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Armakolas A, Alevizopoulos N, Stathaki M, Petraki C, Agrogiannis G, Samiotaki M, Panayotou G, Chatzinikita E, Koutsilieris M. Anti-PEc: Development of a novel monoclonal antibody against prostate cancer. Br J Cancer 2024; 131:551-564. [PMID: 38902531 PMCID: PMC11300853 DOI: 10.1038/s41416-024-02713-8] [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: 02/29/2024] [Revised: 04/30/2024] [Accepted: 05/03/2024] [Indexed: 06/22/2024] Open
Abstract
BACKGROUND The Ec peptide (PEc) that defines the IGF-1Ec isoform, is associated with prostate cancer progression by inducing proliferation, metastases, and tumour repair. On these grounds, an anti-PEc monoclonal antibody (MAb) was developed. Our objective is to examine the effects of this antibody on prostate cancer and its possible side effects. METHODS The effects of the obtained MAb were examined in cancer and non-cancerous cell lines (unmodified and modified either to overexpress or silence PEc) and in tumours in SCID mice injected with unmodified prostate cancer cells. The investigation was obtained with respect to cellular proliferation, migration, invasion, toxicity to tumours, effects on the cell cycle, immune response activation, effects on mesenchymal stem cell mobilisation leading to tumour repair, tissue distribution, and toxicity to mice. RESULTS Anti-PEc MAb treatment led to a significant decrease in cellular proliferation, migration, and invasion compared to the untreated cell lines (p < 0.0005 in every case). Mechanistically, these effects were associated with the downregulation of pERK1/2 and vimentin and the upregulation of E-Cadherin. In vivo, anti-PEc MAb treatment was associated with a significant decrease in tumour size and metastases rate (p < 0.0005 in every case) by reversing the tumours mesenchymal phenotype. It also inhibited host stem cell mobilisation towards the tumour, leading to apoptosis. Anti-PEc MAb assessment in respect to distribution and toxicity, indicated its tumour specificity and lack of toxicity. CONCLUSIONS These data indicate that the therapeutic targeting of PEc with the anti-PEc MAb may have considerable clinical benefit for prostate cancer patients.
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Affiliation(s)
- Athanasios Armakolas
- Physiology Laboratory, Medical School, National and Kapodestrian University of Athens, Athens, Greece.
| | - Nektarios Alevizopoulos
- Physiology Laboratory, Medical School, National and Kapodestrian University of Athens, Athens, Greece
| | - Martha Stathaki
- Surgical Department, Elena Venizelou Hospital, Athens, Greece
| | | | - George Agrogiannis
- Department of Pathology, University of Athens, Medical School, National and Kapodestrian University of Athens, Athens, Greece
| | - Martina Samiotaki
- Bioinnovation Institute, Biomedical Science Research Center "Alexander Fleming.", Vari, Greece
| | - George Panayotou
- Bioinnovation Institute, Biomedical Science Research Center "Alexander Fleming.", Vari, Greece
| | - Eirini Chatzinikita
- Physiology Laboratory, Medical School, National and Kapodestrian University of Athens, Athens, Greece
| | - Michael Koutsilieris
- Physiology Laboratory, Medical School, National and Kapodestrian University of Athens, Athens, Greece
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Shahid A, Santos SG, Lin C, Huang Y. Role of Insulin-like Growth Factor-1 Receptor in Tobacco Smoking-Associated Lung Cancer Development. Biomedicines 2024; 12:563. [PMID: 38540176 PMCID: PMC10967781 DOI: 10.3390/biomedicines12030563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/23/2024] [Accepted: 02/29/2024] [Indexed: 04/14/2024] Open
Abstract
Cancer remains a significant global health concern, with lung cancer consistently leading as one of the most common malignancies. Genetic aberrations involving receptor tyrosine kinases (RTKs) are known to be associated with cancer initiation and development, but RTK involvement in smoking-associated lung cancer cases is not well understood. The Insulin-like Growth Factor 1 Receptor (IGF-1R) is a receptor that plays a critical role in lung cancer development. Its signaling pathway affects the growth and survival of cancer cells, and high expression is linked to poor prognosis and resistance to treatment. Several reports have shown that by activating IGF-1R, tobacco smoke-related carcinogens promote lung cancer and chemotherapy resistance. However, the relationship between IGF-1R and cancer is complex and can vary depending on the type of cancer. Ongoing investigations are focused on developing therapeutic strategies to target IGF-1R and overcome chemotherapy resistance. Overall, this review explores the intricate connections between tobacco smoke-specific carcinogens and the IGF-1R pathway in lung carcinogenesis. This review further highlights the challenges in using IGF-1R inhibitors as targeted therapy for lung cancer due to structural similarities with insulin receptors. Overcoming these obstacles may require a comprehensive approach combining IGF-1R inhibition with other selective agents for successful cancer treatment.
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Affiliation(s)
- Ayaz Shahid
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, CA 91766, USA;
| | - Shaira Gail Santos
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Carol Lin
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, CA 91766, USA;
| | - Ying Huang
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, Pomona, CA 91766, USA;
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3
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Li J, Huang G. Insulin receptor alternative splicing in breast and prostate cancer. Cancer Cell Int 2024; 24:62. [PMID: 38331804 PMCID: PMC10851471 DOI: 10.1186/s12935-024-03252-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 02/01/2024] [Indexed: 02/10/2024] Open
Abstract
Cancer etiology represents an intricate, multifactorial orchestration where metabolically associated insulin-like growth factors (IGFs) and insulin foster cellular proliferation and growth throughout tumorigenesis. The insulin receptor (IR) exhibits two splice variants arising from alternative mRNA processing, namely IR-A, and IR-B, with remarkable distribution and biological effects disparities. This insightful review elucidates the structural intricacies, widespread distribution, and functional significance of IR-A and IR-B. Additionally, it explores the regulatory mechanisms governing alternative splicing processes, intricate signal transduction pathways, and the intricate association linking IR-A and IR-B splicing variants to breast and prostate cancer tumorigenesis. Breast cancer and prostate cancer are the most common malignant tumors with the highest incidence rates among women and men, respectively. These findings provide a promising theoretical framework for advancing preventive strategies, diagnostic modalities, and therapeutic interventions targeting breast and prostate cancer.
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Affiliation(s)
- Jinyu Li
- Department of Medical Oncology, The Second Hospital of Dalian Medical University, No. 467 Zhongshan Road, Shahekou District, Dalian, 116023, Liaoning, China
| | - Gena Huang
- Department of Medical Oncology, The Second Hospital of Dalian Medical University, No. 467 Zhongshan Road, Shahekou District, Dalian, 116023, Liaoning, China.
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Forooghi Pordanjani T, Dabirmanesh B, Choopanian P, Mirzaie M, Mohebbi S, Khajeh K. Extracting Potential New Targets for Treatment of Adenoid Cystic Carcinoma using Bioinformatic Methods. IRANIAN BIOMEDICAL JOURNAL 2023; 27:294-306. [PMID: 37873683 PMCID: PMC10707816 DOI: 10.61186/ibj.27.5.294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 03/25/2023] [Indexed: 12/17/2023]
Abstract
Background Adenoid cystic carcinoma is a slow-growing malignancy that most often occurs in the salivary glands. Currently, no FDA-approved therapeutic target or diagnostic biomarker has been identified for this cancer. The aim of this study was to find new therapeutic and diagnostic targets using bioinformatics methods. Methods We extracted the gene expression information from two GEO datasets (including GSE59701 and GSE88804). Different expression genes between adenoid cystic carcinoma (ACC) and normal samples were extracted using R software. The biochemical pathways involved in ACC were obtained by using the Enrichr database. PPI network was drawn by STRING, and important genes were extracted by Cytoscape. Real-time PCR and immunohistochemistry were used for biomarker verification. Results After analyzing the PPI network, 20 hub genes were introduced to have potential as diagnostic and therapeutic targets. Among these genes, PLCG1 was presented as new biomarker in ACC. Furthermore, by studying the function of the hub genes in the enriched biochemical pathways, we found that insulin-like growth factor type 1 receptor and PPARG pathways most likely play a critical role in tumorigenesis and drug resistance in ACC and have a high potential for selection as therapeutic targets in future studies. Conclusion In this study, we achieved the recognition of the pathways involving in ACC pathogenesis and also found potential targets for treatment and diagnosis of ACC. Further experimental studies are required to confirm the results of this study.
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Affiliation(s)
| | - Bahareh Dabirmanesh
- Department of Biochemistry, Faculty of Biological Science, Tarbiat Modares University, Tehran, Iran
| | - Peyman Choopanian
- Department of Applied Mathematics, Faculty of Mathematical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mehdi Mirzaie
- Department of Applied Mathematics, Faculty of Mathematical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Saleh Mohebbi
- ENT and Head & Neck Research Center, the Five Senses Health Institute, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Khosro Khajeh
- Department of Biochemistry, Faculty of Biological Science, Tarbiat Modares University, Tehran, Iran
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Zhang Y, Hu Y, Yu J, Xie X, Jiang F, Wu C. Landscape of PCOS co-expression gene and its role in predicting prognosis and assisting immunotherapy in endometrial cancer. J Ovarian Res 2023; 16:129. [PMID: 37393293 DOI: 10.1186/s13048-023-01201-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 06/07/2023] [Indexed: 07/03/2023] Open
Abstract
BACKGROUND Endometrial carcinoma (EC) is the sixth most frequent malignancy in women and is often linked to high estrogen exposure. Polycystic ovarian syndrome (PCOS) is a known risk factor for EC, but the underlying mechanisms remain unclear. METHODS We investigated shared gene signals and potential biological pathways to identify effective therapy options for PCOS- and EC-related malignancies. Weighted gene expression network analysis (WGCNA) was used to identify genes associated with PCOS and EC using gene expression data from the Gene Expression Omnibus (GEO) and Cancer Genome Atlas (TCGA) datasets. Enrichment analysis using Cluego software revealed that the steroid hormone biosynthetic process was a critical feature in both PCOS and EC. A predictive signature encompassing genes involved in steroid hormone production was developed using multivariate and least absolute shrinkage and selection operator (LASSO) regression analysis to predict the prognosis of EC. Then, we conducted further experimental verification. RESULTS Patients in the TCGA cohort with high predictive scores had poorer outcomes than those with low scores. We also investigated the relationship between tumor microenvironment (TME) features and predictive risk rating and found that patients with low-risk scores had higher levels of inflammatory and inhibitory immune cells. Also, we found that immunotherapy against anti-CTLA4 and anti-PD-1/PD-L1 was successful in treating individuals with low risk. Low-risk individuals were more responsive to crizotinib therapy, according to further research performed using the "pRRophetic" R package. We further confirmed that IGF2 expression was associated with tumor cell migration, proliferation, and invasion in EC cells. CONCLUTIONS By uncovering the pathways and genes linking PCOS and EC, our findings may provide new therapeutic strategies for patients with PCOS-related EC.
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Affiliation(s)
- Yun Zhang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, No.300, Guangzhou Road, Nanjing, 210029, China
| | - Yifang Hu
- Department of Geriatric Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jian Yu
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, No.300, Guangzhou Road, Nanjing, 210029, China
| | - Xiaoyan Xie
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, No.300, Guangzhou Road, Nanjing, 210029, China
| | - Feng Jiang
- Department of Neonatology, Obstetrics and Gynecology Hospital of Fudan University, No.419, Fangxie Road, Shanghai, 200011, China.
| | - Chuyan Wu
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, No.300, Guangzhou Road, Nanjing, 210029, China.
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Emerging Role of IGF-1 in Prostate Cancer: A Promising Biomarker and Therapeutic Target. Cancers (Basel) 2023; 15:cancers15041287. [PMID: 36831629 PMCID: PMC9954466 DOI: 10.3390/cancers15041287] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
Prostate cancer (PCa) is a highly heterogeneous disease driven by gene alterations and microenvironmental influences. Not only enhanced serum IGF-1 but also the activation of IGF-1R and its downstream signaling components has been increasingly recognized to have a vital driving role in the development of PCa. A better understanding of IGF-1/IGF-1R activity and regulation has therefore emerged as an important subject of PCa research. IGF-1/IGF-1R signaling affects diverse biological processes in cancer cells, including promoting survival and renewal, inducing migration and spread, and promoting resistance to radiation and castration. Consequently, inhibitory reagents targeting IGF-1/IGF-1R have been developed to limit cancer development. Multiple agents targeting IGF-1/IGF-1R signaling have shown effects against tumor growth in tumor xenograft models, but further verification of their effectiveness in PCa patients in clinical trials is still needed. Combining androgen deprivation therapy or cytotoxic chemotherapeutics with IGF-1R antagonists based on reliable predictive biomarkers and developing and applying novel agents may provide more desirable outcomes. This review will summarize the contribution of IGF-1 signaling to the development of PCa and highlight the relevance of this signaling axis in potential strategies for cancer therapy.
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7
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Lee JS, Tocheny CE, Shaw LM. The Insulin-like Growth Factor Signaling Pathway in Breast Cancer: An Elusive Therapeutic Target. LIFE (BASEL, SWITZERLAND) 2022; 12:life12121992. [PMID: 36556357 PMCID: PMC9782138 DOI: 10.3390/life12121992] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/20/2022] [Accepted: 11/21/2022] [Indexed: 11/30/2022]
Abstract
In this review, we provide an overview of the role of the insulin-like growth factor (IGF) signaling pathway in breast cancer and discuss its potential as a therapeutic target. The IGF pathway ligands, IGF-1 and IGF-2, and their receptors, primarily IGF-1R, are important for normal mammary gland biology, and dysregulation of their expression and function drives breast cancer risk and progression through activation of downstream signaling effectors, often in a subtype-dependent manner. The IGF signaling pathway has also been implicated in resistance to current therapeutic strategies, including ER and HER2 targeting drugs. Unfortunately, efforts to target IGF signaling for the treatment of breast cancer have been unsuccessful, due to a number of factors, most significantly the adverse effects of disrupting IGF signaling on normal glucose metabolism. We highlight here the recent discoveries that provide enthusiasm for continuing efforts to target IGF signaling for the treatment of breast cancer patients.
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Affiliation(s)
| | | | - Leslie M. Shaw
- Correspondence: ; Tel.: +1-508-856-8675; Fax: +1-508-856-1310
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8
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Skolariki A, D’Costa J, Little M, Lord S. Role of PI3K/Akt/mTOR pathway in mediating endocrine resistance: concept to clinic. EXPLORATION OF TARGETED ANTI-TUMOR THERAPY 2022; 3:172-199. [PMID: 36046843 PMCID: PMC9400772 DOI: 10.37349/etat.2022.00078] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 02/11/2022] [Indexed: 01/06/2023] Open
Abstract
The majority of breast cancers express the estrogen receptor (ER) and for this group of patients, endocrine therapy is the cornerstone of systemic treatment. However, drug resistance is common and a focus for breast cancer preclinical and clinical research. Over the past 2 decades, the PI3K/Akt/mTOR axis has emerged as an important driver of treatment failure, and inhibitors of mTOR and PI3K are now licensed for the treatment of women with advanced ER-positive breast cancer who have relapsed on first-line hormonal therapy. This review presents the preclinical and clinical data that led to this new treatment paradigm and discusses future directions.
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Affiliation(s)
- Aglaia Skolariki
- Department of Oncology, University of Oxford, Churchill Hospital, OX3 7LE Oxford, UK
| | - Jamie D’Costa
- Department of Oncology, University of Oxford, Churchill Hospital, OX3 7LE Oxford, UK
| | - Martin Little
- Department of Oncology, Churchill Hospital, OX3 7LE Oxford, UK
| | - Simon Lord
- Department of Oncology, University of Oxford, Churchill Hospital, OX3 7LE Oxford, UK
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9
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Truong D, Cherradi-Lamhamedi SE, Ludwig JA. Targeting the IGF/PI3K/mTOR Pathway and AXL/YAP1/TAZ pathways in Primary Bone Cancer. J Bone Oncol 2022; 33:100419. [PMID: 35251924 PMCID: PMC8892134 DOI: 10.1016/j.jbo.2022.100419] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 12/14/2022] Open
Abstract
Primary bone cancers (PBC) belong to the family of mesenchymal tumors classified based on their cellular origin, extracellular matrix, genetic regulation, and epigenetic modification. The three major PBC types, Ewing sarcoma, osteosarcoma, and chondrosarcoma, are frequently aggressive tumors, highly metastatic, and typically occur in children and young adults. Despite their distinct origins and pathogenesis, these sarcoma subtypes rely upon common signaling pathways to promote tumor progression, metastasis, and survival. The IGF/PI3K/mTOR and AXL/YAP/TAZ pathways, in particular, have gained significant attention recently given their ties to oncogenesis, cell fate and differentiation, metastasis, and drug resistance. Naturally, these pathways – and their protein constituents – have caught the eye of the pharmaceutical industry, and a wide array of small molecule inhibitors and antibody drug-conjugates have emerged. Here, we review how the IGF/PI3K/mTOR and AXL/YAP/TAZ pathways promote PBC and highlight the drug candidates under clinical trial investigation.
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10
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Targeting the IGF-1R in prostate and colorectal cancer: reasons behind trial failure and future directions. Ther Deliv 2022; 13:167-186. [PMID: 35029130 DOI: 10.4155/tde-2021-0060] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
IGF-1Rs enact a significant part in cancer growth and its progress. IGF-1R inhibitors were encouraged in the early trials, but the patients did not benefit due to the unavailability of predictive biomarkers and IGF-1R system complexity. However, the linkage between IGF-1R and cancer was reported three decades ago. This review will shed light on the IGF-1R system, targeting IGF-1R through monoclonal antibodies, reasons behind IGF-1R trial failure and future directions. This study presented that targeting IGF-1R through monoclonal antibodies is still effective in cancer treatment, and there is a need to look for future directions. Cancer patients may benefit from using mAbs that target existing and new cancer targets, evidenced by promising results. It is also essential that the academician, trial experts and pharmaceutical companies play their role in finding a treatment for this deadly disease.
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11
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Ferrao Blanco MN, Domenech Garcia H, Legeai-Mallet L, van Osch GJVM. Tyrosine kinases regulate chondrocyte hypertrophy: promising drug targets for Osteoarthritis. Osteoarthritis Cartilage 2021; 29:1389-1398. [PMID: 34284112 DOI: 10.1016/j.joca.2021.07.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 06/24/2021] [Accepted: 07/08/2021] [Indexed: 02/02/2023]
Abstract
Osteoarthritis (OA) is a major health problem worldwide that affects the joints and causes severe disability. It is characterized by pain and low-grade inflammation. However, the exact pathogenesis remains unknown and the therapeutic options are limited. In OA articular chondrocytes undergo a phenotypic transition becoming hypertrophic, which leads to cartilage damage, aggravating the disease. Therefore, a therapeutic agent inhibiting hypertrophy would be a promising disease-modifying drug. The therapeutic use of tyrosine kinase inhibitors has been mainly focused on oncology, but the Food and Drug Administration (FDA) approval of the Janus kinase inhibitor Tofacitinib in Rheumatoid Arthritis has broadened the applicability of these compounds to other diseases. Interestingly, tyrosine kinases have been associated with chondrocyte hypertrophy. In this review, we discuss the experimental evidence that implicates specific tyrosine kinases in signaling pathways promoting chondrocyte hypertrophy, highlighting their potential as therapeutic targets for OA.
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Affiliation(s)
- M N Ferrao Blanco
- Department of Orthopaedics and Sports Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands.
| | - H Domenech Garcia
- Department of Orthopaedics and Sports Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands.
| | - L Legeai-Mallet
- Université de Paris, INSERM U1163, Institut Imagine, Paris, France.
| | - G J V M van Osch
- Department of Orthopaedics and Sports Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands; Department of Otorhinolaryngology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands; Department of Biomechanical Engineering, Delft University of Technology, Delft, the Netherlands.
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12
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Unraveling the IGF System Interactome in Sarcomas Exploits Novel Therapeutic Options. Cells 2021; 10:cells10082075. [PMID: 34440844 PMCID: PMC8392407 DOI: 10.3390/cells10082075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 08/06/2021] [Accepted: 08/10/2021] [Indexed: 12/15/2022] Open
Abstract
Aberrant bioactivity of the insulin-like growth factor (IGF) system results in the development and progression of several pathologic conditions including cancer. Preclinical studies have shown promising anti-cancer therapeutic potentials for anti-IGF targeted therapies. However, a clear but limited clinical benefit was observed only in a minority of patients with sarcomas. The molecular complexity of the IGF system, which comprises multiple regulators and interactions with other cancer-related pathways, poses a major limitation in the use of anti-IGF agents and supports the need of combinatorial therapeutic strategies to better tackle this axis. In this review, we will initially highlight multiple mechanisms underlying IGF dysregulation in cancer and then focus on the impact of the IGF system and its complexity in sarcoma development and progression as well as response to anti-IGF therapies. We will also discuss the role of Ephrin receptors, Hippo pathway, BET proteins and CXCR4 signaling, as mediators of sarcoma malignancy and relevant interactors with the IGF system in tumor cells. A deeper understanding of these molecular interactions might provide the rationale for novel and more effective therapeutic combinations to treat sarcomas.
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13
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Badarni M, Prasad M, Golden A, Bhattacharya B, Levin L, Yegodayev KM, Dimitstein O, Joshua BZ, Cohen L, Khrameeva E, Kong D, Porgador A, Braiman A, Grandis JR, Rotblat B, Elkabets M. IGF2 Mediates Resistance to Isoform-Selective-Inhibitors of the PI3K in HPV Positive Head and Neck Cancer. Cancers (Basel) 2021; 13:cancers13092250. [PMID: 34067117 PMCID: PMC8125641 DOI: 10.3390/cancers13092250] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/27/2021] [Accepted: 04/29/2021] [Indexed: 12/24/2022] Open
Abstract
Simple Summary In the current study, we delineate the molecular mechanisms of acquisition of resistance to two isoform-selective inhibitors of PI3K (isiPI3K), alpelisib and taselisib, in human papillomavirus positive head and neck cell lines. By comparing RNA sequencing of isiPI3K-sensitive tumor cells and their corresponding isiPI3K-acquired-resistant tumor cells, we found that overexpression of insulin growth factor 2 (IGF2) is associated with the resistance phenotype. We further demonstrated by gain and loss of function studies that IGF2 plays a causative role in limiting the sensitivity of human papillomavirus-positive head and neck cell lines. Moreover, we show that blocking IGF2 stimulation activity, using an inhibitor of the IGF1 receptor (IGF1R), enhances isiPI3K efficacy and displays a synergistic anti-tumor effect in vitro and superior anti-tumor activity ex vivo and in vivo. Abstract Over 50% of human papilloma positive head-and-neck cancer (HNCHPV+) patients harbor genomic-alterations in PIK3CA, leading to hyperactivation of the phosphatidylinositol-4, 5-bisphosphate 3-kinase (PI3K) pathway. Nevertheless, despite PI3K pathway activation in HNCHPV+ tumors, the anti-tumor activities of PI3K pathway inhibitors are moderate, mostly due to the emergence of resistance. Thus, for potent and long-term tumor management, drugs blocking resistance mechanisms should be combined with PI3K inhibitors. Here, we delineate the molecular mechanisms of the acquisition of resistance to two isoform-selective inhibitors of PI3K (isiPI3K), alpelisib (BYL719) and taselisib (GDC0032), in HNCHPV+ cell lines. By comparing the transcriptional landscape of isiPI3K-sensitive tumor cells with that of their corresponding isiPI3K-acquired-resistant tumor cells, we found upregulation of insulin growth factor 2 (IGF2) in the resistant cells. Mechanistically, we show that upon isiPI3K treatment, isiPI3K-sensitive tumor cells upregulate the expression of IGF2 to induce cell proliferation via the activation of the IGF1 receptor (IGF1R). Stimulating tumor cells with recombinant IGF2 limited isiPI3K efficacy and released treated cells from S phase arrest. Knocking-down IGF2 with siRNA, or blocking IGF1R with AEW541, resulted in superior anti-tumor activity of isiPI3K in vitro and ex vivo. In vivo, the combination of isiPI3K and IGF1R inhibitor induced stable disease in mice bearing either tumors generated by the HNCHPV+ UM-SCC47 cell line or HPV+ patient-derived xenografts. These findings indicate that IGF2 and the IGF2/IGF1R pathway may constitute new targets for combination therapies to enhance the efficacy of PI3K inhibitors for the treatment of HNCHPV+.
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Affiliation(s)
- Mai Badarni
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Science, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (M.B.); (M.P.); (B.B.); (K.M.Y.); (L.C.); (A.P.); (A.B.)
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (O.D.); (B.-Z.J.)
| | - Manu Prasad
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Science, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (M.B.); (M.P.); (B.B.); (K.M.Y.); (L.C.); (A.P.); (A.B.)
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (O.D.); (B.-Z.J.)
| | - Artemiy Golden
- Center of Life Sciences, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia; (A.G.); (E.K.)
| | - Baisali Bhattacharya
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Science, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (M.B.); (M.P.); (B.B.); (K.M.Y.); (L.C.); (A.P.); (A.B.)
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (O.D.); (B.-Z.J.)
| | - Liron Levin
- Bioinformatics Core Facility, National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel;
- The National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Ksenia M. Yegodayev
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Science, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (M.B.); (M.P.); (B.B.); (K.M.Y.); (L.C.); (A.P.); (A.B.)
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (O.D.); (B.-Z.J.)
| | - Orr Dimitstein
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (O.D.); (B.-Z.J.)
- Department of Otolaryngology—Head and Neck Surgery, Soroka University Medical Center, Beer-Sheva 84105, Israel
| | - Ben-Zion Joshua
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (O.D.); (B.-Z.J.)
- Department of Otorhinolaryngology and Head & Neck Surgery, Barzilay Medical Center, Ashkelon 7830604, Israel
| | - Limor Cohen
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Science, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (M.B.); (M.P.); (B.B.); (K.M.Y.); (L.C.); (A.P.); (A.B.)
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (O.D.); (B.-Z.J.)
| | - Ekaterina Khrameeva
- Center of Life Sciences, Skolkovo Institute of Science and Technology, 121205 Moscow, Russia; (A.G.); (E.K.)
| | - Dexin Kong
- School of Pharmaceutical Sciences, Tianjin Medical University, Tianjin 300070, China;
| | - Angel Porgador
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Science, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (M.B.); (M.P.); (B.B.); (K.M.Y.); (L.C.); (A.P.); (A.B.)
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (O.D.); (B.-Z.J.)
| | - Alex Braiman
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Science, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (M.B.); (M.P.); (B.B.); (K.M.Y.); (L.C.); (A.P.); (A.B.)
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (O.D.); (B.-Z.J.)
| | - Jennifer R. Grandis
- Department of Otolaryngology—Head and Neck Surgery, University of California San Francisco, San Francisco, CA 94143, USA;
| | - Barak Rotblat
- The National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
- Department of Life Sciences, Faculty of Life Science, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
- Correspondence: (B.R.); (M.E.); Tel.: +972-(0)8-6428806 (B.R.); +972-86428846 (M.E.)
| | - Moshe Elkabets
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Science, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (M.B.); (M.P.); (B.B.); (K.M.Y.); (L.C.); (A.P.); (A.B.)
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel; (O.D.); (B.-Z.J.)
- Correspondence: (B.R.); (M.E.); Tel.: +972-(0)8-6428806 (B.R.); +972-86428846 (M.E.)
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14
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Ianza A, Sirico M, Bernocchi O, Generali D. Role of the IGF-1 Axis in Overcoming Resistance in Breast Cancer. Front Cell Dev Biol 2021; 9:641449. [PMID: 33829018 PMCID: PMC8019779 DOI: 10.3389/fcell.2021.641449] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 03/04/2021] [Indexed: 12/12/2022] Open
Abstract
Over the last two decades, many studies have demonstrated that the insulin-like growth factor-1 (IGF-1) is involved in a number of patho-physiological processes, as well as in the development of different types of solid tumors, including breast cancer (BC). Preclinical and clinical data showed that IGF-1 receptor (R) is overexpressed and hyper-phosphorylated in several subtypes of BCs. The central implications of this pathway in tumor cell proliferation and metastasis make it an important therapeutic target. Moreover, the IGF-1 axis has shown strong interconnection with estrogen regulation and endocrine therapy, suggesting a possible solution to anti-estrogen resistance. IGF-1R might also interfere with other pivotal therapeutic strategies, such as anti HER2 treatments and mTOR inhibitors; several clinical trials are ongoing evaluating the role of IGF-1R inhibition in modulating resistance mechanisms to target therapies. Our aim is to offer an overview of the most recent and significant field of application of IGF-1 inhibitors and relevant therapeutic strategies, weighing their possible future impact on clinical practice.
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Affiliation(s)
- Anna Ianza
- Department of Medical, Surgery and Health Sciences, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | - Marianna Sirico
- Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, United Kingdom
- Breast Cancer Unit and Translational Research Unit, ASST Cremona, Cremona, Italy
| | - Ottavia Bernocchi
- Department of Medical, Surgery and Health Sciences, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | - Daniele Generali
- Department of Medical, Surgery and Health Sciences, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
- Breast Cancer Unit and Translational Research Unit, ASST Cremona, Cremona, Italy
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
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15
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Zhang M, Yu GY, Liu G, Liu WD. Circular RNA circ_0002137 regulated the progression of osteosarcoma through regulating miR-433-3p/ IGF1R axis. J Cell Mol Med 2021; 26:1806-1816. [PMID: 33621401 PMCID: PMC8918411 DOI: 10.1111/jcmm.16166] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 11/15/2020] [Accepted: 11/19/2020] [Indexed: 12/18/2022] Open
Abstract
Current clinical treatment targeting osteosarcoma (OS) are limited for OS patients with pulmonary metastasis or relapse, which led to high mortality (70%‐85%) for advanced osteosarcoma patients. Although ongoing efforts have been made to illustrate the mechanisms of tumorigenesis and progression in OS; however, it was far for us to learn a comprehensive molecular mechanism implies in OS development. In our study, we implicated a circRNA hsa_circ_0002137, which was higher expressed in osteosarcoma tumours compared with paracancerous tissue. The dysregulated expression pattern was also found in osteosarcoma cell lines. The role of circ_0002137 was explored via down‐ or up‐regulated experiments. It was proved that down‐regulation of circ_0002137 suppressed the progress of OS, including cell invasion, cell cycle and cell apoptosis. Furthermore, the correlation between circ_0002137 and miR‐433‐3p was predicted using bioinformatic tools and verified utilizing RNA pull‐down assay and luciferase reporter assay. Interestingly, we found that the inhibitory effect of circ_0002137 on OS was dependent of insulin‐like growth factor‐1 receptor (IGF1R). In conclusion, it was demonstrated that circ_0002137 could restrain the progression of OS through regulating miR‐433‐3p/IGF1R axis, providing a comprehensive landscape of circ_0002137 in the generation and development of OS.
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Affiliation(s)
- Meng Zhang
- Department of Orthopedic, The Affiliated Huaian NO. 1 people's Hospital of Nanjing Medical University, Huaian, China
| | - Guang-Yang Yu
- Department of Orthopedic, The Affiliated Huaian NO. 1 people's Hospital of Nanjing Medical University, Huaian, China
| | - Gang Liu
- Department of Orthopedic, The Affiliated Huaian NO. 1 people's Hospital of Nanjing Medical University, Huaian, China
| | - Wei-Dong Liu
- Department of Orthopedic, The Affiliated Huaian NO. 1 people's Hospital of Nanjing Medical University, Huaian, China
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16
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Feng Y, Dimitrov DS. Antibody-based therapeutics against components of the IGF system. Oncoimmunology 2021; 1:1390-1391. [PMID: 23243603 PMCID: PMC3518512 DOI: 10.4161/onci.20925] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The insulin-like growth factor I (IGF-I) receptor (IGF-1R) is overexpressed in most human neoplasms tested so far. Many tumors in young patients produce high levels of the IGF-1R ligands, IGF-I and IGF-II. Given the complexity of the IGF signaling pathway, its complete inhibition may require combination therapies with antibodies targeting both IGF-1R and IGF-II.
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Affiliation(s)
- Yang Feng
- Protein Interactions Group; FNLCF; NIH; Frederick, MD USA
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17
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Disrupting Insulin and IGF Receptor Function in Cancer. Int J Mol Sci 2021; 22:ijms22020555. [PMID: 33429867 PMCID: PMC7827299 DOI: 10.3390/ijms22020555] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 12/29/2020] [Accepted: 01/06/2021] [Indexed: 02/07/2023] Open
Abstract
The insulin and insulin-like growth factor (IGF) system plays an important role in regulating normal cell proliferation and survival. However, the IGF system is also implicated in many malignancies, including breast cancer. Preclinical studies indicate several IGF blocking approaches, such as monoclonal antibodies and tyrosine kinase inhibitors, have promising therapeutic potential for treating diseases. Uniformly, phase III clinical trials have not shown the benefit of blocking IGF signaling compared to standard of care arms. Clinical and laboratory data argue that targeting Type I IGF receptor (IGF1R) alone may be insufficient to disrupt this pathway as the insulin receptor (IR) may also be a relevant cancer target. Here, we review the well-studied role of the IGF system in regulating malignancies, the limitations on the current strategies of blocking the IGF system in cancer, and the potential future directions for targeting the IGF system.
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18
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Tamiro F, Weng AP, Giambra V. Targeting Leukemia-Initiating Cells in Acute Lymphoblastic Leukemia. Cancer Res 2021; 81:4165-4173. [PMID: 33414170 DOI: 10.1158/0008-5472.can-20-2571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 12/02/2020] [Accepted: 01/04/2021] [Indexed: 11/16/2022]
Abstract
The concept that different leukemias are developmentally distinct and, like in normal hematopoiesis, generated by restricted populations of cells named leukemia-initiating cells (LIC), is becoming more established. These cancer stem-like cells have been assumed to have unique properties, including the capability of self-renewing and giving rise to "differentiated" or non-LICs that make up the whole tumor. Cell populations enriched with LIC activity have been characterized in different hematopoietic malignancies, including human acute lymphoblastic leukemia (ALL). Related studies have also demonstrated that LICs are functionally distinct from bulk cells and modulated by distinct molecular signaling pathways and epigenetic mechanisms. Here we review several biological and clinical aspects related to LICs in ALL, including (i) immunophenotypic characterization of LIC-enriched subsets in human and mouse models of ALL, (ii) emerging therapeutics against regulatory signaling pathways involved in LIC progression and maintenance in T- and B-cell leukemias, (iii) novel epigenetic and age-related mechanisms of LIC propagation, and (iv) ongoing efforts in immunotherapy to eradicate LIC-enriched cell subsets in relapsed and refractory ALL cases. Current conventional treatments do not efficiently eliminate LICs. Therefore, innovative therapeutics that exclusively target LICs hold great promise for developing an effective cure for ALL.
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Affiliation(s)
- Francesco Tamiro
- Institute for Stem Cell Biology, Regenerative Medicine and Innovative Therapies (ISBReMIT), Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Andrew P Weng
- Terry Fox Laboratory, BC Cancer Agency, Vancouver, British Columbia, Canada
| | - Vincenzo Giambra
- Institute for Stem Cell Biology, Regenerative Medicine and Innovative Therapies (ISBReMIT), Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy.
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19
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Hu D, Jiang J, Lin Z, Zhang C, Moonasar N, Qian S. Identification of key genes and pathways in scleral extracellular matrix remodeling in glaucoma: Potential therapeutic agents discovered using bioinformatics analysis. Int J Med Sci 2021; 18:1554-1565. [PMID: 33746571 PMCID: PMC7976561 DOI: 10.7150/ijms.52846] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 01/05/2021] [Indexed: 12/29/2022] Open
Abstract
Background: Glaucoma is a leading cause of irreversible blindness. Remodeling of the scleral extracellular matrix (ECM) plays an important role in the development of glaucoma. The aim of this study was to identify the key genes and pathways for the ECM remodeling of sclera in glaucoma by bioinformatics analysis and to explore potential therapeutic agents for glaucoma management. Methods: Genes associated with glaucoma, sclera and ECM remodeling were detected using the text mining tool pubmed2ensembl, and assigned Gene Ontology (GO) biological process terms and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways using the GeneCodis program. A protein-protein interaction (PPI) network was constructed by STRING and visualized in Cytoscape, module analysis was performed using the Molecular Complex Detection (MCODE) plugin, and GO and KEGG analyses of the gene modules were performed using the Database of Annotation, Visualization and Integrated Discovery (DAVID) platform. The genes that clustered in the significant module were selected as core genes, and functions and pathways of the core genes were visualized using ClueGO and CluePedia. Lastly, the drug-gene interaction database was used to explore drug-gene interactions of the core genes to find drug candidates for glaucoma. Results: We identified 125 genes common to "Glaucoma", "Sclera", and "ECM remodeling" by text mining. Gene functional enrichment analysis yielded 30 enriched GO terms and 20 associated KEGG pathways. A PPI network that included 60 nodes with 249 edges was constructed, and three gene modules were obtained using the MCODE. We selected 13 genes that clustered in module 1 as core candidate genes that were associated mainly with ECM degradation and cell proliferation and division. The HIF-1 signaling pathway, FOXO signaling pathway, PI3K-Akt signaling pathway and TGFB signaling pathway were found to be enriched. We found that 11 of the 13 selected genes could be targeted by 26 existing drugs. Conclusions: The results showed that VEGFA, TGFB1, TGFB2, TGFB3, IGF2, IGF1, EGF, FN1, KNG1, TIMP1, SERPINE1, THBS1, and VWF were potential key genes involved to scleral ECM remodeling. Furthermore, 26 drugs were identified as potential therapeutic agents for glaucoma treatment and management.
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Affiliation(s)
- Di Hu
- Department of Ophthalmology and Vision Science, Eye and ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Junhong Jiang
- The Eye Hospital, School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zhong Lin
- The Eye Hospital, School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Cong Zhang
- The Eye Hospital, School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | | | - Shaohong Qian
- Department of Ophthalmology and Vision Science, Eye and ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China
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20
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Abstract
The insulin and insulin-like growth factor (IGF) family of proteins are part of a complex network that regulates cell proliferation and survival. While this system is undoubtedly important in prenatal development and postnatal cell growth, members of this family have been implicated in several different cancer types. Increased circulating insulin and IGF ligands have been linked to increased risk of cancer incidence. This observation has led to targeting the IGF system as a therapeutic strategy in a number of cancers. This chapter aims to describe the well-characterized biology of the IGF1R system, outline the rationale for targeting this system in cancer, summarize the clinical data as it stands, and discuss where we can go from here.
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21
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Buraschi S, Morcavallo A, Neill T, Stefanello M, Palladino C, Xu SQ, Belfiore A, Iozzo RV, Morrione A. Discoidin Domain Receptor 1 functionally interacts with the IGF-I system in bladder cancer. Matrix Biol Plus 2020; 6-7:100022. [PMID: 33543020 PMCID: PMC7852334 DOI: 10.1016/j.mbplus.2020.100022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/06/2020] [Accepted: 01/08/2020] [Indexed: 12/11/2022] Open
Abstract
Bladder cancer is one of the most common and aggressive cancers and, regardless of the treatment, often recurs and metastasizes. Thus, a better understanding of the mechanisms regulating urothelial tumorigenesis is critical for the design and implementation of rational therapeutic strategies. We previously discovered that the IGF-IR axis is critical for bladder cancer cell motility and invasion, suggesting a possible role in bladder cancer progression. However, IGF-IR depletion in metastatic bladder cancer cells only partially inhibited anchorage-independent growth. Significantly, metastatic bladder cancer cells have decreased IGF-IR levels but overexpressed the insulin receptor isoform A (IR-A), suggesting that the latter may play a more prevalent role than the IGF-IR in bladder tumor progression. The collagen receptor DDR1 cross-talks with both the IGF-IR and IR in breast cancer, and previous data suggest a role of DDR1 in bladder cancer. Here, we show that DDR1 is expressed in invasive and metastatic, but not in papillary, non-invasive bladder cancer cells. DDR1 is phosphorylated upon stimulation with IGF-I, IGF-II, and insulin, co-precipitates with the IGF-IR, and the IR-A and transient DDR1 depletion severely inhibits IGF-I-induced motility. We further demonstrate that DDR1 interacts with Pyk2 and non-muscle myosin IIA in ligands-dependent fashion, suggesting that it may link the IGF-IR and IR-A to the regulation of F-actin cytoskeleton dynamics. Similarly to the IGF-IR, DDR1 is upregulated in bladder cancer tissues compared to healthy tissue controls. Thus, our findings provide the first characterization of the molecular cross-talk between DDR1 and the IGF-I system and could lead to the identification of novel targets for therapeutic intervention in bladder cancer. Moreover, the expression profiles of IGF-IR, IR-A, DDR1, and downstream effectors could serve as a novel biomarker signature with diagnostic and prognostic significance. We discovered that the collagen receptor DDR1 cross-talks with insulin growth factor I (IGF-I) signaling in bladder cancer DDR1 co-precipitates with the IGF-IR and the insulin receptor (IR), and is phosphorylated upon stimulation with IGF ligands This collagen receptor modulates IGF-I-evoked motility and anchorage-independent growth DDR1 complexes with Pyk2, myosin IIA, IGF-IR and/or IR and regulates actin dynamics
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Affiliation(s)
- Simone Buraschi
- Department of Pathology, Anatomy and Cell Biology, and Cancer Cell Biology and Signaling Program, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Alaide Morcavallo
- Department of Urology, and Biology of Prostate Cancer Program, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Thomas Neill
- Department of Pathology, Anatomy and Cell Biology, and Cancer Cell Biology and Signaling Program, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Manuela Stefanello
- Department of Urology, and Biology of Prostate Cancer Program, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Chiara Palladino
- Department of Urology, and Biology of Prostate Cancer Program, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Shi-Qiong Xu
- Department of Urology, and Biology of Prostate Cancer Program, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Antonino Belfiore
- Endocrinology, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, Catania, Italy
| | - Renato V Iozzo
- Department of Pathology, Anatomy and Cell Biology, and Cancer Cell Biology and Signaling Program, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Andrea Morrione
- Department of Pathology, Anatomy and Cell Biology, and Cancer Cell Biology and Signaling Program, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA.,Department of Urology, and Biology of Prostate Cancer Program, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA.,Sbarro Institute for Cancer Research and Molecular Medicine and Center for Biotechnology, Department of Biology, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
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22
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Osher E, Macaulay VM. Therapeutic Targeting of the IGF Axis. Cells 2019; 8:E895. [PMID: 31416218 PMCID: PMC6721736 DOI: 10.3390/cells8080895] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 08/04/2019] [Accepted: 08/09/2019] [Indexed: 12/17/2022] Open
Abstract
The insulin like growth factor (IGF) axis plays a fundamental role in normal growth and development, and when deregulated makes an important contribution to disease. Here, we review the functions mediated by ligand-induced IGF axis activation, and discuss the evidence for the involvement of IGF signaling in the pathogenesis of cancer, endocrine disorders including acromegaly, diabetes and thyroid eye disease, skin diseases such as acne and psoriasis, and the frailty that accompanies aging. We discuss the use of IGF axis inhibitors, focusing on the different approaches that have been taken to develop effective and tolerable ways to block this important signaling pathway. We outline the advantages and disadvantages of each approach, and discuss progress in evaluating these agents, including factors that contributed to the failure of many of these novel therapeutics in early phase cancer trials. Finally, we summarize grounds for cautious optimism for ongoing and future studies of IGF blockade in cancer and non-malignant disorders including thyroid eye disease and aging.
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Affiliation(s)
- Eliot Osher
- Department of Oncology, University of Oxford, Oxford, OX3 7DQ, UK
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23
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Vella V, Malaguarnera R, Nicolosi ML, Morrione A, Belfiore A. Insulin/IGF signaling and discoidin domain receptors: An emerging functional connection. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:118522. [PMID: 31394114 DOI: 10.1016/j.bbamcr.2019.118522] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 07/30/2019] [Accepted: 07/31/2019] [Indexed: 12/28/2022]
Abstract
The insulin/insulin-like growth factor system (IIGFs) plays a fundamental role in the regulation of prenatal and postnatal growth, metabolism and homeostasis. As a consequence, dysregulation of this axis is associated with growth disturbance, type 2 diabetes, chronic inflammation and tumor progression. A functional crosstalk between IIGFs and discoidin domain receptors (DDRs) has been recently discovered. DDRs are non-integrin collagen receptors that canonically undergo slow and long-lasting autophosphorylation after binding to fibrillar collagen. While both DDR1 and DDR2 functionally interact with IIGFs, the crosstalk with DDR1 is so far better characterized. Notably, the IIGFs-DDR1 crosstalk presents a feed-forward mechanism, which does not require collagen binding, thus identifying novel non-canonical action of DDR1. Further studies are needed to fully explore the role of this IIGFs-DDRs functional loop as potential target in the treatment of inflammatory and neoplastic disorders.
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Affiliation(s)
- Veronica Vella
- Endocrinology, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, Catania, Italy
| | | | - Maria Luisa Nicolosi
- Endocrinology, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, Catania, Italy
| | - Andrea Morrione
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Antonino Belfiore
- Endocrinology, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, Catania, Italy.
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24
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An engineered analog of insulin-like growth factor 1 with reduced immunogenicity and retained mitogenicity. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.02.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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25
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Boguszewski CL, Boguszewski MCDS. Growth Hormone's Links to Cancer. Endocr Rev 2019; 40:558-574. [PMID: 30500870 DOI: 10.1210/er.2018-00166] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 10/23/2018] [Indexed: 12/13/2022]
Abstract
Several components of the GH axis are involved in tumor progression, and GH-induced intracellular signaling has been strongly associated with breast cancer susceptibility in genome-wide association studies. In the general population, high IGF-I levels and low IGF-binding protein-3 levels within the normal range are associated with the development of common malignancies, and components of the GH-IGF signaling system exhibit correlations with clinical, histopathological, and therapeutic parameters in cancer patients. Despite promising findings in preclinical studies, anticancer therapies targeting the GH-IGF signaling system have led to disappointing results in clinical trials. There is substantial evidence for some degree of protection against tumor development in several animal models and in patients with genetic defects associated with GH deficiency or resistance. In contrast, the link between GH excess and cancer risk in acromegaly patients is much less clear, and cancer screening in acromegaly has been a highly controversial issue. Recent studies have shown that increased life expectancy in acromegaly patients who attain normal GH and IGF-I levels is associated with more deaths due to age-related cancers. Replacement GH therapy in GH deficiency hypopituitary adults and short children has been shown to be safe when no other risk factors for malignancy are present. Nevertheless, the use of GH in cancer survivors and in short children with RASopathies, chromosomal breakage syndromes, or DNA-repair disorders should be carefully evaluated owing to an increased risk of recurrence, primary cancer, or second neoplasia in these individuals.
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Affiliation(s)
- Cesar Luiz Boguszewski
- Department of Internal Medicine, Endocrine Division (SEMPR), University Hospital, Federal University of Parana, Curitiba, Brazil
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26
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Gadelha MR, Kasuki L, Lim DST, Fleseriu M. Systemic Complications of Acromegaly and the Impact of the Current Treatment Landscape: An Update. Endocr Rev 2019; 40:268-332. [PMID: 30184064 DOI: 10.1210/er.2018-00115] [Citation(s) in RCA: 197] [Impact Index Per Article: 39.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 07/26/2018] [Indexed: 12/19/2022]
Abstract
Acromegaly is a chronic systemic disease with many complications and is associated with increased mortality when not adequately treated. Substantial advances in acromegaly treatment, as well as in the treatment of many of its complications, mainly diabetes mellitus, heart failure, and arterial hypertension, were achieved in the last decades. These developments allowed change in both prevalence and severity of some acromegaly complications and furthermore resulted in a reduction of mortality. Currently, mortality seems to be similar to the general population in adequately treated patients with acromegaly. In this review, we update the knowledge in complications of acromegaly and detail the effects of different acromegaly treatment options on these complications. Incidence of mortality, its correlation with GH (cumulative exposure vs last value), and IGF-I levels and the shift in the main cause of mortality in patients with acromegaly are also addressed.
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Affiliation(s)
- Mônica R Gadelha
- Neuroendocrinology Research Center/Endocrine Section and Medical School, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Neuroendocrine Section, Instituto Estadual do Cérebro Paulo Niemeyer, Secretaria Estadual de Saúde do Rio de Janeiro, Rio de Janeiro, Brazil.,Neuropathology and Molecular Genetics Laboratory, Instituto Estadual do Cérebro Paulo Niemeyer, Rio de Janeiro, Brazil
| | - Leandro Kasuki
- Neuroendocrinology Research Center/Endocrine Section and Medical School, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Neuroendocrine Section, Instituto Estadual do Cérebro Paulo Niemeyer, Secretaria Estadual de Saúde do Rio de Janeiro, Rio de Janeiro, Brazil.,Endocrine Unit, Hospital Federal de Bonsucesso, Rio de Janeiro, Brazil
| | - Dawn S T Lim
- Department of Endocrinology, Singapore General Hospital, Singapore, Singapore
| | - Maria Fleseriu
- Department of Endocrinology, Diabetes and Metabolism, Oregon Health and Science University, Portland, Oregon.,Department of Neurological Surgery, Oregon Health and Science University, Portland, Oregon.,Northwest Pituitary Center, Oregon Health and Science University, Portland, Oregon
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27
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Vaniotis G, Moffett S, Sulea T, Wang N, Elahi SM, Lessard E, Baardsnes J, Perrino S, Durocher Y, Frystyk J, Massie B, Brodt P. Enhanced anti-metastatic bioactivity of an IGF-TRAP re-engineered to improve physicochemical properties. Sci Rep 2018; 8:17361. [PMID: 30478273 PMCID: PMC6255772 DOI: 10.1038/s41598-018-35407-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 09/07/2018] [Indexed: 01/22/2023] Open
Abstract
The insulin-like growth factor (IGF) axis has been implicated in the progression of malignant disease and identified as a clinically important therapeutic target. Several IGF-1 receptor (IGF-1R) targeting drugs including humanized monoclonal antibodies have advanced to phase II/III clinical trials, but to date, have not progressed to clinical use, due, at least in part, to interference with insulin receptor signalling. We previously reported on the production of a soluble fusion protein consisting of the extracellular domain of human IGF-1R fused to the Fc portion of human IgG1 (first generation IGF-TRAP) that bound human IGF-1 and IGF-2 with a 3 log higher affinity than insulin. We showed that the IGF-TRAP had potent anti-cancer activity in several pre-clinical models of aggressive carcinomas. Here we report on the re-engineering of the IGF-TRAP with the aim of improving physicochemical properties and suitability for clinical applications. We show that cysteine-serine substitutions in the Fc hinge region of IGF-TRAP eliminated high-molecular-weight oligomerized species, while a further addition of a flexible linker, not only improved the pharmacokinetic profile, but also enhanced the therapeutic profile of the IGF-TRAP, as evaluated in an experimental colon carcinoma metastasis model. Dose-response profiles of the modified IGF-TRAPs correlated with their bio-availability profiles, as measured by the IGF kinase-receptor-activation (KIRA) assay, providing a novel, surrogate biomarker for drug efficacy. This study provides a compelling example of structure-based re-engineering of Fc-fusion-based biologics for better manufacturability that also significantly improved pharmacological parameters. It identifies the re-engineered IGF-TRAP as a potent anti-cancer therapeutic.
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Affiliation(s)
- George Vaniotis
- Department of Surgery, McGill University, Montreal Quebec, Canada
| | - Serge Moffett
- Department of Surgery, McGill University, Montreal Quebec, Canada
| | - Traian Sulea
- Institute of Parasitology, McGill University, Montreal Quebec, Canada
- Human Health Therapeutics Research Centre, National Research Council Canada, Montreal Quebec, Canada
| | - Ni Wang
- Department of Surgery, McGill University, Montreal Quebec, Canada
| | - S Mehdy Elahi
- Human Health Therapeutics Research Centre, National Research Council Canada, Montreal Quebec, Canada
| | - Etienne Lessard
- Human Health Therapeutics Research Centre, National Research Council Canada, Montreal Quebec, Canada
| | - Jason Baardsnes
- Human Health Therapeutics Research Centre, National Research Council Canada, Montreal Quebec, Canada
| | | | - Yves Durocher
- Human Health Therapeutics Research Centre, National Research Council Canada, Montreal Quebec, Canada
| | - Jan Frystyk
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Bernard Massie
- Human Health Therapeutics Research Centre, National Research Council Canada, Montreal Quebec, Canada
| | - Pnina Brodt
- Department of Surgery, McGill University, Montreal Quebec, Canada.
- Department of Medicine, McGill University, Montreal Quebec, Canada.
- Department of Oncology, McGill University, Montreal Quebec, Canada.
- Cancer Research Program, Research Institute of the McGill University Health Center, Montreal Quebec, Canada.
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28
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Khalil A, Jameson MJ. Downregulation of IGF1R Expression Inhibits Growth and Enhances Cisplatin Sensitivity of Head and Neck Squamous Cell Carcinoma Cells In Vitro. Discov Oncol 2018; 10:11-23. [PMID: 30350263 DOI: 10.1007/s12672-018-0352-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 10/03/2018] [Indexed: 01/07/2023] Open
Abstract
A lentivirus-mediated doxycycline-inducible pTRIPZ shRNAmir plasmid targeting IGF1R transcript was transfected into two head and neck squamous cell carcinoma (HNSCC) cell lines to silence IGF1R expression and to assess the effect of its downregulation on cisplatin sensitivity in vitro. In Cal27-regIGF1R and SCC25-regIGF1R cell lines, IGF1R protein expression was reduced by more than 90% after 72 h of incubation with doxycycline. Both basal and IGF-stimulated pIGF1R, pAKT, and pERK were significantly reduced, without influence on total AKT and ERK expression. Downregulation of the IGF1R was associated with decreased proliferation and cell viability in both cell lines. Reduced IGF1R expression was also associated with increased sub-G0/G1-phase and G0/G1-phase populations and decreased S-phase and G2/M-phase populations. IGF1R downregulation enhanced sensitivity to cisplatin with decrease of cisplatin IC50 from 15 to 7.1 in Cal27-regIGF1R cells and from 11 to 6.3 in SCC25-regIGF1R cells. Cisplatin exhibited increased pro-apoptotic activity by annexin V staining and PARP cleavage in both cells lines when cultured in doxycycline. Thus, in two HNSCC cell lines in vitro, reduced IGF1R expression results in reduced growth rate and increased sensitivity to cisplatin. Thus, IGF1R downregulation and/or inhibition may serve as a useful adjunct to platinum-based cytotoxic chemotherapy.
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Affiliation(s)
- Ashraf Khalil
- Department of Otolaryngology - Head and Neck Surgery, Division of Head and Neck Oncologic and Microvascular Surgery, University of Virginia Health System, Charlottesville, VA, USA. .,Department of Biochemistry and Molecular Diagnostics, National Liver Institute, Menoufiya University, Shebin El Kom, Egypt.
| | - Mark J Jameson
- Department of Otolaryngology - Head and Neck Surgery, Division of Head and Neck Oncologic and Microvascular Surgery, University of Virginia Health System, Charlottesville, VA, USA
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29
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Mancarella C, Scotlandi K. IGF system in sarcomas: a crucial pathway with many unknowns to exploit for therapy. J Mol Endocrinol 2018; 61:T45-T60. [PMID: 29273680 DOI: 10.1530/jme-17-0250] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 12/22/2017] [Indexed: 12/22/2022]
Abstract
The insulin-like growth factor (IGF) system has gained substantial interest due to its involvement in regulating cell proliferation, differentiation and survival during anoikis and after conventional and targeted therapies. However, results from clinical trials have been largely disappointing, with only a few but notable exceptions, such as trials targeting sarcomas, especially Ewing sarcoma. This review highlights key studies focusing on IGF signaling in sarcomas, specifically studies underscoring the properties that make this system an attractive therapeutic target and identifies new relationships that may be exploited. This review discusses the potential roles of IGF2 mRNA-binding proteins (IGF2BPs), discoidin domain receptors (DDRs) and metalloproteinase pregnancy-associated plasma protein-A (PAPP-A) in regulating the IGF system. Deeper investigation of these novel regulators of the IGF system may help us to further elucidate the spatial and temporal control of the IGF axis, as understanding the control of this axis is essential for future clinical studies.
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Affiliation(s)
- Caterina Mancarella
- Experimental Oncology Lab, CRS Development of Biomolecular Therapies, Orthopaedic Rizzoli Institute, Bologna, Italy
| | - Katia Scotlandi
- Experimental Oncology Lab, CRS Development of Biomolecular Therapies, Orthopaedic Rizzoli Institute, Bologna, Italy
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30
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Rayes RF, Milette S, Fernandez MC, Ham B, Wang N, Bourdeau F, Perrino S, Yakar S, Brodt P. Loss of neutrophil polarization in colon carcinoma liver metastases of mice with an inducible, liver-specific IGF-I deficiency. Oncotarget 2018; 9:15691-15704. [PMID: 29644002 PMCID: PMC5884657 DOI: 10.18632/oncotarget.24593] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 01/19/2018] [Indexed: 11/25/2022] Open
Abstract
The growth of cancer metastases in the liver depends on a permissive interaction with the hepatic microenvironment and neutrophils can contribute to this interaction, either positively or negatively, depending on their phenotype. Here we investigated the role of IGF-I in the control of the tumor microenvironment in the liver, using mice with a conditional, liver-specific, IGF-I deficiency (iLID) induced by a single tamoxifen injection. In mice that had a sustained (3 weeks) IGF-I deficiency prior to the intrasplenic/portal inoculation of colon carcinoma MC-38 cells, we observed an increase in neutrophil accumulation in the liver relative to controls. However, unlike controls, these neutrophils did not acquire the (anti-inflammatory) tumor-promoting phenotype, as evidenced by retention of high ICAM-1 expression and nitric oxide production and low CXCR4, CCL5, and VEGF expression and arginase production, all characteristic of the (pro-inflammatory) phenotype. This coincided with an increase in apoptotic tumor cells and reduced metastasis. Neutrophils isolated from these mice also had reduced IGF-IR expression levels. These changes were not observed in iLID mice with a short-term (2 days) IGF-I depletion, despite a 70% reduction in their circulating IGF-I levels, indicating that a sustained IGF-I deficiency was necessary to alter the neutrophil phenotype. Similar results were obtained with the highly metastatic Lewis lung carcinoma subline H-59 cells and in mice injected with an IGF-Trap that blocks IGF-IR signaling by reducing ligand bioavailability. Our results implicate the IGF axis in neutrophil polarization and the induction of a pro-metastatic microenvironment in the liver.
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Affiliation(s)
- Roni F. Rayes
- Departments of Surgery, McGill University and the McGill University Health Centre, Montréal, QC, Canada
| | - Simon Milette
- Departments of Surgery, McGill University and the McGill University Health Centre, Montréal, QC, Canada
| | - Maria Celia Fernandez
- Departments of Surgery, McGill University and the McGill University Health Centre, Montréal, QC, Canada
| | - Boram Ham
- Departments of Surgery, McGill University and the McGill University Health Centre, Montréal, QC, Canada
| | - Ni Wang
- Departments of Surgery, McGill University and the McGill University Health Centre, Montréal, QC, Canada
| | - France Bourdeau
- Departments of Surgery, McGill University and the McGill University Health Centre, Montréal, QC, Canada
| | - Stephanie Perrino
- Departments of Surgery, McGill University and the McGill University Health Centre, Montréal, QC, Canada
| | - Shoshana Yakar
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, NY, USA
| | - Pnina Brodt
- Departments of Surgery, McGill University and the McGill University Health Centre, Montréal, QC, Canada
- Department of Medicine, McGill University and the McGill University Health Centre, Montréal, QC, Canada
- Department of Oncology, McGill University and the McGill University Health Centre, Montréal, QC, Canada
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31
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Björner S, Rosendahl AH, Simonsson M, Markkula A, Jirström K, Borgquist S, Rose C, Ingvar C, Jernström H. Combined and individual tumor-specific expression of insulin-like growth factor-I receptor, insulin receptor and phospho-insulin-like growth factor-I receptor/insulin receptor in primary breast cancer: Implications for prognosis in different treatment groups. Oncotarget 2018; 8:9093-9107. [PMID: 28030849 PMCID: PMC5354717 DOI: 10.18632/oncotarget.14082] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 12/15/2016] [Indexed: 12/14/2022] Open
Abstract
Clinical trials examining insulin-like growth factor-I receptor (IGF1R)-targeting strategies have emphasized that better predictive biomarkers are required to improve patient selection. Immunohistochemical tumor-specific protein expression of IGF1R, insulin receptor (InsR), and phosphorylated IGF1R/InsR (pIGF1R/InsR) individually and combined in relation to breast cancer prognosis was evaluated in a population-based cohort of 1,026 primary invasive breast cancer patients without preoperative treatment diagnosed in Sweden. IGF1R (n = 923), InsR (n = 900), and pIGF1R/InsR (n = 904) combined cytoplasmic and membrane staining was dichotomized. IGF1Rstrong/InsRmod/strong/pIGF1R/InsRpos tumors were borderline associated with 2-fold risk for events, HRadj (2.00; 95%CI 0.96-4.18). Combined IGF1R and pIGF1R/InsR status only impacted prognosis in patients with InsRmod/strong expressing tumors (Pinteraction = 0.041). IGF1Rstrong expression impacted endocrine treatment response differently depending on patients’ age and type of endocrine therapy. Phospho-IGF1R/InsRpos was associated with lower risk for events among non-endocrine-treated patients irrespective of ER status, HRadj (0.32; 95%CI 0.16-0.63), but not among endocrine-treated patients (Pinteraction = 0.024). In non-endocrine-treated patients, pIGF1R/InsRpos was associated with lower risk for events after radiotherapy, HRadj (0.31; 95%CI 0.12-0.80), and chemotherapy, HRadj (0.29; 95%CI 0.09-0.99). This study highlights the complexity of IGF hetero-and homodimer signaling network and its interplay with endocrine treatment, suggesting that combinations of involved factors may improve patient selection for IGF1R-targeted therapy.
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Affiliation(s)
- Sofie Björner
- Department of Clinical Sciences Lund, Lund University Faculty of Medicine, Oncology and Pathology, Lund, Sweden
| | - Ann H Rosendahl
- Department of Clinical Sciences Lund, Lund University Faculty of Medicine, Oncology and Pathology, Lund, Sweden
| | - Maria Simonsson
- Department of Clinical Sciences Lund, Lund University Faculty of Medicine, Oncology and Pathology, Lund, Sweden
| | - Andrea Markkula
- Department of Clinical Sciences Lund, Lund University Faculty of Medicine, Oncology and Pathology, Lund, Sweden
| | - Karin Jirström
- Department of Clinical Sciences Lund, Lund University Faculty of Medicine, Oncology and Pathology, Lund, Sweden
| | - Signe Borgquist
- Department of Clinical Sciences Lund, Lund University Faculty of Medicine, Oncology and Pathology, Lund, Sweden.,Department of Oncology and Haematology, Skåne University Hospital, Sweden
| | - Carsten Rose
- CREATE Health and Department of Immunotechnology, Lund University, Medicon Village, Lund, Sweden
| | - Christian Ingvar
- Department of Clinical Sciences Lund, Lund University, Skåne University Hospital, Surgery, Lund, Sweden
| | - Helena Jernström
- Department of Clinical Sciences Lund, Lund University Faculty of Medicine, Oncology and Pathology, Lund, Sweden
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32
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Christopoulos PF, Corthay A, Koutsilieris M. Aiming for the Insulin-like Growth Factor-1 system in breast cancer therapeutics. Cancer Treat Rev 2017; 63:79-95. [PMID: 29253837 DOI: 10.1016/j.ctrv.2017.11.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 11/29/2017] [Accepted: 11/30/2017] [Indexed: 12/23/2022]
Abstract
Despite the major discoveries occurred in oncology the recent years, breast malignancies remain one of the most common causes of cancer-related deaths for women in developed countries. Development of HER2-targeting drugs has been considered a breakthrough in anti-cancer approaches and alluded to the potential of targeting growth factors in breast cancer (BrCa) therapeutics. More than twenty-five years have passed since the Insulin-like Growth Factor-1 (IGF-1) system was initially recognized as a potential target candidate in BrCa therapy. To date, a growing body of studies have implicated the IGF-1 signaling with the BrCa biology. Despite the promising experimental evidence, the impression from clinical trials is rather disappointing. Several reasons may account for this and the last word regarding the efficacy of this system as a target candidate in BrCa therapeutics is probably not written yet. Herein, we provide the theoretical basis, as well as, a comprehensive overview of the current literature, regarding the different strategies targeting the various components of the IGF-1/IGF-1R axis in several pathophysiological aspects of BrCa, including the tumor micro-environment and cancer stemness. In addition, we review the rationale for targeting the IGF-1 system in the different BrCa molecular subtypes and in treatment resistant breast tumors with a focus on both the molecular mechanisms and on the clinical perspectives of such approaches in specific population subgroups. We also discuss the future challenges, as well as, the development of novel molecules and strategies targeting the system and suggest potential improvements in the field.
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Affiliation(s)
- Panagiotis F Christopoulos
- Department of Experimental Physiology, Medical School, National & Kapodistrian University of Athens, Athens, Greece; Tumor Immunology Lab, Department of Pathology, Rikshospitalet, Oslo University Hospital and University of Oslo, Oslo, Norway; Department of Medical Biology, Faculty of Health Sciences, UiT the Arctic University of Norway, Tromsø, Norway.
| | - Alexandre Corthay
- Tumor Immunology Lab, Department of Pathology, Rikshospitalet, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Michael Koutsilieris
- Department of Experimental Physiology, Medical School, National & Kapodistrian University of Athens, Athens, Greece
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33
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Belfiore A, Malaguarnera R, Vella V, Lawrence MC, Sciacca L, Frasca F, Morrione A, Vigneri R. Insulin Receptor Isoforms in Physiology and Disease: An Updated View. Endocr Rev 2017; 38:379-431. [PMID: 28973479 PMCID: PMC5629070 DOI: 10.1210/er.2017-00073] [Citation(s) in RCA: 248] [Impact Index Per Article: 35.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 06/13/2017] [Indexed: 02/08/2023]
Abstract
The insulin receptor (IR) gene undergoes differential splicing that generates two IR isoforms, IR-A and IR-B. The physiological roles of IR isoforms are incompletely understood and appear to be determined by their different binding affinities for insulin-like growth factors (IGFs), particularly for IGF-2. Predominant roles of IR-A in prenatal growth and development and of IR-B in metabolic regulation are well established. However, emerging evidence indicates that the differential expression of IR isoforms may also help explain the diversification of insulin and IGF signaling and actions in various organs and tissues by involving not only different ligand-binding affinities but also different membrane partitioning and trafficking and possibly different abilities to interact with a variety of molecular partners. Of note, dysregulation of the IR-A/IR-B ratio is associated with insulin resistance, aging, and increased proliferative activity of normal and neoplastic tissues and appears to sustain detrimental effects. This review discusses novel information that has generated remarkable progress in our understanding of the physiology of IR isoforms and their role in disease. We also focus on novel IR ligands and modulators that should now be considered as an important strategy for better and safer treatment of diabetes and cancer and possibly other IR-related diseases.
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Affiliation(s)
- Antonino Belfiore
- Endocrinology, Department of Health Sciences, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | - Roberta Malaguarnera
- Endocrinology, Department of Health Sciences, University Magna Graecia of Catanzaro, 88100 Catanzaro, Italy
| | - Veronica Vella
- School of Human and Social Sciences, University Kore of Enna, via della Cooperazione, 94100 Enna, Italy
| | - Michael C. Lawrence
- Structural Biology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Laura Sciacca
- Endocrinology, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, 95122 Catania, Italy
| | - Francesco Frasca
- Endocrinology, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, 95122 Catania, Italy
| | - Andrea Morrione
- Department of Urology and Biology of Prostate Cancer Program, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania 19107
| | - Riccardo Vigneri
- Endocrinology, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, 95122 Catania, Italy
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34
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Simpson A, Petnga W, Macaulay VM, Weyer-Czernilofsky U, Bogenrieder T. Insulin-Like Growth Factor (IGF) Pathway Targeting in Cancer: Role of the IGF Axis and Opportunities for Future Combination Studies. Target Oncol 2017; 12:571-597. [PMID: 28815409 PMCID: PMC5610669 DOI: 10.1007/s11523-017-0514-5] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Despite a strong preclinical rationale for targeting the insulin-like growth factor (IGF) axis in cancer, clinical studies of IGF-1 receptor (IGF-1R)-targeted monotherapies have been largely disappointing, and any potential success has been limited by the lack of validated predictive biomarkers for patient enrichment. A large body of preclinical evidence suggests that the key role of the IGF axis in cancer is in driving treatment resistance, via general proliferative/survival mechanisms, interactions with other mitogenic signaling networks, and class-specific mechanisms such as DNA damage repair. Consequently, combining IGF-targeted agents with standard cytotoxic agents, other targeted agents, endocrine therapies, or immunotherapies represents an attractive therapeutic approach. Anti-IGF-1R monoclonal antibodies (mAbs) do not inhibit IGF ligand 2 (IGF-2) activation of the insulin receptor isoform-A (INSR-A), which may limit their anti-proliferative activity. In addition, due to their lack of specificity, IGF-1R tyrosine kinase inhibitors are associated with hyperglycemia as a result of interference with signaling through the classical metabolic INSR-B isoform; this may preclude their use at clinically effective doses. Conversely, IGF-1/IGF-2 ligand-neutralizing mAbs inhibit proliferative/anti-apoptotic signaling via IGF-1R and INSR-A, without compromising the metabolic function of INSR-B. Therefore, combination regimens that include these agents may be more efficacious and tolerable versus IGF-1R-targeted combinations. Herein, we review the preclinical and clinical experience with IGF-targeted therapies to-date, and discuss the rationale for future combination approaches as a means to overcome treatment resistance.
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Affiliation(s)
- Aaron Simpson
- Department of Oncology, University of Oxford, Oxford, UK
| | | | | | | | - Thomas Bogenrieder
- Boehringer Ingelheim RCV, Dr. Boehringer Gasse 5-11, 1121, Vienna, Austria.
- Department of Urology, University Hospital Grosshadern, Ludwig-Maximilians-University, Marchioninistrasse 15, 81377, Munich, Germany.
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35
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Liefers-Visser JAL, Meijering RAM, Reyners AKL, van der Zee AGJ, de Jong S. IGF system targeted therapy: Therapeutic opportunities for ovarian cancer. Cancer Treat Rev 2017; 60:90-99. [PMID: 28934637 DOI: 10.1016/j.ctrv.2017.08.012] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 08/28/2017] [Accepted: 08/30/2017] [Indexed: 12/11/2022]
Abstract
The insulin-like growth factor (IGF) system comprises multiple growth factor receptors, including insulin-like growth factor 1 receptor (IGF-1R), insulin receptor (IR) -A and -B. These receptors are activated upon binding to their respective growth factor ligands, IGF-I, IGF-II and insulin, and play an important role in development, maintenance, progression, survival and chemotherapeutic response of ovarian cancer. In many pre-clinical studies anti-IGF-1R/IR targeted strategies proved effective in reducing growth of ovarian cancer models. In addition, anti-IGF-1R targeted strategies potentiated the efficacy of platinum based chemotherapy. Despite the vast amount of encouraging and promising pre-clinical data, anti-IGF-1R/IR targeted strategies lacked efficacy in the clinic. The question is whether targeting the IGF-1R/IR signaling pathway still holds therapeutic potential. In this review we address the complexity of the IGF-1R/IR signaling pathway, including receptor heterodimerization within and outside the IGF system and downstream signaling. Further, we discuss the implications of this complexity on current targeted strategies and indicate therapeutic opportunities for successful targeting of the IGF-1R/IR signaling pathway in ovarian cancer. Multiple-targeted approaches circumventing bidirectional receptor tyrosine kinase (RTK) compensation and prevention of system rewiring are expected to have more therapeutic potential.
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Affiliation(s)
- J A L Liefers-Visser
- Department of Medical Oncology, Cancer Research Center Groningen, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - R A M Meijering
- Department of Medical Oncology, Cancer Research Center Groningen, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - A K L Reyners
- Department of Medical Oncology, Cancer Research Center Groningen, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - A G J van der Zee
- Department of Gynecologic Oncology, Cancer Research Center Groningen, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - S de Jong
- Department of Medical Oncology, Cancer Research Center Groningen, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
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36
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Lee HY, Schaefer G, Lesaca I, Lee CV, Wong PY, Jiang G. "Two-in-One" approach for bioassay selection for dual specificity antibodies. J Immunol Methods 2017; 448:74-79. [PMID: 28579366 DOI: 10.1016/j.jim.2017.05.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 05/26/2017] [Accepted: 05/31/2017] [Indexed: 10/19/2022]
Abstract
Dual specific antibodies and bispecific antibodies that recognize two different antigen targets are currently being regarded as very effective therapeutics for complex human diseases. While effective, designing and developing a bioassay strategy for dual specific antibodies that is reflective of the mechanism of action (MoA) and also measures the dual activities of antibodies pose unique and exciting challenges. An important question asked while developing a bioassay for dual specific antibodies is, "How many bioassays will be needed, one bioassay or two separate bioassays?" Here we present an approach of using one bioassay for a dual specific antibody that targets two receptors in signaling pathways. The presented assay is able to measure the antibody effects on both target bindings, which would not be achievable using two separate assays. Furthermore, this assay can detect changes in the binding of either target, which impact overall efficacy of the antibody. Its improved sensitivity enables substituting two binding assays with this one bioassay for lot release and stability testing to measure any changes on either target binding, ensuring consistency between lots. This is a single-bioassay approach for a dual specific antibody that is MoA reflective of the intended therapeutic indication. The demonstrated assay development and bridging study strategy for this bioassay for a dual specific mAb1 could be applicable to the other dual specific, bispecific antibodies, and antibodies used for combination therapy.
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Affiliation(s)
- Ho Young Lee
- Biological Technologies, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Gabriele Schaefer
- Biological Technologies, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Ingrid Lesaca
- Biological Technologies, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Chingwei Vivian Lee
- Biological Technologies, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Pin Yee Wong
- Biological Technologies, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA.
| | - Guoying Jiang
- Biological Technologies, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA.
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37
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Stromal-derived IGF2 promotes colon cancer progression via paracrine and autocrine mechanisms. Oncogene 2017; 36:5341-5355. [PMID: 28534511 DOI: 10.1038/onc.2017.116] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 02/25/2017] [Accepted: 03/23/2017] [Indexed: 12/31/2022]
Abstract
The insulin-like growth factor (IGF)2/IGF1 receptor (IGF1R) signaling axis has an important role in intestinal carcinogenesis and overexpression of IGF2 is an accepted risk factor for colorectal cancer (CRC) development. Genetic amplifications and loss of imprinting contribute to the upregulation of IGF2, but insufficiently explain the extent of IGF2 expression in a subset of patients. Here, we show that IGF2 was specifically induced in the tumor stroma of CRC and identified cancer-associated fibroblasts (CAFs) as the major source. Further, we provide functional evidence that stromal IGF2, via the paracrine IGF1R/insulin receptor axis, activated pro-survival AKT signaling in CRC cell lines. In addition to its effects on malignant cells, autocrine IGF2/IGF1R signaling in CAFs induced myofibroblast differentiation in terms of alpha-smooth muscle actin expression and contractility in floating collagen gels. This was further augmented in concert with transforming growth factor-β (TGFβ) signaling suggesting a cooperative mechanism. However, we demonstrated that IGF2 neither induced TGFβ/smooth muscle actin/mothers against decapentaplegic (SMAD) signaling nor synergized with TGFβ to hyperactivate this pathway in two dimensional and three dimensional cultures. IGF2-mediated physical matrix remodeling by CAFs, but not changes in extracellular matrix-modifying proteases or other secreted factors acting in a paracrine manner on/in cancer cells, facilitated subsequent tumor cell invasion in organotypic co-cultures. Consistently, colon cancer cells co-inoculated with CAFs expressing endogenous IGF2 in mouse xenograft models exhibited elevated invasiveness and dissemination capacity, as well as increased local tumor regrowth after primary tumor resection compared with conditions with IGF2-deficient CAFs. In line, expression of IGF2 correlated with elevated relapse rates and poor survival in CRC patients. In agreement with our results, high-level coexpression of IGF2 and TGFβ was predicting adverse outcome with higher accuracy than increased expression of the individual genes alone. Taken together, we demonstrate that stroma-induced IGF2 promotes colon cancer progression in a paracrine and autocrine manner and propose IGF2 as potential target for tumor stroma cotargeting strategies.
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Roudnicky F, Dieterich LC, Poyet C, Buser L, Wild P, Tang D, Camenzind P, Ho CH, Otto VI, Detmar M. High expression of insulin receptor on tumour-associated blood vessels in invasive bladder cancer predicts poor overall and progression-free survival. J Pathol 2017; 242:193-205. [PMID: 28295307 DOI: 10.1002/path.4892] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 01/15/2017] [Accepted: 02/24/2017] [Indexed: 12/12/2022]
Abstract
Bladder cancer is a frequently recurring disease with a very poor prognosis once progressed to invasive stages, and tumour-associated blood vessels play a crucial role in this process. In order to identify novel biomarkers associated with progression, we isolated blood vascular endothelial cells (BECs) from human invasive bladder cancers and matched normal bladder tissue, and found that tumour-associated BECs greatly up-regulated the expression of insulin receptor (INSR). High expression of INSR on BECs of invasive bladder cancers was significantly associated with shorter progression-free and overall survival. Furthermore, increased expression of the INSR ligand IGF-2 in invasive bladder cancers was associated with reduced overall survival. INSR may therefore represent a novel biomarker to predict cancer progression. Mechanistically, we observed pronounced hypoxia in human bladder cancer tissue, and found a positive correlation between the expression of the hypoxia marker gene GLUT1 and vascular INSR expression, indicating that hypoxia drives INSR expression in tumour-associated blood vessels. In line with this, exposure of cultured BECs and human bladder cancer cell lines to hypoxia led to increased expression of INSR and IGF-2, respectively, and IGF-2 increased BEC migration through the activation of INSR in vitro. Taken together, we identified vascular INSR expression as a potential biomarker for progression in bladder cancer. Furthermore, our data suggest that IGF-2/INSR mediated paracrine crosstalk between bladder cancer cells and endothelial cells is functionally involved in tumour angiogenesis and may thus represent a new therapeutic target. Copyright © 2017 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Filip Roudnicky
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | | | - Cedric Poyet
- Department of Urology, University Hospital Zurich, Zurich, Switzerland
| | - Lorenz Buser
- Institute of Surgical Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Peter Wild
- Institute of Surgical Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Dave Tang
- Division of Genomic Technologies, RIKEN Center for Life Science Technologies, Yokohama, Japan
| | - Peter Camenzind
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | - Chien Hsien Ho
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | - Vivianne I Otto
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | - Michael Detmar
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
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Abstract
The type I insulin-like growth factor-1 receptor is a well-described target in breast cancer and multiple clinical trials examining insulin-like growth factor-1 receptor have been completed. Unfortunately, monoclonal antibodies and tyrosine kinase inhibitors targeting insulin-like growth factor-1 receptor failed in phase III breast clinical trials for several reasons. First, insulin-like growth factor-1 receptor antibody therapy resulted in hyperglycemia and metabolic syndrome most likely due to disruption of insulin-like growth factor-1 homeostasis and subsequent growth hormone elevation. Growth hormone elevation induces insulin resistance, hence a subsequent elevation of insulin and the potential for activation of insulin receptor. Second, the insulin-like growth factor-1 receptor and insulin receptor are highly homologous in amino acid sequence, structure, and function. These two receptors bind insulin, insulin-like growth factor-1 and insulin-like growth factor-2, to regulate glucose uptake and other cellular functions. Hybrid receptors composed of one chain of insulin-like growth factor-1 receptor and insulin receptor also participate in signaling. Third, since all the monoclonal antibodies were specific for insulin-like growth factor-1 receptor, any pathophysiologic role for insulin receptor was not inhibited. While the insulin-like growth factor-1 receptor tyrosine kinase inhibitors effectively inhibited both insulin-like growth factor-1 receptor and insulin receptor, these drugs are not being further developed likely due to their metabolic toxicities. Insulin-like growth factor-1/2 neutralizing antibodies are still being studied in early phase clinical trials. Perhaps a more comprehensive strategy of targeting the insulin-like growth factor-1 receptor network would be successful. For example, targeting receptor, ligand and downstream signaling molecules such as phosphatidylinositol 3′-kinase or particularly the insulin receptor substrate adapter proteins might result in a complete blockade of insulin-like growth factor-1 receptor/insulin receptor biological functions.
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Affiliation(s)
- Roudy Chiminch Ekyalongo
- Masonic Cancer Center, University of Minnesota, MMC 806, 420 Delaware Street SE, Minneapolis, MN 55455, USA
| | - Douglas Yee
- Masonic Cancer Center, University of Minnesota, MMC 806, 420 Delaware Street SE, Minneapolis, MN 55455, USA
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McDermott MSJ, Canonici A, Ivers L, Browne BC, Madden SF, O'Brien NA, Crown J, O'Donovan N. Dual inhibition of IGF1R and ER enhances response to trastuzumab in HER2 positive breast cancer cells. Int J Oncol 2017; 50:2221-2228. [PMID: 28498399 DOI: 10.3892/ijo.2017.3976] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 04/05/2017] [Indexed: 11/06/2022] Open
Abstract
Although HER2 targeted therapies have improved prognosis for HER2 positive breast cancer, HER2 positive cancers which co-express ER have poorer response rates to standard HER2 targeted therapies, combined with chemotherapy, than HER2 positive/ER negative breast cancer. Administration of hormone therapy concurrently with chemotherapy and HER2 targeted therapy is generally not recommended. Using publically available gene expression datasets we found that high expression of IGF1R is associated with shorter disease-free survival in patients whose tumors are ER positive and HER2 positive. IGF1R is frequently expressed in HER2 positive breast cancer and there is significant evidence for crosstalk between IGF1R and both HER2 and ER. Therefore, we evaluated the therapeutic potential of targeting ER and IGF1R in cell line models of HER2/ER/IGF1R positive breast cancer, using tamoxifen and two IGF1R targeted tyrosine kinase inhibitors (NVP-AEW541 and BMS-536924). Dual inhibition of ER and IGF1R enhanced growth inhibition in the four HER2 positive cell lines tested and caused an increase in cell cycle arrest in G1 in BT474 cells. In addition, combined treatment with trastuzumab, tamoxifen and either of the IGF1R TKIs enhanced response compared to dual targeting strategies in three of the four HER2 positive breast cancer cell lines tested. Furthermore, in a cell line model of trastuzumab-resistant HER2 positive breast cancer (BT474/Tr), tamoxifen combined with an IGF1R TKI produced a similar enhanced response as observed in the parental BT474 cells suggesting that this combination may overcome acquired trastuzumab resistance in this model. Combining ER and IGF1R targeting with HER2 targeted therapies may be an alternative to HER2 targeted therapy and chemotherapy for patients with HER2/ER/IGF1R positive breast cancer.
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Affiliation(s)
- Martina S J McDermott
- National Institute for Cellular Biotechnology, Dublin City University, Dublin 9, Ireland
| | - Alexandra Canonici
- National Institute for Cellular Biotechnology, Dublin City University, Dublin 9, Ireland
| | - Laura Ivers
- National Institute for Cellular Biotechnology, Dublin City University, Dublin 9, Ireland
| | - Brigid C Browne
- National Institute for Cellular Biotechnology, Dublin City University, Dublin 9, Ireland
| | - Stephen F Madden
- Population Health Sciences Division, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Neil A O'Brien
- Department of Medicine, Division of Haematology/Oncology, David Geffen School of Medicine, UCLA, Los Angeles, CA 90095, USA
| | - John Crown
- National Institute for Cellular Biotechnology, Dublin City University, Dublin 9, Ireland
| | - Norma O'Donovan
- National Institute for Cellular Biotechnology, Dublin City University, Dublin 9, Ireland
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Martinez-Quetglas I, Pinyol R, Dauch D, Torrecilla S, Tovar V, Moeini A, Alsinet C, Portela A, Rodriguez-Carunchio L, Solé M, Lujambio A, Villanueva A, Thung S, Esteller M, Zender L, Llovet JM. IGF2 Is Up-regulated by Epigenetic Mechanisms in Hepatocellular Carcinomas and Is an Actionable Oncogene Product in Experimental Models. Gastroenterology 2016; 151:1192-1205. [PMID: 27614046 DOI: 10.1053/j.gastro.2016.09.001] [Citation(s) in RCA: 228] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 08/23/2016] [Accepted: 09/01/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND & AIMS Effective treatments are urgently needed for hepatocellular carcinoma (HCC), which is usually diagnosed at advanced stages. Signaling via the insulin-like growth factor (IGF) pathway is aberrantly activated in HCC by IGF2 overexpression. We aimed to elucidate the mechanism of IGF2 overexpression and its oncogenic activities and evaluate the anti-tumor effects of reducing IGF2 signaling. METHODS We obtained 228 HCC samples from patients who underwent liver resection, 168 paired non-tumor adjacent cirrhotic liver samples, and 10 non-tumor liver tissues from patients undergoing resection for hepatic hemangioma. We analyzed gene expression, microRNA, and DNA methylation profiles for all samples, focusing on genes in the IGF signaling pathway. IGF2 was expressed in SNU449 and PLC5 HCC cells and knocked down with small hairpin RNAs in Hep3B and Huh7 cell lines. We analyzed these cells for proliferation, apoptosis, migration, and colony formation. We performed studies in mice engineered to express Myc and Akt1 in liver, which develop liver tumors, with or without hepatic expression of Igf2. Mice with xenograft tumors grown from HCC cells were given a monoclonal antibody against IGF1 and IGF2 (xentuzumab), along with sorafenib; tumor growth was measured and tissues were analyzed by immunohistochemistry and immunoblots. RESULTS Levels of IGF2 messenger RNA and protein were increased >20-fold in 15% of human HCC tissues compared with non-tumor liver tissues. Methylation at the fetal promoters of IGF2 was reduced in the HCC samples and cell lines that overexpressed IGF2, compared with those that did not overexpress this gene, and non-tumor tissues. Tumors that overexpressed IGF2 had gene expression patterns significantly associated with hepatic progenitor cell features, stellate cell activation, NOTCH signaling, and an aggressive phenotype (P < .0001). In mice engineered to express Myc and Akt1 in liver, co-expression of Igf2 accelerated formation of liver tumors, compared to mice with livers expressing only Myc and Akt1, and shortened survival times (P = .02). The antibody xentuzumab blocked phosphorylation of IGF1 receptor in HCC cell lines and reduced their proliferation and colony formation. In mice with xenograft tumors, injection of xentuzumab, with or without sorafenib, slowed tumor growth and increased survival times compared to vehicle or sorafenib alone. Xentuzumab inhibited phosphorylation of IGF1 receptor and AKT and reduced decreased tumor vascularization compared with vehicle. CONCLUSIONS A large proportion of HCC samples were found to overexpress IGF2, via demethylation of its fetal promoter. Overexpression of IGF2 accelerates formation of liver tumors in mice with hepatic expression of MYC and AKT1, via activation of IGF1 receptor signaling. An antibody against IGF1 and IGF2 slows growth of xenograft tumors and increases survival of these mice.
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Affiliation(s)
- Iris Martinez-Quetglas
- Liver Cancer Translational Research Laboratory, Barcelona Clinic Liver Cancer Group, Liver Unit, IDIBAPS-Hospital Clínic de Barcelona, CIBERehd Universitat de Barcelona, Catalonia, Spain
| | - Roser Pinyol
- Liver Cancer Translational Research Laboratory, Barcelona Clinic Liver Cancer Group, Liver Unit, IDIBAPS-Hospital Clínic de Barcelona, CIBERehd Universitat de Barcelona, Catalonia, Spain
| | - Daniel Dauch
- Division of Translational Gastrointestinal Oncology, Department of Internal Medicine I, University of Tübingen, Tübingen, Germany
| | - Sara Torrecilla
- Liver Cancer Translational Research Laboratory, Barcelona Clinic Liver Cancer Group, Liver Unit, IDIBAPS-Hospital Clínic de Barcelona, CIBERehd Universitat de Barcelona, Catalonia, Spain
| | - Victoria Tovar
- Liver Cancer Translational Research Laboratory, Barcelona Clinic Liver Cancer Group, Liver Unit, IDIBAPS-Hospital Clínic de Barcelona, CIBERehd Universitat de Barcelona, Catalonia, Spain
| | - Agrin Moeini
- Liver Cancer Translational Research Laboratory, Barcelona Clinic Liver Cancer Group, Liver Unit, IDIBAPS-Hospital Clínic de Barcelona, CIBERehd Universitat de Barcelona, Catalonia, Spain
| | - Clara Alsinet
- Liver Cancer Translational Research Laboratory, Barcelona Clinic Liver Cancer Group, Liver Unit, IDIBAPS-Hospital Clínic de Barcelona, CIBERehd Universitat de Barcelona, Catalonia, Spain
| | - Anna Portela
- Cancer Epigenetics and Biology Program, Bellvitge Biomedical Research Institute, Barcelona, Catalonia, Spain
| | - Leonardo Rodriguez-Carunchio
- Liver Cancer Translational Research Laboratory, Barcelona Clinic Liver Cancer Group, Liver Unit, IDIBAPS-Hospital Clínic de Barcelona, CIBERehd Universitat de Barcelona, Catalonia, Spain
| | - Manel Solé
- Liver Cancer Translational Research Laboratory, Barcelona Clinic Liver Cancer Group, Liver Unit, IDIBAPS-Hospital Clínic de Barcelona, CIBERehd Universitat de Barcelona, Catalonia, Spain
| | - Amaia Lujambio
- Liver Cancer Program, Division of Liver Diseases and Pathology Department, Tisch Cancer Institute, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York; Oncological Sciences Department, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Augusto Villanueva
- Liver Cancer Program, Division of Liver Diseases and Pathology Department, Tisch Cancer Institute, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York; Division of Hematology and Medical Oncology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Swan Thung
- Liver Cancer Program, Division of Liver Diseases and Pathology Department, Tisch Cancer Institute, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Manel Esteller
- Cancer Epigenetics and Biology Program, Bellvitge Biomedical Research Institute, Barcelona, Catalonia, Spain; Institució Catalana de Recerca i Estudis Avançats, Barcelona, Catalonia, Spain
| | - Lars Zender
- Division of Translational Gastrointestinal Oncology, Department of Internal Medicine I, University of Tübingen, Tübingen, Germany; Translational Gastrointestinal Oncology Group within the German Center for Translational Cancer Research, German Cancer Research Center, Heidelberg, Germany
| | - Josep M Llovet
- Liver Cancer Translational Research Laboratory, Barcelona Clinic Liver Cancer Group, Liver Unit, IDIBAPS-Hospital Clínic de Barcelona, CIBERehd Universitat de Barcelona, Catalonia, Spain; Liver Cancer Program, Division of Liver Diseases and Pathology Department, Tisch Cancer Institute, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York; Institució Catalana de Recerca i Estudis Avançats, Barcelona, Catalonia, Spain.
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Maruthanila VL, Elancheran R, Kunnumakkara AB, Kabilan S, Kotoky J. Recent development of targeted approaches for the treatment of breast cancer. Breast Cancer 2016; 24:191-219. [PMID: 27796923 DOI: 10.1007/s12282-016-0732-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 09/18/2016] [Indexed: 12/17/2022]
Abstract
Breast cancer is the most prominent cause of cancer death in women worldwide. The highlights of this review are to provide an overview of the targeted therapeutic agents, challenges with metastatic breast cancer (MBCa), mechanisms of action through Hedgehog/Gli 1 signaling pathway and future prospective. Over a decade of success, several drugs have been approved and are in the advanced stages of clinical trials that target the receptors such as estrogen receptor, growth factor receptor, receptor activator of nuclear factor kappa-B, etc. Currently, several monoclonal antibodies are also used for the treatment of breast cancer. Advances in understanding tumor biology, particularly signaling pathways such as Notch signaling pathway, Hedgehog/Gli 1 signaling pathway, and inhibitors are considered to be important for bone metastasis. These studies may provide vital information for the design and development of new strategies with respect to efficacy, reduction of the side effects, and treatment strategies.
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Affiliation(s)
- V L Maruthanila
- Life Sciences Division, Institute of Advanced Study in Science and Technology, Guwahati, Assam, 781035, India
| | - R Elancheran
- Life Sciences Division, Institute of Advanced Study in Science and Technology, Guwahati, Assam, 781035, India
| | - A B Kunnumakkara
- Department of Biotechnology, Indian Institute of Technology, Guwahati, Assam, 781035, India
| | - S Kabilan
- Department of Chemistry, Annamalai University, Annamalai Nagar, Tamilnadu, 608002, India
| | - Jibon Kotoky
- Life Sciences Division, Institute of Advanced Study in Science and Technology, Guwahati, Assam, 781035, India.
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Lamhamedi-Cherradi SE, Menegaz BA, Ramamoorthy V, Vishwamitra D, Wang Y, Maywald RL, Buford AS, Fokt I, Skora S, Wang J, Naing A, Lazar AJ, Rohren EM, Daw NC, Subbiah V, Benjamin RS, Ratan R, Priebe W, Mikos AG, Amin HM, Ludwig JA. IGF-1R and mTOR Blockade: Novel Resistance Mechanisms and Synergistic Drug Combinations for Ewing Sarcoma. J Natl Cancer Inst 2016; 108:djw182. [PMID: 27576731 DOI: 10.1093/jnci/djw182] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 06/17/2016] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Therapies cotargeting insulin-like growth factor receptor 1 (IGF-1R) and mammalian target of rapamycin (mTOR) have demonstrated remarkable, albeit short-lived, clinical responses in a subset of Ewing sarcoma (ES) patients. However, the mechanisms of resistance and applicable strategies for overcoming drug resistance to the IGF-1R/mTOR blockade are still undefined. METHODS To elucidate predominant mechanism(s) of acquired drug resistance while identifying synergistic drug combinations that improve clinical efficacy, we generated more than 18 ES cell lines resistant to IGF-1R- or mTOR-targeted therapy. Two small-molecule inhibitors of IGF-1R were chosen, NVP-ADW-742 (IGF-1R-selective) and OSI-906 (a dual IGF-1R/insulin receptor alpha [IR-α] inhibitor). Reverse-phase protein lysate arrays (RPPAs) revealed proteomic changes linked to IGF-1R/mTOR resistance, and selected proteins were validated in cell-based assays, xenografts, and within human clinical samples. All statistical tests were two-sided. RESULTS Novel mechanisms of resistance (MOR) emerged after dalotuzumab-, NVP-ADW-742-, and OSI-906-based targeting of IGF-1R. MOR to dalotuzumab included upregulation of IRS1, PI3K, and STAT3, as well as p38 MAPK, which was also induced by OSI-906. pEIF4E(Ser209), a key regulator of Cap-dependent translation, was induced in ridaforolimus-resistant ES cell lines. Unique drug combinations targeting IGF-1R and PI3K-alpha or Mnk and mTOR were synergistic in vivo and vitro (P < .001) as assessed respectively by Mantel-Cox and isobologram testing. CONCLUSIONS We discovered new druggable targets expressed by chemoresistant ES cells, xenografts, and relapsed human tumors. Joint suppression of these newfound targets, in concert with IGF-1R or mTOR blockade, should improve clinical outcomes.
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Affiliation(s)
- Salah-Eddine Lamhamedi-Cherradi
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Brian A Menegaz
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Vandhana Ramamoorthy
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Deeksha Vishwamitra
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Ying Wang
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Rebecca L Maywald
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Adriana S Buford
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Izabela Fokt
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Stanislaw Skora
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Jing Wang
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Aung Naing
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Alexander J Lazar
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Eric M Rohren
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Najat C Daw
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Vivek Subbiah
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Robert S Benjamin
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Ravin Ratan
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Waldemar Priebe
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Antonios G Mikos
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Hesham M Amin
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
| | - Joseph A Ludwig
- Departments of Sarcoma Medical Oncology (SELC, BAM, VR, RSB, RR, JAL), Hematopathology (DV, HMA), Bioinformatics and Computational Biology (YW, JW), Investigational Cancer Therapeutics (AN, VS), Pediatrics-Patient Care (NCD), Experimental Therapeutics (IF, SS, WP), and Pathology (AJL), The University of Texas MD Anderson Cancer Center, Houston, TX; Departments of Radiology (EMR) and Molecular & Human Genetics (RLM), Baylor College of Medicine, Houston, TX; Department of Pediatric-Oncology, Texas Children's Hospital. Houston, TX (ASB); Departments of Chemical and Biomolecular Engineering and Bioengineering, Rice University, Houston, TX (AGM)
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The insulin-like growth factor-I receptor (IGF-IR) in breast cancer: biology and treatment strategies. Tumour Biol 2016; 37:11711-11721. [PMID: 27444280 DOI: 10.1007/s13277-016-5176-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 07/12/2016] [Indexed: 12/15/2022] Open
Abstract
Breast cancer is the most common cancer and the second leading cause of cancer-related deaths among women worldwide. Although patients are often diagnosed in the early and curable stages, the treatment of metastatic breast cancer remains a major clinical challenge. The combination of chemotherapy with new targeting agents, such as bevacizumab, is helpful in improving patient survival; however, novel treatment strategies are required to improve clinical outcomes. The insulin-like growth factor-I receptor (IGF-IR) is a tyrosine kinase cell surface receptor which is involved in the regulation of cell growth and metabolism. Previous studies have shown that activation of the IGF-IR signaling pathway promotes proliferation, survival, and metastasis of breast cancer cells. Additionally, overexpression of IGF-IR is associated with breast cancer cell resistance to anticancer therapies. Recently, IGF-IR has been introduced as a marker of stemness in breast cancer cells and there is also accumulating evidence that IGF-IR contributes to the establishment and maintenance of breast cancer epithelial-mesenchymal transition (EMT). Therefore, pharmacological or molecular targeting of IGF-IR could be a promising strategy, in the treatment of patients with breast cancer, particularly in order to circumvent the therapeutic resistance and targeting breast cancer stem/progenitors. Currently, many strategies have been developed for targeting IGF-IR, some have entered clinical trials and some are in preclinical stages for breast cancer therapy. In this review, we will first discuss on the biology of IGF-IR in an attempt to find the role of this receptor in breast cancer and then discuss about therapeutic strategies to target this receptor.
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Overproduction of IGF-2 drives a subset of colorectal cancer cells, which specifically respond to an anti-IGF therapeutic antibody and combination therapies. Oncogene 2016; 36:797-806. [PMID: 27399333 DOI: 10.1038/onc.2016.248] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 04/15/2016] [Accepted: 05/24/2016] [Indexed: 12/28/2022]
Abstract
Colorectal cancer (CRC) is a heterogeneous disease with a broad spectrum of genetic and epigenetic changes. A comprehensive molecular characterization of CRC by The Cancer Genome Atlas Network detected the overexpression of the insulin-like growth factor 2 (IGF2) gene, encoding a ligand for the insulin-like growth factor 1 receptor (IGF-1R), in a subset of CRC tumors. In this study, we investigated the oncogenic potential of IGF-2 in IGF2-overexpressing CRC models and the efficacy of MEDI-573, an IGF-1/2-neutralizing antibody. We found that a subset of CRC cell lines express high IGF-2 levels owing to an increased DNA copy number and hypermethylation in the H19 promoter of the IGF2 gene. MEDI-573 efficiently neutralized IGF-2 and induced apoptosis, which resulted in significant tumor growth inhibition in CRC mouse models that express high levels of IGF-2. These effects were specific to CRCs overexpressing IGF-2, as MEDI-573 did not affect the growth CRC cell lines with normal levels. Moreover, blockade of IGF-2 by MEDI-573 modulated other signaling pathways, suggesting combination therapies with inhibitors of these pathways. Indeed, in vivo efficacy was significantly enhanced when MEDI-573 was used in combination with trastuzumab, AZD2014 (dual mTORC1/2i), AZD5363 (AKTi) and selumetinib (AZD6244/ARRY-142886, MEK1/2i) or cetuximab. These results demonstrate that overexpressed IGF-2 is the major tumorigenic driver in a subset of CRCs and encourage testing of MEDI-573, alone and in combinations, in IGF2-overexpressing CRC patients.
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46
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Frago S, Nicholls RD, Strickland M, Hughes J, Williams C, Garner L, Surakhy M, Maclean R, Rezgui D, Prince SN, Zaccheo OJ, Ebner D, Sanegre S, Yu S, Buffa FM, Crump MP, Hassan AB. Functional evolution of IGF2:IGF2R domain 11 binding generates novel structural interactions and a specific IGF2 antagonist. Proc Natl Acad Sci U S A 2016; 113:E2766-75. [PMID: 27140600 PMCID: PMC4878476 DOI: 10.1073/pnas.1513023113] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Among the 15 extracellular domains of the mannose 6-phosphate/insulin-like growth factor-2 receptor (M6P/IGF2R), domain 11 has evolved a binding site for IGF2 to negatively regulate ligand bioavailability and mammalian growth. Despite the highly evolved structural loops of the IGF2:domain 11 binding site, affinity-enhancing AB loop mutations suggest that binding is modifiable. Here we examine the extent to which IGF2:domain 11 affinity, and its specificity over IGF1, can be enhanced, and we examine the structural basis of the mechanistic and functional consequences. Domain 11 binding loop mutants were selected by yeast surface display combined with high-resolution structure-based predictions, and validated by surface plasmon resonance. We discovered previously unidentified mutations in the ligand-interacting surface binding loops (AB, CD, FG, and HI). Five combined mutations increased rigidity of the AB loop, as confirmed by NMR. When added to three independently identified CD and FG loop mutations that reduced the koff value by twofold, these mutations resulted in an overall selective 100-fold improvement in affinity. The structural basis of the evolved affinity was improved shape complementarity established by interloop (AB-CD) and intraloop (FG-FG) side chain interactions. The high affinity of the combinatorial domain 11 Fc fusion proteins functioned as ligand-soluble antagonists or traps that depleted pathological IGF2 isoforms from serum and abrogated IGF2-dependent signaling in vivo. An evolved and reengineered high-specificity M6P/IGF2R domain 11 binding site for IGF2 may improve therapeutic targeting of the frequent IGF2 gain of function observed in human cancer.
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Affiliation(s)
- Susana Frago
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Ryan D Nicholls
- Department of Organic and Biological Chemistry, School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Madeleine Strickland
- Department of Organic and Biological Chemistry, School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Jennifer Hughes
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Christopher Williams
- Department of Organic and Biological Chemistry, School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Lee Garner
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Mirvat Surakhy
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Rory Maclean
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Dellel Rezgui
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Stuart N Prince
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Oliver J Zaccheo
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Daniel Ebner
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, United Kingdom
| | - Sabina Sanegre
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Sheng Yu
- Department of Oncology, University of Oxford, Oxford OX3 7DQ, United Kingdom
| | - Francesca M Buffa
- Department of Oncology, University of Oxford, Oxford OX3 7DQ, United Kingdom
| | - Matthew P Crump
- Department of Organic and Biological Chemistry, School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom;
| | - Andrew Bassim Hassan
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom;
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Shaikh AB, Li F, Li M, He B, He X, Chen G, Guo B, Li D, Jiang F, Dang L, Zheng S, Liang C, Liu J, Lu C, Liu B, Lu J, Wang L, Lu A, Zhang G. Present Advances and Future Perspectives of Molecular Targeted Therapy for Osteosarcoma. Int J Mol Sci 2016; 17:506. [PMID: 27058531 PMCID: PMC4848962 DOI: 10.3390/ijms17040506] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Accepted: 03/30/2016] [Indexed: 12/20/2022] Open
Abstract
Osteosarcoma (OS) is a bone cancer mostly occurring in pediatric population. Current treatment regime of surgery and intensive chemotherapy could cure about 60%-75% patients with primary osteosarcoma, however only 15% to 30% can be cured when pulmonary metastasis or relapse has taken place. Hence, novel precise OS-targeting therapies are being developed with the hope of addressing this issue. This review summarizes the current development of molecular mechanisms and targets for osteosarcoma. Therapies that target these mechanisms with updated information on clinical trials are also reviewed. Meanwhile, we further discuss novel therapeutic targets and OS-targeting drug delivery systems. In conclusion, a full insight in OS pathogenesis and OS-targeting strategies would help us explore novel targeted therapies for metastatic osteosarcoma.
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Affiliation(s)
- Atik Badshah Shaikh
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Fangfei Li
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Min Li
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
- Department of Orthopaedic Surgery, Shenzhen Hospital, Southern Medical University, Shenzhen 518100, China.
| | - Bing He
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Xiaojuan He
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Guofen Chen
- Orthopaedic Surgery Department, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Baosheng Guo
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Defang Li
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Feng Jiang
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Lei Dang
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Shaowei Zheng
- Department of Orthopaedic Surgery, the First Hospital of Huizhou, Huizhou 516000, China.
| | - Chao Liang
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Jin Liu
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Cheng Lu
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Biao Liu
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Jun Lu
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Luyao Wang
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Aiping Lu
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
| | - Ge Zhang
- Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China.
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48
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Redman JM, Hill EM, AlDeghaither D, Weiner LM. Mechanisms of action of therapeutic antibodies for cancer. Mol Immunol 2015; 67:28-45. [PMID: 25911943 PMCID: PMC4529810 DOI: 10.1016/j.molimm.2015.04.002] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Revised: 03/29/2015] [Accepted: 04/03/2015] [Indexed: 02/06/2023]
Abstract
The therapeutic utility of antibodies and their derivatives is achieved by various means. The FDA has approved several targeted antibodies that disrupt signaling of various growth factor receptors for the treatment of a number of cancers. Rituximab, and other anti-CD20 monoclonal antibodies are active in B cell malignancies. As more experience has been gained with anti-CD20 monoclonal antibodies, the multifactorial nature of their anti-tumor mechanisms has emerged. Other targeted antibodies function to dampen inhibitory checkpoints. These checkpoint inhibitors have recently achieved dramatic results in several cancers, including melanoma. These and related antibodies continue to be investigated in the clinical and pre-clinical settings. Novel antibody structures that target two or more antigens have also made their way into clinical use. Tumor targeted antibodies can also be conjugated to chemo- or radiotherapeutic agents, or catalytic toxins, as a means to deliver toxic payloads to cancer cells. Here we provide a review of these mechanisms and a discussion of their relevance to current and future clinical applications.
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Affiliation(s)
- J M Redman
- Departments of Oncology and Internal Medicine, Georgetown University Medical Center and Lombardi Comprehensive Cancer Center, Washington, DC, United States
| | - E M Hill
- Departments of Oncology and Internal Medicine, Georgetown University Medical Center and Lombardi Comprehensive Cancer Center, Washington, DC, United States
| | - D AlDeghaither
- Departments of Oncology and Internal Medicine, Georgetown University Medical Center and Lombardi Comprehensive Cancer Center, Washington, DC, United States
| | - L M Weiner
- Departments of Oncology and Internal Medicine, Georgetown University Medical Center and Lombardi Comprehensive Cancer Center, Washington, DC, United States.
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49
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Forest A, Amatulli M, Ludwig DL, Damoci CB, Wang Y, Burns CA, Donoho GP, Zanella N, Fiebig HH, Prewett MC, Surguladze D, DeLigio JT, Houghton PJ, Smith MA, Novosiadly R. Intrinsic Resistance to Cixutumumab Is Conferred by Distinct Isoforms of the Insulin Receptor. Mol Cancer Res 2015; 13:1615-26. [PMID: 26263910 DOI: 10.1158/1541-7786.mcr-15-0279] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 08/05/2015] [Indexed: 12/26/2022]
Abstract
UNLABELLED Despite a recent shift away from anti-insulin-like growth factor I receptor (IGF-IR) therapy, this target has been identified as a key player in the resistance mechanisms to various conventional and targeted agents, emphasizing its value as a therapy, provided that it is used in the right patient population. Molecular markers predictive of antitumor activity of IGF-IR inhibitors remain largely unidentified. The aim of this study is to evaluate the impact of insulin receptor (IR) isoforms on the antitumor efficacy of cixutumumab, a humanized mAb against IGF-IR, and to correlate their expression with therapeutic outcome. The data demonstrate that expression of total IR rather than individual IR isoforms inversely correlates with single-agent cixutumumab efficacy in pediatric solid tumor models in vivo. Total IR, IR-A, and IR-B expression adversely affects the outcome of cixutumumab in combination with chemotherapy in patient-derived xenograft models of lung adenocarcinoma. IR-A overexpression in tumor cells confers complete resistance to cixutumumab in vitro and in vivo, whereas IR-B results in a partial resistance. Resistance in IR-B-overexpressing cells is fully reversed by anti-IGF-II antibodies, suggesting that IGF-II is a driver of cixutumumab resistance in this setting. The present study links IR isoforms, IGF-II, and cixutumumab efficacy mechanistically and identifies total IR as a biomarker predictive of intrinsic resistance to anti-IGF-IR antibody. IMPLICATIONS This study identifies total IR as a biomarker predictive of primary resistance to IGF-IR antibodies and provides a rationale for new clinical trials enriched for patients whose tumors display low IR expression.
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MESH Headings
- Antibodies, Monoclonal/administration & dosage
- Antibodies, Monoclonal, Humanized
- Antigens, CD/genetics
- Antigens, CD/metabolism
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Cell Line, Tumor
- Drug Resistance, Neoplasm
- Humans
- Lung Neoplasms/drug therapy
- Lung Neoplasms/genetics
- Lung Neoplasms/metabolism
- MCF-7 Cells
- Protein Isoforms/genetics
- Protein Isoforms/metabolism
- Receptor, IGF Type 1/antagonists & inhibitors
- Receptor, Insulin/genetics
- Receptor, Insulin/metabolism
- Up-Regulation
- Xenograft Model Antitumor Assays
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Affiliation(s)
| | | | | | | | - Ying Wang
- Eli Lilly and Company, New York, New York
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50
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Roberts SS, Chou AJ, Cheung NKV. Immunotherapy of Childhood Sarcomas. Front Oncol 2015; 5:181. [PMID: 26301204 PMCID: PMC4528283 DOI: 10.3389/fonc.2015.00181] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 07/23/2015] [Indexed: 12/29/2022] Open
Abstract
Pediatric sarcomas are a heterogeneous group of malignant tumors of bone and soft tissue origin. Although more than 100 different histologic subtypes have been described, the majority of pediatric cases belong to the Ewing’s family of tumors, rhabdomyosarcoma and osteosarcoma. Most patients that present with localized stage are curable with surgery and/or chemotherapy; however, those with metastatic disease at diagnosis or those who experience a relapse continue to have a very poor prognosis. New therapies for these patients are urgently needed. Immunotherapy is an established treatment modality for both liquid and solid tumors, and in pediatrics, most notably for neuroblastoma and osteosarcoma. In the past, immunomodulatory agents such as interferon, interleukin-2, and liposomal-muramyl tripeptide phosphatidyl-ethanolamine have been tried, with some activity seen in subsets of patients; additionally, various cancer vaccines have been studied with possible benefit. Monoclonal antibody therapies against tumor antigens such as disialoganglioside GD2 or immune checkpoint targets such as CTLA-4 and PD-1 are being actively explored in pediatric sarcomas. Building on the success of adoptive T cell therapy for EBV-related lymphoma, strategies to redirect T cells using chimeric antigen receptors and bispecific antibodies are rapidly evolving with potential for the treatment of sarcomas. This review will focus on recent preclinical and clinical developments in targeted agents for pediatric sarcomas with emphasis on the immunobiology of immune checkpoints, immunoediting, tumor microenvironment, antibody engineering, cell engineering, and tumor vaccines. The future integration of antibody-based and cell-based therapies into an overall treatment strategy of sarcoma will be discussed.
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Affiliation(s)
- Stephen S Roberts
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center , New York, NY , USA
| | - Alexander J Chou
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center , New York, NY , USA
| | - Nai-Kong V Cheung
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center , New York, NY , USA
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