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Lu TH, Chang JW, Jhou BY, Hsu JH, Li TJ, Lee LY, Chen YL, Chang HH, Chen CC, Wu PS, Lin DPC. Preventative Effects of Cordyceps cicadae Mycelial Extracts on the Early-Stage Development of Cataracts in UVB-Induced Mice Cataract Model. Nutrients 2023; 15:3103. [PMID: 37513520 PMCID: PMC10386163 DOI: 10.3390/nu15143103] [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: 06/06/2023] [Revised: 07/04/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Cataracts, a prevalent age-related eye condition, pose a significant global health concern, with rising rates due to an aging population and increased digital device usage. In Taiwan, cataract prevalence is particularly high, reaching up to 90% among individuals aged 70 and above. The lens of the eye absorbs short-wave light, which can lead to oxidative stress in lens epithelial cells and contribute to cataract formation. Exposure to ultraviolet (UV) light further exacerbates the risk of cataracts by generating reactive oxygen species. Heat-shock proteins (HSPs), involved in protein maintenance and repair, have been linked to cataract development. Cordyceps cicadae (C. cicadae), a traditional Chinese medicine, has a long history of use and is known for its pharmacological effects. N6-(2-hydroxyethyl) adenosine (HEA), a bioactive compound found in C. cicadae, exhibits anti-inflammatory, immunomodulatory, and neuroprotective properties. Previous studies have shown that C. cicadae mycelial extracts improve dry eye disease and reduce intraocular pressure in animal models. Additionally, C. cicadae possesses antioxidant properties, which are beneficial for combating cataract formation. In this study, we aim to evaluate the preventive efficacy of C. cicadae mycelial extracts in UV-induced cataract development. By investigating the ameliorative effects of C. cicadae on eye diseases and its potential role in ocular health improvement, we hope to uncover new options for cataract prevention and provide insights into the mechanisms of action. The findings of this research could provide a novel approach for nutritional supplements targeting cataract prevention, offering potential benefits in the field of ocular health.
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Affiliation(s)
- Tsung-Han Lu
- Department of Medical Laboratory and Biotechnology, Chug Shan Medical University, Taichung City 402, Taiwan
| | - Jun-Way Chang
- The Ph.D. Program of Biotechnology and Biomedical Industry, China Medical University, Taichung City 404, Taiwan
| | - Bo-Yi Jhou
- Grape King Bio Ltd., Taoyuan City 320, Taiwan
| | | | - Tsung-Ju Li
- Grape King Bio Ltd., Taoyuan City 320, Taiwan
| | - Li-Ya Lee
- Grape King Bio Ltd., Taoyuan City 320, Taiwan
| | | | - Han-Hsin Chang
- Department of Ophthalmology, Chung Shan Medical University Hospital, Taichung City 402, Taiwan
- Department of Nutrition, Chung Shan Medical University, Taichung City 402, Taiwan
| | - Chin-Chu Chen
- Grape King Bio Ltd., Taoyuan City 320, Taiwan
- Department of Food Science, Nutrition, and Nutraceutical Biotechnology, Shih Chien University, Taipei City 104, Taiwan
- Institute of Food Science and Technology, National Taiwan University, Taipei City 106, Taiwan
- Department of Bioscience Technology, Chung Yuan Christian University, Taoyuan City 320, Taiwan
| | - Pey-Shiuan Wu
- Department of Cosmetic Science, Providence University, Taichung City 433, Taiwan
| | - David Pei-Cheng Lin
- Department of Medical Laboratory and Biotechnology, Chug Shan Medical University, Taichung City 402, Taiwan
- Department of Ophthalmology, Chung Shan Medical University Hospital, Taichung City 402, Taiwan
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Zhang Y, Gong J, Zhang L, Xue D, Liu H, Liu P. Genetic polymorphisms of HSP70 in age-related cataract. Cell Stress Chaperones 2013; 18:703-9. [PMID: 23666708 PMCID: PMC3789879 DOI: 10.1007/s12192-013-0420-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2013] [Revised: 03/08/2013] [Accepted: 03/11/2013] [Indexed: 01/17/2023] Open
Abstract
Polymorphisms have been identified in several HSP70 genes, which may affect HSP70 repair efficiency. We investigated the association of the polymorphisms in HSPA1A, HSPA1B, and HSPA1L genes in the HSPs repair pathway with the risk of cataract in a Chinese population. The study included 415 cataract patients and 386 controls. Genotyping was done by the polymerase chain reaction-restriction fragment length polymorphism method. HSPA1B 1267 A/A genotype seems to have a protective role against cataract (p = 0.014, odds ratio (OR) = 0.664, 95 % confidence intervals (CI) = 0.480-0.919), and the G allele (p = 0.057, OR = 1.216, 95 % CI = 0.999-1.479) does not seem to have a deleterious role in the development of cataract. Haplotypes with frequencies of GAT were significantly different than those of controls (p = 0.005). In HSPA1A G190C and HSPA1L T2437C polymorphisms, there were no significant differences in frequencies of the variant homozygous in patients compared to controls. We conclude that the A/A genotype of HSPA1B A1267G polymorphism seem to have a protective role against age-related cataract.
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Affiliation(s)
- Yi Zhang
- />Eye Hospital, The First Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150001 China
| | - JianYing Gong
- />Eye Hospital, The First Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150001 China
| | - Lan Zhang
- />Cardiovascular Medicine, The Fourth Affiliated Hospital, Harbin Medical University, Harbin, China
| | - DaXi Xue
- />Eye Hospital, The First Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150001 China
| | - HanRuo Liu
- />Eye Hospital, The First Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150001 China
| | - Ping Liu
- />Eye Hospital, The First Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150001 China
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Gabriele J, Pontoriero GF, Thomas N, Thomson CA, Skoblenick K, Pristupa ZB, Mishra RK. Cloning, characterization, and functional studies of a human 40-kDa catecholamine-regulated protein: implications in central nervous system disorders. Cell Stress Chaperones 2009; 14:555-67. [PMID: 19280369 PMCID: PMC2866950 DOI: 10.1007/s12192-009-0107-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2008] [Revised: 02/09/2009] [Accepted: 02/19/2009] [Indexed: 12/14/2022] Open
Abstract
Catecholamine-regulated proteins (CRPs) have been shown to bind dopamine and other structurally related catecholamines; in particular, the 40-kDa CRP (CRP40) protein has been previously cloned and functionally characterized. To determine putative human homologs, BLAST analysis using the bovine CRP40 sequence identified a human established sequence tag (EST) with significant homology (accession #BQ224193). Using this EST, we cloned a recombinant human brain CRP40-like protein, which possessed chaperone activity. Radiolabeled dopamine binding studies with recombinant human CRP40 protein demonstrated the ability of this protein to bind dopamine with low affinity and high capacity. The full-length human CRP40 nucleotide sequence was elucidated (accession #DQ480334) with RNA ligase-mediated rapid amplification of complementary DNA ends polymerase chain reaction, while Northern blot hybridization suggested that human CRP40 is an alternative splice variant of the 70-kDa mitochondrial heat shock protein, mortalin. Human SH-SY5Y neuroblastoma cells treated with the antipsychotic drug, haloperidol, exhibited a significant increase in CRP40 messenger RNA expression compared to untreated control cells, while other dopamine agonists/antagonists also altered CRP40 expression and immunolocalization. In conclusion, these results show that we have cloned a splice variant of mortalin with a novel catecholamine binding function and that this chaperone-like protein may be neuroprotective in dopamine-related central nervous system disorders.
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Affiliation(s)
- Joseph Gabriele
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada.
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Abstract
Experiments were performed to characterize a prominent nuclear matrix (NM) protein isolated from tissue cultured mouse lens epithelial cells. This NM protein was separated by SDS-PAGE and the stained gel band was analyzed by mass spectroscopy. Blast analysis of the amino acid sequence derived by mass spectroscopy revealed the presence of Lamin C in the NM of the mouse lens epithelial cells. We also examined nuclear proteins of adult and fetal human lenses. Data collected from these experiments showed the presence of Lamin C in both adult and fetal lens cells. However fetal lens cells only show Lamin C dimers, whereas adult human lens contained dimers, monomers and degraded Lamin C. Early and late passaged tissue cultured mouse lens epithelial cells also contained Lamin C in the nucleus with a preponderance of the dimer in the early passaged cells. The biological significance of the presence of dimers in human fetal lens cells and early passaged mouse lens cells is not known. However, it could suggest an enhanced docking capability of Lamin C dimers for other physiologically important nuclear proteins.
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Affiliation(s)
- M Bagchi
- Department of Anatomy and Cell Biology, Wayne State University, School of Medicine, Detroit, MI 48201, USA.
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Banh A, Bantseev V, Choh V, Moran KL, Sivak JG. The lens of the eye as a focusing device and its response to stress. Prog Retin Eye Res 2006; 25:189-206. [PMID: 16330238 DOI: 10.1016/j.preteyeres.2005.10.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The continued peripheral growth of the lens, resulting in the concentration of older tissue toward the center, has the important optical consequence of producing a lens of variable refractive index. An approach consisting of the projection of fine laser beams through excised lenses in physiological solution has been used for in vitro study of lens optical quality. By varying the separation of the incident beams and/or the wavelength characteristics of the laser used, lens refractive properties and relative transparency may be examined. In the review provided, these optical properties are correlated to lens suture anatomy, lens mitochondrial morphology and function and the function of lens heat shock proteins. In addition, lens spherical aberration is evaluated as a function of accommodation. This work can be highlighted as follows: Mammalian lens suture morphology has a direct impact on lens optical function and, while suture structure of mammalian and avian lenses are very different, they both show an age-related deterioration in morphology and focusing ability. The distribution and appearance of mitochondria of the lens epithelium and superficial fiber cells are similar in all vertebrates. Lens mitochondrial integrity is correlated to lens focusing ability, suggesting a correlation between lens optical properties and lens metabolic function. The induction of cold cataract measured optically in cultured mammalian lenses is enhanced by thermal (heat) shock and this effect is prevented by inhibiting heat shock protein production. Finally, lens accommodative function can be studied by measuring lens refractive change using a physiological model involving an intact accommodative apparatus.
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Affiliation(s)
- Alice Banh
- School of Optometry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
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Bagchi M, Katar M, Maisel H. Effect of exogenous stress on the tissue-cultured mouse lens epithelial cells. J Cell Biochem 2002; 86:302-6. [PMID: 12111999 DOI: 10.1002/jcb.10224] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The effects of heat, oxidative and osmotic stress on heat shock proteins (HSP-70(I), HSC-70, and HSP-40 of tissue cultured mouse lens epithelial cells (alphaTN-4) were investigated. The effect of stress on the heat shock transcription factor (HSF-1), and a nuclear matrix protein (NM-60) of alphaTN-4 cells was also examined. Cells were exposed to heat (45 degrees C), oxidative stress (50 mM H(2)0(2)) and osmotic (600 mM medium) shock for 30 min, and then allowed to recover for 18 h in physiological medium. Control cells were maintained at 37 degrees C in an isosmolar medium. Cellular proteins were isolated and fractionated by SDS-PAGE. Western blot was used to determine the levels of HSP and nuclear proteins. Heat stressed cells were also examined, by immunofluorescence, for the specific localization of NM-60 and HSF-1. The results revealed that both NM-60 and HSF-I were present in specific locations in normal and heat-stressed cell nuclei. Nuclei isolated immediately after stress showed localization of fluorescence near the nuclear membrane. When heat stressed cells were allowed to recuperate at 37 degrees C, most of the fluorescence were relocated in discrete areas of the nucleus. These experiments showed that alphaTN-4 cells responded to stress by overexpression of HSP-70(I) and HSP-40. This increase was not present immediately after the end of the stress period, but clearly evident at 18 h of recovery in physiological medium. Immunofluorescent data suggest that heat stress induced the localization of NM-60 and HSF-1 near the nuclear membrane.
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Affiliation(s)
- Mihir Bagchi
- Department of Anatomy/Cell Biology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA.
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Abstract
PURPOSE This study was undertaken to investigate the changes of nuclear matrix in long-term culture of rabbit limbal epithelial cells. METHODS Epithelial cells outgrown from limbal basal epithelium were serially cultivated. Nuclear matrices of early and late passages were extracted for morphologic study and protein analysis by two-dimensional gel electrophoresis and immunoblotting. RESULTS Differential growth and changes in morphology were observed in limbal epithelial cells of early and late passages. Cytokeratin type 3 was expressed in cells of later passages, indicating corneal cell differentiation during the long-term culture. These cells also showed reduced density of nuclear matrix fibrils and thinning of nuclear lamina. They were shown by two-dimensional gel electrophoresis to have lost most nuclear matrix proteins, including lamin A/C and proliferating cell nuclear antigen. However, five new protein entities were also expressed. CONCLUSION The nuclear matrix appeared to change along with limbal epithelial cell differentiation in culture. Whether such changes may affect the growth and viability of limbal cells after transplantation requires in vivo tissue analysis.
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Affiliation(s)
- Hin-Fai Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, 3rd/F Hong Kong Eye Hospital, 147K Argyle Street, Shatin, Hong Kong
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Bagchi M, Katar M, Maisel H. Heat shock proteins of adult and embryonic human ocular lenses. J Cell Biochem 2002. [DOI: 10.1002/jcb.10023] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Goto A, Doering L, Nair VD, Mishra RK. Immunohistochemical localization of a 40-kDa catecholamine regulated protein in the nigrostriatal pathway. Brain Res 2001; 900:314-9. [PMID: 11334812 DOI: 10.1016/s0006-8993(01)02282-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The 40 kDa catecholamine regulated protein (CRP40) has been shown to covalently bind catcholamines in vitro. In this report we provide evidence for CRP40 localization in the dopaminergic nigrostriatal pathway. Using double labeling immunohistochemistry, CRP40 was detected in the majority of substantia nigra pars compacta and striatal neurons. In addition, CRP40 was also present in tyrosine hydroxylase immunonegative neurons. Subcellular localization of CRP40 shows a predominant nuclear presence in striatal neurons while distinct outlining of the nucleus and cell body staining were seen more readily in nigral neurons. These findings suggest that CRP40 may have multiple functions in a variety of neurons in the central nervous system.
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Affiliation(s)
- A Goto
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, 1200 Main Street West, ON, L8N 3Z5, Hamilton, Canada
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