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Parves MR, Solares MJ, Dearnaley WJ, Kelly DF. Elucidating structural variability in p53 conformers using combinatorial refinement strategies and molecular dynamics. Cancer Biol Ther 2024; 25:2290732. [PMID: 38073067 PMCID: PMC10732606 DOI: 10.1080/15384047.2023.2290732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
Low molecular weight proteins and protein assemblies can now be investigated using cryo-electron microscopy (EM) as a complement to traditional structural biology techniques. It is important, however, to not lose sight of the dynamic information inherent in macromolecules that give rise to their exquisite functionality. As computational methods continue to advance the field of biomedical imaging, so must strategies to resolve the minute details of disease-related entities. Here, we employed combinatorial modeling approaches to assess flexible properties among low molecular weight proteins (~100 kDa or less). Through a blend of rigid body refinement and simulated annealing, we determined new hidden conformations for wild type p53 monomer and dimer forms. Structures for both states converged to yield new conformers, each revealing good stereochemistry and dynamic information about the protein. Based on these insights, we identified fluid parts of p53 that complement the stable central core of the protein responsible for engaging DNA. Molecular dynamics simulations corroborated the modeling results and helped pinpoint the more flexible residues in wild type p53. Overall, the new computational methods may be used to shed light on other small protein features in a vast ensemble of structural data that cannot be easily delineated by other algorithms.
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Affiliation(s)
- Md Rimon Parves
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA, USA
- Center for Structural Oncology, Pennsylvania State University, University Park, PA, USA
- Biochemistry, Microbiology, and Molecular Biology Graduate Program, Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, USA
| | - Maria J. Solares
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA, USA
- Center for Structural Oncology, Pennsylvania State University, University Park, PA, USA
- Molecular, Cellular, and Integrative Biosciences Graduate Program, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
| | - William J. Dearnaley
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA, USA
- Center for Structural Oncology, Pennsylvania State University, University Park, PA, USA
| | - Deborah F. Kelly
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA, USA
- Center for Structural Oncology, Pennsylvania State University, University Park, PA, USA
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2
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Romashin D, Rusanov A, Tolstova T, Varshaver A, Netrusov A, Kozhin P, Luzgina N. Loss of mutant p53 in HaCaT keratinocytes promotes cadmium-induced keratin 17 expression and cell death. Biochem Biophys Res Commun 2024; 709:149834. [PMID: 38547608 DOI: 10.1016/j.bbrc.2024.149834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/18/2024] [Accepted: 03/25/2024] [Indexed: 04/13/2024]
Abstract
BACKGROUND Cadmium exposure induces dermatotoxicity and epidermal barrier disruption and leads to the development of various pathologies. HaCaT cells are immortalized human keratinocytes that are widely used as alternatives to primary human keratinocytes, particularly for evaluating cadmium toxicity. HaCaT cells bear two gain-of-function (GOF) mutations in the TP53 gene, which strongly affect p53 function. Mutant forms of p53 are known to correlate with increased resistance to various stimuli, including exposure to cytotoxic substances. In addition, keratin 17 (KRT17) was recently shown to be highly expressed in HaCaT cells in response to genotoxic stress. Moreover, p53 is a direct transcriptional repressor of KRT17. However, the impact of TP53 mutations in HaCaT cells on the regulation of cell death and keratin 17 expression is unclear. In this study, we aimed to evaluate the impact of p53 on the response to Cd-induced cytotoxicity. METHODS AND RESULTS Employing the MTT assay and Annexin V/propidium iodide staining, we demonstrated that knockout of TP53 leads to a decrease in the sensitivity of HaCaT cells to the cytotoxic effects of cadmium. Specifically, HaCaT cells with TP53 knockout (TP53 KO HaCaT) exhibited cell death at a cadmium concentration of 10 μM or higher, whereas wild-type cells displayed cell death at a concentration of 30 μM. Furthermore, apoptotic cells were consistently detected in TP53 KO HaCaT cells upon exposure to low concentrations of cadmium (10 and 20 μM) but not in wild-type cells. Our findings also indicate that cadmium cytotoxicity is mediated by reactive oxygen species (ROS), which were significantly increased only in TP53 knockout cells treated with 30 μM cadmium. An examination of proteomic data revealed that TP53 knockout in HaCaT cells resulted in the upregulation of proteins involved in the regulation of apoptosis, redox systems, and DNA repair. Moreover, RT‒qPCR and immunoblotting showed that cadmium toxicity leads to dose-dependent induction of keratin 17 in p53-deficient cells but not in wild-type cells. CONCLUSIONS The connection between mutant p53 in HaCaT keratinocytes and increased resistance to cadmium toxicity was demonstrated for the first time. Proteomic profiling revealed that TP53 knockout in HaCaT cells led to the activation of apoptosis regulatory circuits, redox systems, and DNA repair. In addition, our data support the involvement of keratin 17 in the regulation of DNA repair and cell death. Apparently, the induction of keratin 17 is p53-independent but may be inhibited by mutant p53.
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Affiliation(s)
- Daniil Romashin
- Institute of Biomedical Chemistry, 10 Pogodinskaya St., Moscow, 119121, Russia
| | - Alexander Rusanov
- Institute of Biomedical Chemistry, 10 Pogodinskaya St., Moscow, 119121, Russia.
| | - Tatiana Tolstova
- Institute of Biomedical Chemistry, 10 Pogodinskaya St., Moscow, 119121, Russia
| | - Alexandra Varshaver
- Institute of Biomedical Chemistry, 10 Pogodinskaya St., Moscow, 119121, Russia
| | - Alexander Netrusov
- Lomonosov Moscow State University, GSP-1, Leninskie Gory, Moscow, 119991, Russia
| | - Peter Kozhin
- Institute of Biomedical Chemistry, 10 Pogodinskaya St., Moscow, 119121, Russia
| | - Nataliya Luzgina
- Institute of Biomedical Chemistry, 10 Pogodinskaya St., Moscow, 119121, Russia
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Nagasaka M, Miyajima C, Inoue Y, Hashiguchi S, Suzuki Y, Morishita D, Aoki H, Toriuchi K, Katayama R, Aoyama M, Hayashi H. ID3 is a novel target gene of p53 and modulates lung cancer cell metastasis. Biochem Biophys Res Commun 2024; 708:149789. [PMID: 38513475 DOI: 10.1016/j.bbrc.2024.149789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 03/12/2024] [Accepted: 03/13/2024] [Indexed: 03/23/2024]
Abstract
The tumor suppressor p53 prevents cancer development by regulating dozens of target genes with diverse biological functions. Although numerous p53 target genes have been identified to date, the dynamics and function of the regulatory network centered on p53 have not yet been fully elucidated. We herein identified inhibitor of DNA-binding/differentiation-3 (ID3) as a direct p53 target gene. p53 bound the distal promoter of ID3 and positively regulated its transcription. ID3 expression was significantly decreased in clinical lung cancer tissues, and was closely associated with overall survival outcomes in these patients. Functionally, ID3 deficiency promoted the metastatic ability of lung cancer cells through its effects on the transcriptional regulation of CDH1. Furthermore, the ectopic expression of ID3 in p53-knockdown cells restored E-cadherin expression. Collectively, the present results demonstrate that ID3 plays a tumor-suppressive role as a downstream effector of p53 and impedes lung cancer cell metastasis by regulating E-cadherin expression.
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Affiliation(s)
- Mai Nagasaka
- Department of Cell Signaling, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - Chiharu Miyajima
- Department of Cell Signaling, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - Yasumichi Inoue
- Department of Cell Signaling, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan.
| | - Sakura Hashiguchi
- Department of Cell Signaling, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - Yuya Suzuki
- Department of Cell Signaling, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - Daisuke Morishita
- Department of Cell Signaling, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - Hiromasa Aoki
- Department of Pathobiology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - Kohki Toriuchi
- Department of Pathobiology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - Ryohei Katayama
- Division of Experimental Chemotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, 135-8550, Japan
| | - Mineyoshi Aoyama
- Department of Pathobiology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - Hidetoshi Hayashi
- Department of Cell Signaling, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan.
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Chen X, Lu T, Zheng Y, Lin Z, Liu C, Yuan D, Yuan C. miR-155-5p promotes hepatic steatosis via PICALM-mediated autophagy in aging hepatocytes. Arch Gerontol Geriatr 2024; 120:105327. [PMID: 38237377 DOI: 10.1016/j.archger.2024.105327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 12/31/2023] [Accepted: 01/08/2024] [Indexed: 03/10/2024]
Abstract
BACKGROUND Hepatic steatosis, a lipid disorder characterized by the accumulation of intrahepatic fat, is more prevalent in the elderly population. This study investigates the role of miR-155-5p in the autophagy dysregulation of aging hepatic steatosis. METHODS We established an aging mouse model in vivo and a hepatocellular senescence model induced by low serum and palmitic acid in vitro. The fluctuations of microRNAs were derived from RNA-seq data and confirmed by qPCR in 4- and 18-month-old mouse liver tissues. Hematoxylin-eosin (H&E) staining observed pathological changes. Markers of senescence, autophagy, and lipolysis genes were analyzed using Western blot and qPCR. Bioinformatics analysis predicted miR-155-5p's target gene PICALM, confirmed by dual luciferase reporter assay and transfection of miR-155-5p mimic/inhibitor into senescent hepatocytes. RESULTS Senescent markers (p21, p16, and p-P53) and miR-155-5p were up-regulated in aging liver tissues and senescent hepatocytes. Bioinformatics analysis identified PICALM as a target gene of miR-155-5p, a finding further supported by dual luciferase reporter assays. Inhibition of miR-155-5p reduced expression of senescent marker genes (p16, p21, p-P53), improved autophagy (evidenced by increased LC3B-II and ATG5, and decreased P62), and enhanced lipolysis (indicated by increased ATGL and p-HSL) in senescent hepatocytes. Oil red O staining confirmed that miR-155-5p inhibition significantly reduced lipid accumulation in these cells. CONCLUSIONS This study suggests a potential new therapeutic approach for age-related hepatic steatosis through the inhibition of miR-155-5p to enhance autophagy.
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Affiliation(s)
- Xiaoling Chen
- Tumor Microenvironment and Immunotherapy Key Laboratory of Hubei province in China, China Three Gorges University, School of Medicine, Yichang, 443002, China; College of Basic Medical Science, China Three Gorges University, Yichang, HuBei, 443002, China
| | - Ting Lu
- Tumor Microenvironment and Immunotherapy Key Laboratory of Hubei province in China, China Three Gorges University, School of Medicine, Yichang, 443002, China; College of Basic Medical Science, China Three Gorges University, Yichang, HuBei, 443002, China
| | - Ying Zheng
- Tumor Microenvironment and Immunotherapy Key Laboratory of Hubei province in China, China Three Gorges University, School of Medicine, Yichang, 443002, China; College of Basic Medical Science, China Three Gorges University, Yichang, HuBei, 443002, China
| | - Zhiyong Lin
- Tumor Microenvironment and Immunotherapy Key Laboratory of Hubei province in China, China Three Gorges University, School of Medicine, Yichang, 443002, China; College of Basic Medical Science, China Three Gorges University, Yichang, HuBei, 443002, China
| | - Chaoqi Liu
- Tumor Microenvironment and Immunotherapy Key Laboratory of Hubei province in China, China Three Gorges University, School of Medicine, Yichang, 443002, China; College of Basic Medical Science, China Three Gorges University, Yichang, HuBei, 443002, China.
| | - Ding Yuan
- College of Medicine and Health Science, China Three Gorges University, Yichang, HuBei, 443002, China.
| | - Chengfu Yuan
- College of Basic Medical Science, China Three Gorges University, Yichang, HuBei, 443002, China; Third Grade Pharmacological Laboratory on Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, China Three Gorges University, School of Medicine, Yichang, 443002, China.
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5
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Naik L, Patel S, Kumar A, Ghosh A, Mishra A, Das M, Nayak DK, Saha S, Mishra A, Singh R, Behura A, Dhiman R. 4-(Benzyloxy)phenol-induced p53 exhibits antimycobacterial response triggering phagosome-lysosome fusion through ROS-dependent intracellular Ca 2+ pathway in THP-1 cells. Microbiol Res 2024; 282:127664. [PMID: 38422860 DOI: 10.1016/j.micres.2024.127664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 02/19/2024] [Accepted: 02/20/2024] [Indexed: 03/02/2024]
Abstract
Drug-resistant tuberculosis (TB) outbreak has emerged as a global public health crisis. Therefore, new and innovative therapeutic options like host-directed therapies (HDTs) through novel modulators are urgently required to overcome the challenges associated with TB. In the present study, we have investigated the anti-mycobacterial effect of 4-(Benzyloxy)phenol. Cell-viability assay asserted that 50 μM of 4-(Benzyloxy)phenol was not cytotoxic to phorbol 12-myristate 13-acetate (PMA) differentiated THP-1 (dTHP-1) cells. It was observed that 4-(Benzyloxy)phenol activates p53 expression by hindering its association with KDM1A. Increased ROS, intracellular Ca2+ and phagosome-lysosome fusion, were also observed upon 4-(Benzyloxy)phenol treatment. 4-(Benzyloxy)phenol mediated killing of intracellular mycobacteria was abrogated in the presence of specific inhibitors of ROS, Ca2+ and phagosome-lysosome fusion like NAC, BAPTA-AM, and W7, respectively. We further demonstrate that 4-(Benzyloxy)phenol mediated enhanced ROS production is mediated by acetylation of p53. Blocking of p53 acetylation by Pifithrin-α (PFT- α) enhanced intracellular mycobacterial growth by blocking the mycobactericidal effect of 4-(Benzyloxy)phenol. Altogether, the results showed that 4-(Benzyloxy)phenol executed its anti-mycobacterial effect by modulating p53-mediated ROS production to regulate phagosome-lysosome fusion through Ca2+ production.
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Affiliation(s)
- Lincoln Naik
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Salina Patel
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Ashish Kumar
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Abhirupa Ghosh
- Divison of Bioinformatics, Bose Institute Kolkata, West Bengal 700054, India
| | - Abtar Mishra
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Mousumi Das
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Dev Kiran Nayak
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Sudipto Saha
- Divison of Bioinformatics, Bose Institute Kolkata, West Bengal 700054, India
| | - Amit Mishra
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Rajasthan 342011, India
| | - Ramandeep Singh
- Tuberculosis Research Laboratory, Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad-Gurugram Expressway, 3rd Milestone, PO Box # 4, Faridabad, Haryana 121001, India
| | - Assirbad Behura
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India.
| | - Rohan Dhiman
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India.
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6
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Amici DR, Alhayek S, Klein AT, Wang YZ, Wilen AP, Song W, Zhu P, Thakkar A, King MA, Steffeck AW, Alasady MJ, Peek C, Savas JN, Mendillo ML. Tight regulation of a nuclear HAPSTR1-HUWE1 pathway essential for mammalian life. Life Sci Alliance 2024; 7:e202302370. [PMID: 38453366 PMCID: PMC10921065 DOI: 10.26508/lsa.202302370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 03/09/2024] Open
Abstract
The recently discovered HAPSTR1 protein broadly oversees cellular stress responses. This function requires HUWE1, a ubiquitin ligase that paradoxically marks HAPSTR1 for degradation, but much about this pathway remains unclear. Here, leveraging multiplexed proteomics, we find that HAPSTR1 enables nuclear localization of HUWE1 with implications for nuclear protein quality control. We show that HAPSTR1 is tightly regulated and identify ubiquitin ligase TRIP12 and deubiquitinase USP7 as upstream regulators titrating HAPSTR1 stability. Finally, we generate conditional Hapstr1 knockout mice, finding that Hapstr1-null mice are perinatal lethal, adult mice depleted of Hapstr1 have reduced fitness, and primary cells explanted from Hapstr1-null animals falter in culture coincident with HUWE1 mislocalization and broadly remodeled signaling. Notably, although HAPSTR1 potently suppresses p53, we find that Hapstr1 is essential for life even in mice lacking p53. Altogether, we identify novel components and functional insights into the conserved HAPSTR1-HUWE1 pathway and demonstrate its requirement for mammalian life.
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Affiliation(s)
- David R Amici
- https://ror.org/000e0be47 Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Medical Scientist Training Program, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Sammy Alhayek
- https://ror.org/000e0be47 Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Austin T Klein
- https://ror.org/000e0be47 Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Yi-Zhi Wang
- https://ror.org/000e0be47 Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Anika P Wilen
- https://ror.org/000e0be47 Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Weimin Song
- https://ror.org/000e0be47 Comprehensive Metabolic Core, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Pei Zhu
- https://ror.org/000e0be47 Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Department of Medicine, Division of Endocrinology, Metabolism, and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Abhishek Thakkar
- https://ror.org/000e0be47 Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Department of Medicine, Division of Endocrinology, Metabolism, and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - McKenzi A King
- https://ror.org/000e0be47 Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Adam Wt Steffeck
- https://ror.org/000e0be47 Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Department of Medicine, Division of Endocrinology, Metabolism, and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Milad J Alasady
- https://ror.org/000e0be47 Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Medical Scientist Training Program, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Clara Peek
- https://ror.org/000e0be47 Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Department of Medicine, Division of Endocrinology, Metabolism, and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Jeffrey N Savas
- https://ror.org/000e0be47 Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Marc L Mendillo
- https://ror.org/000e0be47 Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Simpson Querrey Center for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- https://ror.org/000e0be47 Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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7
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Xu Y, Zhou Y, Yi X, Nie X. LRP8 promotes tumorigenesis in ovarian cancer through inhibiting p53 signaling. Cell Biol Int 2024; 48:626-637. [PMID: 38263609 DOI: 10.1002/cbin.12133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 12/13/2023] [Accepted: 01/05/2024] [Indexed: 01/25/2024]
Abstract
Ovarian cancer (OC) is the most lethal gynecological malignancy with a high mortality rate. Low-density lipoprotein (LDL) receptor-related protein 8 (LRP8) is a cell membrane receptor belonging LDL receptor family and is involved in several tumor progressions. However, there is limited understanding of how LRP8 mediates OC development. LRP8 expression level was identified in human OC tissues and cells using immunohistochemical staining and quantitative polymerase chain reaction assays, respectively. Functions of LRP8 in OC progression were evaluated by Celigo cell counting, wound healing, transwell and flow cytometry assays, and the xenograft models. The human phospho-kinase array analysis was used for screening potential signaling involved in OC development. We observed that LRP8 was overexpressed in OC tissues, and high expression of LRP8 was associated with poor prognosis of OC patients. Functionally, LRP8 knockdown remarkably reduced proliferation and migration of OC cells, and induced apoptosis and S phase cycle arrest. LRP8 deficiency attenuated in vivo tumor growth of OC cells. Moreover, the addition of p53 inhibitor partially reversed the effects of LRP8 knockdown on OC cell proliferation and apoptosis, indicating the involvement of p53 signaling in LRP8-mediated OC progression. This study confirmed that LRP8/p53 axis contributed to OC progression, which might serve as a novel potential therapeutic target for OC patients.
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Affiliation(s)
- Yan Xu
- Department of Obstetrics and Gynecology, Shenyang Women's and Children's Hospital, Shenyang, China
| | - Yang Zhou
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xiling Yi
- Department of Obstetrics and Gynecology, Shenyang Women's and Children's Hospital, Shenyang, China
| | - Xiaocui Nie
- Department of Obstetrics and Gynecology, Shenyang Women's and Children's Hospital, Shenyang, China
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8
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Fang YY, Gan CL, Peng JC, Xie YH, Song HX, Mo YQ, Ou SY, Aschner M, Jiang YM. Effects of Manganese and Iron, Alone or in Combination, on Apoptosis in BV2 Cells. Biol Trace Elem Res 2024; 202:2241-2252. [PMID: 37500820 DOI: 10.1007/s12011-023-03792-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 07/21/2023] [Indexed: 07/29/2023]
Abstract
The aim of study was to address the effects of manganese and iron, alone and in combination, on apoptosis of BV2 microglia cells, and to determine if combined exposure to these metals augments their individual toxicity. We used a murine microglial BV2 cell line. Cell cytotoxicity was analyzed by propidium iodide (PI) exclusion assay. Cell ROS production was analyzed by 2', 7'-dichlorofluorescin diacetate (DCFH-DA) probe staining. Pro-inflammatory cytokine production was monitored by ELISA. Cell apoptosis was analyzed by PE Annexin V/7-AAD staining. Mitochondrial membrane integrity was analyzed by flow cytometry. We used immunoblotting to analyze the effect of manganese, iron alone, or their combined exposure on the activation of caspase9, P53, Bax, and Bcl2 apoptosis signaling pathways. Caspase3 activity was determined using a Colorimetric. Manganese, iron, and their combined exposure for 24 h induced the activation of BV2 microglia cells and increased ROS production and the expression of the inflammatory cytokines, IL-1β and TNF-α. And we also found that the apoptosis rate increased, mitochondrial membrane potential decreased, apoptosis-related proteins caspase9, P53, Bax, and Bcl2 expression increased, and caspase3 activity increased. Furthermore, we found that combined manganese-iron cytotoxicity was lower than that induced by manganese exposure alone. Manganese, iron alone, or their combination exposure can induce apoptosis in glial cells. Iron can reduce the toxicity of manganese, and there is an antagonistic effect between manganese and iron.
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Affiliation(s)
- Yuan-Yuan Fang
- Department of Toxicology, School of Public Health, Guangxi Medical University, 22 Shuang-Yong Rd., Nanning, 530021, Guangxi, China
- Key Laboratory of Prevention and Control of Highly Prevalent Diseases in Guangxi Colleges and Universities, Medical University of Guangxi, Nanning, 530021, China
| | - Cui-Liu Gan
- Department of Toxicology, School of Public Health, Guangxi Medical University, 22 Shuang-Yong Rd., Nanning, 530021, Guangxi, China
- Key Laboratory of Prevention and Control of Highly Prevalent Diseases in Guangxi Colleges and Universities, Medical University of Guangxi, Nanning, 530021, China
| | - Jian-Chao Peng
- Department of Toxicology, School of Public Health, Guangxi Medical University, 22 Shuang-Yong Rd., Nanning, 530021, Guangxi, China
- Key Laboratory of Prevention and Control of Highly Prevalent Diseases in Guangxi Colleges and Universities, Medical University of Guangxi, Nanning, 530021, China
| | - Yu-Han Xie
- Department of Toxicology, School of Public Health, Guangxi Medical University, 22 Shuang-Yong Rd., Nanning, 530021, Guangxi, China
- Key Laboratory of Prevention and Control of Highly Prevalent Diseases in Guangxi Colleges and Universities, Medical University of Guangxi, Nanning, 530021, China
| | - Han-Xiao Song
- Department of Toxicology, School of Public Health, Guangxi Medical University, 22 Shuang-Yong Rd., Nanning, 530021, Guangxi, China
- Key Laboratory of Prevention and Control of Highly Prevalent Diseases in Guangxi Colleges and Universities, Medical University of Guangxi, Nanning, 530021, China
| | - Ya-Qi Mo
- Department of Toxicology, School of Public Health, Guangxi Medical University, 22 Shuang-Yong Rd., Nanning, 530021, Guangxi, China
- Key Laboratory of Prevention and Control of Highly Prevalent Diseases in Guangxi Colleges and Universities, Medical University of Guangxi, Nanning, 530021, China
| | - Shi-Yan Ou
- Department of Toxicology, School of Public Health, Guangxi Medical University, 22 Shuang-Yong Rd., Nanning, 530021, Guangxi, China
- Key Laboratory of Prevention and Control of Highly Prevalent Diseases in Guangxi Colleges and Universities, Medical University of Guangxi, Nanning, 530021, China
| | - Michael Aschner
- Department of Molecular Pharmacology at Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - Yue-Ming Jiang
- Department of Toxicology, School of Public Health, Guangxi Medical University, 22 Shuang-Yong Rd., Nanning, 530021, Guangxi, China.
- Key Laboratory of Prevention and Control of Highly Prevalent Diseases in Guangxi Colleges and Universities, Medical University of Guangxi, Nanning, 530021, China.
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9
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Chauhan S, Jaiswal S, Jakhmola V, Singh B, Bhattacharya S, Garg M, Sengupta S. Potential role of p53 deregulation in modulating immune responses in human malignancies: A paradigm to develop immunotherapy. Cancer Lett 2024; 588:216766. [PMID: 38408603 PMCID: PMC7615729 DOI: 10.1016/j.canlet.2024.216766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/22/2024] [Accepted: 02/22/2024] [Indexed: 02/28/2024]
Abstract
The crucial role played by the oncogenic expression of TP53, stemming from mutation or amyloid formation, in various human malignancies has been extensively studied over the past two decades. Interestingly, the potential role of TP53 as a crucial player in modulating immune responses has provided new insight into the field of cancer biology. The loss of p53's transcriptional functions and/or the acquisition of tumorigenic properties can efficiently modulate the recruitment and functions of myeloid and lymphoid cells, ultimately leading to the evasion of immune responses in human tumors. Consequently, the oncogenic nature of the tumor suppressor p53 can dynamically alter the function of immune cells, providing support for tumor progression and metastasis. This review comprehensively explores the dual role of p53 as both the guardian of the genome and an oncogenic driver, especially in the context of regulation of autophagy, apoptosis, the tumor microenvironment, immune cells, innate immunity, and adaptive immune responses. Additionally, the focus of this review centers on how p53 status in the immune response can be harnessed for the development of tailored therapeutic strategies and their potential application in immunotherapy against human malignancies.
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Affiliation(s)
- Shivi Chauhan
- Amity Institute of Molecular Medicine and Stem Cell Research (AIMMSCR), Amity University Uttar Pradesh, Sector-125, Noda, 201313, India
| | - Shivani Jaiswal
- Amity Institute of Molecular Medicine and Stem Cell Research (AIMMSCR), Amity University Uttar Pradesh, Sector-125, Noda, 201313, India
| | - Vibhuti Jakhmola
- Amity Institute of Molecular Medicine and Stem Cell Research (AIMMSCR), Amity University Uttar Pradesh, Sector-125, Noda, 201313, India
| | - Bhavana Singh
- Amity Institute of Molecular Medicine and Stem Cell Research (AIMMSCR), Amity University Uttar Pradesh, Sector-125, Noda, 201313, India
| | - Sujata Bhattacharya
- Amity Institute of Molecular Medicine and Stem Cell Research (AIMMSCR), Amity University Uttar Pradesh, Sector-125, Noda, 201313, India
| | - Manoj Garg
- Amity Institute of Molecular Medicine and Stem Cell Research (AIMMSCR), Amity University Uttar Pradesh, Sector-125, Noda, 201313, India.
| | - Shinjinee Sengupta
- Amity Institute of Molecular Medicine and Stem Cell Research (AIMMSCR), Amity University Uttar Pradesh, Sector-125, Noda, 201313, India.
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10
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Sang PB, Jaiswal RK, Lyu X, Chai W. Human CST complex restricts excessive PrimPol repriming upon UV induced replication stress by suppressing p21. Nucleic Acids Res 2024; 52:3778-3793. [PMID: 38348929 DOI: 10.1093/nar/gkae078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 01/18/2024] [Accepted: 01/26/2024] [Indexed: 04/25/2024] Open
Abstract
DNA replication stress, caused by various endogenous and exogenous agents, halt or stall DNA replication progression. Cells have developed diverse mechanisms to tolerate and overcome replication stress, enabling them to continue replication. One effective strategy to overcome stalled replication involves skipping the DNA lesion using a specialized polymerase known as PrimPol, which reinitiates DNA synthesis downstream of the damage. However, the mechanism regulating PrimPol repriming is largely unclear. In this study, we observe that knockdown of STN1 or CTC1, components of the CTC1/STN1/TEN1 complex, leads to enhanced replication progression following UV exposure. We find that such increased replication is dependent on PrimPol, and PrimPol recruitment to stalled forks increases upon CST depletion. Moreover, we find that p21 is upregulated in STN1-depleted cells in a p53-independent manner, and p21 depletion restores normal replication rates caused by STN1 deficiency. We identify that p21 interacts with PrimPol, and STN1 depletion stimulates p21-PrimPol interaction and facilitates PrimPol recruitment to stalled forks. Our findings reveal a previously undescribed interplay between CST, PrimPol and p21 in promoting repriming in response to stalled replication, and shed light on the regulation of PrimPol repriming at stalled forks.
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Affiliation(s)
- Pau Biak Sang
- Department of Cancer Biology, Cardinal Bernardin Cancer Center, Loyola University Chicago Stritch School of Medicine, Maywood, IL, USA
- Department of Microbiology, University of Delhi South Campus, New Delhi, India
| | - Rishi K Jaiswal
- Department of Cancer Biology, Cardinal Bernardin Cancer Center, Loyola University Chicago Stritch School of Medicine, Maywood, IL, USA
- Center for Genetic Diseases, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, IL, USA
| | - Xinxing Lyu
- Department of Cancer Biology, Cardinal Bernardin Cancer Center, Loyola University Chicago Stritch School of Medicine, Maywood, IL, USA
| | - Weihang Chai
- Department of Cancer Biology, Cardinal Bernardin Cancer Center, Loyola University Chicago Stritch School of Medicine, Maywood, IL, USA
- Center for Genetic Diseases, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, IL, USA
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11
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Wang Y, Wang R, Zhao Y, Cao S, Li C, Wu Y, Ma L, Liu Y, Yao Y, Jiao Y, Chen Y, Liu S, Zhang K, Wei M, Yang C, Yang G. Discovery of Selective and Potent ATR Degrader for Exploration its Kinase-Independent Functions in Acute Myeloid Leukemia Cells. Angew Chem Int Ed Engl 2024; 63:e202318568. [PMID: 38433368 DOI: 10.1002/anie.202318568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/28/2024] [Accepted: 02/29/2024] [Indexed: 03/05/2024]
Abstract
ATR has emerged as a promising target for anti-cancer drug development. Several potent ATR inhibitors are currently undergoing various stages of clinical trials, but none have yet received FDA approval due to unclear regulatory mechanisms. In this study, we discovered a potent and selective ATR degrader. Its kinase-independent regulatory functions in acute myeloid leukemia (AML) cells were elucidated using this proteolysis-targeting chimera (PROTAC) molecule as a probe. The ATR degrader, 8 i, exhibited significantly different cellular phenotypes compared to the ATR kinase inhibitor 1. Mechanistic studies revealed that ATR deletion led to breakdown in the nuclear envelope, causing genome instability and extensive DNA damage. This would increase the expression of p53 and triggered immediately p53-mediated apoptosis signaling pathway, which was earlier and more effective than ATR kinase inhibition. Based on these findings, the in vivo anti-proliferative effects of ATR degrader 8 i were assessed using xenograft models. The degrader significantly inhibited the growth of AML cells in vivo, unlike the ATR inhibitor. These results suggest that the marked anti-AML activity is regulated by the kinase-independent functions of the ATR protein. Consequently, developing potent and selective ATR degraders could be a promising strategy for treating AML.
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Affiliation(s)
- Yubo Wang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, P. R. China
| | - Ruonan Wang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, P. R. China
| | - Yanli Zhao
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, P. R. China
| | - Sheng Cao
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, P. R. China
- College of Food Science and Pharmaceutical Engineering, Zaozhuang University, Zaozhuang, 277160, China
| | - Chen Li
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, P. R. China
| | - Yanjie Wu
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, P. R. China
| | - Lan Ma
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, P. R. China
| | - Ying Liu
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, P. R. China
| | - Yuhong Yao
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, P. R. China
| | - Yue Jiao
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, P. R. China
| | - Yukun Chen
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, P. R. China
| | - Shuangwei Liu
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, P. R. China
| | - Kun Zhang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, P. R. China
| | - Mingming Wei
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, P. R. China
| | - Cheng Yang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, P. R. China
| | - Guang Yang
- The State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, P. R. China
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12
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Mansoure AN, Elshal M, Helal MG. Inhibitory effect of diacerein on diclofenac-induced acute nephrotoxicity in rats via modulating SIRT1/HIF-1α/NF-κB and SIRT1/p53 regulatory axes. Int Immunopharmacol 2024; 131:111776. [PMID: 38471363 DOI: 10.1016/j.intimp.2024.111776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024]
Abstract
The aim of this study is to explore the potential of repurposing the antiarthritic drug diacerein (DCN) against diclofenac (DCF)-induced acute nephrotoxicity in rats. Rats were divided into four groups: Group I (CTRL) served as the negative control; Group II (DCF) served as the positive control and was injected with DCF (50 mg/kg/day) for three consecutive days (fourth-sixth) while being deprived of water starting on day 5; Group III (DCF + DCN50) and Group IV (DCF + DCN100) were orally administered DCN (50 and 100 mg/kg/day, respectively) for six days and injected with DCF, while being deprived of water as described above. Changes in kidney function biomarkers were assessed. Levels of MDA and GSH along with NO content in kidney tissues were measured as indicators of oxidative stress status. Histopathological changes of the renal cortex and medulla were evaluated. Changes in renal NF-κB and SIRT-1 levels were immunohistochemically addressed. Western blotting was used to estimate the relative expressions of HIF-1α, p53, and active caspase-3. Our results showed that DCN inhibited kidney dysfunction and suppressed oxidative stress, which were reflected in improved kidney architecture, including less tubular degeneration and necrosis in the cortex and medulla. Interestingly, DCN reduced renal HIF-1α, p53, and active caspase-3 expression and NF-κB activation while increasing renal SIRT1 expression. In conclusion, for the first time, DCN counteracts acute kidney injury induced by DCF in rats by its anti-oxidative, anti-inflammatory, antinecrotic, and anti-apoptotic effects in a dose-dependent manner, which are mainly via targeting SIRT1/HIF-1α/NF-κB and SIRT1/p53 regulatory axes.
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Affiliation(s)
| | - Mahmoud Elshal
- Dept. of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Manar G Helal
- Dept. of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt.
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13
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Zoltsman G, Dang TL, Kuchersky M, Faust O, Silva MS, Ilani T, Wentink AS, Bukau B, Rosenzweig R. A unique chaperoning mechanism in class A JDPs recognizes and stabilizes mutant p53. Mol Cell 2024; 84:1512-1526.e9. [PMID: 38508184 DOI: 10.1016/j.molcel.2024.02.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 12/14/2023] [Accepted: 02/20/2024] [Indexed: 03/22/2024]
Abstract
J-domain proteins (JDPs) constitute a large family of molecular chaperones that bind a broad spectrum of substrates, targeting them to Hsp70, thus determining the specificity of and activating the entire chaperone functional cycle. The malfunction of JDPs is therefore inextricably linked to myriad human disorders. Here, we uncover a unique mechanism by which chaperones recognize misfolded clients, present in human class A JDPs. Through a newly identified β-hairpin site, these chaperones detect changes in protein dynamics at the initial stages of misfolding, prior to exposure of hydrophobic regions or large structural rearrangements. The JDPs then sequester misfolding-prone proteins into large oligomeric assemblies, protecting them from aggregation. Through this mechanism, class A JDPs bind destabilized p53 mutants, preventing clearance of these oncoproteins by Hsp70-mediated degradation, thus promoting cancer progression. Removal of the β-hairpin abrogates this protective activity while minimally affecting other chaperoning functions. This suggests the class A JDP β-hairpin as a highly specific target for cancer therapeutics.
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Affiliation(s)
- Guy Zoltsman
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot 761000, Israel
| | - Thi Lieu Dang
- Center for Molecular Biology of Heidelberg University (ZMBH) and German Cancer Research Center (DKFZ), DKFZ-ZMBH-Alliance, Im Neuenheimer Feld 282, Heidelberg 69120, Germany
| | - Miriam Kuchersky
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot 761000, Israel
| | - Ofrah Faust
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot 761000, Israel
| | - Micael S Silva
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot 761000, Israel
| | - Tal Ilani
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot 761000, Israel
| | - Anne S Wentink
- Center for Molecular Biology of Heidelberg University (ZMBH) and German Cancer Research Center (DKFZ), DKFZ-ZMBH-Alliance, Im Neuenheimer Feld 282, Heidelberg 69120, Germany; Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333CC Leiden, the Netherlands
| | - Bernd Bukau
- Center for Molecular Biology of Heidelberg University (ZMBH) and German Cancer Research Center (DKFZ), DKFZ-ZMBH-Alliance, Im Neuenheimer Feld 282, Heidelberg 69120, Germany.
| | - Rina Rosenzweig
- Department of Chemical and Structural Biology, Weizmann Institute of Science, Rehovot 761000, Israel.
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14
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Chun C, Lee JH, Bothwell M, Nghiem P, Smith AST, Mack DL. Human Motor Neurons Elicit Pathological Hallmarks of ALS and Reveal Potential Biomarkers of the Disease in Response to Prolonged IFNγ Exposure. J Neurosci 2024; 44:e1787232024. [PMID: 38413232 PMCID: PMC11026347 DOI: 10.1523/jneurosci.1787-23.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 01/26/2024] [Accepted: 02/20/2024] [Indexed: 02/29/2024] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a debilitating neurodegenerative disorder marked by progressive motor neuron degeneration and muscle denervation. A recent transcriptomic study integrating a wide range of human ALS samples revealed that the upregulation of p53, a downstream target of inflammatory stress, is commonly detected in familial and sporadic ALS cases by a mechanism linked to a transactive response DNA-binding protein 43 (TDP-43) dysfunction. In this study, we show that prolonged interferon-gamma (IFNγ) treatment of human induced pluripotent stem cell-derived spinal motor neurons results in a severe cytoplasmic aggregation of TDP-43. TDP-43 dysfunction resulting from either IFNγ exposure or an ALS-associated TDP-43 mutation was associated with the activation of the p53 pathway. This was accompanied by the hyperactivation of neuronal firing, followed by the complete loss of their electrophysiological function. Through a comparative single-cell transcriptome analysis, we have identified significant alterations in ALS-associated genes in motor neurons exposed to IFNγ, implicating their direct involvement in ALS pathology. Interestingly, IFNγ was found to induce significant levels of programmed death-ligand 1 (PD-L1) expression in motor neurons without affecting the levels of any other immune checkpoint proteins. This finding suggests a potential role of excessive PD-L1 expression in ALS development, given that PD-L1 was recently reported to impair neuronal firing ability in mice. Our findings suggest that exposing motor neurons to IFNγ could directly derive ALS pathogenesis, even without the presence of the inherent genetic mutation or functional glia component. Furthermore, this study provides a comprehensive list of potential candidate genes for future immunotherapeutic targets with which to treat sporadic forms of ALS, which account for 90% of all reported cases.
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Affiliation(s)
- Changho Chun
- Departments of Bioengineering, University of Washington, Seattle, Washington 98195
- Rehabilitation Medicine, University of Washington, Seattle, Washington 98195
| | - Jung Hyun Lee
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington 98109
- Departments of Dermatology, School of Medicine, University of Washington, Seattle, Washington 98195
| | - Mark Bothwell
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington 98109
- Physiology & Biophysics, University of Washington, Seattle, Washington 98195
| | - Paul Nghiem
- Departments of Dermatology, School of Medicine, University of Washington, Seattle, Washington 98195
- Seattle Cancer Care Alliance, Seattle, Washington 98109
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington 98109
| | - Alec S T Smith
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington 98109
- Physiology & Biophysics, University of Washington, Seattle, Washington 98195
| | - David L Mack
- Departments of Bioengineering, University of Washington, Seattle, Washington 98195
- Rehabilitation Medicine, University of Washington, Seattle, Washington 98195
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington 98109
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15
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Göttig L, Jummer S, Staehler L, Groitl P, Karimi M, Blanchette P, Kosulin K, Branton PE, Schreiner S. The human adenovirus PI3K-Akt activator E4orf1 is targeted by the tumor suppressor p53. J Virol 2024; 98:e0170123. [PMID: 38451084 PMCID: PMC11019960 DOI: 10.1128/jvi.01701-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 01/13/2024] [Indexed: 03/08/2024] Open
Abstract
Human adenoviruses (HAdV) are classified as DNA tumor viruses due to their potential to mediate oncogenic transformation in non-permissive mammalian cells and certain human stem cells. To achieve transformation, the viral early proteins of the E1 and E4 regions must block apoptosis and activate proliferation: the former predominantly through modulating the cellular tumor suppressor p53 and the latter by activating cellular pro-survival and pro-metabolism protein cascades, such as the phosphoinositide 3-kinase (PI3K-Akt) pathway, which is activated by HAdV E4orf1. Focusing on HAdV-C5, we show that E4orf1 is necessary and sufficient to stimulate Akt activation through phosphorylation in H1299 cells, which is not only hindered but repressed during HAdV-C5 infection with a loss of E4orf1 function in p53-positive A549 cells. Contrary to other research, E4orf1 localized not only in the common, cytoplasmic PI3K-Akt-containing compartment, but also in distinct nuclear aggregates. We identified a novel inhibitory mechanism, where p53 selectively targeted E4orf1 to destabilize it, also stalling E4orf1-dependent Akt phosphorylation. Co-IP and immunofluorescence studies showed that p53 and E4orf1 interact, and since p53 is bound by the HAdV-C5 E3 ubiquitin ligase complex, we also identified E4orf1 as a novel factor interacting with E1B-55K and E4orf6 during infection; overexpression of E4orf1 led to less-efficient E3 ubiquitin ligase-mediated proteasomal degradation of p53. We hypothesize that p53 specifically subverts the pro-survival function of E4orf1-mediated PI3K-Akt activation to protect the cell from metabolic hyper-activation or even transformation.IMPORTANCEHuman adenoviruses (HAdV) are nearly ubiquitous pathogens comprising numerous subtypes that infect various tissues and organs. Among many encoded proteins that facilitate viral replication and subversion of host cellular processes, the viral E4orf1 protein has emerged as an intriguing yet under-investigated player in the complex interplay between the virus and its host. Nonetheless, E4orf1 has gained attention as a metabolism activator and oncogenic agent, while recent research is showing that E4orf1 may play a more important role in modulating the cellular pathways such as phosphoinositide 3-kinase-Akt-mTOR. Our study reveals a novel and general impact of E4orf1 on host mechanisms, providing a novel basis for innovative antiviral strategies in future therapeutic settings. Ongoing investigations of the cellular pathways modulated by HAdV are of great interest, particularly since adenovirus-based vectors actually serve as vaccine or gene vectors. HAdV constitute an ideal model system to analyze the underlying molecular principles of virus-induced tumorigenesis.
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Affiliation(s)
- Lilian Göttig
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Simone Jummer
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Luisa Staehler
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Peter Groitl
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Maryam Karimi
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Paola Blanchette
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Goodman Cancer Research Center, McGill University, Montreal, Quebec, Canada
| | - Karin Kosulin
- Molecular Microbiology, Children’s Cancer Research Institute, Vienna, Austria
| | - Philip E. Branton
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Goodman Cancer Research Center, McGill University, Montreal, Quebec, Canada
| | - Sabrina Schreiner
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
- Institute of Virology, Hannover Medical School, Hannover, Germany
- Cluster of Excellence RESIST (Resolving Infection Susceptibility; EXC 2155), Freiburg, Germany
- Institute of Virology, Medical Center—University of Freiburg, Freiburg, Germany
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16
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Li Y, Li G, Zuo C, Wang X, Han F, Jia Y, Shang H, Tian Y. Discovery of ganoderic acid A (GAA) PROTACs as MDM2 protein degraders for the treatment of breast cancer. Eur J Med Chem 2024; 270:116367. [PMID: 38581732 DOI: 10.1016/j.ejmech.2024.116367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 03/19/2024] [Accepted: 03/27/2024] [Indexed: 04/08/2024]
Abstract
Breast cancer is one of the most common female malignant tumors, with triple-negative breast cancer (TNBC) being the most specific, highly invasive, metastatic and associated with a poor prognosis. Our previous study showed that the natural product ganoderic acid A (GAA) has a certain affinity for MDM2. In this study, two series of novel GAA PROTACs C1-C10 and V1-V10 were designed and synthesized for the treatment of breast cancer. The antitumor activity of these compounds was evaluated against four human tumor cell lines (MCF-7, MDA-MB-231, SJSA-1, and HepG2). Among them, V9 and V10 showed stronger anti-proliferative effects against breast cancer cells, and V10 showed the best selectivity in MDA-MB-231 cells (TNBC), which was 5-fold higher than that of the lead compound GAA. Preliminary structure-activity analysis revealed that V-series GAA PROTACs had better effects than C-series, and the introduction of 2O-4O PEG linkers could significantly improve the antitumor activity. Molecular docking, surface plasmon resonance (SPR), cellular thermal shift assay (CETSA), and Western blot researches showed that both V9 and V10 could bind with MDM2, and degrade the protein through the ubiquitin-proteasome system. Molecular dynamics simulation (MD) revealed that V10 is a bifunctional molecule that can bind to von Hippel-Lindau (VHL) at one end and target MDM2 at the other. In addition, V10 promoted the upregulation of p21 in p53-mutant MDA-MB-231 cells, and induced apoptosis via down-regulation of the bcl-2/bax ratio and the expression of cyclin B1. Finally, in vivo experiments showed that, V10 also exhibited good tumor inhibitory activity in xenografted TNBC zebrafish models, with an inhibition rate of 27.2% at 50 μg/mL. In conclusion, our results suggested that V10 has anti-tumor effects on p53-mutant breast cancer in vitro and in vivo, and may be used as a novel lead compound for the future development of TNBC.
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Affiliation(s)
- Yan Li
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China
| | - Guangyu Li
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China
| | - Chenwei Zuo
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China
| | - Xiaolin Wang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China
| | - Fang Han
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China
| | - Yi Jia
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China
| | - Hai Shang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China.
| | - Yu Tian
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China.
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Chamani R, Saberi O, Fathinejad F. An arresten-derived anti-angiogenic peptide triggers apoptotic cell death in endothelial cells. Mol Biol Rep 2024; 51:513. [PMID: 38622345 DOI: 10.1007/s11033-024-09448-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 03/13/2024] [Indexed: 04/17/2024]
Abstract
BACKGROUND In recent years, anti-angiogenic peptides have received considerable attention as candidates for cancer treatment. Arresten is an angiogenesis inhibitor that cleaves from the α1 chain of type IV collagen and stimulates apoptosis in endothelial cells. We have recently indicated that a peptide corresponding to the amino acid 78 to 86 of arresten, so-called Ars, prevented the migration and tube formation of HUVECs and the colon carcinoma growth in mice significantly. The current study aimed to determine whether induction of apoptotic cell death in endothelial cells is one of the biochemical mechanisms of this anti-angiogenic peptide. METHODS AND RESULTS This hypothesis was assessed using the MTT assay, cell cycle analysis, Annexin V-FITC/PI staining, BCL2, CASP8, CASP9, p53, and CDKN2A gene expression studies as well as evaluating apoptosis in tumor tissues by TUNEL assay. Results demonstrated that 40 µM of Ars significantly stimulated 46.2% of early and late apoptosis in HUVECs compared to 13.6% in the untreated cells and did not significantly alter the cell cycle distribution. Moreover, BCL2 and CASP8 were down-regulated, while CASP9 and p53 were up-regulated in endothelial cells. CDKN2A gene expression, the regulator of G1 cell cycle arrest, was not significantly altered. CONCLUSIONS It might be suggested that Ars induced apoptosis in endothelial cells through the mitochondrial pathway and had no effect on the cell cycle. Besides, Ars induced apoptosis significantly in vivo. However, further studies are required to confirm the detailed molecular mechanism of Ars, this peptide has the potential to be optimized for clinical translations.
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Affiliation(s)
| | - Omid Saberi
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
| | - Fatemeh Fathinejad
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
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18
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Qiu M, Cheng L, Xu J, Jin M, Yuan W, Ge Q, Zou K, Chen J, Huang Y, Li J, Zhu L, Xu B, Zhang C, Jin H, Wang P. Liquiritin reduces chondrocyte apoptosis through P53/PUMA signaling pathway to alleviate osteoarthritis. Life Sci 2024; 343:122536. [PMID: 38423170 DOI: 10.1016/j.lfs.2024.122536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/08/2024] [Accepted: 02/23/2024] [Indexed: 03/02/2024]
Abstract
AIMS The main pathological features of osteoarthritis (OA) include the degeneration of articular cartilage and a decrease in matrix synthesis. Chondrocytes, which contribute to matrix synthesis, play a crucial role in the development of OA. Liquiritin, an effective ingredient extracted from Glycyrrhiza uralensis Fisch., has been used for over 1000 years to treat OA. This study aims to investigate the impact of liquiritin on OA and its underlying mechanism. MATERIALS AND METHODS Gait and hot plate tests assessed mouse behavior, while Micro-CT and ABH/OG staining observed joint morphological changes. The TUNEL kit detected chondrocyte apoptosis. Western blot and immunofluorescence techniques determined the expression levels of cartilage metabolism markers COL2 and MMP13, as well as apoptosis markers caspase3, bcl2, P53, and PUMA. KEGG analysis and molecular docking technology were used to verify the relationship between liquiritin and P53. KEY FINDINGS Liquiritin alleviated pain sensitivity and improved gait impairment in OA mice. Additionally, we found that liquiritin could increase COL2 levels and decrease MMP13 levels both in vivo and in vitro. Importantly, liquiritin reduced chondrocyte apoptosis induced by OA, through decreased expression of caspase3 expression and increased expression of bcl2 expression. Molecular docking revealed a strong binding affinity between liquiritin and P53. Both in vivo and in vitro studies demonstrated that liquiritin suppressed the expression of P53 and PUMA in cartilage. SIGNIFICANCE This indicated that liquiritin may alleviate OA progression by inhibiting the P53/PUMA signaling pathway, suggesting that liquiritin is a potential strategy for the treatment of OA.
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Affiliation(s)
- Min Qiu
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China; College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Liangyan Cheng
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China; College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jianbo Xu
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China; The First People's Hospital of Xiaoshan District, Xiaoshan Affiliated Hospital of Wenzhou Medical University, Hangzhou, China
| | - Minwei Jin
- Department of the Orthopedic Surgery, the Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Wenhua Yuan
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China; The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qinwen Ge
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China; The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Kaiao Zou
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China; The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jiali Chen
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China; The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yuliang Huang
- Department of the Orthopedic Surgery, the Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Ju Li
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
| | - Liming Zhu
- The First People's Hospital of Xiaoshan District, Xiaoshan Affiliated Hospital of Wenzhou Medical University, Hangzhou, China
| | - Bing Xu
- Wenzhou Hospital of Integrated Traditional Chinese and Western Medicine, Wenzhou, China
| | - Chunchun Zhang
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China; College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China.
| | - Hongting Jin
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China; The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China.
| | - Pinger Wang
- Institute of Orthopedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China; The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China.
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Lin Z, Liu C, Yan Z, Cheng J, Wang X, Zhou F, Lyu X, Zhang S, Zhang D, Meng X, Zhao Y. Synthesis and biological evaluation of 4-imidazolidinone-containing compounds as potent inhibitors of the MDM2/p53 interaction. Eur J Med Chem 2024; 270:116366. [PMID: 38581730 DOI: 10.1016/j.ejmech.2024.116366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/19/2024] [Accepted: 03/27/2024] [Indexed: 04/08/2024]
Abstract
Inhibition of MDM2/p53 interaction with small-molecule inhibitors stabilizes p53 from MDM2 mediated degradation, which is a promising strategy for the treatment of cancer. In this report, a novel series of 4-imidazolidinone-containing compounds have been synthesized and tested in MDM2/p53 and MDM4/p53 FP binding assays. Upon SAR studies, compounds 2 (TB114) and 22 were identified as the most potent inhibitors of MDM2/p53 but not MDM4/p53 interactions. Both 2 and 22 exhibited strong antiproliferative activities in HCT-116 and MOLM-13 cell lines harboring wild type p53. Mechanistic studies show that 2 and 22 dose-dependently activated p53 and its target genes and induced apoptosis in cells based on the Western blot, qPCR, and flow cytometry assays. In addition, the antiproliferative activities of 2 and 22 were dependent on wild type p53, while they were not toxic to HEK-293 kidney cells. Furthermore, the on-target activities of 2 were general and applicable to other cancer cell lines with wild type p53. These attributes make 2 a good candidate for future optimization to discover a potential treatment of wild-type p53 cancer.
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Affiliation(s)
- Zhitong Lin
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, 210023, China; State Key Laboratory of Drug Research and Small-Molecule Drug Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road Shanghai, 201203, China
| | - Chen Liu
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, 210023, China; State Key Laboratory of Drug Research and Small-Molecule Drug Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road Shanghai, 201203, China
| | - Ziqin Yan
- State Key Laboratory of Drug Research and Small-Molecule Drug Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road Shanghai, 201203, China
| | - Jing Cheng
- State Key Laboratory of Drug Research and Small-Molecule Drug Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road Shanghai, 201203, China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing, 100049, China
| | - Xiancheng Wang
- State Key Laboratory of Drug Research and Small-Molecule Drug Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road Shanghai, 201203, China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing, 100049, China
| | - Feilong Zhou
- State Key Laboratory of Drug Research and Small-Molecule Drug Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road Shanghai, 201203, China
| | - Xilin Lyu
- State Key Laboratory of Drug Research and Small-Molecule Drug Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road Shanghai, 201203, China
| | - Shiyan Zhang
- State Key Laboratory of Drug Research and Small-Molecule Drug Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road Shanghai, 201203, China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing, 100049, China
| | - Daizhou Zhang
- Shandong Provincial Key Laboratory of Biopharmaceuticals, Shandong Academy of Pharmaceutical Sciences, Jinan, 250101, China
| | - Xiangjing Meng
- Shandong Provincial Key Laboratory of Biopharmaceuticals, Shandong Academy of Pharmaceutical Sciences, Jinan, 250101, China.
| | - Yujun Zhao
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, 210023, China; State Key Laboratory of Drug Research and Small-Molecule Drug Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road Shanghai, 201203, China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing, 100049, China; Shandong Provincial Key Laboratory of Biopharmaceuticals, Shandong Academy of Pharmaceutical Sciences, Jinan, 250101, China.
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20
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Yang H, Li S, Li W, Yang Y, Zhang Y, Zhang S, Hao Y, Cao W, Xu F, Wang H, Du G, Wang J. Actinomycin D synergizes with Doxorubicin in triple-negative breast cancer by inducing P53-dependent cell apoptosis. Carcinogenesis 2024; 45:262-273. [PMID: 37997385 DOI: 10.1093/carcin/bgad086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/18/2023] [Accepted: 11/19/2023] [Indexed: 11/25/2023] Open
Abstract
OBJECTIVES There are three major subtypes of breast cancer, ER+, HER2+ and triple-negative breast cancer (TNBC), namely ER-, PR-, HER2-. TNBC is the most aggressive breast cancer with poor prognosis and no target drug up to now. Actinomycin D (ActD) is a bioactive metabolite of marine bacteria that has been reported to have antitumor activity. The aim of study is to investigate whether ActD has a synergetic effect on TNBC with Doxorubicin (Dox), the major chemotherapeutic drug for TNBC, and explore the underlying mechanism. METHODS TNBC cell lines HCC1937, MDA-MB-436 and nude mice were used in the study. Drug synergy determination, LDH assay, MMP assay, Hoechst 33342 staining, Flow cytometry, Flexible docking and CESTA assay were carried out. The expression of proteins associated with apoptosis was checked by Western blot and siRNA experiments were performed to investigate the role of P53 and PUMA induced by drugs. RESULTS There was much higher apoptosis rate of cells in the ActD + Dox group than that in ActD group or Dox group. Expression of MDM2 and BCL-2 was reduced while expression of P53, PUMA and BAX were increased in the groups treated with ActD + Dox or Dox compared to the control group. Furthermore, P53 siRNA or PUMA siRNA tremendously abrogated the cell apoptosis in the groups treated by ActD, Dox and ActD + Dox. Flexible docking and CESTA showed that ActD can bind MDM2. CONCLUSIONS ActD had a synergetic effect on TNBC with Dox via P53-dependent apoptosis and it may be a new choice for treatment of TNBC.
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Affiliation(s)
- Hong Yang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Sha Li
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Wan Li
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Yihui Yang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Yizhi Zhang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Sen Zhang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Yue Hao
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Wanxin Cao
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Fang Xu
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Hongquan Wang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, 300060, Tianjin, China
| | - Guanhua Du
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Jinhua Wang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
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21
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Esposito E, Pozza E, Contado C, Pula W, Bortolini O, Ragno D, Toldo S, Casciano F, Bondi A, Zauli E, Secchiero P, Zauli G, Melloni E. Microfluidic Fabricated Liposomes for Nutlin-3a Ocular Delivery as Potential Candidate for Proliferative Vitreoretinal Diseases Treatment. Int J Nanomedicine 2024; 19:3513-3536. [PMID: 38623081 PMCID: PMC11018138 DOI: 10.2147/ijn.s452134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 03/09/2024] [Indexed: 04/17/2024] Open
Abstract
Purpose Proliferative vitreoretinal diseases (PVDs) represent a heterogeneous group of pathologies characterized by the presence of retinal proliferative membranes, in whose development retinal pigment epithelium (RPE) is deeply involved. As the only effective treatment for PVDs at present is surgery, we aimed to investigate the potential therapeutic activity of Nutlin-3a, a small non-genotoxic inhibitor of the MDM2/p53 interaction, on ARPE-19 cell line and on human RPE primary cells, as in vitro models of RPE and, more importantly, to formulate and evaluate Nutlin-3a loaded liposomes designed for ophthalmic administration. Methods Liposomes were produced using an innovative approach by a microfluidic device under selection of different conditions. Liposome size distribution was evaluated by photon correlation spectroscopy and centrifugal field flow fractionation, while the liposome structure was studied by transmission electron microscopy and Fourier-transform infrared spectroscopy. The Nutlin-3a entrapment capacity was evaluated by ultrafiltration and HPLC. Nutlin-3a biological effectiveness as a solution or loaded in liposomes was evaluated by viability, proliferation, apoptosis and migration assays and by morphological analysis. Results The microfluidic formulative study enabled the selection of liposomes composed of phosphatidylcholine (PC) 5.4 or 8.2 mg/mL and 10% ethanol, characterized by roundish vesicular structures with 150-250 nm mean diameters. Particularly, liposomes based on the lower PC concentration were characterized by higher stability. Nutlin-3a was effectively encapsulated in liposomes and was able to induce a significant reduction of viability and migration in RPE cell models. Conclusion Our results lay the basis for a possible use of liposomes for the ocular delivery of Nutlin-3a.
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Affiliation(s)
- Elisabetta Esposito
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, I-44121, Italy
| | - Elena Pozza
- Department of Translational Medicine, University of Ferrara, Ferrara, I-44121, Italy
| | - Catia Contado
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, I-44121, Italy
| | - Walter Pula
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, I-44121, Italy
| | - Olga Bortolini
- Department of Environmental Sciences and Prevention, University of Ferrara, Ferrara, I-44121, Italy
| | - Daniele Ragno
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, I-44121, Italy
| | - Sofia Toldo
- Department of Environmental Sciences and Prevention, University of Ferrara, Ferrara, I-44121, Italy
| | - Fabio Casciano
- Department of Translational Medicine and LTTA Centre, University of Ferrara, Ferrara, I-44121, Italy
| | - Agnese Bondi
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, I-44121, Italy
| | - Enrico Zauli
- Department of Translational Medicine, University of Ferrara, Ferrara, I-44121, Italy
| | - Paola Secchiero
- Department of Translational Medicine and LTTA Centre, University of Ferrara, Ferrara, I-44121, Italy
| | - Giorgio Zauli
- Department of Environmental Sciences and Prevention, University of Ferrara, Ferrara, I-44121, Italy
| | - Elisabetta Melloni
- Department of Translational Medicine and LTTA Centre, University of Ferrara, Ferrara, I-44121, Italy
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22
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Morral C, Ayyaz A, Kuo HC, Fink M, Verginadis II, Daniel AR, Burner DN, Driver LM, Satow S, Hasapis S, Ghinnagow R, Luo L, Ma Y, Attardi LD, Koumenis C, Minn AJ, Wrana JL, Lee CL, Kirsch DG. p53 promotes revival stem cells in the regenerating intestine after severe radiation injury. Nat Commun 2024; 15:3018. [PMID: 38589357 PMCID: PMC11001929 DOI: 10.1038/s41467-024-47124-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 03/20/2024] [Indexed: 04/10/2024] Open
Abstract
Ionizing radiation induces cell death in the gastrointestinal (GI) epithelium by activating p53. However, p53 also prevents animal lethality caused by radiation-induced acute GI syndrome. Through single-cell RNA-sequencing of the irradiated mouse small intestine, we find that p53 target genes are specifically enriched in regenerating epithelial cells that undergo fetal-like reversion, including revival stem cells (revSCs) that promote animal survival after severe damage of the GI tract. Accordingly, in mice with p53 deleted specifically in the GI epithelium, ionizing radiation fails to induce fetal-like revSCs. Using intestinal organoids, we show that transient p53 expression is required for the induction of revival stem cells and is controlled by an Mdm2-mediated negative feedback loop. Together, our findings reveal that p53 suppresses severe radiation-induced GI injury by promoting fetal-like reprogramming of irradiated intestinal epithelial cells.
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Affiliation(s)
- Clara Morral
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Arshad Ayyaz
- Centre for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
- Department of Biological Sciences, University of Calgary, Calgary, AB, Canada
| | - Hsuan-Cheng Kuo
- Department of Pharmacology and Cancer Biology, Duke University, Durham, NC, USA
| | - Mardi Fink
- Centre for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Ioannis I Verginadis
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Andrea R Daniel
- Department of Radiation Oncology, Duke University, Durham, NC, USA
| | - Danielle N Burner
- Department of Pharmacology and Cancer Biology, Duke University, Durham, NC, USA
| | - Lucy M Driver
- Department of Radiation Oncology, Duke University, Durham, NC, USA
- Department of Pathology, Duke University, Durham, NC, USA
| | - Sloane Satow
- Department of Radiation Oncology, Duke University, Durham, NC, USA
| | | | - Reem Ghinnagow
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Lixia Luo
- Department of Radiation Oncology, Duke University, Durham, NC, USA
| | - Yan Ma
- Department of Radiation Oncology, Duke University, Durham, NC, USA
| | - Laura D Attardi
- Departments of Radiation Oncology and Genetics, Stanford University, Palo Alto, CA, USA
| | - Constantinos Koumenis
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Andy J Minn
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Parker Institute for Cancer Immunotherapy, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Mark Foundation Center for Immunotherapy, Immune Signaling, and Radiation, University of Pennsylvania, Philadelphia, PA, USA
| | - Jeffrey L Wrana
- Centre for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada.
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada.
| | - Chang-Lung Lee
- Department of Radiation Oncology, Duke University, Durham, NC, USA.
- Department of Pathology, Duke University, Durham, NC, USA.
| | - David G Kirsch
- Department of Pharmacology and Cancer Biology, Duke University, Durham, NC, USA.
- Department of Radiation Oncology, Duke University, Durham, NC, USA.
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada.
- Departments of Radiation Oncology and Medical Biophysics, University of Toronto, Toronto, ON, Canada.
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23
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Hwang HJ, Kang D, Kim JR, Choi JH, Ryu JK, Herman AB, Ko YG, Park HJ, Gorospe M, Lee JS. FLRT2 prevents endothelial cell senescence and vascular aging by regulating the ITGB4/mTORC2/p53 signaling pathway. JCI Insight 2024; 9:e172678. [PMID: 38587072 DOI: 10.1172/jci.insight.172678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 02/27/2024] [Indexed: 04/09/2024] Open
Abstract
The roles of fibronectin leucine-rich transmembrane protein 2 (FLRT2) in physiological and pathological processes are not well known. Here, we identify a potentially novel function of FLRT2 in preventing endothelial cell senescence and vascular aging. We found that FLRT2 expression was lower in cultured senescent endothelial cells as well as in aged rat and human vascular tissues. FLRT2 mediated endothelial cell senescence via the mTOR complex 2, AKT, and p53 signaling pathway in human endothelial cells. We uncovered that FLRT2 directly associated with integrin subunit beta 4 (ITGB4) and thereby promoted ITGB4 phosphorylation, while inhibition of ITGB4 substantially mitigated the induction of senescence triggered by FLRT2 depletion. Importantly, FLRT2 silencing in mice promoted vascular aging, and overexpression of FLRT2 rescued a premature vascular aging phenotype. Therefore, we propose that FLRT2 could be targeted therapeutically to prevent senescence-associated vascular aging.
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Affiliation(s)
- Hyun Jung Hwang
- Research Center for Controlling Intercellular Communication and
- Department of Molecular Medicine, College of Medicine, Inha University, Incheon, Korea
| | - Donghee Kang
- Research Center for Controlling Intercellular Communication and
- Department of Molecular Medicine, College of Medicine, Inha University, Incheon, Korea
- Program in Biomedical Science and Engineering, Inha University, Incheon, Korea
| | - Jae-Ryong Kim
- Department of Biochemistry and Molecular Biology and
| | - Joon Hyuk Choi
- Department of Pathology, College of Medicine, Yeungnam University, Daegu, Korea
| | - Ji-Kan Ryu
- Research Center for Controlling Intercellular Communication and
- Department of Urology, College of Medicine, Inha University, Incheon, Korea
| | - Allison B Herman
- Laboratory of Genetics and Genomics, National Institute on Aging, Intramural Research Program, NIH, Baltimore, Maryland, USA
| | - Young-Gyu Ko
- Division of Life Sciences, Korea University, Seoul, Korea
| | - Heon Joo Park
- Research Center for Controlling Intercellular Communication and
- Program in Biomedical Science and Engineering, Inha University, Incheon, Korea
- Department of Microbiology, College of Medicine, Inha University, Incheon, Korea
| | - Myriam Gorospe
- Laboratory of Genetics and Genomics, National Institute on Aging, Intramural Research Program, NIH, Baltimore, Maryland, USA
| | - Jae-Seon Lee
- Research Center for Controlling Intercellular Communication and
- Department of Molecular Medicine, College of Medicine, Inha University, Incheon, Korea
- Program in Biomedical Science and Engineering, Inha University, Incheon, Korea
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Wu Y, Liu P, Chen W, Bai S, Chen S, Chen J, Xu X, Xia J, Wu Y, Lai J, Sun C, Lao Z, Wan X, Wu Z. Microwave hyperthermia enhances radiosensitization by decreasing DNA repair efficiency and inducing oxidative stress in PC3 prostatic adenocarcinoma cells. Int J Hyperthermia 2024; 41:2335201. [PMID: 38583875 DOI: 10.1080/02656736.2024.2335201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024] Open
Abstract
PURPOSE Radiotherapy (RT) is the primary treatment for prostate cancer (PCa); however, the emergence of castration-resistant prostate cancer (CRPC) often leads to treatment failure and cancer-related deaths. In this study, we aimed to explore the use of microwave hyperthermia (MW-HT) to sensitize PCa to RT and investigate the underlying molecular mechanisms. METHODS We developed a dedicated MW-HT heating setup, created an in vitro and in vivo MW-HT + RT treatment model for CRPC. We evaluated PC3 cell proliferation using CCK-8, colony experiments, DAPI staining, comet assay and ROS detection method. We also monitored nude mouse models of PCa during treatment, measured tumor weight, and calculated the tumor inhibition rate. Western blotting was used to detect DNA damage repair protein expression in PC3 cells and transplanted tumors. RESULTS Compared to control, PC3 cell survival and clone formation rates decreased in RT + MW-HT group, demonstrating significant increase in apoptosis, ROS levels, and DNA damage. Lower tumor volumes and weights were observed in treatment groups. Ki-67 expression level was reduced in all treatment groups, with significant decrease in RT + MW-HT groups. The most significant apoptosis induction was confirmed in RT + MW-HT group by TUNEL staining. Protein expression levels of DNA-PKcs, ATM, ATR, and P53/P21 signaling pathways significantly decreased in RT + MW-HT groups. CONCLUSION MW-HT + RT treatment significantly inhibited DNA damage repair by downregulating DNA-PKcs, ATM, ATR, and P53/P21 signaling pathways, leading to increased ROS levels, aggravate DNA damage, apoptosis, and necrosis in PC3 cells, a well-established model of CRPC.
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Affiliation(s)
- Yajun Wu
- Department of TCM Pharmacy, Zhejiang Hospital, Hangzhou, China
| | - Pengyuan Liu
- Department of Oncology, Zhejiang Hospital, Hangzhou, China
- Department of Radiation Oncology, Affiliated Zhejiang Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wendy Chen
- Nanjing Drum Tower Hospital Group Suqian Hospital, Suqian, China
| | - Shiting Bai
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Sisi Chen
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jianglin Chen
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaogang Xu
- Zhejiang Provincial Key Lab of Geriatrics and Geriatrics Institute of Zhejiang Province, Department of Geriatrics, Zhejiang Hospital, Hangzhou, China
| | - Jindan Xia
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yufei Wu
- ACS (International) Singapore, Singapore, Singapore
| | - Jianjun Lai
- Department of Radiation Oncology, Affiliated Zhejiang Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chuan Sun
- Zhejiang Provincial Key Lab of Geriatrics and Geriatrics Institute of Zhejiang Province, Department of Geriatrics, Zhejiang Hospital, Hangzhou, China
| | - Zhenghong Lao
- Department of Oncology, People's Hospital of Deqing County, Huzhou City, China
| | - Xiaoqing Wan
- Department of TCM Pharmacy, Zhejiang Hospital, Hangzhou, China
| | - Zhibing Wu
- Department of Oncology, Zhejiang Hospital, Hangzhou, China
- Department of Radiation Oncology, Affiliated Zhejiang Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Chen H, Zhang G, Peng Y, Wu Y, Han X, Xie L, Xu H, Chen G, Liu B, Xu T, Pang M, Hu C, Fan H, Bi Y, Hua Y, Zhou Y, Luo S. Danggui Shaoyao San protects cyclophosphamide-induced premature ovarian failure by inhibiting apoptosis and oxidative stress through the regulation of the SIRT1/p53 signaling pathway. J Ethnopharmacol 2024; 323:117718. [PMID: 38181933 DOI: 10.1016/j.jep.2024.117718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/28/2023] [Accepted: 01/03/2024] [Indexed: 01/07/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE It has been reported that apoptosis and oxidative stress are related to cyclophosphamide (CYC)-induced premature ovarian failure (POF). Therefore, anti-apoptotic and anti-oxidative stress treatments exhibit therapeutic efficacy in CYC-induced POF. Danggui Shaoyao San (DSS), which has been extensively used to treat gynecologic diseases, is found to inhibit apoptosis and reduce oxidative stress. However, the roles of DSS in regulating apoptosis and oxidative stress during CYC-induced POF, and its associated mechanisms are still unknown. AIM OF THE STUDY This work aimed to investigate the roles and mechanisms of DSS in inhibiting apoptosis and oxidative stress in CYC-induced POF. MATERIALS AND METHODS CYC (75 mg/kg) was intraperitoneally injected in mice to construct the POF mouse model for in vivo study. Thereafter, alterations of body weight, ovary morphology and estrous cycle were monitored to assess the ovarian protective properties of DSS. Serum LH and E2 levels were analyzed by enzyme-linked immunosorbent assay (ELISA). Hematoxylin-eosin (HE) staining was employed for examining ovarian pathological morphology and quantifying follicles in various stages. Meanwhile, TUNEL staining and apoptosis-related proteins were adopted for evaluating apoptosis. Oxidative stress was measured by the levels of ROS, MDA, and 4-HNE. Western blot (WB) assay was performed to detect proteins related to the SIRT1/p53 pathway. KGN cells were used for in vitro experiment. TBHP stimulation was carried out for establishing the oxidative stress-induced apoptosis cell model. Furthermore, MTT assay was employed for evaluating the protection of DSS from TBHP-induced oxidative stress. The anti-apoptotic ability of DSS was evaluated by hoechst/PI staining, JC-1 staining, and apoptosis-related proteins. Additionally, the anti-oxidative stress ability of DSS was measured by detecting the levels of ROS, MDA, and 4-HNE. Proteins related to SIRT1/p53 signaling pathway were also measured using WB and immunofluorescence (IF) staining. Besides, SIRT1 expression was suppressed by EX527 to further investigate the role of SIRT1 in the effects of DSS against apoptosis and oxidative stress. RESULTS In the in vivo experiment, DSS dose-dependently exerted its anti-apoptotic, anti-oxidative stress, and ovarian protective effects. In addition, apoptosis, apoptosis-related protein and oxidative stress levels were inhibited by DSS treatment. DSS treatment up-regulated SIRT1 and down-regulated p53 expression. From in vitro experiment, it was found that DSS treatment protected KGN cells from TBHP-induced oxidative stress injury. Besides, DSS administration suppressed the apoptosis ratio, apoptosis-related protein levels, mitochondrial membrane potential damage, and oxidative stress. SIRT1 suppression by EX527 abolished the anti-apoptotic, anti-oxidative stress, and ovarian protective effects, as discovered from in vivo and in vitro experiments. CONCLUSIONS DSS exerts the anti-apoptotic, anti-oxidative stress, and ovarian protective effects in POF mice, and suppresses the apoptosis and oxidative stress of KGN cells through activating SIRT1 and suppressing p53 pathway.
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Affiliation(s)
- Hongmei Chen
- The First School of Clinical Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Guoyong Zhang
- Department of Traditional Chinese Medicine, Nanfang Hospital (ZengCheng Branch), Southern Medical University, Guangzhou, 510515, China; School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Yan Peng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Yuting Wu
- Binzhou Medical University Hospital, Binzhou, 256603, China
| | - Xin Han
- Department of Traditional Chinese Medicine, Nanfang Hospital (ZengCheng Branch), Southern Medical University, Guangzhou, 510515, China; School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Lingpeng Xie
- Department of Hepatology, Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510315, China
| | - Honglin Xu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China; The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital), Dongguan, 523058, China
| | - Guanghong Chen
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine/Post- Doctoral Research Station, Guangzhou, 510405, China; Guangdong Clinical Research Academy of Chinese Medicine, Guangzhou, 510405, China
| | - Bin Liu
- Department of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510260, China
| | - Tong Xu
- Department of Traditional Chinese Medicine, Nanfang Hospital (ZengCheng Branch), Southern Medical University, Guangzhou, 510515, China; School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Mingjie Pang
- Department of Traditional Chinese Medicine, Nanfang Hospital (ZengCheng Branch), Southern Medical University, Guangzhou, 510515, China; School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Changlei Hu
- Department of Traditional Chinese Medicine, Nanfang Hospital (ZengCheng Branch), Southern Medical University, Guangzhou, 510515, China; School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Huijie Fan
- Department of Traditional Chinese Medicine, Yangjiang People's Hospital, Yangjiang, 529599, China
| | - Yiming Bi
- Department of Acupuncture and Moxibustion, The Affliated TCM Hospital of Guangzhou Medical University, Guangzhou, 510130, China
| | - Yue Hua
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China.
| | - Yingchun Zhou
- Department of Traditional Chinese Medicine, Nanfang Hospital (ZengCheng Branch), Southern Medical University, Guangzhou, 510515, China; School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China.
| | - Songping Luo
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
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Shen L, Fan L, Luo H, Li W, Cao S, Yu S. Cow placenta extract ameliorates d-galactose-induced liver damage by regulating BAX/CASP3 and p53/p21/p16 pathways. J Ethnopharmacol 2024; 323:117685. [PMID: 38171467 DOI: 10.1016/j.jep.2023.117685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/25/2023] [Accepted: 12/27/2023] [Indexed: 01/05/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Placenta is a kind of traditional Chinese medicine, known as "Ziheche", which has the function of tonifying qi and blood, nourishing liver and kidney. Placenta extract (PE) has been used for delaying organismal aging and treating various liver diseases. Cow placenta is a rich natural resource with large mass. Its composition is similar to that of human placenta, but it has not been effectively utilized. However, little is known about the effect of CPE on the liver of aging mice. AIM OF THE STUDY The aim of this study is to explore the protective effect and mechanism of CPE on the liver of d-galactose (D-gal) induced aging mice. MATERIALS AND METHODS Statistical methods were used to calculate mouse body weight and liver index. Hematoxylin-eosin (H&E) and transmission electron microscopy (TEM) were used to detect the morphological structure of the liver. Automatic biochemical analyzer was used to measure serum biochemical indicators. Three special staining methods were used to observe hepatocytes apoptosis, senescence and proliferation respectively. Relative kits were used to detect oxidative, inflammatory, and aging markers in the liver. Finally, real-time quantitative polymerase chain reaction and western-blot were used to detect aging related signaling pathways. RESULTS CPE significantly improved the morphological damage and dysfunction of liver, restored the activities of liver enzymes in serum, and alleviated liver oxidative stress and inflammatory response in D-gal induced aging mice. Furthermore, CPE inhibited hepatocyte apoptosis and senescence, and promoted hepatocyte proliferation by regulating BAX/CASP3 and p53/p21/p16 signaling pathways, ultimately reduced the effects of aging on the liver. CONCLUSION CPE effectively ameliorated the impact of aging on the liver by inhibiting free radical production or scavenging excessive free radicals, and its mechanism is associated to the regulation of apoptosis and proliferation-related factors.
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Affiliation(s)
- Liuhong Shen
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Lei Fan
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
| | - Hao Luo
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
| | - Weiyao Li
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
| | - Suizhong Cao
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
| | - Shumin Yu
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
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Liu S, Wang Y, Yang H, Tan J, Zhang J, Zi D. Pyrroloquinoline quinone promotes human mesenchymal stem cell-derived mitochondria to improve premature ovarian insufficiency in mice through the SIRT1/ATM/p53 pathway. Stem Cell Res Ther 2024; 15:97. [PMID: 38581065 PMCID: PMC10998350 DOI: 10.1186/s13287-024-03705-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 03/20/2024] [Indexed: 04/07/2024] Open
Abstract
BACKGROUND DNA damage and oxidative stress induced by chemotherapy are important factors in the onset of premature ovarian insufficiency (POI). Studies have shown that mitochondria derived from mesenchymal stem cells (MSC-Mito) are beneficial for age-related diseases, but their efficacy alone is limited. Pyrroloquinoline quinone (PQQ) is a potent antioxidant with significant antiaging and fertility enhancement effects. This study aimed to investigate the therapeutic effect of MSC-Mito in combination with PQQ on POI and the underlying mechanisms involved. METHODS A POI animal model was established in C57BL/6J mice by cyclophosphamide and busulfan. The effects of MSC-Mito and PQQ administration on the estrous cycle, ovarian pathological damage, sex hormone secretion, and oxidative stress in mice were evaluated using methods such as vaginal smears and ELISAs. Western blotting and immunohistochemistry were used to assess the expression of SIRT1, PGC-1α, and ATM/p53 pathway proteins in ovarian tissues. A cell model was constructed using KGN cells treated with phosphoramide mustard to investigate DNA damage and apoptosis through comet assays and flow cytometry. SIRT1 siRNA was transfected into KGN cells to further explore the role of the SIRT1/ATM/p53 pathway in combination therapy with MSC-Mito and PQQ for POI. RESULTS The combined treatment of MSC-Mito and PQQ significantly restored ovarian function and antioxidant capacity in mice with POI. This treatment also reduced the loss of follicles at various stages, improving the disrupted estrous cycle. In vitro experiments demonstrated that PQQ facilitated the proliferation of MitoTracker-labelled MSC-Mito, synergistically restoring mitochondrial function and inhibiting oxidative stress in combination with MSC-Mito. Both in vivo and in vitro, the combination of MSC-Mito and PQQ increased mitochondrial biogenesis mediated by SIRT1 and PGC-1α while inhibiting the activation of ATM and p53, consequently reducing DNA damage-mediated cell apoptosis. Furthermore, pretreatment of KGN cells with SIRT1 siRNA reversed nearly all the aforementioned changes induced by the combined treatment. CONCLUSIONS Our research findings indicate that PQQ facilitates MSC-Mito proliferation and, in combination with MSC-Mito, ameliorates chemotherapy-induced POI through the SIRT1/ATM/p53 signaling pathway.
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Affiliation(s)
- Shengjie Liu
- GuiZhou University Medical College, Guiyang, Guizhou Province, 550025, China
| | - Yuanmei Wang
- Department of Gynaecology and Obstetrics, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, 550004, China
| | - Hanlin Yang
- Department of Gynecology, Guizhou Provincial People's Hospital, Guiyang, Guizhou, 550025, China
| | - Jun Tan
- Key Laboratory of Endemic and Ethnic Diseases and Key Laboratory of Molecular Biology, Ministry of Education, Guizhou Medical University, Guiyang, 550004, China
| | - Jingkaiwen Zhang
- Department of Gynaecology and Obstetrics, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, 550004, China
| | - Dan Zi
- Department of Gynecology, Guizhou Provincial People's Hospital, Guiyang, Guizhou, 550025, China.
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Kim MY, Park ER, Cho EH, Park SH, Han CJ, Kim SB, Gu MB, Shin HJ, Lee KH. Depletion of proteasome subunit PSMD1 induces cancer cell death via protein ubiquitination and DNA damage, irrespective of p53 status. Sci Rep 2024; 14:7997. [PMID: 38580756 PMCID: PMC10997673 DOI: 10.1038/s41598-024-58215-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 03/26/2024] [Indexed: 04/07/2024] Open
Abstract
Hepatocellular carcinoma (HCC) is characterized by high incidence and fatality rates worldwide. In our exploration of prognostic factors in HCC, the 26s proteasome subunit, non-ATPase 1 (PSMD1) protein emerged as a significant contributor, demonstrating its potential as a therapeutic target in this aggressive cancer. PSMD1 is a subunit of the 19S regulatory particle in the 26S proteasome complex; the 19S particle controls the deubiquitination of ubiquitinated proteins, which are then degraded by the proteolytic activity of the complex. Proteasome-targeting in cancer therapy has received significant attention because of its practical application as an established anticancer agent. We investigated whether PSMD1 plays a critical role in cancer owing to its prognostic significance. PSMD1 depletion induced cell cycle arrest in G2/M phase, DNA damage and apoptosis of cancer cells, irrespective of the p53 status. PSMD1 depletion-mediated cell death was accompanied by an increase in overall protein ubiquitination. These phenotypes occurred exclusively in cancer cells, with no effects observed in normal cells. These findings indicate that PSMD1 depletion-mediated ubiquitination of cellular proteins induces cell cycle arrest and eventual death in cancer cells, emphasizing PSMD1 as a potential therapeutic target in HCC.
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Affiliation(s)
- Mi-Yeun Kim
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Korea University, 75, Nowon-Ro, Nowon-Gu, Seoul, 01812, South Korea
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, South Korea
| | - Eun-Ran Park
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Korea University, 75, Nowon-Ro, Nowon-Gu, Seoul, 01812, South Korea
| | - Eung-Ho Cho
- Department of Surgery, Division of Radiological and Clinical Research, Korea Institute of Radiological and Medical Sciences, Seoul, South Korea
| | - Sun-Hoo Park
- Department of Pathology, Division of Radiological and Clinical Research, Korea Institute of Radiological and Medical Sciences, Seoul, South Korea
| | - Chul Ju Han
- Department of Internal Medicine, Division of Radiological and Clinical Research, Korea Institute of Radiological and Medical Sciences, Seoul, South Korea
| | - Sang-Bum Kim
- Department of Surgery, Division of Radiological and Clinical Research, Korea Institute of Radiological and Medical Sciences, Seoul, South Korea
| | - Man Bock Gu
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, South Korea
| | - Hyun-Jin Shin
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Korea University, 75, Nowon-Ro, Nowon-Gu, Seoul, 01812, South Korea.
| | - Kee-Ho Lee
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Korea University, 75, Nowon-Ro, Nowon-Gu, Seoul, 01812, South Korea.
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Islam A, Chang YC, Chen XC, Weng CW, Chen CY, Wang CW, Chen MK, Tikhomirov AS, Shchekotikhin AE, Chueh PJ. Water-soluble 4-(dimethylaminomethyl)heliomycin exerts greater antitumor effects than parental heliomycin by targeting the tNOX-SIRT1 axis and apoptosis in oral cancer cells. eLife 2024; 12:RP87873. [PMID: 38567911 PMCID: PMC10990494 DOI: 10.7554/elife.87873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024] Open
Abstract
The antibiotic heliomycin (resistomycin), which is generated from Streptomyces resistomycificus, has multiple activities, including anticancer effects. Heliomycin was first described in the 1960s, but its clinical applications have been hindered by extremely low solubility. A series of 4-aminomethyl derivatives of heliomycin were synthesized to increase water solubility; studies showed that they had anti-proliferative effects, but the drug targets remained unknown. In this study, we conducted cellular thermal shift assays (CETSA) and molecular docking simulations to identify and validate that heliomycin and its water-soluble derivative, 4-(dimethylaminomethyl)heliomycin (designated compound 4-dmH) engaged and targeted with sirtuin-1 (SIRT1) in p53-functional SAS and p53-mutated HSC-3 oral cancer cells. We further addressed the cellular outcome of SIRT1 inhibition by these compounds and found that, in addition to SIRT1, the water-soluble 4-dmH preferentially targeted a tumor-associated NADH oxidase (tNOX, ENOX2). The direct binding of 4-dmH to tNOX decreased the oxidation of NADH to NAD+ which diminished NAD+-dependent SIRT1 deacetylase activity, ultimately inducing apoptosis and significant cytotoxicity in both cell types, as opposed to the parental heliomycin-induced autophagy. We also observed that tNOX and SIRT1 were both upregulated in tumor tissues of oral cancer patients compared to adjacent normal tissues, suggesting their clinical relevance. Finally, the better therapeutic efficacy of 4-dmH was confirmed in tumor-bearing mice, which showed greater tNOX and SIRT1 downregulation and tumor volume reduction when treated with 4-dmH compared to heliomycin. Taken together, our in vitro and in vivo findings suggest that the multifaceted properties of water-soluble 4-dmH enable it to offer superior antitumor value compared to parental heliomycin, and indicated that it functions through targeting the tNOX-NAD+-SIRT1 axis to induce apoptosis in oral cancer cells.
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Affiliation(s)
- Atikul Islam
- Institute of Biomedical Sciences, National Chung Hsing UniversityTaichungTaiwan
| | - Yu-Chun Chang
- Institute of Biomedical Sciences, National Chung Hsing UniversityTaichungTaiwan
| | - Xiao-Chi Chen
- Institute of Biomedical Sciences, National Chung Hsing UniversityTaichungTaiwan
| | - Chia-Wei Weng
- Institute of Biomedical Sciences, National Chung Hsing UniversityTaichungTaiwan
- Institute of Medicine, Chung Shan Medical UniversityTaichungTaiwan
| | - Chien-Yu Chen
- Institute of Biomedical Sciences, National Chung Hsing UniversityTaichungTaiwan
| | - Che-Wei Wang
- Department of Otorhinolaryngology-Head and Neck Surgery, Changhua Christian HospitalChanghuaTaiwan
- Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing UniversityTaichungTaiwan
| | - Mu-Kuan Chen
- Department of Otorhinolaryngology-Head and Neck Surgery, Changhua Christian HospitalChanghuaTaiwan
- Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing UniversityTaichungTaiwan
| | | | | | - Pin Ju Chueh
- Institute of Biomedical Sciences, National Chung Hsing UniversityTaichungTaiwan
- Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing UniversityTaichungTaiwan
- Department of Medical Research, China Medical University HospitalTaichungTaiwan
- Graduate Institute of Basic Medicine, China Medical UniversityTaichungTaiwan
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Rao X, Lei Z, Zhu H, Luo K, Hu C. Knockdown of KIF23 alleviates the progression of asthma by inhibiting pyroptosis. BMJ Open Respir Res 2024; 11:e002089. [PMID: 38569671 PMCID: PMC10989115 DOI: 10.1136/bmjresp-2023-002089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 03/14/2024] [Indexed: 04/05/2024] Open
Abstract
BACKGROUND Asthma is a chronic disease affecting the lower respiratory tract, which can lead to death in severe cases. The cause of asthma is not fully known, so exploring its potential mechanism is necessary for the targeted therapy of asthma. METHOD Asthma mouse model was established with ovalbumin (OVA). H&E staining, immunohistochemistry and ELISA were used to detect the inflammatory response in asthma. Transcriptome sequencing was performed to screen differentially expressed genes (DEGs). The role of KIF23 silencing in cell viability, proliferation and apoptosis was explored by cell counting kit-8, EdU assay and flow cytometry. Effects of KIF23 knockdown on inflammation, oxidative stress and pyroptosis were detected by ELISA and western blot. After screening KIF23-related signalling pathways, the effect of KIF23 on p53 signalling pathway was explored by western blot. RESULTS In the asthma model, the levels of caspase-3, IgG in serum and inflammatory factors (interleukin (IL)-1β, KC and tumour necrosis factor (TNF)-α) in serum and bronchoalveolar lavage fluid were increased. Transcriptome sequencing showed that there were 352 DEGs in the asthma model, and 7 hub genes including KIF23 were identified. Knockdown of KIF23 increased cell proliferation and inhibited apoptosis, inflammation and pyroptosis of BEAS-2B cells induced by IL-13 in vitro. In vivo experiments verified that knockdown of KIF23 inhibited oxidative stress, inflammation and pyroptosis to alleviate OVA-induced asthma mice. In addition, p53 signalling pathway was suppressed by KIF23 knockdown. CONCLUSION Knockdown of KIF23 alleviated the progression of asthma by suppressing pyroptosis and inhibited p53 signalling pathway.
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Affiliation(s)
- Xingyu Rao
- Department of Pediatrics, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Zicheng Lei
- Department of Pediatrics, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Huifang Zhu
- Department of Pediatrics, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Kaiyuan Luo
- Department of Pediatrics, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Chaohua Hu
- Department of Surgery Ⅰ, Third Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
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Albuquerque-Souza E, Shelling B, Jiang M, Xia XJ, Rattanaprukskul K, Sahingur SE. Fusobacterium nucleatum triggers senescence phenotype in gingival epithelial cells. Mol Oral Microbiol 2024; 39:29-39. [PMID: 37718958 PMCID: PMC10939983 DOI: 10.1111/omi.12432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 07/04/2023] [Accepted: 08/07/2023] [Indexed: 09/19/2023]
Abstract
The prevalence of periodontitis increases with physiological aging. However, whether bacteria associated with periodontal diseases foster aging and the mechanisms by which they may do so are unknown. Herein, we hypothesize that Fusobacterium nucleatum, a microorganism associated with periodontitis and several other age-related disorders, triggers senescence, a chief hallmark of aging responsible to reduce tissue repair capacity. Our study analyzed the senescence response of gingival epithelial cells and their reparative capacity upon long-term exposure to F. nucleatum. Specifically, we assessed (a) cell cycle arrest by analyzing the cyclin-dependent kinase inhibitors p16INK4a and p14ARF and their downstream cascade (pRb, p53, and p21) at both gene and protein levels, (b) lysosomal mediated dysfunction by using assays targeting the expression and activity of the senescence-associated β-galactosidase (SA-β-Gal) enzyme, and (c) nuclear envelope breakdown by assessing the expression of Lamin-B1. The consequences of the senescence phenotype mediated by F. nucleatum were further assessed using wound healing assays. Our results revealed that prolonged exposure to F. nucleatum promotes an aging-like phenotype as evidenced by the increased expression of pro-senescence markers (p16INK4a , p21, and pRb) and SA-β-Gal activity and reduced expression of the counter-balancing cascade (p14ARF and p53) and Lamin-B1. Furthermore, we also noted impaired wound healing capacity of gingival epithelial cells upon prolong bacterial exposure, which was consistent with the senescence-induced phenotype. Together, our findings provide a proof-of-concept evidence that F. nucleatum triggers a pro-senescence response in gingival epithelial cells. This might affect periodontal tissue homeostasis by reducing its repair capacity and, consequently, increasing susceptibility to periodontitis during aging.
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Affiliation(s)
- Emmanuel Albuquerque-Souza
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Lipid Mediator Unit, William Harvey Research Institute, Queen Mary University of London, London, UK
| | - Benjamin Shelling
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Min Jiang
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Xia-Juan Xia
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Kantapon Rattanaprukskul
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Sinem Esra Sahingur
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
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Rodrigues JM, Hollander P, Schmidt L, Gkika E, Razmara M, Kumar D, Geisler C, Grønbæk K, Eskelund CW, Räty R, Kolstad A, Sundström C, Glimelius I, Porwit A, Jerkeman M, Ek S. MYC protein is a high-risk factor in mantle cell lymphoma and identifies cases beyond morphology, proliferation and TP53/p53 - a Nordic Lymphoma Group study. Haematologica 2024; 109:1171-1183. [PMID: 37646663 PMCID: PMC10985440 DOI: 10.3324/haematol.2023.283352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 08/21/2023] [Indexed: 09/01/2023] Open
Abstract
The transcription factor MYC is a well-described oncogene with an important role in lymphomagenesis, but its significance for clinical outcome in mantle cell lymphoma (MCL) remains to be determined. We performed an investigation of the expression of MYC protein in a cohort of 251 MCL patients complemented by analyses of structural aberrations and mRNA, in a sub-cohort of patients. Fourteen percent (n=35) of patients showed high MYC protein expression with >20% positive cells (MYChigh), among whom only one translocation was identified, and 86% (n=216) of patients showed low MYC protein expression. Low copy number gains of MYC were detected in ten patients, but with no correlation to MYC protein levels. However, MYC mRNA levels correlated significantly to MYC protein levels with a R2 value of 0.76. Patients with a MYChigh tumor had both an independent inferior overall survival and an inferior progression-free survival (hazard ratio [HR]=2.03, 95% confidence interval [95% CI]: 1.2-3.4 and HR=2.2, 95% CI: 1.04-4.6, respectively) when adjusted for additional high-risk features. Patients with MYChigh tumors also tended to have additional high-risk features and to be older at diagnosis. A subgroup of 13 patients had concomitant MYChigh expression and TP53/p53 alterations and a substantially increased risk of progression (HR=16.9, 95% CI: 7.4-38.3) and death (HR=7.8, 95% CI: 4.4-14.1) with an average overall survival of only 0.9 years. In summary, we found that at diagnosis a subset of MCL patients (14%) overexpressed MYC protein, and had a poor prognosis but that MYC rearrangements were rare. Tumors with concurrent MYC overexpression and TP53/p53 alterations pinpointed MCL patients with a dismal prognosis with a median overall survival of less than 3 years. We propose that MYC needs to be assessed beyond the current high-risk factors in MCL in order to identify cases in need of alternative treatment.
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Affiliation(s)
| | - Peter Hollander
- Cancer Immunotherapy, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala
| | | | | | - Masoud Razmara
- Department of Clinical Pathology, Akademiska University Hospital, Uppsala
| | | | | | - Kirsten Grønbæk
- Department of Hematology, Rigshospitalet, Copenhagen, Denmark; Biotech Research and Innovation Center (BRIC), University of Copenhagen, Copenhagen, Denmark; Department of Clinical Medicine, Faculty of Health Science, University of Copenhagen
| | - Christian W Eskelund
- Department of Hematology, Rigshospitalet, Copenhagen, Denmark; Biotech Research and Innovation Center (BRIC), University of Copenhagen, Copenhagen
| | - Riikka Räty
- Department of Hematology, Helsinki University Hospital, Helsinki
| | - Arne Kolstad
- Department of Oncology, Innlandet Hospital Trust, Division Gjøvik-Lillehammer
| | - Christer Sundström
- Department of Immunology, Genetics and Pathology, Cancer Precision Medicine, Uppsala University, Uppsala
| | - Ingrid Glimelius
- Department of Immunology, Genetics and Pathology, Cancer Precision Medicine, Uppsala University, Uppsala
| | - Anna Porwit
- Division of Oncology, Department of Clinical Sciences, Lund University, Lund
| | - Mats Jerkeman
- Division of Oncology, Department of Clinical Sciences, Lund University, Lund
| | - Sara Ek
- Department of Immunotechnology, Lund University.
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Zhao C, Yu Y, Yin G, Xu C, Wang J, Wang L, Zhao G, Ni S, Zhang H, Zhou B, Wang Y. Sulfasalazine promotes ferroptosis through AKT-ERK1/2 and P53-SLC7A11 in rheumatoid arthritis. Inflammopharmacology 2024; 32:1277-1294. [PMID: 38407703 PMCID: PMC11006818 DOI: 10.1007/s10787-024-01439-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 01/18/2024] [Indexed: 02/27/2024]
Abstract
OBJECTIVE Ferroptosis has been reported to play a role in rheumatoid arthritis (RA). Sulfasalazine, a common clinical treatment for ankylosing spondylitis, also exerts pathological influence on the progression of rheumatoid arthritis including the induced ferroptosis of fibroblast-like synoviocytes (FLSs), which result in the perturbated downstream signaling and the development of RA. The aim of this study was to investigate the underlying mechanism so as to provide novel insight for the treatment of RA. METHODS CCK-8 and Western blotting were used to assess the effect of sulfasalazine on FLSs. A collagen-induced arthritis mouse model was constructed by the injection of collagen and Freund's adjuvant, and then, mice were treated with sulfasalazine from day 21 after modeling. The synovium was extracted and ferroptosis was assessed by Western blotting and immunofluorescence staining. RESULTS The results revealed that sulfasalazine promotes ferroptosis. Compared with the control group, the expression levels of ferroptosis-related proteins such as glutathione peroxidase 4, ferritin heavy chain 1, and solute carrier family 7, member 11 (SLC7A11) were lower in the experimental group. Furthermore, deferoxamine inhibited ferroptosis induced by sulfasalazine. Sulfasalazine-promoted ferroptosis was related to a decrease in ERK1/2 and the increase of P53. CONCLUSIONS Sulfasalazine promoted ferroptosis of FLSs in rheumatoid arthritis, and the PI3K-AKT-ERK1/2 pathway and P53-SLC7A11 pathway play an important role in this process.
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Affiliation(s)
- Chenyu Zhao
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, 29 Xinglong Alley, Changzhou, 213003, China
- Graduate School of Dalian Medical University, 9 West Section, Shunnan Road, Dalian, 116044, China
| | - Yunyuan Yu
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, 29 Xinglong Alley, Changzhou, 213003, China
- Nanjing Medical University, 101 Longmian Avenue, Jiangning District, Nanjing, 210039, China
| | - Guangrong Yin
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, 29 Xinglong Alley, Changzhou, 213003, China
| | - Chao Xu
- Truma Central, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, 29 Xinglong Alley, Changzhou, 213003, China
| | - Jiahao Wang
- Department of Orthopedics, Affiliated Sport Hospital of CDSU (Chengdu Sport University), 251 Wuhouci Street, Chengdu, 610041, China
| | - Liangliang Wang
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, 29 Xinglong Alley, Changzhou, 213003, China
| | - Gongyin Zhao
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, 29 Xinglong Alley, Changzhou, 213003, China
- Department of Orthopedic Surgery and Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA
| | - Su Ni
- Medical Research Center, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, 29 Xinglong Alley, Changzhou, 213003, China
| | - Haoxing Zhang
- Guangdong Provincial Key Laboratory of Genome Stability and Disease Prevention, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, People's Republic of China
| | - Baojun Zhou
- Department of Orthopedics, The Third Affiliated Hospital of Gansu University of Chinese Medicine, 222 Silong Road, Baiyin, 730900, China
| | - Yuji Wang
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, 29 Xinglong Alley, Changzhou, 213003, China.
- Department of Orthopedic Surgery and Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA.
- Department of Orthopedics, The Third Affiliated Hospital of Gansu University of Chinese Medicine, 222 Silong Road, Baiyin, 730900, China.
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Huang X, Cao Z, Qian J, Ding T, Wu Y, Zhang H, Zhong S, Wang X, Ren X, Zhang W, Xu Y, Yao G, Wang X, Yang X, Wen L, Zhang Y. Nanoreceptors promote mutant p53 protein degradation by mimicking selective autophagy receptors. Nat Nanotechnol 2024; 19:545-553. [PMID: 38216684 DOI: 10.1038/s41565-023-01562-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 11/01/2023] [Indexed: 01/14/2024]
Abstract
In some cancers mutant p53 promotes the occurrence, development, metastasis and drug resistance of tumours, with targeted protein degradation seen as an effective therapeutic strategy. However, a lack of specific autophagy receptors limits this. Here, we propose the synthesis of biomimetic nanoreceptors (NRs) that mimic selective autophagy receptors. The NRs have both a component for targeting the desired protein, mutant-p53-binding peptide, and a component for enhancing degradation, cationic lipid. The peptide can bind to mutant p53 while the cationic lipid simultaneously targets autophagosomes and elevates the levels of autophagosome formation, increasing mutant p53 degradation. The NRs are demonstrated in vitro and in a patient-derived xenograft ovarian cancer model in vivo. The work highlights a possible direction for treating diseases by protein degradation.
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Affiliation(s)
- Xiaowan Huang
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, People's Republic of China
- School of Medicine, South China University of Technology, Guangzhou, People's Republic of China
| | - Ziyang Cao
- Department of General Surgery, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, People's Republic of China
| | - Jieying Qian
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, People's Republic of China
| | - Tao Ding
- School of Medicine, South China University of Technology, Guangzhou, People's Republic of China
| | - Yanxia Wu
- Molecular Cancer Research Center, School of Medicine, Sun Yat-Sen University, Shenzhen, People's Republic of China
| | - Hao Zhang
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, People's Republic of China
| | - Suqin Zhong
- School of Medicine, South China University of Technology, Guangzhou, People's Republic of China
| | - Xiaoli Wang
- School of Medicine, South China University of Technology, Guangzhou, People's Republic of China
| | - Xiaoguang Ren
- School of Medicine, South China University of Technology, Guangzhou, People's Republic of China
| | - Wang Zhang
- School of Medicine, South China University of Technology, Guangzhou, People's Republic of China
| | - Youcui Xu
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Guangyu Yao
- Breast Center, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Xingwu Wang
- Molecular Cancer Research Center, School of Medicine, Sun Yat-Sen University, Shenzhen, People's Republic of China
| | - Xianzhu Yang
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, People's Republic of China.
- National Engineering Research Centre for Tissue Restoration and Reconstruction and Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, People's Republic of China.
| | - Longping Wen
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China.
| | - Yunjiao Zhang
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, People's Republic of China.
- School of Medicine, South China University of Technology, Guangzhou, People's Republic of China.
- National Engineering Research Centre for Tissue Restoration and Reconstruction and Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou, People's Republic of China.
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35
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Jiménez AG, Paul KD, Benson M, Lalwani S, Cipolli W. Cellular metabolic pathways of aging in dogs: could p53 and SIRT1 be at play? GeroScience 2024; 46:1895-1908. [PMID: 37768524 PMCID: PMC10828300 DOI: 10.1007/s11357-023-00942-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
Aging and cancer seem to be closely associated, such that cancer is generally considered a disease of the elderly in both humans and dogs. Additionally, cancer is a metabolic shift in itself towards aerobic glycolysis. Larger dog breeds with shorter lifespans, and increased glycolytic cellular metabolic rates, die of cancer more often than smaller breeds. The tumor suppressor p53 factor is a key suppressor oncogene, and the p53 pathway arrests cellular proliferation and prevents DNA mutations from accumulating during cellular stress. The p53 pathway is also associated with the control of cellular metabolism to prevent cellular metabolic shifts common to cancerous phenotypes. SIRT1 deacetylates the p53 tumor suppressor protein, downregulating p53 via effects on stability and activity during stress. Here, we used primary fibroblast cells from small and large puppies and old dogs. Using UV radiation to upregulate the p53 system (100 J/m2), control cells and UV-treated cells were used to measure aerobic and glycolytic metabolic rates using a Seahorse XFe96 oxygen flux analyzer. We also quantified p53 expression and SIRT1 concentration in canine primary fibroblasts before and after UV treatment. We demonstrate that, due to a higher p53 nuclear to cytoplasmic ratio in large breed dogs after UV treatment, p53 could have a more regulatory effect on large breed dogs' metabolism compared with smaller breeds. Thus, there may be a link between p53 upregulation and inhibition of glycolysis in large breed dogs during times of cellular stress compared with small breed dogs. However, SIRT1 concentrations decrease with age in domestic dogs of both size classes, suggesting a possible release of inhibition of p53 through the SIRT1 pathway with age. This may lead to increased incidences of cancer, especially due to the more pronounced upregulation of p53 with cellular stress.
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Affiliation(s)
- Ana Gabriela Jiménez
- Department of Biology, Colgate University, 13 Oak Dr., Hamilton, NY, 13346, USA.
| | - Kailey D Paul
- Department of Biology, Colgate University, 13 Oak Dr., Hamilton, NY, 13346, USA
| | - Mitchel Benson
- Department of Biology, Colgate University, 13 Oak Dr., Hamilton, NY, 13346, USA
| | - Sahil Lalwani
- Stanford Law School, Crown Quadrangle, 559 Nathan Abbott Way, Stanford, CA, 94305, USA
| | - William Cipolli
- Department of Mathematics, Colgate University, 13 Oak Dr., Hamilton, NY, 13346, USA
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36
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Nolt GL, Keeble AR, Wen Y, Strong AC, Thomas NT, Valentino TR, Brightwell CR, Murach KA, Patrizia S, Weinstabl H, Gollner A, McCarthy JJ, Fry CS, Franti M, Filareto A, Peterson CA, Dungan CM. Inhibition of p53-MDM2 binding reduces senescent cell abundance and improves the adaptive responses of skeletal muscle from aged mice. GeroScience 2024; 46:2153-2176. [PMID: 37872294 PMCID: PMC10828311 DOI: 10.1007/s11357-023-00976-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 10/09/2023] [Indexed: 10/25/2023] Open
Abstract
Skeletal muscle adaptation to external stimuli, such as regeneration following injury and hypertrophy in response to resistance exercise, are blunted with advanced age. The accumulation of senescent cells, along with defects in myogenic progenitor cell (MPC) proliferation, have been strongly linked as contributing factors to age-associated impairment in muscle adaptation. p53 plays an integral role in all these processes, as upregulation of p53 causes apoptosis in senescent cells and prevents mitotic catastrophe in MPCs from old mice. The goal of this study was to determine if a novel pharmaceutical agent (BI01), which functions by upregulating p53 through inhibition of binding to MDM2, the primary p53 regulatory protein, improves muscle regeneration and hypertrophy in old mice. BI01 effectively reduced the number of senescent cells in vitro but had no effect on MPC survival or proliferation at a comparable dose. Following repeated oral gavage with 2 mg/kg of BI01 (OS) or vehicle (OV), old mice (24 months) underwent unilateral BaCl2 injury in the tibialis anterior (TA) muscle, with PBS injections serving as controls. After 7 days, satellite cell number was higher in the TA of OS compared to OV mice, as was the expression of genes involved in ATP production. By 35 days, old mice treated with BI01 displayed reduced senescent cell burden, enhanced regeneration (higher muscle mass and fiber cross-sectional area) and restoration of muscle function relative to OV mice. To examine the impact of 2 mg/kg BI01 on muscle hypertrophy, the plantaris muscle was subjected to 28 days of mechanical overload (MOV) in OS and OV mice. In response to MOV, OS mice had larger plantaris muscles and muscle fibers than OV mice, particularly type 2b + x fibers, associated with reduced senescent cells. Together our data show that BI01 is an effective senolytic agent that may also augment muscle metabolism to enhance muscle regeneration and hypertrophy in old mice.
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Affiliation(s)
- Georgia L Nolt
- Department of Physiology, University of Kentucky, Lexington, KY, USA
- The Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
| | - Alexander R Keeble
- Department of Physiology, University of Kentucky, Lexington, KY, USA
- The Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
| | - Yuan Wen
- The Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- Department of Physical Therapy, University of Kentucky, Lexington, KY, USA
| | - Aubrey C Strong
- The Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
| | - Nicholas T Thomas
- The Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- Department of Athletic Training and Clinical Nutrition, University of Kentucky, Lexington, KY, USA
| | - Taylor R Valentino
- Department of Physiology, University of Kentucky, Lexington, KY, USA
- The Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
| | - Camille R Brightwell
- The Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- Department of Athletic Training and Clinical Nutrition, University of Kentucky, Lexington, KY, USA
| | - Kevin A Murach
- Department of Health, Human Performance, and Recreation, University of Arkansas, Fayetteville, AR, USA
| | - Sini Patrizia
- Regenerative Medicine, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road, Ridgefield, CT, 06877, USA
| | - Harald Weinstabl
- Boehringer Ingelheim RCV, Boehringer Ingelheim Pharmaceuticals Inc., Vienna, Austria
| | - Andreas Gollner
- Boehringer Ingelheim RCV, Boehringer Ingelheim Pharmaceuticals Inc., Vienna, Austria
| | - John J McCarthy
- Department of Physiology, University of Kentucky, Lexington, KY, USA
- The Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
| | - Christopher S Fry
- The Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- Department of Athletic Training and Clinical Nutrition, University of Kentucky, Lexington, KY, USA
| | - Michael Franti
- Regenerative Medicine, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road, Ridgefield, CT, 06877, USA
| | - Antonio Filareto
- Regenerative Medicine, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road, Ridgefield, CT, 06877, USA.
| | - Charlotte A Peterson
- The Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- Department of Physical Therapy, University of Kentucky, Lexington, KY, USA
| | - Cory M Dungan
- The Center for Muscle Biology, University of Kentucky, Lexington, KY, USA.
- Department of Physical Therapy, University of Kentucky, Lexington, KY, USA.
- Department of Health, Human Performance, and Recreation, Baylor University, One Bear Place #97313, Waco, TX, 76706, USA.
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Butler C, Dunmire M, Choi J, Szalai G, Johnson A, Lei W, Chen X, Liu L, Li W, Walter MJ, Liu T. HSPA9/mortalin inhibition disrupts erythroid maturation through a TP53-dependent mechanism in human CD34+ hematopoietic progenitor cells. Cell Stress Chaperones 2024; 29:300-311. [PMID: 38508444 PMCID: PMC10998001 DOI: 10.1016/j.cstres.2024.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 03/16/2024] [Accepted: 03/16/2024] [Indexed: 03/22/2024] Open
Abstract
Myelodysplastic syndromes (MDS) are a heterogeneous group of clonal hematopoietic stem cell malignancies characterized by abnormal hematopoietic cell maturation, increased apoptosis of bone marrow cells, and anemia. They are the most common myeloid blood cancers in American adults. The full complement of gene mutations that contribute to the phenotypes or clinical symptoms in MDS is not fully understood. Around 10%-25% of MDS patients harbor an interstitial heterozygous deletion on the long arm of chromosome 5 [del(5q)], creating haploinsufficiency for a large set of genes, including HSPA9. The HSPA9 gene encodes for the protein mortalin, a highly conserved heat shock protein predominantly localized in mitochondria. Our prior study showed that knockdown of HSPA9 induces TP53-dependent apoptosis in human CD34+ hematopoietic progenitor cells. In this study, we explored the role of HSPA9 in regulating erythroid maturation using human CD34+ cells. We inhibited the expression of HSPA9 using gene knockdown and pharmacological inhibition and found that inhibition of HSPA9 disrupted erythroid maturation as well as increased expression of p53 in CD34+ cells. To test whether the molecular mechanism of HSPA9 regulating erythroid maturation is TP53-dependent, we knocked down HSPA9 and TP53 individually or in combination in human CD34+ cells. We found that the knockdown of TP53 partially rescued the erythroid maturation defect induced by HSPA9 knockdown, suggesting that the defect in cells with reduced HSPA9 expression is TP53-dependent. Collectively, these findings indicate that reduced levels of HSPA9 may contribute to the anemia observed in del(5q)-associated MDS patients due to the activation of TP53.
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Affiliation(s)
- Christopher Butler
- Department of Biomedical Sciences, West Virginia School of Osteopathic Medicine, Lewisburg, WV, USA
| | - Morgan Dunmire
- Department of Biomedical Sciences, West Virginia School of Osteopathic Medicine, Lewisburg, WV, USA
| | - Jaebok Choi
- Department of Medicine, Division of Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - Gabor Szalai
- Department of Biomedical Sciences, Burrell College of Osteopathic Medicine, Las Cruces, NM, USA
| | - Anissa Johnson
- Department of Biomedical Sciences, Burrell College of Osteopathic Medicine, Las Cruces, NM, USA
| | - Wei Lei
- Department of Pharmaceutical and Graduate Life Sciences, Manchester University College of Pharmacy, Natural and Health Sciences, Fort Wayne, IN, USA
| | - Xin Chen
- Department of Pharmaceutical and Clinical Sciences, College of Pharmacy and Health Sciences, Campbell University, Buies Creek, NC, USA
| | - Liang Liu
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Wei Li
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, USA
| | - Matthew J Walter
- Department of Medicine, Division of Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - Tuoen Liu
- Department of Biomedical Sciences, West Virginia School of Osteopathic Medicine, Lewisburg, WV, USA.
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Belji Kangarlou M, Khavanin A, Nadri F, Goodarzi Z, Karami E, Rashidy-Pour A, Kiani M, Hashemi Habybabady R. Noise and silver nanoparticles induce hepatotoxicity via CYP450/NF-Kappa B 2 and p53 signaling pathways in a rat model. Toxicol Ind Health 2024; 40:206-219. [PMID: 38358440 DOI: 10.1177/07482337241233317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Co-exposure to noise and nanomaterials, such as silver nanoparticles (Silver-NPs), is a common occurrence in today's industries. This study aimed to investigate the effects of exposure to noise and the administration of silver-NPs on the liver tissue of rats. Thirty-six adult male albino Wistar rats were randomly divided into six groups: a control group (administered saline intraperitoneally), two groups administered different doses of Silver-NPs (50 mg/kg and 100 mg/kg, 5 days a week for 28 days), two groups exposed to noise in addition to Silver-NPs (at the same doses as mentioned before), and a group exposed only to noise (104 dB, 6 hours a day, 5 days a week for 4 weeks). Blood samples were taken to assess hepatic-functional alterations, such as serum ALP, ALT, and AST levels. Additionally, biochemical parameters (MDA, GPX, and CAT) and the silver concentration in the liver were measured. Histopathological analysis, mRNA expression (P53 and NF-κB), protein expression (CYP450), and liver weight changes in rats were also documented. The study found that the administration of Silver-NPs and exposure to noise resulted in elevated levels of ALP, ALT, AST, and MDA (p < .01). Conversely, GPX and CAT levels decreased in all groups compared with the control group (p < .0001). There was a significant increase (p < .05) in liver weight and silver concentration in the liver tissues of groups administered Silver-NPs (50 mg/kg) plus noise exposure, Silver-NPs (100 mg/kg), and Silver-NPs (100 mg/kg) plus noise exposure, respectively. The expression rate of P53, NF-κB, and cytochromes P450 (CYPs-450) was increased in the experimental groups (p < .05). These findings were further confirmed by histopathological changes. In conclusion, this study demonstrated that exposure to noise and the administration of Silver-NPs exacerbated liver damage by increasing protein and gene expression, causing hepatic necrosis, altering biochemical parameters, and affecting liver weight.
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Affiliation(s)
- Marzieh Belji Kangarlou
- Department of Occupational Health Engineering, Faculty of Medical Sciences, Tarbiat Modarres University, Tehran, Iran
| | - Ali Khavanin
- Department of Occupational Health Engineering, Faculty of Medical Sciences, Tarbiat Modarres University, Tehran, Iran
| | - Farshad Nadri
- Department of Occupational Health Engineering, Faculty of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Zahra Goodarzi
- Department of Occupational Health Engineering, Faculty of Medical Sciences, Tarbiat Modarres University, Tehran, Iran
| | - Esmaeil Karami
- Department of Occupational Health Engineering, School of Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Rashidy-Pour
- Research Center of Physiology, Semnan University of Medical Sciences, Semnan, Iran
| | - Mehrafarin Kiani
- Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Raheleh Hashemi Habybabady
- Health Promotion Research Centre, Department of Occupational Health Engineering, Zahedan University of Medical Sciences, Zahedan, Iran
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Zhou B, Wang L, Ren Z, Liang Y, Yang S, Zhang Y, Che S, Fang W. Pyrogallol promotes growth arrest by activating the p53-mediated up-regulation of p21 and p62/SQSTM1-dependent degradation of β-catenin in nonsmall cell lung cancer cells. Environ Toxicol 2024; 39:2150-2165. [PMID: 38108618 DOI: 10.1002/tox.24099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 11/13/2023] [Accepted: 12/01/2023] [Indexed: 12/19/2023]
Abstract
Pyrogallol (1,2,3-trihydroxybenzene), a polyphenolic natural compound, has attracted considerable attention with regard to its potential anticancer activity. However, further study is needed to elucidate the underlying mechanism related to the antiNSCLC activity of pyrogallol and provide a comprehensive theoretical basis for better clinical utilization of pyrogallol. Our current study aims to investigate the effects and potential underlying mechanisms of pyrogallol on the inhibition of NSCLC growth. Our results showed that pyrogallol treatment induced cell cycle arrest at the G2/M phase and apoptosis in two different NSCLC cell lines. Mechanistically, we found that the induction of cell cycle arrest in NSCLC cells at the G2/M phase by pyrogallol was due to the upregulation of p21 in a p53-dependent manner. And blockade of p53 and p21 effectively abolished the cell cycle arrest at the G2/M phase. Meanwhile, p53 inhibition has been found to abrogate the pyrogallol-induced apoptosis of the two NSCLC cells. Moreover, we revealed that the inhibitory effects of pyrogallol on β-catenin signaling resulted from autophagy initiation depending on p53 activation, accompanied by an increase in p62/SQSTM1 expression, thus p62 subsequently interacting with ubiquitinated β-catenin and facilitating autophagic destruction of β-catenin. Furthermore, in vivo experiments demonstrated that pyrogallol exerted growth inhibition on NSCLC with low toxicity through the same molecular mechanism as observed in vitro. Our findings could contribute to the understanding of the mechanism by which pyrogallol negatively regulates NSCLC growth, which could be effective in treating NSCLC.
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Affiliation(s)
- Beixian Zhou
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
- The People's Hospital of Gaozhou, Gaozhou, China
| | - Linxin Wang
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Zhixian Ren
- School of Chinese Materia Medica and Yunnan Key Laboratory of Southern Medicine Utilization, Yunnan University of Chinese Medicine, Kunming, China
| | - Yueyun Liang
- The People's Hospital of Gaozhou, Gaozhou, China
| | - Sushan Yang
- The People's Hospital of Gaozhou, Gaozhou, China
| | - Yuehan Zhang
- The People's Hospital of Gaozhou, Gaozhou, China
| | - Siyao Che
- The People's Hospital of Gaozhou, Gaozhou, China
| | - Weiyi Fang
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
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Li QZ, Chen YY, Liu QP, Feng ZH, Zhang L, Zhang H. Cucurbitacin B suppresses hepatocellular carcinoma progression through inducing DNA damage-dependent cell cycle arrest. Phytomedicine 2024; 126:155177. [PMID: 38412667 DOI: 10.1016/j.phymed.2023.155177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 10/15/2023] [Accepted: 10/31/2023] [Indexed: 02/29/2024]
Abstract
BACKGROUND The mortality rate of liver cancer ranks third in the world, and hepatocellular carcinoma (HCC) is a malignant tumor of the digestive tract. Cucurbitacin B (CuB), a natural compound extracted from Cucurbitaceae spp., is the main active component of Chinese patent medicine the Cucurbitacin Tablet, which has been widely used in the treatment of various malignant tumors in clinics, especially HCC. PURPOSE This study explored the role and mechanism of CuB in the suppression of liver cancer progression. METHODS Cell Counting Kit-8 (CCK-8) and colony formation assays were used to detect the inhibitory function of CuB in Huh7, Hep3B, and Hepa1/6 hepatoma cells. Calcein-AM/propidium iodide (PI) staining and lactate dehydrogenase (LDH) measurement assays were performed to determine cell death. Mitochondrial membrane potential (Δψm) was measured, and flow cytometry was performed to evaluate cell apoptosis and cell cycle. Several techniques, such as proteomics, Western blotting (WB), and ribonucleic acid (RNA) interference, were utilized to explore the potential mechanism. The animal experiment was performed to verify the results of in vitro experiments. RESULTS CuB significantly inhibited the growth of Huh7, Hep3B, and Hepa1/6 cells and triggered the cell cycle arrest in G2/M phage without leading to cell death, especially apoptosis. Knockdown of insulin-like growth factor 2 mRNA-binding protein 1 (IGF2BP1), a target of CuB, did not reverse CuB elicited cell cycle arrest. CuB enhanced phosphorylated ataxia telangiectasia mutated (p-ATM) and phosphorylated H2A histone family member X (γ-H2AX) levels. Moreover, CuB increased p53 and p21 levels and decreased cyclin-dependent kinase 1 (CDK1) expression, accompanied by improving phosphorylated checkpoint kinase 1 (p-CHK1) level and suppressing cell division cycle 25C (CDC25C) protein level. Interestingly, these phenomena were partly abolished by a deoxyribonucleic acid (DNA) protector methylproamine (MPA). Animal studies showed that CuB also significantly suppressed tumor growth in BALB/c mice bearing Hepa1/6 cells. In tumor tissues, CuB reduced the expression levels of proliferating cell nuclear antigen (PCNA) and γ-H2AX but did not change the terminal deoxynucleotidyl transferase deoxyuridine triphosphate (dUTP) nick-end labeling (TUNEL) level. CONCLUSION This study demonstrated for the first time that CuB could effectively impede HCC progression by inducing DNA damage-dependent cell cycle arrest without directly triggering cell death, such as necrosis and apoptosis. The effect was achieved through ataxia telangiectasia mutated (ATM)-dependent p53-p21-CDK1 and checkpoint kinase 1 (CHK1)-CDC25C signaling pathways. These findings indicate that CuB may be used as an anti-HCC drug, when the current findings are confirmed by independent studies and after many more clinical phase 1, 2, 3, and 4 testings have been done.
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Affiliation(s)
- Qi-Zhang Li
- Innovative Drug R&D Center, College of Life Sciences, Huaibei Normal University, Huaibei, Anhui 235000, China
| | - Yu-Ying Chen
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Qiu-Ping Liu
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Zhi-Hui Feng
- Innovative Drug R&D Center, College of Life Sciences, Huaibei Normal University, Huaibei, Anhui 235000, China
| | - Lei Zhang
- Innovative Drug R&D Center, College of Life Sciences, Huaibei Normal University, Huaibei, Anhui 235000, China; Department of Pharmaceutical Botany, School of Pharmacy, Naval Medical University, Shanghai 200433, China.
| | - Hong Zhang
- Innovative Drug R&D Center, College of Life Sciences, Huaibei Normal University, Huaibei, Anhui 235000, China.
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Zhu S, Li X, Dai X, Li J. Prenatal cadmium exposure impairs neural tube closure via inducing excessive apoptosis in neuroepithelium. J Environ Sci (China) 2024; 138:572-584. [PMID: 38135421 DOI: 10.1016/j.jes.2023.03.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 03/25/2023] [Accepted: 03/27/2023] [Indexed: 12/24/2023]
Abstract
Birth defects have become a public health concern. The hazardous environmental factors exposure to embryos could increase the risk of birth defects. Cadmium, a toxic environmental factor, can cross the placental barrier during pregnancy. Pregnant woman may be subjected to cadmium before taking precautionary protective actions. However, the link between birth defects and cadmium remains obscure. Cadmium exposure can induce excessive apoptosis in neuroepithelium during embryonic development progresses. Cadmium exposure activated the p53 via enhancing the adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) and reactive oxygen species' (ROS) level. And cadmium decreases the level of Paired box 3 (Pax3) and murine double minute 2 (Mdm2), disrupting the process of p53 ubiquitylation. And p53 accumulation induced excessive apoptosis in neuroepithelium during embryonic development progresses. Excessive apoptosis led to the failure of neural tube closure. The study emphasizes that environmental materials may increase the health risk for embryos. Cadmium caused the failure of neural tube closure during early embryotic day. Pregnant women may be exposed by cadmium before taking precautionary protective actions, because of cadmium concentration-containing foods and environmental tobacco smoking. This suggests that prenatal cadmium exposure is a threatening risk factor for birth defects.
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Affiliation(s)
- Shiyong Zhu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Xuenan Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Xueyan Dai
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Jinlong Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin 150030, China.
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42
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Zhang Y, Wang ZZ, Han AQ, Yang MY, Zhu LX, Pan FM, Wang Y. TuBG1 promotes hepatocellular carcinoma via ATR/P53-apoptosis and cycling pathways. Hepatobiliary Pancreat Dis Int 2024; 23:195-209. [PMID: 37806848 DOI: 10.1016/j.hbpd.2023.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 09/19/2023] [Indexed: 10/10/2023]
Abstract
BACKGROUND As reported, γ-tubulin (TuBG1) is related to the occurrence and development of various types of malignant tumors. However, its role in hepatocellular cancer (HCC) is not clear. The present study was to investigate the relationship between TuBG1 and clinical parameters and survival in HCC patients. METHODS The correlation between TuBG1 and clinical parameters and survival in HCC patients was explored by bioinformatics analysis. Immunohistochemistry was used for the verification. The molecular function of TuBG1 was measured using colony formation, scratch assay, trans-well assay and flow cytometry. Gene set enrichment analysis (GSEA) was used to pick up the enriched pathways, followed by investigating the target pathways using Western blotting. The tumor-immune system interactions and drug bank database (TISIDB) was used to evaluate TuBG1 and immunity. Based on the TuBG1-related immune genes, a prognostic model was constructed and was further validated internally and externally. RESULTS The bioinformatic analysis found high expressed TuBG1 in HCC tissue, which was confirmed using immunohistochemistry and Western blotting. After silencing the TuBG1 in HCC cell lines, more G1 arrested cells were found, cell proliferation and invasion were inhibited, and apoptosis was promoted. Furthermore, the silence of TuBG1 increased the expressions of Ataxia-Telangiectasia and Rad-3 (ATR), phospho-P38 mitogen-activated protein kinase (P-P38MAPK), phospho-P53 (P-P53), B-cell lymphoma-2 associated X protein (Bax), cleaved caspase 3 and P21; decreased the expressions of B-cell lymphoma-2 (Bcl-2), cyclin D1, cyclin E2, cyclin-dependent kinase 2 (CDK2) and CDK4. The correlation analysis of immunohistochemistry and clinical parameters and survival data revealed that TuBG1 was negatively correlated with the overall survival. The constructed immune prognosis model could effectively evaluate the prognosis. CONCLUSIONS The increased expression of TuBG1 in HCC is associated with poor prognosis, which might be involved in the occurrence and development of HCC.
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Affiliation(s)
- Yan Zhang
- Department of General Surgery, The Second Hospital of Anhui Medical University, Hefei 230601, China
| | - Zhen-Zhen Wang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - An-Qi Han
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Ming-Ya Yang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Li-Xin Zhu
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Fa-Ming Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei 230032, China
| | - Yong Wang
- Department of General Surgery, The Second Hospital of Anhui Medical University, Hefei 230601, China.
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Zhou X, Wu D, Mi T, Li R, Guo T, Li W. Icaritin activates p53 and inhibits aerobic glycolysis in liver cancer cells. Chem Biol Interact 2024; 392:110926. [PMID: 38431053 DOI: 10.1016/j.cbi.2024.110926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/23/2024] [Accepted: 02/22/2024] [Indexed: 03/05/2024]
Abstract
Metabolic reprogramming enables cancer cells to generate energy mainly through aerobic glycolysis, which is achieved by increasing the expression levels of glycolysis-related enzymes. Therefore, the development of drugs targeting aerobic glycolysis could be an effective strategy for cancer treatment. Icaritin (ICT) is an active ingredient from the Chinese herbal plant Epimedium with several biological activities, but its anti-cancer mechanism remains inconclusive. Using normal hepatocytes and hepatoma cells, our results showed that ICT suppressed cell proliferation and clonal formation and decreased glucose consumption and lactate production in liver cancer cells. In consistent, the mRNA and protein levels of several aerobic glycolysis-related genes were decreased upon ICT treatment. Furthermore, our results demonstrated that the expression levels of the aerobic glycolysis-related proteins were correlated with the p53 status in hepatoma cells. Using PFT-α or siRNA-p53, our results confirmed that ICT regulated aerobic glycolysis in a p53-dependent manner. In addition, ICT was found to stabilize p53 at the post-translational level which might be mediated by inhibiting MDM2 expression and affecting its interaction with p53. Finally, our results demonstrated that ICT increased the levels of ROS that activated p53 via the p38 MAPK pathway. In conclusion, ICT increased intracellular ROS levels in liver cancer cells, which promoted the stabilization and activation of p53, inhibiting the expression of aerobic glycolysis-related genes and glycolysis, and ultimately leading to the suppression of liver cancer development.
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Affiliation(s)
- Xiangyang Zhou
- College of Basic Medicine, Hebei University, Baoding, Hebei, 071000, China; Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-autoimmune Diseases in Hebei Province, Hebei University, Baoding, Hebei, 071000, China; State Key Laboratory of New Pharmaceutical Preparations and Excipients, Baoding, Hebei, 071000, China
| | - Di Wu
- College of Basic Medicine, Hebei University, Baoding, Hebei, 071000, China; Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-autoimmune Diseases in Hebei Province, Hebei University, Baoding, Hebei, 071000, China; State Key Laboratory of New Pharmaceutical Preparations and Excipients, Baoding, Hebei, 071000, China
| | - Tian Mi
- College of Basic Medicine, Hebei University, Baoding, Hebei, 071000, China; Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-autoimmune Diseases in Hebei Province, Hebei University, Baoding, Hebei, 071000, China; State Key Laboratory of New Pharmaceutical Preparations and Excipients, Baoding, Hebei, 071000, China
| | - Ruohan Li
- College of Basic Medicine, Hebei University, Baoding, Hebei, 071000, China
| | - Tao Guo
- College of Basic Medicine, Hebei University, Baoding, Hebei, 071000, China; Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-autoimmune Diseases in Hebei Province, Hebei University, Baoding, Hebei, 071000, China; State Key Laboratory of New Pharmaceutical Preparations and Excipients, Baoding, Hebei, 071000, China.
| | - Wenjuan Li
- College of Basic Medicine, Hebei University, Baoding, Hebei, 071000, China; Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-autoimmune Diseases in Hebei Province, Hebei University, Baoding, Hebei, 071000, China; State Key Laboratory of New Pharmaceutical Preparations and Excipients, Baoding, Hebei, 071000, China.
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Łasut-Szyszka B, Gdowicz-Kłosok A, Małachowska B, Krześniak M, Będzińska A, Gawin M, Pietrowska M, Rusin M. Transcriptomic and proteomic study of cancer cell lines exposed to actinomycin D and nutlin-3a reveals numerous, novel candidates for p53-regulated genes. Chem Biol Interact 2024; 392:110946. [PMID: 38460933 DOI: 10.1016/j.cbi.2024.110946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 02/28/2024] [Accepted: 03/06/2024] [Indexed: 03/11/2024]
Abstract
Transcriptomic analyses have revealed hundreds of p53-regulated genes; however, these studies used a limited number of cell lines and p53-activating agents. Therefore, we searched for candidate p53-target genes by employing stress factors and cell lines never before used in a high-throughput search for p53-regulated genes. We performed RNA-Seq on A549 cells exposed to camptothecin, actinomycin D, nutlin-3a, as well as a combination of actinomycin D and nutlin-3a (A + N). The latter two substances synergise upon the activation of selected p53-target genes. A similar analysis was performed on other cell lines (U-2 OS, NCI-H460, A375) exposed to A + N. To identify proteins in cell lysates or those secreted into a medium of A549 cells in control conditions or treated with A + N, we employed mass spectrometry. The expression of selected genes strongly upregulated by A + N or camptothecin was examined by RT-PCR in p53-deficient cells and their controls. We found that p53 participates in the upregulation of: ACP5, APOL3, CDH3, CIBAR2, CRABP2, CTHRC1, CTSH, FAM13C, FBXO2, FRMD8, FRZB, GAST, ICOSLG, KANK3, KCNK6, KLRG2, MAFB, MR1, NDRG4, PTAFR, RETSAT, TMEM52, TNFRSF14, TRANK1, TYSND1, WFDC2, WFDC5, WNT4 genes. Twelve of these proteins were detected in the secretome and/or proteome of treated cells. Our data generated new hypotheses concerning the functioning of p53. Many genes activated by A + N or camptothecin are also activated by interferons, indicating a noticeable overlap between transcriptional programs of p53 and these antiviral cytokines. Moreover, several identified genes code for antagonists of WNT/β-catenin signalling pathways, which suggests new connections between these two cancer-related signalling systems. One of these antagonists is DRAXIN. Previously, we found that its gene is activated by p53. In this study, using mass spectrometry and Western blotting, we detected expression of DRAXIN in a medium of A549 cells exposed to A + N. Thus, this protein functions not only in the development of the nervous system, but it may also have a new cancer-related function.
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Affiliation(s)
- Barbara Łasut-Szyszka
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-101, Gliwice, Poland
| | - Agnieszka Gdowicz-Kłosok
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-101, Gliwice, Poland
| | - Beata Małachowska
- Department of Radiation Oncology, Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx, NY, 10461, USA
| | - Małgorzata Krześniak
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-101, Gliwice, Poland
| | - Agnieszka Będzińska
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-101, Gliwice, Poland
| | - Marta Gawin
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-101, Gliwice, Poland
| | - Monika Pietrowska
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-101, Gliwice, Poland
| | - Marek Rusin
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-101, Gliwice, Poland.
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Wei J, Dai J, Shi X, Zhao R, Fu G, Li R, Xia C, Zhang L, Zhou T, Wang H, Shi Y. Cadmium disrupts spermatogenic cell cycle via piRNA-DQ717867/p53 pathway. Reprod Toxicol 2024; 125:108554. [PMID: 38331007 DOI: 10.1016/j.reprotox.2024.108554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/17/2024] [Accepted: 01/30/2024] [Indexed: 02/10/2024]
Abstract
Cadmium (Cd) is a harmful environmental pollutant that disrupts public health, including respiratory, digestive, and reproductive systems. In this study, male rats were exposed to CdCl2 at a dose of 3 mg/kg by oral for 28 days to investigate the impact on spermatogenesis. Testis tissue samples were collected after sacrifice, and piRNA expression levels were measured using piRNA microarray and qPCR. PiRNAs, specialized molecules involved in spermatogenesis, were examined. CdCl2 exposure led to disrupted piRNA expression, particularly in piRNA-DQ759395 in rats. This piRNA was found to have a binding site with p53, and a similar piRNA-DQ717867 was discovered in mice. In GC-2spd cells, CdCl2 exposure increased piRNA-DQ717867 expression, which resulted in cell cycle arrest and abnormal expression of cell cycle-related proteins. The activation of p53-related pathways and disruptions in cell cycle regulation were also observed. Antagomir-717867 transfections and PFT-a pretreatment in GC-2spd cells supported the involvement of piRNA-DQ717867 in regulating cell cycle-related proteins. This study suggests that Cd exposure induces abnormal expression of piRNA-DQ759395 in rat testis and that piRNA-DQ717867 may regulate p53, causing cell cycle abnormalities in GC-2spd cells. These findings help understand the mechanisms of male reproductive toxicity caused by Cd exposure and emphasize the role of piRNAs in cell cycle regulation and male reproductive health.
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Affiliation(s)
- Jiaoyang Wei
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, China
| | - Juan Dai
- Wuhan centers for Disease Prevention and Control, China
| | - Xiaofan Shi
- Qinghai centers for Disease Prevention and Control, China
| | - Ruixue Zhao
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, China
| | | | - Rui Li
- Central China Normal University, China
| | - Chao Xia
- Ezhou centers for Disease Prevention and Control, China
| | - Ling Zhang
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, China
| | - Ting Zhou
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, China
| | - Huaiji Wang
- Wuhan centers for Disease Prevention and Control, China.
| | - Yuqin Shi
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, China.
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Gasparoli L, Virely C, Tsakaneli A, Che N, Edwards D, Bartram J, Hubank M, Pal D, Heidenreich O, Martens JHA, De Boer J, Williams O. Susceptibility of pediatric acute lymphoblastic leukemia to STAT3 inhibition depends on p53 induction. Haematologica 2024; 109:1069-1081. [PMID: 37794795 PMCID: PMC10985450 DOI: 10.3324/haematol.2023.283613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 09/27/2023] [Indexed: 10/06/2023] Open
Abstract
Advances in the clinical management of pediatric B-cell acute lymphoblastic leukemia (B-ALL) have dramatically improved outcomes for this disease. However, relapsed and high-risk disease still contribute to significant numbers of treatment failures. Development of new, broad range therapies is urgently needed for these cases. We previously reported the susceptibility of ETV6-RUNX1+ pediatric B-ALL to inhibition of signal transducer and activator of transcription 3 (STAT3) activity. In the present study, we demonstrate that pharmacological or genetic inhibition of STAT3 results in p53 induction and that CRISPR-mediated TP53 knockout substantially reverses susceptibility to STAT3 inhibition. Furthermore, we demonstrate that sensitivity to STAT3 inhibition in patient-derived xenograft (PDX) B-ALL samples is not restricted to any particular disease subtype, but rather depends on TP53 status, the only resistant samples being TP53 mutant. Induction of p53 following STAT3 inhibition is not directly dependent on MDM2 but correlates with degradation of MDM4. As such, STAT3 inhibition exhibits synergistic in vitro and in vivo anti-leukemia activity when combined with MDM2 inhibition. Taken together with the relatively low frequency of TP53 mutations in this disease, these data support the future development of combined STAT3/ MDM2 inhibition in the therapy of refractory and relapsed pediatric B-ALL.
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Affiliation(s)
- Luca Gasparoli
- Cancer Section, Developmental Biology and Cancer Department, UCL Great Ormond Street Institute of Child Health, London
| | - Clemence Virely
- Cancer Section, Developmental Biology and Cancer Department, UCL Great Ormond Street Institute of Child Health, London
| | - Alexia Tsakaneli
- Cancer Section, Developmental Biology and Cancer Department, UCL Great Ormond Street Institute of Child Health, London
| | - Noelia Che
- Cancer Section, Developmental Biology and Cancer Department, UCL Great Ormond Street Institute of Child Health, London
| | - Darren Edwards
- Department of Paediatric Haematology, Great Ormond Street Hospital for Children, London
| | - Jack Bartram
- Department of Paediatric Haematology, Great Ormond Street Hospital for Children, London
| | - Michael Hubank
- Centre for Molecular Pathology, The Royal Marsden, Sutton
| | - Deepali Pal
- Department of Applied Sciences, Northumbria University, Newcastle upon Tyne
| | | | - Joost H A Martens
- Department of Molecular Biology, Faculty of Science, Radboud Institute for Molecular Life Sciences, Radboud University, Nijmegen
| | - Jasper De Boer
- Cancer Section, Developmental Biology and Cancer Department, UCL Great Ormond Street Institute of Child Health, London
| | - Owen Williams
- Cancer Section, Developmental Biology and Cancer Department, UCL Great Ormond Street Institute of Child Health, London.
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Wei L, Li S, Ma Y, Ye S, Yuan Y, Zeng Y, Raza T, Xiao F. Curcumin attenuates diphenyl phosphate-induced apoptosis in GC-2spd(ts) cells through activated autophagy via the Nrf2/P53 pathway. Environ Toxicol 2024; 39:2032-2042. [PMID: 38095090 DOI: 10.1002/tox.24092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/19/2023] [Accepted: 12/01/2023] [Indexed: 03/09/2024]
Abstract
Diphenyl phosphate (DPhP) is one of the frequently used derivatives of aryl phosphate esters and is used as a plasticizer in industrial production. Like other plasticizers, DPhP is not chemically bound and can easily escape into the environment, thereby affecting human health. DPhP has been associated with developmental toxicity, reproductive toxicity, neurodevelopmental toxicity, and interference with thyroid homeostasis. However, understanding of the underlying mechanism of DPhP on the reproductive toxicity of GC-2spd(ts) cells remains limited. For the first time, we investigated the effect of DPhP on GC-2spd(ts) cell apoptosis. By decreasing nuclear factor erythroid-derived 2-related factor (Nrf2)/p53 signaling, DPhP inhibited autophagy and promoted apoptosis. DPhP reduced total antioxidant capacity and nuclear Nrf2 and its downstream target gene expression. In addition, we investigated the protective effects of Curcumin (Cur) against DPhP toxicity. Cur attenuated the DPhP-induced rise in p53 expression while increasing Nrf2 expression. Cur inhibited DPhP-induced apoptosis in GC-2spd(ts) cells by activating autophagy via Nrf2/p53 signaling. In conclusion, our study provides new insights into the reproductive toxicity hazards of DPhP and demonstrates that Cur is an important therapeutic agent for alleviating DPhP-induced reproductive toxicity by regulating Nrf2/p53 signaling.
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Affiliation(s)
- Lai Wei
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, People's Republic of China
| | - Siwen Li
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, People's Republic of China
| | - Yu Ma
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, People's Republic of China
| | - Shuzi Ye
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, People's Republic of China
| | - Yu Yuan
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, People's Republic of China
| | - Yuan Zeng
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, People's Republic of China
| | - Tausif Raza
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, People's Republic of China
| | - Fang Xiao
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, People's Republic of China
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Li Y, Yu P, Gao Y, Ma Z, Wang H, Long Y, Ma Z, Liu R. Effects of the combination of Epimedii Folium and Ligustri Lucidi Fructus on apoptosis and autophagy in SOP rats and osteoblasts via PI3K/AKT/mTOR pathway. Biomed Pharmacother 2024; 173:116346. [PMID: 38428312 DOI: 10.1016/j.biopha.2024.116346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/13/2024] [Accepted: 02/23/2024] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND This study aimed to investigate the effects of the combination of Epimedii Folium (EF) and Ligustri Lucidi Fructus (LLF) on regulating apoptosis and autophagy in senile osteoporosis (SOP) rats. METHODS Firstly, we identified the components in the decoction and drug-containing serum of EL (EF&LLF) by Ultra performance liquid chromatography-quadrupole-time of flight-mass spectrometry (UPLC-Q-TOF-MS). Secondly, SOP rats were treated with EF, LLF, EL and caltrate to evaluate the advantages of EL. Finally, H2O2-, chloroquine-, and MHY1485-induced osteoblasts were treated with different doses of EL to reveal the molecular mechanism of EL. We detected bone microstructure, oxidative stress levels, ALP activity and the expressions of Bax, Bcl-2, caspase3, P53, Beclin-1, p-PI3K, PI3K, p-Akt, Akt, p-mTOR, mTOR, and LC3 in vivo and in vitro. RESULTS 36 compounds in EL decoction and 23 in EL-containing serum were identified, including flavonoids, iridoid terpenoids, phenylethanoid glycosides, polyols and triterpenoids. EL could inhibit apoptosis activity and increase ALP activity. In SOP rats and chloroquine-inhibited osteoblasts, EL could improve bone tissue microstructure and osteoblasts functions by upregulating Bcl-2, Beclin1, and LC3-II/LC3-I, while downregulating p53 in all treatment groups. In H2O2-induced osteoblasts, EL could upregulate the protein and mRNA expressions of Bcl-2 while downregulate LC3-II/LC3-I, p53 and Beclin1. Besides, EL was able to down-regulate PI3K/AKT/mTOR pathway which activated in SOP rats and MHY1485-induced osteoblasts. CONCLUSIONS These findings demonstrate that EL with bone protective effects on SOP rats by regulating autophagy and apoptosis via PI3K/Akt/mTOR signaling pathway, which might be an alternative medicine for the treatment of SOP.
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Affiliation(s)
- Yuman Li
- School of Traditional Chinese Medicine, Capital Medical University, No.10 Xitoutiao, Youanmenwai, Fengtai District, Beijing 100069, China
| | - Ping Yu
- School of Traditional Chinese Medicine, Capital Medical University, No.10 Xitoutiao, Youanmenwai, Fengtai District, Beijing 100069, China
| | - Yingying Gao
- School of Traditional Chinese Medicine, Capital Medical University, No.10 Xitoutiao, Youanmenwai, Fengtai District, Beijing 100069, China
| | - Zitong Ma
- School of Traditional Chinese Medicine, Capital Medical University, No.10 Xitoutiao, Youanmenwai, Fengtai District, Beijing 100069, China
| | - Han Wang
- School of Traditional Chinese Medicine, Capital Medical University, No.10 Xitoutiao, Youanmenwai, Fengtai District, Beijing 100069, China
| | - Yuting Long
- School of Traditional Chinese Medicine, Capital Medical University, No.10 Xitoutiao, Youanmenwai, Fengtai District, Beijing 100069, China
| | - Zaina Ma
- School of Traditional Chinese Medicine, Capital Medical University, No.10 Xitoutiao, Youanmenwai, Fengtai District, Beijing 100069, China
| | - Renhui Liu
- School of Traditional Chinese Medicine, Capital Medical University, No.10 Xitoutiao, Youanmenwai, Fengtai District, Beijing 100069, China.
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49
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Cheng Y, Zhang M, Xu R, Fu L, Xue M, Xu C, Tang C, Fang T, Liu X, Sun B, Chen L. p53 accelerates endothelial cell senescence in diabetic retinopathy by enhancing FoxO3a ubiquitylation and degradation via UBE2L6. Exp Gerontol 2024; 188:112391. [PMID: 38437929 DOI: 10.1016/j.exger.2024.112391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 02/25/2024] [Accepted: 03/01/2024] [Indexed: 03/06/2024]
Abstract
Diabetic retinopathy (DR) is the most common ocular fundus disease in diabetic patients. Chronic hyperglycemia not only promotes the development of diabetes and its complications, but also aggravates the occurrence of senescence. Previous studies have shown that DR is associated with senescence, but the specific mechanism has not been fully elucidated. Here, we first detected the differentially expressed genes (DEGs) and cellular senescence level of db/db mouse retinas by bulk RNA sequencing. Then, we used single-cell sequencing (scRNA-seq) to identify the main cell types in the retina and analyzed the DEGs in each cluster. We demonstrated that p53 expression was significantly increased in retinal endothelial cell cluster of db/db mice. Inhibition of p53 can reduce the expression of SA-β-Gal and the senescence-associated secretory phenotype (SASP) in HRMECs. Finally, we found that p53 can promote FoxO3a ubiquitination and degradation by increasing the expression of the ubiquitin-conjugating enzyme UBE2L6. Overall, our results demonstrate that p53 can accelerate the senescence process of endothelial cells and aggravate the development of DR. These data reveal new targets and insights that may be used to treat DR.
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Affiliation(s)
- Ying Cheng
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - Man Zhang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - Rong Xu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - Lingli Fu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - Mei Xue
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - Chaofei Xu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - Chao Tang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - Ting Fang
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - Xiaohuan Liu
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - Bei Sun
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China.
| | - Liming Chen
- NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China.
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50
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He X, Cantrell AC, Williams QA, Gu W, Chen Y, Chen JX, Zeng H. p53 Acetylation Exerts Critical Roles in Pressure Overload-Induced Coronary Microvascular Dysfunction and Heart Failure in Mice. Arterioscler Thromb Vasc Biol 2024; 44:826-842. [PMID: 38328937 PMCID: PMC10978286 DOI: 10.1161/atvbaha.123.319601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 01/25/2024] [Indexed: 02/09/2024]
Abstract
BACKGROUND Coronary microvascular dysfunction (CMD) has been shown to contribute to cardiac hypertrophy and heart failure (HF) with preserved ejection fraction. At this point, there are no proven treatments for CMD. METHODS We have shown that histone acetylation may play a critical role in the regulation of CMD. By using a mouse model that replaces lysine with arginine at residues K98, K117, K161, and K162R of p53 (p534KR), preventing acetylation at these sites, we test the hypothesis that acetylation-deficient p534KR could improve CMD and prevent the progression of hypertensive cardiac hypertrophy and HF. Wild-type and p534KR mice were subjected to pressure overload by transverse aortic constriction to induce cardiac hypertrophy and HF. RESULTS Echocardiography measurements revealed improved cardiac function together with a reduction of apoptosis and fibrosis in p534KR mice. Importantly, myocardial capillary density and coronary flow reserve were significantly improved in p534KR mice. Moreover, p534KR upregulated the expression of cardiac glycolytic enzymes and Gluts (glucose transporters), as well as the level of fructose-2,6-biphosphate; increased PFK-1 (phosphofructokinase 1) activity; and attenuated cardiac hypertrophy. These changes were accompanied by increased expression of HIF-1α (hypoxia-inducible factor-1α) and proangiogenic growth factors. Additionally, the levels of SERCA-2 were significantly upregulated in sham p534KR mice, as well as in p534KR mice after transverse aortic constriction. In vitro, p534KR significantly improved endothelial cell glycolytic function and mitochondrial respiration and enhanced endothelial cell proliferation and angiogenesis. Similarly, acetylation-deficient p534KR significantly improved coronary flow reserve and rescued cardiac dysfunction in SIRT3 (sirtuin 3) knockout mice. CONCLUSIONS Our data reveal the importance of p53 acetylation in coronary microvascular function, cardiac function, and remodeling and may provide a promising approach to improve hypertension-induced CMD and to prevent the transition of cardiac hypertrophy to HF.
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Affiliation(s)
- Xiaochen He
- Department of Pharmacology & Toxicology, University of Mississippi Medical Center, School of Medicine, Jackson, MS, 39216, USA
| | - Aubrey C Cantrell
- Department of Pharmacology & Toxicology, University of Mississippi Medical Center, School of Medicine, Jackson, MS, 39216, USA
| | - Quinesha A Williams
- Department of Pharmacology & Toxicology, University of Mississippi Medical Center, School of Medicine, Jackson, MS, 39216, USA
| | - Wei Gu
- Department of Pathology & Cell Biology, Columbia University, Institute for Cancer Genetics, New York, NY 10032, USA
| | - Yingjie Chen
- Department of Physiology & Biophysics, University of Mississippi Medical Center, School of Medicine, Jackson, MS, 39216, USA
| | - Jian-Xiong Chen
- Department of Pharmacology & Toxicology, University of Mississippi Medical Center, School of Medicine, Jackson, MS, 39216, USA
| | - Heng Zeng
- Department of Pharmacology & Toxicology, University of Mississippi Medical Center, School of Medicine, Jackson, MS, 39216, USA
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