1
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Kang P, Wang Y, Chen J, Chang Y, Zhang W, Cui T, Yi X, Li S, Li C. TRPM2-dependent autophagy inhibition exacerbates oxidative stress-induced CXCL16 secretion by keratinocytes in vitiligo. J Pathol 2024; 262:441-453. [PMID: 38186269 DOI: 10.1002/path.6247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/20/2023] [Accepted: 12/01/2023] [Indexed: 01/09/2024]
Abstract
Vitiligo is a depigmented skin disease due to the destruction of melanocytes. Under oxidative stress, keratinocyte-derived chemokine C-X-C motif ligand 16 (CXCL16) plays a critical role in recruiting CD8+ T cells, which kill melanocytes. Autophagy serves as a protective cell survival mechanism and impairment of autophagy has been linked to increased secretion of the proinflammatory cytokines. However, the role of autophagy in the secretion of CXCL16 under oxidative stress has not been investigated. Herein, we initially found that autophagy was suppressed in both keratinocytes of vitiligo lesions and keratinocytes exposed to oxidative stress in vitro. Autophagy inhibition also promoted CXCL16 secretion. Furthermore, upregulated transient receptor potential cation channel subfamily M member 2 (TRPM2) functioned as an upstream oxidative stress sensor to inhibit autophagy. Moreover, TRPM2-mediated Ca2+ influx activated calpain to shear autophagy related 5 (Atg5) and Atg12-Atg5 conjugate formation was blocked to inhibit autophagy under oxidative stress. More importantly, Atg5 downregulation enhanced the binding of interferon regulatory factor 3 (IRF3) to the CXCL16 promoter region by activating Tank-binding kinase 1 (TBK1), thus promoting CXCL16 secretion. These findings suggested that TRPM2-restrained autophagy promotes CXCL16 secretion via the Atg5-TBK1-IRF3 signaling pathway under oxidative stress. Inhibition of TRPM2 may serve as a potential target for the treatment of vitiligo. © 2024 The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Pan Kang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Yinghan Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Jianru Chen
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Yuqian Chang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Weigang Zhang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Tingting Cui
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Xiuli Yi
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Shuli Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Chunying Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, PR China
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2
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Wang Q, Liu C. Mitophagy plays a "double-edged sword" role in the radiosensitivity of cancer cells. J Cancer Res Clin Oncol 2024; 150:14. [PMID: 38238458 PMCID: PMC10796536 DOI: 10.1007/s00432-023-05515-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 12/13/2023] [Indexed: 01/22/2024]
Abstract
Mitochondria are organelles with double-membrane structure of inner and outer membrane, which provides main energy support for cell growth and metabolism. Reactive oxygen species (ROS) mainly comes from mitochondrial and can cause irreversible damage to cells under oxidative stress. Thus, mitochondrial homeostasis is the basis for maintaining the normal physiological function of cells and mitophagy plays a pivotal role in the maintenance of mitochondrial homeostasis. At present, to enhance the sensitivity of cancer cells to radiotherapy and chemotherapy by regulating mitochondria has increasingly become a hot spot of cancer therapy. It is particularly important to study the effect of ionizing radiation (IR) on mitochondria and the role of mitophagy in the radiosensitivity of cancer cells. Most of the existing reviews have focused on mitophagy-related molecules or pathways and the impact of mitophagy on diseases. In this review, we mainly focus on discussing the relationship between mitophagy and radiosensitivity of cancer cells around mitochondria and IR.
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Affiliation(s)
- Qian Wang
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730030, Gansu, China
| | - Chengxin Liu
- Shandong Academy of Medical Sciences, Shandong Cancer Hospital and Institute, Shandong First Medical University, Jinan, 250117, Shandong, China.
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3
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Liu M, Wang Y, Teng F, Mai X, Wang X, Su MY, Stjepanovic G. Structure of the DDB1-AMBRA1 E3 ligase receptor complex linked to cell cycle regulation. Nat Commun 2023; 14:7631. [PMID: 37993427 PMCID: PMC10665379 DOI: 10.1038/s41467-023-43174-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 11/02/2023] [Indexed: 11/24/2023] Open
Abstract
AMBRA1 is a tumor suppressor protein that functions as a substrate receptor of the ubiquitin conjugation system with roles in autophagy and the cell cycle regulatory network. The intrinsic disorder of AMBRA1 has thus far precluded its structural determination. To solve this problem, we analyzed the dynamics of AMBRA1 using hydrogen deuterium exchange mass spectrometry (HDX-MS). The HDX results indicated that AMBRA1 is a highly flexible protein and can be stabilized upon interaction with DDB1, the adaptor of the Cullin4A/B E3 ligase. Here, we present the cryo-EM structure of AMBRA1 in complex with DDB1 at 3.08 Å resolution. The structure shows that parts of the N- and C-terminal structural regions in AMBRA1 fold together into the highly dynamic WD40 domain and reveals how DDB1 engages with AMBRA1 to create a binding scaffold for substrate recruitment. The N-terminal helix-loop-helix motif and WD40 domain of AMBRA1 associate with the double-propeller fold of DDB1. We also demonstrate that DDB1 binding-defective AMBRA1 mutants prevent ubiquitination of the substrate Cyclin D1 in vitro and increase cell cycle progression. Together, these results provide structural insights into the AMBRA1-ubiquitin ligase complex and suggest a mechanism by which AMBRA1 acts as a hub involved in various physiological processes.
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Affiliation(s)
- Ming Liu
- Kobilka Institute of Innovative Drug Discovery, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Shenzhen, 518172, China
| | - Yang Wang
- Kobilka Institute of Innovative Drug Discovery, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Shenzhen, 518172, China
| | - Fei Teng
- Kobilka Institute of Innovative Drug Discovery, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Shenzhen, 518172, China
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xinyi Mai
- Kobilka Institute of Innovative Drug Discovery, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Shenzhen, 518172, China
| | - Xi Wang
- Kobilka Institute of Innovative Drug Discovery, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Shenzhen, 518172, China
| | - Ming-Yuan Su
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Shenzhen, 518055, China.
- Key University Laboratory of Metabolism and Health of Guangdong, Southern University of Science and Technology, Shenzhen, 518055, China.
- Institute for Biological Electron Microscopy, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Goran Stjepanovic
- Kobilka Institute of Innovative Drug Discovery, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Shenzhen, 518172, China.
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4
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Li J, Zhou J, Zhao N, Li Z, Xu X, Tang J, Li Z, Zhang X, Wu Y, Li Q, Zhang Q, Jiang J. EM-2, a natural sesquiterpene lactone from Elephantopus mollis H.B.K., enhanced the sensitivity of breast cancer cells to epirubicin by blocking protective autophagy. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 116:154878. [PMID: 37224776 DOI: 10.1016/j.phymed.2023.154878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 05/05/2023] [Accepted: 05/10/2023] [Indexed: 05/26/2023]
Abstract
BACKGROUND EM-2, a natural sesquiterpene lactone isolated from Elephantopus mollis H.B.K., showed a good anti-breast cancer effect when combined with epirubicin (EPI). However, its synergistic sensitization mechanism remains unclear. PURPOSE This study aimed to determine the therapeutic effect and possible synergistic mechanism of EM-2 with EPI in vivo and in vitro and to provide an experimental basis for the treatment of human breast cancer. METHODS Cell proliferation was measured with MTT and colony formation assays. Apoptosis and reactive oxygen species (ROS) levels were examined through flow cytometry, and the expression levels of proteins related to apoptosis, autophagy, endoplasmic reticulum stress, and DNA damage were detected through Western blot analysis. Moreover, the caspase inhibitor Z-VAD-FMK, autophagy inhibitors bafilomycin A1 and chloroquine, ER stress inhibitor 4-phenylbutyric acid, and ROS scavenger N-acetyl cysteine were applied to verify signaling pathways. Breast cancer cell lines were used to evaluate the antitumor functions of EM-2 and EPI in vitro and in vivo. RESULTS We demonstrated that in MDA-MB-231 and SKBR3 cells, the IC50 of EPI combined with EM-2 (IC20) was 37.909 and 33.889 times lower than that of EPI alone, respectively. Further study verified that in EPI-resistant lines (MDA-MB-231/EPI), the IC50 of EPI combined with EM-2 (IC20) was 26.305 times lower than that of EPI alone. Mechanistically, EM-2 could reverse the protective effect of EPI against autophagy in SKBR3 and MDA-MB-231 cells. EM-2 and EPI could trigger ER stress. When EM-2 and EPI were used in combination, ER stress was continuously activated, and ER stress-mediated apoptosis was induced. Meanwhile, EM-2 combined with EPI promoted DNA damage then induced apoptosis. In vivo, the volume of breast cancer xenografts in the combination group was smaller than that in the control, EM-2, and EPI groups. Immunohistochemical experiments demonstrated that the combination of EM-2 and EPI could block autophagy and promote ER stress in vivo. CONCLUSION EM-2 enhances the sensitivity of MDA-MB-231, SKBR3, and EPI-resistant cells to EPI.
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Affiliation(s)
- Jiamin Li
- Department of Breast Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China
| | - Junzhen Zhou
- Department of Breast Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China
| | - Na Zhao
- Department of Biochemistry, Basic Medical College, Jinan University, Guangzhou 510632, China
| | - Zhendong Li
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China
| | - Xinwen Xu
- Department of Breast Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China
| | - Jingjing Tang
- Department of Breast Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China
| | - Ziyu Li
- Department of Biochemistry, Basic Medical College, Jinan University, Guangzhou 510632, China
| | - Xiaoying Zhang
- Department of Pathology, PanYu District Central Hospital, Guangzhou, Guangdong 511400, China
| | - Yuerui Wu
- Department of General Surgery, The Shunde Affiliated Hospital of Jinan University, Foshan, Guangdong 528303, China
| | - Qiang Li
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China
| | - Qing Zhang
- Department of Breast Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China.
| | - Jianwei Jiang
- Department of Biochemistry, Basic Medical College, Jinan University, Guangzhou 510632, China.
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5
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Qin YQ, Liu SY, Lv ML, Sun WL. Ambra1 in cancer: implications for clinical oncology. Apoptosis 2022; 27:720-729. [PMID: 35994214 DOI: 10.1007/s10495-022-01762-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2022] [Indexed: 11/28/2022]
Abstract
Activating molecule in Beclin-1-regulated autophagy protein 1 (Ambra1) is well known to mediate the autophagy process and promote the formation of autophagosomes. In addition, Ambra1 is involved in the execution of apoptosis. A growing number of studies have revealed that this protein modifies the sensitivity of cancer cells to anticancer drugs by controlling the balance between autophagy and apoptosis. In addition, Ambra1 is a key factor in regulating the cell cycle, proliferation, invasion and migration. Therefore, it plays a key role in tumorigenesis and progression. Moreover, Ambra1 is highly expressed in a variety of cancers and is closely related to the prognosis of patients. Thus, it appears that Ambra1 has multiple roles in tumorigenesis and progression, which may have implications for clinical oncology. The present review focuses on recent advances in the study of Ambra1, especially the role of the protein in tumorigenesis, progression and effects on anticancer drug sensitivity.
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Affiliation(s)
- Yan-Qiu Qin
- Department of Medical Oncology, The Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedong Road, Nanning, 530007, Guangxi, People's Republic of China
| | - Si-Yu Liu
- Department of Medical Oncology, The Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedong Road, Nanning, 530007, Guangxi, People's Republic of China
| | - Mei-Ling Lv
- Department of Medical Oncology, The Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedong Road, Nanning, 530007, Guangxi, People's Republic of China
| | - Wei-Liang Sun
- Department of Medical Oncology, The Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedong Road, Nanning, 530007, Guangxi, People's Republic of China.
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6
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Sun WL, He LY, Liang L, Liu SY, Luo J, Lv ML, Cai ZW. Ambra1 regulates apoptosis and chemosensitivity in breast cancer cells through the Akt-FoxO1-Bim pathway. Apoptosis 2022; 27:329-341. [PMID: 35257265 DOI: 10.1007/s10495-022-01718-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2022] [Indexed: 11/24/2022]
Abstract
The sensitivity of cells to chemotherapeutic agents has a major effect on disease outcome in breast cancer patients. Unfortunately, there are numerous factors involved in the regulation of chemosensitivity, and the mechanisms need to be further investigated. Autophagy/Beclin 1 regulator 1 (Ambra1) is a key protein in the crosstalk between autophagy and apoptosis. It controls the switch between these two processes, which determines whether cells survive or die. Induction of apoptosis is the primary mechanism by which most chemotherapeutic drugs eliminate cancer cells. Recently, Ambra1 has been shown to modulate paclitaxel-induced apoptosis in breast cancer cells via the Bim/mitochondrial pathway, thereby modifying the sensitivity of cells to paclitaxel. However, how Ambra1 regulates Bim expression remains unclear. Here, we further confirmed that Bim plays an indispensable role in Ambra1's regulation of apoptosis and chemosensitivity in breast cancer cells. Furthermore, Ambra1 was found to regulate Bim expression at the transcriptional level through the Akt-FoxO1 pathway. Therefore, we propose a novel pathway, Ambra1-Akt-FoxO1-Bim, which regulates apoptosis and chemosensitivity in breast cancer cells. Thus, Ambra1 may represent a potential target for breast cancer treatment.
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Affiliation(s)
- Wei-Liang Sun
- Department of Medical Oncology, the Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedonglu Road, Nanning, 530007, Guangxi, People's Republic of China.
| | - Ling-Yan He
- Department of Medical Oncology, the Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedonglu Road, Nanning, 530007, Guangxi, People's Republic of China
| | - Li Liang
- Department of Medical Oncology, the Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedonglu Road, Nanning, 530007, Guangxi, People's Republic of China
| | - Si-Yu Liu
- Department of Medical Oncology, the Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedonglu Road, Nanning, 530007, Guangxi, People's Republic of China
| | - Jie Luo
- Department of Medical Oncology, the Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedonglu Road, Nanning, 530007, Guangxi, People's Republic of China
| | - Mei-Ling Lv
- Department of Medical Oncology, the Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedonglu Road, Nanning, 530007, Guangxi, People's Republic of China
| | - Zheng-Wen Cai
- Department of Medical Oncology, the Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxuedonglu Road, Nanning, 530007, Guangxi, People's Republic of China
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7
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Remaggi G, Catanzano O, Quaglia F, Elviri L. Alginate Self-Crosslinking Ink for 3D Extrusion-Based Cryoprinting and Application for Epirubicin-HCl Delivery on MCF-7 Cells. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27030882. [PMID: 35164146 PMCID: PMC8839018 DOI: 10.3390/molecules27030882] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/20/2022] [Accepted: 01/25/2022] [Indexed: 11/17/2022]
Abstract
3D-printed hydrogels are particularly advantageous as drug-delivery platforms but their loading with water-soluble active compounds remains a challenge requiring the development of innovative inks. Here, we propose a new 3D extrusion-based approach that, by exploiting the internal gelation of the alginate, avoids the post-printing crosslinking process and allows the loading of epirubicin-HCl (EPI). The critical combinations of alginate, calcium carbonate and d-glucono-δ-lactone (GDL) combined with the scaffold production parameters (extrusion time, temperature, and curing time) were evaluated and discussed. The internal gelation in tandem with 3D extrusion allowed the preparation of alginate hydrogels with a complex shape and good handling properties. The dispersion of epirubicin-HCl in the hydrogel matrix confirmed the potential of this self-crosslinking alginate-based ink for the preparation of 3D-printed drug-delivery platforms. Drug release from 3D-printed hydrogels was monitored, and the cytotoxic activity was tested against MCF-7 cells. Finally, the change in the expression pattern of anti-apoptotic, pro-apoptotic, and autophagy protein markers was monitored by liquid-chromatography tandem-mass-spectrometry after exposure of MCF-7 to the EPI-loaded hydrogels.
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Affiliation(s)
- Giulia Remaggi
- Department of Food and Drug Science, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy;
| | - Ovidio Catanzano
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli, NA, Italy;
| | - Fabiana Quaglia
- Drug Delivery Laboratory, Department of Pharmacy, University of Napoli Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy;
| | - Lisa Elviri
- Department of Food and Drug Science, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy;
- Correspondence:
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8
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Ghafarkhani M, Avci CB, Rahbarghazi R, Karimi A, Sadeghizadeh M, Zarebkohan A, Bani F. Mild hyperthermia induced by gold nanorods acts as a dual-edge blade in the fate of SH-SY5Y cells via autophagy. Sci Rep 2021; 11:23984. [PMID: 34907215 PMCID: PMC8671444 DOI: 10.1038/s41598-021-02697-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 11/22/2021] [Indexed: 02/07/2023] Open
Abstract
Unraveling unwanted side effects of nanotechnology-based therapies like photothermal therapy (PTT) is vital in translational nanomedicine. Herein, we monitored the relationship between autophagic response at the transcriptional level by using a PCR array and tumor formation ability by colony formation assay in the human neuroblastoma cell line, SH-SY5Y, 48 h after being exposed to two different mild hyperthermia (43 and 48 °C) induced by PTT. In this regard, the promotion of apoptosis and autophagy were evaluated using immunofluorescence imaging and flow cytometry analyses. Protein levels of Ki-67, P62, and LC3 were measured using ELISA. Our results showed that of 86 genes associated with autophagy, the expression of 54 genes was changed in response to PTT. Also, we showed that chaperone-mediated autophagy (CMA) and macroautophagy are stimulated in PTT. Importantly, the results of this study also showed significant changes in genes related to the crosstalk between autophagy, dormancy, and metastatic activity of treated cells. Our findings illustrated that PTT enhances the aggressiveness of cancer cells at 43 °C, in contrast to 48 °C by the regulation of autophagy-dependent manner.
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Affiliation(s)
- Maryam Ghafarkhani
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, 516661-4733, Tabriz, Iran
| | - Cigir Biray Avci
- Department of Medical Biology, Medical Faculty, Ege University, Bornova, 35100, Izmir, Turkey
| | - Reza Rahbarghazi
- Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Abbas Karimi
- Department of Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Majid Sadeghizadeh
- Department of Nanobiotechnology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Amir Zarebkohan
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, 516661-4733, Tabriz, Iran.
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Farhad Bani
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, 516661-4733, Tabriz, Iran.
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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9
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Lin Y, Huang C, Gao H, Li X, Lin Q, Zhou S, Huo Z, Huang Y, Liu C, Zhang P. AMBRA1 promotes apoptosis induced by dsRNA and virus through interacting with and stabilizing MAVS. J Cell Sci 2021; 135:273618. [PMID: 34859815 DOI: 10.1242/jcs.258910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 11/11/2021] [Indexed: 10/19/2022] Open
Abstract
Apoptosis is an important cellular response to viral infection. In current study, we identified activating molecule in Beclin1-regulated autophagy protein 1 (AMBRA1) as a positive regulator of apoptosis triggered by dsRNA. Depletion of AMBRA1 by gene editing significantly reduced dsRNA-induced apoptosis, which was largely restored by trans-complementation of AMBRA1. Mechanistically, AMBRA1 interacts with mitochondrial antiviral-signaling protein (MAVS), a key mitochondrial adaptor in the apoptosis pathway induced by dsRNA and viral infection. Further Co-IP analysis demonstrated that the mitochondrial localization of MAVS was essential for their interaction. The impact of AMBRA1 on dsRNA-induced apoptosis relied on the presence of MAVS and caspase-8. AMBRA1 was involved in the stabilization of MAVS through preventing its proteasomal degradation induced by dsRNA. Consistently, AMBRA1 upregulated the apoptosis induced by Semliki Forest virus infection. Taken together, our work illustrated a role of AMBRA1 in the virus-induced apoptosis through interacting with and stabilizing MAVS.
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Affiliation(s)
- Yuxia Lin
- Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou 510080, China.,Department of Immunology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Changbai Huang
- Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou 510080, China.,Department of Immunology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Huixin Gao
- Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou 510080, China.,Department of Immunology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Xiaobo Li
- Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou 510080, China.,Department of Immunology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Quanshi Lin
- Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou 510080, China.,Department of Immunology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Shili Zhou
- Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou 510080, China.,Department of Immunology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Zhiting Huo
- Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou 510080, China.,Department of Immunology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Yanxia Huang
- Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou 510080, China.,Department of Immunology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Chao Liu
- Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou 510080, China.,Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Ping Zhang
- Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou 510080, China.,Department of Immunology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
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10
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Wu G, Xu Y, Zhang H, Ruan Z, Zhang P, Wang Z, Gao H, Che X, Xia Q, Chen F. A new prognostic risk model based on autophagy-related genes in kidney renal clear cell carcinoma. Bioengineered 2021; 12:7805-7819. [PMID: 34636718 PMCID: PMC8806698 DOI: 10.1080/21655979.2021.1976050] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
This study aimed to explore the potential role of autophagy-related genes in kidney renal clear cell carcinoma (KIRC) and develop a new prognostic-related risk model. In our research, we used multiple bioinformatics methods to perform a pan-cancer analysis of the CNV, SNV, mRNA expression, and overall survival of autophagy-related genes, and displayed the results in the form of heat maps. We then performed cluster analysis and LASSO regression analysis on these autophagy-related genes in KIRC. In the cluster analysis, we successfully divided patients with KIRC into five clusters and found that there was a clear correlation between the classification and two clinicopathological features: tumor, and stage. In LASSO regression analysis, we used 13 genes to create a new prognostic-related risk model in KIRC. The model showed that the survival rate of patients with KIRC in the high-risk group was significantly lower than that in the low-risk group, and that there was a correlation between this grouping and the patients’ metastasis, tumor, stage, grade, and fustat. The results of the ROC curve suggested that this model has good prediction accuracy. The results of multivariate Cox analysis show that the risk score of this model can be used as an independent risk factor for patients with KIRC. In summary, we believe that this research provides valuable data supporting future clinical treatment and scientific research.
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Affiliation(s)
- Guangzhen Wu
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, China.,Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yingkun Xu
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Huayu Zhang
- Department of Plastic and Reconstructive Surgery, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zihao Ruan
- Department of Nursing, Zhengzhou University, Zhengzhou, China
| | - Peizhi Zhang
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zicheng Wang
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Han Gao
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Xiangyu Che
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Qinghua Xia
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Feng Chen
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
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11
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Wen N, Lv Q, Du ZG. MicroRNAs involved in drug resistance of breast cancer by regulating autophagy. J Zhejiang Univ Sci B 2021; 21:690-702. [PMID: 32893526 DOI: 10.1631/jzus.b2000076] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Autophagy is a conserved catabolic process characterized by degradation and recycling of cytosolic components or organelles through a lysosome-dependent pathway. It has a complex and close relationship to drug resistance in breast cancer. MicroRNAs (miRNAs) are small noncoding molecules that can influence numerous cellular processes including autophagy, through the posttranscriptional regulation of gene expression. Autophagy is regulated by many proteins and pathways, some of which in turn have been found to be regulated by miRNAs. These miRNAs may affect the drug resistance of breast cancer. Drug resistance is the main cause of distant recurrence, metastasis and death in breast cancer patients. In this review, we summarize the causative relationship between autophagy and drug resistance of breast cancer. The roles of autophagy-related proteins and pathways and their associated miRNAs in drug resistance of breast cancer are also discussed.
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Affiliation(s)
- Nan Wen
- Department of Breast Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qing Lv
- Department of Breast Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zheng-Gui Du
- Department of Breast Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
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12
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朱 晨, 杜 家, 姚 言, 武 丹, 苑 敏, 干 露, 童 旭. [Inhibiting autophagy by silencing ATG5 and ATG7 enhances inhibitory effect of DDP on DDP-resistant I-10 testicular cancer cells]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:657-663. [PMID: 34134951 PMCID: PMC8214968 DOI: 10.12122/j.issn.1673-4254.2021.05.04] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Indexed: 12/09/2022]
Abstract
OBJECTIVE To observe the changes in autophagy of cisplatin-resistant I-10 testicular cancer cells (I-10/DDP cells) in response to cisplatin treatment and the effect of silencing ATG5 and ATG7 on autophagy and proliferation of cisplatin-treated cells. OBJECTIVE I-10/DDP cells treated with 15 μmol/L cisplatin for 12 h were examined for expressions of LC3 and p62 by Western blotting and for autophagy level through transmission electron microscopy and mCherry-GFP-LC3B. I-10/DDP cells were transfected with short hairpin RNAs shRNA-ATG5 or shRNA-ATG7 via Lipfectamine2000, the empty vector (NC group), or Lipfectamine2000 alone (blank control group), and the cellular expressions of ATG5 and ATG7 were detected with Western blotting. The transfected cells were treated with 15 μmol/L cisplatin for 12 h, after that the expressions of LC3 and p62 were detected with Western blotting. Transmission electron microscopy and mCherry-GFP-LC3B were used to detect autophagy level in the cells. MTT assay and colony-forming assay were performed to assess the cell survival fraction and colony formation ability of the treated cells, respectively. OBJECTIVE After cisplatin treatmert, the expression level of LC3 II increased significantly (P < 0.001), the expression level of p62 decreased (P < 0.05), and the number of autophagosomes increased in I-10/DDP cells. The cells transfected with shRNA-ATG5 or shRNA-ATG7 showed significantly decreased expressions of ATG5 or ATG7 (P=0.005 or P < 0.001). Cisplatin treatment of the transfected cells obviously reduced the cellular expression of LC3 II (P < 0.001), increased the expression of p62 (P < 0.001), and decreased the number of autophagosomes, cell survival fraction and colony formation ability of the cells (P < 0.001). OBJECTIVE Silencing ATG5 and ATG7 inhibits cisplatin-mediated autophagy and enhances the inhibitory effect of cisplatin on inhibiting cell proliferation.
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Affiliation(s)
- 晨露 朱
- />蚌埠医学院药学院,安徽 蚌埠 233030School of Pharmacy, Bengbu Medical College, Bengbu 233030, China
| | - 家如 杜
- />蚌埠医学院药学院,安徽 蚌埠 233030School of Pharmacy, Bengbu Medical College, Bengbu 233030, China
| | - 言雪 姚
- />蚌埠医学院药学院,安徽 蚌埠 233030School of Pharmacy, Bengbu Medical College, Bengbu 233030, China
| | - 丹丹 武
- />蚌埠医学院药学院,安徽 蚌埠 233030School of Pharmacy, Bengbu Medical College, Bengbu 233030, China
| | - 敏 苑
- />蚌埠医学院药学院,安徽 蚌埠 233030School of Pharmacy, Bengbu Medical College, Bengbu 233030, China
| | - 露 干
- />蚌埠医学院药学院,安徽 蚌埠 233030School of Pharmacy, Bengbu Medical College, Bengbu 233030, China
| | - 旭辉 童
- />蚌埠医学院药学院,安徽 蚌埠 233030School of Pharmacy, Bengbu Medical College, Bengbu 233030, China
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13
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Wang M, Jing J, Li H, Liu J, Yuan Y, Sun L. The expression characteristics and prognostic roles of autophagy-related genes in gastric cancer. PeerJ 2021; 9:e10814. [PMID: 33604190 PMCID: PMC7866901 DOI: 10.7717/peerj.10814] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 12/30/2020] [Indexed: 12/19/2022] Open
Abstract
Background Autophagy is an evolutionally highly conserved process, accompanied by the dynamic changes of various molecules, which is necessary for the orderly degradation and recycling of cellular components. The aim of the study was to identify the role of autophagy-related (ATG) genes in the occurrence and development of gastric cancer (GC). Methods Data from Oncomine dataset was used for the differential expression analysis between cancer and normal tissues. The association of ATG genes expression with clinicopathologic indicators was evaluated by The Cancer Genome Atlas (TCGA) database and Gene Expression Omnibus (GEO) database. Moreover, using the TCGA datasets, the prognostic role of ATG genes was assessed. A nomogram was further built to assess the independent prognostic factors. Results The expression of autophagy-related genes AMBRA1, ATG4B, ATG7, ATG10, ATG12, ATG16L2, GABARAPL2, GABARAPL1, ULK4 and WIPI2 showed differences between cancer and normal tissues. After verification, ATG14 and ATG4D were significantly associated with TNM stage. ATG9A, ATG2A, and ATG4D were associated with T stage. VMP1 and ATG4A were low-expressed in patients without lymph node metastasis. No gene in autophagy pathway was associated with M stage. Further multivariate analysis suggested that ATG4D and MAP1LC3C were independent prognostic factors for GC. The C-index of nomogram was 0.676 and the 95% CI was 0.628 to 0.724. Conclusion Our study provided a comprehensive illustration of ATG genes expression characteristics in GC. Abnormal expressions of the ubiquitin-like conjugated system in ATG genes plays a key role in the occurrence of GC. ATG8/LC3 sub-system may play an important role in development and clinical outcome of GC. In the future, it is necessary to further elucidate the alterations of specific ATG8/LC3 forms in order to provide insights for the discovery, diagnosis, or targeting for GC.
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Affiliation(s)
- Mengya Wang
- Tumor Etiology and Screening Department of Cancer Institute, and Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - Jingjing Jing
- Tumor Etiology and Screening Department of Cancer Institute, and Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - Hao Li
- Department of Clinical Laboratory, the First Hospital of China Medical University, Shenyang, China
| | - Jingwei Liu
- Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute, and Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, the First Hospital of China Medical University, Shenyang, China
| | - Liping Sun
- Tumor Etiology and Screening Department of Cancer Institute, and Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, the First Hospital of China Medical University, Shenyang, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, the First Hospital of China Medical University, Shenyang, China
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14
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Yuan XL, Li XQ, Xu K, Hou XD, Zhang ZF, Xue L, Liu XM, Zhang P. Transcriptome Profiling and Cytological Assessments for Identifying Regulatory Pathways Associated With Diorcinol N-Induced Autophagy in A3 Cells. Front Pharmacol 2020; 11:570450. [PMID: 33178020 PMCID: PMC7593552 DOI: 10.3389/fphar.2020.570450] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 09/09/2020] [Indexed: 12/11/2022] Open
Abstract
Fungal secondary metabolites serve as a rich resource for exploring lead compounds with medicinal importance. Diorcinol N (DN), a fungal secondary metabolite isolated from an endophytic fungus, Arthrinium arundinis, exhibits robust anticancer activity. However, the anticancer mechanism of DN remains unclear. In this study, we examined the growth-inhibitory effect of DN on different human cancer cell lines. We found that DN decreased the viability of A3 T-cell leukemia cells in a time- and concentration-dependent manner. Transcriptome analysis indicated that DN modulated the transcriptome of A3 cells. In total, 9,340 differentially expressed genes were found, among which 4,378 downregulated genes and 4,962 upregulated genes were mainly involved in autophagy, cell cycle, and DNA replication. Furthermore, we demonstrated that DN induced autophagy, cell cycle arrest in the G1/S phase, and downregulated the expression of autophagy- and cell cycle-related genes in A3 cells. By labeling A3 cells with acridine orange/ethidium bromide, Hoechst 33,258, and monodansylcadaverine and via transmission electron microscopy, we found that DN increased plasma membrane permeability, structural disorganization, vacuolation, and autophagosome formation. Our study provides evidence for the mechanism of anticancer activity of DN in T-cell leukemia (A3) cells and demonstrates the promise of DN as a lead or even candidate molecule for the treatment of acute lymphoblastic leukemia.
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Affiliation(s)
- Xiao-Long Yuan
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Xiu-Qi Li
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China.,Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Kuo Xu
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Xiao-Dong Hou
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Zhong-Feng Zhang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Lin Xue
- Wannan Tobacco Group Company Limited, Xuancheng, China
| | - Xin-Min Liu
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Peng Zhang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
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15
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Zhang F, Xie S, Zhang Z, Zhao H, Zhao Z, Sun H, Zheng J. A Novel Risk Model Based on Autophagy Pathway Related Genes for Survival Prediction in Lung Adenocarcinoma. Med Sci Monit 2020; 26:e924710. [PMID: 32873769 PMCID: PMC7486793 DOI: 10.12659/msm.924710] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background Autophagy has a principal role in mediating tumor cell metabolism. However, the role of autophagy-pathway-related genes (APRGs) as prognostic markers remains obscure in lung adenocarcinoma (LUAD). More potential prognostic biomarkers are needed to deepen our understanding to explore the prognostic role of APRGs in LUAD. Material/Methods We used The Cancer Genome Atlas (TCGA) database to identify differentially expressed APRGs. Cox proportional hazard regression was used to identify prognostic APRGs, and then a risk model was constructed. The efficacy of the risk model was confirmed using a testing group. Lastly, we explored mutational signatures of prognostic of APRGs. T-tests were used to analyze all the expression patterns of genes by SPSS 19.0. Results Using TCGA database, 5 differently expressed APRGs were identified in LUAD patients, and functional enrichment analyze of the genes that were closely associated with the survival status in LUAD patients. Cox proportional hazard regression was facilitated to identify 9 APRGs (CCR2, LAMP1, RELA, ATG12, ATG9A, NCKAP1, ATG10, DNAJB9, and MBTPS2). Multivariate Cox proportional hazards regression analyses further identified 5 key prognostic APRGs (CCR2, LAMP1, RELA, ATG12, and MBTPS2) that were closely related to the survival status in LUAD. Then the prognostic scores based on the 5 genes as independent prognostic indicators were constructed for overall survival (OS) of LUAD patients; area under the curve (AUC) values >0.70 (all P<0.05). The efficacy of prognostic scores was confirmed by data from the testing group and showed significant differences between the low-risk and the high-risk groups for OS (P<0.05). Conclusions The risk model based on the construction of 5 APRGs can predict the prognosis of patients with LUAD, which may potentially predict prognostic signatures for LUAD.
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Affiliation(s)
- Fan Zhang
- Department of Ophthalmology, Guangdong Women and Children Hospital, Guangzhou, Guangdong, China (mainland)
| | - Suzhen Xie
- Department of Ophthalmology, Guangdong Women and Children Hospital, Guangzhou, Guangdong, China (mainland)
| | - Zhenyu Zhang
- Department of Ophthalmology, Guangdong Women and Children Hospital, Guangzhou, Guangdong, China (mainland)
| | - Huanhuan Zhao
- Department of Ophthalmology, Guangdong Women and Children Hospital, Guangzhou, Guangdong, China (mainland)
| | - Zijun Zhao
- Department of Ophthalmology, Guangdong Women and Children Hospital, Guangzhou, Guangdong, China (mainland)
| | - Haiying Sun
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China (mainland)
| | - Jiao Zheng
- Department of Ophthalmology, Guangdong Women and Children Hospital, Guangzhou, Guangdong, China (mainland)
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16
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Han B, Zhang H, Zhu Y, Han X, Wang Z, Gao Z, Yuan Y, Tian R, Zhang F, Niu R. Subtype-specific risk models for accurately predicting the prognosis of breast cancer using differentially expressed autophagy-related genes. Aging (Albany NY) 2020; 12:13318-13337. [PMID: 32649310 PMCID: PMC7377895 DOI: 10.18632/aging.103437] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 05/25/2020] [Indexed: 01/08/2023]
Abstract
Emerging evidence suggests that the dysregulation of autophagy-related genes (ARGs) is coupled with the carcinogenesis and progression of breast cancer (BRCA). We constructed three subtype-specific risk models using differentially expressed ARGs. In Luminal, Her-2, and Basal-like BRCA, four- (BIRC5, PARP1, ATG9B, and TP63), three- (ITPR1, CCL2, and GAPDH), and five-gene (PRKN, FOS, BAX, IFNG, and EIF4EBP1) risk models were identified, which all have a receiver operating characteristic > 0.65 in the training and testing dataset. Multivariable Cox analysis showed that those risk models can accurately and independently predict the overall survival of BRCA patients. Comprehensive analysis showed that the 12 identified ARGs were correlated with the overall survival of BRCA patients; six of the ARGs (PARP1, TP63, CCL2, GAPDH, FOS, and EIF4EBP1) were differentially expressed between BRCA and normal breast tissue at the protein level. In addition, the 12 identified ARGs were highly interconnected and displayed high frequency of copy number variation in BRCA samples. Gene set enrichment analysis suggested that the deactivation of the immune system was the important driving force for the progression of Basal-like BRCA. This study demonstrated that the 12 ARG signatures were potential multi-dimensional biomarkers for the diagnosis, prognosis, and treatment of BRCA.
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Affiliation(s)
- Baoai Han
- Public Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
- Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin 300060, China
| | - He Zhang
- Public Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
- Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin 300060, China
| | - Yuying Zhu
- Public Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
- Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin 300060, China
| | - Xingxing Han
- Public Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
- Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin 300060, China
| | - Zhiyong Wang
- Public Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
- Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin 300060, China
| | - Zicong Gao
- Public Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
- Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin 300060, China
| | - Yue Yuan
- Public Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
- Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin 300060, China
| | - Ruinan Tian
- Public Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
- Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin 300060, China
| | - Fei Zhang
- Public Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
- Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin 300060, China
| | - Ruifang Niu
- Public Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
- Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
- Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin 300060, China
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Chen Y, Zhou J, Wu X, Huang J, Chen W, Liu D, Zhang J, Huang Y, Xue W. miR-30a-3p inhibits renal cancer cell invasion and metastasis through targeting ATG12. Transl Androl Urol 2020; 9:646-653. [PMID: 32420171 PMCID: PMC7214999 DOI: 10.21037/tau.2019.12.10] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Correspondence to: Yonghui Chen; Wei Xue. Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China. Email: cyh1488@163.com; xuewei@renji.com.
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Affiliation(s)
- Yonghui Chen
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Jiale Zhou
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Xiaorong Wu
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Jiwei Huang
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Wei Chen
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Dongming Liu
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Jin Zhang
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Yiran Huang
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Wei Xue
- Department of Urology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
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18
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Nie Y, Liang X, Liu S, Guo F, Fang N, Zhou F. WASF3 Knockdown Sensitizes Gastric Cancer Cells to Oxaliplatin by Inhibiting ATG12-Mediated Autophagy. Am J Med Sci 2020; 359:287-295. [PMID: 32359534 DOI: 10.1016/j.amjms.2020.02.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 01/23/2020] [Accepted: 02/26/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Gastric cancer is one of the most aggressive tumors, usually resulting in metastasis, and therapies for advanced gastric cancer remain limited. Drug resistance is the main reason for chemotherapeutic failure in gastric cancer. Wiskott-Aldrich syndrome protein family member 3 (WASF3) is required for invasion and metastasis of different cancers. However, there has been little study of WASF3 expression involvement in gastric cancer. In this study, we explored the role of WASF3 in the sensitivity of gastric cancer to oxaliplatin, and the underlying mechanisms. METHODS We silenced WASF3 using WASF3-siRNA in MGC803 cells. Then, CCK-8, flow cytometry and transwell assay were performed to study the effect of WASF3 silencing on proliferation, migration, invasiveness and apoptosis of MGC803 cells. Moreover, we evaluated the potential mechanism in vitro to determine the sensitization to oxaliplatin induced by WASF3. RESULTS WASF3 silencing by small interfering RNA inhibited the proliferation, migration and invasiveness of gastric cancer cells. We also observed that WASF3 knockdown promoted cell apoptosis and enhanced oxaliplatin sensitivity. Furthermore, the sensitization to oxaliplatin induced by WASF3 knockdown depended on the inhibition of Atg12-mediated autophagy. CONCLUSIONS Our analysis demonstrates WASF3 targeting is a new potential therapeutic strategy for gastric cancer.
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Affiliation(s)
- Yanli Nie
- Department of Radiation Oncology and Medical Oncology, Zhongnan Hospital of Wuhan University, Hubei Cancer Clinical Study Center, Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan, China; Department of Gastrointestinal Medical Oncology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xinjun Liang
- Department of Gastrointestinal Medical Oncology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Sanhe Liu
- Department of Gastrointestinal Medical Oncology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fang Guo
- Department of Pathology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Na Fang
- Department of Pathology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fuxiang Zhou
- Department of Radiation Oncology and Medical Oncology, Zhongnan Hospital of Wuhan University, Hubei Cancer Clinical Study Center, Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan, China.
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19
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Liu YL, Yan ZX, Xia Y, Xie XY, Zhou K, Xu LL, Shi YL, Wang Q, Bi JW. Ligustrazine reverts anthracycline chemotherapy resistance of human breast cancer by inhibiting JAK2/STAT3 signaling and decreasing fibrinogen gamma chain (FGG) expression. Am J Cancer Res 2020; 10:939-952. [PMID: 32266101 PMCID: PMC7136924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 02/07/2020] [Indexed: 06/11/2023] Open
Abstract
Chemotherapy resistance is a major challenge for breast cancer treatment. It is necessary to elucidate the mechanisms of anthracycline resistance to develop new chemosensitizers for breast cancer. In this study, we explored the effects of ligustrazine (TMP) on reverting anthracycline resistance of breast cancer cells, as well as its related mechanisms. Clinical significance of fibrinogen gamma chain (FGG) expression was also analyzed in breast cancer tissues. We provided evidence that breast tumor cell derived FGG participated in anthracycline chemoresistance of breast cancer. Further, TMP reverted epirubicin resistance by inhibiting JAK2/STAT3 signaling and decreasing FGG expression. Meanwhile, the elimination of cancer stem cell was observed in TMP treated chemoresistant breast cancer cells. Clinical analysis demonstrated that patients with FGG expressing breast cancer showed a dramatically low response to anthracycline-based chemotherapy and poor survival. Our data collectively indicated that FGG was an independent detrimental factor for anthracycline based chemotherapy for breast cancer patients. TMP was a novel chemosensitizer for FGG-induced anthracycline chemoresistance in breast cancer treatment.
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Affiliation(s)
- Yu-Lin Liu
- Clinical Laboratory, Navy 971 Hospital of PLAQingdao 266071, China
| | - Ze-Xuan Yan
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical UniversityChongqing 400038, China
| | - Yu Xia
- Clinical Laboratory, Navy 971 Hospital of PLAQingdao 266071, China
| | - Xiao-Ye Xie
- Department of Oncology, 960 Hospital of PLAJinan 250031, China
| | - Kai Zhou
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical UniversityChongqing 400038, China
| | - Li-Li Xu
- Clinical Laboratory, Navy 971 Hospital of PLAQingdao 266071, China
| | - Yan-Long Shi
- Department of Oncology, 960 Hospital of PLAJinan 250031, China
| | - Qiang Wang
- Clinical Laboratory, Navy 971 Hospital of PLAQingdao 266071, China
- Department of Oncology, 960 Hospital of PLAJinan 250031, China
| | - Jing-Wang Bi
- Department of Oncology, 960 Hospital of PLAJinan 250031, China
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20
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Ma J, Weng L, Jia Y, Liu B, Wu S, Xue L, Yin X, Mao A, Wang Z, Shang M. PTBP3 promotes malignancy and hypoxia-induced chemoresistance in pancreatic cancer cells by ATG12 up-regulation. J Cell Mol Med 2020; 24:2917-2930. [PMID: 31989778 PMCID: PMC7077536 DOI: 10.1111/jcmm.14896] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 10/17/2019] [Accepted: 11/23/2019] [Indexed: 01/05/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) tumours exhibit a high level of heterogeneity which is associated with hypoxia and strong resistance to chemotherapy. The RNA splicing protein polypyrimidine tract-binding protein 3 (PTBP3) regulates hypoxic gene expression by selectively binding to hypoxia-regulated transcripts. We have investigated the role of PTBP3 in tumour development and chemotherapeutic resistance in human PDAC tissues and pancreatic cancer cells. In addition, we determined the sensitivity of cancer cells to gemcitabine with differential levels of PTBP3 and whether autophagy and hypoxia affect gemcitabine resistance in vitro. PTBP3 expression was higher in human pancreatic cancer than in paired adjacent tissues. PTBP3 overexpression promoted PDAC proliferation in vitro and tumour growth in vivo, whereas PTBP3 depletion had opposing effects. Hypoxia significantly increased the expression of PTBP3 in pancreatic cancer cells in vitro. Under hypoxic conditions, cells were more resistance to gemcitabine. Knockdown of PTBP3 results in decreased resistance to gemcitabine, which was attributed to attenuated autophagy. We propose that PTBP3 binds to multiple sites in the 3'-UTR of ATG12 resulting in overexpression. PTBP3 increases cancer cell proliferation and autophagic flux in response to hypoxic stress, which contributes to gemcitabine resistance.
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MESH Headings
- 3' Untranslated Regions/genetics
- Adenocarcinoma/drug therapy
- Adenocarcinoma/genetics
- Adenocarcinoma/pathology
- Animals
- Autophagy/drug effects
- Autophagy/genetics
- Autophagy-Related Protein 12/genetics
- Autophagy-Related Protein 12/metabolism
- Base Sequence
- Carcinoma, Pancreatic Ductal/drug therapy
- Carcinoma, Pancreatic Ductal/genetics
- Carcinoma, Pancreatic Ductal/pathology
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Deoxycytidine/analogs & derivatives
- Deoxycytidine/pharmacology
- Deoxycytidine/therapeutic use
- Drug Resistance, Neoplasm/drug effects
- Drug Resistance, Neoplasm/genetics
- Female
- Gene Expression Regulation, Neoplastic/drug effects
- Humans
- Mice, Inbred BALB C
- Mice, Nude
- Pancreatic Neoplasms/drug therapy
- Pancreatic Neoplasms/genetics
- Pancreatic Neoplasms/pathology
- Polypyrimidine Tract-Binding Protein/metabolism
- Stress, Physiological/drug effects
- Tumor Hypoxia/drug effects
- Tumor Hypoxia/genetics
- Up-Regulation/drug effects
- Up-Regulation/genetics
- Gemcitabine
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Affiliation(s)
- Jun Ma
- Department of Interventional RadiologyTongren HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Li Weng
- Department of Interventional RadiologyTongren HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Yiping Jia
- Department of Interventional RadiologyTongren HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Bingyan Liu
- Department of Interventional RadiologyTongren HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Shaoqiu Wu
- Department of Interventional RadiologyTongren HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Lei Xue
- Shanghai Key Laboratory of Signaling and Diseases ResearchSchool of Life Science and TechnologyTongji UniversityShanghaiChina
| | - Xiang Yin
- Department of Interventional RadiologyTongren HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Aiwu Mao
- Department of Interventional RadiologyTongren HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Zhongmin Wang
- Department of interventional radiologyRuijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Mingyi Shang
- Department of Interventional RadiologyTongren HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
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21
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Transposon Insertion Mutagenesis in Mice for Modeling Human Cancers: Critical Insights Gained and New Opportunities. Int J Mol Sci 2020; 21:ijms21031172. [PMID: 32050713 PMCID: PMC7036786 DOI: 10.3390/ijms21031172] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 01/30/2020] [Accepted: 02/03/2020] [Indexed: 02/07/2023] Open
Abstract
Transposon mutagenesis has been used to model many types of human cancer in mice, leading to the discovery of novel cancer genes and insights into the mechanism of tumorigenesis. For this review, we identified over twenty types of human cancer that have been modeled in the mouse using Sleeping Beauty and piggyBac transposon insertion mutagenesis. We examine several specific biological insights that have been gained and describe opportunities for continued research. Specifically, we review studies with a focus on understanding metastasis, therapy resistance, and tumor cell of origin. Additionally, we propose further uses of transposon-based models to identify rarely mutated driver genes across many cancers, understand additional mechanisms of drug resistance and metastasis, and define personalized therapies for cancer patients with obesity as a comorbidity.
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22
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Ho CJ, Gorski SM. Molecular Mechanisms Underlying Autophagy-Mediated Treatment Resistance in Cancer. Cancers (Basel) 2019; 11:E1775. [PMID: 31717997 PMCID: PMC6896088 DOI: 10.3390/cancers11111775] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 10/30/2019] [Accepted: 10/31/2019] [Indexed: 12/13/2022] Open
Abstract
Despite advances in diagnostic tools and therapeutic options, treatment resistance remains a challenge for many cancer patients. Recent studies have found evidence that autophagy, a cellular pathway that delivers cytoplasmic components to lysosomes for degradation and recycling, contributes to treatment resistance in different cancer types. A role for autophagy in resistance to chemotherapies and targeted therapies has been described based largely on associations with various signaling pathways, including MAPK and PI3K/AKT signaling. However, our current understanding of the molecular mechanisms underlying the role of autophagy in facilitating treatment resistance remains limited. Here we provide a comprehensive summary of the evidence linking autophagy to major signaling pathways in the context of treatment resistance and tumor progression, and then highlight recently emerged molecular mechanisms underlying autophagy and the p62/KEAP1/NRF2 and FOXO3A/PUMA axes in chemoresistance.
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Affiliation(s)
- Cally J. Ho
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer, Vancouver, BC V5Z 1L3, Canada;
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Sharon M. Gorski
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer, Vancouver, BC V5Z 1L3, Canada;
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
- Centre for Cell Biology, Development, and Disease, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
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23
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Udristioiu A, Nica-Badea D. Autophagy dysfunctions associated with cancer cells and their therapeutic implications. Biomed Pharmacother 2019; 115:108892. [PMID: 31029889 DOI: 10.1016/j.biopha.2019.108892] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 04/12/2019] [Accepted: 04/17/2019] [Indexed: 02/08/2023] Open
Abstract
Genomic analysis of human cancers indicates that the loss or mutation of core autophagy related genes, (ATG) is uncommon, whereas oncogenic events that activate autophagy and lysosomal biogenesis have been identified. Several studies have demonstrated that autophagy plays a wide variety of physiological and pathophysiological roles in cells: a cellular process that maintains the homeostasis of the normal cell, while self-defects can lead to a lawsuit to accelerate tumorigenesis and developing diseases, such as cancer. Depending on different contexts, autophagy dysfunctions may play a role: neutral, tumor-suppressive, or tumor-promoting. The process of autophagy may function in tumor suppression by mitigating metabolic stress and, in concert with apoptosis, by preventing tumor cell death by necrosis. In this case, optimal combination of autophagy inhibition (CQ, HCQ) with other conventional therapies - chemo or radiotherapy in a variety of tumor types in different phases can be successful approaches for improve the effect of anticancer therapies. This review examines recent insights of the molecular mechanism of autophagy and the potential roles of autophagy in cell death, cancer development, overview of the most recent therapeutic strategies involving autophagy modulators in cancer prevention and therapeutic opportunities.
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Affiliation(s)
- Aurelian Udristioiu
- Molecular Biology, Medicine Faculty, Titu Maiorescu University, Bucharest, Romania
| | - Delia Nica-Badea
- Medicinal and Behavioral Sciences Faculty, Constantin Brâncuși University, Târgu - Jiu, Romania.
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24
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Capelôa T, Benyahia Z, Zampieri LX, Blackman MCNM, Sonveaux P. Metabolic and non-metabolic pathways that control cancer resistance to anthracyclines. Semin Cell Dev Biol 2019; 98:181-191. [PMID: 31112797 DOI: 10.1016/j.semcdb.2019.05.006] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 05/09/2019] [Accepted: 05/09/2019] [Indexed: 02/07/2023]
Abstract
Anthracyclines Doxorubicin, Epirubicin, Daunorubicin and Idarubicin are used to treat a variety of tumor types in the clinics, either alone or, most often, in combination therapies. While their cardiotoxicity is well known, the emergence of chemoresistance is also a major issue accounting for treatment discontinuation. Resistance to anthracyclines is associated to the acquisition of multidrug resistance conferred by overexpression of permeability glycoprotein-1 or other efflux pumps, by altered DNA repair, changes in topoisomerase II activity, cancer stemness and metabolic adaptations. This review further details the metabolic aspects of resistance to anthracyclines, emphasizing the contributions of glycolysis, the pentose phosphate pathway and nucleotide biosynthesis, glutathione, lipid metabolism and autophagy to the chemoresistant phenotype.
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Affiliation(s)
- Tânia Capelôa
- Pole of Pharmacology & Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Zohra Benyahia
- Pole of Pharmacology & Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Luca X Zampieri
- Pole of Pharmacology & Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Marine C N M Blackman
- Pole of Pharmacology & Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Pierre Sonveaux
- Pole of Pharmacology & Therapeutics, Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain (UCLouvain), Brussels, Belgium.
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25
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Identification and characterization of WD40 superfamily genes in peach. Gene 2019; 710:291-306. [PMID: 31185283 DOI: 10.1016/j.gene.2019.06.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 04/25/2019] [Accepted: 06/05/2019] [Indexed: 01/16/2023]
Abstract
The WD40 transcription factor family is a superfamily found in all eukaryotes that plays important roles in regulating growth and development. To our knowledge, to date, WD40 superfamily genes have been identified and characterized in several plant species, but little information is available on the WD40 superfamily genes in peach. In this study, we identified 220 members of the WD40 superfamily in the peach genome, and these members were further classified into five subfamilies based on phylogenetic comparison with those in Arabidopsis. The members within each subfamily had conserved motifs and gene structures. The WD40 genes were unevenly distributed on chromosomes 1 to 8 of the peach genome. Additionally, 58 pairs of paralog WD40 members were found on eight chromosomes in peach, and 242 pairs of orthologous WD40 genes in peach and Arabidopsis were matched. The 54 selected putative WD40 genes in peach had diverse expression patterns in red-fleshed and white-fleshed peach fruits at five developmental stages. Prupe.6G211800.1 was located only on the cytomembrane, while Prupe.1G428200.1 and Prupe.I003200.1 were located on both the cytomembrane and in the nucleus; Prupe.1G558700.1 was densely localized around the nuclear rim but relatively faintly localized in the nucleoplasm; Prupe.5G116300.1 was located in the nucleus and cytomembrane with strong signals but showed weak signals in the cytoplasm; and Prupe.8G212400.1 and Prupe.1G053600.1 were located mainly in the nuclear envelope and cytomembrane but relatively faintly in the nucleoplasm. This study provides a foundation for the further functional verification of WD40 genes in peach.
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26
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Sun WL, Wang L, Luo J, Zhu HW, Cai ZW. Ambra1 modulates the sensitivity of breast cancer cells to epirubicin by regulating autophagy via ATG12. Cancer Sci 2018; 109:3129-3138. [PMID: 30027574 PMCID: PMC6172055 DOI: 10.1111/cas.13743] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 07/11/2018] [Accepted: 07/13/2018] [Indexed: 12/18/2022] Open
Abstract
The sensitivity of breast cancer cells to epirubicin (EPI) is closely related to the efficacy of the drug and the prognosis of patients. A growing body of research has suggested that autophagy is involved in the treatment of a variety of cancers, including breast cancer, and modifies the sensitivity of anticancer drugs. However, the mechanism by which autophagy participates in cancer therapy and modulates drug sensitivity has not been fully elucidated. In this study, we showed that the expression of Autophagy/Beclin 1 regulator 1 (Ambra1), a key protein of autophagy, was negatively correlated with EPI sensitivity in breast cancer cells. In addition, it altered the sensitivity of breast cancer cells to EPI by regulating EPI-induced autophagy. As a potential mechanism, we demonstrated that autophagy-related protein 12 (ATG12) was a downstream protein that Ambra1-regulated EPI-induced autophagy. Therefore, Ambra1 plays an important role in regulating the sensitivity of breast cancer cells to EPI. And the regulatory effect of Ambra1 on EPI sensitivity is achieved through the regulation of autophagy by targeting ATG12. Overall, we propose a novel mechanism by which autophagy modulates the sensitivity of breast cancer cells to EPI. ATG12 is a novel targeting protein of Ambra1 in regulating EPI-induced autophagy. In addition, the important role of Ambra1 in modulating the sensitivity of breast cancer cells to EPI is confirmed in vivo. This finding indicates that Ambra1 might be a target for developing breast cancer treatments.
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Affiliation(s)
- Wei-Liang Sun
- Department of Medical Oncology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Li Wang
- Department of Medical Oncology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jie Luo
- Department of Medical Oncology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Hua-Wei Zhu
- Department of Medical Oncology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zheng-Wen Cai
- Department of Medical Oncology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
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