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Regenerative potential of platelet derived growth factor in nicotine induced intervertebral disc degenerative model - In vivo study

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单位: [1]Department of Orthopaedic Surgery, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan 030032, China [2]Department of Orthopaedic Surgery, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan 030032, China [3]Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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关键词: Nicotine Platelet derived growth factor Intervertebral disc Nucleus pulposus Calcium deposition Cartilage regeneration

摘要:
Intervertebral disc (IVD) degeneration is an age-related disease affecting the elderly population worldwide. The disease is contributed by degeneration of the cartilage tissue in the vertebral column. The current study explores the possibility of exploiting platelet derived growth factor (PDGF), a growth factor secreted by platelets, as a therapeutic agent against the IVD degeneration. BALB/c mice were exposed to nicotine at higher concentrations to induce IVD degeneration. Three different concentrations of PDGF (1 ng/mL, 2 ng/mL, 3 ng/mL) were used in the study. Oxidative stress parameters were assessed through Lipid peroxidation (LPO), Myeloperoxidase (MPO) and Nitric oxide (NO). Histopathology was done for assessing the extent of degeneration, collagen II, mucin, and calcium deposition by Haematoxylin and Eosin staining, immunohistochemistry, Alcian blue and Alizarin red staining respectively. Gene expression studies were carried out by quantitative real-time Polymerase chain reaction (RT-PCR) for Aggrecan, alkaline phosphatase, RUNX2, Collagen I alpha and osteocalcin. IVD degeneration was prominent and PDGF treatment restored the tissue as evidenced by H&E staining. Oxidative stress was induced by the nicotine treatment and all the biomarkers of oxidative stress were restored back to normal by PDGF in a dose dependent manner. Biomarkers of endochondral bone formation (aggrecan, alkaline phosphatase, RUNX2, Collagen I alpha and osteocalcin) was observed to be normalized by exposing to PDGF in mRNA level though RT-PCR. Mucin, calcium contents were also brought back to normal by PDGF treatment. In conclusion, current work strongly supports that PDGF could be used as a therapeutic agent for the treatment of IVD degeneration.

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出版当年[2023]版:
大类 | 2 区 化学
小类 | 2 区 化学:综合
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大类 | 2 区 化学
小类 | 2 区 化学:综合
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出版当年[2022]版:
Q2 CHEMISTRY, MULTIDISCIPLINARY
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Q2 CHEMISTRY, MULTIDISCIPLINARY

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第一作者单位: [1]Department of Orthopaedic Surgery, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan 030032, China
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