Injectable hydrogel regulates immune infiltration through physical and chemical synergy in the treatment of steroid-induced osteonecrosis of the femoral head

The incidence of steroid-induced osteonecrosis of the femoral head (SONFH) is increasing annually; however, the underlying pathological mechanism remains unclear, which is an obstacle to its effective treatment. The negative effect of immune infiltration on the physiological activity of focal stem c...

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Main Authors: Zherui Fu, Yiwen Xu, Fangqi Xu, Haoyu Zhou, Na Lin, Ning Zhang, Feng Lin
Format: Article
Language:English
Published: Elsevier 2025-04-01
Series:Materials Today Bio
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Online Access:http://www.sciencedirect.com/science/article/pii/S2590006425000699
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author Zherui Fu
Yiwen Xu
Fangqi Xu
Haoyu Zhou
Na Lin
Ning Zhang
Feng Lin
author_facet Zherui Fu
Yiwen Xu
Fangqi Xu
Haoyu Zhou
Na Lin
Ning Zhang
Feng Lin
author_sort Zherui Fu
collection DOAJ
description The incidence of steroid-induced osteonecrosis of the femoral head (SONFH) is increasing annually; however, the underlying pathological mechanism remains unclear, which is an obstacle to its effective treatment. The negative effect of immune infiltration on the physiological activity of focal stem cells is one potential mechanism that has attracted attention. It is difficult to simulate the complex regulation of the interaction system between immune cells and stem cells using a single regulation method. In this study, we demonstrated that the immune infiltration of T helper 17 (Th17) cells plays an important role in the progression of SONFH. Based on this finding, we developed an injectable hydrogel system with both physical and chemical synergistic regulatory properties to enhance the activity of stem cells using electrical stimulation. This treatment was designed to prevent the infiltration of Th17 cells by regulating the physiological function of stem cells and blocking the negative effect of Th17 cells on stem cells pharmacologically. Thus, the dual synergistic regulation of immune infiltration at the lesion site of SONFH enhanced the physiological activity and function of the stem cells, thereby improving the therapeutic effect of SONFH. This hydrogel system provides insight for the future development of multifactorial regulatory systems and provides a strategy for the treatment of SONFH.
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id doaj-art-b0c35a842ea64bef87a1a6b1e15d3f05
institution Kabale University
issn 2590-0064
language English
publishDate 2025-04-01
publisher Elsevier
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series Materials Today Bio
spelling doaj-art-b0c35a842ea64bef87a1a6b1e15d3f052025-01-26T05:04:44ZengElsevierMaterials Today Bio2590-00642025-04-0131101511Injectable hydrogel regulates immune infiltration through physical and chemical synergy in the treatment of steroid-induced osteonecrosis of the femoral headZherui Fu0Yiwen Xu1Fangqi Xu2Haoyu Zhou3Na Lin4Ning Zhang5Feng Lin6Department of Emergency, The First People's Hospital of Xiaoshan District, Xiaoshan Affiliated Hospital of Wenzhou Medical University, Hangzhou, 310000, PR ChinaDepartment of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, 310000, PR ChinaDepartment of Emergency, The First People's Hospital of Xiaoshan District, Xiaoshan Affiliated Hospital of Wenzhou Medical University, Hangzhou, 310000, PR ChinaDepartment of Emergency, The First People's Hospital of Xiaoshan District, Xiaoshan Affiliated Hospital of Wenzhou Medical University, Hangzhou, 310000, PR ChinaDepartment of Orthopaedic Surgery, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, 310000, PR ChinaDepartment of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, 310000, PR ChinaDepartment of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, 310000, PR China; Corresponding author.The incidence of steroid-induced osteonecrosis of the femoral head (SONFH) is increasing annually; however, the underlying pathological mechanism remains unclear, which is an obstacle to its effective treatment. The negative effect of immune infiltration on the physiological activity of focal stem cells is one potential mechanism that has attracted attention. It is difficult to simulate the complex regulation of the interaction system between immune cells and stem cells using a single regulation method. In this study, we demonstrated that the immune infiltration of T helper 17 (Th17) cells plays an important role in the progression of SONFH. Based on this finding, we developed an injectable hydrogel system with both physical and chemical synergistic regulatory properties to enhance the activity of stem cells using electrical stimulation. This treatment was designed to prevent the infiltration of Th17 cells by regulating the physiological function of stem cells and blocking the negative effect of Th17 cells on stem cells pharmacologically. Thus, the dual synergistic regulation of immune infiltration at the lesion site of SONFH enhanced the physiological activity and function of the stem cells, thereby improving the therapeutic effect of SONFH. This hydrogel system provides insight for the future development of multifactorial regulatory systems and provides a strategy for the treatment of SONFH.http://www.sciencedirect.com/science/article/pii/S2590006425000699Injectable hydrogelImmune infiltrationTh17 cellSteroid-inducedOsteonecrosis of the femoral head
spellingShingle Zherui Fu
Yiwen Xu
Fangqi Xu
Haoyu Zhou
Na Lin
Ning Zhang
Feng Lin
Injectable hydrogel regulates immune infiltration through physical and chemical synergy in the treatment of steroid-induced osteonecrosis of the femoral head
Materials Today Bio
Injectable hydrogel
Immune infiltration
Th17 cell
Steroid-induced
Osteonecrosis of the femoral head
title Injectable hydrogel regulates immune infiltration through physical and chemical synergy in the treatment of steroid-induced osteonecrosis of the femoral head
title_full Injectable hydrogel regulates immune infiltration through physical and chemical synergy in the treatment of steroid-induced osteonecrosis of the femoral head
title_fullStr Injectable hydrogel regulates immune infiltration through physical and chemical synergy in the treatment of steroid-induced osteonecrosis of the femoral head
title_full_unstemmed Injectable hydrogel regulates immune infiltration through physical and chemical synergy in the treatment of steroid-induced osteonecrosis of the femoral head
title_short Injectable hydrogel regulates immune infiltration through physical and chemical synergy in the treatment of steroid-induced osteonecrosis of the femoral head
title_sort injectable hydrogel regulates immune infiltration through physical and chemical synergy in the treatment of steroid induced osteonecrosis of the femoral head
topic Injectable hydrogel
Immune infiltration
Th17 cell
Steroid-induced
Osteonecrosis of the femoral head
url http://www.sciencedirect.com/science/article/pii/S2590006425000699
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