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Genome-wide Screen for miRNA Targets Using the MISSION Target ID Library
Published on: April 6, 2012
Malignancy-related mir-210, mir-373 and let-7 levels are affected in iron deficiency anemia
Ruveyda Sak1, Demircan Ozbalci2, Emine Guchan Alanoglu2
1City Hospital of Etlik, Department of Rheumatology.
Background:
Hypoxia is the hallmark of iron deficiency anemia (IDA) and in hypoxic environment, significant changes are observed in malignancy-related microRNAs (miRNA). Our aim is to examine whether there is any difference in the levels of miR-210, miR-373 and let-7, which are directly related to malignancies in patients with IDA.
Methods:
Thirty-five female patients with IDA between the ages of 18-65 and 10 healthy controls were included in the study. Patients who received oral iron therapy, who had inflammatory disease, and who were pregnant were excluded from the study. Student t Test was used for comparing variables with normal distribution in two independent groups, and Mann-Whitney U Test was used for variables without normal distribution. Comparison of categorical data was made using the chi-square test.
Results:
The mean hemoglobin and ferritin level were 10,78±0,93 and 6.28±5,76 respectively. Plasma miR-210 expression were found as -7.27±2.23 and -6.15±0,88 in IDA and control group respectively (p = 0.022). Plasma miRNA-373 were -7.36±2,58 and -6,96±1,93 and let-7 expression were 2.14±2,15 and 3,57±2,21 in IDA and control group. (p = 0.65 and p = 0.20, respectively).
Conclusions:
Plasma miR-210 expression was significantly up-regulated and miR-373 and let-7 expression was down-regulated, though insignificantly, in IDA group.
Insights
Iron deficiency anemia (IDA) is linked to hypoxia, affecting malignancy-related microRNAs (miRNAs). This study found elevated miR-210 and decreased miR-373 and let-7 in IDA patients, suggesting altered miRNA profiles in anemia.
Area of Science:
- Biochemistry
- Molecular Biology
- Hematology
Background:
- Hypoxia is a key feature of iron deficiency anemia (IDA).
- Malignancy-related microRNAs (miRNAs) show altered expression in hypoxic conditions.
- Investigating specific miRNAs (miR-210, miR-373, let-7) in IDA is crucial.
Purpose of the Study:
- To determine differences in plasma levels of miR-210, miR-373, and let-7 in patients with IDA compared to healthy controls.
- To explore the relationship between these malignancy-associated miRNAs and the hypoxic state in IDA.
Main Methods:
- A case-control study involving 35 female IDA patients and 10 healthy controls.
- Exclusion criteria included oral iron therapy, inflammatory disease, and pregnancy.
- Statistical analysis employed Student t-test, Mann-Whitney U test, and chi-square test.
Main Results:
- Plasma miR-210 expression was significantly higher in the IDA group (p=0.022).
- Plasma miR-373 and let-7 expression showed a non-significant down-regulation in IDA patients.
- Mean hemoglobin and ferritin levels in IDA patients were 10.78±0.93 g/dL and 6.28±5.76 ng/mL, respectively.
Conclusions:
- Plasma miR-210 is significantly up-regulated in patients with iron deficiency anemia.
- miR-373 and let-7 expression are down-regulated, though not significantly, in IDA.
- These findings indicate altered miRNA expression patterns in IDA, potentially linked to hypoxia and malignancy risk.
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