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社交丰富化改变老年小鼠脑白细胞对化疗及肿瘤发展的反应。

Social enrichment alters the response of brain leukocytes to chemotherapy and tumor development in aged mice.

作者信息

Walker Ii William H, Liu Jennifer A, Meléndez-Fernández O Hecmarie, May Laura E, Kisamore Claire O, Brundage Kathleen M, Nelson Randy J, DeVries A Courtney

机构信息

Department of Neuroscience, Rockefeller Neuroscience Institute, USA.

West Virginia University Cancer Institute, USA.

出版信息

Heliyon. 2023 Dec 6;10(1):e23366. doi: 10.1016/j.heliyon.2023.e23366. eCollection 2024 Jan 15.

DOI:10.1016/j.heliyon.2023.e23366
PMID:38148808
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10750159/
Abstract

Aging is a risk factor for the development of breast cancer. Foundational science studies have supported associations among neuroinflammation, breast cancer, and chemotherapy, but to date, these associations are based on studies using young adult rodents. The current study examined the neuroinflammatory effects of chemotherapy in aged, tumor-naïve and tumor-bearing mice with or without social enrichment. Mice received two intravenous injections of doxorubicin (A) and cyclophosphamide (C) at a two-week interval. Brain immune cells were enriched/assessed via flow cytometry, seven days following the second chemotherapy injection. Social enrichment enhanced peripheral immune cell trafficking in aged tumor-naive mice treated with AC. Group housed aged tumor bearing mice receiving AC had reduced percentage of IL-6+ monocytes and granulocytes relative to their singly housed counterparts. Notably, group housing aged experimental mice with young cage partners significantly reduced TNF + monocytes, tumor volume, and tumor mass. These data illustrate the importance of social enrichment in attenuating neuroinflammation and are the first to demonstrate that social support with young housing partners reduces tumor growth in aged mice.

摘要

衰老 是 乳腺癌 发生发展 的 一个 风险 因素。基础科学研究 已 支持 神经炎症、乳腺癌 和 化疗 之间 存在 关联,但 迄今为止,这些 关联 是 基于 使用 年轻 成年 啮齿动物 的 研究。当前 研究 考察 了 在 有 或 无 社会 丰富化 条件下,化疗 对 未患肿瘤 和 患肿瘤 的 老年 小鼠 的 神经炎症 影响。小鼠 每隔 两周 接受 两次 阿霉素(A)和 环磷酰胺(C)的 静脉注射。在 第二次 化疗 注射 后 七天,通过 流式细胞术 富集/评估 脑 免疫 细胞。社会 丰富化 增强 了 接受 AC 治疗 的 未患肿瘤 的 老年 小鼠 外周 免疫 细胞 的 迁移。相对于 单独 饲养 的 同龄 患肿瘤 小鼠,群居 的 接受 AC 治疗 的 老年 患肿瘤 小鼠 的 IL-6+ 单核细胞 和 粒细胞 百分比 降低。值得注意的是,将 老年 实验 小鼠 与 年轻 的 笼伴 群居 显著 降低 了 TNF + 单核细胞、肿瘤 体积 和 肿瘤 质量。这些 数据 说明了 社会 丰富化 在 减轻 神经炎症 方面 的 重要性,并且 首次 证明 与 年轻 的 笼伴 群居 提供 的 社会 支持 可 降低 老年 小鼠 的 肿瘤 生长。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/ac86a6c1d5b7/mmcfigs2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/c1b2d24ae094/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/025d61756a31/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/efe781b52ea4/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/d6a7e1b01344/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/b27f0dd6cd00/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/67fe1ce0f661/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/5959e590fd50/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/915eeaea3c84/mmcfigs1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/ac86a6c1d5b7/mmcfigs2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/c1b2d24ae094/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/025d61756a31/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/efe781b52ea4/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/d6a7e1b01344/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/b27f0dd6cd00/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/67fe1ce0f661/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/5959e590fd50/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/915eeaea3c84/mmcfigs1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8d4/10750159/ac86a6c1d5b7/mmcfigs2.jpg

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A short social interaction between adult and old mice improves the homeostatic systems and increases healthy longevity.成年鼠与老年鼠之间的短暂社交互动可改善其体内平衡系统并延长健康寿命。
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Chronic Isolation Stress Affects Central Neuroendocrine Signaling Leading to a Metabolically Active Microenvironment in a Mouse Model of Breast Cancer.
慢性隔离应激影响中枢神经内分泌信号传导,导致乳腺癌小鼠模型中出现代谢活跃的微环境。
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Cognitive Effects and Depression Associated With Taxane-Based Chemotherapy in Breast Cancer Survivors: A Meta-Analysis.基于紫杉烷类化疗与乳腺癌幸存者认知效应及抑郁的相关性:一项荟萃分析。
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Perceived social support, coping strategies, anxiety and depression among women with breast cancer: Evaluation of a mediation model.乳腺癌患者的社会支持感知、应对策略、焦虑和抑郁:中介模型评估。
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