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Li Y, Dong J, Qin JJ. Small molecule inhibitors targeting heat shock protein 90: An updated review. Eur J Med Chem 2024; 275:116562. [PMID: 38865742 DOI: 10.1016/j.ejmech.2024.116562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/10/2024] [Accepted: 05/31/2024] [Indexed: 06/14/2024]
Abstract
As a molecular chaperone, heat shock protein 90 (HSP90) plays important roles in the folding, stabilization, activation, and degradation of over 500 client proteins, and is extensively involved in cell signaling, proliferation, and survival. Thus, it has emerged as an important target in a variety of diseases, including cancer, neurodegenerative diseases, and viral infections. Therefore, targeted inhibition of HSP90 provides a valuable and promising therapeutic strategy for the treatment of HSP90-related diseases. This review aims to systematically summarize the progress of research on HSP90 inhibitors in the last five years, focusing on their structural features, design strategies, and biological activities. It will refer to the natural products and their derivatives (including novobiocin derivatives, deguelin derivatives, quinone derivatives, and terpenoid derivatives), and to synthetic small molecules (including resorcinol derivatives, pyrazoles derivatives, triazole derivatives, pyrimidine derivatives, benzamide derivatives, benzothiazole derivatives, and benzofuran derivatives). In addition, the major HSP90 small-molecule inhibitors that have moved into clinical trials to date are also presented here.
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Affiliation(s)
- Yulong Li
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, China; School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Jinyun Dong
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, China.
| | - Jiang-Jiang Qin
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, China.
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2
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Cai A, Chen Y, Wang LS, Cusick JK, Shi Y. Depicting Biomarkers for HER2-Inhibitor Resistance: Implication for Therapy in HER2-Positive Breast Cancer. Cancers (Basel) 2024; 16:2635. [PMID: 39123362 PMCID: PMC11311605 DOI: 10.3390/cancers16152635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Revised: 07/16/2024] [Accepted: 07/19/2024] [Indexed: 08/12/2024] Open
Abstract
HER2 (human epidermal growth factor receptor 2) is highly expressed in a variety of cancers, including breast, lung, gastric, and pancreatic cancers. Its amplification is linked to poor clinical outcomes. At the genetic level, HER2 is encoded by the ERBB2 gene (v-erb-b2 avian erythroblastic leukemia viral oncogene homolog 2), which is frequently mutated or amplified in cancers, thus spurring extensive research into HER2 modulation and inhibition as viable anti-cancer strategies. An impressive body of FDA-approved drugs, including anti-HER2 monoclonal antibodies (mAbs), antibody-drug conjugates (ADCs), and HER2-tyrosine kinase inhibitors (TKIs), have demonstrated success in enhancing overall survival (OS) and disease progression-free survival (PFS). Yet, drug resistance remains a persistent challenge and raises the risks of metastatic potential and tumor relapse. Research into alternative therapeutic options for HER2+ breast cancer therefore proves critical for adapting to this ever-evolving landscape. This review highlights current HER2-targeted therapies, discusses predictive biomarkers for drug resistance, and introduces promising emergent therapies-especially combination therapies-that are aimed at overcoming drug resistance in the context of HER2+ breast cancer.
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Affiliation(s)
- Alvan Cai
- College of Medicine, California Northstate University, Elk Grove, CA 95757, USA; (A.C.); (J.K.C.)
| | - Yuan Chen
- Section Pathology of the Institute of Forensic Medicine, Jena University Hospital, Friedrich Schiller University Jena, Am Klinikum 1, 07747 Jena, Germany;
| | - Lily S. Wang
- University of California, Berkeley, CA 94720, USA;
| | - John K. Cusick
- College of Medicine, California Northstate University, Elk Grove, CA 95757, USA; (A.C.); (J.K.C.)
| | - Yihui Shi
- College of Medicine, California Northstate University, Elk Grove, CA 95757, USA; (A.C.); (J.K.C.)
- California Pacific Medical Center Research Institute, Sutter Bay Hospitals, San Francisco, CA 94107, USA
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3
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Inflammatory response to retrotransposons drives tumor drug resistance that can be prevented by reverse transcriptase inhibitors. Proc Natl Acad Sci U S A 2022; 119:e2213146119. [PMID: 36449545 PMCID: PMC9894111 DOI: 10.1073/pnas.2213146119] [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] [Indexed: 12/05/2022] Open
Abstract
Activation of endogenous retrotransposons frequently occurs in cancer cells and contributes to tumor genomic instability. To test whether inhibition of retrotranspositions has an anticancer effect, we used treatment with the nucleoside reverse transcriptase inhibitor (NRTI) stavudine (STV) in mouse cancer models, MMTV-HER2/Neu and Th-MYCN, that spontaneously develop breast cancer and neuroblastoma, respectively. In both cases, STV in drinking water did not affect tumor incidence nor demonstrate direct antitumor effects. However, STV dramatically extended progression-free survival in both models following an initial complete response to chemotherapy. To approach the mechanism underlying this phenomenon, we analyzed the effect of NRTI on the selection of treatment-resistant variants in tumor cells in culture. Cultivation of mouse breast carcinoma 4T1 in the presence of STV dramatically reduced the frequency of cells capable of surviving treatment with anticancer drugs. Global transcriptome analysis demonstrated that the acquisition of drug resistance by 4T1 cells was accompanied by an increase in the constitutive activity of interferon type I and NF-κB pathways and an elevated expression of LINE-1 elements, which are known to induce inflammatory responses via their products of reverse transcription. Treatment with NRTI reduced NF-κB activity and reverted drug resistance. Furthermore, the inducible expression of LINE-1 stimulated inflammatory response and increased the frequency of drug-resistant variants in a tumor cell population. These results indicate a mechanism by which retrotransposon desilencing can stimulate tumor cell survival during treatment and suggest reverse transcriptase inhibition as a potential therapeutic approach for targeting the development of drug-resistant cancers.
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Resistance to Trastuzumab. Cancers (Basel) 2022; 14:cancers14205115. [PMID: 36291900 PMCID: PMC9600208 DOI: 10.3390/cancers14205115] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 10/12/2022] [Accepted: 10/17/2022] [Indexed: 11/17/2022] Open
Abstract
Simple Summary Trastuzumab is a humanized antibody that has significantly improved the management and treatment outcomes of patients with cancers that overexpress HER2. Many research groups, both in academia and industry, have contributed towards understanding the various mechanisms engaged by trastuzumab to mediate its anti-tumor effects. Nevertheless, data from several clinical studies have indicated that a significant proportion of patients exhibit primary or acquired resistance to trastuzumab therapy. In this article, we discuss underlying mechanisms that contribute towards to resistance. Furthermore, we discuss the potential strategies to overcome some of the mechanisms of resistance to enhance the therapeutic efficacy of trastuzumab and other therapies based on it. Abstract One of the most impactful biologics for the treatment of breast cancer is the humanized monoclonal antibody, trastuzumab, which specifically recognizes the HER2/neu (HER2) protein encoded by the ERBB2 gene. Useful for both advanced and early breast cancers, trastuzumab has multiple mechanisms of action. Classical mechanisms attributed to trastuzumab action include cell cycle arrest, induction of apoptosis, and antibody-dependent cell-mediated cytotoxicity (ADCC). Recent studies have identified the role of the adaptive immune system in the clinical actions of trastuzumab. Despite the multiple mechanisms of action, many patients demonstrate resistance, primary or adaptive. Newly identified molecular and cellular mechanisms of trastuzumab resistance include induction of immune suppression, vascular mimicry, generation of breast cancer stem cells, deregulation of long non-coding RNAs, and metabolic escape. These newly identified mechanisms of resistance are discussed in detail in this review, particularly considering how they may lead to the development of well-rationalized, patient-tailored combinations that improve patient survival.
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5
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Gámez-Chiachio M, Sarrió D, Moreno-Bueno G. Novel Therapies and Strategies to Overcome Resistance to Anti-HER2-Targeted Drugs. Cancers (Basel) 2022; 14:4543. [PMID: 36139701 PMCID: PMC9496705 DOI: 10.3390/cancers14184543] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/09/2022] [Accepted: 09/15/2022] [Indexed: 11/17/2022] Open
Abstract
The prognosis and quality of life of HER2 breast cancer patients have significantly improved due to the crucial clinical benefit of various anti-HER2 targeted therapies. However, HER2 tumors can possess or develop several resistance mechanisms to these treatments, thus leaving patients with a limited set of additional therapeutic options. Fortunately, to overcome this problem, in recent years, multiple different and complementary approaches have been developed (such as antibody-drug conjugates (ADCs)) that are in clinical or preclinical stages. In this review, we focus on emerging strategies other than on ADCs that are either aimed at directly target the HER2 receptor (i.e., novel tyrosine kinase inhibitors) or subsequent intracellular signaling (e.g., PI3K/AKT/mTOR, CDK4/6 inhibitors, etc.), as well as on innovative approaches designed to attack other potential tumor weaknesses (such as immunotherapy, autophagy blockade, or targeting of other genes within the HER2 amplicon). Moreover, relevant technical advances such as anti-HER2 nanotherapies and immunotoxins are also discussed. In brief, this review summarizes the impact of novel therapeutic approaches on current and future clinical management of aggressive HER2 breast tumors.
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Affiliation(s)
- Manuel Gámez-Chiachio
- Biochemistry Department, Medicine Faculty, Universidad Autónoma Madrid-CSIC, IdiPaz, 28029 Madrid, Spain
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), 28029 Madrid, Spain
| | - David Sarrió
- Biochemistry Department, Medicine Faculty, Universidad Autónoma Madrid-CSIC, IdiPaz, 28029 Madrid, Spain
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), 28029 Madrid, Spain
| | - Gema Moreno-Bueno
- Biochemistry Department, Medicine Faculty, Universidad Autónoma Madrid-CSIC, IdiPaz, 28029 Madrid, Spain
- Centro de Investigación Biomédica en Red-Oncología (CIBERONC), 28029 Madrid, Spain
- MD Anderson International Foundation, 28033 Madrid, Spain
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6
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Zhang Z, Richmond A, Yan C. Immunomodulatory Properties of PI3K/AKT/mTOR and MAPK/MEK/ERK Inhibition Augment Response to Immune Checkpoint Blockade in Melanoma and Triple-Negative Breast Cancer. Int J Mol Sci 2022; 23:ijms23137353. [PMID: 35806358 PMCID: PMC9266842 DOI: 10.3390/ijms23137353] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 06/28/2022] [Accepted: 06/28/2022] [Indexed: 02/03/2023] Open
Abstract
Hyperactivation of PI3K/AKT/mTOR and MAPK/MEK/ERK signaling pathways is commonly observed in many cancers, including triple-negative breast cancer (TNBC) and melanoma. Moreover, the compensatory upregulation of the MAPK/MEK/ERK pathway has been associated with therapeutic resistance to targeted inhibition of the PI3K/AKT/mTOR pathway, and vice versa. The immune-modulatory effects of both PI3K and MAPK inhibition suggest that inhibition of these pathways might enhance response to immune checkpoint inhibitors (ICIs). ICIs have become the standard-of-care for metastatic melanoma and are recently an option for TNBC when combined with chemotherapy, but alternative options are needed when resistance develops. In this review, we present the current mechanistic understandings, along with preclinical and clinical evidence, that outline the efficacy and safety profile of combinatorial or sequential treatments with PI3K inhibitors, MAPK inhibitors, and ICIs for treatment of malignant melanoma and metastatic TNBC. This approach may present a potential strategy to overcome resistance in patients who are a candidate for ICI therapy with tumors harboring either or both of these pathway-associated mutations.
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Affiliation(s)
- Zhizhu Zhang
- Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN 37212, USA; (Z.Z.); (A.R.)
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN 37240, USA
| | - Ann Richmond
- Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN 37212, USA; (Z.Z.); (A.R.)
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN 37240, USA
| | - Chi Yan
- Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN 37212, USA; (Z.Z.); (A.R.)
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN 37240, USA
- Correspondence:
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7
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McCombs JR, Chang HP, Shah DK, Owen SC. Antibody-drug conjugate and free geldanamycin combination therapy enhances anti-cancer efficacy. Int J Pharm 2021; 610:121272. [PMID: 34763035 DOI: 10.1016/j.ijpharm.2021.121272] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 10/07/2021] [Accepted: 11/01/2021] [Indexed: 02/07/2023]
Abstract
Antibody drug-conjugates (ADCs) targeting human epidermal growth factor (HER2) are a rapidly expanding class of cancer therapeutics. Such ADCs are known to suffer from inefficient trafficking to the lysosome due to HER2 endosomal recycling, leaving most bound ADCs at the cell surface or in early endosomes. This study aims to increase the maximum cytotoxicity of ADC treatment by co-delivering a small molecule inhibitor targeting the primary chaperone of HER2, heat shock protein 90 (HSP90). We hypothesized that inhibiting HSP90 could aid ADC cytotoxicity by overcoming HER2 endosomal recycling. Flow cytometric studies tracking HER2 surface expression revealed ∼ 10 nM geldanamycin (GA) as the threshold for inhibiting HSP90 mediated HER2 recycling. Cytotoxicity studies in HER2 overexpressing cancer cell lines NCI-N87, MDA-MB-453, and SKOV3 demonstrated that co-administration of ADC alongside 100 nM GA significantly increased cytotoxicity compared to ADC alone. In all cases, baseline cytotoxicity was observed even in low HER2 expressing line MDA-MB-231 cells, indicating possible off-target effects. To mitigate this baseline cytotoxicity, a "pulse treatment" regime was adopted where cells are pre-loaded with T-DM1 or T-MMAE ADCs for 4 h, followed by a 4-hour pulse treatment with ADC and 100 nM GA to initiate trafficking of HER2 bound ADC to the lysosome. Afterwards, GA is removed, and ADC treatment is continued. GA pulse co-treatment decreased the amount of ADC required to achieve maximum cytotoxicity while minimizing baseline cytotoxicity. No such co-treatment regime featuring a pulse sequence has been explored before. Such co-treatments could offer a viable solution to increase ADC efficacy in hard to treat or resistant HER2-positive cancers.
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Affiliation(s)
- Jessica R McCombs
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, United States
| | - Hsuan Ping Chang
- Department of Pharmaceutical Sciences, The State University of New York at Buffalo, United States
| | - Dhaval K Shah
- Department of Pharmaceutical Sciences, The State University of New York at Buffalo, United States
| | - Shawn C Owen
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, United States; Department of Biomedical Engineering, Department of Medicinal Chemistry, Department of Internal Medicine, United States.
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8
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The C-terminal HSP90 inhibitor NCT-58 kills trastuzumab-resistant breast cancer stem-like cells. Cell Death Dis 2021; 7:354. [PMID: 34775489 PMCID: PMC8590693 DOI: 10.1038/s41420-021-00743-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 10/18/2021] [Accepted: 10/21/2021] [Indexed: 12/12/2022]
Abstract
N-terminal HSP90 inhibitors in development have had issues arising from heat shock response (HSR) induction and off-target effects. We sought to investigate the capacity of NCT-58, a rationally-synthesized C-terminal HSP90 inhibitor, to kill trastuzumab-resistant HER2-positive breast cancer stem-like cells. NCT-58 does not induce the HSR due to its targeting of the C-terminal region and elicits anti-tumor activity via the simultaneous downregulation of HER family members as well as inhibition of Akt phosphorylation. NCT-58 kills the rapidly proliferating bulk tumor cells as well as the breast cancer stem-like population, coinciding with significant reductions in stem/progenitor markers and pluripotent transcription factors. NCT-58 treatment suppressed growth and angiogenesis in a trastuzumab-resistant xenograft model, concomitant with downregulation of ICD-HER2 and HSF-1/HSP70/HSP90. These findings warrant further investigation of NCT-58 to address trastuzumab resistance in heterogeneous HER2-positive cancers.
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9
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Salkeni MA, Rizvi W, Hein K, Higa GM. Neu Perspectives, Therapies, and Challenges for Metastatic HER2-Positive Breast Cancer. BREAST CANCER-TARGETS AND THERAPY 2021; 13:539-557. [PMID: 34602823 PMCID: PMC8481821 DOI: 10.2147/bctt.s288344] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 08/20/2021] [Indexed: 12/26/2022]
Abstract
Even though gene amplification or protein overexpression occurs in approximately one-fifth of all breast cancers, the discovery of HER2 has, nevertheless, had profound implications for the disease. Indeed, the characterization of the receptor resulted in a number of significant advances. Structurally, unique features provided avenues for the development of numerous compounds with target-specificity; molecularly, biological constructs revealed a highly complex, internal signal transduction pathway with regulatory effects on tumor proliferation, survival, and perhaps, even resistance; and clinically, disease outcomes manifested its predictive and prognostic value. Yet despite the receptor’s utility, the beneficial effects are diminished by tumor recurrence after neo- or adjuvant therapy as well as losses resulting from the inability to cure patients with metastatic disease. What these observations suggest is that while tumor response may be partially linked to uncoupling cell surface message reception and nuclear gene expression, as well as recruitment of the innate immune system, disease progression and/or resistance may involve a reprogrammable signaling mainframe that elicits alternative growth and survival signals. This review attempts to meld current perceptions related to HER2-positive metastatic breast cancer with particular attention to current biological insights and therapeutic challenges.
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Affiliation(s)
- Mohamad Adham Salkeni
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Wajeeha Rizvi
- Department of Internal Medicine, West Virginia University, Morgantown, WV, USA
| | - Kyaw Hein
- Department of Business, Lamar University, Houston, TX, USA
| | - Gerald M Higa
- Departments of Clinical Pharmacy and Medicine, West Virginia University, Morgantown, WV, USA
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10
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Maadi H, Soheilifar MH, Choi WS, Moshtaghian A, Wang Z. Trastuzumab Mechanism of Action; 20 Years of Research to Unravel a Dilemma. Cancers (Basel) 2021; 13:cancers13143540. [PMID: 34298754 PMCID: PMC8303665 DOI: 10.3390/cancers13143540] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/10/2021] [Accepted: 07/12/2021] [Indexed: 12/12/2022] Open
Abstract
Trastuzumab as a first HER2-targeted therapy for the treatment of HER2-positive breast cancer patients was introduced in 1998. Although trastuzumab has opened a new avenue to treat patients with HER2-positive breast cancer and other types of cancer, some patients are not responsive or become resistant to this treatment. So far, several mechanisms have been suggested for the mode of action of trastuzumab; however, the findings regarding these mechanisms are controversial. In this review, we aimed to provide a detailed insight into the various mechanisms of action of trastuzumab.
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Affiliation(s)
- Hamid Maadi
- Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB T6G 1Z2, Canada; (H.M.); (W.-S.C.)
| | - Mohammad Hasan Soheilifar
- Department of Medical Laser, Medical Laser Research Center, Yara Institute, ACECR, Tehran 1315795613, Iran;
| | - Won-Shik Choi
- Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB T6G 1Z2, Canada; (H.M.); (W.-S.C.)
| | - Abdolvahab Moshtaghian
- Department of Molecular and Cell Biology, Faculty of Basic Sciences, University of Mazandaran, Babolsar 4741695447, Iran;
- Deputy of Research and Technology, Semnan University of Medical Sciences, Semnan 3514799442, Iran
| | - Zhixiang Wang
- Department of Medical Genetics and Signal, Transduction Research Group, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 2H7, Canada
- Correspondence:
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11
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Molecular Human Targets of Bioactive Alkaloid-Type Compounds from Tabernaemontana cymose Jacq. Molecules 2021; 26:molecules26123765. [PMID: 34205626 PMCID: PMC8234993 DOI: 10.3390/molecules26123765] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/10/2021] [Accepted: 06/18/2021] [Indexed: 12/29/2022] Open
Abstract
Alkaloids are a group of secondary metabolites that have been widely studied for the discovery of new drugs due to their properties on the central nervous system and their anti-inflammatory, antioxidant and anti-cancer activities. Molecular docking was performed for 10 indole alkaloids identified in the ethanol extract of Tabernaemontana cymosa Jacq. with 951 human targets involved in different diseases. The results were analyzed through the KEGG and STRING databases, finding the most relevant physiological associations for alkaloids. The molecule 5-oxocoronaridine proved to be the most active molecule against human proteins (binding energy affinity average = −9.2 kcal/mol) and the analysis of the interactions between the affected proteins pointed to the PI3K/ Akt/mTOR signaling pathway as the main target. The above indicates that indole alkaloids from T. cymosa constitute a promising source for the search and development of new treatments against different types of cancer.
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12
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Kaipa JM, Starkuviene V, Erfle H, Eils R, Gladilin E. Transcriptome profiling reveals Silibinin dose-dependent response network in non-small lung cancer cells. PeerJ 2020; 8:e10373. [PMID: 33362957 PMCID: PMC7749657 DOI: 10.7717/peerj.10373] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 10/26/2020] [Indexed: 12/20/2022] Open
Abstract
Silibinin (SIL), a natural flavonolignan from the milk thistle (Silybum marianum), is known to exhibit remarkable hepatoprotective, antineoplastic and EMT inhibiting effects in different cancer cells by targeting multiple molecular targets and pathways. However, the predominant majority of previous studies investigated effects of this phytocompound in a one particular cell line. Here, we carry out a systematic analysis of dose-dependent viability response to SIL in five non-small cell lung cancer (NSCLC) lines that gradually differ with respect to their intrinsic EMT stage. By correlating gene expression profiles of NSCLC cell lines with the pattern of their SIL IC50 response, a group of cell cycle, survival and stress responsive genes, including some prominent targets of STAT3 (BIRC5, FOXM1, BRCA1), was identified. The relevancy of these computationally selected genes to SIL viability response of NSCLC cells was confirmed by the transient knockdown test. In contrast to other EMT-inhibiting compounds, no correlation between the SIL IC50 and the intrinsic EMT stage of NSCLC cells was observed. Our experimental results show that SIL viability response of differently constituted NSCLC cells is linked to a subnetwork of tightly interconnected genes whose transcriptomic pattern can be used as a benchmark for assessment of individual SIL sensitivity instead of the conventional EMT signature. Insights gained in this study pave the way for optimization of customized adjuvant therapy of malignancies using Silibinin.
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Affiliation(s)
- Jagan Mohan Kaipa
- Helmholtz Center for Infection Research, Braunschweig, Germany.,BioQuant, University Heidelberg, Heidelberg, Germany.,Theoretical Bioinformatics, German Cancer Research Center, Heidelberg, Germany
| | - Vytaute Starkuviene
- BioQuant, University Heidelberg, Heidelberg, Germany.,Institute of Biosciences, Vilnius University Life Science Center, Vilnius, Lithuania
| | - Holger Erfle
- BioQuant, University Heidelberg, Heidelberg, Germany
| | - Roland Eils
- Center for Digital Health, Berlin Institute of Health and Charité Universitätsmedizin Berlin, Berlin, Germany.,Health Data Science Unit, Heidelberg University Hospital, Heidelberg, Germany
| | - Evgeny Gladilin
- BioQuant, University Heidelberg, Heidelberg, Germany.,Leibniz Institute of Plant Genetics and Crop Plant Research, Seeland, Germany.,Applied Bioinformatics, German Cancer Research Center, Heidelberg, Germany
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13
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Park JM, Kim YJ, Park S, Park M, Farrand L, Nguyen CT, Ann J, Nam G, Park HJ, Lee J, Kim JY, Seo JH. A novel HSP90 inhibitor targeting the C-terminal domain attenuates trastuzumab resistance in HER2-positive breast cancer. Mol Cancer 2020; 19:161. [PMID: 33218356 PMCID: PMC7678296 DOI: 10.1186/s12943-020-01283-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/12/2020] [Indexed: 11/10/2022] Open
Abstract
Trastuzumab resistance in HER2-positive breast cancer is associated with a poorer prognosis. HSP90 is thought to play a major role in such resistance, but N-terminal inhibitors of this target have had little success. We sought to investigate the utility of NCT-547, a novel, rationally-designed C-terminal HSP90 inhibitor in the context of overcoming trastuzumab resistance. NCT-547 treatment significantly induced apoptosis without triggering the heat shock response (HSR), accompanied by caspase-3/− 7 activation in both trastuzumab-sensitive and -resistant cells. NCT-547 effectively promoted the degradation of full-length HER2 and truncated p95HER2, while also attenuating hetero-dimerization of HER2 family members. The impairment of cancer stem-like traits was observed with reductions in ALDH1 activity, the CD24low/CD44high subpopulation, and mammosphere formation in vitro and in vivo. NCT-547 was an effective inhibitor of tumor growth and angiogenesis, and no toxic outcomes were found in initial hepatic and renal analysis. Our findings suggest that NCT-547 may have applications in addressing trastuzumab resistance in HER2-positive breast cancer.
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Affiliation(s)
- Jung Min Park
- Division of Medical Oncology, Department of Internal Medicine, Korea University College of Medicine, Korea University, Seoul, 152-703, Republic of Korea.,Brain Korea 21 Program for Biomedical Science, Korea University College of Medicine, Korea University, Seoul, 152-703, Republic of Korea
| | - Yoon-Jae Kim
- Division of Medical Oncology, Department of Internal Medicine, Korea University College of Medicine, Korea University, Seoul, 152-703, Republic of Korea.,Brain Korea 21 Program for Biomedical Science, Korea University College of Medicine, Korea University, Seoul, 152-703, Republic of Korea.,Department of Biomedical Research Center, Korea University Guro Hospital, Korea University, Guro Hospital Campus, 97 Gurodong-gil, Guro-gu, Seoul, 08308, Republic of Korea
| | - Soeun Park
- Division of Medical Oncology, Department of Internal Medicine, Korea University College of Medicine, Korea University, Seoul, 152-703, Republic of Korea.,Brain Korea 21 Program for Biomedical Science, Korea University College of Medicine, Korea University, Seoul, 152-703, Republic of Korea
| | - Minsu Park
- Division of Medical Oncology, Department of Internal Medicine, Korea University College of Medicine, Korea University, Seoul, 152-703, Republic of Korea.,Brain Korea 21 Program for Biomedical Science, Korea University College of Medicine, Korea University, Seoul, 152-703, Republic of Korea
| | - Lee Farrand
- Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, 5000, Australia
| | - Cong-Truong Nguyen
- Laboratory of Medicinal Chemistry, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jihyae Ann
- Laboratory of Medicinal Chemistry, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Gibeom Nam
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Hyun-Ju Park
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Jeewoo Lee
- Laboratory of Medicinal Chemistry, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea.
| | - Ji Young Kim
- Division of Medical Oncology, Department of Internal Medicine, Korea University College of Medicine, Korea University, Seoul, 152-703, Republic of Korea. .,Department of Biomedical Research Center, Korea University Guro Hospital, Korea University, Guro Hospital Campus, 97 Gurodong-gil, Guro-gu, Seoul, 08308, Republic of Korea.
| | - Jae Hong Seo
- Division of Medical Oncology, Department of Internal Medicine, Korea University College of Medicine, Korea University, Seoul, 152-703, Republic of Korea. .,Brain Korea 21 Program for Biomedical Science, Korea University College of Medicine, Korea University, Seoul, 152-703, Republic of Korea. .,Department of Biomedical Research Center, Korea University Guro Hospital, Korea University, Guro Hospital Campus, 97 Gurodong-gil, Guro-gu, Seoul, 08308, Republic of Korea.
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14
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Nishie M, Suzuki E, Hattori M, Kawaguch K, Kataoka TR, Hirata M, Pu F, Kotake T, Tsuda M, Yamaguchi A, Sugie T, Toi M. Downregulated ATP6V1B1 expression acidifies the intracellular environment of cancer cells leading to resistance to antibody-dependent cellular cytotoxicity. Cancer Immunol Immunother 2020; 70:817-830. [PMID: 33000417 DOI: 10.1007/s00262-020-02732-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 09/20/2020] [Indexed: 11/30/2022]
Abstract
Among several mechanisms for the resistance of human epidermal growth factor receptor 2-overexpressing (HER2 +) cancer cells to trastuzumab, little is known regarding the mechanism underlying the resistance to trastuzumab-mediated antibody-dependent cellular cytotoxicity (ADCC). Cell death due to ADCC is caused by apoptosis of target cells induced by granzymes released from natural killer cells. Because optimal granzyme physiological activity occurs at neutral pH, we assumed that the pH of the intracellular environment influences the cytotoxic effects of granzymes. We established ADCC-resistant cells and compared them with wild-type cells in terms of the expression of intracellular pH-regulating genes. The expression of ATP6V1B1, which encodes a component of vacuolar ATPases, was downregulated in the ADCC-resistant cells. Thus, to functionally characterize ATP6V1B1, we used a CRISPR/Cas9 system to generate ATP6V1B1-knockout SKBR3 and JIMT-1 cells (both HER2 + human breast cancer cell line). The resulting cells exhibited significantly less ADCC than the control SKBR3 and JIMT-1 cells. The intracellular pH of the ATP6V1B1-knockout SKBR3 and JIMT-1 cells was significantly lower than control SKBR3 and JIMT-1cells. An analysis of granzyme dynamics during the ADCC reaction in cancer cells revealed that granzymes degraded intracellularly in the control SKBR3 and JIMT-1 cells and accumulated in ATP6V1B1-knockout cells, but were not cytotoxic. These findings suggest that decreased vacuolar ATPase activity alters the cytoplasmic pH of cancer cells to create an environment that is less suitable for granzyme bioactivity, which adversely affects the induction of apoptosis of cancer cells by NK cells.
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Affiliation(s)
- Mariko Nishie
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Eiji Suzuki
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan. .,Department of Breast Surgery, Kyoto University Hospital, 54 Shogoin-kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Masakazu Hattori
- Department of Immunosenescence, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kosuke Kawaguch
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tatsuki R Kataoka
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Masahiro Hirata
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Fengling Pu
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takeshi Kotake
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Moe Tsuda
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ayane Yamaguchi
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tomoharu Sugie
- Department of Breast Surgery, Kansai Medical University, Osaka, Japan
| | - Masakazu Toi
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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15
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Discovery of novel anti-breast cancer agents derived from deguelin as inhibitors of heat shock protein 90 (HSP90). Bioorg Med Chem Lett 2020; 30:127374. [PMID: 32738983 DOI: 10.1016/j.bmcl.2020.127374] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 06/22/2020] [Accepted: 06/29/2020] [Indexed: 01/03/2023]
Abstract
A series of O-substituted analogues of the B,C-ring truncated scaffold of deguelin were designed as C-terminal inhibitors of heat shock protein 90 (HSP90) and investigated as novel antiproliferative agents against HER2-positive breast cancer. Among the synthesized compounds, compound 80 exhibited significant inhibition in both trastuzumab-sensitive and trastuzumab-resistant breast cancer cells, whereas compound 80 did not show any cytotoxicity in normal cells. Compound 80 markedly downregulated the expression of the major client proteins of HSP90 in both cell types, indicating that the cytotoxicity of 80 in breast cancer cells is attributed to the destabilization and inactivation of HSP90 client proteins and that HSP90 inhibition represents a promising strategy to overcome trastuzumab resistance. A molecular docking study of 80 with the homology model of a HSP90 homodimer showed that 80 fit nicely in the C-terminal domain with a higher electrostatic complementary score than that of ATP.
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16
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Chen MK, Hsu JL, Hung MC. Nuclear receptor tyrosine kinase transport and functions in cancer. Adv Cancer Res 2020; 147:59-107. [PMID: 32593407 DOI: 10.1016/bs.acr.2020.04.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Signaling functions of plasma membrane-localized receptor tyrosine kinases (RTKs) have been extensively studied after they were first described in the mid-1980s. Plasma membrane RTKs are activated by extracellular ligands and cellular stress stimuli, and regulate cellular responses by activating the downstream effector proteins to initiate a wide range of signaling cascades in the cells. However, increasing evidence indicates that RTKs can also be transported into the intracellular compartments where they phosphorylate traditional effector proteins and non-canonical substrate proteins. In general, internalization that retains the RTK's transmembrane domain begins with endocytosis, and endosomal RTK remains active before being recycled or degraded. Further RTK retrograde transport from endosome-Golgi-ER to the nucleus is primarily dependent on membranes vesicles and relies on the interaction with the COP-I vesicle complex, Sec61 translocon complex, and importin. Internalized RTKs have non-canonical substrates that include transcriptional co-factors and DNA damage response proteins, and many nuclear RTKs harbor oncogenic properties and can enhance cancer progression. Indeed, nuclear-localized RTKs have been shown to positively correlate with cancer recurrence, therapeutic resistance, and poor prognosis of cancer patients. Therefore, understanding the functions of nuclear RTKs and the mechanisms of nuclear RTK transport will further improve our knowledge to evaluate the potential of targeting nuclear RTKs or the proteins involved in their transport as new cancer therapeutic strategies.
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Affiliation(s)
- Mei-Kuang Chen
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States; The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, United States
| | - Jennifer L Hsu
- The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, United States
| | - Mien-Chie Hung
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States; Graduate Institute of Biomedical Sciences, Research Center for Cancer Biology, and Center for Molecular Medicine, China Medical University, Taichung, Taiwan.
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17
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The deubiquitylase USP2 maintains ErbB2 abundance via counteracting endocytic degradation and represents a therapeutic target in ErbB2-positive breast cancer. Cell Death Differ 2020; 27:2710-2725. [PMID: 32327714 PMCID: PMC7429833 DOI: 10.1038/s41418-020-0538-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 03/28/2020] [Accepted: 04/01/2020] [Indexed: 12/23/2022] Open
Abstract
ErbB2 overexpression identifies a subclass of breast cancer as ErbB2-positive that is frequently associated with poor prognosis. Current ErbB2-targeted therapies have profoundly improved patient outcomes, but mutations occurring in ErbB2 have been shown to confer drug resistance. Induction of ErbB2 degradation was proposed as an intriguing strategy to battle with ErbB2-positive breast cancer and reduced mutation-incurred drug resistance. Although multiple HSP90 inhibitors have been demonstrated to effectively trigger ErbB2 degradation, none succeeded in the clinical evaluations. To develop novel ErbB2-targeting strategies, we investigated the endocytic degradation and reversible ubiquitylation of ErbB2 in breast cancer. In this study, we reveal that HSP90 inhibition leads to efficient ubiquitylation and endocytic degradation of ErbB2 through the canonical endo-lysosomal route. USP2 associates with internalized ErbB2 and prevents its lysosomal sorting and degradation via exerting deubiquitylase activity. Accordingly, the USP2 inhibitor ML364 is capable of inducing ErbB2 ubiquitylation and accelerating its turnover. ML364 potentiates the pro-degradation effects of HSP90 inhibitors on ErbB2 and hence sensitizes ErbB2-positive breast cancer cells to HSP90 inhibition. The combination of USP2 and HSP90 inhibitors effectively restrains ErbB2-positive breast cancer xenograft growth in vivo. Based on these observations, we conclude that USP2 safeguards ErbB2 surface levels by antagonizing its ubiquitylation-mediated endocytic degradation, which can be exploited to design novel therapeutic strategies against ErbB2-driven malignancies as combinatorial treatment with HSP90 inhibitors.
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18
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Derakhshani A, Rezaei Z, Safarpour H, Sabri M, Mir A, Sanati MA, Vahidian F, Gholamiyan Moghadam A, Aghadoukht A, Hajiasgharzadeh K, Baradaran B. Overcoming trastuzumab resistance in HER2-positive breast cancer using combination therapy. J Cell Physiol 2020; 235:3142-3156. [PMID: 31566722 DOI: 10.1002/jcp.29216] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 09/03/2019] [Indexed: 12/16/2022]
Abstract
Human epidermal growth factor receptor 2 (HER2)-positive breast cancer (BC) comprises around 20-30% of all BC subtypes and is correlated with poor prognosis. For many years, trastuzumab, a monoclonal antibody, has been used to inhibit the HER2 activity. Though, the main resistance to trastuzumab has challenged the use of this drug in the management of HER2-positive BC. Therefore, the determination of resistance mechanisms and the incorporation of new agents may lead to the development of a better blockade of the HER family receptor signaling. During the last few years, some therapeutic drugs have been developed for treating patients with trastuzumab-resistant HER2-positive BC that have more effective influences in the management of this condition. In this regard, the present study aimed at reviewing the mechanisms of trastuzumab resistance and the innovative therapies that have been investigated in trastuzumab-resistant HER2-positive BC subjects.
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Affiliation(s)
- Afshin Derakhshani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zohreh Rezaei
- Department of Biology, Faculty of Sciences, University of Sistan and Balouchestan, Zahedan, Iran
| | - Hossein Safarpour
- Cellular & Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Morteza Sabri
- Department of Biology, Faculty of Sciences, University of Sistan and Balouchestan, Zahedan, Iran
| | - Atefeh Mir
- Department of Biology, Faculty of Sciences, University of Sistan and Balouchestan, Zahedan, Iran
| | - Mohammad Amin Sanati
- Cellular & Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Fatemeh Vahidian
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Ali Aghadoukht
- Department of Biological Science, Faculty of Science, University of Kurdistan, Sanandaj, Iran
| | | | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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19
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Howell MC, Green R, Khalil R, Foran E, Quarni W, Nair R, Stevens S, Grinchuk A, Hanna A, Mohapatra S, Mohapatra S. Lung cancer cells survive epidermal growth factor receptor tyrosine kinase inhibitor exposure through upregulation of cholesterol synthesis. FASEB Bioadv 2020; 2:90-105. [PMID: 32123859 PMCID: PMC7003654 DOI: 10.1096/fba.2019-00081] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 10/04/2019] [Accepted: 11/12/2019] [Indexed: 01/09/2023] Open
Abstract
Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) provide clinical benefits over chemotherapy for lung cancer patients with EGFR activating mutations. Despite initial clinical responses, long-term efficacy is not possible because of acquired resistance to these therapies. We have developed EGFR TKI drug-tolerant (DT) human lung cancer cell lines as a model for de novo resistance. Mass spectroscopic analysis revealed that the cytochrome P450 protein, CYP51A1 (Lanosterol 14α-demethylase), which is directly involved with cholesterol synthesis, was significantly upregulated in the DT cells. Total cellular cholesterol, and more specifically, mitochondrial cholesterol, were found to be upregulated in DT cells. We then used the CYP51A1 inhibitor, ketoconazole, to downregulate cholesterol synthesis. In both parental and DT cells, ketoconazole and EGFR TKIs acted synergistically to induce apoptosis and overcome the development of EGFR tolerance. Lastly, this combination therapy was shown to shrink the growth of tumors in an in vivo mouse model of EGFR TKI resistance. Thus, our study demonstrates for the first time that ketoconazole treatment inhibits upregulation of mitochondrial cholesterol and thereby overcomes EGFR-TKI resistance in lung cancer cells.
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Affiliation(s)
- Mark C. Howell
- Molecular Medicine DepartmentUniversity of South FloridaTampaFLUSA
- Center for Research & Education in NanobioengineeringUniversity of South FloridaTampaFLUSA
| | - Ryan Green
- Molecular Medicine DepartmentUniversity of South FloridaTampaFLUSA
- Center for Research & Education in NanobioengineeringUniversity of South FloridaTampaFLUSA
| | - Roukiah Khalil
- Molecular Medicine DepartmentUniversity of South FloridaTampaFLUSA
| | - Elspeth Foran
- Molecular Medicine DepartmentUniversity of South FloridaTampaFLUSA
| | - Waise Quarni
- Molecular Medicine DepartmentUniversity of South FloridaTampaFLUSA
| | | | - Stanley Stevens
- Cell Biology, Microbiology, and Molecular BiologyCollege of Arts and SciencesUniversity of South FloridaTampaFLUSA
| | | | - Andrew Hanna
- Molecular Medicine DepartmentUniversity of South FloridaTampaFLUSA
| | - Shyam Mohapatra
- Center for Research & Education in NanobioengineeringUniversity of South FloridaTampaFLUSA
- Division of Translational MedicineInternal MedicineMorsani College of MedicineUniversity of South FloridaTampaFLUSA
- James A Haley Veterans HospitalTampaFLUSA
| | - Subhra Mohapatra
- Molecular Medicine DepartmentUniversity of South FloridaTampaFLUSA
- Center for Research & Education in NanobioengineeringUniversity of South FloridaTampaFLUSA
- James A Haley Veterans HospitalTampaFLUSA
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20
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Shramova EI, Proshkina GM, Deyev SM. The Cause of ErbB2 Receptor Resistance to Downregulation. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2018. [DOI: 10.1134/s1068162018030147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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21
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Eroglu Z, Chen YA, Gibney GT, Weber JS, Kudchadkar RR, Khushalani NI, Markowitz J, Brohl AS, Tetteh LF, Ramadan H, Arnone G, Li J, Zhao X, Sharma R, Darville LNF, Fang B, Smalley I, Messina JL, Koomen JM, Sondak VK, Smalley KSM. Combined BRAF and HSP90 Inhibition in Patients with Unresectable BRAF V600E-Mutant Melanoma. Clin Cancer Res 2018; 24:5516-5524. [PMID: 29674508 DOI: 10.1158/1078-0432.ccr-18-0565] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 03/20/2018] [Accepted: 04/17/2018] [Indexed: 12/16/2022]
Abstract
Purpose: BRAF inhibitors are clinically active in patients with advanced BRAFV600-mutant melanoma, although acquired resistance remains common. Preclinical studies demonstrated that resistance could be overcome using concurrent treatment with the HSP90 inhibitor XL888.Patients and Methods: Vemurafenib (960 mg p.o. b.i.d.) combined with escalating doses of XL888 (30, 45, 90, or 135 mg p.o. twice weekly) was investigated in 21 patients with advanced BRAFV600-mutant melanoma. Primary endpoints were safety and determination of a maximum tolerated dose. Correlative proteomic studies were performed to confirm HSP inhibitor activity.Results: Objective responses were observed in 15 of 20 evaluable patients [75%; 95% confidence interval (CI), 51%-91%], with 3 complete and 12 partial responses. Median progression-free survival and overall survival were 9.2 months (95% CI, 3.8-not reached) and 34.6 months (6.2-not reached), respectively. The most common grade 3/4 toxicities were skin toxicities, such as rash (n = 4, 19%) and cutaneous squamous cell carcinomas (n = 3, 14%), along with diarrhea (n = 3, 14%). Pharmacodynamic analysis of patients' peripheral blood mononuclear cells (PBMC) showed increased day 8 HSP70 expression compared with baseline in the three cohorts with XL888 doses ≥45 mg. Diverse effects of vemurafenib-XL888 upon intratumoral HSP client protein expression were noted, with the expression of multiple proteins (including ERBB3 and BAD) modulated on therapy.Conclusions: XL888 in combination with vemurafenib has clinical activity in patients with advanced BRAFV600-mutant melanoma, with a tolerable side-effect profile. HSP90 inhibitors warrant further evaluation in combination with current standard-of-care BRAF plus MEK inhibitors in BRAFV600-mutant melanoma. Clin Cancer Res; 24(22); 5516-24. ©2018 AACR See related commentary by Sullivan, p. 5496.
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Affiliation(s)
- Zeynep Eroglu
- Department of Cutaneous Oncology, Moffitt Cancer Center, Tampa, Florida
| | - Y Ann Chen
- Department of Biostatistics and Bioinformatics, Moffitt Cancer Center, Tampa, Florida
| | - Geoffrey T Gibney
- Georgetown Lombardi Comprehensive Cancer Center, Washington, District of Columbia
| | | | - Ragini R Kudchadkar
- Winship Cancer Institute of Emory University School of Medicine, Atlanta, Georgia
| | | | - Joseph Markowitz
- Department of Cutaneous Oncology, Moffitt Cancer Center, Tampa, Florida
| | - Andrew S Brohl
- Department of Cutaneous Oncology, Moffitt Cancer Center, Tampa, Florida
| | - Leticia F Tetteh
- Department of Cutaneous Oncology, Moffitt Cancer Center, Tampa, Florida
| | - Howida Ramadan
- Department of Cutaneous Oncology, Moffitt Cancer Center, Tampa, Florida
| | - Gina Arnone
- Department of Cutaneous Oncology, Moffitt Cancer Center, Tampa, Florida
| | - Jiannong Li
- Department of Biostatistics and Bioinformatics, Moffitt Cancer Center, Tampa, Florida
| | - Xiuhua Zhao
- Department of Cutaneous Oncology, Moffitt Cancer Center, Tampa, Florida
| | - Ritin Sharma
- Department of Tumor Biology, Moffitt Cancer Center, Tampa, Florida
| | | | - Bin Fang
- Department of Proteomics, Moffitt Cancer Center, Tampa, Florida
| | - Inna Smalley
- Department of Tumor Biology, Moffitt Cancer Center, Tampa, Florida
| | - Jane L Messina
- Department of Cutaneous Oncology, Moffitt Cancer Center, Tampa, Florida
| | - John M Koomen
- Molecular Oncology, Moffitt Cancer Center, Tampa, Florida
| | - Vernon K Sondak
- Department of Cutaneous Oncology, Moffitt Cancer Center, Tampa, Florida
| | - Keiran S M Smalley
- Department of Cutaneous Oncology, Moffitt Cancer Center, Tampa, Florida. .,Department of Tumor Biology, Moffitt Cancer Center, Tampa, Florida
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22
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Larionov AA. Current Therapies for Human Epidermal Growth Factor Receptor 2-Positive Metastatic Breast Cancer Patients. Front Oncol 2018; 8:89. [PMID: 29670855 PMCID: PMC5894159 DOI: 10.3389/fonc.2018.00089] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 03/14/2018] [Indexed: 01/01/2023] Open
Abstract
The median survival of patients with human epidermal growth factor receptor 2 (HER2)-positive metastatic breast cancer (MBC) has more than doubled, since the discovery of HER2-targeted treatments: it rose from less than 2 years in 2001 (prior introduction of trastuzumab) to more than 4 years in 2017. The initial generation of HER2-targeted therapies included trastuzumab with taxanes in the first line, followed by the addition of lapatinib and by a switch to another cytotoxic agent after progression. Results of CLEOPATRA, EMILIA, and TH3RESA trials have changed this clinical practice. The current consensus includes horizontal dual blockade (trastuzumab + pertuzumab) with taxanes or vinorelbine in the first line, followed by trastuzumab-emtansine (T-DM1) in the second line, with addition of lapatinib in the later lines of treatment. However, the fast and simultaneous development of new drugs led to a relative shortage of clinical evidence to support this sequence. Triple-positive breast cancers (TPBC), which express both hormonal receptors and HER2, constitute nearly half of HER2-positive cases. For these tumors, the current consensus is to add endocrine therapy after completion of cytotoxic treatment. Again, this consensus is not fully evidence-based. In view of the recent progress in treatment of estrogen-receptor positive breast cancers, a series of trials is evaluating addition of CDK4/6 inhibitors, aromatase inhibitors or fulvestrant to HER2-targeted and cytotoxic chemotherapy in TPBC patients. Despite the remarkable progress in treatment of HER2-positive breast cancer, metastatic disease is still incurable in the majority of patients. A wide range of novel therapies are under development to prevent and overcome resistance to current HER2-targeted agents. This review discusses pivotal clinical trials that have shaped current clinical practices, the current consensus recommendations, and the new experimental treatments in metastatic HER2-positive breast cancer.
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Affiliation(s)
- Alexey A Larionov
- Department of Medical Genetics, School of Clinical Medicine, University of Cambridge, Cambridge, United Kingdom
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23
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Identification of an HSP90 modulated multi-step process for ERBB2 degradation in breast cancer cells. Oncotarget 2018; 7:85411-85429. [PMID: 27863425 PMCID: PMC5356745 DOI: 10.18632/oncotarget.13392] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 10/28/2016] [Indexed: 12/24/2022] Open
Abstract
The receptor tyrosine kinase ERBB2 interacts with HSP90 and is overexpressed in aggressive breast cancers. Therapeutic HSP90 inhibitors, i.e. Geldanamycin (GA), target ERBB2 to degradation. We have previously shown that HSP90 is responsible for the missorting of recycling ERBB2 to degradation compartments. In this study, we used biochemical, immunofluorescence and electron microscopy techniques to demonstrate that in SKBR3 human breast cancer cells, GA strongly induces polyubiquitination and internalization of the full-length p185-ERBB2, and promotes its cleavage, with the formation of a p116-ERBB2 form in EEA1-positive endosomes (EE). p116-ERBB2 corresponds to a non-ubiquitinated, signaling-impaired, membrane-bound fragment, which is readily sorted to lysosomes and degraded. To define the sequence of events leading to p116-ERBB2 degradation, we first blocked the EE maturation/trafficking to late endosomes/lysosomes with wortmannin, and found an increase in GA-dependent formation of p116-ERBB2; we then inhibited the proteasome activity with MG-132 or lactacystin, and observed an efficient block of p185-ERBB2 cleavage, and its accumulation in EE, suggesting that p185-ERBB2 polyubiquitination is necessary for proteasome-dependent p116-ERBB2 generation occurring in EE. As polyubiquitination has also been implicated in autophagy-mediated degradation of ERBB2 under different experimental conditions, we exploited this possibility and demonstrate that GA strongly inhibits early autophagy, and reduces the levels of the autophagy markers atg5-12 and LC3-II, irrespective of GA-induced ERBB2 polyubiquitination, ruling out a GA-dependent autophagic degradation of ERBB2. In conclusion, we propose that HSP90 inhibition fosters ERBB2 polyubiquitination and proteasome-dependent generation of a non-ubiquitinated and inactive p116-ERBB2 form in EE, which is trafficked from altered EE to lysosomes.
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24
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Butti R, Das S, Gunasekaran VP, Yadav AS, Kumar D, Kundu GC. Receptor tyrosine kinases (RTKs) in breast cancer: signaling, therapeutic implications and challenges. Mol Cancer 2018; 17:34. [PMID: 29455658 PMCID: PMC5817867 DOI: 10.1186/s12943-018-0797-x] [Citation(s) in RCA: 208] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 02/01/2018] [Indexed: 12/19/2022] Open
Abstract
Breast cancer is a multifactorial disease and driven by aberrant regulation of cell signaling pathways due to the acquisition of genetic and epigenetic changes. An array of growth factors and their receptors is involved in cancer development and metastasis. Receptor Tyrosine Kinases (RTKs) constitute a class of receptors that play important role in cancer progression. RTKs are cell surface receptors with specialized structural and biological features which respond to environmental cues by initiating appropriate signaling cascades in tumor cells. RTKs are known to regulate various downstream signaling pathways such as MAPK, PI3K/Akt and JAK/STAT. These pathways have a pivotal role in the regulation of cancer stemness, angiogenesis and metastasis. These pathways are also imperative for a reciprocal interaction of tumor and stromal cells. Multi-faceted role of RTKs renders them amenable to therapy in breast cancer. However, structural mutations, gene amplification and alternate pathway activation pose challenges to anti-RTK therapy.
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Affiliation(s)
- Ramesh Butti
- Laboratory of Tumor Biology, Angiogenesis and Nanomedicine Research, National Centre for Cell Science, SP Pune University Campus, Pune, 411007, India
| | - Sumit Das
- Laboratory of Tumor Biology, Angiogenesis and Nanomedicine Research, National Centre for Cell Science, SP Pune University Campus, Pune, 411007, India
| | - Vinoth Prasanna Gunasekaran
- Laboratory of Tumor Biology, Angiogenesis and Nanomedicine Research, National Centre for Cell Science, SP Pune University Campus, Pune, 411007, India
| | - Amit Singh Yadav
- Laboratory of Tumor Biology, Angiogenesis and Nanomedicine Research, National Centre for Cell Science, SP Pune University Campus, Pune, 411007, India
| | - Dhiraj Kumar
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, 77054, USA
| | - Gopal C Kundu
- Laboratory of Tumor Biology, Angiogenesis and Nanomedicine Research, National Centre for Cell Science, SP Pune University Campus, Pune, 411007, India.
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25
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Crouch B, Murphy H, Belonwu S, Martinez A, Gallagher J, Hall A, Soo MS, Lee M, Hughes P, Haystead T, Ramanujam N. Leveraging ectopic Hsp90 expression to assay the presence of tumor cells and aggressive tumor phenotypes in breast specimens. Sci Rep 2017; 7:17487. [PMID: 29235516 PMCID: PMC5727497 DOI: 10.1038/s41598-017-17832-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 11/27/2017] [Indexed: 01/02/2023] Open
Abstract
Hsp90 has been studied extensively as a therapeutic target in breast cancer in pre-clinical and clinical trials, demonstrating a variety of roles in metastatic progression. The evidence to date suggests a compelling opportunity to leverage attributes of Hsp90 expression beyond therapeutics with potential applications in breast cancer diagnosis, prognosis, and recurrence risk assessment. In this study, we developed a completely non-destructive strategy using HS-27, a fluorescently-tethered Hsp90 inhibitor, to assay Hsp90 expression on intact tissue specimens with comparable contrast to in vivo administration routes, and demonstrate the feasibility of our approach in breast cancer patients. In addition to Hsp90 inhibition being most effective in glycolytic tumors, we found ectopic Hsp90 expression to be highest in glycolytic tumors reinforcing its role as an indicator of aggressive disease. This work sets the stage for immediately using Hsp90 to improve outcomes for breast cancer patients without affecting traditional care pathways.
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Affiliation(s)
- Brian Crouch
- Department of Biomedical Engineering, Duke University, Durham, NC 27710, USA.
| | - Helen Murphy
- Department of Biomedical Engineering, Duke University, Durham, NC 27710, USA
| | - Stella Belonwu
- Duke University Trinity College of Arts and Sciences, Durham, NC 27710, USA
| | - Amy Martinez
- Department of Biomedical Engineering, Duke University, Durham, NC 27710, USA
| | - Jennifer Gallagher
- Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA
| | - Allison Hall
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
| | - Mary Scott Soo
- Department of Radiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Marianne Lee
- Department of Biomedical Engineering, Duke University, Durham, NC 27710, USA
| | - Philip Hughes
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC 27710, USA
| | - Timothy Haystead
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC 27710, USA
| | - Nirmala Ramanujam
- Department of Biomedical Engineering, Duke University, Durham, NC 27710, USA.,Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC 27710, USA
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26
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Abstract
The efficient production, folding, and secretion of proteins is critical for cancer cell survival. However, cancer cells thrive under stress conditions that damage proteins, so many cancer cells overexpress molecular chaperones that facilitate protein folding and target misfolded proteins for degradation via the ubiquitin-proteasome or autophagy pathway. Stress response pathway induction is also important for cancer cell survival. Indeed, validated targets for anti-cancer treatments include molecular chaperones, components of the unfolded protein response, the ubiquitin-proteasome system, and autophagy. We will focus on links between breast cancer and these processes, as well as the development of drug resistance, relapse, and treatment.
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Affiliation(s)
| | - Jeffrey L Brodsky
- Department of Biological Sciences, University of Pittsburgh, A320 Langley Hall, 4249 Fifth Ave, Pittsburgh, PA, 15260, USA.
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27
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Gerson JN, Skariah S, Denlinger CS, Astsaturov I. Perspectives of HER2-targeting in gastric and esophageal cancer. Expert Opin Investig Drugs 2017; 26:531-540. [PMID: 28387541 PMCID: PMC5563845 DOI: 10.1080/13543784.2017.1315406] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
INTRODUCTION The blockade of HER2 signaling has significantly improved the outlook for esophagogastric cancer patients. However, targeting HER2 still remains challenging due to complex biology of this receptor in gastric and esophageal cancers. Areas covered: Here, we review complex HER2 biology, current methods of HER2 testing and tumor heterogeneity of gastroesophageal cancer. Ongoing and completed clinical research data are discussed. Expert opinion: HER2 overexpression is a validated target in gastroesophageal cancer, with therapeutic implications resulting in prolonged survival when inhibited in the front-line setting. With standardized HER2 testing in gastro-esophageal cancer, the ongoing trials are testing newer agents and combinations including combination of anti-HER2 antibodies with immunotherapy. Clonal heterogeneity and emergence of resistance will challenge our approach to treating these patients beyond the frontline settings.
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Affiliation(s)
- James N Gerson
- a Department of Hemagology/Oncology , Fox Chase Cancer Center , Philadelphia , PA , USA
| | - Sam Skariah
- b Abington Memorial Hospital , Abington , PA , USA
| | - Crystal S Denlinger
- a Department of Hemagology/Oncology , Fox Chase Cancer Center , Philadelphia , PA , USA
| | - Igor Astsaturov
- c Program in Molecular Therapeutics and Department of Medical Oncology , Fox Chase Cancer Center , Philadelphia , PA , USA
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28
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Takeda T, Yamamoto H, Kanzaki H, Suzawa K, Yoshioka T, Tomida S, Cui X, Murali R, Namba K, Sato H, Torigoe H, Watanabe M, Shien K, Soh J, Asano H, Tsukuda K, Kitamura Y, Miyoshi S, Sendo T, Toyooka S. Yes1 signaling mediates the resistance to Trastuzumab/Lap atinib in breast cancer. PLoS One 2017; 12:e0171356. [PMID: 28158234 PMCID: PMC5291431 DOI: 10.1371/journal.pone.0171356] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 01/19/2017] [Indexed: 12/13/2022] Open
Abstract
Background Overexpression of human epidermal growth factor receptor 2 (HER2) is observed in approximately 15–23% of breast cancers and these cancers are classified as HER2-positive breast cancer. Trastuzumab is the first-line targeted therapeutic drug for HER2-positive breast cancer and has improved patient overall survival. However, acquired resistance to trastuzumab is still a critical issue in breast cancer treatment. We previously established a trastuzumab-resistant breast cancer cell line (named as BT-474-R) from a trastuzumab-sensitive HER2-amplified cell line BT-474. Lapatinib is also a molecular-targeted drug for HER2-positive breast cancer, which acquired the resistance to trastuzumab. Acquired resistance to lapatinib is also an issue to be conquered. Methods We established trastuzumab/lapatinib-dual resistant cell line (named as BT-474-RL2) by additionally treating BT-474-R with lapatinib. We analyzed the mechanisms of resistance to trastuzumab and lapatinib. Besides, we analyzed the effect of the detected resistance mechanism in HER2-positive breast cancer patients. Results Proto-oncogene tyrosine-protein kinase Yes1, which is one of the Src family members, was amplified, overexpressed and activated in BT-474-R and BT-474-RL2. Silencing of Yes1 by siRNA induced both BT-474-R and BT-474-RL2 to restore the sensitivity to trastuzumab and lapatinib. Pharmaceutical inhibition of Yes1 by the Src inhibitor dasatinib was also effective to restore the sensitivity to trastuzumab and lapatinib in the two resistant cell lines. Combination treatment with dasatinib and trastuzumab induced down-regulation of signaling molecules such as HER2 and Akt. Moreover, the combination treatments induced G1-phase cell-cycle arrest and apoptosis. Consistent with cell line data, high expression of Yes1 mRNA was correlated with worse prognosis in patients with HER2-positive breast cancer. Conclusion Yes1 plays an important role in acquired resistance to trastuzumab and lapatinib in HER2-positive breast cancer. Our data suggest that pharmacological inhibition of Yes1 may be an effective strategy to overcome resistance to trastuzumab and lapatinib.
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Affiliation(s)
- Tatsuaki Takeda
- Department of Clinical Pharmacy, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Hiromasa Yamamoto
- Department of Thoracic, Breast and Endocrinological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Hirotaka Kanzaki
- Department of Clinical Pharmacy, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Ken Suzawa
- Department of Thoracic, Breast and Endocrinological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Takahiro Yoshioka
- Department of Clinical Genomic Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Shuta Tomida
- Department of Biobank, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Xiaojiang Cui
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
| | - Ramachandran Murali
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
| | - Kei Namba
- Department of Thoracic, Breast and Endocrinological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Hiroki Sato
- Department of Thoracic, Breast and Endocrinological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Hidejiro Torigoe
- Department of Thoracic, Breast and Endocrinological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
- Department of Clinical Genomic Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Mototsugu Watanabe
- Department of Thoracic, Breast and Endocrinological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Kazuhiko Shien
- Department of Thoracic, Breast and Endocrinological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Junichi Soh
- Department of Thoracic, Breast and Endocrinological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Hiroaki Asano
- Department of Thoracic, Breast and Endocrinological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Kazunori Tsukuda
- Department of Thoracic, Breast and Endocrinological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Yoshihisa Kitamura
- Department of Clinical Pharmacy, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Shinichiro Miyoshi
- Department of Thoracic, Breast and Endocrinological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Toshiaki Sendo
- Department of Clinical Pharmacy, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Shinichi Toyooka
- Department of Thoracic, Breast and Endocrinological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
- Department of Clinical Genomic Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
- * E-mail:
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29
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Novotny CJ, Pollari S, Park JH, Lemmon MA, Shen W, Shokat KM. Overcoming resistance to HER2 inhibitors through state-specific kinase binding. Nat Chem Biol 2016; 12:923-930. [PMID: 27595329 PMCID: PMC5069157 DOI: 10.1038/nchembio.2171] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 06/16/2016] [Indexed: 12/14/2022]
Abstract
The heterodimeric receptor tyrosine kinase complex formed by HER2 and HER3 can act as an oncogenic driver and is also responsible for rescuing a large number of cancers from a diverse set of targeted therapies. Current inhibitors of these proteins, particularly HER2, have dramatically improved patient outcomes in the clinic but recent studies have demonstrated that stimulation of the heterodimeric complex, either by growth factors or increasing the concentrations of HER2 and HER3 at the membrane, significantly diminishes their activity. In order to find an inhibitor of the active HER2/HER3 oncogenic complex we developed a panel of Ba/F3 cell lines suitable for ultra-high throughput screening. Medicinal chemistry on the hit scaffold resulted in a novel inhibitor that acts through the preferential inhibition of the active state of HER2 and as a result is able to overcome cellular mechanisms of resistance such as growth factors or mutations that stabilize the active form of HER2.
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Affiliation(s)
- Chris J Novotny
- Howard Hughes Medical Institute, University of California San Francisco, San Francisco, California, USA.,Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, California, USA
| | - Sirkku Pollari
- California Institute for Biomedical Research (Calibr), La Jolla, California, USA
| | - Jin H Park
- Department of Biochemistry and Biophysics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA.,Graduate Group in Biochemistry and Molecular Biophysics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Mark A Lemmon
- Department of Biochemistry and Biophysics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA.,Graduate Group in Biochemistry and Molecular Biophysics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Weijun Shen
- California Institute for Biomedical Research (Calibr), La Jolla, California, USA
| | - Kevan M Shokat
- Howard Hughes Medical Institute, University of California San Francisco, San Francisco, California, USA.,Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, California, USA
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30
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Wang H, Lu M, Yao M, Zhu W. Effects of treatment with an Hsp90 inhibitor in tumors based on 15 phase II clinical trials. Mol Clin Oncol 2016; 5:326-334. [PMID: 27602225 DOI: 10.3892/mco.2016.963] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 07/01/2016] [Indexed: 01/05/2023] Open
Abstract
Heat shock protein (Hsp)90 serves as a chaperone protein that promotes the proper folding of proteins involved in a variety of signal transduction processes involved in cell growth. Hsp90 inhibitors, which inhibit the activity of critical client proteins, have emerged as the accessory therapeutic agents for multiple human cancer types. To better understand the effects of Hsp90 inhibitors in cancer treatment, the present study reviewed 15 published phase II clinical trials to investigate whether Hsp90 inhibitors will benefit patients with cancer. Information of complete response, partial response, stable disease, objective response and objective response rate was collected to evaluate clinical outcomes. Overall, Hsp90 inhibitors are effective against a variety of oncogene-addicted cancers, including those that have developed resistance to specific receptors.
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Affiliation(s)
- He Wang
- Department of Oncology, The Third Affiliated Hospital of Nanjing Medical University, Nanjing 211100, P.R. China
| | - Mingjie Lu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, P.R. China
| | - Mengqian Yao
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, P.R. China
| | - Wei Zhu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, P.R. China
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31
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Luque-Cabal M, García-Teijido P, Fernández-Pérez Y, Sánchez-Lorenzo L, Palacio-Vázquez I. Mechanisms Behind the Resistance to Trastuzumab in HER2-Amplified Breast Cancer and Strategies to Overcome It. CLINICAL MEDICINE INSIGHTS-ONCOLOGY 2016; 10:21-30. [PMID: 27042153 PMCID: PMC4811269 DOI: 10.4137/cmo.s34537] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 02/10/2016] [Accepted: 02/11/2016] [Indexed: 12/15/2022]
Abstract
The introduction of trastuzumab therapy markedly improved the poor prognosis associated with HER2-amplified breast cancers. Despite this, the presence of primary and acquired resistance to trastuzumab treatment remains a significant common challenge. The identification of resistance mechanisms and the incorporation of new drugs that achieve a better blockade of HER family receptors signaling have resulted in improved outcomes. The phosphatidylinositol 3′-kinase/protein kinase B/mammalian target of rapamycin pathway, cross-talk with estrogen receptors, immune response, cell cycle control mechanisms, and other tyrosine kinase receptors such as insulin-like growth factor I receptor are potential pathways involved in trastuzumab resistance. Different therapeutic interventions targeting these pathways are currently under evaluation.
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Affiliation(s)
- María Luque-Cabal
- Department of Medical Oncology, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain
| | | | - Yolanda Fernández-Pérez
- Department of Medical Oncology, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain
| | - Luisa Sánchez-Lorenzo
- Department of Medical Oncology, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain
| | - Isabel Palacio-Vázquez
- Department of Medical Oncology, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain
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32
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Wang M, Shen A, Zhang C, Song Z, Ai J, Liu H, Sun L, Ding J, Geng M, Zhang A. Development of Heat Shock Protein (Hsp90) Inhibitors To Combat Resistance to Tyrosine Kinase Inhibitors through Hsp90-Kinase Interactions. J Med Chem 2016; 59:5563-86. [PMID: 26844689 DOI: 10.1021/acs.jmedchem.5b01106] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Heat shock protein 90 (Hsp90) is a ubiquitous chaperone of all of the oncogenic tyrosine kinases. Many Hsp90 inhibitors, alone or in combination, have shown significant antitumor efficacy against the kinase-positive naïve and mutant models. However, clinical trials of these inhibitors are unsuccessful due to insufficient clinical benefits and nonoptimal safety profiles. Recently, much progress has been reported on the Hsp90-cochaperone-client complex, which will undoubtedly assist in the understanding of the interactions between Hsp90 and its clients. Meanwhile, Hsp90 inhibitors have shown promise against patients' resistance caused by early generation tyrosine kinase inhibitors (TKIs), and at least 13 Hsp90 inhibitors are being reevaluated in the clinic. In this regard, the objectives of the current perspective are to summarize the structure and function of the Hsp90-cochaperone-client complex, to analyze the structural and functional insights into the Hsp90-client interactions to address several existing unresolved problems with Hsp90 inhibitors, and to highlight the preclinical and clinical studies of Hsp90 inhibitors as an effective treatment against resistance to tyrosine kinase inhibitors.
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Affiliation(s)
- Meining Wang
- CAS Key Laboratory of Receptor Research, Synthetic Organic & Medicinal Chemistry Laboratory, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences , 555 Zuchongzhi Lu, Building 3, Room 426, Pudong, Shanghai 201203, China
| | - Aijun Shen
- Division of Anti-tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences , Shanghai 201203, China
| | - Chi Zhang
- Department of Medicinal Chemistry, China Pharmaceutical University , Nanjing 210009, China
| | - Zilan Song
- CAS Key Laboratory of Receptor Research, Synthetic Organic & Medicinal Chemistry Laboratory, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences , 555 Zuchongzhi Lu, Building 3, Room 426, Pudong, Shanghai 201203, China
| | - Jing Ai
- Division of Anti-tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences , Shanghai 201203, China
| | - Hongchun Liu
- Division of Anti-tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences , Shanghai 201203, China
| | - Liping Sun
- Department of Medicinal Chemistry, China Pharmaceutical University , Nanjing 210009, China
| | - Jian Ding
- Division of Anti-tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences , Shanghai 201203, China
| | - Meiyu Geng
- Division of Anti-tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences , Shanghai 201203, China
| | - Ao Zhang
- CAS Key Laboratory of Receptor Research, Synthetic Organic & Medicinal Chemistry Laboratory, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences , 555 Zuchongzhi Lu, Building 3, Room 426, Pudong, Shanghai 201203, China
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Mohammad RM, Muqbil I, Lowe L, Yedjou C, Hsu HY, Lin LT, Siegelin MD, Fimognari C, Kumar NB, Dou QP, Yang H, Samadi AK, Russo GL, Spagnuolo C, Ray SK, Chakrabarti M, Morre JD, Coley HM, Honoki K, Fujii H, Georgakilas AG, Amedei A, Niccolai E, Amin A, Ashraf SS, Helferich WG, Yang X, Boosani CS, Guha G, Bhakta D, Ciriolo MR, Aquilano K, Chen S, Mohammed SI, Keith WN, Bilsland A, Halicka D, Nowsheen S, Azmi AS. Broad targeting of resistance to apoptosis in cancer. Semin Cancer Biol 2015; 35 Suppl:S78-S103. [PMID: 25936818 PMCID: PMC4720504 DOI: 10.1016/j.semcancer.2015.03.001] [Citation(s) in RCA: 527] [Impact Index Per Article: 58.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 03/04/2015] [Accepted: 03/04/2015] [Indexed: 12/15/2022]
Abstract
Apoptosis or programmed cell death is natural way of removing aged cells from the body. Most of the anti-cancer therapies trigger apoptosis induction and related cell death networks to eliminate malignant cells. However, in cancer, de-regulated apoptotic signaling, particularly the activation of an anti-apoptotic systems, allows cancer cells to escape this program leading to uncontrolled proliferation resulting in tumor survival, therapeutic resistance and recurrence of cancer. This resistance is a complicated phenomenon that emanates from the interactions of various molecules and signaling pathways. In this comprehensive review we discuss the various factors contributing to apoptosis resistance in cancers. The key resistance targets that are discussed include (1) Bcl-2 and Mcl-1 proteins; (2) autophagy processes; (3) necrosis and necroptosis; (4) heat shock protein signaling; (5) the proteasome pathway; (6) epigenetic mechanisms; and (7) aberrant nuclear export signaling. The shortcomings of current therapeutic modalities are highlighted and a broad spectrum strategy using approaches including (a) gossypol; (b) epigallocatechin-3-gallate; (c) UMI-77 (d) triptolide and (e) selinexor that can be used to overcome cell death resistance is presented. This review provides a roadmap for the design of successful anti-cancer strategies that overcome resistance to apoptosis for better therapeutic outcome in patients with cancer.
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Affiliation(s)
- Ramzi M Mohammad
- Department of Oncology, Karmanos Cancer Institute, Wayne State University, Detroit, MI, United States; Interim translational Research Institute, Hamad Medical Corporation, Doha, Qatar.
| | - Irfana Muqbil
- Department of Oncology, Karmanos Cancer Institute, Wayne State University, Detroit, MI, United States
| | - Leroy Lowe
- Getting to Know Cancer, Truro, Nova Scotia, Canada
| | - Clement Yedjou
- C-SET, [Jackson, #229] State University, Jackson, MS, United States
| | - Hsue-Yin Hsu
- Department of Life Sciences, Tzu-Chi University, Hualien, Taiwan
| | - Liang-Tzung Lin
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Markus David Siegelin
- Department of Pathology and Cell Biology, Columbia University, New York City, NY, United States
| | - Carmela Fimognari
- Dipartimento di Scienze per la Qualità della Vita Alma Mater Studiorum-Università di Bologna, Italy
| | - Nagi B Kumar
- Moffit Cancer Center, University of South Florida College of Medicine, Tampa, FL, United States
| | - Q Ping Dou
- Department of Oncology, Karmanos Cancer Institute, Wayne State University, Detroit, MI, United States; Departments of Pharmacology and Pathology, Karmanos Cancer Institute, Detroit MI, United States
| | - Huanjie Yang
- The School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang, China
| | | | - Gian Luigi Russo
- Institute of Food Sciences National Research Council, Avellino, Italy
| | - Carmela Spagnuolo
- Institute of Food Sciences National Research Council, Avellino, Italy
| | - Swapan K Ray
- Department of Pathology, Microbiology, and Immunology, University of South Carolina School of Medicine, Columbia, SC, United States
| | - Mrinmay Chakrabarti
- Department of Pathology, Microbiology, and Immunology, University of South Carolina School of Medicine, Columbia, SC, United States
| | - James D Morre
- Mor-NuCo, Inc, Purdue Research Park, West Lafayette, IN, United States
| | - Helen M Coley
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, United Kingdom
| | - Kanya Honoki
- Department of Orthopedic Surgery, Nara Medical University, Kashihara, Japan
| | - Hiromasa Fujii
- Department of Orthopedic Surgery, Nara Medical University, Kashihara, Japan
| | - Alexandros G Georgakilas
- Department of Physics, School of Applied Mathematical and Physical Sciences, National Technical University of Athens, Zografou 15780, Athens, Greece
| | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, university of florence, Italy
| | - Elena Niccolai
- Department of Experimental and Clinical Medicine, university of florence, Italy
| | - Amr Amin
- Department of Biology, College of Science, UAE University, United Arab Emirates; Faculty of Science, Cairo University, Egypt
| | - S Salman Ashraf
- Department of Chemistry, College of Science, UAE University, United Arab Emirates
| | - William G Helferich
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Xujuan Yang
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Chandra S Boosani
- Department of BioMedical Sciences, School of Medicine Creighton University, Omaha NE, United States
| | - Gunjan Guha
- School of Chemical and Bio Technology, SASTRA University, Thanjavur, India
| | - Dipita Bhakta
- School of Chemical and Bio Technology, SASTRA University, Thanjavur, India
| | | | - Katia Aquilano
- Department of Biology, University of Rome "Tor Vergata", Italy
| | - Sophie Chen
- Ovarian and Prostate Cancer Research Trust Laboratory, Guildford, Surrey, United Kingdom
| | - Sulma I Mohammed
- Department of Comparative Pathobiology and Purdue University Center for Cancer Research, Purdue, West Lafayette, IN, United States
| | - W Nicol Keith
- Institute of Cancer Sciences, University of Glasgow, Glasgow, Ireland
| | - Alan Bilsland
- Institute of Cancer Sciences, University of Glasgow, Glasgow, Ireland
| | - Dorota Halicka
- Department of Pathology, New York Medical College, Valhalla, NY, United States
| | - Somaira Nowsheen
- Mayo Graduate School, Mayo Medical School, Mayo Clinic Medical Scientist Training Program, Rochester, MN, United States
| | - Asfar S Azmi
- Department of Oncology, Karmanos Cancer Institute, Wayne State University, Detroit, MI, United States
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34
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Jhaveri K, Chandarlapaty S, Iyengar N, Morris PG, Corben AD, Patil S, Akram M, Towers R, Sakr RA, King TA, Norton L, Rosen N, Hudis C, Modi S. Biomarkers That Predict Sensitivity to Heat Shock Protein 90 Inhibitors. Clin Breast Cancer 2015; 16:276-83. [PMID: 26726007 DOI: 10.1016/j.clbc.2015.11.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 11/04/2015] [Accepted: 11/10/2015] [Indexed: 01/05/2023]
Abstract
INTRODUCTION Heat shock protein (HSP) 90, a viable target for cancer treatment, mediates the maturation and stabilization of client oncoproteins. HSP90 inhibitors (HSP90i) are potentially active in a variety of tumors, but therapeutic benefit is confirmed in only a small subset. We explored potential biomarkers across multiple studies of HSP90i in advanced solid tumors. PATIENTS AND METHODS Archived tumor specimens from patients treated with HSP90i in 7 different phase I/II trials at Memorial Sloan Kettering Cancer Center were identified. Tumor tissue was tested using immunohistochemistry; estrogen, progesterone, and androgen receptors ≥ 1% positive and < 1% negative; HSP90 and HSP70: 0, 1 + negative, and 2+, 3 + positive; phosphatase and tensin homolog: 0 negative, 1 reduced, and 2 positive; HER2: 0, 1 + negative, 2 + equivocal, 3 + positive; and epidermal growth factor receptor: 0 negative, and 1+, 2+, 3 + positive. The expression of the biomarker panel was correlated with clinical benefit (CB) (defined by overall response [ORR] or CB by the "8-week" scan) using Fisher exact test. RESULTS Adequate tissue was available for 51 of 158 patients (32%), including 10 different solid tumors. Of these, 71% (36 of 51) and 51% (26 of 51) patients met the criteria to assess CB by best ORR or by the "8-week scan" assessment, respectively. Breast was the most frequent tumor. The mean duration of HSP90i therapy was 55 days (range, 16-411 days). There were 16 responses (4 partial response; 12 stable disease); 13 of 16 responses strongly correlated with HER2-positive status (P = .001). CONCLUSION Our findings suggest HER2 as a sensitive client and perhaps the only effective biomarker for sensitivity to these HSP90i.
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Affiliation(s)
- Komal Jhaveri
- Memorial Sloan Kettering Cancer Center, New York, NY.
| | | | - Neil Iyengar
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - Patrick G Morris
- Memorial Sloan Kettering Cancer Center, New York, NY; Beaumont Hospital, Dublin, Ireland
| | | | - Sujata Patil
- Memorial Sloan Kettering Cancer Center, New York, NY
| | | | | | - Rita A Sakr
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - Tari A King
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - Larry Norton
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - Neal Rosen
- Memorial Sloan Kettering Cancer Center, New York, NY
| | | | - Shanu Modi
- Memorial Sloan Kettering Cancer Center, New York, NY
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35
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Gallium-68-labeled anti-HER2 single-chain Fv fragment: development and in vivo monitoring of HER2 expression. Mol Imaging Biol 2015; 17:102-10. [PMID: 25049073 DOI: 10.1007/s11307-014-0769-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
PURPOSE We aimed to develop a gallium-68 (Ga-68)-labeled single-chain variable fragment (scFv) targeting the human epidermal growth factor receptor 2 (HER2) to rapidly and noninvasively evaluate the status of HER2 expression. PROCEDURES Anti-HER2 scFv was labeled with Ga-68 by using deferoxamine (Df) as a bifunctional chelate. Biodistribution of [(68)Ga]Df-anti-HER2 scFv was examined with tumor-bearing mice and positron emission tomography (PET) imaging was performed. The changes in HER2 expression after anti-HER2 therapy were monitored by PET imaging. RESULTS [(68)Ga]Df-anti-HER2 scFv was obtained with high radiochemical yield after only a 5-min reaction at room temperature. The probe showed high accumulation in HER2-positive xenografts and the intratumoral distribution of radioactivity coincided with HER2-positive regions. Furthermore, [(68)Ga]Df-anti-HER2 scFv helped visualize HER2-positive xenografts and monitor the changes in HER2 expression after anti-HER2 therapy. CONCLUSION [(68)Ga]Df-anti-HER2 scFv could be a promising probe to evaluate HER2 status by in vivo PET imaging, unless trastuzumab is prescribed as part of the therapy.
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Spreafico A, Delord JP, De Mattos-Arruda L, Berge Y, Rodon J, Cottura E, Bedard PL, Akimov M, Lu H, Pain S, Kaag A, Siu LL, Cortes J. A first-in-human phase I, dose-escalation, multicentre study of HSP990 administered orally in adult patients with advanced solid malignancies. Br J Cancer 2015; 112:650-9. [PMID: 25625276 PMCID: PMC4333497 DOI: 10.1038/bjc.2014.653] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 11/04/2014] [Accepted: 12/04/2014] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Heat-shock protein 990 (HSP990) is a potent and selective synthetic small-molecule HSP90 inhibitor. The primary objectives of this phase I first-in-human study were to determine dose-limiting toxicities (DLTs), maximum-tolerated dose (MTD) and recommended phase II dose (RP2D). Secondary objectives included characterisation of the safety profile, pharmacokinetics (PKs) and pharmacodynamics (PDs). METHODS Heat-shock protein 990 was administered orally once or two times weekly on a 28-day cycle schedule in patients with advanced solid tumours. Dose escalation was guided by a Bayesian logistic regression model with overdose control. RESULTS A total of 64 patients were enrolled. Fifty-three patients received HSP990 once weekly at 2.5, 5, 10, 20, 30, 50 or 60 mg, whereas 11 patients received HSP990 two times weekly at 25 mg. Median duration of exposure was 8 weeks (range 1-116 weeks) and 12 patients remained on treatment for >16 weeks. Dose-limiting toxicities occurred in seven patients and included diarrhoea, QTc prolongation, ALT/AST elevations and central neurological toxicities. The most common drug-related adverse events were diarrhoea, fatigue and decreased appetite. Further dose escalation beyond 60 mg once weekly was not possible owing to neurological toxicity. Rapid absorption, no drug accumulation and large interpatient variability in PK exposures were observed. No objective responses were seen; 25 patients had a best overall response of stable disease. CONCLUSIONS Heat-shock protein 990 is relatively well tolerated, with neurological toxicity being the most relevant DLT. The single agent MTD/RP2D of HSP990 was declared at 50 mg once weekly.
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Affiliation(s)
- A Spreafico
- Drug Development Program, UHN – Princess Margaret Cancer Centre, Division of Medical Oncology and Hematology, Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - J-P Delord
- Institut Claudius Regaud, Toulouse, France
| | - L De Mattos-Arruda
- Vall d'Hebron University Hospital, Hospital and Universitat Autonoma de Barcelona, Barcelona, Spain
| | - Y Berge
- Institut Claudius Regaud, Toulouse, France
| | - J Rodon
- Vall d'Hebron University Hospital, Hospital and Universitat Autonoma de Barcelona, Barcelona, Spain
| | - E Cottura
- Institut Claudius Regaud, Toulouse, France
| | - P L Bedard
- Drug Development Program, UHN – Princess Margaret Cancer Centre, Division of Medical Oncology and Hematology, Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - M Akimov
- Novartis Pharma AG, Basel, Switzerland
| | - H Lu
- Novartis Pharmaceuticals Corp, East Hanover, NJ, USA
| | - S Pain
- Novartis Pharmaceuticals Corp, East Hanover, NJ, USA
| | - A Kaag
- Novartis Pharma AG, Basel, Switzerland
| | - L L Siu
- Drug Development Program, UHN – Princess Margaret Cancer Centre, Division of Medical Oncology and Hematology, Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - J Cortes
- Vall d'Hebron University Hospital, Hospital and Universitat Autonoma de Barcelona, Barcelona, Spain
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Synthetic lethality of combined glutaminase and Hsp90 inhibition in mTORC1-driven tumor cells. Proc Natl Acad Sci U S A 2015; 112:E21-9. [PMID: 25524627 PMCID: PMC4291663 DOI: 10.1073/pnas.1417015112] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The mammalian target of rapamycin complex 1 (mTORC1) integrates multiple signals from growth factors, nutrients, and cellular energy status to control a wide range of metabolic processes, including mRNA biogenesis; protein, nucleotide, and lipid synthesis; and autophagy. Deregulation of the mTORC1 pathway is found in cancer as well as genetic disorders such as tuberous sclerosis complex (TSC) and sporadic lymphangioleiomyomatosis. Recent studies have shown that the mTORC1 inhibitor rapamycin and its analogs generally suppress proliferation rather than induce apoptosis. Therefore, it is critical to use alternative strategies to induce death of cells with activated mTORC1. In this study, a small-molecule screen has revealed that the combination of glutaminase (GLS) and heat shock protein 90 (Hsp90) inhibitors selectively triggers death of TSC2-deficient cells. At a mechanistic level, high mTORC1-driven translation rates in TSC1/2-deficient cells, unlike wild-type cells, sensitizes these cells to endoplasmic reticulum (ER) stress. Thus, Hsp90 inhibition drives accumulation of unfolded protein and ER stress. When combining proteotoxic stress with oxidative stress by depletion of the intracellular antioxidant glutathione by GLS inhibition, acute cell death is observed in cells with activated mTORC1 signaling. This study suggests that this combination strategy may have the potential to be developed into a therapeutic use for the treatment of mTORC1-driven tumors.
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Solárová Z, Mojžiš J, Solár P. Hsp90 inhibitor as a sensitizer of cancer cells to different therapies (review). Int J Oncol 2014; 46:907-26. [PMID: 25501619 DOI: 10.3892/ijo.2014.2791] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Accepted: 10/22/2014] [Indexed: 11/06/2022] Open
Abstract
Hsp90 is a molecular chaperone that maintains the structural and functional integrity of various client proteins involved in signaling and many other functions of cancer cells. The natural inhibitors, ansamycins influence the Hsp90 chaperone function by preventing its binding to client proteins and resulting in their proteasomal degradation. N- and C-terminal inhibitors of Hsp90 and their analogues are widely tested as potential anticancer agents in vitro, in vivo as well as in clinical trials. It seems that Hsp90 competitive inhibitors target different tumor types at nanomolar concentrations and might have therapeutic benefit. On the contrary, some Hsp90 inhibitors increased toxicity and resistance of cancer cells induced by heat shock response, and through the interaction of survival signals, that occured as side effects of treatments, could be very effectively limited via combination of therapies. The aim of our review was to collect the data from experimental and clinical trials where Hsp90 inhibitor was combined with other therapies in order to prevent resistance as well as to potentiate the cytotoxic and/or antiproliferative effects.
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Affiliation(s)
- Zuzana Solárová
- Department of Pharmacology, Faculty of Medicine, P.J. Šafárik University, 040 01 Košice, Slovak Republic
| | - Ján Mojžiš
- Department of Pharmacology, Faculty of Medicine, P.J. Šafárik University, 040 01 Košice, Slovak Republic
| | - Peter Solár
- Laboratory of Cell Biology, Institute of Biology and Ecology, Faculty of Science, P.J. Šafárik University, 040 01 Košice, Slovak Republic
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Dittrich A, Gautrey H, Browell D, Tyson-Capper A. The HER2 Signaling Network in Breast Cancer--Like a Spider in its Web. J Mammary Gland Biol Neoplasia 2014; 19:253-70. [PMID: 25544707 DOI: 10.1007/s10911-014-9329-5] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 12/14/2014] [Indexed: 12/21/2022] Open
Abstract
The human epidermal growth factor receptor 2 (HER2) is a major player in the survival and proliferation of tumour cells and is overexpressed in up to 30 % of breast cancer cases. A considerable amount of work has been undertaken to unravel the activity and function of HER2 to try and develop effective therapies that impede its action in HER2 positive breast tumours. Research has focused on exploring the HER2 activated phosphoinositide-3-kinase (PI3K)/AKT and rat sarcoma/mitogen-activated protein kinase (RAS/MAPK) pathways for therapies. Despite the advances, cases of drug resistance and recurrence of disease still remain a challenge to overcome. An important aspect for drug resistance is the complexity of the HER2 signaling network. This includes the crosstalk between HER2 and hormone receptors; its function as a transcription factor; the regulation of HER2 by protein-tyrosine phosphatases and a complex network of positive and negative feedback-loops. This review summarises the current knowledge of many different HER2 interactions to illustrate the complexity of the HER2 network from the transcription of HER2 to the effect of its downstream targets. Exploring the novel avenues of the HER2 signaling could yield a better understanding of treatment resistance and give rise to developing new and more effective therapies.
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Affiliation(s)
- A Dittrich
- Institute of Cellular Medicine, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
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Bertelsen V, Stang E. The Mysterious Ways of ErbB2/HER2 Trafficking. MEMBRANES 2014; 4:424-46. [PMID: 25102001 PMCID: PMC4194043 DOI: 10.3390/membranes4030424] [Citation(s) in RCA: 127] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 07/01/2014] [Accepted: 07/22/2014] [Indexed: 12/14/2022]
Abstract
The EGFR- or ErbB-family of receptor tyrosine kinases consists of EGFR/ErbB1, ErbB2/HER2, ErbB3/HER3 and ErbB4/HER4. Receptor activation and downstream signaling are generally initiated upon ligand-induced receptor homo- or heterodimerization at the plasma membrane, and endocytosis and intracellular membrane transport are crucial for regulation of the signaling outcome. Among the receptors, ErbB2 is special in several ways. Unlike the others, ErbB2 has no known ligand, but is still the favored dimerization partner. Furthermore, while the other receptors are down-regulated either constitutively or upon ligand-binding, ErbB2 is resistant to down-regulation, and also inhibits down-regulation of its partner upon heterodimerization. The reason(s) why ErbB2 is resistant to down-regulation are the subject of debate. Contrary to other ErbB-proteins, mature ErbB2 needs Hsp90 as chaperone. Several data suggest that Hsp90 is an important regulator of factors like ErbB2 stability, dimerization and/or signaling. Hsp90 inhibitors induce degradation of ErbB2, but whether Hsp90 directly makes ErbB2 endocytosis resistant is unclear. Exposure to anti-ErbB2 antibodies can also induce down-regulation of ErbB2. Down-regulation induced by Hsp90 inhibitors or antibodies does at least partly involve internalization and endosomal sorting to lysosomes for degradation, but also retrograde trafficking to the nucleus has been reported. In this review, we will discuss different molecular mechanisms suggested to be important for making ErbB2 resistant to down-regulation, and review how membrane trafficking is involved when down-regulation and/or relocalization of ErbB2 is induced.
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Affiliation(s)
- Vibeke Bertelsen
- Department of Pathology, Oslo University Hospital, Rikshospitalet, Post Box 4950 Nydalen, 0424 Oslo, Norway.
| | - Espen Stang
- Department of Pathology, Oslo University Hospital, Rikshospitalet, Post Box 4950 Nydalen, 0424 Oslo, Norway.
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Vu T, Sliwkowski MX, Claret FX. Personalized drug combinations to overcome trastuzumab resistance in HER2-positive breast cancer. Biochim Biophys Acta Rev Cancer 2014; 1846:353-65. [PMID: 25065528 DOI: 10.1016/j.bbcan.2014.07.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 07/11/2014] [Accepted: 07/11/2014] [Indexed: 12/13/2022]
Abstract
HER2-positive (HER2+) breast cancer accounts for 18%-20% of all breast cancer cases and has the second poorest prognosis among breast cancer subtypes. Trastuzumab, the first Food and Drug Administration-approved targeted therapy for breast cancer, established the era of personalized treatment for HER2+ metastatic disease. It is well tolerated and improves overall survival and time-to-disease progression; with chemotherapy, it is part of the standard of care for patients with HER2+ metastatic disease. However, many patients do not benefit from it because of resistance. Substantial research has been performed to understand the mechanism of trastuzumab resistance and develop combination strategies to overcome the resistance. In this review, we provide insight into the current pipeline of drugs used in combination with trastuzumab and the degree to which these combinations have been evaluated, especially in patients who have experienced disease progression on trastuzumab. We conclude with a discussion of the current challenges and future therapeutic approaches to trastuzumab-based combination therapy.
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Affiliation(s)
- Thuy Vu
- Department of Systems Biology, Unit 950, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA; Experimental Therapeutics Academic Program, The University of Texas Graduate School of Biomedical Sciences at Houston, 6767 Bertner Ave., Houston, TX 77030, USA
| | | | - Francois X Claret
- Department of Systems Biology, Unit 950, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, USA; Experimental Therapeutics Academic Program, The University of Texas Graduate School of Biomedical Sciences at Houston, 6767 Bertner Ave., Houston, TX 77030, USA.
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HER2/neu: an increasingly important therapeutic target. Part 1: basic biology & therapeutic armamentarium. ACTA ACUST UNITED AC 2014. [DOI: 10.4155/cli.14.57] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Tural D, Akar E, Mutlu H, Kilickap S. P95 HER2 fragments and breast cancer outcome. Expert Rev Anticancer Ther 2014; 14:1089-96. [DOI: 10.1586/14737140.2014.929946] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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44
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Chen Y, Chen J, Loo A, Jaeger S, Bagdasarian L, Yu J, Chung F, Korn J, Ruddy D, Guo R, McLaughlin ME, Feng F, Zhu P, Stegmeier F, Pagliarini R, Porter D, Zhou W. Targeting HSF1 sensitizes cancer cells to HSP90 inhibition. Oncotarget 2014; 4:816-29. [PMID: 23615731 PMCID: PMC3757240 DOI: 10.18632/oncotarget.991] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The molecular chaperone heat shock protein 90 (HSP90) facilitates the appropriate folding of various oncogenic proteins and is necessary for the survival of some cancer cells. HSP90 is therefore an attractive drug target, but the efficacy of HSP90 inhibitor may be limited by HSP90 inhibition induced feedback mechanisms. Through pooled RNA interference screens, we identified that heat shock factor 1(HSF1) is a sensitizer of HSP90 inhibitor. A striking combinational effect was observed when HSF1 knockdown plus with HSP90 inhibitors treatment in various cancer cell lines and tumor mouse models. Interestingly, HSF1 is highly expressed in hepatocellular carcinoma (HCC) patient samples and HCC is sensitive to combinational treatment, indicating a potential indication for the combinational treatment. To understand the mechanism of the combinational effect, we identified that a HSF1-target gene DEDD2 is involved in attenuating the effect of HSP90 inhibitors. Thus, the transcriptional activities of HSF1 induced by HSP90 inhibitors provide a feedback mechanism of limiting the HSP90 inhibitor's activity, and targeting HSF1 may provide a new avenue to enhance HSP90 inhibitors activity in human cancers.
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Affiliation(s)
- Yaoyu Chen
- Oncology, Novartis Institutes for Biomedical Research, Cambridge, MA, USA
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Thery JC, Spano JP, Azria D, Raymond E, Penault Llorca F. Resistance to human epidermal growth factor receptor type 2-targeted therapies. Eur J Cancer 2014; 50:892-901. [DOI: 10.1016/j.ejca.2014.01.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2013] [Revised: 11/01/2013] [Accepted: 01/02/2014] [Indexed: 12/15/2022]
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46
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Higa GM, Singh V, Abraham J. Biological considerations and clinical applications of new HER2-targeted agents. Expert Rev Anticancer Ther 2014; 10:1497-509. [DOI: 10.1586/era.10.129] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Tessari A, Palmieri D, Di Cosimo S. Overview of diagnostic/targeted treatment combinations in personalized medicine for breast cancer patients. PHARMACOGENOMICS & PERSONALIZED MEDICINE 2013; 7:1-19. [PMID: 24403841 PMCID: PMC3883531 DOI: 10.2147/pgpm.s53304] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Breast cancer includes a body of molecularly distinct subgroups, characterized by different presentation, prognosis, and sensitivity to treatments. Significant advances in our understanding of the complex architecture of this pathology have been achieved in the last few decades, thanks to new biotechnologies that have recently come into the research field and the clinical practice, giving oncologists new instruments that are based on biomarkers and allowing them to set up a personalized approach for each individual patient. Here we review the main treatments available or in preclinical development, the biomolecular diagnostic and prognostic approaches that changed our perspective about breast cancer, giving an overview of targeted therapies that represent the current standard of care for these patients. Finally, we report some examples of how new technologies in clinical practice can set in motion the development of new drugs.
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Affiliation(s)
- Anna Tessari
- Division of Medical Oncology 1, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Dario Palmieri
- Molecular Biology and Cancer Genetics, Comprehensive Cancer Center, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Serena Di Cosimo
- Division of Medical Oncology 1, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
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Cossetti RJD, Gelmon KA. Novel Therapies for Metastatic HER2 Positive Breast Cancer. CURRENT BREAST CANCER REPORTS 2013. [DOI: 10.1007/s12609-013-0121-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mohamed A, Krajewski K, Cakar B, Ma CX. Targeted therapy for breast cancer. THE AMERICAN JOURNAL OF PATHOLOGY 2013; 183:1096-1112. [PMID: 23988612 DOI: 10.1016/j.ajpath.2013.07.005] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 07/01/2013] [Accepted: 07/02/2013] [Indexed: 02/06/2023]
Abstract
Breast cancer is a heterogeneous group of diseases that are clinically subdivided as hormone receptor-positive, human epidermal growth factor receptor 2-positive (HER2(+)), and triple-negative breast cancer, to guide therapeutic interventions. Agents that target estrogen receptor (ER) and HER2 are among the most successful cancer therapeutics. However, de novo or acquired resistance is common, despite the development of newer agents against these pathways. As our understanding of tumor biology improves, novel targets are being identified. Notably, inhibitors against several pathways [including, among others, the phosphoinositide 3-kinase/mammalian target of rapamycin (PI3K/mTOR), cell-cycle regulation, heat shock protein, and epigenetic pathways] have demonstrated promising activity in clinical trials, and the mTOR-inhibitor everolimus has been approved for advanced or metastatic aromatase inhibitor-resistant ER(+) breast cancer. At present, there are no established targeted agents for triple-negative breast cancer (negative ER, progesterone receptor, and HER2). Although poly(ADP-ribose) polymerase inhibitors have shown promising activity in BRCA-related cancers, its value in the treatment of triple-negative breast cancers remains to be demonstrated. In this Review, we present a basic understanding of the major targeted agents in current practice and under development for the treatment of breast cancer in the context of the three clinical subgroups.
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Affiliation(s)
- Ali Mohamed
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Kenneth Krajewski
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Burcu Cakar
- Ege University School of Medicine, Tulay Aktas Oncology Hospital, Izmir, Turkey
| | - Cynthia X Ma
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri; Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri.
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Alarcon SV, Mollapour M, Lee MJ, Tsutsumi S, Lee S, Kim YS, Prince T, Apolo AB, Giaccone G, Xu W, Neckers LM, Trepel JB. Tumor-intrinsic and tumor-extrinsic factors impacting hsp90- targeted therapy. Curr Mol Med 2013; 12:1125-41. [PMID: 22804236 DOI: 10.2174/156652412803306729] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Revised: 05/18/2012] [Accepted: 07/07/2012] [Indexed: 01/19/2023]
Abstract
In 1994 the first heat shock protein 90 (Hsp90) inhibitor was identified and Hsp90 was reported to be a target for anticancer therapeutics. In the past 18 years there have been 17 distinct Hsp90 inhibitors entered into clinical trial, and the small molecule Hsp90 inhibitors have been highly valuable as probes of the role of Hsp90 and its client proteins in cancer. Although no Hsp90 inhibitor has achieved regulatory approval, recently there has been significant progress in Hsp90 inhibitor clinical development, and in the past year RECIST responses have been documented in HER2-positive breast cancer and EML4-ALK-positive non-small cell lung cancer. All of the clinical Hsp90 inhibitors studied to date are specific in their target, i.e. they bind exclusively to Hsp90 and two related heat shock proteins. However, Hsp90 inhibitors are markedly pleiotropic, causing degradation of over 200 client proteins and impacting critical multiprotein complexes. Furthermore, it has only recently been appreciated that Hsp90 inhibitors can, paradoxically, cause transient activation of the protein kinase clients they are chaperoning, resulting in initiation of signal transduction and significant physiological events in both tumor and tumor microenvironment. An additional area of recent progress in Hsp90 research is in studies of the posttranslational modifications of Hsp90 itself and Hsp90 co-chaperone proteins. Together, a picture is emerging in which the impact of Hsp90 inhibitors is shaped by the tumor intracellular and extracellular milieu, and in which Hsp90 inhibitors impact tumor and host on a microenvironmental and systems level. Here we review the tumor intrinsic and extrinsic factors that impact the efficacy of small molecules engaging the Hsp90 chaperone machine.
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Affiliation(s)
- S V Alarcon
- Medical Oncology Branch, CCR, NCI, NIH, Bldg 10, Rm 12N230, 10 Center Drive, Bethesda, MD 20816, USA
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