1
|
Bielamowicz K, Dimitrion P, Abla O, Bomken S, Campbell P, Collin M, Degar B, Diamond E, Eckstein OS, El-Mallawany N, Fluchel M, Goyal G, Henry MM, Hermiston M, Hogarty M, Jeng M, Jubran R, Lubega J, Kumar A, Ladisch S, McClain KL, Merad M, Mi QS, Parsons DW, Peckham-Gregory E, Picarsic J, Prudowsky ZD, Rollins BJ, Shaw PH, Wistinghausen B, Rodriguez-Galindo C, Allen CE. Langerhans cell histiocytosis: NACHO update on progress, chaos, and opportunity on the path to rational cures. Cancer 2024; 130:2416-2439. [PMID: 38687639 PMCID: PMC11214602 DOI: 10.1002/cncr.35301] [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: 01/16/2024] [Revised: 02/14/2024] [Accepted: 02/27/2024] [Indexed: 05/02/2024]
Abstract
Langerhans cell histiocytosis (LCH) is a myeloid neoplastic disorder characterized by lesions with CD1a-positive/Langerin (CD207)-positive histiocytes and inflammatory infiltrate that can cause local tissue damage and systemic inflammation. Clinical presentations range from single lesions with minimal impact to life-threatening disseminated disease. Therapy for systemic LCH has been established through serial trials empirically testing different chemotherapy agents and durations of therapy. However, fewer than 50% of patients who have disseminated disease are cured with the current standard-of-care vinblastine/prednisone/(mercaptopurine), and treatment failure is associated with long-term morbidity, including the risk of LCH-associated neurodegeneration. Historically, the nature of LCH-whether a reactive condition versus a neoplastic/malignant condition-was uncertain. Over the past 15 years, seminal discoveries have broadly defined LCH pathogenesis; specifically, activating mitogen-activated protein kinase pathway mutations (most frequently, BRAFV600E) in myeloid precursors drive lesion formation. LCH therefore is a clonal neoplastic disorder, although secondary inflammatory features contribute to the disease. These paradigm-changing insights offer a promise of rational cures for patients based on individual mutations, clonal reservoirs, and extent of disease. However, the pace of clinical trial development behind lags the kinetics of translational discovery. In this review, the authors discuss the current understanding of LCH biology, clinical characteristics, therapeutic strategies, and opportunities to improve outcomes for every patient through coordinated agent prioritization and clinical trial efforts.
Collapse
Affiliation(s)
- Kevin Bielamowicz
- College of Medicine at the University of Arkansas for Medical Sciences, Department of Pediatrics; Arkansas Children’s Hospital, Pediatric Hematology and Oncology Little Rock, AR, USA
| | - Peter Dimitrion
- Center for Cutaneous Biology and Immunology, Henry Ford Health, Detroit, Michigan, USA
| | - Oussama Abla
- Division of Hematology/Oncology, Department of Pediatrics, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Simon Bomken
- Translational and Clinical Research Institute, Newcastle University; Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Patrick Campbell
- Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Matthew Collin
- Translational and Clinical Research Institute, Newcastle University; National Institute for Health and Care Research, Newcastle Biomedical Research Centre, Newcastle upon Tyne, United Kingdom
| | - Barbara Degar
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Eli Diamond
- Departments of Neurology and Medicine, Memorial Sloan Kettering Center, New York, NY, USA
| | - Olive S. Eckstein
- Department of Pediatrics, Baylor College of Medicine; Texas Children’s Cancer Center, Texas Children’s Hospital, Houston, TX, USA
| | - Nader El-Mallawany
- Department of Pediatrics, Baylor College of Medicine; Texas Children’s Cancer Center, Texas Children’s Hospital, Houston, TX, USA
| | - Mark Fluchel
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, Seattle Children’s Hospital and University of Washington School of Medicine, Seattle, Washington, USA
| | - Gaurav Goyal
- Division of Hematology-Oncology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Michael M. Henry
- Center for Cancer and Blood Disorders, Phoenix Children’s Hospital, Phoenix, AZ, USA
| | - Michelle Hermiston
- Department of Pediatrics, University of California, San Francisco, San Francisco, CA, USA
| | - Michael Hogarty
- Department of Pediatrics, Division of Hematology and Oncology, Children’s Hospital of Philadelphia (CHOP), Philadelphia, PA, USA
| | - Michael Jeng
- Department of Pediatrics, Pediatric Hematology/Oncology, Lucile Packard Children’s Hospital, Stanford University, Palo Alto, CA, USA
| | - Rima Jubran
- Division of Pediatric Hematology/Oncology, Children’s Hospital Los Angeles, Los Angeles, CA
| | - Joseph Lubega
- Department of Pediatrics, Baylor College of Medicine; Texas Children’s Cancer Center, Texas Children’s Hospital, Houston, TX, USA
| | - Ashish Kumar
- University of Cincinnati College of Medicine, Division of Bone Marrow Transplant and Immune Deficiency, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Stephan Ladisch
- Marc and Jennifer Lipschultz Precision Immunology Institute; The Tisch Cancer Institute; Department of Oncology Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Kenneth L. McClain
- Department of Pediatrics, Baylor College of Medicine; Texas Children’s Cancer Center, Texas Children’s Hospital, Houston, TX, USA
| | - Miriam Merad
- Center for Cancer and Immunology Research, Children’s National Medical Center and George Washington University School of Medicine, Washington, DC, USA
| | - Qing-Sheng Mi
- Center for Cutaneous Biology and Immunology, Henry Ford Health, Detroit, Michigan, USA
| | - D. Williams Parsons
- Department of Pediatrics, Baylor College of Medicine; Texas Children’s Cancer Center, Texas Children’s Hospital, Houston, TX, USA
| | - Erin Peckham-Gregory
- Department of Pediatrics, Baylor College of Medicine; Texas Children’s Cancer Center, Texas Children’s Hospital, Houston, TX, USA
| | - Jennifer Picarsic
- University of Cincinnati College of Medicine and Division of Pathology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Zachary D. Prudowsky
- Department of Pediatrics, Baylor College of Medicine; Texas Children’s Cancer Center, Texas Children’s Hospital, Houston, TX, USA
| | - Barrett J. Rollins
- Department of Medical Oncology, Dana-Farber Cancer Institute and Department of Medicine, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Peter H. Shaw
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Birte Wistinghausen
- Marc and Jennifer Lipschultz Precision Immunology Institute; The Tisch Cancer Institute; Department of Oncology Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Carlos Rodriguez-Galindo
- Department of Global Pediatric Medicine and Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Carl E. Allen
- Department of Pediatrics, Baylor College of Medicine; Texas Children’s Cancer Center, Texas Children’s Hospital, Houston, TX, USA
| |
Collapse
|
2
|
Rajabi MT, Abdol Homayuni MR, Samiee R, Mobader Sani S, Aghajani AH, Rafizadeh SM, Amanollahi M, Pezeshgi S, Hosseini SS, Rajabi MB, Sadeghi R. Orbital histiocytosis; From A to Z. Int Ophthalmol 2024; 44:236. [PMID: 38902584 DOI: 10.1007/s10792-024-03179-6] [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] [Received: 02/13/2024] [Accepted: 06/15/2024] [Indexed: 06/22/2024]
Abstract
PURPOSE Histiocytosis is one of the most challenging diseases in medical practice. Because of the broad spectrum of clinical manifestations, systemic involvements, unknown etiology, and complex management, different types of histiocytosis are still a big question mark for us. Orbital histiocytosis is characterized by the abnormal proliferation of histiocytes in orbital tissues. It could affect the orbit, eyelid, conjunctiva, and uveal tract. Orbital histiocytosis can cause limited eye movement, proptosis, decreased visual acuity, and epiphora. In this study, we review the novel findings regarding the pathophysiology, diagnosis, and treatment of different types of histiocytosis, focusing on their orbital manifestations. METHOD This review was performed based on a search of the PubMed, Scopus, and Embase databases or relevant published papers regarding orbital histiocytosis on October 9th, 2023. No time restriction was proposed, and articles were excluded if they were not referenced in English. RESULTS 391 articles were screened, most of them being case reports. The pathophysiology of histiocytosis is still unclear. However, different mutations are found to be prevalent in most of the patients. The diagnostic path can be different based on various factors such as age, lesion site, type of histiocytosis, and the stage of the disease. Some modalities, such as corticosteroids and surgery, are used widely for treatment. On the other hand, based on some specific etiological factors for each type, alternative treatments have been proposed. CONCLUSION Significant progress has been made in the detection of somatic molecular changes. Many case studies describe various disease patterns influencing the biological perspectives on different types of histiocytosis. It is necessary to continue investigating and clustering data from a broad range of patients with histiocytosis in children and adults to define the best ways to diagnose and treat these patients.
Collapse
Affiliation(s)
- Mohammad Taher Rajabi
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran
| | - Mohammad Reza Abdol Homayuni
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- NCweb Association, Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Samiee
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Sheida Mobader Sani
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- NCweb Association, Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Hossein Aghajani
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran
| | - Seyed Mohsen Rafizadeh
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran
| | - Mobina Amanollahi
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Saharnaz Pezeshgi
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyedeh Simindokht Hosseini
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran
| | - Mohammad Bagher Rajabi
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran
| | - Reza Sadeghi
- Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, 1336616351, Iran.
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
3
|
Parekh D, Lin H, Batajoo A, Peckham-Gregory E, Karri V, Stanton W, Scull B, Fleishmann R, El-Mallawany N, Eckstein OS, Prudowsky ZD, Gulati N, Agrusa JE, Ahmed AZ, Chu R, Dietz MS, Goldman SC, Hogarty MD, Imran H, Intzes S, Kim JM, Kopp LM, Levy CF, Neff P, Pillai PM, Sisk BA, Schiff DE, Trobaugh-Lotrario AD, Walkovich K, McClain KL, Allen CE. Clofarabine monotherapy in aggressive, relapsed and refractory Langerhans cell histiocytosis. Br J Haematol 2024; 204:1888-1893. [PMID: 38501389 DOI: 10.1111/bjh.19376] [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: 11/17/2023] [Revised: 02/14/2024] [Accepted: 02/20/2024] [Indexed: 03/20/2024]
Abstract
Over 50% of patients with systemic LCH are not cured with front-line therapies, and data to guide salvage options are limited. We describe 58 patients with LCH who were treated with clofarabine. Clofarabine monotherapy was active against LCH in this cohort, including heavily pretreated patients with a systemic objective response rate of 92.6%, higher in children (93.8%) than adults (83.3%). BRAFV600E+ variant allele frequency in peripheral blood is correlated with clinical responses. Prospective multicentre trials are warranted to determine optimal dosing, long-term efficacy, late toxicities, relative cost and patient-reported outcomes of clofarabine compared to alternative LCH salvage therapy strategies.
Collapse
Affiliation(s)
- Deevyashali Parekh
- Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas, USA
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Baylor College of Medicine, Houston, Texas, USA
| | - Howard Lin
- Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas, USA
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Baylor College of Medicine, Houston, Texas, USA
| | - Akanksha Batajoo
- Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas, USA
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Baylor College of Medicine, Houston, Texas, USA
| | - Erin Peckham-Gregory
- Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas, USA
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Baylor College of Medicine, Houston, Texas, USA
| | - Vivekanudeep Karri
- Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas, USA
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Baylor College of Medicine, Houston, Texas, USA
| | - Whitney Stanton
- Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas, USA
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Baylor College of Medicine, Houston, Texas, USA
| | - Brooks Scull
- Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas, USA
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Baylor College of Medicine, Houston, Texas, USA
| | - Ryan Fleishmann
- Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas, USA
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Baylor College of Medicine, Houston, Texas, USA
| | - Nader El-Mallawany
- Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas, USA
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Baylor College of Medicine, Houston, Texas, USA
| | - Olive S Eckstein
- Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas, USA
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Baylor College of Medicine, Houston, Texas, USA
| | - Zachary D Prudowsky
- Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas, USA
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Baylor College of Medicine, Houston, Texas, USA
| | - Nitya Gulati
- Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas, USA
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Baylor College of Medicine, Houston, Texas, USA
- Department of Pediatrics, Weill Cornell Medical College, New York, New York, USA
| | - Jennifer E Agrusa
- Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas, USA
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Baylor College of Medicine, Houston, Texas, USA
- Division of Pediatric Hematology/Oncology, C.S. Mott Children's Hospital, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Asra Z Ahmed
- Division of Hematology/Oncology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Roland Chu
- Division of Hematology/Oncology/BMT, Central Michigan University College of Medicine, Children's Hospital of Michigan, Detroit, Michigan, USA
| | - Matthew S Dietz
- Division of Pediatric Hematology and Oncology, University of Utah, Primary Children's Hospital, Salt Lake City, Utah, USA
| | - Stanton C Goldman
- Pediatric Hematology/Oncology, Medical City Children's Hospital, Dallas, Texas, USA
| | - Michael D Hogarty
- Division of Oncology, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Hamayun Imran
- Department of Pediatrics, University of South Alabama, Mobile, Alberta, USA
| | - Stefanos Intzes
- Department of Pediatric Hematology/Oncology, Sacred Heart Children's Hospital, Spokane, Washington, USA
| | - Jenny M Kim
- Department of Pediatrics, Division of Hematology/Oncology, University of California San Diego School of Medicine, Rady Children's Hospital, San Diego, California, USA
| | - Lisa M Kopp
- Department of Pediatrics, University of Arizona, Mel and Enid Zuckerman College of Public Health, Tucson, Arizona, USA
| | - Carolyn Fein Levy
- Division of Pediatric Hematology/Oncology, Department of Pediatrics, Cohen Children's Medical Center, Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA
| | - Philip Neff
- Children's Blood and Cancer Center, The University of Texas at Austin, Dell Children's Medical Center of Central Texas, Austin, Texas, USA
| | - Pallavi M Pillai
- Jack Martin Division of Pediatric Hematology-Oncology, Jack and Lucy Clark Department of Pediatrics, Mount Sinai Kravis Children's Hospital, New York, New York, USA
| | - Bryan A Sisk
- Division of Pediatric Hematology and Oncology, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA
| | - Deborah E Schiff
- Department of Pediatrics, Division of Hematology/Oncology, University of California San Diego School of Medicine, Rady Children's Hospital, San Diego, California, USA
| | | | - Kelly Walkovich
- Division of Pediatric Hematology/Oncology, C.S. Mott Children's Hospital, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Kenneth L McClain
- Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas, USA
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Baylor College of Medicine, Houston, Texas, USA
| | - Carl E Allen
- Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas, USA
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Baylor College of Medicine, Houston, Texas, USA
| |
Collapse
|
4
|
Papadakis V, Astigarraga I, van den Bos C, Donadieu J, Henter JI, Jacobs S, Lehrnbecher T, Munthe-Kaas MC, Naeije L, Nanduri V, Nguyen T, Nysom K, Pears J, Raciborska A, Sieni E, Svojgr K, Tzotzola V, Minkov M. The ECHO recommendations for dealing with vinblastine shortage affecting standard treatment of systemic Langerhans cell histiocytosis. Pediatr Blood Cancer 2024; 71:e30850. [PMID: 38185727 DOI: 10.1002/pbc.30850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 01/09/2024]
Affiliation(s)
- Vassilios Papadakis
- Department of Pediatric Hematology-Oncology (TAO), Marianna V Vardinoyannis-ELPIDA Oncology Unit, Agia Sofia Children's Hospital, Athens, Greece
| | - Itziar Astigarraga
- Pediatric Oncology Group, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
- Pediatric Department, Hospital Universitario Cruces, Osakidetza, Barakaldo, Biscay, Spain
- Pediatric Department, Faculty of Medicine and Nursing, University of the Basque Country, UPV/EHU, Leioa, Spain
| | - Cor van den Bos
- Department of Hemato-oncology, Princess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Jean Donadieu
- Centre de Référence des Histiocytoses Registre des histiocytoses, Service d'Hémato-Oncologie Pédiatrique Hopital Trousseau APHP Paris Sorbonne, Paris, France
| | - Jan-Inge Henter
- Childhood Cancer Research Unit, Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden
- Department of Pediatrics, Astrid Lindgrens Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Sandra Jacobs
- Pediatric Hematology Oncology, University Hospital Leuven, Leuven, Belgium
| | - Thomas Lehrnbecher
- Department of Pediatrics, Division of Hematology, Oncology and Hemostaseology, Goethe University Frankfurt, Frankfurt/Main, Germany
| | | | - Leonie Naeije
- Department of Hemato-oncology, Princess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Vasanta Nanduri
- Department of Paediatrics, Watford General Hospital, Watford, UK
| | - Trung Nguyen
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Karsten Nysom
- Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Jane Pears
- Children's Health Ireland at Crumlin, Dublin, Ireland
| | - Anna Raciborska
- Department of Oncology and Surgical Oncology for Children and Youth, Institute of Mother and Child, Warsaw, Poland
| | - Elena Sieni
- Pediatric Hematology/Oncology Department, Meyer Children's University Hospital, Florence, Italy
| | - Karel Svojgr
- Department of Pediatric Hematology and Oncology, Charles University in Prague, 2nd Faculty of Medicine and Motol University Hospital, Prague, Czech Republic
| | - Vasiliki Tzotzola
- Department of Pediatric Hematology-Oncology (TAO), Marianna V Vardinoyannis-ELPIDA Oncology Unit, Agia Sofia Children's Hospital, Athens, Greece
| | - Milen Minkov
- CCRI, St. Anna Kinderkrebsforschung, Vienna, Austria
- Faculty of Medicine, Sigmund Freud Private University, Vienna, Austria
| |
Collapse
|
5
|
Sconocchia T, Foßelteder J, Sconocchia G, Reinisch A. Langerhans cell histiocytosis: current advances in molecular pathogenesis. Front Immunol 2023; 14:1275085. [PMID: 37965340 PMCID: PMC10642229 DOI: 10.3389/fimmu.2023.1275085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/16/2023] [Indexed: 11/16/2023] Open
Abstract
Langerhans cell histiocytosis (LCH) is a rare and clinically heterogeneous hematological disease characterized by the accumulation of mononuclear phagocytes in various tissues and organs. LCH is often characterized by activating mutations of the mitogen-activated protein kinase (MAPK) pathway with BRAFV600E being the most recurrent mutation. Although this discovery has greatly helped in understanding the disease and in developing better investigational tools, the process of malignant transformation and the cell of origin are still not fully understood. In this review, we focus on the newest updates regarding the molecular pathogenesis of LCH and novel suggested pathways with treatment potential.
Collapse
Affiliation(s)
- Tommaso Sconocchia
- Division of Hematology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Johannes Foßelteder
- Division of Hematology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Giuseppe Sconocchia
- Institute of Translational Pharmacology, National Research Council (CNR), Rome, Italy
| | - Andreas Reinisch
- Division of Hematology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Graz, Graz, Austria
| |
Collapse
|
6
|
El-Mallawany NK, Alexander S, Fluchel M, Hayashi RJ, Lowe EJ, Giulino-Roth L, Wistinghausen B, Hermiston M, Allen CE. Children's Oncology Group's 2023 blueprint for research: Non-Hodgkin lymphoma. Pediatr Blood Cancer 2023; 70 Suppl 6:e30565. [PMID: 37449925 PMCID: PMC10577684 DOI: 10.1002/pbc.30565] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 07/03/2023] [Indexed: 07/18/2023]
Abstract
Pediatric non-Hodgkin lymphoma (NHL) includes over 30 histologies (many with subtypes), with approximately 800 cases per year in the United States. Improvements in survival in NHL over the past 5 decades align with the overall success of the cooperative trial model with dramatic improvements in outcomes. As an example, survival for advanced Burkitt lymphoma is now >95%. Major remaining challenges include survival for relapsed and refractory disease and long-term morbidity in NHL survivors. Langerhans cell histiocytosis (LCH) was added to the NHL Committee portfolio in recognition of LCH as a neoplastic disorder and the tremendous unmet need for improved outcomes. The goal of the Children' Oncology Group NHL Committee is to identify optimal cures for every child and young adult with NHL (and LCH). Further advances will require creative solutions, including engineering study groups to combine rare populations, biology-based eligibility, alternative endpoints, facilitating international collaborations, and coordinated correlative biology.
Collapse
Affiliation(s)
- Nader Kim El-Mallawany
- Baylor College of Medicine, Texas Children’s Hospital, Texas Children’s Cancer Center, Houston, TX
| | - Sarah Alexander
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Canada
| | - Mark Fluchel
- Division of Pediatric Hematology/Oncology, Seattle Children’s, Hospital, and University of Washington School of Medicine, Seattle, WA
| | - Robert J. Hayashi
- Division of Pediatric Hematology/Oncology, Department of Pediatrics, Washington University School of Medicine, St. Louis Children’s Hospital, Siteman Cancer Center, St. Louis, MO
| | - Eric J. Lowe
- Children’s Hospital of The Kings Daughters, Division of Pediatric Hematology-Oncology, Norfolk, VA
| | | | - Birte Wistinghausen
- Center for Cancer and Blood Disorders and Center for Cancer and Immunology Research, Children’s National Research Institute, Children’s National Hospital; The George Washington University School of Medicine and Health Sciences, Washington, DC
| | | | - Carl E. Allen
- Baylor College of Medicine, Texas Children’s Hospital, Texas Children’s Cancer Center, Houston, TX
| |
Collapse
|
7
|
Eckstein OS, Bernhardt MB, Hood CG, Karri V, Kralik SF, McClain KL. Treatment of Langerhans cell histiocytosis with subcutaneous cytarabine. Pediatr Hematol Oncol 2023:1-9. [PMID: 36625721 DOI: 10.1080/08880018.2022.2137609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Patients with Langerhans cell histiocytosis (LCH) have been effectively treated with intravenous cytarabine. Intravenous or subcutaneous cytarabine infusions have been effective for leukemia patients, and pharmacokinetic studies have shown very similar blood levels of the drug with either route. We present three LCH patients treated with subcutaneous cytarabine either because intravenous access could not be maintained or due to patient refusal. One patient with pulmonary and skin LCH had a complete response. Another patient had a partial response of pulmonary and cutaneous lesions, but progressive bone disease. The third patient was treated for LCH-related cerebellar changes eight years after the diagnosis of isolated diabetes insipidus, with stable brain MRI for 5 years post-treatment. Subcutaneous cytarabine administration provides an alternative for patients with LCH in whom vascular access is not possible or practical, such as in some resource-limited circumstances.
Collapse
Affiliation(s)
- Olive S Eckstein
- Texas Children's Cancer and Hematology Centers, Baylor College of Medicine, Houston, Texas, USA
| | - M Brooke Bernhardt
- Texas Children's Cancer and Hematology Centers, Baylor College of Medicine, Houston, Texas, USA
| | - Chelsey G Hood
- Texas Children's Cancer and Hematology Centers, Baylor College of Medicine, Houston, Texas, USA
| | - Vivekanudeep Karri
- Texas Children's Cancer and Hematology Centers, Baylor College of Medicine, Houston, Texas, USA
| | - Stephen F Kralik
- Texas Children's Department of Radiology, Baylor College of Medicine, Houston, Texas, USA
| | - Kenneth L McClain
- Texas Children's Cancer and Hematology Centers, Baylor College of Medicine, Houston, Texas, USA
| |
Collapse
|
8
|
Rodriguez‐Galindo C. Clinical features and treatment of Langerhans cell histiocytosis. Acta Paediatr 2021; 110:2892-2902. [PMID: 34192374 DOI: 10.1111/apa.16014] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/23/2021] [Accepted: 06/29/2021] [Indexed: 12/11/2022]
Abstract
Langerhans cell histiocytosis (LCH) is caused by the expansion of CD1a+/CD207+ cells and is characterised by a wide spectrum of organ involvement and dysfunction, affecting all ages. While almost all organs and systems can be affected, only the involvement and dysfunction of liver, spleen, and haematopoietic system influence survival. The LCH pathogenic cells are defined by universal activation of the mitogen-activated protein kinase (MAPK) signalling pathway. The most common alteration is a somatic BRAFV600E mutation, which is present in approximately two-thirds of the cases, followed by MAP2K1 mutations. Treatment of LCH is risk-adapted; patients with single lesions may respond well to local treatment, whereas patients with multi-system disease require systemic chemotherapy. While survival for patients without organ dysfunction is excellent, mortality rates for patients with organ dysfunction may reach 20%. Despite progress made in the treatment of LCH, disease reactivation rates remain above 30%, and standard second-line treatment has yet to be established. Long-term effects, including neuroendocrine dysfunction and neurodegeneration, represent a major challenge for survivors. Treatment with BRAF or MEK inhibitors results in immediate responses, but reactivations are very common after discontinuation. Their role as single agents and in combination with chemotherapy is being explored.
Collapse
Affiliation(s)
- Carlos Rodriguez‐Galindo
- Departments of Global Pediatric Medicine and Oncology St. Jude Children’s Research Hospital Memphis TN USA
| |
Collapse
|
9
|
Irie M, Nakano T, Katayama S, Suzuki T, Moriya K, Watanabe Y, Suzuki N, Saitoh-Nanjyo Y, Onuma M, Rikiishi T, Niizuma H, Sasahara Y, Kure S. Clofarabine monotherapy in two patients with refractory Langerhans cell histiocytosis. Cancer Rep (Hoboken) 2021; 5:e1579. [PMID: 34725963 PMCID: PMC9351665 DOI: 10.1002/cnr2.1579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 09/10/2021] [Accepted: 10/12/2021] [Indexed: 11/29/2022] Open
Abstract
Background Better therapeutic options other than conventional chemotherapy for pediatric patients with refractory Langerhans cell histiocytosis (LCH) remain undetermined. Case We successfully treated two patients with refractory and risk organ negative LCH with clofarabine (CLO) monotherapy after recurrence. We administered total 23 courses of CLO monotherapy in patient 1 and 4 courses in patient 2. Both patients had distinct clinical manifestations but achieved a durable complete response with acceptable adverse effects of transient myelosuppression. CLO monotherapy was still effective when he had the second recurrent lesion after first completion of CLO in patient 1. We could discontinue prednisolone to control his refractory inflammation of LCH after completing CLO chemotherapy in patient 2. Conclusion Although large‐scale studies are warranted, CLO monotherapy could be a therapeutic option for high efficacy and feasibility besides other intensive combination chemotherapies or allogeneic hematopoietic stem cell transplantation for refractory LCH without risk organ involvement in children.
Collapse
Affiliation(s)
- Masahiro Irie
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tomohiro Nakano
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Saori Katayama
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tasuku Suzuki
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kunihiko Moriya
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yuko Watanabe
- Department of Pediatric Oncology, National Cancer Center Hospital, Chuo-ku, Japan
| | - Nobu Suzuki
- Department of Hematology and Oncology, Miyagi Children's Hospital, Sendai, Japan
| | - Yuka Saitoh-Nanjyo
- Department of Hematology and Oncology, Miyagi Children's Hospital, Sendai, Japan
| | - Masaei Onuma
- Department of Hematology and Oncology, Miyagi Children's Hospital, Sendai, Japan
| | - Takeshi Rikiishi
- Department of Hematology and Oncology, Miyagi Children's Hospital, Sendai, Japan
| | - Hidetaka Niizuma
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoji Sasahara
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shigeo Kure
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan
| |
Collapse
|
10
|
Histiocytic Diseases of Neonates: Langerhans Cell Histiocytosis, Rosai-Dorfman Disease, and Juvenile Xanthogranuloma. Clin Perinatol 2021; 48:167-179. [PMID: 33583503 DOI: 10.1016/j.clp.2020.11.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Langerhans cell histiocytosis, Rosai-Dorfman disease, and juvenile xanthogranuloma may present at birth or any time afterward. Some patients have minimal skin or lymph node involvement, but others present with life-threatening pulmonary, hepatic, bone marrow, or central nervous system lesions. There is often a delay in diagnosis because of confusing overlap with more common neonatal diseases. Many treatment regimens have been applied to these diseases, but those directed at myeloid cells, such as cytarabine and clofarabine or mutation-targeting inhibitors, are gaining favor. This article provides information on the pathophysiology, clinical presentation, evaluation guidelines, and treatment of these uncommon tumors of neonates.
Collapse
|
11
|
Abstract
Langerhans cell histiocytosis (LCH) is caused by clonal expansion of myeloid precursors that differentiate into CD1a+/CD207+ cells in lesions that leads to a spectrum of organ involvement and dysfunction. The pathogenic cells are defined by constitutive activation of the MAPK signaling pathway. Treatment of LCH is risk-adapted: patients with single lesions may respond well to local treatment, whereas patients with multisystem disease require systemic therapy. Although survival rates for patients without organ dysfunction is excellent, mortality rates for patients with organ dysfunction may reach 20%. Despite progress made in the treatment of LCH, disease reactivation rates remain above 30%, and standard second-line treatment is yet to be established. Treatment failure is associated with increased risks for death and long-term morbidity, including LCH-associated neurodegeneration. Early case series report promising clinical responses in patients with relapsed and refractory LCH treated with BRAF or MEK inhibitors, although potential for this strategy to achieve cure remains uncertain.
Collapse
|
12
|
Wang DS, Lu MY, Yang YL, Lin DT, Lin KH, Chang HH, Jou ST. Clinical outcomes of childhood Langerhans cell histiocytosis in Taiwan: A single-center, 20-year experience. J Formos Med Assoc 2020; 120:594-601. [PMID: 32741735 DOI: 10.1016/j.jfma.2019.12.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 11/08/2019] [Accepted: 12/10/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND/PURPOSE The Taiwan Pediatric Oncology Group (TPOG) initiated two consecutive protocols for treating pediatric patients with Langerhans cell histiocytosis (LCH) since 1994. However, the results have not been analyzed and reported. This study aimed to investigate the survival outcomes of childhood LCH at the National Taiwan University Hospital over the past 20 years. METHODS Treatment of pediatric patients with LCH according to TPOG protocols at the National Taiwan University Hospital began in 1994. During 1994-2003, patients were treated using the TPOG LCH-94 protocol. After 2003, patients were treated using the TPOG LCH-2003 protocol. Clinical data of these patients were obtained retrospectively by reviewing electronic medical records. Patients were followed up until July 31, 2018. RESULTS Fifty-three newly diagnosed pediatric patients with LCH were treated at National Taiwan University Hospital during 1994-2015. Twenty-nine (54.7%) were treated with the TPOG LCH-94 protocol, and 24 (45.3%) were treated with the TPOG LCH-2003 protocol. The 5-year event-free survival and overall survival rates were 96.2 ± 2.6% standard error (SE) and 98.1 ± 1.9% (SE), respectively. Overall survival and 5-year event-free survival between patients treated with the TPOG LCH-94 and TPOG LCH-2003 protocols showed no significant difference. Multisystem, liver, or spleen diseases were associated with significantly bad survival outcomes. Among at-risk-organ involvement in LCH, liver involvement was an independent factor for poor prognosis. CONCLUSION Clinical outcomes of children with LCH in Taiwan was good. The results of this study may help in the better classification of risk grouping for protocol designs in the future.
Collapse
Affiliation(s)
- Der-Shiun Wang
- Department of Pediatrics, Tri-service General Hospital, National Defense Medical Center, Taipei, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Meng-Yao Lu
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan; Department of Pediatrics, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yung-Li Yang
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan; Department of Pediatrics, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Dong-Tsamn Lin
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan; Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Kai-Hsin Lin
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Hsiu-Hao Chang
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan; Department of Pediatrics, College of Medicine, National Taiwan University, Taipei, Taiwan.
| | - Shiann-Tarng Jou
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan; Department of Pediatrics, College of Medicine, National Taiwan University, Taipei, Taiwan.
| |
Collapse
|
13
|
Othman J, Bonar F, Brown W, Boyle R, Khoo TL. Multiply relapsed mixed histiocytosis in an adult responding to clofarabine after failure of cladribine. Leuk Lymphoma 2019; 61:477-480. [PMID: 31483174 DOI: 10.1080/10428194.2019.1660976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Jad Othman
- Institute of Haematology, Royal Prince Alfred Hospital, Camperdown, Australia
| | - Fiona Bonar
- Department of Histopathology, Douglass Hanly Moir Pathology, Sydney, Australia
| | - Wendy Brown
- Department of Radiology, Royal Prince Alfred Hospital, Camperdown, Australia
| | - Richard Boyle
- Department of Orthopaedics, Royal Prince Alfred Hospital, Camperdown, Australia
| | - Teh-Liane Khoo
- Institute of Haematology, Royal Prince Alfred Hospital, Camperdown, Australia
| |
Collapse
|
14
|
Langerhans cell histiocytosis in children. J Am Acad Dermatol 2018; 78:1047-1056. [DOI: 10.1016/j.jaad.2017.05.060] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 05/15/2017] [Accepted: 05/31/2017] [Indexed: 12/23/2022]
|
15
|
Zhang X, Zhou J, Chai X, Chen G, Guo B, Ni L, Wu P. The application of x-ray, computed tomography, and magnetic resonance imaging on 22 pediatric Langerhans cell histiocytosis patients with long bone involvement: A retrospective analysis. Medicine (Baltimore) 2018; 97:e0411. [PMID: 29702989 PMCID: PMC5944563 DOI: 10.1097/md.0000000000010411] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The studies focusing on x-ray, computed tomography (CT), and magnetic resonance imaging (MRI) in pediatric Langerhans cell histiocytosis (LCH) patients were still rare. Therefore, we aimed to evaluate the application of x-ray, CT, and MRI in pediatric LCH patients with long bone involvement.Total 22 pediatric LCH patients were included in this study. The diagnosis of LCH was confirmed by pathological examination. All patients were followed up for 3 years. X-ray, CT, or MRI was performed and the results were recorded for further analyses.Among 22 pediatric patients, x-ray (n = 20), CT (n = 18), or MRI (n = 12) were used to scan the lesion on long bones affected by LCH. Femurs (n = 13, 38.24%), tibia (n = 11, 32.35%), humerus (n = 5, 14.71%), and radius (n = 4, 11.76%) were the most frequently affected anatomic sites. Ovoid or round radiolucent lesions, aggressive periosteal reaction, and swelling of surrounding soft tissues were characteristic image of long bones on x-ray, CT, and MRI in pediatric LCH.Femurs, tibia, humerus, and radius were the most commonly affected long bones of pediatric LCH. The application of x-ray, CT, and MRI on long bones could help with the diagnosis of pediatric LCH.
Collapse
Affiliation(s)
| | - Jing Zhou
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine
| | | | | | | | | | - Peng Wu
- Department of Hematology, Children's Hospital of Nanjing Medical University, Nanjing, China
| |
Collapse
|
16
|
Abstract
Langerhans cell histiocytosis (LCH) is a rare disease affecting both genders and can occur at any age. It often evolves through successive flares, and its severity varies from benign forms that don't require treatment to life threatening disease. Some patients have important functional impairment with psychological and social consequences and prolonged disability. LCH may affect only one organ, with uni- or multifocal involvement or be multisystem disease involving multiple organs. The organs most frequently involved are bones, lung, skin and the endocrinal system. Pulmonary LCH is strongly related to smoking. Some patients have mixed histocytosis combining LCH and other histiocytic disorders. The diagnosis relies on the histological study of tissues samples, and shows tissue infiltration with large cell with pale cytoplasm and reniform nucleus, staining for CD1a and Langerin (CD207) on immunohistochemistry. The BRAFV600E mutation is observed in tissue samples in approximately half of patients and the activation of the RAS-RAF-MEK-ERK pathway has been shown to be constantly activated in LCH lesions, regardless the BRAF status. These findings represent an important forward step in the understanding of the physiopathology of the disease. Treatment must be adapted to the severity of the disease and goes from conservative observation to systemic chemotherapy. Therapies targeting the RAS-RAF-MEK-ERK pathway are promising treatments for progressive disease.
Collapse
Affiliation(s)
- Mathilde de Menthon
- Assistance publique-Hôpitaux de Paris, hôpital Saint-Louis, département de médecine interne, 75010 Paris, France.
| | - Véronique Meignin
- Assistance publique-Hôpitaux de Paris, hôpital Saint-Louis, Inserm UMR_S1165, service de pathologie, 75010 Paris, France
| | - Alfred Mahr
- Assistance publique-Hôpitaux de Paris, hôpital Saint-Louis, département de médecine interne, 75010 Paris, France; Université Paris-Diderot, Sorbonne Paris Cité, Inserm UMR 1153 CRESS, équipe de recherche en biostatistiques et épidémiologie clinique, 75010 Paris, France
| | - Abdellatif Tazi
- Université Paris-Diderot, Sorbonne Paris Cité, Inserm UMR 1153 CRESS, équipe de recherche en biostatistiques et épidémiologie clinique, 75010 Paris, France; Assistance publique-Hôpitaux de Paris, hôpital Saint-Louis, centre national de référence de l'histiocytose langerhansienne, service de pneumologie, 75010 Paris, France
| |
Collapse
|
17
|
Monsereenusorn C, Minkov M, Rodriguez-Galindo C. Current treatment of Langerhans cell histiocytosis. Expert Opin Orphan Drugs 2016. [DOI: 10.1080/21678707.2016.1230058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
18
|
Aricò M. Langerhans cell histiocytosis in children: from the bench to bedside for an updated therapy. Br J Haematol 2016; 173:663-70. [DOI: 10.1111/bjh.13955] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
19
|
Pierro J, Vaiselbuh SR. Adult Langerhans Cell Histiocytosis As a Diagnostic Pitfall. J Clin Oncol 2016; 34:e41-5. [DOI: 10.1200/jco.2013.50.3045] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Joanna Pierro
- Staten Island University Hospital, Staten Island, New York
| | | |
Collapse
|
20
|
Abstract
Langerhans cell histiocytosis (LCH) is a clonally derived neoplasm with a highly variable clinical course. Although LCH was once considered a disorder of immune regulation, the identification of activating mutations in the proto-oncogene BRAF-V600E in ∼50%-60% of cases and MEK and ERK phosphorylation in 100% of examined cases, has changed the definition of LCH to a dendritic cell neoplasm with a strong inflammatory component. Current international LCH trials are focused on further improving the outcome of high-risk multisystem LCH patients, by decreasing the reactivation rate, optimizing early salvage regimens, and preventing late sequelae. Anecdotal responses to vemurafenib, a BRAF-V600E inhibitor, have been reported in a few cases of LCH and Erdheim–Chester disease. However, the development of resistance, as well as the potential risks of cutaneous and pancreatic cancers in patients with BRAF-V600E-mutated melanoma treated with single inhibitors, suggest the need for prospective trials with BRAF inhibitors, alone or in combination with other inhibitors of this pathway, for patients with refractory or multiply-relapsed LCH. The recent discovery of somatic mutations in ARAF and in MAP2K1, which lead to activation of the RAS-RAF-MEK –ERK pathway in the setting of wild-type BRAF, as well as the finding that activating mutation in MAP2K1 are relatively insensitive to MEK inhibitors, suggest that a more detailed understanding of this pathway in LCH may be necessary for the development of more effective targeted therapies.
Collapse
|
21
|
Abstract
AbstractLangerhans cell histiocytosis (LCH) is a clonally derived neoplasm with a highly variable clinical course. Although LCH was once considered a disorder of immune regulation, the identification of activating mutations in the proto-oncogene BRAF-V600E in ∼50%-60% of cases and MEK and ERK phosphorylation in 100% of examined cases, has changed the definition of LCH to a dendritic cell neoplasm with a strong inflammatory component. Current international LCH trials are focused on further improving the outcome of high-risk multisystem LCH patients, by decreasing the reactivation rate, optimizing early salvage regimens, and preventing late sequelae. Anecdotal responses to vemurafenib, a BRAF-V600E inhibitor, have been reported in a few cases of LCH and Erdheim–Chester disease. However, the development of resistance, as well as the potential risks of cutaneous and pancreatic cancers in patients with BRAF-V600E-mutated melanoma treated with single inhibitors, suggest the need for prospective trials with BRAF inhibitors, alone or in combination with other inhibitors of this pathway, for patients with refractory or multiply-relapsed LCH. The recent discovery of somatic mutations in ARAF and in MAP2K1, which lead to activation of the RAS-RAF-MEK –ERK pathway in the setting of wild-type BRAF, as well as the finding that activating mutation in MAP2K1 are relatively insensitive to MEK inhibitors, suggest that a more detailed understanding of this pathway in LCH may be necessary for the development of more effective targeted therapies.
Collapse
|
22
|
Abstract
Langerhans cell histiocytosis (LCH) is heterogeneous disease characterized by common histology of inflammatory lesions containing Langerin(+) (CD207) histiocytes. Emerging data support a model in which MAPK activation in self-renewing hematopoietic progenitors may drive disseminated high-risk disease, whereas MAPK activation in more differentiated committed myeloid populations may induce low-risk LCH. The heterogeneous clinical manifestations with shared histology may represent the final common pathway of an acquired defect of differentiation, initiated at more than one point. Implications of this model include re-definition of LCH as a myeloid neoplasia and re-focusing therapeutic strategies on the cells and lineages of origin.
Collapse
Affiliation(s)
- Matthew Collin
- Human Dendritic Cell Laboratory, Institute of Cellular Medicine, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK
| | - Venetia Bigley
- Human Dendritic Cell Laboratory, Institute of Cellular Medicine, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK
| | - Kenneth L McClain
- Texas Children's Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Carl E Allen
- Texas Children's Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA.
| |
Collapse
|
23
|
Monsereenusorn C, Rodriguez-Galindo C. Clinical Characteristics and Treatment of Langerhans Cell Histiocytosis. Hematol Oncol Clin North Am 2015; 29:853-73. [PMID: 26461147 DOI: 10.1016/j.hoc.2015.06.005] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Langerhans cell histiocytosis (LCH) is a disease caused by clonal proliferation of CD1a+/CD207+ cells that is characterized by a spectrum of varying degrees of organ involvement and dysfunction. Treatment of LCH is risk adapted; patients with single lesions may respond well to local treatment, whereas patients with multi-system disease and risk-organ involvement require more intensive therapy. Although survival for patients without organ dysfunction is excellent, mortality rates for patients with organ dysfunction may reach 30% to 40%. For patients with low-risk disease, although cure is almost universal, disease reactivation rates are in excess of 30%.
Collapse
Affiliation(s)
- Chalinee Monsereenusorn
- Department of Pediatric Oncology, Dana-Farber/Boston Children's Cancer and Blood Disorders Center, 450 Brookline Avenue D3-133, Boston, MA 02215, USA
| | - Carlos Rodriguez-Galindo
- Department of Pediatric Oncology, Dana-Farber/Boston Children's Cancer and Blood Disorders Center, 450 Brookline Avenue D3-133, Boston, MA 02215, USA; Department of Pediatrics, Harvard Medical School, Boston, MA, USA.
| |
Collapse
|
24
|
Cladribine and cytarabine in refractory multisystem Langerhans cell histiocytosis: results of an international phase 2 study. Blood 2015; 126:1415-23. [PMID: 26194764 DOI: 10.1182/blood-2015-03-635151] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Accepted: 07/06/2015] [Indexed: 12/16/2022] Open
Abstract
An international phase 2 study combining cladribine and cytarabine (Ara-C) was initiated for patients with refractory, risk-organ-positive Langerhans cell histiocytosis (LCH) in 2005. The protocol, comprising at least two 5-day courses of Ara-C (1 g/m(2) per day) plus cladribine (9 mg/m(2) per day) followed by maintenance therapy, was administered to 27 patients (median age at diagnosis, 0.7 years; median follow-up, 5.3 years). At inclusion, all patients were refractory after at least 1 course of vinblastine (VBL) plus corticosteroid, all had liver and spleen involvement, and 25 patients had hematologic cytopenia. After 2 courses, disease status was nonactive (n = 2), better (n = 23), or stable (n = 2), with an overall response rate of 92%. Median disease activity scores decreased from 12 at the start of therapy to 3 after 2 courses (P < .0001). During maintenance therapy, 4 patients experienced reactivation in risk organs. There were 4 deaths; 2 were related to therapy toxicity and 2 were related to reactivation. All patients experienced severe toxicity, with World Health Organization grade 4 hematologic toxicity and 6 documented severe infections. The overall 5-year survival rate was 85% (95% confidence interval, 65.2%-94.2%). Thus, the combination of cladribine/Ara-C is effective therapy for refractory multisystem LCH but is associated with high toxicity.
Collapse
|
25
|
Abstract
"Langerhans cell histiocytosis" (LCH) describes a spectrum of clinical presentations ranging from a single bone lesion or trivial skin rash to an explosive disseminated disease. Regardless of clinical severity, LCH lesions share the common histology of CD1a(+)/CD207(+) dendritic cells with characteristic morphology among an inflammatory infiltrate. Despite historical uncertainty defining LCH as inflammatory vs neoplastic and incomplete understanding of mechanisms of pathogenesis, clinical outcomes have improved markedly over the past decades through cooperative randomized clinical trials based on empiric therapeutic strategies. Significant advances include recognition of high- and low-risk clinical groups defined by hematopoietic and/or hepatic involvement, and of the importance of optimal intensity and of duration of chemotherapy. Nevertheless, mortality of high-risk patients, disease recurrence, lack of robustly tested salvage strategies, and significant disease morbidity of both high- and low-risk patients remain challenges. Recent discovery of recurrent somatic mutations in mitogen-activated protein kinase pathway genes at critical stages of myeloid hematopoietic differentiation in LCH patients supports redefinition of the disease as a myeloproliferative disorder and provides opportunities to develop novel approaches to diagnosis and therapy.
Collapse
|
26
|
Abstract
Although there have been dramatic improvements in the treatment of children with non-hodgkin lymphoma, hodgkin lymphoma and histiocytic disorders over the past 3 decades, many still relapse or are refractory to primary therapy. In addition, late effects such as 2nd malignancies, cardiomyopathy and infertility remain a major concern. Thus, this review focuses on the current state of the science and, in particular, novel treatment strategies that are aimed at improving outcomes for all pediatric patients with lymphoma and histiocytic disorders while reducing treatment related morbidity.
Collapse
Affiliation(s)
- Carl E Allen
- Department of Pediatrics, Texas Children's Cancer Center, Baylor College of Medicine, 1102 Bates St, Houston, TX 77030, USA
| | - Kara M Kelly
- Herbert Irving Child and Adolescent Oncology Center, Morgan Stanley Children's Hospital, New York-Presbyterian, Columbia University Medical Center, 161 Fort Washington Ave, New York, NY 10032, USA
| | - Catherine M Bollard
- Program for Cell Enhancement and Technologies for Immunotherapy, BMT Division, Department of Pediatrics, Children's National Health System, The George Washington University, 111 Michigan Avenue, Northwest, Washington, DC 20010, USA.
| |
Collapse
|
27
|
Berres ML, Merad M, Allen CE. Progress in understanding the pathogenesis of Langerhans cell histiocytosis: back to Histiocytosis X? Br J Haematol 2014; 169:3-13. [PMID: 25430560 DOI: 10.1111/bjh.13247] [Citation(s) in RCA: 105] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Langerhans cell histiocytosis (LCH), the most common histiocytic disorder, is characterized by the accumulation of CD1A(+) /CD207(+) mononuclear phagocytes within granulomatous lesions that can affect nearly all organ systems. Historically, LCH has been presumed to arise from transformed or pathologically activated epidermal dendritic cells called Langerhans cells. However, new evidence supports a model in which LCH occurs as a consequence of a misguided differentiation programme of myeloid dendritic cell precursors. Genetic, molecular and functional data implicate activation of the ERK signalling pathway at critical stages in myeloid differentiation as an essential and universal driver of LCH pathology. Based on these findings, we propose that LCH should be re-defined as an inflammatory myeloid neoplasia. Increased understanding of LCH pathogenesis will provide opportunities to optimize and personalize therapy through improved risk-stratification, targeted therapy and assessment of therapy response based on specific molecular features and origin of the pathological myeloid cells.
Collapse
Affiliation(s)
- Marie-Luise Berres
- Department of Oncological Sciences, Mount Sinai School of Medicine, New York, NY, USA; Tisch Cancer Institute, Mount Sinai School of Medicine, New York, NY, USA; Immunology Institute, Mount Sinai School of Medicine, New York, NY, USA; Department of Internal Medicine III, University Hospital, RWTH Aachen, Aachen, Germany
| | | | | |
Collapse
|
28
|
Vaiselbuh SR, Bryceson YT, Allen CE, Whitlock JA, Abla O. Updates on histiocytic disorders. Pediatr Blood Cancer 2014; 61:1329-35. [PMID: 24610771 DOI: 10.1002/pbc.25017] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 02/10/2014] [Indexed: 02/06/2023]
Abstract
Histiocytic disorders are rare entities that are becoming more recognized as our understanding of the molecular pathogenesis lead to novel diagnostic tests and targeted drug development. A symposium held at the American Society of Pediatric Hematology/Oncology (ASPHO) 2013 Annual Meeting discussed new insights into histiocytic disorders. This review highlights the symposium presentations, divided into three sections encompassing Langerhans cell histiocytosis (LCH), hemophagocytic lymphohistiocytosis (HLH) and Rosai Dorfman disease (RDD) including subsections on pathogenesis, clinical diagnostic criteria and novel insights into treatment. Details of other histiocytic disorders as well as the standard treatment guidelines have been published elsewhere and are beyond the scope of this discussion [Haupt et al. (2013). Pediatr Blood Cancer 60:175-184; Henter et al. (2007). Pediatr Blood Cancer 48:124-131].
Collapse
Affiliation(s)
- Sarah R Vaiselbuh
- Children's Cancer Center, Staten Island University Hospital, Staten Island, New York
| | | | | | | | | |
Collapse
|
29
|
Simko SJ, Tran HD, Jones J, Bilgi M, Beaupin LK, Coulter D, Garrington T, McCavit TL, Moore C, Rivera-Ortegón F, Shaffer L, Stork L, Turcotte L, Welsh EC, Hicks MJ, McClain KL, Allen CE. Clofarabine salvage therapy in refractory multifocal histiocytic disorders, including Langerhans cell histiocytosis, juvenile xanthogranuloma and Rosai-Dorfman disease. Pediatr Blood Cancer 2014; 61:479-87. [PMID: 24106153 PMCID: PMC4474604 DOI: 10.1002/pbc.24772] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 08/21/2013] [Indexed: 01/09/2023]
Abstract
BACKGROUND Existing therapies for recurrent or refractory histiocytoses, including Langerhans cell histiocytosis (LCH), juvenile xanthogranuloma (JXG), and Rosai-Dorfman disease (RDD), have limited effectiveness. We report our experience with using clofarabine as therapy in children with recurrent or refractory histiocytic disorders, including LCH (11 patients), systemic JXG (4 patients), and RDD (3 patients). METHODS Patients treated with clofarabine for LCH, JXG, or RDD by Texas Children's Hospital physicians or collaborators between May 2011 and January 2013 were reviewed for response and toxicity. RESULTS Patients were treated with a median of three chemotherapeutic regimens prior to clofarabine. Clofarabine was typically administered at 25 mg/m(2) /day for 5 days. Cycles were administered every 28 days for a median of six cycles (range: 2-8 cycles). Seventeen of 18 patients are alive. All surviving patients showed demonstrable improvement after two to four cycles of therapy, with 11 (61%) complete responses, 4 (22%) partial responses, and 2 patients still receiving therapy. Five patients experienced disease recurrence, but three of these subsequently achieved complete remission. All patients with JXG and RDD had complete or partial response at conclusion of therapy. Side effects included neutropenia in all patients. Recurring but sporadic toxicities included prolonged neutropenia, severe vomiting, and bacterial infections. CONCLUSION Clofarabine has activity against LCH, JXG, and RDD in heavily pretreated patients, but prospective multi-center trials are warranted to determine long-term efficacy, optimal dosing, and late toxicity of clofarabine in this population.
Collapse
Affiliation(s)
- Stephen J. Simko
- Baylor College of Medicine, Houston, TX,Texas Children’s Cancer and Hematology Centers, Houston, TX
| | | | | | - Mrinalini Bilgi
- Baylor College of Medicine, Houston, TX,Texas Children’s Cancer and Hematology Centers, Houston, TX
| | | | - Don Coulter
- University of Nebraska Medical Center, Omaha, NE
| | | | | | | | | | | | - Linda Stork
- Oregon Health and Science University, Portland, OR
| | | | | | | | - Kenneth L. McClain
- Baylor College of Medicine, Houston, TX,Texas Children’s Cancer and Hematology Centers, Houston, TX
| | - Carl E. Allen
- Baylor College of Medicine, Houston, TX,Texas Children’s Cancer and Hematology Centers, Houston, TX
| |
Collapse
|