400-998-5282
专注多肽 服务科研

PSMα3 是一种用于耐受性 DC 诱导的肽,可用于 DC 疫苗接种。PSMα3 通过改变 TLR2 或 TLR4 诱导的成熟,抑制促炎细胞因子和消炎细胞因子的产生并减少抗原摄取,渗透并调节人单核细胞衍生的 DC。PSMα3 是耐甲氧西林金黄色葡萄球菌 (MRSA) 最具毒性的菌株释放的重要毒素。
PSMα3 is a peptide for manipulating DCs to become tolerogenic for DC vaccination strategies. PSMα3 penetrates and modulates human monocyte-derived DCs by altering the TLR2- or TLR4-induced maturation, inhibiting pro- and anti-inflammatory cytokine production and reducing antigen uptake. PSMα3 is an important toxin released by the most virulent strains of methicillin-resistant Staphylococcus aureus (MRSA)[1][2].
很多蛋白在细胞中非常容易被降解,或被标记,进而被选择性地破坏。但含有部分D型氨基酸的多肽则显示了很强的抵抗蛋白酶降解能力。
Richardson JR, et, al. Staphylococcus aureus PSM Peptides Modulate Human Monocyte-Derived Dendritic Cells to Prime Regulatory T Cells. Front Immunol. 2018 Nov 13;9:2603. : https://pubmed.ncbi.nlm.nih.gov/30555457/
Tayeb-Fligelman E, et, al. The cytotoxic Staphylococcus aureus PSMα3 reveals a cross-α amyloid-like fibril. Science. 2017 Feb 24;355(6327):831-833. : https://pubmed.ncbi.nlm.nih.gov/28232575/





