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Finnerty MC, Leach FE, Zakharia Y, Nepple KG, Bartlett MG, Henry MD, Cummings BS. Identification of blood lipid markers of docetaxel treatment in prostate cancer patients. Sci Rep 2024; 14:22069. [PMID: 39333185 PMCID: PMC11436995 DOI: 10.1038/s41598-024-73074-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Accepted: 09/13/2024] [Indexed: 09/29/2024] Open
Abstract
Docetaxel is commonly used for treatment of castration-resistant prostate cancer. Unfortunately, many prostate cancer patients develop resistance to docetaxel. Clinical markers less invasive than biopsies, such as blood samples, would be ideal for monitoring and predicting patient treatment outcomes to docetaxel. Lipid alterations are often associated with the progression of many cancers, including prostate cancer. This study investigated the use of lipids from whole blood as clinical markers for docetaxel resistance in a small cohort of patients with prostate cancer. Qualitative lipidomics was performed by liquid chromatography-tandem mass spectrometry to assess the lipid composition of prostate cancer cells exposed to docetaxel as well as whole blood from prostate cancer patients before, during and after docetaxel treatment. Three patients had castration resistant prostate cancer, three had castration sensitive prostate cancer, and four had de novo prostate cancer during the extent of the study. Mean decrease accuracy and classical univariate receiving operating characteristic curve analyses were performed to identify potential biomarkers. In total, 245 and 221 altered lipids were identified from a second stage of mass spectrometry analysis of prostate cancer cells and clinical blood samples, respectively. Both models indicated that docetaxel treatment altered ether-linked phosphatidylcholines, lysophosphatidylcholine, diacylglycerols, ceramides, hexosylceramides, and sphingomyelins. The results also indicated several lipid changes were associated with sphingolipid signaling and metabolism, and glycerophospholipid metabolism. Collectively, these data suggest the potential usage of identified lipid species as indicators of docetaxel resistance in prostate cancer.
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Affiliation(s)
- Morgan C Finnerty
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, Athens, GA, 30602, USA
| | - Franklin E Leach
- Department of Chemistry, University of Georgia, Athens, GA, 30602, USA
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, 30602, USA
| | - Yousef Zakharia
- Department of Molecular Physiology and Biophysics, University of Iowa, Iowa City, IA, 52242, USA
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA, 52242, USA
| | - Kenneth G Nepple
- Department of Urology, University of Iowa, Iowa City, IA, 52242, USA
| | - Michael G Bartlett
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, Athens, GA, 30602, USA
| | - Michael D Henry
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA, 52242, USA
- Department of Internal Medicine, University of Iowa, Iowa City, IA, 52242, USA
| | - Brian S Cummings
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, Athens, GA, 30602, USA.
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI, 48202, USA.
- Interdisciplinary Toxicology Program, University of Georgia, Athens, GA, 30602, USA.
- College of Pharmacy and Health Sciences, Wayne State University, 259 Mack Avenue, Detroit, MI, 48201, USA.
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Duan Y, Deng M, Liu B, Meng X, Liao J, Qiu Y, Wu Z, Lin J, Dong Y, Duan Y, Sun Y. Mitochondria targeted drug delivery system overcoming drug resistance in intrahepatic cholangiocarcinoma by reprogramming lipid metabolism. Biomaterials 2024; 309:122609. [PMID: 38754290 DOI: 10.1016/j.biomaterials.2024.122609] [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: 04/08/2024] [Accepted: 05/07/2024] [Indexed: 05/18/2024]
Abstract
The challenge of drug resistance in intrahepatic cholangiocarcinoma (ICC) is intricately linked with lipid metabolism reprogramming. The hepatic lipase (HL) and the membrane receptor CD36 are overexpressed in BGJ398-resistant ICC cells, while they are essential for lipid uptake, further enhancing lipid utilization in ICC. Herein, a metal-organic framework-based drug delivery system (OB@D-pMOF/CaP-AC, DDS), has been developed. The specifically designed DDS exhibits a successive targeting property, enabling it to precisely target ICC cells and their mitochondria. By specifically targeting the mitochondria, DDS produces reactive oxygen species (ROS) through its sonodynamic therapy effect, achieving a more potent reduction in ATP levels compared to non-targeted approaches, through the impairment of mitochondrial function. Additionally, the DDS strategically minimizes lipid uptake through the incorporation of the anti-HL drug, Orlistat, and anti-CD36 monoclonal antibody, reducing lipid-derived energy production. This dual-action strategy on both mitochondria and lipids can hinder energy utilization to restore drug sensitivity to BGJ398 in ICC. Moreover, an orthotopic mice model of drug-resistant ICC was developed, which serves as an exacting platform for evaluating the multifunction of designed DDS. Upon in vivo experiments with this model, the DDS demonstrated exceptional capabilities in suppressing tumor growth, reprogramming lipid metabolism and improving immune response, thereby overcoming drug resistance. These findings underscore the mitochondria-targeted DDS as a promising and innovative solution in ICC drug resistance.
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Affiliation(s)
- Yi Duan
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China
| | - Mengqiong Deng
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China
| | - Bin Liu
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China
| | - Xianwei Meng
- Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jinghan Liao
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China
| | - Yijie Qiu
- Department of Ultrasound, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, 200092, Shanghai, China
| | - Zhihua Wu
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China
| | - Jiangtao Lin
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China
| | - Yi Dong
- Department of Ultrasound, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, 200092, Shanghai, China.
| | - Yourong Duan
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China.
| | - Ying Sun
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China.
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Yang J, Xiong X, Zheng W, Liao X, Xu H, Yang L, Wei Q. Evaluation of Survival Outcomes Among Black and White Patients with Metastatic Castration-resistant Prostate Cancer: A Systematic Review and Meta-analysis. EUR UROL SUPPL 2024; 61:10-17. [PMID: 38384441 PMCID: PMC10879936 DOI: 10.1016/j.euros.2024.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/12/2024] [Indexed: 02/23/2024] Open
Abstract
Context Data on racial disparities among patients with metastatic castration-resistant prostate cancer (mCRPC) are limited and there is no uniform conclusion on differences by race in this setting. Objective To provide the latest evidence on racial disparities in survival outcomes between Black and White patients receiving systemic therapies for mCRPC. Evidence acquisition Our study was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. We systematically searched the PubMed, Web of Science, and Cochrane Library databases up to September 2023 to identify potentially relevant studies. Overall survival (OS) and progression-free survival (PFS) were the outcomes of interest. Pooled hazard ratios (HRs) with 95% confidence intervals (CIs) were evaluated. Evidence synthesis Nine studies involving 9462 patients with mCRPC (2058 Black and 7404 White men) met the eligibility criteria and were included. Pooled estimates demonstrated significantly better OS for Black than for White men (HR 0.75, 95% CI 0.70-0.80; p < 0.0001). The results were similar in a subgroup of men receiving androgen receptor-targeted therapies (HR 0.72, 95% CI 0.66-0.78; p < 0.0001) and a subgroup of men receiving other treatments (HR 0.79, 95% CI 0.71-0.88; p < 0.0001). Likewise, significantly favorable PFS was observed for Black men receiving ARTs in comparison to their White counterparts (HR 0.84, 95% CI 0.71-0.99; p = 0.0373). Conclusions Overall, our meta-analysis of survival outcomes for men with mCRPC stratified by race revealed a significant survival benefit for Black men in comparison to their White counterparts, regardless of systemic therapeutic agent. Patient summary Both biological and nonbiological factors could account for racial differences in the efficacy of systemic treatments for metastatic prostate cancer that is resistant to hormone therapy. Our review provides the latest reliable evidence showing better survival outcomes for Black than for White men. The results will be helpful in further understanding the molecular mechanisms that might explain racial differences in this disease stage and in planning treatment.
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Affiliation(s)
| | | | | | - Xinyang Liao
- Department of Urology, Institute of Urology, Center of Biomedical Big Data and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, China
| | - Hang Xu
- Department of Urology, Institute of Urology, Center of Biomedical Big Data and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, China
| | - Lu Yang
- Department of Urology, Institute of Urology, Center of Biomedical Big Data and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, China
| | - Qiang Wei
- Department of Urology, Institute of Urology, Center of Biomedical Big Data and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, China
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van der Putten E, Wosikowski K, Beijnen JH, Imre G, Freund CR. Ritonavir reverses resistance to docetaxel and cabazitaxel in prostate cancer cells with acquired resistance to docetaxel. CANCER DRUG RESISTANCE (ALHAMBRA, CALIF.) 2024; 7:3. [PMID: 38318527 PMCID: PMC10838382 DOI: 10.20517/cdr.2023.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 01/08/2024] [Accepted: 01/29/2024] [Indexed: 02/07/2024]
Abstract
Aim: Docetaxel is a microtubule-stabilizing drug used for the treatment of several cancers, including prostate cancer. Resistance to docetaxel can either occur through intrinsic resistance or develop under therapeutic pressure, i.e., acquired resistance. A possible explanation for the occurrence of acquired resistance to docetaxel is increased drug efflux via P-glycoprotein (P-gp) drug transporters. Methods: We have generated docetaxel-resistant cell lines DU-145DOC10 and 22Rv1DOC8 by exposing parental cell lines DU-145DOC and 22Rv1 to increasing levels of docetaxel. Gene expression levels between DU-145DOC10 and 22Rv1DOC8 were compared with those of their respective originator cell lines. Both parental and resistant cell lines were treated with the taxane drugs docetaxel and cabazitaxel in combination with the P-gp/CYP3A4 inhibitor ritonavir and the P-gp inhibitor elacridar. Results: In the docetaxel-resistant cell lines DU-145DOC10 and 22Rv1DOC8, the ABCB1 (P-gp) gene was highly up-regulated. Expression of the P-gp protein was also significantly increased in the docetaxel-resistant cell lines in a Western blotting assay. The addition of ritonavir to docetaxel resulted in a return of the sensitivity to docetaxel in the DU-145DOC10 and 22Rv1DOC8 to a level similar to the sensitivity in the originator cells. We found that these docetaxel-resistant cell lines could also be re-sensitized to cabazitaxel in a similar manner. In a Caco-2 P-gp transporter assay, functional inhibition of P-gp-mediated transport of docetaxel with ritonavir was demonstrated. Conclusion: Our results demonstrate that ritonavir restores sensitivity to both docetaxel and cabazitaxel in docetaxel-resistant cell lines, most likely by inhibiting P-gp-mediated drug efflux.
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Affiliation(s)
| | | | - Jos H. Beijnen
- Department of Pharmacy & Pharmacology, Netherlands Cancer Institute - Antoni van Leeuwenhoek, Amsterdam 1066 CX, the Netherlands
| | - Gábor Imre
- SOLVO Biotechnology, Budapest H-1117, Hungary
| | - Colin R. Freund
- Modra Pharmaceuticals B.V., Amsterdam 1083 HN, the Netherlands
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Ruiz de Porras V, Bernat-Peguera A, Alcon C, Laguia F, Fernández-Saorin M, Jiménez N, Senan-Salinas A, Solé-Blanch C, Feu A, Marín-Aguilera M, Pardo JC, Ochoa-de-Olza M, Montero J, Mellado B, Font A. Dual inhibition of MEK and PI3Kβ/δ-a potential therapeutic strategy in PTEN-wild-type docetaxel-resistant metastatic prostate cancer. Front Pharmacol 2024; 15:1331648. [PMID: 38318136 PMCID: PMC10838968 DOI: 10.3389/fphar.2024.1331648] [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: 11/01/2023] [Accepted: 01/08/2024] [Indexed: 02/07/2024] Open
Abstract
Background: Docetaxel remains the standard treatment for metastatic castration-resistant prostate cancer (mCRPC). However, resistance frequently emerges as a result of hyperactivation of the PI3K/AKT and the MEK/ERK pathways. Therefore, the inhibition of these pathways presents a potential therapeutic approach. In this study, we evaluated the efficacy of simultaneous inhibition of the PI3K/AKT and MEK/ERK pathways in docetaxel-resistant mCRPC, both in vitro and in vivo. Methods: Docetaxel-sensitive and docetaxel-resistant mCRPC cells were treated with selumetinib (MEK1/2 inhibitor), AZD8186 (PI3Kβ/δ inhibitor) and capivasertib (pan-AKT inhibitor) alone and in combination. Efficacy and toxicity of selumetinib+AZD8186 were tested in docetaxel-resistant xenograft mice. CRISPR-Cas9 generated a PTEN-knockdown docetaxel-resistant cell model. Changes in phosphorylation of AKT, ERK and downstream targets were analyzed by Western blot. Antiapoptotic adaptations after treatments were detected by dynamic BH3 profiling. Results: PI3K/AKT and MEK/ERK pathways were hyperactivated in PTEN-wild-type (wt) docetaxel-resistant cells. Selumetinib+AZD8186 decreased cell proliferation and increased apoptosis in PTEN-wt docetaxel-resistant cells. This observation was further confirmed in vivo, where docetaxel-resistant xenograft mice treated with selumetinib+AZD8186 exhibited reduced tumor growth without additional toxicity. Conclusion: Our findings on the activity of selumetinib+AZD8186 in PTEN-wt cells and in docetaxel-resistant xenograft mice provide an excellent rationale for a novel therapeutic strategy for PTEN-wt mCRPC patients resistant to docetaxel, in whom, unlike PTEN-loss patients, a clinical benefit of treatment with single-agent PI3K and AKT inhibitors has not been demonstrated. A phase I-II trial of this promising combination is warranted.
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Affiliation(s)
- Vicenç Ruiz de Porras
- CARE Program, Germans Trias i Pujol Research Institute (IGTP), Badalona, Barcelona, Spain
- Catalan Institute of Oncology, Badalona Applied Research Group in Oncology (B·ARGO), Badalona, Barcelona, Spain
- GRET and Toxicology Unit, Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain
| | - Adrià Bernat-Peguera
- CARE Program, Germans Trias i Pujol Research Institute (IGTP), Badalona, Barcelona, Spain
- Catalan Institute of Oncology, Badalona Applied Research Group in Oncology (B·ARGO), Badalona, Barcelona, Spain
| | - Clara Alcon
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universitat de Barcelona, Barcelona, Spain
| | - Fernando Laguia
- IrsiCaixa AIDS Research Institute, Hospital Germans Trias i Pujol, Badalona, Barcelona, Spain
| | - Maria Fernández-Saorin
- CARE Program, Germans Trias i Pujol Research Institute (IGTP), Badalona, Barcelona, Spain
- Catalan Institute of Oncology, Badalona Applied Research Group in Oncology (B·ARGO), Badalona, Barcelona, Spain
| | - Natalia Jiménez
- Translational Genomics and Targeted Therapeutics in Solid Tumors Lab, Fundació de Recerca Clínic Barcelona–Institut d’Investigacions Biomèdiques August Pi i Sunyer (FRCB-IDIBAPS), Barcelona, Spain
| | - Ana Senan-Salinas
- CARE Program, Germans Trias i Pujol Research Institute (IGTP), Badalona, Barcelona, Spain
- Catalan Institute of Oncology, Badalona Applied Research Group in Oncology (B·ARGO), Badalona, Barcelona, Spain
| | - Carme Solé-Blanch
- CARE Program, Germans Trias i Pujol Research Institute (IGTP), Badalona, Barcelona, Spain
- Catalan Institute of Oncology, Badalona Applied Research Group in Oncology (B·ARGO), Badalona, Barcelona, Spain
| | - Andrea Feu
- Department of Pathology, Germans Trias i Pujol University Hospital, Badalona, Barcelona, Spain
| | - Mercedes Marín-Aguilera
- Translational Genomics and Targeted Therapeutics in Solid Tumors Lab, Fundació de Recerca Clínic Barcelona–Institut d’Investigacions Biomèdiques August Pi i Sunyer (FRCB-IDIBAPS), Barcelona, Spain
| | - Juan Carlos Pardo
- CARE Program, Germans Trias i Pujol Research Institute (IGTP), Badalona, Barcelona, Spain
- Catalan Institute of Oncology, Badalona Applied Research Group in Oncology (B·ARGO), Badalona, Barcelona, Spain
- Medical Oncology Department, Catalan Institute of Oncology, Badalona, Barcelona, Spain
| | - Maria Ochoa-de-Olza
- CARE Program, Germans Trias i Pujol Research Institute (IGTP), Badalona, Barcelona, Spain
- Catalan Institute of Oncology, Badalona Applied Research Group in Oncology (B·ARGO), Badalona, Barcelona, Spain
- Medical Oncology Department, Catalan Institute of Oncology, Badalona, Barcelona, Spain
| | - Joan Montero
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universitat de Barcelona, Barcelona, Spain
| | - Begoña Mellado
- Translational Genomics and Targeted Therapeutics in Solid Tumors Lab, Fundació de Recerca Clínic Barcelona–Institut d’Investigacions Biomèdiques August Pi i Sunyer (FRCB-IDIBAPS), Barcelona, Spain
- Medical Oncology Department, Hospital Clinic de Barcelona, Barcelona, Spain
| | - Albert Font
- CARE Program, Germans Trias i Pujol Research Institute (IGTP), Badalona, Barcelona, Spain
- Catalan Institute of Oncology, Badalona Applied Research Group in Oncology (B·ARGO), Badalona, Barcelona, Spain
- Medical Oncology Department, Catalan Institute of Oncology, Badalona, Barcelona, Spain
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Wan L, Liu Y, Liu R, Mao W. GAD1 contributes to the progression and drug resistance in castration resistant prostate cancer. Cancer Cell Int 2023; 23:255. [PMID: 37904122 PMCID: PMC10617133 DOI: 10.1186/s12935-023-03093-4] [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: 02/06/2023] [Accepted: 10/06/2023] [Indexed: 11/01/2023] Open
Abstract
BACKGROUND Prostate cancer is currently the second most lethal malignancy in men worldwide due to metastasis and invasion in advanced stages. Studies have revealed that androgen deprivation therapy can induce stable remission in patients with advanced prostate cancer, although most patients will develop castration-resistant prostate cancer (CRPC) in 1-2 years. Docetaxel and enzalutamide improve survival in patients with CRPC, although only for a short time, eventually patients develop primary or secondary resistance, causing disease progression or biochemical relapse. METHODS The gene expression profiles of docetaxel-sensitive or -resistant prostate cancer cell lines, namely GSE33455, GSE36135, GSE78201, GSE104935, and GSE143408, were sequentially analyzed for differentially expressed genes and progress-free interval significance. Subsequently, the overall survival significance and clinic-pathological features were analyzed by the R package. The implications of hub genes mutations, methylation in prostate cancer and the relationship with the tumor immune cell infiltration microenvironment were assessed with the help of cBioPortal, UALCAN and TISIDB web resources. Finally, effects of the hub genes on the progression and drug resistance in prostate cancer were explored using reverse transcription-polymerase chain reaction (RT-PCR), immunohistochemistry, cell phenotype, and drug sensitivity. RESULT Glutamate decarboxylase 1 (GAD1) was tentatively identified by bioinformatic analysis as an hub gene for the development of drug resistance, including docetaxel and enzalutamide, in prostate cancer. Additionally, GAD1 expression, mutation and methylation were significantly correlated with the clinicopathological features and the tumor immune microenvironment. RT-PCR, immunohistochemistry, cell phenotype and drug sensitivity experiments further demonstrated that GAD1 promoted prostate cancer progression and decreased the therapeutic effect of docetaxel or enzalutamide. CONCLUSION This research confirmed that GAD1 was a hub gene in the progression and development of drug resistance in prostate cancer. This helped to explain prostate cancer drug resistance and provides new immune-related therapeutic targets and biomarkers for it.
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Affiliation(s)
- Lilin Wan
- Department of Urology, People's Hospital of Putuo District, Shanghai, 200000, China
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, 87 Dingjia Bridge Hunan Road, Nanjing, 210009, China
- Southeast University, 87 Dingjia Bridge Hunan Road, Nanjing, 210009, China
| | - Yifan Liu
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, 87 Dingjia Bridge Hunan Road, Nanjing, 210009, China
- Southeast University, 87 Dingjia Bridge Hunan Road, Nanjing, 210009, China
| | - Ruiji Liu
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, 87 Dingjia Bridge Hunan Road, Nanjing, 210009, China.
- Department of Urology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.
| | - Weipu Mao
- Department of Urology, People's Hospital of Putuo District, Shanghai, 200000, China.
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, 87 Dingjia Bridge Hunan Road, Nanjing, 210009, China.
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Koushyar S, Uysal-Onganer P, Jiang WG, Dart DA. Prohibitin Links Cell Cycle, Motility and Invasion in Prostate Cancer Cells. Int J Mol Sci 2023; 24:9919. [PMID: 37373067 PMCID: PMC10298516 DOI: 10.3390/ijms24129919] [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: 01/19/2023] [Revised: 05/22/2023] [Accepted: 06/01/2023] [Indexed: 06/29/2023] Open
Abstract
Prohibitin (PHB) is a tumour suppressor gene with several different molecular activities. PHB overexpression leads to G1/S-phase cell cycle arrest, and PHB represses the androgen receptor (AR) in prostate cancer cells. PHB interacts with and represses members of the E2F family in a manner that may also be AR-linked, therefore making the AR:PHB:E2F interaction axis highly complex. PHB siRNA increased the growth and metastatic potential of LNCaP mouse xenografts in vivo. Conversely, PHB ectopic cDNA overexpression affected several hundred genes in LNCaP cells. Furthermore, gene ontology analysis showed that in addition to cell cycle regulation, several members of the WNT family were significantly downregulated (WNT7B, WNT9A and WNT10B), as well as pathways for cell adhesion. Online GEO data studies showed PHB expression to be decreased in clinical cases of metastatic prostate cancer, and to be correlated with higher WNT expression in metastasis. PHB overexpression reduced prostate cancer cell migration and motility in wound-healing assays, reduced cell invasion through a Matrigel layer and reduced cellular attachment. In LNCaP cells, WNT7B, WNT9A and WNT10B expression were also upregulated by androgen treatment and downregulated by androgen antagonism, indicating a role for AR in the control of these WNT genes. However, these WNTs were strongly cell cycle regulated. E2F1 cDNA ectopic expression and PHB siRNA (both cell cycle promoting effects) increased WNT7B, WNT9A and WNT10B expression, and these genes were also upregulated as cells were released from G1 to S phase synchronisation, indicating further cell cycle regulation. Therefore, the repressive effects of PHB may inhibit AR, E2F and WNT expression and its loss may increase metastatic potential in human prostate cancer.
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Affiliation(s)
- Sarah Koushyar
- Cardiff China Medical Research Collaborative, School of Medicine, Cardiff University, Cardiff CF14 4YS, UK
| | - Pinar Uysal-Onganer
- Cancer Mechanisms and Biomarkers Research Group, School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK
| | - Wen Guo Jiang
- Cardiff China Medical Research Collaborative, School of Medicine, Cardiff University, Cardiff CF14 4YS, UK
| | - Dafydd Alwyn Dart
- Cardiff China Medical Research Collaborative, School of Medicine, Cardiff University, Cardiff CF14 4YS, UK
- Institute of Medical and Biomedical Education, St George’s University of London, Cranmer Terrace, Tooting, London SW17 0RE, UK
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8
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Ye X, Huang X, Fu X, Zhang X, Lin R, Zhang W, Zhang J, Lu Y. Myeloid-like tumor hybrid cells in bone marrow promote progression of prostate cancer bone metastasis. J Hematol Oncol 2023; 16:46. [PMID: 37138326 PMCID: PMC10155318 DOI: 10.1186/s13045-023-01442-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 04/19/2023] [Indexed: 05/05/2023] Open
Abstract
BACKGROUND Bone metastasis is the leading cause of death in patients with prostate cancer (PCa) and currently has no effective treatment. Disseminated tumor cells in bone marrow often obtain new characteristics to cause therapy resistance and tumor recurrence. Thus, understanding the status of disseminated prostate cancer cells in bone marrow is crucial for developing a new treatment. METHODS We analyzed the transcriptome of disseminated tumor cells from a single cell RNA-sequencing data of PCa bone metastases. We built a bone metastasis model through caudal artery injection of tumor cells, and sorted the tumor hybrid cells by flow cytometry. We performed multi-omics analysis, including transcriptomic, proteomic and phosphoproteomic analysis, to compare the difference between the tumor hybrid cells and parental cells. In vivo experiments were performed to analyze the tumor growth rate, metastatic and tumorigenic potential, drug and radiation sensitivity in hybrid cells. Single cell RNA-sequencing and CyTOF were performed to analyze the impact of hybrid cells on tumor microenvironment. RESULTS Here, we identified a unique cluster of cancer cells in PCa bone metastases, which expressed myeloid cell markers and showed a significant change in pathways related to immune regulation and tumor progression. We found that cell fusion between disseminated tumor cells and bone marrow cells can be source of these myeloid-like tumor cells. Multi-omics showed the pathways related to cell adhesion and proliferation, such as focal adhesion, tight junction, DNA replication, and cell cycle, were most significantly changed in these hybrid cells. In vivo experiment showed hybrid cells had a significantly increased proliferative rate, and metastatic potential. Single cell RNA-sequencing and CyTOF showed tumor-associated neutrophils/monocytes/macrophages were highly enriched in hybrid cells-induced tumor microenvironment with a higher immunosuppressive capacity. Otherwise, the hybrid cells showed an enhanced EMT phenotype with higher tumorigenicity, and were resistant to docetaxel and ferroptosis, but sensitive to radiotherapy. CONCLUSION Taken together, our data demonstrate that spontaneous cell fusion in bone marrow can generate myeloid-like tumor hybrid cells that promote the progression of bone metastasis, and these unique population of disseminated tumor cells can provide a potential therapeutic target for PCa bone metastasis.
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Affiliation(s)
- Xinyu Ye
- School of Medicine, Southern University of Science and Technology, No. 1088 Xue Yuan Blvd, Shenzhen, 518055, Guangdong, China
| | - Xin Huang
- School of Medicine, Southern University of Science and Technology, No. 1088 Xue Yuan Blvd, Shenzhen, 518055, Guangdong, China
| | - Xing Fu
- School of Medicine, Southern University of Science and Technology, No. 1088 Xue Yuan Blvd, Shenzhen, 518055, Guangdong, China
| | - Xiao Zhang
- School of Medicine, Southern University of Science and Technology, No. 1088 Xue Yuan Blvd, Shenzhen, 518055, Guangdong, China
| | - Risheng Lin
- School of Medicine, Southern University of Science and Technology, No. 1088 Xue Yuan Blvd, Shenzhen, 518055, Guangdong, China
| | - Wen Zhang
- School of Medicine, Southern University of Science and Technology, No. 1088 Xue Yuan Blvd, Shenzhen, 518055, Guangdong, China
| | - Jian Zhang
- School of Medicine, Southern University of Science and Technology, No. 1088 Xue Yuan Blvd, Shenzhen, 518055, Guangdong, China.
| | - Yi Lu
- School of Medicine, Southern University of Science and Technology, No. 1088 Xue Yuan Blvd, Shenzhen, 518055, Guangdong, China.
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Omoboyede V, Ibrahim O, Umar HI, Oke GA, Onile OS, Chukwuemeka PO. Computer-aided analysis of quercetin mechanism of overcoming docetaxel resistance in docetaxel-resistant prostate cancer. J Genet Eng Biotechnol 2023; 21:47. [PMID: 37099169 PMCID: PMC10133427 DOI: 10.1186/s43141-023-00498-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 04/20/2023] [Indexed: 04/27/2023]
Abstract
BACKGROUND Prostate cancer (PC) is a silent but potent killer among men. In 2018, PC accounted for more than 350, 000 death cases while more than 1.2 million cases were diagnosed. Docetaxel, a chemotherapeutic drug belonging to the taxane family of drugs, is one of the most potent drugs in combating advanced PC. However, PC cells often evolve resistance against the regimen. Hence, necessitating the search for complementary and alternative therapies. Quercetin, a ubiquitous phytocompound with numerous pharmacological properties, has been reported to reverse docetaxel resistance (DR) in docetaxel-resistant prostate cancer (DRPC). Therefore, this study aimed to explore the mechanism via which quercetin reverses DR in DRPC using an integrative functional network and exploratory cancer genomic data analyses. RESULTS The putative targets of quercetin were retrieved from relevant databases, while the differentially expressed genes (DEGs) in docetaxel-resistant prostate cancer (DRPC) were identified by analysing microarray data retrieved from the Gene Expression Omnibus (GEO) database. Subsequently, the protein-protein interaction (PPI) network of the overlapping genes between the DEGs and quercetin targets was retrieved from STRING, while the hub genes, which represent the key interacting genes of the network, were identified using the CytoHubba plug-in of Cytoscape. The hub genes were further subjected to a comprehensive analysis aimed at identifying their contribution to the immune microenvironment and overall survival (OS) of PC patients, while their alterations in PC patients were also revealed. The biological roles played by the hub genes in chemotherapeutic resistance include the positive regulation of developmental process, positive regulation of gene expression, negative regulation of cell death, and epithelial cell differentiation among others. CONCLUSION Further analysis revealed epidermal growth factor receptor (EGFR) as the most pertinent target of quercetin in reversing DR in DRPC, while molecular docking simulation revealed an effective interaction between quercetin and EGFR. Ultimately, this study provides a scientific rationale for the further exploration of quercetin as a combinational therapy with docetaxel.
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Affiliation(s)
- Victor Omoboyede
- Department of Biochemistry, School of Life Sciences (SLS), Federal University of Technology Akure, Akure, P.M.B 704, Nigeria.
- Computer-Aided Therapeutics Laboratory (CATL), School of Life Sciences (SLS), Federal University of Technology Akure, Akure, P.M.B 704, Nigeria.
- Computer Aided Therapeutics Discovery and Design (CATDD) Group, School of Life Sciences (SLS), Federal University of Technology Akure, Akure, P.M.B 704, Nigeria.
| | - Ochapa Ibrahim
- Computer-Aided Therapeutics Laboratory (CATL), School of Life Sciences (SLS), Federal University of Technology Akure, Akure, P.M.B 704, Nigeria
- Computer Aided Therapeutics Discovery and Design (CATDD) Group, School of Life Sciences (SLS), Federal University of Technology Akure, Akure, P.M.B 704, Nigeria
- Department of Food Science and Technology, School of Agriculture and Agricultural Technology (SAAT), Federal University of Technology Akure, Akure, P.M.B 704, Nigeria
| | - Haruna Isiyaku Umar
- Department of Biochemistry, School of Life Sciences (SLS), Federal University of Technology Akure, Akure, P.M.B 704, Nigeria
- Computer Aided Therapeutics Discovery and Design (CATDD) Group, School of Life Sciences (SLS), Federal University of Technology Akure, Akure, P.M.B 704, Nigeria
| | - Grace Ayomide Oke
- Department of Food Science and Technology, School of Agriculture and Agricultural Technology (SAAT), Federal University of Technology Akure, Akure, P.M.B 704, Nigeria
| | - Olugbenga Samson Onile
- Biotechnology Programme, Department of Biological Sciences, Elizade University, P.M.B, 002 Ilara-Mokin, Ilara-Mokin, 340271, Nigeria
| | - Prosper Obed Chukwuemeka
- Computer-Aided Therapeutics Laboratory (CATL), School of Life Sciences (SLS), Federal University of Technology Akure, Akure, P.M.B 704, Nigeria
- Computer Aided Therapeutics Discovery and Design (CATDD) Group, School of Life Sciences (SLS), Federal University of Technology Akure, Akure, P.M.B 704, Nigeria
- Department of Biotechnology, School of Life Sciences (SLS), Federal University of Technology Akure, Akure, P.M.B 704, Nigeria
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10
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Davies CR, Guo T, Burke E, Stankiewicz E, Xu L, Mao X, Scandura G, Rajan P, Tipples K, Alifrangis C, Wimalasingham AG, Galazi M, Crusz S, Powles T, Grey A, Oliver T, Kudahetti S, Shaw G, Berney D, Shamash J, Lu YJ. The potential of using circulating tumour cells and their gene expression to predict docetaxel response in metastatic prostate cancer. Front Oncol 2023; 12:1060864. [PMID: 36727071 PMCID: PMC9885040 DOI: 10.3389/fonc.2022.1060864] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 12/14/2022] [Indexed: 01/18/2023] Open
Abstract
Background Docetaxel improves overall survival (OS) in castration-resistant prostate cancer (PCa) (CRPC) and metastatic hormone-sensitive PCa (mHSPC). However, not all patients respond due to inherent and/or acquired resistance. There remains an unmet clinical need for a robust predictive test to stratify patients for treatment. Liquid biopsy of circulating tumour cell (CTCs) is minimally invasive, can provide real-time information of the heterogeneous tumour and therefore may be a potentially ideal docetaxel response prediction biomarker. Objective In this study we investigate the potential of using CTCs and their gene expression to predict post-docetaxel tumour response, OS and progression free survival (PFS). Methods Peripheral blood was sampled from 18 mCRPC and 43 mHSPC patients, pre-docetaxel treatment, for CTC investigation. CTCs were isolated using the epitope independent Parsortix® system and gene expression was determined by multiplex RT-qPCR. We evaluated CTC measurements for post-docetaxel outcome prediction using receiver operating characteristics and Kaplan Meier analysis. Results Detection of CTCs pre-docetaxel was associated with poor patient outcome post-docetaxel treatment. Combining total-CTC number with PSA and ALP predicted lack of partial response (PR) with an AUC of 0.90, p= 0.037 in mCRPC. A significantly shorter median OS was seen in mCRPC patients with positive CTC-score (12.80 vs. 37.33 months, HR= 5.08, p= 0.0005), ≥3 total-CTCs/7.5mL (12.80 vs. 37.33 months, HR= 3.84, p= 0.0053), ≥1 epithelial-CTCs/7.5mL (14.30 vs. 37.33 months, HR= 3.89, p= 0.0041) or epithelial to mesenchymal transitioning (EMTing)-CTCs/7.5mL (11.32 vs. 32.37 months, HR= 6.73, p= 0.0001). Significantly shorter PFS was observed in patients with ≥2 epithelial-CTCs/7.5mL (7.52 vs. 18.83 months, HR= 3.93, p= 0.0058). mHSPC patients with ≥5 CTCs/7.5mL had significantly shorter median OS (24.57 vs undefined months, HR= 4.14, p= 0.0097). In mHSPC patients, expression of KLK2, KLK4, ADAMTS1, ZEB1 and SNAI1 was significantly associated with shorter OS and/or PFS. Importantly, combining CTC measurements with clinical biomarkers increased sensitivity and specificity for prediction of patient outcome. Conclusion While it is clear that CTC numbers and gene expression were prognostic for PCa post-docetaxel treatment, and CTC subtype analysis may have additional value, their potential predictive value for docetaxel chemotherapy response needs to be further investigated in large patient cohorts.
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Affiliation(s)
- Caitlin R. Davies
- Centre for Cancer Biomarkers and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Tianyu Guo
- Centre for Cancer Biomarkers and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom,Department of Cell Biology and the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Edwina Burke
- Centre for Cancer Biomarkers and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Elzbieta Stankiewicz
- Centre for Cancer Biomarkers and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom,Central Biobank, Medical University of Gdansk, Gdansk, Poland
| | - Lei Xu
- Centre for Cancer Biomarkers and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom,Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xueying Mao
- Centre for Cancer Biomarkers and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Glenda Scandura
- Centre for Cancer Biomarkers and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Prabhakar Rajan
- Centre for Cancer Cell and Molecular Biology, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom,Department of Urology, Barts Health National Health Service Trust (NHS), London, United Kingdom,Division of Surgery and Interventional Sciences, University College London, London, United Kingdom,University College London Hospitals, National Health Service (NHS) Foundation Trust, London, United Kingdom
| | - Karen Tipples
- Department of Urology, Barts Health National Health Service Trust (NHS), London, United Kingdom
| | - Constantine Alifrangis
- University College London Hospitals, National Health Service (NHS) Foundation Trust, London, United Kingdom,Department of Medical Oncology, Barts Health National Health Service (NHS) Trust, London, United Kingdom
| | | | - Myria Galazi
- Department of Medical Oncology, Barts Health National Health Service (NHS) Trust, London, United Kingdom
| | - Shanthini Crusz
- Department of Medical Oncology, Barts Health National Health Service (NHS) Trust, London, United Kingdom
| | - Thomas Powles
- Department of Urology, Barts Health National Health Service Trust (NHS), London, United Kingdom,Centre for Experimental Cancer Medicine, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Alistair Grey
- Department of Urology, Barts Health National Health Service Trust (NHS), London, United Kingdom,Division of Surgery and Interventional Sciences, University College London, London, United Kingdom,University College London Hospitals, National Health Service (NHS) Foundation Trust, London, United Kingdom
| | - Tim Oliver
- Centre for Cancer Biomarkers and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Sakunthala Kudahetti
- Centre for Cancer Biomarkers and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Greg Shaw
- Department of Urology, Barts Health National Health Service Trust (NHS), London, United Kingdom,Division of Surgery and Interventional Sciences, University College London, London, United Kingdom,University College London Hospitals, National Health Service (NHS) Foundation Trust, London, United Kingdom
| | - Daniel Berney
- Centre for Cancer Biomarkers and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Jonathan Shamash
- Department of Medical Oncology, Barts Health National Health Service (NHS) Trust, London, United Kingdom
| | - Yong-Jie Lu
- Centre for Cancer Biomarkers and Biotherapeutics, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom,*Correspondence: Yong-Jie Lu,
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11
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Bioinformatics approach to identify the core ontologies, pathways, signature genes and drug molecules of prostate cancer. INFORMATICS IN MEDICINE UNLOCKED 2023. [DOI: 10.1016/j.imu.2023.101179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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12
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Jiménez N, Reig Ò, Marín-Aguilera M, Aversa C, Ferrer-Mileo L, Font A, Rodriguez-Vida A, Climent MÁ, Cros S, Chirivella I, Domenech M, Figols M, González-Billalabeitia E, Jiménez Peralta D, Rodríguez-Carunchio L, García-Esteve S, Garcia de Herreros M, Ribal MJ, Prat A, Mellado B. Transcriptional Profile Associated with Clinical Outcomes in Metastatic Hormone-Sensitive Prostate Cancer Treated with Androgen Deprivation and Docetaxel. Cancers (Basel) 2022; 14:cancers14194757. [PMID: 36230681 PMCID: PMC9564355 DOI: 10.3390/cancers14194757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/21/2022] [Accepted: 09/26/2022] [Indexed: 12/09/2022] Open
Abstract
(1) Background: Androgen deprivation therapy (ADT) and docetaxel (DX) combination is a standard therapy for metastatic hormone-sensitive prostate cancer (mHSPC) patients. (2) Methods: We investigate if tumor transcriptomic analysis predicts mHSPC evolution in a multicenter retrospective biomarker study. A customized panel of 184 genes was tested in mRNA from tumor samples by the nCounter platform in 125 mHSPC patients treated with ADT+DX. Gene expression was correlated with castration-resistant prostate cancer-free survival (CRPC-FS) and overall survival (OS). (3) Results: High expression of androgen receptor (AR) signature was independently associated with longer CRPC-FS (hazard ratio (HR) 0.6, 95% confidence interval (CI) 0.3–0.9; p = 0.015), high expression of estrogen receptor (ESR) signature with longer CRPC-FS (HR 0.6, 95% CI 0.4–0.9; p = 0.019) and OS (HR 0.5, 95% CI 0.2–0.9, p = 0.024), and lower expression of tumor suppressor genes (TSG) (RB1, PTEN and TP53) with shorter OS (HR 2, 95% CI 1–3.8; p = 0.044). ARV7 expression was independently associated with shorter CRPC-FS (HR 1.5, 95% CI 1.1–2.1, p = 0.008) and OS (HR 1.8, 95% CI 1.2–2.6, p = 0.004), high ESR2 was associated with longer OS (HR 0.5, 95% CI 0.2–1, p = 0.048) and low expression of RB1 was independently associated with shorter OS (HR 1.9, 95% CI 1.1–3.2, p = 0.014). (4) Conclusions: AR, ESR, and TSG expression signatures, as well as ARV7, RB1, and ESR2 expression, have a prognostic value in mHSPC patients treated with ADT+DX.
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Affiliation(s)
- Natalia Jiménez
- Translational Genomics and Targeted Therapeutics in Solid Tumors Lab, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
- Fundació Clínic per a la Recerca Biomèdica, 08036 Barcelona, Spain
| | - Òscar Reig
- Translational Genomics and Targeted Therapeutics in Solid Tumors Lab, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
- Fundació Clínic per a la Recerca Biomèdica, 08036 Barcelona, Spain
- Medical Oncology Department, Hospital Clínic, 08036 Barcelona, Spain
- Uro-Oncology Unit, Hospital Clínic, University of Barcelona, 08036 Barcelona, Spain
- Department of Medicine, University of Barcelona, 08036 Barcelona, Spain
| | - Mercedes Marín-Aguilera
- Translational Genomics and Targeted Therapeutics in Solid Tumors Lab, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
- Fundació Clínic per a la Recerca Biomèdica, 08036 Barcelona, Spain
| | - Caterina Aversa
- Translational Genomics and Targeted Therapeutics in Solid Tumors Lab, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
- Fundació Clínic per a la Recerca Biomèdica, 08036 Barcelona, Spain
- Medical Oncology Department, Hospital Clínic, 08036 Barcelona, Spain
- Uro-Oncology Unit, Hospital Clínic, University of Barcelona, 08036 Barcelona, Spain
| | - Laura Ferrer-Mileo
- Translational Genomics and Targeted Therapeutics in Solid Tumors Lab, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
- Fundació Clínic per a la Recerca Biomèdica, 08036 Barcelona, Spain
- Medical Oncology Department, Hospital Clínic, 08036 Barcelona, Spain
- Uro-Oncology Unit, Hospital Clínic, University of Barcelona, 08036 Barcelona, Spain
| | - Albert Font
- Medical Oncology Department, Institut Català d’Oncologia, Hospital Germans Trias i Pujol, 08916 Badalona, Spain
| | - Alejo Rodriguez-Vida
- Medical Oncology Department, Institut Hospital del Mar d’Investigacions Mèdiques (IMIM), Hospital del Mar, 08003 Barcelona, Spain
| | - Miguel Ángel Climent
- Medical Oncology Service, Instituto Valenciano de Oncología (IVO), 46009 Valencia, Spain
| | - Sara Cros
- Medical Oncology Department, Hospital General de Granollers, 08402 Granollers, Spain
| | - Isabel Chirivella
- Oncology Department, Hospital Clínico Universitario de Valencia, 46010 Valencia, Spain
| | | | - Mariona Figols
- Medical Oncology Department, Fundació Althaia Manresa, 08243 Manresa, Spain
| | | | - Daniel Jiménez Peralta
- Urology Department, Hospital General Universitario José M. Morales Meseguer, 30008 Murcia, Spain
| | - Leonardo Rodríguez-Carunchio
- Uro-Oncology Unit, Hospital Clínic, University of Barcelona, 08036 Barcelona, Spain
- Department of Pathology, Hospital Clínic, 08036 Barcelona, Spain
| | - Samuel García-Esteve
- Translational Genomics and Targeted Therapeutics in Solid Tumors Lab, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
- Fundació Clínic per a la Recerca Biomèdica, 08036 Barcelona, Spain
- Department of Medicine, University of Barcelona, 08036 Barcelona, Spain
| | - Marta Garcia de Herreros
- Medical Oncology Department, Hospital Clínic, 08036 Barcelona, Spain
- Uro-Oncology Unit, Hospital Clínic, University of Barcelona, 08036 Barcelona, Spain
| | - Maria J. Ribal
- Uro-Oncology Unit, Hospital Clínic, University of Barcelona, 08036 Barcelona, Spain
| | - Aleix Prat
- Translational Genomics and Targeted Therapeutics in Solid Tumors Lab, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
- Fundació Clínic per a la Recerca Biomèdica, 08036 Barcelona, Spain
- Medical Oncology Department, Hospital Clínic, 08036 Barcelona, Spain
- Department of Medicine, University of Barcelona, 08036 Barcelona, Spain
| | - Begoña Mellado
- Translational Genomics and Targeted Therapeutics in Solid Tumors Lab, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
- Fundació Clínic per a la Recerca Biomèdica, 08036 Barcelona, Spain
- Medical Oncology Department, Hospital Clínic, 08036 Barcelona, Spain
- Uro-Oncology Unit, Hospital Clínic, University of Barcelona, 08036 Barcelona, Spain
- Department of Medicine, University of Barcelona, 08036 Barcelona, Spain
- Correspondence:
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13
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McAleese CE, Butcher NJ, Minchin RF. Arylamine N-acetyltransferase 1 deficiency inhibits drug-induced cell death in breast cancer cells: switch from cytochrome C-dependent apoptosis to necroptosis. Breast Cancer Res Treat 2022; 195:223-236. [PMID: 35918499 PMCID: PMC9464750 DOI: 10.1007/s10549-022-06668-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 06/30/2022] [Indexed: 11/25/2022]
Abstract
Purpose Arylamine N-acetyltransferase 1 (NAT1) deficiency has been associated with drug resistance and poor outcomes in breast cancer patients. The current study aimed to investigate drug resistance in vitro using normal breast cancer cell lines and NAT1-deficient cell lines to understand the changes induced by the lack of NAT1 that resulted in poor drug response. Methods The response to seven chemotherapeutic agents was quantified following NAT1 deletion using CRISPR-Cas 9 in MDA-MB-231 and T-47D cells. Apoptosis was monitored by annexin V staining and caspase 3/7 activity. Cytochrome C release and caspase 8 and 9 activities were measured by Western blots. Caspase 8 was inhibited using Z-IETD-FMK and necroptosis was inhibited using necrostatin and necrosulfonamide. Results Compared to parental cells, NAT1 depleted cells were resistant to drug treatment. This could be reversed following NAT1 rescue of the NAT1 deleted cells. Release of cytochrome C in response to treatment was decreased in the NAT1 depleted cells, suggesting suppression of the intrinsic apoptotic pathway. In addition, NAT1 knockout resulted in a decrease in caspase 8 activation. Treatment with necrosulfonamide showed that NAT1 deficient cells switched from intrinsic apoptosis to necroptosis when treated with the anti-cancer drug cisplatin. Conclusions NAT1 deficiency can switch cell death from apoptosis to necroptosis resulting in decreased response to cytotoxic drugs. The absence of NAT1 in patient tumours may be a useful biomarker for selecting alternative treatments in a subset of breast cancer patients. Supplementary Information The online version contains supplementary material available at 10.1007/s10549-022-06668-3.
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Affiliation(s)
- Courtney E McAleese
- School of Biomedical Sciences, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Neville J Butcher
- School of Biomedical Sciences, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Rodney F Minchin
- School of Biomedical Sciences, The University of Queensland, Brisbane, QLD, 4072, Australia.
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14
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Naghsh-Nilchi A, Ebrahimi Ghahnavieh L, Dehghanian F. Construction of miRNA-lncRNA-mRNA co-expression network affecting EMT-mediated cisplatin resistance in ovarian cancer. J Cell Mol Med 2022; 26:4530-4547. [PMID: 35810383 PMCID: PMC9357632 DOI: 10.1111/jcmm.17477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 04/21/2022] [Accepted: 06/21/2022] [Indexed: 12/22/2022] Open
Abstract
Platinum resistance is one of the major concerns in ovarian cancer treatment. Recent evidence shows the critical role of epithelial-mesenchymal transition (EMT) in this resistance. Epithelial-like ovarian cancer cells show decreased sensitivity to cisplatin after cisplatin treatment. Our study prospected the association between epithelial phenotype and response to cisplatin in ovarian cancer. Microarray dataset GSE47856 was acquired from the GEO database. After identifying differentially expressed genes (DEGs) between epithelial-like and mesenchymal-like cells, the module identification analysis was performed using weighted gene co-expression network analysis (WGCNA). The gene ontology (GO) and pathway analyses of the most considerable modules were performed. The protein-protein interaction network was also constructed. The hub genes were specified using Cytoscape plugins MCODE and cytoHubba, followed by the survival analysis and data validation. Finally, the co-expression of miRNA-lncRNA-TF with the hub genes was reconstructed. The co-expression network analysis suggests 20 modules relating to the Epithelial phenotype. The antiquewhite4, brown and darkmagenta modules are the most significant non-preserved modules in the Epithelial phenotype and contain the most differentially expressed genes. GO, and KEGG pathway enrichment analyses on these modules divulge that these genes were primarily enriched in the focal adhesion, DNA replication pathways and stress response processes. ROC curve and overall survival rate analysis show that the co-expression pattern of the brown module's hub genes could be a potential prognostic biomarker for ovarian cancer cisplatin resistance.
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Affiliation(s)
- Amirhosein Naghsh-Nilchi
- Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Laleh Ebrahimi Ghahnavieh
- Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Fariba Dehghanian
- Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
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15
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Muresan XM, Slabáková E, Procházková J, Drápela S, Fedr R, Pícková M, Vacek O, Víchová R, Suchánková T, Bouchal J, Kürfürstová D, Král M, Hulínová T, Sýkora RP, Študent V, Hejret V, van Weerden WM, Puhr M, Pustka V, Potěšil D, Zdráhal Z, Culig Z, Souček K. Toll-Like Receptor 3 Overexpression Induces Invasion of Prostate Cancer Cells, whereas Its Activation Triggers Apoptosis. THE AMERICAN JOURNAL OF PATHOLOGY 2022; 192:1321-1335. [PMID: 35750257 DOI: 10.1016/j.ajpath.2022.05.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 04/29/2022] [Accepted: 05/17/2022] [Indexed: 01/27/2023]
Abstract
Toll-like receptor 3 (TLR3) is an endosomal receptor expressed in several immune and epithelial cells. Recent studies have highlighted its expression also in solid tumors, including prostate cancer (PCa), and described its role mainly in the proinflammatory response and induction of apoptosis. It has been found up-regulated in some castration-resistant prostate cancers. However, the role of TLR3 in prostate cancer progression remains largely unknown. We have experimentally demonstrated that exogenous TLR3 activation in PCa cell lines leads to the significant induction of secretion of the cytokines IL-6, IL-8, and interferon-β, depending on the model and chemoresistance status. Transcriptomic analysis of TLR3-overexpressing cells revealed a functional program that is enriched for genes involved in the regulation of cell motility, migration, and tumor invasiveness. Increased motility, migration, and invasion in TLR3-overexpressing cell line were confirmed by several in vitro assays and using an orthotopic prostate xenograft model in vivo. Furthermore, TLR3-ligand induced apoptosis via cleavage of caspase-3/7 and poly (ADP-ribose) polymerase, predominantly in TLR3-overexpressing cells. We conclude that TLR3 may be involved in prostate cancer progression and metastasis; however, it might also represent an Achilles heel of PCa, which can be exploited for targeted therapy.
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Affiliation(s)
- Ximena M Muresan
- Department of Cytokinetics, Institute of Biophysics of Czech Academy of Sciences, Brno, Czech Republic; International Clinical Research Center, St. Anne's University Hospital in Brno, Brno, Czech Republic
| | - Eva Slabáková
- Department of Cytokinetics, Institute of Biophysics of Czech Academy of Sciences, Brno, Czech Republic
| | - Jiřina Procházková
- Department of Cytokinetics, Institute of Biophysics of Czech Academy of Sciences, Brno, Czech Republic
| | - Stanislav Drápela
- Department of Cytokinetics, Institute of Biophysics of Czech Academy of Sciences, Brno, Czech Republic; International Clinical Research Center, St. Anne's University Hospital in Brno, Brno, Czech Republic; Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Radek Fedr
- Department of Cytokinetics, Institute of Biophysics of Czech Academy of Sciences, Brno, Czech Republic; International Clinical Research Center, St. Anne's University Hospital in Brno, Brno, Czech Republic
| | - Markéta Pícková
- Department of Cytokinetics, Institute of Biophysics of Czech Academy of Sciences, Brno, Czech Republic; International Clinical Research Center, St. Anne's University Hospital in Brno, Brno, Czech Republic; Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Ondřej Vacek
- Department of Cytokinetics, Institute of Biophysics of Czech Academy of Sciences, Brno, Czech Republic; International Clinical Research Center, St. Anne's University Hospital in Brno, Brno, Czech Republic; Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Ráchel Víchová
- Department of Cytokinetics, Institute of Biophysics of Czech Academy of Sciences, Brno, Czech Republic
| | - Tereza Suchánková
- Department of Cytokinetics, Institute of Biophysics of Czech Academy of Sciences, Brno, Czech Republic; International Clinical Research Center, St. Anne's University Hospital in Brno, Brno, Czech Republic
| | - Jan Bouchal
- Department of Clinical and Molecular Pathology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University, Olomouc, Czech Republic
| | | | - Milan Král
- Department of Urology, University Hospital, Olomouc, Czech Republic
| | - Tereza Hulínová
- Department of Clinical and Molecular Pathology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University, Olomouc, Czech Republic; Department of Clinical and Molecular Pathology, University Hospital, Ostrava, Czech Republic
| | - Radek P Sýkora
- Department of Urology, University Hospital, Ostrava, Czech Republic
| | - Vladimír Študent
- Department of Urology, University Hospital, Olomouc, Czech Republic
| | - Václav Hejret
- Bioinformatics Core Facility Central European Institute of Technology, Masaryk University, Brno, Czech Republic; National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Wytske M van Weerden
- Department of Urology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Martin Puhr
- Proteomics Core Facility Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Václav Pustka
- Department of Urology, Experimental Urology, Innsbruck Medical University, Innsbruck, Austria
| | - David Potěšil
- Department of Urology, Experimental Urology, Innsbruck Medical University, Innsbruck, Austria
| | - Zbyněk Zdráhal
- Department of Urology, Experimental Urology, Innsbruck Medical University, Innsbruck, Austria
| | - Zoran Culig
- International Clinical Research Center, St. Anne's University Hospital in Brno, Brno, Czech Republic; Proteomics Core Facility Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Karel Souček
- Department of Cytokinetics, Institute of Biophysics of Czech Academy of Sciences, Brno, Czech Republic; International Clinical Research Center, St. Anne's University Hospital in Brno, Brno, Czech Republic; Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic.
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16
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Whitburn J, Rao SR, Morris EV, Tabata S, Hirayama A, Soga T, Edwards JR, Kaya Z, Palmer C, Hamdy FC, Edwards CM. Metabolic profiling of prostate cancer in skeletal microenvironments identifies G6PD as a key mediator of growth and survival. SCIENCE ADVANCES 2022; 8:eabf9096. [PMID: 35213227 PMCID: PMC8880772 DOI: 10.1126/sciadv.abf9096] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The spread of cancer to bone is invariably fatal, with complex cross-talk between tumor cells and the bone microenvironment responsible for driving disease progression. By combining in silico analysis of patient datasets with metabolomic profiling of prostate cancer cells cultured with bone cells, we demonstrate the changing energy requirements of prostate cancer cells in the bone microenvironment, identifying the pentose phosphate pathway (PPP) as elevated in prostate cancer bone metastasis, with increased expression of the PPP rate-limiting enzyme glucose-6-phosphate dehydrogenase (G6PD) associated with a reduction in progression-free survival. Genetic and pharmacologic manipulation demonstrates that G6PD inhibition reduces prostate cancer growth and migration, associated with changes in cellular redox state and increased chemosensitivity. Genetic blockade of G6PD in vivo results in reduction of tumor growth within bone. In summary, we demonstrate the metabolic plasticity of prostate cancer cells in the bone microenvironment, identifying the PPP and G6PD as metabolic targets for the treatment of prostate cancer bone metastasis.
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Affiliation(s)
- Jessica Whitburn
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Srinivasa R. Rao
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Emma V. Morris
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Sho Tabata
- Institute for Advanced Biosciences, Keio University, Yamagata, Japan
| | - Akiyoshi Hirayama
- Institute for Advanced Biosciences, Keio University, Yamagata, Japan
| | - Tomoyoshi Soga
- Institute for Advanced Biosciences, Keio University, Yamagata, Japan
| | - James R. Edwards
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Zeynep Kaya
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Charlotte Palmer
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Freddie C. Hamdy
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Claire M. Edwards
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
- Corresponding author.
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17
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Fu YK, Wang BJ, Tseng JC, Huang SH, Lin CY, Kuo YY, Hour TC, Chuu CP. Combination treatment of docetaxel with caffeic acid phenethyl ester suppresses the survival and the proliferation of docetaxel-resistant prostate cancer cells via induction of apoptosis and metabolism interference. J Biomed Sci 2022; 29:16. [PMID: 35197069 PMCID: PMC8864857 DOI: 10.1186/s12929-022-00797-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 02/12/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Docetaxel has been approved by USFDA as a first-line treatment for castration-resistant prostate cancer (CRPC) patients. Patients receiving androgen deprivation therapy along with docetaxel result in superior survival, lower serum prostate specific antigen (PSA) level, and better quality of life. However, a significant proportion of these patients ultimately develop resistance to docetaxel within months. Caffeic acid phenethyl ester (CAPE), one of the main bioactive components extracted from the propolis, has been reported to be effective for repressing the tumor growth, the migration and invasion of prostate cancer (PCa) cells, as well as the downstream signaling and stability of androgen receptor (AR). We hence determined if combination treatment of docetaxel with CAPE can suppress the proliferation and the survival of docetaxel-resistant PCa cells. METHODS We established docetaxel-resistant PC/DX25 and DU/DX50 CRPC cell lines from PC-3 and DU-145 human PCa cells, respectively. Proliferation assay, MTT assay, flow cytometry with Annexin V staining, Comet Assay, and nude mice xenograft model were applied to determine the effects of combination treatment on cell proliferation and survival of the docetaxel-resistant PCa cells. Micro-Western Array (MWA) and qRT-PCR were used to investigate the molecular mechanism lying underneath. RESULTS Combination treatment effectively suppressed the proliferation, survival and tumor growth of docetaxel-resistant PCa cells both in vitro and in nude mice. Comet assay and flow cytometry indicated that combination treatment induced apoptosis in docetaxel-resistant PCa cells. MWA and Western blotting assay revealed that combination treatment suppressed protein expression of Bcl-2, AKT2, c-Myc, apoptosis and caspase activation inhibitor (AVEN), pyruvate kinase M2 (PKM2) but increased protein expression of Bax, caspase 3, cytochrome c, glucose-6-phosphate dehydrogenase (G6PD) and acylglycerol kinase (AGK). Overexpression of Bcl-2 in the docetaxel-resistant PCa cells enhanced cell proliferation of docetaxel-resistant PCa cells under combination treatment. Analysis with qRT-PCR suggested that combination treatment decreased cholesterol biosynthesis genes DHCR24 (24-dehydrocholesterol reductase) and LSS (lanosterol synthase) but increased genes involved in glycolysis and TCA cycle. CONCLUSIONS Combination treatment of docetaxel with CAPE effectively suppressed the proliferation and survival of docetaxel-resistant PCa cells via inhibition of Bcl-2 and c-Myc as well as induction of metabolism interference. Combination treatment can be beneficial for patients with docetaxel-resistant PCa.
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Affiliation(s)
- Yu-Ke Fu
- Institute of Cellular and System Medicine, National Health Research Institutes, No. 35, Keyan Road, Zhunan Town, 35053, Miaoli County, Taiwan
| | - Bi-Juan Wang
- Institute of Cellular and System Medicine, National Health Research Institutes, No. 35, Keyan Road, Zhunan Town, 35053, Miaoli County, Taiwan
| | - Jen-Chih Tseng
- Institute of Cellular and System Medicine, National Health Research Institutes, No. 35, Keyan Road, Zhunan Town, 35053, Miaoli County, Taiwan
| | - Shih-Han Huang
- Institute of Cellular and System Medicine, National Health Research Institutes, No. 35, Keyan Road, Zhunan Town, 35053, Miaoli County, Taiwan
| | - Ching-Yu Lin
- Institute of Cellular and System Medicine, National Health Research Institutes, No. 35, Keyan Road, Zhunan Town, 35053, Miaoli County, Taiwan
| | - Ying-Yu Kuo
- Institute of Cellular and System Medicine, National Health Research Institutes, No. 35, Keyan Road, Zhunan Town, 35053, Miaoli County, Taiwan
| | - Tzyh-Chyuan Hour
- Department of Biochemistry, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chih-Pin Chuu
- Institute of Cellular and System Medicine, National Health Research Institutes, No. 35, Keyan Road, Zhunan Town, 35053, Miaoli County, Taiwan. .,Graduate Program for Aging and Graduate Institute of Basic Research Sciences, China Medical University, Taichung, Taiwan. .,Biotechnology Center, National Chung Hsing University, Taichung City, Taiwan. .,Department of Life Sciences, National Central University, Taoyuan City, Taiwan.
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18
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Feng D, Shi X, Xiong Q, Zhang F, Li D, Yang L. A Gene Prognostic Index Associated With Epithelial-Mesenchymal Transition Predicting Biochemical Recurrence and Tumor Chemoresistance for Prostate Cancer. Front Oncol 2022; 11:805571. [PMID: 35096608 PMCID: PMC8790245 DOI: 10.3389/fonc.2021.805571] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 12/14/2021] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND We aimed to establish a novel epithelial-mesenchymal transition (EMT)-related gene prognostic index (EMTGPI) associated with biochemical recurrence (BCR) and drug resistance for prostate cancer (PCa). METHODS We used Lasso and Cox regression analysis to establish the EMTGPI. All analyses were conducted with R version 3.6.3 and its suitable packages. RESULTS We established the EMTGPI based on SFRP4 and SPP1. Patients in high-risk group had 2.23 times of BCR risk than those in low-risk group (p = 0.003), as well as 2.36 times of metastasis risk (p = 0.053). In external validation, we detected similar diagnostic efficacy and prognostic value in terms of BCR free survival. For drug resistance, we observe moderately diagnostic accuracy of EMTGPI score (AUC: 0.804). We found that PDCD1LG2 (p = 0.04) and CD96 (p = 0.01) expressed higher in BCR patients compared with their counterpart. For TME analysis, we detected that CD8+ T cells and M1 macrophages expressed higher in BCR group. Moreover, stromal score (p = 0.003), immune score (p = 0.01), and estimate score (p = 0.003) were higher in BCR patients. We found that EMTGPI was significantly related to HAVCR2 (r: 0.34), CD96 (r: 0.26), CD47 (r: 0.22), KIR3DL1 (r: -0.21), KLRD1 (r: -0.21), and CD2 (r: 0.21). In addition, we observed that EMTGPI was significantly associated with M1 macrophages (r: 0.6), M2 macrophages (r: -0.33), monocytes (r: -0.18), neutrophils (r: -0.43), CD8+ T cells (r: 0.13), and dendritic cells (r: 0.37). PHA-793887 was the common drug sensitive to SPP1 and SFRP4, and PC3 and DU145 were the common PCa-related cell lines of SPP1, SFRP4, and PHA-793887. CONCLUSIONS We concluded that the EMTGPI score based on SFRP4 and SPP1 could be used to predict BCR for PCa patients. We confirmed the impact of immune evasion on the BCR process of PCa.
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Affiliation(s)
| | | | | | | | | | - Lu Yang
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
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19
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Targeted Therapy Modulates the Secretome of Cancer-Associated Fibroblasts to Induce Resistance in HER2-Positive Breast Cancer. Int J Mol Sci 2021; 22:ijms222413297. [PMID: 34948097 PMCID: PMC8706990 DOI: 10.3390/ijms222413297] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/26/2021] [Accepted: 12/06/2021] [Indexed: 12/29/2022] Open
Abstract
The combination of trastuzumab plus pertuzumab plus docetaxel as a first-line therapy in patients with HER2-positive metastatic breast cancer has provided significant clinical benefits compared to trastuzumab plus docetaxel alone. However, despite the therapeutic success of existing therapies targeting HER2, tumours invariably relapse. Therefore, there is an urgent need to improve our understanding of the mechanisms governing resistance, so that specific therapeutic strategies can be developed to provide improved efficacy. It is well known that the tumour microenvironment (TME) has a significant impact on cancer behaviour. Cancer-associated fibroblasts (CAFs) are essential components of the tumour stroma that have been linked to acquired therapeutic resistance and poor prognosis in breast cancer. For this reason, it would be of interest to identify novel biomarkers in the tumour stroma that could emerge as therapeutic targets for the modulation of resistant phenotypes. Conditioned medium experiments carried out in our laboratory with CAFs derived from HER2-positive patients showed a significant capacity to promote resistance to trastuzumab plus pertuzumab therapies in two HER2-positive breast cancer cell lines (BCCLs), even in the presence of docetaxel. In order to elucidate the components of the CAF-conditioned medium that may be relevant in the promotion of BCCL resistance, we implemented a multiomics strategy to identify cytokines, transcription factors, kinases and miRNAs in the secretome that have specific targets in cancer cells. The combination of cytokine arrays, label-free LC-MS/MS quantification and miRNA analysis to explore the secretome of CAFs under treatment conditions revealed several up- and downregulated candidates. We discuss the potential role of some of the most interesting candidates in generating resistance in HER2-positive breast cancer.
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20
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Transcriptomic analysis of castration, chemo-resistant and metastatic prostate cancer elucidates complex genetic crosstalk leading to disease progression. Funct Integr Genomics 2021; 21:451-472. [PMID: 34184132 DOI: 10.1007/s10142-021-00789-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 06/05/2020] [Accepted: 05/06/2021] [Indexed: 12/22/2022]
Abstract
Prostate adenocarcinoma, with its rising numbers and high fatality rate, is a daunting healthcare challenge to clinicians and researchers alike. The mainstay of our meta-analysis was to decipher differentially expressed genes (DEGs), their corresponding transcription factors (TFs), miRNAs (microRNA) and interacting pathways underlying the progression of prostate cancer (PCa). We have chosen multiple datasets from primary, castration-resistant, chemo-resistant and metastatic prostate cancer stages for investigation. From our tissue-specific and disease-specific co-expression networks, fifteen hub genes such as ACTB, ACTN1, CDH1, CDKN1A, DDX21, ELF3, FLNA, FLNC, IKZF1, ILK, KRT13, KRT18, KRT19, SVIL and TRIM29 were identified and validated by molecular complex detection analysis as well as survival analysis. In our attempt to highlight hub gene-associated mutations and drug interactions, FLNC was found to be most commonly mutated and CDKN1A gene was found to have highest druggability. Moreover, from DAVID and gene set enrichment analysis, the focal adhesion and oestrogen signalling pathways were found enriched which indicates the involvement of hub genes in tumour invasiveness and metastasis. Finally by Enrichr tool and miRNet, we identified transcriptional factors SNAI2, TP63, CEBPB and KLF11 and microRNAs, namely hsa-mir-1-3p, hsa-mir-145-5p, hsa-mir-124-3p and hsa-mir-218-5p significantly controlling the hub gene expressions. In a nutshell, our report will help to gain a deeper insight into complex molecular intricacies and thereby unveil the probable biomarkers and therapeutic targets involved with PCa progression.
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21
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Liu RJ, Li SY, Liu LQ, Xu B, Chen M. Identification of biomarkers, pathways and potential therapeutic target for docetaxel resistant prostate cancer. Bioengineered 2021; 12:2377-2388. [PMID: 34077304 PMCID: PMC8806863 DOI: 10.1080/21655979.2021.1936831] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Docetaxel has been proved to provide survival benefit for advanced prostate cancer (PCa) patients. Resistance to docetaxel further reduces the survival of these patients. Herein, we performed a comprehensive bioinformatic analysis to identify differentially expressed genes (DEGs) between docetaxel sensitive and resistant PCa (DRPC) cell based on Gene Expression Omnibus (GEO) database. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were applied for functional and pathway analysis of DEGs. The STRING database, cytoscape software and plug-in 'cytoHubba' were used to construct protein-protein interaction (PPI) networks and identify hub genes. Survival analysis were performed via GEPIA database. Finally, we conducted immune infiltration analysis by TIMER. A total of 460 DEGs were identified. GO functional analysis showed that these DEGs are mainly enriched in chemotaxis, negative regulation of intracellular signal transduction, and regulation of cell adhesion, positive regulation of inflammatory response, regulation of response to cytokine stimulus. According to the results of KEGG pathway analysis, these DEGs are mainly involved in signaling by Rho GTPases, Miro GTPases and RHOBTB3; interferon Signaling; arginine biosynthesis; PI3K-Akt signaling pathway; cytokine-cytokine receptor interaction; MAPK signaling pathway. Finally, CCNB1 and EZH2 were identified as prognostic hub genes and the expression of these two genes were associated with immune infiltration. The present study may helps to improve the understanding of the molecular mechanisms of DRPC and facilitate the selection of therapeutic and prognostic biomarkers for DRPC.
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Affiliation(s)
- Rui-Ji Liu
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China.,Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, China
| | - Shu-Ying- Li
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Cancer Hospital Affiliate to School of Medicine, UESTC, Chengdu, China
| | - Li-Quan Liu
- Department of Urology, Meishan City People's Hospital, Meishan, China
| | - Bin Xu
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China.,Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, China
| | - Ming Chen
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China.,Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, China.,Nanjing Lishui District People's Hospital, Zhongda Hospital Lishui Branch, Southeast University, Nanjing, China
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22
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Liotti A, La Civita E, Cennamo M, Crocetto F, Ferro M, Guadagno E, Insabato L, Imbimbo C, Palmieri A, Mirone V, Liguoro P, Formisano P, Beguinot F, Terracciano D. Periprostatic adipose tissue promotes prostate cancer resistance to docetaxel by paracrine IGF-1 upregulation of TUBB2B beta-tubulin isoform. Prostate 2021; 81:407-417. [PMID: 33734457 PMCID: PMC8251776 DOI: 10.1002/pros.24117] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 02/19/2021] [Accepted: 03/05/2021] [Indexed: 12/14/2022]
Abstract
Growing evidence supports the pivotal role played by periprostatic adipose tissue (PPAT) in prostate cancer (PCa) microenvironment. We investigated whether PPAT can affect response to Docetaxel (DCTX) and the mechanisms associated. Conditioned medium was collected from the in vitro differentiated adipocytes isolated from PPAT which was isolated from PCa patients, during radical prostatectomy. Drug efficacy was studied by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide citotoxicity assay. Culture with CM of human PPAT (AdipoCM) promotes DCTX resistance in two different human prostate cancer cell lines (DU145 and PC3) and upregulated the expression of BCL-xL, BCL-2, and TUBB2B. AG1024, a well-known IGF-1 receptor inhibitor, counteracts the decreased response to DCTX observed in presence of AdipoCM and decreased TUBB2B expression, suggesting that a paracrine secretion of IGF-1 by PPAT affect DCTX response of PCa cell. Collectively, our study showed that factors secreted by PPAT elicits DCTX resistance through antiapoptotic proteins and TUBB2B upregulation in androgen independent PCa cell lines. These findings reveal the potential of novel therapeutic strategies targeting adipocyte-released factors and IGF-1 axis to overcome DCTX resistance in patients with PCa.
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Affiliation(s)
- Antonietta Liotti
- Department of Translational Medical SciencesUniversity of Naples “Federico II”NaplesItaly
| | - Evelina La Civita
- Department of Translational Medical SciencesUniversity of Naples “Federico II”NaplesItaly
| | - Michele Cennamo
- Department of Translational Medical SciencesUniversity of Naples “Federico II”NaplesItaly
| | - Felice Crocetto
- Department of NeurosciencesUniversity of Naples Federico IINaplesItaly
| | - Matteo Ferro
- Department of Urology, European Institute of OncologyIRCCSMilanItaly
| | - Elia Guadagno
- Department of Advanced Biomedical Sciences, Anatomic Pathology Unit, School of MedicineUniversity of Naples Federico IINaplesItaly
| | - Luigi Insabato
- Department of Advanced Biomedical Sciences, Anatomic Pathology Unit, School of MedicineUniversity of Naples Federico IINaplesItaly
| | - Ciro Imbimbo
- Department of NeurosciencesUniversity of Naples Federico IINaplesItaly
| | | | - Vincenzo Mirone
- Department of NeurosciencesUniversity of Naples Federico IINaplesItaly
| | - Pasquale Liguoro
- Department of Translational Medical SciencesUniversity of Naples “Federico II”NaplesItaly
| | - Pietro Formisano
- Department of Translational Medical SciencesUniversity of Naples “Federico II”NaplesItaly
| | - Francesco Beguinot
- Department of Translational Medical SciencesUniversity of Naples “Federico II”NaplesItaly
| | - Daniela Terracciano
- Department of Translational Medical SciencesUniversity of Naples “Federico II”NaplesItaly
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23
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SUMOylation controls the binding of hexokinase 2 to mitochondria and protects against prostate cancer tumorigenesis. Nat Commun 2021; 12:1812. [PMID: 33753739 PMCID: PMC7985146 DOI: 10.1038/s41467-021-22163-7] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Accepted: 01/15/2021] [Indexed: 12/21/2022] Open
Abstract
Human hexokinase 2 is an essential regulator of glycolysis that couples metabolic and proliferative activities in cancer cells. The binding of hexokinase 2 to the outer membrane of mitochondria is critical for its oncogenic activity. However, the regulation of hexokinase 2 binding to mitochondria remains unclear. Here, we report that SUMOylation regulates the binding of hexokinase 2 to mitochondria. We find that hexokinase 2 can be SUMOylated at K315 and K492. SUMO-specific protease SENP1 mediates the de-SUMOylation of hexokinase 2. SUMO-defective hexokinase 2 preferably binds to mitochondria and enhances both glucose consumption and lactate production and decreases mitochondrial respiration in parallel. This metabolic reprogramming supports prostate cancer cell proliferation and protects cells from chemotherapy-induced cell apoptosis. Moreover, we demonstrate an inverse relationship between SENP1-hexokinase 2 axis and chemotherapy response in prostate cancer samples. Our data provide evidence for a previously uncovered posttranslational modification of hexokinase 2 in cancer cells, suggesting a potentially actionable strategy for preventing chemotherapy resistance in prostate cancer. The oncogenic activity of Hexokinase 2, the first rate-limiting enzyme of glycolysis, requires its mitochondrial localization. Here, the authors show that SUMOylation of hexokinase 2 disrupts its binding to mitochondria and protects cells from tumorigenesis in prostate cancer.
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24
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Zhang B, Li Y, Wu Q, Xie L, Barwick B, Fu C, Li X, Wu D, Xia S, Chen J, Qian WP, Yang L, Osunkoya AO, Boise L, Vertino PM, Zhao Y, Li M, Chen HR, Kowalski J, Kucuk O, Zhou W, Dong JT. Acetylation of KLF5 maintains EMT and tumorigenicity to cause chemoresistant bone metastasis in prostate cancer. Nat Commun 2021; 12:1714. [PMID: 33731701 PMCID: PMC7969754 DOI: 10.1038/s41467-021-21976-w] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 01/18/2021] [Indexed: 12/25/2022] Open
Abstract
Advanced prostate cancer (PCa) often develops bone metastasis, for which therapies are very limited and the underlying mechanisms are poorly understood. We report that bone-borne TGF-β induces the acetylation of transcription factor KLF5 in PCa bone metastases, and acetylated KLF5 (Ac-KLF5) causes osteoclastogenesis and bone metastatic lesions by activating CXCR4, which leads to IL-11 secretion, and stimulating SHH/IL-6 paracrine signaling. While essential for maintaining the mesenchymal phenotype and tumorigenicity, Ac-KLF5 also causes resistance to docetaxel in tumors and bone metastases, which is overcome by targeting CXCR4 with FDA-approved plerixafor. Establishing a mechanism for bone metastasis and chemoresistance in PCa, these findings provide a rationale for treating chemoresistant bone metastasis of PCa with inhibitors of Ac-KLF5/CXCR4 signaling.
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Affiliation(s)
- Baotong Zhang
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Yixiang Li
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Qiao Wu
- Department of Genetics and Cell Biology, Nankai University College of Life Sciences, Tianjin, China
| | - Lin Xie
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
- Third Affiliated Hospital of Kunming Medical University, Cancer Hospital of Yunnan Province, Kunming, China
| | - Benjamin Barwick
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Changying Fu
- Department of Genetics and Cell Biology, Nankai University College of Life Sciences, Tianjin, China
- Department of Human Cell Biology and Genetics, Southern University of Science and Technology School of Medicine, Shenzhen, China
| | - Xin Li
- Molecular Oncology and Biomarkers Program, Georgia Cancer Center, Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Daqing Wu
- Molecular Oncology and Biomarkers Program, Georgia Cancer Center, Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Siyuan Xia
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Jing Chen
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Wei Ping Qian
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
- Department of Surgery, Emory University School of Medicine, Atlanta, GA, USA
| | - Lily Yang
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
- Department of Surgery, Emory University School of Medicine, Atlanta, GA, USA
| | - Adeboye O Osunkoya
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
- Department of Pathology and Urology, Emory University School of Medicine, Atlanta, GA, USA
| | - Lawrence Boise
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Paula M Vertino
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
- Department of Radiation Oncology, Emory University School of Medicine, Atlanta, GA, USA
| | - Yichao Zhao
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Menglin Li
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Hsiao-Rong Chen
- Department of Biostatistics & Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Jeanne Kowalski
- Department of Biostatistics & Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Omer Kucuk
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Wei Zhou
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Jin-Tang Dong
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA.
- Winship Cancer Institute, Emory University, Atlanta, GA, USA.
- Department of Human Cell Biology and Genetics, Southern University of Science and Technology School of Medicine, Shenzhen, China.
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Ruiz de Porras V, Wang XC, Palomero L, Marin-Aguilera M, Solé-Blanch C, Indacochea A, Jimenez N, Bystrup S, Bakht M, Conteduca V, Piulats JM, Buisan O, Suarez JF, Pardo JC, Castro E, Olmos D, Beltran H, Mellado B, Martinez-Balibrea E, Font A, Aytes A. Taxane-induced Attenuation of the CXCR2/BCL-2 Axis Sensitizes Prostate Cancer to Platinum-based Treatment. Eur Urol 2020; 79:722-733. [PMID: 33153817 DOI: 10.1016/j.eururo.2020.10.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 10/02/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND Taxanes are the most active chemotherapy agents in metastatic castration-resistant prostate cancer (mCRPC) patients; yet, resistance occurs almost invariably, representing an important clinical challenge. Taxane-platinum combinations have shown clinical benefit in a subset of patients, but the mechanistic basis and biomarkers remain elusive. OBJECTIVE To identify mechanisms and response indicators for the antitumor efficacy of taxane-platinum combinations in mCRPC. DESIGN, SETTING, AND PARTICIPANTS Transcriptomic data from a publicly available mCRPC dataset of taxane-exposed and taxane-naïve patients were analyzed to identify response indicators and emerging vulnerabilities. Functional and preclinical validation was performed in taxane-resistant mCRPC cell lines and genetically engineered mouse models (GEMMs). INTERVENTION Metastatic CRPC cells were treated with docetaxel, cisplatin, carboplatin, the CXCR2 antagonist SB265610, and the BCL-2 inhibitor venetoclax. Gain and loss of function in culture of CXCR2 and BCL-2 were achieved by overexpression or siRNA silencing. Preclinical assays in GEMM mice tested the antitumor efficacy of taxane-platinum combinations. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS Proliferation, apoptosis, and colony assays measured drug activity in vitro. Preclinical endpoints in mice included growth, survival, and histopathology. Changes in CXCR2, BCL-2, and chemokines were analyzed by reverse transcriptase quantitative polymerase chain reaction and Western blot. Human expression data were analyzed using Gene Set Enrichment Analysis, hierarchical clustering, and correlation studies. GraphPad Prism software and R-studio were used for statistical and data analyses. RESULTS AND LIMITATIONS Transcriptomic data from taxane-exposed human mCRPC tumors correlate with a marked negative enrichment of apoptosis and inflammatory response pathways accompanied by a marked downregulation of CXCR2 and BCL-2. Mechanistically, we show that docetaxel inhibits CXCR2 and that BCL-2 downregulation occurs as a downstream effect. Further, we demonstrated in experimental models that the sensitivity to cisplatin is dependent on CXCR2 and BCL-2, and that targeting them sensitizes prostate cancer (PC) cells to cisplatin. In vivo taxane-platinum combinations are highly synergistic, and previous exposure to taxanes sensitizes mCRPC tumors to second-line cisplatin treatment. CONCLUSIONS The hitherto unappreciated attenuation of the CXCR2/BCL-2 axis in taxane-treated mCRPC patients is an acquired vulnerability with potential predictive activity for platinum-based treatments. PATIENT SUMMARY A subset of patients with aggressive and therapy-resistant prostate cancer benefits from taxane-platinum combination chemotherapy; however, we lack the mechanistic understanding of how that synergistic effect occurs. Here, using patient data and preclinical models, we found that taxanes reduce cancer cell escape mechanisms to chemotherapy-induced cell death, hence making these cells more vulnerable to additional platinum treatment.
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Affiliation(s)
- Vicenç Ruiz de Porras
- Germans Trias i Pujol Research Institute (IGTP), Badalona, Spain; Catalan Institute of Oncology, Badalona Applied Research Group in Oncology (B·ARGO), Badalona, Spain
| | - Xieng C Wang
- Program of Molecular Mechanisms and Experimental Therapeutics in Oncology, Bellvitge Institute for Biomedical Research (IDIBELL), L'Hospitalet de Llobregat, Gran Via de L'Hospitalet, Barcelona, Spain
| | - Luis Palomero
- Program of Molecular Mechanisms and Experimental Therapeutics in Oncology, Bellvitge Institute for Biomedical Research (IDIBELL), L'Hospitalet de Llobregat, Gran Via de L'Hospitalet, Barcelona, Spain
| | - Mercedes Marin-Aguilera
- Translational Genomics and Targeted Therapeutics in Solid Tumors Laboratory, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Carme Solé-Blanch
- Germans Trias i Pujol Research Institute (IGTP), Badalona, Spain; Catalan Institute of Oncology, Badalona Applied Research Group in Oncology (B·ARGO), Badalona, Spain
| | - Alberto Indacochea
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Natalia Jimenez
- Translational Genomics and Targeted Therapeutics in Solid Tumors Laboratory, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Sara Bystrup
- Germans Trias i Pujol Research Institute (IGTP), Badalona, Spain; Program Against Cancer Therapeutics Resistance (ProCURE), Catalan Institute of Oncology, Gran Via de L'Hospitalet, Barcelona, Spain
| | - Martin Bakht
- Department of Medical Oncology, Dana Farber Cancer Institute, Boston, MA, USA
| | - Vincenza Conteduca
- Department of Medical Oncology, Dana Farber Cancer Institute, Boston, MA, USA; Instituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), IRCCS, Meldola, Italy
| | - Josep M Piulats
- Program of Molecular Mechanisms and Experimental Therapeutics in Oncology, Bellvitge Institute for Biomedical Research (IDIBELL), L'Hospitalet de Llobregat, Gran Via de L'Hospitalet, Barcelona, Spain; Department of Medical Oncology, Catalan Institute of Oncology (ICO), Hospitalet de Llobregat, Barcelona, Spain
| | - Oscar Buisan
- Department of Urology, Hospital Germans Trias I Pujol, Badalona, Spain
| | - José F Suarez
- Program of Molecular Mechanisms and Experimental Therapeutics in Oncology, Bellvitge Institute for Biomedical Research (IDIBELL), L'Hospitalet de Llobregat, Gran Via de L'Hospitalet, Barcelona, Spain; Department of Urology, Bellvitge University Hospital, Hospitalet de Llobregat, Barcelona, Spain
| | - Juan Carlos Pardo
- Catalan Institute of Oncology, Badalona Applied Research Group in Oncology (B·ARGO), Badalona, Spain; Department of Medical Oncology, Catalan Institute of Oncology, Badalona, Spain
| | - Elena Castro
- Genitourinary Cancer Translational Research Group, The Institute of Biomedical Research in Málaga, Málaga, Spain; Prostate Cancer Clinical Research Unit, Spanish National Cancer Research Centre, Madrid, Spain
| | - David Olmos
- Genitourinary Cancer Translational Research Group, The Institute of Biomedical Research in Málaga, Málaga, Spain; Prostate Cancer Clinical Research Unit, Spanish National Cancer Research Centre, Madrid, Spain
| | - Himisha Beltran
- Department of Medical Oncology, Dana Farber Cancer Institute, Boston, MA, USA
| | - Begoña Mellado
- Translational Genomics and Targeted Therapeutics in Solid Tumors Laboratory, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Department of Medical Oncology, Hospital Clínic, Barcelona, Spain
| | - Eva Martinez-Balibrea
- Germans Trias i Pujol Research Institute (IGTP), Badalona, Spain; Program Against Cancer Therapeutics Resistance (ProCURE), Catalan Institute of Oncology, Gran Via de L'Hospitalet, Barcelona, Spain
| | - Albert Font
- Catalan Institute of Oncology, Badalona Applied Research Group in Oncology (B·ARGO), Badalona, Spain; Department of Medical Oncology, Catalan Institute of Oncology, Badalona, Spain.
| | - Alvaro Aytes
- Program of Molecular Mechanisms and Experimental Therapeutics in Oncology, Bellvitge Institute for Biomedical Research (IDIBELL), L'Hospitalet de Llobregat, Gran Via de L'Hospitalet, Barcelona, Spain; Program Against Cancer Therapeutics Resistance (ProCURE), Catalan Institute of Oncology, Gran Via de L'Hospitalet, Barcelona, Spain.
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Inflammation as a Driver of Prostate Cancer Metastasis and Therapeutic Resistance. Cancers (Basel) 2020; 12:cancers12102984. [PMID: 33076397 PMCID: PMC7602551 DOI: 10.3390/cancers12102984] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/24/2020] [Accepted: 10/11/2020] [Indexed: 12/18/2022] Open
Abstract
Simple Summary Prostate cancer is the most common malignancy in men, with a high mortality rate when disease progresses to metastasis and therapeutic resistance. Evidence implicates inflammation as a driver of prostate cancer risk and has a significant impact on processes in the tumor microenvironment that facilitate progression to advanced therapeutically resistant disease. In this review, we discuss the sources of inflammation in the prostate, the functional contribution of the critical inflammatory effectors to prostate cancer initiation and metastatic progression, and the therapeutic challenges that they impose on treatment of advanced disease and overcoming therapeutic resistance. Full understanding of the role of inflammation in prostate cancer progression to advanced metastatic disease and tumor relapse will aid in the development of personalized predictive biomarkers and therapy to reduce the burden and mortality in prostate cancer patients. Abstract Prostate cancer is the most common malignancy among men, and progression to metastasis and the emergence of therapeutically resistant disease confers a high mortality rate. Growing evidence implicates inflammation as a driver of prostate cancer development and progression, resulting in increased cancer risk for prostate cancer. Population-based studies revealed that the use of antinflammatory drugs led to a 23% risk reduction prostate cancer occurrence, a negative association that was stronger in men who specifically used COX-2 inhibitors. Furthermore, patients that were taking aspirin had a 21% reduction in prostate cancer risk, and further, long-term users of daily low dose aspirin had a 29% prostate cancer risk reduction as compared to the controls. Environmental exposure to bacterial and viral infections, exposure to mutagenic agents, and genetic variations predispose the prostate gland to inflammation, with a coordinated elevated expression of inflammatory cytokines (IL-6, TGF-β). It is the dynamics within the tumor microenvironment that empower these cytokines to promote survival and growth of the primary tumor and facilitate disease progression by navigating the immunoregulatory network, phenotypic epithelial-mesenchymal transition (EMT), angiogenesis, anoikis resistance, and metastasis. In this review, we discuss the sources of inflammation in the prostate, the functional contribution of the critical inflammatory effectors to prostate cancer initiation and metastatic progression, and the therapeutic challenges that they impose on treatment of advanced disease and overcoming therapeutic resistance. Growing mechanistic evidence supports the significance of inflammation in localized prostate cancer, and the systemic impact of the process within the tumor microenvironment on disease progression to advanced therapeutically-resistant prostate cancer. Rigorous exploitation of the role of inflammation in prostate cancer progression to metastasis and therapeutic resistance will empower the development of precise biomarker signatures and effective targeted therapeutics to reduce the clinical burden and lethal disease in the future.
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STAT3 inhibition with galiellalactone effectively targets the prostate cancer stem-like cell population. Sci Rep 2020; 10:13958. [PMID: 32811873 PMCID: PMC7434889 DOI: 10.1038/s41598-020-70948-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 08/05/2020] [Indexed: 12/17/2022] Open
Abstract
Cancer stem cells (CSCs) are a small subpopulation of quiescent cells with the potential to differentiate into tumor cells. CSCs are involved in tumor initiation and progression and contribute to treatment failure through their intrinsic resistance to chemo- or radiotherapy, thus representing a substantial concern for cancer treatment. Prostate CSCs’ activity has been shown to be regulated by the transcription factor Signal Transducer and Activator of Transcription 3 (STAT3). Here we investigated the effect of galiellalactone (GL), a direct STAT3 inhibitor, on CSCs derived from prostate cancer patients, on docetaxel-resistant spheres with stem cell characteristics, on CSCs obtained from the DU145 cell line in vitro and on DU145 tumors in vivo. We found that GL significantly reduced the viability of docetaxel-resistant and patient-derived spheres. Moreover, CSCs isolated from DU145 cells were sensitive to low concentrations of GL, and the treatment with GL suppressed their viability and their ability to form colonies and spheres. STAT3 inhibition down regulated transcriptional targets of STAT3 in these cells, indicating STAT3 activity in CSCs. Our results indicate that GL can target the prostate stem cell niche in patient-derived cells, in docetaxel-resistant spheres and in an in vitro model. We conclude that GL represents a promising therapeutic approach for prostate cancer patients, as it reduces the viability of prostate cancer-therapy-resistant cells in both CSCs and non-CSC populations.
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Li Y, Zhang B, Xiang L, Xia S, Kucuk O, Deng X, Boise LH, Dong JT. TGF-β causes Docetaxel resistance in Prostate Cancer via the induction of Bcl-2 by acetylated KLF5 and Protein Stabilization. Am J Cancer Res 2020; 10:7656-7670. [PMID: 32685011 PMCID: PMC7359077 DOI: 10.7150/thno.44567] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 05/14/2020] [Indexed: 12/13/2022] Open
Abstract
Prostate cancer is the second leading cause of cancer-related death in the United States. As a first line treatment for hormone-refractory prostate cancer, docetaxel (DTX) treatment leads to suboptimal effect since almost all patients eventually develop DTX resistance. In this study, we investigated whether and how TGF-β affects DTX resistance of prostate cancer. Methods: Cytotoxicity of DTX in DU 145 and PC-3 cells was measured by CCK-8 and Matrigel colony formation assays. Resistance to DTX in DU 145 cells was examined in a xenograft tumorigenesis model. A luciferase reporter system was used to determine transcriptional activities. Gene expression was analyzed by RT-qPCR and Western blotting. Results: We found that KLF5 is indispensable in TGF-β-induced DTX resistance. Moreover, KLF5 acetylation at lysine 369 mediates DTX resistance in vitro and in vivo. We showed that the TGF-β/acetylated KLF5 signaling axis activates Bcl-2 expression transcriptionally. Furthermore, DTX-induced Bcl-2 degradation depends on a proteasome pathway, and TGF-β inhibits DTX-induced Bcl-2 ubiquitination. Conclusion: Our study demonstrated that the TGF-β-acetylated KLF5-Bcl-2 signaling axis mediates DTX resistance in prostate cancer and blockade of this pathway could provide clinical insights into chemoresistance of prostate cancer.
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Halabi S, Dutta S, Tangen CM, Rosenthal M, Petrylak DP, Thompson IM, Chi KN, De Bono JS, Araujo JC, Logothetis C, Eisenberger MA, Quinn DI, Fizazi K, Morris MJ, Higano CS, Tannock IF, Small EJ, Kelly WK. Clinical outcomes in men of diverse ethnic backgrounds with metastatic castration-resistant prostate cancer. Ann Oncol 2020; 31:930-941. [PMID: 32289380 DOI: 10.1016/j.annonc.2020.03.309] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/26/2020] [Accepted: 03/30/2020] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND We have shown previously in multivariable analysis that black men had 19% lower risk of death than white men with metastatic castration-resistant prostate cancer (mCRPC) treated with a docetaxel and prednisone (DP)-based regimen. The primary goal of this analysis was to compare progression-free survival (PFS), biochemical PFS, ≥50% decline in prostate-specific antigen (PSA) from baseline and objective response rate (ORR) in white, black and Asian men with mCRPC treated with a DP-based regimen. PATIENTS AND METHODS Individual patient data from 8820 mCRPC men randomized on nine phase III trials to a DP-containing regimen were combined. Race used in the analysis was based on self-report. End points were PFS, biochemical PSA, ≥50% decline in PSA from baseline and ORR. The proportional hazards and the logistic regression models were employed to assess the prognostic importance of race in predicting outcomes adjusting for established prognostic factors. RESULTS Of 8820 patients, 7528 (85%) were white, 500 (6%) were black, 424 were Asian (5%) and 368 (4%) had race unspecified. Median PFS were 8.3 [95% confidence interval (CI) 8.2-8.5], 8.2 (95% CI 7.4-8.8) and 8.3 (95% CI 7.6-8.8) months in white, black and Asian men, respectively. Median PSA PFS were 9.9 (95% CI 9.7-10.4), 8.5 (95% CI 8.0-10.3) and 11.1 (95% CI 9.9-12.5) months in white, black and Asian men, respectively. CONCLUSIONS We observed no differences in clinical outcomes by race and ethnic groups in men with mCRPC enrolled on these phase III clinical trials with DP.
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Affiliation(s)
- S Halabi
- Duke University Medical Center and Duke University, Durham, USA.
| | - S Dutta
- Old Dominion University, Norfolk, USA
| | - C M Tangen
- Fred Hutchinson Cancer Research Center, Seattle, USA
| | - M Rosenthal
- The Royal Melbourne Hospital, Parkville, Australia
| | | | - I M Thompson
- Christus San Rosa Hospital Medical Center, San Antonio, USA
| | - K N Chi
- British Columbia Cancer Agency - Vancouver Centre, Vancouver, Canada
| | - J S De Bono
- The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton, UK
| | - J C Araujo
- The University of Texas MD Anderson Cancer Center, Houston, USA
| | - C Logothetis
- The University of Texas MD Anderson Cancer Center, Houston, USA
| | - M A Eisenberger
- The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins University, Baltimore, USA
| | - D I Quinn
- University of Southern California Norris Comprehensive Cancer Center, Los Angeles, USA
| | - K Fizazi
- Gustave Roussy, Villejuif, France
| | - M J Morris
- Memorial Sloan Kettering Cancer Center, New York, USA
| | - C S Higano
- University of Washington and Fred Hutchinson Cancer Research Center, Seattle, USA
| | - I F Tannock
- Princess Margaret Cancer Centre, University of Toronto, Toronto, Canada
| | - E J Small
- University of California, San Francisco, San Francisco, USA
| | - W K Kelly
- Sidney Kimmel Cancer Center at Thomas Jefferson University, Philadelphia, USA
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Elbadawy M, Abugomaa A, Yamawaki H, Usui T, Sasaki K. Development of Prostate Cancer Organoid Culture Models in Basic Medicine and Translational Research. Cancers (Basel) 2020; 12:E777. [PMID: 32218271 PMCID: PMC7226333 DOI: 10.3390/cancers12040777] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/17/2020] [Accepted: 03/19/2020] [Indexed: 12/19/2022] Open
Abstract
Prostate cancer (PC) is the most prevalent cancer in men and the second main cause of cancer-related death in Western society. The lack of proper PC models that recapitulate the molecular and genomic landscape of clinical disease has hampered progress toward translational research to understand the disease initiation, progression, and therapeutic responses in each patient. Although several models have been developed, they hardly emulated the complicated PC microenvironment. Precision medicine is an emerging approach predicting appropriate therapies for individual cancer patients by means of various analyses of individual genomic profiling and targeting specific cancer pathways. In PC, precision medicine also has the potential to impose changes in clinical practices. Here, we describe the various PC models with special focus on PC organoids and their values in basic medicine, personalized therapy, and translational researches in vitro and in vivo, which could help to achieve the full transformative power of cancer precision medicine.
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Affiliation(s)
- Mohamed Elbadawy
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (M.E.); (A.A.); (K.S.)
- Department of Pharmacology, Faculty of Veterinary Medicine, Benha University, Moshtohor, Toukh 13736, Elqaliobiya, Egypt
| | - Amira Abugomaa
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (M.E.); (A.A.); (K.S.)
- Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Dakahliya, Egypt
| | - Hideyuki Yamawaki
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, Towada, Aomori 034-8628, Japan;
| | - Tatsuya Usui
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (M.E.); (A.A.); (K.S.)
| | - Kazuaki Sasaki
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; (M.E.); (A.A.); (K.S.)
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Jiang X, Guo S, Zhang Y, Zhao Y, Li X, Jia Y, Xu Y, Ma B. LncRNA NEAT1 promotes docetaxel resistance in prostate cancer by regulating ACSL4 via sponging miR-34a-5p and miR-204-5p. Cell Signal 2020; 65:109422. [DOI: 10.1016/j.cellsig.2019.109422] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 09/14/2019] [Accepted: 09/17/2019] [Indexed: 12/30/2022]
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Zhu S, Min Z, Qiao X, Chen S, Yang J, Zhang X, Liu X, Ran W, Lv R, Lin Y, Wang J. Expression profile-based screening for critical genes reveals S100A4, ACKR3 and CDH1 in docetaxel-resistant prostate cancer cells. Aging (Albany NY) 2019; 11:12754-12772. [PMID: 31895690 PMCID: PMC6949054 DOI: 10.18632/aging.102600] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 12/02/2019] [Indexed: 12/18/2022]
Abstract
Docetaxel is a first-line anticancer drug widely used in the treatment of advanced prostate cancer. However, its therapeutic efficacy is limited by its side effects and the development of chemoresistance by the tumor. Using a gene differential expression microarray, we identified 449 genes differentially expressed in docetaxel-resistant DU145 and PC3 cell lines as compared to docetaxel-sensitive controls. Moreover, western blotting and immunohistochemistry revealed altered expression of S100A4, ACKR3 and CDH1in clinical tumor samples. Cytoscape software was used to investigate the relationship between critical proteins and their signaling transduction networks. Functional and pathway enrichment analyses revealed that these signaling pathways were closely related to cellular proliferation, cell adhesion, cell migration and metastasis. In addition, ACKR3 knockout using the crispr/cas9 method andS100A4knockdownusing targeted shRNA exerted additive effects suppressing cancer cell proliferation and migration. This exploratory analysis provides information about potential candidate genes. It also provides new insight into the molecular mechanism underlying docetaxel-resistance in androgen-independent prostate cancer and highlights potential targets to improve therapeutic outcomes.
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Affiliation(s)
- Sha Zhu
- Key laboratory of Tumor Immunology, Center of Infection and Immunization, Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China.,Collaborative Innovation Center of Cancer Chemoprevention, School of Physics and Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Zhixue Min
- The Third People's Hospital of Zhengzhou, Zhengzhou 450000, P.R. China
| | - Xianli Qiao
- Collaborative Innovation Center of Cancer Chemoprevention, School of Physics and Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Shengxian Chen
- Collaborative Innovation Center of Cancer Chemoprevention, School of Physics and Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jian Yang
- School of Medicine, Shanghai Jiao Tong University, Shanghai 20040, P.R. China
| | - Xiao Zhang
- Key laboratory of Tumor Immunology, Center of Infection and Immunization, Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Xigang Liu
- Key laboratory of Tumor Immunology, Center of Infection and Immunization, Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Weijie Ran
- Key laboratory of Tumor Immunology, Center of Infection and Immunization, Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Renguang Lv
- Key laboratory of Tumor Immunology, Center of Infection and Immunization, Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Ying Lin
- Key laboratory of Tumor Immunology, Center of Infection and Immunization, Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jin Wang
- Key laboratory of Tumor Immunology, Center of Infection and Immunization, Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
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Tu J, Peng Q, Shen Y, Hong Y, Zhu J, Feng Z, Zhou P, Fan S, Zhu Y, Zhang Y. Identification of biomarker microRNA-mRNA regulatory pairs for predicting the docetaxel resistance in prostate cancer. J Cancer 2019; 10:5469-5482. [PMID: 31632491 PMCID: PMC6775681 DOI: 10.7150/jca.29032] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 08/05/2019] [Indexed: 02/03/2023] Open
Abstract
Background: Docetaxel resistance is a cursing problem with adverse effects on the therapeutic efficacy of prostate cancer (PCa), involving interactions among multiple molecular components. Single or limited molecules are not strong enough as prediction biomarkers of drug resistance. Network biomarkers are considered to outperform individual markers in disease characterization. Methods: In this study, key microRNAs (miRNAs) as biomarkers were identified from the PubMed citations and miRNA expression profiles. Targets of miRNAs were predicted and enriched by biological function analysis. Key target mRNAs of the biomarker miRNAs were screened from protein-protein interaction network and gene expression profiles, respectively. The results were validated by the assessment of their predictive power and system biological analysis. Results: With this approach, we identified 13 miRNAs and 31 target mRNAs with 66 interactions in the constructed network. Integrative functional enrichment analysis and literature exploration further confirmed that the network biomarkers were highly associated with the development of docetaxel resistance. Conclusions: The findings from our results demonstrated that the identified network biomarkers provide a useful tool for predicting the docetaxel resistance and may be helpful for serving as prediction biomarkers and therapeutic targets. However, it is necessary to conduct biological experiments for further investigating their roles in the development of docetaxel resistance.
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Affiliation(s)
- Jian Tu
- Department of Pathology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Qiliang Peng
- Department of Radiotherapy & Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Yi Shen
- Department of Radiation Oncology, The Affiliated Suzhou Science & Technology Town Hospital of Nanjing Medical University, Suzhou, China
| | - Yin Hong
- Department of Thoracic Surgery, Suzhou BenQ Hospital, Suzhou, China
| | - Jiahao Zhu
- Tongda College of Nanjing University of Post and Telecommunications, Yangzhou, China
| | - Zhengyang Feng
- Department of Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Ping Zhou
- Department of Radiotherapy & Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Shaonan Fan
- Department of Radiotherapy & Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Yaqun Zhu
- Department of Radiotherapy & Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Yongsheng Zhang
- Department of Pathology, The Second Affiliated Hospital of Soochow University, Suzhou, China
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Deng L, Gu X, Zeng T, Xu F, Dong Z, Liu C, Chao H. Identification and characterization of biomarkers and their functions for docetaxel-resistant prostate cancer cells. Oncol Lett 2019; 18:3236-3248. [PMID: 31452801 PMCID: PMC6676406 DOI: 10.3892/ol.2019.10623] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 06/13/2019] [Indexed: 12/27/2022] Open
Abstract
Docetaxel treatment is a standard chemotherapy strategy for castration-resistant prostate cancer (CRPC), and patients with CRPC eventually develop resistance to treatment. However, little is understood regarding the underlying mechanism of resistance. The present study aimed to identify the underlying crucial genes and regulatory networks associated with docetaxel resistance in prostate cancer using bioinformatics analyses. For this purpose, one expression profile dataset (GSE33455), which included two docetaxel-sensitive and two docetaxel-resistant cell lines, was downloaded from the Gene Expression Omnibus database, and analyses of differential gene expression and function enrichment were performed. A protein-protein interaction (PPI) network was constructed, and the associated hub genes were investigated using the Search Tool for the Retrieval of Interacting Genes/Proteins and Cytoscape software. A total of 756 differentially expression genes (DEGs) were identified, including 509 downregulated and 247 upregulated genes. Enrichment analysis revealed that the DEGs were associated with the interferon-γ-mediated signaling pathway, protein binding, bicellular tight junctions and cancer pathways. Two modules were screened from the PPI network, and the corresponding genes were identified to be largely enriched in the interferon-γ-mediated signaling pathway and the negative regulators of the DExD/H-Box helicase 58/interferon induced with helicase C domain 1 signaling pathway, and enriched in cell-cell adhesion and the Rap1 signaling pathway. Among the ten hub genes, epidermal growth factor receptor, spleen tyrosine kinase (SYK), intracellular adhesion molecule 1 (ICAM1), interleukin (IL)6, CXC motif chemokine ligand 8 (CXCL8), cyclin dependent kinase 1 and CD44 molecule (CD44) were significantly differentially expressed in prostate cancer tissues compared with healthy tissues based on The Cancer Genome Atlas data. The Gene Expression Profiling Interactive Analysis database revealed that ICAM1 was positively associated with IL6 and CXCL8, and epidermal growth factor receptor was positively associated with CD44 and SYK. Additionally, ten hub genes, which were identified to be associated with the drug resistance of docetaxel in prostatic carcinoma in the present study, were predominantly associated with tumor progression and metastasis. Reverse transcription-quantitative PCR analysis performed on docetaxel-sensitive and docetaxel-resistant prostate cancer cell lines demonstrated that certain hub genes, including CDK1, 2′-5′-oligoadenylate synthetase 3, CXCL8 and CDH1, were highly expressed in the docetaxel-resistant cell lines, which confirmed the bioinformatics results. In conclusion, the present study identified a number of important genes that are associated with the molecular mechanism of docetaxel resistance by integrated bioinformatical analysis, and these genes and regulatory networks may assist with identifying potential gene therapy targets for CRPC. Further functional analyses are required to validate the current findings.
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Affiliation(s)
- Leihong Deng
- Medical Department of The Graduate School, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xiaopeng Gu
- Department of Orthopedics, Zhoushan Guhechuan Hospital, Zhoushan, Zhejang 316000, P.R. China
| | - Tao Zeng
- Department of Urology, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Fanghua Xu
- Pathology Department, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Zhifeng Dong
- Medical Department of The Graduate School, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Chao Liu
- Medical Department of The Graduate School, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Haichao Chao
- Laboratory of Clinical Medicine, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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Serini S, Cassano R, Trombino S, Calviello G. Nanomedicine-based formulations containing ω-3 polyunsaturated fatty acids: potential application in cardiovascular and neoplastic diseases. Int J Nanomedicine 2019; 14:2809-2828. [PMID: 31114196 PMCID: PMC6488162 DOI: 10.2147/ijn.s197499] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Omega-3 polyunsaturated fatty acids (ω-3 PUFAs) are dietary factors involved in the prevention of cardiovascular, inflammatory, and neoplastic diseases. A multidisciplinary approach – based on recent findings in nutritional science, lipid biochemistry, biotechnology, and biology of inflammation and cancer – has been recently employed to develop ω-3 PUFA-containing nanoformulations with an aim to protect these fatty acids from degradation, increase their bioavailability and delivery to target tissues, and, thus, enhance their bioactivity. In some cases, these nanoformulations were designed to administer ω-3 PUFAs in combination with other nutraceuticals or conventional/innovative drugs. The aim of this strategy was to increase the activities of the compounds contained in the nanoformulation and to reduce the adverse effects often induced by drugs. We herein analyze the results of papers evaluating the potential use of ω-3 PUFA-containing nanomaterials in fighting cardiovascular diseases and cancer. Future directions in this field of research are also provided.
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Affiliation(s)
- Simona Serini
- Institute of General Pathology, Università Cattolica del Sacro Cuore, 00168 Roma, Italy, .,Fondazione Policlinico Universitario A, Gemelli 00168 Roma, Italy,
| | - Roberta Cassano
- Department of Pharmacy, Health and Nutritional Sciences, Università della Calabria, 87036 Cosenza, Italy,
| | - Sonia Trombino
- Department of Pharmacy, Health and Nutritional Sciences, Università della Calabria, 87036 Cosenza, Italy,
| | - Gabriella Calviello
- Institute of General Pathology, Università Cattolica del Sacro Cuore, 00168 Roma, Italy, .,Fondazione Policlinico Universitario A, Gemelli 00168 Roma, Italy,
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Xu Q, Lü Z, Wang X, Zhu Q, Wu H. Secreted frizzled-related protein 5 suppresses aggressive phenotype and reverses docetaxel resistance in prostate cancer. J Investig Med 2019; 67:1009-1017. [DOI: 10.1136/jim-2018-000849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/14/2019] [Indexed: 12/11/2022]
Abstract
Secreted frizzled-related protein 5 (SFRP5) has been reported to be downregulated in prostate cancer. However, its biological role in this malignancy has not been clarified yet. In the present study, we performed SFRP5 overexpression experiments to determine its function in prostate cancer cell growth, invasion, tumorigenesis, and docetaxel sensitivity. Our results showed that overexpression of SFRP5 significantly suppressed the proliferation and colony formation of PC-3 and DU-145 cells, compared with vector-transfected control cells. SFRP5 overexpression arrested PC-3 and DU-145 cells at G0/G1 phase and induced apoptosis. Transwell invasion assay revealed that ectopic expression of SFRP5 inhibited the invasion of PC-3 cells. Overexpression of SFRP5 resensitized docetaxel-resistant PC-3 and DU-145 cells to docetaxel, which was coupled with increased apoptosis. Mechanistically, SFRP5 overexpression blocked β-catenin nuclear translocation and transcriptional activity. In vivo studies confirmed that overexpression of SFRP5 significantly suppressed the growth of PC-3 xenograft tumors. SFRP5-transfected xenograft tumors showed a reduction in the percentage of Ki-67-positive proliferating cells and an increase in terminal deoxynucleotidyl transferasebiotin-dUTP nick end labeling-positive cells. These data suggest that SFRP5 overexpression suppresses the aggressive phenotype of prostate cancer cells and overcomes docetaxel resistance through inactivation of β-catenin signaling. Therefore, delivery of SFRP5 may offer therapeutic benefits in the treatment of prostate cancer.
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Namekawa T, Ikeda K, Horie-Inoue K, Inoue S. Application of Prostate Cancer Models for Preclinical Study: Advantages and Limitations of Cell Lines, Patient-Derived Xenografts, and Three-Dimensional Culture of Patient-Derived Cells. Cells 2019; 8:cells8010074. [PMID: 30669516 PMCID: PMC6357050 DOI: 10.3390/cells8010074] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 01/17/2019] [Accepted: 01/18/2019] [Indexed: 12/13/2022] Open
Abstract
Various preclinical models have been developed to clarify the pathophysiology of prostate cancer (PCa). Traditional PCa cell lines from clinical metastatic lesions, as exemplified by DU-145, PC-3, and LNCaP cells, are useful tools to define mechanisms underlying tumorigenesis and drug resistance. Cell line-based experiments, however, have limitations for preclinical studies because those cells are basically adapted to 2-dimensional monolayer culture conditions, in which the majority of primary PCa cells cannot survive. Recent tissue engineering enables generation of PCa patient-derived xenografts (PDXs) from both primary and metastatic lesions. Compared with fresh PCa tissue transplantation in athymic mice, co-injection of PCa tissues with extracellular matrix in highly immunodeficient mice has remarkably improved the success rate of PDX generation. PDX models have advantages to appropriately recapitulate the molecular diversity, cellular heterogeneity, and histology of original patient tumors. In contrast to PDX models, patient-derived organoid and spheroid PCa models in 3-dimensional culture are more feasible tools for in vitro studies for retaining the characteristics of patient tumors. In this article, we review PCa preclinical model cell lines and their sublines, PDXs, and patient-derived organoid and spheroid models. These PCa models will be applied to the development of new strategies for cancer precision medicine.
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Affiliation(s)
- Takeshi Namekawa
- Division of Gene Regulation and Signal Transduction, Research Center for Genomic Medicine, Saitama Medical University, Hidaka, Saitama 350-1241, Japan.
- Department of Urology, Graduate School of Medicine, Chiba University, Chiba, Chiba 260-8677, Japan.
| | - Kazuhiro Ikeda
- Division of Gene Regulation and Signal Transduction, Research Center for Genomic Medicine, Saitama Medical University, Hidaka, Saitama 350-1241, Japan.
| | - Kuniko Horie-Inoue
- Division of Gene Regulation and Signal Transduction, Research Center for Genomic Medicine, Saitama Medical University, Hidaka, Saitama 350-1241, Japan.
| | - Satoshi Inoue
- Division of Gene Regulation and Signal Transduction, Research Center for Genomic Medicine, Saitama Medical University, Hidaka, Saitama 350-1241, Japan.
- Department of Functional Biogerontology, Tokyo Metropolitan Institute of Gerontology, Itabashi-ku, Tokyo 173-0015, Japan.
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Chemotherapy and Inflammatory Cytokine Signalling in Cancer Cells and the Tumour Microenvironment. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1152:173-215. [PMID: 31456184 DOI: 10.1007/978-3-030-20301-6_9] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cancer is the result of a cell's acquisition of a variety of biological capabilities or 'hallmarks' as outlined by Hanahan and Weinberg. These include sustained proliferative signalling, the ability to evade growth suppressors, resisting cell death, enabling replicative immortality, inducing angiogenesis, and the ability to invade other tissue and metastasize. More recently, the ability to escape immune destruction has been recognized as another important hallmark of tumours. It is suggested that genome instability and inflammation accelerates the acquisition of a variety of the above hallmarks. Inflammation, is a product of the body's response to tissue damage or pathogen invasion. It is required for tissue repair and host defense, but prolonged inflammation can often be the cause for disease. In a cancer patient, it is often unclear whether inflammation plays a protective or deleterious role in disease progression. Chemotherapy drugs can suppress tumour growth but also induce pathways in tumour cells that have been shown experimentally to support tumour progression or, in other cases, encourage an anti-tumour immune response. Thus, with the goal of better understanding the context under which each of these possible outcomes occurs, recent progress exploring chemotherapy-induced inflammatory cytokine production and the effects of cytokines on drug efficacy in the tumour microenvironment will be reviewed. The implications of chemotherapy on host and tumour cytokine pathways and their effect on the treatment of cancer patients will also be discussed.
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Halabi S, Dutta S, Tangen CM, Rosenthal M, Petrylak DP, Thompson IM, Chi KN, Araujo JC, Logothetis C, Quinn DI, Fizazi K, Morris MJ, Eisenberger MA, George DJ, De Bono JS, Higano CS, Tannock IF, Small EJ, Kelly WK. Overall Survival of Black and White Men With Metastatic Castration-Resistant Prostate Cancer Treated With Docetaxel. J Clin Oncol 2018; 37:403-410. [PMID: 30576268 DOI: 10.1200/jco.18.01279] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
PURPOSE Several studies have reported that among patients with localized prostate cancer, black men have a shorter overall survival (OS) time than white men, but few data exist for men with advanced prostate cancer. The primary goal of this analysis was to compare the OS in black and white men with metastatic castration-resistant prostate cancer (mCRPC) who were treated in phase III clinical trials with docetaxel plus prednisone (DP) or a DP-containing regimen. METHODS Individual participant data from 8,820 men with mCRPC randomly assigned in nine phase III trials to DP or a DP-containing regimen were combined. Race was based on self-report. The primary end point was OS. The Cox proportional hazards regression model was used to assess the prognostic importance of race (black v white) adjusted for established risk factors common across the trials (age, prostate-specific antigen, performance status, alkaline phosphatase, hemoglobin, and sites of metastases). RESULTS Of 8,820 men, 7,528 (85%) were white, 500 (6%) were black, 424 (5%) were Asian, and 368 (4%) were of unknown race. Black men were younger and had worse performance status, higher testosterone and prostate-specific antigen, and lower hemoglobin than white men. Despite these differences, the median OS was 21.0 months (95% CI, 19.4 to 22.5 months) versus 21.2 months (95% CI, 20.8 to 21.7 months) in black and white men, respectively. The pooled multivariable hazard ratio of 0.81 (95% CI, 0.72 to 0.91) demonstrates that overall, black men have a statistically significant decreased risk of death compared with white men ( P < .001). CONCLUSION When adjusted for known prognostic factors, we observed a statistically significant increased OS in black versus white men with mCRPC who were enrolled in these clinical trials. The mechanism for these differences is not known.
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Affiliation(s)
| | | | | | - Mark Rosenthal
- 3 The Royal Melbourne Hospital, Parkville, VIC, Australia
| | | | | | - Kim N Chi
- 6 BC Cancer Agency Vancouver Centre, Vancouver, BC
| | - John C Araujo
- 7 The University of Texas MD Anderson Cancer Center, Houston, TX
| | | | - David I Quinn
- 8 University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA
| | | | | | - Mario A Eisenberger
- 11 The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins University, Baltimore, MD
| | | | - Johann S De Bono
- 12 The Institute of Cancer Research and The Royal Marsden National Health Service Foundation Trust, Sutton, United Kingdom
| | | | - Ian F Tannock
- 13 Princess Margaret Cancer Centre, University of Toronto, Toronto, Ontario, Canada
| | - Eric J Small
- 14 University of California San Francisco, San Francisco, CA
| | - William Kevin Kelly
- 15 Sidney Kimmel Cancer Center at Thomas Jefferson University, Philadelphia, PA
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Fan S, Liang Z, Gao Z, Pan Z, Han S, Liu X, Zhao C, Yang W, Pan Z, Feng W. Identification of the key genes and pathways in prostate cancer. Oncol Lett 2018; 16:6663-6669. [PMID: 30405806 PMCID: PMC6202544 DOI: 10.3892/ol.2018.9491] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 09/17/2018] [Indexed: 12/13/2022] Open
Abstract
Prostate cancer (PCa) is one of the most common malignancies in men globally. The aim of the present study was to identify the key genes and pathways involved in the occurrence of PCa. Gene expression profile (GSE55945) was downloaded from Gene Expression Omnibus, and the differentially expressed genes (DEGs) were identified. Subsequently, Gene ontology analysis, KEGG pathway analysis and protein-protein interaction (PPI) analysis of DEGs were performed. Finally, the identified key genes were confirmed by immunohistochemistry. The GO analysis results showed that the DEGs were mainly participated in cell cycle, cell division, cell development and cell junction. The KEGG pathway analysis showed that the DEGs were mainly enriched in proteoglycans in cancer, endocytosis, focal adhesion and hippo signaling pathway. The PPI analysis results showed that RPS21, FOXO1, BIRC5, POLR2H, RPL22L1 and NPM1 were the key genes involved in the occurrence of PCa, and the Module analysis indicated that the occurrence of PCa was associated with cell cycle, oocyte meiosis and ribosome biogenesis. IHC result showed that the expression of RPS21, BIRC5, POLR2H, RPL22L1 and NPM1 were significantly upregulated in PCa, while the expression of FOXO1 was significantly downregulated in PCa, matching with the bioinformatics analysis. Taken together, several key genes and pathways were identified involved in PCa, which might provide the potential biomarker for prognosis, diagnosis and drug targets.
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Affiliation(s)
- Shutong Fan
- College of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Zumu Liang
- College of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Zhiqin Gao
- College of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Zhiwei Pan
- Department of Internal Medicine, Laizhou Development Zone Hospital, Yantai, Shandong 261400, P.R. China
| | - Shaojie Han
- Animal Epidemic Prevention and Epidemic Control Center, Changle County Bureau of Animal Health and Production, Weifang, Shandong 262400, P.R. China
| | - Xiaoying Liu
- College of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Chunling Zhao
- College of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Weiwei Yang
- College of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Zhifang Pan
- College of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
| | - Weiguo Feng
- College of Bioscience and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China
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Sokol MB, Nikolskaya ED, Yabbarov NG, Zenin VA, Faustova MR, Belov AV, Zhunina OA, Mollaev MD, Zabolotsky AI, Tereshchenko OG, Severin ES. Development of novel PLGA nanoparticles with co‐encapsulation of docetaxel and abiraterone acetate for a highly efficient delivery into tumor cells. J Biomed Mater Res B Appl Biomater 2018; 107:1150-1158. [DOI: 10.1002/jbm.b.34208] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 06/01/2018] [Accepted: 07/06/2018] [Indexed: 02/04/2023]
Affiliation(s)
- Mariya B. Sokol
- Russian Research Center for Molecular Diagnostics and Therapy 117638 Moscow Russia
| | - Elena D. Nikolskaya
- Russian Research Center for Molecular Diagnostics and Therapy 117638 Moscow Russia
| | - Nikita G. Yabbarov
- Russian Research Center for Molecular Diagnostics and Therapy 117638 Moscow Russia
| | - Vladimir A. Zenin
- Federal Research Centre, Fundamentals of Biotechnology of the Russian Academy of Science 119071 Moscow Russia
| | - Mariya R. Faustova
- Russian Research Center for Molecular Diagnostics and Therapy 117638 Moscow Russia
- Moscow Technological University 119571 Moscow Russia
| | - Alexey V. Belov
- Dmitry Mendeleev University of Chemical Technology of Russia 125047 Moscow Russia
| | - Olga A. Zhunina
- Russian Research Center for Molecular Diagnostics and Therapy 117638 Moscow Russia
| | - Murad D. Mollaev
- Russian Research Center for Molecular Diagnostics and Therapy 117638 Moscow Russia
- Moscow Technological University 119571 Moscow Russia
| | - Artur I. Zabolotsky
- Russian Research Center for Molecular Diagnostics and Therapy 117638 Moscow Russia
- Moscow Technological University 119571 Moscow Russia
| | | | - Eugen S. Severin
- Russian Research Center for Molecular Diagnostics and Therapy 117638 Moscow Russia
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Luo J, Tian J, Chou F, Lin C, Xing EZ, Zuo L, Niu Y, Yeh S, Chang C. Targeting the androgen receptor (AR) with AR degradation enhancer ASC-J9® led to increase docetaxel sensitivity via suppressing the p21 expression. Cancer Lett 2018; 444:35-44. [PMID: 30248372 DOI: 10.1016/j.canlet.2018.09.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 09/11/2018] [Accepted: 09/18/2018] [Indexed: 12/17/2022]
Abstract
Chemotherapy with docetaxel remains the effective therapy to suppress castration resistant prostate cancer (CRPC) in some patients. However, most chemotherapy with docetaxel eventually fails with the development of docetaxel resistance after 18-weeks of treatment. Here we found docetaxel treatment might have an adverse effect of increasing the androgen receptor (AR) protein level in the CRPC cells, and combining docetaxel with anti-AR therapy using AR-shRNA or the AR degradation enhancer ASC-J9® may increase docetaxel sensitivity to better suppress the CRPC cell growth. Mechanism dissection found docetaxel might have the adverse effect of increasing the AR protein stability via suppressing the AR ubiquitination due to the increased AR phosphorylation. The consequence of such increased AR protein may then lead to increase p21 expression via transcriptional regulation. Preclinical studies with in vitro cells lines also demonstrated that targeting AR with ASC-J9® led to suppressing the AR-increased p21 expression to improve the docetaxel sensitivity in the CRPC cells that already developed docetaxel resistance. Together, these results suggest that a combined therapy of docetaxel and ASC-J9® is a novel therapy to better suppress CRPC in patients that already developed docetaxel resistance.
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Affiliation(s)
- Jie Luo
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology, The Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY, 14642, USA; Biology Department, University of Rochester, Rochester, NY, USA
| | - Jing Tian
- Chawnshang Chang Sex Hormone Research Center, Tianjin Institute of Urology, Tianjin Medical University, Tianjin, 300211, China
| | - FuJu Chou
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology, The Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Changyi Lin
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology, The Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Emily Zixin Xing
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology, The Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Li Zuo
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology, The Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY, 14642, USA; Department of Urology, Changzhou Second People's Affiliated Hospital of Nanjing Medical University, Changzhou, 213003, China
| | - Yuanjie Niu
- Chawnshang Chang Sex Hormone Research Center, Tianjin Institute of Urology, Tianjin Medical University, Tianjin, 300211, China
| | - Shuyuan Yeh
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology, The Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Chawnshang Chang
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology, The Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY, 14642, USA; Sex Hormone Research Center, China Medical University and Hospital, Taichung, 404, Taiwan.
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Kim YR, Kim D, Kim SY. Prediction of Acquired Taxane Resistance Using a Personalized Pathway-Based Machine Learning Method. Cancer Res Treat 2018; 51:672-684. [PMID: 30092623 PMCID: PMC6473276 DOI: 10.4143/crt.2018.137] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 08/04/2018] [Indexed: 12/11/2022] Open
Abstract
Purpose This study was conducted to develop and validate an individualized prediction model for automated detection of acquired taxane resistance (ATR). Materials and Methods Penalized regression, combinedwith an individualized pathway score algorithm,was applied to construct a predictive model using publically available genomic cohorts of ATR and intrinsic taxane resistance (ITR). To develop a model with enhanced generalizability, we merged multiple ATR studies then updated the learning parameter via robust cross-study validation. Results For internal cross-study validation, the ATR model produced a perfect performance with an overall area under the receiver operating curve (AUROC) of 1.000 with an area under the precision-recall curve (AUPRC) of 1.000, a Brier score of 0.007, a sensitivity and a specificity of 100%. The model showed an excellent performance on two independent blind ATR cohorts (overall AUROC of 0.940, AUPRC of 0.940, a Brier score of 0.127). When we applied our algorithm to two large-scale pharmacogenomic resources for ITR, the Cancer Genome Project (CGP) and the Cancer Cell Line Encyclopedia (CCLE), an overall ITR cross-study AUROC was 0.70, which is a far better accuracy than an almost random level reported by previous studies. Furthermore, this model had a high transferability on blind ATR cohorts with an AUROC of 0.69, suggesting that general predictive features may be at work across both ITR and ATR. Conclusion We successfully constructed a multi-study–derived personalized prediction model for ATR with excellent accuracy, generalizability, and transferability.
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Affiliation(s)
- Young Rae Kim
- Department of Biochemistry, Konkuk University School of Medicine, Seoul, Korea
| | - Dongha Kim
- Department of Biochemistry, Konkuk University School of Medicine, Seoul, Korea
| | - Sung Young Kim
- Department of Biochemistry, Konkuk University School of Medicine, Seoul, Korea
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Minchin RF, Butcher NJ. Trimodal distribution of arylamine N-acetyltransferase 1 mRNA in breast cancer tumors: association with overall survival and drug resistance. BMC Genomics 2018; 19:513. [PMID: 29969986 PMCID: PMC6029418 DOI: 10.1186/s12864-018-4894-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 06/25/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Arylamine N-acetyltransferase 1 (NAT1) is a drug metabolizing enzyme that has been associated with cancer cell proliferation in vitro and with survival in vivo. NAT1 expression has been associated with the estrogen receptor and it has been proposed as a prognostic marker for estrogen receptor positive cancers. However, little is known about the distribution of NAT1 mRNA across an entire patient population or its effects on outcomes. To address this, gene expression data from breast cancer patient cohorts were investigated to identify sub-populations based on the level of NAT1 expression. Patient survival and drug response was examined to determine whether NAT1 mRNA levels influenced any of these parameters. RESULTS NAT1 expression showed a trimodal distribution in breast cancer samples (n = 1980) but not in tumor tissue from ovarian, prostate, cervical or colorectal cancers. In breast cancer, NAT1 mRNA in each sub-population correlated with a separate set of genes suggesting different mechanisms of NAT1 gene regulation. Kaplan-Meier plots showed significantly better survival in patients with highest NAT1 mRNA compared to those with intermediate or low expression. While NAT1 expression was elevated in estrogen receptor-positive patients, it did not appear to be dependent on estrogen receptor expression. Overall survival was analyzed in patients receiving no treatment, hormone therapy or chemotherapy. NAT1 expression correlated strongly with survival in the first 5 years in those patients receiving chemotherapy but did not influence survival in the other two groups. This suggests that low NAT1 expression is associated with chemo-resistance. The sensitivity of NAT1 mRNA levels as a single parameter to identify non-responders to chemotherapy was 0.58 at a log(2) < 6.5. CONCLUSIONS NAT1 mRNA can be used to segregate breast cancer patients into sub-populations that demonstrate different overall survival. Moreover, low NAT1 expression shows a distinct poor response to chemotherapy. Analysis of NAT1 expression may be useful for identifying specific individuals who would benefit from alternative therapy or drug combinations. However, additional information is required to increase the sensitivity of identifying non-responders.
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Affiliation(s)
- Rodney F. Minchin
- Laboratory for Molecular and Cellular Pharmacology, School of Biomedical Sciences, University of Queensland, Brisbane, QLD Australia
| | - Neville J. Butcher
- Laboratory for Molecular and Cellular Pharmacology, School of Biomedical Sciences, University of Queensland, Brisbane, QLD Australia
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Ippolito L, Marini A, Cavallini L, Morandi A, Pietrovito L, Pintus G, Giannoni E, Schrader T, Puhr M, Chiarugi P, Taddei ML. Metabolic shift toward oxidative phosphorylation in docetaxel resistant prostate cancer cells. Oncotarget 2018; 7:61890-61904. [PMID: 27542265 PMCID: PMC5308698 DOI: 10.18632/oncotarget.11301] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 07/27/2016] [Indexed: 01/24/2023] Open
Abstract
Drug resistance of cancer cells is recognized as the primary cause of failure of chemotherapeutic treatment in most human cancers. Growing evidences support the idea that deregulated cellular metabolism is linked to such resistance. Indeed, both components of the glycolytic and mitochondrial pathways are involved in altered metabolism linked to chemoresistance of several cancers. Here we investigated the drug-induced metabolic adaptations able to confer advantages to docetaxel resistant prostate cancer (PCa) cells. We found that docetaxel-resistant PC3 cells (PC3-DR) acquire a pro-invasive behavior undergoing epithelial-to-mesenchymal-transition (EMT) and a decrease of both intracellular ROS and cell growth. Metabolic analyses revealed that PC3-DR cells have a more efficient respiratory phenotype than sensitive cells, involving utilization of glucose, glutamine and lactate by the mitochondrial oxidative phosphorylation (OXPHOS). Consequently, targeting mitochondrial complex I by metformin administration, impairs proliferation and invasiveness of PC3-DR cells without effects on parental cells. Furthermore, stromal fibroblasts, which cause a "reverse Warburg" phenotype in PCa cells, reduce docetaxel toxicity in both sensitive and resistant PCa cells. However, re-expression of miR-205, a microRNA strongly down-regulated in EMT and associated to docetaxel resistance, is able to shift OXPHOS to a Warburg metabolism, thereby resulting in an elevated docetaxel toxicity in PCa cells. Taken together, these findings suggest that resistance to docetaxel induces a shift from Warburg to OXPHOS, mandatory for conferring a survival advantage to resistant cells, suggesting that impairing such metabolic reprogramming could be a successful therapeutic approach.
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Affiliation(s)
- Luigi Ippolito
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Alberto Marini
- Department of Biomedical Sciences, Laboratory of Cell Signaling and Redox Biology, University of Sassari, Sassari, Italy
| | - Lorenzo Cavallini
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Andrea Morandi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Laura Pietrovito
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Gianfranco Pintus
- Department of Biomedical Sciences, Laboratory of Cell Signaling and Redox Biology, University of Sassari, Sassari, Italy.,Department of Biomedical Sciences, College of Health Sciences, Qatar University, Doha, Qatar
| | - Elisa Giannoni
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Thomas Schrader
- Department of Chemistry, University Duisburg-Essen, Essen, Germany
| | - Martin Puhr
- Department of Urology, Medical University of Innsbruck, Innsbruck, Austria
| | - Paola Chiarugi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy.,Tuscany Tumor Institute and "Center for Research, Transfer and High Education DenoTHE", Florence, Italy
| | - Maria Letizia Taddei
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
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Wang Z, Ravula R, Shi L, Song Y, Yeung S, Liu M, Lau B, Hao J, Wang J, Lam CWK, Chow MSS, Huang Y. Overcoming chemoresistance in prostate cancer with Chinese medicine Tripterygium wilfordii via multiple mechanisms. Oncotarget 2018; 7:61246-61261. [PMID: 27487134 PMCID: PMC5308648 DOI: 10.18632/oncotarget.10868] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 07/06/2016] [Indexed: 11/25/2022] Open
Abstract
A leading cause of cancer chemotherapy failure is chemoresistance, which often involves multiple mechanisms. Chinese medicines (CM) usually contain multiple components which could potentially target many mechanisms simultaneously and may offer an advantage over single compounds that target one mechanism at a time. The purpose of this study was to investigate the chemosensitizing effect (CE) of a specific CM, Tripterygium wilfordii (TW), on prostate cancer cells resistant to docetaxel (Dtx) and identify the potential mechanisms. The CE of TW (in combination with Dtx) was evaluated in two Dtx resistant prostate cancer cell lines (PC3-TxR and DU145-TxR) and the efficacy of the combination for resistant PC3-TxR tumor was investigated using a xenograft mouse model. For mechanistic study, the inhibitory effect of TW on P-glycoprotein activity was assessed. In addition, novel gene targets of TW were identified using DNA microarray and quantitative PCR. Results showed that TW induced a CE of 8 and >38 folds in PC3-TxR and DU145-TxR cells, respectively with Dtx IC50 reversed back to that of the sensitive parent cells. An optimum dose of TW+Dtx significantly retarded tumor growth in mice compared to TW or Dtx alone. TW inhibited P-glycoprotein activity and induced a significant gene expression changes in genes related to angiogenesis, cell cycle regulation and differentiation. Our in vitro and in vivo studies demonstrate that TW in combination with Dtx was able to overcome the chemoresistance and suppress resistant prostate tumor growth via multi-mechanisms.
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Affiliation(s)
- Zhijun Wang
- Center for Advancement of Drug Research and Evaluation, College of Pharmacy, Western University of Health Sciences, Pomona, CA, USA
| | - Ranadheer Ravula
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, CA, USA
| | - Leming Shi
- Center for Pharmacogenomics, State Key Laboratory of Genetic Engineering and MOE Key Laboratory of Contemporary Anthropology, Schools of Life Sciences and Pharmacy, Fudan University, Shanghai, China
| | - Yunjie Song
- Center for Pharmacogenomics, State Key Laboratory of Genetic Engineering and MOE Key Laboratory of Contemporary Anthropology, Schools of Life Sciences and Pharmacy, Fudan University, Shanghai, China
| | - Steven Yeung
- Center for Advancement of Drug Research and Evaluation, College of Pharmacy, Western University of Health Sciences, Pomona, CA, USA
| | - Mandy Liu
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, CA, USA
| | - Bernard Lau
- Center for Advancement of Drug Research and Evaluation, College of Pharmacy, Western University of Health Sciences, Pomona, CA, USA
| | - Jijun Hao
- College of Veterinary Medicine, Western University of Health Sciences, Pomona, CA, USA
| | - Jeffrey Wang
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, CA, USA
| | - Christopher Wai Kei Lam
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau
| | - Moses Sing Sum Chow
- Center for Advancement of Drug Research and Evaluation, College of Pharmacy, Western University of Health Sciences, Pomona, CA, USA
| | - Ying Huang
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, CA, USA
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Combination treatment with docetaxel and histone deacetylase inhibitors downregulates androgen receptor signaling in castration-resistant prostate cancer. Invest New Drugs 2017; 36:195-205. [PMID: 29110173 DOI: 10.1007/s10637-017-0529-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Accepted: 10/22/2017] [Indexed: 10/18/2022]
Abstract
Backgrounds Since most patients with castration-resistant prostate cancer (CRPC) develop resistance to its standard therapy docetaxel, many studies have attempted to identify novel combination treatment to meet the large clinical unmet need. In this study, we examined whether histone deacetylase inhibitors (HDACIs) enhanced the effect of docetaxel on AR signaling in CRPC cells harboring AR and its splice variants. Methods HDACIs (vorinostat and CG200745) were tested for their ability to enhance the effects of docetaxel on cell viability and inhibition of AR signaling in CRPC 22Rv1 and VCaP cells by using CellTiter-Glo™ Luminescent cell viability assay, synergy index analysis and Western blotting. The nuclear localization of AR was examined via immunocytochemical staining in 22Rv1 cells and primary tumor cells from a patient with CRPC. Results Combination treatment with HDACIs (vorinostat or CG200745) and docetaxel synergistically inhibited the growth of 22Rv1 and VCaP cells. Consistently, the combination treatment decreased the levels of full-length AR (AR-FL), AR splice variants (AR-Vs), prostate-specific antigen (PSA), and anti-apoptotic Bcl-2 proteins more efficiently compared with docetaxel or vorinostat alone. Moreover, the combination treatment accelerated the acetylation and bundling of tubulin, which significantly inhibited the nuclear accumulation of AR in 22Rv1 cells. The cytoplasmic colocalization of AR-FL and AR-V7 with microtubule bundles increased after combination treatment in primary tumor cells from a patient with CRPC. Conclusions The results suggested that docetaxel, in combination with HDACIs, suppressed the expression and nuclear translocation of AR-FL and AR-Vs and showed synergistic anti-proliferative effect in CRPC cells. This combination therapy may be useful for the treatment of patients with CRPC.
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48
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Gao Q, Zheng J. microRNA-323 upregulation promotes prostate cancer growth and docetaxel resistance by repressing p73. Biomed Pharmacother 2017; 97:528-534. [PMID: 29091904 DOI: 10.1016/j.biopha.2017.10.040] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 10/08/2017] [Accepted: 10/09/2017] [Indexed: 12/27/2022] Open
Abstract
Our previous work has demonstrated that miR-323 enhances tumor angiogenesis in prostate cancer. In the present study, we sought to determine the function of miR-323 in prostate cancer cell growth and response to docetaxel. The effects of miR-323 overexpression on prostate cancer cell proliferation, colony formation, and tumorigenesis were examined. We also investigated the impact of miR-323 knockdown on cell cycle progression and apoptosis. Ectopic expression of miR-323 promoted cell proliferation and colony formation in vitro and xenograft tumor growth in vivo. Depletion of miR-323 arrested PC-3 prostate cancer cells at the G0/G1 phase and caused significant apoptosis, which was coupled with increased expression of p21 and cleavage of caspase-9 and caspase-3 and reduced expression of cyclin D1. Compared to PC-3 parental cells, docetaxel-resistant PC-3-DR cells had 5.6-fold higher levels of miR-323. Overexpression of miR-323 increased the 50% inhibitory concentration (IC50) value for docetaxel in PC-3 cells, while silencing of miR-323 exerted an opposite effect on PC-3-DR cells. Mechanistically, miR-323 repressed the expression of p73 in prostate cancer cells. Knockdown of p73 augmented cell proliferation and colony formation and blunted sensitivity to docetaxel in PC-3 cells. In addition, overexpression of p73 significantly suppressed cell proliferation and induced apoptosis and docetaxel sensitivity in PC-3-DR cells. In conclusion, miR-323 contributes to the aggressive phenotype of prostate cancer cells by targeting p73 and represents a potential therapeutic target for this malignancy.
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Affiliation(s)
- Qiruo Gao
- Department of Urology, Shanghai 10th People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Junhua Zheng
- Department of Urology, Shanghai 10th People's Hospital, Tongji University School of Medicine, Shanghai, China.
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Mohr L, Carceles-Cordon M, Woo J, Cordon-Cardo C, Domingo-Domenech J, Rodriguez-Bravo V. Generation of Prostate Cancer Cell Models of Resistance to the Anti-mitotic Agent Docetaxel. J Vis Exp 2017. [PMID: 28930981 PMCID: PMC5607877 DOI: 10.3791/56327] [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: 01/08/2023] Open
Abstract
Microtubule targeting agents (MTAs) are a mainstay in the treatment of a wide range of tumors. However, acquired resistance to chemotherapeutic drugs is a common mechanism of disease progression and a prognostic-determinant feature of malignant tumors. In prostate cancer (PC), resistance to MTAs such as the taxane Docetaxel dictates treatment failure as well as progression towards lethal stages of disease that are defined by a poor prognosis and high mortality rates. Though studied for decades, the array of mechanisms contributing to acquired resistance are not completely understood, and thus pose a significant limitation to the development of new therapeutic strategies that could benefit patients in these advanced stages of disease. In this protocol, we describe the generation of Docetaxel-resistant prostate cancer cell lines that mimic lethal features of late-stage prostate cancer, and therefore can be used to study the mechanisms by which acquired chemoresistance arises. Despite potential limitations intrinsic to a cell based model, such as the loss of resistance properties over time, the Docetaxel-resistant cell lines produced by this method have been successfully used in recent studies and offer the opportunity to advance our molecular understanding of acquired chemoresistance in lethal prostate cancer.
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Affiliation(s)
- Lisa Mohr
- Department of Pathology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai
| | - Marc Carceles-Cordon
- Department of Pathology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai
| | - Jungreem Woo
- Department of Pathology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai
| | - Carlos Cordon-Cardo
- Department of Pathology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai
| | - Josep Domingo-Domenech
- Department of Pathology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai
| | - Veronica Rodriguez-Bravo
- Department of Pathology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai; Department of Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai;
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50
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Nanoemulsion formulation of a novel taxoid DHA-SBT-1214 inhibits prostate cancer stem cell-induced tumor growth. Cancer Lett 2017; 406:71-80. [PMID: 28803993 DOI: 10.1016/j.canlet.2017.08.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 07/20/2017] [Accepted: 08/03/2017] [Indexed: 02/01/2023]
Abstract
The main aim of this study was to evaluate the therapeutic efficacy of an oil-in-water nanoemulsion formulation encapsulating DHA-SBT-1214, a novel omega-3 fatty acid conjugated taxoid prodrug, against prostate cancer stem cells. Nanoemulsions of DHA-SBT-1214 (NE-DHA-SBT-1214) were prepared and characterized. In vitro delivery efficiency and cytotoxicity of NE-DHA-SBT-1214 was compared with solution formulation in PPT2 cells. In vivo studies included analysis of comparative efficacy of NE-DHA-SBT-1214 with Abraxane® and placebo nanoemulsions as well as post-treatment alternations in clonogenic and sphere-forming capabilities of the tumor cells. Qualitative intracellular uptake studies of dye encapsulated NEs by confocal imaging showed uptake by both monolayer and spheroid cultured PPT2 cells. Treatment of PPT2 cells with NE DHA-SBT-1214 (1nM-1μM for monolayer culture of cells grown on collagen-coated dishes for 48 h) induced complete cell death, showing higher efficacy as compared to the drug solution. This nanoemulsion (10nM-10μM) also showed toxicity in 3D culture of floating spheroids. Weekly intravenous administration of the NE-DHA-SBT-1214 to NOD/SCID mice bearing subcutaneous PPT2 tumor xenografts led to dramatic suppression of tumor growth compared to Abraxane® and placebo nanoemulsion formulation. Viable cells that survived from this in vivo treatment regimen were no longer able to induce floating spheroids and holoclones, whereas control and Abraxane® treated tumor cells induced a large number of both. The results show that NE-DHA-SBT-1214 possesses significant activity against prostate CD133high/CD44+/high tumor-initiating cells both in vitro and in vivo.
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