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Efficacy of allogeneic mesenchymal stem cell transplantation in patients with drug-resistant polymyositis and dermatomyositis.

AbstractOBJECTIVE:
To assess the safety and clinical efficacy of allogeneic mesenchymal stem cell transplantation (MSCT) in a small-scale pilot study with 10 patients with drug-resistant polymyositis (PM) or dermatomyositis (DM).
METHODS:
A single-arm trial involving 10 patients with DM/PM who were either refractory to standard treatment, or had severe systemic involvement. All patients consented and underwent allogeneic MSCT. Clinical and laboratory manifestations were compared before and after MSCT.
RESULTS:
Improvements were seen in serum creatine kinase (CK), CK-MB, patient global assessment by visual analogue scale and muscle strength by manual muscle test in all patients, as well as improvement in interstitial lung disease in selected patients. Improvement in chronic non-healing skin ulcers was noted in one patient. Clinical responses were also seen in patients undergoing a second MSCT for recurrence of disease.
CONCLUSION:
MSCT appears safe and effective in drug-resistant patients with DM/PM. Larger-scale studies including a control group receiving standard treatment are needed to assess the long-term efficacy of allogeneic MSCT in refractory patients with DM/PM.
AuthorsDandan Wang, Huayong Zhang, Mengshu Cao, Yu Tang, Jun Liang, Xuebing Feng, Hong Wang, Bingzhu Hua, Bujun Liu, Lingyun Sun
JournalAnnals of the rheumatic diseases (Ann Rheum Dis) Vol. 70 Issue 7 Pg. 1285-8 (Jul 2011) ISSN: 1468-2060 [Electronic] England
PMID21622775 (Publication Type: Evaluation Study, Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Biomarkers
  • Creatine Kinase
  • Creatine Kinase, MB Form
Topics
  • Adult
  • Biomarkers (blood)
  • Creatine Kinase (blood)
  • Creatine Kinase, MB Form (blood)
  • Dermatomyositis (drug therapy, physiopathology, therapy)
  • Drug Resistance
  • Female
  • Follow-Up Studies
  • Humans
  • Male
  • Mesenchymal Stem Cell Transplantation (adverse effects, methods)
  • Muscle Strength
  • Pilot Projects
  • Polymyositis (drug therapy, physiopathology, therapy)
  • Treatment Outcome
  • Young Adult

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