All content on this site is intended for healthcare professionals only. By acknowledging this message and accessing the information on this website you are confirming that you are a Healthcare Professional. If you are a patient or carer, please visit Know AML.
The aml Hub website uses a third-party service provided by Google that dynamically translates web content. Translations are machine generated, so may not be an exact or complete translation, and the aml Hub cannot guarantee the accuracy of translated content. The aml and its employees will not be liable for any direct, indirect, or consequential damages (even if foreseeable) resulting from use of the Google Translate feature. For further support with Google Translate, visit Google Translate Help.
The AML Hub is an independent medical education platform, sponsored by Daiichi Sankyo, Johnson & Johnson, and Syndax, and has been supported through an educational grant from the Hippocrate Conference Institute, an association of the Servier Group. The funders are allowed no direct influence on our content. The levels of sponsorship listed are reflective of the amount of funding given. View funders.
Now you can support HCPs in making informed decisions for their patients
Your contribution helps us continuously deliver expertly curated content to HCPs worldwide. You will also have the opportunity to make a content suggestion for consideration and receive updates on the impact contributions are making to our content.
Find out moreCreate an account and access these new features:
Bookmark content to read later
Select your specific areas of interest
View aml content recommended for you
MicroRNAs (miRNAs) are single stranded, small, non-coding RNAs which are known to play an important role in many biological processes and are detectable in serum and plasma samples. Aberrant expression of several miRNAs (miR-155, miR-210, miR-126-5p, miR-370, miR-328, and miR-204) have been associated with outcome in acute myeloid leukemia (AML).1-6 Recently, low serum expression of miR-223 has been implicated in the development of AML.7-9
Guopan Yu, Nanfang Hospital, Guangzhou, CN, and team compared serum levels of miR-223 in 131 patients with AML and 70 healthy controls who had no cancer symptoms or clinical signs of any other disease.10 RNA was extracted from serum and reverse transcribed prior to quantitative real time polymerase chain reaction (qPCR) being performed for both miR-223 and for a control miRNA that had been spiked into the sample at a known concentration during RNA purification.
Patients
(n= 131)
Low miR-223
(n= 69)
High miR-223
(n= 62)
p value
Cytogenetics
Favorable
Intermediate
Unfavorable
52
61
18
16
38
15
36
23
3
< 0.0001
Complete remission
Yes
No
55
76
20
49
35
27
0.0015
Blasts in bone marrow
< 50%
≥ 50%
54
77
21
48
33
29
0.0081
Guopan Yu and colleagues state that their work is in agreement with previous work on miR-223 in AML.7-9 miR-223 regulates the equilibrium between expansion and differentiation in hematopoietic stem and progenitor cells, and expression of miR-223 leads to the production of red blood cells, T cells and B cells. Expression of miR-223 inhibits cell proliferation and increases apoptosis in AML cell lines, and knocking down miR-223 increases the frequency of myeloid progenitors. The authors discussed how decreased expression of miR-223 seems to be associated with nasopharyngeal carcinoma, cervical cancer, gallbladder cancer, hepatocellular carcinoma, and breast cancer, yet increased expression is seen in gastric cancer, colon cancer, and non-small cell lung cancer.10 The group conclude that miR-223 may be able to be used as diagnostic tool and as a predictor of poor patient outcome in patients with AML.
References
Please indicate your level of agreement with the following statements:
The content was clear and easy to understand
The content addressed the learning objectives
The content was relevant to my practice
I will change my clinical practice as a result of this content
Your opinion matters
How important to you is the turnaround time for genetic testing in guiding your initial treatment decisions?