1
|
Tian G, He F, Li X, Hu S, Zhao X, Guo S, Wang T, Wang H, Zong W, Liu R. Novel mechanistic insights into Cr(VI) and Cr(III) induced discrepancies of cellular toxicity and oxidative injury events in Eisenia fetida. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 944:173970. [PMID: 38876350 DOI: 10.1016/j.scitotenv.2024.173970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 06/09/2024] [Accepted: 06/11/2024] [Indexed: 06/16/2024]
Abstract
Chromium (Cr) poses a high ecological risk, however the toxic mechanisms of Cr in different valence states to soil organisms at cellular and molecular levels are not exactly. In this study, the Eisenia fetida coelomocytes and Cu/Zn-superoxide dismutase (Cu/Zn-SOD) were chosen as the target subjects to investigate the effects and mechanisms of cellular toxicity induced by Cr(VI) and Cr(III). Results indicated that Cr(VI) and Cr(III) significantly reduced the coelomocytes viability. The level of reactive oxygen species (ROS) was markedly increased after Cr(VI) exposure, which finally reduced antioxidant defense abilities, and induced lipid peroxidation and cellular membrane damage in earthworm coelomocytes. However, Cr(III) induced lower levels of oxidative stress and cellular damage with respect to Cr(VI). From a molecular perspective, the binding of both Cr(VI) and Cr(III) with Cu/Zn-SOD resulted in protein backbone loosening and reduced β-Sheet content. The Cu/Zn-SOD showed fluorescence enhancement with Cr(III), whereas Cr(VI) had no obvious effect. The activity of Cu/Zn-SOD continued to decrease with the exposure of Cr. Molecular docking indicated that Cr(III) interacted more readily with the active center of Cu/Zn-SOD. Our results illustrate that oxidative stress induced by Cr(VI) and Cr(III) plays an important role in the cytotoxic differences of Eisenia fetida coelomocytes and the binding of Cr with Cu/Zn-SOD can also affect the normal structures and functions of antioxidant defense-associated protein.
Collapse
Affiliation(s)
- Guang Tian
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Falin He
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Xiangxiang Li
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Shaoyang Hu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Xingchen Zhao
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Shuqi Guo
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Tingting Wang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Hao Wang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Wansong Zong
- College of Geography and Environment, Shandong Normal University, 88# East Wenhua Road, Jinan, Shandong 250014, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China.
| |
Collapse
|
2
|
Wu F, Kong Z, Ge P, Sun D, Liu D, Dong Z, Chen G. Ecotoxicological evaluation and regeneration impairment of planarians by dibutyl phthalate. ENVIRONMENTAL RESEARCH 2024; 257:119403. [PMID: 38871274 DOI: 10.1016/j.envres.2024.119403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/31/2024] [Accepted: 06/09/2024] [Indexed: 06/15/2024]
Abstract
Commonly utilized as a plasticizer in the food and chemical sectors, Dibutyl phthalate (DBP) poses threats to the environment and human well-being as it seeps or moves into the surroundings. Nevertheless, research on the harmfulness of DBP to aquatic organisms is limited, and its impact on stem cells and tissue regeneration remains unidentified. Planarians, recognized for their robust regenerative capabilities and sensitivity to aquatic pollutants, are emerging animal models in toxicology. This study investigated the comprehensive toxicity effects of environmentally relevant levels of DBP on planarians. It revealed potential toxicity mechanisms through the use of immunofluorescence, chromatin dispersion assay, Western blot, quantitative real-time fluorescence quantitative PCR (qRT-PCR), chromatin behavioral and histological analyses, immunofluorescence, and terminal dUTP nickel-end labeling (TUNEL). Findings illustrated that DBP caused morphological and motor abnormalities, tissue damage, regenerative inhibition, and developmental neurotoxicity. Further research revealed increased apoptosis and suppressed stem cell proliferation and differentiation, disrupting a balance of cell proliferation and death, ultimately leading to morphological defects and functional abnormalities. This was attributed to oxidative stress and DNA damage caused by excessive release of reactive oxygen species (ROS). This exploration furnishes fresh perspectives on evaluating the toxicity peril posed by DBP in aquatic organisms.
Collapse
Affiliation(s)
- Fan Wu
- College of Life Science, Henan Normal University, Xinxiang, 453007, China
| | - Zhihong Kong
- College of Life Science, Henan Normal University, Xinxiang, 453007, China
| | - Peng Ge
- College of Life Science, Henan Normal University, Xinxiang, 453007, China
| | - Dandan Sun
- College of Life Science, Henan Normal University, Xinxiang, 453007, China
| | - Dezeng Liu
- College of Life Science, Henan Normal University, Xinxiang, 453007, China
| | - Zimei Dong
- College of Life Science, Henan Normal University, Xinxiang, 453007, China.
| | - Guangwen Chen
- College of Life Science, Henan Normal University, Xinxiang, 453007, China.
| |
Collapse
|
3
|
Wang Y, Jiang Y, Liu X, Chen Y, Zhang Q, Wang L, Li W. Analysis of Ginkgo biloba Root Exudates and Inhibition of Soil Fungi by Flavonoids and Terpene Lactones. PLANTS (BASEL, SWITZERLAND) 2024; 13:2122. [PMID: 39124240 PMCID: PMC11314191 DOI: 10.3390/plants13152122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 07/29/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024]
Abstract
Ginkgo biloba is abundant in secondary metabolites, including flavonoids and terpenoids. While the majority of research has focused on the role of these compounds in disease resistance, their specific contribution to pathogen defense has been rarely explored. In this study, we collected root exudates from hydroponically cultivated ginkgo seedlings and conducted a metabolomic analysis. We identified several primary metabolites mainly comprising amino acids and nucleotides, while secondary metabolites consisted of various compounds, including bioactive compounds such as flavonoids and terpenoids. Focusing on the secondary metabolites with relatively higher abundance in the exudates, we selected a mixture of flavonoids and terpenoids for in vitro inhibition experiments against two soil-borne fungal pathogens, Fusarium oxysporum f. sp. cucumerinum that causes cucumber wilt and Rhizoctonia solani AG-8 that causes wheat root rot. The results indicated that the growth rate of both fungus cells was significantly reduced with the increasing concentration of the flavonoid and terpenoid mixture extracted from ginkgo and was completely inhibited at a concentration of 5 mg/mL. Further experiments revealed that this mixture of flavonoids and terpenoids had a destructive effect on the cellular structure of both fungi, thereby reducing cell viability and achieving an antifungal effect. These findings provide a foundation for further research into the use of ginkgo extracts in biological control.
Collapse
Affiliation(s)
- Yawen Wang
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225000, China; (Y.W.); (Y.J.); (X.L.); (Y.C.); (L.W.)
| | - Yanbing Jiang
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225000, China; (Y.W.); (Y.J.); (X.L.); (Y.C.); (L.W.)
| | - Ximeng Liu
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225000, China; (Y.W.); (Y.J.); (X.L.); (Y.C.); (L.W.)
| | - Yadi Chen
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225000, China; (Y.W.); (Y.J.); (X.L.); (Y.C.); (L.W.)
| | - Qingxia Zhang
- College of Plant Protection, Yangzhou University, Yangzhou 225000, China;
| | - Li Wang
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225000, China; (Y.W.); (Y.J.); (X.L.); (Y.C.); (L.W.)
| | - Weixing Li
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225000, China; (Y.W.); (Y.J.); (X.L.); (Y.C.); (L.W.)
| |
Collapse
|
4
|
Chen Y, Jiang H, Sun Z, Liu F, Su M. Hydantoin derivative dimers as broad-spectrum antimicrobial agents against ESKAPE pathogens with enhanced killing rate and stability. RSC Med Chem 2024; 15:2340-2350. [PMID: 39026634 PMCID: PMC11253853 DOI: 10.1039/d4md00374h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Accepted: 05/29/2024] [Indexed: 07/20/2024] Open
Abstract
A new series of hydantoin derivative dimers as potential broad-spectrum antibiotic agents is designed and synthesized to combat ESKAPE pathogens. As membrane-active antimicrobial agents, in addition to cationic charged and hydrophobic groups that mimic AMPs (antimicrobial peptides), hydantoin backbones and aromatic linkers increased the rigidity and lipophilicity of the designed compounds, thus improving the stability and bactericidal killing rate. After whole cell phenotypic screening against eight bacterial strains, including MRSA (methicillin-resistant S. aureus), compound 18 was chosen as the lead compound with overall excellent broad-spectrum antibacterial activity (GM = 7.32 μg mL-1) and good selectivity. Kill-kinetic studies of compound 18 showed that the bacterial growth of both Gram-positive and Gram-negative was completely inhibited within one hour, which demonstrated excellent sterilization efficiency of 18. Furthermore, drug resistance and mechanism studies showed that compound 18 exhibited a steady antibacterial performance during 25 passages and could disrupt bacterial cell membrane integrity and cause cell death. Along with the facile synthesis procedures in solution, this series of hydantoin derivative dimer compounds could be an appealing next generation of antibiotic agents to combat emergent drug resistance.
Collapse
Affiliation(s)
- Yating Chen
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
- Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, College of Pharmaceutical Sciences, Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 People's Republic of China
| | - Huiqin Jiang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
- Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, College of Pharmaceutical Sciences, Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 People's Republic of China
| | - Zibin Sun
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
- Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, College of Pharmaceutical Sciences, Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 People's Republic of China
| | - Feng Liu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
- Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, College of Pharmaceutical Sciences, Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 People's Republic of China
| | - Ma Su
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
- Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, College of Pharmaceutical Sciences, Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 People's Republic of China
| |
Collapse
|
5
|
Zhou H, Wu Z, Zhang Y, Yu Z, Nie Z, Fan J, Zhu Z, Chen F, Wang T. In vitro anticancer study of novel curcumin derivatives via targeting PI3K/Akt/p53 signaling pathway. Mol Divers 2024:10.1007/s11030-024-10833-9. [PMID: 38951417 DOI: 10.1007/s11030-024-10833-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 02/28/2024] [Indexed: 07/03/2024]
Abstract
Four new series of curcumin derivatives bearing NO-donating moiety were synthesized via etherification, nucleophilic substitution, and Knoevenagel condensation etc. The cytotoxicity activity of curcumin derivatives against five human tumor cell lines (A549, Hela, HepG2, MCF-7 and HT-29) and two normal cell lines (LO-2 and HK-2) has been studied. The results showed that compound 6a could inhibit the proliferation of MCF-7 cells remarkably and exhibit low toxicity to normal cells. Also, the underlying mechanism in vitro of compound 6a on MCF-7 was investigated. It has been found that compound 6a induced G2/M arrest and apoptosis of MCF-7 in a dose-dependent manner. Compound 6a-induced the fluorescence changes of ROS in MCF-7 cells confirmed the occurrence of apoptosis. Western Blot suggested that compound 6a decreased the expression of PI3K, as well as increased the expression of p53, cleaved caspase-9 and cleaved caspase-3. Furthermore, molecular docking revealed that compound 6a could bind well at active site of PI3K (3zim) with total score 9.59. Together, compound 6a, a potential PI3K inhibitor, may inhibit the survival of MCF-7 cells via interfering with PI3K/Akt/p53 pathway.
Collapse
Affiliation(s)
- Huixian Zhou
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Zhiwen Wu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Yannan Zhang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Zikai Yu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Zhengyang Nie
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Jinbiao Fan
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Zuchang Zhu
- Technological R&D department, Lizhu Pharmaceutical Co., Ltd, Zhuhai, Guangdong, 519000, People's Republic of China
| | - Fenglian Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, People's Republic of China.
| | - Tao Wang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, People's Republic of China.
| |
Collapse
|
6
|
Wang X, Sun H, Cheng G, Ge J. Reduction of oxidative stress response and protection of liver and renal cell functions by reduced glutathione in lower limb arterial ischemia-reperfusion in New Zealand white rabbits with high triglyceride levels. Heliyon 2024; 10:e33258. [PMID: 39022000 PMCID: PMC11252971 DOI: 10.1016/j.heliyon.2024.e33258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/21/2024] [Accepted: 06/18/2024] [Indexed: 07/20/2024] Open
Abstract
Objective Acute liver and kidney injury is the most common complication after aortic surgery, which seriously affects the survival and safety of perioperative patients. The presence of chronic preoperative liver and renal insufficiency, presence of preoperative blood inflammation indicators, duration of intraoperative extracorporeal circulation, and volume of red blood cell transfusion are the main influencing factors for acute postoperative liver and kidney injuries. In recent years, with the research progress on oxidative stress, a growing body of evidence has demonstrated that oxidative stress may cause tissue damage after ischemia-reperfusion (IR). However, the impact of the oxidative stress of distal tissues caused by IR on liver and renal cells after arterial surgeries has not yet been elucidated. Methods New Zealand white rabbits were used for the experiments and were divided into three groups. Among them, two groups were fed high-fat feed to establish a white rabbit model of hypertriglyceridemia, whereas the control group was provided with ordinary feed. In the experiment, white rabbits were subjected to occlusion of the infrarenal aorta abdominalis to simulate IR of the lower limbs. The effects of high triglyceride levels after the arterial IR of the lower limbs were investigated using the contents of reactive oxygen species (ROS) and malondialdehyde (MDA), a fat metabolite, in ischemic muscle tissues and blood tissues. One of the groups receiving high-fat feed received intervention with reduced glutathione (GSH) before IR of the lower limbs. Pathological studies were performed to identify the expression levels of inflammatory factors and inflammatory cells in liver and renal cells as well as cell apoptosis. The effects of GSH administration before IR on reducing the oxidative stress in adipose tissues and alleviating liver and kidney damage after stress response were investigated. Results After IR, the increases in ROS and MDA in ischemic muscle tissues and blood tissues were higher in white rabbits with high triglyceride levels than in those that only received ordinary feed or received intervention with GSH. In addition, for white rabbits with high triglyceride levels, the TNF-α expression levels in the liver increased after IR. Moreover, a considerable increase in the expression of TNF-α, IL-6, macrophages, and T lymphocytes were observed in renal cells. A large number of inflammatory cells and the formation of immune complexes were also noted in the glomeruli; in addition, cell apoptosis was promoted. Conclusion This study showed that high triglyceride levels enhanced the oxidative stress response and increased ROS production in New Zealand white rabbits after arterial IR of the lower limbs. High ROS levels activated the expression of inflammatory factors and inflammatory cells in the liver and kidney, which affected cell functions and promoted apoptosis. At high triglyceride levels, GSH downregulated ROS production in oxidative stress after IR, thereby protecting liver and kidney functions.
Collapse
Affiliation(s)
- Xiaochen Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, Anhui, 230001, PR China
| | - Hailei Sun
- Department of Cardiovascular Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, Anhui, 230001, PR China
| | - Guangcun Cheng
- Department of Cardiovascular Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, Anhui, 230001, PR China
| | - Jianjun Ge
- Department of Cardiovascular Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, Anhui, 230001, PR China
| |
Collapse
|
7
|
Chu TW, Ho CC, Hsu YJ, Lo YH, Wu NL, Cheng YB, Hong MX, Chang DC, Hung CF. Protective Effects of Pear Extract on Skin from In Vitro and In Vivo UVA-Induced Damage. Pharmaceuticals (Basel) 2024; 17:583. [PMID: 38794153 PMCID: PMC11124007 DOI: 10.3390/ph17050583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 04/19/2024] [Accepted: 04/29/2024] [Indexed: 05/26/2024] Open
Abstract
The ancient Chinese medical book "Compendium of Materia Medica" records that pears can relieve symptoms of respiratory-related diseases. Previous research has shown that pear Pyrus Pyrifolia (Burm.f.) Nakai has antioxidant and anti-inflammatory properties. However, the anti-inflammatory, antioxidant, and anti-photoaging protective effects of Pyrus pyrifolia (Burm.f.) Nakai seed components have not been studied. Ultraviolet light (UV) causes skin inflammation, damages the skin barrier, and is an important cause of skin photoaging. Therefore, UV light with a wavelength of 365 nm was used to irradiate HaCaT and mice. Western blot, real-time quantitative polymerase chain reaction, and fluorescence imaging system were used to explore its anti-UVA mechanism. Dialysis membrane and nuclear magnetic resonance were used for the chemical constituent analysis of pear seed water extract (PSWE). We found that PSWE can significantly reduce UVA-induced skin cell death and mitogen-activated protein kinase phosphorylation and can inhibit the mRNA expression of UVA-induced cytokines (including IL-1β, IL-6, and TNF-α). In addition, PSWE can also reduce the generation of oxidative stress within skin cells. In vivo experimental studies found that PSWE pretreatment effectively reduced transepidermal water loss, inflammation, redness, and dryness in hairless mice. The molecular weight of the active part of pear water extract is approximately 384. Based on the above results, we first found that pear seeds can effectively inhibit oxidative stress and damage caused by UVA. It is a natural extract with antioxidant properties and anti-aging activity that protects skin cells and strengthens the skin barrier.
Collapse
Affiliation(s)
- Thomas W. Chu
- Department of Dermatology, Far Eastern Memorial Hospital, New Taipei City 22060, Taiwan;
- Department of Dermatology, Eastern Virginia Medical School, Norfolk, VA 23507, USA
| | - Ching-Chih Ho
- Department of Anesthesiology, Taoyuan Armed Forces General Hospital, Longtan, Taoyuan 325, Taiwan;
| | - Yu-Jou Hsu
- PhD Program in Pharmaceutical Biotechnology, Fu Jen Catholic University, New Taipei City 24205, Taiwan;
| | - Yuan-Hsin Lo
- Department of Dermatology, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei City 242, Taiwan;
| | - Nan-Lin Wu
- Department of Medicine, Mackay Medical College, New Taipei City 25245, Taiwan;
- Department of Dermatology, MacKay Memorial Hospital, Taipei 10491, Taiwan
| | - Yuan-Bin Cheng
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung 804351, Taiwan; (Y.-B.C.); (M.-X.H.)
| | - Mao-Xuan Hong
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung 804351, Taiwan; (Y.-B.C.); (M.-X.H.)
| | - Der-Chen Chang
- Department of Mathematics and Statistics and Department of Computer Science, Georgetown University, Washington, DC 20057, USA;
| | - Chi-Feng Hung
- PhD Program in Pharmaceutical Biotechnology, Fu Jen Catholic University, New Taipei City 24205, Taiwan;
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- School of Medicine, Fu Jen Catholic University, New Taipei City 24205, Taiwan
| |
Collapse
|
8
|
Deng R, Wu Z, He C, Lu C, He D, Li X, Duan Z, Zhao H. Exosomes from uterine fluid promote capacitation of human sperm. PeerJ 2024; 12:e16875. [PMID: 38680889 PMCID: PMC11056104 DOI: 10.7717/peerj.16875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 01/11/2024] [Indexed: 05/01/2024] Open
Abstract
Background Extracellular vesicles (EVs) are membrane-bound vesicles containing various proteins, lipids, and nucleic acids. EVs are found in many body fluids, such as blood and urine. The release of EVs can facilitate intercellular communication through fusion with the plasma membrane or endocytosis into the recipient cell or through internalization of the contents. Recent studies have reported that EVs isolated from human endometrial epithelial cells (EECs) promote sperm fertilization ability. EVs from uterine flushing fluid more closely resemble the physiological condition of the uterus. However, it is unclear whether EVs derived directly from uterine flushing fluid have the same effect on sperm. This study aimed to research the effect of EVs from uterine flushing fluid on sperm. Methods EVs were isolated from the uterine flushing fluid. The presence of EVs was confirmed by nanoparticle tracking analysis (NTA), Western blot, and transmission electron microscopy (TEM). EVs were incubated with human sperm for 2 h and 4 h. The effects of EVs on sperm were evaluated by analyzing acrosome reaction, sperm motility, and reactive oxygen species (ROS). Results The EVs fractions isolated from the uterine fluid were observed in cup-shaped vesicles of different sizes by TEM. All isolated vesicles contained similar numbers of vesicles in the expected size range (30-200 nm) by NTA. CD9 and CD63 were detected in EVs by western blot. Comparing the motility of the two groups incubated sperm motility significantly differed at 4 h. The acrosome reactions were promoted by incubating with EVs significantly. ROS were increased in sperm incubated with EVs. Conclusion Our results showed EVs present in the uterine fluid. Acrosome reactions and ROS levels increased in human sperm incubated with EVs. EVs from uterine fluid can promote the capacitation of human sperm. The increased capacitation after sperm interaction with EVs suggests a possible physiological effect during the transit of the uterus.
Collapse
Affiliation(s)
- Renbin Deng
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Zhao Wu
- Department of Genetics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Chaoyong He
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Chuncheng Lu
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Danpeng He
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Xi Li
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Zhenling Duan
- Department of Gynecology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Hui Zhao
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| |
Collapse
|
9
|
Sheridan KJ, Eaton-Rye JJ, Summerfield TC. Mutagenesis of Ile184 in the cd-loop of the photosystem II D1 protein modifies acceptor-side function via spontaneous mutation of D1-His252 in Synechocystis sp. PCC 6803. Biochem Biophys Res Commun 2024; 702:149595. [PMID: 38340653 DOI: 10.1016/j.bbrc.2024.149595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 01/27/2024] [Indexed: 02/12/2024]
Abstract
The Photosystem II water-plastoquinone oxidoreductase is a multi-subunit complex which catalyses the light-driven oxidation of water to molecular oxygen in oxygenic photosynthesis. The D1 reaction centre protein exists in multiple forms in cyanobacteria, including D1FR which is expressed under far-red light. We investigated the role of Phe184 that is found in the lumenal cd-loop of D1FR but is typically an isoleucine in other D1 isoforms. The I184F mutant in Synechocystis sp. PCC 6803 was similar to the control strain but accumulated a spontaneous mutation that introduced a Gln residue in place of His252 located on the opposite side of the thylakoid membrane. His252 participates in the protonation of the secondary plastoquinone electron acceptor QB. The I184F:H252Q double mutant exhibited reduced high-light-induced photodamage and an altered QB-binding site that impaired herbicide binding. Additionally, the H252Q mutant had a large increase in the variable fluorescence yield although the number of photochemically active PS II centres was unchanged. In the I184F:H252Q mutant the extent of the increased fluorescence yield decreased. Our data indicates substitution of Ile184 to Phe modulates PS II-specific variable fluorescence in cells with the His252 to Gln substitution by modifying the QB-binding site.
Collapse
Affiliation(s)
- Kevin J Sheridan
- Department of Botany, University of Otago, Dunedin, 9016, New Zealand; Department of Biochemistry, University of Otago, Dunedin, 9016, New Zealand
| | - Julian J Eaton-Rye
- Department of Biochemistry, University of Otago, Dunedin, 9016, New Zealand
| | | |
Collapse
|
10
|
Singh PR, Gupta A, Singh AP, Jaiswal J, Sinha RP. Effects of ultraviolet radiation on cellular functions of the cyanobacterium Synechocystis sp. PCC 6803 and its recovery under photosynthetically active radiation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2024; 252:112866. [PMID: 38364711 DOI: 10.1016/j.jphotobiol.2024.112866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/27/2024] [Accepted: 02/07/2024] [Indexed: 02/18/2024]
Abstract
Cyanobacteria are photosynthetic organisms and challenged by large number of stresses, especially by ultraviolet radiation (UVR). UVR primarily impacts lipids, proteins, DNA, photosynthetic performance, which lowers the fitness and production of cyanobacteria. UVR has a catastrophic effect on cyanobacterial cells and eventually leads to cell death. UVR tolerance in the Synechocystis was poorly studied. Therefore, we irradiated Synechocystis sp. PCC 6803 to varying hours of photosynthetically active radiations (PAR), PAR + UV-A (PA), and PAR + UV-A + UV-B (PAB) for 48 h. To study the tolerance of Synechocystis sp. PCC 6803 against different UVR. The study shows that Chl a and total carotenoids content increased up to 36 h in PAR and PA, after 36 h a decrease was observed. PC increased up to 4-fold in 48 h of PA irradiation compared to 12 h. Maximum increase in ROS was observed under 48 h PAB i.e., 5.8-fold. Flowcytometry (FCM) based analysis shows that 25% of cells do not give fluorescence of Chl a and H2DCFH. In case of cell viability 10% cells were found to be non-viable in 48 h of PAB irradiance compared to 12 h. From the above study it was found that FCM-based approaches would provide a better understanding of the variations that occurred within the Synechocystis cells compared to fluorescence microscopy-based methods.
Collapse
Affiliation(s)
- Prashant R Singh
- Laboratory of Photobiology and Molecular Microbiology, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Amit Gupta
- Laboratory of Photobiology and Molecular Microbiology, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Ashish P Singh
- Laboratory of Photobiology and Molecular Microbiology, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Jyoti Jaiswal
- Laboratory of Photobiology and Molecular Microbiology, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Rajeshwar P Sinha
- Laboratory of Photobiology and Molecular Microbiology, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| |
Collapse
|
11
|
Demiwal P, Nabi SU, Mir JI, Verma MK, Yadav SR, Roy P, Sircar D. Methyl jasmonate improves resistance in scab-susceptible Red Delicious apple by altering ROS homeostasis and enhancing phenylpropanoid biosynthesis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 207:108371. [PMID: 38271863 DOI: 10.1016/j.plaphy.2024.108371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/18/2023] [Accepted: 01/11/2024] [Indexed: 01/27/2024]
Abstract
Apple (Malus domestica) is an economically important rosaceous fruit crop grown at temperate climate zones. Nevertheless, its production is severely affected by scab disease caused by the ascomycetous fungus Venturia inaequalis (VI). Methyl jasmonate (MeJA) is a stress induced plant hormone, shown to induce resistance against wide range of pathogens. The current study investigated the role of MeJA in promoting scab tolerance in susceptible apple varieties through exogenous application of optimized (100 μM) MeJA concentration, followed by VI infection. According to our analysis, applying MeJA exogenously onto leaf surfaces resulted in increased membrane stability and decreased malondialdehyde levels in Red Delicious, suggesting that MeJA is capable of protecting tissues against oxidative damage through its role in restoring membrane stability. In addition, the changes in the levels of key antioxidative enzymes and reactive oxygen species (ROS) showed that exogenous MeJA maintains ROS homeostasis as well. Higher phenylalanine ammonia-lyase activity and increased accumulation of phenylpropanoids in MeJA-treated VI-infected plants indicated the MeJA reprogrammed phenylpropanoid biosynthesis pathway for scab tolerance. Our study of scab tolerance in apples induced by MeJA provides new insights into its physiological and biochemical mechanisms.
Collapse
Affiliation(s)
- Pratibha Demiwal
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
| | - Sajad Un Nabi
- Central Institute of Temperate Horticulture (ICAR-CITH), Srinagar, 190 005, J&K, India
| | - Javid Iqbal Mir
- Central Institute of Temperate Horticulture (ICAR-CITH), Srinagar, 190 005, J&K, India
| | - Mahendra K Verma
- Central Institute of Temperate Horticulture (ICAR-CITH), Srinagar, 190 005, J&K, India
| | - Shri Ram Yadav
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
| | - Partha Roy
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
| | - Debabrata Sircar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India.
| |
Collapse
|
12
|
Ma J, Chen X, Xue R, Wang F, Dong J, Tao N, Qin Z. Cinnamaldehyde inhibits cytokine storms induced by the ORF3a protein of SARS-CoV-2 via ROS-elimination in activated T cells. Phytother Res 2023; 37:6006-6020. [PMID: 37726983 DOI: 10.1002/ptr.8016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 08/04/2023] [Accepted: 09/03/2023] [Indexed: 09/21/2023]
Abstract
Cytokine storms are the cause of complications in patients with severe COVID-19, and it becomes the target of therapy. Several natural compounds were selected to screen the inhibitory effect on T-cell proliferation by Fluorescence-Activated Cell Sorting (FACS) and cytokine production by enzyme-linked immunosorbent assay (ELISA). Open reading frame 3a (ORF3a) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) stimulates the specific T-cell activation model in vivo and in vitro. The coculture system included the macrophage cell line RAW264.7 and splenocytes. Reactive oxygen species (ROS) levels and glycolysis in T cells were evaluated. Cinnamaldehyde effectively inhibits cytokine storms both in vitro and in vivo. It decreased inflammatory cytokine (such as IFN-γ, TNF-α, IL-6, and IL-2) production by murine peripheral blood cells upon direct stimulation with ConA, after immunization with the MHV-A59 virus or ORF3a peptide from SARS-CoV-2. Cinnamaldehyde restored the percentage of T cells, which was originally decreased in the peripheral blood and splenocytes of ORF3a-immunized mice. In a coculture system, cinnamaldehyde reduced the secretion of inflammatory cytokines from macrophages in a T-cell dependent manner. Furthermore, cinnamaldehyde decreased the ROS level in activated T cells, which in turn reduced glycolysis and the activation of T cells. Cinnamaldehyde can be used as a candidate molecule for COVID-19.
Collapse
Affiliation(s)
- Jing Ma
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xu Chen
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Rui Xue
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Fei Wang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jun Dong
- Cell Biology, Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), an Institute of the Leibniz Association, Berlin, Germany
| | - Ning Tao
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Zhihai Qin
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
13
|
Zoe LH, David SR, Rajabalaya R. Chitosan nanoparticle toxicity: A comprehensive literature review of in vivo and in vitro assessments for medical applications. Toxicol Rep 2023; 11:83-106. [PMID: 38187113 PMCID: PMC10767636 DOI: 10.1016/j.toxrep.2023.06.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 01/09/2024] Open
Abstract
Topic definition This literature review aims to update the current knowledge on toxicity of chitosan nanoparticles, compare the recent findings and identify the gaps with knowledge that is present for the chitosan nanoparticles. Methods The publications between 2010 and 2020 were searched in Science Direct, Pubmed.gov, Google Scholar, Research Gate, and ClinicalTrials.gov, according to the inclusion and exclusion criteria. 30 primary research studies were obtained from the literature review to compare the in vitro in vivo toxicity profiles among the chitosan nanoparticles. Major highlights Chitosan nanoparticles and other types of nanoparticles show cytotoxic effects on cancer cells while having minimal toxicity on normal cells. This apparent effect poses some considerations for use in incorporating cancer therapeutics into chitosan nanoparticles as an administration form. The concentration, duration of exposure, and pH of the solution can influence nanoparticle cytotoxicity, particularly in zebrafish. Different cell lines exhibit varying degrees of toxicity when exposed to nanoparticles, and of note are liver cells that show toxicity under exposure as indicated by increased alanine transaminase (ALT) levels. Aside from ALT, platelet aggregation can be considered a toxicity induced by chitosan nanoparticles. In addition, zebrafish cells experience the most toxicity, including organ damage, neurobehavioral impairment, and developmental abnormalities, when exposed to nanoparticles. However, nanoparticles may exhibit different toxicity profiles in different organisms, with brain toxicity and liver toxicity being present in zebrafish but not rats. Different organs exhibit varying degrees of toxicity, with the eye and mouth apparently having the lowest toxicity, while the brain, intestine, muscles and lung showing mixed results. Cardiotoxicity induced by chitosan nanoparticles was not observed in zebrafish embryos, and nanoparticles may reduce cardiotoxicity when delivering drug. Toxicity found in an organ may not necessarily mean that it is toxic towards all the cells found in that organ, as muscle toxicity was present when tested in zebrafish but not in C2C12 myoblast cells. Some of the studies conducted may have limitations that need to be reconsidered to account for differing results, with some examples being two experiments done on HeLa cells where one study concluded chitosan nanoparticles were toxic to the cells while the other seems to have no toxicity present. With regards to LD50, one study has stated the concentration of 64.21 mg/ml was found. Finally, smaller nanoparticles generally exhibit higher toxicity in cells compared to larger nanoparticles. Scope for future work This literature review did not uncover any published clinical trials with available results. Subsequent research endeavors should prioritize conducting clinical trials involving human volunteers to directly assess toxicity, rather than relying on cell or animal models.
Collapse
Affiliation(s)
- Liaw Hui Zoe
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, BE1410 Bandar Seri Begawan, Brunei Darussalam
| | - Sheba R. David
- School of Pharmacy, University of Wyoming, Laramie, WY 82071, USA
| | - Rajan Rajabalaya
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, BE1410 Bandar Seri Begawan, Brunei Darussalam
| |
Collapse
|
14
|
Safari S, Bahramikia S, Dezfoulian O. Silver nanoparticles synthesized from Quercus brantii ameliorated ethanol-induced gastric ulcers in rats by decreasing oxidative stress and improving antioxidant systems. Inflammopharmacology 2023; 31:2615-2630. [PMID: 37405588 DOI: 10.1007/s10787-023-01284-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 06/23/2023] [Indexed: 07/06/2023]
Abstract
Gastric ulcers are caused by an imbalance between aggressive and defensive factors. The green synthesis of silver nanoparticles is becoming a new and promising method in the treatment of gastrointestinal ulcers. This study was conducted to investigate the protective and antioxidant effects of silver nanoparticles synthesized from Quercus brantii extract (NSQBE) on gastric damage induced by alcohol in rats. In this study, silver nanoparticles were produced by the green synthesis method using oak extract. The structure and morphology of nanoparticles were confirmed by various techniques such as UV-Vis spectroscopy, fourier transforms infrared spectrometer (FTIR), scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), energy-dispersive X-ray analysis (EDX), and dynamic light scattering )DLS(. For the animal studies, 30 male Wistar rats weighing 200 ± 20 g were randomly selected and divided into five groups (the normal, ethanolic, NSQBE treatment (received doses of 20 and 5 mg/kg), and standard (received a dose of 50 mg/kg of ranitidine) groups. After the rats were euthanized, their stomach was removed. A part of the stomach tissue of rats was used for histopathological studies, and the other part was used to study biochemical parameters such as the level of reactive oxygen species (ROS), protein carbonyl oxidation (PCO), malondialdehyde (MDA), catalase (CAT), superoxide dismutase (SOD) and reduced glutathione (GSH) as well as nitric oxide (NO). Our results showed that in the ethanol group, the levels of ROS, MDA, PCO, and serum NO were higher than in the normal group. In addition, reduced GSH, CAT, SOD, tissue NO, gastric mucus, and antioxidant potential were decreased. In rats pretreated with NSQBE and ranitidine, the levels of ROS, MDA, PCO, and serum NO decreased, and the levels of GSH, CAT, SOD, tissue NO, gastric mucus, and antioxidant potential were increased in comparison to the ethanol group. The results of this study showed that silver nanoparticles synthesized using Quercus brantii are a promising approach for the treatment of gastric ulcers.
Collapse
Affiliation(s)
- Saba Safari
- Department of Biology, Lorestan University, Khorramabad, Iran
| | | | - Omid Dezfoulian
- Department of Pathobiology, Lorestan University, Khorramabad, Iran
| |
Collapse
|
15
|
Lu C, Wu Z, Gao H, Li H, Deng R, Luo N, Fan S, Li X, He D, Zhao H. Sperm induce macrophage extracellular trap formation via phagocytosis-dependent mechanism. Biol Reprod 2023; 109:319-329. [PMID: 37402702 DOI: 10.1093/biolre/ioad068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 05/08/2023] [Accepted: 06/20/2023] [Indexed: 07/06/2023] Open
Abstract
Infertility is a public health concern worldwide. Asthenozoospermia is a common cause of male infertility and is characterized by decreased motility. Sperm motility ensures that sperm migrate to complete fertilization. Macrophages are an essential component of innate immunity in the female reproductive tract. Macrophage extracellular traps are induced by various microorganisms to capture and mediate the clearance of microorganisms. The relationship between sperm and macrophage extracellular traps is unclear. The human monocyte leukemia (THP-1) cells differentiated by phorbol myristate acetate (PMA) are widely used as surrogate of human macrophages. This study investigated sperm-induced macrophage extracellular trap formation and clarified some of the mechanisms affecting macrophage extracellular trap production. Sperm-induced macrophage extracellular traps were visualized and components of macrophage extracellular traps were identified by immunofluorescence analyses and scanning electron microscopy. By inhibiting macrophage extracellular trap production and macrophage phagocytosis, the relationship between macrophage phagocytosis and macrophage extracellular trap production was analyzed. Sperm could trigger PMA-differentiated THP-1 macrophages to produce extracellular traps. Sperm-triggered macrophage extracellular traps are dependent on phagocytosis and nicotinamide adenine dinucleotide phosphate (NADPH) oxidase. Sperm from asthenozoospermia donors are more likely to be phagocytosed by macrophages than sperm from healthy donors, which induce more macrophage extracellular trap release. These data confirm the phenomenon and partial mechanism of sperm-induced macrophage extracellular trap formation in vitro. These may partly provide evidence to explain the mechanisms of clearing abnormally morphological or hypomotile sperm in the female reproductive tract and the rationale for the decreased probability of successful fertilization in asthenozoospermia.
Collapse
Affiliation(s)
- Chuncheng Lu
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- The First Affiliated Hospital of Kunming Medical University, Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming, China
| | - Zhao Wu
- Department of Reproductive Genetics, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Hongbin Gao
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- The First Affiliated Hospital of Kunming Medical University, Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming, China
| | - Haiyuan Li
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- The First Affiliated Hospital of Kunming Medical University, Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming, China
| | - Renbin Deng
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- The First Affiliated Hospital of Kunming Medical University, Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming, China
| | - Ning Luo
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- The First Affiliated Hospital of Kunming Medical University, Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming, China
| | - Shipeng Fan
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- The First Affiliated Hospital of Kunming Medical University, Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming, China
| | - Xi Li
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- The First Affiliated Hospital of Kunming Medical University, Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming, China
| | - Danpeng He
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- The First Affiliated Hospital of Kunming Medical University, Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming, China
| | - Hui Zhao
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- The First Affiliated Hospital of Kunming Medical University, Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming, China
| |
Collapse
|
16
|
Singh PR, Pathak J, Rajneesh, Ahmed H, Häder DP, Sinha RP. Physiological responses of the cyanobacterium Synechocystis sp. PCC 6803 under rhythmic light variations. Photochem Photobiol Sci 2023; 22:2055-2069. [PMID: 37227683 DOI: 10.1007/s43630-023-00429-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 04/26/2023] [Indexed: 05/26/2023]
Abstract
Cyanobacteria are challenged by daily fluctuations of light intensities and photoperiod in their natural habitats, which affect the physiology and fitness of cyanobacteria. Circadian rhythms (CRs), an important endogenous process found in all organisms including cyanobacteria, control their physiological activities and helps in coping with 24-h light/dark (LD) cycle. In cyanobacteria, physiological responses under rhythmic ultraviolet radiation (UVR) are poorly studied. Therefore, we studied the changes in photosynthetic pigments, and physiological parameters of Synechocystis sp. PCC 6803 under UVR and photosynthetically active radiation (PAR) of light/dark (LD) oscillations having the combinations of 0, 4:20, 8:16, 12:12, 16:8, 20:4, and 24:24 h. The LD 16:8 enhanced the growth, pigments, proteins, photosynthetic efficiency, and physiology of Synechocystis sp. PCC6803. Continuous light (LL 24) of UVR and PAR exerted negative impact on the photosynthetic pigments, and chlorophyll fluorescence. Significant increase in reactive oxygen species (ROS) resulted in loss of plasma membrane integrity followed by decreased viability of cells. The dark phase played a significant role in Synechocystis to withstand the LL 24 under PAR and UVR. This study offers detailed understanding of the physiological responses of the cyanobacterium to changing light environment.
Collapse
Affiliation(s)
- Prashant R Singh
- Laboratory of Photobiology and Molecular Microbiology, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Jainendra Pathak
- Laboratory of Photobiology and Molecular Microbiology, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
- Department of Botany, Pt. Jawaharlal Nehru College (Affiliated to Bundelkhand University, Jhansi), Banda, 210001, India
| | - Rajneesh
- Laboratory of Photobiology and Molecular Microbiology, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Haseen Ahmed
- Laboratory of Photobiology and Molecular Microbiology, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Donat-P Häder
- Department of Biology, Emeritus From Friedrich-Alexander University, Neue Str. 9, 91096, Möhrendorf, Germany
| | - Rajeshwar P Sinha
- Laboratory of Photobiology and Molecular Microbiology, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
- University Center for Research and Development (UCRD), Chandigarh University, Chandigarh, India.
| |
Collapse
|
17
|
Almutairi AW. Phenol phycoremediation by Haematococcus pluvialis coupled with enhanced astaxanthin and lipid production under rac-GR24 supplementation for enhanced biodiesel production. Saudi J Biol Sci 2023; 30:103681. [PMID: 37213694 PMCID: PMC10197103 DOI: 10.1016/j.sjbs.2023.103681] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/12/2023] [Accepted: 04/27/2023] [Indexed: 05/23/2023] Open
Abstract
The present study evaluated the impact of rac-GR24 on biomass and astaxanthin production under phenol stress coupled with biodiesel recovery from Haematococcus pluvialis. Phenol supplementation showed negative impact on growth, where the lowest biomass productivity of 0.027 g L-1 day-1 was recorded at 10 µM phenol, while 0.4 µM rac-GR24 supplementation showed the highest recorded biomass productivity of 0.063 g L-1 day-1. Coupling 0.4 µM rac-GR24 at different phenol concentrations confirmed the potential of rac-GR24 to mitigate the toxic effect of phenol by enhancing yield of PSII yield, RuBISCo activity, and antioxidant efficiency, which resulted in improved phenol phycoremediation efficiency. In addition, results suggested a synergistic action by rac-GR24 supplementation under phenol treatment where rac-GR24 enhanced lipid accumulation, while phenol enhanced astaxanthin production. Dual supplementation of rac-GR24 and phenol showed the highest recorded FAMEs content, which was 32.6% higher than the control, with improved biodiesel quality. The suggested approach could enhance the economic feasibility of triple-purpose application of microalgae in wastewater treatment, astaxanthin recovery, and biodiesel production.
Collapse
|
18
|
Hua Z, Zhang X, Zhao X, Zhu BW, Liu D, Tan M. Hepatic-targeted delivery of astaxanthin for enhanced scavenging free radical scavenge and preventing mitochondrial depolarization. Food Chem 2023; 406:135036. [PMID: 36459794 DOI: 10.1016/j.foodchem.2022.135036] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 10/24/2022] [Accepted: 11/20/2022] [Indexed: 11/24/2022]
Abstract
Astaxanthin (AST), as natural hydrophobic nutrition, has exhibited health-promoting benefits for its outstanding antioxidant property. However, most studies tend to enhance its stability and solubility while the targeted delivery of AST is limited. In this study, liver-targeted nanocarriers were designed and prepared by lactobionic acid-modified (2-hydroxypropyl-β-cyclodextrin) for efficient controlled delivery of AST. The minimum average size of AST nanoparticles was about 98 nm with a polydispersity index (PDI) of 0.41. The lactobionic acid-modified AST nanoparticles exhibited significant cellular uptake, and an admirable ability to scavenge free radicals for H2O2-induced HepaRG cells in preventing mitochondrial depolarization. Moreover, accumulation of AST nanoparticles in liver was observed due to the modification of lactobionic acid (LA) of the nanocarriers through the specific binding of LA-asialoglycoprotein receptors. The results in this study provided a new idea for liver-specific nutrition delivery of AST in developing functional food for liver disease nutrition intervention.
Collapse
Affiliation(s)
- Zheng Hua
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, Zhejiang, China; Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan 1, Ganjingzi District, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Xuedi Zhang
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan 1, Ganjingzi District, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Xue Zhao
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan 1, Ganjingzi District, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Bei-Wei Zhu
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan 1, Ganjingzi District, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Donghong Liu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, Zhejiang, China; Fuli Institute of Food Science, Zhejiang University, Hangzhou 310058, Zhejiang, China.
| | - Mingqian Tan
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan 1, Ganjingzi District, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning, China.
| |
Collapse
|
19
|
Zinc oxide nanoparticles: Biosynthesis, characterization, biological activity and photocatalytic degradation for tartrazine yellow dye. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2022.121090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
20
|
Yan H, Zhang Y, Zhang Y, Li Y, Kong X, Liu D, Li J, Xi Y, Ji J, Ye L, Zhai G. A ROS-responsive biomimetic nano-platform for enhanced chemo-photodynamic-immunotherapy efficacy. Biomater Sci 2022; 10:6583-6600. [PMID: 36227002 DOI: 10.1039/d2bm01291j] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Due to the complex bloodstream components, tumor microenvironment and tumor heterogeneity, traditional nanoparticles have a limited effect (low drug delivery efficiency and poor penetration to the deeper tumor) on eradicating tumors. To solve these challenges, novel platelet membrane-coated nanoparticles (PCDD NPs) were constructed for combined chemo-photodynamic- and immunotherapy of melanoma. The platelet membrane imparted the PCDD nanoparticles with an excellent long circulation effect and tumor targeting ability, which solved the issues of low drug delivery efficiency. After reaching the tumor cells, it releases the drug-loaded CDD micelles, becoming positively charged and facilitating the deep penetration of tumors. Cytotoxic and apoptosis experiments showed that PCDD nanoparticles have the strongest tumor cell killing ability. Based on the excellent results in vitro, PCDD was used to assess anti-tumor and distal tumor inhibition in rat models. The results revealed that the PCDD combined PDT, immunotherapy and chemotherapy could not only inhibit the primary tumor growth (inhibition rate: 92.0%) but also suppress the distant tumor growth (inhibition rate: 90.7%) and lung metastasis, which is far more effective compared to the commercial Taxotere®. Exploration of the molecular mechanism showed that in vivo immune response induced an increase in positive immune responders, suppressed negative immune suppressors, and established an inflammatory tumor immune environment, leading to excellent results in tumor suppression and lung metastasis. In conclusion, this novel multifunctional PCDD nanoparticle is a promising platform for tumor combined chemotherapy, photodynamic therapy (PDT) and immunotherapy.
Collapse
Affiliation(s)
- Huixian Yan
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, P. R. China.
| | - Yanan Zhang
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, P. R. China.
| | - Yu Zhang
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, P. R. China.
| | - Yingying Li
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, P. R. China.
| | - Xinru Kong
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, P. R. China.
| | - Dongzhu Liu
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, P. R. China.
| | - Jin Li
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, P. R. China.
| | - Yanwei Xi
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, P. R. China.
| | - Jianbo Ji
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, P. R. China.
| | - Lei Ye
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, P. R. China.
| | - Guangxi Zhai
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, P. R. China.
| |
Collapse
|
21
|
Li X, Ji Q, Yan C, Zhu Z, Yan Z, Chen P, Wang Y, Song L. H 2O 2/pH Dual-Responsive Biomimetic Nanoenzyme Drugs Delivery System for Enhanced Tumor Photodynamic Therapy. NANOSCALE RESEARCH LETTERS 2022; 17:103. [PMID: 36308645 PMCID: PMC9618007 DOI: 10.1186/s11671-022-03738-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
Phototherapy has been recognized as a photochemical process to treat tumor via induce cancer cells necrosis and death, with minimal invasiveness, higher selectivity, and few side effects. However, the therapy effects of phototherapy are often compromised by the hypoxia, high levels of hydrogen peroxide, and glutathione of tumor microenvironment (TME). Therefore, we constructed a catalase-like activity bionic metal-organic framework drugs delivery system (FA-EM@MnO2/ZIF-8/ICG) with tumor microenvironment controllable releasing. In this system, photosensitizer indocyanine green (ICG) was introduced into zeolite imidazole salt skeleton 8 (ZIF-8) by one-step methods, forming ZIF-8/ICG nano-platform, which can effectively avoid ICG-induced phototoxicity and aggregation-induced quenching during transport. MnO2 with catalase-like activity was coated on the surface of ZIF-8/ICG nano-platform, which made it have the ability of self-supplying O2 under the condition of H2O2 in TME. Exposure under near-infrared light can alleviate the anoxic TME, thus improving the phototherapy efficiency. In addition, folate-functionalized erythrocyte membrane is coated on the surface of MnO2/ZIF-8/ICG, which can endow FA-EM@MnO2/ZIF-8/ICG with the ability of targeted drug administration and immune elimination avoidance. Therefore, FA-EM@MnO2/ZIF-8/ICG nano-platform has the catalase-like activity, which can alleviate the oxidative stress state of TME and provide a beneficial environment for photodynamic therapy of tumor.
Collapse
Affiliation(s)
- Xinyuan Li
- The Affiliated Huai'an Hospital of Xuzhou Medical University and The Second People's Hospital of Huai'an, No.62, Huaihai Road (S.), Huai'an, 223002, China
| | - Qing Ji
- School of Medicine, Jiangsu University, Zhenjiang, 212013, China
| | - Chao Yan
- The Affiliated Huai'an Hospital of Xuzhou Medical University and The Second People's Hospital of Huai'an, No.62, Huaihai Road (S.), Huai'an, 223002, China
| | - Ziyu Zhu
- The Affiliated Huai'an Hospital of Xuzhou Medical University and The Second People's Hospital of Huai'an, No.62, Huaihai Road (S.), Huai'an, 223002, China
| | - Zhihui Yan
- The Affiliated Huai'an Hospital of Xuzhou Medical University and The Second People's Hospital of Huai'an, No.62, Huaihai Road (S.), Huai'an, 223002, China
| | - Ping Chen
- The Affiliated Huai'an Hospital of Xuzhou Medical University and The Second People's Hospital of Huai'an, No.62, Huaihai Road (S.), Huai'an, 223002, China
| | - Yisen Wang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China.
| | - Li Song
- YanCheng NO.1 People's Hospital, Yancheng, 224001, China.
| |
Collapse
|
22
|
Akif FA, Mahmoud M, Prasad B, Richter P, Azizullah A, Qasim M, Anees M, Krüger M, Gastiger S, Burkovski A, Strauch SM, Lebert M. Polyethylenimine Increases Antibacterial Efficiency of Chlorophyllin. Antibiotics (Basel) 2022; 11:antibiotics11101371. [PMID: 36290029 PMCID: PMC9598908 DOI: 10.3390/antibiotics11101371] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 11/16/2022] Open
Abstract
Polyethylenimines (PEIs), a group of polycationic molecules, are known to impair the outer membrane of Gram-negative bacteria and exhibit antimicrobial activity. The outer membrane of Gram-negative strains hinders the uptake of photosensitizer chlorophyllin. In this study, we report chlorophyllin and branched PEI combinations’ activity against Escherichia coli strains DH5α and RB791, Salmonella enterica sv. Typhimurium LT2, and Bacillus subtilis 168. The minimal bactericidal concentration (MBC) was determined by plating cells treated with different concentrations of PEI and chlorophyllin on agar and monitoring their growth after 24 h. All tested combinations of PEI and chlorophyllin were lethal for S. enterica after 240 min of incubation in light, whereas PEI alone (<100 µg mL−1) was ineffective. In the darkness, complete inhibition was noted with a combination of ≥2.5 µg mL−1 chlorophyllin and 50 µg mL−1 PEI. If applied alone, PEI alone of ≥800 µg mL−1 of PEI was required to completely inactivate E. coli DH5α cells in light, whereas with ≥5 µg mL−1 chlorophyllin, only ≥100 µg mL−1 PEI was needed. No effect was detected in darkness with PEI alone. However, 1600 µg mL−1 PEI in combination with 2.5 µg mL−1 resulted in complete inactivation after 4 h dark incubation. PEI alone did not inhibit E. coli strain RB791, while cells were inactivated when treated with 10 µg mL−1 chlorophyllin in combination with ≥100 µg mL−1 (in light) or ≥800 µg mL−1 PEI (in darkness). Under illumination, B. subtilis was inactivated at all tested concentrations. In the darkness, 1 µg mL−1 chlorophyllin and 12.5 µg mL−1 PEI were lethal for B. subtilis. Overall, PEI can be used as an antimicrobial agent or potentiating agent for ameliorating the antimicrobial activity of chlorophyllin.
Collapse
Affiliation(s)
- Faheem Ahmad Akif
- Department of Microbiology, Kohat University of Science and Technology (KUST), Kohat 26000, Pakistan
- Gravitational Biology Group, Department of Biology, Cell Biology Division, Friedrich-Alexander-Universität, Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Mona Mahmoud
- Gravitational Biology Group, Department of Biology, Cell Biology Division, Friedrich-Alexander-Universität, Erlangen-Nürnberg, 91058 Erlangen, Germany
- Dairy Department (Microbiology Lab.), National Research Centre, Cairo 12622, Egypt
- Department of Biology, Microbiology Division, Friedrich-Alexander-Universität, Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Binod Prasad
- Gravitational Biology Group, Department of Biology, Cell Biology Division, Friedrich-Alexander-Universität, Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Peter Richter
- Gravitational Biology Group, Department of Biology, Cell Biology Division, Friedrich-Alexander-Universität, Erlangen-Nürnberg, 91058 Erlangen, Germany
- Correspondence: (P.R.); (M.Q.)
| | - Azizullah Azizullah
- Department of Botany, Kohat University of Science and Technology (KUST), Kohat 26000, Pakistan
| | - Muhammad Qasim
- Department of Microbiology, Kohat University of Science and Technology (KUST), Kohat 26000, Pakistan
- Correspondence: (P.R.); (M.Q.)
| | - Muhammad Anees
- Department of Microbiology, Kohat University of Science and Technology (KUST), Kohat 26000, Pakistan
| | - Marcus Krüger
- Environmental Cell Biology Group, Department of Microgravity and Translational Regenerative Medicine, Otto-von-Guericke University, 39106 Magdeburg, Germany
| | - Susanne Gastiger
- Department of Biology, Microbiology Division, Friedrich-Alexander-Universität, Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Andreas Burkovski
- Department of Biology, Microbiology Division, Friedrich-Alexander-Universität, Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Sebastian M. Strauch
- Postgraduate Program in Health and Environment, University of Joinville Region, Joinville 89219-710, SC, Brazil
| | - Michael Lebert
- Gravitational Biology Group, Department of Biology, Cell Biology Division, Friedrich-Alexander-Universität, Erlangen-Nürnberg, 91058 Erlangen, Germany
- Space Biology Unlimited S.A.S., 33000 Bordeaux, France
| |
Collapse
|
23
|
Wang X, Zhang X, Sun K, Wang S, Gong D. Polystyrene microplastics induce apoptosis and necroptosis in swine testis cells via ROS/MAPK/HIF1α pathway. ENVIRONMENTAL TOXICOLOGY 2022; 37:2483-2492. [PMID: 35791677 DOI: 10.1002/tox.23611] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 06/23/2022] [Accepted: 06/25/2022] [Indexed: 06/15/2023]
Abstract
Microplastics (MPs) generally refer to the plastic fragments or particles smaller than 5 mm in diameter, which are closely concerned due to their widespread presence in the environment. Recent studies have shown that MPs have a serious threat on the reproductive health of organisms. Pigs are often selected as the model animals because of their high similarity to human tissues and organs. However, there are no reports on the effects and mechanisms of MPs exposure on swine germ cells. In the present study, we established swine testis (ST) cell models exposed to 250, 500, and 1000 μg/ml polystyrene microplastics (PS-MPs, 1-10 μm), respectively. The findings revealed that PS-MPs reduced cell viability dose-dependently. Acridine orange/ethidium bromide staining and flow cytometry results indicated the occurrence of apoptosis and necrosis in ST cells under PS-MPs exposure, and the expression changes of relevant marker genes (B-cell lymphoma-2, Bcl-2 Associated X, Caspase-3, Caspase-9, Receptor-interacting protein kinase 1, Receptor-interacting protein kinase 3, Mixed lineage kinase domain-like, and Caspase-8) were clarified via quantitative real-time PCR and western blot. Further mechanistic studies found that PS-MPs treatment induced excessive intracellular reactive oxygen species (ROS) production, which promoted the phosphorylation of mitogen-activated protein kinase (MAPK) pathway-related genes (P38, c-Jun N-terminal kinase, extracellular regulated protein kinases) and activated the downstream gene hypoxia-inducible factor (HIF1α). In conclusion, our study suggests that PS-MPs treatment causes apoptosis and necroptosis in ST cells via ROS/MAPK/HIF1α signaling pathway.
Collapse
Affiliation(s)
- Xu Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Xinyu Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Kexin Sun
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Shengchen Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Duqiang Gong
- College of Animal Science and Technology, Jilin Agricultural Science and Technology University, Jilin, China
| |
Collapse
|
24
|
Son HB, Bae WB, Jhee KH. Enhanced Antibacterial Activity of Sodium Hypochlorite under Acidic pH Condition. MICROBIOLOGY AND BIOTECHNOLOGY LETTERS 2022; 50:211-217. [DOI: 10.48022/mbl.2204.04014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/26/2022] [Accepted: 05/31/2022] [Indexed: 09/01/2023]
Affiliation(s)
- Hyeon-Bin Son
- Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea
| | - Won-Bin Bae
- Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea
| | - Kwang-Hwan Jhee
- Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea
| |
Collapse
|
25
|
Rao S, Lin Y, Lin R, Liu J, Wang H, Hu W, Chen B, Chen T. Traditional Chinese medicine active ingredients-based selenium nanoparticles regulate antioxidant selenoproteins for spinal cord injury treatment. J Nanobiotechnology 2022; 20:278. [PMID: 35701758 PMCID: PMC9195429 DOI: 10.1186/s12951-022-01490-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 06/01/2022] [Indexed: 12/11/2022] Open
Abstract
Background As Traditional Chinese Medicine (TCM) drugs, Huangqi and Danshen are always applied in combination for spinal cord injury (SCI) treatment based on the compatibility theory of TCM. Astragalus Polysaccharidesis (APS) and Tanshinone IIA (TSIIA) are the main active ingredients of Huangqi and Danshen, and they both possess neuroprotective effects through antioxidant activities. However, low solubility and poor bioavailability have greatly limited their application. In recent years, selenium nanoparticles (SeNPs) have drawn enormous attention as potential delivery carrier for antioxidant drugs. Results In this study, TCM active ingredients-based SeNPs surface decorated with APS and loaded with TSIIA (TSIIA@SeNPs-APS) were successfully synthesized under the guidance of the compatibility theory of TCM. Such design improved the bioavailability of APS and TSIIA with the benefits of high stability, efficient delivery and highly therapeutic efficacy for SCI treatment illustrated by an improvement of the antioxidant protective effects of APS and TSIIA. The in vivo experiments indicated that TSIIA@SeNPs-APS displayed high efficiency of cellular uptake and long retention time in PC12 cells. Furthermore, TSIIA@SeNPs-APS had a satisfactory protective effect against oxidative stress-induced cytotoxicity in PC12 cells by inhibiting excessive reactive oxygen species (ROS) production, so as to alleviate mitochondrial dysfunction to reduce cell apoptosis and S phase cell cycle arrest, and finally promote cell survival. The in vivo experiments indicated that TSIIA@SeNPs-APS can protect spinal cord neurons of SCI rats by enhancing GSH-Px activity and decreasing MDA content, which was possibly via the metabolism of TSIIA@SeNPs-APS to SeCys2 and regulating antioxidant selenoproteins to resist oxidative stress-induced damage. Conclusions TSIIA@SeNPs-APS exhibited promising therapeutic effects in the anti-oxidation therapy of SCI, which paved the way for developing the synergistic effect of TCM active ingredients by nanotechnology to improve the efficacy as well as establishing novel treatments for oxidative stress-related diseases associated with Se metabolism and selenoproteins regulation. Supplementary Information The online version contains supplementary material available at 10.1186/s12951-022-01490-x.
Collapse
Affiliation(s)
- Siyuan Rao
- Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.,Division of Spine Center, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Yongpeng Lin
- Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.,Division of Spine Center, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Rui Lin
- Division of Spine Center, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Jinggong Liu
- Division of Spine Center, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Hongshen Wang
- Division of Spine Center, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Weixiong Hu
- Division of Spine Center, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Bolai Chen
- Guangzhou University of Chinese Medicine, Guangzhou, 510006, China. .,Division of Spine Center, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China.
| | - Tianfeng Chen
- Department of Chemistry, Jinan University, Guangzhou, 510632, China.
| |
Collapse
|
26
|
Mondal S, Singh SP. Flow Cytometry-based Measurement of Reactive Oxygen Species in Cyanobacteria. Bio Protoc 2022; 12:e4417. [PMID: 35813020 PMCID: PMC9183968 DOI: 10.21769/bioprotoc.4417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 03/23/2022] [Accepted: 03/30/2022] [Indexed: 12/29/2022] Open
Abstract
Cyanobacteria are Gram-negative oxygen-producing photosynthetic bacteria that are useful in the pharmaceutical and biofuel industries. Monitoring of oxidative stress under fluctuating environmental conditions is important for determining the fitness, survival, and growth of cyanobacteria in the laboratory as well as in large scale cultivation systems. Here, we provide a protocol developed using unicellular Synechococcus elongatus PCC 7942 and filamentous Fremyella diplosiphon BK14 cyanobacteria for high-throughput oxidative stress measurement by 2',7'-dichlorodihydrofluorescein-diacetate (DCFH-DA) and flow cytometry (FCM). We also provide details for the optimization of cell number, dye concentration, and FCM parameters for each organism before it can be utilized to quantify reactive oxygen species (ROS). FCM-based method can be used to measure ROS in a large population of cyanobacterial cells in a high-throughput manner. Graphical abstract.
Collapse
Affiliation(s)
- Soumila Mondal
- Centre of Advanced Study in Botany, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi-221005, UP, India
| | - Shailendra P. Singh
- Centre of Advanced Study in Botany, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi-221005, UP, India,
*For correspondence:
| |
Collapse
|
27
|
Piletić K, Kovač B, Perčić M, Žigon J, Broznić D, Karleuša L, Lučić Blagojević S, Oder M, Gobin I. Disinfecting Action of Gaseous Ozone on OXA-48-Producing Klebsiella pneumoniae Biofilm In Vitro. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19106177. [PMID: 35627712 PMCID: PMC9140702 DOI: 10.3390/ijerph19106177] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/11/2022] [Accepted: 05/17/2022] [Indexed: 02/04/2023]
Abstract
Klebsiella pneumoniae is an emerging multidrug-resistant pathogen that can contaminate hospital surfaces in the form of a biofilm which is hard to remove with standard disinfectants. Because of biofilm resistance to conservative disinfectants, the application of new disinfection technologies is becoming more frequent. Ozone gas has antimicrobial activity but there is lack of data on its action against K. pneumoniae biofilm. The aim of this study was to investigate the effects and mechanisms of action of gaseous ozone on the OXA-48-procuding K. pneumoniae biofilm. A 24 h biofilm of K. pneumoniae formed on ceramic tiles was subsequently exposed to different concentrations of ozone during one and two hours to determine the optimal ozone concentration. Afterwards, the total bacteria count, total biomass and oxidative stress levels were monitored. A total of 25 ppm of gaseous ozone was determined to be optimal ozone concentration and caused reduction in total bacteria number in all strains of K. pneumoniae for 2.0 log10 CFU/cm2, followed by reduction in total biomass up to 88.15%. Reactive oxygen species levels significantly increased after the ozone treatment at 182% for the representative K. pneumoniae NCTC 13442 strain. Ozone gas in the concentration of 25 ppm caused significant biofilm reduction but did not completely eradicate the K. pneumoniae biofilm formed on ceramics. In conclusion, ozone gas has great potential to be used as an additional hygiene measure in joint combat against biofilm in hospital environments.
Collapse
Affiliation(s)
- Kaća Piletić
- Department of Microbiology and Parasitology, Faculty of Medicine, University of Rijeka, 51000 Rijeka, Croatia; (K.P.); (B.K.)
| | - Bruno Kovač
- Department of Microbiology and Parasitology, Faculty of Medicine, University of Rijeka, 51000 Rijeka, Croatia; (K.P.); (B.K.)
| | - Marko Perčić
- Faculty of Engineering & Centre for Micro- and Nanosciences and Technologies, University of Rijeka, 51000 Rijeka, Croatia;
| | - Jure Žigon
- Department of Wood Science and Technology, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia;
| | - Dalibor Broznić
- Department of Medical Chemistry, Biochemistry and Clinical Chemistry, Faculty of Medicine, University of Rijeka, 51000 Rijeka, Croatia;
| | - Ljerka Karleuša
- Department of Physiology and Immunology, Faculty of Medicine, University of Rijeka, 51000 Rijeka, Croatia;
| | - Sanja Lučić Blagojević
- Faculty of Chemical Engineering and Technology, University of Zagreb, 10000 Zagreb, Croatia;
| | - Martina Oder
- Department of Sanitary Engineering, Faculty of Health Sciences, University of Ljubljana, 1000 Ljubljana, Slovenia;
| | - Ivana Gobin
- Department of Microbiology and Parasitology, Faculty of Medicine, University of Rijeka, 51000 Rijeka, Croatia; (K.P.); (B.K.)
- Correspondence:
| |
Collapse
|
28
|
Gichuki S, Yalcin YS, Wyatt L, Ghann W, Uddin J, Kang H, Sitther V. Zero-Valent Iron Nanoparticles Induce Reactive Oxygen Species in the Cyanobacterium, Fremyella diplosiphon. ACS OMEGA 2021; 6:32730-32738. [PMID: 34901621 PMCID: PMC8655921 DOI: 10.1021/acsomega.1c04482] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/09/2021] [Indexed: 06/08/2023]
Abstract
Nanoscale zero-valent iron nanoparticles (nZVIs) are known to boost biomass production and lipid yield in Fremyella diplosiphon, a model biodiesel-producing cyanobacterium. However, the impact of nZVI-induced reactive oxygen species (ROS) in F. diplosiphon has not been evaluated. In the present study, ROS in F. diplosiphon strains (B481-WT and B481-SD) generated in response to nZVI-induced oxidative stress were quantified and the enzymatic response determined. Lipid peroxidation as a measure of oxidative stress revealed significantly higher malondialdehyde content (p < 0.01) in both strains treated with 3.2, 12.8, and 51.2 mg L-1 nZVIs compared to untreated control. In addition, ROS in all nZVI-treated cultures treated with 1.6-25.6 mg L-1 nZVIs was significantly higher than the untreated control as determined by the 2',7'-dichlorodihydrofluorescein diacetate fluorometric probe. Immunodetection using densitometric analysis of iron superoxide dismutase (SOD) revealed significantly higher SOD levels in both strains treated with nZVIs at 51.2 mg L-1. In addition, we observed significantly higher (p < 0.001) SOD levels in the B481-SD strain treated with 6.4 mg L-1 nZVIs compared to 3.2 mg L-1 nZVIs. Validation using transmission electron microscopy equipped with energy-dispersive X-ray spectroscopy (EDS) revealed adsorption of nZVIs with a strong iron peak in both B481-WT and B481-SD strains. While the EDS spectra showed strong signals for iron at 4 and 12 days after treatment, a significant decrease in peak intensity was observed at 20 days. Future efforts will be aimed at studying transduction mechanisms that cause metabolic and epigenetic alterations in response to nZVIs in F. diplosiphon.
Collapse
Affiliation(s)
- Samson
M. Gichuki
- Department
of Biology, Morgan State
University, 1700 East Cold Spring Lane, Baltimore 21251, United States
| | - Yavuz S. Yalcin
- Department
of Biology, Morgan State
University, 1700 East Cold Spring Lane, Baltimore 21251, United States
| | - LaDonna Wyatt
- Department
of Biology, Morgan State
University, 1700 East Cold Spring Lane, Baltimore 21251, United States
| | - William Ghann
- Center
for Nanotechnology, Departmaent of Natural Sciences, Coppin State University, 2500 W North Avenue, Baltimore, Maryland 21216, United
States
| | - Jamal Uddin
- Center
for Nanotechnology, Departmaent of Natural Sciences, Coppin State University, 2500 W North Avenue, Baltimore, Maryland 21216, United
States
| | - Hyeonggon Kang
- Center
for Nanotechnology, Departmaent of Natural Sciences, Coppin State University, 2500 W North Avenue, Baltimore, Maryland 21216, United
States
| | - Viji Sitther
- Department
of Biology, Morgan State
University, 1700 East Cold Spring Lane, Baltimore 21251, United States
| |
Collapse
|
29
|
Tajanpure A, Nade V, Kawale L. Liriodendrin, ameliorates hypertension by calcium channel blockade and enhancing enos expression in wistar rats. CARDIOMETRY 2021. [DOI: 10.18137/cardiometry.2021.20.4759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Introduction: Hypertension is found to be the prime cause ofdeath worldwide in spite of a number of available treatmentswhich suggests that there is a need of discovering new leadmolecules that would be more effective to treat cardiovasculardisease (CVD). Liriodendrin, the lignan phytoconstituent possessespotential pharmacological effects. Literature survey suggeststhat liriodendrin could be effective in mitigating hypertensionconsidering its structural similarity with reported cardiovascularprotective drugs. Hence liriodendrin is investigated to reveal itsmechanism of actions to support its antihypertensive property.Methods: Hypertension was induced in male wistar rats withDOCA salt. Hypertensive rats were treated with liriodendrin for4 weeks. Blood pressure, heart rate, body weight, lipid profile,serum nitrite levels, vascular reactivity to various catecholamines,in-vitro calcium channel blocking assays, antioxidantassay, determination of aortic calcium level, endothelial function,expression of eNOS analysis were studied.Result: Liriodendrin was found safe orally up to 2000 mg/kg. Itshowed a significant decrease in heart rate, blood pressure andmean arterial pressure. In-vitro study on the isolated rat aorta revealedthe calcium channel blocking potential of liriodendrin. Vascularreactivity to various catecholamines was normalized. Vascularendothelium was significantly protected by the enhancedrelease of nitric oxide and eNOS expression by the western blottechnique. Oxidative stress was also significantly reduced.Conclusion: Liriodendrin was found to be beneficial in hypertensionas it produced vasorelaxation by blocking calciumchannels, enhancing nitric oxide release, and reducing oxidativestress. Thus, liriodendrin may be useful to relieve hypertensionand cardiovascular complications.
Collapse
|
30
|
Liu Y, Bao Q, Chen Z, Yao L, Ci Z, Wei X, Wu Y, Zhu J, Sun K, Zhou G, Li S, Ma W, Tao K. Circumventing Drug Resistance Pathways with a Nanoparticle-Based Photodynamic Method. NANO LETTERS 2021; 21:9115-9123. [PMID: 34723551 DOI: 10.1021/acs.nanolett.1c02803] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Drug resistance remains the dominant impediment for cancer therapy, not only because compensatory drug resistance pathways are always activated, but also because of the cross-resistance of cancer cells to unrelated therapeutics. Herein, chemodrug-sensitive cancer cells, intrinsic drug-resistant cells, and acquired resistant cells were employed to uncover their biological response to a nanoparticle-based photodynamic method in tumoral, cellular, and molecular levels. We observed that nanoparticle-based photodynamic process with high therapeutic efficiency, intracellular delivery, and tumor penetration effect resulted in the indiscriminate and significant therapeutic outcome, in contrast to the diversiform effect of first-line chemo-drug, Temozolomide (TMZ). By real-time quantitative PCR array technique, we revealed that signals in classical resistance pathways were unaffected or downregulated, and photodynamic effect initiates cell apoptosis via downstream genes. The discovery that nanoparticulate photodynamic therapy bypasses the signals in multiple resistant pathways may imply an alternative route for combating drug resistance of cancer.
Collapse
Affiliation(s)
- Yan Liu
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
- Shanghai Key Lab of Tissue Engineering, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
| | - Qelger Bao
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Zheng Chen
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China
| | - Lin Yao
- Research Institute of Plastic Surgery, Wei Fang Medical College, Wei Fang, Shandong 261042, P.R. China
| | - Zheng Ci
- Research Institute of Plastic Surgery, Wei Fang Medical College, Wei Fang, Shandong 261042, P.R. China
| | - Xiangyu Wei
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China
| | - Yongjie Wu
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
| | - Jin Zhu
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China
| | - Kang Sun
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
| | - Guangdong Zhou
- Shanghai Key Lab of Tissue Engineering, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P.R. China
- Research Institute of Plastic Surgery, Wei Fang Medical College, Wei Fang, Shandong 261042, P.R. China
| | - Shiting Li
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China
| | - Wei Ma
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Ke Tao
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
| |
Collapse
|
31
|
Houliez E, Briand E, Malo F, Rovillon GA, Hervé F, Robert E, Marchand L, Zykwinska A, Caruana AMN. Physiological changes induced by sodium chloride stress in Aphanizomenon gracile, Cylindrospermopsis raciborskii and Dolichospermum sp. HARMFUL ALGAE 2021; 103:102028. [PMID: 33980428 DOI: 10.1016/j.hal.2021.102028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 03/14/2021] [Accepted: 03/24/2021] [Indexed: 06/12/2023]
Abstract
Due to anthropogenic activities, associated with climate change, many freshwater ecosystems are expected to experience an increase in salinity. This phenomenon is predicted to favor the development and expansion of freshwater cyanobacteria towards brackish waters due to their transfer along the estuarine freshwater-marine continuum. Since freshwater cyanobacteria are known to produce toxins, this represents a serious threat for animal and human health. Saxitoxins (STXs) are classified among the most powerful cyanotoxins. It becomes thus critical to evaluate the capacity of cyanobacteria producing STXs to face variations in salinity and to better understand the physiological consequences of sodium chloride (NaCl) exposure, in particular on their toxicity. Laboratory experiments were conducted on three filamentous cyanobacteria species isolated from brackish (Dolichospermum sp.) and fresh waters (Aphanizomenon gracile and Cylindrospermopsis raciborskii) to determine how salinity variations affect their growth, photosynthetic activity, pigment composition, production of reactive oxygen species (ROS), synthesis of compatible solutes and STXs intracellular quotas. Salinity tolerance was found to be species-specific. Dolichospermum sp. was more resistant to salinity variations than A. gracile and C. raciborskii. NaCl variations reduced growth in all species. In A. gracile, carotenoids content was dose-dependently reduced by NaCl. By contrast, in C. raciborskii and Dolichospermum sp., variations in carotenoids content did not show obvious relationships with NaCl concentration. While in Dolichospermum sp. phycocyanin and phycoerythrin increased within the first 24 h exposure to NaCl, in both A. gracile and C. raciborskii, these pigments decreased proportionally to NaCl concentration. Low changes in salinity did not impact STXs production in A. gracile and C. raciborskii while higher increase in salinity could modify the toxin profile and content of C. raciborskii (intracellular STX decreased while dc-GTX2 increased). In estuaries, A. gracile and C. raciborskii would not be able to survive beyond the oligohaline area (i.e. salinity > 5). Conversely, in part due to its ability to accumulate compatible solutes, Dolichospermum sp. has the potential to face consequent salinity variations and to survive in the polyhaline area (at least up to salinity = 24).
Collapse
Affiliation(s)
| | - Enora Briand
- IFREMER-Phycotoxins Laboratory, F-44311 Nantes, France
| | - Florent Malo
- IFREMER-Phycotoxins Laboratory, F-44311 Nantes, France
| | | | | | - Elise Robert
- IFREMER-Phycotoxins Laboratory, F-44311 Nantes, France
| | | | | | | |
Collapse
|
32
|
Xie Y, Chen L, Sun T, Jiang J, Tian L, Cui J, Zhang W. A transporter Slr1512 involved in bicarbonate and pH-dependent acclimation mechanism to high light stress in Synechocystis sp. PCC 6803. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2020; 1862:148336. [PMID: 33181099 DOI: 10.1016/j.bbabio.2020.148336] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 11/02/2020] [Accepted: 11/03/2020] [Indexed: 12/17/2022]
Abstract
High light (HL) exposure leads to photoinhibition and excess accumulation of toxic reactive oxygen species (ROS) in photosynthetic organisms, negatively impacting the global primary production. In this study, by screening a mutant library, a gene related with bicarbonate transport, slr1512, was found involved in HL acclimation in model cyanobacterium Synechocystis sp. PCC 6803. Comparative growth analysis showed that the slr1512 knockout mutant dramatically enhanced the tolerance of Synechocystis towards long-term HL stress (200 μmol photons m-2 s-1) than the wild type, achieving an enhanced growth by ~1.95-folds after 10 d. The phenotype differences between Δslr1512 and the wild type were analyzed via absorption spectrum and chlorophyll a content measurement. In addition, the accessible bicarbonate controlled by slr1512 and decreased PSII activity were demonstrated, and they were found to be the key factors affecting the tolerance of Synechocystis against HL stress. Further analysis confirmed that intracellular bicarbonate can significantly affect the activity of photosystem II, leading to the altered accumulation of toxic ROS under HL. Finally, a comparative transcriptomics was applied to determine the differential responses to HL between Δslr1512 and the wild type. This work provides useful insights to long-term acclimation mechanisms towards HL and valuable information to guide the future tolerance engineering of cyanobacteria against HL.
Collapse
Affiliation(s)
- Yaru Xie
- Laboratory of Synthetic Microbiology, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, PR China; Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Ministry of Education of China, Tianjin 300072, PR China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, PR China
| | - Lei Chen
- Laboratory of Synthetic Microbiology, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, PR China; Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Ministry of Education of China, Tianjin 300072, PR China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, PR China
| | - Tao Sun
- Laboratory of Synthetic Microbiology, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, PR China; Center for Biosafety Research and Strategy, Tianjin University, Tianjin 300072, PR China.
| | - Jingjing Jiang
- Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, PR China
| | - Lijin Tian
- Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, PR China
| | - Jinyu Cui
- Laboratory of Synthetic Microbiology, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, PR China; Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Ministry of Education of China, Tianjin 300072, PR China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, PR China
| | - Weiwen Zhang
- Laboratory of Synthetic Microbiology, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, PR China; Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Ministry of Education of China, Tianjin 300072, PR China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, PR China; Center for Biosafety Research and Strategy, Tianjin University, Tianjin 300072, PR China.
| |
Collapse
|
33
|
Zhou L, Gao S, Wu S, Han D, Wang H, Gu W, Hu Q, Wang J, Wang G. PGRL1 overexpression in Phaeodactylum tricornutum inhibits growth and reduces apparent PSII activity. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 103:1850-1857. [PMID: 32526813 DOI: 10.1111/tpj.14872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 05/22/2020] [Accepted: 06/01/2020] [Indexed: 05/11/2023]
Abstract
Proton gradient regulation 5-like photosynthetic phenotype 1 (PGRL1)-dependent cyclic electron transport around photosystem I (PSI) plays important roles in the response to different stresses, including high light. Although the function of PGRL1 in higher plants and green algae has been thoroughly investigated, little information is available on the molecular mechanism of PGRL1 in diatoms. We created PGRL1 overexpression and knockdown transformants of Phaeodactylum tricornutum, the diatom model species, and investigated the impact on growth and photosynthesis under constant and fluctuating light conditions. PGRL1 over-accumulation resulted in significant decreases in growth rate and apparent photosystem II (PSII) activity and led to an opposing change of apparent PSII activity when turning to high light, demonstrating a similar influence on photosynthesis as a PSII inhibitor. Our results suggested that PGRL1 overexpression can reduce the apparent efficiency of PSII and inhibit growth in P. tricornutum. These findings provide physiological evidence that the accumulation of PGRL1 mainly functions around PSII instead of PSI.
Collapse
Affiliation(s)
- Lu Zhou
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
- College of Earth Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shan Gao
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
| | - Songcui Wu
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
| | - Danxiang Han
- Center for Microalgal Biotechnology and Biofuels, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, 430072, China
| | - Hui Wang
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
| | - Wenhui Gu
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
| | - Qiang Hu
- Center for Microalgal Biotechnology and Biofuels, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
- Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, 430072, China
| | - Jing Wang
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, 266071, China
- College of Marine Life Sciences, Ocean University of China (OUC), Qingdao, 266003, China
| | - Guangce Wang
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
| |
Collapse
|
34
|
Bojadzija Savic G, Bormans M, Edwards C, Lawton L, Briand E, Wiegand C. Cross talk: Two way allelopathic interactions between toxic Microcystis and Daphnia. HARMFUL ALGAE 2020; 94:101803. [PMID: 32414501 DOI: 10.1016/j.hal.2020.101803] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 03/31/2020] [Accepted: 04/02/2020] [Indexed: 06/11/2023]
Abstract
Due to eutrophication, freshwater ecosystems frequently experience cyanobacterial blooms, many of which produce bioactive metabolites that can affect vertebrates and invertebrates life traits. Zooplankton are able to develop tolerance as a physiological response to cyanobacteria and their bioactive compounds, however, this comes with energetic cost that in turn influence Daphnia life traits and may impair populations. Vice versa, it has been suggested that Daphnia are able to reduce cyanobacterial dominance until a certain cyanobacterial density; it remains unclear whether Daphnia metabolites alone influence the physiological state and bioactive metabolites production of cyanobacteria. Hence, this study investigates mutual physiological reactions of toxic Microcystis aeruginosa PCC7806 and Daphnia magna. We hypothesize that a) the presence of D. magna will negatively affect growth, increase stress response and metabolites production in M. aeruginosa PCC7806 and b) the presence of M. aeruginosa PCC7806 will negatively affect physiological responses and life traits in D. magna. In order to test these hypotheses experiments were conducted in a specially designed co-culture chamber that allows exchange of the metabolites without direct contact. A clear mutual impact was evidenced. Cyanobacterial metabolites reduced survival of D. magna and decreased oxidative stress enzyme activity. Simultaneously, presence of D. magna did not affect photosynthetic activity. However, ROS increase and tendencies in cell density decrease were observed on the same day, suggesting possible energy allocation towards anti-oxidative stress enzymes, or other protection mechanisms against Daphnia infochemicals, as the strain managed to recover. Elevated concentration of intracellular and overall extracellular microcystin MC-LR, as well as intracellular concentrations of aerucyclamide A and D in the presence of Daphnia, indicating a potential protective or anti-grazing function. However, more research is needed to confirm these findings.
Collapse
Affiliation(s)
| | - Myriam Bormans
- Univ Rennes 1, CNRS, ECOBIO - UMR 6553, F-35000 Rennes, France
| | - Christine Edwards
- School of Pharmacy and Life Sciences, Robert Gordon University, Aberdeen AB10 7GJ, United Kingdom
| | - Linda Lawton
- School of Pharmacy and Life Sciences, Robert Gordon University, Aberdeen AB10 7GJ, United Kingdom
| | - Enora Briand
- Phycotoxins Laboratory, IFREMER, F-44311 Nantes, France
| | - Claudia Wiegand
- Univ Rennes 1, CNRS, ECOBIO - UMR 6553, F-35000 Rennes, France
| |
Collapse
|
35
|
Labay C, Hamouda I, Tampieri F, Ginebra MP, Canal C. Production of reactive species in alginate hydrogels for cold atmospheric plasma-based therapies. Sci Rep 2019; 9:16160. [PMID: 31695110 PMCID: PMC6834627 DOI: 10.1038/s41598-019-52673-w] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 10/21/2019] [Indexed: 02/06/2023] Open
Abstract
In the last years, great advances have been made in therapies based in cold atmospheric plasmas (CAP). CAP generate reactive oxygen and nitrogen species (RONS) which can be transferred to liquids. These CAP activated liquids display the same biological efficacy (i.e. on killing cancer cells) as CAP themselves, opening the door for minimally invasive therapies. However, injection of a liquid in the body results in fast diffusion due to extracellular fluids and blood flow. Therefore, the development of efficient vehicles which allow local confinement and delivery of RONS to the diseased site is a fundamental requirement. In this work, we investigate the generation of RONS (H2O2, NO2-, short-lived RONS) in alginate hydrogels by comparing two atmospheric pressure plasma jets: kINPen and a helium needle, at a range of plasma treatment conditions (time, gas flow, distance to the sample). The physic-chemical properties of the hydrogels remain unchanged by the plasma treatment, while the hydrogel shows several-fold larger capacity for generation of RONS than a typical isotonic saline solution. Part of the RONS are quickly released to a receptor media, so special attention has to be put on the design of hydrogels with in-situ crosslinking. Remarkably, the hydrogels show capacity for sustained release of the RONS. The plasma-treated hydrogels remain fully biocompatible (due the fact that the species generated by plasma are previously washed away), indicating that no cytotoxic modifications have occurred on the polymer. Moreover, the RONS generated in alginate solutions showed cytotoxic potential towards bone cancer cells. These results open the door for the use of hydrogel-based biomaterials in CAP-associated therapies.
Collapse
Affiliation(s)
- Cédric Labay
- Biomaterials, Biomechanics and Tissue Engineering Group, Dpt. Materials Science and Metallurgy, Universitat Politècnica de Catalunya (UPC), Escola d'Enginyeria Barcelona Est (EEBE), c/Eduard Maristany 14, 08019, Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, Spain
- Research Centre for Biomedical Engineering (CREB), UPC, Barcelona, Spain
| | - Inès Hamouda
- Biomaterials, Biomechanics and Tissue Engineering Group, Dpt. Materials Science and Metallurgy, Universitat Politècnica de Catalunya (UPC), Escola d'Enginyeria Barcelona Est (EEBE), c/Eduard Maristany 14, 08019, Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, Spain
- Research Centre for Biomedical Engineering (CREB), UPC, Barcelona, Spain
| | - Francesco Tampieri
- Biomaterials, Biomechanics and Tissue Engineering Group, Dpt. Materials Science and Metallurgy, Universitat Politècnica de Catalunya (UPC), Escola d'Enginyeria Barcelona Est (EEBE), c/Eduard Maristany 14, 08019, Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, Spain
- Research Centre for Biomedical Engineering (CREB), UPC, Barcelona, Spain
| | - Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Dpt. Materials Science and Metallurgy, Universitat Politècnica de Catalunya (UPC), Escola d'Enginyeria Barcelona Est (EEBE), c/Eduard Maristany 14, 08019, Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, Spain
- Research Centre for Biomedical Engineering (CREB), UPC, Barcelona, Spain
- Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology (BIST), c/Baldiri i Reixach 10-12, 08028, Barcelona, Spain
| | - Cristina Canal
- Biomaterials, Biomechanics and Tissue Engineering Group, Dpt. Materials Science and Metallurgy, Universitat Politècnica de Catalunya (UPC), Escola d'Enginyeria Barcelona Est (EEBE), c/Eduard Maristany 14, 08019, Barcelona, Spain.
- Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, Spain.
- Research Centre for Biomedical Engineering (CREB), UPC, Barcelona, Spain.
| |
Collapse
|
36
|
|