Using flow cytometry, we evaluated peripheral blood leucocyte subsets in 84 patients with primary and secondary liver cancer. The patients had significantly lower absolute (659+/-386 vs. 906+/-360 cells per microl, p=0.004) numbers of CD3+ CD4+, relative (9+/-5 vs. 12+/-4%, p=0.02) and absolute (154+/-115 vs. 221+/-83 cells per microl, p=0.02) numbers of CD8+ CD28+, absolute numbers of CD3+ and relative and absolute numbers of CD19+. Relative and absolute numbers of CD3+ DR+, CD3+ CD69+ and CD14+ CD16+ cells were significantly elevated in patients compared to controls. The phenotype was similar in 54 patients exposed to chemotherapy compared to 30 untreated patients. Urinary neopterin, a marker of systemic immune activation, was significantly higher in patients with liver tumours compared to controls. A negative correlation was observed between urinary neopterin and the absolute numbers of CD3+ CD4+ (Spearman rank correlation coefficient, rs = -0.54, p<0.0025) and CD19+ (rs = -0.49, p<0.01) in untreated patients. We conclude that, independently of prior chemotherapy, patients with liver present with markedly decreased numbers of CD3+ CD4+ lymphocytes as well as with other abnormalities of peripheral blood leukocyte phenotype. Similar to patients with human immunodeficiency virus infection, the decrease in CD3+ CD4+ lymphocytes is associated with systemic immune activation.
Many cell populations are thought to be involved in the etiopathogenesis of bronchial asthma. We examined by flow cytometry the relative and absolute number of CD3+, CD4+, CD8+, alpha beta TcR+ or gamma delta TcR+ T cells, CD19+ B cells; and CD56+ natural killer (NK) cells in the peripheral blood of 26 adult patients with difficult-to-control asthma (DCA) and 22 patients with minimally symptomatic asthma (MSA). Statistically higher relative and absolute numbers of NK cells (18.39 +/- 10.67% and 0.38 +/- 0.17 x 10(9)/l) in comparison with healthy controls (11.77 +/- 8.06% and 0.25 +/- 0.19 x 10(9)/l) and significantly decreased relative and absolute numbers of gamma delta T cells (3.02 +/- 2.16% and 0.06 +/- 0.04 x 10(9)/l) in comparison with controls (5.65 +/- 2.90% and 0.13 +/- 0.08 x 10(9)/l) in the DCA patient group were found. After pooling of data from both MSA and DCA patients and dividing the patients according to the presence of allergy, the relative and absolute numbers of gamma delta T cells were found to be diminished in both the allergy (3.77 +/- 2.98 and 0.07 +/- 0.05 x 10(9)/l) and nonallergy (3.06 +/- 1.78% and 0.06 +/- 0.03 x 10(9)/l) groups in comparison with healthy controls. The reason for the low number of gamma delta T cells in the peripheral blood of patients suffering from bronchial asthma is under investigation.
Background: Ascitic tumor-infiltrating lymphocytes (TIL) are a potential source of effectors for adoptive immunotherapy. Patients and Methods: The TIL phenotype was examined by two-color flow cytometry in malignancy-related ascites of 49 patients with different primaries. Interleukin-10 (IL-10) and neopterin were determined in ascitic fluid by enzyme-linked immunoassay. Results: Malignant melanoma patients had significantly higher CD3+, CD3+CD8+ and CD3+CD95+, and lower CD3+CD4+ lymphocyte numbers than patients with other primaries. Ovarian cancer patients had higher CD3+CD45RO+, CD8+CD28+, CD19+CD86+, CD19+ and CD19+CD86+ lymphocyte numbers, and lower NK cell numbers than patients with gastrointestinal and pancreatic primaries. Pretreated patients had significantly lower concentrations of IL-10, lower CD8+CD28+, CD3+CD45RA+, and higher CD3+CD80+ numbers than chemotherapy-naïve patients. Patients with hepatic metastases had lower CD3+, CD3+CD4+ and CD3+CD45RO+, and higher CD3+CD25+ and NK cell numbers than patients without liver metastases. A substantial number of cells exhibited dendritic cell phenotype. Significant correlations were observed between neopterin and IL-10 concentrations, and numbers of CD8+CD28+ and CD3+CD80+ lymphocytes. Conclusions: Some parameters of TIL phenotype differ depending on primary, previous treatment, or the presence of liver metastases. A negative correlation was observed between IL-10 and neopterin, and an opposing effect of local concentrations of IL-10 and neopterin on the numbers of CD8+CD28+ and CD3+CD80+ was noted.
Presence of functional immune system is critical for any attempt aimed at improving survival of breast cancer patients by strategies based on immune system manipulation. We evaluated by flow cytometry the phenotype of peripheral blood leukocyte of 43 breast cancer patients. In 11 patients, the phenotype was evaluated before and during the chemotherapy by combination of doxorubicin and paclitaxel (AT). Compared with controls breast cancer patients had significantly higher relative and absolute numbers of CD3 HLA-DR+, CD3+CD69+ and CD14+CD16+, and significantly lower percentages of CD3 and CD8+CD28+ cells. After one cycle of AT, the absolute numbers of CD3 , CD3+CD4+, CD3+CD8+ and CD8+CD28+ cells increased significantly. Present data show a presence of T-cell activation in breast cancer patients. Administration of AT may lead to an increase in functional T-cells in peripheral blood, indicating a potential for combining chemotherapy with immunotherapy in the treatment of breast cancer patients.
HAI is a technically feasible way of regional delivery of a high number of activated leukocytes obtained after short ex vivo activation.
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