Sensory nerve EP4 facilitates heterotopic ossification by regulating angiogenesis-coupled bone formation

Objective: Heterotopic ossification (HO) refers to the abnormal development of bone in soft tissue rather than within bone itself. Previous research has shown that sensory nerve prostaglandin E2 receptor 4 (EP4) signaling not only governs pain perception but also influences bone formation. However,...

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Main Authors: Rongmin Lin, Hancheng Lin, Chencheng Zhu, Jieming Zeng, Jiahui Hou, Ting Xu, Yihui Tan, Xuyou Zhou, Yuan Ma, Mankai Yang, Kuanhai Wei, Bin Yu, Hangtian Wu, Zhuang Cui
Format: Article
Language:English
Published: Elsevier 2024-11-01
Series:Journal of Orthopaedic Translation
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Online Access:http://www.sciencedirect.com/science/article/pii/S2214031X24001219
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author Rongmin Lin
Hancheng Lin
Chencheng Zhu
Jieming Zeng
Jiahui Hou
Ting Xu
Yihui Tan
Xuyou Zhou
Yuan Ma
Mankai Yang
Kuanhai Wei
Bin Yu
Hangtian Wu
Zhuang Cui
author_facet Rongmin Lin
Hancheng Lin
Chencheng Zhu
Jieming Zeng
Jiahui Hou
Ting Xu
Yihui Tan
Xuyou Zhou
Yuan Ma
Mankai Yang
Kuanhai Wei
Bin Yu
Hangtian Wu
Zhuang Cui
author_sort Rongmin Lin
collection DOAJ
description Objective: Heterotopic ossification (HO) refers to the abnormal development of bone in soft tissue rather than within bone itself. Previous research has shown that sensory nerve prostaglandin E2 receptor 4 (EP4) signaling not only governs pain perception but also influences bone formation. However, the relationship between sensory nerve EP4 and the pathogenesis of HO in the Achilles tendon remains unclear. This study aims to investigate this relationship and the underlying mechanisms. Methods: We generated sensory nerve EP4-specific knockout mice, with the genotype of Avil-CreEP4fl/fl, was propagated. Transcriptome sequencing and bioinformatics analysis techniques were used to identify the potential molecular pathways involving with sensory nerve EP4. Additionally, a neurectomy mouse model was created by transecting the sciatic nerve transection, to examine the effects and mechanisms of peripheral innervation on HO in vivo. Micro-CT, immunofluorescence (IF), Hematoxylin and Eosin (H&E) Staining, Safranin O-Fast Green staining and western blotting were used to analyze changes in cellular and tissue components. Results: We here observed an increase in sensory nerve EP4 and H-type vessels during the pathogenesis of HO in both human subjects and mice. Proximal neurectomy through sciatic nerve transection or the targeted knockout of EP4 in sensory nerves hindered angiogenesis-dependent bone formation and the development of HO at the traumatic site of the Achilles tendon. Furthermore, we identified the Efnb2 (Ephrin-B2)/Dll4 (Delta-like ligand 4) axis as a potential downstream element influenced by sensory nerve EP4 in the regulation of HO. Notably, administration of an EP4 inhibitor demonstrated the ability to alleviate HO. Based on these findings, sensory nerve EP4 emerges as an innovative and promising approach for managing HO. Conclusion: Our findings demonstrate that the sensory nerve EP4 promotes ectopic bone formation by modulating angiogenesis-associated osteogenesis during HO. The translational potential of this article: Our results provide a mechanistic rationale for targeting sensory nerve EP4 as a promising candidate for HO therapy.
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spelling doaj-art-d0df0bd56d8747e88da819b1dba430862024-12-05T05:20:27ZengElsevierJournal of Orthopaedic Translation2214-031X2024-11-0149325338Sensory nerve EP4 facilitates heterotopic ossification by regulating angiogenesis-coupled bone formationRongmin Lin0Hancheng Lin1Chencheng Zhu2Jieming Zeng3Jiahui Hou4Ting Xu5Yihui Tan6Xuyou Zhou7Yuan Ma8Mankai Yang9Kuanhai Wei10Bin Yu11Hangtian Wu12Zhuang Cui13Department of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China; Key laboratory of bone and cartilage regeneration medicine, Southern Medical University, Guangzhou, Guangdong, 510515, ChinaDepartment of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China; Key laboratory of bone and cartilage regeneration medicine, Southern Medical University, Guangzhou, Guangdong, 510515, ChinaDepartment of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China; Key laboratory of bone and cartilage regeneration medicine, Southern Medical University, Guangzhou, Guangdong, 510515, ChinaGuangzhou Hospital of Integrated Traditional and Western Medicine, Guangzhou, Guangdong, 510515, ChinaDepartment of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China; Key laboratory of bone and cartilage regeneration medicine, Southern Medical University, Guangzhou, Guangdong, 510515, ChinaDepartment of Sleep Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, ChinaThe Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510130, ChinaDepartment of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China; Key laboratory of bone and cartilage regeneration medicine, Southern Medical University, Guangzhou, Guangdong, 510515, ChinaDepartment of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China; Key laboratory of bone and cartilage regeneration medicine, Southern Medical University, Guangzhou, Guangdong, 510515, ChinaDepartment of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China; Key laboratory of bone and cartilage regeneration medicine, Southern Medical University, Guangzhou, Guangdong, 510515, ChinaDepartment of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China; Key laboratory of bone and cartilage regeneration medicine, Southern Medical University, Guangzhou, Guangdong, 510515, ChinaDepartment of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China; Key laboratory of bone and cartilage regeneration medicine, Southern Medical University, Guangzhou, Guangdong, 510515, China; Corresponding author. Department of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China.Department of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China; Key laboratory of bone and cartilage regeneration medicine, Southern Medical University, Guangzhou, Guangdong, 510515, China; Corresponding author. Department of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China.Department of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China; Key laboratory of bone and cartilage regeneration medicine, Southern Medical University, Guangzhou, Guangdong, 510515, China; Corresponding author. Department of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China.Objective: Heterotopic ossification (HO) refers to the abnormal development of bone in soft tissue rather than within bone itself. Previous research has shown that sensory nerve prostaglandin E2 receptor 4 (EP4) signaling not only governs pain perception but also influences bone formation. However, the relationship between sensory nerve EP4 and the pathogenesis of HO in the Achilles tendon remains unclear. This study aims to investigate this relationship and the underlying mechanisms. Methods: We generated sensory nerve EP4-specific knockout mice, with the genotype of Avil-CreEP4fl/fl, was propagated. Transcriptome sequencing and bioinformatics analysis techniques were used to identify the potential molecular pathways involving with sensory nerve EP4. Additionally, a neurectomy mouse model was created by transecting the sciatic nerve transection, to examine the effects and mechanisms of peripheral innervation on HO in vivo. Micro-CT, immunofluorescence (IF), Hematoxylin and Eosin (H&E) Staining, Safranin O-Fast Green staining and western blotting were used to analyze changes in cellular and tissue components. Results: We here observed an increase in sensory nerve EP4 and H-type vessels during the pathogenesis of HO in both human subjects and mice. Proximal neurectomy through sciatic nerve transection or the targeted knockout of EP4 in sensory nerves hindered angiogenesis-dependent bone formation and the development of HO at the traumatic site of the Achilles tendon. Furthermore, we identified the Efnb2 (Ephrin-B2)/Dll4 (Delta-like ligand 4) axis as a potential downstream element influenced by sensory nerve EP4 in the regulation of HO. Notably, administration of an EP4 inhibitor demonstrated the ability to alleviate HO. Based on these findings, sensory nerve EP4 emerges as an innovative and promising approach for managing HO. Conclusion: Our findings demonstrate that the sensory nerve EP4 promotes ectopic bone formation by modulating angiogenesis-associated osteogenesis during HO. The translational potential of this article: Our results provide a mechanistic rationale for targeting sensory nerve EP4 as a promising candidate for HO therapy.http://www.sciencedirect.com/science/article/pii/S2214031X24001219AngiogenesisEfnb2EP4Heterotopic ossificationSensory nerve
spellingShingle Rongmin Lin
Hancheng Lin
Chencheng Zhu
Jieming Zeng
Jiahui Hou
Ting Xu
Yihui Tan
Xuyou Zhou
Yuan Ma
Mankai Yang
Kuanhai Wei
Bin Yu
Hangtian Wu
Zhuang Cui
Sensory nerve EP4 facilitates heterotopic ossification by regulating angiogenesis-coupled bone formation
Journal of Orthopaedic Translation
Angiogenesis
Efnb2
EP4
Heterotopic ossification
Sensory nerve
title Sensory nerve EP4 facilitates heterotopic ossification by regulating angiogenesis-coupled bone formation
title_full Sensory nerve EP4 facilitates heterotopic ossification by regulating angiogenesis-coupled bone formation
title_fullStr Sensory nerve EP4 facilitates heterotopic ossification by regulating angiogenesis-coupled bone formation
title_full_unstemmed Sensory nerve EP4 facilitates heterotopic ossification by regulating angiogenesis-coupled bone formation
title_short Sensory nerve EP4 facilitates heterotopic ossification by regulating angiogenesis-coupled bone formation
title_sort sensory nerve ep4 facilitates heterotopic ossification by regulating angiogenesis coupled bone formation
topic Angiogenesis
Efnb2
EP4
Heterotopic ossification
Sensory nerve
url http://www.sciencedirect.com/science/article/pii/S2214031X24001219
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