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Multisystem Langerhans Cell Histiocytosis in Younger Infants First Presenting in Skin: A Case Series. J Pers Med 2022; 12:jpm12071024. [PMID: 35887522 PMCID: PMC9315804 DOI: 10.3390/jpm12071024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/05/2022] [Accepted: 06/16/2022] [Indexed: 11/16/2022] Open
Abstract
Objectives—To investigate the clinical characteristics, managements, outcome, and evaluate the risk factors of Multisystem (MS) Langerhans Cell Histiocytosis (LCH) with diverse skin lesions as the first sign in four young infants. Methods—Their clinical features, disease progression, therapy, and outcomes were reviewed and analyzed retrospectively. Results—The average onset age of skin lesions was about 2 months. Cases 1 and 2 had risk organs involved (RO+) and a lack of bone lesions, and progression could not be reversed by systemic chemotherapy. They both died eventually. Cases 3 and 4 (RO–) had bone involvement and were given systemic chemotherapy for a prolonged duration. Unluckily, Case 3 had a recurrence 2 years later, while Case 4’s recurrence happened nearly one year later, and diabetes insipidus one and a half years later. They both survived and are still in remission. Conclusion—MS-LCH infants with a low age of the first presentation in the skin are prone to dissemination, while RO+ is associated with high mortality. In addition, bone involvement may be a protective factor. Immunohistochemical examination of skin tissue facilitates correct early diagnosis, and adequate follow-up is necessary.
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Tang X, Guo X, Gao J, Sun JJ, Wan Z. Hemophagocytic Lymphohistiocytosis in Langerhans Cell Histiocytosis: A Case Series and Literature Review. J Pediatr Hematol Oncol 2022; 44:e20-e25. [PMID: 34133378 DOI: 10.1097/mph.0000000000002212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 04/08/2021] [Indexed: 11/26/2022]
Abstract
Langerhans cell histiocytosis (LCH) is characterized pathologically by langerin-positive (CD207+) dendritic cell proliferation and is considered by some as a myeloid neoplastic disorder. Hemophagocytic lymphohistiocytosis (HLH) is associated with immune dysregulation characterized by the accumulation of activated macrophages and hypercytokinemia. However, these 2 histiocytosis rarely coexist. Currently, the etiology, risk factors, optimal therapy, and outcomes of LCH-HLH remain unclear. We reviewed the medical records of 7 LCH-HLH patients from our hospital and analyzed 50 LCH-HLH patients reported in scientific literature. The median age of LCH onset of these 57 LCH-HLH patients was 1 year, and 91% (52/57) of patients diagnosed as LCH were less than 2 years old. Fifty-six LCH-HLH patients belonged to the multisystem LCH category and 84% (47/56) patients had risk-organ involvement. Twenty-three LCH-HLH patients were complicated with infection and 3 patients had a primary pathogenic mutation of HLH. Overall, 90% of LCH patients developed HLH at the diagnosis or during chemotherapy. Of the 57 LCH-HLH patients, 15 died. Multisystem LCH patients with risk-organ involvement under 2 years old were most likely to develop HLH when complicated with infection at diagnosis or during chemotherapy. Identifying LCH-HLH patients during early stages and treating them with prompt chemotherapy, hematopoietic stem cell transplantation, or supportive therapies are important for better survival.
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Affiliation(s)
- Xue Tang
- Department of Pediatrics, West China Second University Hospital, Sichuan University
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, Sichuan Province, China
| | - Xia Guo
- Department of Pediatrics, West China Second University Hospital, Sichuan University
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, Sichuan Province, China
| | - Ju Gao
- Department of Pediatrics, West China Second University Hospital, Sichuan University
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, Sichuan Province, China
| | - Jing-Jing Sun
- Department of Pediatrics, West China Second University Hospital, Sichuan University
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, Sichuan Province, China
| | - Zhi Wan
- Department of Pediatrics, West China Second University Hospital, Sichuan University
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, Sichuan Province, China
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High-risk LCH in infants is serially transplantable in a xenograft model but responds durably to targeted therapy. Blood Adv 2021; 4:717-727. [PMID: 32092141 DOI: 10.1182/bloodadvances.2019032367] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 01/22/2020] [Indexed: 01/18/2023] Open
Abstract
Langerhans cell histiocytosis (LCH) is a rare hematologic neoplasm characterized by a clonal proliferation of Langerhans-like cells. Genomic profiling has identified recurrent somatic activating mutations in the mitogen-activated protein kinase pathway, which are targetable by small-molecule inhibitors. However, key questions such as the curative potential of targeted therapy and the cell of origin remain unanswered. In this study, we describe clinical outcomes of a series of pediatric patients with multisystem BRAF V600E-mutant LCH, as well as the results of accompanying murine xenograft experiments. Four infants with LCH (range, 7-11 months at diagnosis) and secondary hemophagocytic lymphohistiocytosis were referred to our institution and subsequently treated with the BRAF V600E-specific inhibitor dabrafenib. All patients achieved complete clinical responses by 8 weeks of therapy, with remissions lasting a median of 36 months (range, 27-42 months). One infant successfully discontinued therapy long-term upon achieving a molecular response by real-time quantitative polymerase chain reaction (RT-qPCR). We further characterized the disease-propagating cell population in a subset of these patients by transplanting whole bone marrow into immunodeficient mice. Xenografted animals exhibited decreased survival with hematologic abnormalities, splenomegaly, and histiocytic infiltrates in the bone marrow resembling human disease. This process could also be secondarily transplanted, resulting in a comparable disease latency with similar histologic findings. These data further support the presence of a disease-initiating cell in the bone marrow compartment. We demonstrate that despite aggressive disease behavior in a xenograft model, these patients can achieve sustained clinical remissions with targeted monotherapy, with a select subset achieving molecular responses by RT-qPCR.
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Chellapandian D, Hines MR, Zhang R, Jeng M, van den Bos C, Santa-María López V, Lehmberg K, Sieni E, Wang Y, Nakano T, Williams JA, Fustino NJ, Astigarraga I, Dunkel IJ, Abla O, van Halteren AGS, Pei D, Cheng C, Weitzman S, Sung L, Nichols KE. A multicenter study of patients with multisystem Langerhans cell histiocytosis who develop secondary hemophagocytic lymphohistiocytosis. Cancer 2018; 125:963-971. [PMID: 30521100 DOI: 10.1002/cncr.31893] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 09/26/2018] [Accepted: 11/01/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Langerhans cell histiocytosis (LCH) is a rare myeloid neoplasm characterized by the presence of abnormal CD1a-positive (CD1a+ )/CD207+ histiocytes. Hemophagocytic lymphohistiocytosis (HLH) represents a spectrum of hyperinflammatory syndromes typified by the dysregulated activation of the innate and adaptive immune systems. Patients with LCH, particularly those with multisystem (MS) involvement, can develop severe hyperinflammation mimicking that observed in HLH. Nevertheless, to the authors' knowledge, little is known regarding the prevalence, timing, risk factors for development, and outcomes of children and young adults who develop HLH within the context of MS-LCH (hereafter referred to LCH-associated HLH). METHODS To gain further insights, the authors conducted a retrospective, multicenter study and collected data regarding all patients diagnosed with MS-LCH between 2000 and 2015. RESULTS Of 384 patients with MS-LCH, 32 were reported by their primary providers to have met the diagnostic criteria for HLH, yielding an estimated 2-year cumulative incidence of 9.3% ± 1.6%. The majority of patients developed HLH at or after the diagnosis of MS-LCH, and nearly one-third (31%) had evidence of an intercurrent infection. Patient age <2 years at the time of diagnosis of LCH; female sex; LCH involvement of the liver, spleen, and hematopoietic system; and a lack of bone involvement each were found to be independently associated with an increased risk of LCH-associated HLH. Patients with MS-LCH who met the criteria for HLH had significantly poorer 5-year survival compared with patients with MS-LCH who did not meet the criteria for HLH (69% vs 97%; P < .0001). CONCLUSIONS Given its inferior prognosis, further efforts are warranted to enhance the recognition and optimize the treatment of patients with LCH-associated HLH.
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Affiliation(s)
- Deepak Chellapandian
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada.,Blood and Marrow Transplant Program, Cancer and Blood Disorders Institute, Johns Hopkins All Children's Hospital, St. Petersburg, Florida.,Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Melissa R Hines
- Division of Critical Care, Department of Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Rui Zhang
- Hematology and Oncology Center, Beijing Children's Hospital, Beijing, China
| | - Michael Jeng
- Division of Pediatric Hematology/Oncology, Lucile Packard Children's Hospital Stanford, Palo Alto, California
| | - Cor van den Bos
- Department of Pediatric Oncology, Emma Children's Hospital, Academic Medical Center, Amsterdam, The Netherlands
| | | | - Kai Lehmberg
- Department of Paediatric Haematology/Oncology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Elena Sieni
- Department of Paediatric Haematology/Oncology, Meyer Children's University Hospital, Florence, Italy
| | - Yini Wang
- Department of Medical Oncology, Beijing Friendship Hospital, Beijing, China
| | - Taizo Nakano
- Pediatric Hematology/Oncology, Children's Hospital Colorado, University of Colorado School of Medicine, Denver, Colorado
| | - James A Williams
- Division of Pediatric Hematology/Oncology, Phoenix Children's Hospital, Phoenix, Arizona
| | - Nicholas J Fustino
- Pediatric Hematology/Oncology, Blank Children's Hospital, Des Moines, Iowa
| | - Itziar Astigarraga
- Department of Paediatric Haematology/Oncology, BioCruces Health Research Institute, Cruces University Hospital, Bizkaia, Spain
| | - Ira J Dunkel
- Pediatric Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Oussama Abla
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Astrid G S van Halteren
- Immunology Laboratory, Willem-Alexander Children's Hospital, Leiden University Medical Center, Leiden, The Netherlands
| | - Deqing Pei
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Cheng Cheng
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Sheila Weitzman
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Lillian Sung
- Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Kim E Nichols
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee
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Guo X, Li Q, Gao J. Langerhans cell histiocytosis complicated with hemophagocytic lymphohistiocytosis in a boy with a novel XIAP mutation: A case report. Medicine (Baltimore) 2018; 97:e13019. [PMID: 30383659 PMCID: PMC6221634 DOI: 10.1097/md.0000000000013019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
RATIONALE X-linked lymphoproliferative syndromes (XLPs) are rare, yet often fatal primary immunodeficiency diseases, which rarely manifest as Langerhans cell histiocytosis (LCH) complicated with hemophagocytic lymphohistiocytosis (HLH). Clinical data of a case of XLP-2 manifesting as LCH complicated with HLH was retrospectively analyzed to determine the etiology and causal gene. PATIENT CONCERNS AND DIAGNOSIS The diagnosis of multisystem LCH was confirmed by skin biopsy and other examinations in a 13-month boy with recurrent ear discharge, fever and hemorrhagic papules for 3 months. A good therapeutic response to LCH-III protocol-directed induction chemotherapy was achieved but unremitting HLH developed 6 weeks after the initiation of induction chemotherapy. To identify possible underlying genetic causes, gene mutation analysis was undertaken. A novel XIAP gene mutation (c.99delT, p.F33fsX37) was documented. INTERVENTIONS After the diagnosis of HLH had been confirmed, HLH-2004-directed chemotherapy was instituted. OUTCOMES The clinical condition of the patient had become progressively deteriorating after 8-week chemotherapy of HLH-2004 protocol, requiring frequent infusions of RBC suspensions and apheresis platelets. His parents decided to receive no further therapy, and the patient died soon after discharge. LESSONS Meticulous laboratory investigations including genetic studies should be undertaken in young children with LCH complicated with HLH and poor therapeutic response.
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