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Jeong J, Kang BH, Ju S, Park NY, Kim D, Dinh NTB, Lee J, Rhee CY, Cho DH, Kim H, Chung DK, Bunch H. Lactiplantibacillus plantarum K8 lysates regulate hypoxia-induced gene expression. Sci Rep 2024; 14:6275. [PMID: 38491188 PMCID: PMC10943017 DOI: 10.1038/s41598-024-56958-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 03/13/2024] [Indexed: 03/18/2024] Open
Abstract
Hypoxic responses have been implicated in critical pathologies, including inflammation, immunity, and tumorigenesis. Recently, efforts to identify effective natural remedies and health supplements are increasing. Previous studies have reported that the cell lysates and the cell wall-bound lipoteichoic acids of Lactiplantibacillus plantarum K8 (K8) exert anti-inflammatory and immunomodulative effects. However, the effect of K8 on cellular hypoxic responses remains unknown. In this study, we found that K8 lysates had a potent suppressive effect on gene expression under hypoxia. K8 lysates markedly downregulated hypoxia-induced HIF1α accumulation in the human bone marrow and lung cancer cell lines, SH-SY5Y and H460. Consequently, the transcription of known HIF1α target genes, such as p21, GLUT1, and ALDOC, was notably suppressed in the K8 lysate supplement and purified lipoteichoic acids of K8, upon hypoxic induction. Intriguingly, K8 lysates decreased the expression of PHD2 and VHL proteins, which are responsible for HIF1α destabilization under normoxic conditions, suggesting that K8 may regulate HIF1α stability in a non-canonical pathway. Overall, our results suggest that K8 lysates desensitize the cells to hypoxic stresses and suppress HIF1α-mediated hypoxic gene activation.
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Affiliation(s)
- Jaehyeon Jeong
- Department of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Byeong-Hee Kang
- School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Sangmin Ju
- School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Na Yeon Park
- School of Life Sciences, BK21 FOUR KNU Creative BioRearch Group, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Deukyeong Kim
- School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Ngoc Thi Bao Dinh
- Department of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Jeongho Lee
- School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Chang Yun Rhee
- School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Dong-Hyung Cho
- School of Life Sciences, BK21 FOUR KNU Creative BioRearch Group, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Hangeun Kim
- Research and Development Center, Skin Biotechnology Center Co. Ltd., Yongin, 17104, Republic of Korea
| | - Dae Kyun Chung
- Graduate School of Biotechnology, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Heeyoun Bunch
- Department of Applied Biosciences, Kyungpook National University, Daegu, 41566, Republic of Korea.
- School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea.
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Zhao R, Wang HH, Gao J, Zhang YJ, Li X, Zhou JJ, Liang P, Gao XW, Gu SH. Plant volatile compound methyl benzoate is highly effective against Spodoptera frugiperda and safe to non-target organisms as an eco-friendly botanical-insecticide. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 245:114101. [PMID: 36155334 DOI: 10.1016/j.ecoenv.2022.114101] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 09/13/2022] [Accepted: 09/18/2022] [Indexed: 06/16/2023]
Abstract
Recent studies have indicated that the plant volatile methyl benzoate (MB) exhibits significant insecticidal bioactivity against several common insects. However, the potential environmental hazards of MB and its safety to non-target organisms is poorly understood. In the present study, these characteristics were investigated through laboratory experiments and field investigations. The results revealed that MB was highly toxic to the agricultural pest, fall armyworm Spodoptera frugiperda. Compared with the commercial pesticide lambda-cyhalothrin, the toxicities of MB against S. frugiperda larvae and adults were comparable and 3.41 times higher, respectively. Behavioral bioassays showed that the percentage repellency of MB to S. frugiperda larvae was 56.72 %, and MB induced 69.40 % oviposition deterrence rate in S. frugiperda female adults. Furthermore, in terms of median lethal concentration (LC50) and median lethal doses (LD50), MB exhibited non-toxic effects on non-target animals with 3-d LC50 of > 1 % to natural predators (Coccinella septempunctata and Harmonia axyridis), 3-d LD50 of 467.86 µg/bee to the bumblebee Bombus terrestris, 14-d LC50 of 971.09 mg/kg to the earthworm Eisenia fetida, and 4-d LC50 of 47.30 mg/L to the zebrafish Brachydanio rerio. The accumulation of MB in the soil and earthworms was found to be extremely limited. Our comparative study clearly demonstrated that MB is effective as a selective botanical pesticide against S. frugiperda and it is safe to use in the tested environment, with no toxic effects on non-target animals and natural predators.
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Affiliation(s)
- Rui Zhao
- Department of Entomology, China Agricultural University, Beijing 100193, China
| | - Huan-Huan Wang
- Department of Entomology, China Agricultural University, Beijing 100193, China
| | - Jie Gao
- Department of Entomology, China Agricultural University, Beijing 100193, China
| | - Yong-Jun Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xianchun Li
- Department of Entomology and BIO5 Institute, University of Arizona, Tucson, USA
| | - Jing-Jiang Zhou
- State Key Laboratory of Green Pesticide and Agricultural Bioengineering, Guizhou University, Guiyang, China
| | - Pei Liang
- Department of Entomology, China Agricultural University, Beijing 100193, China
| | - Xi-Wu Gao
- Department of Entomology, China Agricultural University, Beijing 100193, China
| | - Shao-Hua Gu
- Department of Entomology, China Agricultural University, Beijing 100193, China.
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Sobolewska E, Makowiecki P, Drozdowska J, Dziuba I, Nowicka A, Wyganowska-Świątkowska M, Janiszewska-Olszowska J, Grocholewicz K. Cytotoxic Potential of Denture Adhesives on Human Fibroblasts—In Vitro Study. MATERIALS 2022; 15:ma15041583. [PMID: 35208123 PMCID: PMC8878569 DOI: 10.3390/ma15041583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 01/27/2023]
Abstract
(1) In recent years, there has been a significant increase in the availability of denture adhesives for stabilizing removable dentures. The aim of the present study was to assess the cytotoxicity of three denture adhesives on human fibroblasts. (2) Methods: Three denture adhesives were analyzed. Fibroblast cultures were established for the study and control groups in order to assess the incidence of necrosis and to evaluate the microscopic intracellular alterations induced. Following incubation with (study groups) or without adhesives (control group), trypan blue dye exclusion assay was used to determine the number of viable and/or dead cells. Microscopic specimens were stained with haematoxylin and eosin, scanned, digitally processed and then analyzed by a histopathologist. (3) Results: All three denture adhesives analyzed demonstrated various toxic effects in vitro on human fibroblast: quantitative evaluation—45.87–61.13% reduction of cell viability (p = 0.0001) and slight to moderate cytotoxicity in qualitative evaluation. (4) Conclusions: Denture adhesive creams demonstrated a toxic effect on human fibroblasts in vitro in quantitative and qualitative evaluation. In vivo observations are needed to find out if denture adhesives present a cytotoxic effect in patients.
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Affiliation(s)
- Ewa Sobolewska
- Department of Dental Prosthetics, Pomeranian Medical University, 70-111 Szczecin, Poland;
| | - Piotr Makowiecki
- Department of Radiology, Pomeranian Medical University, 70-111 Szczecin, Poland;
| | - Justyna Drozdowska
- Department of Interdisciplinary Dentistry, Pomeranian Medical University, 70-111 Szczecin, Poland; (J.D.); (J.J.-O.)
| | - Ireneusz Dziuba
- Faculty of Medicine, University of Technology, 40-555 Katowice, Poland;
- Faculty of Medicine, Collegium Medicum, Cardinal Stefan Wyszyński University in Warsaw, 01-815 Warsaw, Poland
| | - Alicja Nowicka
- Department of Conservative Dentistry and Endodontics, Pomeranian Medical University, 70-111 Szczecin, Poland;
| | | | - Joanna Janiszewska-Olszowska
- Department of Interdisciplinary Dentistry, Pomeranian Medical University, 70-111 Szczecin, Poland; (J.D.); (J.J.-O.)
| | - Katarzyna Grocholewicz
- Department of Interdisciplinary Dentistry, Pomeranian Medical University, 70-111 Szczecin, Poland; (J.D.); (J.J.-O.)
- Correspondence: ; Tel.: +48-91-4661690
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Arsenic hexoxide has differential effects on cell proliferation and genome-wide gene expression in human primary mammary epithelial and MCF7 cells. Sci Rep 2021; 11:3761. [PMID: 33580144 PMCID: PMC7881197 DOI: 10.1038/s41598-021-82551-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 01/21/2021] [Indexed: 02/06/2023] Open
Abstract
Arsenic is reportedly a biphasic inorganic compound for its toxicity and anticancer effects in humans. Recent studies have shown that certain arsenic compounds including arsenic hexoxide (AS4O6; hereafter, AS6) induce programmed cell death and cell cycle arrest in human cancer cells and murine cancer models. However, the mechanisms by which AS6 suppresses cancer cells are incompletely understood. In this study, we report the mechanisms of AS6 through transcriptome analyses. In particular, the cytotoxicity and global gene expression regulation by AS6 were compared in human normal and cancer breast epithelial cells. Using RNA-sequencing and bioinformatics analyses, differentially expressed genes in significantly affected biological pathways in these cell types were validated by real-time quantitative polymerase chain reaction and immunoblotting assays. Our data show markedly differential effects of AS6 on cytotoxicity and gene expression in human mammary epithelial normal cells (HUMEC) and Michigan Cancer Foundation 7 (MCF7), a human mammary epithelial cancer cell line. AS6 selectively arrests cell growth and induces cell death in MCF7 cells without affecting the growth of HUMEC in a dose-dependent manner. AS6 alters the transcription of a large number of genes in MCF7 cells, but much fewer genes in HUMEC. Importantly, we found that the cell proliferation, cell cycle, and DNA repair pathways are significantly suppressed whereas cellular stress response and apoptotic pathways increase in AS6-treated MCF7 cells. Together, we provide the first evidence of differential effects of AS6 on normal and cancerous breast epithelial cells, suggesting that AS6 at moderate concentrations induces cell cycle arrest and apoptosis through modulating genome-wide gene expression, leading to compromised DNA repair and increased genome instability selectively in human breast cancer cells.
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Kim D, Jeong J, Ryu JA, Choi SR, Lee JM, Bunch H. In Vitro Evaluation of Lignin-Containing Nanocellulose. MATERIALS 2020; 13:ma13153365. [PMID: 32751221 PMCID: PMC7435712 DOI: 10.3390/ma13153365] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/27/2020] [Accepted: 07/27/2020] [Indexed: 11/16/2022]
Abstract
The increasing importance of environmental sustainability has led to the development of new materials that are environmentally friendly, functional, and cost-effective. Lignin-containing cellulose nanomaterials are a common example of these. The advantages of lignocelluloses include their renewability, sustainability, and functionality combined with molecular rigidity and enhanced hydrophobicity. In order to valorize these beneficial traits from lignin-containing nanocellulose, various approaches have been examined in industrial applications. However, the safety of these materials has not been tested or validated in humans. In this study, we tested 21 wt% lignin-containing nanocellulose (L-MFC) in vitro using the human lung and kidney cell lines, H460 and HEK293 cells, respectively. The cytotoxicity of cellulose, L-MFC, and lignin was compared using the water-soluble tetrazolium salt assays. In addition, the gene expressions of HSP70 and HSP90 as cellular stress markers treated with cellulose, L-MFC, and lignin were quantified using real-time polymerase chain reaction (PCR) and Western blotting. Our data indicated little cytotoxicity for cellulose and significant cytotoxicity for lignin and a relatively low level of cytotoxicity for L-MFC, providing the lethal median concentration (LC50) values of L-MFC and lignin. The gene expression of HSP70 and HSP90 was little affected by moderate concentrations of L-MFC. Interestingly, the lignin contained in L-MFC influenced the cell viability and the gene expression of HSP70 and HSP90 less than the same amount of lignin alone. These results indicate that L-MFC displays cell-type-dependent sensitivity and suggest that L-MFC could serve as a new eco-friendly material that is relatively safe for humans.
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Affiliation(s)
- Donguk Kim
- Applied Biosciences, Kyungpook National University, Daegu 41566, Korea; (D.K.); (J.J.)
| | - Jaehyeon Jeong
- Applied Biosciences, Kyungpook National University, Daegu 41566, Korea; (D.K.); (J.J.)
| | - Ji-Ae Ryu
- Department of Wood Science & Technology, Kyungpook National University, Daegu 41566, Korea; (J.-A.R.); (S.R.C.)
| | - Sa Rang Choi
- Department of Wood Science & Technology, Kyungpook National University, Daegu 41566, Korea; (J.-A.R.); (S.R.C.)
| | - Jung Myoung Lee
- Department of Wood Science & Technology, Kyungpook National University, Daegu 41566, Korea; (J.-A.R.); (S.R.C.)
- Correspondence: (J.M.L.); (H.B.)
| | - Heeyoun Bunch
- Applied Biosciences, Kyungpook National University, Daegu 41566, Korea; (D.K.); (J.J.)
- Correspondence: (J.M.L.); (H.B.)
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