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Zhang X, Mei C, Liang Z, Zhi Y, Xu H, Wang H, Dong H. Homoharringtonine induces apoptosis of mammary carcinoma cells by inhibiting the AKT/mTOR signaling pathway. Vet Comp Oncol 2024; 22:57-69. [PMID: 38081660 DOI: 10.1111/vco.12948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/23/2023] [Accepted: 11/24/2023] [Indexed: 01/11/2024]
Abstract
Mammary tumour is the most common type of tumour in dogs, especially in unneutered female dogs. Homoharringtonine (HHT) is a natural alkaloid that can be used to treat various types of human tumour. However, the inhibitory effect and mechanism of HHT on canine mammary carcinomas (CMC) remain unclear. This study aimed to evaluate the inhibitory effect of HHT on CMC in vitro and determine its underlying molecular mechanism. The effects of HHT on the cytotoxicity of CMC U27 cells were evaluated by the cell counting kit-8, wound healing, and Transwell assays. HHT-induced apoptosis of U27 cells was detected by JC-1 and terminal deoxynucleotidyl transferase dUTP nick end labelling (TUNEL) assay. Moreover, the gene expression of B-cell lymphoma-2 (Bcl-2) and Bcl-2 associated X protein (Bax) were analysed using quantitative reverse transcription-polymerase chain reaction (RT-qPCR), and the protein expression of protein kinase B/mammalian target of rapamycin (AKT/mTOR) and mitochondrial apoptosis proteins were determined by western blotting. Furthermore, mammary tumour-bearing mouse models were established using 4T1 cells to evaluate the therapeutic effect of HHT. It was found that HHT could significantly down-regulated the protein expression of p-AKT, p-mTOR, and Bcl-2, and up-regulated the protein expression of P53, Bax, cleaved caspase-3, and cleaved caspase-9. In addition, HHT significantly suppressed both tumour volume and mass in mammary tumour mice. In conclusion, HHT damages CMC cells by inhibiting the AKT/mTOR signalling pathway and inducing mitochondrial apoptosis. Such findings lay a theoretical foundation for the clinical treatment of CMC and provide more options for clinical medication.
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Affiliation(s)
- Xue Zhang
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, China
- Beijing Traditional Chinese Veterinary Engineering Center, Beijing University of Agriculture, Beijing, China
| | - Chen Mei
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Zhixuan Liang
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, China
- Beijing Traditional Chinese Veterinary Engineering Center, Beijing University of Agriculture, Beijing, China
| | - Yan Zhi
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, China
- Beijing Traditional Chinese Veterinary Engineering Center, Beijing University of Agriculture, Beijing, China
| | - Haojun Xu
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Hongjun Wang
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Hong Dong
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, China
- Beijing Traditional Chinese Veterinary Engineering Center, Beijing University of Agriculture, Beijing, China
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Li L, Li M, Zheng J, Li Z, Chen X. Knocking down NSUN5 inhibits the development of clear cell renal cell carcinoma by inhibiting the p53 pathway. Aging (Albany NY) 2023; 15:204761. [PMID: 37263638 DOI: 10.18632/aging.204761] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 05/17/2023] [Indexed: 06/03/2023]
Abstract
Clear cell renal cell carcinoma (ccRCC) is the most common solid renal tumor. NSUN5, a gene encoding cytosine-5 RNA methyltransferase, has rarely been reported associated with cancer. A bioinformatics analysis revealed that NSUN5 was overexpressed in ccRCC. Gene Ontology and gene set variation analyses showed that NSUN5 was associated with tumor immunity in ccRCC. The effect of immunosuppressive treatment was superior in the low-risk group compared to the high-risk group, and higher stromal score in the high-risk group relative to the low-risk group. A drug sensitivity analysis revealed that the high-risk group was more sensitive to 5-fluorouracil, mitomycin C, methotrexate, and 17-AAG, whereas the low-risk group was more sensitive to crizotinib, sorafenib, foretinib, and ivozanib. NSUN5 knockout decreased ccRCC cell proliferation. The migration speed and number of invasive cells further decreased. The percentage of apoptotic cells increased. In NSUN5-knockout cells, the levels of BAX, caspase-8, caspase-9, and p53 increased significantly, whereas those of Bcl2, CCND1, CCND3, and MMP9 decreased significantly. NSUN5 is highly expressed in ccRCC and inhibits cancer cell invasion, proliferation, and migration while promoting apoptosis by activating the p53 signaling pathway. This study provides insights into the mechanisms of action of NSUN5 in urological tumors and may contribute to improving ccRCC treatment options.
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Affiliation(s)
- Lei Li
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang 110000, Liaoning, People’s Republic of China
| | - Mingyang Li
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang 110000, Liaoning, People’s Republic of China
| | - Jianyi Zheng
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang 110000, Liaoning, People’s Republic of China
| | - Zeyu Li
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang 110000, Liaoning, People’s Republic of China
| | - Xiaonan Chen
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang 110000, Liaoning, People’s Republic of China
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Mishra S, Tripathy SK, Paul D, Laha P, Santra MK, Patra S. Asymmetrically Coordinated Heterodimetallic Ir-Ru System: Synthesis, Computational, and Anticancer Aspects. Inorg Chem 2023; 62:7003-7013. [PMID: 37097171 DOI: 10.1021/acs.inorgchem.3c00272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
Abstract
Herein, we present an unprecedented formation of a heterodinuclear complex [{(ppy)2IrIII}(μ-phpy){RuII(tpy)}](ClO4)2 {[1](ClO4)2} using terpyridyl/phenylpyridine as ancillary ligands and asymmetric phpy as a bridging ligand. The asymmetric binding mode (N∧N-∩-N∧N∧C-) of the phpy ligand in {[1](ClO4)2} is confirmed by 1H, 13C, 1H-1H correlated spectroscopy (COSY), high-resolution mass spectrum (HRMS), single-crystal X-ray crystallography techniques, and solution conductivity measurements. Theoretical investigation suggests that the highest occupied molecular orbital (HOMO) and the least unoccupied molecular orbital (LUMO) of [1]2+ are located on iridium/ppy and phpy, respectively. The complex displays a broad low energy charge transfer (CT) band within 450-575 nm. The time-dependent density functional theory (TDDFT) analysis suggests this as a mixture of metal-to-ligand charge transfer (MLCT) and ligand-to-ligand charge transfer (LLCT), where both ruthenium, iridium, and ligands are involved. Complex {[1](ClO4)2} exhibits RuIIIrIII/RuIIIIrIII- and RuIIIIrIII/RuIIIIrIV-based oxidative couples at 0.83 and 1.39 V, respectively. The complex shows anticancer activity and selectivity toward human breast cancer cells (IC50; MCF-7: 9.3 ± 1.2 μM, and MDA-MB-231: 8.6 ± 1.2 μM) over normal breast cells (MCF 10A: IC50 ≈ 21 ± 1.3 μM). The Western blot analysis and fluorescence microscopy images suggest that combined apoptosis and autophagy are responsible for cancer cell death.
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Affiliation(s)
- Saumyaranjan Mishra
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Jatni 752050, Odisha, India
| | - Suman Kumar Tripathy
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Jatni 752050, Odisha, India
| | - Debasish Paul
- National Centre for Cell Science, NCCS Complex, Pune University Campus Ganeshkhind, Pune 411007, Maharashtra, India
| | - Paltan Laha
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Jatni 752050, Odisha, India
| | - Manas Kumar Santra
- National Centre for Cell Science, NCCS Complex, Pune University Campus Ganeshkhind, Pune 411007, Maharashtra, India
| | - Srikanta Patra
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Jatni 752050, Odisha, India
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Ginsenoside Rh2 Induces HeLa Apoptosis through Upregulating Endoplasmic Reticulum Stress-Related and Downstream Apoptotic Gene Expression. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227865. [PMID: 36431966 PMCID: PMC9699401 DOI: 10.3390/molecules27227865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/10/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022]
Abstract
Cervical cancer is a common gynecological malignancy afflicting women all over the world. Ginsenoside Rh2 (GRh2), especially 20(S)-GRh2, is a biologically active component in the natural plant ginseng, which can exhibit anticancer effects. Here, we aimed to investigate the effect of 20(S)-GRh2 on cervical cancer and elucidate the underlying mechanism through RNA-seq. In this study, the CCK-8 assay showed that 20(S)-GRh2 inhibited HeLa cell viability in a time- and dose-dependent manner. Caspase 3 activity and Annexin V staining results showed that 20(S)-GRh2 induced apoptosis of HeLa cells. Gene function enrichment analysis revealed that the biological process gene ontology (GO) terms were associated with the apoptotic signaling pathway. Biological process GO terms' similarity network indicated that apoptosis might be from endoplasmic reticulum stress (ERs). Kyoto Encyclopedia of Genes and Genomes enrichment analysis revealed that 20(S)-GRh2 primarily modulates apoptosis pathway genes. Combined protein-protein interaction network, hub gene screening, and qPCR validation data showed that ERs-related genes (ATF4 and DDIT3) and the downstream apoptotic genes (JUN, FOS, BBC3, and PMAIP1) were potential novel targets of 20(S)-GRh2-inducing cervical cancer cell apoptosis. Differential transcript usage analysis indicated that DDIT3 is also a differential transcript and its usage of the isoform (ENST00000552740.5) was reduced by 20(S)-GRh2. Molecular docking suggested that 20(S)-GRh2 binds to the targets (ATF4, DDIT3, JUN, FOS, BBC3, and PMAIP1) with high affinity. In conclusion, our findings indicated that 20(S)-GRh2 might promote ERs-related apoptosis of cervical cancer cells by regulating the DDIT3-based targets' signal pathway. The role of 20(S)-GRh2 at the transcriptome level provides novel targets and evidence for the treatment of cervical cancer.
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Wu CZ, Gao MJ, Chen J, Sun XL, Zhang KY, Dai YQ, Ma T, Li HM, Zhang YX. Isobavachalcone Induces Multiple Cell Death in Human Triple-Negative Breast Cancer MDA-MB-231 Cells. Molecules 2022; 27:6787. [PMID: 36296386 PMCID: PMC9612085 DOI: 10.3390/molecules27206787] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 10/06/2022] [Accepted: 10/08/2022] [Indexed: 10/29/2023] Open
Abstract
Standardized treatment guidelines and effective drugs are not available for human triple-negative breast cancer (TNBC). Many efforts have recently been exerted to investigate the efficacy of natural compounds as anticancer agents owing to their low toxicity. However, no study has examined the effects of isobavachalcone (IBC) on the programmed cell death (PCD) of human triple-negative breast MDA-MB-231 cancer cells. In this study, IBC substantially inhibited the proliferation of MDA-MB-231 cells in concentration- and time-dependent manners. In addition, we found that IBC induced multiple cell death processes, such as apoptosis, necroptosis, and autophagy in MDA-MB-231 cells. The initial mechanism of IBC-mediated cell death in MDA-MB-231 cells involves the downregulation of Akt and p-Akt-473, an increase in the Bax/Bcl-2 ratio, and cleaved caspases-3 induced apoptosis; the upregulation of RIP3, p-RIP3 and MLKL induced necroptosis; as well as a simultaneous increase in LC3-II/I ratio induced autophagy. In addition, we observed that IBC induced mitochondrial dysfunction, thereby decreasing cellular ATP levels and increasing reactive oxygen species accumulation to induce PCD. These results suggest that IBC is a promising lead compound with anti-TNBC activity.
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Affiliation(s)
- Cheng-Zhu Wu
- School of Pharmacy, Bengbu Medical College, 2600 Donghai Road, Bengbu 233030, China
- Anhui Province Biochemical Pharmaceutical Engineering Technology Research Center, Bengbu 233030, China
| | - Mei-Jia Gao
- School of Pharmacy, Bengbu Medical College, 2600 Donghai Road, Bengbu 233030, China
| | - Jie Chen
- School of Pharmacy, Bengbu Medical College, 2600 Donghai Road, Bengbu 233030, China
| | - Xiao-Long Sun
- School of Pharmacy, Bengbu Medical College, 2600 Donghai Road, Bengbu 233030, China
| | - Ke-Yi Zhang
- School of Pharmacy, Bengbu Medical College, 2600 Donghai Road, Bengbu 233030, China
| | - Yi-Qun Dai
- School of Pharmacy, Bengbu Medical College, 2600 Donghai Road, Bengbu 233030, China
| | - Tao Ma
- School of Pharmacy, Bengbu Medical College, 2600 Donghai Road, Bengbu 233030, China
| | - Hong-Mei Li
- School of Pharmacy, Bengbu Medical College, 2600 Donghai Road, Bengbu 233030, China
- Anhui Province Biochemical Pharmaceutical Engineering Technology Research Center, Bengbu 233030, China
| | - Yu-Xin Zhang
- Anhui Province Biochemical Pharmaceutical Engineering Technology Research Center, Bengbu 233030, China
- School of Laboratory Medicine, Bengbu Medical College, 2600 Donghai Road, Bengbu 233030, China
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Sun R, Lim SO. FBXL20-mediated ubiquitination triggers the proteasomal degradation of 4-1BB. FEBS J 2022; 289:4549-4563. [PMID: 35112462 DOI: 10.1111/febs.16383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 12/27/2021] [Accepted: 02/01/2022] [Indexed: 12/16/2022]
Abstract
4-1BB [tumor necrosis factor receptor superfamily (TNFRSF9), CD137) is a critical immune stimulator that sustains T cell activity and antitumor immune response. The strategy to eliminate cancers by agonistically targeting 4-1BB is under clinical investigation. As a protein expressed in an inducible manner, 4-1BB is under tight control on both transcription and translation levels to maintain its homeostasis. So far, the mechanisms underlying the transcriptional activation of 4-1BB have been well-interpreted; however, it remains inexplicit how 4-1BB is regulated on the protein level. In this study, we presented experimental evidence supporting that 4-1BB, especially the heavily N-glycosylated (mature) form, is polyubiquitinated and subjected to the ubiquitin-proteasomal system for degradation. By performing proximity-dependent biotin identification screening coupled with biochemical assays, we identified that F-box/LRR-repeat protein 20 acts as the E3 ligase that promotes the polyubiquitination of 4-1BB at the intracellular domain. Our data provided mechanistic insight into 4-1BB regulation on the protein level by unmasking, for the first time, a posttranslational mechanism governing 4-1BB abundance in cells. The findings of this study could potentially guide the development of 4-1BB-targeted therapy for cancers as well as other immune disorders.
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Affiliation(s)
- Ruoxuan Sun
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN, USA
| | - Seung-Oe Lim
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN, USA.,Purdue Institute of Drug Discovery, Purdue University, West Lafayette, IN, USA.,Purdue Center for Cancer Research, Purdue University, West Lafayette, IN, USA
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