Nurhilal Büyükkurt, Guner Hayri Özsan, Sermin Özkal, Gülşah Seydaoğlu, İnci Alacacıoğlu, Mehmet Ali Özcan, Fatih Demirkan, Özden Pişkin, Bülent Ündar

Kemik iliği fibrozis ve anjiogenezisinin hematopoetik kök hücre engraftmanı üzerine etkisi

Amaç: Birçok faktör hematopoetik kök hücre (HKH) engraftmanını etkiler. Bu çalışmada hematolojik kanseri olan hastalarda kemik iliğindeki myelofibrozis ve anjiogenezisin engraftman üzerine etkisi araştırılmıştır.Gereç ve Yöntem: Otolog kök hücre nakli yapılan 34 hasta (20 erkek, 14 kadın) verileri değerlendirildi. Nakilden önceki son kemik iliğindeki fibrozis 0-3 arasında derecelendirildi, anjiogenezis stereolojik metod ile ölçüldü. Hastalar anjiogenezis parametrelerinin yoğunluğuna göre de iki gruba ayrıldı.Bulgular: Hastaların çoğunluğu (%73.5) multipl myelom idi ve yarısında fibrozis saptandı. On bir hasta derece 1, 6 hasta derece 2 fibrozise sahipti. Trombosit ve eritrosit engraftman günleri açısından derece 2 fibrozisi olan grupla fibrozis saptanmayan grup arasında istatistiksel anlamlı farklılık vardı. Derece 1 ve 2 fibrozis gruplarında fibrozisi olmayanlara göre VSD ve NVES düzeyleri anlamlı olarak yüksekti. Toplam yaşam derece 2 fibrozisi olan grupta daha düşük olmakla birlikte istatistiksel anlamlılık yoktu.Sonuç: Kemik iliği myelofibrozisinin bağımsız bir risk faktörü olduğu saptanmıştır. Bunun toplam yaşamı etkilemeden otolog nakil sürecinde trombosit ve eritrosit engraftmanı üzerine negatif etkisi olabilir. Fibrozisin derecesi ile doğru orantılı olarak artmış anjiogenezis arasındaki ilişkiyi açıklamak için ileri çalışmalar gereklidir.

Anahtar Kelimeler:

Kemik iliği fibrozisi, anjiogenezis, otolog transplantasyon, multipl myelom

Effects of bone marrow fibrosis and angiogenetic structure on autologous hematopoietic stem cell engraftment

Purpose: Hematopoietic stem cell (HSC) engraftment is influenced by many factors. We investigated the effects of bone marrow fibrosis and angiogenetic structure on engraftment in patients with hematological malignancies. Materials and Methods: Data were collected from 34 patients (20 males and 14 females) who underwent autologous HSC transplantation. Bone marrow myelofibrosis was graded from 0 to 3, angiogenesis was quantified using a stereological method in the most recent bone marrow biopsy before the transplantation. Patients were categorized into two groups according to intensity of angiogenesis parameters. Results: Half of the patients had fibrosis and majority had multiple myeloma (73.5%). Eleven patients had grade 1, six had grade 2 myelofibrosis. The engraftment day (ED) for platelets and erythrocytes was significantly different between the grade 2 fibrosis and non-fibrosis groups. VSD and NVES levels were significantly higher in the grades 1 and 2 fibrosis groups than the no fibrosis group. While the overall survival time was shorter in the grade 2 fibrosis group than the others, the difference was not statistically significant.Conclusion: Bone marrow fibrosis was found to be independent risk factor. It may have a negative effect on platelet and erythrocyte engraftment time of autologous transplantation process but this effect does not influence survival.

Keywords:

Bone marrow fibrosis, angiogenesis, autologous transplantation, multiple myeloma,

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