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2015 ; 17
(6
): 669-78
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English Wikipedia
Aberrant Levels of miRNAs in Bone Marrow Microenvironment and Peripheral Blood of
Myeloma Patients and Disease Progression
#MMPMID26433312
Wang W
; Corrigan-Cummins M
; Barber EA
; Saleh LM
; Zingone A
; Ghafoor A
; Costello R
; Zhang Y
; Kurlander RJ
; Korde N
; Roccaro AM
; Ghobrial IM
; Landgren O
; Calvo KR
J Mol Diagn
2015[Nov]; 17
(6
): 669-78
PMID26433312
show ga
The bone marrow (BM) microenvironment of multiple myeloma (MM) is reported to
play a role in the biology of disease. In this study, we found that the
extracellular BM microenvironment in MM contains a unique miRNA signature
detectable by miRNA microarray and quantitative real-time PCR, which is partially
represented in the peripheral blood. Eleven miRNAs were significantly decreased
in both BM and serum of MM patients in comparison with controls. Evaluation of
these miRNAs in plasma of a separate cohort of MM patients and controls confirmed
significantly aberrant levels of let-7a, let-7b, let-7i, miR-15b, miR-16, and
miR-20a in both serum and plasma. We then studied the myeloma precursor diseases
and found that a subset of the MM miRNAs exhibited aberrant expression in
monoclonal gammopathy of undetermined significance and smoldering myeloma. miRNA
analysis of enriched CD138(+) plasma cells from MM and monoclonal gammopathy of
undetermined significance found that most of the validated MM BM signature miRNAs
were significantly decreased in MM plasma cells. Gene expression profiling
indicated that multiple targets of the decreased miRNAs found increased
expression in MM plasma cells, including ATF2, HRAS, HDAC4, TGFB1, TGFBR1, and
mitogen-activated protein kinases. The findings suggest that these miRNAs are
detectable in aberrant levels in the peripheral blood of patients with plasma
cell proliferation and may play a role in aberrant plasma cell proliferation and
disease progression.
|Adult
[MESH]
|Aged
[MESH]
|Aged, 80 and over
[MESH]
|Bone Marrow/*metabolism
[MESH]
|Cell Proliferation/genetics
[MESH]
|Disease Progression
[MESH]
|Female
[MESH]
|Gene Expression Profiling/methods
[MESH]
|Humans
[MESH]
|Male
[MESH]
|MicroRNAs/*genetics
[MESH]
|Middle Aged
[MESH]
|Monoclonal Gammopathy of Undetermined Significance/genetics
[MESH]