PMCC PMCC

Search tips
Search criteria

Advanced
Results 1-2 (2)
 

Clipboard (0)
None

Select a Filter Below

Journals
Year of Publication
Document Types
1.  Design and application of a novel PNA probe for the detection at single cell level of JAK2V617F mutation in Myeloproliferative Neoplasms 
BMC Cancer  2013;13:348.
Background
Mutation(s) of the JAK2 gene (V617F) has been described in a significant proportion of Philadelphia negative Myeloproliferative Neoplasms (MPN) patients and its detection is now a cornerstone in the diagnostic algorithm.
Methods
We developed a novel assay based on peptide nucleic acid (PNA) technology coupled to immuno-fluorescence microscopy (PNA-FISH) for the specific detection at a single cell level of JAK2-mutation thus improving both the diagnostic resolution and the study of clonal prevalence.
Results
Using this assay we found a percentage of mutated CD34+ cells ranging from 40% to 100% in Polycythemia Vera patients, from 15% to 80% in Essential Thrombocythemia and from 25% to 100% in Primary Myelofibrosis. This method allows to distinguish, with a high degree of specificity, at single cell level, between CD34+ progenitor stem cells harbouring the mutated or the wild type form of JAK2 in NPM patients.
Conclusions
This method allows to identify multiple gene abnormalities which will be of paramount relevance to understand the pathophysiology and the evolution of any type of cancer.
doi:10.1186/1471-2407-13-348
PMCID: PMC3728119  PMID: 23865766
JAK2; Myeloproliferative neoplasms; PNA
2.  Quality of life and physicians' perception in myelodysplastic syndromes 
To detect factors associated with quality of life (QOL) of patients with myelodysplastic syndrome (MDS) and to compare the MDS patients’ self-assessed QOL with that perceived by their physicians. In an observational, non-interventional, prospective, multicentre study, QOL was evaluated in 148 patients with newly diagnosed low- and intermediate-risk IPSS MDS. QOL measures (QOL-E v.2, LASA and EQ-5D) and patient-related candidate determinants of QOL were assessed for up to 18 months. Patients' QOL scores were compared with those obtained by appointed hematologists’ assessment and with ECOG performance status (PS). Fatigue was not prevalent at diagnosis, though physical QOL and energy levels were low. Transfusion-dependent patients had worse QOL scores. In multivariate analysis, Hb levels and comorbidities were a major determinant of QOL. Physicians’ perception of patients’ well-being correlated with patients’ QOL. Physicians underestimated the impact of disturbances on patients’ QOL, mainly in the MDS-specific components. ECOG PS did not discriminate patients according to QOL status. In conclusion, the association of anemia with QOL is confirmed, while co-morbidities emerge as an independent predictor of QOL in MDS. Fatigue is not a major concern. ECOG PS is not a valuable surrogate of patient’s QOL, thus highlighting that physician’s judgment of patient’s well-being must not substitute patient-reported outcomes. Appropriate questionnaires should be used to assess MDS patients’ QOL in order to improve communication and therapeutic choice.
PMCID: PMC3384400  PMID: 22762033
Myelodysplastic syndromes; quality of life; comorbidities; anemia; transfusion-dependence; patient-reported outcomes

Results 1-2 (2)