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Jain S, Bakolitsa C, Brenner SE, Radivojac P, Moult J, Repo S, Hoskins RA, Andreoletti G, Barsky D, Chellapan A, Chu H, Dabbiru N, Kollipara NK, Ly M, Neumann AJ, Pal LR, Odell E, Pandey G, Peters-Petrulewicz RC, Srinivasan R, Yee SF, Yeleswarapu SJ, Zuhl M, Adebali O, Patra A, Beer MA, Hosur R, Peng J, Bernard BM, Berry M, Dong S, Boyle AP, Adhikari A, Chen J, Hu Z, Wang R, Wang Y, Miller M, Wang Y, Bromberg Y, Turina P, Capriotti E, Han JJ, Ozturk K, Carter H, Babbi G, Bovo S, Di Lena P, Martelli PL, Savojardo C, Casadio R, Cline MS, De Baets G, Bonache S, Díez O, Gutiérrez-Enríquez S, Fernández A, Montalban G, Ootes L, Özkan S, Padilla N, Riera C, De la Cruz X, Diekhans M, Huwe PJ, Wei Q, Xu Q, Dunbrack RL, Gotea V, Elnitski L, Margolin G, Fariselli P, Kulakovskiy IV, Makeev VJ, Penzar DD, Vorontsov IE, Favorov AV, Forman JR, Hasenahuer M, Fornasari MS, Parisi G, Avsec Z, Çelik MH, Nguyen TYD, Gagneur J, Shi FY, Edwards MD, Guo Y, Tian K, Zeng H, Gifford DK, Göke J, Zaucha J, Gough J, Ritchie GRS, Frankish A, Mudge JM, Harrow J, Young EL, Yu Y, Huff CD, Murakami K, Nagai Y, Imanishi T, Mungall CJ, Jacobsen JOB, Kim D, Jeong CS, Jones DT, Li MJ, Guthrie VB, Bhattacharya R, Chen YC, Douville C, Fan J, Kim D, Masica D, Niknafs N, Sengupta S, Tokheim C, Turner TN, Yeo HTG, Karchin R, Shin S, Welch R, Keles S, Li Y, Kellis M, Corbi-Verge C, Strokach AV, Kim PM, Klein TE, Mohan R, Sinnott-Armstrong NA, Wainberg M, Kundaje A, Gonzaludo N, Mak ACY, Chhibber A, Lam HYK, Dahary D, Fishilevich S, Lancet D, Lee I, Bachman B, Katsonis P, Lua RC, Wilson SJ, Lichtarge O, Bhat RR, Sundaram L, Viswanath V, Bellazzi R, Nicora G, Rizzo E, Limongelli I, Mezlini AM, Chang R, Kim S, Lai C, O’Connor R, Topper S, van den Akker J, Zhou AY, Zimmer AD, Mishne G, Bergquist TR, Breese MR, Guerrero RF, Jiang Y, Kiga N, Li B, Mort M, Pagel KA, Pejaver V, Stamboulian MH, Thusberg J, Mooney SD, Teerakulkittipong N, Cao C, Kundu K, Yin Y, Yu CH, Kleyman M, Lin CF, Stackpole M, Mount SM, Eraslan G, Mueller NS, Naito T, Rao AR, Azaria JR, Brodie A, Ofran Y, Garg A, Pal D, Hawkins-Hooker A, Kenlay H, Reid J, Mucaki EJ, Rogan PK, Schwarz JM, Searls DB, Lee GR, Seok C, Krämer A, Shah S, Huang CV, Kirsch JF, Shatsky M, Cao Y, Chen H, Karimi M, Moronfoye O, Sun Y, Shen Y, Shigeta R, Ford CT, Nodzak C, Uppal A, Shi X, Joseph T, Kotte S, Rana S, Rao A, Saipradeep VG, Sivadasan N, Sunderam U, Stanke M, Su A, Adzhubey I, Jordan DM, Sunyaev S, Rousseau F, Schymkowitz J, Van Durme J, Tavtigian SV, Carraro M, Giollo M, Tosatto SCE, Adato O, Carmel L, Cohen NE, Fenesh T, Holtzer T, Juven-Gershon T, Unger R, Niroula A, Olatubosun A, Väliaho J, Yang Y, Vihinen M, Wahl ME, Chang B, Chong KC, Hu I, Sun R, Wu WKK, Xia X, Zee BC, Wang MH, Wang M, Wu C, Lu Y, Chen K, Yang Y, Yates CM, Kreimer A, Yan Z, Yosef N, Zhao H, Wei Z, Yao Z, Zhou F, Folkman L, Zhou Y, Daneshjou R, Altman RB, Inoue F, Ahituv N, Arkin AP, Lovisa F, Bonvini P, Bowdin S, Gianni S, Mantuano E, Minicozzi V, Novak L, Pasquo A, Pastore A, Petrosino M, Puglisi R, Toto A, Veneziano L, Chiaraluce R, Ball MP, Bobe JR, Church GM, Consalvi V, Cooper DN, Buckley BA, Sheridan MB, Cutting GR, Scaini MC, Cygan KJ, Fredericks AM, Glidden DT, Neil C, Rhine CL, Fairbrother WG, Alontaga AY, Fenton AW, Matreyek KA, Starita LM, Fowler DM, Löscher BS, Franke A, Adamson SI, Graveley BR, Gray JW, Malloy MJ, Kane JP, Kousi M, Katsanis N, Schubach M, Kircher M, Mak ACY, Tang PLF, Kwok PY, Lathrop RH, Clark WT, Yu GK, LeBowitz JH, Benedicenti F, Bettella E, Bigoni S, Cesca F, Mammi I, Marino-Buslje C, Milani D, Peron A, Polli R, Sartori S, Stanzial F, Toldo I, Turolla L, Aspromonte MC, Bellini M, Leonardi E, Liu X, Marshall C, McCombie WR, Elefanti L, Menin C, Meyn MS, Murgia A, Nadeau KCY, Neuhausen SL, Nussbaum RL, Pirooznia M, Potash JB, Dimster-Denk DF, Rine JD, Sanford JR, Snyder M, Cote AG, Sun S, Verby MW, Weile J, Roth FP, Tewhey R, Sabeti PC, Campagna J, Refaat MM, Wojciak J, Grubb S, Schmitt N, Shendure J, Spurdle AB, Stavropoulos DJ, Walton NA, Zandi PP, Ziv E, Burke W, Chen F, Carr LR, Martinez S, Paik J, Harris-Wai J, Yarborough M, Fullerton SM, Koenig BA, McInnes G, Shigaki D, Chandonia JM, Furutsuki M, Kasak L, Yu C, Chen R, Friedberg I, Getz GA, Cong Q, Kinch LN, Zhang J, Grishin NV, Voskanian A, Kann MG, Tran E, Ioannidis NM, Hunter JM, Udani R, Cai B, Morgan AA, Sokolov A, Stuart JM, Minervini G, Monzon AM, Batzoglou S, Butte AJ, Greenblatt MS, Hart RK, Hernandez R, Hubbard TJP, Kahn S, O’Donnell-Luria A, Ng PC, Shon J, Veltman J, Zook JM. CAGI, the Critical Assessment of Genome Interpretation, establishes progress and prospects for computational genetic variant interpretation methods. Genome Biol 2024; 25:53. [PMID: 38389099 PMCID: PMC10882881 DOI: 10.1186/s13059-023-03113-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 11/17/2023] [Indexed: 02/24/2024] Open
Abstract
BACKGROUND The Critical Assessment of Genome Interpretation (CAGI) aims to advance the state-of-the-art for computational prediction of genetic variant impact, particularly where relevant to disease. The five complete editions of the CAGI community experiment comprised 50 challenges, in which participants made blind predictions of phenotypes from genetic data, and these were evaluated by independent assessors. RESULTS Performance was particularly strong for clinical pathogenic variants, including some difficult-to-diagnose cases, and extends to interpretation of cancer-related variants. Missense variant interpretation methods were able to estimate biochemical effects with increasing accuracy. Assessment of methods for regulatory variants and complex trait disease risk was less definitive and indicates performance potentially suitable for auxiliary use in the clinic. CONCLUSIONS Results show that while current methods are imperfect, they have major utility for research and clinical applications. Emerging methods and increasingly large, robust datasets for training and assessment promise further progress ahead.
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Ruhen O, Lak NS, Stutterheim J, Danielli SG, Chicard M, Iddir Y, Saint-Charles A, Di Paolo V, Tombolan L, Gatz SA, Aladowicz E, Proszek P, Jamal S, Stankunaite R, Hughes D, Carter P, Izquierdo E, Wasti A, Chisholm JC, George SL, Pace E, Chesler L, Aerts I, Pierron G, Zaidi S, Delattre O, Surdez D, Kelsey A, Hubank M, Bonvini P, Bisogno G, Di Giannatale A, Schleiermacher G, Schäfer BW, Tytgat GA, Shipley J. Molecular Characterization of Circulating Tumor DNA in Pediatric Rhabdomyosarcoma: A Feasibility Study. JCO Precis Oncol 2022; 6:e2100534. [PMID: 36265118 PMCID: PMC9616639 DOI: 10.1200/po.21.00534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 05/17/2022] [Accepted: 08/26/2022] [Indexed: 05/24/2023] Open
Abstract
PURPOSE Rhabdomyosarcomas (RMS) are rare neoplasms affecting children and young adults. Efforts to improve patient survival have been undermined by a lack of suitable disease markers. Plasma circulating tumor DNA (ctDNA) has shown promise as a potential minimally invasive biomarker and monitoring tool in other cancers; however, it remains underexplored in RMS. We aimed to determine the feasibility of identifying and quantifying ctDNA in plasma as a marker of disease burden and/or treatment response using blood samples from RMS mouse models and patients. METHODS We established mouse models of RMS and applied quantitative polymerase chain reaction (PCR) and droplet digital PCR (ddPCR) to detect ctDNA within the mouse plasma. Potential driver mutations, copy-number alterations, and DNA breakpoints associated with PAX3/7-FOXO1 gene fusions were identified in the RMS samples collected at diagnosis. Patient-matched plasma samples collected from 28 patients with RMS before, during, and after treatment were analyzed for the presence of ctDNA via ddPCR, panel sequencing, and/or whole-exome sequencing. RESULTS Human tumor-derived DNA was detectable in plasma samples from mouse models of RMS and correlated with tumor burden. In patients, ctDNA was detected in 14/18 pretreatment plasma samples with ddPCR and 7/7 cases assessed by sequencing. Levels of ctDNA at diagnosis were significantly higher in patients with unfavorable tumor sites, positive nodal status, and metastasis. In patients with serial plasma samples (n = 18), fluctuations in ctDNA levels corresponded to treatment response. CONCLUSION Comprehensive ctDNA analysis combining high sensitivity and throughput can identify key molecular drivers in RMS models and patients, suggesting potential as a minimally invasive biomarker. Preclinical assessment of treatments using mouse models and further patient testing through prospective clinical trials are now warranted.
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Affiliation(s)
- Olivia Ruhen
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
| | - Nathalie S.M. Lak
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Experimental Immunohematology, Sanquin, Amsterdam, the Netherlands
| | - Janine Stutterheim
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Experimental Immunohematology, Sanquin, Amsterdam, the Netherlands
| | - Sara G. Danielli
- Department of Oncology and Children's Research Centre, University Children's Hospital, Zurich, Switzerland
| | - Mathieu Chicard
- SiRIC RTOP (Recherche Translationelle en Oncologie Pediatrique), Institut Curie, Paris, France
| | - Yasmine Iddir
- SiRIC RTOP (Recherche Translationelle en Oncologie Pediatrique), Institut Curie, Paris, France
| | - Alexandra Saint-Charles
- SiRIC RTOP (Recherche Translationelle en Oncologie Pediatrique), Institut Curie, Paris, France
| | - Virginia Di Paolo
- Department of Pediatric Haematology/Oncology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Lucia Tombolan
- Institute of Pediatric Research, Fondazione Città della Speranza, Padova, Italy
| | - Susanne A. Gatz
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Ewa Aladowicz
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
| | - Paula Proszek
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
- Molecular Diagnostics, Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Sabri Jamal
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
- Molecular Diagnostics, Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Reda Stankunaite
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
- Molecular Diagnostics, Royal Marsden NHS Foundation Trust, London, United Kingdom
- Centre for Evolution and Cancer, The Institute of Cancer Research, London, United Kingdom
| | - Deborah Hughes
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
- Molecular Diagnostics, Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Paul Carter
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
- Molecular Diagnostics, Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Elisa Izquierdo
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
- Molecular Diagnostics, Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Ajla Wasti
- Children & Young People's Unit, Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Julia C. Chisholm
- Children & Young People's Unit, Royal Marsden NHS Foundation Trust, London, United Kingdom
- Division of Clinical Studies, The Institute of Cancer Research, London, United Kingdom
| | - Sally L. George
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
- Children & Young People's Unit, Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Erika Pace
- Children & Young People's Unit, Royal Marsden NHS Foundation Trust, London, United Kingdom
- Department of Diagnostic Radiology, Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Louis Chesler
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
- Children & Young People's Unit, Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Isabelle Aerts
- SiRIC RTOP (Recherche Translationelle en Oncologie Pediatrique), Institut Curie, Paris, France
| | - Gaelle Pierron
- SiRIC RTOP (Recherche Translationelle en Oncologie Pediatrique), Institut Curie, Paris, France
| | - Sakina Zaidi
- INSERM U830, Équipe Labellisée LNCC, PSL Research University, SIREDO Oncology Centre, Institut Curie, Paris, France
| | - Olivier Delattre
- INSERM U830, Équipe Labellisée LNCC, PSL Research University, SIREDO Oncology Centre, Institut Curie, Paris, France
| | - Didier Surdez
- INSERM U830, Équipe Labellisée LNCC, PSL Research University, SIREDO Oncology Centre, Institut Curie, Paris, France
- Bone Sarcoma Research Laboratory, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Anna Kelsey
- Department of Pediatric Histopathology, Manchester University Foundation Trust, Manchester, United Kingdom
| | - Michael Hubank
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
- Molecular Diagnostics, Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Paolo Bonvini
- Institute of Pediatric Research, Fondazione Città della Speranza, Padova, Italy
| | - Gianni Bisogno
- Department of Woman's and Children's Health, Hematology and Oncology Unit, University of Padova, Padova, Italy
| | - Angela Di Giannatale
- Department of Pediatric Haematology/Oncology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Gudrun Schleiermacher
- SiRIC RTOP (Recherche Translationelle en Oncologie Pediatrique), Institut Curie, Paris, France
- Department of Pediatric Oncology, Hospital Group, Institut Curie, Paris, France
| | - Beat W. Schäfer
- Department of Oncology and Children's Research Centre, University Children's Hospital, Zurich, Switzerland
| | - Godelieve A.M. Tytgat
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Experimental Immunohematology, Sanquin, Amsterdam, the Netherlands
| | - Janet Shipley
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
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Poli E, Barbon V, Lucchetta S, Cattelan M, Santoro L, Zin A, Milano GM, Zanetti I, Bisogno G, Bonvini P. Immunoreactivity against fibroblast growth factor 8 in alveolar rhabdomyosarcoma patients and its involvement in tumor aggressiveness. Oncoimmunology 2022; 11:2096349. [PMID: 35813575 PMCID: PMC9262361 DOI: 10.1080/2162402x.2022.2096349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Rhabdomyosarcoma (RMS) is an aggressive pediatric soft tissue sarcoma characterized by a very poor prognosis when relapses occur after front-line therapy. Therefore, a major challenge for patients’ management remains the identification of markers associated with refractory and progressive disease. In this context, cancer autoantibodies are natural markers of disease onset and progression, useful to unveil novel therapeutic targets. Herein, we matched autoantibody profiling of alveolar RMS (ARMS) patients with genes under regulatory control of PAX3-FOXO1 transcription factor and revealed fibroblast growth factor 8 (FGF8) as a novel ARMS tumor antigen of diagnostic, prognostic, and therapeutic potential. We demonstrated that high levels of FGF8 autoantibodies distinguished ARMS patients from healthy subjects and represented an independent prognostic factor of better event-free survival. FGF8 was overexpressed in ARMS tumors compared to other types of pediatric soft tissue sarcomas, acting as a positive regulator of cell signaling. Indeed, FGF8 was capable of stimulating ARMS cells migration and expression of pro-angiogenic and metastasis-related factors, throughout MAPK signaling activation. Of note, FGF8 was found to increase in recurrent tumors, independently of PAX3-FOXO1 expression dynamics. Risk of recurrence correlated positively with FGF8 expression levels at diagnosis and reduced FGF8 autoantibodies titer, almost as if to suggest a failure of the immune response to control tumor growth in recurring patients. This study provides evidence about the crucial role of FGF8 in ARMS and the protective function of natural autoantibodies, giving new insights into ARMS biology and laying the foundations for the development of new therapeutic strategies.
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Affiliation(s)
- Elena Poli
- Department of Woman’s and Children’s Health Hematology and Oncology Unit, University of Padua, Padua, Italy
| | - Vanessa Barbon
- Department of Woman’s and Children’s Health Hematology and Oncology Unit, University of Padua, Padua, Italy
| | - Silvia Lucchetta
- Department of Woman’s and Children’s Health Hematology and Oncology Unit, University of Padua, Padua, Italy
| | - Manuela Cattelan
- Department of Statistical Sciences, University of Padua, Padua, Italy
| | - Luisa Santoro
- Department of Medicine, Surgical Pathology and Cytopathology Unit, University of Padua, Padua, Italy
| | - Angelica Zin
- Fondazione Città Della Speranza, Institute of Pediatric Research (IRP), Padua, Italy
| | - Giuseppe Maria Milano
- Department of Pediatric Hematology and Oncology and of Cell and Gene Therapy, Scientific Institute for Research and Healthcare (IRCCS), Bambino Gesù Childrens’ Hospital, Rome, Italy
| | - Ilaria Zanetti
- Department of Woman’s and Children’s Health Hematology and Oncology Unit, University of Padua, Padua, Italy
| | - Gianni Bisogno
- Department of Woman’s and Children’s Health Hematology and Oncology Unit, University of Padua, Padua, Italy
| | - Paolo Bonvini
- Fondazione Città Della Speranza, Institute of Pediatric Research (IRP), Padua, Italy
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Tombolan L, Rossi E, Binatti A, Zin A, Manicone M, Facchinetti A, Lucchetta S, Carmen Affinita M, Bonvini P, Bortoluzzi S, Zamarchi R, Bisogno G. Clinical significance of circulating tumor cells and cell-free DNA in pediatric rhabdomyosarcoma. Mol Oncol 2022; 16:2071-2085. [PMID: 35212153 PMCID: PMC9120897 DOI: 10.1002/1878-0261.13197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 01/19/2022] [Accepted: 02/21/2022] [Indexed: 11/10/2022] Open
Abstract
Liquid biopsy analysis represents a powerful and noninvasive tool to uncover biomarkers for disseminated disease assessment and longitudinal monitoring of patients. Herein, we explored the value of circulating and disseminated tumor cells (CTC and DTC, respectively) and cell‐free DNA (cfDNA) in pediatric rhabdomyosarcoma (RMS). Peripheral blood and bone marrow samples were analyzed to detect and enumerate CTC and DTC, respectively. We used the epithelial cellular adhesion molecule (EpCAM)‐based CellSearch platform coupled with an automatic device to collect both EpCAM‐positive and EpCAM‐low/negative CTCs. The standard assay was implemented, including the mesenchymal marker desmin. For selected cases, we molecularly profiled primary tumors and liquid biopsy biomarkers using whole‐exome sequencing and droplet digital PCR, respectively. RMS patients with metastatic disease had a significantly higher number of CTCs compared to those with localized disease, whereas DTCs were detected independently of disease presentation. The use of the desmin marker remarkably increased the identification of CTCs and DTCs in RMS samples. Of note, CTC clusters were detected in RMS patients with disseminated disease. Further, cfDNA and CTC molecular features closely reflected the molecular makeup of primary tumors and informed of disease course.
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Affiliation(s)
- Lucia Tombolan
- Institute of Pediatric Research, Fondazione Città della Speranza, Padova, Italy.,Department of Woman's and Children's Health, Hematology and Oncology Unit, University of Padova, Padova, Italy
| | - Elisabetta Rossi
- Department of Surgery, Oncology and Gastroenterology, Oncology Section, University of Padova, Padova, Italy.,Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
| | - Andrea Binatti
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Angelica Zin
- Institute of Pediatric Research, Fondazione Città della Speranza, Padova, Italy
| | | | - Antonella Facchinetti
- Department of Surgery, Oncology and Gastroenterology, Oncology Section, University of Padova, Padova, Italy.,Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
| | - Silvia Lucchetta
- Department of Woman's and Children's Health, Hematology and Oncology Unit, University of Padova, Padova, Italy
| | - Maria Carmen Affinita
- Department of Woman's and Children's Health, Hematology and Oncology Unit, University of Padova, Padova, Italy
| | - Paolo Bonvini
- Institute of Pediatric Research, Fondazione Città della Speranza, Padova, Italy
| | | | - Rita Zamarchi
- Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
| | - Gianni Bisogno
- Department of Woman's and Children's Health, Hematology and Oncology Unit, University of Padova, Padova, Italy
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Poli E, Cattelan M, Zanetti I, Scagnellato A, Giordano G, Zin A, Bisogno G, Bonvini P. Autoantibody profiling of alveolar rhabdomyosarcoma patients unveils tumor-associated antigens with diagnostic and prognostic significance. Oncoimmunology 2021; 10:1954765. [PMID: 34367733 PMCID: PMC8312597 DOI: 10.1080/2162402x.2021.1954765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Alveolar rhabdomyosarcoma (ARMS) is a highly aggressive subtype of childhood cancer for which efficacious treatments are needed. Immunotherapy represents a new therapeutic opportunity to pursue, but it requires the identification of worthwhile tumor antigens. Herein, we exploited the capacity of ARMS autoantibodies to recognize tumor self-antigens, probing human protein microarrays with plasma from ARMS patients and healthy subjects. We assessed the autoantibody response in ARMS, validated data with independent techniques, and estimated autoantibodies diagnostic and prognostic significance by receiver-operator characteristic curves (ROC), uni- and multivariate analysis. Of the 48 tumor antigens identified, General Transcription Factor II-I (GTF2i) and Protocadherin Gamma Subfamily C5 (PCDHGC5) were selected as candidate targets to validate tumor-restricted antigen expression and autoantibody reactivity through an independent technique and wider cohort of cases. GTF2i and PCDHGC5 overexpression was observed in tumor tissues compared to normal counterparts, and anti-GTF2i and -PCDHGC5 autoantibodies were found able to distinguish ARMS patients from healthy subjects as well as cases with different histology. Moreover, low levels of PCDHGC5 autoantibodies characterized patients with worse event-free survival and proved to be an independent negative prognostic factor. This approach provided the first comprehensive autoantibody profile of ARMS, gave novel insights into the immune response of this malignancy and paved the way toward novel potential antibody-based therapeutic applications suitable to improve the survival of ARMS patients.
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Affiliation(s)
- Elena Poli
- Department of Woman's and Children's Health Hematology and Oncology Unit, University of Padua, Padua, Italy
| | - Manuela Cattelan
- Department of Statistical Sciences, University of Padua, Padua, Italy
| | - Ilaria Zanetti
- Department of Woman's and Children's Health Hematology and Oncology Unit, University of Padua, Padua, Italy
| | - Angela Scagnellato
- Department of Woman's and Children's Health Hematology and Oncology Unit, University of Padua, Padua, Italy
| | - Giuseppe Giordano
- Department of Woman's and Children's Health Hematology and Oncology Unit, University of Padua, Padua, Italy.,Institute of Pediatric Research (IRP), Fondazione Città Della Speranza, Padua, Italy
| | - Angelica Zin
- Institute of Pediatric Research (IRP), Fondazione Città Della Speranza, Padua, Italy
| | - Gianni Bisogno
- Department of Woman's and Children's Health Hematology and Oncology Unit, University of Padua, Padua, Italy
| | - Paolo Bonvini
- Institute of Pediatric Research (IRP), Fondazione Città Della Speranza, Padua, Italy
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Bonvini P, Rossi E, Zin A, Manicone M, Vidotto R, Facchinetti A, Tombolan L, Affinita MC, Santoro L, Zamarchi R, Bisogno G. Case Report: Circulating Tumor Cells as a Response Biomarker in ALK-Positive Metastatic Inflammatory Myofibroblastic Tumor. Front Pediatr 2021; 9:652583. [PMID: 33996693 PMCID: PMC8116882 DOI: 10.3389/fped.2021.652583] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/31/2021] [Indexed: 12/13/2022] Open
Abstract
Inflammatory myofibroblastic tumors (IMTs) are locally aggressive malignancies occurring at various sites. Surgery is the mainstay of treatment and prognosis is generally good. For children with unresectable or metastatic tumors, however, outcome is particularly severe, limited also by the lack of predictive biomarkers of therapy efficacy and disease progression. Blood represents a minimally invasive source of cancer biomarkers for real-time assessment of tumor growth, particularly when it involves the analysis of circulating tumor cells (CTC). As CTCs potentially represent disseminated disease, their detection in the blood correlates with the presence of metastatic lesions and may reflect tumor response to treatment. Herein, we present a case report of a 19-year-old boy with an ALK-positive IMT of the bladder, proximal osteolytic and multiple bilateral lung lesions, who received ALK inhibitor entrectinib postoperatively and underwent longitudinal CTC analysis during treatment. Antitumor activity of entrectinib was demonstrated and was accompanied by regression of lung lesions, elimination of CTCs from the blood and no development of relapses afterwards. Therapy continued without any clinical sign of progression and 24 months since the initiation of treatment the patient remains symptom-free and disease-free.
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Affiliation(s)
- Paolo Bonvini
- Institute of Pediatric Research, Fondazione Città della Speranza, Padova, Italy
| | - Elisabetta Rossi
- Department of Surgery, Oncology and Gastroenterology, Oncology Section, University of Padova, Padova, Italy
- Veneto Institute of Oncology IOV - IRCCS, Padova, Italy
| | - Angelica Zin
- Institute of Pediatric Research, Fondazione Città della Speranza, Padova, Italy
| | | | | | - Antonella Facchinetti
- Department of Surgery, Oncology and Gastroenterology, Oncology Section, University of Padova, Padova, Italy
- Veneto Institute of Oncology IOV - IRCCS, Padova, Italy
| | - Lucia Tombolan
- Hematology and Oncology Unit, Department of Women's and Children's Health, University of Padova, Padova, Italy
| | - Maria Carmen Affinita
- Hematology and Oncology Unit, Department of Women's and Children's Health, University of Padova, Padova, Italy
| | - Luisa Santoro
- Department of Medicine, Padova University Hospital, Padova, Italy
| | - Rita Zamarchi
- Veneto Institute of Oncology IOV - IRCCS, Padova, Italy
| | - Gianni Bisogno
- Hematology and Oncology Unit, Department of Women's and Children's Health, University of Padova, Padova, Italy
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7
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D’Agostino S, Tombolan L, Saggioro M, Frasson C, Rampazzo E, Pellegrini S, Favaretto F, Biz C, Ruggieri P, Gamba P, Bonvini P, Aveic S, Giovannoni R, Pozzobon M. Rhabdomyosarcoma Cells Produce Their Own Extracellular Matrix With Minimal Involvement of Cancer-Associated Fibroblasts: A Preliminary Study. Front Oncol 2021; 10:600980. [PMID: 33585217 PMCID: PMC7878542 DOI: 10.3389/fonc.2020.600980] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 12/09/2020] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND The interplay between neoplastic cells and surrounding extracellular matrix (ECM) is one of the determinant elements for cancer growth. The remodeling of the ECM by cancer-associated fibroblasts (CAFs) shapes tumor microenvironment by depositing and digesting ECM proteins, hence promoting tumor growth and invasion. While for epithelial tumors CAFs are well characterized, little is known about the stroma composition of mesenchymal cancers, such as in rhabdomyosarcoma (RMS), the most common soft tissue sarcoma during childhood and adolescence. The aim of this work is to identify the importance of CAFs in specifying RMS microenvironment and the role of these stromal cells in RMS growth. METHODS We assessed in two dimensional (2D) and three dimensional (3D) systems the attraction between RMS cells and fibroblasts using epithelial colon cancer cell line as control. CAFs were studied in a xenogeneic mouse model of both tumor types and characterized in terms of fibroblast activation protein (FAP), mouse PDGFR expression, metalloproteases activation, and ECM gene and protein expression profiling. RESULTS In 2D model, the rate of interaction between stromal and malignant cells was significantly lower in RMS with respect to colon cancer. Particularly, in 3D system, RMS spheroids tended to dismantle the compact aggregate when grown on the layer of stromal cells. In vivo, despite the well-formed tumor mass, murine CAFs were found in low percentage in RMS xenogeneic samples. CONCLUSIONS Our findings support the evidence that, differently from epithelial cancers, RMS cells are directly involved in their own ECM remodeling, and less dependent on CAFs support for cancer cell growth.
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Affiliation(s)
- Stefania D’Agostino
- Stem Cells and Regenerative Medicine Lab, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy
- Department of Women and Children Health, University of Padova, Padova, Italy
| | - Lucia Tombolan
- Department of Women and Children Health, University of Padova, Padova, Italy
- Pediatric Solid Tumors Laboratory, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy
| | - Mattia Saggioro
- Stem Cells and Regenerative Medicine Lab, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy
- Department of Women and Children Health, University of Padova, Padova, Italy
| | - Chiara Frasson
- Onco-Hematology Laboratory, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy
| | - Elena Rampazzo
- Department of Women and Children Health, University of Padova, Padova, Italy
- Brain Tumors Laboratory, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy
| | - Stefania Pellegrini
- Department of Women and Children Health, University of Padova, Padova, Italy
| | - Francesca Favaretto
- Department of Medicine, Internal Medicine 3, University of Padua, Padua, Italy
| | - Carlo Biz
- Department of Surgery, Oncology and Gastroenterology DiSCOG, Orthopedic Clinic, University of Padova, Padova, Italy
| | - Pietro Ruggieri
- Department of Surgery, Oncology and Gastroenterology DiSCOG, Orthopedic Clinic, University of Padova, Padova, Italy
| | - Piergiorgio Gamba
- Department of Women and Children Health, University of Padova, Padova, Italy
| | - Paolo Bonvini
- Pediatric Solid Tumors Laboratory, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy
| | - Sanja Aveic
- Neuroblastoma Laboratory, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy
- Department of Dental Materials and Biomaterials Research, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Hospital, Aachen, Germany
| | | | - Michela Pozzobon
- Stem Cells and Regenerative Medicine Lab, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy
- Department of Women and Children Health, University of Padova, Padova, Italy
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8
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Tombolan L, Rossi E, Zin A, Santoro L, Bonvini P, Zamarchi R, Bisogno G. Corrigendum to 'Pediatric sarcomas display a variable EpCAM expression in a histology-dependent manner' [Translational Oncology 13 (2020) 100846]. Transl Oncol 2021; 14:101024. [PMID: 33486312 DOI: 10.1016/j.tranon.2021.101024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Affiliation(s)
- Lucia Tombolan
- Institute of Pediatric Research, Fondazione Città della Speranza, Padua, Italy.
| | - Elisabetta Rossi
- Department of Surgery, Oncology and Gastroenterology, Oncology Section, University of Padova, Padova, Italy; Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
| | - Angelica Zin
- Institute of Pediatric Research, Fondazione Città della Speranza, Padua, Italy
| | - Luisa Santoro
- University Hospital of Padova, Institute of Pathology, Padua, Italy
| | - Paolo Bonvini
- Institute of Pediatric Research, Fondazione Città della Speranza, Padua, Italy
| | - Rita Zamarchi
- Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
| | - Gianni Bisogno
- Department of Woman's and Children's Health, Hematology and Oncology Unit, University of Padua, Padua, Italy
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9
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Tombolan L, Millino C, Pacchioni B, Cattelan M, Zin A, Bonvini P, Bisogno G. Circulating miR-26a as Potential Prognostic Biomarkers in Pediatric Rhabdomyosarcoma. Front Genet 2020; 11:606274. [PMID: 33362864 PMCID: PMC7758343 DOI: 10.3389/fgene.2020.606274] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 11/17/2020] [Indexed: 12/14/2022] Open
Abstract
Rhabdomyosarcoma (RMS) arises from myogenic precursors that fail to complete muscle differentiation and represents the most frequent soft tissue sarcoma in children. Two major histological subtypes are recognized: alveolar RMS, characterized by a more aggressive behavior and a greater proneness to metastasis, and embryonal RMS which accounts for the 80% of cases and carries a better prognosis. Despite the survival of patients with localized tumors has progressively improved, RMS remains a challenging disease especially for metastatic patients and in case of progressive or recurrent disease after front-line therapy. MicroRNAs, a class of small non-coding RNA, have emerged as crucial players in cancer development and progression, and their detection in plasma (circulating miRNAs) represents a promising minimally invasive approach that deserve to be exploited in clinical practice. We evaluated the utility of circulating miRNAs as diagnostic and prognostic biomarkers in children with RMS profiling miRNAs from plasma of a small cohort of RMS patients and healthy donors (HD) using a qPCR Cancer Panel. An assessment of hemolysis status of plasma using miR-451/miR-23a ratio was performed as pre-analytical analysis. Statistical analysis revealed that miRNAs expression pattern clearly distinguished RMS patients from HD (p < 0.05). Interestingly, plasma levels of muscle-specific miR-206 were found to be significantly increased in RMS patients compared to HD, whereas levels of three potential tumor-suppressor miRNAs, miR-26a and miR-30b/30c, were found lower. Reduced levels of circulating miR-26a and miR-30b/c were further measured in an independent larger cohort of patients (validation set) by digital droplet PCR. In particular, we evidenced that miR-26a absolute plasma levels were associated with fusion status and adverse outcome (p < 0.05). Taken together, these findings demonstrate the potential of circulating miRNA as diagnostic and prognostic biomarker in children affected by this malignancy and enforced the key role of miR-26a in pediatric rhabdomyosarcoma.
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Affiliation(s)
- Lucia Tombolan
- Institute of Pediatric Research (IRP), Fondazione Città della Speranza, Padua, Italy
| | - Caterina Millino
- Functional Genomics Laboratory, Department of Biology, University of Padua, Padua, Italy
| | - Beniamina Pacchioni
- Functional Genomics Laboratory, Department of Biology, University of Padua, Padua, Italy
| | - Manuela Cattelan
- Department of Statistical Sciences, University of Padua, Padua, Italy
| | - Angelica Zin
- Institute of Pediatric Research (IRP), Fondazione Città della Speranza, Padua, Italy
| | - Paolo Bonvini
- Institute of Pediatric Research (IRP), Fondazione Città della Speranza, Padua, Italy
| | - Gianni Bisogno
- Institute of Pediatric Research (IRP), Fondazione Città della Speranza, Padua, Italy.,Department of Woman's and Children's Health, Hematology and Oncology Unit, University of Padua, Padua, Italy
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10
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Rossi E, Zin A, Facchinetti A, Poggiana C, Tombolan L, Affinita MC, Bonvini P, Santoro L, Schiavi F, Bisogno G, Zamarchi R. Liquid Biopsy in Pediatric Renal Cancer: Stage I and Stage IV Cases Compared. Diagnostics (Basel) 2020; 10:E810. [PMID: 33053902 PMCID: PMC7599903 DOI: 10.3390/diagnostics10100810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/05/2020] [Accepted: 10/09/2020] [Indexed: 12/29/2022] Open
Abstract
Pediatric renal cancer is rare, and robust evidence for treatment recommendations is lacking. In the perspective of personalized medicine, clinicians need new biomarkers to improve risk stratification and patients' follow-up. Herein, we analyzed some liquid biopsy tools, which have been never tested in pediatric renal cancer: namely, circulating tumor cells (CTCs); the expression of M30, an apoptosis marker, to test CTC metastatic potential; and c-MET expression in CTCs, because of its role in renal cancer progression and drug-resistance. Furthermore, we evaluated the Circulating Endothelial Cells (CECs), whose utility we previously demonstrated in adult metastatic renal cancer treated with anti-angiogenic therapy. We compared two renal cell carcinomas of clear-cell type, stage I and IV, which underwent surgery and surgery plus Sunitinib, respectively. Baseline CTC level and its changes during follow-up were consistent with patients' outcome. In case 2, stage IV, the analysis of CECs performed during Sunitinib revealed a late response to treatment consistent with poor outcome, as the finding of M30-negative, viable cells. Noteworthily, few CTCs were MET-positive in both cases. Our study highlights the feasibility for a change in the prognostic approach and follow-up of childhood renal cancer, with a view to guide a better treatment design.
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Affiliation(s)
- Elisabetta Rossi
- Department of Surgery, Oncology and Gastroenterology, Oncology Section, University of Padova, Padua, Italy; (E.R.); (A.F.)
- Veneto Institute of Oncology IOV—IRCCS, Padua, Italy; (C.P.); (F.S.)
| | - Angelica Zin
- Institute of Pediatric Research, Fondazione Città della Speranza, Padua, Italy; (A.Z.); (L.T.); (P.B.)
| | - Antonella Facchinetti
- Department of Surgery, Oncology and Gastroenterology, Oncology Section, University of Padova, Padua, Italy; (E.R.); (A.F.)
- Veneto Institute of Oncology IOV—IRCCS, Padua, Italy; (C.P.); (F.S.)
| | - Cristina Poggiana
- Veneto Institute of Oncology IOV—IRCCS, Padua, Italy; (C.P.); (F.S.)
| | - Lucia Tombolan
- Institute of Pediatric Research, Fondazione Città della Speranza, Padua, Italy; (A.Z.); (L.T.); (P.B.)
| | - Maria Carmen Affinita
- Department of Woman’s and Children’s Health, Hematology and Oncology Unit, University of Padua, Padua, Italy; (M.C.A.); (G.B.)
| | - Paolo Bonvini
- Institute of Pediatric Research, Fondazione Città della Speranza, Padua, Italy; (A.Z.); (L.T.); (P.B.)
| | - Luisa Santoro
- University Hospital of Padova, Institute of Pathology, Padua, Italy;
| | - Francesca Schiavi
- Veneto Institute of Oncology IOV—IRCCS, Padua, Italy; (C.P.); (F.S.)
| | - Gianni Bisogno
- Department of Woman’s and Children’s Health, Hematology and Oncology Unit, University of Padua, Padua, Italy; (M.C.A.); (G.B.)
| | - Rita Zamarchi
- Veneto Institute of Oncology IOV—IRCCS, Padua, Italy; (C.P.); (F.S.)
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11
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Tombolan L, Rossi E, Zin A, Santoro L, Bonvini P, Zamarchi R, Bisogno G. Pediatric sarcomas display a variable EpCAM expression in a histology-dependent manner. Transl Oncol 2020; 13:100846. [PMID: 32805674 PMCID: PMC7453064 DOI: 10.1016/j.tranon.2020.100846] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/17/2020] [Accepted: 07/20/2020] [Indexed: 01/06/2023] Open
Abstract
EpCAM is a transmembrane glycoprotein typically overexpressed in cancer of epithelial origin and mainly involved in the epithelial-to–mesenchymal transition (EMT) of tumor cells that spread and disseminate. Strategies for the targeting and capture of EpCAM-expressing tumor cells are showing promise in cancers prone to metastatize, both as diagnostic tools and potential therapies. Sarcomas are among the most aggressive tumors in children, with a common mesenchymal origin that comprises both soft tissue sarcomas (STS) and bone sarcomas. The aim of this study was to assess EpCAM expression in pediatric sarcomas and correlate its expression with disease progression. To do so, we analyzed a set of cell lines and primary tumor tissues from rhabdomyosarcoma (RMS), Ewing sarcoma (ES), synovial sarcoma (SS) and desmoplastic small round cell tumor (DSRCT) STS, or osteosarcoma (OS) bone cancer. We demonstrated that EpCAM was variably expressed in pediatric sarcomas, with DSRCT, a rare, aggressive and almost fatal tumor type, characterized by the highest EpCAM expression levels. Interestingly, although EpCAM expression was lower in RMS tumors, high levels at diagnosis correlated with reduced patients' overall survival (p < 0.05). Indeed, membrane-bound EpCAM was detected in circulating sarcoma tumor cells, revealing its potential to be used as dissemination biomarker in this type of childhood cancers. This reinforces the concept that pediatric sarcomas do express both epithelial and mesenchymal markers and reside in an intermediate condition that most likely contributes to their aggressive phenotype and low survival rate.
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Affiliation(s)
- Lucia Tombolan
- Institute of Pediatric Research, Fondazione Città della Speranza, Padua, Italy.
| | - Elisabetta Rossi
- Department of Surgery, Oncology and Gastroenterology, Oncology Section, University of Padova, Padova, Italy; Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
| | - Angelica Zin
- Institute of Pediatric Research, Fondazione Città della Speranza, Padua, Italy
| | - Luisa Santoro
- University Hospital of Padova, Institute of Pathology, Padua, Italy
| | - Paolo Bonvini
- Institute of Pediatric Research, Fondazione Città della Speranza, Padua, Italy
| | - Rita Zamarchi
- Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
| | - Gianni Bisogno
- Department of Woman's and Children's Health, Hematology and Oncology Unit, University of Padua, Padua, Italy
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12
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Germano G, Morello G, Aveic S, Pinazza M, Minuzzo S, Frasson C, Persano L, Bonvini P, Viola G, Bresolin S, Tregnago C, Paganin M, Pigazzi M, Indraccolo S, Basso G. ZNF521 sustains the differentiation block in MLL-rearranged acute myeloid leukemia. Oncotarget 2018; 8:26129-26141. [PMID: 28412727 PMCID: PMC5432245 DOI: 10.18632/oncotarget.15387] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 01/31/2017] [Indexed: 12/31/2022] Open
Abstract
Zinc finger protein 521 (ZNF521) is a multiple zinc finger transcription factor and a strong candidate as regulator of hematopoietic stem cell homeostasis. Recently, independent gene expression profile studies have evidenced a positive correlation between ZNF521 mRNA overexpression and MLL-rearranged acute myeloid leukemia (AML), leaving open the question on the role of ZNF521 in this subtype of leukemia. In this study, we sought to analyze the effect of ZNF521 depletion on MLL-rearranged AML cell lines and MLL-AF9 xenograft primary cells. Knockdown of ZNF521 with short-hairpin RNA (shRNA) led to decreased leukemia proliferation, reduced colony formation and caused cell cycle arrest in MLL-rearranged AML cell lines. Importantly, we showed that loss of ZNF521 substantially caused differentiation of both MLL-rearranged cell lines and primary cells. Moreover, gene profile analysis in ZNF521-silenced THP-1 cells revealed a loss of MLL-AF9-directed leukemic signature and an increase of the differentiation program. Finally, we determined that both MLL-AF9 and MLL-ENL fusion proteins directly interacted with ZNF521 promoter activating its transcription. In conclusion, our findings identify ZNF521 as a critical effector of MLL fusion proteins in blocking myeloid differentiation and highlight ZNF521 as a potential therapeutic target for this subtype of leukemia.
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Affiliation(s)
- Giuseppe Germano
- Foundation Institute of Pediatric Research Città della Speranza, Padova, Italy
| | - Giulia Morello
- Foundation Institute of Pediatric Research Città della Speranza, Padova, Italy
| | - Sanja Aveic
- Foundation Institute of Pediatric Research Città della Speranza, Padova, Italy
| | - Marica Pinazza
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Italy
| | - Sonia Minuzzo
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Italy
| | - Chiara Frasson
- Department of Woman and Child Health, University of Padova, Italy
| | - Luca Persano
- Foundation Institute of Pediatric Research Città della Speranza, Padova, Italy
| | - Paolo Bonvini
- Foundation Institute of Pediatric Research Città della Speranza, Padova, Italy
| | - Giampietro Viola
- Department of Woman and Child Health, University of Padova, Italy
| | - Silvia Bresolin
- Department of Woman and Child Health, University of Padova, Italy
| | - Claudia Tregnago
- Department of Woman and Child Health, University of Padova, Italy
| | | | - Martina Pigazzi
- Department of Woman and Child Health, University of Padova, Italy
| | - Stefano Indraccolo
- Immunology and Molecular Oncology Unit, Istituto Oncologico Veneto IRCCS, Padova, Italy
| | - Giuseppe Basso
- Department of Woman and Child Health, University of Padova, Italy
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13
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Smith KM, Fagan PC, Pomari E, Germano G, Frasson C, Walsh C, Silverman I, Bonvini P, Li G. Antitumor Activity of Entrectinib, a Pan-TRK, ROS1, and ALK Inhibitor, in ETV6-NTRK3-Positive Acute Myeloid Leukemia. Mol Cancer Ther 2017; 17:455-463. [PMID: 29237803 DOI: 10.1158/1535-7163.mct-17-0419] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 07/10/2017] [Accepted: 11/21/2017] [Indexed: 11/16/2022]
Abstract
Activation of tropomyosin receptor kinase (TRK) family tyrosine kinases by chromosomal rearrangement has been shown to drive a wide range of solid tumors and hematologic malignancies. TRK fusions are actionable targets as evidenced by recent clinical trial results in solid tumors. Entrectinib (RXDX-101) is an investigational, orally available, CNS-active, highly potent, and selective kinase inhibitor against TRKA/B/C, ROS1, and ALK kinase activities. Here, we demonstrate that TRK kinase inhibition by entrectinib selectively targets preclinical models of TRK fusion-driven hematologic malignancies. In acute myelogenous leukemia (AML) cell lines with endogenous expression of the ETV6-NTRK3 fusion gene, entrectinib treatment blocked cell proliferation and induced apoptotic cell death in vitro with subnanomolar IC50 values. Phosphorylation of the ETV6-TRKC fusion protein and its downstream signaling effectors was inhibited by entrectinib treatment in a dose-dependent manner. In animal models, entrectinib treatment at clinically relevant doses resulted in tumor regression that was accompanied by elimination of residual cancer cells from the bone marrow. Our preclinical data demonstrate the potential of entrectinib as an effective treatment for patients with TRK fusion-driven AML and other hematologic malignancies. Mol Cancer Ther; 17(2); 455-63. ©2017 AACR.
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Affiliation(s)
| | | | - Elena Pomari
- Foundation Institute of Pediatric Research Città della Speranza, Padova, Italy.,Department of Woman and Child Health, University-Hospital of Padova, Padova, Italy
| | - Giuseppe Germano
- Foundation Institute of Pediatric Research Città della Speranza, Padova, Italy
| | - Chiara Frasson
- Foundation Institute of Pediatric Research Città della Speranza, Padova, Italy
| | | | | | - Paolo Bonvini
- Foundation Institute of Pediatric Research Città della Speranza, Padova, Italy
| | - Gang Li
- Ignyta, Inc., San Diego, California
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14
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Pomari E, Lovisa F, Carraro E, Primerano S, D'Amore ESG, Bonvini P, Nigro LL, Vito RD, Vinti L, Farruggia P, Pillon M, Basso G, Basso K, Mussolin L. Clinical impact of miR-223 expression in pediatric T-Cell lymphoblastic lymphoma. Oncotarget 2017; 8:107886-107898. [PMID: 29296210 PMCID: PMC5746112 DOI: 10.18632/oncotarget.22386] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 10/28/2017] [Indexed: 01/24/2023] Open
Abstract
Although probability of event-free survival in pediatric lymphoblastic T-cell lymphoma (T-LBL) is about 75%, survival in relapsed patients is very poor, so the identification of new molecular markers is crucial for treatment optimization. Here, we demonstrated that the over-expression of miR-223 promotes tumor T-LBL cell growth, migration and invasion in vitro. We found out that SIK1, an anti-metastatic protein, is a direct target of miR-223 and consequently is significantly reduced in miR-223-overexpressing tumor cells. We measured miR-223 expression levels at diagnosis in tumor biopsies from 67 T-LBL pediatric patients for whom complete clinical and follow up data were available, and we found that high miR-223 expression (above the median value) is associated with worse prognosis (PFS 66% vs 94%, P=0.0036). In addition, the multivariate analysis, conducted taking into account miR-223 expression level and other molecular and clinical characteristics, showed that only high level of miR-223 is an independent factor for worse prognosis. MiR-223 represents a promising marker for treatment stratification in pediatric patients with T-LBL and we provide the first evidence of miR-223 potential role as oncomir by SIK1 repression.
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Affiliation(s)
- Elena Pomari
- Department of Women's and Children's Health, Clinic of Pediatric Hemato-Oncology, University of Padova, 35128 Padova, Italy.,Centre for Tropical Diseases, Ospedale Sacro Cuore-Don Calabria, 37024 Negrar, Italy
| | - Federica Lovisa
- Department of Women's and Children's Health, Clinic of Pediatric Hemato-Oncology, University of Padova, 35128 Padova, Italy.,Istituto di Ricerca Pediatrica, Fondazione Città della Speranza, 35127 Padova, Italy
| | - Elisa Carraro
- Department of Women's and Children's Health, Clinic of Pediatric Hemato-Oncology, University of Padova, 35128 Padova, Italy
| | - Simona Primerano
- Department of Women's and Children's Health, Clinic of Pediatric Hemato-Oncology, University of Padova, 35128 Padova, Italy.,Istituto di Ricerca Pediatrica, Fondazione Città della Speranza, 35127 Padova, Italy
| | | | - Paolo Bonvini
- Department of Women's and Children's Health, Clinic of Pediatric Hemato-Oncology, University of Padova, 35128 Padova, Italy.,Istituto di Ricerca Pediatrica, Fondazione Città della Speranza, 35127 Padova, Italy
| | - Luca Lo Nigro
- Center of Paediatric Haematology, Azienda Policlinico-OVE, 95123 Catania, Italy
| | - Rita De Vito
- Department of Paediatric Haemato-Oncology, IRCCS Ospedale Bambino Gesù, 00165 Roma, Italy
| | - Luciana Vinti
- Department of Paediatric Haemato-Oncology, IRCCS Ospedale Bambino Gesù, 00165 Roma, Italy
| | - Piero Farruggia
- Department of Paediatric Haemato-Oncology, ARNAS Ospedali Civico, G Di Cristina, 90127 Palermo, Italy
| | - Marta Pillon
- Department of Women's and Children's Health, Clinic of Pediatric Hemato-Oncology, University of Padova, 35128 Padova, Italy
| | - Giuseppe Basso
- Department of Women's and Children's Health, Clinic of Pediatric Hemato-Oncology, University of Padova, 35128 Padova, Italy
| | - Katia Basso
- Institute for Cancer Genetics, Department of Pathology and Cell Biology, Columbia University, NY 10027, New York, USA
| | - Lara Mussolin
- Department of Women's and Children's Health, Clinic of Pediatric Hemato-Oncology, University of Padova, 35128 Padova, Italy.,Istituto di Ricerca Pediatrica, Fondazione Città della Speranza, 35127 Padova, Italy
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15
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Peron M, Lovisa F, Poli E, Basso G, Bonvini P. Understanding the Interplay between Expression, Mutation and Activity of ALK Receptor in Rhabdomyosarcoma Cells for Clinical Application of Small-Molecule Inhibitors. PLoS One 2015; 10:e0132330. [PMID: 26147305 PMCID: PMC4493009 DOI: 10.1371/journal.pone.0132330] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 06/14/2015] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Receptor tyrosine kinases (RTKs) have a central role in cancer initiation and progression, since changes in their expression and activity potentially results in cell transformation. This concept is essential from a therapeutic standpoint, as clinical evidence indicates that tumours carrying deregulated RTKs are particularly susceptible to their activity but also to their inhibition. Rhabdomyosarcoma (RMS) is an aggressive childhood cancer where emerging therapies rely on the use kinase inhibitors, and among druggable kinases ALK represents a potential therapeutic target to commit efforts against. However, the functional relevance of ALK in RMS is not known, likewise the multi-component deregulated RTK profile to which ALK belongs. METHODS In this study we used RMS cell lines representative of the alveolar and embrional histotype and looked at ALK intracellular localization, activity and cell signalling. RESULTS We found that ALK was properly located at the plasma membrane of RMS cells, though in an unphosphorylated and inactive state due to intracellular tyrosine phosphatases (PTPases) activity. Indeed, increase of ALK phosphorylation was observed upon PTPase inhibition, as well as after ligand binding or protein overexpression. In these conditions, ALK signalling proceeded through the MAPK/ERK and PI3K/AKT pathways, and it was susceptible to ATP-competitive inhibitors exposure. However, drug-induced growth inhibition, cell cycle arrest and apoptosis did not correlate with ALK expression only, but relied also on the expression of other RTKs with akin drug binding affinity. Indeed, analysis of baseline and inducible RTK phosphorylation confirmed that RMS cells were susceptible to ALK kinase inhibitors even in the absence of the primary intended target, due to the presence of compensatory RTKs signalling pathways. CONCLUSIONS These data, hence, provided evidences of a potentially active role of ALK in RMS cells, but also suggest caution in considering ALK a major therapeutic target in this malignancy, particularly if expression and activity cannot be accurately determined.
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Affiliation(s)
- Marica Peron
- Clinica di Oncoematologia Pediatrica di Padova, Azienda Ospedaliera-Università di Padova, Padua, Italy
| | - Federica Lovisa
- Clinica di Oncoematologia Pediatrica di Padova, Azienda Ospedaliera-Università di Padova, Padua, Italy
| | - Elena Poli
- Clinica di Oncoematologia Pediatrica di Padova, Azienda Ospedaliera-Università di Padova, Padua, Italy
| | - Giuseppe Basso
- Clinica di Oncoematologia Pediatrica di Padova, Azienda Ospedaliera-Università di Padova, Padua, Italy
| | - Paolo Bonvini
- Clinica di Oncoematologia Pediatrica di Padova, Azienda Ospedaliera-Università di Padova, Padua, Italy
- Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy
- * E-mail:
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Lovisa F, Cozza G, Cristiani A, Cuzzolin A, Albiero A, Mussolin L, Pillon M, Moro S, Basso G, Rosolen A, Bonvini P. ALK kinase domain mutations in primary anaplastic large cell lymphoma: consequences on NPM-ALK activity and sensitivity to tyrosine kinase inhibitors. PLoS One 2015; 10:e0121378. [PMID: 25874976 PMCID: PMC4395299 DOI: 10.1371/journal.pone.0121378] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 01/31/2015] [Indexed: 12/18/2022] Open
Abstract
ALK inhibitor crizotinib has shown potent antitumor activity in children with refractory Anaplastic Large Cell Lymphoma (ALCL) and the opportunity to include ALK inhibitors in first-line therapies is oncoming. However, recent studies suggest that crizotinib-resistance mutations may emerge in ALCL patients. In the present study, we analyzed ALK kinase domain mutational status of 36 paediatric ALCL patients at diagnosis to identify point mutations and gene aberrations that could impact on NPM-ALK gene expression, activity and sensitivity to small-molecule inhibitors. Amplicon ultra-deep sequencing of ALK kinase domain detected 2 single point mutations, R335Q and R291Q, in 2 cases, 2 common deletions of exon 23 and 25 in all the patients, and 7 splicing-related INDELs in a variable number of them. The functional impact of missense mutations and INDELs was evaluated. Point mutations were shown to affect protein kinase activity, signalling output and drug sensitivity. INDELs, instead, generated kinase-dead variants with dominant negative effect on NPM-ALK kinase, in virtue of their capacity of forming non-functional heterocomplexes. Consistently, when co-expressed, INDELs increased crizotinib inhibitory activity on NPM-ALK signal processing, as demonstrated by the significant reduction of STAT3 phosphorylation. Functional changes in ALK kinase activity induced by both point mutations and structural rearrangements were resolved by molecular modelling and dynamic simulation analysis, providing novel insights into ALK kinase domain folding and regulation. Therefore, these data suggest that NPM-ALK pre-therapeutic mutations may be found at low frequency in ALCL patients. These mutations occur randomly within the ALK kinase domain and affect protein activity, while preserving responsiveness to crizotinib.
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Affiliation(s)
- Federica Lovisa
- Clinica di Oncoematologia Pediatrica di Padova, Azienda Ospedaliera-Università di Padova, Padua, Italy
| | - Giorgio Cozza
- Dipartimento di Scienze Biomediche, Università di Padova, Padua, Italy
| | - Andrea Cristiani
- Dipartimento di Scienze del Farmaco, Università di Padova, Padua, Italy
| | - Alberto Cuzzolin
- Dipartimento di Scienze del Farmaco, Università di Padova, Padua, Italy
| | | | - Lara Mussolin
- Clinica di Oncoematologia Pediatrica di Padova, Azienda Ospedaliera-Università di Padova, Padua, Italy; Istituto di Ricerca Pediatrica Città della Speranza, Padua, Italy
| | - Marta Pillon
- Clinica di Oncoematologia Pediatrica di Padova, Azienda Ospedaliera-Università di Padova, Padua, Italy
| | - Stefano Moro
- Dipartimento di Scienze del Farmaco, Università di Padova, Padua, Italy
| | - Giuseppe Basso
- Clinica di Oncoematologia Pediatrica di Padova, Azienda Ospedaliera-Università di Padova, Padua, Italy
| | - Angelo Rosolen
- Clinica di Oncoematologia Pediatrica di Padova, Azienda Ospedaliera-Università di Padova, Padua, Italy
| | - Paolo Bonvini
- Clinica di Oncoematologia Pediatrica di Padova, Azienda Ospedaliera-Università di Padova, Padua, Italy; Istituto di Ricerca Pediatrica Città della Speranza, Padua, Italy
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d’Amore ES, Visco C, Menin A, Famengo B, Bonvini P, Lazzari E. STAT3 Pathway Is Activated in ALK-positive Large B-cell Lymphoma Carrying SQSTM1-ALK Rearrangement and Provides a Possible Therapeutic Target. Am J Surg Pathol 2013; 37:780-6. [DOI: 10.1097/pas.0b013e318287791f] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Peron M, Bonvini P, Rosolen A. Effect of inhibition of the ubiquitin-proteasome system and Hsp90 on growth and survival of rhabdomyosarcoma cells in vitro. BMC Cancer 2012; 12:233. [PMID: 22691173 PMCID: PMC3480867 DOI: 10.1186/1471-2407-12-233] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Accepted: 05/21/2012] [Indexed: 01/04/2023] Open
Abstract
Background The ubiquitin-proteasome system (UPS) and the heat shock response (HSR) are two critical regulators of cell homeostasis, as their inhibition affects growth and survival of normal cells, as well as stress response and invasiveness of cancer cells. We evaluated the effects of the proteasome inhibitor Bortezomib and of 17-DMAG, a competitive inhibitor of Hsp90, in rhabdomyosarcoma (RMS) cells, and analyzed the efficacy of single-agent exposures with combination treatments. Methods To assess cytotoxicity induced by Bortezomib and 17-DMAG in RMS cells, viability was measured by MTT assay after 24, 48 and 72 hours. Western blotting and immunofluorescence analyses were carried out to elucidate the mechanisms of action. Apoptosis was measured by FACS with Annexin-V-FITC and Propidium Iodide. Results Bortezomib and 17-DMAG, when combined at single low-toxic concentrations, enhanced growth inhibition of RMS cells, with signs of autophagy that included intensive cytoplasmic vacuolization and conversion of cytosolic LC3-I protein to its autophagosome-associated form. Treatment with lysosomal inhibitor chloroquine facilitates apoptosis, whereas stimulation of autophagy by rapamycin prevents LC3-I conversion and cell death, suggesting that autophagy is a resistance mechanism in RMS cells exposed to proteotoxic drugs. However, combination treatment also causes caspase-dependent apoptosis, PARP cleavage and Annexin V staining, as simultaneous inhibition of both UPS and HSR systems limits cytoprotective autophagy, exacerbating stress resulting from accumulation of misfolded proteins. Conclusion The combination of proteasome inhibitor Bortezomib with Hsp90 inhibitor 17-DMAG, appears to have important therapeutic advantages in the treatment of RMS cells compared with single-agent exposure, because compensatory survival mechanisms that occur as side effects of treatment may be prevented.
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Affiliation(s)
- Marica Peron
- Clinica di Oncoematologia Pediatrica, Azienda Ospedaliera-Università di Padova, Via Giustiniani 3, Padova 35128, Italy
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Li KKW, Pang JCS, Ng HK, Massimino M, Gandola L, Biassoni V, Spreafico F, Schiavello E, Poggi G, Casanova M, Pecori E, De Pava MV, Ferrari A, Meazza C, Terenziani M, Polastri D, Luksch R, Podda M, Modena P, Antonelli M, Giangaspero F, Ahmed S, Zaghloul MS, Mousa AG, Eldebawy E, Elbeltagy M, Awaad M, Massimino M, Gandola L, Biassoni V, Antonelli M, Schiavello E, Buttarelli F, Spreafico F, Collini P, Pollo B, Patriarca C, Giangaspero F, MacDonald T, Liu J, Munson J, Park J, Wang K, Fei B, Bellamkonda R, Arbiser J, Gomi A, Yamaguchi T, Mashiko T, Oguro K, Somasundaram A, Neuberg R, Grant G, Fuchs H, Driscoll T, Becher O, McLendon R, Cummings T, Gururangan S, Bourdeaut F, Grison C, Doz F, Pierron G, Delattre O, Couturier J, Cho YJ, Pugh T, Weeraratne SD, Archer T, Krummel DP, Auclair D, Cibulkis K, Lawrence M, Greulich H, McKenna A, Ramos A, Shefler E, Sivachenko A, Amani V, Pierre-Francois J, Teider N, Northcott P, Taylor M, Meyerson M, Pomeroy S, Potts C, Cline H, Rotenberry R, Guldal C, Bhatia B, Nahle Z, Kenney A, Fan YN, Pizer B, See V, Makino K, Nakamura H, Kuratsu JI, Grahlert J, Ma M, Fiaschetti G, Shalaby T, Grotzer M, Baumgartner M, Clifford S, Gustafsson G, Ellison D, Figarella-Branger D, Doz F, Rutkowski S, Lannering B, Pietsch T, Fiaschetti G, Shalaby T, Baumgartner M, Grotzer M, Fleischhack G, Siegler N, Zimmermann M, Rutkowski S, Warmuth-Metz M, Kortmann RD, Pietsch T, Faldum A, Bode U, Yoon JH, Kang HJ, Park KD, Park SH, Phi JH, Kim SK, Wang KC, Kim IH, Shin HY, Ahn HS, Faria C, Golbourn B, Smith C, Rutka J, Greene BD, Whitton A, Singh S, Scheinemann K, Hill R, Lindsey J, Howell C, Ryan S, Shiels K, Shrimpton E, Bailey S, Clifford S, Schwalbe E, Lindsey J, Williamson D, Hamilton D, Northcott P, O'Toole K, Nicholson SL, Lusher M, Gilbertson R, Hauser P, Taylor M, Taylor R, Ellison D, Bailey S, Clifford S, Kool M, Jones DTW, Jager N, Hovestadt V, Schuller U, Jabado N, Perry A, Cowdrey C, Croul S, Collins VP, Cho YJ, Pomeroy S, Eils R, Korshunov A, Lichter P, Pfister S, Northcott P, Shih D, Taylor M, Darabi A, Sanden E, Visse E, Siesjo P, Harris P, Venkataraman S, Alimova I, Birks D, Cristiano B, Donson A, Foreman N, Vibhakar R, Bertin D, Vallero S, Basso ME, Romano E, Peretta P, Morra I, Mussano A, Fagioli F, Kunkele A, De Preter K, Heukamp L, Thor T, Pajtler K, Hartmann W, Mittelbronn M, Grotzer M, Deubzer H, Speleman F, Schramm A, Eggert A, Schulte J, Bandopadhayay P, Kieran M, Manley P, Robison N, Chi S, Thor T, Mestdagh P, Vandesomple J, Fuchs H, Durner VG, de Angelis MH, Heukamp L, Kunkele A, Pajtler K, Eggert A, Schramm A, Schulte JH, Ohe N, Yano H, Nakayama N, Iwama T, Lastowska M, Perek-Polnik M, Grajkowska W, Malczyk K, Cukrowska B, Dembowska-Baginska B, Perek D, Othman RT, Storer L, Grundy R, Kerr I, Coyle B, Hulleman E, Lagerweij T, Biesmans D, Crommentuijn MHW, Cloos J, Tannous BA, Vandertop WP, Noske DP, Kaspers GJL, Wurdinger T, Bergthold G, El Kababri M, Varlet P, Dhermain F, Sainte-Rose C, Raquin MA, Valteau-Couanet D, Grill J, Dufour C, Burchill C, Hii H, Dallas P, Cole C, Endersby R, Gottardo N, Gevorgian A, Morozova E, Kazantsev I, Youhta T, Safonova S, Kozlov A, Punanov Y, Afanasyev B, Zheludkova O, Packer R, Gajjar A, Michalski J, Jakacki R, Gottardo N, Tarbell N, Vezina G, Olson J, Friedrich C, von Bueren AO, von Hoff K, Gerber NU, Benesch M, Faldum A, Pietsch T, Warmuth-Metz M, Kuehl J, Kortmann RD, Rutkowski S, Malbari F, Atlas M, Friedman G, Kelly V, Bray A, Cassady K, Markert J, Gillespie Y, Taylor R, Howman A, Brogden E, Robinson K, Jones D, Gibson M, Bujkiewicz S, Mitra D, Saran F, Michalski A, Pizer B, Jones DTW, Jager N, Kool M, Zichner T, Hutter B, Sultan M, Cho YJ, Pugh TJ, Warnatz HJ, Reifenberger G, Northcott PA, Taylor MD, Meyerson M, Pomeroy SL, Yaspo ML, Korbel JO, Korshunov A, Eils R, Pfister SM, Lichter P, Pajtler KW, Weingarten C, Thor T, Kuenkele A, Fleischhack G, Heukamp LC, Buettner R, Kirfel J, Eggert A, Schramm A, Schulte JH, Friedrich C, von Bueren AO, von Hoff K, Gerber NU, Benesch M, Kwiecien R, Pietsch T, Warmuth-Metz M, Faldum A, Kuehl J, Kortmann RD, Rutkowski S, Lupo P, Scheurer M, Martin A, Nirschl C, Polanczyk M, Cohen KJ, Pardoll DM, Drake CG, Lim M, Manoranjan B, Hallett R, Wang X, Venugopal C, McFarlane N, Sheinemann K, Hassell J, Singh S, Venugopal C, Manoranjan B, McFarlane N, Whitton A, Delaney K, Scheinemann K, Singh S, Manoranjan B, Hallett R, Venugopal C, McFarlane N, Hassell J, Scheinemann K, Dunn S, Singh S, Garcia I, Crowther AJ, Gama V, Miller CR, Deshmukh M, Gershon TR, Garcia I, Crowther AJ, Gershon TR, Gerber NU, von Hoff K, Friedrich C, von Bueren AO, Treulieb W, Benesch M, Faldum A, Pietsch T, Warmuth-Metz M, Rutkowski S, Kortmann RD, Zin A, De Bortoli M, Bonvini P, Viscardi E, Perilongo G, Rosolen A, Connolly E, Zhang C, Anderson R, Feldstein N, Stark E, Garvin J, Shing MMK, Lee V, Cheng FWT, Leung AWK, Zhu XL, Wong HT, Kam M, Li CK, Ward S, Sengupta R, Kroll K, Rubin J, Dallas P, Milech N, Longville B, Hopkins R, Vergiliana JVD, Endersby R, Gottardo N, von Bueren AO, Gerss J, Hagel C, Cai H, Remke M, Hasselblatt M, Feuerstein BG, Pernet S, Delattre O, Korshunov A, Rutkowski S, Pfister SM, Baudis M, Lee C, Fotovati A, Triscott J, Dunn S, Valdora F, Freier F, Seyler C, Brady N, Bender S, Northcott P, Kool M, Jones D, Coco S, Tonini GP, Scheurlen W, Boutros M, Taylor M, Katus H, Kulozik A, Zitron E, Korshunov A, Lichter P, Pfister S, Remke M, Shih DJH, Northcott PA, Van Meter T, Pollack IF, Van Meir E, Eberhart CG, Fan X, Dellatre O, Collins VP, Jones DTW, Clifford SC, Pfister SM, Taylor MD, Pompe R, von Bueren AO, von Hoff K, Friedrich C, Treulieb W, Lindow C, Deinlein F, Kuehl J, Rutkowski S, Gupta T, Krishnatry R, Shirsat N, Epari S, Kunder R, Kurkure P, Vora T, Moiyadi A, Jalali R, Cohen K, Perek D, Perek-Polnik M, Dembowska-Baginska B, Drogosiewicz M, Grajkowska W, Lastowska M, Chojnacka M, Filipek I, Tarasinska M, Roszkowski M, Hauser P, Jakab Z, Bognar L, Markia B, Gyorsok Z, Ottoffy G, Nagy K, Cservenyak J, Masat P, Turanyi E, Vizkeleti J, Krivan G, Kallay K, Schuler D, Garami M, Lacroix J, Schlund F, Adolph K, Leuchs B, Bender S, Hielscher T, Pfister S, Witt O, Schlehofer JR, Rommelaere J, Witt H, Leskov K, Ma N, Eberhart C, Stearns D, Dagri JN, Torkildson J, Evans A, Ashby LS, Zakotnik B, Brown RJ, Dhall G, Portnow J, Finlay JL, McCabe M, Pizer B, Marino AM, Baryawno N, Ekstrom TP, Ostman A, Johnsen JI, Robinson G, Parker M, Kranenburg T, Lu C, Pheonix T, Huether R, Easton J, Onar A, Lau C, Bouffet E, Gururangan S, Hassall T, Cohn R, Gajjar A, Ellison D, Mardis E, Wilson R, Downing J, Zhang J, Gilbertson R, Robinson G, Dalton J, O'Neill T, Yong W, Chingtagumpala M, Bouffet E, Bowers D, Kellie S, Gururangan S, Fisher P, Bendel A, Fisher M, Hassall T, Wetmore C, Broniscer A, Clifford S, Gilbertson R, Gajjar A, Ellison D, Zhukova N, Martin D, Lipman T, Castelo-Branco P, Zhang C, Fraser M, Baskin B, Ray P, Bouffet E, Alman B, Ramaswamy V, Dirks P, Clifford S, Rutkowski S, Pfister S, Bristow R, Taylor M, Malkin D, Hawkins C, Tabori U, Dhall G, Ji L, Haley K, Gardner S, Sposto R, Finlay J, Leary S, Strand A, Ditzler S, Heinicke G, Conrad L, Richards A, Pedro K, Knoblaugh S, Cole B, Olson J, Yankelevich M, Budarin M, Konski A, Mentkevich G, Stefanits H, Ebetsberger-Dachs G, Weis S, Haberler C, Milosevic J, Baryawno N, Sveinbjornsson B, Martinsson T, Grotzer M, Johnsen JI, Kogner P, Garzia L, Morrisy S, Jelveh S, Lindsay P, Hill R, Taylor M, Marks A, Zhang H, Rood B, Williamson D, Clifford S, Aurtenetxe O, Gaffar A, Lopez JI, Urberuaga A, Navajas A, O'Halloran K, Hukin J, Singhal A, Dunham C, Goddard K, Rassekh SR, Davidson TB, Fangusaro JR, Ji L, Sposto R, Gardner SL, Allen JC, Dunkel IJ, Dhall G, Finlay JL, Trivedi M, Tyagi A, Goodden J, Chumas P, O'kane R, Crimmins D, Elliott M, Picton S, Silva DS, Viana-Pereira M, Stavale JN, Malheiro S, Almeida GC, Clara C, Jones C, Reis RM, Spence T, Sin-Chan P, Picard D, Ho KC, Lu M, Huang A, Bochare S, Khatua S, Gopalakrishnan V, Chan TSY, Picard D, Pfister S, Hawkins C, Huang A, Chan TSY, Picard D, Ho KC, Huang A, Picard D, Millar S, Hawkins C, Rogers H, Kim SK, Ra YS, Fangusaro J, Toledano H, Nakamura H, Van Meter T, Pomeroy S, Ng HK, Jones C, Gajjar A, Clifford S, Pfister S, Eberhart C, Bouffet E, Grundy R, Huang A, Sengupta S, Weeraratne SD, Phallen J, Sun H, Rallapalli S, Amani V, Pierre-Francois J, Teider N, Cook J, Jensen F, Lim M, Pomeroy S, Cho YJ. MEDULLOBLASTOMA. Neuro Oncol 2012; 14:i82-i105. [PMCID: PMC3483339 DOI: 10.1093/neuonc/nos093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023] Open
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Bonvini P, Mussolin L, Cozza G, Moro S, Rosolen A. Abstract 3034: Hsp90-dependent stabilization of active NPM-ALK kinase: Structural insights by mutagenesis of the ALK catalytic domain. Cancer Res 2012. [DOI: 10.1158/1538-7445.am2012-3034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background. Among the posttranslational modifications occurring in eukaryotic cells, phosphorylation is the most critical for proteins, as phosphate-mediated conformational switching of catalytic and non-catalytic motifs impacts expression and activity through changes in structure stability. Activation by phosphorylation is the rule for protein kinases, including oncogenic protein tyrosine kinase NPM-ALK (nucleophosmin-anaplastic lymphoma kinase) in Anaplastic Large Cell Lymphomas, though it renders the kinase prone to degradation. For several of them, however, the maintenance of functional stability is provided by the molecular chaperone Hsp90, through the recognition of specific motifs within the catalytic domain. Objectives. Herein, we determined whether NPM-ALK kinase activity facilitates Hsp90 binding, and whether structural motifs within NPM-ALK catalytic domain favor or impair Hsp90 interaction. Design/Methods. To test this hypothesis we prepared a series of N- and C-terminal deletion mutants of wild-type NPM-ALK, as well as inactive point mutants by site-directed mutagenesis of the NPM-ALK ATP-binding site and activation loop. Results. Using NPM-ALK constructs in COS7 and 293T cells, we showed that Hsp90 strongly interacts with wild-type NPM-ALK, but fails to co-adsorb with inactive point mutants and with deletion mutants lacking the entire kinase domain. By comparison, binding to Hsp90 family members Hsc70 and Hsp70 is independent of NPM-ALK activity, suggesting a greater dependence of active NPM-ALK on Hsp90 function. Accordingly, phosphorylated NPM-ALK associated with Hsp90 and co-chaperone cdc37, and pharmacological inhibition of NPM-ALK prevented the interaction of NPM-ALK with both proteins. Of note, mutants unmasking the αC-helix motif in the N-terminal lobe of the catalytic domain maintained the ability to bind Hsp90, whereas mutants lacking αC-helix did not. Conclusions. Our findings, therefore, suggest a model in which, in addition to a role in folding nascent NPM-ALK, Hsp90 provides an “ongoing folding support” to activated NPM-ALK kinase, by protecting self-phosphorylated NPM-ALK from ubiquitination through recognition of specific unstable motifs within its catalytic domain.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr 3034. doi:1538-7445.AM2012-3034
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Affiliation(s)
- Paolo Bonvini
- 1Hematology and Oncology Clinic of Pediatrics, Padova, Italy
| | - Lara Mussolin
- 1Hematology and Oncology Clinic of Pediatrics, Padova, Italy
| | - Giorgio Cozza
- 2Department of Pharmaceutical Sciences, University of Padova, Padova, Italy
| | - Stefano Moro
- 2Department of Pharmaceutical Sciences, University of Padova, Padova, Italy
| | - Angelo Rosolen
- 1Hematology and Oncology Clinic of Pediatrics, Padova, Italy
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Cozza G, Gianoncelli A, Bonvini P, Zorzi E, Pasquale R, Rosolen A, Pinna LA, Meggio F, Zagotto G, Moro S. Cover Picture: Urolithin as a Converging Scaffold Linking Ellagic acid and Coumarin Analogues: Design of Potent Protein Kinase CK2 Inhibitors (ChemMedChem 12/2011). ChemMedChem 2011. [DOI: 10.1002/cmdc.201190052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Zorzi E, Bonvini P. Inducible hsp70 in the regulation of cancer cell survival: analysis of chaperone induction, expression and activity. Cancers (Basel) 2011; 3:3921-56. [PMID: 24213118 PMCID: PMC3763403 DOI: 10.3390/cancers3043921] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 09/26/2011] [Accepted: 10/10/2011] [Indexed: 12/31/2022] Open
Abstract
Understanding the mechanisms that control stress is central to realize how cells respond to environmental and physiological insults. All the more important is to reveal how tumour cells withstand their harsher growth conditions and cope with drug-induced apoptosis, since resistance to chemotherapy is the foremost complication when curing cancer. Intensive research on tumour biology over the past number of years has provided significant insights into the molecular events that occur during oncogenesis, and resistance to anti-cancer drugs has been shown to often rely on stress response and expression of inducible heat shock proteins (HSPs). However, with respect to the mechanisms guarding cancer cells against proteotoxic stresses and the modulatory effects that allow their survival, much remains to be defined. Heat shock proteins are molecules responsible for folding newly synthesized polypeptides under physiological conditions and misfolded proteins under stress, but their role in maintaining the transformed phenotype often goes beyond their conventional chaperone activity. Expression of inducible HSPs is known to correlate with limited sensitivity to apoptosis induced by diverse cytotoxic agents and dismal prognosis of several tumour types, however whether cancer cells survive because of the constitutive expression of heat shock proteins or the ability to induce them when adapting to the hostile microenvironment remains to be elucidated. Clear is that tumours appear nowadays more "addicted" to heat shock proteins than previously envisaged, and targeting HSPs represents a powerful approach and a future challenge for sensitizing tumours to therapy. This review will focus on the anti-apoptotic role of heat shock 70kDa protein (Hsp70), and how regulatory factors that control inducible Hsp70 synthesis, expression and activity may be relevant for response to stress and survival of cancer cells.
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Affiliation(s)
- Elisa Zorzi
- OncoHematology Clinic of Pediatrics, University-Hospital of Padova, 35100 Padova, Italy; E-Mail:
| | - Paolo Bonvini
- OncoHematology Clinic of Pediatrics, University-Hospital of Padova, 35100 Padova, Italy; E-Mail:
- Fondazione Città della Speranza, 36030 Monte di Malo, Vicenza, Italy
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Cozza G, Gianoncelli A, Bonvini P, Zorzi E, Pasquale R, Rosolen A, Pinna LA, Meggio F, Zagotto G, Moro S. Urolithin as a converging scaffold linking ellagic acid and coumarin analogues: design of potent protein kinase CK2 inhibitors. ChemMedChem 2011; 6:2273-86. [PMID: 21972104 DOI: 10.1002/cmdc.201100338] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Revised: 08/12/2011] [Indexed: 11/12/2022]
Abstract
Casein kinase 2 (CK2) is a ubiquitous, essential, and highly pleiotropic protein kinase; its abnormally high constitutive activity is suspected to underlie its pathogenic potential in neoplasia and other relevant diseases. Previously, using different in silico screening approaches, two potent and selective CK2 inhibitors were identified by our group: ellagic acid, a naturally occurring tannic acid derivative (K(i)=20 nM) and 3,8-dibromo-7-hydroxy-4-methylchromen-2-one (DBC, K(i)=60 nM). Comparing the crystallographic binding modes of both ellagic acid and DBC, an X-ray structure-driven merging approach was taken to design novel CK2 inhibitors with improved target affinity. A urolithin moiety is proposed as a possible bridging scaffold between the two known CK2 inhibitors, ellagic acid and DBC. Optimization of urolithin A as the bridging moiety led to the identification of 4-bromo-3,8-dihydroxy-benzo[c]chromen-6-one as a novel, potent and selective CK2 inhibitor, which shows a K(i) value of 7 nM against the protein kinase, representing a significant improvement in affinity for the target compared with the two parent fragments.
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Affiliation(s)
- Giorgio Cozza
- Department of Biological Chemistry, University of Padova, Viale Giuseppe Colombo 3, 35131 Padova, Italy
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Bonvini P, Zorzi E, Mussolin L, Monaco G, Pigazzi M, Basso G, Rosolen A. The effect of the cyclin-dependent kinase inhibitor flavopiridol on anaplastic large cell lymphoma cells and relationship with NPM-ALK kinase expression and activity. Haematologica 2009; 94:944-55. [PMID: 19535344 DOI: 10.3324/haematol.2008.004861] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND The loss of cell cycle regulation due to abnormal function of cyclin-dependent kinases (cdk) occurs in tumors and leads to genetic instability of chemotherapy-resistant cells. In this study, we investigated the effect of the cdk inhibitor flavopiridol in anaplastic large cell lymphomas, in which unrestrained proliferation depends on NPM-ALK tyrosine kinase activity. DESIGN AND METHODS Effects of flavopiridol were examined in ALK-positive and -negative anaplastic large cell lymphoma cells by means of immunoblotting and immunofluorescence analyses to assess cdk expression and activity, quantitative real time reverse transcriptase polymerase chain reaction to measure drug-induced changes in transcription, and FACS analyses to monitor changes in proliferation and survival. RESULTS Treatment with flavopiridol resulted in growth inhibition of anaplastic large cell lymphoma cells, along with accumulation of subG(1) cells and disappearance of S phase without cell cycle arrest. Consistent with flavopiridol activity, phosphorylation at cdk2, cdk4, cdk9 sites on RB and RNA polymerase II was inhibited. This correlated with induction of cell death through rapid mitochondrial damage, inhibition of DNA synthesis, and down-regulation of anti-apoptotic proteins and transcripts. Notably, flavopiridol was less active in ALK-positive cells, as apoptosis was observed at higher concentrations and later time points, and resistance to treatment was observed in cells maintaining NPM-ALK signaling. NPM-ALK inhibition affected proliferation but not survival of anaplastic large cell lym-phoma cells, whereas it resulted in a dramatic increase in apoptosis when combined with flavopiridol. CONCLUSIONS This work provides the first demonstration that targeting cdk is effective against anaplastic large cell lymphoma cells, and proves the critical role of NPM-ALK in the regulation of responsiveness of tumor cells with cdk dysregulation.
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Affiliation(s)
- Paolo Bonvini
- Clinica di Oncoematologia Pediatrica, Azienda Ospedaliera-Università di Padova, 35128 Padova, Italy.
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Bonvini P, Zorzi E, Mussolin L, Monaco G, Basso G, Rosolen A. 295 POSTER Growth inhibition and induction of apoptosis in anaplastic large cell lymphoma cells treated with the CDK inhibitor flavopiridol. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)72229-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Zorzi E, Bonvini P, Mussolin L, Basso G, Rosolen A. 233 POSTER Bortezomib and Flavopiridol combination induces down regulation of Mcl-1, mitochondrial permeabilization and cell death in ALCL cells. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)72165-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Rosolen A, Bonvini P, Pillon M, Ait-Tahar K, Mussolin L. 182 INVITED Molecular biology of anaplastic large-cell lymphoma. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)70296-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Bonvini P, Zorzi E, Basso G, Rosolen A. Bortezomib-mediated 26S proteasome inhibition causes cell-cycle arrest and induces apoptosis in CD-30+ anaplastic large cell lymphoma. Leukemia 2007; 21:838-42. [PMID: 17268529 DOI: 10.1038/sj.leu.2404528] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Cozza G, Bonvini P, Zorzi E, Poletto G, Pagano MA, Sarno S, Donella-Deana A, Zagotto G, Rosolen A, Pinna LA, Meggio F, Moro S. Identification of ellagic acid as potent inhibitor of protein kinase CK2: a successful example of a virtual screening application. J Med Chem 2006; 49:2363-6. [PMID: 16610779 DOI: 10.1021/jm060112m] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Casein kinase 2 (CK2) is a ubiquitous, essential, and highly pleiotropic protein kinase whose abnormally high constitutive activity is suspected to underlie its pathogenic potential in neoplasia and other diseases. Using a virtual screening approach, we have identified the ellagic acid, a naturally occurring tannic acid derivative, as a novel potent CK2 inhibitor. At present, ellagic acid represents the most potent known CK2 inhibitor (K(i) = 20 nM).
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Affiliation(s)
- Giorgio Cozza
- Molecular Modeling Section, Dipartimento di Scienze Farmaceutiche, Università di Padova, via Marzolo 5, Padua, Italy
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Gastaldi T, Bonvini P, Sartori F, Marrone A, Iolascon A, Rosolen A. Plakoglobin is differentially expressed in alveolar and embryonal rhabdomyosarcoma and is regulated by DNA methylation and histone acetylation. Carcinogenesis 2006; 27:1758-67. [PMID: 16537559 DOI: 10.1093/carcin/bgl008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Plakoglobin (gamma-catenin) and beta-catenin are pivotal components of cell-cell adherent junctions that link cadherin receptors to the actin cytoskeleton. Whereas beta-catenin overexpression induces cell proliferation and tumor formation, plakoglobin induces tumor suppressor activity. We investigated the expression of plakoglobin in alveolar (ARMS) and embryonal (ERMS) rhabdomyosarcoma (RMS) cell lines and tumors, and found that plakoglobin is present both in the cytoplasm and in the nucleus of ERMS cells, whereas it is absent or detectable at extremely low levels in ARMS. As gene silencing can be mediated by methylation and/or deacetylation of promoter regions, we assessed the effects of the DNA demethylating agent 5-Aza-2'-deoxycytidine (5AzadC) and of the histone deacetylase inhibitor Trichostatin A (TSA), and obtained restoration of plakoglobin expression in ARMS cells cultivated in the presence of 5AzadC and TSA. By methylation-specific PCR, ARMS cells were shown to contain methylated CpG dinucleotides in CpG islands located around the transcriptional start site of one or both alleles, whereas ERMS cells did not. Furthermore, we demonstrated that promoter regions (P1-P3) of plakoglobin gene were associated with hypoacetylated H4 histone in ARMS cells RH4, suggesting that aberrant DNA methylation of the 5' CpG island and histone deacetylation play key roles in silencing the plakoglobin gene. These results demonstrate that plakoglobin is differentially expressed in ARMS and ERMS and that its expression depends on the methylation and acetylation status of the gene.
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Affiliation(s)
- Tamara Gastaldi
- Clinica di Oncoematologia Pediatrica, Azienda Ospedaliera-Università di Padova, Via Giustiniani 1, 35128 Padova, Italy
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Bonvini P, Dalla Rosa H, Vignes N, Rosolen A. Ubiquitination and proteasomal degradation of nucleophosmin-anaplastic lymphoma kinase induced by 17-allylamino-demethoxygeldanamycin: role of the co-chaperone carboxyl heat shock protein 70-interacting protein. Cancer Res 2004; 64:3256-64. [PMID: 15126367 DOI: 10.1158/0008-5472.can-03-3531] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Nucleophosmin-anaplastic lymphoma kinase (NPM-ALK) is a constitutively active fusion tyrosine kinase involved in lymphomagenesis of human anaplastic large cell lymphomas (ALCL), the maturation and activity of which depend on the association with the heat shock protein (hsp) 90 protein chaperone. Targeting hsp90 by the ansamycins geldanamycin and 17-allyl-amino-demethoxygeldanamycin (17-AAG) promotes degradation of several proteins through the ubiquitin-proteasome pathway, including oncogenic Raf, v-Src, erbB2, and BCR-ABL. We have previously shown that 17-AAG prevents hsp90/NPM-ALK complex formation and fosters NPM-ALK turnover, perhaps through its association with the hsp70 chaperone. Here, we show that inhibition of the proteasome activity by the potent and specific compound pyrazylcarbonyl-Phe-Leu-boronate (PS-341) blocks 17-AAG-induced down-regulation of NPM-ALK, which becomes detergent-insoluble and relocates into ubiquitin-rich perinuclear vesicles that represent aggregated polyubiquitinated forms of the protein. Kinase activity was not mandatory for proteasomal degradation of NPM-ALK, because kinase-defective NPM-ALK was even more rapidly degraded upon 17-AAG treatment. Prolonged exposure to the proteasome inhibitor was shown to trigger caspase-3-mediated apoptosis in proliferating ALCL cells at nanomolar concentrations. However, we verified that the accumulation of detergent-insoluble NPM-ALK in ALCL cells was not a spurious consequence of PS341-committed apoptosis, because caspase inhibitors prevented poly(ADP-ribose) polymerase cleavage whereas they did not affect partitioning of aggregated NPM-ALK. In line with these observations, the carboxyl hsp70-interacting ubiquitin ligase (CHIP), was shown to increase basal ubiquitination and turnover of NPM-ALK kinase, supporting a mechanism whereby NPM-ALK proceeds rapidly toward hsp70-assisted ubiquitin-dependent proteasomal degradation, when chaperoning activity of hsp90 is prohibited by 17-AAG.
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Affiliation(s)
- Paolo Bonvini
- Clinica di Oncoematologia Pediatrica, Azienda Ospedaliera-Università di Padova, Padova, Italy.
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Chung EJ, Hwang SG, Nguyen P, Lee S, Kim JS, Kim JW, Henkart PA, Bottaro DP, Soon L, Bonvini P, Lee SJ, Karp JE, Oh HJ, Rubin JS, Trepel JB. Regulation of leukemic cell adhesion, proliferation, and survival by beta-catenin. Blood 2002; 100:982-90. [PMID: 12130512 DOI: 10.1182/blood.v100.3.982] [Citation(s) in RCA: 109] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
In epithelial cells beta-catenin plays a critical role as a component of the cell-cell adhesion apparatus and as a coactivator of the TCF/LEF (T-cell transcription factor/lymphoid enhancer binding factor) family of transcription factors. Deregulation of beta-catenin has been implicated in the malignant transformation of cells of epithelial origin. However, a function for beta-catenin in hematologic malignancies has not been reported. beta-Catenin is not detectable in normal peripheral blood T cells but is expressed in T-acute lymphoblastic leukemia cells and other tumor lines of hematopoietic origin and in primary lymphoid and myeloid leukemia cells. beta-Catenin function was examined in Jurkat T-acute lymphoblastic leukemia cells. Overexpression of dominant-negative beta-catenin or dominant-negative TCF reduced beta-catenin nuclear signaling and inhibited Jurkat proliferation and clonogenicity. Similarly, these constructs inhibited proliferation of K562 and HUT-102 cells. Reduction of beta-catenin expression with beta-catenin antisense down-regulated adhesion of Jurkat cells in response to phytohemagglutinin. Incubation of Jurkat cells with anti-Fas induced caspase-dependent limited proteolysis of beta-catenin N- and C-terminal regions and rapid redistribution of beta-catenin to the detergent-insoluble cytoskeleton, concomitant with a marked decline in nuclear beta-catenin signaling. Fas-mediated apoptosis was potentiated by inhibition of beta-catenin nuclear signaling. The data suggest that beta-catenin can play a significant role in promoting leukemic cell proliferation, adhesion, and survival.
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Affiliation(s)
- Eun Joo Chung
- Medical Oncology Clinical Research Unit and Developmental Therapeutics Program, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
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Bonvini P, Gastaldi T, Falini B, Rosolen A. Nucleophosmin-anaplastic lymphoma kinase (NPM-ALK), a novel Hsp90-client tyrosine kinase: down-regulation of NPM-ALK expression and tyrosine phosphorylation in ALK(+) CD30(+) lymphoma cells by the Hsp90 antagonist 17-allylamino,17-demethoxygeldanamycin. Cancer Res 2002; 62:1559-66. [PMID: 11888936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Anaplastic large cell lymphomas (ALCL) are characterized by the expression of a chimeric protein, NPM-ALK, which originates from fusion of the nucleophosmin (NPM) and the membrane receptor anaplastic lymphoma kinase (ALK) genes. The NPM-ALK kinase, on dimerization, shows phosphotransferase activity and, through its interaction with various ALK-adapter proteins, induces cell transformation and increases cell proliferation in vitro. The chaperones heat shock proteins 90 (Hsp90) and 70 (Hsp70) play a critical role in the folding and maturation of several oncogenic protein kinases, and perturbation of Hsp90 structure affects the stability and degradation of Hsp90- and Hsp70-bound substrates. This process is triggered by benzoquinone ansamycin antibiotics, Hsp90-binding small molecules. We have studied the effect of 17-allylamino,17-demethoxygeldanamycin (17-AAG), a benzoquinone ansamycin, on NPM-ALK steady-state level in ALCL cells. Treatment with 17-AAG decreased NPM-ALK expression and phosphorylation, thus impairing its association with phospholipase C-gamma, Src homology 2 domain-containing protein (Shc), growth factor receptor-bound protein 2 (Grb2), and insulin receptor substrate-1 (IRS-1). We also observed that NPM-ALK associates with Hsp90, and incubation with 17-AAG disrupts this complex without affecting Hsp90 expression. As shown previously for other Hsp90 client proteins, destabilization of the Hsp90/NPM-ALK complex induced by 17-AAG resulted in increased binding of the chimeric protein to Hsp70, which is known to affect protein degradation. Hsp/NPM-ALK complex formation appears to be independent of NPM sequences, because we were unable to coimmunoprecipitate NPM with either Hsp90 or Hsp70. Similar to NPM-ALK, the exogenously expressed variant fusion protein TPR-ALK showed decreased expression and phosphorylation after 17-AAG treatment, suggesting that the effect of 17-AAG on ALK chimeric proteins depends on the ALK portion and not on the partner protein moiety. Our data demonstrate that NPM-ALK cell content is determined by its interaction with Hsp90 and Hsp70, and suggest that the alteration of such associations can interfere with NPM-ALK function in ALCL cells.
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Affiliation(s)
- Paolo Bonvini
- Clinica di Oncoematologia Pediatrica, Azienda Ospedaliera-Università di Padova, 35128 Padua, Italy.
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Bonvini P, An WG, Rosolen A, Nguyen P, Trepel J, Garcia de Herreros A, Dunach M, Neckers LM. Geldanamycin abrogates ErbB2 association with proteasome-resistant beta-catenin in melanoma cells, increases beta-catenin-E-cadherin association, and decreases beta-catenin-sensitive transcription. Cancer Res 2001; 61:1671-7. [PMID: 11245482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Beta-catenin undergoes both serine and tyrosine phosphorylation. Serine phosphorylation in the amino terminus targets beta-catenin for proteasome degradation, whereas tyrosine phosphorylation in the COOH terminus influences interaction with E-cadherin. We examined the tyrosine phosphorylation status of beta-catenin in melanoma cells expressing proteasome-resistant beta-catenin, as well as the effects that perturbation of beta-catenin tyrosine phosphorylation had on its association with E-cadherin and on its transcriptional activity. Beta-catenin is tyrosine phosphorylated in three melanoma cell lines and associates with both the ErbB2 receptor tyrosine kinase and the LAR receptor tyrosine phosphatase. Geldanamycin, a drug which destabilizes ErbB2, caused rapid cellular depletion of the kinase and loss of its association with beta-catenin without perturbing either LAR or beta-catenin levels or LAR/beta-catenin association. Geldanamycin also stimulated tyrosine dephosphorylation of beta-catenin and increased beta-catenin/E-cadherin association, resulting in substantially decreased cell motility. Geldanamycin also decreased the nuclear beta-catenin level and inhibited beta-catenin-driven transcription, as assessed using two different beta-catenin-sensitive reporters and the endogenous cyclin D1 gene. These findings were confirmed by transient transfection of two beta-catenin point mutants, Tyr-654Phe and Tyr-654Glu, which, respectively, mimic the dephosphorylated and phosphorylated states of Tyr-654, a tyrosine residue contained within the beta-catenin-ErbB2-binding domain. These data demonstrate that the functional activity of proteasome-resistant beta-catenin is regulated further by geldanamycin-sensitive tyrosine phosphorylation in melanoma cells.
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Affiliation(s)
- P Bonvini
- Department of Cell and Cancer Biology, Medicine Branch, National Cancer Institute, Rockville, Maryland 20850, USA
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Mimnaugh EG, Yunmbam MK, Li Q, Bonvini P, Hwang SG, Trepel J, Reed E, Neckers L. Prevention of cisplatin-DNA adduct repair and potentiation of cisplatin-induced apoptosis in ovarian carcinoma cells by proteasome inhibitors. Biochem Pharmacol 2000; 60:1343-54. [PMID: 11008128 DOI: 10.1016/s0006-2952(00)00455-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Histones H2A and H2B are known to be reversibly post-translationally modified by ubiquitination. We previously observed in cultured tumor cells that proteasome inhibition stabilizes polyubiquitinated proteins, depletes unconjugated ubiquitin, and thereby promotes the deubiquitination of nucleosomal histones in chromatin. Provocative indirect evidence suggests that histone ubiquitination/deubiquitination cycles alter chromatin structure, which may limit accessibility of DNA repair proteins to damaged sites. In the present study, we focused on the relationship between the ubiquitination status of histone H2A, the structure of chromatin, and the efficiency of nucleotide excision repair (NER) of cisplatin-DNA adducts in human ovarian carcinoma cells exposed to the antitumor drug cisplatin. Pretreating cells with the proteasome inhibitor lactacystin (LC) or N-acetyl-leucyl-leucyl-norleucinal (ALLnL) induced deubiquitination of ubiquitinated histone H2A (uH2A) and concomitantly promoted chromatin condensation, increased the extent of cisplatin-DNA adducts, and diminished NER-dependent repair of cisplatin-DNA lesions, compared with control cells treated with cisplatin alone. Both proteasome inhibitors also prevented the increase in ERCC-1 mRNA expression that occurs in cells exposed to cisplatin. Cells treated with the combination of ALLnL and cisplatin underwent apoptosis, as indicated by caspase-dependent poly(ADP-ribose) polymerase (PARP) cleavage, more quickly than cells treated with either agent alone. Additionally, the combination of ALLnL and cisplatin potently increased p53 levels in cell lysates and stimulated the binding of p53 to chromatin. Together, these observations suggest that proteasome inhibition may be exploited therapeutically for its potential to sensitize ovarian tumor cells to cisplatin.
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Affiliation(s)
- E G Mimnaugh
- Tumor Cell Biology Section, Cell and Cancer Biology Department, Medicine Branch, National Cancer Institute, NIH, 20892, Bethesda, MD 20892, USA.
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Bonvini P, Hwang SG, el-Gamil M, Robbins P, Neckers L, Trepel J. Melanoma cell lines contain a proteasome-sensitive, nuclear cytoskeleton-associated pool of beta-catenin. Ann N Y Acad Sci 2000; 886:208-11. [PMID: 10667221 DOI: 10.1111/j.1749-6632.1999.tb09418.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- P Bonvini
- Department of Cell and Cancer Biology, Medicine Branch, National Cancer Institute, National Institutes of Health, Rockville, Maryland 20850, USA.
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Bonvini P, Hwang SG, El-Gamil M, Robbins P, Kim JS, Trepel J, Neckers L. Nuclear beta-catenin displays GSK-3beta- and APC-independent proteasome sensitivity in melanoma cells. Biochim Biophys Acta 2000; 1495:308-18. [PMID: 10699468 DOI: 10.1016/s0167-4889(99)00162-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Colon carcinoma and melanoma cells containing either a deletion of the adenomatous polyposis coli tumor suppressor protein (APC) or mutation of the site in beta-catenin phosphorylated by glycogen synthase kinase-3beta (GSK-3beta) display elevated levels of detergent-soluble beta-catenin due to insensitivity of the cytosolic protein to proteasome-dependent degradation. In this study, we have examined the effect of beta-catenin mutation (S37F) or APC loss on the proteasome sensitivity of additional subcellular beta-catenin pools in melanoma cells. In contrast to detergent-soluble beta-catenin, the detergent-insoluble protein remains proteasome-sensitive irrespective of S37F mutation or APC status. This insoluble component appears associated primarily with nuclear cytoskeletal elements. In addition, DNase I treatment solubilized a portion of detergent-insoluble beta-catenin, suggesting that this fraction also contains chromatin-associated protein, and correlating with a proteasome-sensitive elevation in beta-catenin-stimulated reporter activity. Since the detergent-insoluble nuclear component of beta-catenin displays GSK-3beta- and APC-independent proteasome sensitivity, distinct from the soluble nuclear and cytosolic pools of this protein, regulation of beta-catenin proteasome sensitivity and the contribution of this process to beta-catenin function may be more complex than previously appreciated.
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Affiliation(s)
- P Bonvini
- Department of Cell and Cancer Biology, Medicine Branch, NCI, NIH, 9610 Medical Center Drive, Suite 300, Rockville, MD 20850, USA
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Abstract
Ubiquitination of key cellular proteins involved in signal transduction, gene transcription and cell-cycle regulation usually condemns those proteins to proteasomal or lysosomal degradation. Additionally, cycles of reversible ubiquitination regulate the function of certain proteins in a manner analogous to phosphorylation. In this short review we describe the current methodology for measuring ubiquitin and ubiquitination, provide examples which illustrate how various techniques have been used to study protein ubiquination, alert the readers of pitfalls to avoid, and offer guidelines to investigators newly interested in this novel post-translational protein modification.
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Affiliation(s)
- E G Mimnaugh
- Tumor Cell Biology Section, Medicine Branch, National Cancer Institute, National Institutes of Health, Key West Center, Rockville, MD 20850, USA.
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Abstract
N-myc is a short-lived transcription factor, frequently amplified in human neuroblastomas. The ubiquitin-proteasome system is involved in the degradation of many short-lived cellular proteins and previous studies have shown that ubiquitin-dependent proteolysis is implicated in the turn-over of N-myc in vitro. However, calpain has also been implicated in N-myc degradation in vitro. Here we report that, in vivo, N-myc is a sensitive substrate for the 26S proteasome in N-myc amplified neuroblastoma cells. We observed that inhibition of the 26S proteasome with two inhibitors, ALLnL and lactacystin, led to an elevation of the N-myc protein steady-state and increased N-myc protein polyubiquitination, as revealed by ubiquitin Western blotting. Pulse-chase experiments have shown that the increased N-myc levels resulted from stabilization of the protein. In contrast treatment with several calpain and cathepsin inhibitors failed to block N-myc degradation in vivo. Furthermore, fluorescence microscopy of ALLnL-treated cells localized N-myc exclusively to the nuclear compartment, suggesting the absence of a requirement for transport to the cytoplasm prior to degradation.
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Affiliation(s)
- P Bonvini
- Department of Cell and Cancer Biology, Medicine Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
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Bianchi V, Ferraro P, Borella S, Bonvini P, Reichard P. Effects of mutational loss of nucleoside kinases on deoxyadenosine 5'-phosphate/deoxyadenosine substrate cycle in cultured CEM and V79 cells. J Biol Chem 1994; 269:16677-83. [PMID: 8206987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The functions of a deoxynucleoside kinase and a deoxynucleotidase can give rise to substrate cycles in which the two enzymes catalyze in opposite directions the irreversible interconversion of a deoxynucleoside 5'-monophosphate (dNMP) and its deoxynucleoside. Earlier evidence showed that pyrimidine dNMP cycles occur in cultured cells and participate in the regulation of the size of dNMP pools there by affecting the transport of deoxyribonucleosides across the cell membrane. Here, we apply an isotope flow method using labeled adenine as precursor of dAMP and DNA to quantify deoxyadenosine excretion as a measure of the catabolic activity of a putative dAMP/deoxyadenosine cycle. A comparison of human CEM lymphoblasts and hamster V79 fibroblasts, including mutant cells lacking kinases for the phosphorylation of deoxyadenosine, shows a much lower deoxyadenosine excretion in CEM cells (0.05% of dATP synthesized by reduction of ADP) as compared with V79 cells (4% of dATP). Mutational loss of deoxycytidine kinase increases these values to 0.3% in CEM cells and to 10% in V79 cells. This strongly suggests the presence of a dAMP/deoxyadenosine cycle in both CEM and V79 cells. Additional loss of adenosine kinase only marginally affects deoxyadenosine excretion in CEM cells. The small excretion of deoxyadenosine (also in the absence of both kinases) demonstrates that in CEM cells the in situ activity of the deoxynucleotidase affecting the dAMP/deoxyadenosine substrate cycle is very low and that the cycle has mainly an anabolic function there.
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Affiliation(s)
- V Bianchi
- Department of Biology, University of Padova, Italy
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