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Mhatre S, Srichand R, Sethumadhavan J, Mishra PB, Patil SD, Chavan RS, Joshi M, Shetty U. Dry Mouth Dilemma: A Comprehensive Review of Xerostomia in Complete Denture Wearers. Cureus 2024; 16:e58564. [PMID: 38770459 PMCID: PMC11102879 DOI: 10.7759/cureus.58564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2024] [Indexed: 05/22/2024] Open
Abstract
Xerostomia, commonly known as dry mouth, presents a significant challenge for individuals wearing complete dentures, affecting their oral health and quality of life. This review explores the relationship between saliva and complete dentures, highlighting the varied management strategies for xerostomia. Saliva plays a critical role in denture retention, lubrication, and oral environment buffering. Complete denture wearers often experience reduced salivary flow, aggravating symptoms of xerostomia. Various management approaches are discussed, including general measures such as hydration and salivary stimulation techniques which aim to boost saliva production naturally. The use of salivary substitutes provides artificial lubrication and moisture to alleviate dry mouth discomfort. Oral lubricating devices, such as sprays, gels, and lozenges, offer relief by mimicking saliva's lubricating properties, thereby improving denture stability and comfort. This review addresses the etiology of xerostomia in complete denture wearers and explores preventive measures to reduce its impact. A comprehensive approach has been discussed for the management of xerostomia which will help to improve the oral health and well-being of complete denture wearers experiencing dry mouth.
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Affiliation(s)
- Swapnali Mhatre
- Department of Prosthodontics and Crown and Bridge, Dental College and Hospital, Bharati Vidyapeeth (Deemed to be University), Navi Mumbai, IND
| | - Reema Srichand
- Department of Prosthodontics and Crown and Bridge, Dental College and Hospital, Bharati Vidyapeeth (Deemed to be University), Navi Mumbai, IND
| | - Jyotsna Sethumadhavan
- Department of Prosthodontics and Crown and Bridge, Dental College and Hospital, Bharati Vidyapeeth (Deemed to be University), Navi Mumbai, IND
| | - Pallavi B Mishra
- Medical School, Dental College and Hospital, Bharati Vidyapeeth (Deemed to be University), Navi Mumbai, IND
| | - Srushti D Patil
- Medical School, Dental College and Hospital, Bharati Vidyapeeth (Deemed to be University), Navi Mumbai, IND
| | - Riddhi S Chavan
- Medical School, Dental College and Hospital, Bharati Vidyapeeth (Deemed to be University), Navi Mumbai, IND
| | - Mridula Joshi
- Department of Prosthodontics and Crown and Bridge, Dental College and Hospital, Bharati Vidyapeeth (Deemed to be University), Navi Mumbai, IND
| | - Uttam Shetty
- Department of Prosthodontics and Crown and Bridge, Dental College and Hospital, Bharati Vidyapeeth (Deemed to be University), Navi Mumbai, IND
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Lumpp T, Stößer S, Fischer F, Hartwig A, Köberle B. Role of Epigenetics for the Efficacy of Cisplatin. Int J Mol Sci 2024; 25:1130. [PMID: 38256203 PMCID: PMC10816946 DOI: 10.3390/ijms25021130] [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: 11/30/2023] [Revised: 01/05/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024] Open
Abstract
The clinical utility of the chemotherapeutic agent cisplatin is restricted by cancer drug resistance, which is either intrinsic to the tumor or acquired during therapy. Epigenetics is increasingly recognized as a factor contributing to cisplatin resistance and hence influences drug efficacy and clinical outcomes. In particular, epigenetics regulates gene expression without changing the DNA sequence. Common types of epigenetic modifications linked to chemoresistance are DNA methylation, histone modification, and non-coding RNAs. This review provides an overview of the current findings of various epigenetic modifications related to cisplatin efficacy in cell lines in vitro and in clinical tumor samples. Furthermore, it discusses whether epigenetic alterations might be used as predictors of the platinum agent response in order to prevent avoidable side effects in patients with resistant malignancies. In addition, epigenetic targeting therapies are described as a possible strategy to render cancer cells more susceptible to platinum drugs.
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Affiliation(s)
| | | | | | | | - Beate Köberle
- Department Food Chemistry and Toxicology, Institute of Applied Biosciences, Karlsruhe Institute of Technology, Adenauerring 20a, 76131 Karlsruhe, Germany; (T.L.); (S.S.); (F.F.); (A.H.)
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3
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Obidiro O, Battogtokh G, Akala EO. Triple Negative Breast Cancer Treatment Options and Limitations: Future Outlook. Pharmaceutics 2023; 15:1796. [PMID: 37513983 PMCID: PMC10384267 DOI: 10.3390/pharmaceutics15071796] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/19/2023] [Accepted: 06/21/2023] [Indexed: 07/30/2023] Open
Abstract
Triple negative breast cancer (TNBC) has a negative expression of estrogen receptors (ER), progesterone receptors (PR), and human epidermal growth factor receptors (HER2). The survival rate for TNBC is generally worse than other breast cancer subtypes. TNBC treatment has made significant advances, but certain limitations remain. Treatment for TNBC can be challenging since the disease has various molecular subtypes. A variety of treatment options are available, such as chemotherapy, immunotherapy, radiotherapy, and surgery. Chemotherapy is the most common of these options. TNBC is generally treated with systemic chemotherapy using drugs such as anthracyclines and taxanes in neoadjuvant or adjuvant settings. Developing resistance to anticancer drugs and off-target toxicity are the primary hindrances to chemotherapeutic solutions for cancer. It is imperative that researchers, clinicians, and pharmaceutical companies work together to develop effective treatment options for TNBC. Several studies have suggested nanotechnology as a potential solution to the problem of suboptimal TNBC treatment. In this review, we summarized possible treatment options for TNBC, including chemotherapy, immunotherapy, targeted therapy, combination therapy, and nanoparticle-based therapy, and some solutions for the treatment of TNBC in the future. Moreover, we gave general information about TNBC in terms of its characteristics and aggressiveness.
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Affiliation(s)
| | | | - Emmanuel O. Akala
- Center for Drug Research and Development, Department of Pharmaceutical Sciences, College of Pharmacy, Howard University, Washington, DC 20059, USA; (O.O.); (G.B.)
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4
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Molecular-Targeted Therapy for Tumor-Agnostic Mutations in Acute Myeloid Leukemia. Biomedicines 2022; 10:biomedicines10123008. [PMID: 36551764 PMCID: PMC9775249 DOI: 10.3390/biomedicines10123008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/09/2022] [Accepted: 11/14/2022] [Indexed: 11/24/2022] Open
Abstract
Comprehensive genomic profiling examinations (CGPs) have recently been developed, and a variety of tumor-agnostic mutations have been detected, leading to the development of new molecular-targetable therapies across solid tumors. In addition, the elucidation of hereditary tumors, such as breast and ovarian cancer, has pioneered a new age marked by the development of new treatments and lifetime management strategies required for patients with potential or presented hereditary cancers. In acute myeloid leukemia (AML), however, few tumor-agnostic or hereditary mutations have been the focus of investigation, with associated molecular-targeted therapies remaining poorly developed. We focused on representative tumor-agnostic mutations such as the TP53, KIT, KRAS, BRCA1, ATM, JAK2, NTRK3, FGFR3 and EGFR genes, referring to a CGP study conducted in Japan, and we considered the possibility of developing molecular-targeted therapies for AML with tumor-agnostic mutations. We summarized the frequency, the prognosis, the structure and the function of these mutations as well as the current treatment strategies in solid tumors, revealed the genetical relationships between solid tumors and AML and developed tumor-agnostic molecular-targeted therapies and lifetime management strategies in AML.
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van der Wiel AMA, Schuitmaker L, Cong Y, Theys J, Van Hoeck A, Vens C, Lambin P, Yaromina A, Dubois LJ. Homologous Recombination Deficiency Scar: Mutations and Beyond-Implications for Precision Oncology. Cancers (Basel) 2022; 14:cancers14174157. [PMID: 36077694 PMCID: PMC9454578 DOI: 10.3390/cancers14174157] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 02/05/2023] Open
Abstract
Homologous recombination deficiency (HRD) is a prevalent in approximately 17% of tumors and is associated with enhanced sensitivity to anticancer therapies inducing double-strand DNA breaks. Accurate detection of HRD would therefore allow improved patient selection and outcome of conventional and targeted anticancer therapies. However, current clinical assessment of HRD mainly relies on determining germline BRCA1/2 mutational status and is insufficient for adequate patient stratification as mechanisms of HRD occurrence extend beyond functional BRCA1/2 loss. HRD, regardless of BRCA1/2 status, is associated with specific forms of genomic and mutational signatures termed HRD scar. Detection of this HRD scar might therefore be a more reliable biomarker for HRD. This review discusses and compares different methods of assessing HRD and HRD scar, their advances into the clinic, and their potential implications for precision oncology.
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Affiliation(s)
- Alexander M. A. van der Wiel
- The M-Lab, Department of Precision Medicine, GROW—School for Oncology and Reproduction, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Lesley Schuitmaker
- The M-Lab, Department of Precision Medicine, GROW—School for Oncology and Reproduction, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Ying Cong
- The M-Lab, Department of Precision Medicine, GROW—School for Oncology and Reproduction, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Jan Theys
- The M-Lab, Department of Precision Medicine, GROW—School for Oncology and Reproduction, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Arne Van Hoeck
- Center for Molecular Medicine and Oncode Institute, University Medical Center Utrecht, 3584 CG Utrecht, The Netherlands
| | - Conchita Vens
- Institute of Cancer Science, University of Glasgow, Glasgow G61 1BD, Scotland, UK
- Department of Radiation Oncology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands
| | - Philippe Lambin
- The M-Lab, Department of Precision Medicine, GROW—School for Oncology and Reproduction, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Ala Yaromina
- The M-Lab, Department of Precision Medicine, GROW—School for Oncology and Reproduction, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Ludwig J. Dubois
- The M-Lab, Department of Precision Medicine, GROW—School for Oncology and Reproduction, Maastricht University, 6229 ER Maastricht, The Netherlands
- Correspondence:
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Song MH, Park JW, Kim MJ, Shin YK, Kim SC, Jeong SY, Ku JL. Colon cancer organoids using monoclonal organoids established in four different lesions of one cancer patient reveal tumor heterogeneity and different real-time responsiveness to anti-cancer drugs. Biomed Pharmacother 2022; 152:113260. [PMID: 35691158 DOI: 10.1016/j.biopha.2022.113260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/30/2022] [Accepted: 06/06/2022] [Indexed: 11/02/2022] Open
Abstract
Organoid culture technique has been taking center stage as a next-generation ex-vivo model due to advancement of stem cell research techniques. The importance of the laboratory-based ex vivo model has increasingly been recognized for recapitulating histological, and physioglocal conditions of in vivo microenviorment. Accordingly, the use of this technique has also broadened the understanding of intratumoral heterogeneity which is closely associated with varied drug responses observed in patients. Likewise, studies on heterogeneity within a single tumor tissue have drawn much attention. Here, we isolated 15 single clones from 4 tumor organoid lines from 1 patient at a primary passage from one patient. Each organoid line showed variable alterations in both genotype and phenotype. Furthermore, our methodological approach on drug test employing a high-throughput screening system enabled us to pinpoint the optimal time frame for anti-cancer drugs within a single tumor. We propose that our method can effectively reveal the heterogeneity of time-point in drug response, and the most optimal therapeutic strategies for individual patient.
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Affiliation(s)
- Myoung-Hyun Song
- Korean Cell Line Bank, Laboratory of Cell Biology, Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, South Korea; Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, South Korea; Cancer Research Institute, Seoul National University, Seoul 03080, South Korea
| | - Ji Won Park
- Cancer Research Institute, Seoul National University, Seoul 03080, South Korea; Department of Surgery, Seoul National University College of Medicine, Seoul 03080, South Korea
| | - Min Jung Kim
- Cancer Research Institute, Seoul National University, Seoul 03080, South Korea; Department of Surgery, Seoul National University College of Medicine, Seoul 03080, South Korea
| | - Young-Kyoung Shin
- Korean Cell Line Bank, Laboratory of Cell Biology, Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, South Korea
| | - Soon-Chan Kim
- Korean Cell Line Bank, Laboratory of Cell Biology, Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, South Korea; Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, South Korea; Cancer Research Institute, Seoul National University, Seoul 03080, South Korea; Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul 03080, South Korea
| | - Seung-Yong Jeong
- Cancer Research Institute, Seoul National University, Seoul 03080, South Korea; Department of Surgery, Seoul National University College of Medicine, Seoul 03080, South Korea; Seoul National University Boramae Medical Center, Seoul 07061, South Korea.
| | - Ja-Lok Ku
- Korean Cell Line Bank, Laboratory of Cell Biology, Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, South Korea; Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, South Korea; Cancer Research Institute, Seoul National University, Seoul 03080, South Korea; Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul 03080, South Korea.
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7
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Ali R, Aouida M, Alhaj Sulaiman A, Madhusudan S, Ramotar D. Can Cisplatin Therapy Be Improved? Pathways That Can Be Targeted. Int J Mol Sci 2022; 23:ijms23137241. [PMID: 35806243 PMCID: PMC9266583 DOI: 10.3390/ijms23137241] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 06/23/2022] [Accepted: 06/24/2022] [Indexed: 02/04/2023] Open
Abstract
Cisplatin (cis-diamminedichloroplatinum (II)) is the oldest known chemotherapeutic agent. Since the identification of its anti-tumour activity, it earned a remarkable place as a treatment of choice for several cancer types. It remains effective against testicular, bladder, lung, head and neck, ovarian, and other cancers. Cisplatin treatment triggers different cellular responses. However, it exerts its cytotoxic effects by generating inter-strand and intra-strand crosslinks in DNA. Tumour cells often develop tolerance mechanisms by effectively repairing cisplatin-induced DNA lesions or tolerate the damage by adopting translesion DNA synthesis. Cisplatin-associated nephrotoxicity is also a huge challenge for effective therapy. Several preclinical and clinical studies attempted to understand the major limitations associated with cisplatin therapy, and so far, there is no definitive solution. As such, a more comprehensive molecular and genetic profiling of patients is needed to identify those individuals that can benefit from platinum therapy. Additionally, the treatment regimen can be improved by combining cisplatin with certain molecular targeted therapies to achieve a balance between tumour toxicity and tolerance mechanisms. In this review, we discuss the importance of various biological processes that contribute to the resistance of cisplatin and its derivatives. We aim to highlight the processes that can be modulated to suppress cisplatin resistance and provide an insight into the role of uptake transporters in enhancing drug efficacy.
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Affiliation(s)
- Reem Ali
- Division of Biological and Biomedical Sciences, College of Health and Life Sciences, Hamad Bin Khalifa University, Education City, Qatar Foundation, Doha P.O. Box 34110, Qatar; (M.A.); (A.A.S.)
- Correspondence: (R.A.); (D.R.)
| | - Mustapha Aouida
- Division of Biological and Biomedical Sciences, College of Health and Life Sciences, Hamad Bin Khalifa University, Education City, Qatar Foundation, Doha P.O. Box 34110, Qatar; (M.A.); (A.A.S.)
| | - Abdallah Alhaj Sulaiman
- Division of Biological and Biomedical Sciences, College of Health and Life Sciences, Hamad Bin Khalifa University, Education City, Qatar Foundation, Doha P.O. Box 34110, Qatar; (M.A.); (A.A.S.)
| | - Srinivasan Madhusudan
- Biodiscovery Institute, School of Medicine, University of Nottingham, University Park, Nottingham NG7 3RD, UK;
| | - Dindial Ramotar
- Division of Biological and Biomedical Sciences, College of Health and Life Sciences, Hamad Bin Khalifa University, Education City, Qatar Foundation, Doha P.O. Box 34110, Qatar; (M.A.); (A.A.S.)
- Correspondence: (R.A.); (D.R.)
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Zhang L, Chen Y, Cheng MY, Zhuang X, Zou J, Wei D, Lin YY, Zhang Y, Wang K. Homologous recombination deficiency predicts the response to platinum-based neoadjuvant chemotherapy in early-stage triple-negative breast cancer patients: a systematic review and meta-analysis. Ther Adv Med Oncol 2022; 14:17588359221096253. [PMID: 35547093 PMCID: PMC9082757 DOI: 10.1177/17588359221096253] [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: 11/03/2021] [Accepted: 04/04/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Recent studies have shown that homologous recombination deficiency (HRD) may be correlated with the pathological complete response (pCR) rate. This meta-analysis aimed to determine the predictive value of HRD for the pCR rate in patients with triple-negative breast cancer (TNBC) receiving platinum-based neoadjuvant chemotherapy (NCT). Methods: Published articles were searched in the PubMed, Embase, Medline, Web of Science, and Cochrane databases up to 1 June 2021, and studies reporting the pCR rate for HRD carriers on platinum-based NCT were selected. Odds ratios (ORs) with 95% confidence intervals (CIs) were determined for the pCR rate, clinical response rate, and Grade 3 or higher adverse events (AEs) using the random-effects model. Bias risk was evaluated using the Cochrane Collaboration tool (PROSPERO, registration number CRD42021249874). Results: Seven studies were eligible. The results showed that HRD carriers had higher pCR rates than non-HRD carriers across all treatment arms (OR = 3.84, 95% CI = [1.93, 7.64], p = 0.0001). Among HRD carriers, the pCR rate was higher in patients on platinum-based NCT than in those without platinum exposure (OR = 1.95, 95% CI = [1.17, 3.23], p = 0.01). We did not observe marked pCR improvements in non-HRD carriers. Among HRD carriers, the pCR rates in the mutant and wild-type breast cancer susceptibility gene (BRCA) groups did not differ significantly (OR = 2.00, 95% CI = [0.77, 5.23], p = 0.16), but HRD carriers with wild-type BRCA had a significant advantage over non-HRD carriers on platinum-based NCT (OR = 3.64, 95% CI = [1.83, 7.21], p = 0.0002). Conclusion: HRD is an effective predictor of increased pCR rates in platinum-based NCT, especially in wild-type BRCA patients. Adding platinum to NCT for non-HRD carriers can increase the incidence of AEs but may not improve the therapeutic effect.
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Affiliation(s)
- Liulu Zhang
- Department of Breast Cancer, Cancer Center, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yuanqi Chen
- Department of Breast Cancer, Cancer Center, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Min-Yi Cheng
- Department of Breast Cancer, Cancer Center, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xiaosheng Zhuang
- Department of Cell and Molecular Biology, School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Jiachen Zou
- Department of Breast Cancer, Cancer Center, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Dannuo Wei
- Department of Social Work & Social Administration, The University of Hong Kong, Pokfulam, Hong Kong
| | - Ying-Yi Lin
- Department of Breast Cancer, Cancer Center, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yi Zhang
- Department of Breast Cancer, Cancer Center, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Kun Wang
- Department of Breast Cancer, Cancer Center, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Yuexiu District, Guangzhou 510080, China
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de Boo LW, Jóźwiak K, Joensuu H, Lindman H, Lauttia S, Opdam M, van Steenis C, Brugman W, Kluin RJC, Schouten PC, Kok M, Nederlof PM, Hauptmann M, Linn SC. Adjuvant capecitabine-containing chemotherapy benefit and homologous recombination deficiency in early-stage triple-negative breast cancer patients. Br J Cancer 2022; 126:1401-1409. [PMID: 35124703 PMCID: PMC9090783 DOI: 10.1038/s41416-022-01711-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 12/16/2021] [Accepted: 01/17/2022] [Indexed: 12/21/2022] Open
Abstract
Background The addition of adjuvant capecitabine to standard chemotherapy of early-stage triple-negative breast cancer (TNBC) patients has improved survival in a few randomised trials and in meta-analyses. However, many patients did not benefit. We evaluated the BRCA1-like DNA copy number signature, indicative of homologous recombination deficiency, as a predictive biomarker for capecitabine benefit in the TNBC subgroup of the FinXX trial. Methods Early-stage TNBC patients were randomised between adjuvant capecitabine-containing (TX + CEX: capecitabine-docetaxel, followed by cyclophosphamide-epirubicin-capecitabine) and conventional chemotherapy (T + CEF: docetaxel, followed by cyclophosphamide-epirubicin-fluorouracil). Tumour BRCA1-like status was determined on low-coverage, whole genome next-generation sequencing data using an established DNA comparative genomic hybridisation algorithm. Results For 129/202 (63.9%) patients the BRCA1-like status could be determined, mostly due to lack of tissue. During a median follow-up of 10.7 years, 35 recurrences and 32 deaths occurred. Addition of capecitabine appears to improve recurrence-free survival more among 61 (47.3%) patients with non-BRCA1-like tumours (HR 0.23, 95% CI 0.08–0.70) compared to 68 (52.7%) patients with BRCA1-like tumours (HR 0.66, 95% CI 0.24–1.81) (P-interaction = 0.17). Conclusion Based on our data, patients with non-BRCA1-like TNBC appear to benefit from the addition of capecitabine to adjuvant chemotherapy. Patients with BRCA1-like TNBC may also benefit. Additional research is needed to define the subgroup within BRCA1-like TNBC patients who may not benefit from adjuvant capecitabine.
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Mondal A, Shanavas S, Sen U, Das U, Roy N, Bose B, Paira P. Mitochondria-targeted half-sandwich iridium( iii)-Cp*-arylimidazophenanthroline complexes as antiproliferative and bioimaging agents against triple negative breast cancer cells MDA-MB-468. RSC Adv 2022; 12:11953-11966. [PMID: 35481100 PMCID: PMC9016803 DOI: 10.1039/d2ra01036d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 03/28/2022] [Indexed: 12/22/2022] Open
Abstract
To reduce the side effects of marketed cancer drugs against triple negative breast cancer cells we have reported mitochondria targeting half-sandwich iridium(iii)-Cp*-arylimidazophenanthroline complexes for MDA-MB-468 cell therapy and diagnosis. Out of five Ir(iii) complexes (IrL1–IrL5), [iridium(iii)-Cp*-2-(naphthalen-1-yl)-1H-imidazo[4,5-f][1,10]phenanthroline]PF6 (IrL1) has exhibited the best cytoselectivity against MDA-MB-468 cells compared to normal HaCaT cells along with excellent binding efficacy with DNA as well as serum albumin. The subcellular localization study of the complex revealed the localization of the compound in cytoplasm thereby pointing to a possible mitochondrial localization and consequent mitochondrial dysfunction via MMP alteration and ROS generation. Moreover, the IrL1 complex facilitated a substantial G1 phase cell-cycle arrest of MDA-MB-468 cells at the highest tested concentration of 5 μM. The study verdicts support the prospective therapeutic potential of the IrL1 complex in the treatment and eradication of triple negative breast cancer cells. These results validate that these types of scaffolds will be fairly able to exert great potential for tumor diagnosis as well as therapy in the near future. Mitochondria targeting half-sandwich Iridium(iii)-Cp*-arylimidazophenanthroline complexes have been developed for MDA-MB-468 cell therapy and diagnosis.![]()
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Affiliation(s)
- Ashaparna Mondal
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamilnadu, India
| | - Shanooja Shanavas
- Department Stem Cells and Regenerative Medicine Centre, Institution Yenepoya Research Centre, Yenepoya University, University Road, Derlakatte, Mangalore 575018, Karnataka, India
| | - Utsav Sen
- Department Stem Cells and Regenerative Medicine Centre, Institution Yenepoya Research Centre, Yenepoya University, University Road, Derlakatte, Mangalore 575018, Karnataka, India
| | - Utpal Das
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamilnadu, India
| | - Nilmadhab Roy
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamilnadu, India
| | - Bipasha Bose
- Department Stem Cells and Regenerative Medicine Centre, Institution Yenepoya Research Centre, Yenepoya University, University Road, Derlakatte, Mangalore 575018, Karnataka, India
| | - Priyankar Paira
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamilnadu, India
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11
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Neoadjuvant Chemotherapy of Triple-Negative Breast Cancer: Evaluation of Early Clinical Response, Pathological Complete Response Rates, and Addition of Platinum Salts Benefit Based on Real-World Evidence. Cancers (Basel) 2021; 13:cancers13071586. [PMID: 33808149 PMCID: PMC8036281 DOI: 10.3390/cancers13071586] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 12/17/2022] Open
Abstract
Simple Summary Neoadjuvant chemotherapy (NACT) is the standard treatment for early-stage triple-negative breast cancer (TNBC). Achieving pathological complete response (pCR) is considered an essential prognostic factor with favorable long-term outcomes. The administration of NACT regimens with platinum salts is associated with a higher pCR rate. However, with unclear treatment guidelines and at the expense of a higher incidence of adverse events. Identifying patients and circumstances in which the benefits of platinum NACT outweigh inconveniences is still an ongoing challenge. Considering early clinical response (ECR) after the initial standard NACT cycles together with other suitable predictors could be useful to decide about the administration of platinum salts in clinical practice. The results of this large single institutional retrospective study of consecutive patients showed the significant role of adding platinum salts in older patients with high-proliferative early responded tumors and persisted lymph nodes involvement regardless of BRCA1/2 status. Abstract Pathological complete response (pCR) achievement is undoubtedly the essential goal of neoadjuvant therapy for breast cancer, directly affecting survival endpoints. This retrospective study of 237 triple-negative breast cancer (TNBC) patients with a median follow-up of 36 months evaluated the role of adding platinum salts into standard neoadjuvant chemotherapy (NACT). After the initial four standard NACT cycles, early clinical response (ECR) was assessed and used to identify tumors and patients generally sensitive to NACT. BRCA1/2 mutation, smaller unifocal tumors, and Ki-67 ≥ 65% were independent predictors of ECR. The total pCR rate was 41%, the achievement of pCR was strongly associated with ECR (OR = 15.1, p < 0.001). According to multivariable analysis, the significant benefit of platinum NACT was observed in early responders ≥45 years, Ki-67 ≥ 65% and persisted lymph node involvement regardless of BRCA1/2 status. Early responders with pCR had a longer time to death (HR = 0.28, p < 0.001) and relapse (HR = 0.26, p < 0.001). The pCR was achieved in only 7% of non-responders. However, platinum salts favored non-responders’ survival outcomes without statistical significance. Toxicity was significantly often observed in patients with platinum NACT (p = 0.003) but not for grade 3/4 (p = 0.155). These results based on real-world evidence point to the usability of ECR in NACT management, especially focusing on the benefit of platinum salts.
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12
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Loibl S, Weber KE, Timms KM, Elkin EP, Hahnen E, Fasching PA, Lederer B, Denkert C, Schneeweiss A, Braun S, Salat CT, Rezai M, Blohmer JU, Zahm DM, Jackisch C, Gerber B, Klare P, Kümmel S, Schem C, Paepke S, Schmutzler R, Rhiem K, Penn S, Reid J, Nekljudova V, Hartman AR, von Minckwitz G, Untch M. Survival analysis of carboplatin added to an anthracycline/taxane-based neoadjuvant chemotherapy and HRD score as predictor of response-final results from GeparSixto. Ann Oncol 2019; 29:2341-2347. [PMID: 30335131 DOI: 10.1093/annonc/mdy460] [Citation(s) in RCA: 155] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background In the neoadjuvant GeparSixto study, adding carboplatin to taxane- and anthracycline-based chemotherapy improved pathological complete response (pCR) rates in patients with triple-negative breast cancer (TNBC). Here, we present survival data and the potential prognostic and predictive role of homologous recombination deficiency (HRD). Patients and methods Patients were randomized to paclitaxel plus nonpegylated liposomal doxorubicin (Myocet®) (PM) or PM plus carboplatin (PMCb). The secondary study end points disease-free survival (DFS) and overall survival (OS) were analyzed. Median follow-up was 47.3 months. HRD was among the exploratory analyses in GeparSixto and was successfully measured in formalin-fixed, paraffin-embedded tumor samples of 193/315 (61.3%) participants with TNBC. Homologous recombination (HR) deficiency was defined as HRD score ≥42 and/or presence of tumor BRCA mutations (tmBRCA). Results A significantly better DFS (hazard ratio 0.56, 95% CI 0.34-0.93; P = 0.022) was observed in patients with TNBC when treated with PMCb. The improvement of OS with PMCb was not statistically significant. Additional carboplatin did not improve DFS or OS in patients with HER2-positive tumors. HR deficiency was detected in 136 (70.5%) of 193 triple-negative tumors, of which 82 (60.3%) showed high HRD score without tmBRCA. HR deficiency independently predicted pCR (ypT0 ypN0) [odds ratio (OR) 2.60, 95% CI 1.26-5.37, P = 0.008]. Adding carboplatin to PM significantly increased the pCR rate from 33.9% to 63.5% in HR deficient tumors (P = 0.001), but only marginally in HR nondeficient tumors (from 20.0% to 29.6%, P = 0.540; test for interaction P = 0.327). pCR rates with carboplatin were also higher (63.2%) than without carboplatin (31.7%; OR 3.69, 1.46-9.37, P = 0.005) in patients with high HRD score but no tmBRCA. DFS rates were improved with addition of carboplatin, both in HR nondeficient (hazard ratio 0.44, 0.17-1.17, P = 0.086) and HR deficient tumors (hazard ratio 0.49, 0.23-1.04, P = 0.059). Conclusions The addition of carboplatin to neoadjuvant PM improved DFS significantly in TNBC. Long-term survival analyses support the neoadjuvant use of carboplatin in TNBC. HR deficiency in TNBC and HRD score in non-tmBRCA TNBC are predictors of response. HRD does not predict for carboplatin benefit.
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Affiliation(s)
- S Loibl
- German Breast Group, Neu-Isenburg, Germany.
| | - K E Weber
- German Breast Group, Neu-Isenburg, Germany
| | - K M Timms
- Myriad Genetics Inc, Salt Lake City, USA
| | - E P Elkin
- The Permanente Medical Group Inc, Oakland, USA
| | - E Hahnen
- Center for Hereditary Breast and Ovarian Cancer, University Hospital Cologne, Cologne, Germany
| | - P A Fasching
- Department of Gynecology and Obstetrics, University Hospital Erlangen, Erlangen, Germany
| | - B Lederer
- German Breast Group, Neu-Isenburg, Germany
| | - C Denkert
- Institute of Pathology, Charité University Hospital and German Cancer Consortium (DKTK), Berlin, Germany
| | - A Schneeweiss
- National Center for Tumor Diseases, University Hospital Heidelberg, Heidelberg, Germany
| | - S Braun
- Brustzentrum, Sana Kliniken Offenbach, Offenbach, Germany
| | - C T Salat
- Hämatoonkologische Schwerpunktpraxis, Munich, Germany
| | - M Rezai
- Luisenkrankenhaus, Düsseldorf, Germany
| | - J U Blohmer
- Klinik für Gynäkologie mit Brustzentrum Charité, Berlin, Germany
| | - D M Zahm
- Brustzentrum SRH Waldklinikum, Gera, Germany
| | - C Jackisch
- Brustzentrum, Sana Kliniken Offenbach, Offenbach, Germany
| | - B Gerber
- Frauenklinik, Universität Rostock, Rostock, Germany
| | - P Klare
- Praxisklinik, Berlin, Germany
| | - S Kümmel
- Breast Unit, Kliniken Essen-Mitte, Essen, Germany
| | - C Schem
- Mammazentrum am Krankenhaus Jerusalem, Hamburg, Germany
| | - S Paepke
- Klinikum rechts der Isar der Technischen Universität München, Frauenklinik, München, Germany
| | - R Schmutzler
- Center for Hereditary Breast and Ovarian Cancer, University Hospital Cologne, Cologne, Germany
| | - K Rhiem
- Center for Hereditary Breast and Ovarian Cancer, University Hospital Cologne, Cologne, Germany
| | - S Penn
- Myriad Genetics Inc, Salt Lake City, USA
| | - J Reid
- Myriad Genetics Inc, Salt Lake City, USA
| | | | | | | | - M Untch
- Helios-Klinikum Berlin-Buch, Berlin, Germany
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A Humanized Yeast Phenomic Model of Deoxycytidine Kinase to Predict Genetic Buffering of Nucleoside Analog Cytotoxicity. Genes (Basel) 2019; 10:genes10100770. [PMID: 31575041 PMCID: PMC6826991 DOI: 10.3390/genes10100770] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 09/17/2019] [Accepted: 09/23/2019] [Indexed: 12/22/2022] Open
Abstract
Knowledge about synthetic lethality can be applied to enhance the efficacy of anticancer therapies in individual patients harboring genetic alterations in their cancer that specifically render it vulnerable. We investigated the potential for high-resolution phenomic analysis in yeast to predict such genetic vulnerabilities by systematic, comprehensive, and quantitative assessment of drug–gene interaction for gemcitabine and cytarabine, substrates of deoxycytidine kinase that have similar molecular structures yet distinct antitumor efficacy. Human deoxycytidine kinase (dCK) was conditionally expressed in the Saccharomyces cerevisiae genomic library of knockout and knockdown (YKO/KD) strains, to globally and quantitatively characterize differential drug–gene interaction for gemcitabine and cytarabine. Pathway enrichment analysis revealed that autophagy, histone modification, chromatin remodeling, and apoptosis-related processes influence gemcitabine specifically, while drug–gene interaction specific to cytarabine was less enriched in gene ontology. Processes having influence over both drugs were DNA repair and integrity checkpoints and vesicle transport and fusion. Non-gene ontology (GO)-enriched genes were also informative. Yeast phenomic and cancer cell line pharmacogenomics data were integrated to identify yeast–human homologs with correlated differential gene expression and drug efficacy, thus providing a unique resource to predict whether differential gene expression observed in cancer genetic profiles are causal in tumor-specific responses to cytotoxic agents.
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Xiao YS, Zeng D, Liang YK, Wu Y, Li MF, Qi YZ, Wei XL, Huang WH, Chen M, Zhang GJ. Major vault protein is a direct target of Notch1 signaling and contributes to chemoresistance in triple-negative breast cancer cells. Cancer Lett 2019; 440-441:156-167. [PMID: 30336197 DOI: 10.1016/j.canlet.2018.09.031] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 09/12/2018] [Accepted: 09/30/2018] [Indexed: 02/05/2023]
Abstract
Resistance to chemotherapy remains a significant problem in the treatment of breast cancer, especially for triple-negative breast cancer (TNBC), in which standard systemic therapy is currently limited to chemotherapeutic agents. Our study aimed to better understand the molecular mechanisms that lead to failure of chemotherapy in TNBC. Herein, we observed elevated expression of Notch1 and major vault protein (MVP) in MDA-MB-231DDPR cells compared to their parental counterparts. We demonstrated that Notch1 could positively regulate the expression of MVP. Also, Notch1 intracellular domain (ICD) was capable of binding to CBF-1 on the promoter of MVP to drive its transcription, resulting in activation of AKT pathway and promoting the progress of epithelial to mesenchymal transition (EMT). Conversely, silencing of Notch1 and MVP suppressed AKT pathway, reduced EMT and enhanced the sensitivity of TNBC cells to cisplatin and doxorubicin. Survival analysis indicated that the MVP was closely related to shorter recurrence-free survival (RFS) in patients with TNBC. Collectively, this study provides evidence that Notch1 activates AKT pathway and promotes EMT partly through direct activation of MVP. Targeting Notch1/MVP pathway appears to have potential in overcoming chemoresistance in TNBC.
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Affiliation(s)
- Ying-Sheng Xiao
- ChangJiang Scholar's Laboratory of Shantou University Medical College, 22 Xinling Road, Shantou, China; The Breast Center, Cancer Hospital of Shantou University Medical College, 7 Raoping Road, Shantou, China
| | - De Zeng
- Department of Medical Oncology, Cancer Hospital of Shantou University Medical College, 7 Raoping Road, Shantou, China
| | - Yuan-Ke Liang
- ChangJiang Scholar's Laboratory of Shantou University Medical College, 22 Xinling Road, Shantou, China; The Breast Center, Cancer Hospital of Shantou University Medical College, 7 Raoping Road, Shantou, China; Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713, GZ Groningen, the Netherlands
| | - Yang Wu
- ChangJiang Scholar's Laboratory of Shantou University Medical College, 22 Xinling Road, Shantou, China; The Breast Center, Cancer Hospital of Shantou University Medical College, 7 Raoping Road, Shantou, China
| | - Mei-Fang Li
- ChangJiang Scholar's Laboratory of Shantou University Medical College, 22 Xinling Road, Shantou, China; The Breast Center, Cancer Hospital of Shantou University Medical College, 7 Raoping Road, Shantou, China
| | - Yu-Zhu Qi
- ChangJiang Scholar's Laboratory of Shantou University Medical College, 22 Xinling Road, Shantou, China; The Breast Center, Cancer Hospital of Shantou University Medical College, 7 Raoping Road, Shantou, China
| | - Xiao-Long Wei
- Department of Pathology, Cancer Hospital of Shantou University Medical College, 7 Raoping Road, Shantou, China
| | - Wen-He Huang
- The Cancer Center and the Department of Breast-Thyroid Surgery, Xiang'an Hospital of Xiamen University, 2000 East Xiang'an Rd., Xiang'an, Xiamen, China; The Breast Center, Cancer Hospital of Shantou University Medical College, 7 Raoping Road, Shantou, China
| | - Min Chen
- Central Laboratory, Xiang'an Hospital of Xiamen University, 2000 East Xiang'an Rd., Xiang'an, Xiamen, China
| | - Guo-Jun Zhang
- The Cancer Center and the Department of Breast-Thyroid Surgery, Xiang'an Hospital of Xiamen University, 2000 East Xiang'an Rd., Xiang'an, Xiamen, China; ChangJiang Scholar's Laboratory of Shantou University Medical College, 22 Xinling Road, Shantou, China; The Breast Center, Cancer Hospital of Shantou University Medical College, 7 Raoping Road, Shantou, China.
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Wang Z, Xu L, Wang H, Li Z, Lu L, Li X, Zhang Q. Lobaplatin-based regimens outperform cisplatin for metastatic breast cancer after anthracyclines and taxanes treatment. Saudi J Biol Sci 2018; 25:909-916. [PMID: 30108440 PMCID: PMC6087814 DOI: 10.1016/j.sjbs.2018.01.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 01/14/2018] [Accepted: 01/15/2018] [Indexed: 12/21/2022] Open
Abstract
The goal of this study was to assess the antitumor efficacy and safety of lobaplatin-based regimens as the second line of treatment in patients with metastatic breast cancer (MBC) resistant to anthracyclines and taxanes, compared with that of cisplatin-based regimens. During August 2012 to April 2015, 87 patients who received lobaplatin-based regimens or cisplatin-based regimens were included. Medical records of the patients noted that lobaplatin (30 mg/m2) or cisplatin (25 mg/m2), combined with another chemotherapeutic agent such as Gemcitabine (1000 mg/m2) or Vinorelbine (25 mg/m2), was intravenously given to the patients on a basis of twenty-one days as one treatment cycle. All the patients were followed until August 2017. The endpoint of this study was progression-free survival (PFS), overall survival (OS), and estimated objective response rate (RR). Safety and drug tolerability data were also obtained. Lobaplatin-based regimens prolonged PFS compared to cisplatin-based regimens (median 13.2 vs 4.7 months, hazard ratio = 0.37, 95% confidence intervals: 0.21-0.67, P = .0007), while OS was not significantly different between the two groups (hazard ratio = 0.72, 95% confidence intervals: 0.40-1.30, P = .2767), as was objective RR (37.8% vs 33.4%, x 2 = 0.19, P = .6653). Nausea/vomiting and renal injury were more frequent with cisplatin-based regimens. Our results show that lobaplatin-based regimens are superior to cisplatin in terms of efficacy and are better tolerated.
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Key Words
- Breast cancer
- Cisplatin
- Eastern Cooperative Oncology Group, ECOG
- Lobaplatin
- Metastatic
- National Cancer Institute Common Toxicity Criteria for Adverse Events, NCI-CTCAE
- Resistant
- Response Evaluation Criteria in Solid Tumors, RECIST
- cisplatin and gemcitabine, GP
- cisplatin and vinorelbine, NP
- complete response, CR
- confidence interval, CI
- estrogen receptor, ER
- granulocyte-colony stimulating factor, G-CSF
- hazard ratio, HR
- human epidermal growth factor receptor 2, HER-2
- lobaplatin and gemcitabine, GL
- lobaplatin and vinorelbine, NL
- lymph nodes, LN
- metastatic breast cancer, MBC
- non-small-cell lung cancer, NSCLC
- overall survival, OS
- partial response, PR
- performance scale, PS
- platinum-based compounds, PBCs
- progesterone receptor, PR
- progression-free survival, PFS
- progressive disease, PD
- response rate, RR
- stable disease, SD
- standard error, SE
- time to progression, TTP
- triple negative breast cancer, TNBC
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Affiliation(s)
- Zhipeng Wang
- Department of Medical Oncology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Lei Xu
- Genetics Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Han Wang
- Department of Maternal and Child Health, School of Public Health, Peking University, Beijing 100191, China
| | - Zhenzhi Li
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, DC 20057, USA
| | - Lu Lu
- Department of Medical Oncology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Xiaojia Li
- Department of Medical Oncology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Qingyuan Zhang
- Department of Medical Oncology, Tumor Hospital of Harbin Medical University, Harbin 150081, China
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Miao L, Yu Y, Ji Y, Zhang B, Yuan Z, Du Y, Zhu L, Wang R, Chen N, Yuan H. Association between BRCA1 P871L polymorphism and cancer risk: evidence from a meta-analysis. Oncotarget 2017; 8:30587-30594. [PMID: 28427168 PMCID: PMC5444767 DOI: 10.18632/oncotarget.15739] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 02/13/2017] [Indexed: 01/23/2023] Open
Abstract
Breast cancer 1 (BRCA1) gene makes great contributions to the repair of DNA. The association between BRCA1 P871L polymorphism and cancer risk has been investigated in a growing number of studies, but the conclusions are not conclusive. To obtain a comprehensive conclusion, we performed a meta-analysis of 24 studies with 13762 cases and 22388 controls. The pooled results indicated that BRCA1 gene P871L variant decreased risk of overall cancer (homozygous model: odds ratio (OR) = 0.89, 95%confidence interval (CI) = 0.79-1.00; recessive model: OR = 0.89, 95% CI = 0.80-0.99). The stratified analysis observed decreased risk associated with BRCA1 P871L in subgroups among Asians and high score studies, but not Caucasians or low score studies. In conclusion, despite several limitations, this meta-analysis suggested that BRCA1 P871L genetic variation may be associated with decreased susceptibility to cancer.
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Affiliation(s)
- Limin Miao
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Yang Yu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Yefeng Ji
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Bo Zhang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Zhiyao Yuan
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Yifei Du
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Longbiao Zhu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Ruixia Wang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Ning Chen
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Hua Yuan
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
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Zimmermann M, Wang SS, Zhang H, Lin TY, Malfatti M, Haack K, Ognibene T, Yang H, Airhart S, Turteltaub KW, Cimino GD, Tepper CG, Drakaki A, Chamie K, de Vere White R, Pan CX, Henderson PT. Microdose-Induced Drug-DNA Adducts as Biomarkers of Chemotherapy Resistance in Humans and Mice. Mol Cancer Ther 2016; 16:376-387. [PMID: 27903751 DOI: 10.1158/1535-7163.mct-16-0381] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 10/05/2016] [Accepted: 11/02/2016] [Indexed: 12/15/2022]
Abstract
We report progress on predicting tumor response to platinum-based chemotherapy with a novel mass spectrometry approach. Fourteen bladder cancer patients were administered one diagnostic microdose each of [14C]carboplatin (1% of the therapeutic dose). Carboplatin-DNA adducts were quantified by accelerator mass spectrometry in blood and tumor samples collected within 24 hours, and compared with subsequent chemotherapy response. Patients with the highest adduct levels were responders, but not all responders had high adduct levels. Four patient-derived bladder cancer xenograft mouse models were used to test the possibility that another drug in the regimen could cause a response. The mice were dosed with [14C]carboplatin or [14C]gemcitabine and the resulting drug-DNA adduct levels were compared with tumor response to chemotherapy. At least one of the drugs had to induce high drug-DNA adduct levels or create a synergistic increase in overall adducts to prompt a corresponding therapeutic response, demonstrating proof-of-principle for drug-DNA adducts as predictive biomarkers. Mol Cancer Ther; 16(2); 376-87. ©2016 AACR.
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Affiliation(s)
- Maike Zimmermann
- Department of Internal Medicine, Division of Hematology and Oncology and UC Davis Comprehensive Cancer Center, University of California Davis, Sacramento, California.,Accelerated Medical Diagnostics Incorporated, Berkeley, California
| | - Si-Si Wang
- Department of Internal Medicine, Division of Hematology and Oncology and UC Davis Comprehensive Cancer Center, University of California Davis, Sacramento, California
| | - Hongyong Zhang
- Department of Internal Medicine, Division of Hematology and Oncology and UC Davis Comprehensive Cancer Center, University of California Davis, Sacramento, California
| | - Tzu-Yin Lin
- Department of Internal Medicine, Division of Hematology and Oncology and UC Davis Comprehensive Cancer Center, University of California Davis, Sacramento, California
| | | | - Kurt Haack
- Lawrence Livermore National Laboratory, Livermore, California
| | - Ted Ognibene
- Lawrence Livermore National Laboratory, Livermore, California
| | | | | | | | - George D Cimino
- Accelerated Medical Diagnostics Incorporated, Berkeley, California
| | - Clifford G Tepper
- Department of Biochemistry and Molecular Medicine, UC Davis School of Medicine, California
| | - Alexandra Drakaki
- Division of Hematology and Oncology, UCLA Medical Center, Los Angeles, California
| | - Karim Chamie
- Department of Urology, UCLA Medical Center, Los Angeles, California
| | - Ralph de Vere White
- Department of Urology, University of California Davis, Sacramento, California
| | - Chong-Xian Pan
- Department of Internal Medicine, Division of Hematology and Oncology and UC Davis Comprehensive Cancer Center, University of California Davis, Sacramento, California. .,Department of Urology, University of California Davis, Sacramento, California.,VA Northern California Health Care System, Mather, California
| | - Paul T Henderson
- Department of Internal Medicine, Division of Hematology and Oncology and UC Davis Comprehensive Cancer Center, University of California Davis, Sacramento, California. .,Accelerated Medical Diagnostics Incorporated, Berkeley, California
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Ter Brugge P, Kristel P, van der Burg E, Boon U, de Maaker M, Lips E, Mulder L, de Ruiter J, Moutinho C, Gevensleben H, Marangoni E, Majewski I, Józwiak K, Kloosterman W, van Roosmalen M, Duran K, Hogervorst F, Turner N, Esteller M, Cuppen E, Wesseling J, Jonkers J. Mechanisms of Therapy Resistance in Patient-Derived Xenograft Models of BRCA1-Deficient Breast Cancer. J Natl Cancer Inst 2016; 108:djw148. [PMID: 27381626 DOI: 10.1093/jnci/djw148] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 05/12/2016] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Although BRCA1-deficient tumors are extremely sensitive to DNA-damaging drugs and poly(ADP-ribose) polymerase (PARP) inhibitors, recurrences do occur and, consequently, resistance to therapy remains a serious clinical problem. To study the underlying mechanisms, we induced therapy resistance in patient-derived xenograft (PDX) models of BRCA1-mutated and BRCA1-methylated triple-negative breast cancer. METHODS A cohort of 75 mice carrying BRCA1-deficient breast PDX tumors was treated with cisplatin, melphalan, nimustine, or olaparib, and treatment sensitivity was determined. In tumors that acquired therapy resistance, BRCA1 expression was investigated using quantitative real-time polymerase chain reaction and immunoblotting. Next-generation sequencing, methylation-specific multiplex ligation-dependent probe amplification (MLPA) and Target Locus Amplification (TLA)-based sequencing were used to determine mechanisms of BRCA1 re-expression in therapy-resistant tumors. RESULTS BRCA1 protein was not detected in therapy-sensitive tumors but was found in 31 out of 42 resistant cases. Apart from previously described mechanisms involving BRCA1-intragenic deletions and loss of BRCA1 promoter hypermethylation, a novel resistance mechanism was identified in four out of seven BRCA1-methylated PDX tumors that re-expressed BRCA1 but retained BRCA1 promoter hypermethylation. In these tumors, we found de novo gene fusions that placed BRCA1 under the transcriptional control of a heterologous promoter, resulting in re-expression of BRCA1 and acquisition of therapy resistance. CONCLUSIONS In addition to previously described clinically relevant resistance mechanisms in BRCA1-deficient tumors, we describe a novel resistance mechanism in BRCA1-methylated PDX tumors involving de novo rearrangements at the BRCA1 locus, demonstrating that BRCA1-methylated breast cancers may acquire therapy resistance via both epigenetic and genetic mechanisms.
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Affiliation(s)
- Petra Ter Brugge
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Petra Kristel
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Eline van der Burg
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Ute Boon
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Michiel de Maaker
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Esther Lips
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Lennart Mulder
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Julian de Ruiter
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Catia Moutinho
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Heidrun Gevensleben
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Elisabetta Marangoni
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Ian Majewski
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Katarzyna Józwiak
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Wigard Kloosterman
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Markus van Roosmalen
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Karen Duran
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Frans Hogervorst
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Nick Turner
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Manel Esteller
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Edwin Cuppen
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Jelle Wesseling
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
| | - Jos Jonkers
- Affiliations of authors: Division of Molecular Pathology and Cancer Genomics Centre Netherlands (PtB, PK, EvdB, UB, MdM, EL, LM, JdR, JW, JJ), Division of Molecular Carcinogenesis (IM), Department of Epidemiology and Biostatistics (KJ), and Family Cancer Clinic and Department of Pathology (FH), The Netherlands Cancer Institute, Amsterdam, the Netherlands; Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Catalonia, Spain (CM, ME); The Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London, UK (HG, NT); Laboratory of Preclinical Investigation, Translational Research Department, Curie Institute, Paris, France (EM); Department of Medical Genetics, University Medical Center Utrecht, Utrecht, the Netherlands (WK, MvR, KD, EC); Department of Physiological Sciences II, School of Medicine, University of Barcelona, Barcelona, Catalonia, Spain (ME); Institucio Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain (ME)
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Alli E, Ford JM. BRCA1: a movement toward cancer prevention. Mol Cell Oncol 2016; 2:e979685. [PMID: 27308455 PMCID: PMC4905290 DOI: 10.4161/23723556.2014.979685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 10/17/2014] [Accepted: 10/18/2014] [Indexed: 11/19/2022]
Abstract
Breast cancer susceptibility gene 1 (BRCA1) was first identified in 1994 and has since been shown to encode a tumor suppressor protein that maintains genetic stability through DNA damage response pathways. Carriers of mutations in BRCA1 are predisposed to breast and ovarian cancer; however, their cancers lack the targets for existing anticancer drugs. We describe a novel chemoprevention approach that uses DNA repair-activating agents to enhance the repair of oxidative DNA damage and, in turn, prevent tumorigenesis in the presence of mutant BRCA1.
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Affiliation(s)
- Elizabeth Alli
- Stanford University School of Medicine; Department of Medicine-Oncology ; Stanford, CA USA
| | - James M Ford
- Stanford University School of Medicine; Department of Medicine-Oncology ; Stanford, CA USA
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Nakashima S, Kobayashi S, Nagano H, Tomokuni A, Tomimaru Y, Asaoka T, Hama N, Wada H, Kawamoto K, Marubashi S, Eguchi H, Doki Y, Mori M. BRCA/Fanconi anemia pathway implicates chemoresistance to gemcitabine in biliary tract cancer. Cancer Sci 2015; 106:584-91. [PMID: 25736055 PMCID: PMC4452159 DOI: 10.1111/cas.12652] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 02/11/2015] [Accepted: 02/27/2015] [Indexed: 12/19/2022] Open
Abstract
The BRCA/Fanconi anemia (FA) pathway plays a key role in the repair of DNA double strand breaks. We focused on this pathway to clarify chemoresistance mechanisms in biliary tract cancer (BTC). We also investigated changes in the CD24+/44+ population that may be involved in chemoresistance, as this population likely includes cancer stem cells. We used three BTC cell lines to establish gemcitabine (GEM)-resistant (GR) cells and evaluated the expression of BRCA/FA pathway components, chemoresistance, and the effect of BRCA/FA pathway inhibition on the CD24+/44+ population. FANCD2 and CD24 expression were evaluated in 108 resected BTC specimens. GR cells highly expressed the BRCA/FA components. The BRCA/FA pathway was upregulated by GEM and cisplatin (CDDP) exposure. Inhibition using siRNA and RAD51 inhibitor sensitized GR cells to GEM or CDDP. The CD24+/44+ population was increased in GR and parent BTC cells treated with GEM or CDDP and highly expressed BRCA/FA genes. FANCD2 was related to CD24 expression in resected BTC specimens. Inhibition of the BRCA/FA pathway under GEM reduced the CD24+/44+ population in MzChA1-GR cells. Thus, high expression of the BRCA/FA pathway is one mechanism of chemoresistance against GEM and/or CDDP and is related to the CD24+/44+ population in BTC.
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Affiliation(s)
- Shinsuke Nakashima
- Department of Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Shogo Kobayashi
- Department of Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan.,Department of Surgery, Osaka Medical Center for Cancer and Cardio-Vascular Diseases, Osaka, Japan
| | - Hiroaki Nagano
- Department of Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Akira Tomokuni
- Department of Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yoshito Tomimaru
- Department of Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Tadafumi Asaoka
- Department of Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Naoki Hama
- Department of Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Hiroshi Wada
- Department of Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Koichi Kawamoto
- Department of Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Shigeru Marubashi
- Department of Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Hidetoshi Eguchi
- Department of Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yuichiro Doki
- Department of Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Masaki Mori
- Department of Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
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Telli ML, Jensen KC, Vinayak S, Kurian AW, Lipson JA, Flaherty PJ, Timms K, Abkevich V, Schackmann EA, Wapnir IL, Carlson RW, Chang PJ, Sparano JA, Head B, Goldstein LJ, Haley B, Dakhil SR, Reid JE, Hartman AR, Manola J, Ford JM. Phase II Study of Gemcitabine, Carboplatin, and Iniparib As Neoadjuvant Therapy for Triple-Negative and BRCA1/2 Mutation-Associated Breast Cancer With Assessment of a Tumor-Based Measure of Genomic Instability: PrECOG 0105. J Clin Oncol 2015; 33:1895-901. [PMID: 25847929 DOI: 10.1200/jco.2014.57.0085] [Citation(s) in RCA: 176] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
PURPOSE This study was designed to assess efficacy, safety, and predictors of response to iniparib in combination with gemcitabine and carboplatin in early-stage triple-negative and BRCA1/2 mutation-associated breast cancer. PATIENTS AND METHODS This single-arm phase II study enrolled patients with stage I to IIIA (T ≥ 1 cm) estrogen receptor-negative (≤ 5%), progesterone receptor-negative (≤ 5%), and human epidermal growth factor receptor 2-negative or BRCA1/2 mutation-associated breast cancer. Neoadjuvant gemcitabine (1,000 mg/m(2) intravenously [IV] on days 1 and 8), carboplatin (area under curve of 2 IV on days 1 and 8), and iniparib (5.6 mg/kg IV on days 1, 4, 8, and 11) were administered every 21 days for four cycles, until the protocol was amended to six cycles. The primary end point was pathologic complete response (no invasive carcinoma in breast or axilla). All patients underwent comprehensive BRCA1/2 genotyping, and homologous recombination deficiency was assessed by loss of heterozygosity (HRD-LOH) in pretreatment core breast biopsies. RESULTS Among 80 patients, median age was 48 years; 19 patients (24%) had germline BRCA1 or BRCA2 mutations; clinical stage was I (13%), IIA (36%), IIB (36%), and IIIA (15%). Overall pathologic complete response rate in the intent-to-treat population (n = 80) was 36% (90% CI, 27 to 46). Mean HRD-LOH scores were higher in responders compared with nonresponders (P = .02) and remained significant when BRCA1/2 germline mutations carriers were excluded (P = .021). CONCLUSION Preoperative combination of gemcitabine, carboplatin, and iniparib is active in the treatment of early-stage triple-negative and BRCA1/2 mutation-associated breast cancer. The HRD-LOH assay was able to identify patients with sporadic triple-negative breast cancer lacking a BRCA1/2 mutation, but with an elevated HRD-LOH score, who achieved a favorable pathologic response. Confirmatory controlled trials are warranted.
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Affiliation(s)
- Melinda L Telli
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA.
| | - Kristin C Jensen
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Shaveta Vinayak
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Allison W Kurian
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Jafi A Lipson
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Patrick J Flaherty
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Kirsten Timms
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Victor Abkevich
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Elizabeth A Schackmann
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Irene L Wapnir
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Robert W Carlson
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Pei-Jen Chang
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Joseph A Sparano
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Bobbie Head
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Lori J Goldstein
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Barbara Haley
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Shaker R Dakhil
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Julia E Reid
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Anne-Renee Hartman
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - Judith Manola
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
| | - James M Ford
- Melinda L. Telli, Kristin C. Jensen, Shaveta Vinayak, Allison W. Kurian, Jafi A. Lipson, Patrick J. Flaherty, Elizabeth A. Schackmann, Irene L. Wapnir, Robert W. Carlson, Pei-Jen Chang, and James M. Ford, Stanford University School of Medicine, Stanford; Bobbie Head, Marin Specialty Care, Greenbrae, CA; Kirsten Timms, Victor Abkevich, Julia E. Reid, and Anne-Renee Hartman, Myriad Genetics, Salt Lake City, UT; Joseph A. Sparano, Albert Einstein College of Medicine, New York, NY; Lori J. Goldstein, Fox Chase Cancer Center, Philadelphia, PA; Barbara Haley, University of Texas Southwestern Medical Center, Dallas, TX; Shaker R. Dakhil, Cancer Center of Kansas, Wichita, KS; and Judith Manola, Dana-Farber Cancer Institute, Boston, MA
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Chen MC, Zhou B, Zhang K, Yuan YC, Un F, Hu S, Chou CM, Chen CH, Wu J, Wang Y, Liu X, Smith DL, Li H, Liu Z, Warden CD, Su L, Malkas LH, Chung YM, Hu MCT, Yen Y. The Novel Ribonucleotide Reductase Inhibitor COH29 Inhibits DNA Repair In Vitro. Mol Pharmacol 2015; 87:996-1005. [PMID: 25814515 DOI: 10.1124/mol.114.094987] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 03/26/2015] [Indexed: 01/07/2023] Open
Abstract
COH29 [N-(4-(3,4-dihydroxyphenyl)-5-phenylthiazol-2-yl)-3,4-dihydroxybenzamide], a novel antimetabolite drug developed at City of Hope Cancer Center, has anticancer activity that stems primarily from the inhibition of human ribonucleotide reductase (RNR). This key enzyme in deoxyribonucleotide biosynthesis is the target of established clinical agents such as hydroxyurea and gemcitabine because of its critical role in DNA replication and repair. Herein we report that BRCA-1-defective human breast cancer cells are more sensitive than wild-type BRCA-1 counterparts to COH29 in vitro and in vivo. Microarray gene expression profiling showed that COH29 reduces the expression of DNA repair pathway genes, suggesting that COH29 interferes with these pathways. It is well established that BRCA1 plays a role in DNA damage repair, especially homologous recombination (HR) repair, to maintain genome integrity. In BRCA1-defective HCC1937 breast cancer cells, COH29 induced more double-strand breaks (DSBs) and DNA-damage response than in HCC1937 + BRCA1 cells. By EJ5- and DR-green fluorescent protein (GFP) reporter assay, we found that COH29 could inhibit nonhomologous end joining (NHEJ) efficiency and that no HR activity was detected in HCC1937 cells, suggesting that repression of the NHEJ repair pathway may be involved in COH29-induced DSBs in BRCA1-deficient HCC1937 cells. Furthermore, we observed an accumulation of nuclear Rad51 foci in COH29-treated HCC1937 + BRCA1 cells, suggesting that BRCA1 plays a crucial role in repairing and recovering drug-induced DNA damage by recruiting Rad51 to damage sites. In summary, we describe here additional biologic effects of the RNR inhibitor COH29 that potentially strengthen its use as an anticancer agent.
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Affiliation(s)
- Mei-Chuan Chen
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Bingsen Zhou
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Keqiang Zhang
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Yate-Ching Yuan
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Frank Un
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Shuya Hu
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Chih-Ming Chou
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Chun-Han Chen
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Jun Wu
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Yan Wang
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Xiyong Liu
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - D Lynne Smith
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Hongzhi Li
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Zheng Liu
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Charles D Warden
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Leila Su
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Linda H Malkas
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Young Min Chung
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Mickey C-T Hu
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
| | - Yun Yen
- Departments of Molecular Pharmacology (B.Z., K.Z., F.U., S.H., X.L., D.L.S., Y.Y.), Molecular Medicine (Y.-C.Y., H.L., Z.L., C.D.W., L.S.), Molecular and Cellular Biology (L.H.M.), and Division of Comparative Medicine (J.W., Y.W.), City of Hope National Medical Center, Duarte, California; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology Stanford University School of Medicine, Stanford, California; (Y.M.C., M.C.-T.H.); Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy (M.-C.C.), and Graduate Institute of Pharmacognosy, College of Pharmacy, (M.-C.C), Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology (C.-H.C., Y.Y.), and Department of Biochemistry, School of Medicine, College of Medicine (C.-M.C.), Taipei Medical University, Taipei, Taiwan
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Wang H, Lu C, Li Q, Xie J, Chen T, Tan Y, Wu C, Jiang J. The role of Kif4A in doxorubicin-induced apoptosis in breast cancer cells. Mol Cells 2014; 37:812-8. [PMID: 25377255 PMCID: PMC4255101 DOI: 10.14348/molcells.2014.0210] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 09/04/2014] [Accepted: 09/05/2014] [Indexed: 12/18/2022] Open
Abstract
This study was to investigate the mechanism and role of Kif4A in doxorubicin-induced apoptosis in breast cancer. Using two human breast cancer cell lines MCF-7 (with wild-type p53) and MDA-MB-231 (with mutant p53), we quantitated the expression levels of kinesin super-family protein 4A (Kif4A) and poly (ADP-ribose) Polymerase-1 (PARP-1) by Western blot after doxorubicin treatment and examined the apoptosis by flow cytometry after treatment with doxorubicin and PARP-1 inhibitor, 3-Aminobenzamide (3-ABA). Our results showed that doxorubicin treatment could induce the apoptosis of MCF-7 and MDA-MB-231 cells, the down-regulation of Kif4A and upregulation of poly(ADP-ribose) (PAR). The activity of PARP-1 or PARP-1 activation was significantly elevated by doxorubicin treatment in dose- and time-dependent manners (P < 0.05), while doxorubicin treatment only slightly elevated the level of cleaved fragments of PARP-1 (P > 0.05). We further demonstrated that overexpression of Kif4A could reduce the level of PAR and significantly increase apoptosis. The effect of doxorubicin on apoptosis was more profound in MCF-7 cells compared with MDA-MB-231 cells (P < 0.05). Taken together, our results suggest that the novel role of Kif4A in doxorubicin-induced apoptosis in breast cancer cells is achieved by inhibiting the activity of PARP-1.
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Affiliation(s)
- Hui Wang
- Department of Pathology, The Third Affiliated Hospital of Soochow University, Changzhou 213003,
P.R. China
| | - Changqing Lu
- Department of Pathology, The Third Affiliated Hospital of Soochow University, Changzhou 213003,
P.R. China
| | - Qing Li
- Department of Pathology, The Third Affiliated Hospital of Soochow University, Changzhou 213003,
P.R. China
| | - Jun Xie
- Department of Pathology, The Third Affiliated Hospital of Soochow University, Changzhou 213003,
P.R. China
| | - Tongbing Chen
- Department of Pathology, The Third Affiliated Hospital of Soochow University, Changzhou 213003,
P.R. China
| | - Yan Tan
- Department of Pathology, The Third Affiliated Hospital of Soochow University, Changzhou 213003,
P.R. China
| | - Changping Wu
- Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou 213003,
P.R. China
| | - Jingting Jiang
- Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou 213003,
P.R. China
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25
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Tan X, Peng J, Fu Y, An S, Rezaei K, Tabbara S, Teal CB, Man YG, Brem RF, Fu SW. miR-638 mediated regulation of BRCA1 affects DNA repair and sensitivity to UV and cisplatin in triple-negative breast cancer. Breast Cancer Res 2014; 16:435. [PMID: 25228385 PMCID: PMC4303116 DOI: 10.1186/s13058-014-0435-5] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 08/28/2014] [Indexed: 12/22/2022] Open
Abstract
Introduction Triple-negative breast cancer (TNBC) represents 15 to 20% of all types of breast cancer; however, it accounts for a large number of metastatic cases and deaths, and there is still no effective treatment. The deregulation of microRNAs (miRNAs) in breast cancer has been widely reported. We previously identified that miR-638 was one of the most deregulated miRNAs in breast cancer progression. Bioinformatics analysis revealed that miR-638 directly targets BRCA1. The aim of this study was to investigate the role of miR-638 in breast cancer prognosis and treatment. Methods Formalin-fixed, paraffin-embedded (FFPE) breast cancer samples were microdissected into normal epithelial and invasive ductal carcinoma (IDC) cells, and total RNA was isolated. Several breast cancer cell lines were used for the functional analysis. miR-638 target genes were identified by TARGETSCAN-VERT 6.2 and miRanda. The expression of miR-638 and its target genes was analyzed by real-time qRT-PCR and Western blotting. Dual-luciferase reporter assay was employed to confirm the specificity of miR-638 target genes. The biological function of miR-638 was analyzed by MTT chemosensitivity, matrigel invasion and host cell reactivation assays. Results The expression of miR-638 was decreased in IDC tissue samples compared to their adjacent normal controls. The decreased miR-638 expression was more prevalent in non-TNBC compared with TNBC cases. miR-638 expression was significantly downregulated in breast cancer cell lines compared to the immortalized MCF-10A epithelial cells. BRCA1 was predicted as one of the direct targets of miR-638, which was subsequently confirmed by dual-luciferase reporter assay. Forced expression of miR-638 resulted in a significantly reduced proliferation rate as well as decreased invasive ability in TNBC cells. Furthermore, miR-638 overexpression increased sensitivity to DNA-damaging agents, ultraviolet (UV) and cisplatin, but not to 5-fluorouracil (5-FU) and epirubicin exposure in TNBC cells. Host cell reactivation assays showed that miR-638 reduced DNA repair capability in post UV/cisplatin-exposed TNBC cells. The reduced proliferation, invasive ability, and DNA repair capabilities are associated with downregulated BRCA1 expression. Conclusions Our findings suggest that miR-638 plays an important role in TNBC progression via BRCA1 deregulation. Therefore, miR-638 might serve as a potential prognostic biomarker and therapeutic target for breast cancer. Electronic supplementary material The online version of this article (doi:10.1186/s13058-014-0435-5) contains supplementary material, which is available to authorized users.
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Alli E, Solow-Cordero D, Casey SC, Ford JM. Therapeutic targeting of BRCA1-mutated breast cancers with agents that activate DNA repair. Cancer Res 2014; 74:6205-15. [PMID: 25217519 DOI: 10.1158/0008-5472.can-14-1716] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Cancers due to germline mutations in the BRCA1 gene tend to lack targets for approved chemoprevention agents. This study aimed at a targeted chemoprevention strategy for BRCA1-associated malignancies. Mutant BRCA1 limits the base-excision DNA repair activity that addresses oxidative DNA damage, the accumulation of which heightens one's risk for cancer. Therefore, we conducted a high-throughput chemical screen to identify drug candidates that could attenuate the inhibitory effects of mutant BRCA1 on this repair activity, thereby describing a new class of DNA repair-activating chemopreventive agents. In the screen design, such drugs functioned by enhancing base-excision DNA repair of oxidative DNA damage in the presence of mutant BRCA1, with minimal cytotoxicity. We identified at least one new agent that decreased malignant properties associated with tumorigenesis, including anchorage-independent growth and tumor progression. This work offers a preclinical proof-of-concept for a wholly new approach to chemoprevention in carriers of BRCA1 mutations as a strategy to reduce the prevalence of BRCA1-associated malignancy.
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Affiliation(s)
- Elizabeth Alli
- Department of Medicine/Oncology, Stanford University School of Medicine, Stanford, California
| | - David Solow-Cordero
- Department of Chemical and Systems Biology and Stanford High-Throughput Bioscience Center, Stanford University School of Medicine, Stanford, California
| | - Stephanie C Casey
- Department of Medicine/Oncology, Stanford University School of Medicine, Stanford, California
| | - James M Ford
- Department of Medicine/Oncology, Stanford University School of Medicine, Stanford, California. Department of Genetics, Stanford University School of Medicine, Stanford, California.
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Bryant C, Rawlinson R, Massey AJ. Chk1 inhibition as a novel therapeutic strategy for treating triple-negative breast and ovarian cancers. BMC Cancer 2014; 14:570. [PMID: 25104095 PMCID: PMC4137066 DOI: 10.1186/1471-2407-14-570] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Accepted: 07/28/2014] [Indexed: 12/31/2022] Open
Abstract
Background Chk1 inhibitors are currently in clinical trials as putative potentiators of cytotoxic chemotherapy drugs. Chk1 inhibitors may exhibit single agent anti-tumor activity in cancers with underlying DNA repair, DNA damage response or DNA replication defects. Methods Here we describe the cellular effects of the pharmacological inhibition of the checkpoint kinase Chk1 by the novel inhibitor V158411 in triple-negative breast cancer and ovarian cancer. Cytotoxicity, the effect on DNA damage response and cell cycle along with the ability to potentiate gemcitabine and cisplatin cytotoxicity in cultured cells was investigated. Western blotting of proteins involved in DNA repair, checkpoint activation, cell cycle and apoptosis was used to identify potential predictive biomarkers of Chk1 inhibitor sensitivity. Results The Chk1 inhibitors V158411, PF-477736 and AZD7762 potently inhibited the proliferation of triple-negative breast cancer cells as well as ovarian cancer cells, and these cell lines were sensitive compared to ER positive breast and other solid cancer cells lines. Inhibition of Chk1 in these sensitive cell lines induced DNA damage and caspase-3/7 dependent apoptosis. Western blot profiling identified pChk1 (S296) as a predictive biomarker of Chk1 inhibitor sensitivity in ovarian and triple-negative breast cancer and pH2AX (S139) in luminal breast cancer. Conclusions This finding suggests that Chk1 inhibitors either as single agents or in combination chemotherapy represents a viable therapeutic option for the treatment of triple-negative breast cancer. pChk1 (S296) tumor expression levels could serve as a useful biomarker to stratify patients who might benefit from Chk1 inhibitor therapy.
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28
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Afghahi A, Telli ML. The role of platinum therapy in triple-negative breast cancer. BREAST CANCER MANAGEMENT 2014. [DOI: 10.2217/bmt.14.21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
SUMMARY Breast cancer is a heterogeneous disease consisting of distinct biological subtypes with therapeutic and prognostic implications. Triple-negative breast cancer (TNBC) often follows a more aggressive disease course with poorer disease-specific survival compared with other breast cancer subtypes. Despite tremendous efforts to change the current treatment algorithm for women with TNBC, little has changed in over a decade. Encouraging results emerging from elegant preclinical studies to early-phase clinical trials demonstrate that platinum agents may have a role to play in the treatment of TNBC. In addition to germline BRCA1 and BRCA2 mutation status, other biomarkers with the ability to assess platinum responsiveness are emerging, including tissue-based assays that detect genomic 'scarring' caused by accumulated DNA damage and immunological biomarkers. Prospective evaluation of these biomarkers in a clinical setting is a high priority, as tailoring therapy with the incorporation of platinum agents based on biomarkers of response is an intriguing alternative to current standard of care.
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Affiliation(s)
- Anosheh Afghahi
- Stanford University School of Medicine, Division of Medical Oncology, Stanford, CA, USA
| | - Melinda L Telli
- Stanford University School of Medicine, Division of Medical Oncology, Stanford, CA, USA
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Dewalt RI, Kesler KA, Hammoud ZT, Baldridge L, Hattab EM, Jalal SI. Gastroesophageal junction adenocarcinoma displays abnormalities in homologous recombination and nucleotide excision repair. LUNG CANCER-TARGETS AND THERAPY 2014; 5:11-20. [PMID: 28210138 PMCID: PMC5217507 DOI: 10.2147/lctt.s57594] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Esophageal adenocarcinoma (EAC) continues to be a disease associated with high mortality. Among the factors leading to poor outcomes are innate resistance to currently available therapies, advanced stage at diagnosis, and complex biology. Platinum and ionizing radiation form the backbone of treatment for the majority of patients with EAC. Of the multiple processes involved in response to platinum chemotherapy or ionizing radiation, deoxyribonucleic acid (DNA) repair has been a major player in cancer sensitivity to these agents. DNA repair defects have been described in various malignancies. The purpose of this study was to determine whether alterations in DNA repair are present in EAC compared with normal gastroesophageal tissues. METHODS We analyzed the expression of genes involved in homologous recombination (HR), nonhomologous end-joining, and nucleotide excision repair (NER) pathways in 12 EAC tumor samples with their matched normal counterparts. These pathways were chosen because they are the main pathways involved in the repair of platinum- or ionizing-radiation-induced damage. In addition, abnormalities in these pathways have not been well characterized in EAC. RESULTS We identified increased expression of at least one HR gene in eight of the EAC tumor samples. Alterations in the expression of EME1, a structure-specific endonuclease involved in HR, were the most prevalent, with messenger (m)RNA overexpression in six of the EAC samples. In addition, all EAC samples revealed decreased expression of at least one of numerous NER genes including XPC, XPA, DDB2, XPF, and XPG. CONCLUSION Our study identified DNA repair dysregulation in EAC involving two critical pathways, HR and NER, and is the first demonstration of EME1 upregulation in any cancer. These DNA repair abnormalities have the potential to affect a number of processes such as genomic instability and therapy response, and the consequences of these defects deserve further study in EAC.
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Affiliation(s)
| | - Kenneth A Kesler
- Cardiothoracic Division, Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | | | - LeeAnn Baldridge
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Eyas M Hattab
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Shadia I Jalal
- Division of Hematology/Oncology, Department of Medicine; Indiana University Melvin and Bren Simon Cancer Center, Indianapolis, IN, USA
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Abstract
Although characterization of triple-negative breast cancer (TNBC) using mRNA gene expression profiling has certainly provided important insights, the concept of targeting DNA repair defects with DNA damaging therapeutics such as platinum in TNBC has been advanced from studies focusing on both germline and somatic genetic alterations associated with this breast cancer subtype. A growing body of preclinical and clinical data suggests that platinum chemotherapy has a potential role to play in the treatment of both early-stage and advanced TNBC, though results are not yet definitive. Randomized clinical trials that incorporate biomarkers of response, including germline BRCA1 and BRCA2 mutation status as well as tumor-based measures of genomic "scarring" resulting from the accumulation of DNA damage in tumors with deficient repair capacity, will help to clarify the optimal use and activity of platinum in TNBC.
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Affiliation(s)
- Melinda Telli
- From the Stanford University School of Medicine, Division of Oncology, Stanford, CA
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31
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Liu M, Mo QG, Wei CY, Qin QH, Huang Z, He J. Platinum-based chemotherapy in triple-negative breast cancer: A meta-analysis. Oncol Lett 2012; 5:983-991. [PMID: 23426861 PMCID: PMC3576281 DOI: 10.3892/ol.2012.1093] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Accepted: 12/03/2012] [Indexed: 12/31/2022] Open
Abstract
Triple-negative breast cancer (TNBC) tumors do not express estrogen, progesterone or HER2/neu-receptors. There are no specific treatment guidelines for TNBC patients, however, it has been postulated that their phenotypic and molecular similarity to BRCA1-associated cancers would confer sensitivity to certain cytotoxic agents, including platinum. The aim of this meta-analysis was to evaluate the clinical outcome of breast cancer patients treated with platinum-based chemotherapy who had TNBC compared with those with non-TNBC. Electronic (MEDLINE, EMBASE and Cochrane Library databases) and manual searches were conducted throughout December 2011 to identify trials evaluating the use of platinum-based chemotherapy for patients with breast cancer. The methodological quality was assessed in accordance with the QUOROM statement. Seven studies met the eligibility criteria, with a total of 717 patients. Of these patients, 225 were TNBC patients (31%), 492 were non-TNBC patients (69%), 275 received platinum-based neo-adjuvant chemotherapy and 442 had advanced/metastatic breast cancers. The results showed that during neo-adjuvant chemotherapy, the clinical complete response (cCR) rate and the pathological complete response (pCR) rates were significantly higher for the TNBC group compared with the non-TNBC group (OR, 2.68; 95% CI, 1.69–6.57; P=0.03 and OR, 2.89; 95% CI, 1.28, 6.53; P= 0.01, respectively). However, in advanced/metastatic breast cancers, the cCR, partial response (PR) and the disease control rates for the TNBC group were not significantly different compared with the non-TNBC group. The 6-month progression-free survival (PFS) rate for the TNBC group was higher than that of the non-TNBC group in all patients (OR, 1.81; 95% CI, 1.11–2.96; P= 0.02). However, the 1- and 2-year PFS rates were not significantly different (OR, 1.42; 95% CI, 0.69–2.92; P=0.35 and OR, 1.11; 95% CI, 0.35–3.52; P= 0.85, respectively). Furthermore, the PFS rates were not significantly different between the groups in patients with advanced/metastatic breast cancer. In conclusion, platinum-based chemotherapy in the breast cancer patients with TNBC showed an improved short-term efficacy compared with the non-TNBC group during neo-adjuvant chemotherapy, but has not yet been demonstrated to have an improved effect in advanced breast cancer.
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Affiliation(s)
- Miao Liu
- Breast Surgery Department of Tumor Hospital, Guangxi Medical University, Nanning, Gaungxi 530021, P.R. China
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Polotskaia A, Hoffman S, Krett NL, Shanmugam M, Rosen ST, Bargonetti J. 8-Amino-adenosine activates p53-independent cell death of metastatic breast cancers. Mol Cancer Ther 2012; 11:2495-504. [PMID: 22973058 DOI: 10.1158/1535-7163.mct-12-0085] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
8-Amino-adenosine (8-NH(2)-Ado) is a ribose sugar nucleoside analogue that reduces cellular ATP levels and inhibits mRNA synthesis. Estrogen receptor-negative (ER-) metastatic breast cancers often contain mutant p53; therefore, we asked if 8-NH(2)-Ado could kill breast cancer cells without activating the p53-pathway. Regardless of the breast cancer subtype tested or the p53 status of the cells, 8-NH(2)-Ado was more cytotoxic than either gemcitabine or etoposide. 8-NH(2)-Ado treatment inhibited cell proliferation, activated cell death, and did not activate transcription of the p53 target gene p21 or increase protein levels of either p53 or p21. This occurred in the estrogen receptor-positive (ER+) MCF-7 cells that express wild-type p53, the ER+ T47-D cells that express mutant p53, and the ER- MDA-MB-468 cells or MDA-MB-231 cells that both express mutant p53. 8-NH(2)-Ado induced apoptotic death of MCF-7 cells and apoptosis was not inhibited by knockdown of functional p53. Moreover, the pan-caspase inhibitor Z-VAD blocked the 8-NH(2)-Ado-induced MCF-7 cell death. Interestingly, 8-NH(2)-Ado caused the MDA-MB-231 cells to detach from the plate with only limited evidence of apoptotic cell death markers and the cell death was not inhibited by Z-VAD. Inhibition of MDA-MB-231 cell autophagy, by reduction of ATG7 or 3-methyladenine treatment, did not block this 8-NH(2)-Ado-mediated cytotoxicity. Importantly 8-NH(2)-Ado was highly cytotoxic to triple-negative breast cancer cells and worked through a pathway that did not require wild-type p53 for cytoxicity. Therefore, 8-NH(2)-Ado should be considered for the treatment of triple-negative breast cancers that are chemotherapy resistant.
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Affiliation(s)
- Alla Polotskaia
- Department of Biological Sciences, Hunter College, CUNY, 695 Park Ave., New York, NY 10065, USA
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Breast cancers with compromised DNA repair exhibit selective sensitivity to elesclomol. DNA Repair (Amst) 2012; 11:522-4. [DOI: 10.1016/j.dnarep.2012.02.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Revised: 02/10/2012] [Accepted: 02/14/2012] [Indexed: 11/19/2022]
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Atipairin A, Ratanaphan A. In Vitro Enhanced Sensitivity to Cisplatin in D67Y BRCA1 RING Domain Protein. BREAST CANCER-BASIC AND CLINICAL RESEARCH 2011; 5:201-8. [PMID: 22084573 PMCID: PMC3201098 DOI: 10.4137/bcbcr.s8184] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BRCA1 is a tumor suppressor protein involved in maintaining genomic integrity through multiple functions in DNA damage repair, transcriptional regulation, cell cycle checkpoint, and protein ubiquitination. The BRCA1-BARD1 RING complex has an E3 ubiquitin ligase function that plays essential roles in response to DNA damage repair. BRCA1-associated cancers have been shown to confer a hypersensitivity to chemotherapeutic agents. Here, we have studied the functional consequence of the in vitro E3 ubiquitin ligase activity and cisplatin sensitivity of the missense mutation D67Y BRCA1 RING domain. The D67Y BRCA1 RING domain protein exhibited the reduced ubiquitination function, and was more susceptible to the drug than the D67E or wild-type BRCA1 RING domain protein. This evidence emphasized the potential of using the BRCA1 dysfunction as an important determinant of chemotherapy responses in breast cancer.
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Affiliation(s)
- Apichart Atipairin
- Laboratory of Pharmaceutical Biotechnology, Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand
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