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Ji Y, Yang C, Pang X, Yan Y, Wu Y, Geng Z, Hu W, Hu P, Wu X, Wang K. Repetitive transcranial magnetic stimulation in Alzheimer's disease: effects on neural and synaptic rehabilitation. Neural Regen Res 2025; 20:326-342. [PMID: 38819037 DOI: 10.4103/nrr.nrr-d-23-01201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 12/13/2023] [Indexed: 06/01/2024] Open
Abstract
Alzheimer's disease is a neurodegenerative disease resulting from deficits in synaptic transmission and homeostasis. The Alzheimer's disease brain tends to be hyperexcitable and hypersynchronized, thereby causing neurodegeneration and ultimately disrupting the operational abilities in daily life, leaving patients incapacitated. Repetitive transcranial magnetic stimulation is a cost-effective, neuro-modulatory technique used for multiple neurological conditions. Over the past two decades, it has been widely used to predict cognitive decline; identify pathophysiological markers; promote neuroplasticity; and assess brain excitability, plasticity, and connectivity. It has also been applied to patients with dementia, because it can yield facilitatory effects on cognition and promote brain recovery after a neurological insult. However, its therapeutic effectiveness at the molecular and synaptic levels has not been elucidated because of a limited number of studies. This study aimed to characterize the neurobiological changes following repetitive transcranial magnetic stimulation treatment, evaluate its effects on synaptic plasticity, and identify the associated mechanisms. This review essentially focuses on changes in the pathology, amyloidogenesis, and clearance pathways, given that amyloid deposition is a major hypothesis in the pathogenesis of Alzheimer's disease. Apoptotic mechanisms associated with repetitive transcranial magnetic stimulation procedures and different pathways mediating gene transcription, which are closely related to the neural regeneration process, are also highlighted. Finally, we discuss the outcomes of animal studies in which neuroplasticity is modulated and assessed at the structural and functional levels by using repetitive transcranial magnetic stimulation, with the aim to highlight future directions for better clinical translations.
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Affiliation(s)
- Yi Ji
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, Anhui Province, China
| | - Chaoyi Yang
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, Anhui Province, China
| | - Xuerui Pang
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, Anhui Province, China
| | - Yibing Yan
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, Anhui Province, China
| | - Yue Wu
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Zhi Geng
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, Anhui Province, China
| | - Wenjie Hu
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, Anhui Province, China
| | - Panpan Hu
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, Anhui Province, China
- Collaborative Innovation Center of Neuropsychiatric Disorders and Mental Health, Hefei, Anhui Province, China
| | - Xingqi Wu
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, Anhui Province, China
- Collaborative Innovation Center of Neuropsychiatric Disorders and Mental Health, Hefei, Anhui Province, China
| | - Kai Wang
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, Anhui Province, China
- Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, Anhui Province, China
- Department of Psychology and Sleep Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
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Unsal V, Cicek M, Aktepe N, Oner E. Morin attenuates arsenic-induced toxicity in 3T3 embryonic fibroblast cells by suppressing oxidative stress, inflammation, and apoptosis: In vitro and silico evaluations. Toxicol Res (Camb) 2024; 13:tfae113. [PMID: 39036522 PMCID: PMC11260228 DOI: 10.1093/toxres/tfae113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 06/13/2024] [Accepted: 07/12/2024] [Indexed: 07/23/2024] Open
Abstract
This study aims to investigate the curative effects of Morin, a flavonoid, against arsenic toxicity in 3T3 embryonic fibroblast cells and its effect on the molecular mechanisms of cells. The cytotoxicity and viability of the cells were measured by MTT and LDH tests. Arsenic (0.74 μM) was used to trigger toxicity and Morin (50 μM) was used for treatment. The levels of oxidative stress biomarkers and the activities of antioxidant enzymes were measured by spectrophotometric method, and inflammatory markers were measured by ELISA method. While mRNA expression levels of Bax, Bcl-2 levels, and Caspase-3 activity were measured by qRT-PCR technique, TUNEL staining was performed to detect DNA breaks and DAPI staining to visualize nuclear changes. Protein structures were retrieved from the protein data bank. OpenBabel and Autodock programs were used for the molecular docking study. Morin rescued the 3T3 embryonic fibroblast cells exposed to arsenic. However, Arsenic decreased the activities of antioxidant enzymes in cells and significantly increased oxidative stress, inflammation, and apoptosis. Morin treatment reduced oxidative damage and TNF-α and IL-1β levels. Arsenic-induced Caspase-3 mRNA expression level and Bax protein mRNA expression level were significantly increased, while Bcl-2 mRNA expression level was significantly decreased. While Caspase-3 mRNA expression level and Bax protein mRNA expression level decreased with morin treatment, Bcl-2 mRNA expression level increased significantly. Molecular docking study results showed good binding affinity of morin in SOD, GSH-Px, Bax, Bcl-2, Caspase-3, TNF-α, and IL-1β structures. Morin showed antioxidant, anti-inflammatory, and anti-apoptotic effects against Arsenic-induced cellular toxicity.
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Affiliation(s)
- Velid Unsal
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Mardin Artuklu University, Mardin, 47200, Türkiye
| | - Mustafa Cicek
- Department of Medical Biology, Faculty of Medicine, Kahramanmaras Sütcü Imam University, Kahramanmaras, 46050, Türkiye
| | - Necmettin Aktepe
- Department of Nursing, Faculty of Health Sciences Mardin Artuklu University, Mardin, 47200, Türkiye
| | - Erkan Oner
- Department of Biochemistry, Faculty of Pharmacy, Adıyaman University, Adıyaman, 02000, Türkiye
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3
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Svandova E, Vesela B, Janeckova E, Chai Y, Matalova E. Exploring caspase functions in mouse models. Apoptosis 2024; 29:938-966. [PMID: 38824481 PMCID: PMC11263464 DOI: 10.1007/s10495-024-01976-z] [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] [Accepted: 05/02/2024] [Indexed: 06/03/2024]
Abstract
Caspases are enzymes with protease activity. Despite being known for more than three decades, caspase investigation still yields surprising and fascinating information. Initially associated with cell death and inflammation, their functions have gradually been revealed to extend beyond, targeting pathways such as cell proliferation, migration, and differentiation. These processes are also associated with disease mechanisms, positioning caspases as potential targets for numerous pathologies including inflammatory, neurological, metabolic, or oncological conditions. While in vitro studies play a crucial role in elucidating molecular pathways, they lack the context of the body's complexity. Therefore, laboratory animals are an indispensable part of successfully understanding and applying caspase networks. This paper aims to summarize and discuss recent knowledge, understanding, and challenges in caspase knock-out mice.
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Affiliation(s)
- Eva Svandova
- Laboratory of Odontogenesis and Osteogenesis, Institute of Animal Physiology and Genetic, Brno, Czech Republic.
| | - Barbora Vesela
- Laboratory of Odontogenesis and Osteogenesis, Institute of Animal Physiology and Genetic, Brno, Czech Republic
| | - Eva Janeckova
- Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles, USA
| | - Yang Chai
- Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles, USA
| | - Eva Matalova
- Laboratory of Odontogenesis and Osteogenesis, Institute of Animal Physiology and Genetic, Brno, Czech Republic
- Department of Physiology, University of Veterinary Sciences, Brno, Czech Republic
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Seymour DJ, Kim JJM, Doelman J, Cant JP. Feed restriction of lactating cows triggers acute downregulation of mammary mammalian target of rapamycin signaling and chronic reduction of mammary epithelial mass. J Dairy Sci 2024; 107:5667-5680. [PMID: 38580148 DOI: 10.3168/jds.2023-24478] [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: 11/27/2023] [Accepted: 02/26/2024] [Indexed: 04/07/2024]
Abstract
While there is generally no consensus about how nutrients determine milk synthesis in the mammary gland, it is likely that the mechanistic target of rapamycin (mTOR) complex 1 (mTORC1) plays a role as a key integrator of nutritional and mitogenic signals that can influence a multitude of catabolic and anabolic pathways. The objectives of this study were to evaluate acute changes (<24 h) in translational signaling, in addition to chronic changes (14 d) in mammary gland structure and composition, in response to a severe feed restriction. Fourteen lactating Holstein dairy cows were assigned to either ad libitum feeding (n = 7) or a restricted feeding program (n = 7). Feed-restricted cows had feed removed after the evening milking on d 0. Mammary biopsies and blood samples were collected 16 h after feed removal, after which cows in the restricted group were fed 60% of their previously observed ad libitum intake for the remainder of the study. On d 14, animals were slaughtered and their mammary glands dissected. In response to feed removal, an acute increase in plasma nonesterified fatty acid concentration was observed, concurrent to a decrease in milk yield. In mammary tissue, we observed downregulation of the mTORC1-S6K1 signaling cascade, in addition to reductions in mRNA expression of markers of protein synthesis, endoplasmic reticulum biogenesis, and cell turnover (i.e., transcripts associated with apoptosis or cell proliferation). During the 14 d of restricted feeding, animals underwent homeorhetic adaptation to 40% lower nutrient intake, achieving a new setpoint of 14% reduced milk yield with 18% and 29% smaller mammary secretory tissue DM and CP masses, respectively. On d 14, no treatment differences were observed in markers of protein synthesis or mammary cell turnover evaluated using gene transcripts and immunohistochemical staining. These findings implicate mTORC1-S6K1 in the early phase of the adaptation of the mammary gland's capacity for milk synthesis in response to changes in nutrient supply. Additionally, changes in rates of mammary cell turnover may be transient in nature, returning to basal levels following brief alterations that have sustained effects.
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Affiliation(s)
- D J Seymour
- Centre for Nutrition Modelling, Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1 Canada.
| | - J J M Kim
- Centre for Nutrition Modelling, Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1 Canada
| | - J Doelman
- Trouw Nutrition R&D, 5830 AE Boxmeer, the Netherlands
| | - J P Cant
- Centre for Nutrition Modelling, Department of Animal Biosciences, University of Guelph, Guelph, ON, N1G 2W1 Canada
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Beigl TB, Paul A, Fellmeth TP, Nguyen D, Barber L, Weller S, Schäfer B, Gillissen BF, Aulitzky WE, Kopp HG, Rehm M, Andrews DW, Pluhackova K, Essmann F. BCL-2 and BOK regulate apoptosis by interaction of their C-terminal transmembrane domains. EMBO Rep 2024:10.1038/s44319-024-00206-6. [PMID: 39048751 DOI: 10.1038/s44319-024-00206-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 06/17/2024] [Accepted: 06/25/2024] [Indexed: 07/27/2024] Open
Abstract
The Bcl-2 family controls apoptosis by direct interactions of pro- and anti-apoptotic proteins. The principle mechanism is binding of the BH3 domain of pro-apoptotic proteins to the hydrophobic groove of anti-apoptotic siblings, which is therapeutically exploited by approved BH3-mimetic anti-cancer drugs. Evidence suggests that also the transmembrane domain (TMD) of Bcl-2 proteins can mediate Bcl-2 interactions. We developed a highly-specific split luciferase assay enabling the analysis of TMD interactions of pore-forming apoptosis effectors BAX, BAK, and BOK with anti-apoptotic Bcl-2 proteins in living cells. We confirm homotypic interaction of the BAX-TMD, but also newly identify interaction of the TMD of anti-apoptotic BCL-2 with the TMD of BOK, a peculiar pro-apoptotic Bcl-2 protein. BOK-TMD and BCL-2-TMD interact at the endoplasmic reticulum. Molecular dynamics simulations confirm dynamic BOK-TMD and BCL-2-TMD dimers and stable heterotetramers. Mutation of BCL-2-TMD at predicted key residues abolishes interaction with BOK-TMD. Also, inhibition of BOK-induced apoptosis by BCL-2 depends specifically on their TMDs. Thus, TMDs of Bcl-2 proteins are a relevant interaction interface for apoptosis regulation and provide a novel potential drug target.
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Affiliation(s)
- Tobias B Beigl
- Robert Bosch Center for Tumor Diseases, Stuttgart, Germany
| | - Alexander Paul
- Robert Bosch Center for Tumor Diseases, Stuttgart, Germany
| | - Thomas P Fellmeth
- Cluster of Excellence SimTech, University of Stuttgart, Stuttgart, Germany
| | - Dang Nguyen
- Department of Medical Biophysics, Faculty of Medicine, University of Toronto, Toronto, Canada
- Biological Sciences Platform, Sunnybrook Research Institute, Toronto, Canada
| | - Lynn Barber
- Robert Bosch Center for Tumor Diseases, Stuttgart, Germany
| | - Sandra Weller
- Robert Bosch Center for Tumor Diseases, Stuttgart, Germany
| | | | - Bernhard F Gillissen
- Department of Hematology, Oncology, and Tumorimmunology, Charité University Medicine, Berlin, Germany
| | | | - Hans-Georg Kopp
- Robert Bosch Center for Tumor Diseases, Stuttgart, Germany
- Robert-Bosch-Hospital, Stuttgart, Germany
| | - Markus Rehm
- Institute of Cell Biology and Immunology, University of Stuttgart, Stuttgart, Germany
- Stuttgart Research Center Systems Biology, University of Stuttgart, Stuttgart, Germany
| | - David W Andrews
- Department of Medical Biophysics, Faculty of Medicine, University of Toronto, Toronto, Canada
- Biological Sciences Platform, Sunnybrook Research Institute, Toronto, Canada
- Department of Biochemistry, Faculty of Medicine, University of Toronto, Toronto, Canada
| | | | - Frank Essmann
- Robert Bosch Center for Tumor Diseases, Stuttgart, Germany.
- Department of Molecular Medicine, Interfaculty Institute for Biochemistry, Eberhard Karls University Tübingen, Tübingen, Germany.
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Chun C, Byun JM, Cha M, Lee H, Choi B, Kim H, Hong S, Lee Y, Park H, Koh Y, Yoon TY. Profiling protein-protein interactions to predict the efficacy of B-cell-lymphoma-2-homology-3 mimetics for acute myeloid leukaemia. Nat Biomed Eng 2024:10.1038/s41551-024-01241-3. [PMID: 39025942 DOI: 10.1038/s41551-024-01241-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 06/28/2024] [Indexed: 07/20/2024]
Abstract
B-cell-lymphoma-2 (BCL2) homology-3 (BH3) mimetics are inhibitors of protein-protein interactions (PPIs) that saturate anti-apoptotic proteins in the BCL2 family to induce apoptosis in cancer cells. Despite the success of the BH3-mimetic ABT-199 for the treatment of haematological malignancies, only a fraction of patients respond to the drug and most patients eventually develop resistance to it. Here we show that the efficacy of ABT-199 can be predicted by profiling the rewired status of the PPI network of the BCL2 family via single-molecule pull-down and co-immunoprecipitation to quantify more than 20 types of PPI from a total of only 1.2 × 106 cells per sample. By comparing the obtained multidimensional data with BH3-mimetic efficacies determined ex vivo, we constructed a model for predicting the efficacy of ABT-199 that designates two complexes of the BCL2 protein family as the primary mediators of drug effectiveness and resistance, and applied it to prospectively assist therapeutic decision-making for patients with acute myeloid leukaemia. The characterization of PPI complexes in clinical specimens opens up opportunities for individualized protein-complex-targeting therapies.
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Affiliation(s)
- Changju Chun
- School of Biological Sciences and Institute for Molecular Biology and Genetics, Seoul National University, Seoul, South Korea
| | - Ja Min Byun
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Minkwon Cha
- School of Biological Sciences and Institute for Molecular Biology and Genetics, Seoul National University, Seoul, South Korea
- Department of Physics, Pohang University of Science and Technology (POSTECH), Pohang, South Korea
| | - Hongwon Lee
- Department of Biomarker Discovery, PROTEINA Co., Ltd, Seoul, South Korea
| | - Byungsan Choi
- Department of Biomarker Discovery, PROTEINA Co., Ltd, Seoul, South Korea
| | - Hyunwoo Kim
- Department of Biomarker Discovery, PROTEINA Co., Ltd, Seoul, South Korea
| | - Saem Hong
- Department of Biomarker Discovery, PROTEINA Co., Ltd, Seoul, South Korea
| | - Yunseo Lee
- Department of Biomarker Discovery, PROTEINA Co., Ltd, Seoul, South Korea
| | - Hayoung Park
- Department of Biomarker Discovery, PROTEINA Co., Ltd, Seoul, South Korea
- School of Biological Sciences and Institute for Molecular Biology and Genetics, Seoul National University, Seoul, South Korea
| | - Youngil Koh
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, South Korea.
| | - Tae-Young Yoon
- School of Biological Sciences and Institute for Molecular Biology and Genetics, Seoul National University, Seoul, South Korea.
- Department of Biomarker Discovery, PROTEINA Co., Ltd, Seoul, South Korea.
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Nguyen D, Osterlund E, Kale J, Andrews DW. The C-terminal sequences of Bcl-2 family proteins mediate interactions that regulate cell death. Biochem J 2024; 481:903-922. [PMID: 38985308 DOI: 10.1042/bcj20210352] [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: 02/05/2024] [Revised: 06/18/2024] [Accepted: 06/19/2024] [Indexed: 07/11/2024]
Abstract
Programmed cell death via the both intrinsic and extrinsic pathways is regulated by interactions of the Bcl-2 family protein members that determine whether the cell commits to apoptosis via mitochondrial outer membrane permeabilization (MOMP). Recently the conserved C-terminal sequences (CTSs) that mediate localization of Bcl-2 family proteins to intracellular membranes, have been shown to have additional protein-protein binding functions that contribute to the functions of these proteins in regulating MOMP. Here we review the pivotal role of CTSs in Bcl-2 family interactions including: (1) homotypic interactions between the pro-apoptotic executioner proteins that cause MOMP, (2) heterotypic interactions between pro-apoptotic and anti-apoptotic proteins that prevent MOMP, and (3) heterotypic interactions between the pro-apoptotic executioner proteins and the pro-apoptotic direct activator proteins that promote MOMP.
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Affiliation(s)
- Dang Nguyen
- Department of Medical Biophysics, Faculty of Medicine, University of Toronto, Toronto, Canada
- Biological Sciences Platform, Odette Cancer Program, Sunnybrook Research Institute, Toronto, Canada
| | - Elizabeth Osterlund
- Department of Biochemistry and Biomedical Sciences, Faculty of Health Science, McMaster University, Hamilton, Canada
| | - Justin Kale
- Biological Sciences Platform, Odette Cancer Program, Sunnybrook Research Institute, Toronto, Canada
| | - David W Andrews
- Department of Medical Biophysics, Faculty of Medicine, University of Toronto, Toronto, Canada
- Biological Sciences Platform, Odette Cancer Program, Sunnybrook Research Institute, Toronto, Canada
- Department of Biochemistry, Faculty of Medicine, University of Toronto, Toronto, Canada
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Cho J, Chung H, Lee S, Kim WH. Evaluation of MCL-1 as a prognostic factor in canine mammary gland tumors. PLoS One 2024; 19:e0306398. [PMID: 39012900 PMCID: PMC11251587 DOI: 10.1371/journal.pone.0306398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 06/16/2024] [Indexed: 07/18/2024] Open
Abstract
Myeloid cell leukemia-1 (MCL-1), which belongs to the anti-apoptotic B cell lymphoma-2 family protein, is overexpressed in various cancers and is associated with cell immortality, malignant transformation, chemoresistance, and poor prognosis in humans. However, the significance of MCL-1 in canine mammary gland tumors (MGTs) remains unknown. This study aimed to examine MCL-1 expression in normal canine mammary glands and tumors and to assess its correlation with clinical and histologic variables. In total, 111 samples were examined, including 12 normal mammary gland tissues, 51 benign MGTs, and 48 malignant MGTs. Immunohistochemistry revealed that 53% of benign tumors and 75% of malignant tumors exhibited high MCL-1 expression, whereas only 8% of normal mammary glands exhibited high MCL-1 expression. High MCL-1 expression correlated with tumor malignancy (p < 0.001), large tumor size (> 3 cm) (p = 0.005), high Ki-67 expression (p = 0.046), and metastasis (p = 0.027). Survival curve analysis of dogs with malignant MGTs demonstrated a significant association between high MCL-1 expression and shorter median overall survival (p = 0.027) and progression-free survival (p = 0.014). Our study identified MCL-1 as a prognostic factor and potential therapeutic target in canine MGTs.
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Affiliation(s)
- Jaeho Cho
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, Republic of Korea
| | - Heaji Chung
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, Republic of Korea
| | - Sungin Lee
- Department of Veterinary Surgery, College of Veterinary Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Wan Hee Kim
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, Republic of Korea
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Wang F, Zeng L, Chi Y, Yao S, Zheng Z, Peng S, Wang X, Chen K. Adipose-Derived exosome from Diet-Induced-Obese mouse attenuates LPS-Induced acute lung injury by inhibiting inflammation and Apoptosis: In vivo and in silico insight. Int Immunopharmacol 2024; 139:112679. [PMID: 39013217 DOI: 10.1016/j.intimp.2024.112679] [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: 11/01/2023] [Revised: 06/30/2024] [Accepted: 07/11/2024] [Indexed: 07/18/2024]
Abstract
BACKGROUND Acute lung injury (ALI) is a severe clinical condition in the intensive care units, and obesity is a high risk of ALI. Paradoxically, obese ALI patients had better prognosis than non-obese patients, and the mechanism remains largely unknown. METHODS Mouse models of ALI and diet-induced-obesity (DIO) were used to investigate the effect of exosomes derived from adipose tissue. The adipose-derived exosomes (ADEs) were isolated by ultracentrifugation, and the role of exosomal miRNAs in the ALI was studied. RESULTS Compared with ADEs of control mice (C-Exo), ADEs of DIO mice (D-Exo) increased survival rate and mitigated pulmonary lesions of ALI mice. GO and KEGG analyses showed that the target genes of 40 differentially expressed miRNAs between D-Exo and C-Exo were mainly involved with inflammation, apoptosis and cell cycle. Furthermore, the D-Exo treatment significantly decreased Ly6G+ cell infiltration, down-regulated levels of pro-inflammatory cytokines (IL-6, IL-12, TNF-α, MCP-1) and chemokines (IL-8 and MIP-2), reduced pulmonary apoptosis and arrest at G0G1 phase (P < 0.01). And the protective effects of D-Exo were better than those of C-Exo (P < 0.05). Compared with the C-Exo mice, the levels of miR-16-5p and miR-335-3p in the D-Exo mice were significantly up-regulated (P < 0.05), and the expressions of IKBKB and TNFSF10, respective target of miR-16-5p and miR-335-3p by bioinformatic analysis, were significantly down-regulated in the D-Exo mice (P < 0.05). CONCLUSIONS Exosomes derived from adipose tissue of DIO mice are potent to attenuate LPS-induced ALI, which could be contributed by exosome-carried miRNAs. Our data shed light on the interaction between obesity and ALI.
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Affiliation(s)
- Fengyuan Wang
- College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu, Sichuan 610041, PR China
| | - Lei Zeng
- School of Public Health, Chengdu Medical College, Chengdu, Sichuan 610500, PR China
| | - Yanqi Chi
- School of Public Health, Chengdu Medical College, Chengdu, Sichuan 610500, PR China
| | - Surui Yao
- School of Public Health, Chengdu Medical College, Chengdu, Sichuan 610500, PR China
| | - Zihan Zheng
- School of Public Health, Chengdu Medical College, Chengdu, Sichuan 610500, PR China
| | - Shiyu Peng
- School of Public Health, Chengdu Medical College, Chengdu, Sichuan 610500, PR China
| | - Xiangning Wang
- School of Public Health, Chengdu Medical College, Chengdu, Sichuan 610500, PR China
| | - Kejie Chen
- School of Public Health, Chengdu Medical College, Chengdu, Sichuan 610500, PR China.
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Shao M, Qiu Y, Shen M, Liu W, Feng D, Luo Z, Zhou Y. Procyanidin C1 inhibits bleomycin-induced pulmonary fibrosis in mice by selective clearance of senescent myofibroblasts. FASEB J 2024; 38:e23749. [PMID: 38953707 DOI: 10.1096/fj.202302547rr] [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: 12/09/2023] [Revised: 05/05/2024] [Accepted: 06/06/2024] [Indexed: 07/04/2024]
Abstract
Pulmonary fibrosis is a formidable challenge in chronic and age-related lung diseases. Myofibroblasts secrete large amounts of extracellular matrix and induce pro-repair responses during normal wound healing. Successful tissue repair results in termination of myofibroblast activity via apoptosis; however, some myofibroblasts exhibit a senescent phenotype and escape apoptosis, causing over-repair that is characterized by pathological fibrotic scarring. Therefore, the removal of senescent myofibroblasts using senolytics is an important method for the treatment of pulmonary fibrosis. Procyanidin C1 (PCC1) has recently been discovered as a senolytic compound with very low toxicity and few side effects. This study aimed to determine whether PCC1 could improve lung fibrosis by promoting apoptosis in senescent myofibroblasts and to investigate the mechanisms involved. The results showed that PCC1 attenuates bleomycin (BLM)-induced pulmonary fibrosis in mice. In addition, we found that PCC1 inhibited extracellular matrix deposition and promoted the apoptosis of senescent myofibroblasts by increasing PUMA expression and activating the BAX signaling pathway. Our findings represent a new method of pulmonary fibrosis management and emphasize the potential of PCC1 as a senotherapeutic agent for the treatment of pulmonary fibrosis, providing hope for patients with pulmonary fibrosis worldwide. Our results advance our understanding of age-related diseases and highlight the importance of addressing cellular senescence in treatment.
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Affiliation(s)
- Min Shao
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Yujia Qiu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Mengxia Shen
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Wei Liu
- Department of Community Nursing, Xiangya Nursing School, Central South University, Changsha, China
| | - Dandan Feng
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Ziqiang Luo
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, China
- Hunan Key Laboratory of Organ Fibrosis, Changsha, China
| | - Yan Zhou
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, China
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Pang QQ, Zang CX, Li T, Zeng XC, Liu LX, Zhang D, Yao XS, Yu Y. Neuroprotective effect of GJ-4 against cognitive impairments in vascular dementia by improving white matter damage. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 132:155877. [PMID: 39032283 DOI: 10.1016/j.phymed.2024.155877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 07/03/2024] [Accepted: 07/12/2024] [Indexed: 07/23/2024]
Abstract
BACKGROUND White matter lesions (WMLs) are increasingly linked to the pathological process of chronic vascular dementia (VaD). An effective crocins fraction extracted from Gardenia Fructus, GJ-4, has been shown to improve cognitive function in several Alzheimer's disease models and VaD models. OBJECTIVES To explore the potential mechanisms of GJ-4 on WMLs in a chronic VaD mouse model. METHODS The chronic VaD mouse model was established, and WMLs were characterized by cerebral blood flow (CBF), behavioral tests, LFB staining, and immunohistochemistry. The anti-oxidative effect of GJ-4 was validated by examining biochemical parameters (SOD, MDA, and GSH) and the Keap1-Nrf2/HO-1 pathway. The impact of GJ-4 on lipid metabolism in WM was further investigated through lipidomic analysis. RESULTS GJ-4 significantly attenuated cognitive impairments and improved the CBF of BCAS (bilateral common carotid artery stenosis)-induced mice. Mechanism research showed that GJ-4 could enhance cognition by promoting the repair of WMLs by inhibiting oxidative stress. Furthermore, GJ-4 treatment significantly reduced chronic cerebral hypoperfusion (CCH)-induced WMLs via improving lipid metabolism disorder in the WM. CONCLUSION This research has provided valuable insights into the significance of WMLs in CCH-induced VaD and underscored the potential of GJ-4 as a therapeutic agent for improving cognitive function by targeting WMLs. These findings suggest that GJ-4 is a promising candidate for the treatment of VaD.
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Affiliation(s)
- Qian-Qian Pang
- State Key Laboratory of Bioactive Molecules and Druggability Assessment; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy; Jinan University, Guangzhou, 510632, People's Republic of China; University of Michigan Life Sciences Institute, Ann Arbor, MI 48109-2216, United States
| | - Cai-Xia Zang
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Ting Li
- State Key Laboratory of Bioactive Molecules and Druggability Assessment; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy; Jinan University, Guangzhou, 510632, People's Republic of China
| | - Xiao-Chun Zeng
- State Key Laboratory of Bioactive Molecules and Druggability Assessment; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy; Jinan University, Guangzhou, 510632, People's Republic of China
| | - Ling-Xian Liu
- State Key Laboratory of Bioactive Molecules and Druggability Assessment; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy; Jinan University, Guangzhou, 510632, People's Republic of China
| | - Dan Zhang
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China.
| | - Xin-Sheng Yao
- State Key Laboratory of Bioactive Molecules and Druggability Assessment; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy; Jinan University, Guangzhou, 510632, People's Republic of China.
| | - Yang Yu
- State Key Laboratory of Bioactive Molecules and Druggability Assessment; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy; Jinan University, Guangzhou, 510632, People's Republic of China.
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12
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Lucas SCC, Milbradt AG, Blackwell JH, Bonomo S, Brierley A, Cassar DJ, Freeman J, Hadfield TE, Morrill LA, Riemens R, Sarda S, Schiesser S, Wiktelius D, Ahmed S, Bostock MJ, Börjesson U, De Fusco C, Guerot C, Hargreaves D, Hewitt S, Lamb ML, Su N, Whatling R, Wheeler M, Kettle JG. Design of a Lead-Like Cysteine-Targeting Covalent Library and the Identification of Hits to Cys55 of Bfl-1. J Med Chem 2024; 67:11209-11225. [PMID: 38916990 DOI: 10.1021/acs.jmedchem.4c00781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
Covalent hit identification is a viable approach to identify chemical starting points against difficult-to-drug targets. While most researchers screen libraries of <2k electrophilic fragments, focusing on lead-like compounds can be advantageous in terms of finding hits with improved affinity and with a better chance of identifying cryptic pockets. However, due to the increased molecular complexity, larger numbers of compounds (>10k) are desirable to ensure adequate coverage of chemical space. Herein, the approach taken to build a library of 12k covalent lead-like compounds is reported, utilizing legacy compounds, robust library chemistry, and acquisitions. The lead-like covalent library was screened against the antiapoptotic protein Bfl-1, and six promising hits that displaced the BIM peptide from the PPI interface were identified. Intriguingly, X-ray crystallography of lead-like compound 8 showed that it binds to a previously unobserved conformation of the Bfl-1 protein and is an ideal starting point for the optimization of Bfl-1 inhibitors.
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Affiliation(s)
- Simon C C Lucas
- Hit Discovery, Discovery Sciences, R&D, AstraZeneca, Cambridge CB2 0AA, U.K
| | - Alexander G Milbradt
- Mechanistic and Structural Biology, Discovery Sciences, R&D, AstraZeneca, Cambridge CB2 0AA, U.K
| | - J Henry Blackwell
- Hit Discovery, Discovery Sciences, R&D, AstraZeneca, Cambridge CB2 0AA, U.K
| | - Silvia Bonomo
- Hit Discovery, Discovery Sciences, R&D, AstraZeneca, Cambridge CB2 0AA, U.K
| | - Andrew Brierley
- Compound Synthesis and Management, Discovery Sciences, R&D, AstraZeneca, Cambridge CB2 0AA, U.K
| | - Doyle J Cassar
- Medicinal Chemistry, Oncology R&D, AstraZeneca, Cambridge CB2 0AA, U.K
| | - Jared Freeman
- Medicinal Chemistry, Research and Early Development, Cardiovascular, Renal and Metabolic Disorders (CVRM), Biopharmaceuticals R&D, AstraZeneca, Gothenburg, SE-43183, Sweden
| | - Thomas E Hadfield
- Hit Discovery, Discovery Sciences, R&D, AstraZeneca, Cambridge CB2 0AA, U.K
| | - Lucas A Morrill
- Medicinal Chemistry, Oncology R&D, AstraZeneca, Waltham, Massachusetts 02451, United States
| | - Rick Riemens
- Medicinal Chemistry, Oncology R&D, Acerta B. V., a Part of the AstraZeneca Group, Oss 5349, The Netherlands
| | - Sunil Sarda
- Compound Synthesis and Management, Discovery Sciences, R&D, AstraZeneca, Cambridge CB2 0AA, U.K
| | - Stefan Schiesser
- Medicinal Chemistry, Research and Early Development, Respiratory and Immunology (R&I), Biopharmaceuticals R&D, AstraZeneca, Gothenburg, SE-43183, Sweden
| | - Daniel Wiktelius
- Compound Synthesis and Management, Discovery Sciences, R&D, AstraZeneca, Gothenburg, SE-43183, Sweden
| | - Samiyah Ahmed
- Discovery Biology, Discovery Sciences, R&D, AstraZeneca, Cambridge CB2 0AA, U.K
| | - Mark J Bostock
- Mechanistic and Structural Biology, Discovery Sciences, R&D, AstraZeneca, Cambridge CB2 0AA, U.K
| | - Ulf Börjesson
- Hit Discovery, Discovery Sciences, R&D, AstraZeneca, Gothenburg, SE-43183, Sweden
| | - Claudia De Fusco
- Hit Discovery, Discovery Sciences, R&D, AstraZeneca, Cambridge CB2 0AA, U.K
| | - Carine Guerot
- Medicinal Chemistry, Oncology R&D, AstraZeneca, Cambridge CB2 0AA, U.K
| | - David Hargreaves
- Mechanistic and Structural Biology, Discovery Sciences, R&D, AstraZeneca, Cambridge CB2 0AA, U.K
| | - Sarah Hewitt
- Mechanistic and Structural Biology, Discovery Sciences, R&D, AstraZeneca, Cambridge CB2 0AA, U.K
| | - Michelle L Lamb
- Medicinal Chemistry, Oncology R&D, AstraZeneca, Waltham, Massachusetts 02451, United States
| | - Nancy Su
- Mechanistic and Structural Biology, Discovery Sciences, R&D, AstraZeneca, Waltham, Massachusetts 02451, United States
| | - Ryan Whatling
- Mechanistic and Structural Biology, Discovery Sciences, R&D, AstraZeneca, Cambridge CB2 0AA, U.K
| | - Matthew Wheeler
- Mechanistic and Structural Biology, Discovery Sciences, R&D, AstraZeneca, Cambridge CB2 0AA, U.K
| | - Jason G Kettle
- Medicinal Chemistry, Oncology R&D, AstraZeneca, Cambridge CB2 0AA, U.K
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13
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Lin Z, Cai Z, Li L, Wei Y, Ling Q. c-Jun N-terminal kinase 1/P53 signaling mediates intrinsic apoptosis of largemouth bass (Micropterus salmoides) hepatocytes under heat stress. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 947:174664. [PMID: 38997017 DOI: 10.1016/j.scitotenv.2024.174664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 06/20/2024] [Accepted: 07/08/2024] [Indexed: 07/14/2024]
Abstract
The increasing frequency of high-temperature extremes threatens largemouth bass Micropterus salmoides, a significant fish for freshwater ecosystems and aquaculture. Our previous studies at the transcript level suggested that heat stress induces hepatic apoptosis in largemouth bass. In the current study, we sought to validate these findings and further investigate the role of the c-Jun N-terminal kinase (JNK)/P53 signaling in hepatic apoptosis under heat stress. First, heat treatments were conducted in vivo and in vitro under different temperatures: 28 °C, 32 °C, and 37 °C. In primary hepatocytes subjected to heat treatment, cell viability was evaluated via the Cell Counting Kit-8, while mitochondrial membrane potential and nuclear morphology were assessed through JC-1 and Hoechst 33258 staining, respectively. We observed reductions in both cell viability and mitochondrial membrane potential (ΔΨm), along with alterations in nuclear morphology, in primary hepatocytes exposed to heat stress at temperatures of 32 °C and 37 °C. Quantitative real-time PCR revealed significant alterations in the expression profiles of intrinsic apoptosis-related genes within liver tissues under heat stress. Immunohistochemistry analysis revealed that JNK1 signaling increased as the temperature increased, JNK2 expression increased only at 37 °C, and JNK3 expression did not change with temperature. We speculate that JNK1 and JNK2 have pro- and anti-apoptotic effects, respectively. Western blot analysis conducted on cultured hepatocytes further validated these findings. JNK inhibition reduced hepatocyte apoptosis, improved nuclear morphology, and maintained ΔΨm even after 37 °C treatment. These results not only confirm that heat stress led to intrinsic apoptosis of hepatocytes but also indicated that JNK1 could mediate P53 expression and activate caspase-dependent intrinsic apoptosis in largemouth bass hepatocytes under such conditions. This study illuminates the physiological responses of largemouth bass to acute heat stress, offering valuable insights into the potential impacts of climate change on freshwater fishes and the sustainability of aquaculture.
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Affiliation(s)
- Zijie Lin
- School of Biology and Basic Medical Sciences, Suzhou Medical College of Soochow University, 215000, China
| | - Zhiying Cai
- School of Biology and Basic Medical Sciences, Suzhou Medical College of Soochow University, 215000, China
| | - Lingling Li
- School of Biology and Basic Medical Sciences, Suzhou Medical College of Soochow University, 215000, China
| | - Yekai Wei
- School of Biology and Basic Medical Sciences, Suzhou Medical College of Soochow University, 215000, China
| | - Qufei Ling
- School of Biology and Basic Medical Sciences, Suzhou Medical College of Soochow University, 215000, China.
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14
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Chohan KL, Kapoor P. Novel Approaches to Managing Patients with Relapsed and Refractory Waldenström Macroglobulinemia. Curr Hematol Malig Rep 2024:10.1007/s11899-024-00730-1. [PMID: 38970645 DOI: 10.1007/s11899-024-00730-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/26/2024] [Indexed: 07/08/2024]
Abstract
PURPOSE OF REVIEW Waldenström macroglobulinemia is a rare non-Hodgkin lymphoma (NHL) characterized by lymphoplasmacytic bone marrow infiltration associated with an immunoglobulin M (IgM) monoclonal gammopathy. Over the past two decades, a number of important novel therapies have emerged for the treatment of relapsed and refractory (R/R) WM. The purpose of this review is to discuss these novel agents. RECENT FINDINGS Chemoimmunotherapy which formed the basis treatment for R/R WM is slowly being replaced by novel targeted agents. These therapies, including Bruton's tyrosine kinase inhibitors, proteasome inhibitors, and B-cell lymphoma 2 inhibitors, have widened the landscape of management. Emerging therapies currently under investigation, such as bispecific T-cell engagers, chimeric antigen T-cell receptor therapy, and novel small molecule inhibitors, have additionally shown the potential to improve response and survival. The treatment of R/R WM has greatly evolved, in large part due to a greater understanding of the biology of WM, and the evaluation of novel targeted agents in the basket trials of NHL, showing early activity in the small WM cohorts. Combination regimens with these established and emerging novel therapies have the potential to further improve disease control and induce higher rates of deep responses. Strategies aimed at altering the disease trajectory would require randomized controlled trials to provide relevant data on optimal integration and sequencing of more effective and tolerable regimens earlier in the disease course.
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Affiliation(s)
| | - Prashant Kapoor
- Division of Hematology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.
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15
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Seiboldt T, Zeiser C, Nguyen D, Celikyürekli S, Herter S, Najafi S, Stroh-Dege A, Meulenbroeks C, Mack N, Salem-Altintas R, Westermann F, Schlesner M, Milde T, Kool M, Holland-Letz T, Vogler M, Peterziel H, Witt O, Oehme I. Synergy of retinoic acid and BH3 mimetics in MYC(N)-driven embryonal nervous system tumours. Br J Cancer 2024:10.1038/s41416-024-02740-5. [PMID: 38942989 DOI: 10.1038/s41416-024-02740-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 05/14/2024] [Accepted: 05/28/2024] [Indexed: 06/30/2024] Open
Abstract
BACKGROUND Certain paediatric nervous system malignancies have dismal prognoses. Retinoic acid (RA) is used in neuroblastoma treatment, and preclinical data indicate potential benefit in selected paediatric brain tumour entities. However, limited single-agent efficacy necessitates combination treatment approaches. METHODS We performed drug sensitivity profiling of 76 clinically relevant drugs in combination with RA in 16 models (including patient-derived tumouroids) of the most common paediatric nervous system tumours. Drug responses were assessed by viability assays, high-content imaging, and apoptosis assays and RA relevant pathways by RNAseq from treated models and patient samples obtained through the precision oncology programme INFORM (n = 2288). Immunoprecipitation detected BCL-2 family interactions, and zebrafish embryo xenografts were used for in vivo efficacy testing. RESULTS Group 3 medulloblastoma (MBG3) and neuroblastoma models were highly sensitive to RA treatment. RA induced differentiation and regulated apoptotic genes. RNAseq analysis revealed high expression of BCL2L1 in MBG3 and BCL2 in neuroblastomas. Co-treatments with RA and BCL-2/XL inhibitor navitoclax synergistically decreased viability at clinically achievable concentrations. The combination of RA with navitoclax disrupted the binding of BIM to BCL-XL in MBG3 and to BCL-2 in neuroblastoma, inducing apoptosis in vitro and in vivo. CONCLUSIONS RA treatment primes MBG3 and NB cells for apoptosis, triggered by navitoclax cotreatment.
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Affiliation(s)
- Till Seiboldt
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology (B310), German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
- National Center for Tumor Diseases Heidelberg, Heidelberg, Germany
- Faculty of Medicine, Heidelberg University, Heidelberg, Germany
| | - Constantia Zeiser
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology (B310), German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
- National Center for Tumor Diseases Heidelberg, Heidelberg, Germany
- Faculty of Medicine, Heidelberg University, Heidelberg, Germany
| | - Duy Nguyen
- Bioinformatics and Omics Data Analytics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Simay Celikyürekli
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology (B310), German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
- National Center for Tumor Diseases Heidelberg, Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
- Department of Pediatric Oncology, Hematology, Immunology and Pulmonology, Heidelberg University Hospital, Heidelberg, Germany
| | - Sonja Herter
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology (B310), German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
- National Center for Tumor Diseases Heidelberg, Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Sara Najafi
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology (B310), German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
- National Center for Tumor Diseases Heidelberg, Heidelberg, Germany
- Department of Pediatric Oncology, Hematology, Immunology and Pulmonology, Heidelberg University Hospital, Heidelberg, Germany
| | - Alexandra Stroh-Dege
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology (B310), German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
- National Center for Tumor Diseases Heidelberg, Heidelberg, Germany
| | | | - Norman Mack
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- National Center for Tumor Diseases Heidelberg, Heidelberg, Germany
- Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Rabia Salem-Altintas
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology (B310), German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
- National Center for Tumor Diseases Heidelberg, Heidelberg, Germany
- Faculty of Medicine, Heidelberg University, Heidelberg, Germany
| | - Frank Westermann
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- National Center for Tumor Diseases Heidelberg, Heidelberg, Germany
- Division of Neuroblastoma Genomics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Matthias Schlesner
- Bioinformatics and Omics Data Analytics, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Biomedical Informatics, Data Mining and Data Analytics, Faculty of Applied Computer Science and Medical Faculty, University of Augsburg, Augsburg, Germany
| | - Till Milde
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology (B310), German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
- National Center for Tumor Diseases Heidelberg, Heidelberg, Germany
- Department of Pediatric Oncology, Hematology, Immunology and Pulmonology, Heidelberg University Hospital, Heidelberg, Germany
| | - Marcel Kool
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- National Center for Tumor Diseases Heidelberg, Heidelberg, Germany
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
- University Medical Center Utrecht, Utrecht, the Netherlands
| | - Tim Holland-Letz
- Division of Biostatistics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Meike Vogler
- Institute for Experimental Pediatric Hematology and Oncology, Goethe-University Frankfurt, Frankfurt, Germany
- German Cancer Consortium (DKTK) partner site Frankfurt/Mainz, a partnership between DKFZ and University Hospital Frankfurt, Frankfurt, Germany
- University Cancer Center Frankfurt (UCT), University Hospital Frankfurt, Goethe-University Frankfurt, Frankfurt, Germany
| | - Heike Peterziel
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology (B310), German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
- National Center for Tumor Diseases Heidelberg, Heidelberg, Germany
| | - Olaf Witt
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Pediatric Oncology (B310), German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
- National Center for Tumor Diseases Heidelberg, Heidelberg, Germany
- Department of Pediatric Oncology, Hematology, Immunology and Pulmonology, Heidelberg University Hospital, Heidelberg, Germany
| | - Ina Oehme
- Hopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany.
- Clinical Cooperation Unit Pediatric Oncology (B310), German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany.
- National Center for Tumor Diseases Heidelberg, Heidelberg, Germany.
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16
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Liu L, Mo W, Chen M, Qu Y, Wang P, Liang Y, Yan X. Targeted inhibition of DHODH is synergistic with BCL2 blockade in HGBCL with concurrent MYC and BCL2 rearrangement. BMC Cancer 2024; 24:761. [PMID: 38918775 PMCID: PMC11197201 DOI: 10.1186/s12885-024-12534-w] [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: 10/27/2023] [Accepted: 06/18/2024] [Indexed: 06/27/2024] Open
Abstract
High-grade B-cell lymphoma (HGBCL), the subtype of non-Hodgkin lymphoma, to be relapsed or refractory in patients after initial therapy or salvage chemotherapy. Dual dysregulation of MYC and BCL2 is one of the important pathogenic mechanisms. Thus, combined targeting of MYC and BCL2 appears to be a promising strategy. Dihydroorotate dehydrogenase (DHODH) is the fourth rate-limiting enzyme for the de novo biosynthesis of pyrimidine. It has been shown to be a potential therapeutic target for multiple diseases. In this study, the DHODH inhibitor brequinar exhibited growth inhibition, cell cycle blockade, and apoptosis promotion in HGBCL cell lines with MYC and BCL2 rearrangements. The combination of brequinar and BCL2 inhibitors venetoclax had a synergistic inhibitory effect on the survival of DHL cells through different pathways. Venetoclax could upregulate MCL-1 and MYC expression, which has been reported as a resistance mechanism of BCL2 inhibitors. Brequinar downregulated MCL-1 and MYC, which could potentially overcome drug resistance to venetoclax in HGBCL cells. Furthermore, brequinar could downregulate a broad range of genes, including ribosome biosynthesis genes, which might contribute to its anti-tumor effects. In vivo studies demonstrated synergetic tumor growth inhibition in xenograft models with brequinar and venetoclax combination treatment. These results provide preliminary evidence for the rational combination of DHODH and BCL2 blockade in HGBCL with abnormal MYC and BCL2.
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Affiliation(s)
- Lin Liu
- Department of Hematology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China
| | - Wenbin Mo
- Department of Hematology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China
| | - Miao Chen
- Department of Hematology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China
| | - Yi Qu
- Department of Hematology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China
| | - Pingping Wang
- Department of Hematology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China
| | - Ying Liang
- Department of Hematology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China
| | - Xiaojing Yan
- Department of Hematology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.
- , No. 155, North Nanjing Road, Heping District, Shenyang, 110001, China.
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17
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Glover HL, Schreiner A, Dewson G, Tait SWG. Mitochondria and cell death. Nat Cell Biol 2024:10.1038/s41556-024-01429-4. [PMID: 38902422 DOI: 10.1038/s41556-024-01429-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 04/26/2024] [Indexed: 06/22/2024]
Abstract
Mitochondria are cellular factories for energy production, calcium homeostasis and iron metabolism, but they also have an unequivocal and central role in intrinsic apoptosis through the release of cytochrome c. While the subsequent activation of proteolytic caspases ensures that cell death proceeds in the absence of collateral inflammation, other phlogistic cell death pathways have been implicated in using, or engaging, mitochondria. Here we discuss the emerging complexities of intrinsic apoptosis controlled by the BCL-2 family of proteins. We highlight the emerging theory that non-lethal mitochondrial apoptotic signalling has diverse biological roles that impact cancer, innate immunity and ageing. Finally, we delineate the role of mitochondria in other forms of cell death, such as pyroptosis, ferroptosis and necroptosis, and discuss mitochondria as central hubs for the intersection and coordination of cell death signalling pathways, underscoring their potential for therapeutic manipulation.
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Affiliation(s)
- Hannah L Glover
- Cancer Research UK Scotland Institute, Glasgow, UK
- School of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Annabell Schreiner
- Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - Grant Dewson
- Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia.
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia.
| | - Stephen W G Tait
- Cancer Research UK Scotland Institute, Glasgow, UK.
- School of Cancer Sciences, University of Glasgow, Glasgow, UK.
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18
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Oger MJL, Vermeulen O, Lambert J, Madanu TL, Kestemont P, Cornet V. Down to size: Exploring the influence of plastic particle Dimensions on physiological and nervous responses in early-stage zebrafish. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 351:124094. [PMID: 38703983 DOI: 10.1016/j.envpol.2024.124094] [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: 02/28/2024] [Revised: 04/22/2024] [Accepted: 04/30/2024] [Indexed: 05/06/2024]
Abstract
The chorion is the first protective barrier set to prevent numerous pollutants from damaging the developing embryo. However, depending on their size, some nanoplastics (NPs) can pass through this barrier and reach the embryo, while all microplastics (MPs) remain on the outside. This study brings a straight approach to compare MPs and NPs, and assess their direct and indirect effects on zebrafish embryos and larvae. Zebrafish eggs were exposed before 2 h post fertilization (hpf) to polystyrene MPs (5 μm) and NPs (250 nm) at a concentration of 1000 μg/L until 96 hpf. Physiotoxicity and neurotoxicity were assessed prior and post-hatching through several biomarkers. Response to hypoxia (upregulation of hif-1aa and hif-1ab) were found in embryos exposed to MPs, and partly found in those exposed to NPs. Embryos exposed to NPs showed significant tachycardia, reduced O2 consumption and increased apoptosis in the eyes, whereas MPs affected the expressions of all genes related to the neurodevelopment of embryos (elavl3, pax2a, pax6a, act1b). Post-hatching, physiological responses were muted. MPs and NPs exposures ended by evaluating larval behaviours during dark-and-light cycles. Both sizes of plastic particles negatively affected the visual motor response (VMR) and vibrational startle response (VSR). Thigmotaxis levels were significantly increased by NPs whereas MPs showed anxiolytic properties. This study shows that both MPs and NPs affect the physiology and neurodevelopment of zebrafish at different levels, before and after hatching.
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Affiliation(s)
- Mathilde J L Oger
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth & Environment, University of Namur, Rue de Bruxelles, 61-B-5000, Namur, Belgium.
| | - Océane Vermeulen
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth & Environment, University of Namur, Rue de Bruxelles, 61-B-5000, Namur, Belgium
| | - Jérôme Lambert
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth & Environment, University of Namur, Rue de Bruxelles, 61-B-5000, Namur, Belgium
| | - Thomas L Madanu
- Laboratory of Inorganic Materials Chemistry (CMI), University of Namur, Rue de Bruxelles, 61-B-5000, Namur, Belgium
| | - Patrick Kestemont
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth & Environment, University of Namur, Rue de Bruxelles, 61-B-5000, Namur, Belgium
| | - Valérie Cornet
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth & Environment, University of Namur, Rue de Bruxelles, 61-B-5000, Namur, Belgium
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19
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Gong G, Wan W, Zhang X, Chen X, Yin J. Management of ROS and Regulatory Cell Death in Myocardial Ischemia-Reperfusion Injury. Mol Biotechnol 2024:10.1007/s12033-024-01173-y. [PMID: 38852121 DOI: 10.1007/s12033-024-01173-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 04/02/2024] [Indexed: 06/10/2024]
Abstract
Myocardial ischemia-reperfusion injury (MIRI) is fatal to patients, leading to cardiomyocyte death and myocardial remodeling. Reactive oxygen species (ROS) and oxidative stress play important roles in MIRI. There is a complex crosstalk between ROS and regulatory cell deaths (RCD) in cardiomyocytes, such as apoptosis, pyroptosis, autophagy, and ferroptosis. ROS is a double-edged sword. A reasonable level of ROS maintains the normal physiological activity of myocardial cells. However, during myocardial ischemia-reperfusion, excessive ROS generation accelerates myocardial damage through a variety of biological pathways. ROS regulates cardiomyocyte RCD through various molecular mechanisms. Targeting the removal of excess ROS has been considered an effective way to reverse myocardial damage. Many studies have applied antioxidant drugs or new advanced materials to reduce ROS levels to alleviate MIRI. Although the road from laboratory to clinic has been difficult, many scholars still persevere. This article reviews the molecular mechanisms of ROS inhibition to regulate cardiomyocyte RCD, with a view to providing new insights into prevention and treatment strategies for MIRI.
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Affiliation(s)
- Ge Gong
- Department of Geriatrics, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 211002, China
| | - Wenhui Wan
- Department of Geriatrics, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 211002, China
| | - Xinghu Zhang
- Department of Geriatrics, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 211002, China
| | - Xiangxuan Chen
- Department of Cardiology, the Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, 211100, China.
| | - Jian Yin
- Department of Orthopedics, the Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, 211100, China.
- Department of Orthopedics, Jiangning Clinical Medical College of Jiangsu Medical Vocational College, Nanjing, 211100, China.
- Department of Orthopedics, Jiangning Clinical Medical College of Nanjing Medical University Kangda College, Nanjing, 211100, China.
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20
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Chiba Y, Doi T, Obayashi K, Sumida K, Nagasaka S, Wang KY, Yamasaki K, Masago K, Matsushita H, Kuroda H, Yatera K, Endo M. Caspase-4 promotes metastasis and interferon-γ-induced pyroptosis in lung adenocarcinoma. Commun Biol 2024; 7:699. [PMID: 38849594 PMCID: PMC11161495 DOI: 10.1038/s42003-024-06402-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 05/30/2024] [Indexed: 06/09/2024] Open
Abstract
Caspase-4 (CASP4) is a member of the inflammatory caspase subfamily and promotes inflammation. Here, we report that CASP4 in lung adenocarcinoma cells contributes to both tumor progression via angiogenesis and tumor hyperkinesis and tumor cell killing in response to high interferon (IFN)-γ levels. We observe that elevated CASP4 expression in the primary tumor is associated with cancer progression in patients with lung adenocarcinoma. Further, CASP4 knockout attenuates tumor angiogenesis and metastasis in subcutaneous tumor mouse models. CASP4 enhances the expression of genes associated with angiogenesis and cell migration in lung adenocarcinoma cell lines through nuclear factor kappa-light chain-enhancer of activated B cell signaling without stimulation by lipopolysaccharide or tumor necrosis factor. CASP4 is induced by endoplasmic reticulum stress or IFN-γ via signal transducer and activator of transcription 1. Most notably, lung adenocarcinoma cells with high CASP4 expression are more prone to IFN-γ-induced pyroptosis than those with low CASP4 expression. Our findings indicate that the CASP4 level in primary lung adenocarcinoma can predict metastasis and responsiveness to high-dose IFN-γ therapy due to cancer cell pyroptosis.
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Affiliation(s)
- Yosuke Chiba
- Department of Respiratory Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
- Department of Molecular Biology, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Tomomitsu Doi
- Department of Molecular Biology, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Kunie Obayashi
- Department of Molecular Biology, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Kazuhiro Sumida
- Department of Molecular Biology, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Shohei Nagasaka
- Department of Molecular Biology, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Ke-Yong Wang
- Shared-Use Research Center, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Kei Yamasaki
- Department of Respiratory Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Katsuhiro Masago
- Department of Pathology and Molecular Diagnostics, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Hirokazu Matsushita
- Division of Translational Oncoimmunology, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Hiroaki Kuroda
- Department of Surgery, Teikyo University Mizonokuchi Hospital, Kawasaki, Japan
| | - Kazuhiro Yatera
- Department of Respiratory Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Motoyoshi Endo
- Department of Molecular Biology, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan.
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21
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Vu A, Glassman I, Campbell G, Yeganyan S, Nguyen J, Shin A, Venketaraman V. Host Cell Death and Modulation of Immune Response against Mycobacterium tuberculosis Infection. Int J Mol Sci 2024; 25:6255. [PMID: 38892443 PMCID: PMC11172987 DOI: 10.3390/ijms25116255] [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: 05/01/2024] [Revised: 05/30/2024] [Accepted: 06/03/2024] [Indexed: 06/21/2024] Open
Abstract
Mycobacterium tuberculosis (Mtb) is the causative agent of tuberculosis (TB), a prevalent infectious disease affecting populations worldwide. A classic trait of TB pathology is the formation of granulomas, which wall off the pathogen, via the innate and adaptive immune systems. Some key players involved include tumor necrosis factor-alpha (TNF-α), foamy macrophages, type I interferons (IFNs), and reactive oxygen species, which may also show overlap with cell death pathways. Additionally, host cell death is a primary method for combating and controlling Mtb within the body, a process which is influenced by both host and bacterial factors. These cell death modalities have distinct molecular mechanisms and pathways. Programmed cell death (PCD), encompassing apoptosis and autophagy, typically confers a protective response against Mtb by containing the bacteria within dead macrophages, facilitating their phagocytosis by uninfected or neighboring cells, whereas necrotic cell death benefits the pathogen, leading to the release of bacteria extracellularly. Apoptosis is triggered via intrinsic and extrinsic caspase-dependent pathways as well as caspase-independent pathways. Necrosis is induced via various pathways, including necroptosis, pyroptosis, and ferroptosis. Given the pivotal role of host cell death pathways in host defense against Mtb, therapeutic agents targeting cell death signaling have been investigated for TB treatment. This review provides an overview of the diverse mechanisms underlying Mtb-induced host cell death, examining their implications for host immunity. Furthermore, it discusses the potential of targeting host cell death pathways as therapeutic and preventive strategies against Mtb infection.
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Affiliation(s)
| | | | | | | | | | | | - Vishwanath Venketaraman
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA (G.C.); (A.S.)
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22
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Liu AB, Liu J, Wang S, Ma L, Zhang JF. Biological role and expression of translationally controlled tumor protein (TCTP) in tumorigenesis and development and its potential for targeted tumor therapy. Cancer Cell Int 2024; 24:198. [PMID: 38835077 DOI: 10.1186/s12935-024-03355-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 05/03/2024] [Indexed: 06/06/2024] Open
Abstract
Translationally controlled tumor protein (TCTP), also known as histamine-releasing factor (HRF) or fortilin, is a highly conserved protein found in various species. To date, multiple studies have demonstrated the crucial role of TCTP in a wide range of cellular pathophysiological processes, including cell proliferation and survival, cell cycle regulation, cell death, as well as cell migration and movement, all of which are major pathogenic mechanisms of tumorigenesis and development. This review aims to provide an in-depth analysis of the functional role of TCTP in tumor initiation and progression, with a particular focus on cell proliferation, cell death, and cell migration. It will highlight the expression and pathological implications of TCTP in various tumor types, summarizing the current prevailing therapeutic strategies that target TCTP.
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Affiliation(s)
- An-Bu Liu
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, 750000, Ningxia, China
| | - Jia Liu
- Medical Experimental Center, General Hospital of Ningxia Medical University, Yinchuan, 750000, Ningxia, China
| | - Sheng Wang
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, 750000, Ningxia, China
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750000, Ningxia, China
| | - Lei Ma
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, 750000, Ningxia, China.
| | - Jun-Fei Zhang
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, 750000, Ningxia, China.
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23
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Kim SH, Chun C, Yoon TY. Profiling of BCLxL Protein Complexes in Non-Small Cell Lung Cancer Cells via Multiplexed Single-Molecule Pull-Down and Co-Immunoprecipitation. Anal Chem 2024; 96:8932-8941. [PMID: 38728439 DOI: 10.1021/acs.analchem.3c05801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2024]
Abstract
We introduce multiplexed single-molecule pull-down and co-immunoprecipitation, named m-SMPC, an analysis tool for profiling multiple protein complexes within a single reaction chamber using single-molecule fluorescence imaging. We employed site-selective conjugation of biotin and fluorescent dye directly onto the monoclonal antibodies, which completed an independent sandwich immunoassay without the issue of host cross-reactivity. We applied this technique to profile endogenous B-cell lymphoma extra-large (BCLxL) complexes in non-small cell lung cancer (NSCLC) cells. Up to three distinct BCLxL complexes were successfully detected simultaneously within a single reaction chamber without fluorescence signal crosstalk. Notably, the NSCLC cell line EBC-1 exhibited high BCLxL-BAX and BCLxL-BAK levels, which closely paralleled a strong response to the BCLxL inhibitor A-1331852. This streamlined method offers the potential for quantitative biomarkers derived from protein complex profiling, paving the way for their application in protein complex-targeted therapies.
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Affiliation(s)
- Shi Ho Kim
- Department of Biomarker Discovery, PROTEINA Co., Ltd, Seoul 08826, South Korea
| | - Changju Chun
- School of Biological Sciences, Seoul National University, Seoul 08826, South Korea
- Institute for Molecular Biology and Genetics, Seoul National University, Seoul 08826, South Korea
| | - Tae-Young Yoon
- Department of Biomarker Discovery, PROTEINA Co., Ltd, Seoul 08826, South Korea
- School of Biological Sciences, Seoul National University, Seoul 08826, South Korea
- Institute for Molecular Biology and Genetics, Seoul National University, Seoul 08826, South Korea
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24
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Chiou JT, Chang LS. ONC212 enhances YM155 cytotoxicity by triggering SLC35F2 expression and NOXA-dependent MCL1 degradation in acute myeloid leukemia cells. Biochem Pharmacol 2024; 224:116242. [PMID: 38679209 DOI: 10.1016/j.bcp.2024.116242] [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: 01/26/2024] [Revised: 04/02/2024] [Accepted: 04/25/2024] [Indexed: 05/01/2024]
Abstract
Although the anticancer activity of ONC212 has been reported, the precise mechanism underlying its apoptotic effects remains unclear. In this study, we investigated the apoptotic mechanism of ONC212 in acute myeloid leukemia (AML) cells. ONC212 induces apoptosis, MCL1 downregulation, and mitochondrial depolarization in AML U937 cells. Ectopic MCL1 expression alleviates mitochondria-mediated apoptosis in ONC212-treated U937 cells. ONC212 triggers AKT phosphorylation, inducing NOX4-dependent ROS production and promoting HuR transcription. HuR-mediated ATF4 mRNA stabilization stimulates NOXA and SLC35F2 expression; ONC212-induced upregulation of NOXA leads to MCL1 degradation. The synergistic effect of ONC212 on YM155 cytotoxicity was dependent on increased SLC35F2 expression. In addition, YM155 feedback facilitated the activation of the ONC212-induced signaling pathway. A similar mechanism explains ONC212- and ONC212/YM155-induced AML HL-60 cell death. The continuous treatment of U937 cells with the benzene metabolite hydroquinone (HQ) generated U937/HQ cells, exhibiting enhanced responsiveness to the cytotoxic effects of ONC212. In U937/HQ cells, ONC212 triggered apoptosis through NOXA-mediated MCL1 downregulation, enhancing YM155 cytotoxicity. Collectively, our data suggested that ONC212 upregulated SLC35F2 expression and triggered NOXA-mediated MCL1 degradation in U937, U937/HQ, and HL-60 cells by activating the AKT/NOX4/HuR/ATF4 pathway. The ONC212-induced signaling pathway showed anti-AML activity and enhanced YM155 cytotoxicity.
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MESH Headings
- Humans
- Myeloid Cell Leukemia Sequence 1 Protein/metabolism
- Myeloid Cell Leukemia Sequence 1 Protein/genetics
- Myeloid Cell Leukemia Sequence 1 Protein/biosynthesis
- Leukemia, Myeloid, Acute/metabolism
- Leukemia, Myeloid, Acute/drug therapy
- Leukemia, Myeloid, Acute/pathology
- Leukemia, Myeloid, Acute/genetics
- Proto-Oncogene Proteins c-bcl-2/metabolism
- Proto-Oncogene Proteins c-bcl-2/genetics
- U937 Cells
- Imidazoles/pharmacology
- Naphthoquinones/pharmacology
- HL-60 Cells
- Antineoplastic Agents/pharmacology
- Apoptosis/drug effects
- Drug Synergism
- Benzyl Compounds
- Heterocyclic Compounds, 3-Ring
- Sulfonamides
- Bridged Bicyclo Compounds, Heterocyclic
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Affiliation(s)
- Jing-Ting Chiou
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Long-Sen Chang
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
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25
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Xie Y, Yuan Q, Tang B, Xie Y, Cao Y, Qiu Y, Zeng J, Wang Z, Su H, Zhang C. CPT1A Protects Podocytes From Lipotoxicity and Apoptosis In Vitro and Alleviates Diabetic Nephropathy In Vivo. Diabetes 2024; 73:879-895. [PMID: 38506804 DOI: 10.2337/db23-0811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 03/12/2024] [Indexed: 03/21/2024]
Abstract
Defective fatty acid oxidation (FAO) has been implicated in diabetic kidney disease (DKD), yet little is known about the role of carnitine palmitoyltransferase-1A (CPT1A), a pivotal rate-limiting enzyme of FAO, in the progression of DKD. Here, we investigate whether CPT1A is a reliable therapeutic target for DKD. We first confirmed the downregulation expression of CPT1A in glomeruli from patients with diabetes. We further evaluated the function of CPT1A in diabetic models. Overexpression of CPT1A exhibited protective effects in diabetic conditions, improving albuminuria and glomerular sclerosis as well as mitigating glomerular lipid deposits and podocyte injury in streptozotocin-induced diabetic mice. Mechanistically, CPT1A not only fostered lipid consumption via fatty acid metabolism pathways, thereby reducing lipotoxicity, but also anchored Bcl2 to the mitochondrial membrane, thence preventing cytochrome C release and inhibiting the mitochondrial apoptotic process. Furthermore, a novel transcription factor of CPT1A, FOXA1, was identified. We elucidate the crucial role of CPT1A in mitigating podocyte injury and the progression of DKD, indicating that targeting CPT1A may be a promising avenue for DKD treatment. ARTICLE HIGHLIGHTS
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Affiliation(s)
- Yajuan Xie
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qian Yuan
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ben Tang
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yaru Xie
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yiling Cao
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yang Qiu
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jieyu Zeng
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhiwen Wang
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | | | - Chun Zhang
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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26
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Badawey SE, Heikal L, Teleb M, Abu-Serie M, Bakr BA, Khattab SN, El-Khordagui L. Biosurfactant-amphiphilized hyaluronic acid: A dual self-assembly anticancer nanoconjugate and drug vector for synergistic chemotherapy. Int J Biol Macromol 2024; 271:132545. [PMID: 38815938 DOI: 10.1016/j.ijbiomac.2024.132545] [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: 02/08/2024] [Revised: 05/01/2024] [Accepted: 05/20/2024] [Indexed: 06/01/2024]
Abstract
Novel amphiphilic nanoconjugates of hyaluronic acid (HA), 50 kDa (HA50) and 100 kDa (HA100), and the lipopeptide biosurfactant surfactin (SF) were developed for potential anticancer applications. Physicochemical characterization indicated the formation of an ester conjugate (HA: SF molar ratio 1: 40) with the HA50-SF derivative exhibiting higher degree of substitution, hydrolytic stability, and surface activity. Self-assembly resulted in nanomicelles with smaller size and greater negative charge relative to SF micelles. Biological data demonstrated distinct anticancer activity of HA50-SF which displayed greater synergistic cytotoxicity and selectivity for MDA-MB 231 and MCF-7 breast cancer cells alongside greater modulation of apoptosis-related biomarkers leading to apoptosis. As bioactive vector for chemotherapeutic agents, the selected HA50-SF nanoconjugate efficiently (70 %) entrapped berberine (BER) producing a sustained release BER-HA50-SF synergistic anticancer nanoformulation. Lactoferrin (Lf) coating for dual HA/Lf targeting endowed Lf/BER-HA50-SF with significantly greater selectivity for both cell lines. A murine Ehrlich breast cancer model provided evidence for the efficacy and safety of Lf/BER-HA50-SF via tumoral, histological, immunohistochemical, molecular and systemic toxicity assessments. Thus, HA-SF nanoconjugates integrating the HA and SF properties and biofunctionalties present a novel biopolymer-biosurfactant platform of benefit to oncology nanomedicine and possibly other applications.
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Affiliation(s)
- Sara E Badawey
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
| | - Lamia Heikal
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt.
| | - Mohamed Teleb
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Marwa Abu-Serie
- Medical Biotechnology Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria, Egypt
| | - Basant A Bakr
- Department of Zoology, Faculty of Science, Alexandria University 21321, Egypt
| | - Sherine N Khattab
- Chemistry Department, Faculty of Science, Alexandria University, 21321 Alexandria, Egypt
| | - Labiba El-Khordagui
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
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27
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Helgoe J, Davy SK, Weis VM, Rodriguez-Lanetty M. Triggers, cascades, and endpoints: connecting the dots of coral bleaching mechanisms. Biol Rev Camb Philos Soc 2024; 99:715-752. [PMID: 38217089 DOI: 10.1111/brv.13042] [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: 03/02/2023] [Revised: 12/08/2023] [Accepted: 12/12/2023] [Indexed: 01/15/2024]
Abstract
The intracellular coral-dinoflagellate symbiosis is the engine that underpins the success of coral reefs, one of the most diverse ecosystems on the planet. However, the breakdown of the symbiosis and the loss of the microalgal symbiont (i.e. coral bleaching) due to environmental changes are resulting in the rapid degradation of coral reefs globally. There is an urgent need to understand the cellular physiology of coral bleaching at the mechanistic level to help develop solutions to mitigate the coral reef crisis. Here, at an unprecedented scope, we present novel models that integrate putative mechanisms of coral bleaching within a common framework according to the triggers (initiators of bleaching, e.g. heat, cold, light stress, hypoxia, hyposalinity), cascades (cellular pathways, e.g. photoinhibition, unfolded protein response, nitric oxide), and endpoints (mechanisms of symbiont loss, e.g. apoptosis, necrosis, exocytosis/vomocytosis). The models are supported by direct evidence from cnidarian systems, and indirectly through comparative evolutionary analyses from non-cnidarian systems. With this approach, new putative mechanisms have been established within and between cascades initiated by different bleaching triggers. In particular, the models provide new insights into the poorly understood connections between bleaching cascades and endpoints and highlight the role of a new mechanism of symbiont loss, i.e. 'symbiolysosomal digestion', which is different from symbiophagy. This review also increases the approachability of bleaching physiology for specialists and non-specialists by mapping the vast landscape of bleaching mechanisms in an atlas of comprehensible and detailed mechanistic models. We then discuss major knowledge gaps and how future research may improve the understanding of the connections between the diverse cascade of cellular pathways and the mechanisms of symbiont loss (endpoints).
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Affiliation(s)
- Joshua Helgoe
- Department of Biological Sciences, Institute of Environment, Florida International University, 11200 SW 8th Street, OE 167, Miami, FL, USA
| | - Simon K Davy
- School of Biological Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
| | - Virginia M Weis
- Department of Integrative Biology, Oregon State University, 2701 SW Campus Way, 2403 Cordley Hall, Corvallis, OR, USA
| | - Mauricio Rodriguez-Lanetty
- Department of Biological Sciences, Institute of Environment, Florida International University, 11200 SW 8th Street, OE 167, Miami, FL, USA
- Department of Biological Sciences, Biomolecular Sciences Institute, Florida International University, 11200 SW 8th Street, Miami, FL, USA
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28
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Cauwelier C, de Ridder I, Bultynck G. Recent advances in canonical versus non-canonical Ca 2+-signaling-related anti-apoptotic Bcl-2 functions and prospects for cancer treatment. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119713. [PMID: 38521468 DOI: 10.1016/j.bbamcr.2024.119713] [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: 06/03/2023] [Revised: 01/11/2024] [Accepted: 03/20/2024] [Indexed: 03/25/2024]
Abstract
Cell fate is tightly controlled by a continuous balance between cell survival and cell death inducing mechanisms. B-cell lymphoma 2 (Bcl-2)-family members, composed of effectors and regulators, not only control apoptosis at the level of the mitochondria but also by impacting the intracellular Ca2+ homeostasis and dynamics. On the one hand, anti-apoptotic protein Bcl-2, prevents mitochondrial outer membrane permeabilization (MOMP) by scaffolding and neutralizing proapoptotic Bcl-2-family members via its hydrophobic cleft (region composed of BH-domain 1-3). On the other hand, Bcl-2 suppress pro-apoptotic Ca2+ signals by binding and inhibiting IP3 receptors via its BH4 domain, which is structurally exiled from the hydrophobic cleft by a flexible loop region (FLR). As such, Bcl-2 prevents excessive Ca2+ transfer from ER to mitochondria. Whereas regulation of both pathways requires different functional regions of Bcl-2, both seem to be connected in cancers that overexpress Bcl-2 in a life-promoting dependent manner. Here we discuss the anti-apoptotic canonical and non-canonical role, via calcium signaling, of Bcl-2 in health and cancer and evolving from this the proposed anti-cancer therapies with their shortcomings. We also argue how some cancers, with the major focus on diffuse large B-cell lymphoma (DLBCL) are difficult to treat, although theoretically prime marked for Bcl-2-targeting therapeutics. Further work is needed to understand the non-canonical functions of Bcl-2 also at organelles beyond the mitochondria, the interaction partners outside the Bcl-2 family as well as their ability to target or exploit these functions as therapeutic strategies in diseases.
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Affiliation(s)
- Claire Cauwelier
- KU Leuven, Lab. Molecular & Cellular Signaling, Dep. Cellular & Molecular Medicine, Campus Gasthuisberg O/N-I bus 802, Herestraat 49, BE-3000 Leuven, Belgium
| | - Ian de Ridder
- KU Leuven, Lab. Molecular & Cellular Signaling, Dep. Cellular & Molecular Medicine, Campus Gasthuisberg O/N-I bus 802, Herestraat 49, BE-3000 Leuven, Belgium
| | - Geert Bultynck
- KU Leuven, Lab. Molecular & Cellular Signaling, Dep. Cellular & Molecular Medicine, Campus Gasthuisberg O/N-I bus 802, Herestraat 49, BE-3000 Leuven, Belgium.
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29
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Vicente ATS, Salvador JAR. PROteolysis-Targeting Chimeras (PROTACs) in leukemia: overview and future perspectives. MedComm (Beijing) 2024; 5:e575. [PMID: 38845697 PMCID: PMC11154823 DOI: 10.1002/mco2.575] [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: 01/04/2024] [Revised: 04/23/2024] [Accepted: 04/25/2024] [Indexed: 06/09/2024] Open
Abstract
Leukemia is a heterogeneous group of life-threatening malignant disorders of the hematopoietic system. Immunotherapy, radiotherapy, stem cell transplantation, targeted therapy, and chemotherapy are among the approved leukemia treatments. Unfortunately, therapeutic resistance, side effects, relapses, and long-term sequelae occur in a significant proportion of patients and severely compromise the treatment efficacy. The development of novel approaches to improve outcomes is therefore an unmet need. Recently, novel leukemia drug discovery strategies, including targeted protein degradation, have shown potential to advance the field of personalized medicine for leukemia patients. Specifically, PROteolysis-TArgeting Chimeras (PROTACs) are revolutionary compounds that allow the selective degradation of a protein by the ubiquitin-proteasome system. Developed against a wide range of cancer targets, they show promising potential in overcoming many of the drawbacks associated with conventional therapies. Following the exponential growth of antileukemic PROTACs, this article reviews PROTAC-mediated degradation of leukemia-associated targets. Chemical structures, in vitro and in vivo activities, pharmacokinetics, pharmacodynamics, and clinical trials of PROTACs are critically discussed. Furthermore, advantages, challenges, and future perspectives of PROTACs in leukemia are covered, in order to understand the potential that these novel compounds may have as future drugs for leukemia treatment.
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Affiliation(s)
- André T. S. Vicente
- Laboratory of Pharmaceutical ChemistryFaculty of PharmacyUniversity of CoimbraCoimbraPortugal
- Center for Neuroscience and Cell BiologyUniversity of CoimbraCoimbraPortugal
- Center for Innovative Biomedicine and Biotechnology (CIBB)University of CoimbraCoimbraPortugal
| | - Jorge A. R. Salvador
- Laboratory of Pharmaceutical ChemistryFaculty of PharmacyUniversity of CoimbraCoimbraPortugal
- Center for Neuroscience and Cell BiologyUniversity of CoimbraCoimbraPortugal
- Center for Innovative Biomedicine and Biotechnology (CIBB)University of CoimbraCoimbraPortugal
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30
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Chu CS, Chen YT, Liang WZ. Investigation of the mechanisms behind ochratoxin A-induced cytotoxicity in human astrocytes and the protective effects of N-acetylcysteine. J Appl Toxicol 2024. [PMID: 38812125 DOI: 10.1002/jat.4652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/09/2024] [Accepted: 05/20/2024] [Indexed: 05/31/2024]
Abstract
Ochratoxin A (OTA) is a type of mycotoxin commonly found in raw and processed foods. It is essential to be aware of this toxin, as it can harm your health if consumed in high quantities. OTA can induce toxic effects in various cell models. However, a more comprehensive understanding of the harmful effects of OTA on human astrocytes is required. This study evaluated OTA's neurotoxic effects on the Gibco® Human Astrocyte (GHA) cell line, its underlying mechanisms, and the antioxidant N-acetylcysteine (NAC) ability to prevent them. OTA exposure within 5-30 μM has induced concentration-dependent cytotoxicity. In the OTA-treated cells, the levels of reactive oxygen species (ROS) were found to be significantly increased, while the glutathione (GSH) contents were found to decrease considerably. The western blotting of OTA-treated cells has revealed increased Bax, cleaved caspase-9/caspase-3 protein levels, and increased Bax/Bcl-2 ratio. In addition, exposure to OTA has resulted in the induction of antioxidant responses associated with the protein expressions of Nrf2, HO-1, and NQO1. On the other hand, the pretreatment with NAC has partially alleviated the significant toxic effects of OTA. In conclusion, our findings suggest that oxidative stress and apoptosis are involved in the OTA-induced cytotoxicity in GHA cells. NAC could act as a protective agent against OTA-induced oxidative damage.
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Affiliation(s)
- Che-Sheng Chu
- Department of Psychiatry, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Ying-Tso Chen
- Department of Neurosurgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Wei-Zhe Liang
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
- Department of Pharmacy and Master Program, College of Pharmacy and Health Care, Tajen University, Pingtung County, Taiwan
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31
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Guo X, He L, Xu W, Wang W, Feng X, Fu Y, Zhang X, Ding RB, Qi X, Bao J, Luo S. αO-Conotoxin GeXIVA[1,2] Suppresses In Vivo Tumor Growth of Triple-Negative Breast Cancer by Inhibiting AKT-mTOR, STAT3 and NF-κB Signaling Mediated Proliferation and Inducing Apoptosis. Mar Drugs 2024; 22:252. [PMID: 38921563 PMCID: PMC11205035 DOI: 10.3390/md22060252] [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: 04/09/2024] [Revised: 05/10/2024] [Accepted: 05/28/2024] [Indexed: 06/27/2024] Open
Abstract
Breast cancer is one of the leading causes of cancer mortality worldwide, and triple-negative breast cancer (TNBC) is the most problematic subtype. There is an urgent need to develop novel drug candidates for TNBC. Marine toxins are a valuable source for drug discovery. We previously identified αO-conotoxin GeXIVA[1,2] from Conus generalis, which is a selective antagonist of α9 nicotinic acetylcholine receptors (nAChRs). Recent studies indicated that α9 nAChR expression is positively correlated with breast cancer development; thus, α9 nAChR could serve as a therapeutic target for breast cancer. In this study, we aimed to investigate the in vivo antitumor effects of GeXIVA[1,2] on TNBC and to elucidate its underlying anticancer mechanism. Our data showed that GeXIVA[1,2] effectively suppressed 4T1 tumor growth in vivo at a very low dose of 0.1 nmol per mouse. Our results uncovered that the antitumor mechanism of GeXIVA[1,2] simultaneously induced apoptosis and blocked proliferation. Further investigations revealed that GeXIVA[1,2]-induced Caspase-3-dependent apoptosis was achieved through regulating Bax/Bcl-2 balance, and GeXIVA[1,2]-inhibited proliferation was mediated by the downregulation of the AKT-mTOR, STAT3 and NF-κB signaling pathways. Our study provides valuable arguments to demonstrate the potential of GeXIVA[1,2] as a novel marine-derived anticancer drug candidate for the treatment of TNBC.
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Affiliation(s)
- Xijun Guo
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
| | - Leping He
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
| | - Weifeng Xu
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
| | - Wanrong Wang
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
| | - Xiaoli Feng
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
| | - Yuanfeng Fu
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
| | - Xiaofan Zhang
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
| | - Ren-Bo Ding
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China
| | - Xingzhu Qi
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
| | - Jiaolin Bao
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China
| | - Sulan Luo
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Collaborative Innovation Center of One Health, Hainan University, Haikou 570228, China; (X.G.); (L.H.); (W.X.); (W.W.); (X.F.); (Y.F.); (X.Z.); (R.-B.D.); (X.Q.)
- Guangxi Key Laboratory of Special Biomedicine, School of Medicine, Guangxi University, Nanning 530004, China
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32
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Philpot P, Graumuller F, Melchiorre N, Prahaladan V, Takada X, Chandran S, Guillermo M, Dickler D, Aghai ZH, Das P, Bhandari V. Hyperoxia-Induced miR-195 Causes Bronchopulmonary Dysplasia in Neonatal Mice. Biomedicines 2024; 12:1208. [PMID: 38927415 PMCID: PMC11201213 DOI: 10.3390/biomedicines12061208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/21/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024] Open
Abstract
Background: Exposure to hyperoxia is an important factor in the development of bronchopulmonary dysplasia (BPD) in preterm newborns. MicroRNAs (miRs) have been implicated in the pathogenesis of BPD and provide a potential therapeutic target. Methods: This study was conducted utilizing a postnatal animal model of experimental hyperoxia-induced murine BPD to investigate the expression and function of miR-195 as well as its molecular signaling targets within developing mouse lung tissue. Results: miR-195 expression levels increased in response to hyperoxia in male and female lungs, with the most significant elevation occurring in 40% O2 (mild) and 60% O2 (moderate) BPD. The inhibition of miR-195 improved pulmonary morphology in the hyperoxia-induced BPD model in male and female mice with females showing more resistance to injury and better recovery of alveolar chord length, septal thickness, and radial alveolar count. Additionally, we reveal miR-195-dependent signaling pathways involved in BPD and identify PH domain leucine-rich repeat protein phosphatase 2 (PHLPP2) as a novel specific target protein of miR-195. Conclusions: Our data demonstrate that high levels of miR-195 in neonatal lungs cause the exacerbation of hyperoxia-induced experimental BPD while its inhibition results in amelioration. This finding suggests a therapeutic potential of miR-195 inhibition in preventing BPD.
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Affiliation(s)
- Patrick Philpot
- Division of Neonatology, Department of Pediatrics, Thomas Jefferson University, Nemours, Philadelphia, PA 19107, USA; (P.P.); (Z.H.A.)
- Division of Neonatology, Department of Pediatrics, Drexel University College of Medicine, Philadelphia, PA 19102, USA; (V.P.); (P.D.)
| | - Fred Graumuller
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
| | - Nicole Melchiorre
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
| | - Varsha Prahaladan
- Division of Neonatology, Department of Pediatrics, Drexel University College of Medicine, Philadelphia, PA 19102, USA; (V.P.); (P.D.)
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
| | - Xander Takada
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
| | - Srinarmadha Chandran
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
| | - Melissa Guillermo
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
| | - David Dickler
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
| | - Zubair H. Aghai
- Division of Neonatology, Department of Pediatrics, Thomas Jefferson University, Nemours, Philadelphia, PA 19107, USA; (P.P.); (Z.H.A.)
| | - Pragnya Das
- Division of Neonatology, Department of Pediatrics, Drexel University College of Medicine, Philadelphia, PA 19102, USA; (V.P.); (P.D.)
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
| | - Vineet Bhandari
- Division of Neonatology, Department of Pediatrics, Drexel University College of Medicine, Philadelphia, PA 19102, USA; (V.P.); (P.D.)
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
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Lee JK, Wang X, Wang J, Rosales JL, Lee KY. PKA inhibition kills L-asparaginase-resistant leukemic cells from relapsed acute lymphoblastic leukemia patients. Cell Death Discov 2024; 10:257. [PMID: 38802344 PMCID: PMC11130271 DOI: 10.1038/s41420-024-02028-w] [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: 02/20/2024] [Revised: 05/08/2024] [Accepted: 05/14/2024] [Indexed: 05/29/2024] Open
Abstract
Despite the success in treating newly diagnosed pediatric acute lymphoblastic leukemia (aLL), the long-term cure rate for the 20% of children who relapse is poor, making relapsed aLL the primary cause of cancer death in children. By unbiased genome-wide retroviral RNAi screening and knockdown studies, we previously discovered opioid receptor mu 1 (OPRM1) as a new aLL cell resistance biomarker for the aLL chemotherapeutic drug, L-asparaginase, i.e., OPRM1 loss triggers L-asparaginase resistance. Indeed, aLL cell OPRM1 level is inversely proportional to L-asparaginase IC50: the lower the OPRM1 level, the higher the L-asparaginase IC50, indicating that aLL cells expressing reduced OPRM1 levels show resistance to L-asparaginase. In the current study, we utilized OPRM1-expressing and -knockdown aLL cells as well as relapsed patient aLL cells to identify candidate targeted therapy for L-asparaginase-resistant aLL. In OPRM1-expressing cells, L-asparaginase induces apoptosis via a cascade of events that include OPRM1-mediated decline in [cAMP]i, downregulation of PKA-mediated BAD S118 phosphorylation that can be reversed by 8-CPT-cAMP, cyt C release from the mitochondria, and subsequent caspase activation and PARP1 cleavage. The critical role of PKA inhibition due to a decrease in [cAMP]i in this apoptotic process is evident in the killing of OPRM1-knockdown and low OPRM1-expressing relapsed patient aLL cells by the PKA inhibitors, H89 and 14-22 amide. These findings demonstrate for the first time that PKA can be targeted to kill aLL cells resistant to L-asparaginase due to OPRM1 loss, and that H89 and 14-22 amide may be utilized to destroy L-asparaginase-resistant patient aLL cells.
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Affiliation(s)
- Jung Kwon Lee
- Department of Cell Biology & Anatomy, Arnie Charbonneau Cancer and Alberta Children's Hospital Research Institutes, University of Calgary, Calgary, AB, Canada
| | - Xidi Wang
- Department of Pathogen Biology and Immunology, Health Science Center, Ningbo University, Ningbo, China
| | - Jinghua Wang
- Department of Hematology, Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Jesusa L Rosales
- Department of Cell Biology & Anatomy, Arnie Charbonneau Cancer and Alberta Children's Hospital Research Institutes, University of Calgary, Calgary, AB, Canada
| | - Ki-Young Lee
- Department of Cell Biology & Anatomy, Arnie Charbonneau Cancer and Alberta Children's Hospital Research Institutes, University of Calgary, Calgary, AB, Canada.
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Silva AO, Bitencourt TC, Vargas JE, Fraga LR, Filippi-Chiela E. Modulation of tumor plasticity by senescent cells: Deciphering basic mechanisms and survival pathways to unravel therapeutic options. Genet Mol Biol 2024; 47Suppl 1:e20230311. [PMID: 38805699 PMCID: PMC11132560 DOI: 10.1590/1678-4685-gmb-2023-0311] [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: 11/02/2023] [Accepted: 03/21/2024] [Indexed: 05/30/2024] Open
Abstract
Senescence is a cellular state in which the cell loses its proliferative capacity, often irreversibly. Physiologically, it occurs due to a limited capacity of cell division associated with telomere shortening, the so-called replicative senescence. It can also be induced early due to DNA damage, oncogenic activation, oxidative stress, or damage to other cellular components (collectively named induced senescence). Tumor cells acquire the ability to bypass replicative senescence, thus ensuring the replicative immortality, a hallmark of cancer. Many anti-cancer therapies, however, can lead tumor cells to induced senescence. Initially, this response leads to a slowdown in tumor growth. However, the longstanding accumulation of senescent cells (SnCs) in tumors can promote neoplastic progression due to the enrichment of numerous molecules and extracellular vesicles that constitutes the senescence-associated secretory phenotype (SASP). Among other effects, SASP can potentiate or unlock the tumor plasticity and phenotypic transitions, another hallmark of cancer. This review discusses how SnCs can fuel mechanisms that underlie cancer plasticity, like cell differentiation, stemness, reprogramming, and epithelial-mesenchymal transition. We also discuss the main molecular mechanisms that make SnCs resistant to cell death, and potential strategies to target SnCs. At the end, we raise open questions and clinically relevant perspectives in the field.
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Affiliation(s)
- Andrew Oliveira Silva
- Faculdade Estácio, Porto Alegre, RS, Brazil
- Centro de Pesquisa Experimental, Hospital de Clínicas de Porto
Alegre, Porto Alegre, RS, Brazil
| | - Thais Cardoso Bitencourt
- Centro de Pesquisa Experimental, Hospital de Clínicas de Porto
Alegre, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação
em Biologia Celular e Molecular, Porto Alegre, RS, Brazil
| | - Jose Eduardo Vargas
- Universidade Federal do Paraná, Departamento de Biologia Celular,
Curitiba, PR, Brazil
| | - Lucas Rosa Fraga
- Centro de Pesquisa Experimental, Hospital de Clínicas de Porto
Alegre, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul, Departamento de Ciências
Morfológicas, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação
em Medicina: Ciências Médicas, Porto Alegre, RS, Brazil
| | - Eduardo Filippi-Chiela
- Centro de Pesquisa Experimental, Hospital de Clínicas de Porto
Alegre, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul, Departamento de Ciências
Morfológicas, Porto Alegre, RS, Brazil
- Universidade Federal do Rio Grande do Sul, Centro de Biotecnologia,
Porto Alegre, RS, Brazil
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Chang X, Li Z, Tian M, Deng Z, Zhu L, Li G. Rotenone activates the LKB1-AMPK-ULK1 signaling pathway to induce autophagy and apoptosis in rat thoracic aortic endothelial cells. BMC Pharmacol Toxicol 2024; 25:33. [PMID: 38783387 PMCID: PMC11118107 DOI: 10.1186/s40360-024-00755-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 05/16/2024] [Indexed: 05/25/2024] Open
Abstract
BACKGROUND The specific mechanism by which rotenone impacts thoracic aortic autophagy and apoptosis is unknown. We aimed to investigate the regulatory effects of rotenone on autophagy and apoptosis in rat thoracic aortic endothelial cells (RTAEC) via activation of the LKB1-AMPK-ULK1 signaling pathway and to elucidate the molecular mechanisms of rotenone on autophagy and apoptosis in vascular endothelial cells. METHODS In vivo, 60 male SD rats were randomly selected and divided into 5 groups: control (Con), DMSO, 1, 2, and 4 mg/kg groups, respectively. After 28 days of treatment, histopathological and ultrastructural changes in each group were observed using HE and transmission electron microscopy; Autophagy, apoptosis, and LKB1-AMPK-ULK1 pathway-related proteins were detected by Western blot; Apoptosis levels in the thoracic aorta were detected by TUNEL. In vitro, RTAEC were cultured and divided into control (Con), DMSO, 20, 100, 500, and 1000 nM groups. After 24 h of intervention, autophagy, apoptosis, and LKB1-AMPK-ULK1 pathway-related factors were detected by Western blot and qRT-PCR; Flow cytometry to detect apoptosis levels; Autophagy was inhibited with 3-MA and CQ to detect apoptosis levels, and changes in autophagy, apoptosis, and downstream factors were detected by the AMPK inhibitor CC intervention. RESULTS Gavage in SD rats for 28 days, some degree of damage was observed in the thoracic aorta and heart of the rotenone group, as well as the appearance of autophagic vesicles was observed in the thoracic aorta. TUNEL analysis revealed higher apoptosis in the rotenone group's thoracic aorta; RTAEC cultured in vitro, after 24 h of rotenone intervention, showed increased ROS production and significantly decreased ATP production. The flow cytometry data suggested an increase in the number of apoptotic RTAEC. The thoracic aorta and RTAEC in the rotenone group displayed elevated levels of autophagy and apoptosis, and the LKB1-AMPK-ULK1 pathway proteins were activated and expressed at higher levels. Apoptosis and autophagy were both suppressed by the autophagy inhibitors 3-MA and CQ. The AMPK inhibitor CC reduced autophagy and apoptosis in RTAEC and suppressed the production of the AMPK downstream factors ULK1 and P-ULK1. CONCLUSIONS Rotenone may promote autophagy in the thoracic aorta and RTAEC by activating the LKB1-AMPK-ULK1 signaling pathway, thereby inducing apoptosis.
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Affiliation(s)
- Xiaoyu Chang
- School of Public Health, Ningxia Medical University, Yinchuan, 750004, China
| | - Zeyuan Li
- School of Public Health, Ningxia Medical University, Yinchuan, 750004, China
| | - Mi Tian
- School of Public Health, Ningxia Medical University, Yinchuan, 750004, China
| | - Ziwei Deng
- School of Public Health, Ningxia Medical University, Yinchuan, 750004, China
| | - Lingqin Zhu
- School of Public Health, Ningxia Medical University, Yinchuan, 750004, China.
| | - Guanghua Li
- School of Public Health, Ningxia Medical University, Yinchuan, 750004, China.
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004, China.
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He J, Zuo J, Fan X, Li Z. Electro-acupuncture modulated miR-214 expression to prevent chondrocyte apoptosis and reduce pain by targeting BAX and TRPV4 in osteoarthritis rats. Braz J Med Biol Res 2024; 57:e13238. [PMID: 38808885 PMCID: PMC11136484 DOI: 10.1590/1414-431x2024e13238] [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: 01/03/2024] [Accepted: 04/15/2024] [Indexed: 05/30/2024] Open
Abstract
Osteoarthritis (OA) is a highly prevalent joint disorder characterized by progressive degeneration of articular cartilage, subchondral bone remodeling, osteophyte formation, synovial inflammation, and meniscal damage. Although the etiology of OA is multifactorial, pro-inflammatory processes appear to play a key role in disease pathogenesis. Previous studies indicate that electroacupuncture (EA) exerts chondroprotective, anti-inflammatory, and analgesic effects in preclinical models of OA, but the mechanisms underlying these potential therapeutic benefits remain incompletely defined. This study aimed to investigate the effects of EA on OA development in a rat model, as well as to explore associated molecular mechanisms modulated by EA treatment. Forty rats were divided into OA, EA, antagomiR-214, and control groups. Following intra-articular injection of monosodium iodoacetate to induce OA, EA and antagomiR-214 groups received daily EA stimulation at acupoints around the knee joint for 21 days. Functional pain behaviors and chondrocyte apoptosis were assessed as outcome measures. The expression of microRNA-214 (miR-214) and its downstream targets involved in apoptosis and nociception, BAX and TRPV4, were examined. Results demonstrated that EA treatment upregulated miR-214 expression in OA knee cartilage. By suppressing pro-apoptotic BAX and pro-nociceptive TRPV4, this EA-induced miR-214 upregulation ameliorated articular pain and prevented chondrocyte apoptosis. These findings suggested that miR-214 plays a key role mediating EA's therapeutic effects in OA pathophysiology, and represents a promising OA treatment target for modulation by acupuncture.
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Affiliation(s)
- Jia He
- Department of Traditional Chinese Medical Orthopedics, Xi'an Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Jia Zuo
- Department of Acupuncture, Shaanxi Provincial Hospital of Chinese Medicine, Xi'an, Shaanxi, China
| | - Xiaochen Fan
- Department of Traditional Chinese Medical Orthopedics, Xi'an Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Zhe Li
- Department of Traditional Chinese Medical Orthopedics, Xi'an Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Jin X, Song X. Autophagy Dysfunction: The Kernel of Hair Loss? Clin Cosmet Investig Dermatol 2024; 17:1165-1181. [PMID: 38800357 PMCID: PMC11122274 DOI: 10.2147/ccid.s462294] [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: 02/13/2024] [Accepted: 05/04/2024] [Indexed: 05/29/2024]
Abstract
Autophagy is recognized as a crucial regulatory process, instrumental in the removal of senescent, dysfunctional, and damaged cells. Within the autophagic process, lysosomal digestion plays a critical role in the elimination of impaired organelles, thus preserving fundamental cellular metabolic functions and various biological processes. Mitophagy, a targeted autophagic process that specifically focuses on mitochondria, is essential for sustaining cellular health and energy balance. Therefore, a deep comprehension of the operational mechanisms and implications of autophagy and mitophagy is vital for disease prevention and treatment. In this context, we examine the role of autophagy and mitophagy during hair follicle cycles, closely scrutinizing their potential association with hair loss. We also conduct a thorough review of the regulatory mechanisms behind autophagy and mitophagy, highlighting their interaction with hair follicle stem cells and dermal papilla cells. In conclusion, we investigate the potential of manipulating autophagy and mitophagy pathways to develop innovative therapeutic strategies for hair loss.
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Affiliation(s)
- Xiaofan Jin
- Zhejiang University School of Medicine, Department of Dermatology, Hangzhou Third People’s Hospital, Affiliated Hangzhou Dermatology Hospital, Hangzhou, People’s Republic of China
| | - Xiuzu Song
- Department of Dermatology, Hangzhou Third People’s Hospital, Affiliated Hangzhou Dermatology Hospital, Zhejiang University School of Medicine, Hangzhou, People’s Republic of China
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38
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Li F, Xu J, Zhu Y. MiR-6839-5p inhibits cell proliferation, migration and invasion; a possible correlation with the suppressing VEGFA expression in human chondrosarcoma cells. Discov Oncol 2024; 15:175. [PMID: 38762695 PMCID: PMC11102412 DOI: 10.1007/s12672-024-01038-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 05/14/2024] [Indexed: 05/20/2024] Open
Abstract
MicroRNAs play an important role in the proliferation, invasion, and metastasis of malignancy. In previous studies (detailed in our previous paper), the expression of miR-6839-5p was significantly increased in SW1353 cells after 125I seed 6 Gy irradiation, which indicated miR-6839-5p may play a tumor suppression function in chondrosarcoma cells. This study aimed to identify the effects of miR-6839-5p on the human chondrosarcoma cells, and investigate the potential target genes of miR-6839-5p. Firstly, chondrosarcoma cells (SW1353 and CAL78) were transfected with hsa-miR-6839-5p specific mimic. Secondly, Cell viability assay (MTT assay), Colony formation assay, Wound healing assay, Transwell assay, TUNEL staining and Western blotting experiments were performed, and the results proved miR-6839-5p can inhibit chondrosarcoma cells proliferation, migration and invasion. Meanwhile, miR-6839-5p significantly down-regulated apoptosis facilitator Bcl-2 expression, and promoted apoptosis of chondrosarcoma cells. It is reasonable to speculate miR-6839-5p might downregulate Bcl-2 expression to induce apoptosis in SW1353 human chondrosarcoma cells. Lastly, RNA extraction and bioinformatic analysis was performed on SW1353 cells transfected with hsa-miR-6839-5p specific mimic to investigate the potential target genes of miR-6839-5p. A total of 253 differentially expressed mRNA genes (105 up-regulated genes and 148 down-regulated genes) were found, and 23 differentially expressed downregulated genes were identified. Quantitative real-time polymerase chain reaction (qRT-PCR) was conducted to validate the results, which demonstrated the expression of BST2, VEGFA, FPR3 and PPARA was significantly downregulated by miR-6839-5p mimic. Furthermore, miR-6839-5p inhibitor can restore or partially restore the expression value of the above four genes. The analysis results of miRNA target gene prediction database indicated VEGFA was the most likely direct target gene of miR-6839-5p.
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Affiliation(s)
- Fusheng Li
- Department of Orthopaedics, The First Affiliated Hospital of China Medical University, 155 Nan Jing Bei Street, Shenyang, 110001, People's Republic of China
- Department of Orthopaedics Oncology, The People's Hospital of Liaoning Province, Shenyang, 110016, People's Republic of China
| | - Jia Xu
- Department of Medical Microbiology, Key Laboratory of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, Shenyang, 110034, People's Republic of China
| | - Yue Zhu
- Department of Orthopaedics, The First Affiliated Hospital of China Medical University, 155 Nan Jing Bei Street, Shenyang, 110001, People's Republic of China.
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D'Aguanno S, Brignone M, Scalera S, Chiacchiarini M, Di Martile M, Valentini E, De Nicola F, Ricci A, Pelle F, Botti C, Maugeri-Saccà M, Del Bufalo D. Bcl-2 dependent modulation of Hippo pathway in cancer cells. Cell Commun Signal 2024; 22:277. [PMID: 38755629 PMCID: PMC11097437 DOI: 10.1186/s12964-024-01647-1] [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: 01/23/2024] [Accepted: 05/03/2024] [Indexed: 05/18/2024] Open
Abstract
INTRODUCTION Bcl-2 and Bcl-xL are the most studied anti-apoptotic members of Bcl-2 family proteins. We previously characterized both of them, not only for their role in regulating apoptosis and resistance to therapy in cancer cells, but also for their non-canonical functions, mainly including promotion of cancer progression, metastatization, angiogenesis, and involvement in the crosstalk among cancer cells and components of the tumor microenvironment. Our goal was to identify transcriptional signature and novel cellular pathways specifically modulated by Bcl-2. METHODS We performed RNAseq analysis of siRNA-mediated transient knockdown of Bcl-2 or Bcl-xL in human melanoma cells and gene ontology analysis to identify a specific Bcl-2 transcriptional signature. Expression of genes modulated by Bcl-2 and associated to Hippo pathway were validated in human melanoma, breast adenocarcinoma and non-small cell lung cancer cell lines by qRT-PCR. Western blotting analysis were performed to analyse protein expression of upstream regulators of YAP and in relation to different level of Bcl-2 protein. The effects of YAP silencing in Bcl-2 overexpressing cancer cells were evaluated in migration and cell viability assays in relation to different stiffness conditions. In vitro wound healing assays and co-cultures were used to evaluate cancer-specific Bcl-2 ability to activate fibroblasts. RESULTS We demonstrated the Bcl-2-dependent modulation of Hippo Pathway in cancer cell lines from different tumor types by acting on upstream YAP regulators. YAP inhibition abolished the ability of Bcl-2 to increase tumor cell migration and proliferation on high stiffness condition of culture, to stimulate in vitro fibroblasts migration and to induce fibroblasts activation. CONCLUSIONS We discovered that Bcl-2 regulates the Hippo pathway in different tumor types, promoting cell migration, adaptation to higher stiffness culture condition and fibroblast activation. Our data indicate that Bcl-2 inhibitors should be further investigated to counteract cancer-promoting mechanisms.
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Affiliation(s)
- Simona D'Aguanno
- Preclinical Models and New Therapeutic Agents Unit, IRCCS Regina Elena National Cancer Institute, Rome, 00144, Italy.
| | - Matteo Brignone
- Preclinical Models and New Therapeutic Agents Unit, IRCCS Regina Elena National Cancer Institute, Rome, 00144, Italy
| | - Stefano Scalera
- Clinical Trial Center, Biostatistics and Bioinformatics, IRCCS Regina Elena National Cancer Institute, Rome, 00144, Italy
| | - Martina Chiacchiarini
- Preclinical Models and New Therapeutic Agents Unit, IRCCS Regina Elena National Cancer Institute, Rome, 00144, Italy
| | - Marta Di Martile
- Preclinical Models and New Therapeutic Agents Unit, IRCCS Regina Elena National Cancer Institute, Rome, 00144, Italy
| | - Elisabetta Valentini
- Preclinical Models and New Therapeutic Agents Unit, IRCCS Regina Elena National Cancer Institute, Rome, 00144, Italy
| | | | - Alessia Ricci
- Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara, Chieti, 66100, Italy
| | - Fabio Pelle
- Department of Surgery, Division of Breast Surgery, IRCCS Regina Elena National Cancer Institute, Rome, 00144, Italy
| | - Claudio Botti
- Department of Surgery, Division of Breast Surgery, IRCCS Regina Elena National Cancer Institute, Rome, 00144, Italy
| | - Marcello Maugeri-Saccà
- Clinical Trial Center, Biostatistics and Bioinformatics, IRCCS Regina Elena National Cancer Institute, Rome, 00144, Italy
| | - Donatella Del Bufalo
- Preclinical Models and New Therapeutic Agents Unit, IRCCS Regina Elena National Cancer Institute, Rome, 00144, Italy
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Chen J, Li G, He X, Chen X, Chen Z, Liu D, Guo S, Huang T, Lin Y, Lan P, Lian L, He X. ELMO1 ameliorates intestinal epithelial cellular senescence via SIRT1/p65 signaling in inflammatory bowel disease-related fibrosis. Gastroenterol Rep (Oxf) 2024; 12:goae045. [PMID: 38756351 PMCID: PMC11096966 DOI: 10.1093/gastro/goae045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/01/2024] [Accepted: 04/10/2024] [Indexed: 05/18/2024] Open
Abstract
Background Intestinal fibrosis is a common complication in inflammatory bowel disease (IBD), which still lacks of reliable markers and therapeutic options. Cellular senescence has been considered an important mechanism of intestinal fibrosis, but the underlying molecular link remains elusive. Methods Tissues were stained using α-smooth muscle actin (α-SMA), fibronectin, and collagen I as markers of myofibroblastic differentiation. Cellular senescence was confirmed through Lamin B1 staining, senescence-associated β-galactosidase staining, and the expression of senescence-associated secretory phenotype (SASP) factors. We explored the relationship between senescence of intestinal epithelial cells (IECs) and intestinal fibrosis, as well as the molecular mechanism underlying this interaction. The effects of irisin on cellular senescence and fibrosis were determined. Results Here, we identify engulfment and cell motility protein 1 (ELMO1) as a novel biomarker for intestinal cellular senescence and fibrosis. In fibrostrictured tissues from patients and murine models with IBD, significantly high levels of cellular senescence score and factors were noted, which positively correlated with the fibrotic regulator fibronectin. Senescent IECs, not fibroblast itself, released SASP factors to regulate fibroblast activation. Prolonging exposure to severe and persistent injurious stimuli decreased ELMO1 expression, which dampened SIRT1 deacetylase activity, enhanced NF-κB (p65) acetylation, and thereby accelerated cellular senescence. Deletion of ELMO1 led to senescent IECs accumulation and triggered premature fibrosis in murine colitis. Furthermore, irisin, inhibiting the degradation of ELMO1, could downregulate p65 acetylation, reduce IECs senescence, and prevent incipient intestinal fibrosis in murine colitis models. Conclusions This study reveals ELMO1 downregulation is an early symbol of intestinal senescence and fibrosis, and the altered ELMO1-SIRT1-p65 pathway plays an important role in intestinal cellular senescence and IBD-related fibrosis.
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Affiliation(s)
- Junguo Chen
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
- Department of Thoracic Surgery, Thoracic Cancer Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Guanman Li
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
- School of Medicine (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, P. R. China
| | - Xiaowen He
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Xijie Chen
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
- Department of Gastrointestinal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Zexian Chen
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Danling Liu
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Shuang Guo
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Tianze Huang
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Yanyun Lin
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Ping Lan
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Lei Lian
- Department of Gastrointestinal Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
| | - Xiaosheng He
- Department of General Surgery (Colorectal Surgery), The Sixth Affiliated Hospital,Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, P. R. China
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Singh A, Tiwari S, Singh S. Pirh2 modulates the mitochondrial function and cytochrome c-mediated neuronal death during Alzheimer's disease. Cell Death Dis 2024; 15:331. [PMID: 38740775 PMCID: PMC11091053 DOI: 10.1038/s41419-024-06662-1] [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: 08/29/2022] [Revised: 03/26/2024] [Accepted: 04/09/2024] [Indexed: 05/16/2024]
Abstract
Pirh2 is an E3 ubiquitin ligase known to regulate the DNA damage responses through ubiquitylation of various participating signaling factors. DNA damage is a key pathological contributor to Alzheimer's disease (AD), therefore, the role of Pirh2 was investigated in streptozotocin and oligomer Aβ1-42 induced rodent experimental model of AD. Pirh2 protein abundance increased during AD conditions, and transient silencing of Pirh2 inhibited the disease-specific pathological markers like level of p-Tau, βamyloid, acetylcholinesterase activity, and neuronal death. Biochemically, Pirh2 silencing significantly attenuated the oxidative stress, depleted mitochondrial membrane potential, cytochrome c translocation from mitochondria to cytosol, and depleted mitochondrial complex-I activity, and ATP level. Pirh2 silencing also inhibited the altered level of VDAC1, hsp75, hexokinase1, t-Bid, caspase-9, and altered level of apoptotic proteins (Bcl-2, Bax). MALDI-TOF/TOF, co-immunoprecipitation, and UbcH13-linked ubiquitylation assay confirmed the interaction of Pirh2 with cytochrome c and the role of Pirh2 in ubiquitylation of cytochrome c, along with Pirh2-dependent altered proteasome activity. Additionally, Pirh2 silencing further inhibited the translocation of mitochondrion-specific endonuclease G and apoptosis-inducing factors to the nucleus and DNA damage. In conclusion, findings suggested the significant implication of Pirh2 in disease pathogenesis, particularly through impaired mitochondrial function, including biochemical alterations, translocation of cytochrome c, endonuclease G and apoptosis-inducing factor, DNA damage, and neuronal apoptosis.
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Affiliation(s)
- Abhishek Singh
- Division of Toxicology and Experimental Medicine, CSIR-Central Drug Research Institute, Lucknow, 226031, India
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Shubhangini Tiwari
- Division of Toxicology and Experimental Medicine, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Sarika Singh
- Division of Toxicology and Experimental Medicine, CSIR-Central Drug Research Institute, Lucknow, 226031, India.
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Mustakim KR, Eo MY, Seo MH, Yang HC, Kim MK, Myoung H, Kim SM. Ultrastructural and immunohistochemical evaluation of hyperplastic soft tissues surrounding dental implants in fibular jaws. Sci Rep 2024; 14:10717. [PMID: 38730018 PMCID: PMC11087521 DOI: 10.1038/s41598-024-60474-z] [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: 02/09/2024] [Accepted: 04/23/2024] [Indexed: 05/12/2024] Open
Abstract
In reconstructive surgery, complications post-fibula free flap (FFF) reconstruction, notably peri-implant hyperplasia, are significant yet understudied. This study analyzed peri-implant hyperplastic tissue surrounding FFF, alongside peri-implantitis and foreign body granulation (FBG) tissues from patients treated at the Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital. Using light microscopy, pseudoepitheliomatous hyperplasia, anucleate and pyknotic prickle cells, and excessive collagen deposition were observed in FFF hyperplastic tissue. Ultrastructural analyses revealed abnormal structures, including hemidesmosome dilation, bacterial invasion, and endoplasmic reticulum (ER) swelling. In immunohistochemical analysis, unfolded protein-response markers ATF6, PERK, XBP1, inflammatory marker NFκB, necroptosis marker MLKL, apoptosis marker GADD153, autophagy marker LC3, epithelial-mesenchymal transition, and angiogenesis markers were expressed variably in hyperplastic tissue surrounding FFF implants, peri-implantitis, and FBG tissues. NFκB expression was higher in peri-implantitis and FBG tissues compared to hyperplastic tissue surrounding FFF implants. PERK expression exceeded XBP1 significantly in FFF hyperplastic tissue, while expression levels of PERK, XBP1, and ATF6 were not significantly different in peri-implantitis and FBG tissues. These findings provide valuable insights into the interconnected roles of ER stress, necroptosis, apoptosis, and angiogenesis in the pathogenesis of oral pathologies, offering a foundation for innovative strategies in dental implant rehabilitation management and prevention.
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Affiliation(s)
- Kezia Rachellea Mustakim
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Mi Young Eo
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Mi Hyun Seo
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Hyeong-Cheol Yang
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea
| | - Min-Keun Kim
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University, Gangneung, Korea
| | - Hoon Myoung
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Soung Min Kim
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.
- Oral and Maxillofacial Microvascular Reconstruction LAB, Brong Ahafo Regional Hospital, P.O.Box 27, Sunyani, Ghana.
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Rigo A, Vaisitti T, Laudanna C, Terrabuio E, Micillo M, Frusteri C, D'Ulivo B, Merigo F, Sbarbati A, Mellert K, Möeller P, Montresor A, Di Napoli A, Cirombella R, Butturini E, Massaia M, Constantin G, Vinante F, Deaglio S, Ferrarini I. Decreased apoptotic priming and loss of BCL-2 dependence are functional hallmarks of Richter's syndrome. Cell Death Dis 2024; 15:323. [PMID: 38724507 PMCID: PMC11082225 DOI: 10.1038/s41419-024-06707-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 04/20/2024] [Accepted: 04/24/2024] [Indexed: 05/12/2024]
Abstract
Richter's syndrome (RS) is the transformation of chronic lymphocytic leukemia (CLL) into a high-grade B-cell malignancy. Molecular and functional studies have pointed out that CLL cells are close to the apoptotic threshold and dependent on BCL-2 for survival. However, it remains undefined how evasion from apoptosis evolves during disease transformation. Here, we employed functional and static approaches to compare the regulation of mitochondrial apoptosis in CLL and RS. BH3 profiling of 17 CLL and 9 RS samples demonstrated that RS cells had reduced apoptotic priming and lower BCL-2 dependence than CLL cells. While a subset of RS was dependent on alternative anti-apoptotic proteins and was sensitive to specific BH3 mimetics, other RS cases harbored no specific anti-apoptotic addiction. Transcriptomics of paired CLL/RS samples revealed downregulation of pro-apoptotic sensitizers during disease transformation. Albeit expressed, effector and activator members were less likely to colocalize with mitochondria in RS compared to CLL. Electron microscopy highlighted reduced cristae width in RS mitochondria, a condition further promoting apoptosis resistance. Collectively, our data suggest that RS cells evolve multiple mechanisms that lower the apoptotic priming and shift the anti-apoptotic dependencies away from BCL-2, making direct targeting of mitochondrial apoptosis more challenging after disease transformation.
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Affiliation(s)
- Antonella Rigo
- Cancer Research & Cell Biology Laboratory, Section of Innovation Biomedicine, Department of Engineering for Innovation Medicine, University of Verona, Verona, Italy
| | - Tiziana Vaisitti
- Laboratory of Functional Genomics, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Carlo Laudanna
- Section of General Pathology, Department of Medicine, University of Verona, Verona, Italy
| | - Eleonora Terrabuio
- Section of General Pathology, Department of Medicine, University of Verona, Verona, Italy
| | - Matilde Micillo
- Laboratory of Functional Genomics, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Cristina Frusteri
- Cancer Research & Cell Biology Laboratory, Section of Innovation Biomedicine, Department of Engineering for Innovation Medicine, University of Verona, Verona, Italy
| | - Beatrice D'Ulivo
- Section of General Pathology, Department of Medicine, University of Verona, Verona, Italy
| | - Flavia Merigo
- Section of Anatomy and Histology, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Andrea Sbarbati
- Section of Anatomy and Histology, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Kevin Mellert
- Institute of Pathology, University Hospital of Ulm, Ulm, Germany
| | - Peter Möeller
- Institute of Pathology, University Hospital of Ulm, Ulm, Germany
| | - Alessio Montresor
- Section of General Pathology, Department of Medicine, University of Verona, Verona, Italy
| | - Arianna Di Napoli
- Department of Clinical and Molecular Medicine, Sapienza University, Sant'Andrea University Hospital, Rome, Italy
| | - Roberto Cirombella
- Department of Clinical and Molecular Medicine, Sapienza University, Sant'Andrea University Hospital, Rome, Italy
| | - Elena Butturini
- Department of Neuroscience, Biomedicine and Movement Sciences, Biological Chemistry Section, University of Verona, Verona, Italy
| | | | - Gabriela Constantin
- Section of General Pathology, Department of Medicine, University of Verona, Verona, Italy
| | - Fabrizio Vinante
- Cancer Research & Cell Biology Laboratory, Section of Innovation Biomedicine, Department of Engineering for Innovation Medicine, University of Verona, Verona, Italy
| | - Silvia Deaglio
- Laboratory of Functional Genomics, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Isacco Ferrarini
- Cancer Research & Cell Biology Laboratory, Section of Innovation Biomedicine, Department of Engineering for Innovation Medicine, University of Verona, Verona, Italy.
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Ahn CR, Ha IJ, Kim JE, Ahn KS, Park J, Baek SH. Inhibiting AGS Cancer Cell Proliferation through the Combined Application of Aucklandiae Radix and Hyperthermia: Investigating the Roles of Heat Shock Proteins and Reactive Oxygen Species. Antioxidants (Basel) 2024; 13:564. [PMID: 38790669 PMCID: PMC11118127 DOI: 10.3390/antiox13050564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 04/25/2024] [Accepted: 04/29/2024] [Indexed: 05/26/2024] Open
Abstract
Cancer is a major global health concern. To address this, the combination of traditional medicine and newly appreciated therapeutic modalities has been gaining considerable attention. This study explores the combined effects of Aucklandiae Radix (AR) and 43 °C hyperthermia (HT) on human gastric adenocarcinoma (AGS) cell proliferation and apoptosis. We investigated the synergistic effects of AR and HT on cell viability, apoptosis, cell cycle progression, and reactive oxygen species (ROS)-dependent mechanisms. Our findings suggest that the combined treatment led to a notable decrease in AGS cell viability and increased apoptosis. Furthermore, cell cycle arrest at the G2/M phase contributed to the inhibition of cancer cell proliferation. Notably, the roles of heat shock proteins (HSPs) were highlighted, particularly in the context of ROS regulation and the induction of apoptosis. Overexpression of HSPs was observed in cells subjected to HT, whereas their levels were markedly reduced following AR treatment. The suppression of HSPs and the subsequent increase in ROS levels appeared to contribute to the activation of apoptosis, suggesting a potential role for HSPs in the combined therapy's anti-cancer mechanisms. These findings provide valuable insights into the potential of integrating AR and HT in cancer and HSPs.
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Affiliation(s)
- Chae Ryeong Ahn
- College of Korean Medicine, Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyang-si 10326, Republic of Korea
| | - In Jin Ha
- Korean Medicine Clinical Trial Center (K-CTC), Korean Medicine Hospital, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jai-Eun Kim
- College of Korean Medicine, Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyang-si 10326, Republic of Korea
| | - Kwang Seok Ahn
- College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Soeul 02447, Republic of Korea
| | - Jinbong Park
- College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Soeul 02447, Republic of Korea
| | - Seung Ho Baek
- College of Korean Medicine, Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyang-si 10326, Republic of Korea
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Ganie SA, Naik RA, Dar OA, Rather LJ, Assiri MA, Li Q. Design and fabrication of functionalized curdlan-curcumin delivery system to facilitate the therapeutic effects of curcumin on breast cancer. Int J Biol Macromol 2024; 267:131388. [PMID: 38608982 DOI: 10.1016/j.ijbiomac.2024.131388] [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: 12/04/2023] [Revised: 03/23/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024]
Abstract
We developed a facile method for the fabrication of a biodegradable delivery system composed of two blocks: curdlan and curcumin. This was achieved by chemical functionalization of curdlan through tosylation, amination followed by complexation with curcumin. A comprehensive evaluation of structural characterization and component stability showed that cur-cum complex exhibited better anticancer properties with enhanced thermal properties. The cur-cum complex shows pH sensitive sustained release behaviour with higher release at acidic pH and kinetic data of drug release follows the Korsmeyer-Peppas model. The cur-cum complex has ability to block the proliferation of the MCF-7 cell line as revealed by MTT assay which showed increased toxicity of cur-cum complex against these cell lines. The results obtained from western blot analysis demonstrated that the co-administration of cur and cum effectively induced apoptosis in MCF-7 cells. This effect was observed by a considerable upregulation of the Bcl-2/Bax ratio, a decline in mRNA expression of LDHA, level of lactate and LDH activity. The results clearly depict the role of functionalized curdlan as efficient carrier for curcumin delivery with prolonged, sustained release and enhanced bioavailability, thereby improving the overall anticancer activity.
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Affiliation(s)
- Showkat Ali Ganie
- State Key Laboratory of Resource Insects, Chongqing Engineering Research Centre for Biomaterial Fiber and Modern Textile, College of Sericulture, Textile and Biomass Science, Southwest University, 400715 Chongqing, PR China.
| | - Rayees Ahmad Naik
- Department of Zoology, Dr. Harisingh Gour Vishwavidyalaya Sagar, Madhya Pradesh 470003, India
| | - Ovas Ahmad Dar
- College of Pharmaceutical Sciences, Southwest University, 400715 Chongqing, PR China.
| | - Luqman Jameel Rather
- State Key Laboratory of Resource Insects, Chongqing Engineering Research Centre for Biomaterial Fiber and Modern Textile, College of Sericulture, Textile and Biomass Science, Southwest University, 400715 Chongqing, PR China
| | - Mohammed A Assiri
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia.
| | - Qing Li
- State Key Laboratory of Resource Insects, Chongqing Engineering Research Centre for Biomaterial Fiber and Modern Textile, College of Sericulture, Textile and Biomass Science, Southwest University, 400715 Chongqing, PR China.
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Iksen, Witayateeraporn W, Hardianti B, Pongrakhananon V. Comprehensive review of Bcl-2 family proteins in cancer apoptosis: Therapeutic strategies and promising updates of natural bioactive compounds and small molecules. Phytother Res 2024; 38:2249-2275. [PMID: 38415799 DOI: 10.1002/ptr.8157] [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: 10/31/2023] [Revised: 01/04/2024] [Accepted: 01/29/2024] [Indexed: 02/29/2024]
Abstract
Cancer has a considerably higher fatality rate than other diseases globally and is one of the most lethal and profoundly disruptive ailments. The increasing incidence of cancer among humans is one of the greatest challenges in the field of healthcare. A significant factor in the initiation and progression of tumorigenesis is the dysregulation of physiological processes governing cell death, which results in the survival of cancerous cells. B-cell lymphoma 2 (Bcl-2) family members play important roles in several cancer-related processes. Drug research and development have identified various promising natural compounds that demonstrate potent anticancer effects by specifically targeting Bcl-2 family proteins and their associated signaling pathways. This comprehensive review highlights the substantial roles of Bcl-2 family proteins in regulating apoptosis, including the intricate signaling pathways governing the activity of these proteins, the impact of reactive oxygen species, and the crucial involvement of proteasome degradation and the stress response. Furthermore, this review discusses advances in the exploration and potential therapeutic applications of natural compounds and small molecules targeting Bcl-2 family proteins and thus provides substantial scientific information and therapeutic strategies for cancer management.
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Affiliation(s)
- Iksen
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
- Department of Pharmacy, Sekolah Tinggi Ilmu Kesehatan Senior Medan, Medan, Indonesia
| | - Wasita Witayateeraporn
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Besse Hardianti
- Laboratory of Pharmacology and Clinical Pharmacy, Faculty of Health Sciences, Almarisah Madani University, South Sulawesi, Indonesia
| | - Varisa Pongrakhananon
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
- Preclinical Toxicity and Efficacy Assessment of Medicines and Chemicals Research Unit, Chulalongkorn University, Bangkok, Thailand
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Rajana N, Chary PS, Pooja YS, Bhavana V, Singh H, Guru SK, Singh SB, Mehra NK. Quality by design approach-based fabrication and evaluation of self-nanoemulsifying drug delivery system for improved delivery of venetoclax. Drug Deliv Transl Res 2024; 14:1277-1300. [PMID: 37953430 DOI: 10.1007/s13346-023-01462-0] [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] [Accepted: 10/21/2023] [Indexed: 11/14/2023]
Abstract
Breast cancer is reported as one of the most prevalent non-cutaneous malignancies in women. Venetoclax (VEN) is an approved BCl-2 inhibitor for the treatment of chronic myeloid leukemia with very limited oral bioavailability and exhibits an enormous impact on breast cancer. In the current investigation, venetoclax-loaded self-nanoemulsifying drug delivery systems (VEN-SNEDDS) were designed and fabricated to improve the aqueous solubility, permeability, and anticancer efficacy of VEN. Various surface-active parameters of the reconstituted SNEDDS were determined to scrutinize the performance of the selected surfactant mixture. Central composite design (CCD) was used to optimize the VEN-SNEDDS. The globule size of reconstituted VEN-SNEDDS was 71.3 ± 2.8 nm with a polydispersity index of 0.113 ± 0.01. VEN-SNEDDS displayed approximately 3-4 fold, 6-7 fold, and 5-6 fold reduced IC50 as compared to free VEN in MDA-MB-231, MCF-7, and T47 D cells, respectively. VEN-SNEDDS showed greater cellular uptake, apoptosis, reactive oxygen species generation, and higher BAX/BCL2 ratio with decreased caspase 3 and 8 and BCL-2 levels in the MDA-MB-231 cells compared to pure VEN. VEN-SNEDDS exhibited approximately fivefold enhancement in Cmax and an improved oral bioavailability compared to VEN suspension in in vivo pharmacokinetic studies.
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Affiliation(s)
- Naveen Rajana
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Padakanti Sandeep Chary
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Yeruva Sri Pooja
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Valamla Bhavana
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Hoshiyar Singh
- Department of Biological Science, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Santosh Kumar Guru
- Department of Biological Science, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Shashi Bala Singh
- Department of Biological Science, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Neelesh Kumar Mehra
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India.
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Wilson SE. Two-phase mechanism in the treatment of corneal stromal fibrosis with topical losartan. Exp Eye Res 2024; 242:109884. [PMID: 38570181 DOI: 10.1016/j.exer.2024.109884] [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: 02/02/2024] [Revised: 03/12/2024] [Accepted: 03/31/2024] [Indexed: 04/05/2024]
Abstract
Recent studies in rabbits and case reports in humans have demonstrated the efficacy of topical losartan in the treatment of corneal scarring fibrosis after a wide range of injuries, including chemical burns, infections, surgical complications, and some diseases. It is hypothesized that the effect of losartan on the fibrotic corneal stroma occurs through a two-phase process in which losartan first triggers the elimination of myofibroblasts by directing their apoptosis via inhibition of extracellular signal-regulated kinase (ERK)-mediated signal transduction, and possibly through signaling effects on the viability and development of corneal fibroblast and fibrocyte myofibroblast precursor cells. This first step likely occurs within a week or two in most corneas with fibrosis treated with topical losartan, but the medication must be continued for much longer until the epithelial basement membrane (EBM) is fully regenerated or new myofibroblasts will develop from precursor cells. Once the myofibroblasts are eliminated from the fibrotic stroma, corneal fibroblasts can migrate into the fibrotic tissue and reabsorb/reorganize the disordered extracellular matrix (ECM) previously produced by the myofibroblasts. This second stage is longer and more variable in different eyes of rabbits and humans, and accounts for most of the variability in the time it takes for the stromal opacity to be markedly reduced by topical losartan treatment. Eventually, keratocytes reemerge in the previously fibrotic stromal tissue to fine-tune the collagens and other ECM components and maintain the normal structure of the corneal stroma. The efficacy of losartan in the prevention and treatment of corneal fibrosis suggests that it acts as a surrogate for the EBM, by suppressing TGF beta-directed scarring of the wounded corneal stroma, until control over TGF beta action is re-established by a healed EBM, while also supporting regeneration of the EBM by allowing corneal fibroblasts to occupy the subepithelial stroma in the place of myofibroblasts.
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Affiliation(s)
- Steven E Wilson
- Cole Eye Institute, The Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH, USA.
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Yıldırım O, Seçme M, Dodurga Y, Mete GA, Fenkci SM. In Vitro Effects of Boric Acid on Cell Cycle, Apoptosis, and miRNAs in Medullary Thyroid Cancer Cells. Biol Trace Elem Res 2024:10.1007/s12011-024-04188-3. [PMID: 38689139 DOI: 10.1007/s12011-024-04188-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Accepted: 04/16/2024] [Indexed: 05/02/2024]
Abstract
Medullary thyroid cancer (MTC) is a highly aggressive and chemotherapy-resistant cancer originating from the thyroid's parafollicular C cells. Due to its resistance to conventional treatments, alternative therapies such as boric acid have been explored. Boric acid, a boron-based compound, has shown anticarcinogenic effects, positioning it as a potential treatment option for MTC. TT medullary thyroid carcinoma cell line (TT cells) and human thyroid fibroblast (HThF cells) were utilized for the cell culture experiments. Cell viability was assessed using the 2,3-bis(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide (XTT) assay. Total RNA was extracted using Trizol reagent for gene expression and microRNA (miRNA) analysis via reverse transcription-polymerase chain reaction (RT-PCR). The extent of apoptosis induced by boric acid was determined using the terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay. Colony formation assays were conducted to evaluate the impact of boric acid on the colony-forming ability of MTC cells. At 48 h, 50% inhibitory concentration (IC50) of boric acid was found to be 35 μM. Treatment with boric acid resulted in significant modulation of apoptosis-related genes and miRNAs, including increased expression of phorbol-12-myristate-13-acetate-induced protein 1(NOXA), apoptotic protease activating factor 1 (APAF-1), Bcl-2-associated X protein (Bax), caspase-3, and caspase-9. In contrast, the expression of B cell lymphoma 2 (Bcl2), B cell lymphoma- extra-large (Bcl-xl), and microRNA-21 (miR-21), which are linked to the aggressiveness of MTC, was significantly reduced. The TUNEL assay indicated a 14% apoptosis rate, and there was a 67.9% reduction in colony formation, as shown by the colony formation assay. Our study suggests that boric acid may have anticancer activity in MTC by modulating apoptotic pathways. These findings suggest that boric acid could be a potential therapeutic agent for MTC and possibly for other malignancies with similar pathogenic mechanisms.
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Affiliation(s)
- Onurcan Yıldırım
- Department of Internal Medicine, Ege University School of Medicine, Izmir, 35100, Turkey.
| | - Mücahit Seçme
- Department of Medical Biology, Ordu University School of Medicine, Ordu, Turkey
| | - Yavuz Dodurga
- Department of Medical Biology, Pamukkale University School of Medicine, Denizli, Turkey
| | - Gülçin Abban Mete
- Department of Histology and Embriology, Pamukkale University School of Medicine, Denizli, Turkey
| | - Semin Melahat Fenkci
- Department of Endocrinology and Metabolism, Pamukkale University School of Medicine, Denizli, Turkey
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Bijou I, Liu Y, Lu D, Chen J, Sloan S, Alinari L, Lonard DM, O’Malley BW, Wang M, Wang J. Inhibition of SRC-3 as a potential therapeutic strategy for aggressive mantle cell lymphoma. PLoS One 2024; 19:e0289902. [PMID: 38683834 PMCID: PMC11057735 DOI: 10.1371/journal.pone.0289902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 03/28/2024] [Indexed: 05/02/2024] Open
Abstract
Mantle cell lymphoma (MCL) has a poor prognosis and high relapse rates despite current therapies, necessitating novel treatment regimens. Inhibition of SRC-3 show effectiveness in vivo and in vitro in other B cell lymphomas. Additionally, previous studies have shown that SRC-3 is highly expressed in the lymph nodes of B cell non-Hodgkin's lymphoma patients, suggesting SRC-3 may play a role in the progression of B cell lymphoma. This study aimed to investigate novel SRC-3 inhibitors, SI-10 and SI-12, in mantle cell lymphoma. The cytotoxic effects of SI-10 and SI-12 were evaluated in vitro and demonstrated dose-dependent cytotoxicity in a panel of MCL cell lines. The in vivo efficacy of SI-10 was confirmed in two ibrutinib-resistant models: an immunocompetent disseminated A20 mouse model of B-cell lymphoma and a human PDX model of MCL. Notably, SI-10 treatment also resulted in a significant extension of survival in vivo with low toxicity in both ibrutinib-resistant murine models. We have investigated SI-10 as a novel anti-lymphoma compound via the inhibition of SRC-3 activity. These findings indicate that targeting SRC-3 should be investigated in combination with current clinical therapeutics as a novel strategy to expand the therapeutic index and to improve lymphoma outcomes.
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Affiliation(s)
- Imani Bijou
- Department of Biochemistry and Molecular Pharmacology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Yang Liu
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Dong Lu
- Department of Biochemistry and Molecular Pharmacology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Jianwei Chen
- Department of Biochemistry and Molecular Pharmacology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Shelby Sloan
- Division of Hematology, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio, United States of America
| | - Lapo Alinari
- Division of Hematology, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio, United States of America
| | - David M. Lonard
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Bert W. O’Malley
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Michael Wang
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Jin Wang
- Department of Biochemistry and Molecular Pharmacology, Baylor College of Medicine, Houston, Texas, United States of America
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
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