The chronological lifespan (CLS) of the budding yeast Saccharomyces cerevisiae is a model for the aging of post-mitotic cells in higher eukaryotes. In this study, we found that the sesquiterpene aryl ester melleolide expands the CLS of budding yeast. In contrast, melleolide compromised the CLS of the fission yeast Schizosaccharomyces pombe. This indicates that melleolide might have a potential anti-aging activity against some types of cell, and that it might be useful as a selective anti-fungal drug.
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http://dx.doi.org/10.1080/09168451.2014.885826 | DOI Listing |
Adv Biol (Weinh)
September 2024
Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea.
Indian J Microbiol
March 2023
Laboratory of Biotechnology, Dalian Institute of Chemical Physics, CAS, 457 Zhongshan Rd, Dalian, 116023 China.
Unlabelled: Glucosylglycerol (GG) is an osmolyte that protects cells from extreme conditions. It is produced by sucrose phosphorylase, an enzyme that uses sucrose and glycerol as substrate. GG protects tissue integrity in desert plants during harsh conditions and guards cyanobacteria against high salinity (halotolerant).
View Article and Find Full Text PDFBiochem Biophys Res Commun
April 2023
Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02481, Republic of Korea. Electronic address:
FK506-sensitive proline rotamase 1 protein (Fpr1p), which is a homologue of the mammalian prolyl isomerase FK506-binding protein of 12 kDa (FKBP12), is known to play important roles in protein folding and prevention of protein aggregation. Although rapamycin is known to bind to Fpr1p to inhibit Tor1p mediated-mechanistic Target Of Rapamycin (mTOR) activity, the physiological functions of Fpr1p on lifespan remain unclear. In this study, we used the eukaryotic model Saccharomyces cerevisiae to demonstrate that deletion of FPR1 reduced yeast chronological lifespan (CLS), and there was no benefit on lifespan upon rapamycin treatment, indicating that lifespan extension mechanism of rapamycin in yeast is exclusively dependent on FPR1.
View Article and Find Full Text PDFPLoS Pathog
September 2022
Department of Microbiology, Immunology, and Biochemistry, University of Tennessee Health Science Center, Memphis, Tennessee.
Pathogenic Chlamydia species are coccoid bacteria that use the rod-shape determining protein MreB to direct septal peptidoglycan synthesis during their polarized cell division process. How the site of polarized budding is determined in this bacterium, where contextual features like membrane curvature are seemingly identical, is unclear. We hypothesized that the accumulation of the phospholipid, cardiolipin (CL), in specific regions of the cell membrane induces localized membrane changes that trigger the recruitment of MreB to the site where the bud will arise.
View Article and Find Full Text PDFJ Oral Pathol Med
July 2022
Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.
Background: Cytocapsular tubes (CTs) provide membranous channels for cancer cells interconnection and multidirectional locomotion, which facilitate cancer cell transportation and metastasis. However, the clinicopathological significance of CTs has not been documented in oral squamous cell carcinoma (OSCC). Herein, we aimed to identify CTs and assess their clinicopathological significance in OSCC.
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