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Robinson KS, Sennhenn P, Yuan DS, Liu H, Taddei D, Qian Y, Luo W. TMBIM6/BI-1 is an intracellular environmental regulator that induces paraptosis in cancer via ROS and Calcium-activated ERAD II pathways. Oncogene 2024:10.1038/s41388-024-03222-x. [PMID: 39609612 DOI: 10.1038/s41388-024-03222-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 10/28/2024] [Accepted: 11/05/2024] [Indexed: 11/30/2024]
Abstract
Transmembrane B cell lymphoma 2-associated X protein inhibitor motif-containing (TMBIM) 6, also known as Bax Inhibitor-1 (BI-1), has been heavily researched for its cytoprotective functions. TMBIM6 functional diversity includes modulating cell survival, stress, metabolism, cytoskeletal dynamics, organelle function, regulating cytosolic acidification, calcium, and reactive oxygen species (ROS). Clinical research shows TMBIM6 plays a key role in many of the world's top diseases/injuries (i.e., Alzheimer's, Parkinson's, diabetes, obesity, brain injury, liver disease, heart disease, aging, etc.), including cancer, where TMBIM6 expression impacts patient survival, chemoresistance, cancer progression, and metastasis. We show TMBIM6 is activated by, and undergoes, different conformational changes that dictate its function following a significant change in the cell's IntraCellular Environment (ICE). TMBIM6 agonism, following ICE change, can help the cell overcome multiple stresses including toxin exposure, viral infection, wound healing, and excitotoxicity. However, in cancer cells TMBIM6 agonism results in rapid paraptotic induction irrespective of the cancer type, sub-type, genotype or phenotype. Furthermore, the level of TMBIM6 expression in cancer did not dictate the level of paraptotic induction; however, it did dictate the rate at which paraptosis occurred. TMBIM6 agonism did not induce paraptosis in cancer via canonical routes involving p38 MAPK, JNK, ERK, UPR, autophagy, proteasomes, or Caspase-9. Instead, TMBIM6 agonism in cancer upregulates cytosolic Ca2+ and ROS, activates lysosome biogenesis, and induces paraptosis via ERAD II mechanisms. In xenograft models, we show TMBIM6 agonism induces rapid cancer cell death with no toxicity, even at high doses of TMBIM6 agonist (>450 mg/kg). In summary, this study shows TMBIM6's functional diversity is only activated by severe ICE change in diseased/injured cells, highlighting its transformative potential as a therapeutic target across various diseases and injuries, including cancer.
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Affiliation(s)
| | | | | | - Hai Liu
- Viva Biotech, Shanghai, China
| | | | | | - Wei Luo
- MicroQuin, Cambridge, MA, USA
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2
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Kumar R, Guleria N, Deeksha MG, Kumari N, Kumar R, Jha AK, Parmar N, Ganguly P, de Aguiar Andrade EH, Ferreira OO, de Oliveira MS, Chandini. From an Invasive Weed to an Insecticidal Agent: Exploring the Potential of Lantana camara in Insect Management Strategies-A Review. Int J Mol Sci 2024; 25:12788. [PMID: 39684506 DOI: 10.3390/ijms252312788] [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: 10/30/2024] [Revised: 11/19/2024] [Accepted: 11/25/2024] [Indexed: 12/18/2024] Open
Abstract
Lantana camara is weed with a wide range of chemical constituents, including primary and secondary metabolites such as alkaloids, flavonoids, tannins, saponins, and terpenoids. These compounds contribute to its medicinal and pesticidal potential. The essential oils and different solvent fractions derived from L. camara exhibit notable variations in their respective chemical compositions across various plant parts, spatial distributions, and interspecific comparisons. The principal components, notably lantadene A, lantadene B, lantadene C, lantadene D, β-caryophyllene, α-humulene, and several others, constitute a significant portion of the essential oil derived from the leaves and flowers. Researchers have discovered that L. camara oil exhibits potent insecticidal activity against a range of pests, with variations in potency observed across different seasons due to changes in chemical composition. In addition to the essential oils, solvent extracts of L. camara, primarily methanolic extracts of the leaves of this species, demonstrate considerable potential as fumigant and contact toxins for stored grain pests. However, these have been comparatively less characterized with respect to their insecticidal properties, particularly in comparison to the essential oils. Molecular docking studies have demonstrated that phytochemical compounds present in the plants interfere with the activity of several enzymes that are responsible for the growth and survival of insects. For example, compounds such as β-caryophyllene and linalool exhibited a high binding affinity to AChE, thereby enhancing its neurotoxic effects. In conclusion, this review identifies L. camara as a natural insecticide with a complex set of modes of action attributed to its rich phytochemical profile. The integration of traditional knowledge with modern molecular techniques might expose avenues for the sustainable management of pests and control, ultimately making L. camara a key resource for such applications. Further studies are necessary to characterize such bioactive compounds and their uses in controlling pests in agricultural operations.
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Affiliation(s)
- Randeep Kumar
- Department of Soil Science and Agricultural Chemistry, Bihar Agricultural University, Sabour, Bhagalpur 813210, Bihar, India
| | - Niraj Guleria
- Mountain Agricultural Research and Extension Station, CSKHPKV, Salooni 176320, Himachal Pradesh, India
| | | | - Nisha Kumari
- Department of Soil Science and Agricultural Chemistry, Bihar Agricultural University, Sabour, Bhagalpur 813210, Bihar, India
| | - Ravendra Kumar
- Department of Chemistry, College of Basic Science and Humanities, G.B. Pant University of Agriculture and Technology, Pantnagar 263145, Uttarakhand, India
| | - Arun Kumar Jha
- Department of Soil Science and Agricultural Chemistry, Bihar Agricultural University, Sabour, Bhagalpur 813210, Bihar, India
| | - Neha Parmar
- Department of Veterinary Public Health and Epidemiology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana 141004, Punjab, India
| | - Pritam Ganguly
- Department of Soil Science and Agricultural Chemistry, Bihar Agricultural University, Sabour, Bhagalpur 813210, Bihar, India
| | | | - Oberdan Oliveira Ferreira
- Laboratório Adolpho Ducke-LAD-Museu Paraense Emílio Goeld, Av. Perimetral, 1901-Terra Firme, Belém 66077-830, PA, Brazil
| | - Mozaniel Santana de Oliveira
- Laboratório Adolpho Ducke-LAD-Museu Paraense Emílio Goeld, Av. Perimetral, 1901-Terra Firme, Belém 66077-830, PA, Brazil
| | - Chandini
- Department of Agronomy, Bihar Agricultural University, Sabour, Bhagalpur 813210, Bihar, India
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Esparza D, Lima C, Abuelreich S, Ghaeli I, Hwang J, Oh E, Lenz A, Gu A, Jiang N, Kandeel F, Thurmond DC, Jovanovic-Talisman T. Pancreatic β-cells package double C2-like domain beta protein into extracellular vesicles via tandem C2 domains. Front Endocrinol (Lausanne) 2024; 15:1451279. [PMID: 39497805 PMCID: PMC11532064 DOI: 10.3389/fendo.2024.1451279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Accepted: 09/10/2024] [Indexed: 11/07/2024] Open
Abstract
Introduction Double C2-like domain beta (DOC2B) is a vesicle priming protein critical for glucose-stimulated insulin secretion in β-cells. Individuals with type 1 diabetes (T1D) have lower levels of DOC2B in their residual functional β-cell mass and platelets, a phenotype also observed in a mouse model of T1D. Thus, DOC2B levels could provide important information on β-cell dys(function). Objective Our objective was to evaluate the DOC2B secretome of β-cells. In addition to soluble extracellular protein, we assessed DOC2B localized within membrane-delimited nanoparticles - extracellular vesicles (EVs). Moreover, in rat clonal β-cells, we probed domains required for DOC2B sorting into EVs. Method Using Single Extracellular VEsicle Nanoscopy, we quantified EVs derived from clonal β-cells (human EndoC-βH1, rat INS-1 832/13, and mouse MIN6); two other cell types known to regulate glucose homeostasis and functionally utilize DOC2B (skeletal muscle rat myotube L6-GLUT4myc and human neuronal-like SH-SY5Y cells); and human islets sourced from individuals with no diabetes (ND). EVs derived from ND human plasma, ND human islets, and cell lines were isolated with either size exclusion chromatography or differential centrifugation. Isolated EVs were comprehensively characterized using dotblots, transmission electron microscopy, nanoparticle tracking analysis, and immunoblotting. Results DOC2B was present within EVs derived from ND human plasma, ND human islets, and INS-1 832/13 β-cells. Compared to neuronal-like SH-SY5Y cells and L6-GLUT4myc myotubes, clonal β-cells (EndoC-βH1, INS-1 832/13, and MIN6) produced significantly more EVs. DOC2B levels in EVs (over whole cell lysates) were higher in INS-1 832/13 β-cells compared to L6-GLUT4myc myotubes; SH-SY5Y neuronal-like cells did not release appreciable DOC2B. Mechanistically, we show that DOC2B was localized to the EV lumen; the tandem C2 domains were sufficient to confer sorting to INS-1 832/13 β-cell EVs. Discussion Clonal β-cells and ND human islets produce abundant EVs. In cell culture, appreciable DOC2B can be packaged into EVs, and a small fraction is excreted as a soluble protein. While DOC2B-laden EVs and soluble protein are present in ND plasma, further studies will be necessary to determine if DOC2B originating from β-cells significantly contributes to the plasma secretome.
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Affiliation(s)
- Diana Esparza
- Department of Molecular and Cellular Endocrinology, Arthur Riggs Diabetes and Metabolism Research Institute, Beckman Research Institute at City of Hope, Duarte, CA, United States
| | - Carinna Lima
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute at City of Hope, Duarte, CA, United States
| | - Sarah Abuelreich
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute at City of Hope, Duarte, CA, United States
| | - Ima Ghaeli
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute at City of Hope, Duarte, CA, United States
| | - Jinhee Hwang
- Department of Molecular and Cellular Endocrinology, Arthur Riggs Diabetes and Metabolism Research Institute, Beckman Research Institute at City of Hope, Duarte, CA, United States
| | - Eunjin Oh
- Department of Molecular and Cellular Endocrinology, Arthur Riggs Diabetes and Metabolism Research Institute, Beckman Research Institute at City of Hope, Duarte, CA, United States
| | - Ayelet Lenz
- Department of Molecular and Cellular Endocrinology, Arthur Riggs Diabetes and Metabolism Research Institute, Beckman Research Institute at City of Hope, Duarte, CA, United States
| | - Angel Gu
- Department of Translational Research and Cellular Therapeutics, Beckman Research Institute at City of Hope, Duarte, CA, United States
| | - Nan Jiang
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute at City of Hope, Duarte, CA, United States
| | - Fouad Kandeel
- Department of Translational Research and Cellular Therapeutics, Beckman Research Institute at City of Hope, Duarte, CA, United States
| | - Debbie C. Thurmond
- Department of Molecular and Cellular Endocrinology, Arthur Riggs Diabetes and Metabolism Research Institute, Beckman Research Institute at City of Hope, Duarte, CA, United States
| | - Tijana Jovanovic-Talisman
- Department of Cancer Biology and Molecular Medicine, Beckman Research Institute at City of Hope, Duarte, CA, United States
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Cimino M, Feligioni M. The selective disruption of the JNK2/Syntaxin-1A interaction by JGRi1 protects against NMDA-evoked toxicity in SH-SY5Y cells. Neurochem Int 2024; 179:105824. [PMID: 39098765 DOI: 10.1016/j.neuint.2024.105824] [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: 07/03/2024] [Revised: 07/29/2024] [Accepted: 07/31/2024] [Indexed: 08/06/2024]
Abstract
N-methyl-D-aspartate (NMDA) receptors are calcium-permeable ion-channel receptors, specifically activated by glutamate, that permit the activation of specific intracellular calcium-dependent pathways. Aberrant NMDA receptor activation leads to a condition known as excitotoxicity, in which excessive calcium inflow induces apoptotic pathways. To date, memantine is the only NMDA receptor antagonist authorized in clinical practice, hence, a better understanding of the NMDA cascade represents a need to discover novel pharmacological targets. We previously reported non-conventional intracellular signaling triggered by which, upon activation, promotes the interaction between JNK2 and STX1A which enhances the rate of vesicular secretion. We developed a cell-permeable peptide, named JGRi1, able to disrupt such interaction, thus reducing vesicular secretion. In this work, to selectively study the effect of JGRi1 in a much simpler system, we employed neuroblastoma cells, SH-SY5Y. We found that SH-SY5Y cells express the components of the NMDA receptor-JNK2 axis and that the NMDA stimulus increases the rate of vesicle release. Both JGRi1 and memantine protected SH-SY5Y cells from NMDA toxicity, but only JGRi1 reduced the interaction between JNK2 and STX1A. Both drugs successfully reduced NMDA-induced vesicle release, although, unlike memantine, JGRi1 did not prevent calcium influx. NMDA treatment induced JNK2 expression, but not JNK1 or JNK3, which was prevented by both JGRi1 and memantine, suggesting that JNK2 may be specifically involved in the response to NMDA. In conclusion, being JGRi1 able to protect cells against NMDA toxicity by interfering with JNK2/STX1A interaction, it could be considered a novel pharmacological tool to counteract excitotoxicity.
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Affiliation(s)
- M Cimino
- EBRI Rita Levi-Montalcini Foundation, Rome, Italy
| | - M Feligioni
- EBRI Rita Levi-Montalcini Foundation, Rome, Italy; Department of Neuro-Rehabilitation Sciences, Casa di Cura Igea, Milan, Italy.
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5
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Wang Y, Wang Z, Ali A, Su J, Huang T, Hou C, Li X. Microbial-induced calcium precipitation: Bibliometric analysis, reaction mechanisms, mineralization types, and perspectives. CHEMOSPHERE 2024; 362:142762. [PMID: 38971440 DOI: 10.1016/j.chemosphere.2024.142762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 06/27/2024] [Accepted: 07/03/2024] [Indexed: 07/08/2024]
Abstract
Microbial-induced calcium precipitation (MICP) refers to the formation of calcium precipitates induced by mineralization during microbial metabolism. MICP has been widely used as an ecologically sustainable method in environmental, geotechnical, and construction fields. This article reviews the removal mechanisms of MICP for different contaminants in the field of water treatment. The nucleation pathway is explained at both extracellular and intracellular levels, with a focus on evaluating the contribution of extracellular polymers to MICP. The types of mineralization and the regulatory role of enzyme genes in the MICP process are innovatively summarized. Based on this, the environmental significance of MICP is illustrated, and the application prospects of calcium precipitation products are discussed. The research hotspots and development trends of MICP are analyzed by bibliometric methods, and the challenges and future directions of MICP technology are identified. This review aims to provide a theoretical basis for further understanding of the MICP phenomenon in water treatment and the effective removal of multiple pollutants, which will help researchers to find the breakthroughs and innovations in the existing technologies, with a view to making significant progress in MICP technology.
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Affiliation(s)
- Yuxuan Wang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Zhao Wang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Amjad Ali
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Junfeng Su
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Tinglin Huang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Chenxi Hou
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Xuan Li
- College of Environmental Science & Engineering, Yancheng Institute of Technology, Yancheng, 224051, China
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6
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Tkachenko A. Hemocompatibility studies in nanotoxicology: Hemolysis or eryptosis? (A review). Toxicol In Vitro 2024; 98:105814. [PMID: 38582230 DOI: 10.1016/j.tiv.2024.105814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/13/2024] [Accepted: 04/03/2024] [Indexed: 04/08/2024]
Abstract
Hemocompatibility evaluation is an important step in nanotoxicological studies. It is generally accepted that nanomaterials promote lysis of erythrocytes, blood clotting, alter phagocytosis, and upregulate pro-inflammatory cytokines. However, there are no standardized guidelines for testing nanomaterials hemocompatibility despite the fact that nanomaterials enter the bloodstream and interact with blood cells. In this review, the current knowledge on the ability of nanomaterials to induce distinct cell death modalities of erythrocytes is highlighted primarily focusing on hemolysis and eryptosis. This review aims to summarize the molecular mechanisms underlying erythrotoxicity of nanomaterials and critically compare the sensitivity and efficiency of hemolysis or eryptosis assays for nanomaterials blood compatibility testing. The list of eryptosis-inducing nanomaterials is growing, but it is still difficult to generalize how physico-chemical properties of nanoparticles affect eryptosis degree and molecular mechanisms involved. Thus, another aim of this review is to raise the awareness of eryptosis as a nanotoxicological tool to encourage the corresponding studies. It is worthwhile to consider adding eryptosis to in vitro nanomaterials hemocompatibility testing protocols and guidelines.
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Affiliation(s)
- Anton Tkachenko
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 25250 Vestec, Czech Republic.
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Park J, Evangelopoulos M, Vasher MK, Kudruk S, Ramani N, Mayer V, Solivan AC, Lee A, Mirkin CA. Enhancing Endosomal Escape and Gene Regulation Activity for Spherical Nucleic Acids. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306902. [PMID: 37932003 PMCID: PMC10947971 DOI: 10.1002/smll.202306902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 10/19/2023] [Indexed: 11/08/2023]
Abstract
The therapeutic potential of small interfering RNAs (siRNAs) is limited by their poor stability and low cellular uptake. When formulated as spherical nucleic acids (SNAs), siRNAs are resistant to nuclease degradation and enter cells without transfection agents with enhanced activity compared to their linear counterparts; however, the gene silencing activity of SNAs is limited by endosomal entrapment, a problem that impacts many siRNA-based nanoparticle constructs. To increase cytosolic delivery, SNAs are formulated using calcium chloride (CaCl2 ) instead of the conventionally used sodium chloride (NaCl). The divalent calcium (Ca2+ ) ions remain associated with the multivalent SNA and have a higher affinity for SNAs compared to their linear counterparts. Importantly, confocal microscopy studies show a 22% decrease in the accumulation of CaCl2 -salted SNAs within the late endosomes compared to NaCl-salted SNAs, indicating increased cytosolic delivery. Consistent with this finding, CaCl2 -salted SNAs comprised of siRNA and antisense DNA all exhibit enhanced gene silencing activity (up to 20-fold), compared to NaCl-salted SNAs regardless of sequence or cell line (U87-MG and SK-OV-3) studied. Moreover, CaCl2 -salted SNA-based forced intercalation probes show improved cytosolic mRNA detection.
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Affiliation(s)
- Jungsoo Park
- Interdisciplinary Biological Sciences Graduate Program, Northwestern University, Evanston, Illinois, 60208, United States
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois, 60208, United States
| | - Michael Evangelopoulos
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois, 60208, United States
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois, 60208, United States
| | - Matthew K. Vasher
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois, 60208, United States
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois, 60208, United States
| | - Sergej Kudruk
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois, 60208, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois, 60208, United States
| | - Namrata Ramani
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois, 60208, United States
- Department of Material Sciences and Engineering, Northwestern University, Evanston, Illinois, 60208, United States
| | - Vinzenz Mayer
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois, 60208, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois, 60208, United States
| | - Alexander C. Solivan
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois, 60208, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois, 60208, United States
| | - Andrew Lee
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois, 60208, United States
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois, 60208
| | - Chad A. Mirkin
- Interdisciplinary Biological Sciences Graduate Program, Northwestern University, Evanston, Illinois, 60208, United States
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois, 60208, United States
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois, 60208, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois, 60208, United States
- Department of Material Sciences and Engineering, Northwestern University, Evanston, Illinois, 60208, United States
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois, 60208
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8
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Morozas A, Malyško-Ptašinskė V, Kulbacka J, Ivaška J, Ivaškienė T, Novickij V. Electrochemotherapy for head and neck cancers: possibilities and limitations. Front Oncol 2024; 14:1353800. [PMID: 38434679 PMCID: PMC10905418 DOI: 10.3389/fonc.2024.1353800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 01/29/2024] [Indexed: 03/05/2024] Open
Abstract
Head and neck cancer continues to be among the most prevalent types of cancer globally, yet it can be managed with appropriate treatment approaches. Presently, chemotherapy and radiotherapy stand as the primary treatment modalities for various groups and regions affected by head and neck cancer. Nonetheless, these treatments are linked to adverse side effects in patients. Moreover, due to tumor resistance to multiple drugs (both intrinsic and extrinsic) and radiotherapy, along with numerous other factors, recurrences or metastases often occur. Electrochemotherapy (ECT) emerges as a clinically proven alternative that offers high efficacy, localized effect, and diminished negative factors. Electrochemotherapy involves the treatment of solid tumors by combining a non-permeable cytotoxic drug, such as bleomycin, with a locally administered pulsed electric field (PEF). It is crucial to employ this method effectively by utilizing optimal PEF protocols and drugs at concentrations that do not possess inherent cytotoxic properties. This review emphasizes an examination of diverse clinical practices of ECT concerning head and neck cancer. It specifically delves into the treatment procedure, the choice of anti-cancer drugs, pre-treatment planning, PEF protocols, and electroporation electrodes as well as the efficacy of tumor response to the treatment and encountered obstacles. We have also highlighted the significance of assessing the spatial electric field distribution in both tumor and adjacent tissues prior to treatment as it plays a pivotal role in determining treatment success. Finally, we compare the ECT methodology to conventional treatments to highlight the potential for improvement and to facilitate popularization of the technique in the area of head and neck cancers where it is not widespread yet while it is not the case with other cancer types.
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Affiliation(s)
- Arnoldas Morozas
- Department of Immunology and Bioelectrochemistry, State Research Institute Centre of Innovative Medicine, Vilnius, Lithuania
| | | | - Julita Kulbacka
- Department of Immunology and Bioelectrochemistry, State Research Institute Centre of Innovative Medicine, Vilnius, Lithuania
- Department of Molecular and Cellular Biology, Wroclaw Medical University, Wroclaw, Poland
| | - Justinas Ivaška
- Department of Immunology and Bioelectrochemistry, State Research Institute Centre of Innovative Medicine, Vilnius, Lithuania
- Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - Tatjana Ivaškienė
- Department of Immunology and Bioelectrochemistry, State Research Institute Centre of Innovative Medicine, Vilnius, Lithuania
| | - Vitalij Novickij
- Department of Immunology and Bioelectrochemistry, State Research Institute Centre of Innovative Medicine, Vilnius, Lithuania
- Faculty of Electronics, Vilnius Gediminas Technical University, Vilnius, Lithuania
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Boff JM, Shrestha AP, Madireddy S, Viswaprakash N, Della Santina L, Vaithianathan T. The Interplay between Neurotransmitters and Calcium Dynamics in Retinal Synapses during Development, Health, and Disease. Int J Mol Sci 2024; 25:2226. [PMID: 38396913 PMCID: PMC10889697 DOI: 10.3390/ijms25042226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
The intricate functionality of the vertebrate retina relies on the interplay between neurotransmitter activity and calcium (Ca2+) dynamics, offering important insights into developmental processes, physiological functioning, and disease progression. Neurotransmitters orchestrate cellular processes to shape the behavior of the retina under diverse circumstances. Despite research to elucidate the roles of individual neurotransmitters in the visual system, there remains a gap in our understanding of the holistic integration of their interplay with Ca2+ dynamics in the broader context of neuronal development, health, and disease. To address this gap, the present review explores the mechanisms used by the neurotransmitters glutamate, gamma-aminobutyric acid (GABA), glycine, dopamine, and acetylcholine (ACh) and their interplay with Ca2+ dynamics. This conceptual outline is intended to inform and guide future research, underpinning novel therapeutic avenues for retinal-associated disorders.
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Affiliation(s)
- Johane M. Boff
- Department of Pharmacology, Addiction Science, and Toxicology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (J.M.B.); (A.P.S.)
| | - Abhishek P. Shrestha
- Department of Pharmacology, Addiction Science, and Toxicology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (J.M.B.); (A.P.S.)
| | - Saivikram Madireddy
- College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA;
| | - Nilmini Viswaprakash
- Department of Medical Education, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA;
| | | | - Thirumalini Vaithianathan
- Department of Pharmacology, Addiction Science, and Toxicology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (J.M.B.); (A.P.S.)
- Department of Ophthalmology, Hamilton Eye Institute, University of Tennessee Health Science Center, Memphis, TN 38163, USA
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Lisec B, Bozic T, Santek I, Markelc B, Vrecl M, Frangez R, Cemazar M. Characterization of two distinct immortalized endothelial cell lines, EA.hy926 and HMEC-1, for in vitro studies: exploring the impact of calcium electroporation, Ca 2+ signaling and transcriptomic profiles. Cell Commun Signal 2024; 22:118. [PMID: 38347539 PMCID: PMC10863159 DOI: 10.1186/s12964-024-01503-2] [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: 11/08/2023] [Accepted: 01/28/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND Disruption of Ca2+ homeostasis after calcium electroporation (CaEP) in tumors has been shown to elicit an enhanced antitumor effect with varying impacts on healthy tissue, such as endothelium. Therefore, our study aimed to determine differences in Ca2+ kinetics and gene expression involved in the regulation of Ca2+ signaling and homeostasis, as well as effects of CaEP on cytoskeleton and adherens junctions of the established endothelial cell lines EA.hy926 and HMEC-1. METHODS CaEP was performed on EA.hy926 and HMEC-1 cells with increasing Ca2+ concentrations. Viability after CaEP was assessed using Presto Blue, while the effect on cytoskeleton and adherens junctions was evaluated via immunofluorescence staining (F-actin, α-tubulin, VE-cadherin). Differences in intracellular Ca2+ regulation ([Ca2+]i) were determined with spectrofluorometric measurements using Fura-2-AM, exposing cells to DPBS, ionomycin, thapsigargin, ATP, bradykinin, angiotensin II, acetylcholine, LaCl3, and GdCl3. Molecular distinctions were identified by analyzing differentially expressed genes and pathways related to the cytoskeleton and Ca2+ signaling through RNA sequencing. RESULTS EA.hy926 cells, at increasing Ca2+ concentrations, displayed higher CaEP susceptibility and lower survival than HMEC-1. Immunofluorescence confirmed CaEP-induced, time- and Ca2+-dependent morphological changes in EA.hy926's actin filaments, microtubules, and cell-cell junctions. Spectrofluorometric Ca2+ kinetics showed higher amplitudes in Ca2+ responses in EA.hy926 exposed to buffer, G protein coupled receptor agonists, bradykinin, and angiotensin II compared to HMEC-1. HMEC-1 exhibited significantly higher [Ca2+]i changes after ionomycin exposure, while responses to thapsigargin, ATP, and acetylcholine were similar in both cell lines. ATP without extracellular Ca2+ ions induced a significantly higher [Ca2+]i rise in EA.hy926, suggesting purinergic ionotropic P2X and metabotropic P2Y receptor activation. RNA-sequencing analysis showed significant differences in cytoskeleton- and Ca2+-related gene expression, highlighting upregulation of ORAI2, TRPC1, TRPM2, CNGA3, TRPM6, and downregulation of TRPV4 and TRPC4 in EA.hy926 versus HMEC-1. Moreover, KEGG analysis showed upregulated Ca2+ import and downregulated export genes in EA.hy926. CONCLUSIONS Our finding show that significant differences in CaEP response and [Ca2+]i regulation exist between EA.hy926 and HMEC-1, which may be attributed to distinct transcriptomic profiles. EA.hy926, compared to HMEC-1, displayed higher susceptibility and sensitivity to [Ca2+]i changes, which may be linked to overexpression of Ca2+-related genes and an inability to mitigate changes in [Ca2+]i. The study offers a bioinformatic basis for selecting EC models based on research objectives.
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Affiliation(s)
- Barbara Lisec
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000, Ljubljana, Slovenia
| | - Tim Bozic
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000, Ljubljana, Slovenia
| | - Iva Santek
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000, Ljubljana, Slovenia
- Faculty of Medicine, University of Ljubljana, Vrazov trg 2, SI-1000, Ljubljana, Slovenia
| | - Bostjan Markelc
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000, Ljubljana, Slovenia
| | - Milka Vrecl
- Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, Gerbiceva 60, SI-1000, Ljubljana, Slovenia
| | - Robert Frangez
- Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, Gerbiceva 60, SI-1000, Ljubljana, Slovenia
| | - Maja Cemazar
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Zaloska cesta 2, SI-1000, Ljubljana, Slovenia.
- Faculty of Health Sciences, University of Primorska, Polje 42, SI-6310, Izola, Slovenia.
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Li X, Zhang J, Li Y, Dai Y, Zhu H, Jiang H, Han Y, Chu X, Sun Y, Ju W, Li Z, Zeng L, Xu K, Qiao J. Celastrol inhibits platelet function and thrombus formation. Biochem Biophys Res Commun 2024; 693:149366. [PMID: 38091842 DOI: 10.1016/j.bbrc.2023.149366] [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: 11/26/2023] [Revised: 11/27/2023] [Accepted: 12/05/2023] [Indexed: 01/10/2024]
Abstract
INTRODUCTION Celastrol is an active pentacyclic triterpenoid extracted from Tripterygium wilfordii and has anti-inflammatory and anti-tumor properties. Whether Celastrol modulates platelet function remains unknown. Our study investigated its role in platelet function and thrombosis. METHODS Human platelets were isolated and incubated with Celastrol (0, 1, 3 and 5 μM) at 37 °C for 1 h to measure platelet aggregation, granules release, spreading, thrombin-induced clot retraction and intracellular calcium mobilization. Additionally, Celastrol (2 mg/kg) was intraperitoneally administrated into mice to evaluate hemostasis and thrombosis in vivo. RESULTS Celastrol treatment significantly decreased platelet aggregation and secretion of dense or alpha granules induced by collagen-related peptide (CRP) or thrombin in a dose-dependent manner. Additionally, Celastrol-treated platelets showed a dramatically reduced spreading activity and decreased clot retraction. Moreover, Celastrol administration prolonged tail bleeding time and inhibited formation of arterial/venous thrombosis. Furthermore, Celastrol significantly reduced calcium mobilization. CONCLUSION Celastrol inhibits platelet function and venous/arterial thrombosis, implying that it might be utilized for treating thrombotic diseases.
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Affiliation(s)
- Xiaoqian Li
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Key Laboratory of Bone Marrow Stem Cell, Jiangsu Province, Xuzhou, China
| | - Jie Zhang
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Key Laboratory of Bone Marrow Stem Cell, Jiangsu Province, Xuzhou, China
| | - Yingying Li
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Key Laboratory of Bone Marrow Stem Cell, Jiangsu Province, Xuzhou, China
| | - Yue Dai
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Key Laboratory of Bone Marrow Stem Cell, Jiangsu Province, Xuzhou, China
| | - Hui Zhu
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Key Laboratory of Bone Marrow Stem Cell, Jiangsu Province, Xuzhou, China
| | - Huimin Jiang
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Key Laboratory of Bone Marrow Stem Cell, Jiangsu Province, Xuzhou, China
| | - Yiran Han
- The First Clinical School of Medicine, Xuzhou Medical University, Xuzhou, China
| | - Xiang Chu
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Key Laboratory of Bone Marrow Stem Cell, Jiangsu Province, Xuzhou, China
| | - Yueyue Sun
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Key Laboratory of Bone Marrow Stem Cell, Jiangsu Province, Xuzhou, China
| | - Wen Ju
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Key Laboratory of Bone Marrow Stem Cell, Jiangsu Province, Xuzhou, China
| | - Zhenyu Li
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Key Laboratory of Bone Marrow Stem Cell, Jiangsu Province, Xuzhou, China
| | - Lingyu Zeng
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Key Laboratory of Bone Marrow Stem Cell, Jiangsu Province, Xuzhou, China
| | - Kailin Xu
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Key Laboratory of Bone Marrow Stem Cell, Jiangsu Province, Xuzhou, China
| | - Jianlin Qiao
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China; Key Laboratory of Bone Marrow Stem Cell, Jiangsu Province, Xuzhou, China.
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12
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Qian Z, Zhao N, Xu S, Yuan W. In situ injectable thermoresponsive nanocomposite hydrogel based on hydroxypropyl chitosan for precise synergistic calcium-overload, photodynamic and photothermal tumor therapy. Carbohydr Polym 2024; 324:121487. [PMID: 37985082 DOI: 10.1016/j.carbpol.2023.121487] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 09/21/2023] [Accepted: 10/10/2023] [Indexed: 11/22/2023]
Abstract
Traditional therapies have poor accuracy and significant toxic side effects in the process of tumor treatment. The non-traditional treatment methods with high accuracy and efficacy are worth exploring and investigating. Herein, a strategy that enables precise and synergistic therapies of calcium-overload, photodynamic, and photothermal through facile near infrared (NIR) irradiation was carried out base on the injectable and self-healable hydrogel encapsulating indocyanine green (ICG)-loaded and bovine serum albumin (BSA)-modified calcium peroxide (CaO2) nanoparticles (ICG@CaO2-BSA NPs) and bismuth sulfide (Bi2S3) nanorods. The hydrogel fabricated through the dynamic Schiff-base bonds between hydroxypropyl chitosan (HPCS) and aldehyde-modified Pluronic F127 (F127-CHO) as the delivery substrate for functional substances could adhere and grip tumor tissues due to the adhesion of hydroxyl groups in HPCS and the hydrophobic aggregation caused by thermoresponsiveness of F127-CHO. CaO2 in ICG@CaO2-BSA NPs decomposed in the tumor micro-acidic environment to produce calcium ions (Ca2+) and hydrogen peroxide (H2O2), while ICG generated reactive oxygen species (ROS) under NIR irradiation, the photothermal effect of Bi2S3 nanorods and ICG under NIR irradiation could increase the temperature of tumor tissues and ultimately achieve precise tumor cell destruction. Therefore, this strategy will provide promising prospects for precise and efficient treatment of tumors.
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Affiliation(s)
- Zhiyi Qian
- School of Materials Science and Engineering, Key Laboratory of Advanced Civil Materials of Ministry of Education, Tongji University, Shanghai 201804, People's Republic of China
| | - Nuoya Zhao
- School of Materials Science and Engineering, Key Laboratory of Advanced Civil Materials of Ministry of Education, Tongji University, Shanghai 201804, People's Republic of China
| | - Sicheng Xu
- School of Materials Science and Engineering, Key Laboratory of Advanced Civil Materials of Ministry of Education, Tongji University, Shanghai 201804, People's Republic of China
| | - Weizhong Yuan
- School of Materials Science and Engineering, Key Laboratory of Advanced Civil Materials of Ministry of Education, Tongji University, Shanghai 201804, People's Republic of China.
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13
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Cao R, Jiang H, Liang G, Zhang W. Dynamic nomogram for predicting hungry bone syndrome before parathyroidectomy. Endocrine 2024; 83:196-204. [PMID: 37640988 DOI: 10.1007/s12020-023-03493-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 08/04/2023] [Indexed: 08/31/2023]
Abstract
PURPOSE The objective of this study was to develop a dependable and uncomplicated prediction model utilizing clinical information readily accessible to patients before surgery. This model aimed to assess the likelihood of hungry bone syndrome occurrence in post-surgery patients with secondary hyperparathyroidism (SHPT), and to assist clinicians in adjusting treatment plans promptly. METHODS In this study, we constructed an online nomogram utilizing independent variables determined through multiple logistic regression to predict the probability of HBS occurrence after parathyroidectomy in patients with secondary hyperparathyroidism. To evaluate the precision and dependability of the nomogram, we used receiver operating characteristic (ROC) curve, calibration curve, and decision curve analysis (DCA). RESULTS Multivariate logistic regression analyses on 136 eligible patients identified age, parathyroid hormone (PTH), and blood calcium as independent HBS risk factors, which were then integrated into the nomogram. The area under ROC curve demonstrated the nomogram's strong predictive accuracy. The calibration curve demonstrates consistency between the model's prediction probability and observed probability, reflecting high prediction accuracy of the nomogram. Dynamic nomograms were found to hold significant practical clinical value as demonstrated by clinical decision analysis. It can be accessed on https://min115.shinyapps.io/dynnomapp/ . CONCLUSION In patients with secondary hyperparathyroidism, the dynamic nomogram based on age, parathyroid hormone, and blood calcium can more accurately predict the likelihood of HBS after parathyroidectomy, allowing doctors to make clinical decisions more quickly and adjust treatment plans in a timely manner to reduce the incidence of HBS.
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Affiliation(s)
- Runmin Cao
- Jinzhou Medical University Postgraduate Training Base (Jinzhou Central Hospital), Jinzhou City, Liaoning Province, China
| | - Honghe Jiang
- Anhui University of Science and Technology, Huainan City, Anhui Province, China
| | - Guangpeng Liang
- Jinzhou Medical University Postgraduate Training Base (Jinzhou Central Hospital), Jinzhou City, Liaoning Province, China
| | - Weibin Zhang
- Jinzhou Medical University Postgraduate Training Base (Jinzhou Central Hospital), Jinzhou City, Liaoning Province, China.
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14
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Du NH, Ngoc TTB, Cang HQ, Luyen NTT, Thuoc TL, Le Quan T, Thao DTP. KTt-45, a T-type calcium channel blocker, acts as an anticancer agent by inducing apoptosis on HeLa cervical cancer cell line. Sci Rep 2023; 13:22092. [PMID: 38086845 PMCID: PMC10716508 DOI: 10.1038/s41598-023-47199-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 11/10/2023] [Indexed: 12/18/2023] Open
Abstract
The abnormal expression in the T-type calcium channels is involved in various cancer types, thus inhibiting T-type calcium channels is one of approaches in cancer treatment. The fact that KTt-45 acted as a T-type calcium channel inhibitor as well as a pain-relief agent prompts us to address if KTt-45 plays any role against cancer cells. The results showed that KTt-45 caused cytotoxic effects towards HeLa cervical, Raji lymphoma, MCF-7 breast cancer, and A549 lung cancer cell lines with IC50 values less than 100 μM, in which highly selective toxicity was against HeLa cells (IC50 = 37.4 μM, SI > 3.2). Strikingly, the KTt-45 induced an accumulation of cytoplasmic vacuoles after 48 h treatment and mitochondrial-dependent apoptosis activation as evidenced by morphological features, chromatin condensation, nuclear fragmentation, and significant activation of caspase-9 as well as caspase-3. In conclusion, KTt-45 could inhibit cell growth and trigger mitochondrial-dependent apoptosis in HeLa cervical cancer cells. The results, taken together, strongly demonstrated that KTt-45 is a potential agent for further study on anticancer drug development which not only targets cancer cells but also helps to relieve neuropathic pain in cancer patients.
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Affiliation(s)
- Nguyen Huy Du
- Department of Molecular and Environmental Biotechnology, Faculty of Biology and Biotechnology, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
- Laboratory of Cancer Research, VNU-HCM, University of Science, Duong so 4, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
- Vietnam National University, Ho Chi Minh City, Vo Truong Toan, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
- Central Laboratory of Analysis, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
| | - Truong Thi Bich Ngoc
- Department of Molecular and Environmental Biotechnology, Faculty of Biology and Biotechnology, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
- Laboratory of Cancer Research, VNU-HCM, University of Science, Duong so 4, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
- Vietnam National University, Ho Chi Minh City, Vo Truong Toan, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
| | - Huynh Qui Cang
- Laboratory of Cancer Research, VNU-HCM, University of Science, Duong so 4, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
- Vietnam National University, Ho Chi Minh City, Vo Truong Toan, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
| | - Nguyen Thi Thuy Luyen
- Vietnam National University, Ho Chi Minh City, Vo Truong Toan, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
- Central Laboratory of Analysis, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
- Department of Hydro-Geology-Engineering Geology and Environmental Geology, Faculty of Geology, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
- Department of Medicinal Chemistry, Faculty of Chemistry, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
| | - Tran Linh Thuoc
- Laboratory of Cancer Research, VNU-HCM, University of Science, Duong so 4, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
- Vietnam National University, Ho Chi Minh City, Vo Truong Toan, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
| | - Tran Le Quan
- Vietnam National University, Ho Chi Minh City, Vo Truong Toan, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
- Central Laboratory of Analysis, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
- Department of Hydro-Geology-Engineering Geology and Environmental Geology, Faculty of Geology, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
- Department of Medicinal Chemistry, Faculty of Chemistry, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
| | - Dang Thi Phuong Thao
- Department of Molecular and Environmental Biotechnology, Faculty of Biology and Biotechnology, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam.
- Laboratory of Cancer Research, VNU-HCM, University of Science, Duong so 4, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam.
- Vietnam National University, Ho Chi Minh City, Vo Truong Toan, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam.
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15
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Ali MA, Abu Damir H, Adem MA, Ali OM, Amir N, Shah AAM, Al Muhairi SSM, Al Abdouli KOS, Khawaja JR, Fagieri TA, Adam A, Elkhouly AA, Al Marri ZJ, Jamali M, Murphy D, Adem A. Effects of long-term dehydration on stress markers, blood parameters, and tissue morphology in the dromedary camel ( Camelus dromedarius). Front Vet Sci 2023; 10:1236425. [PMID: 38116506 PMCID: PMC10728728 DOI: 10.3389/fvets.2023.1236425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 10/16/2023] [Indexed: 12/21/2023] Open
Abstract
Introduction Dromedary camels robustly withstand dehydration, and the rough desert environment but the adaptation mechanisms are not well understood. One of these mechanisms is that the dromedary camel increases its body temperature to reduce the process of evaporative cooling during the hot weather. Stress in general, has deleterious effects in the body. In this study, we sought to determine the effects of dehydration and rehydration on stress parameters in the dromedary camels and how it pacifies these effects. Methods Nineteen male camels were randomly divided into control, dehydrated and rehydrated groups, and fed alfalfa hay ad-libitum. The dehydrated and rehydrated groups were water-restricted for 20 days after which the rehydrated camels were provided with water for 72 h. The control and dehydrated camels were slaughtered at day 20 from the start of experiment whereas the rehydrated group was killed 72 h later. Many biochemical, hematological histopathological parameters and gene analysis were performed in relevant tissues collected including blood, plasma, and tissues. Results and discussion It was observed that severely dehydrated camels lost body weight, passed very hard feces, few drops of concentrated urine, and were slightly stressed as reflected behaviorally by loss of appetite. Physiologically, the stress of dehydration elicited modulation of plasma stress hormones for water preservation and energy supply. Our results showed significant increase in cortisol, norepinephrine and dopamine, and significant decrease in epinephrine and serotonin. The significant increase in malondialdehyde was accompanied with significant increase in antioxidants (glutathione, retinol, thiamin, tocopherol) to provide tissue protection from oxidative stress. The physiological blood changes observed during dehydration serve different purposes and were quickly restored to normality by rehydration. The dehydrated/rehydrated camels showed reduced hump size and serous atrophy of perirenal and epicardial fat. The latter changes were accompanied by significantly increased expression of genes encoding proteins for energy production (ANGPTL4, ACSBG1) from fat and significantly decreased expression of genes (THRSP; FADS 1&2) encoding proteins enhancing energy expenditure. This process is vital for camel survival in the desert. Dehydration induced no major effects in the vital organs. Only minor degenerative changes were observed in hepatic and renal cells, physiological cardiomyocyte hypertrophy in heart and follicular hyperplasia in splenic but lipidosis was not depicted in liver hepatocytes. Ketone bodies were not smelled in urine, sweat and breathing of dehydrated animals supporting the previous finding that the ß hydroxybutyrate dehydrogenase, a key enzyme in ketone body formation, is low in the camel liver and rumen. Rehydration restored most of blood and tissues to normal or near normal. In conclusion, camels are adapted to combat dehydration stress and anorexia by increasing anti-stressors and modulating genes involved in fat metabolism.
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Affiliation(s)
- Mahmoud A Ali
- Department of Pharmacology, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Hassan Abu Damir
- Department of Pharmacology, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Muna A Adem
- Department of Pharmacology, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Osman M Ali
- Department of Pharmacology, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Naheed Amir
- Department of Pharmacology, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Asma A M Shah
- Veterinary Laboratory Division, Animal Wealth Sector, Abu Dhabi Food Control Authority, Abu Dhabi, United Arab Emirates
| | - Salama S M Al Muhairi
- Veterinary Laboratory Division, Animal Wealth Sector, Abu Dhabi Food Control Authority, Abu Dhabi, United Arab Emirates
| | - Khaled O S Al Abdouli
- Veterinary Laboratory Division, Animal Wealth Sector, Abu Dhabi Food Control Authority, Abu Dhabi, United Arab Emirates
| | - Javed R Khawaja
- Veterinary Laboratory Division, Animal Wealth Sector, Abu Dhabi Food Control Authority, Abu Dhabi, United Arab Emirates
| | - Tareq A Fagieri
- Veterinary Laboratory Division, Animal Wealth Sector, Abu Dhabi Food Control Authority, Abu Dhabi, United Arab Emirates
| | - Abdelnasir Adam
- Veterinary Laboratory Division, Animal Wealth Sector, Abu Dhabi Food Control Authority, Abu Dhabi, United Arab Emirates
| | - Aboubakr A Elkhouly
- Veterinary Laboratory Division, Animal Wealth Sector, Abu Dhabi Food Control Authority, Abu Dhabi, United Arab Emirates
| | - Zhaya J Al Marri
- Veterinary Laboratory Division, Animal Wealth Sector, Abu Dhabi Food Control Authority, Abu Dhabi, United Arab Emirates
| | - Mohamed Jamali
- Department of Biochemistry, Khawarizmi College, Al-Ain, United Arab Emirates
| | - David Murphy
- Molecular Neuroendocrinology Research Group, Bristol Medical School: Translational Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Abdu Adem
- Department of Pharmacology, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
- Department of Pharmacology, College of Medicine and Health Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
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Dillon DG, Wang RC, Shetty P, Douchee J, Rodriguez RM, Montoy JCC. Efficacy of emergency department calcium administration in cardiac arrest: A 9-year retrospective evaluation. Resuscitation 2023; 191:109933. [PMID: 37562663 PMCID: PMC10529187 DOI: 10.1016/j.resuscitation.2023.109933] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/15/2023] [Accepted: 08/03/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND The efficacy of empiric calcium for patients with undifferentiated cardiac arrest has come under increased scrutiny, including a randomized controlled trial that was stopped early due to a trend towards harm with calcium administration. However, small sample sizes and non-significant findings have hindered precise effect estimates. In this analysis we evaluate the association of calcium administration with survival in a large retrospective cohort of patients with cardiac arrest treated in the emergency department (ED). METHODS We conducted a retrospective review of medical records from two academic hospitals (one quaternary care center, one county trauma center) in San Francisco between 2011 and 2019. Inclusion criteria were patients aged greater than or equal to 18 years old who received treatment for cardiac arrest during their ED course. Our primary exposure was the administration of calcium while in the ED and the main outcome was survival to hospital admission. The association between calcium and survival to admission was estimated using a multivariable log-binomial regression, and also with two propensity score models. RESULTS We examined 781 patients with cardiac arrest treated in San Francisco EDs between 2011 and 2019 and found that calcium administration was associated with decreased survival to hospital admission (RR 0.74; 95% CI 0.66-0.82). These findings remained significant after adjustment for patient age, sex, whether the cardiac arrest was witnessed, and including an interaction term for shockable cardiac rhythms (RR 0.60; 95% CI 0.50-0.72) and non-shockable cardiac rhythms (RR 0.87; 95% CI 0.76-0.99). Risk ratios for the association between calcium and survival to hospital admission were also similar between two propensity score-based models: nearest neighbor propensity matching model (RR 0.79; 95% CI 0.68-0.89) and inverse propensity weighted regression adjustment model (RR 0.75; 95% CI 0.67-0.84). CONCLUSIONS Calcium administration as part of ED-directed treatment for cardiac arrest was associated with lower survival to hospital admission. Given the lack of statistically significant outcomes from smaller, more methodologically robust evaluations on this topic, we believe these findings have an important role to serve in confirming previous results and allowing for more precise effect estimates. Our data adds to the growing body evidence against the empiric use of calcium in cardiac arrest.
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Affiliation(s)
- David G Dillon
- Department of Emergency Medicine, University of California, Davis School of Medicine, Sacramento, CA, USA.
| | - Ralph C Wang
- Department of Emergency Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Pranav Shetty
- Department of Emergency Medicine, University of California, Davis School of Medicine, Sacramento, CA, USA
| | - Jeremiah Douchee
- Columbia University Vagelos College of Physicians and Surgeons, New York-Presbyterian Columbia University Medical Center, New York, NY, USA
| | - Robert M Rodriguez
- Department of Emergency Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Juan Carlos C Montoy
- Department of Emergency Medicine, University of California, San Francisco, San Francisco, CA, USA
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17
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Baruah D, Tamuli R. The cell functions of phospholipase C-1, Ca 2+/H + exchanger-1, and secretory phospholipase A 2 in tolerance to stress conditions and cellulose degradation in Neurospora crassa. Arch Microbiol 2023; 205:327. [PMID: 37676310 DOI: 10.1007/s00203-023-03662-1] [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: 06/04/2023] [Revised: 08/13/2023] [Accepted: 08/17/2023] [Indexed: 09/08/2023]
Abstract
We investigated the cell functions of the Ca2+ signaling genes phospholipase C-1 (plc-1), Ca2+/H+ exchanger (cpe-1), and secretory phospholipase A2 (splA2) for stress responses and cellulose utilization in Neurospora crassa. The Δplc-1, Δcpe-1, and ΔsplA2 mutants displayed increased sensitivity to the alkaline pH and reduced survival during induced thermotolerance. The ΔsplA2 mutant also exhibited hypersensitivity to the DTT-induced endoplasmic reticulum (ER) stress, increased microcrystalline cellulose utilization, increased protein secretion, and glucose accumulation in the culture supernatants. Moreover, the ΔsplA2 mutant could not grow on microcrystalline cellulose during ER stress. Furthermore, plc-1, cpe-1, and splA2 synthetically regulate the acquisition of thermotolerance induced by heat shock, responses to alkaline pH and ER stress, and utilization of cellulose and other alternate carbon sources in N. crassa. In addition, expression of the alkaline pH regulator, pac-3, and heat shock proteins, hsp60, and hsp80 was reduced in the Δplc-1, Δcpe-1, and ΔsplA2 single and double mutants. The expression of the unfolded protein response (UPR) markers grp-78 and pdi-1 was also significantly reduced in the mutants showing growth defect during ER stress. The increased cellulolytic activities of the ΔsplA2 and Δcpe-1; ΔsplA2 mutants were due to increased cbh-1, cbh-2, and endo-2 expression in N. crassa. Therefore, plc-1, cpe-1, and splA2 are involved in stress responses and cellulose utilization in N. crassa.
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Affiliation(s)
- Darshana Baruah
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781 039, India
| | - Ranjan Tamuli
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781 039, India.
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18
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Campelo SN, Huang PH, Buie CR, Davalos RV. Recent Advancements in Electroporation Technologies: From Bench to Clinic. Annu Rev Biomed Eng 2023; 25:77-100. [PMID: 36854260 PMCID: PMC11633374 DOI: 10.1146/annurev-bioeng-110220-023800] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
Over the past decade, the increased adoption of electroporation-based technologies has led to an expansion of clinical research initiatives. Electroporation has been utilized in molecular biology for mammalian and bacterial transfection; for food sanitation; and in therapeutic settings to increase drug uptake, for gene therapy, and to eliminate cancerous tissues. We begin this article by discussing the biophysics required for understanding the concepts behind the cell permeation phenomenon that is electroporation. We then review nano- and microscale single-cell electroporation technologies before scaling up to emerging in vivo applications.
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Affiliation(s)
- Sabrina N Campelo
- Department of Biomedical Engineering and Mechanics, Virginia Tech-Wake Forest School of Biomedical Engineering and Sciences, Virginia Tech, Blacksburg, Virginia, USA;
| | - Po-Hsun Huang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Cullen R Buie
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Rafael V Davalos
- Department of Biomedical Engineering and Mechanics, Virginia Tech-Wake Forest School of Biomedical Engineering and Sciences, Virginia Tech, Blacksburg, Virginia, USA;
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19
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Bieżuńska-Kusiak K, Kulbacka J, Choromańska A, Rembiałkowska N, Michel O, Saczko J. Evaluation of the Anticancer Activity of Calcium Ions Introduced into Human Breast Adenocarcinoma Cells MCF-7/WT and MCF-7/DOX by Electroporation. Pharmaceuticals (Basel) 2023; 16:809. [PMID: 37375757 DOI: 10.3390/ph16060809] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/18/2023] [Accepted: 05/22/2023] [Indexed: 06/29/2023] Open
Abstract
Breast cancer ranks among the top three most common malignant neoplasms in Poland. The use of calcium ion-assisted electroporation is an alternative approach to the classic treatment of this disease. The studies conducted in recent years confirm the effectiveness of electroporation with calcium ions. Electroporation is a method that uses short electrical pulses to create transitional pores in the cell membrane to allow the penetration of certain drugs. The aim of this study was to investigate the antitumor effects of electroporation alone and calcium ion-assisted electroporation on human mammary adenocarcinoma cells that are sensitive (MCF-7/WT) and resistant to doxorubicin (MCF-7/DOX). The cell viability was assessed using independent tests: MTT and SRB. The type of cell death after the applied therapy was determined by TUNEL and flow cytometry (FACS) methods. The expression of Cav3.1 and Cav3.2 proteins of T-type voltage-gated calcium channels was assessed by immunocytochemistry, and changes in the morphology of CaEP-treated cells were visualized using a holotomographic microscope. The obtained results confirmed the effectiveness of the investigated therapeutic method. The results of the work constitute a good basis for planning research at the in vivo level and in the future to develop a more effective and safer method of breast cancer treatment for patients.
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Affiliation(s)
- Katarzyna Bieżuńska-Kusiak
- Department of Molecular and Cellular Biology, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland
| | - Julita Kulbacka
- Department of Molecular and Cellular Biology, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Santariškių 5, 08410 Vilnius, Lithuania
| | - Anna Choromańska
- Department of Molecular and Cellular Biology, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland
| | - Nina Rembiałkowska
- Department of Molecular and Cellular Biology, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland
| | - Olga Michel
- Department of Cytobiochemistry, University of Wroclaw, F. Joliot-Curie 14a, 50-383 Wroclaw, Poland
| | - Jolanta Saczko
- Department of Molecular and Cellular Biology, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland
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20
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Lisec B, Markelc B, Ursic Valentinuzzi K, Sersa G, Cemazar M. The effectiveness of calcium electroporation combined with gene electrotransfer of a plasmid encoding IL-12 is tumor type-dependent. Front Immunol 2023; 14:1189960. [PMID: 37304301 PMCID: PMC10247961 DOI: 10.3389/fimmu.2023.1189960] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/15/2023] [Indexed: 06/13/2023] Open
Abstract
Introduction In calcium electroporation (CaEP), electroporation enables the cellular uptake of supraphysiological concentrations of Ca2+, causing the induction of cell death. The effectiveness of CaEP has already been evaluated in clinical trials; however, confirmatory preclinical studies are still needed to further elucidate its effectiveness and underlying mechanisms. Here, we tested and compared its efficiency on two different tumor models to electrochemotherapy (ECT) and in combination with gene electrotransfer (GET) of a plasmid encoding interleukin-12 (IL-12). We hypothesized that IL-12 potentiates the antitumor effect of local ablative therapies as CaEP and ECT. Methods The effect of CaEP was tested in vitro as well as in vivo in murine melanoma B16-F10 and murine mammary carcinoma 4T1 in comparison to ECT with bleomycin. Specifically, the treatment efficacy of CaEP with increasing calcium concentrations alone or in combination with IL-12 GET in different treatment protocols was investigated. We closely examined the tumor microenvironment by immunofluorescence staining of immune cells, as well as blood vessels and proliferating cells. Results In vitro, CaEP and ECT with bleomycin reduced cell viability in a dose-dependent manner. We observed no differences in sensitivity between the two cell lines. A dose-dependent response was also observed in vivo; however, the efficacy was better in 4T1 tumors than in B16-F10 tumors. In 4T1 tumors, CaEP with 250 mM Ca resulted in more than 30 days of growth delay, which was comparable to ECT with bleomycin. In contrast, adjuvant peritumoral application of IL-12 GET after CaEP prolonged the survival of B16-F10, but not 4T1-bearing mice. Moreover, CaEP with peritumoral IL-12 GET modified tumor immune cell populations and tumor vasculature. Conclusions Mice bearing 4T1 tumors responded better to CaEP in vivo than mice bearing B16-F10 tumors, even though a similar response was observed in vitro. Namely, one of the most important factors might be involvement of the immune system. This was confirmed by the combination of CaEP or ECT with IL-12 GET, which further enhanced antitumor effectiveness. However, the potentiation of CaEP effectiveness was also highly dependent on tumor type; it was more pronounced in poorly immunogenic B16-F10 tumors compared to moderately immunogenic 4T1 tumors.
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Affiliation(s)
- Barbara Lisec
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Ljubljana, Slovenia
| | - Bostjan Markelc
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Ljubljana, Slovenia
- Faculty of Health Sciences, University of Ljubljana, Ljubljana, Slovenia
| | - Katja Ursic Valentinuzzi
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Ljubljana, Slovenia
- Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Gregor Sersa
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Ljubljana, Slovenia
- Faculty of Health Sciences, University of Ljubljana, Ljubljana, Slovenia
| | - Maja Cemazar
- Department of Experimental Oncology, Institute of Oncology Ljubljana, Ljubljana, Slovenia
- Faculty of Health Sciences, University of Primorska, Izola, Slovenia
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21
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Jiao C, Gong S, Shi M, Guo L, Jiang Y, Man C. Depletion of reactive oxygen species induced by beetroot (Beta vulgaris) extract leads to apoptosis-like death in Cronobacter sakazakii. J Dairy Sci 2023; 106:3827-3837. [PMID: 37105876 DOI: 10.3168/jds.2022-22425] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 11/22/2022] [Indexed: 04/29/2023]
Abstract
This research aimed to disclose the antibacterial activity of beetroot extract (Beta vulgaris) against Cronobacter sakazakii and its possible mechanisms. We evaluated its antibacterial activity by measuring the minimum inhibitory concentration (MIC) and time-kill kinetics. We also evaluated the intracellular ATP levels, bacterial apoptosis-like death (ALD), and reactive oxygen species (ROS) levels to reveal the possible antibacterial mechanisms. Our results showed that the MIC of beetroot extract against C. sakazakii was 25 mg/mL and C. sakazakii (approximately 8 log cfu/mL) was completely inhibited after treatment with 2 MIC of beetroot extract for 3 h. Beetroot extract reduced intracellular ATP levels and facilitated characteristics of ALD in C. sakazakii, such as membrane depolarization, increased intracellular Ca2+ levels, phosphatidylserine externalization, caspase-like protein activation, and DNA fragmentation. Additionally, and different from most bacterial ALD caused by the accumulation of ROS, beetroot extract reduced the intracellular ROS levels in C. sakazakii. Our experimental data provide a rationale for further research of bacterial ALD and demonstrate that beetroot extract can inhibit C. sakazakii in food processing environments.
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Affiliation(s)
- Chaoqin Jiao
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, 150030, China
| | - Shaoying Gong
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, 150030, China
| | - Mingwei Shi
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, 150030, China
| | - Ling Guo
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, 150030, China.
| | - Yujun Jiang
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, 150030, China.
| | - Chaoxin Man
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, 150030, China
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22
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Overmeyer C, Jorgensen K, Vohra BPS. The Translocase of the Outer Mitochondrial Membrane (TOM40) is required for mitochondrial dynamics and neuronal integrity in Dorsal Root Ganglion Neurons. Mol Cell Neurosci 2023; 125:103853. [PMID: 37100265 DOI: 10.1016/j.mcn.2023.103853] [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: 02/28/2023] [Revised: 04/04/2023] [Accepted: 04/12/2023] [Indexed: 04/28/2023] Open
Abstract
Polymorphisms and altered expression of the Translocase of the Outer Mitochondrial Membrane - 40 kD (Tom40) are observed in neurodegenerative disease subjects. We utilized in vitro cultured dorsal root ganglion (DRG) neurons to investigate the association of TOM40 depletion to neurodegeneration, and to unravel the mechanism of neurodegeneration induced by decreased levels of TOM40 protein. We provide evidence that severity of neurodegeneration induced in the TOM40 depleted neurons increases with the increase in the depletion of TOM40 and is exacerbated by an increase in the duration of TOM40 depletion. We also demonstrate that TOM40 depletion causes a surge in neuronal calcium levels, decreases mitochondrial motility, increases mitochondrial fission, and decreases neuronal ATP levels. We observed that alterations in the neuronal calcium homeostasis and mitochondrial dynamics precede BCL-xl and NMNAT1 dependent neurodegenerative pathways in the TOM40 depleted neurons. This data also suggests that manipulation of BCL-xl and NMNAT1 may be of therapeutic value in TOM40 associated neurodegenerative disorders.
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Affiliation(s)
| | - Kylie Jorgensen
- Department of Biology, William Jewell College Liberty, MO 64068
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23
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Liu Y, Ali A, Su JF, Li K, Hu RZ, Wang Z. Microbial-induced calcium carbonate precipitation: Influencing factors, nucleation pathways, and application in waste water remediation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 860:160439. [PMID: 36574549 DOI: 10.1016/j.scitotenv.2022.160439] [Citation(s) in RCA: 33] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 11/19/2022] [Accepted: 11/19/2022] [Indexed: 06/17/2023]
Abstract
Microbial-induced calcium carbonate precipitation (MICP) is a technique that uses the metabolic action of microorganisms to produce CO32- which combines with free Ca2+ to form CaCO3 precipitation. It has gained widespread attention in water treatment, aimed with the advantages of simultaneous removal of multiple pollutants, environmental protection, and ecological sustainability. This article reviewed the mechanism of MICP at both intra- and extra-cellular levels. It summarized the parameters affecting the MICP process in terms of bacterial concentration, ambient temperature, etc. The current status of MICP application in practical engineering is discussed. Based on this, the current technical difficulties faced in the use of MICP technology were outlined, and future research directions for MICP technology were highlighted. This review helps to improve the design of existing water treatment facilities for the simultaneous removal of multiple pollutants using the MICP and provides theoretical reference and innovative thinking for related research.
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Affiliation(s)
- Yu Liu
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Amjad Ali
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Jun-Feng Su
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Kai Li
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Rui-Zhu Hu
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Zhao Wang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
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24
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Ghanaatfar F, Ghanaatfar A, Isapour P, Farokhi N, Bozorgniahosseini S, Javadi M, Gholami M, Ulloa L, Coleman-Fuller N, Motaghinejad M. Is lithium neuroprotective? An updated mechanistic illustrated review. Fundam Clin Pharmacol 2023; 37:4-30. [PMID: 35996185 DOI: 10.1111/fcp.12826] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 06/17/2022] [Accepted: 08/19/2022] [Indexed: 01/25/2023]
Abstract
Neurodegeneration is a pathological process characterized by progressive neuronal impairment, dysfunction, and loss due to mitochondrial dysfunction, oxidative stress, inflammation, and apoptosis. Many studies have shown that lithium protects against neurodegeneration. Herein, we summarize recent clinical and laboratory studies on the neuroprotective effects of lithium against neurodegeneration and its potential to modulate mitochondrial dysfunction, oxidative stress, inflammation, and apoptosis. Recent findings indicate that lithium regulates critical intracellular pathways such as phosphatidylinositol-3 (PI3)/protein kinase B (Akt)/glycogen synthase kinase-3 (GSK3β) and PI3/Akt/response element-binding protein (CREB)/brain-derived neurotrophic factor (BDNF). We queried PubMed, Web of Science, Scopus, Elsevier, and other related databases using search terms related to lithium and its neuroprotective effect in various neurodegenerative diseases and events from January 2000 to May 2022. We reviewed the major findings and mechanisms proposed for the effects of lithium. Lithium's neuroprotective potential against neural cell degeneration is mediated by inducing anti-inflammatory factors, antioxidant enzymes, and free radical scavengers to prevent mitochondrial dysfunction. Lithium effects are regulated by two essential pathways: PI3/Akt/GSK3β and PI3/Akt/CREB/BDNF. Lithium acts as a neuroprotective agent against neurodegeneration by preventing inflammation, oxidative stress, apoptosis, and mitochondrial dysfunction using PI3/Akt/GSK3β and PI3/Akt/CREB/BDNF signaling pathways.
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Affiliation(s)
- Fateme Ghanaatfar
- Student Research Committee, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Ghanaatfar
- Student Research Committee, Qom University of Medical Sciences, Qom, Iran
| | - Parisa Isapour
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Negin Farokhi
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Chemistry, Pharmaceutical Sciences Branch, Islamic Azad University (IUAPS), Tehran, Iran
| | | | - Mahshid Javadi
- Chronic Respiratory Disease Research Center (CRDRC), National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mina Gholami
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Luis Ulloa
- Center for Perioperative Organ Protection, Department of Anesthesiology, Duke University, Durham, North Carolina, USA
| | - Natalie Coleman-Fuller
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, Minnesota, USA
| | - Majid Motaghinejad
- Chronic Respiratory Disease Research Center (CRDRC), National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
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25
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Sharma V, Dhawan S, Kumar A, Kaur J. P19 a Parthenin Analog Induces Cell Lineage Dependent Apoptotic and Immunomodulatory Signaling in Acute Lymphoid Leukemia Cells. INTERNATIONAL JOURNAL OF MOLECULAR AND CELLULAR MEDICINE 2023; 12:1-17. [PMID: 37942260 PMCID: PMC10629723 DOI: 10.22088/ijmcm.bums.12.1.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 09/30/2023] [Accepted: 09/30/2023] [Indexed: 11/10/2023]
Abstract
Leukemia is a type of cancer that affects the blood and bone marrow. Acute lymphoid leukaemia, also known as ALL, is regarded as one of the deadliest forms of cancer. Due to the rapid increase in various cancer cases and the development of resistance in cancer cells, it is necessary to identify novel lead molecules with more potent anticancer properties. There is a growing interest in using herbal products/analogs as multi-component agents (as anticancer agents and immunomodulators) for cancer treatment. In the present investigation, an attempt has been made to explore the anticancer and immunomodulatory activity of P19, an analog of parthenin in ALL. P19 was reported to exhibit anticancer efficacy by triggering apoptotic signaling events in human leukaemia HL-60 cells by significant NO production. In contrast to this finding, ROS and NO were not required for P19-mediated apoptosis in Raji cells. The mechanism of action of P19 was observed to be cancer cell lineage dependent. P19 demonstrated very effective anticancer properties against ALL (IC50 3µM). Molecular investigations revealed that P19 induced mitochondrion mediated apoptosis by Bax localization to mitochondria and enhanced cytosolic calcium in the cytoplasm. Further activation of the caspase 3, caspase 8 and PARP cleavage suggested the involvement of the caspase-mediated apoptosis. Anti-proliferative activity revealed the telomerase inhibition and cell cycle arrest in G0/G1 phase after P19 treatment. Immunomodulatory effects of the P19 revealed the enhanced INFɣ and NO production in Jurkat and THP cells. Owing to its antiproliferative and immunomodulatory potential against leukemia cells P19 can further be explored as effective therapeutics against leukemia.
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Affiliation(s)
- Vishal Sharma
- Department of Biotechnology, Panjab University, Chandigarh, India.
| | - Samriti Dhawan
- Department of Biotechnology, Goswami Ganesh Dutta Sanatan Dharma College, Chandigarh, India.
| | - Ajay Kumar
- Pharmacology Division, Indian Institute of Integrative Medicine, Jammu, India.
| | - Jagdeep Kaur
- Department of Biotechnology, Panjab University, Chandigarh, India.
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26
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Treatment of cervical cancer by electrochemotherapy with bleomycin, cisplatin, and calcium: an in vitro experimental study. Med Oncol 2022; 40:52. [DOI: 10.1007/s12032-022-01921-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 12/01/2022] [Indexed: 12/23/2022]
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27
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Mao T, Ye W, Dai M, Bian D, Zhu Q, Feng P, Ren Y, Li F, Li B. Mechanism of autophagy induced by low concentrations of chlorantraniliprole in silk gland, Bombyx mori. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2022; 188:105223. [PMID: 36464330 DOI: 10.1016/j.pestbp.2022.105223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 08/19/2022] [Accepted: 09/01/2022] [Indexed: 06/17/2023]
Abstract
Chlorantraniliprole (CAP) is widely used in the control of agricultural pests, and its residues can affect the formation of silkworm (Bombyx. mori) cocoon easily. To accurately evaluate the toxicity of CAP to silkworms and clarify the mechanism of its effect on silk gland function, we proposed a novel toxicity evaluation method based on the body weight changes after CAP exposure. We also analyzed the Ca2+-related ATPase activity, characterized energy metabolism and transcriptional changes about the autophagy key genes on the downstream signaling pathways. The results showed that after a low concentration of CAP exposed for 96 h, there were CAP residues in the silk glands of B. mori, the activities of Ca2+-ATPase and Ca2+-Mg2+-ATPase decreased significantly (P ≤ 0.01), and the activation of AMPK-related genes AMPK-α and AMPK-β were up-regulated by 6.39 ± 0.02-fold and 12.33 ± 1.06-fold, respectively, reaching a significant level (P ≤ 0.01)). In addition, the autophagy-related genes Atg1, Atg6, Atg5, Atg7, and Atg8 downstream AMPK were significantly up-regulated at 96 h (P ≤ 0.05). The results of immunohistochemistry and protein expression assay for autophagy marker Atg8 further confirmed the occurrence of autophagy. Overall, our results indicate that CAP exposure leads to autophagy in the silk gland of B. mori and affects their physiological functions, which provides guidance for the evaluation of toxicity of low concentration environmental CAP residues to insects.
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Affiliation(s)
- Tingting Mao
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Wentao Ye
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Minli Dai
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Dandan Bian
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Qingyu Zhu
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Piao Feng
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Yuying Ren
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Fanchi Li
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China; Sericulture Institute of Soochow University, Suzhou, Jiangsu 215123, PR China.
| | - Bing Li
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China; Sericulture Institute of Soochow University, Suzhou, Jiangsu 215123, PR China.
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28
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Förderer A, Li E, Lawson AW, Deng YN, Sun Y, Logemann E, Zhang X, Wen J, Han Z, Chang J, Chen Y, Schulze-Lefert P, Chai J. A wheat resistosome defines common principles of immune receptor channels. Nature 2022; 610:532-539. [PMID: 36163289 PMCID: PMC9581773 DOI: 10.1038/s41586-022-05231-w] [Citation(s) in RCA: 89] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 08/11/2022] [Indexed: 01/17/2023]
Abstract
Plant intracellular nucleotide-binding leucine-rich repeat receptors (NLRs) detect pathogen effectors to trigger immune responses1. Indirect recognition of a pathogen effector by the dicotyledonous Arabidopsis thaliana coiled-coil domain containing NLR (CNL) ZAR1 induces the formation of a large hetero-oligomeric protein complex, termed the ZAR1 resistosome, which functions as a calcium channel required for ZAR1-mediated immunity2-4. Whether the resistosome and channel activities are conserved among plant CNLs remains unknown. Here we report the cryo-electron microscopy structure of the wheat CNL Sr355 in complex with the effector AvrSr356 of the wheat stem rust pathogen. Direct effector binding to the leucine-rich repeats of Sr35 results in the formation of a pentameric Sr35-AvrSr35 complex, which we term the Sr35 resistosome. Wheat Sr35 and Arabidopsis ZAR1 resistosomes bear striking structural similarities, including an arginine cluster in the leucine-rich repeats domain not previously recognized as conserved, which co-occurs and forms intramolecular interactions with the 'EDVID' motif in the coiled-coil domain. Electrophysiological measurements show that the Sr35 resistosome exhibits non-selective cation channel activity. These structural insights allowed us to generate new variants of closely related wheat and barley orphan NLRs that recognize AvrSr35. Our data support the evolutionary conservation of CNL resistosomes in plants and demonstrate proof of principle for structure-based engineering of NLRs for crop improvement.
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Affiliation(s)
- Alexander Förderer
- Institute of Biochemistry, University of Cologne, Cologne, Germany
- Max Planck Institute for Plant Breeding Research, Cologne, Germany
| | - Ertong Li
- Institute of Biochemistry, University of Cologne, Cologne, Germany
- Max Planck Institute for Plant Breeding Research, Cologne, Germany
| | - Aaron W Lawson
- Max Planck Institute for Plant Breeding Research, Cologne, Germany
| | - Ya-Nan Deng
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China; Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Yue Sun
- Beijing Advanced Innovation Center for Structural Biology, Tsinghua-Peking Joint Center for Life Sciences, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Elke Logemann
- Max Planck Institute for Plant Breeding Research, Cologne, Germany
| | - Xiaoxiao Zhang
- Beijing Advanced Innovation Center for Structural Biology, Tsinghua-Peking Joint Center for Life Sciences, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Jie Wen
- Beijing Advanced Innovation Center for Structural Biology, Tsinghua-Peking Joint Center for Life Sciences, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Zhifu Han
- Beijing Advanced Innovation Center for Structural Biology, Tsinghua-Peking Joint Center for Life Sciences, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, China
| | - Junbiao Chang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Henan Normal University, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Yuhang Chen
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China; Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China.
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China.
| | | | - Jijie Chai
- Institute of Biochemistry, University of Cologne, Cologne, Germany.
- Max Planck Institute for Plant Breeding Research, Cologne, Germany.
- Beijing Advanced Innovation Center for Structural Biology, Tsinghua-Peking Joint Center for Life Sciences, Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, China.
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Qu J, Wang Q, Sun X, Li Y. The environment and female reproduction: Potential mechanism of cadmium poisoning to the growth and development of ovarian follicle. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 244:114029. [PMID: 36055045 DOI: 10.1016/j.ecoenv.2022.114029] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/24/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
Cadmium (Cd) is ubiquitous in our environment and can easily bioaccumulate into the organism after passage through the respiratory and digestive tracts. Long-term exposure to Cd can result in the significant bioaccumulation in organism because of its long biological high-life (10-30 years), which exerts irreversible damages on the health of animals and humans. Although there are increased evidence of impeding the normal function of female reproduction resulted from Cd exposure, the mechanism of the negative action of Cd on the growth and development of ovarian follicle remains enigmatic. Thus, the purpose of the presented study is to summarize available literature which describing Cd-related toxicity involved in the adverse effects on the growth and development of the ovarian follicle. In conclusion, it is suggested that Cd causes damage to the folliculogenesis of mammalians, which results in the decline in the number and quality of ovulated oocytes and the failure in the fertilization. The mechanism behinds that may be linked to the interference to the production of reproductive hormones and the augment of reactive oxygen species (ROS). Furthermore, the enhanced ROS, in turn, impairs various molecules including proteins, lipids and DNA, as well as the balance of the antioxidant defense system, mitochondrial homeostasis, endoplasmic reticulum, autophagy and epigenetic modification. This review is expected to elaborate the toxic mechanism of Cd exposure to the growth and development of ovarian follicles and provide essential remediation strategies to alleviate the damage of Cd to female reproductive health.
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Affiliation(s)
- Jingwen Qu
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Department of Animal Science, University of Vermont, Burlington, VT 05405, USA.
| | - Qiang Wang
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
| | - Xiaomei Sun
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
| | - Yongjun Li
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
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Pre-hospital blood products and calcium replacement protocols in UK critical care services: A survey of current practice. Resusc Plus 2022; 11:100282. [PMID: 35968196 PMCID: PMC9364118 DOI: 10.1016/j.resplu.2022.100282] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 07/18/2022] [Accepted: 07/19/2022] [Indexed: 11/23/2022] Open
Abstract
Introduction In the United Kingdom, prehospital blood products are increasingly carried for the early resuscitation of hypovolaemia in patients who are shocked or in cardiac arrest. There is an association between hypocalcaemia and mortality in trauma patients, but no current national guidelines on the timing or dose of calcium replacement exist. The objective of this study was to establish the availability of prehospital blood products, and the current calcium replacement protocols used by UK prehospital services. Methods A cross sectional survey of all UK air ambulances and additional prehospital critical care organisations was conducted in April-May 2022 via an on-line questionnaire. The survey asked 11 questions about availability of prehospital blood products, calcium replacement for patients requiring prehospital blood products, and the use of point of care testing. Results There was a 100% response rate with 20/22 UK air ambulances carrying blood products and five additional prehospital services identified. There were 15 different combinations of prehospital blood products. 23/25 services had a standard operating procedure for the replacement of calcium. This was recommended before any blood product administration in 5 services (22%), during or after the 1st unit in 5 services (22%), during or after the 2nd unit in 6 services (26%) and during or after the 4th unit in 7 services (30%). Only six services carried point of care testing and no services routinely used this to measure calcium levels in patients requiring prehospital blood products. Conclusion In 2022, 91% of UK air ambulances carry prehospital blood products and there is significant variation between services in the combination of blood products provided. There is no consensus on the timing or dose of calcium replacement. Further prospective research should examine the association between traumatic bleeding and ionized calcium levels before and during blood product transfusion in order to produce more robust guidelines for routine calcium replacement.
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Liu X, Tang J, Chen XZ. Role of PKD2 in the endoplasmic reticulum calcium homeostasis. Front Physiol 2022; 13:962571. [PMID: 36035467 PMCID: PMC9399649 DOI: 10.3389/fphys.2022.962571] [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: 06/06/2022] [Accepted: 07/15/2022] [Indexed: 11/25/2022] Open
Abstract
Autosomal dominant polycystic kidney disease (ADPKD) is caused by mutations in the PKD1 or PKD2 gene which encodes membrane receptor PKD1 and cation channel PKD2, respectively. PKD2, also called transient receptor potential polycystin-2 (TRPP2), is a Ca2+-permeable channel located on the membrane of cell surface, primary cilia, and endoplasmic reticulum (ER). Ca2+ is closely associated with diverse cellular functions. While ER Ca2+ homeostasis depends on different Ca2+ receptors, channels and transporters, the role of PKD2 within the ER remains controversial. Whether and how PKD2-mediated ER Ca2+ leak relates to ADPKD pathogenesis is not well understood. Here, we reviewed current knowledge about the biophysical and physiological properties of PKD2 and how PKD2 contributes to ER Ca2+ homeostasis.
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Affiliation(s)
- Xiong Liu
- Membrane Protein Disease Research Group, Department of Physiology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Jingfeng Tang
- National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Hubei University of Technology, Wuhan, HB, China
| | - Xing-Zhen Chen
- Membrane Protein Disease Research Group, Department of Physiology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- *Correspondence: Xing-Zhen Chen,
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Vafaei-Nezhad S, Niknazar S, Payvandi AA, Shirazi Tehrani A, Ahmady Roozbahany N, Ahrabi B, Abbaszadeh HA, Darabi S. Therapeutic Effects of Photobiomodulation Therapy on Multiple Sclerosis by Regulating the Inflammatory Process and Controlling Immune Cell Activity: A Novel Promising Treatment Target. J Lasers Med Sci 2022; 13:e32. [PMID: 36743142 PMCID: PMC9841388 DOI: 10.34172/jlms.2022.32] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/25/2022] [Indexed: 11/22/2022]
Abstract
Introduction: Multiple sclerosis (MS) is one of the autoimmune and chronic diseases of the central nervous system; this disease occurs more frequently in young people and women and leads to neurological symptoms. Oxidative stress, inflammatory processes, and oligodendrocyte dysfunction have a pivotal role in the pathophysiology of this disease. Nowadays it is reported that photobiomodulation (PBM) as a non-invasive treatment has neuroprotective potential, but the exact mechanisms are not understood. Methods: In this study, we reviewed the effects of PBM on MS. In this regard, we used the keywords "Photobiomodulation", "Laser therapy", and "Low-level laser therapy" on MS to find related studies on this subject in PubMed, Google scholar, Elsevier, Medline, and Scopus databases. Results: PBM has positive effects on MS by regulating the inflammatory process, controlling immune cell activity and mitochondrial functions, as well as inhibiting free radicals production which finally leads to a reduction in neurological defects and an improvement in the functional status of patients. Conclusion: Overall, researchers have suggested the use of laser therapy in neurodegenerative diseases due to its numerous therapeutic effects.
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Affiliation(s)
- Saeed Vafaei-Nezhad
- Department of Anatomical Sciences, School of Medicine, Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran,Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Somayeh Niknazar
- Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Hearing Disorders Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Asghar Payvandi
- Hearing Disorders Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atefeh Shirazi Tehrani
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Navid Ahmady Roozbahany
- Hearing Disorders Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Behnaz Ahrabi
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hojjat Allah Abbaszadeh
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Hearing Disorders Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Correspondence to Hojjat Allah Abbaszadeh, Hearing Disorders Research Center, Loghman Hakim Hospital;
; Shahram Darabi, Cellular and Molecular Research Center, Research Institute for NonCommunicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran;
| | - Shahram Darabi
- Cellular and Molecular Research Center, Research Institute for Non-Communicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran,Correspondence to Hojjat Allah Abbaszadeh, Hearing Disorders Research Center, Loghman Hakim Hospital;
; Shahram Darabi, Cellular and Molecular Research Center, Research Institute for NonCommunicable Diseases, Qazvin University of Medical Sciences, Qazvin, Iran;
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Jazbec V, Jerala R, Benčina M. Proteolytically Activated CRAC Effectors through Designed Intramolecular Inhibition. ACS Synth Biol 2022; 11:2756-2765. [PMID: 35802180 PMCID: PMC9396659 DOI: 10.1021/acssynbio.2c00151] [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: 11/30/2022]
Abstract
![]()
Highly regulated intracellular calcium entry affects
numerous cellular
physiological events. External regulation of intracellular calcium
signaling presents a great opportunity for the artificial regulation
of cellular activity. Calcium entry can be mediated by STIM proteins
interacting with Orai calcium channels; therefore, the STIM1–Orai1
pair has become a tool for artificially modulating calcium entry.
We report on an innovative genetically engineered protease-activated
Orai activator called PACE. CAD self-dimerization and activation were
inhibited with a coiled-coil forming peptide pair linked to CAD via
a protease cleavage site. PACE generated sustained calcium entry after
its activation with a reconstituted split protease. We also generated
PACE, whose transcriptional activation of NFAT was triggered by PPV
or TEV protease. Using PACE, we successfully activated the native
NFAT signaling pathway and the production of cytokines in a T-cell
line. PACE represents a useful tool for generating sustained calcium
entry to initiate calcium-dependent protein translation. PACE provides
a promising template for the construction of links between various
protease activation pathways and calcium signaling.
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Affiliation(s)
- Vid Jazbec
- Department of Synthetic Biology and Immunology, National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia.,Interfaculty Doctoral Study of Biomedicine, University of Ljubljana, SI-1000 Ljubljana, Slovenia
| | - Roman Jerala
- Department of Synthetic Biology and Immunology, National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia.,EN-FIST Centre of Excellence, Trg Osvobodilne fronte 13, SI-1000 Ljubljana, Slovenia
| | - Mojca Benčina
- Department of Synthetic Biology and Immunology, National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia.,EN-FIST Centre of Excellence, Trg Osvobodilne fronte 13, SI-1000 Ljubljana, Slovenia
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Kraemer MM, Tsimpaki T, Berchner-Pfannschmidt U, Bechrakis NE, Seitz B, Fiorentzis M. Calcium Electroporation Reduces Viability and Proliferation Capacity of Four Uveal Melanoma Cell Lines in 2D and 3D Cultures. Cancers (Basel) 2022; 14:cancers14122889. [PMID: 35740554 PMCID: PMC9221408 DOI: 10.3390/cancers14122889] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/06/2022] [Accepted: 06/09/2022] [Indexed: 12/07/2022] Open
Abstract
Simple Summary Calcium electroporation (CaEP) is an innovative anti-tumor treatment modality that induces cell death by introducing supraphysiological concentrations of calcium into cells with a limited effect on normal cells. The objective of the present study is to assess the effect of CaEP in uveal melanoma (UM) cell lines in comparison to electrochemotherapy (ECT) with bleomycin using 2D monolayer cell cultures as well as 3D tumor spheroid models in four different UM cell lines. The morphological changes of the spheroids, the cell viability, growth rate as well as the cytotoxic effect of electroporation (EP) with calcium chloride and bleomycin were evaluated with various drug concentrations. The results of CaEP and ECT both suggest a comparable dose-dependent reduction in cell viability and proliferation rate in all tested 2D cell lines and 3D tumor spheroids. These data point out that CaEP is an established anticancer treatment causing cell death by ATP depletion in in vitro and in vivo, representing an efficient alternative therapy with a lower cytotoxic potency for the local UM tumor control. Abstract Electrochemotherapy (ECT) is the combination of transient pore formation following electric pulse application with the administration of cytotoxic drugs, which enhances the cytotoxic effect of the applied agent due to membrane changes and permeabilization. Although EP represents an established therapeutic option for solid malignancies, recent advances shift to the investigation of non-cytotoxic agents, such as calcium, which can also induce cell death. The present study aims to evaluate the cytotoxic effect, the morphological changes in tumor spheroids, the effect on the cell viability, and the cell-specific growth rate following calcium electroporation (CaEP) in uveal melanoma (UM) 2D monolayer cell cultures as well as in 3D tumor spheroid models. The experiments were conducted in four cell lines, UM92.1, Mel270, and two primary UM cell lines, UPMD2 and UPMM3 (UPM). The 2D and 3D UM cell cultures were electroporated with eight rectangular pulses (100 µs pulse duration, 5 Hz repetition frequency) of a 1000 V/cm pulse strength alone or in combination with 0.11 mg/mL, 0.28 mg/mL, 0.55 mg/mL or 1.11 mg/mL calcium chloride or 1.0 µg/mL or 2.5 µg/mL bleomycin. The application of calcium chloride alone induced an ATP reduction only in the UM92.1 2D cell cultures. Calcium alone had no significant effect on ATP levels in all four UM spheroids. A significant decrease in the intracellular adenosine triphosphate (ATP) level was documented in all four 2D and 3D cell cultures for both CaEP as well as ECT with bleomycin. The results suggest a dose-dependent ATP depletion with a wide range of sensitivity among the tested UM cell lines, control groups, and the applied settings in both 2D monolayer cell cultures and 3D tumor spheroid models. The colony formation capacity of the cell lines after two weeks reduced significantly after CaEP only with 0.5 mg/mL and 1.1 mg/mL, whereas the same effect could be achieved with both applied bleomycin concentrations, 1.0 µg/mL and 2.5 µg/mL, for the ECT group. The specific growth rate on day 7 following CaEP was significantly reduced in UM92.1 cell lines with 0.5 and 1.1 mg/mL calcium chloride, while Mel270 showed a similar effect only after administration of 1.1 mg/mL. UM92.1 and Mel270 spheroids exhibited lower adhesion and density after CaEP on day three in comparison to UPM spheroids showing detachment after day 7 following treatment. CaEP and bleomycin electroporation significantly reduce cell viability at similar applied voltage settings. CaEP may be a feasible and inexpensive therapeutic option for the local tumor control with fewer side effects, in comparison to other chemotherapeutic agents, for the treatment of uveal melanoma. The limited effect on normal cells and the surrounding tissue has already been investigated, but further research is necessary to clarify the effect on the surrounding tissue and to facilitate its application in a clinical setting for the eye.
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Affiliation(s)
- Miriam M. Kraemer
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (M.M.K.); (T.T.); (U.B.-P.); (N.E.B.)
| | - Theodora Tsimpaki
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (M.M.K.); (T.T.); (U.B.-P.); (N.E.B.)
| | - Utta Berchner-Pfannschmidt
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (M.M.K.); (T.T.); (U.B.-P.); (N.E.B.)
| | - Nikolaos E. Bechrakis
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (M.M.K.); (T.T.); (U.B.-P.); (N.E.B.)
| | - Berthold Seitz
- Department of Ophthalmology, Saarland University Medical Center, Kirrberger Str. 100, 66421 Homburg, Germany;
| | - Miltiadis Fiorentzis
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (M.M.K.); (T.T.); (U.B.-P.); (N.E.B.)
- Correspondence: ; Tel.: +49-723-2900
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Solovieva M, Shatalin Y, Odinokova I, Krestinina O, Baburina Y, Mishukov A, Lomovskaya Y, Pavlik L, Mikheeva I, Holmuhamedov E, Akatov V. Disulfiram oxy-derivatives induce entosis or paraptosis-like death in breast cancer MCF-7 cells depending on the duration of treatment. Biochim Biophys Acta Gen Subj 2022; 1866:130184. [PMID: 35660414 DOI: 10.1016/j.bbagen.2022.130184] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/26/2022] [Accepted: 05/28/2022] [Indexed: 01/12/2023]
Abstract
BACKGROUND Dithiocarbamates and derivatives (including disulfiram, DSF) are currently investigated as antineoplastic agents. We have revealed earlier the ability of hydroxocobalamin (vitamin В12b) combined with diethyldithiocarbamate (DDC) to catalyze the formation of highly cytotoxic oxidized derivatives of DSF (DSFoxy, sulfones and sulfoxides). METHODS Electron and fluorescent confocal microscopy, molecular biology and conventional biochemical techniques were used to study the morphological and functional responses of MCF-7 human breast cancer cells to treatment with DDC and B12b alone or in combination. RESULTS DDC induces unfolded protein response in MCF-7 cells. The combined use of DDC and B12b causes MCF-7 cell death. Electron microscopy revealed the separation of ER and nuclear membranes, leading to the formation of both cytoplasmic and perinuclear vacuoles, with many fibers inside. The process of vacuolization coincided with the appearance of ER stress markers, a marked damage to mitochondria, a significant inhibition of 20S proteasome, and actin depolimerization at later stages. Specific inhibitors of apoptosis, necroptosis, autophagy, and ferroptosis did not prevent cell death. A short- time (6-h) exposure to DSFoxy caused a significant increase in the number of entotic cells. CONCLUSIONS These observations indicate that MCF-7 cells treated with a mixture of DDC and B12b die by the mechanism of paraptosis. A short- time exposure to DSFoxy caused, along with paraptosis, a significant activation of the entosis and its final stage, lysosomal cell death. GENERAL SIGNIFICANCE The results obtained open up opportunities for the development of new approaches to induce non-apoptotic death of cancer cells by dithiocarbamates.
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Affiliation(s)
- Marina Solovieva
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow region 142290, Russia
| | - Yuri Shatalin
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow region 142290, Russia.
| | - Irina Odinokova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow region 142290, Russia
| | - Olga Krestinina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow region 142290, Russia
| | - Yulia Baburina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow region 142290, Russia
| | - Artem Mishukov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow region 142290, Russia; Laboratory of Biorheology and Biomechanics, Center for Theoretical Problems of Physicochemical Pharmacology RAS, Moscow 109029, Russian Federation
| | - Yana Lomovskaya
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow region 142290, Russia
| | - Liubov Pavlik
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow region 142290, Russia
| | - Irina Mikheeva
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow region 142290, Russia
| | - Ekhson Holmuhamedov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow region 142290, Russia; Department of Pharmacology, University of North Carolina at Chapel Hill, NC 27599, USA
| | - Vladimir Akatov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow region 142290, Russia
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Bathini M, Raghushaker CR, Mahato KK. The Molecular Mechanisms of Action of Photobiomodulation Against Neurodegenerative Diseases: A Systematic Review. Cell Mol Neurobiol 2022. [PMID: 33301129 DOI: 10.1007/s10571-020-01016-9,33301129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
Neurodegenerative diseases might be slow but relentless, as we continue to fail in treating or delaying their progression. Given the complexity in the pathogenesis of these diseases, a broad-acting approach like photobiomodulation can prove promising. Photobiomodulation (PBM) uses red and infrared light for therapeutic benefits, working by stimulating growth and proliferation. The implications of photobiomodulation have been studied in several neurodegenerative disease models. It has been shown to improve cell survival, decrease apoptosis, alleviate oxidative stress, suppress inflammation, and rescue mitochondrial function. In in vivo models, it has reportedly preserved motor and cognitive skills. Beyond mitochondrial stimulation, the molecular mechanisms by which photobiomodulation protects against neurodegeneration have not been very well studied. This review has systematically been undertaken to study the effects of photobiomodulation at a molecular level and identify the different biochemical pathways and molecular changes in the process. The data showed the involvement of pathways like extracellular signal-regulated kinase (ERK), mitogen-activated protein kinase (MAPK), and protein kinase B (Akt). In addition, the expression of several genes and proteins playing different roles in the disease mechanisms was found to be influenced by PBM, such as neurotrophic factors and secretases. Studying the literature indicated that PBM can be translated to a potential therapeutic tool, acting through a spectrum of mechanisms that work together to decelerate disease progression in the organism, which is difficult to achieve through pharmacological interventions.
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Affiliation(s)
- Mayukha Bathini
- Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Chandavalli Ramappa Raghushaker
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Krishna Kishore Mahato
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
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Elgoyhen AB. The α9α10 nicotinic acetylcholine receptor: a compelling drug target for hearing loss? Expert Opin Ther Targets 2022; 26:291-302. [PMID: 35225139 PMCID: PMC9007918 DOI: 10.1080/14728222.2022.2047931] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Hearing loss is a major health problem, impacting education, communication, interpersonal relationships, and mental health. Drugs that prevent or restore hearing are lacking and hence novel drug targets are sought. There is the possibility of targeting the α9α10 nicotinic acetylcholine receptor (nAChR) in the prevention of noise-induced, hidden hearing loss and presbycusis. This receptor mediates synaptic transmission between medial olivocochlear efferent fibers and cochlear outer hair cells. This target is key since enhanced olivocochlear activity prevents noise-induced hearing loss and delays presbycusis. AREAS COVERED The work examines the α9α10 nicotinic acetylcholine receptor (nAChR), its role in noise-induced, hidden hearing loss and presbycusis and the possibility of targeting. Data has been searched in Pubmed, the World Report on Hearing from the World Health Organization and the Global Burden of Disease Study 2019. EXPERT OPINION The design of positive allosteric modulators of α9α10 nAChRs is proposed because of the advantage of reinforcing the medial olivocochlear (MOC)-hair cell endogenous neurotransmission without directly stimulating the target receptors, therefore avoiding receptor desensitization and reduced efficacy. The time is right for the discovery and development of α9α10 nAChRs targeting agents and high throughput screening assays will support this.
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Affiliation(s)
- Ana Belén Elgoyhen
- Laboratorio de Fisiología y Genética de la Audición, Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres" (INGEBI), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
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Dissecting the Mechanism of Action of Spiperone-A Candidate for Drug Repurposing for Colorectal Cancer. Cancers (Basel) 2022; 14:cancers14030776. [PMID: 35159043 PMCID: PMC8834219 DOI: 10.3390/cancers14030776] [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: 12/14/2021] [Revised: 01/25/2022] [Accepted: 01/29/2022] [Indexed: 02/05/2023] Open
Abstract
Simple Summary Despite advances in primary and adjuvant treatments, approximately 50% of colorectal cancer (CRC) patients still die from recurrence and metastatic disease. Thus, alternative and more effective therapeutic approaches are expected to be developed. Drug repurposing is increasing interest in cancer therapy, as it represents a cheaper and faster alternative strategy to de novo drug synthesis. Psychiatric medications are promising as a new generation of antitumor drugs. Here, we demonstrate that spiperone—a licensed drug for the treatment of schizophrenia—induces apoptosis in CRC cells. Our data reveal that spiperone’s cytotoxicity in CRC cells is mediated by phospholipase C activation, intracellular calcium homeostasis dysregulation, and irreversible endoplasmic reticulum stress induction, resulting in lipid metabolism alteration and Golgi apparatus damage. By identifying new targetable pathways in CRC cells, our findings represent a promising starting point for the design of novel therapeutic strategies for CRC. Abstract Approximately 50% of colorectal cancer (CRC) patients still die from recurrence and metastatic disease, highlighting the need for novel therapeutic strategies. Drug repurposing is attracting increasing attention because, compared to traditional de novo drug discovery processes, it may reduce drug development periods and costs. Epidemiological and preclinical evidence support the antitumor activity of antipsychotic drugs. Herein, we dissect the mechanism of action of the typical antipsychotic spiperone in CRC. Spiperone can reduce the clonogenic potential of stem-like CRC cells (CRC-SCs) and induce cell cycle arrest and apoptosis, in both differentiated and CRC-SCs, at clinically relevant concentrations whose toxicity is negligible for non-neoplastic cells. Analysis of intracellular Ca2+ kinetics upon spiperone treatment revealed a massive phospholipase C (PLC)-dependent endoplasmic reticulum (ER) Ca2+ release, resulting in ER Ca2+ homeostasis disruption. RNA sequencing revealed unfolded protein response (UPR) activation, ER stress, and induction of apoptosis, along with IRE1-dependent decay of mRNA (RIDD) activation. Lipidomic analysis showed a significant alteration of lipid profile and, in particular, of sphingolipids. Damage to the Golgi apparatus was also observed. Our data suggest that spiperone can represent an effective drug in the treatment of CRC, and that ER stress induction, along with lipid metabolism alteration, represents effective druggable pathways in CRC.
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Shen S, Wang Z, Sun H, Ma L. Role of NLRP3 Inflammasome in Myocardial Ischemia-Reperfusion Injury and Ventricular Remodeling. Med Sci Monit 2022; 28:e934255. [PMID: 35042840 PMCID: PMC8790935 DOI: 10.12659/msm.934255] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Reperfusion therapy is the optimal therapy for acute myocardial infarction (AMI), but acute inflammatory injury and chronic heart failure (HF) after myocardial ischemia and reperfusion (MI/R) remain the leading cause of death after AMI. Pyroptosis, a newly discovered form of cell death, has been proven to play a significant role in the acute reperfusion process and the subsequent chronic process of ventricular remodeling. Current research shows that multiple stimuli activate the pyroptotic signaling pathway and contribute to cell death and nonbacterial inflammation after MI/R. These stimuli promote the assembly of the nucleotide-binding and oligomerization-like receptor pyrin domain-containing protein 3 (NLRP3) inflammasome by activating NLRP3. The mature NLRP3 inflammasome cleaves procaspase-1 to active caspase-1, which leads to mature processing of interleukin (IL)-18, IL-1β, and gasdermin D (GSDMD) protein. That eventually results in cell lysis and generation of nonbacterial inflammation. The present review summarizes the mechanism of NLRP3 inflammasome activation after MI/R and discusses the role that NLRP3-mediated pyroptosis plays in the pathophysiology of MI/R injury and ventricular remodeling. We also discuss potential mechanisms and targeted therapy for which there is evidence supporting treatment of ischemic heart disease.
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Affiliation(s)
- Shichun Shen
- Department of Cardiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China (mainland)
| | - Zhen Wang
- Department of Cardiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China (mainland)
| | - Haozhong Sun
- Department of Cardiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China (mainland)
| | - Likun Ma
- Department of Cardiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China (mainland)
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Vallentin MF, Granfeldt A, Meilandt C, Povlsen AL, Sindberg B, Holmberg MJ, Iversen BN, Mærkedahl R, Mortensen LR, Nyboe R, Vandborg MP, Tarpgaard M, Runge C, Christiansen CF, Dissing TH, Terkelsen CJ, Christensen S, Kirkegaard H, Andersen LW. Effect of Intravenous or Intraosseous Calcium vs Saline on Return of Spontaneous Circulation in Adults With Out-of-Hospital Cardiac Arrest: A Randomized Clinical Trial. JAMA 2021; 326:2268-2276. [PMID: 34847226 PMCID: PMC8634154 DOI: 10.1001/jama.2021.20929] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
IMPORTANCE It is unclear whether administration of calcium has a beneficial effect in patients with cardiac arrest. OBJECTIVE To determine whether administration of calcium during out-of-hospital cardiac arrest improves return of spontaneous circulation in adults. DESIGN, SETTING, AND PARTICIPANTS This double-blind, placebo-controlled randomized clinical trial included 397 adult patients with out-of-hospital cardiac arrest and was conducted in the Central Denmark Region between January 20, 2020, and April 15, 2021. The last 90-day follow-up was on July 15, 2021. INTERVENTIONS The intervention consisted of up to 2 intravenous or intraosseous doses with 5 mmol of calcium chloride (n = 197) or saline (n = 200). The first dose was administered immediately after the first dose of epinephrine. MAIN OUTCOMES AND MEASURES The primary outcome was sustained return of spontaneous circulation. The secondary outcomes included survival and a favorable neurological outcome (modified Rankin Scale score of 0-3) at 30 days and 90 days. RESULTS Based on a planned interim analysis of 383 patients, the steering committee stopped the trial early due to concerns about harm in the calcium group. Of 397 adult patients randomized, 391 were included in the analyses (193 in the calcium group and 198 in the saline group; mean age, 68 [SD, 14] years; 114 [29%] were female). There was no loss to follow-up. There were 37 patients (19%) in the calcium group who had sustained return of spontaneous circulation compared with 53 patients (27%) in the saline group (risk ratio, 0.72 [95% CI, 0.49 to 1.03]; risk difference, -7.6% [95% CI, -16% to 0.8%]; P = .09). At 30 days, 10 patients (5.2%) in the calcium group and 18 patients (9.1%) in the saline group were alive (risk ratio, 0.57 [95% CI, 0.27 to 1.18]; risk difference, -3.9% [95% CI, -9.4% to 1.3%]; P = .17). A favorable neurological outcome at 30 days was observed in 7 patients (3.6%) in the calcium group and in 15 patients (7.6%) in the saline group (risk ratio, 0.48 [95% CI, 0.20 to 1.12]; risk difference, -4.0% [95% CI, -8.9% to 0.7%]; P = .12). Among the patients with calcium values measured who had return of spontaneous circulation, 26 (74%) in the calcium group and 1 (2%) in the saline group had hypercalcemia. CONCLUSIONS AND RELEVANCE Among adults with out-of-hospital cardiac arrest, treatment with intravenous or intraosseous calcium compared with saline did not significantly improve sustained return of spontaneous circulation. These results do not support the administration of calcium during out-of-hospital cardiac arrest in adults. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT04153435.
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Affiliation(s)
| | - Asger Granfeldt
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Carsten Meilandt
- Prehospital Emergency Medical Services, Central Denmark Region, Aarhus
| | | | - Birthe Sindberg
- Research Center for Emergency Medicine, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Emergency Department, Aarhus University Hospital, Aarhus, Denmark
| | - Mathias J. Holmberg
- Research Center for Emergency Medicine, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Emergency Department, Aarhus University Hospital, Aarhus, Denmark
- Department of Cardiology, Viborg Regional Hospital, Viborg, Denmark
| | - Bo Nees Iversen
- Prehospital Emergency Medical Services, Central Denmark Region, Aarhus
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Rikke Mærkedahl
- Prehospital Emergency Medical Services, Central Denmark Region, Aarhus
- Department of Anesthesiology and Intensive Care, Herning Regional Hospital, Herning, Denmark
| | - Lone Riis Mortensen
- Prehospital Emergency Medical Services, Central Denmark Region, Aarhus
- Department of Anesthesiology and Intensive Care, Randers Regional Hospital, Randers, Denmark
| | - Rasmus Nyboe
- Prehospital Emergency Medical Services, Central Denmark Region, Aarhus
- Department of Anesthesiology and Intensive Care, Horsens Regional Hospital, Horsens, Denmark
| | - Mads Partridge Vandborg
- Prehospital Emergency Medical Services, Central Denmark Region, Aarhus
- Department of Anesthesiology and Intensive Care, Viborg Regional Hospital, Viborg, Denmark
| | - Maren Tarpgaard
- Prehospital Emergency Medical Services, Central Denmark Region, Aarhus
- Department of Anesthesiology and Intensive Care, Herning Regional Hospital, Herning, Denmark
| | - Charlotte Runge
- Prehospital Emergency Medical Services, Central Denmark Region, Aarhus
- Elective Surgery Centre, Silkeborg Regional Hospital, Silkeborg, Denmark
| | | | - Thomas H. Dissing
- Prehospital Emergency Medical Services, Central Denmark Region, Aarhus
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | | | - Steffen Christensen
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Hans Kirkegaard
- Prehospital Emergency Medical Services, Central Denmark Region, Aarhus
- Research Center for Emergency Medicine, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Emergency Department, Aarhus University Hospital, Aarhus, Denmark
| | - Lars W. Andersen
- Prehospital Emergency Medical Services, Central Denmark Region, Aarhus
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
- Research Center for Emergency Medicine, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Emergency Department, Aarhus University Hospital, Aarhus, Denmark
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Liu S, Xu G, Huang M, Fu L, Jiang X, Yang M. Bisphenol A and bisphenol AF co-exposure induces apoptosis in human granulosa cell line KGN through intracellular stress-dependent mechanisms. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103399] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Pulse Duration Dependent Asymmetry in Molecular Transmembrane Transport Due to Electroporation in H9c2 Rat Cardiac Myoblast Cells In Vitro. Molecules 2021; 26:molecules26216571. [PMID: 34770979 PMCID: PMC8588460 DOI: 10.3390/molecules26216571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/09/2021] [Accepted: 10/22/2021] [Indexed: 11/17/2022] Open
Abstract
Electroporation (EP) is one of the successful physical methods for intracellular drug delivery, which temporarily permeabilizes plasma membrane by exposing cells to electric pulses. Orientation of cells in electric field is important for electroporation and, consequently, for transport of molecules through permeabilized plasma membrane. Uptake of molecules after electroporation are the greatest at poles of cells facing electrodes and is often asymmetrical. However, asymmetry reported was inconsistent and inconclusive-in different reports it was either preferentially anodal or cathodal. We investigated the asymmetry of polar uptake of calcium ions after electroporation with electric pulses of different durations, as the orientation of elongated cells affects electroporation to a different extent when using electric pulses of different durations in the range of 100 ns to 100 µs. The results show that with 1, 10, and 100 µs pulses, the uptake of calcium ions is greater at the pole closer to the cathode than at the pole closer to the anode. With shorter 100 ns pulses, the asymmetry is not observed. A different extent of electroporation at different parts of elongated cells, such as muscle or cardiac cells, may have an impact on electroporation-based treatments such as drug delivery, pulse-field ablation, and gene electrotransfection.
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Grosfeld EV, Bidiuk VA, Mitkevich OV, Ghazy ESMO, Kushnirov VV, Alexandrov AI. A Systematic Survey of Characteristic Features of Yeast Cell Death Triggered by External Factors. J Fungi (Basel) 2021; 7:886. [PMID: 34829175 PMCID: PMC8626022 DOI: 10.3390/jof7110886] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/15/2021] [Accepted: 10/17/2021] [Indexed: 12/20/2022] Open
Abstract
Cell death in response to distinct stimuli can manifest different morphological traits. It also depends on various cell death signaling pathways, extensively characterized in higher eukaryotes but less so in microorganisms. The study of cell death in yeast, and specifically Saccharomyces cerevisiae, can potentially be productive for understanding cell death, since numerous killing stimuli have been characterized for this organism. Here, we systematized the literature on external treatments that kill yeast, and which contains at least minimal data on cell death mechanisms. Data from 707 papers from the 7000 obtained using keyword searches were used to create a reference table for filtering types of cell death according to commonly assayed parameters. This table provides a resource for orientation within the literature; however, it also highlights that the common view of similarity between non-necrotic death in yeast and apoptosis in mammals has not provided sufficient progress to create a clear classification of cell death types. Differences in experimental setups also prevent direct comparison between different stimuli. Thus, side-by-side comparisons of various cell death-inducing stimuli under comparable conditions using existing and novel markers that can differentiate between types of cell death seem like a promising direction for future studies.
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Affiliation(s)
- Erika V. Grosfeld
- Moscow Institute of Physics and Technology, 9 Institutskiy per, Dolgoprudny, 141700 Moscow, Russia;
- Federal Research Center of Biotechnology of the RAS, Bach Institute of Biochemistry, 119071 Moscow, Russia; (V.A.B.); (O.V.M.); (E.S.M.O.G.); (V.V.K.)
| | - Victoria A. Bidiuk
- Federal Research Center of Biotechnology of the RAS, Bach Institute of Biochemistry, 119071 Moscow, Russia; (V.A.B.); (O.V.M.); (E.S.M.O.G.); (V.V.K.)
| | - Olga V. Mitkevich
- Federal Research Center of Biotechnology of the RAS, Bach Institute of Biochemistry, 119071 Moscow, Russia; (V.A.B.); (O.V.M.); (E.S.M.O.G.); (V.V.K.)
| | - Eslam S. M. O. Ghazy
- Federal Research Center of Biotechnology of the RAS, Bach Institute of Biochemistry, 119071 Moscow, Russia; (V.A.B.); (O.V.M.); (E.S.M.O.G.); (V.V.K.)
- Institute of Biochemical Technology and Nanotechnology, Peoples’ Friendship University of Russia (RUDN), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia
- Department of Microbiology, Faculty of Pharmacy, Tanta University, Tanta 31111, Egypt
| | - Vitaliy V. Kushnirov
- Federal Research Center of Biotechnology of the RAS, Bach Institute of Biochemistry, 119071 Moscow, Russia; (V.A.B.); (O.V.M.); (E.S.M.O.G.); (V.V.K.)
| | - Alexander I. Alexandrov
- Federal Research Center of Biotechnology of the RAS, Bach Institute of Biochemistry, 119071 Moscow, Russia; (V.A.B.); (O.V.M.); (E.S.M.O.G.); (V.V.K.)
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Xu G, Liu S, Huang M, Jiang X, Yang M. Cadmium induces apoptosis of human granulosa cell line KGN via mitochondrial dysfunction-mediated pathways. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 220:112341. [PMID: 34020281 DOI: 10.1016/j.ecoenv.2021.112341] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 04/07/2021] [Accepted: 05/01/2021] [Indexed: 05/20/2023]
Abstract
Cadmium (Cd) is an important industrial and environmental pollutant, which is closely correlated with female infertility. Although Cd-induced developmental disorders of human ovarian follicles have been widely reported, the underlying mechanisms remain not fully elucidated. In this study, we explored the mechanism underlying Cd-triggered apoptosis in granulosa cells. Following the treatment with various levels of Cd (0, 0.625, 1.25, 2.5 and 5 μM), we found that Cd triggered the death of KGN cells (a human granulosa-like tumor cell line) in a dose- as well as time-dependent manner. The levels of expressions of Bax and Bak were significantly increased, whereas the expression levels of Mcl-1 and Bcl-2 were considerably decreased after being treated with high levels of Cd. We showed that Cd exposure remarkably triggered mitochondrial dysfunction, including increased intracellular ROS and free Ca2+ levels, and decreased ATP generation and mitochondrial membrane potential. Furthermore, we found that mitochondrial dysfunction, especially excessive ROS production and intracellular Ca2+ overload, serve a vital role in Cd-triggered apoptosis of KGN cells. After using inhibitors to block the corresponding signaling cascades, Cd-mediated apoptosis was markedly repressed by ASK1 and p38 inhibitors in contrast with the control group. This suggests the activation of downstream pathways triggered by mitochondrial dysfunction participates in granulosa cell death and may cause female reproductive toxicity after Cd exposure.
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Affiliation(s)
- Guofeng Xu
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Shuang Liu
- Department of Reproductive Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Mingquan Huang
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China; Sichuan Treatment Center for Gynaecologic and Breast Diseases (Breast Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Xue Jiang
- Department of Reproductive Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Meng Yang
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China; Department of Reproductive Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.
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Ca 2+ roles in electroporation-induced changes of cancer cell physiology: From membrane repair to cell death. Bioelectrochemistry 2021; 142:107927. [PMID: 34425390 DOI: 10.1016/j.bioelechem.2021.107927] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 08/06/2021] [Accepted: 08/10/2021] [Indexed: 12/17/2022]
Abstract
The combination of Ca2+ ions and electroporation has gained attention as potential alternative to electrochemotherapy. Ca2+ is an important component of the cell membrane repair system and its presence directly influences the dynamics of the pore cycle after electroporation which can be exploited for cancer therapies. Here, the influence of Ca2+ concentration is investigated on small molecule electrotransfer and release of Calcein from 4T1, MX-1, B16F10, U87 cancer cells after cell exposure to microsecond electric pulses. Moreover, we investigated simultaneous molecule electrotransfer and intracellular calcium ion influx when media was supplemented with different Ca2+ concentrations. Results show that increased concentrations of calcium ions reduce the electrotransfer of small molecules to different lines of cancer cells as well as the release of Calcein. These effects are related with an enhanced membrane repair mechanism. Overall, we show that the efficiency of molecular electrotransfer can be controlled by regulating Ca2+ concentration in the electroporation medium. For the first time, the cause of cancer cell death in vitro from 1 mM CaCl2 concentrations is related to the irreversible loss of Ca2+ homeostasis after cell electroporation. Our findings provide fundamental insight on the mechanisms of Ca2+ electroporation that might lead to improved therapeutic outcomes.
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Myrka A, Buck L. Cytoskeletal Arrest: An Anoxia Tolerance Mechanism. Metabolites 2021; 11:metabo11080561. [PMID: 34436502 PMCID: PMC8401981 DOI: 10.3390/metabo11080561] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/13/2021] [Accepted: 08/14/2021] [Indexed: 12/16/2022] Open
Abstract
Polymerization of actin filaments and microtubules constitutes a ubiquitous demand for cellular adenosine-5′-triphosphate (ATP) and guanosine-5′-triphosphate (GTP). In anoxia-tolerant animals, ATP consumption is minimized during overwintering conditions, but little is known about the role of cell structure in anoxia tolerance. Studies of overwintering mammals have revealed that microtubule stability in neurites is reduced at low temperature, resulting in withdrawal of neurites and reduced abundance of excitatory synapses. Literature for turtles is consistent with a similar downregulation of peripheral cytoskeletal activity in brain and liver during anoxic overwintering. Downregulation of actin dynamics, as well as modification to microtubule organization, may play vital roles in facilitating anoxia tolerance. Mitochondrial calcium release occurs during anoxia in turtle neurons, and subsequent activation of calcium-binding proteins likely regulates cytoskeletal stability. Production of reactive oxygen species (ROS) formation can lead to catastrophic cytoskeletal damage during overwintering and ROS production can be regulated by the dynamics of mitochondrial interconnectivity. Therefore, suppression of ROS formation is likely an important aspect of cytoskeletal arrest. Furthermore, gasotransmitters can regulate ROS levels, as well as cytoskeletal contractility and rearrangement. In this review we will explore the energetic costs of cytoskeletal activity, the cellular mechanisms regulating it, and the potential for cytoskeletal arrest being an important mechanism permitting long-term anoxia survival in anoxia-tolerant species, such as the western painted turtle and goldfish.
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Affiliation(s)
- Alexander Myrka
- Department of Cell and Systems Biology, University of Toronto, Toronto, ON M5S 3G5, Canada;
| | - Leslie Buck
- Department of Cell and Systems Biology, University of Toronto, Toronto, ON M5S 3G5, Canada;
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON M5S 3G5, Canada
- Correspondence: ; Tel.: +1-416-978-3506
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Li S, Cao Y, Pan Q, Xiao Y, Wang Y, Wang X, Li X, Li Q, Tang X, Ran B. Neonicotinoid insecticides triggers mitochondrial bioenergetic dysfunction via manipulating ROS-calcium influx pathway in the liver. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 224:112690. [PMID: 34425541 DOI: 10.1016/j.ecoenv.2021.112690] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/14/2021] [Accepted: 08/19/2021] [Indexed: 06/13/2023]
Abstract
Extensive use of neonicotinoids insecticides (NNIs) rapidly garnered widespread attention in the toxicology, since they have been found in human samples, including urine, blood, breast milk and hair. However, the precise mechanism is not completely clear regarding the NNIs-induced hepatotoxicity. In this study, we exposed male mice to three neonicotinoids (dinotefuran (DIN), nitenpyram (NIT) and acetamiprid (ACET) for 30 days. Our results showed that NNIs remarkably induced morphological damage in the liver. Simultaneously, we found that three neonicotinoids could activate the store operated Ca2+ entry (SOCE) in the liver. Further results confirmed that reactive oxide species (ROS) scavenger n-acetylcysteine (NAC) attenuated DIN-induced calcium ion (Ca2+) overload and S-phase arrest via restoring protein expression of SOCE and S phase related genes in L02 hepatocytes. Moreover, we found that NAC obviously combated mitochondrial dysfunction caused by DIN via restoring mitochondrial membrane potential. Meanwhile, DIN treatment significantly increased pyruvate content, impaired the activities of tricarboxylic acid (TCA) cycle rate-limiting enzymes and inhibited adenosine triphosphate (ATP) generation, but these effects were reversed by Serca specific activator CDN1163. Collectively, perturbation of redox states can be recognized as the center of S-phase arrest and Ca2+ overload after NNIs exposure. In this regard, Ca2+ homeostasis dysregulation is a causative event of mitochondrial bioenergetic dysfunction in the liver. These data provides a new perspective for understanding NNI-induced hepatotoxicity mechanisms.
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Affiliation(s)
- Siwen Li
- Department of Physiology, College of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, Sichuan, PR China.
| | - Yang Cao
- Department of Physiology, College of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, Sichuan, PR China
| | - Qiangwen Pan
- Department of Physiology, College of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, Sichuan, PR China
| | - Yewei Xiao
- Department of Physiology, College of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, Sichuan, PR China
| | - Yanling Wang
- Department of Physiology, College of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, Sichuan, PR China
| | - Xiali Wang
- Department of Physiology, College of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, Sichuan, PR China
| | - Xinlian Li
- Department of Physiology, College of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, Sichuan, PR China
| | - Qiuyue Li
- Department of Physiology, College of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, Sichuan, PR China
| | - Xiaoqing Tang
- Department of Physiology, College of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, Sichuan, PR China
| | - Bing Ran
- Department of Physiology, College of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, Sichuan, PR China.
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Lu P, Chen J, Zhang C, Saur D, Baer CE, Lifshitz LM, Fogarty KE, ZhuGe R. Oscillating calcium signals in smooth muscle cells underlie the persistent basal tone of internal anal sphincter. J Cell Physiol 2021; 236:5937-5952. [PMID: 33452672 PMCID: PMC8132622 DOI: 10.1002/jcp.30279] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/29/2020] [Accepted: 12/31/2020] [Indexed: 02/05/2023]
Abstract
A persistent basal tone in the internal anal sphincter (IAS) is essential for keeping the anal canal closed and fecal continence; its inhibition via the rectoanal inhibitory reflex (RAIR) is required for successful defecation. However, cellular signals underlying the IAS basal tone remain enigmatic. Here we report the origin and molecular mechanisms of calcium signals that control the IAS basal tone, using a combination approach including a novel IAS slice preparation that retains cell arrangement and architecture as in vivo, 2-photon imaging, and cell-specific gene-modified mice. We found that IAS smooth muscle cells generate two forms of contractions (i.e., phasic and sustained contraction) and Ca2+ signals (i.e., synchronized Ca2+ oscillations [SCaOs] and asynchronized Ca2+ oscillations [ACaOs]) that last for hours. RyRs, TMEM16A, L-type Ca2+ channels, and gap junctions are required for SCaOs, which account for phasic contraction and 75% of sustained contraction. Nevertheless, only RyRs are required for ACaOs, which contribute 25% of sustained contraction. Nitric oxide, the primary neurotransmitter mediating the RAIR, blocks both types of Ca2+ signals, leading to IAS's full relaxation. Our results show that the oscillating nature of Ca2+ signals generates and maintains the basal tone without causing cytotoxicity to IAS. Our study provides insight into fecal continence and normal defecation.
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Affiliation(s)
- Ping Lu
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA
| | - Jun Chen
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA
| | - Chenghai Zhang
- Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute at Harvard Medical School, Boston, MA, USA
| | - Dieter Saur
- Department of Internal Medicine II, Klinikum rechts der Isar, Technische Universität München, München, Germany
| | - Christina E Baer
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA
- Sanderson Center for Optical Experimentation, University of Massachusetts Medical School, Worcester, MA, USA
| | - Lawrence M Lifshitz
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Kevin E Fogarty
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Ronghua ZhuGe
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, USA
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Mitostasis, Calcium and Free Radicals in Health, Aging and Neurodegeneration. Biomolecules 2021; 11:biom11071012. [PMID: 34356637 PMCID: PMC8301949 DOI: 10.3390/biom11071012] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 12/18/2022] Open
Abstract
Mitochondria play key roles in ATP supply, calcium homeostasis, redox balance control and apoptosis, which in neurons are fundamental for neurotransmission and to allow synaptic plasticity. Their functional integrity is maintained by mitostasis, a process that involves mitochondrial transport, anchoring, fusion and fission processes regulated by different signaling pathways but mainly by the peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α). PGC-1α also favors Ca2+ homeostasis, reduces oxidative stress, modulates inflammatory processes and mobilizes mitochondria to where they are needed. To achieve their functions, mitochondria are tightly connected to the endoplasmic reticulum (ER) through specialized structures of the ER termed mitochondria-associated membranes (MAMs), which facilitate the communication between these two organelles mainly to aim Ca2+ buffering. Alterations in mitochondrial activity enhance reactive oxygen species (ROS) production, disturbing the physiological metabolism and causing cell damage. Furthermore, cytosolic Ca2+ overload results in an increase in mitochondrial Ca2+, resulting in mitochondrial dysfunction and the induction of mitochondrial permeability transition pore (mPTP) opening, leading to mitochondrial swelling and cell death through apoptosis as demonstrated in several neuropathologies. In summary, mitochondrial homeostasis is critical to maintain neuronal function; in fact, their regulation aims to improve neuronal viability and to protect against aging and neurodegenerative diseases.
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Blagojevic M, Camilli G, Maxson M, Hube B, Moyes DL, Richardson JP, Naglik JR. Candidalysin triggers epithelial cellular stresses that induce necrotic death. Cell Microbiol 2021; 23:e13371. [PMID: 34085369 DOI: 10.1111/cmi.13371] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 05/04/2021] [Accepted: 06/01/2021] [Indexed: 12/25/2022]
Abstract
Candida albicans is a common opportunistic fungal pathogen that causes a wide range of infections from superficial mucosal to hematogenously disseminated candidiasis. The hyphal form plays an important role in the pathogenic process by invading epithelial cells and causing tissue damage. Notably, the secretion of the hyphal toxin candidalysin is essential for both epithelial cell damage and activation of mucosal immune responses. However, the mechanism of candidalysin-induced cell death remains unclear. Here, we examined the induction of cell death by candidalysin in oral epithelial cells. Fluorescent imaging using healthy/apoptotic/necrotic cell markers revealed that candidalysin causes a rapid and marked increase in the population of necrotic rather than apoptotic cells in a concentration dependent manner. Activation of a necrosis-like pathway was confirmed since C. albicans and candidalysin failed to activate caspase-8 and -3, or the cleavage of poly (ADP-ribose) polymerase. Furthermore, oral epithelial cells treated with candidalysin showed rapid production of reactive oxygen species, disruption of mitochondria activity and mitochondrial membrane potential, ATP depletion and cytochrome c release. Collectively, these data demonstrate that oral epithelial cells respond to the secreted fungal toxin candidalysin by triggering numerous cellular stress responses that induce necrotic death. TAKE AWAYS: Candidalysin secreted from Candida albicans causes epithelial cell stress. Candidalysin induces calcium influx and oxidative stress in host cells. Candidalysin induces mitochondrial dysfunction, ATP depletion and epithelial necrosis. The toxicity of candidalysin is mediated from the epithelial cell surface.
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Affiliation(s)
- Mariana Blagojevic
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London, UK
| | - Giorgio Camilli
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London, UK
| | - Michelle Maxson
- Program in Cell Biology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Bernhard Hube
- Department of Microbial Pathogenicity Mechanisms, Hans-Knöll-Institute, Jena, Germany.,Institute of Microbiology, Friedrich-Schiller-University Jena, Jena, Germany
| | - David L Moyes
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London, UK
| | - Jonathan P Richardson
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London, UK
| | - Julian R Naglik
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London, UK
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