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Ash LJ, Busia-Bourdain O, Okpattah D, Kamel A, Liberchuk A, Wolfe AL. KRAS: Biology, Inhibition, and Mechanisms of Inhibitor Resistance. Curr Oncol 2024; 31:2024-2046. [PMID: 38668053 PMCID: PMC11049385 DOI: 10.3390/curroncol31040150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 03/29/2024] [Accepted: 04/01/2024] [Indexed: 04/28/2024] Open
Abstract
KRAS is a small GTPase that is among the most commonly mutated oncogenes in cancer. Here, we discuss KRAS biology, therapeutic avenues to target it, and mechanisms of resistance that tumors employ in response to KRAS inhibition. Several strategies are under investigation for inhibiting oncogenic KRAS, including small molecule compounds targeting specific KRAS mutations, pan-KRAS inhibitors, PROTACs, siRNAs, PNAs, and mutant KRAS-specific immunostimulatory strategies. A central challenge to therapeutic effectiveness is the frequent development of resistance to these treatments. Direct resistance mechanisms can involve KRAS mutations that reduce drug efficacy or copy number alterations that increase the expression of mutant KRAS. Indirect resistance mechanisms arise from mutations that can rescue mutant KRAS-dependent cells either by reactivating the same signaling or via alternative pathways. Further, non-mutational forms of resistance can take the form of epigenetic marks, transcriptional reprogramming, or alterations within the tumor microenvironment. As the possible strategies to inhibit KRAS expand, understanding the nuances of resistance mechanisms is paramount to the development of both enhanced therapeutics and innovative drug combinations.
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Affiliation(s)
- Leonard J. Ash
- Department of Biological Sciences, Hunter College, City University of New York, New York, NY 10065, USA
- Molecular, Cellular, and Developmental Biology Subprogram of the Biology Ph.D. Program, Graduate Center, City University of New York, New York, NY 10031, USA
| | - Ottavia Busia-Bourdain
- Department of Biological Sciences, Hunter College, City University of New York, New York, NY 10065, USA
| | - Daniel Okpattah
- Biochemistry Ph.D. Program, Graduate Center, City University of New York, New York, NY 10031, USA
| | - Avrosina Kamel
- Department of Biological Sciences, Hunter College, City University of New York, New York, NY 10065, USA
- Macaulay Honors College, Hunter College, City University of New York, New York, NY 10065, USA
| | - Ariel Liberchuk
- Department of Biological Sciences, Hunter College, City University of New York, New York, NY 10065, USA
- Macaulay Honors College, Hunter College, City University of New York, New York, NY 10065, USA
| | - Andrew L. Wolfe
- Department of Biological Sciences, Hunter College, City University of New York, New York, NY 10065, USA
- Molecular, Cellular, and Developmental Biology Subprogram of the Biology Ph.D. Program, Graduate Center, City University of New York, New York, NY 10031, USA
- Biochemistry Ph.D. Program, Graduate Center, City University of New York, New York, NY 10031, USA
- Department of Pharmacology, Weill Cornell Medicine, New York, NY 10021, USA
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2
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Popova KB, Penchovsky R. General and Specific Cytotoxicity of Chimeric Antisense Oligonucleotides in Bacterial Cells and Human Cell Lines. Antibiotics (Basel) 2024; 13:122. [PMID: 38391508 PMCID: PMC10885958 DOI: 10.3390/antibiotics13020122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 01/21/2024] [Accepted: 01/24/2024] [Indexed: 02/24/2024] Open
Abstract
In the last two decades, antisense oligonucleotide technology has emerged as a promising approach to tackling various healthcare issues and diseases, such as antimicrobial resistance, cancer, and neurodegenerative diseases. Despite the numerous improvements in the structure and modifications of the antisense oligonucleotides (ASOs), there are still specific problems with their clinical efficacy and preclinical cytotoxicity results. To better understand the effects of the ASOs in this paper, we conducted many MTT assays to assess the general and specific cytotoxicity of four new chimeric ASOs in bacterial cells and human cell lines. We demonstrate the absence of inhibitory activity in the human pathogenic bacteria Staphylococcus aureus by non-specific ASOs. The pVEC-ASO1 and pVEC-ASO2 are designed to have no specific targets in S. aureus. They have only partial hybridization to the guanylate kinase mRNA. The pVEC-ASO3 targets UBA2 mRNA, a hallmark cancer pathology in MYC-driven cancer, while pVEC-ASO4 has no complementary sequences. We discovered some cytotoxicity of the non-specific ASOs in healthy and cancer human cell lines. The results are compared with two other ASOs, targeting specific mRNA in cancer cells. All ASOs are delivered into the cell via the cell-penetrating oligopeptide pVEC, which is attached to them. We draw a good correlation between the thermodynamic stability of ASO/target RNA and the toxicity effect in human cell lines. The data obtained signify the importance of thorough bioinformatic analysis and high specificity in designing and developing novel ASOs for safer therapeutic agents in clinical practice.
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Affiliation(s)
- Katya B Popova
- Laboratory of Synthetic Biology and Bioinformatics, Faculty of Biology, Sofia University "St. Kliment Ohridski", 8 Dragan Tzankov Blvd., 1164 Sofia, Bulgaria
- Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 1784 Sofia, Bulgaria
| | - Robert Penchovsky
- Laboratory of Synthetic Biology and Bioinformatics, Faculty of Biology, Sofia University "St. Kliment Ohridski", 8 Dragan Tzankov Blvd., 1164 Sofia, Bulgaria
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Chaturvedi S, Biswas M, Sadhukhan S, Sonawane A. Role of EGFR and FASN in breast cancer progression. J Cell Commun Signal 2023:10.1007/s12079-023-00771-w. [PMID: 37490191 DOI: 10.1007/s12079-023-00771-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 05/22/2023] [Indexed: 07/26/2023] Open
Abstract
Breast cancer (BC) emerged as one of the life-threatening diseases among females. Despite notable improvements made in cancer detection and treatment worldwide, according to GLOBACAN 2020, BC is the fifth leading cancer, with an estimated 1 in 6 cancer deaths, in a majority of countries. However, the exact cause that leads to BC progression still needs to be determined. Here, we reviewed the role of two novel biomarkers responsible for 50-70% of BC progression. The first one is epidermal growth factor receptor (EGFR) which belongs to the ErbB tyrosine kinases family, signalling pathways associated with it play a significant role in regulating cell proliferation and division. Another one is fatty acid synthase (FASN), a key enzyme responsible for the de novo lipid synthesis required for cancer cell development. This review presents a rationale for the EGFR-mediated pathways, their interaction with FASN, communion of these two biomarkers with BC, and improvements to overcome drug resistance caused by them.
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Affiliation(s)
- Suchi Chaturvedi
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Khandwa Road, Simrol, Madhya Pradesh, 453552, India
| | - Mainak Biswas
- School of Biotechnology, KIIT Deemed to be University, Bhubaneswar, Odisha, 751024, India
| | - Sushabhan Sadhukhan
- Department of Chemistry, Indian Institute of Technology Palakkad, Palakkad, Kerala, 678623, India.
- Physical & Chemical Biology Laboratory and Department of Biological Sciences and Engineering, Indian Institute of Technology Palakkad, Palakkad, Kerala, 678623, India.
| | - Avinash Sonawane
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Khandwa Road, Simrol, Madhya Pradesh, 453552, India.
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Sagan OA, Rothstein A, Jambunathan B, Hadziahmetovic M, Antoniolli A, Rashid MH. Case report: Neuroendocrine breast carcinoma with a germline EGFR T790M mutation. Front Oncol 2023; 13:1176868. [PMID: 37265791 PMCID: PMC10230275 DOI: 10.3389/fonc.2023.1176868] [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: 03/01/2023] [Accepted: 05/02/2023] [Indexed: 06/03/2023] Open
Abstract
Background The epidermal growth factor receptor (EGFR) p.Thr790Met (T790M) mutation was discovered as a resistance mechanism in patients with lung cancer treated with first- and second-generation tyrosine kinase inhibitors. Further studies revealed the EGFR T790M mutation in treatment-naive non-small cell lung carcinoma (NSCLC) and as a rare germline mutation strongly associated with NSCLC. Somatic EGFR T790M mutations have been reported in a limited population of patients with triple-negative breast cancer. There are no previous reports of a germline EGFR T790M mutation found in a patient with breast cancer. Case presentation We present a rare case of a 42-year-old woman with a rapidly progressing 8 cm mass in the right lateral breast. An additional right breast mass with multiple lymph nodes characteristic or suspicious of metastasis was found. Ultrasound-guided biopsy showed high-grade, poorly differentiated invasive neuroendocrine carcinoma of the right breast and metastatic carcinoma of a right axillary lymph node. Genetic testing revealed a germline EGFR T790M mutation. The patient underwent neoadjuvant chemotherapy, right mastectomy with lymph node dissection, adjuvant radiation to the right chest wall and axilla, and adjuvant chemotherapy. Conclusion This is the first reported case of a patient with high-grade neuroendocrine carcinoma, triple-negative breast cancer and a germline EGFR T790M mutation. Further investigation is needed to find a possible correlation between the cancer in this patient and her mutation. Since there are no current guidelines, further research is also needed to define screening protocols for patients with germline EGFR T790M mutations. Additional treatment options and cancer risk could also be found with further research, which would benefit all patients with a germline EGFR T790M mutation.
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Affiliation(s)
- Olivia A. Sagan
- The University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States
| | - Anna Rothstein
- The University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States
| | | | - Mersiha Hadziahmetovic
- The University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States
| | | | - M. Hammad Rashid
- University of Toledo Medical Center – Dana Cancer Center, Toledo, OH, United States
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Wang M, Liu H, Ren J, Huang Y, Deng Y, Liu Y, Chen Z, Chow FWN, Leung PHM, Li S. Enzyme-Assisted Nucleic Acid Amplification in Molecular Diagnosis: A Review. BIOSENSORS 2023; 13:bios13020160. [PMID: 36831926 PMCID: PMC9953907 DOI: 10.3390/bios13020160] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 01/03/2023] [Accepted: 01/05/2023] [Indexed: 06/12/2023]
Abstract
Infectious diseases and tumors have become the biggest medical challenges in the 21st century. They are driven by multiple factors such as population growth, aging, climate change, genetic predispositions and more. Nucleic acid amplification technologies (NAATs) are used for rapid and accurate diagnostic testing, providing critical information in order to facilitate better follow-up treatment and prognosis. NAATs are widely used due their high sensitivity, specificity, rapid amplification and detection. It should be noted that different NAATs can be selected according to different environments and research fields; for example, isothermal amplification with a simple operation can be preferred in developing countries or resource-poor areas. In the field of translational medicine, CRISPR has shown great prospects. The core component of NAAT lies in the activity of different enzymes. As the most critical material of nucleic acid amplification, the key role of the enzyme is self-evident, playing the upmost important role in molecular diagnosis. In this review, several common enzymes used in NAATs are compared and described in detail. Furthermore, we summarize both the advances and common issues of NAATs in clinical application.
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Affiliation(s)
- Meiling Wang
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Hongna Liu
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Jie Ren
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Yunqi Huang
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Yan Deng
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Yuan Liu
- Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Zhu Chen
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Franklin Wang-Ngai Chow
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Polly Hang-Mei Leung
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Song Li
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
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Chen Z, Qi Y, He J, Xu C, Ge Q, Zhuo W, Si J, Chen S. Distribution and characterization of extrachromosomal circular DNA in colorectal cancer. MOLECULAR BIOMEDICINE 2022; 3:38. [PMID: 36459282 PMCID: PMC9718908 DOI: 10.1186/s43556-022-00104-0] [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: 07/19/2022] [Accepted: 11/09/2022] [Indexed: 12/05/2022] Open
Abstract
Extrachromosomal circular DNA (eccDNA) has been shown to play an important role in the amplification of tumor genes and the maintenance of intra-tumor genetic heterogeneity, although its complex functional mechanism still remains to be elucidated. As the top three common malignancies in the world, colorectal cancer (CRC) has been threatening human life and health, whose tumorigenesis and development may have elusive connection with eccDNAs. Here, we described the extensive distribution of eccDNAs in the CRC tissues using Circle-seq, which range in size from hundreds to thousands of base pairs (bp). The distribution in tumor tissues had aggregation and tendency compared with random in tumor-adjacent tissues, accompanied with smaller and more regular circle lengths. After sequencing and restoring, we found that the shedding sites of eccDNAs in CRC had similar tendency in chromosome distribution, and focused on tumor-associated genes. Meanwhile, we combined RNA sequencing to explore the correlation of eccDNA differential expression in the gene transcription and signaling pathways, confirming a connection between eccDNA and RNA somewhere. Subsequently, we validated eccDNAs in CRC cell lines and the potential consistency of the junction sites of eccDNAs in CRC tissues and cell lines. Using fragments of the cationic amino acid transporter SLC7A1 to synthesize eccDNAs, we discovered the role of eccDNAs in different regions within the gene.
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Affiliation(s)
- Zhehang Chen
- grid.13402.340000 0004 1759 700XDepartment of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, Province China ,grid.13402.340000 0004 1759 700XInstitute of Gastroenterology, Zhejiang University, Hangzhou, China
| | - Yadong Qi
- grid.13402.340000 0004 1759 700XDepartment of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, Province China ,grid.13402.340000 0004 1759 700XInstitute of Gastroenterology, Zhejiang University, Hangzhou, China
| | - Jiamin He
- grid.13402.340000 0004 1759 700XDepartment of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, Province China ,grid.13402.340000 0004 1759 700XInstitute of Gastroenterology, Zhejiang University, Hangzhou, China
| | - Chaochao Xu
- grid.13402.340000 0004 1759 700XDepartment of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, Province China ,grid.13402.340000 0004 1759 700XInstitute of Gastroenterology, Zhejiang University, Hangzhou, China
| | - Qiwei Ge
- grid.13402.340000 0004 1759 700XDepartment of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, Province China ,grid.412465.0Department of Gastroenterology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, Province China
| | - Wei Zhuo
- grid.13402.340000 0004 1759 700XInstitute of Gastroenterology, Zhejiang University, Hangzhou, China ,grid.13402.340000 0004 1759 700XCancer Center, Zhejiang University, Hangzhou, China ,grid.13402.340000 0004 1759 700XDepartment of Cell Biology and Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jianmin Si
- grid.13402.340000 0004 1759 700XDepartment of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, Province China ,grid.13402.340000 0004 1759 700XInstitute of Gastroenterology, Zhejiang University, Hangzhou, China ,grid.13402.340000 0004 1759 700XCancer Center, Zhejiang University, Hangzhou, China
| | - Shujie Chen
- grid.13402.340000 0004 1759 700XDepartment of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, Province China ,grid.13402.340000 0004 1759 700XInstitute of Gastroenterology, Zhejiang University, Hangzhou, China ,grid.13402.340000 0004 1759 700XCancer Center, Zhejiang University, Hangzhou, China
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EGF-conjugated bio-safe luteolin gold nanoparticles induce cellular toxicity and cell death mediated by site-specific rapid uptake in human triple negative breast cancer cells. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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You KS, Yi YW, Cho J, Park JS, Seong YS. Potentiating Therapeutic Effects of Epidermal Growth Factor Receptor Inhibition in Triple-Negative Breast Cancer. Pharmaceuticals (Basel) 2021; 14:589. [PMID: 34207383 PMCID: PMC8233743 DOI: 10.3390/ph14060589] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/07/2021] [Accepted: 06/14/2021] [Indexed: 12/13/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is a subset of breast cancer with aggressive characteristics and few therapeutic options. The lack of an appropriate therapeutic target is a challenging issue in treating TNBC. Although a high level expression of epidermal growth factor receptor (EGFR) has been associated with a poor prognosis among patients with TNBC, targeted anti-EGFR therapies have demonstrated limited efficacy for TNBC treatment in both clinical and preclinical settings. However, with the advantage of a number of clinically approved EGFR inhibitors (EGFRis), combination strategies have been explored as a promising approach to overcome the intrinsic resistance of TNBC to EGFRis. In this review, we analyzed the literature on the combination of EGFRis with other molecularly targeted therapeutics or conventional chemotherapeutics to understand the current knowledge and to provide potential therapeutic options for TNBC treatment.
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Affiliation(s)
- Kyu Sic You
- Department of Biochemistry, College of Medicine, Dankook University, Cheonan 31116, Chungcheongnam-do, Korea;
- Graduate School of Convergence Medical Science, Dankook University, Cheonan 3116, Chungcheongnam-do, Korea
| | - Yong Weon Yi
- Department of Nanobiomedical Science, Dankook University, Cheonan 31116, Chungcheongnam-do, Korea; (Y.W.Y.); (J.C.)
| | - Jeonghee Cho
- Department of Nanobiomedical Science, Dankook University, Cheonan 31116, Chungcheongnam-do, Korea; (Y.W.Y.); (J.C.)
| | - Jeong-Soo Park
- Department of Biochemistry, College of Medicine, Dankook University, Cheonan 31116, Chungcheongnam-do, Korea;
| | - Yeon-Sun Seong
- Department of Biochemistry, College of Medicine, Dankook University, Cheonan 31116, Chungcheongnam-do, Korea;
- Graduate School of Convergence Medical Science, Dankook University, Cheonan 3116, Chungcheongnam-do, Korea
- Department of Nanobiomedical Science, Dankook University, Cheonan 31116, Chungcheongnam-do, Korea; (Y.W.Y.); (J.C.)
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Silva Rocha F, da Silva Maués JH, Brito Lins Pereira CM, Moreira-Nunes CA, Rodriguez Burbano RM. Analysis of Increased EGFR and IGF-1R Signaling and Its Correlation with Socio-Epidemiological Features and Biological Profile in Breast Cancer Patients: A Study in Northern Brazil. BREAST CANCER (DOVE MEDICAL PRESS) 2021; 13:325-339. [PMID: 34054308 PMCID: PMC8153070 DOI: 10.2147/bctt.s308554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 04/02/2021] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Breast cancer (BC) is the second most frequent cancer worldwide. It is known that a subset of BC has amplification, and overexpression of the epidermal growth factor receptor (EGFR) and high expression of the insulin-like growth factor receptor-1 (IGF-1R) are correlated with a favorable prognosis. This study aimed to evaluate the prognostic and predictive values of the EGFR and IGF-1R in tumor samples from patients with BC and their correlation with socio-epidemiological features. PATIENTS AND METHODS We analyzed socio-epidemiological, clinical-pathological data and tumor tissues from 124 patients with BC undergoing treatment, to assess levels of EGFR and IGF-1R mRNA and protein. The predictive performance included the calculation of area-under-the-curve (AUC) to discriminate groups of patients with high and low mRNA expression associated with survival analysis within each molecular group of BC. RESULTS We found a significant expression increase (p <0.001) in EGFR associated with body mass index, angiolymphatic invasion, compromised lymph nodes and follow-up in 58.1% of the triple-negative and HER overexpression tumors. The increase in IGF-IR was significant (p <0.001) in 41.9% of luminal tumors A and B. ROC analysis showed that EGFR had a higher predictive performance (AUC = 0.891) than IGF-1R (AUC = 0.60). The Kaplan-Meier analysis indicated that only the high expression of EGFR was associated with a decreased probability of survival for patients, what did not happen with IGF-1R. CONCLUSION Our results suggest that EGFR and IGF-1R expression patterns associated with the clinical characteristics of patients and biological profile influenced the evolution of BC.
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Affiliation(s)
| | - Jersey Heitor da Silva Maués
- Laboratory of Molecular Biology, Ophir Loyola Hospital, Belém, PA, Brazil
- Laboratory of Human Cytogenetics, Institute of Biological Sciences, Federal University of Pará, Belém, PA, Brazil
| | | | - Caroline Aquino Moreira-Nunes
- Laboratory of Pharmacogenetics, Drug Research and Development Center (NPDM), Federal University of Ceará, Fortaleza, CE, Brazil
| | - Rommel Mário Rodriguez Burbano
- Laboratory of Molecular Biology, Ophir Loyola Hospital, Belém, PA, Brazil
- Laboratory of Human Cytogenetics, Institute of Biological Sciences, Federal University of Pará, Belém, PA, Brazil
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Cruz-Gordillo P, Honeywell ME, Harper NW, Leete T, Lee MJ. ELP-dependent expression of MCL1 promotes resistance to EGFR inhibition in triple-negative breast cancer cells. Sci Signal 2020; 13:13/658/eabb9820. [PMID: 33203722 DOI: 10.1126/scisignal.abb9820] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Targeted therapeutics for cancer generally exploit "oncogene addiction," a phenomenon in which the growth and survival of tumor cells depend on the activity of a particular protein. However, the efficacy of oncogene-targeted therapies varies substantially. For instance, targeting epidermal growth factor receptor (EGFR) signaling is effective in some non-small cell lung cancer (NSCLC) but not in triple-negative breast cancer (TNBC), although these cancers show a similar degree of increase in EGFR activity. Using a genome-wide CRISPR-Cas9 genetic knockout screen, we found that the Elongator (ELP) complex mediates insensitivity to the EGFR inhibitor erlotinib in TNBC cells by promoting the synthesis of the antiapoptotic protein Mcl-1. Depleting ELP proteins promoted apoptotic cell death in an EGFR inhibition-dependent manner. Pharmacological inhibition of Mcl-1 synergized with EGFR inhibition in a panel of genetically diverse TNBC cells. The findings indicate that TNBC "addiction" to EGFR signaling is masked by the ELP complex and that resistance to EGFR inhibitors in TNBC might be overcome by cotargeting Mcl-1.
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Affiliation(s)
- Peter Cruz-Gordillo
- Program in Systems Biology, University of Massachusetts Medical School, Worcester MA 01605, USA
| | - Megan E Honeywell
- Program in Systems Biology, University of Massachusetts Medical School, Worcester MA 01605, USA
| | - Nicholas W Harper
- Program in Systems Biology, University of Massachusetts Medical School, Worcester MA 01605, USA
| | - Thomas Leete
- Program in Systems Biology, University of Massachusetts Medical School, Worcester MA 01605, USA
| | - Michael J Lee
- Program in Systems Biology, University of Massachusetts Medical School, Worcester MA 01605, USA. .,Program in Molecular Medicine, Department of Molecular, Cell, and Cancer Biology (MCCB), University of Massachusetts Medical School, Worcester MA 01605, USA
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11
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Targeting Receptors on Cancer Cells with Protein Toxins. Biomolecules 2020; 10:biom10091331. [PMID: 32957689 PMCID: PMC7563326 DOI: 10.3390/biom10091331] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/12/2020] [Accepted: 09/16/2020] [Indexed: 02/07/2023] Open
Abstract
Cancer cells frequently upregulate surface receptors that promote growth and survival. These receptors constitute valid targets for intervention. One strategy involves the delivery of toxic payloads with the goal of killing those cancer cells with high receptor levels. Delivery can be accomplished by attaching a toxic payload to either a receptor-binding antibody or a receptor-binding ligand. Generally, the cell-binding domain of the toxin is replaced with a ligand or antibody that dictates a new binding specificity. The advantage of this “immunotoxin” approach lies in the potency of these chimeric molecules for killing cancer cells. However, receptor expression on normal tissue represents a significant obstacle to therapeutic intervention.
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12
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Yan Y, Guo G, Huang J, Gao M, Zhu Q, Zeng S, Gong Z, Xu Z. Current understanding of extrachromosomal circular DNA in cancer pathogenesis and therapeutic resistance. J Hematol Oncol 2020; 13:124. [PMID: 32928268 PMCID: PMC7491193 DOI: 10.1186/s13045-020-00960-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 09/03/2020] [Indexed: 02/08/2023] Open
Abstract
Extrachromosomal circular DNA was recently found to be particularly abundant in multiple human cancer cells, although its frequency varies among different tumor types. Elevated levels of extrachromosomal circular DNA have been considered an effective biomarker of cancer pathogenesis. Multiple reports have demonstrated that the amplification of oncogenes and therapeutic resistance genes located on extrachromosomal DNA is a frequent event that drives intratumoral genetic heterogeneity and provides a potential evolutionary advantage. This review highlights the current understanding of the extrachromosomal circular DNA present in the tissues and circulation of patients with advanced cancers and provides a detailed discussion of their substantial roles in tumor regulation. Confirming the presence of cancer-related extrachromosomal circular DNA would provide a putative testing strategy for the precision diagnosis and treatment of human malignancies in clinical practice.
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Affiliation(s)
- Yuanliang Yan
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.,Department of Oncology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Guijie Guo
- Department of Oncology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Jinzhou Huang
- Department of Oncology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Ming Gao
- Department of Oncology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Qian Zhu
- Department of Oncology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Shuangshuang Zeng
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Zhicheng Gong
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Zhijie Xu
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China. .,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
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Liu Y, Zhou Y, Huang K, Fang X, Li Y, Wang F, An L, Chen Q, Zhang Y, Shi A, Yu S, Zhang J. Targeting epidermal growth factor-overexpressing triple-negative breast cancer by natural killer cells expressing a specific chimeric antigen receptor. Cell Prolif 2020; 53:e12858. [PMID: 32592435 PMCID: PMC7445407 DOI: 10.1111/cpr.12858] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 05/20/2020] [Accepted: 05/21/2020] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES Traditional cancer therapy and regular immunotherapy are ineffective for treating triple-negative breast cancer (TNBC) patients. Recently, chimeric antigen receptor-engineered natural killer cells (CAR NK) have been applied to target several hormone receptors on different cancer cells to improve the efficacy of immunotherapy. Furthermore, epidermal growth factor receptor (EGFR) is a potential therapeutic target for TNBC. Here, we demonstrated that EGFR-specific CAR NK cells (EGFR-CAR NK cells) could be potentially used to treat patients with TNBC exhibiting enhanced EGFR expression. MATERIALS AND METHODS We investigated the cytotoxic effects of EGFR-CAR NK cells against TNBC cells in vitro and in vivo. The two types of EGFR-CAR NK cells were generated by transducing lentiviral vectors containing DNA sequences encoding the single-chain variable fragment (scFv) regions of the two anti-EGFR antibodies. The cytotoxic and anti-tumor effects of the two cell types were examined by performing cytokine release and cytotoxicity assays in vitro, and tumor growth assays in breast cancer cell line-derived xenograft (CLDX) and patient-derived xenograft (PDX) mouse models. RESULTS Both EGFR-CAR NK cell types were activated by TNBC cells exhibiting upregulated EGFR expression and specifically triggered the lysis of the TNBC cells in vitro. Furthermore, the two EGFR-CAR NK cell types inhibited CLDX and PDX tumors in mice. CONCLUSIONS This study suggested that treatment with EGFR-CAR NK cells could be a promising strategy for TNBC patients.
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Affiliation(s)
- Yan Liu
- The Key Laboratory of Bio‐Medical DiagnosticsSuzhou Institute of Biomedical Engineering and Technology (SIBET)Chinese Academy of SciencesSuzhouChina
- Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchunChina
- Zhengzhou Institute of Engineering and Technology Affiliated with SIBETZhengzhouChina
| | | | - Kuo‐Hsiang Huang
- The Key Laboratory of Bio‐Medical DiagnosticsSuzhou Institute of Biomedical Engineering and Technology (SIBET)Chinese Academy of SciencesSuzhouChina
| | - Xujie Fang
- The Key Laboratory of Bio‐Medical DiagnosticsSuzhou Institute of Biomedical Engineering and Technology (SIBET)Chinese Academy of SciencesSuzhouChina
| | - Ying Li
- The Key Laboratory of Bio‐Medical DiagnosticsSuzhou Institute of Biomedical Engineering and Technology (SIBET)Chinese Academy of SciencesSuzhouChina
| | - Feifei Wang
- The Key Laboratory of Bio‐Medical DiagnosticsSuzhou Institute of Biomedical Engineering and Technology (SIBET)Chinese Academy of SciencesSuzhouChina
- Zhengzhou Institute of Engineering and Technology Affiliated with SIBETZhengzhouChina
| | - Li An
- The Key Laboratory of Bio‐Medical DiagnosticsSuzhou Institute of Biomedical Engineering and Technology (SIBET)Chinese Academy of SciencesSuzhouChina
- Zhengzhou Institute of Engineering and Technology Affiliated with SIBETZhengzhouChina
| | - Qingfei Chen
- The Key Laboratory of Bio‐Medical DiagnosticsSuzhou Institute of Biomedical Engineering and Technology (SIBET)Chinese Academy of SciencesSuzhouChina
| | - Yunchao Zhang
- The Key Laboratory of Bio‐Medical DiagnosticsSuzhou Institute of Biomedical Engineering and Technology (SIBET)Chinese Academy of SciencesSuzhouChina
| | - Aihua Shi
- The Key Laboratory of Bio‐Medical DiagnosticsSuzhou Institute of Biomedical Engineering and Technology (SIBET)Chinese Academy of SciencesSuzhouChina
- Zhengzhou Institute of Engineering and Technology Affiliated with SIBETZhengzhouChina
| | - Shuang Yu
- The Key Laboratory of Bio‐Medical DiagnosticsSuzhou Institute of Biomedical Engineering and Technology (SIBET)Chinese Academy of SciencesSuzhouChina
- Xuzhou Medical UniversityXuzhouChina
| | - Jingzhong Zhang
- The Key Laboratory of Bio‐Medical DiagnosticsSuzhou Institute of Biomedical Engineering and Technology (SIBET)Chinese Academy of SciencesSuzhouChina
- Xuzhou Medical UniversityXuzhouChina
- Tianjin Guokeyigong Science and Technology Development Company LimitedTianjinChina
- Zhengzhou Institute of Engineering and Technology Affiliated with SIBETZhengzhouChina
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14
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Jouali F, El Ansari FZ, Marchoudi N, Barakat A, Zmaimita H, Samlali H, Fekkak J. EGFR, BRCA1, BRCA2 and TP53 genetic profile in Moroccan triple negative breast cancer cases. INTERNATIONAL JOURNAL OF MOLECULAR EPIDEMIOLOGY AND GENETICS 2020; 11:16-25. [PMID: 32714499 PMCID: PMC7373717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 06/05/2020] [Indexed: 06/11/2023]
Abstract
Triple negative breast cancer account for 10% to 20% of all newly diagnosed breast cancer cases, this subtype is well known for its lack of estrogen, progesterone and HER2 expression unlike the other subtypes of breast cancer that usually express at least one of the three. The absence of a specific biomarker for TNBC has made his treatment very challenging and his death rates very high compared to the other subtypes. Therefore, in morocco, many studies have been conducted in the hope of finding a specific biomarker for TNBC, but none of these studies has analyzed the EGFR protein expression and its gene molecular profile and correlated the EGFR analyses results with the genetic profile of other genes. In this study, we analyzed EGFR protein expression and the molecular profile of EGFR, BRCA1, BRCA2 and TP53 genes in 47 TNBC patients. We conducted a retrospective study of 47 Moroccan patients diagnosed with triple negative breast cancer between early 2013 and 2016. In this study, we have analyzed the EGFR. Protein expression, for all the 47 TNBC patients using pharmDx Kit. Then we used the Ion Personal Genome Machine (PGM) and Ion Ampliseq BRCA1/2 panel and hotspot Cancer panel to analyze the molecular profile of BRCA1/2 genes and the hotspot regions of TP53 and EGFR genes. The statistical analysis was performed using IBM SPSS Statistics ver. From the 47 analyzed patients using EGFR pharmDx Kit only 16 (34%) had EGFR overexpression while 31 (66%), patients were normal, moreover, From the 47 TNBC patients, only 39 underwent Mutational analysis of EGFR, BRCA1/2, and TP53 genes. One patient harbored a BRCA1 mutation c.798_799delTT (p.Ser267Lys). While for TP53 gene, 16 patients out of 39 (41%) presented hotspot mutations, seven of them harbored c.743G>A (p.Arg248Gln) mutation, six patients harbored exon 6 mutations from which five harbored the mutation c.659A>G (p.Tyr220Cys) and one the mutation c.817C>T (p.Arg273Cys), and finally, three patients harbored the mutation c.524G>A (p.Arg175His). Regarding BRCA2 and EGFR sequencing results, no mutations or other genetic alterations were detected in 39 patients that were successfully sequenced. Statistical analysis revealed the absence of any correlations.
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Affiliation(s)
- Farah Jouali
- Anoual Laboratory of Radio-Immuno AnalysisCasablanca 20360, Morocco
| | - Fatima Zahra El Ansari
- Anoual Laboratory of Radio-Immuno AnalysisCasablanca 20360, Morocco
- Biomedical Genomics and Oncogenetics Research Laboratory, Faculty of Sciences and Techniques of Tangier, University Abdelmalek EssaâdiTangier 90000, Morocco
| | - Nabila Marchoudi
- Anoual Laboratory of Radio-Immuno AnalysisCasablanca 20360, Morocco
| | - Amina Barakat
- Biomedical Genomics and Oncogenetics Research Laboratory, Faculty of Sciences and Techniques of Tangier, University Abdelmalek EssaâdiTangier 90000, Morocco
| | | | | | - Jamal Fekkak
- Anoual Laboratory of Radio-Immuno AnalysisCasablanca 20360, Morocco
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15
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McKnight BN, Kim S, Boerner JL, Viola NT. Cetuximab PET delineated changes in cellular distribution of EGFR upon dasatinib treatment in triple negative breast cancer. Breast Cancer Res 2020; 22:37. [PMID: 32295603 PMCID: PMC7160960 DOI: 10.1186/s13058-020-01270-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 03/25/2020] [Indexed: 12/12/2022] Open
Abstract
Background At least 50% of triple negative breast cancer (TNBC) overexpress the epidermal growth factor receptor, EGFR, which paved the way for clinical trials investigating its blockade. Outcomes remained dismal stemming from mechanisms of resistance particularly the nuclear cycling of EGFR, which is enhanced by Src activation. Attenuation of Src reversed nuclear translocation, restoring EGFR to the cell surface. Herein, we hypothesize that changes in cellular distribution of EGFR upon Src inhibition with dasatinib can be annotated through the EGFR immunopositron emission tomography (immunoPET) radiotracer, [89Zr]Zr-cetuximab. Methods Nuclear and non-nuclear EGFR levels of dasatinib-treated vs. untreated MDA-MB-231 and MDA-MB-468 cells were analyzed via immunoblots. Both treated and untreated cells were exposed to [89Zr]Zr-cetuximab to assess binding at 4 °C and 37 °C. EGFR-positive MDA-MB-231, MDA-MB-468, and a patient-derived xenograft were treated with dasatinib or vehicle followed by cetuximab PET imaging to compare EGFR levels. After imaging, the treated mice were separated into two groups: one cohort continued with dasatinib with the addition of cetuximab while the other cohort received dasatinib alone. Correlations between the radiotracer uptake vs. changes in tumor growth and EGFR expression from immunoblots were analyzed. Results Treated cells displayed higher binding of [89Zr]Zr-cetuximab to the cell membrane at 4 °C and with greater internalized activity at 37 °C vs. untreated cells. In all tumor models, higher accumulation of the radiotracer in dasatinib-treated groups was observed compared to untreated tumors. Treated tumors displayed significantly decreased pSrc (Y416) with retained total Src levels compared to control. In MDA-MB-468 and PDX tumors, the analysis of cetuximab PET vs. changes in tumor volume showed an inverse relationship where high tracer uptake in the tumor demonstrated minimal tumor volume progression. Furthermore, combined cetuximab and dasatinib treatment showed better tumor regression compared to control and dasatinib-only-treated groups. No benefit was achieved in MDA-MB-231 xenografts with the addition of cetuximab, likely due to its KRAS-mutated status. Conclusions Cetuximab PET can monitor effects of dasatinib on EGFR cellular distribution and potentially inform treatment response in wild-type KRAS TNBC.
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Affiliation(s)
- Brooke N McKnight
- Department of Oncology, Karmanos Cancer Institute Wayne State University, 4100 John R Street, Detroit, MI, 48201, USA
| | - Seongho Kim
- Department of Oncology, Biostatistics Core, Karmanos Cancer Institute Wayne State University, Detroit, MI, 48201, USA
| | - Julie L Boerner
- Department of Oncology, Karmanos Cancer Institute Wayne State University, 4100 John R Street, Detroit, MI, 48201, USA
| | - Nerissa T Viola
- Department of Oncology, Karmanos Cancer Institute Wayne State University, 4100 John R Street, Detroit, MI, 48201, USA.
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16
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Islam MS, Dasgupta H, Basu M, Roy A, Alam N, Roychoudhury S, Kumar Panda C. Reduction of nuclear Y654-p-β-catenin expression through SH3GL2-meditated downregulation of EGFR in chemotolerance TNBC: Clinical and prognostic importance. J Cell Physiol 2020; 235:8114-8128. [PMID: 31960967 DOI: 10.1002/jcp.29466] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 01/07/2020] [Indexed: 12/11/2022]
Abstract
Triple negative breast cancer (TNBC) originates from a less differentiated ductal cell of breast, which is less sensitive to chemotherapy. The chemotolerance mechanism of TNBC has not yet been studied in detail. For this reason, molecular profiles (expression/genetic/epigenetic) of Y654-p-β-catenin (active) and its kinase epidermal growth factor receptor (EGFR) along with SH3GL2 (regulator of EGFR homeostasis) were compared between neoadjuvant chemotherapy treated (NACT) and pretherapeutic TNBC samples. Reduced nuclear expression of Y654-p-β-catenin protein with low proliferation index and CD44 prevalence showed concordance with reduced expression of EGFR/Y1045-p-EGFR proteins in the NACT samples than the pretherapeutic TNBC samples. Infrequent messenger RNA expression, gene amplification (10-32.5%), and mutation (1%) of EGFR were seen in the TNBC samples irrespective of therapy, suggesting the importance of EGFR protein stabilization in this tumor. The upregulation of SH3GL2 seen in the NACT samples in contrast to the pretherapeutic samples might be due to its promoter hypomethylation, as seen in the quantitative methylation assay. A similar trend of upregulation of SH3GL2 and downregulation of EGFR, Y1045-p-EGFR, Y654-p-β-catenin were seen in the MDA-MB-231 cell line using antharacycline antitumor drugs (doxorubicin/nogalamycin). The NACT patients with reduced expression of Y654-p-β-catenin and/or EGFR and high expression of SH3GL2 showed comparatively better prognosis than the pretherapeutic patients. Thus, our study showed that reduced nuclear expression of Y654-p-β-catenin in NACT samples due to downregulation of EGFR protein through promoter hypomethylation-mediated upregulation of SH3GL2, resulting in low proliferation index/CD44 prevalence with better prognosis of the NACT patients, might have an important role in the chemotolerance of TNBC.
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Affiliation(s)
- Md Saimul Islam
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Hemantika Dasgupta
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Mukta Basu
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Anup Roy
- Department of Pathology, Nil Ratan Sircar Medical College and Hospital, Kolkata, West Bengal, India
| | - Neyaz Alam
- Department of Surgical Oncology, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
| | - Susanta Roychoudhury
- Molecular Biology and Basic Research Division, Saroj Gupta Cancer Centre and Research Institute, Kolkata, West Bengal, India
| | - Chinmay Kumar Panda
- Department of Oncogene Regulation, Chittaranjan National Cancer Institute, Kolkata, West Bengal, India
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17
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EGFR-specific CAR-T cells trigger cell lysis in EGFR-positive TNBC. Aging (Albany NY) 2019; 11:11054-11072. [PMID: 31804974 PMCID: PMC6932924 DOI: 10.18632/aging.102510] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 11/18/2019] [Indexed: 12/31/2022]
Abstract
Triple-negative breast cancer (TNBC) is an aggressive cancer subtype for which effective therapies are lacking. Epidermal growth factor receptor (EGFR) is overexpressed in various types of TNBC cells, and several EGFR-specific immunotherapies have been used to treat cancer patients. Chimeric antigen receptor engineered T (CAR-T) cells have also been used as cancer therapies. In this study, we generated two types of EGFR-specific CAR-modified T cells using lentiviral vectors with DNA sequences encoding the scFv regions of two anti-EGFR antibodies. The cytotoxic and antitumor effects of these CAR-modified T cells were examined in cytokine release and cytotoxicity assays in vitro and in tumor growth assays in TNBC cell line- and patient-derived xenograft mouse models. Both types of EGFR-specific CAR-T cells were activated by high-EGFR-expressing TNBC cells and specifically triggered TNBC cell lysis in vitro. Additionally, the CAR-T cells inhibited growth of cell-line- and patient-derived xenograft TNBC tumors in mice. These results suggest that EGFR-specific CAR-T cells might be a promising therapeutic strategy in patients with high-EGFR-expressing TNBC.
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18
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Sabatier R, Lopez M, Guille A, Billon E, Carbuccia N, Garnier S, Adelaide J, Extra JM, Cappiello MA, Charafe-Jauffret E, Pakradouni J, Viens P, Gonçalves A, Chaffanet M, Birnbaum D, Bertucci F. High Response to Cetuximab in a Patient With EGFR-Amplified Heavily Pretreated Metastatic Triple-Negative Breast Cancer. JCO Precis Oncol 2019; 3:1-8. [DOI: 10.1200/po.18.00310] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Renaud Sabatier
- Aix-Marseille University, Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, and Institut Paoli-Calmettes, Marseille, France
- Institut Paoli-Calmettes, Marseille, France
| | - Marc Lopez
- Aix-Marseille University, Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, and Institut Paoli-Calmettes, Marseille, France
| | - Arnaud Guille
- Aix-Marseille University, Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, and Institut Paoli-Calmettes, Marseille, France
| | - Emilien Billon
- Aix-Marseille University, Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, and Institut Paoli-Calmettes, Marseille, France
| | - Nadine Carbuccia
- Aix-Marseille University, Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, and Institut Paoli-Calmettes, Marseille, France
| | - Séverine Garnier
- Aix-Marseille University, Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, and Institut Paoli-Calmettes, Marseille, France
| | - José Adelaide
- Aix-Marseille University, Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, and Institut Paoli-Calmettes, Marseille, France
| | | | | | - Emmanuelle Charafe-Jauffret
- Aix-Marseille University, Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, and Institut Paoli-Calmettes, Marseille, France
| | | | - Patrice Viens
- Aix-Marseille University, Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, and Institut Paoli-Calmettes, Marseille, France
| | - Anthony Gonçalves
- Aix-Marseille University, Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, and Institut Paoli-Calmettes, Marseille, France
| | - Max Chaffanet
- Aix-Marseille University, Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, and Institut Paoli-Calmettes, Marseille, France
| | - Daniel Birnbaum
- Aix-Marseille University, Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, and Institut Paoli-Calmettes, Marseille, France
| | - François Bertucci
- Aix-Marseille University, Centre de Recherche en Cancérologie de Marseille, Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, and Institut Paoli-Calmettes, Marseille, France
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19
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Lai JI, Reddy AK, Newberg JY, Montesion M, Chang PMH. High-Grade Salivary Gland Ductal Carcinoma With Unusual EGFR Amplification Responsive to Afatinib. JCO Precis Oncol 2019; 3:1-5. [PMID: 35100713 DOI: 10.1200/po.19.00186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Jiun-I Lai
- National Yang-Ming University, Taipei, Republic of China
- Taipei Veterans General Hospital, Taipei, Republic of China
| | | | | | | | - Peter Mu-Hsin Chang
- National Yang-Ming University, Taipei, Republic of China
- Taipei Veterans General Hospital, Taipei, Republic of China
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20
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McLaughlin RP, He J, van der Noord VE, Redel J, Foekens JA, Martens JWM, Smid M, Zhang Y, van de Water B. A kinase inhibitor screen identifies a dual cdc7/CDK9 inhibitor to sensitise triple-negative breast cancer to EGFR-targeted therapy. Breast Cancer Res 2019; 21:77. [PMID: 31262335 PMCID: PMC6604188 DOI: 10.1186/s13058-019-1161-9] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 06/11/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The effective treatment of triple-negative breast cancer (TNBC) remains a profound clinical challenge. Despite frequent epidermal growth factor receptor (EGFR) overexpression and reliance on downstream signalling pathways in TNBC, resistance to EGFR-tyrosine kinase inhibitors (TKIs) remains endemic. Therefore, the identification of targeted agents, which synergise with current therapeutic options, is paramount. METHODS Compound-based, high-throughput, proliferation screening was used to profile the response of TNBC cell lines to EGFR-TKIs, western blotting and siRNA transfection being used to examine the effect of inhibitors on EGFR-mediated signal transduction and cellular dependence on such pathways, respectively. A kinase inhibitor combination screen was used to identify compounds that synergised with EGFR-TKIs in TNBC, utilising sulphorhodamine B (SRB) assay as read-out for proliferation. The impact of drug combinations on cell cycle arrest, apoptosis and signal transduction was assessed using flow cytometry, automated live-cell imaging and western blotting, respectively. RNA sequencing was employed to unravel transcriptomic changes elicited by this synergistic combination and to permit identification of the signalling networks most sensitive to co-inhibition. RESULTS We demonstrate that a dual cdc7/CDK9 inhibitor, PHA-767491, synergises with multiple EGFR-TKIs (lapatinib, erlotinib and gefitinib) to overcome resistance to EGFR-targeted therapy in various TNBC cell lines. Combined inhibition of EGFR and cdc7/CDK9 resulted in reduced cell proliferation, accompanied by induction of apoptosis, G2-M cell cycle arrest, inhibition of DNA replication and abrogation of CDK9-mediated transcriptional elongation, in contrast to mono-inhibition. Moreover, high expression of cdc7 and RNA polymerase II Subunit A (POLR2A), the direct target of CDK9, is significantly correlated with poor metastasis-free survival in a cohort of breast cancer patients. RNA sequencing revealed marked downregulation of pathways governing proliferation, transcription and cell survival in TNBC cells treated with the combination of an EGFR-TKI and a dual cdc7/CDK9 inhibitor. A number of genes enriched in these downregulated pathways are associated with poor metastasis-free survival in TNBC. CONCLUSIONS Our results highlight that dual inhibition of cdc7 and CDK9 by PHA-767491 is a potential strategy for targeting TNBC resistant to EGFR-TKIs.
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Affiliation(s)
- Ronan P. McLaughlin
- Department of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, 2300 RA Leiden, The Netherlands
| | - Jichao He
- Department of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, 2300 RA Leiden, The Netherlands
| | - Vera E. van der Noord
- Department of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, 2300 RA Leiden, The Netherlands
| | - Jevin Redel
- Department of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, 2300 RA Leiden, The Netherlands
| | - John A. Foekens
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - John W. M. Martens
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Marcel Smid
- Department of Medical Oncology and Cancer Genomics Netherlands, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Yinghui Zhang
- Department of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, 2300 RA Leiden, The Netherlands
| | - Bob van de Water
- Department of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, 2300 RA Leiden, The Netherlands
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21
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Epidermal growth factor receptor (EGFR) overexpression in triple-negative breast cancer: association with clinicopathologic features and prognostic parameters. SURGICAL AND EXPERIMENTAL PATHOLOGY 2019. [DOI: 10.1186/s42047-018-0029-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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22
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Anti-EGFR monoclonal antibodies and EGFR tyrosine kinase inhibitors as combination therapy for triple-negative breast cancer. Oncotarget 2018; 7:73618-73637. [PMID: 27655662 PMCID: PMC5342003 DOI: 10.18632/oncotarget.12037] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 08/22/2016] [Indexed: 12/31/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is characterized by overexpression of epidermal growth factor receptor (EGFR) and activation of its downstream signaling pathways. Dual targeting of EGFR using one monoclonal antibody (mAb; cetuximab or panitumumab) and one tyrosine kinase inhibitor (EGFR-TKI; gefitinib or erlotinib) is a potential therapeutic approach. We investigated the effect of these therapies in EGFR-expressing TNBC cell lines that do or do not harbor the main activating mutations of EGFR pathways. Cell lines were sensitive to EGFR-TKIs, whereas mAbs were active only in MDA-MB-468 (EGFR amplification) and SUM-1315 (KRAS and PTEN wild-type) cells. MDA-MB-231 (KRAS mutated) and HCC-1937 (PTEN deletion) cells were resistant to mAbs. The combined treatment resulted in a synergistic effect on cell proliferation and superior inhibition of the RAS/MAPK signaling pathway in mAb-sensitive cells. The anti-proliferative effect was associated with G1 cell cycle arrest followed by apoptosis. Sensitivity to therapies was characterized by induction of positive regulators and inactivation of negative regulators of cell cycle. These results suggest that dual EGFR inhibition might result in an enhanced antitumor effect in a subgroup of TNBC. The status of EGFR, KRAS and PTEN could be used as a molecular marker for predicting the response to this therapeutic strategy.
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23
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Levva S, Kotoula V, Kostopoulos I, Manousou K, Papadimitriou C, Papadopoulou K, Lakis S, Koukoulias K, Karavasilis V, Pentheroudakis G, Balassi E, Zagouri F, Kaklamanos IG, Pectasides D, Razis E, Aravantinos G, Papakostas P, Bafaloukos D, Rallis G, Gogas H, Fountzilas G. Prognostic Evaluation of Epidermal Growth Factor Receptor (EGFR) Genotype and Phenotype Parameters in Triple-negative Breast Cancers. Cancer Genomics Proteomics 2018; 14:181-195. [PMID: 28446533 DOI: 10.21873/cgp.20030] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/23/2017] [Accepted: 03/27/2017] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Epidermal growth factor receptor (EGFR) aberrations have been implicated in the pathogenesis of triple-negative breast cancer (TNBC) but their impact on prognosis and, therefore, druggability, remain controversial. Herein, we studied EGFR aberrations at different molecular levels and assessed their prognostic impact in patients with operable TNBC treated with adjuvant anthracycline-based chemotherapy. MATERIALS AND METHODS We evaluated the prognostic impact of EGFR gene status by fluorescent in situ hybridization (FISH), EGFR coding mutations by Sanger and next-generation sequencing, relative EGFR messenger RNA (mRNA) levels by qPCR (upper quartile) and EGFR and p53 protein expression by immunohistochemistry (IHC), in 352 centrally-assessed tumors from an equal number of TNBC patients. RESULTS Approximately 53.5% of the tumors expressed EGFR, 59.3% p53 and 35.9% both EGFR and p53 proteins; 4.1% showed EGFR gene amplification and 4.4% carried EGFR mutations. The latter were located outside the druggable kinase domain region and presented at low frequencies. Amplification and mutations overlapped only in one case of glycogen-rich carcinoma. EGFR and CEN7 copies were higher in tumors from older patients (p=0.002 and p=0.003, respectively). Patients with amplified tumors (n=11) had excellent prognosis (0 relapses and deaths). Upon multivariate analysis, high EGFR copies conferred significantly favorable disease-free survival (HR=0.57, 95% CI 0.36-0.90, Wald's p=0.017) and high CEN7 copies favorable overall survival (HR=0.49, 95% CI=0.29-0.83, Wald's p=0.008). Patients with EGFR-/p53+ and EGFR+/p53- tumors had significantly higher risk for relapse than those with EGFR-/p53- and EGFR+/p53+ tumors (HR=1.73, 95% CI=1.12-2.67, Wald's p=0.013). CONCLUSION EGFR gene amplification and mutations are rare in TNBC, the latter of no apparent clinical relevance. Surrogate markers of EGFR-related chromosomal aberrations and combined EGFR/p53 IHC phenotypes appear to be associated with favorable prognosis in patients with operable TNBC receiving conventional adjuvant chemotherapy.
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Affiliation(s)
- Sofia Levva
- Department of Medical Oncology, Papageorgiou Hospital, Aristotle University of Thessaloniki, School of Health Sciences, Faculty of Medicine, Thessaloniki, Greece
| | - Vassiliki Kotoula
- Department of Pathology, Aristotle University of Thessaloniki, School of Health Sciences, Faculty of Medicine, Thessaloniki, Greece.,Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research/Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Kostopoulos
- Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research/Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Kyriaki Manousou
- Section of Biostatistics, Hellenic Cooperative Oncology Group, Data Office, Athens, Greece
| | - Christos Papadimitriou
- Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
| | - Kyriaki Papadopoulou
- Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research/Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Sotiris Lakis
- Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research/Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Kyriakos Koukoulias
- Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research/Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Vasilios Karavasilis
- Department of Medical Oncology, Papageorgiou Hospital, Aristotle University of Thessaloniki, School of Health Sciences, Faculty of Medicine, Thessaloniki, Greece
| | | | - Eufemia Balassi
- Department of Pathology, Hatzikosta Hospital, Ioannina, Greece
| | - Flora Zagouri
- Department of Clinical Therapeutics, Alexandra Hospital, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
| | - Ioannis G Kaklamanos
- Department of Surgery, Agii Anargiri Hospital, University of Athens, School of Health Sciences, Athens, Greece
| | - Dimitrios Pectasides
- Oncology Section, Second Department of Internal Medicine, Hippokration Hospital, Athens, Greece
| | - Evangelia Razis
- Third Department of Medical Oncology, Hygeia Hospital, Athens, Greece
| | - Gerasimos Aravantinos
- Second Department of Medical Oncology, Agii Anargiri Cancer Hospital, Athens, Greece
| | | | | | - Grigorios Rallis
- Department of Medical Oncology, Papageorgiou Hospital, Aristotle University of Thessaloniki, School of Health Sciences, Faculty of Medicine, Thessaloniki, Greece
| | - Helen Gogas
- First Department of Medicine, Laiko General Hospital, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
| | - George Fountzilas
- Laboratory of Molecular Oncology, Hellenic Foundation for Cancer Research/Aristotle University of Thessaloniki, Thessaloniki, Greece.,Aristotle University of Thessaloniki, Thessaloniki, Greece
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Liu X, Feng C, Liu J, Liu J, Li C, Xu C, Niu Y. The importance of EGFR as a biomarker in molecular apocrine breast cancer. Hum Pathol 2018; 77:1-10. [PMID: 29409930 DOI: 10.1016/j.humpath.2018.01.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 01/14/2018] [Accepted: 01/19/2018] [Indexed: 11/18/2022]
Abstract
Molecular apocrine breast cancer (MABC) is a molecular subtype with a poor prognosis, and there is urgent need to find new therapeutic targets. Epidermal growth factor receptor (EGFR) plays an important part in regulating the biological behavior of tumor cells, and EGFR-targeted drugs have already been used in therapy for lung and colorectal cancers. The purpose of this study was to analyze the significance of EGFR expression in MABC. A total of 400 patients with invasive breast cancer were analyzed, including 200 MABC and 200 non-MABC cases. Immunohistochemistry and immunofluorescence were carried out to evaluate the expression of estrogen receptor, progesterone receptor, androgen receptor (AR), EGFR, epidermal growth factor receptor 2 (HER2), and other biomarkers. Two hundred twelve (53%) cases were positive for EGFR expression, including 173 MABC and 39 non-MABC cases. EGFR expression was positively associated with AR expression in MABC, as well as with more advanced tumor stage and high Ki67 expression. Patients with EGFR expression had worse outcomes than those without. As a prognosis biomarker, EGFR was significantly associated with poorer clinical outcomes, and the co-expression of EGFR and HER2 often predicted worse outcomes in MABC. This study suggests that the identification of new targets such as HER2 and EGFR may help with assessing the prognosis of patients with MABC. Using both AR and EGFR as therapeutic targets may be especially important in MABC and may help to guide the choice of suitable treatments for individual breast cancer patients.
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Affiliation(s)
- Xiaozhen Liu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Ti Yuan Bei, Hexi District, Tianjin 300060, China
| | - Changyun Feng
- Department of Maternal and Child Health Hospital of Linyi, Luozhuang District, Linyi 276016, China
| | - Junjun Liu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Ti Yuan Bei, Hexi District, Tianjin 300060, China
| | - Jian Liu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Ti Yuan Bei, Hexi District, Tianjin 300060, China
| | - Congying Li
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Ti Yuan Bei, Hexi District, Tianjin 300060, China
| | - Cong Xu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Ti Yuan Bei, Hexi District, Tianjin 300060, China
| | - Yun Niu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Ti Yuan Bei, Hexi District, Tianjin 300060, China.
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25
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FAM83 proteins: Fostering new interactions to drive oncogenic signaling and therapeutic resistance. Oncotarget 2018; 7:52597-52612. [PMID: 27221039 PMCID: PMC5239576 DOI: 10.18632/oncotarget.9544] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 05/11/2016] [Indexed: 12/14/2022] Open
Abstract
The FAM83 proteins were recently identified as novel transforming oncogenes that function as intermediaries in EGFR/RAS signaling. Using two distinct forward genetics screens, the Bissell and Jackson laboratories uncovered the importance of the FAM83 proteins in promoting resistance to EGFR tyrosine kinase inhibitors and therapies targeting downstream EGFR signaling effectors. The discovery of this novel oncogene family using distinct genetic screens provides compelling evidence that the FAM83 proteins are key oncogenic players in cancer-associated signaling when they are overexpressed or dysregulated. Consistent with a role in oncogenic transformation, the FAM83 genes are frequently overexpressed in diverse human cancer specimens. Importantly, ablation of numerous FAM83 members results in a marked suppression of cancer-associated signaling and loss of tumorigenic potential. Here, we review the current knowledge of the FAM83 proteins’ involvement in cancer signaling and discuss the potential mechanisms by which they contribute to tumorigenesis. Both redundant activities shared by all 8 FAM83 members and non-redundant activities unique to each member are highlighted. We discuss the promise and challenges of the FAM83 proteins as novel points of attack for future cancer therapies.
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26
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Kim A, Jang MH, Lee SJ, Bae YK. Mutations of the Epidermal Growth Factor Receptor Gene in Triple-Negative Breast Cancer. J Breast Cancer 2017; 20:150-159. [PMID: 28690651 PMCID: PMC5500398 DOI: 10.4048/jbc.2017.20.2.150] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 02/22/2017] [Indexed: 01/07/2023] Open
Abstract
Purpose Epidermal growth factor receptor (EGFR) is considered a potential therapeutic target for anti-EGFR therapy in triple-negative breast cancer (TNBC). However, the frequency of EGFR gene mutation in TNBC is low and varies with ethnicity. This study aimed to investigate the incidence of EGFR gene mutation in TNBC. Methods EGFR protein expression was evaluated by immunohistochemistry in tissue microarrays of 493 TNBC cases using four different primary antibodies, which included mutation-specific antibodies. For cases with an immunoreactivity level ≥1+, we performed pyrosequencing analysis for EGFR gene mutation. A case was considered mutation-positive when its mutation frequency minus its limit of detection (LOD) was >10%. Cases with mutation frequency higher than LOD were assessed for EGFR gene mutation status using the Cobas assay and by peptide nucleic acid-mediated polymerase chain reaction (PNA-clamping). Results Among 493 TNBCs, 148 (30.0%) exhibited staining ≥1+ for EGFR, including 78 with 1+, 49 with 2+, and 21 with 3+. Positive EGFR expression (≥2+) was significantly associated with lymphovascular invasion (p=0.010), but not with overall survival (p=0.444) or disease-free survival (p=0.388). None of the 493 TNBCs harbored an EGFR gene mutation. Among 148 cases with an EGFR staining result ≥1+, five (3.4%) showed mutation frequencies (4.4%–10.9%) higher than LOD (2.6%–4.3%) in exons 19 (L747_P753>Q) or 21 (L858R and L861Q) as determined by pyrosequencing. However, Cobas and PNA-clamping failed to detect the presence of EGFR gene mutation in these five cases. Conclusion No activating mutation of EGFR gene of clinical significance was observed in 148 TNBC cases using three commercially available methods. Thus, EGFR gene mutation appears to be an extremely rare event in patients with TNBC.
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Affiliation(s)
- Aeri Kim
- Department of Pathology, Daegu Fatima Hospital, Daegu, Korea
| | - Min Hye Jang
- Department of Pathology, Yeungnam University College of Medicine, Daegu, Korea
| | - Soo Jung Lee
- Department of Surgery, Yeungnam University College of Medicine, Daegu, Korea
| | - Young Kyung Bae
- Department of Pathology, Yeungnam University College of Medicine, Daegu, Korea
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27
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Powell CA, Nasser MW, Zhao H, Wochna JC, Zhang X, Shapiro C, Shilo K, Ganju RK. Fatty acid binding protein 5 promotes metastatic potential of triple negative breast cancer cells through enhancing epidermal growth factor receptor stability. Oncotarget 2016; 6:6373-85. [PMID: 25779666 PMCID: PMC4467443 DOI: 10.18632/oncotarget.3442] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 01/12/2015] [Indexed: 12/31/2022] Open
Abstract
Fatty acid binding protein 5 (FABP5), an intracellular lipid binding protein, has been shown to play a role in various cancers, including breast cancer. However, FABP5 and its role in triple negative breast cancer (TNBC) have not been studied. We show FABP5 protein expression correlates with TNBC, high grade tumors, and worse disease-free survival in a tissue microarray containing 423 breast cancer patient samples. High FABP5 expression significantly correlates with epidermal growth factor receptor (EGFR) expression in these samples. Decreased tumor growth and lung metastasis were observed in FABP5-/- mice othotopically injected with murine breast cancer cells. FABP5 loss in TNBC tumor cells inhibited motility and invasion. Mechanistic studies revealed that FABP5 knockdown in TNBC cells results in decreased EGFR expression and FABP5 is important for EGF-induced metastatic signaling. Loss of FABP5 leads to proteasomal targeting of EGFR. Our studies show that FABP5 has a role in both host and tumor cell during breast cancer progression. These findings suggest that FABP5 mediates its enhanced effect on TNBC metastasis, in part, through EGFR, by inhibiting EGFR proteasomal degradation. These studies show, for the first time, a correlation between FABP5 and EGFR in enhancing TNBC metastasis through a novel mechanism.
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Affiliation(s)
| | - Mohd W Nasser
- Department of Pathology, The Ohio State University, Columbus, OH, USA
| | - Helong Zhao
- Department of Pathology, The Ohio State University, Columbus, OH, USA
| | - Jacob C Wochna
- Department of Pathology, The Ohio State University, Columbus, OH, USA
| | - Xiaoli Zhang
- Center for Biostatistics, The Ohio State University, Columbus, OH, USA
| | - Charles Shapiro
- Tisch Cancer Institute, Mount Sinai School of Medicine, New York, USA
| | - Konstantin Shilo
- Department of Pathology, The Ohio State University, Columbus, OH, USA
| | - Ramesh K Ganju
- Department of Pathology, The Ohio State University, Columbus, OH, USA
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28
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High EGFR protein expression and exon 9 PIK3CA mutations are independent prognostic factors in triple negative breast cancers. BMC Cancer 2015; 15:986. [PMID: 26680641 PMCID: PMC4683760 DOI: 10.1186/s12885-015-1977-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 12/05/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Triple negative breast cancers (TNBC) are a more aggressive subset of breast cancer. A better understanding of its biology could allow the rational development of targeted therapies. METHODS We extensively analyzed the EGFR/PI3K/PTEN axis in a large, homogeneous population of TNBC to help defining the putative role of anti-EGFR and -PI3K targeted therapies in this setting. EGFR gene amplification, EGFR protein expression, PIK3CA and PTEN gene alterations (two members of EGFR downstream pathways) and their clinicopathological and prognostic implications were analyzed in 204 TNBC samples from European patients. RESULTS EGFR amplification was detected in 18 of the 204 TNBC specimens (8.9 %) and was significantly associated with higher EGFR protein levels. Fourteen PIK3CA mutations were identified in exon 9 (6.7 %), and 17 in exon 20 (8.3 %). PIK3CA mutations, especially in exon 9, were significantly associated with grade I-II tumors. PTEN deletions were detected in 43 samples (21.50 %) and were significantly associated with grade III tumors (p < 0.001). Univariate analysis showed a significant association between relapse-free survival (RFS), T and N stage and exon 9 PIK3CA mutations. Overall survival was significantly associated with T stage, N stage and adjuvant chemotherapy, which was administered to 70.3 % of patients. In multivariate analyses, T stage, N stage, presence of exon 9 PIK3CA mutations and high EGFR protein level were independent poor prognostic factors for RFS, while adjuvant chemotherapy was associated with a better outcome. CONCLUSIONS High EGFR protein expression and exon 9 PIK3CA activating mutations are independent prognostic factors in TNBC. The efficacy of anti-PI3K targeted therapies needs to be evaluated in this setting.
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Cossu-Rocca P, Orrù S, Muroni MR, Sanges F, Sotgiu G, Ena S, Pira G, Murgia L, Manca A, Uras MG, Sarobba MG, Urru S, De Miglio MR. Analysis of PIK3CA Mutations and Activation Pathways in Triple Negative Breast Cancer. PLoS One 2015; 10:e0141763. [PMID: 26540293 PMCID: PMC4634768 DOI: 10.1371/journal.pone.0141763] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 10/12/2015] [Indexed: 12/19/2022] Open
Abstract
Background Triple Negative Breast Cancer (TNBC) accounts for 12–24% of all breast carcinomas, and shows worse prognosis compared to other breast cancer subtypes. Molecular studies demonstrated that TNBCs are a heterogeneous group of tumors with different clinical and pathologic features, prognosis, genetic-molecular alterations and treatment responsivity. The PI3K/AKT is a major pathway involved in the regulation of cell survival and proliferation, and is the most frequently altered pathway in breast cancer, apparently with different biologic impact on specific cancer subtypes. The most common genetic abnormality is represented by PIK3CA gene activating mutations, with an overall frequency of 20–40%. The aims of our study were to investigate PIK3CA gene mutations on a large series of TNBC, to perform a wider analysis on genetic alterations involving PI3K/AKT and BRAF/RAS/MAPK pathways and to correlate the results with clinical-pathologic data. Materials and Methods PIK3CA mutation analysis was performed by using cobas® PIK3CA Mutation Test. EGFR, AKT1, BRAF, and KRAS genes were analyzed by sequencing. Immunohistochemistry was carried out to identify PTEN loss and to investigate for PI3K/AKT pathways components. Results PIK3CA mutations were detected in 23.7% of TNBC, whereas no mutations were identified in EGFR, AKT1, BRAF, and KRAS genes. Moreover, we observed PTEN loss in 11.3% of tumors. Deregulation of PI3K/AKT pathways was revealed by consistent activation of pAKT and p-p44/42 MAPK in all PIK3CA mutated TNBC. Conclusions Our data shows that PIK3CA mutations and PI3K/AKT pathway activation are common events in TNBC. A deeper investigation on specific TNBC genomic abnormalities might be helpful in order to select patients who would benefit from current targeted therapy strategies.
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Affiliation(s)
- Paolo Cossu-Rocca
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
- * E-mail:
| | - Sandra Orrù
- Department of Pathology, “A. Businco” Oncologic Hospital, ASL Cagliari, Cagliari, Italy
| | - Maria Rosaria Muroni
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - Francesca Sanges
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - Giovanni Sotgiu
- Epidemiology and Medical Statistics Unit, Department of Biomedical Sciences, University of Sassari, Research, Medical Education and Professional Development Unit, AOU Sassari, Sassari, Italy
| | - Sara Ena
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Giovanna Pira
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Luciano Murgia
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | | | | | | | - Silvana Urru
- Biomedicine Sector, Center for Advanced Studies, Research and Development in Sardinia Technology Park Polaris, Cagliari, Italy
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Bemanian V, Sauer T, Touma J, Lindstedt BA, Chen Y, Ødegård HP, Vetvik KM, Bukholm IR, Geisler J. The epidermal growth factor receptor (EGFR / HER-1) gatekeeper mutation T790M is present in European patients with early breast cancer. PLoS One 2015; 10:e0134398. [PMID: 26267891 PMCID: PMC4534377 DOI: 10.1371/journal.pone.0134398] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 07/08/2015] [Indexed: 02/03/2023] Open
Abstract
The epidermal growth factor receptor (EGFR) is one of the major oncogenes identified in a variety of human malignancies including breast cancer (BC). EGFR-mutations have been studied in lung cancer for some years and are established as important markers in guiding therapy with tyrosine kinase inhibitors (TKIs). In contrast, EGFR-mutations have been reported to be rare if not absent in human BC, although recent evidence has suggested a significant worldwide variation in somatic EGFR-mutations. Therefore, we investigated the presence of EGFR-mutations in 131 norwegian patients diagnosed with early breast cancer using real-time PCR methods. In the present study we identified three patients with an EGFR-T790M-mutation. The PCR-findings were confirmed by direct Sanger sequencing. Two patients had triple-negative BC (TNBC) while the third was classified as luminal-A subtype. The difference in incidence of T790M mutations comparing the TNBC subgroup with the other BC subgroups was statistical significant (P = 0.023). No other EGFR mutations were identified in the entire cohort. Interestingly, none of the patients had received any previous cancer treatment. To our best knowledge, the EGFR-T790M-TKI-resistance mutation has not been previously detected in breast cancer patients. Our findings contrast with the observations made in lung cancer patients where the EGFR-T790M-mutation is classified as a typical „second mutation”causing resistance to TKI-therapy during ongoing anticancer therapy. In conclusion, we have demonstrated for the first time that the EGFR-T790M-mutation occurs in primary human breast cancer patients. In the present study the EGFR-T790M mutation was not accompanied by any simultaneous EGFR-activating mutation.
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Affiliation(s)
- Vahid Bemanian
- Department of Gene Technology, Akershus University Hospital, Lørenskog, Norway
- University of Oslo, Institute of Clinical Medicine, Campus at Akershus University Hospital, Lørenskog, Norway
| | - Torill Sauer
- University of Oslo, Institute of Clinical Medicine, Campus at Akershus University Hospital, Lørenskog, Norway
- Department of Pathology, Akershus University Hospital, Lørenskog, Norway
| | - Joel Touma
- Department of Breast- and Endocrine Surgery, Akershus University Hospital, Lørenskog, Norway
| | - Bjørn Arne Lindstedt
- Department of Gene Technology, Akershus University Hospital, Lørenskog, Norway
- University of Oslo, Institute of Clinical Medicine, Campus at Akershus University Hospital, Lørenskog, Norway
| | - Ying Chen
- Department of Pathology, Akershus University Hospital, Lørenskog, Norway
| | | | - Katja Marjaana Vetvik
- Department of Breast- and Endocrine Surgery, Akershus University Hospital, Lørenskog, Norway
| | - Ida Rashida Bukholm
- University of Oslo, Institute of Clinical Medicine, Campus at Akershus University Hospital, Lørenskog, Norway
- Department of Breast- and Endocrine Surgery, Akershus University Hospital, Lørenskog, Norway
| | - Jürgen Geisler
- University of Oslo, Institute of Clinical Medicine, Campus at Akershus University Hospital, Lørenskog, Norway
- Department of Oncology, Akershus University Hospital, Lørenskog, Norway
- * E-mail:
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Wang JG, Yu J, Hu JL, Yang WL, Ren H, Ding D, Zhang L, Liu XP. Neurokinin-1 activation affects EGFR related signal transduction in triple negative breast cancer. Cell Signal 2015; 27:1315-24. [DOI: 10.1016/j.cellsig.2015.03.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Revised: 02/27/2015] [Accepted: 03/10/2015] [Indexed: 01/30/2023]
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Andey T, Sudhakar G, Marepally S, Patel A, Banerjee R, Singh M. Lipid nanocarriers of a lipid-conjugated estrogenic derivative inhibit tumor growth and enhance cisplatin activity against triple-negative breast cancer: pharmacokinetic and efficacy evaluation. Mol Pharm 2015; 12:1105-20. [PMID: 25661724 DOI: 10.1021/mp5008629] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Breast cancer is the leading cause of malignancies among women globally. The triple negative breast cancer (TNBC) subtype is the most difficult to treat and accounts for 15% of all cases. Targeted therapies have been developed for TNBC but come short of clinical translation due to acquired tumor resistance. An effective therapy against TNBC must combine properties of target specificity, efficient tumor killing, and translational relevance. The objective of this study was to formulate a nontoxic, cationic, lipid-conjugated estrogenic derivative (ESC8), with demonstrated anticancer activity, for oral delivery in mice bearing triple negative breast cancer (TNBC) as xenograft tumors. The in vitro cell viability, Caco-2 permeability, and cell cycle dynamics of ESC8-treated TNBC cells were investigated. ESC8 was formulated as liposomes, solid lipid nanoparticles (SLNs), and nanostructured lipid carriers (NLCs) and characterized for size, zeta potential, entrapment efficiency, size stability, and tumor biodistribution. Pharmacokinetic modeling of plasma concentration-time course data was carried out following intravenous and oral administration in Sprague-Dawley rats. In vivo efficacy investigation of ESC8-SLNC was carried out in Nu/Nu mice bearing MDA-MB-231 TNBC as xenograft tumors, and the molecular dynamics modulating tumor growth inhibition was analyzed by Western blot. In vitro ESC8 inhibited TNBC and non-TNBC cell viability with IC50 ranging from 1.81 to 3.33 μM. ESC8 was superior to tamoxifen and Cisplatin in inhibiting MDA-MB-231 cell viability; and at 2.0 μM ESC8 enhanced Cisplatin cytotoxicity 16-fold. Intravenous ESC8 (2.0 mg/kg) was eliminated at a rate of 0.048 ± 0.01 h(-1) with a half-life of 14.63 ± 2.95 h in rats. ESC8 was orally bioavailable (47.03%) as solid lipid nanoparticles (ESC8-SLN). ESC8-SLN (10 mg/kg/day, ×14 days, p.o.) inhibited breast tumor growth by 74% (P < 0.0001 vs control) in mice bearing MDA-MB-231 cells as xenografts; and when given in combination with Cisplatin (2.0 mg/kg/biweekly, ×2 weeks, IV), tumor growth was inhibited by 87% (P = 0.0002, vs ESC8-SLN; 10 mg/kg/day, ×14 days, p.o). ESC8-SLN tumor growth inhibition was associated with increased expression of p21 and Caspase-9; as well as by inhibition of EGFR, Slug, p-Akt1, Vimentin, NFkβ, and IKKγ. These results show the promise of ESC8 as an oral adjuvant or neoadjuvant against triple negative breast cancer.
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Affiliation(s)
- Terrick Andey
- †Department of Pharmaceutical Sciences, School of Pharmacy, Massachusetts College of Pharmacy and Health Sciences, 19 Foster Street, Worcester, Massachusetts 01608, United States
| | - Godeshala Sudhakar
- ‡Biomaterials Group, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, Andhra Pradesh 500007, India
| | - Srujan Marepally
- §Institute for Stem Cell Biology and Regenerative Medicine (inStem), NCBS-TIFR, UAS-GKVK, Bengaluru, Karnataka 560067, India
| | | | - Rajkumar Banerjee
- ‡Biomaterials Group, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, Andhra Pradesh 500007, India
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