Cited by 55Bone Metabolism and DiseasesRedox biology and oxidative stressCell death mechanisms and regulation

Advanced oxidation protein products induce pre‐osteoblast apoptosis through a nicotinamide adenine dinucleotide phosphate oxidase‐dependent, mitogen‐activated protein kinases‐mediated intrinsic apoptosis pathway

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Zhu, Si‐Yuan, Zhuang, Jing‐Shen, Wu, Qian, Liu, Zhong‐Yuan, Liao, Cong‐Rui, Luo, Shi‐Gan, Chen, Jian‐Ting, Zhong, Zhao‐Ming·2018·Aging Cell

Abstract

Summary: Osteoblast apoptosis contributes to age‐related bone loss. Advanced oxidation protein products (AOPP s) are recognized as the markers of oxidative stress and potent inducers of apoptosis. We have demonstrated that AOPP accumulation was correlated with age‐related bone loss. However, the effect of AOPP s on the osteoblast apoptosis still remains unknown. Exposure of osteoblastic MC 3T3‐E1 cells to AOPP s caused the excessive generation of reactive oxygen species (ROS) by activating nicotinamide adenine dinucleotide phosphate (NADPH) oxidases. Increased ROS induced phosphorylation of mitogen‐activated protein kinases (MAPK s), which subsequently triggered intrinsic apoptosis pathway by inducing mitochondrial dysfunction, endoplasmic reticulum stress, and Ca 2+overload and eventually leads to apoptosis. Chronic AOPP loading in aged Sprague‐Dawley rats induced osteoblast apoptosis and activated NADPH oxidase signaling cascade, in combination with accelerated bone loss and deteriorated bone microstructure. Our study suggests that AOPP s induce osteoblast apoptosis by the NADPH oxidase‐dependent,MAPK‐mediated intrinsic apoptosis pathway.

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Authors
Zhu, S., Zhuang, J., Wu, Q., Liu, Z., Liao, C., Luo, S., Chen, J., & Zhong, Z.
Affiliations
  • Department of Spinal Surgery Nanfang Hospital Southern Medical University Guangzhou China
  • Nanfang Hospital (CN)
Corresponding author
Chen, Jian‐Ting
Venue
Aging Cell
Publisher
Wiley
Published
2018-04-16
Volume
17
Issue
4
Pages
e12764-e12764
ISSN
  • 1474-9718 (ISSN-L)
  • 1474-9726
OpenAlex
W2802971225
Cited by
55
References
43
Citations by year
2026: 5 · 2025: 9 · 2024: 8 · 2023: 6 · 2022: 6 · 2021: 8 · 2020: 8 · 2019: 4 · 2018: 1
FWCI
1.87
Type
journal article
Language
en
Open access
Locations
  • Aging Cell (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China (81472135, 81000785)
  • Natural Science Foundation of Guangdong Province (2014A030313340, 2016A030310404)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
Keywords
advanced oxidation protein products, osteoblast apoptosis, NADPH oxidase, mitogen-activated protein kinase, mitochondrial apoptosis, reactive oxygen species, mitochondrial dysfunction, endoplasmic reticulum stress, calcium overload, age-related bone loss, oxidative stress, bone microarchitecture, MC3T3-E1 cells
MeSH terms
Animals, Cells, Cultured, Male, Osteoblasts, 3T3 Cells, Rats, Sprague-Dawley, Apoptosis, NADPH Oxidases, Mitogen-Activated Protein Kinases, Mice, Rats, Advanced Oxidation Protein Products

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