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Research progress on the advantages, mechanisms and design strategies of nanomaterials for immunomodulatory angiogenesis

Yuxiao Luo,Xiaohe Zhou,Jiling Xie,Ziwei Chen,Yupeng Wu,Zedong Lan,Liangjiao Chen

Published 2025 in Materials Today Bio

ABSTRACT

Owing to the difficulty in achieving effective and timely vascularization, repairing the structure and function of damaged tissues and organs remains a major challenge in clinical practice. The immune microenvironment is a key factor affecting angiogenesis; however, traditional strategies have failed to take full advantage of this property. Recent advances in nanomaterial design have shifted from “immune avoidance” to “immune interaction”, representing a breakthrough in promoting angiogenesis. An increasing number of studies have reported that nanomaterials(NMs) can induce and regulate immune cells or immune metabolic reprogramming to promote angiogenesis, but few studies have investigated the specific mechanism by which NMs affect immune cells and how they are involved in different stages of angiogenesis. This article reviews the advantages of NMs and focuses on the specific mechanisms by which NMs regulate immune cells, including immune extracellular regulation (changes in the physical and chemical environment), the regulation of membrane receptors and membrane potential, and regulation within immune cells, such as the metabolic activity of immune cells. According to the application scenarios of tissue regeneration (bone, skin, nerve and cardiovascular tissue), the influencing factors and design smart nanomaterials through immune regulation are summarized, and the current challenges and development directions of NMs in clinical applications are proposed, particularly in precision medicine and clinical transformation. This review provides a theoretical basis for an in-depth understanding of NMs and immunomodulatory vascularization for tissue regeneration to optimize the design strategy, rational development and clinical application of NMs in the field of immunovascularization.

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