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Zhu G, Wang L, Wang X, Dong X, Yang S, Wang J, Xu S, Zeng Y. Comparative Proteomics Identified EXOSC1 as a Target Protein of Anticancer Peptide LVTX-8 in Nasopharyngeal Carcinoma Cells. J Proteome Res 2024. [PMID: 38700954 DOI: 10.1021/acs.jproteome.4c00031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
Nasopharyngeal carcinoma (NPC) is a prevalent malignancy that usually occurs among the nose and throat. Due to mild initial symptoms, most patients are diagnosed in the late stage, and the recurrence rate of tumors is high, resulting in many deaths every year. Traditional radiotherapy and chemotherapy are prone to causing drug resistance and significant side effects. Therefore, searching for new bioactive drugs including anticancer peptides is necessary and urgent. LVTX-8 is a peptide toxin synthesized from the cDNA library of the spider Lycosa vittata, which is consisting of 25 amino acids. In this study, a series of in vitro cell experiments such as cell toxicity, colony formation, and cell migration assays were performed to exam the anticancer activity of LVTX-8 in NPC cells (5-8F and CNE-2). The results suggested that LVTX-8 significantly inhibited cell proliferation and migration of NPC cells. To find the potential molecular targets for the anticancer capability of LVTX-8, high-throughput proteomic and bioinformatics analysis were conducted on NPC cells. The results identified EXOSC1 as a potential target protein with significantly differential expression levels under LVTX-8+/LVTX-8- conditions. The results in this research indicate that spider peptide toxin LVTX-8 exhibits significant anticancer activity in NPC, and EXOSC1 may serve as a target protein for its anticancer activity. These findings provide a reference for the development of new therapeutic drugs for NPC and offer new ideas for the discovery of biomarkers related to NPC diagnosis. The mass spectrometry proteomics data have been deposited to the ProteomeXchange Consortium (https://proteomecentral.proteomexchange.org) via the iProX partner repository with the data set identifier PXD050542.
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Affiliation(s)
- Ganghua Zhu
- Department of Otolaryngology-Head and Neck Surgery, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Lingxiang Wang
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
| | - Xingyao Wang
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
| | - Xiaoping Dong
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
| | - Shu Yang
- Department of Otolaryngology-Head and Neck Surgery, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Jiaqi Wang
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
| | - Siyuan Xu
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
| | - Yong Zeng
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
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Lin J, Lin X, Zheng R, Lin K, Khan M, Huang X, Tian Y, Wang B, Xu B, Yuan Y, Huang Z. Impact of chrono-radiotherapy on the prognosis and treatment-related toxicity in patients with locally advanced nasopharyngeal carcinoma: A multicenter propensity-matched study. Chronobiol Int 2024; 41:587-597. [PMID: 38606920 DOI: 10.1080/07420528.2024.2337887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 03/27/2024] [Indexed: 04/13/2024]
Abstract
The timing of radiotherapy (RT) delivery has been reported to affect both cancer survival and treatment toxicity. However, the association among the timing of RT delivery, survival, and toxicity in locally advanced nasopharyngeal carcinoma (LA-NPC) has not been investigated. We retrospectively reviewed patients diagnosed with LA-NPC who received definitive RT at multiple institutions. The median RT delivery daytime was categorized as morning (DAY) and night (NIGHT). Seasonal variations were classified into the darker half of the year (WINTER) and brighter half (SUMMER) according to the sunshine duration. Cohorts were balanced according to baseline characteristics using propensity score matching (PSM). Survival and toxicity outcomes were evaluated using Cox regression models. A total of 355 patients were included, with 194/161 in DAY/NIGHT and 187/168 in WINTER/SUMMER groups. RT delivered during the daytime prolonged the 5-year overall survival (OS) (90.6% vs. 80.0%, p = 0.009). However, the significance of the trend was lost after PSM (p = 0.068). After PSM analysis, the DAY cohort derived a greater benefit in 5-year progression-free survival (PFS) (85.6% vs. 73.4%, p = 0.021) and distant metastasis-free survival (DMFS) (89.2% vs. 80.8%, p = 0.051) in comparison with the NIGHT subgroup. Moreover, multivariate analysis showed that daytime RT was an independent prognostic factor for OS, PFS, and DMFS. Furthermore, daytime RT delivery was associated with an increase in the incidence of leukopenia and radiation dermatitis. RT delivery in SUMMER influenced only the OS significantly (before PSM: p = 0.051; after PSM: p = 0.034). There was no association between toxicity and the timing of RT delivery by season. In LA-NPC, the daytime of radical RT served as an independent prognostic factor. Furthermore, RT administered in the morning resulted in more severe toxic side effects than that at night, which needs to be confirmed in a future study.
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Affiliation(s)
- Jie Lin
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Xiantao Lin
- Department of Radiation Oncology, The First Affiliated Hospital of Hainan Medical University, Hainan, China
| | - Rong Zheng
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, People's Republic of China
- Fujian Key Laboratory of Intelligent Imaging and Precision Radiotherapy for Tumors, Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China
- Department of Digestive, Hematological, and Breast Malignancies, Clinical Research Center for Radiology and Radiotherapy of Fujian Province, Fuzhou, Fujian, People's Republic of China
| | - Kehai Lin
- Department of Oncology, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Muhammad Khan
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Xiuting Huang
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Yunhong Tian
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Baiyao Wang
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - BenHua Xu
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, People's Republic of China
- Fujian Key Laboratory of Intelligent Imaging and Precision Radiotherapy for Tumors, Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China
- Department of Digestive, Hematological, and Breast Malignancies, Clinical Research Center for Radiology and Radiotherapy of Fujian Province, Fuzhou, Fujian, People's Republic of China
| | - Yawei Yuan
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Zhong Huang
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
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Niwa AM, Semprebon SC, D'Epiro GFR, Marques LA, Zanetti TA, Mantovani MS. Salinomycin induces cell cycle arrest and apoptosis and modulates hepatic cytochrome P450 mRNA expression in HepG2/C3a cells. Toxicol Mech Methods 2021; 32:341-351. [PMID: 34806536 DOI: 10.1080/15376516.2021.2008570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Salinomycin (SAL) is a monocarboxylic polyether ionophore antibiotic isolated from Streptomyces albus. It exhibits an effective antitumor potential against numerous human cancer cells. This study aimed to assess the antiproliferative effects of SAL in human hepatocellular carcinoma HepG2/C3a cell line. We investigated the effects of SAL on cell growth, DNA damage induction, cell cycle changes and apoptosis; and relative changes in expression of cell cycle-related, apoptosis-related, and CYP450 genes. SAL induced cell cycle arrest in the G2/M phase, upregulation of CDKN1A and GADD45A and downregulation of cyclin genes including CCNB1 and CCNA2. SAL effectively suppressed mRNA levels of CTNNB1 gene, an important oncogene that promotes tumorigenesis. The decrease of HepG2/C3A cells' survival can also be due to downregulation of antiapoptotic BCL-2 expression, thus promoting the induction of apoptosis by SAL. This study also demonstrated the ability of SAL in modulating hepatic cytochrome P450 (CYP) mRNA expression, such that SAL caused the upregulation of CYP1A members and CYP3A5; and downregulation of CYP3A4. Taken together, these data contribute to the understanding of the mechanism of action of SAL, highlighting that metabolizing enzymes modulated by SAL can interfere with chemotherapy treatment and it must be considered in associated treatments.
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Affiliation(s)
- Andressa Megumi Niwa
- Department of General Biology, Center of Biological Sciences, Londrina State University - UEL, Londrina, Brazil
| | - Simone Cristine Semprebon
- Department of General Biology, Center of Biological Sciences, Londrina State University - UEL, Londrina, Brazil
| | | | - Lilian Areal Marques
- Department of General Biology, Center of Biological Sciences, Londrina State University - UEL, Londrina, Brazil
| | - Thalita Alves Zanetti
- Department of General Biology, Center of Biological Sciences, Londrina State University - UEL, Londrina, Brazil
| | - Mário Sérgio Mantovani
- Department of General Biology, Center of Biological Sciences, Londrina State University - UEL, Londrina, Brazil
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Radiosensitivity-Related Genes and Clinical Characteristics of Nasopharyngeal Carcinoma. BIOMED RESEARCH INTERNATIONAL 2020; 2020:1705867. [PMID: 33299859 PMCID: PMC7704138 DOI: 10.1155/2020/1705867] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 10/05/2020] [Accepted: 10/16/2020] [Indexed: 12/30/2022]
Abstract
Materials and Methods Clinicopathological data of 185 patients with NPC treated at Nanfang Hospital of Southern Medical University between January 2013 and December 2014 were retrospectively analyzed. SPSS statistical software was used to analyze the clinicopathological data related to radiotherapy efficacy. Three patients who achieved complete remission and three with disease progression after CRT were selected. Differentially expressed genes (DEGs) were screened via mRNA microarray analysis of primary diagnostic endoscopy specimens. Results The peripheral blood leukocyte count, platelet count, and EBV-DNA copy number in NPC patients who were resistant to radiotherapy were higher than those in NPC patients who were sensitive to radiotherapy. The RobustRankAggreg (RRA) analysis method identified 392 DEGs, and the 66 most closely related genes among the DEGs were identified from the PPI network. Conclusion The results of this study indicate that screening for DEGs and pathways in NPC using integrated in silico analyses can help identify a series of genetic and clinical signatures for NPC patients treated with neoadjuvant chemotherapy followed by concurrent chemoradiotherapy.
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Antoszczak M. A medicinal chemistry perspective on salinomycin as a potent anticancer and anti-CSCs agent. Eur J Med Chem 2019; 164:366-377. [DOI: 10.1016/j.ejmech.2018.12.057] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 12/20/2018] [Accepted: 12/24/2018] [Indexed: 01/30/2023]
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Fu C, Wang L, Tian G, Zhang C, Zhao Y, Xu H, Su M, Wang Y. Enhanced anticancer effect of oncostatin M combined with salinomycin in CD133 + HepG2 liver cancer cells. Oncol Lett 2018; 17:1798-1806. [PMID: 30675240 PMCID: PMC6341778 DOI: 10.3892/ol.2018.9796] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 11/02/2018] [Indexed: 12/24/2022] Open
Abstract
Oncostatin M (OSM) induces the differentiation of liver cancer stem cells (LCSCs) and increases sensitivity to the chemotherapeutic agent 5-fluorouracil, whereas salinomycin (Sal) induces apoptosis in cancer stem cells and inhibits the proliferation of liver cancer cells. However, there have been no studies investigating the anticancer effects of combination treatment with OSM and Sal. In the present study, we investigated the synergistic effects of OSM and Sal on LCSCs, the CD133+ subpopulations from HepG2 human liver cancer cells. CD133+ LCSCs were isolated using an immunomagnetic bead technique and identified through colony formation. After incubating with OSM and Sal, the ability of LCSC proliferation and invasion, as well as apoptosis rates were evaluated, and the expression of stemness-related genes was examined by quantitative real-time polymerase chain reaction. Additionally, the secretion of α-fetoprotein (AFP) and albumin (ALB) were analyzed by enzyme-linked immunosorbent assay. Our results indicated that OSM combined with Sal significantly suppressed LCSC proliferation and invasion and induced apoptosis, as determined by flow cytometry and increases in cleaved caspase-3 levels detected by western blotting. The results of the JC-1 staining assay indicated that this effect involved the mitochondrial pathway. Moreover, combination treatment reduced the expression of CD133 in LCSCs and suppressed stemness-related gene expression. Furthermore, the LCSCs produced lower levels of AFP and higher levels of ALB following combination treatment. In all experiments, combination treatment elicited more efficient anticancer effects on LCSCs as compared with single-drug treatment; therefore, our results demonstrated that combined treatment with OSM and Sal inhibited proliferation and induced differentiation and apoptosis in LCSCs, suggesting combined use of OSM and Sal as a therapeutic strategy for liver cancer.
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Affiliation(s)
- Changhao Fu
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Lu Wang
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Geer Tian
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Chen Zhang
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China.,Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences, Xiamen, Fujian 361021, P.R. China
| | - Yuanyuan Zhao
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Hao Xu
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Manman Su
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yi Wang
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
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Ji Y, Li H, Wang F, Gu L. PPARβ/δ Agonist GW501516 Inhibits Tumorigenicity of Undifferentiated Nasopharyngeal Carcinoma in C666-1 Cells by Promoting Apoptosis. Front Pharmacol 2018; 9:648. [PMID: 30002625 PMCID: PMC6031703 DOI: 10.3389/fphar.2018.00648] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 05/31/2018] [Indexed: 12/21/2022] Open
Abstract
Activation of peroxisome proliferator-activated receptor β/δ (PPARβ/δ) had been linked to inhibition on the proliferation and apoptosis in a few cancer cell lines. However, limited data exists regarding the role of PPARβ/δ in nasopharyngeal carcinoma (NPC). This study was undertaken to determine the effect of PPARβ/δ on cell proliferation, anchorage-dependent clonogenicity, and ectopic xenografts in the human NPC cell lines. Gene and protein expression of PPARβ/δ were reduced specifically in the poor- and un-differentiated NPC cell lines as compared with the control NP-69 cells. Ligand activation of PPARβ/δ by GW501516, a specific PPARβ/δ selective agonist, inhibited cell proliferation and colony formation strikingly, and induced a G2/M phase arrest in the EBV positive undifferentiated NPC C666-1 cells relative to the control cells. Moreover, GW501516 induced C666-1 cell apoptosis in a caspase and BAX dependent manner. In accordance with the in vitro result, GW501516 significantly suppressed the ectopic NPC xenograft tumorigenicity that derived from the C666-1 NPC cells in BALB/c nu/nu mice. This effect is greatly associated with its inhibition on the gene and protein expression of integrin-linked kinase (ILK) through activation of the AMPKα-dependent signaling pathways. Collectively, we showed that PPARβ/δ expression is in reverse correlation with the degree of differentiation in the NPC cell lines, and revealed the anti-tumorigenic effects of GW501516 in NPC cells by activation of AMPKα. This study suggested that PPARβ/δ targeting molecules may be useful for the poor-, and particularly un-differentiated NPC chemoprevention.
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Affiliation(s)
- Yangyang Ji
- Department of ENT, Central Hospital of Minhang District (Minhang Hospital Fudan University), Shanghai, China
| | - Hui Li
- Department of ENT, Central Hospital of Minhang District (Minhang Hospital Fudan University), Shanghai, China
| | - Fang Wang
- Department of ENT, Central Hospital of Minhang District (Minhang Hospital Fudan University), Shanghai, China
| | - Linglan Gu
- Department of ENT, Central Hospital of Minhang District (Minhang Hospital Fudan University), Shanghai, China
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Jiang J, Li H, Qaed E, Zhang J, Song Y, Wu R, Bu X, Wang Q, Tang Z. Salinomycin, as an autophagy modulator-- a new avenue to anticancer: a review. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:26. [PMID: 29433536 PMCID: PMC5809980 DOI: 10.1186/s13046-018-0680-z] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 01/15/2018] [Indexed: 12/25/2022]
Abstract
Since Salinomycin (Sal) emerged its ability to target breast cancer stem cells in 2009, numerous experiments have been carried out to test Sal’s anticancer effects. What deserve to be mentioned is that Sal can efficiently induce proliferation inhibition, cell death and metastasis suppression against human cancers from different origins both in vivo and in vitro without causing serious side effects as the conventional chemotherapeutical drugs on the body. There may be novel cell death pathways involving the anticancer effects of Sal except the conventional pathways, such as autophagic pathway. This review is focused on how autophagy involves the effects of Sal, trying to describe clearly and systematically why autophagy plays a vital role in predominant anticancer effects of Sal, including its distinctive characteristic. Based on recent advances, we present evidence that a dual role of Sal involving in autophagy may account for its unique anticancer effects - the preference for cancer cells. Further researches are required to confirm the authenticity of this suppose in order to develop an ideal anticancer drug.
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Affiliation(s)
- Jiang Jiang
- Department of Pharmacology, Dalian Medical University, 9 west section, south road of Lvshun, Dalian, 116044, China
| | - Hailong Li
- Department of Pharmacology, Dalian Medical University, 9 west section, south road of Lvshun, Dalian, 116044, China
| | - Eskandar Qaed
- Department of Pharmacology, Dalian Medical University, 9 west section, south road of Lvshun, Dalian, 116044, China
| | - Jing Zhang
- Department of Pharmacology, Dalian Medical University, 9 west section, south road of Lvshun, Dalian, 116044, China
| | - Yushu Song
- Department of Pharmacology, Dalian Medical University, 9 west section, south road of Lvshun, Dalian, 116044, China
| | - Rong Wu
- Department of Pharmacology, Dalian Medical University, 9 west section, south road of Lvshun, Dalian, 116044, China
| | - Xinmiao Bu
- Department of Pharmacology, Dalian Medical University, 9 west section, south road of Lvshun, Dalian, 116044, China
| | - Qinyan Wang
- Department of Pharmacology, Dalian Medical University, 9 west section, south road of Lvshun, Dalian, 116044, China
| | - Zeyao Tang
- Department of Pharmacology, Dalian Medical University, 9 west section, south road of Lvshun, Dalian, 116044, China
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Zhang Z, Zhao J, Mi Z, Pang Q, Wang A, Chen M, Liu X, Wei X, Liu T. Effects of salinomycin and 17‑AAG on proliferation of human gastric cancer cells in vitro. Mol Med Rep 2017. [PMID: 28627587 PMCID: PMC5562019 DOI: 10.3892/mmr.2017.6735] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The aim of the present study was to investigate the effects and mechanisms of 17-AAG combined with salinomycin treatment on proliferation and apoptosis of the SGC-7901 gastric cancer cell line. An MTT assay was used to detect the proliferation of SGC-7901 cells. Morphological alterations of cells were observed under inverted phase-contrast and fluorescence microscopes. Cell cycle and apoptosis were assessed by flow cytometry analysis. The protein expression of nuclear factor (NF)-κB p65 and Fas-ligand (L) were evaluated by immunocytochemistry. Salinomycin with a concentration range of 1–32 µmol/l was demonstrated to inhibit growth of SGC-7901 cells effectively, affect the morphology and apoptosis rate of cells, and arrest SGC-7901 cells in S phase. Furthermore, salinomycin significantly increased the protein expression of Fas-L and decreased the protein expression of NF-κB p65. The alterations in SGC-7901 cells co-treated with salinomycin and 17-AAG were more significant compared with cells treated with one drug only. In conclusion, the individual use of salinomycin and combined use with 17-AAG may significantly inhibit SGC-7901 gastric cancer cell proliferation and induce cell apoptosis. The potential mechanisms may be associated with upregulation of Fas-L and downregulation of NF-κB. These results provide a basis for the potential use of salinomycin in gastric cancer treatment.
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Affiliation(s)
- Zuwen Zhang
- Key Laboratory of Cancer Prevention and Control, Yan'an University, Yan'an, Shanxi 716000, P.R. China
| | - Jumei Zhao
- Key Laboratory of Cancer Prevention and Control, Yan'an University, Yan'an, Shanxi 716000, P.R. China
| | - Zhikuan Mi
- Key Laboratory of Cancer Prevention and Control, Yan'an University, Yan'an, Shanxi 716000, P.R. China
| | - Qiuxia Pang
- Key Laboratory of Cancer Prevention and Control, Yan'an University, Yan'an, Shanxi 716000, P.R. China
| | - Aihong Wang
- Key Laboratory of Cancer Prevention and Control, Yan'an University, Yan'an, Shanxi 716000, P.R. China
| | - Meini Chen
- Key Laboratory of Cancer Prevention and Control, Yan'an University, Yan'an, Shanxi 716000, P.R. China
| | - Xiaobin Liu
- Key Laboratory of Cancer Prevention and Control, Yan'an University, Yan'an, Shanxi 716000, P.R. China
| | - Xiaoli Wei
- Key Laboratory of Cancer Prevention and Control, Yan'an University, Yan'an, Shanxi 716000, P.R. China
| | - Tao Liu
- The First Ward of Department of Otolaryngology, The Affiliated Hospital of Yan'an University, Yan'an, Shanxi 716000, P.R. China
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Qian X, Tan C, Yang B, Wang F, Ge Y, Guan Z, Cai J. Astaxanthin increases radiosensitivity in esophageal squamous cell carcinoma through inducing apoptosis and G2/M arrest. Dis Esophagus 2017; 30:1-7. [PMID: 28475750 DOI: 10.1093/dote/dox027] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 03/23/2017] [Indexed: 12/11/2022]
Abstract
Nowadays esophageal squamous cell carcinoma (ESCC) is primarily treated by a comprehensive approach combining surgical resection and neoadjuvant chemo- or radiotherapy. However, ESCC is resistant to radiation therapy, resulting in its invasion, infiltration, and metastasis. It usually has rapidly progressed and has a poor outcome clinically. The purpose of this study is to determine the potential radiosensitizing effect of astaxanthin (ATX) and explore the underlying mechanisms in ESCC cells in vitro. ESCC cell lines were exposure to irradiation, in the presence or absence of ATX treatment. Cell viability and radiosensitization were tested by CCK8 assay and clonogenic survival assay, respectively. Cell apoptosis and the changes of cell cycle distribution were observed by flow cytometry. The protein expression of Bcl2, Bax, CyclinB1, and Cdc2 was examined by western blot analysis. It was shown that ATX improved radiosensitivity of ESCC cells and induced apoptosis and G2/M arrest via inhibiting Bcl2, CyclinB1, Cdc2, and promoting Bax expression. In conclusion, ATX might function as a promising radiosensitizer in ESCC cells by leading to apoptosis and G2/M arrest.
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