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Pignata S, Scambia G, Schettino C, Arenare L, Pisano C, Lombardi D, De Giorgi U, Andreetta C, Cinieri S, De Angelis C, Priolo D, Casanova C, Rosati M, Greco F, Zafarana E, Schiavetto I, Mammoliti S, Cecere SC, Salutari V, Scalone S, Farolfi A, Di Napoli M, Lorusso D, Gargiulo P, Califano D, Russo D, Spina A, De Cecio R, Chiodini P, Perrone F, Accinno V, Altavilla C, Andreetta C, Antonelli G, Arenare L, Artioli G, Avola F, Barbara B, Barbato V, Bartoletti M, Bevilacqua S, Bordonaro R, Borghese O, Buonfanti G, Califano D, Camarda F, Canzanella G, Carbone V, Carbone MR, Carlo Stella G, Casanova C, Cassani C, Castagna F, Cattaneo M, Cecere SC, Chiodini P, Cinefra M, Cinieri S, Colombo N, Corsetti S, Dall'Agata M, D'Amico M, Daniele G, De Angelis C, De Cecio R, De Giorgi U, De Marino E, De Matteis G, De Placido S, Del Bene G, Del Giudice A, Del Monte F, Del Sesto M, Di Napoli M, Donini M, Drudi G, Falcone G, Farolfi A, Favaretto A, Ferrera G, Florio M, Forestieri V, Gallo MS, Gallo C, Gargiulo P, Garibaldi F, Gerevini F, Ghizzoni V, Giganti MO, Gimigliano A, Giudice E, Gnocchi N, Gravina A, Greco F, Greggi S, Iaia ML, Ilardi A, Iovine G, Ippoliti G, Irollo G, Isidori I, Lapresa M, Lavenia G, Lombardi D, Longhitano L, Lorusso D, Lucia B, Luzi G, Mammoliti S, Mariano S, Marino V, Marrapese G, Martino M, Matocci R, Mazzoni E, Mercuri D, Mirto M, Mollo G, Montinaro A, Moscatelli M, Mosconi AM, Musacchio L, Nanni N, Natalucci P, Nicoloso MS, Orditura M, Parma GM, Passalacqua R, Pelone M, Perri MT, Perrone F, Perrucci B, Piancastelli A, Piccirillo MC, Piccolo A, Pignata S, Pisano C, Priolo D, Rapisardi S, Ravaglia G, Ribecco T, Ricci C, Roccio M, Romano F, Rosati M, Russo D, Salutari V, Sambataro D, Savio A, Sbriglia A, Scaffa C, Scalone S, Scambia G, Schettino C, Schiavetto I, Sergi C, Sgandurra F, Sorio R, Spina A, Stabile S, Tabaro G, Tambaro M, Tamberi S, Tecchiato A, Trujillo AM, Zaccarelli E, Zafarana E. Carboplatin and paclitaxel plus avelumab compared with carboplatin and paclitaxel in advanced or recurrent endometrial cancer (MITO END-3): a multicentre, open-label, randomised, controlled, phase 2 trial. Lancet Oncol 2023; 24:286-296. [PMID: 37052965 DOI: 10.1016/s1470-2045(23)00016-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/11/2023] [Accepted: 01/12/2023] [Indexed: 02/16/2023]
Abstract
BACKGROUND Adding immunotherapy to first-line chemotherapy might improve outcomes for patients with advanced or recurrent endometrial cancer. We aimed to compare carboplatin and paclitaxel versus avelumab plus carboplatin and paclitaxel as first-line treatment with avelumab given concurrent to chemotherapy and as maintenance after the end of chemotherapy. METHODS MITO END-3 is an open-label, randomised, controlled, phase 2 trial conducted at 31 cancer institutes, hospitals, and universities in Italy. Eligible patients were aged 18 years or older with histologically confirmed advanced (FIGO stage III-IV) or recurrent endometrial cancer, an Eastern Cooperative Oncology Group (ECOG) performance status of 0-1, and no previous systemic anticancer therapy as primary treatment for advanced or metastatic disease. Participants were randomly assigned (1:1) using a computerised minimisation procedure stratified by centre, histology, and stage at study entry, to either receive carboplatin (area under the curve [AUC] 5 mg/mL × min) and paclitaxel (175 mg/m2; standard group) intravenously every 3 weeks for six to eight cycles or avelumab (10 mg/kg intravenously) added to carboplatin and paclitaxel (experimental group) every 3 weeks and then every 2 weeks as a single maintenance treatment after the end of chemotherapy until disease progression or unacceptable toxicity. Patients, treating clinicians, and those assessing radiological examinations were not masked to study treatment. The primary endpoint was investigator-assessed progression-free survival, measured in the intention-to-treat (ITT) population. Patients who received at least one dose of study drug were included in the safety analysis. Experimental group superiority was tested with 80% power and one-tailed α 0·20. This trial is registered with ClinicalTrials.gov (NCT03503786) and EudraCT (2016-004403-31). FINDINGS From April 9, 2018, to May 13, 2021, 166 women were assessed for eligibility and 39 were excluded. 125 eligible patients were randomly assigned to receive carboplatin and paclitaxel (n=62) or avelumab plus carboplatin and paclitaxel (n=63) and included in the ITT population. The median follow-up was 23·3 months (IQR 13·2-29·6) and was similar between the two groups. 91 progression-free survival events were reported, with 49 events in 62 patients in the standard group and 42 events in 63 patients in the experimental group. The median progression-free survival was 9·9 months (95% CI 6·7-12·1) in the standard group and 9·6 months (7·2-17·7) in the experimental group (HR of progression or death 0·78 [60% CI 0·65-0·93]; one-tailed p=0·085). Serious adverse events were reported more frequently in the experimental group (24 vs seven events in the standard group); neutrophil count decrease was the most frequent grade 3-4 adverse event (19 [31%] of 61 patients in the experimental group vs 26 [43%] of 61 patients in the standard group). Two deaths occurred in the experimental group during treatment (one respiratory failure following severe myositis [possibly related to treatment] and one cardiac arrest [not related to treatment]). INTERPRETATION Adding avelumab to first-line chemotherapy deserves further testing in patients with advanced or recurrent endometrial cancer, although consideration of mismatch repair status is warranted. FUNDING Pfizer.
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Miyazaki K, Schweizer KS, Thirumalai D, Tuinier R, Zaccarelli E. The Asakura–Oosawa theory: Entropic forces in physics, biology, and soft matter. J Chem Phys 2022; 156:080401. [DOI: 10.1063/5.0085965] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- K. Miyazaki
- Department of Physics, Nagoya University, Nagoya 464-8602, Japan
| | - K. S. Schweizer
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, USA
- Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, USA
- Department of Materials Science, University of Illinois, Urbana, Illinois 61801, USA
| | - D. Thirumalai
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, USA
| | - R. Tuinier
- Laboratory of Physical Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - E. Zaccarelli
- CNR-ISC (National Research Council–Institute for Complex Systems) and Department of Physics, Sapienza University of Rome, Rome, Italy
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Daniele G, Raspagliesi F, Scambia G, Pisano C, Colombo N, Frezzini S, Tognon G, Artioli G, Gadducci A, Lauria R, Ferrero A, Cinieri S, De Censi A, Breda E, Scollo P, De Giorgi U, Lissoni AA, Katsaros D, Lorusso D, Salutari V, Cecere SC, Zaccarelli E, Nardin M, Bogani G, Distefano M, Greggi S, Piccirillo MC, Fossati R, Giannone G, Arenare L, Gallo C, Perrone F, Pignata S. Bevacizumab, carboplatin, and paclitaxel in the first line treatment of advanced ovarian cancer patients: the phase IV MITO-16A/MaNGO-OV2A study. Int J Gynecol Cancer 2021; 31:875-882. [PMID: 33931498 DOI: 10.1136/ijgc-2021-002434] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/30/2021] [Accepted: 03/31/2021] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE To explore the clinical and biological prognostic factors for advanced ovarian cancer patients receiving first-line treatment with carboplatin, paclitaxel, and bevacizumab. METHODS A multicenter, phase IV, single arm trial was performed. Patients with advanced (FIGO (International Federation of Gynecology and Obstetrics) stage IIIB-IV) or recurrent, previously untreated, ovarian cancer received carboplatin (AUC (area under the curve) 5), paclitaxel (175 mg/m2) plus bevacizumab (15 mg/kg) on day 1 for six 3-weekly cycles followed by bevacizumab single agent (15 mg/kg) until progression or unacceptable toxicity up to a maximum of 22 total cycles. Here we report the final analysis on the role of clinical prognostic factors. The study had 80% power with a two-tailed 0.01 α error to detect a 0.60 hazard ratio with a factor expressed in at least 20% of the population. Both progression-free and overall survival were used as endpoints. RESULTS From October 2012 to November 2014, 398 eligible patients were treated. After a median follow-up of 32.3 months (IQR 24.1-40.4), median progression-free survival was 20.8 months (95% CI 19.1 to 22.0) and median overall survival was 41.1 months (95% CI 39.1 to 43.5). Clinical factors significantly predicting progression-free and overall survival were performance status, stage, and residual disease after primary surgery. Neither baseline blood pressure/antihypertensive treatment nor the development of hypertension during bevacizumab were prognostic. There were two deaths possibly related to treatment, but no unexpected safety signal was reported. CONCLUSIONS Efficacy and safety of bevacizumab in combination with carboplatin and paclitaxel and as maintenance were comparable to previous data. Hypertension, either at baseline or developed during treatment, was not prognostic. Performance status, stage, and residual disease after primary surgery remain the most important clinical prognostic factors. TRIAL REGISTRATION NUMBER EudraCT 2012-003043-29; NCT01706120.
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Affiliation(s)
- Gennaro Daniele
- Unità Sperimentazioni Cliniche, Istituto Nazionale Tumori IRCCS Fondazione Pascale, Napoli, Italy.,Direzione Scientifica, Policlinico Universitario Agostino Gemelli, Roma, Italy
| | | | - Giovanni Scambia
- Dipartimento Scienze della Salute della Donna e del Bambino, Policlinico Universitario Agostino Gemelli, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Carmela Pisano
- Oncologia Clinica Sperimentale Uro-Ginecologica, Istituto Nazionale Tumori IRCCS Fondazione Pascale, Napoli, Italy
| | - Nicoletta Colombo
- Istituto Europeo di Oncologia IRCCS, and Dipartimento di Medicina e Chirurgia, Università degli Studi di Milano-Bicocca, Milano, Italy
| | - Simona Frezzini
- Oncologia Medica 2, Istituto Oncologico Veneto IRCCS, Padova, Italy
| | - Germana Tognon
- Divisione di Ostetricia e Ginecologia, ASST Spedali Civili di Brescia, Università degli Studi di Brescia, Brescia, Italy
| | - Grazia Artioli
- Oncologia ed Ematologia, U.L.S.S. 13, Mirano (VE), Italy.,Oncologia Medica, ULSS2 Marca Trevigiana, Treviso, Italy
| | - Angiolo Gadducci
- Dipartimento di Medicina Clinica e Sperimentale, UO Ginecologia e Ostetricia, Università degli Studi di Pisa Facolta di Medicina e Chirurgia, Pisa, Italy
| | - Rossella Lauria
- Oncologia Medica, Dipartimento di Medicina Clinica e Chirurgia, Università degli Studi di Napoli Federico II Scuola di Medicina e Chirurgia, Napoli, Italy
| | - Annamaria Ferrero
- Divisione Universitaria di Ginecologia e Ostetricia, Azienda Ospedaliera Ordine Mauriziano di Torino, Torino, Italy
| | - Saverio Cinieri
- Divisione di Oncologia Medica, Ospedale Antonio Perrino, Brindisi, Italy
| | | | - Enrico Breda
- Dipartimento di oncologia, Ospedale San Giovanni Calibita Fatebenefratelli, Roma, Italy
| | - Paolo Scollo
- Divisione di Ostetricia e Ginecologia, Azienda Ospedaliera Cannizzaro, Catania, Italy
| | - Ugo De Giorgi
- Oncologia Medica, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola (FC), Italy
| | | | - Dionyssios Katsaros
- Dipartimento di Scienze Chirurgiche, Ginecologia Oncologica, Ospedale Sant'Anna, Università di Torino, Torino, Italy
| | - Domenica Lorusso
- Chirurgia Ginecologica, Fondazione IRCCS Istituto Nazionale Tumori, Milano, Italy.,Dipartimento Scienze della Salute della Donna e del Bambino, Policlinico Universitario Agostino Gemelli, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Vanda Salutari
- Dipartimento Scienze della Salute della Donna e del Bambino, Policlinico Universitario Agostino Gemelli, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Sabrina Chiara Cecere
- Oncologia Clinica Sperimentale Uro-Ginecologica, Istituto Nazionale Tumori IRCCS Fondazione Pascale, Napoli, Italy
| | - Eleonora Zaccarelli
- Istituto Europeo di Oncologia IRCCS, and Dipartimento di Medicina e Chirurgia, Università degli Studi di Milano-Bicocca, Milano, Italy
| | - Margherita Nardin
- Radiologia, Istituto Oncologico Veneto IRCCS, Università di Padova, Padova, Italy
| | - Giorgio Bogani
- Chirurgia Ginecologica, Fondazione IRCCS Istituto Nazionale Tumori, Milano, Italy
| | - Mariagrazia Distefano
- Dipartimento Scienze della Salute della Donna e del Bambino, Policlinico Universitario Agostino Gemelli, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Stefano Greggi
- Ginecologia Oncologica, Istituto Nazionale Tumori IRCCS Fondazione Pascale, Napoli, Italy
| | - Maria Carmela Piccirillo
- Unità Sperimentazioni Cliniche, Istituto Nazionale Tumori IRCCS Fondazione Pascale, Napoli, Italy
| | - Roldano Fossati
- Istituto di Ricerche Farmacologiche Mario Negri, Milano, Italy
| | - Gaia Giannone
- Dipartimento di Oncologia, Università degli Studi di Torino e Istituto di Candiolo, FPO - IRCCS, Torino, Italy
| | - Laura Arenare
- Unità Sperimentazioni Cliniche, Istituto Nazionale Tumori IRCCS Fondazione Pascale, Napoli, Italy
| | - Ciro Gallo
- Dipartimento di Salute Mentale e Fisica e Medicina Preventiva, Università degli Studi della Campania Luigi Vanvitelli, Napoli, Italy
| | - Francesco Perrone
- Unità Sperimentazioni Cliniche, Istituto Nazionale Tumori IRCCS Fondazione Pascale, Napoli, Italy
| | - Sandro Pignata
- Oncologia Clinica Sperimentale Uro-Ginecologica, Istituto Nazionale Tumori IRCCS Fondazione Pascale, Napoli, Italy
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Franco S, Buratti E, Ruzicka B, Nigro V, Zoratto N, Matricardi P, Zaccarelli E, Angelini R. Volume fraction determination of microgel composed of interpenetrating polymer networks of PNIPAM and polyacrylic acid. J Phys Condens Matter 2021; 33:174004. [PMID: 33524963 DOI: 10.1088/1361-648x/abe1ec] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 02/01/2021] [Indexed: 06/12/2023]
Abstract
Interpenetrated polymer network microgels, composed of crosslinked networks of poly(N-isopropylacrylamide) and polyacrylic acid (PAAc), have been investigated through rheological measurements at four different amounts of PAAc. Both PAAc content and crosslinking degree modify particle dimensions, mass and softness, thereby strongly affecting the volume fraction and the system viscosity. Here the volume fraction is derived from the flow curves at low concentrations by fitting the zero-shear viscosity with the Einstein-Batchelor equation which provides a parameterkto shift weight concentration to volume fraction. We find that particles with higher PAAc content and crosslinker are characterized by a greater value ofkand therefore by larger volume fractions when compared to softer particles. The packing fractions obtained from rheological measurements are compared with those from static light scattering for two PAAc contents revealing a good agreement. Moreover, the behaviour of the viscosity as a function of packing fraction, at room temperature, has highlighted an Arrhenius dependence for microgels synthesized with low PAAc content and a Vogel-Fulcher-Tammann dependence for the highest investigated PAAc concentration. A comparison with the hard spheres behaviour indicates a steepest increase of the viscosity with decreasing particles softness. Finally, the volume fraction dependence of the viscosity at a fixed PAAc and at two different temperatures, below and above the volume phase transition, shows a quantitative agreement with the structural relaxation time measured through dynamic light scattering indicating that interpenetrated polymer network microgels softness can be tuned with PAAc and temperature and that, depending on particle softness, two different routes are followed.
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Affiliation(s)
- S Franco
- Dipartimento di Scienze di Base e Applicate per l'Ingegneria (SBAI), Sapienza Università di Roma, 00185 Roma, Italy
- Instituto dei Sistemi Complessi del Consiglio Nazionale delle Ricerche (ISC-CNR), Sede Sapienza, 00185 Roma, Italy
| | - E Buratti
- Instituto dei Sistemi Complessi del Consiglio Nazionale delle Ricerche (ISC-CNR), Sede Sapienza, 00185 Roma, Italy
| | - B Ruzicka
- Instituto dei Sistemi Complessi del Consiglio Nazionale delle Ricerche (ISC-CNR), Sede Sapienza, 00185 Roma, Italy
- Dipartimento di Fisica, Sapienza Università di Roma, 00185 Roma, Italy
| | - V Nigro
- ENEA Centro Ricerche Frascati, Via Enrico Fermi, 45, 00044 Frascati, Italy
| | - N Zoratto
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, 00185 Roma, Italy
| | - P Matricardi
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, 00185 Roma, Italy
| | - E Zaccarelli
- Instituto dei Sistemi Complessi del Consiglio Nazionale delle Ricerche (ISC-CNR), Sede Sapienza, 00185 Roma, Italy
- Dipartimento di Fisica, Sapienza Università di Roma, 00185 Roma, Italy
| | - R Angelini
- Instituto dei Sistemi Complessi del Consiglio Nazionale delle Ricerche (ISC-CNR), Sede Sapienza, 00185 Roma, Italy
- Dipartimento di Fisica, Sapienza Università di Roma, 00185 Roma, Italy
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Colombo I, Zaccarelli E, Del Grande M, Tomao F, Multinu F, Betella I, Ledermann JA, Gonzalez-Martin A, Sessa C, Colombo N. ESMO management and treatment adapted recommendations in the COVID-19 era: gynaecological malignancies. ESMO Open 2020; 5:S2059-7029(20)32676-4. [PMID: 32718919 PMCID: PMC7388889 DOI: 10.1136/esmoopen-2020-000827] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/02/2020] [Accepted: 06/03/2020] [Indexed: 11/04/2022] Open
Abstract
The rapid spread of severe acute respiratory syndrome coronavirus 2 infection and its related disease (COVID-19) has required an immediate and coordinate healthcare response to face the worldwide emergency and define strategies to maintain the continuum of care for the non-COVID-19 diseases while protecting patients and healthcare providers. The dimension of the COVID-19 pandemic poses an unprecedented risk especially for the more vulnerable populations. To manage patients with cancer adequately, maintaining the highest quality of care, a definition of value-based priorities is necessary to define which interventions can be safely postponed without affecting patients’ outcome. The European Society for Medical Oncology (ESMO) has endorsed a tiered approach across three different levels of priority (high, medium, low) incorporating information on the value-based prioritisation and clinical cogency of the interventions that can be applied for different disease sites. Patients with gynaecological cancer are at particular risk of COVID-19 complications because of their age and prevalence of comorbidities. The definition of priority level should be based on tumour stage and histology, cancer-related symptoms or complications, aim (curative vs palliative) and magnitude of benefit of the oncological intervention, patients’ general condition and preferences. The decision-making process always needs to consider the disease-specific national and international guidelines and the local healthcare system and social resources, and a changing situation in relation to COVID-19 infection. These recommendations aim to provide guidance for the definition of deferrable and undeferrable interventions during the COVID-19 pandemic for ovarian, endometrial and cervical cancers within the context of the ESMO Clinical Practice Guidelines.
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Affiliation(s)
- Ilaria Colombo
- Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Eleonora Zaccarelli
- Department of Gynecologic Oncology, European Institute of Oncology, Milano, Italy
| | - Maria Del Grande
- Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Federica Tomao
- Department of Gynecologic Oncology, European Institute of Oncology, Milano, Italy
| | - Francesco Multinu
- Department of Gynecologic Oncology, European Institute of Oncology, Milano, Italy
| | - Ilaria Betella
- Department of Gynecologic Oncology, European Institute of Oncology, Milano, Italy
| | | | | | - Cristiana Sessa
- Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Nicoletta Colombo
- Department of Gynecologic Oncology, European Institute of Oncology, Milano, Italy
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Zanatta M, Tavagnacco L, Buratti E, Chiessi E, Natali F, Bertoldo M, Orecchini A, Zaccarelli E. Atomic scale investigation of the volume phase transition in concentrated PNIPAM microgels. J Chem Phys 2020; 152:204904. [PMID: 32486676 DOI: 10.1063/5.0007112] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Combining elastic incoherent neutron scattering and differential scanning calorimetry, we investigate the occurrence of the volume phase transition (VPT) in very concentrated poly-(N-isopropyl-acrylamide) (PNIPAM) microgel suspensions, from a polymer weight fraction of 30 wt. % up to dry conditions. Although samples are arrested at the macroscopic scale, atomic degrees of freedom are equilibrated and can be probed in a reproducible way. A clear signature of the VPT is present as a sharp drop in the mean square displacement of PNIPAM hydrogen atoms obtained by neutron scattering. As a function of concentration, the VPT gets smoother as dry conditions are approached, whereas the VPT temperature shows a minimum at about 43 wt. %. This behavior is qualitatively confirmed by calorimetry measurements. Molecular dynamics simulations are employed to complement experimental results and gain further insights into the nature of the VPT, confirming that it involves the formation of an attractive gel state between the microgels. Overall, these results provide evidence that the VPT in PNIPAM-based systems can be detected at different time- and length-scales as well as under overcrowded conditions.
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Affiliation(s)
- M Zanatta
- Department of Physics, University of Trento, I-38123 Trento, Italy
| | - L Tavagnacco
- CNR-ISC and Department of Physics, Sapienza University of Rome, I-00185 Roma, Italy
| | - E Buratti
- CNR-ISC and Department of Physics, Sapienza University of Rome, I-00185 Roma, Italy
| | - E Chiessi
- Department of Chemical Sciences and Technologies, University of Rome Tor Vergata, I-00133 Roma, Italy
| | - F Natali
- CNR-IOM, Operative Group in Grenoble (OGG), c/o Institut Laue Langevin, F-38042 Grenoble, France
| | - M Bertoldo
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, I-44121 Ferrara, Italy
| | - A Orecchini
- Department of Physics and Geology, University of Perugia, I-06123 Perugia, Italy
| | - E Zaccarelli
- CNR-ISC and Department of Physics, Sapienza University of Rome, I-00185 Roma, Italy
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Giovannoni S, Garbi A, Parma G, Lapresa M, Zaccarelli E, Vingiani A, Ardoino I, Pruneri G, Colombo N. Tumour-infiltrating lymphocytes (TILs) in patients with epithelial ovarian cancer undergoing neoadjuvant chemotherapy: A retrospective study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz250.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Colombo N, Zaccarelli E, Baldoni A, Frezzini S, Scambia G, Palluzzi E, Tognon G, Lissoni AA, Rubino D, Ferrero A, Farina G, Negri E, Pesenti Gritti A, Galli F, Biagioli E, Rulli E, Poli D, Gerardi C, Torri V, Fossati R, D‘Incalci M. Multicenter, randomised, open-label, non-comparative phase 2 trial on the efficacy and safety of the combination of bevacizumab and trabectedin with or without carboplatin in women with partially platinum-sensitive recurrent ovarian cancer. Br J Cancer 2019; 121:744-750. [PMID: 31537908 PMCID: PMC6888836 DOI: 10.1038/s41416-019-0584-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 08/27/2019] [Accepted: 08/30/2019] [Indexed: 12/16/2022] Open
Abstract
Background Trabectedin, in addition to its antiproliferative effect, can modify the tumour microenvironment and this could be synergistic with bevacizumab. The efficacy and safety of trabectedin and bevacizumab ± carboplatin have never been investigated. Methods In this phase 2 study, women progressing between 6 and 12 months since their last platinum-based therapy were randomised to Arm BT: bevacizumab, trabectedin every 21 days, or Arm BT+C: bevacizumab, trabectedin and carboplatin every 28 days, from cycles 1 to 6, then trabectedin and bevacizumab as in Arm BT. Primary endpoints were progression-free survival rate (PFS-6) and severe toxicity rate (ST-6) at 6 months, assuming a PFS-6 ≤35% for BT and ≤40% for BT+C as not of therapeutic interest and, for both arms, a ST-6 ≥ 30% as unacceptable. Results BT+C (21 patients) did not meet the safety criteria for the second stage (ST-6 45%; 95%CI: 23%–69%) but PFS-6 was 85% (95%CI: 62%–97%). BT (50 patients) had 75% PFS-6 (95%CI: 60%–87%) and 16% ST-6 (95%CI 7%–30%). Conclusions BT compared favourably with other platinum- and non-platinum-based regimens. The combination with carboplatin needs to be assessed further in a re-modulated safer schedule to confirm its apparent strong activity. Clinical Trial Registration NCT01735071 (Clinicaltrials.gov).
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Ruiz-Franco J, Zaccarelli E, Schöpe HJ, van Megen W. Coincidence of the freezing and the onset of caging in hard sphere and Lennard-Jones fluids. J Chem Phys 2019; 151:104501. [PMID: 31521083 DOI: 10.1063/1.5114720] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In this article, we examine the collective particle dynamics, as expressed by the time correlation function of the longitudinal particle current density, of several different fluids in the vicinity of their freezing points/lines. We consider and compare results obtained by dynamic light scattering for a suspension of hard spheres and by molecular dynamics for fluids with hard sphere and Lennard-Jones interactions. The latter are performed along both an isotherm and an isochore. In all cases, we find a qualitative change in the collective dynamics, within the resolution of the data, when their respective freezing lines are crossed. We associate this change with the onset of caging. The new results for the Lennard-Jones fluid reported here confirm that the occurrence of caging, found previously for systems of hard spheres, is a more general feature that distinguishes a metastable fluid from one in thermodynamic equilibrium.
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Affiliation(s)
- J Ruiz-Franco
- CNR-ISC and Dipartimento di Fisica, Sapienza Università di Roma, P.le A. Moro 2, I-00185 Roma, Italy
| | - E Zaccarelli
- CNR-ISC and Dipartimento di Fisica, Sapienza Università di Roma, P.le A. Moro 2, I-00185 Roma, Italy
| | - H J Schöpe
- Institut für Angewandte Physik, Universität Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany
| | - W van Megen
- Department of Applied Physics, Royal Melbourne Institute of Technology, Melbourne, Victoria 3000, Australia
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10
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Abstract
Thermoresponsive microgels are polymeric colloidal networks that can change their size in response to a temperature variation. This peculiar feature is driven by the nature of the solvent-polymer interactions, which triggers the so-called volume phase transition from a swollen to a collapsed state above a characteristic temperature. Recently, an advanced modelling protocol to assemble realistic, disordered microgels has been shown to reproduce experimental swelling behavior and form factors. In the original framework, the solvent was taken into account in an implicit way, condensing solvent-polymer interactions in an effective attraction between monomers. To go one step further, in this work we perform simulations of realistic microgels in an explicit solvent. We identify a suitable model which fully captures the main features of the implicit model and further provides information on the solvent uptake by the interior of the microgel network and on its role in the collapse kinetics. These results pave the way for addressing problems where solvent effects are dominant, such as the case of microgels at liquid-liquid interfaces.
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Affiliation(s)
- F Camerin
- CNR-ISC, Uos Sapienza, Piazzale A. Moro, 2, 00185, Roma, Italy.
- Dipartimento di Scienze di Base e Applicate per l'Ingegneria, Sapienza Università di Roma, via A. Scarpa, 14, 00161, Roma, Italy.
| | - N Gnan
- CNR-ISC, Uos Sapienza, Piazzale A. Moro, 2, 00185, Roma, Italy
- Dipartimento di Fisica, Sapienza Università di Roma, Piazzale A. Moro, 2, 00185, Roma, Italy
| | - L Rovigatti
- CNR-ISC, Uos Sapienza, Piazzale A. Moro, 2, 00185, Roma, Italy
- Dipartimento di Fisica, Sapienza Università di Roma, Piazzale A. Moro, 2, 00185, Roma, Italy
| | - E Zaccarelli
- CNR-ISC, Uos Sapienza, Piazzale A. Moro, 2, 00185, Roma, Italy.
- Dipartimento di Fisica, Sapienza Università di Roma, Piazzale A. Moro, 2, 00185, Roma, Italy.
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11
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Pignata S, Lorusso D, Joly F, Gallo C, Colombo N, Sessa C, Bamias A, Pisano C, Selle F, Zaccarelli E, Scambia G, Pautier P, Nicoletto MO, De Giorgi U, Dubot C, Bologna A, Orditura M, Ray-Coquard IL, Perrone F, Daniele G. Chemotherapy plus or minus bevacizumab for platinum-sensitive ovarian cancer patients recurring after a bevacizumab containing first line treatment: The randomized phase 3 trial MITO16B-MaNGO OV2B-ENGOT OV17. J Clin Oncol 2018. [DOI: 10.1200/jco.2018.36.15_suppl.5506] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Sandro Pignata
- Istituto Nazionale Tumori “Fondazione G.Pascale”- IRCCS, Naples, Italy
| | | | - Florence Joly
- Département d'Oncologie Médicale, Cancérologie Gynécologique et Urologique Centre François Baclesse - CHU Côte de Nacre, Caen, France
| | - Ciro Gallo
- Università Della Campania "Luigi Vanvitelli", Napoli, Italy
| | - Nicoletta Colombo
- University of Milano-Bicocca and European Institute of Oncology, Milano, Italy
| | - Cristiana Sessa
- IOSI (Oncology Institute of Southern Switzerland), Bellinzona, Switzerland
| | | | - Carmela Pisano
- Istituto Nazionale per lo Studio e la Cura dei Tumori, Fondazione Pascale, IRCCS, Napoli, Italy
| | - Frederic Selle
- Medical Oncology Department, Group Hospitalier Diaconesses Croix Saint-Simon, APREC, Hospital Tenon (AP-HP), Paris, France
| | | | - Giovanni Scambia
- Policlinico Agostino Gemelli - Universita` Cattolica del Sacro Cuore, Rome, Italy
| | - Patricia Pautier
- Medical Oncology Department, Institut Gustave Roussy, Villejuif, France, Villejuif, France
| | | | - Ugo De Giorgi
- Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori IRCCS, Meldola, Italy
| | - Coraline Dubot
- Hôpital René Huguenin/Institut Curie, Saint-Cloud, France
| | - Alessandra Bologna
- Medical Oncology Unit, IRCCS-Arcispedale S. Maria Nuova, Reggio Emilia, Italy
| | | | | | | | - Gennaro Daniele
- Istituto Nazionale per lo Studio e la Cura dei Tumori “Fondazione G. Pascale”- IRCCS, Naples, Italy
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12
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Tavagnacco L, Zaccarelli E, Chiessi E. On the molecular origin of the cooperative coil-to-globule transition of poly(N-isopropylacrylamide) in water. Phys Chem Chem Phys 2018; 20:9997-10010. [PMID: 29619464 PMCID: PMC5932979 DOI: 10.1039/c8cp00537k] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The cooperativity of PNIPAM coil-to-globule transition in water arises from the structuring of solvent in proximity to hydrophobic groups.
By means of atomistic molecular dynamics simulations we investigate the behaviour of poly(N-isopropylacrylamide), PNIPAM, in water at temperatures below and above the lower critical solution temperature (LCST), including the undercooled regime. The transition between water soluble and insoluble states at the LCST is described as a cooperative process involving an intramolecular coil-to-globule transition preceding the aggregation of chains and the polymer precipitation. In this work we investigate the molecular origin of such cooperativity and the evolution of the hydration pattern in the undercooled polymer solution. The solution behaviour of an atactic 30-mer at high dilution is studied in the temperature interval from 243 to 323 K with a favourable comparison to available experimental data. In the water soluble states of PNIPAM we detect a correlation between polymer segmental dynamics and diffusion motion of bound water, occurring with the same activation energy. Simulation results show that below the coil-to-globule transition temperature PNIPAM is surrounded by a network of hydrogen bonded water molecules and that the cooperativity arises from the structuring of water clusters in proximity to hydrophobic groups. Differently, the perturbation of the hydrogen bond pattern involving water and amide groups occurs above the transition temperature. Altogether these findings reveal that even above the LCST PNIPAM remains largely hydrated and that the coil-to-globule transition is related with a significant rearrangement of the solvent in the proximity of the surface of the polymer. The comparison between the hydrogen bonding of water in the surrounding of PNIPAM isopropyl groups and in the bulk displays a decreased structuring of solvent at the hydrophobic polymer–water interface across the transition temperature, as expected because of the topological extension along the chain of such interface. No evidence of an upper critical solution temperature behaviour, postulated in theoretical and thermodynamics studies of PNIPAM aqueous solution, is observed in the low temperature domain.
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Affiliation(s)
- L Tavagnacco
- CNR-ISC, Uos Sapienza, Piazzale A. Moro 2, 00185 Roma, Italy
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13
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Rossi L, Verrico M, Zaccarelli E, Papa A, Colonna M, Strudel M, Vici P, Bianco V, Tomao F. Bevacizumab in ovarian cancer: A critical review of phase III studies. Oncotarget 2017; 8:12389-12405. [PMID: 27852039 PMCID: PMC5355353 DOI: 10.18632/oncotarget.13310] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 10/13/2016] [Indexed: 12/21/2022] Open
Abstract
Bevacizumab (BV) is a humanized monoclonal antibody targeting vascular endothelial growth factor and it is the first molecular-targeted agent to be used for the treatment of ovarian cancer (OC). Randomized Phase III trials evaluated the combination of BV plus standard chemotherapy for first-line treatment of advanced OC and for platinum-sensitive and platinum-resistant recurrent OC. These trials reported a statistically significant improvement in progression-free survival but not in overall survival. Furthermore, BV effectively improved the quality of life with regard to abdominal symptoms in recurrent OC patients. Bevacizumab is associated with adverse events such as hypertension, bleeding, thromboembolism, proteinuria, delayed wound healing, and gastrointestinal events. However, most of these events can be adequately managed. This review describes the latest evidence for BV treatment of OC and selection of patients for personalized treatment.
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Affiliation(s)
- Luigi Rossi
- Department of Medico-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, Oncology Unit, "ICOT," Latina, Italy
| | - Monica Verrico
- Department of Medico-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, Oncology Unit, "ICOT," Latina, Italy
| | - Eleonora Zaccarelli
- Department of Medico-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, Oncology Unit, "ICOT," Latina, Italy
| | - Anselmo Papa
- Department of Medico-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, Oncology Unit, "ICOT," Latina, Italy
| | - Maria Colonna
- Oncology Unit, Dono Svizzero Hospital, Formia, Italy
| | - Martina Strudel
- Department of Medico-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, Oncology Unit, "ICOT," Latina, Italy
| | - Patrizia Vici
- Division of Medical Oncology 2, "Regina Elena" National Cancer Institute, Rome, Italy
| | - Vincenzo Bianco
- Division of Medical Oncology A, "Sapienza" University of Rome, Policlinico "Umberto I", Rome, Italy
| | - Federica Tomao
- Department of Gynaecology and Obstetrics, "Sapienza" University of Rome, Policlinico "Umberto I", Rome, Italy
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14
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Giordani E, Zoratto F, Strudel M, Papa A, Rossi L, Minozzi M, Caruso D, Zaccarelli E, Verrico M, Tomao S. Old Tyrosine Kinase Inhibitors and Newcomers in Gastrointestinal Cancer Treatment. Curr Cancer Drug Targets 2016; 16:175-85. [PMID: 26278713 DOI: 10.2174/1568009615666150817120712] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 07/27/2015] [Accepted: 08/13/2015] [Indexed: 11/22/2022]
Abstract
Gastrointestinal cancer treatment is based more on molecular biology that has provided increasing knowledge about cancer pathogenesis on which targeted therapy is being developed. Precisely, targeted therapy is defined as a "type of treatment that uses drugs, such as monoclonal antibodies or tyrosine kinase inhibitors, to identify and attack specific cancer cells". Nowadays, the United States Food and Drug Administration has approved many targeted therapies for gastrointestinal cancer treatment, as many are in various phases of development as well. In a previous review we discussed the main monoclonal antibodies used and studied in gastrointestinal cancer. In addition to monoclonal antibodies, tyrosine kinase inhibitors represent another class of targeted therapy and following the approval of imatinib for gastrointestinal stromal tumours, other tyrosine kinase inhibitors have been approved for gastrointestinal cancers treatment such as sunitinib, regoragenib, sorafenib and erlotinib. Moving forward, the purpose of this review is to focus on the efficacy data of main tyrosine kinase inhibitors commonly used in the personalized treatment of each gastrointestinal tumour and to provide a comprehensive overview about experimental targeted therapies ongoing in this setting.
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Affiliation(s)
| | | | | | - Anselmo Papa
- Oncology Unit, Ospedale ICOT, Affiliation Address: via Faggiana 1668, 04100 Latina, Italy.
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15
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Harich R, Blythe TW, Hermes M, Zaccarelli E, Sederman AJ, Gladden LF, Poon WCK. Gravitational collapse of depletion-induced colloidal gels. Soft Matter 2016; 12:4300-8. [PMID: 27001686 DOI: 10.1039/c5sm02651b] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We study the ageing and ultimate gravitational collapse of colloidal gels in which the interparticle attraction is induced by non-adsorbing polymers via the depletion effect. The gels are formed through arrested spinodal decomposition, whereby the dense phase arrests into an attractive glass. We map the experimental state diagram onto a theoretical one obtained from computer simulations and theoretical calculations. Discrepancies between the experimental and simulated gel regions in the state diagram can be explained by the particle size and density dependence of the boundary below which the gel is not strong enough to resist gravitational stress. Visual observations show that gravitational collapse of the gels falls into two distinct regimes as the colloid and polymer concentrations are varied, with gels at low colloid concentrations showing the onset of rapid collapse after a delay time. Magnetic resonance imaging (MRI) was used to provide quantitative, spatio-temporally resolved measurements of the solid volume fraction in these rapidly collapsing gels. We find that during the delay time, a dense region builds up at the top of the sample. The rapid collapse is initiated when the gel structure is no longer able to support this dense layer.
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Affiliation(s)
- R Harich
- SUPA and School of Physics & Astronomy, The University of Edinburgh, JCMB, Peter Guthrie Tait Road, Edinburgh EH9 3FD, UK.
| | - T W Blythe
- Magnetic Resonance Research Centre, Department of Chemical Engineering and Biotechnology, University of Cambridge, Pembroke Street, Cambridge CB2 3RA, UK
| | - M Hermes
- SUPA and School of Physics & Astronomy, The University of Edinburgh, JCMB, Peter Guthrie Tait Road, Edinburgh EH9 3FD, UK.
| | - E Zaccarelli
- CNR-ISC Uos Sapienza and Dipartimento di Fisica, Sapienza Università di Roma, P.le A. Moro 2, I-00185, Roma, Italy
| | - A J Sederman
- Magnetic Resonance Research Centre, Department of Chemical Engineering and Biotechnology, University of Cambridge, Pembroke Street, Cambridge CB2 3RA, UK
| | - L F Gladden
- Magnetic Resonance Research Centre, Department of Chemical Engineering and Biotechnology, University of Cambridge, Pembroke Street, Cambridge CB2 3RA, UK
| | - W C K Poon
- SUPA and School of Physics & Astronomy, The University of Edinburgh, JCMB, Peter Guthrie Tait Road, Edinburgh EH9 3FD, UK.
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16
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Papa A, Zaccarelli E, Caruso D, Vici P, Benedetti Panici P, Tomao F. Targeting angiogenesis in endometrial cancer - new agents for tailored treatments. Expert Opin Investig Drugs 2015; 25:31-49. [PMID: 26560489 DOI: 10.1517/13543784.2016.1116517] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
INTRODUCTION Endometrial carcinoma represents the most frequent gynecologic tumor in developed countries. The majority of women presents with low-grade tumors but a significant subset of women experience recurrence and do not survive their disease. Patients with stage III/ IV or recurrent endometrial cancer have a poor prognosis. Identification of active and tolerable new targeted agents versus specific molecular targets is a priority objective. Angiogenesis is a complex process that plays a crucial role in the development of many types of cancer and in particular endometrial cancer. AREAS COVERED In this review, the authors highlight the main angiogenetic molecular pathways and the anti-angiogenic agents in Phase II clinical trials for endometrial cancer treatment. The authors focus on reports from recent years on angiogenesis inhibitors used in endometrial cancer, including anti- vascular endothelial growth factor (VEGF) monoclonal antibodies (bevacizumab and aflibercept), mammalian target of rapamycin inhibitors (mTORi) (everolimus, temsirolimus and ridaforolimus), PI3 K inhibitors (BKM120), tyrosine kinase inhibitors (brivanib, sunitinib, dovitinib and nintedanib) and thalidomide. EXPERT OPINION These anti-angiogenic drugs, while used either alone or in combination with chemotherapy, have presented mixed results in treating endometrial cancer patients. Challenges for the future include the identification of new pathways, early identification and overcoming resistance and the use of these molecules in combination with old and new chemotherapeutic and targeted agents.
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Affiliation(s)
- Anselmo Papa
- a Department of Medico-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, Oncology Unit , Istituto Chirurgico Ortopedico Traumatologico , 04100 Latina , Italy
| | - Eleonora Zaccarelli
- a Department of Medico-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, Oncology Unit , Istituto Chirurgico Ortopedico Traumatologico , 04100 Latina , Italy
| | - Davide Caruso
- a Department of Medico-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, Oncology Unit , Istituto Chirurgico Ortopedico Traumatologico , 04100 Latina , Italy
| | - Patrizia Vici
- b Division of Medical Oncology B , Regina Elena National Cancer Institute , 00144 Rome , Italy
| | - Pierluigi Benedetti Panici
- c Department of Gynecological, Obstetrical and Urologic Sciences , "Sapienza" University of Rome , 00186 Rome , Italy
| | - Federica Tomao
- c Department of Gynecological, Obstetrical and Urologic Sciences , "Sapienza" University of Rome , 00186 Rome , Italy
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Spinelli G, Stati V, Papa A, Rossi L, Minozzi M, Verrico M, Caruso D, Zaccarelli E, Zoratto F, Strudel M, Giordani E, Magaro G, Rosati S, Angius G, Rossi B, Tomao S. Oral Vinorelbine as single agent in the treatment of poor Performance Status (pPS) metastatic Non Small Cell Lung Cancer (NSCLC): a single institution experience. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv343.51] [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: 11/12/2022] Open
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18
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Rossi L, Papa A, Tomao F, Caruso D, Ricci F, Verrico M, Giordani E, Perrone Congedi F, Giannarelli D, Zaccarelli E, Minozzi M, Spinelli G, Stati V, Tomao S. Primary prophylaxis of neutropenia in women affected by breast cancer undergoing adjuvant chemotherapy with fec 100 +/- docetaxel: comparison of efficacy and tolerability between lenograstim and pegfilgrastim. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv336.65] [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: 11/14/2022] Open
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Tomao F, Papa A, Zaccarelli E, Rossi L, Caruso D, Minozzi M, Vici P, Frati L, Tomao S. Triple-negative breast cancer: new perspectives for targeted therapies. Onco Targets Ther 2015; 8:177-93. [PMID: 25653541 PMCID: PMC4303459 DOI: 10.2147/ott.s67673] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Breast cancer is a heterogeneous disease, encompassing a large number of entities showing different morphological features and having clinical behaviors. It has became apparent that this diversity may be justified by distinct patterns of genetic, epigenetic, and transcriptomic aberrations. The identification of gene-expression microarray-based characteristics has led to the identification of at least five breast cancer subgroups: luminal A, luminal B, normal breast-like, human epidermal growth factor receptor 2, and basal-like. Triple-negative breast cancer is a complex disease diagnosed by immunohistochemistry, and it is characterized by malignant cells not expressing estrogen receptors or progesterone receptors at all, and human epidermal growth factor receptor 2. Along with this knowledge, recent data show that triple-negative breast cancer has specific molecular features that could be possible targets for new biological targeted drugs. The aim of this article is to explore the use of new drugs in this particular setting, which is still associated with poor prognosis and high risk of distant recurrence and death.
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Affiliation(s)
- Federica Tomao
- Department of Gynecology and Obstetrics, “Sapienza” University of Rome, Policlinico “Umberto I”, Rome, Italy
| | - Anselmo Papa
- Department of Medico-Surgical Sciences and Biotechnologies, “Sapienza” University of Rome, Oncology Unit, Istituto Chirurgico Ortopedico Traumatologico, Latina, Italy
| | - Eleonora Zaccarelli
- Department of Medico-Surgical Sciences and Biotechnologies, “Sapienza” University of Rome, Oncology Unit, Istituto Chirurgico Ortopedico Traumatologico, Latina, Italy
| | - Luigi Rossi
- Department of Medico-Surgical Sciences and Biotechnologies, “Sapienza” University of Rome, Oncology Unit, Istituto Chirurgico Ortopedico Traumatologico, Latina, Italy
| | - Davide Caruso
- Department of Medico-Surgical Sciences and Biotechnologies, “Sapienza” University of Rome, Oncology Unit, Istituto Chirurgico Ortopedico Traumatologico, Latina, Italy
| | - Marina Minozzi
- Department of Medico-Surgical Sciences and Biotechnologies, “Sapienza” University of Rome, Oncology Unit, Istituto Chirurgico Ortopedico Traumatologico, Latina, Italy
| | - Patrizia Vici
- Division of Medical Oncology B, Regina Elena National Cancer Institute, Rome, Italy
| | - Luigi Frati
- Department of Molecular Medicine, “Sapienza” University of Rome, Policlinico “Umberto I”, Rome, Italy
| | - Silverio Tomao
- Department of Medico-Surgical Sciences and Biotechnologies, “Sapienza” University of Rome, Oncology Unit, Istituto Chirurgico Ortopedico Traumatologico, Latina, Italy
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20
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Quinn MK, Gnan N, James S, Ninarello A, Sciortino F, Zaccarelli E, McManus JJ. How fluorescent labelling alters the solution behaviour of proteins. Phys Chem Chem Phys 2015; 17:31177-87. [DOI: 10.1039/c5cp04463d] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The impact of adding a fluorescent dye to a protein is examined using protein phase diagrams and numerical simulations. The addition of the dye is the equivalent of adding a large attractive patch to the surface of the protein, which results in significant changes to the protein solution behaviour.
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Affiliation(s)
- M. K. Quinn
- Department of Chemistry
- Maynooth University
- Maynooth
- Ireland
| | - N. Gnan
- CNR-ISC UOS Sapienza
- 00186 Roma
- Italy
| | - S. James
- Department of Chemistry
- Maynooth University
- Maynooth
- Ireland
| | - A. Ninarello
- Dipartimento di Fisica
- “Sapienza” Universita’ di Roma
- Roma
- Italy
| | - F. Sciortino
- CNR-ISC UOS Sapienza
- 00186 Roma
- Italy
- Dipartimento di Fisica
- “Sapienza” Universita’ di Roma
| | - E. Zaccarelli
- CNR-ISC UOS Sapienza
- 00186 Roma
- Italy
- Dipartimento di Fisica
- “Sapienza” Universita’ di Roma
| | - J. J. McManus
- Department of Chemistry
- Maynooth University
- Maynooth
- Ireland
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21
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Tomao F, Papa A, Rossi L, Zaccarelli E, Caruso D, Zoratto F, Benedetti Panici P, Tomao S. Angiogenesis and antiangiogenic agents in cervical cancer. Onco Targets Ther 2014; 7:2237-48. [PMID: 25506227 PMCID: PMC4259513 DOI: 10.2147/ott.s68286] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [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] [Indexed: 12/23/2022] Open
Abstract
Standard treatment of cervical cancer (CC) consists of surgery in the early stages and of chemoradiation in locally advanced disease. Metastatic CC has a poor prognosis and is usually treated with palliative platinum-based chemotherapy. Current chemotherapeutic regimens are associated with significant adverse effects and only limited activity, making identification of active and tolerable novel targeted agents a high priority. Angiogenesis is a complex process that plays a crucial role in the development of many types of cancer. The dominant role of angiogenesis in CC seems to be directly related to human papillomavirus-related inhibition of p53 and stabilization of hypoxia-inducible factor-1α. Both of these mechanisms are able to increase expression of vascular endothelial growth factor (VEGF). Activation of VEGF promotes endothelial cell proliferation and migration, favoring formation of new blood vessels and increasing permeability of existing blood vessels. Since bevacizumab, a recombinant humanized monoclonal antibody binding to all isoforms of VEGF, has been demonstrated to significantly improve survival in gynecologic cancer, some recent clinical research has explored the possibility of using novel therapies directed toward inhibition of angiogenesis in CC too. Here we review the main results from studies concerning the use of antiangiogenic drugs that are being investigated for the treatment of CC.
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Affiliation(s)
- Federica Tomao
- Department of Gynecology and Obstetrics, Sapienza University of Rome, Policlinico Umberto I, Rome, Italy
| | - Anselmo Papa
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Oncology Unit, ICOT, Latina, Italy
| | - Luigi Rossi
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Oncology Unit, ICOT, Latina, Italy
| | - Eleonora Zaccarelli
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Oncology Unit, ICOT, Latina, Italy
| | - Davide Caruso
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Oncology Unit, ICOT, Latina, Italy
| | - Federica Zoratto
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Oncology Unit, ICOT, Latina, Italy
| | - Pierluigi Benedetti Panici
- Department of Gynecology and Obstetrics, Sapienza University of Rome, Policlinico Umberto I, Rome, Italy
| | - Silverio Tomao
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Oncology Unit, ICOT, Latina, Italy
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Papa A, Caruso D, Tomao S, Rossi L, Zaccarelli E, Tomao F. Triple-negative breast cancer: investigating potential molecular therapeutic target. Expert Opin Ther Targets 2014; 19:55-75. [PMID: 25307277 DOI: 10.1517/14728222.2014.970176] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Triple-negative breast cancer (TNBC) makes up about 10 - 20% of all breast cancers and the lack of hormone receptors and human epidermal growth factor receptor-2/Neu expression is responsible for poor prognosis, no targeted therapies and trouble in the clinical management. Tumor heterogeneity, also within the same tumor, is a major cause for this difficulty. Based on the introduction of new biological drugs against different kinds of tumor, many efforts have been made for classification of genetic alterations present in TNBC, leading to the identification of several oncogenes and tumor suppressor genes involved in breast cancer carcinogenesis. AREAS COVERED In this review we investigated the molecular alteration present in TNBC which could lead to the creation of new targeted therapies in the future, with the aim to counteract this disease in the most effective way. EXPERT OPINION In this context some hormone receptors like G-protein-coupled receptor 30 and androgen receptors may be a fascinating area to investigate; also, angiogenesis, represented not only by the classical VEGF/VEGFR relationship, but also by other molecules, like semaphorins, fibroblast growth factor and heparin-binding-EGF-like, is a mechanism in which new developments are expected. In this perspective, one technique that may show promise is the gene therapy; in particular the gene transfer could correct abnormal genetic function in cancer cells.
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Affiliation(s)
- Anselmo Papa
- Faculty of Pharmacy and Medicine, "Sapienza" University of Rome, Oncology Unit - ICOT, Via Franco Faggiana, 1668, Department of medico-surgical sciences and biotechnologies , Latina , Italy +3907736513342 ;
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Verrico M, Rossi L, Tomao F, Giordani E, Zaccarelli E, PAPA ANSELMO, Strudel M, Rinaldi G, Perrone-Congedi F, Caruso D, Spinelli GP, Capalbo C, Lo Russo G, Evangelista S, Bianchi L, Stati V, Prete AA, Tomao S. The role of BMI and age in chemotherapy-induced amenorrhea (CIA) in premenopausal breast cancer (PBC) patients treated with adjuvant FEC100 with or without docetaxel (D). J Clin Oncol 2014. [DOI: 10.1200/jco.2014.32.15_suppl.e12000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Monica Verrico
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT -, Latina, Italy
| | - Luigi Rossi
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT -, Latina, Italy
| | | | - Erika Giordani
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Eleonora Zaccarelli
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - ANSELMO PAPA
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Martina Strudel
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT -, Latina, Italy
| | - Giulia Rinaldi
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Francesca Perrone-Congedi
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Davide Caruso
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Gian Paolo Spinelli
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Carlo Capalbo
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Giuseppe Lo Russo
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT -, Latina, Italy
| | - Salvatore Evangelista
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Loredana Bianchi
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Valeria Stati
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Alessandra Anna Prete
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Silverio Tomao
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT -, Latina, Italy
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PAPA ANSELMO, Rossi L, Caruso D, Tomao F, Rinaldi G, Zaccarelli E, Giordani E, Verrico M, Strudel M, Spinelli GP, Capalbo C, Lo Russo G, Evangelista S, Ricci F, Perrone-Congedi F, Bianchi L, Stati V, Prete AA, Tomao S. Single-center experience with pegfilgrastim (P) and lenograstim (L) in nonmetastatic breast cancer (NMBC) patients (pts) during adjuvant FEC100 or sequential FEC100 plus DOCETAXEL100 (D100). J Clin Oncol 2014. [DOI: 10.1200/jco.2014.32.15_suppl.e12005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- ANSELMO PAPA
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Luigi Rossi
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT -, Latina, Italy
| | - Davide Caruso
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | | | - Giulia Rinaldi
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Eleonora Zaccarelli
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Erika Giordani
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Monica Verrico
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT -, Latina, Italy
| | - Martina Strudel
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT -, Latina, Italy
| | - Gian Paolo Spinelli
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Carlo Capalbo
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Giuseppe Lo Russo
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT -, Latina, Italy
| | - Salvatore Evangelista
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Fabio Ricci
- Department of Breast Surgery - S.M. Goretti Hospital, Latina, Italy
| | - Francesca Perrone-Congedi
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Loredana Bianchi
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Valeria Stati
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Alessandra Anna Prete
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT - “Sapienza” University of Rome, Latina, Italy
| | - Silverio Tomao
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, ICOT -, Latina, Italy
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Basso E, Rossi L, Tomao F, Papa A, Zaccarelli E, Spinelli G, Russo GL, Zoratto F, Strudel M, Stati V, Tomao S. M372 INCIDENCE OF AMENORRHEA IN PREMENOPAUSAL WOMEN WITH BREAST CANCER (BC) UNDERGOING CHEMOTHERAPY (CT) WITH ANTHRACYCLINE (A), CYCLOPHOSPHAMIDE (C) AND DOCETAXEL (T). Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)61563-x] [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: 10/27/2022]
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Zoratto F, Rossi L, Zullo A, Papa A, Zaccarelli E, Tomao L, Giordani E, Colonna M, Baiano G, Tomao S. Critical appraisal of bevacizumab in the treatment of metastatic colorectal cancer. Onco Targets Ther 2012; 5:199-211. [PMID: 23055745 PMCID: PMC3460673 DOI: 10.2147/ott.s30581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Colorectal cancer is one of the most common cancers worldwide. The prognosis of patients with metastatic colorectal cancer in recent years has increased from 5 months with best supportive care to nearly 2 years with chemotherapy combined with bevacizumab, an antivascular endothelial growth factor monoclonal antibody. New prognostic and predictive biomarkers have been identified to guide chemotherapy in metastatic colorectal cancer, such as KRAS and BRAF oncogenes. However, the status of these oncogenes does not affect the efficacy of bevacizumab, and biomarkers predicting response to treatment with bevacizumab are still lacking. Addition of bevacizumab to regimens based on fluoropyrimidines or irinotecan has been shown to improve overall survival in treatment-naïve patients with metastatic colorectal cancer. Similarly, a significant increase in overall survival rate is achieved by adding bevacizumab to fluoropyrimidines and oxaliplatin in patients with disease progression. Bevacizumab has been found to be effective even when used as third-line therapy and later. In addition, cohort studies have shown that bevacizumab improves survival significantly despite disease progression. Finally, bevacizumab therapy in the neoadjuvant setting for the treatment of liver metastasis is well tolerated, safe, and effective.
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Affiliation(s)
- Federica Zoratto
- Department of Medico-Surgical Sciences and Biotechnologies, "Sapienza" University, Oncology Unit, "SM Goretti" Hospital, Latina
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Papa A, Rossi L, Tomao F, Ricci F, Giordani E, Spinelli GP, Lo Russo G, Basso E, Verrico M, Zaccarelli E, Rinaldi G, Stati V, Pasciuti G, Strudel M, Zoratto F, Tomao S. Efficacy, safety, and cost-effectiveness (CE) analysis of pegfilgrastim (P) and lenograstim (L) in patients (pts) with nonmetastatic breast cancer (nmBC) receiving myelosuppressive chemotherapy (mCT). J Clin Oncol 2012. [DOI: 10.1200/jco.2012.30.15_suppl.e19620] [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: 11/20/2022] Open
Abstract
e19620 Background: Neutropenia (N) is common in pts who receive mCT. This retrospective study was conducted to determine efficacy, safety and cost of single injection of P (6 mg) compared with daily L (263 μg), in primary prophilaxis of N in pts affected by nmBC, who received mCT. Methods: 50 women (median age 54 years) underwent to median 6 (range 4–8) CT doses with antracyclines +/- taxanes. At every cycle, 28 pts received daily L (median 5 injections from day 5 to 9), while 22 pts received one dose of P on day 2. Absolute neutrophil count, incidence of G3/G4-N, bone pain (BP: Numerical Rate Scale >7) and CE analysis were evaluated. Results: In overall population (OP) incidence of G3-N and G4-N was 25% and 68%, respectively in L vs 22.7% and 41%, respectively in P; two cases (7%) of febrile N (FN) occurred in pts treated with L and three cases (13.6%) of FN in P. In 19 pts treated with FEC100 (10 pts L vs 9 pts P) we observed 0% of G3-N and 30% of G4-N in L while 33% of G3-N and 44% of G4-N in P. 31 pts received TAC/AC+T (18 pts L vs 13 pts P) with G3-N and G4-N 38.8% and 66.6%, respectively in L vs 15.3% and 30.7%, respectively in P. 18.2% of pts, who received P, had BP vs 35.7% in L. Reduction of CT doses was observed in 35.7% in L vs 41% in P. In Italy the cost of 1 injection of P was about 1489,00 euro compared with about 655,00 euro for 5 injections of L. Conclusions: In our experience, 1 injection of P was more effective and expensive than 5 daily administration of L to control N in OP and in particular in TAC/AC+T, while in FEC100, L was satisfactory with good CE profile. No difference about incidence of NF. Safety of P and L were similar with a lower incidence of BP in P.
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Affiliation(s)
- Anselmo Papa
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Luigi Rossi
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | | | | | - Erika Giordani
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Gian Paolo Spinelli
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Giuseppe Lo Russo
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Enrico Basso
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Monica Verrico
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Eleonora Zaccarelli
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Giulia Rinaldi
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Valeria Stati
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Giulia Pasciuti
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Martina Strudel
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Federica Zoratto
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Silverio Tomao
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
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Rossi L, Tomao F, Papa A, Zoratto F, Ricci F, Spinelli GP, Lo Russo G, Basso E, Caprio G, Barberi S, Verrico M, Giordani E, Zaccarelli E, Rinaldi G, Stati V, Pasciuti G, Strudel M, Tomao S. Nonpegylated liposomal doxorubicin (nPLD) in neoadjuvant treatment of local advanced breast cancer (LABC) patients (pts). J Clin Oncol 2012. [DOI: 10.1200/jco.2012.30.15_suppl.e11514] [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: 11/20/2022] Open
Abstract
e11514 Background: Anthracycline is very effective in treatment of breast cancer, however it can cause cardiac toxicity events. nPLD has greater safety profile and comparable efficacy than conventional anthracyclines. We evaluated safety and efficacy, in neoadjuvant setting, of nPLD in pts with LABC. Methods: 11 pts (median age 57 years). Their clinical stage was: stages IIA and IIB 1 pt respectively, IIIB 7 pts, IIIC 2 pts. 8 pts presented at diagnosis with cT4 disease. All pts were treated with nPLD (50 mg/mq, d1q21) plus Docetaxel (75 mg/mq, d1q21) and Cyclophosphamide (500 mg/mq, d1q21); only 1 pt received Cyclophosphamide, nPLD and Trastuzumab. At beginning of therapy, overall population had left ventricular ejection fraction (LVEF) ≥55%. Results: After a median of 4 chemotherapy cycles, we observed following clinical response: stable disease 2 pts (18%); partial response 7 pts (64%); complete response 2 pts (18%). 9 pts were evaluable for radiological response: objective response rate and clinical benefit were 78 % and 100% respectively. 8 pts underwent surgery, in 3 pts was performed breast-conserving surgery. At the definitive histological examination pathologic stage was: IA 4 pts (50%), IIIA 1 pts (12,5%), IIIB 2 pts (25%) and IIIC 1 pts (12,5%). 2 pts experienced cardiac toxicity: 1 pt had an atrial fibrillation G2 while 1 pt had an symptomatic decline of LVEF G3 after first cycle, causing interruption of treatment. Other pts not showed clinically significant reduction of LVEF (>5%). Conclusions: Despite small number of pts, our experience suggests a safety profile and efficacy of nPLD in neoadjuvant settings for LABC; breast conservation was possible in 3 pts, in other pts (73%) this was not possible mainly for the advanced stage (T4).
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Affiliation(s)
- Luigi Rossi
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | | | - Anselmo Papa
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Federica Zoratto
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | | | - Gian Paolo Spinelli
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Giuseppe Lo Russo
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Enrico Basso
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Giuliana Caprio
- Department of Experimental Medicine and Pathology, University of Rome, Roma, Italy
| | - Simona Barberi
- Department of Experimental Medicine and Pathology, University of Rome, Roma, Italy
| | - Monica Verrico
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Erika Giordani
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Eleonora Zaccarelli
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Giulia Rinaldi
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Valeria Stati
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Giulia Pasciuti
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital, University of Rome, Latina, Italy
| | - Martina Strudel
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Silverio Tomao
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
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Spinelli GP, Lo Russo G, Miele E, Alberti AM, Strudel M, Stati V, Zoratto F, Papa A, Rossi L, Verrico M, Basso E, Giordani E, Zaccarelli E, Minozzi M, Codacci Pisanelli G, Tomao S. “Long extended” temozolomide in a selected population with not radically resected high-grade gliomas. J Clin Oncol 2012. [DOI: 10.1200/jco.2012.30.15_suppl.e12510] [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: 11/20/2022] Open
Abstract
e12510 Background: Despite the important progress in the treatment of solid tumors, high grade gliomas (HGGs) remain neoplasm with poor prognosis, especially when are not radically resected. Here we report the results of a selected population treated with standard schedule of Radiotherapy (RT) + Temozolomide (TMZ) followed by TMZ until progression. Methods: From January 2008 to January 2010, 14 newly diagnosed HGG patients, with median age of 50.6 years (range 27-75 yrs), were enrolled at Oncology Unit of S. Maria Goretti Hospital in Latina (University of Rome “Sapienza”). All patients were not radically resected and with ECOG PS=O. Furthermore patients were selected according to O6 Methyl-Guanine-DNA-Methyl Transferase (MGMT) promoter methylation status. Only methylated patients were included in our study. After surgery, patients received standard treatment with TMZ (75 mg/m2) concomitant with RT (60 Gy total dose). After a break of six weeks, Magnetic Resonance Imaging (MRI) was performed and all patients with stable or responsive disease received TMZ (150mg/200mg/m2/d x 5dq 28d) until progression. The response to treatment was evaluated according to RANO criteria Results: In our study the results showed one year overall survival (OS) and progression free survival (PFS) rates of 85,7% and 71,4% respectively. Moreover we observed two years OS rate of 70% and two years PFS rate of 10%. A total of 108 cycles of adjuvant TMZ were administered with average number of 9 per patient (range 1-16). The most frequent side effects observed were haematological toxicity and fatigue. Thrombocytopenia (G2-G3) was observed in 42% of patients, neutropenia (G2-G3), fatigue (G2-G3) and nausea (G2-G3) in 30%, 32% and 25% of patients respectively. Conclusions: Despite the small number of patients, our experience suggests a manageable safety profile and a good efficacy of TMZ until progression in a selected population of patients (HGGs not radically resected, with a good ECOG PS). These data also confirms the literature knowledge, underlining the prognostic positive impact of MGMT promoter methylation in patients with HGG.
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Affiliation(s)
- Gian Paolo Spinelli
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Giuseppe Lo Russo
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Evelina Miele
- Department of Molecular Medicine, University of Rome, Rome, Italy
| | | | - Martina Strudel
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Valeria Stati
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Federica Zoratto
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Anselmo Papa
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Luigi Rossi
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Monica Verrico
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Enrico Basso
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Erika Giordani
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Eleonora Zaccarelli
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Marina Minozzi
- Department of Medical-Surgical Science and Biotechnology, University of Rome, Latina, Italy
| | | | - Silverio Tomao
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
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Basso E, Rossi L, Tomao F, Papa A, Zaccarelli E, Spinelli GP, Lo Russo G, Zoratto F, Giordani E, Alberti AM, Verrico M, Strudel M, Pasciuti G, Stati V, Rinaldi G, Tomao S. Incidence of chemotherapy (CT)-induced amenorrhea in premenopausal patients (pts) with breast cancer (BC) following adjuvant anthracycline (A), cyclophosphamide (C), and taxane (T). J Clin Oncol 2012. [DOI: 10.1200/jco.2012.30.15_suppl.e11039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e11039 Background: CT may induce amenorrhea or menopause to a variable extent. These side-effects may impair or impede fertility, cause sexual dysfunction, bone loss and menopausal symptoms in many women. We analyzed incidence of amenorrhea in premenopausal pts affected by BC treated with CT. Methods: In this retrospective study we evaluated the incidence of amenorrhea in 24 premenopausal BC pts (43 median age years) treated with adjuvant A + C +/- T based CT. Overall population (OP) had regular menstrual cycle and no pts began hormone therapy, at the same time. Results: 10 pts (42%) received only A + C, 6 pts (25%) received A + C + T, 8 pts (33%) received A + C and after T. In 22 pts (92%) amenorrhea appeared during CT; in particular, 9/10 pts (90%) treated with A + C , 5/6 pts (83%) with A + C + T and 8/8 pts (100%) with A + C and after T. In OP amenorrhea appeared during first three cycles of CT in 18 pts (82%) and particularly 7 pts (32%) after 1 cycle, 7 pts (32%) after 2 cycles, 4 pts (18%) after 3 cycles and 4 pts (18%) in subsequent doses. Amenorrhea occurred within the first two doses of treatment in 14/22 pts (64%); in 6/9 pts (66.7%) treated with A + C, in 4/5 pts (80%) with A + C + T and in 4/8 (50%) with A + C and after T. In 7 pts (32%), median age 40 years, at the end of CT reappeared menstrual cycle. Conclusions: In our small experience the incidence of amenorrhea during CT was extremely high and there are no differences between subgroups undergoing to CT with A + C alone or combined with T. In the group of pts in which T were given concomitant with A and C, amenorrhea occurred earlier than the other two groups. Menstrual cycle reappeared at the end of CT in younger pts.
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Affiliation(s)
- Enrico Basso
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Luigi Rossi
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | | | - Anselmo Papa
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Eleonora Zaccarelli
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Gian Paolo Spinelli
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Giuseppe Lo Russo
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Federica Zoratto
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Erika Giordani
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | | | - Monica Verrico
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Martina Strudel
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Giulia Pasciuti
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Valeria Stati
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Giulia Rinaldi
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
| | - Silverio Tomao
- Department of Medico-Surgical Sciences and Biotechnologies, Oncology Unit, Santa Maria Goretti Hospital - University of Rome, Latina, Italy
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31
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Pacetti P, Giovannetti E, Mambrini A, Zaccarelli E, Orlandi M, Alecci C, Tartarini R, Giancola F, Godefridus J, Cantore M. 6639 POSTER Polymorphisms Associated With the Clinical Outcome of Biliary Tract Cancer (BTC) Patients Treated With the Epirubicin, Cisplatin and Capecitabine (ECX) Regimen. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)71950-5] [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: 11/26/2022]
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32
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Lonetti B, Camargo M, Stellbrink J, Likos CN, Zaccarelli E, Willner L, Lindner P, Richter D. Ultrasoft colloid-polymer mixtures: structure and phase diagram. Phys Rev Lett 2011; 106:228301. [PMID: 21702636 DOI: 10.1103/physrevlett.106.228301] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Indexed: 05/31/2023]
Abstract
Binary mixtures of ultrasoft colloids and linear polymer chains were investigated by small-angle neutron scattering and liquid state theory. We show that experimental data can be described by employing recently developed effective interactions between the colloid and the polymer chains, in which both components are modeled as point particles in a coarse-grained approach, in which the monomers have been traced out. Quantitative, parameter-free agreement between experiment and theory for the pair correlations, the phase behavior and the concentration dependence of the interaction length is achieved.
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Affiliation(s)
- B Lonetti
- JCNS-1 and ICS-1, Forschungszentrum Jülich, Jülich, Germany
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33
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Abstract
We report new results from our programme of molecular dynamics simulation of hard-sphere systems, focusing on crystallization and glass formation at high concentrations. First we consider a much larger system than hitherto, N = 86 400 equal-sized particles. The results are similar to those obtained with a smaller system, studied previously, showing conventional nucleation and growth of crystals at concentrations near melting and crossing over to a spinodal-like regime at higher concentrations where the free energy barrier to nucleation appears to be negligible. Second, we investigate the dependence on the initial state of the system. We have devised a Monte Carlo 'constrained aging' method to move the particles in such a way that crystallization is discouraged. After a period of such aging, the standard molecular dynamics programme is run. For a system of N = 3200, we find that constrained aging encourages caging of the particles and slows crystallization somewhat. Nevertheless, both aged and unaged systems crystallize at volume fraction φ = 0.61 whereas neither system shows full crystallization in the duration of the simulation at φ = 0.62, a concentration still significantly below that of random close packing.
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Affiliation(s)
- C Valeriani
- SUPA, School of Physics and Astronomy, The University of Edinburgh, Edinburgh, UK.
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34
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Corezzi S, Fioretto D, De Michele C, Zaccarelli E, Sciortino F. Modeling the Crossover between Chemically and Diffusion-Controlled Irreversible Aggregation in a Small-Functionality Gel-Forming System. J Phys Chem B 2010; 114:3769-75. [DOI: 10.1021/jp911165b] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S. Corezzi
- Dipartimento di Fisica, Università di Perugia, Via A. Pascoli, I-06100 Perugia, Italy, and Dipartimento di Fisica and CNR-ISC, Università di Roma “La Sapienza”, Piazzale A. Moro 2, I-00185 Roma, Italy
| | - D. Fioretto
- Dipartimento di Fisica, Università di Perugia, Via A. Pascoli, I-06100 Perugia, Italy, and Dipartimento di Fisica and CNR-ISC, Università di Roma “La Sapienza”, Piazzale A. Moro 2, I-00185 Roma, Italy
| | - C. De Michele
- Dipartimento di Fisica, Università di Perugia, Via A. Pascoli, I-06100 Perugia, Italy, and Dipartimento di Fisica and CNR-ISC, Università di Roma “La Sapienza”, Piazzale A. Moro 2, I-00185 Roma, Italy
| | - E. Zaccarelli
- Dipartimento di Fisica, Università di Perugia, Via A. Pascoli, I-06100 Perugia, Italy, and Dipartimento di Fisica and CNR-ISC, Università di Roma “La Sapienza”, Piazzale A. Moro 2, I-00185 Roma, Italy
| | - F. Sciortino
- Dipartimento di Fisica, Università di Perugia, Via A. Pascoli, I-06100 Perugia, Italy, and Dipartimento di Fisica and CNR-ISC, Università di Roma “La Sapienza”, Piazzale A. Moro 2, I-00185 Roma, Italy
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35
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Ruzicka B, Zulian L, Zaccarelli E, Angelini R, Sztucki M, Moussaïd A, Ruocco G. Competing interactions in arrested States of colloidal clays. Phys Rev Lett 2010; 104:085701. [PMID: 20366947 DOI: 10.1103/physrevlett.104.085701] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2009] [Indexed: 05/29/2023]
Abstract
Using experiments, theory and simulations, we show that the arrested state observed in a colloidal clay at high concentrations is stabilized by screened Coulomb repulsion (Wigner glass). Dilution experiments allow us to distinguish this disconnected state, which melts upon addition of water, from a low-concentration gel state, which does not melt. Theoretical modeling and simulations at high concentrations reproduce the measured small angle x-ray scattering static structure factors and confirm the long-range electrostatic nature of the arrested structure. These findings are attributed to the different time scales controlling the competing attractive and repulsive interactions.
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Affiliation(s)
- B Ruzicka
- SOFT INFM-CNR and Dipartimento di Fisica, Sapienza Università di Roma, I-00185, Italy
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36
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Pusey PN, Zaccarelli E, Valeriani C, Sanz E, Poon WCK, Cates ME. Hard spheres: crystallization and glass formation. Philos Trans A Math Phys Eng Sci 2009; 367:4993-5011. [PMID: 19933124 DOI: 10.1098/rsta.2009.0181] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Motivated by old experiments on colloidal suspensions, we report molecular dynamics simulations of assemblies of hard spheres, addressing crystallization and glass formation. The simulations cover wide ranges of polydispersity s (standard deviation of the particle size distribution divided by its mean) and particle concentration. No crystallization is observed for s>0.07. For 0.02<s<0.07, we find that increasing the polydispersity at a given concentration slows down crystal nucleation. The main effect here is that polydispersity reduces the supersaturation since it tends to stabilize the fluid but to destabilize the crystal. At a given polydispersity (<0.07), we find three regimes of nucleation: standard nucleation and growth at concentrations in and slightly above the coexistence region; 'spinodal nucleation', where the free-energy barrier to nucleation appears to be negligible, at intermediate concentrations; and, at the highest concentrations, a new mechanism, still to be fully understood, which only requires small rearrangement of the particle positions. The cross-over between the second and third regimes occurs at a concentration, approximately 58 per cent by volume, where the colloid experiments show a marked change in the nature of the crystals formed and the particle dynamics indicate an 'ideal' glass transition.
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Affiliation(s)
- P N Pusey
- SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
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37
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Di Cola E, Moussaïd A, Sztucki M, Narayanan T, Zaccarelli E. Correlation between structure and rheology of a model colloidal glass. J Chem Phys 2009; 131:144903. [DOI: 10.1063/1.3240345] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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38
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Zaccarelli E, Valeriani C, Sanz E, Poon WCK, Cates ME, Pusey PN. Crystallization of hard-sphere glasses. Phys Rev Lett 2009; 103:135704. [PMID: 19905525 DOI: 10.1103/physrevlett.103.135704] [Citation(s) in RCA: 133] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2009] [Indexed: 05/28/2023]
Abstract
We study by molecular dynamics the interplay between arrest and crystallization in hard spheres. For state points in the plane of volume fraction (0.54 <or= varphi <or= 0.63) and polydispersity (0 <or= s <or= 0.085), we delineate states that spontaneously crystallize from those that do not. For noncrystallizing (or precrystallization) samples we find isodiffusivity lines consistent with an ideal glass transition at varphi_{g} approximately 0.585, independent of s. Despite this, for s < 0.05, crystallization occurs at varphi > varphi_{g}. This happens on time scales for which the system is aging, and a diffusive regime in the mean square displacement is not reached; by those criteria, the system is a glass. Hence, contrary to a widespread assumption in the colloid literature, the occurrence of spontaneous crystallization within a bulk amorphous state does not prove that this state was an ergodic fluid rather than a glass.
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Affiliation(s)
- E Zaccarelli
- Dipartimento di Fisica and CNR-INFM-SOFT, Universitá di Roma La Sapienza, 00185, Roma, Italy
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39
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Corezzi S, De Michele C, Zaccarelli E, Tartaglia P, Sciortino F. Connecting Irreversible to Reversible Aggregation: Time and Temperature. J Phys Chem B 2009; 113:1233-6. [DOI: 10.1021/jp809031d] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S. Corezzi
- CNR-INFM Polylab, CNR-INFM Polylab, Largo Pontercorvo 3, I-56127 Pisa, Italy, and CNR-INFM SOFT, Dipartimento di Fisica, and CNR-INFM SMC, Università di Roma “La Sapienza”, Piazzale A. Moro 2, I-00185 Roma, Italy
| | - C. De Michele
- CNR-INFM Polylab, CNR-INFM Polylab, Largo Pontercorvo 3, I-56127 Pisa, Italy, and CNR-INFM SOFT, Dipartimento di Fisica, and CNR-INFM SMC, Università di Roma “La Sapienza”, Piazzale A. Moro 2, I-00185 Roma, Italy
| | - E. Zaccarelli
- CNR-INFM Polylab, CNR-INFM Polylab, Largo Pontercorvo 3, I-56127 Pisa, Italy, and CNR-INFM SOFT, Dipartimento di Fisica, and CNR-INFM SMC, Università di Roma “La Sapienza”, Piazzale A. Moro 2, I-00185 Roma, Italy
| | - P. Tartaglia
- CNR-INFM Polylab, CNR-INFM Polylab, Largo Pontercorvo 3, I-56127 Pisa, Italy, and CNR-INFM SOFT, Dipartimento di Fisica, and CNR-INFM SMC, Università di Roma “La Sapienza”, Piazzale A. Moro 2, I-00185 Roma, Italy
| | - F. Sciortino
- CNR-INFM Polylab, CNR-INFM Polylab, Largo Pontercorvo 3, I-56127 Pisa, Italy, and CNR-INFM SOFT, Dipartimento di Fisica, and CNR-INFM SMC, Università di Roma “La Sapienza”, Piazzale A. Moro 2, I-00185 Roma, Italy
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40
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Mayer C, Zaccarelli E, Stiakakis E, Likos CN, Sciortino F, Munam A, Gauthier M, Hadjichristidis N, Iatrou H, Tartaglia P, Löwen H, Vlassopoulos D. Asymmetric caging in soft colloidal mixtures. Nat Mater 2008; 7:780-4. [PMID: 18794859 DOI: 10.1038/nmat2286] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2008] [Accepted: 08/19/2008] [Indexed: 05/23/2023]
Abstract
The long-standing observations that different amorphous materials exhibit a pronounced enhancement of viscosity and eventually vitrify on compression or cooling continue to fascinate and challenge scientists, on the ground of their physical origin and practical implications. Glass formation is a generic phenomenon, observed in physically quite distinct systems that encompass hard and soft particles. It is believed that a common underlying scenario, namely cage formation, drives dynamical arrest, especially at high concentrations. Here, we identify a novel, asymmetric glassy state in soft colloidal mixtures, which is characterized by strongly anisotropically distorted cages, bearing similarities to those of hard-sphere glasses under shear. The anisotropy is induced by the presence of soft additives. This phenomenon seems to be generic to soft colloids and its origins lie in the penetrability of the constituent particles. The resulting phase diagram for mixtures of soft particles is clearly distinct from that of hard-sphere mixtures and brings forward a rich variety of vitrified states that delineate an ergodic lake in the parameter space spanned by the size ratio between the two components and by the concentration of the additives. Thus, a new route opens for the rational design of soft particles with desired tunable rheological properties.
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Affiliation(s)
- C Mayer
- Dipartimento di Fisica and CNR-INFM-SOFT, Università di Roma La Sapienza, I-00185 Rome, Italy.
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41
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Laurati M, Stellbrink J, Lund R, Willner L, Zaccarelli E, Richter D. Asymmetric poly(ethylene-alt-propylene)-poly(ethylene oxide) micelles: a system with starlike morphology and interactions. Phys Rev E Stat Nonlin Soft Matter Phys 2007; 76:041503. [PMID: 17994990 DOI: 10.1103/physreve.76.041503] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2007] [Indexed: 05/25/2023]
Abstract
We report on an experimental study of single particle properties and interactions of poly(ethylene-alt-propylene)-poly(ethylene oxide) (PEP-PEO) starlike micelles. The starlike regime is achieved by an extremely asymmetric block ratio (1:20) and the number of arms (functionality) is changed by varying the composition of the solvent (the interfacial tension). Small angle neutron scattering (SANS) data in the dilute regime can be modeled by assuming a constant density profile in the micellar core (compact core) and a starlike density profile in the corona (starlike shell). The starlike morphology of the corona is confirmed by a direct comparison with SANS measurements of dilute poly butadiene star solutions. Comparison of structure factors obtained by SANS measurements in the concentrated regime shows in addition that the interactions in the two systems are equivalent. Micellar structure factors at several packing fractions can be modeled by using the ultrasoft potential recently proposed for star polymers [Likos, Phys. Rev. Lett. 80, 4450 (1998)]. The experimental phase diagram of PEP-PEO micelles is quantitatively compared to theoretical expectations, finding good agreement for the location of the liquid-solid boundary and excellent agreement for the critical packing fraction where the liquid-to-bcc crystal transition takes place for f<70. The functionality, i.e., the coronal density, strongly influences the nature of the solid phase: for f<70 the system crystallizes into a bcc phase, high f>70 formation of amorphous arrested states prevents crystallization.
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Affiliation(s)
- M Laurati
- Institut für Festkörperforschung, Forschungszentrum Jülich, 52425 Jülich, Germany.
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42
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Moreno AJ, Saika-Voivod I, Zaccarelli E, La Nave E, Buldyrev SV, Tartaglia P, Sciortino F. Non-Gaussian energy landscape of a simple model for strong network-forming liquids: Accurate evaluation of the configurational entropy. J Chem Phys 2006; 124:204509. [PMID: 16774355 DOI: 10.1063/1.2196879] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We present a numerical study of the statistical properties of the potential energy landscape of a simple model for strong network-forming liquids. The model is a system of spherical particles interacting through a square-well potential, with an additional constraint that limits the maximum number of bonds Nmax per particle. Extensive simulations have been carried out as a function of temperature, packing fraction, and Nmax. The dynamics of this model are characterized by Arrhenius temperature dependence of the transport coefficients and by nearly exponential relaxation of dynamic correlators, i.e., features defining strong glass-forming liquids. This model has two important features: (i) Landscape basins can be associated with bonding patterns. (ii) The configurational volume of the basin can be evaluated in a formally exact way, and numerically with an arbitrary precision. These features allow us to evaluate the number of different topologies the bonding pattern can adopt. We find that the number of fully bonded configurations, i.e., configurations in which all particles are bonded to Nmax neighbors, is extensive, suggesting that the configurational entropy of the low temperature fluid is finite. We also evaluate the energy dependence of the configurational entropy close to the fully bonded state and show that it follows a logarithmic functional form, different from the quadratic dependence characterizing fragile liquids. We suggest that the presence of a discrete energy scale, provided by the particle bonds, and the intrinsic degeneracy of fully bonded disordered networks differentiates strong from fragile behavior.
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Affiliation(s)
- A J Moreno
- Dipartimento di Fisica, Università degli Studi di Roma La Sapienza, Piazzale Aldo Moro 2, I-00185 Roma, Italy.
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43
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Zaccarelli E, Saika-Voivod I, Buldyrev SV, Moreno AJ, Tartaglia P, Sciortino F. Gel to glass transition in simulation of a valence-limited colloidal system. J Chem Phys 2006; 124:124908. [PMID: 16599726 DOI: 10.1063/1.2177241] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We numerically study a simple model for thermoreversible colloidal gelation in which particles can form reversible bonds with a predefined maximum number of neighbors. We focus on three and four maximally coordinated particles, since in these two cases the low valency makes it possible to probe, in equilibrium, slow dynamics down to very low temperatures T. By studying a large region of T and packing fraction phi we are able to estimate both the location of the liquid-gas phase separation spinodal and the locus of dynamic arrest, where the system is trapped in a disordered nonergodic state. We find that there are two distinct arrest lines for the system: a glass line at high packing fraction, and a gel line at low phi and T. The former is rather vertical (phi controlled), while the latter is rather horizontal (T controlled) in the phi-T plane. Dynamics on approaching the glass line along isotherms exhibit a power-law dependence on phi, while dynamics along isochores follow an activated (Arrhenius) dependence. The gel has clearly distinct properties from those of both a repulsive and an attractive glass. A gel to glass crossover occurs in a fairly narrow range in phi along low-T isotherms, seen most strikingly in the behavior of the nonergodicity factor. Interestingly, we detect the presence of anomalous dynamics, such as subdiffusive behavior for the mean squared displacement and logarithmic decay for the density correlation functions in the region where the gel dynamics interferes with the glass dynamics.
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Affiliation(s)
- E Zaccarelli
- Dipartimento di Fisica and CNR-INFM-SOFT, Universitá di Roma La Sapienza, Piazzale Aldo Moro 2, I-00185, Roma, Italy.
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44
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Zaccarelli E, Mayer C, Asteriadi A, Likos CN, Sciortino F, Roovers J, Iatrou H, Hadjichristidis N, Tartaglia P, Löwen H, Vlassopoulos D. Tailoring the flow of soft glasses by soft additives. Phys Rev Lett 2005; 95:268301. [PMID: 16486412 DOI: 10.1103/physrevlett.95.268301] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2005] [Indexed: 05/06/2023]
Abstract
We examine the vitrification and melting of asymmetric star polymer mixtures by combining rheological measurements with mode coupling theory. We identify two types of glassy states, a single glass, in which the small component is fluid in the glassy matrix of the big one, and a double glass, in which both components are vitrified. Addition of small-star polymers leads to melting of both glasses, and the melting curve has a nonmonotonic dependence on the star-star size ratio. The phenomenon opens new ways for externally steering the rheological behavior of soft matter systems.
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Affiliation(s)
- E Zaccarelli
- Dipartimento di Fisica and CNR-INFM-SOFT, Università di Roma La Sapienza, Rome, Italy
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45
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Sciortino F, Tartaglia P, Zaccarelli E. One-Dimensional Cluster Growth and Branching Gels in Colloidal Systems with Short-Range Depletion Attraction and Screened Electrostatic Repulsion. J Phys Chem B 2005; 109:21942-53. [PMID: 16853852 DOI: 10.1021/jp052683g] [Citation(s) in RCA: 170] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report extensive numerical simulations of a simple model for charged colloidal particles in suspension with small nonadsorbing polymers. The chosen effective one-component interaction potential is composed of a short-range attractive part complemented by a Yukawa repulsive tail. We focus on the case where the screening length is comparable to the particle radius. Under these conditions, at low temperature, particles locally cluster into quasi one-dimensional aggregates which, via a branching mechanism, form a macroscopic percolating gel structure. We discuss gel formation and contrast it with the case of longer screening lengths, for which previous studies have shown that arrest is driven by the approach to a Yukawa glass of spherical clusters. We compare our results with recent experimental work on charged colloidal suspensions (Phys. Rev. Lett. 2005, 94, 208301).
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Affiliation(s)
- F Sciortino
- Dipartimento di Fisica and INFM-CRS-SOFT, Università di Roma La Sapienza, P. le A. Moro 2, 00185 Roma, Italy
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46
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Moreno AJ, Buldyrev SV, La Nave E, Saika-Voivod I, Sciortino F, Tartaglia P, Zaccarelli E. Energy landscape of a simple model for strong liquids. Phys Rev Lett 2005; 95:157802. [PMID: 16241763 DOI: 10.1103/physrevlett.95.157802] [Citation(s) in RCA: 28] [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] [Subscribe] [Scholar Register] [Received: 07/25/2004] [Indexed: 05/05/2023]
Abstract
We calculate the statistical properties of the energy landscape of a minimal model for strong network-forming liquids. Dynamic and thermodynamic properties of this model can be computed with arbitrary precision even at low temperatures. A degenerate disordered ground state and logarithmic statistics for the local minima energy distribution are the landscape signatures of strong liquid behavior. Differences from fragile liquid properties are attributed to the presence of a discrete energy scale, provided by the particle bonds, and to the intrinsic degeneracy of topologically disordered networks.
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Affiliation(s)
- A J Moreno
- Dipartimento di Fisica and INFM-CRS-SMC, Università di Roma La Sapienza, Piazzale Aldo Moro 2, 00185 Roma, Italy
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Zaccarelli E, Buldyrev SV, La Nave E, Moreno AJ, Saika-Voivod I, Sciortino F, Tartaglia P. Model for reversible colloidal gelation. Phys Rev Lett 2005; 94:218301. [PMID: 16090355 DOI: 10.1103/physrevlett.94.218301] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2004] [Indexed: 05/03/2023]
Abstract
We report a numerical study, covering a wide range of packing fraction Phi and temperature T, for a system of particles interacting via a square well potential supplemented by an additional constraint on the maximum number n(max) of bonded interactions. We show that, when n(max)<6, the liquid-gas coexistence region shrinks, giving access to regions of low Phi where dynamics can be followed down to low T without an intervening phase separation. We characterize these arrested states at low densities (gel states) in terms of structure and dynamical slowing down, pointing out features which are very different from the standard glassy states observed at high Phi values.
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Affiliation(s)
- E Zaccarelli
- Dipartimento di Fisica and INFM-CRS SOFT, Università di Roma "La Sapienza", Piazzale Aldo Moro 2, I-00185 Roma, Italy
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Laurati M, Stellbrink J, Lund R, Willner L, Richter D, Zaccarelli E. Starlike micelles with starlike interactions: a quantitative evaluation of structure factors and phase diagram. Phys Rev Lett 2005; 94:195504. [PMID: 16090186 DOI: 10.1103/physrevlett.94.195504] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2004] [Indexed: 05/03/2023]
Abstract
Starlike PEP-PEO block copolymer micelles offer the possibility to investigate the phase behavior and interactions of regular star polymers (ultrasoft colloids). Micellar functionality f can be smoothly varied by changing solvent composition (interfacial tension). Structure factors obtained by small-angle neutron-scattering can be quantitatively described in terms of an effective potential for star polymers. The experimental phase diagram reproduces to a high level of accuracy the predicted liquid-solid transition. Whereas for intermediate f a bcc phase is observed, for high f the formation of a fcc phase is preempted by glass formation.
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Affiliation(s)
- M Laurati
- Institut für Festkörperforschung, Forschungszentrum Jülich, Germany
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Mossa S, Sciortino F, Tartaglia P, Zaccarelli E. Ground-state clusters for short-range attractive and long-range repulsive potentials. Langmuir 2004; 20:10756-63. [PMID: 15544413 DOI: 10.1021/la048554t] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
We report calculations of the ground-state energies and geometries for clusters of different sizes (up to 80 particles), where individual particles interact simultaneously via a short-ranged attractive potential, modeled with a generalization of the Lennard-Jones potential, and a long-ranged repulsive Yukawa potential. We show that for specific choices of the parameters of the repulsive potential, the ground-state energy per particle has a minimum at a finite cluster size. For these values of the parameters in the thermodynamic limit, at low temperatures and small packing fractions, where clustering is favored and cluster-cluster interactions can be neglected, thermodynamically stable cluster phases can be formed. The analysis of the ground-state geometries shows that the spherical shape is marginally stable. In the majority of the studied cases, we find that above a certain size, ground-state clusters preferentially grow almost in one dimension.
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Affiliation(s)
- S Mossa
- Dipartimento di Fisica and INFM Udr and SOFT, Complex Dynamics in Structured Systems, Università di Roma La Sapienza, P.le A. Moro 2, I-00185, Roma, Italy.
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Saika-Voivod I, Zaccarelli E, Sciortino F, Buldyrev SV, Tartaglia P. Effect of bond lifetime on the dynamics of a short-range attractive colloidal system. Phys Rev E Stat Nonlin Soft Matter Phys 2004; 70:041401. [PMID: 15600402 DOI: 10.1103/physreve.70.041401] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2004] [Revised: 06/10/2004] [Indexed: 05/24/2023]
Abstract
We perform molecular dynamics simulations of short-range attractive colloid particles modeled by a narrow (3% of the hard sphere diameter) square well potential of unit depth. We compare the dynamics of systems with the same thermodynamics but different bond lifetimes, by adding to the square well potential a thin barrier at the edge of the attractive well. For permanent bonds, the relaxation time tau diverges as the packing fraction phi approaches a threshold related to percolation, while for short-lived bonds, the phi dependence of tau is more typical of a glassy system. At intermediate bond lifetimes, the phi dependence of tau is driven by percolation at low phi , but then crosses over to glassy behavior at higher phi . We also study the wave vector dependence of the percolation dynamics.
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Affiliation(s)
- I Saika-Voivod
- Dipartimento di Fisica and Istituto Nazionale per la Fisica della Materia, Università di Roma La Sapienza, Piazzale Aldo Moro 2, I-00185, Roma, Italy
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