1
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Wang CJ, Zhu T, Zhao CZ, Cui H, Wang D, Zhao ZJ, Huang XT, Li HL, Liu FF, Zhang R, Li ZG, Cui L. BRAF-V600E mutations in plasma and peripheral blood mononuclear cells correlate with prognosis of pediatric Langerhans cell histiocytosis treated with first-line therapy. Pediatr Blood Cancer 2024; 71:e31099. [PMID: 38845144 DOI: 10.1002/pbc.31099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 05/10/2024] [Accepted: 05/12/2024] [Indexed: 07/26/2024]
Abstract
BACKGROUND The clinical relevance of BRAF-V600E alleles in peripheral blood mononuclear cells (PBMCs) and the prognostic impact of the mutants in cell-free (cf) and PBMC DNAs of Langerhans cell histiocytosis (LCH) have not been fully clarified in pediatric LCH. METHODS We retrospectively determined the levels of BRAF-V600E mutation in paired plasma and PBMC samples at the time of diagnosis of LCH. Subsequently, we performed a separate or combined analysis of the clinical and prognostic impact of the mutants. RESULTS We assessed BRAF-V600E mutation in peripheral blood from 94 patients of childhood LCH. Our data showed that cfBRAF-V600E was related to young age, multiple-system (MS) disease, involvements of organs with high risk, increased risk of relapse, and worse progression-free survival (PFS) of patients. We also observed that the presence of BRAF-V600E in PBMCs at baseline was significantly associated with MS LCH with risk organ involvement, younger age, and disease progression or relapse. The coexisting of plasma(+)/PBMC(+) identified 36.2% of the patients with the worst outcome, and the hazard ratio was more significant than either of the two alone or neither, indicating that combined analysis of the mutation in plasma and PBMCs was more accurate to predict relapse than evaluation of either one. CONCLUSIONS Concurrent assessment of BRAF-V600E mutation in plasma and PBMCs significantly impacted the prognosis of children with LCH. Further prospective studies with larger cohorts need to validate the results of this study.
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Affiliation(s)
- Chan-Juan Wang
- Hematologic Diseases Laboratory, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Ting Zhu
- Hematologic Diseases Laboratory, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Chen-Zi Zhao
- Hematologic Diseases Laboratory, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Hua Cui
- Hematologic Diseases Laboratory, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Dong Wang
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Zi-Jing Zhao
- Hematologic Diseases Laboratory, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Xiao-Tong Huang
- Hematologic Diseases Laboratory, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Hua-Lin Li
- Hematologic Diseases Laboratory, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Fei-Fei Liu
- Hematologic Diseases Laboratory, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Rui Zhang
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Zhi-Gang Li
- Hematologic Diseases Laboratory, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Lei Cui
- Hematologic Diseases Laboratory, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
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Santana P, Arias-Intriago M, Izquierdo-Condoy JS. Langerhans cell histiocytosis: unusual bone marrow infiltration-report of 2 cases in Ecuador. Front Med (Lausanne) 2024; 11:1433463. [PMID: 39081692 PMCID: PMC11286394 DOI: 10.3389/fmed.2024.1433463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Accepted: 07/04/2024] [Indexed: 08/02/2024] Open
Abstract
Langerhans cell histiocytosis (LCH) is a histiocytic neoplasm characterized by the abnormal proliferation of Langerhans cells. Bone marrow (BM) involvement is associated with high-risk disease and poor survival. Although BM involvement is particularly uncommon, no reported cases of LCH with BM infiltration have been documented in Latin America until now. The aim of this report is to highlight the clinical, hematological, and BM findings of two cases of LCH with BM infiltration, providing insights that may aid in detecting suspected patients. We present two cases of LCH with BM infiltration. One case involved a 23-month-old male patient, and the other a 16-month-old female patient. Common clinical findings in both cases included hepatosplenomegaly and fever. Hematological findings revealed anemia in both cases. The key diagnostic tool was the BM biopsy, which revealed histiocyte nests with characteristic morphology, CD1a-positive cells, increased eosinophils, and reactive paratrabecular lymphocytes. This report underscores the significance of clinical profiles in predicting BM infiltration in LCH. The presence of histiocyte nests displaying the characteristic morphology of Langerhans cells, accompanied by an elevation in eosinophils, indicates bone marrow involvement. Furthermore, the demonstration of CD1a-positive cells through immunohistochemistry serves as a crucial diagnostic tool.
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Affiliation(s)
- Paulina Santana
- Department of Pathology, Medical Science Faculty, Universidad Central del Ecuador, Quito, Ecuador
- Department of Anatomic Pathology, Hospital de Especialidades Carlos Andrade Marín, Quito, Ecuador
| | - Marlon Arias-Intriago
- One Health Research Group, Faculty of Medicine, Universidad de las Américas, Quito, Ecuador
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3
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Beneforti L, Chinnici A, Coniglio ML, Papa MR, Punzi L, Sieni E, De Fusco C. Vemurafenib combined with cytarabine and cladribine results in clinical efficacy but persistent BRAF V600E clone in a newborn affected by high-risk Langerhans cell histiocytosis. Br J Haematol 2024. [PMID: 38986479 DOI: 10.1111/bjh.19637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 06/28/2024] [Indexed: 07/12/2024]
Affiliation(s)
- Linda Beneforti
- Department of Neurosciences, Psychology, Drug Research and Child Health (NEUROFARBA), University of Florence, Florence, Italy
- Department of Pediatric Hematology Oncology, Meyer Children's Hospital IRCCS, Florence, Italy
| | - Aurora Chinnici
- Department of Neurosciences, Psychology, Drug Research and Child Health (NEUROFARBA), University of Florence, Florence, Italy
- Department of Pediatric Hematology Oncology, Meyer Children's Hospital IRCCS, Florence, Italy
| | - Maria Luisa Coniglio
- Department of Pediatric Hematology Oncology, Meyer Children's Hospital IRCCS, Florence, Italy
| | - Maria Rosaria Papa
- Department of Oncology, Hematology and Cell Therapy, AORN Santobono-Pausilipon, Naples, Italy
| | - Liana Punzi
- Department of Translational Medical Sciences, Section of Pediatrics, University Federico II, Naples, Italy
| | - Elena Sieni
- Department of Pediatric Hematology Oncology, Meyer Children's Hospital IRCCS, Florence, Italy
| | - Carmela De Fusco
- Department of Oncology, Hematology and Cell Therapy, AORN Santobono-Pausilipon, Naples, Italy
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4
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Zhu T, Wang CJ, Lian HY, Ma HH, Wang D, Wang TY, Zhang R, Cui L, Li ZG. The plasma-soluble CSF1R level is a promising prognostic indicator for pediatric Langerhans cell histiocytosis. Pediatr Blood Cancer 2024; 71:e30970. [PMID: 38556751 DOI: 10.1002/pbc.30970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/16/2024] [Accepted: 02/21/2024] [Indexed: 04/02/2024]
Abstract
Langerhans cell histiocytosis (LCH) is a rare hematologic neoplasm characterized by the clonal proliferation of Langerhans-like cells. Colony-stimulating factor 1 receptor (CSF1R) is a membrane-bound receptor that is highly expressed in LCH cells and tumor-associated macrophages. In this study, a soluble form of CSF1R protein (sCSF1R) was identified by plasma proteome profiling, and its role in evaluating LCH prognosis was explored. We prospectively measured plasma sCSF1R levels in 104 LCH patients and 10 healthy children using ELISA. Plasma sCSF1R levels were greater in LCH patients than in healthy controls (p < .001) and significantly differed among the three disease extents, with the highest level in MS RO+ LCH patients (p < .001). Accordingly, immunofluorescence showed the highest level of membrane-bound CSF1R in MS RO+ patients. Furthermore, the plasma sCSF1R concentration at diagnosis could efficiently predict the prognosis of LCH patients treated with standard first-line treatment (AUC = 0.782, p < .001). Notably, dynamic monitoring of sCSF1R levels could predict relapse early in patients receiving BRAF inhibitor treatment. In vitro drug sensitivity data showed that sCSF1R increased resistance to Ara-C in THP-1 cells expressing ectopic BRAF-V600E. Overall, the plasma sCSF1R level at diagnosis and during follow-up is of great clinical importance in pediatric LCH patients.
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Affiliation(s)
- Ting Zhu
- Hematologic Diseases Laboratory, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Chan-Juan Wang
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Hong-Yun Lian
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Hong-Hao Ma
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Dong Wang
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Tian-You Wang
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Rui Zhang
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Lei Cui
- Hematologic Diseases Laboratory, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
| | - Zhi-Gang Li
- Hematologic Diseases Laboratory, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Beijing Key Laboratory of Pediatric Hematology-Oncology, Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- National Key Discipline of Pediatrics, Capital Medical University, Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
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5
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Śmieszek A, Marcinkowska K, Małas Z, Sikora M, Kępska M, Nowakowska BA, Deperas M, Smyk M, Rodriguez-Galindo C, Raciborska A. Identification and characterization of stromal-like cells with CD207 +/low CD1a +/low phenotype derived from histiocytic lesions - a perspective in vitro model for drug testing. BMC Cancer 2024; 24:105. [PMID: 38342891 PMCID: PMC10860276 DOI: 10.1186/s12885-023-11807-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 12/28/2023] [Indexed: 02/13/2024] Open
Abstract
BACKGROUND Histiocytoses are rare disorders manifested by increased proliferation of pathogenic myeloid cells sharing histological features with macrophages or dendritic cells and accumulating in various organs, i.a., bone and skin. Pre-clinical in vitro models that could be used to determine molecular pathways of the disease are limited, hence research on histiocytoses is challenging. The current study compares cytophysiological features of progenitor, stromal-like cells derived from histiocytic lesions (sl-pHCs) of three pediatric patients with different histiocytoses types and outcomes. The characterized cells may find potential applications in drug testing. METHODS Molecular phenotype of the cells, i.e. expression of CD1a and CD207 (langerin), was determined using flow cytometry. Cytogenetic analysis included GTG-banded metaphases and microarray (aCGH) evaluation. Furthermore, the morphology and ultrastructure of cells were evaluated using a confocal and scanning electron microscope. The microphotographs from the confocal imaging were used to reconstruct the mitochondrial network and its morphology. Basic cytophysiological parameters, such as viability, mitochondrial activity, and proliferation, were analyzed using multiple cellular assays, including Annexin V/7-AAD staining, mitopotential analysis, BrdU test, clonogenicity analysis, and distribution of cells within the cell cycle. Biomarkers potentially associated with histiocytoses progression were determined using RT-qPCR at mRNA, miRNA and lncRNA levels. Intracellular accumulation of histiocytosis-specific proteins was detected with Western blot. Cytotoxicyty and IC50 of vemurafenib and trametinib were determined with MTS assay. RESULTS Obtained cellular models, i.e. RAB-1, HAN-1, and CHR-1, are heterogenic in terms of molecular phenotype and morphology. The cells express CD1a/CD207 markers characteristic for dendritic cells, but also show intracellular accumulation of markers characteristic for cells of mesenchymal origin, i.e. vimentin (VIM) and osteopontin (OPN). In subsequent cultures, cells remain viable and metabolically active, and the mitochondrial network is well developed, with some distinctive morphotypes noted in each cell line. Cell-specific transcriptome profile was noted, providing information on potential new biomarkers (non-coding RNAs) with diagnostic and prognostic features. The cells showed different sensitivity to vemurafenib and trametinib. CONCLUSION Obtained and characterized cellular models of stromal-like cells derived from histiocytic lesions can be used for studies on histiocytosis biology and drug testing.
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Affiliation(s)
- Agnieszka Śmieszek
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Norwida 31, 50-375, Wroclaw, Poland.
| | - Klaudia Marcinkowska
- Department of Experimental Biology, Faculty of Biology and Animal Science, Wroclaw University of Environmental and Life Sciences, Norwida 27B, 50-375, Wroclaw, Poland
| | - Zofia Małas
- Department of Oncology and Surgical Oncology for Children and Youth, Institute of Mother and Child, Kasprzaka 17a, 01-211, Warsaw, Poland
| | - Mateusz Sikora
- Department of Experimental Biology, Faculty of Biology and Animal Science, Wroclaw University of Environmental and Life Sciences, Norwida 27B, 50-375, Wroclaw, Poland
| | - Martyna Kępska
- Department of Experimental Biology, Faculty of Biology and Animal Science, Wroclaw University of Environmental and Life Sciences, Norwida 27B, 50-375, Wroclaw, Poland
| | - Beata A Nowakowska
- Medical Genetics Department, Cytogenetics Laboratory, Institute of Mother and Child, Kasprzaka 17a, 01-211, Warsaw, Poland
| | - Marta Deperas
- Medical Genetics Department, Cytogenetics Laboratory, Institute of Mother and Child, Kasprzaka 17a, 01-211, Warsaw, Poland
| | - Marta Smyk
- Medical Genetics Department, Cytogenetics Laboratory, Institute of Mother and Child, Kasprzaka 17a, 01-211, Warsaw, Poland
| | | | - Anna Raciborska
- Department of Oncology and Surgical Oncology for Children and Youth, Institute of Mother and Child, Kasprzaka 17a, 01-211, Warsaw, Poland.
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6
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Shiloh R, Lubin R, David O, Geron I, Okon E, Hazan I, Zaliova M, Amarilyo G, Birger Y, Borovitz Y, Brik D, Broides A, Cohen-Kedar S, Harel L, Kristal E, Kozlova D, Ling G, Shapira Rootman M, Shefer Averbuch N, Spielman S, Trka J, Izraeli S, Yona S, Elitzur S. Loss of function of ENT3 drives histiocytosis and inflammation through TLR-MAPK signaling. Blood 2023; 142:1740-1751. [PMID: 37738562 DOI: 10.1182/blood.2023020714] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 08/11/2023] [Accepted: 08/24/2023] [Indexed: 09/24/2023] Open
Abstract
Histiocytoses are inflammatory myeloid neoplasms often driven by somatic activating mutations in mitogen-activated protein kinase (MAPK) cascade genes. H syndrome is an inflammatory genetic disorder caused by germ line loss-of-function mutations in SLC29A3, encoding the lysosomal equilibrative nucleoside transporter 3 (ENT3). Patients with H syndrome are predisposed to develop histiocytosis, yet the mechanism is unclear. Here, through phenotypic, molecular, and functional analysis of primary cells from a cohort of patients with H syndrome, we reveal the molecular pathway leading to histiocytosis and inflammation in this genetic disorder. We show that loss of function of ENT3 activates nucleoside-sensing toll-like receptors (TLR) and downstream MAPK signaling, inducing cytokine secretion and inflammation. Importantly, MEK inhibitor therapy led to resolution of histiocytosis and inflammation in a patient with H syndrome. These results demonstrate a yet-unrecognized link between a defect in a lysosomal transporter and pathological activation of MAPK signaling, establishing a novel pathway leading to histiocytosis and inflammation.
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Affiliation(s)
- Ruth Shiloh
- The Rina Zaizov Division of Pediatric Hematology-Oncology, Schneider Children's Medical Center, Petach Tikva, Israel
- Felsenstein Medical Research Center, Faculty of Medicine, Tel Aviv University, Petach Tikva, Israel
| | - Ruth Lubin
- The Institute of Biomedical and Oral Research, Hebrew University, Jerusalem, Israel
| | - Odeya David
- Pediatric Endocrinology Unit, Soroka University Medical Center, Beer Sheva, Israel
- Pediatric Ambulatory Center, Soroka University Medical Center, Beer Sheva, Israel
- Joyce and Irving Goldman Medical School, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer Sheva, Israel
| | - Ifat Geron
- The Rina Zaizov Division of Pediatric Hematology-Oncology, Schneider Children's Medical Center, Petach Tikva, Israel
- Felsenstein Medical Research Center, Faculty of Medicine, Tel Aviv University, Petach Tikva, Israel
| | - Elimelech Okon
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Idit Hazan
- The Institute of Biomedical and Oral Research, Hebrew University, Jerusalem, Israel
| | - Marketa Zaliova
- Childhood Leukaemia Investigation Prague, Department of Paediatric Haematology and Oncology, Second Faculty of Medicine of Charles University Prague and University Hospital Motol, Prague, Czech Republic
| | - Gil Amarilyo
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pediatric Rheumatology Unit, Schneider Children's Medical Center, Petach Tikva, Israel
| | - Yehudit Birger
- The Rina Zaizov Division of Pediatric Hematology-Oncology, Schneider Children's Medical Center, Petach Tikva, Israel
- Felsenstein Medical Research Center, Faculty of Medicine, Tel Aviv University, Petach Tikva, Israel
| | - Yael Borovitz
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Institute of Nephrology, Schneider Children's Medical Center, Petach Tikva, Israel
| | - Dafna Brik
- The Rina Zaizov Division of Pediatric Hematology-Oncology, Schneider Children's Medical Center, Petach Tikva, Israel
| | - Arnon Broides
- Pediatric Ambulatory Center, Soroka University Medical Center, Beer Sheva, Israel
- Joyce and Irving Goldman Medical School, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer Sheva, Israel
- Pediatric Immunology Clinic, Soroka University Medical Center, Beer Sheva, Israel
| | - Sarit Cohen-Kedar
- Felsenstein Medical Research Center, Faculty of Medicine, Tel Aviv University, Petach Tikva, Israel
- Division of Gastroenterology, Rabin Medical Center, Petach Tikva, Israel
| | - Liora Harel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pediatric Rheumatology Unit, Schneider Children's Medical Center, Petach Tikva, Israel
| | - Eyal Kristal
- Pediatric Ambulatory Center, Soroka University Medical Center, Beer Sheva, Israel
- Joyce and Irving Goldman Medical School, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer Sheva, Israel
- Pediatric Immunology Clinic, Soroka University Medical Center, Beer Sheva, Israel
| | - Daria Kozlova
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Pathology, Rabin Medical Center, Beilinson Campus, Petach Tikva, Israel
| | - Galina Ling
- Pediatric Ambulatory Center, Soroka University Medical Center, Beer Sheva, Israel
- Joyce and Irving Goldman Medical School, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer Sheva, Israel
| | | | - Noa Shefer Averbuch
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pediatric Genetics Clinic, Schneider Children's Medical Center of Israel, Petach Tikva, Israel
- The Jesse and Sara Lea Shafer Institute for Endocrinology and Diabetes, National Center for Childhood Diabetes, Schneider Children's Medical Center of Israel, Petach Tikva, Israel
| | - Shiri Spielman
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Pediatrics A, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Israel
| | - Jan Trka
- Childhood Leukaemia Investigation Prague, Department of Paediatric Haematology and Oncology, Second Faculty of Medicine of Charles University Prague and University Hospital Motol, Prague, Czech Republic
| | - Shai Izraeli
- The Rina Zaizov Division of Pediatric Hematology-Oncology, Schneider Children's Medical Center, Petach Tikva, Israel
- Felsenstein Medical Research Center, Faculty of Medicine, Tel Aviv University, Petach Tikva, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Beckman Research Institute, City of Hope, Duarte, CA
| | - Simon Yona
- The Institute of Biomedical and Oral Research, Hebrew University, Jerusalem, Israel
| | - Sarah Elitzur
- The Rina Zaizov Division of Pediatric Hematology-Oncology, Schneider Children's Medical Center, Petach Tikva, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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7
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Acosta-Medina AA, Kemps PG, Zondag TCE, Abeykoon JP, Forma-Borst J, Steenwijk EC, Feijen EAM, Teepen JC, Bennani NN, Schram SM, Shah MV, Davidge-Pitts C, Koster MJ, Ryu JH, Vassallo R, Tobin WO, Young JR, Dasari S, Rech K, Ravindran A, Cleven AHG, Verdijk RM, van Noesel CJM, Balgobind BV, Bouma GJ, Saeed P, Bramer JAM, de Groen RAL, Vermaat JSP, van de Sande MAJ, Smit EF, Langerak AW, van Wezel T, Tonino SH, van den Bos C, van Laar JAM, Go RS, Goyal G, van Halteren AGS. BRAF V600E is associated with higher incidence of second cancers in adults with Langerhans cell histiocytosis. Blood 2023; 142:1570-1575. [PMID: 37595284 PMCID: PMC10797504 DOI: 10.1182/blood.2023021212] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/05/2023] [Accepted: 07/27/2023] [Indexed: 08/20/2023] Open
Abstract
In this retrospective study, BRAF mutation status did not correlate with disease extent or (event-free) survival in 156 adults with Langerhans cell histiocytosis. BRAFV600E was associated with an increased incidence of second malignancies, often comprising hematological cancers, which may be clonally related.
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Affiliation(s)
- Aldo A. Acosta-Medina
- Department of Internal Medicine, Mayo Clinic, Rochester, MN
- Division of Hematology, Mayo Clinic, Rochester, MN
| | - Paul G. Kemps
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Timo C. E. Zondag
- Section Clinical Immunology, Department of Internal Medicine, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | | | - Jelske Forma-Borst
- Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - Eline C. Steenwijk
- Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Jop C. Teepen
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | | | | | | | | | | | - Jay H. Ryu
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN
| | - Robert Vassallo
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN
| | | | | | - Surendra Dasari
- Division of Biomedical Statistics and Informatics, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | - Karen Rech
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Aishwarya Ravindran
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL
| | - Arjen H. G. Cleven
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
- Department of Pathology, University Medical Center Groningen, Groningen, The Netherlands
| | - Robert M. Verdijk
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
- Department of Pathology, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Carel J. M. van Noesel
- Department of Pathology, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Brian V. Balgobind
- Department of Radiation Oncology, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Gerrit Joan Bouma
- Department of Neurosurgery, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Peerooz Saeed
- Department of Ophthalmology, Orbital Center, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Jos A. M. Bramer
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Department of Orthopedic Surgery and Sports Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Ruben A. L. de Groen
- Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands
| | - Joost S. P. Vermaat
- Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands
| | - Michiel A. J. van de Sande
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Department of Orthopedic Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - Egbert F. Smit
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
| | - Anton W. Langerak
- Department of Immunology, Laboratory Medical Immunology, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Tom van Wezel
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Sanne H. Tonino
- Department of Hematology, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Cor van den Bos
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Department of Pediatric Oncology, Emma Children’s Hospital, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Jan A. M. van Laar
- Section Clinical Immunology, Department of Internal Medicine, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
- Section Clinical Immunology, Department of Immunology, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Ronald S. Go
- Division of Hematology, Mayo Clinic, Rochester, MN
| | - Gaurav Goyal
- Division of Hematology, Mayo Clinic, Rochester, MN
- Division of Hematology-Oncology, University of Alabama at Birmingham, Birmingham, AL
| | - Astrid G. S. van Halteren
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
- Section Clinical Immunology, Department of Internal Medicine, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
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8
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Auerbach A, Aguilera NS. The changing landscape of pediatric histiocytoses: Birth, life, and transdifferentiation of pediatric histiocytes. Semin Diagn Pathol 2023; 40:420-428. [PMID: 37258365 DOI: 10.1053/j.semdp.2023.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 05/19/2023] [Indexed: 06/02/2023]
Abstract
Histiocytic neoplasms in the children are very rare, and histiocytoses can occur in the perinatal period. The presumed origins and presentation of specific histiocytoses in the pediatric age group are described. Common and newly described histiocytoses are presented including Langerhans cell histiocytosis, Rosai-Dorfman disease, histiocytic sarcoma, ALK positive histiocytosis, and hemophagocytic lymphohistiocytosis. Molecular findings common to pediatric histiocytoses are also discussed.
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Affiliation(s)
- Aaron Auerbach
- Joint Pathology Center, Silver Spring, MD, United States of America
| | - Nadine S Aguilera
- University of Virginia Health System, Charlottesville, VA, United States of America.
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9
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Evseev D, Osipova D, Kalinina I, Raykina E, Ignatova A, Lyudovskikh E, Baidildina D, Popov A, Zhogov V, Semchenkova A, Litvin E, Kotskaya N, Cherniak E, Voronin K, Burtsev E, Bronin G, Vlasova I, Purbueva B, Fink O, Pristanskova E, Dzhukaeva I, Erega E, Novichkova G, Maschan A, Maschan M. Vemurafenib combined with cladribine and cytarabine results in durable remission of pediatric BRAF V600E-positive LCH. Blood Adv 2023; 7:5246-5257. [PMID: 37216396 PMCID: PMC10500470 DOI: 10.1182/bloodadvances.2022009067] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 03/28/2023] [Accepted: 04/05/2023] [Indexed: 05/24/2023] Open
Abstract
Langerhans cell histiocytosis (LCH) is a disorder with a variety of clinical signs. The most severe forms affect risk organs (RO). The established role of the BRAF V600E mutation in LCH led to a targeted approach. However, targeted therapy cannot cure the disease, and cessation leads to quick relapses. Here, we combined cytosine-arabinoside (Ara-C) and 2'-chlorodeoxyadenosine (2-CdA) with targeted therapy to achieve stable remission. Nineteen children were enrolled in the study: 13 were RO-positive (RO+) and 6 RO-negative (RO-). Five patients received the therapy upfront, whereas the other 14 received it as a second or third line. The protocol starts with 28 days of vemurafenib (20 mg/kg), which is followed by 3 courses of Ara-C and 2-CdA (100 mg/m2 every 12 h, 6 mg/m2 per day, days 1-5) with concomitant vemurafenib therapy. After that, vemurafenib therapy was stopped, and 3 courses of mono 2-CdA followed. All patients rapidly responded to vemurafenib: the median disease activity score decreased from 13 to 2 points in the RO+ group and from 4.5 to 0 points in the RO- group on day 28. All patients except 1 received complete protocol treatment, and 15 of them did not have disease progression. The 2-year reactivation/progression-free survival (RFS) for RO+ was 76.9% with a median follow-up of 21 months and 83.3% with a median follow-up of 29 months for RO-. Overall survival is 100%. Importantly, 1 patient experienced secondary myelodysplastic syndrome after 14 months from vemurafenib cessation. Our study demonstrates that combined vemurafenib plus 2-CdA and Ara-C is effective in a cohort of children with LCH, and the toxicity is manageable. This trial is registered at www.clinicaltrials.gov as NCT03585686.
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Affiliation(s)
- Dmitry Evseev
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Daria Osipova
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Irina Kalinina
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Elena Raykina
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Anna Ignatova
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Evelina Lyudovskikh
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Dina Baidildina
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Alexander Popov
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Vladimir Zhogov
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Alexandra Semchenkova
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Eugeny Litvin
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Natalia Kotskaya
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Ekaterina Cherniak
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Kirill Voronin
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Eugeny Burtsev
- Hematopoietic Stem Cell Transplantation Department, Morozov Children Hospital, Moscow, Russia
| | - Gleb Bronin
- Hematopoietic Stem Cell Transplantation Department, Morozov Children Hospital, Moscow, Russia
| | - Irina Vlasova
- Hematopoietic Stem Cell Transplantation Department, Morozov Children Hospital, Moscow, Russia
| | - Bazarma Purbueva
- Hematology and Chemotherapy Department №1, Russian Children’s Clinical Hospital, Moscow, Russia
| | - Olesya Fink
- Hematology and Chemotherapy Department №1, Russian Children’s Clinical Hospital, Moscow, Russia
| | - Ekaterina Pristanskova
- Hematology and Chemotherapy Department №1, Russian Children’s Clinical Hospital, Moscow, Russia
| | - Irina Dzhukaeva
- Pediatric Hematology and Oncology Department, Piotrovich Regional Children Clinical Hospital, Khabarovsk, Russia
| | - Elena Erega
- Pediatric Hematology and Oncology Department, Piotrovich Regional Children Clinical Hospital, Khabarovsk, Russia
| | - Galina Novichkova
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Alexey Maschan
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Michael Maschan
- Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
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10
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Milne P, Bomken S, Slater O, Kumar A, Nelson A, Roy S, Velazquez J, Mankad K, Nicholson J, Yeomanson D, Grundy R, Kamal A, Penn A, Pears J, Millen G, Morland B, Hayden J, Lam J, Madkhali M, MacDonald J, Singh P, Pagan S, Rodriguez-Galindo C, Minkov M, Donadieu J, Picarsic J, Allen C, Bigley V, Collin M. Lineage switching of the cellular distribution of BRAFV600E in multisystem Langerhans cell histiocytosis. Blood Adv 2023; 7:2171-2176. [PMID: 36112425 PMCID: PMC10196915 DOI: 10.1182/bloodadvances.2021006732] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 07/29/2022] [Accepted: 08/13/2022] [Indexed: 11/20/2022] Open
Abstract
Most children with high-risk Langerhans cell histiocytosis (LCH) have BRAFV600E mutation. BRAFV600E alleles are detectable in myeloid mononuclear cells at diagnosis but it is not known if the cellular distribution of mutation evolves over time. Here, the profiles of 16 patients with high-risk disease were analyzed. Two received conventional salvage chemotherapy, 4 patients on inhibitors were tracked at intervals of 3 to 6 years, and 10 patients, also given inhibitors, were analyzed more than 2 years after diagnosis. In contrast to the patients responding to salvage chemotherapy who completely cleared BRAFV600E within 6 months, children who received inhibitors maintained high BRAFV600E alleles in their blood. At diagnosis, mutation was detected predominantly in monocytes and myeloid dendritic cells. With time, mutation switched to the T-cell compartment, which accounted for most of the mutational burden in peripheral blood mononuclear cells, more than 2 years from diagnosis (median, 85.4%; range, 44.5%-100%). The highest level of mutation occurred in naïve CD4+ T cells (median, 51.2%; range, 3.8%-93.5%). This study reveals an unexpected lineage switch of BRAFV600E mutation in high-risk LCH, which may influence monitoring strategies for the potential withdrawal of inhibitor treatment and has new implications for the pathogenesis of neurodegeneration, which occurred in 4 patients.
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Affiliation(s)
- Paul Milne
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
- National Institute for Health and Care Research, Newcastle Biomedical Research Centre, Newcastle upon Tyne, United Kingdom
| | - Simon Bomken
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
- Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Olga Slater
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom
| | - Ashish Kumar
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Adam Nelson
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Somak Roy
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
- Division of Pathology and Laboratory Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Jessica Velazquez
- Texas Children’s Cancer and Hematology Centers, Texas Children’s Hospital, Baylor College of Medicine, Houston, TX
| | - Kshitij Mankad
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom
| | - James Nicholson
- Addenbrooke’s Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom
| | - Dan Yeomanson
- Sheffield Children’s Hospital, Sheffield Children’s NHS Foundation Trust, Sheffield, United Kingdom
| | - Richard Grundy
- Children’s Brain Tumour Research Centre, University of Nottingham, Nottingham, United Kingdom
- Nottingham Children’s Hospital, Queen's Medical Centre, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
| | - Ahmed Kamal
- Nottingham Children’s Hospital, Queen's Medical Centre, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
| | - Anthony Penn
- Royal Manchester Children’s Hospital, Manchester University, NHS Foundation Trust, Manchester, United Kingdom
| | - Jane Pears
- Children’s Health Ireland, Dublin, Ireland
| | - Gerard Millen
- Haematology and Oncology, Birmingham Women’s and Children’s NHS Foundation Trust, Birmingham, United Kingdom
| | - Bruce Morland
- Haematology and Oncology, Birmingham Women’s and Children’s NHS Foundation Trust, Birmingham, United Kingdom
| | - James Hayden
- Paediatric Oncology, Alder Hey Children’s NHS Foundation Trust, Liverpool, United Kingdom
| | - Jason Lam
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
- National Institute for Health and Care Research, Newcastle Biomedical Research Centre, Newcastle upon Tyne, United Kingdom
| | - Maymoon Madkhali
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
- Department of Laboratory and Blood Bank, Samtah General Hospital, Jazan Health, Ministry of Health, Samtah, Kingdom of Saudi Arabia
| | - Jamie MacDonald
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
- National Institute for Health and Care Research, Newcastle Biomedical Research Centre, Newcastle upon Tyne, United Kingdom
| | - Preeti Singh
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
- National Institute for Health and Care Research, Newcastle Biomedical Research Centre, Newcastle upon Tyne, United Kingdom
| | - Sarah Pagan
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
- National Institute for Health and Care Research, Newcastle Biomedical Research Centre, Newcastle upon Tyne, United Kingdom
| | | | - Milen Minkov
- St. Anna Children’s Hospital, Children’s Cancer Research Institute, Vienna, Austria
| | - Jean Donadieu
- Department of Pediatric Haematology and Oncology, Hôpital Armand-Trousseau, Assistance Publique–Hôpitaux de Paris (AP-HP), Paris, France
| | - Jennifer Picarsic
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
- Division of Pathology and Laboratory Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Carl Allen
- Texas Children’s Cancer and Hematology Centers, Texas Children’s Hospital, Baylor College of Medicine, Houston, TX
| | - Venetia Bigley
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
- National Institute for Health and Care Research, Newcastle Biomedical Research Centre, Newcastle upon Tyne, United Kingdom
| | - Matthew Collin
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
- National Institute for Health and Care Research, Newcastle Biomedical Research Centre, Newcastle upon Tyne, United Kingdom
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11
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Milne P, Abhyankar H, Scull B, Singh P, Chakraborty R, Allen CE, Collin M. Cellular distribution of mutations and association with disease risk in Langerhans cell histiocytosis without BRAFV600E. Blood Adv 2022; 6:4901-4904. [PMID: 35816634 PMCID: PMC9631653 DOI: 10.1182/bloodadvances.2022007519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 07/01/2022] [Indexed: 11/26/2022] Open
Affiliation(s)
- Paul Milne
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom; and
| | - Harshal Abhyankar
- Texas Children’s Cancer and Hematology Center, Texas Children’s Hospital, Houston, TX; and
| | - Brooks Scull
- Texas Children’s Cancer and Hematology Center, Texas Children’s Hospital, Houston, TX; and
| | - Preeti Singh
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom; and
| | - Rikhia Chakraborty
- Texas Children’s Cancer and Hematology Center, Texas Children’s Hospital, Houston, TX; and
| | - Carl E. Allen
- Texas Children’s Cancer and Hematology Center, Texas Children’s Hospital, Houston, TX; and
- Baylor College of Medicine, Houston, TX
| | - Matthew Collin
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom; and
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12
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Ghuijs W, Kemps PG, Capala ME, Verdijk RM, van Halteren AGS, van der Wal RJP, van Laar JAM. Aggressive unifocal bone Langerhans cell histiocytosis with soft tissue extension both responsive to radiotherapy: a case report. Radiat Oncol 2022; 17:137. [PMID: 35915468 PMCID: PMC9344655 DOI: 10.1186/s13014-022-02108-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 07/21/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Langerhans cell histiocytosis (LCH) is a rare haematological neoplasm characterized by the accumulation of CD1a+, CD207/Langerin+ histiocytes within inflammatory lesions. LCH can involve any organ, but osteolytic bone lesions are most often encountered. Unifocal bone lesions may regress spontaneously after a thick needle biopsy has been taken. CASE PRESENTATION In this case report, we describe the initial presentation of a single BRAFV600E mutated osteolytic LCH lesion in the left proximal humerus of a 46-year-old previously healthy woman. Despite multiple surgical interventions, she unexpectedly experienced progressive disease manifestation with significant soft tissue extension to the surrounding musculature, subcutis and epidermis. Because the disease manifestation remained loco-regional, radiotherapy (RT) (total dose of 20 Gy in 10 fractions) was initiated. CONCLUSION The patient achieved a complete remission without any side effects. This case highlights that RT is a rational and relative mild local treatment option for patients with aggressive LCH affecting the bone and surrounding soft tissue.
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Affiliation(s)
- Wilmar Ghuijs
- Department of Internal Medicine and Immunology, Erasmus MC University Medical Center Rotterdam, PO Box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Paul G Kemps
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Marta E Capala
- Department of Radiotherapy, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Robert M Verdijk
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands.,Department of Pathology, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Astrid G S van Halteren
- Department of Internal Medicine and Immunology, Erasmus MC University Medical Center Rotterdam, PO Box 2040, 3000 CA, Rotterdam, The Netherlands.,Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands.,Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | | | - Jan A M van Laar
- Department of Internal Medicine and Immunology, Erasmus MC University Medical Center Rotterdam, PO Box 2040, 3000 CA, Rotterdam, The Netherlands.
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13
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Mitchell J, Kannourakis G. Does CD1a Expression Influence T Cell Function in Patients With Langerhans Cell Histiocytosis? Front Immunol 2021; 12:773598. [PMID: 34956202 PMCID: PMC8702800 DOI: 10.3389/fimmu.2021.773598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 11/25/2021] [Indexed: 11/13/2022] Open
Abstract
Langerhans cell histiocytosis lesions are characterized by CD1a+ myeloid lineage LCH cells and an inflammatory infiltrate of cytokines and immune cells, including T cells. T cells that recognize CD1a may be implicated in the pathology of many disease states including cancer and autoimmunity but have not been studied in the context of LCH despite the expression of CD1a by LCH cells. In this perspective article, we discuss the expression of CD1a by LCH cells, and we explore the potential for T cells that recognize CD1a to be involved in LCH pathogenesis.
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Affiliation(s)
- Jenée Mitchell
- Fiona Elsey Cancer Research Institute, Ballarat, VIC, Australia
| | - George Kannourakis
- Fiona Elsey Cancer Research Institute, Ballarat, VIC, Australia
- Federation University Australia, Ballarat, VIC, Australia
- *Correspondence: George Kannourakis,
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14
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Mitchell J, Kannourakis G. Langerhans cell histiocytosis: A malignant myeloid neoplasm or disorder of immune regulation? Acta Paediatr 2021; 110:2888-2891. [PMID: 34146441 PMCID: PMC8596980 DOI: 10.1111/apa.15995] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/05/2021] [Accepted: 06/18/2021] [Indexed: 12/16/2022]
Affiliation(s)
- Jenee Mitchell
- Fiona Elsey Cancer Research Institute Ballarat Vic. Australia
| | - George Kannourakis
- Fiona Elsey Cancer Research Institute Ballarat Vic. Australia
- Federation University Ballarat Vic. Australia
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15
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Mitogen-activating protein kinase pathway alterations in Langerhans cell histiocytosis. Curr Opin Oncol 2021; 33:101-109. [PMID: 33315630 DOI: 10.1097/cco.0000000000000707] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW Langerhans cell histiocytosis (LCH) is a rare disorder characterized by the infiltration of involved tissues by specialized dendritic cells. The demonstration of the constant activation of the mitogen-activated protein kinase (MAPK) pathway in LCH lesions has been a breakthrough in the understanding of the pathogenesis of this rare disease. We will summarize the current knowledge on MAPK alterations in LCH and the new therapeutic options indicated by these findings. RECENT FINDINGS Since the description of the B-Raf proto-oncogene, serine/threonine kinase (BRAF)V600E mutation in LCH lesions, several other molecular alterations affecting the MAPK pathway have been identified in most cases. Based on these driver alterations, LCH cells were shown to be derived from hematopoietic precursors, which yielded the current concept of LCH as a myeloid inflammatory neoplasia. MAPK pathway inhibitors have emerged as an innovative therapy in severe forms of LCH, resulting in virtually no acquired resistance. However, although they are highly effective, their effect is only temporary, as the disease relapses upon discontinuation of the treatment. SUMMARY LCH is an inflammatory myeloid neoplastic disorder, driven by mutations activating the MAPK pathway. MAPK-targeted treatments represent an important stepforward in the management of patients with severe progressive LCH.
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16
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Poch R, Le Louet S, Hélias-Rodzewicz Z, Hachem N, Plat G, Barkaoui MA, Lapillonne H, Delhommeau F, Emile JF, Donadieu J, Héritier S. A circulating subset of BRAF V600E -positive cells in infants with high-risk Langerhans cell histiocytosis treated with BRAF inhibitors. Br J Haematol 2021; 194:745-749. [PMID: 34312844 DOI: 10.1111/bjh.17721] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/02/2021] [Accepted: 07/08/2021] [Indexed: 12/20/2022]
Abstract
BRAF inhibitors are an effective treatment for BRAFV600E -mutated, risk-organ-positive Langerhans cell histiocytosis (RO+ LCH). However, cell-free BRAFV600E DNA often persists during therapy and recurrence frequently occurs after therapy discontinuation. To identify a pathological reservoir of BRAFV600E -mutated cells, we studied peripheral blood cells obtained from six infants with RO+ multisystem (MS) LCH that received targeted therapy. After cell sorting, the BRAFV600E mutation was detected in monocytes (n = 5), B lymphocytes (n = 3), T lymphocytes (n = 2), and myeloid and plasmacytoid dendritic cells (n = 2 each). This biomarker may offer an interesting tool for monitoring the effectiveness of new therapeutic approaches for weaning children with RO+ LCH from targeted therapy.
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Affiliation(s)
- Rita Poch
- INSERM, Centre de Recherche Saint-Antoine, CRSA, Sorbonne Université, Paris, France
| | - Solenne Le Louet
- INSERM, Centre de Recherche Saint-Antoine, CRSA, Sorbonne Université, Paris, France
| | - Zofia Hélias-Rodzewicz
- EA4340-BECCOH, Versailles SQY University, Boulogne, France.,Pathology Department, Ambroise Paré Hospital, AP-AP, Boulogne, France
| | - Nawa Hachem
- INSERM, Centre de Recherche Saint-Antoine, CRSA, Sorbonne Université, Paris, France
| | - Geneviève Plat
- Department of Pediatric Hematology and Oncology, Centre Hospitalo-Universitaire de Toulouse, Toulouse, France
| | - Mohamed-Aziz Barkaoui
- Department of Pediatric Hematology and Oncology Trousseau Hospital, French Reference Center for Langerhans Cell Histiocytosis, AP-AP, Paris, France
| | - Hélène Lapillonne
- INSERM, Centre de Recherche Saint-Antoine, CRSA, Sorbonne Université, Paris, France
| | - François Delhommeau
- INSERM, Centre de Recherche Saint-Antoine, CRSA, Sorbonne Université, Paris, France
| | - Jean-François Emile
- EA4340-BECCOH, Versailles SQY University, Boulogne, France.,Pathology Department, Ambroise Paré Hospital, AP-AP, Boulogne, France
| | - Jean Donadieu
- INSERM, Centre de Recherche Saint-Antoine, CRSA, Sorbonne Université, Paris, France.,EA4340-BECCOH, Versailles SQY University, Boulogne, France.,Department of Pediatric Hematology and Oncology Trousseau Hospital, French Reference Center for Langerhans Cell Histiocytosis, AP-AP, Paris, France
| | - Sébastien Héritier
- INSERM, Centre de Recherche Saint-Antoine, CRSA, Sorbonne Université, Paris, France.,Department of Pediatric Hematology and Oncology Trousseau Hospital, French Reference Center for Langerhans Cell Histiocytosis, AP-AP, Paris, France
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Kemps PG, Hebeda KM, Pals ST, Verdijk RM, Lam KH, Bruggink AH, de Lil HS, Ruiterkamp B, de Heer K, van Laar JAM, Valk PJM, Mutsaers P, Levin M, Hogendoorn PCW, van Halteren AGS. Spectrum of histiocytic neoplasms associated with diverse haematological malignancies bearing the same oncogenic mutation. J Pathol Clin Res 2021; 7:10-26. [PMID: 32852896 PMCID: PMC7737785 DOI: 10.1002/cjp2.177] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/18/2020] [Accepted: 06/25/2020] [Indexed: 12/14/2022]
Abstract
Histiocytic disorders are a spectrum of rare diseases characterised by the accumulation of macrophage-, dendritic cell-, or monocyte-differentiated cells in various tissues and organs. The discovery of recurrent genetic alterations in many of these histiocytoses has led to their recognition as clonal neoplastic diseases. Moreover, the identification of the same somatic mutation in histiocytic lesions and peripheral blood and/or bone marrow cells from histiocytosis patients has provided evidence for systemic histiocytic neoplasms to originate from haematopoietic stem/progenitor cells (HSPCs). Here, we investigated associations between histiocytic disorders and additional haematological malignancies bearing the same genetic alteration(s) using the nationwide Dutch Pathology Registry. By searching on pathologist-assigned diagnostic terms for the various histiocytic disorders, we identified 4602 patients with a putative histopathological diagnosis of a histiocytic disorder between 1971 and 2019. Histiocytosis-affected tissue samples of 187 patients had been analysed for genetic alterations as part of routine molecular diagnostics, including from nine patients with an additional haematological malignancy. Among these patients, we discovered three cases with different histiocytic neoplasms and additional haematological malignancies bearing identical oncogenic mutations, including one patient with concomitant KRAS p.A59E mutated histiocytic sarcoma and chronic myelomonocytic leukaemia (CMML), one patient with synchronous NRAS p.G12V mutated indeterminate cell histiocytosis and CMML, and one patient with subsequent NRAS p.Q61R mutated Erdheim-Chester disease and acute myeloid leukaemia. These cases support the existence of a common haematopoietic cell-of-origin in at least a proportion of patients with a histiocytic neoplasm and additional haematological malignancy. In addition, they suggest that driver mutations in particular genes (e.g. N/KRAS) may specifically predispose to the development of an additional clonally related haematological malignancy or secondary histiocytic neoplasm. Finally, the putative existence of derailed multipotent HSPCs in these patients emphasises the importance of adequate (bone marrow) staging, molecular analysis and long-term follow-up of all histiocytosis patients.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Biomarkers, Tumor/genetics
- Erdheim-Chester Disease/genetics
- Erdheim-Chester Disease/pathology
- Erdheim-Chester Disease/therapy
- Fatal Outcome
- GTP Phosphohydrolases/genetics
- Genetic Predisposition to Disease
- Histiocytic Sarcoma/genetics
- Histiocytic Sarcoma/pathology
- Histiocytic Sarcoma/therapy
- Humans
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/pathology
- Leukemia, Myeloid, Acute/therapy
- Leukemia, Myelomonocytic, Chronic/genetics
- Leukemia, Myelomonocytic, Chronic/pathology
- Leukemia, Myelomonocytic, Chronic/therapy
- Male
- Membrane Proteins/genetics
- Middle Aged
- Mutation
- Phenotype
- Proto-Oncogene Proteins p21(ras)/genetics
- Retrospective Studies
- Treatment Outcome
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Affiliation(s)
- Paul G Kemps
- Department of PaediatricsLeiden University Medical CenterLeidenThe Netherlands
| | - Konnie M Hebeda
- Department of PathologyRadboud University Medical CenterNijmegenThe Netherlands
| | - Steven T Pals
- Department of PathologyAmsterdam University Medical CentersAmsterdamThe Netherlands
| | - Robert M Verdijk
- Department of PathologyErasmus MC University Medical Center RotterdamRotterdamThe Netherlands
- Department of PathologyLeiden University Medical CenterLeidenThe Netherlands
| | - King H Lam
- Department of PathologyErasmus MC University Medical Center RotterdamRotterdamThe Netherlands
| | - Annette H Bruggink
- PALGA Foundation (Nationwide Network and Registry of Histopathology and Cytopathology)HoutenThe Netherlands
| | - Heleen S de Lil
- Department of HaematologyRadboud University Medical CenterNijmegenThe Netherlands
| | - Bart Ruiterkamp
- Department of HaematologyRadboud University Medical CenterNijmegenThe Netherlands
| | - Koen de Heer
- Department of HaematologyAmsterdam University Medical CentersAmsterdamThe Netherlands
- Department of HaematologyFlevoziekenhuisAlmereThe Netherlands
| | - Jan AM van Laar
- Department of Internal MedicineErasmus MC University Medical Center RotterdamRotterdamThe Netherlands
- Department of ImmunologyErasmus MC University Medical Center RotterdamRotterdamThe Netherlands
| | - Peter JM Valk
- Department of HaematologyErasmus MC University Medical Center RotterdamRotterdamThe Netherlands
| | - Pim Mutsaers
- Department of HaematologyErasmus MC University Medical Center RotterdamRotterdamThe Netherlands
| | - Mark‐David Levin
- Department of Internal MedicineAlbert Schweitzer ZiekenhuisDordrechtThe Netherlands
| | | | - Astrid GS van Halteren
- Department of PaediatricsLeiden University Medical CenterLeidenThe Netherlands
- Princess Máxima Center for Paediatric OncologyUtrechtThe Netherlands
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