VITAMIN-D3 BINDING-ACTIVITY DURING LEUKEMIC-CELL DIFFERENTIATION

被引：10

作者：

FELDMAN, J ^{[1
]}

FEDERICO, MHH ^{[1
]}

SONOHARA, S ^{[1
]}

KATAYAMA, MLH ^{[1
]}

KOIKE, MAA ^{[1
]}

ROELA, RA ^{[1
]}

DASILVA, MRP ^{[1
]}

BRENTANI, MM ^{[1
]}

机构：

[1] UNIV SAO PAULO,FAC MED,DEPT CLIN MED,DISCIPLINA ONCOL,AV DR ARNALDO 455-4,BR-01246 SAO PAULO,BRAZIL

来源：

LEUKEMIA RESEARCH | 1993年 / 17卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

VITAMIN-D3; RECEPTOR; HL-60 CELL LINE; ACUTE LEUKEMIA; CELL DIFFERENTIATION; CELL PROLIFERATION; PHORBOL-MYRISTATE ACETATE; RETINOIC ACID; GAMMA INTERFERON;

D O I：

10.1016/0145-2126(93)90146-C

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

In this paper we report that differentiation of the human promyelocytic leukemia cell line, HL60, along the myelocytic pathway, induced by retinoic acid (RA), or monocytic pathway, induced by phorbol-myristate acetate (PMA) and gamma interferon (IFN), was accompanied by a significant decline in 1,25-dihydroxycholecalciferol (1,25(OH)2D3) binding (control: 30.3 +/- 3.0 fM/10(6) cells; RA treated: 6.8 + 2.5 fM/10(6) cells; PMA treated: 12.3 +/- 6.7 fM/10(6) cells and IFN treated: 16.0 +/- 5.0 fM/10(6) cells). When differentiation and proliferation were uncoupled, by incubation with IFN or by inhibition of proliferation by cell density saturation, 1,25(OH)2D3 binding was better related to differentiation than to proliferation. Additionally we have compared 1,25(OH)2D3 binding levels in blasts from acute lymphocytic leukemia (ALL) patients (25.4 +/- 18.1 fM/10(6) cells) and normal, mature lymphocytes (10.6 +/- 2.1 fM/10(6) cells). Receptor binding was significantly higher (p < 0.05) in the immature blasts. Our data suggest that 1,25(OH)2D3 receptor levels could be considered a marker of functional immaturity, in these cells.

引用

页码：97 / 101

页数：5

共 20 条

[1]

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[2]

BOYUM A, 1986, SCAND J CLIN LAB I S, V7, P77

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