Dendritic cells (DCs), named for their probing, ‘tree-like’ or dendritic shapes, are responsible for the initiation of adaptive immune responses and hence function as the ‘sentinels’ of the immune system.
A recent comprehensive review of dendritic sarcomas by Saygin et al8 presented the demographics, clinicopathologic features, and therapeutic outcomes of 100 cases of IDCS. Am J Clin Pathol 2009;132:928–939. (B) The disrupted follicles are highlighted by CD21, not expressed in the tumor cells (CD21, original magnification ×20). Immunity 2007;26:741–750. The term dendritic cells was coined in 1973 by Ralph M. Steinman and Zanvil A.
Horseshoe- or kidney-shaped nuclei could also be observed in IDCS. Mod Pathol 2011;24:1421–1432. Subsequent treatment with tumor necrosis factor (TNF) further differentiates the iDCs into mature dendritic cells. A type of antigen-presenting cell found in lymph nodes and lymphoid tissue. The median survival in the group of patients with this diagnostic is of 9 months in metastatic disease local disease cases. [14], As mentioned above, mDC probably arise from monocytes, white blood cells which circulate in the body and, depending on the right signal, can turn into either dendritic cells or macrophages. Three types of DCs have been defined in human blood: the CD1c+ myeloid DCs, the CD141+ myeloid DCs and the CD303+ plasmacytoid DCs.
Currently, no standard of care exists for the treatment of IDCS. BRAF V600E has been reported in IDCS. See also: cell Han SW, Kim ZS, Kim HM. © 2018 The Authors. Plating of PBMCs in a tissue culture flask permits adherence of monocytes.
However, the role of adjuvant radiotherapy after surgery is unclear. Nonetheless, they are often used for research as they are still much more readily available than genuine DCs.
Paul Langerhans first described DCs in human skin in 1868 but thought they were cutaneous nerve cells. cytopenias) of bone marrow failure. In the lymph node and secondary lymphoid organs, all three cell types can activate naive T cells.
A PET scan performed a month after the excision revealed persistent fluorodeoxyglucose (FDG) avidity in an area of the left posterior triangle of the neck measuring 1.08 cm in maximum transverse diameter, with a maximum standardized uptake value of 3.14 (Figure 1). Andriko JW, Kaldjian EP, Tsokos M. Reticulum cell neoplasms of lymph nodes: a clinicopathologic study of 11 cases with recognition of a new subtype derived from fibroblastic reticular cells.
Dendritic cells (DCs), named for their probing, ‘tree-like’ or dendritic shapes, are responsible for the initiation of adaptive immune responses and hence function as the ‘sentinels’ of the immune system. Chemotherapy is the preferred treatment for patients with metastatic IDCS. In other areas, tumor cells had epithelioid or histiocytoid cell morphology or had convolutions resembling Langerhans cells. Immature dendritic cells constantly sample the surrounding environment for pathogens such as viruses and bacteria. To investigate the clinicopathologic features and differential diagnoses of interdigitating dendritic cell sarcoma (IDCS), the clinical, morphological and immunohistochemical features of eight cases of IDCS were collected and analyzed. The morphology of dendritic cells results in a very large surface-to-volume ratio. Rabkin MS, Kjeldsberg CR, Hammond ME. Chemotherapy regimens usually used are ABVD (doxorubicin, bleomycin, vinblastine, dacarbazine), CHOP (cyclophosphamide, doxorubicin, vincristine, prednisone), ICE (ifosfamide, cisplatin, etoposide) or DHAP (dexamethasone, cisplatin, high dose of cytarabine) (Pokuri VK et al., 2015). Weiss LM, Berry GJ, Dorfman RF.
Frequently, cell borders are indistinct. Rousselet MC, Francois S, Croue A. That is, the dendritic cell has a very large surface area compared to the overall cell volume. No axillary, supraclavicular, or inguinal lymphadenopathy was present, and no organomegaly was identified. Kristina M. Gregory, RN, MSN, OCN, Vice President, Clinical Information Operations, has disclosed that she has no relevant financial relationships.
Occasional epithelioid cells, bizarre atypia, or Reed-Sternberg–like cells, as seen in the present case, may superficially resemble classical Hodgkin lymphoma. DCs are bone marrow (BM)-derived leukocytes and are the most potent Interdigitating dendritic cell tumor of the testis: a novel testicular spindle cell neoplasm, Sarcoma arising from interdigitating reticulum cells: report of a case, studied with light and electron microscopy, and enzyme- and immunohistochemistry, Clinical, ultrastructural immunohistochemical and DNA content analysis of lymphomas having features of interdigitating reticulum cells, Interdigitating dendritic cell sarcoma. Dendritic cells have also been found in turtles.[34].
Although this neoplasm typically occurs anywhere along the lymph nodes, it can also be found at extranodal sites, especially in the head and neck. For comments and suggestions or contributions, please contact us, http://AtlasGeneticsOncology.org/Anomalies/InterdigitDendritCellSarcID1727.html, Diego Conde Royo, Luis Miguel Juárez-Salcedo, Samir Dalia.
Only about 100 cases have been reported in the literature (Saygin C et al., 2013). [3 H]TdR labeling suggests they are replaced from dividing precursors (in the bone marrow) at a rate of about 10% per day. Ms. Green has disclosed that she has no relevant financial relationships. However, there are differences in the cytokines produced depending on the type of dendritic cell. Immature dendritic cells may also phagocytose small quantities of membrane from live own cells, in a process called nibbling. It has been proposed that the greater activity of antigen presentation in young people could explain their worse prognostic (Saygin C et al., 2013). Immature dendritic cells are also called veiled cells, as they possess large cytoplasmic 'veils' rather than dendrites. Steinman RM, Pack M, Inaba K. Dendritic cells in the T-cell areas of lymphoid organs. Lyon, France: IARC Press; 2008:353–367. Interdigitating Dendritic Cell Sarcoma (IDCS) is a very uncommon neoplasm embedded in the group of histiocytic and dendritic cell neoplasms.
Many other viruses, such as the SARS virus seems to use DC-SIGN to 'hitchhike' to its target cells. In consequence, the disease has a poor overall prognosis and newer chemotherapeutic and novel non-chemotherapeutic drug regimens to improve the situation are under study.[22]. [21] Blastic plasmacytoid dendritic cell neoplasm has a high rate of recurrence following initial treatments with various chemotherapy regimens. Immature dendritic cells phagocytose pathogens and degrade their proteins into small pieces and upon maturation present those fragments at their cell surface using MHC molecules. Dendritic cells that circulate in blood do not have all the typical features of their counterparts in tissue, i.e. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
Arch Pathol Lab Med 1994;118:183–188.
The observation was made over 3 h with one frame every 30 s. A single dendritic cell can be seen here efficiently taking up at least four conidia in its vicinity. NCCN designates this journal-based CME activity for a maximum of 1.0 AMA PRA Category 1 Credit(s)™. © 2019-2020 National Comprehensive Cancer Network. Dendritic cells are characterized by being highly efficient antigen presenting cells, which is why they are able to activate different cells that activate the adaptive immune response and, consequently, the production of antibodies. Systemic symptoms like fatigue, fever or weight are less common than others DCs neoplasms; even so they have been described in IDCS with nodal and extranodal disease (Saygin C et al., 2013). In other organisms, the function of dendritic cells can differ slightly. A preceding tumor may have a considerable impact on the occurrence of IDCS. Virchows Arch 2009;454:333–339.
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