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Liang X, Qin Y, Wu D, Wang Q, Wu H. Pyroptosis: a double-edged sword in lung cancer and other respiratory diseases. Cell Commun Signal 2024; 22:40. [PMID: 38225586 PMCID: PMC10790448 DOI: 10.1186/s12964-023-01458-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 12/23/2023] [Indexed: 01/17/2024] Open
Abstract
Pyroptosis is an active cell death process mediated by gasdermin family proteins including Gasdermin A (GSDMA), Gasdermin B (GSDMB), Gasdermin C (GSDMC), Gasdermin D (GSDMD), Gasdermin E (GSDME, DFNA5), and DFNB59. Emerging evidences have shown that pyroptosis contributes to many pulmonary diseases, especially lung cancer, and pneumonia. The exact roles of pyroptosis and gasdermin family proteins are tremendously intricate. Besides, there are evidences that pyroptosis contributes to these respiratory diseases. However, it often plays a dual role in these diseases which is a cause for concern and makes it difficult for clinical translation. This review will focus on the multifaceted roles of pyroptosis in respiratory diseases.
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Affiliation(s)
- Xiao Liang
- Department of Oncology, the Affiliated Jiangyin Hospital of Nantong University, 163# Shoushan Road, Jiangyin, Jiangsu, 214400, P. R. China
| | - Ya Qin
- Department of Oncology, the Affiliated Jiangyin Hospital of Nantong University, 163# Shoushan Road, Jiangyin, Jiangsu, 214400, P. R. China
| | - Dan Wu
- Department of Oncology, the Affiliated Jiangyin Hospital of Nantong University, 163# Shoushan Road, Jiangyin, Jiangsu, 214400, P. R. China
| | - Qiong Wang
- Department of Oncology, the Affiliated Jiangyin Hospital of Nantong University, 163# Shoushan Road, Jiangyin, Jiangsu, 214400, P. R. China.
| | - Hongshuai Wu
- Wuxi Key Laboratory of Biomaterials for Clinical Application, Department of Central Laboratory, the Affiliated Jiangyin Hospital of Nantong University, 163# Shoushan Road, Jiangyin, Jiangsu, 214400, P. R. China.
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Nishiguchi H, Omura T, Sato A, Kitahiro Y, Yamamoto K, Kunimasa J, Yano I. Luteolin Protects Against 6-Hydoroxydopamine-Induced Cell Death via an Upregulation of HRD1 and SEL1L. Neurochem Res 2024; 49:117-128. [PMID: 37632637 PMCID: PMC10776467 DOI: 10.1007/s11064-023-04019-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 08/28/2023]
Abstract
Parkinson's Disease (PD) is caused by many factors and endoplasmic reticulum (ER) stress is considered as one of the responsible factors for it. ER stress induces the activation of the ubiquitin-proteasome system to degrade unfolded proteins and suppress cell death. The ubiquitin ligase 3-hydroxy-3-methylglutaryl-coenzyme A reductase degradation 1 (HRD1) and its stabilizing molecule, the suppressor/enhancer lin-12-like (SEL1L), can suppress the ER stress via the ubiquitin-proteasome system, and that HRD1 can also suppress cell death in familial and nonfamilial PD models. These findings indicate that HRD1 and SEL1L might be key proteins for the treatment of PD. Our study aimed to identify the compounds with the effects of upregulating the HRD1 expression and suppressing neuronal cell death in a 6-hydroxydopamine (6-OHDA)-induced cellular PD model. Our screening by the Drug Gene Budger, a drug repositioning tool, identified luteolin as a candidate compound for the desired modulation of the HRD1 expression. Subsequently, we confirmed that low concentrations of luteolin did not show cytotoxicity in SH-SY5Y cells, and used these low concentrations in the subsequent experiments. Next, we demonsrated that luteolin increased HRD1 and SEL1L mRNA levels and protein expressions. Furthermore, luteolin inhibited 6-OHDA-induced cell death and suppressed ER stress response caused by exposure to 6-OHDA. Finally, luteolin did not reppress 6-OHDA-induced cell death when expression of HRD1 or SEL1L was suppressed by RNA interference. These findings suggest that luteolin might be a novel therapeutic agent for PD due to its ability to suppress ER stress through the activation of HRD1 and SEL1L.
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Affiliation(s)
- Hiroki Nishiguchi
- Department of Pharmacy, Kobe University Hospital, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Tomohiro Omura
- Department of Pharmacy, Kobe University Hospital, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
| | - Ayaka Sato
- Education and Research Center for Clinical Pharmacy, Kobe Pharmaceutical University, 4-19-1, Motoyama Kitamachi, Higashinada-ku, Kobe, 658-8558, Japan
| | - Yumi Kitahiro
- Department of Pharmacy, Kobe University Hospital, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Kazuhiro Yamamoto
- Department of Pharmacy, Kobe University Hospital, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Junichi Kunimasa
- Education and Research Center for Clinical Pharmacy, Kobe Pharmaceutical University, 4-19-1, Motoyama Kitamachi, Higashinada-ku, Kobe, 658-8558, Japan
| | - Ikuko Yano
- Department of Pharmacy, Kobe University Hospital, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
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Wang X, Gong Z, Wang T, Law J, Chen X, Wanggou S, Wang J, Ying B, Francisco M, Dong W, Xiong Y, Fan JJ, MacLeod G, Angers S, Li X, Dirks PB, Liu X, Huang X, Sun Y. Mechanical nanosurgery of chemoresistant glioblastoma using magnetically controlled carbon nanotubes. SCIENCE ADVANCES 2023; 9:eade5321. [PMID: 36989359 PMCID: PMC10058241 DOI: 10.1126/sciadv.ade5321] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Glioblastoma (GBM) is the most common and aggressive primary brain cancer. Despite multimodal treatment including surgery, radiotherapy, and chemotherapy, median patient survival has remained at ~15 months for decades. This situation demands an outside-the-box treatment approach. Using magnetic carbon nanotubes (mCNTs) and precision magnetic field control, we report a mechanical approach to treat chemoresistant GBM. We show that GBM cells internalize mCNTs, the mobilization of which by rotating magnetic field results in cell death. Spatiotemporally controlled mobilization of intratumorally delivered mCNTs suppresses GBM growth in vivo. Functionalization of mCNTs with anti-CD44 antibody, which recognizes GBM cell surface-enriched antigen CD44, increases mCNT recognition of cancer cells, prolongs mCNT enrichment within the tumor, and enhances therapeutic efficacy. Using mouse models of GBM with upfront or therapy-induced resistance to temozolomide, we show that mCNT treatment is effective in treating chemoresistant GBM. Together, we establish mCNT-based mechanical nanosurgery as a treatment option for GBM.
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Affiliation(s)
- Xian Wang
- Program in Developmental and Stem Cell Biology, The Hospital for Sick Children, Toronto, ON, Canada
- Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada
| | - Zheyuan Gong
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada
| | - Tiancong Wang
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada
| | - Junhui Law
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada
| | - Xin Chen
- Program in Developmental and Stem Cell Biology, The Hospital for Sick Children, Toronto, ON, Canada
- Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada
- Songjiang Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Siyi Wanggou
- Program in Developmental and Stem Cell Biology, The Hospital for Sick Children, Toronto, ON, Canada
- Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan International Scientific and Technological Cooperation Base of Brain Tumor Research, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jintian Wang
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada
| | - Binbin Ying
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada
| | - Michelle Francisco
- Program in Developmental and Stem Cell Biology, The Hospital for Sick Children, Toronto, ON, Canada
- Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada
| | - Weifan Dong
- Program in Developmental and Stem Cell Biology, The Hospital for Sick Children, Toronto, ON, Canada
- Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Molecular Genetics, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Yi Xiong
- Program in Developmental and Stem Cell Biology, The Hospital for Sick Children, Toronto, ON, Canada
- Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan International Scientific and Technological Cooperation Base of Brain Tumor Research, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jerry J. Fan
- Program in Developmental and Stem Cell Biology, The Hospital for Sick Children, Toronto, ON, Canada
- Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Molecular Genetics, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Graham MacLeod
- Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto, ON, Canada
| | - Stephane Angers
- Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto, ON, Canada
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
- Department of Biochemistry, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Xuejun Li
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan International Scientific and Technological Cooperation Base of Brain Tumor Research, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Peter B. Dirks
- Program in Developmental and Stem Cell Biology, The Hospital for Sick Children, Toronto, ON, Canada
- Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Molecular Genetics, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Xinyu Liu
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada
| | - Xi Huang
- Program in Developmental and Stem Cell Biology, The Hospital for Sick Children, Toronto, ON, Canada
- Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Molecular Genetics, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Corresponding author. (X.H.); (Y.S.)
| | - Yu Sun
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON, Canada
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON, Canada
- Department of Computer Science, University of Toronto, Toronto, ON, Canada
- Corresponding author. (X.H.); (Y.S.)
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Upregulation of TLR4-Dependent ATP Production Is Critical for Glaesserella parasuis LPS-Mediated Inflammation. Cells 2023; 12:cells12050751. [PMID: 36899887 PMCID: PMC10001010 DOI: 10.3390/cells12050751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 02/15/2023] [Accepted: 02/24/2023] [Indexed: 03/02/2023] Open
Abstract
Glaesserella parasuis (G. parasuis), an important pathogenic bacterium, cause Glässer's disease, and has resulted in tremendous economic losses to the global swine industry. G. parasuis infection causes typical acute systemic inflammation. However, the molecular details of how the host modulates the acute inflammatory response induced by G. parasuis are largely unknown. In this study, we found that G. parasuis LZ and LPS both enhanced the mortality of PAM cells, and at the same time, the level of ATP was enhanced. LPS treatment significantly increased the expressions of IL-1β, P2X7R, NLRP3, NF-κB, p-NF-κB, and GSDMD, leading to pyroptosis. Furthermore, these proteins' expression was enhanced following extracellular ATP further stimulation. When reduced the production of P2X7R, NF-κB-NLRP3-GSDMS inflammasome signaling pathway was inhibited, and the mortality of cells was reduced. MCC950 treatment repressed the formation of inflammasome and reduced mortality. Further exploration found that the knockdown of TLR4 significantly reduced ATP content and cell mortality, and inhibited the expression of p-NF-κB and NLRP3. These findings suggested upregulation of TLR4-dependent ATP production is critical for G. parasuis LPS-mediated inflammation, provided new insights into the molecular pathways underlying the inflammatory response induced by G. parasuis, and offered a fresh perspective on therapeutic strategies.
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McAllister IL, Vijayasekaran S, Bhikoo R, Chen FK, Zhang D, Kanagalingam E, McLenachan S, Yu DY. Inner Retinal Changes in Acute Experimental BRVO Treated With Bevacizumab or Triamcinolone Acetonide. Transl Vis Sci Technol 2023; 12:11. [PMID: 36753186 PMCID: PMC9919627 DOI: 10.1167/tvst.12.2.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
Purpose Apoptosis is a key process in neural degeneration associated with retinal vascular diseases. Vascular endothelial growth factor (VEGF) antagonists, including bevacizumab, are used to treat macular edema in these diseases. As VEGF has a critical role in the preservation of retinal neuronal cells, this study investigates the effects of bevacizumab on neural damage in a pig model of branch retinal vein occlusion (BRVO) and compares it with triamcinolone acetonide (TA) which is reported to possess neuroprotective properties. Methods Thirty-six pigs had a photothrombotic BRVO in both eyes. Six pigs were injected with bevacizumab in one eye and TA in the fellow eye, then they were sacrificed, the eyes enucleated, and retinas processed at 2, 6, 10, and 20 days, respectively, together with three pigs (six eyes) BRVO only and three normal pigs (six eyes). Neuronal degeneration (apoptosis) and associated inner retinal changes were determined by terminal deoxyynuclotidyl transferase dUTP nick-end labeling (TUNEL), histology, and immunohistochemistry for macrophages. Results TUNEL labeling showed significantly higher apoptosis rates in the ganglion cell layer (GCL) and the inner nuclear layer (INL) in the bevacizumab-treated compared with the TA-treated retinas at 2, 10, and 20 day time points after occlusion (P < 0.05). Pyknotic cells were significantly higher in the GCL in bevacizumab-treated eyes at 6, 10, and 20 days and in the INL at 2 days compared to TA-treated retinas (P < 0.05). Macrophage infiltration was seen at all time points in both untreated and treated retinas with an absence of significance between bevacizumab- and TA-treated retinas (P > 0.05). Conclusions Neurodegeneration in the BRVO acute phase is exacerbated by current standard treatments for BRVO. These results may have implications for the timing and treatment type. Translational Relevance In the acute phase of BRVO, VEGF suppression with bevacizumab and to a lesser extent with triamcinolone exacerbates apoptosis in the inner retinal layers, which has implications for both the timing and choice of treatment.
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Affiliation(s)
- Ian L. McAllister
- Centre for Ophthalmology and Visual Science, The University of Western Australia, Perth, Australia,Lions Eye Institute, The University of Western Australia, Perth, Australia,Department of Ophthalmology, Royal Perth Hospital, Perth, Australia
| | - Sarojini Vijayasekaran
- Centre for Ophthalmology and Visual Science, The University of Western Australia, Perth, Australia,Lions Eye Institute, The University of Western Australia, Perth, Australia
| | - Riyaz Bhikoo
- Lions Eye Institute, The University of Western Australia, Perth, Australia,Department of Ophthalmology, Royal Perth Hospital, Perth, Australia
| | - Fred K. Chen
- Centre for Ophthalmology and Visual Science, The University of Western Australia, Perth, Australia,Lions Eye Institute, The University of Western Australia, Perth, Australia,Department of Ophthalmology, Royal Perth Hospital, Perth, Australia,Ophthalmology, Department of Surgery, University of Melbourne, East Melbourne, Australia
| | - Dan Zhang
- Centre for Ophthalmology and Visual Science, The University of Western Australia, Perth, Australia,Lions Eye Institute, The University of Western Australia, Perth, Australia
| | - Emily Kanagalingam
- Centre for Ophthalmology and Visual Science, The University of Western Australia, Perth, Australia,Lions Eye Institute, The University of Western Australia, Perth, Australia
| | - Samuel McLenachan
- Centre for Ophthalmology and Visual Science, The University of Western Australia, Perth, Australia,Lions Eye Institute, The University of Western Australia, Perth, Australia
| | - Dao-Yi Yu
- Centre for Ophthalmology and Visual Science, The University of Western Australia, Perth, Australia,Lions Eye Institute, The University of Western Australia, Perth, Australia
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Ultrasound frequency sonication facilitates high-throughput and uniform dissociation of cellular aggregates and tissues. SLAS Technol 2023; 28:70-81. [PMID: 36642327 DOI: 10.1016/j.slast.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 12/08/2022] [Accepted: 01/01/2023] [Indexed: 01/15/2023]
Abstract
A sample preparation step involving dissociation of tissues into their component cells is often required to conduct analysis of nucleic acids and other constituents from tissue samples. Frequently, the extracellular matrix and cell-cell adhesions are disrupted via treatment with a chemical dissociating reagent or various mechanical forces. In this work, a new, high-throughput, multiplexed method of dissociating tissues and cellular aggregates into single cells using ultrasound frequency bath sonication is explored and characterized. Different operating parameters are evaluated, and a treatment protocol with potential for uniform, high-throughput tissue dissociation is compared to the existing best chemical and orbital plate shaking protocol. Metrics such as percent dissociation, cellular recovery, average aggregate size, proportion of various aggregate sizes, membrane circularity, and cellular viability are subsequently assessed and found to be favorable. In optimized conditions, 53 ± 8% of 1 mm biopsy cores are dissociated within 30 min using sonication alone, surpassing leading high-throughput orbital plate shaking techniques five-fold. Chemical digestion is also 2 times more effective when complexed with sonication rather than orbital plate shaking. RNA content, quality, and expression are found to be superior to the standard protocol in terms of transcriptional preservation.
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Identification of cuproptosis-related subtypes and development of a prognostic signature in colorectal cancer. Sci Rep 2022; 12:17348. [PMID: 36253436 PMCID: PMC9576756 DOI: 10.1038/s41598-022-22300-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 10/12/2022] [Indexed: 01/10/2023] Open
Abstract
Cuproptosis, a novel form of copper-mediated regulated cell death, participates in tumor progression. However, the role of cuproptosis-related genes (CRGs) in colorectal cancer (CRC) remains unclear. We aimed to investigate the cuproptosis subtypes and build a predictive model to improve the prognosis of patients with CRC. Gene expression data were downloaded from the TCGA database to identify distinct molecular subtypes using a non-negative matrix factorization algorithm. A robust and efficient prognostic signature was constructed by performing multivariate Cox regression analysis and further validated using the Gene Expression Omnibus cohort. Based on the gene expression matrix of CRC, the abundance of infiltrating immune cells and tumour microenvironment scores were calculated using the CIBERSORT and ESTIMATE algorithms, respectively. The pRRophetic algorithm was used to predict the sensitivity of the patients to different chemotherapy drugs. Two distinct molecular subtypes were identified based on 41 CRGs, with subtype C1 being characterized by an advanced clinical stage and worse overall survival. A prognostic signature was constructed based on the DEGs between the two cuproptosis subtypes, and its predictive ability was validated in an external database. Patients with CRC who belonged to the low-risk group had significantly higher survival rates than those who belonged to the high-risk group. Additionally, it remained a valid prognostic indicator in strata of age, sex, tumor location, and TNM stage, and its significance persisted after the multivariate Cox regression analysis. By further analyzing the prognostic signature, a higher immune score was observed in the low-risk group, which presented a better prognosis. AKT.inhibitor.VIII, doxorubicin, lenalidomide, and tipiparnib were more sensitive in the high-risk score group. A highly accurate nomogram was constructed to improve clinical application of the risk score. Compared with an ideal nomogram, our model, consisting of clinicopathological features, performed well in predicting patient survival. In conclusion, our study provides new ways and perspectives for the prediction of the prognosis of patients with CRC and guide more effective treatment regimens.
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Tolstik E, Gongalsky MB, Dierks J, Brand T, Pernecker M, Pervushin NV, Maksutova DE, Gonchar KA, Samsonova JV, Kopeina G, Sivakov V, Osminkina LA, Lorenz K. Raman and fluorescence micro-spectroscopy applied for the monitoring of sunitinib-loaded porous silicon nanocontainers in cardiac cells. Front Pharmacol 2022; 13:962763. [PMID: 36016563 PMCID: PMC9397571 DOI: 10.3389/fphar.2022.962763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 07/05/2022] [Indexed: 11/17/2022] Open
Abstract
Nanomaterials are a central pillar in modern medicine. They are thought to optimize drug delivery, enhance therapeutic efficacy, and reduce side-effects. To foster this technology, analytical methods are needed to validate not only the localization and distribution of these nanomaterials, but also their compatibility with cells, drugs, and drug release. In the present work, we assessed nanoparticles based on porous silicon (pSiNPs) loaded with the clinically used tyrosine kinase inhibitor sunitinib for their effectiveness of drug delivery, release, and toxicity in colon cancer cells (HCT 116 cells) and cardiac myoblast cells (H9c2) using Raman micro-spectroscopy, high-resolution fluorescence microscopy, along with biological methods for toxicological effects. We produced pSiNPs with a size of about 100 nm by grinding mesoporous silicon layers. pSiNPs allowed an effective loading of sunitinib due to their high porosity. Photoluminescence properties of the nanoparticles within the visible spectrum allowed the visualization of their uptake in cardiac cells. Raman micro-spectroscopy allowed not only the detection of the uptake and distribution of pSiNPs within the cells via a characteristic silicon Raman band at about 518–520 cm−1, but also the localization of the drug based on its characteristic molecular fingerprints. Cytotoxicity studies by Western blot analyses of apoptotic marker proteins such as caspase-3, and the detection of apoptosis by subG1-positive cell fractions in HCT 116 and MTT analyses in H9c2 cells, suggest a sustained release of sunitinib from pSiNPs and delayed cytotoxicity of sunitinib in HCT 116 cells. The analyses in cardiac cells revealed that pSiNPs are well tolerated and that they may even protect from toxic effects in these cells to some extent. Analyses of the integrity of mitochondrial networks as an early indicator for apoptotic cellular effects seem to validate these observations. Our study suggests pSiNPs-based nanocontainers for efficient and safe drug delivery and Raman micro-spectroscopy as a reliable method for their detection and monitoring. Thus, the herein presented nanocontainers and analytical methods have the potential to allow an efficient advancement of nanoparticles for targeted and sustained intracellular drug release that is of need, e.g., in chronic diseases and for the prevention of cardiac toxicity.
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Affiliation(s)
- E. Tolstik
- Leibniz-Institut für Analytische Wissenschaften—ISAS—e.V., Dortmund, Germany
- *Correspondence: E. Tolstik, elen.tolstik@isas; L. A. Osminkina, ; K. Lorenz,
| | - M. B. Gongalsky
- Lomonosov Moscow State University, Faculty of Physics, Moscow, Russia
| | - J. Dierks
- Leibniz-Institut für Analytische Wissenschaften—ISAS—e.V., Dortmund, Germany
| | - T. Brand
- Institute of Pharmacology and Toxicology, University of Würzburg, Würzburg, Germany
| | - M. Pernecker
- Leibniz-Institut für Analytische Wissenschaften—ISAS—e.V., Dortmund, Germany
| | - N. V. Pervushin
- Lomonosov Moscow State University, Faculty of Medicine, Moscow, Russia
| | - D. E. Maksutova
- Lomonosov Moscow State University, Faculty of Physics, Moscow, Russia
| | - K. A. Gonchar
- Lomonosov Moscow State University, Faculty of Physics, Moscow, Russia
| | - J. V. Samsonova
- Lomonosov Moscow State University, Faculty of Chemistry, Moscow, Russia
| | - G. Kopeina
- Lomonosov Moscow State University, Faculty of Medicine, Moscow, Russia
| | - V. Sivakov
- Leibniz Institute of Photonic Technology, Department Functional Interfaces, Jena, Germany
| | - L. A. Osminkina
- Lomonosov Moscow State University, Faculty of Physics, Moscow, Russia
- Institute for Biological Instrumentation of Russian Academy of Sciences, Moscow, Russia
- *Correspondence: E. Tolstik, elen.tolstik@isas; L. A. Osminkina, ; K. Lorenz,
| | - K. Lorenz
- Leibniz-Institut für Analytische Wissenschaften—ISAS—e.V., Dortmund, Germany
- Institute of Pharmacology and Toxicology, University of Würzburg, Würzburg, Germany
- Comprehensive Heart Failure Center, University Hospital of Würzburg, Würzburg, Germany
- *Correspondence: E. Tolstik, elen.tolstik@isas; L. A. Osminkina, ; K. Lorenz,
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Gomes FDR, de Brito DCC, de Sá NAR, Ñaupas LVS, Palomino GJQ, da Silva RF, Lopes ÉPF, Mbemya GT, Alves BG, Zelinski M, de Figueiredo JR, Rodrigues APR. Development of sheep secondary follicles and preservation of aromatase and metalloproteinases 2 and 9 after vitrification and in vitro culture. Cell Tissue Bank 2022; 23:247-259. [PMID: 34152507 DOI: 10.1007/s10561-021-09937-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 05/28/2021] [Indexed: 12/24/2022]
Abstract
The cryopreservation of secondary follicles (SF) is a promising alternative to preserve the reproductive potential both in humans and animals in situations in which the transplantation of ovarian tissue is not possible. The objective of the present study was cryopreserved SF isolated sheep. Beyond follicular morphology, viability and development, we investigated proteins related to steroidogenic function and basement membrane remodeling [metalloproteinases 2 (MMP-2) and 9 (MMP-9)] in fresh SF (FSF) and vitrified SF (VSF) followed by in vitro culture for 6 (D6) or 12 days (D12). The percentage of intact follicles, follicular and oocyte diameter of the VSF were lower than FSF on both days of culture (P < 0.05). The VSF viability was statistically reduced from D6 (95.5%) to D12 (77.3%) but did not differ from the FSF on both days (D6:96.2% to D12:86.5%). Antrum formation in the VSF (D6: 59.13%; D12: 79.56%) was significantly lower than the FSF (D6: 79.61%; D12: 92.23%). However, an increase in this percentage was observed from D6 to D12 in both groups. Aromatase showed stronger labeling on FSF D6 and VSF D12 compared to other treatments (P < 0.05). MMP-2 showed a similar pattern of labeling in FSF D6 and VSF D12, similarly to that observed in FSF D12 and VSF D6. MMP-9 was similar in FSF and VSF cultivated for 6 and 12 days. In conclusion, VSF are able to grow and develop during 12 days of in vitro culture and showed evidence of preservation of steroidogenic function and remodeling of the basement membrane.
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Affiliation(s)
- Francisco Denilson Rodrigues Gomes
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles (LAMOFOPA), Faculty of Veterinary, State University of Ceará, Av. Dr. Silas Munguba, 1700, Fortaleza, CE, CEP: 60714-903, Brazil
| | - Danielle Cristina Calado de Brito
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles (LAMOFOPA), Faculty of Veterinary, State University of Ceará, Av. Dr. Silas Munguba, 1700, Fortaleza, CE, CEP: 60714-903, Brazil
| | - Naíza Arcângela Ribeiro de Sá
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles (LAMOFOPA), Faculty of Veterinary, State University of Ceará, Av. Dr. Silas Munguba, 1700, Fortaleza, CE, CEP: 60714-903, Brazil
| | - Lucy Vanessa Sulca Ñaupas
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles (LAMOFOPA), Faculty of Veterinary, State University of Ceará, Av. Dr. Silas Munguba, 1700, Fortaleza, CE, CEP: 60714-903, Brazil
| | - Gaby Judith Quispe Palomino
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles (LAMOFOPA), Faculty of Veterinary, State University of Ceará, Av. Dr. Silas Munguba, 1700, Fortaleza, CE, CEP: 60714-903, Brazil
| | - Renato Felix da Silva
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles (LAMOFOPA), Faculty of Veterinary, State University of Ceará, Av. Dr. Silas Munguba, 1700, Fortaleza, CE, CEP: 60714-903, Brazil
| | - Éverton Pimentel Ferreira Lopes
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles (LAMOFOPA), Faculty of Veterinary, State University of Ceará, Av. Dr. Silas Munguba, 1700, Fortaleza, CE, CEP: 60714-903, Brazil
| | - Gildas Tetaping Mbemya
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles (LAMOFOPA), Faculty of Veterinary, State University of Ceará, Av. Dr. Silas Munguba, 1700, Fortaleza, CE, CEP: 60714-903, Brazil
| | | | - Mary Zelinski
- Oregon National Primate Research Center, Beaverton, OR, USA
| | - José Ricardo de Figueiredo
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles (LAMOFOPA), Faculty of Veterinary, State University of Ceará, Av. Dr. Silas Munguba, 1700, Fortaleza, CE, CEP: 60714-903, Brazil
| | - Ana Paula Ribeiro Rodrigues
- Laboratory of Manipulation of Oocytes and Ovarian Pre-Antral Follicles (LAMOFOPA), Faculty of Veterinary, State University of Ceará, Av. Dr. Silas Munguba, 1700, Fortaleza, CE, CEP: 60714-903, Brazil.
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10
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Glutamine Maintains Satellite Glial Cells Growth and Survival in Culture. Neurochem Res 2022; 47:3635-3646. [PMID: 35522367 DOI: 10.1007/s11064-022-03614-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 04/10/2022] [Accepted: 04/19/2022] [Indexed: 10/18/2022]
Abstract
Satellite glial cells (SGCs) tightly surround neurons and modulate sensory transmission in dorsal root ganglion (DRG). At present, the biological property of primary SGCs in culture deserves further investigation. To reveal the key factor for SGCs growth and survival, we examined the effects of different culture supplementations containing Dulbecco's Modified Eagle Medium (DMEM)/F12, DMEM high glucose (HG) or Neurobasal-A (NB). CCK-8 proliferation assay showed an increased proliferation of SGCs in DMEM/F12 and DMEM/HG, but not in NB medium. Bax, AnnexinV, and propidium iodide (PI) staining results showed that NB medium caused cell death and apoptosis. We showed that glutamine was over 2.5 mM in DMEM/F12 and DMEM/HG, whereas it was absence in NB medium. Interestingly, exogenous glutamine application significantly reversed the poor proliferation and cell death of SGCs in NB medium. These findings demonstrated that DMEM/F12 medium was optimal to get high-purity SGCs. Glutamine was the key molecule to maintain SGCs growth and survival in culture. Here, we provided a novel approach to get high-purity SGCs by changing the key component of culture medium. Our study shed a new light on understanding the biological property and modulation of glial cells of primary sensory ganglia.
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11
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Synthetic Design and Biological Evaluation of New p53-MDM2 Interaction Inhibitors Based on Imidazoline Core. Pharmaceuticals (Basel) 2022; 15:ph15040444. [PMID: 35455441 PMCID: PMC9027661 DOI: 10.3390/ph15040444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/23/2022] [Accepted: 03/26/2022] [Indexed: 11/25/2022] Open
Abstract
The use of p53-MDM2 inhibitors is a prospective strategy in anti-cancer therapy for tumors expressing wild type p53 protein. In this study, we have applied a simple approach of two-step synthesis of imidazoline-based alkoxyaryl compounds, which are able to efficiently inhibit p53-MDM2 protein–protein interactions, promote accumulation of p53 and p53-inducible proteins in various cancer cell lines. Compounds 2l and 2k cause significant upregulation of p53 and p53-inducible proteins in five human cancer cell lines, one of which possesses overexpression of MDM2.
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12
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A Novel Pyroptosis-Related Prognostic Signature for Risk Stratification and Clinical Prognosis in Clear Cell Renal Cell Carcinoma. DISEASE MARKERS 2022; 2022:8093837. [PMID: 35308143 PMCID: PMC8927973 DOI: 10.1155/2022/8093837] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/14/2022] [Accepted: 02/17/2022] [Indexed: 01/12/2023]
Abstract
Emerging research has substantiated that pyroptosis-related biomarkers were mightily related to the clinical outcome of patients with clear cell renal cell carcinoma (ccRCC). However, a single-gene biomarker's moderate predictive power is insufficient, and more accurate prognostic models are urgently needed. We conducted this investigation in order to develop a robust pyroptosis-related gene signature for use in risk stratification and survival prognosis in colorectal cancer. We downloaded transcriptomic data and survival information of ccRCC patients from TCGA. Bioinformatic methods were used to generate a pyroptosis-related gene signature based on data from TCGA training cohort. ROC curve, uni- and multivariate regression analyses were used for the prognostic assays. What is more, we explored the relationship between model-based risk score and the tumor microenvironment. Herein, 11 pyroptosis-related hub genes (CASP9, TUBB6, NFKB1, BNIP3, CAPN1, CD14, PRDM1, BST2, SDHB, TFAM, and GSDMB) were determined as risk signature for risk stratification and prognosis prediction for ccRCC. Kaplan-Meier curves, ROC curves, and risk plots were employed to analyze and verify its performance in all groups. Multivariate assays exhibited that risk score could be an independent prognostic factor for patients' OS. ESTIMATE algorithm showed a higher immune score in the group of high-risk. Overall, a novel pyroptosis-related gene signature generated can be employed for prognosis prediction of ccRCC patients. This may assist in individual treatment of clinical decision-making.
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13
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Pyroptosis-related lncRNAs are potential biomarkers for predicting prognoses and immune responses in patients with UCEC. MOLECULAR THERAPY. NUCLEIC ACIDS 2022; 27:1036-1055. [PMID: 35228898 PMCID: PMC8844853 DOI: 10.1016/j.omtn.2022.01.018] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 01/21/2022] [Indexed: 12/21/2022]
Abstract
Uterine corpus endometrial carcinoma (UCEC) is a malignant disease globally, and there is no unified prognostic signature at present. In our study, two clusters were identified. Cluster 1 showed better prognosis and higher infiltration level, such as tumor microenvironment (TME), tumor mutation burden (TMB), and immune checkpoint genes expression. Gene set enrichment analysis (GSEA) indicated that some tumor-related pathways and immune-associated pathways were exposed. What is more, six pyroptosis-related long noncoding RNAs (lncRNAs) (PRLs) were applied to establish a prognostic signature through multiple Cox regression analysis. In both training and testing sets, patients with higher risk score had poorer survival than patients with low risk. The area under the curve (AUC) of receiver operating characteristic (ROC) curves performed that the survival probability was better in people with lower risk score. Mechanism analysis revealed that high risk score was correlated with reduced immune infiltration and T cells exhaustion, matching the definition of an "immune-desert" phenotype. Patients with lower risk score were characterized by higher immune checkpoint gene expression and TMB and have a sensitive response to immunotherapy and chemotherapy compared with patients with high risk score. The signature has accurate prediction ability of UCEC and is a promising therapeutic target to improve the effect of immunotherapy.
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14
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Ramšak Ž, Modic V, Li RA, vom Berg C, Zupanic A. From Causal Networks to Adverse Outcome Pathways: A Developmental Neurotoxicity Case Study. FRONTIERS IN TOXICOLOGY 2022; 4:815754. [PMID: 35295214 PMCID: PMC8915909 DOI: 10.3389/ftox.2022.815754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/31/2022] [Indexed: 11/15/2022] Open
Abstract
The last decade has seen the adverse outcome pathways (AOP) framework become one of the most powerful tools in chemical risk assessment, but the development of new AOPs remains a slow and manually intensive process. Here, we present a faster approach for AOP generation, based on manually curated causal toxicological networks. As a case study, we took a recently published zebrafish developmental neurotoxicity network, which contains causally connected molecular events leading to neuropathologies, and developed two new adverse outcome pathways: Inhibition of Fyna (Src family tyrosine kinase A) leading to increased mortality via decreased eye size (AOP 399 on AOP-Wiki) and GSK3beta (Glycogen synthase kinase 3 beta) inactivation leading to increased mortality via defects in developing inner ear (AOP 410). The approach consists of an automatic separation of the toxicological network into candidate AOPs, filtering the AOPs according to available evidence and length as well as manual development of new AOPs and weight-of-evidence evaluation. The semiautomatic approach described here provides a new opportunity for fast and straightforward AOP development based on large network resources.
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Affiliation(s)
- Živa Ramšak
- Department of Biotechnology and Systems Biology, National Institute of Biology, Ljubljana, Slovenia
| | - Vid Modic
- Department of Biotechnology and Systems Biology, National Institute of Biology, Ljubljana, Slovenia
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia
| | - Roman A. Li
- Department of Environmental Toxicology, Eawag—Swiss Federal Institute of Aquatic Science and Technology, Duebendorf, Switzerland
| | - Colette vom Berg
- Department of Environmental Toxicology, Eawag—Swiss Federal Institute of Aquatic Science and Technology, Duebendorf, Switzerland
| | - Anze Zupanic
- Department of Biotechnology and Systems Biology, National Institute of Biology, Ljubljana, Slovenia
- *Correspondence: Anze Zupanic,
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15
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Raina R, Almutary AG, Bagabir SA, Afroze N, Fagoonee S, Haque S, Hussain A. Chrysin Modulates Aberrant Epigenetic Variations and Hampers Migratory Behavior of Human Cervical (HeLa) Cells. Front Genet 2022; 12:768130. [PMID: 35096000 PMCID: PMC8790538 DOI: 10.3389/fgene.2021.768130] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 12/06/2021] [Indexed: 12/27/2022] Open
Abstract
Purpose: Plant-derived phytochemicals have shown epigenetic modulatory effect in different types of cancer by reversing the pattern of DNA methylation and chromatin modulation, thereby restoring the function of silenced tumor-suppressor genes. In the present study, attempts have been made to explore chrysin-mediated epigenetic alterations in HeLa cells. Methods: Colony formation and migration assays followed by methylation-specific PCR for examining the methylation status of CpG promoters of various tumor-suppressor genes (TSGs) and the expression of these TSGs at the transcript and protein levels were performed. Furthermore, global DNA methylation; biochemical activities of DNA methyltransferases (DNMTs), histone methyl transferases (HMTs), histone deacetylases (HDACs), and histone acetyl transferases (HATs) along with the expression analysis of chromatin-modifying enzymes; and H3 and H4 histone modification marks analyses were performed after chrysin treatment. Results: The experimental analyses revealed that chrysin treatment encourages cytostatic behavior as well as inhibits the migration capacity of HeLa cells in a time- and dose-dependent manner. Chrysin reduces the methylation of various tumor-suppressor genes, leading to their reactivation at mRNA and protein levels. The expression levels of various chromatin-modifying enzymes viz DNMTs, HMTs, HDACs, and HATS were found to be decreased, and H3 and H4 histone modification marks were modulated too. Also, reduced global DNA methylation was observed following the treatment of chrysin. Conclusion: This study concludes that chrysin can be used as a potential epigenetic modifier for cancer treatment and warrants for further experimental validation.
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Affiliation(s)
- Ritu Raina
- School of Life Sciences, Manipal Academy of Higher Education, Dubai, United Arab Emirates
| | - Abdulmajeed G Almutary
- Department of Medical Biotechnology, College of Applied Medical Sciences, Qassim University, Saudi Arabia
| | - Sali Abubaker Bagabir
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia
| | - Nazia Afroze
- School of Life Sciences, Manipal Academy of Higher Education, Dubai, United Arab Emirates
| | - Sharmila Fagoonee
- Molecular Biotechnology Center, Institute of Biostructure and Bioimaging (CNR), Turin, Italy
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan, Saudi Arabia.,Bursa Uludağ University Faculty of Medicine, Görükle Campus, Bursa, Turkey
| | - Arif Hussain
- School of Life Sciences, Manipal Academy of Higher Education, Dubai, United Arab Emirates
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16
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Green and cost-effective synthesis of 2D and 3D Graphene-based nanomaterials from Drepanostachyum falcatum for Bio-imaging and Water purification applications. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2022.100265] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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17
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Al Mamun A, Mimi AA, Aziz MA, Zaeem M, Ahmed T, Munir F, Xiao J. Role of pyroptosis in cancer and its therapeutic regulation. Eur J Pharmacol 2021; 910:174444. [PMID: 34453928 DOI: 10.1016/j.ejphar.2021.174444] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/26/2021] [Accepted: 08/24/2021] [Indexed: 02/07/2023]
Abstract
Pyroptosis is mainly considered a gasdermin-regulated cell death mechanism characterized by cellular lysis and the release of several pro-inflammatory factors. Nowadays, pyroptosis has notably been gained extensive attention from clinicians and researchers. However, current studies report that downregulation of pyroptosis-mediated cell death plays a significant role in developing multiple cancers. Increasing studies also suggest that pyroptosis can impact all stages of carcinogenesis. Inducing pyroptotic cellular death could be a promising therapeutic option for managing and regulating multiple cancers in the near future. Our current review highlights the molecular and morphological features of pyroptosis and its potential roles in various cancers. In addition, we have also highlighted the biological characteristics and significances of GSDMD and GSDME and their critical functions in cancer progression, management and regulation.
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Affiliation(s)
- Abdullah Al Mamun
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China.
| | - Anjuman Ara Mimi
- Department of Pharmacy, Daffodil International University, Dhanmondi-27, Dhaka, 1209, Bangladesh
| | - Md Abdul Aziz
- Department of Pharmacy, Faculty of Science, Noakhali Science and Technology University, Noakhali, 3814, Bangladesh; Laboratory of Pharmacogenomics and Molecular Biology, Department of Pharmacy, Noakhali Science and Technology University, Noakhali, 3814, Bangladesh
| | - Muhammad Zaeem
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China
| | - Tanvir Ahmed
- Department of Nutrition, Chung Shan Medical University, 110, Section 1, Jianguo North Road, Taichung, 40201, Taiwan
| | - Fahad Munir
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China
| | - Jian Xiao
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China; Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China.
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18
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Bazanov DR, Pervushin NV, Savin EV, Tsymliakov MD, Maksutova AI, Sosonyuk SE, Kopeina GS, Lozinskaya NA. Sulfonamide derivatives of cis-imidazolines as potent p53-MDM2/MDMX protein-protein interaction inhibitors. Med Chem Res 2021. [DOI: 10.1007/s00044-021-02802-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Pál M, Szalai G, Lantos E, Nagyéri G, Janda T. Comparative study of salicylic acid contents in young wheat and rice plants and their anticancer activities in HepG2 and Caco-2 cells. Biol Futur 2021; 71:265-271. [PMID: 34554506 DOI: 10.1007/s42977-020-00026-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/15/2020] [Indexed: 11/29/2022]
Abstract
Some recent results reported that aspirin (acetylsalicylic acid) had a positive effect on the treatment of certain types of cancer. However, the results cannot be generalized and it is not always clear whether it is a direct anticancer effect or a general health effect. Since plants produce different amounts of salicylic acid, we have sought a relationship between the salicylic acid content of some plant extracts and their anticancer activity. Growing of wheat and rice plants were carried out under controlled conditions. The salicylic acid content was determined by high-performance liquid chromatography. The viability and cell cycle assays were performed on HepG2 and Caco-2 cell lines. Despite the high content of salicylic acid, the extracts from rice plants did not show significant anticancer activity. In spite of the low salicylic acid content, the positive effect of wheat germ was confirmed in both tests. There is no direct relationship between the salicylic acid content of the plant extracts and their anticancer activity. However, it has been proven that young wheat germ is more effective than mature leaf.
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Affiliation(s)
- Magda Pál
- Department of Plant Physiology, Agricultural Institute, Centre for Agricultural Research, Brunszvik u. 2, Martonvásár, 2462, Hungary
| | - Gabriella Szalai
- Department of Plant Physiology, Agricultural Institute, Centre for Agricultural Research, Brunszvik u. 2, Martonvásár, 2462, Hungary
| | - Erika Lantos
- SOFTFLOW Ltd., Kedves u. 20, Pécs, 7628, Hungary
| | | | - Tibor Janda
- Department of Plant Physiology, Agricultural Institute, Centre for Agricultural Research, Brunszvik u. 2, Martonvásár, 2462, Hungary.
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20
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Gongalsky MB, Muftieva DA, Saarinen JKS, Isomaki A, Pervushin NV, Kopeina GS, Peltonen LJ, Strachan CJ, Zhivotovsky B, Santos HA, Osminkina LA. Nonresonant CARS Imaging of Porous and Solid Silicon Nanoparticles in Human Cells. ACS Biomater Sci Eng 2021; 8:4185-4195. [PMID: 34553922 DOI: 10.1021/acsbiomaterials.1c00771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Coherent anti-Stokes Raman scattering (CARS), a nonlinear optical method for rapid visualization of biological objects, represents a progressive tool in biology and medicine to explore cells and tissue structures in living systems and biopsies. In this study, we report efficient nonresonant CARS imaging of silicon nanoparticles (SiNPs) in human cells as a proof of concept. As both bulk and porous silicon exhibit a high third-order nonlinear susceptibility, χ(3), which is responsible for the CARS intensity, it is possible to visualize the SiNPs without specific labels. Porous and solid SiNPs were obtained from layers of porous and nonporous silicon nanowires and mesoporous silicon. Electron microscopy and Raman spectroscopy showed that porous SiNPs consisted of ∼3 nm silicon nanocrystals (nc-Si) and pores, whereas solid nanoparticles comprised ∼30 nm nc-Si. All types of SiNPs were nontoxic at concentrations up to 500 μg/mL after 24 h of incubation with cells. We demonstrated that although nc-Si possesses a distinguished narrow Raman band of about 520 cm-1, it is possible to detect a high CARS signal from SiNPs in the epi-direction even in a nonresonant regime. 3D CARS images showed that all types of studied SiNPs were visualized as bright spots inside the cytoplasm of cells after 3-6 h of incubation because of the contrast provided by the high third-order nonlinear susceptibility of SiNPs, which is 1 × 104 to 1 × 105 times higher than that of water and typical biological media. Overall, CARS microscopy can provide localization of SiNPs within biological structures at the cellular level and can be a powerful tool for in vitro monitoring of silicon-based drug delivery systems or use SiNPs as labels to monitor various bioprocesses inside living cells.
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Affiliation(s)
- Maxim B Gongalsky
- Lomonosov Moscow State University, Faculty of Physics, Leninskie Gory 1, Moscow 119991, Russian Federation
| | - Daniela A Muftieva
- Lomonosov Moscow State University, Faculty of Physics, Leninskie Gory 1, Moscow 119991, Russian Federation
| | - Jukka K S Saarinen
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki FI-00014, Finland
| | - Antti Isomaki
- Biomedicum Imaging Unit, Faculty of Medicine, University of Helsinki, Haartmaninkatu 8 (PO Box 63), Helsinki 00014, Finland
| | - Nikolay V Pervushin
- Faculty of Fundamental Medicine, Lomonosov Moscow State University, Leninskie Gory 1, Moscow 119991, Russian Federation
| | - Gelina S Kopeina
- Faculty of Fundamental Medicine, Lomonosov Moscow State University, Leninskie Gory 1, Moscow 119991, Russian Federation
| | - Leena J Peltonen
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki FI-00014, Finland
| | - Clare J Strachan
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki FI-00014, Finland
| | - Boris Zhivotovsky
- Faculty of Fundamental Medicine, Lomonosov Moscow State University, Leninskie Gory 1, Moscow 119991, Russian Federation.,Institute of Environmental Medicine, Division of Toxicology, Karolinska Institutet, Box 210, Stockholm SE-171 77, Sweden
| | - Hélder A Santos
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki FI-00014, Finland.,Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki FI-00014, Finland
| | - Liubov A Osminkina
- Lomonosov Moscow State University, Faculty of Physics, Leninskie Gory 1, Moscow 119991, Russian Federation.,Institute for Biological Instrumentation of Russian Academy of Sciences, Pushchino 142290, Moscow Region, Russian Federation
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21
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Chaisit S, Jianmongkol S. Apoptosis Inducing Activity of Rhinacanthin-C in Doxorubicin-Resistant Breast Cancer MCF-7 Cells. Biol Pharm Bull 2021; 44:1239-1246. [PMID: 34471052 DOI: 10.1248/bpb.b21-00015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Rhinacanthin-C is a natural bioactive naphthoquinone ester with potential chemotherapeutic value in cancer treatment. In this study, we investigated its apoptotic induction ability and the involved mechanisms through the mitogen-activated protein kinases (MAPK) and protein kinase B/glycogen synthase kinase-3β/nuclear factor erythroid 2-related factor 2 (Akt/GSK-3β/Nrf2) signaling pathways in doxorubicin-resistant breast cancer MCF-7 (MCF-7/DOX) cells. Our 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay showed that rhinacanthin-C (3-28 µM) significantly decreased the viability of MCF-7/DOX cells and potentiated hydrogen peroxide cytotoxicity. This naphthoquinone was able to increase intracellular reactive oxygen species (ROS), as measured by the 2',7'-dichlorofluorescein diacetate (DCFH-DA) assay. This compound increased the number of apoptotic cells by elevating the ratio of apoptotic checkpoint proteins Bax/Bcl-2 and by decreasing the expression of poly(ADP-ribose) polymerase (PARP) protein. Furthermore, Western blotting analyses showed that treatment with rhinacanthin-C (3-28 µM) for 24 h significantly decreased the expression levels of the phosphorylated forms of MAPK proteins (i.e., extracellular signal regulated protein kinase 1/2 (ERK1/2), c-Jun N-terminal kinases (JNK) and p38), Akt, GSK-3β and Nrf2 proteins in MCF-7/DOX cells. Inhibition of the Akt/GSK-3β/Nrf2 pathway led to a significant reduction in heme oxygenase-1 (HO-1) and reduced nicotinamide adenine dinucleotide phosphate (NADP)(H): quinone oxidoreductase 1 (NQO1) proteins. These findings suggested that rhinacanthin-C was able to induce apoptosis in MCF-7/DOX cells through increased ROS production and suppression of the cell survival systems mediated by the MAPKs and Akt/GSK-3β/Nrf2 signaling pathways.
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Affiliation(s)
- Suwichak Chaisit
- Inter-Department Program of Pharmacology, Graduate School, Chulalongkorn University
| | - Suree Jianmongkol
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Science, Chulalongkorn University
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22
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Optical Monitoring of the Biodegradation of Porous and Solid Silicon Nanoparticles. NANOMATERIALS 2021; 11:nano11092167. [PMID: 34578485 PMCID: PMC8466475 DOI: 10.3390/nano11092167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/21/2021] [Accepted: 08/22/2021] [Indexed: 12/28/2022]
Abstract
Silicon nanoparticles (SiNP) are currently of great interest, especially in biomedicine, because of their unique physicochemical properties combined with biodegradability. SiNPs can be obtained in various ways and can have either a non-porous solid (sol-) or porous (por-) structure. In this work, we carry out detailed optical monitoring of sol- and por-SiNP biodegradation using Raman and photoluminescence (PL) micro-spectroscopy. SiNPs were obtained by ultrasound grinding of sol- or por-silicon nanowires, created by silver-assisted chemical etching of crystalline Si with different doping levels. In this case, sol-SiNPs consist of nanocrystals 30 nm in size, while por-SiNPs consist of small 3 nm nanocrystals and 16 nm pores. Both SiNPs show low in vitro cytotoxicity towards MCF-7 and HEK293T cells up to 800 μg/mL. The appearance of the F-band (blue–yellow) PL, as well as a decrease in the intensity of the Raman signal, indicate the gradual dissolution of the sol-SiNPs during 20 days of incubation. At the same time, the rapid dissolution of por-SiNP within 24 h is identified by the quenching of their S-band (red) PL and the disappearance of the Raman signal. The obtained results are important for development of intelligent biodegradable drug delivery systems based on SiNPs.
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23
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Sharma VK, Singh TG, Singh S, Garg N, Dhiman S. Apoptotic Pathways and Alzheimer's Disease: Probing Therapeutic Potential. Neurochem Res 2021; 46:3103-3122. [PMID: 34386919 DOI: 10.1007/s11064-021-03418-7] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/02/2021] [Accepted: 08/03/2021] [Indexed: 12/17/2022]
Abstract
Apoptosis is an intrinsic biochemical, cellular process that regulates cell death and is crucial for cell survival, cellular homeostasis, and maintaining the optimum functional status. Apoptosis in a predetermined and programmed manner regulates several molecular events, including cell turnover, embryonic development, and immune system functions but may be the exclusive contributor to several disorders, including neurodegenerative manifestations, when it functions in an aberrant and disorganized manner. Alzheimer's disease (AD) is a fatal, chronic neurodegenerative disorder where apoptosis has a compelling and divergent role. The well-characterized pathological features of AD, including extracellular plaques of amyloid-beta, intracellular hyperphosphorylated tangles of tau protein (NFTs), inflammation, mitochondrial dysfunction, oxidative stress, and excitotoxic cell death, also instigate an abnormal apoptotic cascade in susceptible brain regions (cerebral cortex, hippocampus). The apoptotic players in these regions affect cellular organelles (mitochondria and endoplasmic reticulum), interact with trophic factors, and several pathways, including PI3K/AKT, JNK, MAPK, mTOR signalling. This dysregulated apoptotic cascade end with an abnormal neuronal loss which is a primary event that may precede the other events of AD progression and correlates well with the degree of dementia. The present review provides insight into the diverse and versatile apoptotic mechanisms that are indispensable for neuronal survival and constitute an integral part of the pathological progression of AD. Identification of potential targets (restoring apoptotic and antiapoptotic balance, caspases, TRADD, RIPK1, FADD, TNFα, etc.) may be valuable and advantageous to decide the fate of neurons and to develop potential therapeutics for treatment of AD.
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Affiliation(s)
- Vivek Kumar Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, 140401, India.,Government College of Pharmacy, Rohru, District Shimla, Himachal Pradesh, 171207, India
| | | | - Shareen Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, 140401, India
| | - Nikhil Garg
- Chitkara College of Pharmacy, Chitkara University, Punjab, 140401, India
| | - Sonia Dhiman
- Chitkara College of Pharmacy, Chitkara University, Punjab, 140401, India
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24
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Oo Y, Nealiga JQL, Suwanborirux K, Chamni S, Ecoy GAU, Pongrakhananon V, Chanvorachote P, Chaotham C. 22-O-(N-Boc-L-glycine) ester of renieramycin M inhibits migratory activity and suppresses epithelial-mesenchymal transition in human lung cancer cells. J Nat Med 2021; 75:949-966. [PMID: 34287745 DOI: 10.1007/s11418-021-01549-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 07/04/2021] [Indexed: 12/19/2022]
Abstract
The incidence of metastasis stage crucially contributes to high recurrence and mortality rate in lung cancer patients. Unfortunately, no available treatment inhibits migration, a key metastasis process in lung cancer. In this study, the effect of 22-O-(N-Boc-L-glycine) ester of renieramycin M (22-Boc-Gly-RM), a semi-synthetic amino ester derivative of bistetrahydroisoquinolinequinone alkaloid isolated from Xestospongia sp., on migratory behavior of human lung cancer cells was investigated. Following 24 h of treatment, 22-Boc-Gly-RM at non-toxic concentrations (0.5-1 μM) effectively restrained motility of human lung cancer H460 cells assessed through wound healing, transwell migration, and multicellular spheroid models. The capability to invade through matrix component was also repressed in H460 cells cultured with 0.1-1 µM 22-Boc-Gly-RM. The dose-dependent reduction of phalloidin-stained actin stress fibers corresponded with the downregulated Rac1-GTP level presented via western blot analysis in 22-Boc-Gly-RM-treated cells. Treatment with 0.1-1 μM of 22-Boc-Gly-RM obviously caused suppression of p-FAK/p-Akt signal and consequent inhibition of epithelial-to-mesenchymal transition (EMT), which was evidenced with augmented level of E-cadherin and reduction of N-cadherin expression. The alteration of invasion-related proteins in 22-Boc-Gly-RM-treated H460 cells was indicated by the diminution of matrix metalloproteinases (MT1-MMP, MMP-2, MMP-7, and MMP-9), as well as the upregulation of tissue inhibitors of metalloproteinases (TIMP), TIMP2, and TIMP3. Thus, 22-Boc-Gly-RM is a promising candidate for anti-metastasis treatment in lung cancer through inhibition of migratory features associated with suppression on EMT.
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Affiliation(s)
- Yamin Oo
- Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Justin Quiel Lasam Nealiga
- Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Khanit Suwanborirux
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Supakarn Chamni
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand.,Natural Products and Nanoparticles Research Unit (NP2), Chulalongkorn University, Bangkok, 10330, Thailand
| | - Gea Abigail Uy Ecoy
- Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand.,Department of Pharmacy, School of Health Care Professions, University of San Carlos, 6000, Cebu, Philippines
| | - Varisa Pongrakhananon
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Pithi Chanvorachote
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand.,Cell-Based Drug and Health Products Development Research Unit, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Chatchai Chaotham
- Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand. .,Cell-Based Drug and Health Products Development Research Unit, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand.
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25
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Ghadaksaz A, Imani Fooladi AA, Mahmoodzadeh Hosseini H, Nejad Satari T, Amin M. ARA-linker-TGFαL3: a novel chimera protein to target breast cancer cells. Med Oncol 2021; 38:96. [PMID: 34273028 DOI: 10.1007/s12032-021-01546-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 07/05/2021] [Indexed: 10/20/2022]
Abstract
Targeted cancer therapies based on overexpressed receptors and the fractions containing immunotoxins and bacterial metabolites are one of the well-known methods to overcome the chemotherapy resistance of cancer cells. In this paper, we designed ARA-linker-TGFαL3, using Arazyme, a Serratia proteamaculans metabolite, and a third loop segment of TGFα to target EGFR-expressing breast cancer cells. After cloning in pET28a (+), the expression of recombinant protein was optimized in Escherichia coli strain BL21 (DE3). MDA-MB-468 (EGFR positive) and MDA-MB-453 (EGFR negative) breast cancer cell lines were employed. Also, the chemotherapeutic drug, Taxotere (Docetaxel), was employed to compare cytotoxicity effects. Cell ELISA assessed the binding affinity of recombinant proteins to the receptor, and the cytotoxicity was detected by MTT and lactate dehydrogenase release assays. The interfacing with cancer cell adhesion was evaluated. Furthermore, the induction of apoptosis was examined utilizing flow cytometric analysis, and caspase-3 activity assay. Moreover, RT-PCR was conducted to study the expression of apoptosis (bax, bcl2, and casp3), angiogenesis (vegfr2), and metastasis (mmp2 and mmp9) genes. ARA-linker-TGFαL3 revealed a higher binding affinity, cytotoxicity, and early apoptosis induction in MDA-MB-468 cells compared to the effects of Arazyme while both recombinant proteins showed similar effects on MDA-MB-453. In addition, the Taxotere caused the highest cytotoxicity on cancer cells through induction of late apoptosis. Meanwhile, the expression of angiogenesis and metastasis genes was decreased in both cell lines after treatment with either ARA-linker-TGFαL3 or Arazyme. Our in vitro results indicated the therapeutic effect of ARA-linker-TGFαL3 on breast cancer cells.
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Affiliation(s)
- Abdolamir Ghadaksaz
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Abbas Ali Imani Fooladi
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
| | - Hamideh Mahmoodzadeh Hosseini
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Taher Nejad Satari
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mohsen Amin
- Department of Drug and Food Control, Faculty of Pharmacy, and The Institute of Pharmaceutical Sciences, Tehran University of Medical Sciences, Tehran, Iran
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26
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Tabernilla A, dos Santos Rodrigues B, Pieters A, Caufriez A, Leroy K, Van Campenhout R, Cooreman A, Gomes AR, Arnesdotter E, Gijbels E, Vinken M. In Vitro Liver Toxicity Testing of Chemicals: A Pragmatic Approach. Int J Mol Sci 2021; 22:5038. [PMID: 34068678 PMCID: PMC8126138 DOI: 10.3390/ijms22095038] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/04/2021] [Accepted: 05/05/2021] [Indexed: 02/07/2023] Open
Abstract
The liver is among the most frequently targeted organs by noxious chemicals of diverse nature. Liver toxicity testing using laboratory animals not only raises serious ethical questions, but is also rather poorly predictive of human safety towards chemicals. Increasing attention is, therefore, being paid to the development of non-animal and human-based testing schemes, which rely to a great extent on in vitro methodology. The present paper proposes a rationalized tiered in vitro testing strategy to detect liver toxicity triggered by chemicals, in which the first tier is focused on assessing general cytotoxicity, while the second tier is aimed at identifying liver-specific toxicity as such. A state-of-the-art overview is provided of the most commonly used in vitro assays that can be used in both tiers. Advantages and disadvantages of each assay as well as overall practical considerations are discussed.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Mathieu Vinken
- Department of Pharmaceutical and Pharmacological Sciences, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Brussels, Belgium; (A.T.); (B.d.S.R.); (A.P.); (A.C.); (K.L.); (R.V.C.); (A.C.); (A.R.G.); (E.A.); (E.G.)
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27
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Role of pyroptosis in diabetic retinopathy and its therapeutic implications. Eur J Pharmacol 2021; 904:174166. [PMID: 33979651 DOI: 10.1016/j.ejphar.2021.174166] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/05/2021] [Accepted: 05/05/2021] [Indexed: 12/16/2022]
Abstract
Pyroptosis has recently been established as a term of programmed-inflammatory cell death. Pyroptosis is mainly divided into two molecular signaling pathways, including caspase-1-dependent canonical and caspase-4/5/11-dependent non-canonical inflammasome pathways. Extensive investigations have reported inflammasome activation facilitates the maturation and secretion of the inflammatory factors interleukin-1β/18 (IL-1β/18), cleavage of gasdermin D (GSDMD), and leading to the stimulation of pyroptosis-mediated cell death. Furthermore, accumulating studies report NLRP3 inflammasome activation plays a significant role in triggering the pyroptosis-mediated cell death and promotes the pathogenesis of diabetic retinopathy (DR). Our current review elaborates on the molecular mechanisms of pyroptosis-signaling pathways and their potential roles in the pathogenesis and impact of DR development. We also emphasize several investigational molecules regulating key steps in pyroptotic-cell death to create new comprehensions and findings to explore the pathogenesis of DR advancement. Our narrative review concisely suggests these potential pharmacological agents could be promising therapies to treat and manage DR in the future.
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28
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N-Acetyl-L-cysteine and aminooxyacetic acid differentially modulate trichloroethylene reproductive toxicity via metabolism in Wistar rats. Arch Toxicol 2021; 95:1303-1321. [PMID: 33599830 DOI: 10.1007/s00204-021-02991-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 01/21/2021] [Indexed: 10/22/2022]
Abstract
Exposure to the industrial solvent trichloroethylene (TCE) has been associated with adverse pregnancy outcomes in humans and decreased fetal weight in rats. TCE kidney toxicity can occur through formation of reactive metabolites via its glutathione (GSH) conjugation metabolic pathway, largely unstudied in the context of pregnancy. To investigate the contribution of the GSH conjugation pathway and oxidative stress to TCE toxicity during pregnancy, we exposed rats orally to 480 mg TCE/kg/day from gestational day (GD) 6 to GD 16 with and without N-acetyl-L-cysteine (NAC) at 200 mg/kg/day or aminooxyacetic acid (AOAA) at 20 mg/kg/day as pre/co-treatments from GD 5-16. NAC is a reactive oxygen species scavenger that modifies the GSH conjugation pathway, and AOAA is an inhibitor of cysteine conjugate β-lyase (CCBL) in the GSH conjugation pathway. TCE decreased fetal weight, and this was prevented by AOAA but not NAC pre/co-treatment to TCE. Although AOAA inhibited CCBL activity in maternal kidney, it did not inhibit CCBL activity in maternal liver and placenta, suggesting that AOAA prevention of TCE-induced decreased fetal weight was due to CCBL activity inhibition in the kidneys but not liver or placenta. Unexpectedly, NAC pre/co-treatment with TCE, relative to TCE treatment alone, altered placental morphology consistent with delayed developmental phenotype. Immunohistochemical staining revealed that the decidua basale, relative to basal and labyrinth zones, expressed the highest abundance of CCBL1, flavin-containing monooxygenase 3, and cleaved caspase-3. Together, the findings show the differential effects of NAC and AOAA on TCE-induced pregnancy outcomes are likely attributable to TCE metabolism modulation.
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29
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Zhan WL, Gao N, Tu GL, Tang H, Gao L, Xia Y. LncRNA LINC00689 Promotes the Tumorigenesis of Glioma via Mediation of miR-526b-3p/IGF2BP1 Axis. Neuromolecular Med 2021; 23:383-394. [PMID: 33389570 DOI: 10.1007/s12017-020-08635-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 11/22/2020] [Indexed: 12/14/2022]
Abstract
Glioma ranks first among the aggressive brain tumors all over the world. LncRNA LINC00689 has been confirmed to play key roles in the progression of cancers, and LINC00689 was upregulated in glioma. However, the biological function of LINC00689 in glioma is unclear. qRT-PCR was applied to detect the expressions of LINC00689 and miR-526b-3p in glioma cells. Dual-luciferase report was performed to examine the relation among LINC00689, miR-526b-3p, and insulin-like growth factor 2 mRNA-binding protein 1 (IGF2BP1). Then, the growth, migration, and invasion of glioma cells were detected by colony formation, flow cytometry, and transwell assay, respectively. The expressions of p21, cleaved caspase 3, and MAPK signaling-related proteins in glioma cells were tested by western blotting. Finally, xenograft mice model was established to detect the effect of LINC00689 on tumor growth of glioma in vivo. LINC00689 was upregulated in glioma cells, while miR-526b-3p was downregulated. In addition, LINC00689 bound to miR-526b-3p, and IGFBP1 was targeted by miR-526b-3p. Moreover, LINC00689 knockdown or upregulation of miR-526b-3p inhibited the proliferation of glioma cells and induced the apoptosis. Consistently, the migration and invasion of glioma cells were notably reduced by LINC00689 shRNA/miR-526-3p mimics. miR-526b-3p inhibitor or IGF2BP1 upregulation could reverse the effect of LINC00689 knockdown or miR-526b-3p mimics. Finally, knockdown of LINC00689 inhibited the tumor growth of glioma in vivo through regulating miR-526b-3p/IGF2BP1/MAPK axis. In conclusion, silencing of LINC00689 could inhibit the tumorigenesis of glioma via mediation of miR-526b-3p/IGF2BP1 axis. LINC00689 may serve as a new target for the treatment of glioma.
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Affiliation(s)
- Wen-Liang Zhan
- Department of Neurosurgery, Affiliated Haikou Hospital at Xiangya Medical College, Central South University, No.43, People's Avenue, Haidian Island, Haikou, 570208, Hainan Province, People's Republic of China
| | - Ning Gao
- Department of Neurosurgery, Affiliated Haikou Hospital at Xiangya Medical College, Central South University, No.43, People's Avenue, Haidian Island, Haikou, 570208, Hainan Province, People's Republic of China
| | - Guo-Long Tu
- Department of Neurosurgery, Affiliated Haikou Hospital at Xiangya Medical College, Central South University, No.43, People's Avenue, Haidian Island, Haikou, 570208, Hainan Province, People's Republic of China
| | - Hong Tang
- Department of Neurosurgery, Affiliated Haikou Hospital at Xiangya Medical College, Central South University, No.43, People's Avenue, Haidian Island, Haikou, 570208, Hainan Province, People's Republic of China
| | - Ling Gao
- Department of Neurosurgery, Affiliated Haikou Hospital at Xiangya Medical College, Central South University, No.43, People's Avenue, Haidian Island, Haikou, 570208, Hainan Province, People's Republic of China
| | - Ying Xia
- Department of Neurosurgery, Affiliated Haikou Hospital at Xiangya Medical College, Central South University, No.43, People's Avenue, Haidian Island, Haikou, 570208, Hainan Province, People's Republic of China.
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30
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Golubewa L, Timoshchenko I, Romanov O, Karpicz R, Kulahava T, Rutkauskas D, Shuba M, Dementjev A, Svirko Y, Kuzhir P. Single-walled carbon nanotubes as a photo-thermo-acoustic cancer theranostic agent: theory and proof of the concept experiment. Sci Rep 2020; 10:22174. [PMID: 33335210 PMCID: PMC7746693 DOI: 10.1038/s41598-020-79238-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/07/2020] [Indexed: 02/07/2023] Open
Abstract
Theranostics is the emerging field of medicine that uniquely combines diagnostic techniques and active agents to diagnose and treat medical conditions simultaneously or sequentially. Finding a theranostic agent capable to cure the affected cells and being safe for the healthy ones is the key for successful treatment. Here, we demonstrate that agglomerated single-walled carbon nanotubes (SWCNTs) are promising theranostic agent that enables photo-activated ‘cold’ destruction of the cancer cells keeping their environment alive. The absorption of picosecond pulses by SWCNT agglomerates results in the mechanical (due to photoacoustic effect) rather than photothermal cancer cell destruction, which was visualized by micro-Raman and ultrafast near-infrared CARS. The developed theoretical model allows us to distinguish photothermal, photoacoustic, and photothermoacoustic regimes of the cancer cell destruction, and also to optimize SWCNT-based theranostics recipe.
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Affiliation(s)
- L Golubewa
- Center for Physical Sciences and Technology, Sauletekio Ave. 3, 10257, Vilnius, Lithuania. .,Institute for Nuclear Problems, Belarusian State University, Bobruiskaya 11, 220006, Minsk, Belarus.
| | - I Timoshchenko
- Belarusian State University, Nezavisimosti Ave. 4, 220030, Minsk, Belarus
| | - O Romanov
- Belarusian State University, Nezavisimosti Ave. 4, 220030, Minsk, Belarus
| | - R Karpicz
- Center for Physical Sciences and Technology, Sauletekio Ave. 3, 10257, Vilnius, Lithuania
| | - T Kulahava
- Institute for Nuclear Problems, Belarusian State University, Bobruiskaya 11, 220006, Minsk, Belarus.,Belarusian State University, Nezavisimosti Ave. 4, 220030, Minsk, Belarus
| | - D Rutkauskas
- Center for Physical Sciences and Technology, Sauletekio Ave. 3, 10257, Vilnius, Lithuania
| | - M Shuba
- Institute for Nuclear Problems, Belarusian State University, Bobruiskaya 11, 220006, Minsk, Belarus.,Tomsk State University, Lenin Ave. 36, Tomsk, Russia, 634050
| | - A Dementjev
- Center for Physical Sciences and Technology, Sauletekio Ave. 3, 10257, Vilnius, Lithuania
| | - Yu Svirko
- Institute of Photonics, University of Eastern Finland, Yliopistokatu 7, 80100, Joensuu, Finland
| | - P Kuzhir
- Institute for Nuclear Problems, Belarusian State University, Bobruiskaya 11, 220006, Minsk, Belarus.,Institute of Photonics, University of Eastern Finland, Yliopistokatu 7, 80100, Joensuu, Finland
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31
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Haribabu J, Srividya S, Mahendiran D, Gayathri D, Venkatramu V, Bhuvanesh N, Karvembu R. Synthesis of Palladium(II) Complexes via Michael Addition: Antiproliferative Effects through ROS-Mediated Mitochondrial Apoptosis and Docking with SARS-CoV-2. Inorg Chem 2020; 59:17109-17122. [PMID: 33231439 PMCID: PMC7724763 DOI: 10.1021/acs.inorgchem.0c02373] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Indexed: 12/27/2022]
Abstract
Metal complexes have numerous applications in the current era, particularly in the field of pharmaceutical chemistry and catalysis. A novel synthetic approach for the same is always a beneficial addition to the literature. Henceforth, for the first time, we report the formation of three new Pd(II) complexes through the Michael addition pathway. Three chromone-based thiosemicarbazone ligands (SVSL1-SVSL3) and Pd(II) complexes (1-3) were synthesized and characterized by analytical and spectroscopic tools. The Michael addition pathway for the formation of complexes was confirmed by spectroscopic studies. Distorted square planar structure of complex 2 was confirmed by single-crystal X-ray diffraction. Complexes 1-3 were subjected to DNA- and BSA-binding studies. The complex with cyclohexyl substituent on the terminal N of thiosemicarbazone (3) showed the highest binding efficacy toward these biomolecules, which was further understood through molecular docking studies. The anticancer potential of these complexes was studied preliminarily by using MTT assay in cancer and normal cell lines along with the benchmark drugs (cisplatin, carboplatin, and gemcitabine). It was found that complex 3 was highly toxic toward MDA-MB-231 and AsPC-1 cancer cells with IC50 values of 0.5 and 0.9 μM, respectively, and was more efficient than the standard drugs. The programmed cell death mechanism of the complexes in MDA-MB-231 cancer cells was confirmed. Furthermore, the complexes induced apoptosis via ROS-mediated mitochondrial signaling pathway. Conveniently, all the complexes showed less toxicity (≥50 μM) against MCF-10a normal cell line. Molecular docking studies were performed with VEGFR2, EGFR, and SARS-CoV-2 main protease to illustrate the binding efficiency of the complexes with these receptors. To our surprise, binding potential of the complexes with SARS-CoV-2 main protease was higher than that with chloroquine and hydroxychloroquine.
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Affiliation(s)
- Jebiti Haribabu
- Department of Chemistry, National Institute of Technology, Tiruchirappalli 620015, India
| | - Swaminathan Srividya
- Department of Chemistry, National Institute of Technology, Tiruchirappalli 620015, India
| | - Dharmasivam Mahendiran
- Department of Pathology, Bosch Institute, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Dasararaju Gayathri
- Centre of Advanced
Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600025, India
| | - Vemula Venkatramu
- Department of Physics, Krishna University
Dr. MRAR PG Centre, Nuzvid 521201, India
| | - Nattamai Bhuvanesh
- Department
of Chemistry, Texas A & M University, College Station, Texas 77842, United States
| | - Ramasamy Karvembu
- Department of Chemistry, National Institute of Technology, Tiruchirappalli 620015, India
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32
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Maciel LLF, de Freitas WR, Bull ES, Fernandes C, Horn A, de Aquino Almeida JC, Kanashiro MM. In vitro and in vivo anti-proliferative activity and ultrastructure investigations of a copper(II) complex toward human lung cancer cell NCI-H460. J Inorg Biochem 2020; 210:111166. [DOI: 10.1016/j.jinorgbio.2020.111166] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 06/12/2020] [Accepted: 06/12/2020] [Indexed: 02/08/2023]
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33
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Long non-coding RNA GAS5, by up-regulating PRC2 and targeting the promoter methylation of miR-424, suppresses multiple malignant phenotypes of glioma. J Neurooncol 2020; 148:529-543. [PMID: 32472311 DOI: 10.1007/s11060-020-03544-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 05/23/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE Malignant gliomas remain significant challenges in clinic and pose dismal prognosis on patients. In this study, we focused on growth arrest-specific 5 (GAS5), a tumor suppressive long non-coding RNA in glioma, explored its crosstalk with miR-424, and examined their biological functions in glioma. METHODS Expressions of GAS5 and miR-424 were measured using qRT-PCR. The regulation of GAS5 on miR-424 expression was examined in GAS5-overexpressing glioma cells by combining methylation-specific PCR, western blotting, and RNA immunoprecipitation. Functional significance of GAS5 and miR-424 on in vitro cell proliferation, apoptosis, migration, invasion, and in vivo tumor growth was examined using colony formation, flow cytometry, wound healing, transwell assay, and the xenograft model, respectively. The potential targeting of AKT3 by miR-424 was investigated using luciferase reporter assay. RESULTS GAS5 and miR-424 were significantly down-regulated in glioma cells. GAS5 directly interacted with enhancer of zeste homolog 2 (EZH2), stimulated the formation of polycomb repressive complex 2 (PRC2), reduced the levels of DNA methyltransferases (Dnmts), alleviated promoter methylation of miR-424, and promoted miR-424 expression. Functionally, GAS5, by up-regulating miR-424, inhibited cell proliferation, migration, and invasion, while increased apoptosis of glioma cells in vitro, and suppressed xenograft growth in vivo. miR-424 directly inhibited AKT3 and altered the expressions of AKT3 targets, cyclinD1, c-Myc, Bax, and Bcl-2, which might contribute to its tumor suppressive activities. CONCLUSIONS GAS5, by inhibiting methylation and boosting expression of miR-424, inhibits AKT3 signaling and suppresses multiple malignant phenotypes. Therefore, stimulating GAS5/miR-424 signaling may benefit the treatment of glioma.
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34
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Zheng Z, Li G. Mechanisms and Therapeutic Regulation of Pyroptosis in Inflammatory Diseases and Cancer. Int J Mol Sci 2020; 21:ijms21041456. [PMID: 32093389 PMCID: PMC7073143 DOI: 10.3390/ijms21041456] [Citation(s) in RCA: 107] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/16/2020] [Accepted: 02/17/2020] [Indexed: 02/07/2023] Open
Abstract
Programmed Cell Death (PCD) is considered to be a pathological form of cell death when mediated by an intracellular program and it balances cell death with survival of normal cells. Pyroptosis, a type of PCD, is induced by the inflammatory caspase cleavage of gasdermin D (GSDMD) and apoptotic caspase cleavage of gasdermin E (GSDME). This review aims to summarize the latest molecular mechanisms about pyroptosis mediated by pore-forming GSDMD and GSDME proteins that permeabilize plasma and mitochondrial membrane activating pyroptosis and apoptosis. We also discuss the potentiality of pyroptosis as a therapeutic target in human diseases. Blockade of pyroptosis by compounds can treat inflammatory disease and pyroptosis activation contributes to cancer therapy.
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Affiliation(s)
| | - Guorong Li
- Correspondence: ; Tel.: +86-531-8618-2690
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Alam MJ, Gupta R, Mahapatra NR, Goswami SK. Catestatin reverses the hypertrophic effects of norepinephrine in H9c2 cardiac myoblasts by modulating the adrenergic signaling. Mol Cell Biochem 2019; 464:205-219. [PMID: 31792650 DOI: 10.1007/s11010-019-03661-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 11/20/2019] [Indexed: 02/06/2023]
Abstract
Catestatin (CST) is a catecholamine release-inhibitory peptide secreted from the adrenergic neurons and the adrenal glands. It regulates the cardiovascular functions and it is associated with cardiovascular diseases. Though its mechanisms of actions are not known, there are evidences of cross-talk between the adrenergic and CST signaling. We hypothesized that CST moderates the adrenergic overdrive and studied its effects on norepinephrine-mediated hypertrophic responses in H9c2 cardiac myoblasts. CST alone regulated the expression of a number of fetal genes that are induced during hypertrophy. When cells were pre-treated CST, it blunted the modulation of those genes by norepinephrine. Norepinephrine (2 µM) treatment also increased cell size and enhanced the level of Troponin T in the sarcomere. These effects were attenuated by the treatment with CST. CST attenuated the immediate generation of ROS and the increase in glutathione peroxidase activity induced by norepinephrine treatment. Expression of fosB and AP-1 promoter-reporter constructs was used as the endpoint readout for the interaction between the CST and adrenergic signals at the gene level. It showed that CST largely attenuates the stimulatory effects of norepinephrine and other mitogenic signals through the modulation of the gene regulatory modules in a characteristic manner. Depending upon the dose, the signaling by CST appears to be disparate, and at 10-25 nM doses, it primarily moderated the signaling by the β1/2-adrenoceptors. This study, for the first time, provides insights into the modulation of adrenergic signaling in the heart by CST.
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Affiliation(s)
- Md Jahangir Alam
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Fridabad, 121001, India
| | - Richa Gupta
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Nitish R Mahapatra
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Shyamal K Goswami
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Fridabad, 121001, India.
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Fang Y, Tian S, Pan Y, Li W, Wang Q, Tang Y, Yu T, Wu X, Shi Y, Ma P, Shu Y. Pyroptosis: A new frontier in cancer. Biomed Pharmacother 2019; 121:109595. [PMID: 31710896 DOI: 10.1016/j.biopha.2019.109595] [Citation(s) in RCA: 551] [Impact Index Per Article: 110.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 10/16/2019] [Accepted: 10/26/2019] [Indexed: 02/08/2023] Open
Abstract
Pyroptosis is an inflammatory form of cell death triggered by certain inflammasomes, leading to the cleavage of gasdermin D (GSDMD) and activation of inactive cytokines like IL-18 and IL-1β. Pyroptosis has been reported to be closely associated to some diseases like atherosclerosis and diabetic nephropathy. Recently, some studies found that pyroptosis can influence the proliferation, invasion and metastasis of tumor, which regulated by some non-coding RNAs and other molecules. Hence, we provided an overview of morphological and molecular characteristics of pyroptosis. We also focus on mechanism of regulating pyroptosis in tumor cells as well as the potential roles of pyroptosis in cancer to explore potential diagnostic markers in cancers contributing to the prevention and treatment in cancers.
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Affiliation(s)
- Yuan Fang
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, People's Republic of China.
| | - Shengwang Tian
- Department of Medical Oncology, Affiliated Jintan Hospital of Jiangsu University, Changzhou 213200, People's Republic of China.
| | - Yutian Pan
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, People's Republic of China.
| | - Wei Li
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, People's Republic of China; Department of Oncology, Affiliated Sir Run Run Hospital of Nanjing Medical University, Nanjing 211166, People's Republic of China.
| | - Qiming Wang
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, People's Republic of China.
| | - Yu Tang
- Department of Cardio-Thoracic Surgery, Affiliated Nanjing Hospital of Nanjing Medical University, Nanjing 210006, People's Republic of China.
| | - Tao Yu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, People's Republic of China.
| | - Xi Wu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, People's Republic of China.
| | - Yongkang Shi
- Department of Medical Oncology, Affiliated Jintan Hospital of Jiangsu University, Changzhou 213200, People's Republic of China.
| | - Pei Ma
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, People's Republic of China.
| | - Yongqian Shu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, People's Republic of China; Department of Medical Oncology, Affiliated Jintan Hospital of Jiangsu University, Changzhou 213200, People's Republic of China; Department of Oncology, Affiliated Sir Run Run Hospital of Nanjing Medical University, Nanjing 211166, People's Republic of China; Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, People's Republic of China.
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Neuronal degeneration and associated alterations in cytokine and protein in an experimental branch retinal venous occlusion model. Exp Eye Res 2018; 174:133-146. [DOI: 10.1016/j.exer.2018.05.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 05/18/2018] [Accepted: 05/23/2018] [Indexed: 11/22/2022]
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Silke J, Johnstone RW. In the Midst of Life-Cell Death: What Is It, What Is It Good for, and How to Study It. Cold Spring Harb Protoc 2016; 2016:2016/12/pdb.top070508. [PMID: 27934692 DOI: 10.1101/pdb.top070508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Cell death, one of the most fundamental biological processes, has not made it into the public consciousness in the same way that genetic inheritance, cell division, or DNA replication has. Everyone knows they get their genes from their parents, but few would be aware that even before they were born a lot of essential cell death has shaped their development. The greater population, for the most part, is blissfully unaware that every day millions of their own cells die in a programmed way and that this is essential for normal human physiology-their well-being, in fact. Nowhere is the burial liturgy, "In the midst of life we are in death," more apt. Despite this public underappreciation, cell death research is a major industry. A search in PubMed for "apoptosis," a special form of cell death that is caused by caspases, returns approximately 280,000 hits. The intense research interest arises from the realization that abnormal cell death responses play an important role in two of the biggest killers in the western world: cancer and cardio/cerebrovascular disease. Furthermore, the manner in which cells die can also influence the development of autoimmune and autoinflammatory diseases. It is therefore of paramount importance to ensure that experiments accurately quantitate and correctly identify cell death in all its guises. That is the goal of this protocol collection.
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Affiliation(s)
- John Silke
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3052, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Parkville, Victoria 3050, Australia
| | - Ricky W Johnstone
- Peter MacCallum Cancer Centre, Melbourne, Victoria 3002, Australia
- The Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria 3052, Australia
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