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A novel TSC1 variant associated with tuberous sclerosis and sacrococcygeal teratoma. Hum Genome Var 2020; 7:39. [PMID: 33298910 PMCID: PMC7677537 DOI: 10.1038/s41439-020-00124-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 09/15/2020] [Accepted: 10/05/2020] [Indexed: 11/11/2022] Open
Abstract
Tuberous sclerosis complex (TSC) is an autosomal dominant disease associated with tumors and malformed tissues in the brain and other vital organs. We report a novel de novo frameshift variant of the TSC1 gene (c.434dup;p. Ser146Valfs*8) in a child with TSC who initially presented with a sacral teratoma. This previously unreported association between TSC and teratoma has broad implications for the pathophysiology of embryonic tumors and mechanisms underlying cellular differentiation.
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Boronat S, Barber I. Less common manifestations in TSC. AMERICAN JOURNAL OF MEDICAL GENETICS PART C-SEMINARS IN MEDICAL GENETICS 2018; 178:348-354. [PMID: 30156054 DOI: 10.1002/ajmg.c.31648] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 07/10/2018] [Accepted: 07/17/2018] [Indexed: 12/19/2022]
Abstract
Tuberous sclerosis complex (TSC) is due to pathogenic variants in TSC1 or TSC2 genes resulting in hyperactivation of the mTOR pathway. Many organ systems can be affected, such as brain, skin, eye, heart, bone, kidney, or lung. Typical lesions of TSC usually are those included as major criteria, including angiofibromas, hypomelanotic macules, tubers, subependymal nodules, angiomyolipomas, cardiac rhabdomyomas, and lymphangioleiomyomatosis. However, there are many other manifestations less frequent and/or less well known, many of them not included as clinical diagnostic criteria that are part of the clinical spectrum of TSC. The focus of this review will be on these less common and less well-known manifestations of TSC. Among the rare manifestations, we will discuss some clinical findings including arteriopathy, arachnoid cysts, lymphatic involvement, chordomas, gynecological, endocrine, and gastrointestinal findings. Among the manifestations that are very frequent but much less well known, we find the sclerotic bone lesions. Although they are very frequent in TSC they have been largely overlooked and not considered diagnostic criteria, mainly because they are asymptomatic. However, it is important to know their typical characteristics to avoid misdiagnosing them as metastasis.
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Affiliation(s)
- Susana Boronat
- Department of Clinical Genetics, Hospital Universitari Sagrat Cor, Barcelona, Spain.,Department of Pediatric Neurology, Hospital Quirónsalud Vallès, Sabadell, Spain
| | - Ignasi Barber
- Department of Pediatric Radiology, Hospital San Joan de Déu, Barcelona
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Dahl NA, Luebbert T, Loi M, Neuberger I, Handler MH, Kleinschmidt-DeMasters BK, Mulcahy Levy JM. Chordoma Occurs in Young Children With Tuberous Sclerosis. J Neuropathol Exp Neurol 2017; 76:418-423. [PMID: 28498973 DOI: 10.1093/jnen/nlx032] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Chordomas are rare bony neoplasms usually unassociated with a familial tumor predisposition syndrome. The peak incidence of this midline axial skeletal tumor is in adulthood but when very young children are affected, consideration should be given to occurrence within the tuberous sclerosis (TS) complex, especially when presenting in neonates <3 months of age. To call attention to this association, we present a brachyury-immunopositive chordoma occurring in the skull base of a 2-month-old male infant who was later realized to have metastases to the subcutaneous tissues and lungs, as well as rhabdomyoma of the heart and renal cysts/angiomyolipomas, that is, characteristic features of the TS complex. We review the limited literature on this topic.
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Affiliation(s)
- Nathan A Dahl
- From the Department of Pediatrics, University of Colorado Denver, Aurora, Colorado (NAD, TL, ML, JMM-L); Morgan Adams Foundation Pediatric Brain Tumor Research Program, Children's Hospital Colorado, Aurora, Colorado (NAD, JMM-L); Department of Neurology (TL, BKK-D); Department of Radiology (IN); Department of Neurosurgery (MHH, BKK-D); and Department of Pathology, University of Colorado Denver, Aurora, Colorado (BKK-D)
| | - Timothy Luebbert
- From the Department of Pediatrics, University of Colorado Denver, Aurora, Colorado (NAD, TL, ML, JMM-L); Morgan Adams Foundation Pediatric Brain Tumor Research Program, Children's Hospital Colorado, Aurora, Colorado (NAD, JMM-L); Department of Neurology (TL, BKK-D); Department of Radiology (IN); Department of Neurosurgery (MHH, BKK-D); and Department of Pathology, University of Colorado Denver, Aurora, Colorado (BKK-D)
| | - Michele Loi
- From the Department of Pediatrics, University of Colorado Denver, Aurora, Colorado (NAD, TL, ML, JMM-L); Morgan Adams Foundation Pediatric Brain Tumor Research Program, Children's Hospital Colorado, Aurora, Colorado (NAD, JMM-L); Department of Neurology (TL, BKK-D); Department of Radiology (IN); Department of Neurosurgery (MHH, BKK-D); and Department of Pathology, University of Colorado Denver, Aurora, Colorado (BKK-D)
| | - Ilana Neuberger
- From the Department of Pediatrics, University of Colorado Denver, Aurora, Colorado (NAD, TL, ML, JMM-L); Morgan Adams Foundation Pediatric Brain Tumor Research Program, Children's Hospital Colorado, Aurora, Colorado (NAD, JMM-L); Department of Neurology (TL, BKK-D); Department of Radiology (IN); Department of Neurosurgery (MHH, BKK-D); and Department of Pathology, University of Colorado Denver, Aurora, Colorado (BKK-D)
| | - Michael H Handler
- From the Department of Pediatrics, University of Colorado Denver, Aurora, Colorado (NAD, TL, ML, JMM-L); Morgan Adams Foundation Pediatric Brain Tumor Research Program, Children's Hospital Colorado, Aurora, Colorado (NAD, JMM-L); Department of Neurology (TL, BKK-D); Department of Radiology (IN); Department of Neurosurgery (MHH, BKK-D); and Department of Pathology, University of Colorado Denver, Aurora, Colorado (BKK-D)
| | - Bette Kay Kleinschmidt-DeMasters
- From the Department of Pediatrics, University of Colorado Denver, Aurora, Colorado (NAD, TL, ML, JMM-L); Morgan Adams Foundation Pediatric Brain Tumor Research Program, Children's Hospital Colorado, Aurora, Colorado (NAD, JMM-L); Department of Neurology (TL, BKK-D); Department of Radiology (IN); Department of Neurosurgery (MHH, BKK-D); and Department of Pathology, University of Colorado Denver, Aurora, Colorado (BKK-D)
| | - Jean M Mulcahy Levy
- From the Department of Pediatrics, University of Colorado Denver, Aurora, Colorado (NAD, TL, ML, JMM-L); Morgan Adams Foundation Pediatric Brain Tumor Research Program, Children's Hospital Colorado, Aurora, Colorado (NAD, JMM-L); Department of Neurology (TL, BKK-D); Department of Radiology (IN); Department of Neurosurgery (MHH, BKK-D); and Department of Pathology, University of Colorado Denver, Aurora, Colorado (BKK-D)
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Wang AC, Owen JH, Abuzeid WM, Hervey-Jumper SL, He X, Gurrea M, Lin M, Altshuler DB, Keep RF, Prince ME, Carey TE, Fan X, McKean EL, Sullivan SE. STAT3 Inhibition as a Therapeutic Strategy for Chordoma. J Neurol Surg B Skull Base 2016; 77:510-520. [PMID: 27857879 DOI: 10.1055/s-0036-1584198] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 04/17/2016] [Indexed: 12/24/2022] Open
Abstract
Objective Signal transducer and activator of transcription (STAT) proteins regulate key cellular fate decisions including proliferation and apoptosis. STAT3 overexpression induces tumor growth in multiple neoplasms. STAT3 is constitutively activated in chordoma, a tumor with a high recurrence rate despite maximal surgical and radiation treatment. We hypothesized that a novel small molecule inhibitor of STAT3 (FLLL32) would induce significant cytotoxicity in sacral and clival chordoma cells. Methods Sacral (UCh1) and clival (UM-CHOR-1) chordoma cell lines were grown in culture (the latter derived from primary tumor explants). FLLL32 dosing parameters were optimized using cell viability assays. Antitumor potential of FLLL32 was assessed using clonal proliferation assays. Potential mechanisms underlying observed cytotoxicity were examined using immunofluorescence assays. Results FLLL32 induced significant cytotoxicity in UCh1 and UM-CHOR-1 chordoma cells, essentially eliminating all viable cells, correlating with observed downregulation in activated, phosphorylated STAT3 upon administration of FLLL32. Mechanisms underlying the observed cytotoxicity included increased apoptosis and reduced cellular proliferation through inhibition of mitosis. Conclusion As a monotherapy, FLLL32 induces potent tumor kill in vitro in chordoma cell lines derived from skull base and sacrum. This effect is mediated through inhibition of STAT3 phosphorylation, increased susceptibility to apoptosis, and suppression of cell proliferation.
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Affiliation(s)
- Anthony C Wang
- Department of Neurological Surgery, University of Washington School of Medicine, Seattle, Washington, United States
| | - John H Owen
- Department of Otolaryngology-Head and Neck Surgery, University of Michigan, Ann Arbor, Michigan, United States
| | - Waleed M Abuzeid
- Department of Otorhinolaryngology-Head and Neck Surgery, Albert Einstein College of Medicine, Bronx, New York, United States
| | - Shawn L Hervey-Jumper
- Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan, United States
| | - Xiaobing He
- Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan, United States
| | - Mikel Gurrea
- Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan, United States
| | - Meijuan Lin
- Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan, United States
| | - David B Altshuler
- Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan, United States
| | - Richard F Keep
- Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan, United States
| | - Mark E Prince
- Department of Otolaryngology-Head and Neck Surgery, University of Michigan, Ann Arbor, Michigan, United States
| | - Thomas E Carey
- Department of Otolaryngology-Head and Neck Surgery, University of Michigan, Ann Arbor, Michigan, United States
| | - Xing Fan
- Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan, United States; Department of Cell and Developmental Biology, University of Michigan, Ann Arbor, Michigan, United States
| | - Erin L McKean
- Department of Otolaryngology-Head and Neck Surgery, University of Michigan, Ann Arbor, Michigan, United States
| | - Stephen E Sullivan
- Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan, United States
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Yakkioui Y, van Overbeeke JJ, Santegoeds R, van Engeland M, Temel Y. Chordoma: the entity. Biochim Biophys Acta Rev Cancer 2014; 1846:655-69. [PMID: 25193090 DOI: 10.1016/j.bbcan.2014.07.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Revised: 07/28/2014] [Accepted: 07/30/2014] [Indexed: 01/08/2023]
Abstract
Chordomas are malignant tumors of the axial skeleton, characterized by their locally invasive and slow but aggressive growth. These neoplasms are presumed to be derived from notochordal remnants with a molecular alteration preceding their malignant transformation. As these tumors are most frequently observed on the skull base and sacrum, patients suffering from a chordoma present with debilitating neurological disease, and have an overall 5-year survival rate of 65%. Surgical resection with adjuvant radiotherapy is the first-choice treatment modality in these patients, since chordomas are resistant to conventional chemotherapy. Even so, management of chordomas can be challenging, as chordoma patients often present with recurrent disease. Recent advances in the understanding of the molecular events that contribute to the development of chordomas are promising; the most novel finding being the identification of brachyury in the disease process. Here we present an overview of the current paradigms and summarize relevant research findings.
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Affiliation(s)
- Youssef Yakkioui
- Department of Neurosurgery, Maastricht University Medical Center, Maastricht, The Netherlands; Department of Neuroscience, Maastricht University Medical Center, Maastricht, The Netherlands.
| | - Jacobus J van Overbeeke
- Department of Neurosurgery, Maastricht University Medical Center, Maastricht, The Netherlands; Department of Neuroscience, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Remco Santegoeds
- Department of Neurosurgery, Maastricht University Medical Center, Maastricht, The Netherlands; Department of Neuroscience, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Manon van Engeland
- Department of Pathology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Yasin Temel
- Department of Neurosurgery, Maastricht University Medical Center, Maastricht, The Netherlands; Department of Neuroscience, Maastricht University Medical Center, Maastricht, The Netherlands
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George B, Bresson D, Bouazza S, Froelich S, Mandonnet E, Hamdi S, Orabi M, Polivka M, Cazorla A, Adle-Biassette H, Guichard JP, Duet M, Gayat E, Vallée F, Canova CH, Riet F, Bolle S, Calugaru V, Dendale R, Mazeron JJ, Feuvret L, Boissier E, Vignot S, Puget S, Sainte-Rose C, Beccaria K. [Chordoma]. Neurochirurgie 2014; 60:63-140. [PMID: 24856008 DOI: 10.1016/j.neuchi.2014.02.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 02/14/2014] [Accepted: 03/11/2014] [Indexed: 12/28/2022]
Abstract
PURPOSES To review in the literature, all the epidemiological, clinical, radiological, histological and therapeutic data regarding chordomas as well as various notochordal entities: ecchordosis physaliphora, intradural and intraparenchymatous chordomas, benign notochordal cell tumors, parachordomas and extra-axial chordomas. To identify different types of chordomas, including familial forms, associations with tuberous sclerosis, Ollier's disease and Maffucci's syndrome, forms with metastasis and seeding. To assess the recent data regarding molecular biology and progress in targeted therapy. To compare the different types of radiotherapy, especially protontherapy and their therapeutic effects. To review the largest series of chordomas in their different localizations (skull base, sacrum and mobile spine) from the literature. MATERIALS The series of 136 chordomas treated and followed up over 20 years (1972-2012) in the department of neurosurgery at Lariboisière hospital is reviewed. It includes: 58 chordomas of the skull base, 47 of the craniocervical junction, 23 of the cervical spine and 8 from the lombosacral region. Similarly, 31 chordomas in children (less than 18 years of age), observed in the departments of neurosurgery of les Enfants-Malades and Lariboisière hospitals, are presented. They were observed between 1976 and 2010 and were located intracranially (n=22 including 13 with cervical extension), 4 at the craniocervical junction level and 5 in the cervical spine. METHODS In the entire Lariboisière series and in the different groups of localization, different parameters were analyzed: the delay of diagnosis, of follow-up, of occurrence of metastasis, recurrence and death, the number of primary patients and patients referred to us after progression or recurrence and the number of deaths, recurrences and metastases. The influence of the quality of resection (total, subtotal and partial) on the prognosis is also presented. Kaplan-Meier actuarial curves of overall survival and disease free survival were performed in the entire series, including the different groups of localization based on the following 4 parameters: age, primary and secondary patients, quality of resection and protontherapy. In the pediatric series, a similar analysis was carried-out but was limited by the small number of patients in the subgroups. RESULTS In the Lariboisière series, the mean delay of diagnosis is 10 months and the mean follow-up is 80 months in each group. The delay before recurrence, metastasis and death is always better for the skull base chordomas and worse for those of the craniocervical junction, which have similar results to those of the cervical spine. Similar figures were observed as regards the number of deaths, metastases and recurrences. Quality of resection is the major factor of prognosis with 20.5 % of deaths and 28 % of recurrences after total resection as compared to 52.5 % and 47.5 % after subtotal resection. This is still more obvious in the group of skull base chordomas. Adding protontherapy to a total resection can still improve the results but there is no change after subtotal resection. The actuarial curve of overall survival shows a clear cut in the slope with some chordomas having a fast evolution towards recurrence and death in less than 4 years and others having a long survival of sometimes more than 20 years. Also, age has no influence on the prognosis. In primary patients, disease free survival is better than in secondary patients but not in overall survival. Protontherapy only improves the overall survival in the entire series and in the skull base group. Total resection improves both the overall and disease free survival in each group. Finally, the adjunct of protontherapy after total resection is clearly demonstrated. In the pediatric series, the median follow-up is 5.7 years. Overall survival and disease free survival are respectively 63 % and 54.3 %. Factors of prognosis are the histological type (atypical forms), localization (worse for the cervical spine and better for the clivus) and again it will depend on the quality of resection. CONCLUSIONS Many different pathologies derived from the notochord can be observed: some are remnants, some may be precursors of chordomas and some have similar features but are probably not genuine chordomas. To-day, immuno-histological studies should permit to differentiate them from real chordomas. Improving knowledge of molecular biology raises hopes for complementary treatments but to date the quality of surgical resection is still the main factor of prognosis. Complementary protontherapy seems useful, especially in skull base chordomas, which have better overall results than those of the craniocervical junction and of the cervical spine. However, we are still lacking an intrinsic marker of evolution to differentiate the slow growing chordomas with an indolent evolution from aggressive types leading rapidly to recurrence and death on which more aggressive treatments should be applied.
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Affiliation(s)
- B George
- Service de neurochirurgie, hôpital Lariboisière, 2, rue Ambroise-Paré, 75010 Paris, France.
| | - D Bresson
- Service de neurochirurgie, hôpital Lariboisière, 2, rue Ambroise-Paré, 75010 Paris, France
| | - S Bouazza
- Service de neurochirurgie, hôpital Lariboisière, 2, rue Ambroise-Paré, 75010 Paris, France
| | - S Froelich
- Service de neurochirurgie, hôpital Lariboisière, 2, rue Ambroise-Paré, 75010 Paris, France
| | - E Mandonnet
- Service de neurochirurgie, hôpital Lariboisière, 2, rue Ambroise-Paré, 75010 Paris, France
| | - S Hamdi
- Service de neurochirurgie, hôpital Lariboisière, 2, rue Ambroise-Paré, 75010 Paris, France
| | - M Orabi
- Service de neurochirurgie, hôpital Lariboisière, 2, rue Ambroise-Paré, 75010 Paris, France
| | - M Polivka
- Service d'anatomopathologie, hôpital Lariboisière, 2, rue Ambroise-Paré, 75010 Paris, France
| | - A Cazorla
- Service d'anatomopathologie, hôpital Lariboisière, 2, rue Ambroise-Paré, 75010 Paris, France
| | - H Adle-Biassette
- Service d'anatomopathologie, hôpital Lariboisière, 2, rue Ambroise-Paré, 75010 Paris, France
| | - J-P Guichard
- Service de neuroradiologie, hôpital Lariboisière, 2, rue Ambroise-Paré, 75010 Paris, France
| | - M Duet
- Service de médecine nucléaire, hôpital Lariboisière, 2, rue Ambroise-Paré, 75010 Paris, France
| | - E Gayat
- Service d'anesthésie-réanimation, hôpital Lariboisière, 2, rue Ambroise-Paré, 75010 Paris, France
| | - F Vallée
- Service d'anesthésie-réanimation, hôpital Lariboisière, 2, rue Ambroise-Paré, 75010 Paris, France
| | - C-H Canova
- Service de radiothérapie et d'oncologie médicale, hôpital de la Salpêtrière, institut Gustave-Roussy, institut Curie, 47-83, boulevard de l'Hôpital, 75013 Paris, France
| | - F Riet
- Service de radiothérapie et d'oncologie médicale, hôpital de la Salpêtrière, institut Gustave-Roussy, institut Curie, 47-83, boulevard de l'Hôpital, 75013 Paris, France
| | - S Bolle
- Service de radiothérapie et d'oncologie médicale, hôpital de la Salpêtrière, institut Gustave-Roussy, institut Curie, 47-83, boulevard de l'Hôpital, 75013 Paris, France
| | - V Calugaru
- Service de radiothérapie et d'oncologie médicale, hôpital de la Salpêtrière, institut Gustave-Roussy, institut Curie, 47-83, boulevard de l'Hôpital, 75013 Paris, France
| | - R Dendale
- Service de radiothérapie et d'oncologie médicale, hôpital de la Salpêtrière, institut Gustave-Roussy, institut Curie, 47-83, boulevard de l'Hôpital, 75013 Paris, France
| | - J-J Mazeron
- Service de radiothérapie et d'oncologie médicale, hôpital de la Salpêtrière, institut Gustave-Roussy, institut Curie, 47-83, boulevard de l'Hôpital, 75013 Paris, France
| | - L Feuvret
- Service de radiothérapie et d'oncologie médicale, hôpital de la Salpêtrière, institut Gustave-Roussy, institut Curie, 47-83, boulevard de l'Hôpital, 75013 Paris, France
| | - E Boissier
- Service de radiothérapie et d'oncologie médicale, hôpital de la Salpêtrière, institut Gustave-Roussy, institut Curie, 47-83, boulevard de l'Hôpital, 75013 Paris, France
| | - S Vignot
- Service de radiothérapie et d'oncologie médicale, hôpital de la Salpêtrière, institut Gustave-Roussy, institut Curie, 47-83, boulevard de l'Hôpital, 75013 Paris, France
| | - S Puget
- Service de neurochirurgie, hôpital Necker, 149, rue de Sèvres, 75015 Paris, France
| | - C Sainte-Rose
- Service de neurochirurgie, hôpital Necker, 149, rue de Sèvres, 75015 Paris, France
| | - K Beccaria
- Service de neurochirurgie, hôpital Necker, 149, rue de Sèvres, 75015 Paris, France
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Chemotherapy of skull base chordoma tailored on responsiveness of patient-derived tumor cells to rapamycin. Neoplasia 2014; 15:773-82. [PMID: 23814489 DOI: 10.1593/neo.13150] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 04/05/2013] [Accepted: 04/11/2013] [Indexed: 01/05/2023] Open
Abstract
Skull base chordomas are challenging tumors due to their deep surgical location and resistance to conventional radiotherapy. Chemotherapy plays a marginal role in the treatment of chordoma resulting from lack of preclinical models due to the difficulty in establishing tumor cell lines and valuable in vivo models. Here, we established a cell line from a recurrent clival chordoma. Cells were cultured for more than 30 passages and the expression of the chordoma cell marker brachyury was monitored using both immunohistochemistry and Western blot. Sensitivity of chordoma cells to the inhibition of specific signaling pathways was assessed through testing of a commercially available small molecule kinase inhibitor library. In vivo tumorigenicity was evaluated by grafting chordoma cells onto immunocompromised mice and established tumor xenografts were treated with rapamycin. Rapamycin was administered to the donor patient and its efficacy was assessed on follow-up neuroimaging. Chordoma cells maintained brachyury expression at late passages and generated xenografts closely mimicking the histology and phenotype of the parental tumor. Rapamycin was identified as an inhibitor of chordoma cell proliferation. Molecular analyses on tumor cells showed activation of the mammalian target of rapamycin signaling pathway and mutation of KRAS gene. Rapamycin was also effective in reducing the growth of chordoma xenografts. On the basis of these results, our patient received rapamycin therapy with about six-fold reduction of the tumor growth rate upon 10-month follow-up neuroimaging. This is the first case of chordoma in whom chemotherapy was tailored on the basis of the sensitivity of patient-derived tumor cells.
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9
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McMaster ML, Goldstein AM, Parry DM. Clinical features distinguish childhood chordoma associated with tuberous sclerosis complex (TSC) from chordoma in the general paediatric population. J Med Genet 2011; 48:444-9. [PMID: 21266383 PMCID: PMC3235000 DOI: 10.1136/jmg.2010.085092] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Chordoma, an age-dependent rare cancer, arises from notochordal remnants. Fewer than 5% of chordomas occur in children. Tuberous sclerosis complex (TSC) is an autosomal dominant neurocutaneous syndrome characterised by abnormal tissue growths in multiple organ systems. Reports of chordoma in children with TSC suggest that TSC1 and TSC2 mutations may contribute to chordoma aetiology. METHODS To determine whether the 10 TSC-associated childhood chordomas reported in the literature are representative of chordoma in the general paediatric population, the authors compared age at diagnosis, primary site and outcome in them with results from a systematic assessment of 65 paediatric chordoma cases reported to the US population-based cancer registries contributing to the SEER Program of the National Cancer Institute. RESULTS TSC-associated paediatric chordomas differed from chordomas in the general paediatric population: median age at diagnosis (6.2 months, TSC, vs 12.5 years, SEER); anatomical site (40% sacral, TSC, vs 9.4% sacral, SEER); and site-specific age at diagnosis (all four sacral chordomas diagnosed during the fetal or neonatal period, TSC, vs all six sacral chordomas diagnosed at >15 years, SEER). Finally, three of four patients with TSC-associated sacral chordoma were alive and tumour-free at 2.2, 8 and 19 years after diagnosis versus a median survival of 36 months among paediatric patients with sacral chordoma in SEER. CONCLUSIONS These results strengthen the association between paediatric chordoma and TSC. Future clinical and molecular studies documenting the magnitude and clinical spectrum of the joint occurrence of these two diseases should provide the basis for delineating the biological relationship between them.
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Affiliation(s)
- Mary L. McMaster
- Genetic Epidemiology Branch, Human Genetics Program, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD
- Commissioned Corps of the United States Public Health Service, Department of Health and Human Services, Washington, DC
| | - Alisa M. Goldstein
- Genetic Epidemiology Branch, Human Genetics Program, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD
| | - Dilys M. Parry
- Genetic Epidemiology Branch, Human Genetics Program, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD
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Diaz RJ, Cusimano MD. The biological basis for modern treatment of chordoma. J Neurooncol 2011; 104:411-22. [PMID: 21384217 DOI: 10.1007/s11060-011-0559-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Accepted: 02/21/2011] [Indexed: 01/03/2023]
Abstract
Chordomas are rare malignant tumors arising in bone of the spheno-occiput, sacrum, and vertebral column which can cause neurological deficit. Current management of chordoma involves safe resection followed by radiation therapy. However, surgical resection is often subtotal and chordoma often recurs despite optimal therapy. Despite years of effort, effective adjuvant therapy for denovo, recurrent and metastatic chordoma are absent and 5-year survival is at best 65%. While no chemotherapeutic agent has been demonstrated to be effective against chordoma in vivo, a greater understanding of the genetics and molecular biology of chordoma is opening up avenues of investigation towards the rational development of targeted therapies. Although enthusiasm for the use of already established or new investigational agents will increase with greater understanding of chordoma biology, laboratory studies of these agents are important prior to incorporation into clinical human trials. The authors review the current state of knowledge regarding chordoma and offer insight into potential new therapies for this rare and challenging tumor.
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Affiliation(s)
- Roberto Jose Diaz
- Arthur and Sonia Labatt Brain Tumor Research Centre, The Hospital for Sick Children, Toronto, ON, Canada.
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