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微管稳定通过激活Hippo-YAP信号通路促进髓核细胞中Ⅱ型胶原蛋白的合成。

Microtubule stabilization promotes the synthesis of type 2 collagen in nucleus pulposus cell by activating hippo-yap pathway.

作者信息

Zhang Xin, Shu Shibin, Feng Zhenhua, Qiu Yong, Bao Hongda, Zhu Zezhang

机构信息

Division of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China.

出版信息

Front Pharmacol. 2023 Jan 26;14:1102318. doi: 10.3389/fphar.2023.1102318. eCollection 2023.


DOI:10.3389/fphar.2023.1102318
PMID:36778003
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9909034/
Abstract

Intervertebral disc degeneration (IDD) is the cardinal pathological mechanism that underlies low back pain. Mechanical stress of the intervertebral disc may result in a change in nucleus pulposus cells state, matrix degradation, and degeneration of the disc. Microtubules, which are components of the cytoskeleton, are involved in driving or regulating signal pathways, which sense and transmit mechano-transduction. Microtubule and the related proteins play an important role in the development of many diseases, while little is known about the role of microtubules in nucleus pulposus cells. Researchers have found that type II collagen (COL2) expression is promoted by microtubule stabilization in synovial mesenchymal stem cells. In this study, we demonstrated that microtubule stabilization promotes the expression of COL2 in nucleus pulposus cells. Stabilized microtubules stimulating Hippo signaling pathway, inhibiting YAP protein expression and activity. In addition, microtubules stabilization promotes the expression of COL2 and alleviates disc degeneration in rats. In summary, our study for the first time, identifies microtubule as a promising therapeutic target for IDD, up-regulating the synthesis of COL2 Hippo-Yap pathway. Our findings may provide new insights into the etiologies and pathology for IDD, further, targeting of microtubule acetylation may be an effective strategy for the treatment of IDD.

摘要

椎间盘退变(IDD)是下腰痛的主要病理机制。椎间盘的机械应力可能导致髓核细胞状态改变、基质降解以及椎间盘退变。微管作为细胞骨架的组成部分,参与驱动或调节感知和传递机械转导的信号通路。微管及其相关蛋白在许多疾病的发展中起重要作用,而关于微管在髓核细胞中的作用知之甚少。研究人员发现,微管稳定可促进滑膜间充质干细胞中II型胶原蛋白(COL2)的表达。在本研究中,我们证明微管稳定可促进髓核细胞中COL2的表达。稳定的微管刺激Hippo信号通路,抑制YAP蛋白的表达和活性。此外,微管稳定可促进COL2的表达并减轻大鼠椎间盘退变。总之,我们的研究首次确定微管是IDD的一个有前景的治疗靶点,可通过上调COL2的合成调节Hippo-Yap通路。我们的发现可能为IDD的病因和病理提供新的见解,此外,靶向微管乙酰化可能是治疗IDD的有效策略。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bfa/9909034/034aa871a694/fphar-14-1102318-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bfa/9909034/71751af96ee8/fphar-14-1102318-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bfa/9909034/3669ed42c9c2/fphar-14-1102318-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bfa/9909034/01f4aa2a3c01/fphar-14-1102318-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bfa/9909034/a20ccc72f338/fphar-14-1102318-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bfa/9909034/56aefdec0003/fphar-14-1102318-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bfa/9909034/be34a6eee50a/fphar-14-1102318-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bfa/9909034/4b95b3379d2d/fphar-14-1102318-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bfa/9909034/034aa871a694/fphar-14-1102318-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bfa/9909034/71751af96ee8/fphar-14-1102318-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bfa/9909034/3669ed42c9c2/fphar-14-1102318-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bfa/9909034/01f4aa2a3c01/fphar-14-1102318-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bfa/9909034/a20ccc72f338/fphar-14-1102318-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bfa/9909034/56aefdec0003/fphar-14-1102318-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bfa/9909034/be34a6eee50a/fphar-14-1102318-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bfa/9909034/4b95b3379d2d/fphar-14-1102318-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bfa/9909034/034aa871a694/fphar-14-1102318-g008.jpg

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引用本文的文献

[1]
STMN1-IGFBP5 axis induces senescence and extracellular matrix degradation in nucleus pulposus cells: In vivo and in vitro insights.

Mol Med. 2025-5-3

[2]
Transient activation of YAP/TAZ confers resistance to morusin-induced apoptosis.

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[3]
The Role of Microvascular Variations in the Process of Intervertebral Disk Degeneration and Its Regulatory Mechanisms: A Literature Review.

Orthop Surg. 2024-11

[4]
How to enhance the ability of mesenchymal stem cells to alleviate intervertebral disc degeneration.

World J Stem Cells. 2023-11-26

本文引用的文献

[1]
YAP1 controls degeneration of human cartilage chondrocytes in response to mechanical tension.

Cell Biol Int. 2022-10

[2]
Microtubule Stabilization Enhances the Chondrogenesis of Synovial Mesenchymal Stem Cells.

Front Cell Dev Biol. 2021-10-20

[3]
The hippo pathway orchestrates cytoskeletal organisation during intervertebral disc degeneration.

Acta Histochem. 2021-9

[4]
Regulation of microtubule dynamics, mechanics and function through the growing tip.

Nat Rev Mol Cell Biol. 2021-12

[5]
Suppression of Patronin deficiency by altered Hippo signaling in Drosophila organ development.

Cell Death Differ. 2021-1

[6]
Ciliary IFT80 is essential for intervertebral disc development and maintenance.

FASEB J. 2020-5

[7]
Are microtubules tension sensors?

Nat Commun. 2019-5-29

[8]
Sirtuin 3-dependent mitochondrial redox homeostasis protects against AGEs-induced intervertebral disc degeneration.

Redox Biol. 2018-9-6

[9]
Microtubules and Microtubule-Associated Proteins.

Cold Spring Harb Perspect Biol. 2018-6-1

[10]
Dysregulation of YAP by the Hippo pathway is involved in intervertebral disc degeneration, cell contact inhibition, and cell senescence.

Oncotarget. 2017-12-14

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