The TMSB4 Pseudogene LncRNA Functions as a Competing Endogenous RNA to Promote Cartilage Degradation in Human Osteoarthritis

Liu Q, Hu X, Zhang X, Dai L, Duan X, Zhou C, Ao Y · Molecular Therapy

The thymosin β4 pseudogene transcript lncRNA-MSR was upregulated in damaged human OA cartilage and activated by mechanical strain, and it raised TMSB4 expression by sponging miR-152; blocking it protected against degradation, so the authors propose the Tβ4 axis as a therapeutic target to inhibit, not to supply.

Population

Damaged and intact cartilage from 50 patients; human chondrocytes under cyclic tensile strain

Intervention

None — expression profiling, plus lncRNA manipulation in chondrocytes

Comparator

Intact cartilage from the same joints

Limitations

Expression and cell-culture work; the therapeutic inference (inhibit the axis) has not been tested in a joint in vivo.