Effect of Vinblastine and Vincristine on Normal Mouse Bone-Marrow Cells and LA Leukemic Cells in vitro

Author(s):  
J. L. Chertkov ◽  
Nina L. Samoylina
2011 ◽  
Vol 106 (08) ◽  
pp. 337-343 ◽  
Author(s):  
Jianhui Wang ◽  
Zanhua Yi ◽  
Shiyang Wang ◽  
Zongdong Li

SummaryThrombocytopenia is a common feature of myelodysplastic syndromes (MDS). 5-aza-2’-deoxycytidine (decitabine) has been used to treat MDS with an approximately 20% response rate in thrombocytopenia. However, the mechanism of how decitabine increases platelet count is not clear. In this study, we investigated the effect of decitabine on megakaryocyte maturation and platelet release in the mouse. The effect of decitabine on megakaryocyte maturation was studied in an in vitro megakaryocyte differentiation model utilising mouse bone marrow cells and mouse megakaryoblastic cell line L8057. Decitabine (2.5 μM) is able to induce L8057 cells to differentiate into a megakaryocyte-like polyploidy cells with positive markers of acetylcholinesterase and αIIb integrin (CD41). Higher expression of αIIb integrin was also found in primary mouse bone marrow cells and human cord blood CD34+ cells cultured with both thrombopoietin and decitabine as compared to thrombopoietin alone. In addition, we noted a 30% platelet count increase in Balb/c mice 12 hours after the injection of decitabine at a clinically relevant dose (15 mg/m2), suggesting a rapid platelet release from the spleen or bone marrow. Our data suggest that decitabine increases platelet counts by enhancing platelet release and megakaryocyte maturation.


1994 ◽  
Vol 29 (3) ◽  
pp. 631-634 ◽  
Author(s):  
Masako Nose ◽  
Yoshiro Aoki ◽  
Yoshiko Kawase ◽  
Gen Suzuki ◽  
Makoto Akashi ◽  
...  

Blood ◽  
1959 ◽  
Vol 14 (9) ◽  
pp. 1040-1046 ◽  
Author(s):  
IRWIN BERMAN ◽  
HENRY S. KAPLAN

Abstract The cultivation of normal mouse bone marrow cells in diffusion chambers implanted into the peritoneal cavity of mice has been described. Mouse bone marrow cells cultivated by this method continue to undergo differentiation and maintain their morphologic identity for a considerable time.


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