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Wang J, Lv F, Zhu Y, Lu X, Zhang B. Reversal of the tamoxifen‑resistant breast cancer malignant phenotype by proliferation inhibition with bromosulfonamidine amino‑podophyllotoxin. Oncol Lett 2024; 28:373. [PMID: 38910903 PMCID: PMC11190816 DOI: 10.3892/ol.2024.14506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 04/16/2024] [Indexed: 06/25/2024] Open
Abstract
One of the lignans isolated from plants within the genus Podophyllum is podophyllotoxin (PPT). PPT and its derivatives are pharmacologically active compounds with potential antiproliferative properties in several kinds of tumors. Although these compounds have been used to treat other malignancies, no PPT derivative-based chemotherapeutic agent has been used to cure tamoxifen (TAM)-resistant breast cancer in clinical trials, to the best of our knowledge. Thus, using TAM-resistant breast cancer as a disease model, the present study assessed the effects of a recently synthesized PPT derivative, bromosulfonamidine amino-PPT (BSAPPT), on TAM-resistant breast cancer. Using the tamoxifen-resistant breast cancer cell model (MCF-7/TAMR) in vitro, Cell Counting Kit-8 and colony formation assays were adopted to evaluate the effect of BSAPPT on cell proliferation. Cell apoptosis and cell cycle assays were used to assess the influence of BSAPPT on cell apoptosis and the cell cycle in MCF-7/TAMR. The targets of the potential mechanism of action were analyzed by RT-qPCR and western blotting. The present study demonstrated that BSAPPT suppressed MCF-7/TAMR cell proliferation in a dose-dependent manner. By modulating the level of expression of genes linked to both apoptosis and the cell cycle, BSAPPT triggered MCF-7/TAMR cells to undergo apoptosis and prevented them from entering the cell cycle. Consequently, BSAPPT blocked these cells from proliferating, thereby halting the malignant advancement of TAM-resistant breast cancer. Therefore, these findings indicate that new therapeutic agents involving BSAPPT may be developed to facilitate the treatment of TAM-resistant breast cancer.
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Affiliation(s)
- Jiayi Wang
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
- Medical Laboratory (Guangdong), Dongguan Eighth People's Hospital, Dongguan, Guangdong 523320, P.R. China
- Department of Genetics, Key Laboratory for Children's Genetics and Infectious Diseases of Dongguan, Dongguan, Guangdong 523320, P.R. China
| | - Fen Lv
- Medical Laboratory (Guangdong), Dongguan Eighth People's Hospital, Dongguan, Guangdong 523320, P.R. China
- Department of Genetics, Key Laboratory for Children's Genetics and Infectious Diseases of Dongguan, Dongguan, Guangdong 523320, P.R. China
| | - Yinghua Zhu
- Medical Laboratory (Guangdong), Dongguan Eighth People's Hospital, Dongguan, Guangdong 523320, P.R. China
- Department of Genetics, Key Laboratory for Children's Genetics and Infectious Diseases of Dongguan, Dongguan, Guangdong 523320, P.R. China
| | - Xiaomei Lu
- Medical Laboratory (Guangdong), Dongguan Eighth People's Hospital, Dongguan, Guangdong 523320, P.R. China
- Department of Genetics, Key Laboratory for Children's Genetics and Infectious Diseases of Dongguan, Dongguan, Guangdong 523320, P.R. China
| | - Bao Zhang
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
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Chaudhary P, Yadav K, Lee HJ, Kang KW, Mo J, Kim JA. siRNA treatment targeting integrin α11 overexpressed via EZH2-driven axis inhibits drug-resistant breast cancer progression. Breast Cancer Res 2024; 26:72. [PMID: 38664825 PMCID: PMC11046805 DOI: 10.1186/s13058-024-01827-4] [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: 02/16/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Breast cancer, the most prevalent cancer in women worldwide, faces treatment challenges due to drug resistance, posing a serious threat to patient survival. The present study aimed to identify the key molecules that drive drug resistance and aggressiveness in breast cancer cells and validate them as therapeutic targets. METHODS Transcriptome microarray and analysis using PANTHER pathway and StemChecker were performed to identify the most significantly expressed genes in tamoxifen-resistant and adriamycin-resistant MCF-7 breast cancer cells. Clinical relevance of the key genes was determined using Kaplan-Meier survival analyses on The Cancer Genome Atlas dataset of breast cancer patients. Gene overexpression/knockdown, spheroid formation, flow cytometric analysis, chromatin immunoprecipitation, immunocytochemistry, wound healing/transwell migration assays, and cancer stem cell transcription factor activation profiling array were used to elucidate the regulatory mechanism of integrin α11 expression. Tumour-bearing xenograft models were used to demonstrate integrin α11 is a potential therapeutic target. RESULTS Integrin α11 was consistently upregulated in drug-resistant breast cancer cells, and its silencing inhibited cancer stem cells (CSCs) and epithelial-mesenchymal transition (EMT) while restoring sensitivity to anticancer drugs. HIF1α, GLI-1, and EZH2 contributed the most to the regulation of integrin α11 and EZH2 expression, with EZH2 being more necessary for EZH2 autoinduction than HIF1α and GLI-1. Additionally, unlike HIF1α or EZH2, GLI-1 was the sole transcription factor activated by integrin-linked focal adhesion kinase, indicating GLI-1 as a key driver of the EZH2-integrin α11 axis operating for cancer stem cell survival and EMT. Kaplan-Meier survival analysis using The Cancer Genome Atlas (TCGA) dataset also revealed both EZH2 and integrin α11 could be strong prognostic factors of relapse-free and overall survival in breast cancer patients. However, the superior efficacy of integrin α11 siRNA therapy over EZH2 siRNA treatment was demonstrated by enhanced inhibition of tumour growth and prolonged survival in murine models bearing tumours. CONCLUSION Our findings elucidate that integrin α11 is upregulated by EZH2, forming a positive feedback circuit involving FAK-GLI-1 and contributing to drug resistance, cancer stem cell survival and EMT. Taken together, the results suggest integrin α11 as a promising prognostic marker and a powerful therapeutic target for drug-resistant breast cancer.
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Affiliation(s)
- Prakash Chaudhary
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Kiran Yadav
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Ho Jin Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Keon Wook Kang
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jongseo Mo
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Jung-Ae Kim
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
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Chao TC, Tsai YF, Liu CY, Lien PJ, Lin YS, Feng CJ, Chen YJ, Lai JI, Hsu CY, Lynn JJ, Huang CC, Tseng LM. Prevalence of PIK3CA mutations in Taiwanese patients with breast cancer: a retrospective next-generation sequencing database analysis. Front Oncol 2023; 13:1192946. [PMID: 37655108 PMCID: PMC10466395 DOI: 10.3389/fonc.2023.1192946] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/25/2023] [Indexed: 09/02/2023] Open
Abstract
Background Breast cancer is the most common cancer type that affects women. In hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) advanced breast cancer (ABC), phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA) is the most frequently mutated gene associated with poor prognosis. This study evaluated the frequency of PIK3CA mutations in the Taiwanese breast cancer population. Methodology This is a retrospective study; patient data were collected for 2 years from a next-generation sequencing database linked to electronic health records (EHRs). The primary endpoint was the regional prevalence of PIK3CA mutation. The secondary endpoints were to decipher the mutation types across breast cancer subtype, menopausal status, and time to treatment failure after everolimus (an mTOR inhibitor) or cyclin-dependent kinase 4/6 (CDK4/6) inhibitor treatment. Results PIK3CA mutations were identified in 278 of 728 patients (38%). PIK3CA mutations were reported in 43% of patients with HR-/HER2+ subtype and 42% of patients with HR+/HER2- postmenopausal status. A lower prevalence of PIK3CA mutations was observed in triple-negative (27%) and HR+/HER2- premenopausal patients (29%). The most common mutation was at exon 20 (H1047R mutation, 41.6%), followed by exon 9 (E545K mutation, 18.9% and E542K mutation, 10.3%). Among patients treated with CDK4/6 inhibitors, the median time to treatment failure was 12 months (95% CI: 7-21 months) in the PIK3CA mutation cohort and 16 months (95% CI: 11-23 months) in the PIK3CA wild-type cohort, whereas patients receiving an mTOR inhibitor reported a median time to treatment failure of 20.5 months (95% CI: 8-33 months) in the PIK3CA mutation cohort and 6 months (95% CI: 2-9 months) in the PIK3CA wild-type cohort. Conclusion A high frequency of PIK3CA mutations was detected in Taiwanese patients with breast cancer, which was consistent with previous studies. Early detection of PIK3CA mutations might influence therapeutic decisions, leading to better treatment outcomes.
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Affiliation(s)
- Ta-Chung Chao
- Comprehensive Breast Health Center, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, College of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
- Division of Cancer Prevention, Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yi-Fang Tsai
- Comprehensive Breast Health Center, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, College of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chun-Yu Liu
- Comprehensive Breast Health Center, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, College of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
- Division of Transfusion Medicine, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Pei-Ju Lien
- Comprehensive Breast Health Center, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yen-Shu Lin
- Comprehensive Breast Health Center, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chin-Jung Feng
- Comprehensive Breast Health Center, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yen-Jen Chen
- Comprehensive Breast Health Center, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, College of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Jiun-I. Lai
- Comprehensive Breast Health Center, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Medical Oncology, Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
- Institute of Clinical Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chih-Yi Hsu
- School of Medicine, College of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Jiun Jen Lynn
- Medical Affairs, Novartis (Taiwan) Co. Ltd, Taipei, Taiwan
| | - Chi-Cheng Huang
- Comprehensive Breast Health Center, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Ling-Ming Tseng
- Comprehensive Breast Health Center, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, College of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
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Zhu K, Wu Y, He P, Fan Y, Zhong X, Zheng H, Luo T. PI3K/AKT/mTOR-Targeted Therapy for Breast Cancer. Cells 2022; 11:2508. [PMID: 36010585 PMCID: PMC9406657 DOI: 10.3390/cells11162508] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/06/2022] [Accepted: 08/09/2022] [Indexed: 12/25/2022] Open
Abstract
Phosphatidylinositol 3-kinase (PI3K), protein kinase B (PKB/AKT) and mechanistic target of rapamycin (mTOR) (PAM) pathways play important roles in breast tumorigenesis and confer worse prognosis in breast cancer patients. The inhibitors targeting three key nodes of these pathways, PI3K, AKT and mTOR, are continuously developed. For breast cancer patients to truly benefit from PAM pathway inhibitors, it is necessary to clarify the frequency and mechanism of abnormal alterations in the PAM pathway in different breast cancer subtypes, and further explore reliable biomarkers to identify the appropriate population for precision therapy. Some PI3K and mTOR inhibitors have been approved by regulatory authorities for the treatment of specific breast cancer patient populations, and many new-generation PI3K/mTOR inhibitors and AKT isoform inhibitors have also been shown to have good prospects for cancer therapy. This review summarizes the changes in the PAM signaling pathway in different subtypes of breast cancer, and the latest research progress about the biomarkers and clinical application of PAM-targeted inhibitors.
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Affiliation(s)
- Kunrui Zhu
- Breast Disease Center, Cancer Center, West China Hospital, Sichuan University, Chengdu 610000, China
- Multi-Omics Laboratory of Breast Diseases, State Key Laboratory of Biotherapy, National Collaborative, Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610000, China
| | - Yanqi Wu
- Breast Disease Center, Cancer Center, West China Hospital, Sichuan University, Chengdu 610000, China
| | - Ping He
- Breast Disease Center, Cancer Center, West China Hospital, Sichuan University, Chengdu 610000, China
- Multi-Omics Laboratory of Breast Diseases, State Key Laboratory of Biotherapy, National Collaborative, Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610000, China
| | - Yu Fan
- Multi-Omics Laboratory of Breast Diseases, State Key Laboratory of Biotherapy, National Collaborative, Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610000, China
| | - Xiaorong Zhong
- Breast Disease Center, Cancer Center, West China Hospital, Sichuan University, Chengdu 610000, China
- Multi-Omics Laboratory of Breast Diseases, State Key Laboratory of Biotherapy, National Collaborative, Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610000, China
| | - Hong Zheng
- Breast Disease Center, Cancer Center, West China Hospital, Sichuan University, Chengdu 610000, China
- Multi-Omics Laboratory of Breast Diseases, State Key Laboratory of Biotherapy, National Collaborative, Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610000, China
| | - Ting Luo
- Breast Disease Center, Cancer Center, West China Hospital, Sichuan University, Chengdu 610000, China
- Multi-Omics Laboratory of Breast Diseases, State Key Laboratory of Biotherapy, National Collaborative, Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610000, China
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Garufi G, Carbognin L, Orlandi A, Palazzo A, Tortora G, Bria E. The Therapeutic Challenge of Disseminated Bone Marrow Metastasis From HR-Positive HER2-Negative Breast Cancer: Case Report and Review of the Literature. Front Oncol 2021; 11:651723. [PMID: 34692469 PMCID: PMC8529000 DOI: 10.3389/fonc.2021.651723] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 09/10/2021] [Indexed: 01/15/2023] Open
Abstract
The efficacy and safety of the combination of endocrine therapy (ET) and CDK4/6 inhibitors for patients with hormone receptor (HR)-positive HER2-negative metastatic breast cancer (BC) presenting with visceral crisis or life-threatening conditions represent a challenge for daily clinical practice. Indeed, the peculiarity of this clinical presentation (signs and symptoms of rapidly progressive disease) does not allow to include such patients in a trial aiming for drug approval. On the basis of the scientific evidence available so far, chemotherapy represents the standard of care according to guidelines, on the basis of the more rapid activity in comparison with ET alone. Besides, the combination of ET and CDK4/6 inhibitors have demonstrated in clinical trials to have clinically impactful activity in a short time, thus suggesting a potential role in advanced tumors that require rapid response. Herein, we report the clinical history of a young woman with HR-positive HER2-negative metastatic BC and a pancytopenia due to carcinomatosis of the bone marrow receiving letrozole and leuprorelin plus the CDK4/6 inhibitor palbociclib, who significantly derived clinical benefit from treatment. Considering that these peculiar cases are excluded from clinical trials, the estimation of the magnitude of the benefit of the newer ET combination may potentially represent a practical question for large case series and real-world studies.
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Affiliation(s)
- Giovanna Garufi
- Oncologia Medica, Fondazione Policlinico Universitario Agostino Gemelli Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Roma, Italy.,Università Cattolica Del Sacro Cuore, Roma, Italy
| | - Luisa Carbognin
- Division of Gynecologic Oncology, Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
| | - Armando Orlandi
- Oncologia Medica, Fondazione Policlinico Universitario Agostino Gemelli Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Roma, Italy
| | - Antonella Palazzo
- Oncologia Medica, Fondazione Policlinico Universitario Agostino Gemelli Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Roma, Italy
| | - Giampaolo Tortora
- Oncologia Medica, Fondazione Policlinico Universitario Agostino Gemelli Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Roma, Italy.,Università Cattolica Del Sacro Cuore, Roma, Italy
| | - Emilio Bria
- Oncologia Medica, Fondazione Policlinico Universitario Agostino Gemelli Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Roma, Italy.,Università Cattolica Del Sacro Cuore, Roma, Italy
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Saravanan R, Raja K, Shanthi D. GC-MS Analysis, Molecular Docking and Pharmacokinetic Properties of Phytocompounds from Solanum torvum Unripe Fruits and Its Effect on Breast Cancer Target Protein. Appl Biochem Biotechnol 2021; 194:529-555. [PMID: 34643844 PMCID: PMC8760204 DOI: 10.1007/s12010-021-03698-3] [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] [Received: 06/28/2021] [Accepted: 10/04/2021] [Indexed: 01/22/2023]
Abstract
This study was designed to identify phytocompounds from the aqueous extract of Solanum torvum unripe fruits using GC–MS analysis against breast cancer. For this, the identified phytocompounds were subjected to perform molecular docking studies to find the effects on breast cancer target protein. Pharmacokinetic properties were also tested for the identified phytocompounds to evaluate the ADMET properties. Molecular docking studies were done using docking software PyRx, and pharmacokinetic properties of phytocompounds were evaluated using SwissADME. From the results, ten best compounds were identified from GC–MS analysis against breast cancer target protein. Of which, three compounds showed very good binding affinity with breast cancer target protein. They are ergost-25-ene-3,6-dione,5,12-dihydroxy-,(5.alpha.,12.beta.) (− 7.3 kcal/mol), aspidospermidin-17-ol,1-acetyl-16-methoxy (− 6.7 kcal/mol) and 2-(3,4-dichlorophenyl)-4-[[2-[1-methyl-2-pyrrolidinyl]ethyl amino]-6-[trichloromethyl]-s-triazine (− 6.7 kcal/mol). Further, docking study was performed for the synthetic drug doxorubicin to compare the efficiency of phytocompounds. The binding affinity of ergost-25-ene-3,6-dione,5,12-dihydroxy-,(5.alpha.,12.beta.) is higher than the synthetic drug doxorubicin (− 7.2 kcal/mol), and the binding affinity of other compounds is also very near to the drug. Hence, the present study concludes that the phytocompounds from the aqueous extract of Solanum torvum unripe fruits have the potential ability to treat breast cancer.
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Affiliation(s)
- R Saravanan
- Post Graduate and Research Department of Zoology, Dr. Ambedkar Government Arts College, Vyasarpadi, Chennai, 600 039, Tamil Nadu, India.
| | - K Raja
- Post Graduate and Research Department of Zoology, Dr. Ambedkar Government Arts College, Vyasarpadi, Chennai, 600 039, Tamil Nadu, India
| | - D Shanthi
- Post Graduate and Research Department of Zoology, Dr. Ambedkar Government Arts College, Vyasarpadi, Chennai, 600 039, Tamil Nadu, India
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Safety and impact of dose reductions on efficacy in the randomised MONALEESA-2, -3 and -7 trials in hormone receptor-positive, HER2-negative advanced breast cancer. Br J Cancer 2021; 125:679-686. [PMID: 34158598 PMCID: PMC8405616 DOI: 10.1038/s41416-021-01415-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 03/22/2021] [Accepted: 04/22/2021] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND This pooled analysis of MONALEESA trials evaluated the safety of ribociclib plus endocrine therapy (RIB + ET) with a focus on dose reductions in first-line patients. METHODS In the dose reduction analysis, data were pooled from MONALEESA-2 (all patients), MONALEESA-3 (patients receiving treatment as first-line ET) and MONALEESA-7 (patients receiving combination therapy with an NSAI as initial ET). Efficacy was analysed by ribociclib relative dose intensity (DI). Safety was analysed in all patients in the trials (except those receiving tamoxifen in MONALEESA-7) and those with/without ≥1 ribociclib dose reduction. RESULTS Of 818 women who received first-line RIB + ET, 41.8% required ≥1 dose reduction due to AEs (most commonly, neutropenia). Median RIB relative DI in patients without and with dose reductions was 99.3% and 65.6% in MONALEESA-2, 98.4% and 67.8% in MONALEESA-3 and 98·0% and 66·3% in MONALEESA-7. Median PFS was 24.8, 24.9 and 29.6 months for patients who received ≤71% (30th percentile), 72-96% (60th percentile) and 97-100% (90th percentile) RIB relative DI, respectively. No new safety signals emerged in the pooled safety analysis. CONCLUSIONS This analysis provides reassuring data showing that the clinical benefit of RIB is preserved when dose modifications are undertaken to manage AEs. TRIAL REGISTRATION MONALEESA-2 (NCT01958021) first posted October 8, 2013; MONALEESA-3 (NCT02422615) first posted April 21, 2015; MONALEESA-7 (NCT02278120) first posted October 29, 2014.
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8
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Kim H, Park SH, Lee J, Sung GJ, Song JH, Kwak S, Jeong JH, Kong MJ, Hwang JT, Choi HK, Choi KC. TNFα Enhances Tamoxifen Sensitivity through Dissociation of ERα-p53-NCOR1 Complexes in ERα-Positive Breast Cancer. Cancers (Basel) 2021; 13:cancers13112601. [PMID: 34073371 PMCID: PMC8199199 DOI: 10.3390/cancers13112601] [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] [Received: 04/21/2021] [Revised: 05/10/2021] [Accepted: 05/19/2021] [Indexed: 11/23/2022] Open
Abstract
Simple Summary Tamoxifen has been clinically applied as a central chemotherapeutic agent for treatment of estrogen receptor (ER)-positive breast cancer. However, many ER-positive breast cancer patients with the high ER level demonstrate intrinsic resistance against the tamoxifen therapy. The aim of our study was to find an effective approach to enhance tamoxifen sensitivity. We found that tumor necrosis factor α (TNFα) has a potential to overcome tamoxifen resistance through disruption of nuclear receptor corepressor 1 (NCOR1)-p53-ERα complexes in ER-positive MCF7 xenograft mice. NCOR1 knock-down with TNFα treatment induced ERα destabilization and increased the occupancy of p53 at the p21 promoter. Finally, we confirmed the combinational application with tamoxifen, TNFα and short-hairpin NCOR1 showed the enhanced suppressive effect of tumor growth in MCF xenograft mice compared to single tamoxifen treatment. These results provide a possibility for application of NCOR1 as a putative therapeutic target to overcome tamoxifen resistance in ERα-positive breast cancer. Abstract Tamoxifen is widely used as a medication for estrogen receptor α (ERα)-positive breast cancer, despite the ~50% incidence of tamoxifen resistance. To overcome such resistance, combining tamoxifen with other agents is considered an effective approach. Here, through in vitro studies with ER-positive MCF7 cells and ER-negative MDA-MB-231 cells, validated by the use of xenograft mice, we investigated the potential of tumor necrosis factor α (TNFα) to enhance tamoxifen sensitivity and identified NCOR1 as a key downstream regulator. TNFα specifically degraded nuclear receptor corepressor 1 (NCOR1) in MCF7 cells. Moreover, knockdown of NCOR1, similar to TNFα treatment, suppressed cancer cell growth and promoted apoptosis only in MCF7 cells and MCF7 xenograft mice through the stabilization of p53, a tumor suppressor protein. Interestingly, NCOR1 knockdown with TNFα treatment increased the occupancy of p53 at the p21 promoter, while decreasing that of ERα. Notably, NCOR1 formed a complex with p53 and ERα, which was disrupted by TNFα. Finally, combinatorial treatment with tamoxifen, TNFα and short–hairpin (sh)-NCOR1 resulted in enhanced suppression of tumor growth in MCF7 xenograft mice compared to single tamoxifen treatment. In conclusion, TNFα promoted tamoxifen sensitivity through the dissociation of the ERα-p53-NCOR1 complex, pointing at NCOR1 as a putative therapeutic target for overcoming tamoxifen resistance in ERα-positive breast cancer.
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Affiliation(s)
- Hyunhee Kim
- Asan Medical Center, Department of Biomedical Sciences, AMIST, University of Ulsan College of Medicine, Seoul 05505, Korea; (H.K.); (S.-H.P.); (J.-H.S.); (S.K.); (J.-H.J.); (M.-J.K.)
| | - Seung-Ho Park
- Asan Medical Center, Department of Biomedical Sciences, AMIST, University of Ulsan College of Medicine, Seoul 05505, Korea; (H.K.); (S.-H.P.); (J.-H.S.); (S.K.); (J.-H.J.); (M.-J.K.)
| | - Jangho Lee
- Korea Food Research Institute, Wanju-gun 55365, Korea; (J.L.); (J.-T.H.)
| | - Gi-Jun Sung
- Department of Obstetriccs, Gynecology and Reproductive Biology, Michigan State University, East Lansing, MI 49534, USA;
| | - Ji-Hye Song
- Asan Medical Center, Department of Biomedical Sciences, AMIST, University of Ulsan College of Medicine, Seoul 05505, Korea; (H.K.); (S.-H.P.); (J.-H.S.); (S.K.); (J.-H.J.); (M.-J.K.)
| | - Sungmin Kwak
- Asan Medical Center, Department of Biomedical Sciences, AMIST, University of Ulsan College of Medicine, Seoul 05505, Korea; (H.K.); (S.-H.P.); (J.-H.S.); (S.K.); (J.-H.J.); (M.-J.K.)
| | - Ji-Hoon Jeong
- Asan Medical Center, Department of Biomedical Sciences, AMIST, University of Ulsan College of Medicine, Seoul 05505, Korea; (H.K.); (S.-H.P.); (J.-H.S.); (S.K.); (J.-H.J.); (M.-J.K.)
| | - Min-Jeong Kong
- Asan Medical Center, Department of Biomedical Sciences, AMIST, University of Ulsan College of Medicine, Seoul 05505, Korea; (H.K.); (S.-H.P.); (J.-H.S.); (S.K.); (J.-H.J.); (M.-J.K.)
| | - Jin-Taek Hwang
- Korea Food Research Institute, Wanju-gun 55365, Korea; (J.L.); (J.-T.H.)
- Department of Food Biotechnology, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Hyo-Kyoung Choi
- Korea Food Research Institute, Wanju-gun 55365, Korea; (J.L.); (J.-T.H.)
- Correspondence: (H.-K.C.); (K.-C.C.); Tel.: +82-63-219-9421 (H.-K.C.); +82-2-3010-2087 (K.-C.C.)
| | - Kyung-Chul Choi
- Asan Medical Center, Department of Biomedical Sciences, AMIST, University of Ulsan College of Medicine, Seoul 05505, Korea; (H.K.); (S.-H.P.); (J.-H.S.); (S.K.); (J.-H.J.); (M.-J.K.)
- Correspondence: (H.-K.C.); (K.-C.C.); Tel.: +82-63-219-9421 (H.-K.C.); +82-2-3010-2087 (K.-C.C.)
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9
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Lourenço de Freitas N, Deberaldini MG, Gomes D, Pavan AR, Sousa Â, Dos Santos JL, Soares CP. Histone Deacetylase Inhibitors as Therapeutic Interventions on Cervical Cancer Induced by Human Papillomavirus. Front Cell Dev Biol 2021; 8:592868. [PMID: 33634093 PMCID: PMC7901962 DOI: 10.3389/fcell.2020.592868] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 12/15/2020] [Indexed: 12/11/2022] Open
Abstract
The role of epigenetic modifications on the carcinogenesis process has received a lot of attention in the last years. Among those, histone acetylation is a process regulated by histone deacetylases (HDAC) and histone acetyltransferases (HAT), and it plays an important role in epigenetic regulation, allowing the control of the gene expression. HDAC inhibitors (HDACi) induce cancer cell cycle arrest, differentiation, and cell death and reduce angiogenesis and other cellular events. Human papillomaviruses (HPVs) are small, non-enveloped double-stranded DNA viruses. They are major human carcinogens, being intricately linked to the development of cancer in 4.5% of the patients diagnosed with cancer worldwide. Long-term infection of high-risk (HR) HPV types, mainly HPV16 and HPV18, is one of the major risk factors responsible for promoting cervical cancer development. In vitro and in vivo assays have demonstrated that HDACi could be a promising therapy to HPV-related cervical cancer. Regardless of some controversial studies, the therapy with HDACi could target several cellular targets which HR-HPV oncoproteins could be able to deregulate. This review article describes the role of HDACi as a possible intervention in cervical cancer treatment induced by HPV, highlighting the main advances reached in the last years and providing insights for further investigations regarding those agents against cervical cancer.
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Affiliation(s)
- Natália Lourenço de Freitas
- Department of Clinical Analysis, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, Brazil
| | - Maria Gabriela Deberaldini
- Drugs and Medicines Department, School of Pharmaceutical Science, São Paulo State University (UNESP), Araraquara, Brazil.,Institute of Chemistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Diana Gomes
- CICS-UBI - Health Science Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Aline Renata Pavan
- Drugs and Medicines Department, School of Pharmaceutical Science, São Paulo State University (UNESP), Araraquara, Brazil.,Institute of Chemistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Ângela Sousa
- CICS-UBI - Health Science Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Jean Leandro Dos Santos
- Drugs and Medicines Department, School of Pharmaceutical Science, São Paulo State University (UNESP), Araraquara, Brazil
| | - Christiane P Soares
- Department of Clinical Analysis, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, Brazil
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10
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Zhang X, Zhang J, Zhang H, Liu Y, Yin L, Liu X, Li X, Yu X, Yao J, Zhang Z, Kong C. Exploring the five different genes associated with PKCα in bladder cancer based on gene expression microarray. J Cell Mol Med 2021; 25:1759-1770. [PMID: 33452764 PMCID: PMC7875937 DOI: 10.1111/jcmm.16284] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/08/2020] [Accepted: 12/30/2020] [Indexed: 12/16/2022] Open
Abstract
Much progress has been made in understanding the mechanism of bladder cancer (BC) progression. Protein kinase C‐α (PKCα) is overexpressed in many kinds of cancers. Additionally, PKCα is considered an oncogene that regulates proliferation, invasion, migration, apoptosis and cell cycle in multiple cancers. However, the mechanism underlying how these cellular processes are regulated by PKCα remains unknown. In the present study, we used PKCα siRNA to knock down PKCα gene expression and found that down‐regulation of PKCα could significantly inhibit cell proliferation, migration and invasion and induce apoptosis and G1/S cell cycle arrest in vitro. Overexpression of PKCα promotes tumour growth in vivo. We applied cDNA microarray technology to detect the differential gene expression in J82 cells with PKCα knockdown and found that five key genes (BIRC2, BIRC3, CDK4, TRAF1 and BMP4) were involved in proliferation and apoptosis according to GO analysis and pathway analyses. Correlation analysis revealed a moderate positive correlation between PKCα expression and the expression of five downstream genes. BIRC2 and BIRC3 inhibit apoptosis, whereas CDK4, TRAF1 and BMP4 promote proliferation. Essentially, all five of these target genes participated in proliferation, and apoptosis was regulated by PKCα via the NF‐kB signalling pathway.
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Affiliation(s)
- Xiaotong Zhang
- Department of Urology, The First Hospital of China Medical University, Shenyang, China
| | - Jiarun Zhang
- Department of Urology, The First Hospital of China Medical University, Shenyang, China
| | - Hao Zhang
- Department of Urology, The First Hospital of China Medical University, Shenyang, China
| | - Yang Liu
- Department of Urology, The First Hospital of China Medical University, Shenyang, China
| | - Lei Yin
- Department of Urology, The First Hospital of China Medical University, Shenyang, China
| | - Xi Liu
- Department of Urology, The First Hospital of China Medical University, Shenyang, China
| | - Xuejie Li
- Department of Urology, The First Hospital of China Medical University, Shenyang, China
| | - Xiuyue Yu
- Department of Urology, The First Hospital of China Medical University, Shenyang, China
| | - Jinlong Yao
- Department of Urology, The First Hospital of China Medical University, Shenyang, China
| | - Zhe Zhang
- Department of Urology, The First Hospital of China Medical University, Shenyang, China
| | - Chuize Kong
- Department of Urology, The First Hospital of China Medical University, Shenyang, China
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11
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Liu F, Wu H. Identification of Prognostic Biomarkers and Molecular Targets Among JAK Family in Breast Cancer. J Inflamm Res 2021; 14:97-114. [PMID: 33469338 PMCID: PMC7813467 DOI: 10.2147/jir.s284889] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 12/08/2020] [Indexed: 12/14/2022] Open
Abstract
Background Janus kinases (JAKs) are a family of non-receptor tyrosine kinases involved in multiple malignancies. However, clinical values of JAKs as prognostic markers and potential mechanism as molecular targets in breast invasive carcinoma (BC) are not completely clarified. Methodology TIMER, UALCAN and GEPIA were used to assess the expression and methylation levels of JAKs in BC. Kaplan–Meier Plotter, bc-GenExMiner, SurvExpress, TRGAted, MethSurv, and SurvivalMeth were used to assess the multilevel prognostic significance of JAKs in breast cancer patients. And cBioPortal, TIMER, STRING, GeneMANIA, NetworkAnalysis, LinkedOmics, DAVID 6.8, and Metascape were applied for multilayer networks and functional enrichment analyses. Correlations between immune cell infiltrates/their gene markers and JAKs were evaluated by TIMER. Results We first explored the expression and methylation level of JAKs in breast cancer and found significantly reduced JAK1 and JAK2 expression at mRNA and protein levels, significantly higher JAK3 protein expression, and significantly increased TYK2 expression at mRNA level but decreased at protein level. In addition, hypermethylation of JAK3 and TYK2 and hypomethylation of JAK1 were found in tumor samples. In terms of prognostic values of JAKs in BC patients, low transcriptional levels of JAK1, JAK2, JAK3, and TYK2 indicated worse OS/DMFS/PPS/RFS/DFS, inferior DFS, worse RFS, and shorter OS/DMFS/RFS, respectively. The mRNA signature analysis showed that high-risk group had unfavorable OS/RFS/MFS. Low JAK2 protein level indicated unfavorable DSS/PFS in BC patients. Five CpGs of JAK1, four CpGs of JAK2, 20 CpGs of JAK3, and 13 CpGs of TYK2 were significantly associated with prognosis in BC patients. The DNA methylation signature analysis also suggested worse prognosis in the high-risk group. For potential biological roles of JAKs, interaction analyses, functional enrichment analyses for biological process, cellular component, molecular function, and KEGG pathway analyses of JAKs and their neighbor genes in BC were conducted. Kinase targets, gene–miRNA interactions, and transcription factor–gene interactions of JAKs were also identified. Furthermore, JAKs were found to be significantly related to immune infiltrates as well as the expression levels of multiple immune markers in BC. Conclusion JAKs showed multilevel prognostic value and important biological roles in BC. They might serve as promising prognostic markers and possible targets in breast cancer.
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Affiliation(s)
- Fangteng Liu
- Department of Breast Surgery, The Third Hospital of Nanchang, Nanchang 330009, Jiangxi, People's Republic of China.,Faculty of Medicine, University of Munich, Munich 80336, Germany
| | - Hengyu Wu
- Department of Breast Surgery, The Third Hospital of Nanchang, Nanchang 330009, Jiangxi, People's Republic of China
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12
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Yao J, Deng K, Huang J, Zeng R, Zuo J. Progress in the Understanding of the Mechanism of Tamoxifen Resistance in Breast Cancer. Front Pharmacol 2020; 11:592912. [PMID: 33362547 PMCID: PMC7758911 DOI: 10.3389/fphar.2020.592912] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 10/16/2020] [Indexed: 12/24/2022] Open
Abstract
Tamoxifen is a drug commonly used in the treatment of breast cancer, especially for postmenopausal patients. However, its efficacy is limited by the development of drug resistance. Downregulation of estrogen receptor alpha (ERα) is an important mechanism of tamoxifen resistance. In recent years, with progress in research into the protective autophagy of drug-resistant cells and cell cycle regulators, major breakthroughs have been made in research on tamoxifen resistance. For a better understanding of the mechanism of tamoxifen resistance, protective autophagy, cell cycle regulators, and some transcription factors and enzymes regulating the expression of the estrogen receptor are summarized in this review. In addition, recent progress in reducing resistance to tamoxifen is reviewed. Finally, we discuss the possible research directions into tamoxifen resistance in the future to provide assistance for the clinical treatment of breast cancer.
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Affiliation(s)
- Jingwei Yao
- Nanhua Hospital Affiliated to University of South China, Hengyang, China.,The Third Affiliated Hospital of University of South China, Hengyang, China
| | - Kun Deng
- Transformation Research Lab, Hengyang Medical School, University of South China, Hengyang, China
| | - Jialu Huang
- Transformation Research Lab, Hengyang Medical School, University of South China, Hengyang, China
| | - Ruimin Zeng
- Nanhua Hospital Affiliated to University of South China, Hengyang, China
| | - Jianhong Zuo
- Nanhua Hospital Affiliated to University of South China, Hengyang, China.,Transformation Research Lab, Hengyang Medical School, University of South China, Hengyang, China.,The Third Affiliated Hospital of University of South China, Hengyang, China
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13
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Sirico M, Bernocchi O, Sobhani N, Giudici F, Corona SP, Vernieri C, Nichetti F, Cappelletti MR, Milani M, Strina C, Cervoni V, Barbieri G, Ziglioli N, Dester M, Bianchi GV, De Braud F, Generali D. Early Changes of the Standardized Uptake Values (SUV max) Predict the Efficacy of Everolimus-Exemestane in Patients with Hormone Receptor-Positive Metastatic Breast Cancer. Cancers (Basel) 2020; 12:cancers12113314. [PMID: 33182575 PMCID: PMC7697290 DOI: 10.3390/cancers12113314] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/05/2020] [Accepted: 11/07/2020] [Indexed: 12/17/2022] Open
Abstract
Background: The mTORC1 inhibitor everolimus has been approved in combination with the aromatase inhibitor exemestane for the treatment of hormone receptor-positive (HR+) human epidermal growth factor receptor 2-negative (HER2-) metastatic breast cancer (HR+ mBC) progressing on prior therapy with a non-steroidal aromatase inhibitor. To date, no predictive biomarkers of tumor sensitivity/resistance for everolimus-based treatments have been identified. We hypothesized that precocious changes in the Standardized Uptake Volume (∆SUV%), as assessed by 18F-Fluorodeoxyglucosepositron-emission tomography (18F-FDG PET/CT), may be a marker of everolimus efficacy. Methods: This was a retrospective study including 31 HR+ HER2- patients treated with everolimus and exemestane in two Italian centers between 2013 and 2018. The objective of the study was to investigate ∆SUV% as a predictive marker of everolimus antitumor efficacy. 18F-FDG PET/CT scans were performed at baseline and after three months of treatment. Patients were defined as long responders (LRs) if disease progression occurred at least 10 months after treatment initiation and long survivors (LSs) if death occurred later than 36 months after starting therapy. ROC analysis was used to determine the optimal cut-off values of ∆SUV% to distinguish LRs from non-LRs and LSs from non-LSs. Progression-free survival (PFS) and overall survival (OS) were estimated by Kaplan-Meier method. Results: The SUVmax values decreased significantly from baseline to 3 months after therapy (p = 0.003). Dynamic changes of SUVmax (Delta SUV) had a higher accuracy in discriminating long-responders from non-long-responders (AUC = 0.67, Delta SUV cut-off = 28.8%) respects to its ability to identify long survivors from no-long survivors (AUC = 0.60, Delta SUV cut-off = 53.8%). Patients were divided into groups according to the Delta SUV cut-offs and survival outcomes were evaluated: patients with a decrease of ∆SUV% ≥ 28.8% had significantly better PFS (10 months-PFS: 63.2%, 95% CI: 37.9-80.4% and 16.7%, 95% CI: 2.7-41.3% respectively, p = 0.005). As regard as OS, patients with ∆SUV% ≥ 53.8% had longer OS when compared to patients with ∆SUV% < 53.8% (36 month-OS: 82.5% vs. 45.9% vs. p = 0.048). Conclusion: We found two precocious ∆SUV% thresholds capable of identifying HR+ HER2-mBC patients, which would achieve long-term benefit or long-term survival during everolimus-exemestane therapy. These results warrant further validation in prospective studies and should be integrated with molecular biomarkers related to tumor metabolism and mTORC1 signaling.
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Affiliation(s)
- Marianna Sirico
- Department of Surgery and Cancer, Imperial College London, London W12 0NN, UK; (S.P.C.); (M.R.C.); (M.M.); (C.S.); (V.C.); (G.B.); (N.Z.); (M.D.); (D.G.)
- Azienda Socio-Sanitaria Territoriale Cremona, 26100 Cremona, Italy
- Correspondence: (M.S.); (N.S.)
| | - Ottavia Bernocchi
- Department of Medical, Surgery and Health Sciences, University of Trieste, 34147 Trieste, Italy; (O.B.); (F.G.)
| | - Navid Sobhani
- Section of Epidemiology and Population Science, Department of Medicine, Baylor College of Medicine, Baylor Plaza, Houston, TX 77030, USA
- Correspondence: (M.S.); (N.S.)
| | - Fabiola Giudici
- Department of Medical, Surgery and Health Sciences, University of Trieste, 34147 Trieste, Italy; (O.B.); (F.G.)
| | - Silvia P. Corona
- Department of Surgery and Cancer, Imperial College London, London W12 0NN, UK; (S.P.C.); (M.R.C.); (M.M.); (C.S.); (V.C.); (G.B.); (N.Z.); (M.D.); (D.G.)
- Azienda Socio-Sanitaria Territoriale Cremona, 26100 Cremona, Italy
- Department of Medical, Surgery and Health Sciences, University of Trieste, 34147 Trieste, Italy; (O.B.); (F.G.)
| | - Claudio Vernieri
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy; (C.V.); (F.N.); (G.V.B.); (F.D.B.)
- Fondazione Istituto FIRC di Oncologia Molecolare (IFOM), 20129 Milan, Italy
| | - Federico Nichetti
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy; (C.V.); (F.N.); (G.V.B.); (F.D.B.)
| | - Maria Rosa Cappelletti
- Department of Surgery and Cancer, Imperial College London, London W12 0NN, UK; (S.P.C.); (M.R.C.); (M.M.); (C.S.); (V.C.); (G.B.); (N.Z.); (M.D.); (D.G.)
- Azienda Socio-Sanitaria Territoriale Cremona, 26100 Cremona, Italy
| | - Manuela Milani
- Department of Surgery and Cancer, Imperial College London, London W12 0NN, UK; (S.P.C.); (M.R.C.); (M.M.); (C.S.); (V.C.); (G.B.); (N.Z.); (M.D.); (D.G.)
- Azienda Socio-Sanitaria Territoriale Cremona, 26100 Cremona, Italy
| | - Carla Strina
- Department of Surgery and Cancer, Imperial College London, London W12 0NN, UK; (S.P.C.); (M.R.C.); (M.M.); (C.S.); (V.C.); (G.B.); (N.Z.); (M.D.); (D.G.)
- Azienda Socio-Sanitaria Territoriale Cremona, 26100 Cremona, Italy
| | - Valeria Cervoni
- Department of Surgery and Cancer, Imperial College London, London W12 0NN, UK; (S.P.C.); (M.R.C.); (M.M.); (C.S.); (V.C.); (G.B.); (N.Z.); (M.D.); (D.G.)
- Azienda Socio-Sanitaria Territoriale Cremona, 26100 Cremona, Italy
| | - Giuseppina Barbieri
- Department of Surgery and Cancer, Imperial College London, London W12 0NN, UK; (S.P.C.); (M.R.C.); (M.M.); (C.S.); (V.C.); (G.B.); (N.Z.); (M.D.); (D.G.)
- Azienda Socio-Sanitaria Territoriale Cremona, 26100 Cremona, Italy
| | - Nicoletta Ziglioli
- Department of Surgery and Cancer, Imperial College London, London W12 0NN, UK; (S.P.C.); (M.R.C.); (M.M.); (C.S.); (V.C.); (G.B.); (N.Z.); (M.D.); (D.G.)
- Azienda Socio-Sanitaria Territoriale Cremona, 26100 Cremona, Italy
| | - Martina Dester
- Department of Surgery and Cancer, Imperial College London, London W12 0NN, UK; (S.P.C.); (M.R.C.); (M.M.); (C.S.); (V.C.); (G.B.); (N.Z.); (M.D.); (D.G.)
- Azienda Socio-Sanitaria Territoriale Cremona, 26100 Cremona, Italy
| | - Giulia Valeria Bianchi
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy; (C.V.); (F.N.); (G.V.B.); (F.D.B.)
| | - Filippo De Braud
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy; (C.V.); (F.N.); (G.V.B.); (F.D.B.)
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy
| | - Daniele Generali
- Department of Surgery and Cancer, Imperial College London, London W12 0NN, UK; (S.P.C.); (M.R.C.); (M.M.); (C.S.); (V.C.); (G.B.); (N.Z.); (M.D.); (D.G.)
- Azienda Socio-Sanitaria Territoriale Cremona, 26100 Cremona, Italy
- Department of Medical, Surgery and Health Sciences, University of Trieste, 34147 Trieste, Italy; (O.B.); (F.G.)
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High JAK2 Protein Expression Predicts a Poor Prognosis in Patients with Resectable Pancreatic Ductal Adenocarcinoma. DISEASE MARKERS 2020; 2020:7656031. [PMID: 33029256 PMCID: PMC7528024 DOI: 10.1155/2020/7656031] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 09/04/2020] [Accepted: 09/08/2020] [Indexed: 12/16/2022]
Abstract
Background Pancreatic ductal adenocarcinoma (PDAC) is one of the most fatal malignancies worldwide. The JAK/STAT signaling pathway is involved in pancreatic cancer tumorigenesis. However, the prognostic value of JAK2 expression in resectable PDAC is unclear. Method In this study, we performed a clinicopathological analysis of 62 resectable PDAC cases with a primary focus on survival. JAK2 expression was examined by immunohistochemistry. The relationship between JAK2 expression and clinicopathological features and prognosis was analyzed. Results Survival curve analyses revealed that high levels of JAK2 expression predict a poor prognosis in resectable PDAC patients. Multivariate analysis confirmed that JAK2 expression can predict the prognosis of PDAC. Conclusions Assessment of JAK2 protein expression may be a promising method to predict prognosis in patients with resectable PDAC.
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Li J, Liu Y, Liu Q. [Expression of superoxide dismutase 2 in breast cancer and its clinical significance]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2020; 40:1103-1111. [PMID: 32895185 DOI: 10.12122/j.issn.1673-4254.2020.08.06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To evaluate the expression and prognostic value of superoxide dismutase 2 (SOD2) in breast cancer and explore its possible role in the occurrence and progression of breast cancer. METHODS We performed bioinformatics analysis of the TCGA data for the expression and clinical relevance of SOD2 in patients with breast cancer. Gene enrichment analysis (GSEA) was performed using the KEGG gene set, the protein interaction network was constructed using the STRING database, and the key genes were screened using Cytoscape software. We also collected 60 pairs of primary breast cancer tissue samples and adjacent samples for detecting SOD2 expressions using immunohistochemistry and RT-qPCR and analyzed the correlation of SOD2 expression with the clinicopathological parameters of the patients. RESULTS The expression of SOD2 was significantly lower in breast cancer tissue than in adjacent tissues with significant correlation with TNM stage and axillary lymph node metastasis (P < 0.05). Kaplan-Meier survival analysis showed that the recurrence-free survival, distant metastasis-free survival (RFS) and post-progressive survival were significantly shorted in patients with high SOD2 expression than in those with low SOD2 expression (P < 0.05). GSEA enrichment analysis indicated that SOD2 played an important role in the JAK-STAT signaling pathway. IL10 and STAT4 were identified as the key genes in the PPI network, and they were both positively correlated with SOD2. In the 60 pairs of clinical samples, SOD2 was highly expressed in breast cancer tissues with close correlation with axillary lymph node metastasis and the expressions of estrogen receptor and androgen receptor (P < 0.05). CONCLUSIONS The expression of SOD2 in breast cancer is significantly correlated with TNM stage and axillary lymph node metastasis. SOD2 may affect the proliferation, invasion and metastasis of breast cancer cells possibly by regulating IL10 and/or STAT4 to affect the JAK/STAT signaling pathway.
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Affiliation(s)
- Jinping Li
- General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - Yaobang Liu
- General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - Qilun Liu
- General Hospital of Ningxia Medical University, Yinchuan 750004, China
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16
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Combination cyclin-dependent kinase 4/6 inhibitors and endocrine therapy versus endocrine monotherapy for hormonal receptor-positive, human epidermal growth factor receptor 2-negative advanced breast cancer: A systematic review and meta-analysis. PLoS One 2020; 15:e0233571. [PMID: 32497134 PMCID: PMC7272037 DOI: 10.1371/journal.pone.0233571] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 05/07/2020] [Indexed: 12/24/2022] Open
Abstract
Purpose This meta-analysis aimed to assess the efficacy and safety of cyclin-dependent kinase (CDK) 4/6 inhibitors plus endocrine therapy (ET) in hormonal receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) advanced breast cancer (ABC). Methods We searched PubMed, Embase, Cochrane, ClinicalTrials.gov., ASCO, ESMO and AACR databases from inception to October 10, 2019 for randomized controlled trials (RCTs) that compared CDK 4/6 inhibitors plus ET to single-agent ET with no treatment-line restriction. The main outcomes analyzed were progression-free survival (PFS), overall survival (OS), objective response rate (ORR), clinical benefit rate (CBR), and adverse events (AEs). Results Of 938 identified studies, 9 RCTs with 5043 women were eligible and included. Compared with ET alone, CDK 4/6 inhibitors and ET combination improved in PFS (hazard ratio (HR) 0.54, 95% confidence interval (CI) 0.50–0.59, p< 0.00001) and OS (HR 0.77, 95% CI 0.69–0.85, p< 0.00001), regardless of ET strategies (HR 0.54, 95% CI 0.50–0.59 in PFS; HR 0.77, 95% CI 0.69–0.85 in OS), treatment line of advanced disease (HR 0.52, 95% CI 0.46–0.59 in PFS; HR 0.75, 95% CI 0.66–0.85 in OS) and menopausal status (HR 0.54, 95% CI 0.50–0.58 in PFS; HR 0.76, 95% CI 0.68–0.84 in OS). Higher risk of grade 3/4 AEs (RR 2.66, 95% CI 2.44–2.90, p < 0.00001) were observed in the combination group than in the ET group. Conclusions Combination therapy with CDK 4/6 inhibitors and ET prolongs survival in HR+/ HER2- ABC. This combination is a better therapeutic strategy than endocrine monotherapy in HR+/HER2- ABC, regardless of treatment line, menopausal status and other individual characteristics.
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Atallah R, Parker NA, Hamouche K, Truong QV, Dingwall M. Palbociclib-Induced Liver Failure. Kans J Med 2020; 13:81-82. [PMID: 32337006 PMCID: PMC7182058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 12/23/2019] [Indexed: 11/30/2022] Open
Affiliation(s)
- Rami Atallah
- Department of Internal Medicine, University of Kansas School of Medicine-Wichita, KS
| | - Nathaniel A. Parker
- Department of Internal Medicine, University of Kansas School of Medicine-Wichita, KS
| | - Karl Hamouche
- Department of Diagnostic Radiology, University of Kansas School of Medicine-Wichita, KS
| | - Quoc V. Truong
- Department of Internal Medicine, University of Kansas School of Medicine-Wichita, KS,Cancer Center of Kansas, Wichita, KS
| | - Megan Dingwall
- Department of Internal Medicine, University of Kansas School of Medicine-Wichita, KS
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18
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Occhipinti G, Romagnoli E, Santoni M, Cimadamore A, Sorgentoni G, Cecati M, Giulietti M, Battelli N, Maccioni A, Storti N, Cheng L, Principato G, Montironi R, Piva F. Sequential or Concomitant Inhibition of Cyclin-Dependent Kinase 4/6 Before mTOR Pathway in Hormone-Positive HER2 Negative Breast Cancer: Biological Insights and Clinical Implications. Front Genet 2020; 11:349. [PMID: 32351542 PMCID: PMC7174681 DOI: 10.3389/fgene.2020.00349] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 03/23/2020] [Indexed: 12/25/2022] Open
Abstract
About 75% of all breast cancers are hormone receptor-positive (HR+). However, the efficacy of endocrine therapy is limited due to the high rate of either pre-existing or acquired resistance. In this work we reconstructed the pathways around estrogen receptor (ER), mTOR, and cyclin D in order to compare the effects of CDK4/6 and PI3K/AKT/mTOR inhibitors. A positive feedback loop links mTOR and ER that support each other. We subsequently considered whether a combined or sequential inhibition of CDK4/6 and PI3K/AKT/mTOR could ensure better results. Studies indicate that inhibition of CDK4/6 activates mTOR as an escape mechanism to ensure cell proliferation. In literature, the little evidence dealing with this topic suggests that pre-treatment with mTOR pathway inhibitors could prevent or delay the onset of CDK4/6 inhibitor resistance. Additional studies are needed in order to find biomarkers that can identify patients who will develop this resistance and in whom the sensitivity to CDK4/6 inhibitors can be restored.
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Affiliation(s)
- Giulia Occhipinti
- Department of Specialistic Clinical and Odontostomatological Sciences, Polytechnic University of Marche, Ancona, Italy
| | | | | | - Alessia Cimadamore
- Section of Pathological Anatomy, School of Medicine, United Hospitals, Polytechnic University of the Marche Region, Ancona, Italy
| | | | - Monia Cecati
- Department of Specialistic Clinical and Odontostomatological Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Matteo Giulietti
- Department of Specialistic Clinical and Odontostomatological Sciences, Polytechnic University of Marche, Ancona, Italy
| | | | | | - Nadia Storti
- Direzione Sanitaria Azienda Sanitaria Unica Regionale, Ancona, Italy
| | - Liang Cheng
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Giovanni Principato
- Department of Specialistic Clinical and Odontostomatological Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Rodolfo Montironi
- Section of Pathological Anatomy, School of Medicine, United Hospitals, Polytechnic University of the Marche Region, Ancona, Italy
| | - Francesco Piva
- Department of Specialistic Clinical and Odontostomatological Sciences, Polytechnic University of Marche, Ancona, Italy
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19
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The Pharmacological Profile of Cyclin-dependent Kinase (CDK) 4/6 Inhibitors: Clinical Management of Toxicity and Drug Interactions Related to CDK 4/6 Inhibitor-based Treatment in Advanced/Metastatic Breast Cancer. FORUM OF CLINICAL ONCOLOGY 2020. [DOI: 10.2478/fco-2019-0007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Abstract
The emergence of cyclin-dependent kinase (CDK) 4 and 6 inhibitors has brought a new approach in the treatment of advanced hormone receptor (HR) positive breast cancer and human epidermal growth factor (HER) 2 negative breast cancer. To date, three CDK 4/6 inhibitors, palbociclib, ribociclib, and abemaciclib, are approved by the Food and Drug Administration (FDA); the first two agents are approved by the European Medicines Agency (EMA) as well. The family of CDKs consists of key regulatory enzymes that play a significant role in cell cycle progression. The aim of this review is to give an overview of the mechanism of action and the efficacy of CDK4/6 inhibitors and to highlight the most serious adverse events and the drug interactions related to these agents.
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20
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Kruger DT, Opdam M, Sanders J, van der Noort V, Boven E, Linn SC. Hierarchical clustering of PI3K and MAPK pathway proteins in breast cancer intrinsic subtypes. APMIS 2020; 128:298-307. [PMID: 31976581 PMCID: PMC7317370 DOI: 10.1111/apm.13026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 01/10/2020] [Indexed: 01/04/2023]
Abstract
The phosphatidylinositol‐3‐kinase (PI3K) and mitogen‐activated protein kinase (MAPK) pathways are frequently activated in breast cancer. We recently demonstrated the importance of analyzing multiple proteins as read‐out for pathway activation in ER+/HER2− breast cancer, since single proteins are known to provide insufficient information. Here, we determined pathway activation in other primary breast cancer intrinsic subtypes derived from postmenopausal patients. Tumor blocks were recollected, and immunohistochemistry was performed using antibodies against PTEN, p‐AKT(Thr308), p‐AKT(Ser473), p‐p70S6K, p‐4EBP1, p‐S6RP(Ser235/236) and p‐ERK1/2, followed by unsupervised hierarchical clustering. In 32 ER+/HER2+, 37 ER−/HER2+ and 74 triple‐negative breast cancer patients, subgroups were identified with preferentially activated (A) and preferentially not activated (N) proteins. These subgroups likely reflect tumors with differences in biological behavior as well as treatment outcome.
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Affiliation(s)
- Dinja T Kruger
- Department of Medical Oncology, Amsterdam UMC, Vrije Universiteit Amsterdam/Cancer Center Amsterdam, Amsterdam, The Netherlands.,Division of Molecular Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Mark Opdam
- Division of Molecular Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Joyce Sanders
- Department of Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Vincent van der Noort
- Division of Biometrics, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Epie Boven
- Department of Medical Oncology, Amsterdam UMC, Vrije Universiteit Amsterdam/Cancer Center Amsterdam, Amsterdam, The Netherlands
| | - Sabine C Linn
- Division of Molecular Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands.,Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands.,Department of Pathology, University Medical Centre Utrecht, Utrecht University, Utrecht, The Netherlands
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21
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Hurvitz SA, Martin M, Press MF, Chan D, Fernandez-Abad M, Petru E, Rostorfer R, Guarneri V, Huang CS, Barriga S, Wijayawardana S, Brahmachary M, Ebert PJ, Hossain A, Liu J, Abel A, Aggarwal A, Jansen VM, Slamon DJ. Potent Cell-Cycle Inhibition and Upregulation of Immune Response with Abemaciclib and Anastrozole in neoMONARCH, Phase II Neoadjuvant Study in HR +/HER2 - Breast Cancer. Clin Cancer Res 2020; 26:566-580. [PMID: 31615937 PMCID: PMC7498177 DOI: 10.1158/1078-0432.ccr-19-1425] [Citation(s) in RCA: 118] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 08/28/2019] [Accepted: 10/11/2019] [Indexed: 01/14/2023]
Abstract
PURPOSE neoMONARCH assessed the biological effects of abemaciclib in combination with anastrozole in the neoadjuvant setting. PATIENTS AND METHODS Postmenopausal women with stage I-IIIB HR+/HER2- breast cancer were randomized to a 2-week lead-in of abemaciclib, anastrozole, or abemaciclib plus anastrozole followed by 14 weeks of the combination. The primary objective evaluated change in Ki67 from baseline to 2 weeks of treatment. Additional objectives included clinical, radiologic, and pathologic responses, safety, as well as gene expression changes related to cell proliferation and immune response. RESULTS Abemaciclib, alone or in combination with anastrozole, achieved a significant decrease in Ki67 expression and led to potent cell-cycle arrest after 2 weeks of treatment compared with anastrozole alone. More patients in the abemaciclib-containing arms versus anastrozole alone achieved complete cell-cycle arrest (58%/68% vs. 14%, P < 0.001). At the end of treatment, following 2 weeks lead-in and 14 weeks of combination therapy, 46% of intent-to-treat patients achieved a radiologic response, with pathologic complete response observed in 4%. The most common all-grade adverse events were diarrhea (62%), constipation (44%), and nausea (42%). Abemaciclib, anastrozole, and the combination inhibited cell-cycle processes and estrogen signaling; however, combination therapy resulted in increased cytokine signaling and adaptive immune response indicative of enhanced antigen presentation and activated T-cell phenotypes. CONCLUSIONS Abemaciclib plus anastrozole demonstrated biological and clinical activity with generally manageable toxicities in patients with HR+/HER2- early breast cancer. Abemaciclib led to potent cell-cycle arrest, and in combination with anastrozole, enhanced immune activation.
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Affiliation(s)
- Sara A. Hurvitz
- University of California, Los Angeles, Los Angeles, California
| | - Miguel Martin
- Instituto de Investigacion Sanitaria Gregorio Marañon, Ciberonc, Departamento de Medicina, Universidad Complutense, Madrid, Spain
| | | | - David Chan
- Cancer Care Associates, Redondo Beach, California
| | | | | | | | | | | | | | | | | | | | | | | | - Adam Abel
- Eli Lilly and Company, Indianapolis, Indiana
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22
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Liu Z, Li M, Hua Q, Li Y, Wang G. Identification of an eight-lncRNA prognostic model for breast cancer using WGCNA network analysis and a Cox‑proportional hazards model based on L1-penalized estimation. Int J Mol Med 2019; 44:1333-1343. [PMID: 31432096 PMCID: PMC6713414 DOI: 10.3892/ijmm.2019.4303] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 05/24/2019] [Indexed: 12/11/2022] Open
Abstract
An ever‑increasing number of long noncoding (lnc)RNAs has been identified in breast cancer. The present study aimed to establish an lncRNA signature for predicting survival in breast cancer. RNA expression profiling was performed using microarray gene expression data from the National Center for Biotechnology Information Gene Expression Omnibus, followed by the identification of breast cancer‑related preserved modules using weighted gene co‑expression network (WGCNA) network analysis. From the lncRNAs identified in these preserved modules, prognostic lncRNAs were selected using univariate Cox regression analysis in combination with the L1‑penalized (LASSO) Cox‑proportional Hazards (Cox‑PH) model. A risk score based on these prognostic lncRNAs was calculated and used for risk stratification. Differentially expressed RNAs (DERs) in breast cancer were identified using MetaDE. Gene Set Enrichment Analysis pathway enrichment analysis was conducted for these prognostic lncRNAs and the DERs related to the lncRNAs in the preserved modules. A total of five preserved modules comprising 73 lncRNAs were mined. An eight‑lncRNA signature (IGHA1, IGHGP, IGKV2‑28, IGLL3P, IGLV3‑10, AZGP1P1, LINC00472 and SLC16A6P1) was identified using the LASSO Cox‑PH model. Risk score based on these eight lncRNAs could classify breast cancer patients into two groups with significantly different survival times. The eight‑lncRNA signature was validated using three independent cohorts. These prognostic lncRNAs were significantly associated with the cell adhesion molecules pathway, JAK‑signal transducer and activator of transcription 5A pathway, and erbb pathway and are potentially involved in regulating angiotensin II receptor type 1, neuropeptide Y receptor Y1, KISS1 receptor, and C‑C motif chemokine ligand 5. The developed eight‑lncRNA signature may have clinical implications for predicting prognosis in breast cancer. Overall, this study provided possible molecular targets for the development of novel therapies against breast cancer.
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Affiliation(s)
- Zhenbin Liu
- Department of Ulcer and Vascular Surgery, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, P.R. China
| | - Menghu Li
- Department of Ulcer and Vascular Surgery, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, P.R. China
| | - Qi Hua
- Department of Ulcer and Vascular Surgery, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, P.R. China
| | - Yanfang Li
- Department of Ulcer and Vascular Surgery, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, P.R. China
| | - Gang Wang
- Department of Ulcer and Vascular Surgery, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, P.R. China
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23
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Irey EA, Lassiter CM, Brady NJ, Chuntova P, Wang Y, Knutson TP, Henzler C, Chaffee TS, Vogel RI, Nelson AC, Farrar MA, Schwertfeger KL. JAK/STAT inhibition in macrophages promotes therapeutic resistance by inducing expression of protumorigenic factors. Proc Natl Acad Sci U S A 2019; 116:12442-12451. [PMID: 31147469 PMCID: PMC7056941 DOI: 10.1073/pnas.1816410116] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Tumor-associated macrophages contribute to tumor progression and therapeutic resistance in breast cancer. Within the tumor microenvironment, tumor-derived factors activate pathways that modulate macrophage function. Using in vitro and in vivo models, we find that tumor-derived factors induce activation of the Janus kinase (JAK)/signal transducer and activator of transcription 3 (STAT3) pathway in macrophages. We also demonstrate that loss of STAT3 in myeloid cells leads to enhanced mammary tumorigenesis. Further studies show that macrophages contribute to resistance of mammary tumors to the JAK/STAT inhibitor ruxolitinib in vivo and that ruxolitinib-treated macrophages produce soluble factors that promote resistance of tumor cells to JAK inhibition in vitro. Finally, we demonstrate that STAT3 deletion and JAK/STAT inhibition in macrophages increases expression of the protumorigenic factor cyclooxygenase-2 (COX-2), and that COX-2 inhibition enhances responsiveness of tumors to ruxolitinib. These findings define a mechanism through which macrophages promote therapeutic resistance and highlight the importance of understanding the impact of targeted therapies on the tumor microenvironment.
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Affiliation(s)
- Emily A Irey
- Microbiology, Immunology and Cancer Biology Graduate Program, University of Minnesota, Minneapolis, MN 55455
| | - Chelsea M Lassiter
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455
| | - Nicholas J Brady
- Microbiology, Immunology and Cancer Biology Graduate Program, University of Minnesota, Minneapolis, MN 55455
| | - Pavlina Chuntova
- Microbiology, Immunology and Cancer Biology Graduate Program, University of Minnesota, Minneapolis, MN 55455
| | - Ying Wang
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455
| | - Todd P Knutson
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455
- University of Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, MN 55455
| | - Christine Henzler
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455
- University of Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, MN 55455
| | - Thomas S Chaffee
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455
| | - Rachel I Vogel
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455
- Department of Obstetrics, Gynecology and Women's Health, Division of Gynecologic Oncology, University of Minnesota, Minneapolis, MN 55455
| | - Andrew C Nelson
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455
| | - Michael A Farrar
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455
| | - Kathryn L Schwertfeger
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455;
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455
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24
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Development of Personalized Therapeutic Strategies by Targeting Actionable Vulnerabilities in Metastatic and Chemotherapy-Resistant Breast Cancer PDXs. Cells 2019; 8:cells8060605. [PMID: 31216647 PMCID: PMC6627522 DOI: 10.3390/cells8060605] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 05/27/2019] [Accepted: 06/14/2019] [Indexed: 02/08/2023] Open
Abstract
Human breast cancer is characterized by a high degree of inter-patients heterogeneity in terms of histology, genomic alterations, gene expression patterns, and metastatic behavior, which deeply influences individual prognosis and treatment response. The main cause of mortality in breast cancer is the therapy-resistant metastatic disease, which sets the priority for novel treatment strategies for these patients. In the present study, we demonstrate that Patient Derived Xenografts (PDXs) that were obtained from metastatic and therapy-resistant breast cancer samples recapitulate the wide spectrum of the disease in terms of histologic subtypes and mutational profiles, as evaluated by whole exome sequencing. We have integrated genomic and transcriptomic data to identify oncogenic and actionable pathways in each PDX. By taking advantage of primary short-term in vitro cultures from PDX tumors, we showed their resistance to standard chemotherapy (Paclitaxel), as seen in the patients. Moreover, we selected targeting drugs and analyzed PDX sensitivity to single agents or to combination of targeted and standard therapy on the basis of PDX-specific genomic or transcriptomic alterations. Our data demonstrate that PDXs represent a suitable model to test new targeting drugs or drug combinations and to prioritize personalized therapeutic regimens for pre-clinal and clinical tests.
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25
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Mayer IA, Prat A, Egle D, Blau S, Fidalgo JAP, Gnant M, Fasching PA, Colleoni M, Wolff AC, Winer EP, Singer CF, Hurvitz S, Estévez LG, van Dam PA, Kümmel S, Mundhenke C, Holmes F, Babbar N, Charbonnier L, Diaz-Padilla I, Vogl FD, Sellami D, Arteaga CL. A Phase II Randomized Study of Neoadjuvant Letrozole Plus Alpelisib for Hormone Receptor-Positive, Human Epidermal Growth Factor Receptor 2-Negative Breast Cancer (NEO-ORB). Clin Cancer Res 2019; 25:2975-2987. [PMID: 30723140 PMCID: PMC6522303 DOI: 10.1158/1078-0432.ccr-18-3160] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/20/2018] [Accepted: 01/23/2019] [Indexed: 12/13/2022]
Abstract
PURPOSE Addition of alpelisib to fulvestrant significantly extended progression-free survival in PIK3CA-mutant, hormone receptor-positive (HR+) advanced/metastatic breast cancer in the phase III SOLAR-1 study. The combination of alpelisib and letrozole also had promising activity in phase I studies of HR+ advanced/metastatic breast cancer. NEO-ORB aimed to determine whether addition of alpelisib to letrozole could increase response rates in the neoadjuvant setting.Patients and Methods: Postmenopausal women with HR+, human epidermal growth factor receptor 2-negative, T1c-T3 breast cancer were assigned to the PIK3CA-wild-type or PIK3CA-mutant cohort according to their tumor PIK3CA status, and randomized (1:1) to 2.5 mg/day letrozole with 300 mg/day alpelisib or placebo for 24 weeks. Primary endpoints were objective response rate (ORR) and pathologic complete response (pCR) rate for both PIK3CA cohorts. RESULTS In total, 257 patients were assigned to letrozole plus alpelisib (131 patients) or placebo (126 patients). Grade ≥3 adverse events (≥5% of patients) in the alpelisib arm were hyperglycemia (27%), rash (12%), and maculo-papular rash (8%). The primary objective was not met; ORR in the alpelisib versus placebo arm was 43% versus 45% and 63% versus 61% in the PIK3CA-mutant and wild-type cohorts, respectively. pCR rates were low in all groups. Decreases in Ki-67 were similar across treatment arms and cohorts. In PIK3CA-mutant tumors, alpelisib plus letrozole treatment induced a greater decrease in phosphorylated AKT versus placebo plus letrozole. CONCLUSIONS In contrast to initial results in advanced/metastatic disease, addition of alpelisib to 24-week neoadjuvant letrozole treatment did not improve response in patients with HR+ early breast cancer.
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Affiliation(s)
- Ingrid A Mayer
- Department of Medicine, Vanderbilt University Medical Center/Vanderbilt-Ingram Cancer Center, Nashville, Tennessee.
| | - Aleix Prat
- Translational Genomics and Targeted Therapeutics in Solid Tumors, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Department of Medical Oncology, Hospital Clinic of Barcelona, Barcelona, Spain
| | - Daniel Egle
- Department of Gynecology and Obstetrics, Medical University of Innsbruck, Innsbruck, Austria
| | - Sibel Blau
- Rainier Hematology-Oncology, Northwest Medical Specialties, Tacoma, Washington
| | - J Alejandro Pérez Fidalgo
- Department of Oncology, CIBERONC, Hospital Clínico Universitario de Valencia - INCLIVA, Valencia, Spain
| | - Michael Gnant
- Department of Surgery, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Peter A Fasching
- Department of Gynecology and Obstetrics, University Hospital Erlangen and Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander-Universität, Erlangen-Nürnberg, Erlangen, Germany
| | - Marco Colleoni
- Division of Medical Senology, European Institute of Oncology (IEO), IRCCS, Milan, and International Breast Cancer Study Group, Milan, Italy
| | - Antonio C Wolff
- Department of Oncology, The Johns Hopkins Sidney Kimmel Comprehensive Cancer Center, Baltimore, Maryland
| | - Eric P Winer
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Christian F Singer
- Department of Obstetrics and Gynecology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Sara Hurvitz
- Department of Medicine, University of California, Los Angeles, California
| | | | - Peter A van Dam
- Gynecologic Oncology and Senology, Antwerp University Hospital, Edegem, Belgium
| | | | - Christoph Mundhenke
- Department of Obstetrics and Gynecology, Universitätsklinikum Schleswig-Holstein, Kiel, Germany
| | - Frankie Holmes
- Texas Oncology-Houston Memorial City and US Oncology Research Network, Houston, Texas
| | - Naveen Babbar
- Oncology Precision Medicine, Novartis Pharmaceuticals Corporation, East Hanover, New Jersey
| | | | | | - Florian D Vogl
- Oncology Global Development, Novartis Pharma AG, Basel, Switzerland
| | - Dalila Sellami
- Oncology Precision Medicine, Novartis Pharmaceuticals Corporation, East Hanover, New Jersey
| | - Carlos L Arteaga
- Department of Medicine, UTSW Harold C. Simmons Comprehensive Cancer Center, Dallas, Texas.
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26
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Economopoulou P, Kotoula V, Koliou GA, Papadopoulou K, Christodoulou C, Pentheroudakis G, Lazaridis G, Arapantoni-Dadioti P, Koutras A, Bafaloukos D, Papakostas P, Patsea H, Pavlakis K, Pectasides D, Kotsakis A, Razis E, Aravantinos G, Samantas E, Kalogeras KT, Economopoulos T, Psyrri A, Fountzilas G. Prognostic Impact of Src, CDKN1B, and JAK2 Expression in Metastatic Breast Cancer Patients Treated with Trastuzumab. Transl Oncol 2019; 12:739-748. [PMID: 30877976 PMCID: PMC6423363 DOI: 10.1016/j.tranon.2019.02.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 02/21/2019] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND: Src, CDKN1B, and JAK2 play a crucial role in the coordination of cell signaling pathways. In the present study, we aim to investigate the prognostic significance of these biomarkers in HER2-positive metastatic breast cancer (MBC) patients treated with trastuzumab (T). METHODS: Formalin-fixed paraffin-embedded tumor tissue samples from 197 patients with HER2-positive MBC treated with T were retrospectively collected. All tissue samples were centrally assessed for ER, PgR, Ki67, HER2, and PTEN protein expression; EGFR gene amplification; PI3KCA mutational status; and tumor-infiltrating lympocytes density. Src, CDKN1B, and JAK2 mRNA expression was evaluated using quantitative reverse transcription-polymerase chain reaction. RESULTS: Only 133 of the 197 patients (67.5%) were found to be HER2-positive by central assessment. CDKN1B mRNA expression was strongly correlated with Src (rho = 0.71) and JAK2 (rho = 0.54). In HER2-positive patients, low CDKN1B conferred higher risk for progression [hazard ratio (HR) = 1.58, 95% confidence interval (CI) 1.08-2.32, P = .018]. In HER2-negative patients, low Src was associated with longer survival (HR = 0.56, 95% CI 0.32-0.99, P = .045). Upon multivariate analyses, only low CDKN1B and JAK2 mRNA expression remained unfavorable factors for PFS in de novo and relapsed (R)-MBC patients, respectively (HR = 2.36, 95% CI 1.01-5.48, P = .046 and HR = 1.76, 95% CI 1.01-3.06, P = .047, respectively). CONCLUSIONS: Low CDKN1B and JAK2 mRNA expressions were unfavorable prognosticators in a cohort of T-treated MBC patients. Our results suggest that CDKN1B and JAK2, if validated, may serve as prognostic factors potentially implicated in T resistance, which seems to be associated with distinct pathways in de novo and R-MBC.
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Affiliation(s)
- Panagiota Economopoulou
- Second Department of Internal Medicine, Attikon University Hospital, 1 Rimini St 12462, Haidari, Athens, Greece.
| | - Vassiliki Kotoula
- Department of Pathology, Aristotle University of Thessaloniki, School of Health Sciences, Faculty of Medicine, University Campus, Building 17B, 54006, Thessaloniki, Greece; Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research/Aristotle University of Thessaloniki, University Campus, Building 17B, 54006, Thessaloniki, Greece.
| | - Georgia-Angeliki Koliou
- Section of Biostatistics, Hellenic Cooperative Oncology Group, 18 Hatzikonstanti St, 11524, Athens, Greece.
| | - Kyriaki Papadopoulou
- Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research/Aristotle University of Thessaloniki, University Campus, Building 17B, 54006, Thessaloniki, Greece.
| | - Christos Christodoulou
- Second Department of Medical Oncology, Metropolitan Hospital, 9 Ethnarchou Makariou St, 185 47, Piraeus, Greece.
| | - George Pentheroudakis
- Department of Medical Oncology, Ioannina University Hospital, Leof. Stavrou Niarchou, 45500, Ioannina, Greece.
| | - Georgios Lazaridis
- Department of Medical Oncology, Papageorgiou Hospital, Aristotle University of Thessaloniki, School of Health Sciences, Faculty of Medicine, Ring Road, Nea Efkarpia, 56450, Thessaloniki, Greece
| | | | - Angelos Koutras
- Division of Oncology, Department of Medicine, University Hospital, University of Patras Medical School, Panepistimioupoli Patron, 26504, Patras, Greece.
| | - Dimitris Bafaloukos
- First department of Medical Oncology, Metropolitan Hospital, 9 Ethnarchou Makariou St, 185 47, Piraeus, Greece.
| | - Pavlos Papakostas
- Oncology Unit, Hippokration Hospital, 114 Vasilissis Sofias Av, 11527, Athens, Greece.
| | - Helen Patsea
- Department of Pathology, IASSO General Hospital, 264 Mesogion Av, 15562, Athens, Greece
| | - Kitty Pavlakis
- Pathology Department, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
| | - Dimitrios Pectasides
- Oncology Section, Second Department of Internal Medicine, Hippokration Hospital, 114 Vasilissis Sofias Av, 11527, Athens, Greece.
| | - Athanasios Kotsakis
- Department of Medical Oncology, University General Hospital of Heraklion, Voutes, 71110, Crete, Greece.
| | - Evangelia Razis
- Third Department of Medical Oncology, Hygeia Hospital, 4 Erithrou Stavrou St, Marousi, 15123, Athens, Greece.
| | - Gerasimos Aravantinos
- Second Department of Medical Oncology, Agii Anargiri Cancer Hospital, Athens, Greece
| | - Epaminondas Samantas
- Third Department of Medical Oncology, Agii Anargiri Cancer Hospital, Timiou Stavrou, 14564, Kifisia, Athens, Greece.
| | - Konstantine T Kalogeras
- Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research/Aristotle University of Thessaloniki, University Campus, Building 17B, 54006, Thessaloniki, Greece; Translational Research Section, Hellenic Cooperative Oncology Group, 18 Hatzikonstanti St, 11524, Athens, Greece.
| | - Theofanis Economopoulos
- Second Department of Internal Medicine, Attikon University Hospital, 1 Rimini St 12462, Haidari, Athens, Greece.
| | - Amanta Psyrri
- Second Department of Internal Medicine, Attikon University Hospital, 1 Rimini St 12462, Haidari, Athens, Greece.
| | - George Fountzilas
- Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research/Aristotle University of Thessaloniki, University Campus, Building 17B, 54006, Thessaloniki, Greece; Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.
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Sun Y, Liu L, Wang Y, He A, Hu H, Zhang J, Han M, Huang Y. Curcumin inhibits the proliferation and invasion of MG-63 cells through inactivation of the p-JAK2/p-STAT3 pathway. Onco Targets Ther 2019; 12:2011-2021. [PMID: 30936718 PMCID: PMC6421868 DOI: 10.2147/ott.s172909] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Purpose The aims of this study were to determine the effect of curcumin on osteosarcoma (OS) cells due to inactivation of the p-JAK2/p-STAT3 pathway and evaluate the prognostic value of this pathway in OS. Materials and methods We exposed a human OS cell line (MG-63) to different concentrations of curcumin. Then, we characterized the effects on MG-63 cells using assays (cell viability, colony formation, cell cycle, wound healing, invasion), flow cytometry, Western blot, immunohistochemical analyses, and tumor xenograft. Results The half-maximal inhibitory of curcumin for MG-63 cells at 24 hours was 27.6 µM. The number of colonies of MG-63 cells was decreased obviously upon curcumin (10 and 20 µM) treatment. We also found increased accumulation of MG-63 cells in the G2/M phase upon curcumin (10 and 20 µM) treatment. Apoptosis was increased in 10 and 20 µM curcumin-treated MG-63 cells. After incubation of physically wounded cells for 24 hours, the percentage wound width increased upon curcumin exposure. Curcumin obviously decreased the expression of pJAK-2 and pSTAT-3 in MG-63 cells in a dose-dependent manner. Curcumin dose-dependently inhibited the proliferation, migration, and invasion of MG-63 cells and induced arrest of the G0/G1 phase and apoptosis by inhibiting the p-JAK2/p-STAT3 pathway. The linear correlativity between expression of p-JAK2 and STAT3 was very prominent, and both were closely associated with lung metastasis. In vivo study suggested that curcumin suppressed tumor growth through JAK2/STAT3 signaling. Conclusion Curcumin-mediated inhibition of the proliferation and migration of MG-63 cells was associated with inactivation of JAK/STAT signaling.
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Affiliation(s)
- Yuanjue Sun
- Cancer Therapy and Research Center, Shandong Provincial Hospital, Shandong University, 250021, Shandong, People's Republic of China,
| | - Liguo Liu
- Department of General Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 200233 Shanghai, People's Republic of China
| | - Yaling Wang
- Department of Medical Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 200233 Shanghai, People's Republic of China,
| | - Aina He
- Department of Medical Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 200233 Shanghai, People's Republic of China,
| | - Haiyan Hu
- Department of Medical Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 200233 Shanghai, People's Republic of China,
| | - Jianjun Zhang
- Department of Medical Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 200233 Shanghai, People's Republic of China,
| | - Mingyong Han
- Cancer Therapy and Research Center, Shandong Provincial Hospital, Shandong University, 250021, Shandong, People's Republic of China,
| | - Yujing Huang
- Department of Medical Oncology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 200233 Shanghai, People's Republic of China,
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Kaklamani VG, Richardson AL, Arteaga CL. Exploring Biomarkers of Phosphoinositide 3-Kinase Pathway Activation in the Treatment of Hormone Receptor Positive, Human Epidermal Growth Receptor 2 Negative Advanced Breast Cancer. Oncologist 2019; 24:305-312. [PMID: 30651399 PMCID: PMC6519770 DOI: 10.1634/theoncologist.2018-0314] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 09/18/2018] [Indexed: 11/17/2022] Open
Abstract
Resistance to endocrine therapy (ET) is common in patients with hormone receptor positive (HR+) advanced breast cancer (ABC). Consequently, new targeted treatment options are needed in the post-ET setting, with validated biomarkers to inform treatment decisions. Hyperactivation of the phosphoinositide 3-kinase (PI3K) signaling pathway is common in ABC and is implicated in resistance to ET. The most frequent mechanism of PI3K pathway activation is activating mutations or amplification of PIK3CA, which encodes the α-isoform of the catalytic subunit of PI3K. Combining buparlisib, a pan-PI3K-targeted agent, with ET demonstrated modest clinical benefits in patients with aromatase inhibitor-resistant, HR+, human epidermal growth receptor 2 negative (HER2-) ABC in two phase III trials. Importantly, greater efficacy gains were observed in individuals with PIK3CA-mutated disease versus PIK3CA-wild-type tumors. Although the challenging safety profile did not support widespread use of this treatment combination, isoform-selective PI3K inhibitors may improve tolerability. In early clinical trials, promising disease control benefits were demonstrated with the PI3K isoform-selective inhibitors alpelisib and taselisib in patients with PIK3CA-mutated HR+, HER2- ABC. Ongoing biomarker-guided phase II/III studies may provide further opportunities to identify patients most likely to benefit from treatment with PI3K inhibitors and provide insight into optimizing the therapeutic index of PI3K inhibitors. Challenges facing the implementation of routine PIK3CA mutation testing must be addressed promptly so robust and reproducible genotyping can be obtained with liquid and tumor biopsies in a timely and cost-effective manner. IMPLICATIONS FOR PRACTICE: The development of phosphoinositide 3-kinase (PI3K) inhibitors, especially those that selectively target isoforms, may be an effective strategy for overcoming endocrine therapy resistance in hormone receptor positive, human epidermal growth receptor 2 negative advanced breast cancer. Early-phase studies have confirmed that patients with PIK3CA mutations respond best to PI3Kα-isoform inhibition. Ongoing phase III trials will provide further data regarding the efficacy and safety of PI3K inhibitors in patients with different biomarker profiles.
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Affiliation(s)
| | | | - Carlos L Arteaga
- Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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Long F, He Y, Fu H, Li Y, Bao X, Wang Q, Wang Y, Xie C, Lou L. Preclinical characterization of SHR6390, a novel CDK 4/6 inhibitor, in vitro and in human tumor xenograft models. Cancer Sci 2019; 110:1420-1430. [PMID: 30724426 PMCID: PMC6447953 DOI: 10.1111/cas.13957] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 01/24/2019] [Accepted: 01/28/2019] [Indexed: 02/06/2023] Open
Abstract
Inhibition of the cyclin‐dependent kinase (CDK) 4/6‐retinoblastoma (RB) pathway is an effective therapeutic strategy against cancer. Here, we performed a preclinical investigation of the antitumor activity of SHR6390, a novel CDK4/6 inhibitor. SHR6390 exhibited potent antiproliferative activity against a wide range of human RB‐positive tumor cells in vitro, and exclusively induced G1 arrest as well as cellular senescence, with a concomitant reduction in the levels of Ser780‐phosphorylated RB protein. Compared with the well‐known CDK4/6 inhibitor palbociclib, orally administered SHR6390 led to equivalent or improved tumor efficacy against a panel of carcinoma xenografts, and produced marked tumor regression in some models, in association with sustained target inhibition in tumor tissues. Furthermore, SHR6390 overcame resistance to endocrine therapy and HER2‐targeting antibody in ER‐positive and HER2‐positive breast cancer, respectively. Moreover, SHR6390 combined with endocrine therapy exerted remarkable synergistic antitumor activity in ER‐positive breast cancer. Taken together, our findings indicate that SHR6390 is a novel CDK4/6 inhibitor with favorable pharmaceutical properties for use as an anticancer agent.
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Affiliation(s)
- Fei Long
- Xinyuan Institute of Medicine and Biotechnology, Zhejiang Sci-Tech University, Zhejiang, China.,Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Ye He
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Haoyu Fu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Yun Li
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Xubin Bao
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Quanren Wang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Yigang Wang
- Xinyuan Institute of Medicine and Biotechnology, Zhejiang Sci-Tech University, Zhejiang, China
| | - Chengying Xie
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Liguang Lou
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
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Kim JW, Gautam J, Kim JE, Kim JA, Kang KW. Inhibition of tumor growth and angiogenesis of tamoxifen-resistant breast cancer cells by ruxolitinib, a selective JAK2 inhibitor. Oncol Lett 2019; 17:3981-3989. [PMID: 30930994 DOI: 10.3892/ol.2019.10059] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 01/31/2019] [Indexed: 12/21/2022] Open
Abstract
Tamoxifen (TAM) is the most widely used treatment for estrogen receptor-positive breast cancer patients. Unfortunately, the majority of these patients exhibit TAM resistance following treatment. We previously reported that proliferation and migration were greater in TAM-resistant MCF-7 (TAMR-MCF-7) cells than in parental MCF-7 cells. Janus kinases (JAKs) are cytosolic tyrosine kinases that transduce signals from plasma membrane cytokines and growth factor receptors. JAK2 selectively phosphorylates signal transducer and activator of transcription (STAT)-3, and the JAK2-STAT3 signaling pathway is known as a crucial signaling pathway for the regulation of cancer progression and metastasis. In the present study, basal phosphorylation of STAT3 was revealed to be greater in TAMR-MCF-7 cells than in control MCF-7 cells. Ruxolitinib, a potent JAK2 inhibitor, was demonstrated to attenuate STAT3 phosphorylation and the proliferation of TAMR-MCF-7 cells. Ruxolitinib also suppressed the enhanced cell migration of TAMR-MCF-7 cells through the inhibition of epithelial mesenchymal transition. Vascular endothelial growth factor (VEGF), a representative target gene of the JAK2-STAT3 pathway, functions as a key regulator of invasion and angiogenesis. Ruxolitinib significantly inhibited VEGF mRNA expression and transcriptional activity. The present study also performed a chick embryo chorioallantoic membrane assay to assess tumor growth and angiogenesis in TAMR-MCF-7 cells. Ruxolitinib reduced tumor weight and the number of blood vessels produced by TAMR-MCF-7 cells in a concentration-dependent manner. These results indicated that JAK2 could be a new therapeutic target for TAM-resistant breast cancer.
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Affiliation(s)
- Ji Won Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Jaya Gautam
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongsangbuk-do 712-749, Republic of Korea
| | - Ji Eun Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Jung-Ae Kim
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongsangbuk-do 712-749, Republic of Korea
| | - Keon Wook Kang
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
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The Role of Tumor Microenvironment and Impact of Cancer Stem Cells on Breast Cancer Progression and Growth. SERBIAN JOURNAL OF EXPERIMENTAL AND CLINICAL RESEARCH 2019. [DOI: 10.2478/sjecr-2018-0018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Breast cancer is not only a mass of genetically abnormal tissue in the breast. This is a well-organized system of a complex heterogeneous tissue. Cancer cells produce regulatory signals that stimulate stromal cells to proliferate and migrate; then, stromal elements respond to these signals by releasing components necessary for tumor development that provide structural support, vasculature, and extracellular matrices. Developing tumors can mobilize a variety of cell types from both local and distant niches via secret chemical factors derived from cancer cells themselves or neighboring cells disrupted by growing neoplasm, such as fibroblasts, immune inflammatory cells, and endothelial cells. CSCs are a group of very few cells that are tumorigenic (able to form tumors) and are defined as those cells within a tumor that can self-renew and lead to tumorigenesis. BCSCs represent a small population of cells that have stem cell characteristics and are related to breast cancer. There are different theories about the origin of BCSCs. BCSCs are responsible for breast carcinoma metastasis. Usually, there is a metastatic spread to the bones, and rarely to the lungs and liver. A phenomenon that allows BCSCs to make the transition from epithelial to mesenchymal expression and thus avoid the effect of cytotoxic agents is the epithelial-mesenchymal transition (EMT). During this process, cells change their molecular characteristics in terms of loss of epithelial characteristics taking the mesenchymal phenotype. This process plays a key role in the progression, invasion, and metastasis of breast tumors.
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32
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Nur Husna SM, Tan HTT, Mohamud R, Dyhl-Polk A, Wong KK. Inhibitors targeting CDK4/6, PARP and PI3K in breast cancer: a review. Ther Adv Med Oncol 2018; 10:1758835918808509. [PMID: 30542378 PMCID: PMC6236629 DOI: 10.1177/1758835918808509] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 09/27/2018] [Indexed: 12/11/2022] Open
Abstract
Breast cancer is the global leading cause of cancer-related death in women and it
represents a major health burden worldwide. One of the promising breast cancer
therapeutic avenues is through small molecule inhibitors (SMIs) which have
undergone rapid progress with successful clinical trials. Recently, three
emerging and vital groups of proteins are targeted by SMIs for breast cancer
treatment, namely cyclin-dependent kinase 4 and 6 (CDK4/6), poly (adenosine
diphosphate-ribose) polymerase (PARP) and phosphoinositide 3-kinase (PI3K).
Several of these inhibitors have been approved for the treatment of breast
cancer patients or progressed into late-stage clinical trials. Thus, modeling
from these successful clinical trials, as well as their limitations, is pivotal
for future development and trials of other inhibitors or therapeutic regimens
targeting breast cancer patients. In this review, we discuss eight recently
approved or novel SMIs against CDK4/6 (palbociclib, ribociclib and abemaciclib),
PARP (olaparib, veliparib and talazoparib), and PI3K (buparlisib and alpelisib).
The mechanisms of action, series of clinical trials and limitations are
described for each inhibitor.
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Affiliation(s)
- Siti Muhamad Nur Husna
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Hern-Tze Tina Tan
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Rohimah Mohamud
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Anne Dyhl-Polk
- Department of Oncology, Herlev-Gentofte University Hospital, Herlev, Denmark
| | - Kah Keng Wong
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, 16150, Malaysia
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Expression of calcium pumps is differentially regulated by histone deacetylase inhibitors and estrogen receptor alpha in breast cancer cells. BMC Cancer 2018; 18:1029. [PMID: 30352569 PMCID: PMC6199715 DOI: 10.1186/s12885-018-4945-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 10/12/2018] [Indexed: 12/24/2022] Open
Abstract
Background Remodeling of Ca2+ signaling is an important step in cancer progression, and altered expression of members of the Ca2+ signaling toolkit including the plasma membrane Ca2+ ATPases (PMCA proteins encoded by ATP2B genes) is common in tumors. Methods In this study PMCAs were examined in breast cancer datasets and in a variety of breast cancer cell lines representing different subtypes. We investigated how estrogen receptor alpha (ER-α) and histone deacetylase (HDAC) inhibitors regulate the expression of these pumps. Results Three distinct datasets displayed significantly lower ATP2B4 mRNA expression in invasive breast cancer tissue samples compared to normal breast tissue, whereas the expression of ATP2B1 and ATP2B2 was not altered. Studying the protein expression profiles of Ca2+ pumps in a variety of breast cancer cell lines revealed low PMCA4b expression in the ER-α positive cells, and its marked upregulation upon HDAC inhibitor treatments. PMCA4b expression was also positively regulated by the ER-α pathway in MCF-7 cells that led to enhanced Ca2+ extrusion capacity in response to 17β-estradiol (E2) treatment. E2-induced PMCA4b expression was further augmented by HDAC inhibitors. Surprisingly, E2 did not affect the expression of PMCA4b in other ER-α positive cells ZR-75-1, T-47D and BT-474. These findings were in good accordance with ChIP-seq data analysis that revealed an ER-α binding site in the ATP2B4 gene in MCF-7 cells but not in other ER-α positive tumor cells. In the triple negative cells PMCA4b expression was relatively high, and the effect of HDAC inhibitor treatment was less pronounced as compared to that of the ER-α positive cells. Although, the expression of PMCA4b was relatively high in the triple negative cells, a fraction of the protein was found in intracellular compartments that could interfere with the cellular function of the protein. Conclusions Our results suggest that the expression of Ca2+ pumps is highly regulated in breast cancer cells in a subtype specific manner. Our results suggest that hormonal imbalances, epigenetic modifications and impaired protein trafficking could interfere with the expression and cellular function of PMCA4b in the course of breast cancer progression. Electronic supplementary material The online version of this article (10.1186/s12885-018-4945-x) contains supplementary material, which is available to authorized users.
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Teo K, Gómez-Cuadrado L, Tenhagen M, Byron A, Rätze M, van Amersfoort M, Renes J, Strengman E, Mandoli A, Singh AA, Martens JH, Stunnenberg HG, van Diest PJ, Brunton VG, Derksen PWB. E-cadherin loss induces targetable autocrine activation of growth factor signalling in lobular breast cancer. Sci Rep 2018; 8:15454. [PMID: 30337563 PMCID: PMC6193986 DOI: 10.1038/s41598-018-33525-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 09/11/2018] [Indexed: 12/13/2022] Open
Abstract
Despite the fact that loss of E-cadherin is causal to the development and progression of invasive lobular carcinoma (ILC), options to treat this major breast cancer subtype are limited if tumours develop resistance to anti-oestrogen treatment regimens. This study aimed to identify clinically targetable pathways that are aberrantly active downstream of E-cadherin loss in ILC. Using a combination of reverse-phase protein array (RPPA) analyses, mRNA sequencing, conditioned medium growth assays and CRISPR/Cas9-based knock-out experiments, we demonstrate that E-cadherin loss causes increased responsiveness to autocrine growth factor receptor (GFR)-dependent activation of phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K)/Akt signalling. Autocrine activation of GFR signalling and its downstream PI3K/Akt hub was independent of oncogenic mutations in PIK3CA, AKT1 or PTEN. Analyses of human ILC samples confirmed growth factor production and pathway activity. Pharmacological inhibition of Akt using AZD5363 or MK2206 resulted in robust inhibition of cell growth and survival of ILC cells, and impeded tumour growth in a mouse ILC model. Because E-cadherin loss evokes hypersensitisation of PI3K/Akt activation independent of oncogenic mutations in this pathway, we propose clinical intervention of PI3K/Akt in ILC based on functional E-cadherin inactivation, irrespective of activating pathway mutations.
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Affiliation(s)
- Katy Teo
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Laura Gómez-Cuadrado
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Milou Tenhagen
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Adam Byron
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Max Rätze
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Jojanneke Renes
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Eric Strengman
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Amit Mandoli
- Department of Molecular Biology, Faculty of Science, Nijmegen Centre for Molecular Life Sciences, Radboud University, Nijmegen, The Netherlands
| | - Abhishek A Singh
- Department of Molecular Biology, Faculty of Science, Nijmegen Centre for Molecular Life Sciences, Radboud University, Nijmegen, The Netherlands
| | - Joost H Martens
- Department of Molecular Biology, Faculty of Science, Nijmegen Centre for Molecular Life Sciences, Radboud University, Nijmegen, The Netherlands
| | - Hendrik G Stunnenberg
- Department of Molecular Biology, Faculty of Science, Nijmegen Centre for Molecular Life Sciences, Radboud University, Nijmegen, The Netherlands
| | - Paul J van Diest
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Valerie G Brunton
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom.
| | - Patrick W B Derksen
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands.
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Kruger DT, Beelen KJ, Opdam M, Sanders J, van der Noort V, Boven E, Linn SC. Hierarchical clustering of activated proteins in the PI3K and MAPK pathways in ER-positive, HER2-negative breast cancer with potential therapeutic consequences. Br J Cancer 2018; 119:832-839. [PMID: 30287915 PMCID: PMC6189147 DOI: 10.1038/s41416-018-0221-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 07/13/2018] [Accepted: 07/17/2018] [Indexed: 12/11/2022] Open
Abstract
Background The phosphatidylinositol-3-kinase (PI3K) and/or mitogen-activated protein kinase (MAPK) pathways are frequently activated in breast cancer which can result in antioestrogen resistance. Single protein markers failed to be introduced into clinical practice. We, therefore, aimed to find a better read-out of activation of the PI3K and MAPK pathways in ER+/HER2− breast cancer. Assessment of seven PI3K/MAPK proteins might better reflect pathway activation and distinguish patients without adjuvant tamoxifen benefit. Methods Tumour blocks were recollected from 293 primary postmenopausal ER+/HER2− breast cancer patients randomised between tamoxifen and no adjuvant therapy. PTEN, p-AKT(Thr308), p-AKT(Ser473), p-p70S6K, p-4EBP1, p-ERK1/2 and p-S6RP expression was assessed by immunohistochemistry followed by unsupervised hierarchical clustering. The primary endpoint was recurrence-free interval. Multivariate Cox models were used to assess tamoxifen benefit. A classification tool was developed based on protein expression profile. Results Subgroups were identified with preferentially activated (A) and preferentially not activated (N) proteins. Patients in group N derived significant benefit from tamoxifen (multivariate hazard ratio (HR) = 0.23, p = 0.000101), while patients from group A did not (multivariate HR = 1.37, p = 0.64), p for interaction 0.020. Our generated classification tool confirmed these results (p for interaction 0.024). Conclusions Hierarchical clustering of seven PI3K/MAPK proteins reflects pathway activation and can guide treatment decisions in primary ER+/HER2− postmenopausal breast cancer patients.
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Affiliation(s)
- Dinja T Kruger
- Department of Medical Oncology, VU University Medical Centre, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands.,Division of Molecular Pathology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - Karin J Beelen
- Division of Molecular Pathology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands.,Department of Medical Oncology, Reinier de Graaf Groep, Reinier de Graafweg 5, 2625 AD, Delft, The Netherlands
| | - Mark Opdam
- Division of Molecular Pathology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - Joyce Sanders
- Department of Pathology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - Vincent van der Noort
- Division of Biometrics, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - Epie Boven
- Department of Medical Oncology, VU University Medical Centre, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands
| | - Sabine C Linn
- Division of Molecular Pathology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands. .,Department of Medical Oncology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands. .,Department of Pathology, University Medical Centre Utrecht, and Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands.
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36
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Khanna P, Lee JS, Sereemaspun A, Lee H, Baeg GH. GRAMD1B regulates cell migration in breast cancer cells through JAK/STAT and Akt signaling. Sci Rep 2018; 8:9511. [PMID: 29934528 PMCID: PMC6015000 DOI: 10.1038/s41598-018-27864-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 06/12/2018] [Indexed: 12/22/2022] Open
Abstract
Dysregulated JAK/STAT signaling has been implicated in breast cancer metastasis, which is associated with high relapse risks. However, mechanisms underlying JAK/STAT signaling-mediated breast tumorigenesis are poorly understood. Here, we showed that GRAMD1B expression is upregulated on IL-6 but downregulated upon treatment with the JAK2 inhibitor AG490 in the breast cancer MDA-MB-231 cells. Notably, Gramd1b knockdown caused morphological changes of the cells, characterized by the formation of membrane ruffling and protrusions, implicating its role in cell migration. Consistently, GRAMD1B inhibition significantly enhanced cell migration, with an increase in the levels of the Rho family of GTPases. We also found that Gramd1b knockdown-mediated pro-migratory phenotype is associated with JAK2/STAT3 and Akt activation, and that JAK2 or Akt inhibition efficiently suppresses the phenotype. Interestingly, AG490 dose-dependently increased p-Akt levels, and our epistasis analysis suggested that the effect of JAK/STAT inhibition on p-Akt is via the regulation of GRAMD1B expression. Taken together, our results suggest that GRAMD1B is a key signaling molecule that functions to inhibit cell migration in breast cancer by negating both JAK/STAT and Akt signaling, providing the foundation for its development as a novel biomarker in breast cancer.
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Affiliation(s)
- Puja Khanna
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, MD10, 4 Medical Drive, 117594, Singapore
| | - Joan Shuying Lee
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, MD10, 4 Medical Drive, 117594, Singapore
| | - Amornpun Sereemaspun
- Department of Anatomy, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Haeryun Lee
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, 37673, South Korea
| | - Gyeong Hun Baeg
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, MD10, 4 Medical Drive, 117594, Singapore.
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Cretella D, Ravelli A, Fumarola C, La Monica S, Digiacomo G, Cavazzoni A, Alfieri R, Biondi A, Generali D, Bonelli M, Petronini PG. The anti-tumor efficacy of CDK4/6 inhibition is enhanced by the combination with PI3K/AKT/mTOR inhibitors through impairment of glucose metabolism in TNBC cells. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:72. [PMID: 29587820 PMCID: PMC5872523 DOI: 10.1186/s13046-018-0741-3] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 03/19/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Daniele Cretella
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Andrea Ravelli
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Claudia Fumarola
- Department of Medicine and Surgery, University of Parma, Parma, Italy.
| | - Silvia La Monica
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | | | - Andrea Cavazzoni
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Roberta Alfieri
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Alessandra Biondi
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Daniele Generali
- Department of Medical, Surgery and Health Sciences, University of Trieste, Trieste, Italy.,U.O. Multidisciplinare di Patologia Mammaria, U.S Terapia Molecolare e Farmacogenomica, ASST Cremona, Cremona, Italy
| | - Mara Bonelli
- Department of Medicine and Surgery, University of Parma, Parma, Italy
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38
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Paul JM, Toosi B, Vizeacoumar FS, Bhanumathy KK, Li Y, Gerger C, El Zawily A, Freywald T, Anderson DH, Mousseau D, Kanthan R, Zhang Z, Vizeacoumar FJ, Freywald A. Targeting synthetic lethality between the SRC kinase and the EPHB6 receptor may benefit cancer treatment. Oncotarget 2018; 7:50027-50042. [PMID: 27418135 PMCID: PMC5226566 DOI: 10.18632/oncotarget.10569] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 06/17/2016] [Indexed: 12/11/2022] Open
Abstract
Application of tumor genome sequencing has identified numerous loss-of-function alterations in cancer cells. While these alterations are difficult to target using direct interventions, they may be attacked with the help of the synthetic lethality (SL) approach. In this approach, inhibition of one gene causes lethality only when another gene is also completely or partially inactivated. The EPHB6 receptor tyrosine kinase has been shown to have anti-malignant properties and to be downregulated in multiple cancers, which makes it a very attractive target for SL applications. In our work, we used a genome-wide SL screen combined with expression and interaction network analyses, and identified the SRC kinase as a SL partner of EPHB6 in triple-negative breast cancer (TNBC) cells. Our experiments also reveal that this SL interaction can be targeted by small molecule SRC inhibitors, SU6656 and KX2-391, and can be used to improve elimination of human TNBC tumors in a xenograft model. Our observations are of potential practical importance, since TNBC is an aggressive heterogeneous malignancy with a very high rate of patient mortality due to the lack of targeted therapies, and our work indicates that FDA-approved SRC inhibitors may potentially be used in a personalized manner for treating patients with EPHB6-deficient TNBC. Our findings are also of a general interest, as EPHB6 is downregulated in multiple malignancies and our data serve as a proof of principle that EPHB6 deficiency may be targeted by small molecule inhibitors in the SL approach.
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Affiliation(s)
- James M Paul
- Department of Biochemistry, University of Saskatchewan, Saskatoon, SK, S7N 5E5, Canada
| | - Behzad Toosi
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Saskatchewan, Royal University Hospital, Saskatoon, SK, S7N 0W8, Canada
| | - Frederick S Vizeacoumar
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Saskatchewan, Royal University Hospital, Saskatoon, SK, S7N 0W8, Canada
| | - Kalpana Kalyanasundaram Bhanumathy
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Saskatchewan, Royal University Hospital, Saskatoon, SK, S7N 0W8, Canada
| | - Yue Li
- Department of Computer Science, University of Toronto, Toronto, ON, M5S 3G4, Canada.,The Donnelly Centre, University of Toronto, Toronto, ON, M5S 3E1, Canada.,Present address: Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Courtney Gerger
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Saskatchewan, Royal University Hospital, Saskatoon, SK, S7N 0W8, Canada
| | - Amr El Zawily
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Saskatchewan, Royal University Hospital, Saskatoon, SK, S7N 0W8, Canada.,Faculty of Science, Damanhour University, Damanhour, 22516, Egypt
| | - Tanya Freywald
- Cancer Research, Saskatchewan Cancer Agency, Saskatoon, SK, S7N 5E5, Canada
| | - Deborah H Anderson
- Cancer Research, Saskatchewan Cancer Agency, Saskatoon, SK, S7N 5E5, Canada
| | - Darrell Mousseau
- Cell Signaling Laboratory, Neuroscience Cluster, University of Saskatchewan, Saskatoon, SK, S7N 5E5, Canada
| | - Rani Kanthan
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Saskatchewan, Royal University Hospital, Saskatoon, SK, S7N 0W8, Canada
| | - Zhaolei Zhang
- Department of Computer Science, University of Toronto, Toronto, ON, M5S 3G4, Canada.,The Donnelly Centre, University of Toronto, Toronto, ON, M5S 3E1, Canada
| | - Franco J Vizeacoumar
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Saskatchewan, Royal University Hospital, Saskatoon, SK, S7N 0W8, Canada.,Cancer Research, Saskatchewan Cancer Agency, Saskatoon, SK, S7N 5E5, Canada
| | - Andrew Freywald
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Saskatchewan, Royal University Hospital, Saskatoon, SK, S7N 0W8, Canada
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39
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Liu M, Xu S, Wang Y, Li Y, Li Y, Zhang H, Liu H, Chen J. PD 0332991, a selective cyclin D kinase 4/6 inhibitor, sensitizes lung cancer cells to treatment with epidermal growth factor receptor tyrosine kinase inhibitors. Oncotarget 2018; 7:84951-84964. [PMID: 27825114 PMCID: PMC5356711 DOI: 10.18632/oncotarget.13069] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 09/27/2016] [Indexed: 01/29/2023] Open
Abstract
Acquired resistance to epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) is a major challenge to targeted therapy for non-small cell lung cancer (NSCLC). We investigated whether a cyclin D kinase 4/6 (CDK4/6) inhibitor, PD 0332991, could reverse EGFR-TKI resistance in human lung cancer cells and explored the underlying mechanisms. We found that PD 0332991 potentiated gefitinib-induced growth inhibition in both EGFR-TKI-sensitive (PC-9) and EGFR-TKI-resistant (PC-9/AB2) cells by down-regulating proliferation and inducing apoptosis and G0/G1 cell cycle arrest. Tumor xenografts were then used to verify the effects of PD 0332991 in vivo. Mice treated with a combination of PD 0332991 and gefitinib had the fastest tumor regression and delayed relapse. Tumors from mice receiving the combination treatment exhibited down-regulated proliferation, up-regulated apoptosis, and less angiogenesis. Finally, lung adenocarcinoma patients with acquired resistance to EGFR-TKIs were given an exploratory treatment of PD 0332991. One patient with gefitinib resistance exhibited clinical remission after treatment with PD 0332991. These findings suggest PD 0332991 reverses acquired EGFR-TKI-resistance in NSCLC cells, and may provide a novel treatment strategy for NSLSC patients with EGFR-TKI resistance.
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Affiliation(s)
- Minghui Liu
- Department of Lung Cancer Surgery, Lung Cancer Institute, Tianjin Medical University General Hospital, 300052, Tianjin, China
| | - Song Xu
- Department of Lung Cancer Surgery, Lung Cancer Institute, Tianjin Medical University General Hospital, 300052, Tianjin, China.,Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, 300052, Tianjin, China
| | - Yuli Wang
- Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, 300052, Tianjin, China
| | - Ying Li
- Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, 300052, Tianjin, China
| | - Yongwen Li
- Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, 300052, Tianjin, China
| | - Hongbing Zhang
- Department of Lung Cancer Surgery, Lung Cancer Institute, Tianjin Medical University General Hospital, 300052, Tianjin, China
| | - Hongyu Liu
- Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, 300052, Tianjin, China
| | - Jun Chen
- Department of Lung Cancer Surgery, Lung Cancer Institute, Tianjin Medical University General Hospital, 300052, Tianjin, China.,Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, 300052, Tianjin, China
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40
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Kumar D, Haldar S, Gorain M, Kumar S, Mulani FA, Yadav AS, Miele L, Thulasiram HV, Kundu GC. Epoxyazadiradione suppresses breast tumor growth through mitochondrial depolarization and caspase-dependent apoptosis by targeting PI3K/Akt pathway. BMC Cancer 2018; 18:52. [PMID: 29310608 PMCID: PMC5759831 DOI: 10.1186/s12885-017-3876-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 12/04/2017] [Indexed: 12/20/2022] Open
Abstract
Background Breast cancer is one of the most commonly diagnosed invasive cancers among women around the world. Among several subtypes, triple negative breast cancer (TNBC) is highly aggressive and chemoresistant. Treatment of TNBC patients has been challenging due to heterogeneity and devoid of well-defined molecular targets. Thus, identification of novel effective and selective agents against TNBC is essential. Methods We used epoxyazadiradione to assess the cell viability, mitochondrial potential, ROS level, cell migration, apoptosis and protein expression in cell culture models of TNBC MDA-MB-231 and ER+ MCF-7 breast cancer cells. The molecular mechanism was examined in two different type of breast cancer cells in response to epoxyazadiradione. We have also analyzed the effect of epoxyazadiradione on breast tumor growth using in vivo mice model. Results In this study, we for the first time investigated that out of 10 major limonoids isolated from Azadirachta indica, epoxyazadiradione exhibits most potent anti-cancer activity in both TNBC and ER+ breast cancer cells. Epoxyazadiradione induces apoptosis and inhibits PI3K/Akt-mediated mitochondrial potential, cell viability, migration and angiogenesis. It also inhibits the expression of pro-angiogenic and pro-metastatic genes such as Cox2, OPN, VEGF and MMP-9 in these cells. Furthermore, epoxyazadiradione attenuates PI3K/Akt-mediated AP-1 activation. Our in vivo data revealed that epoxyazadiradione suppresses breast tumor growth and angiogenesis in orthotopic NOD/SCID mice model. Conclusion Our findings demonstrate that epoxyazadiradione inhibits PI3K/Akt-dependent mitochondrial depolarisation, induces apoptosis and attenuates cell migration, angiogenesis and breast tumor growth suggesting that this compound may act as a potent therapeutic agent for the management of breast cancer. Electronic supplementary material The online version of this article (10.1186/s12885-017-3876-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Dhiraj Kumar
- Laboratory of Tumor Biology, Angiogenesis and Nanomedicine Research, National Centre for Cell Science (NCCS), Pune, 411007, India
| | - Saikat Haldar
- Chemical Biology Unit, Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune, 411008, India
| | - Mahadeo Gorain
- Laboratory of Tumor Biology, Angiogenesis and Nanomedicine Research, National Centre for Cell Science (NCCS), Pune, 411007, India
| | - Santosh Kumar
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center, Washington D.C., 20057, USA
| | - Fayaj A Mulani
- Chemical Biology Unit, Division of Organic Chemistry, CSIR-National Chemical Laboratory, Pune, 411008, India
| | - Amit S Yadav
- Laboratory of Tumor Biology, Angiogenesis and Nanomedicine Research, National Centre for Cell Science (NCCS), Pune, 411007, India
| | - Lucio Miele
- Department of Genetics, LSU Health Sciences Center, New Orleans, LA, 70112, USA
| | | | - Gopal C Kundu
- Laboratory of Tumor Biology, Angiogenesis and Nanomedicine Research, National Centre for Cell Science (NCCS), Pune, 411007, India.
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41
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Shao Y, Shen YQ, Li YL, Liang C, Zhang BJ, Lu SD, He YY, Wang P, Sun QL, Jin YX, Ma ZL. Direct repression of the oncogene CDK4 by the tumor suppressor miR-486-5p in non-small cell lung cancer. Oncotarget 2017; 7:34011-21. [PMID: 27049724 PMCID: PMC5085134 DOI: 10.18632/oncotarget.8514] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Accepted: 03/17/2016] [Indexed: 01/11/2023] Open
Abstract
MicroRNAs are a class of non-coding single-stranded RNA, 20-23 nucleotide in length, which can be involved in the regulation of gene expression. Through binding with 3′-untranslated regions (3′-UTR), microRNAs can cause degradation of target mRNAs or inhibition of translation, and thus regulating the expression of genes at the post-transcriptional level. In this study, we found that miR-486-5p was significantly downregulated in non-small cell lung cancer (NSCLC) tissues and cell lines, suggesting that miR-486-5p might function as a tumor suppressor in lung cancer. Additionally, we showed that CDK4, an oncogene that plays an important role in cell cycle G1/S phase progression, was directly targeted by miR-486-5p. Furthermore, our data reveals that knockdown of CDK4 by siRNA can inhibit cell proliferation, promote apoptosis, and impede cell-cycle progression. In epigenetics, the upstream promoter of miR-486-5p was strongly regulated by methylation in NSCLC. Collectively, our results suggest that miR-486-5p could not only inhibit NSCLC by downregulating the expression of CDK4, but also be as a promising and potent therapy in the near future.
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Affiliation(s)
- Yang Shao
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Yu-Qing Shen
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Yan-Li Li
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Chen Liang
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Bing-Jie Zhang
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Sheng-Di Lu
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yan-Yun He
- School of Life Sciences, Shanghai University, Shanghai, China.,Experimental Center for Life Sciences, Shanghai University, Shanghai, China
| | - Ping Wang
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Qiang-Ling Sun
- Central Laboratory, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - You-Xin Jin
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Zhong-Liang Ma
- School of Life Sciences, Shanghai University, Shanghai, China
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42
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O'Shaughnessy J, Petrakova K, Sonke GS, Conte P, Arteaga CL, Cameron DA, Hart LL, Villanueva C, Jakobsen E, Beck JT, Lindquist D, Souami F, Mondal S, Germa C, Hortobagyi GN. Ribociclib plus letrozole versus letrozole alone in patients with de novo HR+, HER2- advanced breast cancer in the randomized MONALEESA-2 trial. Breast Cancer Res Treat 2017; 168:127-134. [PMID: 29164421 PMCID: PMC5847028 DOI: 10.1007/s10549-017-4518-8] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 09/18/2017] [Indexed: 01/09/2023]
Abstract
PURPOSE Determine the efficacy and safety of first-line ribociclib plus letrozole in patients with de novo advanced breast cancer. METHODS Postmenopausal women with HR+ , HER2- advanced breast cancer and no prior systemic therapy for advanced disease were enrolled in the Phase III MONALEESA-2 trial (NCT01958021). Patients were randomized to ribociclib (600 mg/day; 3 weeks-on/1 week-off) plus letrozole (2.5 mg/day; continuous) or placebo plus letrozole until disease progression, unacceptable toxicity, death, or treatment discontinuation. The primary endpoint was investigator-assessed progression-free survival; predefined subgroup analysis evaluated progression-free survival in patients with de novo advanced breast cancer. Secondary endpoints included safety and overall response rate. RESULTS Six hundred and sixty-eight patients were enrolled, of whom 227 patients (34%; ribociclib plus letrozole vs placebo plus letrozole arm: n = 114 vs. n = 113) presented with de novo advanced breast cancer. Median progression-free survival was not reached in the ribociclib plus letrozole arm versus 16.4 months in the placebo plus letrozole arm in patients with de novo advanced breast cancer (hazard ratio 0.45, 95% confidence interval 0.27-0.75). The most common Grade 3/4 adverse events were neutropenia and leukopenia; incidence rates were similar to those observed in the full MONALEESA-2 population. Ribociclib dose interruptions and reductions in patients with de novo disease occurred at similar frequencies to the overall study population. CONCLUSIONS Ribociclib plus letrozole improved progression-free survival vs placebo plus letrozole and was well tolerated in postmenopausal women with HR+, HER2- de novo advanced breast cancer.
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Affiliation(s)
- Joyce O'Shaughnessy
- Texas Oncology-Baylor Charles A. Sammons Cancer Center and US Oncology Network, 3410 Worth Street, Suite 400, Dallas, TX, 75246, USA.
| | - Katarina Petrakova
- Masaryk Memorial Cancer Institute, Žlutý kopec 543/7, 656 53, Brno, Czech Republic
| | - Gabe S Sonke
- Netherlands Cancer Institute and BOOG Study Center, IJsbaanpad 9, 1076 CV, Amsterdam, The Netherlands
| | - Pierfranco Conte
- University of Padova and Istituto Oncologico Veneto, IRCCS, Via Gattamelata, 64, Padua, Italy
| | - Carlos L Arteaga
- Vanderbilt-Ingram Cancer Center, 1301 Medical Center Dr #1710, Nashville, TN, 37232, USA
| | - David A Cameron
- Edinburgh Cancer Centre, University of Edinburgh, Crewe Rd S, Edinburgh, EH4 2XR, UK
| | - Lowell L Hart
- Sarah Cannon Research Institute, Fort Myers, FL, 33916, USA
| | - Cristian Villanueva
- University Hospital of Besançon, Jean-Minjoz University Hospital, 3 Boulevard Alexandre Fleming, 25000, Besançon, France
| | - Erik Jakobsen
- Lillebaelt Hospital, Kabbeltoft 25, 7100, Vejle, Denmark
| | - Joseph T Beck
- Highlands Oncology Group, 3232 N Northhills Blvd, Fayetteville, AR, 72703, USA
| | - Deborah Lindquist
- Arizona Oncology, US Oncology Network, 3700 W State Rte 89A, Sedona, AZ, 86336, USA
| | - Farida Souami
- Novartis Pharma AG, Fabrikstrasse 2, 4056, Basel, Switzerland
| | - Shoubhik Mondal
- Novartis Pharmaceuticals Corporation, 1 Health Plaza, East Hanover, NJ, 07936, USA
| | - Caroline Germa
- Novartis Pharmaceuticals Corporation, 1 Health Plaza, East Hanover, NJ, 07936, USA
| | - Gabriel N Hortobagyi
- University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA
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43
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Yim CY, Bikorimana E, Khan E, Warzecha JM, Shin L, Rodriguez J, Dmitrovsky E, Freemantle SJ, Spinella MJ. G0S2 represses PI3K/mTOR signaling and increases sensitivity to PI3K/mTOR pathway inhibitors in breast cancer. Cell Cycle 2017; 16:2146-2155. [PMID: 28910567 DOI: 10.1080/15384101.2017.1371884] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
G0/G1 switch gene 2 (G0S2) is a direct retinoic acid target implicated in cancer biology and therapy based on frequent methylation-mediated silencing in diverse solid tumors. We recently reported that low G0S2 expression in breast cancer, particularly estrogen receptor-positive (ER+) breast cancer, correlates with increased rates of recurrence, indicating that G0S2 plays a role in breast cancer progression. However, the function(s) and mechanism(s) of G0S2 tumor suppression remain unclear. In order to determine potential mechanisms of G0S2 anti-oncogenic activity, we performed genome-wide expression analysis that revealed an enrichment of gene signatures related to PI3K/mTOR pathway activation in G0S2 null cells as compared to G0S2 wild-type cells. G0S2 null cells also exhibited a dramatic decreased sensitivity to PI3K/mTOR pathway inhibitors. Conversely, restoring G0S2 expression in human ER+ breast cancer cells decreased basal mTOR signaling and sensitized the cells to pharmacologic mTOR pathway inhibitors. Notably, we provide evidence here that the increase in recurrence seen with low G0S2 expression is especially prominent in patients who have undergone antiestrogen therapy. Further, ER+ breast cancer cells with restored G0S2 expression had a relative increased sensitivity to tamoxifen. These findings reveal that in breast cancer G0S2 functions as a tumor suppressor in part by repressing PI3K/mTOR activity, and that G0S2 enhances therapeutic responses to PI3K/mTOR inhibitors. Recent studies implicate hyperactivation of PI3K/mTOR signaling as promoting resistance to antiestrogen therapies in ER+ breast cancer. Our data establishes G0S2 as opposing this form of antiestrogen resistance. This promotes further investigation of the role of G0S2 as an antineoplastic breast cancer target and a biomarker for recurrence and therapy response.
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Affiliation(s)
- Christina Y Yim
- a Department of Comparative Biosciences , University of Illinois at Urbana-Champaign , Urbana , IL , USA
| | - Emmanuel Bikorimana
- a Department of Comparative Biosciences , University of Illinois at Urbana-Champaign , Urbana , IL , USA
| | - Ema Khan
- a Department of Comparative Biosciences , University of Illinois at Urbana-Champaign , Urbana , IL , USA
| | - Joshua M Warzecha
- a Department of Comparative Biosciences , University of Illinois at Urbana-Champaign , Urbana , IL , USA
| | - Leah Shin
- a Department of Comparative Biosciences , University of Illinois at Urbana-Champaign , Urbana , IL , USA
| | - Jennifer Rodriguez
- a Department of Comparative Biosciences , University of Illinois at Urbana-Champaign , Urbana , IL , USA
| | - Ethan Dmitrovsky
- b Departments of Cancer Biology and The University of Texas MD Anderson Cancer Center , Houston , TX , USA.,c Thoracic/Head and Neck Medical Oncology , The University of Texas MD Anderson Cancer Center , Houston , TX , USA
| | - Sarah J Freemantle
- a Department of Comparative Biosciences , University of Illinois at Urbana-Champaign , Urbana , IL , USA
| | - Michael J Spinella
- a Department of Comparative Biosciences , University of Illinois at Urbana-Champaign , Urbana , IL , USA
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44
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Tripathy D, Bardia A, Sellers WR. Ribociclib (LEE011): Mechanism of Action and Clinical Impact of This Selective Cyclin-Dependent Kinase 4/6 Inhibitor in Various Solid Tumors. Clin Cancer Res 2017; 23:3251-3262. [PMID: 28351928 PMCID: PMC5727901 DOI: 10.1158/1078-0432.ccr-16-3157] [Citation(s) in RCA: 153] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 01/12/2017] [Accepted: 03/24/2017] [Indexed: 12/16/2022]
Abstract
The cyclin D-cyclin-dependent kinase (CDK) 4/6-p16-retinoblastoma (Rb) pathway is commonly disrupted in cancer, leading to abnormal cell proliferation. Therapeutics targeting this pathway have demonstrated antitumor effects in preclinical and clinical studies. Ribociclib is a selective, orally bioavailable inhibitor of CDK4 and CDK6, which received FDA approval in March 2017 and is set to enter the treatment landscape alongside other CDK4/6 inhibitors, including palbociclib and abemaciclib. Here, we describe the mechanism of action of ribociclib and review preclinical and clinical data from phase I, II, and III trials of ribociclib across different tumor types, within the context of other selective CDK4/6 inhibitors. The pharmacokinetics, pharmacodynamics, safety, tolerability, and clinical responses with ribociclib as a single agent or in combination with other therapies are discussed, and an overview of the broad portfolio of ongoing clinical trials with ribociclib across a wide range of indications is presented. On the basis of the available data, ribociclib has a manageable tolerability profile and therapeutic potential for a variety of cancer types. Its high selectivity makes it an important partner drug for other targeted therapies, and it has been shown to enhance the clinical activity of existing anticancer therapies and delay the development of treatment resistance, without markedly increasing toxicity. Ongoing trials of doublet and triplet targeted therapies containing ribociclib seek to identify optimal CDK4/6-based targeted combination regimens for various tumor types and advance the field of precision therapeutics in oncology. Clin Cancer Res; 23(13); 3251-62. ©2017 AACR.
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Affiliation(s)
- Debu Tripathy
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
| | - Aditya Bardia
- Department of Hematology/Oncology, Massachusetts General Hospital Cancer Center/Harvard Medical School, Boston, Massachusetts
| | - William R Sellers
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts
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45
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Abstract
HER2 and CDK4/6 are undoubted two most important biological targets for breast cancer. Anti-HER2 treatments enhance objective response and progression-free survival/disease-free survival as well as overall survival. Three CDK4/6 inhibitors consistently improve objective response and progression-free survival; however, overall survival data are waited. Optimization of chemotherapy and endocrine strategies remains an unmet need. Check point inhibitor-based immunotherapy combined with chemotherapy is a promising field, especially for triple-negative breast cancer.
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Affiliation(s)
- Xichun Hu
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, 200032 China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032 China
| | - Wei Huang
- Roche Product Development in Asia Pacific.5F, Tower C, Parkview Green, No.9, Dongdaqiao Road, Chaoyang District, Beijing, 100020 People’s Republic of China
| | - Minhao Fan
- Hutchison MediPharma Limited, Building 4 917 Halei Road Zhangjiang Hi-Tech Park, Shanghai, 201203 China
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46
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Bayani J, Yao CQ, Quintayo MA, Yan F, Haider S, D’Costa A, Brookes CL, van de Velde CJH, Hasenburg A, Kieback DG, Markopoulos C, Dirix L, Seynaeve C, Rea D, Boutros PC, Bartlett JMS. Molecular stratification of early breast cancer identifies drug targets to drive stratified medicine. NPJ Breast Cancer 2017; 3:3. [PMID: 28649643 PMCID: PMC5445616 DOI: 10.1038/s41523-016-0003-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 12/13/2016] [Accepted: 12/13/2016] [Indexed: 12/28/2022] Open
Abstract
Many women with hormone receptor-positive early breast cancer can be managed effectively with endocrine therapies alone. However, additional systemic chemotherapy treatment is necessary for others. The clinical challenges in managing high-risk women are to identify existing and novel druggable targets, and to identify those who would benefit from these therapies. Therefore, we performed mRNA abundance analysis using the Tamoxifen and Exemestane Adjuvant Multinational (TEAM) trial pathology cohort to identify a signature of residual risk following endocrine therapy and pathways that are potentially druggable. A panel of genes compiled from academic and commercial multiparametric tests as well as genes of importance to breast cancer pathogenesis was used to profile 3825 patients. A signature of 95 genes, including nodal status, was validated to stratify endocrine-treated patients into high-risk and low-risk groups based on distant relapse-free survival (DRFS; Hazard Ratio = 5.05, 95% CI 3.53-7.22, p = 7.51 × 10-19). This risk signature was also found to perform better than current multiparametric tests. When the 95-gene prognostic signature was applied to all patients in the validation cohort, including patients who received adjuvant chemotherapy, the signature remained prognostic (HR = 4.76, 95% CI 3.61-6.28, p = 2.53× 10-28). Functional gene interaction analyses identified six significant modules representing pathways involved in cell cycle control, mitosis and receptor tyrosine signaling; containing a number of genes with existing targeted therapies for use in breast or other malignancies. Thus the identification of high-risk patients using this prognostic signature has the potential to also prioritize patients for treatment with these targeted therapies.
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Affiliation(s)
- Jane Bayani
- Ontario Institute for Cancer Research, Toronto, ON Canada
| | - Cindy Q. Yao
- Ontario Institute for Cancer Research, Toronto, ON Canada
| | | | - Fu Yan
- Ontario Institute for Cancer Research, Toronto, ON Canada
| | - Syed Haider
- Ontario Institute for Cancer Research, Toronto, ON Canada
| | | | - Cassandra L. Brookes
- Cancer Research UK Clinical Trials Unit, University of Birmingham, Birmingham, UK
| | | | | | | | | | - Luc Dirix
- St. Augustinus Hospital, Antwerp, Belgium
| | | | - Daniel Rea
- Cancer Research UK Clinical Trials Unit, University of Birmingham, Birmingham, UK
| | - Paul C. Boutros
- Ontario Institute for Cancer Research, Toronto, ON Canada
- University of Toronto, Toronto, Canada
| | - John M. S. Bartlett
- Ontario Institute for Cancer Research, Toronto, ON Canada
- Cancer Research UK Clinical Trials Unit, University of Birmingham, Birmingham, UK
- University of Toronto, Toronto, Canada
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47
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Sammons SL, Topping DL, Blackwell KL. HR+, HER2- Advanced Breast Cancer and CDK4/6 Inhibitors: Mode of Action, Clinical Activity, and Safety Profiles. Curr Cancer Drug Targets 2017; 17:637-649. [PMID: 28359238 PMCID: PMC5652078 DOI: 10.2174/1568009617666170330120452] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 03/08/2017] [Accepted: 03/13/2017] [Indexed: 11/23/2022]
Abstract
BACKGROUND Cyclin-dependent kinase (CDK) 4/6 inhibitor-based therapies have shown great promise in improving clinical outcomes for patients with hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) advanced breast cancer. OBJECTIVES 1. Discuss the mode of action of the three CDK4/6 inhibitors in late clinical development: palbociclib (PD-0332991; Pfizer), ribociclib (LEE011; Novartis), and abemaciclib (LY2835219; Lilly). 2. Describe the efficacy and safety data relating to their use in HR+, HER2- advanced breast cancer. 3. Discuss the key side effects associated with CDK4/6 inhibitors along with considerations for adverse event management and patient monitoring. METHOD Relevant information and data were assimilated from manuscripts, congress publications, and online sources. RESULTS CDK4/6 inhibitors have demonstrated improved progression-free survival in combination with endocrine therapy compared with endocrine therapy alone. The side-effect profile of each agent is described, along with implications for patient monitoring, and considerations for patient care providers and pharmacists. CONCLUSION Addition of a CDK4/6 inhibitor to endocrine therapy increases efficacy and delays disease progression. Insight into the unique side-effect profiles of this class of agents and effective patient monitoring will facilitate the successful use of CDK4/6 inhibitor-based therapies in the clinic.
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Affiliation(s)
- Sarah L. Sammons
- Department of Medicine, Duke University Medical Center, Duke University, Durham, NC, USA
| | - Donna L. Topping
- Department of Medicine, Duke University Medical Center, Duke University, Durham, NC, USA
| | - Kimberly L. Blackwell
- Department of Medicine, Duke University Medical Center, Duke University, Durham, NC, USA
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Chang F, Xing P, Song F, Du X, Wang G, Chen K, Yang J. The role of T-box genes in the tumorigenesis and progression of cancer. Oncol Lett 2016; 12:4305-4311. [PMID: 28105146 PMCID: PMC5228544 DOI: 10.3892/ol.2016.5296] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Accepted: 09/09/2016] [Indexed: 01/06/2023] Open
Abstract
The T-box (TBX) genes are part of an evolutionarily conserved family of transcription factors involved in organ development. They serve key roles in a number of molecular mechanisms, including proliferation, cell fate and organ identity. In addition, previous studies suggest that TBX genes have essential functions in the tumorigenesis and progression of various types of cancer. For example, TBX proteins served significant roles in carcinogenesis, proliferation and differentiation, senescence and apoptosis, invasion and migration, mesenchymal-epithelial and epithelial-mesenchymal transition, oncogenic signaling pathways and drug sensitivity. However, the exact mechanisms by which TBX genes carry out these functions have not yet been fully elucidated. The present review focuses on the role of TBX genes in cancer, with the aim of further clarifying their function. As altered levels of TBX proteins have detrimental consequences in numerous types of cancer, there is a need for further research into TBX genes, which this review may aid through providing a comprehensive insight into the topic.
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Affiliation(s)
- Fangyuan Chang
- Bone and Soft Tissue Tumor Department, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China; National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China
| | - Peipei Xing
- Bone and Soft Tissue Tumor Department, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China; National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China
| | - Fengju Song
- National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China; Epidemiology and Biostatistics Department, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China
| | - Xiaoling Du
- Department of Diagnostics, Tianjin Medical University, Tianjin 300061, P.R. China
| | - Guowen Wang
- Bone and Soft Tissue Tumor Department, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China; National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China
| | - Kexin Chen
- National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China; Epidemiology and Biostatistics Department, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China
| | - Jilong Yang
- Bone and Soft Tissue Tumor Department, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China; National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China
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49
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Massihnia D, Galvano A, Fanale D, Perez A, Castiglia M, Incorvaia L, Listì A, Rizzo S, Cicero G, Bazan V, Castorina S, Russo A. Triple negative breast cancer: shedding light onto the role of pi3k/akt/mtor pathway. Oncotarget 2016; 7:60712-60722. [PMID: 27474173 PMCID: PMC5312414 DOI: 10.18632/oncotarget.10858] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 07/14/2016] [Indexed: 12/22/2022] Open
Abstract
Breast cancer is one of the most widespread carcinoma and one of the main causes of cancer-related death worldwide, especially in women aged between 35 and 75 years. Among the different subtypes, triple negative breast cancer (TNBC) is characterized by the total absence of the estrogen-receptor (ER) and progesteron-receptor (PR) expression as well as the lack of human epidermal growth factor receptor 2 (HER2) overexpression or gene amplification. These biological characteristics confer to TNBC a higher aggressiveness and relapse risk along with poorer prognosis compared to other subtypes. Indeed, 5-years survival rate is still low and almost all patients die, despite any adjuvant treatment which at moment represents the heading pharmacological approach. To date, several clinical trials have been designed to investigate the potential role of some molecular markers, such as VEGF, EGFR, Src and mTOR, for targeted treatments in TNBC. In fact, many inhibitors of the PI3K/AKT/mTOR pathway, frequently de-regulated in TNBC, are acquiring a growing interest and several inhibitors are in preclinical development or already in early phase clinical trials. In this Review, we investigated the role of the PI3K/AKT/mTOR pathway in TNBC patients, by summarizing the molecular features that led to the distinction of different histotypes of TNBC. Furthermore, we provided an overview of the inhibition mechanisms of the mTOR and PI3K/AKT signaling pathways, highlighting the importance of integrating biological and clinical data for the development of mTOR inhibitors in order to implement targeted therapies for TNBC patients.
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Affiliation(s)
- Daniela Massihnia
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Antonio Galvano
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Daniele Fanale
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Alessandro Perez
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Marta Castiglia
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Lorena Incorvaia
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Angela Listì
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Sergio Rizzo
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Giuseppe Cicero
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Viviana Bazan
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Sergio Castorina
- Fondazione Mediterranea “G.B. Morgagni”, Catania, Italy
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Antonio Russo
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
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50
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Ali S, Rasool M, Chaoudhry H, N Pushparaj P, Jha P, Hafiz A, Mahfooz M, Abdus Sami G, Azhar Kamal M, Bashir S, Ali A, Sarwar Jamal M. Molecular mechanisms and mode of tamoxifen resistance in breast cancer. Bioinformation 2016; 12:135-139. [PMID: 28149048 PMCID: PMC5267957 DOI: 10.6026/97320630012135] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Revised: 05/02/2016] [Accepted: 05/05/2016] [Indexed: 11/23/2022] Open
Abstract
Breast cancer is one of the most common cancers in women around the globe Tamoxifen is used for the last 40 years as an endocrine
therapy for breast cancer. This resulted in the reduction of mortality rate by 30% and it still remains one of the most effective therapies
against breast cancer. However, resistance against tamoxifen is still one of the major hurdles in the effective management of breast
cancer. Intense research has been conducted in the past decade to further explore its resistance mechanism, but still a lot of research
will be needed to effectively alleviate this problem. Several biochemical factors and molecular pathways, such as the modulation of ER
signaling, upregulation of growth factors had been observed as key factors for tamoxifen resistance (TR). After, initial therapy of five to
ten years, breast cancer patients develops resistance towards this drug. The resistance leads to the development of other cancers like
uterine cancer. Here, we briefly explore all the molecular events related to tamoxifen resistance and focus on its mechanism of action as
well as other pharmacological approaches to better its beneficial effects in the treatment of breast carcinoma.
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Affiliation(s)
- Shazia Ali
- School of life science, Jawaharlal Nehru University, New Delhi, India
| | - Mahmood Rasool
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hani Chaoudhry
- Department of Biochemistry, Faculty of Science, Center of Innovation in Personalized Medicine, King Fahd Center for Medical Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Peter N Pushparaj
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Prakash Jha
- Department of Computer Science, Jamia Millia Islamia, New Delhi, India
| | | | - Maryam Mahfooz
- Department of Computer Science, Jamia Millia Islamia, New Delhi, India
| | | | - Mohammad Azhar Kamal
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Sania Bashir
- Department of Biotechnology, Jamia Millia Islamia, New Delhi, India
| | - Ashraf Ali
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Mohammad Sarwar Jamal
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
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