| miRNA (miR) | Validated target(s) | Functions | Expression | Effect(s) | References |
| lncRNA-LINC00311 | DLL3 | Positive | Not mentioned | Promotes osteoclast proliferation and differentiation, shifts cell cycle distribution, and inhibits apoptosis | [101] | lncRNA-AK077216 | Not mentioned | Positive | Upregulated | Inhibits OCP apoptosis and promotes osteoclast differentiation, fusion, bone-resorbing activity, and actin ring formation | [98] | lncRNA-CRNDE | Not mentioned | Positive | Not mentioned | Promotes osteoclast proliferation and shifts cell cycle distribution | [113] | lncRNA-MAYA | Not mentioned | Positive | Not mentioned | Promotes osteoclast differentiation and bone-resorbing activity | [136] | lncRNA-MIRG | Not mentioned | Positive | Upregulated | MIRG inhibition decreases osteoclast differentiation and bone-resorbing activity | [83] | lncRNA-MALAT1 | Not mentioned | Positive | Not mentioned | EPC-derived exosomal MALAT1 promotes osteoclast differentiation and migration | [82] | lncRNA-DANCR | Not mentioned | Positive | Not mentioned | Knockdown of DANCR reduces the promotion effect of compression force on osteoclastogenesis | [104, 105] | lncRNA-TUG1 | Not mentioned | Positive | Not mentioned | Promotes osteoclast proliferation and inhibits osteoclast apoptosis | [112] | lncRNA-Jak3 | Not mentioned | Positive | Upregulated | Regulates the Jak3-NFATc1-CTSK axis; lncRNA-Jak3 knockdown inhibits osteoclast differentiation and bone-resorbing activity | [100] | circRNA_28313 | Not mentioned | Positive | Upregulated | circRNA_28313 knockdown inhibits osteoclastogenesis and actin ring formation | [29] | miR-21 | PDCD4, FasL | Positive | Upregulated | Downregulates PDCD4 and forms a c-Fos/miR-21/PDCD4 positive feedback loop and promotes osteoclast differentiation and bone-resorbing activity while inhibiting apoptosis | [23, 26, 78, 117, 163, 164, 185, 188–191] | miR-29 | NFI-A, CALCR, CDC42, SRGAP2, GPR85, CD93 | Positive | Upregulated | Promotes osteoclast differentiation, survival, and bone-resorbing activity | [78, 117, 129, 190, 191] | miR-214 | PTEN | Positive | Upregulated | Downregulates PTEN and regulates the PTEN-PI3K-AKT axis, promotes osteoclast activity, and mediates osteoclast-osteoblast intercellular crosstalk | [108, 109, 117, 190, 192] | miR-182 | PKR | Positive | Upregulated | Downregulates PKR, promotes osteoclast differentiation and bone-resorbing activity | [88, 115] | miR-183 | HO-1 | Positive | Upregulated | Downregulates HO-1, promotes osteoclastogenesis | [117, 118, 190] | miR-31 | RhoA | Positive | Upregulated | Negatively regulates RhoA expression at an appropriate level; miR-31 inhibition inhibits osteoclast formation, bone-resorbing activity, and actin ring formation | [78, 117, 139, 191] | miR-34c | LGR4 | Positive | Upregulated | Downregulates LGR4, promotes the formation of actin rings and TRAP-positive multinucleated cells | [97] | miR-148a | MAFB | Positive | Upregulated | Downregulates MAFB, promotes osteoclastogenesis | [78, 117, 123, 124, 190] | miR-9718 | PIAS3 | Positive | Unregulated | Downregulates PIAS3, promotes osteoclastogenesis | [117, 126, 127, 190] | miR-483-5p | IGF2 | Positive | Not mentioned | Downregulates IGF2, promotes osteoclast differentiation and survival | [71] | miR-506 | SIRT1 | Positive | Upregulated | Downregulates SIRT1; a miR-506 inhibitor suppresses osteoclastogenesis | [128] | miR-363-3p | PTEN | Positive | Upregulated | Targets PTEN to activate the PI3K/AKT signaling pathway, promotes osteoclastogenesis | [110] | miR-125a-5p | TNFRSF1B | Positive | Upregulated | Downregulates TNFRSF1B, promotes osteoclastogenesis, OCP proliferation, and growth, migration, and invasion of RAW264.7 cells | [66] | miR-142-5p | PTEN | Positive | Upregulated | Targets PTEN to activate the PI3K/AKT signaling pathway, promotes osteoclast differentiation and activity | [111] | miR-199a-5p | MAFB | Positive | Upregulated | Suppresses MAFB, promotes osteoclast differentiation | [125] | miR-145-5p | OPG | Positive | Not mentioned | Suppresses OPG, promotes osteoclastogenesis | [49] | miR-212 | IL-15, CX3CR1 | Positive | Upregulated | Downregulates IL-15; miR-212 inhibition impairs osteoclastogenesis | [33] | miR-132 | IRF1 | Positive | Upregulated | Downregulates IRF1; miR-132 inhibition impairs osteoclastogenesis | [33] | miR-99b | IGF1R | Positive | Upregulated | Downregulates IGF1R; miR-99b inhibition impairs osteoclastogenesis | [33] | miR-let-7e | TNFAIP3, ITGA4, THBS1 | Positive | Upregulated | Downregulates TNFAIP3, ITGA4, and THBS1; miR-let-7e inhibition impairs osteoclastogenesis | [33] | miR-146a-5p | Not mentioned | Positive | Not mentioned | miR-146a-5p knockdown impairs osteoclast differentiation and bone resorption | [172] | lncRNA-NONMMUT037835.2 | Not mentioned | Negative | Downregulated | Inhibits osteoclastogenesis | [40] | lncRNA-Bmncr | Not mentioned | Negative | Downregulated | Inhibits osteoclast differentiation and bone-resorbing activity | [171] | miR-218 | TNFR1, TLR4, MMP9 | Negative | Downregulated | Inhibits the p38MAPK-c-Fos-NFATc1 pathway, represses TNFR1, TLR4, and MMP9, inhibits osteoclastogenesis, cell migration, actin ring formation, and bone resorption | [58, 73, 86, 117, 158, 190] | miR-34a | Tgif2 | Negative | Downregulated | Downregulates Tgif2, inhibits osteoclast differentiation and bone-resorbing activity | [117, 120, 190, 191] | miR-155 | MITF, Socs1 | Negative | Downregulated | Downregulates MITF, PU.1, and Socs1, inhibits osteoclast fusion, differentiation, and bone-resorbing activity | [23, 31, 78, 89, 90, 190, 191] | miR-7b | DC-STAMP | Negative | Downregulated | Downregulates DC-STAMP, inhibits osteoclast differentiation and bone-resorbing activity | [117, 132] | miR-26a | CTGF | Negative | Upregulated | Downregulates CTGF; inhibits osteoclastogenesis, actin ring formation, and bone-resorbing activity | [117, 134, 190] | miR-124 | NFATc1, Rab27a, IL-11 | Negative | Downregulated | Downregulates NFATc1, Rab27a, and IL-11, inhibits the proliferation and motility of OCPs, and decreases osteoclast differentiation and activity | [37, 78, 80, 117, 166, 167, 190, 191] | miR-125a | TRAF6, TNFAIP3 | Negative/positive | Downregulated/upregulated | Inhibited by NFATc1; inhibits osteoclast differentiation and downregulates TRAF6; miR-125a inhibition suppresses osteoclastogenesis and upregulates TNFAIP3 | [33, 57, 78, 117, 190, 191] | miR-146a | TRAF6 | Negative | Downregulated/upregulated | Downregulates TRAF6, inhibits osteoclastogenesis | [56, 77, 78, 117, 190, 191, 193, 194] | miR-503 | RANK | Negative | Not mentioned | Downregulates RANK, inhibits osteoclast differentiation and bone-resorbing activity | [38, 78, 117, 190, 195] | miR-145 | Smad3 | Negative | Downregulated | Downregulates Smad3, inhibits osteoclast differentiation and bone-resorbing activity | [60] | miR-142-3p | PKCα | Negative | Downregulated | Downregulates PKCα, inhibits osteoclast clustering, fusion, differentiation, and survival | [141] | miR-222-3p | Potential: c-Src | Negative | Downregulated | Negatively regulates c-Src, inhibits osteoclast differentiation and bone-resorbing activity | [137] | miR-340 | MITF | Negative | Downregulated | Downregulates MITF, inhibits osteoclastogenesis | [121, 185] | miR-16-5p | Not mentioned | Negative | Downregulated | Inhibits osteoclastogenesis and disrupts the structure of F-actin rings | [170] | miR-126-5p | MMP13 | Negative | Not mentioned | Downregulates MMP13, inhibits osteoclast differentiation and bone-resorbing activity | [159, 160] | miR-17 | PTP, Vav3 (potential) | Negative | Not mentioned | miR17/PTP/EphA4 regulatory axis: decreased miR-17 upregulates PTP, PTP downregulates EphA4, which activates osteoclastogenesis; may downregulate Vav3 and thus inhibits osteoclast fusion | [140, 155, 196] | miR-141 | MITF, CALCR, EphA2 | Negative | Downregulated | Downregulates MITF, CALCR, and EphA2; inhibits osteoclast differentiation and activity | [52, 55] | miR-219 | MITF, TRAF6 | Negative | Downregulated | Downregulates MITF and TRAF6, inhibits osteoclast differentiation and activity | [55] | miR-190 | CALCR | Negative | Downregulated | Downregulates CALCR, inhibits osteoclast differentiation and activity | [55] | miR-23a | GSK3-β | Negative | Downregulated | Inhibits GSK3-β activation, inhibits osteoclast differentiation and activity | [95] | miR-1225 | Keap1 | Negative | Downregulated | Downregulates Keap1, inhibits osteoclast differentiation and activity | [119] | miR-100-5p | FGF21 | Negative | Downregulated | Downregulates FGF21, inhibits osteoclastogenesis | [50] | miR-27a | PPARγ, APC | Negative | Not mentioned | Downregulates PPARγ and APC, inhibits osteoclast differentiation and activity in physiologic condition and ovariectomized (OVX) mice | [84] | miR-618 | TLR4 | Negative | Downregulated | Inhibits osteoclastogenesis via the TLR4/MyD88/NF-κB signaling pathway | [73] | miR-30a | DC-STAMP | Negative | Downregulated | Downregulates DC-STAMP, inhibits osteoclast formation, differentiation, and activity | [133] | miR-144-3p | RANK | Negative | Downregulated | Downregulates RANK, inhibits osteoclast differentiation, formation, proliferation, and apoptosis | [39] | miR-9 | Cbl | Negative | Not mentioned | Downregulates Cbl, inhibits osteoclast survival and OCP migration | [153] | miR-181a | Cbl | Negative | Not mentioned | Downregulates Cbl, inhibits osteoclast survival and OCP migration | [153] | miR-29b | BMF | Negative/positive | Upregulated/downregulated | Downregulates BMF; knockdown impairs osteoclast migration, commitment, and formation; inhibits osteoclast differentiation and activity; enhances osteoclast survival | [122, 129, 147] | miR-378 | Not mentioned | Negative/positive | Upregulated | Overexpression and underexpression of miR-378 inhibit osteoclastogenesis | [55, 76–78] | miR-223 | NFI-A, IKKα (potential) | Negative/positive | Downregulated | Promotes osteoclastogenesis by regulating the relative expression of NFI-A and CSF1R, downregulates IKKα, and inhibits osteoclastogenesis | [25, 27, 64, 77, 78, 117, 148, 150, 190] | miR-133a | MITF, MMP14, CXCL11, CXCR3, SLC39A1 | Negative/positive | Upregulated | Downregulates MITF, MMP14, CXCL11, CXCR3, and SLC39A1; both positive and negative effects on osteoclastogenesis are reported | [55, 75, 78, 92, 117, 197] | miR-106b | RANKL | Negative/positive | Not mentioned | Downregulates RANKL, has different regulatory roles in CIA bone microenvironment and giant cell tumor of bone | [41, 43] | miR-422a | Potential: Cbl, CD226, IGF1, CBP, TOB2 | Positive | Upregulated | Unclear (probably inhibits those five inhibitors of osteoclastogenesis) | [47, 78, 117] | miR-338-3p | IKKβ, MAFB, RANKL | Negative/positive | Upregulated/downregulated | Downregulates IKKβ, MAFB, and RANKL; both positive and negative effects on osteoclastogenesis are reported | [42, 44, 62] |
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