Biomaterial Database

Studies of natural killer cell activity and antibody-dependent cell-mediated cytotoxicity among patients with acute leukemia in complete remission. 1982

M Talpaz, and M Bielski, and E M Hersh

Department of Clinical Immunology and Biological Therapy, University of Texas System Cancer Center, Houston 77030.

Low natural killer (NK) cell activity against the K-562 leukemia cell line was observed in patients with acute leukemia in the early stages of remission, i.e., 2-4 months (11.3% +/- 7.95% specific target cell lysis). This parameter was found to be normal among leukemia patients after a longer time in remission (19.53% +/- 7.55%) when compared with healthy donors (18.46% +/- 12.98%). A similar pattern of activity was observed in studies of antibody-dependent cell-mediated cytolysis (ADCC) to the CEM lymphoid tumor cell line in the same group (37.58% +/- 12.4% vs. 51% +/- 6.79% specific target cell lysis). ADCC to chicken red blood cells (CRBC) and to human red blood cells (HRBC) was not significantly different from that for healthy controls at either duration of remission. Nine patients relapsed over a follow-up period of 9 months. They were found to have slightly lower NK activity (14.4% +/- 9.3%) and ADCC to CEM (41.4% +/- 8.5%) than the patients who remained in remission (17.1% +/- 6.8%; 48.7% +/- 9.7%, respectively). These data indicate a lymphocyte deficit which may persist for some time after remission has been induced, and which may be due to the effect of leukemic cell burden or the effect of aggressive chemotherapy.

UI	MeSH Term	Description	Entries
D007694	Killer Cells, Natural	Bone marrow-derived lymphocytes that possess cytotoxic properties, classically directed against transformed and virus-infected cells. Unlike T CELLS; and B CELLS; NK CELLS are not antigen specific. The cytotoxicity of natural killer cells is determined by the collective signaling of an array of inhibitory and stimulatory CELL SURFACE RECEPTORS. A subset of T-LYMPHOCYTES referred to as NATURAL KILLER T CELLS shares some of the properties of this cell type.	NK Cells,Natural Killer Cells,Cell, NK,Cell, Natural Killer,Cells, NK,Cells, Natural Killer,Killer Cell, Natural,NK Cell,Natural Killer Cell
D007938	Leukemia	A progressive, malignant disease of the blood-forming organs, characterized by distorted proliferation and development of leukocytes and their precursors in the blood and bone marrow. Leukemias were originally termed acute or chronic based on life expectancy but now are classified according to cellular maturity. Acute leukemias consist of predominately immature cells; chronic leukemias are composed of more mature cells. (From The Merck Manual, 2006)	Leucocythaemia,Leucocythemia,Leucocythaemias,Leucocythemias,Leukemias
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D012074	Remission Induction	Therapeutic act or process that initiates a response to a complete or partial remission level.	Induction of Remission,Induction, Remission,Inductions, Remission,Remission Inductions
D002645	Chickens	Common name for the species Gallus gallus, the domestic fowl, in the family Phasianidae, order GALLIFORMES. It is descended from the red jungle fowl of SOUTHEAST ASIA.	Gallus gallus,Gallus domesticus,Gallus gallus domesticus,Chicken
D005500	Follow-Up Studies	Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.	Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000208	Acute Disease	Disease having a short and relatively severe course.	Acute Diseases,Disease, Acute,Diseases, Acute
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia