PMID- 30944598 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231006 IS - 1792-1074 (Print) IS - 1792-1082 (Electronic) IS - 1792-1074 (Linking) VI - 17 IP - 5 DP - 2019 May TI - Dendritic cell distribution in mycosis fungoides vs. inflammatory dermatosis and other T-cell skin lymphoma. PG - 4055-4059 LID - 10.3892/ol.2019.10097 [doi] AB - Dendritic cells (DCs) are antigen-presenting cells with an important role in the innate and adaptive immune system. In skin lesions, cutaneous DCs (Langerhans cells, dermal DCs and plasmacytoid DCs) are involved in immune activation in inflammatory benign lesions, as well as in malignant lymphoid proliferations. Density and distribution of DCs in the dermal infiltrate can be helpful to differentiate benign, reactive infiltrate from malignant nature of the lymphoid population. We performed a retrospective study including 149 patients: 35 with mycosis fungoides, 35 with spongiotic dermatitis, 35 with psoriasis, 35 with lupus and 9 with cutaneous T-cell lymphomas (other than mycosis fungoides), diagnosed using histopathological and immunohistochemical stains. Density and distribution of DCs were evaluated using specific markers (CD1a, CD11c and langerin). In all cases, numerous DCs were identified in the dermal infiltrate. Their number was significantly increased in mycosis fungoides and T-cell lymphomas and moderately increased in inflammatory lesions. Variable patterns of distribution were identified such as clusters of DCs with arachnoid extension in mycosis fungoides, nodular pattern in inflammatory lesions and dispersed distribution with peripheric accumulation in T-skin lymphomas. Therefore, immunohistochemical characterization of DC distribution can be an adjuvant tool in differential diagnosis in inflammatory dermatosis and skin lymphomas. FAU - Cioplea, Mirela AU - Cioplea M AD - Department of Pathology, Colentina University Hospital, 020125 Bucharest, Romania. FAU - Caruntu, Costin AU - Caruntu C AD - Department of Physiology, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania. FAU - Zurac, Sabina AU - Zurac S AD - Department of Pathology, Colentina University Hospital, 020125 Bucharest, Romania. AD - Department of Pathology, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania. FAU - Bastian, Alexandra AU - Bastian A AD - Department of Pathology, Colentina University Hospital, 020125 Bucharest, Romania. AD - Department of Pathology, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania. FAU - Sticlaru, Liana AU - Sticlaru L AD - Department of Pathology, Colentina University Hospital, 020125 Bucharest, Romania. FAU - Cioroianu, Alexandra AU - Cioroianu A AD - Department of Pathology, Colentina University Hospital, 020125 Bucharest, Romania. FAU - Boda, Daniel AU - Boda D AD - Excellence Center in Dermatology, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania. AD - National Institute of Diabetes, Nutrition and Metabolic Diseases 'Prof. Dr. Nicolae Paulescu', 020475 Bucharest, Romania. FAU - Jugulete, Gheorghita AU - Jugulete G AD - Department of Infectious Diseases, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania. AD - National Institute of Infectious Diseases 'Prof. Dr. Matei Bals', 021105 Bucharest, Romania. FAU - Nichita, Luciana AU - Nichita L AD - Department of Pathology, Colentina University Hospital, 020125 Bucharest, Romania. AD - Department of Pathology, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania. FAU - Popp, Cristiana AU - Popp C AD - Department of Pathology, Colentina University Hospital, 020125 Bucharest, Romania. LA - eng PT - Journal Article DEP - 20190301 PL - Greece TA - Oncol Lett JT - Oncology letters JID - 101531236 PMC - PMC6444333 OTO - NOTNLM OT - cutaneous T cells lymphoma OT - dendritic cells OT - inflammatory dermatosis EDAT- 2019/04/05 06:00 MHDA- 2019/04/05 06:01 PMCR- 2019/03/01 CRDT- 2019/04/05 06:00 PHST- 2018/09/10 00:00 [received] PHST- 2019/01/10 00:00 [accepted] PHST- 2019/04/05 06:00 [entrez] PHST- 2019/04/05 06:00 [pubmed] PHST- 2019/04/05 06:01 [medline] PHST- 2019/03/01 00:00 [pmc-release] AID - OL-0-0-10097 [pii] AID - 10.3892/ol.2019.10097 [doi] PST - ppublish SO - Oncol Lett. 2019 May;17(5):4055-4059. doi: 10.3892/ol.2019.10097. Epub 2019 Mar 1.