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Ganoderma lucidum

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https://www.readbyqxmd.com/read/28435030/the-mitogen-activated-protein-kinase-glslt2-regulates-fungal-growth-fruiting-body-development-cell-wall-integrity-oxidative-stress-and-ganoderic-acid-biosynthesis-in-ganoderma-lucidum
#1
Guang Zhang, Zehua Sun, Ang Ren, Liang Shi, Dengke Shi, Xiongbiao Li, Mingwen Zhao
The mitogen-activated protein kinases (MAPKs) are crucial signaling instruments in eukaryotes that play key roles in regulating fungal growth, development, and secondary metabolism and in adapting to the environment. In this study, we characterized an Slt2-type MAPK in Ganoderma lucidum, GlSlt2, which was transcriptionally induced during the primordium and fruiting body stages. RNA interference was used to examine the function of GlSlt2. Knockdown of GlSlt2 caused defects in growth and increased hyphal branching as well as hypersensitivity to cell wall-disturbing substances...
April 18, 2017: Fungal Genetics and Biology: FG & B
https://www.readbyqxmd.com/read/28433170/structural-characterization-and-immuno-enhancing-activity-of-a-highly-branched-water-soluble-%C3%AE-glucan-from-the-spores-of-ganoderma-lucidum
#2
Yatao Wang, Yanfang Liu, Huazheng Yu, Shuai Zhou, Zhong Zhang, Di Wu, Mengqiu Yan, Qingjiu Tang, Jingsong Zhang
A water soluble β-glucan (GLSWA-I) with a weight average molecular weight ∼1.57×10(5)g/mol, isolated from the aqueous extract of the broken cellular wall Ganoderma lucidum spores, was purified by anion-exchange and gel-permeation chromatography. The immunological activity test in vivo showed that GLSWA-I could significantly promote dinitrochlorobenzene (DNCB) induced delayed-type ear swelling in mice. Based on the monosaccharides composition analysis, methylation analysis, IR, 1D and 2D NMR spectroscopy, the repeating unit of polysaccharide GLSWA-I was elucidated as follows...
July 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28427938/ganoderma-lucidum-reishi-suppresses-proliferation-and-migration-of-breast-cancer-cells-via-inhibiting-wnt-%C3%AE-catenin-signaling
#3
Yu Zhang
The medical mushroom Ganoderma lucidum (Reishi), a traditional Chinese medicine, has exhibited a promising anti-cancer effect. However, the molecular mechanism of its action on cancer cells remains unclear. Aberrant activation of Wnt/β-catenin signaling pathway is the cause of many types of cancer, including breast cancer. Here we investigated the effect of Reishi on Wnt/β-catenin signaling pathway and elucidated the molecular mechanism of its function in inhibiting breast cancer cells. We found that Reishi blocked Wnt/β-catenin signaling through inhibiting the phosphorylation of Wnt co-receptor LRP6...
April 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28422185/improved-ganoderic-acids-production-in-ganoderma-lucidum-by-wood-decaying-components
#4
Yanru Hu, Shakeel Ahmed, Jiawei Li, Biaobiao Luo, Zengyan Gao, Qiyun Zhang, Xiaohua Li, Xuebo Hu
Ganoderma lucidum is a legendary Traditional Chinese Medicine (TCM) over a few thousands of years and one kind of its major active components are Ganoderic acids (GAs). GAs are largely produced in the mushroom primordium and fruiting body but much less in mycelium stage. However, little is known on the underlying regulatory mechanism. As a saprophytic fungus, G. lucidum solely obtains nutrients by wood decaying. Wood in general contains sophisticated chemical components with diverse structural units. To explore a strategy that extensively leads to GAs induction in the submerged liquid fermentation, all chemical components that might be possibly from the wood decaying were tested individually as GAs inducers...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28421142/plackett-burman-design-for-rgilcc1-laccase-activity-enhancement-in-pichia-pastoris-concentrated-enzyme-kinetic-characterization
#5
Edwin D Morales-Álvarez, Claudia M Rivera-Hoyos, Ángela M Cardozo-Bernal, Raúl A Poutou-Piñales, Aura M Pedroza-Rodríguez, Dennis J Díaz-Rincón, Alexander Rodríguez-López, Carlos J Alméciga-Díaz, Claudia L Cuervo-Patiño
Laccases are multicopper oxidases that catalyze aromatic and nonaromatic compounds with concomitant reduction of molecular oxygen to water. They are of great interest due to their potential biotechnological applications. In this work we statistically improved culture media for recombinant GILCC1 (rGILCC1) laccase production at low scale from Ganoderma lucidum containing the construct pGAPZαA-GlucPost-Stop in Pichia pastoris. Temperature, pH stability, and kinetic parameter characterizations were determined by monitoring concentrate enzyme oxidation at different ABTS substrate concentrations...
2017: Enzyme Research
https://www.readbyqxmd.com/read/28416882/chemical-composition-antiproliferative-and-antioxidant-activity-of-differently-processed-ganoderma-lucidum-ethanol-extracts
#6
Sonja Veljović, Mile Veljović, Ninoslav Nikićević, Saša Despotović, Siniša Radulović, Miomir Nikšić, Lana Filipović
The content of phenolic compounds (TPC) and glucans, as well as the effectiveness of antiproliferative and antioxidant activity of differently processed Ganoderma lucidum ethanol extracts were determined and compared. The content of glucans (total, α- and β-) strongly depended on the extraction time and particle size, but only interaction of these parameters influenced the TPC. Gallic acid, quercetin, trans-cinnamic acid, kaempferol, hesperetin and naringenin were detected in extracts by HPLC-DAD. The most abundant phenols were hesperetin (1...
April 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28414246/ganoderin-a-a-novel-9-11-secosterol-from-ganoderma-lucidum-spores-oil
#7
Fa-Huan Ge, Ming-Hui Duan, Jing Li, Qing-Long Shi
In this study, four sterols were isolated from the Ganoderma lucidum spores oil obtained via supercritical CO2 extraction. Four chemical constituents were ganoderin A (1), chaxine B (2), ergosterol, (3) and stellasterol (4). All the separated ingredients were characterized using spectral data interpretation and by comparing with reported data. Noticeably, stellasterol and chaxine B were both firstly isolated from Ganoderma lucidum spores oil and ganoderin A was shown to bear an unprecedented skeleton.
April 17, 2017: Journal of Asian Natural Products Research
https://www.readbyqxmd.com/read/28393198/the-solid-state-fermentation-of-artemisia-capillaris-leaves-with-ganoderma-lucidum-enhances-the-anti-inflammatory-effects-in-a-model-of-atopic-dermatitis
#8
Hyeong-U Son, Seul Lee, Jin-Chul Heo, Sang-Han Lee
Artemisia capillaris, which belongs to the Asteraceae family and the genus Artemisia, has been reported to exert inhibitory effects on diabetes, cancer and inflammation. In this study, in order to enhance the bioactivity potential of the leaves of Artemisia by Ganoderma lucidum mycelium, we prepared aqueous samples of Artemisia capillaris (Ac) leaves, Ganoderma lucidum (Gl) and aqueous fractions produced by the solid fermentation of Ganoderma lucidum on Artemisia capillaris leaves (afAc/Gl). Thereafter, we evaluated whether these samples have potential to attenuate inflammation-related symptoms in an amimal model of 2,4-dinitrofluorobenzene (DNFB)-induced atopic dermatitis...
May 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28388474/a-comprehensive-quality-evaluation-method-by-ft-nir-spectroscopy-and-chemometric-fine-classification-and-untargeted-authentication-against-multiple-frauds-for-chinese-ganoderma-lucidum
#9
Haiyan Fu, Qiaobo Yin, Lu Xu, Weizheng Wang, Feng Chen, Tianming Yang
The origins and authenticity against frauds are two essential aspects of food quality. In this work, a comprehensive quality evaluation method by FT-NIR spectroscopy and chemometrics were suggested to address the geographical origins and authentication of Chinese Ganoderma lucidum (GL). Classification for 25 groups of GL samples (7 common species from 15 producing areas) was performed using near-infrared spectroscopy and interval-combination One-Versus-One least squares support vector machine (IC-OVO-LS-SVM)...
April 2, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28385047/breaking-the-sporoderm-of-ganoderma-lucidum-spores-by-combining-chemical-reaction-with-physical-actuation
#10
Jiajia Wang, Rui Ke, Shengyi Zhang
The hard and indissolvable sporoderm of Ganoderma lucidum spore (GLS) hinders the release of bioactive components that are significant to disease treatment and vitality enhancement. In this paper, a strategy to break sporoderm was proposed, in which the chemical reaction was cooperated with physical actuation (ultrasonication and refrigeration). Dealing with this chemicophysical treatment, the porous sporoderm of GLS was formed, which was confirmed by scanning electron microscope (SEM). The effect factors and mechanism of breaking sporoderm were discussed, and the efficiency of breaking sporoderm was evaluated by detecting the dissolution behaviour of inner triterpenoids in GLS...
April 7, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28383512/screening-and-analysis-of-the-marker-components-in-ganoderma-lucidum-by-hplc-and-hplc-ms-n-with-the-aid-of-chemometrics
#11
Lingfang Wu, Wenyi Liang, Wenjing Chen, Shi Li, Yaping Cui, Qi Qi, Lanzhen Zhang
Ganoderma triterpenes (GTs) are the major secondary metabolites of Ganoderma lucidum, which is a popularly used traditional Chinese medicine for complementary cancer therapy. The present study was to establish a fingerprint evaluation system based on Similarity Analysis (SA), Cluster Analysis (CA) and Principal Component Analysis (PCA) for the identification and quality control of G. lucidum. Fifteen samples from the Chinese provinces of Hainan, Neimeng, Shangdong, Jilin, Anhui, Henan, Yunnan, Guangxi and Fujian were analyzed by HPLC-PAD and HPLC-MS(n)...
April 6, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28359818/ganoderma-lucidum-polysaccharide-loaded-sodium-alginate-micro-particles-prepared-via-electrospraying-in-controlled-deposition-environments
#12
Zhi-Cheng Yao, Li-Jie Jin, Zeeshan Ahmad, Jie Huang, Ming-Wei Chang, Jing-Song Li
Ganoderma lucidum polysaccharide (GLP) is a functional food source deployed in preventative medicine. However, applications utilizing GLP are limited due to oxidative and acidic environmental damage. Advances in preserving GLP structure (and therefore function), in situ, will diversify their applications within biomedical fields (drug and antibacterial active delivery via the enteral route). In this study, GLP loaded sodium alginate (NaAlg) micro-particles (size range 225-355μm) were generated using the electrospray (ES) process...
March 28, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28358412/anticarcinogenic-effects-of-water-extract-of-sporoderm-broken-spores-of-ganoderma-lucidum-on-colorectal-cancer-in-vitro-and-in-vivo
#13
Kun Na, Kang Li, Tingting Sang, Kaikai Wu, Ying Wang, Xingya Wang
Ganoderma lucidum (G. lucidum) polysaccharides (GLPs) have been used as traditional Chinese medicine for cancer prevention for many years. However, the mechanism by which GLP exerts its chemopreventive activities remains elusive. In addition, it is unclear whether sporoderm-broken spores of G. lucidum water extract (BSGLWE), which contains mainly GLPs, has anticancer effects on colorectal cancer. The present study investigated the anticancer effects and potential mechanisms of BSGLWE on colorectal cancer in vivo and in vitro...
March 29, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28352534/the-morphology-of-ganoderma-lucidum-mycelium-in-a-repeated-batch-fermentation-for-exopolysaccharide-production
#14
Wan Abd Al Qadr Imad Wan-Mohtar, Safuan Ab Kadir, Nazamid Saari
The morphology of Ganoderma lucidum BCCM 31549 mycelium in a repeated-batch fermentation (RBF) was studied for exopolysaccharide (EPS) production. RBF was optimised for time to replace and volume to replace. G. lucidum mycelium showed the ability to self-immobilise and exhibited high stability for repeated use in RBF with engulfed pellets. Furthermore, the ovoid and starburst-like pellet morphology was disposed to EPS production in the shake flask and bioreactor, respectively. Seven RBF could be carried out in 500 mL flasks, and five repeated batches were performed in a 2 L bioreactor...
September 2016: Biotechnology Reports
https://www.readbyqxmd.com/read/28349780/ganoderic-acid-targeting-nuclear-factor-erythroid-2-related-factor-2-in-lung-cancer
#15
Balraj Singh Gill, Sanjeev Kumar, Navgeet
Lung cancer causes huge mortality worldwide, and targeting new pathway may provide an alternative in modulating signaling in cancer. Nuclear factor erythroid 2-related factor 2 is the major regulator of endogenous and exogenous stress by activating numerous antioxidant genes critical in cancer, Alzheimer's, Parkinson's, and inflammatory bowel diseases. Ganoderic acid is a triterpene from basiodiomycetes fungus Ganoderma lucidum with numerous therapeutic effects. In this study, ganoderic acid and its 50 isomers and natural activators were docked by receptor-based molecular docking using Maestro 9...
March 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28340576/polysaccharides-from-ganoderma-lucidum-attenuate-microglia-mediated-neuroinflammation-and-modulate-microglial-phagocytosis-and-behavioural-response
#16
Qing Cai, Yuanyuan Li, Gang Pei
BACKGROUND: Ganoderma lucidum (GL) has been widely used in Asian countries for hundreds of years to promote health and longevity. The pharmacological functions of which had been classified, including the activation of innate immune responses, suppression of tumour and modulation of cell proliferations. Effective fractions of Ganoderma lucidum polysaccharides (GLP) had already been reported to regulate the immune system. Nevertheless, the role of GLP in the microglia-mediated neuroinflammation has not been sufficiently elucidated...
March 24, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28336949/induction-of-apoptosis-and-ganoderic-acid-biosynthesis-by-camp-signaling-in-ganoderma-lucidum
#17
Bang-Jau You, Ni Tien, Miin-Huey Lee, Bo-Ying Bao, Yih-Shyuan Wu, Tsung-Chi Hu, Hong-Zin Lee
Apoptosis is an essential physiological process that controls many important biological functions. However, apoptosis signaling in relation to secondary metabolite biosynthesis in plants and fungi remains a mystery. The fungus Ganoderma lucidum is a popular herbal medicine worldwide, but the biosynthetic regulation of its active ingredients (ganoderic acids, GAs) is poorly understood. We investigated the role of 3',5'-cyclic adenosine monophosphate (cAMP) signaling in fungal apoptosis and GA biosynthesis in G...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28326038/ganoderic-acid-a-metabolites-and-their-metabolic-kinetics
#18
Fang-Rui Cao, Li Feng, Lin-Hu Ye, Li-Sha Wang, Bing-Xin Xiao, Xue Tao, Qi Chang
Ganoderic acid A (GAA), a representative active triterpenoid from Ganoderma lucidum, has been reported to exhibit antinociceptive, antioxidative, cytotoxic, hepatoprotective and anticancer activities. The present study aims (1) to identify GAA metabolites, in vivo by analyzing the bile, plasma and urine after intravenous administration to rats (20 mg/kg), and in vitro by incubating with rat liver microsomes (RLMs) and human liver microsomes (HLMs); (2) to investigate the metabolic kinetics of main GAA metabolites...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28322149/characterization-of-polysaccharides-from-the-fruiting-bodies-of-two-species-of-genus-ganoderma-agaricomycetes-and-determination-of-water-soluble-%C3%AE-d-glucan-using-high-performance-liquid-chromatography
#19
Yanfang Liu, Qingjiu Tang, Yan Yang, Shuai Zhou, Di Wu, Chuanhong Tang, Zhong Zhang, Mengqiu Yan, Jie Feng, Jing-Song Zhang
Molecular weight (Mw) distributions of polysaccharides from the fruiting bodies of different Ganoderma lucidum strains and G. sinense were investigated and compared using high-pressure size exclusion chromatography/multiangle laser light scattering/refractive index analysis. Results showed that there were big differences in the Mw distributions and characteristics of polysaccharides from 2 species of Ganoderma. All tested G. lucidum materials exhibited similar polysaccharide distributions and similar characteristics for each fraction...
2017: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/28322148/effects-of-exogenous-salicylic-acid-on-ganoderic-acid-biosynthesis-and-the-expression-of-key-genes-in-the-ganoderic-acid-biosynthesis-pathway-in-the-lingzhi-or-reishi-medicinal-mushroom-ganoderma-lucidum-agaricomycetes
#20
Peng-Fei Cao, Chen-Gao Wu, Zhi-Hao Dang, Liang Shi, Ai-Liang Jiang, Ang Ren, Ming-Wen Zhao
We demonstrate herein that salicylic acid (SA) can enhance ganoderic acid (GA) accumulation in the lingzhi or reishi medicinal mushroom Ganoderma lucidum. Following treatment with different concentrations of SA, the GA content was increased 22.72% to 43.04% compared with the control group. When the fungi were treated with 200 μmol/L SA at different times, the GA content was improved 10.21% to 35.24% compared with the control group. By choosing the optimum point based on response surface methodology, the GA content could be increased up to 229...
2017: International Journal of Medicinal Mushrooms
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