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Sarnat HB, Chan ES, Ng D, Yu W. Maturation of metastases in peripheral neuroblastic tumors (neuroblastoma) of children. J Neuropathol Exp Neurol 2023; 82:853-864. [PMID: 37682248 DOI: 10.1093/jnen/nlad068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023] Open
Abstract
Peripheral neuroblastic tumors of childhood exhibit 3 principal neural crest lineages: primitive neuroblastoma, ganglioneuroblastoma, and ganglioneuroma. They are unique in undergoing maturation of neurons (ganglion cells) and Schwann cells, thereby recapitulating normal fetal neuronal development in the brain. Precision in estimating neurogenesis is enhanced by immunoreactivities of markers of neuronal maturation. Whether organ tissue factors in different sites of metastases influence rates of maturation and whether metastases are similar to their primary neuroblastic tumor are incompletely documented. Four young children, 1 with a mixed primary adrenal tumor and 3 with metastases were studied at surgery or autopsy. Immunocytochemical reactivities included microtubule-associated protein-2, synaptophysin, chromogranin-A, somatostatin, keratan sulfate, vimentin, S-100β protein, and PHOX2B. Primary tumors were non-uniform with regions of either poor or enhanced maturation. Both neuronal and Schwannian lineages were represented in each tumor type but differed in proportions. Bi- or multi-nucleated ganglion cells matured equal to mononuclear forms. Ganglion cell maturation was similar in metastases regardless of the target organ. Metastases resembled primary tumors. Immunocytochemical markers of neuronal and of Schwann cell maturation provide greater diagnostic precision to supplement histological criteria. Interval between diagnosis of primary tumor and metastases, metastatic target tissues, and chemotherapy over an interval of time do not appear to influence neuroblastic or Schwann cell differentiation.
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Affiliation(s)
- Harvey B Sarnat
- Department of Paediatrics, University of Calgary Cumming School of Medicine and Alberta Children's Hospital Research Institute (Owerko Centre), Calgary, Alberta, Canada
- Department of Pathology and Laboratory Medicine (Neuropathology), University of Calgary Cumming School of Medicine and Alberta Children's Hospital Research Institute (Owerko Centre), Calgary, Alberta, Canada
- Department of Clinical Neurosciences, University of Calgary Cumming School of Medicine and Alberta Children's Hospital Research Institute (Owerko Centre), Calgary, Alberta, Canada
| | - Elaine S Chan
- Department of Pathology and Laboratory Medicine (Paediatric Anatomical Pathology), University of Calgary Cumming School of Medicine and Alberta Children's Hospital Research Institute (Owerko Centre), Calgary, Alberta, Canada
| | - Denise Ng
- Department of Pathology and Laboratory Medicine (Neuropathology), University of Calgary Cumming School of Medicine and Alberta Children's Hospital Research Institute (Owerko Centre), Calgary, Alberta, Canada
| | - Weiming Yu
- Department of Pathology and Laboratory Medicine (Paediatric Anatomical Pathology), University of Calgary Cumming School of Medicine and Alberta Children's Hospital Research Institute (Owerko Centre), Calgary, Alberta, Canada
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Ooms AH, Vujanić GM, D’Hooghe E, Collini P, L’Herminé-Coulomb A, Vokuhl C, Graf N, van den Heuvel-Eibrink MM, de Krijger RR. Renal Tumors of Childhood-A Histopathologic Pattern-Based Diagnostic Approach. Cancers (Basel) 2020; 12:cancers12030729. [PMID: 32204536 PMCID: PMC7140051 DOI: 10.3390/cancers12030729] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/04/2020] [Accepted: 03/07/2020] [Indexed: 12/15/2022] Open
Abstract
Renal tumors comprise approximately 7% of all malignant pediatric tumors. This is a highly heterogeneous group of tumors, each with its own therapeutic management, outcome, and association with germline predispositions. Histopathology is the key in establishing the correct diagnosis, and therefore pathologists with expertise in pediatric oncology are needed for dealing with these rare tumors. While each tumor shows different histologic features, they do have considerable overlap in cell type and histologic pattern, making the diagnosis difficult to establish, if based on routine histology alone. To this end, ancillary techniques, such as immunohistochemistry and molecular analysis, can be of great importance for the correct diagnosis, resulting in appropriate treatment. To use ancillary techniques cost-effectively, we propose a pattern-based approach and provide recommendations to aid in deciding which panel of antibodies, supplemented by molecular characterization of a subset of genes, are required.
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Affiliation(s)
- Ariadne H.A.G. Ooms
- Princess Máxima Center for pediatric oncology, 3584 CS Utrecht, The Netherlands (M.M.v.d.H.-E.)
- Pathan B.V., 3045 PM Rotterdam, The Netherlands
| | | | - Ellen D’Hooghe
- Department of Pathology, Oslo University Hospital, Rikshospitalet, 0372 Oslo, Norway;
| | - Paola Collini
- Department of Diagnostic Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy;
| | - Aurore L’Herminé-Coulomb
- Sorbonne Université, Department of Pathology, Hôpital Armand Trousseau, Hopitaux Universitaires Est Parisien, 75012 Paris, France;
| | - Christian Vokuhl
- Section of Pediatric Pathology, Department of Pathology, University Hospital Bonn, 53127 Bonn, Germany;
| | - Norbert Graf
- Department of Pediatric Oncology & Hematology, Saarland University, D-66421 Homburg, Germany;
| | | | - Ronald R. de Krijger
- Princess Máxima Center for pediatric oncology, 3584 CS Utrecht, The Netherlands (M.M.v.d.H.-E.)
- Department of Pathology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
- Correspondence: ; Tel.: +31-088-9727272
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Uemura S, Ishida T, Thwin KKM, Yamamoto N, Tamura A, Kishimoto K, Hasegawa D, Kosaka Y, Nino N, Lin KS, Takafuji S, Mori T, Iijima K, Nishimura N. Dynamics of Minimal Residual Disease in Neuroblastoma Patients. Front Oncol 2019; 9:455. [PMID: 31214500 PMCID: PMC6558004 DOI: 10.3389/fonc.2019.00455] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Accepted: 05/14/2019] [Indexed: 12/11/2022] Open
Abstract
Neuroblastoma is a common extracranial solid tumor of neural crest (NC) origin that accounts for up to 15% of all pediatric cancer deaths. The disease arises from a transient population of NC cells that undergo an epithelial-mesenchymal transition (EMT) and generate diverse cell-types and tissues. Patients with neuroblastoma are characterized by their extreme heterogeneity ranging from spontaneous regression to malignant progression. More than half of newly diagnosed patients present highly metastatic tumors and are stratified into a high-risk group with dismal outcome. As many as 20% of high-risk patients have residual disease that is refractory or progressive during induction chemotherapy. Although a majority of high-risk patients achieve remission, larger part of those patients has minimal residual disease (MRD) that causes relapse even after additional consolidation therapy. MRD is composed of drug-resistant tumor cells and dynamically presented as cancer stem cells (CSCs) in residual tumors, circulating tumor cells (CTCs) in peripheral blood (PB), and disseminated tumor cells (DTCs) in bone marrow (BM) and other metastatic sites. EMT appears to be a key mechanism for cancer cells to acquire MRD phenotypes and malignant aggressiveness. Due to the restricted availability of residual tumors, PB and BM have been used to isolate and analyze CTCs and DTCs to evaluate MRD in cancer patients. In addition, recent technical advances make it possible to use circulating tumor DNA (ctDNA) shed from tumor cells into PB for MRD evaluation. Because MRD can be detected by tumor-specific antigens, genetic or epigenetic changes, and mRNAs, numerous assays using different methods and samples have been reported to detect MRD in cancer patients. In contrast to the tumor-specific gene-rearrangement-positive acute lymphoblastic leukemia (ALL) and the oncogenic fusion-gene-positive chronic myelogenous leukemia (CML) and several solid tumors, the clinical significance of MRD remains to be established in neuroblastoma. Given the extreme heterogeneity of neuroblastoma, dynamics of MRD in neuroblastoma patients will hold a key to the clinical validation. In this review, we summarize the biology and detection methods of cancer MRD in general and evaluate the available assays and clinical significance of neuroblastoma MRD to clarify its dynamics in neuroblastoma patients.
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Affiliation(s)
- Suguru Uemura
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Toshiaki Ishida
- Department of Hematology and Oncology, Kobe Children's Hospital, Kobe, Japan
| | - Khin Kyae Mon Thwin
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Nobuyuki Yamamoto
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Akihiro Tamura
- Department of Hematology and Oncology, Kobe Children's Hospital, Kobe, Japan
| | - Kenji Kishimoto
- Department of Hematology and Oncology, Kobe Children's Hospital, Kobe, Japan
| | - Daiichiro Hasegawa
- Department of Hematology and Oncology, Kobe Children's Hospital, Kobe, Japan
| | - Yoshiyuki Kosaka
- Department of Hematology and Oncology, Kobe Children's Hospital, Kobe, Japan
| | - Nanako Nino
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Kyaw San Lin
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Satoru Takafuji
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takeshi Mori
- Department of Hematology and Oncology, Kobe Children's Hospital, Kobe, Japan
| | - Kazumoto Iijima
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Noriyuki Nishimura
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
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HuC/D expression in small round cell tumors and neuroendocrine tumors: a useful tool for distinguishing neuroblastoma from childhood small round cell tumors. Hum Pathol 2019; 85:162-167. [DOI: 10.1016/j.humpath.2018.11.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 10/30/2018] [Accepted: 11/02/2018] [Indexed: 12/13/2022]
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Hung YP, Lee JP, Bellizzi AM, Hornick JL. PHOX2B reliably distinguishes neuroblastoma among small round blue cell tumours. Histopathology 2017. [DOI: 10.1111/his.13288] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Yin P Hung
- Department of Pathology; Brigham and Women's Hospital and Harvard Medical School; Boston MA USA
| | - John P Lee
- Department of Pathology; University of Iowa Hospitals and Clinics; Iowa City IA USA
| | - Andrew M Bellizzi
- Department of Pathology; University of Iowa Hospitals and Clinics; Iowa City IA USA
| | - Jason L Hornick
- Department of Pathology; Brigham and Women's Hospital and Harvard Medical School; Boston MA USA
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Abstract
Primitive round cell neoplasms (small round cell tumors) of soft tissue are a diverse group of malignant tumors composed of monotonous undifferentiated cells with high nuclear-cytoplasmic ratio. Many occur more frequently, although not exclusively, in childhood. As tumors with primitive round cell morphology are seen in virtually every basic tumor category, the diagnosis of small round cell neoplasms requires the use of ancillary diagnostic techniques: immunohistochemistry and often molecular genetics. The principal tumors in this group include Ewing sarcoma/primitive neuroectodermal tumor, desmoplastic small round cell tumor, alveolar rhabdomyosarcoma, poorly differentiated synovial sarcoma, neuroblastoma, and ganglioneuroblastoma.
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Affiliation(s)
- Khin Thway
- Department of Histopathology, Royal Marsden Hospital, The Royal Marsden NHS Foundation Trust, 203 Fulham Road, London SW3 6JJ, UK
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Ikram F, Ackermann S, Kahlert Y, Volland R, Roels F, Engesser A, Hertwig F, Kocak H, Hero B, Dreidax D, Henrich KO, Berthold F, Nürnberg P, Westermann F, Fischer M. Transcription factor activating protein 2 beta (TFAP2B) mediates noradrenergic neuronal differentiation in neuroblastoma. Mol Oncol 2015; 10:344-59. [PMID: 26598443 DOI: 10.1016/j.molonc.2015.10.020] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 10/05/2015] [Accepted: 10/23/2015] [Indexed: 10/22/2022] Open
Abstract
Neuroblastoma is an embryonal pediatric tumor that originates from the developing sympathetic nervous system and shows a broad range of clinical behavior, ranging from fatal progression to differentiation into benign ganglioneuroma. In experimental neuroblastoma systems, retinoic acid (RA) effectively induces neuronal differentiation, and RA treatment has been therefore integrated in current therapies. However, the molecular mechanisms underlying differentiation are still poorly understood. We here investigated the role of transcription factor activating protein 2 beta (TFAP2B), a key factor in sympathetic nervous system development, in neuroblastoma pathogenesis and differentiation. Microarray analyses of primary neuroblastomas (n = 649) demonstrated that low TFAP2B expression was significantly associated with unfavorable prognostic markers as well as adverse patient outcome. We also found that low TFAP2B expression was strongly associated with CpG methylation of the TFAP2B locus in primary neuroblastomas (n = 105) and demethylation with 5-aza-2'-deoxycytidine resulted in induction of TFAP2B expression in vitro, suggesting that TFAP2B is silenced by genomic methylation. Tetracycline inducible re-expression of TFAP2B in IMR-32 and SH-EP neuroblastoma cells significantly impaired proliferation and cell cycle progression. In IMR-32 cells, TFAP2B induced neuronal differentiation, which was accompanied by up-regulation of the catecholamine biosynthesizing enzyme genes DBH and TH, and down-regulation of MYCN and REST, a master repressor of neuronal genes. By contrast, knockdown of TFAP2B by lentiviral transduction of shRNAs abrogated RA-induced neuronal differentiation of SH-SY5Y and SK-N-BE(2)c neuroblastoma cells almost completely. Taken together, our results suggest that TFAP2B is playing a vital role in retaining RA responsiveness and mediating noradrenergic neuronal differentiation in neuroblastoma.
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Affiliation(s)
- Fakhera Ikram
- Department of Pediatric Oncology and Hematology, University Children's Hospital of Cologne, Germany; Center for Molecular Medicine Cologne (CMMC), University of Cologne, Germany; Cologne Center for Genomics (CCG), University of Cologne, Germany
| | - Sandra Ackermann
- Department of Pediatric Oncology and Hematology, University Children's Hospital of Cologne, Germany; Center for Molecular Medicine Cologne (CMMC), University of Cologne, Germany
| | - Yvonne Kahlert
- Department of Pediatric Oncology and Hematology, University Children's Hospital of Cologne, Germany; Center for Molecular Medicine Cologne (CMMC), University of Cologne, Germany
| | - Ruth Volland
- Department of Pediatric Oncology and Hematology, University Children's Hospital of Cologne, Germany; Center for Molecular Medicine Cologne (CMMC), University of Cologne, Germany
| | - Frederik Roels
- Department of Pediatric Oncology and Hematology, University Children's Hospital of Cologne, Germany; Center for Molecular Medicine Cologne (CMMC), University of Cologne, Germany
| | - Anne Engesser
- Department of Pediatric Oncology and Hematology, University Children's Hospital of Cologne, Germany; Center for Molecular Medicine Cologne (CMMC), University of Cologne, Germany
| | - Falk Hertwig
- Department of Pediatric Oncology and Hematology, University Children's Hospital of Cologne, Germany; Center for Molecular Medicine Cologne (CMMC), University of Cologne, Germany
| | - Hayriye Kocak
- Department of Pediatric Oncology and Hematology, University Children's Hospital of Cologne, Germany; Center for Molecular Medicine Cologne (CMMC), University of Cologne, Germany
| | - Barbara Hero
- Department of Pediatric Oncology and Hematology, University Children's Hospital of Cologne, Germany; Center for Molecular Medicine Cologne (CMMC), University of Cologne, Germany
| | - Daniel Dreidax
- Division Neuroblastoma Genomics (B087), German Cancer Research Center, Heidelberg, Germany
| | - Kai-Oliver Henrich
- Division Neuroblastoma Genomics (B087), German Cancer Research Center, Heidelberg, Germany
| | - Frank Berthold
- Department of Pediatric Oncology and Hematology, University Children's Hospital of Cologne, Germany; Center for Molecular Medicine Cologne (CMMC), University of Cologne, Germany
| | - Peter Nürnberg
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Germany; Cologne Center for Genomics (CCG), University of Cologne, Germany
| | - Frank Westermann
- Division Neuroblastoma Genomics (B087), German Cancer Research Center, Heidelberg, Germany
| | - Matthias Fischer
- Department of Pediatric Oncology and Hematology, University Children's Hospital of Cologne, Germany; Center for Molecular Medicine Cologne (CMMC), University of Cologne, Germany; Max Planck Institute for Metabolism Research, Cologne, Germany.
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Magro G, Longo FR, Angelico G, Spadola S, Amore FF, Salvatorelli L. Immunohistochemistry as potential diagnostic pitfall in the most common solid tumors of children and adolescents. Acta Histochem 2015; 117:397-414. [PMID: 25881477 DOI: 10.1016/j.acthis.2015.03.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 03/19/2015] [Accepted: 03/25/2015] [Indexed: 12/11/2022]
Abstract
Making a correct diagnosis when dealing with a small round blue cell tumor (SRBCT) of children and adolescents may be relatively straightforward if the tumor arises in the typical clinical setting and the classic pathologic features are all recognizable. However it is widely known that diagnostic difficulties may arise because of: (i) many tumors share overlapping morphological and/or immunohistochemical features; (ii) considerable clinical, pathologic, and immunohistochemical variations do exist; (iii) the increasing use of small biopsies in daily practice makes the diagnosis of these neoplasms more challenging. Accordingly, immunohistochemical analyses are currently mandatory in establishing the correct diagnosis. In this regard there is the need to identify more sensitive and specific immunomarkers useful in the distinction of the several tumor entities. Over the last decades, several markers, such as CD99, WT1 protein, desmin, myogenin, NB84, and INI1 have been identified, providing a considerable help in recognition of the most common solid tumors (ESW/pPNET, rhabdomyosarcoma, neuroblastoma, Wilms' tumor, desmoplastic small round cell tumor; malignant rhabdoid tumor) in children and adolescents. However, at the same time, their unusual, unexpected expression can result in a misinterpretation of the immunohistochemical results, especially by pathologists who are not familiar with oncologic pediatric pathology. Therefore the present review focuses on the potential immunohistochemical pitfalls which should be kept in mind by pathologists to prevent diagnostic errors when dealing with SRBCTs.
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Affiliation(s)
- Gaetano Magro
- Department of Medical and Surgical Sciences and Advanced Technologies, "G.F. Ingrassia", Azienda Ospedaliero-Universitaria "Policlinico-Vittorio Emanuele", Anatomic Pathology Section, University of Catania, Catania, Italy.
| | - Francesca Romana Longo
- Department of Medical and Surgical Sciences and Advanced Technologies, "G.F. Ingrassia", Azienda Ospedaliero-Universitaria "Policlinico-Vittorio Emanuele", Anatomic Pathology Section, University of Catania, Catania, Italy
| | - Giuseppe Angelico
- Department of Medical and Surgical Sciences and Advanced Technologies, "G.F. Ingrassia", Azienda Ospedaliero-Universitaria "Policlinico-Vittorio Emanuele", Anatomic Pathology Section, University of Catania, Catania, Italy
| | - Saveria Spadola
- Department of Medical and Surgical Sciences and Advanced Technologies, "G.F. Ingrassia", Azienda Ospedaliero-Universitaria "Policlinico-Vittorio Emanuele", Anatomic Pathology Section, University of Catania, Catania, Italy
| | - Flavia Francesca Amore
- Department of Medical and Surgical Sciences and Advanced Technologies, "G.F. Ingrassia", Azienda Ospedaliero-Universitaria "Policlinico-Vittorio Emanuele", Anatomic Pathology Section, University of Catania, Catania, Italy
| | - Lucia Salvatorelli
- Department of Medical and Surgical Sciences and Advanced Technologies, "G.F. Ingrassia", Azienda Ospedaliero-Universitaria "Policlinico-Vittorio Emanuele", Anatomic Pathology Section, University of Catania, Catania, Italy
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PHOX2B immunolabeling: a novel tool for the diagnosis of undifferentiated neuroblastomas among childhood small round blue-cell tumors. Am J Surg Pathol 2012; 36:1141-9. [PMID: 22790854 DOI: 10.1097/pas.0b013e31825a6895] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Peripheral neuroblastic tumors are the most commonly occurring extracranial tumors in children. Although a reliable diagnosis is achievable in the majority of cases, diagnosis of a minority of peripheral neuroblastic tumor cases (especially undifferentiated neuroblastoma) poses a challenge compared with that of other pediatric small round blue-cell tumors. A panel of immunohistochemical markers and fusion transcripts is available for the diagnosis of such tumors, but the markers for neuroblastoma lack specificity and sensitivity. As the transcription factor PHOX2B is highly specific for the peripheral autonomic nervous system from which peripheral neuroblastic tumors are derived, we have assessed PHOX2B immunolabeling as a diagnostic tool in pediatric small round blue-cell tumors. We observed PHOX2B expression in all peripheral neuroblastic tumors, paragangliomas, and pheochromocytomas tested but in no other pediatric tumors among the 388 cases studied by expression microarray and the 109 cases studied by immunohistochemical analysis. We then assessed the results of PHOX2B immunohistochemistry in 12 cases of undifferentiated pediatric neoplasms: PHOX2B was expressed in 6/6 undifferentiated neuroblastomas and in no other small round blue-cell tumors. Finally, we showed that PHOX2B immunohistochemical analysis improves the diagnosis of undifferentiated neuroblastoma with high specificity and sensitivity.
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Krishnan C, Twist CJ, Fu T, Arber DA. Detection of isolated tumor cells in neuroblastoma by immunohistochemical analysis in bone marrow biopsy specimens: improved detection with use of beta-catenin. Am J Clin Pathol 2009; 131:49-57. [PMID: 19095565 DOI: 10.1309/ajcpajodrjyd3ob2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Evaluation of the bone marrow is a critical component of accurate staging and surveillance for recurrent disease in neuroblastoma. The value of routine immunohistochemical analysis of otherwise histologically negative bone marrow biopsy specimens has not been adequately evaluated. By using synaptophysin, chromogranin, and beta-catenin, immunohistochemical analysis performed on otherwise histologically negative bone marrow specimens identified isolated tumor cells (ITCs) in 9.1%, 5.0%, and 10.0% of 220 biopsy specimens, respectively. Overall survival, as estimated by the Kaplan-Meier method, was not significantly different between patients with and without ITCs (P = .357). Of the immunohistochemical markers evaluated, beta-catenin showed the greatest sensitivity for identifying ITCs in the bone marrow and showed reactivity in primary tumor samples. We found that the presence of ITCs identified by immunohistochemical analysis may predict the persistence of disease but does not show significant overall survival differences. We also identified beta-catenin as a sensitive immunohistochemical marker of primary and metastatic neuroblastoma.
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Affiliation(s)
| | - Clare J. Twist
- Pediatrics, Division of Hematology/Oncology Lucile Packard Children’s Hospital
| | - Teresa Fu
- Stanford University School of Medicine, Stanford, CA
| | - Daniel A. Arber
- Departments of Pathology, Stanford University Medical Center
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A comparative immunohistochemical analysis of small round cell tumors of childhood: utility of peripherin and alpha-internexin as markers for neuroblastomas. Appl Immunohistochem Mol Morphol 2008; 16:344-8. [PMID: 18528283 DOI: 10.1097/pai.0b013e318165fe78] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Immunohistochemical study of neuroblastomas, Ewing sarcomas, rhabdomyosarcomas, and Wilms tumors demonstrate specific expression of peripherin and alpha-internexin in 20/22 and 6/22 cases of neuroblastomas, respectively. Microtubule-associated protein 1B (MAP 1B) was strongly and diffusely expressed in all 22 cases of neuroblastomas, but was also focally or multifocally expressed in 9/12 rhabdomyosarcomas and also in the blastema and stroma of 8/11 Wilms tumors. All rhabdomyosarcomas strongly and diffusely express nestin, but this marker was also expressed, multifocally, in 15/22 neuroblastomas and also in the blastema and stroma of all 11 Wilms tumors. NeuN, a neuron-specific nuclear protein, was expressed focally in 1 case of neuroblastoma and diffusely in 2 other cases (3/22). Surprisingly, it was also focally expressed in 2/12 rhabdomyosarcomas. In contrast, all 7 cases of Ewing sarcoma were negative for peripherin, MAP 1B, alpha-internexin, NeuN, and nestin. Thirteen neuroblastomas were also immunostained for neurofilaments, tyrosinase, and anaplastic lymphoma kinase 1 (ALK 1), and were found to be negative for these markers. Our results confirm that peripherin and alpha-internexin are neuroblastoma markers useful for the differential diagnostic work-up of small round cell tumors of childhood. Strong diffuse immunoreactivity for MAP 1B favors a diagnosis of neuroblastoma, whereas strong diffuse immunoreactivity for nestin favors a diagnosis of rhabdomyosarcoma.
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13
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Wick MR. Immunohistochemical approaches to the diagnosis of undifferentiated malignant tumors. Ann Diagn Pathol 2008; 12:72-84. [DOI: 10.1016/j.anndiagpath.2007.10.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Carvalho ADC, Parra ER, Zerbini MC, Alves VAF, Capelozzi VL, Antonangelo L. Morphometric evaluation of NB84, synaptophysin and AgNOR is useful for the histological diagnosis and prognosis in peripheral neuroblastic tumors (pNTs). Clinics (Sao Paulo) 2007; 62:731-40. [PMID: 18209916 DOI: 10.1590/s1807-59322007000600013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2007] [Accepted: 09/09/2007] [Indexed: 03/31/2023] Open
Abstract
OBJECTIVE To study the importance of NB84, synaptophysin and AgNOR and explore the quantitative association of these factors with diagnosis and outcome as well as the association between NB84 and AgNOR and other tumor and stromal factors in twenty-eight peripheral neuroblastic tumors. METHODS We assessed AgNORs, NB84, synaptophysin and several other markers in tumor tissues from 28 patients with primary neuroblastic tumors. The treatment included: surgery for stage 1, chemotherapy and bone marrow transplantation for most of stages 3 and 4. Histochemistry, immunohistochemistry and morphometry were used to evaluate the amount of tumor staining for AgNOR, NB84 and synaptophysin; the outcome for our study was survival time until death due to recurrent neuroblastic tumors. RESULTS Only stage (p<0.01), AgNOR (p<0.01), NB84 (p<0.01) and synaptophysin (p=0.01) reached statistical significance as prognostic indicators. CONCLUSIONS Determination of NB84 and synaptophysin are useful tools for the diagnosis of peripheral neuroblastic tumors The association of the evaluation of AgNOR expression by the tumor cells may provide an important contribution to the prognostic evaluation and management approach of the patients.
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Bomken SN, Redfern K, Wood KM, Reid MM, Tweddle DA. Limitations in the ability of NB84 to detect metastatic neuroblastoma cells in bone marrow. J Clin Pathol 2006; 59:927-9. [PMID: 16565222 PMCID: PMC1860465 DOI: 10.1136/jcp.2005.035444] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND The accurate assessment of metastases is an essential component of the staging process for children with neuroblastoma. AIMS To study the sensitivity of the immunohistochemical marker neuroblastoma 84 (NB84) for the detection of bone marrow infiltrates in children with stage 4 neuroblastoma. METHODS Primary tumour specimens, bone marrow trephine biopsy specimens and lymph node metastases, taken from children with neuroblastoma that had metastasised to bone marrow, were assessed with a panel of commonly used immunohistochemical markers for neuroblastoma. A comparison was drawn between the sensitivity of the marker NB84 for primary tumours and for bone marrow metastases. RESULTS NB84 immunolabelled all pre-chemotherapy and post-chemotherapy (n = 24) paired primary tumour specimens, as well as each of a further 20, unpaired, pre-chemotherapy primary tumour specimens. It also labelled all (n = 4) lymph node metastases. Immunolabelling of bone marrow trephine biopsy specimens (21/33) was less sensitive. Of 16 primary tumour specimens with a paired bone marrow trephine biopsy specimen, all immunostained positive, whereas only 62.5% of bone marrow biopsy specimens immunostained positive for NB84. The number of bone marrow biopsy specimens immunostaining for NB84 was significantly lower than the number of paired primary tumour specimens (p = 0.041). CONCLUSIONS NB84 remains a useful marker for the diagnosis of neuroblastoma in primary tumour specimens, but not for neuroblastoma that has metastasised to bone marrow.
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Affiliation(s)
- S N Bomken
- Department of Paediatric Oncology, Sir James Spence Institute, Royal Victoria Infirmary, Newcastle upon Tyne, UK
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16
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Fisher C. The comparative roles of electron microscopy and immunohistochemistry in the diagnosis of soft tissue tumours. Histopathology 2006; 48:32-41. [PMID: 16359535 DOI: 10.1111/j.1365-2559.2005.02287.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Electron microscopy has contributed to the diagnosis of soft tissue tumours for four decades, and immunohistochemistry for two. Because of its relative ease of use and interpretation, the latter technique has become extensively and routinely applied to identify lines of differentiation in benign soft tissue tumours and in sarcomas. The use of electron microscopy has declined but retains a role because few antibodies are wholly specific or fully sensitive, some tumours are polyphenotypic or divergent in differentiation, and others have no specific antigens. Immunohistochemistry is superior in diagnosis of smooth muscle tumours, small round cell tumours, sarcomas with epithelioid morphology, and most synovial sarcomas. Electron microscopy is of particular value for peripheral nerve sheath tumours, marker-negative synovial sarcomas, pleomorphic sarcomas and mesotheliomas. As with all adjunctive techniques, immunohistochemistry and electron microscopy should be used in a complementary fashion according to the nature of the diagnostic problem.
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Affiliation(s)
- C Fisher
- Department of Histopathology, Royal Marsden Hospital/Institute of Cancer Research, Fulham Road, London SW3 6JJ, UK.
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17
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Sebire NJ, Gibson S, Rampling D, Williams S, Malone M, Ramsay AD. Immunohistochemical findings in embryonal small round cell tumors with molecular diagnostic confirmation. Appl Immunohistochem Mol Morphol 2005; 13:1-5. [PMID: 15722786 DOI: 10.1097/00129039-200503000-00001] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The diagnosis of pediatric tumors relies heavily on immunohistochemical staining of small tissue biopsies, since many entities share a "small blue cell" phenotype. More recently, molecular genetic analysis for detection of specific gene fusion products has become available. With the increased use of such molecular techniques, the authors have noted that tumors with proven molecular diagnoses can exhibit unusual patterns of immunohistochemical staining. This study examines pediatric tumors with a "small blue cell" phenotype in which molecular diagnoses were available where applicable. A panel of immunohistochemical stains was performed (S100, CD56, NB84, CD99 [MIC2], Bcl-2, CD117, CD34, desmin, MNF116, and WT1). In the 370 sections from 37 cases, all primitive neuroectodermal tumors, with and without the presence of t(11;22), demonstrated uniform membranous membrane staining with CD99 (MIC2) and focal staining with CD56, NB84, MNF116, and WT1. All rhabdomyosarcomas, both alveolar and embryonal, demonstrated uniform desmin, CD56, and cytoplasmic WT1 immunostaining. Desmoplastic small round cell tumors showed positive cytokeratin staining, with half having "dot-like" cytoplasmic desmin and WT1 positivity; some showed focal positivity for NB84, CD99, and Bcl-2. The "undifferentiated" sarcomas showed the widest range of staining, with no marker staining all cases. Neuroblastomas exhibited uniform strong staining for CD56 and NB84 and marked cytoplasmic Bcl-2 positivity, and some cases showed cytoplasmic WT1 expression. Blastematous Wilms' tumors showed uniform strong membranous staining for CD56, uniform cytoplasmic staining for Bcl-2, and nuclear expression of WT1. Embryonal pediatric malignancies can demonstrate apparently nonspecific expression patterns for several antigens, which may reflect developmental immaturity rather than specific differentiation pathways.
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Affiliation(s)
- Neil J Sebire
- Department of Paediatric Pathology, Great Ormond Street Hospital, London, United Kingdom.
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18
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Suzuki M, Uchida K, Taniguchi K, Yamaguchi R, Tateyama S. Peripheral neuroblastoma in a young labrador retriever. J Vet Med Sci 2003; 65:271-4. [PMID: 12655127 DOI: 10.1292/jvms.65.271] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A 2-year-old Labrador Retriever developed atrophy of the right temporal muscle, subsequently showed generalized seizure and died 2 months after the clinical onset. Postmortem examination revealed the tumor masses in the right mandibulopharyngeal area, nasopharynx and intracranial space. Histopathologically, these tumor masses were composed of small round neoplastic cells and neuropil-like stroma separated by fibrovascular septa. In the neoplastic masses, small neoplastic cells with round to oval hyperchromatic nuclei and scanty cytoplasm predominated, and angulated neoplastic cells with larger nuclei and moderate cytoplasm were scattered. Immunohistochemically, neoplastic cells were positive for neuron specific enorase, neurofilament protein, chromogranin A, synaptophysin and tyrosine hydroxylase. Based on these findings, this case was diagnosed as peripheral neuroblastoma, presumably originated from the sympathetic ganglion, maybe right craninal cervical ganglion.
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Affiliation(s)
- Mari Suzuki
- Department of Veterinary Pathology, Faculty of Agriculture, Miyazaki University, Miyazaki, Japan
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19
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Barrett AW, Morgan M, Ramsay AD, Farthing PM, Newman L, Speight PM. A clinicopathologic and immunohistochemical analysis of melanotic neuroectodermal tumor of infancy. ORAL SURGERY, ORAL MEDICINE, ORAL PATHOLOGY, ORAL RADIOLOGY, AND ENDODONTICS 2002; 93:688-98. [PMID: 12142876 DOI: 10.1067/moe.2002.124000] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
OBJECTIVE The purpose of this study was to review the features of 8 cases of melanotic neuroectodermal tumor of infancy (MNTI) of the jaws with respect to the expression of NB84, CD99, PGP 9.5, specific cytokeratins, and Ki-67, markers not previously reported in this entity. STUDY DESIGN A clinicopathologic and immunohistochemical analysis of MNTIs in 8 children was undertaken. RESULTS Patients were aged 2(1/2) months to 14 months. Seven were males. Seven lesions affected the maxilla. Microscopically, collections of larger, melanocyte-like cells were admixed with smaller, neuroblast-like cells. All MNTIs contained melanin; although most showed cellular atypia, mitoses were infrequent (<2 per 10 high-power fields). However, in one lesion in which the melanocyte-like cells appeared less differentiated, 7 mitoses per 10 high-power fields were counted. The larger cells expressed cytokeratins 7 (4/8), 8 (8/8), 18 (6/8), and 19 (3/8); PGP 9.5; neuron-specific enolase (6/8); S100; HMB45; and chromogranin A (2/8). The small cells expressed CD56 (7/8), neuron-specific enolase (7/8), synaptophysin (3/8), PGP 9.5 (3/8), and chromogranin A (2/8). No MNTIs expressed NB84. The most mitotically active tumor was the only one to show membrane expression of CD99 (by both cell populations), have a detectable Ki-67-positive fraction (25% in both the large- and small-cell components), behave aggressively, and require bilateral maxillectomy. All other MNTIs responded to local excision, and none metastasized. CONCLUSIONS Most MNTIs are benign and respond to conservative excision. Histology is an unreliable means of predicting clinical behavior, but this study has identified some morphologic and phenotypic features that may indicate a more aggressive lesion.
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Affiliation(s)
- A W Barrett
- Oral and Maxillofacial Pathology Unit, Eastman Denatal Institute for Oral Healthcare Sciences, University College, London, United Kingdom.
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20
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Brahmi U, Rajwanshi A, Joshi K, Ganguly NK, Vohra H, Gupta SK, Dey P. Role of immunocytochemistry and DNA flow cytometry in the fine-needle aspiration diagnosis of malignant small round-cell tumors. Diagn Cytopathol 2001; 24:233-9. [PMID: 11285617 DOI: 10.1002/dc.1050] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In the present study, DNA flow cytometry (FCM) and immunocytochemistry (ICC) with a selected panel of antibodies were performed on 51 cases of malignant tumors which were referred for fine-needle aspiration biopsy (FNAB) to our Department of Cytology for the last 2 yr. Twelve cases were diagnosed as neuroblastoma, 16 as Ewing's sarcoma, 2 as retinoblastoma, 5 as non-Hodgkin's lymphoma (NHL), 5 as rhabdomyosarcoma, 2 as peripheral neuroectodermal tumors (PNETs), and 8 as Wilms' tumor. Eleven of 12 neuroblastomas were diploid by FCM, and 1 was aneuploid, with an S-phase fraction (SPF) of 8.3%. Neuron-specific enolase (NSE) was negative in 3 and positive in 8 cases of neuroblastoma, whereas neuroblastoma marker was positive in 3/11. Sixteen of 17 Ewing's sarcomas were diploid, and 1 showed tetraploid aneuploidy, with an SPF of 10.06%. Eight of 13 Ewing's sarcomas were positive for Mic-2 gene product (Ewing's marker). All 5 NHL were positive for leukocyte-common antigen (LCA). Three of 5 rhabdomyosarcomas were diploid, and 2 cases showed aneuploidy. Rhabdomyosarcoma showed muscle-specific actin positivity in 4 and desmin positivity in 3 cases. All 3 cases of PNET were diploid and positive for the Mic-2 gene product, whereas NSE and vimentin were positive in 2 cases. Both cases of retinoblastoma were diploid. Immunostaining was noncontributory in 1 case, and the other showed positivity for the retinoblastoma gene product, NSE, and chromogranin. Seven of 8 Wilms' tumors were diploid, and 1 showed aneuploid, with an SPF of 11.13%. Seven of 8 Wilms' tumors were positive for cytokeratin (CK), 5 were positive for NSE, 6 were positive for epithelial membrane antigen (EMA), and 5 were positive for vimentin. FNAB diagnosis of malignant round-cell tumors is difficult only by light microscopy. Due to the availability of specific markers for subgrouping tumors, ICC has proved to be more useful these days, while DNA FCM has little diagnostic value, as most of them are diploid. Further ancillary studies, e.g., electron microscopy, image analysis, and other molecular investigations, are required to further categorize these tumors more precisely for better clinical management of these cases.
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MESH Headings
- Biopsy, Needle
- Carcinoma, Small Cell/diagnosis
- Carcinoma, Small Cell/genetics
- Carcinoma, Small Cell/pathology
- DNA, Neoplasm/analysis
- Flow Cytometry/methods
- Humans
- Immunohistochemistry/methods
- Lymphoma/diagnosis
- Lymphoma/genetics
- Lymphoma/pathology
- Neuroblastoma/diagnosis
- Neuroblastoma/genetics
- Neuroblastoma/pathology
- Neuroectodermal Tumors, Primitive/diagnosis
- Neuroectodermal Tumors, Primitive/genetics
- Neuroectodermal Tumors, Primitive/pathology
- Ploidies
- Prospective Studies
- Rhabdomyosarcoma/diagnosis
- Rhabdomyosarcoma/genetics
- Rhabdomyosarcoma/pathology
- Sarcoma, Ewing/diagnosis
- Sarcoma, Ewing/genetics
- Sarcoma, Ewing/pathology
- Wilms Tumor/diagnosis
- Wilms Tumor/genetics
- Wilms Tumor/pathology
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Affiliation(s)
- U Brahmi
- Department of Cytology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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21
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Folpe AL, Hill CE, Parham DM, O'Shea PA, Weiss SW. Immunohistochemical detection of FLI-1 protein expression: a study of 132 round cell tumors with emphasis on CD99-positive mimics of Ewing's sarcoma/primitive neuroectodermal tumor. Am J Surg Pathol 2000; 24:1657-62. [PMID: 11117787 DOI: 10.1097/00000478-200012000-00010] [Citation(s) in RCA: 199] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The histologic and immunohistochemical differentiation of Ewing' s sarcoma/primitive neuroectodermal tumor (ES/PNET) from other small, blue, round cell tumors may be difficult. Despite initial promise, CD99 (MIC2) has not proven to be a specific marker. Approximately 90% of ES/PNET have a specific t(11; 22)(q24;q12) that results in fusion of the EWS and FLI-1 genes, and overexpression of FLI-1 protein. A recent study has shown immunohistochemical FLI-1 expression in five of seven of the ES/PNET cases tested. We evaluated FLI-1 expression in 132 well-characterized small, blue, round cell tumors. All tumors were immunostained for FLI-1 (1:40, Sc 356 polyclonal, Santa Cruz Biotechnology) using steam heat for epitope retrieval. Only nuclear staining was accepted as positive. Endothelial cells were strongly positive in all cases and served as an internal control. In many cases, a subset of lymphocytes also stained positive. No staining was seen in any other normal tissue. FLI-1 expression was seen in 29 of 41 (71%) ES/PNET, 7 of 8 (88%) lymphoblastic lymphomas, 0 of 8 poorly differentiated synovial sarcomas (PDSS), 0 of 32 rhabdomyosarcoma (RMS), 0 of 30 neuroblastomas, 0 of 8 esthesioneuroblastomas, 0 of 3 Wilms' tumors, 0 of 1 mesenchymal chondrosarcoma, and in 1 of 1 desmoplastic round cell tumor. This last case was known to have an EWS/WT-1 fusion. Although the EWS/FLI-1 fusion gene is specific for ES/PNET, FLI-1 protein expression is not. Significantly, the great majority of lymphoblastic lymphomas (also CD99-positive) are strongly FLI-1-positive. Immunohistochemical detection of FLI-1 may be valuable in confirming the diagnosis of ES/ PNET in cases in which molecular genetic evaluation is not feasible. FLI-1 protein expression is also helpful in distinguishing ES/PNET from other tumors that may be CD99-positive, such as PDSS and RMS. It is not surprising that some ES/ PNET are FLI-1-negative, because not all ES/PNET have the classic EWS/FLI-1, and some cases of ES/PNET may produce either low levels of protein or idiotypically different protein.
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MESH Headings
- 12E7 Antigen
- Adult
- Antigens, CD/biosynthesis
- Biomarkers, Tumor/biosynthesis
- Bone Neoplasms/diagnosis
- Bone Neoplasms/immunology
- Bone Neoplasms/metabolism
- Brain Neoplasms/diagnosis
- Brain Neoplasms/immunology
- Brain Neoplasms/metabolism
- Carcinoma, Small Cell/diagnosis
- Carcinoma, Small Cell/immunology
- Carcinoma, Small Cell/metabolism
- Cell Adhesion Molecules/biosynthesis
- Child
- DNA-Binding Proteins/biosynthesis
- Diagnosis, Differential
- Humans
- Immunohistochemistry
- Neuroectodermal Tumors, Primitive/diagnosis
- Neuroectodermal Tumors, Primitive/immunology
- Neuroectodermal Tumors, Primitive/metabolism
- Proto-Oncogene Protein c-fli-1
- Proto-Oncogene Proteins
- Sarcoma, Ewing/diagnosis
- Sarcoma, Ewing/immunology
- Sarcoma, Ewing/metabolism
- Trans-Activators/biosynthesis
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Affiliation(s)
- A L Folpe
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia, USA.
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22
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Faulkner LB, Garaventa A, Paoli A, Tintori V, Tamburini A, Lacitignola L, Veltroni M, Lo Piccolo MS, Viscardi E, Milanaccio C, Tondo A, Spinelli S, Bernini G, De Bernardi B. In vivo cytoreduction studies and cell sorting--enhanced tumor-cell detection in high-risk neuroblastoma patients: implications for leukapheresis strategies. J Clin Oncol 2000; 18:3829-36. [PMID: 11078496 DOI: 10.1200/jco.2000.18.22.3829] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE To improve autologous leukapheresis strategies in high-risk neuroblastoma (NB) patients with extensive bone marrow involvement at diagnosis. PATIENTS AND METHODS Anti-G(D2) immunocytochemistry (sensitivity, 1 in 10(5) to 10(6) leukocytes) was used to evaluate blood and bone marrow disease at diagnosis and during the recovery phase of the first six chemotherapy cycles in 57 patients with stage 4 NB and bone marrow disease at diagnosis. A total of 42 leukapheresis samples from the same patients were evaluated with immunocytology, and in 24 of these patients, an anti-G(D2) immunomagnetic enrichment step was used to enhance tumor-cell detection. RESULTS Tumor cytoreduction was much faster in blood compared with bone marrow (3.2 logs after the first cycle and 2.1 logs after the first two cycles, respectively). Bone marrow disease was often detectable throughout induction, with a trend to plateau after the fourth cycle. By direct anti-G(D2) immunocytology, a positive leukapheresis sample was obtained in 7% of patients after either the fifth or sixth cycle; when NB cell immunomagnetic enrichment was applied, 25% of patients had a positive leukapheresis sample (sensitivity, 1 in 10(7) to 10(8) leukocytes). CONCLUSION Standard chemotherapy seems to deliver most of its in vivo purging effect within the first four cycles. In patients with overt marrow disease at diagnosis, postponing hematopoietic stem-cell collection beyond this point may not be justified. Tumor-cell clearance in blood seems to be quite rapid, and earlier collections via peripheral-blood leukapheresis might be feasible. Immunomagnetically enhanced NB cell detection can be highly sensitive and can indicate whether ex vivo purging should be considered.
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Affiliation(s)
- L B Faulkner
- Hematology-Oncology Service, Department of Pediatrics, University of Florence, Ospedale Pediatrico A. Meyer, Italy.
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23
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De Moerloose B, Dhooge C, Laureys G, Benoit Y, Demarche M, Devalck C, Plantaz D, Leroy J, Philipp� J. Discrepant flow cytometric expression and function of P-glycoprotein in neuroblastic tumors. ACTA ACUST UNITED AC 1999. [DOI: 10.1002/(sici)1097-0320(19991001)37:2<125::aid-cyto5>3.0.co;2-e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Ordóñez NG. Desmoplastic small round cell tumor: II: an ultrastructural and immunohistochemical study with emphasis on new immunohistochemical markers. Am J Surg Pathol 1998; 22:1314-27. [PMID: 9808124 DOI: 10.1097/00000478-199811000-00002] [Citation(s) in RCA: 203] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In order to investigate the histogenesis and facilitate the diagnosis of desmoplastic small round cell tumor (DSRCT), 39 cases were studied by immunohistochemical methods using a large battery of antibodies directed against a wide variety of epithelial, mesenchymal, and neural-associated proteins. Sixteen of these tumors were also studied by electron microscopy. Thirty-seven of 39 cases reacted for cytokeratin using a "cocktail" of 3 monoclonal antibodies (CAM 5.2/AE1/AE3), 39/39 for desmin, 24/25 for epithelial membrane antigen, 22/27 for vimentin, 18/25 for neuron-specific enolase, 10/15 for CD57 (Leu-7), 3/19 for synaptophysin, 1/22 for chromogranin, 3/19 for muscle-specific actin, 3/16 for alpha-smooth-muscle actin, 11/16 for CD15 (Leu-M1), 5/12 for CA-125, 6/17 for CD99, 9/10 for MOC-31, 2/6 for NB84, 5/7 for Ber-EP4, and 8/9 for the Wilms tumor (WT1) protein. No staining was obtained in any of the cases tested for cytokeratin 5/6 or 20, neurofilament proteins, glial fibrillary acidic protein, peripherin, CA19-9, thrombomodulin, alphafetoprotein, carcinoembryonic antigen, TAG-72 (B72.3), placental alkaline phosphatase, S-100 protein, HMB-45, myoglobin, or for the two myogenic regulatory proteins myogenin and MyoD1. A frequent ultrastructural finding was the presence of juxtanuclear aggregates of intermediate filaments, but microfilaments with densities or Z-band-like material suggestive of either smooth or skeletal muscle differentiation were not seen in any case. Dendritic-like processes containing microtubules and dense core granules were seen in four tumors and all of these tumors reacted for at least one of the neural markers investigated. Although ultrastructural and immunohistochemical studies confirmed previous observations that DSRCTs present epithelial, mesenchymal, and neural phenotypes, a great variation was found in the frequency of expression of the different markers used to demonstrate each line of cell differentiation. The absence of expression of cytokeratin 5/6 and thrombomodulin together with positive staining for CD15, MOC-31, and Ber-EP4 argues against the possible mesothelial origin that has been suggested for this tumor. Additionally since none of the tumors reacted for myogenin or MyoD1, desmin expression in DSRCT cannot be regarded as evidence of skeletal muscle differentiation. Although the histogenesis of DSRCT remains unknown, it is believed that this tumor originates from a progenitor cell with potential for multiphenotypic differentiation.
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Affiliation(s)
- N G Ordóñez
- The University of Texas M.D. Anderson Cancer Center, Houston 77056, USA
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25
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Miettinen M, Chatten J, Paetau A, Stevenson A. Monoclonal antibody NB84 in the differential diagnosis of neuroblastoma and other small round cell tumors. Am J Surg Pathol 1998; 22:327-32. [PMID: 9500774 DOI: 10.1097/00000478-199803000-00007] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Two hundred fifty-five well-characterized formaldehyde-fixed and paraffin-embedded small round cell tumors mainly from children and young adults including 105 neuroblastomas were immunohistochemically analyzed with the NB84 monoclonal antibody raised to neuroblastoma cells. Most of the undifferentiated neuroblastomas (21 of 22) and all 83 differentiated neuroblastomas reacted with NB84, but none of these tumors were CD99 positive. Compared with synaptophysin, NB84 was more sensitive, although less specific, in the identification of neuroblastoma in formaldehyde-fixed tissue. In addition to neuroblastoma, skeletal and extraskeletal Ewing's sarcoma and medulloblastoma showed NB84 reactivity in approximately 20% of cases, and 50% of desmoplastic small round cell tumors showed positive cells, usually in smaller numbers than the neuroblastomas. The NB84 reactivity was seen slightly more commonly in morphologically defined (rosette-positive) cases of peripheral primitive neuroectodermal tumors than in Ewing's sarcoma. However, the NB84 positivity did not correlate with the expression of other neural markers (neurofilament proteins, CD57, and synaptophysin) in these tumors. All other small round cell tumors including rhabdomyosarcomas, Wilms' tumors, and lymphomas were NB84 negative. In the case of NB84-positive tumors other than neuroblastoma, their specific reactivity for other markers was useful (Ewing's sarcoma CD99 positive, desmoplastic small round cell tumor desmin and keratin positive). The NB84 monoclonal antibody is a useful reagent to separate neuroblastoma from other small round cell tumors. In problem cases it is best used in a panel together with other markers that address the significant differential diagnostic alternatives.
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Affiliation(s)
- M Miettinen
- Armed Forces Institute of Pathology, Department of Soft Tissue Pathology, Washington, DC 20306, USA
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26
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Kuchelmeister K, Demirel T, Schlörer E, Bergmann M, Gullotta F. Dysembryoplastic neuroepithelial tumour of the cerebellum. Acta Neuropathol 1995; 89:385-90. [PMID: 7610772 DOI: 10.1007/bf00309634] [Citation(s) in RCA: 114] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A case of dysembryoplastic neuroepithelial tumour of the cerebellum occurring in a 28-year-old woman is presented. The lesion extended from the cortex of the inferior vermis upwards into the white matter. Histologically, it exhibited areas of microcystic cerebellar astrocytoma and glial regions with hamartomatous blood vessels as well as areas with oligodendrocyte-like cells (OLC) with a delicate, fibrillary stroma lying in a mucinous, often microcystic matrix. The OLC showed prominent rosette formation and immunohistochemical features suggesting neuronal, i.e. granule cell, differentiation.
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Affiliation(s)
- K Kuchelmeister
- Institut für Neuropathologie der Universität, Münster, Germany
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