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Omics · study · 2026

Mechanical stress suppressed miR-330 in the development of osteoarthritis and its protection from osteochondral degeneration

Listed in NCBI GEO

Abnormal mechanical stress plays a crucial role in the progression of osteoarthritis (OA).

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However, more key factors regulating mechanical response remain to be explored. This study harvested temporomandibular joint synovium fluids from 96 patients and revealed that miR-330 is significantly reduced under abnormal mechanical stress.

Similarly, the expression of miR-330 is also decreased in cartilage and subchondral bone tissue from clinical specimen and animal models. Global knock out of miR-330 aggravated osteoarthritis development in both temporomandibular joint and knee joint. Conditional knock out of miR-330 in either chondrocytes or osteoclasts exhibited similar phenotype in both mechanical instable and aging animal models, suggesting the importance of miR-330 in both types of cells.

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Further molecular mechanism exploration unveiled that miR-330 can regulate the catabolism of chondrocytes and osteoclasts via suppressing CTGF, FGFR1 and EPOR as well as key inflammatory cytokines such as IL-1β and TNF-α. More importantly, intra-articular supplement of miR-330 exerts a therapeutic effect by mitigating the detrimental impacts of abnormal mechanical stress, where inhibition of chondrocytes apoptosis, osteoclasts activation and inflammation were further confirmed via single-cell RNA sequencing analysis.

In conclusion, this study for the first time revealed that miR-330 is a mechanical responsive, osteoarthritis protective micro RNA. We provide evidence that miR-330 has potential diagnostic and therapeutic value for both temporomandibular and knee osteoarthritis.

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From keywords
Life Sciences
Inferred from text
RNA sequencing 75% · Sequencing 75% · Single-cell RNA sequencing 75%
Provenance · 1 source records, 10 field assertions
SourceKeyLast seenRaw
NCBI GEOGSE30709114 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NCBI GEOconnector:ncbi_geo@1.0.0
concepts[field].local:field:life-sciencesmapping · NCBI GEOconnector:ncbi_geo@1.0.0
concepts[method].geo_series_type:expression-profiling-by-high-throughput-sequencingsource · NCBI GEOconnector:ncbi_geo@1.0.0/gdstype
concepts[modality].local:modality:rna-seqenrichment · NCBI GEOkeyword-concept-rules@1.0.0title+description (75%)
concepts[modality].local:modality:sequencingenrichment · NCBI GEOkeyword-concept-rules@1.0.0title+description (75%)
concepts[modality].local:modality:single-cell-rna-seqenrichment · NCBI GEOkeyword-concept-rules@1.0.0title+description (75%)
concepts[organism].NCBITaxon:10116source · NCBI GEOconnector:ncbi_geo@1.0.0/taxon
descriptionsource · NCBI GEOconnector:ncbi_geo@1.0.0/summary
publication_datesource · NCBI GEOconnector:ncbi_geo@1.0.0
titlesource · NCBI GEOconnector:ncbi_geo@1.0.0/title