1
|
Seo HA, Moeng S, Sim S, Kuh HJ, Choi SY, Park JK. MicroRNA-Based Combinatorial Cancer Therapy: Effects of MicroRNAs on the Efficacy of Anti-Cancer Therapies. Cells 2019; 9:cells9010029. [PMID: 31861937 PMCID: PMC7016872 DOI: 10.3390/cells9010029] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/16/2019] [Accepted: 12/19/2019] [Indexed: 12/12/2022] Open
Abstract
The susceptibility of cancer cells to different types of treatments can be restricted by intrinsic and acquired therapeutic resistance, leading to the failure of cancer regression and remission. To overcome this problem, a combination therapy has been proposed as a fundamental strategy to improve therapeutic responses; however, resistance is still unavoidable. MicroRNA (miRNAs) are associated with cancer therapeutic resistance. The modulation of dysregulated miRNA levels through miRNA-based therapy comprising a replacement or inhibition approach has been proposed to sensitize cancer cells to other anti-cancer therapies. The combination of miRNA-based therapy with other anti-cancer therapies (miRNA-based combinatorial cancer therapy) is attractive, due to the ability of miRNAs to target multiple genes associated with the signaling pathways controlling therapeutic resistance. In this article, we present an overview of recent findings on the role of therapeutic resistance-related miRNAs in different types of cancer. We review the feasibility of utilizing dysregulated miRNAs in cancer cells and extracellular vesicles as potential candidates for miRNA-based combinatorial cancer therapy. We also discuss innate properties of miRNAs that need to be considered for more effective combinatorial cancer therapy.
Collapse
Affiliation(s)
- Hyun Ah Seo
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 24252, Korea; (H.A.S.); (S.M.); (S.Y.C.)
| | - Sokviseth Moeng
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 24252, Korea; (H.A.S.); (S.M.); (S.Y.C.)
| | - Seokmin Sim
- Generoath, Seachang-ro, Mapo-gu, Seoul 04168, Korea;
| | - Hyo Jeong Kuh
- Department of Medical Life Sciences, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 24252, Korea; (H.A.S.); (S.M.); (S.Y.C.)
| | - Jong Kook Park
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 24252, Korea; (H.A.S.); (S.M.); (S.Y.C.)
- Correspondence: or ; Tel.: +82-33-248-2114
| |
Collapse
|
2
|
Dou D, Ge X, Wang X, Xu X, Zhang Z, Seng J, Cao Z, Gu Y, Han M. EZH2 Contributes To Cisplatin Resistance In Breast Cancer By Epigenetically Suppressing miR-381 Expression. Onco Targets Ther 2019; 12:9627-9637. [PMID: 32009798 PMCID: PMC6859472 DOI: 10.2147/ott.s214104] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 09/23/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Emerging evidence reveals the vital role of enhancer of zeste homolog 2 (EZH2) in cancer chemoresistance. However, its function and molecular mechanisms in breast cancer chemoresistance remain largely unknown. METHODS Gene expression was evaluated using quantitative real-time PCR (qRT-PCR) and Western blot analysis. The functional roles of EZH2 and miR-381 in breast cancer were explored using cell MTT assay and flow cytometry analysis. The effect of EZH2 on miR-381 expression in transcriptional level was determined using Chromatin immunoprecipitation (ChIP) assay and Luciferase reporter assay. RESULTS In this study, we found that EZH2 was up-regulated in CDDP-resistant breast cancer tissues and cell lines. Breast cancer patients with high EZH2 expression had a poor prognosis. EZH2 silencing improved the sensitivity of MCF-7/CDDP and MDA-MB-231/CDDP cells towards CDDP. Moreover, EZH2 could epigenetically silence miR-381. miR-381 overexpression could overcome CDDP resistance in CDDP-resistant breast cancer cells. miR-381 knockdown weakened the inductive effect of EZH2 silencing on CDDP sensitivity of MCF-7/CDDP and MDA-MB-231/CDDP cells. Furthermore, EZH2 knockdown facilitated CDDP sensitivity of CDDP-resistant breast cancer cells in vivo. CONCLUSIONS Collectively, EZH2 depletion overcame CDDP resistance of breast cancer through epigenetically silencing miR-381, providing a novel therapeutic target for breast cancer chemoresistance.
Collapse
Affiliation(s)
- Dongwei Dou
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou475000, People’s Republic of China
| | - Xin Ge
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou475000, People’s Republic of China
| | - Xinxing Wang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou475000, People’s Republic of China
| | - Xiaodong Xu
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou475000, People’s Republic of China
| | - Zhe Zhang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou475000, People’s Republic of China
| | - Jingjing Seng
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou475000, People’s Republic of China
| | - Zhang Cao
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou475000, People’s Republic of China
| | - Yuanting Gu
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou475000, People’s Republic of China
| | - Mingli Han
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou475000, People’s Republic of China
| |
Collapse
|
3
|
Cardamonin, a natural chalcone, reduces 5-fluorouracil resistance of gastric cancer cells through targeting Wnt/β-catenin signal pathway. Invest New Drugs 2019; 38:329-339. [PMID: 31102118 DOI: 10.1007/s10637-019-00781-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 04/11/2019] [Indexed: 02/07/2023]
Abstract
Objectives Cardamonin (CD), an active chalconoid, has been extensively studied in a wide variety of human tumors. However, the effects and underlying mechanism of cardamonin on 5-fluorouracil (5-FU)-resistant gastric cancer (GC) remain largely unclear. This study aimed to investigate the antitumor effects of cardamonin on 5-FU-resistant GC cells and explore the molecular mechanisms underlying its therapeutic potential. Methods The antitumor activities of cardamonin, 5-FU and their combination against BGC-823 and BGC-823/5-FU cells were determined using cytotoxicity assay, flow cytometry-based cell cycle analysis and Annexin V apoptosis assay. The effect of cardamonin on P-glycoprotein activity was assessed by Rh123 uptake assay. Real-time PCR, Western blotting and Co-immunoprecipitation analysis were carried out to assess the inhibition of Wnt/β-catenin signaling pathway. A xenograft mouse model was established using BALB/c nude mice to examine the combinatorial effects of cardamonin and 5-FU on tumor growth. Results Our data provided the first demonstration that cardamonin significantly enhanced the chemosensitivity of 5-FU in GC cells via suppression of Wnt/β-catenin signaling pathway. Additionally, the combination of cardamonin and 5-FU might result in the apoptosis and cell cycle arrest of BGC-823/5-FU cells, accompanied by the downregulated expression levels of P-glycoprotein, β-catenin and TCF4. More importantly, our results demonstrated that cardamonin specifically disrupted the formation of β-catenin/TCF4 complex, leading to TCF4-mediated transcriptional activation in 5-FU-resistant GC cells. Besides, through a xenograft mouse model, co-administration of cardamonin and 5-FU significantly retarded tumor growth in vivo, thus, confirming our in vitro findings. Conclusions Overall, this study revealed that cotreatment of cardamonin and 5-FU could strongly potentiate the antitumor activity of 5-FU, and put forth cardamonin as a rational therapeutic strategy for drug-resistant GC treatment.
Collapse
|
4
|
Wang C, Li X, Zhang J, Ge Z, Chen H, Hu J. EZH2 contributes to 5-FU resistance in gastric cancer by epigenetically suppressing FBXO32 expression. Onco Targets Ther 2018; 11:7853-7864. [PMID: 30464532 PMCID: PMC6225849 DOI: 10.2147/ott.s180131] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Background Increasing evidence suggests the involvement of enhancer of zeste homologue 2 (EZH2) in chemoresistance of cancer treatment. Nevertheless, its function and molecular mechanisms in gastric cancer (GC) chemoresistance are still not well elucidated. Materials and methods In the present study, we investigated the functional role of EZH2 in 5-fluorouracil (5-FU) resistance of GC cells and discovered the underlying molecular mechanism. Results Results revealed that EZH2 was upregulated in 5-FU-resistant GC tissues and cell lines. High ZEH2 expression was correlated with poor prognosis of GC patients. EZH2 knockdown enhanced 5-FU sensitivity of AGS/5-FU and SGC-7901/5-FU cells. Moreover, EZH2 could epigenetically suppress FBXO32 expression. FBXO32 overexpression could mimic the functional role of downregulated EZH2 in 5-FU resistance. FBXO32 knockdown counteracted the inductive effect of EZH2 inhibition on 5-FU sensitivity of AGS/5-FU and SGC-7901/5-FU cells. Furthermore, EZH2 knockdown facilitated 5-FU sensitivity of 5-FU-resistant GC cells in vivo. Conclusion In summary, EZH2 depletion overcame 5-FU resistance in GC by epigenetically silencing FBXO32, providing a novel therapeutic target for GC chemoresistance.
Collapse
Affiliation(s)
- Chenyu Wang
- Department of Anorectal, Huaihe Hospital of Henan University, Kaifeng, 475000, People's Republic of China,
| | - Xingwang Li
- Department of Anorectal, Huaihe Hospital of Henan University, Kaifeng, 475000, People's Republic of China,
| | - Junjie Zhang
- Department of Anorectal, Huaihe Hospital of Henan University, Kaifeng, 475000, People's Republic of China,
| | - Zheng Ge
- Department of Anorectal, Huaihe Hospital of Henan University, Kaifeng, 475000, People's Republic of China,
| | - Hejin Chen
- Department of Anorectal, Huaihe Hospital of Henan University, Kaifeng, 475000, People's Republic of China,
| | - Junhong Hu
- Department of Anorectal, Huaihe Hospital of Henan University, Kaifeng, 475000, People's Republic of China,
| |
Collapse
|
5
|
Jiang B, Li Y, Qu X, Zhu H, Tan Y, Fan Q, Jiang Y, Liao M, Wu X. Long noncoding RNA cancer susceptibility candidate 9 promotes doxorubicin‑resistant breast cancer by binding to enhancer of zeste homolog 2. Int J Mol Med 2018; 42:2801-2810. [PMID: 30106089 DOI: 10.3892/ijmm.2018.3812] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 07/24/2018] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to investigate the effect of the long noncoding RNA cancer susceptibility candidate 9 (CASC9) on doxorubicin (DOX)‑resistant breast cancer and to reveal the potential underlying mechanisms. The expression of CASC9 in breast cancer tissues and cell lines, in addition to drug‑resistant breast cancer cells (MCF‑7/DOX), was detected by reverse transcription‑quantitative polymerase chain reaction. Subsequently, MCF‑7/DOX cells were transfected with the silencing vector pS‑CASC9, containing enhancer of zeste homolog 2 (EZH2), multidrug resistance protein 1 (MDR1) or control small interfering (si)RNAs. The viability, apoptosis, migration and invasion of the transfected cells were assessed via an MTT assay, flow cytometry and a Transwell assay, respectively. The expression levels of apoptosis‑associated proteins (apoptosis regulator Bcl‑2, apoptosis regulator BAX, caspase‑3 and caspase‑9) were determined by western blotting. An RNA pull‑down assay was performed to identify CASC9‑binding candidates. In addition, the expression levels of the MDR1 gene and its encoded protein, P‑glycoprotein, were detected. CASC9 expression was upregulated in breast cancer tissues and cell lines, and drug‑resistant breast cancer cells. CASC9 knockdown significantly inhibited the growth and metastasis of drug‑resistant breast cancer cells, and decreased the half‑maximal inhibitory concentration DOX in MCF‑7/DOX cells. The RNA pull‑down assay revealed that CASC9 engaged EZH2; EZH2 siRNA significantly inhibited the cell growth, metastasis and chemoresistance of MCF‑7/DOX cells. Additionally, EZH2 may regulate the MDR1 gene. The present study demonstrated the oncogenic role of CASC9 in drug‑resistant breast cancer by binding to EZH2 and regulating the MDR1 gene. Modulation of CASC9 expression may be a promising target in the therapy of breast cancer and drug‑resistant breast cancer.
Collapse
Affiliation(s)
- Baohong Jiang
- Department of Pharmacy, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Yuehua Li
- Department of Medical Oncology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Xiaofei Qu
- Department of Medical Oncology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Hongbo Zhu
- Department of Medical Oncology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Yeru Tan
- Department of Medical Oncology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Qun Fan
- Department of Medical Oncology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Yiling Jiang
- Department of Medical Oncology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Mingchu Liao
- Department of Medical Oncology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Xiaoping Wu
- Department of Medical Oncology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| |
Collapse
|
6
|
Zhou D, Liu W, Liang S, Sun B, Liu A, Cui Z, Han X, Yuan L. Apoptin-derived peptide reverses cisplatin resistance in gastric cancer through the PI3K-AKT signaling pathway. Cancer Med 2018; 7:1369-1383. [PMID: 29522284 PMCID: PMC5911602 DOI: 10.1002/cam4.1380] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 01/06/2018] [Accepted: 01/12/2018] [Indexed: 12/17/2022] Open
Abstract
The prognosis of gastric cancer (GC) remains poor due to clinical drug resistance, and novel drugs are urgently needed. Apoptin-derived peptide (AdP) is an antitumor polypeptide constructed in our laboratory that has been used to combat cisplatin (CDDP) resistance in GC cells. MTT and colony-formation assays and Hoechst 33342 staining were used to measure the cytotoxicity of CDDP and AdP in GC cells. Cell apoptosis was measured using an Annexin-V-FITC/PI dual staining assay. Western blot analysis was conducted to detect the expression of proteins in the PI3K/AKT signaling pathway and resistance-related markers. AdP exerted a specific cytotoxic effect on GC cells and CDDP-resistant GC cells in a concentration- and time-dependent manner. AdP also suppressed cell invasion and migration. Additionally, AdP inhibited the expression of p85, AKT, p-p85, p-AKT, multidrug resistance 1 (MDR1), and aryl hydrocarbon nuclear translocator (ARNT) in the PI3K/AKT/ARNT signaling pathway, which promoted apoptosis and necrosis in GC cells. AdP promoted apoptosis in CDDP-resistant GC cells by suppressing the PI3K/AKT/ARNT signaling pathway and might be considered a candidate agent for the clinical treatment of cisplatin-resistant GC.
Collapse
Affiliation(s)
- Danyang Zhou
- Department of Biochemistry and Molecular BiologyHarbin Medical UniversityDaqing CampusDaqingHeilongjiang163319China
| | - Wenjing Liu
- Clinical Laboratory of Daqing People’s Hospital DaqigHelongjiang163310China
| | - Songhe Liang
- Department of Biochemistry and Molecular BiologyHarbin Medical UniversityDaqing CampusDaqingHeilongjiang163319China
| | - Banghao Sun
- Department of Biochemistry and Molecular BiologyHarbin Medical UniversityDaqing CampusDaqingHeilongjiang163319China
| | - Anqi Liu
- Department of Biochemistry and Molecular BiologyHarbin Medical UniversityDaqing CampusDaqingHeilongjiang163319China
| | - Zhongqi Cui
- Department of Clinical Laboratory MedicineShanghai Tenth People's Hospital of Tongji UniversityShanghai200072China
| | - Xue Han
- Department of Biochemistry and Molecular BiologyHarbin Medical UniversityDaqing CampusDaqingHeilongjiang163319China
| | - Lijie Yuan
- Department of Biochemistry and Molecular BiologyHarbin Medical UniversityDaqing CampusDaqingHeilongjiang163319China
| |
Collapse
|
7
|
USP22 knockdown enhanced chemosensitivity of hepatocellular carcinoma cells to 5-Fu by up-regulation of Smad4 and suppression of Akt. Oncotarget 2018; 8:24728-24740. [PMID: 28445968 PMCID: PMC5421883 DOI: 10.18632/oncotarget.15798] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 02/13/2017] [Indexed: 12/31/2022] Open
Abstract
USP22, a member of the deubiquitinases (DUBs) family, is known to be a key subunit of the human Spt-Ada-Gcn5 acetyltransferase (hSAGA) transcriptional cofactor complex. Within hSAGA, USP22 removes ubiquitin from histone proteins, thus regulating the transcription and expression of downstream genes. USP22 plays important roles in many cancers; however, its effect and the mechanism underlying HCC chemoresistance remain unclear. In the present study, we found that USP22 was highly expressed in chemoresistant HCC tissues and cells and was correlated with the prognosis of HCC patients who received chemotherapy. Silencing USP22 in chemoresistant HCC Bel/Fu cells dramatically inhibited proliferation, migration, invasion and epithelial-mesenchymal transition in vitro; suppressed tumorigenic and metastatic capacities in vivo; and inhibited drug resistance-related proteins (MDR1, LRP, MRP1). Mechanistically, we found that USP22 knockdown exerts its function through down-regulating PI3K and activating Smad4, which inhibited phosphorylation of Akt. Silencing Smad4 blocked USP22 knockdown-induced Akt inhibition in Bel/Fu cells. Our results, for the first time, provide evidence that USP22 plays a critical role in the development of chemoresistant HCC cells and that high USP22 expression serves as a molecular marker for the prognosis of HCC patients who undergo chemotherapy.
Collapse
|
8
|
Zhang C, Ma Q, Shi Y, Li X, Wang M, Wang J, Ge J, Chen Z, Wang Z, Jiang H. A novel 5-fluorouracil-resistant human esophageal squamous cell carcinoma cell line Eca-109/5-FU with significant drug resistance-related characteristics. Oncol Rep 2017; 37:2942-2954. [DOI: 10.3892/or.2017.5539] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 10/31/2016] [Indexed: 11/05/2022] Open
|
9
|
Xia LL, Tang YB, Song FF, Xu L, Ji P, Wang SJ, Zhu JM, Zhang Y, Zhao GP, Wang Y, Liu TT. DCTPP1 attenuates the sensitivity of human gastric cancer cells to 5-fluorouracil by up-regulating MDR1 expression epigenetically. Oncotarget 2016; 7:68623-68637. [PMID: 27612427 PMCID: PMC5356578 DOI: 10.18632/oncotarget.11864] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 08/24/2016] [Indexed: 01/08/2023] Open
Abstract
Gastric cancer (GC) is among the most malignant cancers with high incidence and poor prognoses worldwide as well as in China. dCTP pyrophosphatase 1 (DCTPP1) is overexpressed in GC with a poor prognosis. Given chemotherapeutic drugs share similar structures with pyrimidine nucleotides, the role of DCTPP1 in affecting the drug sensitivity in GC remains unclear and is worthy of investigation. In the present study, we reported that DCTPP1-knockdown GC cell line BGC-823 exhibited more sensitivity to 5-fluorouracil (5-FU), demonstrated by the retardation of cell proliferation, the increase in cell apoptosis, cell cycle arrest at S phase and more DNA damages. Multidrug resistance 1 (MDR1) expression was unexpectedly down-regulated in DCTPP1-knockdown BGC-823 cells together with more intracellular 5-FU accumulation. This was in large achieved by the elevated methylation in promoter region of MDR1 gene. The intracellular 5-methyl-dCTP level increased in DCTPP1-knockdown BGC-823 cells as well. More significantly, the strong correlation of DCTPP1 and MDR1 expression was detectable in clinical GC samples. Our results thus imply a novel mechanism of chemoresistance mediated by the overexpression of DCTPP1 in GC. It is achieved partially through decreasing the concentration of intracellular 5-methyl-dCTP, which in turn results in promoter hypomethylation and hyper-expression of drug resistant gene MDR1. Our study suggests DCTPP1 as a potential indicative biomarker for the predication of chemoresistance in GC.
Collapse
Affiliation(s)
- Li-liang Xia
- State Key Laboratory of Genetic Engineering, Department of Microbiology, School of Life Sciences and Institute of Biomedical Sciences, Fudan University, Shanghai, China
- Shanghai-MOST Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai, China
| | - Ya-bin Tang
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Department of Pharmacology and Chemical Biology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Fei-fei Song
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Department of Pharmacology and Chemical Biology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ling Xu
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Department of Pharmacology and Chemical Biology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ping Ji
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Department of Pharmacology and Chemical Biology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Shu-jun Wang
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Department of Pharmacology and Chemical Biology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ji-min Zhu
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yong Zhang
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Department of Pharmacology and Chemical Biology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Guo-ping Zhao
- State Key Laboratory of Genetic Engineering, Department of Microbiology, School of Life Sciences and Institute of Biomedical Sciences, Fudan University, Shanghai, China
- Shanghai-MOST Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai, China
- Department of Microbiology and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong SAR, China
| | - Ying Wang
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Department of Pharmacology and Chemical Biology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Tao-tao Liu
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| |
Collapse
|
10
|
Huang J, Yang G, Huang Y, Kong W, Zhang S. 1,25(OH)2D3 inhibits the progression of hepatocellular carcinoma via downregulating HDAC2 and upregulating P21(WAFI/CIP1). Mol Med Rep 2015; 13:1373-80. [PMID: 26676829 DOI: 10.3892/mmr.2015.4676] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 10/28/2015] [Indexed: 11/05/2022] Open
Abstract
Vitamin D, termed 1,25(OH)2D3 in it's active form, activity is associated with a reduced risk of hepatocellular carcinoma (HCC) and is an important immune regulator. However, the detail molecular mechanisms underlying the effects of 1,25(OH)2D3 on the progression of HCC are widely unknown. Histone deacetwylase 2 (HDAC2) is usually expressed at high levels in tumors, and its downregulation leads to high expression levels of cell cycle components, including p21(WAF1/Cip1), a well-characterized modulator, which is critical in cell senescence and apoptosis. The present study investigated whether vitamin D inhibits HCC via the regulation of HDAC2 and p21(WAF1/Cip1). Firstly, the toxic concentrations of 1,25(OH)2D3 were determined, according to trypan blue and [(3)H]thymidine incorporation assays. Secondly, HCC cells lines were treated with different concentrations of 1,25(OH)2D3. The expression of HDAC2 was either silenced via short hairpin (sh)RNA or induced by transfection of plasmids expressing the HDAC2 gene in certain HCC cells. Finally the mRNA and protein levels of HDAC2 and p21(WAF1/Cip1) were measured using reverse transcription-quantitative polymerase chain reaction and western blot analyses. The results revealed that 1,25(OH)2D3 treatment reduced the expression of HDAC2 and increased the expression of p21(WAF1/Cip1), in a dose-dependent manner, resulting in the reduction of HCC growth. Elevated levels of HDAC2 reduced the expression of p21(WAF1/Cip1), resulting in an increase in HCC growth. HDAC2 shRNA increased the expression of p21(WAF1/Cip1), resulting in reduction in HCC growth. Thus, 1,25(OH)2D3 exerted antitumorigenic effects through decreasing the expression levels of HDAC2 and increasing the expression of p21(WAF1/Cip1), which inhibited the development of HCC and may indicate the possible underlying mechanism. These results suggest that vitamin D3 may be developed as a potential drug for effective therapy in the treatment of HCC.
Collapse
Affiliation(s)
- Jian Huang
- Biochemistry Department, Affiliated Hospital of Guiyang Medical College, Guiyang, Guizhou 550004, P.R. China
| | - Guozhen Yang
- Medical Laboratory, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Yunzhu Huang
- Biochemistry Department, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Weiying Kong
- Biochemistry Department, Affiliated Hospital of Guiyang Medical College, Guiyang, Guizhou 550004, P.R. China
| | - Shu Zhang
- Medical Laboratory, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| |
Collapse
|
11
|
Clinical and prognostic relevance of EZH2 in breast cancer: A meta-analysis. Biomed Pharmacother 2015; 75:218-25. [DOI: 10.1016/j.biopha.2015.07.038] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 07/26/2015] [Indexed: 11/22/2022] Open
|
12
|
Wang W, Qin JJ, Voruganti S, Nag S, Zhou J, Zhang R. Polycomb Group (PcG) Proteins and Human Cancers: Multifaceted Functions and Therapeutic Implications. Med Res Rev 2015; 35:1220-67. [PMID: 26227500 DOI: 10.1002/med.21358] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Polycomb group (PcG) proteins are transcriptional repressors that regulate several crucial developmental and physiological processes in the cell. More recently, they have been found to play important roles in human carcinogenesis and cancer development and progression. The deregulation and dysfunction of PcG proteins often lead to blocking or inappropriate activation of developmental pathways, enhancing cellular proliferation, inhibiting apoptosis, and increasing the cancer stem cell population. Genetic and molecular investigations of PcG proteins have long been focused on their PcG functions. However, PcG proteins have recently been shown to exert non-classical-Pc-functions, contributing to the regulation of diverse cellular functions. We and others have demonstrated that PcG proteins regulate the expression and function of several oncogenes and tumor suppressor genes in a PcG-independent manner, and PcG proteins are associated with the survival of patients with cancer. In this review, we summarize the recent advances in the research on PcG proteins, including both the Pc-repressive and non-classical-Pc-functions. We specifically focus on the mechanisms by which PcG proteins play roles in cancer initiation, development, and progression. Finally, we discuss the potential value of PcG proteins as molecular biomarkers for the diagnosis and prognosis of cancer, and as molecular targets for cancer therapy.
Collapse
Affiliation(s)
- Wei Wang
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, 79106.,Center for Cancer Biology and Therapy, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, 79106
| | - Jiang-Jiang Qin
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, 79106
| | - Sukesh Voruganti
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, 79106
| | - Subhasree Nag
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, 79106
| | - Jianwei Zhou
- Department of Molecular Cell Biology and Toxicology, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, 210029, P. R. China
| | - Ruiwen Zhang
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, 79106.,Center for Cancer Biology and Therapy, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, 79106
| |
Collapse
|
13
|
Ito D, Childress M, Mason N, Winter A, O'Brien T, Henson M, Borgatti A, Lewellen M, Krick E, Stewart J, Lahrman S, Rajwa B, Scott MC, Seelig D, Koopmeiners J, Ruetz S, Modiano J. A double blinded, placebo-controlled pilot study to examine reduction of CD34 +/CD117 +/CD133 + lymphoma progenitor cells and duration of remission induced by neoadjuvant valspodar in dogs with large B-cell lymphoma. F1000Res 2015; 4:42. [PMID: 28357033 PMCID: PMC5357040 DOI: 10.12688/f1000research.6055.3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/13/2017] [Indexed: 01/15/2023] Open
Abstract
We previously described a population of lymphoid progenitor cells (LPCs) in canine B-cell lymphoma defined by retention of the early progenitor markers CD34 and CD117 and “slow proliferation” molecular signatures that persist in the xenotransplantation setting. We examined whether valspodar, a selective inhibitor of the ATP binding cassette B1 transporter (ABCB1, a.k.a., p-glycoprotein/multidrug resistance protein-1) used in the neoadjuvant setting would sensitize LPCs to doxorubicin and extend the length of remission in dogs with therapy naïve large B-cell lymphoma. Twenty dogs were enrolled into a double-blinded, placebo controlled study where experimental and control groups received oral valspodar (7.5 mg/kg) or placebo, respectively, twice daily for five days followed by five treatments with doxorubicin 21 days apart with a reduction in the first dose to mitigate the potential side effects of ABCB1 inhibition. Lymph node and blood LPCs were quantified at diagnosis, on the fourth day of neoadjuvant period, and 1-week after the first chemotherapy dose. Valspodar therapy was well tolerated. There were no differences between groups in total LPCs in lymph nodes or peripheral blood, nor in event-free survival or overall survival. Overall, we conclude that valspodar can be administered safely in the neoadjuvant setting for canine B-cell lymphoma; however, its use to attenuate ABCB1
+ cells does not alter the composition of lymph node or blood LPCs, and it does not appear to be sufficient to prolong doxorubicin-dependent remissions in this setting.
Collapse
Affiliation(s)
- Daisuke Ito
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Michael Childress
- Department of Veterinary Clinical Sciences, Purdue University College of Veterinary Medicine, West Lafayette, IN, 47907, USA
| | - Nicola Mason
- Department of Clinical Studies, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, 19104, USA.,Department of Pathology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, 19104, USA
| | - Amber Winter
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Clinical Investigation Center, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA
| | - Timothy O'Brien
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA.,Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Stem Cell Institute, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Michael Henson
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Antonella Borgatti
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Mitzi Lewellen
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Erika Krick
- Department of Clinical Studies, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, 19104, USA
| | - Jane Stewart
- Department of Veterinary Clinical Sciences, Purdue University College of Veterinary Medicine, West Lafayette, IN, 47907, USA
| | - Sarah Lahrman
- Department of Veterinary Clinical Sciences, Purdue University College of Veterinary Medicine, West Lafayette, IN, 47907, USA
| | - Bartek Rajwa
- Department of Basic Medical Sciences, Purdue University College of Veterinary Medicine, West Lafayette, IN, 47907, USA
| | - Milcah C Scott
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Davis Seelig
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Joseph Koopmeiners
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA.,Division of Biostatistics, School of Public Health, University of Minnesota, Minneapolis, MN, 55455, USA
| | | | - Jaime Modiano
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA.,Stem Cell Institute, University of Minnesota, Minneapolis, MN, 55455, USA.,Center for Immunology, University of Minnesota, Minneapolis, MN, 55455, USA
| |
Collapse
|
14
|
Ito D, Childress M, Mason N, Winter A, O'Brien T, Henson M, Borgatti A, Lewellen M, Krick E, Stewart J, Lahrman S, Rajwa B, Scott MC, Seelig D, Koopmeiners J, Ruetz S, Modiano J. A double blinded, placebo-controlled pilot study to examine reduction of CD34 +/CD117 +/CD133 + lymphoma progenitor cells and duration of remission induced by neoadjuvant valspodar in dogs with large B-cell lymphoma. F1000Res 2015; 4:42. [PMID: 28357033 DOI: 10.12688/f1000research.6055.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/09/2015] [Indexed: 01/30/2023] Open
Abstract
We previously described a population of lymphoid progenitor cells (LPCs) in canine B-cell lymphoma defined by retention of the early progenitor markers CD34 and CD117 and "slow proliferation" molecular signatures that persist in the xenotransplantation setting. We examined whether valspodar, a selective inhibitor of the ATP binding cassette B1 transporter (ABCB1, a.k.a., p-glycoprotein/multidrug resistance protein-1) used in the neoadjuvant setting would sensitize LPCs to doxorubicin and extend the length of remission in dogs with therapy naïve large B-cell lymphoma. Twenty dogs were enrolled into a double-blinded, placebo controlled study where experimental and control groups received oral valspodar (7.5 mg/kg) or placebo, respectively, twice daily for five days followed by five treatments with doxorubicin 21 days apart with a reduction in the first dose to mitigate the potential side effects of ABCB1 inhibition. Lymph node and blood LPCs were quantified at diagnosis, on the fourth day of neoadjuvant period, and 1-week after the first chemotherapy dose. Valspodar therapy was well tolerated. There were no differences between groups in total LPCs in lymph nodes or peripheral blood, nor in event-free survival or overall survival. Overall, we conclude that valspodar can be administered safely in the neoadjuvant setting for canine B-cell lymphoma; however, its use to attenuate ABCB1 + cells does not alter the composition of lymph node or blood LPCs, and it does not appear to be sufficient to prolong doxorubicin-dependent remissions in this setting.
Collapse
Affiliation(s)
- Daisuke Ito
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Michael Childress
- Department of Veterinary Clinical Sciences, Purdue University College of Veterinary Medicine, West Lafayette, IN, 47907, USA
| | - Nicola Mason
- Department of Clinical Studies, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, 19104, USA.,Department of Pathology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, 19104, USA
| | - Amber Winter
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Clinical Investigation Center, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA
| | - Timothy O'Brien
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA.,Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Stem Cell Institute, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Michael Henson
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Antonella Borgatti
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Mitzi Lewellen
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Erika Krick
- Department of Clinical Studies, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, 19104, USA
| | - Jane Stewart
- Department of Veterinary Clinical Sciences, Purdue University College of Veterinary Medicine, West Lafayette, IN, 47907, USA
| | - Sarah Lahrman
- Department of Veterinary Clinical Sciences, Purdue University College of Veterinary Medicine, West Lafayette, IN, 47907, USA
| | - Bartek Rajwa
- Department of Basic Medical Sciences, Purdue University College of Veterinary Medicine, West Lafayette, IN, 47907, USA
| | - Milcah C Scott
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Davis Seelig
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Joseph Koopmeiners
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA.,Division of Biostatistics, School of Public Health, University of Minnesota, Minneapolis, MN, 55455, USA
| | | | - Jaime Modiano
- Animal Cancer Care and Research Program, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA.,Stem Cell Institute, University of Minnesota, Minneapolis, MN, 55455, USA.,Center for Immunology, University of Minnesota, Minneapolis, MN, 55455, USA
| |
Collapse
|