What are the dangers of biological therapy discontinuation or dose reduction strategies when treating rheumatoid arthritis?

Treatment with biological DMARDs (bDMARDs) has meant that remission or low disease activity (LDA) is now a realistic goal for patients with rheumatoid arthritis (RA). However, as in the case of all long-term therapies, potential side-effects give rise to concern. The main reasons for withdrawing or tapering bDMARDs are safety and the sustainability of national healthcare systems.

Heterogeneity of mesenchymal stromal cells in lymphoproliferative disorders.

Accumulating evidence indicates that bone marrow microenvironment plays an important role in the pathogenesis of some myeloid and lymphoid hematological malignancies (HM). Among different environmental associated parameters, those related to functional, cytogenetic and immunological integrity of mesenchymal stromal cells (MSC) are particularly relevant. Functional alterations and immunophenotypic abnormalities have been described in MSC obtained from HM patients.