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Xu G, Dong F, Su L, Tan ZX, Lei M, Li L, Wen D, Zhang F. The role and therapeutic potential of nuclear factor κB (NF-κB) in ischemic stroke. Biomed Pharmacother 2024; 171:116140. [PMID: 38211425 DOI: 10.1016/j.biopha.2024.116140] [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: 11/12/2023] [Revised: 01/03/2024] [Accepted: 01/04/2024] [Indexed: 01/13/2024] Open
Abstract
Stroke is a prevalent cerebrovascular condition with a global impact, causing significant rates of illness and death. Despite extensive research, the available treatment options for stroke remain restricted. Hence, it is crucial to gain a deeper understanding of the molecular mechanisms associated with the onset and advancement of stroke in order to establish a theoretical foundation for novel preventive and therapeutic approaches. NF-κB, also known as nuclear factor κB, is a transcription factor responsible for controlling the expression of numerous genes and plays a crucial role in diverse physiological processes. NF-κB is triggered and regulates neuroinflammation and other processes after stroke, promoting the generation of cytokine storms and contributing to the advancement of ischemic stroke (IS). Therefore, NF-κB could potentially play a vital role in stroke by regulating diverse pathophysiological processes. This review provides an overview of the functions of NF-κB in stroke and its governing mechanisms. In addition, our attention is directed towards various potential therapies that aim to inhibit the NF-κB signaling pathway in order to offer valuable insights for the advancement of innovative treatment approaches for stroke.
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Affiliation(s)
- Guangyu Xu
- Department of Rehabilitation Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, PR China
| | - Fang Dong
- Department of Clinical Laboratory Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, PR China
| | - Lei Su
- Department of Radiotherapy, Affiliated Hospital of Hebei University, Baoding 071000, PR China
| | - Zi-Xuan Tan
- Department of Rehabilitation Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, PR China
| | - Mingcheng Lei
- Department of Rehabilitation Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, PR China
| | - Lina Li
- Department of Rehabilitation Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, PR China
| | - Di Wen
- College of Forensic Medicine, Hebei Medical University, Shijiazhuang 050017, PR China; Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Shijiazhuang 050017, PR China; Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, Chinese Academy of Medical Sciences, Shijiazhuang 050017, PR China.
| | - Feng Zhang
- Department of Rehabilitation Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, PR China.
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Tilwani K, Patel A, Patel M, Sojitra P, Dave G. Asiaticoside A for the modulation of 1-TbAd- a potential target and ligand for extensive drug resistance Mycobacterium tuberculosis. AMB Express 2023; 13:111. [PMID: 37833557 PMCID: PMC10575824 DOI: 10.1186/s13568-023-01616-w] [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: 09/25/2023] [Accepted: 10/01/2023] [Indexed: 10/15/2023] Open
Abstract
In nature, terpene nucleosides are relatively rare, with 1-tuberculosinyladenosine (1-TbAd) being an exclusive feature of Mycobacterium tuberculosis (Mtb). The convergence of nucleosides and terpene pathways in the Mtb complex appears to have emerged late in its evolutionary history. 1-TbAd (PDB ID: 3WQK) is a prominent chemical marker for Mtb and may contribute to its virulence-related properties when exported extracellularly. We gathered a comprehensive set of 270 phytochemicals from diverse Ayurvedic texts and treatment traditions. Subsequently, we conducted structure-based molecular docking analyses to identify compounds exhibiting the strongest binding affinity for 1-TbAd, highlighting their potential as drug candidates. These selected compounds were further subjected to an in-vitro growth inhibition assay against the reference strain Mycobacterium tuberculosis h37rv. Among the candidates, Asiaticoside A (ASA) emerged as a promising candidate from the pool of 270 compounds. To assess the impact of ASA on 1-TbAd expression, we employed a PCR-based mRNA expression assay, revealing ASA's ability to downregulate 1-TbAd expression in extensively drug-resistant MTb strains. Remarkably, the conventional drug rifampin showed no such effectiveness in our experiments. We further conducted molecular dynamic simulations to explore the interaction between ASA and 1-TbAd in a cellular-like environment, confirming the stability of their interaction. Also, we predicted ASA's stability toward causing inducing the random mutations in the target gene. With this, we propose a novel target and its modulator to treat extensively drug-resistant MTB.
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Affiliation(s)
- Komal Tilwani
- P D Patel Institute of Applied Sciences, Charotar University of Science and Technology, Changa, 388421, India
| | - Abhishek Patel
- P D Patel Institute of Applied Sciences, Charotar University of Science and Technology, Changa, 388421, India
| | - Mainavi Patel
- P D Patel Institute of Applied Sciences, Charotar University of Science and Technology, Changa, 388421, India
| | - Pankaj Sojitra
- QxP Pharma project and GMP services Private Ltd, Ahmedabad, India
| | - Gayatri Dave
- P D Patel Institute of Applied Sciences, Charotar University of Science and Technology, Changa, 388421, India.
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Rivadeneyra-Domínguez E, Zamora-Bello I, Castañeda-Morales JM, Díaz-Vallejo JJ, Rosales-Sánchez Ó, Rodríguez-Landa JF. The standardized extract of Centella asiatica L. Urb attenuates the convulsant effect induced by lithium/pilocarpine without affecting biochemical and haematological parameters in rats. BMC Complement Med Ther 2023; 23:343. [PMID: 37759286 PMCID: PMC10523769 DOI: 10.1186/s12906-023-04179-2] [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: 03/31/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Status epilepticus (SE) is a type of epileptic activity characterized by a failure of the inhibitory mechanisms that limit seizures, which are mainly regulated by the GABAergic system. This imbalance increases glutamatergic neurotransmission and consequently produces epileptic activity. It is also associated with oxidative stress due to an imbalance between reactive oxygen species (ROS) and antioxidant defences. Unfortunately, long-term treatment with anti-epileptic drugs (AEDs) may produce hepatotoxicity, nephrotoxicity, and haematological alterations. In this way, some secondary metabolites of plants have been used to ameliorate the deterioration of nervous system disorders through their antioxidant properties, in addition to their anticonvulsant effects. An example is Centella asiatica, a plant noted to have a reputed neuroprotective effect related to its antioxidant activity. However, similar to conventional drugs, natural molecules may produce side effects when consumed in high doses, which could occur with Centella asiatica. Therefore, we aimed to evaluate the effect of a standardized extract of Centella asiatica L. Urb with tested anticonvulsant activity on biochemical and haematological parameters in rats subjected to lithium/pilocarpine-induced seizures. METHODS Twenty-eight adult male Wistar rats were randomly divided into four groups (n = 7 each): vehicle (purified water), Centella asiatica (200 and 400 mg/kg), and carbamazepine (CBZ) (300 mg/kg) as a pharmacological control of anticonvulsant activity. Treatments were administered orally every 24 h for 35 consecutive days. On Day 36, SE was induced using the lithium/pilocarpine model (3 mEq/kg, i.p. and 30 mg/kg s.c., respectively), and the behavioural and biochemical effects were evaluated. RESULTS Centella asiatica 400 mg/kg increased the latency to the first generalized seizure and SE onset and significantly reduced the time to the first generalized seizure compared to values in the vehicle group. Biochemical parameters, i.e., haematic cytometry, blood chemistry, and liver function tests, showed no significant differences among the different treatments. CONCLUSION The dose of Centella asiatica that produces anticonvulsant activity in the lithium/pilocarpine model devoid of hepatotoxicity, nephrotoxicity, and alterations in haematological parameters suggests that the standardized extract of this plant could be of utility in the development of new safe therapies for the treatment of convulsions associated with epilepsy.
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Affiliation(s)
| | - Isaac Zamora-Bello
- Facultad de Química Farmacéutica Biológica, Universidad Veracruzana, Xalapa, Veracruz, México
| | | | | | - Óscar Rosales-Sánchez
- Facultad de Química Farmacéutica Biológica, Universidad Veracruzana, Xalapa, Veracruz, México
| | - Juan Francisco Rodríguez-Landa
- Facultad de Química Farmacéutica Biológica, Universidad Veracruzana, Xalapa, Veracruz, México
- Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Veracruz, México
- Laboratorio de Neurofarmacología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Veracruz, México
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Islamie R, Myint SLL, Rojanaratha T, Ritthidej G, Wanakhachornkrai O, Wattanathamsan O, Rodsiri R. Neuroprotective effect of nose-to-brain delivery of Asiatic acid in solid lipid nanoparticles and its mechanisms against memory dysfunction induced by Amyloid Beta 1-42 in mice. BMC Complement Med Ther 2023; 23:294. [PMID: 37608290 PMCID: PMC10464452 DOI: 10.1186/s12906-023-04125-2] [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: 03/24/2023] [Accepted: 08/13/2023] [Indexed: 08/24/2023] Open
Abstract
BACKGROUND Amyloid-β1-42 (Aβ1-42) plays an essential role in the development of the early stage of Alzheimer's disease (AD). Asiatic acid (AA), an active compound in Centella asiatica L, exhibit neuroprotective properties in previous studies. Due to its low bioavailability, the nose-to-brain delivery technique was used to enhance AA penetration in the brain. In this study, AA was also loaded in solid lipid nanoparticles (SLNs) as a strategy to increase its absorption in the nasal cavity. METHODS Memory impairment was induced via direct intracerebroventricular injection of Aβ1-42 oligomer into mouse brain. The neuroprotective effect and potential underlying mechanisms were investigated using several memory behavioral examinations and molecular techniques. RESULTS The intranasal administration of AA in SLNs attenuated learning and memory impairment induced by Aβ1-42 in Morris water maze and novel object recognition tests. AA significantly inhibited tau hyperphosphorylation of pTau-S396 and pTau-T231 and prevented astrocyte reactivity and microglial activation in the hippocampus of Aβ1-42-treated mice. It is also decreased the high levels of IL-1β, TNF-α, and malondialdehyde (MDA) in mouse brain. CONCLUSIONS These results suggested that nose-to-brain delivery of AA in SLNs could be a promising strategy to treat the early stage of AD.
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Affiliation(s)
- Ridho Islamie
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Su Lwin Lwin Myint
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Tissana Rojanaratha
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Garnpimol Ritthidej
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
- Queen Saovabha Memorial Institute, The Thai Red Cross Society, Bangkok, 10330, Thailand
| | - Oraphan Wanakhachornkrai
- Physiology Unit, Department of Medical Sciences, Faculty of Sciences, Rangsit University, Pathumthani, 12000, Thailand
| | - Onsurang Wattanathamsan
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Ratchanee Rodsiri
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand.
- Preclinical Toxicity and Efficacy Assessment of Medicines and Chemicals Research Unit, Chulalongkorn University, Bangkok, 10330, Thailand.
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Asiaticoside Increases Caspase-9 Activity in MCF-7 Cells and Inhibits TNF-α and IL-6 Expression in Nude Mouse Xenografts via the NF-κB Pathway. Molecules 2023; 28:molecules28052101. [PMID: 36903346 PMCID: PMC10003851 DOI: 10.3390/molecules28052101] [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: 02/09/2023] [Revised: 02/21/2023] [Accepted: 02/22/2023] [Indexed: 02/26/2023] Open
Abstract
Background: We hypothesized that the antitumor effects of asiaticoside on breast cancer are driven by its ability to decrease the expression of tumor inflammation-promoting genes and increase apoptotic signaling. In this study, we aimed to better understand the mechanisms of action of asiaticoside as a chemical modulator or as a chemopreventive agent in breast cancer. Methods: MCF-7 cells were cultured and treated with 0, 20, 40, and 80 μM asiaticoside for 48 h. Fluorometric caspase-9, apoptosis, and gene expression analyses were conducted. For the xenograft experiments, we divided nude mice into the following 5 groups (10 animals per group): group I, control mice; group II, untreated tumor-bearing nude mice; group III, tumor-bearing nude mice treated with asiaticoside at weeks 1-2 and 4-7 and injected with MCF-7 cells at week 3; group IV, tumor-bearing nude mice injected with MCF-7 cells at week 3 and treated with asiaticoside beginning at week 6; and group V, nude mice treated with asiaticoside, as a drug control. After treatment, weight measurements were performed weekly. Tumor growth was determined and analyzed using histology and DNA and RNA isolation. Results: In MCF-7 cells, we found that asiaticoside increased caspase-9 activity. In the xenograft experiment, we found that TNF-α and IL-6 expression decreased (p < 0.001) via the NF-κB pathway. Conclusion: Overall, our data suggest that asiaticoside produces promising effects on tumor growth, progression, and tumor-associated inflammation in MCF-7 cells as well as a nude mouse MCF-7 tumor xenograft model.
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He Z, Hu Y, Niu Z, Zhong K, Liu T, Yang M, Ji L, Hu W. A review of pharmacokinetic and pharmacological properties of asiaticoside, a major active constituent of Centella asiatica (L.) Urb. JOURNAL OF ETHNOPHARMACOLOGY 2023; 302:115865. [PMID: 36306932 DOI: 10.1016/j.jep.2022.115865] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/10/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Centella asiatica (L.) Urb., a potential medicinal plant, is widely used in orient traditional medicine. Its major active constituents include asiaticoside (AS), madecassoside (MS), asiatic acid and madecassic acid. Thereinto, AS is a pentacyclic triterpenoid saponin with a variety of pharmacological effects including antitumor, neuroprotective and wound healing effects. AIM OF THE STUDY In this review, we summarize the pharmacokinetics, safety and pharmacological properties of AS. MATERIALS AND METHODS We gathered information about AS from articles published up to 2022 and listed in Google scholar, PubMed, Web of Science, Elsevier, and similar databases. The keywords used in our search included "asiaticoside", "Centella asiatica", "pharmacokinetics", "nerve", "cancer", "skin", etc. RESULTS: AS appeared to degrade through a first-order reaction and had low biotoxicity. However, the pharmacokinetic properties of AS differed according to species. AS is highly blood-brain-barrier permeable without any harmful side effect. It has a variety of pharmacological effects including anti-neural inflammation and anti-cancer properties, as well as protective properties for the skin, cardiovascular system, and pulmonary system. CONCLUSION This review comprehensively summarized current information regarding the pharmacokinetic and pharmacological properties of AS, and supported the pharmaceutical value of this compound. Future research should focus on improving bioavailability of AS and conducting clinical assessment.
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Affiliation(s)
- Ziliang He
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, China; School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China.
| | - Yeye Hu
- School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China.
| | - Zhiqiang Niu
- School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China.
| | - Kang Zhong
- School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China.
| | - Tingwu Liu
- School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China.
| | - Meng Yang
- Jiangsu Food and Pharmaceutical Science College, Huaian, 223300, China.
| | - Lilian Ji
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, China.
| | - Weicheng Hu
- School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China.
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Bandopadhyay S, Mandal S, Ghorai M, Jha NK, Kumar M, Radha, Ghosh A, Proćków J, Pérez de la Lastra JM, Dey A. Therapeutic properties and pharmacological activities of asiaticoside and madecassoside: A review. J Cell Mol Med 2023; 27:593-608. [PMID: 36756687 PMCID: PMC9983323 DOI: 10.1111/jcmm.17635] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 09/15/2022] [Accepted: 11/21/2022] [Indexed: 02/10/2023] Open
Abstract
Centella asiatica is an ethnomedicinal herbaceous species that grows abundantly in tropical and sub-tropical regions of China, India, South-Eastern Asia and Africa. It is a popular nutraceutical that is employed in various forms of clinical and cosmetic treatments. C. asiatica extracts are reported widely in Ayurvedic and Chinese traditional medicine to boost memory, prevent cognitive deficits and improve brain functions. The major bioactive constituents of C. asiatica are the pentacyclic triterpenoid glycosides, asiaticoside and madecassoside, and their corresponding aglycones, asiatic acid and madecassic acid. Asiaticoside and madecassoside have been identified as the marker compounds of C. asiatica in the Chinese Pharmacopoeia and these triterpene compounds offer a wide range of pharmacological properties, including neuroprotective, cardioprotective, hepatoprotective, wound healing, anti-inflammatory, anti-oxidant, anti-allergic, anti-depressant, anxiolytic, antifibrotic, antibacterial, anti-arthritic, anti-tumour and immunomodulatory activities. Asiaticoside and madecassoside are also used extensively in treating skin abnormalities, burn injuries, ischaemia, ulcers, asthma, lupus, psoriasis and scleroderma. Besides medicinal applications, these phytocompounds are considered cosmetically beneficial for their role in anti-ageing, skin hydration, collagen synthesis, UV protection and curing scars. Existing reports and experimental studies on these compounds between 2005 and 2022 have been selectively reviewed in this article to provide a comprehensive overview of the numerous therapeutic advantages of asiaticoside and madecassoside and their potential roles in the medical future.
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Affiliation(s)
| | - Sujata Mandal
- Department of Life SciencesPresidency UniversityKolkataIndia
| | - Mimosa Ghorai
- Department of Life SciencesPresidency UniversityKolkataIndia
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & TechnologySharda UniversityGreater NoidaIndia,Department of Biotechnology Engineering and Food TechnologyChandigarh UniversityMohaliIndia,Department of Biotechnology, School of Applied & Life Sciences (SALS)Uttaranchal UniversityDehradunIndia
| | - Manoj Kumar
- Chemical and Biochemical Processing DivisionICAR – Central Institute for Research on Cotton TechnologyMumbaiIndia
| | - Radha
- School of Biological and Environmental SciencesShoolini University of Biotechnology and Management SciencesSolanIndia
| | | | - Jarosław Proćków
- Department of Plant Biology, Institute of Environmental BiologyWrocław University of Environmental and Life SciencesWrocławPoland
| | - José M. Pérez de la Lastra
- Instituto de Productos Naturales y Agrobiología (IPNA)Consejo Superior de Investigaciones científicas (CSIS)Santa Cruz de TenerifeSpain
| | - Abhijit Dey
- Department of Life SciencesPresidency UniversityKolkataIndia
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Biotechnological and endophytic-mediated production of centellosides in Centella asiatica. Appl Microbiol Biotechnol 2023; 107:473-489. [PMID: 36481800 DOI: 10.1007/s00253-022-12316-z] [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: 10/17/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 12/13/2022]
Abstract
In vitro culture of a plant cell, tissue and organ is a marvellous, eco-friendly biotechnological strategy for the production of phytochemicals. With the emergence of recent biotechnological tools, genetic engineering is now widely practiced enhancing the quality and quantity of plant metabolites. Triterpenoid saponins especially asiaticoside and madecassoside of Centella asiatica (L.) Urb. are popularly known for their neuroprotective activity. It has become necessary to increase the production of asiaticoside and madecassoside because of their high pharmaceutical and industrial demand. Thus, the review aims to provide efficient biotechnological tools along with proper strategies. This review also included a comparative analysis of various carbon sources and biotic and abiotic elicitors. The vital roles of a variety of plant growth regulators and their combinations have also been evaluated at different in vitro growth stages of Centella asiatica. Selection of explants, direct and callus-mediated organogenesis, root organogenesis, somatic embryogenesis, synthetic seed production etc. are also highlighted in this study. In a nutshell, this review will present the research outcomes of different biotechnological interventions used to increase the yield of triterpenoid saponins in C. asiatica. KEY POINTS: • Critical and updated assessment on in vitro biotechnology in C. asiatica. • In vitro propagation of C. asiatica and elicitation of triterpenoid saponins production. • Methods for mass producing C. asiatica.
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Heidari A, Yazdanpanah N, Rezaei N. The role of Toll-like receptors and neuroinflammation in Parkinson's disease. J Neuroinflammation 2022; 19:135. [PMID: 35668422 PMCID: PMC9172200 DOI: 10.1186/s12974-022-02496-w] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 05/26/2022] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Parkinson's disease (PD) is the second most prevalent neurodegenerative disorder, characterized by motor and non-motor symptoms, significantly affecting patients' life. Pathologically, PD is associated with the extensive degeneration of dopaminergic neurons in various regions of the central nervous system (CNS), specifically the substantia nigra. This neuronal loss is accompanied by the aggregation of misfolded protein, named α-synuclein. MAIN TEXT Recent studies detected several clues of neuroinflammation in PD samples using postmortem human PD brains and various PD animal models. Some evidence of neuroinflammation in PD patients included higher levels of proinflammatory cytokines in serum and cerebrospinal fluid (CSF), presence of activated microglia in various brain regions such as substantia nigra, infiltration of peripheral inflammatory cells in affected brain regions, and altered function of cellular immunity like monocytes phagocytosis defects. On the other side, Toll-like receptors (TLRs) are innate immune receptors primarily located on microglia, as well as other immune and non-immune cells, expressing pivotal roles in recognizing exogenous and endogenous stimuli and triggering inflammatory responses. Most studies indicated an increased expression of TLRs in the brain and peripheral blood cells of PD samples. Besides, this upregulation was associated with excessive neuroinflammation followed by neurodegeneration in affected regions. Therefore, evidence proposed that TLR-mediated neuroinflammation might lead to a dopaminergic neural loss in PD patients. In this regard, TLR2, TLR4, and TLR9 have the most prominent roles. CONCLUSION Although the presence of inflammation in acute phases of PD might have protective effects concerning the clearance of α-synuclein and delaying the disease advancement, the chronic activation of TLRs and neuroinflammation might lead to neurodegeneration, resulting in the disease progression. Therefore, this study aimed to review additional evidence of the contribution of TLRs and neuroinflammation to PD pathogenesis, with the hope that TLRs could serve as novel disease-modifying therapeutic targets in PD patients in the future.
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Affiliation(s)
- Arash Heidari
- Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Research Center for Immunodeficiencies, Children's Medical Center Hospital, Tehran University of Medical Sciences, Dr. Qarib St, Keshavarz Blvd, Tehran, 14194, Iran.,Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Niloufar Yazdanpanah
- Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Research Center for Immunodeficiencies, Children's Medical Center Hospital, Tehran University of Medical Sciences, Dr. Qarib St, Keshavarz Blvd, Tehran, 14194, Iran.,Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center Hospital, Tehran University of Medical Sciences, Dr. Qarib St, Keshavarz Blvd, Tehran, 14194, Iran. .,Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran. .,Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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Guo P, Zeng M, Wang S, Cao B, Liu M, Zhang Y, Jia J, Zhang Q, Zhang B, Wang R, Zheng X, Feng W. Eriodictyol and Homoeriodictyol Improve Memory Impairment in Aβ25–35-Induced Mice by Inhibiting the NLRP3 Inflammasome. Molecules 2022; 27:molecules27082488. [PMID: 35458684 PMCID: PMC9025671 DOI: 10.3390/molecules27082488] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 04/01/2022] [Accepted: 04/09/2022] [Indexed: 02/06/2023] Open
Abstract
(1) Alzheimer’s disease (AD) is a neurodegenerative disorder, and it is now widely accepted that neuroinflammation plays a key role in its pathogenesis. Eriodictyol (Eri) and homoeriodictyol (Hom), dihydroflavonoids extracted from a variety of plants, have been confirmed to display a relationship with neuroprotection. (2) Methods: An AD mouse model was constructed by intracerebroventricular (ICV) injection of the Aβ25–35 peptide, and Eri and Hom were administered orally for 4 weeks. UPLC-MS/MS was used to determine whether Eri and Hom cross the blood–brain barrier to exert their therapeutic effects. Histological changes in the brain and levels of Aβ were evaluated, and Y-maze and new object recognition experiments were conducted to assess the effects of Eri and Hom on Aβ25–35-induced memory impairment in mice. The levels of oxidative stress and apoptosis in peripheral immune cells and progenitor cells in the hippocampal region were analyzed by flow cytometry and in vitro assays. Western blotting and enzyme-linked immunosorbent assays (ELISA) were used to measure the expression levels of NLRP3 inflammasome-related proteins and inflammatory factors in the brain. The effect of nigericin (an agonist of the NLRP3 inflammasome) on Eri and Hom intervention in LPS-induced N9 microglia was examined using a High Content Screening System. (3) Results: Eri and Hom reduced neuronal damage in mouse brain tissue, decreased Aβ levels in the brain, downregulated oxidative stress and apoptosis levels, and improved learning and memory capacity by crossing the blood–brain barrier to exert its effects. Moreover, Eri and Hom inhibited NLRP3 inflammasome activation and ameliorated immune cell disorder. Furthermore, the effect of Eri and Hom on LPS-induced N9 microglia disappeared after the addition of nigericin to agonize NLRP3 receptors. (4) Conclusions: Eri and Hom improved Aβ25–35-induced memory impairment in mice by inhibiting the NLRP3 inflammasome.
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Affiliation(s)
- Pengli Guo
- College of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou 450046, China; (P.G.); (M.Z.); (S.W.); (B.C.); (M.L.); (Y.Z.); (J.J.); (Q.Z.); (B.Z.); (R.W.)
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, 156 Jinshui East Road, Zhengzhou 450046, China
| | - Mengnan Zeng
- College of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou 450046, China; (P.G.); (M.Z.); (S.W.); (B.C.); (M.L.); (Y.Z.); (J.J.); (Q.Z.); (B.Z.); (R.W.)
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, 156 Jinshui East Road, Zhengzhou 450046, China
| | - Shengchao Wang
- College of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou 450046, China; (P.G.); (M.Z.); (S.W.); (B.C.); (M.L.); (Y.Z.); (J.J.); (Q.Z.); (B.Z.); (R.W.)
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, 156 Jinshui East Road, Zhengzhou 450046, China
| | - Bing Cao
- College of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou 450046, China; (P.G.); (M.Z.); (S.W.); (B.C.); (M.L.); (Y.Z.); (J.J.); (Q.Z.); (B.Z.); (R.W.)
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, 156 Jinshui East Road, Zhengzhou 450046, China
| | - Meng Liu
- College of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou 450046, China; (P.G.); (M.Z.); (S.W.); (B.C.); (M.L.); (Y.Z.); (J.J.); (Q.Z.); (B.Z.); (R.W.)
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, 156 Jinshui East Road, Zhengzhou 450046, China
| | - Yuhan Zhang
- College of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou 450046, China; (P.G.); (M.Z.); (S.W.); (B.C.); (M.L.); (Y.Z.); (J.J.); (Q.Z.); (B.Z.); (R.W.)
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, 156 Jinshui East Road, Zhengzhou 450046, China
| | - Jufang Jia
- College of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou 450046, China; (P.G.); (M.Z.); (S.W.); (B.C.); (M.L.); (Y.Z.); (J.J.); (Q.Z.); (B.Z.); (R.W.)
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, 156 Jinshui East Road, Zhengzhou 450046, China
| | - Qinqin Zhang
- College of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou 450046, China; (P.G.); (M.Z.); (S.W.); (B.C.); (M.L.); (Y.Z.); (J.J.); (Q.Z.); (B.Z.); (R.W.)
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, 156 Jinshui East Road, Zhengzhou 450046, China
| | - Beibei Zhang
- College of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou 450046, China; (P.G.); (M.Z.); (S.W.); (B.C.); (M.L.); (Y.Z.); (J.J.); (Q.Z.); (B.Z.); (R.W.)
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, 156 Jinshui East Road, Zhengzhou 450046, China
| | - Ru Wang
- College of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou 450046, China; (P.G.); (M.Z.); (S.W.); (B.C.); (M.L.); (Y.Z.); (J.J.); (Q.Z.); (B.Z.); (R.W.)
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, 156 Jinshui East Road, Zhengzhou 450046, China
| | - Xiaoke Zheng
- College of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou 450046, China; (P.G.); (M.Z.); (S.W.); (B.C.); (M.L.); (Y.Z.); (J.J.); (Q.Z.); (B.Z.); (R.W.)
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, 156 Jinshui East Road, Zhengzhou 450046, China
- Correspondence: (X.Z.); (W.F.)
| | - Weisheng Feng
- College of Pharmacy, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou 450046, China; (P.G.); (M.Z.); (S.W.); (B.C.); (M.L.); (Y.Z.); (J.J.); (Q.Z.); (B.Z.); (R.W.)
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, 156 Jinshui East Road, Zhengzhou 450046, China
- Correspondence: (X.Z.); (W.F.)
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Development and Optimization of Nanoemulsion from Ethanolic Extract of Centella asiatica (NanoSECA) Using D-Optimal Mixture Design to Improve Blood-Brain Barrier Permeability. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:3483511. [PMID: 35295926 PMCID: PMC8920630 DOI: 10.1155/2022/3483511] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 12/16/2021] [Accepted: 01/17/2022] [Indexed: 11/17/2022]
Abstract
The evidence on the neuroprotective impact of Centella asiatica (C. asiatica) has been greatly documented in recent years. However, a major obstacle that remains to be overcome is the capacity of the active molecules in C. asiatica to cross the blood-brain barrier (BBB). In this study, we explored the possibilities of using a D-optimal mixture design to fabricate nanoemulsion of C. asiatica (NanoSECA) for better brain bioavailability. The parameters for optimization were the percentage of water (10–80% w/v) and virgin coconut oil (VCO) (10–80% w/v). Nanoemulsions were formulated using a high-pressure homogenization approach and were characterized for their physicochemical properties. The optimal VCO-based nanoemulsion (VBN: F2) conditions were found at 80% (w/v) of water and 10% (w/v) of VCO. Subsequently, viability tests were conducted on neuroblastoma (SH-SY5Y) and macrophage (RAW 264.7) cell lines. NanoSECA was distinguished for its antioxidant, acetylcholinesterase (AChE), anti-inflammatory, and parallel artificial membrane permeability assay (PAMPA) activities in vitro. The NanoSECA has a particle size of 127.833 ± 8.280 nm, zeta potential (ZP) of −24.9 ± 0.011 mV, polydispersity index (PDI) of 0.493 ± 4.681, percentage prediction error (PPE) of −12.02%, and pH of 6.0 ± 0.006 and is also stable under different storage conditions. Cell viability was improved in a dose-dependent manner on SH-SY5Y and RAW 264.7 cell lines. In addition, NanoSECA significantly reduced the AChE activity, suppressing the level of proinflammatory mediators and oxidative stress. Moreover, NanoSECA showed high BBB permeation with a high value of experimental permeability to cross the BBB. Thus, NanoSECA could efficiently potentiate the central nervous system (CNS) therapeutic activities through enhanced penetration of BBB. These nano-delivery systems are crucial to unlock the full potential of C. asiatica for treating numerous CNS disorders.
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12
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Kunjumon R, Viswanathan G, Jayasree DV, Biju PG, Prakash P, Sasidharan BCP, Baby S. Anti-excitotoxicity and neuroprotective action of asiaticoside encapsulated polymeric nanoparticles in pilocarpine rodent seizure model. CAN J CHEM 2022. [DOI: 10.1139/cjc-2021-0281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Asiaticoside (ASI), an ursane-type triterpenoid saponin, isolated from the memory enhancing herb Centella asiatica, is known for its neuroprotective activities. Here the anti-excitotoxicity and neuro protective effects of ASI encapsulated alginate chitosan nanoparticles (ACNPs) were evaluated in pilocarpine (PC) induced seizure in mice model. ACNPs were prepared by ionic gelation-polyelectrolyte complex method and their physicochemical characterization was carried out by TEM, SEM, DLS, XRD and FT-IR. Subsequently their encapsulation efficiency (EE), in vitro drug release, cell viability, seizure score, DNA fragmentation and mRNA expression of regulatory stress markers were evaluated. Membrane permeability of ACNPs in brain, histopathology and biological TEM and SEM analyses were also carried out. TEM of ACNPs showed spherical morphology with a particle size of 200-400 nm. DLS of ACNPs displayed an average size of 486.2 nm with polydispersity index (PDI) of 0.567 and zeta potential of -14.1 mV. ACNPs achieved high EE (> 90%) and controlled release (10%). Biological evaluation studies revealed ACNPs as non-toxic to mouse neural stem cells (mNSCs). They displayed enhanced brain permeability and attenuated seizure. Our results confirmed ACNPs as effective in crossing the brain membrane barrier and mitigating seizure severity induced by PC.
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Affiliation(s)
- Renju Kunjumon
- Jawaharlal Nehru Tropical Botanic Garden and Research Institute, 332862, Phytochemistry and Phytopharmacology Division, Thiruvananthapuram, Kerala, India
- University of Kerala, 29263, Thiruvananthapuram, Kerala, India
| | - Gayathri Viswanathan
- Jawaharlal Nehru Tropical Botanic Garden and Research Institute, 332862, Phytochemistry and Phytopharmacology Division, Thiruvananthapuram, Kerala, India
| | | | | | - Prabha Prakash
- Cochin University of Science and Technology, 29288, Department of Biotechnology, Kochi, Kerala, India
| | - Baby Chakrapani Pulikkaparambil Sasidharan
- Cochin University of Science and Technology, 29288, Department of Biotechnology, Kochi, Kerala, India
- Cochin University of Science and Technology, 29288, Inter-University Centre for Nanomaterials and Devices (IUCND), Kochi, Kerala, India
| | - Sabulal Baby
- Jawaharlal Nehru Tropical Botanic Garden and Research Institute, 332862, Thiruvananthapuram, Kerala, India
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13
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Hambali A, Kumar J, Hashim NFM, Maniam S, Mehat MZ, Cheema MS, Mustapha M, Adenan MI, Stanslas J, Hamid HA. Hypoxia-Induced Neuroinflammation in Alzheimer's Disease: Potential Neuroprotective Effects of Centella asiatica. Front Physiol 2021; 12:712317. [PMID: 34721056 PMCID: PMC8551388 DOI: 10.3389/fphys.2021.712317] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 09/13/2021] [Indexed: 12/11/2022] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder that is characterised by the presence of extracellular beta-amyloid fibrillary plaques and intraneuronal neurofibrillary tau tangles in the brain. Recurring failures of drug candidates targeting these pathways have prompted research in AD multifactorial pathogenesis, including the role of neuroinflammation. Triggered by various factors, such as hypoxia, neuroinflammation is strongly linked to AD susceptibility and/or progression to dementia. Chronic hypoxia induces neuroinflammation by activating microglia, the resident immune cells in the brain, along with an increased in reactive oxygen species and pro-inflammatory cytokines, features that are common to many degenerative central nervous system (CNS) disorders. Hence, interests are emerging on therapeutic agents and plant derivatives for AD that target the hypoxia-neuroinflammation pathway. Centella asiatica is one of the natural products reported to show neuroprotective effects in various models of CNS diseases. Here, we review the complex hypoxia-induced neuroinflammation in the pathogenesis of AD and the potential application of Centella asiatica as a therapeutic agent in AD or dementia.
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Affiliation(s)
- Aqilah Hambali
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Jaya Kumar
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Malaysia
| | - Nur Fariesha Md Hashim
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Sandra Maniam
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Muhammad Zulfadli Mehat
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Manraj Singh Cheema
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Muzaimi Mustapha
- Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | | | - Johnson Stanslas
- Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Hafizah Abdul Hamid
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
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14
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Wong JH, Barron AM, Abdullah JM. Mitoprotective Effects of Centella asiatica (L.) Urb.: Anti-Inflammatory and Neuroprotective Opportunities in Neurodegenerative Disease. Front Pharmacol 2021; 12:687935. [PMID: 34267660 PMCID: PMC8275827 DOI: 10.3389/fphar.2021.687935] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/17/2021] [Indexed: 11/13/2022] Open
Abstract
Natural products remain a crucial source of drug discovery for accessible and affordable solutions for healthy aging. Centella asiatica (L.) Urb. (CA) is an important medicinal plant with a wide range of ethnomedicinal uses. Past in vivo and in vitro studies have shown that the plant extract and its key components, such as asiatic acid, asiaticoside, madecassic acid and madecassoside, exhibit a range of anti-inflammatory, neuroprotective, and cognitive benefits mechanistically linked to mitoprotective and antioxidant properties of the plant. Mitochondrial dysfunction and oxidative stress are key drivers of aging and neurodegenerative disease, including Alzheimer’s disease and Parkinson’s disease. Here we appraise the growing body of evidence that the mitoprotective and antioxidative effects of CA may potentially be harnessed for the treatment of brain aging and neurodegenerative disease.
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Affiliation(s)
- Jia Hui Wong
- Neurobiology of Aging and Disease Laboratory, Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore
| | - Anna M Barron
- Neurobiology of Aging and Disease Laboratory, Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore
| | - Jafri Malin Abdullah
- Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Kota Bharu, Malaysia.,Brain & Behaviour Cluster and Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Kota Bharu, Malaysia
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