scholarly journals Peculiarities of arginase and NO-synthase pathways of L-arginine metabolism in peripheral blood lymphocytes of patients with ovarian cancer

2013 ◽  
Vol 85 (6) ◽  
pp. 105-113 ◽  
Author(s):  
O. I. Yakubets ◽  
◽  
R. V. Fafula ◽  
D. Z. Vorobets ◽  
Z. D. Vorobets ◽  
...  
1994 ◽  
Vol 9 (2) ◽  
pp. 115-120 ◽  
Author(s):  
B. Donnerstag ◽  
R.P. Baum ◽  
J.B. Oltrogge ◽  
A. Hertel ◽  
G. Hör

In the follow-up of ovarian cancer patients, rising levels of the tumor-associated antigen CA 125 are an indication for immunoscintigraphy. Human anti-mouse antibodies (HAMA) are frequently found after immunoscintigraphy with murine MAb directed against CA 125. Since we observed that patients developing high HAMA-levels in serum remained free of tumor or had stable disease, we examined the cytotoxic activity of peripheral blood lymphocytes (PBL) by a fluorescence-based assay. Our results demonstrate that PBLs of patients with high anti-idiotypic antibodies show an increased cytotoxic activity (by a factor of 4) compared to those of patients with low HAMA levels. The clinical course of the patients after the first injection of murine monoclonal antibody was observed over a period of 1 to 3 years. Improvement or deterioration of patients ‘ clinical condition corresponded with the results obtained by functional analysis. Further investigations concerning the course of cytotoxic activity in HAMA-positive patients will have to clarify HAMA's role in the immune response.


2021 ◽  
Vol 50 (1) ◽  
pp. 37-40
Author(s):  
R. V. Pavlov ◽  
V. A. Aksenenko ◽  
A. Yu. Krivoruchko ◽  
N. A. Pavlenko

In presence of autoserum, production of IL1b, IL2, IL4, IL6 and TNFa by peripheral blood lymphocytes of 30 patients with epithelial tumors of ovaries and 50 patients with epithelial ovarian cancer of I-IV stages was investigated. The data received enable to ascertain the increase of mononuclear activity during ovarian tumor progression, increase of T-helpers of the second type activity, along with the reduction of T-helpers of the first type activity in peripheral blood of patients, and abnormalities of IL6-dependent mechanism of control of ILIb and TNFa production by peripheral blood lymphocytes of patients with ovarian cancer.


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