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Lee JY, Wong CY, Koh RY, Lim CL, Kok YY, Chye SM. Natural Bioactive Compounds from Macroalgae and Microalgae for the Treatment of Alzheimer's Disease: A Review. THE YALE JOURNAL OF BIOLOGY AND MEDICINE 2024; 97:205-224. [PMID: 38947104 PMCID: PMC11202106 DOI: 10.59249/jnkb9714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Neuroinflammation, toxic protein aggregation, oxidative stress, and mitochondrial dysfunction are key pathways in neurodegenerative diseases like Alzheimer's disease (AD). Targeting these mechanisms with antioxidants, anti-inflammatory compounds, and inhibitors of Aβ formation and aggregation is crucial for treatment. Marine algae are rich sources of bioactive compounds, including carbohydrates, phenolics, fatty acids, phycobiliproteins, carotenoids, fatty acids, and vitamins. In recent years, they have attracted interest from the pharmaceutical and nutraceutical industries due to their exceptional biological activities, which include anti-inflammation, antioxidant, anticancer, and anti-apoptosis properties. Multiple lines of evidence have unveiled the potential neuroprotective effects of these multifunctional algal compounds for application in treating and managing AD. This article will provide insight into the molecular mechanisms underlying the neuroprotective effects of bioactive compounds derived from algae based on in vitro and in vivo models of neuroinflammation and AD. We will also discuss their potential as disease-modifying and symptomatic treatment strategies for AD.
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Affiliation(s)
- Jia Yee Lee
- School of Health Sciences, International Medical
University, Kuala Lumpur, Malaysia
| | - Chiew Yen Wong
- Department of Applied Biomedical Science and
Biotechnology, School of Health Sciences, International Medical University,
Kuala Lumpur, Malaysia
| | - Rhun Yian Koh
- Department of Applied Biomedical Science and
Biotechnology, School of Health Sciences, International Medical University,
Kuala Lumpur, Malaysia
| | - Chooi Ling Lim
- Department of Applied Biomedical Science and
Biotechnology, School of Health Sciences, International Medical University,
Kuala Lumpur, Malaysia
| | - Yih Yih Kok
- Department of Applied Biomedical Science and
Biotechnology, School of Health Sciences, International Medical University,
Kuala Lumpur, Malaysia
| | - Soi Moi Chye
- Department of Applied Biomedical Science and
Biotechnology, School of Health Sciences, International Medical University,
Kuala Lumpur, Malaysia
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Li Z, You L, Du X, Yang H, Yang L, Zhu Y, Li L, Jiang Z, Li Q, He N, Lin R, Chen Z, Ni H. New strategies to study in depth the metabolic mechanism of astaxanthin biosynthesis in Phaffia rhodozyma. Crit Rev Biotechnol 2024:1-19. [PMID: 38797672 DOI: 10.1080/07388551.2024.2344578] [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: 08/19/2023] [Accepted: 04/04/2024] [Indexed: 05/29/2024]
Abstract
Astaxanthin, a ketone carotenoid known for its high antioxidant activity, holds significant potential for application in nutraceuticals, aquaculture, and cosmetics. The increasing market demand necessitates a higher production of astaxanthin using Phaffia rhodozyma. Despite extensive research efforts focused on optimizing fermentation conditions, employing mutagenesis treatments, and utilizing genetic engineering technologies to enhance astaxanthin yield in P. rhodozyma, progress in this area remains limited. This review provides a comprehensive summary of the current understanding of rough metabolic pathways, regulatory mechanisms, and preliminary strategies for enhancing astaxanthin yield. However, further investigation is required to fully comprehend the intricate and essential metabolic regulation mechanism underlying astaxanthin synthesis. Specifically, the specific functions of key genes, such as crtYB, crtS, and crtI, need to be explored in detail. Additionally, a thorough understanding of the action mechanism of bifunctional enzymes and alternative splicing products is imperative. Lastly, the regulation of metabolic flux must be thoroughly investigated to reveal the complete pathway of astaxanthin synthesis. To obtain an in-depth mechanism and improve the yield of astaxanthin, this review proposes some frontier methods, including: omics, genome editing, protein structure-activity analysis, and synthetic biology. Moreover, it further elucidates the feasibility of new strategies using these advanced methods in various effectively combined ways to resolve these problems mentioned above. This review provides theory and method for studying the metabolic pathway of astaxanthin in P. rhodozyma and the industrial improvement of astaxanthin, and provides new insights into the flexible combined use of multiple modern advanced biotechnologies.
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Affiliation(s)
- Zhipeng Li
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian Province, People's Republic of China
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering Technology, Xiamen, Fujian Province, People's Republic of China
- Research Center of Food Biotechnology of Xiamen City, Xiamen, Fujian Province, People's Republic of China
- Food Microbial and Enzyme Engineering Research Center of Fujian University, People's Republic of China
| | - Li You
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian Province, People's Republic of China
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering Technology, Xiamen, Fujian Province, People's Republic of China
- Research Center of Food Biotechnology of Xiamen City, Xiamen, Fujian Province, People's Republic of China
- Food Microbial and Enzyme Engineering Research Center of Fujian University, People's Republic of China
| | - Xiping Du
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian Province, People's Republic of China
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering Technology, Xiamen, Fujian Province, People's Republic of China
- Research Center of Food Biotechnology of Xiamen City, Xiamen, Fujian Province, People's Republic of China
- Food Microbial and Enzyme Engineering Research Center of Fujian University, People's Republic of China
| | - Haoyi Yang
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian Province, People's Republic of China
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering Technology, Xiamen, Fujian Province, People's Republic of China
- Research Center of Food Biotechnology of Xiamen City, Xiamen, Fujian Province, People's Republic of China
- Food Microbial and Enzyme Engineering Research Center of Fujian University, People's Republic of China
| | - Liang Yang
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian Province, People's Republic of China
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering Technology, Xiamen, Fujian Province, People's Republic of China
- Research Center of Food Biotechnology of Xiamen City, Xiamen, Fujian Province, People's Republic of China
- Food Microbial and Enzyme Engineering Research Center of Fujian University, People's Republic of China
| | - Yanbing Zhu
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian Province, People's Republic of China
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering Technology, Xiamen, Fujian Province, People's Republic of China
- Research Center of Food Biotechnology of Xiamen City, Xiamen, Fujian Province, People's Republic of China
- Food Microbial and Enzyme Engineering Research Center of Fujian University, People's Republic of China
| | - Lijun Li
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian Province, People's Republic of China
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering Technology, Xiamen, Fujian Province, People's Republic of China
- Research Center of Food Biotechnology of Xiamen City, Xiamen, Fujian Province, People's Republic of China
- Food Microbial and Enzyme Engineering Research Center of Fujian University, People's Republic of China
| | - Zedong Jiang
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian Province, People's Republic of China
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering Technology, Xiamen, Fujian Province, People's Republic of China
- Research Center of Food Biotechnology of Xiamen City, Xiamen, Fujian Province, People's Republic of China
- Food Microbial and Enzyme Engineering Research Center of Fujian University, People's Republic of China
| | - Qingbiao Li
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian Province, People's Republic of China
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering Technology, Xiamen, Fujian Province, People's Republic of China
- Research Center of Food Biotechnology of Xiamen City, Xiamen, Fujian Province, People's Republic of China
- Food Microbial and Enzyme Engineering Research Center of Fujian University, People's Republic of China
| | - Ning He
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian Province, People's Republic of China
| | - Rui Lin
- College of Ocean and Earth Sciences, and Research and Development Center for Ocean Observation Technologies, Xiamen University, Xiamen, China
| | - Zhen Chen
- College of Life Science, Xinyang Normal University, Xinyang, China
| | - Hui Ni
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian Province, People's Republic of China
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering Technology, Xiamen, Fujian Province, People's Republic of China
- Research Center of Food Biotechnology of Xiamen City, Xiamen, Fujian Province, People's Republic of China
- Food Microbial and Enzyme Engineering Research Center of Fujian University, People's Republic of China
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Ma X, Wu M, Chen Z, Cao F, Zhong T, Luo Z, Shao Z, Zhang Y, Chen L, Zhang Z. Phenylspirodrimane with Moderate Reversal Effect of Multidrug Resistance Isolated from the Deep-Sea Fungus Stachybotrys sp. 3A00409. Molecules 2024; 29:1685. [PMID: 38611964 PMCID: PMC11013241 DOI: 10.3390/molecules29071685] [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: 03/04/2024] [Revised: 03/27/2024] [Accepted: 04/05/2024] [Indexed: 04/14/2024] Open
Abstract
Two new phenylspirodrimanes, stachybotrins K and L (1 and 2), together with eight known analogues (3-10), were isolated from deep-sea-derived Stachybotrys sp. MCCC 3A00409. Their structures were determined by extensive NMR data and mass spectroscopic analysis. Absolute configurations of new compounds were determined through a comparison of their circular dichroism (CD) spectra with other reported compounds. The possible reversal effects of all compounds were assayed in the resistant cancer cell lines. Stachybotrysin B (8) can reverse multidrug resistance (MDR) in ABCB1-overexpression cells (KBv200, Hela/VCR) at the non-cytotoxic concentration. Doxorubicin accumulation assay and molecular-docking analysis reveal that the mechanism of its reversal MDR effect may be related to the increase in the intracellular concentration of substrate anticancer drugs.
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Affiliation(s)
- Xinhua Ma
- Fujian Provincial Key Laboratory of Pharmacology of Natural Medicine, School of Pharmacy, Fujian Medical University, Fuzhou 350122, China; (X.M.); (M.W.); (Z.C.); (F.C.); (Y.Z.)
| | - Min Wu
- Fujian Provincial Key Laboratory of Pharmacology of Natural Medicine, School of Pharmacy, Fujian Medical University, Fuzhou 350122, China; (X.M.); (M.W.); (Z.C.); (F.C.); (Y.Z.)
- Fuzhou Second Hospital, Fuzhou 350122, China
| | - Zhenwei Chen
- Fujian Provincial Key Laboratory of Pharmacology of Natural Medicine, School of Pharmacy, Fujian Medical University, Fuzhou 350122, China; (X.M.); (M.W.); (Z.C.); (F.C.); (Y.Z.)
| | - Fan Cao
- Fujian Provincial Key Laboratory of Pharmacology of Natural Medicine, School of Pharmacy, Fujian Medical University, Fuzhou 350122, China; (X.M.); (M.W.); (Z.C.); (F.C.); (Y.Z.)
| | - Tianhua Zhong
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Sources, Xiamen 361005, China; (T.Z.); (Z.L.); (Z.S.)
| | - Zhuhua Luo
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Sources, Xiamen 361005, China; (T.Z.); (Z.L.); (Z.S.)
| | - Zongze Shao
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Sources, Xiamen 361005, China; (T.Z.); (Z.L.); (Z.S.)
| | - Yonghong Zhang
- Fujian Provincial Key Laboratory of Pharmacology of Natural Medicine, School of Pharmacy, Fujian Medical University, Fuzhou 350122, China; (X.M.); (M.W.); (Z.C.); (F.C.); (Y.Z.)
| | - Limin Chen
- Fujian Provincial Key Laboratory of Pharmacology of Natural Medicine, School of Pharmacy, Fujian Medical University, Fuzhou 350122, China; (X.M.); (M.W.); (Z.C.); (F.C.); (Y.Z.)
| | - Zhiqiang Zhang
- Fujian Provincial Key Laboratory of Pharmacology of Natural Medicine, School of Pharmacy, Fujian Medical University, Fuzhou 350122, China; (X.M.); (M.W.); (Z.C.); (F.C.); (Y.Z.)
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Savall ASP, de Mello JD, Fidelis EM, Comis-Neto AA, Nepomuceno MR, Pacheco CDO, Haas SE, Pinton S. Nanoencapsulated Curcumin: Enhanced Efficacy in Reversing Memory Loss in An Alzheimer Disease Model. Brain Sci 2024; 14:130. [PMID: 38391705 PMCID: PMC10886961 DOI: 10.3390/brainsci14020130] [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: 12/20/2023] [Revised: 01/16/2024] [Accepted: 01/22/2024] [Indexed: 02/24/2024] Open
Abstract
Investigating new drugs or formulations that target Alzheimer disease (AD) is critical for advancing therapeutic interventions. Therefore, this study aimed to assess the effectiveness of nanoencapsulated curcumin (NC Curc) in alleviating memory impairment, oxidative stress, and neuroinflammation in a validated AD model. Male Wistar rats were given bilateral intracerebroventricular injections of either saline or streptozotocin (STZ) (3 mg/3 µL/site) to establish the AD model (day 0). On day 22, daily oral administrations of curcumin (6 mg/kg), NC Curc (6 mg/kg), or a vehicle (unloaded NC) were initiated and continued for 14 days. NC Curc significantly reversed memory deficits in object recognition and inhibitory avoidance tests induced by STZ. Both formulations of curcumin attenuated elevated acetylcholinesterase activity caused by STZ. Importantly, NC Curc alone effectively mitigated STZ-induced oxidative stress. Additionally, NC Curc treatment normalized GFAP levels, suggesting a potential reduction in neuroinflammation in STZ-treated rats. Our findings indicate that NC Curc improves memory in an AD rat model, highlighting its enhanced therapeutic effects compared to unencapsulated curcumin. This research significantly contributes to understanding the therapeutic and neurorestorative potential of NC Curc in AD, particularly in reversing pathophysiological changes.
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Affiliation(s)
- Anne Suély Pinto Savall
- Research Group on Biochemistry and Toxicology in Eukaryotes, Federal University of Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Jhuly Dorneles de Mello
- Research Group on Biochemistry and Toxicology in Eukaryotes, Federal University of Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Eduarda Monteiro Fidelis
- Research Group on Biochemistry and Toxicology in Eukaryotes, Federal University of Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Antonio Alvenir Comis-Neto
- Research Group on Biochemistry and Toxicology in Eukaryotes, Federal University of Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Maria Regina Nepomuceno
- Research Group on Biochemistry and Toxicology in Eukaryotes, Federal University of Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Camila de Oliveira Pacheco
- Laboratory of Pharmacology and Pharmacometrics, Federal University of Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Sandra Elisa Haas
- Laboratory of Pharmacology and Pharmacometrics, Federal University of Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Simone Pinton
- Research Group on Biochemistry and Toxicology in Eukaryotes, Federal University of Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
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Yan T, Ding F, Zhang Y, Wang Y, Wang Y, Zhang Y, Zhu F, Zhang G, Zheng X, Jia G, Zhou F, Zhao Y, Zhao Y. Astaxanthin Inhibits H 2O 2-Induced Excessive Mitophagy and Apoptosis in SH-SY5Y Cells by Regulation of Akt/mTOR Activation. Mar Drugs 2024; 22:57. [PMID: 38393028 PMCID: PMC10890442 DOI: 10.3390/md22020057] [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: 12/14/2023] [Revised: 01/15/2024] [Accepted: 01/18/2024] [Indexed: 02/25/2024] Open
Abstract
Oxidative stress, which damages cellular components and causes mitochondrial dysfunction, occurs in a variety of human diseases, including neurological disorders. The clearance of damaged mitochondria via mitophagy maintains the normal function of mitochondria and facilitates cell survival. Astaxanthin is an antioxidant known to have neuroprotective effects, but the underlying mechanisms remain unclear. This study demonstrated that astaxanthin inhibited H2O2-induced apoptosis in SH-SY5Y cells by ameliorating mitochondrial damage and enhancing cell survival. H2O2 treatment significantly reduced the levels of activated Akt and mTOR and induced mitophagy, while pretreatment with astaxanthin prevented H2O2-induced inhibition of Akt and mTOR and attenuated H2O2-induced mitophagy. Moreover, the inhibition of Akt attenuated the protective effect of astaxanthin against H2O2-induced cytotoxicity. Taken together, astaxanthin might inhibit H2O2-induced apoptosis by protecting mitochondrial function and reducing mitophagy. The results also indicate that the Akt/mTOR signaling pathway was critical for the protection of astaxanthin against H2O2-induced cytotoxicity. The results from the present study suggest that astaxanthin can reduce neuronal oxidative injury and may have the potential to be used for preventing neurotoxicity associated with neurodegenerative diseases.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Yan Zhao
- Department of Bioengineering, Harbin Institute of Technology, Weihai 264209, China; (T.Y.); (F.D.); (Y.Z.); (Y.W.); (Y.W.); (Y.Z.); (F.Z.); (G.Z.); (X.Z.); (G.J.); (F.Z.); (Y.Z.)
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Liu N, Lyu X, Zhang X, Zhang F, Chen Y, Li G. Astaxanthin attenuates cognitive deficits in Alzheimer's disease models by reducing oxidative stress via the SIRT1/PGC-1α signaling pathway. Cell Biosci 2023; 13:173. [PMID: 37710272 PMCID: PMC10503143 DOI: 10.1186/s13578-023-01129-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 09/07/2023] [Indexed: 09/16/2023] Open
Abstract
OBJECTIVE Oxidative stress plays a pivotal role in neurodegenerative diseases. Astaxanthin (AST) can play a neuroprotective role owing to its long-chain conjugated unsaturated double bond, which imparts potent antioxidant, anti-neuroinflammatory, and anti-apoptotic properties. However, the biological mechanisms underlying these effects remain unknown. Therefore, this study aimed to investigate and validate the protective effect of AST on neuronal senescence and apoptosis caused by oxidative stress induced by Aβ25-35 peptide, with the goal of preventing the onset of cognitive dysfunction. METHODS Alzheimer's disease models comprising ICR mice and PC12 cells were established using Aβ25-35. The Morris water maze test was used to assess mouse behavior. Nissl staining revealed morphological changes in the mouse hippocampal neurons. To elucidate the mechanism of action of AST, ICR mice and PC12 cells were treated with the silent information regulator 1 (SIRT1) inhibitor nicotinamide (NAM). Additionally, immunofluorescence, western blotting, and reverse transcription polymerase chain reaction were used to evaluate changes in the expression of Bcl-2 and Bax in the mouse hippocampus, and SIRT1/PGC-1α signaling pathway proteins were detected. Moreover, the oxidative stress markers in ICR mice and PC12 cells were evaluated. Further, CCK-8 assays, Annexin V/PI double staining, and β-galactosidase activity assays were performed in PC12 cells to evaluate the anti-senescence and apoptotic effects of AST. RESULTS In vivo experiments showed that Aβ25-35 impaired cognitive function, promoted morphological changes in hippocampal neurons, decreased Bcl-2 expression, increased Bax expression, decreased superoxide dismutase and GSH-px levels, and increased reactive oxygen species and malondialdehyde levels. Conversely, AST alleviated the impact of Aβ25-35 in mice, with reversed outcomes. NAM administration reduced SIRT1 and PGC-1α expression in the hippocampus. This decrease was accompanied by cognitive dysfunction and hippocampal neuron atrophy, which were also evident in the mice. Additionally, in vitro experiments showed that Aβ25-35 could promote oxidative stress and induce the senescence and apoptosis of PC12 cells. Nonetheless, AST treatment counteracted this effect by inhibiting oxidative stress and altering the state of PC12 cells. Notably, the Aβ + NAM group exhibited the most significant rates of senescence and apoptosis in PC12 cells following NAM treatment. CONCLUSION AST can improve cellular senescence and apoptosis mediated by oxidative stress via the SIRT1/PGC-1α signaling pathway and plays a vital role in inhibiting neuronal senescence and apoptosis and enhancing cognitive ability.
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Affiliation(s)
- Ning Liu
- Department of Radiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China
| | - Xiaohong Lyu
- Department of Radiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China.
| | - Xianglin Zhang
- Department of Radiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China
| | - Fan Zhang
- Department of Neurology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China
| | - Yiming Chen
- Department of Radiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China
| | - Gang Li
- Department of Radiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China
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Shehata MK, Ismail AA, Kamel MA. Combined Donepezil with Astaxanthin via Nanostructured Lipid Carriers Effective Delivery to Brain for Alzheimer's Disease in Rat Model. Int J Nanomedicine 2023; 18:4193-4227. [PMID: 37534058 PMCID: PMC10391537 DOI: 10.2147/ijn.s417928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 07/19/2023] [Indexed: 08/04/2023] Open
Abstract
Introduction Donepezil (DPL), a specific acetylcholinesterase inhibitor, is used as a first-line treatment to improve cognitive deficits in Alzheimer's disease (AD) and it might have a disease modifying effect. Astaxanthin (AST) is a natural potent antioxidant with neuroprotective, anti-amyloidogenic, anti-apoptotic, and anti-inflammatory effects. This study aimed to prepare nanostructured lipid carriers (NLCs) co-loaded with donepezil and astaxanthin (DPL/AST-NLCs) and evaluate their in vivo efficacy in an AD-like rat model 30 days after daily intranasal administration. Methods DPL/AST-NLCs were prepared using a hot high-shear homogenization technique, in vitro examined for their physicochemical parameters and in vivo evaluated. AD induction in rats was performed by aluminum chloride. The cortex and hippocampus were isolated from the brain of rats for biochemical testing and histopathological examination. Results DPL/AST-NLCs showed z-average diameter 149.9 ± 3.21 nm, polydispersity index 0.224 ± 0.017, zeta potential -33.7 ± 4.71 mV, entrapment efficiency 81.25 ±1.98% (donepezil) and 93.85 ±1.75% (astaxanthin), in vitro sustained release of both donepezil and astaxanthin for 24 h, spherical morphology by transmission electron microscopy, and they were stable at 4-8 ± 2°C for six months. Differential scanning calorimetry revealed that donepezil and astaxanthin were molecularly dispersed in the NLC matrix in an amorphous state. The DPL/AST-NLC-treated rats showed significantly lower levels of nuclear factor-kappa B, malondialdehyde, β-site amyloid precursor protein cleaving enzyme-1, caspase-3, amyloid beta (Aβ1‑42), and acetylcholinesterase, and significantly higher levels of glutathione and acetylcholine in the cortex and hippocampus than the AD-like untreated rats and that treated with donepezil-NLCs. DPL/AST-NLCs showed significantly higher anti-amyloidogenic, antioxidant, anti-acetylcholinesterase, anti-inflammatory, and anti-apoptotic effects, resulting in significant improvement in the cortical and hippocampal histopathology. Conclusion Nose-to-brain delivery of DPL/AST-NLCs is a promising strategy for the management of AD.
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Affiliation(s)
- Mustafa K Shehata
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Assem A Ismail
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Maher A Kamel
- Department of Biochemistry, Medical Research Institute, Alexandria University, Alexandria, Egypt
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Oliyaei N, Moosavi-Nasab M, Tanideh N, Iraji A. Multiple roles of fucoxanthin and astaxanthin against Alzheimer's disease: Their pharmacological potential and therapeutic insights. Brain Res Bull 2023; 193:11-21. [PMID: 36435362 DOI: 10.1016/j.brainresbull.2022.11.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 11/14/2022] [Accepted: 11/22/2022] [Indexed: 11/24/2022]
Abstract
Alzheimer's disease (AD) is the most devastating neurodegenerative disorder affecting the elderly. The exact pathology of AD is not yet fully understood and several hallmarks such as the deposition of amyloid-β, tau hyperphosphorylation, and neuroinflammation, as well as mitochondrial, metal ions, autophagy, and cholinergic dysfunctions are known as pathologic features of AD. Since no definitive treatment has been proposed to target AD to date, many natural products have shown promising preventive potentials and contributed to slowing down the disease progression. Algae is a promising source of novel bioactive substances known to prevent neurodegenerative disorders including AD. In this context, fucoxanthin and astaxanthin, natural carotenoids abundant in algae, has shown to possess neuroprotective properties through antioxidant, and anti-inflammatory characteristics in modulating the symptoms of AD. Fucoxanthin and astaxanthin exhibit anti-AD activities by inhibition of AChE, BuChE, BACE-1, and MAO, suppression of Aβ accumulation. Also, fucoxanthin and astaxanthin inhibit apoptosis induced by Aβ1-42 and H2O2-induced cytotoxicity, and modulate the antioxidant enzymes (SOD and CAT), through inhibition of the ERK pathway. Moreover, cellular and animal studies on the beneficial effects of fucoxanthin and astaxanthin against AD were also reviewed. The potential role of fucoxanthin and astaxanthin exhibits great efficacy for the management of AD by acting on multiple targets.
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Affiliation(s)
- Najmeh Oliyaei
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Seafood Processing Research Center, School of Agriculture, Shiraz University, Shiraz, Iran
| | - Marzieh Moosavi-Nasab
- Seafood Processing Research Center, School of Agriculture, Shiraz University, Shiraz, Iran; Department of Food Science and Technology, School of Agriculture, Shiraz University, Shiraz, Iran.
| | - Nader Tanideh
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Aida Iraji
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Central Research laboratory, Shiraz University of Medical Sciences, Shiraz, Iran.
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