Geiger Laboratiry Geiger Laboratiry
Therapy induced MDS (tMDS)

therapy induced MDS (tMDS)

Myelodysplastic syndrome (MDS) constitutes a complex set of hematopoietic stem cell diseases that involves defective differentiation into either one, some or all of the hematopoietic lineages. MDS is caused due to the accumulation of mutations in hematopoietic stem/progenitor cells (HSPCs). Therapy related MDS (t-MDS) is a secondary complication associated with prior chemo-radiation therapy for either cancer or non-cancer related diseases and accounts about 20% of the total MDS cases. Genes predisposing t-MDS in response to chemo-radiation therapy remain enigmatic. We combined a retroviral insertional mutagenesis approach with a radiation treatment regimen in the mouse in an attempt to identify novel t-MDS predisposing genes and signaling pathways.  We perform ligation-mediated PCR (LM-PCR) using retroviral long terminal repeats (LTR) sequence based primers and amplifying into the mouse genomic region to identify the unique insertion sites in the mouse genome. Further validating such genes or pathways in mice might facilitate the identification of novel genes that predispose to t-MDS/AML.
  Geiger Laboratory