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Updated: Jun 26, 2025

Preparation of Tumor Antigen-loaded Mature Dendritic Cells for Immunotherapy

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Published on: August 1, 2013

在恶性质瘤中与树突细胞疫苗接种相结合时,TLR激动剂使干扰素反应两极化:一个随机的II期试验

Richard G Everson^1,2, Willy Hugo^2,3,4, Lu Sun¹

¹Department of Neurosurgery, David Geffen School of Medicine at UCLA, University of California Los Angeles, Los Angeles, CA, 90095, USA.

Nature communications

|May 8, 2024

概括

将多ICLC添加到树突细胞疫苗中安全地提高了恶性质瘤患者的免疫反应. 更高的干扰素基因表达与更好的生存率相关,这表明免疫治疗的潜在生物标志物.

科学领域:

免疫治疗是一种免疫疗法.
在瘤学瘤学.
临床试验临床试验

背景情况:

恶性结质瘤 (世卫组织III-IV级) 的预后不好.
自主瘤溶解酸脉冲树突细胞 (ATL-DC) 疫苗接种是一种研究方法.
TLR激动剂是免疫刺激剂,具有作为疫苗辅助剂的潜力.

研究的目的:

为了评估添加TLR激动剂 (多ICLC或resiquimod) 到ATL-DC疫苗接种的安全性和有效性.
确定最佳组合,以增强质瘤患者的免疫力.
为了确定与治疗反应相关的潜在血液生物标志物.

主要方法:

随机二期临床试验.随机二期临床试验.
患有新诊断或复发性恶性质瘤的患者接受了ATL-DC疫苗接种,其中包括多ICLC或resiquimod.
通过基因表达 (干扰素诱导的基因) 和免疫细胞激活标记 (PD-1,CD38,CD39) 来评估免疫反应.

主要成果:

接种ATL-DC疫苗和TLR激动剂的组合是安全的.
系统性免疫反应得到增强,由增加的干扰素基因表达和改变的免疫细胞概况 (例如,单细胞增加,T细胞标记物变化) 证明.
在单细胞和T淋巴细胞中,多ICLC放大了干扰素诱导的基因表达.
更高的干扰素反应基因表达与延长存活时间和延迟疾病进展相关.

结论:

结合ATL-DC疫苗接种与多ICLC是安全的,并增强恶性质瘤患者的全身免疫反应.
循环单细胞和CD8+T细胞中的偏振干扰素反应可能作为血液生物标志物,用于免疫疗法的有效性.
这种组合需要进一步研究,作为恶性质瘤的潜在免疫疗法策略.

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