1
|
Qiu H, Huang L, Wang H, Tao C, Ran Z, Xu J, Sun H, Wang P. Effects of Lactobacillus acidophilus AC on the growth, intestinal flora and metabolism of zebrafish (Danio rerio). FISH & SHELLFISH IMMUNOLOGY 2024; 149:109570. [PMID: 38643956 DOI: 10.1016/j.fsi.2024.109570] [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: 12/23/2023] [Revised: 04/12/2024] [Accepted: 04/15/2024] [Indexed: 04/23/2024]
Abstract
The intensive aquaculture model has resulted in a heightened prevalence of diseases among farmed animals. It is imperative to identify healthy and efficacious alternatives to antibiotics for the sustainable progression of aquaculture. In this investigation, a strain of Lactobacillus acidophilus AC was introduced into the cultural water at varying concentrations (105 CFU/mL, 106 CFU/mL, 107 CFU/mL) to nourish zebrafish (Danio rerio). The findings revealed that L. acidophilus AC effectively increased the growth performance of zebrafish, improved the ion exchange capacity of gills, and enhanced hepatic antioxidant and immune-enzyme activities. Furthermore, L. acidophilus AC notably enhanced the intestinal morphology and augmented the activity of digestive enzymes within the intestinal tract. Analysis of intestinal flora revealed that L. acidophilus AC exerted a significant impact on the intestinal flora community, manifested by a reduction in the relative abundance of Burkholderiales, Candidatus_Saccharibacteria_bacterium, and Sutterellaceae, coupled with an increase in the relative abundance of Cetobacterium. Metabolomics analysis demonstrated that L. acidophilus AC significantly affected intestinal metabolism of zebrafish. PG (i-19:0/PGE2) and 12-Hydroxy-13-O-d-glucuronoside-octadec-9Z-enoate were the metabolites with the most significant up- and down-regulation folds, respectively. Finally, L. acidophilus AC increased the resistance of zebrafish to Aeromonas hydrophila. In conclusion, L. acidophilus AC was effective in enhancing the health and immunity of zebrafish. Thus, our findings suggested that L. acidophilus AC had potential applications and offered a reference for its use in aquaculture.
Collapse
Affiliation(s)
- Haoyu Qiu
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Ling Huang
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Hanying Wang
- National Marine Facility Aquaculture Engineering and Technology Research Center, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Chenzhi Tao
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Zhiqiang Ran
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Jiahang Xu
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Haofeng Sun
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Ping Wang
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, 316022, China.
| |
Collapse
|
2
|
Lee MK, Chen IH, Hsu IL, Tsai WH, Lee TY, Jhong JH, Liu BC, Huang TY, Lin FK, Chang WW, Wu JH. The impact of Lacticaseibacillus paracasei GMNL-143 toothpaste on gingivitis and oral microbiota in adults: a randomized, double-blind, crossover, placebo-controlled trial. BMC Oral Health 2024; 24:477. [PMID: 38643116 PMCID: PMC11031891 DOI: 10.1186/s12903-024-04251-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 04/11/2024] [Indexed: 04/22/2024] Open
Abstract
BACKGROUND This study examines the oral health benefits of heat-killed Lacticaseibacillus paracasei GMNL-143, particularly its potential in oral microbiota alterations and gingivitis improvement. METHODS We assessed GMNL-143's in vitro interactions with oral pathogens and its ability to prevent pathogen adherence to gingival cells. A randomized, double-blind, crossover clinical trial was performed on gingivitis patients using GMNL-143 toothpaste or placebo for four weeks, followed by a crossover after a washout. RESULTS GMNL-143 showed coaggregation with oral pathogens in vitro, linked to its surface layer protein. In patients, GMNL-143 toothpaste lowered the gingival index and reduced Streptococcus mutans in crevicular fluid. A positive relationship was found between Aggregatibacter actinomycetemcomitans and gingival index changes, and a negative one between Campylobacter and gingival index changes in plaque. CONCLUSION GMNL-143 toothpaste may shift oral bacterial composition towards a healthier state, suggesting its potential in managing mild to moderate gingivitis. TRIAL REGISTRATION ID NCT04190485 ( https://clinicaltrials.gov/ ); 09/12/2019, retrospective registration.
Collapse
Affiliation(s)
- Min-Kang Lee
- Department of Dentistry, Kaohsiung Medical University Hospital, No.100, Shih-Chuan 1st Road, Sanmin Dist, Kaohsiung City, 807378, Taiwan
| | - I-Hui Chen
- Department of Dentistry, Kaohsiung Medical University Hospital, No.100, Shih-Chuan 1st Road, Sanmin Dist, Kaohsiung City, 807378, Taiwan
| | - I-Ling Hsu
- Research and Development Department, GenMont Biotech Incorporation, Tainan City, 741014, Taiwan
| | - Wan-Hua Tsai
- Research and Development Department, GenMont Biotech Incorporation, Tainan City, 741014, Taiwan
| | - Tzong-Yi Lee
- Institute of Bioinformatics and Systems Biology, National Yang Ming Chiao Tung University, Hsinchu, 300193, Taiwan
| | - Jhih-Hua Jhong
- Department of Computer Science and Engineering, Yuan Ze University, Taoyuan City, 320315, Taiwan
| | - Bai-Chia Liu
- Research and Development Department, GenMont Biotech Incorporation, Tainan City, 741014, Taiwan
| | - Tsui-Yin Huang
- Research and Development Department, GenMont Biotech Incorporation, Tainan City, 741014, Taiwan
| | - Fang-Kuei Lin
- Research and Development Department, GenMont Biotech Incorporation, Tainan City, 741014, Taiwan
| | - Wen-Wei Chang
- Departement of Biomedical Sciences, Chung Shan Medical University, No. 110, Section 1, Chien-Kuo N. Rd, Taichung City, 402306, Taiwan.
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung City, 402306, Taiwan.
| | - Ju-Hui Wu
- Department of Dentistry, Kaohsiung Medical University Hospital, No.100, Shih-Chuan 1st Road, Sanmin Dist, Kaohsiung City, 807378, Taiwan.
- Department of Oral Hygiene, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung City, 807378, Taiwan.
| |
Collapse
|
3
|
Choudhary R, Singh KS, Bisht S, Kumar S, Mohanty AK, Grover S, Kaushik JK. Host-microbe interaction and pathogen exclusion mediated by an aggregation-prone surface layer protein of Lactobacillus helveticus. Int J Biol Macromol 2023:125146. [PMID: 37271267 DOI: 10.1016/j.ijbiomac.2023.125146] [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: 03/02/2023] [Revised: 05/12/2023] [Accepted: 05/27/2023] [Indexed: 06/06/2023]
Abstract
Probiotic surface layer proteins (Slps) have multiple functions and bacterial adhesion to host cells is one of them. The precise role of Slps in cellular adhesion is not well understood due to its low native protein yield and self-aggregative nature. Here, we report the recombinant expression and purification of biologically active Slp of Lactobacillus helveticus NCDC 288 (SlpH) in high yield. SlpH is a highly basic protein (pI = 9.4), having a molecular weight of 45 kDa. Circular Dichroism showed a prevalence of beta-strands in SlpH structure and resistance to low pH. SlpH showed binding to human intestinal tissue, enteric Caco-2 cell line, and porcine gastric mucin, but not with fibronectin, collagen type IV and laminin. SlpH inhibited the binding of the enterotoxigenic E. coli by 70 % and 76 % and that of Salmonella Typhimurium SL1344 by 71 % and 75 % to enteric Caco-2 cell line in the exclusion and competition assays, respectively. The pathogen exclusion and competition activity and tolerance to harsh gastrointestinal conditions show the potential for developing SlpH as a prophylactic or therapeutic agent against enteric pathogens.
Collapse
Affiliation(s)
- Ritu Choudhary
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal 132001, (India)
| | - Kumar Siddharth Singh
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal 132001, (India)
| | - Sonu Bisht
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal 132001, (India)
| | - Sudarshan Kumar
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal 132001, (India)
| | - Ashok Kumar Mohanty
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal 132001, (India)
| | - Sunita Grover
- Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal 132001, (India)
| | - Jai Kumar Kaushik
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal 132001, (India).
| |
Collapse
|
4
|
Meng J, Wang YY, Hao YP. Application of two glycosylated Lactobacillus surface layer proteins in coating cationic liposomes. World J Microbiol Biotechnol 2023; 39:108. [PMID: 36856865 DOI: 10.1007/s11274-023-03549-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 02/14/2023] [Indexed: 03/02/2023]
Abstract
The ability of isolated surface layer proteins (SLPs) to reassemble on suitable surfaces enables the application of SLPs in various fields of nanotechnology. In this work, SLPs from Lactobacillus buchneri BNCC 187,964 and L. kefir BNCC 190,565 were extracted and verified as glycosylated proteins. They were applied to coat on the surface of cationic liposomes. The absorption of the two SLPs on liposomes induced the zeta potential reduction and particle size increase. The two kinds of SLP-coated liposomes demonstrated better thermal, light and pH stability than the control liposomes. And the L. kefir SLP showed better protective effects than the L. buchneri SLP. Moreover, both of the SLPs could endow liposomes with the function of binding ferritin as observed by transmission electron microscope. Fourier transform infrared spectroscopy illustrated that the interaction between the two SLPs and liposomes was similar. The recrystallization of the two SLPs on the liposomes might drive the lipid into a higher order state and hydrogen bonds were formed between the two SLPs and the liposomes. All the findings demonstrated that L. kefir SLP and L. buchneri SLP had great potential to be explored as effective coating agents to improve the stability and function of cationic liposomes.Please check and confirm that the authors and their respective affiliations have been correctly identified and amend if necessary.Yes, all have been checked.
Collapse
Affiliation(s)
- Jun Meng
- College of Food Science and Engineering, Henan University of Technology, 100 Lianhua Road, 450001, Zhengzhou, Henan Province, China.
| | - Yan-Yang Wang
- College of Food Science and Engineering, Henan University of Technology, 100 Lianhua Road, 450001, Zhengzhou, Henan Province, China
| | - Yun-Peng Hao
- College of Food Science and Technology, Henan Agricultural University, 95 Wenhua Road, 450002, Zhengzhou, Henan Province, China
| |
Collapse
|
5
|
A novel strategy for designing the antioxidant and adhesive bifunctional protein using the Lactobacillus strain-derived LPxTG motif structure. Process Biochem 2023. [DOI: 10.1016/j.procbio.2023.01.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
6
|
Zhang J, Li Q, Wu L, Xu S, Lu R. Protective effect of surface-layer proteins from four Lactobacillus strains on tumor necrosis factor-α-induced intestinal barrier dysfunction. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:4446-4453. [PMID: 35092610 DOI: 10.1002/jsfa.11798] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 12/31/2021] [Accepted: 01/29/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND The intestinal epithelium is considered the first defense protection against exogenous harmful substances, playing an indispensable role in regulating intestinal health. The protection offered by surface-layer proteins (Slps) from different Lactobacillus strains on an impaired intestinal barrier was investigated in this study. RESULTS Four Slps pre-incubated for 6 h significantly prevented the reduced transepithelial electrical resistance value and increased paracellular permeability in tumor necrosis factor (TNF)-α-induced Caco-2 monolayers. TNF-α induced lower protein expression of occludin and zonula occludens-1, and abnormal distributions of occludin and zonula occludens-1 were ameliorated by four Slps as well. Additionally, four Slps weakened TNF-α-evoked interleukin-8 secretion and nuclear factor-κB activation. CONCLUSION Four Slps from different strains prevent the intestinal barrier from TNF-α-induced dysfunction through blocking the nuclear factor-κB signaling pathway. © 2022 Society of Chemical Industry.
Collapse
Affiliation(s)
- Jiaojiao Zhang
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Qinpei Li
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Liying Wu
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Shichen Xu
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, Wuxi, China
| | - Rongrong Lu
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| |
Collapse
|
7
|
ZHANG X, Li Y, Zhang C, Chi H, Liu C, Li A, Yu W. Postbiotics derived from Lactobacillus plantarum 1.0386 Ameliorates lipopolysaccharide-induced tight junction injury via MicroRNA-200c-3p Mediated Activation of MLCK-MLC Pathway in Caco-2 Cells. Food Funct 2022; 13:11008-11020. [DOI: 10.1039/d2fo00001f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
L. plantarum 1.0386 could repair the intestinal epithelial tight junction injury, and the present study was designed to further explore the role of its postbiotics, including surface protein (1.0386-Slp), peptidase...
Collapse
|
8
|
Fu M, Mao K, Gao J, Wang X, Sadiq FA, Li J, Sang Y. Characteristics of surface layer protein from Lactobacillus kefiri HBA20 and the role in mediating interactions with Saccharomyces cerevisiae Y8. Int J Biol Macromol 2021; 201:254-261. [PMID: 34952095 DOI: 10.1016/j.ijbiomac.2021.12.049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 12/07/2021] [Accepted: 12/07/2021] [Indexed: 11/18/2022]
Abstract
In this study, the surface layer protein (SLP) from Lactobacillus kefiri HBA20 was characterized. The SLP was extracted by 5 M LiCl. The molecular mass of the SLP was approximately 64 kDa as analyzed via SDS-PAGE. The surface morphology and the adhesion potential of L. kefiri HBA20 in the absence and presence of SLP were measured by AFM. Moreover, the protein secondary structure was evaluated by using circular dichroism (CD) and Fourier transform infrared spectroscopy (FTIR), respectively. SLP had high β-sheet contents and low content of α-helix. Thermal analysis of SLP of Lactobacillus kefiri HBA20 exhibited one transition peak at 129.64 °C. Furthermore, SEM measurements were showed that after the SLP were removed from the cell surface, the coaggregation ability with Saccharomyces cerevisiae Y8 of the strain was significantly reduced. In conclusion, the SLP of Lactobacillus kefiri HBA20 has a stable structure and the ability of adhesion to yeast. Molecular docking study revealed that mannan bind with the hydrophobic residues of SLP. Our results will help further understanding of the new surface layer protein and the interaction between L. kefiri and S. cerevisiae.
Collapse
Affiliation(s)
- Mengqi Fu
- Collage of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Kemin Mao
- Collage of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Jie Gao
- Collage of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Xianghong Wang
- Collage of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | | | - Jiale Li
- Collage of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Yaxin Sang
- Collage of Food Science and Technology, Hebei Agricultural University, Baoding, China.
| |
Collapse
|
9
|
Protective function of surface layer protein from Lactobacillus casei fb05 against intestinal pathogens in vitro. Biochem Biophys Res Commun 2021; 546:15-20. [PMID: 33561743 DOI: 10.1016/j.bbrc.2021.01.101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 01/28/2021] [Indexed: 11/22/2022]
Abstract
Escherichia coli and Salmonella are common pathogenic bacteria in human intestine, which can infect epithelial cells and cause diseases. Adhesion to intestinal tissue is the first step of pathogen infection. This work was to investigate the protective function of surface layer protein (SLP) from Lactobacillus casei fb05 against the harmful effects of E. coli and Salmonella on intestinal tissue (collagen and HT-29 cells). The SLP of L. casei fb05 was identified by transmission electron microscopy and SDS-PAGE. The purified SLP could reduce the adhesion of E. coli and Salmonella to collagen and HT-29 cells as observed by light microscope. The flow cytometry results showed that the L. casei fb05 SLP decreased the two pathogens-induced apoptosis of HT-29 cells by about 45%-49%. In addition, the activation of caspase-9 and caspase-3 caused by the two pathogens was significantly declined by the interference of the L. casei fb05 SLP. All the findings demonstrated that the L. casei fb05 SLP could decrease the deleterious effects of E. coli and Salmonella on intestinal tract in two ways: reducing pathogen adhesion and inhibiting pathogen-induced apoptosis. The potential of L. casei fb05 SLP in the treatment of intestinal diseases might be explored in this work.
Collapse
|
10
|
Zhou X, Wang C, Sun X, Zhao Z, Guo M. Effects of High Intensity Ultrasound on Physiochemical and Structural Properties of Goat Milk β-Lactoglobulin. MOLECULES (BASEL, SWITZERLAND) 2020; 25:molecules25163637. [PMID: 32785104 PMCID: PMC7464314 DOI: 10.3390/molecules25163637] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/21/2020] [Accepted: 08/09/2020] [Indexed: 11/21/2022]
Abstract
This study aimed to compare the effects of high intensity ultrasound (HIU) applied at various amplitudes (20~40%) and for different durations (1~10 min) on the physiochemical and structural properties of goat milk β-lactoglobulin. No significant change was observed in the protein electrophoretic patterns by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). Deconvolution and second derivative of the Fourier transform infrared spectra (FTIR) showed that the percentage of β-sheet of goat milk β-lactoglobulin was significantly decreased while those of α-helix and random coils increased after HIU treatment The surface hydrophobicity index and intrinsic fluorescence intensity of samples was enhanced and increased with increasing HIU amplitude or time. Differential scanning calorimetry (DSC) results exhibited that HIU treatments improved the thermal stability of goat milk β-lactoglobulin. Transmission electron microscopy (TEM) of samples showed that the goat milk β-lactoglobulin microstructure had changed and it contained larger aggregates when compared with the untreated goat milk β-lactoglobulin sample. Data suggested that HIU treatments resulted in secondary and tertiary structural changes of goat milk β-lactoglobulin and improved its thermal stability.
Collapse
Affiliation(s)
- Xinhui Zhou
- Key Laboratory of Dairy Science, Northeast Agricultural University, Harbin 150030, China; (X.Z.); (C.W.); (X.S.); (Z.Z.)
| | - Cuina Wang
- Key Laboratory of Dairy Science, Northeast Agricultural University, Harbin 150030, China; (X.Z.); (C.W.); (X.S.); (Z.Z.)
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Xiaomeng Sun
- Key Laboratory of Dairy Science, Northeast Agricultural University, Harbin 150030, China; (X.Z.); (C.W.); (X.S.); (Z.Z.)
| | - Zixuan Zhao
- Key Laboratory of Dairy Science, Northeast Agricultural University, Harbin 150030, China; (X.Z.); (C.W.); (X.S.); (Z.Z.)
| | - Mingruo Guo
- Key Laboratory of Dairy Science, Northeast Agricultural University, Harbin 150030, China; (X.Z.); (C.W.); (X.S.); (Z.Z.)
- Department of Nutrition and Food Sciences, College of Agriculture and Life Sciences, University of Vermont, Burlington, VT 05405, USA
- Correspondence: ; Tel.: +1-802-656-8168; Fax: +1-802-656-0001
| |
Collapse
|
11
|
Wang H, Cheng X, Zhang L, Xu S, Zhang Q, Lu R. A surface-layer protein from Lactobacillus acidophilus NCFM induces autophagic death in HCT116 cells requiring ROS-mediated modulation of mTOR and JNK signaling pathways. Food Funct 2020; 10:4102-4112. [PMID: 31233063 DOI: 10.1039/c9fo00109c] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A surface-layer protein (Slp) derived from Lactobacillus acidophilus NCFM has been reported to possess multiple biological properties, including anti-inflammatory, inhibition of apoptosis in pathogen-invaded HT-29 cells and oxidative stress relief. However, its anti-tumor ability and underlying molecular mechanism are unknown. Here, we report that Slp suppresses cell proliferation and induces autophagic cell death in HCT116 cells. Accumulation of Beclin-1 and microtubule-associated protein 1 light chain 3 from II (LC3-II), and the degradation of p62 were observed when cells were treated with various concentrations of Slp (25, 50, 100 μg mL-1) for 24 h. We also found that the mammalian targets of rapamycin (mTOR) and c-Jun N-terminal kinase (JNK) signaling pathways were crucial mediators regulating Slp-induced autophagic cell death. Additionally, treatment with Slp resulted in the obvious formation of reactive oxygen species (ROS). SP600125, a JNK inhibitor, and N-acetylcysteine (NAC), a ROS inhibitor, attenuated Slp-induced autophagic cell death in HCT116 cells. Furthermore, NAC was found to prevent Slp-induced p70 and JNK phosphorylation. Taken together, our results suggest a novel mechanism of action of Slp induced autophagy, acting simultaneously through the ROS-mediated mTOR and JNK signaling pathways in HCT116 colon cancer cells.
Collapse
Affiliation(s)
- Huifang Wang
- School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu 214122, China.
| | - Xian Cheng
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, 20 Qian Rong, Wuxi, Jiangsu 214063, China
| | - Li Zhang
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, 20 Qian Rong, Wuxi, Jiangsu 214063, China
| | - Shichen Xu
- Jiangsu Institute of Nuclear Medicine, Key Laboratory of Nuclear Medicine, Ministry of Health, 20 Qian Rong, Wuxi, Jiangsu 214063, China
| | - Qiuxiang Zhang
- School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu 214122, China.
| | - Rongrong Lu
- School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu 214122, China.
| |
Collapse
|