Osteoarthritis Treatment and Mechanisms

This study investigates the role of PGE2 in MSC chondrogenesis, showing it has chondroprotective effects despite being driven by prohypertrophic signals.

This study shows that transient cartilage-specific cell death in fetal mouse limbs is repaired through a two-step process involving delayed and then accelerated chondroprogenitor differentiation, with mTORC1 activation playing a key role in recovery.

This study investigates the role of ALK1/2/3 inhibition in mesenchymal stromal cell chondrogenesis, finding that BMP-ALK1/2/3 signaling is not a driver of hypertrophy and that PTHrP/hedgehog and WNT signaling are more critical in hypertrophic differentiation.

This study compares metabolomic profiles of healthy and osteoarthritic human cartilage to identify disease-associated metabolic endotypes and pathways.

This study examines how mechanical loading affects cartilage mechanoresponsiveness in healthy and osteoarthritic human cartilage, finding that loading rescues the chondrogenic phenotype in OA despite Wnt activation.

This paper develops a microfluidic model with localized oxygen control to study osteoblast-chondrocyte interactions in osteoarthritis, showing differential oxygen environments alter signaling pathways and collagen expression.

The paper designs a synthetic gene circuit to autonomously regulate RUNX2 activity during chondrogenesis, enhancing matrix synthesis and resisting ECM degradation.

This study shows that adding TTNPB and timed BMP2 to hPSC differentiation improves chondrogenesis, upregulating genes related to skeletal and cartilage development.

This study shows that CuHARS, a copper-containing nanomaterial, transforms human chondrocytes into cells with altered morphology, lower proliferation, and increased collagen secretion, while having less effect on fibroblasts.

The paper identifies Oncostatin M as a driver of inflammation in knee osteoarthritis using network-based cytokine inference and pharmacological manipulation in aged mice.

This study shows that basement membrane extract enhances endochondral ossification in bone marrow-derived mesenchymal stem cell-based cartilage organoids by altering gene expression and pathway activation.

This study identifies miR-199b-5p as a regulator of OA progression, showing its inhibition reduces pathological changes by targeting Fzd6 and Gcnt2.

The paper examines DNA methylation profiles in infrapatellar fat pad and blood from osteoarthritis patients, identifies mQTLs, and uses Mendelian randomization to explore disease mechanisms.

This study profiles transcriptional changes during early chondrogenic differentiation of human MSCs, identifying key regulatory processes starting within 2 hours of induction.

This study identifies corefucosylation of N-glycans as a regulator of cartilage resilience in osteoarthritis, showing its role in preventing degeneration.

This study differentiates WISP3-deficient and sufficient hPSCs into articular cartilage-like tissues, revealing transcriptomic and cellular differences linked to PPAC pathogenesis.

The paper examines nociceptor sprouting in four mouse models of knee OA, finding progressive neuroplasticity associated with joint damage across different stages of the disease.

This study investigates BMP signaling's role in osteoarthritis pathogenesis and shows that inhibiting BMP signaling can protect against or slow OA progression.

This study investigates the roles of Foxc1 and Foxc2 in limb development, showing they are critical for chondrocyte hypertrophy and mineralization in the primary ossification center.

This study shows that nutrient availability regulates chondroprogenitor accumulation and differentiation in the growth plate, with IGF-1 promoting differentiation after nutrient recovery.

The paper generates human articular and growth plate chondrocytes from stem cells, maps their regulatory networks, and identifies lineage-specific transcription factors.

This study examines the temporal transcriptomic changes during in vitro chondrogenesis using RNA sequencing and identifies key transcription factors involved in cartilage formation.

This study identifies genetic determinants of hip joint space width and finds they have opposing causal effects on hip osteoarthritis risk through distinct mechanisms.

This study identifies NFATc1 as a key regulator that negatively controls articular chondrocyte differentiation in mouse knee development.

This study investigates how TRPV4 mutations affect chondrocyte differentiation and identifies altered BMP signaling as a mechanism for skeletal dysplasia.

This study shows that reduced glycolysis in chondrocytes expands the resting zone of the growth plate through acetyl-CoA deficiency and epigenetic activation of FGFR3 signaling.

This study examines DNA methylation changes in human chondrocytes across ontogeny and develops an epigenetic clock showing STAT3 agonist reduces epigenetic age in aged chondrocytes.

This study profiles gene expression during chondrocyte differentiation in a high-density cell culture model to understand molecular pathways and compare in vitro models to in vivo cartilage formation.

Analysis of hand OA cartilage stratified by ALDH1A2 polymorphic variants reveals a targetable, anti-inflammatory role for retinoic acid in OA.