Regulatory T cells increase in breast cancer and in stage IV breast cancer.
Cancer Immunol Immunother
; 61(6): 911-6, 2012 Jun.
Article
en En
| MEDLINE
| ID: mdl-22116346
ABSTRACT
Expression levels of VEGF and Her-2, levels of T-regulatory (Treg) cells, levels of CD3+ cells, and ratios of Th (CD4+ T cells)/Tr (Treg) cells were compared between stage I, II, III, and IV breast cancer patients (n = 120) prior to chemotherapy and healthy women (n = 30). Cells from peripheral blood were counted by flow cytometry, Her-2 and VEGF expression was detected by pathological examination, and Her-2 was detected by FISH. Breast cancer patients had more Treg cells and a lower ratio of Th/Tr cells than the healthy women. Stage IV breast cancer patients had more Treg cells and a lower ratio of Th/Tr cells than stage I, II, or III breast cancer patients. Patients positive for VEGF had a lower ratio of Th/Tr cells compared with patients negative for VEGF, and those positive for both VEGF and Her-2 also had a lower ratio of Th/Tr cells compared with patients not positive for both VEGF and Her-2. The decreased Th/Tr cells ratio indicates impaired immune function, suggesting that the stage IV breast cancer and the Her-2/VEGF-positive breast cancer patients have lower immune function.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Neoplasias de la Mama
/
Linfocitos T Reguladores
Límite:
Adolescent
/
Adult
/
Aged
/
Female
/
Humans
/
Middle aged
Idioma:
En
Año:
2012
Tipo del documento:
Article