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Jang MH, Song J. Adenosine and adenosine receptors in metabolic imbalance-related neurological issues. Biomed Pharmacother 2024; 177:116996. [PMID: 38897158 DOI: 10.1016/j.biopha.2024.116996] [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: 04/24/2024] [Revised: 06/08/2024] [Accepted: 06/15/2024] [Indexed: 06/21/2024] Open
Abstract
Metabolic syndromes (e.g., obesity) are characterized by insulin resistance, chronic inflammation, impaired glucose metabolism, and dyslipidemia. Recently, patients with metabolic syndromes have experienced not only metabolic problems but also neuropathological issues, including cognitive impairment. Several studies have reported blood-brain barrier (BBB) disruption and insulin resistance in the brain of patients with obesity and diabetes. Adenosine, a purine nucleoside, is known to regulate various cellular responses (e.g., the neuroinflammatory response) by binding with adenosine receptors in the central nervous system (CNS). Adenosine has four known receptors: A1R, A2AR, A2BR, and A3R. These receptors play distinct roles in various physiological and pathological processes in the brain, including endothelial cell homeostasis, insulin sensitivity, microglial activation, lipid metabolism, immune cell infiltration, and synaptic plasticity. Here, we review the recent findings on the role of adenosine receptor-mediated signaling in neuropathological issues related to metabolic imbalance. We highlight the importance of adenosine signaling in the development of therapeutic solutions for neuropathological issues in patients with metabolic syndromes.
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Affiliation(s)
- Mi-Hyeon Jang
- Department of Neurosurgery, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, United States.
| | - Juhyun Song
- Department of Anatomy, Chonnam National University Medical School, Hwasun 58128, Republic of Korea.
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2
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Zeng J, Gao WW, Yang H, Wang YN, Mei Y, Liu TT, Wang M, Tang L, Ma DC, Li W. Sodium tanshinone IIA sulfonate suppresses microglia polarization and neuroinflammation possibly via regulating miR-125b-5p/STAT3 axis to ameliorate neuropathic pain. Eur J Pharmacol 2024; 972:176523. [PMID: 38552937 DOI: 10.1016/j.ejphar.2024.176523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 03/05/2024] [Accepted: 03/21/2024] [Indexed: 04/20/2024]
Abstract
The spinal cord microglia play a pivotal role in neuroinflammation and neuropathic pain (NP). Sodium tanshinone IIA sulfonate (STS), a derivative of tanshinone IIA, has anti-inflammatory and anti-hyperalgesic effects. However, its underlying mechanism in NP remains unclear. This study aimed to investigate the effect of STS and elucidate possible mechanisms in a rat model of spared nerve injury. In vivo experiments, STS and AG490 were administered intraperitoneally once daily for 14 consecutive days after surgery. The results showed that the expression of miR-125b-5p in the spinal dorsal horn was substantially reduced, whereas signal transducer and activator of transcription 3 (STAT3) signaling was increased. After treatment with STS, the mechanical thresholds, expression of miR-125b-5p, and microglial M2 marker such as Arg-1 in the spinal cord horn increased significantly, whereas multiple pro-inflammatory cytokines and apoptosis were significantly reduced. Moreover, STAT3 pathway-related proteins and expression of the microglial M1 marker, CD68, were appreciably inhibited. In vitro, lipopolysaccharide (LPS) was used to induce an inflammatory response in BV-2 microglial cells. STS pretreatment inhibited LPS-stimulated pro-inflammatory cytokine secretion, reduced STAT3 pathway related-proteins and apoptosis, increased miR-125b-5p and proopiomelanocortin expression, and enhanced microglia transformation from M1 to M2 phenotype in BV-2 cells. These effects were reversed after the inhibition of miR-125b-5p expression in BV-2 cells. A dual-luciferase reporter assay confirmed that STAT3 binds to miR-125b-5p. In summary, these results suggest that STS exerts anti-hyperalgesic and anti-neuroinflammatory effects in rats with NP possibly via the miR-125b-5p/STAT3 axis.
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Affiliation(s)
- Jie Zeng
- Department of Pain Medicine, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China.
| | - Wei-Wei Gao
- Department of Pain Medicine, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Hao Yang
- Department of Pain Medicine, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Ya-Nang Wang
- Department of Pain Medicine, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Yang Mei
- Department of Pain Medicine, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Ting-Ting Liu
- Department of Pain Medicine, Affiliated Shapingba Hospital, Chongqing University, Chongqing, China
| | - Min Wang
- Department of Pain Medicine, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Li Tang
- Department of Pain Medicine, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Dong-Chuan Ma
- Department of Pain Medicine, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Wei Li
- Department of Pain Medicine, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China.
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3
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Hwang SM, Rahman MM, Go EJ, Kim YH, Park CK. Specific transcription factors Ascl1 and Lhx6 attenuate diabetic neuropathic pain by modulating spinal neuroinflammation and microglial activation in mice. Biomed Pharmacother 2024; 173:116392. [PMID: 38479183 DOI: 10.1016/j.biopha.2024.116392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 02/23/2024] [Accepted: 03/06/2024] [Indexed: 03/27/2024] Open
Abstract
Gamma-aminobutyric acid (GABA) neuronal system-related transcription factors (TFs) play a critical role in GABA production, and GABA modulates diabetic neuropathic pain (DNP). The present study investigated the therapeutic effects of intrathecal delivery of two TFs achaete-scute homolog 1 (Ascl1) and LIM homeobox protein 6 (Lhx6) in a mouse model of DNP and elucidated their underlying mechanisms. GABA-related specific TFs, including Ascl1, Lhx6, distal-less homeobox 1, distal-less homeobox 5, the Nkx2.1 homeobox gene, and the Nkx2.2 homeobox gene, were investigated under normal and diabetic conditions. Among these, the expression of Ascl1 and Lhx6 was significantly downregulated in mice with diabetes. Therefore, a single intrathecal injection of combined lenti-Ascl1/Lhx6 was performed. Intrathecal delivery of lenti-Ascl1/Lhx6 significantly relieved mechanical allodynia and heat hyperalgesia in mice with DNP. Ascl1/Lhx6 delivery also reduced microglial activation, decreased the levels of pro-inflammatory cytokines including tumor necrosis factor-α and interleukin (IL)-1β, increased the levels of anti-inflammatory cytokines including IL-4, IL-10, and IL-13, and reduced the activation of p38, c-Jun N-terminal kinase, and NF-κB in the spinal cord of mice with DNP, thereby reducing DNP. The results of this study suggest that intrathecal Ascl1/Lhx6 delivery attenuates DNP via upregulating spinal GABA neuronal function and inducing anti-inflammatory effects.
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Affiliation(s)
- Sung-Min Hwang
- Gachon Pain Center and Department of Physiology, Gachon University College of Medicine, Incheon 21999, Republic of Korea
| | - Md Mahbubur Rahman
- Gachon Pain Center and Department of Physiology, Gachon University College of Medicine, Incheon 21999, Republic of Korea
| | - Eun Jin Go
- Gachon Pain Center and Department of Physiology, Gachon University College of Medicine, Incheon 21999, Republic of Korea
| | - Yong Ho Kim
- Gachon Pain Center and Department of Physiology, Gachon University College of Medicine, Incheon 21999, Republic of Korea.
| | - Chul-Kyu Park
- Gachon Pain Center and Department of Physiology, Gachon University College of Medicine, Incheon 21999, Republic of Korea.
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Changkakoti L, Das JM, Borah R, Rajabalaya R, David SR, Balaraman AK, Pramanik S, Haldar PK, Bala A. Protein Kinase C (PKC)-mediated TGF-β Regulation in Diabetic Neuropathy: Emphasis on Neuro-inflammation and Allodynia. Endocr Metab Immune Disord Drug Targets 2024; 24:777-788. [PMID: 37937564 DOI: 10.2174/0118715303262824231024104849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/08/2023] [Accepted: 09/25/2023] [Indexed: 11/09/2023]
Abstract
According to the World Health Organization (WHO), diabetes has been increasing steadily over the past few decades. In developing countries, it is the cause of increased morbidity and mortality. Diabetes and its complications are associated with education, occupation, and income across all levels of socioeconomic status. Factors, such as hyperglycemia, social ignorance, lack of proper health knowledge, and late access to medical care, can worsen diabetic complications. Amongst the complications, neuropathic pain and inflammation are considered the most common causes of morbidity for common populations. This review is focused on exploring protein kinase C (PKC)-mediated TGF-946; regulation in diabetic complications with particular emphasis on allodynia. The role of PKC-triggered TGF-946; in diabetic neuropathy is not well explored. This review will provide a better understanding of the PKC-mediated TGF-946; regulation in diabetic neuropathy with several schematic illustrations. Neuroinflammation and associated hyperalgesia and allodynia during microvascular complications in diabetes are scientifically illustrated in this review. It is hoped that this review will facilitate biomedical scientists to better understand the etiology and target drugs effectively to manage diabetes and diabetic neuropathy.
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Affiliation(s)
- Liza Changkakoti
- Pharmacology and Drug Discovery Research Laboratory, Division of Life Sciences, Institute of Advanced Study in Science and Technology (IASST), An Autonomous Institute Under - Department of Science & Technology (Govt. of India) Vigyan Path, Guwahati, PIN- 781035 Assam, India
| | - Jitu Mani Das
- Pharmacology and Drug Discovery Research Laboratory, Division of Life Sciences, Institute of Advanced Study in Science and Technology (IASST), An Autonomous Institute Under - Department of Science & Technology (Govt. of India) Vigyan Path, Guwahati, PIN- 781035 Assam, India
| | - Rajiv Borah
- Department of Mechanical, Manufacturing and Biomedical Engineering, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Rajan Rajabalaya
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, BE 1410 Bandar Seri Begawan, Brunei Darussalam
| | - Sheba Rani David
- School of Pharmacology, University of Wyoming, Laramie, Wyoming, 82071, USA
| | - Ashok Kumar Balaraman
- Faculty of Pharmacy, MAHSA University, Bandar Saujana Putra, 42610, Jenjarom, Selangor, Malaysia
| | - Subrata Pramanik
- Jyoti and Bhupat Mehta School of Health Sciences & Technology, Indian Institute of Technology (IIT), Guwahati, Assam- 781039, India
| | - Pallab Kanti Haldar
- Department of Pharmaceutical Technology, Division of Pharmacology & Toxicology, Jadavpur University, Kolkata, 700032, India
| | - Asis Bala
- Pharmacology and Drug Discovery Research Laboratory, Division of Life Sciences, Institute of Advanced Study in Science and Technology (IASST), An Autonomous Institute Under - Department of Science & Technology (Govt. of India) Vigyan Path, Guwahati, PIN- 781035 Assam, India
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5
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Zhao W, Ma L, Deng D, Zhang T, Han L, Xu F, Huang S, Ding Y, Chen X. M2 macrophage polarization: a potential target in pain relief. Front Immunol 2023; 14:1243149. [PMID: 37705982 PMCID: PMC10497114 DOI: 10.3389/fimmu.2023.1243149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 08/16/2023] [Indexed: 09/15/2023] Open
Abstract
Pain imposes a significant urden on patients, affecting them physically, psychologically, and economically. Despite numerous studies on the pathogenesis of pain, its clinical management remains suboptimal, leading to the under-treatment of many pain patients. Recently, research on the role of macrophages in pain processes has been increasing, offering potential for novel therapeutic approaches. Macrophages, being indispensable immune cells in the innate immune system, exhibit remarkable diversity and plasticity. However, the majority of research has primarily focused on the contributions of M1 macrophages in promoting pain. During the late stage of tissue damage or inflammatory invasion, M1 macrophages typically transition into M2 macrophages. In recent years, growing evidence has highlighted the role of M2 macrophages in pain relief. In this review, we summarize the mechanisms involved in M2 macrophage polarization and discuss their emerging roles in pain relief. Notably, M2 macrophages appear to be key players in multiple endogenous pathways that promote pain relief. We further analyze potential pathways through which M2 macrophages may alleviate pain.
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Affiliation(s)
- Wenjing Zhao
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Anesthesiology and Resuscitation, Huazhong University of Science and Technology, Ministry of Education, Wuhan, China
| | - Lulin Ma
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Anesthesiology and Resuscitation, Huazhong University of Science and Technology, Ministry of Education, Wuhan, China
| | - Daling Deng
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Anesthesiology and Resuscitation, Huazhong University of Science and Technology, Ministry of Education, Wuhan, China
| | - Tianhao Zhang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Anesthesiology and Resuscitation, Huazhong University of Science and Technology, Ministry of Education, Wuhan, China
| | - Linlin Han
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Anesthesiology and Resuscitation, Huazhong University of Science and Technology, Ministry of Education, Wuhan, China
| | - Feng Xu
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Anesthesiology and Resuscitation, Huazhong University of Science and Technology, Ministry of Education, Wuhan, China
| | - Shiqian Huang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Anesthesiology and Resuscitation, Huazhong University of Science and Technology, Ministry of Education, Wuhan, China
| | - Yuanyuan Ding
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Anesthesiology and Resuscitation, Huazhong University of Science and Technology, Ministry of Education, Wuhan, China
| | - Xiangdong Chen
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Anesthesiology and Resuscitation, Huazhong University of Science and Technology, Ministry of Education, Wuhan, China
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Steinhoff M, Al-Khawaga S, Buddenkotte J. Itch in elderly patients: Origin, diagnostics, management. J Allergy Clin Immunol 2023; 152:42-49. [PMID: 37220840 DOI: 10.1016/j.jaci.2023.05.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 05/09/2023] [Accepted: 05/16/2023] [Indexed: 05/25/2023]
Affiliation(s)
- Martin Steinhoff
- Department of Dermatology and Venereology, Hamad Medical Corporation, Doha, Qatar; Translational Research Institute, Hamad Medical Corporation, Doha, Qatar; Dermatology Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar; Weill Cornell Medicine-Qatar, Doha, Qatar; College of Medicine, Qatar University, Doha, Qatar; College of Health and Life Sciences, Hamad-bin-Khalifa University, Doha, Qatar; Department of Dermatology, Weill Cornell Medicine, New York, NY.
| | - Sara Al-Khawaga
- Department of Dermatology and Venereology, Hamad Medical Corporation, Doha, Qatar; Translational Research Institute, Hamad Medical Corporation, Doha, Qatar; Dermatology Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar; Weill Cornell Medicine-Qatar, Doha, Qatar; College of Health and Life Sciences, Hamad-bin-Khalifa University, Doha, Qatar
| | - Joerg Buddenkotte
- Department of Dermatology and Venereology, Hamad Medical Corporation, Doha, Qatar; Translational Research Institute, Hamad Medical Corporation, Doha, Qatar; Dermatology Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
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7
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Fang XX, Zhai MN, Zhu M, He C, Wang H, Wang J, Zhang ZJ. Inflammation in pathogenesis of chronic pain: Foe and friend. Mol Pain 2023; 19:17448069231178176. [PMID: 37220667 DOI: 10.1177/17448069231178176] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023] Open
Abstract
Chronic pain is a refractory health disease worldwide causing an enormous economic burden on individuals and society. Accumulating evidence suggests that inflammation in the peripheral nervous system (PNS) and central nervous system (CNS) is the major factor in the pathogenesis of chronic pain. The inflammation in the early- and late phase may have distinctive effects on the initiation and resolution of pain, which can be viewed as friend or foe. On the one hand, painful injuries lead to the activation of glial cells and immune cells in the PNS, releasing pro-inflammatory mediators, which contribute to the sensitization of nociceptors, leading to chronic pain; neuroinflammation in the CNS drives central sensitization and promotes the development of chronic pain. On the other hand, macrophages and glial cells of PNS and CNS promote pain resolution via anti-inflammatory mediators and specialized pro-resolving mediators (SPMs). In this review, we provide an overview of the current understanding of inflammation in the deterioration and resolution of pain. Further, we summarize a number of novel strategies that can be used to prevent and treat chronic pain by controlling inflammation. This comprehensive view of the relationship between inflammation and chronic pain and its specific mechanism will provide novel targets for the treatment of chronic pain.
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Affiliation(s)
- Xiao-Xia Fang
- Department of Human Anatomy, School of Medicine, Nantong University, Nantong, China
| | - Meng-Nan Zhai
- Department of Human Anatomy, School of Medicine, Nantong University, Nantong, China
| | - Meixuan Zhu
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA
| | - Cheng He
- Department of Human Anatomy, School of Medicine, Nantong University, Nantong, China
| | - Heng Wang
- Department of Human Anatomy, School of Medicine, Nantong University, Nantong, China
| | - Juan Wang
- Department of Human Anatomy, School of Medicine, Nantong University, Nantong, China
| | - Zhi-Jun Zhang
- Department of Human Anatomy, School of Medicine, Nantong University, Nantong, China
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Tokhi A, Ahmed Z, Arif M, Rehman NU, Sheibani V, Sewell RDE, Rauf K. Effects of 1-methyl-1, 2, 3, 4-tetrahydroisoquinoline on a diabetic neuropathic pain model. Front Pharmacol 2023; 14:1128496. [PMID: 37033637 PMCID: PMC10073420 DOI: 10.3389/fphar.2023.1128496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/13/2023] [Indexed: 04/11/2023] Open
Abstract
Background: Neuropathy is a prevalent and debilitating complication of poorly managed diabetes, contributing towards poor quality of life, amputation risk, and increased mortality. The available therapies for diabetic neuropathic pain (DPN) have limitations in terms of efficacy, tolerability and patient compliance. Dysfunction in the peripheral and central monoaminergic system has been evidenced in various types of neuropathic and acute pain. The objective of the present study was to investigate 1-methyl 1, 2, 3, 4-tetrahydroisoquinoline (1MeTIQ), an endogenous amine found in human brain with a known neuroprotective profile, in a model of streptozotocin (STZ) induced neuropathic pain. Methods: Diabetic neuropathy in male BALB/c mice was induced by intraperitoneal injection of a single dose of STZ (200 mg/kg). Upon development of DPN after 4 weeks, mice were investigated for mechanical allodynia (von Frey filament pressure test) and thermal hyperalgesia (tail immersion test). Ondansetron (1.0 mg/kg i.p.), naloxone (3.0 mg/kg i.p.) and yohimbine (2.0 mg/kg i.p.) were used to elucidate the possible mechanism involved. Postmortem frontal cortical, striatal and hippocampal tissues were dissected and evaluated for changes in levels of dopamine, noradrenaline and serotonin using High-Performance Liquid Chromatography (HPLC) with UV detection. Results: Acute administration of 1MeTIQ (15-45 mg/kg i.p.) reversed streptozotocin-induced diabetic neuropathic static mechanical allodynia (von Frey filament pressure test) and thermal hyperalgesia (tail immersion test), these outcomes being comparable to standard gabapentin. Furthermore, HPLC analysis revealed that STZ-diabetic mice expressed lower concentrations of serotonin in all three brain regions examined, while dopamine was diminished in the striatum and 1MeTIQ reversed all these neurotransmitter modifications. These findings suggest that the antihyperalgesic/antiallodynic activity of 1MeTIQ may be mediated in part via supraspinal opioidergic and monoaminergic modulation since they were naloxone, yohimbine and ondansetron reversible. Conclusion: It was also concluded that acute treatment with 1MeTIQ ameliorated STZ-induced mechanical allodynia and thermal hyperalgesia and restored brain regionally altered serotonin and dopamine concentrations which signify a potential for 1MeTIQ in the management of DPN.
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Affiliation(s)
- Ahmed Tokhi
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Zainab Ahmed
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Mehreen Arif
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad, Pakistan
| | - Naeem Ur Rehman
- Faculty of Pharmacy, Gomal University, Dera Ismail Khan, Pakistan
| | - Vahid Sheibani
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Robert D. E. Sewell
- Cardiff School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, United Kingdom
| | - Khalid Rauf
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad, Pakistan
- *Correspondence: Khalid Rauf,
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Zhou L, Tang J, Cai Q, Wang Y, Wan Y, Lu X, Bai J. Survey of factors related to diabetic foot pruritus in the elderly in Shanghai. Int Wound J 2022. [DOI: 10.1111/iwj.14065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- Lin Zhou
- Department of Nursing Huadong Hospital Affiliated to Fudan University Shanghai China
| | - Jun Tang
- Department of Nursing Huadong Hospital Affiliated to Fudan University Shanghai China
| | - Qing Cai
- Department of Nursing Huadong Hospital Affiliated to Fudan University Shanghai China
| | - Yi‐Ru Wang
- Department of Cardiac Care Unit Huadong Hospital Affiliated to Fudan University Shanghai China
| | - Yan Wan
- Department of Vascular Surgery Huadong Hospital Affiliated to Fudan University Shanghai China
| | - Xiang Lu
- Department of Endocrine ward Huadong Hospital Affiliated to Fudan University Shanghai China
| | - Jiao‐Jiao Bai
- Department of Nursing Huadong Hospital Affiliated to Fudan University Shanghai China
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10
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Alpha-Lipoic Acid as an Antioxidant Strategy for Managing Neuropathic Pain. Antioxidants (Basel) 2022; 11:antiox11122420. [PMID: 36552628 PMCID: PMC9774895 DOI: 10.3390/antiox11122420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/04/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
Neuropathic pain (NP) is the most prevalent and debilitating form of chronic pain, caused by injuries or diseases of the somatosensory system. Since current first-line treatments only provide poor symptomatic relief, the search for new therapeutic strategies for managing NP is an active field of investigation. Multiple mechanisms contribute to the genesis and maintenance of NP, including damage caused by oxidative stress. The naturally occurring antioxidant alpha-lipoic acid (ALA) is a promising therapeutic agent for the management of NP. Several pre-clinical in vitro and in vivo studies as well as clinical trials demonstrate the analgesic potential of ALA in the management of NP. The beneficial biological activities of ALA are reflected in the various patents for the development of ALA-based innovative products. This review demonstrates the therapeutic potential of ALA in the management of NP by discussing its analgesic effects by multiple antioxidant mechanisms as well as the use of patented ALA-based products and how technological approaches have been applied to enhance ALA's pharmacological properties.
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11
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Zhao B, Fu J, Ni H, Xu L, Xu C, He Q, Ni C, Wang Y, Kuang J, Tang M, Shou Q, Yao M. Catalpol ameliorates CFA-induced inflammatory pain by targeting spinal cord and peripheral inflammation. Front Pharmacol 2022; 13:1010483. [PMID: 36353492 PMCID: PMC9637921 DOI: 10.3389/fphar.2022.1010483] [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: 08/03/2022] [Accepted: 10/11/2022] [Indexed: 10/24/2023] Open
Abstract
Chronic, inflammatory pain is an international health concern that severely diminishes individuals' quality of life. Catalpol is an iridoid glycoside derived from the roots of Rehmannia glutinosa that possesses anti-inflammatory, antioxidant, and neuroprotective properties for the treating multiple kinds of disorders. Nevertheless, catalpol's impacts on inflammatory pain and its potential methods of action are still unclear. The purpose of this investigation is to determine the mechanism of catalpol to reduce the inflammatory pain behaviors in a rat model with complete Freund's adjuvant (CFA). Catwalk, Von-Frey, and open field testing were performed for behavioral assessment. Western blot analysis and real-time quantitative PCR (RT-PCR) were employed to identify variations in molecular expression, while immunofluorescence was utilized to identify cellular localization. Catalpol effectively reduced CFA-induced mechanical allodynia and thermal hyperalgesia when injected intrathecally. Moreover, catalpol can regulate the HDAC4/PPAR-γ-signaling pathway in CFA rat spinal cord neurons. Meanwhile catalpol significantly decreased the expression of the NF-κB/NLRP3 inflammatory axis in the spinal cord of CFA rats. In addition, both in vivo and in vitro research revealed that catalpol treatment inhibited astrocyte activation and increase inflammatory factor expression. Interestingly, we also found that catalpol could alleviate peripheral pain by inhibiting tissue inflammation. Taken together, the findings declared that catalpol may inhibit inflammatory pain in CFA rats by targeting spinal cord and peripheral inflammation.
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Affiliation(s)
- Baoxia Zhao
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
- Department of Anesthesiology and Pain Research Center, The First Hospital of Jiaxing Or The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Jie Fu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
- Department of Anesthesiology and Pain Research Center, The First Hospital of Jiaxing Or The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Huadong Ni
- Department of Anesthesiology and Pain Research Center, The First Hospital of Jiaxing Or The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Longsheng Xu
- Department of Anesthesiology and Pain Research Center, The First Hospital of Jiaxing Or The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Chengfei Xu
- Department of Anesthesiology and Pain Research Center, The First Hospital of Jiaxing Or The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Qiuli He
- Department of Anesthesiology and Pain Research Center, The First Hospital of Jiaxing Or The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Chaobo Ni
- Department of Anesthesiology and Pain Research Center, The First Hospital of Jiaxing Or The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Yahui Wang
- Department of Anesthesiology and Pain Research Center, The First Hospital of Jiaxing Or The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Jiao Kuang
- Department of Anesthesiology and Pain Research Center, The First Hospital of Jiaxing Or The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Mengjie Tang
- Department of Anesthesiology and Pain Research Center, The First Hospital of Jiaxing Or The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Qiyang Shou
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ming Yao
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
- Department of Anesthesiology and Pain Research Center, The First Hospital of Jiaxing Or The Affiliated Hospital of Jiaxing University, Jiaxing, China
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12
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Yuan Y, Li J, Chen Y, Cai Q, Xu Y, Lin L, Lang Y, Guo S, Zhang R, Cai X. Mechanism underlying linezolid-induced peripheral neuropathy in multidrug-resistant tuberculosis. Front Pharmacol 2022; 13:946058. [PMID: 36160387 PMCID: PMC9500448 DOI: 10.3389/fphar.2022.946058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 08/12/2022] [Indexed: 11/30/2022] Open
Abstract
Multidrug-resistant tuberculosis (MDR-TB) remains a main global health concern as there is no comprehensive therapeutic intervention yet and numerous adverse effects follow the therapeutic process. In recent years, linezolid has been frequently used for treating MDR-TB. However, peripheral neuropathy associated with linezolid has reduced patient compliance. The current study explored the mechanism underlying linezolid-induced peripheral neuropathy in MDR-TB. Autophagy plays a neuroprotective role against peripheral nerve injury. We hypothesized that autophagy might also play a neuroprotective role against linezolid-induced peripheral neuropathy. In this study, we collected 12 questionnaires from MDR-TB patients in our hospital, and 10 of them developed linezolid-induced pain. The pain is mainly concentrated in the feet and accompanied by numbness. Subsequently, we used Sprague-Dawley (SD) rats and Schwann cells (SCs) to explore the mechanism. We found that linezolid causes a sparse arrangement of sciatic nerve tissue with associated loss of neurons, myelin sheaths, and down-regulation of LC3B expression. These results were also confirmed by in vitro experiments, showing that linezolid inhibited the proliferation of SCs. And the expression of P-AKT and P62 was elevated, and the expression of LC3B declined compared with the control group. Moreover, chloroquine (CQ), an autophagy inhibitor, also exhibited experimental results similar to linezolid. In summary, we conclude that linezolid-induced peripheral neuropathy is associated with the inhibition of autophagy flux.
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Affiliation(s)
- Yuan Yuan
- Zhejiang University School of Medicine, Affiliated Hangzhou Chest Hospital, Hangzhou, Zhejiang, China
| | - Jinmeng Li
- Zhejiang University School of Medicine, Affiliated Hangzhou Chest Hospital, Hangzhou, Zhejiang, China
| | - Yanhong Chen
- Laboratory Animal Center of Zhejiang University, Hangzhou, Zhejiang, China
| | - Qingshan Cai
- Zhejiang University School of Medicine, Affiliated Hangzhou Chest Hospital, Hangzhou, Zhejiang, China
| | - Yingying Xu
- Zhejiang University School of Medicine, Affiliated Hangzhou Chest Hospital, Hangzhou, Zhejiang, China
| | - Luting Lin
- College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Yazhen Lang
- Zhejiang University School of Medicine, Affiliated Hangzhou Chest Hospital, Hangzhou, Zhejiang, China
| | - Suhang Guo
- Zhejiang University School of Medicine, Affiliated Hangzhou Chest Hospital, Hangzhou, Zhejiang, China
| | - Ruoying Zhang
- Zhejiang University School of Medicine, Affiliated Hangzhou Chest Hospital, Hangzhou, Zhejiang, China
- *Correspondence: Ruoying Zhang, ; Xinjun Cai,
| | - Xinjun Cai
- Zhejiang University School of Medicine, Affiliated Hangzhou Chest Hospital, Hangzhou, Zhejiang, China
- *Correspondence: Ruoying Zhang, ; Xinjun Cai,
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13
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Li M, Zhou S, Wang G, Qiao L, Yi S, Li T, Pan X, Liu X, Tang Z. Calpain Inhibitor Calpeptin Improves Alzheimer's Disease-Like Cognitive Impairments and Pathologies in a Diabetes Mellitus Rat Model. Neurotox Res 2022; 40:1248-1260. [PMID: 36018506 DOI: 10.1007/s12640-022-00561-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/10/2022] [Accepted: 08/18/2022] [Indexed: 11/26/2022]
Abstract
Diabetes mellitus (DM) has been considered an accelerator of Alzheimer's disease (AD), but the cellular and molecular mechanisms underlying this effect are not fully understood. Here, we attempted to determine the role and regulatory mechanism of calpain in the AD-like cognitive decline and pathological changes in rats caused by DM. In the initial stages, our results verified that DM model rats showed cognitive impairment, as well as a loss of neurons, decreased pericyte marker (PDGFR-β and α-SMA), and calpain-2 expression and amyloid-β (Aβ) deposition in the hippocampal tissues. In high glucose-induced primary pericytes, the cell apoptotic rate was increased, and cell proliferation was inhibited in a time-dependent manner. The protein level of calpain-2 was also upregulated by HG induction, but the level of calpain-1 did not change with HG treatment, which was also observed in DM model rats. Subsequently, some DM model rats were administered calpeptin, an inhibitor of calpain. Our data revealed that calpeptin treatment significantly suppressed calpain-1 and calpain-2 expression in the hippocampal tissues and effectively improved the cognitive impairments of DM model rats. Neuronal loss, Aβ accumulation, pericyte loss, inflammation, and oxidative stress injury in the hippocampal tissues of DM model rats were also partly rescued by calpeptin administration. Our work demonstrated that the calpain inhibitor calpeptin could alleviate DM-induced AD-like cognitive impairments and pathological changes in rats, and this effect may be associated with pericytes. Calpeptin may become a promising drug to treat the AD-like complications of DM.
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Affiliation(s)
- Min Li
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
- Institute of Neuroscience, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Siqi Zhou
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Gege Wang
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Luyao Qiao
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Shouqin Yi
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Tianpei Li
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Xin Pan
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Xu Liu
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Zhenyu Tang
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
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