Table 1 The role of miRNAs in IPF.

From: Emerging roles of noncoding RNAs in idiopathic pulmonary fibrosis

Function

miRNA

Experimental model

Target of action

Status in IPF

Effect on IPF or pathway associated

Reference

−

Let-7d

Mice/A549,FLF, NHLF, HFF-1

HMGA2 ER

Down-regulated

EMT and fibrotic markers by activation of TGFβ1/Smad3

[67]

[72]

[73]

−

miR-200

BLM fibrosis mice model

and LPS early pulmonary

fibrosis mouse model

TGF-β1

ZEB1/2

Down-regulated

TGF-β1-induced EMT of AECs

[70]

[71]

+

miR-143-5p miR-342-5p

IPF fibroblasts and AECII

FASN

ACSL-4

Up-regulated

TGFβ1/Smad3 pathway, ATII cell injury and senescence.

[76]

−

let-7

BLM fibrosis mice model

Sp3

Down-regulated

declined ferroptosis and improvement by Sp3/HDAC2/Nrf2 signaling pathway

[77]

 

LOX1

Down-regulated

remits pulmonary fibrosis through regulating ROS, mtDNA damage, and NLRP3 inflammasome activation.

[78]

−

miR-29c

BLM fibrosis mice model and AEC2s of patients with IPF

Foxo3a

Down-regulated

Epithelial Cell Renewal and Apoptosis

[79]

 

BLM fibrosis mice model

Fas

Down-regulated

ECM and the sensitivity to apoptosis in lung fibroblasts

[98]

−

miR-29b

Lung tissues of patients with IPF and BLM fibrosis mice model

TRIOBP

Down-regulated

EMT and lung fibroblast activation via TRIOBP/TRIO

[80]

−

miR-15a

BLM fibrosis mice model

YAP1

Down-regulated

fibroblast proliferation, migration, and collagen via YAP1/Twist

[82]

−

miR-338-3p

Lung tissues of patients with IPF and BLM fibrosis mice model

PTEN

Down-regulated

myofibroblast differentiation and matrix protein production via TGF-β/PTEN

[83]

−

miR-340-5p

NHLF-TGFβind

FNTATF1

Down-regulated

TGFβ/P38/ATF1 pathway

[84]

+

miR-301a

HFLT, HFLF-TGFβind and LF of BLM fibrosis mice model

TSC1

Up-regulated

Activation of TSC1/mTOR pathway

[85]

+

miR-21

BLM fibrosis mice model and HELF-TGFβind

Smad 7

Up-regulated

EMT and TGFβ/Smad pathway activation

[86]

+

miR-182-5p

BLM fibrosis mice model and HELF-TGFβind

Smad 7

Up-regulated

pro-fibrotic markers by pSmad2, pSmad3 and TGFβ pathway activation

[87]

−

miR-133a

NHLF-TGFβind

COL1A1

CTGF

α-SMA

TGFβR1

Up-regulated

TGF-β1-induced expression of classic myofibroblast differentiation markers

[90]

+

miR-124

LR-MSCs-TGFβind

AXIN1

Up-regulated

TGF-β1 induced differentiation of LR-MSCs to myofibroblast via Wnt signaling pathway

[91]

+

miR-424

NHLF-TGFβind and HFLF

SLIT2

Up-regulated

myofibroblast differentiation by TGFβ1 pathway

[92]

−

miR-17-5p

BLM fibrosis mice model

Thbs2

Down-regulated

Downstream fibrosis-related proteins

[94]

−

miR-34a

BLM fibrosis mice model

−

Down-regulated

diminished senescent phenotype and enhanced resistance to apoptosis

[95]

 

FLIP

Down-regulated

myofibroblast resistance to T-cell initiated cell death and accumulation

[97]

+

miR-146a

Macrophages

IL-1R/TLRs-NF-κB axis, JAK-STAT signaling pathway

Up-regulated

M1 polarization ↓and M2 polarization ↑ , leading to fibrosis

[99]

+

miR-33

Macrophages

AMPK PGC-1α SIRT3

Up-regulated

mitochondrial homeostasis and augmentation of autophagy

[101]