Article
Immunology
Jiawei Xu, Jinkun Wen, Lanya Fu, Liqiang Liao, Ying Zou, Jiaqi Zhang, Junyao Deng, Haowen Zhang, Jingmin Liu, Xianghai Wang, Daming Zuo, Jiasong Guo
Summary: The depletion of RhoA in macrophages has a negative impact on Wallerian degeneration and nerve regeneration, mainly due to impaired migration and phagocytosis of macrophages resulting from disrupted RhoA/ROCK/MLCK pathway. Since previous research has shown that RhoA inhibition in neurons promotes axonal regeneration, the study highlights the importance of considering cellular specificity of RhoA-targeted drugs in future applications for treating peripheral nerve injuries.
JOURNAL OF NEUROINFLAMMATION
(2021)
Article
Neurosciences
Angela Yu-Huey Hsu, Sung-Tsang Hsieh
Summary: Dectin-1 plays a role in peripheral nerve injury, and inhibiting it can delay nerve degeneration and angiogenesis.
FRONTIERS IN CELLULAR NEUROSCIENCE
(2022)
Review
Surgery
Karla C. Maita, John P. Garcia, Francisco R. Avila, Torres-Guzman Ricardo, Olivia A. Ho, C. . S. Chini Claudia, N. Chini Eduardo, Antonio J. Forte
Summary: Aging is a factor that slows down peripheral nerve regeneration, leading to an increased failure in nerve regeneration in advanced age. Age-related changes such as chronic inflammatory state, delayed macrophages' response to injury, dysfunctional Schwann Cells (SCs), and microen-vironment alterations cause a reduction in the regenerative capability of the peripheral nervous system (PNS) in aged murine models. The interaction between macrophages and SC plays a crucial role in the nerve regeneration of aged models.
JOURNAL OF SURGICAL RESEARCH
(2023)
Review
Biochemistry & Molecular Biology
Dong Keon Yon, Yong Jun Kim, Dong Choon Park, Su Young Jung, Sung Soo Kim, Joon Hyung Yeo, Jeongmin Lee, Jae Min Lee, Seung Geun Yeo
Summary: A literature review on the role of autophagy in peripheral nerve injury and regeneration was conducted. The review identified several factors, such as LC3II/I, PI3K, mTOR, Beclin-1, ATG3, ATG5, ATG7, ATG9, and ATG12, that are involved in the process of nerve degeneration and regeneration.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Biotechnology & Applied Microbiology
Sulong Wang, Xilin Liu, Yueshu Wang
Summary: Peripheral nerve injury (PNI) is a common disease that leads to slow tissue regeneration and loss of nerve function. Platelet-rich plasma (PRP), a bioactive substance, can accelerate tissue regeneration by releasing growth factors. PRP has wide clinical applications and shows potential for peripheral nerve regeneration.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Cell Biology
Yu-Mei Feng, Jian Shao, Min Cai, Yi-Yue Zhou, Yi Yao, Jia-Xi Qian, Zi-Han Ding, Mao-Rong Jiang, Deng-Bing Yao
Summary: Our previous studies have shown that lncRNA H19 is upregulated in injured rat sciatic nerve during Wallerian degeneration and affects neural repair and regeneration. In this study, we disrupted or overexpressed lncRNA H19 in rats and found that its overexpression inhibited axon growth but enhanced myelination. Gait and pain analysis revealed that lncRNA H19 overexpression delayed functional recovery, while interfering with its expression improved recovery.
NEURAL REGENERATION RESEARCH
(2023)
Article
Cell Biology
Xiao-Qing Cheng, Wen-Jing Xu, Xiao Ding, Gong-Hai Han, Shuai Wei, Ping Liu, Hao-Ye Meng, Ai-Jia Shang, Yu Wang, Ai-Yuan Wang
Summary: This study investigated the dynamic expression of cytokines in the distal nerve stumps after peripheral nerve injury using protein microarray analysis, revealing distinct patterns between proximal and distal nerve stumps. Distal stumps showed increased expression of interleukins and proteins related to inflammatory and apoptotic responses, while proximal stumps mainly upregulated growth factors. The findings suggest potential therapeutic targets and may advance clinical treatments for peripheral nerve injury.
NEURAL REGENERATION RESEARCH
(2021)
Article
Multidisciplinary Sciences
Hung-Ju Chen, Jowy Tani, Cindy Shin-Yi Lin, Tsui-San Chang, Yi-Chen Lin, Ting-Wei Hsu, Jia-Ying Sung
Summary: This study investigated the changes in peripheral axonal excitability in ischemic stroke patients with hemiparesis or hemiplegia. The results showed that upper motor neuron injury after stroke can alter nerve excitability in lower motor neurons, with more obvious changes in severely affected limbs. Further investigation is necessary to explore the downstream effects of upper motor neuron insult in the peripheral nerve system.
Article
Neurosciences
Xiangling Li, Tieyuan Zhang, Chaochao Li, Wenjing Xu, Yanjun Guan, Xiaoya Li, Haofeng Cheng, Shengfeng Chen, Boyao Yang, Yuli Liu, Zhiqi Ren, Xiangyu Song, Zhibo Jia, Yu Wang, Jinshu Tang
Summary: Low-frequency electrical stimulation (ES) promotes nerve regeneration by accelerating Wallerian degeneration (WD) and upregulating the expression of neurotrophic factors, leading to accelerated early axonal and vascular regeneration while delaying muscle atrophy.
Article
Neurosciences
Yi Wang, Nannan Gao, Yumei Feng, Min Cai, Yuting Li, Xi Xu, Huanhuan Zhang, Dengbing Yao
Summary: This study investigates the role of Prkcq in regulating nerve degeneration and regeneration, with findings showing that modulation of Prkcq expression can affect the function of Schwann cells and related signaling pathways. The results provide insights into the molecular mechanisms involved in Prkcq-mediated processes during peripheral nerve repair.
EXPERIMENTAL NEUROLOGY
(2021)
Article
Neurosciences
Jingmin Liu, Xinrui Ma, Xiaofang Hu, Jinkun Wen, Haowen Zhang, Jiawei Xu, Ye He, Xianghai Wang, Jiasong Guo
Summary: Our study found that RhoA knockdown or inhibition can alleviate the proliferation, migration, and differentiation of Schwann cells. In this study, we developed two lines of conditional RhoA knockout (cKO) mice to investigate the role of RhoA in Schwann cells during nerve injury and repair. Our results indicate that RhoA cKO in Schwann cells can accelerate axonal regrowth and remyelination after sciatic nerve injury, promoting the recovery of nerve conduction and hindlimb gait. Mechanistic studies revealed that RhoA cKO facilitates Schwann cell dedifferentiation via the JNK pathway, subsequently promoting Wallerian degeneration and stimulating the production of neurotrophins.
Review
Immunology
Zeina Msheik, Mohamed El Massry, Amandine Rovini, Fabrice Billet, Alexis Desmouliere
Summary: This review summarizes the latest knowledge about the origin, function, tissue identity, and interaction with reactive oxygen species of macrophages in the peripheral nervous system. It discusses their role in the process of Wallerian degeneration, including axon degeneration, Schwann cell activation, and recruitment of macrophages to the site of injury. Finally, it explores the involvement of macrophages in peripheral neuropathies caused by external and internal insults to peripheral nerves, and the potential benefits of targeting specific macrophages for the alleviation of functional defects in the PNS.
JOURNAL OF NEUROINFLAMMATION
(2022)
Review
Immunology
George D. Bittner, Jared S. Bushman, Cameron L. Ghergherehchi, Kelly C. S. Roballo, Jaimie T. Shores, Tyler A. Smith
Summary: Peripheral nerve injuries are the most common type of nervous system injuries, and segmental-loss PNIs have a poor prognosis. Conventional treatment methods have limited progress, but recent advances using viable PNAs have shown potential for functional recovery.
JOURNAL OF NEUROINFLAMMATION
(2022)
Article
Biology
Xiao-Feng Zhao, Lucas D. Huffman, Hannah Hafner, Mitre Athaiya, Matthew C. Finneran, Ashley L. Kalinski, Rafi Kohen, Corey Flynn, Ryan Passino, Craig N. Johnson, David Kohrman, Riki Kawaguchi, Lynda J. S. Yang, Jeffery L. Twiss, Daniel H. Geschwind, Gabriel Corfas, Roman J. Giger
Summary: This study performed single-cell analysis to investigate the pathological changes following nerve injury in mice. It was found that macrophages rapidly accumulated at the site of nerve injury and underwent metabolic reprogramming. The blood-nerve barrier showed partial leakiness, resulting in proliferation of stromal cells and entry of serum proteins. Distinct immune compartments were identified in response to mechanical nerve injury and Wallerian degeneration. Delayed Wallerian degeneration affected the distribution of immune cells in both the injured nerve and the distal nerve.
Article
Engineering, Biomedical
Lei Han, Xianzhen Dong, Tong Qiu, Zhaona Dou, Lin Wu, Honglian Dai
Summary: This study investigates the promotion of nerve regeneration through the use of a functional electrospinning scaffold with iron chelating ability. The results demonstrate that the scaffold can alleviate oxidative stress caused by iron overload and improve cell apoptosis, indicating its potential for therapeutic applications.
MATERIALS TODAY BIO
(2022)
Article
Immunology
A. Uzawa, M. Mori, H. Masuda, R. Ohtani, T. Uchida, R. Aoki, S. Kuwabara
CLINICAL AND EXPERIMENTAL IMMUNOLOGY
(2020)
Article
Immunology
A. Uzawa, Y. Kojima, Y. Ozawa, M. Yasuda, Y. Onishi, H. Akamine, N. Kawaguchi, K. Himuro, S. Kuwabara
CLINICAL AND EXPERIMENTAL IMMUNOLOGY
(2020)
Article
Geriatrics & Gerontology
Ryoichi Nakamura, Genki Tohnai, Naoki Atsuta, Masahiro Nakatochi, Naoki Hayashi, Hazuki Watanabe, Daichi Yokoi, Hirohisa Watanabe, Masahisa Katsuno, Yuishin Izumi, Akira Taniguchi, Kazuaki Kanai, Mitsuya Morita, Osamu Kano, Satoshi Kuwabara, Masaya Oda, Koji Abe, Masashi Aoki, Ikuko Aiba, Koichi Okamoto, Kouichi Mizoguchi, Nobutaka Hattori, Kenji Nakashima, Ryuji Kaji, Gen Sobue
Summary: Two recent genetic studies found that loss-of-function mutation of the C-terminal cargo-binding tail domain of the KIF5A gene cause amyotrophic lateral sclerosis (ALS). This study in Japanese patients with sporadic ALS identified a novel loss-of-function variant in KIF5A, highlighting its rare occurrence as a cause of ALS.
NEUROBIOLOGY OF AGING
(2021)
Editorial Material
Clinical Neurology
Satoshi Kuwabara, Tomoki Suichi, Sonoko Misawa
JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
(2021)
Editorial Material
Clinical Neurology
Akiyuki Uzawa, Masahiro Mori, Satoshi Kuwabara
JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
(2021)
Review
Clinical Neurology
Felix Kohle, Satoshi Kuwabara, Helmar Christoph Lehmann
Summary: Pregnancy can trigger typical CIDP in some women, and women with CIDP have a higher risk of relapse during pregnancy. The onset or relapse of CIDP during pregnancy is a rare but challenging constellation for physicians.
JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
(2021)
Article
Clinical Neurology
Kazuo Sugimoto, Masahiro Mori, Jia Liu, Kazutomo Shibuya, Sagiri Isose, Mizuho Koide, Takaki Hiwasa, Satoshi Kuwabara
Summary: Novel biomarkers were identified in ALS patients using the SEREX method, with beta-actin (ACTB) showing significantly higher serum levels in ALS patients compared to normal controls and Parkinson disease patients. Anti-ACTB antibody levels were associated with disease severity and progression in ALS patients, suggesting their potential as a biomarker for ALS.
AMYOTROPHIC LATERAL SCLEROSIS AND FRONTOTEMPORAL DEGENERATION
(2021)
Article
Clinical Neurology
Hiroki Masuda, Masahiro Mori, Shigeki Hirano, Akiyuki Uzawa, Tomohiko Uchida, Mayumi Muto, Ryohei Ohtani, Reiji Aoki, Satoshi Kuwabara
Summary: The research found that patients with NMOSD were older and had a higher disability status score at baseline MRI compared to those with MS. There were no significant differences in disease duration, annual relapse rate, and intervals from the last attack and from disease-modifying drugs initiation between the two groups.
JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
(2022)
Article
Clinical Neurology
Christine Verboon, Thomas Harbo, David R. Cornblath, Richard A. C. Hughes, Pieter A. van Doorn, Michael P. Lunn, Kenneth C. Gorson, Fabio Barroso, Satoshi Kuwabara, Giuliana Galassi, Helmar C. Lehmann, Susumu Kusunoki, Ricardo C. Reisin, Davide Binda, Guido Cavaletti, Bart C. Jacobs
Summary: In patients with mild GBS, treatment with one course of IVIg did not improve the disease course overall. Despite some benefits such as shorter time to regain muscle strength, residual symptoms were often present after one year, indicating the need for better treatments for mild GBS.
JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
(2021)
Editorial Material
Clinical Neurology
Hiroki Masuda, Masahiro Mori, Satoshi Kuwabara
JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
(2021)
Article
Immunology
Manato Yasuda, Akiyuki Uzawa, Yukiko Ozawa, Yuta Kojima, Yosuke Onishi, Hiroyuki Akamine, Satoshi Kuwabara
Summary: A retrospective study comparing IA and IVIg treatment in 19 AChR antibody-positive generalized MG patients showed that IA was safer and more effective in improving MG-ADL scores compared to IVIg. More large prospective studies are needed to confirm these findings.
SCANDINAVIAN JOURNAL OF IMMUNOLOGY
(2022)
Editorial Material
Clinical Neurology
Atsuhiko Sugiyama, Satoshi Kuwabara
JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
(2022)
Editorial Material
Clinical Neurology
Satoshi Kuwabara, Tomoki Suichi
JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
(2022)
Article
Clinical Neurology
Akiyuki Uzawa, Shigeaki Suzuki, Satoshi Kuwabara, Hiroyuki Akamine, Yosuke Onishi, Manato Yasuda, Yukiko Ozawa, Naoki Kawaguchi, Tomoya Kubota, Masanori P. Takahashi, Yasushi Suzuki, Genya Watanabe, Takashi Kimura, Takamichi Sugimoto, Makoto Samukawa, Naoya Minami, Masayuki Masuda, Shingo Konno, Yuriko Nagane, Kimiaki Utsugisawa
Summary: Early fast-acting treatment (EFT), including plasmapheresis, intravenous immunoglobulin and/or intravenous high-dose methylprednisolone (IVMP), is beneficial for achieving minimal manifestations (MM) or <= 5 mg/day prednisolone (MM5mg) in patients with myasthenia gravis (MG). This study aimed to identify the effective EFT regimen and patient characteristics. The results showed that EFT was effective for all types of MG, and the inclusion of IVMP and early use of calcineurin inhibitors promoted the achievement of MM5mg.
JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
(2023)
Article
Clinical Neurology
Hiroaki Yoshikawa, Yumi Adachi, Yosikazu Nakamura, Nagato Kuriyama, Hiroyuki Murai, Yoshiko Nomura, Yasunari Sakai, Kazuo Iwasa, Yutaka Furukawa, Satoshi Kuwabara, Makoto Matsui
Summary: This study is the first nationwide epidemiological survey of Lambert-Eaton myasthenic syndrome (LEMS) in Japan. The results show that the prevalence of LEMS in Japan is similar to that in other countries. A significant proportion of LEMS patients have associated tumors, with a predominance of men in tumor-associated LEMS (paraneoplastic LEMS, P-LEMS), and women in LEMS without tumors (a primary autoimmune form of LEMS, AI-LEMS).
BMJ NEUROLOGY OPEN
(2022)