期刊
LEUKEMIA & LYMPHOMA
卷 50, 期 3, 页码 341-348出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/10428190902756107
关键词
MDS; leukemia; prognosis; point mutations; molecular markers
资金
- Austrian Science Fund (FWF) [P 20920] Funding Source: researchfish
Myelodysplastic syndromes (MDS) are a heterogeneous group of myeloid neoplasms defined by morphologic dysplasia, peripheral cytopenia and clonal instability with enhanced risk of transformation into acute myeloid leukemia. The prognosis and clinical picture in MDS vary depending on patient-related factors (age, gender, comorbidity), the disease variant, cell types affected and genes involved in the malignant process. In fact, more and more data suggest that cytogenetic and molecular defects and gene variants are associated with the clinical course and prognosis in MDS. Although certain molecular defects are indicative of distinct cytogenetic abnormalities, others represent point mutations in critical target genes (RUNX1, N-RAS, JAK2, KIT, others) and sometimes are associated with a particular type of MDS, an overlap disease, a co-existing hematopoietic neoplasm or disease progression. Although most are somatic mutations, germ line mutations and gene polymorphisms have also been described in MDS. Some of these mutations may influence the natural course of disease, iron accumulation or disease progression. The present article provides a summary of our current knowledge about molecular and genetic markers in MDS, with special reference to their potential prognostic and therapeutic implications.
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