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El-Masry TA, El-Nagar MMF, El Mahdy NA, Alherz FA, Taher R, Osman EY. Potential Antitumor Activity of Combined Lycopene and Sorafenib against Solid Ehrlich Carcinoma via Targeting Autophagy and Apoptosis and Suppressing Proliferation. Pharmaceuticals (Basel) 2024; 17:527. [PMID: 38675487 PMCID: PMC11055160 DOI: 10.3390/ph17040527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/13/2024] [Accepted: 04/14/2024] [Indexed: 04/28/2024] Open
Abstract
An FDA-approved kinase inhibitor called sorafenib (SOR) is used to treat primary kidney and liver cancer as well as to stop the spread of advanced breast cancer. Side effects from SOR, such as palmar-plantar erythrodysesthesia syndrome, can negatively impact an individual's quality of life. There are a lot of data supporting the importance of lycopene (LYC) in preventing cancer. The antitumor properties of the combination of sorafenib and lycopene were examined in this study. A viability test against MDA-MB-231 was used to assess the anticancer efficacy of sorafenib, lycopene, and their combination in vitro. Moreover, a cell cycle analysis and Annexin-V/PI double staining were performed by using flow cytometry. In addition, the protein level of JNK-1, ERK-1, Beclin-1, P38, and P53 of the MDA-MB-231 cell line was estimated using ELISA kits. In addition, mice with SEC were divided into four equal groups at random (n = 10) to investigate the possible processes underlying the in vivo antitumor effect. Group IV (SEC-SOR-LYC) received SOR (30 mg/kg/day, p.o.) and LYC (20 mg/kg/day, p.o.); Group I received the SEC control; Group II received SEC-SOR (30 mg/kg/day, p.o.); and Group III received SEC-LYC (20 mg/kg/day, p.o.). The findings demonstrated that the combination of sorafenib and lycopene was superior to sorafenib and lycopene alone in causing early cell cycle arrest, suppressing the viability of cancer cells, and increasing cell apoptosis and autophagy. Likewise, the combination of sorafenib and lycopene demonstrated inhibition of the levels of Bcl-2, Ki-67, VEGF, IL-1β, and TNF-α protein. Otherwise, the quantities of the proteins BAX, P53, and caspase 3 were amplified. Furthermore, the combined treatment led to a substantial increase in TNF-α, caspase 3, and VEGF gene expression compared to the equivalent dosages of monotherapy. The combination of sorafenib and lycopene enhanced apoptosis and reduced inflammation, as seen by the tumor's decreased weight and volume, hence demonstrating its potential anticancer effect.
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Affiliation(s)
- Thanaa A. El-Masry
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta 31527, Egypt; (N.A.E.M.); (R.T.); (E.Y.O.)
| | - Maysa M. F. El-Nagar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta 31527, Egypt; (N.A.E.M.); (R.T.); (E.Y.O.)
| | - Nageh A. El Mahdy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta 31527, Egypt; (N.A.E.M.); (R.T.); (E.Y.O.)
| | - Fatemah A. Alherz
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia;
| | - Reham Taher
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta 31527, Egypt; (N.A.E.M.); (R.T.); (E.Y.O.)
| | - Enass Y. Osman
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta 31527, Egypt; (N.A.E.M.); (R.T.); (E.Y.O.)
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Kong F, Han B, Chen J, Shen X, Hou L, Fang J, Lian M. Role of PPARG in Chemosensitivity-Regulating Network for Hypopharyngeal Squamous Cell Carcinoma. PPAR Res 2023; 2023:6019318. [PMID: 37791141 PMCID: PMC10545467 DOI: 10.1155/2023/6019318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/10/2023] [Accepted: 09/04/2023] [Indexed: 10/05/2023] Open
Abstract
PPARG has been reported to promote chemosensitivity in hypopharyngeal squamous cell carcinoma (HSCC). However, few studies tested its significance in the texture of a complex molecular network regulating chemosensitivity in HSCC. Here, we first employed RNA expression data analysis and literature data mining to uncover candidate genes related to HSCC chemosensitivity. Then, we constructed the molecular network regulating chemosensitivity in HSCC. After that, we employed degree centrality (DC) and weighted centrality (WC) to test the significance of PPARG within the regulating network. Pathway enrichment was done to study the cofunctions of PPARG and the rest of the genes within the network. The findings of our study contribute to the construction of a comprehensive network that regulates HSCC chemosensitivity, consisting of 57 genes, including PPARG. Notably, within this network, PPARG demonstrates a ranking of #5 and #13 based on DC and WC, respectively. Moreover, PPARG is connected to 29 out of the 57 genes and plays roles in multiple functional groups. These top related genes include AKT1, TP53, PTEN, MAPK1, NOTCH1, BECN1, PTGS2, SPP1, and RAC1. PPARG gets enriched in several key functional groups that have been implicated in the regulation of chemosensitivity, including those associated with the response to nutrients, vitamins, and peptides, the cellular response to chemical stress, and the regulation of hormone secretion and growth. Our results emphasize the involvement of PPARG and its interconnectedness with other genes in the regulation of HSCC chemosensitivity.
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Affiliation(s)
- Fanyong Kong
- Department of Otorhinolaryngology, Beijing Shunyi District Hospital, Shunyi Teaching Hospital of Capital Medical University, Beijing 101300, China
| | - Boxuan Han
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Jiaming Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Xixi Shen
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Lizhen Hou
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Jugao Fang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Meng Lian
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
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Liang J, Cai H, Hou C, Song F, Jiang Y, Wang Z, Qiu D, Zhu Y, Wang F, Yu D, Hou J. METTL14 inhibits malignant progression of oral squamous cell carcinoma by targeting the autophagy-related gene RB1CC1 in an m6A-IGF2BP2-dependent manner. Clin Sci (Lond) 2023; 137:1373-1389. [PMID: 37615536 PMCID: PMC10500204 DOI: 10.1042/cs20230219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 08/10/2023] [Accepted: 08/24/2023] [Indexed: 08/25/2023]
Abstract
N6-methyladenosine (m6A) plays crucial roles in tumorigenesis and autophagy. However, the underlying mechanisms mediated by m6A and autophagy in the malignant progression of oral squamous cell carcinoma (OSCC) remain unclear. In the present study, we revealed that down-regulated expression of METTL14 was correlated with advanced clinicopathological characteristics and poor prognosis in OSCC. METTL14 knockdown significantly inhibited autophagy and facilitated malignant progression in vitro, and promoted tumor growth and metastasis in vivo. A cell model of rapamycin-induced autophagy was established to identify RB1CC1 as a potential target gene involved in m6A-regulated autophagy in OSCC, through RNA sequencing and methylated RNA immunoprecipitation sequencing (meRIP-seq) analysis. Mechanistically, we confirmed that METTL14 posttranscriptionally enhanced RB1CC1 expression in an m6A-IGF2BP2-dependent manner, thereby affecting autophagy and progression in OSCC, through methylated RNA immunoprecipitation qRT-PCR (meRIP-qPCR), RNA stability assays, mutagenesis assays and dual-luciferase reporter. Collectively, our findings demonstrated that METTL14 serves as an OSCC suppressor by regulating the autophagy-related gene RB1CC1 through m6A modification, which may provide a new insight for the diagnosis and therapy of OSCC.
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Affiliation(s)
- Jianfeng Liang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Hongshi Cai
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Chen Hou
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Fan Song
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Yaoqi Jiang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Ziyi Wang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Danqi Qiu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Yue Zhu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Fang Wang
- Department of Oral Surgery, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200000, China
| | - Dongsheng Yu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Jinsong Hou
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
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Guo Y, Zhang X, Li J, Zhou Z, Zhu S, Liu W, Su J, Chen X, Peng C. TRAF6 regulates autophagy and apoptosis of melanoma cells through c-Jun/ATG16L2 signaling pathway. MedComm (Beijing) 2023; 4:e309. [PMID: 37484971 PMCID: PMC10357248 DOI: 10.1002/mco2.309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 05/18/2023] [Accepted: 05/22/2023] [Indexed: 07/25/2023] Open
Abstract
Autophagy and apoptosis are essential processes that participate in cell death and maintain cellular homeostasis. Dysregulation of these biological processes results in the development of diseases, including cancers. Therefore, targeting the interaction between apoptosis and autophagy offers a potential strategy for cancer therapy. Melanoma is the most lethal skin cancer. We previously found that tumor necrosis factor receptor-associated factor 6 (TRAF6) is overexpressed in melanoma and benefits the malignant phenotype of melanoma cells. Additionally, TRAF6 promotes the activation of cancer-associated fibroblasts in melanoma. However, the role of TRAF6 in autophagy and apoptosis remains unclear. In this study, we found that knockdown of TRAF6 induced both apoptosis and autophagy in melanoma cells. Transcriptomic data and real-time PCR analysis demonstrated reduced expression of autophagy related 16 like 2 (ATG16L2) in TRAF6-deficient melanoma cells. ATG16L2 knockdown resulted in increased autophagy and apoptosis. Mechanism studies confirmed that TRAF6 regulated ATG16L2 expression through c-Jun. Importantly, targeting TRAF6 with cinchonine, a TRAF6 inhibitor, effectively suppressed the growth of melanoma cells by inducing autophagy and apoptosis through the TRAF6/c-Jun/ATG16L2 signaling pathway. These findings highlight the pivotal role of TRAF6 in regulating autophagy and apoptosis in melanoma, emphasizing its significance as a novel therapeutic target for melanoma treatment.
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Affiliation(s)
- Yeye Guo
- Department of DermatologyXiangya HospitalCentral South UniversityChangshaChina
- National Engineering Research Center of Personalized Diagnostic and Therapeutic TechnologyChangshaChina
- Furong LaboratoryChangshaChina
- Hunan Key Laboratory of Skin Cancer and PsoriasisHunan Engineering Research Center of Skin Health and DiseaseXiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital)ChangshaChina
| | - Xu Zhang
- Department of DermatologyXiangya HospitalCentral South UniversityChangshaChina
- National Engineering Research Center of Personalized Diagnostic and Therapeutic TechnologyChangshaChina
- Furong LaboratoryChangshaChina
- Hunan Key Laboratory of Skin Cancer and PsoriasisHunan Engineering Research Center of Skin Health and DiseaseXiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital)ChangshaChina
| | - Jie Li
- Department of DermatologyXiangya HospitalCentral South UniversityChangshaChina
- National Engineering Research Center of Personalized Diagnostic and Therapeutic TechnologyChangshaChina
- Furong LaboratoryChangshaChina
- Hunan Key Laboratory of Skin Cancer and PsoriasisHunan Engineering Research Center of Skin Health and DiseaseXiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital)ChangshaChina
| | - Zhe Zhou
- Department of DermatologyXiangya HospitalCentral South UniversityChangshaChina
- National Engineering Research Center of Personalized Diagnostic and Therapeutic TechnologyChangshaChina
- Furong LaboratoryChangshaChina
- Hunan Key Laboratory of Skin Cancer and PsoriasisHunan Engineering Research Center of Skin Health and DiseaseXiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital)ChangshaChina
| | - Susi Zhu
- Department of DermatologyXiangya HospitalCentral South UniversityChangshaChina
- National Engineering Research Center of Personalized Diagnostic and Therapeutic TechnologyChangshaChina
- Furong LaboratoryChangshaChina
- Hunan Key Laboratory of Skin Cancer and PsoriasisHunan Engineering Research Center of Skin Health and DiseaseXiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital)ChangshaChina
| | - Waner Liu
- Department of DermatologyXiangya HospitalCentral South UniversityChangshaChina
- National Engineering Research Center of Personalized Diagnostic and Therapeutic TechnologyChangshaChina
- Furong LaboratoryChangshaChina
- Hunan Key Laboratory of Skin Cancer and PsoriasisHunan Engineering Research Center of Skin Health and DiseaseXiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital)ChangshaChina
| | - Juan Su
- Department of DermatologyXiangya HospitalCentral South UniversityChangshaChina
- National Engineering Research Center of Personalized Diagnostic and Therapeutic TechnologyChangshaChina
- Furong LaboratoryChangshaChina
- Hunan Key Laboratory of Skin Cancer and PsoriasisHunan Engineering Research Center of Skin Health and DiseaseXiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital)ChangshaChina
| | - Xiang Chen
- Department of DermatologyXiangya HospitalCentral South UniversityChangshaChina
- National Engineering Research Center of Personalized Diagnostic and Therapeutic TechnologyChangshaChina
- Furong LaboratoryChangshaChina
- Hunan Key Laboratory of Skin Cancer and PsoriasisHunan Engineering Research Center of Skin Health and DiseaseXiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital)ChangshaChina
| | - Cong Peng
- Department of DermatologyXiangya HospitalCentral South UniversityChangshaChina
- National Engineering Research Center of Personalized Diagnostic and Therapeutic TechnologyChangshaChina
- Furong LaboratoryChangshaChina
- Hunan Key Laboratory of Skin Cancer and PsoriasisHunan Engineering Research Center of Skin Health and DiseaseXiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital)ChangshaChina
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Transcription of Autophagy Associated Gene Expression as Possible Predictors of a Colorectal Cancer Prognosis. Biomedicines 2023; 11:biomedicines11020418. [PMID: 36830954 PMCID: PMC9952998 DOI: 10.3390/biomedicines11020418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/26/2023] [Accepted: 01/27/2023] [Indexed: 02/04/2023] Open
Abstract
(1) Background: Autophagy plays a dual role in oncogenesis-it contributes to the growth of the tumor and can inhibit its development. The aim of this study was to assess changes in the transcriptional activity of LAMP-2, BECN1, PINK1, and FOXO1 genes involved in the autophagy process in histopathologically confirmed adenocarcinoma sections of colorectal cancer: (2) Methods: A gene expression profile analysis was performed using HG-U133A and the RT-qPCR reaction. The transcriptional activity of genes was compared in sections of colorectal cancer in the four clinical stages (CSI-CSIV) concerning the control group; (3) Results: In CSI, the transcriptional activity of the PINK1 gene is highest; in CS II, the LAMP-2 gene is highest, while FOXO1 increases gradually from CSI reaching a maximum in CSIII. There is no BECN1 gene expression in colorectal cancer cells; (4) Conclusions: The observed differences in the mRNA concentration profile of autophagy-related genes in colon cancer specimens may indicate the role of autophagy in the pathogenesis of this cancer. Genes involved in autophagy may be diagnostic tools for colorectal cancer screening and personalized therapy in the future.
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Nguyen T, Guo R, Chai J, Wu J, Liu J, Chen X, Abdel-Rahman MA, Xia H, Xu X. Smp24, a Scorpion-Venom Peptide, Exhibits Potent Antitumor Effects against Hepatoma HepG2 Cells via Multi-Mechanisms In Vivo and In Vitro. Toxins (Basel) 2022; 14:toxins14100717. [PMID: 36287985 PMCID: PMC9607800 DOI: 10.3390/toxins14100717] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/08/2022] [Accepted: 10/18/2022] [Indexed: 11/06/2022] Open
Abstract
Scorpion-venom-derived peptides have become a promising anticancer agent due to their cytotoxicity against tumor cells via multiple mechanisms. The suppressive effect of the cationic antimicrobial peptide Smp24, which is derived from the venom of ScorpioMaurus palmatus, on the proliferation of the hepatoma cell line HepG2 has been reported earlier. However, its mode of action against HepG2 hepatoma cells remains unclear. In the current research, Smp24 was discovered to suppress the viability of HepG2 cells while having a minor effect on normal LO2 cells. Moreover, endocytosis and pore formation were demonstrated to be involved in the uptake of Smp24 into HepG2 cells, which subsequently interacted with the mitochondrial membrane and caused the decrease in its potential, cytoskeleton reorganization, ROS accumulation, mitochondrial dysfunction, and alteration of apoptosis- and autophagy-related signaling pathways. The protecting activity of Smp24 in the HepG2 xenograft mice model was also demonstrated. Therefore, our data suggest that the antitumor effect of Smp24 is closely related to the induction of cell apoptosis, cycle arrest, and autophagy via cell membrane disruption and mitochondrial dysfunction, suggesting a potential alternative in hepatocellular carcinoma treatment.
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Affiliation(s)
- Tienthanh Nguyen
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Ruiyin Guo
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jinwei Chai
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jiena Wu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Junfang Liu
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Xin Chen
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | | | - Hu Xia
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
- Correspondence: (H.X.); (X.X.); Tel.: +86-20-61648537 (X.X.)
| | - Xueqing Xu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
- Correspondence: (H.X.); (X.X.); Tel.: +86-20-61648537 (X.X.)
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Sriratanasak N, Wattanathana W, Chanvorachote P. 6,6′-((Methylazanedyl)bis(methylene))bis(2,4-dimethylphenol) Induces Autophagic Associated Cell Death through mTOR-Mediated Autophagy in Lung Cancer. Molecules 2022; 27:molecules27196230. [PMID: 36234769 PMCID: PMC9572635 DOI: 10.3390/molecules27196230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/07/2022] [Accepted: 09/19/2022] [Indexed: 01/18/2023] Open
Abstract
Autophagy is the multistep mechanism for the elimination of damaged organelles and misfolded proteins. This mechanism is preceded and may induce other program cell deaths such as apoptosis. This study unraveled the potential pharmacological effect of 24MD in inducing the autophagy of lung cancer cells. Results showed that 24MD was concomitant with autophagy induction, indicating by autophagosome staining and the induction of ATG5, ATG7 and ubiquitinated protein, p62 expression after 12-h treatment. LC3-I was strongly conversed to LC3-II, and p62 was downregulated after 24-h treatment. The apoptosis-inducing activity was found after 48-h treatment as indicated by annexin V-FITC/propidium iodide staining and the activation of caspase-3. From a mechanistic perspective, 24-h treatment of 24MD at 60 μM substantially downregulated p-mTOR. Meanwhile, p-PI3K and p-Akt were also suppressed by 24MD at concentrations of 80 and 100 μM, respectively. We further confirmed m-TOR-mediated autophagic activity by comparing the effect of 24MD with rapamycin, a potent standard mTOR1 inhibitor through Western blot and immunofluorescence assays. Although 24MD could not suppress p-mTOR as much as rapamycin, the combination of rapamycin and 24MD could increase the mTOR suppressive activity and LC3 activation. Changing the substituent groups (R groups) from dimethylphenol to ethylphenol in EMD or changing methylazanedyl to cyclohexylazanedyl in 24CD could only induce apoptosis activity but not autophagic inducing activity. We identified 24MD as a novel compound targeting autophagic cell death by affecting mTOR-mediated autophagy.
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Affiliation(s)
- Nicharat Sriratanasak
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Bangkok 10330, Thailand
- Center of Excellence in Cancer Cell and Molecular Biology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Worawat Wattanathana
- Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Ladyao, Chatuchak, Bangkok 10900, Thailand
| | - Pithi Chanvorachote
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Bangkok 10330, Thailand
- Center of Excellence in Cancer Cell and Molecular Biology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
- Correspondence:
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Effects of Vestibular Damage on the Sleep and Expression Level of Orexin in the Hypothalamus of Rats and Its Correlation with Autophagy and Akt Tumor Signal Pathway. JOURNAL OF ONCOLOGY 2022; 2022:2514555. [PMID: 35794987 PMCID: PMC9251148 DOI: 10.1155/2022/2514555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 03/10/2022] [Accepted: 04/25/2022] [Indexed: 11/18/2022]
Abstract
The aim of this study was to investigate the effect of vestibular disruption on autophagy-related proteins and the tumour-associated pathway P13K/Akt in rat sleep and its hypothalamus tissue and to examine whether catechins trigger tumour autophagy. Healthy adult male rats were randomly selected and divided into the vestibular damage group, the sham operation group, and the control group, with 8 rats in each group. A vestibular damage model was established through penetrating the tympanic membrane of the external auditory canal by injecting sodium p-aminophenylarsonate. The electroencephalogram (EGG) activity was used to record the sleep-wakefulness cycle of rats, and the expression levels of hypothalamic orexin (orexin) mRNA and autophagy proteins were detected. Primary hippocampal neurons were intervened with orexin at different concentrations and at different times to detect cell viability and the expression of autophagy protein and P13K/Akt signal pathway protein. The results showed that compared with the control group and the sham operation group, NREM duration in the vestibular damage group decreased significantly (P < 0.05), while its W time increased significantly (P < 0.05). The expression level of orexin mRNA in the hypothalamus of the vestibular damage group was significantly higher than that of the other two groups (P < 0.05), the expression of autophagy microtubule-related proteins LC3B and Beclin-1 increased significantly (P < 0.05), and the protein expression level of p62 decreased significantly (P < 0.05). After orexin intervention, compared with the control group, the expression of Beclin-1 protein that positively correlated with autophagy decreased significantly (P < 0.05) and the expression of mTOR, PDK1, and Akt protein increased significantly (P < 0.05). Compared with the orexin intervention group, the expression of Beclin-1 and LC3B proteins in cells of the orexin receptor inhibitor (Almorexant) group, the autophagy activator (Rapamycin) group, the orexin + Almorexant group, and the orexin + Rapamycin group increased significantly (P < 0.05), and the expression of mTOR, PDK1, and Akt proteins decreased significantly (P < 0.05). Catechins trigger autophagy in part by regulating the p-Akt/p-mTOR and P13K pathways and by stimulating the MAPK pathway. Catechins initiate apoptosis in common tumour types of hepatocellular carcinoma cells by activating autophagy-related pathways. The conclusion is that vestibular damage can affect the sleep-wakefulness cycle of rats; the level of autophagy in hypothalamic tissue is upregulated and may affect cell proliferation and activity through mTOR-P13K/Akt, which has a certain reference value for tumor formation and provides a basis for the research of insomnia or sleep disorders caused by tumors. Autophagy activation is a key process by which catechins promote apoptosis in tumour cells, providing an avenue for more research on the use of catechins-rich diets for cardiovascular protection in the treatment of tumours.
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Al-Bari AA. Inhibition of autolysosomes by repurposing drugs as a promising therapeutic strategy for the treatment of cancers. ALL LIFE 2022. [DOI: 10.1080/26895293.2022.2078894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Abdul Alim Al-Bari
- Department of Pharmacy, Faculty of Science, University of Rajshahi, Rajshahi, Bangladesh
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Abd El-Aziz YS, Gillson J, Jansson PJ, Sahni S. Autophagy: A promising target for triple negative breast cancers. Pharmacol Res 2021; 175:106006. [PMID: 34843961 DOI: 10.1016/j.phrs.2021.106006] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/16/2021] [Accepted: 11/23/2021] [Indexed: 01/18/2023]
Abstract
Triple negative breast cancer (TNBC) is the most aggressive type of breast cancers which constitutes about 15% of all breast cancer cases and characterized by negative expression of hormonal receptors and human epidermal growth factor receptor 2 (HER2). Thus, endocrine and HER2 targeted therapies are not effective toward TNBCs, and they mainly rely on chemotherapy and surgery for treatment. Despite recent advances in chemotherapy, 40% of TNBC patients develop a metastatic relapse and recurrence. Therefore, understanding the molecular profile of TNBC is warranted to identify targets that can be selected for the development of a new and effective therapeutic approach. Autophagy is an internal defensive mechanism that allows the cells to survive under different stressors. It has been well known that autophagy exerts a crucial role in cancer progression. The critical role of autophagy in TNBC progression is emerging in recent years. This review will discuss autophagic pathway, how autophagy affects TNBC progression and recent therapeutic approaches that can target autophagy as a new treatment modality.
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Affiliation(s)
- Yomna S Abd El-Aziz
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia; Kolling Institute of Medical Research, St Leonards, NSW, Australia; Oral Pathology Department, Faculty of Dentistry, Tanta University, Tanta, Egypt
| | - Josef Gillson
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia; Kolling Institute of Medical Research, St Leonards, NSW, Australia
| | - Patric J Jansson
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia; Kolling Institute of Medical Research, St Leonards, NSW, Australia; Cancer Drug Resistance and Stem Cell Program, University of Sydney, Sydney, NSW 2006, Australia
| | - Sumit Sahni
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia; Kolling Institute of Medical Research, St Leonards, NSW, Australia.
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11
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Crosstalk between Autophagy and Inflammatory Processes in Cancer. Life (Basel) 2021; 11:life11090903. [PMID: 34575052 PMCID: PMC8466094 DOI: 10.3390/life11090903] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/25/2021] [Accepted: 08/28/2021] [Indexed: 12/18/2022] Open
Abstract
Inflammation is an adaptive response to tissue injury, which is a critical process in order to restore tissue functionality and homeostasis. The association between inflammation and cancer has been a topic of interest for many years, not only inflammatory cells themselves but also the chemokines and cytokines they produce, which affect cancer development. Autophagy is an intracellular self-degradative process providing elimination of damaged or dysfunctional organelles under stressful conditions such as nutrient deficiency, hypoxia, or chemotherapy. Interestingly, the signaling pathways that are involved in cancer-associated inflammation may regulate autophagy as well. These are (1) the toll-like receptor (TLR) signaling cascade, (2) the reactive oxygen species (ROS) signaling pathway, (3) the inflammatory cytokine signaling pathway, and (4) the IκB kinase (IKK)/Nuclear factor-κB (NF-κB) signaling axis. Moreover, the studies on the context-specific functions of autophagy during inflammatory responses in cancer will be discussed here. On that basis, we focus on autophagy inhibitors and activators regulating inflammatory process in cancer as useful candidates for enhancing anticancer effects. This review summarizes how the autophagic process regulates these key inflammatory processes and vice versa in various cancers.
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12
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Usman RM, Razzaq F, Akbar A, Farooqui AA, Iftikhar A, Latif A, Hassan H, Zhao J, Carew JS, Nawrocki ST, Anwer F. Role and mechanism of autophagy-regulating factors in tumorigenesis and drug resistance. Asia Pac J Clin Oncol 2021; 17:193-208. [PMID: 32970929 DOI: 10.1111/ajco.13449] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 07/26/2020] [Indexed: 12/19/2022]
Abstract
A hallmark feature of tumorigenesis is uncontrolled cell division. Autophagy is regulated by more than 30 genes and it is one of several mechanisms by which cells maintain homeostasis. Autophagy promotes cancer progression and drug resistance. Several genes play important roles in autophagy-induced tumorigenesis and drug resistance including Beclin-1, MIF, HMGB1, p53, PTEN, p62, RAC3, SRC3, NF-2, MEG3, LAPTM4B, mTOR, BRAF and c-MYC. These genes alter cell growth, cellular microenvironment and cell division. Mechanisms involved in tumorigenesis and drug resistance include microdeletions, genetic mutations, loss of heterozygosity, hypermethylation, microsatellite instability and translational modifications at a molecular level. Disrupted or altered autophagy has been reported in hematological malignancies like lymphoma, leukemia and myeloma as well as multiple solid organ tumors like colorectal, hepatocellular, gall bladder, pancreatic, gastric and cholangiocarcinoma among many other malignancies. In addition, defects in autophagy also play a role in drug resistance in cancers like osteosarcoma, ovarian and lung carcinomas following treatment with drugs such as doxorubicin, paclitaxel, cisplatin, gemcitabine and etoposide. Therapeutic approaches that modulate autophagy are a novel future direction for cancer drug development that may help to prevent issues with disease progression and overcome drug resistance.
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Affiliation(s)
- Rana Muhammad Usman
- Department of Medicine, The University of Tennessee Health Sciences Center, Memphis, TN, USA
| | - Faryal Razzaq
- Foundation University Medical College, Islamabad, Pakistan
| | - Arshia Akbar
- Department of Medical Intensive Care, Holy Family Hospital, Rawalpindi, Pakistan
| | | | - Ahmad Iftikhar
- Department of Medicine, The University of Arizona, Tucson, AZ, USA
| | - Azka Latif
- Department of Medicine, Crieghton University, Omaha, NE, USA
| | - Hamza Hassan
- Department of Hematology & Medical Oncology, Boston University Medical Center, Boston, MA, USA
| | - Jianjun Zhao
- Taussig Cancer Center, Cleveland Clinic, Cleveland, OH, USA
| | - Jennifer S Carew
- Department of Medicine, The University of Arizona, Tucson, AZ, USA
| | | | - Faiz Anwer
- Taussig Cancer Center, Cleveland Clinic, Cleveland, OH, USA
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13
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Prerna K, Dubey VK. Repurposing of FDA-approved drugs as autophagy inhibitors in tumor cells. J Biomol Struct Dyn 2021; 40:5815-5826. [PMID: 33467992 DOI: 10.1080/07391102.2021.1873862] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Autophagy and apoptosis are the two crucial processes of programmed cell death found in all eukaryotic cells; however, the elevated physiological stress in the tumor microenvironment leads to uncontrolled up-regulation in the process of autophagy. Available literatures suggest that inhibiting up-regulated autophagy in the cancerous cells may lead to the apoptosis and thereby culminate to tumor clearance. Several studies have been performed to design autophagy-inhibitors using either Beclin-1 or Bcl-2 as a target in isolation. However, to overcome the constraints of the availability of small and potent autophagy inhibitors, we have attempted extensive computational approach of repurposing the FDA-approved drugs from the ZINC database in order to inhibit the interaction between the Beclin1 and Bcl-2. Out of 1565 FDA-approved drugs used in our computational work, we sorted the drugs Ponatinib, Simeprevir, and Nilotinib through various methods viz. molecular docking, Lipinski's filter, MD simulation and MM/PBSA, and we found these aforementioned drugs to show good binding energy and favorable interaction with the BH3 domain of Beclin1. We anticipate from our computational results that these drugs may become potent candidates to inhibit autophagy and exhibit the apoptosis in the tumor microenvironment and combat the current limitation of potent autophagy inhibitors; however, to substantiate our in-silico results, further experimental validations of these drug molecules are currently in progress.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Kumari Prerna
- School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi, India
| | - Vikash Kumar Dubey
- School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi, India
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14
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Cocco S, Leone A, Piezzo M, Caputo R, Di Lauro V, Di Rella F, Fusco G, Capozzi M, Gioia GD, Budillon A, De Laurentiis M. Targeting Autophagy in Breast Cancer. Int J Mol Sci 2020; 21:E7836. [PMID: 33105796 PMCID: PMC7660056 DOI: 10.3390/ijms21217836] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/19/2020] [Accepted: 10/21/2020] [Indexed: 02/07/2023] Open
Abstract
Breast cancer is a heterogeneous disease consisting of different biological subtypes, with differences in terms of incidence, response to diverse treatments, risk of disease progression, and sites of metastases. In the last years, several molecular targets have emerged and new drugs, targeting PI3K/Akt/mTOR and cyclinD/CDK/pRb pathways and tumor microenvironment have been integrated into clinical practice. However, it is clear now that breast cancer is able to develop resistance to these drugs and the identification of the underlying molecular mechanisms is paramount to drive further drug development. Autophagy is a highly conserved homeostatic process that can be activated in response to antineoplastic agents as a cytoprotective mechanism. Inhibition of autophagy could enhance tumor cell death by diverse anti-cancer therapies, representing an attractive approach to control mechanisms of drug resistance. In this manuscript, we present a review of autophagy focusing on its interplay with targeted drugs used for breast cancer treatment.
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Affiliation(s)
- Stefania Cocco
- Breast Unit, Istituto Nazionale Tumori IRCCS “Fondazione G. Pascale”, Via Mariano Semmola 53, 80131 Napoli, Italy; (M.P.); (R.C.); (V.D.L.); (F.D.R.); (G.F.); (M.C.); (G.d.G.)
| | - Alessandra Leone
- Experimental Pharmacology Unit, Istituto Nazionale Tumori IRCCS “Fondazione G. Pascale”, Via Mariano Semmola 53, 80131 Napoli, Italy; (A.L.); (A.B.)
| | - Michela Piezzo
- Breast Unit, Istituto Nazionale Tumori IRCCS “Fondazione G. Pascale”, Via Mariano Semmola 53, 80131 Napoli, Italy; (M.P.); (R.C.); (V.D.L.); (F.D.R.); (G.F.); (M.C.); (G.d.G.)
| | - Roberta Caputo
- Breast Unit, Istituto Nazionale Tumori IRCCS “Fondazione G. Pascale”, Via Mariano Semmola 53, 80131 Napoli, Italy; (M.P.); (R.C.); (V.D.L.); (F.D.R.); (G.F.); (M.C.); (G.d.G.)
| | - Vincenzo Di Lauro
- Breast Unit, Istituto Nazionale Tumori IRCCS “Fondazione G. Pascale”, Via Mariano Semmola 53, 80131 Napoli, Italy; (M.P.); (R.C.); (V.D.L.); (F.D.R.); (G.F.); (M.C.); (G.d.G.)
| | - Francesca Di Rella
- Breast Unit, Istituto Nazionale Tumori IRCCS “Fondazione G. Pascale”, Via Mariano Semmola 53, 80131 Napoli, Italy; (M.P.); (R.C.); (V.D.L.); (F.D.R.); (G.F.); (M.C.); (G.d.G.)
| | - Giuseppina Fusco
- Breast Unit, Istituto Nazionale Tumori IRCCS “Fondazione G. Pascale”, Via Mariano Semmola 53, 80131 Napoli, Italy; (M.P.); (R.C.); (V.D.L.); (F.D.R.); (G.F.); (M.C.); (G.d.G.)
| | - Monica Capozzi
- Breast Unit, Istituto Nazionale Tumori IRCCS “Fondazione G. Pascale”, Via Mariano Semmola 53, 80131 Napoli, Italy; (M.P.); (R.C.); (V.D.L.); (F.D.R.); (G.F.); (M.C.); (G.d.G.)
| | - Germira di Gioia
- Breast Unit, Istituto Nazionale Tumori IRCCS “Fondazione G. Pascale”, Via Mariano Semmola 53, 80131 Napoli, Italy; (M.P.); (R.C.); (V.D.L.); (F.D.R.); (G.F.); (M.C.); (G.d.G.)
| | - Alfredo Budillon
- Experimental Pharmacology Unit, Istituto Nazionale Tumori IRCCS “Fondazione G. Pascale”, Via Mariano Semmola 53, 80131 Napoli, Italy; (A.L.); (A.B.)
| | - Michelino De Laurentiis
- Breast Unit, Istituto Nazionale Tumori IRCCS “Fondazione G. Pascale”, Via Mariano Semmola 53, 80131 Napoli, Italy; (M.P.); (R.C.); (V.D.L.); (F.D.R.); (G.F.); (M.C.); (G.d.G.)
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15
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Al-Bari MAA. Co-targeting of lysosome and mitophagy in cancer stem cells with chloroquine analogues and antibiotics. J Cell Mol Med 2020; 24:11667-11679. [PMID: 32935427 PMCID: PMC7578893 DOI: 10.1111/jcmm.15879] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 08/26/2020] [Accepted: 08/27/2020] [Indexed: 12/13/2022] Open
Abstract
The catabolic autophagy eliminates cytoplasmic components and organelles via lysosomes. Non‐selective bulk autophagy and selective autophagy (mitophagy) are linked in intracellular homeostasis both normal and cancer cells. Autophagy has complex and paradoxical dual role in cancers; it can play either tumour suppressor or tumour promoter depending on the tumour type, stage, microenvironment and genetic context. Cancer stem cells (CSCs) cause tumour recurrence and promote resistant to therapy for driving poor clinical consequences. Thus, new healing strategies are urgently needed to annihilate and eradicate CSCs. As chloroquine (CQ) analogues show positive clinical outcome in several clinical trials either standalone or combination with several chemotherapies. Moreover, CQ analogues are known to eliminate CSCs via altering DNA methylation. However, several obstacles such as higher concentrations and dose‐dependent toxicity are noticeable in the treatment of cancers. As tumour cells predominantly rely on mitochondrial actions, mitochondrial targeting FDA‐approved antibiotics are reported to effectively eradicate CSCs alone or combination with chemotherapy. However, antibiotics cause metabolic glycolytic shift in cancer cells for survival and repopulation. This review will provide a sketch of the inhibiting roles of current chloroquine analogues and antibiotic combination in CSC autophagy process and discuss the possibility that pre‐clinical and clinical potential therapeutic strategy for anticancer therapy.
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16
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Li X, He S, Ma B. Autophagy and autophagy-related proteins in cancer. Mol Cancer 2020; 19:12. [PMID: 31969156 PMCID: PMC6975070 DOI: 10.1186/s12943-020-1138-4] [Citation(s) in RCA: 791] [Impact Index Per Article: 197.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 01/16/2020] [Indexed: 12/19/2022] Open
Abstract
Autophagy, as a type II programmed cell death, plays crucial roles with autophagy-related (ATG) proteins in cancer. Up to now, the dual role of autophagy both in cancer progression and inhibition remains controversial, in which the numerous ATG proteins and their core complexes including ULK1/2 kinase core complex, autophagy-specific class III PI3K complex, ATG9A trafficking system, ATG12 and LC3 ubiquitin-like conjugation systems, give multiple activities of autophagy pathway and are involved in autophagy initiation, nucleation, elongation, maturation, fusion and degradation. Autophagy plays a dynamic tumor-suppressive or tumor-promoting role in different contexts and stages of cancer development. In the early tumorigenesis, autophagy, as a survival pathway and quality-control mechanism, prevents tumor initiation and suppresses cancer progression. Once the tumors progress to late stage and are established and subjected to the environmental stresses, autophagy, as a dynamic degradation and recycling system, contributes to the survival and growth of the established tumors and promotes aggressiveness of the cancers by facilitating metastasis. This indicates that regulation of autophagy can be used as effective interventional strategies for cancer therapy.
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Affiliation(s)
- Xiaohua Li
- Henan Provincial People's Hospital, Zhengzhou, 450003, China.,Henan Eye Hospital, Henan Eye Institute, Henan Key Laboratory of Ophthalmology and Visual Science, Zhengzhou, 450003, China.,People's Hospital of Zhengzhou University, Zhengzhou, 450003, China.,People's Hospital of Henan University, Zhengzhou, 450003, China
| | - Shikun He
- Ophthalmology Optometry Centre, Peking University People's Hospital, Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases, Beijing, 100044, China.,Department of Pathology and Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, CA, 90033, USA
| | - Binyun Ma
- Department of Molecular Microbiology and Immunology, Keck School of Medicine of the University of Southern California, Los Angeles, CA, 90033, USA. .,Department of Medicine/Hematology, Keck School of Medicine of the University of Southern California, Los Angeles, CA, 90033, USA.
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17
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Xiang W, Zhang RJ, Jin GL, Tian L, Cheng F, Wang JZ, Xing XF, Xi W, Tang SJ, Chen JF. RCE‑4, a potential anti‑cervical cancer drug isolated from Reineckia carnea, induces autophagy via the dual blockade of PI3K and ERK pathways in cervical cancer CaSki cells. Int J Mol Med 2019; 45:245-254. [PMID: 31746346 DOI: 10.3892/ijmm.2019.4389] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 08/29/2019] [Indexed: 11/06/2022] Open
Abstract
The steroidal saponin RCE‑4 (1β, 3β, 5β, 25S)‑spirostan‑1, 3‑diol 1‑[α‑L‑rhamnopyranosyl‑(1→2)‑β‑D‑xylopyranoside], isolated from Reineckia carnea, exerts significant anti‑cervical cancer activity by inducing apoptosis. The potential effect of RCE‑4 on proliferation inhibition and autophagy induction has rarely been studied. Therefore, the focus of the present study was to investigate the effects of RCE‑4 on proliferation, and to elucidate the detailed mechanisms involved in autophagy induction in cervical cancer cells. CaSki cells were treated with RCE‑4 or/and autophagy inhibitors, and the effect of RCE‑4 on cellular proliferation was assessed by MTT assay. The pro‑autophagic properties of RCE‑4 were subsequently confirmed using monomeric red fluorescent protein‑green fluorescent protein‑microtubule‑associated proteins 1A/1B light chain 3B (LC3) adenoviruses and CYTO‑ID autophagy assays, and by assessing the accumulation of lipid‑modified LC3 (LC3II). The mechanisms of RCE‑4‑induced autophagy were investigated by western blot analysis. The results demonstrated that inhibiting autophagy significantly promoted RCE‑4‑induced cell death, indicating that autophagy served a protective role following RCE‑4 treatment. In addition, RCE‑4‑induced autophagy was reflected by increased expression levels of the serine/threonine‑protein kinase ULK1, phosphorylated (p)‑ULK1, p‑Beclin‑1 and LC3II, the formation of autophagosomes and autolysosomes, and sequestosome 1 (p62) degradation. Subsequent analysis indicated that RCE‑4 activated the AMP‑activated protein kinase (AMPK) pathway by upregulating AMPK and p‑AMPK, and also inhibited the PI3K and extracellular signal‑regulated kinase (ERK) signaling pathways by downregulating p‑PI3K, p‑Akt, p‑mTOR, Ras, c‑Raf, p‑c‑Raf, dual specificity mitogen‑activated protein kinase kinase (MEK)1/2, p‑MEK1/2 and p‑Erk1/2. Additionally, with increased treatment times RCE‑4 may impair lysosomal cathepsin activity and inhibit autophagy flux by suppressing the expression of AMPK, p‑AMPK, ULK1, p‑ULK1 and p‑Beclin‑1, and upregulating that of p62. These results indicated that the dual RCE‑4‑induced inhibition of the PI3K and ERK pathways may result in a more significant anti‑tumor effect and prevent chemoresistance, compared with the inhibition of either single pathway; furthermore, dual blockade of PI3K and ERK, and the AMPK pathway may be involved in the regulation of autophagy caused by RCE‑4. Taken together, RCE‑4 induced autophagy to protect cancer cells against apoptosis, but AMPK‑mediated autophagy was inhibited in the later stages of RCE‑4 treatment. In addition, autophagy inhibition improved the therapeutic effect of RCE‑4. These data highlight RCE‑4 as a potential candidate for cervical cancer treatment.
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Affiliation(s)
- Wei Xiang
- Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, Hubei 443002, P.R. China
| | - Ren-Jing Zhang
- Department of Pathology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Gui-Lan Jin
- The First People's Hospital of Yichang and The People's Hospital of China Three Gorges University, Yichang, Hubei 443002, P.R. China
| | - Li Tian
- Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, Hubei 443002, P.R. China
| | - Fan Cheng
- Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, Hubei 443002, P.R. China
| | - Jun-Zhi Wang
- Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, Hubei 443002, P.R. China
| | - Xiang-Fei Xing
- The First People's Hospital of Yichang and The People's Hospital of China Three Gorges University, Yichang, Hubei 443002, P.R. China
| | - Wei Xi
- The First People's Hospital of Yichang and The People's Hospital of China Three Gorges University, Yichang, Hubei 443002, P.R. China
| | - Shu-Jun Tang
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL 60616, USA
| | - Jian-Feng Chen
- Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, Hubei 443002, P.R. China
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18
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Wu CL, Liu JF, Liu Y, Wang YX, Fu KF, Yu XJ, Pu Q, Chen XX, Zhou LJ. Beclin1 inhibition enhances paclitaxel‑mediated cytotoxicity in breast cancer in vitro and in vivo. Int J Mol Med 2019; 43:1866-1878. [PMID: 30720049 DOI: 10.3892/ijmm.2019.4089] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 01/30/2019] [Indexed: 11/05/2022] Open
Abstract
Beclin1, a key regulator of autophagy, has been demonstrated to be associated with cancer cell resistance to chemotherapy. Paclitaxel is a conventional chemotherapeutic drug used in the clinical treatment of breast cancer. However, the function and mechanism of Beclin1 in paclitaxel‑mediated cytotoxicity in breast cancer are not well defined. The present study demonstrated that paclitaxel suppressed cell viability and Beclin1 expression levels in BT‑474 breast cancer cells in a dose‑ and time‑dependent fashion. Compared with the control, the knockdown of Beclin1 significantly enhanced breast cancer cell death via the induction of caspase‑dependent apoptosis following paclitaxel treatment in vitro (P<0.05). In a BT‑474 xenograft model, paclitaxel achieved substantial inhibition of tumor growth in the Beclin1 knockdown group compared with the control group. Furthermore, analysis of the publicly available Gene Expression Omnibus datasets revealed a clinical correlation between Beclin1 levels and the response to paclitaxel therapy in patients with breast cancer. Collectively, the present results suggest that Beclin1 protects breast cancer cells from apoptotic death. Thus, the inhibition of Beclin1 may be a novel way to improve the effect of paclitaxel. Additionally, Beclin1 may function as a favorable prognostic biomarker for paclitaxel treatment in patients with breast cancer.
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Affiliation(s)
- Cheng-Lin Wu
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
| | - Jian-Fei Liu
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
| | - Yan Liu
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
| | - Yu-Xiao Wang
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
| | - Kai-Fei Fu
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
| | - Xiao-Jie Yu
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
| | - Qian Pu
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
| | - Xiu-Xiu Chen
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
| | - Li-Jun Zhou
- Central Laboratory, Navy General Hospital, Beijing 100048, P.R. China
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19
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Wechman SL, Pradhan AK, DeSalle R, Das SK, Emdad L, Sarkar D, Fisher PB. New Insights Into Beclin-1: Evolution and Pan-Malignancy Inhibitor Activity. Adv Cancer Res 2017; 137:77-114. [PMID: 29405978 DOI: 10.1016/bs.acr.2017.11.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Autophagy is a functionally conserved self-degradation process that facilitates the survival of eukaryotic life via the management of cellular bioenergetics and maintenance of the fidelity of genomic DNA. The first known autophagy inducer was Beclin-1. Beclin-1 is expressed in multicellular eukaryotes ranging throughout plants to animals, comprising a nonmonophyllic group, as shown in this report via aggressive BLAST searches. In humans, Beclin-1 is a haploinsuffient tumor suppressor as biallelic deletions have not been observed in patient tumors clinically. Therefore, Beclin-1 fails the Knudson hypothesis, implicating expression of at least one Beclin-1 allele is essential for cancer cell survival. However, Beclin-1 is frequently monoallelically deleted in advanced human cancers and the expression of two Beclin-1 allelles is associated with greater anticancer effects. Overall, experimental evidence suggests that Beclin-1 inhibits tumor formation, angiogenesis, and metastasis alone and in cooperation with the tumor suppressive molecules UVRAG, Bif-1, Ambra1, and MDA-7/IL-24 via diverse mechanisms of action. Conversely, Beclin-1 is upregulated in cancer stem cells (CSCs), portending a role in cancer recurrence, and highlighting this molecule as an intriguing molecular target for the treatment of CSCs. Many aspects of Beclin-1's biological effects remain to be studied. The consequences of these BLAST searches on the molecular evolution of Beclin-1, and the eukaryotic branches of the tree of life, are discussed here in greater detail with future inquiry focused upon protist taxa. Also in this review, the effects of Beclin-1 on tumor suppression and cancer malignancy are discussed. Beclin-1 holds significant promise for the development of novel targeted cancer therapeutics and is anticipated to lead to a many advances in our understanding of eukaryotic evolution, multicellularity, and even the treatment of CSCs in the coming decades.
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Affiliation(s)
- Stephen L Wechman
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - Anjan K Pradhan
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - Rob DeSalle
- Sackler Institute for Comparative Genomics, American Museum of Natural History, New York, NY, United States
| | - Swadesh K Das
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - Luni Emdad
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - Devanand Sarkar
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - Paul B Fisher
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States.
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20
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Ye C, Yu X, Liu X, Zhan P, Nie T, Guo R, Liu H, Dai M, Zhang B. Beclin-1 knockdown decreases proliferation, invasion and migration of Ewing sarcoma SK-ES-1 cells via inhibition of MMP-9. Oncol Lett 2017; 15:3221-3225. [PMID: 29435061 DOI: 10.3892/ol.2017.7667] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 11/02/2017] [Indexed: 01/07/2023] Open
Abstract
Although Beclin-1, a well-known key regulator of autophagy, has been demonstrated to serve a function in a number of disorders, including cancer, aging and degenerative diseases, its biological function in Ewing sarcoma (ES) remains unresolved. The objective of the present study was to determine the in vitro effect of Beclin-1 knockdown on the growth and malignant phenotype of ES SK-ES-1 cells, which have increased endogenous expression of Beclin-1 compared with RD-ES cells, and to investigate the underlying molecular mechanism. Cell proliferation, invasion and migration were investigated using CCK-8, Boyden chamber Transwell, and wound healing assays, respectively. Western blot analysis was used to detect expression levels of matrix metalloproteinase (MMP)-2 and MMP-9, which are associated with the malignant phenotype. Beclin-1 knockdown significantly inhibited proliferation, invasion and migration of SK-ES-1 cells. Western blot analysis revealed that Beclin-1 knockdown caused a significant reduction in the expression of MMP-9; no marked changes in MMP-2 expression were observed in the si-Beclin-1 group compared with the control group. The results of the present study suggest that Beclin-1 serves a function in proliferation, tumor progression and inhibition of autophagy in ES, and demonstrates it's potential as a target to increase the efficacy of anticancer agents.
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Affiliation(s)
- Conglin Ye
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Artificial Joints Engineering and Technology Research Center of Jiangxi, Nanchang, Jiangxi 330006, P.R. China
| | - Xiaolong Yu
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Artificial Joints Engineering and Technology Research Center of Jiangxi, Nanchang, Jiangxi 330006, P.R. China
| | - Xuqiang Liu
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Artificial Joints Engineering and Technology Research Center of Jiangxi, Nanchang, Jiangxi 330006, P.R. China
| | - Ping Zhan
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Artificial Joints Engineering and Technology Research Center of Jiangxi, Nanchang, Jiangxi 330006, P.R. China
| | - Tao Nie
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Artificial Joints Engineering and Technology Research Center of Jiangxi, Nanchang, Jiangxi 330006, P.R. China
| | - Runsheng Guo
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Artificial Joints Engineering and Technology Research Center of Jiangxi, Nanchang, Jiangxi 330006, P.R. China
| | - Hucheng Liu
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Artificial Joints Engineering and Technology Research Center of Jiangxi, Nanchang, Jiangxi 330006, P.R. China
| | - Min Dai
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Artificial Joints Engineering and Technology Research Center of Jiangxi, Nanchang, Jiangxi 330006, P.R. China
| | - Bin Zhang
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Artificial Joints Engineering and Technology Research Center of Jiangxi, Nanchang, Jiangxi 330006, P.R. China
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21
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Zheng W, Zhao Z, Yi X, Zuo Q, Li H, Guo X, Li D, He H, Pan Z, Fan P, Li F, Liao Y, Shao R. Down-regulation of IFITM1 and its growth inhibitory role in cervical squamous cell carcinoma. Cancer Cell Int 2017; 17:88. [PMID: 29051711 PMCID: PMC5633880 DOI: 10.1186/s12935-017-0456-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 09/20/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cervical cancer is a major cause of death in women worldwide. Interferon-induced transmembrane protein 1 (IFITM1) is involved in antivirus defense, cell adhesion, and carcinogenesis in different tissues. However, the role of IFITM1 gene in cervical squamous cell cancer is unclear. METHODS To explore the role of IFITM1 in carcinogenesis of cervical cancer, we investigated the expression of IFITM1 gene in cervical squamous cell carcinoma. IFITM1 mRNA level was measured by real-time quantitative RT-PCR in cervical cancer tissues and their adjacent normal tissues. IFITM1 protein level was measured by immunohistochemistry. Methylation in the IFITM1 gene promoter was detected by methylation-specific PCR. We then transfected HeLa cells with IFITM1 expression vector or control vector. IFITM1 expression was examined; cell migration and invasion were analyzed by wound healing assay and matrigel-coated transwell migration assays, respectively. HeLa cell proliferation was measured by cell counting kit-8 assay and cell cycle analysis. Cell apoptosis was analyzed by Annexin V/propidium iodide double staining assay. RESULTS The difference in IFITM1 protein expression between samples from chronic cervicitis and cervical carcinoma was statistically significant (P < 0.01). Ki-67 and PCNA protein expression levels were significantly higher in cervical cancer tissues than in their corresponding cervicitis tissues (P < 0.05 and P < 0.001, respectively). IFITM1 mRNA level was significantly lower in cervical cancer tissues than in normal cervical tissues (P < 0.05). Methylation of the IFITM1 gene promoter was significantly higher in cervical cancer than in normal cervical tissues (P < 0.05). Transfection of the IFITM1 pcDNA3.1 construct decreased cell migration and invasion of HeLa cells, inhibited cell proliferation, and increased cell apoptosis. CONCLUSION IFITM1 gene expression may reduce the proliferation, migration, and invasion of cervical squamous cancer cells.
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Affiliation(s)
- Weinan Zheng
- Department of Biochemistry and Molecular Biology, Department of Human Anatomy and Histology and Embryology, Basic Medical Science of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China.,Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Zhimin Zhao
- Department of Biochemistry and Molecular Biology, Department of Human Anatomy and Histology and Embryology, Basic Medical Science of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China.,Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Xinan Yi
- Department of Human Anatomy, Basic Medical Science Division, Hainan Medical University, Haikou, 571100 Hainan China
| | - Qiangqiang Zuo
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Hongtao Li
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Xiaoqing Guo
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Dongmei Li
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Hongchang He
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Zemin Pan
- Department of Biochemistry and Molecular Biology, Department of Human Anatomy and Histology and Embryology, Basic Medical Science of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China.,Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China.,Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Shihezi, China
| | - Peiwen Fan
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Feng Li
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Yanhong Liao
- Department of Biochemistry and Molecular Biology, Department of Human Anatomy and Histology and Embryology, Basic Medical Science of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Renfu Shao
- Genecology Research Centre, Centre for Animal Health Innovation, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore, DC, QLD 4558 Australia
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22
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Tian M, Chen Y, Tian D, Qiao X, Ma Z, Li J. Beclin1 antagonizes LAPTM4B-mediated EGFR overactivation in gastric cancer cells. Gene 2017; 626:48-53. [PMID: 28479384 DOI: 10.1016/j.gene.2017.05.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 04/06/2017] [Accepted: 05/03/2017] [Indexed: 12/24/2022]
Abstract
Beclin1 is an essential autophagy regulator and a haploinsufficient tumor-suppressor. Reduced Berclin1 expression has been associated with many types of human malignancies including gastric cancer. However, the mechanism of how Beclin1 represses tumorigenesis of gastric cancer remains elusive. In recent proteomics study, we found that Beclin1 is associated with Lysosome-associated transmembrane protein 4β (LAPTM4B). LAPTM4B plays an important role in promoting the growth and proliferation of tumor cells, it is overexpressed in a variety of solid tumors and serves as a biomarker for tumor therapy. Further analysis showed that Beclin1 interacts with both the N- and C-termini of LAPTM4B and this interaction is independent of Vps34 complex. We demonstrated that Beclin1 competes with Epidermal growth factor receptor (EGFR) for LAPTM4B binding and Beclin1 can repress the LAPTM4B mediated EGFR activation and gastric cancer cell growth. Taken together, our study proposes a role of Beclin1 in repressing gastric cancer through disrupting the oncogenic promoting function of LAPTM4B.
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Affiliation(s)
- Miao Tian
- Department of Gynaecology and Obstetrics, Second Hospital of Jilin University, Changchun, China
| | - Yu Chen
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Dan Tian
- Department of Anesthesiology, Second hospital of Jilin University, Changchun, China
| | - Xiaofang Qiao
- Department of Gastrointestinal Surgery, Second hospital of Jilin University, Changchun, China
| | - Zhiming Ma
- Department of Gastrointestinal Surgery, Second hospital of Jilin University, Changchun, China
| | - Jinlong Li
- Department of Gastrointestinal Surgery, Second hospital of Jilin University, Changchun, China.
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23
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Yang M, Bai L, Yu W, Sun X, Xu G, Guan R, Yang Y, Qiu M, Zhang Y, Tian J, Fang H. Expression of autophagy-associated proteins in papillary thyroid carcinoma. Oncol Lett 2017; 14:411-415. [PMID: 28693184 DOI: 10.3892/ol.2017.6101] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 03/21/2017] [Indexed: 12/16/2022] Open
Abstract
The present study was designed to assess the protein expression of the autophagy-associated genes, Beclin-1 and microtubule-associated protein 1 light chain 3 (LC3)-II, as well as the association with clinicopathological features in papillary thyroid carcinoma (PTC). A total of 50 subjects were recruited, including 50 human PTC samples and paired adjacent noncancerous tissue samples. The protein expression of Beclin-1 and LC3-II was analyzed using immunohistochemistry and western blotting. Beclin-1 and LC3-II expression in PTC tissues significantly reduced compared with normal tissues (P<0.05). Expression of Beclin-1 and LC3-II was associated with lymph node metastasis of PTC (P<0.05), but had no association with age, gender, tumor size, tumor number and Tumor-Node-Metastasis stage (P>0.05). Expression of Beclin-1 and LC3-II were positively correlated (r=0.327;P=0.020) in PTC. In conclusion, the activity of autophagy was declined in PTC; this decrease in autophagic capacity may be associated with tumorigenesis and the development of PTC.
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Affiliation(s)
- Meiliu Yang
- Department of Medical Experimental Center, North China University of Science and Technology, Tangshan, Hebei 063000, P.R. China
| | - Lu Bai
- Department of Medical Experimental Center, North China University of Science and Technology, Tangshan, Hebei 063000, P.R. China
| | - Wu Yu
- Department of Surgery, Qianan Yejituo Hospital, Qianan, Hebei 064400, P.R. China
| | - Xueling Sun
- Department of Endocrinology, Tangshan Worker Hospital, Tangshan, Hebei 063000, P.R. China
| | - Gang Xu
- Department of Burn, Tangshan Worker Hospital, Tangshan, Hebei 063000, P.R. China
| | - Ruhua Guan
- Department of Endocrinology, Hebei Yanda Hospital, San He, Hebei 065201, P.R. China
| | - Ying Yang
- Department of Endocrinology, Tangshan Worker Hospital, Tangshan, Hebei 063000, P.R. China
| | - Mingyue Qiu
- Department of Endocrinology, Tangshan Worker Hospital, Tangshan, Hebei 063000, P.R. China
| | - Yazhong Zhang
- Department of Endocrinology, Tangshan Worker Hospital, Tangshan, Hebei 063000, P.R. China
| | - Jinli Tian
- Department of Endocrinology, Tangshan Worker Hospital, Tangshan, Hebei 063000, P.R. China
| | - Hui Fang
- Department of Endocrinology, Tangshan Worker Hospital, Tangshan, Hebei 063000, P.R. China
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24
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Chen YF, Liu H, Luo XJ, Zhao Z, Zou ZY, Li J, Lin XJ, Liang Y. The roles of reactive oxygen species (ROS) and autophagy in the survival and death of leukemia cells. Crit Rev Oncol Hematol 2017; 112:21-30. [PMID: 28325262 DOI: 10.1016/j.critrevonc.2017.02.004] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 11/27/2016] [Accepted: 02/06/2017] [Indexed: 02/07/2023] Open
Abstract
As a clonal disease of hematopoietic stem cells (HSCs), the etiology and pathogenesis of leukemia is not fully understood. Recent studies suggest that cellular homeostasis plays an essential role in maintaining the function of HSCs because dysregulation of cellular homeostasis is one of the major factors underlying the malignant transformation of HSCs. Reactive oxygen species (ROS) and autophagy, key factors regulating cellular homeostasis, are commonly observed in the human body. Autophagy can be induced by ROS through a variety of signaling pathways, and conversely inhibits ROS-induced damage to cells and tissues. ROS and autophagy coordinate to maintain cellular homeostasis. Previous studies have demonstrated that both of ROS and autophagy play important roles in the development of leukemia and are closely involved in drug resistance in leukemia. Interference with cellular homeostasis by promoting programmed leukemia cell death via ROS and autophagy has been verified to be an efficient technique in the treatment of leukemia. However, the critical roles of ROS and autophagy in the development of leukemia are largely unknown. In this review, we summarize the roles of ROS and autophagy in the pathogenesis of leukemia, which may allow the identification of novel targets and drugs for the treatment of leukemia based on the regulation of HSCs homeostasis through ROS and autophagy.
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Affiliation(s)
- Yong-Feng Chen
- Department of Basic Medical Sciences, School of Medicine of Taizhou University, Taizhou 318000, Zhejiang, China; Institute of Tumor, School of Medicine of Taizhou University, Taizhou 318000, Zhejiang, China.
| | - Hao Liu
- School of Pharmacy, Shanghai Jiaotong University, Shanghai 200240, China
| | - Xin-Jing Luo
- Department of Basic Medical Sciences, School of Medicine of Taizhou University, Taizhou 318000, Zhejiang, China; Institute of Tumor, School of Medicine of Taizhou University, Taizhou 318000, Zhejiang, China
| | - Zhiqiang Zhao
- Department of Basic Medical Sciences, School of Medicine of Taizhou University, Taizhou 318000, Zhejiang, China; Institute of Tumor, School of Medicine of Taizhou University, Taizhou 318000, Zhejiang, China
| | - Zhen-You Zou
- Department of Basic Medical Sciences, School of Medicine of Taizhou University, Taizhou 318000, Zhejiang, China; Institute of Tumor, School of Medicine of Taizhou University, Taizhou 318000, Zhejiang, China; Biochemistry Department of Purdue University, West Lafayette, IN 47906, USA
| | - Jing Li
- Department of Histology and Embryology, North SiChuan Medical College, Nanchong 637000, Sichuan, China
| | - Xiao-Jing Lin
- Department of Hematology, the Affiliated Hospital of Guiyang Medical College, Guiyang 550004, China
| | - Yong Liang
- Institute of Tumor, School of Medicine of Taizhou University, Taizhou 318000, Zhejiang, China.
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25
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Juang V, Lee HP, Lin AMY, Lo YL. Cationic PEGylated liposomes incorporating an antimicrobial peptide tilapia hepcidin 2-3: an adjuvant of epirubicin to overcome multidrug resistance in cervical cancer cells. Int J Nanomedicine 2016; 11:6047-6064. [PMID: 27895479 PMCID: PMC5117904 DOI: 10.2147/ijn.s117618] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Antimicrobial peptides (AMPs) have been recently evaluated as a new generation of adjuvants in cancer chemotherapy. In this study, we designed PEGylated liposomes encapsulating epirubicin as an antineoplastic agent and tilapia hepcidin 2–3, an AMP, as a multidrug resistance (MDR) transporter suppressor and an apoptosis/autophagy modulator in human cervical cancer HeLa cells. Cotreatment of HeLa cells with PEGylated liposomal formulation of epirubicin and hepcidin 2–3 significantly increased the cytotoxicity of epirubicin. The liposomal formulations of epirubicin and/or hepcidin 2–3 were found to noticeably escalate the intracellular H2O2 and O2− levels of cancer cells. Furthermore, these treatments considerably reduced the mRNA expressions of MDR protein 1, MDR-associated protein (MRP) 1, and MRP2. The addition of hepcidin 2–3 in liposomes was shown to markedly enhance the intracellular epirubicin uptake and mainly localized into the nucleus. Moreover, this formulation was also found to trigger apoptosis and autophagy in HeLa cells, as validated by significant increases in the expressions of cleaved poly ADP ribose polymerase, caspase-3, caspase-9, and light chain 3 (LC3)-II, as well as a decrease in mitochondrial membrane potential. The apoptosis induction was also confirmed by the rise in sub-G1 phase of cell cycle assay and apoptosis percentage of annexin V/propidium iodide assay. We found that liposomal epirubicin and hepcidin 2–3 augmented the accumulation of GFP-LC3 puncta as amplified by chloroquine, implying the involvement of autophagy. Interestingly, the partial inhibition of necroptosis and the epithelial–mesenchymal transition by this combination was also verified. Altogether, our results provide evidence that coincubation with PEGylated liposomes of hepcidin 2–3 and epirubicin caused programmed cell death in cervical cancer cells through modulation of multiple signaling pathways, including MDR transporters, apoptosis, autophagy, and/or necroptosis. Thus, this formulation may provide a new platform for the combined treatment of traditional chemotherapy and hepcidin 2–3 as a new adjuvant for effective MDR reversal.
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Affiliation(s)
- Vivian Juang
- Department and Institute of Pharmacology, National Yang-Ming University
| | - Hsin-Pin Lee
- Department of Biological Sciences and Technology, National University of Tainan
| | - Anya Maan-Yuh Lin
- Department and Institute of Pharmacology, National Yang-Ming University; Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
| | - Yu-Li Lo
- Department and Institute of Pharmacology, National Yang-Ming University
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26
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Tsai JP, Lee CH, Ying TH, Lin CL, Lin CL, Hsueh JT, Hsieh YH. Licochalcone A induces autophagy through PI3K/Akt/mTOR inactivation and autophagy suppression enhances Licochalcone A-induced apoptosis of human cervical cancer cells. Oncotarget 2016; 6:28851-66. [PMID: 26311737 PMCID: PMC4745696 DOI: 10.18632/oncotarget.4767] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 07/20/2015] [Indexed: 12/26/2022] Open
Abstract
The use of dietary bioactive compounds in chemoprevention can potentially reverse, suppress, or even prevent cancer progression. However, the effects of licochalcone A (LicA) on apoptosis and autophagy in cervical cancer cells have not yet been clearly elucidated. In this study, LicA treatment was found to significantly induce the apoptotic and autophagic capacities of cervical cancer cells in vitro and in vivo. MTT assay results showed dose- and time-dependent cytotoxicity in four cervical cancer cell lines treated with LicA. We found that LicA induced mitochondria-dependent apoptosis in SiHa cells, with decreasing Bcl-2 expression. LicA also induced autophagy effects were examined by identifying accumulation of Atg5, Atg7, Atg12 and microtubule-associated protein 1 light chain 3 (LC3)-II. Treatment with autophagy-specific inhibitors (3-methyladenine and bafilomycin A1) enhanced LicA-induced apoptosis. In addition, we suggested the inhibition of phosphatidylinositol 3-kinase (PI3K)/Akt/mammalian target of mTOR pathway by LicA. Furthermore, the inhibition of PI3K/Akt by LY294002/si-Akt or of mTOR by rapamycin augmented LicA-induced apoptosis and autophagy. Finally, the in vivo mice bearing a SiHa xenograft, LicA dosed at 10 or 20 mg/kg significantly inhibited tumor growth. Our findings demonstrate the chemotherapeutic potential of LicA for treatment of human cervical cancer.
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Affiliation(s)
- Jen-Pi Tsai
- Department of Nephrology, Buddhist Dalin Tzu Chi General Hospital, Chiayi, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Chien-Hsing Lee
- Graduate Institute of Medical Sciences, Chang Jung Christian University, Tainan, Taiwan.,Division of Pediatric Surgery, Department of Surgery, Children's Hospital of China Medical University, Taichung, Taiwan
| | - Tsung-Ho Ying
- Department of Obstetrics and Gynecology, School of Medicine, College of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Chu-Liang Lin
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan
| | - Chia-Liang Lin
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan
| | - Jung-Tsung Hsueh
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan
| | - Yi-Hsien Hsieh
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan.,Department of Biochemistry, School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Clinical Laboratory, Chung Shan Medical University Hospital, Taichung, Taiwan
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27
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Tsai JH, Hsu LS, Huang HC, Lin CL, Pan MH, Hong HM, Chen WJ. 1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione Induces G1 Cell Cycle Arrest and Autophagy in HeLa Cervical Cancer Cells. Int J Mol Sci 2016; 17:ijms17081274. [PMID: 27527160 PMCID: PMC5000672 DOI: 10.3390/ijms17081274] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Revised: 07/21/2016] [Accepted: 07/29/2016] [Indexed: 12/24/2022] Open
Abstract
The natural agent, 1-(2-hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione (HMDB), has been reported to have growth inhibitory effects on several human cancer cells. However, the role of HMDB in cervical cancer remains unclear. Herein, we found that HMDB dose- and time-dependently inhibited growth of HeLa cervical cancer cells, accompanied with G1 cell cycle arrest. HMDB decreased protein expression of cyclins D1/D3/E and cyclin-dependent kinases (CDKs) 2/4/6 and reciprocally increased mRNA and protein levels of CDK inhibitors (p15, p16, p21, and p27), thereby leading to the accumulation of hypophosphorylated retinoblastoma (Rb) protein. HMDB also triggered the accumulation of acidic vesicles and formation of microtubule-associated protein-light chain 3 (LC3), followed by increased expression of LC3 and Beclin-1 and decreased expression of p62, suggesting that HMDB triggered autophagy in HeLa cells. Meanwhile, suppression of the expression of survivin and Bcl-2 implied that HMDB-induced autophagy is tightly linked to apoptosis. Exploring the action mechanism, HMDB induced autophagy via the modulation of AMP-activated protein kinase (AMPK) and mTOR signaling pathway rather than the class III phosphatidylinositol 3-kinase pathway. These results suggest that HMDB inhibits HeLa cell growth by eliciting a G1 arrest through modulation of G1 cell cycle regulators and by concomitantly inducing autophagy through the mediation of AMPK-mTOR and Akt-mTOR pathways, and may be a promising antitumor agent against cervical cancer.
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Affiliation(s)
- Jie-Heng Tsai
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung 402, Taiwan.
| | - Li-Sung Hsu
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung 402, Taiwan.
- Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 402, Taiwan.
| | - Hsiu-Chen Huang
- Department of Applied Science, National Hsinchu University of Education, Hsinchu 300, Taiwan.
| | - Chih-Li Lin
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan.
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung 402, Taiwan.
| | - Min-Hsiung Pan
- Institute of Food Science and Technology, National Taiwan University, Taipei 106, Taiwan.
| | - Hui-Mei Hong
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung 402, Taiwan.
- Department of Biomedical Sciences, Chung Shan Medical University, Taichung 402, Taiwan.
| | - Wei-Jen Chen
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung 402, Taiwan.
- Department of Biomedical Sciences, Chung Shan Medical University, Taichung 402, Taiwan.
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28
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Hu Z, Zhong Z, Huang S, Wen H, Chen X, Chu H, Li Q, Sun C. Decreased expression of Beclin‑1 is significantly associated with a poor prognosis in oral tongue squamous cell carcinoma. Mol Med Rep 2016; 14:1567-73. [PMID: 27356955 PMCID: PMC4940089 DOI: 10.3892/mmr.2016.5437] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Accepted: 04/29/2016] [Indexed: 01/07/2023] Open
Abstract
The autophagy-related gene Beclin-1 is critical in the regulation of tumourigenesis and progression, but its role in oral tongue squamous cell carcinoma (OTSCC) has not yet been reported. This study aimed to investigate Beclin-1 expression and its significance in OTSCC. Beclin-1 expression was assessed by reverse transcription-quantitative polymerase chain reaction or western blot analysis in 14 OTSCC tissues and matched adjacent noncancerous tissues as well as in 5 OTSCC cell lines and a normal tongue epithelial cell line. Beclin-1 protein expression was examined by immunohistochemistry in 133 OTSCC specimens, and the correlation between Beclin-1 expression and clinicopathological features was investigated. Furthermore, MTT and colony formation assays were performed to investigate the effect of Beclin-1 on the proliferation and clonogenicity of OTSCC cells. It was demonstrated that Beclin-1 expression was significantly decreased in the majority of the 14 OTSCC tissues and the 5 OTSCC cell lines relative to the matched non-cancerous tissues and the normal tongue epithelial cell line, respectively. Immunohistochemistry analysis revealed that decreased Beclin-1 expression was significantly correlated with poor differentiation, lymph node metastasis, advanced clinical tumour-node-metastasis stage, and a poor prognosis in patients with OTSCC. The in vitro assays indicated that the overexpression of Beclin-1 significantly inhibits the proliferation and clonogenicity of OTSCC cells. These results demonstrate that Beclin-1 acts as a tumour suppressor in the development or progression of OTSCC and that Beclin-1 may represent a novel prognostic marker for patients with OTSCC.
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Affiliation(s)
- Zedong Hu
- Department of Head and Neck Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Zhaoming Zhong
- Department of Head and Neck Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Shaohui Huang
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Shenyang, Liaoning 110002, P.R. China
| | - Haojie Wen
- Department of Head and Neck Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Xue Chen
- Department of Head and Neck Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Hongying Chu
- Department of Head and Neck Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Qiuli Li
- Department of Head and Neck Surgery, Sun Yat‑sen University Cancer Center, Guangzhou, Guangdong 510060, P.R. China
| | - Chuanzheng Sun
- Department of Head and Neck Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118, P.R. China
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Zhu H, Luo H, Zhang W, Shen Z, Hu X, Zhu X. Molecular mechanisms of cisplatin resistance in cervical cancer. DRUG DESIGN DEVELOPMENT AND THERAPY 2016; 10:1885-95. [PMID: 27354763 PMCID: PMC4907638 DOI: 10.2147/dddt.s106412] [Citation(s) in RCA: 254] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Patients with advanced or recurrent cervical cancer have poor prognosis, and their 1-year survival is only 10%–20%. Chemotherapy is considered as the standard treatment for patients with advanced or recurrent cervical cancer, and cisplatin appears to treat the disease effectively. However, resistance to cisplatin may develop, thus substantially compromising the efficacy of cisplatin to treat advanced or recurrent cervical cancer. In this article, we systematically review the recent literature and summarize the recent advances in our understanding of the molecular mechanisms underlying cisplatin resistance in cervical cancer.
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Affiliation(s)
- Haiyan Zhu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Hui Luo
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Wenwen Zhang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Zhaojun Shen
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Xiaoli Hu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Xueqiong Zhu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
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Zhang Y, Lin S, Zhang Y, Chang S. Effect of beclin 1 expression on the biological behavior and chemotherapy sensitivity of cervical cancer cells. Oncol Lett 2016; 11:4089-4094. [PMID: 27313746 DOI: 10.3892/ol.2016.4542] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 03/18/2016] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to evaluate the effect of the expression of the autophagic gene beclin 1 on the biological behavior and chemotherapy sensitivity towards Taxol® of cervical cancer HeLa cells. A beclin 1 expression vector was constructed and tranfected into HeLa cells. Reverse transcription-polymerase chain reaction and western blotting were used to detect the expression of beclin 1. Cell proliferation was detected based on the growth curve of the cells. The effect of beclin 1 expression on cell apoptosis was analyzed using Hoechst 33258 staining, which enabled to observe the morphology of apoptotic cells. Apoptosis-associated proteins were measured by western blot assay. The sensitivity of HeLa cells to Taxol® was analyzed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Beclin 1 expression at the messenger RNA and protein levels was elevated following transfection of the beclin 1 expression plasmid (P<0.05). Hoechst 33258 staining revealed that the apoptosis rate of the transfected HeLa cells was significantly higher than that of normal HeLa cells. The expression of caspase-3 was increased in the transfected cells, and beclin 1 transfection increased B-cell lymphoma 2 (Bcl-2)-associated X protein (Bax):Bcl-2 ratio, resulting in Bax activation and Bcl-2 suppression (P<0.05). Chemotherapy sensitivity analysis demonstrated that the half maximal inhibitory concentration values of Taxol® of the transfection, non-transfection and mock-vehicle groups were 30.4, 118.0 and 125.5 µg/ml, respectively. Beclin 1 inhibited proliferation and increased apoptosis of HeLa cells, and also increased the chemosensitivity of these cells to Taxol®. The present results confirmed that beclin 1 is a favorable prognostic biomarker for cervical cancer treatment, and may serve to identify particular patients for individual therapy.
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Affiliation(s)
- Yongxin Zhang
- Department of Gynecology, Yantai Shan Hospital, Yantai, Shandong 264000, P.R. China
| | - Shuang Lin
- Department of Gynecology, Yantai Shan Hospital, Yantai, Shandong 264000, P.R. China
| | - Yue Zhang
- Department of Gynecology, Yantai Shan Hospital, Yantai, Shandong 264000, P.R. China
| | - Suwen Chang
- Department of Gynecology, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong 264000, P.R. China
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Abstract
High-mobility group nucleosome-binding domain 5 (HMGN5) is a new member of the high-mobility group N (HMGN) protein family that is involved in nucleosomal binding and transcriptional activation. It was first discovered in mouse, and recent studies found that the expressions of HMGN5 in many human cancers were also highly regulated, such as prostate, bladder, breast, and lung and clear cell renal cell carcinoma. Numerous reports have demonstrated that HMGN5 plays significant roles in many biological and pathological conditions, such as in developmental defects, hypersensitivity to stress, embryonic stem cell differentiation, and tumor progression. Importantly, deficiency of HMGN5 has been shown to be linked to cancer cell growth, cell cycle regulation, migration, invasion, and clinical outcomes, and it represents a promising therapeutic target for many malignant tumors. In the present review, we provide an overview of the current knowledge concerning the role of HMGN5 in cancer development and progression.
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Zhu W, Pan X, Yang Z, Xing P, Zhang Y, Li F, Lu X. Expression and prognostic significance of TAp73 and ΔNp73 in FIGO stage I-II cervical squamous cell carcinoma. Oncol Lett 2015; 9:2090-2094. [PMID: 26137018 DOI: 10.3892/ol.2015.3052] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 03/06/2015] [Indexed: 11/05/2022] Open
Abstract
The purpose of the present study was to investigate the expression of TAp73 and ΔNp73 in cervical squamous cancer cells, and to evaluate the prognostic significance of TAp73 and ΔNp73 expression in patients with International Federation of Gynecology and Obstetrics (FIGO) stage I-II cervical squamous cell carcinoma (SCC). The immunohistochemical expression of TAp73 and ΔNp73 was evaluated in 59 FIGO stage I-II cervical SCC tumor samples. Correlations with clinicopathological characteristics were determined by χ2 test. The prognostic impact of TAp73 and ΔNp73 expression with regard to overall survival (OS) was determined by the Kaplan-Meier method. High TAp73 and ΔNp73 expression was detected in 79.7% (47/59) and 76.3% (45/59) of patients, respectively. The expression of TAp73 and ΔNp73 was not associated with age, FIGO stage, pathological differentiation or lymph node metastasis. The 3-year OS rates associated with low and high TAp73 expression were 75.0 and 83.0%, respectively (χ2=0.33; P=0.568), whereas those associated with low and high ΔNp73 expression were 100.0 and 75.6%, respectively (χ2=3.90; P=0.048). High expression levels of TAp73 and ΔNp73 were frequently observed in the cervical squamous cancer cells. Overall, high expression levels of ΔNp73 may indicate an unfavorable prognosis in patients with early-stage cervical SCC.
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Affiliation(s)
- Weipei Zhu
- Department of Gynecology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, P.R. China
| | - Xiaohong Pan
- Department of Gynecology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, P.R. China
| | - Zhujuan Yang
- Department of Gynecology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, P.R. China
| | - Pengfei Xing
- Department of Radiotherapy and Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, P.R. China
| | - Yongshen Zhang
- Department of Pathology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, P.R. China
| | - Feng Li
- Department of Pathology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, P.R. China
| | - Xueguan Lu
- Department of Radiotherapy and Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, P.R. China
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A Nontoxic Concentration of Cisplatin Induces Autophagy in Cervical Cancer. Int J Gynecol Cancer 2015; 25:380-8. [DOI: 10.1097/igc.0000000000000365] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Ying H, Qu D, Liu C, Ying T, Lv J, Jin S, Xu H. Chemoresistance is associated with Beclin-1 and PTEN expression in epithelial ovarian cancers. Oncol Lett 2015; 9:1759-1763. [PMID: 25789037 PMCID: PMC4356295 DOI: 10.3892/ol.2015.2950] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 10/31/2014] [Indexed: 01/02/2023] Open
Abstract
The aim of the present study was to investigate the protein expression of the autophagy-related genes, BECN1 and PTEN, and the association with drug resistance in epithelial ovarian cancers. In total, 40 patients with pathologically diagnosed epithelial ovarian cancer were divided into a chemotherapy-sensitive group (n=20) and a chemotherapy-resistant group (n=20), according to the results of the pre- or post-operative normative chemotherapy and the post-operative follow-up. The protein expression of the phosphatase and tensin homolog (PTEN) and the BECN1 gene product, Beclin-1, was analyzed using immunohistochemistry in the 40 patients with ovarian carcinoma. The positive rate of Beclin-1 expression was significantly lower in the resistant group (35.0%) compared with the sensitive group (50.0%). The positive rate of PTEN expression was also significantly lower in the resistant group (30.0%) compared with the sensitive group (65.0%). Furthermore, the differences in the expression rates were revealed to be significant (P<0.05). The expression of Beclin-1 was identified to be positively correlated with the expression of PTEN (rs=0.816; P<0.0001). The low expression of the Beclin-1 and PTEN proteins in the ovarian cancer tissues was revealed to be closely associated with drug resistance. Therefore, Beclin-1 may interact with PTEN to participate in the mechanism of drug resistance and the changes in macrophage activity observed in cases of drug-resistant ovarian cancer.
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Affiliation(s)
- Huanchun Ying
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Donghui Qu
- Department of Gynecology and Obstetrics, Affiliated Hospital of Chengde Medical College, Chengde, Hebei 067000, P.R. China
| | - Chuan Liu
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Tianshu Ying
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Jing Lv
- Department of Oncology, The Fifth Hospital of Shenyang, Shenyang, Liaoning 110023, P.R. China
| | - Shanshan Jin
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Hongying Xu
- Department of Gynecology and Obstetrics, The Ninth Hospital of Shenyang, Shenyang, Liaoning 10024, P.R. China
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Sun Y, Liu JH, Jin L, Sui YX, Lai L, Yang Y. Inhibition of Beclin 1 expression enhances cisplatin-induced apoptosis through a mitochondrial-dependent pathway in human ovarian cancer SKOV3/DDP cells. Oncol Res 2014; 21:261-9. [PMID: 24854102 DOI: 10.3727/096504014x13946388748992] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The purpose of this study was to determine the influence of autophagy on cisplatin-induced ovarian cancer SKOV3/DDP cell line death through regulation of the expression of the autophagy gene, Beclin 1, and to explore the potential mechanism underlying the relationship between autophagy and apoptosis. When compared with a blank control group, the proportion of apoptotic cells undergoing Beclin 1 interfering increased significantly after cisplatin treatment, accompanied by reduction in mitochondrial membrane potential, increase in activities of caspase-9/3 and cytoplasmic cytochrome C, elevation of Bax expression, and reduction in Bcl-2 expression. However, the proportion of apoptotic cells with Beclin 1 overexpression reduced. These findings suggest that Beclin 1 plays an important role in the regulation of potent antitumor activity through a mitochondrial-dependent pathway in SKOV3/DDP cell line, and inhibition of Beclin 1 expression may become a new target for the sensitization therapy of ovarian cancer with cisplatin.
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Affiliation(s)
- Yang Sun
- Department of Gynecology, Fujian Provincial Hospital, Fujian Provincial Clinical Medical College, Fujian Medical University, Fuzhou, Fujian, China
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Xu L, Liu JH, Zhang J, Zhang N, Wang ZH. Blockade of autophagy aggravates endoplasmic reticulum stress and improves Paclitaxel cytotoxicity in human cervical cancer cells. Cancer Res Treat 2014; 47:313-21. [PMID: 25578058 PMCID: PMC4398113 DOI: 10.4143/crt.2013.222] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Accepted: 02/21/2014] [Indexed: 12/11/2022] Open
Abstract
Purpose Autophagy is one of the ways to degrade unfolded proteins after endoplasmic reticulum (ER) stress. The purpose of this study is to determine whether a blockade of autophagy leads to aggravated endoplasmic reticulum stress, which then induces cells apoptosis in HeLa cells treated with paclitaxel. Materials and Methods Autophagy activation and the proapoptotic effects were characterized using monodansylcadaverine labeling and Hoechest staining, respectively. A Western blot analysis was used to detect the expression of apoptotic and autophagy-related genes. A flow cytometry was used to assess the cell apoptosis ratio. Results Paclitaxel exposure induced the aggregation of autophagosomes in the cytoplasms of cervical cancer HeLa cells. The expression of Beclin 1 and LC3 II were upregulated, but p62 was downregulated, which suggests that autophagy was promoted by paclitaxel. On the other hand, the expression of GRP78 obviously increased, suggesting that ER stress was induced after paclitaxel treatment. The cell proliferation assay indicated that a knockdown of Beclin 1 sensitized HeLa cells to paclitaxel. Furthermore, paclitaxel-mediated apoptotic cell death was further potentiated by the pretreatment with autophagy inhibitor chloroquine or small interfering RNA against Beclin 1. These results suggest that an induction of autophagy by paclitaxel may induce cell survival rather than cell death in HeLa cells; moreover, inhibition of autophagy led to an aggravated ER stress and an induction of downstream apoptosis. Conclusion Our results reveal autophagy induced by paclitaxel conferred protection of tumor cells against apoptosis, and blockade of autophagy subsequently aggravated ER stress, enhancing the apoptosis associated with paclitaxel treatment in HeLa cells.
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Affiliation(s)
- Li Xu
- Department of Respiratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jing-Hua Liu
- Department of Respiratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jing Zhang
- Department of Obstetrics and Gynecology, The Shanxi Da Yi Hospital, Taiyuan, China
| | - Na Zhang
- Department of Obstetrics and Gynecology, The Shanxi Da Yi Hospital, Taiyuan, China
| | - Zan-Hong Wang
- Department of Obstetrics and Gynecology, The Shanxi Da Yi Hospital, Taiyuan, China
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Expression and clinical significance of the autophagy proteins BECLIN 1 and LC3 in ovarian cancer. BIOMED RESEARCH INTERNATIONAL 2014; 2014:462658. [PMID: 25136588 PMCID: PMC4127242 DOI: 10.1155/2014/462658] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 06/27/2014] [Indexed: 12/13/2022]
Abstract
Autophagy is dysregulated in cancer and might be involved in ovarian carcinogenesis. BECLIN-1, a protein that interacts with either BCL-2 or PI3k class III, plays a critical role in the regulation of both autophagy and cell death. Induction of autophagy is associated with the presence of vacuoles characteristically labelled with the protein LC3. We have studied the biological and clinical significance of BECLIN 1 and LC3 in ovary tumours of different histological types. The positive expression of BECLIN 1 was well correlated with the presence of LC3-positive autophagic vacuoles and was inversely correlated with the expression of BCL-2. The latter inhibits the autophagy function of BECLIN 1. We found that type I tumours, which are less aggressive than type II, were more frequently expressing high level of BECLIN 1. Of note, tumours of histologic grade III expressed low level of BECLIN 1. Consistently, high level of expression of BECLIN 1 and LC3 in tumours is well correlated with the overall survival of the patients. The present data are compatible with the hypotheses that a low level of autophagy favours cancer progression and that ovary cancer with upregulated autophagy has a less aggressive behaviour and is more responsive to chemotherapy.
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38
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Cai M, Hu Z, Liu J, Gao J, Liu C, Liu D, Tan M, Zhang D, Lin B. Beclin 1 expression in ovarian tissues and its effects on ovarian cancer prognosis. Int J Mol Sci 2014; 15:5292-303. [PMID: 24675697 PMCID: PMC4013564 DOI: 10.3390/ijms15045292] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 03/01/2014] [Accepted: 03/17/2014] [Indexed: 02/06/2023] Open
Abstract
Beclin 1 is an autophagy-associated protein involved in apoptosis and drug resistance, as well as various malignancies. We investigated the expression of Beclin 1 protein in ovarian epithelial tissues and correlated it with the prognosis of ovarian cancer. Beclin 1 protein expression was determined using immunohistochemistry in 148 patients with ovarian epithelial cancer, 26 with ovarian borderline tumor, 25 with benign ovarian tumor, and 30 with normal ovarian tissue. The relationships between Beclin 1 protein expression and ovarian cancer pathological characteristics were analyzed. The risk factors for ovarian cancer prognosis were analyzed using Cox’s regression model. A survival curve was plotted from the follow-up data of 93 patients with ovarian cancer to analyze the effects of Beclin 1 expression on the prognosis of ovarian cancer. The positive rates of Beclin 1 were significantly higher in ovarian epithelial cancer (148) and borderline tumor (26) than in benign ovarian tumor (25) or normal ovarian tissue (30) (all p < 0.001). The surgical stage and Beclin 1 expression were both independent risk factors for ovarian cancer prognosis (both p < 0.05). Patients with high Beclin 1 levels showed better survival than those with low Beclin 1 levels (p = 0.009). Beclin 1 protein is upregulated in ovarian epithelial cancer and is a prognostic factor of ovarian cancer.
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Affiliation(s)
- Mingbo Cai
- Department of Obstetrics and Gynecology, Shengjing Hospital Affiliated to China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110004, Liaoning, China.
| | - Zhenhua Hu
- Department of Obstetrics and Gynecology, Shengjing Hospital Affiliated to China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110004, Liaoning, China.
| | - Juanjuan Liu
- Department of Obstetrics and Gynecology, Shengjing Hospital Affiliated to China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110004, Liaoning, China.
| | - Jian Gao
- Department of Obstetrics and Gynecology, Shengjing Hospital Affiliated to China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110004, Liaoning, China.
| | - Chuan Liu
- Department of Obstetrics and Gynecology, Shengjing Hospital Affiliated to China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110004, Liaoning, China.
| | - Dawo Liu
- Department of Obstetrics and Gynecology, Shengjing Hospital Affiliated to China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110004, Liaoning, China.
| | - Mingzi Tan
- Department of Obstetrics and Gynecology, Shengjing Hospital Affiliated to China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110004, Liaoning, China.
| | - Danye Zhang
- Department of Obstetrics and Gynecology, Shengjing Hospital Affiliated to China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110004, Liaoning, China.
| | - Bei Lin
- Department of Obstetrics and Gynecology, Shengjing Hospital Affiliated to China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110004, Liaoning, China.
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Liu Q, Luo XY, Jiang H, Yang MH, Yuan GH, Tang Z, Wang H. Hydroxychloroquine facilitates autophagosome formation but not degradation to suppress the proliferation of cervical cancer SiHa cells. Oncol Lett 2014; 7:1057-1062. [PMID: 24944668 PMCID: PMC3961458 DOI: 10.3892/ol.2014.1879] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Accepted: 01/07/2014] [Indexed: 02/06/2023] Open
Abstract
Hydroxychloroquine (HCQ), the hydroxylated analog of chloroquine, is an antimalarial lysomotropic agent that inhibits autophagy due to lysosomal acidification, and subsequently blocks the fusion of autophagosomes with lysosomes which leads to the accumulation of autophagosomes that may accelerate tumor cell death. Given these hypothesis the aim of this study was to investigate the effects of HCQ in the inhibition of autophagy and the induction of apoptosis in cervical cancer SiHa cells. Cervical cancer SiHa cells were cultured with Hank’s balanced salt solution (HBSS) as positive control of autophagy or treated with HCQ as part of the experimental groups. LC3 and P62/SQSTM1 were detected by quantitative polymerase chain reaction (qPCR) and western blotting, respectively in order to evaluate initially autophagosome formation and their degradation. Specific green fluorescent protein (GFP)-LC3 was subsequently detected by fluorescence microscopy in order to confirm the formation of autophagosomes. MTT and flow cytometry were adopted respectively to assess the proliferation and apoptosis of the SiHa cells. miRNA-9* was also investigated. The results demonstrated that HCQ increased the expressions of LC3 mRNA and LC3II protein and GFP-LC3 signalling but reduced the expression of p62/STSQM1 in cervical cancer SiHa cells. These results indicated HCQ has the ability to inhibit autophagy as incapable of degrading the autophagosome. However, HCQ may promote SiHa cell apoptosis as the MTT, apoptotic assay and miRNA-9* results revealed. HCQ has the ability to inhibit autophagy by blocking the degradation of autophagosomes and subsequently facilitates the apoptosis of cervical cancer SiHa cells.
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Affiliation(s)
- Qingsong Liu
- Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Institute of Women and Children's Health, West China Second Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China ; Department of Clinical Laboratory, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Xiong Yan Luo
- Institute of Rheumatology and Immunology, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Hong Jiang
- Institute of Rheumatology and Immunology, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Ming-Hui Yang
- Institute of Rheumatology and Immunology, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Guo-Hua Yuan
- Institute of Rheumatology and Immunology, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Zhong Tang
- Department of Clinical Laboratory, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - He Wang
- Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Institute of Women and Children's Health, West China Second Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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40
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Pan TL, Wang PW, Hung YC, Huang CH, Rau KM. Proteomic analysis reveals tanshinone IIA enhances apoptosis of advanced cervix carcinoma CaSki cells through mitochondria intrinsic and endoplasmic reticulum stress pathways. Proteomics 2013; 13:3411-23. [PMID: 24167031 DOI: 10.1002/pmic.201300274] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Revised: 09/26/2013] [Accepted: 09/30/2013] [Indexed: 12/17/2022]
Abstract
Cervix cancer is the second most common cancer among women worldwide, whereas paclitaxel, the first line chemotherapeutic drug used to treat cervical cancer, shows low chemosensitivity on the advanced cervical cancer cell line. Tanshinone IIA (Tan IIA) exhibited strong growth inhibitory effect on CaSki cells (IC50 = 5.51 μM) through promoting caspase cascades with concomitant upregulating the phosphorylation of p38 and JNK signaling. Comprehensive proteomics revealed the global protein changes and the network analysis implied that Tan IIA treatment would activate ER stress pathways that finally lead to apoptotic cell death. Moreover, ER stress inhibitor could alleviate Tan IIA caused cell growth inhibition and ameliorate C/EBP-homologous protein as well as apoptosis signal-regulating kinase 1 mediated cell death. The therapeutic interventions targeting the mitochondrial-related apoptosis and ER stress responses might be promising strategies to conquer paclitaxel resistance.
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Affiliation(s)
- Tai-Long Pan
- School of Traditional Chinese Medicine, Chang Gung University, Taoyuan, Taiwan; Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan
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Orfanelli T, Jeong J, Doulaveris G, Holcomb K, Witkin S. Involvement of autophagy in cervical, endometrial and ovarian cancer. Int J Cancer 2013; 135:519-28. [DOI: 10.1002/ijc.28524] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Accepted: 09/18/2013] [Indexed: 01/06/2023]
Affiliation(s)
- T. Orfanelli
- Division of Immunology and Infectious Diseases; Department of Obstetrics and Gynecology; Weill Cornell Medical College; New York NY
| | - J.M. Jeong
- Division of Immunology and Infectious Diseases; Department of Obstetrics and Gynecology; Weill Cornell Medical College; New York NY
| | - G. Doulaveris
- Division of Immunology and Infectious Diseases; Department of Obstetrics and Gynecology; Weill Cornell Medical College; New York NY
| | - K. Holcomb
- Division of Gynecologic Oncology; Department of Obstetrics and Gynecology; Weill Cornell Medical College; New York NY
| | - S.S. Witkin
- Division of Immunology and Infectious Diseases; Department of Obstetrics and Gynecology; Weill Cornell Medical College; New York NY
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Yang CC, Wu CT, Chen LP, Hung KY, Liu SH, Chiang CK. Autophagy induction promotes aristolochic acid-I-induced renal injury in vivo and in vitro. Toxicology 2013; 312:63-73. [DOI: 10.1016/j.tox.2013.07.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 07/30/2013] [Accepted: 07/30/2013] [Indexed: 11/15/2022]
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Role of the Crosstalk between Autophagy and Apoptosis in Cancer. JOURNAL OF ONCOLOGY 2013; 2013:102735. [PMID: 23840208 PMCID: PMC3687500 DOI: 10.1155/2013/102735] [Citation(s) in RCA: 200] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2013] [Accepted: 03/24/2013] [Indexed: 12/14/2022]
Abstract
Autophagy and apoptosis are catabolic pathways essential for organismal homeostasis. Autophagy is normally a cell-survival pathway involving the degradation and recycling of obsolete, damaged, or harmful macromolecular assemblies; however, excess autophagy has been implicated in type II cell death. Apoptosis is the canonical programmed cell death pathway. Autophagy and apoptosis have now been shown to be interconnected by several molecular nodes of crosstalk, enabling the coordinate regulation of degradation by these pathways. Normally, autophagy and apoptosis are both tumor suppressor pathways. Autophagy fulfils this role as it facilitates the degradation of oncogenic molecules, preventing development of cancers, while apoptosis prevents the survival of cancer cells. Consequently, defective or inadequate levels of either autophagy or apoptosis can lead to cancer. However, autophagy appears to have a dual role in cancer, as it has now been shown that autophagy also facilitates the survival of tumor cells in stress conditions such as hypoxic or low-nutrition environments. Here we review the multiple molecular mechanisms of coordination of autophagy and apoptosis and the role of the proteins involved in this crosstalk in cancer. A comprehensive understanding of the interconnectivity of autophagy and apoptosis is essential for the development of effective cancer therapeutics.
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Regulation of paclitaxel-induced programmed cell death by autophagic induction: A model for cervical cancer. Obstet Gynecol Sci 2013; 56:84-92. [PMID: 24327986 PMCID: PMC3784092 DOI: 10.5468/ogs.2013.56.2.84] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 10/09/2012] [Accepted: 10/09/2012] [Indexed: 01/22/2023] Open
Abstract
Objective Autophagy plays a vital role in homeostasis by combining organelles and cellular proteins with lysosome under starvation conditions. In addition, autophagy provides tumor cells with a source of energy. Continued autophagy will induce cells death. Here we aim to see if autophagic induction has an effect on conventional chemotherapeutic agents. Methods Rapamycin, or mammalian target of rapamycin and paclitaxel, apoptosis-inducing agents were used autophagy in HeLa cervical cancer cells. Results Growth inhibition of cells was not observed after the application of 0, 10, 20 nM of paclitaxel with or without rapamycin. Using a 5 nM concentration of paclitaxel, rapamycin administration inhibited cell growth significantly compared to no treatment. This implies the synergic antitumor effect of paclitaxel and rapamycin. Paclitaxel itself did not show any autophagic effect on cells but did show cell apoptosis by flow cytometry. Light chain 3, a microtubule-associated protein, which reflect autophagy, was increased with 5 nM of paclitaxel after pretreatment with 10 nM of rapamycin. Conclusion These findings suggest that the autophagic inducer, rapamycin, can potentiate autophagic cell death when added as an apoptosis-inducing chemotherapeutic agent. In conclusion, the control of autophagy may be a future target for chemotherapy.
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Zhang HY, Du ZX, Meng X, Zong ZH, Wang HQ. Beclin 1 enhances proteasome inhibition-mediated cytotoxicity of thyroid cancer cells in macroautophagy-independent manner. J Clin Endocrinol Metab 2013; 98:E217-26. [PMID: 23264393 DOI: 10.1210/jc.2012-2679] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
CONTEXT The ubiquitin-proteasome system and macroautophagy are two major pathways for intracellular protein degradation. Emerging lines of evidence have shown that blockade of ubiquitin-proteasome system by proteasome inhibitors activates macroautophagy. OBJECTIVE The purpose of this study was to determine the involvement of autophagy essential gene Beclin 1 in cytotoxicity of thyroid cancer cells mediated by proteasome inhibitors. DESIGN Autophagy was measured by acidic-trophic dye staining and EGF-LC3 distribution using fluorescence microscopy, as well as LC3-II transition using Western blot. To ascertain the effect of Beclin 1, cells were transfected with Beclin 1 plasmid or shRNA against Beclin 1. Cell viability and apoptotic cells were measured using MTT assay and flow cytometry, respectively. RESULTS Proteasome inhibitors decreased Beclin 1 expression. In addition, treatment with PI3K inhibitors 3-MA or wortmannin, as well as knockdown of Beclin 1 expression, was unable to affect autophagic responses mediated by proteasome inhibitors. Overexpression of Beclin 1 enhanced proteasome inhibitor-mediated cytotoxicity of thyroid cancer cells via suppression of survivin. CONCLUSIONS Proteasome inhibitors cause Beclin 1-independent macroautophagic responses of thyroid cancer cells in a Beclin 1-independent manner. Beclin 1 possesses autophagy-independent antitumoral effects upon exposure of thyroid cancer cells to proteasome inhibitors.
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Affiliation(s)
- Hai-Yan Zhang
- Department of Geriatrics, the First Affiliated Hospital, China Medical University, Shenyang 110001, China.
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Liu C, Yan X, Wang HQ, Gao YY, Liu J, Hu Z, Liu D, Gao J, Lin B. Autophagy-independent enhancing effects of Beclin 1 on cytotoxicity of ovarian cancer cells mediated by proteasome inhibitors. BMC Cancer 2012; 12:622. [PMID: 23270461 PMCID: PMC3553022 DOI: 10.1186/1471-2407-12-622] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Accepted: 12/17/2012] [Indexed: 01/11/2023] Open
Abstract
Background The ubiquitin-proteasome system and macroautophagy (hereafter referred to autophagy) are two complementary pathways for protein degradation. Emerging evidence suggests that proteasome inhibition might be a promising approach for tumor therapy. Accumulating data suggest that autophagy is activated as a compensatory mechanism upon proteasome activity is impaired. Method Autophagy activation was measured using acridine orange staining and LC3 transition. Cell viability and apoptosis were measured using MTT assay and flow cytometry, respectively. Beclin 1 expression vectors or shRNA against Beclin 1 (shBeclin 1) were transfected to investigate the role of Beclin 1 in autophagy activation and cytotoxicity of ovarian cancer cells induced by proteasome inhibitors. Results Proteasome inhibitors suppressed proliferation and induced autophagy in ovarian cancer cells. Neither phosphoinositide 3-kinase (PI3K) inhibitors nor shRNA against Beclin 1 could abolish the formation of acidic vacuoles and the processing of LC3 induced by proteasome inhibitors. Moreover, Beclin 1 overexpression enhanced anti-proliferative effects of proteasome inhibitors in ovarian cancer cells. Conclusions For the first time, the current study demonstrated that proteasome inhibitors induced PI3K and Beclin 1-independent autophagy in ovarian cancer cells. In addition, this study revealed autophagy-independent tumor suppressive effects of Beclin 1 in ovarian cancer cells.
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Affiliation(s)
- Chuan Liu
- Department of Obstetrics & Gynecology, Shengjing Hospital Affiliated to China Medical University, Shenyang 110004, China
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Beclin 1 Influences Cisplatin-Induced Apoptosis in Cervical Cancer CaSki Cells by Mitochondrial Dependent Pathway. Int J Gynecol Cancer 2012; 22:1118-24. [DOI: 10.1097/igc.0b013e31825e0caa] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
PurposeTo investigate the role of Beclin 1 expression on the cisplatin-induced apoptosis in cervical cancer CaSki cells and to explore the potential mechanism underlying this effect.Materials and MethodsAfter overexpression or partial silencing of Beclin 1 in cervical cancer CaSki cells, the transfected group and the control group were treated with cisplatin for 24 hours. The percentage of apoptotic cells were assessed by flow cytometry. The mitochondrial membrane potential and activities of caspase-8/9/3 were detected by JC-1 fluorescence staining and colorimetry. The expression of cytochrome c was measured using a Western blot. The messenger RNA expression of Bax and Bcl-2 were detected by real-time quantitative reverse transcription polymerase chain reaction.ResultsExpression of Beclin 1 protein was up-regulated in overexpressed transfectants of CaSki cells. After treatment with cisplatin, the Beclin 1 overexpression group led to the decrease of mitochondrial membrane potential and increase of activities of caspase-9 and caspase-3, and showed a greater increase in apoptosis than did the nontransfected group. Furthermore, Beclin 1 overexpression resulted in increased cytoplasmic cytochrome c and Bax expression and decreased mitochondrial cytochrome c and Bcl-2 expression.ConclusionOverexpression of Beclin 1 in CaSki cells may influence cisplatin-induced apoptosis by mitochondrial dependent pathway.
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Shin JY, Lim HT, Minai-Tehrani A, Noh MS, Kim JE, Kim JH, Jiang HL, Arote R, Kim DY, Chae C, Lee KH, Kim MS, Cho MH. Aerosol delivery of beclin1 enhanced the anti-tumor effect of radiation in the lungs of K-rasLA1 mice. JOURNAL OF RADIATION RESEARCH 2012; 53:506-515. [PMID: 22843615 PMCID: PMC3393344 DOI: 10.1093/jrr/rrs005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2011] [Accepted: 02/13/2012] [Indexed: 06/01/2023]
Abstract
Radiotherapy alone has several limitations for treating lung cancer. Inhalation, a non-invasive approach for direct delivery of therapeutic agents to the lung, may help to enhance the therapeutic efficacy of radiation. Up-regulating beclin1, known as a tumor suppressor gene that plays a major role in autophagy, may sensitize tumors and lead to tumor regression in lungs of K-ras(LA1) lung cancer model mice. To minimize the side-effects of radiotherapy, fractionated exposures (five times, 24-h interval) with low dose (2 Gy) of radiation to the restricted area (thorax, 2 cm) were conducted. After sensitizing the lungs with radiation, beclin1, complexed with a nano-sized biodegradable poly(ester amine), was prepared and delivered into the murine lung via aerosol three times/week for four weeks. In a histopathological analysis, animals treated with beclin1 and radiation showed highly significant tumor regression and low progression to adenocarcinoma. An increase in the number of autophagic vacuoles and secondary lysosomes was detected. Dissociation of beclin1-bcl2 stimulated autophagy activation and showed a synergistic anti-tumor effect by inhibiting the Akt-mTOR pathway, cell proliferation and angiogenesis. The combination of radiation with non-invasive aerosol delivery of beclin1 may provide a prospect for developing novel therapy regimens applicable in clinics.
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Affiliation(s)
- Ji-Young Shin
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea
| | - Hwang-Tae Lim
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea
- Department of Nanofusion Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, Korea
| | - Arash Minai-Tehrani
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea
| | - Mi-Suk Noh
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea
- Department of Nanofusion Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, Korea
| | - Ji-Eun Kim
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea
- Department of Nanofusion Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, Korea
| | - Ji-Hye Kim
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea
- Department of Nanofusion Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, Korea
| | - Hu-Lin Jiang
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea
| | - Rohidas Arote
- Department of Agricultural Biotechnology, Seoul National University, Seoul, Korea
| | - Doo-Yeol Kim
- Laboratory of Pathology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea
| | - Chanhee Chae
- Laboratory of Pathology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea
| | - Kee-Ho Lee
- Korea Institute of Radiological and Medical Sciences, Seoul 139-240, Korea
| | - Mi-Sook Kim
- Korea Institute of Radiological and Medical Sciences, Seoul 139-240, Korea
| | - Myung-Haing Cho
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea
- Department of Nanofusion Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, Korea
- Graduate School of Tumor Biology, Seoul National University, Seoul 151-742, Korea
- Center for Food Safety and Toxicology, Seoul National University, Seoul 151-742, Korea
- Advanced Institute of Convergence Technology, Seoul National University, Suwon 443-270, Korea
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Zhu W, Pan X, Li F, Zhang Y, Lu X. Expression of Beclin 1 and LC3 in FIGO stage I-II cervical squamous cell carcinoma and relationship to survival. Tumour Biol 2012; 33:1653-9. [PMID: 22648564 DOI: 10.1007/s13277-012-0421-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Accepted: 05/09/2012] [Indexed: 01/23/2023] Open
Abstract
The purpose of this study was to investigate the expression of autophagy-related proteins Beclin 1 and LC3 in cervical normal epithelial cells and squamous cancer cells, and to evaluate the prognostic significance of Beclin 1 and LC3 expression in FIGO stage I-II cervical squamous cell carcinoma. The immunohistochemical expression of Beclin 1 and LC3 were evaluated in 26 formalin-fixed paraffin-embedded cervical normal tissue samples and 50 tumor samples of FIGO stage I-II cervical squamous cell carcinoma, respectively. Correlations with clinicopathologic characteristics were determined by Chi-square test. The prognostic impact of Beclin 1 and LC3 expression in regard to overall survival was determined by Kaplan-Meier method. Cervical normal squamous epithelial cells and cancer cells expressed high Beclin 1 immunoreactivity in 96.2 % (25/26) and 28.0 % (14/50) of patients (p = 0.000), and expressed high LC3 immunoreactivity in 76.9 % (20/26) and 26.0 % (13/50) of patients, respectively (p = 0.000). The expression of both Beclin 1 and LC3 were not associated with age, FIGO stage, pathologic differentiation, and lymph node metastasis. The 3-year overall survival (OS) rates with low and high expressions of Beclin 1 were 72.2 and 100.0 %, respectively (p = 0.034). The 3-year OS rates with low and high expressions of LC3 were 75.7 and 92.3 %, respectively (p = 0.224). These results show that expression level of both Beclin-1 and LC3 were significantly lower in cervical squamous cancer cells than normal squamous epithelial cells. The expression of Beclin 1 and LC3 may have prognostic significance in early stage cervical squamous cell carcinoma.
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Affiliation(s)
- Weipei Zhu
- Department of Gynecology, The Second Affiliated Hospital of Soochow University, Suzhou, People's Republic of China
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Wang H, Pei W, Luan Q, Ma F, Zhou S, Zhao Z, Meng X, Zhang X, Liang X, Chen Y, Zhan Q, Lin C, Qian H, Zhao P. A feasibility study on gene therapy of pancreatic carcinoma with Ad-PUMA. Cancer Biol Ther 2012; 13:712-9. [PMID: 22617775 DOI: 10.4161/cbt.20552] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Pancreatic cancer is one of the most malignant tumors with high mortality and poor prognosis even with the aggressive conventional therapies. Biotherapy based on the understanding of tumorigenesis mechanism is ongoing to improve the outcomes of cancer patients. We sought here to evaluate the therapeutic potential of a proapoptotic gene, PUMA, in pancreatic cancer. We found that PUMA was differently expressed in a series of pancreatic ductal adenocarcinoma cancer cell lines, and adenovirus-mediated expression of PUMA (Ad-PUMA) in these cells resulted in massive apoptosis. PUMA was more potent than p53 in suppressing growth of cancer cells. RT-PCR and Western Blot revealed that exogenous PUMA was expressed 6 h after Ad-PUMA infection. Furthermore, we assessed the efficacy of Ad-PUMA combining anticancer drugs (5-fluorouracil, cisplatin, gemcitabine hydrochloride, respectively) in these pancreatic cancer cell lines. Data revealed that PUMA significantly sensitized pancreatic carcinoma cell lines to chemotherapeutics, which may be resulted from abundant apoptosis induction. In nude mice with PANC-1 xenografts, Ad-PUMA treatment significantly inhibited the tumor growth. These results suggest that PUMA is a potent molecular tool in suppressing tumor growth sensitizing pancreatic carcinoma cells to chemical drugs. PUMA plays roles in negatively regulating cancer cell growth and may be a promising tool for cancer biotherapy, with or without combination with chemotherapeutic agents.
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Affiliation(s)
- Haijuan Wang
- State Key Laboratory of Molecular Oncology, Cancer Institute/Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
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