A method to determine an engrafting cell dose of...

G - Physics – 01 – N

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G01N 33/50 (2006.01) G01N 33/49 (2006.01) G01N 33/569 (2006.01)

Patent

CA 2427641

A method to determine an engrafting cell dose of hematopoietic stem cell transplant units from transplant sources having nucleated cells selected from the group consisting of cord blood, bone marrow, peripheral blood comprising the steps of - subjecting the source to a substantially complete erythrocyte lysis, - measuring in a cell counter a signal corresponding selectively to white blood cells, - assessing essentially quantitatively nucleated red blood cell (NRBC) count as part of the total nucleated cell (NC) count, - and determining the number of white blood cells (WBCs) as transplant relevant cells.

L'invention concerne un procédé de détermination de densité cellulaire de greffage d'unités de transplantation de cellules souches hématopoïétiques provenant de sources de transplantation contenant de cellules nucléées sélectionnées parmi le groupe comprenant le sang ombilical, la moelle osseuse, le sang périphérique, et consistant à soumettre la source à une lyse érythrocytaire sensiblement complète, à mesurer, dans un compteur de cellules, un signal correspondant sélectivement aux globules blancs, à évaluer, de manière essentiellement quantitative, un comptage des globules rouges (NRBC) en tant que partie du comptage des cellules nucléées totales (NC), et à déterminer le nombre de globules blancs (WBC) en tant que cellules adéquates pour une transplantation.

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