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Objective:To explore the expression and detection significance of peripheral blood interferon-gamma (IFN-γ) and hepcidin-25 (Hepc-25) in primary gastric cancer combined with thalassemia minor.Methods:One hundred and fifty primary gastric cancer combined with thalassemia minor patients admitted to of Jiangsu Province Official Hospital from January 2017 to December 2019 were selected as the research group, and 150 cases of primary gastric cancer without thalassemia minor admitted in the same period were selected as the control group. The levels of peripheral blood IFN-γ and Hepc-25 in the two groups were determined by enzyme-linked immunosorbent assay, and the receiver operating characteristic curve (ROC) was used to evaluate the diagnostic sensitivity and specificity of peripheral blood IFN-γ and Hepc-25 on primary gastric cancer combined with thalassemia minor. The level of hemoglobin (Hb) was measured by the cyanmethemoglobin method, and the Pearson correlation analysis was used to analyzed the relationship among the peripheral blood IFN-γ, Hepc-25 and Hb levels in the research group.Results:The levels of peripheral blood IFN-γ and Hb in the research group were lower than those in the control group: (115.18 ± 27.05) ng/L vs. (137.17 ± 35.66) ng/L, (88.44 ± 10.71) g/L vs. (120.60 ± 29.46) g/L; the level of Hepc-25 in the research group was higher than that in the control group: (49.32 ± 15.05) μg/L vs. (32.66 ± 12.22) μg/L, and the differences were statistically significant ( P<0.05). There were no significant differences in the levels of peripheral blood IFN-γ, Hepc-25 and Hb between the patients with α-thalassemia and β-thalassemia ( P>0.05). The area under the curve (AUC) of thalassemia predicted by of peripheral blood IFN-γ level was 0.709.When the cut-off value was≤138.89 ng/L, its diagnostic sensitivity and specificity were 81.33% and 70.67% respectively, and when the serum AUC of Hepc-25 was 0.811 and cut-off value was ≥ 40.13 μg/L, its diagnostic sensitivity and specificity were 75.33% and 74.00% respectively. Pearson correlation analysis showed that in the research group IFN-γ and Hb had positive correlation ( r = 0.245, P<0.05), Hepc-25 and IFN-γ had negative correlation ( r = - 0.378, P<0.05); Hepc-25 and Hb had negative correlation ( r = - 0.647, P<0.05). Conclusions:The low level of IFN-γ and the high level of Hepc-25 in peripheral blood of patients with primary gastric cancer combined with thalassemia minor are related to Hb and have certain diagnostic value for thalassemia.
ABSTRACT
Hepcidin is the primary regulatory hormone responsible for lowering the iron content in the blood circulation. Due to its biodegradability and low cytotoxicity, hepcidin is considered as an alternative for iron chelators. The baculovirus expression system may be suitable for human hepcidin production because the expressed proteins generally exhibit proper folding, post-translational modifications, and oligomerization. Using data from two vector maps, pFastBac1 and pFastBac HTB, a unique vector was designed encoding human hepcidin-25 as fusion recombinant peptide. Expression analysis showed that it was expressed as a peptide with a molecular weight near to 5 kDa. After purification and TEV treatment, findings revealed that recombinant human hepcidin-25 was functional and its effect was dose dependent (P=0.001). It was concluded that baculovirus expression was a suitable expression system for production of functional recombinant human hepcidin-25.
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BACKGROUND: Hepcidin, a key regulator of iron homeostasis, is associated with iron metabolism imbalance in patients with chronic kidney disease (CKD). However, serum hepcidin level in anemic patients with CKD presents a contradictory picture. We investigated the relationship between serum hepcidin-25 level and iron parameters in patients with CKD. METHODS: We defined and categorized patients with CKD according to the Kidney Disease Outcomes Quality Initiative (KDOQI) guidelines. We analyzed the relationship between serum hepcidin-25 level and iron parameters [serum iron, total iron-binding capacity (TIBC), unbound iron-binding capacity (UIBC), transferrin saturation, and ferritin levels] according to the CKD stage and clinical and laboratory characteristics. RESULTS: Hb level, TIBC, and UIBC decreased and ferritin level increased (Ptrend0.05). CONCLUSIONS: Serum hepcidin-25 level was not found to be associated with iron parameters or clinical status of CKD patients in our study. Determination of hepcidin-25 levels may not provide more information than conventional iron parameters in monitoring iron metabolism in CKD patients. However, further studies are needed to establish the clinical utility of hepcidin measurement in CKD patients.
Subject(s)
Humans , Anemia , Ferritins , Hepcidins , Homeostasis , Iron , Kidney , Kidney Diseases , Metabolism , Renal Insufficiency, Chronic , TransferrinABSTRACT
Objective To study the dynamic changes of Hepcidin-25 in different disease process in patients with multiple myeloma (MM) and its relationship with therapeutic effect and prognosis.Methods The expression levels of Hepcidin-25 in 54 MM patients were analyzed by RT-PCR and ELISA.The correlations between dynamic changes of patients' Hepcidin-25 expression and clinical manifestations,clinical predictive value of the prognosis were researched.Results Expressions of Hepcidin-25 mRNA and protein in MM patients were significantly higher than those in normal control group [0.58±0.19 vs 0.08±0.027,P =0.001,(5.2±11.9) ng/ml vs (22.5±7.1) ng/ml,P =0.019].Hepcidin-25 expression of 17 patients remission after treatment was (26.4±7.3) ng/ml,it was significantly lower than that before treatment [(33.4±7.4) ng/ml,t =5.312,P =0.021].But the Hepcidin-25 level of the treatment ineffective patients (37 cases) significantly increased [(55.9±12.7) ng/ml vs (39.1±9.9) ng/ml,t =2.811,P =0.037].There existed obvious differences in survival curves of two groups (P ＜ 0.01).Hb level of patients remission after treatment was 124 g/L,and significantly higher than that before treatment (102 g/L,t =2.113,P =0.035).It had a negative correlation with Hepcidin-25 (r =-0.535,P =0.002).But the Hepcidin-25 level of the treatment ineffective patients significantly increased (46 g/L vs 73 g/L,t =2.730,P =0.036).It also had a negative correlation with Hepcidin-25 (r =-0.642,P =0.001).Conclusions Hepcidin-25 expression levels in patients with MM are high,and are closely related to anemia of chronic disease.High expression of Hepcidin-25 has a predictive value for clinical effect and prognosis.