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Bioactive Metabolites and Potential Mycotoxins Produced by Cordyceps Fungi: A Review of Safety. Toxins (Basel) 2020; 12:toxins12060410. [PMID: 32575649 PMCID: PMC7354514 DOI: 10.3390/toxins12060410] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 06/12/2020] [Accepted: 06/15/2020] [Indexed: 12/19/2022] Open
Abstract
Ascomycete Cordyceps fungi such as C. militaris, C. cicadae, and C. guangdongensis have been mass produced on artificial media either as food supplements or health additives while the byproducts of culture substrates are largely used as animal feed. The safety concerns associated with the daily consumption of Cordyceps fungi or related products are still being debated. On the one hand, the known compounds from these fungi such as adenosine analogs cordycepin and pentostatin have demonstrated different beneficial or pharmaceutical activities but also dose-dependent cytotoxicities, neurological toxicities and or toxicological effects in humans and animals. On the other hand, the possibility of mycotoxin production by Cordyceps fungi has not been completely ruled out. In contrast to a few metabolites identified, an array of biosynthetic gene clusters (BGCs) are encoded in each genome of these fungi with the potential to produce a plethora of as yet unknown secondary metabolites. Conservation analysis of BGCs suggests that mycotoxin analogs of PR-toxin and trichothecenes might be produced by Cordyceps fungi. Future elucidation of the compounds produced by these functionally unknown BGCs, and in-depth assessments of metabolite bioactivity and chemical safety, will not only facilitate the safe use of Cordyceps fungi as human food or alternative medicine, but will also benefit the use of mass production byproducts as animal feed. To corroborate the long record of use as a traditional medicine, future efforts will also benefit the exploration of Cordyceps fungi for pharmaceutical purposes.
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Zhang X, Hu Q, Weng Q. Secondary metabolites (SMs) of Isaria cicadae and Isaria tenuipes. RSC Adv 2018; 9:172-184. [PMID: 35521576 PMCID: PMC9059538 DOI: 10.1039/c8ra09039d] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 11/29/2018] [Indexed: 01/02/2023] Open
Abstract
Both Isaria cicadae and Isaria tenuipes are important entomopathogenic fungi used in health foods and traditional herbal medicines in East Asia. However, the safety concerns for both fungal species have been attracting significant attention. Thus, surveying their secondary metabolites (SMs) will be beneficial to improving the safety of their fungal products. In the case of I. cicadae, its SMs mainly include nucleosides, amino acids, beauvericins, myriocin, and oosporein. In contrast, trichothecene derivatives, isariotins, cyclopenta benzopyrans and PKs, are found in the case of I. tenuipes. Among them, beauvericins, myriocin, oosporein and many trichothecene derivatives are toxic compounds. The toxicity and side effects of the fungal products may be related to these SMs. Thus, to ensure the safety of fungal products, the residues standards of SMs need to be reported. Furthermore, methods for the detection of their SMs and biological identification of their strains must be considered. This review gives new insight into the secondary metabolites of medical and edible fungi.
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Affiliation(s)
- Xiaofeng Zhang
- College of Agriculture, South China Agricultural University Guangzhou 510642 China
| | - Qiongbo Hu
- College of Agriculture, South China Agricultural University Guangzhou 510642 China
| | - Qunfang Weng
- College of Agriculture, South China Agricultural University Guangzhou 510642 China
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Mascarin G, Dunlap C, Barrigossi J, Quintela E, de Noronha N. First record of epizootics in the ocola skipper,Panoquina ocola(Lepidopera: Hesperiidae), caused byIsaria tenuipesin flooded rice fields of Central Brazil. J Appl Microbiol 2017; 122:1020-1028. [DOI: 10.1111/jam.13390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 12/21/2016] [Accepted: 12/24/2016] [Indexed: 12/01/2022]
Affiliation(s)
- G.M. Mascarin
- EMBRAPA Rice and Beans; Santo Antônio de Goiás GO Brazil
| | - C.A. Dunlap
- United States Department of Agriculture; Agriculture Research Service; Crop Bioprotection Research Unit; National Center for Agricultural Utilization Research; Peoria IL USA
| | | | - E.D. Quintela
- EMBRAPA Rice and Beans; Santo Antônio de Goiás GO Brazil
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Kongkapan J, Giorgi M, Poapolathep S, Isariyodom S, Poapolathep A. Toxicokinetics and tissue distribution of nivalenol in broiler chickens. Toxicon 2015; 111:31-6. [PMID: 26739759 DOI: 10.1016/j.toxicon.2015.12.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 12/21/2015] [Accepted: 12/22/2015] [Indexed: 11/16/2022]
Abstract
Nivalenol (NIV), a type B trichothecene mycotoxin, is mainly produced by the fungi of Fusarium genus, which naturally occurs in agricultural commodities. Consumers are particularly concerned over the toxicity and safety of NIV in food animal products. To evaluate the toxicokinetics and persistence of residues of NIV, NIV was administered intravenously (iv) or orally (po) to broiler chickens at a dosage of 0.8 mg/kg body weight. The concentration of NIV in the plasma and various tissues was detected using liquid chromatography tandem-mass spectrometry. The plasma concentration of NIV in broilers could be measured up to 24 h and 12 h after iv and po administration, respectively. The value of elimination half-life of NIV was 5.27 ± 0.82 h and 2.51 ± 0.88 h after iv and po administration, respectively. The absolute oral bioavailability was 3.98 ± 0.08%. NIV was detected in the intestine, kidney, muscle, heart and liver after po administration. Regarding tissue residues, largest quantities of NIV were found in the small intestine. These results suggest that NIV is absorbed from the gastrointestinal tract with low bioavailability and it has the ability to diffuse into various tissues of broilers.
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Affiliation(s)
- Jutamart Kongkapan
- Interdisciplinary Graduate Program in Agricultural Biotechnology, Graduate School, Kasetsart University, KamphaengSaen Campus, Nakhon Pathom 73140, Thailand
| | - Mario Giorgi
- Department of Veterinary Sciences, University of Pisa, Via Livornese, (lato monte), San Piero a Grado, 56122 Pisa, Italy
| | - Saranya Poapolathep
- Department of Pharmacology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, Thailand
| | - Supaporn Isariyodom
- Department of Animal Science, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand
| | - Amnart Poapolathep
- Interdisciplinary Graduate Program in Agricultural Biotechnology, Graduate School, Kasetsart University, KamphaengSaen Campus, Nakhon Pathom 73140, Thailand; Department of Pharmacology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, Thailand.
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Lü YH, Pan WD, Xiao JH, Sun ZH, Zhong JJ. Cytotoxic mechanism of novel compound jiangxienone from Cordyceps jiangxiensis against cancer cells involving DNA damage response pathway. Process Biochem 2014. [DOI: 10.1016/j.procbio.2014.01.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bladt TT, Frisvad JC, Knudsen PB, Larsen TO. Anticancer and antifungal compounds from Aspergillus, Penicillium and other filamentous fungi. Molecules 2013; 18:11338-76. [PMID: 24064454 PMCID: PMC6269870 DOI: 10.3390/molecules180911338] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 08/23/2013] [Accepted: 09/03/2013] [Indexed: 12/11/2022] Open
Abstract
This review covers important anticancer and antifungal compounds reported from filamentous fungi and in particular from Aspergillus, Penicillium and Talaromyces. The taxonomy of these fungi is not trivial, so a focus of this review has been to report the correct identity of the producing organisms based on substantial previous in-house chemotaxonomic studies.
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Affiliation(s)
- Tanja Thorskov Bladt
- Department of Systems Biology, Technical University of Denmark, Søltofts Plads, Building 221, DK-2800 Kgs. Lyngby, Denmark.
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Juan-García A, Manyes L, Ruiz MJ, Font G. Applications of flow cytometry to toxicological mycotoxin effects in cultured mammalian cells: a review. Food Chem Toxicol 2013; 56:40-59. [PMID: 23422035 DOI: 10.1016/j.fct.2013.02.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 02/02/2013] [Accepted: 02/04/2013] [Indexed: 12/14/2022]
Abstract
This review gives an overview of flow cytometry applications to toxicological studies of several physiological target sites of mycotoxins on different mammalian cell lines. Mycotoxins are secondary metabolites of fungi that may be present in food, feed, air and water. The increasing presence of mycotoxins in crops, their wide distribution in the food chain, and their potential for toxicity demonstrate the need for further knowledge. Flow cytometry has become a valuable tool in mycotoxin studies in recent years for the rapid analysis of single cells in a mixture. In toxicology, the power of these methods lies in the possibility of determining a wide range of cell parameters, providing valuable information to elucidate cell growth and viability, metabolic activity, mitochondrial membrane potential and membrane integrity mechanisms. There are studies using flow cytometry technique on Alternaria, Aspergillus, Fusarium and Penicillium mycotoxins including information about cell type, assay conditions and functional parameters. Most of the studies collected in the literature are on deoxynivalenol and zearalenone mycotoxins. Cell cycle analysis and apoptosis are the processes more widely investigated.
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Affiliation(s)
- Ana Juan-García
- Laboratory of Toxicology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andres Estelles s/n, 46100 Burjassot, Valencia, Spain.
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Kim HJ, Jang SI, Kim YJ, Pae HO, Won HY, Hong KH, Oh H, Kwon TO, Chung HT. 4-Acetyl-12,13-Epoxyl-9-Trichothecene-3,15-Diol from Isaria japonica Mediates Apoptosis of Rat Bladder Carcinoma NBT-II Cells by Decreasing Anti-apoptotic Bcl-2 Expression and Increasing Pro-apoptotic Bax Expression. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2012; 32:377-87. [PMID: 15344421 DOI: 10.1142/s0192415x0400203x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We studied the effect of 4-acetyl-12,13-epoxyl-9-trichothecene-3,15-diol (AETD) isolated from Isaria japonica, one of the most popular Chinese fungal medicines, on the induction of apoptosis in rat bladder carcinoma NBT-II cells. AETD was cytotoxic to NBT-II cells, and this cytotoxic effect appears to be attributed to its induction of apoptotic cell death, as AETD induced nuclear morphological changes and internucleosomal DNA fragmentation, and increased the proportion of hypodiploid cells and activity of caspase-3. AETD treatment also decreased the expression of the anti-apoptotic protein Bcl-2 and increased the expression of the pro-apoptotic protein Bax. These results provide important information in understanding the mechanism(s) of AETD-induced apoptosis.
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Affiliation(s)
- Hyung-Jin Kim
- Immunopia Research Laboratory of Molecular and Cellular Immunology, Wonkwang University, Iksan, Chonbuk 570-749, South Korea
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Kim KN, Ham YM, Yang MS, Sam Kim D, Jae Lee W, Ho Lee N, Hyun CG. Molecular Mechanisms of Apoptosis Induced by Scytosiphon gracilis Kogame in HL-60 Cells. INT J PHARMACOL 2010. [DOI: 10.3923/ijp.2010.249.256] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kwack SJ, Lee BM. Subacute Oral Toxicity Study of a New Type of Cordyceps, Paecilomyces sinclairii, in Sprague-Dawley Rats. Toxicol Res 2009; 25:101-106. [PMID: 32038826 PMCID: PMC7006264 DOI: 10.5487/tr.2009.25.2.101] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2009] [Revised: 04/16/2009] [Accepted: 04/17/2009] [Indexed: 11/20/2022] Open
Abstract
This study was conducted to investigate the 2 week-oral toxicity of Paecilomyces sinclairii in Sprague-Dawley rats. P. sinclairii was daily administered to male and female rats for 2 weeks with different dose levels (0, 0.008, 0.04, 0.2, 1 and 5 g/kg). There were no clinical signs compared with control group, but a slight increase of white blood cell (WBC) was observed in the males rats receiving all dose levels of P. sinclairii. In biohematological analysis, the levels of glucose and cholesterol in the blood were decreased slightly in the males and females rats at doses of 0.008 or 1 g/kg. At the all dose groups, there were no significant changes in the body weights, but autopsy findings of all organs showed reduced weights in the thymus of males in the high dose groups of 1 g/kg and 5 g/kg. These results indicate that P. sinclairii does not induce any significant toxic effect on Sprague-Dawley rats treated for 2 weeks, but the reduced weights of thymus in males may require a further long-term investigation.
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Affiliation(s)
- Seung Jun Kwack
- 16Department of Toxicological Research, National Institute of Toxicological Research, Seoul, 122-704 Korea
| | - Byung Mu Lee
- 26Division of Toxicology, College of Pharmacy, Sungkyunkwan University, Chunchun-dong 300, Changan-ku, Suwon, Gyeonggi-do, 440-746 Korea
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Zheng Y, Zhao B, Lu C, Lin X, Zheng Z, Su W. Isolation, Structure Elucidation and Apoptosis-inducing Activity of New Compounds from the Edible Fungus Lentinus Striguellus. Nat Prod Commun 2009. [DOI: 10.1177/1934578x0900400411] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Three new natural compounds, striguellolide A (1), striguellol A (2) and striguellone A (6), together with three known ones, 3,4- trans-dihydroxy-6-methoxy-2,2-dimethylchroman (3), 3-hydroxy-6- methoxy-2,2-dimethylchroman-4-one (4) and 3-hydroxy-6- methoxy-2,2-dimethylchroman (5), were isolated from the agar cultures of the edible fungal strain Lentinus striguellus. Their structures were elucidated by spectroscopic and mass spectrometric analyses, including 1D-, 2D-NMR and HR-ESI-Q-TOF-MS, and chemical reactions. Striguellone A showed cytotoxicity against HeLa cells by MTT assay and was found to be an activator of apoptosis, assessed by morphological observation and cell cycle analysis using the flow cytometer.
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Affiliation(s)
- Yongbiao Zheng
- Institute of Soil and Fertilizer, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350013, P. R. China
- Key Laboratory of the Ministry of Education for Cell Biology and Tumor Cell Engineering, Xiamen Engineering Research Center of Marine Microbial Drug Discovery, Fujian Engineering Laboratory of Pharmaceuticals, School of Life Sciences, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Baobing Zhao
- Key Laboratory of the Ministry of Education for Cell Biology and Tumor Cell Engineering, Xiamen Engineering Research Center of Marine Microbial Drug Discovery, Fujian Engineering Laboratory of Pharmaceuticals, School of Life Sciences, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Chunhua Lu
- Key Laboratory of the Ministry of Education for Cell Biology and Tumor Cell Engineering, Xiamen Engineering Research Center of Marine Microbial Drug Discovery, Fujian Engineering Laboratory of Pharmaceuticals, School of Life Sciences, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Xinjian Lin
- Institute of Soil and Fertilizer, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350013, P. R. China
| | - Zhonghui Zheng
- Key Laboratory of the Ministry of Education for Cell Biology and Tumor Cell Engineering, Xiamen Engineering Research Center of Marine Microbial Drug Discovery, Fujian Engineering Laboratory of Pharmaceuticals, School of Life Sciences, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Wenjin Su
- Key Laboratory of the Ministry of Education for Cell Biology and Tumor Cell Engineering, Xiamen Engineering Research Center of Marine Microbial Drug Discovery, Fujian Engineering Laboratory of Pharmaceuticals, School of Life Sciences, Xiamen University, Xiamen, Fujian 361005, P. R. China
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Zhong JJ, Xiao JH. Secondary metabolites from higher fungi: discovery, bioactivity, and bioproduction. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2009; 113:79-150. [PMID: 19475376 DOI: 10.1007/10_2008_26] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Medicinal higher fungi such as Cordyceps sinensis and Ganoderma lucidum have been used as an alternative medicine remedy to promote health and longevity for people in China and other regions of the world since ancient times. Nowadays there is an increasing public interest in the secondary metabolites of those higher fungi for discovering new drugs or lead compounds. Current research in drug discovery from medicinal higher fungi involves a multifaceted approach combining mycological, biochemical, pharmacological, metabolic, biosynthetic and molecular techniques. In recent years, many new secondary metabolites from higher fungi have been isolated and are more likely to provide lead compounds for new drug discovery, which may include chemopreventive agents possessing the bioactivity of immunomodulatory, anticancer, etc. However, numerous challenges of secondary metabolites from higher fungi are encountered including bioseparation, identification, biosynthetic metabolism, and screening model issues, etc. Commercial production of secondary metabolites from medicinal mushrooms is still limited mainly due to less information about secondary metabolism and its regulation. Strategies for enhancing secondary metabolite production by medicinal mushroom fermentation include two-stage cultivation combining liquid fermentation and static culture, two-stage dissolved oxygen control, etc. Purification of bioactive secondary metabolites, such as ganoderic acids from G. lucidum, is also very important to pharmacological study and future pharmaceutical application. This review outlines typical examples of the discovery, bioactivity, and bioproduction of secondary metabolites of higher fungi origin.
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Affiliation(s)
- Jian-Jiang Zhong
- School of Life Sciences and Biotechnology, Key Laboratory of Microbial Metabolism Ministry of Education, Shanghai Jiao Tong University, 800 Dong-Chuan Road, Shanghai, 200240, China,
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Ahn MY, Jee SD, Lee BM. Antiobesity effects of Isaria sinclairii by repeated oral treatment in obese Zucker rats over a 4-month period. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2007; 70:1395-401. [PMID: 17654260 DOI: 10.1080/15287390701428556] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
In the present study, the antiobesity effects of Isaria sinclairii (I. sinclairii, a fungus cultured on silkworms) powder were investigated in obese (fa/fa) Zucker rats over 4 mo. Rats were given 5 or 10% (w/w) I. sinclairii powder (I. S.), 10% mulberry leaf powder, or 10% silkworm powder mixed with standard diet; a fifth (control) group was given standard diet alone. Dose-dependent decreases in rate of body weight gain were observed in the IS-treated groups after 2 wk of treatment. Interestingly, weights of abdominal adipose tissues surrounding the epididymides were markedly reduced by I. S., in parallel with an attenuated body weight gain. However, no significant differences were observed versus the control group in terms of urinalysis or ocular or histopathological examinations. In the serum, total cholesterol, triglyceride, bilirubin, and low-density lipoprotein (LDL) were significantly lower in the 10% I. S. group than control after 17 wk of treatment. The mulberry leaf diet (10%) significantly reduced serum bilirubin levels. Obese (fa/fa) Zucker rats displayed markedly elevated serum leptin levels (>24.6%) in the I. S. 5 and 10% groups compared with nontreated controls. Data suggest that I. sinclairii exerts an antiobesity effect in Zucker obese rats.
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Affiliation(s)
- Mi Young Ahn
- Department of Agricultural Biology, National Institute of Agricultural Science and Technology, Suwon, Republic of Korea.
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Ahn MY, Jung YS, Jee SD, Kim CS, Lee SH, Moon CH, Cho SI, Lee BM, Ryu KS. Anti-hypertensive effect of the dongchunghacho, isaria sinclairii, in the spontaneously hypertensive rats. Arch Pharm Res 2007; 30:493-501. [PMID: 17489367 DOI: 10.1007/bf02980225] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The present study examined the effect of the methanol extract of Isaria sinclairii, a kind of Donchunghacho (Tochukaso), on blood pressure in spontaneously hypertensive rats (SHR). Blood pressure and heart rate were measured after treatment with the methanol extract of I. sinclairii by the indirect tail-cuff method and the direct in vivo model. Starting at 12 weeks of age, male SHR were treated with the extracts for 2 or 4 weeks. We found that, when compared to untreated control SHR, oral treatment with I. sinclairii methanol extract (30 mg/kg/day) remarkably decreased systolic blood pressure from 200 to 112 mmHg and decreased diastolic blood pressure from 114 to 88 mmHg. Furthermore, efficacy of methanol extract of I. sinclairii was superior to captopril (30 mg/kg/mL, positive control), an angiotensin-converting enzyme inhibitor, with a lowering effect that dropped systolic blood pressure from 201 to 130 mmHg and diastolic blood pressure from 102 to 92 mmHg. However, in normal Wistar Kyoto rats, I. sinclairii methanol extract did not significantly change the normal blood pressure, suggesting that this type of Dongchunghacho has a selective effect against hypertension. Therefore, methanol extract of I. sinclairii may be used as an anti-hypertensive food/agent. Furthermore, this extract also has multiple actions such as No production in endothelial cells, inhibiting thrombin-induced blood coagulation by thrombin and mildly decreasing in prostaglandin E2 levels in cultured macrophage cells, all of which might contribute to protection against atherogenesis and thrombus formation. HPLC and MS analysis of methanol extract of I. sinclairii revealed the presence of adenosine.
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Affiliation(s)
- Mi Young Ahn
- Department of Agricultural Biology, National Institute of Agricultural Science and Technology, RDA, Suwon, Korea.
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Lee DH, Park T, Kim HW. Induction of Apoptosis by Disturbing Mitochondrial-Membrane Potential and Cleaving PARP in Jurkat T Cells through Treatment with Acetoxyscirpenol Mycotoxins. Biol Pharm Bull 2006; 29:648-54. [PMID: 16595895 DOI: 10.1248/bpb.29.648] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Paecilomyces tenuipes is a famous Chinese medicinal entomopathogenic fungus that grows within the larvae of silkworms. 4beta-acetoxyscirpendiol (4-MAS), a cytotoxic compound belonging to the scirpenol subfamily of trichothecene mycotoxin, was isolated from Paecilomyces tenuipes. To further elucidate the cytotoxic mechanism of 4-MAS, evidences of its induction of apoptosis, together with the structurally related acetoxyscirpenol moiety mycotoxins (ASMs) such as, 15-acetoxyscirpenol (15-MAS), 4,15-diacetoxyscirpenol (4,15-DAS), and 3alpha-acetyldiacetoxyscirpenol (TAS), in the human Jurkat T cell line were reported herein. In the MTT reduction and time-course cytotoxicity assays for monitoring cell viability, all the four ASMs that were tested exhibited cytotoxicity; single acetoxylation at C-4 of the scirpenol family resulted in relatively weak cytotoxicity, while acetoxylation at C-15 resulted in strong cytotoxicity regardless of the other acetoxylations at the C-3 and/or C-4 positions. Phosphatidylserine externalization was induced by all the ASMs that were treated at an early phase in a time-dependent manner, showing a typical apoptotic phenomenon, not a necrotic one. The ASMs also reduced the mitochondria's inner-membrane potential (deltaPsim) through flow cytometry analysis after staining these with DiOC6, a mitochondria-specific and voltage-dependent dye. Acetoxylation of ASM at C-15 increased deltaPsim disruption, but that at C-3 reduced the deltaPsim. The ASMs that were tested also cleaved 113 kDa PARP to an 89-kDa fragment through Western blot assay, suggesting the activation of caspase-3 and/or caspase-7 in the Jurkat T cell. DNA fragmentation was also observed to have been increased in a time-dependent manner by the ASMs that were tested in Jurkat T cells, resulting in the DNA fragmentation intensity order of 4,15-DAS>15-MAS>TAS>4-MAS. These data indicate that the Jurkat T cells that were treated with ASMs underwent typical cascades of apoptotic cell death.
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Affiliation(s)
- Dong Hee Lee
- Department of Life Sciences, University of Seoul, Korea
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Kouadio JH, Mobio TA, Baudrimont I, Moukha S, Dano SD, Creppy EE. Comparative study of cytotoxicity and oxidative stress induced by deoxynivalenol, zearalenone or fumonisin B1 in human intestinal cell line Caco-2. Toxicology 2005; 213:56-65. [PMID: 16019124 DOI: 10.1016/j.tox.2005.05.010] [Citation(s) in RCA: 211] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2005] [Revised: 02/21/2005] [Accepted: 05/12/2005] [Indexed: 11/24/2022]
Abstract
Fusarium species infestations of cereals crops occur worldwide. Fusarium toxins such as, deoxynivalenol (DON), zearalenone (ZEN) and fumonisin B1 (FB1) have been shown to cause diverse toxic effects in animals and also suspected of disease causation in humans. From the literature and mechanistic point of view, DON binds to the ribosomal peptidyl-transferase and inhibits protein synthesis specifically and DNA synthesis consequently. ZEN known to be genotoxic, binds to 17-beta-estradiol receptors, induces lipid peroxidation, cell death and inhibits protein and DNA synthesis. FB1 disrupts sphingolipid metabolism, induces lipid peroxidation altering the cell membrane and causing cell death. We intended to compare DON, ZEN and FB1 (1-150 microM) cytotoxic effect and the pathways leading to cell death and related to oxidative stress and macromolecules syntheses in a human intestinal cell line in order to tentatively classify them according to their respective potential toxicity. The comparison reveals that all three mycotoxins bear, at variable degree, the capability of inducing lipid peroxidation (MDA production) and could be classified above 10 microM in decreasing potency order FB1>DON>ZEN. This effect seems to be related to their common target that is the mitochondria as revealed by MTT test and seemingly not related to sphingoids accumulation concerning FB1. DON and ZEN also adversely affect lysosomes in contrast to FB1. The three mycotoxins inhibit protein synthesis with respective IC50 of 5, 8.8 and 19 microM for DON, FB1 and ZEN confirming that protein synthesis is a specific target of DON. DNA synthesis is inhibited by DON, ZEN and FB1 with respective IC50 of 1.7, 10 and 20 microM. However at higher concentrations DNA synthesis seems to be restored for FB1 and DON suggesting a promoter activity. Altogether the potency of the three mycotoxins in macromolecules inhibition is DON>ZEN>FB1 in Caco-2 cells. It appears then that FB1 acts rather through lipid peroxidation while DON affects rather DNA and protein synthesis.
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Affiliation(s)
- James H Kouadio
- Toxicology Department, University of Bordeaux 2, 146 rue Léo Saignat, 33076 Bordeaux, France
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Ahn MY, Ryu KS, Jee SD, Kim I, Kim JW, Kim YS, Kim HS, Kim IS, Kang SC, Koo HJ, Park YA, Choi SM, Yoo EJ, Kwack SJ, Yoo SD, Lee BM. Genotoxicity evaluation of Isaria sinclairii (ISE) extract. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2004; 67:2037-2044. [PMID: 15513901 DOI: 10.1080/15287390490514796] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The mutagenic potential Isaria sinclairii, a traditional Chinese medicine composed of the fruiting bodies of I. sinclairii and its parasitic host larva, was evaluated using short-term genotoxicity tests, namely, the Ames test, chromosome aberration (CA), and micronuclei (MN) tests. In a Salmonella typhimurium assay, I. sinclairii extract (ISE) did not produce any mutagenic response in the absence or presence of 59 mix with TA98, TA100, TA1535, and TA1537. In the chromosome aberration (CA) test, ISE induced no significant effect on Chinese hamster ovary (CHO) cells compared with control. In the MN test, no significant change in the occurrence of micronucleated polychromatic erythrocytes was observed in male ICR mice intraperitoneally administered ISE at doses of 15, 150, or 1500 mg/kg. These results indicate that ISE has no mutagenic potential in these in vitro and in vivo systems.
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Affiliation(s)
- Mi Young Ahn
- Department of Sericulture and Entomology, National Institute of Agricultural Science and Technology, RDA, Suwon, South Korea
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19
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Yun YG, Oh H, Oh GS, Pae HO, Choi BM, Kwon JW, Kwon TO, Jang SI, Chung HT. In Vitro Cytotoxicity of Mokko Lactone in Human Leukemia HL‐60 Cells: Induction of Apoptotic Cell Death by Mitochondrial Membrane Potential Collapse. Immunopharmacol Immunotoxicol 2004; 26:343-53. [PMID: 15518169 DOI: 10.1081/iph-200026863] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We studied the effect of mokko lactone (ML) isolated from the roots of Saussurea lappa (Compositae), a plant that is used for medicinal purposes in Korea, on the induction of apoptosis in human leukemia HL-60 cells. ML was cytotoxic to HL-60 cells, and this cytotoxic effect of ML appears to be attributable to its induction of apoptotic cell death, as ML induced nuclear morphologic changes and internucleosomal DNA fragmentation and increased the proportion of Annexin V-positive cells and the activity of caspase-3. Further studies revealed that the induction of apoptosis by ML was associated with the loss of mitochondrial membrane potential. Collectively, our results suggest that apoptosis induced by ML in HL-60 cells was executed by a collapse of mitochondrial membrane potential followed by the activation of caspase-3. This is the first report on the mechanism of apoptosis-inducing effect of ML.
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Affiliation(s)
- Y G Yun
- Department of Prescription, Wonkwang University School of Oriental Medicine, Iksan, Chonbuk, South Korea
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Minervini F, Fornelli F, Flynn KM. Toxicity and apoptosis induced by the mycotoxins nivalenol, deoxynivalenol and fumonisin B1 in a human erythroleukemia cell line. Toxicol In Vitro 2004; 18:21-8. [PMID: 14630058 DOI: 10.1016/s0887-2333(03)00130-9] [Citation(s) in RCA: 122] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The toxicity of the mycotoxins nivalenol (NIV), deoxynivalenol (DON) and fumonisin B1 (FB1) were studied in the K562 human erythroleukemia cell line using the Trypan Blue, MTT and BrdU uptake analyses of cytotoxicity, cell metabolism and cell proliferation, respectively. Nuclear staining with propidium iodide and DNA analysis by flow cytometry were used to identify apoptosis and cell cycle distribution. By the MTT and BrdU tests, both NIV and DON were significantly more toxic than FB1 by at least one order of magnitude, with ID50s ranging from 0.5 microM for NIV to 70 microM for FB1. The MTT test indicated that NIV was significantly (approximately four times) more toxic than DON. In contrast, the Trypan Blue test did not reveal any effects of mycotoxin exposure suggesting that, at the concentrations tested, NIV, DON and FB1 did not induce cytotoxicity through plasma membrane damage. Cell cycle analysis suggested apoptotic cytotoxicity, revealing 100% cellular debris at the highest concentrations of NIV and DON and approximately 2.9 times more debris than control at the highest FB1 concentration. Morphological evidence of apoptosis was related to the toxicity of the substances, such that the more toxic NIV and DON resulted in more late stage apoptotic events than FB1. This study suggests that human blood cells are sensitive to mycotoxin exposure, that NIV is more toxic than DON which is more toxic than FB1, and that DNA damage and apoptosis rather than plasma membrane damage and necrosis may be responsible for the observed cytotoxicity.
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Affiliation(s)
- F Minervini
- Istituto di Scienze delle Produzioni Alimentari, Consiglio Nazionale delle Ricerche, Viale Einaudi, 51, 70125 Bari,
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Fornelli F, Minervini F, Mulè G. CYTOTOXICITY INDUCED BY NIVALENOL, DEOXYNIVALENOL, AND FUMONISIN B1 IN THE SF-9 INSECT CELL LINE. ACTA ACUST UNITED AC 2004; 40:166-71. [PMID: 15479121 DOI: 10.1290/1543-706x(2004)40<166:cibnda>2.0.co;2] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The toxicity of the mycotoxins nivalenol (NIV), deoxynivalenol (DON), and fumonisin B1 (FB1) was studied in the lepidopteran Spodoptera frugiperda (SF-9) cells, by the trypan blue dye-exclusion and 3-(4,5-dimethylthiozole-2-yl)-2,5-biphenyl tetrazolium bromide (MTT) tests, uptake analyses of cytotoxicity, and cell metabolism, respectively. Deoxyribonucleic acid analysis by flow cytometry was used to identify apoptosis and cell cycle distribution. After 48 h of exposure, the MTT and trypan blue dye-exclusion tests indicated that NIV was significantly more toxic than DON, and both were significantly more toxic than FB1. The IC50 (mycotoxin concentration resulting in 50% inhibition of proliferation) values for NIV and DON were 4.5 and 41 microM, and the CC50 (mycotoxin concentration that caused 50% cytotoxicity) values were 9.5 and 45 microM, respectively. At the highest concentration of FB1 (100 microM), there was 80% viability. With the same incubation time, cell cycle distribution showed an arrest of cells in the G0/G1 phase in the presence of NIV (up to 0.3 microM), DON (up to 3 microM), and FB1 (up to 10 microM). Morphological evidence of apoptosis was related to the toxicity of the substances in that the more toxic NIV induced late apoptosis, whereas DON and FB1 produced less-severe morphological changes characteristic of early apoptosis. This study suggests that NIV is more toxic than DON, which in turn is more toxic than FB1. These mycotoxins can modify the normal progression of the cell cycle and induce an apoptotic process.
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Affiliation(s)
- Francesca Fornelli
- Institute of Sciences of Food Production (ISPA), National Research Council (CNR), Via Amendola 122, 70126 Bari, Italy
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Yokoyama E, Yamagishi K, Hara A. Structures of the mating-type loci of Cordyceps takaomontana. Appl Environ Microbiol 2003; 69:5019-22. [PMID: 12902305 PMCID: PMC169095 DOI: 10.1128/aem.69.8.5019-5022.2003] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2003] [Accepted: 05/16/2003] [Indexed: 11/20/2022] Open
Abstract
Nucleotide sequences of the mating-type loci MAT1-1 and MAT1-2 of Cordyceps takaomontana were determined, which is the first such report for the clavicipitaceous fungi. MAT1-1 contains two mating-type genes, MAT1-1-1 and MAT1-1-2, but MAT1-1-3 could not be found. On the other hand, MAT1-2 has MAT1-2-1. A pseudogene of MAT1-1-1 is located next to MAT1-2.
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Affiliation(s)
- Eiji Yokoyama
- The Agricultural High-Tech Research Center, Meijo University, Tempaku-ku, Nagoya 468-8502, Japan
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Pae HO, Oh GS, Choi BM, Seo EA, Oh H, Shin MK, Kim TH, Kwon TO, Chung HT. Induction of apoptosis by 4-acetyl-12,13-epoxyl-9-trichothecene-3,15-diol from Isaria japonica Yasuda through intracellular reactive oxygen species formation and caspase-3 activation in human leukemia HL-60 cells. Toxicol In Vitro 2003; 17:49-57. [PMID: 12537962 DOI: 10.1016/s0887-2333(02)00097-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Recently we have reported that the trichothecene mycotoxin 4-acetyl-12,13-epoxyl-9-trichothecene-3,15-diol (AETD) from the fruiting bodies of Isaria japonica Yasuda is a potent inducer of apoptosis in human promyelocytic HL-60 cells. The present study aims to characterize the molecular events leading to AETD-induced apoptosis in HL-60 cells. The percentage of apoptotic cells (annexin-V-positive cell population) increased dose- and time-dependently after AETD exposure. Apoptosis of HL-60 cells by AETD was associated with the formation of intracellular reactive oxygen species (ROS), the depletion of intracellular glutathione (GSH) and the activation of caspase-3. Pretreating the cells with the antioxidant N-acetyl-L-cystein (NAC) and the caspase-3 inhibitor Z-DEVD-fmk abrogated AETD-induced apoptosis and caspase-3 activation. NAC blocked intracellular ROS formation and GSH depletion, but Z-DEVD-fmk did not. These results indicate that AETD induces apoptosis in HL-60 cells by causing intracellular ROS formation and GSH depletion followed by the downstream event of caspase-3 activation.
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Affiliation(s)
- H O Pae
- Department of Microbiology and Immunology, Medicinal Resources Research Center of Wonkwang University, 344-2 Shinyong-Dong, Iksan-Shi, Chonbuk 570-749, South Korea
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Chung EJ, Choi K, Kim HW, Lee DH. Analysis of cell cycle gene expression responding to acetoxyscirpendiol isolated from Paecilomyces tenuipes. Biol Pharm Bull 2003; 26:32-6. [PMID: 12520168 DOI: 10.1248/bpb.26.32] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Paecilomyces tenuipes is believed to contain potential oncostatic and tumor-reducing components. Molecular mechanism, however, is poorly understood concerning the potential antitumor components and their biological function. We purified acetoxyscirpendiol (ASD) from methanolic extracts (MPT) of the fungus and tested the two compounds for the molecular profile of their antitumor potential. Using a differential display protocol, cyclin C and Mad-1 were identified as candidate genes responding to MPT. When a quantitative PCR was performed on the total RNA from MCF-7 treated by MPT or ASD, gene expressions of cyclin C and Mad-1 were greatly augmented. In terms of protein expression, cyclin C level increased up to 12 folds in response to ASD as well as MPT. Similar as MPT treatments, ASD-treated cells synthesize cyclin C as 2-4 fold compared to the control treatments. In terms of Mad-1 expression in cells treated with ASD, the level of Mad-1 expression increased up to 2.5 folds by MPT treatment. Cyclin C expression was compared with non-treated cells in various cell lines. MCF-7 cell was shown highly responsive to the MPT or ASD treatment. Taken together, these results strongly indicate that MPT contains potential antitumor components which might exert their action by modulating cell cycle-related genes such as cyclin C and Mad-1 in MCF-7. The major antioncogenic component in MPT may be ASD which modulates cyclin C and Mad-1 expression.
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Affiliation(s)
- Eui-Jung Chung
- Department of Life Science, University of Seoul, 90 Jeonnong-Dong, Dongdaemun-Gu, Seoul 130-743, Korea
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