801
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Assi T, Rassy E, Nassereddine H, Farhat F, Karak FE, Kattan J, Ghosn M. TRK inhibition in soft tissue sarcomas: A comprehensive review. Semin Oncol 2020; 47:73-84. [DOI: 10.1053/j.seminoncol.2020.02.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 02/27/2020] [Accepted: 02/27/2020] [Indexed: 12/30/2022]
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802
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Singleton TA, Bdair H, Bailey JJ, Choi S, Aliaga A, Rosa-Neto P, Schirrmacher R, Bernard-Gauthier V, Kostikov A. Efficient radiosynthesis and preclinical evaluation of [ 18 F]FOMPyD as a positron emission tomography tracer candidate for TrkB/C receptor imaging. J Labelled Comp Radiopharm 2020; 63:144-150. [PMID: 31919878 DOI: 10.1002/jlcr.3827] [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] [Received: 10/08/2019] [Revised: 12/05/2019] [Accepted: 01/07/2020] [Indexed: 01/20/2023]
Abstract
Herein we report an efficient radiolabeling of a 18 F-fluorinated derivative of dual inhibitor GW2580, with its subsequent evaluation as a positron emission tomography (PET) tracer candidate for imaging of two neuroreceptor targets implicated in the pathophysiology of neurodegeneration: tropomyosin receptor kinases (TrkB/C) and colony stimulating factor receptor (CSF-1R). [18 F]FOMPyD was synthesized from a boronic acid pinacolate precursor via copper-mediated 18 F-fluorination concerted with thermal deprotection of the four Boc groups on a diaminopyrimidine moiety in an 8.7±2.8% radiochemical yield, a radiochemical purity >99%, and an effective molar activity of 187±93 GBq/μmol. [18 F]FOMPyD showed moderate brain permeability in wild-type rats (SUVmax = 0.75) and a slow washout rate. The brain uptake was partially reduced (ΔAUC40-90 = 11.6%) by administration of the nonradioactive FOMPyD (up to 30 μg/kg). In autoradiography, [18 F]FOMPyD exhibits ubiquitous distribution in rat and human brain tissues with relatively high nonspecific binding revealed by self-blocking experiment. The binding was blocked by TrkB/C inhibitors, but not with a CSF-1R inhibitor, suggesting selective binding to the former receptor. Although an unfavorable pharmacokinetic profile will likely preclude application of [18 F]FOMPyD as a PET tracer for brain imaging, the concomitant one-pot copper-mediated 18 F-fluorination/Boc-deprotection is a practical technique for the automated radiosynthesis of acid-sensitive PET tracers.
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Affiliation(s)
- Thomas A Singleton
- McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Quebec, Canada
| | - Hussein Bdair
- McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Quebec, Canada.,Department of Neurology and Neurosurgery, McGill University, Quebec, Canada
| | - Justin J Bailey
- Department of Oncology, Division of Oncological Imaging, University of Alberta, Edmonton, Alberta, Canada
| | - Sangho Choi
- Department of Oncology, Division of Oncological Imaging, University of Alberta, Edmonton, Alberta, Canada
| | - Arturo Aliaga
- Translational Neuroimaging Laboratory, McGill Centre for Studies in Aging, Douglas Mental Health University Institute, Quebec, Canada
| | - Pedro Rosa-Neto
- McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Quebec, Canada.,Translational Neuroimaging Laboratory, McGill Centre for Studies in Aging, Douglas Mental Health University Institute, Quebec, Canada.,Department of Neurology and Neurosurgery, McGill University, Quebec, Canada
| | - Ralf Schirrmacher
- Department of Oncology, Division of Oncological Imaging, University of Alberta, Edmonton, Alberta, Canada
| | - Vadim Bernard-Gauthier
- Department of Oncology, Division of Oncological Imaging, University of Alberta, Edmonton, Alberta, Canada
| | - Alexey Kostikov
- McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Quebec, Canada.,Department of Neurology and Neurosurgery, McGill University, Quebec, Canada
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803
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Japan society of clinical oncology/Japanese society of medical oncology-led clinical recommendations on the diagnosis and use of tropomyosin receptor kinase inhibitors in adult and pediatric patients with neurotrophic receptor tyrosine kinase fusion-positive advanced solid tumors, cooperated by the Japanese society of pediatric hematology/oncology. Int J Clin Oncol 2020; 25:403-417. [PMID: 31974683 PMCID: PMC7046581 DOI: 10.1007/s10147-019-01610-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 12/20/2019] [Indexed: 12/14/2022]
Abstract
Background The development of novel antitumor agents and accompanying biomarkers has improved survival across several tumor types. Previously, we published provisional clinical opinion for the diagnosis and use of immunotherapy in patients with deficient DNA mismatch repair tumors. Recently, efficacy of tropomyosin receptor kinase inhibitors against neurotrophic receptor tyrosine kinase (NTRK) fusion gene-positive advanced solid tumors have been established as the second tumor-agnostic treatment, making it necessary to develop the guideline prioritized for these patients. Methods Clinical questions regarding medical care were formulated for patients with NTRK-positive advanced solid tumors. Relevant publications were searched by PubMed and Cochrane Database. Critical publications and conference reports were added manually. Systematic reviews were performed for each clinical question for the purpose of developing clinical recommendations. The committee members identified by Japan Society of Clinical Oncology (JSCO) and Japanese Society of Medical Oncology (JSMO) voted to determine the level of each recommendation considering the strength of evidence, expected risks and benefits to patients, and other related factors. Thereafter, a peer review by experts nominated from JSCO, JSMO, and Japanese Society of Pediatric Hematology/Oncology, and the public comments among all Societies’ members was done. Results The current guideline describes 3 clinical questions and 15 recommendations for whom, when, and how NTRK fusion should be tested, and what is recommended for patients with NTRK fusion-positive advanced solid tumors. Conclusion In the NTRK guideline, the committee proposed 15 recommendations for performing NTRK testing properly to select patients who are likely to benefit from tropomyosin receptor kinase inhibitors. Electronic supplementary material The online version of this article (10.1007/s10147-019-01610-y) contains supplementary material, which is available to authorized users.
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804
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Gambella A, Senetta R, Collemi G, Vallero SG, Monticelli M, Cofano F, Zeppa P, Garbossa D, Pellerino A, Rudà R, Soffietti R, Fagioli F, Papotti M, Cassoni P, Bertero L. NTRK Fusions in Central Nervous System Tumors: A Rare, but Worthy Target. Int J Mol Sci 2020; 21:ijms21030753. [PMID: 31979374 PMCID: PMC7037946 DOI: 10.3390/ijms21030753] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 12/11/2022] Open
Abstract
The neurotrophic tropomyosin receptor kinase (NTRK) genes (NTRK1, NTRK2, and NTRK3) code for three transmembrane high-affinity tyrosine-kinase receptors for nerve growth factors (TRK-A, TRK-B, and TRK-C) which are mainly involved in nervous system development. Loss of function alterations in these genes can lead to nervous system development problems; conversely, activating alterations harbor oncogenic potential, promoting cell proliferation/survival and tumorigenesis. Chromosomal rearrangements are the most clinically relevant alterations of pathological NTRK activation, leading to constitutionally active chimeric receptors. NTRK fusions have been detected with extremely variable frequencies in many pediatric and adult cancer types, including central nervous system (CNS) tumors. These alterations can be detected by different laboratory assays (e.g., immunohistochemistry, FISH, sequencing), but each of these approaches has specific advantages and limitations which must be taken into account for an appropriate use in diagnostics or research. Moreover, therapeutic targeting of this molecular marker recently showed extreme efficacy. Considering the overall lack of effective treatments for brain neoplasms, it is expected that detection of NTRK fusions will soon become a mainstay in the diagnostic assessment of CNS tumors, and thus in-depth knowledge regarding this topic is warranted.
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Affiliation(s)
- Alessandro Gambella
- Pathology Unit, Department of Medical Sciences, University of Turin, 10126 Turin, Italy; (A.G.); (G.C.)
| | - Rebecca Senetta
- Pathology Unit, Department of Oncology, University of Turin, 10126 Turin, Italy; (R.S.); (M.P.)
| | - Giammarco Collemi
- Pathology Unit, Department of Medical Sciences, University of Turin, 10126 Turin, Italy; (A.G.); (G.C.)
| | - Stefano Gabriele Vallero
- Pediatric Onco-Hematology Unit, Department of Pediatric and Public Health Sciences, University of Turin, 10126 Turin, Italy; (S.G.V.); (F.F.)
| | - Matteo Monticelli
- Neurosurgery Unit, Department of Neurosciences, University of Turin, 10126 Turin, Italy; (M.M.); (F.C.); (P.Z.); (D.G.)
| | - Fabio Cofano
- Neurosurgery Unit, Department of Neurosciences, University of Turin, 10126 Turin, Italy; (M.M.); (F.C.); (P.Z.); (D.G.)
| | - Pietro Zeppa
- Neurosurgery Unit, Department of Neurosciences, University of Turin, 10126 Turin, Italy; (M.M.); (F.C.); (P.Z.); (D.G.)
| | - Diego Garbossa
- Neurosurgery Unit, Department of Neurosciences, University of Turin, 10126 Turin, Italy; (M.M.); (F.C.); (P.Z.); (D.G.)
| | - Alessia Pellerino
- Department of Neuro-Oncology, University and City of Health and Science Hospital, 10126 Turin, Italy; (A.P.); (R.R.); (R.S.)
| | - Roberta Rudà
- Department of Neuro-Oncology, University and City of Health and Science Hospital, 10126 Turin, Italy; (A.P.); (R.R.); (R.S.)
| | - Riccardo Soffietti
- Department of Neuro-Oncology, University and City of Health and Science Hospital, 10126 Turin, Italy; (A.P.); (R.R.); (R.S.)
| | - Franca Fagioli
- Pediatric Onco-Hematology Unit, Department of Pediatric and Public Health Sciences, University of Turin, 10126 Turin, Italy; (S.G.V.); (F.F.)
| | - Mauro Papotti
- Pathology Unit, Department of Oncology, University of Turin, 10126 Turin, Italy; (R.S.); (M.P.)
| | - Paola Cassoni
- Pathology Unit, Department of Medical Sciences, University of Turin, 10126 Turin, Italy; (A.G.); (G.C.)
| | - Luca Bertero
- Pathology Unit, Department of Medical Sciences, University of Turin, 10126 Turin, Italy; (A.G.); (G.C.)
- Correspondence: ; Tel.: +39-011-633-5466
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805
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Lee SJ, Hong JY, Kim K, Kim KM, Kang SY, Lee T, Kim ST, Park SH, Park YS, Lim HY, Kang WK, Lee J, Park JO. Detection of Fusion Genes Using a Targeted RNA Sequencing Panel in Gastrointestinal and Rare Cancers. JOURNAL OF ONCOLOGY 2020; 2020:4659062. [PMID: 32411236 PMCID: PMC7204148 DOI: 10.1155/2020/4659062] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 12/09/2019] [Accepted: 12/19/2019] [Indexed: 12/22/2022]
Abstract
Successful identification and targeting of oncogenic gene fusion is a major breakthrough in cancer treatment. Here, we investigate the therapeutic implications and feasibility of using a targeted RNA sequencing panel to identify fusion genes in gastrointestinal and rare cancers. From February through December 2017, patients with gastrointestinal, hepatobiliary, gynecologic, sarcoma, or rare cancers were recruited for a clinical sequencing project at Samsung Medical Center (NCT #02593578). The median age of the patients was 58 years (range, 31-81 years), and the male-to-female ratio was 1.3 : 1. A total of 118 patients passed the quality control process for a next-generation sequencing- (NGS-) based targeted sequencing assay. The NGS-based targeted sequencing assay was performed to detect gene fusions in 36-53 cancer-implicated genes. The following cancer types were included in this study: 28 colorectal cancers, 27 biliary tract cancers, 25 gastric cancers, 18 soft tissue sarcomas, 9 pancreatic cancers, 6 ovarian cancers, and 9 other rare cancers. Strong fusion was detected in 25 samples (21.2%). We found that 5.9% (7/118) of patients had known targetable fusion genes involving NTRK1 (n=3), FGFR (n=3), and RET (n=1), and 10.2% (12/118) of patients had potentially targetable fusion genes involving RAF1 (n=4), BRAF (n=2), ALK (n=2), ROS1 (n=1), EGFR (n=1), and CLDN18 (n=2). Thus, we successfully identified a substantial proportion of patients harboring fusion genes by RNA panel sequencing of gastrointestinal/rare cancers. Targetable and potentially targetable involved fusion genes were NTRK1, RET, FGFR3, FGFR2, BRAF, RAF1, ALK, ROS1, and CLDN18. Detection of fusion genes by RNA panel sequencing may be beneficial in refractory patients with gastrointestinal/rare cancers.
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Affiliation(s)
- Su Jin Lee
- Division of Hematology-Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Division of Hematology-Oncology, Department of Internal Medicine, Ewha Womans University College of Medicine, Seoul, Republic of Korea
| | - Jung Yong Hong
- Division of Hematology-Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Kyung Kim
- Division of Hematology-Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Kyoung-Mee Kim
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - So Young Kang
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Taeyang Lee
- Division of Hematology-Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Seung Tae Kim
- Division of Hematology-Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Se Hoon Park
- Division of Hematology-Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Young Suk Park
- Division of Hematology-Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Ho Yeong Lim
- Division of Hematology-Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Won Ki Kang
- Division of Hematology-Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jeeyun Lee
- Division of Hematology-Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Joon Oh Park
- Division of Hematology-Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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806
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Chu P, Batson S, Hodgson M, Mitchell CR, Steenrod A. Systematic review of neurotrophic tropomyosin-related kinase inhibition as a tumor-agnostic management strategy. Future Oncol 2020; 16:61-74. [PMID: 31942815 DOI: 10.2217/fon-2019-0534] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Aim: To conduct a systematic review and meta-analysis feasibility of clinical, quality of life and economic evidence for neurotrophic tropomyosin-related receptor tyrosine kinases (NTRK) inhibitors in patients with NTRK gene fusion-positive tumors. Materials & methods: Databases were searched for studies on NTRK inhibitors in adult and pediatric patients. Results: 27 publications reported clinical data for seven interventions. Efficacy/safety data were available for two interventions only. Four trials each reported data for larotrectinib and entrectinib with pooled analyses reporting objective response rates of 75% (95% CI: 61-85) and 57.4% (43.2-70.8), respectively. No publications reported economic or quality of life evidence. Conclusion: Preliminary data demonstrate that NTRK inhibitors are well tolerated and show impressive clinical benefit; corroboration of existing studies and real-world data are required.
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Affiliation(s)
- Paula Chu
- F Hoffmann-La Roche Ltd., Global Access, 4070 Basel, Switzerland
| | - Sarah Batson
- Mtech Access Ltd., 30 Murdock Road, Bicester, OX26 4PP, UK
| | - Matthew Hodgson
- Roche Products Ltd., Health Economics and Strategic Pricing, Welwyn Garden City, AL7 1TW, UK
| | | | - Anna Steenrod
- F Hoffmann-La Roche Ltd., Global Access, 4070 Basel, Switzerland
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807
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Subramanian G, Vairagoundar R, Bowen SJ, Roush N, Zachary T, Javens C, Williams T, Janssen A, Gonzales A. Synthetic inhibitor leads of human tropomyosin receptor kinase A ( hTrkA). RSC Med Chem 2020; 11:370-377. [PMID: 33479642 DOI: 10.1039/c9md00554d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 12/22/2019] [Indexed: 11/21/2022] Open
Abstract
In silico virtual screening followed by in vitro biochemical, biophysical, and cellular screening resulted in the identification of distinctly different hTrkA kinase domain inhibitor scaffolds. X-ray structural analysis of representative inhibitors bound to hTrkA kinase domain defined the binding mode and rationalized the mechanism of action. Preliminary assessment of the sub-type selectivity against the closest hTrkB isoform, and early ADME guided the progression of select inhibitor leads in the screening cascade. The possibility of the actives sustaining to known hTrkA resistance mutations assessed in silico offers initial guidance into the required multiparametric lead optimization to arrive at a clinical candidate.
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Affiliation(s)
- Govindan Subramanian
- Veterinary Medicine Research & Development , Zoetis , 333 Portage Street , Kalamazoo , MI 49007 , USA .
| | - Rajendran Vairagoundar
- Veterinary Medicine Research & Development , Zoetis , 333 Portage Street , Kalamazoo , MI 49007 , USA .
| | - Scott J Bowen
- Veterinary Medicine Research & Development , Zoetis , 333 Portage Street , Kalamazoo , MI 49007 , USA .
| | - Nicole Roush
- Veterinary Medicine Research & Development , Zoetis , 333 Portage Street , Kalamazoo , MI 49007 , USA .
| | - Theresa Zachary
- Veterinary Medicine Research & Development , Zoetis , 333 Portage Street , Kalamazoo , MI 49007 , USA .
| | - Christopher Javens
- Veterinary Medicine Research & Development , Zoetis , 333 Portage Street , Kalamazoo , MI 49007 , USA .
| | - Tracey Williams
- Veterinary Medicine Research & Development , Zoetis , 333 Portage Street , Kalamazoo , MI 49007 , USA .
| | - Ann Janssen
- Veterinary Medicine Research & Development , Zoetis , 333 Portage Street , Kalamazoo , MI 49007 , USA .
| | - Andrea Gonzales
- Veterinary Medicine Research & Development , Zoetis , 333 Portage Street , Kalamazoo , MI 49007 , USA .
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808
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Roles of TrkC Signaling in the Regulation of Tumorigenicity and Metastasis of Cancer. Cancers (Basel) 2020; 12:cancers12010147. [PMID: 31936239 PMCID: PMC7016819 DOI: 10.3390/cancers12010147] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 01/02/2020] [Accepted: 01/07/2020] [Indexed: 12/12/2022] Open
Abstract
Tropomyosin receptor kinase (Trk) C contributes to the clinicopathology of a variety of human cancers, and new chimeric oncoproteins containing the tyrosine kinase domain of TrkC occur after fusion to the partner genes. Overexpression of TrkC and TrkC fusion proteins was observed in patients with a variety of cancers, including mesenchymal, hematopoietic, and those of epithelial cell lineage. Both microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) were involved in the regulation of TrkC expression through transcriptional and posttranscriptional alteration. Aberrant activation of TrkC and TrkC fusion proteins markedly induces the epithelial-mesenchymal transition (EMT) program, growth rate, tumorigenic capacity via constitutive activation of Ras-MAP kinase (MAPK), PI3K-AKT, and the JAK2-STAT3 pathway. The clinical trial of TrkC or TrkC fusion-positive cancers with newly developed Trk inhibitors demonstrated that Trk inhibitors were highly effective in inducing tumor regression in patients who do not harbor mutations in the kinase domain. Recently, there has been a progressive accumulation of mutations in TrkC or the TrkC fusion protein detected in the clinic and its related cancer cell lines caused by high-throughput DNA sequencing. Despite given the high overall response rate against Trk or Trk fusion proteins-positive solid tumors, acquired drug resistance was observed in patients with various cancers caused by mutations in the Trk kinase domain. To overcome acquired resistance caused by kinase domain mutation, next-generation Trk inhibitors have been developed, and these inhibitors are currently under investigation in clinical trials.
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809
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Anania MC, Di Marco T, Mazzoni M, Greco A. Targeting Non-Oncogene Addiction: Focus on Thyroid Cancer. Cancers (Basel) 2020; 12:cancers12010129. [PMID: 31947935 PMCID: PMC7017043 DOI: 10.3390/cancers12010129] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 12/21/2019] [Accepted: 12/24/2019] [Indexed: 12/12/2022] Open
Abstract
Thyroid carcinoma (TC) is the most common malignancy of endocrine organs with an increasing incidence in industrialized countries. The majority of TC are characterized by a good prognosis, even though cases with aggressive forms not cured by standard therapies are also present. Moreover, target therapies have led to low rates of partial response and prompted the emergence of resistance, indicating that new therapies are needed. In this review, we summarize current literature about the non-oncogene addiction (NOA) concept, which indicates that cancer cells, at variance with normal cells, rely on the activity of genes, usually not mutated or aberrantly expressed, essential for coping with the transformed phenotype. We highlight the potential of non-oncogenes as a point of intervention for cancer therapy in general, and present evidence for new putative non-oncogenes that are essential for TC survival and that may constitute attractive new therapeutic targets.
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810
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Franco ML, Nadezhdin KD, Goncharuk SA, Mineev KS, Arseniev AS, Vilar M. Structural basis of the transmembrane domain dimerization and rotation in the activation mechanism of the TRKA receptor by nerve growth factor. J Biol Chem 2020; 295:275-286. [PMID: 31801826 PMCID: PMC6952603 DOI: 10.1074/jbc.ra119.011312] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 11/26/2019] [Indexed: 01/03/2023] Open
Abstract
Tropomyosin-receptor kinases (TRKs) are essential for the development of the nervous system. The molecular mechanism of TRKA activation by its ligand nerve growth factor (NGF) is still unsolved. Recent results indicate that at endogenous levels most of TRKA is in a monomer-dimer equilibrium and that the binding of NGF induces an increase of the dimeric and oligomeric forms of this receptor. An unsolved issue is the role of the TRKA transmembrane domain (TMD) in the dimerization of TRKA and the structural details of the TMD in the active dimer receptor. Here, we found that the TRKA-TMD can form dimers, identified the structural determinants of the dimer interface in the active receptor, and validated this interface through site-directed mutagenesis together with functional and cell differentiation studies. Using in vivo cross-linking, we found that the extracellular juxtamembrane region is reordered after ligand binding. Replacement of some residues in the juxtamembrane region with cysteine resulted in ligand-independent active dimers and revealed the preferred dimer interface. Moreover, insertion of leucine residues into the TMD helix induced a ligand-independent TRKA activation, suggesting that a rotation of the TMD dimers underlies NGF-induced TRKA activation. Altogether, our findings indicate that the transmembrane and juxtamembrane regions of TRKA play key roles in its dimerization and activation by NGF.
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Affiliation(s)
- María L Franco
- Molecular Basis of Neurodegeneration Unit, Institute of Biomedicine of València, Consejo Superior de Investigaciones Científicas, 46010 València, Spain
| | - Kirill D Nadezhdin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow 117997, Russian Federation; Moscow Institute of Physics and Technology (State University), Institutskiy Pereulok 9, Dolgoprudny, Moscow Region 141700, Russian Federation
| | - Sergey A Goncharuk
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow 117997, Russian Federation; Moscow Institute of Physics and Technology (State University), Institutskiy Pereulok 9, Dolgoprudny, Moscow Region 141700, Russian Federation
| | - Konstantin S Mineev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow 117997, Russian Federation; Moscow Institute of Physics and Technology (State University), Institutskiy Pereulok 9, Dolgoprudny, Moscow Region 141700, Russian Federation
| | - Alexander S Arseniev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow 117997, Russian Federation; Moscow Institute of Physics and Technology (State University), Institutskiy Pereulok 9, Dolgoprudny, Moscow Region 141700, Russian Federation.
| | - Marçal Vilar
- Molecular Basis of Neurodegeneration Unit, Institute of Biomedicine of València, Consejo Superior de Investigaciones Científicas, 46010 València, Spain.
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811
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Tafe LJ. Non-Small Cell Lung Cancer as a Precision Oncology Paradigm: Emerging Targets and Tumor Mutational Burden (TMB). Adv Anat Pathol 2020; 27:3-10. [PMID: 31567128 DOI: 10.1097/pap.0000000000000244] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Non-small cell lung cancer (NSCLC), since the recognition of epidermal growth factor receptor (EGFR) mutations that sensitized tumors to EGFR tyrosine kinase inhibitors, has been a poster child for precision oncology in solid tumors. The emergence of resistance to the EGFR tyrosine kinase inhibitors led to the unveiling of multiple resistance mechanisms that are now recognized to be frequent mechanisms across multiple tumor types. Coevolution of technological advancements in testing methods available to clinical laboratories now has identified a growing number of molecularly defined subsets of NSCLC that have new therapeutic implications. In addition, identifying patients eligible for immunotherapy is another goal for precision oncology. Recently, studies suggest that TMB may be a promising biomarker for selecting patients with NSCLC for immunotherapy. This review focuses on emerging potentially targetable alterations specifically in RET, ERBB2 (HER2), MET, and KRAS and current evidence and controversies surrounding TMB testing.
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812
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Linos K. Sarcomas. Genomic Med 2020. [DOI: 10.1007/978-3-030-22922-1_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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813
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Okusaka T, Furuse J. Recent advances in chemotherapy for pancreatic cancer: evidence from Japan and recommendations in guidelines. J Gastroenterol 2020; 55:369-382. [PMID: 31997007 PMCID: PMC7080663 DOI: 10.1007/s00535-020-01666-y] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 01/07/2020] [Indexed: 02/04/2023]
Abstract
The prognosis of patients with pancreatic cancer continues to remain dismal, even though numerous trials have been conducted to establish more effective therapies in Japan and throughout the world. Recent advances in treatment have been characterized by the use of novel combinations of conventional cytotoxic chemotherapies. Especially in Japan, S-1 has become one of the most widely used cytotoxic agents for the treatment of pancreatic cancer, after clinical evidence was established of the survival benefit offered by this drug for patients with resectable or unresectable pancreatic cancer. Unfortunately, with the exception of erlotinib, no targeted treatment strategies have been approved for pancreatic cancer. However, following an increase in interest in drug development in recent years, proactive attempts have been made to develop new therapeutic strategies, including neoadjuvant chemotherapy for patients with resectable or borderline resectable pancreatic cancer, multi-agent combination chemotherapy for patients with advanced pancreatic cancer, and therapies with new targeted agents or immuno-oncologic agents for patients with pancreatic cancer bearing specific gene mutations.
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Affiliation(s)
- Takuji Okusaka
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
| | - Junji Furuse
- Department of Medical Oncology, Faculty of Medicine, Kyorin University, Tokyo, Japan
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814
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Tella SH, Kommalapati A, Borad MJ, Mahipal A. Second-line therapies in advanced biliary tract cancers. Lancet Oncol 2020; 21:e29-e41. [DOI: 10.1016/s1470-2045(19)30733-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 10/14/2019] [Accepted: 10/22/2019] [Indexed: 02/07/2023]
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815
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NTRK fusion detection across multiple assays and 33,997 cases: diagnostic implications and pitfalls. Mod Pathol 2020; 33:38-46. [PMID: 31375766 PMCID: PMC7437403 DOI: 10.1038/s41379-019-0324-7] [Citation(s) in RCA: 333] [Impact Index Per Article: 83.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 06/14/2019] [Accepted: 06/15/2019] [Indexed: 01/04/2023]
Abstract
With the FDA approval of larotrectinib, NTRK fusion assessment has recently become a standard part of management for patients with locally advanced or metastatic cancers. Unlike somatic mutation assessment, the detection of NTRK fusions is not straightforward, and various assays exist at the DNA, RNA, and protein level. Here, we investigate the performance of immunohistochemistry and DNA-based next-generation sequencing to indirectly or directly detect NTRK fusions relative to an RNA-based next-generation sequencing approach in the largest cohort of NTRK fusion positive solid tumors to date. A retrospective analysis of 38,095 samples from 33,997 patients sequenced by a targeted DNA-based next-generation sequencing panel (MSK-IMPACT), 2189 of which were also examined by an RNA-based sequencing assay (MSK-Fusion), identified 87 patients with oncogenic NTRK1-3 fusions. All available institutional NTRK fusion positive cases were assessed by pan-Trk immunohistochemistry along with a cohort of control cases negative for NTRK fusions by next-generation sequencing. DNA-based sequencing showed an overall sensitivity and specificity of 81.1% and 99.9%, respectively, for the detection of NTRK fusions when compared to RNA-based sequencing. False negatives occurred when fusions involved breakpoints not covered by the assay. Immunohistochemistry showed overall sensitivity of 87.9% and specificity of 81.1%, with high sensitivity for NTRK1 (96%) and NTRK2 (100%) fusions and lower sensitivity for NTRK3 fusions (79%). Specificity was 100% for carcinomas of the colon, lung, thyroid, pancreas, and biliary tract. Decreased specificity was seen in breast and salivary gland carcinomas (82% and 52%, respectively), and positive staining was often seen in tumors with neural differentiation. Both sensitivity and specificity were poor in sarcomas. Selection of the appropriate assay for NTRK fusion detection therefore depends on tumor type and genes involved, as well as consideration of other factors such as available material, accessibility of various clinical assays, and whether comprehensive genomic testing is needed concurrently.
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816
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Immunity against cancer cells may promote their proliferation and metastasis. Proc Natl Acad Sci U S A 2019; 117:426-431. [PMID: 31871166 DOI: 10.1073/pnas.1916833117] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Herein we present a concept in cancer where an immune response is detrimental rather than helpful. In the cancer setting, the immune system is generally considered to be helpful in curtailing the initiation and progression of tumors. In this work we show that a patient's immune response to their tumor can, in fact, either enhance or inhibit tumor cell growth. Two closely related autoantibodies to the growth factor receptor TrkB were isolated from cancer patients' B cells. Although highly similar in sequence, one antibody was an agonist while the other was an antagonist. The agonist antibody was shown to increase breast cancer cell growth both in vitro and in vivo, whereas the antagonist antibody inhibited growth. From a mechanistic point of view, we showed that binding of the agonist antibody to the TrkB receptor was functional in that it initiated downstream signaling identical to its natural growth factor ligand, brain-derived neurotrophic factor (BDNF). Our study shows that individual autoantibodies may play a role in cancer patients.
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817
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Roskoski R. Properties of FDA-approved small molecule protein kinase inhibitors: A 2020 update. Pharmacol Res 2019; 152:104609. [PMID: 31862477 DOI: 10.1016/j.phrs.2019.104609] [Citation(s) in RCA: 349] [Impact Index Per Article: 69.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 12/16/2019] [Indexed: 02/07/2023]
Abstract
Because genetic alterations including mutations, overexpression, translocations, and dysregulation of protein kinases are involved in the pathogenesis of many illnesses, this enzyme family is currently the subject of many drug discovery programs in the pharmaceutical industry. The US FDA approved four small molecule protein kinase antagonists in 2019; these include entrectinib, erdafitinib, pexidartinib, and fedratinib. Entrectinib binds to TRKA/B/C and ROS1 and is prescribed for the treatment of solid tumors with NTRK fusion proteins and for ROS1-postive non-small cell lung cancers. Erdafitinib inhibits fibroblast growth factor receptors 1-4 and is used in the treatment of urothelial bladder cancers. Pexidartinib is a CSF1R antagonist that is prescribed for the treatment of tenosynovial giant cell tumors. Fedratinib blocks JAK2 and is used in the treatment of myelofibrosis. Overall, the US FDA has approved 52 small molecule protein kinase inhibitors, nearly all of which are orally effective with the exceptions of temsirolimus (which is given intravenously) and netarsudil (an eye drop). Of the 52 approved drugs, eleven inhibit protein-serine/threonine protein kinases, two are directed against dual specificity protein kinases, eleven target non-receptor protein-tyrosine kinases, and 28 block receptor protein-tyrosine kinases. The data indicate that 46 of these drugs are used in the treatment of neoplastic diseases (eight against non-solid tumors such as leukemias and 41 against solid tumors including breast and lung cancers; some drugs are used against both tumor types). Eight drugs are employed in the treatment of non-malignancies: fedratinib, myelofibrosis; ruxolitinib, myelofibrosis and polycythemia vera; fostamatinib, chronic immune thrombocytopenia; baricitinib, rheumatoid arthritis; sirolimus, renal graft vs. host disease; nintedanib, idiopathic pulmonary fibrosis; netarsudil, glaucoma; and tofacitinib, rheumatoid arthritis, Crohn disease, and ulcerative colitis. Moreover, sirolimus and ibrutinib are used for the treatment of both neoplastic and non-neoplastic diseases. Entrectinib and larotrectinib are tissue-agnostic anti-cancer small molecule protein kinase inhibitors. These drugs are prescribed for the treatment of any solid cancer harboring NTRK1/2/3 fusion proteins regardless of the organ, tissue, anatomical location, or histology type. Of the 52 approved drugs, seventeen are used in the treatment of more than one disease. Imatinib, for example, is approved for the treatment of eight disparate disorders. The most common drug targets of the approved pharmaceuticals include BCR-Abl, B-Raf, vascular endothelial growth factor receptors (VEGFR), epidermal growth factor receptors (EGFR), and ALK. Most of the approved small molecule protein kinase antagonists (49) bind to the protein kinase domain and six of them bind covalently. In contrast, everolimus, temsirolimus, and sirolimus are larger molecules (MW ≈ 1000) that bind to FK506 binding protein-12 (FKBP-12) to generate a complex that inhibits the mammalian target of rapamycin (mTOR) protein kinase complex. This review presents the physicochemical properties of all of the FDA-approved small molecule protein kinase inhibitors. Twenty-two of the 52 drugs have molecular weights greater than 500, exceeding a Lipinski rule of five criterion. Excluding the macrolides (everolimus, sirolimus, temsirolimus), the average molecular weight of the approved drugs is 480 with a range of 306 (ruxolitinib) to 615 (trametinib). More than half of the antagonists (29) have lipophilic efficiency values of less than five while the recommended optima range from 5 to 10. One of the troublesome problems with both targeted and cytotoxic drugs in the treatment of malignant diseases is the near universal development of resistance to every therapeutic modality.
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Affiliation(s)
- Robert Roskoski
- Blue Ridge Institute for Medical Research, 3754 Brevard Road, Suite 116, Box 19, Horse Shoe, North Carolina, 28742-8814, United States.
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818
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Boufraqech M, Nilubol N. Multi-omics Signatures and Translational Potential to Improve Thyroid Cancer Patient Outcome. Cancers (Basel) 2019; 11:cancers11121988. [PMID: 31835496 PMCID: PMC6966476 DOI: 10.3390/cancers11121988] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 12/03/2019] [Indexed: 02/07/2023] Open
Abstract
Recent advances in high-throughput molecular and multi-omics technologies have improved our understanding of the molecular changes associated with thyroid cancer initiation and progression. The translation into clinical use based on molecular profiling of thyroid tumors has allowed a significant improvement in patient risk stratification and in the identification of targeted therapies, and thereby better personalized disease management and outcome. This review compiles the following: (1) the major molecular alterations of the genome, epigenome, transcriptome, proteome, and metabolome found in all subtypes of thyroid cancer, thus demonstrating the complexity of these tumors and (2) the great translational potential of multi-omics studies to improve patient outcome.
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819
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Marchetti A, Di Lorito A, Felicioni L, Buttitta F. An innovative diagnostic strategy for the detection of rare molecular targets to select cancer patients for tumor-agnostic treatments. Oncotarget 2019; 10:6957-6968. [PMID: 31857850 PMCID: PMC6916754 DOI: 10.18632/oncotarget.27343] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 10/26/2019] [Indexed: 12/25/2022] Open
Abstract
Targeted therapies are playing an increasing role in oncology. Among them, particular attention is nowadays reserved to histology-agnostic treatments. Rare molecular alterations affecting different neoplastic forms, such as Microsatellite Instability (MSI), Neurotropic Tyrosine Receptor Kinase (NTRK) gene fusions, etc., can allow efficient treatments, irrespective of the histologic type. Developing an effective testing strategy for the detection of rare molecular alterations is challenging. We report an innovative diagnostic strategy for a rapid and economically affordable detection of this uncommon targets. Malignant tumor samples are selected at the time of histopathological diagnosis and further processed for simultaneous analysis of multiple samples on Tissue Micro Arrays (TMAs) and Tissue Slice Arrays (TSAs). The TSA approach was specifically designed for large scale screening of small biopsies. TMA sections and TSA were first screened by immunohistochemistry (IHC) for the expression of mismatch repair and TRK proteins. Positive cases were subjected to confirmation tests (fragment analysis/FISH/NGS). In a series of 1865 malignant tumors, 48 (2.6%) MSI cases and 6 (0.3%) NTRK fusion cases were detected in 9 and 4 different tumor forms, respectively. On average, the TMA/TSA screening approach enabled IHC analysis of about 20 patients simultaneously with significant saving of time and costs. In addition, we have shown that multiplex IHC can further increment the throughput. A detailed procedure for application of this diagnostic approach in clinical practice is reported. The strategy described may allow an efficient and sustainable selection of tumors carrying rare molecular targets, not to leave behind patients for effective agnostic treatments.
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Affiliation(s)
- Antonio Marchetti
- Laboratory of Diagnostic Molecular Oncology, Center for Advanced Studies and Technology (CAST), University of Chieti, Chieti, Italy
- Department of Medical and Oral Sciences and Biotechnologies, University of Chieti, Chieti, Italy
- Department of Pathology, SS Annunziata Clinical Hospital, Chieti, Italy
| | - Alessia Di Lorito
- Department of Medical and Oral Sciences and Biotechnologies, University of Chieti, Chieti, Italy
| | - Lara Felicioni
- Department of Pathology, SS Annunziata Clinical Hospital, Chieti, Italy
| | - Fiamma Buttitta
- Laboratory of Diagnostic Molecular Oncology, Center for Advanced Studies and Technology (CAST), University of Chieti, Chieti, Italy
- Department of Medical and Oral Sciences and Biotechnologies, University of Chieti, Chieti, Italy
- Department of Pathology, SS Annunziata Clinical Hospital, Chieti, Italy
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820
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Triaca V, Carito V, Fico E, Rosso P, Fiore M, Ralli M, Lambiase A, Greco A, Tirassa P. Cancer stem cells-driven tumor growth and immune escape: the Janus face of neurotrophins. Aging (Albany NY) 2019; 11:11770-11792. [PMID: 31812953 PMCID: PMC6932930 DOI: 10.18632/aging.102499] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 11/17/2019] [Indexed: 05/12/2023]
Abstract
Cancer Stem Cells (CSCs) are self-renewing cancer cells responsible for expansion of the malignant mass in a dynamic process shaping the tumor microenvironment. CSCs may hijack the host immune surveillance resulting in typically aggressive tumors with poor prognosis.In this review, we focus on neurotrophic control of cellular substrates and molecular mechanisms involved in CSC-driven tumor growth as well as in host immune surveillance. Neurotrophins have been demonstrated to be key tumor promoting signaling platforms. Particularly, Nerve Growth Factor (NGF) and its specific receptor Tropomyosin related kinase A (TrkA) have been implicated in initiation and progression of many aggressive cancers. On the other hand, an active NGF pathway has been recently proven to be critical to oncogenic inflammation control and in promoting immune response against cancer, pinpointing possible pro-tumoral effects of NGF/TrkA-inhibitory therapy.A better understanding of the molecular mechanisms involved in the control of tumor growth/immunoediting is essential to identify new predictive and prognostic intervention and to design more effective therapies. Fine and timely modulation of CSCs-driven tumor growth and of peripheral lymph nodes activation by the immune system will possibly open the way to precision medicine in neurotrophic therapy and improve patient's prognosis in both TrkA- dependent and independent cancers.
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Affiliation(s)
- Viviana Triaca
- Institute of Biochemistry and Cell Biology, National Research Council (CNR), International Campus A. Buzzati-Traverso, Monterotondo Scalo, Rome, Italy
| | - Valentina Carito
- Institute of Biochemistry and Cell Biology, National Research Council (CNR), at Department of Sense Organs, University of Rome La Sapienza, Rome, Italy
| | - Elena Fico
- Institute of Biochemistry and Cell Biology, National Research Council (CNR), at Department of Sense Organs, University of Rome La Sapienza, Rome, Italy
| | - Pamela Rosso
- Institute of Biochemistry and Cell Biology, National Research Council (CNR), at Department of Sense Organs, University of Rome La Sapienza, Rome, Italy
| | - Marco Fiore
- Institute of Biochemistry and Cell Biology, National Research Council (CNR), at Department of Sense Organs, University of Rome La Sapienza, Rome, Italy
| | - Massimo Ralli
- Department of Sense Organs, University of Rome La Sapienza, Rome, Italy
| | | | - Antonio Greco
- Department of Sense Organs, University of Rome La Sapienza, Rome, Italy
| | - Paola Tirassa
- Institute of Biochemistry and Cell Biology, National Research Council (CNR), at Department of Sense Organs, University of Rome La Sapienza, Rome, Italy
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821
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Harrison BT, Fowler E, Krings G, Chen YY, Bean GR, Vincent-Salomon A, Fuhrmann L, Barnick SE, Chen B, Hosfield EM, Hornick JL, Schnitt SJ. Pan-TRK Immunohistochemistry: A Useful Diagnostic Adjunct For Secretory Carcinoma of the Breast. Am J Surg Pathol 2019; 43:1693-1700. [PMID: 31498178 DOI: 10.1097/pas.0000000000001366] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Secretory carcinoma is a special-type breast carcinoma underpinned by a recurrent t(12;15)(p13;q25) translocation resulting in ETV6-NTRK3 gene fusion. Immunohistochemistry (IHC) using a pan-TRK antibody has been recently shown to help identify NTRK rearrangements in other tumor types. The purpose of this study was to assess the diagnostic utility of pan-TRK IHC in secretory carcinoma of the breast. Pan-TRK IHC was performed using a rabbit monoclonal antibody on whole sections of 24 breast secretory carcinomas and tissue microarray sections of other breast carcinoma types (n=203) and histologic mimics (n=15). Cases were assessed for staining intensity and localization. The 24 patients with secretory carcinoma had a median age of 44 years and a median tumor size of 1.0 cm. ETV6 fluorescence in situ hybridization was positive in all cases tested (n=20). Twenty-three cases (95.8%) showed staining with pan-TRK, which was exclusively nuclear in 19, primarily nuclear with weak cytoplasmic staining in 3, and primarily cytoplasmic with focal nuclear staining in 1. The nuclear staining was diffuse in 17 and at least focally strong in 17. The only pan-TRK negative case was a core biopsy with limited tumor. Among the 203 nonsecretory carcinomas, 21 (10.3%) showed focal, weak nuclear staining in <5% of tumor cells and 1 (0.5%) showed focal membranous staining. All histologic mimics were negative. In conclusion, diffuse and/or at least focally strong nuclear pan-TRK staining is a sensitive and specific marker for secretory carcinoma of the breast.
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Affiliation(s)
- Beth T Harrison
- Department of Pathology, Brigham and Women's Hospital
- Harvard Medical School
| | - Elizabeth Fowler
- Department of Pathology, Brigham and Women's Hospital
- Harvard Medical School
| | - Gregor Krings
- Department of Pathology, University of California San Francisco
| | - Yunn-Yi Chen
- Department of Pathology, University of California San Francisco
| | - Gregory R Bean
- Department of Pathology, Stanford University School of Medicine, Stanford, CA
| | | | | | - Sandra E Barnick
- Department of Pathology, Memorial Hospital West, Pembroke Pines, FL
| | - Beiyun Chen
- Department of Pathology, Mayo Clinic and Foundation, Rochester, MN
| | - Elizabeth M Hosfield
- Department of Pathology, Kaiser Permanente San Francisco Medical Center, San Francisco
| | - Jason L Hornick
- Department of Pathology, Brigham and Women's Hospital
- Harvard Medical School
| | - Stuart J Schnitt
- Department of Pathology, Brigham and Women's Hospital
- Harvard Medical School
- Dana-Farber Cancer Institute, Boston, MA
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822
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A review of predictive, prognostic and diagnostic biomarkers for non-small-cell lung cancer: towards personalised and targeted cancer therapy. JOURNAL OF RADIOTHERAPY IN PRACTICE 2019. [DOI: 10.1017/s1460396919000876] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AbstractIntroduction:Lung cancer has a high mortality rate mainly due to the lack of early detection or outward signs and symptoms, thereby often progressing to advanced stages (e.g., stage IV) before it is diagnosed. However, if lung cancers can be diagnosed at an early stage and also if clinicians can prospectively identify patients likely to respond to specific treatments, then there is a very high potential to increase patients’ survival. In recent years, several investigations have been conducted to identify cancer biomarkers for lung cancer risk assessment, early detection and diagnosis, the likelihood of identifying the group of patients who will benefit from a particular treatment and monitoring patient response to treatment.Materials and Methods:This paper reports on the review of 19 current clinical and emerging biomarkers used in risk assessment, screening for early detection and diagnosis and monitoring the response of treatment of non-small-cell lung cancers.Conclusion:The future holds promise for personalised and targeted medicine from prevention, diagnosis to treatment, which take into account individual patient’s variability, though it depends on the development of effective biomarkers interrogating the key aberrant pathways and potentially targetable with molecular targeted or immunologic therapies. Lung cancer biomarkers have the potential to guide clinical decision-making since they can potentially detect the disease early, measure the risk of developing the disease and the risk of progression, provide accurate information of patient response to a specific treatment and are capable of informing clinicians about the likely outcome of a cancer diagnosis independent of the treatment received. Moreover, lung cancer biomarkers are increasingly linked to specific molecular pathway deregulations and/or cancer pathogenesis and can be used to justify the application of certain therapeutic or interventional strategies.
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823
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Hochmair MJ, Setinek U, Krenbek D, Fazekas A, Illini O, Weinlinger C, Draxler H, Marcher M, Valipour A, Müllauer L, Beer L. Rapid Clinical and Radiologic Responses With Larotrectinib Treatment in a Patient With TRK-Fusion-Positive Metastatic Lung Cancer. Clin Lung Cancer 2019; 21:e49-e53. [PMID: 31879191 DOI: 10.1016/j.cllc.2019.11.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 10/30/2019] [Accepted: 11/10/2019] [Indexed: 10/25/2022]
Affiliation(s)
- Maximilian Johannes Hochmair
- Department of Respiratory and Critical Care Medicine, Karl Landsteiner Institute of Lung Research and Pulmonary Oncology, Krankenhaus Nord, Vienna, Austria.
| | - Ulrike Setinek
- Department of Pathology, Wilhelminenspital, Vienna, Austria
| | - Dagmar Krenbek
- Department of Pathology, Wilhelminenspital, Vienna, Austria; Department of Pathology, Klinik Floridsdorf, Krankenhaus Nord, Vienna, Austria
| | - Andreas Fazekas
- Department of Respiratory and Critical Care Medicine, Karl Landsteiner Institute of Lung Research and Pulmonary Oncology, Krankenhaus Nord, Vienna, Austria
| | - Oliver Illini
- Department of Respiratory and Critical Care Medicine, Karl Landsteiner Institute of Lung Research and Pulmonary Oncology, Krankenhaus Nord, Vienna, Austria
| | - Christoph Weinlinger
- Department of Respiratory and Critical Care Medicine, Karl Landsteiner Institute of Lung Research and Pulmonary Oncology, Krankenhaus Nord, Vienna, Austria
| | - Hermann Draxler
- Department of Respiratory and Critical Care Medicine, Karl Landsteiner Institute of Lung Research and Pulmonary Oncology, Krankenhaus Nord, Vienna, Austria
| | - Markus Marcher
- Department of Thoracic Surgery, Klinik Floridsdorf, Krankenhaus Nord, Vienna, Austria
| | - Arschang Valipour
- Department of Respiratory and Critical Care Medicine, Karl Landsteiner Institute of Lung Research and Pulmonary Oncology, Krankenhaus Nord, Vienna, Austria
| | - Leonhard Müllauer
- Institute of Pathology, Medical University of Vienna, Vienna, Austria
| | - Lucian Beer
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria; Department of Radiology and Cancer Research UK, Cambridge, England, UK
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824
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Pfarr N, Kirchner M, Lehmann U, Leichsenring J, Merkelbach‐Bruse S, Glade J, Hummel M, Stögbauer F, Lehmann A, Trautmann M, Kumbrink J, Jung A, Dietmaier W, Endris V, Kazdal D, Evert M, Horst D, Kreipe H, Kirchner T, Wardelmann E, Lassen U, Büttner R, Weichert W, Dietel M, Schirmacher P, Stenzinger A. Testing
NTRK
testing: Wet‐lab and in silico comparison of RNA‐based targeted sequencing assays. Genes Chromosomes Cancer 2019; 59:178-188. [DOI: 10.1002/gcc.22819] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 10/19/2019] [Accepted: 10/22/2019] [Indexed: 01/03/2023] Open
Affiliation(s)
- Nicole Pfarr
- Institute of PathologyTechnical University Munich (TUM) Munich Germany
| | - Martina Kirchner
- Institute of PathologyUniversity Hospital Heidelberg Heidelberg Germany
| | - Ulrich Lehmann
- Institute of PathologyUniversity Hospital Hannover Hannover Germany
| | | | | | - Julia Glade
- Institute of PathologyUniversity Hospital Heidelberg Heidelberg Germany
| | - Michael Hummel
- Institute of PathologyCharité University Hospital Berlin Germany
| | - Fabian Stögbauer
- Institute of PathologyTechnical University Munich (TUM) Munich Germany
| | - Annika Lehmann
- Institute of PathologyCharité University Hospital Berlin Germany
| | - Marcel Trautmann
- Gerhard‐Domagk‐Institute of Pathology, and Division of Translational Pathology, Gerhard‐Domagk‐Institute of PathologyUniversity Hospital Münster Münster Germany
| | - Jörg Kumbrink
- Institute of PathologyLudwig Maximilian University (LMU) Munich Germany
| | - Andreas Jung
- Institute of PathologyLudwig Maximilian University (LMU) Munich Germany
| | | | - Volker Endris
- Institute of PathologyUniversity Hospital Heidelberg Heidelberg Germany
| | - Daniel Kazdal
- Institute of PathologyUniversity Hospital Heidelberg Heidelberg Germany
| | - Matthias Evert
- Institute of PathologyUniversity Hospital Regensburg Regensburg Germany
| | - David Horst
- Institute of PathologyCharité University Hospital Berlin Germany
| | - Hans Kreipe
- Institute of PathologyUniversity Hospital Hannover Hannover Germany
| | - Thomas Kirchner
- Institute of PathologyLudwig Maximilian University (LMU) Munich Germany
| | - Eva Wardelmann
- Gerhard‐Domagk‐Institute of Pathology, and Division of Translational Pathology, Gerhard‐Domagk‐Institute of PathologyUniversity Hospital Münster Münster Germany
| | - Ulrik Lassen
- Department of Oncology, RigshospitaletUniversity of Copenhagen Copenhagen Denmark
| | - Reinhard Büttner
- Institute of PathologyUniversity Hospital Cologne Cologne Germany
| | - Wilko Weichert
- Institute of PathologyTechnical University Munich (TUM) Munich Germany
| | | | - Peter Schirmacher
- Institute of PathologyUniversity Hospital Heidelberg Heidelberg Germany
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825
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Su D, Zhang D, Jin J, Ying L, Han M, Chen K, Li B, Wu J, Xie Z, Zhang F, Lin Y, Cheng G, Li JY, Huang M, Wang J, Wang K, Zhang J, Li F, Xiong L, Futreal A, Mao W. Identification of predictors of drug sensitivity using patient-derived models of esophageal squamous cell carcinoma. Nat Commun 2019; 10:5076. [PMID: 31700061 PMCID: PMC6838071 DOI: 10.1038/s41467-019-12846-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 09/30/2019] [Indexed: 02/08/2023] Open
Abstract
Previous studies from the Cancer Cell Line Encyclopedia (CCLE) project have adopted commercial pan-cancer cell line models to identify drug sensitivity biomarkers. However, drug sensitivity biomarkers in esophageal squamous cell carcinoma (ESCC) have not been widely explored. Here, eight patient-derived cell lines (PDCs) are successfully established from 123 patients with ESCC. The mutation profiling of PDCs can partially recapture the tumor tissue actionable mutations from 161 patients with ESCC. Based on these mutations and relative pathways in eight PDCs, 46 targeted drugs are selected for screening. Interestingly, some drug and biomarker relationships are established that were not discovered in the CCLE project. For example, CDKN2A or CDKN2B loss is significantly associated with the sensitivity of CDK4/6 inhibitors. Furthermore, both PDC xenografts and patient-derived xenografts confirm CDKN2A/2B loss as a biomarker predictive of CDK4/6 inhibitor sensitivity. Collectively, patient-derived models could predict targeted drug sensitivity associated with actionable mutations in ESCC. Predicting the drug response of patients with cancer is crucial for implementing targeted therapy. Here, Su et al. make patient-derived cell lines and perform targeted sequencing and RNA-seq to identify CDKN2A/2B loss as a predictor of response to CDK4/6 inhibitors in esophageal squamous cell carcinoma.
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Affiliation(s)
- Dan Su
- Institute of Cancer and Basic Medicine (ICBM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China. .,Department of Pathology, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, Zhejiang, China. .,Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China.
| | - Dadong Zhang
- Research and Development Institute of Precision Medicine, 3D Medicines Inc., Shanghai, China
| | - Jiaoyue Jin
- Department of Pathology, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, Zhejiang, China.,Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China
| | - Lisha Ying
- Institute of Cancer and Basic Medicine (ICBM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China.,Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China.,Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Miao Han
- Research and Development Institute of Precision Medicine, 3D Medicines Inc., Shanghai, China
| | - Kaiyan Chen
- Department of Chemotherapy, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Bin Li
- Research and Development Institute of Precision Medicine, 3D Medicines Inc., Shanghai, China
| | - Junzhou Wu
- Institute of Cancer and Basic Medicine (ICBM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China.,Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China.,Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Zhenghua Xie
- Research and Development Institute of Precision Medicine, 3D Medicines Inc., Shanghai, China
| | - Fanrong Zhang
- Department of Breast Surgery, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Yihui Lin
- Research and Development Institute of Precision Medicine, 3D Medicines Inc., Shanghai, China
| | - Guoping Cheng
- Department of Pathology, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Jing-Yu Li
- Research and Development Institute of Precision Medicine, 3D Medicines Inc., Shanghai, China
| | - Minran Huang
- Institute of Cancer and Basic Medicine (ICBM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China.,Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China.,Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Jinchao Wang
- Research and Development Institute of Precision Medicine, 3D Medicines Inc., Shanghai, China
| | - Kailai Wang
- Institute of Cancer and Basic Medicine (ICBM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Jianjun Zhang
- Department of Genomic Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Fugen Li
- Research and Development Institute of Precision Medicine, 3D Medicines Inc., Shanghai, China
| | - Lei Xiong
- Research and Development Institute of Precision Medicine, 3D Medicines Inc., Shanghai, China
| | - Andrew Futreal
- Department of Genomic Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,Honorary Faculty, Wellcome Trust Sanger Institute, Hinxton, UK
| | - Weimin Mao
- Institute of Cancer and Basic Medicine (ICBM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China. .,Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China. .,Department of Thoracic Surgery, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, Zhejiang, China.
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826
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O’Reilly EM, Hechtman JF. Tumour response to TRK inhibition in a patient with pancreatic adenocarcinoma harbouring an NTRK gene fusion. Ann Oncol 2019; 30:viii36-viii40. [PMID: 31605106 PMCID: PMC6859823 DOI: 10.1093/annonc/mdz385] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Although rare, NTRK gene fusions are known to be oncogenic drivers in pancreatic ductal adenocarcinoma (PDAC). We report the response of a metastatic CTRC-NTRK1 gene fusion-positive PDAC to targeted treatment with the oral tropomyosin receptor kinase (TRK) inhibitor larotrectinib and the eventual development of resistance to treatment. PATIENT, METHODS AND RESULTS A 61-year-old woman presented with a 2.5-cm mass in the body of the pancreas and a 1.2-cm liver lesion on routine follow-up for endometrial cancer that was in complete remission. Liver biopsy confirmed a primary PDAC unrelated to the endometrial cancer. The patient was treated with gemcitabine, nab-paclitaxel and ADI-PEG 20 for 12 months until disease progression and toxicity emerged [best overall response (BOR): partial response (PR)]. The patient switched to a modified regimen of folinic acid, fluorouracil, irinotecan and oxaliplatin for 4 months until neuropathy occurred. Oxaliplatin was withheld until disease progression 6 months later (BOR: stable disease). Despite recommencing oxaliplatin, the disease continued to progress. At this time, somatic profiling of the liver lesion revealed a CTRC-NTRK1 gene fusion. Treatment with larotrectinib 100 mg twice daily was commenced with BOR of PR at 2 months. The patient progressed after 6 months and was re-biopsied. Treatment was switched to the investigational next-generation TRK inhibitor selitrectinib (BAY 2731954, LOXO-195) 100 mg twice daily. After 2 months, the disease progressed and dabrafenibtrametinib combination therapy was initiated due to existence of a BRAF-V600E mutation. However, the cancer continued to progress and the patient died 2 months later. CONCLUSIONS Targeted TRK inhibition with larotrectinib in PDAC harbouring a CTRC-NTRK1 gene fusion is well tolerated and can improve quality of life for the patient. However, acquired resistance to therapy can emerge in some patients. Next-generation TRK inhibitors such as selitrectinib are currently in development to overcome this resistance (NCT02576431; NCT03215511).
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Affiliation(s)
- E M O’Reilly
- Memorial Sloan Kettering Cancer Center, New York, USA
| | - J F Hechtman
- Memorial Sloan Kettering Cancer Center, New York, USA
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827
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Wilding CP, Elms ML, Judson I, Tan AC, Jones RL, Huang PH. The landscape of tyrosine kinase inhibitors in sarcomas: looking beyond pazopanib. Expert Rev Anticancer Ther 2019; 19:971-991. [PMID: 31665941 PMCID: PMC6882314 DOI: 10.1080/14737140.2019.1686979] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 10/28/2019] [Indexed: 02/06/2023]
Abstract
Introduction: Tyrosine kinases are key mediators of intracellular signaling cascades and aberrations in these proteins have been implicated in driving oncogenesis through the dysregulation of fundamental cellular processes including proliferation, migration, and apoptosis. As such, targeting these proteins with small molecule tyrosine kinase inhibitors (TKI) has led to significant advances in the treatment of a number of cancer types.Areas covered: Soft tissue sarcomas (STS) are a heterogeneous and challenging group of rare cancers to treat, but the approval of the TKI pazopanib for the treatment of advanced STS demonstrates that this class of drugs may have broad utility against a range of different sarcoma histological subtypes. Since the approval of pazopanib, a number of other TKIs have entered clinical trials to evaluate whether their activity in STS matches the promising results seen in other solid tumors. In this article, we review the emerging role of TKIs in the evolving landscape of sarcoma treatment.Expert opinion: As our biological understanding of response and resistance of STS to TKIs advances, we anticipate that patient management will move away from a 'one size fits all' paradigm toward personalized, multi-line, and patient-specific treatment regimens where patients are treated according to the underlying biology and genetics of their specific disease.
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Affiliation(s)
| | - Mark L Elms
- Division of Molecular Pathology, The Institute of Cancer Research, London, UK
| | - Ian Judson
- Department of Medical Oncology, Sarcoma Unit, The Royal Marsden Hospital, London, UK
| | - Aik-Choon Tan
- Department of Biostatistics and Bioinformatics, Moffitt Cancer Center, Tampa, FL, USA
| | - Robin L Jones
- Department of Medical Oncology, Sarcoma Unit, The Royal Marsden Hospital, London, UK
| | - Paul H Huang
- Division of Molecular Pathology, The Institute of Cancer Research, London, UK
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828
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Abstract
TRK fusions are oncogenic drivers of various adult and paediatric cancers. The first-generation TRK inhibitors, larotrectinib and entrectinib, were granted landmark, tumour-agnostic regulatory approvals for the treatment of these cancers in 2018 and 2019, respectively. Brisk and durable responses are achieved with these drugs in patients, including those with locally advanced or metastatic disease. In addition, intracranial activity has been observed with both agents in TRK fusion-positive solid tumours with brain metastases and primary brain tumours. While resistance to first-generation TRK inhibition can eventually occur, next-generation agents such as selitrectinib (BAY 2731954, LOXO-195) and repotrectinib were designed to address on-target resistance, which is mediated by emergent kinase domain mutations, such as those that result in substitutions at solvent front or gatekeeper residues. These next-generation drugs are currently available in the clinic and proof-of-concept responses have been reported. This underscores the utility of sequential TRK inhibitor use in select patients, a paradigm that parallels the use of targeted therapies in other oncogenic driver-positive cancers, such as ALK fusion-positive lung cancers. While TRK inhibitors have a favourable overall safety profile, select on-target adverse events, including weight gain, dizziness/ataxia and paraesthesias, are occasionally observed and should be monitored in the clinic. These side-effects are likely consequences of the inhibition of the TRK pathway that is involved in the development and maintenance of the nervous system.
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Affiliation(s)
- A Drilon
- Memorial Sloan Kettering Cancer Center, New York
- Weill Cornell Medical College, New York, USA
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829
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Amatu A, Sartore-Bianchi A, Bencardino K, Pizzutilo EG, Tosi F, Siena S. Tropomyosin receptor kinase (TRK) biology and the role of NTRK gene fusions in cancer. Ann Oncol 2019; 30:viii5-viii15. [PMID: 31738427 PMCID: PMC6859819 DOI: 10.1093/annonc/mdz383] [Citation(s) in RCA: 144] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The tropomyosin receptor kinase (TRK) family of receptor tyrosine kinases are encoded by NTRK genes and have a role in the development and normal functioning of the nervous system. Since the discovery of an oncogenic NTRK gene fusion in colorectal cancer in 1986, over 80 different fusion partner genes have been identified in a wide array of adult and paediatric tumours, providing actionable targets for targeted therapy. This review describes the normal function and physiology of TRK receptors and the biology behind NTRK gene fusions and how they act as oncogenic drivers in cancer. Finally, an overview of the incidence and prevalence of NTRK gene fusions in various types of cancers is discussed.
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Affiliation(s)
- A Amatu
- Department of Hematology and Oncology, Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, Milan
| | - A Sartore-Bianchi
- Department of Hematology and Oncology, Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, Milan
- Department of Oncology and Hemato- Oncology, Università degli Studi di Milano, Milan, Italy
| | - K Bencardino
- Department of Hematology and Oncology, Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, Milan
| | - E G Pizzutilo
- Department of Hematology and Oncology, Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, Milan
- Department of Oncology and Hemato- Oncology, Università degli Studi di Milano, Milan, Italy
| | - F Tosi
- Department of Hematology and Oncology, Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, Milan
- Department of Oncology and Hemato- Oncology, Università degli Studi di Milano, Milan, Italy
| | - S Siena
- Department of Hematology and Oncology, Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, Milan
- Department of Oncology and Hemato- Oncology, Università degli Studi di Milano, Milan, Italy
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830
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Zhu VW, Klempner SJ, Ou SHI. Receptor Tyrosine Kinase Fusions as an Actionable Resistance Mechanism to EGFR TKIs in EGFR-Mutant Non-Small-Cell Lung Cancer. Trends Cancer 2019; 5:677-692. [DOI: 10.1016/j.trecan.2019.09.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 09/14/2019] [Accepted: 09/26/2019] [Indexed: 02/06/2023]
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831
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Parmar A, Chan KKW, Ko YJ. Metastatic colorectal cancer: therapeutic options for treating refractory disease. ACTA ACUST UNITED AC 2019; 26:S24-S32. [PMID: 31819707 DOI: 10.3747/co.26.5575] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Therapeutic options for chemorefractory metastatic colorectal cancer (mcrc) have significantly expanded since 2009. The oral targeted therapies regorafenib and trifluridine/tipiracil have been established to be efficacious and safe in patients with mcrc who have progressed beyond 2 or more lines of chemotherapy. Evidence for the use of immunotherapy in a subgroup of this patient population is also encouraging, particularly in patients with mcrc that exhibits high microsatellite instability or deficient mismatch repair. Those significant advances have led to Health Canada approval of 3 novel therapeutic options for the treatment of patients with chemorefractory mcrc. However, the limited clinical efficacy of those treatments underscores the need for ongoing development of systemic therapy options for this unique cohort of patients. Here, we review the current and emerging treatment landscape for chemorefractory mcrc.
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Affiliation(s)
- A Parmar
- Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON
| | - K K W Chan
- Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON.,Canadian Centre for Applied Research in Cancer Control, Toronto, ON
| | - Y J Ko
- Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON
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832
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Pagani F, Randon G, Guarini V, Raimondi A, Prisciandaro M, Lobefaro R, Di Bartolomeo M, Sozzi G, de Braud F, Gasparini P, Pietrantonio F. The Landscape of Actionable Gene Fusions in Colorectal Cancer. Int J Mol Sci 2019; 20:ijms20215319. [PMID: 31731495 PMCID: PMC6861915 DOI: 10.3390/ijms20215319] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/23/2019] [Accepted: 10/23/2019] [Indexed: 02/06/2023] Open
Abstract
The treatment scenario of metastatic colorectal cancer (mCRC) has been rapidly enriched with new chemotherapy combinations and biological agents that lead to a remarkable improvement in patients’ outcome. Kinase gene fusions account for less than 1% of mCRC overall but are enriched in patients with high microsatellite instability, RAS/BRAF wild-type colorectal cancer. mCRC patients harboring such alterations show a poor prognosis with standard treatments that could be reversed by adopting novel therapeutic strategies. Moving forward to a positive selection of mCRC patients suitable for targeted therapy in the era of personalized medicine, actionable gene fusions, although rare, represent a peculiar opportunity to disrupt a tumor alteration to achieve therapeutic goal. Here we summarize the current knowledge on potentially actionable gene fusions in colorectal cancer available from retrospective experiences and promising preliminary results of new basket trials.
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Affiliation(s)
- Filippo Pagani
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milano, Italy; (F.P.); (G.R.); (V.G.); (A.R.); (M.P.); (R.L.); (M.D.B.); (F.d.B.)
| | - Giovanni Randon
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milano, Italy; (F.P.); (G.R.); (V.G.); (A.R.); (M.P.); (R.L.); (M.D.B.); (F.d.B.)
| | - Vincenzo Guarini
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milano, Italy; (F.P.); (G.R.); (V.G.); (A.R.); (M.P.); (R.L.); (M.D.B.); (F.d.B.)
| | - Alessandra Raimondi
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milano, Italy; (F.P.); (G.R.); (V.G.); (A.R.); (M.P.); (R.L.); (M.D.B.); (F.d.B.)
| | - Michele Prisciandaro
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milano, Italy; (F.P.); (G.R.); (V.G.); (A.R.); (M.P.); (R.L.); (M.D.B.); (F.d.B.)
| | - Riccardo Lobefaro
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milano, Italy; (F.P.); (G.R.); (V.G.); (A.R.); (M.P.); (R.L.); (M.D.B.); (F.d.B.)
| | - Maria Di Bartolomeo
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milano, Italy; (F.P.); (G.R.); (V.G.); (A.R.); (M.P.); (R.L.); (M.D.B.); (F.d.B.)
| | - Gabriella Sozzi
- Unit of Molecular Cytogenetics, Fondazione IRCCS Istituto Nazionale Tumori, 20133 Milano, Italy; (G.S.); (P.G.)
| | - Filippo de Braud
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milano, Italy; (F.P.); (G.R.); (V.G.); (A.R.); (M.P.); (R.L.); (M.D.B.); (F.d.B.)
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy
| | - Patrizia Gasparini
- Unit of Molecular Cytogenetics, Fondazione IRCCS Istituto Nazionale Tumori, 20133 Milano, Italy; (G.S.); (P.G.)
| | - Filippo Pietrantonio
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milano, Italy; (F.P.); (G.R.); (V.G.); (A.R.); (M.P.); (R.L.); (M.D.B.); (F.d.B.)
- Department of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy
- Correspondence:
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833
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Schroader B, Kong S, Anderson S, Williamson T, Sireci A, Shields K. Current status of biomarker testing in historically rare, high-unmet-need tumors: soft tissue sarcomas and thyroid cancers. Expert Rev Anticancer Ther 2019; 19:929-938. [DOI: 10.1080/14737140.2019.1682554] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
| | - Sheldon Kong
- US Medical Affairs, Bayer HealthCare, Whippany, NJ, USA
| | | | | | | | - Kasia Shields
- Oncology Medical Communications, Xcenda, LLC, Palm Harbor, FL, USA
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834
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Cappabianca L, Guadagni S, Maccarone R, Sebastiano M, Chiominto A, Farina AR, Mackay AR. A pilot study of alternative TrkAIII splicing in Merkel cell carcinoma: a potential oncogenic mechanism and novel therapeutic target. J Exp Clin Cancer Res 2019; 38:424. [PMID: 31640749 PMCID: PMC6805356 DOI: 10.1186/s13046-019-1425-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 09/16/2019] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Merkel cell carcinomas (MCCs) are rare, aggressive, therapeutically-challenging skin tumours that are increasing in incidence and have poor survival rates. The majority are caused by genomic Merkel cell polyomavirus (MCPyV) integration and MCPyV T-antigen expression. Recently, a potential oncogenic role for the tropomyosin-related tyrosine kinase A receptor (TrkA) has been proposed in MCC. Alternative TrkAIII splicing is a TrkA oncogenic activation mechanism that can be promoted by SV40 large T-antigen, an analogue of MCPyV large T-antigen. In this pilot study, therefore, we have evaluated TrkAIII splicing as a novel potential oncogenic mechanism and therapeutic target in MCPyV positive MCC. METHODS Formalin-fixed paraffin-embedded MCC tissues, consisting of 10 stage IV, 1 stage IIIB, 1 stage IIB, 4 stage IIA and 2 stage I tumours, from patients diagnosed and treated from September 2006 to March, 2019, at the University of L'Aquila, L'Aquila, Italy, were compared to 3 primary basal cell carcinomas (BCCs), 3 primary squamous cell carcinomas (SCCs) and 2 normal skin samples by RT-PCR for MCPyV large T-antigen, small T-antigen, VP-1 expression and alternative TrkAIII splicing and by indirect IF for evidence of intracellular TrkA isoform expression and activation. RESULTS 9 of 10 Recurrent stage IV MCCs were from patients (P.1-3) treated with surgery plus loco-regional Melphalan chemotherapy and remaining MMCs, including 1 stage IV tumour, were from patients treated with surgery alone (P. 4-11). All MCPyV positive MCCs exhibiting MCPyV large T-antigen expression (17 of 18MCCs, 90%) exhibited alternative TrkAIII mRNA splicing (100%), which was exclusive in a significant number and predominant (> 50%) in all stage IV MCCs and the majority of stage 1-III MCCs. MCCs with higher TrkAIII to 18S rRNA expression ratios also exhibited strong or intermediate immunoreactivity to anti-TrkA antibodies, consistent with cytoplasmic TrkAIII expression and activation. In contrast, the MCPyV negative MCC, BCCs, SCCs and normal skin tissues all exhibited exclusive fully-spliced TrkA mRNA expression, associated with variable immunoreactivity for non-phosphorylated but not phosphorylated TrkA. CONCLUSIONS MCPyV positive MCCs but not MCPyV negative MCC, BCCs and SCCs exhibit predominant alternative TrkAIII splicing, with evidence of intracellular TrkAIII activation. This establishes a new potential MCC subset, unveils a novel potential MCPyV oncogenic mechanism and identifies TrkAIII as a novel potential therapeutic target in MCPyV positive MCC.
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Affiliation(s)
- Lucia Cappabianca
- Department of Applied Clinical and Biotechnological Sciences, University of L’Aquila, 67100 L’Aquila, Italy
| | - Stefano Guadagni
- Department of Applied Clinical and Biotechnological Sciences, University of L’Aquila, 67100 L’Aquila, Italy
| | - Rita Maccarone
- Department of Applied Clinical and Biotechnological Sciences, University of L’Aquila, 67100 L’Aquila, Italy
| | - Michela Sebastiano
- Department of Applied Clinical and Biotechnological Sciences, University of L’Aquila, 67100 L’Aquila, Italy
| | | | - Antonietta Rosella Farina
- Department of Applied Clinical and Biotechnological Sciences, University of L’Aquila, 67100 L’Aquila, Italy
| | - Andrew Reay Mackay
- Department of Applied Clinical and Biotechnological Sciences, University of L’Aquila, 67100 L’Aquila, Italy
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835
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Powers MP. The ever-changing world of gene fusions in cancer: a secondary gene fusion and progression. Oncogene 2019; 38:7197-7199. [DOI: 10.1038/s41388-019-1057-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 09/30/2019] [Accepted: 10/02/2019] [Indexed: 11/09/2022]
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836
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Advances and challenges in precision medicine in salivary gland cancer. Cancer Treat Rev 2019; 80:101906. [PMID: 31644971 DOI: 10.1016/j.ctrv.2019.101906] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/11/2019] [Accepted: 10/07/2019] [Indexed: 12/13/2022]
Abstract
Salivary gland cancer (SGC) is a rare malignancy consisting of 22 subtypes with different genetic, histological and clinical characteristics. This rarity and heterogeneity makes systemic treatment of recurrent or metastatic (R/M) disease challenging. Use of chemotherapy is scarcely studied and chemotherapy at best has moderate effects. New therapeutic strategies are therefore warranted, but advances made in SGC are lagging behind on advances made in more common cancers. By unraveling tumor characteristics of SGC, such as genetic alterations and protein expression profiles, therapeutic strategies tailored to the patient's tumor can be rationalized. This genomic profiling and mapping of immunohistochemical expression profiles is essential in the search for a suitable treatment approach. Thereby, it alleviates the paucity in systemic treatment options and can significantly alter the prognosis of patients with R/M SGC. This review aims to give a comprehensive overview of known genetic alterations and expression profiles amenable for targeted therapy in every histological subtype of SGC. We discuss the remaining knowledge gaps and the implications of these targets for future studies and personalized treatments, thereby aiding clinicians faced with this rare and heterogeneous type of cancer.
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837
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Futami T, Kawase T, Mori K, Asaumi M, Kihara R, Shindoh N, Kuromitsu S. Identification of a novel oncogenic mutation of FGFR4 in gastric cancer. Sci Rep 2019; 9:14627. [PMID: 31601997 PMCID: PMC6787178 DOI: 10.1038/s41598-019-51217-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 09/27/2019] [Indexed: 12/21/2022] Open
Abstract
Gastric cancer remains one of the leading causes of cancer death worldwide. Despite intensive investigations of treatments over the past three decades, the poor prognosis of patients with unresectable advanced or recurrent gastric cancer has not significantly changed, and improved therapies are required. Here, we report the identification of an oncogenic mutation in FGFR4 in a human gastric tumour that leads to constitutive activation of its product, FGFR4. The G636C-FGFR4 tyrosine kinase domain mutation was found in 1 of 83 primary human gastric tumours. The G636C mutation increased FGFR4 autophosphorylation, and activated FGFR4 downstream signalling molecules and enhanced anchorage-independent cell growth when expressed in NIH/3T3 cells. 3D-structural analysis and modelling of FGFR4 suggest that G636C destabilizes an auto-inhibitory conformation and stabilizes an active conformation, leading to increased kinase activation. Ba/F3 cell lines expressing the G636C-FGFR4 mutant were significantly more sensitive to ASP5878, a selective FGFR inhibitor, than the control. Oral administration of ASP5878 significantly inhibited the growth of tumours in mice engrafted with G636C-FGFR4/3T3 cells. Together, our results demonstrate that mutationally activated FGFR4 acts as an oncoprotein. These findings support the therapeutic targeting of FGFR4 in gastric cancer.
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Affiliation(s)
- Takashi Futami
- Drug Discovery Research, Astellas Pharma Inc., Ibaraki, Japan.
| | - Tatsuya Kawase
- Drug Discovery Research, Astellas Pharma Inc., Ibaraki, Japan
| | - Kenichi Mori
- Drug Discovery Research, Astellas Pharma Inc., Ibaraki, Japan
| | - Makoto Asaumi
- Drug Discovery Research, Astellas Pharma Inc., Ibaraki, Japan
| | - Rumi Kihara
- Drug Discovery Research, Astellas Pharma Inc., Ibaraki, Japan
| | - Nobuaki Shindoh
- Drug Discovery Research, Astellas Pharma Inc., Ibaraki, Japan
| | - Sadao Kuromitsu
- Drug Discovery Research, Astellas Pharma Inc., Ibaraki, Japan
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838
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Evidence of NTRK1 Fusion as Resistance Mechanism to EGFR TKI in EGFR+ NSCLC: Results From a Large-Scale Survey of NTRK1 Fusions in Chinese Patients With Lung Cancer. Clin Lung Cancer 2019; 21:247-254. [PMID: 31761448 DOI: 10.1016/j.cllc.2019.09.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 07/22/2019] [Accepted: 09/16/2019] [Indexed: 01/11/2023]
Abstract
BACKGROUND Neurotrophin receptor kinase (NTRK) gene fusions (NTRK+) are rare but actionable oncogenic drivers present in a wide variety of solid tumors. However, the clinicopathologic characteristics of NTRK1 fusion-positive non-small-cell lung cancer are largely unknown. MATERIALS AND METHODS Lung cancer tissue specimens and/or circulating cell-free DNA from patients with lung cancer who had undergone molecular profiling at a Clinical Laboratory Improvement Amendments (CLIA)-certified genomics laboratory in China were retrospectively reviewed. The laboratory performed NTRK1 fusion detection using hybridization-based targeted next-generation sequencing. The patients' clinical characteristics and treatment history were retrieved from the database for further evaluation. RESULTS A total of 21,155 Chinese lung cancer cases had undergone molecular profiling from April 2016 to March 2019, including 13,630 adenocarcinoma cases. Of these cases, 12 were positive for NTRK1 fusion, including 10 cases of adenocarcinoma (0.073%), 1 primary sarcomatoid carcinoma, and 1 with an unknown histologic classification. Seven fusion partners (CD74, interferon regulatory factor 2 binding protein 2 [IRF2BP2], lamin A/C [LMNA], PHD finger protein 20 [PHF20], sequestosome 1 [SQSTM1], tropomyosin 3 [TPM3], TPR) were identified. Additionally, 1 unique rearrangement occurred upstream of the transcription start site of BCL9 fused to exon 12 of NTRK1 (intragenic region, BCL9-NTRK1). Of the 12 cases of NTRK1+ lung cancer, 6 had had concurrent activating EGFR mutations and/or had received previous treatment with EGFR tyrosine kinase inhibitors (TKIs), with 2 having concurrent EGFR T790M and 1 additional EGFR C797S. CONCLUSIONS NTRK1+ lung cancer cases are extremely rare with multiple fusion partners. Additionally, emergence of NTRK1+ fusion might act as a resistance mechanism to EGFR TKIs. When performing comprehensive analysis of acquired resistance to EGFR TKIs, the ability to detect NTRK1 fusions will be important.
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839
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Joshi SK, Davare MA, Druker BJ, Tognon CE. Revisiting NTRKs as an emerging oncogene in hematological malignancies. Leukemia 2019; 33:2563-2574. [PMID: 31551508 PMCID: PMC7410820 DOI: 10.1038/s41375-019-0576-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 06/18/2019] [Indexed: 12/17/2022]
Abstract
NTRK fusions are dominant oncogenic drivers found in rare solid tumors. These fusions have also been identified in more common cancers, such as lung and colorectal carcinomas, albeit at low frequencies. Patients harboring these fusions demonstrate significant clinical response to inhibitors such as entrectinib and larotrectinib. Although current trials have focused entirely on solid tumors, there is evidence supporting the use of these drugs for patients with leukemia. To assess the broader applicability for Trk inhibitors in hematological malignancies, this review describes the current state of knowledge about alterations in the NTRK family in these disorders. We present these findings in relation to the discovery and therapeutic targeting of BCR–ABL1 in chronic myeloid leukemia. The advent of deep sequencing technologies has shown that NTRK fusions and somatic mutations are present in a variety of hematologic malignancies. Efficacy of Trk inhibitors has been demonstrated in NTRK-fusion positive human leukemia cell lines and patient-derived xenograft studies, highlighting the potential clinical utility of these inhibitors for a subset of leukemia patients.
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Affiliation(s)
- Sunil K Joshi
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, United States.,Department of Physiology & Pharmacology, School of Medicine, Oregon Health & Science University, Portland, OR, United States.,Division of Hematology & Medical Oncology, Department of Medicine, Oregon Health & Science University, Portland, OR, United States
| | - Monika A Davare
- Papé Pediatric Research Institute, Oregon Health & Science University, Portland, OR, United States.,Division of Pediatric Hematology & Oncology, Department of Pediatrics, Oregon Health & Science University, Portland, OR, United States
| | - Brian J Druker
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, United States. .,Division of Hematology & Medical Oncology, Department of Medicine, Oregon Health & Science University, Portland, OR, United States. .,Howard Hughes Medical Institute, Oregon Health & Science University, Portland, OR, United States.
| | - Cristina E Tognon
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, United States. .,Division of Hematology & Medical Oncology, Department of Medicine, Oregon Health & Science University, Portland, OR, United States. .,Howard Hughes Medical Institute, Oregon Health & Science University, Portland, OR, United States.
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840
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Molecular Alterations in Thyroid Cancer: From Bench to Clinical Practice. Genes (Basel) 2019; 10:genes10090709. [PMID: 31540307 PMCID: PMC6771012 DOI: 10.3390/genes10090709] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/26/2019] [Accepted: 09/10/2019] [Indexed: 12/11/2022] Open
Abstract
Thyroid cancer comprises different clinical and histological entities. Whereas differentiated (DTCs) malignancies are sensitive to radioiodine therapy, anaplastic (ATCs) and medullary (MTCs) tumors do not uptake radioactive iodine and display aggressive features associated with a poor prognosis. Moreover, in a majority of DTCs, disease evolution leads to the progressive loss of iodine sensitivity. Hence, iodine-refractory DTCs, along with ATCs and MTCs, require alternative treatments reflective of their different tumor biology. In the last decade, the molecular mechanisms promoting thyroid cancer development and progression have been extensively studied. This has led to a better understanding of the genomic landscape, displayed by thyroid malignancies, and to the identification of novel therapeutic targets. Indeed, several pharmacological compounds have been developed for iodine-refractory tumors, with four multi-target tyrosine kinase inhibitors already available for DTCs (sorafenib and lenvatinib) and MTCs (cabozantib and vandetanib), and a plethora of drugs currently being evaluated in clinical trials. In this review, we will describe the genomic alterations and biological processes intertwined with thyroid cancer development, also providing a thorough overview of targeted drugs already tested or under investigation for these tumors. Furthermore, given the existing preclinical evidence, we will briefly discuss the potential role of immunotherapy as an additional therapeutic strategy for the treatment of thyroid cancer.
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841
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Subramanian G, Zhu Y, Bowen SJ, Roush N, White JA, Huczek D, Zachary T, Javens C, Williams T, Janssen A, Gonzales A. Lead identification and characterization of hTrkA type 2 inhibitors. Bioorg Med Chem Lett 2019; 29:126680. [PMID: 31610943 DOI: 10.1016/j.bmcl.2019.126680] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 09/08/2019] [Accepted: 09/09/2019] [Indexed: 12/26/2022]
Abstract
Virtual in silico structure-guided modeling, followed by in vitro biochemical screening of a subset of commercially purchasable compound collection resulted in the identification of several human tropomyosin receptor kinase A (hTrkA) inhibitors that bind the orthosteric ATP site and exhibit binding preference for the inactive kinase conformation. The type 2 binding mode with the DFG-out and αC-helix out hTrkA kinase domain conformation was confirmed from X-ray crystallographic solution of a representative inhibitor analog, 1b. Additional hTrkA and hTrkB (selectivity) assays in recombinant cells, neurite outgrowth inhibition using rat PC12 cells, early ADME profiling, and preliminary pharmacokinetic evaluation in rodents guided the lead inhibitor progression in the discovery screening funnel.
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Affiliation(s)
- Govindan Subramanian
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA.
| | - Yaqi Zhu
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
| | - Scott J Bowen
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
| | - Nicole Roush
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
| | - Julie A White
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
| | - Dennis Huczek
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
| | - Theresa Zachary
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
| | - Christopher Javens
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
| | - Tracey Williams
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
| | - Ann Janssen
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
| | - Andrea Gonzales
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
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842
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Heinzen D, Divé I, Lorenz NI, Luger AL, Steinbach JP, Ronellenfitsch MW. Second Generation mTOR Inhibitors as a Double-Edged Sword in Malignant Glioma Treatment. Int J Mol Sci 2019; 20:ijms20184474. [PMID: 31510109 PMCID: PMC6770420 DOI: 10.3390/ijms20184474] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 08/21/2019] [Accepted: 09/08/2019] [Indexed: 12/27/2022] Open
Abstract
Glioblastomas (GBs) frequently display activation of the epidermal growth factor receptor (EGFR) and mammalian target of rapamycin (mTOR). mTOR exists as part of two multiprotein complexes, mTOR complex 1 (mTORC1) and 2 (mTORC2). In GBs, mTORC1 inhibitors such as rapamycin have performed poorly in clinical trials, and in vitro protect GB cells from nutrient and oxygen deprivation. Next generation ATP-competitive mTOR inhibitors with affinity for both mTOR complexes have been developed, but data exploring their effects on GB metabolism are scarce. In this study, we compared the ATP-competitive mTORC1/2 inhibitors torin2, INK-128 and NVP-Bez235 to the allosteric mTORC1 inhibitor rapamycin under conditions that mimic the glioma microenvironment. In addition to inhibiting mTORC2 signaling, INK-128 and NVP-Bez235 more effectively blocked mTORC1 signaling and prompted a stronger cell growth inhibition, partly by inducing cell cycle arrest. However, under hypoxic and nutrient-poor conditions mTORC1/2 inhibitors displayed even stronger cytoprotective effects than rapamycin by reducing oxygen and glucose consumption. Thus, therapies that arrest proliferation and inhibit anabolic metabolism must be expected to improve energy homeostasis of tumor cells. These results mandate caution when treating physiologically or therapeutically induced hypoxic GBs with mTOR inhibitors.
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Affiliation(s)
- Dennis Heinzen
- Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Schleusenweg 2-16, 60528 Frankfurt am Main, Germany.
| | - Iris Divé
- Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Schleusenweg 2-16, 60528 Frankfurt am Main, Germany.
- University Cancer Center Frankfurt (UCT), University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.
| | - Nadja I Lorenz
- Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Schleusenweg 2-16, 60528 Frankfurt am Main, Germany.
- University Cancer Center Frankfurt (UCT), University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.
| | - Anna-Luisa Luger
- Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Schleusenweg 2-16, 60528 Frankfurt am Main, Germany.
- University Cancer Center Frankfurt (UCT), University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.
| | - Joachim P Steinbach
- Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Schleusenweg 2-16, 60528 Frankfurt am Main, Germany.
- University Cancer Center Frankfurt (UCT), University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.
- Frankfurt Cancer Institute (FCI), University Hospital Frankfurt, Paul-Ehrlich-Straße 42-44, 60596 Frankfurt am Main, Germany.
| | - Michael W Ronellenfitsch
- Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Schleusenweg 2-16, 60528 Frankfurt am Main, Germany.
- University Cancer Center Frankfurt (UCT), University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.
- Frankfurt Cancer Institute (FCI), University Hospital Frankfurt, Paul-Ehrlich-Straße 42-44, 60596 Frankfurt am Main, Germany.
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843
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Federman N, McDermott R. Larotrectinib, a highly selective tropomyosin receptor kinase (TRK) inhibitor for the treatment of TRK fusion cancer. Expert Rev Clin Pharmacol 2019; 12:931-939. [DOI: 10.1080/17512433.2019.1661775] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Noah Federman
- Department of Pediatrics and Orthopedics, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Ray McDermott
- Department of Medical Oncology, St. Vincent’s University Hospital & University College Dublin, Dublin, Ireland
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844
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Chang F, Lin F, Cao K, Surrey LF, Aplenc R, Bagatell R, Resnick AC, Santi M, Storm PB, Tasian SK, Waanders AJ, Hunger SP, Li MM. Development and Clinical Validation of a Large Fusion Gene Panel for Pediatric Cancers. J Mol Diagn 2019; 21:873-883. [PMID: 31255796 PMCID: PMC6734859 DOI: 10.1016/j.jmoldx.2019.05.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 04/30/2019] [Accepted: 05/16/2019] [Indexed: 12/12/2022] Open
Abstract
Gene fusions are one of the most common genomic alterations in pediatric cancer. Many fusions encode oncogenic drivers and play important roles in cancer diagnosis, risk stratification, and treatment selection. We report the development and clinical validation of a large custom-designed RNA sequencing panel, CHOP Fusion panel, using anchored multiplex PCR technology. The panel interrogates 106 cancer genes known to be involved in nearly 600 different fusions reported in hematological malignancies and solid tumors. The panel works well with different types of samples, including formalin-fixed, paraffin-embedded samples. The panel demonstrated excellent analytic accuracy, with 100% sensitivity and specificity on 60 pediatric tumor validation samples. In addition to identifying all known fusions in the validation samples, three unrecognized, yet clinically significant, fusions were also detected. A total of 276 clinical cases were analyzed after the validation, and 51 different fusions were identified in 104 cases. Of these fusions, 16 were not previously reported at the time of discovery. These fusions provided genomic information useful for clinical management. Our experience demonstrates that CHOP Fusion panel can detect the vast majority of known and certain novel clinically relevant fusion genes in pediatric cancers accurately, efficiently, and cost-effectively; and the panel provides an excellent tool for new fusion gene discovery.
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Affiliation(s)
- Fengqi Chang
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania; Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Fumin Lin
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Kajia Cao
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Lea F Surrey
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania; Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Richard Aplenc
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Rochelle Bagatell
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Adam C Resnick
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania; Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Mariarita Santi
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania; Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Phillip B Storm
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Sarah K Tasian
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Angela J Waanders
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Stephen P Hunger
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Marilyn M Li
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania; Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
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845
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Marchiò C, Scaltriti M, Ladanyi M, Iafrate AJ, Bibeau F, Dietel M, Hechtman JF, Troiani T, López-Rios F, Douillard JY, Andrè F, Reis-Filho JS. ESMO recommendations on the standard methods to detect NTRK fusions in daily practice and clinical research. Ann Oncol 2019; 30:1417-1427. [PMID: 31268127 DOI: 10.1093/annonc/mdz204] [Citation(s) in RCA: 244] [Impact Index Per Article: 48.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND NTRK1, NTRK2 and NTRK3 fusions are present in a plethora of malignancies across different histologies. These fusions represent the most frequent mechanism of oncogenic activation of these receptor tyrosine kinases, and biomarkers for the use of TRK small molecule inhibitors. Given the varying frequency of NTRK1/2/3 fusions, crucial to the administration of NTRK inhibitors is the development of optimal approaches for the detection of human cancers harbouring activating NTRK1/2/3 fusion genes. MATERIALS AND METHODS Experts from several Institutions were recruited by the European Society for Medical Oncology (ESMO) Translational Research and Precision Medicine Working Group (TR and PM WG) to review the available methods for the detection of NTRK gene fusions, their potential applications, and strategies for the implementation of a rational approach for the detection of NTRK1/2/3 fusion genes in human malignancies. A consensus on the most reasonable strategy to adopt when screening for NTRK fusions in oncologic patients was sought, and further reviewed and approved by the ESMO TR and PM WG and the ESMO leadership. RESULTS The main techniques employed for NTRK fusion gene detection include immunohistochemistry, fluorescence in situ hybridization (FISH), RT-PCR, and both RNA-based and DNA-based next generation sequencing (NGS). Each technique has advantages and limitations, and the choice of assays for screening and final diagnosis should also take into account the resources and clinical context. CONCLUSION In tumours where NTRK fusions are highly recurrent, FISH, RT-PCR or RNA-based sequencing panels can be used as confirmatory techniques, whereas in the scenario of testing an unselected population where NTRK1/2/3 fusions are uncommon, either front-line sequencing (preferentially RNA-sequencing) or screening by immunohistochemistry followed by sequencing of positive cases should be pursued.
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MESH Headings
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/isolation & purification
- High-Throughput Nucleotide Sequencing
- Humans
- Immunohistochemistry/standards
- In Situ Hybridization, Fluorescence/standards
- Medical Oncology/standards
- Membrane Glycoproteins/genetics
- Membrane Glycoproteins/isolation & purification
- Neoplasms/diagnosis
- Neoplasms/drug therapy
- Neoplasms/genetics
- Oncogene Proteins, Fusion/genetics
- Oncogene Proteins, Fusion/isolation & purification
- Precision Medicine/standards
- Protein Kinase Inhibitors/therapeutic use
- Receptor, trkA/genetics
- Receptor, trkA/isolation & purification
- Receptor, trkB/genetics
- Receptor, trkB/isolation & purification
- Receptor, trkC/genetics
- Receptor, trkC/isolation & purification
- Translational Research, Biomedical/standards
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Affiliation(s)
- C Marchiò
- Department of Medical Sciences, University of Turin, Turin; Division of Pathology, Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy
| | - M Scaltriti
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York; Human Oncology & Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York
| | - M Ladanyi
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York
| | - A J Iafrate
- Department of Pathology, Massachusetts General Hospital, Boston; Department of Pathology, Harvard Medical School, Boston, USA
| | - F Bibeau
- Department of Pathology, Caen University Hospital, Caen, France
| | - M Dietel
- Institute of Pathology, Charité, University Medicine Berlin, Berlin, Germany
| | - J F Hechtman
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York
| | - T Troiani
- Medical Oncology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - F López-Rios
- Pathology & Targeted Therapies Laboratory, HM Sanchinarro University Hospital, Madrid, Spain
| | - J-Y Douillard
- European Society for Medical Oncology, Lugano, Switzerland
| | - F Andrè
- Department of Medical Oncology, INSERM Unit 981, Institut Gustave Roussy, Villejuif, France.
| | - J S Reis-Filho
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York
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846
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The medical treatment of radioiodine-refractory differentiated thyroid cancers in 2019. A TUTHYREF® network review. Bull Cancer 2019; 106:812-819. [DOI: 10.1016/j.bulcan.2019.04.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 04/07/2019] [Accepted: 04/17/2019] [Indexed: 02/07/2023]
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847
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Is secretory breast carcinoma underdiagnosed? In the era of targeted therapy should there be a low threshold to screen for NTRK immunohistochemistry in triple negative breast cancers? Pathology 2019; 51:653-655. [PMID: 31470990 DOI: 10.1016/j.pathol.2019.04.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 04/19/2019] [Accepted: 04/30/2019] [Indexed: 11/22/2022]
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848
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Wang H, Diaz AK, Shaw TI, Li Y, Niu M, Cho JH, Paugh BS, Zhang Y, Sifford J, Bai B, Wu Z, Tan H, Zhou S, Hover LD, Tillman HS, Shirinifard A, Thiagarajan S, Sablauer A, Pagala V, High AA, Wang X, Li C, Baker SJ, Peng J. Deep multiomics profiling of brain tumors identifies signaling networks downstream of cancer driver genes. Nat Commun 2019; 10:3718. [PMID: 31420543 PMCID: PMC6697699 DOI: 10.1038/s41467-019-11661-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 07/19/2019] [Indexed: 12/11/2022] Open
Abstract
High throughput omics approaches provide an unprecedented opportunity for dissecting molecular mechanisms in cancer biology. Here we present deep profiling of whole proteome, phosphoproteome and transcriptome in two high-grade glioma (HGG) mouse models driven by mutated RTK oncogenes, PDGFRA and NTRK1, analyzing 13,860 proteins and 30,431 phosphosites by mass spectrometry. Systems biology approaches identify numerous master regulators, including 41 kinases and 23 transcription factors. Pathway activity computation and mouse survival indicate the NTRK1 mutation induces a higher activation of AKT downstream targets including MYC and JUN, drives a positive feedback loop to up-regulate multiple other RTKs, and confers higher oncogenic potency than the PDGFRA mutation. A mini-gRNA library CRISPR-Cas9 validation screening shows 56% of tested master regulators are important for the viability of NTRK-driven HGG cells, including TFs (Myc and Jun) and metabolic kinases (AMPKa1 and AMPKa2), confirming the validity of the multiomics integrative approaches, and providing novel tumor vulnerabilities.
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Affiliation(s)
- Hong Wang
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Center for Proteomics and Metabolomics, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Integrated Biomedical Sciences Program, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Alexander K Diaz
- Integrated Biomedical Sciences Program, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
- Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Timothy I Shaw
- Center for Proteomics and Metabolomics, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Yuxin Li
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Center for Proteomics and Metabolomics, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Mingming Niu
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Ji-Hoon Cho
- Center for Proteomics and Metabolomics, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Barbara S Paugh
- Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Yang Zhang
- Department of Tumor Cell Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Jeffrey Sifford
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Bing Bai
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, Jiangsu, 210008, China
| | - Zhiping Wu
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Haiyan Tan
- Center for Proteomics and Metabolomics, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Suiping Zhou
- Center for Proteomics and Metabolomics, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Laura D Hover
- Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Heather S Tillman
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Abbas Shirinifard
- Department of Information Sciences, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Suresh Thiagarajan
- Department of Diagnostic Imaging, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Andras Sablauer
- Department of Information Sciences, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Vishwajeeth Pagala
- Center for Proteomics and Metabolomics, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Anthony A High
- Center for Proteomics and Metabolomics, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Xusheng Wang
- Center for Proteomics and Metabolomics, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Chunliang Li
- Department of Tumor Cell Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Suzanne J Baker
- Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA.
| | - Junmin Peng
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA.
- Center for Proteomics and Metabolomics, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA.
- Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA.
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849
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Andersson MK, Åman P, Stenman G. IGF2/IGF1R Signaling as a Therapeutic Target in MYB-Positive Adenoid Cystic Carcinomas and Other Fusion Gene-Driven Tumors. Cells 2019; 8:cells8080913. [PMID: 31426421 PMCID: PMC6721700 DOI: 10.3390/cells8080913] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/13/2019] [Accepted: 08/15/2019] [Indexed: 12/12/2022] Open
Abstract
Chromosome rearrangements resulting in pathogenetically important gene fusions are a common feature of many cancers. They are often potent oncogenic drivers and have key functions in central cellular processes and pathways and encode transcription factors, transcriptional co-regulators, growth factor receptors, tyrosine kinases, and chromatin modifiers. In addition to being useful diagnostic biomarkers, they are also targets for development of new molecularly targeted therapies. Studies in recent decades have shown that several oncogenic gene fusions interact with the insulin-like growth factor (IGF) signaling pathway. For example, the MYB-NFIB fusion in adenoid cystic carcinoma is regulated by IGF1R through an autocrine loop, and IGF1R is a downstream target of the EWSR1-WT1 and PAX3-FKHR fusions in desmoplastic small round cell tumors and alveolar rhabdomyosarcoma, respectively. Here, we will discuss the mechanisms behind the interactions between oncogenic gene fusions and the IGF signaling pathway. We will also discuss the role of therapeutic inhibition of IGF1R in fusion gene driven malignancies.
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Affiliation(s)
- Mattias K Andersson
- Sahlgrenska Cancer Center, Department of Pathology, University of Gothenburg, 405 30 Gothenburg, Sweden.
| | - Pierre Åman
- Sahlgrenska Cancer Center, Department of Pathology, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Göran Stenman
- Sahlgrenska Cancer Center, Department of Pathology, University of Gothenburg, 405 30 Gothenburg, Sweden
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Subramanian G, Bowen SJ, Zhu Y, Roush N, Zachary T, Javens C, Williams T, Janssen A, Gonzales A. Type 2 inhibitor leads of human tropomyosin receptor kinase (hTrkA). Bioorg Med Chem Lett 2019; 29:126624. [PMID: 31444087 DOI: 10.1016/j.bmcl.2019.126624] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/12/2019] [Accepted: 08/13/2019] [Indexed: 10/26/2022]
Abstract
In silico virtual screening using the ligand-based ROCS approach and the commercially purchasable compound collection from the ZINC database resulted in the identification of distinctly different and novel acetamide core frameworks with series representatives 1a and 2a exhibiting nanomolar affinity in the kinase domain only hTrkA HTRF biochemical assay. Additional experimental validation using the Caliper technology with either the active or inactive kinase conditions demonstrated the leads, 1a and 2a, to preferentially bind the kinase inactive state. X-ray structural analysis of the kinase domain of hTrkA…1a/2a complexes confirmed the kinase, bind the inhibitor leads in the inactive state and to exhibit a type 2 binding mode with the DFG-out and αC-helix out conformation. The leads also demonstrated sub-micromolar activity in the full length hTrkA cell-based assay and selectivity against the closely related hTrkB isoform. However, the poor microsomal stability and permeability of the leads is suggestive of a multiparametric lead optimization effort requirement for further progression.
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Affiliation(s)
- Govindan Subramanian
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA.
| | - Scott J Bowen
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
| | - Yaqi Zhu
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
| | - Nicole Roush
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
| | - Theresa Zachary
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
| | - Christopher Javens
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
| | - Tracey Williams
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
| | - Ann Janssen
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
| | - Andrea Gonzales
- Veterinary Medicine Research & Development, Zoetis, 333 Portage Street, Bldg. 300, Kalamazoo, MI 49007, USA
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