1
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Audrey A, Kok YP, Yu S, de Haan L, van de Kooij B, van den Tempel N, Chen M, de Boer HR, van der Vegt B, van Vugt MATM. RAD52-dependent mitotic DNA synthesis is required for genome stability in Cyclin E1-overexpressing cells. Cell Rep 2024; 43:114116. [PMID: 38625790 DOI: 10.1016/j.celrep.2024.114116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 02/28/2024] [Accepted: 03/29/2024] [Indexed: 04/18/2024] Open
Abstract
Overexpression of Cyclin E1 perturbs DNA replication, resulting in DNA lesions and genomic instability. Consequently, Cyclin E1-overexpressing cancer cells increasingly rely on DNA repair, including RAD52-mediated break-induced replication during interphase. We show that not all DNA lesions induced by Cyclin E1 overexpression are resolved during interphase. While DNA lesions upon Cyclin E1 overexpression are induced in S phase, a significant fraction of these lesions is transmitted into mitosis. Cyclin E1 overexpression triggers mitotic DNA synthesis (MiDAS) in a RAD52-dependent fashion. Chemical or genetic inactivation of MiDAS enhances mitotic aberrations and persistent DNA damage. Mitosis-specific degradation of RAD52 prevents Cyclin E1-induced MiDAS and reduces the viability of Cyclin E1-overexpressing cells, underscoring the relevance of RAD52 during mitosis to maintain genomic integrity. Finally, analysis of breast cancer samples reveals a positive correlation between Cyclin E1 amplification and RAD52 expression. These findings demonstrate the importance of suppressing mitotic defects in Cyclin E1-overexpressing cells through RAD52.
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Affiliation(s)
- Anastasia Audrey
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - Yannick P Kok
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - Shibo Yu
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - Lauren de Haan
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - Bert van de Kooij
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - Nathalie van den Tempel
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - Mengting Chen
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - H Rudolf de Boer
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - Bert van der Vegt
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands
| | - Marcel A T M van Vugt
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713GZ Groningen, the Netherlands.
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2
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Ye M, Xu H, Ding J, Jiang L. Therapy for Hormone Receptor-Positive, Human Epidermal Growth Receptor 2-Negative Metastatic Breast Cancer Following Treatment Progression via CDK4/6 Inhibitors: A Literature Review. BREAST CANCER (DOVE MEDICAL PRESS) 2024; 16:181-197. [PMID: 38617842 PMCID: PMC11016260 DOI: 10.2147/bctt.s438366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 01/16/2024] [Indexed: 04/16/2024]
Abstract
Endocrine therapy (ET) with a cyclin-dependent kinase 4/6 inhibitor (CDK4/6i) is currently the first-line standard treatment for most patients with hormone receptor-positive (HR+) and human epidermal growth receptor 2-negative (HER2-) metastatic or advanced breast cancer. However, the majority of tumors response to and eventually develop resistance to CDK4/6is. The mechanisms of resistance are poorly understood, and the optimal postprogression treatment regimens and their sequences continue to evolve in the rapidly changing treatment landscape. In this review, we generally summarize the mechanisms of resistance to CDK4/6is and ET, and describe the findings from clinical trials using small molecule inhibitors, antibody-drug conjugates and immunotherapy, providing insights into how these novel strategies may reverse treatment resistance, and discussing how some have not translated into clinical benefit. Finally, we provide rational treatment strategies based on the current emerging evidence.
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Affiliation(s)
- Meixi Ye
- The Affiliated Lihuili Hospital, Ningbo University, Ningbo, 315040, People’s Republic of China
| | - Hao Xu
- The Affiliated Lihuili Hospital, Ningbo University, Ningbo, 315040, People’s Republic of China
| | - Jinhua Ding
- Department of Breast and Thyroid Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, 315040, People’s Republic of China
| | - Li Jiang
- Department of General Practice, Ningbo Medical Center Lihuili Hospital, Ningbo, 315040, People’s Republic of China
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3
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Chen M, Yu S, van der Sluis T, Zwager MC, Schröder CP, van der Vegt B, van Vugt MATM. cGAS-STING pathway expression correlates with genomic instability and immune cell infiltration in breast cancer. NPJ Breast Cancer 2024; 10:1. [PMID: 38167507 PMCID: PMC10761738 DOI: 10.1038/s41523-023-00609-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 12/05/2023] [Indexed: 01/05/2024] Open
Abstract
Genomic instability, as caused by oncogene-induced replication stress, can lead to the activation of inflammatory signaling, involving the cGAS-STING and JAK-STAT pathways. Inflammatory signaling has been associated with pro-tumorigenic features, but also with favorable response to treatment, including to immune checkpoint inhibition. In this study, we aim to explore relations between inflammatory signaling, markers of replication stress, and immune cell infiltration in breast cancer. Expression levels of cGAS-STING signaling components (STING, phospho-TBK1, and phospho-STAT1), replication stress markers (γH2AX and pRPA), replication stress-related proto-oncogenes (Cyclin E1 and c-Myc) and immune cell markers (CD20, CD4, and CD57) are determined immunohistochemically on primary breast cancer samples (n = 380). RNA-sequencing data from TCGA (n = 1082) and METABRIC (n = 1904) are used to calculate cGAS-STING scores. pTBK1, pSTAT1 expression and cGAS-STING pathway scores are all increased in triple-negative breast cancers compared to other subtypes. Expression of γH2AX, pRPA, Cyclin E1, c-Myc, and immune cell infiltration positively correlate with p-STAT1 expression (P < 0.001). Additionally, we observe significant positive associations between expression of pTBK1 and γH2AX, pRPA, c-Myc, and number of CD4+ cells and CD20+ cells. Also, cGAS-STING scores are correlated with genomic instability metrics, such as homologous recombination deficiency (P < 0.001) and tumor mutational burden (P < 0.01). Moreover, data from the I-SPY2 clinical trial (n = 71) confirms that higher cGAS-STING scores are observed in breast cancer patients who responded to immunotherapy combined with chemotherapy. In conclusion, the cGAS-STING pathway is highly expressed in TNBCs and is correlated with genomic instability and immune cell infiltration.
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Affiliation(s)
- Mengting Chen
- Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Shibo Yu
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Tineke van der Sluis
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Mieke C Zwager
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Carolien P Schröder
- Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Department of Medical Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Bert van der Vegt
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Marcel A T M van Vugt
- Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
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4
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Xu H, Zeng S, Wang Y, Yang T, Wang M, Li X, He Y, Peng X, Li X, Qiao Q, Zhang J. Cytoplasmic SIRT1 promotes paclitaxel resistance in ovarian carcinoma through increased formation and survival of polyploid giant cancer cells. J Pathol 2023; 261:210-226. [PMID: 37565313 DOI: 10.1002/path.6167] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/13/2023] [Accepted: 06/20/2023] [Indexed: 08/12/2023]
Abstract
Therapeutic resistance is a notable cause of death in patients with ovarian carcinoma. Polyploid giant cancer cells (PGCCs), commonly arising in tumor tissues following chemotherapy, have recently been considered to contribute to drug resistance. As a type III deacetylase, Sirtuin1 (SIRT1) plays essential roles in the cell cycle, cellular senescence, and drug resistance. Accumulating evidence has suggested that alteration in its subcellular localization via nucleocytoplasmic shuttling is a critical process influencing the functions of SIRT1. However, the roles of SIRT1 subcellular localization in PGCC formation and subsequent senescence escape remain unclear. In this study, we compared the differences in the polyploid cell population and senescence state of PGCCs following paclitaxel treatment between tumor cells overexpressing wild-type SIRT1 (WT SIRT1) and those expressing nuclear localization sequence (NLS)-mutated SIRT1 (SIRT1NLSmt ). We investigated the involvement of cytoplasmic SIRT1 in biological processes and signaling pathways, including the cell cycle and cellular senescence, in ovarian carcinoma cells' response to paclitaxel treatment. We found that the SIRT1NLSmt tumor cell population contained more polyploid cells and fewer senescent PGCCs than the SIRT1-overexpressing tumor cell population. Comparative proteomic analyses using co-immunoprecipitation (Co-IP) combined with liquid chromatography-mass spectrometry (LC-MS)/MS showed the differences in the differentially expressed proteins related to PGCC formation, cell growth, and death, including CDK1 and CDK2, between SIRT1NLSmt and SIRT1 cells or PGCCs. Our results suggested that ovarian carcinoma cells utilize polyploidy formation as a survival mechanism during exposure to paclitaxel-based treatment via the effect of cytoplasmic SIRT1 on PGCC formation and survival, thereby boosting paclitaxel resistance. © 2023 The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Hong Xu
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital, The Fourth Military Medical University, Xi'an, PR China
| | - Shujun Zeng
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital, The Fourth Military Medical University, Xi'an, PR China
| | - Yingmei Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital, The Fourth Military Medical University, Xi'an, PR China
| | - Tong Yang
- Department of Pathology, No. 971 Hospital of People's Liberation Army Navy, Qingdao, PR China
| | - Minmin Wang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital, The Fourth Military Medical University, Xi'an, PR China
| | - Xuan Li
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital, The Fourth Military Medical University, Xi'an, PR China
| | - Yejun He
- School of Basic Medicine, The Fourth Military Medical University, Xi'an, PR China
| | - Xin Peng
- School of Basic Medicine, The Fourth Military Medical University, Xi'an, PR China
| | - Xia Li
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, The Fourth Military Medical University, Xi'an, PR China
| | - Qing Qiao
- Department of General Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, PR China
| | - Jing Zhang
- State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital, The Fourth Military Medical University, Xi'an, PR China
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Patel JR, Banjara B, Ohemeng A, Davidson AM, Boué SM, Burow ME, Tilghman SL. Novel Therapeutic Combination Targets the Growth of Letrozole-Resistant Breast Cancer through Decreased Cyclin B1. Nutrients 2023; 15:nu15071632. [PMID: 37049472 PMCID: PMC10097176 DOI: 10.3390/nu15071632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/21/2023] [Accepted: 03/24/2023] [Indexed: 03/30/2023] Open
Abstract
As breast cancer cells transition from letrozole-sensitive to letrozole-resistant, they over-express epidermal growth factor receptor (EGFR), mitogen-activated protein kinase (MAPK), and human epidermal growth factor receptor 2 (HER2) while acquiring enhanced motility and epithelial-to-mesenchymal transition (EMT)-like characteristics that are attenuated and reversed by glyceollin treatment, respectively. Interestingly, glyceollin inhibits the proliferation and tumor progression of triple-negative breast cancer (TNBC) and estrogen-independent breast cancer cells; however, it is unlikely that a single phytochemical would effectively target aromatase-inhibitor (AI)-resistant metastatic breast cancer in the clinical setting. Since our previous report indicated that the combination of lapatinib and glyceollin induced apoptosis in hormone-dependent AI-resistant breast cancer cells, we hypothesized that combination therapy would also be beneficial for hormone independent letrozole-resistant breast cancer cells (LTLT-Ca) compared to AI-sensitive breast cancer cells (AC-1) by decreasing the expression of proteins associated with proliferation and cell cycle progression. While glyceollin + lapatinib treatment caused comparable inhibitory effects on the proliferation and migration in both cell lines, combination treatment selectively induced S and G2/M phase cell cycle arrest of the LTLT-Ca cells, which was mediated by decreased cyclin B1. This phenomenon may represent a unique opportunity to design novel combinatorial therapeutic approaches to target hormone-refractory breast tumors.
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6
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Low-molecular-weight cyclin E deregulates DNA replication and damage repair to promote genomic instability in breast cancer. Oncogene 2022; 41:5331-5346. [PMID: 36344674 PMCID: PMC9742291 DOI: 10.1038/s41388-022-02527-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 10/21/2022] [Accepted: 10/25/2022] [Indexed: 11/09/2022]
Abstract
Low-molecular-weight cyclin E (LMW-E) is an N-terminus deleted (40 amino acid) form of cyclin E detected in breast cancer, but not in normal cells or tissues. LMW-E overexpression predicts poor survival in breast cancer patients independent of tumor proliferation rate, but the oncogenic mechanism of LMW-E and its unique function(s) independent of full-length cyclin E (FL-cycE) remain unclear. In the current study, we found LMW-E was associated with genomic instability in early-stage breast tumors (n = 725) and promoted genomic instability in human mammary epithelial cells (hMECs). Mechanistically, FL-cycE overexpression inhibited the proliferation of hMECs by replication stress and DNA damage accumulation, but LMW-E facilitated replication stress tolerance by upregulating DNA replication and damage repair. Specifically, LMW-E interacted with chromatin and upregulated the loading of minichromosome maintenance complex proteins (MCMs) in a CDC6 dependent manner and promoted DNA repair in a RAD51- and C17orf53-dependent manner. Targeting the ATR-CHK1-RAD51 pathway with ATR inhibitor (ceralasertib), CHK1 inhibitor (rabusertib), or RAD51 inhibitor (B02) significantly decreased the viability of LMW-E-overexpressing hMECs and breast cancer cells. Collectively, our findings delineate a novel role for LMW-E in tumorigenesis mediated by replication stress tolerance and genomic instability, providing novel therapeutic strategies for LMW-E-overexpressing breast cancers.
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7
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Kaszak I, Witkowska-Piłaszewicz O, Domrazek K, Jurka P. The Novel Diagnostic Techniques and Biomarkers of Canine Mammary Tumors. Vet Sci 2022; 9:526. [PMID: 36288138 PMCID: PMC9610006 DOI: 10.3390/vetsci9100526] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/12/2022] [Accepted: 09/22/2022] [Indexed: 07/25/2023] Open
Abstract
Canine mammary tumors (CMTs) are considered a serious clinical problem in older bitches. Due to the high malignancy rate and poor prognosis, an early diagnosis is essential. This article is a summary of novel diagnostic techniques as well as the main biomarkers of CMTs. So far, CMTs are detected only when changes in mammary glands are clinically visible and surgical removal of the mass is the only recommended treatment. Proper diagnostics of CMT is especially important as they represent a very diverse group of tumors and therefore different treatment approaches may be required. Recently, new diagnostic options appeared, like a new cytological grading system of CMTs or B-mode ultrasound, the Doppler technique, contrast-enhanced ultrasound, and real-time elastography, which may be useful in pre-surgical evaluation. However, in order to detect malignancies before macroscopic changes are visible, evaluation of serum and tissue biomarkers should be considered. Among them, we distinguish markers of the cell cycle, proliferation, apoptosis, metastatic potential and prognosis, hormone receptors, inflammatory and more recent: metabolomic, gene expression, miRNA, and transcriptome sequencing markers. The use of a couple of the above-mentioned markers together seems to be the most useful for the early diagnosis of neoplastic diseases as well as to evaluate response to treatment, presence of tumor progression, or further prognosis. Molecular aspects of tumors seem to be crucial for proper understanding of tumorigenesis and the application of individual treatment options.
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Affiliation(s)
- Ilona Kaszak
- Laboratory of Small Animal Reproduction, Department of Small Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-787 Warsaw, Poland
| | - Olga Witkowska-Piłaszewicz
- Department of Pathology and Veterinary Diagnostics, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-787 Warsaw, Poland
| | - Kinga Domrazek
- Laboratory of Small Animal Reproduction, Department of Small Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-787 Warsaw, Poland
| | - Piotr Jurka
- Laboratory of Small Animal Reproduction, Department of Small Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, 02-787 Warsaw, Poland
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8
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Al-Qasem AJ, Alves CL, Ehmsen S, Tuttolomondo M, Terp MG, Johansen LE, Vever H, Hoeg LVA, Elias D, Bak M, Ditzel HJ. Co-targeting CDK2 and CDK4/6 overcomes resistance to aromatase and CDK4/6 inhibitors in ER+ breast cancer. NPJ Precis Oncol 2022; 6:68. [PMID: 36153348 PMCID: PMC9509389 DOI: 10.1038/s41698-022-00311-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 08/30/2022] [Indexed: 11/09/2022] Open
Abstract
AbstractResistance to aromatase inhibitor (AI) treatment and combined CDK4/6 inhibitor (CDK4/6i) and endocrine therapy (ET) are crucial clinical challenges in treating estrogen receptor-positive (ER+) breast cancer. Understanding the resistance mechanisms and identifying reliable predictive biomarkers and novel treatment combinations to overcome resistance are urgently needed. Herein, we show that upregulation of CDK6, p-CDK2, and/or cyclin E1 is associated with adaptation and resistance to AI-monotherapy and combined CDK4/6i and ET in ER+ advanced breast cancer. Importantly, co-targeting CDK2 and CDK4/6 with ET synergistically impairs cellular growth, induces cell cycle arrest and apoptosis, and delays progression in AI-resistant and combined CDK4/6i and fulvestrant-resistant cell models and in an AI-resistant autocrine breast tumor in a postmenopausal xenograft model. Analysis of CDK6, p-CDK2, and/or cyclin E1 expression as a combined biomarker in metastatic lesions of ER+ advanced breast cancer patients treated with AI-monotherapy or combined CDK4/6i and ET revealed a correlation between high biomarker expression and shorter progression-free survival (PFS), and the biomarker combination was an independent prognostic factor in both patients cohorts. Our study supports the clinical development of therapeutic strategies co-targeting ER, CDK4/6 and CDK2 following progression on AI-monotherapy or combined CDK4/6i and ET to improve survival of patients exhibiting high tumor levels of CDK6, p-CDK2, and/or cyclin E1.
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Cai S, Hu T, Venkatesan M, Allam M, Schneider F, Ramalingam SS, Sun SY, Coskun AF. Multiplexed protein profiling reveals spatial subcellular signaling networks. iScience 2022; 25:104980. [PMID: 36093051 PMCID: PMC9460555 DOI: 10.1016/j.isci.2022.104980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 05/25/2022] [Accepted: 08/16/2022] [Indexed: 11/30/2022] Open
Affiliation(s)
- Shuangyi Cai
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA
| | - Thomas Hu
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Mythreye Venkatesan
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
- Interdisciplinary Bioengineering Graduate Program, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Mayar Allam
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA
| | - Frank Schneider
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, GA 30322, USA
- Winship Cancer Institute of Emory University, Atlanta, GA 30322, USA
| | - Suresh S. Ramalingam
- Winship Cancer Institute of Emory University, Atlanta, GA 30322, USA
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Shi-Yong Sun
- Winship Cancer Institute of Emory University, Atlanta, GA 30322, USA
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Ahmet F. Coskun
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA
- Interdisciplinary Bioengineering Graduate Program, Georgia Institute of Technology, Atlanta, GA 30332, USA
- Winship Cancer Institute of Emory University, Atlanta, GA 30322, USA
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA
- Corresponding author
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10
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Cetin B, Wabl CA, Gumusay O. CDK4/6 inhibitors: mechanisms of resistance and potential biomarkers of responsiveness in breast cancer. Future Oncol 2022; 18:1143-1157. [PMID: 35137602 DOI: 10.2217/fon-2021-0842] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Hormone receptor (HR)-positive, HER2-negative tumors represent the most common form of metastatic breast cancer (MBC), and endocrine therapy has been the mainstay treatment for several decades. Recently, a novel drug class called CDK4/6 inhibitors in combination with endocrine therapy have remarkably improved the outcome of patients with HR-positive, HER2-negative MBC by targeting the cell cycle machinery and overcoming aspects of endocrine resistance. Several potential cell-cycle-specific and nonspecific mechanisms of resistance to CDK4/6 inhibitors have been reported in recent studies. This review discusses potential resistance mechanisms to CDK4/6 inhibitors, the use of biomarkers to guide treatment for HR-positive, HER2-negative MBC and possible approaches to overcome resistance to CDK4/6 inhibitors.
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Affiliation(s)
- Bulent Cetin
- Department of Internal Medicine, Division of Medical Oncology, Suleyman Demirel University Faculty of Medicine, Isparta, 32260, Turkey
| | - Chiara A Wabl
- University of California, San Francisco School of Medicine, San Francisco, CA 94143, USA
| | - Ozge Gumusay
- University of California Helen Diller Family Comprehensive Cancer Center, San Francisco, CA 94143, USA
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11
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Karakas C, Francis AM, Ha MJ, Wingate HF, Meena RA, Yi M, Rasaputra KS, Barrera AMG, Arun B, Do KA, Sahin A, Keyomarsi K, Hunt KK. Cytoplasmic Cyclin E Expression Predicts for Response to Neoadjuvant Chemotherapy in Breast Cancer. Ann Surg 2021; 274:e150-e159. [PMID: 31436549 PMCID: PMC7031042 DOI: 10.1097/sla.0000000000003551] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND Pathologic complete response (pCR) has been shown to be associated with favorable outcomes in breast cancer. Predictors of pCR could be useful in guiding treatment decisions regarding neoadjuvant therapy. The objective of this study was to evaluate cyclin E as a predictor of response to neoadjuvant chemotherapy in breast cancer. METHODS Patients (n = 285) with stage II-III breast cancer were enrolled in a prospective study and received neoadjuvant chemotherapy with anthracyclines, taxanes, or combination of the two. Pretreatment biopsies from 190 patients and surgical specimens following chemotherapy from 192 patients were available for immunohistochemical analysis. Clinical and pathologic responses were recorded and associated with presence of tumor infiltrating lymphocytes, cyclin E, adipophilin, programmed cell death-ligand 1, and elastase staining and other patient, tumor and treatment characteristics. RESULTS The pCR rate was significantly lower in patients with cytoplasmic cyclin E staining compared with those who had no cyclin E expression (16.1% vs 38.9%, P = 0.0005). In multivariable logistic regression analysis, the odds of pCR for patients who had cytoplasmic negative tumors was 9.35 times (P value < 0.0001) that compared with patients with cytoplasmic positive tumors after adjusting for ER, PR, and HER2 status. Cytoplasmic cyclin E expression also predicts long-term outcome and is associated with reduced disease free, recurrence free, and overall survival rates, independent of increased pretreatment tumor infiltrating lymphocytes. CONCLUSIONS Cyclin E independently predicted response to neoadjuvant chemotherapy. Hence, its routine immunohistochemical analysis could be used clinically to identify those breast cancer patients expected to have a poor response to anthracycline/taxane-based chemotherapy.
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Affiliation(s)
- Cansu Karakas
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Ashleigh M Francis
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Min Jin Ha
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Hannah F Wingate
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Richard A Meena
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Min Yi
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Komal S Rasaputra
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | | | - Banu Arun
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Kim-Anh Do
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Aysegul Sahin
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Khandan Keyomarsi
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Kelly K Hunt
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
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12
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Parks RM, Alfarsi LH, Green AR, Cheung KL. Biology of primary breast cancer in older women beyond routine biomarkers. Breast Cancer 2021; 28:991-1001. [PMID: 34165702 PMCID: PMC8354915 DOI: 10.1007/s12282-021-01266-5] [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: 03/30/2021] [Accepted: 06/13/2021] [Indexed: 11/15/2022]
Abstract
Purpose There are numerous biomarkers which may have potential predictive and prognostic significance in breast cancer. This is extremely important in older adults, who may opt for less aggressive therapy. This work outlines the literature on biological assessment outside of standard biomarkers (defined as ER, PgR, HER2, Ki67) in women ≥ 65 years with primary operable invasive breast cancer, to determine which additional biomarkers are relevant to outcome in older women. Methods Medline and Embase databases were searched. Studies were eligible if included ≥ 50 patients aged ≥ 65 years; stratified results by age; measured a biomarker outside of standard assay and reported patient data. Results A total of 12 studies were appraised involving 5000 patients, measuring 28 biomarkers. The studies were extremely varied in methodology and outcome but three themes emerged: 1. Differences in biomarker expression between younger and older women, indicating that breast cancer in older women is generally less aggressive compared to younger women; 2. Relationship of biomarker expression with survival, suggesting biomarkers which may exclusively predict response to primary treatment in older women; 3. Association of biomarker with chemotherapy, suggesting that older patients should not be declined chemotherapy based on age alone. Conclusion There is evidence to support further investigation of B-cell lymphoma (BCL2), liver kinase (LK)B1, epidermal growth factor receptor (EGFR), cytoplasmic cyclin-E, mucin (MUC)1 and cytokeratins (CKs) as potential predictive or prognostic markers in older women with breast cancer undergoing surgery. Studies exploring these biomarkers in larger cohorts and in women undergoing non-operative therapies are required. Supplementary Information The online version contains supplementary material available at 10.1007/s12282-021-01266-5.
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Affiliation(s)
- R M Parks
- Nottingham Breast Cancer Research Centre, School of Medicine, Royal Derby Hospital Centre, University of Nottingham, Uttoxeter Road, Derby, DE22 3DT, UK
| | - L H Alfarsi
- Nottingham Breast Cancer Research Centre, School of Medicine, Royal Derby Hospital Centre, University of Nottingham, Uttoxeter Road, Derby, DE22 3DT, UK
| | - A R Green
- Nottingham Breast Cancer Research Centre, School of Medicine, Royal Derby Hospital Centre, University of Nottingham, Uttoxeter Road, Derby, DE22 3DT, UK
| | - K L Cheung
- Nottingham Breast Cancer Research Centre, School of Medicine, Royal Derby Hospital Centre, University of Nottingham, Uttoxeter Road, Derby, DE22 3DT, UK.
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13
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Lulla AR, Akli S, Karakas C, Ha MJ, Fowlkes NW, Mitani Y, Bui T, Wang J, Rao X, Hunt KK, Meijer L, El-Naggar AK, Keyomarsi K. LMW cyclin E and its novel catalytic partner CDK5 are therapeutic targets and prognostic biomarkers in salivary gland cancers. Oncogenesis 2021; 10:40. [PMID: 33990543 PMCID: PMC8121779 DOI: 10.1038/s41389-021-00324-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 03/29/2021] [Accepted: 04/08/2021] [Indexed: 11/18/2022] Open
Abstract
Salivary gland cancers (SGCs) are rare yet aggressive malignancies with significant histological heterogeneity, which has made prediction of prognosis and development of targeted therapies challenging. In majority of patients, local recurrence and/or distant metastasis are common and systemic treatments have minimal impact on survival. Therefore, identification of novel targets for treatment that can also be used as predictors of recurrence for multiple histological subtypes of SGCs is an area of unmet need. In this study, we developed a novel transgenic mouse model of SGC, efficiently recapitulating the major histological subtype (adenocarcinomas of the parotid gland) of human SGC. CDK2 knock out (KO) mice crossed with MMTV-low molecular weight forms of cyclin E (LMW-E) mice generated the transgenic mouse models of SGC, which arise in the parotid region of the salivary gland, similar to the common site of origin seen in human SGCs. To identify the CDK2 independent catalytic partner(s) of LMW-E, we used LMW-E expressing cell lines in mass spectrometric analysis and subsequent biochemical validation in pull down assays. These studies revealed that in the absence of CDK2, LMW-E preferentially binds to CDK5. Molecular targeting of CDK5, using siRNA, resulted in inhibition of cell proliferation of human SGCs overexpressing LMW-E. We also provide clinical evidence of significant association of LMW-E/CDK5 co-expression and decreased recurrence free survival in human SGC. Immunohistochemical analysis of LMW-E and CDK5 in 424 patients representing each of the four major histological subtypes of human salivary cancers (Aci, AdCC, MEC, and SDC) revealed that LMW-E and CDK5 are concordantly (positive/positive or negative/negative) expressed in 70% of these patients. The co-expression of LMW-E/CDK5 (both positive) robustly predicts the likelihood of recurrence, regardless of the histological classification of these tumors. Collectively, our results suggest that CDK5 is a novel and targetable biomarker for the treatment of patients with SGC presenting with LMW-E overexpressing tumors.
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Affiliation(s)
- Amriti R Lulla
- Departments of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Said Akli
- Departments of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Cansu Karakas
- Departments of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Min Jin Ha
- Departments of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Natalie W Fowlkes
- Departments of Veterinary Medicine and Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yoshitsugu Mitani
- Departments of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Tuyen Bui
- Departments of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jing Wang
- Departments of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Xiayu Rao
- Departments of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Kelly K Hunt
- Departments of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Laurent Meijer
- ManRos Therapeutics & Perha Pharmaceuticals, Centre de Perharidy Roscoff, Roscoff, France
| | - Adel K El-Naggar
- Departments of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Khandan Keyomarsi
- Departments of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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14
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Chen X, Yang D, Carey JPW, Karakas C, Albarracin C, Sahin AA, Arun BK, Guray Durak M, Li M, Kohansal M, Bui TN, Ha MJ, Hunt KK, Keyomarsi K. Targeting Replicative Stress and DNA Repair by Combining PARP and Wee1 Kinase Inhibitors Is Synergistic in Triple Negative Breast Cancers with Cyclin E or BRCA1 Alteration. Cancers (Basel) 2021; 13:cancers13071656. [PMID: 33916118 PMCID: PMC8036262 DOI: 10.3390/cancers13071656] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/21/2021] [Accepted: 03/29/2021] [Indexed: 11/23/2022] Open
Abstract
Simple Summary Triple-negative breast cancer (TNBC) is a subtype of invasive breast cancer with an aggressive phenotype that has decreased survival compared with other types of breast cancers, due in part to the lack of biomarker driven targeted therapies. Here, we show that breast cancer patients whose tumors show high levels of cyclin E expression have a higher prevalence of BRCA1/2 alterations and have the worst clinical outcomes. In vitro and in vivo studies revealed that combination therapies with poly (ADP-ribose) polymerase (PARP) and Wee1 kinase inhibitors in TNBC cells with either BRCA1 mutations or high levels of cyclin E results in synergistic cell death due to induction of replicative stress and downregulation of DNA repair. These studies suggest that by preselecting patients whose tumors have high cyclin E levels or harbor mutations in BRCA1, only those cases with the highest replicative stress properties will be subjected to combination treatment and likely result in synergistic activity of the two agents. Abstract The identification of biomarker-driven targeted therapies for patients with triple negative breast cancer (TNBC) remains a major clinical challenge, due to a lack of specific targets. Here, we show that cyclin E, a major regulator of G1 to S transition, is deregulated in TNBC and is associated with mutations in DNA repair genes (e.g., BRCA1/2). Breast cancers with high levels of cyclin E not only have a higher prevalence of BRCA1/2 mutations, but also are associated with the worst outcomes. Using several in vitro and in vivo model systems, we show that TNBCs that harbor either mutations in BRCA1/2 or overexpression of cyclin E are very sensitive to the growth inhibitory effects of AZD-1775 (Wee 1 kinase inhibitor) when used in combination with MK-4837 (PARP inhibitor). Combination treatment of TNBC cell lines with these two agents results in synergistic cell killing due to induction of replicative stress, downregulation of DNA repair and cytokinesis failure that results in increased apoptosis. These findings highlight the potential clinical application of using cyclin E and BRCA mutations as biomarkers to select only those patients with the highest replicative stress properties that may benefit from combination treatment with Wee 1 kinase and PARP inhibitors.
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Affiliation(s)
- Xian Chen
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (X.C.); (D.Y.); (J.P.W.C.); (C.K.); (M.G.D.); (M.L.); (M.K.); (T.N.B.)
| | - Dong Yang
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (X.C.); (D.Y.); (J.P.W.C.); (C.K.); (M.G.D.); (M.L.); (M.K.); (T.N.B.)
| | - Jason P. W. Carey
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (X.C.); (D.Y.); (J.P.W.C.); (C.K.); (M.G.D.); (M.L.); (M.K.); (T.N.B.)
| | - Cansu Karakas
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (X.C.); (D.Y.); (J.P.W.C.); (C.K.); (M.G.D.); (M.L.); (M.K.); (T.N.B.)
| | - Constance Albarracin
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (C.A.); (A.A.S.)
| | - Aysegul A. Sahin
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (C.A.); (A.A.S.)
| | - Banu K. Arun
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Merih Guray Durak
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (X.C.); (D.Y.); (J.P.W.C.); (C.K.); (M.G.D.); (M.L.); (M.K.); (T.N.B.)
| | - Mi Li
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (X.C.); (D.Y.); (J.P.W.C.); (C.K.); (M.G.D.); (M.L.); (M.K.); (T.N.B.)
| | - Mehrnoosh Kohansal
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (X.C.); (D.Y.); (J.P.W.C.); (C.K.); (M.G.D.); (M.L.); (M.K.); (T.N.B.)
| | - Tuyen N. Bui
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (X.C.); (D.Y.); (J.P.W.C.); (C.K.); (M.G.D.); (M.L.); (M.K.); (T.N.B.)
| | - Min-Jin Ha
- Department of Bioinformatics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Kelly K. Hunt
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Khandan Keyomarsi
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (X.C.); (D.Y.); (J.P.W.C.); (C.K.); (M.G.D.); (M.L.); (M.K.); (T.N.B.)
- Correspondence: ; Tel.: +1-713-792-4845
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15
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Wei R, Dean DC, Thanindratarn P, Hornicek FJ, Guo W, Duan Z. Prognostic Significance of Cyclin E1 Expression in Patients With Chordoma: A Clinicopathological and Immunohistochemical Study. Front Oncol 2020; 10:596330. [PMID: 33282745 PMCID: PMC7705258 DOI: 10.3389/fonc.2020.596330] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 10/19/2020] [Indexed: 01/03/2023] Open
Abstract
PURPOSE Chordomas are rare, slow-growing sarcomas without any accepted prognostic biomarkers. Owing to their proximity to critical neurovascular structures, discovering predictive biomarkers in chordoma has been a significant research effort because it may potentially reduce risky therapies in patients with less aggressive tumors. In response, because cyclin E1 overexpression correlates with patient prognosis in several malignancies, we investigated its expression in chordoma and whether it informs patient prognosis. METHODS Seventy-five chordoma patient specimens were enrolled in a tissue microarray (TMA) to evaluate cyclin E1 expression via immunohistochemical staining. Western blot was used to assess cyclin E1 expression in chordoma cell lines and fresh tissues. We then correlated cyclin E1 staining intensity in the TMA to clinicopathological features and chordoma patient outcomes. RESULTS Sixty-three percent of the chordoma patient specimens in the TMA, fifty-six percent of the fresh chordoma tissues, and all chordoma cell lines showed high cyclin E1 expression. In TMA analysis, cyclin E1 expression positively correlated to chordoma patient disease status. By survival analysis, high cyclin E1 expression was an independent prognostic risk factor for chordoma patients along with advanced disease status and positive surgical margin. CONCLUSION Cyclin E1 is a promising biomarker predicting chordoma patient prognosis.
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Affiliation(s)
- Ran Wei
- Musculoskeletal Tumor Center, Beijing Key Laboratory of Musculoskeletal Tumor, Peking University People’s Hospital, Beijing, China
- Sarcoma Biology Laboratory, Department of Orthopedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Dylan C. Dean
- Sarcoma Biology Laboratory, Department of Orthopedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Pichaya Thanindratarn
- Sarcoma Biology Laboratory, Department of Orthopedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
- Department of Orthopedic Surgery, Chulabhorn Hospital, HRH Princess Chulabhorn College of Medical Science, Bangkok, Thailand
| | - Francis J. Hornicek
- Sarcoma Biology Laboratory, Department of Orthopedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Wei Guo
- Musculoskeletal Tumor Center, Beijing Key Laboratory of Musculoskeletal Tumor, Peking University People’s Hospital, Beijing, China
| | - Zhenfeng Duan
- Sarcoma Biology Laboratory, Department of Orthopedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
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16
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Li Z, Zou W, Zhang J, Zhang Y, Xu Q, Li S, Chen C. Mechanisms of CDK4/6 Inhibitor Resistance in Luminal Breast Cancer. Front Pharmacol 2020; 11:580251. [PMID: 33364954 PMCID: PMC7751736 DOI: 10.3389/fphar.2020.580251] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 09/30/2020] [Indexed: 12/22/2022] Open
Abstract
As a new-generation CDK inhibitor, a CDK4/6 inhibitor combined with endocrine therapy has been successful in the treatment of advanced estrogen receptor-positive (ER+) breast cancer. Although there has been overall progress in the treatment of cancer, drug resistance is an emerging cause for breast cancer-related death. Overcoming CDK4/6 resistance is an urgent problem. Overactivation of the cyclin-CDK-Rb axis related to uncontrolled cell proliferation is the main cause of CDK4/6 inhibitor resistance; however, the underlying mechanisms need to be clarified further. We review various resistance mechanisms of CDK4/6 inhibitors in luminal breast cancer. The cell signaling pathways involved in therapy resistance are divided into two groups: upstream response mechanisms and downstream bypass mechanisms. Finally, we discuss possible strategies to overcome CDK4/6 inhibitor resistance and identify novel resistance targets for future clinical application.
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Affiliation(s)
- Zhen Li
- Department of the Third Breast Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Wei Zou
- Queen Mary Institute, Nanchang University, Nanchang, China
| | - Ji Zhang
- Department of the Third Breast Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yunjiao Zhang
- Kunming Medical University Haiyuan College, Kunming, China
| | - Qi Xu
- Department of Molecular Biosciences, Institute of Cellular and Molecular Biology, The University of Texas, Austin, TX, United States
| | - Siyuan Li
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - Ceshi Chen
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
- KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
- Institute of Translation Medicine, Shenzhen Second People’s Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
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17
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Zhou Y, Geng Y, Zhang Y, Zhou Y, Chu C, Sharma S, Fassl A, Butter D, Sicinski P. The requirement for cyclin E in c-Myc overexpressing breast cancers. Cell Cycle 2020; 19:2589-2599. [PMID: 32975478 DOI: 10.1080/15384101.2020.1804720] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Basal-like triple-negative breast cancers frequently express high levels of c-Myc. This oncoprotein signals to the core cell cycle machinery by impinging on cyclin E. High levels of E-type cyclins (E1 and E2) are often seen in human triple-negative breast tumors. In the current study, we examined the requirement for E-type cyclins in the c-Myc-driven mouse model of breast cancer (MMTV-c-Myc mice). To do so, we crossed cyclin E1- (E1-/-) and E2- (E2-/-) deficient mice with MMTV-c-Myc animals, and observed the resulting cyclin E1-/-/MMTV-c-Myc and cyclin E2-/-/MMTV-c-Myc females for breast cancer incidence. We found that mice lacking cyclins E1 or E2 developed breast cancers like their cyclin Ewild-type counterparts. In contrast, further reduction of the dosage of E-cyclins in cyclin E1-/-E2+/-/MMTV-c-Myc and cyclin E1+/-E2-/-/MMTV-c-Myc animals significantly decreased the incidence of mammary carcinomas, revealing arole for E-cyclins in tumor initiation. We also observed that depletion of E-cyclins in human triple-negative breast cancer cell lines halted cell cycle progression, indicating that E-cyclins are essential for tumor cell proliferation. In contrast, we found that the catalytic partner of E-cyclins, the cyclin-dependent kinase 2 (CDK2), is dispensable for the proliferation of these cells. These results indicate that E-cyclins, but not CDK2, play essential and rate-limiting roles in driving the proliferation of c-Myc overexpressing breast cancer cells.
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Affiliation(s)
- Yu Zhou
- Department of Cancer Biology, Dana-Farber Cancer Institute and Department of Genetics, Blavatnik Institute, Harvard Medical School , Boston, MA, USA.,Sichuan Provincial Key Laboratory for Human Disease Gene Study, Department of Laboratory Medicine, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China , Chengdu, China
| | - Yan Geng
- Department of Cancer Biology, Dana-Farber Cancer Institute and Department of Genetics, Blavatnik Institute, Harvard Medical School , Boston, MA, USA
| | - Yujiao Zhang
- Department of Cancer Biology, Dana-Farber Cancer Institute and Department of Genetics, Blavatnik Institute, Harvard Medical School , Boston, MA, USA
| | - Yubin Zhou
- Department of Cancer Biology, Dana-Farber Cancer Institute and Department of Genetics, Blavatnik Institute, Harvard Medical School , Boston, MA, USA.,Sichuan Provincial Key Laboratory for Human Disease Gene Study, Department of Laboratory Medicine, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China , Chengdu, China
| | - Chen Chu
- Department of Cancer Biology, Dana-Farber Cancer Institute and Department of Genetics, Blavatnik Institute, Harvard Medical School , Boston, MA, USA
| | - Samanta Sharma
- Department of Cancer Biology, Dana-Farber Cancer Institute and Department of Genetics, Blavatnik Institute, Harvard Medical School , Boston, MA, USA
| | - Anne Fassl
- Department of Cancer Biology, Dana-Farber Cancer Institute and Department of Genetics, Blavatnik Institute, Harvard Medical School , Boston, MA, USA
| | - Deborah Butter
- Department of Cancer Biology, Dana-Farber Cancer Institute and Department of Genetics, Blavatnik Institute, Harvard Medical School , Boston, MA, USA
| | - Piotr Sicinski
- Department of Cancer Biology, Dana-Farber Cancer Institute and Department of Genetics, Blavatnik Institute, Harvard Medical School , Boston, MA, USA
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Pang W, Li Y, Guo W, Shen H. Cyclin E: a potential treatment target to reverse cancer chemoresistance by regulating the cell cycle. Am J Transl Res 2020; 12:5170-5187. [PMID: 33042412 PMCID: PMC7540110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 08/22/2020] [Indexed: 06/11/2023]
Abstract
The cyclin family plays important roles in regulating the proliferative cycle of mammalian cells. Among the members of this family, cyclin E regulates multiple downstream molecules, such as the retinoblastoma susceptibility gene (RB1) and the transcription factor E2F, by interacting with cyclin-dependent kinases (CDKs) and plays an important role in the cell cycle transition from G1 to S phase. Over the years, studies have shown that cyclin E is closely related to the chemotherapy resistance of tumor cells and that its expression in tumor cells is closely related to prognosis. The dysregulated expression of cyclin E has a definite effect not only on the cell cycle regulation of tumor cells but also on the presence of low-molecular-weight cyclin E (LMW-E) and other cyclins that render tumor cells resistant. In addition, many studies in recent years have confirmed that chemotherapy resistance mediated by cyclin E can be reversed. For example, the combination of a cyclin-dependent kinase inhibitor (CKI) with anticancer drugs or the therapeutic targeting of related genes improves chemotherapy resistance by reducing the level or activity of cyclin E in tumor cells. This review summarizes the specific processes by which cyclin E regulates the cell cycle, its relationship to chemotherapy resistance in cancer, and its potential as a clinical therapeutic target to reverse chemotherapy resistance.
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Affiliation(s)
- Wei Pang
- Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, China
- Department of Oncology, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, China
| | - Yashan Li
- Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, China
- Department of Oncology, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, China
| | - Weihua Guo
- Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, China
| | - Hong Shen
- Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, China
- Department of Oncology, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, China
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Guerrero Llobet S, van der Vegt B, Jongeneel E, Bense RD, Zwager MC, Schröder CP, Everts M, Fehrmann RSN, de Bock GH, van Vugt MATM. Cyclin E expression is associated with high levels of replication stress in triple-negative breast cancer. NPJ Breast Cancer 2020; 6:40. [PMID: 32964114 PMCID: PMC7477160 DOI: 10.1038/s41523-020-00181-w] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 08/06/2020] [Indexed: 12/15/2022] Open
Abstract
Replication stress entails the improper progression of DNA replication. In cancer cells, including breast cancer cells, an important cause of replication stress is oncogene activation. Importantly, tumors with high levels of replication stress may have different clinical behavior, and high levels of replication stress appear to be a vulnerability of cancer cells, which may be therapeutically targeted by novel molecularly targeted agents. Unfortunately, data on replication stress is largely based on experimental models. Further investigation of replication stress in clinical samples is required to optimally implement novel therapeutics. To uncover the relation between oncogene expression, replication stress, and clinical features of breast cancer subgroups, we immunohistochemically analyzed the expression of a panel of oncogenes (Cyclin E, c-Myc, and Cdc25A,) and markers of replication stress (phospho-Ser33-RPA32 and γ-H2AX) in breast tumor tissues prior to treatment (n = 384). Triple-negative breast cancers (TNBCs) exhibited the highest levels of phospho-Ser33-RPA32 (P < 0.001 for all tests) and γ-H2AX (P < 0.05 for all tests). Moreover, expression levels of Cyclin E (P < 0.001 for all tests) and c-Myc (P < 0.001 for all tests) were highest in TNBCs. Expression of Cyclin E positively correlated with phospho-RPA32 (Spearman correlation r = 0.37, P < 0.001) and γ-H2AX (Spearman correlation r = 0.63, P < 0.001). Combined, these data indicate that, among breast cancers, replication stress is predominantly observed in TNBCs, and is associated with expression levels of Cyclin E. These results indicate that Cyclin E overexpression may be used as a biomarker for patient selection in the clinical evaluation of drugs that target the DNA replication stress response.
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Affiliation(s)
- Sergi Guerrero Llobet
- Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Bert van der Vegt
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Evelien Jongeneel
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Rico D. Bense
- Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Mieke C. Zwager
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Carolien P. Schröder
- Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Marieke Everts
- Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Rudolf S. N. Fehrmann
- Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Geertruida H. de Bock
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Marcel A. T. M. van Vugt
- Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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20
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Wei R, Thanindratarn P, Dean DC, Hornicek FJ, Guo W, Duan Z. Cyclin E1 is a prognostic biomarker and potential therapeutic target in osteosarcoma. J Orthop Res 2020; 38:1952-1964. [PMID: 32162720 DOI: 10.1002/jor.24659] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 02/26/2020] [Accepted: 03/06/2020] [Indexed: 02/04/2023]
Abstract
While amplified expressed cyclin E1 is a well-known tumorigenic factor and prognostic biomarker in several malignancies, its prognostic predictive potential and function in osteosarcoma is poorly understood. Here we reveal discrete expression pattern, correlation to clinicopathological characteristics and prognosis and overall function of cyclin E1 in osteosarcoma. Sixty-nine osteosarcoma patient tumor specimens were enrolled to construct a tissue microarray to evaluate cyclin E1 expression through immunohistochemical staining. Cyclin E1 expression in osteosarcoma cell lines and fresh tissues was assessed by Western blot. Cyclin E1 gene expression was evaluated using RNA sequencing data acquired from the public database. We correlated staining intensity to clinical characteristics. Cyclin E1 small interfering RNA was used to determine the effect of cyclin E1 silencing on osteosarcoma cell proliferation and chemotherapeutic sensitivity. Sixty-one percent of the osteosarcoma patient specimens in the tissue microarray had high cyclin E1 expression. Cyclin E1 gene was significantly highly expressed in osteosarcoma tissues and cell lines compared to normal tissues. The expression of cyclin E1 positively correlated with disease status, and inversely correlated to prognosis and response to neoadjuvant chemotherapy. The expression of cyclin E1 was an independent prognostic factor for osteosarcoma patients. In addition, silencing cyclin E1 expression in osteosarcoma cells significantly inhibited cell proliferation and increased sensitivity to chemotherapeutics. We conclude that cyclin E1 is overexpressed in osteosarcoma and is a promising biomarker for prognosis and chemotherapeutic response. We confirm aberrant cyclin E1 expression is a potent therapeutic target in osteosarcoma, and its selective inhibition is a rational treatment strategy for osteosarcoma.
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Affiliation(s)
- Ran Wei
- Musculoskeletal Tumor Center, Beijing Key Laboratory of Musculoskeletal Tumor, Peking University People's Hospital, Beijing, China.,Department of Orthopedic Surgery, Sarcoma Biology Laboratory, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Pichaya Thanindratarn
- Department of Orthopedic Surgery, Sarcoma Biology Laboratory, David Geffen School of Medicine at UCLA, Los Angeles, California.,Department of Orthopedic Surgery, Chulabhorn hospital, HRH Princess Chulabhorn College of Medical Science, Bangkok, Thailand
| | - Dylan C Dean
- Department of Orthopedic Surgery, Sarcoma Biology Laboratory, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Francis J Hornicek
- Department of Orthopedic Surgery, Sarcoma Biology Laboratory, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Wei Guo
- Musculoskeletal Tumor Center, Beijing Key Laboratory of Musculoskeletal Tumor, Peking University People's Hospital, Beijing, China
| | - Zhenfeng Duan
- Department of Orthopedic Surgery, Sarcoma Biology Laboratory, David Geffen School of Medicine at UCLA, Los Angeles, California
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Lu Y, Li Y, Li G, Lu H. Identification of potential markers for type 2 diabetes mellitus via bioinformatics analysis. Mol Med Rep 2020; 22:1868-1882. [PMID: 32705173 PMCID: PMC7411335 DOI: 10.3892/mmr.2020.11281] [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: 03/20/2019] [Accepted: 01/20/2020] [Indexed: 12/15/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a multifactorial and multigenetic disease, and its pathogenesis is complex and largely unknown. In the present study, microarray data (GSE201966) of β-cell enriched tissue obtained by laser capture microdissection were downloaded, including 10 control and 10 type 2 diabetic subjects. A comprehensive bioinformatics analysis of microarray data in the context of protein-protein interaction (PPI) networks was employed, combined with subcellular location information to mine the potential candidate genes for T2DM and provide further insight on the possible mechanisms involved. First, differential analysis screened 108 differentially expressed genes. Then, 83 candidate genes were identified in the layered network in the context of PPI via network analysis, which were either directly or indirectly linked to T2DM. Of those genes obtained through literature retrieval analysis, 27 of 83 were involved with the development of T2DM; however, the rest of the 56 genes need to be verified by experiments. The functional analysis of candidate genes involved in a number of biological activities, demonstrated that 46 upregulated candidate genes were involved in ‘inflammatory response’ and ‘lipid metabolic process’, and 37 downregulated candidate genes were involved in ‘positive regulation of cell death’ and ‘positive regulation of cell proliferation’. These candidate genes were also involved in different signaling pathways associated with ‘PI3K/Akt signaling pathway’, ‘Rap1 signaling pathway’, ‘Ras signaling pathway’ and ‘MAPK signaling pathway’, which are highly associated with the development of T2DM. Furthermore, a microRNA (miR)-target gene regulatory network and a transcription factor-target gene regulatory network were constructed based on miRNet and NetworkAnalyst databases, respectively. Notably, hsa-miR-192-5p, hsa-miR-124-5p and hsa-miR-335-5p appeared to be involved in T2DM by potentially regulating the expression of various candidate genes, including procollagen C-endopeptidase enhancer 2, connective tissue growth factor and family with sequence similarity 105, member A, protein phosphatase 1 regulatory inhibitor subunit 1 A and C-C motif chemokine receptor 4. Smad5 and Bcl6, as transcription factors, are regulated by ankyrin repeat domain 23 and transmembrane protein 37, respectively, which might also be used in the molecular diagnosis and targeted therapy of T2DM. Taken together, the results of the present study may offer insight for future genomic-based individualized treatment of T2DM and help determine the underlying molecular mechanisms that lead to T2DM.
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Affiliation(s)
- Yana Lu
- Key Laboratory of Dai and Southern Medicine of Xishuangbanna Dai Autonomous Prefecture, Yunnan Branch, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Jinghong, Yunnan 666100, P.R. China
| | - Yihang Li
- Key Laboratory of Dai and Southern Medicine of Xishuangbanna Dai Autonomous Prefecture, Yunnan Branch, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Jinghong, Yunnan 666100, P.R. China
| | - Guang Li
- Key Laboratory of Dai and Southern Medicine of Xishuangbanna Dai Autonomous Prefecture, Yunnan Branch, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Jinghong, Yunnan 666100, P.R. China
| | - Haitao Lu
- Key Laboratory of Systems Biomedicine, Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
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22
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Kim H, Goo JM, Lee KH, Kim YT, Park CM. Preoperative CT-based Deep Learning Model for Predicting Disease-Free Survival in Patients with Lung Adenocarcinomas. Radiology 2020; 296:216-224. [PMID: 32396042 DOI: 10.1148/radiol.2020192764] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Background Deep learning models have the potential for lung cancer prognostication, but model output as an independent prognostic factor must be validated with clinical risk factors. Purpose To develop and validate a preoperative CT-based deep learning model for predicting disease-free survival in patients with lung adenocarcinoma. Materials and Methods In this retrospective study, a deep learning model was trained to extract prognostic information from preoperative CT examinations. Data set 1 for training, tuning, and internal validation consisted of patients with T1-4N0M0 adenocarcinoma resected between 2009 and 2015. Data set 2 for external validation included patients with clinical T1-2aN0M0 (stage I) adenocarcinomas resected in 2014. Discrimination was assessed by using Harrell C index and benchmarked against the clinical T category. The Greenwood-Nam-D'Agostino test was used for model calibration. The multivariable-adjusted hazard ratios (HRs) were analyzed with clinical prognostic factors by using the Cox regression. Results Evaluated were 800 patients (median age, 64 years; interquartile range, 56-70 years; 450 women) in data set 1 and 108 patients (median age, 63 years; interquartile range, 57-71 years; 60 women) in data set 2. The C indexes were 0.74-0.80 in the internal validation and 0.71-0.78 in the external validation, both comparable with the clinical T category (0.78 in the internal validation and 0.74 in the external validation; all P > .05). The model exhibited good calibration in all data sets (P > .05). Multivariable Cox regression revealed that model outputs were independent prognostic factors (hazard ratio [HR] of the categorical output, 2.5 [95% confidence interval {CI}: 1.03, 5.9; P = .04] in the internal validation and 3.6 [95% CI: 1.6, 8.5; P = .003] in the external validation). Other than the deep learning model, only smoking status (HR, 3.4; 95% CI: 1.4, 8.5; P = .007) contributed further to prediction of disease-free survival for patients after resection of clinical stage I adenocarcinomas. Conclusion A deep learning model for chest CT predicted disease-free survival for patients undergoing an operation for clinical stage I lung adenocarcinoma. © RSNA, 2020 Online supplemental material is available for this article. See also the editorial by Shaffer in this issue.
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Affiliation(s)
- Hyungjin Kim
- From the Department of Radiology (H.K., J.M.G., C.M.P.) and Department of Thoracic and Cardiovascular Surgery (Y.T.K.), Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea; Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Korea (H.K., J.M.G., C.M.P.); Cancer Research Institute, Seoul National University, Seoul, Korea (J.M.G., Y.T.K., C.M.P.); and Department of Radiology, Seoul National University Bundang Hospital, Seongnam, Korea (K.H.L.)
| | - Jin Mo Goo
- From the Department of Radiology (H.K., J.M.G., C.M.P.) and Department of Thoracic and Cardiovascular Surgery (Y.T.K.), Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea; Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Korea (H.K., J.M.G., C.M.P.); Cancer Research Institute, Seoul National University, Seoul, Korea (J.M.G., Y.T.K., C.M.P.); and Department of Radiology, Seoul National University Bundang Hospital, Seongnam, Korea (K.H.L.)
| | - Kyung Hee Lee
- From the Department of Radiology (H.K., J.M.G., C.M.P.) and Department of Thoracic and Cardiovascular Surgery (Y.T.K.), Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea; Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Korea (H.K., J.M.G., C.M.P.); Cancer Research Institute, Seoul National University, Seoul, Korea (J.M.G., Y.T.K., C.M.P.); and Department of Radiology, Seoul National University Bundang Hospital, Seongnam, Korea (K.H.L.)
| | - Young Tae Kim
- From the Department of Radiology (H.K., J.M.G., C.M.P.) and Department of Thoracic and Cardiovascular Surgery (Y.T.K.), Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea; Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Korea (H.K., J.M.G., C.M.P.); Cancer Research Institute, Seoul National University, Seoul, Korea (J.M.G., Y.T.K., C.M.P.); and Department of Radiology, Seoul National University Bundang Hospital, Seongnam, Korea (K.H.L.)
| | - Chang Min Park
- From the Department of Radiology (H.K., J.M.G., C.M.P.) and Department of Thoracic and Cardiovascular Surgery (Y.T.K.), Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea; Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Korea (H.K., J.M.G., C.M.P.); Cancer Research Institute, Seoul National University, Seoul, Korea (J.M.G., Y.T.K., C.M.P.); and Department of Radiology, Seoul National University Bundang Hospital, Seongnam, Korea (K.H.L.)
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Knudsen ES, Shapiro GI, Keyomarsi K. Selective CDK4/6 Inhibitors: Biologic Outcomes, Determinants of Sensitivity, Mechanisms of Resistance, Combinatorial Approaches, and Pharmacodynamic Biomarkers. Am Soc Clin Oncol Educ Book 2020; 40:115-126. [PMID: 32421454 PMCID: PMC7306922 DOI: 10.1200/edbk_281085] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
CDK4/6 inhibitors are now part of the standard armamentarium for hormone receptor-positive breast cancer. In this article, we review the biologic outcomes imposed by these drugs on cancer cells, determinants of response, mechanisms of intrinsic and acquired resistance, as well as combinatorial approaches emanating from mechanistic studies that may allow use of these agents to extend beyond breast cancer. In addition, we will address tumor-, imaging-, and blood-based pharmacodynamic biomarkers that can inform rationally designed trials as clinical development continues.
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Affiliation(s)
- Erik S. Knudsen
- Center for Personalized Medicine and Department of Molecular and Cellular Biology, Roswell Park Cancer Institute, Buffalo, NY
| | - Geoffrey I. Shapiro
- Early Drug Development Center, Department of Medical Oncology, Dana-Farber Cancer Institute and Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Khandan Keyomarsi
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
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24
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Cytoplasmic Cyclin E Is an Independent Marker of Aggressive Tumor Biology and Breast Cancer-Specific Mortality in Women over 70 Years of Age. Cancers (Basel) 2020; 12:cancers12030712. [PMID: 32197318 PMCID: PMC7140020 DOI: 10.3390/cancers12030712] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 03/15/2020] [Indexed: 01/16/2023] Open
Abstract
Multi-cohort analysis demonstrated that cytoplasmic cyclin E expression in primary breast tumors predicts aggressive disease. However, compared to their younger counterparts, older patients have favorable tumor biology and are less likely to die of breast cancer. Biomarkers therefore require interpretation in this specific context. Here, we assess data on cytoplasmic cyclin E from a UK cohort of older women alongside a panel of >20 biomarkers. Between 1973 and 2010, 813 women ≥70 years of age underwent initial surgery for early breast cancer, from which a tissue microarray was constructed (n = 517). Biomarker expression was assessed by immunohistochemistry. Multivariate analysis of breast cancer-specific survival was performed using Cox's proportional hazards. We found that cytoplasmic cyclin E was the only biological factor independently predictive of breast cancer-specific survival in this cohort of older women (hazard ratio (HR) = 6.23, 95% confidence interval (CI) = 1.93-20.14; p = 0.002). At ten years, 42% of older patients with cytoplasmic cyclin E-positive tumors had died of breast cancer versus 8% of negative cases (p < 0.0005). We conclude that cytoplasmic cyclin E is an exquisite marker of aggressive tumor biology in older women. Patients with cytoplasmic cyclin E-negative tumors are unlikely to die of breast cancer. These data have the potential to influence treatment strategy in older patients.
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25
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Wan L, Liu T, Hong Z, Pan Y, Sizemore ST, Zhang J, Ma Z. NEDD4 expression is associated with breast cancer progression and is predictive of a poor prognosis. Breast Cancer Res 2019; 21:148. [PMID: 31856858 PMCID: PMC6923956 DOI: 10.1186/s13058-019-1236-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 11/28/2019] [Indexed: 12/12/2022] Open
Abstract
Background A role for neural precursor cell-expressed developmentally downregulated gene 4 (NEDD4) in tumorigenesis has been suggested. However, information is lacking on its role in breast tumor biology. The purpose of this study was to determine the role of NEDD4 in the promotion of the growth and progression of breast cancer (BC) and to evaluate the clinicopathologic and prognostic significance of NEDD4. Methods The impact of NEDD4 expression in BC cell growth was determined by Cell Counting Kit-8 and colony formation assays. Formalin-fixed paraffin-embedded specimens were collected from 133 adjacent normal tissues (ANTs), 445 BC cases composed of pre-invasive ductal carcinoma in situ (DCIS, n = 37), invasive ductal carcinomas (IDC, n = 408, 226 without and 182 with lymph node metastasis), and 116 invaded lymph nodes. The expression of NEDD4 was analyzed by immunohistochemistry. The association between NEDD4 expression and clinicopathological characteristics was analyzed by chi-square test. Survival was evaluated using the Kaplan–Meier method, and curves were compared using a log-rank test. Univariate and multivariate analyses were performed using the Cox regression method. Results NEDD4 promoted BC growth in vitro. In clinical retrospective studies, 16.5% of ANTs (22/133) demonstrated positive NEDD4 staining. Strikingly, the proportion of cases showing NEDD4-positive staining increased to 51.4% (19/37) in DCIS, 58.4% (132/226) in IDC without lymph node metastasis, and 73.1% (133/182) in BC with lymph node metastasis (BCLNM). In addition, NEDD4-positive staining was associated with clinical parameters, including tumor size (P = 0.030), nodal status (P = 0.001), estrogen receptor status (P = 0.035), and progesterone receptor status (P = 0.023). Moreover, subset analysis in BCLNM revealed that high NEDD4 expression correlated with an elevated risk of relapse (P = 0.0276). Further, NEDD4 expression was an independent prognostic predictor. Lastly, the rates for 10-year overall survival and disease-free survival were significantly lower in patients with positive NEDD4 staining than those in BC patients with negative NEDD4 staining BC (P = 0.0024 and P = 0.0011, respectively). Conclusions NEDD4 expression is elevated in BC and is associated with BC growth. NEDD4 correlated with clinicopathological parameters and predicts a poor prognosis. Thus, NEDD4 is a potential biomarker of poor prognosis and a potential therapeutic target for BC treatment.
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Affiliation(s)
- Lingfeng Wan
- Department of Breast Surgery, The First Affiliated Hospital, Sun Yat-sen University, No.58 of Zhongshan 2nd Road, Yuexiu District, Guangzhou, 510080, China.,Department of Radiation Oncology, The Ohio State University, Arthur G. James Comprehensive Cancer Center and Richard L. Solove Research Institute, 460 West 12th Ave, Columbus, OH, 43210, USA
| | - Tao Liu
- Department of Breast Surgery, The First Affiliated Hospital, Sun Yat-sen University, No.58 of Zhongshan 2nd Road, Yuexiu District, Guangzhou, 510080, China.,Department of Radiation Oncology, The Ohio State University, Arthur G. James Comprehensive Cancer Center and Richard L. Solove Research Institute, 460 West 12th Ave, Columbus, OH, 43210, USA
| | - Zhipeng Hong
- Department of Radiation Oncology, The Ohio State University, Arthur G. James Comprehensive Cancer Center and Richard L. Solove Research Institute, 460 West 12th Ave, Columbus, OH, 43210, USA.,Department of Breast Surgery, Affiliated Quanzhou First Hospital of Fujian Medical University, Quanzhou, 362000, China
| | - You Pan
- Department of Breast Surgery, The First Affiliated Hospital, Sun Yat-sen University, No.58 of Zhongshan 2nd Road, Yuexiu District, Guangzhou, 510080, China
| | - Steven T Sizemore
- Department of Radiation Oncology, The Ohio State University, Arthur G. James Comprehensive Cancer Center and Richard L. Solove Research Institute, 460 West 12th Ave, Columbus, OH, 43210, USA
| | - Junran Zhang
- Department of Radiation Oncology, The Ohio State University, Arthur G. James Comprehensive Cancer Center and Richard L. Solove Research Institute, 460 West 12th Ave, Columbus, OH, 43210, USA.
| | - Zhefu Ma
- Department of Breast Surgery, The First Affiliated Hospital, Sun Yat-sen University, No.58 of Zhongshan 2nd Road, Yuexiu District, Guangzhou, 510080, China. .,Department of Breast Surgery and Plastic Surgery, Cancer Hospital of China Medical University, 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, China.
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Consolidation-to-tumor ratio and tumor disappearance ratio are not independent prognostic factors for the patients with resected lung adenocarcinomas. Lung Cancer 2019; 137:123-128. [DOI: 10.1016/j.lungcan.2019.09.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 09/02/2019] [Accepted: 09/16/2019] [Indexed: 12/25/2022]
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Kim H, Goo JM, Paeng JC, Kim YT, Park CM. Evaluation of maximum standardized uptake value at fluorine-18 fluorodeoxyglucose positron emission tomography as a complementary T factor in the eighth edition of lung cancer stage classification. Lung Cancer 2019; 134:151-157. [DOI: 10.1016/j.lungcan.2019.06.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 05/28/2019] [Accepted: 06/12/2019] [Indexed: 12/25/2022]
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Cai H, Jing C, Chang X, Ding D, Han T, Yang J, Lu Z, Hu X, Liu Z, Wang J, Shang L, Wu S, Meng P, Lin L, Zhao J, Nie M, Yin K. Mutational landscape of gastric cancer and clinical application of genomic profiling based on target next-generation sequencing. J Transl Med 2019; 17:189. [PMID: 31164161 PMCID: PMC6549266 DOI: 10.1186/s12967-019-1941-0] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 05/29/2019] [Indexed: 11/10/2022] Open
Abstract
Background Gastric cancer (GC) is a leading cause of cancer deaths, and an increased number of GC patients adopt to next-generation sequencing (NGS) to identify tumor genomic alterations for precision medicine. Methods In this study, we established a hybridization capture-based NGS panel including 612 cancer-associated genes, and collected sequencing data of tumors and matched bloods from 153 gastric cancer patients. We performed comprehensive analysis of these sequencing and clinical data. Results 35 significantly mutated genes were identified such as TP53, AKAP9, DRD2, PTEN, CDH1, LRP2 et al. Among them, 29 genes were novel significantly mutated genes compared with TCGA study. TP53 is the top frequently mutated gene, and tends to mutate in male (p = 0.025) patients and patients whose tumor located in cardia (p = 0.011). High tumor mutation burden (TMB) gathered in TP53 wild-type tumors (p = 0.045). TMB was also significantly associated with DNA damage repair (DDR) genes genotype (p = 0.047), Lauren classification (p = 1.5e−5), differentiation (1.9e−7), and HER2 status (p = 0.023). 38.31% of gastric cancer patients harbored at least one actionable alteration according to OncoKB database. Conclusions We drew a comprehensive mutational landscape of 153 gastric tumors and demonstrated utility of target next-generation sequencing to guide clinical management. Electronic supplementary material The online version of this article (10.1186/s12967-019-1941-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hui Cai
- Department of Gastrointestinal Surgery, Changhai Hospital, The Second Military Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China
| | - Changqing Jing
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, China
| | - Xusheng Chang
- Department of Gastrointestinal Surgery, Changhai Hospital, The Second Military Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China
| | - Dan Ding
- Department of Gastrointestinal Surgery, Changhai Hospital, The Second Military Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China
| | - Ting Han
- Department of Gastrointestinal Surgery, Changhai Hospital, The Second Military Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China
| | - Junchi Yang
- Department of Gastrointestinal Surgery, Changhai Hospital, The Second Military Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China
| | - Zhengmao Lu
- Department of Gastrointestinal Surgery, Changhai Hospital, The Second Military Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China
| | - Xuguang Hu
- Department of Gastrointestinal Surgery, Changhai Hospital, The Second Military Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China
| | - Zhaorui Liu
- Department of Gastrointestinal Surgery, Changhai Hospital, The Second Military Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China
| | - Jinshen Wang
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, China
| | - Liang Shang
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, China
| | - Shouxin Wu
- Zhangjiang Center for Translational Medicine, Shanghai Biotecan Pharmaceuticals Co., Ltd., 180 Zhangheng Road, Shanghai, 201204, China.,Shanghai Zhangjiang Institute of Medical Innovation, Shanghai, 201204, China
| | - Peng Meng
- Zhangjiang Center for Translational Medicine, Shanghai Biotecan Pharmaceuticals Co., Ltd., 180 Zhangheng Road, Shanghai, 201204, China.,Shanghai Zhangjiang Institute of Medical Innovation, Shanghai, 201204, China
| | - Ling Lin
- Zhangjiang Center for Translational Medicine, Shanghai Biotecan Pharmaceuticals Co., Ltd., 180 Zhangheng Road, Shanghai, 201204, China.,Shanghai Zhangjiang Institute of Medical Innovation, Shanghai, 201204, China
| | - Jiangman Zhao
- Zhangjiang Center for Translational Medicine, Shanghai Biotecan Pharmaceuticals Co., Ltd., 180 Zhangheng Road, Shanghai, 201204, China. .,Shanghai Zhangjiang Institute of Medical Innovation, Shanghai, 201204, China.
| | - Mingming Nie
- Department of Gastrointestinal Surgery, Changhai Hospital, The Second Military Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China.
| | - Kai Yin
- Department of Gastrointestinal Surgery, Changhai Hospital, The Second Military Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China.
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Clinical T categorization in stage IA lung adenocarcinomas: prognostic implications of CT display window settings for solid portion measurement. Eur Radiol 2019; 29:6069-6079. [DOI: 10.1007/s00330-019-06216-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 03/04/2019] [Accepted: 04/02/2019] [Indexed: 12/17/2022]
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30
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Chandarlapaty S, Razavi P. Cyclin E mRNA: Assessing Cyclin-Dependent Kinase (CDK) Activation State to Elucidate Breast Cancer Resistance to CDK4/6 Inhibitors. J Clin Oncol 2019; 37:1148-1150. [PMID: 30920879 DOI: 10.1200/jco.19.00090] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
| | - Pedram Razavi
- 1 Memorial Sloan Kettering Cancer Center, New York, NY
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31
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Kim H, Goo JM, Kim YT, Park CM. Clinical T Category of Non–Small Cell Lung Cancers: Prognostic Performance of Unidimensional versus Bidimensional Measurements at CT. Radiology 2019; 290:807-813. [DOI: 10.1148/radiol.2019182068] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Hyungjin Kim
- From the Department of Radiology (H.K., J.M.G., C.M.P.) and Department of Thoracic and Cardiovascular Surgery (Y.T.K.), Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea; Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Korea (J.M.G., C.M.P.); and Cancer Research Institute, Seoul National University, Seoul, Korea (J.M.G., Y.T.K., C.M.P.)
| | - Jin Mo Goo
- From the Department of Radiology (H.K., J.M.G., C.M.P.) and Department of Thoracic and Cardiovascular Surgery (Y.T.K.), Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea; Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Korea (J.M.G., C.M.P.); and Cancer Research Institute, Seoul National University, Seoul, Korea (J.M.G., Y.T.K., C.M.P.)
| | - Young Tae Kim
- From the Department of Radiology (H.K., J.M.G., C.M.P.) and Department of Thoracic and Cardiovascular Surgery (Y.T.K.), Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea; Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Korea (J.M.G., C.M.P.); and Cancer Research Institute, Seoul National University, Seoul, Korea (J.M.G., Y.T.K., C.M.P.)
| | - Chang Min Park
- From the Department of Radiology (H.K., J.M.G., C.M.P.) and Department of Thoracic and Cardiovascular Surgery (Y.T.K.), Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea; Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Korea (J.M.G., C.M.P.); and Cancer Research Institute, Seoul National University, Seoul, Korea (J.M.G., Y.T.K., C.M.P.)
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Zhao ZM, Yost SE, Hutchinson KE, Li SM, Yuan YC, Noorbakhsh J, Liu Z, Warden C, Johnson RM, Wu X, Chuang JH, Yuan Y. CCNE1 amplification is associated with poor prognosis in patients with triple negative breast cancer. BMC Cancer 2019; 19:96. [PMID: 30665374 PMCID: PMC6341717 DOI: 10.1186/s12885-019-5290-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 01/07/2019] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Triple negative breast cancer (TNBC) is aggressive with limited treatment options upon recurrence. Molecular discordance between primary and metastatic TNBC has been observed, but the degree of biological heterogeneity has not been fully explored. Furthermore, genomic evolution through treatment is poorly understood. In this study, we aim to characterize the genomic changes between paired primary and metastatic TNBCs through transcriptomic and genomic profiling, and to identify genomic alterations which may contribute to chemotherapy resistance. METHODS Genomic alterations and mRNA expression of 10 paired primary and metastatic TNBCs were determined through targeted sequencing, microarray analysis, and RNA sequencing. Commonly mutated genes, as well as differentially expressed and co-expressed genes were identified. We further explored the clinical relevance of differentially expressed genes between primary and metastatic tumors to patient survival using large public datasets. RESULTS Through gene expression profiling, we observed a shift in TNBC subtype classifications between primary and metastatic TNBCs. A panel of eight cancer driver genes (CCNE1, TPX2, ELF3, FANCL, JAK2, GSK3B, CEP76, and SYK) were differentially expressed in recurrent TNBCs, and were also overexpressed in TCGA and METABRIC. CCNE1 and TPX2 were co-overexpressed in TNBCs. DNA mutation profiling showed that multiple mutations occurred in genes comprising a number of potentially targetable pathways including PI3K/AKT/mTOR, RAS/MAPK, cell cycle, and growth factor receptor signaling, reaffirming the wide heterogeneity of mechanisms driving TNBC. CCNE1 amplification was associated with poor overall survival in patients with metastatic TNBC. CONCLUSIONS CCNE1 amplification may confer resistance to chemotherapy and is associated with poor overall survival in TNBC.
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Affiliation(s)
- Zi-Ming Zhao
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | - Susan E Yost
- City of Hope Comprehensive Cancer Center and Beckman Research Institute, 1500 E. Duarte Road, Duarte, CA, 91010, USA
| | | | - Sierra Min Li
- City of Hope Comprehensive Cancer Center and Beckman Research Institute, 1500 E. Duarte Road, Duarte, CA, 91010, USA
| | - Yate-Ching Yuan
- City of Hope Comprehensive Cancer Center and Beckman Research Institute, 1500 E. Duarte Road, Duarte, CA, 91010, USA
| | - Javad Noorbakhsh
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | - Zheng Liu
- City of Hope Comprehensive Cancer Center and Beckman Research Institute, 1500 E. Duarte Road, Duarte, CA, 91010, USA
| | - Charles Warden
- City of Hope Comprehensive Cancer Center and Beckman Research Institute, 1500 E. Duarte Road, Duarte, CA, 91010, USA
| | - Radia M Johnson
- Genentech, Inc., Oncology Biomarker Development, South San Francisco, CA, USA
| | - Xiwei Wu
- City of Hope Comprehensive Cancer Center and Beckman Research Institute, 1500 E. Duarte Road, Duarte, CA, 91010, USA
| | - Jeffrey H Chuang
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | - Yuan Yuan
- City of Hope Comprehensive Cancer Center and Beckman Research Institute, 1500 E. Duarte Road, Duarte, CA, 91010, USA.
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Portman N, Alexandrou S, Carson E, Wang S, Lim E, Caldon CE. Overcoming CDK4/6 inhibitor resistance in ER-positive breast cancer. Endocr Relat Cancer 2019; 26:R15-R30. [PMID: 30389903 DOI: 10.1530/erc-18-0317] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 09/17/2018] [Indexed: 12/21/2022]
Abstract
Three inhibitors of CDK4/6 kinases were recently FDA approved for use in combination with endocrine therapy, and they significantly increase the progression-free survival of patients with advanced estrogen receptor-positive (ER+) breast cancer in the first-line treatment setting. As the new standard of care in some countries, there is the clinical emergence of patients with breast cancer that is both CDK4/6 inhibitor and endocrine therapy resistant. The strategies to combat these cancers with resistance to multiple treatments are not yet defined and represent the next major clinical challenge in ER+ breast cancer. In this review, we discuss how the molecular landscape of endocrine therapy resistance may affect the response to CDK4/6 inhibitors, and how this intersects with biomarkers of intrinsic insensitivity. We identify the handful of pre-clinical models of acquired resistance to CDK4/6 inhibitors and discuss whether the molecular changes in these models are likely to be relevant or modified in the context of endocrine therapy resistance. Finally, we consider the crucial question of how some of these changes are potentially amenable to therapy.
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Affiliation(s)
- Neil Portman
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, New South Wales, Australia
- St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, New South Wales, Australia
| | - Sarah Alexandrou
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, New South Wales, Australia
- St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, New South Wales, Australia
| | - Emma Carson
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, New South Wales, Australia
- St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, New South Wales, Australia
| | - Shudong Wang
- Centre for Drug Discovery and Development, Cancer Research Institute, University of South Australia, Adelaide, South Australia, Australia
| | - Elgene Lim
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, New South Wales, Australia
- St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, New South Wales, Australia
| | - C Elizabeth Caldon
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, New South Wales, Australia
- St. Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, New South Wales, Australia
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Caruso JA, Duong MT, Carey JPW, Hunt KK, Keyomarsi K. Low-Molecular-Weight Cyclin E in Human Cancer: Cellular Consequences and Opportunities for Targeted Therapies. Cancer Res 2018; 78:5481-5491. [PMID: 30194068 PMCID: PMC6168358 DOI: 10.1158/0008-5472.can-18-1235] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 06/18/2018] [Accepted: 07/18/2018] [Indexed: 01/03/2023]
Abstract
Cyclin E, a regulatory subunit of cyclin-dependent kinase 2 (CDK2), is central to the initiation of DNA replication at the G1/S checkpoint. Tight temporal control of cyclin E is essential to the coordination of cell-cycle processes and the maintenance of genome integrity. Overexpression of cyclin E in human tumors was first observed in the 1990s and led to the identification of oncogenic roles for deregulated cyclin E in experimental models. A decade later, low-molecular-weight cyclin E (LMW-E) isoforms were observed in aggressive tumor subtypes. Compared with full-length cyclin E, LMW-E hyperactivates CDK2 through increased complex stability and resistance to the endogenous inhibitors p21CIP1 and p27KIP1 LMW-E is predominantly generated by neutrophil elastase-mediated proteolytic cleavage, which eliminates the N-terminal cyclin E nuclear localization signal and promotes cyclin E's accumulation in the cytoplasm. Compared with full-length cyclin E, the aberrant localization and unique stereochemistry of LMW-E dramatically alters the substrate specificity and selectivity of CDK2, increasing tumorigenicity in experimental models. Cytoplasmic LMW-E, which can be assessed by IHC, is prognostic of poor survival and predicts resistance to standard therapies in patients with cancer. These patients may benefit from therapeutic modalities targeting the altered biochemistry of LMW-E or its associated vulnerabilities. Cancer Res; 78(19); 5481-91. ©2018 AACR.
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Affiliation(s)
- Joseph A Caruso
- Department of Pathology, University of California, San Francisco, San Francisco, California.
| | | | - Jason P W Carey
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kelly K Hunt
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Khandan Keyomarsi
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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35
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Chen X, Low KH, Alexander A, Jiang Y, Karakas C, Hess KR, Carey JPW, Bui TN, Vijayaraghavan S, Evans KW, Yi M, Ellis DC, Cheung KL, Ellis IO, Fu S, Meric-Bernstam F, Hunt KK, Keyomarsi K. Cyclin E Overexpression Sensitizes Triple-Negative Breast Cancer to Wee1 Kinase Inhibition. Clin Cancer Res 2018; 24:6594-6610. [PMID: 30181387 DOI: 10.1158/1078-0432.ccr-18-1446] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 08/21/2018] [Accepted: 08/29/2018] [Indexed: 12/22/2022]
Abstract
PURPOSE Poor prognosis in triple-negative breast cancer (TNBC) is due to an aggressive phenotype and lack of biomarker-driven targeted therapies. Overexpression of cyclin E and phosphorylated-CDK2 are correlated with poor survival in patients with TNBC, and the absence of CDK2 desensitizes cells to inhibition of Wee1 kinase, a key cell-cycle regulator. We hypothesize that cyclin E expression can predict response to therapies, which include the Wee1 kinase inhibitor, AZD1775. EXPERIMENTAL DESIGN Mono- and combination therapies with AZD1775 were evaluated in TNBC cell lines and multiple patient-derived xenograft (PDX) models with different cyclin E expression profiles. The mechanism(s) of cyclin E-mediated replicative stress were investigated following cyclin E induction or CRISPR/Cas9 knockout by a number of assays in multiple cell lines. RESULTS Cyclin E overexpression (i) is enriched in TNBCs with high recurrence rates, (ii) sensitizes TNBC cell lines and PDX models to AZD1775, (iii) leads to CDK2-dependent activation of DNA replication stress pathways, and (iv) increases Wee1 kinase activity. Moreover, treatment of cells with either CDK2 inhibitors or carboplatin leads to transient transcriptional induction of cyclin E (in cyclin E-low tumors) and result in DNA replicative stress. Such drug-mediated cyclin E induction in TNBC cells and PDX models sensitizes them to AZD1775 in a sequential treatment combination strategy.Conclusions: Cyclin E is a potential biomarker of response (i) for AZD1775 as monotherapy in cyclin E-high TNBC tumors and (ii) for sequential combination therapy with CDK2 inhibitor or carboplatin followed by AZD1775 in cyclin E-low TNBC tumors.
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Affiliation(s)
- Xian Chen
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
| | - Kwang-Huei Low
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Angela Alexander
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yufeng Jiang
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Cansu Karakas
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kenneth R Hess
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jason P W Carey
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Tuyen N Bui
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Smruthi Vijayaraghavan
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kurt W Evans
- Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Min Yi
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - D Christian Ellis
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kwok-Leung Cheung
- School of Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Ian O Ellis
- School of Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Siqing Fu
- Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Funda Meric-Bernstam
- Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kelly K Hunt
- Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Khandan Keyomarsi
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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E Hermosilla V, Salgado G, Riffo E, Escobar D, Hepp MI, Farkas C, Galindo M, Morín V, García-Robles MA, Castro AF, Pincheira R. SALL2 represses cyclins D1 and E1 expression and restrains G1/S cell cycle transition and cancer-related phenotypes. Mol Oncol 2018; 12:1026-1046. [PMID: 29689621 PMCID: PMC6026872 DOI: 10.1002/1878-0261.12308] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 02/27/2018] [Accepted: 02/28/2018] [Indexed: 12/25/2022] Open
Abstract
SALL2 is a poorly characterized transcription factor that belongs to the Spalt‐like family involved in development. Mutations on SALL2 have been associated with ocular coloboma and cancer. In cancers, SALL2 is deregulated and is proposed as a tumor suppressor in ovarian cancer. SALL2 has been implicated in stemness, cell death, proliferation, and quiescence. However, mechanisms underlying roles of SALL2 related to cancer remain largely unknown. Here, we investigated the role of SALL2 in cell proliferation using mouse embryo fibroblasts (MEFs) derived from Sall2−/− mice. Compared to Sall2+/+ MEFs, Sall2−/− MEFs exhibit enhanced cell proliferation and faster postmitotic progression through G1 and S phases. Accordingly, Sall2−/− MEFs exhibit higher mRNA and protein levels of cyclins D1 and E1. Chromatin immunoprecipitation and promoter reporter assays showed that SALL2 binds and represses CCND1 and CCNE1 promoters, identifying a novel mechanism by which SALL2 may control cell cycle. In addition, the analysis of tissues from Sall2+/+ and Sall2−/− mice confirmed the inverse correlation between expression of SALL2 and G1‐S cyclins. Consistent with an antiproliferative function of SALL2, immortalized Sall2−/− MEFs showed enhanced growth rate, foci formation, and anchorage‐independent growth, confirming tumor suppressor properties for SALL2. Finally, cancer data analyses show negative correlations between SALL2 and G1‐S cyclins’ mRNA levels in several cancers. Altogether, our results demonstrated that SALL2 is a negative regulator of cell proliferation, an effect mediated in part by repression of G1‐S cyclins’ expression. Our results have implications for the understanding and significance of SALL2 role under physiological and pathological conditions.
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Affiliation(s)
- Viviana E Hermosilla
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Chile
| | - Ginessa Salgado
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Chile
| | - Elizabeth Riffo
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Chile
| | - David Escobar
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Chile
| | - Matías I Hepp
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Chile
| | - Carlos Farkas
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Chile
| | - Mario Galindo
- Millennium Institute on Immunology and Immunotherapy, University of Chile, Santiago, Chile.,Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Violeta Morín
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Chile
| | - María A García-Robles
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Chile
| | - Ariel F Castro
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Chile
| | - Roxana Pincheira
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Chile
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Xiong Z, Ye L, Zhenyu H, Li F, Xiong Y, Lin C, Wu X, Deng G, Shi W, Song L, Yuan Z, Wang X. ANP32E induces tumorigenesis of triple-negative breast cancer cells by upregulating E2F1. Mol Oncol 2018; 12:896-912. [PMID: 29633513 PMCID: PMC5983205 DOI: 10.1002/1878-0261.12202] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 03/16/2018] [Accepted: 03/17/2018] [Indexed: 12/15/2022] Open
Abstract
Triple‐negative breast cancer (TNBC) lacks expression of estrogen receptor (ER), progesterone receptor, and the HER2 receptor; it is highly proliferative and becomes the deadliest forms of breast cancer. Effective prognostic methods and therapeutic targets for TNBC are required to improve patient outcomes. Here, we report that acidic nuclear phosphoprotein 32 family member E (ANP32E), which promotes cell proliferation in mammalian development, is highly expressed in TNBC cells compared to other types of breast cancer. High expression of ANP32E correlates significantly with worse overall survival (OS; P < 0.001) and higher risks of disease recurrence (P < 0.001) in patients with TNBC. Univariate and multivariate Cox‐regression models show that ANP32E is an independent prognostic factor in TNBC. Furthermore, we discovered that ANP32E promotes tumor proliferation in vitro by inducing G1/S transition, and ANP32E inhibition suppresses tumor formation in vivo. By examining the expression of E2F1, cyclin E1, and cyclin E2, we discovered that ANP32E promotes the G1/S transition by transcriptionally inducing E2F1. Taken together, our study shows that ANP32E is an efficient prognostic marker, and it promotes the G1/S transition and induces tumorigenesis of TNBC cells by transcriptionally inducing E2F1.
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Affiliation(s)
- Zhenchong Xiong
- Department of Breast SurgeryState Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Liping Ye
- Department of Experimental ResearchState Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - He Zhenyu
- Department of Radiation OncologyState Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Fengyan Li
- Department of Radiation OncologyState Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Yahui Xiong
- The First College of Clinical MedicineSouthern Medical UniversityGuangzhouChina
| | - Chuyong Lin
- Department of Experimental ResearchState Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Xianqiu Wu
- Department of Experimental ResearchState Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Guangzheng Deng
- Department of Breast SurgeryState Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Wei Shi
- Department of Medical OncologyState Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Libing Song
- Department of Experimental ResearchState Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Zhongyu Yuan
- Department of Medical OncologyState Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Xi Wang
- Department of Breast SurgeryState Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
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38
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Potential biomarkers of CDK4/6 inhibitors in hormone receptor-positive advanced breast cancer. Breast Cancer Res Treat 2017; 168:287-297. [DOI: 10.1007/s10549-017-4612-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 12/06/2017] [Indexed: 12/11/2022]
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Alexander A, Karakas C, Chen X, Carey JPW, Yi M, Bondy M, Thompson P, Cheung KL, Ellis IO, Gong Y, Krishnamurthy S, Alvarez RH, Ueno NT, Hunt KK, Keyomarsi K. Cyclin E overexpression as a biomarker for combination treatment strategies in inflammatory breast cancer. Oncotarget 2017; 8:14897-14911. [PMID: 28107181 PMCID: PMC5362453 DOI: 10.18632/oncotarget.14689] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 12/26/2016] [Indexed: 12/18/2022] Open
Abstract
Inflammatory breast cancer (IBC) is a virulent form of breast cancer, and novel treatment strategies are urgently needed. Immunohistochemical analysis of tumors from women with a clinical diagnosis of IBC (n = 147) and those with non-IBC breast cancer (n = 2510) revealed that, whereas in non-IBC cases cytoplasmic cyclin E was highly correlated with poor prognosis (P < 0.001), in IBC cases both nuclear and cytoplasmic cyclin E were indicative of poor prognosis. These results underscored the utility of the cyclin E/CDK2 complex as a novel target for treatment. Because IBC cell lines were highly sensitive to the CDK2 inhibitors dinaciclib and meriolin 5, we developed a high-throughput survival assay (HTSA) to design novel sequential combination strategies based on the presence of cyclin E and CDK2. Using a 14-cell-line panel, we found that dinaciclib potentiated the activity of DNA-damaging chemotherapies treated in a sequence of dinaciclib followed by chemotherapy, whereas this was not true for paclitaxel. We also identified a signature of DNA repair–related genes that are downregulated by dinaciclib, suggesting that global DNA repair is inhibited and that prolonged DNA damage leads to apoptosis. Taken together, our findings argue that CDK2-targeted combinations may be viable strategies in IBC worthy of future clinical investigation.
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Affiliation(s)
- Angela Alexander
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, Texas, USA
| | - Cansu Karakas
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Xian Chen
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Jason P W Carey
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Min Yi
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Melissa Bondy
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Patricia Thompson
- Department of Pathology, Stony Brook School of Medicine, Stony Brook, New York, USA
| | | | - Ian O Ellis
- University of Nottingham, School of Medicine, Nottingham, UK
| | - Yun Gong
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Savitri Krishnamurthy
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, Texas, USA
| | - Ricardo H Alvarez
- Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, Texas, USA.,Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Naoto T Ueno
- Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, Texas, USA.,Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Kelly K Hunt
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Khandan Keyomarsi
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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Doostan I, Karakas C, Kohansal M, Low KH, Ellis MJ, Olson JA, Suman VJ, Hunt KK, Moulder SL, Keyomarsi K. Cytoplasmic Cyclin E Mediates Resistance to Aromatase Inhibitors in Breast Cancer. Clin Cancer Res 2017; 23:7288-7300. [PMID: 28947566 DOI: 10.1158/1078-0432.ccr-17-1544] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 08/08/2017] [Accepted: 09/19/2017] [Indexed: 01/15/2023]
Abstract
Purpose: Preoperative aromatase inhibitor (AI) therapy has demonstrated efficacy in hormone receptor (HR)-positive postmenopausal breast cancer. However, many patients have disease that is either intrinsically resistant to AIs or that responds initially but develops resistance after prolonged exposure. We have shown that patients with breast tumors expressing the deregulated forms of cyclin E [low molecular weight forms (LMW-E)] have poor overall survival. Herein, we hypothesize that LMW-E expression can identify HR-positive tumors that are unresponsive to neoadjuvant AI therapy due to the inability of AIs to induce a cytostatic effect.Experimental Design: LMW-E was examined in breast cancer specimens from 58 patients enrolled in the American College of Surgeons Oncology Group Z1031, a neoadjuvant AI clinical trial. The mechanisms of LMW-E-mediated resistance to AI were evaluated in vitro and in vivo using an inducible model system of cyclin E (full-length and LMW-E) in aromatase-overexpressing MCF7 cells.Results: Breast cancer recurrence-free interval was significantly worse in patients with LMW-E-positive tumors who received AI neoadjuvant therapy, compared with those with LMW-E negative tumors. Upon LMW-E induction, MCF7 xenografts were unresponsive to letrozole in vivo, resulting in increased tumor volume after treatment with AIs. LMW-E expression overcame cell-cycle inhibition by AIs in a CDK2/Rb-dependent manner, and inhibition of CDK2 by dinaciclib reversed LMW-E-mediated resistance, whereas treatment with palbociclib, a CDK4/6 inhibitor, did not.Conclusions: Collectively, these findings suggest that cell-cycle deregulation by LMW-E mediates resistance to AIs and a combination of CDK2 inhibitors and AIs may be an effective treatment in patients with HR-positive tumors that express LMW-E. Clin Cancer Res; 23(23); 7288-300. ©2017 AACR.
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Affiliation(s)
- Iman Doostan
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Graduate School of Biomedical Sciences, University of Texas Health Science Center at Houston, Houston, Texas
| | - Cansu Karakas
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Mehrnoosh Kohansal
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kwang-Hui Low
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Matthew J Ellis
- Department of Breast Cancer, Baylor College of Medicine, Houston, Texas
| | - John A Olson
- Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina.,Department of Surgery, Greenebaum Cancer Center, University of Maryland, Baltimore, Maryland
| | - Vera J Suman
- Alliance Statistics and Data Center, Mayo Clinic, Rochester, Minnesota
| | - Kelly K Hunt
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Stacy L Moulder
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Khandan Keyomarsi
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas. .,Graduate School of Biomedical Sciences, University of Texas Health Science Center at Houston, Houston, Texas
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Alonso-Lecue P, de Pedro I, Coulon V, Molinuevo R, Lorz C, Segrelles C, Ceballos L, López-Aventín D, García-Valtuille A, Bernal JM, Mazorra F, Pujol RM, Paramio J, Ramón Sanz J, Freije A, Toll A, Gandarillas A. Inefficient differentiation response to cell cycle stress leads to genomic instability and malignant progression of squamous carcinoma cells. Cell Death Dis 2017; 8:e2901. [PMID: 28661481 PMCID: PMC5520915 DOI: 10.1038/cddis.2017.259] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 04/12/2017] [Accepted: 05/04/2017] [Indexed: 12/14/2022]
Abstract
Squamous cell carcinoma (SCC) or epidermoid cancer is a frequent and aggressive malignancy. However in apparent paradox it retains the squamous differentiation phenotype except for very dysplastic lesions. We have shown that cell cycle stress in normal epidermal keratinocytes triggers a squamous differentiation response involving irreversible mitosis block and polyploidisation. Here we show that cutaneous SCC cells conserve a partial squamous DNA damage-induced differentiation response that allows them to overcome the cell division block. The capacity to divide in spite of drug-induced mitotic stress and DNA damage made well-differentiated SCC cells more genomically instable and more malignant in vivo. Consistently, in a series of human biopsies, non-metastatic SCCs displayed a higher degree of chromosomal alterations and higher expression of the S phase regulator Cyclin E and the DNA damage signal γH2AX than the less aggressive, non-squamous, basal cell carcinomas. However, metastatic SCCs lost the γH2AX signal and Cyclin E, or accumulated cytoplasmic Cyclin E. Conversely, inhibition of endogenous Cyclin E in well-differentiated SCC cells interfered with the squamous phenotype. The results suggest a dual role of cell cycle stress-induced differentiation in squamous cancer: the resulting mitotic blocks would impose, when irreversible, a proliferative barrier, when reversible, a source of genomic instability, thus contributing to malignancy.
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Affiliation(s)
- Pilar Alonso-Lecue
- Cell Cycle, Stem Cell Fate and Cancer Laboratory, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - Isabel de Pedro
- Cell Cycle, Stem Cell Fate and Cancer Laboratory, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - Vincent Coulon
- Institut de Genétique Moléculaire de Montpellier, CNRS/UM2, Montpellier, France
| | - Rut Molinuevo
- Cell Cycle, Stem Cell Fate and Cancer Laboratory, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - Corina Lorz
- Molecular Oncology Unit, Department of Basic Research, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), CIBERONC, Madrid, Spain
| | - Carmen Segrelles
- Molecular Oncology Unit, Department of Basic Research, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), CIBERONC, Madrid, Spain
| | - Laura Ceballos
- Cell Cycle, Stem Cell Fate and Cancer Laboratory, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain
| | | | | | - José M Bernal
- Cell Cycle, Stem Cell Fate and Cancer Laboratory, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain.,Department of Cardiovascular Surgery, Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | - Francisco Mazorra
- Clínica Mompía, Mompía, Spain.,Department of Pathology, Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | - Ramón M Pujol
- Department of Dermatology, Hospital del Mar, Barcelona, Spain.,Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain
| | - Jesús Paramio
- Molecular Oncology Unit, Department of Basic Research, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), CIBERONC, Madrid, Spain
| | - J Ramón Sanz
- Cell Cycle, Stem Cell Fate and Cancer Laboratory, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain.,Clínica Mompía, Mompía, Spain.,Department of Plastic Surgery, Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | - Ana Freije
- Cell Cycle, Stem Cell Fate and Cancer Laboratory, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - Agustí Toll
- Department of Dermatology, Hospital del Mar, Barcelona, Spain.,Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain
| | - Alberto Gandarillas
- Cell Cycle, Stem Cell Fate and Cancer Laboratory, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain.,INSERM, Languedoc-Roussillon, Montpellier, France
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CDK4/6 and autophagy inhibitors synergistically induce senescence in Rb positive cytoplasmic cyclin E negative cancers. Nat Commun 2017; 8:15916. [PMID: 28653662 PMCID: PMC5490269 DOI: 10.1038/ncomms15916] [Citation(s) in RCA: 195] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 05/12/2017] [Indexed: 02/07/2023] Open
Abstract
Deregulation of the cell cycle machinery is a hallmark of cancer. While CDK4/6 inhibitors are FDA approved (palbociclib) for treating advanced estrogen receptor-positive breast cancer, two major clinical challenges remain: (i) adverse events leading to therapy discontinuation and (ii) lack of reliable biomarkers. Here we report that breast cancer cells activate autophagy in response to palbociclib, and that the combination of autophagy and CDK4/6 inhibitors induces irreversible growth inhibition and senescence in vitro, and diminishes growth of cell line and patient-derived xenograft tumours in vivo. Furthermore, intact G1/S transition (Rb-positive and low-molecular-weight isoform of cyclin E (cytoplasmic)-negative) is a reliable prognostic biomarker in ER positive breast cancer patients, and predictive of preclinical sensitivity to this drug combination. Inhibition of CDK4/6 and autophagy is also synergistic in other solid cancers with an intact G1/S checkpoint, providing a novel and promising biomarker-driven combination therapeutic strategy to treat breast and other solid tumours. CDK4/6-Cyclin D pathway is often deregulated in cancer; therefore specific inhibitors have been developed. Here the authors show that treatment with CDK4/6 inhibitors activate autophagy in breast cancer cells; thus, combination of such inhibitors with autophagy inhibitors results in a synergistic effect on tumour growth.
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Cai Z, Liu Q. Cell Cycle Regulation in Treatment of Breast Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1026:251-270. [PMID: 29282688 DOI: 10.1007/978-981-10-6020-5_12] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Cell cycle progression and cell proliferation are under precise and orchestrated control in normal cells. However, uncontrolled cell proliferation caused by aberrant cell cycle progression is a crucial characteristic of cancer. Understanding cell cycle progression and its regulation sheds light on cancer treatment. Agents targeting cell cycle regulators (such as CDKs) have been considered as promising candidates in cancer treatment. Although the first-generation pan-CDK inhibitors failed in clinical trials because of their adverse events and low efficacy, new selective CDK 4/6 inhibitors showed potent efficacy with tolerable safety in preclinical and clinical studies. Here we will review the mechanisms of cell cycle regulation and targeting key cell cycle regulators (such as CDKs) in breast cancer treatment. Particularly, we will discuss the mechanism of CDK inhibitors in disrupting cell cycle progression, the use of selective CDK4/6 inhibitors in treatment of advanced, hormone receptor (HR)-positive postmenopausal breast cancer patients, and other clinical trials that aim to extend the utilization of these agents.
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Affiliation(s)
- Zijie Cai
- Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yanjiang West Road, Guangzhou, 510120, Guangdong, China
| | - Qiang Liu
- Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yanjiang West Road, Guangzhou, 510120, Guangdong, China.
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