Activation of innate immunity by prostate specific antigen (PSA).

Activation of innate immunity by prostate specific antigen (PSA).
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前列腺特异性抗原(PSA)激活先天免疫。

DOI:
10.1002/pros.20414
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发表时间:
2006
期刊:
The Prostate
影响因子:
--
通讯作者:
Alexander,RichardB
Alexander,RichardB
中科院分区:
--
文献类型:
--
作者:
Kodak,JamesA;Mann,DeanL;Klyushnenkova,ElenaN;Alexander,RichardB

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背景前列腺特异性抗原(PSA)是由前列腺上皮分泌的丝氨酸蛋白酶。该蛋白质唯一已知的功能是裂解精白蛋白。我们希望确定 PSA 是否激活外周血单核细胞 (PBMC)。方法用纯化的 PSA 培养 BMC 和选定的亚群。通过细胞因子捕获流式细胞术和酶联免疫吸附测定法测量 IFNγ 的分泌。结果我们观察到 PSA 培养的 PBMC 中 IFNγ 的分泌和增殖反应。我们发现NK细胞是IFNγ的来源,但NK细胞并没有直接受到PSA的刺激。相反,主要由 CD14 单核细胞响应 PSA 分泌的可溶性因子刺激 NK 细胞分泌 IFNγ。讨论 PSA 诱导促炎反应,导致 NK 细胞分泌 INFγ。大量 PSA 的存在可能导致前列腺中常见的炎症浸润。前列腺 66:1592–1599,2006 年。2006 年出版 Wiley-Liss, Inc.
BACKGROUNDProstate specific antigen (PSA) is a serine protease secreted by the prostatic epithelium. The only known function of the protein is to cleave seminogelin. We wished to determine if PSA activated peripheral blood mononuclear cells (PBMC).METHODSPBMC and selected sub‐populations were cultured with purified PSA. Secretion of IFNγ was measured by cytokine capture flow cytometry and enzyme‐linked immunosorbent assay.RESULTSWe observed secretion of IFNγ and a proliferative response in PBMC cultured with PSA. We found that NK cells were the source of the IFNγ but NK cells were not directly stimulated by PSA. Rather, a soluble factor secreted primarily by CD14 monocytes in response to PSA stimulated NK cells to secrete IFNγ.DISCUSSIONPSA induces a pro‐inflammatory response that results in the secretion of INFγ by NK cells. The presence of large amounts of PSA could contribute to the common finding of inflammatory infiltrates in the prostate. Prostate 66: 1592–1599, 2006. Published 2006 Wiley‐Liss, Inc.
DOI: 10.1126/science.570724
发表时间: 1979-03
期刊: Science
影响因子: 56.9
作者:
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通讯作者: H. Rosengarten;A. Friedhoff
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DOI: 10.1126/science.918669
发表时间: 1977
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影响因子: 56.9
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DOI: 10.1016/0024-3205(79)90330-8
发表时间: 1979
期刊: Life sciences
影响因子: 6.1
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DOI: 10.1177/002221948001300205
发表时间: 1980-01-01
影响因子: 3
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人类胎儿中的苯二氮卓受体。
DOI: --
发表时间: 1983
期刊: Biology of the Neonate
影响因子: --
作者:
L. Aaltonen;R. Erkkola;J. Kanto
通讯作者: J. Kanto