{"title":"建立酵母菌株免疫调节功能的体外评估方法。","authors":"Ying Chuin Yee, Akihiro Nakamura, Yoshikiyo Okada, Takeshi Mori, Yoshiki Katayama","doi":"10.1007/s44211-024-00641-4","DOIUrl":null,"url":null,"abstract":"<div><p><i>Saccharomyces cerevisiae</i>, a widely studied yeast known for its industrial applications, is increasingly recognized for its potential in immunomodulation. This study aimed to systematically analyze and compare the immune-modulating properties of various <i>S. cerevisiae</i> strains under controlled experimental conditions. Three essential signals crucial for immune response activation were evaluated to elucidate the immunological responses elicited by these strains, i.e., dendritic cells (DC) cytokine secretion profiles, maturation status, and T cell polarization. Analysis of DC cytokine secretion profiles and maturation status revealed that all tested yeast strains induced DC activation, characterized by significant IL-6 secretion and modest IL-10 induction, as well as upregulation of MHC II molecules. Additionally, strain-specific effects were observed, particularly, strain AJM109 and Y1383 uniquely enhanced CD86 and PD-L1 expression, respectively, suggesting differential impacts on DC co-stimulatory signaling. Furthermore, strain Y1383 showed a unique capacity to support Treg-mediated immune suppression, demonstrating its potential in immune tolerance induction. 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引用次数: 0
摘要
酿酒酵母（Saccharomyces cerevisiae）是一种因其工业应用而被广泛研究的酵母，其免疫调节的潜力也日益得到认可。本研究旨在对照实验条件下系统分析和比较各种酿酒酵母菌株的免疫调节特性。研究评估了激活免疫反应的三个关键信号，以阐明这些菌株引起的免疫反应，即树突状细胞（DC）细胞因子分泌谱、成熟状态和 T 细胞极化。对DC细胞因子分泌谱和成熟状态的分析表明，所有测试的酵母菌株都能诱导DC活化，其特点是分泌大量IL-6和适度诱导IL-10，以及上调MHC II分子。此外，还观察到了菌株特异性效应，尤其是菌株 AJM109 和 Y1383 分别独特地增强了 CD86 和 PD-L1 的表达，这表明它们对 DC 协同刺激信号传导产生了不同的影响。此外，菌株 Y1383 显示出支持 Treg 介导的免疫抑制的独特能力，证明了其在免疫耐受诱导方面的潜力。这些发现凸显了基于麦角菌的免疫调节的复杂性，并强调了标准化评估方法对区分其特定免疫学效应的重要性。
Establishment of an in vitro evaluation method for immunomodulatory functions of yeast strains
Saccharomyces cerevisiae, a widely studied yeast known for its industrial applications, is increasingly recognized for its potential in immunomodulation. This study aimed to systematically analyze and compare the immune-modulating properties of various S. cerevisiae strains under controlled experimental conditions. Three essential signals crucial for immune response activation were evaluated to elucidate the immunological responses elicited by these strains, i.e., dendritic cells (DC) cytokine secretion profiles, maturation status, and T cell polarization. Analysis of DC cytokine secretion profiles and maturation status revealed that all tested yeast strains induced DC activation, characterized by significant IL-6 secretion and modest IL-10 induction, as well as upregulation of MHC II molecules. Additionally, strain-specific effects were observed, particularly, strain AJM109 and Y1383 uniquely enhanced CD86 and PD-L1 expression, respectively, suggesting differential impacts on DC co-stimulatory signaling. Furthermore, strain Y1383 showed a unique capacity to support Treg-mediated immune suppression, demonstrating its potential in immune tolerance induction. These findings underscore the complexity of S. cerevisiae-based immune modulation and emphasize the importance of standardized evaluation methods to distinguish their specific immunological effects.
期刊介绍：
Analytical Sciences is an international journal published monthly by The Japan Society for Analytical Chemistry. The journal publishes papers on all aspects of the theory and practice of analytical sciences, including fundamental and applied, inorganic and organic, wet chemical and instrumental methods.
This publication is supported in part by the Grant-in-Aid for Publication of Scientific Research Result of the Japanese Ministry of Education, Culture, Sports, Science and Technology.
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