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  • Title: Deficiences in phenotype expression and function of dentritic cells from patients with early breast cancer.
    Author: Kichler-Lakomy C, Budinsky AC, Wolfram R, Hellan M, Wiltschke C, Brodowicz T, Viernstein H, Zielinski CC.
    Journal: Eur J Med Res; 2006 Jan 31; 11(1):7-12. PubMed ID: 16504954.
    Abstract:
    PURPOSE: Monocytes derived from patients with early breast cancer (EBC) have shown functional deficiencies. These functional deficiencies are characterized by changes in phenotype and morphology. We have expanded these investigations to dendritic cells generated from monocytes from patients with early breast cancer. - PATIENTS AND METHODS: Peripheral blood from 36 patients with EBC and from 26 healthy age-matched women was drawn and prepared for ex vivo generation of dendritic cells (DC) by incubation with granulocyte/macrophage-colony stimulating factor (GM-CSF) and interleukin 4 (IL4). The phenotype of DC was examined by flow-cytometry. T cell - proliferation was induced with tetanus toxoid pulsed autologous dendritic cell. - RESULTS: Dendritic cells generated from monocytes from EBC-patients showed a significantly lower expression of the phenotype-associated antigens CD1a, CD83, CD80, CD86 and CD54 than the dendritic cells from healthy controls. T cell - proliferation in response to TT-pulsed autologous dendritic cells was significantly decreased when induced with dendritic cells from patients with early breast cancer, when compared to healthy controls. Morphologically, only dendritic cells from healthy women possessed prominent dendrites indicating maturity. - CONCLUSIONS: These findings indicate that dendritic cells generated from monocytes from patients with early breast cancer express an immature phenotype, exhibit immature morphology and show functional deficits when compared to the cells derived from healthy age-matched controls. Whether these findings offer a potential target for therapeutic interventions remains to be elucidated.
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