Sialyl SSEA-1 antigen as a carbohydrate marker of human natural killer cells and immature lymphoid cells.

Sialyl SSEA-1 antigen as a carbohydrate marker of human natural killer cells and immature lymphoid cells.
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唾液酸 SSEA-1 抗原作为人类自然杀伤细胞和未成熟淋巴细胞的碳水化合物标记。

DOI:
10.1182/blood.v74.1.255.bloodjournal741255
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发表时间:
1989
期刊:
影响因子:
20.3
通讯作者:
H. Arita
H. Arita
中科院分区:
医学1区
文献类型:
--
作者:
Katsuyuki Ohmori;T. Yoneda;G. Ishihara;Katsuyoshi Shigeta;K. Hirashima;M. Kanai;S. Itai;Tetsu Sasaoki;Shigeki Arii;H. Arita

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利用一种特异性单克隆抗体MoAb FH - 6,通过流式细胞术研究了一种碳水化合物抗原——唾液酸化SSEA - 1(唾液酸化Lex - i)在人淋巴细胞中的分布。我们得出结论,正常外周血(PB)中存在的唾液酸化SSEA - 1抗原阳性的淋巴细胞是自然杀伤(NK)细胞,因为这些阳性细胞对K562细胞具有NK活性,并且大多数唾液酸化SSEA - 1⁺细胞同时对Leu - 11(CD - 16)和Leu - 19呈阳性。从健康供体和患有与淋巴恶性肿瘤无关疾病的患者采集的外周血样本中,基本上没有由Leu - 4(CD3)和Leu - 16(CD20)定义的T细胞和B细胞对唾液酸化SSEA - 1抗原呈阳性。在恶性淋巴细胞中,在大颗粒淋巴细胞(LGL)白血病细胞和一些急性淋巴细胞白血病(ALL)原始细胞中观察到许多唾液酸化SSEA - 1⁺细胞,但在慢性淋巴细胞白血病(CLL)细胞或恶性淋巴瘤细胞中未观察到。唾液酸化SSEA - 1在一些培养的人淋巴细胞系中也呈阳性。我们得出结论,唾液酸化SSEA - 1抗原的表达在正常外周血的成熟淋巴细胞中严格局限于特定的NK细胞群,但该抗原存在于T细胞和B细胞谱系以及NK细胞谱系的多种未成熟淋巴母细胞中。在成熟过程中,唾液酸化SSEA - 1抗原从T细胞和B细胞谱系的未成熟淋巴细胞表面消失。
The distribution of a carbohydrate antigen, the sialyl SSEA-1 (sialyl Lex-i), in human lymphoid cells was investigated by flow cytometry with a specific monoclonal antibody, MoAb FH-6. We concluded that the lymphocytes positive for the sialyl SSEA-1 antigen present in normal peripheral blood (PB) are natural killer (NK) cells since the positive cells had an NK activity toward K562 cells, and most of the sialyl SSEA-1+ cells were simultaneously positive for Leu-11 (CD-16) and Leu-19. Essentially, no T and B cells, defined by Leu-4 (CD3) and Leu-16 (CD20), were positive for the sialyl SSEA-1 antigen in PB samples taken from healthy donors and patients with disorders unrelated to lymphoid malignancies. Among the malignant lymphoid cells, many sialylated SSEA-1+ cells were observed in large granular lymphocyte (LGL) leukemia cells and some acute lymphoblastic leukemia (ALL) blasts, but not in CLL cells or malignant lymphoma cells. Sialyl SSEA-1 was also positive in some cultured human lymphoid cell lines. We conclude that expression of the sialyl SSEA-1 antigen is strictly limited to a distinct population of NK cells among the mature lymphocytes in normal PB, but the antigen is present in a wide range of immature lymphoblasts of T- and B-cell lineages as well as the NK-cell lineage. The sialyl SSEA-1 antigen disappears from the surface of immature lymphocytes of T- and B-cell lineages during the course of maturation.
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