PREDICTIVE SIGNIFICANCE OF BIOCHEMICAL MARKERS OF SALIVA IN PATIENTS WITH LUNG CANCER COMBINED WITH COPD

Author(s):  
L Bel'skaya

A complex of salivary biochemical parameters, which have prognostic value in lung cancer, was revealed. Therefore, for the group of patients without COPD, these indicators include imidazole compounds and LDH, with mild COPD - only imidazole compounds, with moderate COPD - pH and LDH. This is the first time that such prognostic results were obtained using saliva.

2020 ◽  
Vol 3 (3) ◽  
pp. e00133
Author(s):  
L.V. Bel’skaya ◽  
V.K. Kosenok

The aim of this work was to determine the potential prognostic role of the biochemical parameters of saliva in lung cancer. The study included 425 patients with lung cancer of various histological types. Saliva samples were collected before treatment and 34 biochemical parameters were determined. Prognostic factors were analyzed by multivariate analysis using Cox’s proportional hazard model. Results have shown that for squamous cell carcinoma, LDH activity below 1748 U/L was an independent prognostically unfavorable factor (HR = 2.89; 95% CI 1.28 – 6.46; р = 0.00330). For adenocarcinoma, there was a combination of factors: the content of imidazole compounds above 0.311 mmol/L, seromucoids below 0.098 c.u. and uric acid less than 83 nmol/mL (HR = 7.91; 95% CI 2.52 – 24.11; р = 0.00004). For neuroendocrine lung cancer, an unfavorable prognosis was associated with the urea content below 8 mmol/L, NO below 24 nmol/mL and ALP activity below 74 E/L (HR = 12.50; 95% CI 1.09 – 138.7; р = 0.01184). For radical surgery, an unfavorable prognosis was associated with LDH activity below 545 U/L (HR = 7.20; 95% CI 2.13 – 23.70; p = 0.00968), for combined treatment, with the NO level below 15 nmol/mL (HR = 5.64; 95% CI 1.89 – 16.46; p = 0.02797). The worst prognosis for palliative treatment was observed at the NO level below 24 nmol/mL and the imidazole compound content above 0.311 mmol/L (HR = 2.73; 95% CI 1.07 – 12.92; р = 0.01827). The identified parameters can be used to predict lung cancer and personalized patient’s treatment.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jianyu Wang ◽  
Doudou Liu ◽  
Zhiwei Sun ◽  
Ting Ye ◽  
Jingyuan Li ◽  
...  

AbstractIt has been postulated that cancer stem cells (CSCs) are involved in all aspects of human cancer, although the mechanisms governing the regulation of CSC self-renewal in the cancer state remain poorly defined. In the literature, both the pro- and anti-oncogenic activities of autophagy have been demonstrated and are context-dependent. Mounting evidence has shown augmentation of CSC stemness by autophagy, yet mechanistic characterization and understanding are lacking. In the present study, by generating stable human lung CSC cell lines with the wild-type TP53 (A549), as well as cell lines in which TP53 was deleted (H1229), we show, for the first time, that autophagy augments the stemness of lung CSCs by degrading ubiquitinated p53. Furthermore, Zeb1 is required for TP53 regulation of CSC self-renewal. Moreover, TCGA data mining and analysis show that Atg5 and Zeb1 are poor prognostic markers of lung cancer. In summary, this study has elucidated a new CSC-based mechanism underlying the oncogenic activity of autophagy and the tumor suppressor activity of p53 in cancer, i.e., CSCs can exploit the autophagy-p53-Zeb1 axis for self-renewal, oncogenesis, and progression.


Lung Cancer ◽  
2004 ◽  
Vol 46 (1) ◽  
pp. 125-126
Author(s):  
Stefano Margaritora ◽  
Alfredo Cesario ◽  
Domenico Galetta ◽  
Venanzio Porziella ◽  
Silvia Sterzi ◽  
...  

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