Study of Regulatory T-Cells in Patients with Gastric Malt Lymphoma: Influence on Treatment Response and Outcome
García, Mar ; Bellosillo, Beatriz ; Sánchez-González, Blanca ; García-Payarols, Francesc ; Seoane, Agustin ; Ferrer, Ana Maria ; Gimeno, Eva ; Barranco, Luis Eugenio ; Torner, Ariadna ; Solé, Francesc ; Besses, Carles ; Serrano, Sergi ; Salar, Antonio ; Navarro, Alfons
Resumen: Purpose
FOXP3+ regulatory T cells (Treg) play an essential role in modulating host responses to tumors and infections. The role of these cells in the pathogenesis of MALT lymphomas remains unknown. The aims of the study were to quantify the number of infiltrating FOXP3+ and CD3+ cells in patients with gastric MALT lymphoma at diagnosis and to study kinetics of these cells and CD20+ tumor cells after treatment and during long-term follow-up.
Methods
FOXP3+, CD3+ and CD20+ cells were analyzed by immunohistochemistry and the number of cells was quantified using a micrometric ocular. Samples of 35 patients with gastric MALT lymphoma at diagnosis and after treatment were included. Diagnostic samples were compared to 19 cases of chronic gastritis and diffuse large B-cell lymphoma (DLBCL) of the stomach.
Results
The median number of FOXP3+ infiltrating cells was higher (27 cells/cm2) in gastric MALT patients than in DLBCL (10 cells; p = 0.162) but similar to chronic gastritis (20 cells; p = 0.605). No characteristic or specific distribution pattern of infiltrating FOXP3+ cells was found. Gastric MALT lymphoma patients responding to bacterial eradication therapy had higher number of FOXP3+ cells at study entry. Kinetics of both infiltrating FOXP3+ cells and tumor CD20+ cells were strongly dependent on the treatment administered.
Discussion
Gastric MALT lymphomas have a number of Treg cells more similar to chronic gastritis than to DLBCL. Patients with higher number of tumor infiltrating FOXP3+ cells at study entry seem to have better response to antibiotics. Kinetics of Treg and tumor cells are influenced by type of treatment
Idioma: Inglés
DOI: 10.1371/journal.pone.0051681
Año: 2012
Publicado en: PLoS ONE 7, 12 (2012), e51681
ISSN: 1932-6203
Factor impacto JCR: 3.73 (2012)
Categ. JCR: MULTIDISCIPLINARY SCIENCES rank: 7 / 57 = 0.123 (2012) - Q1 - T1
Financiación: info:eu-repo/grantAgreement/ES/FIS FEDER/07/0586
Tipo y forma: Artículo (Versión definitiva)
Debe reconocer adecuadamente la autoría, proporcionar un enlace a la licencia e indicar si se han realizado cambios. Puede hacerlo de cualquier manera razonable, pero no de una manera que sugiera que tiene el apoyo del licenciador o lo recibe por el uso que hace.
Exportado de SIDERAL (2022-08-24-09:50:22)
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FOXP3+ regulatory T cells (Treg) play an essential role in modulating host responses to tumors and infections. The role of these cells in the pathogenesis of MALT lymphomas remains unknown. The aims of the study were to quantify the number of infiltrating FOXP3+ and CD3+ cells in patients with gastric MALT lymphoma at diagnosis and to study kinetics of these cells and CD20+ tumor cells after treatment and during long-term follow-up.
Methods
FOXP3+, CD3+ and CD20+ cells were analyzed by immunohistochemistry and the number of cells was quantified using a micrometric ocular. Samples of 35 patients with gastric MALT lymphoma at diagnosis and after treatment were included. Diagnostic samples were compared to 19 cases of chronic gastritis and diffuse large B-cell lymphoma (DLBCL) of the stomach.
Results
The median number of FOXP3+ infiltrating cells was higher (27 cells/cm2) in gastric MALT patients than in DLBCL (10 cells; p = 0.162) but similar to chronic gastritis (20 cells; p = 0.605). No characteristic or specific distribution pattern of infiltrating FOXP3+ cells was found. Gastric MALT lymphoma patients responding to bacterial eradication therapy had higher number of FOXP3+ cells at study entry. Kinetics of both infiltrating FOXP3+ cells and tumor CD20+ cells were strongly dependent on the treatment administered.
Discussion
Gastric MALT lymphomas have a number of Treg cells more similar to chronic gastritis than to DLBCL. Patients with higher number of tumor infiltrating FOXP3+ cells at study entry seem to have better response to antibiotics. Kinetics of Treg and tumor cells are influenced by type of treatment
Idioma: Inglés
DOI: 10.1371/journal.pone.0051681
Año: 2012
Publicado en: PLoS ONE 7, 12 (2012), e51681
ISSN: 1932-6203
Factor impacto JCR: 3.73 (2012)
Categ. JCR: MULTIDISCIPLINARY SCIENCES rank: 7 / 57 = 0.123 (2012) - Q1 - T1
Financiación: info:eu-repo/grantAgreement/ES/FIS FEDER/07/0586
Tipo y forma: Artículo (Versión definitiva)
Debe reconocer adecuadamente la autoría, proporcionar un enlace a la licencia e indicar si se han realizado cambios. Puede hacerlo de cualquier manera razonable, pero no de una manera que sugiera que tiene el apoyo del licenciador o lo recibe por el uso que hace. Exportado de SIDERAL (2022-08-24-09:50:22)
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