Prenatal Exposure Effects on Osteoarthritis Susceptibility

Osteoarthritis is increasingly recognised not only as a disorder of ageing joints but also as a condition programmed by events during fetal development. Prenatal exposure to various environmental and pharmacological agents can disrupt normal cartilage formation, endochondral ossification and joint tissue homeostasis, leading to a heightened vulnerability to osteoarthritis in adult life. Mechanistic studies in animal models reveal that maternal intake of corticosteroids, caffeine or ethanol alters signalling pathways essential for chondrocyte proliferation and differentiation, often through dysregulation of growth factors, extracellular matrix components and non-coding RNAs. These intrauterine insults frequently result in low birth weight, impaired cartilage matrix synthesis and altered bone shape, which combine to accelerate cartilage degradation under mechanical stress later in life. Human epidemiological analyses similarly link markers of early growth retardation, such as preterm birth and low birth weight, with an elevated lifetime risk of hip and knee osteoarthritis. Together, these findings underscore a developmental origin for joint degeneration and suggest that optimising maternal health and prenatal exposures may offer novel preventive strategies against osteoarthritis.

Research from Nature Portfolio

Two seminal investigations have provided foundational evidence for prenatal programming of osteoarthritis. One study demonstrated that maternal caffeine intake at levels comparable to human consumption leads to cholesterol accumulation in offspring cartilage, accompanied by suppressed insulin-like growth factor-1 signalling and impaired extracellular matrix synthesis. Adult rats exposed in utero exhibited poor cartilage quality when challenged with a high-fat diet, indicating that cholesterol dysregulation during joint development predisposes to later degeneration. A parallel study showed that prenatal ethanol exposure induces intrauterine growth retardation and a persistently low-functioning IGF-1 pathway in female offspring. These animals developed accelerated cartilage destruction and higher osteoarthritis scores following mechanical stress, emphasising the critical role of growth factor programming during fetal joint formation.

Prenatal Exposure Effects on Osteoarthritis Susceptibility publication trend

The graph below shows the total number of articles in prenatal exposure effects on osteoarthritis susceptibility across all publications each year (not limited to Nature Index journals).

Technical terms

Intrauterine growth retardation (IUGR): Impaired fetal growth leading to low birth weight and altered organ development.

Chondrogenesis: The process by which mesenchymal cells differentiate into chondrocytes to form cartilage.

Endochondral ossification: A mode of bone development in which cartilage is progressively replaced by bone tissue.

Insulin-like growth factor-1 (IGF-1) signalling: A pathway critical for chondrocyte proliferation, differentiation and cartilage matrix production.

circRNA (circular RNA): A covalently closed non-coding RNA molecule that can regulate gene expression by interacting with proteins or other RNAs.

References

1. Circular RNA Gtdc1 Protects Against Offspring Osteoarthritis Induced by Prenatal Prednisone Exposure by Regulating SRSF1‐Fn1 Signaling. Advanced Science (2024).
2. Prenatal caffeine exposure induces a poor quality of articular cartilage in male adult offspring rats via cholesterol accumulation in cartilage. Scientific Reports (2015).
3. Prenatal ethanol exposure increases osteoarthritis susceptibility in female rat offspring by programming a low-functioning IGF-1 signaling pathway. Scientific Reports (2015).
4. Could low birth weight and preterm birth be associated with significant burden of hip osteoarthritis? A systematic review. Arthritis Research & Therapy (2018).