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Ding Z, Jiang M, Qian J, Gu D, Bai H, Cai M, Yao D. Role of transforming growth factor-β in peripheral nerve regeneration. Neural Regen Res 2024; 19:380-386. [PMID: 37488894 PMCID: PMC10503632 DOI: 10.4103/1673-5374.377588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/29/2023] [Accepted: 04/27/2023] [Indexed: 07/26/2023] Open
Abstract
Injuries caused by trauma and neurodegenerative diseases can damage the peripheral nervous system and cause functional deficits. Unlike in the central nervous system, damaged axons in peripheral nerves can be induced to regenerate in response to intrinsic cues after reprogramming or in a growth-promoting microenvironment created by Schwann cells. However, axon regeneration and repair do not automatically result in the restoration of function, which is the ultimate therapeutic goal but also a major clinical challenge. Transforming growth factor (TGF) is a multifunctional cytokine that regulates various biological processes including tissue repair, embryo development, and cell growth and differentiation. There is accumulating evidence that TGF-β family proteins participate in peripheral nerve repair through various factors and signaling pathways by regulating the growth and transformation of Schwann cells; recruiting specific immune cells; controlling the permeability of the blood-nerve barrier, thereby stimulating axon growth; and inhibiting remyelination of regenerated axons. TGF-β has been applied to the treatment of peripheral nerve injury in animal models. In this context, we review the functions of TGF-β in peripheral nerve regeneration and potential clinical applications.
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Affiliation(s)
- Zihan Ding
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Maorong Jiang
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Jiaxi Qian
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Dandan Gu
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Huiyuan Bai
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Min Cai
- Medical School of Nantong University, Nantong, Jiangsu Province, China
| | - Dengbing Yao
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
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Arabzadeh E, Reza Rahimi A, Zargani M, Feyz Simorghi Z, Emami S, Sheikhi S, Zaeri Amirani Z, Yousefi P, Sarshin A, Aghaei F, Feizollahi F. Resistance exercise promotes functional test via sciatic nerve regeneration, and muscle atrophy improvement through GAP-43 regulation in animal model of traumatic nerve injuries. Neurosci Lett 2022; 787:136812. [PMID: 35872241 DOI: 10.1016/j.neulet.2022.136812] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 07/12/2022] [Accepted: 07/19/2022] [Indexed: 11/30/2022]
Abstract
Resistance training improves muscle strength through a combination of neural plasticity and muscle hypertrophy. This study aimed to evaluate the effects of resistance exercise on sciatic nerve regeneration and histology, growth-associated protein 43 (GAP-43) expressions, and soleus muscle atrophy following traumatic nerve injuries in Wistar rats. In the present study, 40 male Wistar rats were randomly assigned into four groups: healthy control (HC) as a sham group was exposed to the surgical procedures without any sciatic nerve compression, lesioned control (LC), resistance training (RT,non-lesioned), and lesioned rats+RT (LRT) (n=10 in each). The RT group performed a resistance-training program 5 days/week for 4 weeks. Sciatic functional index (SFI) score, beam score and Basso, Beattie, and Bresnahan (BBB) score decreased and the hot plate time increased significantly in the LC group compared to the HC (p<0.05) group. However, the LRT group showed a significant increase in the SFI score (p=0.001) and a significant decrease in hot plate time (p=0.0232) compared to the LC group. The LC group also showed neurological morphological damage and muscle atrophy and a decrease in GAP-43 in nerve tissue. In comparison to the LC group, a significant increase in sciatic nerve caliber, diameter, number of muscle fibers, and the expression of GAP-43 (p<0.05) was observed in the LRT group. Doing resistance training even for four weeks seems to affect sciatic nerve lesions and injuries. It can also repair and regenerate nerve tissue by upregulating GAP-43 expression, improving motor behavioral tests, and controlling muscle atrophy.
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Affiliation(s)
- Ehsan Arabzadeh
- Exercise Physiology Research Center, Life Style Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Ali Reza Rahimi
- Department of Exercise Physiology, Islamic Azad University, Karaj Branch, Karaj, Alborz, Iran
| | - Mehdi Zargani
- Department of Exercise Physiology, Islamic Azad University, Karaj Branch, Karaj, Alborz, Iran
| | - Zeinab Feyz Simorghi
- Department of Exercise Physiology, Islamic Azad University, Karaj Branch, Karaj, Alborz, Iran
| | - Shaghayegh Emami
- Department of Exercise Physiology, Islamic Azad University, Karaj Branch, Karaj, Alborz, Iran
| | - Sahar Sheikhi
- Department of Exercise Physiology, Islamic Azad University, Karaj Branch, Karaj, Alborz, Iran
| | - Zeinab Zaeri Amirani
- Department of Exercise Physiology, Islamic Azad University, Karaj Branch, Karaj, Alborz, Iran
| | - Parisa Yousefi
- Department of Exercise Physiology, Islamic Azad University, Karaj Branch, Karaj, Alborz, Iran
| | - Amir Sarshin
- Clinical Care and Health Promotion Research Center, Karaj branch, Islamic Azad University, Karaj, Iran
| | - Fariba Aghaei
- Clinical Care and Health Promotion Research Center, Karaj branch, Islamic Azad University, Karaj, Iran
| | - Foad Feizollahi
- Clinical Care and Health Promotion Research Center, Karaj branch, Islamic Azad University, Karaj, Iran.
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Zhang N, Lin J, Chin JS, Wiraja C, Xu C, McGrouther DA, Chew SY. Delivery of Wnt inhibitor WIF1 via engineered polymeric microspheres promotes nerve regeneration after sciatic nerve crush. J Tissue Eng 2022; 13:20417314221087417. [PMID: 35422984 PMCID: PMC9003641 DOI: 10.1177/20417314221087417] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 02/27/2022] [Indexed: 01/09/2023] Open
Abstract
Injuries within the peripheral nervous system (PNS) lead to sensory and motor deficits, as well as neuropathic pain, which strongly impair the life quality of patients. Although most current PNS injury treatment approaches focus on using growth factors/small molecules to stimulate the regrowth of the injured nerves, these methods neglect another important factor that strongly hinders axon regeneration-the presence of axonal inhibitory molecules. Therefore, this work sought to explore the potential of pathway inhibition in promoting sciatic nerve regeneration. Additionally, the therapeutic window for using pathway inhibitors was uncovered so as to achieve the desired regeneration outcomes. Specifically, we explored the role of Wnt signaling inhibition on PNS regeneration by delivering Wnt inhibitors, sFRP2 and WIF1, after sciatic nerve transection and sciatic nerve crush injuries. Our results demonstrate that WIF1 promoted nerve regeneration (p < 0.05) after sciatic nerve crush injury. More importantly, we revealed the therapeutic window for the treatment of Wnt inhibitors, which is 1 week post sciatic nerve crush when the non-canonical receptor tyrosine kinase (Ryk) is significantly upregulated.
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Affiliation(s)
- Na Zhang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
| | - Junquan Lin
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
| | - Jiah Shin Chin
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
- NTU Institute for Health Technologies, Interdisciplinary Graduate School, Nanyang Technological University, Singapore, Singapore
| | - Christian Wiraja
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
| | - Chenjie Xu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, China
| | - Duncan Angus McGrouther
- Department of Hand and Reconstructive Microsurgery, Singapore General Hospital, Singapore, Singapore
| | - Sing Yian Chew
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
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Zhang RR, Chen SL, Cheng ZC, Shen YY, Yi S, Xu H. Characteristics of cytokines in the sciatic nerve stumps and DRGs after rat sciatic nerve crush injury. Mil Med Res 2020; 7:57. [PMID: 33225981 PMCID: PMC7682062 DOI: 10.1186/s40779-020-00286-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 11/06/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Cytokines are essential cellular modulators of various physiological and pathological activities, including peripheral nerve repair and regeneration. However, the molecular changes of these cellular mediators after peripheral nerve injury are still unclear. This study aimed to identify cytokines critical for the regenerative process of injured peripheral nerves. METHODS The sequencing data of the injured nerve stumps and the dorsal root ganglia (DRGs) of Sprague-Dawley (SD) rats subjected to sciatic nerve (SN) crush injury were analyzed to determine the expression patterns of genes coding for cytokines. PCR was used to validate the accuracy of the sequencing data. RESULTS A total of 46, 52, and 54 upstream cytokines were differentially expressed in the SNs at 1 day, 4 days, and 7 days after nerve injury. A total of 25, 28, and 34 upstream cytokines were differentially expressed in the DRGs at these time points. The expression patterns of some essential upstream cytokines are displayed in a heatmap and were validated by PCR. Bioinformatic analysis of these differentially expressed upstream cytokines after nerve injury demonstrated that inflammatory and immune responses were significantly involved. CONCLUSIONS In summary, these findings provide an overview of the dynamic changes in cytokines in the SNs and DRGs at different time points after nerve crush injury in rats, elucidate the biological processes of differentially expressed cytokines, especially the important roles in inflammatory and immune responses after peripheral nerve injury, and thus might contribute to the identification of potential treatments for peripheral nerve repair and regeneration.
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Affiliation(s)
- Rui-Rui Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Sai-Ling Chen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Zhang-Chun Cheng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu Province, China.,College of Medicine, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Yin-Ying Shen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Sheng Yi
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu Province, China.
| | - Hui Xu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu Province, China.
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Xu X, Shan S, Wang W, Liu H. Analysis of the Components in Moxa Smoke by GC-MS and Preliminary Discussion on Its Toxicity and Side Effects. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2020; 2020:2648759. [PMID: 33178311 PMCID: PMC7648687 DOI: 10.1155/2020/2648759] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 09/21/2020] [Accepted: 10/01/2020] [Indexed: 02/06/2023]
Abstract
Moxibustion plays an important role in the prevention and treatment of diseases and the promotion of human health. In this study, the components in moxa smoke from Jiangxi Poai Biotechnology Co., Ltd., namely, Qing moxa sticks, were absorbed by five solvents (cyclohexane, ethyl acetate, n-butanol, anhydrous ethanol, and water) and identified by gas chromatography-mass spectrometry. The identification results of the smoke from the Qing moxa sticks that was absorbed in liquid are as follows: a total of 294 compounds were identified, including 139 in cyclohexane, 145 in ethyl acetate, 60 in n-butanol, 89 in anhydrous ethanol, and 77 in water, and of those, 112 toxic compounds were identified. Furthermore, Ingenuity Pathway Analysis software and the PubChem database were successfully applied to analyze the toxic compounds. There were 812 target proteins related to the toxic components, 25 molecular networks, and 54 biological pathways. The results showed that the toxic compounds of moxa smoke may have some side effects on the heart, liver, and kidney of humans. This study revealed that the components of moxa smoke are complex and diverse. Due to the findings of toxic compounds in moxa smoke, we recommend that moxibustion rooms should be equipped with ventilation equipment or enough artificial ventilation to ensure the health of patients and practitioners.
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Affiliation(s)
- Xiaoyu Xu
- Jiangxi Province Key Laboratory of TCM Etiopathogenisis, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, China
- Research Center for Differentiation and Development of TCM Basic Theory, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, China
| | - Si Shan
- Jiangxi Province Key Laboratory of TCM Etiopathogenisis, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, China
- Research Center for Differentiation and Development of TCM Basic Theory, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, China
| | - Wenlei Wang
- Jiangxi Province Key Laboratory of TCM Etiopathogenisis, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, China
- Research Center for Differentiation and Development of TCM Basic Theory, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, China
| | - Hongning Liu
- Jiangxi Province Key Laboratory of TCM Etiopathogenisis, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, China
- Research Center for Differentiation and Development of TCM Basic Theory, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, China
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