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EXPERIENCE OF THE NBTC IN THE PREPARATION OF AHSC GRAFT IN TUNISIA. PREPARED BY: NADRA GABSI LEILA BEN HAMED. M. MAAMER A. SKHIRI H. KAABI N. MOJAAT. F. JENHANI T. BEN OTHMEN S. HMIDA E. GOUIDER. Historical Overview. 1945: The bombings in Hiroshima and Nagasaki
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EXPERIENCE OF THE NBTC IN THE PREPARATION OF AHSC GRAFT IN TUNISIA PREPARED BY: NADRA GABSI LEILA BEN HAMED M. MAAMER A. SKHIRI H. KAABI N. MOJAAT F. JENHANI T. BEN OTHMEN S. HMIDA E. GOUIDER
Historical Overview • 1945:The bombings in Hiroshima and Nagasaki • 1950’sConcept of "stem cell" - First clinical trials (failures) • 1958:Pr. Jean DAUSSET - discovery of the HLA system • 1968:Robert A. Good -The first successful AHSCT • 1980’s:Widespread Clinical use of HSCs … • 1998:The first AHSCT in TUNISIA .. • 2010 : AHSCT the only cure for many hematopoietic disorders 2010
We report data of the NBTC in the preparation of the graft using manual handling over 12 years
Materials February 1998 – July 2010 • 474 patients total. • Donors: HLA-identical siblings 53% Males 47% Females Median age:21years (Range: 2 – 62 years)
DISEASES 55% 45% ACUTE LEUKEMIA APLASTIC ANEMIA (41%) (28%) (11%) (17%) MALIGNANT NON MALIGNANT
SOURCES OF HSCs BONE MARROW PERIPHERAL BLOOD
GRAFT PREPARATION ABO-incompatibility Donor Receiver Major Minor Mixed
Blood cell depletion (Major or mixed ABO-incompatibility) Ficoll density gradient centrifugation
Manual blood cell depletion(Major and mixed ABO-incompatibility) Ficoll density gradient centrifugation
Manual blood cell depletion(Major and mixed ABO-incompatibility) Ficoll density gradient centrifugation
Graft quality • The numeration of mononuclear cells (MNC) • The count of CD34+ • CFU-GM (Only in the first 7 years) FLOW CYTOMETRY Malassez cell Lamella
The PREPARATION of the GRAFT SO, • The most crucial step • Samples of high quality • Sufficient number of HSCs
Mean Median Extreme ≥2 MNC ( x 108/Kg) 3.06 2.6 0.67 – 17 76% 3.03 CD34+ ( x 106/Kg) 71% 3.83 0.23 – 21.83
Correlation between MNC and CD34+(Pearson statistical test ) Correlation coefficient=0.406 P=0.000
474 CASES TOTAL 3 groups Major & mixed Minor Compatible
No immediate or delayed hemolysis No infectious events related to graft contamination
The manual handling of the graft slow and laborious procedure
E conomic barriers S afety ofpatients H ematological disorders
Automatic preparation Transition Manual handling 1998-2010
ational lood ransfusion enter TUNISIA N B T C
N ational B T lood ransfusion C enter TUNISIA
ational lood ransfusion enter TUNISIA N B T C
N ational B T lood ransfusion C enter TUNISIA
ational lood ransfusion enter TUNISIA N B T C
N ational B T lood ransfusion C enter TUNISIA