1
|
Heublein S, Pfisterer J, du Bois A, Anglesio M, Aminossadati B, Bhatti I, Sehouli J, Wimberger P, Schochter F, Hilpert F, Hillemanns P, Kalder M, Schroeder W, Mahner S, Burges A, Canzler U, Gropp-Meier M, Jackisch C, Harter P, Kommoss S, Marmé F. Fibroblast Growth Factor Receptors and Ligands in Context of Bevacizumab Response in Ovarian Carcinoma: An Exploratory Analysis of AGO-OVAR11/ICON-7. J Transl Med 2024; 104:100321. [PMID: 38154497 DOI: 10.1016/j.labinv.2023.100321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 12/30/2023] Open
Abstract
With more novel drugs being approved for the treatment of ovarian carcinoma, the question remains to what extent patients benefit from antiangiogenic treatment with bevacizumab, either in combination with poly-(ADP-ribose) polymerase inhibitors or as single-agent maintenance. As fibroblast growth factor receptors and their ligands (FGFRs/FGFs) are key players in angiogenic signaling and have been linked to resistance to several drugs, we investigated the prognostic or predictive potential of FGFs/FGFRs signaling in the context of bevacizumab treatment within the prospective phase III AGO-OVAR11/ICON-7 study. FGFR1, FGFR2, FGFR3, FGFR4, FGF1, and FGF19 gene expressions were determined in 380 ovarian carcinoma tumor samples collected from German centers in the multicenter phase III AGO-OVAR11 trial/ICON-7 trial. All patients received carboplatin and paclitaxel, administered every 3 weeks for 6 cycles, and were randomized to bevacizumab. Expressions of FGFR1, FGFR2, FGF1, and FGF19 were associated with progression-free survival in both uni- and multivariate (FGFR1: HR, 1.6, P < .001; FGFR2: HR, 1.6, P = .002; FGF1: HR, 2.3, P < .001; and FGF19: HR, 0.7; P = .007) analysis. A signature built by FGFR1, FGFR4, and FGF19 defined a subgroup (n = 62) of patients that derived the greatest bevacizumab-associated improvement of progression-free survival (HR, 0.3; P = .004). In this exploratory analysis of a prospective randomized phase III trial, we provide evidence that the expression of FGFRs/FGFs might have independent prognostic values. An FGFR/FGF-based gene signature identified in our study appears to predict long-term benefit from bevacizumab. This observation is hypothesis-generating and requires validation on independent cohorts.
Collapse
Affiliation(s)
- Sabine Heublein
- Department of Gynecology and Obstetrics, University Hospital Heidelberg, Heidelberg, Germany; National Center for Tumor Diseases Heidelberg, Heidelberg, Germany.
| | | | - Andreas du Bois
- Department of Gynecology and Gynecologic Oncology, Kliniken Essen-Mitte, Essen, Germany
| | - Michael Anglesio
- University of British Columbia, Vancouver, British Columbia, Canada
| | - Behnaz Aminossadati
- Coordinating Center for Clinical Trials of the Philipps-University of Marburg, Marburg, Germany
| | - Irfan Bhatti
- National Center for Tumor Diseases Heidelberg, Heidelberg, Germany
| | - Jalid Sehouli
- Department of Gynecology and Gynecologic Oncology, University Berlin, Charité, Berlin, Germany
| | - Pauline Wimberger
- Department of Gynecology and Obstetrics, Carl-Gustav-Carus University, TU Dresden and National Cancer Center (NCT Dresden), Dresden, Germany; Department of Gynecology and Obstetrics, University Duisburg-Essen, Essen, Germany
| | - Fabienne Schochter
- Department of Gynecology and Obstetrics, University Hospital Ulm, Ulm, Germany
| | - Felix Hilpert
- Oncologic Therapy Center Hospital Jerusalem, UKHS Kiel, Hamburg, Germany
| | - Peter Hillemanns
- Department of Gynecology and Obstetrics, Medical School Hannover, Hannover, Germany
| | - Matthias Kalder
- Department of Gynecology and Obstetrics, Philips-University Marburg, Marburg, Germany
| | | | - Sven Mahner
- Department of Gynecology, University Hamburg Eppendorf, Hamburg, Germany; Department of Obstetrics and Gynecology, University Hospital, Ludwig-Maximillians-University Munich, Munich, Germany
| | - Alexander Burges
- Department of Obstetrics and Gynecology, University Hospital, Ludwig-Maximillians-University Munich, Munich, Germany
| | - Ulrich Canzler
- Department of Gynecology and Obstetrics, Carl-Gustav-Carus University, TU Dresden and National Cancer Center (NCT Dresden), Dresden, Germany
| | - Martina Gropp-Meier
- Oberschwabenklinik, Department of Gynecology, Krankenhaus St. Elisabeth, Ravensburg, Germany
| | - Christian Jackisch
- Department of Gynecology and Obstetrics, SANA-Klinikum Offenbach, Offenbach, Germany
| | - Philipp Harter
- Department of Gynecology and Gynecologic Oncology, Kliniken Essen-Mitte, Essen, Germany
| | - Stefan Kommoss
- Department of Gynecology and Obstetrics, University Hospital Tuebingen, Tübingen, Germany; Department of Gynecology and Obstetrics, Klinikum Schwäbisch-Hall, Schwäbisch-Hall, Germany
| | - Frederik Marmé
- Department of Gynecology and Obstetrics, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| |
Collapse
|
2
|
Thakur M, Rho O, Khandelwal A, Nathan CAO, DiGiovanni J. Inducible Keratinocyte Specific FGFR2 Deficiency Inhibits UVB-Induced Signaling, Proliferation, Inflammation, and Skin Carcinogenesis. J Invest Dermatol 2024; 144:341-350.e7. [PMID: 37660781 DOI: 10.1016/j.jid.2023.08.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/16/2023] [Accepted: 08/18/2023] [Indexed: 09/05/2023]
Abstract
A potential role for fibroblast growth factor receptor 2 (FGFR2) in cutaneous squamous cell carcinoma (cSCC) has been reported. To demonstrate the specific role of FGFR2 in UVB-induced skin carcinogenesis and development of cSCC, we generated a keratinocyte specific, tamoxifen inducible mouse model of FGFR2 deficiency. In this mouse model, topical application of 4-hydroxy tamoxifen led to the induction of Cre recombinase to delete FGFR2 in epidermal keratinocytes of both male and female transgenic mice. Analysis of epidermal protein lysates isolated from FGFR2 deficient mice exposed to UVB showed significant reductions of phospho-FGFR (pFGFR; Y653/654) and phospho-fibroblast growth factor receptor substrate 2α as well as downstream effectors of mTORC1 signaling. Phosphorylation of signal transducer and activators of transcription 1/3 was significantly reduced as well as levels of IRF-1, DUSP6, early growth response 1, and PD-L1 compared to the control groups. Keratinocyte-specific ablation of FGFR2 also significantly inhibited epidermal hyperproliferation, hyperplasia, and inflammation after exposure to UVB. Finally, keratinocyte-specific deletion of FGFR2 significantly inhibited UVB-induced cSCC formation. Collectively, the current data demonstrate an important role of FGFR2 in UVB-induced oncogenic signaling as well as development of cSCC. In addition, the current preclinical findings suggest that inhibition of FGFR2 signaling may provide a previously unreported strategy to prevent and/or treat UVB-induced cSCC.
Collapse
Affiliation(s)
- Megha Thakur
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, Texas, USA
| | - Okkyung Rho
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, Texas, USA
| | - Alok Khandelwal
- Department of Otolaryngology, Head and Neck Surgery, Louisiana State University Health Sciences Center, Shreveport, Los Angeles, USA; Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center, Shreveport, Los Angeles, USA
| | - Cherie-Ann O Nathan
- Department of Otolaryngology, Head and Neck Surgery, Louisiana State University Health Sciences Center, Shreveport, Los Angeles, USA; Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center, Shreveport, Los Angeles, USA; Department of Surgery, Overton Brooks Veterans Affairs Hospital, Shreveport, Los Angeles, USA
| | - John DiGiovanni
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, Texas, USA; LiveStrong Cancer Institutes, Dell Medical School, The University of Texas at Austin, Austin, Texas, USA; Center for Molecular Carcinogenesis and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, Texas, USA.
| |
Collapse
|
3
|
Liu Q, Huang J, Yan W, Liu Z, Liu S, Fang W. FGFR families: biological functions and therapeutic interventions in tumors. MedComm (Beijing) 2023; 4:e367. [PMID: 37750089 PMCID: PMC10518040 DOI: 10.1002/mco2.367] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 07/28/2023] [Accepted: 08/11/2023] [Indexed: 09/27/2023] Open
Abstract
There are five fibroblast growth factor receptors (FGFRs), namely, FGFR1-FGFR5. When FGFR binds to its ligand, namely, fibroblast growth factor (FGF), it dimerizes and autophosphorylates, thereby activating several key downstream pathways that play an important role in normal physiology, such as the Ras/Raf/mitogen-activated protein kinase kinase/extracellular signal-regulated kinase, phosphoinositide 3-kinase (PI3K)/AKT, phospholipase C gamma/diacylglycerol/protein kinase c, and signal transducer and activator of transcription pathways. Furthermore, as an oncogene, FGFR genetic alterations were found in 7.1% of tumors, and these alterations include gene amplification, gene mutations, gene fusions or rearrangements. Therefore, FGFR amplification, mutations, rearrangements, or fusions are considered as potential biomarkers of FGFR therapeutic response for tyrosine kinase inhibitors (TKIs). However, it is worth noting that with increased use, resistance to TKIs inevitably develops, such as the well-known gatekeeper mutations. Thus, overcoming the development of drug resistance becomes a serious problem. This review mainly outlines the FGFR family functions, related pathways, and therapeutic agents in tumors with the aim of obtaining better outcomes for cancer patients with FGFR changes. The information provided in this review may provide additional therapeutic ideas for tumor patients with FGFR abnormalities.
Collapse
Affiliation(s)
- Qing Liu
- Cancer CenterIntegrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhouGuangdongChina
| | - Jiyu Huang
- Cancer CenterIntegrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhouGuangdongChina
| | - Weiwei Yan
- Cancer CenterIntegrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhouGuangdongChina
| | - Zhen Liu
- Cancer CenterIntegrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhouGuangdongChina
- Key Laboratory of Protein Modification and DegradationBasic School of Guangzhou Medical UniversityGuangzhouGuangdongChina
| | - Shu Liu
- Department of Breast SurgeryThe Affiliated Hospital of Guizhou Medical UniversityGuiyangGuizhouChina
| | - Weiyi Fang
- Cancer CenterIntegrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhouGuangdongChina
| |
Collapse
|
4
|
Wojtyś W, Oroń M. How Driver Oncogenes Shape and Are Shaped by Alternative Splicing Mechanisms in Tumors. Cancers (Basel) 2023; 15:cancers15112918. [PMID: 37296881 DOI: 10.3390/cancers15112918] [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: 04/28/2023] [Revised: 05/20/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
The development of RNA sequencing methods has allowed us to study and better understand the landscape of aberrant pre-mRNA splicing in tumors. Altered splicing patterns are observed in many different tumors and affect all hallmarks of cancer: growth signal independence, avoidance of apoptosis, unlimited proliferation, invasiveness, angiogenesis, and metabolism. In this review, we focus on the interplay between driver oncogenes and alternative splicing in cancer. On one hand, oncogenic proteins-mutant p53, CMYC, KRAS, or PI3K-modify the alternative splicing landscape by regulating expression, phosphorylation, and interaction of splicing factors with spliceosome components. Some splicing factors-SRSF1 and hnRNPA1-are also driver oncogenes. At the same time, aberrant splicing activates key oncogenes and oncogenic pathways: p53 oncogenic isoforms, the RAS-RAF-MAPK pathway, the PI3K-mTOR pathway, the EGF and FGF receptor families, and SRSF1 splicing factor. The ultimate goal of cancer research is a better diagnosis and treatment of cancer patients. In the final part of this review, we discuss present therapeutic opportunities and possible directions of further studies aiming to design therapies targeting alternative splicing mechanisms in the context of driver oncogenes.
Collapse
Affiliation(s)
- Weronika Wojtyś
- Laboratory of Human Disease Multiomics, Mossakowski Medical Research Institute, Polish Academy of Sciences, Pawinskiego 5, 02-106 Warsaw, Poland
| | - Magdalena Oroń
- Laboratory of Human Disease Multiomics, Mossakowski Medical Research Institute, Polish Academy of Sciences, Pawinskiego 5, 02-106 Warsaw, Poland
| |
Collapse
|
5
|
Montero-Hidalgo AJ, Pérez-Gómez JM, Martínez-Fuentes AJ, Gómez-Gómez E, Gahete MD, Jiménez-Vacas JM, Luque RM. Alternative splicing in bladder cancer: potential strategies for cancer diagnosis, prognosis, and treatment. WILEY INTERDISCIPLINARY REVIEWS. RNA 2023; 14:e1760. [PMID: 36063028 DOI: 10.1002/wrna.1760] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/25/2022] [Accepted: 08/05/2022] [Indexed: 05/13/2023]
Abstract
Bladder cancer is the most common malignancy of the urinary tract worldwide. The therapeutic options to tackle this disease comprise surgery, intravesical or systemic chemotherapy, and immunotherapy. Unfortunately, a wide number of patients ultimately become resistant to these treatments and develop aggressive metastatic disease, presenting a poor prognosis. Therefore, the identification of novel therapeutic approaches to tackle this devastating pathology is urgently needed. However, a significant limitation is that the progression and drug response of bladder cancer is strongly associated with its intrinsic molecular heterogeneity. In this sense, RNA splicing is recently gaining importance as a critical hallmark of cancer since can have a significant clinical value. In fact, a profound dysregulation of the splicing process has been reported in bladder cancer, especially in the expression of certain key splicing variants and circular RNAs with a potential clinical value as diagnostic/prognostic biomarkers or therapeutic targets in this pathology. Indeed, some authors have already evidenced a profound antitumor effect by targeting some splicing factors (e.g., PTBP1), mRNA splicing variants (e.g., PKM2, HYAL4-v1), and circular RNAs (e.g., circITCH, circMYLK), which illustrates new possibilities to significantly improve the management of this pathology. This review represents the first detailed overview of the splicing process and its alterations in bladder cancer, and highlights opportunities for the development of novel diagnostic/prognostic biomarkers and their clinical potential for the treatment of this devastating cancer type. This article is categorized under: RNA Processing > Splicing Regulation/Alternative Splicing RNA in Disease and Development > RNA in Disease.
Collapse
Affiliation(s)
- Antonio J Montero-Hidalgo
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Cordoba, 14004, Spain
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Cordoba, 14004, Spain
- Reina Sofia University Hospital (HURS), Cordoba, 14004, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Cordoba, 14004, Spain
| | - Jesús M Pérez-Gómez
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Cordoba, 14004, Spain
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Cordoba, 14004, Spain
- Reina Sofia University Hospital (HURS), Cordoba, 14004, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Cordoba, 14004, Spain
| | - Antonio J Martínez-Fuentes
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Cordoba, 14004, Spain
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Cordoba, 14004, Spain
- Reina Sofia University Hospital (HURS), Cordoba, 14004, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Cordoba, 14004, Spain
| | - Enrique Gómez-Gómez
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Cordoba, 14004, Spain
- Reina Sofia University Hospital (HURS), Cordoba, 14004, Spain
- Urology Service, HURS/IMIBIC, Cordoba, 14004, Spain
| | - Manuel D Gahete
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Cordoba, 14004, Spain
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Cordoba, 14004, Spain
- Reina Sofia University Hospital (HURS), Cordoba, 14004, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Cordoba, 14004, Spain
| | - Juan M Jiménez-Vacas
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Cordoba, 14004, Spain
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Cordoba, 14004, Spain
- Reina Sofia University Hospital (HURS), Cordoba, 14004, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Cordoba, 14004, Spain
| | - Raúl M Luque
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Cordoba, 14004, Spain
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Cordoba, 14004, Spain
- Reina Sofia University Hospital (HURS), Cordoba, 14004, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Cordoba, 14004, Spain
| |
Collapse
|
6
|
Sengal AT, Smith D, Snell CE, Leung S, Talhouk A, Williams ED, McAlpine JN, Pollock PM. Spatial expression of the FGFR2b splice isoform and its prognostic significance in endometrioid endometrial carcinoma. J Pathol Clin Res 2022; 8:521-537. [PMID: 35866380 PMCID: PMC9535101 DOI: 10.1002/cjp2.286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 05/19/2022] [Accepted: 06/07/2022] [Indexed: 12/29/2022]
Abstract
Endometrial carcinoma (EC) is the most common gynecological malignancy and fibroblast growth factor receptor 2 (FGFR2) is a frequently dysregulated receptor tyrosine kinase. FGFR2b and FGFR2c are the two main splice isoforms of FGFR2 and are normally localized in epithelial and mesenchymal cells, respectively. Previously, we demonstrated that FGFR2c mRNA expression was associated with aggressive tumor characteristics, shorter progression-free survival (PFS), and disease-specific survival (DSS) in endometrioid ECs (EECs). The objectives of this study were to investigate the spatial expression of FGFR2b in normal and hyperplasia with and without atypia of human endometrium and to assess the prognostic significance of FGFR2b expression in EC. FGFR2b and FGFR2c mRNA expression was evaluated in normal (proliferative [n = 10], secretory [n = 15], and atrophic [n = 10] endometrium), hyperplasia with and without atypia (n = 19) as well as two patient cohorts of EC samples (discovery [n = 78] and Vancouver [n = 460]) using isoform-specific BaseScope RNA in situ hybridization assays. Tumors were categorized based on FGFR2 isoform expression (one, both, or neither) and categories were correlated with clinicopathologic markers, molecular subtypes, and clinical outcomes. The FGFR2b splice isoform was exclusively expressed in the epithelial compartment of normal endometrium and hyperplasia without atypia. We observed FGFR2c expression at the basalis layer of glands in 33% (3/9) of hyperplasia with atypia. In patients with EEC, FGFR2b+/FGFR2c- expression was found in 48% of the discovery cohort and 35% of the validation Vancouver cohort. In univariate analyses, tumors with FGFR2b+/FGFR2c- expression had longer PFS (hazard ratio [HR] 0.265; 95% CI 0.145-0.423; log-rank p < 0.019) and DSS (HR 0.31; 95% CI 0.149-0.622; log-rank p < 0.001) compared to tumors with FGFR2b-/FGFR2c+ expression in the large EEC Vancouver cohort. In multivariable Cox regression analyses, tumors with FGFR2b+/FGFR2c- expression were significantly associated with longer DSS (HR 0.37; 95% CI 0.153-0.872; log-rank p < 0.023) compared to FGFR2b-/FGFR2c+ tumors. In conclusion, FGFR2b+/FGFR2c- expression is associated with favorable clinicopathologic markers and clinical outcomes suggesting that FGFR2b could play a role in tailoring the management of EEC patients in the clinic if these findings are confirmed in an independent cohort.
Collapse
Affiliation(s)
- Asmerom T Sengal
- School of Biomedical Sciences, Faculty of HealthQueensland University of Technology (QUT) located at the Translational Research Institute (TRI)BrisbaneAustralia
| | - Deborah Smith
- Mater PathologyMater Research and University of QueenslandBrisbaneAustralia
| | - Cameron E Snell
- Mater PathologyMater Research and University of QueenslandBrisbaneAustralia
| | - Samuel Leung
- Department of Pathology and Laboratory Medicine, Genetic Pathology Evaluation CentreUniversity of British ColumbiaVancouverBCCanada
| | - Aline Talhouk
- Department of Gynaecology and Obstetrics, Division of Gynaecologic OncologyUniversity of British ColumbiaVancouverBCCanada
| | - Elizabeth D Williams
- School of Biomedical Sciences, Faculty of HealthQueensland University of Technology (QUT) located at the Translational Research Institute (TRI)BrisbaneAustralia
| | - Jessica N McAlpine
- Department of Gynaecology and Obstetrics, Division of Gynaecologic OncologyUniversity of British ColumbiaVancouverBCCanada
| | - Pamela M Pollock
- School of Biomedical Sciences, Faculty of HealthQueensland University of Technology (QUT) located at the Translational Research Institute (TRI)BrisbaneAustralia
| |
Collapse
|
7
|
Shilo A, Pegoraro G, Misteli T. HiFENS: high-throughput FISH detection of endogenous pre-mRNA splicing isoforms. Nucleic Acids Res 2022; 50:e130. [PMID: 36243969 PMCID: PMC9825148 DOI: 10.1093/nar/gkac869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 09/01/2022] [Accepted: 09/27/2022] [Indexed: 01/29/2023] Open
Abstract
Splicing factors play an essential role in regulation of alternative pre-mRNA splicing. While much progress has been made in delineating the mechanisms of the splicing machinery, the identity of signal transduction pathways and upstream factors that regulate splicing factor activity is largely unknown. A major challenge in the discovery of upstream regulatory factors of pre-mRNA splicing is the scarcity of functional genomics screening methods to monitor splicing outcomes of endogenous genes. Here, we have developed HiFENS (high throughput FISH detection of endogenous splicing isoforms), a high-throughput imaging assay based on hybridization chain reaction (HCR) and used HiFENS to screen for cellular factors that regulate alternative splicing of endogenous genes. We demonstrate optimized detection with high specificity of endogenous splicing isoforms and multiplexing of probes for accurate detection of splicing outcomes with single cell resolution. As proof-of-principle, we perform an RNAi screen of 702 human kinases and identify potential candidate upstream splicing regulators of the FGFR2 gene. HiFENS should be a useful tool for the unbiased delineation of cellular pathways involved in alternative splicing regulation.
Collapse
Affiliation(s)
- Asaf Shilo
- Cell Biology of Genomes, Center for Cancer Research (CCR), National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - Gianluca Pegoraro
- High-Throughput Imaging Facility (HiTIF), Center for Cancer Research (CCR), National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - Tom Misteli
- To whom correspondence should be addressed. Tel: +1 240 670 6669; Fax: +1 240 670 6670;
| |
Collapse
|
8
|
Thanh Thi Ngoc Nguyen, Nguyen THN, Phan HN, Nguyen HT. Seven-Single Nucleotide Polymorphism Polygenic Risk Score for Breast Cancer Risk Prediction in a Vietnamese Population. CYTOL GENET+ 2022. [DOI: 10.3103/s0095452722040065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
9
|
Proteomic analysis of hypothalamus in prepubertal and pubertal female goat. J Proteomics 2022; 251:104411. [PMID: 34728423 DOI: 10.1016/j.jprot.2021.104411] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/28/2021] [Accepted: 10/19/2021] [Indexed: 12/12/2022]
Abstract
The functions of proteins at the onset of puberty in goats remain largely unexplored. To identify the proteins regulating puberty in goats, we analysed protein abundance and pathways in the hypothalamus of female goats. We applied tandem mass tag (TMT) labelling, liquid chromatography-tandem mass spectrometry (LC-MS/MS), and parallel reaction monitoring (PRM) to examine hypothalamus of pubertal (cases; n = 3) and prepubertal (controls; n = 3) goats. We identified 5119 proteins, including 69 differentially abundant proteins (DAPs), of which 35 were upregulated and 34 were downregulated. Fourteen DAPs were randomly selected to verify these results using PRM, and the results were consistent with the TMT quantitative results. DAPs were enriched in MAPK signalling pathway, Ras signalling pathway, Autophagy-animal, Endocytosis, and PI3K/Akt/mTOR signalling pathway categories. These pathways are related to embryogenesis, cell proliferation, cell differentiation, and promoting the release of gonadotropin-releasing hormone (GnRH) in the hypothalamus. In particular, PDGFRβ and MAP3K7 occupied important locations in the protein-protein interaction network. The results demonstrate that DAPs and their related signalling pathways are crucial in regulating puberty in goats. However, further research is needed to explore the functions of DAPs and their pathways to provide new insights into the mechanism of puberty onset. SIGNIFICANCE: In domestic animals, reaching the age of puberty is an event that contributes significantly to lifetime reproductive potential. And the hypothalamus functions directly in the complex systemic changes that control puberty. Our study was the first TMT proteomics analysis on hypothalamus tissues of pubertal goats, which revealed the changes of protein and pathways that are related to the onset of puberty. We identified 69 DAPs, which were enriched in the MAPK signaling pathway, the Ras signaling pathway, and the IGF-1/PI3K/Akt/mTOR pathway, suggesting that these processes were probably involved in the onset of puberty.
Collapse
|
10
|
Bergman DR, Karikomi MK, Yu M, Nie Q, MacLean AL. Modeling the effects of EMT-immune dynamics on carcinoma disease progression. Commun Biol 2021; 4:983. [PMID: 34408236 PMCID: PMC8373868 DOI: 10.1038/s42003-021-02499-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 07/27/2021] [Indexed: 02/07/2023] Open
Abstract
During progression from carcinoma in situ to an invasive tumor, the immune system is engaged in complex sets of interactions with various tumor cells. Tumor cell plasticity alters disease trajectories via epithelial-to-mesenchymal transition (EMT). Several of the same pathways that regulate EMT are involved in tumor-immune interactions, yet little is known about the mechanisms and consequences of crosstalk between these regulatory processes. Here we introduce a multiscale evolutionary model to describe tumor-immune-EMT interactions and their impact on epithelial cancer progression from in situ to invasive disease. Through simulation of patient cohorts in silico, the model predicts that a controllable region maximizes invasion-free survival. This controllable region depends on properties of the mesenchymal tumor cell phenotype: its growth rate and its immune-evasiveness. In light of the model predictions, we analyze EMT-inflammation-associated data from The Cancer Genome Atlas, and find that association with EMT worsens invasion-free survival probabilities. This result supports the predictions of the model, and leads to the identification of genes that influence outcomes in bladder and uterine cancer, including FGF pathway members. These results suggest new means to delay disease progression, and demonstrate the importance of studying cancer-immune interactions in light of EMT.
Collapse
Affiliation(s)
- Daniel R. Bergman
- grid.266093.80000 0001 0668 7243Department of Mathematics, University of California, Irvine, CA USA
| | - Matthew K. Karikomi
- grid.266093.80000 0001 0668 7243Department of Mathematics, University of California, Irvine, CA USA
| | - Min Yu
- grid.42505.360000 0001 2156 6853USC Norris Comprehensive Cancer Center, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA ,grid.42505.360000 0001 2156 6853Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA USA
| | - Qing Nie
- grid.266093.80000 0001 0668 7243Department of Mathematics, University of California, Irvine, CA USA ,grid.266093.80000 0001 0668 7243Department of Cell and Developmental Biology, University of California, Irvine, CA USA
| | - Adam L. MacLean
- grid.266093.80000 0001 0668 7243Department of Mathematics, University of California, Irvine, CA USA ,grid.42505.360000 0001 2156 6853USC Norris Comprehensive Cancer Center, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA ,grid.42505.360000 0001 2156 6853Department of Quantitative and Computational Biology, University of Southern California, Los Angeles, CA, USA
| |
Collapse
|
11
|
Ferguson HR, Smith MP, Francavilla C. Fibroblast Growth Factor Receptors (FGFRs) and Noncanonical Partners in Cancer Signaling. Cells 2021; 10:1201. [PMID: 34068954 PMCID: PMC8156822 DOI: 10.3390/cells10051201] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/06/2021] [Accepted: 05/09/2021] [Indexed: 02/07/2023] Open
Abstract
Increasing evidence indicates that success of targeted therapies in the treatment of cancer is context-dependent and is influenced by a complex crosstalk between signaling pathways and between cell types in the tumor. The Fibroblast Growth Factor (FGF)/FGF receptor (FGFR) signaling axis highlights the importance of such context-dependent signaling in cancer. Aberrant FGFR signaling has been characterized in almost all cancer types, most commonly non-small cell lung cancer (NSCLC), breast cancer, glioblastoma, prostate cancer and gastrointestinal cancer. This occurs primarily through amplification and over-expression of FGFR1 and FGFR2 resulting in ligand-independent activation. Mutations and translocations of FGFR1-4 are also identified in cancer. Canonical FGF-FGFR signaling is tightly regulated by ligand-receptor combinations as well as direct interactions with the FGFR coreceptors heparan sulfate proteoglycans (HSPGs) and Klotho. Noncanonical FGFR signaling partners have been implicated in differential regulation of FGFR signaling. FGFR directly interacts with cell adhesion molecules (CAMs) and extracellular matrix (ECM) proteins, contributing to invasive and migratory properties of cancer cells, whereas interactions with other receptor tyrosine kinases (RTKs) regulate angiogenic, resistance to therapy, and metastatic potential of cancer cells. The diversity in FGFR signaling partners supports a role for FGFR signaling in cancer, independent of genetic aberration.
Collapse
Affiliation(s)
- Harriet R. Ferguson
- Division of Molecular and Cellular Function, School of Biological Science, Faculty of Biology Medicine and Health (FBMH), The University of Manchester, Manchester M13 9PT, UK;
| | - Michael P. Smith
- Division of Molecular and Cellular Function, School of Biological Science, Faculty of Biology Medicine and Health (FBMH), The University of Manchester, Manchester M13 9PT, UK;
| | - Chiara Francavilla
- Division of Molecular and Cellular Function, School of Biological Science, Faculty of Biology Medicine and Health (FBMH), The University of Manchester, Manchester M13 9PT, UK;
- Manchester Breast Centre, Manchester Cancer Research Centre, The University of Manchester, Manchester M20 4GJ, UK
| |
Collapse
|
12
|
Epstein RJ, Tian LJ, Gu YF. 2b or Not 2b: How Opposing FGF Receptor Splice Variants Are Blocking Progress in Precision Oncology. JOURNAL OF ONCOLOGY 2021; 2021:9955456. [PMID: 34007277 PMCID: PMC8110382 DOI: 10.1155/2021/9955456] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 04/21/2021] [Indexed: 01/16/2023]
Abstract
More than ten thousand peer-reviewed studies have assessed the role of fibroblast growth factors (FGFs) and their receptors (FGFRs) in cancer, but few patients have yet benefited from drugs targeting this molecular family. Strategizing how best to use FGFR-targeted drugs is complicated by multiple variables, including RNA splicing events that alter the affinity of ligands for FGFRs and hence change the outcomes of stromal-epithelial interactions. The effects of splicing are most relevant to FGFR2; expression of the FGFR2b splice isoform can restore apoptotic sensitivity to cancer cells, whereas switching to FGFR2c may drive tumor progression by triggering epithelial-mesenchymal transition. The differentiating and regulatory actions of wild-type FGFR2b contrast with the proliferative actions of FGFR1 and FGFR3, and may be converted to mitogenicity either by splice switching or by silencing of tumor suppressor genes such as CDH1 or PTEN. Exclusive use of small-molecule pan-FGFR inhibitors may thus cause nonselective blockade of FGFR2 isoforms with opposing actions, undermining the rationale of FGFR2 drug targeting. This splice-dependent ability of FGFR2 to switch between tumor-suppressing and -driving functions highlights an unmet oncologic need for isoform-specific drug targeting, e.g., by antibody inhibition of ligand-FGFR2c binding, as well as for more nuanced molecular pathology prediction of FGFR2 actions in different stromal-tumor contexts.
Collapse
Affiliation(s)
- Richard J. Epstein
- New Hope Cancer Center, Beijing United Hospital, 9-11 Jiangtai West Rd, Chaoyang, Beijing 100015, China
- Garvan Institute of Medical Research and UNSW Clinical School, 84 Victoria St, Darlinghurst 2010 Sydney, Australia
| | - Li Jun Tian
- New Hope Cancer Center, Beijing United Hospital, 9-11 Jiangtai West Rd, Chaoyang, Beijing 100015, China
| | - Yan Fei Gu
- New Hope Cancer Center, Beijing United Hospital, 9-11 Jiangtai West Rd, Chaoyang, Beijing 100015, China
| |
Collapse
|
13
|
Sengal AT, Smith D, Rogers R, Snell CE, Williams ED, Pollock PM. Fibroblast Growth Factor Receptor 2 Isoforms Detected via Novel RNA ISH as Predictive Biomarkers for Progestin Therapy in Atypical Hyperplasia and Low-Grade Endometrial Cancer. Cancers (Basel) 2021; 13:cancers13071703. [PMID: 33916719 PMCID: PMC8038411 DOI: 10.3390/cancers13071703] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/22/2021] [Accepted: 03/30/2021] [Indexed: 12/19/2022] Open
Abstract
Simple Summary Women diagnosed with low-grade endometrioid cancer (EEC) and its precursor lesion, atypical hyperplasia (AH) are frequently treated with hormonal therapy including levonorgestrel releasing intrauterine device (LNG-IUD) as an alternative to surgery. Biomarkers that inform which group of patients are more likely to respond to LNG-IUD are not available. The aim of this study was to document the response rate to LNG-IUD therapy in women with AH and EEC and identify potential biomarkers to guide treatment response. The overall response rate (ORR) for the whole cohort was 30/69 (~44%) with a higher ORR seen in AH (64%) compared to EEC (23%). Fibroblast Growth Factor Receptor (FGFR2) isoforms were detected using RNA in situ hybridization. The FGFR2c isoform was expressed in 16.7% of the samples, with those expressing FGFR2c 5-times more likely to have treatment failure. FGFR2 isoform expression could be used to guide treatment decisions following confirmation of this finding in an independent study. Abstract Women with atypical hyperplasia (AH) or well-differentiated early-stage endometrioid endometrial carcinoma (EEC) who wish to retain fertility and/or with comorbidities precluding surgery, are treated with progestin. Clinically approved predictive biomarkers for progestin therapy remain an unmet need. The objectives of this study were to document the overall response rate (ORR) of levonorgestrel intrauterine device (LNG-IUD) treatment, and determine the association of FGFR2b and FGFR2c expression with treatment outcome. BaseScope RNA ISH assay was utilized to detect expression of FGFR2b and FGFR2c mRNA in the diagnostic biopsies of 89 women (40 AH and 49 EEC) treated with LNG-IUD. Detailed clinical follow-up was available for 69 women which revealed an overall response rate (ORR) of 44% (30/69) with a higher ORR seen in AH (64%) compared to EEC (23%). The recurrence rate in women who initially responded to LNG-IUD was 10/30 (33.3%). RNA ISH was successful in 72 patients and showed FGFR2c expression in 12/72 (16.7%) samples. In the 59 women with detailed clinical follow-up and RNA-ISH data, women with tumours expressing FGFR2c were 5-times more likely to have treatment failure in both univariable (HR 5.08, p < 0.0001) and multivariable (HR 4.5, p < 0.002) Cox regression analyses. In conclusion, FGFR2c expression appears to be strongly associated with progestin treatment failure, albeit the ORR is lower in this cohort than previously reported. Future work to validate these findings in an independent multi-institutional cohort is needed.
Collapse
Affiliation(s)
- Asmerom T. Sengal
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Translational Research Institute, Princess Alexandra (PA) Hospital Campus, 37 Kent St., Woolloongabba, Brisbane, Queensland 4102, Australia; (A.T.S.); (E.D.W.)
| | - Deborah Smith
- Mater Pathology, Mater Research and University of Queensland, Mater Hospital, Raymond Terrace, South Brisbane, Queensland 4101, Australia; (D.S.); (C.E.S.)
| | - Rebecca Rogers
- Mater Pathology, Mater Research, Mater Hospital, Raymond Terrace, South Brisbane, Queensland 4101, Australia;
| | - Cameron E. Snell
- Mater Pathology, Mater Research and University of Queensland, Mater Hospital, Raymond Terrace, South Brisbane, Queensland 4101, Australia; (D.S.); (C.E.S.)
| | - Elizabeth D. Williams
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Translational Research Institute, Princess Alexandra (PA) Hospital Campus, 37 Kent St., Woolloongabba, Brisbane, Queensland 4102, Australia; (A.T.S.); (E.D.W.)
| | - Pamela M. Pollock
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Translational Research Institute, Princess Alexandra (PA) Hospital Campus, 37 Kent St., Woolloongabba, Brisbane, Queensland 4102, Australia; (A.T.S.); (E.D.W.)
- Correspondence: ; Tel.: +61-733437237
| |
Collapse
|
14
|
Narla ST, Bushnell DS, Schaefer CM, Nouraie M, Tometich JT, Hand TW, Bates CM. Loss of Fibroblast Growth Factor Receptor 2 (FGFR2) Leads to Defective Bladder Urothelial Regeneration after Cyclophosphamide Injury. THE AMERICAN JOURNAL OF PATHOLOGY 2020; 191:631-651. [PMID: 33385344 DOI: 10.1016/j.ajpath.2020.12.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 11/03/2020] [Accepted: 12/10/2020] [Indexed: 10/22/2022]
Abstract
Cyclophosphamide may cause hemorrhagic cystitis and eventually bladder urothelial cancer. Genetic determinants for poor outcomes are unknown. We assessed actions of fibroblast growth factor receptor (FGFR) 2 in urothelium after cyclophosphamide exposure. Conditional urothelial deletion of Fgfr2 (Fgfr2KO) did not affect injury severity or proliferation of keratin 14+ (KRT14+) basal progenitors or other urothelial cells 1 day after cyclophosphamide exposure. Three days after cyclophosphamide exposure, Fgfr2KO urothelium had defective regeneration, fewer cells, larger basal cell bodies and nuclei, paradoxical increases in proliferation markers, and excessive replication stress versus controls. Fgfr2KO mice had evidence of pathologic basal cell endoreplication associated with absent phosphorylated ERK staining and decreased p53 expression versus controls. Mice with conditional deletion of Fgfr2 in urothelium enriched for KRT14+ cells reproduced Fgfr2KO abnormalities after cyclophosphamide exposure. Fgfr2KO urothelium had defects up to 6 months after injury versus controls, including larger basal cells and nuclei, more persistent basal and ectopic lumenal KRT14+ cells, and signs of metaplasia (attenuated E-cadherin staining). Mice missing one allele of Fgfr2 also had (less severe) regeneration defects and basal cell endoreplication 3 days after cyclophosphamide exposure versus controls. Thus, reduced FGFR2/ERK signaling apparently leads to abnormal urothelial repair after cyclophosphamide exposure from pathologic basal cell endoreplication. Patients with genetic variants in FGFR2 or its ligands may have increased risks of hemorrhagic cystitis or urothelial cancer from persistent and ectopic KRT14+ cells.
Collapse
Affiliation(s)
- Sridhar T Narla
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Daniel S Bushnell
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Caitlin M Schaefer
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Mehdi Nouraie
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Justin T Tometich
- Mellon Institute for Pediatric Research, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Infectious Disease Section, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania
| | - Timothy W Hand
- Mellon Institute for Pediatric Research, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Infectious Disease Section, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania
| | - Carlton M Bates
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Division of Nephrology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania.
| |
Collapse
|
15
|
Di Matteo A, Belloni E, Pradella D, Cappelletto A, Volf N, Zacchigna S, Ghigna C. Alternative splicing in endothelial cells: novel therapeutic opportunities in cancer angiogenesis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2020; 39:275. [PMID: 33287867 PMCID: PMC7720527 DOI: 10.1186/s13046-020-01753-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 10/26/2020] [Indexed: 02/07/2023]
Abstract
Alternative splicing (AS) is a pervasive molecular process generating multiple protein isoforms, from a single gene. It plays fundamental roles during development, differentiation and maintenance of tissue homeostasis, while aberrant AS is considered a hallmark of multiple diseases, including cancer. Cancer-restricted AS isoforms represent either predictive biomarkers for diagnosis/prognosis or targets for anti-cancer therapies. Here, we discuss the contribution of AS regulation in cancer angiogenesis, a complex process supporting disease development and progression. We consider AS programs acting in a specific and non-redundant manner to influence morphological and functional changes involved in cancer angiogenesis. In particular, we describe relevant AS variants or splicing regulators controlling either secreted or membrane-bound angiogenic factors, which may represent attractive targets for therapeutic interventions in human cancer.
Collapse
Affiliation(s)
- Anna Di Matteo
- Istituto di Genetica Molecolare, "Luigi Luca Cavalli-Sforza", Consiglio Nazionale delle Ricerche, via Abbiategrasso 207, 27100, Pavia, Italy
| | - Elisa Belloni
- Istituto di Genetica Molecolare, "Luigi Luca Cavalli-Sforza", Consiglio Nazionale delle Ricerche, via Abbiategrasso 207, 27100, Pavia, Italy
| | - Davide Pradella
- Istituto di Genetica Molecolare, "Luigi Luca Cavalli-Sforza", Consiglio Nazionale delle Ricerche, via Abbiategrasso 207, 27100, Pavia, Italy
| | - Ambra Cappelletto
- Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149, Trieste, Italy
| | - Nina Volf
- Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149, Trieste, Italy
| | - Serena Zacchigna
- Cardiovascular Biology Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149, Trieste, Italy. .,Department of Medical, Surgical and Health Sciences, University of Trieste, 34149, Trieste, Italy.
| | - Claudia Ghigna
- Istituto di Genetica Molecolare, "Luigi Luca Cavalli-Sforza", Consiglio Nazionale delle Ricerche, via Abbiategrasso 207, 27100, Pavia, Italy.
| |
Collapse
|
16
|
Qin Q, Patel V, Galsky MD. Urothelial carcinoma: the development of FGFR inhibitors in combination with immune checkpoint inhibitors. Expert Rev Anticancer Ther 2020; 20:503-512. [PMID: 32436413 DOI: 10.1080/14737140.2020.1770600] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
INTRODUCTION The recent approval of erdafitinib and the emergence of other potent and selective fibroblast growth factor receptor (FGFR) inhibitors (FGFRi's) are shifting the treatment paradigm for patients with advanced urothelial carcinoma (UC) harboring FGFR3 alterations. Whether such therapies can, and should, be combined with immune checkpoint inhibitors (ICI's) is an area of major research interest. Areas covered: Herein, we review the FGFR signaling pathway and impact of altered FGFR signaling on UC tumorigenesis, the clinical development of FGFRi's, the rationale for FGFRi-ICI combinations, current trials, and future directions. Expert opinion: FGFR3 altered UCs are not less responsive to ICI's compared with FGFR3 wild-type (WT) tumors. However, FGFR3 altered tumors may exhibit distinct immunobiology compared with WT tumors that could potentially be exploited therapeutically. Given these considerations along with the clinical non-cross resistance of these therapeutic classes, clinical investigation of regimens combining FGFR3i and ICI is warranted.
Collapse
Affiliation(s)
- Qian Qin
- Department of Medicine, Division of Hematology and Medical Oncology, the Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai , New York, NY, USA
| | - Vaibhav Patel
- Department of Medicine, Division of Hematology and Medical Oncology, the Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai , New York, NY, USA
| | - Matthew D Galsky
- Department of Medicine, Division of Hematology and Medical Oncology, the Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai , New York, NY, USA
| |
Collapse
|
17
|
Jun BG, Lee WC, Jang JY, Jeong SW, Chang Y, Lee SH, Kim YD, Kim SG, Cheon GJ, Kim YS, Kim HS, Jin SY. Relation of fibroblast growth factor receptor 2 expression to hepatocellular carcinoma recurrence after liver resection. PLoS One 2020; 15:e0227440. [PMID: 31940413 PMCID: PMC6961981 DOI: 10.1371/journal.pone.0227440] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 12/18/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) recurrence after liver resection depends upon the stage and histological grade of the tumor and the expression of certain biomarkers. However, it remains unclear which of these factors has the highest predictive value regarding HCC recurrence after surgical resection. METHODS This study investigated the associations among clinicopathological characteristics, expression of biomarkers, and HCC recurrence after liver resection. Fifty-four patients having undergone liver resection for HCC were enrolled prospectively, and their data were analyzed retrospectively. Evaluated variables were clinical data, laboratory findings, modified Union for International Cancer Control (UICC) stage, vascular invasion, histological differentiation, and immunohistochemical staining for fibroblast growth factor receptor 2 (FGFR2), vascular endothelial growth factor, and tumor-necrosis-factor-related apoptosis-inducing ligand receptors 1 and 2. RESULTS Mean patient age was 58.6 years (range, 30-71), and the mean and SD for follow-up duration were 51.2 ± 34.8 months. Cumulative 1-, 3-, and 5-year recurrence rates were 32.9%, 53.6%, and 68.1%, respectively. In univariate analysis, FGFR2 (p = 0.026) and Edmonson-Steiner grade (E-S grade) (p = 0.030) were associated with recurrence after resection in HCC patients. In multivariate analyses, increased FGFR2 expression (p = 0.017) was the only significant predictor of HCC recurrence. CONCLUSIONS High FGFR2 expression had marginal association with poor E-S grade (p = 0.056). More intensive surveillance of HCC recurrence is warranted in HCC patients with increased FGFR2 expression.
Collapse
Affiliation(s)
- Baek Gyu Jun
- Department of Internal Medicine, University of Ulsan College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - Woong Cheul Lee
- Institute for Digestive Research, Digestive Disease Center, Department of Internal Medicine, College of Medicine, Soonchunhyang University, Seoul, Korea
| | - Jae Young Jang
- Institute for Digestive Research, Digestive Disease Center, Department of Internal Medicine, College of Medicine, Soonchunhyang University, Seoul, Korea
| | - Soung Won Jeong
- Institute for Digestive Research, Digestive Disease Center, Department of Internal Medicine, College of Medicine, Soonchunhyang University, Seoul, Korea
| | - Young Chang
- Institute for Digestive Research, Digestive Disease Center, Department of Internal Medicine, College of Medicine, Soonchunhyang University, Seoul, Korea
| | - Sae Hwan Lee
- Department of Internal Medicine, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Young don Kim
- Department of Internal Medicine, University of Ulsan College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - Sang Gyune Kim
- Department of Internal Medicine, College of Medicine, Soonchunhyang University, Bucheon, Korea
| | - Gab Jin Cheon
- Department of Internal Medicine, University of Ulsan College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - Young Seok Kim
- Department of Internal Medicine, College of Medicine, Soonchunhyang University, Bucheon, Korea
| | - Hong Soo Kim
- Department of Internal Medicine, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - So Young Jin
- Department of Pathology, College of Medicine, Soonchunhyang University, Seoul, Korea
| |
Collapse
|
18
|
Teles SP, Oliveira P, Ferreira M, Carvalho J, Ferreira P, Oliveira C. Integrated Analysis of Structural Variation and RNA Expression of FGFR2 and Its Splicing Modulator ESRP1 Highlight the ESRP1amp- FGFR2norm- FGFR2-IIIchigh Axis in Diffuse Gastric Cancer. Cancers (Basel) 2019; 12:cancers12010070. [PMID: 31881796 PMCID: PMC7017189 DOI: 10.3390/cancers12010070] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 12/15/2019] [Accepted: 12/23/2019] [Indexed: 01/11/2023] Open
Abstract
Gastric Cancer (GC) is one of the most common and deadliest types of cancer in the world. To improve GC prognosis, increasing efforts are being made to develop new targeted therapies. Although FGFR2 genetic amplification and protein overexpression in GC have been targeted in clinical trials, so far no improvement in patient overall survival has been found. To address this issue, we studied genetic and epigenetic events affecting FGFR2 and its splicing regulator ESRP1 in GC that could be used as new therapeutic targets or predictive biomarkers. We performed copy number variation (CNV), DNA methylation, and RNA expression analyses of FGFR2/ESRP1 across several cohorts. We discovered that both genes were frequently amplified and demethylated in GC, resulting in increased ESRP1 expression and of a specific FGFR2 isoform: FGFR2-IIIb. We also showed that ESRP1 amplification in GC correlated with a significant decreased expression of FGFR2-IIIc, an alternative FGFR2 splicing isoform. Furthermore, when we performed a survival analysis, we observed that patients harboring diffuse-type tumors with low FGFR2-IIIc expression revealed a better overall survival than patients with FGFR2-IIIc high-expressing diffuse tumors. Our results encourage further studies on the role of ESRP1 in GC and support FGFR2-IIIc as a relevant biomarker in GC.
Collapse
Affiliation(s)
- Sara Pinto Teles
- Ipatimup—Institute of Molecular Pathology and Immunology, University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135 Porto, Portugal
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- Master in Oncology, Institute of Biomedical Sciences Abel Salazar, University of Porto (ICBAS-UP), 4050-313 Porto, Portugal
| | - Patrícia Oliveira
- Ipatimup—Institute of Molecular Pathology and Immunology, University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135 Porto, Portugal
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
| | - Marta Ferreira
- Ipatimup—Institute of Molecular Pathology and Immunology, University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135 Porto, Portugal
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
| | - Joana Carvalho
- Ipatimup—Institute of Molecular Pathology and Immunology, University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135 Porto, Portugal
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
| | - Pedro Ferreira
- Ipatimup—Institute of Molecular Pathology and Immunology, University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135 Porto, Portugal
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- Department of Computer Science, Faculty of Sciences, University of Porto, Rua Campo Alegre 1021/1055, 4169-007 Porto, Portugal
| | - Carla Oliveira
- Ipatimup—Institute of Molecular Pathology and Immunology, University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135 Porto, Portugal
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- Department Pathology and Oncology Faculty of Medicine University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
- Correspondence:
| |
Collapse
|
19
|
Gurrapu S, Franzolin G, Fard D, Accardo M, Medico E, Sarotto I, Sapino A, Isella C, Tamagnone L. Reverse signaling by semaphorin 4C elicits SMAD1/5- and ID1/3-dependent invasive reprogramming in cancer cells. Sci Signal 2019; 12:12/595/eaav2041. [DOI: 10.1126/scisignal.aav2041] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Semaphorins are a family of molecular signals that guide cell migration and are implicated in the regulation of cancer cells. In particular, transmembrane semaphorins are postulated to act as both ligands (“forward” mode) and signaling receptors (“reverse” mode); however, reverse semaphorin signaling in cancer is relatively less understood. Here, we identified a previously unknown function of transmembrane semaphorin 4C (Sema4C), acting in reverse mode, to elicit nonconventional TGF-β/BMP receptor activation and selective SMAD1/5 phosphorylation. Sema4C coimmunoprecipitated with TGFBRII and BMPR1, supporting its role as modifier of this pathway. Sema4C reverse signaling led to the increased abundance of ID1/3 transcriptional factors and to extensive reprogramming of gene expression, which suppressed the typical features of the epithelial-mesenchymal transition in invasive carcinoma cells. This phenotype was nevertheless coupled with burgeoning metastatic behavior in vivo, consistent with evidence that Sema4C expression correlates with metastatic progression in human breast cancers. Thus, Sema4C reverse signaling promoted SMAD1/5- and ID1/3-dependent gene expression reprogramming and phenotypic plasticity in invasive cancer cells.
Collapse
|
20
|
Szybowska P, Kostas M, Wesche J, Wiedlocha A, Haugsten EM. Cancer Mutations in FGFR2 Prevent a Negative Feedback Loop Mediated by the ERK1/2 Pathway. Cells 2019; 8:cells8060518. [PMID: 31146385 PMCID: PMC6627556 DOI: 10.3390/cells8060518] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 05/24/2019] [Accepted: 05/28/2019] [Indexed: 01/21/2023] Open
Abstract
Tight regulation of signaling from receptor tyrosine kinases is required for normal cellular functions and uncontrolled signaling can lead to cancer. Fibroblast growth factor receptor 2 (FGFR2) is a receptor tyrosine kinase that induces proliferation and migration. Deregulation of FGFR2 contributes to tumor progression and activating mutations in FGFR2 are found in several types of cancer. Here, we identified a negative feedback loop regulating FGFR2 signaling. FGFR2 stimulates the Ras/MAPK signaling pathway consisting of Ras-Raf-MEK1/2-ERK1/2. Inhibition of this pathway using a MEK1/2 inhibitor increased FGFR2 signaling. The putative ERK1/2 phosphorylation site at serine 780 (S780) in FGFR2 corresponds to serine 777 in FGFR1 which is directly phosphorylated by ERK1/2. Substitution of S780 in FGFR2 to an alanine also increased signaling. Truncated forms of FGFR2 lacking the C-terminal tail, including S780, have been identified in cancer and S780 has been found mutated to leucine in bladder cancer. Substituting S780 in FGFR2 with leucine increased FGFR2 signaling. Importantly, cells expressing these mutated versions of S780 migrated faster than cells expressing wild-type FGFR2. Thus, ERK1/2-mediated phosphorylation of S780 in FGFR2 constitutes a negative feedback loop and inactivation of this feedback loop in cancer cells causes hyperactivation of FGFR2 signaling, which may result in increased invasive properties.
Collapse
Affiliation(s)
- Patrycja Szybowska
- Department of Molecular Cell Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Montebello, 0379 Oslo, Norway.
- Centre for Cancer Cell Reprogramming, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Montebello, 0379 Oslo, Norway.
| | - Michal Kostas
- Centre for Cancer Cell Reprogramming, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Montebello, 0379 Oslo, Norway.
- Department of Tumor Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Montebello, 0379 Oslo, Norway.
| | - Jørgen Wesche
- Centre for Cancer Cell Reprogramming, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Montebello, 0379 Oslo, Norway.
- Department of Tumor Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Montebello, 0379 Oslo, Norway.
| | - Antoni Wiedlocha
- Department of Molecular Cell Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Montebello, 0379 Oslo, Norway.
- Centre for Cancer Cell Reprogramming, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Montebello, 0379 Oslo, Norway.
- Military Institute of Hygiene and Epidemiology, 01-163 Warsaw, Poland.
| | - Ellen Margrethe Haugsten
- Centre for Cancer Cell Reprogramming, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Montebello, 0379 Oslo, Norway.
- Department of Tumor Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Montebello, 0379 Oslo, Norway.
| |
Collapse
|
21
|
Nuclear FGFR2 negatively regulates hypoxia-induced cell invasion in prostate cancer by interacting with HIF-1 and HIF-2. Sci Rep 2019; 9:3480. [PMID: 30837551 PMCID: PMC6401139 DOI: 10.1038/s41598-019-39843-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 01/30/2019] [Indexed: 12/19/2022] Open
Abstract
The fibroblast growth factor receptor 2 (FGFR2) is a membrane receptor that promotes cell proliferation and differentiation. FGFR2 is also present in the nucleus, which raises a question on a new role of FGFR2 in regulating gene expression. Hypoxia-inducible factors 1 and 2 (HIF-1 and HIF-2) are nuclear proteins that transactivate many genes essential for cancer survival and metastasis under hypoxic conditions. Here, we investigated if nuclear FGFR2 modulates the HIF-driven hypoxic response. Using the TCGA database, we found that FGFR2 downregulation is associated with poor prognosis in prostate cancer. A gene-set enrichment analysis showed that metastasis- and hypoxia-related genes are associated with a low expression of FGFR2 in prostate cancer. Thus, we tested the possibility that FGFR2 negatively regulates the hypoxia-triggered metastasis of prostate cancer. FGFR2 controls migration and invasion of prostate cancer cells under hypoxia by inhibiting the HIF-driven gene expression. FGFR2 and HIF proteins co-localize and associate in the nucleus under hypoxia. FGFR2 interacts with the transactivation domain of HIF-1α and blocks the recruitment of coactivator p300, resulting in repression of HIF target genes. Based on these results, we propose a novel function of FGFR2 as a metastasis suppressor by controlling HIF-mediated hypoxic responses.
Collapse
|
22
|
Wang C, Liu Z, Ke Y, Wang F. Intrinsic FGFR2 and Ectopic FGFR1 Signaling in the Prostate and Prostate Cancer. Front Genet 2019; 10:12. [PMID: 30761180 PMCID: PMC6363687 DOI: 10.3389/fgene.2019.00012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 01/11/2019] [Indexed: 01/10/2023] Open
Abstract
Advanced castrate-resistant prostate cancer (CRPC) is a poorly prognostic disease currently lacking effective cure. Understanding the molecular mechanism that underlies the initiation and progression of CRPC will provide new strategies for treating this deadly disease. One candidate target is the fibroblast growth factor (FGF) signaling axis. Loss of the intrinsic FGF7/FGF10-type 2 FGF receptor (FGFR2) pathway and gain of the ectopic type 1 FGF receptor (FGFR1) pathway are associated with the progression to malignancy in prostate cancer (PCa) and many other epithelial originating lesions. Although FGFR1 and FGFR2 share similar amino acid sequences and structural domains, the two transmembrane tyrosine kinases elicit distinctive, even sometime opposite signals in cells. Recent studies have revealed that the ectopic FGFR1 signaling pathway contributes to PCa progression via multiple mechanisms, including promoting tumor angiogenesis, reprogramming cancer cell metabolism, and potentiating inflammation in the tumor microenvironment. Thus, suppression of FGFR1 signaling can be an effective novel strategy to treat CRPC.
Collapse
Affiliation(s)
- Cong Wang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Ziying Liu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China.,Institute of Biosciences and Technology, Texas A&M University, College Station, TX, United States
| | - Yuepeng Ke
- Institute of Biosciences and Technology, Texas A&M University, College Station, TX, United States
| | - Fen Wang
- Institute of Biosciences and Technology, Texas A&M University, College Station, TX, United States
| |
Collapse
|
23
|
Urbanski L, Leclair N, Anczuków O. Alternative-splicing defects in cancer: Splicing regulators and their downstream targets, guiding the way to novel cancer therapeutics. WILEY INTERDISCIPLINARY REVIEWS. RNA 2018; 9:e1476. [PMID: 29693319 PMCID: PMC6002934 DOI: 10.1002/wrna.1476] [Citation(s) in RCA: 229] [Impact Index Per Article: 38.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 02/27/2018] [Accepted: 03/01/2018] [Indexed: 12/14/2022]
Abstract
Defects in alternative splicing are frequently found in human tumors and result either from mutations in splicing-regulatory elements of specific cancer genes or from changes in the regulatory splicing machinery. RNA splicing regulators have emerged as a new class of oncoproteins and tumor suppressors, and contribute to disease progression by modulating RNA isoforms involved in the hallmark cancer pathways. Thus, dysregulation of alternative RNA splicing is fundamental to cancer and provides a potentially rich source of novel therapeutic targets. Here, we review the alterations in splicing regulatory factors detected in human tumors, as well as the resulting alternatively spliced isoforms that impact cancer hallmarks, and discuss how they contribute to disease pathogenesis. RNA splicing is a highly regulated process and, as such, the regulators are themselves tightly regulated. Differential transcriptional and posttranscriptional regulation of splicing factors modulates their levels and activities in tumor cells. Furthermore, the composition of the tumor microenvironment can also influence which isoforms are expressed in a given cell type and impact drug responses. Finally, we summarize current efforts in targeting alternative splicing, including global splicing inhibition using small molecules blocking the spliceosome or splicing-factor-modifying enzymes, as well as splice-switching RNA-based therapeutics to modulate cancer-specific splicing isoforms. This article is categorized under: RNA in Disease and Development > RNA in Disease RNA Processing > Splicing Regulation/Alternative Splicing.
Collapse
|
24
|
Liu Z, Zhang H, Ding S, Qi S, Liu S, Sun D, Dong W, Yin L, Li M, Zhao X, Lu J. βKlotho inhibits androgen/androgen receptor‑associated epithelial‑mesenchymal transition in prostate cancer through inactivation of ERK1/2 signaling. Oncol Rep 2018; 40:217-225. [PMID: 29749458 PMCID: PMC6059743 DOI: 10.3892/or.2018.6399] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Accepted: 04/04/2018] [Indexed: 12/11/2022] Open
Abstract
The epithelial-mesenchymal transition (EMT) is reported to have intimate crosstalk with androgen receptor (AR) signaling in prostate cancer (PCa) and is known to be responsible for castration resistance. Fibroblast growth factor/receptor (FGF/FGFR) signaling is also involved in tumor progression and EMT in multiple tissues. Several studies have investigated the role of βKlotho, an FGF/FGFR signaling co-receptor in tumorigenesis. However, its role in PCa remains unknown. In the present study, the role of androgen in the EMT of PCa cells was examined by western blotting. The expression of βKlotho was examined in prostate cells and PCa tissues by western blotting and immunohistochemistry, respectively. The biological role of βKlotho was revealed by a series of functional in vitro and in vivo studies. We determined that βKlotho expression was significantly decreased in PCa tissues compared with benign prostatic hyperplasia (BPH) tissues, and low βKlotho expression was associated with a high Gleason score of PCa. βKlotho overexpression inhibited the viability, migration, and androgen/AR-associated EMT of PCa cells through the inactivation of ERK1/2 signaling. Notably, βKlotho overexpression inhibited prostate tumor growth and EMT in vivo. Knockdown of βKlotho produced the opposite effects. In conclusion, βKlotho inhibits EMT and plays a tumor-suppressive role in PCa, linking FGF/FGFR/βKlotho signaling to the regulation of PCa progression.
Collapse
Affiliation(s)
- Zhao Liu
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Hui Zhang
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Sentai Ding
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Shasha Qi
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Shuai Liu
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Dingqi Sun
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Wei Dong
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Lei Yin
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Mingjiang Li
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Xingbo Zhao
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Jiaju Lu
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| |
Collapse
|
25
|
Lei H, Deng CX. Fibroblast Growth Factor Receptor 2 Signaling in Breast Cancer. Int J Biol Sci 2017; 13:1163-1171. [PMID: 29104507 PMCID: PMC5666331 DOI: 10.7150/ijbs.20792] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Accepted: 05/18/2017] [Indexed: 01/03/2023] Open
Abstract
Fibroblast growth factor receptor 2 (FGFR2) is a membrane-spanning tyrosine kinase that mediates signaling for FGFs. Recent studies detected various point mutations of FGFR2 in multiple types of cancers, including breast cancer, lung cancer, gastric cancer, uterine cancer and ovarian cancer, yet the casual relationship between these mutations and tumorigenesis is unclear. Here we will discuss possible interactions between FGFR2 signaling and several major pathways through which the aberrantly activated FGFR2 signaling may result in breast cancer development. We will also discuss some recent developments in the discovery and application of therapies and strategies for breast cancers by inhibiting FGFR2 activities.
Collapse
Affiliation(s)
- Haipeng Lei
- Faculty of Health Sciences, University of Macau, Macau SAR, China
| | - Chu-Xia Deng
- Faculty of Health Sciences, University of Macau, Macau SAR, China
| |
Collapse
|
26
|
Huang T, Wang L, Liu D, Li P, Xiong H, Zhuang L, Sun L, Yuan X, Qiu H. FGF7/FGFR2 signal promotes invasion and migration in human gastric cancer through upregulation of thrombospondin-1. Int J Oncol 2017; 50:1501-1512. [PMID: 28339036 PMCID: PMC5403236 DOI: 10.3892/ijo.2017.3927] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Accepted: 03/03/2017] [Indexed: 02/07/2023] Open
Abstract
Fibroblast growth factor 7 (FGF7) is a mesenchyme-specific heparin-binding growth factor that binds FGF receptor 2 (FGFR2) to regulate numerous cellular and physiological processes. FGF7/FGFR2 signal is associated with gastric cancer progression. In the present study, we investigated the molecular mechanism by which FGF7/FGFR2 promotes invasion and migration in human gastric cancer. We first demonstrated that increased FGFR2 expression in human gastric cancer tissues was significantly associated with tumor depth and clinical stage in human gastric cancer tissues. Thrombospondin 1 (THBS1) is an extracellular glycoprotein that plays multiple roles in cell-matrix and cell-cell interactions. Increased expression of THBS1 significantly correlated with tumor differentiation. FGFR2 and THBS1 expression were both increased in cancer tissues as compared with adjacent normal tissues and their expression was positively correlated. In vitro, FGF7 stimulation of cell invasion and migration was partially suppressed by the FGFR2 knockdown. In addition, FGF7/FGFR2 upregulated THBS1, and cell invasion and migration were decreased by knockdown of THBS1. Furthermore, the PI3K/Akt/mTOR signaling pathway was predominantly responsible for FGF7/FGFR2-induced THBS1 upregulation. Taken together, our data suggest that FGF7/FGFR2/THBS1 is associated with the regulation of invasion and migration in human gastric cancer.
Collapse
Affiliation(s)
- Tingting Huang
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Lei Wang
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Dian Liu
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Piao Li
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Huihua Xiong
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Liang Zhuang
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Li Sun
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Xianglin Yuan
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Hong Qiu
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| |
Collapse
|
27
|
di Martino E, Tomlinson DC, Williams SV, Knowles MA. A place for precision medicine in bladder cancer: targeting the FGFRs. Future Oncol 2016; 12:2243-63. [PMID: 27381494 DOI: 10.2217/fon-2016-0042] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Bladder tumors show diverse molecular features and clinical outcome. Muscle-invasive bladder cancer has poor prognosis and novel approaches to systemic therapy are urgently required. Non-muscle-invasive bladder cancer has good prognosis, but high recurrence rate and the requirement for life-long disease monitoring places a major burden on patients and healthcare providers. Studies of tumor tissues from both disease groups have identified frequent alterations of FGFRs, including mutations of FGFR3 and dysregulated expression of FGFR1 and FGFR3 that suggest that these may be valid therapeutic targets. We summarize current understanding of the molecular alterations affecting these receptors in bladder tumors, preclinical studies validating them as therapeutic targets, available FGFR-targeted agents and results from early clinical trials in bladder cancer patients.
Collapse
Affiliation(s)
- Erica di Martino
- Section of Molecular Oncology, Leeds Institute of Cancer & Pathology, St James's University Hospital, Beckett Street, Leeds, LS9 7TF, UK
| | - Darren C Tomlinson
- Astbury Centre for Structural & Molecular Biology, School of Molecular & Cellular Biology, Astbury Building, University of Leeds, Leeds, LS2 9JT, UK
| | - Sarah V Williams
- Section of Molecular Oncology, Leeds Institute of Cancer & Pathology, St James's University Hospital, Beckett Street, Leeds, LS9 7TF, UK
| | - Margaret A Knowles
- Section of Molecular Oncology, Leeds Institute of Cancer & Pathology, St James's University Hospital, Beckett Street, Leeds, LS9 7TF, UK
| |
Collapse
|
28
|
Vadija R, Mustyala KK, Nambigari N, Dulapalli R, Dumpati RK, Ramatenki V, Vellanki SP, Vuruputuri U. Homology modeling and virtual screening studies of FGF-7 protein-a structure-based approach to design new molecules against tumor angiogenesis. J Chem Biol 2016; 9:69-78. [PMID: 27493695 DOI: 10.1007/s12154-016-0152-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 06/09/2016] [Indexed: 01/10/2023] Open
Abstract
Keratinocyte growth factor (KGF) protein is a member of the fibroblast growth factor (FGF) family, which is also known as FGF-7. The FGF-7 plays an important role in tumor angiogenesis. In the present work, FGF-7 is treated as a potential therapeutic target to prevent angiogenesis in cancerous tissue. Computational techniques are applied to evaluate and validate the 3D structure of FGF-7 protein. The active site region of the FGF-7 protein is identified based on hydrophobicity calculations using CASTp and Q-site Finder active site prediction tools. The protein-protein docking study of FGF-7 with its natural receptor FGFR2b is carried out to confirm the active site region in FGF-7. The amino acid residues Asp34, Arg67, Glu116, and Thr194 in FGF-7 interact with the receptor protein (FGFR2b). A grid is generated at the active site region of FGF-7 using Glide module of Schrödinger suite. Subsequently, a virtual screening study is carried out at the active site using small molecular structural databases to identify the ligand molecules. The binding interactions of the ligand molecules, with piperazine moiety as a pharmacophore, are observed at Arg67 and Glu149 residues of the FGF-7 protein. The identified ligand molecules against the FGF-7 protein show permissible pharmacokinetic properties (ADME). The ligand molecules with good docking scores and satisfactory pharmacokinetic properties are prioritized and identified as novel ligands for the FGF-7 protein in cancer therapy.
Collapse
Affiliation(s)
- Rajender Vadija
- Department of Chemistry, University College of Science, Osmania University, Tarnaka, Hyderabad, Telangana State 500007 India
| | - Kiran Kumar Mustyala
- Department of Chemistry, University College of Science, Osmania University, Tarnaka, Hyderabad, Telangana State 500007 India
| | - Navaneetha Nambigari
- Department of Chemistry, University College of Science Saifabad, Osmania University, Saifabad, Hyderabad, Telangana State 500004 India
| | - Ramasree Dulapalli
- Department of Chemistry, University College of Science, Osmania University, Tarnaka, Hyderabad, Telangana State 500007 India
| | - Rama Krishna Dumpati
- Department of Chemistry, University College of Science, Osmania University, Tarnaka, Hyderabad, Telangana State 500007 India
| | - Vishwanath Ramatenki
- Department of Chemistry, University College of Science, Osmania University, Tarnaka, Hyderabad, Telangana State 500007 India
| | - Santhi Prada Vellanki
- Department of Chemistry, University College of Science, Osmania University, Tarnaka, Hyderabad, Telangana State 500007 India
| | - Uma Vuruputuri
- Department of Chemistry, University College of Science, Osmania University, Tarnaka, Hyderabad, Telangana State 500007 India
| |
Collapse
|
29
|
Ang C. Role of the fibroblast growth factor receptor axis in cholangiocarcinoma. J Gastroenterol Hepatol 2015; 30:1116-22. [PMID: 25678238 DOI: 10.1111/jgh.12916] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/22/2015] [Indexed: 02/06/2023]
Abstract
Advanced cholangiocarcinoma (CCA) is a highly lethal disease with limited therapeutic options beyond cytotoxic chemotherapy. Molecular profiling of CCA has provided insights into the pathogenesis of this disease and identified potential therapeutic targets. The fibroblast growth factor receptor (FGFR) axis is important for maintaining tissue homeostasis. Aberrations in FGFR activity have been implicated in the development and progression of CCA and other malignancies, which has generated significant interest in exploring FGFR's therapeutic potential. FGFR2 fusion events are present in up to 17% of intrahepatic CCAs and appear to predict sensitivity to FGFR inhibitors even after progression on chemotherapy. These observations have led to a clinical trial evaluating FGFR inhibition in patients with CCA enriched for FGFR alterations. This review summarizes current knowledge about the role of the FGFR pathway in cholangiocarcinogenesis and ongoing work in developing FGFR-directed therapies as an antineoplastic strategy for CCA.
Collapse
Affiliation(s)
- Celina Ang
- Division of Medicine, Hematology, and Medical Oncology, Mount Sinai School of Medicine, New York, New York, USA
| |
Collapse
|
30
|
Ceccarelli S, Bei R, Vescarelli E, D'Amici S, di Gioia C, Modesti A, Romano F, Redler A, Marchese C, Angeloni A. Potential prognostic and diagnostic application of a novel monoclonal antibody against keratinocyte growth factor receptor. Mol Biotechnol 2015; 56:939-52. [PMID: 24899248 PMCID: PMC4155171 DOI: 10.1007/s12033-014-9773-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
KGFR is involved in the pathogenesis of several human cancers. In this study, we generated and characterized a monoclonal antibody specific to KGFR (SC-101 mAb) and evaluated its potential use in basic research and as a diagnostic and prognostic tool. The specificity and biological activity of the SC-101 mAb were evaluated by Western blotting, immunofluorescence, and immunoprecipitation analyses on various cell lines. KGFR expression in breast, pancreatic, and thyroid carcinoma was assessed by immunohistochemistry (IHC) with SC-101 mAb. KGFR expression levels revealed by SC-101 mAb resulted to increase proportionally with tumor grade in breast and pancreatic cancer. In addition, SC-101 mAb was able to detect KGFR down-modulation in thyroid cancer. SC-101 mAb might represent a useful tool for basic research applications, and it could also contribute to improve the accuracy of diagnosis and prognosis of epithelial tumors.
Collapse
Affiliation(s)
- Simona Ceccarelli
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy,
| | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Gong SG. Isoforms of Receptors of Fibroblast Growth Factors. J Cell Physiol 2014; 229:1887-95. [DOI: 10.1002/jcp.24649] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Accepted: 04/10/2014] [Indexed: 01/12/2023]
Affiliation(s)
- Siew-Ging Gong
- Faculty of Dentistry; University of Toronto; Toronto Ontario Canada
| |
Collapse
|
32
|
Pu D, Hou M. [Advanced research of fibroblast growth factor receptor in non-small cell lung cancer]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2014; 16:609-14. [PMID: 24229629 PMCID: PMC6000615 DOI: 10.3779/j.issn.1009-3419.2013.11.10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Lung cancer is severely threatening human health. In recent years, the treatment for lung adenocarcinoma has made a great progress, targeted therapy has been widely applied in clinic, and benefits amount of patients. However, in squamous cell lung cancer, the incidence of epidermal growth factor receptor (EGFR) gene mutant and ALK fusion gene are low,and targeted therapy like Tarceva and crizotinib, can hardly work. Since the fibroblast growth factors (fibroblast growth factor, FGF) pathway is considered to be related to tumor cell proliferation, metastasis and angiogenesis, more and more researches proved the amplification of fibroblast growth factor receptor (FGFR) in squamous cell lung cancer. Experiments in vivo and in vitro found that blocking FGF pathway could reduce the proliferation of tumor cells and inhibit metastasis. The FGF pathway might be a new target for treatment of squamous cell lung cancer. This article reviews the effect of FGFR in tumorigenesis,as well as the prospect as a therapeutic target in non-small cell lung cancer.
Collapse
Affiliation(s)
- Dan Pu
- Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | | |
Collapse
|
33
|
Finch PW, Mark Cross LJ, McAuley DF, Farrell CL. Palifermin for the protection and regeneration of epithelial tissues following injury: new findings in basic research and pre-clinical models. J Cell Mol Med 2014; 17:1065-87. [PMID: 24151975 PMCID: PMC4118166 DOI: 10.1111/jcmm.12091] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 05/06/2013] [Accepted: 05/15/2013] [Indexed: 02/06/2023] Open
Abstract
Keratinocyte growth factor (KGF) is a paracrine-acting epithelial mitogen produced by cells of mesenchymal origin, that plays an important role in protecting and repairing epithelial tissues. Pre-clinical data initially demonstrated that a recombinant truncated KGF (palifermin) could reduce gastrointestinal injury and mortality resulting from a variety of toxic exposures. Furthermore, the use of palifermin in patients with hematological malignancies reduced the incidence and duration of severe oral mucositis experienced after intensive chemoradiotherapy. Based upon these findings, as well as the observation that KGF receptors are expressed in many, if not all, epithelial tissues, pre-clinical studies have been conducted to determine the efficacy of palifermin in protecting different epithelial tissues from toxic injury in an attempt to model various clinical situations in which it might prove to be of benefit in limiting tissue damage. In this article, we review these studies to provide the pre-clinical background for clinical trials that are described in the accompanying article and the rationale for additional clinical applications of palifermin.
Collapse
|
34
|
Schweiger N, Hauck M, Steinhoff H, Sampl S, Reifinger M, Walter I, Kreilmeier T, Marian B, Grusch M, Berger W, Holzmann K, Kleiter M. Canine and human sarcomas exhibit predominant FGFR1 expression and impaired viability after inhibition of signaling. Mol Carcinog 2014; 54:841-52. [PMID: 24719266 DOI: 10.1002/mc.22155] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 03/18/2014] [Accepted: 03/18/2014] [Indexed: 02/03/2023]
Abstract
Fibroblast growth factor receptors (FGFRs) are important in malignant progression of several human epithelial tumors. However, little is known about FGFRs in canine or human soft tissue sarcomas. Thus, our aim was to investigate expression of FGFRs and their involvement in cell survival in sarcomas of both species. FGFR1-4 and FGFRL1 transcripts as well as IIIb/IIIc splice variants of FGFR1-3 were evaluated in 3 canine- and 6 human sarcoma cell lines and 19 spontaneous canine sarcomas by SYBRqPCR. FGFR1 protein expression was assessed by immunohistochemistry. Growth inhibitory effects of FGFR1 inhibitor PD166866 and dominant negative recombinant FGFR adenoviral expression constructs (dnFGFR) on tumor cell lines were analyzed. Profiling of multiple FGFR transcripts detected comparable co-expression in most of human and canine sarcoma cell lines and canine tumor specimens. This indicates existence of closely related regulation mechanisms for FGFR expression in sarcomas of both species. FGFR1 with splice variant IIIc was consistently expressed with highest transcript levels. In 88% of the spontaneous tumor samples a heterogeneous FGFR1 protein expression was observed. Significant growth inhibition and cell death was seen after infection with dnFGFR1 in canine and human sarcoma cells, but not with dnFGFR3 and 4. PD166866 showed selective cytotoxicity with IC50 values between 12.1 and 26.4 μM. FGFR1 inhibition blocked ligand-induced tyrosine phosphorylation of ERK1/2 mitogen-activated protein kinase isoforms. This study emphasizes the important role FGFR1, especially splice variant IIIc, likely plays in sarcomas. Inhibitory small molecules could be of potential use for targeted therapy in aggressive sarcomas of both species.
Collapse
Affiliation(s)
- Nicole Schweiger
- Department for Companion Animals and Horses, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Marlene Hauck
- Department of Medicine I, Division of Cancer Research, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.,Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC
| | - Heinrich Steinhoff
- Department of Medicine I, Division of Cancer Research, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Sandra Sampl
- Department of Medicine I, Division of Cancer Research, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Martin Reifinger
- Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Ingrid Walter
- Vet Core Facility, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Theresa Kreilmeier
- Department for Companion Animals and Horses, University of Veterinary Medicine Vienna, Vienna, Austria.,Department of Medicine I, Division of Cancer Research, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Brigitte Marian
- Department of Medicine I, Division of Cancer Research, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Michael Grusch
- Department of Medicine I, Division of Cancer Research, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Walter Berger
- Department of Medicine I, Division of Cancer Research, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Klaus Holzmann
- Department of Medicine I, Division of Cancer Research, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Miriam Kleiter
- Department for Companion Animals and Horses, University of Veterinary Medicine Vienna, Vienna, Austria
| |
Collapse
|
35
|
Borad MJ, Champion MD, Egan JB, Liang WS, Fonseca R, Bryce AH, McCullough AE, Barrett MT, Hunt K, Patel MD, Young SW, Collins JM, Silva AC, Condjella RM, Block M, McWilliams RR, Lazaridis KN, Klee EW, Bible KC, Harris P, Oliver GR, Bhavsar JD, Nair AA, Middha S, Asmann Y, Kocher JP, Schahl K, Kipp BR, Barr Fritcher EG, Baker A, Aldrich J, Kurdoglu A, Izatt T, Christoforides A, Cherni I, Nasser S, Reiman R, Phillips L, McDonald J, Adkins J, Mastrian SD, Placek P, Watanabe AT, LoBello J, Han H, Von Hoff D, Craig DW, Stewart AK, Carpten JD. Integrated genomic characterization reveals novel, therapeutically relevant drug targets in FGFR and EGFR pathways in sporadic intrahepatic cholangiocarcinoma. PLoS Genet 2014; 10:e1004135. [PMID: 24550739 PMCID: PMC3923676 DOI: 10.1371/journal.pgen.1004135] [Citation(s) in RCA: 261] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Accepted: 12/06/2013] [Indexed: 12/18/2022] Open
Abstract
Advanced cholangiocarcinoma continues to harbor a difficult prognosis and therapeutic options have been limited. During the course of a clinical trial of whole genomic sequencing seeking druggable targets, we examined six patients with advanced cholangiocarcinoma. Integrated genome-wide and whole transcriptome sequence analyses were performed on tumors from six patients with advanced, sporadic intrahepatic cholangiocarcinoma (SIC) to identify potential therapeutically actionable events. Among the somatic events captured in our analysis, we uncovered two novel therapeutically relevant genomic contexts that when acted upon, resulted in preliminary evidence of anti-tumor activity. Genome-wide structural analysis of sequence data revealed recurrent translocation events involving the FGFR2 locus in three of six assessed patients. These observations and supporting evidence triggered the use of FGFR inhibitors in these patients. In one example, preliminary anti-tumor activity of pazopanib (in vitro FGFR2 IC50≈350 nM) was noted in a patient with an FGFR2-TACC3 fusion. After progression on pazopanib, the same patient also had stable disease on ponatinib, a pan-FGFR inhibitor (in vitro, FGFR2 IC50≈8 nM). In an independent non-FGFR2 translocation patient, exome and transcriptome analysis revealed an allele specific somatic nonsense mutation (E384X) in ERRFI1, a direct negative regulator of EGFR activation. Rapid and robust disease regression was noted in this ERRFI1 inactivated tumor when treated with erlotinib, an EGFR kinase inhibitor. FGFR2 fusions and ERRFI mutations may represent novel targets in sporadic intrahepatic cholangiocarcinoma and trials should be characterized in larger cohorts of patients with these aberrations. Cholangiocarcinoma is a cancer that affects the bile ducts. Unfortunately, many patients diagnosed with cholangiocarcinoma have disease that cannot be treated with surgery or has spread to other parts of the body, thus severely limiting treatment options. New advances in drug treatment have enabled treatment of these cancers with “targeted therapy” that exploits an error in the normal functioning of a tumor cell, compared to other cells in the body, thus allowing only tumor cells to be killed by the drug. We sought to identify changes in the genetic material of cholangiocarcinoma patient tumors in order to identify potential errors in cellular functioning by utilizing cutting edge genetic sequencing technology. We identified three patient tumors possessing an FGFR2 gene that was aberrantly fused to another gene. Two of these patients were able to receive targeted therapy for FGFR2 with resulting tumor shrinkage. A fourth tumor contained an error in a gene that controls a very important cellular mechanism in cancer, termed epidermal growth factor pathway (EGFR). This patient received therapy targeting this mechanism and also demonstrated response to treatment. Thus, we have been able to utilize cutting edge technology with targeted drug treatment to personalize medical treatment for cancer in cholangiocarcinoma patients.
Collapse
Affiliation(s)
- Mitesh J. Borad
- Division of Hematology/Oncology Mayo Clinic, Scottsdale, Arizona, United States of America
- Mayo Clinic Cancer Center, Scottsdale, Arizona, United States of America
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
- * E-mail: (MJB); (JDC)
| | - Mia D. Champion
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
- Department of Biomedical Statistics and Informatics, Mayo Clinic, Scottsdale, Arizona, United States of America
| | - Jan B. Egan
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Winnie S. Liang
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Rafael Fonseca
- Division of Hematology/Oncology Mayo Clinic, Scottsdale, Arizona, United States of America
- Mayo Clinic Cancer Center, Scottsdale, Arizona, United States of America
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Alan H. Bryce
- Division of Hematology/Oncology Mayo Clinic, Scottsdale, Arizona, United States of America
- Mayo Clinic Cancer Center, Scottsdale, Arizona, United States of America
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Ann E. McCullough
- Department of Pathology, Mayo Clinic, Scottsdale, Arizona, United States of America
| | - Michael T. Barrett
- Mayo Clinic Cancer Center, Scottsdale, Arizona, United States of America
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Katherine Hunt
- Division of Hematology/Oncology Mayo Clinic, Scottsdale, Arizona, United States of America
| | - Maitray D. Patel
- Department of Radiology, Mayo Clinic, Scottsdale, Arizona, United States of America
| | - Scott W. Young
- Department of Radiology, Mayo Clinic, Scottsdale, Arizona, United States of America
| | - Joseph M. Collins
- Department of Radiology, Mayo Clinic, Scottsdale, Arizona, United States of America
| | - Alvin C. Silva
- Department of Radiology, Mayo Clinic, Scottsdale, Arizona, United States of America
| | | | - Matthew Block
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
- Mayo Clinic Cancer Center, Rochester, Minnesota, United States of America
| | - Robert R. McWilliams
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
- Mayo Clinic Cancer Center, Rochester, Minnesota, United States of America
| | | | - Eric W. Klee
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
- Department of Biomedical Statistics and Informatics, Mayo Clinic, Scottsdale, Arizona, United States of America
| | - Keith C. Bible
- Mayo Clinic Cancer Center, Rochester, Minnesota, United States of America
| | - Pamela Harris
- Investigational Drug Branch, National Cancer Institute, Rockville, Maryland, United States of America
| | - Gavin R. Oliver
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
- Department of Biomedical Statistics and Informatics, Mayo Clinic, Scottsdale, Arizona, United States of America
| | - Jaysheel D. Bhavsar
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
- Department of Biomedical Statistics and Informatics, Mayo Clinic, Scottsdale, Arizona, United States of America
| | - Asha A. Nair
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
- Department of Biomedical Statistics and Informatics, Mayo Clinic, Scottsdale, Arizona, United States of America
| | - Sumit Middha
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
- Department of Biomedical Statistics and Informatics, Mayo Clinic, Scottsdale, Arizona, United States of America
| | - Yan Asmann
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
- Department of Biomedical Statistics and Informatics, Mayo Clinic, Scottsdale, Arizona, United States of America
| | - Jean-Pierre Kocher
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
- Department of Biomedical Statistics and Informatics, Mayo Clinic, Scottsdale, Arizona, United States of America
| | - Kimberly Schahl
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Benjamin R. Kipp
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Emily G. Barr Fritcher
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Angela Baker
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Jessica Aldrich
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Ahmet Kurdoglu
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Tyler Izatt
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Alexis Christoforides
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Irene Cherni
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Sara Nasser
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Rebecca Reiman
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Lori Phillips
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Jackie McDonald
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Jonathan Adkins
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Stephen D. Mastrian
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Pamela Placek
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Aprill T. Watanabe
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Janine LoBello
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Haiyong Han
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - Daniel Von Hoff
- Mayo Clinic Cancer Center, Scottsdale, Arizona, United States of America
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - David W. Craig
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - A. Keith Stewart
- Division of Hematology/Oncology Mayo Clinic, Scottsdale, Arizona, United States of America
- Mayo Clinic Cancer Center, Scottsdale, Arizona, United States of America
- Center for Individualized Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
| | - John D. Carpten
- Translational Genomics Research Institute, Phoenix, Arizona, United States of America
- * E-mail: (MJB); (JDC)
| |
Collapse
|
36
|
Salazar L, Kashiwada T, Krejci P, Meyer AN, Casale M, Hallowell M, Wilcox WR, Donoghue DJ, Thompson LM. Fibroblast growth factor receptor 3 interacts with and activates TGFβ-activated kinase 1 tyrosine phosphorylation and NFκB signaling in multiple myeloma and bladder cancer. PLoS One 2014; 9:e86470. [PMID: 24466111 PMCID: PMC3900522 DOI: 10.1371/journal.pone.0086470] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 12/09/2013] [Indexed: 12/31/2022] Open
Abstract
Cancer is a major public health problem worldwide. In the United States alone, 1 in 4 deaths is due to cancer and for 2013 a total of 1,660,290 new cancer cases and 580,350 cancer-related deaths are projected. Comprehensive profiling of multiple cancer genomes has revealed a highly complex genetic landscape in which a large number of altered genes, varying from tumor to tumor, impact core biological pathways and processes. This has implications for therapeutic targeting of signaling networks in the development of treatments for specific cancers. The NFκB transcription factor is constitutively active in a number of hematologic and solid tumors, and many signaling pathways implicated in cancer are likely connected to NFκB activation. A critical mediator of NFκB activity is TGFβ-activated kinase 1 (TAK1). Here, we identify TAK1 as a novel interacting protein and target of fibroblast growth factor receptor 3 (FGFR3) tyrosine kinase activity. We further demonstrate that activating mutations in FGFR3 associated with both multiple myeloma and bladder cancer can modulate expression of genes that regulate NFκB signaling, and promote both NFκB transcriptional activity and cell adhesion in a manner dependent on TAK1 expression in both cancer cell types. Our findings suggest TAK1 as a potential therapeutic target for FGFR3-associated cancers, and other malignancies in which TAK1 contributes to constitutive NFκB activation.
Collapse
MESH Headings
- Apoptosis
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Blotting, Western
- Cell Adhesion
- Cell Proliferation
- Gene Expression Profiling
- Humans
- Immunoprecipitation
- MAP Kinase Kinase Kinases/genetics
- MAP Kinase Kinase Kinases/metabolism
- Multiple Myeloma/genetics
- Multiple Myeloma/metabolism
- Multiple Myeloma/pathology
- NF-kappa B/genetics
- NF-kappa B/metabolism
- Oligonucleotide Array Sequence Analysis
- Peptide Fragments
- Phosphorylation
- RNA, Messenger/genetics
- Real-Time Polymerase Chain Reaction
- Receptor, Fibroblast Growth Factor, Type 3/genetics
- Receptor, Fibroblast Growth Factor, Type 3/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Signal Transduction
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
- Transforming Growth Factor beta/genetics
- Transforming Growth Factor beta/metabolism
- Tumor Cells, Cultured
- Two-Hybrid System Techniques
- Tyrosine/metabolism
- Urinary Bladder Neoplasms/genetics
- Urinary Bladder Neoplasms/metabolism
- Urinary Bladder Neoplasms/pathology
Collapse
Affiliation(s)
- Lisa Salazar
- Department of Psychiatry and Human Behavior, University of California Irvine, Irvine, California, United States of America
| | - Tamara Kashiwada
- Department of Biological Chemistry, University of California Irvine, Irvine, California, United States of America
| | - Pavel Krejci
- Medical Genetics Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
- Institute of Experimental Biology, Masaryk University and Department of Cytokinetics, Institute of Biophysics AS CR, v.v.i., Brno, Czech Republic
- Department of Pediatrics, UCLA School of Medicine, Los Angeles, California, United States of America
| | - April N. Meyer
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, United States of America
| | - Malcolm Casale
- Department of Neurobiology and Behavior, University of California Irvine, Irvine, California, United States of America
| | - Matthew Hallowell
- Department of Psychiatry and Human Behavior, University of California Irvine, Irvine, California, United States of America
| | - William R. Wilcox
- Medical Genetics Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
- Department of Pediatrics, UCLA School of Medicine, Los Angeles, California, United States of America
| | - Daniel J. Donoghue
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, United States of America
- Moores Cancer Center, University of California San Diego, La Jolla, California, United States of America
| | - Leslie Michels Thompson
- Department of Psychiatry and Human Behavior, University of California Irvine, Irvine, California, United States of America
- Department of Biological Chemistry, University of California Irvine, Irvine, California, United States of America
- Department of Neurobiology and Behavior, University of California Irvine, Irvine, California, United States of America
- Chao Family Comprehensive Cancer Center, University of California Irvine, Irvine, California, United States of America
| |
Collapse
|
37
|
Meyer AN, Drafahl KA, McAndrew CW, Gilda JE, Gallo LH, Haas M, Brill LM, Donoghue DJ. Tyrosine phosphorylation allows integration of multiple signaling inputs by IKKβ. PLoS One 2014; 8:e84497. [PMID: 24386391 PMCID: PMC3873999 DOI: 10.1371/journal.pone.0084497] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Accepted: 11/14/2013] [Indexed: 02/06/2023] Open
Abstract
Signaling regulated by NFκB and related transcription factors is centrally important to many inflammatory and autoimmune diseases, cancer, and stress responses. The kinase that directly regulates the canonical NFκB transcriptional pathway, Inhibitor of κB kinase β (IKKβ), undergoes activation by Ser phosphorylation mediated by NIK or TAK1 in response to inflammatory signals. Using titanium dioxide-based phosphopeptide enrichment (TiO2)-liquid chromatography (LC)-high mass accuracy tandem mass spectrometry (MS/MS), we analyzed IKKβ phosphorylation in human HEK293 cells expressing IKKβ and FGFR2, a Receptor tyrosine kinase (RTK) essential for embryonic differentiation and dysregulated in several cancers. We attained unusually high coverage of IKKβ, identifying an abundant site of Tyr phosphorylation at Tyr169 within the Activation Loop. The phosphomimic at this site confers a level of kinase activation and NFκB nuclear localization exceeding the iconic mutant S177E/S181E, demonstrating that RTK-mediated Tyr phosphorylation of IKKβ has the potential to directly regulate NFκB transcriptional activation.
Collapse
Affiliation(s)
- April N. Meyer
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, United States of America
| | - Kristine A. Drafahl
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, United States of America
| | - Christopher W. McAndrew
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, United States of America
| | - Jennifer E. Gilda
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, United States of America
| | - Leandro H. Gallo
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, United States of America
| | - Martin Haas
- Moores UCSD Cancer Center, University of California San Diego, La Jolla, California, United States of America
| | - Laurence M. Brill
- Sanford-Burnham Medical Research Institute, La Jolla, California, United States of America
| | - Daniel J. Donoghue
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, United States of America
- Moores UCSD Cancer Center, University of California San Diego, La Jolla, California, United States of America
- *
| |
Collapse
|
38
|
|
39
|
Redler A, Di Rocco G, Giannotti D, Frezzotti F, Bernieri MG, Ceccarelli S, D’Amici S, Vescarelli E, Mitterhofer AP, Angeloni A, Marchese C. Fibroblast growth factor receptor-2 expression in thyroid tumor progression: potential diagnostic application. PLoS One 2013; 8:e72224. [PMID: 23977259 PMCID: PMC3747152 DOI: 10.1371/journal.pone.0072224] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Accepted: 07/08/2013] [Indexed: 11/19/2022] Open
Abstract
Fibroblast growth factor receptor-2 (FGFR-2) plays an important role in tumorigenesis. In thyroid cancer it has been observed a FGFR-2 down-modulation, but the role of this receptor has not been yet clarified. Therefore, we decided to examine the expression of both FGFR-2 isoform, FGFR-2-IIIb and FGFR-2-IIIc, in different histological thyroid variants such as hyperplasia, follicular adenoma and papillary carcinoma. Immunohistochemistry and quantitative Real-Time PCR analyses were performed on samples of hyperplasia, follicular adenoma and papillary carcinoma, compared with normal thyroid tissue. Thyroid hyperplasia did not show statistically significant reduction in FGFR-2 protein and mRNA levels. Interestingly, in both follicular adenoma and papillary carcinoma samples we observed a strongly reduced expression of both FGFR-2 isoforms. We speculate that FGFR-2 down-modulation might be an early event in thyroid carcinogenesis. Furthermore, we suggest the potential use of FGFR-2 as an early marker for thyroid cancer diagnosis.
Collapse
MESH Headings
- Adenoma/diagnosis
- Adenoma/genetics
- Adenoma/metabolism
- Adenoma/pathology
- Adult
- Aged
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Carcinogenesis/genetics
- Carcinogenesis/metabolism
- Carcinogenesis/pathology
- Carcinoma, Papillary/diagnosis
- Carcinoma, Papillary/genetics
- Carcinoma, Papillary/metabolism
- Carcinoma, Papillary/pathology
- Female
- Gene Expression Regulation, Neoplastic
- Humans
- Hyperplasia/diagnosis
- Hyperplasia/genetics
- Hyperplasia/metabolism
- Hyperplasia/pathology
- Male
- Middle Aged
- Protein Isoforms/genetics
- Protein Isoforms/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptor, Fibroblast Growth Factor, Type 2/genetics
- Receptor, Fibroblast Growth Factor, Type 2/metabolism
- Signal Transduction
- Thyroid Gland/metabolism
- Thyroid Gland/pathology
- Thyroid Neoplasms/diagnosis
- Thyroid Neoplasms/genetics
- Thyroid Neoplasms/metabolism
- Thyroid Neoplasms/pathology
Collapse
Affiliation(s)
- Adriano Redler
- Department of Surgical Sciences, Sapienza University of Rome, Rome, Italy
| | - Giorgio Di Rocco
- Department of Surgical Sciences, Sapienza University of Rome, Rome, Italy
| | - Domenico Giannotti
- Department of Surgical Sciences, Sapienza University of Rome, Rome, Italy
| | | | - Maria Giulia Bernieri
- Department of Radiological Sciences, Oncology and Anatomical Pathology, Sapienza University of Rome, Rome, Italy
| | - Simona Ceccarelli
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
- * E-mail:
| | - Sirio D’Amici
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Enrica Vescarelli
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | | | - Antonio Angeloni
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Cinzia Marchese
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| |
Collapse
|
40
|
Zhao Q, Caballero OL, Davis ID, Jonasch E, Tamboli P, Yung WKA, Weinstein JN, Strausberg RL, Yao J. Tumor-specific isoform switch of the fibroblast growth factor receptor 2 underlies the mesenchymal and malignant phenotypes of clear cell renal cell carcinomas. Clin Cancer Res 2013; 19:2460-72. [PMID: 23444225 DOI: 10.1158/1078-0432.ccr-12-3708] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE We aim to identify tumor-specific alternative splicing events having potential applications in the early detection, diagnosis, prognosis, and therapy for cancers. EXPERIMENTAL DESIGN We analyzed RNA-seq data on 470 clear cell renal cell carcinomas (ccRCC) and 68 kidney tissues to identify tumor-specific alternative splicing events. We further focused on the fibroblast growth factor receptor 2 (FGFR2) isoform switch and characterized ccRCCs expressing different FGFR2 isoforms by integrated analyses using genomic data from multiple platforms and tumor types. RESULTS We identified 113 top candidate alternatively spliced genes in ccRCC. Prominently, the FGFR2 gene transcript switched from the normal IIIb isoform ("epithelial") to IIIc isoform ("mesenchymal") in nearly 90% of ccRCCs. This switch is kidney specific as it was rarely observed in other cancers. The FGFR2-IIIb ccRCCs show a transcriptome and methylome resembling those from normal kidney, whereas FGFR2-IIIc ccRCCs possess elevated hypoxic and mesenchymal expression signatures. Clinically, FGFR2-IIIb ccRCCs are smaller in size, of lower tumor grade, and associated with longer patient survival. Gene set enrichment and DNA copy number analyses indicated that FGFR2-IIIb ccRCCs are closely associated with renal oncocytomas and chromophobe RCCs (chRCC). A reexamination of tumor histology by pathologists identified FGFR2-IIIb tumors as chRCCs and clear cell papillary RCCs (ccpRCC). CONCLUSIONS FGFR2 IIIb RCCs represent misdiagnosed ccRCC cases, suggesting FGFR2 isoform testing can be used in the diagnosis of RCC subtypes. The finding of a prevalent isoform switch of FGFR2 in a tissue-specific manner holds promise for the future development of FGFR2-IIIc as a distinct early detection biomarker and therapeutic target for ccRCC.
Collapse
Affiliation(s)
- Qi Zhao
- Ludwig Collaborative Laboratory, Department of Neurosurgery, Johns Hopkins University, Baltimore, Maryland, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
A Decade of FGF Receptor Research in Bladder Cancer: Past, Present, and Future Challenges. Adv Urol 2012; 2012:429213. [PMID: 22899908 PMCID: PMC3415141 DOI: 10.1155/2012/429213] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 06/17/2012] [Indexed: 01/04/2023] Open
Abstract
Fibroblast growth factors (FGFs) orchestrate a variety of cellular functions by binding to their transmembrane tyrosine-kinase receptors (FGFRs) and activating downstream signalling pathways, including RAS/MAPK, PLCγ1, PI3K, and STATs. In the last ten years, it has become clear that FGF signalling is altered in a high proportion of bladder tumours. Activating mutations and/or overexpression of FGFR3 are common in urothelial tumours with low malignant potential and low-stage and -grade urothelial carcinomas (UCs) and are associated with a lower risk of progression and better survival in some subgroups. FGFR1 is not mutated in UC, but overexpression is frequent in all grades and stages and recent data indicate a role in urothelial epithelial-mesenchymal transition. In vitro and in vivo studies have shown that FGFR inhibition has cytotoxic and/or cytostatic effects in FGFR-dependent bladder cancer cells and FGFR-targeted agents are currently being investigated in clinical studies for the treatment of UC. Urine-based tests detecting common FGFR3 mutations are also under development for surveillance of low-grade and -stage tumours and for general population screening. Overall, FGFRs hold promise as therapeutic targets, diagnostic and prognostic markers, and screening tools for early detection and clinical management of UC.
Collapse
|
42
|
Ceccarelli S, Romano F, Angeloni A, Marchese C. Potential dual role of KGF/KGFR as a target option in novel therapeutic strategies for the treatment of cancers and mucosal damages. Expert Opin Ther Targets 2012; 16:377-93. [PMID: 22443411 DOI: 10.1517/14728222.2012.671813] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Keratinocyte growth factor (KGF) and its receptor KGFR play a pivotal role in regulating cell proliferation, migration, differentiation and survival, in response to injury and tissue repair. Altered expression of this pathway in cancer opened the way to the development of targeted therapy to achieve KGFR inhibition. Nevertheless, KGF administration has been demonstrated to ameliorate oral mucositis resulting from chemoradiotherapy, besides protecting epithelial cells against radiation-induced damage. AREAS COVERED This review focuses on the potential therapeutic interest of KGF/KGFR in two different areas: selective inhibition of KGFR signaling for the treatment of cancers characterized by upregulation of this pathway and administration of KGF to protect epithelial cells from induced damage. The review presents an overview of therapeutic strategies in both directions. EXPERT OPINION KGF/KGFR signaling can contribute to enhancing the malignant potential of epithelial cells and to promoting tumorigenesis. On the other hand, the therapeutic use of KGF in cancer patients provides epithelial protection, reducing chemotherapy side effects. FGFRs have become attractive antitumor targets and various inhibitors have been used to contrast tumor cell growth. The identification of KGFR-specific molecules might represent a promising therapeutic strategy that could increase the window of available agents and treatment methods.
Collapse
Affiliation(s)
- Simona Ceccarelli
- Sapienza University of Rome, Department of Experimental Medicine, Roma, Italy
| | | | | | | |
Collapse
|
43
|
Toriseva M, Ala-aho R, Peltonen S, Peltonen J, Grénman R, Kähäri VM. Keratinocyte growth factor induces gene expression signature associated with suppression of malignant phenotype of cutaneous squamous carcinoma cells. PLoS One 2012; 7:e33041. [PMID: 22427941 PMCID: PMC3299721 DOI: 10.1371/journal.pone.0033041] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Accepted: 02/09/2012] [Indexed: 12/26/2022] Open
Abstract
Keratinocyte growth factor (KGF, fibroblast growth factor-7) is a fibroblast-derived mitogen, which stimulates proliferation of epithelial cells. The expression of KGF by dermal fibroblasts is induced following injury and it promotes wound repair. However, the role of KGF in cutaneous carcinogenesis and cancer progression is not known. We have examined the role of KGF in progression of squamous cell carcinoma (SCC) of the skin. The expression of KGF receptor (KGFR) mRNA was lower in cutaneous SCCs (n = 6) than in normal skin samples (n = 6). Expression of KGFR mRNA was detected in 6 out of 8 cutaneous SCC cell lines and the levels were downregulated by 24-h treatment with KGF. KGF did not stimulate SCC cell proliferation, but it reduced invasion of SCC cells through collagen. Gene expression profiling of three cutaneous SCC cell lines treated with KGF for 24 h revealed a specific gene expression signature characterized by upregulation of a set of genes specifically downregulated in SCC cells compared to normal epidermal keratinocytes, including genes with tumor suppressing properties (SPRY4, DUSP4, DUSP6, LRIG1, PHLDA1). KGF also induced downregulation of a set of genes specifically upregulated in SCC cells compared to normal keratinocytes, including genes associated with tumor progression (MMP13, MATN2, CXCL10, and IGFBP3). Downregulation of MMP-13 and KGFR expression in SCC cells and HaCaT cells was mediated via ERK1/2. Activation of ERK1/2 in HaCaT cells and tumorigenic Ha-ras-transformed HaCaT cells resulted in downregulation of MMP-13 and KGFR expression. These results provide evidence, that KGF does not promote progression of cutaneous SCC, but rather suppresses the malignant phenotype of cutaneous SCC cells by regulating the expression of several genes differentially expressed in SCC cells, as compared to normal keratinocytes.
Collapse
Affiliation(s)
- Mervi Toriseva
- Department of Dermatology, University of Turku, Turku University Hospital, Turku, Finland
- MediCity Research Laboratory, University of Turku, Turku, Finland
- Turku Graduate School of Biomedical Sciences, Turku, Finland
| | - Risto Ala-aho
- Department of Dermatology, University of Turku, Turku University Hospital, Turku, Finland
- MediCity Research Laboratory, University of Turku, Turku, Finland
| | - Sirkku Peltonen
- Department of Dermatology, University of Turku, Turku University Hospital, Turku, Finland
| | - Juha Peltonen
- Department of Cell Biology and Anatomy, University of Turku, Turku, Finland
| | - Reidar Grénman
- Department of Otorhinolaryngology-Head and Neck Surgery, Turku University Hospital, Turku, Finland
| | - Veli-Matti Kähäri
- Department of Dermatology, University of Turku, Turku University Hospital, Turku, Finland
- MediCity Research Laboratory, University of Turku, Turku, Finland
- * E-mail:
| |
Collapse
|
44
|
Guo M, Liu W, Serra S, Asa SL, Ezzat S. FGFR2 isoforms support epithelial-stromal interactions in thyroid cancer progression. Cancer Res 2012; 72:2017-27. [PMID: 22345151 DOI: 10.1158/0008-5472.can-11-3985] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Alternate splicing yields two distinct isoforms of the fibroblast growth factor (FGF) receptor FGFR2-IIIb and FGFR2-IIIc varying their extracellular structure in human thyroid cancer, in which FGFR expression is commonly dysregulated. In this study, we characterized the function of these variants in modulating thyroid cancer behavior. Enforced expression of either FGFR2-IIIb or FGFR2-IIIc in thyroid epithelial cancer cells reduced expression of fibronectin, MAGE-A3 and MMP9, while increasing p21 and enhancing Rb dephosphorylation. Consistent with these tumor-suppressive properties, FGFR2-IIIb and FGFR2-IIIc each diminished invasive behavior in vitro and reduced tumor growth and metastasis in vivo. Notably, these effects contrasted with those produced by expression of these FGFR isoforms in fibroblasts, in which they both stimulated cell growth. Moreover, in xenograft tumors generated by coimplantation of epithelial and fibroblast cells expressing that same isoform, there was no significant effect on tumor progression. Conversely, FGFR2-IIIb expression in epithelial cells yielded higher FGF4/FGF7 expression that, in the presence of FGFR2-IIIc-expressing fibroblasts, enhanced tumor progression. Together, our findings highlight the importance of cellular context in assigning growth properties to growth factor receptor isoforms. More specifically, they show how alternative splicing of FGFR2 yields heteroisoforms critical to the growth-promoting actions of FGFs that exert distinct epithelial-stromal effects in thyroid cancer.
Collapse
Affiliation(s)
- Miao Guo
- The Ontario Cancer Institute, Department of Medicine, University Health Network, Toronto, Ontario, Canada
| | | | | | | | | |
Collapse
|
45
|
Ahmad I, Iwata T, Leung HY. Mechanisms of FGFR-mediated carcinogenesis. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2012; 1823:850-60. [PMID: 22273505 DOI: 10.1016/j.bbamcr.2012.01.004] [Citation(s) in RCA: 144] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 01/09/2012] [Accepted: 01/10/2012] [Indexed: 12/11/2022]
Abstract
In this review, the evidence for a role of fibroblast growth factor receptor (FGFR) mediated signalling in carcinogenesis are considered and relevant underlying mechanisms highlighted. FGF signalling mediated by FGFR follows a classic receptor tyrosine kinase signalling pathway and its deregulation at various points of its cascade could result in malignancy. Here we review the accumulating reports that revealed the association of FGF/FGFRs to various types of cancer at a genetic level, along with in vitro and in vivo evidences available so far, which indicates the functional involvement of FGF signalling in tumour formation and progression. An increasing number of drugs against the FGF pathways is currently in clinical testing. We will discuss the strategies for future FGF research in cancer and translational approaches.
Collapse
Affiliation(s)
- Imran Ahmad
- Beatson Institute for Cancer Research, Bearsden, Glasgow G61 1BD, UK
| | | | | |
Collapse
|
46
|
Alternative Splicing of Fibroblast Growth Factor Receptor IgIII Loops in Cancer. J Nucleic Acids 2011; 2012:950508. [PMID: 22203889 PMCID: PMC3238399 DOI: 10.1155/2012/950508] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Revised: 07/27/2011] [Accepted: 08/07/2011] [Indexed: 02/06/2023] Open
Abstract
Alternative splicing
of the IgIII loop of fibroblast growth factor
receptors (FGFRs) 1–3 produces b- and
c-variants of the receptors with distinctly
different biological impact based on their
distinct ligand-binding spectrum. Tissue-specific expression of these splice variants
regulates interactions in embryonic development,
tissue maintenance and repair, and cancer.
Alterations in FGFR2 splicing are involved in
epithelial mesenchymal transition that produces
invasive, metastatic features during tumor
progression.
Recent research has elucidated regulatory factors that determine
the splice choice both on the level of exogenous signaling events
and on the RNA-protein interaction level. Moreover, methodology
has been developed that will enable the in depth analysis of
splicing events during tumorigenesis and provide further insight on
the role of FGFR 1–3 IIIb and IIIc in the pathophysiology of
various malignancies. This paper aims to summarize expression
patterns in various tumor types and outlines possibilities for
further analysis and application.
Collapse
|
47
|
Sun S, Jiang Y, Zhang G, Song H, Zhang X, Zhang Y, Liang X, Sun Q, Pang D. Increased expression of fibroblastic growth factor receptor 2 is correlated with poor prognosis in patients with breast cancer. J Surg Oncol 2011; 105:773-9. [PMID: 22006548 DOI: 10.1002/jso.22120] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Accepted: 09/21/2011] [Indexed: 02/02/2023]
Abstract
BACKGROUND AND OBJECTIVES Although there is growing evidence supporting the hypothesis that fibroblast growth factor receptor 2 (FGFR2) is one of the few candidate genes linked with breast cancer susceptibility, the precise role of FGFR2 protein expression in breast cancer is still unknown. Our study examines FGFR2 protein expression in breast cancer and determines its associations with clinicopathological features and survival. METHODS Specimens from 125 invasive ductal carcinoma grade 2 (IDC2) breast cancer patients were investigated by immunohistochemistry for FGFR2 protein expression. Associations between the expression of FGFR2 and various clinicopathological features as well as survival status were studied. RESULT Cytoplasmic and nuclear FGFR2 were expressed in 64.8% and 56.8% of breast cancer patients, respectively. Cytoplasmic FGFR2 expression was significantly associated with tumor size and TNM stage. Furthermore, patients with high expression levels of cytoplasmic and nuclear FGFR2 showed much lower overall survival (OS) and disease-free survival (DFS) rates than those patients with low FGFR2 expression. Cytoplasmic FGFR2 expression and lymph node metastasis were independent prognostic factors for both DFS and OS by multivariate analysis. CONCLUSIONS High FGFR2 expression is correlated with poor OS and DFS in breast cancer patients. It could be a biomarker for poor prognosis.
Collapse
Affiliation(s)
- Shanshan Sun
- Department of Breast Surgery, The Third Affiliated Hospital of Harbin Medical University, Harbin, China
| | | | | | | | | | | | | | | | | |
Collapse
|
48
|
|
49
|
The receptor tyrosine kinase FGFR2b/KGFR controls early differentiation of human keratinocytes. PLoS One 2011; 6:e24194. [PMID: 21957444 PMCID: PMC3177842 DOI: 10.1371/journal.pone.0024194] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Accepted: 08/04/2011] [Indexed: 12/23/2022] Open
Abstract
The FGFRs trigger divergent responses, such as proliferation and differentiation, and the cell type as well as the context-dependent signaling are crucial for the functional outcome. The FGFR2b/KGFR is expressed exclusively on epithelial cells and plays a key role in skin homeostasis. Here we analyzed in vitro the role of KGFR in the early differentiation of keratinocytes modulating its expression by KGFR cDNA transient transfection or KGFR siRNA microinjection and inducing a synchronous wave of differentiation in pre-confluent cells. Immunofluorescence, biochemical and molecular approaches demonstrated that KGFR overexpression increased the early differentiation marker keratin 1 at both transcriptional and translational levels, while receptor depletion reduced it. Ligand-dependent receptor activation and signaling were required for this differentiative effect. Overexpression of kinase negative KGFR mutant or Tyr769 KGFR signaling mutant, which is not able to recruit and activate PLC-γ, showed that the receptor kinase activity, but not its PLCγ-mediated signaling, is required for differentiation. Reduction of K1 expression, obtained by AKT inhibition, demonstrated that the PI3K/Akt signaling pathway is involved in the control of KGFR-mediated keratinocyte differentiation. This in vitro experimental model indicates that FGFR2b/KGFR expression represents a key event regulating keratinocyte early differentiation during the switch from undifferentiated to differentiating cells.
Collapse
|
50
|
Yao D, Dai C, Peng S. Mechanism of the mesenchymal-epithelial transition and its relationship with metastatic tumor formation. Mol Cancer Res 2011; 9:1608-20. [PMID: 21840933 DOI: 10.1158/1541-7786.mcr-10-0568] [Citation(s) in RCA: 307] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Cancer metastasis consists of a sequential series of events, and the epithelial-mesenchymal transition (EMT) and mesenchymal-epithelial transition (MET) are recognized as critical events for metastasis of carcinomas. A current area of focus is the histopathological similarity between primary and metastatic tumors, and MET at sites of metastases has been postulated to be part of the process of metastatic tumor formation. Here, we summarize accumulating evidence from experimental studies that directly supports the role of MET in cancer metastasis, and we analyze the main mechanisms that regulate MET or reverse EMT in carcinomas. Given the critical role of MET in metastatic tumor formation, the potential to effectively target the MET process at sites of metastasis offers new hope for inhibiting metastatic tumor formation.
Collapse
Affiliation(s)
- Dianbo Yao
- Department of Hepatobiliary and Splenic Surgery, Shengjing Hospital of China Medical University, Heping District, Shenyang 110004, Liaoning Province, China
| | | | | |
Collapse
|