Comparative Analysis of Iron Metabolism and Its Adjustment Changes at Cancer Patients in Childhood (original) (raw)
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Acta biochimica Polonica, 2002
Patients with colorectal carcinoma showed statistically significant lower values of transferrin saturation, total iron binding capacity and serum iron level as compared with control group, while the level of ferritin and the size of labile iron pool in carcinoma patients were higher, although this difference was not statistically significant. Our observations are in favour of the hypothesis which suggests that changes in iron metabolism restrict iron availability for tumour cells and as consequence, slow their growth.
International Journal of Pharmaceutical Research
Hepcidin levels increased significantly with increased of iron stores in early phase of acute leukemia patients when erithropoisis pressed by blast cells in bone marrow, then decreased significantly with acute leukemia remission. The study aimed to determine role of hepcidin in activity of erythropoisis and serum iron reserves in acute lymphoblastic leukemia (ALL) patients during phase of therapy. This study used an observational analytic design. Serum hepcidin examination used ELISA methods. Erythropoisis activity was determined by complete blood and reticulocyte percentage. Iron reserves was determined by serum iron and ferritin levels by ECLIA. Result shows a total of 48 patient subjects were divided into groups of induction, consolidation and maintenance phase with an average age of 6.81 years (induction), 9.7 years (consolidation) and 7.8 years (maintenance). In the normality test with Shapiro-Wilk data showed abnormal distribution (p <0.05). Analysis by the Kruskal-Wallis test showed there were differences between the three treatment phases in the examination of hemoglobin, reticulocytes, serum iron, ferritin and hepcidin (p <0.05). In statistical analysis with Spearman's rank correlation shows there is a significant correlation between hemoglobin with ferritin (r =-0.416, p = 0.003), hemoglobin with hepcidin (r =-0.305, p = 0.035), reticulocytes with hepcidin (r =-0.496), p = 0.000) and serum iron with hepcidin (r =-0.302, p = 0.037). We concluded that the higher levels of hepcidin indicate lower levels of hemoglobin, reticulocytes and serum iron in patients with acute lymphoblastic leukemia during treatment phase.
Role of dietary iron revisited: in metabolism, ferroptosis and pathophysiology of cancer
American Journal of Cancer Research, 2022
Iron is the most abundant metal in the human body. No independent life forms on earth can survive without iron. However, excess iron is closely associated with carcinogenesis by increasing oxidative stress via its catalytic activity to generate hydroxyl radicals. Therefore, it is speculated that iron might play a dual role in cells, by both stimulating cell growth and causing cell death. Dietary iron is absorbed by the intestinal enterocytes in the form of ferrous ion which forms cLIP. Excess iron stored in the form of Ferritin serves as a reservoir under iron depletion conditions. Ferroptosis, is an iron-dependent non-mutational form of cell death process and is suppressed by ironbinding compounds such as deferoxamine. Blocking transferrin-mediated iron import or recycling of iron-containing storage proteins (i.e., ferritin) also attenuates ferroptosis, consistent with the iron-dependent nature of this process. Unsurprisingly, ferroptosis also plays a role in the development of cancer and maybe a beneficial strategy for anticancer treatment. Different lines of evidence suggest that ferroptosis plays a crucial role in the suppression of tumorigenesis. In this review, we have discussed the pros and cons of iron accumulation, utilization and, its role in cell proliferation, ferroptosis and pathophysiology of cancer.
Role of iron metabolism in breast cancer patients
Iron metabolism is closely related to carcinogenesis. In this study, iron, ferritin and TIBC were analysed in 30 patients of early stage, 30 of advanced stage breast carcinoma before and after treatment and the results were compared with 30 healthy controls. The levels of all the three parameters were found to be significantly higher in breast cancer patients as compared to healthy controls and patients with advanced disease showed greater values as compared to early stage disease. These levels decreased after treatment and the difference was more significant in patients with complete response. Serum analyses of iron, ferritin and TIBC may help in assessing the severity and prognosis of the disease.
Iron metabolism and iron supplementation in cancer patients
Wiener klinische Wochenschrift, 2015
Iron deficiency and iron deficiency-associated anemia are common complications in cancer patients. Most iron deficient cancer patients present with functional iron deficiency (FID), a status with adequate storage iron, but insufficient iron supply for erythroblasts and other iron dependent tissues. FID is the consequence of the cancer-associated cytokine release, while in absolute iron deficiency iron stores are depleted resulting in similar but often more severe symptoms of insufficient iron supply. Here we present a short review on the epidemiology, pathophysiology, diagnosis, clinical symptoms, and treatment of iron deficiency in cancer patients. Special emphasis is given to intravenous iron supplementation and on the benefits and limitations of different
Iron nutrition and tumor growth: decreased tumor growth in iron-deficient mice
PubMed, 1988
Groups of 15 mice of three different laboratory strains (BALB/c, C3H/He, DBA/2) were fed on a low iron diet (5 mg iron/kg diet), and three similar groups of 15 mice were maintained on a normal iron diet (312 mg iron/kg diet). When the low iron diet group became iron deficient, tumor cells (5 x 10(5) cells/mouse) of CA07-A (colon adenocarcinoma), HE129 (hepatoma), and M119 (mammary adenocarcinoma) were inoculated s.c. in BALB/c, C3H/He, and DBA/2 mice, respectively. All mice developed tumors, tumors grew more slowly, and the mean tumor sizes were smaller in the low iron diet group at nearly all weekly observations in all three strains of mice. No apparent differences in the behavior, activity (e.g., movement, climbing, running, grooming, etc.), and appearance were observed between low iron diet and normal iron diet mice. The mean body weight of mice at transplantation was less in the low iron than in the normal iron groups for the BALB/c strain but higher in the low iron groups of C3H/He and DBA/2 mice, indicating that food intake of mice on a low iron diet was not impaired. These results suggest that iron nutrition of the host affects tumor growth; tumor cells grow better in an iron-rich environment. This knowledge should be considered when designing treatment for patients with cancer. Iron oversupply in cancer patients might enhance tumor growth and adversely affect cancer therapy.
Systemic and tumor level iron regulation in men with colorectal cancer: a case control study
Nutrition & Metabolism, 2014
Background: Increased cellular iron exposure is associated with colorectal cancer (CRC) risk. Hepcidin, a liver peptide hormone, acts as the primary regulator of systemic iron status by blocking iron release from enterocytes into plasma. Concentrations are decreased during low iron status and increased during inflammation. The role of hepcidin and the factors influencing its regulation in CRC remains largely unknown. This study explored systemic and tumor level iron regulation in men with CRC.
Acta bio-medica : Atenei Parmensis, 2018
Patients with hematologic malignancies undergoing chemotherapy and requiring blood transfusion usually have an elevated serum ferritin. These findings have led to the suggestion that iron overload is common and may have deleterious effects in these patients. However, the relationship between serum ferritin and parenchymal iron overload in such patients is unknown. Therefore, we measured the liver iron content (LIC) by the FerriScan® method and investigated the liver function and some endocrine tests in 27 patients with acute leukemia (AL) or myelodysplastic syndromes (MDS). Using FerriScan® method, the normal mean LIC levels are: 4.3 ± 2.9 mg Fe/g dry weight (d.w.). In our patients, the mean serum ferritin level was 1965 ± 2428 ng/mL. In our patients, the mean total iron in the blood received by them was 7177 ± 5009 mg. In 6 out of 27 patients LIC was > 7 mg Fe/g d.w. and in 11/27 serum ferritin was > 1000 ng/ml. Measuring fasting blood glucose revealed 3/27 with diabetes mell...