Possible involvement of CXCR3-CXCR6 + CD4 + T cells in Langerhans cell histiocytosis. 2023

Akemi Tokutsu, and Yosuke Okada, and Akira Kurozumi, and Kenichi Tanaka, and Satoshi Kubo, and Yoshiya Tanaka
First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushyu-shi, Kitakyushu, 807-8555, Japan.

BACKGROUND Langerhans cell histiocytosis (LCH) is a condition characterized by proliferation of Langerhans cells and wide-range pathologies, ranging from single granulomatous lesions to multi-organ involvement, associated with tissue destruction. LCH pathogenesis remains obscure although association with interleukin (IL)-17A has been reported. We report here a case that illustrates the potential pathogenic role of helper T17 (Th17) cells in LCH-related bone destruction. METHODS The patient was a 66-year-old woman. The clinical course included craniectomy and bone mass excision in X-9, diagnosis of LCH confirmed by histopathology, followed by 26-month chemotherapy. In August X, the patient was diagnosed with complete central diabetes insipidus. Symptoms improved after treatment with desmopressin. Pituitary magnetic resonance imaging showed swelling extending from the suprasellar region to the pituitary stalk, suggestive of LCH recurrence. This was followed by chemotherapy combined with mercaptopurine hydrate.  RESULTS: Subsequent peripheral blood lymphocyte analysis showed marked increase in activated Th17 cells (CXCR3-CXCR6+ CD4+ T cells). Double staining for CD4 and IL-17 by immunofluorescence of pathological tissue samples obtained during temporal bone mass excision, which confirmed the diagnosis of LCH in X-9, showed areas of combined presence of CD4-positive cells and IL-17-positive cells. Chemotherapy resulted in size reduction of the pituitary lesion and decrease in peripheral blood-activated Th17 cells. CONCLUSIONS We found abundant peripheral blood-activated Th17 cells and high percentages of IL-17-producing cells in osteolytic bone lesions in LCH. This finding, together with the decrease in peripheral blood-activated Th17 cells following chemotherapy, suggests the potential involvement of activated Th17 cells in LCH-related osteolysis.

UI MeSH Term Description Entries
D008279 Magnetic Resonance Imaging Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques. Chemical Shift Imaging,MR Tomography,MRI Scans,MRI, Functional,Magnetic Resonance Image,Magnetic Resonance Imaging, Functional,Magnetization Transfer Contrast Imaging,NMR Imaging,NMR Tomography,Tomography, NMR,Tomography, Proton Spin,fMRI,Functional Magnetic Resonance Imaging,Imaging, Chemical Shift,Proton Spin Tomography,Spin Echo Imaging,Steady-State Free Precession MRI,Tomography, MR,Zeugmatography,Chemical Shift Imagings,Echo Imaging, Spin,Echo Imagings, Spin,Functional MRI,Functional MRIs,Image, Magnetic Resonance,Imaging, Magnetic Resonance,Imaging, NMR,Imaging, Spin Echo,Imagings, Chemical Shift,Imagings, Spin Echo,MRI Scan,MRIs, Functional,Magnetic Resonance Images,Resonance Image, Magnetic,Scan, MRI,Scans, MRI,Shift Imaging, Chemical,Shift Imagings, Chemical,Spin Echo Imagings,Steady State Free Precession MRI
D010014 Osteolysis Dissolution of bone that particularly involves the removal or loss of calcium. Osteolyses
D005260 Female Females
D006646 Histiocytosis, Langerhans-Cell A group of disorders resulting from the abnormal proliferation of and tissue infiltration by LANGERHANS CELLS which can be detected by their characteristic Birbeck granules (X bodies), or by monoclonal antibody staining for their surface CD1 ANTIGENS. Langerhans-cell granulomatosis can involve a single organ, or can be a systemic disorder. Histiocytosis X,Langerhans-Cell Granulomatosis,Langerhans-Cell Histiocytosis,Hand-Schueller-Christian Disease,Hand-Schueller-Christian Syndrome,Hand-Schüller-Christian Disease,Hand-Schüller-Christian Syndrome,Hashimoto-Pritzger Disease,Histiocytosis, Generalized,Histiocytosis-X,Langerhans Cell Granulomatosis,Langerhans Cell Granulomatosis, Pulmonary,Langerhans Cell Histiocytosis,Letterer-Siwe Disease,Non-Lipid Reticuloendotheliosis,Pulmonary Histiocytosis X,Pulmonary Langerhans Cell Granulomatosis,Schueller-Christian Disease,Systemic Aleukemic Reticuloendotheliosis,Type 2 Histiocytosis,Aleukemic Reticuloendothelioses, Systemic,Aleukemic Reticuloendotheliosis, Systemic,Cell Granulomatoses, Langerhans,Cell Granulomatosis, Langerhans,Cell Histiocytoses, Langerhans,Cell Histiocytosis, Langerhans,Disease, Hand-Schueller-Christian,Disease, Hand-Schüller-Christian,Disease, Hashimoto-Pritzger,Disease, Letterer-Siwe,Disease, Schueller-Christian,Diseases, Hashimoto-Pritzger,Generalized Histiocytoses,Generalized Histiocytosis,Granulomatoses, Langerhans Cell,Granulomatosis, Langerhans Cell,Granulomatosis, Langerhans-Cell,Hand Schueller Christian Disease,Hand Schueller Christian Syndrome,Hand Schüller Christian Disease,Hand Schüller Christian Syndrome,Hashimoto Pritzger Disease,Hashimoto-Pritzger Diseases,Histiocytoses, Generalized,Histiocytoses, Langerhans Cell,Histiocytoses, Type 2,Histiocytosis X, Pulmonary,Histiocytosis, Langerhans Cell,Histiocytosis, Type 2,Langerhans Cell Granulomatoses,Langerhans Cell Histiocytoses,Letterer Siwe Disease,Non Lipid Reticuloendotheliosis,Non-Lipid Reticuloendothelioses,Reticuloendothelioses, Non-Lipid,Reticuloendothelioses, Systemic Aleukemic,Reticuloendotheliosis, Non-Lipid,Reticuloendotheliosis, Systemic Aleukemic,Schueller Christian Disease,Syndrome, Hand-Schueller-Christian,Syndrome, Hand-Schüller-Christian,Systemic Aleukemic Reticuloendothelioses,Type 2 Histiocytoses
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000075744 Receptors, CXCR6 CXCR receptors that are specific for CHEMOKINE CXCL16. They are expressed by lymphoid tissues, activated T-cells, and also function as co-receptors for SIMIAN IMMUNODEFICIENCY VIRUSES; HIV-2; and HIV-1 infection of MACROPHAGES. Bonzo Receptor,CXC Chemokine Receptor 6,STRL33 Protein,CXCR6 Receptors,Receptor, Bonzo
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D015496 CD4-Positive T-Lymphocytes A critical subpopulation of T-lymphocytes involved in the induction of most immunological functions. The HIV virus has selective tropism for the T4 cell which expresses the CD4 phenotypic marker, a receptor for HIV. In fact, the key element in the profound immunosuppression seen in HIV infection is the depletion of this subset of T-lymphocytes. T4 Cells,T4 Lymphocytes,CD4-Positive Lymphocytes,CD4 Positive T Lymphocytes,CD4-Positive Lymphocyte,CD4-Positive T-Lymphocyte,Lymphocyte, CD4-Positive,Lymphocytes, CD4-Positive,T-Lymphocyte, CD4-Positive,T-Lymphocytes, CD4-Positive,T4 Cell,T4 Lymphocyte
D054367 Receptors, CXCR3 CXCR receptors that are expressed on the surface of a number of cell types, including T-LYMPHOCYTES; NK CELLS; DENDRITIC CELLS; and a subset of B-LYMPHOCYTES. The receptors are activated by CHEMOKINE CXCL9; CHEMOKINE CXCL10; and CHEMOKINE CXCL11. Antigens, CD183,CD183 Antigens,CXC Chemokine Receptor 3,CXCR3 Receptors,CMKBR3 Chemokine Receptors,CXC Chemokine Receptors 3,CXCR3 Receptor,Chemokine (C-C Motif) Receptor 3,Chemokine Receptors, CMKBR3,Receptor, CXCR3,Receptors, CMKBR3 Chemokine
D020381 Interleukin-17 A proinflammatory cytokine produced primarily by T-LYMPHOCYTES or their precursors. Several subtypes of interleukin-17 have been identified, each of which is a product of a unique gene. IL-17,CTLA-8,CTLA8,Cytokine CX2,Cytokine ML-1,Cytotoxic T lymphocyte-Associated Antigen 8,IL-17A,IL-17B,IL-17C,IL-17E,IL-17F,Interleukin 17,Interleukin-17A,Interleukin-17B,Interleukin-17C,Interleukin-17E,Interleukin-17F,Interleukin-25,CX2, Cytokine,Cytokine ML 1,Cytotoxic T lymphocyte Associated Antigen 8,IL 17E,Interleukin 17A,Interleukin 17B,Interleukin 17C,Interleukin 17E,Interleukin 17F,Interleukin 25

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