Hematologic Recovery and Survival of Lymphoma Patients After Autologous Stem-Cell Transplantation: Comparison of Bone Marrow and Peripheral Blood Progenitor Cells

1996 ◽  
Vol 22 (5-6) ◽  
pp. 449-456 ◽  
Author(s):  
Pauline Brice ◽  
Jean Pierre Marolleau ◽  
Patricia Pautier ◽  
Jaafar Makke ◽  
Dominique Cazals ◽  
...  
2018 ◽  
Vol 8 (2) ◽  
pp. 177-180
Author(s):  
Mohammed Mosleh Uddin ◽  
Huque Mahfuz ◽  
Md Mostafil Karim

Haematopoietic stem cell transplantation (HSCT) involves the intravenous infusion of autologous or allogenic stem cells collected from bone marrow, peripheral blood or umbilical cord to re-establish haematopoietic function in patients whose bone marrow or immune system is damaged or defective. HSCT are mainly of two types –autologous stem cell transplantation (SCT) and allogenic SCT. Autologous SCT is mainly performed in multiple myeloma, Hodgkin lymphoma, non-Hodgkin lymphoma and less commonly in acute myeloid leukaemia. Haematopoietic stem cells are mobilized from bone marrow to the peripheral blood after the use of mobilizing agents, granulocyte colony stimulating factor (G-CSF) and plerixafor. Then the mobilized stem cells are collected from peripheral blood by apheresis and cryo-preserved. The patient is prepared by giving conditioning regimen (high dose melphelan). Stem cells, which are already collected, are re-infused into patient’s circulation by a blood transfusion set. Engraftment happens 7-14 days after auto SCT. Common side effects of this procedure include nausea, vomiting, diarrhoea, mucositis, infections etc. The first case of SCT performed in Combined Military Hospital, Dhaka, Bangladesh is presented here.Birdem Med J 2018; 8(2): 177-180


2001 ◽  
Vol 85 (02) ◽  
pp. 250-255 ◽  
Author(s):  
Muhit Ozcan ◽  
Colleen Morton ◽  
Anna Solovey ◽  
Luke Dandelet ◽  
Ronald Bach ◽  
...  

SummaryUsing a novel whole blood assay, we recently demonstrated that tissue factor procoagulant activity (TF PCA) is present in normal individuals. Preliminary experiments suggested that this activity is localized in the mononuclear cell fraction. Postulating that whole blood TF PCA would therefore be undetectable when monocytes and neutrophils are absent from peripheral blood, we assayed TF PCA during the peri-transplant period in 15 consecutive patients undergoing allogeneic (n = 12) or autologous (n = 3) bone marrow transplantation (BMT) or peripheral blood stem cell transplantation (PBSCT). Baseline (pre-transplant) mean TF PCA was higher in patients compared to normal controls (P <0.005). Unexpectedly, although TF PCA during the period of profound aplasia was significantly reduced compared to baseline (p <0.05), fully 55% of the initial activity remained detectable. During the engraftment phase, TF PCA returned to pre-transplant levels, with a linear correlation between monocyte counts and TF PCA (r = 0.63). In contrast to normal whole blood, incubation of aplastic samples with E. Coli lipopolysaccharide ex vivo failed to induce TF PCA. Throughout the period of study – but especially during the aplastic phase – the absolute number of circulating endothelial cells (CECs) that were TF antigen-positive was increased compared to normals (P <0.001). However, removal of these cells from whole blood samples failed to significantly diminish total TF PCA indicating that CECs alone could not account for the detectable TF PCA during aplasia. We conclude that neither circulating mature myelo-monocytic cells nor endothelial cells can account for all the functionally intact TF in peripheral blood. Further studies are needed to identify the other source(s) of TF PCA.


Sign in / Sign up

Export Citation Format

Share Document