时间标签：数据日期 2026-11-05 · 生成时间 2026-11-05 05:30（Asia/Shanghai）｜ 检索窗口 PubMed edat 2026/11/02 – 2026/11/06 ｜ 情报发生日期 2026-11-05
研究问题
Unresolved questions, whether PBMC PARP activity predicts immune aging, sex differences, and whether partial inhibition reduces NAD+ consumption without compromising DNA repair.
方法
We propose a context-dependent PARP-CD38-NAD+-inflammaging hierarchy.；By rethinking PARPs as context-dependent integrators, we provide a framework for immunogerontology.；PARP3 restrains Lgr5+ intestinal stem cell proliferation in mice, and organoid models contribute to intestinal aging [30].
核心结论
In vitro studies demonstrate that PARP1 rapidly consumes NAD+ upon DNA damage activation, with the capacity to deplete cellular NAD+ pools under acute stress conditions [10, 20, 28].；These findings suggest that NAD+ decline may be tissue-specific and compartment-specific rather than a universal feature of aging and that blood NAD+ is not a reliable biomarker in geroscience [23].
局限
However, research from 2020 to 2026 has shown that PARPs operate beyond the nucleus, regulating nuclear factor kB (NF-κB) signaling, inflammasome activation, type-I interferon responses, and macrophage polarization through both catalytic and non-catalytic mechanisms [8, 9].；However, recent evidence challenges the universal NAD+ decline, with direct human data from skeletal muscle and whole blood showing that NAD+ levels may not decline uniformly with age [22, 23].；However, recent research has revealed the immunomodulatory functions of PARP1 in T-cells and macrophages, particularly in cytokine expression and regulation of cyclic GMP-AMP synthase and stimulator of interferon genes (cGAS-STING) pathways [8, 27].
对本项目的价值
中高价值：属「衰老细胞清除 / SASP 轴」方向；细胞衰老 / senolytics / SASP栏目可用作本项目文献库与综述素材。 ｜ 价值分 3.0/5（★★★☆☆）
全文来源
出版商/仓储 OA PDF（正文 18,652 字符，题名指纹 1.0，正文内 DOI 命中，已过题名指纹 + 正文长度归属校验）
原文题录
- 中文题名：PARP-CD38 驱动的 NAD+ 流失与免疫衰老：新兴机制框架
- 英文标题：PARP-CD38-Driven NAD(+) Loss in Immune Aging: An Emerging Mechanistic Framework.
- 期刊与标识：Aging and disease · PMID 42970312 · DOI 10.14336/AD.2026.0890