scholarly journals Enhanced humoral immunity in breast cancer patients with high serum concentration of anti‐HER2 autoantibody

2021 ◽  
Author(s):  
Yasufumi Sato ◽  
Masafumi Shimoda ◽  
Yoshiaki Sota ◽  
Tomohiro Miyake ◽  
Tomonori Tanei ◽  
...  
2020 ◽  
pp. 1-10
Author(s):  
Maja Sirotković-Skerlev ◽  
Natalija Dedić Plavetić ◽  
Filip Sedlić ◽  
Sanja Kusačić Kuna ◽  
Damir Vrbanec ◽  
...  

BACKGROUND: Apoptosis inhibition is a major tumorigenic factor. Bcl-2 dysregulation and TP53 mutation status, which may correlate with autoantibody generation, contribute to impaired apoptosis. OBJECTIVE: This study aimed to investigate the prognostic value of circulating Bcl-2 and anti-p53 antibodies (p53Abs) in a 17.5-year follow-up of breast cancer patients. We also analyzed the correlations of Bcl-2 and p53Abs with various clinicopathological parameters in order to assess their impact on tumor aggressiveness. METHODS: Serum Bcl-2 and p53Abs levels were analyzed by the enzyme-linked immunosorbent assay (ELISA) in 82 patients with invasive breast cancer and twenty individuals without malignancy. RESULTS: Serum Bcl-2 and p53Abs levels in breast cancer patients were significantly higher than those in controls. Patients with high levels of Bcl-2 (cut-off 200 U/ml) had a poorer prognosis (17.5-year survival) than those with lower Bcl-2 values. In combined analysis the subgroup of patients with elevated p53Abs (cut-off 15 U/ml) and elevated Bcl-2 (cut-offs 124 U/ml and 200 U/ml) had the worse prognosis in 17.5-year survival. In correlation analysis p53Abs and Bcl-2 were associated with unfavorable clinicopathological parameters. CONCLUSIONS: Our results suggest that breast cancer patients with high serum levels of p53Abs and Bcl-2 present an especially unfavorable group in a long follow-up.


2018 ◽  
Vol 36 (5_suppl) ◽  
pp. 4-4
Author(s):  
Eva Zavadova ◽  
Jan Spacek ◽  
Michal Vocka ◽  
Bohuslav Konopasek ◽  
Lubos Petruzelka

4 Background: A growing body of evidence over the past few years suggests that the presence of immune elements within the tumor or in the tumor stroma has prognostic and predictive value in breast cancer. Immunotherapy is successfully used in many types of cancer, and modulation of immune system became standard part of the cancer patients treatment Responses in breast cancer have been more recently reported. However it has yet to be determined whether predictable biomarkers of response can be identified. Therefore in recent years, research focused on a precise description of the status and function of the immune system.The purpose of the study was to monitor immune responses in patients with breast cancer, particularly the examination of cellular (CD4, CD8, B cells) as well as humoral immunity (IgG, IgG1, IgG2, IgG3, IgG4. It appears that a factor contributing to the immunosupression may be a transforming factor-beta (TGF-beta).It is highly immunosuppressive factor that inhibits the natural and specific immunity against tumors. Methods: 50 patients included in the research project were implemented routine cancer treatment. Basic parameters (histological type and grade, the degree of expression of ER and PR, HER2, and the proliferative marker) were established. Patients were evaluated by a cancer clinical immunologist to exclude immune disorders, allergic or autoimmune origin. Anti-tumor cellular immunity (CD4, CD8, CD19) was measured by flow citometry, humoral immunity (IgG, IgG1, IgG2, IgG3, IgG4) was measured and TGF beta and VEGF production was monitored by ELISA. Results: In breast cancer patients mainly depression in cellular immunity was found. Immunglobuline plasma level was decreased as well (mainly IgG4 subtype). TGF beta as well as VEGF plasma level were increased. Most patients have shown clinical symptoms of immunodeficiency (frequent infections of respiratory or urinary tract, herpetic infections).Those patient could benefit from immunomodulation. Conclusions: The state of anticancer immunity could contribute to the selection of targeted immune therapy in breast cancer patients and to help to find optimal combination of immunotherapy. This project was supported by governmental grant AZV CR 15-28188A.


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e11091-e11091
Author(s):  
Xiaoming Xie ◽  
Yana Kong ◽  
Shuqin Dai ◽  
Wanli Liu ◽  
Weidong Wei

e11091 Background: Cytokeratin19-2G2, one of cytokeratin19 fragments, has been considered as one of the most sensitive tumor markers. However, no previous studies reported of CK19-2G2 in breast cancer. The purpose of our study is to evaluate the prognostic value of CK19-2G2 in primary breast cancer patients. Methods: This study included 249 primary breast cancer patients with stage 0-III, 81 healthy controls and 21 breast benign disease patients. Serum samples were conserved before surgery. CK19-2G2, CEA and CA153 were measured by chemiluminescent assay and ER, PR, CerbB2 were assessed by Immunohistochemistry assay. Results: Serum CK19-2G2 levels in breast cancer patients were significantly higher than that in healthy and benign controls (P < 0.001). High serum CK19-2G2 levels (≥2 ng/mL) were associated with stage III (P < 0.001), tumor size (≥2cm) (P < 0.001), lymph node involvement (P < 0.001), negative estrogen receptor (P = 0.005) and progesterone receptor status (P = 0.001). Multivariate analysis revealed that high serum CK19-2G2 level was an independent factor for relapse (P = 0.029) and death (P = 0.040) in primary breast cancer patients. Conclusions: High serum CK19-2G2 levels maybe considered as an independent indicator for prognosis in primary breast cancer.


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