1
|
Mohany KM, Abdel Shakour AB, Mohamed SI, Hanna RS, Nassar AY. Cytotoxic n-Hexane Fraction of the Egyptian Pteris vittata Functions as Anti-breast Cancer Through Coordinated Actions on Apoptotic and Autophagic Pathways. Appl Biochem Biotechnol 2023; 195:6927-6941. [PMID: 36951939 PMCID: PMC10643356 DOI: 10.1007/s12010-023-04464-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/15/2023] [Indexed: 03/24/2023]
Abstract
We investigated the possible anticancer mechanisms of Pteris vittata [PV] n-hexane extract on MCF-7 [breast cancer cell line]. Cultured cell lines were treated with various concentrations of this extract ± Baf-A1 [autophagic inhibitor]. Cells' viability, apoptotic markers [caspase-7, Bax, and Bcl-2], autophagic markers [light chain 3 [LC-3] and P62/SQSTM1]], and the tumor suppressor P53 and its mRNA were checked by their corresponding methods. Treated cell lines showed significant concentration and time-dependent reductions in cell viability in response to PV-n-hexane extract and also exhibited a concomitant induction of apoptosis [increased chromatin condensation, nuclear fragmentation, and pro-apoptotic Bax, and cleaved caspase-7 levels while decreased Bcl-2 levels] and autophagy [increased autophagosomes vacuoles, and LC3B II levels while decreased P62/SQSTM1 levels]. Moreover, PV-n-hexane extract-treated cells showed significant increases in the P53 and its mRNA levels. The addition of Baf-A1 reversed the PV-n-hexane extract autophagic effects and increased apoptotic cell percentage with a much increase in the cleaved caspase-7 and P53 protein and its mRNA levels. We concluded that the PV-n-hexane extract exhibits cytotoxic effects on the MCF-7 cell line with significant reductions in cell viability and concomitant autophagy and apoptosis induction. Inhibition of autophagy in the PV-treated MCF-7 cells enhances apoptosis via a p35-dependent pathway.
Collapse
Affiliation(s)
- Khalid M Mohany
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Assiut University, Assiut, 71515, Egypt.
| | - Abo Bakr Abdel Shakour
- Laboratory of Molecular and Cell Biology, Department of Zoology, Faculty of Science, Assiut University, Assiut, 71515, Egypt
| | | | - Randa Samir Hanna
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Assiut University, Assiut, 71515, Egypt
| | - Ahmed Y Nassar
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Assiut University, Assiut, 71515, Egypt
| |
Collapse
|
2
|
Strzyga-Łach P, Chrzanowska A, Kiernozek-Kalińska E, Żyżyńska-Granica B, Podsadni K, Podsadni P, Bielenica A. Proapoptotic effects of halogenated bis-phenylthiourea derivatives in cancer cells. Arch Pharm (Weinheim) 2023; 356:e2300105. [PMID: 37401845 DOI: 10.1002/ardp.202300105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 06/07/2023] [Accepted: 06/14/2023] [Indexed: 07/05/2023]
Abstract
New halogenated thiourea derivatives were synthesized via the reaction of substituted phenylisothiocyanates with aromatic amines. Their cytotoxic activity was examined in in vitro studies against solid tumors (SW480, SW620, PC3), a hematological malignance (K-562), and normal keratinocytes (HaCaT). Most of the compounds were more effective against SW480 (1a, 3a, 3b, 5j), K-562 (2b, 3a, 4a), or PC3 (5d) cells than cisplatin, with favorable selectivity. Their anticancer mechanisms were studied by Annexin V-fluorescein-5-isothiocyanate apoptosis, caspase-3/caspase-7 assessment, cell cycle analysis, interleukin-6 (IL-6) release inhibition, and reactive oxygen species (ROS) generation assay. Thioureas 1a, 2b, 3a, and 4a were the most potent activators of early apoptosis in K-562 cells, and substances 1a, 3b, 5j triggered late-apoptosis or necrosis in SW480 cells. This proapoptotic effect was proved by the significant increase of caspase-3/caspase-7 activation. Cell cycle analysis revealed that derivatives 1a, 3a, 5j increased the number of SW480 and K-562 cells in the sub-G1 and/or G0/G1 phases, and one evoked cycle arrest at the G2 phase. The most potent thioureas inhibited IL-6 cytokine secretion from PC3 cells and both colon cancer cell lines. Apoptosis-inducing compounds also increased ROS production in all tumor cell cultures, which may enhance their anticancer properties.
Collapse
Affiliation(s)
- Paulina Strzyga-Łach
- Chair and Department of Biochemistry, Medical University of Warsaw, Warsaw, Poland
| | - Alicja Chrzanowska
- Chair and Department of Biochemistry, Medical University of Warsaw, Warsaw, Poland
| | | | | | - Katarzyna Podsadni
- Chair and Department of Biochemistry, Medical University of Warsaw, Warsaw, Poland
| | - Piotr Podsadni
- Department of Drug Technology and Pharmaceutical Biotechnology, Faculty of Pharmacy, Medical University of Warsaw, Warsaw, Poland
| | - Anna Bielenica
- Chair and Department of Biochemistry, Medical University of Warsaw, Warsaw, Poland
| |
Collapse
|
3
|
El-Fakharany ZS, Nissan YM, Sedky NK, Arafa RK, Abou-Seri SM. New proapoptotic chemotherapeutic agents based on the quinolone-3-carboxamide scaffold acting by VEGFR-2 inhibition. Sci Rep 2023; 13:11346. [PMID: 37443185 PMCID: PMC10444817 DOI: 10.1038/s41598-023-38264-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023] Open
Abstract
In the current study, we designed and synthesized a series of new quinoline derivatives 10a-p as antiproliferative agents targeting cancer through inhibition of VEGFR-2. Preliminary molecular docking to assess the interactions of the designed derivatives with the binding site of VEGFR-2 (PDB code: 4ASD) displayed binding poses and interactions comparable to sorafenib. The synthesized compounds exhibited VEGFR-2 inhibitory activity with IC50 ranging from 36 nM to 2.23 μM compared to sorafenib (IC50 = 45 nM), where derivative 10i was the most potent. Additionally, the synthesized derivatives were evaluated in vitro for their cytotoxic activity against HepG2 cancer cell line. Seven compounds 10a, 10c, 10d, 10e, 10i, 10n and 10o (IC50 = 4.60, 4.14, 1.07, 0.88, 1.60, 2.88 and 2.76 μM respectively) displayed better antiproliferative activity than sorafenib (IC50 = 8.38 μM). Compound 10i was tested against Transformed Human Liver Epithelial-2 normal cell line (THLE-2) to evaluate its selective cytotoxicity. Furthermore, 10i, as a potent representative of the series, was assayed for its apoptotic activity and cell cycle kinetics' influence on HepG2, its effects on the gene expression of VEGFR-2, and protein expression of the apoptotic markers Caspase-7 and Bax. Compound 10i proved to have a potential role in apoptosis by causing significant increase in the early and late apoptotic quartiles, a remarkable activity in elevating the relative protein expression of Bax and Caspase-7 and a significant reduction of VEGFR-2 gene expression. Collectively, the obtained results indicate that compound 10i has a promising potential as a lead compound for the development of new anticancer agents.
Collapse
Affiliation(s)
- Zeinab S El-Fakharany
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, October University for Modern Sciences and Arts, Cairo, 12451, Egypt
| | - Yassin M Nissan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, October University for Modern Sciences and Arts, Cairo, 12451, Egypt
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo, 11562, Egypt
| | - Nada K Sedky
- Department of Biochemistry, School of Life and Medical Sciences, University of Hertfordshire Hosted By Global Academic Foundation, New Administrative Capital, Cairo, Egypt
| | - Reem K Arafa
- Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, October Gardens, 6th of October City, Giza, 12578, Egypt.
- Drug Design and Discovery Lab, Zewail City of Science and Technology, Cairo, 12578, Egypt.
| | - Sahar M Abou-Seri
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo, 11562, Egypt.
| |
Collapse
|
4
|
Dietz L, Ellison CJ, Riechmann C, Cassidy CK, Felfoldi FD, Pinto-Fernández A, Kessler BM, Elliott PR. Structural basis for SMAC-mediated antagonism of caspase inhibition by the giant ubiquitin ligase BIRC6. Science 2023; 379:1112-1117. [PMID: 36758106 DOI: 10.1126/science.ade8840] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 01/31/2023] [Indexed: 02/11/2023]
Abstract
Certain inhibitor of apoptosis (IAP) family members are sentinel proteins that prevent untimely cell death by inhibiting caspases. Antagonists, including second mitochondria-derived activator of caspases (SMAC), regulate IAPs and drive cell death. Baculoviral IAP repeat-containing protein 6 (BIRC6), a giant IAP with dual E2 and E3 ubiquitin ligase activity, regulates programmed cell death through unknown mechanisms. We show that BIRC6 directly restricts executioner caspase-3 and -7 and ubiquitinates caspase-3, -7, and -9, working exclusively with noncanonical E1, UBA6. Notably, we show that SMAC suppresses both mechanisms. Cryo-electron microscopy structures of BIRC6 alone and in complex with SMAC reveal that BIRC6 is an antiparallel dimer juxtaposing the substrate-binding module against the catalytic domain. Furthermore, we discover that SMAC multisite binding to BIRC6 results in a subnanomolar affinity interaction, enabling SMAC to competitively displace caspases, thus antagonizing BIRC6 anticaspase function.
Collapse
Affiliation(s)
- Larissa Dietz
- Department of Biochemistry, University of Oxford, Oxford, OX1 3QU, UK
| | - Cara J Ellison
- Department of Biochemistry, University of Oxford, Oxford, OX1 3QU, UK
| | - Carlos Riechmann
- Department of Biochemistry, University of Oxford, Oxford, OX1 3QU, UK
| | - C Keith Cassidy
- Department of Biochemistry, University of Oxford, Oxford, OX1 3QU, UK
| | - F Daniel Felfoldi
- Department of Biochemistry, University of Oxford, Oxford, OX1 3QU, UK
| | - Adán Pinto-Fernández
- Target Discovery Institute, Centre for Medicines Discovery, University of Oxford, Oxford, OX3 7FZ, UK
- Chinese Academy for Medical Sciences Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7FZ, UK
| | - Benedikt M Kessler
- Target Discovery Institute, Centre for Medicines Discovery, University of Oxford, Oxford, OX3 7FZ, UK
- Chinese Academy for Medical Sciences Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7FZ, UK
| | - Paul R Elliott
- Department of Biochemistry, University of Oxford, Oxford, OX1 3QU, UK
| |
Collapse
|
5
|
Hughes SA, Lin M, Weir A, Huang B, Xiong L, Chua NK, Pang J, Santavanond JP, Tixeira R, Doerflinger M, Deng Y, Yu C, Silke N, Conos SA, Frank D, Simpson DS, Murphy JM, Lawlor KE, Pearson JS, Silke J, Pellegrini M, Herold MJ, Poon IKH, Masters SL, Li M, Tang Q, Zhang Y, Rashidi M, Geng L, Vince JE. Caspase-8-driven apoptotic and pyroptotic crosstalk causes cell death and IL-1β release in X-linked inhibitor of apoptosis (XIAP) deficiency. EMBO J 2023; 42:e110468. [PMID: 36647737 PMCID: PMC9975961 DOI: 10.15252/embj.2021110468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 12/08/2022] [Accepted: 12/19/2022] [Indexed: 01/18/2023] Open
Abstract
Genetic lesions in X-linked inhibitor of apoptosis (XIAP) pre-dispose humans to cell death-associated inflammatory diseases, although the underlying mechanisms remain unclear. Here, we report that two patients with XIAP deficiency-associated inflammatory bowel disease display increased inflammatory IL-1β maturation as well as cell death-associated caspase-8 and Gasdermin D (GSDMD) processing in diseased tissue, which is reduced upon patient treatment. Loss of XIAP leads to caspase-8-driven cell death and bioactive IL-1β release that is only abrogated by combined deletion of the apoptotic and pyroptotic cell death machinery. Namely, extrinsic apoptotic caspase-8 promotes pyroptotic GSDMD processing that kills macrophages lacking both inflammasome and apoptosis signalling components (caspase-1, -3, -7, -11 and BID), while caspase-8 can still cause cell death in the absence of both GSDMD and GSDME when caspase-3 and caspase-7 are present. Neither caspase-3 and caspase-7-mediated activation of the pannexin-1 channel, or GSDMD loss, prevented NLRP3 inflammasome assembly and consequent caspase-1 and IL-1β maturation downstream of XIAP inhibition and caspase-8 activation, even though the pannexin-1 channel was required for NLRP3 triggering upon mitochondrial apoptosis. These findings uncouple the mechanisms of cell death and NLRP3 activation resulting from extrinsic and intrinsic apoptosis signalling, reveal how XIAP loss can co-opt dual cell death programs, and uncover strategies for targeting the cell death and inflammatory pathways that result from XIAP deficiency.
Collapse
|
6
|
Noureldeen AFH, Aziz SW, Shouman SA, Mohamed MM, Attia YM, Ramadan RM, Elhady MM. Molecular Design, Spectroscopic, DFT, Pharmacological, and Molecular Docking Studies of Novel Ruthenium(III)-Schiff Base Complex: An Inhibitor of Progression in HepG2 Cells. Int J Environ Res Public Health 2022; 19:ijerph192013624. [PMID: 36294202 PMCID: PMC9603487 DOI: 10.3390/ijerph192013624] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/28/2022] [Accepted: 10/04/2022] [Indexed: 05/03/2023]
Abstract
A novel ruthenium(III)-pyrimidine Schiff base was synthesized and characterized using different analytical and spectroscopic techniques. Molecular geometries of the ligand and ruthenium complex were investigated using the DFT-B3LYP level of theory. The quantum global reactivity descriptors were also calculated. Various biological and molecular docking studies of the complex are reported to explore its potential application as a therapeutic drug. Cytotoxicity of the complex was screened against cancer colorectal (HCT116), breast (MCF-7 and T47D), and hepatocellular (HepG2) cell lines as well as a human normal cell line (HSF). The complex effectively inhibited the tested cancer cells with variable degree with higher activity towards HepG2 (IC50 values were 29 μM for HepG2, 38.5 μM for T47D, 39.7 μM for HCT, and 46.7 μM for MCF-7 cells). The complex induced apoptosis and cell cycle arrest in the S phase of HepG2 cells. The complex significantly induced the expression of H2AX and caspase 3 and caspase 7 gene and the protein level of caspase 3, as well as inhibited VEGF-A and mTOR/AKT, SND1, and NF-kB gene expression. The molecular docking studies supported the increased total apoptosis of treated HepG2 cells due to strong interaction of the complex with DNA. Additionally, the possible binding interaction of the complex with caspase 3 could be responsible for the elevated activity of caspase 3-treated cells. The score values for the two receptors were -3.25 and -3.91 kcal/mol.
Collapse
Affiliation(s)
- Amani F. H. Noureldeen
- Biochemistry Department, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
- Correspondence: (A.F.H.N.); (R.M.R.)
| | - Safa W. Aziz
- Biochemistry Department, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
- Department of Laboratory and Clinical Sciences, College of Pharmacy, University of Babylon, Babylon 51002, Iraq
| | - Samia A. Shouman
- Cancer Biology Department, National Cancer Institute, Cairo University, Cairo 12613, Egypt
| | - Magdy M. Mohamed
- Biochemistry Department, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
| | - Yasmin M. Attia
- Cancer Biology Department, National Cancer Institute, Cairo University, Cairo 12613, Egypt
| | - Ramadan M. Ramadan
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
- Correspondence: (A.F.H.N.); (R.M.R.)
| | - Mostafa M. Elhady
- Biochemistry Department, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
| |
Collapse
|
7
|
Kulyar MFEA, Mo Q, Yao W, Ding Y, Yan Z, Du H, Pan H, Li K, Gao J, Shahzad M, Mansoor MK, Iqbal M, Waqas M, Akhtar M, Bhutta ZA, Li J. Chlorogenic acid suppresses miR-460a in the regulation of Bcl-2, causing interleukin-1β reduction in thiram exposed chondrocytes via caspase-3/caspase-7 pathway. Phytomedicine 2022; 104:154296. [PMID: 35809377 DOI: 10.1016/j.phymed.2022.154296] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 06/02/2022] [Accepted: 06/25/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Apoptosis is thought to be involved in all processes, including normal cell cycle, immune system, atrophy, embryonic development, and chemical-induced cellular damage. However, if the normal apoptotic process fails, the results might be disastrous, e.g., chondrocytes damage in tibial dyschondroplasia (TD). TD is a worldwide issue in the poultry sector due to thiram toxicity. Thiram (Tetramethyl thiuram disulfide) is a dithiocarbamate pesticide and fungicide commonly used in horticulture to treat grains meant for seed protection and preservation. PURPOSE According to prior studies, chlorogenic acid (CGA) is becoming essential for regulating apoptosis. But still, the specific role of CGA in chondrocyte cells remains unclear. The present study explored the molecular mechanism of CGA on chondrocytes' apoptosis with B-cell lymphoma 2 signaling under the effect of miR-460a. METHODS An in vivo and in vitro study was performed according to our previously developed methodology. Flow cytometry, western blotting, reverse transcription-quantitative polymerase chain reaction, and immunofluorescence assay were used to investigate the involvement of apoptosis and inflammasome related pathways. RESULTS The CGA decreased the apoptosis rate with the deactivation of miR-460a, accompanied by the activation of Bcl-2. The high expression of miR-460a reduced the cell viability of chondrocytes in vitro and in vivo, that led to the interleukin-1β production. While the apoptotic executioners (caspase-3 and caspase-7) acted upstream in miR-460a overexpressing cells, and its depletion downgraded these executioners. The CGA administrated cells negatively regulated miR-460a expression and thus indicating the deactivation of the apoptotic and inflammasome related pathways. CONCLUSION Chlorogenic acid had a negative effect on miR-460a, setting off specific feedback to regulate apoptotic and inflammasome pathways, which might be a key feature for chondrocytes' survival.
Collapse
Affiliation(s)
| | - Quan Mo
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Wangyuan Yao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China; Department of Microbiology and Plant Pathology, University of California-Riverside, Riverside, CA 92521, USA
| | - Yanmei Ding
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Zhang Yan
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Haitao Du
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Huachun Pan
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Kewei Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jindong Gao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Muhammad Shahzad
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Muhammad Khalid Mansoor
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Mudassar Iqbal
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China; Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Muhammad Waqas
- Faculty of Veterinary & Animal Sciences, University of Poonch Rawalakot, Azad Jammu & Kashmir, 12350, Pakistan
| | - Muhammad Akhtar
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Zeeshan Ahmad Bhutta
- College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China; Department of Microbiology and Plant Pathology, University of California-Riverside, Riverside, CA 92521, USA.
| |
Collapse
|
8
|
Gallorini M, Antonetti Lamorgese Passeri C, Cataldi A, Berardi AC, Osti L. Hyaluronic Acid Alleviates Oxidative Stress and Apoptosis in Human Tenocytes via Caspase 3 and 7. Int J Mol Sci 2022; 23:ijms23158817. [PMID: 35955953 PMCID: PMC9368776 DOI: 10.3390/ijms23158817] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/28/2022] [Accepted: 08/05/2022] [Indexed: 11/16/2022] Open
Abstract
Rotator cuff tendinopathy (RCT) is the primary reason for shoulder surgery and its clinical management is still challenging. Hyaluronic acid (HA) has been shown to have anti-inflammatory effects in vitro and in vivo under RCT conditions, characterized by an exaggerated oxidative stress (OS). However, molecular mechanisms underlying HA-related effects are still partially disclosed. With these aims, a cell model of RCT was established by exposing primary human tenocytes to H2O2 for up to 72 h. Four different HAs by molecular weight were administered to measure nitric oxide (NO) and OS, apoptosis, and collagen 1 expression. In parallel, the well-known antioxidant ascorbic acid was administered for comparison. The present study highlights that HAs characterized by a low molecular weight are able to counteract the H2O2-induced OS by decreasing the percentage of apoptotic cells and reversing the activation of caspase 3 and 7. Likewise, NO intracellular levels are comparable to the ones of controls. In parallel, collagen 1 expression was ameliorated by HAs characterized by higher molecular weights compared to AA. These findings confirm that HA plays an antioxidant role comparable to AA depending on the molecular weight, and highlight the molecular mechanisms underlying the HA anti-apoptotic effects.
Collapse
Affiliation(s)
- Marialucia Gallorini
- Department of Pharmacy, University “G. d’Annunzio” Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy
| | | | - Amelia Cataldi
- Department of Pharmacy, University “G. d’Annunzio” Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy
| | - Anna Concetta Berardi
- Laboratory of Stem Cells, Department of Haematology, Transfusion Medicine and Biotechnologies, Santo Spirito Hospital, 65124 Pescara, Italy
- Correspondence: or
| | - Leonardo Osti
- Unit of Arthroscopy and Sports Medicine, Hesperia Hospital, 41125 Modena, Italy
| |
Collapse
|
9
|
Nozaki K, Maltez VI, Rayamajhi M, Tubbs AL, Mitchell JE, Lacey CA, Harvest CK, Li L, Nash WT, Larson HN, McGlaughon BD, Moorman NJ, Brown MG, Whitmire JK, Miao EA. Caspase-7 activates ASM to repair gasdermin and perforin pores. Nature 2022; 606:960-967. [PMID: 35705808 PMCID: PMC9247046 DOI: 10.1038/s41586-022-04825-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 04/29/2022] [Indexed: 12/15/2022]
Abstract
Among the caspases that cause regulated cell death, a unique function for caspase-7 has remained elusive. Caspase-3 performs apoptosis, whereas caspase-7 is typically considered an inefficient back-up. Caspase-1 activates gasdermin D pores to lyse the cell; however, caspase-1 also activates caspase-7 for unknown reasons1. Caspases can also trigger cell-type-specific death responses; for example, caspase-1 causes the extrusion of intestinal epithelial cell (IECs) in response to infection with Salmonella enterica subsp. enterica serovar Typhimurium (S. Typhimurium)2,3. Here we show in both organoids and mice that caspase-7-deficient IECs do not complete extrusion. Mechanistically, caspase-7 counteracts gasdermin D pores and preserves cell integrity by cleaving and activating acid sphingomyelinase (ASM), which thereby generates copious amounts of ceramide to enable enhanced membrane repair. This provides time to complete the process of IEC extrusion. In parallel, we also show that caspase-7 and ASM cleavage are required to clear Chromobacterium violaceum and Listeria monocytogenes after perforin-pore-mediated attack by natural killer cells or cytotoxic T lymphocytes, which normally causes apoptosis in infected hepatocytes. Therefore, caspase-7 is not a conventional executioner but instead is a death facilitator that delays pore-driven lysis so that more-specialized processes, such as extrusion or apoptosis, can be completed before cell death. Cells must put their affairs in order before they die.
Collapse
Affiliation(s)
- Kengo Nozaki
- Department of Immunology, Duke University School of Medicine, Durham, NC, USA
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA
| | - Vivien I Maltez
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Manira Rayamajhi
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Alan L Tubbs
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Joseph E Mitchell
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Carolyn A Lacey
- Department of Immunology, Duke University School of Medicine, Durham, NC, USA
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA
| | - Carissa K Harvest
- Department of Immunology, Duke University School of Medicine, Durham, NC, USA
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Lupeng Li
- Department of Immunology, Duke University School of Medicine, Durham, NC, USA
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - William T Nash
- Department of Medicine, Division of Nephrology and the Beirne B. Carter Center for Immunology Research, University of Virginia, Charlottesville, VA, USA
| | - Heather N Larson
- Department of Immunology, Duke University School of Medicine, Durham, NC, USA
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA
| | - Benjamin D McGlaughon
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Nathaniel J Moorman
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Michael G Brown
- Department of Medicine, Division of Nephrology and the Beirne B. Carter Center for Immunology Research, University of Virginia, Charlottesville, VA, USA
| | - Jason K Whitmire
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Edward A Miao
- Department of Immunology, Duke University School of Medicine, Durham, NC, USA.
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA.
| |
Collapse
|
10
|
Yang X, Zhang M, Su T, Tang S, Wang Y, Liu H, Wang P, Wang J, Pan X. TIPE2 Inhibits Migration and Promotes Apoptosis as a Tumor Suppressor in Hypopharyngeal Carcinoma. Curr Protein Pept Sci 2022; 23:424-436. [PMID: 35894468 DOI: 10.2174/1389203723666220727090317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/23/2022] [Accepted: 05/23/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Hypopharyngeal squamous cell carcinoma (HSCC) is a common malignant cancer characterized by high metastasis and infiltration. The development of new approaches for the early diagnosis and identification of new therapeutic targets is essential. TIPE2 is well known as a tumor suppressor and related to a favorable prognosis of HSCC. However, its underlying mechanism remains unclear. METHODS AND MATERIALS TIPE2 expression was determined by immunohistochemistry and RT-qPCR. A TIPE2 overexpression stable cell line was generated by lentivirus infection. TIPE2 and other related protein levels were detected by western blotting. The cell cycle and apoptosis were performed by flow cytometric analysis. Cell proliferation was measured with a Cell Counting Kit-8 (CCK-8) assay, and the activity of caspase-3 and caspase-7 was assessed by Caspase-Glo® 3/7 Assay. All data were analyzed with SPSS 25 and GraphPad Prism 8.0. RESULTS TIPE2 expression was significantly down-regulated in HSCC. Low TIPE2 expression may be associated with poor prognosis in HSCC. TIPE2 overexpression markedly inhibited tumor cell migration. Moreover, TIPE2 decreased cell proliferation but promoted apoptosis. TIPE2 suppressed tumor growth by activating Epithelial-Mesenchymal Transition (EMT) and the extrinsic apoptosis pathway. CONCLUSION TIPE2 inhibited tumor progression by suppressing cell migration but promoting apoptosis. TIPE2 can be a new therapeutic target in HSCC.
Collapse
Affiliation(s)
- Xiaoqi Yang
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Jinan, China
- NHC Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, Shandong 250012, China
| | - Minfa Zhang
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Jinan, China
- NHC Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, Shandong 250012, China
| | - Tongdong Su
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Jinan, China
- NHC Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, Shandong 250012, China
| | - Shuangmei Tang
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Jinan, China
- NHC Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, Shandong 250012, China
| | - Yin Wang
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Jinan, China
- NHC Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, Shandong 250012, China
| | - Heng Liu
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Jinan, China
- NHC Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, Shandong 250012, China
| | - Pin Wang
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Jinan, China
- NHC Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, Shandong 250012, China
| | - Juan Wang
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Jinan, China
- NHC Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, Shandong 250012, China
| | - Xinliang Pan
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Jinan, China
- NHC Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, Shandong 250012, China
| |
Collapse
|
11
|
Deininger C, Wagner A, Heimel P, Salzer E, Vila XM, Weißenbacher N, Grillari J, Redl H, Wichlas F, Freude T, Tempfer H, Teuschl-Woller AH, Traweger A. Enhanced BMP-2-Mediated Bone Repair Using an Anisotropic Silk Fibroin Scaffold Coated with Bone-like Apatite. Int J Mol Sci 2021; 23:283. [PMID: 35008718 PMCID: PMC8745248 DOI: 10.3390/ijms23010283] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/20/2021] [Accepted: 12/22/2021] [Indexed: 12/16/2022] Open
Abstract
The repair of large bone defects remains challenging and often requires graft material due to limited availability of autologous bone. In clinical settings, collagen sponges loaded with excessive amounts of bone morphogenetic protein 2 (rhBMP-2) are occasionally used for the treatment of bone non-unions, increasing the risk of adverse events. Therefore, strategies to reduce rhBMP-2 dosage are desirable. Silk scaffolds show great promise due to their favorable biocompatibility and their utility for various biofabrication methods. For this study, we generated silk scaffolds with axially aligned pores, which were subsequently treated with 10× simulated body fluid (SBF) to generate an apatitic calcium phosphate coating. Using a rat femoral critical sized defect model (CSD) we evaluated if the resulting scaffold allows the reduction of BMP-2 dosage to promote efficient bone repair by providing appropriate guidance cues. Highly porous, anisotropic silk scaffolds were produced, demonstrating good cytocompatibility in vitro and treatment with 10× SBF resulted in efficient surface coating. In vivo, the coated silk scaffolds loaded with a low dose of rhBMP-2 demonstrated significantly improved bone regeneration when compared to the unmineralized scaffold. Overall, our findings show that this simple and cost-efficient technique yields scaffolds that enhance rhBMP-2 mediated bone healing.
Collapse
Affiliation(s)
- Christian Deininger
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria; (C.D.); (A.W.); (N.W.); (H.T.)
- Department of Orthopedics and Traumatology, Salzburg University Hospital, Paracelsus Medical University, 5020 Salzburg, Austria; (F.W.); (T.F.)
| | - Andrea Wagner
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria; (C.D.); (A.W.); (N.W.); (H.T.)
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria; (P.H.); (E.S.); (X.M.V.); (J.G.); (H.R.)
| | - Patrick Heimel
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria; (P.H.); (E.S.); (X.M.V.); (J.G.); (H.R.)
- AUVA Research Centre, Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, 1200 Vienna, Austria
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
| | - Elias Salzer
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria; (P.H.); (E.S.); (X.M.V.); (J.G.); (H.R.)
- Department Life Science Engineering, University of Applied Sciences Technikum Wien, 1200 Vienna, Austria
| | - Xavier Monforte Vila
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria; (P.H.); (E.S.); (X.M.V.); (J.G.); (H.R.)
- Department Life Science Engineering, University of Applied Sciences Technikum Wien, 1200 Vienna, Austria
| | - Nadja Weißenbacher
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria; (C.D.); (A.W.); (N.W.); (H.T.)
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria; (P.H.); (E.S.); (X.M.V.); (J.G.); (H.R.)
| | - Johannes Grillari
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria; (P.H.); (E.S.); (X.M.V.); (J.G.); (H.R.)
- AUVA Research Centre, Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, 1200 Vienna, Austria
- Department of Biotechnology, Institute of Molecular Biotechnology, BOKU-University of Natural Resources and Life Sciences, 1180 Vienna, Austria
| | - Heinz Redl
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria; (P.H.); (E.S.); (X.M.V.); (J.G.); (H.R.)
- AUVA Research Centre, Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, 1200 Vienna, Austria
| | - Florian Wichlas
- Department of Orthopedics and Traumatology, Salzburg University Hospital, Paracelsus Medical University, 5020 Salzburg, Austria; (F.W.); (T.F.)
| | - Thomas Freude
- Department of Orthopedics and Traumatology, Salzburg University Hospital, Paracelsus Medical University, 5020 Salzburg, Austria; (F.W.); (T.F.)
| | - Herbert Tempfer
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria; (C.D.); (A.W.); (N.W.); (H.T.)
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria; (P.H.); (E.S.); (X.M.V.); (J.G.); (H.R.)
| | - Andreas Herbert Teuschl-Woller
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria; (P.H.); (E.S.); (X.M.V.); (J.G.); (H.R.)
- Department Life Science Engineering, University of Applied Sciences Technikum Wien, 1200 Vienna, Austria
| | - Andreas Traweger
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria; (C.D.); (A.W.); (N.W.); (H.T.)
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria; (P.H.); (E.S.); (X.M.V.); (J.G.); (H.R.)
| |
Collapse
|
12
|
Martínez MA, Ares I, Martínez M, Lopez-Torres B, Maximiliano JE, Rodríguez JL, Martínez-Larrañaga MR, Anadón A, Peteiro C, Rubiño S, Hortos M. Brown marine algae Gongolaria baccata extract protects Caco-2 cells from oxidative stress induced by tert-butyl hydroperoxide. Food Chem Toxicol 2021; 156:112460. [PMID: 34348126 DOI: 10.1016/j.fct.2021.112460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/29/2021] [Accepted: 07/31/2021] [Indexed: 01/01/2023]
Abstract
Gongolaria baccata (S.G. Gmelin) is marine brown seaweed mainly found on the coasts of the Baltic Sea south to the Mediterranean Sea, Canary Islands, Mauritania and Western Sahara. Herein, we report the cell viability and protective effects attributed to molecular mechanisms underlying antioxidant response to survive oxidative stress injuries. Caco-2 cells were submitted to oxidative stress by treatment with tert-butylhydroperoxide (tert-BOOH). The extract prevented cell damage and enhanced activity of antioxidant defenses (NQO1 and GST activities and GSH levels) reduced by treatment with tert-BOOH. The increases of MDA levels, the amount of intracellular ROS and caspase 3/7 activity induced by tert-BOOH were prevented when cells were treated with the G. baccata extract. Moreover, G. baccata extract caused up-regulation of GSTM2, Nrf2, and AKT1 gene expressions, as well as G. baccata extract reduced significantly Bax, BNIP3, APAF1, ERK1, JNK1, MAPK1, P38, P53, NFκB1, TNFα, IL-6, IL-1β and HO-1 gene expressions related to apoptosis, proinflammation and oxidative stress induced by tert-BOOH. These results suggest that G.baccata extract protected the cells against oxidative damage and inflammation; protective effects that could be linked to their bioactive constituents. Hence, this brown seaweed G.baccata extract could be used for the development of functional foods and/or nutraceuticals.
Collapse
Affiliation(s)
- María-Aránzazu Martínez
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Irma Ares
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain.
| | - Marta Martínez
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain.
| | - Bernardo Lopez-Torres
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Jorge-Enrique Maximiliano
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Jose-Luis Rodríguez
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - María-Rosa Martínez-Larrañaga
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Arturo Anadón
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Cesar Peteiro
- Planta de Algas, Unidad de Cultivos Marinos "El Bocal", Centro Oceanográfico de Santander, Instituto Español de Oceanografía del Consejo Superior de Investigaciones Científicas (IEO, CSIC), 39012, Santander, Spain
| | - Susana Rubiño
- Institut de Recerca i Tecnología Agroalimentaries (IRTA), Centro de Monells, 17121, Monells, Spain
| | - María Hortos
- Institut de Recerca i Tecnología Agroalimentaries (IRTA), Centro de Monells, 17121, Monells, Spain
| |
Collapse
|
13
|
Rutherford TR, Elder AM, Lyons TR. Anoikis resistance in mammary epithelial cells is mediated by semaphorin 7a. Cell Death Dis 2021; 12:872. [PMID: 34561423 PMCID: PMC8463677 DOI: 10.1038/s41419-021-04133-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 08/10/2021] [Accepted: 08/20/2021] [Indexed: 12/11/2022]
Abstract
Semaphorin-7a (SEMA7A), best known as a neuroimmune molecule, plays a diverse role in many cellular processes and pathologies. Here, we show that SEMA7A promotes anoikis resistance in cultured mammary epithelial cells through integrins and activation of pro-survival kinase AKT, which led us to investigate a role for SEMA7A during postpartum mammary gland involution-a normal developmental process where cells die by anoikis. Our results reveal that SEMA7A is expressed on live mammary epithelial cells during involution, that SEMA7A expression is primarily observed in α6-integrin expressing cells, and that luminal progenitor cells, specifically, are decreased in mammary glands of SEMA7A-/- mice during involution. We further identify a SEMA7A-α6/β1-integrin dependent mechanism of mammosphere formation and chemoresistance in mammary epithelial cells and suggest that this mechanism is relevant for recurrence in breast cancer patients.
Collapse
Affiliation(s)
- Taylor R Rutherford
- Division of Medical Oncology, Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Young Women's Breast Cancer Translational Program, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Cell biology, Stem cell, and Development Graduate Training Program, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Alan M Elder
- Division of Medical Oncology, Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Young Women's Breast Cancer Translational Program, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Cancer biology Graduate Training Program, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Traci R Lyons
- Division of Medical Oncology, Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
- Young Women's Breast Cancer Translational Program, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
- Cell biology, Stem cell, and Development Graduate Training Program, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
- Cancer biology Graduate Training Program, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
- University of Colorado Cancer Center, Aurora, CO, USA.
| |
Collapse
|
14
|
Chakraborty R, Vickery K, Darido C, Ranganathan S, Hu H. Bacterial Antigens Reduced the Inhibition Effect of Capsaicin on Cal 27 Oral Cancer Cell Proliferation. Int J Mol Sci 2021; 22:ijms22168686. [PMID: 34445392 PMCID: PMC8395464 DOI: 10.3390/ijms22168686] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 07/27/2021] [Accepted: 08/09/2021] [Indexed: 11/19/2022] Open
Abstract
Oral cancer is a major global health problem with high incidence and low survival rates. The oral cavity contains biofilms as dental plaques that harbour both Gram-negative and Gram-positive bacterial antigens, lipopolysaccharide (LPS) and lipoteichoic acid (LTA), respectively. LPS and LTA are known to stimulate cancer cell growth, and the bioactive phytochemical capsaicin has been reported to reverse this effect. Here, we tested the efficacy of oral cancer chemotherapy treatment with capsaicin in the presence of LPS, LTA or the combination of both antigens. LPS and LTA were administered to Cal 27 oral cancer cells prior to and/or concurrently with capsaicin, and the treatment efficacy was evaluated by measuring cell proliferation and apoptotic cell death. We found that while capsaicin inhibits oral cancer cell proliferation and metabolism (MT Glo assay) and increases cell death (Trypan blue exclusion assay and Caspase 3/7 expression), its anti-cancer effect was significantly reduced on cells that are either primed or exposed to the bacterial antigens. Capsaicin treatment significantly increased oral cancer cells’ suppressor of cytokine signalling 3 gene expression. This increase was reversed in the presence of bacterial antigens during treatment. Our data establish a rationale for clinical consideration of bacterial antigens that may interfere with the treatment efficacy of oral cancer.
Collapse
Affiliation(s)
- Rajdeep Chakraborty
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW 2109, Australia; (R.C.); (K.V.)
- Applied Biosciences, Faculty of Science and Engineering, Macquarie University, Sydney, NSW 2109, Australia;
| | - Karen Vickery
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW 2109, Australia; (R.C.); (K.V.)
| | - Charbel Darido
- Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia;
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC 3000, Australia
| | - Shoba Ranganathan
- Applied Biosciences, Faculty of Science and Engineering, Macquarie University, Sydney, NSW 2109, Australia;
| | - Honghua Hu
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW 2109, Australia; (R.C.); (K.V.)
- Correspondence:
| |
Collapse
|
15
|
Pisani LF, Tontini GE, Gentile C, Marinoni B, Teani I, Nandi N, Creo P, Asti E, Bonavina L, Vecchi M, Pastorelli L. Proinflammatory Interleukin-33 Induces Dichotomic Effects on Cell Proliferation in Normal Gastric Epithelium and Gastric Cancer. Int J Mol Sci 2021; 22:ijms22115792. [PMID: 34071419 PMCID: PMC8197967 DOI: 10.3390/ijms22115792] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 05/08/2021] [Accepted: 05/25/2021] [Indexed: 01/02/2023] Open
Abstract
Interleukin (IL)-33 is a member of the interleukin (IL)-1 family of cytokines linked to the development of inflammatory conditions and cancer in the gastrointestinal tract. This study is designed to investigate whether IL-33 has a direct effect on human gastric epithelial cells (GES-1), the human gastric adenocarcinoma cell line (AGS), and the gastric carcinoma cell line (NCI-N87) by assessing its role in the regulation of cell proliferation, migration, cell cycle, and apoptosis. Cell cycle regulation was also determined in ex vivo gastric cancer samples obtained during endoscopy and surgical procedures. Cell lines and tissue samples underwent stimulation with rhIL-33. Proliferation was assessed by XTT and CFSE assays, migration by wound healing assay, and apoptosis by caspase 3/7 activity assay and annexin V assay. Cell cycle was analyzed by means of propidium iodine assay, and gene expression regulation was assessed by RT-PCR profiling. We found that IL-33 has an antiproliferative and proapoptotic effect on cancer cell lines, and it can stimulate proliferation and reduce apoptosis in normal epithelial cell lines. These effects were also confirmed by the analysis of cell cycle gene expression, which showed a reduced expression of pro-proliferative genes in cancer cells, particularly in genes involved in G0/G1 and G2/M checkpoints. These results were confirmed by gene expression analysis on bioptic and surgical specimens. The aforementioned results indicate that IL-33 may be involved in cell proliferation in an environment- and cell-type-dependent manner.
Collapse
Affiliation(s)
- Laura Francesca Pisani
- Gastroenterology ans Endoscopy Unit, IRCCS Policlinico San Donato, 20097 San Donato Milanese, Italy; (L.F.P.); (P.C.)
| | - Gian Eugenio Tontini
- Department of Biomedical Science for Health, Università degli Studi di Milano, 20133 Milano, Italy; (G.E.T.); (C.G.); (B.M.); (I.T.); (N.N.); (E.A.); (L.B.)
- Gastroenterology and Endoscopy Unit, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy;
| | - Carmine Gentile
- Department of Biomedical Science for Health, Università degli Studi di Milano, 20133 Milano, Italy; (G.E.T.); (C.G.); (B.M.); (I.T.); (N.N.); (E.A.); (L.B.)
| | - Beatrice Marinoni
- Department of Biomedical Science for Health, Università degli Studi di Milano, 20133 Milano, Italy; (G.E.T.); (C.G.); (B.M.); (I.T.); (N.N.); (E.A.); (L.B.)
| | - Isabella Teani
- Department of Biomedical Science for Health, Università degli Studi di Milano, 20133 Milano, Italy; (G.E.T.); (C.G.); (B.M.); (I.T.); (N.N.); (E.A.); (L.B.)
| | - Nicoletta Nandi
- Department of Biomedical Science for Health, Università degli Studi di Milano, 20133 Milano, Italy; (G.E.T.); (C.G.); (B.M.); (I.T.); (N.N.); (E.A.); (L.B.)
| | - Pasquale Creo
- Gastroenterology ans Endoscopy Unit, IRCCS Policlinico San Donato, 20097 San Donato Milanese, Italy; (L.F.P.); (P.C.)
| | - Emanuele Asti
- Department of Biomedical Science for Health, Università degli Studi di Milano, 20133 Milano, Italy; (G.E.T.); (C.G.); (B.M.); (I.T.); (N.N.); (E.A.); (L.B.)
- Division of General Surgery, IRCCS Policlinico San Donato, 20097 San Donato Milanese, Italy
| | - Luigi Bonavina
- Department of Biomedical Science for Health, Università degli Studi di Milano, 20133 Milano, Italy; (G.E.T.); (C.G.); (B.M.); (I.T.); (N.N.); (E.A.); (L.B.)
- Division of General Surgery, IRCCS Policlinico San Donato, 20097 San Donato Milanese, Italy
| | - Maurizio Vecchi
- Gastroenterology and Endoscopy Unit, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy;
- Gastroenterology and Liver Unit, ASST Santi Paolo e Carlo, Ospedale San Paolo, 20100 Milano, Italy
| | - Luca Pastorelli
- Department of Health Sciences, Università degli Studi di Milano, 20133 Milano, Italy
- Department of Pathophysiology and Trasplantation, Università degli Studi di Milano, 20133 Milano, Italy
- Correspondence: ; Tel.: +39-0252774683
| |
Collapse
|
16
|
Lankoff A, Czerwińska M, Walczak R, Karczmarczyk U, Tomczyk K, Brzóska K, Fracasso G, Garnuszek P, Mikołajczak R, Kruszewski M. Design and Evaluation of 223Ra-Labeled and Anti-PSMA Targeted NaA Nanozeolites for Prostate Cancer Therapy-Part II. Toxicity, Pharmacokinetics and Biodistribution. Int J Mol Sci 2021; 22:5702. [PMID: 34071854 PMCID: PMC8198605 DOI: 10.3390/ijms22115702] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 05/24/2021] [Accepted: 05/24/2021] [Indexed: 12/30/2022] Open
Abstract
Metastatic castration-resistant prostate cancer (mCRPC) is a progressive and incurable disease with poor prognosis for patients. Despite introduction of novel therapies, the mortality rate remains high. An attractive alternative for extension of the life of mCRPC patients is PSMA-based targeted radioimmunotherapy. In this paper, we extended our in vitro study of 223Ra-labeled and PSMA-targeted NaA nanozeolites [223RaA-silane-PEG-D2B] by undertaking comprehensive preclinical in vitro and in vivo research. The toxicity of the new compound was evaluated in LNCaP C4-2, DU-145, RWPE-1 and HPrEC prostate cells and in BALB/c mice. The tissue distribution of 133Ba- and 223Ra-labeled conjugates was studied at different time points after injection in BALB/c and LNCaP C4-2 tumor-bearing BALB/c Nude mice. No obvious symptoms of antibody-free and antibody-functionalized nanocarriers cytotoxicity and immunotoxicity was found, while exposure to 223Ra-labeled conjugates resulted in bone marrow fibrosis, decreased the number of WBC and platelets and elevated serum concentrations of ALT and AST enzymes. Biodistribution studies revealed high accumulation of 223Ra-labeled conjugates in the liver, lungs, spleen and bone tissue. Nontargeted and PSMA-targeted radioconjugates exhibited a similar, marginal uptake in tumour lesions. In conclusion, despite the fact that NaA nanozeolites are safe carriers, the intravenous administration of NaA nanozeolite-based radioconjugates is dubious due to its high accumulation in the lungs, liver, spleen and bones.
Collapse
Affiliation(s)
- Anna Lankoff
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland; (M.C.); (K.B.); (M.K.)
- Department of Medical Biology, Institute of Biology, Jan Kochanowski University, Uniwersytecka 7, 24-406 Kielce, Poland
| | - Malwina Czerwińska
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland; (M.C.); (K.B.); (M.K.)
| | - Rafał Walczak
- Centre of Radiochemistry and Nuclear Chemistry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland;
| | - Urszula Karczmarczyk
- National Centre for Nuclear Research, Radioisotope Centre POLATOM, Sołtana 7, 05-400 Otwock, Poland; (U.K.); (K.T.); (P.G.); (R.M.)
| | - Kamil Tomczyk
- National Centre for Nuclear Research, Radioisotope Centre POLATOM, Sołtana 7, 05-400 Otwock, Poland; (U.K.); (K.T.); (P.G.); (R.M.)
| | - Kamil Brzóska
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland; (M.C.); (K.B.); (M.K.)
| | - Giulio Fracasso
- Department of Medicine, University of Verona, 37129 Verona, Italy;
| | - Piotr Garnuszek
- National Centre for Nuclear Research, Radioisotope Centre POLATOM, Sołtana 7, 05-400 Otwock, Poland; (U.K.); (K.T.); (P.G.); (R.M.)
| | - Renata Mikołajczak
- National Centre for Nuclear Research, Radioisotope Centre POLATOM, Sołtana 7, 05-400 Otwock, Poland; (U.K.); (K.T.); (P.G.); (R.M.)
| | - Marcin Kruszewski
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland; (M.C.); (K.B.); (M.K.)
- Department of Molecular Biology and Translational Research, Institute of Rural Health, Jaczewskiego 2, 20-090 Lublin, Poland
| |
Collapse
|
17
|
Natarajan SK, Bruett T, Muthuraj PG, Sahoo PK, Power J, Mott JL, Hanson C, Anderson-Berry A. Saturated free fatty acids induce placental trophoblast lipoapoptosis. PLoS One 2021; 16:e0249907. [PMID: 33886600 PMCID: PMC8062006 DOI: 10.1371/journal.pone.0249907] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 03/26/2021] [Indexed: 12/21/2022] Open
Abstract
INTRODUCTION Obesity during pregnancy increases the risk for maternal complications like gestational diabetes, preeclampsia, and maternal inflammation. Maternal obesity also increases the risk of childhood obesity, intrauterine growth restriction (IUGR) and diabetes to the offspring. Increased circulating free fatty acids (FFAs) in obesity due to adipose tissue lipolysis induces lipoapoptosis to hepatocytes, cholangiocytes, and pancreatic-β-cells. During the third trimester of human pregnancy, there is an increase in maternal lipolysis and release of FFAs into the circulation. It is currently unknown if increased FFAs during gestation as a result of maternal obesity cause placental cell lipoapoptosis. Increased exposure of FFAs during maternal obesity has been shown to result in placental lipotoxicity. The objective of the present study is to determine saturated FFA-induced trophoblast lipoapoptosis and also to test the protective role of monounsaturated fatty acids against FFA-induced trophoblast lipoapoptosis using in vitro cell culture model. Here, we hypothesize that saturated FFAs induce placental trophoblast lipoapoptosis, which was prevented by monounsaturated fatty acids. METHODS Biochemical and structural markers of apoptosis by characteristic nuclear morphological changes with DAPI staining, and caspase 3/7 activity was assessed. Cleaved PARP and cleaved caspase 3 were examined by western blot analysis. RESULTS Treatment of trophoblast cell lines, JEG-3 and JAR cells with palmitate (PA) or stearate (SA) induces trophoblast lipoapoptosis as evidenced by a significant increase in apoptotic nuclear morphological changes and caspase 3/7 activity. We observed that saturated FFAs caused a concentration-dependent increase in placental trophoblast lipoapoptosis. We also observed that monounsaturated fatty acids like palmitoleate and oleate mitigates placental trophoblast lipoapoptosis caused due to PA exposure. CONCLUSION We show that saturated FFAs induce trophoblast lipoapoptosis. Co-treatment of monounsaturated fatty acids like palmitoleate and oleate protects against FFA-induced trophoblast lipoapoptosis.
Collapse
Affiliation(s)
- Sathish Kumar Natarajan
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States of America
- * E-mail:
| | - Taylor Bruett
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States of America
| | - Philma Glora Muthuraj
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States of America
| | - Prakash K. Sahoo
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States of America
| | - Jillian Power
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States of America
| | - Justin L. Mott
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Corrine Hanson
- College of Allied Health Professions Medical Nutrition Education, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Ann Anderson-Berry
- Department of Pediatrics, University of Nebraska Medical Center, Omaha, NE, United States of America
| |
Collapse
|
18
|
Gliszczyńska A, Dancewicz K, Gabryś B, Świtalska M, Wietrzyk J, Maciejewska G. Synthesis of novel phytol-derived γ-butyrolactones and evaluation of their biological activity. Sci Rep 2021; 11:4262. [PMID: 33608591 PMCID: PMC7896091 DOI: 10.1038/s41598-021-83736-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 02/08/2021] [Indexed: 11/13/2022] Open
Abstract
The synthesis of phytol-derived γ-butyrolactones as well as their evaluation for deterrent activity towards peach-potato aphid Myzus persicae and antiproliferative activity against four selected cancer cell lines are reported. Products were obtained in good yields (19-96%) and their structures were fully characterized by spectroscopic data (NMR, HRMS). Four synthesized δ-halo-γ-lactones (4-7) are new and have not been previously described in the literature. In the choice test phytol (1) appeared deterrent to M. persicae, whereas modifications of its structure did not cause the avoidance of the treated leaves by the aphids. In contrast, aphids were attracted to the leaves treated with the new trans-δ-chloro-γ-lactone (6). Electrical Penetration Graph (EPG) technique applied to explore the aphid probing and feeding activity revealed that neither phytol nor lactone 6 affected aphid probing and the consumption of phloem sap, which means that both phytol and the lactone 6 might have acted as postingestive modifiers of aphid behavior. The results of in vitro antitumor assays showed that obtained phytol derivatives exhibit cytotoxic activity against studied cancer cell lines (leukemia, lung and colon carcinoma and its doxorubicin resistant subline). Halolactones 4-6 were identified as the compounds, which arrest cell cycle of leukemia cells mainly in G2/M and S phases.
Collapse
Affiliation(s)
- Anna Gliszczyńska
- Department of Chemistry, Wroclaw University of Environmental and Life Sciences, Norwida 25, 50-375, Wrocław, Poland.
| | - Katarzyna Dancewicz
- Department of Botany and Ecology, University of Zielona Góra, Szafrana 1, 65-516, Zielona Góra, Poland
| | - Beata Gabryś
- Department of Botany and Ecology, University of Zielona Góra, Szafrana 1, 65-516, Zielona Góra, Poland
| | - Marta Świtalska
- Department of Experimental Oncology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Science, Weigla 12, 53-114, Wrocław, Poland
| | - Joanna Wietrzyk
- Department of Experimental Oncology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Science, Weigla 12, 53-114, Wrocław, Poland
| | - Gabriela Maciejewska
- Central Laboratory of Instrumental Analysis, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370, Wrocław, Poland
| |
Collapse
|
19
|
Özdemir A, İbişoğlu B, Şimay Demir YD, Benhür E, Valipour F, Ark M. A novel proteolytic cleavage of ROCK 1 in cell death: Not only by caspases 3 and 7 but also by caspase 2. Biochem Biophys Res Commun 2021; 547:118-124. [PMID: 33610039 DOI: 10.1016/j.bbrc.2021.02.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 02/05/2021] [Indexed: 01/05/2023]
Abstract
During apoptosis, myosin light chain phosphorylation induced by ROCK 1, activated by caspase 3-mediated cleavage, results in the formation of membrane blebs. Additionally, actin-myosin-based contraction induced by the activation of ROCK is involved in the apoptotic nuclear disintegration. In previous studies, it was reported that ROCK 1 was only cleaved by caspase 3 in cell death and caspase 7 was involved in truncation of ROCK 1 in in-vitro cell-free conditions. Here we reported that caspase 2 is involved in the truncation of ROCK 1 directly as well as caspase 3 and caspase 7. Utilizing caspase 3-deficient MCF-7, MDA-MB-231 and HeLa cells, we demonstrated that caspase 2 produced an active fragment of approximately 130 kDa of ROCK 1 in cell death. The cleaved active fragment of ROCK 1 is also responsible for the formation of membrane blebbing in cell death. Interestingly, caspase 2-mediated cleavage of ROCK 1 might occur in the region where caspase 3 truncates ROCK 1. Moreover, the presence of an active cleaved form of ROCK 1 in the nuclei implies that this fragment might play a role in the disruption of nuclear integrity. Taken together, it was determined that caspase 2 has a role in the truncation of ROCK 1 in cell death, and a new activation mechanism has been defined for ROCK 1.
Collapse
Affiliation(s)
- Aysun Özdemir
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, 06330, Ankara, Turkey
| | - Burçin İbişoğlu
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, 06330, Ankara, Turkey
| | | | - Elifnur Benhür
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, 06330, Ankara, Turkey
| | - Farzaneh Valipour
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, 06330, Ankara, Turkey
| | - Mustafa Ark
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, 06330, Ankara, Turkey.
| |
Collapse
|
20
|
Liang R, Chen W, Chen XY, Fan HN, Zhang J, Zhu JS. Dihydroartemisinin inhibits the tumorigenesis and invasion of gastric cancer by regulating STAT1/KDR/MMP9 and P53/BCL2L1/CASP3/7 pathways. Pathol Res Pract 2021; 218:153318. [PMID: 33370709 DOI: 10.1016/j.prp.2020.153318] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/28/2020] [Accepted: 12/08/2020] [Indexed: 12/20/2022]
Abstract
Dihydroartemisinin (DHA), an effective antimalarial drug, has been widely investigated as an anti-tumor agent. Although previous studies have indicated the potential therapeutic effects of DHA on multiple malignancies, its detailed molecular mechanisms in gastric cancer (GC) are still undocumented. In the present study, we applied network pharmacology and bioinformatics (gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses) to obtain the collective targets of DHA and GC and analyzed their involvement in constructing a protein-protein interaction (PPI) network. The top 10% hub targets in this network were identified, and TCGA database was utilized for the single gene analysis of their correlation with the prognosis of GC. CCK8, EdU, Transwell, and flow cytometry analyses were conducted, and subcutaneous xenograft tumor models were constructed to assess the effects of DHA on the tumorigenesis and invasion of GC. Furthermore, the targets of DHA were verified by molecular docking, quantitative real-time PCR (qPCR) and western blot analyses in GC cells. The results indicated that the common targets of DHA and GC were enriched in multiple cancer-related pathways including KDR, STAT1 and apoptosis signaling pathways, where the core genes included KDR, MMP9, STAT1, TP53, CASP3/7 and BCL2L1. The lowered expression of KDR and increased expression of TP53 and CASP7 harbored a favorable survival for patients with GC patients. CASP7 showed a positive correlation with CASP3 but a negative correlation with KDR and could be regarded as an independent protective factor for overall survival in GC. Moreover, DHA treatment induced cell apoptosis and suppressed the cell proliferation, DNA synthesis, cycle progression and invasive capabilities both in vitro and in vivo. DHA also upregulated p53, CASP3, and cleaved-CASP3 and downregulated BCL2L1, MMP9, KDR, p-KDR, STAT1 and p-STAT1 in GC cell lines. In conclusion, DHA could suppress the tumorigenesis and invasion of GC by regulating STAT1/KDR/MMP9 and p53/BCL2L1/CASP3/7 pathways. Our findings might provide a novel approach for the treatment of GC.
Collapse
Affiliation(s)
- Rui Liang
- Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Wei Chen
- Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Xiao-Yu Chen
- Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Hui-Ning Fan
- Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jing Zhang
- Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
| | - Jin-Shui Zhu
- Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
| |
Collapse
|
21
|
Cordier W, Yousaf M, Nell MJ, Steenkamp V. Underlying mechanisms of cytotoxicity in HepG2 hepatocarcinoma cells exposed to arsenic, cadmium and mercury individually and in combination. Toxicol In Vitro 2021; 72:105101. [PMID: 33497711 DOI: 10.1016/j.tiv.2021.105101] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 12/16/2020] [Accepted: 01/20/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Toxicity data regarding combinational exposure of humans to arsenic, cadmium and mercury is scarce. Although hepatotoxicity has been reported, limited information is available on their mechanistic underpinnings. The cytotoxic mechanisms of these metals were determined in HepG2 hepatocarcinoma cell lines after individual and combinational exposure. METHODS HepG2 cells were exposed to heavy metals (sodium arsenite, cadmium chloride, and mercury chloride) individually or in combination for 24 h, after which cell density, mitochondrial membrane potential (ΔΨm), reactive oxygen species (ROS), reduced glutathione (GSH), adenosine triphosphate (ATP) and caspase-3/7 activity was assessed. RESULTS AND DISCUSSION Cadmium (IC50 = 0.43 mg/L) and the combination (0.45 mg/L, arsenic reference) were most cytotoxic, followed by arsenic (6.71 mg/L) and mercury (28.23 mg/L). Depolarisation of the ΔΨm and reductions in ROS, GSH and ATP levels occurred. Arsenic, cadmium and the combination increased caspase-3/7 activity, while mercury reduced it. CONCLUSION The combination produced a greater, albeit mechanistically similar, cytotoxicity compared to individual metals. Cytotoxicity was dependent on altered mitochondrial integrity, redox-status, and bioenergetics. Although the combination's cytotoxicity was associated with caspase-3/7 activity, this was not true for mercury. Heavy metal interactions should be assessed to elucidate molecular underpinnings of cytotoxicity.
Collapse
Affiliation(s)
- W Cordier
- Department of Pharmacology, School of Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.
| | - M Yousaf
- Department of Pharmacology, School of Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - M J Nell
- Department of Pharmacology, School of Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - V Steenkamp
- Department of Pharmacology, School of Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| |
Collapse
|
22
|
Gonzalez G, Grúz J, D’Acunto CW, Kaňovský P, Strnad M. Cytokinin Plant Hormones Have Neuroprotective Activity in In Vitro Models of Parkinson's Disease. Molecules 2021; 26:E361. [PMID: 33445611 PMCID: PMC7827283 DOI: 10.3390/molecules26020361] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/05/2021] [Accepted: 01/10/2021] [Indexed: 01/03/2023] Open
Abstract
Cytokinins are adenine-based phytohormones that regulate key processes in plants, such as cell division and differentiation, root and shoot growth, apical dominance, branching, and seed germination. In preliminary studies, they have also shown protective activities against human neurodegenerative diseases. To extend knowledge of the protection (protective activity) they offer, we investigated activities of natural cytokinins against salsolinol (SAL)-induced toxicity (a Parkinson's disease model) and glutamate (Glu)-induced death of neuron-like dopaminergic SH-SY5Y cells. We found that kinetin-3-glucoside, cis-zeatin riboside, and N6-isopentenyladenosine were active in the SAL-induced PD model. In addition, trans-, cis-zeatin, and kinetin along with the iron chelator deferoxamine (DFO) and the necroptosis inhibitor necrostatin 1 (NEC-1) significantly reduced cell death rates in the Glu-induced model. Lactate dehydrogenase assays revealed that the cytokinins provided lower neuroprotective activity than DFO and NEC-1. Moreover, they reduced apoptotic caspase-3/7 activities less strongly than DFO. However, the cytokinins had very similar effects to DFO and NEC-1 on superoxide radical production. Overall, they showed protective activity in the SAL-induced model of parkinsonian neuronal cell death and Glu-induced model of oxidative damage mainly by reduction of oxidative stress.
Collapse
Affiliation(s)
- Gabriel Gonzalez
- Laboratory of Growth Regulators, Institute of Experimental Botany of the Czech Academy of Sciences, and Faculty of Science, Palacký University, Šlechtitelů 27, CZ-78371 Olomouc, Czech Republic; (G.G.); (J.G.); (C.W.D.)
- Department of Neurology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University Olomouc, CZ-775 20 Olomouc, Czech Republic;
| | - Jiří Grúz
- Laboratory of Growth Regulators, Institute of Experimental Botany of the Czech Academy of Sciences, and Faculty of Science, Palacký University, Šlechtitelů 27, CZ-78371 Olomouc, Czech Republic; (G.G.); (J.G.); (C.W.D.)
| | - Cosimo Walter D’Acunto
- Laboratory of Growth Regulators, Institute of Experimental Botany of the Czech Academy of Sciences, and Faculty of Science, Palacký University, Šlechtitelů 27, CZ-78371 Olomouc, Czech Republic; (G.G.); (J.G.); (C.W.D.)
| | - Petr Kaňovský
- Department of Neurology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University Olomouc, CZ-775 20 Olomouc, Czech Republic;
| | - Miroslav Strnad
- Laboratory of Growth Regulators, Institute of Experimental Botany of the Czech Academy of Sciences, and Faculty of Science, Palacký University, Šlechtitelů 27, CZ-78371 Olomouc, Czech Republic; (G.G.); (J.G.); (C.W.D.)
- Department of Neurology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacký University Olomouc, CZ-775 20 Olomouc, Czech Republic;
| |
Collapse
|
23
|
Gupta S, Kamil S, Sinha PR, Rodier JT, Chaurasia SS, Mohan RR. Glutathione is a potential therapeutic target for acrolein toxicity in the cornea. Toxicol Lett 2021; 340:33-42. [PMID: 33421550 DOI: 10.1016/j.toxlet.2021.01.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/27/2020] [Accepted: 01/04/2021] [Indexed: 11/19/2022]
Abstract
Toxic and volatile chemicals are widely used in household products and previously used as warfare agents, causing a public health threat worldwide. This study aimed to evaluate the extent of injury and mechanisms of acrolein toxicity in the cornea. Primary human corneal stromal fibroblasts cultures (hCSFs) from human donor cornea were cultured and exposed to acrolein toxicity with -/+ N-acetylcysteine (NAC) to study the mode of action in the presence of Buthionine sulphoximine (BSO). PrestoBlue and MTT assays were used to optimize acrolein, NAC, and BSO doses for hCSFs. Cell-based assays and qRT-PCR analyses were performed to understand the acrolein toxicity and mechanisms. Acrolein exposure leads to an increased reactive oxygen species (ROS), compromised glutathione (GSH) levels, and mitochondrial dysfunction. The TUNEL and caspase assays showed that acrolein caused cell death in hCSFs. These deleterious effects can be mitigated using NAC in hCSFs, suggesting that GSH can be a potential target for acrolein toxicity in the cornea.
Collapse
Affiliation(s)
- Suneel Gupta
- Harry S. Truman Memorial Veterans' Hospital, Columbia, MO, United States; One-Health Vision Research Program, Department of Veterinary Medicine & Surgery and Biomedical Sciences, College of Veterinary Medicine, University of Missouri, Columbia, MO, United States
| | - Sabeeh Kamil
- Harry S. Truman Memorial Veterans' Hospital, Columbia, MO, United States; One-Health Vision Research Program, Department of Veterinary Medicine & Surgery and Biomedical Sciences, College of Veterinary Medicine, University of Missouri, Columbia, MO, United States
| | - Prashant R Sinha
- Harry S. Truman Memorial Veterans' Hospital, Columbia, MO, United States; One-Health Vision Research Program, Department of Veterinary Medicine & Surgery and Biomedical Sciences, College of Veterinary Medicine, University of Missouri, Columbia, MO, United States
| | - Jason T Rodier
- Harry S. Truman Memorial Veterans' Hospital, Columbia, MO, United States; Mason Eye Institute, School of Medicine, University of Missouri, Columbia, MO, United States
| | - Shyam S Chaurasia
- Harry S. Truman Memorial Veterans' Hospital, Columbia, MO, United States; One-Health Vision Research Program, Department of Veterinary Medicine & Surgery and Biomedical Sciences, College of Veterinary Medicine, University of Missouri, Columbia, MO, United States
| | - Rajiv R Mohan
- Harry S. Truman Memorial Veterans' Hospital, Columbia, MO, United States; One-Health Vision Research Program, Department of Veterinary Medicine & Surgery and Biomedical Sciences, College of Veterinary Medicine, University of Missouri, Columbia, MO, United States; Mason Eye Institute, School of Medicine, University of Missouri, Columbia, MO, United States.
| |
Collapse
|
24
|
Mashimo M, Onishi M, Uno A, Tanimichi A, Nobeyama A, Mori M, Yamada S, Negi S, Bu X, Kato J, Moss J, Sanada N, Kizu R, Fujii T. The 89-kDa PARP1 cleavage fragment serves as a cytoplasmic PAR carrier to induce AIF-mediated apoptosis. J Biol Chem 2021; 296:100046. [PMID: 33168626 PMCID: PMC7948984 DOI: 10.1074/jbc.ra120.014479] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 11/02/2020] [Accepted: 11/09/2020] [Indexed: 01/17/2023] Open
Abstract
Poly(ADP-ribose) polymerase 1 (PARP1) is a nuclear protein that is activated by binding to DNA lesions and catalyzes poly(ADP-ribosyl)ation of nuclear acceptor proteins, including PARP1 itself, to recruit DNA repair machinery to DNA lesions. When excessive DNA damage occurs, poly(ADP-ribose) (PAR) produced by PARP1 is translocated to the cytoplasm, changing the activity and localization of cytoplasmic proteins, e.g., apoptosis-inducing factor (AIF), hexokinase, and resulting in cell death. This cascade, termed parthanatos, is a caspase-independent programmed cell death distinct from necrosis and apoptosis. In contrast, PARP1 is a substrate of activated caspases 3 and 7 in caspase-dependent apoptosis. Once cleaved, PARP1 loses its activity, thereby suppressing DNA repair. Caspase cleavage of PARP1 occurs within a nuclear localization signal near the DNA-binding domain, resulting in the formation of 24-kDa and 89-kDa fragments. In the present study, we found that caspase activation by staurosporine- and actinomycin D-induced PARP1 autopoly(ADP-ribosyl)ation and fragmentation, generating poly(ADP-ribosyl)ated 89-kDa and 24-kDa PARP1 fragments. The 89-kDa PARP1 fragments with covalently attached PAR polymers were translocated to the cytoplasm, whereas 24-kDa fragments remained associated with DNA lesions. In the cytoplasm, AIF binding to PAR attached to the 89-kDa PARP1 fragment facilitated its translocation to the nucleus. Thus, the 89-kDa PARP1 fragment is a PAR carrier to the cytoplasm, inducing AIF release from mitochondria. Elucidation of the caspase-mediated interaction between apoptosis and parthanatos pathways extend the current knowledge on mechanisms underlying programmed cell death and may lead to new therapeutic targets.
Collapse
Affiliation(s)
- Masato Mashimo
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyotanabe, Kyoto, Japan.
| | - Mayu Onishi
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyotanabe, Kyoto, Japan
| | - Arina Uno
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyotanabe, Kyoto, Japan
| | - Akari Tanimichi
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyotanabe, Kyoto, Japan
| | - Akari Nobeyama
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyotanabe, Kyoto, Japan
| | - Mana Mori
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyotanabe, Kyoto, Japan
| | - Sayaka Yamada
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyotanabe, Kyoto, Japan
| | - Shigeru Negi
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyotanabe, Kyoto, Japan
| | - Xiangning Bu
- Pulmonary Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Jiro Kato
- Pulmonary Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Joel Moss
- Pulmonary Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Noriko Sanada
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyotanabe, Kyoto, Japan
| | - Ryoichi Kizu
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyotanabe, Kyoto, Japan
| | - Takeshi Fujii
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyotanabe, Kyoto, Japan
| |
Collapse
|
25
|
Vermehren MF, Wiesmann N, Deschner J, Brieger J, Al-Nawas B, Kämmerer PW. Comparative analysis of the impact of e-cigarette vapor and cigarette smoke on human gingival fibroblasts. Toxicol In Vitro 2020; 69:105005. [PMID: 32956835 DOI: 10.1016/j.tiv.2020.105005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/01/2020] [Accepted: 09/16/2020] [Indexed: 11/21/2022]
Abstract
Human gingival fibroblasts (HGF) play a vital role in wound healing, oral cancer, and are among the first cells being exposed to e-cigarette vapor (eCV) or cigarette smoke (CS) during inhalation. Although the cell-damaging effect of CS has been well studied, the effects of eCV on gingival cells are still unclear. The aim of this in vitro study was to compare the effects of eCV and CS on HGF in terms of proliferation, metabolic activity, cell death, and formation of reactive oxygen species (ROS). After 24 h cell numbers in CS-exposed cells in contrast to eCV-exposed cells were significantly decreased compared to the control. At later points in time, such differences could no longer be observed. Compared to the control, HGF stimulated with eCV showed a significantly higher metabolic activity 1 h, 24 h, and 48 h after exposure. 24 h after exposure, the metabolic activity was increased in both test groups. No caspase 3/7 activation nor significant differences in the amount of apoptosis/necrosis among the groups were seen. Only in CS-exposed cells ROS formation was increased at 1 h, 3 h, and 6 h after exposition. In conclusion, when compared to conventional CS, a less harmful effect of eCV on HGF can be assumed.
Collapse
Affiliation(s)
- M F Vermehren
- Department of Oral and Maxillofacial Surgery, Plastic Surgery, University Medical Centre Mainz, Augustusplatz 2, 55131 Mainz, Germany
| | - N Wiesmann
- Department of Oral and Maxillofacial Surgery, Plastic Surgery, University Medical Centre Mainz, Augustusplatz 2, 55131 Mainz, Germany; Department of Otorhinolaryngology, University Medical Centre Mainz, Langenbeckstr. 1, 55131 Mainz, Germany.
| | - J Deschner
- Department of Periodontology and Operative Dentistry, University Medical Centre Mainz, Augustusplatz 2, 55131 Mainz, Germany
| | - J Brieger
- Department of Otorhinolaryngology, University Medical Centre Mainz, Langenbeckstr. 1, 55131 Mainz, Germany
| | - B Al-Nawas
- Department of Oral and Maxillofacial Surgery, Plastic Surgery, University Medical Centre Mainz, Augustusplatz 2, 55131 Mainz, Germany
| | - P W Kämmerer
- Department of Oral and Maxillofacial Surgery, Plastic Surgery, University Medical Centre Mainz, Augustusplatz 2, 55131 Mainz, Germany
| |
Collapse
|
26
|
Ibrakaw AS, Omoruyi SI, Ekpo OE, Hussein AA. Neuroprotective Activities of Boophone haemanthoides (Amaryllidaceae) Extract and Its Chemical Constituents. Molecules 2020; 25:molecules25225376. [PMID: 33212961 PMCID: PMC7698425 DOI: 10.3390/molecules25225376] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/12/2020] [Accepted: 11/12/2020] [Indexed: 12/23/2022] Open
Abstract
Parkinson’s disease (PD) is a neurodegenerative condition that progresses as age increases, and some of its major symptoms include tremor and postural and movement-related difficulties. To date, the treatment of PD remains a challenge because available drugs only treat the symptoms of the disease or possess serious side effects. In light of this, new treatment options are needed; hence, this study investigates the neuroprotective effects of an organic Boophone haemanthoides extract (BHE) and its bioactive compounds using an in vitro model of PD involving the toxin 1-methyl-4-phenylpyridinium (MPP+) and SH-SY5Y neuroblastoma cells. A total of seven compounds were isolated from BHE, viz distichamine (1), 1α,3α-diacetylnerbowdine (2), hippadine (3), stigmast-4-ene-3,6-dione (4), cholest-4-en-3-one (5), tyrosol (6), and 3-hydroxy-1-(4′-hydroxyphenyl)-1-propanone (7). Six compounds (1, 2, 4, 5, 6 and 7) were investigated, and five showed neuroprotection alongside the BHE. This study gives insight into the bioactivity of the non-alkaloidal constituents of Amaryllidaceae, since the isolated compounds and the BHE showed improved cell viability, increased ATP generation in the cells as well as inhibition of MPP+-induced apoptosis. Together, these findings support the claim that the Amaryllidaceae plant family could be a potential reserve of bioactive compounds for the discovery of neuroprotective agents.
Collapse
Affiliation(s)
- Abobaker S. Ibrakaw
- Department of Biodiversity and Conservation Biology, University of the Western Cape, Cape Town, Robert Sobukwe Road, Bellville 7535, South Africa;
| | - Sylvester I. Omoruyi
- Department of Chemistry, Cape Peninsula University of Technology, Symphony Road, Bellville 7535, South Africa;
| | - Okobi E. Ekpo
- Department of Medical Biosciences, University of the Western Cape, Cape Town, Robert Sobukwe Road, Bellville 7535, South Africa;
| | - Ahmed A. Hussein
- Department of Chemistry, Cape Peninsula University of Technology, Symphony Road, Bellville 7535, South Africa;
- Correspondence: ; Tel.: +27-21-959-6193; Fax: +27-21-959-3055
| |
Collapse
|
27
|
Kuryłowicz K, Cierniak A, Madej E, Skalniak Ł, Wolnicka-Głubisz A. Resveratrol enhances apoptosis induced by the heterocyclic aromatic amines in p53-wt LoVo cells, but not in p53-deficient HaCaT cells. Acta Biochim Pol 2020; 67:605-611. [PMID: 33108147 DOI: 10.18388/abp.2020_5477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 09/25/2020] [Indexed: 11/10/2022]
Abstract
In the present study, we investigated the influence of resveratrol on PhIP treated human colon cancer cells and compared the effect to HaCaT cells considered as normal, human keratinocytes. Our results show that resveratrol decreases DNA damage in both cell types, it increases the sensitivity of LoVo cells to apoptosis and has no effect on PhIP-treated HaCaT cells. We confirm that PhIP-induced apoptosis is p53 and caspase 3/7 dependent. Interestingly, normal cells such as HaCaT, which lack functional p53 are more resistant to PhIP treatment.
Collapse
Affiliation(s)
- Katarzyna Kuryłowicz
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Agnieszka Cierniak
- Department of Medicine and Health Sciences, Andrzej Frycz Modrzewski Krakow, University, Kraków, Poland
| | - Ewelina Madej
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Łukasz Skalniak
- Faculty of Chemistry, Jagiellonian University, Kraków, Poland
| | - Agnieszka Wolnicka-Głubisz
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| |
Collapse
|
28
|
Abstract
Pannexin 1 (PANX1) is an ATP-permeable channel with critical roles in a variety of physiological functions such as blood pressure regulation1, apoptotic cell clearance2 and human oocyte development3. Here we present several structures of human PANX1 in a heptameric assembly at resolutions of up to 2.8 angström, including an apo state, a caspase-7-cleaved state and a carbenoxolone-bound state. We reveal a gating mechanism that involves two ion-conducting pathways. Under normal cellular conditions, the intracellular entry of the wide main pore is physically plugged by the C-terminal tail. Small anions are conducted through narrow tunnels in the intracellular domain. These tunnels connect to the main pore and are gated by a long linker between the N-terminal helix and the first transmembrane helix. During apoptosis, the C-terminal tail is cleaved by caspase, allowing the release of ATP through the main pore. We identified a carbenoxolone-binding site embraced by W74 in the extracellular entrance and a role for carbenoxolone as a channel blocker. We identified a gap-junction-like structure using a glycosylation-deficient mutant, N255A. Our studies provide a solid foundation for understanding the molecular mechanisms underlying the channel gating and inhibition of PANX1 and related large-pore channels.
Collapse
Affiliation(s)
- Zheng Ruan
- Van Andel Institute, Grand Rapids, MI, USA
| | | | - Juan Du
- Van Andel Institute, Grand Rapids, MI, USA.
| | - Wei Lü
- Van Andel Institute, Grand Rapids, MI, USA.
| |
Collapse
|
29
|
Maj P, Mori M, Sobich J, Markowicz J, Uram Ł, Zieliński Z, Quaglio D, Calcaterra A, Cau Y, Botta B, Rode W. Alvaxanthone, a Thymidylate Synthase Inhibitor with Nematocidal and Tumoricidal Activities. Molecules 2020; 25:molecules25122894. [PMID: 32586022 PMCID: PMC7356228 DOI: 10.3390/molecules25122894] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 06/15/2020] [Accepted: 06/19/2020] [Indexed: 11/16/2022] Open
Abstract
With the aim to identify novel inhibitors of parasitic nematode thymidylate synthase (TS), we screened in silico an in-house library of natural compounds, taking advantage of a model of nematode TS three-dimensional (3D) structure and choosing candidate compounds potentially capable of enzyme binding/inhibition. Selected compounds were tested as (i) inhibitors of the reaction catalyzed by TSs of different species, (ii) agents toxic to a nematode parasite model (C. elegans grown in vitro), (iii) inhibitors of normal human cell growth, and (iv) antitumor agents affecting human tumor cells grown in vitro. The results pointed to alvaxanthone as a relatively strong TS inhibitor that causes C. elegans population growth reduction with nematocidal potency similar to the anthelmintic drug mebendazole. Alvaxanthone also demonstrated an antiproliferative effect in tumor cells, associated with a selective toxicity against mitochondria observed in cancer cells compared to normal cells.
Collapse
Affiliation(s)
- Piotr Maj
- Nencki Institute of Experimental Biology, 3 Pasteur Street, 02-093 Warsaw, Poland; (P.M.); (J.S.); (Z.Z.)
- Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, UK
| | - Mattia Mori
- Department of Biotechnology, Chemistry and Pharmacy, Department of Excellence 2018-2022, via Aldo Moro 2, 53100 Siena, Italy; (M.M.); (Y.C.)
| | - Justyna Sobich
- Nencki Institute of Experimental Biology, 3 Pasteur Street, 02-093 Warsaw, Poland; (P.M.); (J.S.); (Z.Z.)
| | - Joanna Markowicz
- Faculty of Chemistry, Rzeszów University of Technology, 6 Powstańców Warszawy Ave, 35-959 Rzeszów, Poland; (J.M.); (Ł.U.)
| | - Łukasz Uram
- Faculty of Chemistry, Rzeszów University of Technology, 6 Powstańców Warszawy Ave, 35-959 Rzeszów, Poland; (J.M.); (Ł.U.)
| | - Zbigniew Zieliński
- Nencki Institute of Experimental Biology, 3 Pasteur Street, 02-093 Warsaw, Poland; (P.M.); (J.S.); (Z.Z.)
| | - Deborah Quaglio
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (D.Q.); (A.C.); (B.B.)
| | - Andrea Calcaterra
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (D.Q.); (A.C.); (B.B.)
| | - Ylenia Cau
- Department of Biotechnology, Chemistry and Pharmacy, Department of Excellence 2018-2022, via Aldo Moro 2, 53100 Siena, Italy; (M.M.); (Y.C.)
| | - Bruno Botta
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (D.Q.); (A.C.); (B.B.)
| | - Wojciech Rode
- Nencki Institute of Experimental Biology, 3 Pasteur Street, 02-093 Warsaw, Poland; (P.M.); (J.S.); (Z.Z.)
- Correspondence: ; Tel.: +48-608-351-155; Fax: +48-22-822-5342
| |
Collapse
|
30
|
Liao YJ, Hsu SM, Chien CY, Wang YH, Hsu MH, Suk FM. Treatment with a New Barbituric Acid Derivative Exerts Antiproliferative and Antimigratory Effects against Sorafenib Resistance in Hepatocellular Carcinoma. Molecules 2020; 25:molecules25122856. [PMID: 32575795 PMCID: PMC7355767 DOI: 10.3390/molecules25122856] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/12/2020] [Accepted: 06/18/2020] [Indexed: 12/15/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a common cause of cancer death worldwide. Sorafenib, a multikinase inhibitor, is the first-line drug approved by the Food and Drug Administration (FDA) for the treatment of patients with advanced HCC. However, most patients who continuously receive sorafenib may acquire resistance to this drug. Therefore, it is important to develop a new compound to treat liver cancer and sorafenib-resistant liver cancer. Barbituric acid derivatives have been used as antiasthmatic drugs in the clinic. We previously reported that a novel barbituric acid derivative inhibited carbon tetrachloride-induced liver fibrosis in mice, but its effects on liver cancer remain unknown. Thus, the purpose of this study was to investigate the antitumor effect of barbituric acid derivatives on HCC cells and sorafenib-resistant HCC cells (HCC-SRs). Our findings reveal that one of the barbituric acid derivatives, BA-5, significantly inhibited HCC and HCC-SR cell viability in a dose- and time-dependent manner. Therefore, compound BA-5 was selected for further experiments. Western blot data revealed that BA-5 treatment decreased the phosphorylation of AKT/p70s6k without affecting the MAPK pathway and increased cleaved PARP and cleaved caspase-7 in both HCC and HCC-SR cells. Since epithelial-mesenchymal transition plays a significant role in regulating cancer invasion and migration, we used the wound healing assay to evaluate the antimigratory effect of compound BA-5. The results showed that BA-5 treatment inhibited HCC and HCC-SR cell migration and reduced Vimentin protein expression. These results were confirmed by microarray analysis showing that BA-5 treatment influenced cancer cell motility and growth-related pathways. In the xenograft mouse model experiment, BA-5 administration significantly inhibited HCC cancer cell growth in mice. Furthermore, the combination of BA-5 with a low dose of regorafenib synergistically inhibited HCC-SR cell proliferation. In conclusion, our study showed that the barbituric acid derivative BA-5 is a new candidate for HCC and sorafenib-resistant HCC therapy.
Collapse
Affiliation(s)
- Yi-Jen Liao
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan; (Y.-J.L.); (C.-Y.C.); (Y.-H.W.)
| | - Shih-Ming Hsu
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei 11221, Taiwan;
| | - Chia-Ying Chien
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan; (Y.-J.L.); (C.-Y.C.); (Y.-H.W.)
| | - Yuan-Hsi Wang
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan; (Y.-J.L.); (C.-Y.C.); (Y.-H.W.)
| | - Ming-Hua Hsu
- Department of Chemistry, National Changhua University of Education, Changhua 50007, Taiwan
- Correspondence: (M.-H.H.); (F.-M.S.); Tel.: +886-4-7232105 (ext. 3511) (M.-H.H.); +886-2-27328232 (F.-M.S.)
| | - Fat-Moon Suk
- Division of Gastroenterology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Correspondence: (M.-H.H.); (F.-M.S.); Tel.: +886-4-7232105 (ext. 3511) (M.-H.H.); +886-2-27328232 (F.-M.S.)
| |
Collapse
|
31
|
Peng CC, Chen CR, Chen CY, Lin YC, Chen KC, Peng RY. Nifedipine Upregulates ATF6-α, Caspases -12, -3, and -7 Implicating Lipotoxicity-Associated Renal ER Stress. Int J Mol Sci 2020; 21:ijms21093147. [PMID: 32365658 PMCID: PMC7246953 DOI: 10.3390/ijms21093147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/13/2020] [Accepted: 04/23/2020] [Indexed: 01/20/2023] Open
Abstract
Nifedipine (NF) is reported to have many beneficial effects in antihypertensive therapy. Recently, we found that NF induced lipid accumulation in renal tubular cells. Palmitic acid-induced renal lipotoxicity was found to be partially mediated by endoplasmic reticular (ER) stress, while it can also be elicited by NF in kidney cells; we examined the induction of suspected pathways in both in vitro and in vivo models. NRK52E cells cultured in high-glucose medium were treated with NF (30 µM) for 24–48 h. ER stress-induced lipotoxicity was explored by staining with thioflavin T and Nile red, transmission electron microscopy, terminal uridine nick-end labeling, and Western blotting. ER stress was also investigated in rats with induced chronic kidney disease (CKD) fed NF for four weeks. NF induced the production of unfolded protein aggregates, resulting in ER stress, as evidenced by the upregulation of glucose-regulated protein, 78 kDa (GRP78), activating transcription factor 6α (ATF6α), C/EBP-homologous protein (CHOP), and caspases-12, -3, and -7. In vitro early apoptosis was more predominant than late apoptosis. Most importantly, ATF6α was confirmed to play a unique role in NF-induced ER stress in both models. CKD patients with hypertension should not undergo NF therapy. In cases where it is required, alleviation of ER stress should be considered to avoid further damaging the kidneys.
Collapse
Affiliation(s)
- Chiung-Chi Peng
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan;
| | - Chang-Rong Chen
- International Medical Doctor Program, Vita-Salute San Raffaele University, 20132 Milan, Italy;
| | - Chang-Yu Chen
- Program of Biomedical Sciences, College of Arts and Sciences, California Baptist University, Riverside, CA 92504, USA;
| | - Yen-Chung Lin
- Division of Nephrology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei 11031, Taiwan;
- Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Kuan-Chou Chen
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan;
- Department of Urology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Department of Urology, Taipei Medical University Shuang-Ho Hospital, Zhong-He District, New Taipei City 23561, Taiwan
- Correspondence:
| | - Robert Y. Peng
- Department of Biotechnology, College of Medical and Health Care, Hungkuang University, Shalu District, Taichung 43302, Taiwan;
| |
Collapse
|
32
|
Wang X, Lou K, Song X, Ma H, Zhou X, Xu H, Wang W. Mebendazole is a potent inhibitor to chemoresistant T cell acute lymphoblastic leukemia cells. Toxicol Appl Pharmacol 2020; 396:115001. [PMID: 32277947 DOI: 10.1016/j.taap.2020.115001] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 04/04/2020] [Accepted: 04/07/2020] [Indexed: 02/06/2023]
Abstract
Mebendazole (MBZ) is a tubulin-suppressive antihelmintic agent with low toxicity, which has been repurposed to treat different types of tumors. Chemoresistance is quite common in refractory or relapsed T cell acute lymphoblastic leukemia (T-ALL), which leads to dismal chances of recovery. In this study, MBZ was found to suppress the proliferation and reduce the viability of T-ALL cell line, CCRF-CEM, and its chemoresistant derivative, CEM/C1, at nanomolar concentrations. The inhibitive effects were found to be dose-dependent and not to be affected by the chemoresistance of CEM/C1 cells. Cell cycle arrest, caspase 3/7 activation and tubulin disruption were found in the MBZ-treated T-ALL cells. Notch1 signaling, which is often aberrantly activated in T-ALL cells, was showed to be suppressed by MBZ treatments. MBZ administration in murine T-ALL models also suppressed the growth of CEM/C1 cells, indicating that MBZ may be developed as a therapeutic agent for chemoresistant T-ALLs. The mRNA levels of the Notch1 and Hes1 were also confirmed to be suppressed by MBZ in vivo, which was consistent with the in vitro observations. This study demonstrated, for the first time, that MBZ could inhibit chemoresistant T-ALL cells both in vitro and in vivo, and the Notch1 signaling pathway was suppressed by MBZ treatment.
Collapse
Affiliation(s)
- Xiaolei Wang
- East China University of Science and Technology, State Key Laboratory of Bioreactor Engineering, Shanghai 200237, China; East China University of Science and Technology, School of Pharmacy, Department of Pharmaceutical Sciences, Shanghai 200237, China
| | - Kaiyan Lou
- East China University of Science and Technology, State Key Laboratory of Bioreactor Engineering, Shanghai 200237, China; East China University of Science and Technology, School of Pharmacy, Department of Pharmaceutical Sciences, Shanghai 200237, China
| | - Xiaodong Song
- Medical laboratory Department, Hua Shan Hospital North, Fudan University, Shanghai 201907, China
| | - Huijuan Ma
- East China University of Science and Technology, State Key Laboratory of Bioreactor Engineering, Shanghai 200237, China; East China University of Science and Technology, School of Pharmacy, Department of Pharmaceutical Sciences, Shanghai 200237, China
| | - Xinyi Zhou
- East China University of Science and Technology, State Key Laboratory of Bioreactor Engineering, Shanghai 200237, China; East China University of Science and Technology, School of Pharmacy, Department of Pharmaceutical Sciences, Shanghai 200237, China
| | - Huan Xu
- East China University of Science and Technology, State Key Laboratory of Bioreactor Engineering, Shanghai 200237, China; East China University of Science and Technology, School of Pharmacy, Department of Pharmaceutical Sciences, Shanghai 200237, China.
| | - Wei Wang
- East China University of Science and Technology, State Key Laboratory of Bioreactor Engineering, Shanghai 200237, China; East China University of Science and Technology, School of Pharmacy, Department of Pharmaceutical Sciences, Shanghai 200237, China; Department of Pharmacology and Toxicology and BIO5 Institute, University of Arizona, Tucson, AZ 85721-0207, USA.
| |
Collapse
|
33
|
Kelly JR, Martini S, Brownlow N, Joshi D, Federico S, Jamshidi S, Kjaer S, Lockwood N, Rahman KM, Fraternali F, Parker PJ, Soliman TN. The Aurora B specificity switch is required to protect from non-disjunction at the metaphase/anaphase transition. Nat Commun 2020; 11:1396. [PMID: 32170202 PMCID: PMC7070073 DOI: 10.1038/s41467-020-15163-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 02/21/2020] [Indexed: 12/22/2022] Open
Abstract
The Aurora B abscission checkpoint delays cytokinesis until resolution of DNA trapped in the cleavage furrow. This process involves PKCε phosphorylation of Aurora B S227. Assessing if this PKCε-Aurora B module provides a more widely exploited genome-protective control for the cell cycle, we show Aurora B phosphorylation at S227 by PKCε also occurs during mitosis. Expression of Aurora B S227A phenocopies inhibition of PKCε in by-passing the delay and resolution at anaphase entry that is associated with non-disjunction and catenation of sister chromatids. Implementation of this anaphase delay is reflected in PKCε activation following cell cycle dependent cleavage by caspase 7; knock-down of caspase 7 phenocopies PKCε loss, in a manner rescued by ectopically expressing/generating a free PKCε catalytic domain. Molecular dynamics indicates that Aurora B S227 phosphorylation induces conformational changes and this manifests in a profound switch in specificity towards S29 TopoIIα phosphorylation, a response necessary for catenation resolution during mitosis.
Collapse
Affiliation(s)
- Joanna R Kelly
- Protein Phosphorylation Laboratory, Francis Crick Institute, 1 Midland Rd, London, NW1 1AT, UK
- Cancer Research UK, Manchester Institute, Alderley Park, SK10 4TG, UK
| | - Silvia Martini
- Protein Phosphorylation Laboratory, Francis Crick Institute, 1 Midland Rd, London, NW1 1AT, UK
| | - Nicola Brownlow
- Protein Phosphorylation Laboratory, Francis Crick Institute, 1 Midland Rd, London, NW1 1AT, UK
- Instituto de Neurociencias, Av. Santiago Ramón y Cajal s/n 03550, San Juan de Alicante, Spain
| | - Dhira Joshi
- Peptide Chemistry Platform, Francis Crick Institute, 1 Midland Rd, London, NW1 1AT, UK
| | - Stefania Federico
- Peptide Chemistry Platform, Francis Crick Institute, 1 Midland Rd, London, NW1 1AT, UK
| | - Shirin Jamshidi
- School of Cancer and Pharmaceutical Sciences, King's College London, London, UK
| | - Svend Kjaer
- Structural Biology Platform, Francis Crick Institute, 1 Midland Rd, London, NW1 1AT, UK
| | - Nicola Lockwood
- Protein Phosphorylation Laboratory, Francis Crick Institute, 1 Midland Rd, London, NW1 1AT, UK
| | | | - Franca Fraternali
- Randall Centre for Cell and Molecular Biophysics, King's College London, London, UK
| | - Peter J Parker
- Protein Phosphorylation Laboratory, Francis Crick Institute, 1 Midland Rd, London, NW1 1AT, UK.
- School of Cancer and Pharmaceutical Sciences, King's College London, London, UK.
| | - Tanya N Soliman
- Protein Phosphorylation Laboratory, Francis Crick Institute, 1 Midland Rd, London, NW1 1AT, UK.
- Barts Cancer Institute, Queen Mary University London, Charterhouse Square, London, EC1M 6BE, UK.
| |
Collapse
|
34
|
Lee HS, Kim EN, Jeong GS. Lupenone Protects Neuroblastoma SH-SY5y Cells Against Methamphetamine-Induced Apoptotic Cell Death via PI3K/Akt/mTOR Signaling Pathway. Int J Mol Sci 2020; 21:ijms21051617. [PMID: 32120831 PMCID: PMC7084488 DOI: 10.3390/ijms21051617] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 02/17/2020] [Accepted: 02/25/2020] [Indexed: 12/11/2022] Open
Abstract
Methamphetamine (METH) is an addictive psychostimulant showing neurotoxicity through neuronal apoptosis and the neuro-inflammatory pathway. Lupenone, a lupane triterpenoid, is an isolated compound exhibiting anti-oxidative, anti-inflammation, and anti-diabetic activities. However, whether lupenone plays a protective role against apoptosis induced by METH in SH-SY5y neuroblastoma cells remains unknown. In the present study, we elucidated that lupenone had no toxicity to SH-SY5y cells at different concentrations. On the other hand, we found that the treatment of SH-SY5y cells with an optimal concentration of lupenone could lead to protection against cell death induced by METH. AnnexinV/PI apoptosis analysis revealed a dramatically reduced level of the apoptotic cell population in lupenon and METH treated SH-SY5y cells. Moreover, diminished expression of anti-apoptotic proteins, including Bcl-2, Caspase3, Caspase7, and Caspase8 in METH-exposed SH-SY5y cells, was significantly recovered by treatment with lupenone. This protection in the expression of anti-apoptotic proteins was due to an increased phosphorylation level of PI3K/Akt in METH-treated SH-SY5y cells pre-incubated with lupenone. These findings suggest that lupenone can protect SH-SY5y cells against METH-induced neuronal apoptosis through the PI3K/Akt pathway.
Collapse
|
35
|
Leong HS, Philp M, Simone M, Witting PK, Fu S. Synthetic Cathinones Induce Cell Death in Dopaminergic SH-SY5Y Cells via Stimulating Mitochondrial Dysfunction. Int J Mol Sci 2020; 21:ijms21041370. [PMID: 32085614 PMCID: PMC7073199 DOI: 10.3390/ijms21041370] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/13/2020] [Accepted: 02/16/2020] [Indexed: 01/22/2023] Open
Abstract
Increasing reports of neurological and psychiatric complications due to psychostimulant synthetic cathinones (SCs) have recently raised public concern. However, the precise mechanism of SC toxicity is unclear. This paucity of understanding highlights the need to investigate the in-vitro toxicity and mechanistic pathways of three SCs: butylone, pentylone, and 3,4-Methylenedioxypyrovalerone (MDPV). Human neuronal cells of SH-SY5Y were cultured in supplemented DMEM/F12 media and differentiated to a neuronal phenotype using retinoic acid (10 μM) and 12-O-tetradecanoylphorbol-13-acetate (81 nM). Trypan blue and lactate dehydrogenase assays were utilized to assess the neurotoxicity potential and potency of these three SCs. To investigate the underlying neurotoxicity mechanisms, measurements included markers of oxidative stress, mitochondrial bioenergetics, and intracellular calcium (Ca2+), and cell death pathways were evaluated at two doses (EC15 and EC40), for each drug tested. Following 24 h of treatment, all three SCs exhibited a dose-dependent neurotoxicity, characterized by a significant (p < 0.0001 vs. control) production of reactive oxygen species, decreased mitochondrial bioenergetics, and increased intracellular Ca2+ concentrations. The activation of caspases 3 and 7 implicated the orchestration of mitochondrial-mediated neurotoxicity mechanisms for these SCs. Identifying novel therapeutic agents to enhance an altered mitochondrial function may help in the treatment of acute-neurological complications arising from the illicit use of these SCs.
Collapse
Affiliation(s)
- Huey Sze Leong
- Centre for Forensic Science, School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia; (H.S.L.); (M.P.)
- Discipline of Pathology, Charles Perkins Centre, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2006, Australia;
| | - Morgan Philp
- Centre for Forensic Science, School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia; (H.S.L.); (M.P.)
| | - Martin Simone
- Discipline of Pathology, Charles Perkins Centre, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2006, Australia;
| | - Paul Kenneth Witting
- Discipline of Pathology, Charles Perkins Centre, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2006, Australia;
- Correspondence: (P.K.W.); (S.F.); Tel.: +61-2-9114-0524 (P.K.W.); +61-2-9514-8207 (S.F.)
| | - Shanlin Fu
- Centre for Forensic Science, School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia; (H.S.L.); (M.P.)
- Correspondence: (P.K.W.); (S.F.); Tel.: +61-2-9114-0524 (P.K.W.); +61-2-9514-8207 (S.F.)
| |
Collapse
|
36
|
Ma Q, Kuang J, Liu X, Li A, Feng W, Zhuang Z. Effects of osmotic stress on Na +/K +-ATPase, caspase 3/7 activity, and the expression profiling of sirt1, hsf1, and hsp70 in the roughskin sculpin (Trachidermus fasciatus). Fish Physiol Biochem 2020; 46:135-144. [PMID: 31624991 DOI: 10.1007/s10695-019-00703-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 09/04/2019] [Indexed: 06/10/2023]
Abstract
Osmoregulation mechanism underlying acclimation of migratory fish to different salinities has been a classical research topic for decades. In this study, the roughskin sculpin (Trachidermus fasciatus) were subjected to two different acute osmotic treatments (one extreme acute and one acute treatment, i.e., E-acute and acute group). Comparisons of branchial enzyme activity, as well as the time-course expression profiling of sirt1, hsf1, and hsp70 were performed to reveal changes at the physiological and molecular levels. As a result, the branchial Na+/K+-ATPase activity was significantly inhibited and the caspase 3/7 relating to apoptosis was significantly induced in the E-acute group; no significant difference of branchial enzyme activity was detected in the acute group. These results suggested that T. fasciatus could keep stable physiological levels when experiencing the acute salinity change but not under extreme osmotic stress. Significant variations of sirt1, hsf1, and hsp70 expression were determined in the four target tissues (gill, intestine, kidney, and liver). Similar profiling was detected between the time-course expression of sirt1 and hsf1, suggesting their association in the osmoregulation process. Tissue-specific gene expression patterns in all the three target genes showed that each tissue possesses its own gene expression pattern in response to salinity changes. The overall different expression profiling of sirt1, hsf1, and hsp70 under the extreme acute and acute osmotic treatments might respectively represent the molecular regulation of stress response and acclimation. The findings make it possible to provide more reliable data to decipher the mechanism of osmoregulation in migratory fish.
Collapse
Affiliation(s)
- Qian Ma
- College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, China
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - JieHua Kuang
- College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Xinfu Liu
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Ang Li
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Wenrong Feng
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Zhimeng Zhuang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China.
| |
Collapse
|
37
|
Ayyagari VN, Wang X, Diaz-Sylvester PL, Groesch K, Brard L. Assessment of acyl-CoA cholesterol acyltransferase (ACAT-1) role in ovarian cancer progression-An in vitro study. PLoS One 2020; 15:e0228024. [PMID: 31978092 PMCID: PMC6980601 DOI: 10.1371/journal.pone.0228024] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 01/06/2020] [Indexed: 02/05/2023] Open
Abstract
Abnormal accumulation of acyl-CoA cholesterol acyltransferase-1 (ACAT-1) mediated cholesterol ester has been shown to contribute to cancer progression in various cancers including leukemia, glioma, breast, pancreatic and prostate cancers. However, the significance of ACAT-1 and cholesterol esters (CE) is relatively understudied in ovarian cancer. In this in vitro study, we assessed the expression and contribution of ACAT-1 in ovarian cancer progression. We observed a significant increase in the expression of ACAT-1 and CE levels in a panel of ovarian cancer cell lines (OC-314, SKOV-3 and IGROV-1) compared to primary ovarian epithelial cells (normal controls). To confirm the tumor promoting capacity of ACAT-1, we inhibited ACAT-1 expression and activity by treating our cell lines with an ACAT inhibitor, avasimibe, or by stable transfection with ACAT-1 specific short hairpin RNA (shRNA). We observed significant suppression of cell proliferation, migration and invasion in ACAT-1 knockdown ovarian cancer cell lines compared to their respective controls (cell lines transfected with scrambled shRNA). ACAT-1 inhibition enhanced apoptosis with a concurrent increase in caspases 3/7 activity and decreased mitochondrial membrane potential. Increased generation of reactive oxygen species (ROS) coupled with increased expression of p53 may be the mechanism(s) underlying pro-apoptotic action of ACAT-1 inhibition. Additionally, ACAT-1 inhibited ovarian cancer cell lines displayed enhanced chemosensitivity to cisplatin treatment. These results suggest ACAT-1 may be a potential new target for the treatment of ovarian cancer.
Collapse
Affiliation(s)
- Vijayalakshmi N. Ayyagari
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Southern Illinois University School of Medicine, Springfield, IL, United States America
| | - Xinjia Wang
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Southern Illinois University School of Medicine, Springfield, IL, United States America
| | - Paula L. Diaz-Sylvester
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Southern Illinois University School of Medicine, Springfield, IL, United States America
- Center for Clinical Research, Southern Illinois University School of Medicine, Springfield, IL, United States America
| | - Kathleen Groesch
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Southern Illinois University School of Medicine, Springfield, IL, United States America
- Center for Clinical Research, Southern Illinois University School of Medicine, Springfield, IL, United States America
| | - Laurent Brard
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Southern Illinois University School of Medicine, Springfield, IL, United States America
- Simmons Cancer Institute at Southern Illinois University School of Medicine, Springfield, IL, United States America
- * E-mail:
| |
Collapse
|
38
|
Hanafy BI, Cave GWV, Barnett Y, Pierscionek B. Treatment of Human Lens Epithelium with High Levels of Nanoceria Leads to Reactive Oxygen Species Mediated Apoptosis. Molecules 2020; 25:E441. [PMID: 31973133 PMCID: PMC7036910 DOI: 10.3390/molecules25030441] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/16/2020] [Accepted: 01/16/2020] [Indexed: 11/16/2022] Open
Abstract
Nanoceria (cerium oxide nanoparticles) have been shown to protect human lens epithelial cells (HLECs) from oxidative stress when used at low concentrations. However, there is a lack of understanding about the mechanism of the cytotoxic and genotoxic effects of nanoceria when used at higher concentrations. Here, we investigated the impact of 24-hour exposure to nanoceria in HLECs. Nanoceria's effects on basal reactive oxygen species (ROS), mitochondrial morphology, membrane potential, ATP, genotoxicity, caspase activation and apoptotic hallmarks were investigated. Scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX) studies on isolated mitochondria revealed significant uptake and localization of nanoceria in the mitochondria. At high nanoceria concentrations (400 µg mL-1), intracellular levels of ROS were increased and the HLECs exhibited classical hallmarks of apoptosis. These findings concur with the cells maintaining normal ATP levels necessary to execute the apoptotic process. These results highlight the need for nanoceria dose-effect studies on a range of cells and tissues to identify therapeutic concentrations in vitro or in vivo.
Collapse
Affiliation(s)
- Belal I. Hanafy
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK; (B.I.H.); (G.W.V.C.); (Y.B.)
| | - Gareth W. V. Cave
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK; (B.I.H.); (G.W.V.C.); (Y.B.)
| | - Yvonne Barnett
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK; (B.I.H.); (G.W.V.C.); (Y.B.)
- Faculty of Science and Technology, Anglia Ruskin University, East Road, Cambridgeshire CB1 1PT, UK
| | - Barbara Pierscionek
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK; (B.I.H.); (G.W.V.C.); (Y.B.)
- School of Life Science and Education, Staffordshire University College Road, Stafford ST4 2DE, UK
| |
Collapse
|
39
|
Czarnik-Kwaśniak J, Kwaśniak K, Kwasek P, Świerzowska E, Strojewska A, Tabarkiewicz J. The Influence of Lycopene, [6]-Gingerol, and Silymarin on the Apoptosis on U-118MG Glioblastoma Cells In Vitro Model. Nutrients 2019; 12:E96. [PMID: 31905849 PMCID: PMC7019537 DOI: 10.3390/nu12010096] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 12/22/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Lycopene, gingerol, and silymarin have a potential anticancer activity in many types of neoplasms. Healthy lifestyle and proper diet are associated with a reduced risk of cancer and other diseases. Increasingly, clinical research focuses on the mechanisms of action of natural compounds and their impact on the development of cancer. The aim of the present study was to determine the effect of lycopene, gingerol, and silymarin on apoptosis, mitochondrial potential and caspase-3/7 activity in the U118-MG cell line. METHODS Human glioblastoma cells were incubated with lycopene, [6]-gingerol, and silymarin for 24 and 48 h. Apoptosis was monitored using the Annexin V labelling, caspase-3/7 activity, and early hallmark of apoptosis were determined with mitochondrial membrane potential changes. RESULTS Our data showed a significant decrease in the viability glioblastoma cells U118-MG after 48 h treatment with lycopene, [6]-gingerol, and silymarin. CONCLUSIONS Our data could confirm the stimulative effects of used compounds on apoptosis and changes in mitochondrial potential in a dose-dependent manner.
Collapse
Affiliation(s)
- Justyna Czarnik-Kwaśniak
- Centre for Innovative Research in Medical and Natural Sciences, Medical Faculty of University of Rzeszow, 1a Warzywna St., 35-310 Rzeszow, Poland;
- Department of Human Immunology, Medical Faculty of University of Rzeszow, 1a Warzywna St., 35-310 Rzeszow, Poland; (K.K.); (P.K.); (E.Ś.); (A.S.)
| | - Konrad Kwaśniak
- Department of Human Immunology, Medical Faculty of University of Rzeszow, 1a Warzywna St., 35-310 Rzeszow, Poland; (K.K.); (P.K.); (E.Ś.); (A.S.)
| | - Paulina Kwasek
- Department of Human Immunology, Medical Faculty of University of Rzeszow, 1a Warzywna St., 35-310 Rzeszow, Poland; (K.K.); (P.K.); (E.Ś.); (A.S.)
| | - Elżbieta Świerzowska
- Department of Human Immunology, Medical Faculty of University of Rzeszow, 1a Warzywna St., 35-310 Rzeszow, Poland; (K.K.); (P.K.); (E.Ś.); (A.S.)
| | - Agata Strojewska
- Department of Human Immunology, Medical Faculty of University of Rzeszow, 1a Warzywna St., 35-310 Rzeszow, Poland; (K.K.); (P.K.); (E.Ś.); (A.S.)
| | - Jacek Tabarkiewicz
- Centre for Innovative Research in Medical and Natural Sciences, Medical Faculty of University of Rzeszow, 1a Warzywna St., 35-310 Rzeszow, Poland;
- Department of Human Immunology, Medical Faculty of University of Rzeszow, 1a Warzywna St., 35-310 Rzeszow, Poland; (K.K.); (P.K.); (E.Ś.); (A.S.)
| |
Collapse
|
40
|
Oroz-Parra I, Álvarez-Delgado C, Cervantes-Luevano K, Dueñas-Espinoza S, Licea-Navarro AF. Proapoptotic Index Evaluation of Two Synthetic Peptides Derived from the Coneshell Californiconus californicus in Lung Cancer Cell Line H1299. Mar Drugs 2019; 18:md18010010. [PMID: 31861952 PMCID: PMC7024154 DOI: 10.3390/md18010010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/15/2019] [Accepted: 12/18/2019] [Indexed: 02/07/2023] Open
Abstract
Lung cancer is one of the most common types of cancer, accounting for approximately 15% of all cancer cases worldwide. Apoptosis is the dominant defense mechanism against tumor development. The balance between pro- and antiapoptotic members of the Bcl-2 protein family can determine cellular fate. The venom of predatory marine snails Conus is estimated to have 100-400 toxins called conotoxins. The family of α-conotoxins is known to consist of selective antagonists of nicotinic acetylcholine receptors (nAChRs). Lung cancer cells overexpress several subunits of nAChRs and are considered as an excellent target for new anticancer drugs. We compared the cytotoxic effect of two synthetic peptides derived from Californiconus californicus, Cal14.1a, and Cal14.1b, which only differ by one amino acid in their sequence, and compared their proapoptotic balance by Bax and Bcl-2 mRNA expression. We determined the caspase-3 and -7 activation to demonstrate apoptosis induction. Results showed that Cal14.1a induces a high Bax/Bcl-2 ratio in H1299 (lung cancer cells). Although Cal14.1b has a cytotoxic effect on H1299 cells, reducing cell viability by 30%, it does not increase the Bax/Bcl-2 ratio, which could be explained by the Glu in the 15th residue, which is crucial for the ability of Cal14.1a to induce apoptosis.
Collapse
Affiliation(s)
- Irasema Oroz-Parra
- Facultad de Ciencias Marinas, Universidad Autónoma de Baja California (UABC), Ensenada 22860, Baja California, Mexico;
- Departamento de Innovación Biomédica, Centro de Investigación y de Educación Superior de Ensenada (CICESE), Ensenada 22860, Baja California, Mexico (K.C.-L.); (S.D.-E.)
| | - Carolina Álvarez-Delgado
- Departamento de Innovación Biomédica, Centro de Investigación y de Educación Superior de Ensenada (CICESE), Ensenada 22860, Baja California, Mexico (K.C.-L.); (S.D.-E.)
| | - Karla Cervantes-Luevano
- Departamento de Innovación Biomédica, Centro de Investigación y de Educación Superior de Ensenada (CICESE), Ensenada 22860, Baja California, Mexico (K.C.-L.); (S.D.-E.)
| | - Salvador Dueñas-Espinoza
- Departamento de Innovación Biomédica, Centro de Investigación y de Educación Superior de Ensenada (CICESE), Ensenada 22860, Baja California, Mexico (K.C.-L.); (S.D.-E.)
| | - Alexei F. Licea-Navarro
- Departamento de Innovación Biomédica, Centro de Investigación y de Educación Superior de Ensenada (CICESE), Ensenada 22860, Baja California, Mexico (K.C.-L.); (S.D.-E.)
- Correspondence: ; Tel.: +52-646-1750500
| |
Collapse
|
41
|
Levchenko SM, Kuzmin AN, Pliss A, Ohulchanskyy TY, Prasad PN, Qu J. Cellular transformations in near-infrared light-induced apoptosis in cancer cells revealed by label-free CARS imaging. J Biophotonics 2019; 12:e201900179. [PMID: 31339662 DOI: 10.1002/jbio.201900179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 06/24/2019] [Accepted: 07/21/2019] [Indexed: 06/10/2023]
Abstract
Photobiomodulation (PBM) involves light to activate cellular signaling pathways leading to cell proliferation or death. In this work, fluorescence and Coherent anti-Stokes Raman Scattering (CARS) imaging techniques were applied to assess apoptosis in human cervical cancer cells (HeLa) induced by near infrared (NIR) laser light (808 nm). Using the Caspase 3/7 fluorescent probe to identify apoptotic cells, we found that the pro-apoptotic effect is significantly dependent of irradiation dose. The highest apoptosis rate was noted for the lower irradiation doses, that is, 0.3 J/cm2 (~58%) and 3 J/cm2 (~28%). The impact of light doses on proteins/lipids intracellular metabolism and distribution was evaluated using CARS imaging, which revealed apoptosis-associated reorganization of nuclear proteins and cytoplasmic lipids after irradiation with 0.3 J/cm2 . Doses of NIR light causing apoptosis (0.3, 3 and 30 J/cm2 ) induced a gradual increase in the nuclear protein level over time, in contrast to proteins in cells non-irradiated and irradiated with 10 J/cm2 . Furthermore, irradiation of the cells with the 0.3 J/cm2 dose resulted in lipid droplets (LDs) accumulation, which was apparently caused by an increase in reactive oxygen species (ROS) generation. We suggest that PBM induced apoptosis could be caused by the ability of NIR light to trigger excessive LDs formation which, in turn, induces cellular cytotoxicity.
Collapse
Affiliation(s)
- Svitlana M Levchenko
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, P. R. China
| | - Andrey N Kuzmin
- Institute for Lasers, Photonics and Biophotonics, University at Buffalo, State University of New York, Buffalo, New York
- Advanced Cytometry Instrumentation Systems, LLC, Buffalo, New York
| | - Artem Pliss
- Institute for Lasers, Photonics and Biophotonics, University at Buffalo, State University of New York, Buffalo, New York
- Advanced Cytometry Instrumentation Systems, LLC, Buffalo, New York
| | - Tymish Y Ohulchanskyy
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, P. R. China
| | - Paras N Prasad
- Institute for Lasers, Photonics and Biophotonics, University at Buffalo, State University of New York, Buffalo, New York
| | - Junle Qu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, P. R. China
| |
Collapse
|
42
|
Miceli M, Cutignano A, Conte M, Ummarino R, Romanelli A, Ruvo M, Leone M, Mercurio FA, Doti N, Manzo E, Romano G, Altucci L, Ianora A. Monoacylglycerides from the Diatom Skeletonema marinoi Induce Selective Cell Death in Cancer Cells. Mar Drugs 2019; 17:md17110625. [PMID: 31683792 PMCID: PMC6891494 DOI: 10.3390/md17110625] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/22/2019] [Accepted: 10/28/2019] [Indexed: 12/21/2022] Open
Abstract
Microalgae are an excellent source of valuable compounds for nutraceutical and cosmeceutical applications. These photosynthesizing microorganisms are amenable for large-scale production, thus overcoming the bottleneck of biomass supply for chemical and activity characterization of bioactive compounds. This characteristic has recently also prompted the screening of microalgae for potential pharmaceutical applications. Here, we show that monoacylglycerides (MAGs) purified from the marine diatom Skeletonema marinoi have selective cytotoxic activity against the haematological cancer cell line U-937 and colon cancer cell line HCT-116 compared to normal MePR-2B cells. LC-MS analysis of the raw extract revealed that in their natural form, MAGs occur as 2-monoacyl derivatives and include mainly C16 and C20 analogues, but they are converted into the corresponding 1-isomers during purification processes. Pure compounds along with the synthetic 1-monoarachidonoylglycerol tested on HCT-116 and U-937 tumor cell lines induced cell death via apoptosis. The mechanism of action was investigated, and we show that it involves the induction of apoptosis through caspase 3/7 activation. These findings pave the way for the possible use of these molecules as potential anticancer agents or as precursors for the generation of new and more potent and selective compounds against tumor cells.
Collapse
Affiliation(s)
- Marco Miceli
- CEINGE-Biotecnologie Avanzate s.c.ar.l., 80145 Naples, Italy.
| | - Adele Cutignano
- CNR-Institute of Biomolecular Chemistry, Via Campi Flegrei 34, Pozzuoli, 80078 Naples, Italy.
| | - Mariarosaria Conte
- Department of Precision Medicine, University of Campania 'Luigi Vanvitelli', Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Raffaella Ummarino
- Institute of Biostructures and Bioimaging (IBB-CNR), Via Mezzocannone 16, 80134 Naples, Italy.
- Marine Biotechnology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
| | - Alessandra Romanelli
- Department of Pharmaceutical Sciences, University of Milan, via Venezian 21, 20133 Milan, Italy.
| | - Menotti Ruvo
- Institute of Biostructures and Bioimaging (IBB-CNR), Via Mezzocannone 16, 80134 Naples, Italy.
| | - Marilisa Leone
- Institute of Biostructures and Bioimaging (IBB-CNR), Via Mezzocannone 16, 80134 Naples, Italy.
| | - Flavia Anna Mercurio
- Institute of Biostructures and Bioimaging (IBB-CNR), Via Mezzocannone 16, 80134 Naples, Italy.
| | - Nunzianna Doti
- Institute of Biostructures and Bioimaging (IBB-CNR), Via Mezzocannone 16, 80134 Naples, Italy.
| | - Emiliano Manzo
- CNR-Institute of Biomolecular Chemistry, Via Campi Flegrei 34, Pozzuoli, 80078 Naples, Italy.
| | - Giovanna Romano
- Marine Biotechnology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
| | - Lucia Altucci
- Department of Precision Medicine, University of Campania 'Luigi Vanvitelli', Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Adrianna Ianora
- Marine Biotechnology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
| |
Collapse
|
43
|
Wongchitrat P, Samutpong A, Lerdsamran H, Prasertsopon J, Yasawong M, Govitrapong P, Puthavathana P, Kitidee K. Elevation of Cleaved p18 Bax Levels Associated with the Kinetics of Neuronal Cell Death during Japanese Encephalitis Virus Infection. Int J Mol Sci 2019; 20:ijms20205016. [PMID: 31658698 PMCID: PMC6834179 DOI: 10.3390/ijms20205016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/06/2019] [Accepted: 10/08/2019] [Indexed: 11/16/2022] Open
Abstract
Japanese encephalitis virus (JEV) infection induces uncontrolled neuronal apoptosis, leading to irreversible brain damage. However, the mechanism of JEV-induced neuronal apoptosis has not been clearly elucidated. This study aimed to investigate both virus replication and neuronal cell apoptosis during JEV infection in human neuroblastoma SH-SY5Y cells. As a result, the kinetic productions of new viral progeny were time- and dose-dependent. The stimulation of SH-SY5Y cell apoptosis was dependent on the multiplicity of infections (MOIs) and infection periods, particularly during the late period of infection. Interestingly, we observed that of full-length Bax (p21 Bax) level started to decrease, which corresponded to the increased level of its cleaved form (p18 Bax). The formation of p18 Bax resulting in cytochrome c release into the cytosol appeared to correlate with JEV-induced apoptotic cell death together with the activation of caspase-3/7 activity, especially during the late stage of a robust viral infection. Therefore, our results suggest another possible mechanism of JEV-induced apoptotic cell death via the induction of the proteolysis of endogenous p21 Bax to generate p18 Bax. This finding could be a new avenue to facilitate novel drug discovery for the further development of therapeutic treatments that could relieve neuronal damage from JEV infection.
Collapse
Affiliation(s)
- Prapimpun Wongchitrat
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand.
| | - Arisara Samutpong
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand.
| | - Hatairat Lerdsamran
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand.
| | - Jarunee Prasertsopon
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand.
| | - Montri Yasawong
- Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand.
| | - Piyarat Govitrapong
- Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand.
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand.
| | - Pilaipan Puthavathana
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand.
| | - Kuntida Kitidee
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand.
| |
Collapse
|
44
|
Su F, Spee C, Araujo E, Barron E, Wang M, Ghione C, Hinton DR, Nusinowitz S, Kannan R, Reddy ST, Farias-Eisner R. A Novel HDL-Mimetic Peptide HM-10/10 Protects RPE and Photoreceptors in Murine Models of Retinal Degeneration. Int J Mol Sci 2019; 20:ijms20194807. [PMID: 31569695 PMCID: PMC6801888 DOI: 10.3390/ijms20194807] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 09/17/2019] [Indexed: 01/30/2023] Open
Abstract
Age-related macular degeneration (AMD) is a leading cause of blindness in the developed world. The retinal pigment epithelium (RPE) is a critical site of pathology in AMD. Oxidative stress plays a key role in the development of AMD. We generated a chimeric high-density lipoprotein (HDL), mimetic peptide named HM-10/10, with anti-oxidant properties and investigated its potential for the treatment of retinal disease using cell culture and animal models of RPE and photoreceptor (PR) degeneration. Treatment with HM-10/10 peptide prevented human fetal RPE cell death caused by tert-Butyl hydroperoxide (tBH)-induced oxidative stress and sodium iodate (NaIO3), which causes RPE atrophy and is a model of geographic atrophy in mice. We also show that HM-10/10 peptide ameliorated photoreceptor cell death and significantly improved retinal function in a mouse model of N-methyl-N-nitrosourea (MNU)-induced PR degeneration. Our results demonstrate that HM-10/10 protects RPE and retina from oxidant injury and can serve as a potential therapeutic agent for the treatment of retinal degeneration.
Collapse
Affiliation(s)
- Feng Su
- Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA.
| | - Christine Spee
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
| | - Eduardo Araujo
- Jules Stein Eye Institute, University of California at Los Angeles, Los Angeles, CA 90095, USA.
| | - Eric Barron
- The Stephen J. Ryan Initiative for Macular Research, Doheny Eye Institute, Los Angeles, CA 90033, USA.
| | - Mo Wang
- The Stephen J. Ryan Initiative for Macular Research, Doheny Eye Institute, Los Angeles, CA 90033, USA.
| | - Caleb Ghione
- Jules Stein Eye Institute, University of California at Los Angeles, Los Angeles, CA 90095, USA.
| | - David R Hinton
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
- Department of Ophthalmology, University of Southern California, Los Angeles, CA 90033, USA.
| | - Steven Nusinowitz
- Jules Stein Eye Institute, University of California at Los Angeles, Los Angeles, CA 90095, USA.
| | - Ram Kannan
- Jules Stein Eye Institute, University of California at Los Angeles, Los Angeles, CA 90095, USA.
- The Stephen J. Ryan Initiative for Macular Research, Doheny Eye Institute, Los Angeles, CA 90033, USA.
| | - Srinivasa T Reddy
- Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA.
- Department of Medicine, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA.
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA.
| | - Robin Farias-Eisner
- Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA.
- Department of Obstetrics and Gynecology, School of Medicine, Creighton University, Omaha, NE 68178, USA.
| |
Collapse
|
45
|
Uram Ł, Filipowicz-Rachwał A, Misiorek M, Winiarz A, Wałajtys-Rode E, Wołowiec S. Synthesis and Different Effects of Biotinylated PAMAM G3 Dendrimer Substituted with Nimesulide in Human Normal Fibroblasts and Squamous Carcinoma Cells. Biomolecules 2019; 9:biom9090437. [PMID: 31480608 PMCID: PMC6770390 DOI: 10.3390/biom9090437] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 08/26/2019] [Accepted: 08/27/2019] [Indexed: 12/12/2022] Open
Abstract
Squamous cell carcinoma (SCC) remains a main cause of mortality in patients with neck and head cancers, with poor prognosis and increased prevalence despite of available therapies. Recent studies have identified a role of cyclooxygenases, particularly inducible isoform cyclooxygenase-2 (COX-2) and its metabolite prostaglandin E2 (PGE2) in cancer cell proliferation, and its inhibition become a target for control of cancer development, particularly in the view of recognized additive or synergic action of COX-2 inhibitors with other forms of therapy. Nimesulide (N), the selective COX-2 inhibitor, inhibits growth and proliferation of various types of cancer cells by COX-2 dependent and independent mechanisms. In the presented study, the conjugates of biotinylated third generation poly(amidoamine) dendrimer (PAMAM) with covalently linked 18 (G3B18N) and 31 (G3B31N) nimesulide residues were synthesized and characterized by NMR spectroscopy. Biological properties of conjugates were evaluated, including cytotoxicity, proliferation, and caspase 3/7 activities in relation to COX-2/PGE2 axis signaling in human normal fibroblast (BJ) and squamous cell carcinoma (SCC-15). Both conjugates exerted a selective cytotoxicity against SCC-15 as compared with BJ cells at low 1.25-10 µM concentration range and their action in cancer cells was over 250-fold stronger than nimesulide alone. Conjugates overcome apoptosis resistance and sensitized SCC-15 cells to the apoptotic death independently of COX-2/PGE2 axis. In normal human fibroblasts the same concentrations of G3B31N conjugate were less effective in inhibition of proliferation and induction of apoptosis, as measured by caspase 3/7 activity in a manner depending on increase of PGE2 production by either COX-1/COX-2.
Collapse
Affiliation(s)
- Łukasz Uram
- Faculty of Chemistry, Rzeszow University of Technology, 6 Powstancow Warszawy, 35-959 Rzeszow, Poland.
| | | | - Maria Misiorek
- Faculty of Chemistry, Rzeszow University of Technology, 6 Powstancow Warszawy, 35-959 Rzeszow, Poland
| | - Aleksandra Winiarz
- Faculty of Chemistry, Rzeszow University of Technology, 6 Powstancow Warszawy, 35-959 Rzeszow, Poland
| | - Elżbieta Wałajtys-Rode
- Department of Drug Technology and Biotechnology, Faculty of Chemistry, Warsaw University of Technology, 00-664 Warsaw, Poland
| | - Stanisław Wołowiec
- Centre for Innovative Research in Medical and Natural Sciences, Faculty of Medicine, University of Rzeszow, 35-310 Rzeszow, Poland
| |
Collapse
|
46
|
Kirby L, Jin J, Cardona JG, Smith MD, Martin KA, Wang J, Strasburger H, Herbst L, Alexis M, Karnell J, Davidson T, Dutta R, Goverman J, Bergles D, Calabresi PA. Oligodendrocyte precursor cells present antigen and are cytotoxic targets in inflammatory demyelination. Nat Commun 2019; 10:3887. [PMID: 31467299 PMCID: PMC6715717 DOI: 10.1038/s41467-019-11638-3] [Citation(s) in RCA: 207] [Impact Index Per Article: 41.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 07/24/2019] [Indexed: 01/09/2023] Open
Abstract
Oligodendrocyte precursor cells (OPCs) are abundant in the adult central nervous system, and have the capacity to regenerate oligodendrocytes and myelin. However, in inflammatory diseases such as multiple sclerosis (MS) remyelination is often incomplete. To investigate how neuroinflammation influences OPCs, we perform in vivo fate-tracing in an inflammatory demyelinating mouse model. Here we report that OPC differentiation is inhibited by both effector T cells and IFNγ overexpression by astrocytes. IFNγ also reduces the absolute number of OPCs and alters remaining OPCs by inducing the immunoproteasome and MHC class I. In vitro, OPCs exposed to IFNγ cross-present antigen to cytotoxic CD8 T cells, resulting in OPC death. In human demyelinated MS brain lesions, but not normal appearing white matter, oligodendroglia exhibit enhanced expression of the immunoproteasome subunit PSMB8. Therefore, OPCs may be co-opted by the immune system in MS to perpetuate the autoimmune response, suggesting that inhibiting immune activation of OPCs may facilitate remyelination.
Collapse
Affiliation(s)
- Leslie Kirby
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Jing Jin
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | | | - Matthew D Smith
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Kyle A Martin
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | | | - Hayley Strasburger
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Leyla Herbst
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Maya Alexis
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | | | | | - Ranjan Dutta
- Department of Neuroscience, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Joan Goverman
- Department of Immunology, University of Washington, Seattle, WA, USA
| | - Dwight Bergles
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Peter A Calabresi
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, USA.
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD, USA.
| |
Collapse
|
47
|
Good AL, Cannon CE, Haemmerle MW, Yang J, Stanescu DE, Doliba NM, Birnbaum MJ, Stoffers DA. JUND regulates pancreatic β cell survival during metabolic stress. Mol Metab 2019; 25:95-106. [PMID: 31023625 PMCID: PMC6600134 DOI: 10.1016/j.molmet.2019.04.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 04/01/2019] [Accepted: 04/08/2019] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE In type 2 diabetes (T2D), oxidative stress contributes to the dysfunction and loss of pancreatic β cells. A highly conserved feature of the cellular response to stress is the regulation of mRNA translation; however, the genes regulated at the level of translation are often overlooked due to the convenience of RNA sequencing technologies. Our goal is to investigate translational regulation in β cells as a means to uncover novel factors and pathways pertinent to cellular adaptation and survival during T2D-associated conditions. METHODS Translating ribosome affinity purification (TRAP) followed by RNA-seq or RT-qPCR was used to identify changes in the ribosome occupancy of mRNAs in Min6 cells. Gene depletion studies used lentiviral delivery of shRNAs to primary mouse islets or CRISPR-Cas9 to Min6 cells. Oxidative stress and apoptosis were measured in primary islets using cell-permeable dyes with fluorescence readouts of oxidation and activated cleaved caspase-3 and-7, respectively. Gene expression was assessed by RNA-seq, RT-qPCR, and western blot. ChIP-qPCR was used to determine chromatin enrichment. RESULTS TRAP-seq in a PDX1-deficiency model of β cell dysfunction uncovered a cohort of genes regulated at the level of mRNA translation, including the transcription factor JUND. Using a panel of diabetes-associated stressors, JUND was found to be upregulated in mouse islets cultured with high concentrations of glucose and free fatty acid, but not after treatment with hydrogen peroxide or thapsigargin. This induction of JUND could be attributed to increased mRNA translation. JUND was also upregulated in islets from diabetic db/db mice and in human islets treated with high glucose and free fatty acid. Depletion of JUND in primary islets reduced oxidative stress and apoptosis in β cells during metabolic stress. Transcriptome assessment identified a cohort of genes, including pro-oxidant and pro-inflammatory genes, regulated by JUND that are commonly dysregulated in models of β cell dysfunction, consistent with a maladaptive role for JUND in islets. CONCLUSIONS A translation-centric approach uncovered JUND as a stress-responsive factor in β cells that contributes to redox imbalance and apoptosis during pathophysiologically relevant stress.
Collapse
Affiliation(s)
- Austin L Good
- Institute for Diabetes, Obesity, and Metabolism and the Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Corey E Cannon
- Institute for Diabetes, Obesity, and Metabolism and the Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Matthew W Haemmerle
- Institute for Diabetes, Obesity, and Metabolism and the Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Juxiang Yang
- Division of Endocrinology, Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
| | - Diana E Stanescu
- Division of Endocrinology, Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
| | - Nicolai M Doliba
- Institute for Diabetes, Obesity, and Metabolism and the Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Morris J Birnbaum
- Institute for Diabetes, Obesity, and Metabolism and the Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Doris A Stoffers
- Institute for Diabetes, Obesity, and Metabolism and the Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, 19104, USA.
| |
Collapse
|
48
|
Yuan L, Huang X, Zhou K, Zhu X, Huang B, Qiu S, Cao K, Xu L. Sea cucumber extract TBL-12 inhibits the proliferation, migration, and invasion of human prostate cancer cells through the p38 mitogen-activated protein kinase and intrinsic caspase apoptosis pathway. Prostate 2019; 79:826-839. [PMID: 30889629 DOI: 10.1002/pros.23788] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 02/19/2019] [Indexed: 01/17/2023]
Abstract
BACKGROUND Sea cucumber is a kind of nutritious echinoderm that has multiple biological activities, including antioxidant, antibacterial, and antitumor activities. However, there is no extensive study on the antitumor effect of sea cucumber extract on prostate cancer (PCa). TBL-12 is a new sea cucumber extract. In this study, we investigated the in vivo anti-PCa effect of TBL-12 and its in vitro effects on the proliferation, apoptosis, migration, and invasion of the human PCa cell lines LNCaP, 22RV1, PC-3, and DU145, and evaluated its possible mechanisms. METHODS Cell proliferation was analyzed by cell counting kit-8 and colony formation assays. Scratch migration assay and transwell invasiveness assay were used to observe TBL-12 effect on the migration and invasion of PCa cells. Matrix metalloproteinase 2 (MMP-2) and MMP-9 expression and enzymatic activity was determined by Western blot analysis, quantitative reverse-transcription polymerase chain reaction, and gelatin zymography. Apoptosis level was detected by flow cytometry analysis. Western blot analysis was used to analyze p38 mitogen-activated protein kinase (MAPK) and apoptosis pathways. Angiogenic array analysis was used to explore autocrine and paracrine growth factors in PCa cell lines. Xenograft tumor model was built to observe the in vivo anticancer effect. RESULTS TBL-12 could significantly inhibit tumor growth in xenograft PCa mice in vivo, and dramatically inhibit the proliferation, colony formation, migration, and invasiveness of PCa cells in vitro (P < 0.05 and P < 0.001). The expression and enzyme activity of MMP-2 and MMP-9 were significantly suppressed by TBL-12 ( P < 0.01), and decreased phosphorylation level of p38 in PCa cells was detected ( P < 0.001). Furthermore, TBL-12 could reinforce the MMP-2/MMP-9 inhibitory effect of SB203580, a specific inhibitor of the p38 MAPK pathway ( P < 0.05). Besides, TBL-12 could induce the apoptosis of PCa cells by activating caspase-9, caspase-7, and poly(ADP-ribose) polymerase and suppressing survivin, and inhibit the secretion of angiogenin, angiopoietin-2, and vascular endothelial growth factor in PCa cells. CONCLUSIONS Sea cucumber extract TBL-12 could suppress the proliferation and metastasis of human PCa cells by inhibiting MMP-2 and MMP-9 via blocking the p38 MAPK pathway, inducing apoptosis through intrinsic caspase apoptosis pathway and inhibiting the secretion of angiogenic factors. Our findings may be of importance and significance for the research and clinical applications of sea cucumber extract in PCa treatment.
Collapse
Affiliation(s)
- Lei Yuan
- Research Center for Clinical Laboratory Standard, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Xubin Huang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Kai Zhou
- Research Center for Clinical Laboratory Standard, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Xun Zhu
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Bin Huang
- Department of Urology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Shaopeng Qiu
- Department of Urology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Kaiyuan Cao
- Research Center for Clinical Laboratory Standard, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Lin Xu
- Research Center for Clinical Laboratory Standard, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| |
Collapse
|
49
|
Radovanović V, Vlainić J, Hanžić N, Ukić P, Oršolić N, Baranović G, Jazvinšćak Jembrek M. Neurotoxic Effect of Ethanolic Extract of Propolis in the Presence of Copper Ions is Mediated through Enhanced Production of ROS and Stimulation of caspase-3/7 Activity. Toxins (Basel) 2019; 11:toxins11050273. [PMID: 31096598 PMCID: PMC6563224 DOI: 10.3390/toxins11050273] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 04/26/2019] [Accepted: 05/13/2019] [Indexed: 12/20/2022] Open
Abstract
Elevated amounts of copper are considered to be contributing factor in the progression of neurodegenerative diseases as they promote oxidative stress conditions. The aim of our study was to examine the effects of ethanolic extract of propolis (EEP) against copper-induced neuronal damage. In cultured P19 neuronal cells, EEP exacerbated copper-provoked neuronal cell death by increasing the generation of reactive oxygen species (ROS) and through the activation of caspase-3/7 activity. EEP augmented copper-induced up-regulation of p53 and Bax mRNA expressions. Neurotoxic effects of EEP were accompanied by a strong induction of glyceraldehyde 3-phosphate dehydrogenase (GAPDH) expression and decrease in the expression of c-fos mRNA. SB203580, an inhibitor of p38 mitogen-activated protein kinase (MAPK) prevented detrimental effects of EEP, whereas SP600125, an inhibitor of c-Jun N-terminal kinase (JNK), exacerbated EEP-induced neuronal cell death. Quercetin, a polyphenolic nutraceutical, which is usually present in propolis, was also able to exacerbate copper-induced neuronal death. Our data indicates a pro-oxidative and apoptotic mode of EEP action in the presence of excess copper, wherein ROS/p53/p38 interactions play an important role in death cascades. Our study also pointed out that detailed pharmacological and toxicological studies must be carried out for propolis and other dietary supplements in order to fully recognize the potential adverse effects in specific conditions.
Collapse
Affiliation(s)
- Vedrana Radovanović
- Division of Molecular Medicine, Rudjer Boskovic Institute, 100000 Zagreb, Croatia.
| | - Josipa Vlainić
- Division of Molecular Medicine, Rudjer Boskovic Institute, 100000 Zagreb, Croatia.
| | - Nikolina Hanžić
- Division of Molecular Medicine, Rudjer Boskovic Institute, 100000 Zagreb, Croatia.
| | - Petra Ukić
- Department of Animal Physiology, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia.
| | - Nada Oršolić
- Department of Animal Physiology, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia.
| | - Goran Baranović
- Division of Organic Chemistry and Biochemistry, Rudjer Boskovic Institute, 10000 Zagreb, Croatia.
| | - Maja Jazvinšćak Jembrek
- Division of Molecular Medicine, Rudjer Boskovic Institute, 100000 Zagreb, Croatia.
- Department of Psychology, Catholic University of Croatia, Ilica 242, 10000 Zagreb, Croatia.
| |
Collapse
|
50
|
Denhez B, Rousseau M, Dancosst DA, Lizotte F, Guay A, Auger-Messier M, Côté AM, Geraldes P. Diabetes-Induced DUSP4 Reduction Promotes Podocyte Dysfunction and Progression of Diabetic Nephropathy. Diabetes 2019; 68:1026-1039. [PMID: 30862678 DOI: 10.2337/db18-0837] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 02/25/2019] [Indexed: 11/13/2022]
Abstract
Diabetic nephropathy (DN) remains the leading cause of end-stage renal disease. Hyperglycemia-induced podocyte dysfunction is a major contributor of renal function impairment in DN. Previous studies showed that activation of mitogen-activated protein kinase (MAPK) in diabetes promotes podocyte dysfunction and cell death. Dual specificity phosphatases (DUSPs) are a family of phosphatases mainly responsible for MAPK inhibition. In this study, we demonstrated that diabetes and high glucose exposure decreased DUSP4 expression in cultured podocytes and glomeruli. Diabetes-induced DUSP4 reduction enhanced p38 and c-Jun N-terminal kinase (JNK) activity and podocyte dysfunction. The overexpression of DUSP4 prevented the activation of p38, JNK, caspase 3/7 activity, and NADPH oxidase 4 expression induced by high glucose level exposure. Deletion of DUSP4 exacerbated albuminuria and increased mesangial expansion and glomerular fibrosis in diabetic mice. These morphological changes were associated with profound podocyte foot process effacement, cell death, and sustained p38 and JNK activation. Moreover, inhibition of protein kinase C-δ prevented DUSP4 expression decline and p38/JNK activation in the podocytes and renal cortex of diabetic mice. Analysis of DUSP4 expression in the renal cortex of patients with diabetes revealed that decreased DUSP4 mRNA expression correlated with reduced estimated glomerular filtration rate (<60 mL/min/1.73 m2). Thus, this study demonstrates that preserving DUSP4 expression could protect against podocyte dysfunction and preserve glomerular function in DN.
Collapse
Affiliation(s)
- Benoit Denhez
- Research Center of the CHU de Sherbrooke, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Marina Rousseau
- Research Center of the CHU de Sherbrooke, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | | | - Farah Lizotte
- Research Center of the CHU de Sherbrooke, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Andréanne Guay
- Research Center of the CHU de Sherbrooke, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Mannix Auger-Messier
- Research Center of the CHU de Sherbrooke, Université de Sherbrooke, Sherbrooke, Québec, Canada
- Division of Cardiology, Department of Medicine, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Anne Marie Côté
- Research Center of the CHU de Sherbrooke, Université de Sherbrooke, Sherbrooke, Québec, Canada
- Division of Nephrology, Department of Medicine, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Pedro Geraldes
- Research Center of the CHU de Sherbrooke, Université de Sherbrooke, Sherbrooke, Québec, Canada
- Division of Endocrinology, Department of Medicine, Université de Sherbrooke, Sherbrooke, Québec, Canada
| |
Collapse
|