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Updated: Jan 31, 2026

Megakaryocyte Differentiation and Platelet Formation from Human Cord Blood-derived CD34+ Cells
Published on: December 27, 2017
Presence of CD34+ in Megakaryocytes in Association With p53 Expression Predicts Unfavorable Prognosis in Low-risk
Fernando Barroso Duarte1, Talyta Ellen DE Jesus Dos Santos2, Maritza Cavalcante Barbosa3
1Department of Surgery, Federal University of Ceará, Fortaleza, Brazil.
Background/Aim:
Although risk stratification using the Prognostic Scores Systems (IPSS, WPSS and IPSS-R) incorporate key information about prognosis of patients with Myelodysplastic syndromes (MDS), patients classified as low-risk may evolve rapidly and aggressively, despite a "favorable" prognostic stratification. The aim of this study was to identify biomarkers for predicting prognosis, and for better stratification and management of these patients.
Materials And Methods:
Expression of CD34 and p53 in megakaryocytes was examined by immunohistochemistry in 71 MDS patients classified as low-risk.
Results:
CD34 staining in megakaryocytes was associated with p53 expression (p=0.0166). CD34 and p53 expression were associated to worse overall survival in patients (p=0.0281).
Conclusion:
The presence of CD34 in megakaryocytes is associated with p53 expression and an adverse prognosis for MDS patients.
Insights
In Myelodysplastic Syndromes (MDS), CD34 expression in megakaryocytes indicates p53 expression and predicts a worse prognosis, even in low-risk patients. This finding aids in better risk stratification and management of MDS.
Area of Science:
- Hematology
- Oncology
- Cell Biology
Background:
- Myelodysplastic Syndromes (MDS) risk stratification using standard scores (IPSS, WPSS, IPSS-R) may not fully capture aggressive progression in low-risk patients.
- Identifying novel biomarkers is crucial for refining prognosis and management strategies in MDS.
Purpose of the Study:
- To identify biomarkers for predicting prognosis in Myelodysplastic Syndromes (MDS).
- To improve risk stratification and patient management for low-risk MDS.
Main Methods:
- Immunohistochemistry was used to examine CD34 and p53 expression in megakaryocytes.
- The study included 71 patients diagnosed with low-risk Myelodysplastic Syndromes (MDS).
Main Results:
- CD34 staining in megakaryocytes showed a significant association with p53 expression (p=0.0166).
- Both CD34 and p53 expression were significantly correlated with worse overall survival in MDS patients (p=0.0281).
Conclusions:
- The presence of CD34 in megakaryocytes is linked to p53 expression.
- CD34 expression in megakaryocytes serves as a marker for adverse prognosis in Myelodysplastic Syndromes (MDS) patients.
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