Estimation of kinetic parameters of neutrophilic, eosinophilic, and basophilic granulocytes in human blood
- 1 July 1979
- journal article
- research article
- Published by Springer Nature in Annals of Hematology
- Vol. 39 (1) , 27-38
- https://doi.org/10.1007/bf01008072
Abstract
Two hematologically normal patients with glioblastoma and six patients with chronic lymphocytic leukemia received continuous3H-thymidine infusions for 3–10 days. In autoradiographs of blood cell smears taken for 25 days or more after the beginning of3H-thymidine administration the labeling index and the labeling intensity of granulocytes were determined. A sufficiently high labeling intensity, i. e. a sufficiently long autoradiographic exposure time was found to be critical for obtaining valid and reproducible results. On the basis of certain assumptions discussed in detail, complete labeling of cells with3H-thymidine followed by autoradiographic evaluation and mathematical analysis of the labeling patterns seems to be a suitable method for estimation of kinetic parameters of postmitotic granulocytes in vivo. The mean intramedullary maturation and storage time was observed to be 115 ± 7 h for neutrophils, 103 ± 4 h for eosinophils and 103 ± 11 h for basophils. The mean relative inflow rate into the blood (or relative turnover rate in the blood) was found to be 4.2 ± 0.4 %/h for neutrophils, 4.0 ± 0.4 %/h for eosinophils and 1.2 ± 0.3 %/h for basophils. The mean blood transit time (or blood sojourn time) was estimated to be 25 ± 2 h for neutrophils, 26 ± 3 h for eosinophils and 89 ± 21 h for basophils. Accordingly the half lifes (T 1/2) of granulocytes in the blood were 17.3 ± 1.4 h for neutrophils, 18.0 ± 2.1 foi eosinophils and 62 ± 15 h for basophils. Under the quasi steady state conditions of this study the kinetics of granulocytes in the present CLL patients appeared to be normal, despite a marked lymphocytic infiltration of the bone marrow. The apparent discrepancy between these findings and the data obtained with autotransfusion of DFP-labeled granulocytes is discussed. Zwei hämatologisch normale Patienten mit Glioblastoma multiforme und sechs Patienten mit chronischer lymphatischer Leukämie (CLL) erhielten3H-Thymidin-Infusionen von 3 bis 10 Tagen Dauer. In autoradiographierten Blutausstrichen wurden der Markierungsindex und die Markierungsintensität der Granulozyten bestimmt. Um optimale Markierungsverhältnisse zu erreichen, waren sehr lange autoradiographische Expositionszeiten erforderlich. Die mathematische Analyse der Markierungsindex-Kurven ermöglichte die Schätzung folgender kinetischer Parameter der postmitotischen Granulozyten: mittlere Reifungs- und Speicherungszeit im Knochenmark (115 ± 7 Std. für Neutrophile, 103 ± 4 Std. für Eosinophile und 103 ± 11 Std. für Basophile); mittlere relative Einstromrate ins Blut (4,2 ± 0,4%/Std. für Neutrophile, 4,0 ± 0,4%/Std. für Eosinophile und 1,2 ± 0,3%/Std. für Basophile); mittlere Blut-Transitzeit (25 ± 2 Std. für Neutrophile, 26 ± 3 Std. für Eosinophile und 89 ± 21 Std. für Basophile); mittlere Halbwertzeit im Blut (17,3 ± 1,4 Std. für Neutrophile, 18,0 ± 2,1 Std. für Eosinophile und 62 ± 15 Std. für Basophile). Unter den vorliegenden Bedingungen schien die Kinetik der Granulozyten bei den untersuchten CLL-Patienten trotz erheblicher lymphozytärer Infiltration des Knochenmarks normal zu sein. Der auffällige Unterschied der Bluthalbwertszeit für Neutrophile in dieser Studie und den früher publiziertem Werte aufgrund von Autotransfusionen DFP-markierter Granulozyten wird diskutiert.Keywords
This publication has 24 references indexed in Scilit:
- The peripheral kinetics of human radiolabelled eosinophilsVirchows Archiv B Cell Pathology, 1976
- Neutrophil kinetics in man.Journal of Clinical Investigation, 1976
- Reutilization of DNA catabolites in granulocytopoiesisAnnals of Hematology, 1975
- Kinetic Studies of51Cr and DF32P Labelled GranulocytesBritish Journal of Haematology, 1975
- KINETICS OF NEUTROPHILIC GRANULOCYTES IN THE BLOOD OF RATSCell Proliferation, 1973
- Monocyte Kinetic Studies in Normal and Disease StatesBritish Journal of Haematology, 1973
- Neutrophil kinetics in man studies using autotransfusion of3H-DFP labeled blood cells and autoradiographyAnnals of Hematology, 1973
- The kinetics of neutrophilic leukocytes in health and in disease.1967
- AN ANALYSIS OF GRANULOCYTE KINETICS IN BLOOD AND BONE MARROW*Annals of the New York Academy of Sciences, 1964
- An Algorithm for Least-Squares Estimation of Nonlinear ParametersJournal of the Society for Industrial and Applied Mathematics, 1963