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Ramos PM, Melo DF, Lemes LR, Alcantara G, Miot HA, Lyra MR, Vargas TJDS. Folliculitis decalvans and lichen planopilaris phenotypic spectrum: case report of two paediatric cases. J Eur Acad Dermatol Venereol 2021; 35:e674-e676. [PMID: 34014598 DOI: 10.1111/jdv.17379] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/26/2021] [Accepted: 04/28/2021] [Indexed: 01/05/2023]
Affiliation(s)
- P M Ramos
- Department of Dermatology and Radiotherapy, São Paulo State University (UNESP), Botucatu, Brazil
| | - D F Melo
- Department of Dermatology, University of State of Rio de Janeiro - UERJ, Brazil
| | - L R Lemes
- Department of Dermatology, University of State of Rio de Janeiro - UERJ, Brazil
| | - G Alcantara
- Department of Dermatology and Radiotherapy, São Paulo State University (UNESP), Botucatu, Brazil
| | - H A Miot
- Department of Dermatology and Radiotherapy, São Paulo State University (UNESP), Botucatu, Brazil
| | - M R Lyra
- Oswaldo Cruz Foundation - Infectious Disease in Dermatology, Rio de Janeiro, Brazil
| | - T J de S Vargas
- Department of Dermatology, Federal Hospital of Bonsucesso, Rio de Janeiro, Brazil
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Fichman V, do Valle ACF, Freitas DFS, Sampaio FMS, Lyra MR, de Macedo PM, Almeida-Paes R, de Oliveira RVC, Gutierrez-Galhardo MC. Cryosurgery for the treatment of cutaneous sporotrichosis: experience with 199 cases. Br J Dermatol 2019; 180:1541-1542. [PMID: 30560992 DOI: 10.1111/bjd.17532] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- V Fichman
- Infectious Dermatology Clinical Research Laboratory, Rio de Janeiro, Brazil
| | - A C F do Valle
- Infectious Dermatology Clinical Research Laboratory, Rio de Janeiro, Brazil
| | - D F S Freitas
- Infectious Dermatology Clinical Research Laboratory, Rio de Janeiro, Brazil
| | - F M S Sampaio
- Infectious Dermatology Clinical Research Laboratory, Rio de Janeiro, Brazil
| | - M R Lyra
- Laboratory for Leishmaniasis Surveillance, Rio de Janeiro, Brazil
| | - P M de Macedo
- Infectious Dermatology Clinical Research Laboratory, Rio de Janeiro, Brazil
| | | | - R V C de Oliveira
- Clinical Epidemiology Laboratory, Evandro Chagas National Institute of Infectious Diseases (INI), Fiocruz, Rio de Janeiro, Brazil
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Cunha CF, Ferraz R, Pimentel MIF, Lyra MR, Schubach AO, Da-Cruz AM, Bertho AL. Cytotoxic cell involvement in human cutaneous leishmaniasis: assessments in active disease, under therapy and after clinical cure. Parasite Immunol 2016; 38:244-54. [PMID: 26928901 DOI: 10.1111/pim.12312] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 02/23/2016] [Indexed: 12/11/2022]
Abstract
Cutaneous leishmaniasis (CL) is an important public health issue worldwide. The control of Leishmania infection depends on cellular immune mechanisms, and the inflammatory response may contribute to pathogenesis. A beneficial role of CD8(+) T lymphocytes has been proposed; nevertheless, other studies suggest a cytotoxic role of CD8(+) T lymphocytes involved in tissue damage, showing controversial role of these cells. The goal of the current study was to understand the immunopathology of CL and determine the profile of cytotoxic cells--such as CD4(+) T, natural killer and natural killer T cells--that might be involved in triggering immunological mechanisms, and may lead to cure or disease progression. The frequencies of cytotoxic cell populations in peripheral blood, obtained from patients with active disease, during treatment and after clinical healing, were assessed by flow cytometry. Cytotoxicity could not be related to a deleterious role in Leishmania braziliensis infection, as patients with active CL showed similar percentages of degranulation to healthy individuals (HI). Cured patients exhibited a lower percentage of degranulating cells, which may be due to a downregulation of the immune response. The understanding of the immunopathological mechanisms involved in CL and the commitment of cytotoxic cells enables improvements in therapeutic strategies.
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Affiliation(s)
- C F Cunha
- Laboratory of Immunoparasitology, Oswaldo Cruz Institute (IOC), FIOCRUZ, Rio de Janeiro, RJ, Brazil
| | - R Ferraz
- Laboratory of Immunoparasitology, Oswaldo Cruz Institute (IOC), FIOCRUZ, Rio de Janeiro, RJ, Brazil.,Flow Cytometry Sorting Core, Oswaldo Cruz Institute (IOC), FIOCRUZ, Rio de Janeiro, RJ, Brazil
| | - M I F Pimentel
- Laboratory of Surveillance for Leishmaniasis, Evandro Chagas National Institute of Infectology (INI), FIOCRUZ, Rio de Janeiro, RJ, Brazil
| | - M R Lyra
- Laboratory of Surveillance for Leishmaniasis, Evandro Chagas National Institute of Infectology (INI), FIOCRUZ, Rio de Janeiro, RJ, Brazil
| | - A O Schubach
- Laboratory of Surveillance for Leishmaniasis, Evandro Chagas National Institute of Infectology (INI), FIOCRUZ, Rio de Janeiro, RJ, Brazil
| | - A M Da-Cruz
- Laboratory of Interdisciplinary Medical Research, Oswaldo Cruz Institute (IOC), FIOCRUZ, Rio de Janeiro, RJ, Brazil
| | - A L Bertho
- Laboratory of Immunoparasitology, Oswaldo Cruz Institute (IOC), FIOCRUZ, Rio de Janeiro, RJ, Brazil.,Flow Cytometry Sorting Core, Oswaldo Cruz Institute (IOC), FIOCRUZ, Rio de Janeiro, RJ, Brazil
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