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Haghighatafshar H, Golestani Eimani B, Moazamian E, Amani J. Cytotoxic and apoptotic effects of chemically synthesized silver nanoparticles loaded with recombinant Staphylococcus LukS-PV toxin. J Biotechnol 2023; 373:42-48. [PMID: 37421980 DOI: 10.1016/j.jbiotec.2023.07.001] [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: 09/06/2022] [Revised: 06/13/2023] [Accepted: 07/02/2023] [Indexed: 07/10/2023]
Abstract
Chronic myeloid leukemia (CML) accounts for approximately 15% of leukemias. LukS-PV, a Panton-Valentine leucocidin (PVL) component, is secreted by Staphylococcus aureus. Silver nanoparticles have increasingly been used for different purposes, most notably for drug delivery and anticancer agents. In this work, the cytotoxicity effect of recombinant LukS-PV protein, chemically synthesized AgNPs, and recombinant LukS-PV protein-loaded silver nanoparticles was investigated on human Chronic myeloid leukemia K562 cells and human normal embryonic kidney HEK293 cells. Cell apoptosis was investigated by staining with Annexin V/propidium iodide. The recombinant LukS-PV protein-loaded silver nanoparticles exhibited dose-dependent cytotoxicity and induced apoptosis in the K562 cells but had little effect on normal HEK293 cells. After 24 h of exposure to recombinant LukS-PV protein-loaded silver nanoparticles (IC50 concentration), flow cytometry showed that 31.17% of K562 cells were apoptotic. These results indicate that recombinant LukS-PV protein-loaded silver nanoparticles maybe are a potential chemotherapeutic agent candidate against K562 cells. Hence, silver nanoparticles could be used as drug carriers for toxin release to cancer cells.
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Affiliation(s)
- Hafizeh Haghighatafshar
- Department of Microbiology, Faculty of Sciences, Agriculture and Modern Technology, Shiraz Branch, Islamic Azad University, Shiraz, Iran
| | | | - Elham Moazamian
- Department of Microbiology, Faculty of Sciences, Agriculture and Modern Technology, Shiraz Branch, Islamic Azad University, Shiraz, Iran
| | - Jafar Amani
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
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Haghighatafshar H, Golestani Eimani B, Moazamian E, Amani J. The anticancer effect of recombinant LukS-PV protein and silver nanoparticles loaded with this protein. AMB Express 2023; 13:55. [PMID: 37289339 DOI: 10.1186/s13568-023-01558-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 05/09/2023] [Indexed: 06/09/2023] Open
Abstract
LukS-PV is a component of Panton-Valentine leucocidin (PVL) and is secreted by Staphylococcus aureus. Silver nanoparticles exhibit considerable potential as anticancer agents and drug delivery systems. Drug delivery is a way to deliver medicinal combinations to achieve a beneficial therapeutic effect. In the current study, recombinant LukS-PV protein-loaded silver nanoparticles were prepared and their cytotoxicity effect was analyzed on human breast cancer cells and human normal embryonic kidneys cells by MTT assay. Apoptosis was investigated by staining with Annexin V/propidium iodide. The recombinant LukS-PV protein-loaded silver nanoparticles showed dose-dependent cytotoxicity and induced apoptosis in the MCF7 cells and had a lesser effect on HEK293 cells. After 24 h exposure to the recombinant LukS-PV protein-loaded silver nanoparticles (IC50), Annexin V-FITC/PI FCM revealed that 33.2% of MCF7 cells were apoptotic. In conclusion, recombinant LukS-PV protein-loaded silver nanoparticles probably cannot be a better alternative for the targeted healing approaches to cancer therapies. Hence, it is suggested that silver nanoparticles could be utilized as a delivery system for releasing toxins into cancer cells.
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Affiliation(s)
- Hafizeh Haghighatafshar
- Department of Microbiology, Faculty of Sciences, Agriculture and Modern Technology, Shiraz Branch, Islamic Azad University, Shiraz, Iran
| | | | - Elham Moazamian
- Department of Microbiology, Faculty of Sciences, Agriculture and Modern Technology, Shiraz Branch, Islamic Azad University, Shiraz, Iran
| | - Jafar Amani
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
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Chen X, Zhang J, Yang M, Du G, Chen F. Methicillin-Resistant Staphylococcus aureus Membrane Vesicles Inhibit the Proliferation and Induce the Apoptosis of Epithelial Cells. Pathogens 2022; 11:pathogens11121429. [PMID: 36558763 PMCID: PMC9781941 DOI: 10.3390/pathogens11121429] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/17/2022] [Accepted: 11/25/2022] [Indexed: 11/29/2022] Open
Abstract
Staphylococcus aureus, or methicillin-resistant Staphylococcus aureus (MRSA), is the predominant pathogen in skin and soft tissue infections (SSTIs), and MRSA membrane vesicles (MVs) play a pivotal role in bacterial pathogenesis and the modulation of the host immune response. We aimed to investigate the interaction between MRSA MVs and epithelial cells. In this study, MVs were isolated from an MRSA culture supernatant using the ELD method, comprising an electrophoretic technique used in combination with a 300 kDa cut-off dialysis bag. The proteomic analysis of the MRSA MVs via mass spectrometry showed that shared and distinct proteins exist in the MVs from clinical MRSA isolates with different genetic backgrounds, such as health-care-associated MRSA (HA-MRSA) and community-associated MRSA (CA-MRSA). These MRSA MVs were found to suppress the proliferation and increase the apoptosis of HaCaT cells. We conducted qPCR array, quantitative real-time PCR (qRT-PCR), and Western blotting (WB) analyses, and the results indicated that BCL2 antagonist/killer 1 (Bak1) may be involved in the apoptosis of HaCaT epithelial cells. Our findings suggest that MRSA MVs inhibit the proliferation and induce the apoptosis of epithelial cells.
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Affiliation(s)
- Xu Chen
- Department of Laboratory Medicine, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200011, China
- Correspondence: (X.C.); (F.C.); Tel.: +86-21-2327-1699 (F.C.); Fax: +86-21-6313-6856 (F.C.)
| | - Jingwei Zhang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200011, China
| | - Meng Yang
- Department of Laboratory Medicine, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200011, China
| | - Guanhuan Du
- Department of Oral Medicine, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200011, China
| | - Fuxiang Chen
- Department of Laboratory Medicine, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200011, China
- Faculty of Medical Laboratory Science, Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200025, China
- Correspondence: (X.C.); (F.C.); Tel.: +86-21-2327-1699 (F.C.); Fax: +86-21-6313-6856 (F.C.)
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Nie Z, Shi L, Song K, Xu X, Ding P, Lu B, Wu G, Ma X. LukS-PV inhibits the proliferation of hepatocellular carcinoma cells by maintaining FOXO3 stability via the PI3K/AKT signaling pathway. Cell Signal 2022; 95:110357. [PMID: 35589047 DOI: 10.1016/j.cellsig.2022.110357] [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: 12/14/2021] [Revised: 05/12/2022] [Accepted: 05/12/2022] [Indexed: 12/24/2022]
Abstract
Hepatocellular carcinoma(HCC) is one of the common malignant tumors. LukS-PV is the S component of Panton-Valetine leukocidin(PVL) secreted by Staphylococcus aureus. Forkhead box O3 (FOXO3) is a member of the FOXO subfamily of transcription factors that acts as a tumor suppressor. In this study, we investigated the role of LukS-PV on the proliferation of HCC and explored possible mechanisms. We treated HCC cells with various concentrations of LukS-PV and evaluated the effect of LukS-PV on cell viability using the cell counting kit-8 and colony formation assays. Real-time PCR and western blot assays were used to analyze mRNA and protein expression levels, respectively. Immunofluorescence staining was performed to examine the intracellular localization of FOXO3. The expression of FOXO3 and its downstream target genes were analyzed by immunohistochemical staining. The protein synthesis inhibitor cycloheximide and the proteosome inhibitor MG132 were used to explore the potential mechanisms by which LukS-PV regulated FOXO3. We demonstrated that LukS-PV inhibited the proliferation of HCC cells in a concentration dependent manner. LukS-PV upregulated FOXO3 expression both in vitro and in vivo. Moreover, LukS-PV facilitated the entry of FOXO3 into the nucleus and, subsequently, regulated the transcription of downstream target genes. In addition, we discovered that LukS-PV decreased the expression of phosphorylated FOXO3 through the PI3K/AKT signaling pathway and maintained FOXO3 protein stability via the ubiquitin-proteasome pathway. Taken together, our data indicated that LukS-PV exert anticancer activities through FOXO3. LukS-PV may be a promising candidate for HCC treatment.
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Affiliation(s)
- Zhengchao Nie
- The First Affifiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Lan Shi
- The First Affifiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Kaidi Song
- The First Affifiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Xuexue Xu
- The First Affifiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Pengsheng Ding
- The First Affifiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Bing Lu
- The First Affifiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Gang Wu
- The First Affifiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Xiaoling Ma
- The First Affifiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China.
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Xu LF, Shi L, Zhang SS, Ding PS, Ma F, Song KD, Qiang P, Chang WJ, Dai YY, Mei YD, Ma XL. LukS-PV Induces Apoptosis via the SET8-H4K20me1-PIK3CB Axis in Human Acute Myeloid Leukemia Cells. Front Oncol 2021; 11:718791. [PMID: 34745943 PMCID: PMC8565356 DOI: 10.3389/fonc.2021.718791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 09/22/2021] [Indexed: 12/30/2022] Open
Abstract
Evidence suggests that histone modification disorders are involved in leukemia pathogenesis. We previously reported that LukS-PV, a component of Panton-Valentine leukocidin (PVL), has antileukemia activities that can induce differentiation, increase apoptosis, and inhibit proliferation of acute myeloid leukemia (AML) cells. Furthermore, LukS-PV inhibited hepatoma progression by regulating histone deacetylation, speculating that LukS-PV may exert antileukemia activity by targeting histone modification regulators. In this study, the results showed that LukS-PV induced apoptosis by downregulating the methyltransferase SET8 and its target histone H4 monomethylated at Lys 20 (H4K20me1). Furthermore, chromatin immunoprecipitation sequencing and polymerase chain reaction identified the kinase PIK3CB as a downstream target gene for apoptosis mediated by SET8/H4K20me1. Finally, our results indicated that LukS-PV induced apoptosis via the PIK3CB-AKT-FOXO1 signaling pathway by targeting SET8. This study indicates that SET8 downregulation is one of the mechanisms by which LukS-PV induces apoptosis in AML cells, suggesting that SET8 may be a potential therapeutic target for AML. Furthermore, LukS-PV may be a drug candidate for the treatment of AML that targets epigenetic modifications.
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Affiliation(s)
- Liang Fei Xu
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Lan Shi
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Shan Shan Zhang
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Peng Sheng Ding
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Fan Ma
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Kai Di Song
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Ping Qiang
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Wen Jiao Chang
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yuan Yuan Dai
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yi De Mei
- University of Science and Technology of China, School of Life Sciences and Medicine, USTC Life Sciences, Hefei, China
| | - Xiao Ling Ma
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,University of Science and Technology of China, School of Life Sciences and Medicine, USTC Life Sciences, Hefei, China
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Ma F, Wang Z, Qiang Y, Xu L, Ding P, Wang Y, Ma X. LukS-PV Inhibits Hepatocellular Carcinoma Cells Migration via the TNNC1/PI3K/AKT Axis. Onco Targets Ther 2020; 13:10221-10230. [PMID: 33116603 PMCID: PMC7578518 DOI: 10.2147/ott.s278540] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 09/24/2020] [Indexed: 02/03/2023] Open
Abstract
Purpose Hepatocellular carcinoma (HCC) is one of the most common malignant tumors worldwide. LukS-PV is the S component of Panton-Valentine leucocidin (PVL), a toxin secreted by Staphylococcus aureus. We aimed to investigate the role of LukS-PV in HCC cell migration and the specific molecular mechanism involved. Methods We used scratch assays to detect the mobility of liver cancer cells treated with LukS-PV. Quantitative real-time PCR and Western blot analysis were performed to detect the expression levels of related genes. RNA sequencing and quantitative proteomics sequencing were used to assess the transcriptional and proteomic alterations of target genes. RNA sequencing and Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Set Enrichment Analysis (GSEA) pathway analyses revealed the downstream signaling pathway targets of LukS-PV. Results Our results demonstrated that LukS-PV could inhibit HCC cell migration in a concentration-dependent manner. LukS-PV could also downregulate the expression of TNNC1, which was highly expressed in HCC cells. Additionally, the study showed that LukS-PV inhibited HCC cell migration by downregulating TNNC1. Further studies showed that LukS-PV inhibited the phosphorylation of PI3K/AKT pathway by targeting TNNC1, thereby inhibiting HCC cell migration. Conclusion Our study demonstrated that LukS-PV has an inhibitory role in the migration of liver cancer cells through the TNNC1/PI3K/AKT axis.
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Affiliation(s)
- Fan Ma
- Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Ziran Wang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Yawen Qiang
- Department of Obstetrics and Gynecology Laboratory, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Liangfei Xu
- Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Pengsheng Ding
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Yangyan Wang
- Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Xiaoling Ma
- Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China.,Department of Clinical Laboratory, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
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Wang Z, Yu W, Qiang Y, Xu L, Ma F, Ding P, Shi L, Chang W, Mei Y, Ma X. LukS-PV Inhibits Hepatocellular Carcinoma Progression by Downregulating HDAC2 Expression. Mol Ther Oncolytics 2020; 17:547-561. [PMID: 32637573 PMCID: PMC7321822 DOI: 10.1016/j.omto.2020.05.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 05/20/2020] [Indexed: 12/24/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a common malignant tumor. LukS-PV is the S component of Panton-Valetine leukocidin (PVL), which is secreted by Staphylococcus aureus. This study investigated the effects of LukS-PV on the proliferation, apoptosis, and cell-cycle progression of HCC cells and the mechanisms of its activity. The HCC cells were treated with different LukS-PV concentrations in vitro. Cell Counting Kit-8 and 5-Ethynyl-2'-deoxyuridine (EdU) assays were used to study cell proliferation. Flow cytometry was used to measure apoptosis and cell-cycle progression. Quantitative reverse transcriptase PCR and western blot assays were used to determine mRNA and protein expression levels. Xenograft experiments were performed to determine the in vivo antitumor effect of LukS-PV. Immunostaining was performed to analyze Ki-67 and HDAC2 (histone deacetylase 2) expression. Our results showed that LukS-PV inhibited cell proliferation and induced apoptosis in a concentration-dependent manner in HCC cell lines. LukS-PV also can induce cell-cycle arrest. Moreover, we discovered that LukS-PV attenuated HDAC2 expression and upregulated PTEN; phosphorylated AKT was also reduced. Further studies demonstrated that LukS-PV treatment significantly reduced tumor growth in nude mice and suppressed Ki-67 and HDAC2 levels. Our data revealed a vital role of LukS-PV in suppressing HCC progression by downregulating HDAC2 and upregulating PTEN.
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Affiliation(s)
- Ziran Wang
- Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Wenwei Yu
- Center of Reproductive Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Yawen Qiang
- Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Liangfei Xu
- Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Fan Ma
- Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Pengsheng Ding
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Lan Shi
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Wenjiao Chang
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Yide Mei
- Division of Molecular Medicine, Hefei National Laboratory for Physical Sciences at Microscale, First Affiliated Hospital of University of Science and Technology of China, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Xiaoling Ma
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
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Tang L, Li J, Fu W, Wu W, Xu J. Suppression of FADS1 induces ROS generation, cell cycle arrest, and apoptosis in melanocytes: implications for vitiligo. Aging (Albany NY) 2019; 11:11829-11843. [PMID: 31866583 PMCID: PMC6949104 DOI: 10.18632/aging.102452] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 11/07/2019] [Indexed: 12/18/2022]
Abstract
Vitiligo is a potentially serious condition characterized by loss of melanin and death of melanocytes. To identify potential therapeutic targets for vitiligo, we conducted a microarray analysis of three human vitiligo specimens and paired adjacent normal tissues. Because we found that the fatty acid desaturase 1 (FADS1) gene was downregulated in vitiligo specimens, we carried out experiments to assess its role in melanocyte replication and survival. RT-qPCR was used to verify that FADS1 expression was lower in vitiligo-affected tissues and vitiligo melanocyte PIG3V cells than in matched controls or normal human epidermal PIG1 melanocytes. In addition, CCK-8, immunofluorescence, western blot and flow cytometry assay were used to detect the proliferation and apoptosis in PIG1 cells respectively. Overexpression of FADS1 promoted proliferation of PIG3V melanocytes, while FADS1 silencing inhibited proliferation and induced cell death in PIG1 melanocytes. Increased ROS generation; induction of mitochondrial-mediated apoptosis via upregulation of Bax and active caspases 3 and 9 and downregulation of Bcl-2; and cell cycle arrest via downregulation of c-Myc and Cyclin D1 and upregulation of p21 were all enhanced after FADS1 silencing in PIG1 melanocytes. These findings implicate FADS1 downregulation in the pathogenesis of vitiligo and may open new avenues for its treatment.
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Affiliation(s)
- Luyan Tang
- Department of Dermatology, Huashan Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Jian Li
- Department of Dermatology, Huashan Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Wenwen Fu
- Department of Dermatology, Huashan Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Wenyu Wu
- Department of Dermatology, Huashan Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Jinhua Xu
- Department of Dermatology, Huashan Hospital Affiliated to Fudan University, Shanghai 200040, China
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Quantitative proteomic analysis reveals that Luks-PV exerts antitumor activity by regulating the key proteins and metabolic pathways in HepG2 cells. Anticancer Drugs 2019; 31:223-230. [PMID: 31789624 PMCID: PMC7028286 DOI: 10.1097/cad.0000000000000866] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Hepatocellular carcinoma (HCC) is a complicated and poor prognosis cancer, necessitating the development of a potential treatment strategy. In this study, we initially revealed that LukS-PV belonged to leukocidin family performs an anti-HCC action. Then, we used liquid chromatography-mass spectrometry (LC/MS) to compare protein expression profiles of the LukS-PV-treated human HCC cell lines HepG2 and the control cells. GO annotations and Kyoto Encyclopedia of Genes and Genomes pathway analysis were carried out of differential expression followed by protein-protein interactome, to explore the underlying cancer suppressor mechanisms of LukS-PV for human HCC. A total of 88 upregulated proteins and 46 downregulated proteins were identified. The top 10 proteins identified by the MCC method are FN1, APP, TIMP1, nucleobindin-1, GOLM1, APLP2, CYR61, CD63, ENG, and CD9. Our observation on protein expression indicated that LukS-PV produces a signature affecting central carbon metabolism in cancer, galactose metabolism, and fructose and mannose metabolism pathways. The results give a functional effects and molecular mechanism insight, following LukS-PV treatment.
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Qiang Y, Ma F, Wang Z, Nie Z, Xu L, Ding P, Ma X. LukS-PV induces cell cycle arrest and apoptosis through p38/ERK MAPK signaling pathway in NSCLC cells. Biochem Biophys Res Commun 2019; 521:846-852. [PMID: 31708104 DOI: 10.1016/j.bbrc.2019.10.181] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 10/26/2019] [Indexed: 12/16/2022]
Abstract
Non-small-cell lung cancer (NSCLC) accounts for nearly 85% of lung cancer cases. LukS-PV, one of the two components of Panton-Valentine leucocidin (PVL), is produced by Staphylococcus aureus. The present study showed that LukS-PV can induce apoptosis in human acute myeloid leukemia (AML) lines (THP-1 and HL-60). However, the role of LukS-PV in NSCLC is unclear. In this study, we treated NSCLC cell lines A549 and H460 and a normal lung cell line, 16HBE, with LukS-PV and investigated the biological roles of LukS-PV in NSCLC. Cells were treated with varying concentrations of LukS-PV and cell viability was evaluated by CCK8 and EdU assay. Flow cytometry was used to detect cell apoptosis and analyze the cell cycle, and the expression of apoptosis and cell cycle-associated proteins and genes were identified by western blotting analysis and qRT-polymerase chain reaction, respectively. We found that LukS-PV inhibited the proliferation of NSCLC cells but had little cytotoxicity in normal lung cells. LukS-PV induced NSCLC cell apoptosis and increased the BAX/BCL-2 ratio, triggering S-phase arrest in A549 and H460 cells while increasing P21 expression and decreasing CDK2, cyclin D1, and cyclin A2 expression. We also observed increased P-p38 and P-ERK in NSCLC cells treated with LukS-PV. Treatment of NSCLC with LukS-PV combined with p38 and ERK inhibitors reversed the pro-apoptotic and pro-cell cycle arrest effects of LukS-PV. Overall, these findings indicate that LukS-PV has anti-tumor effects in NSCLC and may contribute to the development of anti-cancer agents.
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Affiliation(s)
- Yawen Qiang
- Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Fan Ma
- Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Ziran Wang
- Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Zhengchao Nie
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Liangfei Xu
- Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Pengsheng Ding
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Xiaoling Ma
- Department of Clinical Laboratory, Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui, China.
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Zhang P, Yu WW, Peng J, Xu LF, Zhao CC, Chang WJ, Ma XL. LukS-PV induces apoptosis in acute myeloid leukemia cells mediated by C5a receptor. Cancer Med 2019; 8:2474-2483. [PMID: 30955242 PMCID: PMC6536962 DOI: 10.1002/cam4.2137] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 03/15/2019] [Accepted: 03/15/2019] [Indexed: 01/28/2023] Open
Abstract
LukS‐PV is one of the two components of Panton‐Valentine leucocidin (PVL). Our previous study showed that LukS‐PV can induce apoptosis in human acute myeloid leukemia (AML) THP‐1 and HL‐60 cells. C5aR (C5a receptor) is the receptor for PVL, but whether C5aR plays a key role in LukS‐PV induced apoptosis is unclear. The aim of this study was to establish whether C5aR plays a physiological role in apoptosis of leukemia cells induced by LukS‐PV. We investigated the role of C5aR in leukemia cell apoptosis induced by LukS‐PV by pretreatment of THP‐1 and HL‐60 cells with C5aR antagonist and transfection to knockdown C5aR in THP‐1 cells or overexpress C5aR in Jurkat cells before treatment with LukS‐PV. Cell apoptosis was analyzed by staining with Annexin V/propidium iodide or Annexin V‐PE/7‐AAD. Mitochondrial membrane potential (MMP) was determined using JC‐1 dye. The expression of apoptosis‐associated genes and proteins was identified by qRT‐polymerase chain reaction and Western blotting analysis, respectively. As the C5aR antagonist concentration increased, the rate of apoptosis induced by LukS‐PV decreased, the MMP increased, and expression of pro‐apoptotic Bax and Bak genes and proteins was downregulated while that of anti‐apoptotic Bcl‐2 and Bcl‐x genes and proteins was upregulated. Knockdown of C5aR also decreased LukS‐PV–induced THP‐1 cell apoptosis. LukS‐PV did not induce apoptosis of Jurkat cells, which have no endogenous C5aR expression; however, LukS‐PV did induce apoptosis in Jurkat cells after overexpression of C5aR. Correspondingly, the MMP decreased and Bax and Bak were upregulated while Bcl‐2 and Bcl‐x were downregulated. LukS‐PV can induce apoptosis in AML cells by targeting C5aR. C5aR may be a potential therapeutic target for AML and LukS‐PV is a candidate targeted drug for the treatment of AML.
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Affiliation(s)
- Peng Zhang
- School of Medicine, Shandong University, Jinan, Shandong, China
| | - Wen-Wei Yu
- Department of Clinical Laboratory, Anhui Provincial Hospital, Hefei, Anhui, China
| | - Jing Peng
- Department of Clinical Laboratory, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Liang-Fei Xu
- Department of Clinical Laboratory, Anhui Provincial Hospital, Hefei, Anhui, China
| | - Chang-Cheng Zhao
- Department of Clinical Laboratory, Anhui Provincial Hospital of Infectious Disease, Hefei, Anhui, China
| | - Wen-Jiao Chang
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Xiao-Ling Ma
- Department of Clinical Laboratory, Anhui Provincial Hospital, Hefei, Anhui, China
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