/21/2024] [Indexed: 02/03/2024]
Abstract
BACKGROUND AND OBJECTIVES Glioblastoma multiforme (GBM) is one of the most aggressive cancers of the central nervous system. It is characterized by a high mitotic activity and an infiltrative ability of the glioma cells, neovascularization and necrosis. GBM evolution entails the continuous interplay between heterogeneous cell populations, chemotaxis, and physical cues through different scales. In this work, an agent-based hybrid model is proposed to simulate the coupling of the multiscale biological events involved in the GBM invasion, specifically the individual and collective migration of GBM cells and the concurrent evolution of the oxygen field and phenotypic plasticity. An asset of the formulation is that it is conceptually and computationally simple but allows to reproduce the complexity and the progression of the GBM micro-environment at cell and tissue scales simultaneously. METHODS The migration is reproduced as the result of the interaction between every single cell and its micro-environment. The behavior of each individual cell is formulated through genotypic variables whereas the cell micro-environment is modeled in terms of the oxygen concentration and the cell density surrounding each cell. The collective behavior is formulated at a cellular scale through a flocking model. The phenotypic plasticity of the cells is induced by the micro-environment conditions, considering five phenotypes. RESULTS The model has been contrasted by benchmark problems and experimental tests showing the ability to reproduce different scenarios of glioma cell migration. In all cases, the individual and collective cell migration and the coupled evolution of both the oxygen field and phenotypic plasticity have been properly simulated. This simple formulation allows to mimic the formation of relevant hallmarks of glioblastoma multiforme, such as the necrotic cores, and to reproduce experimental evidences related to the mitotic activity in pseudopalisades. CONCLUSIONS In the collective migration, the survival of the clusters prevails at the expense of cell mitosis, regardless of the size of the groups, which delays the formation of necrotic foci and reduces the rate of oxygen consumption.
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Affiliation(s)
- Luis Saucedo-Mora
- E.T.S. de Ingeniería Aeronáutica y del Espacio, Universidad Politécnica de Madrid, Pza. Cardenal Cisneros 3, 28040, Madrid, Spain; Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PJ, UK; Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, MA 02139, USA
| | - Miguel Ángel Sanz
- E.T.S. de Ingeniería Aeronáutica y del Espacio, Universidad Politécnica de Madrid, Pza. Cardenal Cisneros 3, 28040, Madrid, Spain
| | - Francisco Javier Montáns
- E.T.S. de Ingeniería Aeronáutica y del Espacio, Universidad Politécnica de Madrid, Pza. Cardenal Cisneros 3, 28040, Madrid, Spain; Department of Mechanical and Aerospace Engineering, Herbert Wertheim College of Engineering, University of Florida, FL 32611, USA
| | - José María Benítez
- E.T.S. de Ingeniería Aeronáutica y del Espacio, Universidad Politécnica de Madrid, Pza. Cardenal Cisneros 3, 28040, Madrid, Spain.
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Zamarud A, Marianayagam NJ, Sekar V, Testa S, Park DJ, Yener U, McCleary TL, Yoo KH, Emrich S, Tayag A, Ustrzynski L, Pollom E, Soltys S, Wang L, Charville G, Ganjoo K, Chang SD, Meola A. Surgery and stereotactic radiosurgery for spinal leiomyosarcoma: a single-institution retrospective series and systematic review. J Neurosurg Spine 2024; 40:485-497. [PMID: 38157539 DOI: 10.3171/2023.10.spine23666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 10/12/2023] [Indexed: 01/03/2024]
Abstract
OBJECTIVE Leiomyosarcoma (LMS) is a rare, aggressive soft-tissue sarcoma that seldom spreads to the bone. The spine can be either the site of LMS osseous metastases or the primary tumor site. The optimal treatment option for spinal LMS is still unclear. The authors present a cohort of patients with spinal LMS treated with either upfront surgery or upfront CyberKnife stereotactic radiosurgery (SRS). METHODS The authors retrospectively studied the clinical and radiological outcomes of 17 patients with spinal LMS treated at their institution between 2004 and 2020. Either surgery or SRS was used as the upfront treatment. The clinical and radiological outcomes were assessed. A systematic review of the literature was also conducted. RESULTS Of the 17 patients (20 spinal lesions), 12 (70.6%) were female. The median patient age was 61 years (range 41-80 years). Ten patients had upfront surgery for their spinal lesions, and 7 had upfront CyberKnife radiosurgery. The median follow-up was 11 months (range 0.3-130 months). The median overall survival (OS) for the entire cohort was 13 months (range 0.3-97 months). In subgroup analysis, the median OS was lower for the surgical group (13 months, range 0.3-50 months), while the median OS for the SRS group was 15 months (range 5-97 months) (p = 0.5). Forty percent (n = 4) of those treated with surgery presented with local recurrence at a median of 6.7 months (range 0.3-36 months), while only 14% (n = 1) of those treated with CyberKnife radiosurgery had local recurrence after 5 months. Local tumor control (LTC) rates at the 6-, 12-, and 18-month follow-ups were 72%, 58%, and 43%, respectively, for the SRS group and 40%, 30%, and 20%, respectively, for the surgery group (p < 0.05). The literature review included 35 papers with 70 patients harboring spinal LMS; only 2 patients were treated with SRS. The literature review confirms the clinical and radiological outcomes of the surgical group, while data on SRS are anecdotal. CONCLUSIONS The authors present the largest series in the literature of spinal LMS and the first on SRS for spinal LMS. This study shows that LTC is statistically significantly better in patients receiving upfront SRS instead of surgery. The OS does not appear different between the two groups.
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Liu T, Liu J. Integration analysis of single-cell transcriptome reveals specific monocyte subsets associated with melanoma brain and leptomeningeal metastasis. Skin Res Technol 2024; 30:e13710. [PMID: 38616506 PMCID: PMC11016815 DOI: 10.1111/srt.13710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 04/01/2024] [Indexed: 04/16/2024]
Abstract
BACKGROUND Melanoma central nervous system (CNS) metastasis remains a leading cause of patient mortality, and the underlying pathological mechanism has not been fully elucidated, leading to a lack of effective therapeutic strategies. MATERIALS AND METHODS In this study, we conducted an integrated analysis of single-cell transcriptomic data related to melanoma brain metastasis (MBM) and leptomeningeal metastasis (LMM). We focused on differences of subset composition and molecular expression of monocytes in blood, primary tumor, brain metastases, and leptomeningeal metastases. RESULTS Significant differences were observed among monocytes in blood, primary tumor, and different CNS metastatic tissues, particularly in terms of subset differentiation and gene expression patterns. Subsequent analysis revealed the upregulation of cell proportions of six monocyte subsets in brain metastasis and leptomeningeal metastasis. Based on differential gene analysis, four of these subsets exhibited increased expression of factors promoting tumor migration and survival, including AREG+ monocytes (AREG, EREG, THBS1), FABP5+ monocytes (SPP1, CCL2, CTSL), and CXCL3+ monocytes (CXCL3, IL8, IL1B). The proportions of TPSB2+ monocytes (IL32, CCL5) were notably elevated in melanoma leptomeningeal metastasis tissues. Pathway analysis indicated the activation of signaling pathways such as NOD-like receptors, NFκB, and Toll-like receptors in these metastasis-related subsets. CONCLUSION Our findings elucidate that AREG+, FABP5+ and CXCL3+ monocytes are associated with brain metastasis and TPSB2+ monocytes are associated with leptomeningeal metastasis in melanoma, which may be contribute to the development of therapeutic strategies focusing on monocytes or cytokines for melanoma CNS metastasis.
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Affiliation(s)
- Tao Liu
- Department of General Surgerythe First People's Hospital of Shuangliu DistrictChengduChina
| | - Jian‐Ping Liu
- Department of General Surgerythe First People's Hospital of Shuangliu DistrictChengduChina
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Yang H, Li M, Deng Y, Wen H, Luo M, Zhang W. Roles and interactions of tumor microenvironment components in medulloblastoma with implications for novel therapeutics. Genes Chromosomes Cancer 2024; 63:e23233. [PMID: 38607297 DOI: 10.1002/gcc.23233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 03/16/2024] [Indexed: 04/13/2024] Open
Abstract
Medulloblastomas, the most common malignant pediatric brain tumors, can be classified into the wingless, sonic hedgehog (SHH), group 3, and group 4 subgroups. Among them, the SHH subgroup with the TP53 mutation and group 3 generally present with the worst patient outcomes due to their high rates of recurrence and metastasis. A novel and effective treatment for refractory medulloblastomas is urgently needed. To date, the tumor microenvironment (TME) has been shown to influence tumor growth, recurrence, and metastasis through immunosuppression, angiogenesis, and chronic inflammation. Treatments targeting TME components have emerged as promising approaches to the treatment of solid tumors. In this review, we summarize progress in research on medulloblastoma microenvironment components and their interactions. We also discuss challenges and future research directions for TME-targeting medulloblastoma therapy.
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Affiliation(s)
- Hanjie Yang
- Department of Pediatric Neurosurgery, Neurosurgery Center, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Min Li
- Department of Pediatric Neurosurgery, Neurosurgery Center, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yuhao Deng
- Department of Pediatric Neurosurgery, Neurosurgery Center, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Huantao Wen
- Department of Pediatric Neurosurgery, Neurosurgery Center, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Minjie Luo
- Department of Pediatric Neurosurgery, Neurosurgery Center, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Wangming Zhang
- Department of Pediatric Neurosurgery, Neurosurgery Center, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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Li Y, Qin J, Chen G, Wu W, Sun X. Plasma THBS1 as a predictive biomarker for poor prognosis and brain metastasis in patients with HER2-enriched breast cancer. Int J Clin Oncol 2024; 29:427-441. [PMID: 38411882 DOI: 10.1007/s10147-024-02472-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 01/04/2024] [Indexed: 02/28/2024]
Abstract
BACKGROUND Thrombospondin-1 (THBS1) is a secretory adhesive glycoprotein involved in the progression of multiple malignancies, including breast cancer. However, the clinical significance and prognostic role of plasma THBS1 in breast cancer have yet to be clarified. METHODS Plasma THBS1 levels in 627 breast cancer patients were analyzed by enzyme-linked immunosorbent assay. Bone marrow blood was drawn from the anterior/posterior superior iliac spine to detect the presence of disseminated tumor cells (DTCs). The effects of plasma THBS1 on the clinicopathological characteristics and survival prediction of breast cancer patients were explored. RESULTS Plasma THBS1 did not correlate with overall survival, breast cancer-specific survival (BCSS), and distant disease-free survival (DDFS) in the entire breast cancer cohort. Notably, HER2-enriched patients with high-plasma THBS1 levels had significantly shorter BCSS (P = 0.027) and DDFS (P = 0.011) than those with low levels. Multivariate analyses revealed that plasma THBS1 was an independent prognostic marker of BCSS (P = 0.026) and DDFS (P = 0.007) in HER2-enriched patients. THBS1 levels were 24% higher in positive DTC patients than in negative DTC patients (P = 0.031), and high levels were significantly associated with poor BCSS in positive DTC patients (HR 2.08, 95% CI 1.17-3.71; P = 0.019). Moreover, high-plasma THBS1 levels were specifically associated with an increased occurrence of brain metastasis in HER2-enriched patients (P = 0.041). CONCLUSION These findings suggest that plasma THBS1 may be serving as an unfavorable prognosis predictor for HER2-enriched breast cancer and justifies the need for further research.
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Affiliation(s)
- Yang Li
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Hongkou District, Shanghai, 200080, China
| | - Jun Qin
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Hongkou District, Shanghai, 200080, China
| | - Guiming Chen
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Hongkou District, Shanghai, 200080, China
| | - Weidong Wu
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Hongkou District, Shanghai, 200080, China
| | - Xing Sun
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Hongkou District, Shanghai, 200080, China.
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Lim H, Im M, Seo ES, Cho HW, Ju HY, Yoo KH, Cho SY, Kim JW, Lim DH, Sung KW, Lee JW. Tandem High-Dose Chemotherapy Increases the Risk of Secondary Malignant Neoplasm in Pediatric Solid Tumors. Cancer Res Treat 2024; 56:642-651. [PMID: 37997325 PMCID: PMC11016644 DOI: 10.4143/crt.2023.999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 11/23/2023] [Indexed: 11/25/2023] Open
Abstract
PURPOSE This study aimed to investigate the incidence and risk factors for secondary malignant neoplasms (SMN) in pediatric solid tumors, focusing on the effects of tandem high-dose chemotherapy (HDCT). MATERIALS AND METHODS Patients (aged < 19 years) diagnosed with or treated for pediatric solid tumors between 1994 and 2014 were retrospectively analyzed. The cumulative incidence of SMN was estimated using competing risk methods by considering death as a competing risk. RESULTS A total of 1,435 patients (413 with brain tumors and 1,022 with extracranial solid tumors) were enrolled. Seventy-one patients developed 74 SMNs, with a 10-year and 20-year cumulative incidence of 2.680±0.002% and 10.193±0.024%, respectively. The types of SMN included carcinoma in 28 (37.8%), sarcoma in 24 (32.4%), and hematologic malignancy in 15 (20.3%) cases. Osteosarcoma and thyroid carcinoma were the most frequently diagnosed tumors. Multivariate analysis showed that radiotherapy (RT) > 2, 340 cGy, and tandem HDCT were significant risk factors for SMN development. The SMN types varied according to the primary tumor type; carcinoma was the most frequent SMN in brain tumors and neuroblastoma, whereas hematologic malignancy and sarcomas developed more frequently in patients with sarcoma and retinoblastoma, respectively. CONCLUSION The cumulative incidence of SMN in pediatric patients with solid tumors was considerably high, especially in patients who underwent tandem HDCT or in those who received RT > 2,340 cGy. Therefore, the treatment intensity should be optimized based on individual risk assessment and the long-term follow-up of pediatric cancer survivors.
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Affiliation(s)
- Hana Lim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Minji Im
- Department of Pediatrics, CHA Gangnam Medical Center, CHA University School of Medicine, Seoul, Korea
| | - Eun Seop Seo
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hee Won Cho
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hee Young Ju
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Keon Hee Yoo
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sung Yoon Cho
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jong-Won Kim
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Do Hoon Lim
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ki Woong Sung
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ji Won Lee
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Rahman S, Ahmed Khan R, Chowdhury M, Hasan M, Haque MR, Rahman MM. Letter: Diffuse Isocitrate Dehydrogenase-Mutant Gliomas With Histone H3 Alterations are Distinguished by Unique Clinical Characteristics, Molecular Expression Profile, and Survival Prognosis. Neurosurgery 2024; 94:e59-e60. [PMID: 38206039 DOI: 10.1227/neu.0000000000002843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 12/13/2023] [Indexed: 01/12/2024] Open
Affiliation(s)
- Sabrina Rahman
- Department of Public Heath, Independent University-Bangladesh, Dhaka , Bangladesh
| | - Robert Ahmed Khan
- Neurosurgery Service, Imperial College Healthcare NHS Trust, London , UK
| | - Muhtamim Chowdhury
- Department of Neurosurgery, Bangladesh Medical College Hospital, Dhaka , Bangladesh
| | - Mahbub Hasan
- Department of Neurosurgery, Bangabandhu Sheikh Mujib Medical University, Dhaka , Bangladesh
| | - Md Raziul Haque
- Neurosurgery Department, Dhaka Medical College, Dhaka , Bangladesh
| | - Md Moshiur Rahman
- Neurosurgery Department, Holy Family Red Crescent Medical College, Dhaka , Bangladesh
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Stratmann JA, Althoff FC, Doebel P, Rauh J, Trummer A, Hünerlitürkoglu AN, Frost N, Yildirim H, Christopoulos P, Burkhard O, Büschenfelde CMZ, Becker von Rose A, Alt J, Aries SP, Webendörfer M, Kaldune S, Uhlenbruch M, Tritchkova G, Waller CF, Rittmeyer A, Hoffknecht P, Braess J, Kopp HG, Grohé C, Schäfer M, Schumann C, Griesinger F, Kuon J, Sebastian M, Reinmuth N. Sotorasib in KRAS G12C-mutated non-small cell lung cancer: A multicenter real-world experience from the compassionate use program in Germany. Eur J Cancer 2024; 201:113911. [PMID: 38377774 DOI: 10.1016/j.ejca.2024.113911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 01/29/2024] [Indexed: 02/22/2024]
Abstract
BACKGROUND Sotorasib is a first-in-class KRAS p.G12C-inhibitor that has entered clinical trials in pretreated patients with non-small cell lung cancer (NSCLC) in 2018. First response rates were promising in the CodeBreaK trials. It remains unclear whether response to sotorasib and outcomes differ in a real-world setting when including patients underrepresented in clinical trials. METHODS Patients with KRAS p.G12C-mutated advanced or metastatic NSCLC received sotorasib within the German multicenter sotorasib compassionate use program between 2020 to 2022. Data on efficacy, tolerability, and survival were analyzed in the full cohort and in subgroups of special interest such as co-occurring mutations and across PD-L1 expression levels. RESULTS We analyzed 163 patients who received sotorasib after a median of two treatment lines (range, 0 to 7). Every fourth patient had a poor performance status and 38% had brain metastases (BM). The objective response rate was 38.7%. The median overall survival was 9.8 months (95% CI, 6.5 to not reached). Median real-world (rw) progression-free survival was 4.8 months (9% CI, 3.9 to 5.9). Dose reductions and permanent discontinuation were necessary in 35 (21.5%) and 7 (4.3%) patients, respectively. Efficacy seems to be influenced by PD-L1 expression and a co-occurring KEAP1 mutation. KEAP1 was associated with an inferior survival. Other factors such as BM, STK11, and TP53 mutations had no impact on response and survival. CONCLUSION First results from a real-world population confirm promising efficacy of sotorasib for the treatment of advanced KRAS p.G12C-mutated NSCLC. Patients with co-occurring KEAP1 mutations seem to derive less benefit.
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Affiliation(s)
- Jan A Stratmann
- Goethe University Frankfurt, University Hospital, Department of Internal Medicine II, Hematology/Oncology, Frankfurt am Main, Germany
| | - Friederike C Althoff
- Goethe University Frankfurt, University Hospital, Department of Internal Medicine II, Hematology/Oncology, Frankfurt am Main, Germany.
| | - Paula Doebel
- Goethe University Frankfurt, University Hospital, Department of Internal Medicine II, Hematology/Oncology, Frankfurt am Main, Germany
| | - Jacqueline Rauh
- Hospital Witten, Medical Specialist Center of Internal Medicine, Witten, Germany
| | - Arne Trummer
- Municipal Clinic Braunschweig, Medical Specialist Center of Hematology/Oncology, Braunschweig, Germany
| | | | - Nikolaj Frost
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Zu Berlin, Department of Infectious Diseases and Pulmonary Medicine, Berlin, Germany
| | | | - Petros Christopoulos
- University Hospital Heidelberg, Thoraxklinik Heidelberg, Heidelberg, Germany; Translational Lung Research Center Heidelberg, member of the German Center for Lung Research (DZL), Germany
| | - Oswald Burkhard
- Medical Specialist Center of Internal Medicine, Hematology Oncology, Palliative Medicine in Worms, Worms, Germany
| | | | - Aaron Becker von Rose
- Technical University Munich, Klinikum rechts der Isar, Medical Department for Haematology and Oncology, Munich, Germany
| | - Jürgen Alt
- University Medical Center Mainz, Department of Internal Medicine III, Mainz, Germany
| | | | - Maximilian Webendörfer
- University Hospital Essen, West German Cancer Center, Department of Medical Oncology, Essen, Germany
| | - Stefan Kaldune
- RoMed Clinic Rosenheim, Department of Hematology/Oncology, Rosenheim, Germany
| | - Mark Uhlenbruch
- Kaiserswerther Diakonie Florence-Nightingale-Hospital Düsseldorf, Department of Hematology/Oncology, Düsseldorf, Germany
| | - Guergana Tritchkova
- University Hospital Dresden, TU Dresden, Clinic for Internal Medicine I, Dresden, Germany
| | - Cornelius F Waller
- University of Freiburg, University Medical Centre Freiburg, Department of Haematology, Oncology and Stem Cell Transplantation, Freiburg, Germany
| | | | - Petra Hoffknecht
- Niels-Stensen-Kliniken Franziskus Hospital Harderberg, Department of Hematology/Oncology, Hardenberg, Germany
| | - Jan Braess
- Hospital Barmherzige Brüder Regensburg, Regensburg, Germany
| | - Hans-Georg Kopp
- Robert Bosch Center for Tumor Diseases, Robert-Bosch-Hospital, Stuttgart, Germany
| | | | - Monica Schäfer
- Helios Klinikum Emil von Behring GmbH, Lungenklinik Heckeshorn, Berlin, Germany
| | - Christian Schumann
- Klinikverbund Allgäu gGmbH, Clinic for Pneumology, Thoracic Oncology, Sleep and Respiratory Medicine, Kempten and Immenstadt, Germany
| | - Frank Griesinger
- Pius-Hospital, University Medicine Oldenburg, Department of Hematology and Oncology, University Department Internal Medicine-Oncology, Oldenburg, Germany
| | - Jonas Kuon
- Lungenklinik Löwenstein, Department of Oncology, Löwenstein, Germany
| | - Martin Sebastian
- Goethe University Frankfurt, University Hospital, Department of Internal Medicine II, Hematology/Oncology, Frankfurt am Main, Germany
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Umapathy L, Brown T, Mushtaq R, Greenhill M, Lu J, Martin D, Altbach M, Bilgin A. Reducing annotation burden in MR: A novel MR-contrast guided contrastive learning approach for image segmentation. Med Phys 2024; 51:2707-2720. [PMID: 37956263 PMCID: PMC10994772 DOI: 10.1002/mp.16820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 08/24/2023] [Accepted: 10/06/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND Contrastive learning, a successful form of representational learning, has shown promising results in pretraining deep learning (DL) models for downstream tasks. When working with limited annotation data, as in medical image segmentation tasks, learning domain-specific local representations can further improve the performance of DL models. PURPOSE In this work, we extend the contrastive learning framework to utilize domain-specific contrast information from unlabeled Magnetic Resonance (MR) images to improve the performance of downstream MR image segmentation tasks in the presence of limited labeled data. METHODS The contrast in MR images is controlled by underlying tissue properties (e.g., T1 or T2) and image acquisition parameters. We hypothesize that learning to discriminate local representations based on underlying tissue properties should improve subsequent segmentation tasks on MR images. We propose a novel constrained contrastive learning (CCL) strategy that uses tissue-specific information via a constraint map to define positive and negative local neighborhoods for contrastive learning, embedding this information in the representational space during pretraining. For a given MR contrast image, the proposed strategy uses local signal characteristics (constraint map) across a set of related multi-contrast MR images as a surrogate for underlying tissue information. We demonstrate the utility of the approach for downstream: (1) multi-organ segmentation tasks in T2-weighted images where a DL model learns T2 information with constraint maps from a set of 2D multi-echo T2-weighted images (n = 101) and (2) tumor segmentation tasks in multi-parametric images from the public brain tumor segmentation (BraTS) (n = 80) dataset where DL models learn T1 and T2 information from multi-parametric BraTS images. Performance is evaluated on downstream multi-label segmentation tasks with limited data in (1) T2-weighted images of the abdomen from an in-house Radial-T2 (Train/Test = 30/20), (2) public Cartesian-T2 (Train/Test = 6/12) dataset, and (3) multi-parametric MR images from the public brain tumor segmentation dataset (BraTS) (Train/Test = 40/50). The performance of the proposed CCL strategy is compared to state-of-the-art self-supervised contrastive learning techniques. In each task, a model is also trained using all available labeled data for supervised baseline performance. RESULTS The proposed CCL strategy consistently yielded improved Dice scores, Precision, and Recall metrics, and reduced HD95 values across all segmentation tasks. We also observed performance comparable to the baseline with reduced annotation effort. The t-SNE visualization of features for T2-weighted images demonstrates its ability to embed T2 information in the representational space. On the BraTS dataset, we also observed that using an appropriate multi-contrast space to learn T1+T2, T1, or T2 information during pretraining further improved the performance of tumor segmentation tasks. CONCLUSIONS Learning to embed tissue-specific information that controls MR image contrast with the proposed constrained contrastive learning improved the performance of DL models on subsequent segmentation tasks compared to conventional self-supervised contrastive learning techniques. The use of such domain-specific local representations could help understand, improve performance, and mitigate the scarcity of labeled data in MR image segmentation tasks.
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Affiliation(s)
- Lavanya Umapathy
- Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ, United States
- Department of Medical Imaging, University of Arizona, Tucson, AZ, United States
- Department of Radiology, Center for Advanced Imaging Innovation and Research (CAI2R), New York University Grossman School of Medicine, New York, NY, United States
| | - Taylor Brown
- Department of Medical Imaging, University of Arizona, Tucson, AZ, United States
- College of Medicine, University of Arizona, Tucson, AZ, United States
| | - Raza Mushtaq
- Department of Medical Imaging, University of Arizona, Tucson, AZ, United States
- College of Medicine, University of Arizona, Tucson, AZ, United States
| | - Mark Greenhill
- Department of Medical Imaging, University of Arizona, Tucson, AZ, United States
- College of Medicine, University of Arizona, Tucson, AZ, United States
| | - J’rick Lu
- Department of Medical Imaging, University of Arizona, Tucson, AZ, United States
- College of Medicine, University of Arizona, Tucson, AZ, United States
| | - Diego Martin
- Department of Radiology, Houston Methodist Hospital, Houston, TX, United States
| | - Maria Altbach
- Department of Medical Imaging, University of Arizona, Tucson, AZ, United States
| | - Ali Bilgin
- Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ, United States
- Department of Medical Imaging, University of Arizona, Tucson, AZ, United States
- Program in Applied Mathematics, University of Arizona, Tucson, AZ, United States
- Department of Biomedical Engineering, University of Arizona, Tucson, AZ, United States
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Rim CH, Cho WK, Lee JH, Kim YS, Suh YG, Kim KH, Chang AR, Chie EK, Ahn YC. Radiation Oncologists' Perspectives on Oligometastatic Disease: A Korean Survey Study. Cancer Res Treat 2024; 56:414-421. [PMID: 37997326 PMCID: PMC11016661 DOI: 10.4143/crt.2023.876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 11/20/2023] [Indexed: 11/25/2023] Open
Abstract
PURPOSE Perspectives of radiation oncologists on oligometastatic disease was investigated using multi-layered survey. MATERIALS AND METHODS Online survey on the oligometastatic disease was distributed to the board-certified regular members of the Korean Society for Radiation Oncology. The questionnaire consisted of four domains: five questions on demographics; five on the definition of oligometastatic disease; four on the role of local therapy; and three on the oligometastatic disease classification, respectively. RESULTS A total of 135 radiation oncologists participated in the survey. The median length of practice after board certification was 22.5 years (range, 1 to 44 years), and the vast majority (94.1%) answered affirmatively to the clinical experience in oligometastatic disease management. Nearly two-thirds of the respondents considered the number of involved organs as an independent factor in defining oligometastasis. Most frequently perceived upper limit on the numerical definition of oligometastasis was 5 (64.2%), followed by 3 (26.0%), respectively. Peritoneal and brain metastasis were nominated as the sites to be excluded from oligometastastic disease by 56.3% and 12.6% of the participants, respectively. Vast majority (82.1%) agreed on the role of local treatment in the management of oligometastatic disease. Majority (72%) of the participants acknowledged the European Society for Radiotherapy and Oncology (ESTRO)-European Organisation for Research and Treatment of Cancer (EORTC) classification of oligometastatic disease, however, only 43.3% answered that they applied this classification in their clinical practice. Underlying reasons against the clinical use were 'too complicated' (66.0%), followed by 'insufficient supporting evidence' (30.0%), respectively. CONCLUSION While most radiation oncologists supported the role of local therapy in oligometastatic disease, there were several inconsistencies in defining and categorizing oligometastatic disease. Continued education and training on oligometastatic disease would be also required to build consensus among participating caregivers.
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Affiliation(s)
- Chai Hong Rim
- Department of Radiation Oncology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Won Kyung Cho
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jong Hoon Lee
- Department of Radiation Oncology, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - Young Seok Kim
- Department of Radiation Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Yang-Gun Suh
- Department of Radiation Oncology, Proton Therapy Center, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Kyung Hwan Kim
- Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - Ah Ram Chang
- Department of Radiation Oncology/Cyberknife Center, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Eui Kyu Chie
- Department of Radiation Oncology, Seoul National University College of Medicine, Seoul, Korea
| | - Yong Chan Ahn
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - on behalf of the Oligometastasis Working Group, Korean Cancer Association
- Department of Radiation Oncology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
- Department of Radiation Oncology, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
- Department of Radiation Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- Department of Radiation Oncology, Proton Therapy Center, Research Institute and Hospital, National Cancer Center, Goyang, Korea
- Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
- Department of Radiation Oncology/Cyberknife Center, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
- Department of Radiation Oncology, Seoul National University College of Medicine, Seoul, Korea
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Knox A, Wang T, Shackleton M, Ameratunga M. Symptomatic brain metastases in melanoma. Exp Dermatol 2024; 33:e15075. [PMID: 38610093 DOI: 10.1111/exd.15075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/22/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024]
Abstract
Although clinical outcomes in metastatic melanoma have improved in recent years, the morbidity and mortality of symptomatic brain metastases remain challenging. Response rates and survival outcomes of patients with symptomatic melanoma brain metastases (MBM) are significantly inferior to patients with asymptomatic disease. This review focusses upon the specific challenges associated with the management of symptomatic MBM, discussing current treatment paradigms, obstacles to improving clinical outcomes and directions for future research.
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Affiliation(s)
- Andrea Knox
- Department of Medical Oncology, Alfred Health, Melbourne, Australia
| | - Tim Wang
- Department of Radiation Oncology, Westmead Hospital, Sydney, Australia
| | - Mark Shackleton
- Department of Medical Oncology, Alfred Health, Melbourne, Australia
- School of Translational Medicine, Monash University, Melbourne, Australia
| | - Malaka Ameratunga
- Department of Medical Oncology, Alfred Health, Melbourne, Australia
- School of Translational Medicine, Monash University, Melbourne, Australia
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Frenel JS, Zeghondy J, Guérin-Charbonnel C, Mailliez A, Volant E, Poumeaud F, Patsouris A, Arnedos M, Bailleux C, Cabal J, Galland L, de Nonneville A, Guiu S, Dalenc F, Pistilli B, Bachelot T, Pierga JY, Le Du F, Bocquet F, Larrouquere L, Loirat D. Tucatinib Combination Treatment After Trastuzumab-Deruxtecan in Patients With ERBB2-Positive Metastatic Breast Cancer. JAMA Netw Open 2024; 7:e244435. [PMID: 38568692 PMCID: PMC10993071 DOI: 10.1001/jamanetworkopen.2024.4435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 02/01/2024] [Indexed: 04/05/2024] Open
Abstract
Importance Little is known regarding the outcomes associated with tucatinib combined with trastuzumab and capecitabine (TTC) after trastuzumab-deruxtecan exposure among patients with ERBB2 (previously HER2)-positive metastatic breast cancer (MBC). Objective To investigate outcomes following TTC treatment in patients with ERBB2-positive MBC who had previously received trastuzumab-deruxtecan. Design, Setting, and Participants This cohort study included all patients with MBC who were treated in 12 French comprehensive cancer centers between August 1, 2020, and December 31, 2022. Exposure Tucatinib combined with trastuzumab and capecitabine administered at the recommended dose. Main Outcomes and Measures Clinical end points included progression-free survival (PFS), time to next treatment (TTNT), overall survival (OS), and overall response rate (ORR). Results A total of 101 patients with MBC were included (median age, 56 [range, 31-85] years). The median number of prior treatment lines for metastatic disease at TTC treatment initiation was 4 (range, 2-15), including 82 patients (81.2%) with previous trastuzumab and/or pertuzumab and 94 (93.1%) with previous ado-trastuzumab-emtansine) exposure. The median duration of trastuzumab-deruxtecan treatment was 8.9 (range, 1.4-25.8) months, and 82 patients (81.2%) had disease progression during trastuzumab-deruxtecan treatment, whereas 18 (17.8%) had stopped trastuzumab-deruxtecan for toxic effects and 1 (1.0%) for other reasons. Tucatinib combined with trastuzumab and capecitabine was provided as a third- or fourth-line treatment in 37 patients (36.6%) and was the immediate treatment after trastuzumab-deruxtecan in 86 (85.1%). With a median follow-up of 11.6 (95% CI, 10.5-13.4) months, 76 of 101 patients (75.2%) stopped TTC treatment due to disease progression. The median PFS was 4.7 (95% CI, 3.9-5.6) months; median TTNT, 5.2 (95% CI, 4.5-7.0) months; and median OS, 13.4 (95% CI, 11.1 to not reached [NR]) months. Patients who received TTC immediately after trastuzumab-deruxtecan had a median PFS of 5.0 (95% CI, 4.2-6.0) months; median TTNT of 5.5 (95% CI, 4.8-7.2) months, and median OS of 13.4 (95% CI, 11.9-NR) months. Those who received TTC due to trastuzumab-deruxtecan toxicity-related discontinuation had a median PFS of 7.3 (95% CI, 3.0-NR) months. Best ORR was 29 of 89 patients (32.6%). Sixteen patients with active brain metastasis had a median PFS of 4.7 (95% CI, 3.0-7.3) months, median TTNT of 5.6 (95% CI, 4.4 to NR), and median OS of 12.4 (95% CI, 8.3-NR) months. Conclusions and Relevance In this study, TTC therapy was associated with clinically meaningful outcomes in patients with ERBB2-positive MBC after previous trastuzumab-deruxtecan treatment, including those with brain metastases. Prospective data on optimal drug sequencing in this rapidly changing therapeutic landscape are needed.
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Affiliation(s)
- Jean-Sebastien Frenel
- Department of Medical Oncology, Institut de Cancerologie de l’Ouest, Saint-Herblain, France
| | - Jean Zeghondy
- Department of Medical Oncology, Gustave Roussy Cancer Center, Villejuif, France
| | | | - Audrey Mailliez
- Department of Medical Oncology, Oscar Lambret Comprehensive Cancer Center, Lille, France
| | - Elsa Volant
- Department of Medical Oncology, Institut de Cancerologie de l’Ouest, Saint-Herblain, France
| | | | - Anne Patsouris
- Department of Medical Oncology, Institut de Cancerologie de l’Ouest, Angers, France
| | - Monica Arnedos
- Department of Medical Oncology Bordeaux, Institut Bergonie, Bordeaux, France
| | - Caroline Bailleux
- Department of Medical Oncology, Centre Antoine Lacassagne, Nice, France
| | - Julie Cabal
- Department of Medical Oncology, Centre Eugene Marquis, Rennes, France
| | - Loick Galland
- Department of Medical Oncology, Centre Georges Francois Leclerc, Dijon, France
| | | | - Séverine Guiu
- Department of Medical Oncology, Montpellier Cancer Institute, Montpellier, France
| | | | - Barbara Pistilli
- Department of Medical Oncology, Gustave Roussy Cancer Center, Villejuif, France
| | - Thomas Bachelot
- Department of Medical Oncology, Centre Léon Bérard, Lyon, France
| | | | - Fanny Le Du
- Department of Medical Oncology, Centre Eugene Marquis, Rennes, France
| | - François Bocquet
- Data Factory, Institut de Cancerologie de l’Ouest, Saint-Herblain, France
| | | | - Delphine Loirat
- Department of Medical Oncology, Institut Curie, Paris, France
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Morton R, Webb PM, Na R, Obermair A, Farrell R. Mismatch repair status and surgical approach in apparent early-stage endometrial cancer. Int J Gynecol Cancer 2024; 34:535-543. [PMID: 38431289 DOI: 10.1136/ijgc-2023-005234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024] Open
Abstract
OBJECTIVE To test the hypothesis that mismatch repair (MMR) status (as an accurate surrogate marker for microsatellite stability) modifies the effect of surgical approach on oncological outcome for apparent early-stage endometrial cancer. METHODS Observational data from a large prospective population study on endometrial cancer were analyzed using target trial methodology and doubly robust methods, including propensity score matching and adjusted regression analyses. Laparoscopy was compared with laparotomy, stratified by MMR status on outcomes of recurrence and site, and recurrence-free, overall, and disease-specific survival. RESULTS After matching, there were 400 patients for analysis, with 200 in each treatment group. The mean age was 62 years and mean body mass index was 32 kg/m2. Most patients had early-stage disease (stage I n=362 (90%)) and endometrioid histology (n=363 (91%)). Adjuvant pelvic radiation was administered to 11%, adjuvant vaginal brachytherapy to 13% and adjuvant chemotherapy to 5% of patients. Five-year recurrence-free survival did not differ significantly between modes of surgery across the cohort (p=0.7) or within MMR strata (MMR-proficient p=0.9, MMR-deficient p=0.6). Similarly, there was no significant difference in overall or disease-specific survival by mode of surgery across the cohort or within MMR strata. There was no significant difference in the HR for recurrence for those treated with laparoscopy stratified by MMR status (MMR-proficient HR=0.99 (95% CI 0.28 to 3.58); MMR-deficient HR=0.83 (95% CI 0.24 to 2.87)), even when restricted to endometrioid subtype. CONCLUSION In this study, there was no evidence of a difference in survival outcomes according to mode of surgery and MMR status.
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Affiliation(s)
- Rhett Morton
- Queensland Centre for Gynaecological Cancer Research, Faculty of Medicine, Centre for Clinical Research, Brisbane, Queensland, Australia
| | - Penelope M Webb
- Gynaecological Cancer Group, Population Health Program, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Renhua Na
- Population Health Program, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
- School of Public Health, University of Queensland, Brisbane, Queensland, Australia
| | - Andreas Obermair
- Queensland Centre for Gynaecological Cancer Research, Faculty of Medicine, Centre for Clinical Research, Brisbane, Queensland, Australia
| | - Rhonda Farrell
- Department of Gynaecological Oncology, Chris O'Brien Lifehouse, Sydney, New South Wales, Australia
- Faculty of Medicine, University of Sydney, Sydney, New South Wales, Australia
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45
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Azzimonti M, Margoni M, Zanetta C, Genovese F, Martinelli V, Rocca MA, Baldoli C, Moiola L, Filippi M. Tumefactive demyelinating lesions: a challenging first manifestation of multiple sclerosis. J Neurol 2024; 271:1663-1667. [PMID: 38153549 DOI: 10.1007/s00415-023-12164-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/18/2023] [Accepted: 12/18/2023] [Indexed: 12/29/2023]
Affiliation(s)
- Matteo Azzimonti
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Monica Margoni
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Neurorehabilitation Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Chiara Zanetta
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Neurorehabilitation Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Federica Genovese
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | | | - Maria A Rocca
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Cristina Baldoli
- Neuroradiology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Lucia Moiola
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Massimo Filippi
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy.
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy.
- Neurorehabilitation Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy.
- Vita-Salute San Raffaele University, Milan, Italy.
- Neurophysiology Service, IRCCS San Raffaele Scientific Institute, Milan, Italy.
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Vanoli A, Lenti MV, Sirchia F, Di Sabatino A. Mismatch repair deficiency in multifocal gastric epithelial neoplasia and non-dysplastic glands: Harbinger of Lynch syndrome in an autoimmune gastritis patient. Dig Liver Dis 2024; 56:711-712. [PMID: 38262806 DOI: 10.1016/j.dld.2024.01.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 12/29/2023] [Accepted: 01/08/2024] [Indexed: 01/25/2024]
Affiliation(s)
- Alessandro Vanoli
- Department of Molecular Medicine, Unit of Anatomic Pathology, University of Pavia, Pavia, Italy; Unit of Anatomic Pathology, IRCCS San Matteo Hospital Foundation, Pavia, Italy.
| | - Marco Vincenzo Lenti
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy; Department of Internal Medicine, IRCCS San Matteo Hospital Foundation, Pavia, Italy
| | - Fabio Sirchia
- Department of Molecular Medicine, University of Pavia, Pavia, Italy; Medical Genetic Unit, Department of Diagnostic Medicine, IRCCS San Matteo Hospital Foundation, Pavia, Italy
| | - Antonio Di Sabatino
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy; Department of Internal Medicine, IRCCS San Matteo Hospital Foundation, Pavia, Italy
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Elez E, Kopetz S, Tabernero J, Bekaii-Saab T, Taieb J, Yoshino T, Manji G, Fernandez K, Abbattista A, Zhang X, Morris VK. SEAMARK: phase II study of first-line encorafenib and cetuximab plus pembrolizumab for MSI-H/dMMR BRAFV600E-mutant mCRC. Future Oncol 2024; 20:653-663. [PMID: 37815847 DOI: 10.2217/fon-2022-1249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/11/2023] Open
Abstract
Patients with both BRAF V600E mutations and microsatellite instability-high (MSI-H)/mismatch repair-deficient (dMMR) metastatic colorectal cancer (mCRC) have poor prognosis. Currently, there are no specifically targeted first-line treatment options indicated for patients with mCRC whose tumors harbor both molecular aberrations. Pembrolizumab is a checkpoint inhibitor approved for the treatment of MSI-H/dMMR mCRC, and the BRAF inhibitor encorafenib, in combination with cetuximab, is approved for previously treated BRAF V600E-mutant mCRC. Combination of pembrolizumab with encorafenib and cetuximab may synergistically enhance antitumor activity in patients with BRAF V600E-mutant, MSI-H/dMMR mCRC. SEAMARK is a randomized phase II study comparing the efficacy of the combination of pembrolizumab with encorafenib and cetuximab versus pembrolizumab alone in patients with previously untreated BRAF V600E-mutant, MSI-H/dMMR mCRC.
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Affiliation(s)
- Elena Elez
- Vall d'Hebron Hospital Campus & Vall d'Hebron Institute of Oncology, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Scott Kopetz
- University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Josep Tabernero
- Vall d'Hebron Hospital Campus & Vall d'Hebron Institute of Oncology, Universitat de Vic - Universitat Central de Catalunya, Barcelona, Spain
| | | | - Julien Taieb
- Georges Pompidou European Hospital, Université de Paris, Paris, France
| | | | - Gulam Manji
- Columbia University Irving Medical Center & NewYork-Presbyterian Hospital, New York, NY, USA
| | | | | | | | - Van K Morris
- University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Retif P, Djibo Sidikou A, Waltener A, Letellier R, Al Salah A, Pfletschinger E, Taesch F, Verrecchia-Ramos E, Michel X. Integrating cine EPID, dynamic delivery, and the off-axis Winston-Lutz test to enhance quality control in multiple brain metastasis stereotactic radiotherapy. Phys Med 2024; 120:103343. [PMID: 38547546 DOI: 10.1016/j.ejmp.2024.103343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 03/08/2024] [Accepted: 03/25/2024] [Indexed: 04/19/2024] Open
Abstract
PURPOSE Stereotactic radiotherapy (SRT) has transformed cancer treatment, especially for brain metastases. Ensuring accurate SRT delivery is crucial, with the Winston-Lutz test being an important quality control tool. Off-axis Winston-Lutz (OAWL) tests are designed for accuracy assessment, but most are limited to fixed angles and hampered by local-field shifts caused by suboptimal Multi-Leaf Collimator (MLC) positioning. This study introduces a new OAWL approach for quality control in multi-brain-metastasis SRT. Utilizing cine Electronic Portal Imaging Device (EPID) images, it can be used with dynamic conformal arc (DCA) therapy. However, dynamic OAWL (DOAWL) is prone to more local-field shifts due to dynamic MLC movements. A two-step DOAWL is proposed: step 1 calculates local-field shifts using dynamic MLC movements in the beam-eye view data from the Treatment Planning System (TPS), while step 2 processes cine EPID images with an OAWL algorithm to isolate true deviations. METHODS Validation involved an anthropomorphic head phantom with metallic ball-bearings, Varian TrueBeam STx accelerator delivering six coplanar/non-coplanar DCA beams, cine EPID, and ImageJ's OAWL analysis algorithm. RESULTS Inherent local-field shifts ranged from 0.11 to 0.49 mm; corrected mean/max EPID-measured displacement was 0.34/1.03 mm. Few points exceeded 0.75/1.0-mm thresholds. CONCLUSIONS This two-step DOAWL test merges cine-EPID acquisitions, DCA, OAWL, and advanced analysis and offers effective quality control for multi-brain-metastasis SRT. Its routine implementation may also improve physicist knowledge of the treatment precision of their machines.
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Affiliation(s)
- Paul Retif
- Medical Physics Unit, CHR Metz-Thionville, Metz, France; Université de Lorraine, CNRS, CRAN, F-54000 Nancy, France.
| | | | | | | | | | | | - Fabian Taesch
- Medical Physics Unit, CHR Metz-Thionville, Metz, France
| | | | - Xavier Michel
- Radiation Therapy Department, CHR Metz-Thionville, Metz, France
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Gaikwad U, Bajpai J, Jalali R. Combinatorial approach of immuno-proton therapy in cancer: Rationale and potential impact. Asia Pac J Clin Oncol 2024; 20:188-197. [PMID: 37194387 DOI: 10.1111/ajco.13966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 02/23/2022] [Accepted: 04/02/2023] [Indexed: 05/18/2023]
Abstract
Cancer management is an expansive, growing, and evolving field. In the last decade or so, immunotherapy (IT) and particle beam therapy have made a tremendous impact in this domain. IT has already established itself as the fourth pillar of oncology. Recent emphasis has been centred around combination therapy, postulating additive or multiplicative effects of combining IT with one or more of the three conventional "pillars," that is, surgery, chemotherapy, and radiotherapy. Radio-IT is being increasingly explored and has shown promising outcomes in both preclinical and clinical settings. Particle beam therapy such as protons, when used as the radiotherapeutic modality in conjunction with IT, can potentially limit toxicities and improve this synergism further. Modern proton therapy has demonstrated a reduction in integral dose of radiation and radiation-induced lymphopenia in various sites. Protons, by virtue of their inherent clinically desirable physical and biological characteristics, namely, high linear energy transfer, relative biological effectiveness of range 1.1-1.6, and proven anti-metastatic and immunogenic potential in preclinical studies, might have a superior immunogenic profile than photons. Proton-IT combination is being studied currently by various groups in lung , head neck and brain tumors, and should be evaluated further in other subsites to replicate preclinical outcomes in a clinical setting. In this review, we summarize the currently available evidence for combinatorial approaches and feasibility of proton and IT combination, and thereafter highlight the emerging challenges for practical application of the same in clinics, while also proposing plausible solutions.
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Affiliation(s)
- Utpal Gaikwad
- Department of Radiation Oncology, Apollo Proton Cancer Center, Chennai, India
| | - Jyoti Bajpai
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, India
| | - Rakesh Jalali
- Department of Radiation Oncology, Apollo Proton Cancer Center, Chennai, India
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50
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Zhang D, Cleveland AH, Krimitza E, Han K, Yi C, Stout AL, Zou W, Dorsey JF, Gong Y, Fan Y. Spatial analysis of tissue immunity and vascularity by light sheet fluorescence microscopy. Nat Protoc 2024; 19:1053-1082. [PMID: 38212641 DOI: 10.1038/s41596-023-00941-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 10/25/2023] [Indexed: 01/13/2024]
Abstract
The pathogenesis of cancer and cardiovascular diseases is subjected to spatiotemporal regulation by the tissue microenvironment. Multiplex visualization of the microenvironmental components, including immune cells, vasculature and tissue hypoxia, provides critical information underlying the disease progression and therapy resistance, which is often limited by imaging depth and resolution in large-volume tissues. To this end, light sheet fluorescence microscopy, following tissue clarification and immunostaining, may generate three-dimensional high-resolution images at a whole-organ level. Here we provide a detailed description of light sheet fluorescence microscopy imaging analysis of immune cell composition, vascularization, tissue perfusion and hypoxia in mouse normal brains and hearts, as well as brain tumors. We describe a procedure for visualizing tissue vascularization, perfusion and hypoxia with a transgenic vascular labeling system. We provide the procedures for tissue collection, tissue semi-clearing and immunostaining. We further describe standard methods for analyzing tissue immunity and vascularity. We anticipate that this method will facilitate the spatial illustration of structure and function of the tissue microenvironmental components in cancer and cardiovascular diseases. The procedure requires 1-2 weeks and can be performed by users with expertise in general molecular biology.
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Affiliation(s)
- Duo Zhang
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Abigail H Cleveland
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Elisavet Krimitza
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Katherine Han
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Chenlong Yi
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Andrea L Stout
- Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA, USA
| | - Wei Zou
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Jay F Dorsey
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - Yanqing Gong
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Yi Fan
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA.
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