Table 1 The dysregulated circRNAs in osteoporosis.

From: Circular RNAs in osteoporosis: expression, functions and roles

Gene symbol (circBase ID)

Function on osteoporosis

Expression

Downstream genes

PMID

CDR1as (hsa_circ_0001946)

Inhibition

Upregulated during the osteogenic differentiation

miR-7/GDF5

30170617

CDK8 (hsa_circ_0003489)

Represses the osteogenic differentiation of PDLSCs

Increased in periodontitis tissues

/

32978798

SIPA1L1 (hsa_circ_0102538)

Promote osteogenic differentiation

Down expressed in SCAPs during the osteogenic differentiation

miR-204-5p/ALPL

33138854

Hmbox1 (hsa_circ_0083821)

Inhibit RANKL-induced osteoclasts differentiation

Reduced in TNF-α-induced osteoclast formation

miR-1247-5p/Bcl6

33425899

CSNK1G3 (hsa_circ_0127780)

Promotion

Upregulation

miR‐335/ Dkk‐1

30046991

YAP1 (hsa_circ_0024093)

Facilitate osteoblast differentiation in BMSC and MC3T3-E1 cells

Increased during differentiation of BMSC and MC3T3-E1 cells

miR-376b-3p/YAP1

32768931

circ_28313

Promotion

Upregulation

/

31204558

Dbf4 (mmu_circ_0001314)

Promote osteoclastogenesis

Increased during osteoclast differentiation

miR-5107/ TRAF6

32744684

ZNF720 (mmu_circ_0007059)

Circ_0007059 overexpression attenuated hBMSC differentiation into osteoclasts in vitro

Upregulated in patients with PM

miR-378/BMP2

33200464

circ_33287

Promote the osteogenic differentiation of MSMSCS

Upregulated during the osteogenic differentiation of MSMSCS

/

30551425

DNAH14 (hsa_circ_0016624)

Prevent osteoporosis

Downregulated in osteoporosis

miR-98/BMP2

31235259

MIDN (hsa_circ_0048211)

Alleviate the progression of PMOP

Downregulated in hBMSCs isolated from PMOP patients

miR-93-5p/BMP2

32329818

RUNX2 (hsa_circ_0076690)

Promote osteogenic differentiation

Decreased in osteoporosis patients

miR152/RUNX2

32717724

ZCCHC17 (hsa_circ_0011269)

Inhibit osteoporosis

Increased during osteogenic differentiation

miR-122/RUNX2

32619044

DYNC1H1 (hsa_circ_0002060)

Could be used as a potential diagnostic biomarker and therapeutic target in osteoporosis

Upregulated in osteoporosis patients

/

31056800

PRIM2 (hsa_circ_0076906)

Relieved osteoporosis

Circ_0076906 silencing inhibited osteogenesis-related genes in hMSCs.

miR-1305/OGN

32087327

PLCL2 (hsa_circ_0001275)

Potential diagnostic biomarker for PMOP

Upregulated in PMOP patients

/

29742503

circ_SLC8A1

Inhibition

Reduced in osteoporosis

miR-516b-5p/AKAP2

32830397

SLC4A7 (hsa_circ_0006215)

Overexpression of hsa_circ_0006215 promotes the osteogenic differentiation of BMSCs.

Downregulated in BMSCs from patients with OP

miR-942-5p/RUNX2, VEGF

33819188

SMARCA5 (hsa_circ_0001445)

A novel biomarker for osteoporosis

Much lower in OPO patients compared with healthy controls

/

33140658

RPL41 (hsa_circ_0026827)

Promote osteoblast differentiation of DPSCs

Increased during osteoblast differentiation

miR-188-3p/Beclin1, RUNX1

32671065

ENC1 (hsa_circ_0006859)

Suppress osteoblastic differentiation

Upregulated in osteoporosis patients

miR-431-5p/ROCK1

33648601

Tssc1 (mmu_circ_0003865)

Inhibit osteoporosis

Decreased by MEL treatment

miR-3653-3p/ GAS1

33632317

CD44 (hsa_circ_0021739)

Inhibited the differentiation of osteoclasts

Downregulated in patients with postmenopausal osteoporosis

miR-502-5p

33875631

REV1 (hsa_circ_0001052)

  

miR-124-3p

33884524

  1. The main functions and expressions of circRNAs in osteoporosis are listed in this table. Besides, we collect and list downstream genes according to the mechanisms authors studied in articles.