Shino Suzuki-Nagata, Nobuyuki Mase, Tomoki Kozuka, Jack C Ng, Tetsuya Suzuki
{"title":"Effect of ultrafine CO2 bubbles on Euglena gracilis Z growth with CO2 gas bubble size and chlorophyll content.","authors":"Shino Suzuki-Nagata, Nobuyuki Mase, Tomoki Kozuka, Jack C Ng, Tetsuya Suzuki","doi":"10.1093/bbb/zbae210","DOIUrl":"https://doi.org/10.1093/bbb/zbae210","url":null,"abstract":"<p><p>Microalgae have been explored as a viable alternative food source. Among them, Euglena gracilis stands out as a promising single-cell algae. However, the challenge lies in developing more efficient and cost-effective methods for industrial mass production of Euglena gracilis under controlled culture conditions. Our research aimed to address this by investigating the role of nanotechnology in using fine to ultra-fine bubble CO2-ranging from micrometer to nanometer size-as feeding material to promote cell harvest of E. gracilis Z in autotrophic culture conditions. Our findings suggest that feeding E. gracilis Z with fine bubble CO2 (FB-CO2) increased cell growth and chlorophyll content in autotrophic culture conditions. The promotion effect can be attributed to the provision of non-ionized carbon dioxide to the photosynthetic system, which was further enhanced by the dispersion of FB-CO2 in the culture media under acidic conditions.</p>","PeriodicalId":9175,"journal":{"name":"Bioscience, Biotechnology, and Biochemistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142913619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Co-culture of Aspergillus niger IFM 59706 and RAW264 cells enhances the production of aurasperone A with NO inhibitory activity.","authors":"Yukiko Ujie, Shun Saito, Tomoya Banno, Takashi Yaguchi, Midori A Arai","doi":"10.1093/bbb/zbae211","DOIUrl":"https://doi.org/10.1093/bbb/zbae211","url":null,"abstract":"<p><p>Most actinomycetes and fungi have a multitude of silent biosynthetic genes whose activation could lead to the production of new natural products. Our group recently designed and used a co-culture method to isolate new natural products, based on the idea that pathogens might produce immune suppressors to avoid attack by immune cells. Here, we searched for compounds produced by the co-culture of immune cells with pathogenic fungi isolated from clinical specimens. The production of dimeric naphtho-γ-pyrone aurasperone A (1) was enhanced by the co-culture of pathogenic fungus Aspergillus niger IFM 59706 and RAW264 mouse macrophage-like cells. The absolute configuration of 1 was confirmed by comparison with the reported electronic circular dichroism (ECD) spectrum. This is the first report of the inhibitory activity of 1 on nitric oxide (NO) production, an inflammatory mediator.</p>","PeriodicalId":9175,"journal":{"name":"Bioscience, Biotechnology, and Biochemistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142906599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Immunostimulatory effects of Heyndrickxia coagulans SANK70258.","authors":"Yuki Ikeda, Niya Yamashita, Naoto Ito, Natsuki Minamikawa, Hotaka Okamura, Takuya Yashiro, Masakazu Hachisu, Masanori Aida, Ryouichi Yamada, Kazuki Nagata, Chiharu Nishiyama","doi":"10.1093/bbb/zbae203","DOIUrl":"https://doi.org/10.1093/bbb/zbae203","url":null,"abstract":"<p><p>Here, we examined the immunomodulating effects of Heyndrickxia coagulans SANK70258 (SANK70258). Mouse splenocytes treated with γ-ray-irradiated SANK70258 produced higher levels of IFN-γ than those with 7 types of lactic acid bacteria. IFN-γ was mainly produced by NK cells, involving IL-12/IL-23, dendritic cells (DCs), and NFκB signaling. SANK70258 induced the release of IL-6, IL-10, and IL-12p40 from mouse DCs and the expression of cytokine genes in the human monocyte. Cytokine release from SANK70258-treated DCs was partially reduced by the knockdown of Tlr2 or Nod2, and was abolished by Myd88 knockout. DC-stimulating components of SANK70258 were enriched in ether- and butanol-insoluble peptidoglycan-related fractions. SANK70258 component induced high levels of IgA production in Peyer's patch cells, and its oral intake significantly increased intestinal IgA and IgA-expressing B cells in Peyer's patches in mice. We conclude that SANK70258 component exhibits high activity as an immunostimulant that induces the production of IFN-γ and IgA.</p>","PeriodicalId":9175,"journal":{"name":"Bioscience, Biotechnology, and Biochemistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142892211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Oral administration of astaxanthin mitigates chronological skin aging in mice.","authors":"Shuyu Liu, Yuki Manabe, Tatsuya Sugawara","doi":"10.1093/bbb/zbae205","DOIUrl":"https://doi.org/10.1093/bbb/zbae205","url":null,"abstract":"<p><p>Intrinsic skin aging is a chronological decline in skin texture and function influenced largely by genetic factors. Aged skin exhibits morphological alterations, including wrinkling, dryness, and roughness, along with dysfunctional changes in the skin barrier. In this study, the in vivo anti-intrinsic aging efficacy of dietary astaxanthin extracted from Haematococcus pluvialis on the skin was evaluated using aged C57BL/6 J mice. As a result, dietary supplementation of 0.1% astaxanthin significantly alleviated the defects in skin's water retention capacity, viscoelasticity, and reduced wrinkle formation induced by intrinsic aging. Furthermore, gene expression analysis revealed that dietary astaxanthin was capable of mediating genes related to the proliferation and differentiation of skin cells, degradation of proteins in the extracellular matrix and dermal-epidermal junction, synthesis of natural moisturizing factors, and maintenance of skin barrier function. Together, our data indicate that dietary astaxanthin has potential applications as a novel ingredient in nutricosmetics against chronological skin aging.</p>","PeriodicalId":9175,"journal":{"name":"Bioscience, Biotechnology, and Biochemistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142892213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Naoki Yoshii, Keita Higuchi, Tomoko Onodera, Naoki Abe, Jun Kaneko
{"title":"Anaerobic plasmalogen production in recombinant Escherichia coli carrying plasmalogen synthase gene from Selenomonas ruminantium.","authors":"Naoki Yoshii, Keita Higuchi, Tomoko Onodera, Naoki Abe, Jun Kaneko","doi":"10.1093/bbb/zbae208","DOIUrl":"https://doi.org/10.1093/bbb/zbae208","url":null,"abstract":"<p><p>Escherichia coli expressing SrPlsAR from Selenomonas ruminantium produces plasmalogen, comprising almost 60% of the total phospholipid content under anaerobic conditions. Both plasmenylethanolamine and plasmenylglycerol were detected, and the major acyl aldehyde derived from sn-1 vinyl ether was C16:1. Plasmalogen synthesis is affected by mutations in ATP-binding sites and Cys expected to be involved in the formation of the [4Fe-4S] cluster.</p>","PeriodicalId":9175,"journal":{"name":"Bioscience, Biotechnology, and Biochemistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142892130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Absorption of acylated anthocyanins from purple yam extract in rats.","authors":"Chiemi Moriya, Takahiro Hosoya, Hiroyuki Sakakibara, Kayoko Shimoi, Shigenori Kumazawa","doi":"10.1093/bbb/zbae206","DOIUrl":"https://doi.org/10.1093/bbb/zbae206","url":null,"abstract":"<p><p>Purple yam (Dioscorea alata L.) is a tuber widely distributed in the tropics and subtropics. We previously isolated several acylated anthocyanins from purple yam. In this study, purple yam extract was orally administered to rats and the absorption of the constituent anthocyanins was investigated. Acylated anthocyanins were detected in the plasma, confirming that they were absorbed into the body as their intact forms. The time required to reach the maximum anthocyanin concentration was 15 min, indicating rapid absorption into the blood. In addition, more than half of the total amount of anthocyanins excreted into the urine was excreted within the first 6 h after administration. To the best of our knowledge, this is the first report of the detection of characteristic acylated anthocyanins from purple yam in rat plasma and urine after oral administration.</p>","PeriodicalId":9175,"journal":{"name":"Bioscience, Biotechnology, and Biochemistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142892086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fatty acids from cheese stimulate cholesterol efflux by ABC transporters.","authors":"Michinori Matsuo, Shiho Takaoka, Kai Nakayama, Akika Nagira, Hirofumi Goto, Akihiro Nakajima","doi":"10.1093/bbb/zbae207","DOIUrl":"https://doi.org/10.1093/bbb/zbae207","url":null,"abstract":"<p><p>It is essential to remove cholesterol from the body to suppress atherosclerosis progression. ABCA1 and ABCG1 transport cholesterol in peripheral cells including macrophages and function in the formation of high-density lipoprotein (HDL). ABCG5/ABCG8 functions in the efflux of cholesterol from the body. In this study, we investigated the effects of Camembert cheese extracts and ingredients on cholesterol transport via ABC transporters. Camembert cheese extracts were added to BHK cells expressing ABCA1, ABCG1, or ABCG5/ABCG8, and THP-1 cells expressing ABCA1 and ABCG1. Organic solvent extracts of Camembert cheese increased cholesterol efflux in THP-1 and BHK cells expressing ABCA1 or ABCG5/ABCG8. After fractionation of the extracts, palmitoleic acid was found to increase cholesterol efflux by ABCA1 and ABCG5/ABCG8, whereas 10-hydroxypalmitic acid increased it by ABCA1 and ABCG1. It is suggested that palmitoleic acid and 10-hydroxypalmitic acid in Camembert cheese may prevent the accumulation of excess cholesterol in cells by stimulating ABC transporters.</p>","PeriodicalId":9175,"journal":{"name":"Bioscience, Biotechnology, and Biochemistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142892210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Inhibition of shoot branching in Arabidopsis by the artificially produced canonical-strigolactone.","authors":"Yuki Mizutori, Kotaro Nishiyama, Yoshiya Seto","doi":"10.1093/bbb/zbae202","DOIUrl":"https://doi.org/10.1093/bbb/zbae202","url":null,"abstract":"<p><p>Strigolactones (SLs) are apocarotenoid plant hormones that regulate shoot branching. The natural SLs can be divided into two groups, canonical and non-canonical SLs according to those chemical structures. In a model plant, Arabidopsis thaliana, it has been thought to produce only non-canonical SLs. Moreover, in rice, it was suggested that canonical-SL such as 4-deoxyorobanchol (4DO) does not have a critical role in shoot branching inhibition. In this report, to understand the potential of canonical-SL in shoot branching inhibition pathway in Arabidopsis, SL biosynthetic genes involved in canonical-SL production in other plant species were individually expressed in Arabidopsis. Our data clearly demonstrate that 5-deoxystrigol, but not 4DO, can inhibit shoot branching in Arabidopsis. Moreover, the results confirmed the important role of CLA methyltransferase (CLAMT) in shoot branching inhibition pathway in Arabidopsis.</p>","PeriodicalId":9175,"journal":{"name":"Bioscience, Biotechnology, and Biochemistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142885141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Investigation and determination of CoQ10(H2) and CoQ10(H4) species from black yeast-like fungi and filamentous fungi.","authors":"Jomkwan Jumpathong, Ikuhisa Nishida, Yasuhiro Matsuo, Tomohiro Kaino, Makoto Kawamukai","doi":"10.1093/bbb/zbae149","DOIUrl":"10.1093/bbb/zbae149","url":null,"abstract":"<p><p>Coenzyme Q (CoQ) or ubiquinone functions as an electron transporter in the electron transport system in both prokaryotes and eukaryotes. The isoprenyl side chain of CoQ is modified in some organisms, especially in fungi, for optimal electron transport performance under various conditions. In this study, we investigated the side chain saturated dihydro CoQ (CoQ10(H2)) in Aureobasidium pullulans EXF-150, Sydowia polyspora NBRC 30562, and naturally isolated Plowrightia sp. A37, all of which are melanized Dothideomycetes species within Ascomycota, and also in filamentous fungi Aspergillus oryzae and A. terreus. Plowrightia sp. A37 produced the rarely synthesized tetrahydro type CoQ10(H4), especially in glucose-rich medium, during extended cultivation in contrast to CoQ10(H2) in time-limited cultivation. Using liquid chromatography-mass spectrometry, we identified demethoxyubiquinone-H2 (DMQ(H2)) as an indicative intermediate that suggests that the side chain saturation of CoQ occurs after the formation of DMQ and not always in the last step as previously considered.</p>","PeriodicalId":9175,"journal":{"name":"Bioscience, Biotechnology, and Biochemistry","volume":" ","pages":"110-123"},"PeriodicalIF":1.4,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142458215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jewel C De Padua, Takashi Kikuchi, Futa Sakakibara, Angeles M De Leon, Melfei E Bungihan, Kotomi Ueno, Thomas Edison E Dela Cruz, Atsushi Ishihara
{"title":"Novel compound, pleuropyronine, and other polyketides isolated from the edible mushroom Pleurotus ostreatus suppress bacterial biofilm formation.","authors":"Jewel C De Padua, Takashi Kikuchi, Futa Sakakibara, Angeles M De Leon, Melfei E Bungihan, Kotomi Ueno, Thomas Edison E Dela Cruz, Atsushi Ishihara","doi":"10.1093/bbb/zbae148","DOIUrl":"10.1093/bbb/zbae148","url":null,"abstract":"<p><p>An increase in the number of drug-resistant microbes is a major threat to human health. Bacterial drug resistance is mostly mediated by biofilm formation. In this study, the culture filtrate from the edible mushroom, Pleurotus ostreatus, was fractionated to isolate compounds that inhibit the biofilm formation of six pathogenic bacteria. Notably, we isolated compounds 1-6 using bioassay-guided chromatographic separations. Spectroscopic and X-ray diffraction analyses identified 1 as a novel fused bicyclic pyrone-furan, named pleuropyronine, whereas 2-6 were known polyketides. Pleuropyronine inhibited biofilm formation in four Gram-negative bacteria, with IC50 values ranging from 5.4 to 8.7 µg/mL, whereas 2-6 exhibited IC50 values between 1.0 and 5.3 µg/mL against five bacteria. Additionally, pleuropyronine bioactivity was confirmed by the inhibition of exopolysaccharide and biofilm formation induced by C6-homoserine lactone. Thus, this may serve as a pioneering study on the pharmacological potential of isolated compounds, offering valuable insights for future research.</p>","PeriodicalId":9175,"journal":{"name":"Bioscience, Biotechnology, and Biochemistry","volume":" ","pages":"11-21"},"PeriodicalIF":1.4,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142458216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}