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Nguyen TD, Rao MK, Dhyani SP, Banks JM, Winek MA, Michalkiewicz J, Lee MY. Nucleoporin93 limits Yap activity to prevent endothelial cell senescence. Aging Cell 2024; 23:e14095. [PMID: 38348753 PMCID: PMC11019141 DOI: 10.1111/acel.14095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/08/2024] [Accepted: 01/13/2024] [Indexed: 02/27/2024] Open
Abstract
As the innermost lining of the vasculature, endothelial cells (ECs) are constantly subjected to systemic inflammation and particularly vulnerable to aging. Endothelial health is hence vital to prevent age-related vascular disease. Healthy ECs rely on the proper localization of transcription factors via nuclear pore complexes (NPCs) to govern cellular behavior. Emerging studies report NPC degradation with natural aging, suggesting impaired nucleocytoplasmic transport in age-associated EC dysfunction. We herein identify nucleoporin93 (Nup93), a crucial structural NPC protein, as an indispensable player in vascular protection. Endothelial Nup93 protein levels are significantly reduced in the vasculature of aged mice, paralleling observations of Nup93 loss when using in vitro models of EC senescence. The loss of Nup93 in human ECs induces cell senescence and promotes the expression of inflammatory adhesion molecules, where restoring Nup93 protein in senescent ECs reverses features of endothelial aging. Mechanistically, we find that both senescence and loss of Nup93 impair endothelial NPC transport, leading to nuclear accumulation of Yap and downstream inflammation. Pharmacological studies indicate Yap hyperactivation as the primary consequence of senescence and Nup93 loss in ECs. Collectively, our findings indicate that the maintenance of endothelial Nup93 is a key determinant of EC health, where aging targets endothelial Nup93 levels to impair NPC function as a novel mechanism of EC senescence and vascular aging.
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Affiliation(s)
- Tung D. Nguyen
- Department of Physiology and BiophysicsThe University of Illinois at Chicago – College of MedicineChicagoIllinoisUSA
- The Center for Cardiovascular ResearchThe University of Illinois at Chicago – College of MedicineChicagoIllinoisUSA
| | - Mihir K. Rao
- Department of Physiology and BiophysicsThe University of Illinois at Chicago – College of MedicineChicagoIllinoisUSA
| | - Shaiva P. Dhyani
- Department of Physiology and BiophysicsThe University of Illinois at Chicago – College of MedicineChicagoIllinoisUSA
| | - Justin M. Banks
- Department of Physiology and BiophysicsThe University of Illinois at Chicago – College of MedicineChicagoIllinoisUSA
| | - Michael A. Winek
- Department of Physiology and BiophysicsThe University of Illinois at Chicago – College of MedicineChicagoIllinoisUSA
| | - Julia Michalkiewicz
- Department of Physiology and BiophysicsThe University of Illinois at Chicago – College of MedicineChicagoIllinoisUSA
- The Center for Cardiovascular ResearchThe University of Illinois at Chicago – College of MedicineChicagoIllinoisUSA
| | - Monica Y. Lee
- Department of Physiology and BiophysicsThe University of Illinois at Chicago – College of MedicineChicagoIllinoisUSA
- The Center for Cardiovascular ResearchThe University of Illinois at Chicago – College of MedicineChicagoIllinoisUSA
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Nguyen TD, Rao MK, Dhyani SP, Banks JM, Winek MA, Michalkiewicz J, Lee MY. Nucleoporin93 (Nup93) Limits Yap Activity to Prevent Endothelial Cell Senescence. bioRxiv 2023:2023.11.10.566598. [PMID: 38014013 PMCID: PMC10680655 DOI: 10.1101/2023.11.10.566598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Endothelial cells (ECs) form the innermost lining of the vasculature and serve a pivotal role in preventing age-related vascular disease. Endothelial health relies on the proper nucleocytoplasmic shuttling of transcription factors via nuclear pore complexes (NPCs). Emerging studies report NPC degradation with natural aging, suggesting impaired nucleocytoplasmic transport in age-related EC dysfunction. We herein identify nucleoporin93 (Nup93), a crucial structural NPC protein, as an indispensable player for vascular protection. Endothelial Nup93 protein levels are significantly reduced in the vasculature of aged mice, paralleling observations of Nup93 loss when using in vitro models of endothelial aging. Mechanistically, we find that loss of Nup93 impairs NPC transport, leading to the nuclear accumulation of Yap and downstream inflammation. Collectively, our findings indicate maintenance of endothelial Nup93 as a key determinant of EC health, where aging targets endothelial Nup93 levels to impair NPC function as a novel mechanism for EC senescence and vascular aging.
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Flammer PD, Banks JM, Furtak TE, Durfee CG, Hollingsworth RE, Collins RT. Hybrid plasmon/dielectric waveguide for integrated silicon-on-insulator optical elements. Opt Express 2010; 18:21013-21023. [PMID: 20940996 DOI: 10.1364/oe.18.021013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
VLSI compatible optical waveguides on silicon are currently of particular interest in order to integrate optical elements onto silicon chips, and for possible replacements of electrical cross-chip/inter-core interconnects. Here we present simulation and experimental verification of a hybrid plasmon/dielectric, single-mode, single-polarization waveguide for silicon-on-insulator wafers. Its fabrication is compatible with VLSI processing techniques, and it possesses desirable properties such as the absence of birefringence and low sensitivity to surface roughness and metallic losses. The waveguide structure naturally forms an MOS capacitor, possibly useful for active device integration. Simulations predict very long propagation lengths of millimeter scale with micron scale confinement, or sub-micron scale confinement with propagation lengths still in excess of 100 microns. The waveguide may be tuned continuously between these states using standard VLSI processing. Extremely long propagation lengths have been simulated: one configuration presented here has a simulated propagation length of 34 cm.
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Affiliation(s)
- P D Flammer
- Department of Physics, Colorado School of Mines, Golden, CO 80401, USA.
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Williams AG, Withers SE, Brechany EY, Banks JM. Glutamate dehydrogenase activity in lactobacilli and the use of glutamate dehydrogenase-producing adjunct Lactobacillus spp. cultures in the manufacture of cheddar cheese. J Appl Microbiol 2007; 101:1062-75. [PMID: 17040230 DOI: 10.1111/j.1365-2672.2006.03017.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIMS The study was undertaken to investigate the occurrence of glutamate dehydrogenase activity in different species of lactobacilli, and to determine, in a series of cheese-making trials, the effects of glutamate dehydrogenase-producing adjunct cultures on sensory attribute development during the maturation of cheddar cheese. METHODS AND RESULTS The presence of dehydrogenase activity with glutamate as substrate was monitored in cell lysates of >100 strains from 30 different species of lactobacilli using a qualitative colorimetric plate screening assay. Activity was detectable in 25 of the 29 representative species obtained from culture collections and in 12 of the 13 non-starter species isolated from cheese. There were pronounced interspecies and strain differences in the occurrence, level and pyridine nucleotide specificity of the glutamate dehydrogenase activity detected. Among the non-starter lactobacilli the highest frequency of enzyme occurrence and activity was detected in the Lactobacillus plantarum isolates. The establishment of glutamate dehydrogenase-producing adjunct strains in the predominant population of lactobacilli in the cheese curd affected the formation of a number of volatile compounds in ripening cheddar cheese, while the presence of Lact. plantarum strains, in particular, was associated with an intensification and acceleration of aroma and flavour development during the maturation period. CONCLUSIONS Glutamate dehydrogenase formation by lactobacilli is a strain-dependent metabolic attribute, and adjunct cultures expressing the activity that are able to proliferate during cheese ripening have a positive impact on the rate of development and the intensity of cheddar cheese aroma and flavour development. SIGNIFICANCE AND IMPACT OF THE STUDY It has been demonstrated that some strains of glutamate dehydrogenase-producing lactobacilli have potential use as adjunct cultures to accelerate and intensify aroma and flavour formation during the manufacture of cheddar and, by analogy, other similar varieties of cheese. The importance of phenotypic discriminative monitoring of the dominant lactobacilli present during ripening to confirm adjunct establishment and population complexity was highlighted as was the requirement to establish the metabolic attributes of the non-starter population in uninoculated control cheeses in comparative trials.
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Williams AG, Noble J, Banks JM. The effect of alpha-ketoglutaric acid on amino acid utilization by nonstarter Lactobacillus spp. isolated from Cheddar cheese. Lett Appl Microbiol 2004; 38:289-95. [PMID: 15214727 DOI: 10.1111/j.1472-765x.2004.01484.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
AIMS To examine the effect of alpha-ketoglutaric acid (alpha-KG) on the utilization and catabolism of amino acids by strains of nonstarter lactobacilli isolated from Cheddar cheese. METHODS AND RESULTS The effect of alpha-KG in the growth medium of nonstarter lactobacilli on amino acid metabolism, catabolite levels, peptide hydrolase and aminotransferase activities was examined. The pattern of amino acid utilization, catabolite formation and aminotransferase activity was affected by keto acid. CONCLUSIONS Amino acid conversion into cheese aroma and flavour compounds by nonstarter lactobacilli is enhanced in the presence of alpha-ketoglutarate. SIGNIFICANCE AND IMPACT OF THE STUDY Increasing the availability of alpha-ketoglutarate in cheese offers a possible method of reducing the maturation period by accelerating the rate of character compound formation from amino acids by the nonstarter lactobacilli.
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Affiliation(s)
- A G Williams
- Charis Food Research, Hannah Research Institute, Ayr, UK.
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Williams AG, Beattie SH, Banks JM. Enzymes involved in flavour formation by bacteria isolated from the smear population of surface-ripened cheese. INT J DAIRY TECHNOL 2004. [DOI: 10.1111/j.1471-0307.2004.00115.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bennett AR, Banks JM. Business planning health-check questionnaire: a survey of first, second, third and fourth wave NHS Trusts. Health Serv Manage Res 1999; 12:25-35. [PMID: 10345915 DOI: 10.1177/095148489901200103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This paper reports the results of primary research which was carried out in July 1995 with respect to business planning within first, second, third and fourth wave National Health Service (NHS) Trusts. The purpose of the research was to examine current practice in these Trusts in three areas--namely, the levels of responsibility for business planning in general, the business planning processes applied by these Trusts, and the tools and techniques used by business planning managers in the compilation of business plans. The research, based on a 37.5% response rate, concludes that, as a general rule, business planning in first, second, third and fourth wave NHS Trusts tends to be a board-level activity, where senior managers have a job title which reflects this function. Secondly, the research shows that by far the greatest challenge for Trusts lies in the external marketplace. In areas such as patient needs forecasting, competitive (Trust) intelligence, purchaser and general practice fundholder requirements, data are difficult to acquire. Finally, the evidence suggests that there is a significant gap between what is regarded as business planning practice in the NHS and what is actually applied as best practice. The report concludes that business planning in the NHS Trusts sampled appears to be an art rather than a science, and that many assumptions made by business planning managers are founded on qualitative information rather than on specific, measurable data derived from the external and internal market.
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Affiliation(s)
- A R Bennett
- Anglia Polytechnic University, Anglia Business School, Essex, UK
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Abstract
Eye injuries in children are frequently evaluated by nurse practitioners. The child with serious eye trauma is quickly assessed and referred to an ophthalmologist. However, many of the cases are managed in the ambulatory setting. Appropriate and swift management of eye trauma is essential to ensuring optimal outcome for the child. In addition, pediatric nurse practitioners play a critical role in educating children, families and the public about the prevention of eye trauma, particularly the use of protective eyewear. This article discusses the epidemiology, assessment, and prevention of eye trauma in children.
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Affiliation(s)
- D Coody
- Department of Pediatrics, University of Texas Medical School at Houston 77030, USA
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Banks JM, Law AJ, Leaver J, Horne DS. Maturation profiles of cheddar-type cheese produced from high heat treatment milk to incorporate whey protein. Adv Exp Med Biol 1995; 367:221-36. [PMID: 7572364 DOI: 10.1007/978-1-4615-1913-3_13] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Banks JM, Brechany EY, Christie WW, Hunter EA, Muir DD. Cheddar cheese flavour and chemical indices: changes during maturation. Adv Exp Med Biol 1995; 367:99-112. [PMID: 7572382 DOI: 10.1007/978-1-4615-1913-3_7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- J M Banks
- Hannah Research Institute, Scotland, UK
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Griffiths MW, Banks JM, Mcintyre L, Limond A. Some insight into the mechanism of inhibition of psychrotrophic bacterial growth in raw milk by lactic acid bacteria. INT J DAIRY TECHNOL 1991. [DOI: 10.1111/j.1471-0307.1991.tb00625.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chan LN, Grammatikakis N, Banks JM, Gerhardt EM. Chicken transferrin receptor gene: conservation 3' noncoding sequences and expression in erythroid cells. Nucleic Acids Res 1989; 17:3763-71. [PMID: 2734102 PMCID: PMC317857 DOI: 10.1093/nar/17.10.3763] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Recombinant clones of the chicken transferrin receptor gene and cDNA have been isolated and sequenced. Two highly conserved regions have been identified in the 3' noncoding sequence of the human and chicken TR gene. The conserved regions include sequences that have been shown to be involved in the iron-dependent regulation of human TR mRNA stability. These sequences can be modeled as two different types of RNA secondary structures, one containing stem-loop structures that are similar to the iron-responsive elements found in ferritin mRNA and the other being a stable, duplex/stem-loop structure. Both forms show considerable similarity between chicken and human mRNA. The expression of TR is developmentally regulated during erythroid maturation, and immature erythroid cells express exceptionally high levels of TR mRNA.
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Affiliation(s)
- L N Chan
- Department of Human Biological Chemistry and Genetics, University of Texas Medical Branch, Galveston 77550
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Little RA, Frayn KN, Randall PE, Stoner HB, Yates DW, Laing GS, Kumar S, Banks JM. Plasma catecholamines in patients with acute myocardial infarction and in cardiac arrest. Q J Med 1985; 54:133-40. [PMID: 3885296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Plasma catecholamine concentrations in cardiac arrest (ventricular fibrillation and asystole) are significantly higher than after myocardial infarction. The levels reached are well above those normally required to stimulate cardiac activity. Possible reasons for the failure of the myocardium to respond to the catecholamines are discussed and the rationale for giving more catecholamines is questioned.
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Clapperton JL, Kelly ME, Banks JM, Rook JA. The production of milk rich in protein and low in fat, the fat having a high polyunsaturated fatty acid content. J Sci Food Agric 1980; 31:1295-1302. [PMID: 6259445 DOI: 10.1002/jsfa.2740311212] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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Plueckhahn VD, Ballard BA, Banks JM, Collins RB, Flett PT. Hexachlorophene preparations in infant antiseptic skin care: benefits, risks, and the future. Med J Aust 1978; 2:555-6, 558-60. [PMID: 723700 DOI: 10.5694/j.1326-5377.1978.tb131725.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Sackner MA, Silva G, Banks JM, Watson DD, Smoak WM. Distribution of ventilation during diaphragmatic breathing in obstructive lung disease. Am Rev Respir Dis 1974; 109:331-7. [PMID: 4814695 DOI: 10.1164/arrd.1974.109.3.331] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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