In the present study, production of compactin by Penicillium brevicompactum WA 2315 was studied. In the first step, various precultural parameters were studied by substituting one factor at a time. Subsequently, the effect of maltodextrin DE 18 on compactin production was studied. The optimized parameters gave maximum compactin production of 850 mug/gds as compared with 678 mug/gds before optimization. Statistical study was performed to further improve the production and develop a robust model. An improved yield of 950 mug/gds was obtained using the conditions proposed by the experimental model. The present study emphasizes the importance of precultural and nutritional parameters on the production of compactin, and further confirms the usefulness of solid-state fermentation for the production of industrially important secondary metabolites. It also confirms that complex nitrogen sources such as oil cakes can be used for the production of compactin.
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http://dx.doi.org/10.4014/jmb.0808.466 | DOI Listing |
Int J Microbiol
December 2024
Department of Biology, Laboratory of Research and Development in Engineering Sciences, Faculty of Sciences and Techniques of Al-Hoceima, Abdelmalek Essaadi University, Tetouan 93000, Al-Hoceima, Morocco.
Research into biologically natural substances with antitumor properties, known for their potential to induce fewer side effects and exhibit specificity toward cancerous cells, remains imperative. The pressing demand for novel agents in cancer therapy underscores the intensive investigation of natural products from microorganisms. , frequently isolated from food and feed, emerges as a promising candidate against pathogenic bacteria and fungi.
View Article and Find Full Text PDFPharmaceuticals (Basel)
March 2023
Arthritis and Autoimmunity Research Center, Catholic University of Daegu, Daegu 42472, Republic of Korea.
Peroxisome proliferator-activated receptor γ (PPAR-γ) is thought to negatively regulate NLRP3 inflammasome activation. The aim of this study was to identify the inhibitory effect of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors (statins) on monosodium urate (MSU) crystal-induced NLRP3 inflammasome activation through the regulation of PPAR-γ in THP-1 cells. The expression of PPAR-γ, NLRP3, caspase-1, and interleukin-1β (IL-1β) in human monocytic THP-1 cells transfected with PPAR-γ siRNA or not and stimulated with MSU crystals was assessed using quantitative a real time-polymerase chain reaction and Western blotting.
View Article and Find Full Text PDFPlants (Basel)
February 2023
Weed Research Laboratory, Nanjing Agricultural University, Nanjing 210095, China.
Mycotoxins are one of the most important sources for the discovery of new pesticides and drugs because of their chemical structural diversity and fascinating bioactivity as well as unique novel targets. Here, the effects of four mycotoxins, fumagillin, mevastatin, radicicol, and wortmannin, on photosynthesis were investigated to identify their precise sites of action on the photosynthetic apparatus of . Our results showed that these four mycotoxins have multiple targets, acting mainly on photosystem II (PSII).
View Article and Find Full Text PDFPharmaceutics
December 2022
Department of Pharmacy, Korea University College of Pharmacy, Sejong 30019, Republic of Korea.
The Zika virus (ZIKV) remains a global health concern. Thus far, no antiviral or vaccine has been approved to prevent or treat ZIKV infection. In a previous study, we found that lipophilic statins can inhibit ZIKV production in Vero cells.
View Article and Find Full Text PDFACS Catal
December 2022
Manchester Institute of Biotechnology, School of Chemistry, The University of Manchester, Manchester M1 7DN, United Kingdom.
CYP105AS1 is a cytochrome P450 from that catalyzes monooxygenation of compactin to 6-epi-pravastatin. For fermentative production of the cholesterol-lowering drug pravastatin, the stereoselectivity of the enzyme needs to be inverted, which has been partially achieved by error-prone PCR mutagenesis and screening. In the current study, we report further optimization of the stereoselectivity by a computationally aided approach.
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