在神经母细胞瘤小鼠模型中,由组状缩引起的免疫反应与化疗协同作用
bioRxiv : the preprint server for biology
|February 12, 2026
概括
作为一种非侵入性的超声疗法,基质缩疗法有效地延缓高风险神经母细胞瘤 (NB) 的生长,并通过增强免疫系统来增强化疗反应. 这种方法对治疗转移性NB有希望.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 生物医学工程 生物医学工程
背景情况:
- 高危神经母细胞瘤 (NB) 是一种儿童癌症,由于转移和免疫抑制,其结果不佳.
- 目前用于NB的化疗疗法有效性有限,需要新的治疗策略.
研究的目的:
- 调查基因组可以改变瘤微环境以改善转移性NB的化疗反应.
- 为了评估基因缩对非向瘤的全身影响.
主要方法:
- 在NB的小鼠模型中,用或不使用脂质体 doxorubicin (LDOX) 对一个瘤进行了基因组.
- 反侧瘤作为非向转移的模型.
- 监测了瘤的生长,并使用流细胞计,单细胞RNA测序和免疫组织化学分析了免疫细胞群,基因表达和亡途径.
主要成果:
- 仅仅基因组缩就显著延迟了治疗和非向瘤的生长,并增加了CD8+ T和CD11b+免疫细胞.
- NB细胞显示Myc表达和细胞循环活性下降,干扰素和亡通路信号增加.
- 组合治疗与组织缩和LDOX导致了最长的瘤生长延迟和增强的免疫细胞透.
结论:
- 在转移性NB的小鼠模型中,组织缩诱导了全身抗瘤免疫反应.
- 这种免疫调节增强了化疗的疗效,为高风险神经母细胞瘤提供了有前途的辅助疗法.
相关概念视频
Humoral Immune Responses
84.1K
Overview
84.1K
Cell-mediated Immune Responses
84.3K
Overview
84.3K
Cells of the Adaptive Immune Response
9.1K
The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
9.1K
Immune Response Against Viral Pathogens
2.1K
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
2.1K
Cells of the Innate Immune Response
9.5K
The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
9.5K
Initiation of Translation
39.2K
Initiating translation is complex because it involves multiple molecules. Initiator tRNA, ribosomal subunits, and eukaryotic initiation factors (eIFs) are all required to assemble on the initiation codon of mRNA. This process consists of several steps that are mediated by different eIFs.
First, the initiator tRNA must be selected from the pool of elongator tRNAs by eukaryotic initiation factor 2 (eIF2). The initiator tRNA (Met-tRNAi) has conserved sequence elements including modified bases at...
First, the initiator tRNA must be selected from the pool of elongator tRNAs by eukaryotic initiation factor 2 (eIF2). The initiator tRNA (Met-tRNAi) has conserved sequence elements including modified bases at...
39.2K


