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Marius Mihai Harpa, Ionela Movileanu, Leslie Neil Sierad, Ovidiu Simion Cotoi, Horatiu Suciu, Carmen Sircuta, Terezia Preda, Dan Nistor, Klara Branzaniuc, Radu Deac, Michael Dandel, Simona Gurzu, Lucian Harceaga, Peter Olah, Agneta Simionescu and Dan Simionescu

valves with tissue-engineered grafts. Tissue Eng Part A. 2013 Aug;19(15-16):1686-94. DOI: 10.1089/ten.tea.2012.0074 7. Tedder ME, Simionescu A, Chen J, Liao J, Simionescu DT. Assembly and testing of stem cell-seeded layered collagen constructs for heart valve tissue engineering. Tissue Eng Part A. 2011 Jan;17(1-2):25-36. DOI: 10.1089/ten.tea.2010.0138 8. Ku CH, Johnson PH, Batten P, Sarathchandra P, Chambers RC, Taylor PM, et al. Collagen synthesis by mesenchymal stem cells and aortic valve interstitial cells in response to mechanical stretch. Cardiovasc

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Sebastian Giebel, Sylwia Oborska, Joanna Romejko-Jarosinska, Jarosław Dybko, Joanna Mańko, Joanna Sawczuk-Chabin, Agata Szymańska, Wojciech Legieć, Anna Czyż, Magdalena Maruszak, Maria Saduś-Wojciechowska, Joanna Drozd-Sokołowska, Paweł Steckiewicz, Anna Ejduk, Ewa Paszkiewicz-Kozik, Tomasz Ogórka, Michał Osowiecki, Łukasz Targoński and Michał Taszner

Background Autologous hematopoietic stem cell transplantation (autoHSCT) is widely applied for the treatment of patients with lymphoid malignancies [ 1 , 2 ]. Standard indications include multiple myeloma (MM), Hodgkin lymphoma (HL) and non-Hodgkin lymphoma (NHL). While in MM autoHSCT is used as consolidation of first line treatment, for most of lymphoma subtypes it is considered after failure of initial chemotherapy. Currently, autoHSCT procedures are almost exclusively performed using peripheral blood as a source of stem cells, which requires successful

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Ondine Lucaciu, Dan Gheban, Olga Soriţau, Mihaela Băciuţ, Radu Septimiu Câmpian and Grigore Băciuţ

-9612(00)00102-2 4. Shastri P. Future of Regenerative Medicine: Challenges and Hurdles. Artificial Organs. 2006;30(10):828-34. DOI: 10.1111/j.1525-1594.2006.00307.x 5. Polini A, Pisignano D, Parodi M, Quarto R, Scaglione S. Osteoinduction of human mesenchymal stem cells by bioactive composite scaffolds without supplemental osteogenic growth factors. PLoS One. 2011;6(10):e26211. doi:10.1371/journal.pone.0026211 DOI: 10.1371/journal.pone.0026211 6. Firoozabadi R, Morsher S, Engelke K, Prevrhal S, Fierlinger A, Miclau T 3rd, Genant HK. Qualitative and

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Mihaela Cîrstea, Adriana Coliță, Bogdan Ionescu, Didona Vasilache, Camelia Dobrea, Cerasela Jardan and Mihaela Dragomir

Cytogenetic Nomenclature. Basel, Switzerland: 2013: 78-79. 20. Kekre N, Ho VT. Allogeneic hematopoietic stem cell transplantation for myelofibrosis and chronic myelomonocytic leukemia. Am J Hematol. 2015 Nov;91(1):123-30. DOI: 10.1002/ajh.24215. 21. Symeonidis A, van Biezen A, de Wreede L, Piciocchi A, Finke J, Beelen D, et al. Achievement of complete remission predicts outcome of allogeneic haematopoietic stem cell transplantation in patients with chronic myelomonocytic leukaemia. A study of the chronic malignancies working party of the

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Peter J. Späth

.jaci.2013.08.032 42. Takahashi K, Yamanaka S. Induction of pluripotent stem cells from mouse embryonic and adult fibroblast cultures by defined factors. Cell. 2006 Aug 25;126(4):663-76. DOI: 10.1016/j.cell.2006.07.024 43. Takahashi K, Tanabe K, Ohnuki M, Narita M, Ichisaka T, Tomoda K, et al. Induction of pluripotent stem cells from adult human fibroblasts by defined factors. Cell. 2007 Nov 30;131(5):861-72. DOI: 10.1016/j. cell.2007.11.019 44. Pessach IM, Ordovas-Montanes J, Zhang SY, Casanova JL, Giliani S, Gennery AR, et

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Suleimman Al-Sweedan, Mona Alassiri, Ghaida Aljamal, Rafat Jafri, Amal Alseraihy and Khawar Siddiqui

Introduction Myelodysplastic syndromes (MDS) are a heterogeneous group of clonal stem cell disorders, characterized by ineffective hematopoiesis, a variable degree of cytopenia, and an increased risk for developing acute myelogenous leukemia (AML) [1]. MDS with ≥ 2% blasts in PB or ≥ 5% but less than 20% blasts in the BM is classified as MDS-EB in the most recent WHO classification of myeloid neoplasms [ 2 ]. The variant MDS-EB in transformation (MDS-EB-t) is retained in the pediatric classification of MDS, [ 3 ] and is characterized by a PB or BM blast

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Marius Harpa, Ionela Movileanu, Leslie Sierad, Ovidiu Cotoi, Horațiu Suciu, Terezia Preda, Dan Nistor, Carmen Sircuța, Klara Brânzaniuc, Radu Deac, Simona Gurzu, Lucian Harceaga, Peter Olah, Dan Simionescu, Michael Dandel and Agneta Simionescu

Valve Scaffolds Obtained by Complete Decellularization of Porcine Aortic Roots in a Novel Differential Pressure Gradient Perfusion System. Tissue Eng Part C Methods. 2015 Dec;21(12):1284-96. DOI: 10.1089/ten.tec.2015.0170. 6. Gimble J, Guilak F. Adipose-derived adult stem cells: isolation, characterization, and differentiation potential. Cytotherapy. 2003;5(5):362-9. DOI: 10.1080/14653240310003026. 7. Schoen FJ. Heart valve tissue engineering: quo vadis? Curr Opin Biotechnol. 2011 Oct;22(5):698-705. DOI: 10.1016/j.copbio.2011

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Mihaela Cîrstea, Adriana Coliță, Bogdan Ionescu, Alexandra Ghiaur, Didona Vasilescu, Camelia Dobrea, Cerasela Jardan, Mihaela Dragomir, Anca Gheorghe, Zsofia Várady and Anca Roxana Lupu

Abstract

In the 2016 revision of the World Health Organization classification the term therapy-related myeloid neoplasia (t-MN) defines a subgroup of acute myeloid leukemia (AML) comprising patients who develop myelodysplastic syndrome (MDS-t) or acute myeloid leukemia (AML-t) after treatment with cytotoxic and/or radiation therapy for various malignancies or autoimmune disorders. We report the case of a 36 year old patient with t-MN (t-MDS) after achieving complete remission (CR) of a PML-RARA positive acute promyelocytic leukemia (APL) at 32 months after diagnosis. Initially classified as low risk APL and treated according to the AIDA protocol - induction and 3 consolidation cycles - the patient achieved a complete molecular response in September 2013 and started maintenance therapy. On follow-up PML-RARA transcript remained negative. In January 2016 leukopenia and thrombocytopenia developed and a peripheral blood smear revealed hypogranular and agranular neutrophils. Immunophenotyping in the bone marrow aspirate identified undifferentiated blast cells that did not express cytoplasmic myeloperoxidase. The cytogenetic study showed normal karyotype. The molecular biology tests not identified PMLRARA transcript. A diagnosis of t-MDS (AREB-2 - WHO 2008) was established. Treatment of AML was started with 2 “3+7” regimens and 1 MEC cycle. Two months from diagnosis, while in CR, an allogeneic HSCT from an unrelated HLA compatible donor was performed after myeloablative regimen. An unfavorable clinical evolution was followed by death on day 9 after transplantation. The occurrence of t-MNs during CR of APL represents a particular problem in terms of follow-up and differential diagnosis of relapse and constitutes a dramatic complication for a disease with a favorable prognosis.

This work was supported by the grants PN 41-087 /PN2-099 from the Romanian Ministry of Research and Technology

Open access

Adelina Munteanu, Marilena Gilca, Gheorghita Isvoranu, Mihaela Surcel, Laura Ceafalan and Gina Manda

cell therapy in a porcine acute myocardial infarction model induces cardiac hypertrophy, mediated by paracrine secretion of cardiotrophic factors including TGFbeta1. Stem Cells Dev. 2008;17(5):941-51. DOI: 10.1089/scd.2007.0214. 6. Jujo K, Ii M, Losordo DW. Endothelial progenitor cells in neovascularization of infarcted myocardium. J Mol Cell Cardiol. 2008;45(4):530-44. DOI: 10.1016/j. yjmcc.2008.08.003. 7. Freyman T, Polin G, Osman H, Crary J, Lu M, Cheng L, et al. A quantitative, randomized study evaluating three methods of

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Zahra Heidari, Ali Moghtaderi, Hamidreza Mahmoudzadeh-Sagheb and Enam Alhagh Charkhat Gorgich

neurons in non‐Alzheimer dementia patients. Acta neurologica scandinavica. 2004;109(2):132-9. DOI: 10.1034/j.1600-0404.2003.00182.x 39. Joelving F, Billeskov R, Christensen J, West M, Pakkenberg B. Hippocampal neuron and glial cell numbers in Parkinson’s disease-a stereological study. Hippocampus. 2006;16(10):826-33. DOI: 10.1002/hipo.20212 40. Jubault T, Brambati SM, Degroot C, Kullmann B, Strafella AP, Lafontaine A-L, et al. Regional brain stem atrophy in idiopathic Parkinson’s disease detected by anatomical MRI. PloS one. 2009;4(12):e